From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Date: Fri, 20 Jan 2023 15:54:18 +0000 (+0200)
Subject: wifi: rtl8xxxu: Add LED control code for RTL8192EU
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ae0a6df673c2ca9a0843127e4a6e72a1c80f1215;p=linux.git
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: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/8f7fd5d7-5baa-b38b-ad2a-977dcd9edd81@gmail.com
---
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
index 4a1c9bcafe319..5cfc00237f42d 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8192e.c
@@ -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),
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
index d510ce27b1b46..5849fa4e15669 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
@@ -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)