From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
Using debugfs. More convenient than module options
in some cases.
Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/debug.c | 62 +++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index e251155..d552a4a 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -870,6 +870,65 @@ static const struct file_operations fops_reg_addr = {
.llseek = default_llseek,
};
+static ssize_t ath10k_read_debug_level(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ int sz;
+ const char buf[] =
+ "To change debug level, set value adding up desired flags:\n"
+ "PCI: 0x1\n"
+ "WMI: 0x2\n"
+ "HTC: 0x4\n"
+ "HTT: 0x8\n"
+ "MAC: 0x10\n"
+ "BOOT: 0x20\n"
+ "PCI-DUMP: 0x40\n"
+ "HTT-DUMP: 0x80\n"
+ "MGMT: 0x100\n"
+ "DATA: 0x200\n"
+ "BMI: 0x400\n"
+ "REGULATORY: 0x800\n"
+ "TESTMODE: 0x1000\n"
+ "INFO-AS-DBG: 0x40000000\n"
+ "FW: 0x80000000\n"
+ "ALL: 0xFFFFFFFF\n";
+ char wbuf[sizeof(buf) + 60];
+ sz = snprintf(wbuf, sizeof(wbuf), "Current debug level: 0x%x\n\n%s",
+ ath10k_debug_mask, buf);
+ wbuf[sizeof(wbuf) - 1] = 0;
+
+ return simple_read_from_buffer(user_buf, count, ppos, wbuf, sz);
+}
+
+/* Set logging level.
+ */
+static ssize_t ath10k_write_debug_level(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath10k *ar = file->private_data;
+ int ret;
+ unsigned long mask;
+
+ ret = kstrtoul_from_user(user_buf, count, 0, &mask);
+ if (ret)
+ return ret;
+
+ ath10k_warn(ar, "Setting debug-mask to: 0x%lx old: 0x%x\n",
+ mask, ath10k_debug_mask);
+ ath10k_debug_mask = mask;
+ return count;
+}
+
+static const struct file_operations fops_debug_level = {
+ .read = ath10k_read_debug_level,
+ .write = ath10k_write_debug_level,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
static ssize_t ath10k_reg_value_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
@@ -2375,6 +2434,9 @@ int ath10k_debug_register(struct ath10k *ar)
debugfs_create_file("mem_value", S_IRUSR | S_IWUSR,
ar->debug.debugfs_phy, ar, &fops_mem_value);
+ debugfs_create_file("debug_level", S_IRUSR, ar->debug.debugfs_phy,
+ ar, &fops_debug_level);
+
debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
ar, &fops_chip_id);
--
2.4.3
--
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