Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller: "Highlights (1721 non-merge commits, this has to be a record of some sort): 1) Add 'random' mode to team driver, from Jiri Pirko and Eric Dumazet. 2) Make it so that any driver that supports configuration of multiple MAC addresses can provide the forwarding database add and del calls by providing a default implementation and hooking that up if the driver doesn't have an explicit set of handlers. From Vlad Yasevich. 3) Support GSO segmentation over tunnels and other encapsulating devices such as VXLAN, from Pravin B Shelar. 4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton. 5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita Dukkipati. 6) In the PHY layer, allow supporting wake-on-lan in situations where the PHY registers have to be written for it to be configured. Use it to support wake-on-lan in mv643xx_eth. From Michael Stapelberg. 7) Significantly improve firewire IPV6 support, from YOSHIFUJI Hideaki. 8) Allow multiple packets to be sent in a single transmission using network coding in batman-adv, from Martin Hundebøll. 9) Add support for T5 cxgb4 chips, from Santosh Rastapur. 10) Generalize the VXLAN forwarding tables so that there is more flexibility in configurating various aspects of the endpoints. From David Stevens. 11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver, from Dmitry Kravkov. 12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo Neira Ayuso. 13) Start adding networking selftests. 14) In situations of overload on the same AF_PACKET fanout socket, or per-cpu packet receive queue, minimize drop by distributing the load to other cpus/fanouts. From Willem de Bruijn and Eric Dumazet. 15) Add support for new payload offset BPF instruction, from Daniel Borkmann. 16) Convert several drivers over to mdoule_platform_driver(), from Sachin Kamat. 17) Provide a minimal BPF JIT image disassembler userspace tool, from Daniel Borkmann. 18) Rewrite F-RTO implementation in TCP to match the final specification of it in RFC4138 and RFC5682. From Yuchung Cheng. 19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear you like netlink, so I implemented netlink dumping of netlink sockets.") From Andrey Vagin. 20) Remove ugly passing of rtnetlink attributes into rtnl_doit functions, from Thomas Graf. 21) Allow userspace to be able to see if a configuration change occurs in the middle of an address or device list dump, from Nicolas Dichtel. 22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes Frederic Sowa. 23) Increase accuracy of packet length used by packet scheduler, from Jason Wang. 24) Beginning set of changes to make ipv4/ipv6 fragment handling more scalable and less susceptible to overload and locking contention, from Jesper Dangaard Brouer. 25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*() instead. From Hong Zhiguo. 26) Optimize route usage in IPVS by avoiding reference counting where possible, from Julian Anastasov. 27) Convert IPVS schedulers to RCU, also from Julian Anastasov. 28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger Eitzenberger. 29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG, nfnetlink_log, and nfnetlink_queue. From Gao feng. 30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa. 31) Support several new r8169 chips, from Hayes Wang. 32) Support tokenized interface identifiers in ipv6, from Daniel Borkmann. 33) Use usbnet_link_change() helper in USB net driver, from Ming Lei. 34) Add 802.1ad vlan offload support, from Patrick McHardy. 35) Support mmap() based netlink communication, also from Patrick McHardy. 36) Support HW timestamping in mlx4 driver, from Amir Vadai. 37) Rationalize AF_PACKET packet timestamping when transmitting, from Willem de Bruijn and Daniel Borkmann. 38) Bring parity to what's provided by /proc/net/packet socket dumping and the info provided by netlink socket dumping of AF_PACKET sockets. From Nicolas Dichtel. 39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin Poirier" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits) filter: fix va_list build error af_unix: fix a fatal race with bit fields bnx2x: Prevent memory leak when cnic is absent bnx2x: correct reading of speed capabilities net: sctp: attribute printl with __printf for gcc fmt checks netlink: kconfig: move mmap i/o into netlink kconfig netpoll: convert mutex into a semaphore netlink: Fix skb ref counting. net_sched: act_ipt forward compat with xtables mlx4_en: fix a build error on 32bit arches Revert "bnx2x: allow nvram test to run when device is down" bridge: avoid OOPS if root port not found drivers: net: cpsw: fix kernel warn on cpsw irq enable sh_eth: use random MAC address if no valid one supplied 3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA) tg3: fix to append hardware time stamping flags unix/stream: fix peeking with an offset larger than data in queue unix/dgram: fix peeking with an offset larger than data in queue unix/dgram: peek beyond 0-sized skbs openvswitch: Remove unneeded ovs_netdev_get_ifindex() ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2013-05-01 14:08:52 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2013-05-01 14:08:52 -0700
commit: 73287a43cc79ca06629a88d1a199cd283f42456a (patch)
tree: acf4456e260115bea77ee31a29f10ce17f0db45c /drivers/net/wireless/brcm80211/brcmfmac
parent: 251df49db3327c64bf917bfdba94491fde2b4ee0 (diff)
parent: 20074f357da4a637430aec2879c9d864c5d2c23c (diff)
download: blackbird-op-linux-73287a43cc79ca06629a88d1a199cd283f42456a.tar.gz
blackbird-op-linux-73287a43cc79ca06629a88d1a199cd283f42456a.zip
28 files changed, 4852 insertions, 1028 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/Makefile b/drivers/net/wireless/brcm80211/brcmfmac/Makefile
index 756e19fc2795..8e9b1221b32c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/Makefile
+++ b/drivers/net/wireless/brcm80211/brcmfmac/Makefile
@@ -26,10 +26,12 @@ brcmfmac-objs += \
 		wl_cfg80211.o \
 		fwil.o \
 		fweh.o \
+		fwsignal.o \
 		p2p.o \
 		dhd_cdc.o \
 		dhd_common.o \
-		dhd_linux.o
+		dhd_linux.o \
+		btcoex.o
 brcmfmac-$(CONFIG_BRCMFMAC_SDIO) += \
 		dhd_sdio.o \
 		bcmsdh.o \
@@ -39,3 +41,5 @@ brcmfmac-$(CONFIG_BRCMFMAC_USB) += \
 		usb.o
 brcmfmac-$(CONFIG_BRCMDBG) += \
 		dhd_dbg.o
+brcmfmac-$(CONFIG_BRCM_TRACING) += \
+		tracepoint.o
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 11fd1c735589..4891e3df2058 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -25,6 +25,7 @@
 #include <linux/mmc/sdio.h>
 #include <linux/mmc/sdio_func.h>
 #include <linux/mmc/card.h>
+#include <linux/platform_data/brcmfmac-sdio.h>
 
 #include <defs.h>
 #include <brcm_hw_ids.h>
@@ -37,16 +38,15 @@
 
 #define SDIOH_API_ACCESS_RETRY_LIMIT	2
 
-#ifdef CONFIG_BRCMFMAC_SDIO_OOB
-static irqreturn_t brcmf_sdio_irqhandler(int irq, void *dev_id)
+
+static irqreturn_t brcmf_sdio_oob_irqhandler(int irq, void *dev_id)
 {
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev_id);
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 
-	brcmf_dbg(INTR, "oob intr triggered\n");
+	brcmf_dbg(INTR, "OOB intr triggered\n");
 
-	/*
-	 * out-of-band interrupt is level-triggered which won't
+	/* out-of-band interrupt is level-triggered which won't
 	 * be cleared until dpc
 	 */
 	if (sdiodev->irq_en) {
@@ -59,72 +59,12 @@ static irqreturn_t brcmf_sdio_irqhandler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-int brcmf_sdio_intr_register(struct brcmf_sdio_dev *sdiodev)
-{
-	int ret = 0;
-	u8 data;
-	unsigned long flags;
-
-	brcmf_dbg(TRACE, "Entering: irq %d\n", sdiodev->irq);
-
-	ret = request_irq(sdiodev->irq, brcmf_sdio_irqhandler,
-			  sdiodev->irq_flags, "brcmf_oob_intr",
-			  &sdiodev->func[1]->dev);
-	if (ret != 0)
-		return ret;
-	spin_lock_init(&sdiodev->irq_en_lock);
-	spin_lock_irqsave(&sdiodev->irq_en_lock, flags);
-	sdiodev->irq_en = true;
-	spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags);
-
-	ret = enable_irq_wake(sdiodev->irq);
-	if (ret != 0)
-		return ret;
-	sdiodev->irq_wake = true;
-
-	sdio_claim_host(sdiodev->func[1]);
-
-	/* must configure SDIO_CCCR_IENx to enable irq */
-	data = brcmf_sdio_regrb(sdiodev, SDIO_CCCR_IENx, &ret);
-	data |= 1 << SDIO_FUNC_1 | 1 << SDIO_FUNC_2 | 1;
-	brcmf_sdio_regwb(sdiodev, SDIO_CCCR_IENx, data, &ret);
-
-	/* redirect, configure and enable io for interrupt signal */
-	data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE;
-	if (sdiodev->irq_flags & IRQF_TRIGGER_HIGH)
-		data |= SDIO_SEPINT_ACT_HI;
-	brcmf_sdio_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, data, &ret);
-
-	sdio_release_host(sdiodev->func[1]);
-
-	return 0;
-}
-
-int brcmf_sdio_intr_unregister(struct brcmf_sdio_dev *sdiodev)
-{
-	brcmf_dbg(TRACE, "Entering\n");
-
-	sdio_claim_host(sdiodev->func[1]);
-	brcmf_sdio_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, 0, NULL);
-	brcmf_sdio_regwb(sdiodev, SDIO_CCCR_IENx, 0, NULL);
-	sdio_release_host(sdiodev->func[1]);
-
-	if (sdiodev->irq_wake) {
-		disable_irq_wake(sdiodev->irq);
-		sdiodev->irq_wake = false;
-	}
-	free_irq(sdiodev->irq, &sdiodev->func[1]->dev);
-	sdiodev->irq_en = false;
-
-	return 0;
-}
-#else		/* CONFIG_BRCMFMAC_SDIO_OOB */
-static void brcmf_sdio_irqhandler(struct sdio_func *func)
+static void brcmf_sdio_ib_irqhandler(struct sdio_func *func)
 {
 	struct brcmf_bus *bus_if = dev_get_drvdata(&func->dev);
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 
-	brcmf_dbg(INTR, "ib intr triggered\n");
+	brcmf_dbg(INTR, "IB intr triggered\n");
 
 	brcmf_sdbrcm_isr(sdiodev->bus);
 }
@@ -136,28 +76,89 @@ static void brcmf_sdio_dummy_irqhandler(struct sdio_func *func)
 
 int brcmf_sdio_intr_register(struct brcmf_sdio_dev *sdiodev)
 {
-	brcmf_dbg(TRACE, "Entering\n");
+	int ret = 0;
+	u8 data;
+	unsigned long flags;
 
-	sdio_claim_host(sdiodev->func[1]);
-	sdio_claim_irq(sdiodev->func[1], brcmf_sdio_irqhandler);
-	sdio_claim_irq(sdiodev->func[2], brcmf_sdio_dummy_irqhandler);
-	sdio_release_host(sdiodev->func[1]);
+	if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) {
+		brcmf_dbg(SDIO, "Enter, register OOB IRQ %d\n",
+			  sdiodev->pdata->oob_irq_nr);
+		ret = request_irq(sdiodev->pdata->oob_irq_nr,
+				  brcmf_sdio_oob_irqhandler,
+				  sdiodev->pdata->oob_irq_flags,
+				  "brcmf_oob_intr",
+				  &sdiodev->func[1]->dev);
+		if (ret != 0) {
+			brcmf_err("request_irq failed %d\n", ret);
+			return ret;
+		}
+		sdiodev->oob_irq_requested = true;
+		spin_lock_init(&sdiodev->irq_en_lock);
+		spin_lock_irqsave(&sdiodev->irq_en_lock, flags);
+		sdiodev->irq_en = true;
+		spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags);
+
+		ret = enable_irq_wake(sdiodev->pdata->oob_irq_nr);
+		if (ret != 0) {
+			brcmf_err("enable_irq_wake failed %d\n", ret);
+			return ret;
+		}
+		sdiodev->irq_wake = true;
+
+		sdio_claim_host(sdiodev->func[1]);
+
+		/* must configure SDIO_CCCR_IENx to enable irq */
+		data = brcmf_sdio_regrb(sdiodev, SDIO_CCCR_IENx, &ret);
+		data |= 1 << SDIO_FUNC_1 | 1 << SDIO_FUNC_2 | 1;
+		brcmf_sdio_regwb(sdiodev, SDIO_CCCR_IENx, data, &ret);
+
+		/* redirect, configure and enable io for interrupt signal */
+		data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE;
+		if (sdiodev->pdata->oob_irq_flags & IRQF_TRIGGER_HIGH)
+			data |= SDIO_SEPINT_ACT_HI;
+		brcmf_sdio_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, data, &ret);
+
+		sdio_release_host(sdiodev->func[1]);
+	} else {
+		brcmf_dbg(SDIO, "Entering\n");
+		sdio_claim_host(sdiodev->func[1]);
+		sdio_claim_irq(sdiodev->func[1], brcmf_sdio_ib_irqhandler);
+		sdio_claim_irq(sdiodev->func[2], brcmf_sdio_dummy_irqhandler);
+		sdio_release_host(sdiodev->func[1]);
+	}
 
 	return 0;
 }
 
 int brcmf_sdio_intr_unregister(struct brcmf_sdio_dev *sdiodev)
 {
-	brcmf_dbg(TRACE, "Entering\n");
-
-	sdio_claim_host(sdiodev->func[1]);
-	sdio_release_irq(sdiodev->func[2]);
-	sdio_release_irq(sdiodev->func[1]);
-	sdio_release_host(sdiodev->func[1]);
+	brcmf_dbg(SDIO, "Entering\n");
+
+	if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) {
+		sdio_claim_host(sdiodev->func[1]);
+		brcmf_sdio_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, 0, NULL);
+		brcmf_sdio_regwb(sdiodev, SDIO_CCCR_IENx, 0, NULL);
+		sdio_release_host(sdiodev->func[1]);
+
+		if (sdiodev->oob_irq_requested) {
+			sdiodev->oob_irq_requested = false;
+			if (sdiodev->irq_wake) {
+				disable_irq_wake(sdiodev->pdata->oob_irq_nr);
+				sdiodev->irq_wake = false;
+			}
+			free_irq(sdiodev->pdata->oob_irq_nr,
+				 &sdiodev->func[1]->dev);
+			sdiodev->irq_en = false;
+		}
+	} else {
+		sdio_claim_host(sdiodev->func[1]);
+		sdio_release_irq(sdiodev->func[2]);
+		sdio_release_irq(sdiodev->func[1]);
+		sdio_release_host(sdiodev->func[1]);
+	}
 
 	return 0;
 }
-#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */
 
 int
 brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address)
@@ -253,9 +254,9 @@ u8 brcmf_sdio_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret)
 	u8 data;
 	int retval;
 
-	brcmf_dbg(INFO, "addr:0x%08x\n", addr);
+	brcmf_dbg(SDIO, "addr:0x%08x\n", addr);
 	retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, false);
-	brcmf_dbg(INFO, "data:0x%02x\n", data);
+	brcmf_dbg(SDIO, "data:0x%02x\n", data);
 
 	if (ret)
 		*ret = retval;
@@ -268,9 +269,9 @@ u32 brcmf_sdio_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret)
 	u32 data;
 	int retval;
 
-	brcmf_dbg(INFO, "addr:0x%08x\n", addr);
+	brcmf_dbg(SDIO, "addr:0x%08x\n", addr);
 	retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, false);
-	brcmf_dbg(INFO, "data:0x%08x\n", data);
+	brcmf_dbg(SDIO, "data:0x%08x\n", data);
 
 	if (ret)
 		*ret = retval;
@@ -283,7 +284,7 @@ void brcmf_sdio_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr,
 {
 	int retval;
 
-	brcmf_dbg(INFO, "addr:0x%08x, data:0x%02x\n", addr, data);
+	brcmf_dbg(SDIO, "addr:0x%08x, data:0x%02x\n", addr, data);
 	retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, true);
 
 	if (ret)
@@ -295,7 +296,7 @@ void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
 {
 	int retval;
 
-	brcmf_dbg(INFO, "addr:0x%08x, data:0x%08x\n", addr, data);
+	brcmf_dbg(SDIO, "addr:0x%08x, data:0x%08x\n", addr, data);
 	retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, true);
 
 	if (ret)
@@ -358,7 +359,7 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	uint width;
 	int err = 0;
 
-	brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n",
+	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pkt->len);
 
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
@@ -381,7 +382,7 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	uint width;
 	int err = 0;
 
-	brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n",
+	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pktq->qlen);
 
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
@@ -428,7 +429,7 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
 	int err = 0;
 
-	brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n",
+	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pkt->len);
 
 	/* Async not implemented yet */
@@ -457,48 +458,92 @@ done:
 	return err;
 }
 
-int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw, u32 addr,
-			u8 *buf, uint nbytes)
+int
+brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
+		 u8 *data, uint size)
 {
-	struct sk_buff *mypkt;
-	bool write = rw ? SDIOH_WRITE : SDIOH_READ;
-	int err;
+	int bcmerror = 0;
+	struct sk_buff *pkt;
+	u32 sdaddr;
+	uint dsize;
+
+	dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size);
+	pkt = dev_alloc_skb(dsize);
+	if (!pkt) {
+		brcmf_err("dev_alloc_skb failed: len %d\n", dsize);
+		return -EIO;
+	}
+	pkt->priority = 0;
 
-	addr &= SBSDIO_SB_OFT_ADDR_MASK;
-	addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
+	/* Determine initial transfer parameters */
+	sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK;
+	if ((sdaddr + size) & SBSDIO_SBWINDOW_MASK)
+		dsize = (SBSDIO_SB_OFT_ADDR_LIMIT - sdaddr);
+	else
+		dsize = size;
 
-	mypkt = brcmu_pkt_buf_get_skb(nbytes);
-	if (!mypkt) {
-		brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n",
-			  nbytes);
-		return -EIO;
+	sdio_claim_host(sdiodev->func[1]);
+
+	/* Do the transfer(s) */
+	while (size) {
+		/* Set the backplane window to include the start address */
+		bcmerror = brcmf_sdcard_set_sbaddr_window(sdiodev, address);
+		if (bcmerror)
+			break;
+
+		brcmf_dbg(SDIO, "%s %d bytes at offset 0x%08x in window 0x%08x\n",
+			  write ? "write" : "read", dsize,
+			  sdaddr, address & SBSDIO_SBWINDOW_MASK);
+
+		sdaddr &= SBSDIO_SB_OFT_ADDR_MASK;
+		sdaddr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
+
+		skb_put(pkt, dsize);
+		if (write)
+			memcpy(pkt->data, data, dsize);
+		bcmerror = brcmf_sdioh_request_buffer(sdiodev, SDIOH_DATA_INC,
+						      write, SDIO_FUNC_1,
+						      sdaddr, pkt);
+		if (bcmerror) {
+			brcmf_err("membytes transfer failed\n");
+			break;
+		}
+		if (!write)
+			memcpy(data, pkt->data, dsize);
+		skb_trim(pkt, dsize);
+
+		/* Adjust for next transfer (if any) */
+		size -= dsize;
+		if (size) {
+			data += dsize;
+			address += dsize;
+			sdaddr = 0;
+			dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size);
+		}
 	}
 
-	/* For a write, copy the buffer data into the packet. */
-	if (write)
-		memcpy(mypkt->data, buf, nbytes);
+	dev_kfree_skb(pkt);
 
-	err = brcmf_sdioh_request_buffer(sdiodev, SDIOH_DATA_INC, write,
-					 SDIO_FUNC_1, addr, mypkt);
+	/* Return the window to backplane enumeration space for core access */
+	if (brcmf_sdcard_set_sbaddr_window(sdiodev, sdiodev->sbwad))
+		brcmf_err("FAILED to set window back to 0x%x\n",
+			  sdiodev->sbwad);
 
-	/* For a read, copy the packet data back to the buffer. */
-	if (!err && !write)
-		memcpy(buf, mypkt->data, nbytes);
+	sdio_release_host(sdiodev->func[1]);
 
-	brcmu_pkt_buf_free_skb(mypkt);
-	return err;
+	return bcmerror;
 }
 
 int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn)
 {
 	char t_func = (char)fn;
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
 	/* issue abort cmd52 command through F0 */
 	brcmf_sdioh_request_byte(sdiodev, SDIOH_WRITE, SDIO_FUNC_0,
 				 SDIO_CCCR_ABORT, &t_func);
 
-	brcmf_dbg(TRACE, "Exit\n");
+	brcmf_dbg(SDIO, "Exit\n");
 	return 0;
 }
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index d92d373733d7..44fa0cdbf97b 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -26,6 +26,7 @@
 #include <linux/sched.h>	/* request_irq() */
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/platform_data/brcmfmac-sdio.h>
 #include <net/cfg80211.h>
 
 #include <defs.h>
@@ -40,32 +41,30 @@
 
 #define DMA_ALIGN_MASK	0x03
 
+#define SDIO_DEVICE_ID_BROADCOM_43143	43143
 #define SDIO_DEVICE_ID_BROADCOM_43241	0x4324
 #define SDIO_DEVICE_ID_BROADCOM_4329	0x4329
 #define SDIO_DEVICE_ID_BROADCOM_4330	0x4330
 #define SDIO_DEVICE_ID_BROADCOM_4334	0x4334
+#define SDIO_DEVICE_ID_BROADCOM_4335	0x4335
 
 #define SDIO_FUNC1_BLOCKSIZE		64
 #define SDIO_FUNC2_BLOCKSIZE		512
 
 /* devices we support, null terminated */
 static const struct sdio_device_id brcmf_sdmmc_ids[] = {
+	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43143)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43241)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4335)},
 	{ /* end: all zeroes */ },
 };
 MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
 
-#ifdef CONFIG_BRCMFMAC_SDIO_OOB
-static struct list_head oobirq_lh;
-struct brcmf_sdio_oobirq {
-	unsigned int irq;
-	unsigned long flags;
-	struct list_head list;
-};
-#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */
+static struct brcmfmac_sdio_platform_data *brcmfmac_sdio_pdata;
+
 
 static bool
 brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
@@ -139,7 +138,7 @@ int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
 {
 	int err_ret;
 
-	brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);
+	brcmf_dbg(SDIO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);
 
 	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait);
 	if (brcmf_pm_resume_error(sdiodev))
@@ -179,7 +178,7 @@ int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 		return -EINVAL;
 	}
 
-	brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
+	brcmf_dbg(SDIO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
 		  rw, func, addr, nbytes);
 
 	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
@@ -252,7 +251,7 @@ brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 
 	struct sk_buff *pkt;
 
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
 	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
 	if (brcmf_pm_resume_error(sdiodev))
@@ -270,7 +269,7 @@ brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 				  write ? "TX" : "RX", pkt, SGCount, addr,
 				  pkt_len, err_ret);
 		} else {
-			brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
+			brcmf_dbg(SDIO, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
 				  write ? "TX" : "RX", pkt, SGCount, addr,
 				  pkt_len);
 		}
@@ -280,7 +279,7 @@ brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 		SGCount++;
 	}
 
-	brcmf_dbg(TRACE, "Exit\n");
+	brcmf_dbg(SDIO, "Exit\n");
 	return err_ret;
 }
 
@@ -295,7 +294,7 @@ int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
 	uint pkt_len;
 	bool fifo = (fix_inc == SDIOH_DATA_FIX);
 
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
 	if (pkt == NULL)
 		return -EINVAL;
@@ -314,7 +313,7 @@ int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
 		brcmf_err("%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
 			  write ? "TX" : "RX", pkt, addr, pkt_len, status);
 	} else {
-		brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n",
+		brcmf_dbg(SDIO, "%s xfr'd %p, addr=0x%05x, len=%d\n",
 			  write ? "TX" : "RX", pkt, addr, pkt_len);
 	}
 
@@ -350,12 +349,12 @@ static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev)
 	u32 fbraddr;
 	u8 func;
 
-	brcmf_dbg(TRACE, "\n");
+	brcmf_dbg(SDIO, "\n");
 
 	/* Get the Card's common CIS address */
 	sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev,
 							   SDIO_CCCR_CIS);
-	brcmf_dbg(INFO, "Card's Common CIS Ptr = 0x%x\n",
+	brcmf_dbg(SDIO, "Card's Common CIS Ptr = 0x%x\n",
 		  sdiodev->func_cis_ptr[0]);
 
 	/* Get the Card's function CIS (for each function) */
@@ -363,7 +362,7 @@ static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev)
 	     func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) {
 		sdiodev->func_cis_ptr[func] =
 		    brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr);
-		brcmf_dbg(INFO, "Function %d CIS Ptr = 0x%x\n",
+		brcmf_dbg(SDIO, "Function %d CIS Ptr = 0x%x\n",
 			  func, sdiodev->func_cis_ptr[func]);
 	}
 
@@ -382,7 +381,7 @@ int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev)
 {
 	int err_ret = 0;
 
-	brcmf_dbg(TRACE, "\n");
+	brcmf_dbg(SDIO, "\n");
 
 	sdiodev->num_funcs = 2;
 
@@ -404,13 +403,13 @@ int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev)
 
 out:
 	sdio_release_host(sdiodev->func[1]);
-	brcmf_dbg(TRACE, "Done\n");
+	brcmf_dbg(SDIO, "Done\n");
 	return err_ret;
 }
 
 void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev)
 {
-	brcmf_dbg(TRACE, "\n");
+	brcmf_dbg(SDIO, "\n");
 
 	/* Disable Function 2 */
 	sdio_claim_host(sdiodev->func[2]);
@@ -424,33 +423,6 @@ void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev)
 
 }
 
-#ifdef CONFIG_BRCMFMAC_SDIO_OOB
-static int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
-{
-	struct brcmf_sdio_oobirq *oobirq_entry;
-
-	if (list_empty(&oobirq_lh)) {
-		brcmf_err("no valid oob irq resource\n");
-		return -ENXIO;
-	}
-
-	oobirq_entry = list_first_entry(&oobirq_lh, struct brcmf_sdio_oobirq,
-					list);
-
-	sdiodev->irq = oobirq_entry->irq;
-	sdiodev->irq_flags = oobirq_entry->flags;
-	list_del(&oobirq_entry->list);
-	kfree(oobirq_entry);
-
-	return 0;
-}
-#else
-static inline int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
-{
-	return 0;
-}
-#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */
-
 static int brcmf_ops_sdio_probe(struct sdio_func *func,
 				const struct sdio_device_id *id)
 {
@@ -458,11 +430,11 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
 	struct brcmf_sdio_dev *sdiodev;
 	struct brcmf_bus *bus_if;
 
-	brcmf_dbg(TRACE, "Enter\n");
-	brcmf_dbg(TRACE, "Class=%x\n", func->class);
-	brcmf_dbg(TRACE, "sdio vendor ID: 0x%04x\n", func->vendor);
-	brcmf_dbg(TRACE, "sdio device ID: 0x%04x\n", func->device);
-	brcmf_dbg(TRACE, "Function#: %d\n", func->num);
+	brcmf_dbg(SDIO, "Enter\n");
+	brcmf_dbg(SDIO, "Class=%x\n", func->class);
+	brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor);
+	brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device);
+	brcmf_dbg(SDIO, "Function#: %d\n", func->num);
 
 	/* Consume func num 1 but dont do anything with it. */
 	if (func->num == 1)
@@ -491,23 +463,21 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
 	dev_set_drvdata(&func->dev, bus_if);
 	dev_set_drvdata(&sdiodev->func[1]->dev, bus_if);
 	sdiodev->dev = &sdiodev->func[1]->dev;
+	sdiodev->pdata = brcmfmac_sdio_pdata;
 
 	atomic_set(&sdiodev->suspend, false);
 	init_waitqueue_head(&sdiodev->request_byte_wait);
 	init_waitqueue_head(&sdiodev->request_word_wait);
 	init_waitqueue_head(&sdiodev->request_chain_wait);
 	init_waitqueue_head(&sdiodev->request_buffer_wait);
-	err = brcmf_sdio_getintrcfg(sdiodev);
-	if (err)
-		goto fail;
 
-	brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n");
+	brcmf_dbg(SDIO, "F2 found, calling brcmf_sdio_probe...\n");
 	err = brcmf_sdio_probe(sdiodev);
 	if (err) {
 		brcmf_err("F2 error, probe failed %d...\n", err);
 		goto fail;
 	}
-	brcmf_dbg(TRACE, "F2 init completed...\n");
+	brcmf_dbg(SDIO, "F2 init completed...\n");
 	return 0;
 
 fail:
@@ -523,10 +493,10 @@ static void brcmf_ops_sdio_remove(struct sdio_func *func)
 	struct brcmf_bus *bus_if;
 	struct brcmf_sdio_dev *sdiodev;
 
-	brcmf_dbg(TRACE, "Enter\n");
-	brcmf_dbg(TRACE, "sdio vendor ID: 0x%04x\n", func->vendor);
-	brcmf_dbg(TRACE, "sdio device ID: 0x%04x\n", func->device);
-	brcmf_dbg(TRACE, "Function: %d\n", func->num);
+	brcmf_dbg(SDIO, "Enter\n");
+	brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor);
+	brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device);
+	brcmf_dbg(SDIO, "Function: %d\n", func->num);
 
 	if (func->num != 1 && func->num != 2)
 		return;
@@ -543,7 +513,7 @@ static void brcmf_ops_sdio_remove(struct sdio_func *func)
 		kfree(sdiodev);
 	}
 
-	brcmf_dbg(TRACE, "Exit\n");
+	brcmf_dbg(SDIO, "Exit\n");
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -554,7 +524,7 @@ static int brcmf_sdio_suspend(struct device *dev)
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 	int ret = 0;
 
-	brcmf_dbg(TRACE, "\n");
+	brcmf_dbg(SDIO, "\n");
 
 	atomic_set(&sdiodev->suspend, true);
 
@@ -594,7 +564,7 @@ static const struct dev_pm_ops brcmf_sdio_pm_ops = {
 static struct sdio_driver brcmf_sdmmc_driver = {
 	.probe = brcmf_ops_sdio_probe,
 	.remove = brcmf_ops_sdio_remove,
-	.name = "brcmfmac",
+	.name = BRCMFMAC_SDIO_PDATA_NAME,
 	.id_table = brcmf_sdmmc_ids,
 #ifdef CONFIG_PM_SLEEP
 	.drv = {
@@ -603,83 +573,65 @@ static struct sdio_driver brcmf_sdmmc_driver = {
 #endif	/* CONFIG_PM_SLEEP */
 };
 
-#ifdef CONFIG_BRCMFMAC_SDIO_OOB
 static int brcmf_sdio_pd_probe(struct platform_device *pdev)
 {
-	struct resource *res;
-	struct brcmf_sdio_oobirq *oobirq_entry;
-	int i, ret;
+	int ret;
 
-	INIT_LIST_HEAD(&oobirq_lh);
+	brcmf_dbg(SDIO, "Enter\n");
 
-	for (i = 0; ; i++) {
-		res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
-		if (!res)
-			break;
+	brcmfmac_sdio_pdata = pdev->dev.platform_data;
 
-		oobirq_entry = kzalloc(sizeof(struct brcmf_sdio_oobirq),
-				       GFP_KERNEL);
-		if (!oobirq_entry)
-			return -ENOMEM;
-		oobirq_entry->irq = res->start;
-		oobirq_entry->flags = res->flags & IRQF_TRIGGER_MASK;
-		list_add_tail(&oobirq_entry->list, &oobirq_lh);
-	}
-	if (i == 0)
-		return -ENXIO;
+	if (brcmfmac_sdio_pdata->power_on)
+		brcmfmac_sdio_pdata->power_on();
 
 	ret = sdio_register_driver(&brcmf_sdmmc_driver);
-
 	if (ret)
 		brcmf_err("sdio_register_driver failed: %d\n", ret);
 
 	return ret;
 }
 
-static struct platform_driver brcmf_sdio_pd = {
-	.probe		= brcmf_sdio_pd_probe,
-	.driver		= {
-		.name	= "brcmf_sdio_pd"
-	}
-};
-
-void brcmf_sdio_exit(void)
+static int brcmf_sdio_pd_remove(struct platform_device *pdev)
 {
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
+
+	if (brcmfmac_sdio_pdata->power_off)
+		brcmfmac_sdio_pdata->power_off();
 
 	sdio_unregister_driver(&brcmf_sdmmc_driver);
 
-	platform_driver_unregister(&brcmf_sdio_pd);
+	return 0;
 }
 
-void brcmf_sdio_init(void)
-{
-	int ret;
-
-	brcmf_dbg(TRACE, "Enter\n");
-
-	ret = platform_driver_register(&brcmf_sdio_pd);
+static struct platform_driver brcmf_sdio_pd = {
+	.remove		= brcmf_sdio_pd_remove,
+	.driver		= {
+		.name	= BRCMFMAC_SDIO_PDATA_NAME
+	}
+};
 
-	if (ret)
-		brcmf_err("platform_driver_register failed: %d\n", ret);
-}
-#else
 void brcmf_sdio_exit(void)
 {
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
-	sdio_unregister_driver(&brcmf_sdmmc_driver);
+	if (brcmfmac_sdio_pdata)
+		platform_driver_unregister(&brcmf_sdio_pd);
+	else
+		sdio_unregister_driver(&brcmf_sdmmc_driver);
 }
 
 void brcmf_sdio_init(void)
 {
 	int ret;
 
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
-	ret = sdio_register_driver(&brcmf_sdmmc_driver);
+	ret = platform_driver_probe(&brcmf_sdio_pd, brcmf_sdio_pd_probe);
+	if (ret == -ENODEV) {
+		brcmf_dbg(SDIO, "No platform data available, registering without.\n");
+		ret = sdio_register_driver(&brcmf_sdmmc_driver);
+	}
 
 	if (ret)
-		brcmf_err("sdio_register_driver failed: %d\n", ret);
+		brcmf_err("driver registration failed: %d\n", ret);
 }
-#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/btcoex.c b/drivers/net/wireless/brcm80211/brcmfmac/btcoex.c
new file mode 100644
index 000000000000..0cb591b050b3
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/btcoex.c
@@ -0,0 +1,497 @@
+/*
+ * Copyright (c) 2013 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <linux/slab.h>
+#include <linux/netdevice.h>
+#include <net/cfg80211.h>
+
+#include <brcmu_wifi.h>
+#include <brcmu_utils.h>
+#include <defs.h>
+#include <dhd.h>
+#include <dhd_dbg.h>
+#include "fwil.h"
+#include "fwil_types.h"
+#include "btcoex.h"
+#include "p2p.h"
+#include "wl_cfg80211.h"
+
+/* T1 start SCO/eSCO priority suppression */
+#define BRCMF_BTCOEX_OPPR_WIN_TIME   2000
+
+/* BT registers values during DHCP */
+#define BRCMF_BT_DHCP_REG50 0x8022
+#define BRCMF_BT_DHCP_REG51 0
+#define BRCMF_BT_DHCP_REG64 0
+#define BRCMF_BT_DHCP_REG65 0
+#define BRCMF_BT_DHCP_REG71 0
+#define BRCMF_BT_DHCP_REG66 0x2710
+#define BRCMF_BT_DHCP_REG41 0x33
+#define BRCMF_BT_DHCP_REG68 0x190
+
+/* number of samples for SCO detection */
+#define BRCMF_BT_SCO_SAMPLES 12
+
+/**
+* enum brcmf_btcoex_state - BT coex DHCP state machine states
+* @BRCMF_BT_DHCP_IDLE: DCHP is idle
+* @BRCMF_BT_DHCP_START: DHCP started, wait before
+*	boosting wifi priority
+* @BRCMF_BT_DHCP_OPPR_WIN: graceful DHCP opportunity ended,
+*	boost wifi priority
+* @BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT: wifi priority boost end,
+*	restore defaults
+*/
+enum brcmf_btcoex_state {
+	BRCMF_BT_DHCP_IDLE,
+	BRCMF_BT_DHCP_START,
+	BRCMF_BT_DHCP_OPPR_WIN,
+	BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT
+};
+
+/**
+ * struct brcmf_btcoex_info - BT coex related information
+ * @vif: interface for which request was done.
+ * @timer: timer for DHCP state machine
+ * @timeout: configured timeout.
+ * @timer_on:  DHCP timer active
+ * @dhcp_done: DHCP finished before T1/T2 timer expiration
+ * @bt_state: DHCP state machine state
+ * @work: DHCP state machine work
+ * @cfg: driver private data for cfg80211 interface
+ * @reg66: saved value of btc_params 66
+ * @reg41: saved value of btc_params 41
+ * @reg68: saved value of btc_params 68
+ * @saved_regs_part1: flag indicating regs 66,41,68
+ *	have been saved
+ * @reg51: saved value of btc_params 51
+ * @reg64: saved value of btc_params 64
+ * @reg65: saved value of btc_params 65
+ * @reg71: saved value of btc_params 71
+ * @saved_regs_part1: flag indicating regs 50,51,64,65,71
+ *	have been saved
+ */
+struct brcmf_btcoex_info {
+	struct brcmf_cfg80211_vif *vif;
+	struct timer_list timer;
+	u16 timeout;
+	bool timer_on;
+	bool dhcp_done;
+	enum brcmf_btcoex_state bt_state;
+	struct work_struct work;
+	struct brcmf_cfg80211_info *cfg;
+	u32 reg66;
+	u32 reg41;
+	u32 reg68;
+	bool saved_regs_part1;
+	u32 reg50;
+	u32 reg51;
+	u32 reg64;
+	u32 reg65;
+	u32 reg71;
+	bool saved_regs_part2;
+};
+
+/**
+ * brcmf_btcoex_params_write() - write btc_params firmware variable
+ * @ifp: interface
+ * @addr: btc_params register number
+ * @data: data to write
+ */
+static s32 brcmf_btcoex_params_write(struct brcmf_if *ifp, u32 addr, u32 data)
+{
+	struct {
+		__le32 addr;
+		__le32 data;
+	} reg_write;
+
+	reg_write.addr = cpu_to_le32(addr);
+	reg_write.data = cpu_to_le32(data);
+	return brcmf_fil_iovar_data_set(ifp, "btc_params",
+					&reg_write, sizeof(reg_write));
+}
+
+/**
+ * brcmf_btcoex_params_read() - read btc_params firmware variable
+ * @ifp: interface
+ * @addr: btc_params register number
+ * @data: read data
+ */
+static s32 brcmf_btcoex_params_read(struct brcmf_if *ifp, u32 addr, u32 *data)
+{
+	*data = addr;
+
+	return brcmf_fil_iovar_int_get(ifp, "btc_params", data);
+}
+
+/**
+ * brcmf_btcoex_boost_wifi() - control BT SCO/eSCO parameters
+ * @btci: BT coex info
+ * @trump_sco:
+ *	true - set SCO/eSCO parameters for compatibility
+ *		during DHCP window
+ *	false - restore saved parameter values
+ *
+ * Enhanced BT COEX settings for eSCO compatibility during DHCP window
+ */
+static void brcmf_btcoex_boost_wifi(struct brcmf_btcoex_info *btci,
+				    bool trump_sco)
+{
+	struct brcmf_if *ifp = btci->cfg->pub->iflist[0];
+
+	if (trump_sco && !btci->saved_regs_part2) {
+		/* this should reduce eSCO agressive
+		 * retransmit w/o breaking it
+		 */
+
+		/* save current */
+		brcmf_dbg(TRACE, "new SCO/eSCO coex algo {save & override}\n");
+		brcmf_btcoex_params_read(ifp, 50, &btci->reg50);
+		brcmf_btcoex_params_read(ifp, 51, &btci->reg51);
+		brcmf_btcoex_params_read(ifp, 64, &btci->reg64);
+		brcmf_btcoex_params_read(ifp, 65, &btci->reg65);
+		brcmf_btcoex_params_read(ifp, 71, &btci->reg71);
+
+		btci->saved_regs_part2 = true;
+		brcmf_dbg(TRACE,
+			  "saved bt_params[50,51,64,65,71]: 0x%x 0x%x 0x%x 0x%x 0x%x\n",
+			  btci->reg50, btci->reg51, btci->reg64,
+			  btci->reg65, btci->reg71);
+
+		/* pacify the eSco   */
+		brcmf_btcoex_params_write(ifp, 50, BRCMF_BT_DHCP_REG50);
+		brcmf_btcoex_params_write(ifp, 51, BRCMF_BT_DHCP_REG51);
+		brcmf_btcoex_params_write(ifp, 64, BRCMF_BT_DHCP_REG64);
+		brcmf_btcoex_params_write(ifp, 65, BRCMF_BT_DHCP_REG65);
+		brcmf_btcoex_params_write(ifp, 71, BRCMF_BT_DHCP_REG71);
+
+	} else if (btci->saved_regs_part2) {
+		/* restore previously saved bt params */
+		brcmf_dbg(TRACE, "Do new SCO/eSCO coex algo {restore}\n");
+		brcmf_btcoex_params_write(ifp, 50, btci->reg50);
+		brcmf_btcoex_params_write(ifp, 51, btci->reg51);
+		brcmf_btcoex_params_write(ifp, 64, btci->reg64);
+		brcmf_btcoex_params_write(ifp, 65, btci->reg65);
+		brcmf_btcoex_params_write(ifp, 71, btci->reg71);
+
+		brcmf_dbg(TRACE,
+			  "restored bt_params[50,51,64,65,71]: 0x%x 0x%x 0x%x 0x%x 0x%x\n",
+			  btci->reg50, btci->reg51, btci->reg64,
+			  btci->reg65, btci->reg71);
+
+		btci->saved_regs_part2 = false;
+	} else {
+		brcmf_err("attempted to restore not saved BTCOEX params\n");
+	}
+}
+
+/**
+ * brcmf_btcoex_is_sco_active() - check if SCO/eSCO is active
+ * @ifp: interface
+ *
+ * return: true if SCO/eSCO session is active
+ */
+static bool brcmf_btcoex_is_sco_active(struct brcmf_if *ifp)
+{
+	int ioc_res = 0;
+	bool res = false;
+	int sco_id_cnt = 0;
+	u32 param27;
+	int i;
+
+	for (i = 0; i < BRCMF_BT_SCO_SAMPLES; i++) {
+		ioc_res = brcmf_btcoex_params_read(ifp, 27, &param27);
+
+		if (ioc_res < 0) {
+			brcmf_err("ioc read btc params error\n");
+			break;
+		}
+
+		brcmf_dbg(TRACE, "sample[%d], btc_params 27:%x\n", i, param27);
+
+		if ((param27 & 0x6) == 2) { /* count both sco & esco  */
+			sco_id_cnt++;
+		}
+
+		if (sco_id_cnt > 2) {
+			brcmf_dbg(TRACE,
+				  "sco/esco detected, pkt id_cnt:%d samples:%d\n",
+				  sco_id_cnt, i);
+			res = true;
+			break;
+		}
+	}
+	brcmf_dbg(TRACE, "exit: result=%d\n", res);
+	return res;
+}
+
+/**
+ * btcmf_btcoex_save_part1() - save first step parameters.
+ */
+static void btcmf_btcoex_save_part1(struct brcmf_btcoex_info *btci)
+{
+	struct brcmf_if *ifp = btci->vif->ifp;
+
+	if (!btci->saved_regs_part1) {
+		/* Retrieve and save original reg value */
+		brcmf_btcoex_params_read(ifp, 66, &btci->reg66);
+		brcmf_btcoex_params_read(ifp, 41, &btci->reg41);
+		brcmf_btcoex_params_read(ifp, 68, &btci->reg68);
+		btci->saved_regs_part1 = true;
+		brcmf_dbg(TRACE,
+			  "saved btc_params regs (66,41,68) 0x%x 0x%x 0x%x\n",
+			  btci->reg66, btci->reg41,
+			  btci->reg68);
+	}
+}
+
+/**
+ * brcmf_btcoex_restore_part1() - restore first step parameters.
+ */
+static void brcmf_btcoex_restore_part1(struct brcmf_btcoex_info *btci)
+{
+	struct brcmf_if *ifp;
+
+	if (btci->saved_regs_part1) {
+		btci->saved_regs_part1 = false;
+		ifp = btci->vif->ifp;
+		brcmf_btcoex_params_write(ifp, 66, btci->reg66);
+		brcmf_btcoex_params_write(ifp, 41, btci->reg41);
+		brcmf_btcoex_params_write(ifp, 68, btci->reg68);
+		brcmf_dbg(TRACE,
+			  "restored btc_params regs {66,41,68} 0x%x 0x%x 0x%x\n",
+			  btci->reg66, btci->reg41,
+			  btci->reg68);
+	}
+}
+
+/**
+ * brcmf_btcoex_timerfunc() - BT coex timer callback
+ */
+static void brcmf_btcoex_timerfunc(ulong data)
+{
+	struct brcmf_btcoex_info *bt_local = (struct brcmf_btcoex_info *)data;
+	brcmf_dbg(TRACE, "enter\n");
+
+	bt_local->timer_on = false;
+	schedule_work(&bt_local->work);
+}
+
+/**
+ * brcmf_btcoex_handler() - BT coex state machine work handler
+ * @work: work
+ */
+static void brcmf_btcoex_handler(struct work_struct *work)
+{
+	struct brcmf_btcoex_info *btci;
+	btci = container_of(work, struct brcmf_btcoex_info, work);
+	if (btci->timer_on) {
+		btci->timer_on = false;
+		del_timer_sync(&btci->timer);
+	}
+
+	switch (btci->bt_state) {
+	case BRCMF_BT_DHCP_START:
+		/* DHCP started provide OPPORTUNITY window
+		   to get DHCP address
+		*/
+		brcmf_dbg(TRACE, "DHCP started\n");
+		btci->bt_state = BRCMF_BT_DHCP_OPPR_WIN;
+		if (btci->timeout < BRCMF_BTCOEX_OPPR_WIN_TIME) {
+			mod_timer(&btci->timer, btci->timer.expires);
+		} else {
+			btci->timeout -= BRCMF_BTCOEX_OPPR_WIN_TIME;
+			mod_timer(&btci->timer,
+				  jiffies +
+				  msecs_to_jiffies(BRCMF_BTCOEX_OPPR_WIN_TIME));
+		}
+		btci->timer_on = true;
+		break;
+
+	case BRCMF_BT_DHCP_OPPR_WIN:
+		if (btci->dhcp_done) {
+			brcmf_dbg(TRACE, "DHCP done before T1 expiration\n");
+			goto idle;
+		}
+
+		/* DHCP is not over yet, start lowering BT priority */
+		brcmf_dbg(TRACE, "DHCP T1:%d expired\n",
+			  BRCMF_BTCOEX_OPPR_WIN_TIME);
+		brcmf_btcoex_boost_wifi(btci, true);
+
+		btci->bt_state = BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT;
+		mod_timer(&btci->timer,
+			  jiffies + msecs_to_jiffies(btci->timeout));
+		btci->timer_on = true;
+		break;
+
+	case BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT:
+		if (btci->dhcp_done)
+			brcmf_dbg(TRACE, "DHCP done before T2 expiration\n");
+		else
+			brcmf_dbg(TRACE, "DHCP T2:%d expired\n",
+				  BRCMF_BT_DHCP_FLAG_FORCE_TIMEOUT);
+
+		goto idle;
+
+	default:
+		brcmf_err("invalid state=%d !!!\n", btci->bt_state);
+		goto idle;
+	}
+
+	return;
+
+idle:
+	btci->bt_state = BRCMF_BT_DHCP_IDLE;
+	btci->timer_on = false;
+	brcmf_btcoex_boost_wifi(btci, false);
+	cfg80211_crit_proto_stopped(&btci->vif->wdev, GFP_KERNEL);
+	brcmf_btcoex_restore_part1(btci);
+	btci->vif = NULL;
+}
+
+/**
+ * brcmf_btcoex_attach() - initialize BT coex data
+ * @cfg: driver private cfg80211 data
+ *
+ * return: 0 on success
+ */
+int brcmf_btcoex_attach(struct brcmf_cfg80211_info *cfg)
+{
+	struct brcmf_btcoex_info *btci = NULL;
+	brcmf_dbg(TRACE, "enter\n");
+
+	btci = kmalloc(sizeof(struct brcmf_btcoex_info), GFP_KERNEL);
+	if (!btci)
+		return -ENOMEM;
+
+	btci->bt_state = BRCMF_BT_DHCP_IDLE;
+
+	/* Set up timer for BT  */
+	btci->timer_on = false;
+	btci->timeout = BRCMF_BTCOEX_OPPR_WIN_TIME;
+	init_timer(&btci->timer);
+	btci->timer.data = (ulong)btci;
+	btci->timer.function = brcmf_btcoex_timerfunc;
+	btci->cfg = cfg;
+	btci->saved_regs_part1 = false;
+	btci->saved_regs_part2 = false;
+
+	INIT_WORK(&btci->work, brcmf_btcoex_handler);
+
+	cfg->btcoex = btci;
+	return 0;
+}
+
+/**
+ * brcmf_btcoex_detach - clean BT coex data
+ * @cfg: driver private cfg80211 data
+ */
+void brcmf_btcoex_detach(struct brcmf_cfg80211_info *cfg)
+{
+	brcmf_dbg(TRACE, "enter\n");
+
+	if (!cfg->btcoex)
+		return;
+
+	if (cfg->btcoex->timer_on) {
+		cfg->btcoex->timer_on = false;
+		del_timer_sync(&cfg->btcoex->timer);
+	}
+
+	cancel_work_sync(&cfg->btcoex->work);
+
+	brcmf_btcoex_boost_wifi(cfg->btcoex, false);
+	brcmf_btcoex_restore_part1(cfg->btcoex);
+
+	kfree(cfg->btcoex);
+	cfg->btcoex = NULL;
+}
+
+static void brcmf_btcoex_dhcp_start(struct brcmf_btcoex_info *btci)
+{
+	struct brcmf_if *ifp = btci->vif->ifp;
+
+	btcmf_btcoex_save_part1(btci);
+	/* set new regs values */
+	brcmf_btcoex_params_write(ifp, 66, BRCMF_BT_DHCP_REG66);
+	brcmf_btcoex_params_write(ifp, 41, BRCMF_BT_DHCP_REG41);
+	brcmf_btcoex_params_write(ifp, 68, BRCMF_BT_DHCP_REG68);
+	btci->dhcp_done = false;
+	btci->bt_state = BRCMF_BT_DHCP_START;
+	schedule_work(&btci->work);
+	brcmf_dbg(TRACE, "enable BT DHCP Timer\n");
+}
+
+static void brcmf_btcoex_dhcp_end(struct brcmf_btcoex_info *btci)
+{
+	/* Stop any bt timer because DHCP session is done */
+	btci->dhcp_done = true;
+	if (btci->timer_on) {
+		brcmf_dbg(TRACE, "disable BT DHCP Timer\n");
+		btci->timer_on = false;
+		del_timer_sync(&btci->timer);
+
+		/* schedule worker if transition to IDLE is needed */
+		if (btci->bt_state != BRCMF_BT_DHCP_IDLE) {
+			brcmf_dbg(TRACE, "bt_state:%d\n",
+				  btci->bt_state);
+			schedule_work(&btci->work);
+		}
+	} else {
+		/* Restore original values */
+		brcmf_btcoex_restore_part1(btci);
+	}
+}
+
+/**
+ * brcmf_btcoex_set_mode - set BT coex mode
+ * @cfg: driver private cfg80211 data
+ * @mode: Wifi-Bluetooth coexistence mode
+ *
+ * return: 0 on success
+ */
+int brcmf_btcoex_set_mode(struct brcmf_cfg80211_vif *vif,
+			  enum brcmf_btcoex_mode mode, u16 duration)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_priv(vif->wdev.wiphy);
+	struct brcmf_btcoex_info *btci = cfg->btcoex;
+	struct brcmf_if *ifp = cfg->pub->iflist[0];
+
+	switch (mode) {
+	case BRCMF_BTCOEX_DISABLED:
+		brcmf_dbg(TRACE, "DHCP session starts\n");
+		if (btci->bt_state != BRCMF_BT_DHCP_IDLE)
+			return -EBUSY;
+		/* Start BT timer only for SCO connection */
+		if (brcmf_btcoex_is_sco_active(ifp)) {
+			btci->timeout = duration;
+			btci->vif = vif;
+			brcmf_btcoex_dhcp_start(btci);
+		}
+		break;
+
+	case BRCMF_BTCOEX_ENABLED:
+		brcmf_dbg(TRACE, "DHCP session ends\n");
+		if (btci->bt_state != BRCMF_BT_DHCP_IDLE &&
+		    vif == btci->vif) {
+			brcmf_btcoex_dhcp_end(btci);
+		}
+		break;
+	default:
+		brcmf_dbg(TRACE, "Unknown mode, ignored\n");
+	}
+	return 0;
+}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/btcoex.h b/drivers/net/wireless/brcm80211/brcmfmac/btcoex.h
new file mode 100644
index 000000000000..19647c68aa9e
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/btcoex.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2013 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifndef WL_BTCOEX_H_
+#define WL_BTCOEX_H_
+
+enum brcmf_btcoex_mode {
+	BRCMF_BTCOEX_DISABLED,
+	BRCMF_BTCOEX_ENABLED
+};
+
+int brcmf_btcoex_attach(struct brcmf_cfg80211_info *cfg);
+void brcmf_btcoex_detach(struct brcmf_cfg80211_info *cfg);
+int brcmf_btcoex_set_mode(struct brcmf_cfg80211_vif *vif,
+			  enum brcmf_btcoex_mode mode, u16 duration);
+
+#endif /* WL_BTCOEX_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
index ef6f23be6d32..28db9cf39672 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
@@ -28,6 +28,7 @@
 /*******************************************************************************
  * IO codes that are interpreted by dongle firmware
  ******************************************************************************/
+#define BRCMF_C_GET_VERSION			1
 #define BRCMF_C_UP				2
 #define BRCMF_C_DOWN				3
 #define BRCMF_C_SET_PROMISC			10
@@ -72,6 +73,7 @@
 #define BRCMF_C_SET_WSEC			134
 #define BRCMF_C_GET_PHY_NOISE			135
 #define BRCMF_C_GET_BSS_INFO			136
+#define BRCMF_C_GET_BANDLIST			140
 #define BRCMF_C_SET_SCB_TIMEOUT			158
 #define BRCMF_C_GET_PHYLIST			180
 #define BRCMF_C_SET_SCAN_CHANNEL_TIME		185
@@ -475,6 +477,11 @@ struct brcmf_sta_info_le {
 	__le32	rx_decrypt_failures;	/* # of packet decrypted failed */
 };
 
+struct brcmf_chanspec_list {
+	__le32	count;		/* # of entries */
+	__le32	element[1];	/* variable length uint32 list */
+};
+
 /*
  * WLC_E_PROBRESP_MSG
  * WLC_E_P2P_PROBREQ_MSG
@@ -501,6 +508,7 @@ struct brcmf_dcmd {
 /* Forward decls for struct brcmf_pub (see below) */
 struct brcmf_proto;	/* device communication protocol info */
 struct brcmf_cfg80211_dev; /* cfg80211 device info */
+struct brcmf_fws_info; /* firmware signalling info */
 
 /* Common structure for module and instance linkage */
 struct brcmf_pub {
@@ -527,6 +535,10 @@ struct brcmf_pub {
 	unsigned char proto_buf[BRCMF_DCMD_MAXLEN];
 
 	struct brcmf_fweh_info fweh;
+
+	bool fw_signals;
+	struct brcmf_fws_info *fws;
+	spinlock_t fws_spinlock;
 #ifdef DEBUG
 	struct dentry *dbgfs_dir;
 #endif
@@ -537,10 +549,25 @@ struct brcmf_if_event {
 	u8 action;
 	u8 flags;
 	u8 bssidx;
+	u8 role;
 };
 
-/* forward declaration */
+/* forward declarations */
 struct brcmf_cfg80211_vif;
+struct brcmf_fws_mac_descriptor;
+
+/**
+ * enum brcmf_netif_stop_reason - reason for stopping netif queue.
+ *
+ * @BRCMF_NETIF_STOP_REASON_FWS_FC:
+ *	netif stopped due to firmware signalling flow control.
+ * @BRCMF_NETIF_STOP_REASON_BLOCK_BUS:
+ *	netif stopped due to bus blocking.
+ */
+enum brcmf_netif_stop_reason {
+	BRCMF_NETIF_STOP_REASON_FWS_FC = 1,
+	BRCMF_NETIF_STOP_REASON_BLOCK_BUS = 2
+};
 
 /**
  * struct brcmf_if - interface control information.
@@ -549,9 +576,13 @@ struct brcmf_cfg80211_vif;
  * @vif: points to cfg80211 specific interface information.
  * @ndev: associated network device.
  * @stats: interface specific network statistics.
+ * @setmacaddr_work: worker object for setting mac address.
+ * @multicast_work: worker object for multicast provisioning.
+ * @fws_desc: interface specific firmware-signalling descriptor.
  * @ifidx: interface index in device firmware.
  * @bssidx: index of bss associated with this interface.
  * @mac_addr: assigned mac address.
+ * @netif_stop: bitmap indicates reason why netif queues are stopped.
  * @pend_8021x_cnt: tracks outstanding number of 802.1x frames.
  * @pend_8021x_wait: used for signalling change in count.
  */
@@ -562,9 +593,11 @@ struct brcmf_if {
 	struct net_device_stats stats;
 	struct work_struct setmacaddr_work;
 	struct work_struct multicast_work;
+	struct brcmf_fws_mac_descriptor *fws_desc;
 	int ifidx;
 	s32 bssidx;
 	u8 mac_addr[ETH_ALEN];
+	u8 netif_stop;
 	atomic_t pend_8021x_cnt;
 	wait_queue_head_t pend_8021x_wait;
 };
@@ -582,13 +615,17 @@ extern int brcmf_proto_cdc_set_dcmd(struct brcmf_pub *drvr, int ifidx, uint cmd,
 				    void *buf, uint len);
 
 /* Remove any protocol-specific data header. */
-extern int brcmf_proto_hdrpull(struct brcmf_pub *drvr, u8 *ifidx,
+extern int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
 			       struct sk_buff *rxp);
 
 extern int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
 extern struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx,
 				     s32 ifidx, char *name, u8 *mac_addr);
 extern void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx);
+void brcmf_txflowblock_if(struct brcmf_if *ifp,
+			  enum brcmf_netif_stop_reason reason, bool state);
 extern u32 brcmf_get_chip_info(struct brcmf_if *ifp);
+extern void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
+			     bool success);
 
 #endif				/* _BRCMF_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
index ad25c3408b59..080395f49fa5 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
@@ -39,10 +39,12 @@ struct brcmf_bus_dcmd {
  * @txdata: send a data frame to the dongle (callee disposes skb).
  * @txctl: transmit a control request message to dongle.
  * @rxctl: receive a control response message from dongle.
+ * @gettxq: obtain a reference of bus transmit queue (optional).
  *
  * This structure provides an abstract interface towards the
  * bus specific driver. For control messages to common driver
- * will assure there is only one active transaction.
+ * will assure there is only one active transaction. Unless
+ * indicated otherwise these callbacks are mandatory.
  */
 struct brcmf_bus_ops {
 	int (*init)(struct device *dev);
@@ -50,6 +52,7 @@ struct brcmf_bus_ops {
 	int (*txdata)(struct device *dev, struct sk_buff *skb);
 	int (*txctl)(struct device *dev, unsigned char *msg, uint len);
 	int (*rxctl)(struct device *dev, unsigned char *msg, uint len);
+	struct pktq * (*gettxq)(struct device *dev);
 };
 
 /**
@@ -115,6 +118,14 @@ int brcmf_bus_rxctl(struct brcmf_bus *bus, unsigned char *msg, uint len)
 	return bus->ops->rxctl(bus->dev, msg, len);
 }
 
+static inline
+struct pktq *brcmf_bus_gettxq(struct brcmf_bus *bus)
+{
+	if (!bus->ops->gettxq)
+		return ERR_PTR(-ENOENT);
+
+	return bus->ops->gettxq(bus->dev);
+}
 /*
  * interface functions from common layer
  */
@@ -134,7 +145,7 @@ extern void brcmf_dev_reset(struct device *dev);
 /* Indication from bus module to change flow-control state */
 extern void brcmf_txflowblock(struct device *dev, bool state);
 
-/* Notify tx completion */
+/* Notify the bus has transferred the tx packet to firmware */
 extern void brcmf_txcomplete(struct device *dev, struct sk_buff *txp,
 			     bool success);
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
index a2354d951dd7..59c77aa3b959 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
@@ -28,6 +28,7 @@
 #include "dhd.h"
 #include "dhd_proto.h"
 #include "dhd_bus.h"
+#include "fwsignal.h"
 #include "dhd_dbg.h"
 
 struct brcmf_proto_cdc_dcmd {
@@ -71,13 +72,26 @@ struct brcmf_proto_cdc_dcmd {
 	((hdr)->flags2 = (((hdr)->flags2 & ~BDC_FLAG2_IF_MASK) | \
 	((idx) << BDC_FLAG2_IF_SHIFT)))
 
+/**
+ * struct brcmf_proto_bdc_header - BDC header format
+ *
+ * @flags: flags contain protocol and checksum info.
+ * @priority: 802.1d priority and USB flow control info (bit 4:7).
+ * @flags2: additional flags containing dongle interface index.
+ * @data_offset: start of packet data. header is following by firmware signals.
+ */
 struct brcmf_proto_bdc_header {
 	u8 flags;
-	u8 priority;	/* 802.1d Priority, 4:7 flow control info for usb */
+	u8 priority;
 	u8 flags2;
 	u8 data_offset;
 };
 
+/*
+ * maximum length of firmware signal data between
+ * the BDC header and packet data in the tx path.
+ */
+#define BRCMF_PROT_FW_SIGNAL_MAX_TXBYTES	12
 
 #define RETRIES 2 /* # of retries to retrieve matching dcmd response */
 #define BUS_HEADER_LEN	(16+64)		/* Must be atleast SDPCM_RESERVE
@@ -258,7 +272,7 @@ static void pkt_set_sum_good(struct sk_buff *skb, bool x)
 	skb->ip_summed = (x ? CHECKSUM_UNNECESSARY : CHECKSUM_NONE);
 }
 
-void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx,
+void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx, u8 offset,
 			 struct sk_buff *pktbuf)
 {
 	struct brcmf_proto_bdc_header *h;
@@ -266,7 +280,6 @@ void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx,
 	brcmf_dbg(CDC, "Enter\n");
 
 	/* Push BDC header used to convey priority for buses that don't */
-
 	skb_push(pktbuf, BDC_HEADER_LEN);
 
 	h = (struct brcmf_proto_bdc_header *)(pktbuf->data);
@@ -277,11 +290,11 @@ void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx,
 
 	h->priority = (pktbuf->priority & BDC_PRIORITY_MASK);
 	h->flags2 = 0;
-	h->data_offset = 0;
+	h->data_offset = offset;
 	BDC_SET_IF_IDX(h, ifidx);
 }
 
-int brcmf_proto_hdrpull(struct brcmf_pub *drvr, u8 *ifidx,
+int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
 			struct sk_buff *pktbuf)
 {
 	struct brcmf_proto_bdc_header *h;
@@ -290,8 +303,8 @@ int brcmf_proto_hdrpull(struct brcmf_pub *drvr, u8 *ifidx,
 
 	/* Pop BDC header used to convey priority for buses that don't */
 
-	if (pktbuf->len < BDC_HEADER_LEN) {
-		brcmf_err("rx data too short (%d < %d)\n",
+	if (pktbuf->len <= BDC_HEADER_LEN) {
+		brcmf_dbg(INFO, "rx data too short (%d <= %d)\n",
 			  pktbuf->len, BDC_HEADER_LEN);
 		return -EBADE;
 	}
@@ -328,7 +341,10 @@ int brcmf_proto_hdrpull(struct brcmf_pub *drvr, u8 *ifidx,
 	pktbuf->priority = h->priority & BDC_PRIORITY_MASK;
 
 	skb_pull(pktbuf, BDC_HEADER_LEN);
-	skb_pull(pktbuf, h->data_offset << 2);
+	if (do_fws)
+		brcmf_fws_hdrpull(drvr, *ifidx, h->data_offset << 2, pktbuf);
+	else
+		skb_pull(pktbuf, h->data_offset << 2);
 
 	if (pktbuf->len == 0)
 		return -ENODATA;
@@ -350,7 +366,7 @@ int brcmf_proto_attach(struct brcmf_pub *drvr)
 	}
 
 	drvr->prot = cdc;
-	drvr->hdrlen += BDC_HEADER_LEN;
+	drvr->hdrlen += BDC_HEADER_LEN + BRCMF_PROT_FW_SIGNAL_MAX_TXBYTES;
 	drvr->bus_if->maxctl = BRCMF_DCMD_MAXLEN +
 			sizeof(struct brcmf_proto_cdc_dcmd) + ROUND_UP_MARGIN;
 	return 0;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
index 4544342a0428..be0787cab24f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
@@ -24,6 +24,7 @@
 #include "dhd_proto.h"
 #include "dhd_dbg.h"
 #include "fwil.h"
+#include "tracepoint.h"
 
 #define PKTFILTER_BUF_SIZE		128
 #define BRCMF_ARPOL_MODE		0xb	/* agent|snoop|peer_autoreply */
@@ -373,3 +374,35 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
 done:
 	return err;
 }
+
+#ifdef CONFIG_BRCM_TRACING
+void __brcmf_err(const char *func, const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	pr_err("%s: %pV", func, &vaf);
+	trace_brcmf_err(func, &vaf);
+	va_end(args);
+}
+#endif
+#if defined(CONFIG_BRCM_TRACING) || defined(CONFIG_BRCMDBG)
+void __brcmf_dbg(u32 level, const char *func, const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	if (brcmf_msg_level & level)
+		pr_debug("%s %pV", func, &vaf);
+	trace_brcmf_dbg(level, func, &vaf);
+	va_end(args);
+}
+#endif
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
index 57671eddf79d..202869cd0932 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
@@ -22,6 +22,7 @@
 #include "dhd.h"
 #include "dhd_bus.h"
 #include "dhd_dbg.h"
+#include "tracepoint.h"
 
 static struct dentry *root_folder;
 
@@ -123,3 +124,82 @@ void brcmf_debugfs_create_sdio_count(struct brcmf_pub *drvr,
 		debugfs_create_file("counters", S_IRUGO, dentry,
 				    sdcnt, &brcmf_debugfs_sdio_counter_ops);
 }
+
+static
+ssize_t brcmf_debugfs_fws_stats_read(struct file *f, char __user *data,
+				     size_t count, loff_t *ppos)
+{
+	struct brcmf_fws_stats *fwstats = f->private_data;
+	char buf[650];
+	int res;
+
+	/* only allow read from start */
+	if (*ppos > 0)
+		return 0;
+
+	res = scnprintf(buf, sizeof(buf),
+			"header_pulls:      %u\n"
+			"header_only_pkt:   %u\n"
+			"tlv_parse_failed:  %u\n"
+			"tlv_invalid_type:  %u\n"
+			"mac_update_fails:  %u\n"
+			"ps_update_fails:   %u\n"
+			"if_update_fails:   %u\n"
+			"pkt2bus:           %u\n"
+			"generic_error:     %u\n"
+			"rollback_success:  %u\n"
+			"rollback_failed:   %u\n"
+			"delayq_full:       %u\n"
+			"supprq_full:       %u\n"
+			"txs_indicate:      %u\n"
+			"txs_discard:       %u\n"
+			"txs_suppr_core:    %u\n"
+			"txs_suppr_ps:      %u\n"
+			"txs_tossed:        %u\n"
+			"send_pkts:         BK:%u BE:%u VO:%u VI:%u BCMC:%u\n"
+			"fifo_credits_sent: BK:%u BE:%u VO:%u VI:%u BCMC:%u\n",
+			fwstats->header_pulls,
+			fwstats->header_only_pkt,
+			fwstats->tlv_parse_failed,
+			fwstats->tlv_invalid_type,
+			fwstats->mac_update_failed,
+			fwstats->mac_ps_update_failed,
+			fwstats->if_update_failed,
+			fwstats->pkt2bus,
+			fwstats->generic_error,
+			fwstats->rollback_success,
+			fwstats->rollback_failed,
+			fwstats->delayq_full_error,
+			fwstats->supprq_full_error,
+			fwstats->txs_indicate,
+			fwstats->txs_discard,
+			fwstats->txs_supp_core,
+			fwstats->txs_supp_ps,
+			fwstats->txs_tossed,
+			fwstats->send_pkts[0], fwstats->send_pkts[1],
+			fwstats->send_pkts[2], fwstats->send_pkts[3],
+			fwstats->send_pkts[4],
+			fwstats->fifo_credits_sent[0],
+			fwstats->fifo_credits_sent[1],
+			fwstats->fifo_credits_sent[2],
+			fwstats->fifo_credits_sent[3],
+			fwstats->fifo_credits_sent[4]);
+
+	return simple_read_from_buffer(data, count, ppos, buf, res);
+}
+
+static const struct file_operations brcmf_debugfs_fws_stats_ops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.read = brcmf_debugfs_fws_stats_read
+};
+
+void brcmf_debugfs_create_fws_stats(struct brcmf_pub *drvr,
+				    struct brcmf_fws_stats *stats)
+{
+	struct dentry *dentry =  drvr->dbgfs_dir;
+
+	if (!IS_ERR_OR_NULL(dentry))
+		debugfs_create_file("fws_stats", S_IRUGO, dentry,
+				    stats, &brcmf_debugfs_fws_stats_ops);
+}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
index bc013cbe06f6..009c87bfd9ae 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
@@ -34,6 +34,7 @@
 #define BRCMF_SCAN_VAL	0x00004000
 #define BRCMF_CONN_VAL	0x00008000
 #define BRCMF_CDC_VAL	0x00010000
+#define BRCMF_SDIO_VAL	0x00020000
 
 /* set default print format */
 #undef pr_fmt
@@ -43,6 +44,7 @@
  * debugging is not selected. When debugging the driver error
  * messages are as important as other tracing or even more so.
  */
+#ifndef CONFIG_BRCM_TRACING
 #ifdef CONFIG_BRCMDBG
 #define brcmf_err(fmt, ...)	pr_err("%s: " fmt, __func__, ##__VA_ARGS__)
 #else
@@ -52,15 +54,21 @@
 			pr_err("%s: " fmt, __func__, ##__VA_ARGS__);	\
 	} while (0)
 #endif
+#else
+__printf(2, 3)
+void __brcmf_err(const char *func, const char *fmt, ...);
+#define brcmf_err(fmt, ...) \
+	__brcmf_err(__func__, fmt, ##__VA_ARGS__)
+#endif
 
-#if defined(DEBUG)
-
+#if defined(DEBUG) || defined(CONFIG_BRCM_TRACING)
+__printf(3, 4)
+void __brcmf_dbg(u32 level, const char *func, const char *fmt, ...);
 #define brcmf_dbg(level, fmt, ...)				\
 do {								\
-	if (brcmf_msg_level & BRCMF_##level##_VAL)		\
-		pr_debug("%s: " fmt, __func__, ##__VA_ARGS__);	\
+	__brcmf_dbg(BRCMF_##level##_VAL, __func__,		\
+		    fmt, ##__VA_ARGS__);			\
 } while (0)
-
 #define BRCMF_DATA_ON()		(brcmf_msg_level & BRCMF_DATA_VAL)
 #define BRCMF_CTL_ON()		(brcmf_msg_level & BRCMF_CTL_VAL)
 #define BRCMF_HDRS_ON()		(brcmf_msg_level & BRCMF_HDRS_VAL)
@@ -69,7 +77,7 @@ do {								\
 #define BRCMF_EVENT_ON()	(brcmf_msg_level & BRCMF_EVENT_VAL)
 #define BRCMF_FIL_ON()		(brcmf_msg_level & BRCMF_FIL_VAL)
 
-#else	/* (defined DEBUG) || (defined DEBUG) */
+#else /* defined(DEBUG) || defined(CONFIG_BRCM_TRACING) */
 
 #define brcmf_dbg(level, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
 
@@ -81,10 +89,11 @@ do {								\
 #define BRCMF_EVENT_ON()	0
 #define BRCMF_FIL_ON()		0
 
-#endif				/* defined(DEBUG) */
+#endif /* defined(DEBUG) || defined(CONFIG_BRCM_TRACING) */
 
 #define brcmf_dbg_hex_dump(test, data, len, fmt, ...)			\
 do {									\
+	trace_brcmf_hexdump((void *)data, len);				\
 	if (test)							\
 		brcmu_dbg_hex_dump(data, len, fmt, ##__VA_ARGS__);	\
 } while (0)
@@ -125,6 +134,32 @@ struct brcmf_sdio_count {
 	ulong rx_readahead_cnt;	/* packets where header read-ahead was used */
 };
 
+struct brcmf_fws_stats {
+	u32 tlv_parse_failed;
+	u32 tlv_invalid_type;
+	u32 header_only_pkt;
+	u32 header_pulls;
+	u32 pkt2bus;
+	u32 send_pkts[5];
+	u32 fifo_credits_sent[5];
+	u32 fifo_credits_back[6];
+	u32 generic_error;
+	u32 mac_update_failed;
+	u32 mac_ps_update_failed;
+	u32 if_update_failed;
+	u32 packet_request_failed;
+	u32 credit_request_failed;
+	u32 rollback_success;
+	u32 rollback_failed;
+	u32 delayq_full_error;
+	u32 supprq_full_error;
+	u32 txs_indicate;
+	u32 txs_discard;
+	u32 txs_supp_core;
+	u32 txs_supp_ps;
+	u32 txs_tossed;
+};
+
 struct brcmf_pub;
 #ifdef DEBUG
 void brcmf_debugfs_init(void);
@@ -134,6 +169,8 @@ void brcmf_debugfs_detach(struct brcmf_pub *drvr);
 struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr);
 void brcmf_debugfs_create_sdio_count(struct brcmf_pub *drvr,
 				     struct brcmf_sdio_count *sdcnt);
+void brcmf_debugfs_create_fws_stats(struct brcmf_pub *drvr,
+				    struct brcmf_fws_stats *stats);
 #else
 static inline void brcmf_debugfs_init(void)
 {
@@ -148,6 +185,10 @@ static inline int brcmf_debugfs_attach(struct brcmf_pub *drvr)
 static inline void brcmf_debugfs_detach(struct brcmf_pub *drvr)
 {
 }
+static inline void brcmf_debugfs_create_fws_stats(struct brcmf_pub *drvr,
+						  struct brcmf_fws_stats *stats)
+{
+}
 #endif
 
 #endif				/* _BRCMF_DBG_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index c06cea88df0d..59c25463e428 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -30,17 +30,18 @@
 #include "p2p.h"
 #include "wl_cfg80211.h"
 #include "fwil.h"
+#include "fwsignal.h"
 
 MODULE_AUTHOR("Broadcom Corporation");
 MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
-MODULE_SUPPORTED_DEVICE("Broadcom 802.11 WLAN fullmac cards");
 MODULE_LICENSE("Dual BSD/GPL");
 
 #define MAX_WAIT_FOR_8021X_TX		50	/* msecs */
 
 /* Error bits */
 int brcmf_msg_level;
-module_param(brcmf_msg_level, int, 0);
+module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR);
+MODULE_PARM_DESC(debug, "level of debug output");
 
 /* P2P0 enable */
 static int brcmf_p2p_enable;
@@ -222,18 +223,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 		goto done;
 	}
 
-	/* handle ethernet header */
-	eh = (struct ethhdr *)(skb->data);
-	if (is_multicast_ether_addr(eh->h_dest))
-		drvr->tx_multicast++;
-	if (ntohs(eh->h_proto) == ETH_P_PAE)
-		atomic_inc(&ifp->pend_8021x_cnt);
-
-	/* If the protocol uses a data header, apply it */
-	brcmf_proto_hdrpush(drvr, ifp->ifidx, skb);
-
-	/* Use bus module to send data frame */
-	ret =  brcmf_bus_txdata(drvr->bus_if, skb);
+	ret = brcmf_fws_process_skb(ifp, skb);
 
 done:
 	if (ret) {
@@ -247,9 +237,27 @@ done:
 	return NETDEV_TX_OK;
 }
 
+void brcmf_txflowblock_if(struct brcmf_if *ifp,
+			  enum brcmf_netif_stop_reason reason, bool state)
+{
+	if (!ifp)
+		return;
+
+	brcmf_dbg(TRACE, "enter: idx=%d stop=0x%X reason=%d state=%d\n",
+		  ifp->bssidx, ifp->netif_stop, reason, state);
+	if (state) {
+		if (!ifp->netif_stop)
+			netif_stop_queue(ifp->ndev);
+		ifp->netif_stop |= reason;
+	} else {
+		ifp->netif_stop &= ~reason;
+		if (!ifp->netif_stop)
+			netif_wake_queue(ifp->ndev);
+	}
+}
+
 void brcmf_txflowblock(struct device *dev, bool state)
 {
-	struct net_device *ndev;
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 	struct brcmf_pub *drvr = bus_if->drvr;
 	int i;
@@ -257,13 +265,8 @@ void brcmf_txflowblock(struct device *dev, bool state)
 	brcmf_dbg(TRACE, "Enter\n");
 
 	for (i = 0; i < BRCMF_MAX_IFS; i++)
-		if (drvr->iflist[i]) {
-			ndev = drvr->iflist[i]->ndev;
-			if (state)
-				netif_stop_queue(ndev);
-			else
-				netif_wake_queue(ndev);
-		}
+		brcmf_txflowblock_if(drvr->iflist[i],
+				     BRCMF_NETIF_STOP_REASON_BLOCK_BUS, state);
 }
 
 void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
@@ -283,7 +286,7 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
 		skb_unlink(skb, skb_list);
 
 		/* process and remove protocol-specific header */
-		ret = brcmf_proto_hdrpull(drvr, &ifidx, skb);
+		ret = brcmf_proto_hdrpull(drvr, drvr->fw_signals, &ifidx, skb);
 		ifp = drvr->iflist[ifidx];
 
 		if (ret || !ifp || !ifp->ndev) {
@@ -320,13 +323,8 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
 		/* Strip header, count, deliver upward */
 		skb_pull(skb, ETH_HLEN);
 
-		/* Process special event packets and then discard them */
-		brcmf_fweh_process_skb(drvr, skb, &ifidx);
-
-		if (drvr->iflist[ifidx]) {
-			ifp = drvr->iflist[ifidx];
-			ifp->ndev->last_rx = jiffies;
-		}
+		/* Process special event packets */
+		brcmf_fweh_process_skb(drvr, skb);
 
 		if (!(ifp->ndev->flags & IFF_UP)) {
 			brcmu_pkt_buf_free_skb(skb);
@@ -349,31 +347,49 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
 	}
 }
 
-void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success)
+void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
+		      bool success)
 {
-	u8 ifidx;
+	struct brcmf_if *ifp;
 	struct ethhdr *eh;
+	u8 ifidx;
 	u16 type;
-	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-	struct brcmf_pub *drvr = bus_if->drvr;
-	struct brcmf_if *ifp;
+	int res;
 
-	brcmf_proto_hdrpull(drvr, &ifidx, txp);
+	res = brcmf_proto_hdrpull(drvr, false, &ifidx, txp);
 
 	ifp = drvr->iflist[ifidx];
 	if (!ifp)
-		return;
+		goto done;
 
-	eh = (struct ethhdr *)(txp->data);
-	type = ntohs(eh->h_proto);
+	if (res == 0) {
+		eh = (struct ethhdr *)(txp->data);
+		type = ntohs(eh->h_proto);
 
-	if (type == ETH_P_PAE) {
-		atomic_dec(&ifp->pend_8021x_cnt);
-		if (waitqueue_active(&ifp->pend_8021x_wait))
-			wake_up(&ifp->pend_8021x_wait);
+		if (type == ETH_P_PAE) {
+			atomic_dec(&ifp->pend_8021x_cnt);
+			if (waitqueue_active(&ifp->pend_8021x_wait))
+				wake_up(&ifp->pend_8021x_wait);
+		}
 	}
 	if (!success)
 		ifp->stats.tx_errors++;
+done:
+	brcmu_pkt_buf_free_skb(txp);
+}
+
+void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success)
+{
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+
+	/* await txstatus signal for firmware if active */
+	if (brcmf_fws_fc_active(drvr->fws)) {
+		if (!success)
+			brcmf_fws_bustxfail(drvr->fws, txp);
+	} else {
+		brcmf_txfinalize(drvr, txp, success);
+	}
 }
 
 static struct net_device_stats *brcmf_netdev_get_stats(struct net_device *ndev)
@@ -734,28 +750,35 @@ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
 		}
 	}
 
-	/* Allocate netdev, including space for private structure */
-	ndev = alloc_netdev(sizeof(struct brcmf_if), name, ether_setup);
-	if (!ndev) {
-		brcmf_err("OOM - alloc_netdev\n");
-		return ERR_PTR(-ENOMEM);
+	if (!brcmf_p2p_enable && bssidx == 1) {
+		/* this is P2P_DEVICE interface */
+		brcmf_dbg(INFO, "allocate non-netdev interface\n");
+		ifp = kzalloc(sizeof(*ifp), GFP_KERNEL);
+		if (!ifp)
+			return ERR_PTR(-ENOMEM);
+	} else {
+		brcmf_dbg(INFO, "allocate netdev interface\n");
+		/* Allocate netdev, including space for private structure */
+		ndev = alloc_netdev(sizeof(*ifp), name, ether_setup);
+		if (!ndev)
+			return ERR_PTR(-ENOMEM);
+
+		ifp = netdev_priv(ndev);
+		ifp->ndev = ndev;
 	}
 
-	ifp = netdev_priv(ndev);
-	ifp->ndev = ndev;
 	ifp->drvr = drvr;
 	drvr->iflist[bssidx] = ifp;
 	ifp->ifidx = ifidx;
 	ifp->bssidx = bssidx;
 
-
 	init_waitqueue_head(&ifp->pend_8021x_wait);
 
 	if (mac_addr != NULL)
 		memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
 
 	brcmf_dbg(TRACE, " ==== pid:%x, if:%s (%pM) created ===\n",
-		  current->pid, ifp->ndev->name, ifp->mac_addr);
+		  current->pid, name, ifp->mac_addr);
 
 	return ifp;
 }
@@ -787,11 +810,13 @@ void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx)
 		}
 
 		unregister_netdev(ifp->ndev);
-		drvr->iflist[bssidx] = NULL;
 		if (bssidx == 0)
 			brcmf_cfg80211_detach(drvr->config);
 		free_netdev(ifp->ndev);
+	} else {
+		kfree(ifp);
 	}
+	drvr->iflist[bssidx] = NULL;
 }
 
 int brcmf_attach(uint bus_hdrlen, struct device *dev)
@@ -873,6 +898,13 @@ int brcmf_bus_start(struct device *dev)
 	if (ret < 0)
 		goto fail;
 
+	drvr->fw_signals = true;
+	ret = brcmf_fws_init(drvr);
+	if (ret < 0)
+		goto fail;
+
+	brcmf_fws_add_interface(ifp);
+
 	drvr->config = brcmf_cfg80211_attach(drvr, bus_if->dev);
 	if (drvr->config == NULL) {
 		ret = -ENOMEM;
@@ -889,6 +921,10 @@ fail:
 		brcmf_err("failed: %d\n", ret);
 		if (drvr->config)
 			brcmf_cfg80211_detach(drvr->config);
+		if (drvr->fws) {
+			brcmf_fws_del_interface(ifp);
+			brcmf_fws_deinit(drvr);
+		}
 		free_netdev(ifp->ndev);
 		drvr->iflist[0] = NULL;
 		if (p2p_ifp) {
@@ -944,14 +980,18 @@ void brcmf_detach(struct device *dev)
 
 	/* make sure primary interface removed last */
 	for (i = BRCMF_MAX_IFS-1; i > -1; i--)
-		if (drvr->iflist[i])
+		if (drvr->iflist[i]) {
+			brcmf_fws_del_interface(drvr->iflist[i]);
 			brcmf_del_if(drvr, i);
+		}
 
 	brcmf_bus_detach(drvr);
 
 	if (drvr->prot)
 		brcmf_proto_detach(drvr);
 
+	brcmf_fws_deinit(drvr);
+
 	brcmf_debugfs_detach(drvr);
 	bus_if->drvr = NULL;
 	kfree(drvr);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h
index 48fa70302192..ef9179883748 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h
@@ -33,7 +33,7 @@ extern void brcmf_proto_stop(struct brcmf_pub *drvr);
 /* Add any protocol-specific data header.
  * Caller must reserve prot_hdrlen prepend space.
  */
-extern void brcmf_proto_hdrpush(struct brcmf_pub *, int ifidx,
+extern void brcmf_proto_hdrpush(struct brcmf_pub *, int ifidx, u8 offset,
 				struct sk_buff *txp);
 
 /* Sets dongle media info (drv_version, mac address). */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 35fc68be158d..d2487518bd2a 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -31,6 +31,7 @@
 #include <linux/bcma/bcma.h>
 #include <linux/debugfs.h>
 #include <linux/vmalloc.h>
+#include <linux/platform_data/brcmfmac-sdio.h>
 #include <asm/unaligned.h>
 #include <defs.h>
 #include <brcmu_wifi.h>
@@ -94,6 +95,7 @@ struct rte_console {
 
 #include "dhd_bus.h"
 #include "dhd_dbg.h"
+#include "tracepoint.h"
 
 #define TXQLEN		2048	/* bulk tx queue length */
 #define TXHI		(TXQLEN - 256)	/* turn on flow control above TXHI */
@@ -323,6 +325,9 @@ MODULE_FIRMWARE(BRCMF_SDIO_NV_NAME);
 					 */
 #define BRCMF_IDLE_INTERVAL	1
 
+#define KSO_WAIT_US 50
+#define MAX_KSO_ATTEMPTS (PMU_MAX_TRANSITION_DLY/KSO_WAIT_US)
+
 /*
  * Conversion of 802.1D priority to precedence level
  */
@@ -332,95 +337,6 @@ static uint prio2prec(u32 prio)
 	       (prio^2) : prio;
 }
 
-/* core registers */
-struct sdpcmd_regs {
-	u32 corecontrol;		/* 0x00, rev8 */
-	u32 corestatus;			/* rev8 */
-	u32 PAD[1];
-	u32 biststatus;			/* rev8 */
-
-	/* PCMCIA access */
-	u16 pcmciamesportaladdr;	/* 0x010, rev8 */
-	u16 PAD[1];
-	u16 pcmciamesportalmask;	/* rev8 */
-	u16 PAD[1];
-	u16 pcmciawrframebc;		/* rev8 */
-	u16 PAD[1];
-	u16 pcmciaunderflowtimer;	/* rev8 */
-	u16 PAD[1];
-
-	/* interrupt */
-	u32 intstatus;			/* 0x020, rev8 */
-	u32 hostintmask;		/* rev8 */
-	u32 intmask;			/* rev8 */
-	u32 sbintstatus;		/* rev8 */
-	u32 sbintmask;			/* rev8 */
-	u32 funcintmask;		/* rev4 */
-	u32 PAD[2];
-	u32 tosbmailbox;		/* 0x040, rev8 */
-	u32 tohostmailbox;		/* rev8 */
-	u32 tosbmailboxdata;		/* rev8 */
-	u32 tohostmailboxdata;		/* rev8 */
-
-	/* synchronized access to registers in SDIO clock domain */
-	u32 sdioaccess;			/* 0x050, rev8 */
-	u32 PAD[3];
-
-	/* PCMCIA frame control */
-	u8 pcmciaframectrl;		/* 0x060, rev8 */
-	u8 PAD[3];
-	u8 pcmciawatermark;		/* rev8 */
-	u8 PAD[155];
-
-	/* interrupt batching control */
-	u32 intrcvlazy;			/* 0x100, rev8 */
-	u32 PAD[3];
-
-	/* counters */
-	u32 cmd52rd;			/* 0x110, rev8 */
-	u32 cmd52wr;			/* rev8 */
-	u32 cmd53rd;			/* rev8 */
-	u32 cmd53wr;			/* rev8 */
-	u32 abort;			/* rev8 */
-	u32 datacrcerror;		/* rev8 */
-	u32 rdoutofsync;		/* rev8 */
-	u32 wroutofsync;		/* rev8 */
-	u32 writebusy;			/* rev8 */
-	u32 readwait;			/* rev8 */
-	u32 readterm;			/* rev8 */
-	u32 writeterm;			/* rev8 */
-	u32 PAD[40];
-	u32 clockctlstatus;		/* rev8 */
-	u32 PAD[7];
-
-	u32 PAD[128];			/* DMA engines */
-
-	/* SDIO/PCMCIA CIS region */
-	char cis[512];			/* 0x400-0x5ff, rev6 */
-
-	/* PCMCIA function control registers */
-	char pcmciafcr[256];		/* 0x600-6ff, rev6 */
-	u16 PAD[55];
-
-	/* PCMCIA backplane access */
-	u16 backplanecsr;		/* 0x76E, rev6 */
-	u16 backplaneaddr0;		/* rev6 */
-	u16 backplaneaddr1;		/* rev6 */
-	u16 backplaneaddr2;		/* rev6 */
-	u16 backplaneaddr3;		/* rev6 */
-	u16 backplanedata0;		/* rev6 */
-	u16 backplanedata1;		/* rev6 */
-	u16 backplanedata2;		/* rev6 */
-	u16 backplanedata3;		/* rev6 */
-	u16 PAD[31];
-
-	/* sprom "size" & "blank" info */
-	u16 spromstatus;		/* 0x7BE, rev2 */
-	u32 PAD[464];
-
-	u16 PAD[0x80];
-};
-
 #ifdef DEBUG
 /* Device console log buffer state */
 struct brcmf_console {
@@ -587,12 +503,14 @@ struct brcmf_sdio {
 
 	bool txoff;		/* Transmit flow-controlled */
 	struct brcmf_sdio_count sdcnt;
+	bool sr_enabled; /* SaveRestore enabled */
+	bool sleeping; /* SDIO bus sleeping */
 };
 
 /* clkstate */
 #define CLK_NONE	0
 #define CLK_SDONLY	1
-#define CLK_PENDING	2	/* Not used yet */
+#define CLK_PENDING	2
 #define CLK_AVAIL	3
 
 #ifdef DEBUG
@@ -600,7 +518,7 @@ static int qcount[NUMPRIO];
 static int tx_packets[NUMPRIO];
 #endif				/* DEBUG */
 
-#define SDIO_DRIVE_STRENGTH	6	/* in milliamps */
+#define DEFAULT_SDIO_DRIVE_STRENGTH	6	/* in milliamps */
 
 #define RETRYCHAN(chan) ((chan) == SDPCM_EVENT_CHANNEL)
 
@@ -664,6 +582,62 @@ w_sdreg32(struct brcmf_sdio *bus, u32 regval, u32 reg_offset)
 	return ret;
 }
 
+static int
+brcmf_sdbrcm_kso_control(struct brcmf_sdio *bus, bool on)
+{
+	u8 wr_val = 0, rd_val, cmp_val, bmask;
+	int err = 0;
+	int try_cnt = 0;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	wr_val = (on << SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT);
+	/* 1st KSO write goes to AOS wake up core if device is asleep  */
+	brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+			 wr_val, &err);
+	if (err) {
+		brcmf_err("SDIO_AOS KSO write error: %d\n", err);
+		return err;
+	}
+
+	if (on) {
+		/* device WAKEUP through KSO:
+		 * write bit 0 & read back until
+		 * both bits 0 (kso bit) & 1 (dev on status) are set
+		 */
+		cmp_val = SBSDIO_FUNC1_SLEEPCSR_KSO_MASK |
+			  SBSDIO_FUNC1_SLEEPCSR_DEVON_MASK;
+		bmask = cmp_val;
+		usleep_range(2000, 3000);
+	} else {
+		/* Put device to sleep, turn off KSO */
+		cmp_val = 0;
+		/* only check for bit0, bit1(dev on status) may not
+		 * get cleared right away
+		 */
+		bmask = SBSDIO_FUNC1_SLEEPCSR_KSO_MASK;
+	}
+
+	do {
+		/* reliable KSO bit set/clr:
+		 * the sdiod sleep write access is synced to PMU 32khz clk
+		 * just one write attempt may fail,
+		 * read it back until it matches written value
+		 */
+		rd_val = brcmf_sdio_regrb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+					  &err);
+		if (((rd_val & bmask) == cmp_val) && !err)
+			break;
+		brcmf_dbg(SDIO, "KSO wr/rd retry:%d (max: %d) ERR:%x\n",
+			  try_cnt, MAX_KSO_ATTEMPTS, err);
+		udelay(KSO_WAIT_US);
+		brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+				 wr_val, &err);
+	} while (try_cnt++ < MAX_KSO_ATTEMPTS);
+
+	return err;
+}
+
 #define PKT_AVAILABLE()		(intstatus & I_HMB_FRAME_IND)
 
 #define HOSTINTMASK		(I_HMB_SW_MASK | I_CHIPACTIVE)
@@ -675,10 +649,15 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
 	u8 clkctl, clkreq, devctl;
 	unsigned long timeout;
 
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
 	clkctl = 0;
 
+	if (bus->sr_enabled) {
+		bus->clkstate = (on ? CLK_AVAIL : CLK_SDONLY);
+		return 0;
+	}
+
 	if (on) {
 		/* Request HT Avail */
 		clkreq =
@@ -713,7 +692,7 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
 			devctl |= SBSDIO_DEVCTL_CA_INT_ONLY;
 			brcmf_sdio_regwb(bus->sdiodev, SBSDIO_DEVICE_CTL,
 					 devctl, &err);
-			brcmf_dbg(INFO, "CLKCTL: set PENDING\n");
+			brcmf_dbg(SDIO, "CLKCTL: set PENDING\n");
 			bus->clkstate = CLK_PENDING;
 
 			return 0;
@@ -750,7 +729,7 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
 
 		/* Mark clock available */
 		bus->clkstate = CLK_AVAIL;
-		brcmf_dbg(INFO, "CLKCTL: turned ON\n");
+		brcmf_dbg(SDIO, "CLKCTL: turned ON\n");
 
 #if defined(DEBUG)
 		if (!bus->alp_only) {
@@ -775,7 +754,7 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
 		bus->clkstate = CLK_SDONLY;
 		brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
 				 clkreq, &err);
-		brcmf_dbg(INFO, "CLKCTL: turned OFF\n");
+		brcmf_dbg(SDIO, "CLKCTL: turned OFF\n");
 		if (err) {
 			brcmf_err("Failed access turning clock off: %d\n",
 				  err);
@@ -788,7 +767,7 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
 /* Change idle/active SD state */
 static int brcmf_sdbrcm_sdclk(struct brcmf_sdio *bus, bool on)
 {
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
 	if (on)
 		bus->clkstate = CLK_SDONLY;
@@ -805,7 +784,7 @@ static int brcmf_sdbrcm_clkctl(struct brcmf_sdio *bus, uint target, bool pendok)
 	uint oldstate = bus->clkstate;
 #endif				/* DEBUG */
 
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
 	/* Early exit if we're already there */
 	if (bus->clkstate == target) {
@@ -849,12 +828,69 @@ static int brcmf_sdbrcm_clkctl(struct brcmf_sdio *bus, uint target, bool pendok)
 		break;
 	}
 #ifdef DEBUG
-	brcmf_dbg(INFO, "%d -> %d\n", oldstate, bus->clkstate);
+	brcmf_dbg(SDIO, "%d -> %d\n", oldstate, bus->clkstate);
 #endif				/* DEBUG */
 
 	return 0;
 }
 
+static int
+brcmf_sdbrcm_bus_sleep(struct brcmf_sdio *bus, bool sleep, bool pendok)
+{
+	int err = 0;
+	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "request %s currently %s\n",
+		  (sleep ? "SLEEP" : "WAKE"),
+		  (bus->sleeping ? "SLEEP" : "WAKE"));
+
+	/* If SR is enabled control bus state with KSO */
+	if (bus->sr_enabled) {
+		/* Done if we're already in the requested state */
+		if (sleep == bus->sleeping)
+			goto end;
+
+		/* Going to sleep */
+		if (sleep) {
+			/* Don't sleep if something is pending */
+			if (atomic_read(&bus->intstatus) ||
+			    atomic_read(&bus->ipend) > 0 ||
+			    (!atomic_read(&bus->fcstate) &&
+			    brcmu_pktq_mlen(&bus->txq, ~bus->flowcontrol) &&
+			    data_ok(bus)))
+				 return -EBUSY;
+			err = brcmf_sdbrcm_kso_control(bus, false);
+			/* disable watchdog */
+			if (!err)
+				brcmf_sdbrcm_wd_timer(bus, 0);
+		} else {
+			bus->idlecount = 0;
+			err = brcmf_sdbrcm_kso_control(bus, true);
+		}
+		if (!err) {
+			/* Change state */
+			bus->sleeping = sleep;
+			brcmf_dbg(SDIO, "new state %s\n",
+				  (sleep ? "SLEEP" : "WAKE"));
+		} else {
+			brcmf_err("error while changing bus sleep state %d\n",
+				  err);
+			return err;
+		}
+	}
+
+end:
+	/* control clocks */
+	if (sleep) {
+		if (!bus->sr_enabled)
+			brcmf_sdbrcm_clkctl(bus, CLK_NONE, pendok);
+	} else {
+		brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, pendok);
+	}
+
+	return err;
+
+}
+
 static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
 {
 	u32 intstatus = 0;
@@ -862,7 +898,7 @@ static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
 	u8 fcbits;
 	int ret;
 
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(SDIO, "Enter\n");
 
 	/* Read mailbox data and ack that we did so */
 	ret = r_sdreg32(bus, &hmb_data,
@@ -875,7 +911,7 @@ static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
 
 	/* Dongle recomposed rx frames, accept them again */
 	if (hmb_data & HMB_DATA_NAKHANDLED) {
-		brcmf_dbg(INFO, "Dongle reports NAK handled, expect rtx of %d\n",
+		brcmf_dbg(SDIO, "Dongle reports NAK handled, expect rtx of %d\n",
 			  bus->rx_seq);
 		if (!bus->rxskip)
 			brcmf_err("unexpected NAKHANDLED!\n");
@@ -896,7 +932,7 @@ static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
 				  "expecting %d\n",
 				  bus->sdpcm_ver, SDPCM_PROT_VERSION);
 		else
-			brcmf_dbg(INFO, "Dongle ready, protocol version %d\n",
+			brcmf_dbg(SDIO, "Dongle ready, protocol version %d\n",
 				  bus->sdpcm_ver);
 	}
 
@@ -970,7 +1006,7 @@ static void brcmf_sdbrcm_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx)
 	if (!retries)
 		brcmf_err("count never zeroed: last 0x%04x\n", lastrbc);
 	else
-		brcmf_dbg(INFO, "flush took %d iterations\n", 0xffff - retries);
+		brcmf_dbg(SDIO, "flush took %d iterations\n", 0xffff - retries);
 
 	if (rtx) {
 		bus->sdcnt.rxrtx++;
@@ -1173,7 +1209,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 	/* If packets, issue read(s) and send up packet chain */
 	/* Return sequence numbers consumed? */
 
-	brcmf_dbg(TRACE, "start: glomd %p glom %p\n",
+	brcmf_dbg(SDIO, "start: glomd %p glom %p\n",
 		  bus->glomd, skb_peek(&bus->glom));
 
 	/* If there's a descriptor, generate the packet chain */
@@ -1546,7 +1582,7 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 	struct sk_buff_head pktlist;	/* needed for bus interface */
 	u16 pad;		/* Number of pad bytes to read */
 	uint rxleft = 0;	/* Remaining number of frames allowed */
-	int sdret;		/* Return code from calls */
+	int ret;		/* Return code from calls */
 	uint rxcount = 0;	/* Total frames read */
 	struct brcmf_sdio_read *rd = &bus->cur_read, rd_new;
 	u8 head_read = 0;
@@ -1577,15 +1613,15 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 		/* read header first for unknow frame length */
 		sdio_claim_host(bus->sdiodev->func[1]);
 		if (!rd->len) {
-			sdret = brcmf_sdcard_recv_buf(bus->sdiodev,
+			ret = brcmf_sdcard_recv_buf(bus->sdiodev,
 						      bus->sdiodev->sbwad,
 						      SDIO_FUNC_2, F2SYNC,
 						      bus->rxhdr,
 						      BRCMF_FIRSTREAD);
 			bus->sdcnt.f2rxhdrs++;
-			if (sdret < 0) {
+			if (ret < 0) {
 				brcmf_err("RXHEADER FAILED: %d\n",
-					  sdret);
+					  ret);
 				bus->sdcnt.rx_hdrfail++;
 				brcmf_sdbrcm_rxfail(bus, true, true);
 				sdio_release_host(bus->sdiodev->func[1]);
@@ -1637,14 +1673,14 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 		skb_pull(pkt, head_read);
 		pkt_align(pkt, rd->len_left, BRCMF_SDALIGN);
 
-		sdret = brcmf_sdcard_recv_pkt(bus->sdiodev, bus->sdiodev->sbwad,
+		ret = brcmf_sdcard_recv_pkt(bus->sdiodev, bus->sdiodev->sbwad,
 					      SDIO_FUNC_2, F2SYNC, pkt);
 		bus->sdcnt.f2rxdata++;
 		sdio_release_host(bus->sdiodev->func[1]);
 
-		if (sdret < 0) {
+		if (ret < 0) {
 			brcmf_err("read %d bytes from channel %d failed: %d\n",
-				  rd->len, rd->channel, sdret);
+				  rd->len, rd->channel, ret);
 			brcmu_pkt_buf_free_skb(pkt);
 			sdio_claim_host(bus->sdiodev->func[1]);
 			brcmf_sdbrcm_rxfail(bus, true,
@@ -1775,13 +1811,12 @@ brcmf_sdbrcm_wait_event_wakeup(struct brcmf_sdio *bus)
 /* Writes a HW/SW header into the packet and sends it. */
 /* Assumes: (a) header space already there, (b) caller holds lock */
 static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt,
-			      uint chan, bool free_pkt)
+			      uint chan)
 {
 	int ret;
 	u8 *frame;
 	u16 len, pad = 0;
 	u32 swheader;
-	struct sk_buff *new;
 	int i;
 
 	brcmf_dbg(TRACE, "Enter\n");
@@ -1795,30 +1830,14 @@ static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt,
 			brcmf_dbg(INFO, "insufficient headroom %d for %d pad\n",
 				  skb_headroom(pkt), pad);
 			bus->sdiodev->bus_if->tx_realloc++;
-			new = brcmu_pkt_buf_get_skb(pkt->len + BRCMF_SDALIGN);
-			if (!new) {
-				brcmf_err("couldn't allocate new %d-byte packet\n",
-					  pkt->len + BRCMF_SDALIGN);
-				ret = -ENOMEM;
+			ret = skb_cow(pkt, BRCMF_SDALIGN);
+			if (ret)
 				goto done;
-			}
-
-			pkt_align(new, pkt->len, BRCMF_SDALIGN);
-			memcpy(new->data, pkt->data, pkt->len);
-			if (free_pkt)
-				brcmu_pkt_buf_free_skb(pkt);
-			/* free the pkt if canned one is not used */
-			free_pkt = true;
-			pkt = new;
-			frame = (u8 *) (pkt->data);
-			/* precondition: (frame % BRCMF_SDALIGN) == 0) */
-			pad = 0;
-		} else {
-			skb_push(pkt, pad);
-			frame = (u8 *) (pkt->data);
-			/* precondition: pad + SDPCM_HDRLEN <= pkt->len */
-			memset(frame, 0, pad + SDPCM_HDRLEN);
+			pad = ((unsigned long)frame % BRCMF_SDALIGN);
 		}
+		skb_push(pkt, pad);
+		frame = (u8 *) (pkt->data);
+		memset(frame, 0, pad + SDPCM_HDRLEN);
 	}
 	/* precondition: pad < BRCMF_SDALIGN */
 
@@ -1833,8 +1852,8 @@ static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt,
 	    (((pad +
 	       SDPCM_HDRLEN) << SDPCM_DOFFSET_SHIFT) & SDPCM_DOFFSET_MASK);
 
-	put_unaligned_le32(swheader, frame + SDPCM_FRAMETAG_LEN);
-	put_unaligned_le32(0, frame + SDPCM_FRAMETAG_LEN + sizeof(swheader));
+	*(((__le32 *) frame) + 1) = cpu_to_le32(swheader);
+	*(((__le32 *) frame) + 2) = 0;
 
 #ifdef DEBUG
 	tx_packets[pkt->priority]++;
@@ -1900,11 +1919,7 @@ static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt,
 done:
 	/* restore pkt buffer pointer before calling tx complete routine */
 	skb_pull(pkt, SDPCM_HDRLEN + pad);
-	brcmf_txcomplete(bus->sdiodev->dev, pkt, ret != 0);
-
-	if (free_pkt)
-		brcmu_pkt_buf_free_skb(pkt);
-
+	brcmf_txcomplete(bus->sdiodev->dev, pkt, ret == 0);
 	return ret;
 }
 
@@ -1932,7 +1947,7 @@ static uint brcmf_sdbrcm_sendfromq(struct brcmf_sdio *bus, uint maxframes)
 		spin_unlock_bh(&bus->txqlock);
 		datalen = pkt->len - SDPCM_HDRLEN;
 
-		ret = brcmf_sdbrcm_txpkt(bus, pkt, SDPCM_DATA_CHANNEL, true);
+		ret = brcmf_sdbrcm_txpkt(bus, pkt, SDPCM_DATA_CHANNEL);
 
 		/* In poll mode, need to check for other events */
 		if (!bus->intr && cnt) {
@@ -1980,7 +1995,7 @@ static void brcmf_sdbrcm_bus_stop(struct device *dev)
 	sdio_claim_host(bus->sdiodev->func[1]);
 
 	/* Enable clock for device interrupts */
-	brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
+	brcmf_sdbrcm_bus_sleep(bus, false, false);
 
 	/* Disable and clear interrupts at the chip level also */
 	w_sdreg32(bus, 0, offsetof(struct sdpcmd_regs, hostintmask));
@@ -2032,23 +2047,19 @@ static void brcmf_sdbrcm_bus_stop(struct device *dev)
 	bus->tx_seq = bus->rx_seq = 0;
 }
 
-#ifdef CONFIG_BRCMFMAC_SDIO_OOB
 static inline void brcmf_sdbrcm_clrintr(struct brcmf_sdio *bus)
 {
 	unsigned long flags;
 
-	spin_lock_irqsave(&bus->sdiodev->irq_en_lock, flags);
-	if (!bus->sdiodev->irq_en && !atomic_read(&bus->ipend)) {
-		enable_irq(bus->sdiodev->irq);
-		bus->sdiodev->irq_en = true;
+	if (bus->sdiodev->oob_irq_requested) {
+		spin_lock_irqsave(&bus->sdiodev->irq_en_lock, flags);
+		if (!bus->sdiodev->irq_en && !atomic_read(&bus->ipend)) {
+			enable_irq(bus->sdiodev->pdata->oob_irq_nr);
+			bus->sdiodev->irq_en = true;
+		}
+		spin_unlock_irqrestore(&bus->sdiodev->irq_en_lock, flags);
 	}
-	spin_unlock_irqrestore(&bus->sdiodev->irq_en_lock, flags);
 }
-#else
-static inline void brcmf_sdbrcm_clrintr(struct brcmf_sdio *bus)
-{
-}
-#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */
 
 static inline void brcmf_sdbrcm_adddpctsk(struct brcmf_sdio *bus)
 {
@@ -2116,7 +2127,7 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
 	sdio_claim_host(bus->sdiodev->func[1]);
 
 	/* If waiting for HTAVAIL, check status */
-	if (bus->clkstate == CLK_PENDING) {
+	if (!bus->sr_enabled && bus->clkstate == CLK_PENDING) {
 		u8 clkctl, devctl = 0;
 
 #ifdef DEBUG
@@ -2138,7 +2149,7 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
 			bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
 		}
 
-		brcmf_dbg(INFO, "DPC: PENDING, devctl 0x%02x clkctl 0x%02x\n",
+		brcmf_dbg(SDIO, "DPC: PENDING, devctl 0x%02x clkctl 0x%02x\n",
 			  devctl, clkctl);
 
 		if (SBSDIO_HTAV(clkctl)) {
@@ -2162,7 +2173,7 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
 	}
 
 	/* Make sure backplane clock is on */
-	brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, true);
+	brcmf_sdbrcm_bus_sleep(bus, false, true);
 
 	/* Pending interrupt indicates new device status */
 	if (atomic_read(&bus->ipend) > 0) {
@@ -2308,12 +2319,22 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
 	if ((bus->clkstate != CLK_PENDING)
 	    && bus->idletime == BRCMF_IDLE_IMMEDIATE) {
 		bus->activity = false;
+		brcmf_dbg(SDIO, "idle state\n");
 		sdio_claim_host(bus->sdiodev->func[1]);
-		brcmf_sdbrcm_clkctl(bus, CLK_NONE, false);
+		brcmf_sdbrcm_bus_sleep(bus, true, false);
 		sdio_release_host(bus->sdiodev->func[1]);
 	}
 }
 
+static struct pktq *brcmf_sdbrcm_bus_gettxq(struct device *dev)
+{
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
+	struct brcmf_sdio *bus = sdiodev->bus;
+
+	return &bus->txq;
+}
+
 static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
 {
 	int ret = -EBADE;
@@ -2343,7 +2364,6 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
 	if (!brcmf_c_prec_enq(bus->sdiodev->dev, &bus->txq, pkt, prec)) {
 		skb_pull(pkt, SDPCM_HDRLEN);
 		brcmf_txcomplete(bus->sdiodev->dev, pkt, false);
-		brcmu_pkt_buf_free_skb(pkt);
 		brcmf_err("out of bus->txq !!!\n");
 		ret = -ENOSR;
 	} else {
@@ -2374,69 +2394,6 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
 	return ret;
 }
 
-static int
-brcmf_sdbrcm_membytes(struct brcmf_sdio *bus, bool write, u32 address, u8 *data,
-		 uint size)
-{
-	int bcmerror = 0;
-	u32 sdaddr;
-	uint dsize;
-
-	/* Determine initial transfer parameters */
-	sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK;
-	if ((sdaddr + size) & SBSDIO_SBWINDOW_MASK)
-		dsize = (SBSDIO_SB_OFT_ADDR_LIMIT - sdaddr);
-	else
-		dsize = size;
-
-	sdio_claim_host(bus->sdiodev->func[1]);
-
-	/* Set the backplane window to include the start address */
-	bcmerror = brcmf_sdcard_set_sbaddr_window(bus->sdiodev, address);
-	if (bcmerror) {
-		brcmf_err("window change failed\n");
-		goto xfer_done;
-	}
-
-	/* Do the transfer(s) */
-	while (size) {
-		brcmf_dbg(INFO, "%s %d bytes at offset 0x%08x in window 0x%08x\n",
-			  write ? "write" : "read", dsize,
-			  sdaddr, address & SBSDIO_SBWINDOW_MASK);
-		bcmerror = brcmf_sdcard_rwdata(bus->sdiodev, write,
-					       sdaddr, data, dsize);
-		if (bcmerror) {
-			brcmf_err("membytes transfer failed\n");
-			break;
-		}
-
-		/* Adjust for next transfer (if any) */
-		size -= dsize;
-		if (size) {
-			data += dsize;
-			address += dsize;
-			bcmerror = brcmf_sdcard_set_sbaddr_window(bus->sdiodev,
-								  address);
-			if (bcmerror) {
-				brcmf_err("window change failed\n");
-				break;
-			}
-			sdaddr = 0;
-			dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size);
-		}
-	}
-
-xfer_done:
-	/* Return the window to backplane enumeration space for core access */
-	if (brcmf_sdcard_set_sbaddr_window(bus->sdiodev, bus->sdiodev->sbwad))
-		brcmf_err("FAILED to set window back to 0x%x\n",
-			  bus->sdiodev->sbwad);
-
-	sdio_release_host(bus->sdiodev->func[1]);
-
-	return bcmerror;
-}
-
 #ifdef DEBUG
 #define CONSOLE_LINE_MAX	192
 
@@ -2453,8 +2410,8 @@ static int brcmf_sdbrcm_readconsole(struct brcmf_sdio *bus)
 
 	/* Read console log struct */
 	addr = bus->console_addr + offsetof(struct rte_console, log_le);
-	rv = brcmf_sdbrcm_membytes(bus, false, addr, (u8 *)&c->log_le,
-				   sizeof(c->log_le));
+	rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr, (u8 *)&c->log_le,
+			      sizeof(c->log_le));
 	if (rv < 0)
 		return rv;
 
@@ -2479,7 +2436,7 @@ static int brcmf_sdbrcm_readconsole(struct brcmf_sdio *bus)
 
 	/* Read the console buffer */
 	addr = le32_to_cpu(c->log_le.buf);
-	rv = brcmf_sdbrcm_membytes(bus, false, addr, c->buf, c->bufsize);
+	rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr, c->buf, c->bufsize);
 	if (rv < 0)
 		return rv;
 
@@ -2604,7 +2561,7 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
 
 	/* Make sure backplane clock is on */
 	sdio_claim_host(bus->sdiodev->func[1]);
-	brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
+	brcmf_sdbrcm_bus_sleep(bus, false, false);
 	sdio_release_host(bus->sdiodev->func[1]);
 
 	/* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */
@@ -2633,10 +2590,10 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
 						 msecs_to_jiffies(2000));
 
 		if (!bus->ctrl_frame_stat) {
-			brcmf_dbg(INFO, "ctrl_frame_stat == false\n");
+			brcmf_dbg(SDIO, "ctrl_frame_stat == false\n");
 			ret = 0;
 		} else {
-			brcmf_dbg(INFO, "ctrl_frame_stat == true\n");
+			brcmf_dbg(SDIO, "ctrl_frame_stat == true\n");
 			ret = -1;
 		}
 	}
@@ -2662,6 +2619,7 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
 
 		bus->activity = false;
 		sdio_claim_host(bus->sdiodev->func[1]);
+		brcmf_dbg(INFO, "idle\n");
 		brcmf_sdbrcm_clkctl(bus, CLK_NONE, true);
 		sdio_release_host(bus->sdiodev->func[1]);
 	} else {
@@ -2691,23 +2649,22 @@ static int brcmf_sdio_readshared(struct brcmf_sdio *bus,
 	struct sdpcm_shared_le sh_le;
 	__le32 addr_le;
 
-	shaddr = bus->ramsize - 4;
+	shaddr = bus->ci->rambase + bus->ramsize - 4;
 
 	/*
 	 * Read last word in socram to determine
 	 * address of sdpcm_shared structure
 	 */
 	sdio_claim_host(bus->sdiodev->func[1]);
-	brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
-	rv = brcmf_sdbrcm_membytes(bus, false, shaddr,
-				   (u8 *)&addr_le, 4);
+	brcmf_sdbrcm_bus_sleep(bus, false, false);
+	rv = brcmf_sdio_ramrw(bus->sdiodev, false, shaddr, (u8 *)&addr_le, 4);
 	sdio_release_host(bus->sdiodev->func[1]);
 	if (rv < 0)
 		return rv;
 
 	addr = le32_to_cpu(addr_le);
 
-	brcmf_dbg(INFO, "sdpcm_shared address 0x%08X\n", addr);
+	brcmf_dbg(SDIO, "sdpcm_shared address 0x%08X\n", addr);
 
 	/*
 	 * Check if addr is valid.
@@ -2720,8 +2677,8 @@ static int brcmf_sdio_readshared(struct brcmf_sdio *bus,
 	}
 
 	/* Read hndrte_shared structure */
-	rv = brcmf_sdbrcm_membytes(bus, false, addr, (u8 *)&sh_le,
-				   sizeof(struct sdpcm_shared_le));
+	rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr, (u8 *)&sh_le,
+			      sizeof(struct sdpcm_shared_le));
 	if (rv < 0)
 		return rv;
 
@@ -2734,8 +2691,8 @@ static int brcmf_sdio_readshared(struct brcmf_sdio *bus,
 	sh->console_addr = le32_to_cpu(sh_le.console_addr);
 	sh->msgtrace_addr = le32_to_cpu(sh_le.msgtrace_addr);
 
-	if ((sh->flags & SDPCM_SHARED_VERSION_MASK) != SDPCM_SHARED_VERSION) {
-		brcmf_err("sdpcm_shared version mismatch: dhd %d dongle %d\n",
+	if ((sh->flags & SDPCM_SHARED_VERSION_MASK) > SDPCM_SHARED_VERSION) {
+		brcmf_err("sdpcm shared version unsupported: dhd %d dongle %d\n",
 			  SDPCM_SHARED_VERSION,
 			  sh->flags & SDPCM_SHARED_VERSION_MASK);
 		return -EPROTO;
@@ -2757,22 +2714,22 @@ static int brcmf_sdio_dump_console(struct brcmf_sdio *bus,
 
 	/* obtain console information from device memory */
 	addr = sh->console_addr + offsetof(struct rte_console, log_le);
-	rv = brcmf_sdbrcm_membytes(bus, false, addr,
-			(u8 *)&sh_val, sizeof(u32));
+	rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr,
+			      (u8 *)&sh_val, sizeof(u32));
 	if (rv < 0)
 		return rv;
 	console_ptr = le32_to_cpu(sh_val);
 
 	addr = sh->console_addr + offsetof(struct rte_console, log_le.buf_size);
-	rv = brcmf_sdbrcm_membytes(bus, false, addr,
-			(u8 *)&sh_val, sizeof(u32));
+	rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr,
+			      (u8 *)&sh_val, sizeof(u32));
 	if (rv < 0)
 		return rv;
 	console_size = le32_to_cpu(sh_val);
 
 	addr = sh->console_addr + offsetof(struct rte_console, log_le.idx);
-	rv = brcmf_sdbrcm_membytes(bus, false, addr,
-			(u8 *)&sh_val, sizeof(u32));
+	rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr,
+			      (u8 *)&sh_val, sizeof(u32));
 	if (rv < 0)
 		return rv;
 	console_index = le32_to_cpu(sh_val);
@@ -2786,8 +2743,8 @@ static int brcmf_sdio_dump_console(struct brcmf_sdio *bus,
 
 	/* obtain the console data from device */
 	conbuf[console_size] = '\0';
-	rv = brcmf_sdbrcm_membytes(bus, false, console_ptr, (u8 *)conbuf,
-				   console_size);
+	rv = brcmf_sdio_ramrw(bus->sdiodev, false, console_ptr, (u8 *)conbuf,
+			      console_size);
 	if (rv < 0)
 		goto done;
 
@@ -2817,21 +2774,18 @@ static int brcmf_sdio_trap_info(struct brcmf_sdio *bus, struct sdpcm_shared *sh,
 	int error, res;
 	char buf[350];
 	struct brcmf_trap_info tr;
-	int nbytes;
 	loff_t pos = 0;
 
-	if ((sh->flags & SDPCM_SHARED_TRAP) == 0)
+	if ((sh->flags & SDPCM_SHARED_TRAP) == 0) {
+		brcmf_dbg(INFO, "no trap in firmware\n");
 		return 0;
+	}
 
-	error = brcmf_sdbrcm_membytes(bus, false, sh->trap_addr, (u8 *)&tr,
-				      sizeof(struct brcmf_trap_info));
+	error = brcmf_sdio_ramrw(bus->sdiodev, false, sh->trap_addr, (u8 *)&tr,
+				 sizeof(struct brcmf_trap_info));
 	if (error < 0)
 		return error;
 
-	nbytes = brcmf_sdio_dump_console(bus, sh, data, count);
-	if (nbytes < 0)
-		return nbytes;
-
 	res = scnprintf(buf, sizeof(buf),
 			"dongle trap info: type 0x%x @ epc 0x%08x\n"
 			"  cpsr 0x%08x spsr 0x%08x sp 0x%08x\n"
@@ -2847,12 +2801,7 @@ static int brcmf_sdio_trap_info(struct brcmf_sdio *bus, struct sdpcm_shared *sh,
 			le32_to_cpu(tr.r4), le32_to_cpu(tr.r5),
 			le32_to_cpu(tr.r6), le32_to_cpu(tr.r7));
 
-	error = simple_read_from_buffer(data+nbytes, count, &pos, buf, res);
-	if (error < 0)
-		return error;
-
-	nbytes += error;
-	return nbytes;
+	return simple_read_from_buffer(data, count, &pos, buf, res);
 }
 
 static int brcmf_sdio_assert_info(struct brcmf_sdio *bus,
@@ -2876,14 +2825,14 @@ static int brcmf_sdio_assert_info(struct brcmf_sdio *bus,
 
 	sdio_claim_host(bus->sdiodev->func[1]);
 	if (sh->assert_file_addr != 0) {
-		error = brcmf_sdbrcm_membytes(bus, false, sh->assert_file_addr,
-					      (u8 *)file, 80);
+		error = brcmf_sdio_ramrw(bus->sdiodev, false,
+					 sh->assert_file_addr, (u8 *)file, 80);
 		if (error < 0)
 			return error;
 	}
 	if (sh->assert_exp_addr != 0) {
-		error = brcmf_sdbrcm_membytes(bus, false, sh->assert_exp_addr,
-					      (u8 *)expr, 80);
+		error = brcmf_sdio_ramrw(bus->sdiodev, false,
+					 sh->assert_exp_addr, (u8 *)expr, 80);
 		if (error < 0)
 			return error;
 	}
@@ -2934,14 +2883,20 @@ static int brcmf_sdbrcm_died_dump(struct brcmf_sdio *bus, char __user *data,
 	error = brcmf_sdio_assert_info(bus, &sh, data, count);
 	if (error < 0)
 		goto done;
-
 	nbytes = error;
-	error = brcmf_sdio_trap_info(bus, &sh, data, count);
+
+	error = brcmf_sdio_trap_info(bus, &sh, data+nbytes, count);
+	if (error < 0)
+		goto done;
+	nbytes += error;
+
+	error = brcmf_sdio_dump_console(bus, &sh, data+nbytes, count);
 	if (error < 0)
 		goto done;
+	nbytes += error;
 
-	error += nbytes;
-	*ppos += error;
+	error = nbytes;
+	*ppos += nbytes;
 done:
 	return error;
 }
@@ -3035,84 +2990,8 @@ brcmf_sdbrcm_bus_rxctl(struct device *dev, unsigned char *msg, uint msglen)
 	return rxlen ? (int)rxlen : -ETIMEDOUT;
 }
 
-static int brcmf_sdbrcm_write_vars(struct brcmf_sdio *bus)
+static bool brcmf_sdbrcm_download_state(struct brcmf_sdio *bus, bool enter)
 {
-	int bcmerror = 0;
-	u32 varaddr;
-	u32 varsizew;
-	__le32 varsizew_le;
-#ifdef DEBUG
-	char *nvram_ularray;
-#endif				/* DEBUG */
-
-	/* Even if there are no vars are to be written, we still
-		 need to set the ramsize. */
-	varaddr = (bus->ramsize - 4) - bus->varsz;
-
-	if (bus->vars) {
-		/* Write the vars list */
-		bcmerror = brcmf_sdbrcm_membytes(bus, true, varaddr,
-						 bus->vars, bus->varsz);
-#ifdef DEBUG
-		/* Verify NVRAM bytes */
-		brcmf_dbg(INFO, "Compare NVRAM dl & ul; varsize=%d\n",
-			  bus->varsz);
-		nvram_ularray = kmalloc(bus->varsz, GFP_ATOMIC);
-		if (!nvram_ularray)
-			return -ENOMEM;
-
-		/* Upload image to verify downloaded contents. */
-		memset(nvram_ularray, 0xaa, bus->varsz);
-
-		/* Read the vars list to temp buffer for comparison */
-		bcmerror = brcmf_sdbrcm_membytes(bus, false, varaddr,
-						 nvram_ularray, bus->varsz);
-		if (bcmerror) {
-			brcmf_err("error %d on reading %d nvram bytes at 0x%08x\n",
-				  bcmerror, bus->varsz, varaddr);
-		}
-		/* Compare the org NVRAM with the one read from RAM */
-		if (memcmp(bus->vars, nvram_ularray, bus->varsz))
-			brcmf_err("Downloaded NVRAM image is corrupted\n");
-		else
-			brcmf_err("Download/Upload/Compare of NVRAM ok\n");
-
-		kfree(nvram_ularray);
-#endif				/* DEBUG */
-	}
-
-	/* adjust to the user specified RAM */
-	brcmf_dbg(INFO, "Physical memory size: %d\n", bus->ramsize);
-	brcmf_dbg(INFO, "Vars are at %d, orig varsize is %d\n",
-		  varaddr, bus->varsz);
-
-	/*
-	 * Determine the length token:
-	 * Varsize, converted to words, in lower 16-bits, checksum
-	 * in upper 16-bits.
-	 */
-	if (bcmerror) {
-		varsizew = 0;
-		varsizew_le = cpu_to_le32(0);
-	} else {
-		varsizew = bus->varsz / 4;
-		varsizew = (~varsizew << 16) | (varsizew & 0x0000FFFF);
-		varsizew_le = cpu_to_le32(varsizew);
-	}
-
-	brcmf_dbg(INFO, "New varsize is %d, length token=0x%08x\n",
-		  bus->varsz, varsizew);
-
-	/* Write the length token to the last word */
-	bcmerror = brcmf_sdbrcm_membytes(bus, true, (bus->ramsize - 4),
-					 (u8 *)&varsizew_le, 4);
-
-	return bcmerror;
-}
-
-static int brcmf_sdbrcm_download_state(struct brcmf_sdio *bus, bool enter)
-{
-	int bcmerror = 0;
 	struct chip_info *ci = bus->ci;
 
 	/* To enter download state, disable ARM and reset SOCRAM.
@@ -3121,41 +3000,19 @@ static int brcmf_sdbrcm_download_state(struct brcmf_sdio *bus, bool enter)
 	if (enter) {
 		bus->alp_only = true;
 
-		ci->coredisable(bus->sdiodev, ci, BCMA_CORE_ARM_CM3);
-
-		ci->resetcore(bus->sdiodev, ci, BCMA_CORE_INTERNAL_MEM);
-
-		/* Clear the top bit of memory */
-		if (bus->ramsize) {
-			u32 zeros = 0;
-			brcmf_sdbrcm_membytes(bus, true, bus->ramsize - 4,
-					 (u8 *)&zeros, 4);
-		}
+		brcmf_sdio_chip_enter_download(bus->sdiodev, ci);
 	} else {
-		if (!ci->iscoreup(bus->sdiodev, ci, BCMA_CORE_INTERNAL_MEM)) {
-			brcmf_err("SOCRAM core is down after reset?\n");
-			bcmerror = -EBADE;
-			goto fail;
-		}
-
-		bcmerror = brcmf_sdbrcm_write_vars(bus);
-		if (bcmerror) {
-			brcmf_err("no vars written to RAM\n");
-			bcmerror = 0;
-		}
-
-		w_sdreg32(bus, 0xFFFFFFFF,
-			  offsetof(struct sdpcmd_regs, intstatus));
-
-		ci->resetcore(bus->sdiodev, ci, BCMA_CORE_ARM_CM3);
+		if (!brcmf_sdio_chip_exit_download(bus->sdiodev, ci, bus->vars,
+						   bus->varsz))
+			return false;
 
 		/* Allow HT Clock now that the ARM is running. */
 		bus->alp_only = false;
 
 		bus->sdiodev->bus_if->state = BRCMF_BUS_LOAD;
 	}
-fail:
-	return bcmerror;
+
+	return true;
 }
 
 static int brcmf_sdbrcm_get_image(char *buf, int len, struct brcmf_sdio *bus)
@@ -3170,10 +3027,11 @@ static int brcmf_sdbrcm_get_image(char *buf, int len, struct brcmf_sdio *bus)
 
 static int brcmf_sdbrcm_download_code_file(struct brcmf_sdio *bus)
 {
-	int offset = 0;
+	int offset;
 	uint len;
 	u8 *memblock = NULL, *memptr;
 	int ret;
+	u8 idx;
 
 	brcmf_dbg(INFO, "Enter\n");
 
@@ -3194,10 +3052,15 @@ static int brcmf_sdbrcm_download_code_file(struct brcmf_sdio *bus)
 		memptr += (BRCMF_SDALIGN -
 			   ((u32)(unsigned long)memblock % BRCMF_SDALIGN));
 
+	offset = bus->ci->rambase;
+
 	/* Download image */
-	while ((len =
-		brcmf_sdbrcm_get_image((char *)memptr, MEMBLOCK, bus))) {
-		ret = brcmf_sdbrcm_membytes(bus, true, offset, memptr, len);
+	len = brcmf_sdbrcm_get_image((char *)memptr, MEMBLOCK, bus);
+	idx = brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_ARM_CR4);
+	if (BRCMF_MAX_CORENUM != idx)
+		memcpy(&bus->ci->rst_vec, memptr, sizeof(bus->ci->rst_vec));
+	while (len) {
+		ret = brcmf_sdio_ramrw(bus->sdiodev, true, offset, memptr, len);
 		if (ret) {
 			brcmf_err("error %d on writing %d membytes at 0x%08x\n",
 				  ret, MEMBLOCK, offset);
@@ -3205,6 +3068,7 @@ static int brcmf_sdbrcm_download_code_file(struct brcmf_sdio *bus)
 		}
 
 		offset += MEMBLOCK;
+		len = brcmf_sdbrcm_get_image((char *)memptr, MEMBLOCK, bus);
 	}
 
 err:
@@ -3312,7 +3176,7 @@ static int _brcmf_sdbrcm_download_firmware(struct brcmf_sdio *bus)
 	int bcmerror = -1;
 
 	/* Keep arm in reset */
-	if (brcmf_sdbrcm_download_state(bus, true)) {
+	if (!brcmf_sdbrcm_download_state(bus, true)) {
 		brcmf_err("error placing ARM core in reset\n");
 		goto err;
 	}
@@ -3328,7 +3192,7 @@ static int _brcmf_sdbrcm_download_firmware(struct brcmf_sdio *bus)
 	}
 
 	/* Take arm out of reset */
-	if (brcmf_sdbrcm_download_state(bus, false)) {
+	if (!brcmf_sdbrcm_download_state(bus, false)) {
 		brcmf_err("error getting out of ARM core reset\n");
 		goto err;
 	}
@@ -3339,6 +3203,103 @@ err:
 	return bcmerror;
 }
 
+static bool brcmf_sdbrcm_sr_capable(struct brcmf_sdio *bus)
+{
+	u32 addr, reg;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	/* old chips with PMU version less than 17 don't support save restore */
+	if (bus->ci->pmurev < 17)
+		return false;
+
+	/* read PMU chipcontrol register 3*/
+	addr = CORE_CC_REG(bus->ci->c_inf[0].base, chipcontrol_addr);
+	brcmf_sdio_regwl(bus->sdiodev, addr, 3, NULL);
+	addr = CORE_CC_REG(bus->ci->c_inf[0].base, chipcontrol_data);
+	reg = brcmf_sdio_regrl(bus->sdiodev, addr, NULL);
+
+	return (bool)reg;
+}
+
+static void brcmf_sdbrcm_sr_init(struct brcmf_sdio *bus)
+{
+	int err = 0;
+	u8 val;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	val = brcmf_sdio_regrb(bus->sdiodev, SBSDIO_FUNC1_WAKEUPCTRL,
+			       &err);
+	if (err) {
+		brcmf_err("error reading SBSDIO_FUNC1_WAKEUPCTRL\n");
+		return;
+	}
+
+	val |= 1 << SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT;
+	brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_WAKEUPCTRL,
+			 val, &err);
+	if (err) {
+		brcmf_err("error writing SBSDIO_FUNC1_WAKEUPCTRL\n");
+		return;
+	}
+
+	/* Add CMD14 Support */
+	brcmf_sdio_regwb(bus->sdiodev, SDIO_CCCR_BRCM_CARDCAP,
+			 (SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT |
+			  SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT),
+			 &err);
+	if (err) {
+		brcmf_err("error writing SDIO_CCCR_BRCM_CARDCAP\n");
+		return;
+	}
+
+	brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
+			 SBSDIO_FORCE_HT, &err);
+	if (err) {
+		brcmf_err("error writing SBSDIO_FUNC1_CHIPCLKCSR\n");
+		return;
+	}
+
+	/* set flag */
+	bus->sr_enabled = true;
+	brcmf_dbg(INFO, "SR enabled\n");
+}
+
+/* enable KSO bit */
+static int brcmf_sdbrcm_kso_init(struct brcmf_sdio *bus)
+{
+	u8 val;
+	int err = 0;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	/* KSO bit added in SDIO core rev 12 */
+	if (bus->ci->c_inf[1].rev < 12)
+		return 0;
+
+	val = brcmf_sdio_regrb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+			       &err);
+	if (err) {
+		brcmf_err("error reading SBSDIO_FUNC1_SLEEPCSR\n");
+		return err;
+	}
+
+	if (!(val & SBSDIO_FUNC1_SLEEPCSR_KSO_MASK)) {
+		val |= (SBSDIO_FUNC1_SLEEPCSR_KSO_EN <<
+			SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT);
+		brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+				 val, &err);
+		if (err) {
+			brcmf_err("error writing SBSDIO_FUNC1_SLEEPCSR\n");
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+
 static bool
 brcmf_sdbrcm_download_firmware(struct brcmf_sdio *bus)
 {
@@ -3437,8 +3398,13 @@ static int brcmf_sdbrcm_bus_init(struct device *dev)
 		ret = -ENODEV;
 	}
 
-	/* Restore previous clock setting */
-	brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR, saveclk, &err);
+	if (brcmf_sdbrcm_sr_capable(bus)) {
+		brcmf_sdbrcm_sr_init(bus);
+	} else {
+		/* Restore previous clock setting */
+		brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
+				 saveclk, &err);
+	}
 
 	if (ret == 0) {
 		ret = brcmf_sdio_intr_register(bus->sdiodev);
@@ -3499,7 +3465,8 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 	brcmf_dbg(TIMER, "Enter\n");
 
 	/* Poll period: check device if appropriate. */
-	if (bus->poll && (++bus->polltick >= bus->pollrate)) {
+	if (!bus->sr_enabled &&
+	    bus->poll && (++bus->polltick >= bus->pollrate)) {
 		u32 intstatus = 0;
 
 		/* Reset poll tick */
@@ -3550,7 +3517,7 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 			bus->console.count -= bus->console_interval;
 			sdio_claim_host(bus->sdiodev->func[1]);
 			/* Make sure backplane clock is on */
-			brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
+			brcmf_sdbrcm_bus_sleep(bus, false, false);
 			if (brcmf_sdbrcm_readconsole(bus) < 0)
 				/* stop on error */
 				bus->console_interval = 0;
@@ -3567,8 +3534,9 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 				bus->activity = false;
 				brcmf_sdbrcm_wd_timer(bus, BRCMF_WD_POLL_MS);
 			} else {
+				brcmf_dbg(SDIO, "idle\n");
 				sdio_claim_host(bus->sdiodev->func[1]);
-				brcmf_sdbrcm_clkctl(bus, CLK_NONE, false);
+				brcmf_sdbrcm_bus_sleep(bus, true, false);
 				sdio_release_host(bus->sdiodev->func[1]);
 			}
 		}
@@ -3579,6 +3547,8 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 
 static bool brcmf_sdbrcm_chipmatch(u16 chipid)
 {
+	if (chipid == BCM43143_CHIP_ID)
+		return true;
 	if (chipid == BCM43241_CHIP_ID)
 		return true;
 	if (chipid == BCM4329_CHIP_ID)
@@ -3587,6 +3557,8 @@ static bool brcmf_sdbrcm_chipmatch(u16 chipid)
 		return true;
 	if (chipid == BCM4334_CHIP_ID)
 		return true;
+	if (chipid == BCM4335_CHIP_ID)
+		return true;
 	return false;
 }
 
@@ -3664,7 +3636,7 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
 	int err = 0;
 	int reg_addr;
 	u32 reg_val;
-	u8 idx;
+	u32 drivestrength;
 
 	bus->alp_only = true;
 
@@ -3700,8 +3672,16 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
 		goto fail;
 	}
 
-	brcmf_sdio_chip_drivestrengthinit(bus->sdiodev, bus->ci,
-					  SDIO_DRIVE_STRENGTH);
+	if (brcmf_sdbrcm_kso_init(bus)) {
+		brcmf_err("error enabling KSO\n");
+		goto fail;
+	}
+
+	if ((bus->sdiodev->pdata) && (bus->sdiodev->pdata->drive_strength))
+		drivestrength = bus->sdiodev->pdata->drive_strength;
+	else
+		drivestrength = DEFAULT_SDIO_DRIVE_STRENGTH;
+	brcmf_sdio_chip_drivestrengthinit(bus->sdiodev, bus->ci, drivestrength);
 
 	/* Get info on the SOCRAM cores... */
 	bus->ramsize = bus->ci->ramsize;
@@ -3710,12 +3690,37 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
 		goto fail;
 	}
 
-	/* Set core control so an SDIO reset does a backplane reset */
-	idx = brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_SDIO_DEV);
-	reg_addr = bus->ci->c_inf[idx].base +
-		   offsetof(struct sdpcmd_regs, corecontrol);
-	reg_val = brcmf_sdio_regrl(bus->sdiodev, reg_addr, NULL);
-	brcmf_sdio_regwl(bus->sdiodev, reg_addr, reg_val | CC_BPRESEN, NULL);
+	/* Set card control so an SDIO card reset does a WLAN backplane reset */
+	reg_val = brcmf_sdio_regrb(bus->sdiodev,
+				   SDIO_CCCR_BRCM_CARDCTRL, &err);
+	if (err)
+		goto fail;
+
+	reg_val |= SDIO_CCCR_BRCM_CARDCTRL_WLANRESET;
+
+	brcmf_sdio_regwb(bus->sdiodev,
+			 SDIO_CCCR_BRCM_CARDCTRL, reg_val, &err);
+	if (err)
+		goto fail;
+
+	/* set PMUControl so a backplane reset does PMU state reload */
+	reg_addr = CORE_CC_REG(bus->ci->c_inf[0].base,
+			       pmucontrol);
+	reg_val = brcmf_sdio_regrl(bus->sdiodev,
+				   reg_addr,
+				   &err);
+	if (err)
+		goto fail;
+
+	reg_val |= (BCMA_CC_PMU_CTL_RES_RELOAD << BCMA_CC_PMU_CTL_RES_SHIFT);
+
+	brcmf_sdio_regwl(bus->sdiodev,
+			 reg_addr,
+			 reg_val,
+			 &err);
+	if (err)
+		goto fail;
+
 
 	sdio_release_host(bus->sdiodev->func[1]);
 
@@ -3769,6 +3774,10 @@ static bool brcmf_sdbrcm_probe_init(struct brcmf_sdio *bus)
 	bus->use_rxchain = false;
 	bus->sd_rxchain = false;
 
+	/* SR state */
+	bus->sleeping = false;
+	bus->sr_enabled = false;
+
 	return true;
 }
 
@@ -3856,6 +3865,7 @@ static struct brcmf_bus_ops brcmf_sdio_bus_ops = {
 	.txdata = brcmf_sdbrcm_bus_txdata,
 	.txctl = brcmf_sdbrcm_bus_txctl,
 	.rxctl = brcmf_sdbrcm_bus_rxctl,
+	.gettxq = brcmf_sdbrcm_bus_gettxq,
 };
 
 void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
index e9d6f91a1f2b..5a64280e6485 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c
@@ -20,6 +20,8 @@
 
 #include "dhd.h"
 #include "dhd_dbg.h"
+#include "tracepoint.h"
+#include "fwsignal.h"
 #include "fweh.h"
 #include "fwil.h"
 
@@ -154,7 +156,7 @@ static int brcmf_fweh_call_event_handler(struct brcmf_if *ifp,
 		fweh = &ifp->drvr->fweh;
 
 		/* handle the event if valid interface and handler */
-		if (ifp->ndev && fweh->evt_handler[code])
+		if (fweh->evt_handler[code])
 			err = fweh->evt_handler[code](ifp, emsg, data);
 		else
 			brcmf_err("unhandled event %d ignored\n", code);
@@ -179,9 +181,9 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr,
 	struct brcmf_if *ifp;
 	int err = 0;
 
-	brcmf_dbg(EVENT, "action: %u idx: %u bsscfg: %u flags: %u\n",
-		  ifevent->action, ifevent->ifidx,
-		  ifevent->bssidx, ifevent->flags);
+	brcmf_dbg(EVENT, "action: %u idx: %u bsscfg: %u flags: %u role: %u\n",
+		  ifevent->action, ifevent->ifidx, ifevent->bssidx,
+		  ifevent->flags, ifevent->role);
 
 	if (ifevent->ifidx >= BRCMF_MAX_IFS) {
 		brcmf_err("invalid interface index: %u\n",
@@ -198,15 +200,20 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr,
 				   emsg->ifname, emsg->addr);
 		if (IS_ERR(ifp))
 			return;
-
+		brcmf_fws_add_interface(ifp);
 		if (!drvr->fweh.evt_handler[BRCMF_E_IF])
 			err = brcmf_net_attach(ifp, false);
 	}
 
+	if (ifevent->action == BRCMF_E_IF_CHANGE)
+		brcmf_fws_reset_interface(ifp);
+
 	err = brcmf_fweh_call_event_handler(ifp, emsg->event_code, emsg, data);
 
-	if (ifevent->action == BRCMF_E_IF_DEL)
+	if (ifevent->action == BRCMF_E_IF_DEL) {
+		brcmf_fws_del_interface(ifp);
 		brcmf_del_if(drvr, ifevent->bssidx);
+	}
 }
 
 /**
@@ -400,13 +407,12 @@ int brcmf_fweh_activate_events(struct brcmf_if *ifp)
  *
  * @drvr: driver information object.
  * @event_packet: event packet to process.
- * @ifidx: index of the firmware interface (may change).
  *
  * If the packet buffer contains a firmware event message it will
  * dispatch the event to a registered handler (using worker).
  */
 void brcmf_fweh_process_event(struct brcmf_pub *drvr,
-			      struct brcmf_event *event_packet, u8 *ifidx)
+			      struct brcmf_event *event_packet)
 {
 	enum brcmf_fweh_event_code code;
 	struct brcmf_fweh_info *fweh = &drvr->fweh;
@@ -418,7 +424,6 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
 	/* get event info */
 	code = get_unaligned_be32(&event_packet->msg.event_type);
 	datalen = get_unaligned_be32(&event_packet->msg.datalen);
-	*ifidx = event_packet->msg.ifidx;
 	data = &event_packet[1];
 
 	if (code >= BRCMF_E_LAST)
@@ -435,7 +440,7 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
 		return;
 
 	event->code = code;
-	event->ifidx = *ifidx;
+	event->ifidx = event_packet->msg.ifidx;
 
 	/* use memcpy to get aligned event message */
 	memcpy(&event->emsg, &event_packet->msg, sizeof(event->emsg));
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
index 8c39b51dcccf..6ec5db9c60a5 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
@@ -187,10 +187,10 @@ void brcmf_fweh_unregister(struct brcmf_pub *drvr,
 			   enum brcmf_fweh_event_code code);
 int brcmf_fweh_activate_events(struct brcmf_if *ifp);
 void brcmf_fweh_process_event(struct brcmf_pub *drvr,
-			      struct brcmf_event *event_packet, u8 *ifidx);
+			      struct brcmf_event *event_packet);
 
 static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr,
-					  struct sk_buff *skb, u8 *ifidx)
+					  struct sk_buff *skb)
 {
 	struct brcmf_event *event_packet;
 	u8 *data;
@@ -213,7 +213,7 @@ static inline void brcmf_fweh_process_skb(struct brcmf_pub *drvr,
 	if (usr_stype != BCMILCP_BCM_SUBTYPE_EVENT)
 		return;
 
-	brcmf_fweh_process_event(drvr, event_packet, ifidx);
+	brcmf_fweh_process_event(drvr, event_packet);
 }
 
 #endif /* FWEH_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwil.c b/drivers/net/wireless/brcm80211/brcmfmac/fwil.c
index 8d1def935b8d..04f395930d86 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwil.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwil.c
@@ -25,6 +25,7 @@
 #include "dhd.h"
 #include "dhd_bus.h"
 #include "dhd_dbg.h"
+#include "tracepoint.h"
 #include "fwil.h"
 
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
new file mode 100644
index 000000000000..5352dc1fdf3c
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -0,0 +1,2067 @@
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/if_ether.h>
+#include <linux/spinlock.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/err.h>
+#include <linux/jiffies.h>
+#include <uapi/linux/nl80211.h>
+#include <net/cfg80211.h>
+
+#include <brcmu_utils.h>
+#include <brcmu_wifi.h>
+#include "dhd.h"
+#include "dhd_proto.h"
+#include "dhd_dbg.h"
+#include "dhd_bus.h"
+#include "fwil.h"
+#include "fwil_types.h"
+#include "fweh.h"
+#include "fwsignal.h"
+#include "p2p.h"
+#include "wl_cfg80211.h"
+
+/**
+ * DOC: Firmware Signalling
+ *
+ * Firmware can send signals to host and vice versa, which are passed in the
+ * data packets using TLV based header. This signalling layer is on top of the
+ * BDC bus protocol layer.
+ */
+
+/*
+ * single definition for firmware-driver flow control tlv's.
+ *
+ * each tlv is specified by BRCMF_FWS_TLV_DEF(name, ID, length).
+ * A length value 0 indicates variable length tlv.
+ */
+#define BRCMF_FWS_TLV_DEFLIST \
+	BRCMF_FWS_TLV_DEF(MAC_OPEN, 1, 1) \
+	BRCMF_FWS_TLV_DEF(MAC_CLOSE, 2, 1) \
+	BRCMF_FWS_TLV_DEF(MAC_REQUEST_CREDIT, 3, 2) \
+	BRCMF_FWS_TLV_DEF(TXSTATUS, 4, 4) \
+	BRCMF_FWS_TLV_DEF(PKTTAG, 5, 4) \
+	BRCMF_FWS_TLV_DEF(MACDESC_ADD,	6, 8) \
+	BRCMF_FWS_TLV_DEF(MACDESC_DEL, 7, 8) \
+	BRCMF_FWS_TLV_DEF(RSSI, 8, 1) \
+	BRCMF_FWS_TLV_DEF(INTERFACE_OPEN, 9, 1) \
+	BRCMF_FWS_TLV_DEF(INTERFACE_CLOSE, 10, 1) \
+	BRCMF_FWS_TLV_DEF(FIFO_CREDITBACK, 11, 6) \
+	BRCMF_FWS_TLV_DEF(PENDING_TRAFFIC_BMP, 12, 2) \
+	BRCMF_FWS_TLV_DEF(MAC_REQUEST_PACKET, 13, 3) \
+	BRCMF_FWS_TLV_DEF(HOST_REORDER_RXPKTS, 14, 10) \
+	BRCMF_FWS_TLV_DEF(TRANS_ID, 18, 6) \
+	BRCMF_FWS_TLV_DEF(COMP_TXSTATUS, 19, 1) \
+	BRCMF_FWS_TLV_DEF(FILLER, 255, 0)
+
+/*
+ * enum brcmf_fws_tlv_type - definition of tlv identifiers.
+ */
+#define BRCMF_FWS_TLV_DEF(name, id, len) \
+	BRCMF_FWS_TYPE_ ## name =  id,
+enum brcmf_fws_tlv_type {
+	BRCMF_FWS_TLV_DEFLIST
+	BRCMF_FWS_TYPE_INVALID
+};
+#undef BRCMF_FWS_TLV_DEF
+
+/*
+ * enum brcmf_fws_tlv_len - definition of tlv lengths.
+ */
+#define BRCMF_FWS_TLV_DEF(name, id, len) \
+	BRCMF_FWS_TYPE_ ## name ## _LEN = (len),
+enum brcmf_fws_tlv_len {
+	BRCMF_FWS_TLV_DEFLIST
+};
+#undef BRCMF_FWS_TLV_DEF
+
+#ifdef DEBUG
+/*
+ * brcmf_fws_tlv_names - array of tlv names.
+ */
+#define BRCMF_FWS_TLV_DEF(name, id, len) \
+	{ id, #name },
+static struct {
+	enum brcmf_fws_tlv_type id;
+	const char *name;
+} brcmf_fws_tlv_names[] = {
+	BRCMF_FWS_TLV_DEFLIST
+};
+#undef BRCMF_FWS_TLV_DEF
+
+static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(brcmf_fws_tlv_names); i++)
+		if (brcmf_fws_tlv_names[i].id == id)
+			return brcmf_fws_tlv_names[i].name;
+
+	return "INVALID";
+}
+#else
+static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id)
+{
+	return "NODEBUG";
+}
+#endif /* DEBUG */
+
+/*
+ * flags used to enable tlv signalling from firmware.
+ */
+#define BRCMF_FWS_FLAGS_RSSI_SIGNALS			0x0001
+#define BRCMF_FWS_FLAGS_XONXOFF_SIGNALS			0x0002
+#define BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS		0x0004
+#define BRCMF_FWS_FLAGS_HOST_PROPTXSTATUS_ACTIVE	0x0008
+#define BRCMF_FWS_FLAGS_PSQ_GENERATIONFSM_ENABLE	0x0010
+#define BRCMF_FWS_FLAGS_PSQ_ZERO_BUFFER_ENABLE		0x0020
+#define BRCMF_FWS_FLAGS_HOST_RXREORDER_ACTIVE		0x0040
+
+#define BRCMF_FWS_MAC_DESC_TABLE_SIZE			32
+#define BRCMF_FWS_MAC_DESC_ID_INVALID			0xff
+
+#define BRCMF_FWS_HOSTIF_FLOWSTATE_OFF			0
+#define BRCMF_FWS_HOSTIF_FLOWSTATE_ON			1
+#define BRCMF_FWS_FLOWCONTROL_HIWATER			128
+#define BRCMF_FWS_FLOWCONTROL_LOWATER			64
+
+#define BRCMF_FWS_PSQ_PREC_COUNT		((NL80211_NUM_ACS + 1) * 2)
+#define BRCMF_FWS_PSQ_LEN				256
+
+#define BRCMF_FWS_HTOD_FLAG_PKTFROMHOST			0x01
+#define BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED		0x02
+
+#define BRCMF_FWS_RET_OK_NOSCHEDULE	0
+#define BRCMF_FWS_RET_OK_SCHEDULE	1
+
+/**
+ * enum brcmf_fws_skb_state - indicates processing state of skb.
+ *
+ * @BRCMF_FWS_SKBSTATE_NEW: sk_buff is newly arrived in the driver.
+ * @BRCMF_FWS_SKBSTATE_DELAYED: sk_buff had to wait on queue.
+ * @BRCMF_FWS_SKBSTATE_SUPPRESSED: sk_buff has been suppressed by firmware.
+ */
+enum brcmf_fws_skb_state {
+	BRCMF_FWS_SKBSTATE_NEW,
+	BRCMF_FWS_SKBSTATE_DELAYED,
+	BRCMF_FWS_SKBSTATE_SUPPRESSED
+};
+
+/**
+ * struct brcmf_skbuff_cb - control buffer associated with skbuff.
+ *
+ * @if_flags: holds interface index and packet related flags.
+ * @htod: host to device packet identifier (used in PKTTAG tlv).
+ * @state: transmit state of the packet.
+ * @mac: descriptor related to destination for this packet.
+ *
+ * This information is stored in control buffer struct sk_buff::cb, which
+ * provides 48 bytes of storage so this structure should not exceed that.
+ */
+struct brcmf_skbuff_cb {
+	u16 if_flags;
+	u32 htod;
+	enum brcmf_fws_skb_state state;
+	struct brcmf_fws_mac_descriptor *mac;
+};
+
+/*
+ * macro casting skbuff control buffer to struct brcmf_skbuff_cb.
+ */
+#define brcmf_skbcb(skb)	((struct brcmf_skbuff_cb *)((skb)->cb))
+
+/*
+ * sk_buff control if flags
+ *
+ *	b[11]  - packet sent upon firmware request.
+ *	b[10]  - packet only contains signalling data.
+ *	b[9]   - packet is a tx packet.
+ *	b[8]   - packet uses FIFO credit (non-pspoll).
+ *	b[7]   - interface in AP mode.
+ *	b[6:4] - AC FIFO number.
+ *	b[3:0] - interface index.
+ */
+#define BRCMF_SKB_IF_FLAGS_REQUESTED_MASK	0x0800
+#define BRCMF_SKB_IF_FLAGS_REQUESTED_SHIFT	11
+#define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_MASK	0x0400
+#define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_SHIFT	10
+#define BRCMF_SKB_IF_FLAGS_TRANSMIT_MASK        0x0200
+#define BRCMF_SKB_IF_FLAGS_TRANSMIT_SHIFT	9
+#define BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK	0x0100
+#define BRCMF_SKB_IF_FLAGS_CREDITCHECK_SHIFT	8
+#define BRCMF_SKB_IF_FLAGS_IF_AP_MASK		0x0080
+#define BRCMF_SKB_IF_FLAGS_IF_AP_SHIFT		7
+#define BRCMF_SKB_IF_FLAGS_FIFO_MASK		0x0070
+#define BRCMF_SKB_IF_FLAGS_FIFO_SHIFT		4
+#define BRCMF_SKB_IF_FLAGS_INDEX_MASK		0x000f
+#define BRCMF_SKB_IF_FLAGS_INDEX_SHIFT		0
+
+#define brcmf_skb_if_flags_set_field(skb, field, value) \
+	brcmu_maskset16(&(brcmf_skbcb(skb)->if_flags), \
+			BRCMF_SKB_IF_FLAGS_ ## field ## _MASK, \
+			BRCMF_SKB_IF_FLAGS_ ## field ## _SHIFT, (value))
+#define brcmf_skb_if_flags_get_field(skb, field) \
+	brcmu_maskget16(brcmf_skbcb(skb)->if_flags, \
+			BRCMF_SKB_IF_FLAGS_ ## field ## _MASK, \
+			BRCMF_SKB_IF_FLAGS_ ## field ## _SHIFT)
+
+/*
+ * sk_buff control packet identifier
+ *
+ * 32-bit packet identifier used in PKTTAG tlv from host to dongle.
+ *
+ * - Generated at the host (e.g. dhd)
+ * - Seen as a generic sequence number by firmware except for the flags field.
+ *
+ * Generation	: b[31]	=> generation number for this packet [host->fw]
+ *			   OR, current generation number [fw->host]
+ * Flags	: b[30:27] => command, status flags
+ * FIFO-AC	: b[26:24] => AC-FIFO id
+ * h-slot	: b[23:8] => hanger-slot
+ * freerun	: b[7:0] => A free running counter
+ */
+#define BRCMF_SKB_HTOD_TAG_GENERATION_MASK		0x80000000
+#define BRCMF_SKB_HTOD_TAG_GENERATION_SHIFT		31
+#define BRCMF_SKB_HTOD_TAG_FLAGS_MASK			0x78000000
+#define BRCMF_SKB_HTOD_TAG_FLAGS_SHIFT			27
+#define BRCMF_SKB_HTOD_TAG_FIFO_MASK			0x07000000
+#define BRCMF_SKB_HTOD_TAG_FIFO_SHIFT			24
+#define BRCMF_SKB_HTOD_TAG_HSLOT_MASK			0x00ffff00
+#define BRCMF_SKB_HTOD_TAG_HSLOT_SHIFT			8
+#define BRCMF_SKB_HTOD_TAG_FREERUN_MASK			0x000000ff
+#define BRCMF_SKB_HTOD_TAG_FREERUN_SHIFT			0
+
+#define brcmf_skb_htod_tag_set_field(skb, field, value) \
+	brcmu_maskset32(&(brcmf_skbcb(skb)->htod), \
+			BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \
+			BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT, (value))
+#define brcmf_skb_htod_tag_get_field(skb, field) \
+	brcmu_maskget32(brcmf_skbcb(skb)->htod, \
+			BRCMF_SKB_HTOD_TAG_ ## field ## _MASK, \
+			BRCMF_SKB_HTOD_TAG_ ## field ## _SHIFT)
+
+#define BRCMF_FWS_TXSTAT_GENERATION_MASK	0x80000000
+#define BRCMF_FWS_TXSTAT_GENERATION_SHIFT	31
+#define BRCMF_FWS_TXSTAT_FLAGS_MASK		0x78000000
+#define BRCMF_FWS_TXSTAT_FLAGS_SHIFT		27
+#define BRCMF_FWS_TXSTAT_FIFO_MASK		0x07000000
+#define BRCMF_FWS_TXSTAT_FIFO_SHIFT		24
+#define BRCMF_FWS_TXSTAT_HSLOT_MASK		0x00FFFF00
+#define BRCMF_FWS_TXSTAT_HSLOT_SHIFT		8
+#define BRCMF_FWS_TXSTAT_PKTID_MASK		0x00FFFFFF
+#define BRCMF_FWS_TXSTAT_PKTID_SHIFT		0
+
+#define brcmf_txstatus_get_field(txs, field) \
+	brcmu_maskget32(txs, BRCMF_FWS_TXSTAT_ ## field ## _MASK, \
+			BRCMF_FWS_TXSTAT_ ## field ## _SHIFT)
+
+/* How long to defer borrowing in jiffies */
+#define BRCMF_FWS_BORROW_DEFER_PERIOD		(HZ / 10)
+
+/**
+ * enum brcmf_fws_fifo - fifo indices used by dongle firmware.
+ *
+ * @BRCMF_FWS_FIFO_AC_BK: fifo for background traffic.
+ * @BRCMF_FWS_FIFO_AC_BE: fifo for best-effort traffic.
+ * @BRCMF_FWS_FIFO_AC_VI: fifo for video traffic.
+ * @BRCMF_FWS_FIFO_AC_VO: fifo for voice traffic.
+ * @BRCMF_FWS_FIFO_BCMC: fifo for broadcast/multicast (AP only).
+ * @BRCMF_FWS_FIFO_ATIM: fifo for ATIM (AP only).
+ * @BRCMF_FWS_FIFO_COUNT: number of fifos.
+ */
+enum brcmf_fws_fifo {
+	BRCMF_FWS_FIFO_AC_BK,
+	BRCMF_FWS_FIFO_AC_BE,
+	BRCMF_FWS_FIFO_AC_VI,
+	BRCMF_FWS_FIFO_AC_VO,
+	BRCMF_FWS_FIFO_BCMC,
+	BRCMF_FWS_FIFO_ATIM,
+	BRCMF_FWS_FIFO_COUNT
+};
+
+/**
+ * enum brcmf_fws_txstatus - txstatus flag values.
+ *
+ * @BRCMF_FWS_TXSTATUS_DISCARD:
+ *	host is free to discard the packet.
+ * @BRCMF_FWS_TXSTATUS_CORE_SUPPRESS:
+ *	802.11 core suppressed the packet.
+ * @BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS:
+ *	firmware suppress the packet as device is already in PS mode.
+ * @BRCMF_FWS_TXSTATUS_FW_TOSSED:
+ *	firmware tossed the packet.
+ */
+enum brcmf_fws_txstatus {
+	BRCMF_FWS_TXSTATUS_DISCARD,
+	BRCMF_FWS_TXSTATUS_CORE_SUPPRESS,
+	BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS,
+	BRCMF_FWS_TXSTATUS_FW_TOSSED
+};
+
+enum brcmf_fws_fcmode {
+	BRCMF_FWS_FCMODE_NONE,
+	BRCMF_FWS_FCMODE_IMPLIED_CREDIT,
+	BRCMF_FWS_FCMODE_EXPLICIT_CREDIT
+};
+
+enum brcmf_fws_mac_desc_state {
+	BRCMF_FWS_STATE_OPEN = 1,
+	BRCMF_FWS_STATE_CLOSE
+};
+
+/**
+ * struct brcmf_fws_mac_descriptor - firmware signalling data per node/interface
+ *
+ * @occupied: slot is in use.
+ * @mac_handle: handle for mac entry determined by firmware.
+ * @interface_id: interface index.
+ * @state: current state.
+ * @suppressed: mac entry is suppressed.
+ * @generation: generation bit.
+ * @ac_bitmap: ac queue bitmap.
+ * @requested_credit: credits requested by firmware.
+ * @ea: ethernet address.
+ * @seq: per-node free-running sequence.
+ * @psq: power-save queue.
+ * @transit_count: packet in transit to firmware.
+ */
+struct brcmf_fws_mac_descriptor {
+	u8 occupied;
+	u8 mac_handle;
+	u8 interface_id;
+	u8 state;
+	bool suppressed;
+	u8 generation;
+	u8 ac_bitmap;
+	u8 requested_credit;
+	u8 requested_packet;
+	u8 ea[ETH_ALEN];
+	u8 seq[BRCMF_FWS_FIFO_COUNT];
+	struct pktq psq;
+	int transit_count;
+	int suppress_count;
+	int suppr_transit_count;
+	bool send_tim_signal;
+	u8 traffic_pending_bmp;
+	u8 traffic_lastreported_bmp;
+};
+
+#define BRCMF_FWS_HANGER_MAXITEMS	1024
+
+/**
+ * enum brcmf_fws_hanger_item_state - state of hanger item.
+ *
+ * @BRCMF_FWS_HANGER_ITEM_STATE_FREE: item is free for use.
+ * @BRCMF_FWS_HANGER_ITEM_STATE_INUSE: item is in use.
+ * @BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED: item was suppressed.
+ */
+enum brcmf_fws_hanger_item_state {
+	BRCMF_FWS_HANGER_ITEM_STATE_FREE = 1,
+	BRCMF_FWS_HANGER_ITEM_STATE_INUSE,
+	BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED
+};
+
+
+/**
+ * struct brcmf_fws_hanger_item - single entry for tx pending packet.
+ *
+ * @state: entry is either free or occupied.
+ * @gen: generation.
+ * @pkt: packet itself.
+ */
+struct brcmf_fws_hanger_item {
+	enum brcmf_fws_hanger_item_state state;
+	u8 gen;
+	struct sk_buff *pkt;
+};
+
+/**
+ * struct brcmf_fws_hanger - holds packets awaiting firmware txstatus.
+ *
+ * @pushed: packets pushed to await txstatus.
+ * @popped: packets popped upon handling txstatus.
+ * @failed_to_push: packets that could not be pushed.
+ * @failed_to_pop: packets that could not be popped.
+ * @failed_slotfind: packets for which failed to find an entry.
+ * @slot_pos: last returned item index for a free entry.
+ * @items: array of hanger items.
+ */
+struct brcmf_fws_hanger {
+	u32 pushed;
+	u32 popped;
+	u32 failed_to_push;
+	u32 failed_to_pop;
+	u32 failed_slotfind;
+	u32 slot_pos;
+	struct brcmf_fws_hanger_item items[BRCMF_FWS_HANGER_MAXITEMS];
+};
+
+struct brcmf_fws_macdesc_table {
+	struct brcmf_fws_mac_descriptor nodes[BRCMF_FWS_MAC_DESC_TABLE_SIZE];
+	struct brcmf_fws_mac_descriptor iface[BRCMF_MAX_IFS];
+	struct brcmf_fws_mac_descriptor other;
+};
+
+struct brcmf_fws_info {
+	struct brcmf_pub *drvr;
+	struct brcmf_fws_stats stats;
+	struct brcmf_fws_hanger hanger;
+	enum brcmf_fws_fcmode fcmode;
+	struct brcmf_fws_macdesc_table desc;
+	struct workqueue_struct *fws_wq;
+	struct work_struct fws_dequeue_work;
+	u32 fifo_enqpkt[BRCMF_FWS_FIFO_COUNT];
+	int fifo_credit[BRCMF_FWS_FIFO_COUNT];
+	int credits_borrowed[BRCMF_FWS_FIFO_AC_VO + 1];
+	int deq_node_pos[BRCMF_FWS_FIFO_COUNT];
+	u32 fifo_credit_map;
+	u32 fifo_delay_map;
+	unsigned long borrow_defer_timestamp;
+};
+
+/*
+ * brcmf_fws_prio2fifo - mapping from 802.1d priority to firmware fifo index.
+ */
+static const int brcmf_fws_prio2fifo[] = {
+	BRCMF_FWS_FIFO_AC_BE,
+	BRCMF_FWS_FIFO_AC_BK,
+	BRCMF_FWS_FIFO_AC_BK,
+	BRCMF_FWS_FIFO_AC_BE,
+	BRCMF_FWS_FIFO_AC_VI,
+	BRCMF_FWS_FIFO_AC_VI,
+	BRCMF_FWS_FIFO_AC_VO,
+	BRCMF_FWS_FIFO_AC_VO
+};
+
+static int fcmode;
+module_param(fcmode, int, S_IRUSR);
+MODULE_PARM_DESC(fcmode, "mode of firmware signalled flow control");
+
+#define BRCMF_FWS_TLV_DEF(name, id, len) \
+	case BRCMF_FWS_TYPE_ ## name: \
+		return len;
+
+/**
+ * brcmf_fws_get_tlv_len() - returns defined length for given tlv id.
+ *
+ * @fws: firmware-signalling information.
+ * @id: identifier of the TLV.
+ *
+ * Return: the specified length for the given TLV; Otherwise -EINVAL.
+ */
+static int brcmf_fws_get_tlv_len(struct brcmf_fws_info *fws,
+				 enum brcmf_fws_tlv_type id)
+{
+	switch (id) {
+	BRCMF_FWS_TLV_DEFLIST
+	default:
+		fws->stats.tlv_invalid_type++;
+		break;
+	}
+	return -EINVAL;
+}
+#undef BRCMF_FWS_TLV_DEF
+
+static bool brcmf_fws_ifidx_match(struct sk_buff *skb, void *arg)
+{
+	u32 ifidx = brcmf_skb_if_flags_get_field(skb, INDEX);
+	return ifidx == *(int *)arg;
+}
+
+static void brcmf_fws_psq_flush(struct brcmf_fws_info *fws, struct pktq *q,
+				int ifidx)
+{
+	bool (*matchfn)(struct sk_buff *, void *) = NULL;
+	struct sk_buff *skb;
+	int prec;
+
+	if (ifidx != -1)
+		matchfn = brcmf_fws_ifidx_match;
+	for (prec = 0; prec < q->num_prec; prec++) {
+		skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
+		while (skb) {
+			brcmu_pkt_buf_free_skb(skb);
+			skb = brcmu_pktq_pdeq_match(q, prec, matchfn, &ifidx);
+		}
+	}
+}
+
+static void brcmf_fws_hanger_init(struct brcmf_fws_hanger *hanger)
+{
+	int i;
+
+	brcmf_dbg(TRACE, "enter\n");
+	memset(hanger, 0, sizeof(*hanger));
+	for (i = 0; i < ARRAY_SIZE(hanger->items); i++)
+		hanger->items[i].state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
+}
+
+static u32 brcmf_fws_hanger_get_free_slot(struct brcmf_fws_hanger *h)
+{
+	u32 i;
+
+	brcmf_dbg(TRACE, "enter\n");
+	i = (h->slot_pos + 1) % BRCMF_FWS_HANGER_MAXITEMS;
+
+	while (i != h->slot_pos) {
+		if (h->items[i].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
+			h->slot_pos = i;
+			goto done;
+		}
+		i++;
+		if (i == BRCMF_FWS_HANGER_MAXITEMS)
+			i = 0;
+	}
+	brcmf_err("all slots occupied\n");
+	h->failed_slotfind++;
+	i = BRCMF_FWS_HANGER_MAXITEMS;
+done:
+	brcmf_dbg(TRACE, "exit: %d\n", i);
+	return i;
+}
+
+static int brcmf_fws_hanger_pushpkt(struct brcmf_fws_hanger *h,
+					   struct sk_buff *pkt, u32 slot_id)
+{
+	brcmf_dbg(TRACE, "enter\n");
+	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
+		return -ENOENT;
+
+	if (h->items[slot_id].state != BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
+		brcmf_err("slot is not free\n");
+		h->failed_to_push++;
+		return -EINVAL;
+	}
+
+	h->items[slot_id].state = BRCMF_FWS_HANGER_ITEM_STATE_INUSE;
+	h->items[slot_id].pkt = pkt;
+	h->pushed++;
+	return 0;
+}
+
+static int brcmf_fws_hanger_poppkt(struct brcmf_fws_hanger *h,
+					  u32 slot_id, struct sk_buff **pktout,
+					  bool remove_item)
+{
+	brcmf_dbg(TRACE, "enter\n");
+	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
+		return -ENOENT;
+
+	if (h->items[slot_id].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
+		brcmf_err("entry not in use\n");
+		h->failed_to_pop++;
+		return -EINVAL;
+	}
+
+	*pktout = h->items[slot_id].pkt;
+	if (remove_item) {
+		h->items[slot_id].state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
+		h->items[slot_id].pkt = NULL;
+		h->items[slot_id].gen = 0xff;
+		h->popped++;
+	}
+	return 0;
+}
+
+static int brcmf_fws_hanger_mark_suppressed(struct brcmf_fws_hanger *h,
+						   u32 slot_id, u8 gen)
+{
+	brcmf_dbg(TRACE, "enter\n");
+
+	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
+		return -ENOENT;
+
+	h->items[slot_id].gen = gen;
+
+	if (h->items[slot_id].state != BRCMF_FWS_HANGER_ITEM_STATE_INUSE) {
+		brcmf_err("entry not in use\n");
+		return -EINVAL;
+	}
+
+	h->items[slot_id].state = BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED;
+	return 0;
+}
+
+static int brcmf_fws_hanger_get_genbit(struct brcmf_fws_hanger *hanger,
+					      struct sk_buff *pkt, u32 slot_id,
+					      int *gen)
+{
+	brcmf_dbg(TRACE, "enter\n");
+	*gen = 0xff;
+
+	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
+		return -ENOENT;
+
+	if (hanger->items[slot_id].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
+		brcmf_err("slot not in use\n");
+		return -EINVAL;
+	}
+
+	*gen = hanger->items[slot_id].gen;
+	return 0;
+}
+
+static void brcmf_fws_hanger_cleanup(struct brcmf_fws_info *fws,
+				     bool (*fn)(struct sk_buff *, void *),
+				     int ifidx)
+{
+	struct brcmf_fws_hanger *h = &fws->hanger;
+	struct sk_buff *skb;
+	int i;
+	enum brcmf_fws_hanger_item_state s;
+
+	brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
+	for (i = 0; i < ARRAY_SIZE(h->items); i++) {
+		s = h->items[i].state;
+		if (s == BRCMF_FWS_HANGER_ITEM_STATE_INUSE ||
+		    s == BRCMF_FWS_HANGER_ITEM_STATE_INUSE_SUPPRESSED) {
+			skb = h->items[i].pkt;
+			if (fn == NULL || fn(skb, &ifidx)) {
+				/* suppress packets freed from psq */
+				if (s == BRCMF_FWS_HANGER_ITEM_STATE_INUSE)
+					brcmu_pkt_buf_free_skb(skb);
+				h->items[i].state =
+					BRCMF_FWS_HANGER_ITEM_STATE_FREE;
+			}
+		}
+	}
+}
+
+static void brcmf_fws_init_mac_descriptor(struct brcmf_fws_mac_descriptor *desc,
+					  u8 *addr, u8 ifidx)
+{
+	brcmf_dbg(TRACE,
+		  "enter: desc %p ea=%pM, ifidx=%u\n", desc, addr, ifidx);
+	desc->occupied = 1;
+	desc->state = BRCMF_FWS_STATE_OPEN;
+	desc->requested_credit = 0;
+	/* depending on use may need ifp->bssidx instead */
+	desc->interface_id = ifidx;
+	desc->ac_bitmap = 0xff; /* update this when handling APSD */
+	if (addr)
+		memcpy(&desc->ea[0], addr, ETH_ALEN);
+}
+
+static
+void brcmf_fws_clear_mac_descriptor(struct brcmf_fws_mac_descriptor *desc)
+{
+	brcmf_dbg(TRACE,
+		  "enter: ea=%pM, ifidx=%u\n", desc->ea, desc->interface_id);
+	desc->occupied = 0;
+	desc->state = BRCMF_FWS_STATE_CLOSE;
+	desc->requested_credit = 0;
+}
+
+static struct brcmf_fws_mac_descriptor *
+brcmf_fws_mac_descriptor_lookup(struct brcmf_fws_info *fws, u8 *ea)
+{
+	struct brcmf_fws_mac_descriptor *entry;
+	int i;
+
+	brcmf_dbg(TRACE, "enter: ea=%pM\n", ea);
+	if (ea == NULL)
+		return ERR_PTR(-EINVAL);
+
+	entry = &fws->desc.nodes[0];
+	for (i = 0; i < ARRAY_SIZE(fws->desc.nodes); i++) {
+		if (entry->occupied && !memcmp(entry->ea, ea, ETH_ALEN))
+			return entry;
+		entry++;
+	}
+
+	return ERR_PTR(-ENOENT);
+}
+
+static struct brcmf_fws_mac_descriptor*
+brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, struct brcmf_if *ifp,
+			u8 *da)
+{
+	struct brcmf_fws_mac_descriptor *entry = &fws->desc.other;
+	bool multicast;
+	enum nl80211_iftype iftype;
+
+	brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx);
+
+	multicast = is_multicast_ether_addr(da);
+	iftype = brcmf_cfg80211_get_iftype(ifp);
+
+	/* Multicast destination and P2P clients get the interface entry.
+	 * STA gets the interface entry if there is no exact match. For
+	 * example, TDLS destinations have their own entry.
+	 */
+	entry = NULL;
+	if ((multicast || iftype == NL80211_IFTYPE_STATION ||
+	     iftype == NL80211_IFTYPE_P2P_CLIENT) && ifp->fws_desc)
+		entry = ifp->fws_desc;
+
+	if (entry != NULL && iftype != NL80211_IFTYPE_STATION)
+		goto done;
+
+	entry = brcmf_fws_mac_descriptor_lookup(fws, da);
+	if (IS_ERR(entry))
+		entry = &fws->desc.other;
+
+done:
+	brcmf_dbg(TRACE, "exit: entry=%p\n", entry);
+	return entry;
+}
+
+static bool brcmf_fws_mac_desc_closed(struct brcmf_fws_info *fws,
+				      struct brcmf_fws_mac_descriptor *entry,
+				      int fifo)
+{
+	struct brcmf_fws_mac_descriptor *if_entry;
+	bool closed;
+
+	/* for unique destination entries the related interface
+	 * may be closed.
+	 */
+	if (entry->mac_handle) {
+		if_entry = &fws->desc.iface[entry->interface_id];
+		if (if_entry->state == BRCMF_FWS_STATE_CLOSE)
+			return true;
+	}
+	/* an entry is closed when the state is closed and
+	 * the firmware did not request anything.
+	 */
+	closed = entry->state == BRCMF_FWS_STATE_CLOSE &&
+		 !entry->requested_credit && !entry->requested_packet;
+
+	/* Or firmware does not allow traffic for given fifo */
+	return closed || !(entry->ac_bitmap & BIT(fifo));
+}
+
+static void brcmf_fws_mac_desc_cleanup(struct brcmf_fws_info *fws,
+				       struct brcmf_fws_mac_descriptor *entry,
+				       int ifidx)
+{
+	brcmf_dbg(TRACE, "enter: entry=(ea=%pM, ifid=%d), ifidx=%d\n",
+		  entry->ea, entry->interface_id, ifidx);
+	if (entry->occupied && (ifidx == -1 || ifidx == entry->interface_id)) {
+		brcmf_dbg(TRACE, "flush psq: ifidx=%d, qlen=%d\n",
+			  ifidx, entry->psq.len);
+		brcmf_fws_psq_flush(fws, &entry->psq, ifidx);
+		entry->occupied = !!(entry->psq.len);
+	}
+}
+
+static void brcmf_fws_bus_txq_cleanup(struct brcmf_fws_info *fws,
+				      bool (*fn)(struct sk_buff *, void *),
+				      int ifidx)
+{
+	struct brcmf_fws_hanger_item *hi;
+	struct pktq *txq;
+	struct sk_buff *skb;
+	int prec;
+	u32 hslot;
+
+	brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
+	txq = brcmf_bus_gettxq(fws->drvr->bus_if);
+	if (IS_ERR(txq)) {
+		brcmf_dbg(TRACE, "no txq to clean up\n");
+		return;
+	}
+
+	for (prec = 0; prec < txq->num_prec; prec++) {
+		skb = brcmu_pktq_pdeq_match(txq, prec, fn, &ifidx);
+		while (skb) {
+			hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
+			hi = &fws->hanger.items[hslot];
+			WARN_ON(skb != hi->pkt);
+			hi->state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
+			brcmu_pkt_buf_free_skb(skb);
+			skb = brcmu_pktq_pdeq_match(txq, prec, fn, &ifidx);
+		}
+	}
+}
+
+static void brcmf_fws_cleanup(struct brcmf_fws_info *fws, int ifidx)
+{
+	int i;
+	struct brcmf_fws_mac_descriptor *table;
+	bool (*matchfn)(struct sk_buff *, void *) = NULL;
+
+	brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
+	if (fws == NULL)
+		return;
+
+	if (ifidx != -1)
+		matchfn = brcmf_fws_ifidx_match;
+
+	/* cleanup individual nodes */
+	table = &fws->desc.nodes[0];
+	for (i = 0; i < ARRAY_SIZE(fws->desc.nodes); i++)
+		brcmf_fws_mac_desc_cleanup(fws, &table[i], ifidx);
+
+	brcmf_fws_mac_desc_cleanup(fws, &fws->desc.other, ifidx);
+	brcmf_fws_bus_txq_cleanup(fws, matchfn, ifidx);
+	brcmf_fws_hanger_cleanup(fws, matchfn, ifidx);
+}
+
+static void brcmf_fws_tim_update(struct brcmf_fws_info *ctx,
+				 struct brcmf_fws_mac_descriptor *entry,
+				 int prec)
+{
+	brcmf_dbg(TRACE, "enter: ea=%pM\n", entry->ea);
+	if (entry->state == BRCMF_FWS_STATE_CLOSE) {
+		/* check delayedQ and suppressQ in one call using bitmap */
+		if (brcmu_pktq_mlen(&entry->psq, 3 << (prec * 2)) == 0)
+			entry->traffic_pending_bmp =
+				entry->traffic_pending_bmp & ~NBITVAL(prec);
+		else
+			entry->traffic_pending_bmp =
+				entry->traffic_pending_bmp | NBITVAL(prec);
+	}
+	/* request a TIM update to firmware at the next piggyback opportunity */
+	if (entry->traffic_lastreported_bmp != entry->traffic_pending_bmp)
+		entry->send_tim_signal = true;
+}
+
+static void
+brcmf_fws_flow_control_check(struct brcmf_fws_info *fws, struct pktq *pq,
+			     u8 if_id)
+{
+	struct brcmf_if *ifp = fws->drvr->iflist[if_id];
+
+	if (WARN_ON(!ifp))
+		return;
+
+	brcmf_dbg(TRACE,
+		  "enter: bssidx=%d, ifidx=%d\n", ifp->bssidx, ifp->ifidx);
+
+	if ((ifp->netif_stop & BRCMF_NETIF_STOP_REASON_FWS_FC) &&
+	    pq->len <= BRCMF_FWS_FLOWCONTROL_LOWATER)
+		brcmf_txflowblock_if(ifp,
+				     BRCMF_NETIF_STOP_REASON_FWS_FC, false);
+	if (!(ifp->netif_stop & BRCMF_NETIF_STOP_REASON_FWS_FC) &&
+	    pq->len >= BRCMF_FWS_FLOWCONTROL_HIWATER)
+		brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_FWS_FC, true);
+	return;
+}
+
+static int brcmf_fws_rssi_indicate(struct brcmf_fws_info *fws, s8 rssi)
+{
+	brcmf_dbg(CTL, "rssi %d\n", rssi);
+	return 0;
+}
+
+static
+int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
+{
+	struct brcmf_fws_mac_descriptor *entry, *existing;
+	u8 mac_handle;
+	u8 ifidx;
+	u8 *addr;
+
+	mac_handle = *data++;
+	ifidx = *data++;
+	addr = data;
+
+	entry = &fws->desc.nodes[mac_handle & 0x1F];
+	if (type == BRCMF_FWS_TYPE_MACDESC_DEL) {
+		brcmf_dbg(TRACE, "deleting mac %pM idx %d\n", addr, ifidx);
+		if (entry->occupied) {
+			brcmf_fws_mac_desc_cleanup(fws, entry, -1);
+			brcmf_fws_clear_mac_descriptor(entry);
+		} else
+			fws->stats.mac_update_failed++;
+		return 0;
+	}
+
+	brcmf_dbg(TRACE,
+		  "add mac %pM handle %u idx %d\n", addr, mac_handle, ifidx);
+	existing = brcmf_fws_mac_descriptor_lookup(fws, addr);
+	if (IS_ERR(existing)) {
+		if (!entry->occupied) {
+			entry->mac_handle = mac_handle;
+			brcmf_fws_init_mac_descriptor(entry, addr, ifidx);
+			brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
+					BRCMF_FWS_PSQ_LEN);
+		} else {
+			fws->stats.mac_update_failed++;
+		}
+	} else {
+		if (entry != existing) {
+			brcmf_dbg(TRACE, "relocate mac\n");
+			memcpy(entry, existing,
+			       offsetof(struct brcmf_fws_mac_descriptor, psq));
+			entry->mac_handle = mac_handle;
+			brcmf_fws_clear_mac_descriptor(existing);
+		} else {
+			brcmf_dbg(TRACE, "use existing\n");
+			WARN_ON(entry->mac_handle != mac_handle);
+			/* TODO: what should we do here: continue, reinit, .. */
+		}
+	}
+	return 0;
+}
+
+static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws,
+					    u8 type, u8 *data)
+{
+	struct brcmf_fws_mac_descriptor *entry;
+	u8 mac_handle;
+	int i;
+
+	mac_handle = data[0];
+	entry = &fws->desc.nodes[mac_handle & 0x1F];
+	if (!entry->occupied) {
+		fws->stats.mac_ps_update_failed++;
+		return -ESRCH;
+	}
+
+	/* a state update should wipe old credits? */
+	entry->requested_credit = 0;
+	if (type == BRCMF_FWS_TYPE_MAC_OPEN) {
+		entry->state = BRCMF_FWS_STATE_OPEN;
+		return BRCMF_FWS_RET_OK_SCHEDULE;
+	} else {
+		entry->state = BRCMF_FWS_STATE_CLOSE;
+		for (i = BRCMF_FWS_FIFO_AC_BE; i < NL80211_NUM_ACS; i++)
+			brcmf_fws_tim_update(fws, entry, i);
+	}
+	return BRCMF_FWS_RET_OK_NOSCHEDULE;
+}
+
+static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws,
+					      u8 type, u8 *data)
+{
+	struct brcmf_fws_mac_descriptor *entry;
+	u8 ifidx;
+	int ret;
+
+	ifidx = data[0];
+
+	brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
+	if (ifidx >= BRCMF_MAX_IFS) {
+		ret = -ERANGE;
+		goto fail;
+	}
+
+	entry = &fws->desc.iface[ifidx];
+	if (!entry->occupied) {
+		ret = -ESRCH;
+		goto fail;
+	}
+
+	switch (type) {
+	case BRCMF_FWS_TYPE_INTERFACE_OPEN:
+		entry->state = BRCMF_FWS_STATE_OPEN;
+		return BRCMF_FWS_RET_OK_SCHEDULE;
+	case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
+		entry->state = BRCMF_FWS_STATE_CLOSE;
+		return BRCMF_FWS_RET_OK_NOSCHEDULE;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+fail:
+	fws->stats.if_update_failed++;
+	return ret;
+}
+
+static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type,
+				      u8 *data)
+{
+	struct brcmf_fws_mac_descriptor *entry;
+
+	entry = &fws->desc.nodes[data[1] & 0x1F];
+	if (!entry->occupied) {
+		if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT)
+			fws->stats.credit_request_failed++;
+		else
+			fws->stats.packet_request_failed++;
+		return -ESRCH;
+	}
+
+	if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT)
+		entry->requested_credit = data[0];
+	else
+		entry->requested_packet = data[0];
+
+	entry->ac_bitmap = data[2];
+	return BRCMF_FWS_RET_OK_SCHEDULE;
+}
+
+static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
+				     u8 fifo, u8 credits)
+{
+	int lender_ac;
+	int *borrowed;
+	int *fifo_credit;
+
+	if (!credits)
+		return;
+
+	if ((fifo == BRCMF_FWS_FIFO_AC_BE) &&
+	    (fws->credits_borrowed[0])) {
+		for (lender_ac = BRCMF_FWS_FIFO_AC_VO; lender_ac >= 0;
+		     lender_ac--) {
+			borrowed = &fws->credits_borrowed[lender_ac];
+			if (*borrowed) {
+				fws->fifo_credit_map |= (1 << lender_ac);
+				fifo_credit = &fws->fifo_credit[lender_ac];
+				if (*borrowed >= credits) {
+					*borrowed -= credits;
+					*fifo_credit += credits;
+					return;
+				} else {
+					credits -= *borrowed;
+					*fifo_credit += *borrowed;
+					*borrowed = 0;
+				}
+			}
+		}
+	}
+
+	fws->fifo_credit_map |= 1 << fifo;
+	fws->fifo_credit[fifo] += credits;
+}
+
+static void brcmf_fws_schedule_deq(struct brcmf_fws_info *fws)
+{
+	/* only schedule dequeue when there are credits for delayed traffic */
+	if (fws->fifo_credit_map & fws->fifo_delay_map)
+		queue_work(fws->fws_wq, &fws->fws_dequeue_work);
+}
+
+static void brcmf_skb_pick_up_credit(struct brcmf_fws_info *fws, int fifo,
+				     struct sk_buff *p)
+{
+	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(p)->mac;
+
+	if (brcmf_skbcb(p)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) {
+		if (fws->fcmode != BRCMF_FWS_FCMODE_IMPLIED_CREDIT)
+			return;
+		brcmf_fws_return_credits(fws, fifo, 1);
+	} else {
+		/*
+		 * if this packet did not count against FIFO credit, it
+		 * must have taken a requested_credit from the destination
+		 * entry (for pspoll etc.)
+		 */
+		if (!brcmf_skb_if_flags_get_field(p, REQUESTED))
+			entry->requested_credit++;
+	}
+	brcmf_fws_schedule_deq(fws);
+}
+
+static int brcmf_fws_enq(struct brcmf_fws_info *fws,
+			 enum brcmf_fws_skb_state state, int fifo,
+			 struct sk_buff *p)
+{
+	int prec = 2 * fifo;
+	u32 *qfull_stat = &fws->stats.delayq_full_error;
+
+	struct brcmf_fws_mac_descriptor *entry;
+
+	entry = brcmf_skbcb(p)->mac;
+	if (entry == NULL) {
+		brcmf_err("no mac descriptor found for skb %p\n", p);
+		return -ENOENT;
+	}
+
+	brcmf_dbg(TRACE, "enter: ea=%pM, qlen=%d\n", entry->ea, entry->psq.len);
+	if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED) {
+		prec += 1;
+		qfull_stat = &fws->stats.supprq_full_error;
+	}
+
+	if (brcmu_pktq_penq(&entry->psq, prec, p) == NULL) {
+		*qfull_stat += 1;
+		return -ENFILE;
+	}
+
+	/* increment total enqueued packet count */
+	fws->fifo_delay_map |= 1 << fifo;
+	fws->fifo_enqpkt[fifo]++;
+
+	/* update the sk_buff state */
+	brcmf_skbcb(p)->state = state;
+	if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED)
+		entry->suppress_count++;
+
+	/*
+	 * A packet has been pushed so update traffic
+	 * availability bitmap, if applicable
+	 */
+	brcmf_fws_tim_update(fws, entry, fifo);
+	brcmf_fws_flow_control_check(fws, &entry->psq,
+				     brcmf_skb_if_flags_get_field(p, INDEX));
+	return 0;
+}
+
+static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
+{
+	struct brcmf_fws_mac_descriptor *table;
+	struct brcmf_fws_mac_descriptor *entry;
+	struct sk_buff *p;
+	int use_credit = 1;
+	int num_nodes;
+	int node_pos;
+	int prec_out;
+	int pmsk;
+	int i;
+
+	table = (struct brcmf_fws_mac_descriptor *)&fws->desc;
+	num_nodes = sizeof(fws->desc) / sizeof(struct brcmf_fws_mac_descriptor);
+	node_pos = fws->deq_node_pos[fifo];
+
+	for (i = 0; i < num_nodes; i++) {
+		entry = &table[(node_pos + i) % num_nodes];
+		if (!entry->occupied ||
+		    brcmf_fws_mac_desc_closed(fws, entry, fifo))
+			continue;
+
+		if (entry->suppressed)
+			pmsk = 2;
+		else
+			pmsk = 3;
+		p = brcmu_pktq_mdeq(&entry->psq, pmsk << (fifo * 2), &prec_out);
+		if (p == NULL) {
+			if (entry->suppressed) {
+				if (entry->suppr_transit_count >
+				    entry->suppress_count)
+					return NULL;
+				entry->suppressed = false;
+				p = brcmu_pktq_mdeq(&entry->psq,
+						    1 << (fifo * 2), &prec_out);
+			}
+		}
+		if  (p == NULL)
+			continue;
+
+		/* did the packet come from suppress sub-queue? */
+		if (entry->requested_credit > 0) {
+			entry->requested_credit--;
+			/*
+			 * if the packet was pulled out while destination is in
+			 * closed state but had a non-zero packets requested,
+			 * then this should not count against the FIFO credit.
+			 * That is due to the fact that the firmware will
+			 * most likely hold onto this packet until a suitable
+			 * time later to push it to the appropriate AC FIFO.
+			 */
+			if (entry->state == BRCMF_FWS_STATE_CLOSE)
+				use_credit = 0;
+		} else if (entry->requested_packet > 0) {
+			entry->requested_packet--;
+			brcmf_skb_if_flags_set_field(p, REQUESTED, 1);
+			if (entry->state == BRCMF_FWS_STATE_CLOSE)
+				use_credit = 0;
+		}
+		brcmf_skb_if_flags_set_field(p, CREDITCHECK, use_credit);
+
+		/* move dequeue position to ensure fair round-robin */
+		fws->deq_node_pos[fifo] = (node_pos + i + 1) % num_nodes;
+		brcmf_fws_flow_control_check(fws, &entry->psq,
+					     brcmf_skb_if_flags_get_field(p,
+									  INDEX)
+					     );
+		/*
+		 * A packet has been picked up, update traffic
+		 * availability bitmap, if applicable
+		 */
+		brcmf_fws_tim_update(fws, entry, fifo);
+
+		/*
+		 * decrement total enqueued fifo packets and
+		 * clear delay bitmap if done.
+		 */
+		fws->fifo_enqpkt[fifo]--;
+		if (fws->fifo_enqpkt[fifo] == 0)
+			fws->fifo_delay_map &= ~(1 << fifo);
+		goto done;
+	}
+	p = NULL;
+done:
+	brcmf_dbg(TRACE, "exit: fifo %d skb %p\n", fifo, p);
+	return p;
+}
+
+static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
+					 struct sk_buff *skb, u32 genbit)
+{
+	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
+	u32 hslot;
+	int ret;
+
+	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
+
+	/* this packet was suppressed */
+	if (!entry->suppressed || entry->generation != genbit) {
+		entry->suppressed = true;
+		entry->suppress_count = brcmu_pktq_mlen(&entry->psq,
+							1 << (fifo * 2 + 1));
+		entry->suppr_transit_count = entry->transit_count;
+	}
+
+	entry->generation = genbit;
+
+	ret = brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_SUPPRESSED, fifo, skb);
+	if (ret != 0) {
+		/* suppress q is full, drop this packet */
+		brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &skb,
+					true);
+	} else {
+		/*
+		 * Mark suppressed to avoid a double free during
+		 * wlfc cleanup
+		 */
+		brcmf_fws_hanger_mark_suppressed(&fws->hanger, hslot,
+						 genbit);
+		entry->suppress_count++;
+	}
+
+	return ret;
+}
+
+static int
+brcmf_fws_txstatus_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
+			   u32 genbit)
+{
+	u32 fifo;
+	int ret;
+	bool remove_from_hanger = true;
+	struct sk_buff *skb;
+	struct brcmf_fws_mac_descriptor *entry = NULL;
+
+	brcmf_dbg(TRACE, "status: flags=0x%X, hslot=%d\n",
+		  flags, hslot);
+
+	if (flags == BRCMF_FWS_TXSTATUS_DISCARD)
+		fws->stats.txs_discard++;
+	else if (flags == BRCMF_FWS_TXSTATUS_CORE_SUPPRESS) {
+		fws->stats.txs_supp_core++;
+		remove_from_hanger = false;
+	} else if (flags == BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS) {
+		fws->stats.txs_supp_ps++;
+		remove_from_hanger = false;
+	} else if (flags == BRCMF_FWS_TXSTATUS_FW_TOSSED)
+		fws->stats.txs_tossed++;
+	else
+		brcmf_err("unexpected txstatus\n");
+
+	ret = brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &skb,
+				      remove_from_hanger);
+	if (ret != 0) {
+		brcmf_err("no packet in hanger slot: hslot=%d\n", hslot);
+		return ret;
+	}
+
+	entry = brcmf_skbcb(skb)->mac;
+	if (WARN_ON(!entry)) {
+		brcmu_pkt_buf_free_skb(skb);
+		return -EINVAL;
+	}
+
+	/* pick up the implicit credit from this packet */
+	fifo = brcmf_skb_htod_tag_get_field(skb, FIFO);
+	brcmf_skb_pick_up_credit(fws, fifo, skb);
+
+	if (!remove_from_hanger)
+		ret = brcmf_fws_txstatus_suppressed(fws, fifo, skb, genbit);
+
+	if (remove_from_hanger || ret) {
+		entry->transit_count--;
+		if (entry->suppressed)
+			entry->suppr_transit_count--;
+
+		brcmf_txfinalize(fws->drvr, skb, true);
+	}
+	return 0;
+}
+
+static int brcmf_fws_fifocreditback_indicate(struct brcmf_fws_info *fws,
+					     u8 *data)
+{
+	int i;
+
+	if (fws->fcmode != BRCMF_FWS_FCMODE_EXPLICIT_CREDIT) {
+		brcmf_dbg(INFO, "ignored\n");
+		return BRCMF_FWS_RET_OK_NOSCHEDULE;
+	}
+
+	brcmf_dbg(TRACE, "enter: data %pM\n", data);
+	for (i = 0; i < BRCMF_FWS_FIFO_COUNT; i++)
+		brcmf_fws_return_credits(fws, i, data[i]);
+
+	brcmf_dbg(INFO, "map: credit %x delay %x\n", fws->fifo_credit_map,
+		  fws->fifo_delay_map);
+	return BRCMF_FWS_RET_OK_SCHEDULE;
+}
+
+static int brcmf_fws_txstatus_indicate(struct brcmf_fws_info *fws, u8 *data)
+{
+	__le32 status_le;
+	u32 status;
+	u32 hslot;
+	u32 genbit;
+	u8 flags;
+
+	fws->stats.txs_indicate++;
+	memcpy(&status_le, data, sizeof(status_le));
+	status = le32_to_cpu(status_le);
+	flags = brcmf_txstatus_get_field(status, FLAGS);
+	hslot = brcmf_txstatus_get_field(status, HSLOT);
+	genbit = brcmf_txstatus_get_field(status, GENERATION);
+
+	return brcmf_fws_txstatus_process(fws, flags, hslot, genbit);
+}
+
+static int brcmf_fws_dbg_seqnum_check(struct brcmf_fws_info *fws, u8 *data)
+{
+	__le32 timestamp;
+
+	memcpy(&timestamp, &data[2], sizeof(timestamp));
+	brcmf_dbg(INFO, "received: seq %d, timestamp %d\n", data[1],
+		  le32_to_cpu(timestamp));
+	return 0;
+}
+
+/* using macro so sparse checking does not complain
+ * about locking imbalance.
+ */
+#define brcmf_fws_lock(drvr, flags)				\
+do {								\
+	flags = 0;						\
+	spin_lock_irqsave(&((drvr)->fws_spinlock), (flags));	\
+} while (0)
+
+/* using macro so sparse checking does not complain
+ * about locking imbalance.
+ */
+#define brcmf_fws_unlock(drvr, flags) \
+	spin_unlock_irqrestore(&((drvr)->fws_spinlock), (flags))
+
+static int brcmf_fws_notify_credit_map(struct brcmf_if *ifp,
+				       const struct brcmf_event_msg *e,
+				       void *data)
+{
+	struct brcmf_fws_info *fws = ifp->drvr->fws;
+	int i;
+	ulong flags;
+	u8 *credits = data;
+
+	if (e->datalen < BRCMF_FWS_FIFO_COUNT) {
+		brcmf_err("event payload too small (%d)\n", e->datalen);
+		return -EINVAL;
+	}
+
+	brcmf_dbg(TRACE, "enter: credits %pM\n", credits);
+	brcmf_fws_lock(ifp->drvr, flags);
+	for (i = 0; i < ARRAY_SIZE(fws->fifo_credit); i++) {
+		if (*credits)
+			fws->fifo_credit_map |= 1 << i;
+		else
+			fws->fifo_credit_map &= ~(1 << i);
+		fws->fifo_credit[i] = *credits++;
+	}
+	brcmf_fws_schedule_deq(fws);
+	brcmf_fws_unlock(ifp->drvr, flags);
+	return 0;
+}
+
+int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
+		      struct sk_buff *skb)
+{
+	struct brcmf_fws_info *fws = drvr->fws;
+	ulong flags;
+	u8 *signal_data;
+	s16 data_len;
+	u8 type;
+	u8 len;
+	u8 *data;
+	s32 status;
+	s32 err;
+
+	brcmf_dbg(TRACE, "enter: ifidx %d, skblen %u, sig %d\n",
+		  ifidx, skb->len, signal_len);
+
+	WARN_ON(signal_len > skb->len);
+
+	/* if flow control disabled, skip to packet data and leave */
+	if (!signal_len || !drvr->fw_signals) {
+		skb_pull(skb, signal_len);
+		return 0;
+	}
+
+	/* lock during tlv parsing */
+	brcmf_fws_lock(drvr, flags);
+
+	fws->stats.header_pulls++;
+	data_len = signal_len;
+	signal_data = skb->data;
+
+	status = BRCMF_FWS_RET_OK_NOSCHEDULE;
+	while (data_len > 0) {
+		/* extract tlv info */
+		type = signal_data[0];
+
+		/* FILLER type is actually not a TLV, but
+		 * a single byte that can be skipped.
+		 */
+		if (type == BRCMF_FWS_TYPE_FILLER) {
+			signal_data += 1;
+			data_len -= 1;
+			continue;
+		}
+		len = signal_data[1];
+		data = signal_data + 2;
+
+		brcmf_dbg(INFO, "tlv type=%d (%s), len=%d, data[0]=%d\n", type,
+			  brcmf_fws_get_tlv_name(type), len, *data);
+
+		/* abort parsing when length invalid */
+		if (data_len < len + 2)
+			break;
+
+		if (len != brcmf_fws_get_tlv_len(fws, type))
+			break;
+
+		err = BRCMF_FWS_RET_OK_NOSCHEDULE;
+		switch (type) {
+		case BRCMF_FWS_TYPE_HOST_REORDER_RXPKTS:
+		case BRCMF_FWS_TYPE_COMP_TXSTATUS:
+			break;
+		case BRCMF_FWS_TYPE_MACDESC_ADD:
+		case BRCMF_FWS_TYPE_MACDESC_DEL:
+			brcmf_fws_macdesc_indicate(fws, type, data);
+			break;
+		case BRCMF_FWS_TYPE_MAC_OPEN:
+		case BRCMF_FWS_TYPE_MAC_CLOSE:
+			err = brcmf_fws_macdesc_state_indicate(fws, type, data);
+			break;
+		case BRCMF_FWS_TYPE_INTERFACE_OPEN:
+		case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
+			err = brcmf_fws_interface_state_indicate(fws, type,
+								 data);
+			break;
+		case BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT:
+		case BRCMF_FWS_TYPE_MAC_REQUEST_PACKET:
+			err = brcmf_fws_request_indicate(fws, type, data);
+			break;
+		case BRCMF_FWS_TYPE_TXSTATUS:
+			brcmf_fws_txstatus_indicate(fws, data);
+			break;
+		case BRCMF_FWS_TYPE_FIFO_CREDITBACK:
+			err = brcmf_fws_fifocreditback_indicate(fws, data);
+			break;
+		case BRCMF_FWS_TYPE_RSSI:
+			brcmf_fws_rssi_indicate(fws, *data);
+			break;
+		case BRCMF_FWS_TYPE_TRANS_ID:
+			brcmf_fws_dbg_seqnum_check(fws, data);
+			break;
+		case BRCMF_FWS_TYPE_PKTTAG:
+		case BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP:
+		default:
+			fws->stats.tlv_invalid_type++;
+			break;
+		}
+		if (err == BRCMF_FWS_RET_OK_SCHEDULE)
+			status = BRCMF_FWS_RET_OK_SCHEDULE;
+		signal_data += len + 2;
+		data_len -= len + 2;
+	}
+
+	if (data_len != 0)
+		fws->stats.tlv_parse_failed++;
+
+	if (status == BRCMF_FWS_RET_OK_SCHEDULE)
+		brcmf_fws_schedule_deq(fws);
+
+	/* signalling processing result does
+	 * not affect the actual ethernet packet.
+	 */
+	skb_pull(skb, signal_len);
+
+	/* this may be a signal-only packet
+	 */
+	if (skb->len == 0)
+		fws->stats.header_only_pkt++;
+
+	brcmf_fws_unlock(drvr, flags);
+	return 0;
+}
+
+static int brcmf_fws_hdrpush(struct brcmf_fws_info *fws, struct sk_buff *skb)
+{
+	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
+	u8 *wlh;
+	u16 data_offset = 0;
+	u8 fillers;
+	__le32 pkttag = cpu_to_le32(brcmf_skbcb(skb)->htod);
+
+	brcmf_dbg(TRACE, "enter: ea=%pM, ifidx=%u, pkttag=0x%08X\n",
+		  entry->ea, entry->interface_id, le32_to_cpu(pkttag));
+	if (entry->send_tim_signal)
+		data_offset += 2 + BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
+
+	/* +2 is for Type[1] and Len[1] in TLV, plus TIM signal */
+	data_offset += 2 + BRCMF_FWS_TYPE_PKTTAG_LEN;
+	fillers = round_up(data_offset, 4) - data_offset;
+	data_offset += fillers;
+
+	skb_push(skb, data_offset);
+	wlh = skb->data;
+
+	wlh[0] = BRCMF_FWS_TYPE_PKTTAG;
+	wlh[1] = BRCMF_FWS_TYPE_PKTTAG_LEN;
+	memcpy(&wlh[2], &pkttag, sizeof(pkttag));
+	wlh += BRCMF_FWS_TYPE_PKTTAG_LEN + 2;
+
+	if (entry->send_tim_signal) {
+		entry->send_tim_signal = 0;
+		wlh[0] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP;
+		wlh[1] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
+		wlh[2] = entry->mac_handle;
+		wlh[3] = entry->traffic_pending_bmp;
+		wlh += BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2;
+		entry->traffic_lastreported_bmp = entry->traffic_pending_bmp;
+	}
+	if (fillers)
+		memset(wlh, BRCMF_FWS_TYPE_FILLER, fillers);
+
+	brcmf_proto_hdrpush(fws->drvr, brcmf_skb_if_flags_get_field(skb, INDEX),
+			    data_offset >> 2, skb);
+	return 0;
+}
+
+static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
+				   struct sk_buff *p)
+{
+	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(p);
+	struct brcmf_fws_mac_descriptor *entry = skcb->mac;
+	int rc = 0;
+	bool header_needed;
+	int hslot = BRCMF_FWS_HANGER_MAXITEMS;
+	u8 free_ctr;
+	u8 ifidx;
+	u8 flags;
+
+	header_needed = skcb->state != BRCMF_FWS_SKBSTATE_SUPPRESSED;
+
+	if (header_needed) {
+		/* obtaining free slot may fail, but that will be caught
+		 * by the hanger push. This assures the packet has a BDC
+		 * header upon return.
+		 */
+		hslot = brcmf_fws_hanger_get_free_slot(&fws->hanger);
+		free_ctr = entry->seq[fifo];
+		brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
+		brcmf_skb_htod_tag_set_field(p, FREERUN, free_ctr);
+		brcmf_skb_htod_tag_set_field(p, GENERATION, 1);
+		entry->transit_count++;
+	}
+	brcmf_skb_if_flags_set_field(p, TRANSMIT, 1);
+	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
+
+	flags = BRCMF_FWS_HTOD_FLAG_PKTFROMHOST;
+	if (!(skcb->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)) {
+		/*
+		Indicate that this packet is being sent in response to an
+		explicit request from the firmware side.
+		*/
+		flags |= BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED;
+	}
+	brcmf_skb_htod_tag_set_field(p, FLAGS, flags);
+	if (header_needed) {
+		brcmf_fws_hdrpush(fws, p);
+		rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
+		if (rc)
+			brcmf_err("hanger push failed: rc=%d\n", rc);
+	} else {
+		int gen;
+
+		/* remove old header */
+		rc = brcmf_proto_hdrpull(fws->drvr, false, &ifidx, p);
+		if (rc == 0) {
+			hslot = brcmf_skb_htod_tag_get_field(p, HSLOT);
+			brcmf_fws_hanger_get_genbit(&fws->hanger, p,
+						    hslot, &gen);
+			brcmf_skb_htod_tag_set_field(p, GENERATION, gen);
+
+			/* push new header */
+			brcmf_fws_hdrpush(fws, p);
+		}
+	}
+
+	return rc;
+}
+
+static void
+brcmf_fws_rollback_toq(struct brcmf_fws_info *fws, struct sk_buff *skb)
+{
+	/*
+	put the packet back to the head of queue
+
+	- suppressed packet goes back to suppress sub-queue
+	- pull out the header, if new or delayed packet
+
+	Note: hslot is used only when header removal is done.
+	*/
+	struct brcmf_fws_mac_descriptor *entry;
+	enum brcmf_fws_skb_state state;
+	struct sk_buff *pktout;
+	int rc = 0;
+	int fifo;
+	int hslot;
+	u8 ifidx;
+
+	fifo = brcmf_skb_if_flags_get_field(skb, FIFO);
+	state = brcmf_skbcb(skb)->state;
+	entry = brcmf_skbcb(skb)->mac;
+
+	if (entry != NULL) {
+		if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED) {
+			/* wl-header is saved for suppressed packets */
+			pktout = brcmu_pktq_penq_head(&entry->psq, 2 * fifo + 1,
+						      skb);
+			if (pktout == NULL) {
+				brcmf_err("suppress queue full\n");
+				rc = -ENOSPC;
+			}
+		} else {
+			hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
+
+			/* remove header first */
+			rc = brcmf_proto_hdrpull(fws->drvr, false, &ifidx, skb);
+			if (rc) {
+				brcmf_err("header removal failed\n");
+				/* free the hanger slot */
+				brcmf_fws_hanger_poppkt(&fws->hanger, hslot,
+							&pktout, true);
+				rc = -EINVAL;
+				goto fail;
+			}
+
+			/* delay-q packets are going to delay-q */
+			pktout = brcmu_pktq_penq_head(&entry->psq,
+						      2 * fifo, skb);
+			if (pktout == NULL) {
+				brcmf_err("delay queue full\n");
+				rc = -ENOSPC;
+			}
+
+			/* free the hanger slot */
+			brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &pktout,
+						true);
+
+			/* decrement sequence count */
+			entry->seq[fifo]--;
+		}
+		/*
+		if this packet did not count against FIFO credit, it must have
+		taken a requested_credit from the firmware (for pspoll etc.)
+		*/
+		if (!(brcmf_skbcb(skb)->if_flags &
+		      BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK))
+			entry->requested_credit++;
+	} else {
+		brcmf_err("no mac entry linked\n");
+		rc = -ENOENT;
+	}
+
+
+fail:
+	if (rc) {
+		brcmf_txfinalize(fws->drvr, skb, false);
+		fws->stats.rollback_failed++;
+	} else
+		fws->stats.rollback_success++;
+}
+
+static int brcmf_fws_borrow_credit(struct brcmf_fws_info *fws)
+{
+	int lender_ac;
+
+	if (time_after(fws->borrow_defer_timestamp, jiffies))
+		return -ENAVAIL;
+
+	for (lender_ac = 0; lender_ac <= BRCMF_FWS_FIFO_AC_VO; lender_ac++) {
+		if (fws->fifo_credit[lender_ac]) {
+			fws->credits_borrowed[lender_ac]++;
+			fws->fifo_credit[lender_ac]--;
+			if (fws->fifo_credit[lender_ac] == 0)
+				fws->fifo_credit_map &= ~(1 << lender_ac);
+			brcmf_dbg(TRACE, "borrow credit from: %d\n", lender_ac);
+			return 0;
+		}
+	}
+	return -ENAVAIL;
+}
+
+static int brcmf_fws_consume_credit(struct brcmf_fws_info *fws, int fifo,
+				    struct sk_buff *skb)
+{
+	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
+	int *credit = &fws->fifo_credit[fifo];
+	int use_credit = 1;
+
+	brcmf_dbg(TRACE, "enter: ac=%d, credits=%d\n", fifo, *credit);
+
+	if (entry->requested_credit > 0) {
+		/*
+		 * if the packet was pulled out while destination is in
+		 * closed state but had a non-zero packets requested,
+		 * then this should not count against the FIFO credit.
+		 * That is due to the fact that the firmware will
+		 * most likely hold onto this packet until a suitable
+		 * time later to push it to the appropriate AC FIFO.
+		 */
+		entry->requested_credit--;
+		if (entry->state == BRCMF_FWS_STATE_CLOSE)
+			use_credit = 0;
+	} else if (entry->requested_packet > 0) {
+		entry->requested_packet--;
+		brcmf_skb_if_flags_set_field(skb, REQUESTED, 1);
+		if (entry->state == BRCMF_FWS_STATE_CLOSE)
+			use_credit = 0;
+	}
+	brcmf_skb_if_flags_set_field(skb, CREDITCHECK, use_credit);
+	if (!use_credit) {
+		brcmf_dbg(TRACE, "exit: no creditcheck set\n");
+		return 0;
+	}
+
+	if (fifo != BRCMF_FWS_FIFO_AC_BE)
+		fws->borrow_defer_timestamp = jiffies +
+					      BRCMF_FWS_BORROW_DEFER_PERIOD;
+
+	if (!(*credit)) {
+		/* Try to borrow a credit from other queue */
+		if (fifo == BRCMF_FWS_FIFO_AC_BE &&
+		    brcmf_fws_borrow_credit(fws) == 0)
+			return 0;
+
+		brcmf_dbg(TRACE, "exit: ac=%d, credits depleted\n", fifo);
+		return -ENAVAIL;
+	}
+	(*credit)--;
+	if (!(*credit))
+		fws->fifo_credit_map &= ~(1 << fifo);
+	brcmf_dbg(TRACE, "exit: ac=%d, credits=%d\n", fifo, *credit);
+	return 0;
+}
+
+static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
+				struct sk_buff *skb)
+{
+	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(skb);
+	struct brcmf_fws_mac_descriptor *entry;
+	struct brcmf_bus *bus = fws->drvr->bus_if;
+	int rc;
+
+	entry = skcb->mac;
+	if (IS_ERR(entry))
+		return PTR_ERR(entry);
+
+	rc = brcmf_fws_precommit_skb(fws, fifo, skb);
+	if (rc < 0) {
+		fws->stats.generic_error++;
+		goto rollback;
+	}
+
+	rc = brcmf_bus_txdata(bus, skb);
+	if (rc < 0)
+		goto rollback;
+
+	entry->seq[fifo]++;
+	fws->stats.pkt2bus++;
+	if (brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) {
+		fws->stats.send_pkts[fifo]++;
+		fws->stats.fifo_credits_sent[fifo]++;
+	}
+
+	return rc;
+
+rollback:
+	brcmf_fws_rollback_toq(fws, skb);
+	return rc;
+}
+
+int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
+{
+	struct brcmf_pub *drvr = ifp->drvr;
+	struct brcmf_fws_info *fws = drvr->fws;
+	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(skb);
+	struct ethhdr *eh = (struct ethhdr *)(skb->data);
+	ulong flags;
+	int fifo = BRCMF_FWS_FIFO_BCMC;
+	bool multicast = is_multicast_ether_addr(eh->h_dest);
+
+	/* determine the priority */
+	if (!skb->priority)
+		skb->priority = cfg80211_classify8021d(skb);
+
+	drvr->tx_multicast += !!multicast;
+	if (ntohs(eh->h_proto) == ETH_P_PAE)
+		atomic_inc(&ifp->pend_8021x_cnt);
+
+	if (!brcmf_fws_fc_active(fws)) {
+		/* If the protocol uses a data header, apply it */
+		brcmf_proto_hdrpush(drvr, ifp->ifidx, 0, skb);
+
+		/* Use bus module to send data frame */
+		return brcmf_bus_txdata(drvr->bus_if, skb);
+	}
+
+	/* set control buffer information */
+	skcb->if_flags = 0;
+	skcb->mac = brcmf_fws_find_mac_desc(fws, ifp, eh->h_dest);
+	skcb->state = BRCMF_FWS_SKBSTATE_NEW;
+	brcmf_skb_if_flags_set_field(skb, INDEX, ifp->ifidx);
+	if (!multicast)
+		fifo = brcmf_fws_prio2fifo[skb->priority];
+	brcmf_skb_if_flags_set_field(skb, FIFO, fifo);
+
+	brcmf_dbg(TRACE, "ea=%pM, multi=%d, fifo=%d\n", eh->h_dest,
+		  multicast, fifo);
+
+	brcmf_fws_lock(drvr, flags);
+	if (skcb->mac->suppressed ||
+	    brcmf_fws_mac_desc_closed(fws, skcb->mac, fifo) ||
+	    brcmu_pktq_mlen(&skcb->mac->psq, 3 << (fifo * 2)) ||
+	    (!multicast &&
+	     brcmf_fws_consume_credit(fws, fifo, skb) < 0)) {
+		/* enqueue the packet in delayQ */
+		drvr->fws->fifo_delay_map |= 1 << fifo;
+		brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
+	} else {
+		if (brcmf_fws_commit_skb(fws, fifo, skb))
+			if (!multicast)
+				brcmf_skb_pick_up_credit(fws, fifo, skb);
+	}
+	brcmf_fws_unlock(drvr, flags);
+	return 0;
+}
+
+void brcmf_fws_reset_interface(struct brcmf_if *ifp)
+{
+	struct brcmf_fws_mac_descriptor *entry = ifp->fws_desc;
+
+	brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx);
+	if (!entry)
+		return;
+
+	brcmf_fws_init_mac_descriptor(entry, ifp->mac_addr, ifp->ifidx);
+}
+
+void brcmf_fws_add_interface(struct brcmf_if *ifp)
+{
+	struct brcmf_fws_info *fws = ifp->drvr->fws;
+	struct brcmf_fws_mac_descriptor *entry;
+
+	brcmf_dbg(TRACE, "enter: idx=%d, mac=%pM\n",
+		  ifp->bssidx, ifp->mac_addr);
+	if (!ifp->ndev || !ifp->drvr->fw_signals)
+		return;
+
+	entry = &fws->desc.iface[ifp->ifidx];
+	ifp->fws_desc = entry;
+	brcmf_fws_init_mac_descriptor(entry, ifp->mac_addr, ifp->ifidx);
+	brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
+			BRCMF_FWS_PSQ_LEN);
+}
+
+void brcmf_fws_del_interface(struct brcmf_if *ifp)
+{
+	struct brcmf_fws_mac_descriptor *entry = ifp->fws_desc;
+	ulong flags;
+
+	brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx);
+	if (!entry)
+		return;
+
+	brcmf_fws_lock(ifp->drvr, flags);
+	ifp->fws_desc = NULL;
+	brcmf_fws_clear_mac_descriptor(entry);
+	brcmf_fws_cleanup(ifp->drvr->fws, ifp->ifidx);
+	brcmf_fws_unlock(ifp->drvr, flags);
+}
+
+static void brcmf_fws_dequeue_worker(struct work_struct *worker)
+{
+	struct brcmf_fws_info *fws;
+	struct sk_buff *skb;
+	ulong flags;
+	int fifo;
+	int credit;
+
+	fws = container_of(worker, struct brcmf_fws_info, fws_dequeue_work);
+
+	brcmf_dbg(TRACE, "enter: fws=%p\n", fws);
+	brcmf_fws_lock(fws->drvr, flags);
+	for (fifo = NL80211_NUM_ACS; fifo >= 0; fifo--) {
+		brcmf_dbg(TRACE, "fifo %d credit %d\n", fifo,
+			  fws->fifo_credit[fifo]);
+		for (credit = 0; credit < fws->fifo_credit[fifo]; /* nop */) {
+			skb = brcmf_fws_deq(fws, fifo);
+			if (!skb || brcmf_fws_commit_skb(fws, fifo, skb))
+				break;
+			if (brcmf_skbcb(skb)->if_flags &
+			    BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
+				credit++;
+		}
+		if ((fifo == BRCMF_FWS_FIFO_AC_BE) &&
+		    (credit == fws->fifo_credit[fifo])) {
+			fws->fifo_credit[fifo] -= credit;
+			while (brcmf_fws_borrow_credit(fws) == 0) {
+				skb = brcmf_fws_deq(fws, fifo);
+				if (!skb) {
+					brcmf_fws_return_credits(fws, fifo, 1);
+					break;
+				}
+				if (brcmf_fws_commit_skb(fws, fifo, skb)) {
+					brcmf_fws_return_credits(fws, fifo, 1);
+					break;
+				}
+			}
+		} else {
+			fws->fifo_credit[fifo] -= credit;
+		}
+	}
+	brcmf_fws_unlock(fws->drvr, flags);
+}
+
+int brcmf_fws_init(struct brcmf_pub *drvr)
+{
+	u32 tlv = BRCMF_FWS_FLAGS_RSSI_SIGNALS;
+	int rc;
+
+	if (!drvr->fw_signals)
+		return 0;
+
+	spin_lock_init(&drvr->fws_spinlock);
+
+	drvr->fws = kzalloc(sizeof(*(drvr->fws)), GFP_KERNEL);
+	if (!drvr->fws) {
+		rc = -ENOMEM;
+		goto fail;
+	}
+
+	/* set linkage back */
+	drvr->fws->drvr = drvr;
+	drvr->fws->fcmode = fcmode;
+
+	drvr->fws->fws_wq = create_singlethread_workqueue("brcmf_fws_wq");
+	if (drvr->fws->fws_wq == NULL) {
+		brcmf_err("workqueue creation failed\n");
+		rc = -EBADF;
+		goto fail;
+	}
+	INIT_WORK(&drvr->fws->fws_dequeue_work, brcmf_fws_dequeue_worker);
+
+	/* enable firmware signalling if fcmode active */
+	if (drvr->fws->fcmode != BRCMF_FWS_FCMODE_NONE)
+		tlv |= BRCMF_FWS_FLAGS_XONXOFF_SIGNALS |
+		       BRCMF_FWS_FLAGS_CREDIT_STATUS_SIGNALS |
+		       BRCMF_FWS_FLAGS_HOST_PROPTXSTATUS_ACTIVE;
+
+	rc = brcmf_fweh_register(drvr, BRCMF_E_FIFO_CREDIT_MAP,
+				 brcmf_fws_notify_credit_map);
+	if (rc < 0) {
+		brcmf_err("register credit map handler failed\n");
+		goto fail;
+	}
+
+	/* setting the iovar may fail if feature is unsupported
+	 * so leave the rc as is so driver initialization can
+	 * continue.
+	 */
+	if (brcmf_fil_iovar_int_set(drvr->iflist[0], "tlv", tlv)) {
+		brcmf_err("failed to set bdcv2 tlv signaling\n");
+		goto fail_event;
+	}
+
+	brcmf_fws_hanger_init(&drvr->fws->hanger);
+	brcmf_fws_init_mac_descriptor(&drvr->fws->desc.other, NULL, 0);
+	brcmu_pktq_init(&drvr->fws->desc.other.psq, BRCMF_FWS_PSQ_PREC_COUNT,
+			BRCMF_FWS_PSQ_LEN);
+
+	/* create debugfs file for statistics */
+	brcmf_debugfs_create_fws_stats(drvr, &drvr->fws->stats);
+
+	/* TODO: remove upon feature delivery */
+	brcmf_err("%s bdcv2 tlv signaling [%x]\n",
+		  drvr->fw_signals ? "enabled" : "disabled", tlv);
+	return 0;
+
+fail_event:
+	brcmf_fweh_unregister(drvr, BRCMF_E_FIFO_CREDIT_MAP);
+fail:
+	brcmf_fws_deinit(drvr);
+	return rc;
+}
+
+void brcmf_fws_deinit(struct brcmf_pub *drvr)
+{
+	struct brcmf_fws_info *fws = drvr->fws;
+	ulong flags;
+
+	if (!fws)
+		return;
+
+	/* disable firmware signalling entirely
+	 * to avoid using the workqueue.
+	 */
+	drvr->fw_signals = false;
+
+	if (drvr->fws->fws_wq)
+		destroy_workqueue(drvr->fws->fws_wq);
+
+	/* cleanup */
+	brcmf_fws_lock(drvr, flags);
+	brcmf_fws_cleanup(fws, -1);
+	drvr->fws = NULL;
+	brcmf_fws_unlock(drvr, flags);
+
+	/* free top structure */
+	kfree(fws);
+}
+
+bool brcmf_fws_fc_active(struct brcmf_fws_info *fws)
+{
+	if (!fws)
+		return false;
+
+	brcmf_dbg(TRACE, "enter: mode=%d\n", fws->fcmode);
+	return fws->fcmode != BRCMF_FWS_FCMODE_NONE;
+}
+
+void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
+{
+	ulong flags;
+
+	brcmf_fws_lock(fws->drvr, flags);
+	brcmf_fws_txstatus_process(fws, BRCMF_FWS_TXSTATUS_FW_TOSSED,
+				   brcmf_skb_htod_tag_get_field(skb, HSLOT), 0);
+	/* the packet never reached firmware so reclaim credit */
+	if (fws->fcmode == BRCMF_FWS_FCMODE_EXPLICIT_CREDIT &&
+	    brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) {
+		brcmf_fws_return_credits(fws,
+					 brcmf_skb_htod_tag_get_field(skb,
+								      FIFO),
+					 1);
+		brcmf_fws_schedule_deq(fws);
+	}
+	brcmf_fws_unlock(fws->drvr, flags);
+}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h
new file mode 100644
index 000000000000..fbe483d23752
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2012 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#ifndef FWSIGNAL_H_
+#define FWSIGNAL_H_
+
+int brcmf_fws_init(struct brcmf_pub *drvr);
+void brcmf_fws_deinit(struct brcmf_pub *drvr);
+bool brcmf_fws_fc_active(struct brcmf_fws_info *fws);
+int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
+		      struct sk_buff *skb);
+int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb);
+
+void brcmf_fws_reset_interface(struct brcmf_if *ifp);
+void brcmf_fws_add_interface(struct brcmf_if *ifp);
+void brcmf_fws_del_interface(struct brcmf_if *ifp);
+void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb);
+
+#endif /* FWSIGNAL_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index 4166e642068b..2b90da0d85f3 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -15,6 +15,7 @@
  */
 #include <linux/slab.h>
 #include <linux/netdevice.h>
+#include <linux/etherdevice.h>
 #include <net/cfg80211.h>
 
 #include <brcmu_wifi.h>
@@ -423,29 +424,6 @@ static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len)
 
 
 /**
- * brcmf_p2p_chnr_to_chspec() - convert channel number to chanspec.
- *
- * @channel: channel number
- */
-static u16 brcmf_p2p_chnr_to_chspec(u16 channel)
-{
-	u16 chanspec;
-
-	chanspec = channel & WL_CHANSPEC_CHAN_MASK;
-
-	if (channel <= CH_MAX_2G_CHANNEL)
-		chanspec |= WL_CHANSPEC_BAND_2G;
-	else
-		chanspec |= WL_CHANSPEC_BAND_5G;
-
-	chanspec |= WL_CHANSPEC_BW_20;
-	chanspec |= WL_CHANSPEC_CTL_SB_NONE;
-
-	return chanspec;
-}
-
-
-/**
  * brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation.
  *
  * @ifp: ifp to use for iovars (primary).
@@ -455,7 +433,9 @@ static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac)
 {
 	s32 ret = 0;
 
+	brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
 	brcmf_fil_iovar_int_set(ifp, "apsta", 1);
+	brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
 
 	/* In case of COB type, firmware has default mac address
 	 * After Initializing firmware, we have to set current mac address to
@@ -473,28 +453,35 @@ static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac)
  * brcmf_p2p_generate_bss_mac() - derive mac addresses for P2P.
  *
  * @p2p: P2P specific data.
+ * @dev_addr: optional device address.
  *
- * P2P needs mac addresses for P2P device and interface. These are
- * derived from the primary net device, ie. the permanent ethernet
- * address of the device.
+ * P2P needs mac addresses for P2P device and interface. If no device
+ * address it specified, these are derived from the primary net device, ie.
+ * the permanent ethernet address of the device.
  */
-static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p)
+static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr)
 {
 	struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
-	struct brcmf_if *p2p_ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp;
+	bool local_admin = false;
+
+	if (!dev_addr || is_zero_ether_addr(dev_addr)) {
+		dev_addr = pri_ifp->mac_addr;
+		local_admin = true;
+	}
 
 	/* Generate the P2P Device Address.  This consists of the device's
 	 * primary MAC address with the locally administered bit set.
 	 */
-	memcpy(p2p->dev_addr, pri_ifp->mac_addr, ETH_ALEN);
-	p2p->dev_addr[0] |= 0x02;
-	memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN);
+	memcpy(p2p->dev_addr, dev_addr, ETH_ALEN);
+	if (local_admin)
+		p2p->dev_addr[0] |= 0x02;
 
 	/* Generate the P2P Interface Address.  If the discovery and connection
 	 * BSSCFGs need to simultaneously co-exist, then this address must be
 	 * different from the P2P Device Address, but also locally administered.
 	 */
 	memcpy(p2p->int_addr, p2p->dev_addr, ETH_ALEN);
+	p2p->int_addr[0] |= 0x02;
 	p2p->int_addr[4] ^= 0x80;
 }
 
@@ -773,7 +760,7 @@ exit:
  * validates the channels in the request.
  */
 static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg,
-			       struct net_device *ndev,
+			       struct brcmf_if *ifp,
 			       struct cfg80211_scan_request *request,
 			       u16 action)
 {
@@ -827,7 +814,8 @@ static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg,
 					   IEEE80211_CHAN_PASSIVE_SCAN))
 				continue;
 
-			chanspecs[i] = channel_to_chanspec(chan);
+			chanspecs[i] = channel_to_chanspec(&p2p->cfg->d11inf,
+							   chan);
 			brcmf_dbg(INFO, "%d: chan=%d, channel spec=%x\n",
 				  num_nodfs, chan->hw_value, chanspecs[i]);
 			num_nodfs++;
@@ -935,8 +923,8 @@ static s32
 brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration)
 {
 	struct brcmf_cfg80211_vif *vif;
+	struct brcmu_chan ch;
 	s32 err = 0;
-	u16 chanspec;
 
 	vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
 	if (!vif) {
@@ -951,9 +939,11 @@ brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration)
 		goto exit;
 	}
 
-	chanspec = brcmf_p2p_chnr_to_chspec(channel);
+	ch.chnum = channel;
+	ch.bw = BRCMU_CHAN_BW_20;
+	p2p->cfg->d11inf.encchspec(&ch);
 	err = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_LISTEN,
-					   chanspec, (u16)duration);
+					   ch.chspec, (u16)duration);
 	if (!err) {
 		set_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status);
 		p2p->remain_on_channel_cookie++;
@@ -1065,6 +1055,7 @@ static s32 brcmf_p2p_act_frm_search(struct brcmf_p2p_info *p2p, u16 channel)
 	u32 channel_cnt;
 	u16 *default_chan_list;
 	u32 i;
+	struct brcmu_chan ch;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
@@ -1079,15 +1070,23 @@ static s32 brcmf_p2p_act_frm_search(struct brcmf_p2p_info *p2p, u16 channel)
 		err = -ENOMEM;
 		goto exit;
 	}
+	ch.bw = BRCMU_CHAN_BW_20;
 	if (channel) {
+		ch.chnum = channel;
+		p2p->cfg->d11inf.encchspec(&ch);
 		/* insert same channel to the chan_list */
 		for (i = 0; i < channel_cnt; i++)
-			default_chan_list[i] =
-					brcmf_p2p_chnr_to_chspec(channel);
+			default_chan_list[i] = ch.chspec;
 	} else {
-		default_chan_list[0] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_1);
-		default_chan_list[1] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_2);
-		default_chan_list[2] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_3);
+		ch.chnum = SOCIAL_CHAN_1;
+		p2p->cfg->d11inf.encchspec(&ch);
+		default_chan_list[0] = ch.chspec;
+		ch.chnum = SOCIAL_CHAN_2;
+		p2p->cfg->d11inf.encchspec(&ch);
+		default_chan_list[1] = ch.chspec;
+		ch.chnum = SOCIAL_CHAN_3;
+		p2p->cfg->d11inf.encchspec(&ch);
+		default_chan_list[2] = ch.chspec;
 	}
 	err = brcmf_p2p_escan(p2p, channel_cnt, default_chan_list,
 			      WL_P2P_DISC_ST_SEARCH, WL_ESCAN_ACTION_START,
@@ -1217,6 +1216,7 @@ bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
 {
 	struct brcmf_p2p_info *p2p = &cfg->p2p;
 	struct afx_hdl *afx_hdl = &p2p->afx_hdl;
+	struct brcmu_chan ch;
 	u8 *ie;
 	s32 err;
 	u8 p2p_dev_addr[ETH_ALEN];
@@ -1242,8 +1242,12 @@ bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
 					    p2p_dev_addr, sizeof(p2p_dev_addr));
 	if ((err >= 0) &&
 	    (!memcmp(p2p_dev_addr, afx_hdl->tx_dst_addr, ETH_ALEN))) {
-		afx_hdl->peer_chan = bi->ctl_ch ? bi->ctl_ch :
-				      CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
+		if (!bi->ctl_ch) {
+			ch.chspec = le16_to_cpu(bi->chanspec);
+			cfg->d11inf.decchspec(&ch);
+			bi->ctl_ch = ch.chnum;
+		}
+		afx_hdl->peer_chan = bi->ctl_ch;
 		brcmf_dbg(TRACE, "ACTION FRAME SCAN : Peer %pM found, channel : %d\n",
 			  afx_hdl->tx_dst_addr, afx_hdl->peer_chan);
 		complete(&afx_hdl->act_frm_scan);
@@ -1261,7 +1265,7 @@ static void
 brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg)
 {
 	struct brcmf_p2p_info *p2p = &cfg->p2p;
-	struct net_device *ndev = cfg->escan_info.ndev;
+	struct brcmf_if *ifp = cfg->escan_info.ifp;
 
 	if (test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status) &&
 	    (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status) ||
@@ -1271,12 +1275,12 @@ brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg)
 		 * So abort scan for off channel completion.
 		 */
 		if (p2p->af_sent_channel)
-			brcmf_notify_escan_complete(cfg, ndev, true, true);
+			brcmf_notify_escan_complete(cfg, ifp, true, true);
 	} else if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
 			    &p2p->status)) {
 		brcmf_dbg(TRACE, "*** Wake UP ** abort listen for next af frame\n");
 		/* So abort scan to cancel listen */
-		brcmf_notify_escan_complete(cfg, ndev, true, true);
+		brcmf_notify_escan_complete(cfg, ifp, true, true);
 	}
 }
 
@@ -1350,12 +1354,14 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
 	u8 *frame = (u8 *)(rxframe + 1);
 	struct brcmf_p2p_pub_act_frame *act_frm;
 	struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm;
-	u16 chanspec = be16_to_cpu(rxframe->chanspec);
+	struct brcmu_chan ch;
 	struct ieee80211_mgmt *mgmt_frame;
 	s32 freq;
 	u16 mgmt_type;
 	u8 action;
 
+	ch.chspec = be16_to_cpu(rxframe->chanspec);
+	cfg->d11inf.decchspec(&ch);
 	/* Check if wpa_supplicant has registered for this frame */
 	brcmf_dbg(INFO, "ifp->vif->mgmt_rx_reg %04x\n", ifp->vif->mgmt_rx_reg);
 	mgmt_type = (IEEE80211_STYPE_ACTION & IEEE80211_FCTL_STYPE) >> 4;
@@ -1374,7 +1380,7 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
 				     &p2p->status) &&
 			    (memcmp(afx_hdl->tx_dst_addr, e->addr,
 				    ETH_ALEN) == 0)) {
-				afx_hdl->peer_chan = CHSPEC_CHANNEL(chanspec);
+				afx_hdl->peer_chan = ch.chnum;
 				brcmf_dbg(INFO, "GON request: Peer found, channel=%d\n",
 					  afx_hdl->peer_chan);
 				complete(&afx_hdl->act_frm_scan);
@@ -1384,7 +1390,7 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
 		/* After complete GO Negotiation, roll back to mpc mode */
 		if ((action == P2P_PAF_GON_CONF) ||
 		    (action == P2P_PAF_PROVDIS_RSP))
-			brcmf_set_mpc(ifp->ndev, 1);
+			brcmf_set_mpc(ifp, 1);
 		if (action == P2P_PAF_GON_CONF) {
 			brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n");
 			clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
@@ -1417,11 +1423,12 @@ int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
 	memcpy(&mgmt_frame->u, frame, mgmt_frame_len);
 	mgmt_frame_len += offsetof(struct ieee80211_mgmt, u);
 
-	freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec),
-					      CHSPEC_IS2G(chanspec) ?
+	freq = ieee80211_channel_to_frequency(ch.chnum,
+					      ch.band == BRCMU_CHAN_BAND_2G ?
 					      IEEE80211_BAND_2GHZ :
 					      IEEE80211_BAND_5GHZ);
-	wdev = ifp->ndev->ieee80211_ptr;
+
+	wdev = &ifp->vif->wdev;
 	cfg80211_rx_mgmt(wdev, freq, 0, (u8 *)mgmt_frame, mgmt_frame_len,
 			 GFP_ATOMIC);
 
@@ -1637,6 +1644,7 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
 				 struct brcmf_fil_af_params_le *af_params)
 {
 	struct brcmf_p2p_info *p2p = &cfg->p2p;
+	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_fil_action_frame_le *action_frame;
 	struct brcmf_config_af_params config_af_params;
 	struct afx_hdl *afx_hdl = &p2p->afx_hdl;
@@ -1725,7 +1733,7 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
 
 	/* To make sure to send successfully action frame, turn off mpc */
 	if (config_af_params.mpc_onoff == 0)
-		brcmf_set_mpc(ndev, 0);
+		brcmf_set_mpc(ifp, 0);
 
 	/* set status and destination address before sending af */
 	if (p2p->next_af_subtype != P2P_PAF_SUBTYPE_INVALID) {
@@ -1753,7 +1761,7 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
 		 * care of current piggback algo, lets abort the scan here
 		 * itself.
 		 */
-		brcmf_notify_escan_complete(cfg, ndev, true, true);
+		brcmf_notify_escan_complete(cfg, ifp, true, true);
 
 		/* update channel */
 		af_params->channel = cpu_to_le32(afx_hdl->peer_chan);
@@ -1820,7 +1828,7 @@ exit:
 	clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status);
 	/* if all done, turn mpc on again */
 	if (config_af_params.mpc_onoff == 1)
-		brcmf_set_mpc(ndev, 1);
+		brcmf_set_mpc(ifp, 1);
 
 	return ack;
 }
@@ -1839,10 +1847,10 @@ s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
 	struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
 	struct brcmf_p2p_info *p2p = &cfg->p2p;
 	struct afx_hdl *afx_hdl = &p2p->afx_hdl;
-	struct wireless_dev *wdev;
 	struct brcmf_cfg80211_vif *vif = ifp->vif;
 	struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data;
 	u16 chanspec = be16_to_cpu(rxframe->chanspec);
+	struct brcmu_chan ch;
 	u8 *mgmt_frame;
 	u32 mgmt_frame_len;
 	s32 freq;
@@ -1851,9 +1859,12 @@ s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
 	brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code,
 		  e->reason);
 
+	ch.chspec = be16_to_cpu(rxframe->chanspec);
+	cfg->d11inf.decchspec(&ch);
+
 	if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status) &&
 	    (memcmp(afx_hdl->tx_dst_addr, e->addr, ETH_ALEN) == 0)) {
-		afx_hdl->peer_chan = CHSPEC_CHANNEL(chanspec);
+		afx_hdl->peer_chan = ch.chnum;
 		brcmf_dbg(INFO, "PROBE REQUEST: Peer found, channel=%d\n",
 			  afx_hdl->peer_chan);
 		complete(&afx_hdl->act_frm_scan);
@@ -1878,12 +1889,13 @@ s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
 
 	mgmt_frame = (u8 *)(rxframe + 1);
 	mgmt_frame_len = e->datalen - sizeof(*rxframe);
-	freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec),
-					      CHSPEC_IS2G(chanspec) ?
+	freq = ieee80211_channel_to_frequency(ch.chnum,
+					      ch.band == BRCMU_CHAN_BAND_2G ?
 					      IEEE80211_BAND_2GHZ :
 					      IEEE80211_BAND_5GHZ);
-	wdev = ifp->ndev->ieee80211_ptr;
-	cfg80211_rx_mgmt(wdev, freq, 0, mgmt_frame, mgmt_frame_len, GFP_ATOMIC);
+
+	cfg80211_rx_mgmt(&vif->wdev, freq, 0, mgmt_frame, mgmt_frame_len,
+			 GFP_ATOMIC);
 
 	brcmf_dbg(INFO, "mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n",
 		  mgmt_frame_len, e->datalen, chanspec, freq);
@@ -1934,7 +1946,8 @@ s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg)
 
 		p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif;
 
-		brcmf_p2p_generate_bss_mac(p2p);
+		brcmf_p2p_generate_bss_mac(p2p, NULL);
+		memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN);
 		brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr);
 
 		/* Initialize P2P Discovery in the firmware */
@@ -2001,21 +2014,19 @@ static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p,
 {
 	struct brcmf_if *ifp;
 	struct brcmf_fil_chan_info_le ci;
+	struct brcmu_chan ch;
 	s32 err;
 
 	ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
 
-	*chanspec = 11 & WL_CHANSPEC_CHAN_MASK;
+	ch.chnum = 11;
 
 	err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci));
-	if (!err) {
-		*chanspec = le32_to_cpu(ci.hw_channel) & WL_CHANSPEC_CHAN_MASK;
-		if (*chanspec < CH_MAX_2G_CHANNEL)
-			*chanspec |= WL_CHANSPEC_BAND_2G;
-		else
-			*chanspec |= WL_CHANSPEC_BAND_5G;
-	}
-	*chanspec |= WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE;
+	if (!err)
+		ch.chnum = le32_to_cpu(ci.hw_channel);
+	ch.bw = BRCMU_CHAN_BW_20;
+	p2p->cfg->d11inf.encchspec(&ch);
+	*chanspec = ch.chspec;
 }
 
 /**
@@ -2040,13 +2051,13 @@ int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
 		brcmf_err("vif for P2PAPI_BSSCFG_PRIMARY does not exist\n");
 		return -EPERM;
 	}
-	brcmf_notify_escan_complete(cfg, vif->ifp->ndev, true, true);
+	brcmf_notify_escan_complete(cfg, vif->ifp, true, true);
 	vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif;
 	if (!vif) {
 		brcmf_err("vif for P2PAPI_BSSCFG_CONNECTION does not exist\n");
 		return -EPERM;
 	}
-	brcmf_set_mpc(vif->ifp->ndev, 0);
+	brcmf_set_mpc(vif->ifp, 0);
 
 	/* In concurrency case, STA may be already associated in a particular */
 	/* channel. so retrieve the current channel of primary interface and  */
@@ -2124,13 +2135,105 @@ static int brcmf_p2p_release_p2p_if(struct brcmf_cfg80211_vif *vif)
 }
 
 /**
+ * brcmf_p2p_create_p2pdev() - create a P2P_DEVICE virtual interface.
+ *
+ * @p2p: P2P specific data.
+ * @wiphy: wiphy device of new interface.
+ * @addr: mac address for this new interface.
+ */
+static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p,
+						    struct wiphy *wiphy,
+						    u8 *addr)
+{
+	struct brcmf_cfg80211_vif *p2p_vif;
+	struct brcmf_if *p2p_ifp;
+	struct brcmf_if *pri_ifp;
+	int err;
+	u32 bssidx;
+
+	if (p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
+		return ERR_PTR(-ENOSPC);
+
+	p2p_vif = brcmf_alloc_vif(p2p->cfg, NL80211_IFTYPE_P2P_DEVICE,
+				  false);
+	if (IS_ERR(p2p_vif)) {
+		brcmf_err("could not create discovery vif\n");
+		return (struct wireless_dev *)p2p_vif;
+	}
+
+	pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
+	brcmf_p2p_generate_bss_mac(p2p, addr);
+	brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr);
+
+	brcmf_cfg80211_arm_vif_event(p2p->cfg, p2p_vif);
+
+	/* Initialize P2P Discovery in the firmware */
+	err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1);
+	if (err < 0) {
+		brcmf_err("set p2p_disc error\n");
+		brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL);
+		goto fail;
+	}
+
+	/* wait for firmware event */
+	err = brcmf_cfg80211_wait_vif_event_timeout(p2p->cfg, BRCMF_E_IF_ADD,
+						    msecs_to_jiffies(1500));
+	brcmf_cfg80211_arm_vif_event(p2p->cfg, NULL);
+	if (!err) {
+		brcmf_err("timeout occurred\n");
+		err = -EIO;
+		goto fail;
+	}
+
+	/* discovery interface created */
+	p2p_ifp = p2p_vif->ifp;
+	p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif;
+	memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN);
+	memcpy(&p2p_vif->wdev.address, p2p->dev_addr, sizeof(p2p->dev_addr));
+
+	/* verify bsscfg index for P2P discovery */
+	err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx);
+	if (err < 0) {
+		brcmf_err("retrieving discover bsscfg index failed\n");
+		goto fail;
+	}
+
+	WARN_ON(p2p_ifp->bssidx != bssidx);
+
+	init_completion(&p2p->send_af_done);
+	INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler);
+	init_completion(&p2p->afx_hdl.act_frm_scan);
+	init_completion(&p2p->wait_next_af);
+
+	return &p2p_vif->wdev;
+
+fail:
+	brcmf_free_vif(p2p_vif);
+	return ERR_PTR(err);
+}
+
+/**
+ * brcmf_p2p_delete_p2pdev() - delete P2P_DEVICE virtual interface.
+ *
+ * @vif: virtual interface object to delete.
+ */
+static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_vif *vif)
+{
+	struct brcmf_p2p_info *p2p = &vif->ifp->drvr->config->p2p;
+
+	cfg80211_unregister_wdev(&vif->wdev);
+	p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL;
+	brcmf_free_vif(vif);
+}
+
+/**
  * brcmf_p2p_add_vif() - create a new P2P virtual interface.
  *
  * @wiphy: wiphy device of new interface.
  * @name: name of the new interface.
  * @type: nl80211 interface type.
- * @flags: TBD
- * @params: TBD
+ * @flags: not used.
+ * @params: contains mac address for P2P device.
  */
 struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
 				       enum nl80211_iftype type, u32 *flags,
@@ -2157,6 +2260,9 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
 		iftype = BRCMF_FIL_P2P_IF_GO;
 		mode = WL_MODE_AP;
 		break;
+	case NL80211_IFTYPE_P2P_DEVICE:
+		return brcmf_p2p_create_p2pdev(&cfg->p2p, wiphy,
+					       params->macaddr);
 	default:
 		return ERR_PTR(-EOPNOTSUPP);
 	}
@@ -2244,6 +2350,8 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
 		break;
 
 	case NL80211_IFTYPE_P2P_DEVICE:
+		brcmf_p2p_delete_p2pdev(vif);
+		return 0;
 	default:
 		return -ENOTSUPP;
 		break;
@@ -2275,3 +2383,33 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
 
 	return err;
 }
+
+int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_p2p_info *p2p = &cfg->p2p;
+	struct brcmf_cfg80211_vif *vif;
+	int err;
+
+	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
+	mutex_lock(&cfg->usr_sync);
+	err = brcmf_p2p_enable_discovery(p2p);
+	if (!err)
+		set_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state);
+	mutex_unlock(&cfg->usr_sync);
+	return err;
+}
+
+void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_p2p_info *p2p = &cfg->p2p;
+	struct brcmf_cfg80211_vif *vif;
+
+	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
+	mutex_lock(&cfg->usr_sync);
+	(void)brcmf_p2p_deinit_discovery(p2p);
+	brcmf_abort_scanning(cfg);
+	clear_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state);
+	mutex_unlock(&cfg->usr_sync);
+}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
index 14be2d5530ce..ca72177388b9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
@@ -40,6 +40,15 @@
 #define BCM4329_CORE_ARM_BASE		0x18002000
 #define BCM4329_RAMSIZE			0x48000
 
+/* bcm43143 */
+/* SDIO device core */
+#define BCM43143_CORE_BUS_BASE		0x18002000
+/* internal memory core */
+#define BCM43143_CORE_SOCRAM_BASE	0x18004000
+/* ARM Cortex M3 core, ID 0x82a */
+#define BCM43143_CORE_ARM_BASE		0x18003000
+#define BCM43143_RAMSIZE		0x70000
+
 #define	SBCOREREV(sbidh) \
 	((((sbidh) & SSB_IDHIGH_RCHI) >> SSB_IDHIGH_RCHI_SHIFT) | \
 	  ((sbidh) & SSB_IDHIGH_RCLO))
@@ -52,6 +61,9 @@
 #define CIB_REV_MASK		0xff000000
 #define CIB_REV_SHIFT		24
 
+/* ARM CR4 core specific control flag bits */
+#define ARMCR4_BCMA_IOCTL_CPUHALT	0x0020
+
 #define SDIOD_DRVSTR_KEY(chip, pmu)     (((chip) << 16) | (pmu))
 /* SDIO Pad drive strength to select value mappings */
 struct sdiod_drive_str {
@@ -70,6 +82,14 @@ static const struct sdiod_drive_str sdiod_drvstr_tab1_1v8[] = {
 	{0, 0x1}
 };
 
+/* SDIO Drive Strength to sel value table for 43143 PMU Rev 17 (3.3V) */
+static const struct sdiod_drive_str sdiod_drvstr_tab2_3v3[] = {
+	{16, 0x7},
+	{12, 0x5},
+	{8,  0x3},
+	{4,  0x1}
+};
+
 u8
 brcmf_sdio_chip_getinfidx(struct chip_info *ci, u16 coreid)
 {
@@ -149,7 +169,7 @@ brcmf_sdio_ai_iscoreup(struct brcmf_sdio_dev *sdiodev,
 
 static void
 brcmf_sdio_sb_coredisable(struct brcmf_sdio_dev *sdiodev,
-			  struct chip_info *ci, u16 coreid)
+			  struct chip_info *ci, u16 coreid, u32 core_bits)
 {
 	u32 regdata, base;
 	u8 idx;
@@ -235,7 +255,7 @@ brcmf_sdio_sb_coredisable(struct brcmf_sdio_dev *sdiodev,
 
 static void
 brcmf_sdio_ai_coredisable(struct brcmf_sdio_dev *sdiodev,
-			  struct chip_info *ci, u16 coreid)
+			  struct chip_info *ci, u16 coreid, u32 core_bits)
 {
 	u8 idx;
 	u32 regdata;
@@ -249,19 +269,36 @@ brcmf_sdio_ai_coredisable(struct brcmf_sdio_dev *sdiodev,
 	if ((regdata & BCMA_RESET_CTL_RESET) != 0)
 		return;
 
-	brcmf_sdio_regwl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL, 0, NULL);
-	regdata = brcmf_sdio_regrl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL,
+	/* ensure no pending backplane operation
+	 * 300uc should be sufficient for backplane ops to be finish
+	 * extra 10ms is taken into account for firmware load stage
+	 * after 10300us carry on disabling the core anyway
+	 */
+	SPINWAIT(brcmf_sdio_regrl(sdiodev,
+				  ci->c_inf[idx].wrapbase+BCMA_RESET_ST,
+				  NULL), 10300);
+	regdata = brcmf_sdio_regrl(sdiodev,
+				   ci->c_inf[idx].wrapbase+BCMA_RESET_ST,
 				   NULL);
-	udelay(10);
+	if (regdata)
+		brcmf_err("disabling core 0x%x with reset status %x\n",
+			  coreid, regdata);
 
 	brcmf_sdio_regwl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_RESET_CTL,
 			 BCMA_RESET_CTL_RESET, NULL);
 	udelay(1);
+
+	brcmf_sdio_regwl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL,
+			 core_bits, NULL);
+	regdata = brcmf_sdio_regrl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL,
+				   NULL);
+	usleep_range(10, 20);
+
 }
 
 static void
 brcmf_sdio_sb_resetcore(struct brcmf_sdio_dev *sdiodev,
-			struct chip_info *ci, u16 coreid)
+			struct chip_info *ci, u16 coreid, u32 core_bits)
 {
 	u32 regdata;
 	u8 idx;
@@ -272,7 +309,7 @@ brcmf_sdio_sb_resetcore(struct brcmf_sdio_dev *sdiodev,
 	 * Must do the disable sequence first to work for
 	 * arbitrary current core state.
 	 */
-	brcmf_sdio_sb_coredisable(sdiodev, ci, coreid);
+	brcmf_sdio_sb_coredisable(sdiodev, ci, coreid, 0);
 
 	/*
 	 * Now do the initialization sequence.
@@ -325,7 +362,7 @@ brcmf_sdio_sb_resetcore(struct brcmf_sdio_dev *sdiodev,
 
 static void
 brcmf_sdio_ai_resetcore(struct brcmf_sdio_dev *sdiodev,
-			struct chip_info *ci, u16 coreid)
+			struct chip_info *ci, u16 coreid, u32 core_bits)
 {
 	u8 idx;
 	u32 regdata;
@@ -333,31 +370,69 @@ brcmf_sdio_ai_resetcore(struct brcmf_sdio_dev *sdiodev,
 	idx = brcmf_sdio_chip_getinfidx(ci, coreid);
 
 	/* must disable first to work for arbitrary current core state */
-	brcmf_sdio_ai_coredisable(sdiodev, ci, coreid);
+	brcmf_sdio_ai_coredisable(sdiodev, ci, coreid, core_bits);
 
 	/* now do initialization sequence */
 	brcmf_sdio_regwl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL,
-			 BCMA_IOCTL_FGC | BCMA_IOCTL_CLK, NULL);
+			 core_bits | BCMA_IOCTL_FGC | BCMA_IOCTL_CLK, NULL);
 	regdata = brcmf_sdio_regrl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL,
 				   NULL);
 	brcmf_sdio_regwl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_RESET_CTL,
 			 0, NULL);
+	regdata = brcmf_sdio_regrl(sdiodev,
+				   ci->c_inf[idx].wrapbase+BCMA_RESET_CTL,
+				   NULL);
 	udelay(1);
 
 	brcmf_sdio_regwl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL,
-			 BCMA_IOCTL_CLK, NULL);
+			 core_bits | BCMA_IOCTL_CLK, NULL);
 	regdata = brcmf_sdio_regrl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL,
 				   NULL);
 	udelay(1);
 }
 
+#ifdef DEBUG
+/* safety check for chipinfo */
+static int brcmf_sdio_chip_cichk(struct chip_info *ci)
+{
+	u8 core_idx;
+
+	/* check RAM core presence for ARM CM3 core */
+	core_idx = brcmf_sdio_chip_getinfidx(ci, BCMA_CORE_ARM_CM3);
+	if (BRCMF_MAX_CORENUM != core_idx) {
+		core_idx = brcmf_sdio_chip_getinfidx(ci,
+						     BCMA_CORE_INTERNAL_MEM);
+		if (BRCMF_MAX_CORENUM == core_idx) {
+			brcmf_err("RAM core not provided with ARM CM3 core\n");
+			return -ENODEV;
+		}
+	}
+
+	/* check RAM base for ARM CR4 core */
+	core_idx = brcmf_sdio_chip_getinfidx(ci, BCMA_CORE_ARM_CR4);
+	if (BRCMF_MAX_CORENUM != core_idx) {
+		if (ci->rambase == 0) {
+			brcmf_err("RAM base not provided with ARM CR4 core\n");
+			return -ENOMEM;
+		}
+	}
+
+	return 0;
+}
+#else	/* DEBUG */
+static inline int brcmf_sdio_chip_cichk(struct chip_info *ci)
+{
+	return 0;
+}
+#endif
+
 static int brcmf_sdio_chip_recognition(struct brcmf_sdio_dev *sdiodev,
 				       struct chip_info *ci, u32 regs)
 {
 	u32 regdata;
+	int ret;
 
-	/*
-	 * Get CC core rev
+	/* Get CC core rev
 	 * Chipid is assume to be at offset 0 from regs arg
 	 * For different chiptypes or old sdio hosts w/o chipcommon,
 	 * other ways of recognition should be added here.
@@ -375,6 +450,23 @@ static int brcmf_sdio_chip_recognition(struct brcmf_sdio_dev *sdiodev,
 
 	/* Address of cores for new chips should be added here */
 	switch (ci->chip) {
+	case BCM43143_CHIP_ID:
+		ci->c_inf[0].wrapbase = ci->c_inf[0].base + 0x00100000;
+		ci->c_inf[0].cib = 0x2b000000;
+		ci->c_inf[1].id = BCMA_CORE_SDIO_DEV;
+		ci->c_inf[1].base = BCM43143_CORE_BUS_BASE;
+		ci->c_inf[1].wrapbase = ci->c_inf[1].base + 0x00100000;
+		ci->c_inf[1].cib = 0x18000000;
+		ci->c_inf[2].id = BCMA_CORE_INTERNAL_MEM;
+		ci->c_inf[2].base = BCM43143_CORE_SOCRAM_BASE;
+		ci->c_inf[2].wrapbase = ci->c_inf[2].base + 0x00100000;
+		ci->c_inf[2].cib = 0x14000000;
+		ci->c_inf[3].id = BCMA_CORE_ARM_CM3;
+		ci->c_inf[3].base = BCM43143_CORE_ARM_BASE;
+		ci->c_inf[3].wrapbase = ci->c_inf[3].base + 0x00100000;
+		ci->c_inf[3].cib = 0x07000000;
+		ci->ramsize = BCM43143_RAMSIZE;
+		break;
 	case BCM43241_CHIP_ID:
 		ci->c_inf[0].wrapbase = 0x18100000;
 		ci->c_inf[0].cib = 0x2a084411;
@@ -435,11 +527,29 @@ static int brcmf_sdio_chip_recognition(struct brcmf_sdio_dev *sdiodev,
 		ci->c_inf[3].cib = 0x07004211;
 		ci->ramsize = 0x80000;
 		break;
+	case BCM4335_CHIP_ID:
+		ci->c_inf[0].wrapbase = 0x18100000;
+		ci->c_inf[0].cib = 0x2b084411;
+		ci->c_inf[1].id = BCMA_CORE_SDIO_DEV;
+		ci->c_inf[1].base = 0x18005000;
+		ci->c_inf[1].wrapbase = 0x18105000;
+		ci->c_inf[1].cib = 0x0f004211;
+		ci->c_inf[2].id = BCMA_CORE_ARM_CR4;
+		ci->c_inf[2].base = 0x18002000;
+		ci->c_inf[2].wrapbase = 0x18102000;
+		ci->c_inf[2].cib = 0x01084411;
+		ci->ramsize = 0xc0000;
+		ci->rambase = 0x180000;
+		break;
 	default:
 		brcmf_err("chipid 0x%x is not supported\n", ci->chip);
 		return -ENODEV;
 	}
 
+	ret = brcmf_sdio_chip_cichk(ci);
+	if (ret)
+		return ret;
+
 	switch (ci->socitype) {
 	case SOCI_SB:
 		ci->iscoreup = brcmf_sdio_sb_iscoreup;
@@ -539,7 +649,7 @@ brcmf_sdio_chip_buscoresetup(struct brcmf_sdio_dev *sdiodev,
 	 * Make sure any on-chip ARM is off (in case strapping is wrong),
 	 * or downloaded code was already running.
 	 */
-	ci->coredisable(sdiodev, ci, BCMA_CORE_ARM_CM3);
+	ci->coredisable(sdiodev, ci, BCMA_CORE_ARM_CM3, 0);
 }
 
 int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
@@ -600,21 +710,37 @@ void
 brcmf_sdio_chip_drivestrengthinit(struct brcmf_sdio_dev *sdiodev,
 				  struct chip_info *ci, u32 drivestrength)
 {
-	struct sdiod_drive_str *str_tab = NULL;
-	u32 str_mask = 0;
-	u32 str_shift = 0;
+	const struct sdiod_drive_str *str_tab = NULL;
+	u32 str_mask;
+	u32 str_shift;
 	char chn[8];
 	u32 base = ci->c_inf[0].base;
+	u32 i;
+	u32 drivestrength_sel = 0;
+	u32 cc_data_temp;
+	u32 addr;
 
 	if (!(ci->c_inf[0].caps & CC_CAP_PMU))
 		return;
 
 	switch (SDIOD_DRVSTR_KEY(ci->chip, ci->pmurev)) {
 	case SDIOD_DRVSTR_KEY(BCM4330_CHIP_ID, 12):
-		str_tab = (struct sdiod_drive_str *)&sdiod_drvstr_tab1_1v8;
+		str_tab = sdiod_drvstr_tab1_1v8;
 		str_mask = 0x00003800;
 		str_shift = 11;
 		break;
+	case SDIOD_DRVSTR_KEY(BCM43143_CHIP_ID, 17):
+		/* note: 43143 does not support tristate */
+		i = ARRAY_SIZE(sdiod_drvstr_tab2_3v3) - 1;
+		if (drivestrength >= sdiod_drvstr_tab2_3v3[i].strength) {
+			str_tab = sdiod_drvstr_tab2_3v3;
+			str_mask = 0x00000007;
+			str_shift = 0;
+		} else
+			brcmf_err("Invalid SDIO Drive strength for chip %s, strength=%d\n",
+				  brcmf_sdio_chip_name(ci->chip, chn, 8),
+				  drivestrength);
+		break;
 	default:
 		brcmf_err("No SDIO Drive strength init done for chip %s rev %d pmurev %d\n",
 			  brcmf_sdio_chip_name(ci->chip, chn, 8),
@@ -623,30 +749,207 @@ brcmf_sdio_chip_drivestrengthinit(struct brcmf_sdio_dev *sdiodev,
 	}
 
 	if (str_tab != NULL) {
-		u32 drivestrength_sel = 0;
-		u32 cc_data_temp;
-		int i;
-
 		for (i = 0; str_tab[i].strength != 0; i++) {
 			if (drivestrength >= str_tab[i].strength) {
 				drivestrength_sel = str_tab[i].sel;
 				break;
 			}
 		}
-
-		brcmf_sdio_regwl(sdiodev, CORE_CC_REG(base, chipcontrol_addr),
-				 1, NULL);
-		cc_data_temp =
-			brcmf_sdio_regrl(sdiodev,
-					 CORE_CC_REG(base, chipcontrol_addr),
-					 NULL);
+		addr = CORE_CC_REG(base, chipcontrol_addr);
+		brcmf_sdio_regwl(sdiodev, addr, 1, NULL);
+		cc_data_temp = brcmf_sdio_regrl(sdiodev, addr, NULL);
 		cc_data_temp &= ~str_mask;
 		drivestrength_sel <<= str_shift;
 		cc_data_temp |= drivestrength_sel;
-		brcmf_sdio_regwl(sdiodev, CORE_CC_REG(base, chipcontrol_addr),
-				 cc_data_temp, NULL);
+		brcmf_sdio_regwl(sdiodev, addr, cc_data_temp, NULL);
 
-		brcmf_dbg(INFO, "SDIO: %dmA drive strength selected, set to 0x%08x\n",
-			  drivestrength, cc_data_temp);
+		brcmf_dbg(INFO, "SDIO: %d mA (req=%d mA) drive strength selected, set to 0x%08x\n",
+			  str_tab[i].strength, drivestrength, cc_data_temp);
 	}
 }
+
+#ifdef DEBUG
+static bool
+brcmf_sdio_chip_verifynvram(struct brcmf_sdio_dev *sdiodev, u32 nvram_addr,
+			    char *nvram_dat, uint nvram_sz)
+{
+	char *nvram_ularray;
+	int err;
+	bool ret = true;
+
+	/* read back and verify */
+	brcmf_dbg(INFO, "Compare NVRAM dl & ul; size=%d\n", nvram_sz);
+	nvram_ularray = kmalloc(nvram_sz, GFP_KERNEL);
+	/* do not proceed while no memory but  */
+	if (!nvram_ularray)
+		return true;
+
+	/* Upload image to verify downloaded contents. */
+	memset(nvram_ularray, 0xaa, nvram_sz);
+
+	/* Read the vars list to temp buffer for comparison */
+	err = brcmf_sdio_ramrw(sdiodev, false, nvram_addr, nvram_ularray,
+			       nvram_sz);
+	if (err) {
+		brcmf_err("error %d on reading %d nvram bytes at 0x%08x\n",
+			  err, nvram_sz, nvram_addr);
+	} else if (memcmp(nvram_dat, nvram_ularray, nvram_sz)) {
+		brcmf_err("Downloaded NVRAM image is corrupted\n");
+		ret = false;
+	}
+	kfree(nvram_ularray);
+
+	return ret;
+}
+#else	/* DEBUG */
+static inline bool
+brcmf_sdio_chip_verifynvram(struct brcmf_sdio_dev *sdiodev, u32 nvram_addr,
+			    char *nvram_dat, uint nvram_sz)
+{
+	return true;
+}
+#endif	/* DEBUG */
+
+static bool brcmf_sdio_chip_writenvram(struct brcmf_sdio_dev *sdiodev,
+				       struct chip_info *ci,
+				       char *nvram_dat, uint nvram_sz)
+{
+	int err;
+	u32 nvram_addr;
+	u32 token;
+	__le32 token_le;
+
+	nvram_addr = (ci->ramsize - 4) - nvram_sz + ci->rambase;
+
+	/* Write the vars list */
+	err = brcmf_sdio_ramrw(sdiodev, true, nvram_addr, nvram_dat, nvram_sz);
+	if (err) {
+		brcmf_err("error %d on writing %d nvram bytes at 0x%08x\n",
+			  err, nvram_sz, nvram_addr);
+		return false;
+	}
+
+	if (!brcmf_sdio_chip_verifynvram(sdiodev, nvram_addr,
+					 nvram_dat, nvram_sz))
+		return false;
+
+	/* generate token:
+	 * nvram size, converted to words, in lower 16-bits, checksum
+	 * in upper 16-bits.
+	 */
+	token = nvram_sz / 4;
+	token = (~token << 16) | (token & 0x0000FFFF);
+	token_le = cpu_to_le32(token);
+
+	brcmf_dbg(INFO, "RAM size: %d\n", ci->ramsize);
+	brcmf_dbg(INFO, "nvram is placed at %d, size %d, token=0x%08x\n",
+		  nvram_addr, nvram_sz, token);
+
+	/* Write the length token to the last word */
+	if (brcmf_sdio_ramrw(sdiodev, true, (ci->ramsize - 4 + ci->rambase),
+			     (u8 *)&token_le, 4))
+		return false;
+
+	return true;
+}
+
+static void
+brcmf_sdio_chip_cm3_enterdl(struct brcmf_sdio_dev *sdiodev,
+			    struct chip_info *ci)
+{
+	u32 zeros = 0;
+
+	ci->coredisable(sdiodev, ci, BCMA_CORE_ARM_CM3, 0);
+	ci->resetcore(sdiodev, ci, BCMA_CORE_INTERNAL_MEM, 0);
+
+	/* clear length token */
+	brcmf_sdio_ramrw(sdiodev, true, ci->ramsize - 4, (u8 *)&zeros, 4);
+}
+
+static bool
+brcmf_sdio_chip_cm3_exitdl(struct brcmf_sdio_dev *sdiodev, struct chip_info *ci,
+			   char *nvram_dat, uint nvram_sz)
+{
+	u8 core_idx;
+	u32 reg_addr;
+
+	if (!ci->iscoreup(sdiodev, ci, BCMA_CORE_INTERNAL_MEM)) {
+		brcmf_err("SOCRAM core is down after reset?\n");
+		return false;
+	}
+
+	if (!brcmf_sdio_chip_writenvram(sdiodev, ci, nvram_dat, nvram_sz))
+		return false;
+
+	/* clear all interrupts */
+	core_idx = brcmf_sdio_chip_getinfidx(ci, BCMA_CORE_SDIO_DEV);
+	reg_addr = ci->c_inf[core_idx].base;
+	reg_addr += offsetof(struct sdpcmd_regs, intstatus);
+	brcmf_sdio_regwl(sdiodev, reg_addr, 0xFFFFFFFF, NULL);
+
+	ci->resetcore(sdiodev, ci, BCMA_CORE_ARM_CM3, 0);
+
+	return true;
+}
+
+static inline void
+brcmf_sdio_chip_cr4_enterdl(struct brcmf_sdio_dev *sdiodev,
+			    struct chip_info *ci)
+{
+	ci->resetcore(sdiodev, ci, BCMA_CORE_ARM_CR4,
+		      ARMCR4_BCMA_IOCTL_CPUHALT);
+}
+
+static bool
+brcmf_sdio_chip_cr4_exitdl(struct brcmf_sdio_dev *sdiodev, struct chip_info *ci,
+			   char *nvram_dat, uint nvram_sz)
+{
+	u8 core_idx;
+	u32 reg_addr;
+
+	if (!brcmf_sdio_chip_writenvram(sdiodev, ci, nvram_dat, nvram_sz))
+		return false;
+
+	/* clear all interrupts */
+	core_idx = brcmf_sdio_chip_getinfidx(ci, BCMA_CORE_SDIO_DEV);
+	reg_addr = ci->c_inf[core_idx].base;
+	reg_addr += offsetof(struct sdpcmd_regs, intstatus);
+	brcmf_sdio_regwl(sdiodev, reg_addr, 0xFFFFFFFF, NULL);
+
+	/* Write reset vector to address 0 */
+	brcmf_sdio_ramrw(sdiodev, true, 0, (void *)&ci->rst_vec,
+			 sizeof(ci->rst_vec));
+
+	/* restore ARM */
+	ci->resetcore(sdiodev, ci, BCMA_CORE_ARM_CR4, 0);
+
+	return true;
+}
+
+void brcmf_sdio_chip_enter_download(struct brcmf_sdio_dev *sdiodev,
+				    struct chip_info *ci)
+{
+	u8 arm_core_idx;
+
+	arm_core_idx = brcmf_sdio_chip_getinfidx(ci, BCMA_CORE_ARM_CM3);
+	if (BRCMF_MAX_CORENUM != arm_core_idx) {
+		brcmf_sdio_chip_cm3_enterdl(sdiodev, ci);
+		return;
+	}
+
+	brcmf_sdio_chip_cr4_enterdl(sdiodev, ci);
+}
+
+bool brcmf_sdio_chip_exit_download(struct brcmf_sdio_dev *sdiodev,
+				   struct chip_info *ci, char *nvram_dat,
+				   uint nvram_sz)
+{
+	u8 arm_core_idx;
+
+	arm_core_idx = brcmf_sdio_chip_getinfidx(ci, BCMA_CORE_ARM_CM3);
+	if (BRCMF_MAX_CORENUM != arm_core_idx)
+		return brcmf_sdio_chip_cm3_exitdl(sdiodev, ci, nvram_dat,
+						  nvram_sz);
+
+	return brcmf_sdio_chip_cr4_exitdl(sdiodev, ci, nvram_dat, nvram_sz);
+}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
index ce974d76bd92..83c041f1bf4a 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
@@ -73,15 +73,17 @@ struct chip_info {
 	u32 pmurev;
 	u32 pmucaps;
 	u32 ramsize;
+	u32 rambase;
+	u32 rst_vec;	/* reset vertor for ARM CR4 core */
 
 	bool (*iscoreup)(struct brcmf_sdio_dev *sdiodev, struct chip_info *ci,
 			 u16 coreid);
 	u32 (*corerev)(struct brcmf_sdio_dev *sdiodev, struct chip_info *ci,
 			 u16 coreid);
 	void (*coredisable)(struct brcmf_sdio_dev *sdiodev,
-			struct chip_info *ci, u16 coreid);
+			struct chip_info *ci, u16 coreid, u32 core_bits);
 	void (*resetcore)(struct brcmf_sdio_dev *sdiodev,
-			struct chip_info *ci, u16 coreid);
+			struct chip_info *ci, u16 coreid, u32 core_bits);
 };
 
 struct sbconfig {
@@ -124,6 +126,95 @@ struct sbconfig {
 	u32 sbidhigh;	/* identification */
 };
 
+/* sdio core registers */
+struct sdpcmd_regs {
+	u32 corecontrol;		/* 0x00, rev8 */
+	u32 corestatus;			/* rev8 */
+	u32 PAD[1];
+	u32 biststatus;			/* rev8 */
+
+	/* PCMCIA access */
+	u16 pcmciamesportaladdr;	/* 0x010, rev8 */
+	u16 PAD[1];
+	u16 pcmciamesportalmask;	/* rev8 */
+	u16 PAD[1];
+	u16 pcmciawrframebc;		/* rev8 */
+	u16 PAD[1];
+	u16 pcmciaunderflowtimer;	/* rev8 */
+	u16 PAD[1];
+
+	/* interrupt */
+	u32 intstatus;			/* 0x020, rev8 */
+	u32 hostintmask;		/* rev8 */
+	u32 intmask;			/* rev8 */
+	u32 sbintstatus;		/* rev8 */
+	u32 sbintmask;			/* rev8 */
+	u32 funcintmask;		/* rev4 */
+	u32 PAD[2];
+	u32 tosbmailbox;		/* 0x040, rev8 */
+	u32 tohostmailbox;		/* rev8 */
+	u32 tosbmailboxdata;		/* rev8 */
+	u32 tohostmailboxdata;		/* rev8 */
+
+	/* synchronized access to registers in SDIO clock domain */
+	u32 sdioaccess;			/* 0x050, rev8 */
+	u32 PAD[3];
+
+	/* PCMCIA frame control */
+	u8 pcmciaframectrl;		/* 0x060, rev8 */
+	u8 PAD[3];
+	u8 pcmciawatermark;		/* rev8 */
+	u8 PAD[155];
+
+	/* interrupt batching control */
+	u32 intrcvlazy;			/* 0x100, rev8 */
+	u32 PAD[3];
+
+	/* counters */
+	u32 cmd52rd;			/* 0x110, rev8 */
+	u32 cmd52wr;			/* rev8 */
+	u32 cmd53rd;			/* rev8 */
+	u32 cmd53wr;			/* rev8 */
+	u32 abort;			/* rev8 */
+	u32 datacrcerror;		/* rev8 */
+	u32 rdoutofsync;		/* rev8 */
+	u32 wroutofsync;		/* rev8 */
+	u32 writebusy;			/* rev8 */
+	u32 readwait;			/* rev8 */
+	u32 readterm;			/* rev8 */
+	u32 writeterm;			/* rev8 */
+	u32 PAD[40];
+	u32 clockctlstatus;		/* rev8 */
+	u32 PAD[7];
+
+	u32 PAD[128];			/* DMA engines */
+
+	/* SDIO/PCMCIA CIS region */
+	char cis[512];			/* 0x400-0x5ff, rev6 */
+
+	/* PCMCIA function control registers */
+	char pcmciafcr[256];		/* 0x600-6ff, rev6 */
+	u16 PAD[55];
+
+	/* PCMCIA backplane access */
+	u16 backplanecsr;		/* 0x76E, rev6 */
+	u16 backplaneaddr0;		/* rev6 */
+	u16 backplaneaddr1;		/* rev6 */
+	u16 backplaneaddr2;		/* rev6 */
+	u16 backplaneaddr3;		/* rev6 */
+	u16 backplanedata0;		/* rev6 */
+	u16 backplanedata1;		/* rev6 */
+	u16 backplanedata2;		/* rev6 */
+	u16 backplanedata3;		/* rev6 */
+	u16 PAD[31];
+
+	/* sprom "size" & "blank" info */
+	u16 spromstatus;		/* 0x7BE, rev2 */
+	u32 PAD[464];
+
+	u16 PAD[0x80];
+};
+
 extern int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
 				  struct chip_info **ci_ptr, u32 regs);
 extern void brcmf_sdio_chip_detach(struct chip_info **ci_ptr);
@@ -131,6 +222,10 @@ extern void brcmf_sdio_chip_drivestrengthinit(struct brcmf_sdio_dev *sdiodev,
 					      struct chip_info *ci,
 					      u32 drivestrength);
 extern u8 brcmf_sdio_chip_getinfidx(struct chip_info *ci, u16 coreid);
-
+extern void brcmf_sdio_chip_enter_download(struct brcmf_sdio_dev *sdiodev,
+					   struct chip_info *ci);
+extern bool brcmf_sdio_chip_exit_download(struct brcmf_sdio_dev *sdiodev,
+					  struct chip_info *ci, char *nvram_dat,
+					  uint nvram_sz);
 
 #endif		/* _BRCMFMAC_SDIO_CHIP_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 0d30afd8c672..7c1b6332747e 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -48,7 +48,13 @@
 #define SBSDIO_NUM_FUNCTION		3
 
 /* function 0 vendor specific CCCR registers */
-#define SDIO_CCCR_BRCM_SEPINT		0xf2
+#define SDIO_CCCR_BRCM_CARDCAP			0xf0
+#define SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT	0x02
+#define SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT	0x04
+#define SDIO_CCCR_BRCM_CARDCAP_CMD_NODEC	0x08
+#define SDIO_CCCR_BRCM_CARDCTRL		0xf1
+#define SDIO_CCCR_BRCM_CARDCTRL_WLANRESET	0x02
+#define SDIO_CCCR_BRCM_SEPINT			0xf2
 
 #define  SDIO_SEPINT_MASK		0x01
 #define  SDIO_SEPINT_OE			0x02
@@ -97,9 +103,23 @@
 #define SBSDIO_FUNC1_RFRAMEBCLO		0x1001B
 /* Read Frame Byte Count High */
 #define SBSDIO_FUNC1_RFRAMEBCHI		0x1001C
+/* MesBusyCtl (rev 11) */
+#define SBSDIO_FUNC1_MESBUSYCTRL	0x1001D
+/* Sdio Core Rev 12 */
+#define SBSDIO_FUNC1_WAKEUPCTRL		0x1001E
+#define SBSDIO_FUNC1_WCTRL_ALPWAIT_MASK		0x1
+#define SBSDIO_FUNC1_WCTRL_ALPWAIT_SHIFT	0
+#define SBSDIO_FUNC1_WCTRL_HTWAIT_MASK		0x2
+#define SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT		1
+#define SBSDIO_FUNC1_SLEEPCSR		0x1001F
+#define SBSDIO_FUNC1_SLEEPCSR_KSO_MASK		0x1
+#define SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT		0
+#define SBSDIO_FUNC1_SLEEPCSR_KSO_EN		1
+#define SBSDIO_FUNC1_SLEEPCSR_DEVON_MASK	0x2
+#define SBSDIO_FUNC1_SLEEPCSR_DEVON_SHIFT	1
 
 #define SBSDIO_FUNC1_MISC_REG_START	0x10000	/* f1 misc register start */
-#define SBSDIO_FUNC1_MISC_REG_LIMIT	0x1001C	/* f1 misc register end */
+#define SBSDIO_FUNC1_MISC_REG_LIMIT	0x1001F	/* f1 misc register end */
 
 /* function 1 OCP space */
 
@@ -154,13 +174,11 @@ struct brcmf_sdio_dev {
 	wait_queue_head_t request_buffer_wait;
 	struct device *dev;
 	struct brcmf_bus *bus_if;
-#ifdef CONFIG_BRCMFMAC_SDIO_OOB
-	unsigned int irq;		/* oob interrupt number */
-	unsigned long irq_flags;	/* board specific oob flags */
+	struct brcmfmac_sdio_platform_data *pdata;
+	bool oob_irq_requested;
 	bool irq_en;			/* irq enable flags */
 	spinlock_t irq_en_lock;
 	bool irq_wake;			/* irq wake enable flags */
-#endif		/* CONFIG_BRCMFMAC_SDIO_OOB */
 };
 
 /* Register/deregister interrupt handler. */
@@ -224,6 +242,8 @@ brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
  */
 extern int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw,
 			       u32 addr, u8 *buf, uint nbytes);
+extern int brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write,
+			    u32 address, u8 *data, uint size);
 
 /* Issue an abort to the specified function */
 extern int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.c b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.c
new file mode 100644
index 000000000000..b505db48c60d
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2012 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h> /* bug in tracepoint.h, it should include this */
+
+#ifndef __CHECKER__
+#define CREATE_TRACE_POINTS
+#include "tracepoint.h"
+#endif
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
new file mode 100644
index 000000000000..9df1f7a681e0
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2013 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#if !defined(BRCMF_TRACEPOINT_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define BRCMF_TRACEPOINT_H_
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+
+#ifndef CONFIG_BRCM_TRACING
+
+#undef TRACE_EVENT
+#define TRACE_EVENT(name, proto, ...) \
+static inline void trace_ ## name(proto) {}
+
+#undef DECLARE_EVENT_CLASS
+#define DECLARE_EVENT_CLASS(...)
+
+#undef DEFINE_EVENT
+#define DEFINE_EVENT(evt_class, name, proto, ...) \
+static inline void trace_ ## name(proto) {}
+
+#endif /* CONFIG_BRCM_TRACING */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM	brcmfmac
+
+#define MAX_MSG_LEN		100
+
+TRACE_EVENT(brcmf_err,
+	TP_PROTO(const char *func, struct va_format *vaf),
+	TP_ARGS(func, vaf),
+	TP_STRUCT__entry(
+		__string(func, func)
+		__dynamic_array(char, msg, MAX_MSG_LEN)
+	),
+	TP_fast_assign(
+		__assign_str(func, func);
+		WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+				       MAX_MSG_LEN, vaf->fmt,
+				       *vaf->va) >= MAX_MSG_LEN);
+	),
+	TP_printk("%s: %s", __get_str(func), __get_str(msg))
+);
+
+TRACE_EVENT(brcmf_dbg,
+	TP_PROTO(u32 level, const char *func, struct va_format *vaf),
+	TP_ARGS(level, func, vaf),
+	TP_STRUCT__entry(
+		__field(u32, level)
+		__string(func, func)
+		__dynamic_array(char, msg, MAX_MSG_LEN)
+	),
+	TP_fast_assign(
+		__entry->level = level;
+		__assign_str(func, func);
+		WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+				       MAX_MSG_LEN, vaf->fmt,
+				       *vaf->va) >= MAX_MSG_LEN);
+	),
+	TP_printk("%s: %s", __get_str(func), __get_str(msg))
+);
+
+TRACE_EVENT(brcmf_hexdump,
+	TP_PROTO(void *data, size_t len),
+	TP_ARGS(data, len),
+	TP_STRUCT__entry(
+		__field(unsigned long, len)
+		__dynamic_array(u8, hdata, len)
+	),
+	TP_fast_assign(
+		__entry->len = len;
+		memcpy(__get_dynamic_array(hdata), data, len);
+	),
+	TP_printk("hexdump [length=%lu]", __entry->len)
+);
+
+#ifdef CONFIG_BRCM_TRACING
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE tracepoint
+
+#include <trace/define_trace.h>
+
+#endif /* CONFIG_BRCM_TRACING */
+
+#endif /* BRCMF_TRACEPOINT_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
index 42289e9ea886..01aed7ad6bec 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
@@ -112,11 +112,6 @@ struct brcmf_usbdev_info {
 static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
 				struct brcmf_usbreq  *req);
 
-MODULE_AUTHOR("Broadcom Corporation");
-MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac usb driver.");
-MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac usb cards");
-MODULE_LICENSE("Dual BSD/GPL");
-
 static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
 {
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
@@ -422,8 +417,6 @@ static void brcmf_usb_tx_complete(struct urb *urb)
 	brcmf_usb_del_fromq(devinfo, req);
 
 	brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
-
-	brcmu_pkt_buf_free_skb(req->skb);
 	req->skb = NULL;
 	brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
 	if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
@@ -577,15 +570,17 @@ static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
 	int ret;
 
 	brcmf_dbg(USB, "Enter, skb=%p\n", skb);
-	if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
-		return -EIO;
+	if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
+		ret = -EIO;
+		goto fail;
+	}
 
 	req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
 					&devinfo->tx_freecount);
 	if (!req) {
-		brcmu_pkt_buf_free_skb(skb);
 		brcmf_err("no req to send\n");
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto fail;
 	}
 
 	req->skb = skb;
@@ -598,18 +593,21 @@ static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
 	if (ret) {
 		brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
 		brcmf_usb_del_fromq(devinfo, req);
-		brcmu_pkt_buf_free_skb(req->skb);
 		req->skb = NULL;
 		brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
-						&devinfo->tx_freecount);
-	} else {
-		if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
-			!devinfo->tx_flowblock) {
-			brcmf_txflowblock(dev, true);
-			devinfo->tx_flowblock = true;
-		}
+			      &devinfo->tx_freecount);
+		goto fail;
 	}
 
+	if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
+	    !devinfo->tx_flowblock) {
+		brcmf_txflowblock(dev, true);
+		devinfo->tx_flowblock = true;
+	}
+	return 0;
+
+fail:
+	brcmf_txcomplete(dev, skb, false);
 	return ret;
 }
 
@@ -1485,6 +1483,7 @@ static struct usb_device_id brcmf_usb_devid_table[] = {
 	{ USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_BCMFW) },
 	{ }
 };
+
 MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
 MODULE_FIRMWARE(BRCMF_USB_43143_FW_NAME);
 MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 78da3eff75e8..6d758f285352 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -26,8 +26,10 @@
 #include <brcmu_wifi.h>
 #include "dhd.h"
 #include "dhd_dbg.h"
+#include "tracepoint.h"
 #include "fwil_types.h"
 #include "p2p.h"
+#include "btcoex.h"
 #include "wl_cfg80211.h"
 #include "fwil.h"
 
@@ -182,64 +184,6 @@ static struct ieee80211_channel __wl_5ghz_a_channels[] = {
 	CHAN5G(216, 0),
 };
 
-static struct ieee80211_channel __wl_5ghz_n_channels[] = {
-	CHAN5G(32, 0), CHAN5G(34, 0),
-	CHAN5G(36, 0), CHAN5G(38, 0),
-	CHAN5G(40, 0), CHAN5G(42, 0),
-	CHAN5G(44, 0), CHAN5G(46, 0),
-	CHAN5G(48, 0), CHAN5G(50, 0),
-	CHAN5G(52, 0), CHAN5G(54, 0),
-	CHAN5G(56, 0), CHAN5G(58, 0),
-	CHAN5G(60, 0), CHAN5G(62, 0),
-	CHAN5G(64, 0), CHAN5G(66, 0),
-	CHAN5G(68, 0), CHAN5G(70, 0),
-	CHAN5G(72, 0), CHAN5G(74, 0),
-	CHAN5G(76, 0), CHAN5G(78, 0),
-	CHAN5G(80, 0), CHAN5G(82, 0),
-	CHAN5G(84, 0), CHAN5G(86, 0),
-	CHAN5G(88, 0), CHAN5G(90, 0),
-	CHAN5G(92, 0), CHAN5G(94, 0),
-	CHAN5G(96, 0), CHAN5G(98, 0),
-	CHAN5G(100, 0), CHAN5G(102, 0),
-	CHAN5G(104, 0), CHAN5G(106, 0),
-	CHAN5G(108, 0), CHAN5G(110, 0),
-	CHAN5G(112, 0), CHAN5G(114, 0),
-	CHAN5G(116, 0), CHAN5G(118, 0),
-	CHAN5G(120, 0), CHAN5G(122, 0),
-	CHAN5G(124, 0), CHAN5G(126, 0),
-	CHAN5G(128, 0), CHAN5G(130, 0),
-	CHAN5G(132, 0), CHAN5G(134, 0),
-	CHAN5G(136, 0), CHAN5G(138, 0),
-	CHAN5G(140, 0), CHAN5G(142, 0),
-	CHAN5G(144, 0), CHAN5G(145, 0),
-	CHAN5G(146, 0), CHAN5G(147, 0),
-	CHAN5G(148, 0), CHAN5G(149, 0),
-	CHAN5G(150, 0), CHAN5G(151, 0),
-	CHAN5G(152, 0), CHAN5G(153, 0),
-	CHAN5G(154, 0), CHAN5G(155, 0),
-	CHAN5G(156, 0), CHAN5G(157, 0),
-	CHAN5G(158, 0), CHAN5G(159, 0),
-	CHAN5G(160, 0), CHAN5G(161, 0),
-	CHAN5G(162, 0), CHAN5G(163, 0),
-	CHAN5G(164, 0), CHAN5G(165, 0),
-	CHAN5G(166, 0), CHAN5G(168, 0),
-	CHAN5G(170, 0), CHAN5G(172, 0),
-	CHAN5G(174, 0), CHAN5G(176, 0),
-	CHAN5G(178, 0), CHAN5G(180, 0),
-	CHAN5G(182, 0), CHAN5G(184, 0),
-	CHAN5G(186, 0), CHAN5G(188, 0),
-	CHAN5G(190, 0), CHAN5G(192, 0),
-	CHAN5G(194, 0), CHAN5G(196, 0),
-	CHAN5G(198, 0), CHAN5G(200, 0),
-	CHAN5G(202, 0), CHAN5G(204, 0),
-	CHAN5G(206, 0), CHAN5G(208, 0),
-	CHAN5G(210, 0), CHAN5G(212, 0),
-	CHAN5G(214, 0), CHAN5G(216, 0),
-	CHAN5G(218, 0), CHAN5G(220, 0),
-	CHAN5G(222, 0), CHAN5G(224, 0),
-	CHAN5G(226, 0), CHAN5G(228, 0),
-};
-
 static struct ieee80211_supported_band __wl_band_2ghz = {
 	.band = IEEE80211_BAND_2GHZ,
 	.channels = __wl_2ghz_channels,
@@ -256,12 +200,28 @@ static struct ieee80211_supported_band __wl_band_5ghz_a = {
 	.n_bitrates = wl_a_rates_size,
 };
 
-static struct ieee80211_supported_band __wl_band_5ghz_n = {
-	.band = IEEE80211_BAND_5GHZ,
-	.channels = __wl_5ghz_n_channels,
-	.n_channels = ARRAY_SIZE(__wl_5ghz_n_channels),
-	.bitrates = wl_a_rates,
-	.n_bitrates = wl_a_rates_size,
+/* This is to override regulatory domains defined in cfg80211 module (reg.c)
+ * By default world regulatory domain defined in reg.c puts the flags
+ * NL80211_RRF_PASSIVE_SCAN and NL80211_RRF_NO_IBSS for 5GHz channels (for
+ * 36..48 and 149..165). With respect to these flags, wpa_supplicant doesn't
+ * start p2p operations on 5GHz channels. All the changes in world regulatory
+ * domain are to be done here.
+ */
+static const struct ieee80211_regdomain brcmf_regdom = {
+	.n_reg_rules = 4,
+	.alpha2 =  "99",
+	.reg_rules = {
+		/* IEEE 802.11b/g, channels 1..11 */
+		REG_RULE(2412-10, 2472+10, 40, 6, 20, 0),
+		/* If any */
+		/* IEEE 802.11 channel 14 - Only JP enables
+		 * this and for 802.11b only
+		 */
+		REG_RULE(2484-10, 2484+10, 20, 6, 20, 0),
+		/* IEEE 802.11a, channel 36..64 */
+		REG_RULE(5150-10, 5350+10, 40, 6, 20, 0),
+		/* IEEE 802.11a, channel 100..165 */
+		REG_RULE(5470-10, 5850+10, 40, 6, 20, 0), }
 };
 
 static const u32 __wl_cipher_suites[] = {
@@ -375,22 +335,16 @@ static u8 brcmf_mw_to_qdbm(u16 mw)
 	return qdbm;
 }
 
-u16 channel_to_chanspec(struct ieee80211_channel *ch)
+u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
+			struct ieee80211_channel *ch)
 {
-	u16 chanspec;
+	struct brcmu_chan ch_inf;
 
-	chanspec = ieee80211_frequency_to_channel(ch->center_freq);
-	chanspec &= WL_CHANSPEC_CHAN_MASK;
+	ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq);
+	ch_inf.bw = BRCMU_CHAN_BW_20;
+	d11inf->encchspec(&ch_inf);
 
-	if (ch->band == IEEE80211_BAND_2GHZ)
-		chanspec |= WL_CHANSPEC_BAND_2G;
-	else
-		chanspec |= WL_CHANSPEC_BAND_5G;
-
-	chanspec |= WL_CHANSPEC_BW_20;
-	chanspec |= WL_CHANSPEC_CTL_SB_NONE;
-
-	return chanspec;
+	return ch_inf.chspec;
 }
 
 /* Traverse a string of 1-byte tag/1-byte length/variable-length value
@@ -523,17 +477,16 @@ static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
 		return ERR_PTR(-EOPNOTSUPP);
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_P2P_GO:
+	case NL80211_IFTYPE_P2P_DEVICE:
 		return brcmf_p2p_add_vif(wiphy, name, type, flags, params);
 	case NL80211_IFTYPE_UNSPECIFIED:
-	case NL80211_IFTYPE_P2P_DEVICE:
 	default:
 		return ERR_PTR(-EINVAL);
 	}
 }
 
-void brcmf_set_mpc(struct net_device *ndev, int mpc)
+void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
 {
-	struct brcmf_if *ifp = netdev_priv(ndev);
 	s32 err = 0;
 
 	if (check_vif_up(ifp->vif)) {
@@ -546,10 +499,9 @@ void brcmf_set_mpc(struct net_device *ndev, int mpc)
 	}
 }
 
-s32
-brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
-			    struct net_device *ndev,
-			    bool aborted, bool fw_abort)
+s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
+				struct brcmf_if *ifp, bool aborted,
+				bool fw_abort)
 {
 	struct brcmf_scan_params_le params_le;
 	struct cfg80211_scan_request *scan_request;
@@ -580,7 +532,7 @@ brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 		/* Scan is aborted by setting channel_list[0] to -1 */
 		params_le.channel_list[0] = cpu_to_le16(-1);
 		/* E-Scan (or anyother type) can be aborted by SCAN */
-		err = brcmf_fil_cmd_data_set(netdev_priv(ndev), BRCMF_C_SCAN,
+		err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
 					     &params_le, sizeof(params_le));
 		if (err)
 			brcmf_err("Scan abort  failed\n");
@@ -594,12 +546,12 @@ brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 		cfg->sched_escan = false;
 		if (!aborted)
 			cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
-		brcmf_set_mpc(ndev, 1);
+		brcmf_set_mpc(ifp, 1);
 	} else if (scan_request) {
 		brcmf_dbg(SCAN, "ESCAN Completed scan: %s\n",
 			  aborted ? "Aborted" : "Done");
 		cfg80211_scan_done(scan_request, aborted);
-		brcmf_set_mpc(ndev, 1);
+		brcmf_set_mpc(ifp, 1);
 	}
 	if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
 		brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");
@@ -619,9 +571,9 @@ int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 
 	if (ndev) {
 		if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status) &&
-		    cfg->escan_info.ndev == ndev)
-			brcmf_notify_escan_complete(cfg, ndev, true,
-						    true);
+		    cfg->escan_info.ifp == netdev_priv(ndev))
+			brcmf_notify_escan_complete(cfg, netdev_priv(ndev),
+						    true, true);
 
 		brcmf_fil_iovar_int_set(netdev_priv(ndev), "mpc", 1);
 	}
@@ -637,9 +589,9 @@ int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 		return -EOPNOTSUPP;
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_P2P_GO:
+	case NL80211_IFTYPE_P2P_DEVICE:
 		return brcmf_p2p_del_vif(wiphy, wdev);
 	case NL80211_IFTYPE_UNSPECIFIED:
-	case NL80211_IFTYPE_P2P_DEVICE:
 	default:
 		return -EINVAL;
 	}
@@ -723,7 +675,8 @@ done:
 	return err;
 }
 
-static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
+static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
+			     struct brcmf_scan_params_le *params_le,
 			     struct cfg80211_scan_request *request)
 {
 	u32 n_ssids;
@@ -755,7 +708,8 @@ static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
 		  n_channels);
 	if (n_channels > 0) {
 		for (i = 0; i < n_channels; i++) {
-			chanspec = channel_to_chanspec(request->channels[i]);
+			chanspec = channel_to_chanspec(&cfg->d11inf,
+						       request->channels[i]);
 			brcmf_dbg(SCAN, "Chan : %d, Channel spec: %x\n",
 				  request->channels[i]->hw_value, chanspec);
 			params_le->channel_list[i] = cpu_to_le16(chanspec);
@@ -803,7 +757,7 @@ static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
 }
 
 static s32
-brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct net_device *ndev,
+brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
 		struct cfg80211_scan_request *request, u16 action)
 {
 	s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
@@ -827,13 +781,12 @@ brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct net_device *ndev,
 		goto exit;
 	}
 	BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
-	brcmf_escan_prep(&params->params_le, request);
+	brcmf_escan_prep(cfg, &params->params_le, request);
 	params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
 	params->action = cpu_to_le16(action);
 	params->sync_id = cpu_to_le16(0x1234);
 
-	err = brcmf_fil_iovar_data_set(netdev_priv(ndev), "escan",
-				       params, params_size);
+	err = brcmf_fil_iovar_data_set(ifp, "escan", params, params_size);
 	if (err) {
 		if (err == -EBUSY)
 			brcmf_dbg(INFO, "system busy : escan canceled\n");
@@ -848,7 +801,7 @@ exit:
 
 static s32
 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
-	       struct net_device *ndev, struct cfg80211_scan_request *request)
+	       struct brcmf_if *ifp, struct cfg80211_scan_request *request)
 {
 	s32 err;
 	u32 passive_scan;
@@ -856,35 +809,35 @@ brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
 	struct escan_info *escan = &cfg->escan_info;
 
 	brcmf_dbg(SCAN, "Enter\n");
-	escan->ndev = ndev;
+	escan->ifp = ifp;
 	escan->wiphy = wiphy;
 	escan->escan_state = WL_ESCAN_STATE_SCANNING;
 	passive_scan = cfg->active_scan ? 0 : 1;
-	err = brcmf_fil_cmd_int_set(netdev_priv(ndev), BRCMF_C_SET_PASSIVE_SCAN,
+	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
 				    passive_scan);
 	if (err) {
 		brcmf_err("error (%d)\n", err);
 		return err;
 	}
-	brcmf_set_mpc(ndev, 0);
+	brcmf_set_mpc(ifp, 0);
 	results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
 	results->version = 0;
 	results->count = 0;
 	results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
 
-	err = escan->run(cfg, ndev, request, WL_ESCAN_ACTION_START);
+	err = escan->run(cfg, ifp, request, WL_ESCAN_ACTION_START);
 	if (err)
-		brcmf_set_mpc(ndev, 1);
+		brcmf_set_mpc(ifp, 1);
 	return err;
 }
 
 static s32
-brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
+brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
 		     struct cfg80211_scan_request *request,
 		     struct cfg80211_ssid *this_ssid)
 {
-	struct brcmf_if *ifp = netdev_priv(ndev);
-	struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
+	struct brcmf_if *ifp = vif->ifp;
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct cfg80211_ssid *ssids;
 	struct brcmf_cfg80211_scan_req *sr = &cfg->scan_req_int;
 	u32 passive_scan;
@@ -904,16 +857,19 @@ brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
 			  cfg->scan_status);
 		return -EAGAIN;
 	}
+	if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
+		brcmf_err("Scanning suppressed: status (%lu)\n",
+			  cfg->scan_status);
+		return -EAGAIN;
+	}
 	if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
 		brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
 		return -EAGAIN;
 	}
 
 	/* If scan req comes for p2p0, send it over primary I/F */
-	if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif) {
-		ifp = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
-		ndev = ifp->ndev;
-	}
+	if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif)
+		vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
 
 	/* Arm scan timeout timer */
 	mod_timer(&cfg->escan_timeout, jiffies +
@@ -934,11 +890,11 @@ brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
 	set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
 	if (escan_req) {
 		cfg->escan_info.run = brcmf_run_escan;
-		err = brcmf_p2p_scan_prep(wiphy, request, ifp->vif);
+		err = brcmf_p2p_scan_prep(wiphy, request, vif);
 		if (err)
 			goto scan_out;
 
-		err = brcmf_do_escan(cfg, wiphy, ndev, request);
+		err = brcmf_do_escan(cfg, wiphy, vif->ifp, request);
 		if (err)
 			goto scan_out;
 	} else {
@@ -962,7 +918,7 @@ brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
 			brcmf_err("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
 			goto scan_out;
 		}
-		brcmf_set_mpc(ndev, 0);
+		brcmf_set_mpc(ifp, 0);
 		err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
 					     &sr->ssid_le, sizeof(sr->ssid_le));
 		if (err) {
@@ -972,7 +928,7 @@ brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
 			else
 				brcmf_err("WLC_SCAN error (%d)\n", err);
 
-			brcmf_set_mpc(ndev, 1);
+			brcmf_set_mpc(ifp, 1);
 			goto scan_out;
 		}
 	}
@@ -990,16 +946,15 @@ scan_out:
 static s32
 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 {
-	struct net_device *ndev = request->wdev->netdev;
+	struct brcmf_cfg80211_vif *vif;
 	s32 err = 0;
 
 	brcmf_dbg(TRACE, "Enter\n");
-
-	if (!check_vif_up(container_of(request->wdev,
-				       struct brcmf_cfg80211_vif, wdev)))
+	vif = container_of(request->wdev, struct brcmf_cfg80211_vif, wdev);
+	if (!check_vif_up(vif))
 		return -EIO;
 
-	err = brcmf_cfg80211_escan(wiphy, ndev, request, NULL);
+	err = brcmf_cfg80211_escan(wiphy, vif, request, NULL);
 
 	if (err)
 		brcmf_err("scan error (%d)\n", err);
@@ -1097,6 +1052,7 @@ static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
 
 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
 {
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
 	s32 err = 0;
 
 	brcmf_dbg(TRACE, "Enter\n");
@@ -1110,6 +1066,8 @@ static void brcmf_link_down(struct brcmf_cfg80211_vif *vif)
 		clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state);
 	}
 	clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
+	clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
+	brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
 	brcmf_dbg(TRACE, "Exit\n");
 }
 
@@ -1229,7 +1187,8 @@ brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
 				params->chandef.chan->center_freq);
 		if (params->channel_fixed) {
 			/* adding chanspec */
-			chanspec = channel_to_chanspec(params->chandef.chan);
+			chanspec = channel_to_chanspec(&cfg->d11inf,
+						       params->chandef.chan);
 			join_params.params_le.chanspec_list[0] =
 				cpu_to_le16(chanspec);
 			join_params.params_le.chanspec_num = cpu_to_le32(1);
@@ -1619,7 +1578,7 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 	if (chan) {
 		cfg->channel =
 			ieee80211_frequency_to_channel(chan->center_freq);
-		chanspec = channel_to_chanspec(chan);
+		chanspec = channel_to_chanspec(&cfg->d11inf, chan);
 		brcmf_dbg(CONN, "channel=%d, center_req=%d, chanspec=0x%04x\n",
 			  cfg->channel, chan->center_freq, chanspec);
 	} else {
@@ -2278,6 +2237,7 @@ static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
 	struct ieee80211_channel *notify_channel;
 	struct cfg80211_bss *bss;
 	struct ieee80211_supported_band *band;
+	struct brcmu_chan ch;
 	s32 err = 0;
 	u16 channel;
 	u32 freq;
@@ -2292,8 +2252,12 @@ static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
 		return 0;
 	}
 
-	channel = bi->ctl_ch ? bi->ctl_ch :
-				CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
+	if (!bi->ctl_ch) {
+		ch.chspec = le16_to_cpu(bi->chanspec);
+		cfg->d11inf.decchspec(&ch);
+		bi->ctl_ch = ch.chnum;
+	}
+	channel = bi->ctl_ch;
 
 	if (channel <= CH_MAX_2G_CHANNEL)
 		band = wiphy->bands[IEEE80211_BAND_2GHZ];
@@ -2368,9 +2332,9 @@ static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
 	struct brcmf_bss_info_le *bi = NULL;
 	struct ieee80211_supported_band *band;
 	struct cfg80211_bss *bss;
+	struct brcmu_chan ch;
 	u8 *buf = NULL;
 	s32 err = 0;
-	u16 channel;
 	u32 freq;
 	u16 notify_capability;
 	u16 notify_interval;
@@ -2397,15 +2361,15 @@ static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
 
 	bi = (struct brcmf_bss_info_le *)(buf + 4);
 
-	channel = bi->ctl_ch ? bi->ctl_ch :
-				CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
+	ch.chspec = le16_to_cpu(bi->chanspec);
+	cfg->d11inf.decchspec(&ch);
 
-	if (channel <= CH_MAX_2G_CHANNEL)
+	if (ch.band == BRCMU_CHAN_BAND_2G)
 		band = wiphy->bands[IEEE80211_BAND_2GHZ];
 	else
 		band = wiphy->bands[IEEE80211_BAND_5GHZ];
 
-	freq = ieee80211_channel_to_frequency(channel, band->band);
+	freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
 	notify_channel = ieee80211_get_channel(wiphy, freq);
 
 	notify_capability = le16_to_cpu(bi->capability);
@@ -2414,7 +2378,7 @@ static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
 	notify_ielen = le32_to_cpu(bi->ie_length);
 	notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
 
-	brcmf_dbg(CONN, "channel: %d(%d)\n", channel, freq);
+	brcmf_dbg(CONN, "channel: %d(%d)\n", ch.chnum, freq);
 	brcmf_dbg(CONN, "capability: %X\n", notify_capability);
 	brcmf_dbg(CONN, "beacon interval: %d\n", notify_interval);
 	brcmf_dbg(CONN, "signal: %d\n", notify_signal);
@@ -2510,7 +2474,7 @@ void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
 	set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
 	if (cfg->scan_request) {
 		escan->escan_state = WL_ESCAN_STATE_IDLE;
-		brcmf_notify_escan_complete(cfg, escan->ndev, true, true);
+		brcmf_notify_escan_complete(cfg, escan->ifp, true, true);
 	}
 	clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
 	clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
@@ -2522,7 +2486,7 @@ static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
 			container_of(work, struct brcmf_cfg80211_info,
 				     escan_timeout_work);
 
-	brcmf_notify_escan_complete(cfg, cfg->escan_info.ndev, true, true);
+	brcmf_notify_escan_complete(cfg, cfg->escan_info.ifp, true, true);
 }
 
 static void brcmf_escan_timeout(unsigned long data)
@@ -2537,12 +2501,19 @@ static void brcmf_escan_timeout(unsigned long data)
 }
 
 static s32
-brcmf_compare_update_same_bss(struct brcmf_bss_info_le *bss,
+brcmf_compare_update_same_bss(struct brcmf_cfg80211_info *cfg,
+			      struct brcmf_bss_info_le *bss,
 			      struct brcmf_bss_info_le *bss_info_le)
 {
+	struct brcmu_chan ch_bss, ch_bss_info_le;
+
+	ch_bss.chspec = le16_to_cpu(bss->chanspec);
+	cfg->d11inf.decchspec(&ch_bss);
+	ch_bss_info_le.chspec = le16_to_cpu(bss_info_le->chanspec);
+	cfg->d11inf.decchspec(&ch_bss_info_le);
+
 	if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
-		(CHSPEC_BAND(le16_to_cpu(bss_info_le->chanspec)) ==
-		CHSPEC_BAND(le16_to_cpu(bss->chanspec))) &&
+		ch_bss.band == ch_bss_info_le.band &&
 		bss_info_le->SSID_len == bss->SSID_len &&
 		!memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
 		if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) ==
@@ -2573,7 +2544,6 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 			     const struct brcmf_event_msg *e, void *data)
 {
 	struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
-	struct net_device *ndev = ifp->ndev;
 	s32 status;
 	s32 err = 0;
 	struct brcmf_escan_result_le *escan_result_le;
@@ -2586,9 +2556,8 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 
 	status = e->status;
 
-	if (!ndev || !test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
-		brcmf_err("scan not ready ndev %p drv_status %x\n", ndev,
-			  !test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status));
+	if (!test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
+		brcmf_err("scan not ready, bssidx=%d\n", ifp->bssidx);
 		return -EPERM;
 	}
 
@@ -2642,7 +2611,8 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 			bss = bss ? (struct brcmf_bss_info_le *)
 				((unsigned char *)bss +
 				le32_to_cpu(bss->length)) : list->bss_info_le;
-			if (brcmf_compare_update_same_bss(bss, bss_info_le))
+			if (brcmf_compare_update_same_bss(cfg, bss,
+							  bss_info_le))
 				goto exit;
 		}
 		memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
@@ -2659,7 +2629,7 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 				cfg->escan_info.escan_buf;
 			brcmf_inform_bss(cfg);
 			aborted = status != BRCMF_E_STATUS_SUCCESS;
-			brcmf_notify_escan_complete(cfg, ndev, aborted,
+			brcmf_notify_escan_complete(cfg, ifp, aborted,
 						    false);
 		} else
 			brcmf_dbg(SCAN, "Ignored scan complete result 0x%x\n",
@@ -2737,7 +2707,7 @@ static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
 		brcmf_abort_scanning(cfg);
 
 	/* Turn off watchdog timer */
-	brcmf_set_mpc(ndev, 1);
+	brcmf_set_mpc(netdev_priv(ndev), 1);
 
 exit:
 	brcmf_dbg(TRACE, "Exit\n");
@@ -2895,7 +2865,6 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 				const struct brcmf_event_msg *e, void *data)
 {
 	struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
-	struct net_device *ndev = ifp->ndev;
 	struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
 	struct cfg80211_scan_request *request = NULL;
 	struct cfg80211_ssid *ssid = NULL;
@@ -2979,7 +2948,7 @@ brcmf_notify_sched_scan_results(struct brcmf_if *ifp,
 		}
 
 		set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
-		err = brcmf_do_escan(cfg, wiphy, ndev, request);
+		err = brcmf_do_escan(cfg, wiphy, ifp, request);
 		if (err) {
 			clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
 			goto out_err;
@@ -3051,16 +3020,21 @@ brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
 	int i;
 	int ret = 0;
 
-	brcmf_dbg(SCAN, "Enter n_match_sets:%d   n_ssids:%d\n",
+	brcmf_dbg(SCAN, "Enter n_match_sets:%d n_ssids:%d\n",
 		  request->n_match_sets, request->n_ssids);
 	if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
 		brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
 		return -EAGAIN;
 	}
+	if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
+		brcmf_err("Scanning suppressed: status (%lu)\n",
+			  cfg->scan_status);
+		return -EAGAIN;
+	}
 
-	if (!request || !request->n_ssids || !request->n_match_sets) {
+	if (!request->n_ssids || !request->n_match_sets) {
 		brcmf_err("Invalid sched scan req!! n_ssids:%d\n",
-			  request ? request->n_ssids : 0);
+			  request->n_ssids);
 		return -EINVAL;
 	}
 
@@ -3136,7 +3110,7 @@ static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
 	brcmf_dbg(SCAN, "enter\n");
 	brcmf_dev_pno_clean(ndev);
 	if (cfg->sched_escan)
-		brcmf_notify_escan_complete(cfg, ndev, true, true);
+		brcmf_notify_escan_complete(cfg, netdev_priv(ndev), true, true);
 	return 0;
 }
 
@@ -3708,7 +3682,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
 		ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
 	}
 
-	brcmf_set_mpc(ndev, 0);
+	brcmf_set_mpc(ifp, 0);
 
 	/* find the RSN_IE */
 	rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
@@ -3816,7 +3790,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
 
 exit:
 	if (err)
-		brcmf_set_mpc(ndev, 1);
+		brcmf_set_mpc(ifp, 1);
 	return err;
 }
 
@@ -3856,7 +3830,7 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
 		if (err < 0)
 			brcmf_err("bss_enable config failed %d\n", err);
 	}
-	brcmf_set_mpc(ndev, 1);
+	brcmf_set_mpc(ifp, 1);
 	set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
 	clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
 
@@ -3913,13 +3887,13 @@ brcmf_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 				   struct wireless_dev *wdev,
 				   u16 frame_type, bool reg)
 {
-	struct brcmf_if *ifp = netdev_priv(wdev->netdev);
-	struct brcmf_cfg80211_vif *vif = ifp->vif;
+	struct brcmf_cfg80211_vif *vif;
 	u16 mgmt_type;
 
 	brcmf_dbg(TRACE, "Enter, frame_type %04x, reg=%d\n", frame_type, reg);
 
 	mgmt_type = (frame_type & IEEE80211_FCTL_STYPE) >> 4;
+	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
 	if (reg)
 		vif->mgmt_rx_reg |= BIT(mgmt_type);
 	else
@@ -3935,7 +3909,6 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 {
 	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	const struct ieee80211_mgmt *mgmt;
-	struct brcmf_if *ifp;
 	struct brcmf_cfg80211_vif *vif;
 	s32 err = 0;
 	s32 ie_offset;
@@ -3971,8 +3944,7 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		ie_offset =  DOT11_MGMT_HDR_LEN +
 			     DOT11_BCN_PRB_FIXED_LEN;
 		ie_len = len - ie_offset;
-		ifp = netdev_priv(wdev->netdev);
-		vif = ifp->vif;
+		vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
 		if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
 			vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
 		err = brcmf_vif_set_mgmt_ie(vif,
@@ -4007,7 +3979,7 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 			  *cookie, le16_to_cpu(action_frame->len),
 			  chan->center_freq);
 
-		ack = brcmf_p2p_send_action_frame(cfg, wdev->netdev,
+		ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
 						  af_params);
 
 		cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, ack,
@@ -4045,6 +4017,39 @@ exit:
 	return err;
 }
 
+static int brcmf_cfg80211_crit_proto_start(struct wiphy *wiphy,
+					   struct wireless_dev *wdev,
+					   enum nl80211_crit_proto_id proto,
+					   u16 duration)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_vif *vif;
+
+	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
+
+	/* only DHCP support for now */
+	if (proto != NL80211_CRIT_PROTO_DHCP)
+		return -EINVAL;
+
+	/* suppress and abort scanning */
+	set_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
+	brcmf_abort_scanning(cfg);
+
+	return brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_DISABLED, duration);
+}
+
+static void brcmf_cfg80211_crit_proto_stop(struct wiphy *wiphy,
+					   struct wireless_dev *wdev)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_vif *vif;
+
+	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
+
+	brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
+	clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
+}
+
 static struct cfg80211_ops wl_cfg80211_ops = {
 	.add_virtual_intf = brcmf_cfg80211_add_iface,
 	.del_virtual_intf = brcmf_cfg80211_del_iface,
@@ -4079,6 +4084,10 @@ static struct cfg80211_ops wl_cfg80211_ops = {
 	.mgmt_tx = brcmf_cfg80211_mgmt_tx,
 	.remain_on_channel = brcmf_p2p_remain_on_channel,
 	.cancel_remain_on_channel = brcmf_cfg80211_cancel_remain_on_channel,
+	.start_p2p_device = brcmf_p2p_start_device,
+	.stop_p2p_device = brcmf_p2p_stop_device,
+	.crit_proto_start = brcmf_cfg80211_crit_proto_start,
+	.crit_proto_stop = brcmf_cfg80211_crit_proto_stop,
 #ifdef CONFIG_NL80211_TESTMODE
 	.testmode_cmd = brcmf_cfg80211_testmode
 #endif
@@ -4162,6 +4171,11 @@ brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
 		      BIT(IEEE80211_STYPE_AUTH >> 4) |
 		      BIT(IEEE80211_STYPE_DEAUTH >> 4) |
 		      BIT(IEEE80211_STYPE_ACTION >> 4)
+	},
+	[NL80211_IFTYPE_P2P_DEVICE] = {
+		.tx = 0xffff,
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+		      BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
 	}
 };
 
@@ -4187,13 +4201,6 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
 	wiphy->iface_combinations = brcmf_iface_combos;
 	wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
 	wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
-	wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a;	/* Set
-						* it as 11a by default.
-						* This will be updated with
-						* 11n phy tables in
-						* "ifconfig up"
-						* if phy has 11n capability
-						*/
 	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
 	wiphy->cipher_suites = __wl_cipher_suites;
 	wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
@@ -4203,6 +4210,9 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
 	wiphy->mgmt_stypes = brcmf_txrx_stypes;
 	wiphy->max_remain_on_channel_duration = 5000;
 	brcmf_wiphy_pno_params(wiphy);
+	brcmf_dbg(INFO, "Registering custom regulatory\n");
+	wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
+	wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
 	err = wiphy_register(wiphy);
 	if (err < 0) {
 		brcmf_err("Could not register wiphy device (%d)\n", err);
@@ -4386,9 +4396,9 @@ brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
 	struct ieee80211_channel *notify_channel = NULL;
 	struct ieee80211_supported_band *band;
 	struct brcmf_bss_info_le *bi;
+	struct brcmu_chan ch;
 	u32 freq;
 	s32 err = 0;
-	u32 target_channel;
 	u8 *buf;
 
 	brcmf_dbg(TRACE, "Enter\n");
@@ -4412,15 +4422,15 @@ brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
 		goto done;
 
 	bi = (struct brcmf_bss_info_le *)(buf + 4);
-	target_channel = bi->ctl_ch ? bi->ctl_ch :
-				      CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
+	ch.chspec = le16_to_cpu(bi->chanspec);
+	cfg->d11inf.decchspec(&ch);
 
-	if (target_channel <= CH_MAX_2G_CHANNEL)
+	if (ch.band == BRCMU_CHAN_BAND_2G)
 		band = wiphy->bands[IEEE80211_BAND_2GHZ];
 	else
 		band = wiphy->bands[IEEE80211_BAND_5GHZ];
 
-	freq = ieee80211_channel_to_frequency(target_channel, band->band);
+	freq = ieee80211_channel_to_frequency(ch.chnum, band->band);
 	notify_channel = ieee80211_get_channel(wiphy, freq);
 
 done:
@@ -4621,9 +4631,11 @@ static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
 
 		ifp->vif = vif;
 		vif->ifp = ifp;
-		vif->wdev.netdev = ifp->ndev;
-		ifp->ndev->ieee80211_ptr = &vif->wdev;
-		SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
+		if (ifp->ndev) {
+			vif->wdev.netdev = ifp->ndev;
+			ifp->ndev->ieee80211_ptr = &vif->wdev;
+			SET_NETDEV_DEV(ifp->ndev, wiphy_dev(cfg->wiphy));
+		}
 		mutex_unlock(&event->vif_event_lock);
 		wake_up(&event->vif_wq);
 		return 0;
@@ -4772,6 +4784,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 	struct brcmf_cfg80211_vif *vif;
 	struct brcmf_if *ifp;
 	s32 err = 0;
+	s32 io_type;
 
 	if (!ndev) {
 		brcmf_err("ndev is invalid\n");
@@ -4812,6 +4825,21 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 		brcmf_err("P2P initilisation failed (%d)\n", err);
 		goto cfg80211_p2p_attach_out;
 	}
+	err = brcmf_btcoex_attach(cfg);
+	if (err) {
+		brcmf_err("BT-coex initialisation failed (%d)\n", err);
+		brcmf_p2p_detach(&cfg->p2p);
+		goto cfg80211_p2p_attach_out;
+	}
+
+	err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_VERSION,
+				    &io_type);
+	if (err) {
+		brcmf_err("Failed to get D11 version (%d)\n", err);
+		goto cfg80211_p2p_attach_out;
+	}
+	cfg->d11inf.io_type = (u8)io_type;
+	brcmu_d11_attach(&cfg->d11inf);
 
 	return cfg;
 
@@ -4830,6 +4858,7 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
 	struct brcmf_cfg80211_vif *tmp;
 
 	wl_deinit_priv(cfg);
+	brcmf_btcoex_detach(cfg);
 	list_for_each_entry_safe(vif, tmp, &cfg->vif_list, list) {
 		brcmf_free_vif(vif);
 	}
@@ -4926,34 +4955,234 @@ dongle_scantime_out:
 	return err;
 }
 
-static s32 wl_update_wiphybands(struct brcmf_cfg80211_info *cfg)
+
+static s32 brcmf_construct_reginfo(struct brcmf_cfg80211_info *cfg, u32 bw_cap)
+{
+	struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
+	struct ieee80211_channel *band_chan_arr;
+	struct brcmf_chanspec_list *list;
+	struct brcmu_chan ch;
+	s32 err;
+	u8 *pbuf;
+	u32 i, j;
+	u32 total;
+	enum ieee80211_band band;
+	u32 channel;
+	u32 *n_cnt;
+	bool ht40_allowed;
+	u32 index;
+	u32 ht40_flag;
+	bool update;
+	u32 array_size;
+
+	pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
+
+	if (pbuf == NULL)
+		return -ENOMEM;
+
+	list = (struct brcmf_chanspec_list *)pbuf;
+
+	err = brcmf_fil_iovar_data_get(ifp, "chanspecs", pbuf,
+				       BRCMF_DCMD_MEDLEN);
+	if (err) {
+		brcmf_err("get chanspecs error (%d)\n", err);
+		goto exit;
+	}
+
+	__wl_band_2ghz.n_channels = 0;
+	__wl_band_5ghz_a.n_channels = 0;
+
+	total = le32_to_cpu(list->count);
+	for (i = 0; i < total; i++) {
+		ch.chspec = (u16)le32_to_cpu(list->element[i]);
+		cfg->d11inf.decchspec(&ch);
+
+		if (ch.band == BRCMU_CHAN_BAND_2G) {
+			band_chan_arr = __wl_2ghz_channels;
+			array_size = ARRAY_SIZE(__wl_2ghz_channels);
+			n_cnt = &__wl_band_2ghz.n_channels;
+			band = IEEE80211_BAND_2GHZ;
+			ht40_allowed = (bw_cap == WLC_N_BW_40ALL);
+		} else if (ch.band == BRCMU_CHAN_BAND_5G) {
+			band_chan_arr = __wl_5ghz_a_channels;
+			array_size = ARRAY_SIZE(__wl_5ghz_a_channels);
+			n_cnt = &__wl_band_5ghz_a.n_channels;
+			band = IEEE80211_BAND_5GHZ;
+			ht40_allowed = !(bw_cap == WLC_N_BW_20ALL);
+		} else {
+			brcmf_err("Invalid channel Sepc. 0x%x.\n", ch.chspec);
+			continue;
+		}
+		if (!ht40_allowed && ch.bw == BRCMU_CHAN_BW_40)
+			continue;
+		update = false;
+		for (j = 0; (j < *n_cnt && (*n_cnt < array_size)); j++) {
+			if (band_chan_arr[j].hw_value == ch.chnum) {
+				update = true;
+				break;
+			}
+		}
+		if (update)
+			index = j;
+		else
+			index = *n_cnt;
+		if (index <  array_size) {
+			band_chan_arr[index].center_freq =
+				ieee80211_channel_to_frequency(ch.chnum, band);
+			band_chan_arr[index].hw_value = ch.chnum;
+
+			if (ch.bw == BRCMU_CHAN_BW_40 && ht40_allowed) {
+				/* assuming the order is HT20, HT40 Upper,
+				 * HT40 lower from chanspecs
+				 */
+				ht40_flag = band_chan_arr[index].flags &
+					    IEEE80211_CHAN_NO_HT40;
+				if (ch.sb == BRCMU_CHAN_SB_U) {
+					if (ht40_flag == IEEE80211_CHAN_NO_HT40)
+						band_chan_arr[index].flags &=
+							~IEEE80211_CHAN_NO_HT40;
+					band_chan_arr[index].flags |=
+						IEEE80211_CHAN_NO_HT40PLUS;
+				} else {
+					/* It should be one of
+					 * IEEE80211_CHAN_NO_HT40 or
+					 * IEEE80211_CHAN_NO_HT40PLUS
+					 */
+					band_chan_arr[index].flags &=
+							~IEEE80211_CHAN_NO_HT40;
+					if (ht40_flag == IEEE80211_CHAN_NO_HT40)
+						band_chan_arr[index].flags |=
+						    IEEE80211_CHAN_NO_HT40MINUS;
+				}
+			} else {
+				band_chan_arr[index].flags =
+							IEEE80211_CHAN_NO_HT40;
+				ch.bw = BRCMU_CHAN_BW_20;
+				cfg->d11inf.encchspec(&ch);
+				channel = ch.chspec;
+				err = brcmf_fil_bsscfg_int_get(ifp,
+							       "per_chan_info",
+							       &channel);
+				if (!err) {
+					if (channel & WL_CHAN_RADAR)
+						band_chan_arr[index].flags |=
+							(IEEE80211_CHAN_RADAR |
+							IEEE80211_CHAN_NO_IBSS);
+					if (channel & WL_CHAN_PASSIVE)
+						band_chan_arr[index].flags |=
+						    IEEE80211_CHAN_PASSIVE_SCAN;
+				}
+			}
+			if (!update)
+				(*n_cnt)++;
+		}
+	}
+exit:
+	kfree(pbuf);
+	return err;
+}
+
+
+static s32 brcmf_update_wiphybands(struct brcmf_cfg80211_info *cfg)
 {
 	struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
 	struct wiphy *wiphy;
 	s32 phy_list;
+	u32 band_list[3];
+	u32 nmode;
+	u32 bw_cap = 0;
 	s8 phy;
-	s32 err = 0;
+	s32 err;
+	u32 nband;
+	s32 i;
+	struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
+	s32 index;
 
 	err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_PHYLIST,
 				     &phy_list, sizeof(phy_list));
 	if (err) {
-		brcmf_err("error (%d)\n", err);
+		brcmf_err("BRCMF_C_GET_PHYLIST error (%d)\n", err);
 		return err;
 	}
 
 	phy = ((char *)&phy_list)[0];
-	brcmf_dbg(INFO, "%c phy\n", phy);
-	if (phy == 'n' || phy == 'a') {
-		wiphy = cfg_to_wiphy(cfg);
-		wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_n;
+	brcmf_dbg(INFO, "BRCMF_C_GET_PHYLIST reported: %c phy\n", phy);
+
+
+	err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BANDLIST,
+				     &band_list, sizeof(band_list));
+	if (err) {
+		brcmf_err("BRCMF_C_GET_BANDLIST error (%d)\n", err);
+		return err;
+	}
+	brcmf_dbg(INFO, "BRCMF_C_GET_BANDLIST reported: 0x%08x 0x%08x 0x%08x phy\n",
+		  band_list[0], band_list[1], band_list[2]);
+
+	err = brcmf_fil_iovar_int_get(ifp, "nmode", &nmode);
+	if (err) {
+		brcmf_err("nmode error (%d)\n", err);
+	} else {
+		err = brcmf_fil_iovar_int_get(ifp, "mimo_bw_cap", &bw_cap);
+		if (err)
+			brcmf_err("mimo_bw_cap error (%d)\n", err);
 	}
+	brcmf_dbg(INFO, "nmode=%d, mimo_bw_cap=%d\n", nmode, bw_cap);
+
+	err = brcmf_construct_reginfo(cfg, bw_cap);
+	if (err) {
+		brcmf_err("brcmf_construct_reginfo failed (%d)\n", err);
+		return err;
+	}
+
+	nband = band_list[0];
+	memset(bands, 0, sizeof(bands));
+
+	for (i = 1; i <= nband && i < ARRAY_SIZE(band_list); i++) {
+		index = -1;
+		if ((band_list[i] == WLC_BAND_5G) &&
+		    (__wl_band_5ghz_a.n_channels > 0)) {
+			index = IEEE80211_BAND_5GHZ;
+			bands[index] = &__wl_band_5ghz_a;
+			if ((bw_cap == WLC_N_BW_40ALL) ||
+			    (bw_cap == WLC_N_BW_20IN2G_40IN5G))
+				bands[index]->ht_cap.cap |=
+							IEEE80211_HT_CAP_SGI_40;
+		} else if ((band_list[i] == WLC_BAND_2G) &&
+			   (__wl_band_2ghz.n_channels > 0)) {
+			index = IEEE80211_BAND_2GHZ;
+			bands[index] = &__wl_band_2ghz;
+			if (bw_cap == WLC_N_BW_40ALL)
+				bands[index]->ht_cap.cap |=
+							IEEE80211_HT_CAP_SGI_40;
+		}
+
+		if ((index >= 0) && nmode) {
+			bands[index]->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
+			bands[index]->ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
+			bands[index]->ht_cap.ht_supported = true;
+			bands[index]->ht_cap.ampdu_factor =
+						IEEE80211_HT_MAX_AMPDU_64K;
+			bands[index]->ht_cap.ampdu_density =
+						IEEE80211_HT_MPDU_DENSITY_16;
+			/* An HT shall support all EQM rates for one spatial
+			 * stream
+			 */
+			bands[index]->ht_cap.mcs.rx_mask[0] = 0xff;
+		}
+	}
+
+	wiphy = cfg_to_wiphy(cfg);
+	wiphy->bands[IEEE80211_BAND_2GHZ] = bands[IEEE80211_BAND_2GHZ];
+	wiphy->bands[IEEE80211_BAND_5GHZ] = bands[IEEE80211_BAND_5GHZ];
+	wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);
 
 	return err;
 }
 
+
 static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_info *cfg)
 {
-	return wl_update_wiphybands(cfg);
+	return brcmf_update_wiphybands(cfg);
 }
 
 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
@@ -5059,6 +5288,13 @@ s32 brcmf_cfg80211_down(struct net_device *ndev)
 	return err;
 }
 
+enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp)
+{
+	struct wireless_dev *wdev = &ifp->vif->wdev;
+
+	return wdev->iftype;
+}
+
 u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state)
 {
 	struct brcmf_cfg80211_vif *vif;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
index 8b5d4989906c..a71cff84cdcf 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
@@ -17,6 +17,9 @@
 #ifndef _wl_cfg80211_h_
 #define _wl_cfg80211_h_
 
+/* for brcmu_d11inf */
+#include <brcmu_d11.h>
+
 #define WL_NUM_SCAN_MAX			10
 #define WL_NUM_PMKIDS_MAX		MAXPMKID
 #define WL_TLV_INFO_MAX			1024
@@ -74,14 +77,16 @@
 
 
 /**
- * enum brcmf_scan_status - dongle scan status
+ * enum brcmf_scan_status - scan engine status
  *
  * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
  * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
+ * @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
  */
 enum brcmf_scan_status {
 	BRCMF_SCAN_STATUS_BUSY,
 	BRCMF_SCAN_STATUS_ABORT,
+	BRCMF_SCAN_STATUS_SUPPRESS,
 };
 
 /**
@@ -238,9 +243,8 @@ struct escan_info {
 	u32 escan_state;
 	u8 escan_buf[WL_ESCAN_BUF_SIZE];
 	struct wiphy *wiphy;
-	struct net_device *ndev;
-	s32 (*run)(struct brcmf_cfg80211_info *cfg,
-		   struct net_device *ndev,
+	struct brcmf_if *ifp;
+	s32 (*run)(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp,
 		   struct cfg80211_scan_request *request, u16 action);
 };
 
@@ -347,6 +351,7 @@ struct brcmf_cfg80211_vif_event {
  * @wiphy: wiphy object for cfg80211 interface.
  * @conf: dongle configuration.
  * @p2p: peer-to-peer specific information.
+ * @btcoex: Bluetooth coexistence information.
  * @scan_request: cfg80211 scan request object.
  * @usr_sync: mainly for dongle up/down synchronization.
  * @bss_list: bss_list holding scanned ap information.
@@ -380,6 +385,7 @@ struct brcmf_cfg80211_info {
 	struct wiphy *wiphy;
 	struct brcmf_cfg80211_conf *conf;
 	struct brcmf_p2p_info p2p;
+	struct brcmf_btcoex_info *btcoex;
 	struct cfg80211_scan_request *scan_request;
 	struct mutex usr_sync;
 	struct brcmf_scan_results *bss_list;
@@ -409,6 +415,7 @@ struct brcmf_cfg80211_info {
 	u8 vif_cnt;
 	struct brcmf_cfg80211_vif_event vif_event;
 	struct completion vif_disabled;
+	struct brcmu_d11inf d11inf;
 };
 
 /**
@@ -475,6 +482,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
 s32 brcmf_cfg80211_up(struct net_device *ndev);
 s32 brcmf_cfg80211_down(struct net_device *ndev);
+enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp);
 
 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
 					   enum nl80211_iftype type,
@@ -485,7 +493,8 @@ s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
 			  const u8 *vndr_ie_buf, u32 vndr_ie_len);
 s32 brcmf_vif_clear_mgmt_ies(struct brcmf_cfg80211_vif *vif);
 struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key);
-u16 channel_to_chanspec(struct ieee80211_channel *ch);
+u16 channel_to_chanspec(struct brcmu_d11inf *d11inf,
+			struct ieee80211_channel *ch);
 u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state);
 void brcmf_cfg80211_arm_vif_event(struct brcmf_cfg80211_info *cfg,
 				  struct brcmf_cfg80211_vif *vif);
@@ -493,9 +502,9 @@ bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
 int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
 					  u8 action, ulong timeout);
 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
-				struct net_device *ndev,
-				bool aborted, bool fw_abort);
-void brcmf_set_mpc(struct net_device *ndev, int mpc);
+				struct brcmf_if *ifp, bool aborted,
+				bool fw_abort);
+void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);
 
 #endif				/* _wl_cfg80211_h_ */
author	Linus Torvalds <torvalds@linux-foundation.org>	2013-05-01 14:08:52 -0700
committer	Linus Torvalds <torvalds@linux-foundation.org>	2013-05-01 14:08:52 -0700
commit	73287a43cc79ca06629a88d1a199cd283f42456a (patch)
tree	acf4456e260115bea77ee31a29f10ce17f0db45c /drivers/net/wireless/brcm80211/brcmfmac
parent	251df49db3327c64bf917bfdba94491fde2b4ee0 (diff)
parent	20074f357da4a637430aec2879c9d864c5d2c23c (diff)
download	blackbird-op-linux-73287a43cc79ca06629a88d1a199cd283f42456a.tar.gz blackbird-op-linux-73287a43cc79ca06629a88d1a199cd283f42456a.zip