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path: root/drivers/net/wireless/zd1201.c
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Diffstat (limited to 'drivers/net/wireless/zd1201.c')
-rw-r--r--drivers/net/wireless/zd1201.c1929
1 files changed, 1929 insertions, 0 deletions
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
new file mode 100644
index 000000000000..662ecc8a33ff
--- /dev/null
+++ b/drivers/net/wireless/zd1201.c
@@ -0,0 +1,1929 @@
+/*
+ * Driver for ZyDAS zd1201 based wireless USB devices.
+ *
+ * Copyright (c) 2004, 2005 Jeroen Vreeken (pe1rxq@amsat.org)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * Parts of this driver have been derived from a wlan-ng version
+ * modified by ZyDAS. They also made documentation available, thanks!
+ * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/wireless.h>
+#include <net/iw_handler.h>
+#include <linux/string.h>
+#include <linux/if_arp.h>
+#include <linux/firmware.h>
+#include <net/ieee80211.h>
+#include "zd1201.h"
+
+static struct usb_device_id zd1201_table[] = {
+ {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
+ {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
+ {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */
+ {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */
+ {USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */
+ {}
+};
+
+static int ap; /* Are we an AP or a normal station? */
+
+#define ZD1201_VERSION "0.15"
+
+MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
+MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
+MODULE_VERSION(ZD1201_VERSION);
+MODULE_LICENSE("GPL");
+module_param(ap, int, 0);
+MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
+MODULE_DEVICE_TABLE(usb, zd1201_table);
+
+
+static int zd1201_fw_upload(struct usb_device *dev, int apfw)
+{
+ const struct firmware *fw_entry;
+ char *data;
+ unsigned long len;
+ int err;
+ unsigned char ret;
+ char *buf;
+ char *fwfile;
+
+ if (apfw)
+ fwfile = "zd1201-ap.fw";
+ else
+ fwfile = "zd1201.fw";
+
+ err = request_firmware(&fw_entry, fwfile, &dev->dev);
+ if (err) {
+ dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
+ dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
+ dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
+ return err;
+ }
+
+ data = fw_entry->data;
+ len = fw_entry->size;
+
+ buf = kmalloc(1024, GFP_ATOMIC);
+ if (!buf)
+ goto exit;
+
+ while (len > 0) {
+ int translen = (len > 1024) ? 1024 : len;
+ memcpy(buf, data, translen);
+
+ err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
+ USB_DIR_OUT | 0x40, 0, 0, buf, translen,
+ ZD1201_FW_TIMEOUT);
+ if (err < 0)
+ goto exit;
+
+ len -= translen;
+ data += translen;
+ }
+
+ err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
+ USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
+ if (err < 0)
+ goto exit;
+
+ err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
+ USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
+ if (err < 0)
+ goto exit;
+
+ if (ret & 0x80) {
+ err = -EIO;
+ goto exit;
+ }
+
+ err = 0;
+exit:
+ kfree(buf);
+ release_firmware(fw_entry);
+ return err;
+}
+
+static void zd1201_usbfree(struct urb *urb, struct pt_regs *regs)
+{
+ struct zd1201 *zd = urb->context;
+
+ switch(urb->status) {
+ case -EILSEQ:
+ case -ENODEV:
+ case -ETIMEDOUT:
+ case -ENOENT:
+ case -EPIPE:
+ case -EOVERFLOW:
+ case -ESHUTDOWN:
+ dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
+ zd->dev->name, urb->status);
+ }
+
+ kfree(urb->transfer_buffer);
+ usb_free_urb(urb);
+ return;
+}
+
+/* cmdreq message:
+ u32 type
+ u16 cmd
+ u16 parm0
+ u16 parm1
+ u16 parm2
+ u8 pad[4]
+
+ total: 4 + 2 + 2 + 2 + 2 + 4 = 16
+*/
+static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
+ int parm1, int parm2)
+{
+ unsigned char *command;
+ int ret;
+ struct urb *urb;
+
+ command = kmalloc(16, GFP_ATOMIC);
+ if (!command)
+ return -ENOMEM;
+
+ *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
+ *((__le16*)&command[4]) = cpu_to_le16(cmd);
+ *((__le16*)&command[6]) = cpu_to_le16(parm0);
+ *((__le16*)&command[8]) = cpu_to_le16(parm1);
+ *((__le16*)&command[10])= cpu_to_le16(parm2);
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ kfree(command);
+ return -ENOMEM;
+ }
+ usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
+ command, 16, zd1201_usbfree, zd);
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+ if (ret) {
+ kfree(command);
+ usb_free_urb(urb);
+ }
+
+ return ret;
+}
+
+/* Callback after sending out a packet */
+static void zd1201_usbtx(struct urb *urb, struct pt_regs *regs)
+{
+ struct zd1201 *zd = urb->context;
+ netif_wake_queue(zd->dev);
+ return;
+}
+
+/* Incoming data */
+static void zd1201_usbrx(struct urb *urb, struct pt_regs *regs)
+{
+ struct zd1201 *zd = urb->context;
+ int free = 0;
+ unsigned char *data = urb->transfer_buffer;
+ struct sk_buff *skb;
+ unsigned char type;
+
+ if (!zd) {
+ free = 1;
+ goto exit;
+ }
+
+ switch(urb->status) {
+ case -EILSEQ:
+ case -ENODEV:
+ case -ETIMEDOUT:
+ case -ENOENT:
+ case -EPIPE:
+ case -EOVERFLOW:
+ case -ESHUTDOWN:
+ dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
+ zd->dev->name, urb->status);
+ free = 1;
+ goto exit;
+ }
+
+ if (urb->status != 0 || urb->actual_length == 0)
+ goto resubmit;
+
+ type = data[0];
+ if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
+ memcpy(zd->rxdata, data, urb->actual_length);
+ zd->rxlen = urb->actual_length;
+ zd->rxdatas = 1;
+ wake_up(&zd->rxdataq);
+ }
+ /* Info frame */
+ if (type == ZD1201_PACKET_INQUIRE) {
+ int i = 0;
+ unsigned short infotype, framelen, copylen;
+ framelen = le16_to_cpu(*(__le16*)&data[4]);
+ infotype = le16_to_cpu(*(__le16*)&data[6]);
+
+ if (infotype == ZD1201_INF_LINKSTATUS) {
+ short linkstatus;
+
+ linkstatus = le16_to_cpu(*(__le16*)&data[8]);
+ switch(linkstatus) {
+ case 1:
+ netif_carrier_on(zd->dev);
+ break;
+ case 2:
+ netif_carrier_off(zd->dev);
+ break;
+ case 3:
+ netif_carrier_off(zd->dev);
+ break;
+ case 4:
+ netif_carrier_on(zd->dev);
+ break;
+ default:
+ netif_carrier_off(zd->dev);
+ }
+ goto resubmit;
+ }
+ if (infotype == ZD1201_INF_ASSOCSTATUS) {
+ short status = le16_to_cpu(*(__le16*)(data+8));
+ int event;
+ union iwreq_data wrqu;
+
+ switch (status) {
+ case ZD1201_ASSOCSTATUS_STAASSOC:
+ case ZD1201_ASSOCSTATUS_REASSOC:
+ event = IWEVREGISTERED;
+ break;
+ case ZD1201_ASSOCSTATUS_DISASSOC:
+ case ZD1201_ASSOCSTATUS_ASSOCFAIL:
+ case ZD1201_ASSOCSTATUS_AUTHFAIL:
+ default:
+ event = IWEVEXPIRED;
+ }
+ memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
+ wrqu.addr.sa_family = ARPHRD_ETHER;
+
+ /* Send event to user space */
+ wireless_send_event(zd->dev, event, &wrqu, NULL);
+
+ goto resubmit;
+ }
+ if (infotype == ZD1201_INF_AUTHREQ) {
+ union iwreq_data wrqu;
+
+ memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
+ wrqu.addr.sa_family = ARPHRD_ETHER;
+ /* There isn't a event that trully fits this request.
+ We assume that userspace will be smart enough to
+ see a new station being expired and sends back a
+ authstation ioctl to authorize it. */
+ wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
+ goto resubmit;
+ }
+ /* Other infotypes are handled outside this handler */
+ zd->rxlen = 0;
+ while (i < urb->actual_length) {
+ copylen = le16_to_cpu(*(__le16*)&data[i+2]);
+ /* Sanity check, sometimes we get junk */
+ if (copylen+zd->rxlen > sizeof(zd->rxdata))
+ break;
+ memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
+ zd->rxlen += copylen;
+ i += 64;
+ }
+ if (i >= urb->actual_length) {
+ zd->rxdatas = 1;
+ wake_up(&zd->rxdataq);
+ }
+ goto resubmit;
+ }
+ /* Actual data */
+ if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
+ int datalen = urb->actual_length-1;
+ unsigned short len, fc, seq;
+ struct hlist_node *node;
+
+ len = ntohs(*(__be16 *)&data[datalen-2]);
+ if (len>datalen)
+ len=datalen;
+ fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
+ seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
+
+ if (zd->monitor) {
+ if (datalen < 24)
+ goto resubmit;
+ if (!(skb = dev_alloc_skb(datalen+24)))
+ goto resubmit;
+
+ memcpy(skb_put(skb, 2), &data[datalen-16], 2);
+ memcpy(skb_put(skb, 2), &data[datalen-2], 2);
+ memcpy(skb_put(skb, 6), &data[datalen-14], 6);
+ memcpy(skb_put(skb, 6), &data[datalen-22], 6);
+ memcpy(skb_put(skb, 6), &data[datalen-8], 6);
+ memcpy(skb_put(skb, 2), &data[datalen-24], 2);
+ memcpy(skb_put(skb, len), data, len);
+ skb->dev = zd->dev;
+ skb->dev->last_rx = jiffies;
+ skb->protocol = eth_type_trans(skb, zd->dev);
+ zd->stats.rx_packets++;
+ zd->stats.rx_bytes += skb->len;
+ netif_rx(skb);
+ goto resubmit;
+ }
+
+ if ((seq & IEEE80211_SCTL_FRAG) ||
+ (fc & IEEE80211_FCTL_MOREFRAGS)) {
+ struct zd1201_frag *frag = NULL;
+ char *ptr;
+
+ if (datalen<14)
+ goto resubmit;
+ if ((seq & IEEE80211_SCTL_FRAG) == 0) {
+ frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
+ if (!frag)
+ goto resubmit;
+ skb = dev_alloc_skb(IEEE80211_DATA_LEN +14+2);
+ if (!skb) {
+ kfree(frag);
+ goto resubmit;
+ }
+ frag->skb = skb;
+ frag->seq = seq & IEEE80211_SCTL_SEQ;
+ skb_reserve(skb, 2);
+ memcpy(skb_put(skb, 12), &data[datalen-14], 12);
+ memcpy(skb_put(skb, 2), &data[6], 2);
+ memcpy(skb_put(skb, len), data+8, len);
+ hlist_add_head(&frag->fnode, &zd->fraglist);
+ goto resubmit;
+ }
+ hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
+ if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
+ break;
+ if (!frag)
+ goto resubmit;
+ skb = frag->skb;
+ ptr = skb_put(skb, len);
+ if (ptr)
+ memcpy(ptr, data+8, len);
+ if (fc & IEEE80211_FCTL_MOREFRAGS)
+ goto resubmit;
+ hlist_del_init(&frag->fnode);
+ kfree(frag);
+ } else {
+ if (datalen<14)
+ goto resubmit;
+ skb = dev_alloc_skb(len + 14 + 2);
+ if (!skb)
+ goto resubmit;
+ skb_reserve(skb, 2);
+ memcpy(skb_put(skb, 12), &data[datalen-14], 12);
+ memcpy(skb_put(skb, 2), &data[6], 2);
+ memcpy(skb_put(skb, len), data+8, len);
+ }
+ skb->dev = zd->dev;
+ skb->dev->last_rx = jiffies;
+ skb->protocol = eth_type_trans(skb, zd->dev);
+ zd->stats.rx_packets++;
+ zd->stats.rx_bytes += skb->len;
+ netif_rx(skb);
+ }
+resubmit:
+ memset(data, 0, ZD1201_RXSIZE);
+
+ urb->status = 0;
+ urb->dev = zd->usb;
+ if(usb_submit_urb(urb, GFP_ATOMIC))
+ free = 1;
+
+exit:
+ if (free) {
+ zd->rxlen = 0;
+ zd->rxdatas = 1;
+ wake_up(&zd->rxdataq);
+ kfree(urb->transfer_buffer);
+ }
+ return;
+}
+
+static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
+ unsigned int riddatalen)
+{
+ int err;
+ int i = 0;
+ int code;
+ int rid_fid;
+ int length;
+ unsigned char *pdata;
+
+ zd->rxdatas = 0;
+ err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
+ if (err)
+ return err;
+
+ wait_event_interruptible(zd->rxdataq, zd->rxdatas);
+ if (!zd->rxlen)
+ return -EIO;
+
+ code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
+ rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
+ length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
+ if (length > zd->rxlen)
+ length = zd->rxlen-6;
+
+ /* If access bit is not on, then error */
+ if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
+ return -EINVAL;
+
+ /* Not enough buffer for allocating data */
+ if (riddatalen != (length - 4)) {
+ dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
+ riddatalen, zd->rxlen, length, rid, rid_fid);
+ return -ENODATA;
+ }
+
+ zd->rxdatas = 0;
+ /* Issue SetRxRid commnd */
+ err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
+ if (err)
+ return err;
+
+ /* Receive RID record from resource packets */
+ wait_event_interruptible(zd->rxdataq, zd->rxdatas);
+ if (!zd->rxlen)
+ return -EIO;
+
+ if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
+ dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
+ zd->rxdata[zd->rxlen-1]);
+ return -EINVAL;
+ }
+
+ /* Set the data pointer and received data length */
+ pdata = zd->rxdata;
+ length = zd->rxlen;
+
+ do {
+ int actual_length;
+
+ actual_length = (length > 64) ? 64 : length;
+
+ if (pdata[0] != 0x3) {
+ dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
+ pdata[0]);
+ return -EINVAL;
+ }
+
+ if (actual_length != 64) {
+ /* Trim the last packet type byte */
+ actual_length--;
+ }
+
+ /* Skip the 4 bytes header (RID length and RID) */
+ if (i == 0) {
+ pdata += 8;
+ actual_length -= 8;
+ } else {
+ pdata += 4;
+ actual_length -= 4;
+ }
+
+ memcpy(riddata, pdata, actual_length);
+ riddata += actual_length;
+ pdata += actual_length;
+ length -= 64;
+ i++;
+ } while (length > 0);
+
+ return 0;
+}
+
+/*
+ * resreq:
+ * byte type
+ * byte sequence
+ * u16 reserved
+ * byte data[12]
+ * total: 16
+ */
+static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
+{
+ int err;
+ unsigned char *request;
+ int reqlen;
+ char seq=0;
+ struct urb *urb;
+ gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
+
+ len += 4; /* first 4 are for header */
+
+ zd->rxdatas = 0;
+ zd->rxlen = 0;
+ for (seq=0; len > 0; seq++) {
+ request = kmalloc(16, gfp_mask);
+ if (!request)
+ return -ENOMEM;
+ urb = usb_alloc_urb(0, gfp_mask);
+ if (!urb) {
+ kfree(request);
+ return -ENOMEM;
+ }
+ memset(request, 0, 16);
+ reqlen = len>12 ? 12 : len;
+ request[0] = ZD1201_USB_RESREQ;
+ request[1] = seq;
+ request[2] = 0;
+ request[3] = 0;
+ if (request[1] == 0) {
+ /* add header */
+ *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
+ *(__le16*)&request[6] = cpu_to_le16(rid);
+ memcpy(request+8, buf, reqlen-4);
+ buf += reqlen-4;
+ } else {
+ memcpy(request+4, buf, reqlen);
+ buf += reqlen;
+ }
+
+ len -= reqlen;
+
+ usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
+ zd->endp_out2), request, 16, zd1201_usbfree, zd);
+ err = usb_submit_urb(urb, gfp_mask);
+ if (err)
+ goto err;
+ }
+
+ request = kmalloc(16, gfp_mask);
+ if (!request)
+ return -ENOMEM;
+ urb = usb_alloc_urb(0, gfp_mask);
+ if (!urb) {
+ kfree(request);
+ return -ENOMEM;
+ }
+ *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
+ *((__le16*)&request[4]) =
+ cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
+ *((__le16*)&request[6]) = cpu_to_le16(rid);
+ *((__le16*)&request[8]) = cpu_to_le16(0);
+ *((__le16*)&request[10]) = cpu_to_le16(0);
+ usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
+ request, 16, zd1201_usbfree, zd);
+ err = usb_submit_urb(urb, gfp_mask);
+ if (err)
+ goto err;
+
+ if (wait) {
+ wait_event_interruptible(zd->rxdataq, zd->rxdatas);
+ if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
+ dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
+ }
+ }
+
+ return 0;
+err:
+ kfree(request);
+ usb_free_urb(urb);
+ return err;
+}
+
+static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
+{
+ int err;
+ __le16 zdval;
+
+ err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
+ if (err)
+ return err;
+ *val = le16_to_cpu(zdval);
+ return 0;
+}
+
+static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
+{
+ __le16 zdval = cpu_to_le16(val);
+ return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
+}
+
+static int zd1201_drvr_start(struct zd1201 *zd)
+{
+ int err, i;
+ short max;
+ __le16 zdmax;
+ unsigned char *buffer;
+
+ buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+ usb_fill_bulk_urb(zd->rx_urb, zd->usb,
+ usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
+ zd1201_usbrx, zd);
+
+ err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
+ if (err)
+ goto err_buffer;
+
+ err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
+ if (err)
+ goto err_urb;
+
+ err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
+ sizeof(__le16));
+ if (err)
+ goto err_urb;
+
+ max = le16_to_cpu(zdmax);
+ for (i=0; i<max; i++) {
+ err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
+ if (err)
+ goto err_urb;
+ }
+
+ return 0;
+
+err_urb:
+ usb_kill_urb(zd->rx_urb);
+ return err;
+err_buffer:
+ kfree(buffer);
+ return err;
+}
+
+/* Magic alert: The firmware doesn't seem to like the MAC state being
+ * toggled in promisc (aka monitor) mode.
+ * (It works a number of times, but will halt eventually)
+ * So we turn it of before disabling and on after enabling if needed.
+ */
+static int zd1201_enable(struct zd1201 *zd)
+{
+ int err;
+
+ if (zd->mac_enabled)
+ return 0;
+
+ err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
+ if (!err)
+ zd->mac_enabled = 1;
+
+ if (zd->monitor)
+ err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
+
+ return err;
+}
+
+static int zd1201_disable(struct zd1201 *zd)
+{
+ int err;
+
+ if (!zd->mac_enabled)
+ return 0;
+ if (zd->monitor) {
+ err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
+ if (err)
+ return err;
+ }
+
+ err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
+ if (!err)
+ zd->mac_enabled = 0;
+ return err;
+}
+
+static int zd1201_mac_reset(struct zd1201 *zd)
+{
+ if (!zd->mac_enabled)
+ return 0;
+ zd1201_disable(zd);
+ return zd1201_enable(zd);
+}
+
+static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
+{
+ int err, val;
+ char buf[IW_ESSID_MAX_SIZE+2];
+
+ err = zd1201_disable(zd);
+ if (err)
+ return err;
+
+ val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
+ val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
+ if (err)
+ return err;
+
+ *(__le16 *)buf = cpu_to_le16(essidlen);
+ memcpy(buf+2, essid, essidlen);
+ if (!zd->ap) { /* Normal station */
+ err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
+ IW_ESSID_MAX_SIZE+2, 1);
+ if (err)
+ return err;
+ } else { /* AP */
+ err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
+ IW_ESSID_MAX_SIZE+2, 1);
+ if (err)
+ return err;
+ }
+
+ err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
+ zd->dev->dev_addr, zd->dev->addr_len, 1);
+ if (err)
+ return err;
+
+ err = zd1201_enable(zd);
+ if (err)
+ return err;
+
+ msleep(100);
+ return 0;
+}
+
+static int zd1201_net_open(struct net_device *dev)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+
+ /* Start MAC with wildcard if no essid set */
+ if (!zd->mac_enabled)
+ zd1201_join(zd, zd->essid, zd->essidlen);
+ netif_start_queue(dev);
+
+ return 0;
+}
+
+static int zd1201_net_stop(struct net_device *dev)
+{
+ netif_stop_queue(dev);
+ return 0;
+}
+
+/*
+ RFC 1042 encapsulates Ethernet frames in 802.11 frames
+ by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
+ (0x00, 0x00, 0x00). Zd requires an additional padding, copy
+ of ethernet addresses, length of the standard RFC 1042 packet
+ and a command byte (which is nul for tx).
+
+ tx frame (from Wlan NG):
+ RFC 1042:
+ llc 0xAA 0xAA 0x03 (802.2 LLC)
+ snap 0x00 0x00 0x00 (Ethernet encapsulated)
+ type 2 bytes, Ethernet type field
+ payload (minus eth header)
+ Zydas specific:
+ padding 1B if (skb->len+8+1)%64==0
+ Eth MAC addr 12 bytes, Ethernet MAC addresses
+ length 2 bytes, RFC 1042 packet length
+ (llc+snap+type+payload)
+ zd 1 null byte, zd1201 packet type
+ */
+static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ unsigned char *txbuf = zd->txdata;
+ int txbuflen, pad = 0, err;
+ struct urb *urb = zd->tx_urb;
+
+ if (!zd->mac_enabled || zd->monitor) {
+ zd->stats.tx_dropped++;
+ kfree_skb(skb);
+ return 0;
+ }
+ netif_stop_queue(dev);
+
+ txbuflen = skb->len + 8 + 1;
+ if (txbuflen%64 == 0) {
+ pad = 1;
+ txbuflen++;
+ }
+ txbuf[0] = 0xAA;
+ txbuf[1] = 0xAA;
+ txbuf[2] = 0x03;
+ txbuf[3] = 0x00; /* rfc1042 */
+ txbuf[4] = 0x00;
+ txbuf[5] = 0x00;
+
+ memcpy(txbuf+6, skb->data+12, skb->len-12);
+ if (pad)
+ txbuf[skb->len-12+6]=0;
+ memcpy(txbuf+skb->len-12+6+pad, skb->data, 12);
+ *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
+ txbuf[txbuflen-1] = 0;
+
+ usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
+ txbuf, txbuflen, zd1201_usbtx, zd);
+
+ err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
+ if (err) {
+ zd->stats.tx_errors++;
+ netif_start_queue(dev);
+ return err;
+ }
+ zd->stats.tx_packets++;
+ zd->stats.tx_bytes += skb->len;
+ dev->trans_start = jiffies;
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static void zd1201_tx_timeout(struct net_device *dev)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+
+ if (!zd)
+ return;
+ dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
+ dev->name);
+ usb_unlink_urb(zd->tx_urb);
+ zd->stats.tx_errors++;
+ /* Restart the timeout to quiet the watchdog: */
+ dev->trans_start = jiffies;
+}
+
+static int zd1201_set_mac_address(struct net_device *dev, void *p)
+{
+ struct sockaddr *addr = p;
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ int err;
+
+ if (!zd)
+ return -ENODEV;
+
+ err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
+ addr->sa_data, dev->addr_len, 1);
+ if (err)
+ return err;
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ return zd1201_mac_reset(zd);
+}
+
+static struct net_device_stats *zd1201_get_stats(struct net_device *dev)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+
+ return &zd->stats;
+}
+
+static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+
+ return &zd->iwstats;
+}
+
+static void zd1201_set_multicast(struct net_device *dev)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ struct dev_mc_list *mc = dev->mc_list;
+ unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
+ int i;
+
+ if (dev->mc_count > ZD1201_MAXMULTI)
+ return;
+
+ for (i=0; i<dev->mc_count; i++) {
+ memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
+ mc = mc->next;
+ }
+ zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
+ dev->mc_count*ETH_ALEN, 0);
+
+}
+
+static int zd1201_config_commit(struct net_device *dev,
+ struct iw_request_info *info, struct iw_point *data, char *essid)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+
+ return zd1201_mac_reset(zd);
+}
+
+static int zd1201_get_name(struct net_device *dev,
+ struct iw_request_info *info, char *name, char *extra)
+{
+ strcpy(name, "IEEE 802.11b");
+ return 0;
+}
+
+static int zd1201_set_freq(struct net_device *dev,
+ struct iw_request_info *info, struct iw_freq *freq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short channel = 0;
+ int err;
+
+ if (freq->e == 0)
+ channel = freq->m;
+ else {
+ if (freq->m >= 2482)
+ channel = 14;
+ if (freq->m >= 2407)
+ channel = (freq->m-2407)/5;
+ }
+
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
+ if (err)
+ return err;
+
+ zd1201_mac_reset(zd);
+
+ return 0;
+}
+
+static int zd1201_get_freq(struct net_device *dev,
+ struct iw_request_info *info, struct iw_freq *freq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short channel;
+ int err;
+
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
+ if (err)
+ return err;
+ freq->e = 0;
+ freq->m = channel;
+
+ return 0;
+}
+
+static int zd1201_set_mode(struct net_device *dev,
+ struct iw_request_info *info, __u32 *mode, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short porttype, monitor = 0;
+ unsigned char buffer[IW_ESSID_MAX_SIZE+2];
+ int err;
+
+ if (zd->ap) {
+ if (*mode != IW_MODE_MASTER)
+ return -EINVAL;
+ return 0;
+ }
+
+ err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
+ if (err)
+ return err;
+ zd->dev->type = ARPHRD_ETHER;
+ switch(*mode) {
+ case IW_MODE_MONITOR:
+ monitor = 1;
+ zd->dev->type = ARPHRD_IEEE80211;
+ /* Make sure we are no longer associated with by
+ setting an 'impossible' essid.
+ (otherwise we mess up firmware)
+ */
+ zd1201_join(zd, "\0-*#\0", 5);
+ /* Put port in pIBSS */
+ case 8: /* No pseudo-IBSS in wireless extensions (yet) */
+ porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
+ break;
+ case IW_MODE_ADHOC:
+ porttype = ZD1201_PORTTYPE_IBSS;
+ break;
+ case IW_MODE_INFRA:
+ porttype = ZD1201_PORTTYPE_BSS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
+ if (err)
+ return err;
+ if (zd->monitor && !monitor) {
+ zd1201_disable(zd);
+ *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
+ memcpy(buffer+2, zd->essid, zd->essidlen);
+ err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
+ buffer, IW_ESSID_MAX_SIZE+2, 1);
+ if (err)
+ return err;
+ }
+ zd->monitor = monitor;
+ /* If monitor mode is set we don't actually turn it on here since it
+ * is done during mac reset anyway (see zd1201_mac_enable).
+ */
+ zd1201_mac_reset(zd);
+
+ return 0;
+}
+
+static int zd1201_get_mode(struct net_device *dev,
+ struct iw_request_info *info, __u32 *mode, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short porttype;
+ int err;
+
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
+ if (err)
+ return err;
+ switch(porttype) {
+ case ZD1201_PORTTYPE_IBSS:
+ *mode = IW_MODE_ADHOC;
+ break;
+ case ZD1201_PORTTYPE_BSS:
+ *mode = IW_MODE_INFRA;
+ break;
+ case ZD1201_PORTTYPE_WDS:
+ *mode = IW_MODE_REPEAT;
+ break;
+ case ZD1201_PORTTYPE_PSEUDOIBSS:
+ *mode = 8;/* No Pseudo-IBSS... */
+ break;
+ case ZD1201_PORTTYPE_AP:
+ *mode = IW_MODE_MASTER;
+ break;
+ default:
+ dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
+ porttype);
+ *mode = IW_MODE_AUTO;
+ }
+ if (zd->monitor)
+ *mode = IW_MODE_MONITOR;
+
+ return 0;
+}
+
+static int zd1201_get_range(struct net_device *dev,
+ struct iw_request_info *info, struct iw_point *wrq, char *extra)
+{
+ struct iw_range *range = (struct iw_range *)extra;
+
+ wrq->length = sizeof(struct iw_range);
+ memset(range, 0, sizeof(struct iw_range));
+ range->we_version_compiled = WIRELESS_EXT;
+ range->we_version_source = WIRELESS_EXT;
+
+ range->max_qual.qual = 128;
+ range->max_qual.level = 128;
+ range->max_qual.noise = 128;
+ range->max_qual.updated = 7;
+
+ range->encoding_size[0] = 5;
+ range->encoding_size[1] = 13;
+ range->num_encoding_sizes = 2;
+ range->max_encoding_tokens = ZD1201_NUMKEYS;
+
+ range->num_bitrates = 4;
+ range->bitrate[0] = 1000000;
+ range->bitrate[1] = 2000000;
+ range->bitrate[2] = 5500000;
+ range->bitrate[3] = 11000000;
+
+ range->min_rts = 0;
+ range->min_frag = ZD1201_FRAGMIN;
+ range->max_rts = ZD1201_RTSMAX;
+ range->min_frag = ZD1201_FRAGMAX;
+
+ return 0;
+}
+
+/* Little bit of magic here: we only get the quality if we poll
+ * for it, and we never get an actual request to trigger such
+ * a poll. Therefore we 'assume' that the user will soon ask for
+ * the stats after asking the bssid.
+ */
+static int zd1201_get_wap(struct net_device *dev,
+ struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ unsigned char buffer[6];
+
+ if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
+ /* Unfortunately the quality and noise reported is useless.
+ they seem to be accumulators that increase until you
+ read them, unless we poll on a fixed interval we can't
+ use them
+ */
+ /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
+ zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
+ /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
+ zd->iwstats.qual.updated = 2;
+ }
+
+ return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
+}
+
+static int zd1201_set_scan(struct net_device *dev,
+ struct iw_request_info *info, struct iw_point *srq, char *extra)
+{
+ /* We do everything in get_scan */
+ return 0;
+}
+
+static int zd1201_get_scan(struct net_device *dev,
+ struct iw_request_info *info, struct iw_point *srq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ int err, i, j, enabled_save;
+ struct iw_event iwe;
+ char *cev = extra;
+ char *end_buf = extra + IW_SCAN_MAX_DATA;
+
+ /* No scanning in AP mode */
+ if (zd->ap)
+ return -EOPNOTSUPP;
+
+ /* Scan doesn't seem to work if disabled */
+ enabled_save = zd->mac_enabled;
+ zd1201_enable(zd);
+
+ zd->rxdatas = 0;
+ err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
+ ZD1201_INQ_SCANRESULTS, 0, 0);
+ if (err)
+ return err;
+
+ wait_event_interruptible(zd->rxdataq, zd->rxdatas);
+ if (!zd->rxlen)
+ return -EIO;
+
+ if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
+ return -EIO;
+
+ for(i=8; i<zd->rxlen; i+=62) {
+ iwe.cmd = SIOCGIWAP;
+ iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
+ memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
+ cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
+
+ iwe.cmd = SIOCGIWESSID;
+ iwe.u.data.length = zd->rxdata[i+16];
+ iwe.u.data.flags = 1;
+ cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18);
+
+ iwe.cmd = SIOCGIWMODE;
+ if (zd->rxdata[i+14]&0x01)
+ iwe.u.mode = IW_MODE_MASTER;
+ else
+ iwe.u.mode = IW_MODE_ADHOC;
+ cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
+
+ iwe.cmd = SIOCGIWFREQ;
+ iwe.u.freq.m = zd->rxdata[i+0];
+ iwe.u.freq.e = 0;
+ cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
+
+ iwe.cmd = SIOCGIWRATE;
+ iwe.u.bitrate.fixed = 0;
+ iwe.u.bitrate.disabled = 0;
+ for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
+ iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
+ cev=iwe_stream_add_event(cev, end_buf, &iwe,
+ IW_EV_PARAM_LEN);
+ }
+
+ iwe.cmd = SIOCGIWENCODE;
+ iwe.u.data.length = 0;
+ if (zd->rxdata[i+14]&0x10)
+ iwe.u.data.flags = IW_ENCODE_ENABLED;
+ else
+ iwe.u.data.flags = IW_ENCODE_DISABLED;
+ cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
+
+ iwe.cmd = IWEVQUAL;
+ iwe.u.qual.qual = zd->rxdata[i+4];
+ iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
+ iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
+ iwe.u.qual.updated = 7;
+ cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
+ }
+
+ if (!enabled_save)
+ zd1201_disable(zd);
+
+ srq->length = cev - extra;
+ srq->flags = 0;
+
+ return 0;
+}
+
+static int zd1201_set_essid(struct net_device *dev,
+ struct iw_request_info *info, struct iw_point *data, char *essid)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+
+ if (data->length > IW_ESSID_MAX_SIZE)
+ return -EINVAL;
+ if (data->length < 1)
+ data->length = 1;
+ zd->essidlen = data->length-1;
+ memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
+ memcpy(zd->essid, essid, data->length);
+ return zd1201_join(zd, zd->essid, zd->essidlen);
+}
+
+static int zd1201_get_essid(struct net_device *dev,
+ struct iw_request_info *info, struct iw_point *data, char *essid)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+
+ memcpy(essid, zd->essid, zd->essidlen);
+ data->flags = 1;
+ data->length = zd->essidlen;
+
+ return 0;
+}
+
+static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
+ struct iw_point *data, char *nick)
+{
+ strcpy(nick, "zd1201");
+ data->flags = 1;
+ data->length = strlen(nick);
+ return 0;
+}
+
+static int zd1201_set_rate(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *rrq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short rate;
+ int err;
+
+ switch (rrq->value) {
+ case 1000000:
+ rate = ZD1201_RATEB1;
+ break;
+ case 2000000:
+ rate = ZD1201_RATEB2;
+ break;
+ case 5500000:
+ rate = ZD1201_RATEB5;
+ break;
+ case 11000000:
+ default:
+ rate = ZD1201_RATEB11;
+ break;
+ }
+ if (!rrq->fixed) { /* Also enable all lower bitrates */
+ rate |= rate-1;
+ }
+
+ err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
+ if (err)
+ return err;
+
+ return zd1201_mac_reset(zd);
+}
+
+static int zd1201_get_rate(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *rrq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short rate;
+ int err;
+
+ err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
+ if (err)
+ return err;
+
+ switch(rate) {
+ case 1:
+ rrq->value = 1000000;
+ break;
+ case 2:
+ rrq->value = 2000000;
+ break;
+ case 5:
+ rrq->value = 5500000;
+ break;
+ case 11:
+ rrq->value = 11000000;
+ break;
+ default:
+ rrq->value = 0;
+ }
+ rrq->fixed = 0;
+ rrq->disabled = 0;
+
+ return 0;
+}
+
+static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
+ struct iw_param *rts, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ int err;
+ short val = rts->value;
+
+ if (rts->disabled || !rts->fixed)
+ val = ZD1201_RTSMAX;
+ if (val > ZD1201_RTSMAX)
+ return -EINVAL;
+ if (val < 0)
+ return -EINVAL;
+
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
+ if (err)
+ return err;
+ return zd1201_mac_reset(zd);
+}
+
+static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
+ struct iw_param *rts, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short rtst;
+ int err;
+
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
+ if (err)
+ return err;
+ rts->value = rtst;
+ rts->disabled = (rts->value == ZD1201_RTSMAX);
+ rts->fixed = 1;
+
+ return 0;
+}
+
+static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
+ struct iw_param *frag, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ int err;
+ short val = frag->value;
+
+ if (frag->disabled || !frag->fixed)
+ val = ZD1201_FRAGMAX;
+ if (val > ZD1201_FRAGMAX)
+ return -EINVAL;
+ if (val < ZD1201_FRAGMIN)
+ return -EINVAL;
+ if (val & 1)
+ return -EINVAL;
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
+ if (err)
+ return err;
+ return zd1201_mac_reset(zd);
+}
+
+static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
+ struct iw_param *frag, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short fragt;
+ int err;
+
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
+ if (err)
+ return err;
+ frag->value = fragt;
+ frag->disabled = (frag->value == ZD1201_FRAGMAX);
+ frag->fixed = 1;
+
+ return 0;
+}
+
+static int zd1201_set_retry(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *rrq, char *extra)
+{
+ return 0;
+}
+
+static int zd1201_get_retry(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *rrq, char *extra)
+{
+ return 0;
+}
+
+static int zd1201_set_encode(struct net_device *dev,
+ struct iw_request_info *info, struct iw_point *erq, char *key)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short i;
+ int err, rid;
+
+ if (erq->length > ZD1201_MAXKEYLEN)
+ return -EINVAL;
+
+ i = (erq->flags & IW_ENCODE_INDEX)-1;
+ if (i == -1) {
+ err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
+ if (err)
+ return err;
+ } else {
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
+ if (err)
+ return err;
+ }
+
+ if (i < 0 || i >= ZD1201_NUMKEYS)
+ return -EINVAL;
+
+ rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
+ err = zd1201_setconfig(zd, rid, key, erq->length, 1);
+ if (err)
+ return err;
+ zd->encode_keylen[i] = erq->length;
+ memcpy(zd->encode_keys[i], key, erq->length);
+
+ i=0;
+ if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
+ i |= 0x01;
+ zd->encode_enabled = 1;
+ } else
+ zd->encode_enabled = 0;
+ if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
+ i |= 0x02;
+ zd->encode_restricted = 1;
+ } else
+ zd->encode_restricted = 0;
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
+ if (err)
+ return err;
+
+ if (zd->encode_enabled)
+ i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
+ else
+ i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
+ if (err)
+ return err;
+
+ return zd1201_mac_reset(zd);
+}
+
+static int zd1201_get_encode(struct net_device *dev,
+ struct iw_request_info *info, struct iw_point *erq, char *key)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short i;
+ int err;
+
+ if (zd->encode_enabled)
+ erq->flags = IW_ENCODE_ENABLED;
+ else
+ erq->flags = IW_ENCODE_DISABLED;
+ if (zd->encode_restricted)
+ erq->flags |= IW_ENCODE_RESTRICTED;
+ else
+ erq->flags |= IW_ENCODE_OPEN;
+
+ i = (erq->flags & IW_ENCODE_INDEX) -1;
+ if (i == -1) {
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
+ if (err)
+ return err;
+ }
+ if (i<0 || i>= ZD1201_NUMKEYS)
+ return -EINVAL;
+
+ erq->flags |= i+1;
+
+ erq->length = zd->encode_keylen[i];
+ memcpy(key, zd->encode_keys[i], erq->length);
+
+ return 0;
+}
+
+static int zd1201_set_power(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *vwrq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short enabled, duration, level;
+ int err;
+
+ enabled = vwrq->disabled ? 0 : 1;
+ if (enabled) {
+ if (vwrq->flags & IW_POWER_PERIOD) {
+ duration = vwrq->value;
+ err = zd1201_setconfig16(zd,
+ ZD1201_RID_CNFMAXSLEEPDURATION, duration);
+ if (err)
+ return err;
+ goto out;
+ }
+ if (vwrq->flags & IW_POWER_TIMEOUT) {
+ err = zd1201_getconfig16(zd,
+ ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
+ if (err)
+ return err;
+ level = vwrq->value * 4 / duration;
+ if (level > 4)
+ level = 4;
+ if (level < 0)
+ level = 0;
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
+ level);
+ if (err)
+ return err;
+ goto out;
+ }
+ return -EINVAL;
+ }
+out:
+ return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
+}
+
+static int zd1201_get_power(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *vwrq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short enabled, level, duration;
+ int err;
+
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
+ if (err)
+ return err;
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
+ if (err)
+ return err;
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
+ if (err)
+ return err;
+ vwrq->disabled = enabled ? 0 : 1;
+ if (vwrq->flags & IW_POWER_TYPE) {
+ if (vwrq->flags & IW_POWER_PERIOD) {
+ vwrq->value = duration;
+ vwrq->flags = IW_POWER_PERIOD;
+ } else {
+ vwrq->value = duration * level / 4;
+ vwrq->flags = IW_POWER_TIMEOUT;
+ }
+ }
+ if (vwrq->flags & IW_POWER_MODE) {
+ if (enabled && level)
+ vwrq->flags = IW_POWER_UNICAST_R;
+ else
+ vwrq->flags = IW_POWER_ALL_R;
+ }
+
+ return 0;
+}
+
+
+static const iw_handler zd1201_iw_handler[] =
+{
+ (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
+ (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
+ (iw_handler) NULL, /* SIOCSIWNWID */
+ (iw_handler) NULL, /* SIOCGIWNWID */
+ (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
+ (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
+ (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
+ (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
+ (iw_handler) NULL, /* SIOCSIWSENS */
+ (iw_handler) NULL, /* SIOCGIWSENS */
+ (iw_handler) NULL, /* SIOCSIWRANGE */
+ (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
+ (iw_handler) NULL, /* SIOCSIWPRIV */
+ (iw_handler) NULL, /* SIOCGIWPRIV */
+ (iw_handler) NULL, /* SIOCSIWSTATS */
+ (iw_handler) NULL, /* SIOCGIWSTATS */
+ (iw_handler) NULL, /* SIOCSIWSPY */
+ (iw_handler) NULL, /* SIOCGIWSPY */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
+ (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL, /* SIOCGIWAPLIST */
+ (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
+ (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
+ (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
+ (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
+ (iw_handler) NULL, /* SIOCSIWNICKN */
+ (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
+ (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
+ (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
+ (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
+ (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
+ (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
+ (iw_handler) NULL, /* SIOCSIWTXPOW */
+ (iw_handler) NULL, /* SIOCGIWTXPOW */
+ (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
+ (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
+ (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
+ (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
+ (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
+ (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
+};
+
+static int zd1201_set_hostauth(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *rrq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+
+ if (!zd->ap)
+ return -EOPNOTSUPP;
+
+ return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
+}
+
+static int zd1201_get_hostauth(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *rrq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short hostauth;
+ int err;
+
+ if (!zd->ap)
+ return -EOPNOTSUPP;
+
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
+ if (err)
+ return err;
+ rrq->value = hostauth;
+ rrq->fixed = 1;
+
+ return 0;
+}
+
+static int zd1201_auth_sta(struct net_device *dev,
+ struct iw_request_info *info, struct sockaddr *sta, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ unsigned char buffer[10];
+
+ if (!zd->ap)
+ return -EOPNOTSUPP;
+
+ memcpy(buffer, sta->sa_data, ETH_ALEN);
+ *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
+ *(short*)(buffer+8) = 0;
+
+ return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
+}
+
+static int zd1201_set_maxassoc(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *rrq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ int err;
+
+ if (!zd->ap)
+ return -EOPNOTSUPP;
+
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
+ if (err)
+ return err;
+ return 0;
+}
+
+static int zd1201_get_maxassoc(struct net_device *dev,
+ struct iw_request_info *info, struct iw_param *rrq, char *extra)
+{
+ struct zd1201 *zd = (struct zd1201 *)dev->priv;
+ short maxassoc;
+ int err;
+
+ if (!zd->ap)
+ return -EOPNOTSUPP;
+
+ err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
+ if (err)
+ return err;
+ rrq->value = maxassoc;
+ rrq->fixed = 1;
+
+ return 0;
+}
+
+static const iw_handler zd1201_private_handler[] = {
+ (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
+ (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
+ (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
+ (iw_handler) NULL, /* nothing to get */
+ (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
+ (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
+};
+
+static const struct iw_priv_args zd1201_private_args[] = {
+ { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
+ IW_PRIV_TYPE_NONE, "sethostauth" },
+ { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
+ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
+ { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
+ IW_PRIV_TYPE_NONE, "authstation" },
+ { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
+ IW_PRIV_TYPE_NONE, "setmaxassoc" },
+ { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
+ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
+};
+
+static const struct iw_handler_def zd1201_iw_handlers = {
+ .num_standard = ARRAY_SIZE(zd1201_iw_handler),
+ .num_private = ARRAY_SIZE(zd1201_private_handler),
+ .num_private_args = ARRAY_SIZE(zd1201_private_args),
+ .standard = (iw_handler *)zd1201_iw_handler,
+ .private = (iw_handler *)zd1201_private_handler,
+ .private_args = (struct iw_priv_args *) zd1201_private_args,
+ .get_wireless_stats = zd1201_get_wireless_stats,
+};
+
+static int zd1201_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct zd1201 *zd;
+ struct usb_device *usb;
+ int err;
+ short porttype;
+ char buf[IW_ESSID_MAX_SIZE+2];
+
+ usb = interface_to_usbdev(interface);
+
+ zd = kzalloc(sizeof(struct zd1201), GFP_KERNEL);
+ if (!zd)
+ return -ENOMEM;
+ zd->ap = ap;
+ zd->usb = usb;
+ zd->removed = 0;
+ init_waitqueue_head(&zd->rxdataq);
+ INIT_HLIST_HEAD(&zd->fraglist);
+
+ err = zd1201_fw_upload(usb, zd->ap);
+ if (err) {
+ dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
+ goto err_zd;
+ }
+
+ zd->endp_in = 1;
+ zd->endp_out = 1;
+ zd->endp_out2 = 2;
+ zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!zd->rx_urb || !zd->tx_urb)
+ goto err_zd;
+
+ mdelay(100);
+ err = zd1201_drvr_start(zd);
+ if (err)
+ goto err_zd;
+
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
+ if (err)
+ goto err_start;
+
+ err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
+ ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
+ if (err)
+ goto err_start;
+
+ zd->dev = alloc_etherdev(0);
+ if (!zd->dev)
+ goto err_start;
+
+ zd->dev->priv = zd;
+ zd->dev->open = zd1201_net_open;
+ zd->dev->stop = zd1201_net_stop;
+ zd->dev->get_stats = zd1201_get_stats;
+ zd->dev->wireless_handlers =
+ (struct iw_handler_def *)&zd1201_iw_handlers;
+ zd->dev->hard_start_xmit = zd1201_hard_start_xmit;
+ zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
+ zd->dev->tx_timeout = zd1201_tx_timeout;
+ zd->dev->set_multicast_list = zd1201_set_multicast;
+ zd->dev->set_mac_address = zd1201_set_mac_address;
+ strcpy(zd->dev->name, "wlan%d");
+
+ err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
+ zd->dev->dev_addr, zd->dev->addr_len);
+ if (err)
+ goto err_net;
+
+ /* Set wildcard essid to match zd->essid */
+ *(__le16 *)buf = cpu_to_le16(0);
+ err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
+ IW_ESSID_MAX_SIZE+2, 1);
+ if (err)
+ goto err_net;
+
+ if (zd->ap)
+ porttype = ZD1201_PORTTYPE_AP;
+ else
+ porttype = ZD1201_PORTTYPE_BSS;
+ err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
+ if (err)
+ goto err_net;
+
+ SET_NETDEV_DEV(zd->dev, &usb->dev);
+
+ err = register_netdev(zd->dev);
+ if (err)
+ goto err_net;
+ dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
+ zd->dev->name);
+
+ usb_set_intfdata(interface, zd);
+ return 0;
+
+err_net:
+ free_netdev(zd->dev);
+err_start:
+ /* Leave the device in reset state */
+ zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
+err_zd:
+ if (zd->tx_urb)
+ usb_free_urb(zd->tx_urb);
+ if (zd->rx_urb)
+ usb_free_urb(zd->rx_urb);
+ kfree(zd);
+ return err;
+}
+
+static void zd1201_disconnect(struct usb_interface *interface)
+{
+ struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
+ struct hlist_node *node, *node2;
+ struct zd1201_frag *frag;
+
+ if (!zd)
+ return;
+ usb_set_intfdata(interface, NULL);
+ if (zd->dev) {
+ unregister_netdev(zd->dev);
+ free_netdev(zd->dev);
+ }
+
+ hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
+ hlist_del_init(&frag->fnode);
+ kfree_skb(frag->skb);
+ kfree(frag);
+ }
+
+ if (zd->tx_urb) {
+ usb_kill_urb(zd->tx_urb);
+ usb_free_urb(zd->tx_urb);
+ }
+ if (zd->rx_urb) {
+ usb_kill_urb(zd->rx_urb);
+ usb_free_urb(zd->rx_urb);
+ }
+ kfree(zd);
+}
+
+#ifdef CONFIG_PM
+
+static int zd1201_suspend(struct usb_interface *interface,
+ pm_message_t message)
+{
+ struct zd1201 *zd = usb_get_intfdata(interface);
+
+ netif_device_detach(zd->dev);
+
+ zd->was_enabled = zd->mac_enabled;
+
+ if (zd->was_enabled)
+ return zd1201_disable(zd);
+ else
+ return 0;
+}
+
+static int zd1201_resume(struct usb_interface *interface)
+{
+ struct zd1201 *zd = usb_get_intfdata(interface);
+
+ if (!zd || !zd->dev)
+ return -ENODEV;
+
+ netif_device_attach(zd->dev);
+
+ if (zd->was_enabled)
+ return zd1201_enable(zd);
+ else
+ return 0;
+}
+
+#else
+
+#define zd1201_suspend NULL
+#define zd1201_resume NULL
+
+#endif
+
+static struct usb_driver zd1201_usb = {
+ .name = "zd1201",
+ .probe = zd1201_probe,
+ .disconnect = zd1201_disconnect,
+ .id_table = zd1201_table,
+ .suspend = zd1201_suspend,
+ .resume = zd1201_resume,
+};
+
+static int __init zd1201_init(void)
+{
+ return usb_register(&zd1201_usb);
+}
+
+static void __exit zd1201_cleanup(void)
+{
+ usb_deregister(&zd1201_usb);
+}
+
+module_init(zd1201_init);
+module_exit(zd1201_cleanup);
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