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ath6kl: Recover from "wmi ctrl ep is full" condition

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In some error conditions, fw pauses HTC pipes which would
result in control endpoint full condition. When we hit this
case, most of the time the device will be unusable. Re-initialize
the target to recover from this situation.

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 2012-08-29 19:40:28 +05:30 committed by Kalle Valo
parent 9233299394
commit 77565794eb
3 changed files with 4 additions and 0 deletions
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1
drivers/net/wireless/ath/ath6kl/core.h
View File

@ -660,6 +660,7 @@ enum ath6kl_state {
enum ath6kl_fw_err {
ATH6KL_FW_ASSERT,
ATH6KL_FW_HB_RESP_FAILURE,
ATH6KL_FW_EP_FULL,
};
struct ath6kl {

2
drivers/net/wireless/ath/ath6kl/recovery.c
View File

@ -30,6 +30,8 @@ static void ath6kl_recovery_work(struct work_struct *work)
ath6kl_init_hw_restart(ar);
ar->state = ATH6KL_STATE_ON;
clear_bit(WMI_CTRL_EP_FULL, &ar->flag);
ar->fw_recovery.err_reason = 0;
if (ar->fw_recovery.enable)

1
drivers/net/wireless/ath/ath6kl/txrx.c
View File

@ -594,6 +594,7 @@ enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
*/
set_bit(WMI_CTRL_EP_FULL, &ar->flag);
ath6kl_err("wmi ctrl ep is full\n");
ath6kl_recovery_err_notify(ar, ATH6KL_FW_EP_FULL);
return action;
}