---
.../wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 76 +++++++++++++++-------
1 file changed, 52 insertions(+), 24 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
index 06e6a72245a7..0d5004e18cb0 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
@@ -458,8 +458,8 @@ void brcmf_sdiod_regwl(struct brcmf_sdio_dev *sdiodev, u32
addr,
*ret = retval;
}
-static int brcmf_sdiod_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
- bool write, u32 addr, struct sk_buff *pkt)
+static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev, uint fn,
+ u32 addr, struct sk_buff *pkt)
{
unsigned int req_sz;
int err;
@@ -468,18 +468,36 @@ static int brcmf_sdiod_buffrw(struct brcmf_sdio_dev
*sdiodev, uint fn,
req_sz = pkt->len + 3;
req_sz &= (uint)~3;
- if (write)
- err = sdio_memcpy_toio(sdiodev->func[fn], addr,
- ((u8 *)(pkt->data)), req_sz);
- else if (fn == 1)
- err = sdio_memcpy_fromio(sdiodev->func[fn], ((u8 *)(pkt->data)),
- addr, req_sz);
+ if (fn == 1)
+ err = sdio_memcpy_fromio(sdiodev->func[fn],
+ ((u8 *)(pkt->data)), addr, req_sz);
else
/* function 2 read is FIFO operation */
- err = sdio_readsb(sdiodev->func[fn], ((u8 *)(pkt->data)), addr,
- req_sz);
+ err = sdio_readsb(sdiodev->func[fn],
+ ((u8 *)(pkt->data)), addr, req_sz);
+
if (err == -ENOMEDIUM)
brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM);
+
+ return err;
+}
+
+static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn,
+ u32 addr, struct sk_buff *pkt)
+{
+ unsigned int req_sz;
+ int err;
+
+ /* Single skb use the standard mmc interface */
+ req_sz = pkt->len + 3;
+ req_sz &= (uint)~3;
+
+ err = sdio_memcpy_toio(sdiodev->func[fn], addr,
+ ((u8 *)(pkt->data)), req_sz);
+
+ if (err == -ENOMEDIUM)
+ brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM);
+
return err;
}
@@ -687,7 +705,7 @@ int brcmf_sdiod_recv_pkt(struct brcmf_sdio_dev *sdiodev,
struct sk_buff *pkt)
if (err)
goto done;
- err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr, pkt);
+ err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr, pkt);
done:
return err;
@@ -709,13 +727,13 @@ int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
goto done;
if (pktq->qlen == 1)
- err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr,
+ err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr,
pktq->next);
else if (!sdiodev->sg_support) {
glom_skb = brcmu_pkt_buf_get_skb(totlen);
if (!glom_skb)
return -ENOMEM;
- err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr,
+ err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr,
glom_skb);
if (err) {
brcmu_pkt_buf_free_skb(glom_skb);
@@ -741,6 +759,7 @@ int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev, u8
*buf, uint nbytes)
int err;
mypkt = brcmu_pkt_buf_get_skb(nbytes);
+
if (!mypkt) {
brcmf_err("brcmu_pkt_buf_get_skb failed: len %d\n",
nbytes);
@@ -752,10 +771,10 @@ int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev,
u8 *buf, uint nbytes)
err = brcmf_sdiod_addrprep(sdiodev, &addr);
if (!err)
- err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, true, addr,
- mypkt);
+ err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_2, addr, mypkt);
brcmu_pkt_buf_free_skb(mypkt);
+
return err;
}
@@ -775,7 +794,7 @@ int brcmf_sdiod_send_pkt(struct brcmf_sdio_dev *sdiodev,
if (pktq->qlen == 1 || !sdiodev->sg_support)
skb_queue_walk(pktq, skb) {
- err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, true,
+ err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_2,
addr, skb);
if (err)
break;
@@ -791,7 +810,7 @@ int
brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
u8 *data, uint size)
{
- int bcmerror = 0;
+ int err = 0;
struct sk_buff *pkt;
u32 sdaddr;
uint dsize;
@@ -815,9 +834,10 @@ brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool
write, u32 address,
/* Do the transfer(s) */
while (size) {
+
/* Set the backplane window to include the start address */
- bcmerror = brcmf_sdiod_set_sbaddr_window(sdiodev, address);
- if (bcmerror)
+ err = brcmf_sdiod_set_sbaddr_window(sdiodev, address);
+ if (err)
break;
brcmf_dbg(SDIO, "%s %d bytes at offset 0x%08x in window
0x%08x\n",
@@ -828,14 +848,22 @@ brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool
write, u32 address,
sdaddr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
skb_put(pkt, dsize);
- if (write)
+
+ if (write) {
memcpy(pkt->data, data, dsize);
- bcmerror = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_1, write,
- sdaddr, pkt);
- if (bcmerror) {
+ err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_1,
+ sdaddr, pkt);
+ }
+ else {
+ err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_1,
+ sdaddr, pkt);
+ }
+
+ if (err) {
brcmf_err("membytes transfer failed\n");
break;
}
+
if (!write)
memcpy(data, pkt->data, dsize);
skb_trim(pkt, 0);
@@ -859,7 +887,7 @@ brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool
write, u32 address,
sdio_release_host(sdiodev->func[1]);
- return bcmerror;
+ return err;
}
int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, uint fn)
--
2.11.0
