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path: root/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
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Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c39
1 files changed, 33 insertions, 6 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 8e7e6928c936..3b2c4c20e7fc 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -185,7 +185,7 @@ brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address)
return err;
}
-static int
+int
brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
void *data, bool write)
{
@@ -249,7 +249,9 @@ u8 brcmf_sdio_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret)
int retval;
brcmf_dbg(INFO, "addr:0x%08x\n", addr);
+ sdio_claim_host(sdiodev->func[1]);
retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, false);
+ sdio_release_host(sdiodev->func[1]);
brcmf_dbg(INFO, "data:0x%02x\n", data);
if (ret)
@@ -264,7 +266,9 @@ u32 brcmf_sdio_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret)
int retval;
brcmf_dbg(INFO, "addr:0x%08x\n", addr);
+ sdio_claim_host(sdiodev->func[1]);
retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, false);
+ sdio_release_host(sdiodev->func[1]);
brcmf_dbg(INFO, "data:0x%08x\n", data);
if (ret)
@@ -279,7 +283,9 @@ 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);
+ sdio_claim_host(sdiodev->func[1]);
retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, true);
+ sdio_release_host(sdiodev->func[1]);
if (ret)
*ret = retval;
@@ -291,7 +297,9 @@ 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);
+ sdio_claim_host(sdiodev->func[1]);
retval = brcmf_sdio_regrw_helper(sdiodev, addr, &data, true);
+ sdio_release_host(sdiodev->func[1]);
if (ret)
*ret = retval;
@@ -356,15 +364,20 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n",
fn, addr, pkt->len);
+ sdio_claim_host(sdiodev->func[1]);
+
width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
err = brcmf_sdcard_recv_prepare(sdiodev, fn, flags, width, &addr);
if (err)
- return err;
+ goto done;
incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
err = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_READ,
fn, addr, pkt);
+done:
+ sdio_release_host(sdiodev->func[1]);
+
return err;
}
@@ -378,15 +391,20 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
brcmf_dbg(INFO, "fun = %d, addr = 0x%x, size = %d\n",
fn, addr, pktq->qlen);
+ sdio_claim_host(sdiodev->func[1]);
+
width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
err = brcmf_sdcard_recv_prepare(sdiodev, fn, flags, width, &addr);
if (err)
- return err;
+ goto done;
incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
err = brcmf_sdioh_request_chain(sdiodev, incr_fix, SDIOH_READ, fn, addr,
pktq);
+done:
+ sdio_release_host(sdiodev->func[1]);
+
return err;
}
@@ -428,10 +446,12 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
if (flags & SDIO_REQ_ASYNC)
return -ENOTSUPP;
+ sdio_claim_host(sdiodev->func[1]);
+
if (bar0 != sdiodev->sbwad) {
err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0);
if (err)
- return err;
+ goto done;
sdiodev->sbwad = bar0;
}
@@ -443,8 +463,13 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
if (width == 4)
addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
- return brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_WRITE, fn,
- addr, pkt);
+ err = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_WRITE, fn,
+ addr, pkt);
+
+done:
+ sdio_release_host(sdiodev->func[1]);
+
+ return err;
}
int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw, u32 addr,
@@ -485,8 +510,10 @@ int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn)
brcmf_dbg(TRACE, "Enter\n");
/* issue abort cmd52 command through F0 */
+ sdio_claim_host(sdiodev->func[1]);
brcmf_sdioh_request_byte(sdiodev, SDIOH_WRITE, SDIO_FUNC_0,
SDIO_CCCR_ABORT, &t_func);
+ sdio_release_host(sdiodev->func[1]);
brcmf_dbg(TRACE, "Exit\n");
return 0;
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