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wlcore: Propagate errors from wl1271_write

Browse Source 
Propagate errors from wl1271_write and request for recovery when
appropriate.
Also rename prefixes of wlcore functions which their prototypes had to
be changed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Ido Yariv 2012-06-18 13:21:55 +03:00 committed by Luciano Coelho
parent 045b9b5f41
commit eb96f841b9
12 changed files with 102 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/net/wireless/ti/wl12xx/main.c
View File

@ -598,8 +598,10 @@ static const int wl12xx_rtable[REG_TABLE_LEN] = {
#define WL128X_FW_NAME_SINGLE "ti-connectivity/wl128x-fw-4-sr.bin" #define WL128X_FW_NAME_SINGLE "ti-connectivity/wl128x-fw-4-sr.bin"
#define WL128X_PLT_FW_NAME "ti-connectivity/wl128x-fw-4-plt.bin" #define WL128X_PLT_FW_NAME "ti-connectivity/wl128x-fw-4-plt.bin"
static void wl127x_prepare_read(struct wl1271 *wl, u32 rx_desc, u32 len) static int wl127x_prepare_read(struct wl1271 *wl, u32 rx_desc, u32 len)
{ {
int ret;
if (wl->chip.id != CHIP_ID_1283_PG20) { if (wl->chip.id != CHIP_ID_1283_PG20) {
struct wl1271_acx_mem_map *wl_mem_map = wl->target_mem_map; struct wl1271_acx_mem_map *wl_mem_map = wl->target_mem_map;
struct wl127x_rx_mem_pool_addr rx_mem_addr; struct wl127x_rx_mem_pool_addr rx_mem_addr;
@ -616,9 +618,13 @@ static void wl127x_prepare_read(struct wl1271 *wl, u32 rx_desc, u32 len)
rx_mem_addr.addr_extra = rx_mem_addr.addr + 4; rx_mem_addr.addr_extra = rx_mem_addr.addr + 4;
wl1271_write(wl, WL1271_SLV_REG_DATA, ret = wlcore_write(wl, WL1271_SLV_REG_DATA, &rx_mem_addr,
&rx_mem_addr, sizeof(rx_mem_addr), false); sizeof(rx_mem_addr), false);
if (ret < 0)
return ret;
} }
return 0;
} }
static int wl12xx_identify_chip(struct wl1271 *wl) static int wl12xx_identify_chip(struct wl1271 *wl)
@ -1073,11 +1079,18 @@ static int wl12xx_boot(struct wl1271 *wl)
return ret; return ret;
} }
static void wl12xx_trigger_cmd(struct wl1271 *wl, int cmd_box_addr, static int wl12xx_trigger_cmd(struct wl1271 *wl, int cmd_box_addr,
void *buf, size_t len) void *buf, size_t len)
{ {
wl1271_write(wl, cmd_box_addr, buf, len, false); int ret;
ret = wlcore_write(wl, cmd_box_addr, buf, len, false);
if (ret < 0)
return ret;
wlcore_write_reg(wl, REG_INTERRUPT_TRIG, WL12XX_INTR_TRIG_CMD); wlcore_write_reg(wl, REG_INTERRUPT_TRIG, WL12XX_INTR_TRIG_CMD);
return ret;
} }
static void wl12xx_ack_event(struct wl1271 *wl) static void wl12xx_ack_event(struct wl1271 *wl)

19
drivers/net/wireless/ti/wl18xx/main.c
View File

@ -720,10 +720,11 @@ static void wl18xx_pre_upload(struct wl1271 *wl)
tmp = wl1271_read32(wl, WL18XX_SCR_PAD2); tmp = wl1271_read32(wl, WL18XX_SCR_PAD2);
} }
static void wl18xx_set_mac_and_phy(struct wl1271 *wl) static int wl18xx_set_mac_and_phy(struct wl1271 *wl)
{ {
struct wl18xx_priv *priv = wl->priv; struct wl18xx_priv *priv = wl->priv;
size_t len; size_t len;
int ret;
/* the parameters struct is smaller for PG1 */ /* the parameters struct is smaller for PG1 */
if (wl->chip.id == CHIP_ID_185x_PG10) if (wl->chip.id == CHIP_ID_185x_PG10)
@ -732,8 +733,10 @@ static void wl18xx_set_mac_and_phy(struct wl1271 *wl)
len = sizeof(struct wl18xx_mac_and_phy_params); len = sizeof(struct wl18xx_mac_and_phy_params);
wlcore_set_partition(wl, &wl->ptable[PART_PHY_INIT]); wlcore_set_partition(wl, &wl->ptable[PART_PHY_INIT]);
wl1271_write(wl, WL18XX_PHY_INIT_MEM_ADDR, (u8 *)&priv->conf.phy, len, ret = wlcore_write(wl, WL18XX_PHY_INIT_MEM_ADDR, (u8 *)&priv->conf.phy,
false); len, false);
return ret;
} }
static void wl18xx_enable_interrupts(struct wl1271 *wl) static void wl18xx_enable_interrupts(struct wl1271 *wl)
@ -769,7 +772,9 @@ static int wl18xx_boot(struct wl1271 *wl)
if (ret < 0) if (ret < 0)
goto out; goto out;
wl18xx_set_mac_and_phy(wl); ret = wl18xx_set_mac_and_phy(wl);
if (ret < 0)
goto out;
ret = wlcore_boot_run_firmware(wl); ret = wlcore_boot_run_firmware(wl);
if (ret < 0) if (ret < 0)
@ -781,7 +786,7 @@ static int wl18xx_boot(struct wl1271 *wl)
return ret; return ret;
} }
static void wl18xx_trigger_cmd(struct wl1271 *wl, int cmd_box_addr, static int wl18xx_trigger_cmd(struct wl1271 *wl, int cmd_box_addr,
void *buf, size_t len) void *buf, size_t len)
{ {
struct wl18xx_priv *priv = wl->priv; struct wl18xx_priv *priv = wl->priv;
@ -789,8 +794,8 @@ static void wl18xx_trigger_cmd(struct wl1271 *wl, int cmd_box_addr,
memcpy(priv->cmd_buf, buf, len); memcpy(priv->cmd_buf, buf, len);
memset(priv->cmd_buf + len, 0, WL18XX_CMD_MAX_SIZE - len); memset(priv->cmd_buf + len, 0, WL18XX_CMD_MAX_SIZE - len);
wl1271_write(wl, cmd_box_addr, priv->cmd_buf, WL18XX_CMD_MAX_SIZE, return wlcore_write(wl, cmd_box_addr, priv->cmd_buf,
false); WL18XX_CMD_MAX_SIZE, false);
} }
static void wl18xx_ack_event(struct wl1271 *wl) static void wl18xx_ack_event(struct wl1271 *wl)

17
drivers/net/wireless/ti/wlcore/boot.c
View File

@ -111,6 +111,7 @@ static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,
struct wlcore_partition_set partition; struct wlcore_partition_set partition;
int addr, chunk_num, partition_limit; int addr, chunk_num, partition_limit;
u8 *p, *chunk; u8 *p, *chunk;
int ret;
/* whal_FwCtrl_LoadFwImageSm() */ /* whal_FwCtrl_LoadFwImageSm() */
@ -155,7 +156,9 @@ static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,
memcpy(chunk, p, CHUNK_SIZE); memcpy(chunk, p, CHUNK_SIZE);
wl1271_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x", wl1271_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x",
p, addr); p, addr);
wl1271_write(wl, addr, chunk, CHUNK_SIZE, false); ret = wlcore_write(wl, addr, chunk, CHUNK_SIZE, false);
if (ret < 0)
goto out;
chunk_num++; chunk_num++;
} }
@ -166,10 +169,11 @@ static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,
memcpy(chunk, p, fw_data_len % CHUNK_SIZE); memcpy(chunk, p, fw_data_len % CHUNK_SIZE);
wl1271_debug(DEBUG_BOOT, "uploading fw last chunk (%zd B) 0x%p to 0x%x", wl1271_debug(DEBUG_BOOT, "uploading fw last chunk (%zd B) 0x%p to 0x%x",
fw_data_len % CHUNK_SIZE, p, addr); fw_data_len % CHUNK_SIZE, p, addr);
wl1271_write(wl, addr, chunk, fw_data_len % CHUNK_SIZE, false); ret = wlcore_write(wl, addr, chunk, fw_data_len % CHUNK_SIZE, false);
out:
kfree(chunk); kfree(chunk);
return 0; return ret;
} }
int wlcore_boot_upload_firmware(struct wl1271 *wl) int wlcore_boot_upload_firmware(struct wl1271 *wl)
@ -212,6 +216,7 @@ int wlcore_boot_upload_nvs(struct wl1271 *wl)
int i; int i;
u32 dest_addr, val; u32 dest_addr, val;
u8 *nvs_ptr, *nvs_aligned; u8 *nvs_ptr, *nvs_aligned;
int ret;
if (wl->nvs == NULL) { if (wl->nvs == NULL) {
wl1271_error("NVS file is needed during boot"); wl1271_error("NVS file is needed during boot");
@ -343,11 +348,11 @@ int wlcore_boot_upload_nvs(struct wl1271 *wl)
return -ENOMEM; return -ENOMEM;
/* And finally we upload the NVS tables */ /* And finally we upload the NVS tables */
wlcore_write_data(wl, REG_CMD_MBOX_ADDRESS, ret = wlcore_write_data(wl, REG_CMD_MBOX_ADDRESS, nvs_aligned, nvs_len,
nvs_aligned, nvs_len, false); false);
kfree(nvs_aligned); kfree(nvs_aligned);
return 0; return ret;
out_badnvs: out_badnvs:
wl1271_error("nvs data is malformed"); wl1271_error("nvs data is malformed");

12
drivers/net/wireless/ti/wlcore/cmd.c
View File

@ -65,13 +65,17 @@ int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
WARN_ON(len % 4 != 0); WARN_ON(len % 4 != 0);
WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags)); WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
wl1271_write(wl, wl->cmd_box_addr, buf, len, false); ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false);
if (ret < 0)
goto fail;
/* /*
* TODO: we just need this because one bit is in a different * TODO: we just need this because one bit is in a different
* place. Is there any better way? * place. Is there any better way?
*/ */
wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len); ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len);
if (ret < 0)
goto fail;
timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT); timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
@ -1764,7 +1768,9 @@ int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
return -EINVAL; return -EINVAL;
/* flush all pending packets */ /* flush all pending packets */
wl1271_tx_work_locked(wl); ret = wlcore_tx_work_locked(wl);
if (ret < 0)
goto out;
if (test_bit(wlvif->dev_role_id, wl->roc_map)) { if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
ret = wl12xx_croc(wl, wlvif->dev_role_id); ret = wl12xx_croc(wl, wlvif->dev_role_id);

5
drivers/net/wireless/ti/wlcore/event.c
View File

@ -105,6 +105,7 @@ static int wl1271_event_process(struct wl1271 *wl)
u32 vector; u32 vector;
bool disconnect_sta = false; bool disconnect_sta = false;
unsigned long sta_bitmap = 0; unsigned long sta_bitmap = 0;
int ret;
wl1271_event_mbox_dump(mbox); wl1271_event_mbox_dump(mbox);
@ -228,7 +229,9 @@ static int wl1271_event_process(struct wl1271 *wl)
if ((vector & DUMMY_PACKET_EVENT_ID)) { if ((vector & DUMMY_PACKET_EVENT_ID)) {
wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID"); wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
wl1271_tx_dummy_packet(wl); ret = wl1271_tx_dummy_packet(wl);
if (ret < 0)
return ret;
} }
/* /*

6
drivers/net/wireless/ti/wlcore/hw_ops.h
View File

@ -65,11 +65,13 @@ wlcore_hw_get_rx_buf_align(struct wl1271 *wl, u32 rx_desc)
return wl->ops->get_rx_buf_align(wl, rx_desc); return wl->ops->get_rx_buf_align(wl, rx_desc);
} }
static inline void static inline int
wlcore_hw_prepare_read(struct wl1271 *wl, u32 rx_desc, u32 len) wlcore_hw_prepare_read(struct wl1271 *wl, u32 rx_desc, u32 len)
{ {
if (wl->ops->prepare_read) if (wl->ops->prepare_read)
wl->ops->prepare_read(wl, rx_desc, len); return wl->ops->prepare_read(wl, rx_desc, len);
return 0;
} }
static inline u32 static inline u32

8
drivers/net/wireless/ti/wlcore/io.h
View File

@ -102,20 +102,20 @@ static inline int wlcore_read(struct wl1271 *wl, int addr, void *buf,
return wlcore_raw_read(wl, physical, buf, len, fixed); return wlcore_raw_read(wl, physical, buf, len, fixed);
} }
static inline void wl1271_write(struct wl1271 *wl, int addr, void *buf, static inline int wlcore_write(struct wl1271 *wl, int addr, void *buf,
size_t len, bool fixed) size_t len, bool fixed)
{ {
int physical; int physical;
physical = wlcore_translate_addr(wl, addr); physical = wlcore_translate_addr(wl, addr);
wlcore_raw_write(wl, physical, buf, len, fixed); return wlcore_raw_write(wl, physical, buf, len, fixed);
} }
static inline void wlcore_write_data(struct wl1271 *wl, int reg, void *buf, static inline int wlcore_write_data(struct wl1271 *wl, int reg, void *buf,
size_t len, bool fixed) size_t len, bool fixed)
{ {
wl1271_write(wl, wl->rtable[reg], buf, len, fixed); return wlcore_write(wl, wl->rtable[reg], buf, len, fixed);
} }
static inline int wlcore_read_data(struct wl1271 *wl, int reg, void *buf, static inline int wlcore_read_data(struct wl1271 *wl, int reg, void *buf,

13
drivers/net/wireless/ti/wlcore/main.c
View File

@ -587,7 +587,11 @@ static irqreturn_t wl1271_irq(int irq, void *cookie)
* In order to avoid starvation of the TX path, * In order to avoid starvation of the TX path,
* call the work function directly. * call the work function directly.
*/ */
wl1271_tx_work_locked(wl); ret = wlcore_tx_work_locked(wl);
if (ret < 0) {
wl12xx_queue_recovery_work(wl);
goto out;
}
} else { } else {
spin_unlock_irqrestore(&wl->wl_lock, flags); spin_unlock_irqrestore(&wl->wl_lock, flags);
} }
@ -1211,7 +1215,7 @@ int wl1271_tx_dummy_packet(struct wl1271 *wl)
/* The FW is low on RX memory blocks, so send the dummy packet asap */ /* The FW is low on RX memory blocks, so send the dummy packet asap */
if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags)) if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
wl1271_tx_work_locked(wl); return wlcore_tx_work_locked(wl);
/* /*
* If the FW TX is busy, TX work will be scheduled by the threaded * If the FW TX is busy, TX work will be scheduled by the threaded
@ -2513,7 +2517,10 @@ static int wl12xx_config_vif(struct wl1271 *wl, struct wl12xx_vif *wlvif,
(wlvif->channel != channel) || (wlvif->channel != channel) ||
(wlvif->channel_type != conf->channel_type))) { (wlvif->channel_type != conf->channel_type))) {
/* send all pending packets */ /* send all pending packets */
wl1271_tx_work_locked(wl); ret = wlcore_tx_work_locked(wl);
if (ret < 0)
return ret;
wlvif->band = conf->channel->band; wlvif->band = conf->channel->band;
wlvif->channel = channel; wlvif->channel = channel;
wlvif->channel_type = conf->channel_type; wlvif->channel_type = conf->channel_type;

4
drivers/net/wireless/ti/wlcore/rx.c
View File

@ -235,7 +235,9 @@ int wlcore_rx(struct wl1271 *wl, struct wl_fw_status_1 *status)
/* Read all available packets at once */ /* Read all available packets at once */
des = le32_to_cpu(status->rx_pkt_descs[drv_rx_counter]); des = le32_to_cpu(status->rx_pkt_descs[drv_rx_counter]);
wlcore_hw_prepare_read(wl, des, buf_size); ret = wlcore_hw_prepare_read(wl, des, buf_size);
if (ret < 0)
goto out;
ret = wlcore_read_data(wl, REG_SLV_MEM_DATA, wl->aggr_buf, ret = wlcore_read_data(wl, REG_SLV_MEM_DATA, wl->aggr_buf,
buf_size, true); buf_size, true);

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

@ -662,7 +662,7 @@ void wl12xx_rearm_rx_streaming(struct wl1271 *wl, unsigned long *active_hlids)
} }
} }
void wl1271_tx_work_locked(struct wl1271 *wl) int wlcore_tx_work_locked(struct wl1271 *wl)
{ {
struct wl12xx_vif *wlvif; struct wl12xx_vif *wlvif;
struct sk_buff *skb; struct sk_buff *skb;
@ -670,10 +670,10 @@ void wl1271_tx_work_locked(struct wl1271 *wl)
u32 buf_offset = 0, last_len = 0; u32 buf_offset = 0, last_len = 0;
bool sent_packets = false; bool sent_packets = false;
unsigned long active_hlids[BITS_TO_LONGS(WL12XX_MAX_LINKS)] = {0}; unsigned long active_hlids[BITS_TO_LONGS(WL12XX_MAX_LINKS)] = {0};
int ret; int ret = 0;
if (unlikely(wl->state == WL1271_STATE_OFF)) if (unlikely(wl->state == WL1271_STATE_OFF))
return; return -EIO;
while ((skb = wl1271_skb_dequeue(wl))) { while ((skb = wl1271_skb_dequeue(wl))) {
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@ -694,8 +694,11 @@ void wl1271_tx_work_locked(struct wl1271 *wl)
buf_offset = wlcore_hw_pre_pkt_send(wl, buf_offset, buf_offset = wlcore_hw_pre_pkt_send(wl, buf_offset,
last_len); last_len);
wlcore_write_data(wl, REG_SLV_MEM_DATA, wl->aggr_buf, ret = wlcore_write_data(wl, REG_SLV_MEM_DATA,
buf_offset, true); wl->aggr_buf, buf_offset, true);
if (ret < 0)
goto out;
sent_packets = true; sent_packets = true;
buf_offset = 0; buf_offset = 0;
continue; continue;
@ -731,8 +734,11 @@ void wl1271_tx_work_locked(struct wl1271 *wl)
out_ack: out_ack:
if (buf_offset) { if (buf_offset) {
buf_offset = wlcore_hw_pre_pkt_send(wl, buf_offset, last_len); buf_offset = wlcore_hw_pre_pkt_send(wl, buf_offset, last_len);
wlcore_write_data(wl, REG_SLV_MEM_DATA, wl->aggr_buf, ret = wlcore_write_data(wl, REG_SLV_MEM_DATA, wl->aggr_buf,
buf_offset, true); buf_offset, true);
if (ret < 0)
goto out;
sent_packets = true; sent_packets = true;
} }
if (sent_packets) { if (sent_packets) {
@ -747,6 +753,9 @@ void wl1271_tx_work_locked(struct wl1271 *wl)
wl1271_handle_tx_low_watermark(wl); wl1271_handle_tx_low_watermark(wl);
} }
wl12xx_rearm_rx_streaming(wl, active_hlids); wl12xx_rearm_rx_streaming(wl, active_hlids);
out:
return ret;
} }
void wl1271_tx_work(struct work_struct *work) void wl1271_tx_work(struct work_struct *work)
@ -759,7 +768,11 @@ void wl1271_tx_work(struct work_struct *work)
if (ret < 0) if (ret < 0)
goto out; goto out;
wl1271_tx_work_locked(wl); ret = wlcore_tx_work_locked(wl);
if (ret < 0) {
wl12xx_queue_recovery_work(wl);
goto out;
}
wl1271_ps_elp_sleep(wl); wl1271_ps_elp_sleep(wl);
out: out:

2
drivers/net/wireless/ti/wlcore/tx.h
View File

@ -234,7 +234,7 @@ static inline int wl1271_tx_total_queue_count(struct wl1271 *wl)
} }
void wl1271_tx_work(struct work_struct *work); void wl1271_tx_work(struct work_struct *work);
void wl1271_tx_work_locked(struct wl1271 *wl); int wlcore_tx_work_locked(struct wl1271 *wl);
int wlcore_tx_complete(struct wl1271 *wl); int wlcore_tx_complete(struct wl1271 *wl);
void wl12xx_tx_reset_wlvif(struct wl1271 *wl, struct wl12xx_vif *wlvif); void wl12xx_tx_reset_wlvif(struct wl1271 *wl, struct wl12xx_vif *wlvif);
void wl12xx_tx_reset(struct wl1271 *wl); void wl12xx_tx_reset(struct wl1271 *wl);

4
drivers/net/wireless/ti/wlcore/wlcore.h
View File

@ -41,7 +41,7 @@ struct wlcore_ops {
int (*identify_fw)(struct wl1271 *wl); int (*identify_fw)(struct wl1271 *wl);
int (*boot)(struct wl1271 *wl); int (*boot)(struct wl1271 *wl);
int (*plt_init)(struct wl1271 *wl); int (*plt_init)(struct wl1271 *wl);
void (*trigger_cmd)(struct wl1271 *wl, int cmd_box_addr, int (*trigger_cmd)(struct wl1271 *wl, int cmd_box_addr,
void *buf, size_t len); void *buf, size_t len);
void (*ack_event)(struct wl1271 *wl); void (*ack_event)(struct wl1271 *wl);
u32 (*calc_tx_blocks)(struct wl1271 *wl, u32 len, u32 spare_blks); u32 (*calc_tx_blocks)(struct wl1271 *wl, u32 len, u32 spare_blks);
@ -53,7 +53,7 @@ struct wlcore_ops {
struct sk_buff *skb); struct sk_buff *skb);
enum wl_rx_buf_align (*get_rx_buf_align)(struct wl1271 *wl, enum wl_rx_buf_align (*get_rx_buf_align)(struct wl1271 *wl,
u32 rx_desc); u32 rx_desc);
void (*prepare_read)(struct wl1271 *wl, u32 rx_desc, u32 len); int (*prepare_read)(struct wl1271 *wl, u32 rx_desc, u32 len);
u32 (*get_rx_packet_len)(struct wl1271 *wl, void *rx_data, u32 (*get_rx_packet_len)(struct wl1271 *wl, void *rx_data,
u32 data_len); u32 data_len);
int (*tx_delayed_compl)(struct wl1271 *wl); int (*tx_delayed_compl)(struct wl1271 *wl);