Commit c376c1fc authored by Tzu-En Huang's avatar Tzu-En Huang Committed by Kalle Valo
Browse files

rtw88: add h2c command in debugfs 



It's very useful to send H2C command for debug usage. Add an entry
for sending H2C command to firmware.

usage example:
echo 42,00,00,43,02,00,00,00 > /sys/kernel/debug/ieee80211/phyX/rtw88

Signed-off-by: default avatarTzu-En Huang <tehuang@realtek.com>
Signed-off-by: default avatarYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200717064937.27966-8-yhchuang@realtek.com
parent 752310ed

drivers/net/wireless/realtek/rtw88/debug.c

+30 −0
Original line number Diff line number Diff line
@@ -344,6 +344,31 @@ static ssize_t rtw_debugfs_set_write_reg(struct file *filp, 
	return count;

}



static ssize_t rtw_debugfs_set_h2c(struct file *filp,

				   const char __user *buffer,

				   size_t count, loff_t *loff)

{

	struct rtw_debugfs_priv *debugfs_priv = filp->private_data;

	struct rtw_dev *rtwdev = debugfs_priv->rtwdev;

	char tmp[32 + 1];

	u8 param[8];

	int num;



	rtw_debugfs_copy_from_user(tmp, sizeof(tmp), buffer, count, 3);



	num = sscanf(tmp, "%hhx,%hhx,%hhx,%hhx,%hhx,%hhx,%hhx,%hhx",

		     &param[0], &param[1], &param[2], &param[3],

		     &param[4], &param[5], &param[6], &param[7]);

	if (num != 8) {

		rtw_info(rtwdev, "invalid H2C command format for debug\n");

		return -EINVAL;

	}



	rtw_fw_h2c_cmd_dbg(rtwdev, param);



	return count;

}



static ssize_t rtw_debugfs_set_rf_write(struct file *filp,

					const char __user *buffer,

					size_t count, loff_t *loff)
@@ -808,6 +833,10 @@ static struct rtw_debugfs_priv rtw_debug_priv_write_reg = { 
	.cb_write = rtw_debugfs_set_write_reg,

};



static struct rtw_debugfs_priv rtw_debug_priv_h2c = {

	.cb_write = rtw_debugfs_set_h2c,

};



static struct rtw_debugfs_priv rtw_debug_priv_rf_write = {

	.cb_write = rtw_debugfs_set_rf_write,

};
@@ -877,6 +906,7 @@ void rtw_debugfs_init(struct rtw_dev *rtwdev) 
	rtw_debugfs_add_r(phy_info);

	rtw_debugfs_add_r(coex_info);

	rtw_debugfs_add_rw(coex_enable);

	rtw_debugfs_add_w(h2c);

	rtw_debugfs_add_r(mac_0);

	rtw_debugfs_add_r(mac_1);

	rtw_debugfs_add_r(mac_2);

drivers/net/wireless/realtek/rtw88/fw.c

+5 −0
Original line number Diff line number Diff line
@@ -253,6 +253,11 @@ static void rtw_fw_send_h2c_command(struct rtw_dev *rtwdev, 
	spin_unlock(&rtwdev->h2c.lock);

}



void rtw_fw_h2c_cmd_dbg(struct rtw_dev *rtwdev, u8 *h2c)

{

	rtw_fw_send_h2c_command(rtwdev, h2c);

}



static void rtw_fw_send_h2c_packet(struct rtw_dev *rtwdev, u8 *h2c_pkt)

{

	int ret;

drivers/net/wireless/realtek/rtw88/fw.h

+2 −0
Original line number Diff line number Diff line
@@ -563,4 +563,6 @@ void rtw_fw_set_nlo_info(struct rtw_dev *rtwdev, bool enable); 
void rtw_fw_update_pkt_probe_req(struct rtw_dev *rtwdev,

				 struct cfg80211_ssid *ssid);

void rtw_fw_channel_switch(struct rtw_dev *rtwdev, bool enable);

void rtw_fw_h2c_cmd_dbg(struct rtw_dev *rtwdev, u8 *h2c);



#endif