Commit 873b3811 authored by Bitterblue Smith's avatar Bitterblue Smith Committed by Kalle Valo
Browse files

wifi: rtl8xxxu: Add LED control code for RTL8188EU 



By default the LED will blink when there is some activity.

This was tested with a TP-Link TL-WN725N.

Signed-off-by: default avatarBitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: default avatarPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/34d62bf5-3595-0c77-2ca7-be78555f765d@gmail.com
parent 3be01622

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c

+25 −0
Original line number Diff line number Diff line
@@ -1350,6 +1350,30 @@ static s8 rtl8188e_cck_rssi(struct rtl8xxxu_priv *priv, u8 cck_agc_rpt) 
	return rx_pwr_all;

}



static int rtl8188eu_led_brightness_set(struct led_classdev *led_cdev,

					enum led_brightness brightness)

{

	struct rtl8xxxu_priv *priv = container_of(led_cdev,

						  struct rtl8xxxu_priv,

						  led_cdev);

	u8 ledcfg = rtl8xxxu_read8(priv, REG_LEDCFG2);



	if (brightness == LED_OFF) {

		ledcfg &= ~LEDCFG2_HW_LED_CONTROL;

		ledcfg |= LEDCFG2_SW_LED_CONTROL | LEDCFG2_SW_LED_DISABLE;

	} else if (brightness == LED_ON) {

		ledcfg &= ~(LEDCFG2_HW_LED_CONTROL | LEDCFG2_SW_LED_DISABLE);

		ledcfg |= LEDCFG2_SW_LED_CONTROL;

	} else if (brightness == RTL8XXXU_HW_LED_CONTROL) {

		ledcfg &= ~LEDCFG2_SW_LED_DISABLE;

		ledcfg |= LEDCFG2_HW_LED_CONTROL | LEDCFG2_HW_LED_ENABLE;

	}



	rtl8xxxu_write8(priv, REG_LEDCFG2, ledcfg);



	return 0;

}



static void rtl8188e_set_tx_rpt_timing(struct rtl8xxxu_ra_info *ra, u8 timing)

{

	u8 idx;
@@ -1851,6 +1875,7 @@ struct rtl8xxxu_fileops rtl8188eu_fops = { 
	.fill_txdesc = rtl8xxxu_fill_txdesc_v3,

	.set_crystal_cap = rtl8188f_set_crystal_cap,

	.cck_rssi = rtl8188e_cck_rssi,

	.led_classdev_brightness_set = rtl8188eu_led_brightness_set,

	.writeN_block_size = 128,

	.rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),

	.tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h

+4 −0
Original line number Diff line number Diff line
@@ -148,6 +148,10 @@ 
#define  LEDCFG0_DPDT_SELECT		BIT(23)

#define REG_LEDCFG1			0x004d

#define REG_LEDCFG2			0x004e

#define  LEDCFG2_HW_LED_CONTROL		BIT(1)

#define  LEDCFG2_HW_LED_ENABLE		BIT(5)

#define  LEDCFG2_SW_LED_DISABLE		BIT(3)

#define  LEDCFG2_SW_LED_CONTROL   	BIT(5)

#define  LEDCFG2_DPDT_SELECT		BIT(7)

#define REG_LEDCFG3			0x004f

#define REG_LEDCFG			REG_LEDCFG2