rtlwifi: Improve debugging by using debugfs
Use debugfs to dump register and btcoex status, and also write registers
and h2c.
We create topdir in /sys/kernel/debug/rtlwifi/, and use the MAC address
as subdirectory with several entries to dump mac_reg, bb_reg, rf_reg etc.
An example is
/sys/kernel/debug/rtlwifi/00-11-22-33-44-55-66/mac_0
This change permits examination of device registers in a dynamic manner,
a feature not available with the current debug mechanism.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/realtek/rtlwifi/wifi.h b/drivers/net/wireless/realtek/rtlwifi/wifi.h
index e2b1479..0b1c543 100644
--- a/drivers/net/wireless/realtek/rtlwifi/wifi.h
+++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h
@@ -2381,6 +2381,12 @@ struct rtl_works {
struct work_struct fill_h2c_cmd;
};
+struct rtl_debug {
+ /* add for debug */
+ struct dentry *debugfs_dir;
+ char debugfs_name[20];
+};
+
#define MIMO_PS_STATIC 0
#define MIMO_PS_DYNAMIC 1
#define MIMO_PS_NOLIMIT 3
@@ -2575,6 +2581,8 @@ struct rtl_btc_ops {
bool (*btc_is_bt_disabled) (struct rtl_priv *rtlpriv);
void (*btc_special_packet_notify)(struct rtl_priv *rtlpriv,
u8 pkt_type);
+ void (*btc_display_bt_coex_info)(struct rtl_priv *rtlpriv,
+ struct seq_file *m);
void (*btc_record_pwr_mode)(struct rtl_priv *rtlpriv, u8 *buf, u8 len);
u8 (*btc_get_lps_val)(struct rtl_priv *rtlpriv);
u8 (*btc_get_rpwm_val)(struct rtl_priv *rtlpriv);
@@ -2649,6 +2657,7 @@ struct rtl_priv {
/* c2hcmd list for kthread level access */
struct list_head c2hcmd_list;
+ struct rtl_debug dbg;
int max_fw_size;
/*