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brcmfmac: remove function brcmf_sdcard_regfail 

The new interface brcmf_sdio_regr/w provides result of access
attempts. It is no longer necessary to use dedicated variable
and function to provide enquiry for failure.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Franky Lin 2012-05-04 18:27:37 -07:00 committed by John W. Linville
parent 5869275050
commit 5c15c23a7b
3 changed files with 24 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
View File

@ -237,8 +237,7 @@ brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
func_num, addr, data, 4);
} while (ret != 0 && retry++ < SDIOH_API_ACCESS_RETRY_LIMIT);
sdiodev->regfail = (ret != 0);
if (sdiodev->regfail)
if (ret != 0)
brcmf_dbg(ERROR, "failed with %d\n", ret);
return ret;
@ -298,11 +297,6 @@ void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
*ret = retval;
}
bool brcmf_sdcard_regfail(struct brcmf_sdio_dev *sdiodev)
{
return sdiodev->regfail;
}
static int brcmf_sdcard_recv_prepare(struct brcmf_sdio_dev *sdiodev, uint fn,
uint flags, uint width, u32 *addr)
{

46
drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
View File

@ -1026,9 +1026,9 @@ static void brcmf_sdbrcm_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx)
/* Wait until the packet has been flushed (device/FIFO stable) */
for (lastrbc = retries = 0xffff; retries > 0; retries--) {
hi = brcmf_sdio_regrb(bus->sdiodev,
SBSDIO_FUNC1_RFRAMEBCHI, NULL);
SBSDIO_FUNC1_RFRAMEBCHI, &err);
lo = brcmf_sdio_regrb(bus->sdiodev,
SBSDIO_FUNC1_RFRAMEBCLO, NULL);
SBSDIO_FUNC1_RFRAMEBCLO, &err);
bus->f1regdata += 2;
if ((hi == 0) && (lo == 0))
@ -1060,7 +1060,7 @@ static void brcmf_sdbrcm_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx)
bus->nextlen = 0;
/* If we can't reach the device, signal failure */
if (err || brcmf_sdcard_regfail(bus->sdiodev))
if (err)
bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
}
@ -2221,10 +2221,11 @@ static uint brcmf_sdbrcm_sendfromq(struct brcmf_sdio *bus, uint maxframes)
/* In poll mode, need to check for other events */
if (!bus->intr && cnt) {
/* Check device status, signal pending interrupt */
r_sdreg32(bus, &intstatus,
offsetof(struct sdpcmd_regs, intstatus));
ret = r_sdreg32(bus, &intstatus,
offsetof(struct sdpcmd_regs,
intstatus));
bus->f2txdata++;
if (brcmf_sdcard_regfail(bus->sdiodev))
if (ret != 0)
break;
if (intstatus & bus->hostintmask)
bus->ipend = true;
@ -2347,6 +2348,7 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
uint framecnt = 0; /* Temporary counter of tx/rx frames */
bool rxdone = true; /* Flag for no more read data */
bool resched = false; /* Flag indicating resched wanted */
int err;
brcmf_dbg(TRACE, "Enter\n");
@ -2357,7 +2359,6 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
/* If waiting for HTAVAIL, check status */
if (bus->clkstate == CLK_PENDING) {
int err;
u8 clkctl, devctl = 0;
#ifdef DEBUG
@ -2414,16 +2415,17 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
/* Pending interrupt indicates new device status */
if (bus->ipend) {
bus->ipend = false;
r_sdreg32(bus, &newstatus,
offsetof(struct sdpcmd_regs, intstatus));
err = r_sdreg32(bus, &newstatus,
offsetof(struct sdpcmd_regs, intstatus));
bus->f1regdata++;
if (brcmf_sdcard_regfail(bus->sdiodev))
if (err != 0)
newstatus = 0;
newstatus &= bus->hostintmask;
bus->fcstate = !!(newstatus & I_HMB_FC_STATE);
if (newstatus) {
w_sdreg32(bus, newstatus,
offsetof(struct sdpcmd_regs, intstatus));
err = w_sdreg32(bus, newstatus,
offsetof(struct sdpcmd_regs,
intstatus));
bus->f1regdata++;
}
}
@ -2438,11 +2440,11 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
*/
if (intstatus & I_HMB_FC_CHANGE) {
intstatus &= ~I_HMB_FC_CHANGE;
w_sdreg32(bus, I_HMB_FC_CHANGE,
offsetof(struct sdpcmd_regs, intstatus));
err = w_sdreg32(bus, I_HMB_FC_CHANGE,
offsetof(struct sdpcmd_regs, intstatus));
r_sdreg32(bus, &newstatus,
offsetof(struct sdpcmd_regs, intstatus));
err = r_sdreg32(bus, &newstatus,
offsetof(struct sdpcmd_regs, intstatus));
bus->f1regdata += 2;
bus->fcstate =
!!(newstatus & (I_HMB_FC_STATE | I_HMB_FC_CHANGE));
@ -2513,17 +2515,17 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
brcmf_sdcard_abort(bus->sdiodev, SDIO_FUNC_2);
brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_FRAMECTRL,
SFC_WF_TERM, NULL);
SFC_WF_TERM, &err);
bus->f1regdata++;
for (i = 0; i < 3; i++) {
u8 hi, lo;
hi = brcmf_sdio_regrb(bus->sdiodev,
SBSDIO_FUNC1_WFRAMEBCHI,
NULL);
&err);
lo = brcmf_sdio_regrb(bus->sdiodev,
SBSDIO_FUNC1_WFRAMEBCLO,
NULL);
&err);
bus->f1regdata += 2;
if ((hi == 0) && (lo == 0))
break;
@ -2550,10 +2552,8 @@ static bool brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
else await next interrupt */
/* On failed register access, all bets are off:
no resched or interrupts */
if ((bus->sdiodev->bus_if->state == BRCMF_BUS_DOWN) ||
brcmf_sdcard_regfail(bus->sdiodev)) {
brcmf_dbg(ERROR, "failed backplane access over SDIO, halting operation %d\n",
brcmf_sdcard_regfail(bus->sdiodev));
if ((bus->sdiodev->bus_if->state == BRCMF_BUS_DOWN) || (err != 0)) {
brcmf_dbg(ERROR, "failed backplane access over SDIO, halting operation\n");
bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
bus->intstatus = 0;
} else if (bus->clkstate == CLK_PENDING) {

4
drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
View File

@ -146,7 +146,6 @@ struct brcmf_sdio_dev {
u8 num_funcs; /* Supported funcs on client */
u32 func_cis_ptr[SDIOD_MAX_IOFUNCS];
u32 sbwad; /* Save backplane window address */
bool regfail; /* status of last reg_r/w call */
void *bus;
atomic_t suspend; /* suspend flag */
wait_queue_head_t request_byte_wait;
@ -176,9 +175,6 @@ extern void brcmf_sdio_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr,
extern void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
u32 data, int *ret);
/* Indicate if last reg read/write failed */
extern bool brcmf_sdcard_regfail(struct brcmf_sdio_dev *sdiodev);
/* Buffer transfer to/from device (client) core via cmd53.
* fn: function number
* addr: backplane address (i.e. >= regsva from attach)