drivers/net/wireless/realtek/rtlwifi/rtl8192se/led.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/realtek/rtlwifi/rtl8192se/led.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/realtek/rtlwifi/rtl8192se/led.c
Extension
.c
Size
2446 bytes
Lines
107
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2009-2012  Realtek Corporation.*/

#include "../wifi.h"
#include "../pci.h"
#include "reg.h"
#include "led.h"

void rtl92se_sw_led_on(struct ieee80211_hw *hw, enum rtl_led_pin pin)
{
	u8 ledcfg;
	struct rtl_priv *rtlpriv = rtl_priv(hw);

	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
		LEDCFG, pin);

	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);

	switch (pin) {
	case LED_PIN_GPIO0:
		break;
	case LED_PIN_LED0:
		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
		break;
	case LED_PIN_LED1:
		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
		break;
	default:
		pr_err("switch case %#x not processed\n", pin);
		break;
	}
}

void rtl92se_sw_led_off(struct ieee80211_hw *hw, enum rtl_led_pin pin)
{
	struct rtl_priv *rtlpriv;
	u8 ledcfg;

	rtlpriv = rtl_priv(hw);
	if (!rtlpriv || rtlpriv->max_fw_size)
		return;
	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
		LEDCFG, pin);

	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);

	switch (pin) {
	case LED_PIN_GPIO0:
		break;
	case LED_PIN_LED0:
		ledcfg &= 0xf0;
		if (rtlpriv->ledctl.led_opendrain)
			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(1)));
		else
			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
		break;
	case LED_PIN_LED1:
		ledcfg &= 0x0f;
		rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
		break;
	default:
		pr_err("switch case %#x not processed\n", pin);
		break;
	}
}

static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
				    enum led_ctl_mode ledaction)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	enum rtl_led_pin pin0 = rtlpriv->ledctl.sw_led0;

	switch (ledaction) {
	case LED_CTL_POWER_ON:
	case LED_CTL_LINK:
	case LED_CTL_NO_LINK:
		rtl92se_sw_led_on(hw, pin0);
		break;
	case LED_CTL_POWER_OFF:
		rtl92se_sw_led_off(hw, pin0);
		break;
	default:
		break;
	}
}

void rtl92se_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));

Annotation

Implementation Notes