openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

wlcore: Propagate errors from wlcore_raw_*_data functions 

wlcore_raw_read_data is called when the FW status is read which happens
while handling interrupts and when the FW log is read following a
recovery. Request a recovery in the former case, and don't read the FW
log in case the FW status read failed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Ido Yariv 2012-06-17 21:59:42 +03:00 committed by Luciano Coelho
parent 0c2a6ce04e
commit 8b7c0fc356
2 changed files with 26 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/net/wireless/ti/wlcore/io.h
View File

@ -65,16 +65,16 @@ static inline int wlcore_raw_read(struct wl1271 *wl, int addr, void *buf,
return wl->if_ops->read(wl->dev, addr, buf, len, fixed);
}
static inline void wlcore_raw_read_data(struct wl1271 *wl, int reg, void *buf,
size_t len, bool fixed)
static inline int wlcore_raw_read_data(struct wl1271 *wl, int reg, void *buf,
size_t len, bool fixed)
{
wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
return wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
}
static inline void wlcore_raw_write_data(struct wl1271 *wl, int reg, void *buf,
size_t len, bool fixed)
static inline int wlcore_raw_write_data(struct wl1271 *wl, int reg, void *buf,
size_t len, bool fixed)
{
wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
return wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
}
static inline u32 wl1271_raw_read32(struct wl1271 *wl, int addr)

27
drivers/net/wireless/ti/wlcore/main.c
View File

@ -378,9 +378,9 @@ static void wl12xx_irq_update_links_status(struct wl1271 *wl,
}
}
static void wl12xx_fw_status(struct wl1271 *wl,
struct wl_fw_status_1 *status_1,
struct wl_fw_status_2 *status_2)
static int wlcore_fw_status(struct wl1271 *wl,
struct wl_fw_status_1 *status_1,
struct wl_fw_status_2 *status_2)
{
struct wl12xx_vif *wlvif;
struct timespec ts;
@ -388,12 +388,15 @@ static void wl12xx_fw_status(struct wl1271 *wl,
int avail, freed_blocks;
int i;
size_t status_len;
int ret;
status_len = WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
sizeof(*status_2) + wl->fw_status_priv_len;
wlcore_raw_read_data(wl, REG_RAW_FW_STATUS_ADDR, status_1,
status_len, false);
ret = wlcore_raw_read_data(wl, REG_RAW_FW_STATUS_ADDR, status_1,
status_len, false);
if (ret < 0)
return ret;
wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
"drv_rx_counter = %d, tx_results_counter = %d)",
@ -462,6 +465,8 @@ static void wl12xx_fw_status(struct wl1271 *wl,
getnstimeofday(&ts);
wl->time_offset = (timespec_to_ns(&ts) >> 10) -
(s64)le32_to_cpu(status_2->fw_localtime);
return 0;
}
static void wl1271_flush_deferred_work(struct wl1271 *wl)
@ -530,7 +535,11 @@ static irqreturn_t wl1271_irq(int irq, void *cookie)
clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
smp_mb__after_clear_bit();
wl12xx_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
ret = wlcore_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
if (ret < 0) {
wl12xx_queue_recovery_work(wl);
goto out;
}
wlcore_hw_tx_immediate_compl(wl);
@ -781,6 +790,7 @@ static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
u32 offset;
u32 end_of_log;
u8 *block;
int ret;
if ((wl->quirks & WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
(wl->conf.fwlog.mem_blocks == 0))
@ -802,7 +812,10 @@ static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
wl12xx_cmd_stop_fwlog(wl);
/* Read the first memory block address */
wl12xx_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
ret = wlcore_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
if (ret < 0)
goto out;
addr = le32_to_cpu(wl->fw_status_2->log_start_addr);
if (!addr)
goto out;