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ath6kl: Refactor ath6kl_sdio_read_write_sync() 

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2011-07-16 20:29:16 +05:30 committed by Kalle Valo
parent 4a005c3ed0
commit da220695f0
1 changed files with 30 additions and 21 deletions
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49
drivers/net/wireless/ath/ath6kl/sdio.c
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@ -128,6 +128,33 @@ static int ath6kl_sdio_func0_cmd52_wr_byte(struct mmc_card *card,
return mmc_wait_for_cmd(card->host, &io_cmd, 0);
}
static int ath6kl_sdio_io(struct sdio_func *func, u32 request, u32 addr,
u8 *buf, u32 len)
{
int ret = 0;
if (request & HIF_WRITE) {
if (addr >= HIF_MBOX_BASE_ADDR &&
addr <= HIF_MBOX_END_ADDR)
addr += (HIF_MBOX_WIDTH - len);
if (addr == HIF_MBOX0_EXT_BASE_ADDR)
addr += HIF_MBOX0_EXT_WIDTH - len;
if (request & HIF_FIXED_ADDRESS)
ret = sdio_writesb(func, addr, buf, len);
else
ret = sdio_memcpy_toio(func, addr, buf, len);
} else {
if (request & HIF_FIXED_ADDRESS)
ret = sdio_readsb(func, buf, addr, len);
else
ret = sdio_memcpy_fromio(func, buf, addr, len);
}
return ret;
}
static struct bus_request *ath6kl_sdio_alloc_busreq(struct ath6kl_sdio *ar_sdio)
{
struct bus_request *bus_req;
@ -355,27 +382,9 @@ static int ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf,
tbuf = buf;
sdio_claim_host(ar_sdio->func);
if (request & HIF_WRITE) {
if (addr >= HIF_MBOX_BASE_ADDR &&
addr <= HIF_MBOX_END_ADDR)
addr += (HIF_MBOX_WIDTH - len);
if (addr == HIF_MBOX0_EXT_BASE_ADDR)
addr += HIF_MBOX0_EXT_WIDTH - len;
if (request & HIF_FIXED_ADDRESS)
ret = sdio_writesb(ar_sdio->func, addr, tbuf, len);
else
ret = sdio_memcpy_toio(ar_sdio->func, addr, tbuf, len);
} else {
if (request & HIF_FIXED_ADDRESS)
ret = sdio_readsb(ar_sdio->func, tbuf, addr, len);
else
ret = sdio_memcpy_fromio(ar_sdio->func, tbuf,
addr, len);
if (bounced)
ret = ath6kl_sdio_io(ar_sdio->func, request, addr, tbuf, len);
if ((request & HIF_READ) && bounced)
memcpy(buf, tbuf, len);
}
sdio_release_host(ar_sdio->func);
return ret;