diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/debug.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/debug.c | 157 |
1 files changed, 1 insertions, 156 deletions
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c index 760ff22..3d65594 100644 --- a/drivers/net/wireless/ath/ath10k/debug.c +++ b/drivers/net/wireless/ath/ath10k/debug.c @@ -21,9 +21,6 @@ #include "core.h" #include "debug.h" -/* ms */ -#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000 - static int ath10k_printk(const char *level, const char *fmt, ...) { struct va_format vaf; @@ -263,6 +260,7 @@ void ath10k_debug_read_target_stats(struct ath10k *ar, } spin_unlock_bh(&ar->data_lock); + mutex_unlock(&ar->conf_mutex); complete(&ar->debug.event_stats_compl); } @@ -501,144 +499,6 @@ static const struct file_operations fops_simulate_fw_crash = { .llseek = default_llseek, }; -static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ath10k *ar = file->private_data; - unsigned int len; - char buf[50]; - - len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id); - - return simple_read_from_buffer(user_buf, count, ppos, buf, len); -} - -static const struct file_operations fops_chip_id = { - .read = ath10k_read_chip_id, - .open = simple_open, - .owner = THIS_MODULE, - .llseek = default_llseek, -}; - -static int ath10k_debug_htt_stats_req(struct ath10k *ar) -{ - u64 cookie; - int ret; - - lockdep_assert_held(&ar->conf_mutex); - - if (ar->debug.htt_stats_mask == 0) - /* htt stats are disabled */ - return 0; - - if (ar->state != ATH10K_STATE_ON) - return 0; - - cookie = get_jiffies_64(); - - ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask, - cookie); - if (ret) { - ath10k_warn("failed to send htt stats request: %d\n", ret); - return ret; - } - - queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork, - msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL)); - - return 0; -} - -static void ath10k_debug_htt_stats_dwork(struct work_struct *work) -{ - struct ath10k *ar = container_of(work, struct ath10k, - debug.htt_stats_dwork.work); - - mutex_lock(&ar->conf_mutex); - - ath10k_debug_htt_stats_req(ar); - - mutex_unlock(&ar->conf_mutex); -} - -static ssize_t ath10k_read_htt_stats_mask(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ath10k *ar = file->private_data; - char buf[32]; - unsigned int len; - - len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask); - - return simple_read_from_buffer(user_buf, count, ppos, buf, len); -} - -static ssize_t ath10k_write_htt_stats_mask(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ath10k *ar = file->private_data; - unsigned long mask; - int ret; - - ret = kstrtoul_from_user(user_buf, count, 0, &mask); - if (ret) - return ret; - - /* max 8 bit masks (for now) */ - if (mask > 0xff) - return -E2BIG; - - mutex_lock(&ar->conf_mutex); - - ar->debug.htt_stats_mask = mask; - - ret = ath10k_debug_htt_stats_req(ar); - if (ret) - goto out; - - ret = count; - -out: - mutex_unlock(&ar->conf_mutex); - - return ret; -} - -static const struct file_operations fops_htt_stats_mask = { - .read = ath10k_read_htt_stats_mask, - .write = ath10k_write_htt_stats_mask, - .open = simple_open, - .owner = THIS_MODULE, - .llseek = default_llseek, -}; - -int ath10k_debug_start(struct ath10k *ar) -{ - int ret; - - lockdep_assert_held(&ar->conf_mutex); - - ret = ath10k_debug_htt_stats_req(ar); - if (ret) - /* continue normally anyway, this isn't serious */ - ath10k_warn("failed to start htt stats workqueue: %d\n", ret); - - return 0; -} - -void ath10k_debug_stop(struct ath10k *ar) -{ - lockdep_assert_held(&ar->conf_mutex); - - /* Must not use _sync to avoid deadlock, we do that in - * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid - * warning from del_timer(). */ - if (ar->debug.htt_stats_mask != 0) - cancel_delayed_work(&ar->debug.htt_stats_dwork); -} - int ath10k_debug_create(struct ath10k *ar) { ar->debug.debugfs_phy = debugfs_create_dir("ath10k", @@ -647,9 +507,6 @@ int ath10k_debug_create(struct ath10k *ar) if (!ar->debug.debugfs_phy) return -ENOMEM; - INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork, - ath10k_debug_htt_stats_dwork); - init_completion(&ar->debug.event_stats_compl); debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar, @@ -661,20 +518,8 @@ int ath10k_debug_create(struct ath10k *ar) debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy, ar, &fops_simulate_fw_crash); - debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy, - ar, &fops_chip_id); - - debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy, - ar, &fops_htt_stats_mask); - return 0; } - -void ath10k_debug_destroy(struct ath10k *ar) -{ - cancel_delayed_work_sync(&ar->debug.htt_stats_dwork); -} - #endif /* CONFIG_ATH10K_DEBUGFS */ #ifdef CONFIG_ATH10K_DEBUG |