Commit ae0a6df6 authored by Bitterblue Smith's avatar Bitterblue Smith Committed by Kalle Valo
Browse files

wifi: rtl8xxxu: Add LED control code for RTL8192EU 



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

This was tested with a cheap "HT-WR813" from Aliexpress.

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/8f7fd5d7-5baa-b38b-ad2a-977dcd9edd81@gmail.com
parent 873b3811

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c

+24 −0
Original line number Diff line number Diff line
@@ -1764,6 +1764,29 @@ static s8 rtl8192e_cck_rssi(struct rtl8xxxu_priv *priv, u8 cck_agc_rpt) 
	return rx_pwr_all;

}



static int rtl8192eu_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_LEDCFG1);



	if (brightness == LED_OFF) {

		ledcfg &= ~LEDCFG1_HW_LED_CONTROL;

		ledcfg |= LEDCFG1_LED_DISABLE;

	} else if (brightness == LED_ON) {

		ledcfg &= ~(LEDCFG1_HW_LED_CONTROL | LEDCFG1_LED_DISABLE);

	} else if (brightness == RTL8XXXU_HW_LED_CONTROL) {

		ledcfg &= ~LEDCFG1_LED_DISABLE;

		ledcfg |= LEDCFG1_HW_LED_CONTROL;

	}



	rtl8xxxu_write8(priv, REG_LEDCFG1, ledcfg);



	return 0;

}



struct rtl8xxxu_fileops rtl8192eu_fops = {

	.identify_chip = rtl8192eu_identify_chip,

	.parse_efuse = rtl8192eu_parse_efuse,
@@ -1788,6 +1811,7 @@ struct rtl8xxxu_fileops rtl8192eu_fops = { 
	.fill_txdesc = rtl8xxxu_fill_txdesc_v2,

	.set_crystal_cap = rtl8723a_set_crystal_cap,

	.cck_rssi = rtl8192e_cck_rssi,

	.led_classdev_brightness_set = rtl8192eu_led_brightness_set,

	.writeN_block_size = 128,

	.tx_desc_size = sizeof(struct rtl8xxxu_txdesc40),

	.rx_desc_size = sizeof(struct rtl8xxxu_rxdesc24),

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

+2 −0
Original line number Diff line number Diff line
@@ -147,6 +147,8 @@ 
#define REG_LEDCFG0			0x004c

#define  LEDCFG0_DPDT_SELECT		BIT(23)

#define REG_LEDCFG1			0x004d

#define  LEDCFG1_HW_LED_CONTROL		BIT(1)

#define  LEDCFG1_LED_DISABLE		BIT(7)

#define REG_LEDCFG2			0x004e

#define  LEDCFG2_HW_LED_CONTROL		BIT(1)

#define  LEDCFG2_HW_LED_ENABLE		BIT(5)