diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/wmi.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/wmi.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index b802ca9c0edf..ae5f541ec966 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -29,6 +29,9 @@ #include "p2p.h" #include "hw.h" +#define ATH10K_WMI_BARRIER_ECHO_ID 0xBA991E9 +#define ATH10K_WMI_BARRIER_TIMEOUT_HZ (3 * HZ) + /* MAIN WMI cmd track */ static struct wmi_cmd_map wmi_cmd_map = { .init_cmdid = WMI_INIT_CMDID, @@ -2507,6 +2510,9 @@ void ath10k_wmi_event_echo(struct ath10k *ar, struct sk_buff *skb) ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi event echo value 0x%08x\n", le32_to_cpu(arg.value)); + + if (le32_to_cpu(arg.value) == ATH10K_WMI_BARRIER_ECHO_ID) + complete(&ar->wmi.barrier); } int ath10k_wmi_event_debug_mesg(struct ath10k *ar, struct sk_buff *skb) @@ -7715,6 +7721,30 @@ ath10k_wmi_op_gen_echo(struct ath10k *ar, u32 value) return skb; } +int +ath10k_wmi_barrier(struct ath10k *ar) +{ + int ret; + int time_left; + + spin_lock_bh(&ar->data_lock); + reinit_completion(&ar->wmi.barrier); + spin_unlock_bh(&ar->data_lock); + + ret = ath10k_wmi_echo(ar, ATH10K_WMI_BARRIER_ECHO_ID); + if (ret) { + ath10k_warn(ar, "failed to submit wmi echo: %d\n", ret); + return ret; + } + + time_left = wait_for_completion_timeout(&ar->wmi.barrier, + ATH10K_WMI_BARRIER_TIMEOUT_HZ); + if (!time_left) + return -ETIMEDOUT; + + return 0; +} + static const struct wmi_ops wmi_ops = { .rx = ath10k_wmi_op_rx, .map_svc = wmi_main_svc_map, @@ -8112,6 +8142,7 @@ int ath10k_wmi_attach(struct ath10k *ar) init_completion(&ar->wmi.service_ready); init_completion(&ar->wmi.unified_ready); + init_completion(&ar->wmi.barrier); INIT_WORK(&ar->svc_rdy_work, ath10k_wmi_event_service_ready_work); |