Add the support to enable/disable the recording of
debug events history.
The enable/disable of the history from debugfs will
not make any affect if its not enabled via module
parameter.
Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1
Signed-off-by: Rakesh Pillai <pill...@codeaurora.org>
---
drivers/net/wireless/ath/ath10k/debug.c | 56 +++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/debug.c
b/drivers/net/wireless/ath/ath10k/debug.c
index 5d08652..6785fae 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -610,6 +610,59 @@ static const struct file_operations fops_simulate_fw_crash
= {
.llseek = default_llseek,
};
+static ssize_t ath10k_read_history_enable(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ const char buf[] =
+ "To enable recording of certain event history, write to this
file with the enable mask\n"
+ "BIT(0): Enable Reg Access history\n"
+ " - Register write events\n"
+ " - Register read events\n"
+ "BIT(1): Enable CE events history\n"
+ " - ATH10K_IRQ_TRIGGER event\n"
+ " - ATH10K_NAPI_POLL event\n"
+ " - ATH10K_CE_SERVICE event\n"
+ " - ATH10K_NAPI_COMPLETE event\n"
+ " - ATH10K_NAPI_RESCHED event\n"
+ " - ATH10K_IRQ_SUMMARY event\n"
+ "BIT(2): Enable WMI CMD history\n"
+ " - WMI CMD event\n"
+ " - WMI CMD TX completion event\n"
+ "BIT(3): Enable WMI events history\n"
+ " - WMI Events event\n";
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
+}
+
+static ssize_t ath10k_write_history_enable(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ u32 history_enable_mask;
+ int i, ret;
+
+ ret = kstrtou32_from_user(user_buf, count, 0, &history_enable_mask);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < ATH10K_HISTORY_MAX; i++)
+ if (history_enable_mask & BIT(i))
+ set_bit(i, &ath10k_history_enable_mask);
+ else
+ clear_bit(i, &ath10k_history_enable_mask);
+
+ return count;
+}
+
+static const struct file_operations fops_history_enable = {
+ .read = ath10k_read_history_enable,
+ .write = ath10k_write_history_enable,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
@@ -2658,6 +2711,9 @@ int ath10k_debug_register(struct ath10k *ar)
debugfs_create_file("reset_htt_stats", 0200, ar->debug.debugfs_phy, ar,
&fops_reset_htt_stats);
+ debugfs_create_file("history_enable", 0644, ar->debug.debugfs_phy, ar,
+ &fops_history_enable);
+
return 0;
}
--
2.7.4
