cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

led.c (3055B)

      1// SPDX-License-Identifier: GPL-2.0
      2/* Copyright(c) 2009-2012  Realtek Corporation.*/
      3
      4#include "../wifi.h"
      5#include "../pci.h"
      6#include "reg.h"
      7#include "led.h"
      8
      9static void _rtl92ce_init_led(struct ieee80211_hw *hw,
     10			      struct rtl_led *pled, enum rtl_led_pin ledpin)
     11{
     12	pled->hw = hw;
     13	pled->ledpin = ledpin;
     14	pled->ledon = false;
     15}
     16
     17void rtl92ce_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
     18{
     19	u8 ledcfg;
     20	struct rtl_priv *rtlpriv = rtl_priv(hw);
     21
     22	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
     23		REG_LEDCFG2, pled->ledpin);
     24
     25	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
     26
     27	switch (pled->ledpin) {
     28	case LED_PIN_GPIO0:
     29		break;
     30	case LED_PIN_LED0:
     31		rtl_write_byte(rtlpriv,
     32			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
     33		break;
     34	case LED_PIN_LED1:
     35		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0x0f) | BIT(5));
     36		break;
     37	default:
     38		pr_err("switch case %#x not processed\n",
     39		       pled->ledpin);
     40		break;
     41	}
     42	pled->ledon = true;
     43}
     44
     45void rtl92ce_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
     46{
     47	struct rtl_priv *rtlpriv = rtl_priv(hw);
     48	u8 ledcfg;
     49
     50	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
     51		REG_LEDCFG2, pled->ledpin);
     52
     53	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
     54
     55	switch (pled->ledpin) {
     56	case LED_PIN_GPIO0:
     57		break;
     58	case LED_PIN_LED0:
     59		ledcfg &= 0xf0;
     60		if (rtlpriv->ledctl.led_opendrain)
     61			rtl_write_byte(rtlpriv, REG_LEDCFG2,
     62				       (ledcfg | BIT(1) | BIT(5) | BIT(6)));
     63		else
     64			rtl_write_byte(rtlpriv, REG_LEDCFG2,
     65				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
     66		break;
     67	case LED_PIN_LED1:
     68		ledcfg &= 0x0f;
     69		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3)));
     70		break;
     71	default:
     72		pr_info("switch case %#x not processed\n", pled->ledpin);
     73		break;
     74	}
     75	pled->ledon = false;
     76}
     77
     78void rtl92ce_init_sw_leds(struct ieee80211_hw *hw)
     79{
     80	struct rtl_priv *rtlpriv = rtl_priv(hw);
     81
     82	_rtl92ce_init_led(hw, &rtlpriv->ledctl.sw_led0, LED_PIN_LED0);
     83	_rtl92ce_init_led(hw, &rtlpriv->ledctl.sw_led1, LED_PIN_LED1);
     84}
     85
     86static void _rtl92ce_sw_led_control(struct ieee80211_hw *hw,
     87				    enum led_ctl_mode ledaction)
     88{
     89	struct rtl_priv *rtlpriv = rtl_priv(hw);
     90	struct rtl_led *pled0 = &rtlpriv->ledctl.sw_led0;
     91
     92	switch (ledaction) {
     93	case LED_CTL_POWER_ON:
     94	case LED_CTL_LINK:
     95	case LED_CTL_NO_LINK:
     96		rtl92ce_sw_led_on(hw, pled0);
     97		break;
     98	case LED_CTL_POWER_OFF:
     99		rtl92ce_sw_led_off(hw, pled0);
    100		break;
    101	default:
    102		break;
    103	}
    104}
    105
    106void rtl92ce_led_control(struct ieee80211_hw *hw,
    107			enum led_ctl_mode ledaction)
    108{
    109	struct rtl_priv *rtlpriv = rtl_priv(hw);
    110	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
    111
    112	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
    113	    (ledaction == LED_CTL_TX ||
    114	     ledaction == LED_CTL_RX ||
    115	     ledaction == LED_CTL_SITE_SURVEY ||
    116	     ledaction == LED_CTL_LINK ||
    117	     ledaction == LED_CTL_NO_LINK ||
    118	     ledaction == LED_CTL_START_TO_LINK ||
    119	     ledaction == LED_CTL_POWER_ON)) {
    120		return;
    121	}
    122	rtl_dbg(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n",
    123		ledaction);
    124	_rtl92ce_sw_led_control(hw, ledaction);
    125}