1/******************************************************************************
  2 *
  3 * Copyright(c) 2009-2014  Realtek Corporation.
  4 *
  5 * This program is free software; you can redistribute it and/or modify it
  6 * under the terms of version 2 of the GNU General Public License as
  7 * published by the Free Software Foundation.
  8 *
  9 * This program is distributed in the hope that it will be useful, but WITHOUT
 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 12 * more details.
 13 *
 14 * The full GNU General Public License is included in this distribution in the
 15 * file called LICENSE.
 16 *
 17 * Contact Information:
 18 * wlanfae <wlanfae@realtek.com>
 19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
 20 * Hsinchu 300, Taiwan.
 21 *
 22 * Larry Finger <Larry.Finger@lwfinger.net>
 23 *
 24 *****************************************************************************/
 25
 26#include "../wifi.h"
 27#include "../pci.h"
 28#include "reg.h"
 29#include "led.h"
 30
 31static void _rtl8723be_init_led(struct ieee80211_hw *hw,  struct rtl_led *pled,
 32				enum rtl_led_pin ledpin)
 33{
 34	pled->hw = hw;
 35	pled->ledpin = ledpin;
 36	pled->ledon = false;
 37}
 38
 39void rtl8723be_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
 40{
 41	u8 ledcfg;
 42	struct rtl_priv *rtlpriv = rtl_priv(hw);
 43
 44	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
 45		 "LedAddr:%X ledpin =%d\n", REG_LEDCFG2, pled->ledpin);
 46
 47	switch (pled->ledpin) {
 48	case LED_PIN_GPIO0:
 49		break;
 50	case LED_PIN_LED0:
 51		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 52		ledcfg &= ~BIT(6);
 53		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5));
 54		break;
 55	case LED_PIN_LED1:
 56		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 57		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg & 0x10);
 58		break;
 59	default:
 60		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 61			 "switch case not process\n");
 62		break;
 63	}
 64	pled->ledon = true;
 65}
 66
 67void rtl8723be_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
 68{
 69	struct rtl_priv *rtlpriv = rtl_priv(hw);
 70	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 71	u8 ledcfg;
 72
 73	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
 74		 "LedAddr:%X ledpin =%d\n", REG_LEDCFG2, pled->ledpin);
 75
 76	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 77
 78	switch (pled->ledpin) {
 79	case LED_PIN_GPIO0:
 80		break;
 81	case LED_PIN_LED0:
 82		ledcfg &= 0xf0;
 83		if (pcipriv->ledctl.led_opendrain) {
 84			ledcfg &= 0x90; /* Set to software control. */
 85			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg|BIT(3)));
 86			ledcfg = rtl_read_byte(rtlpriv, REG_MAC_PINMUX_CFG);
 87			ledcfg &= 0xFE;
 88			rtl_write_byte(rtlpriv, REG_MAC_PINMUX_CFG, ledcfg);
 89		} else {
 90			ledcfg &= ~BIT(6);
 91			rtl_write_byte(rtlpriv, REG_LEDCFG2,
 92				       (ledcfg | BIT(3) | BIT(5)));
 93		}
 94		break;
 95	case LED_PIN_LED1:
 96		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 97		ledcfg &= 0x10; /* Set to software control. */
 98		rtl_write_byte(rtlpriv, REG_LEDCFG1, ledcfg|BIT(3));
 99
100		break;
101	default:
102		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
103			 "switch case not processed\n");
104		break;
105	}
106	pled->ledon = false;
107}
108
109void rtl8723be_init_sw_leds(struct ieee80211_hw *hw)
110{
111	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
112	_rtl8723be_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
113	_rtl8723be_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
114}
115
116static void _rtl8723be_sw_led_control(struct ieee80211_hw *hw,
117				      enum led_ctl_mode ledaction)
118{
119	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
120	struct rtl_led *pled0 = &(pcipriv->ledctl.sw_led0);
121	switch (ledaction) {
122	case LED_CTL_POWER_ON:
123	case LED_CTL_LINK:
124	case LED_CTL_NO_LINK:
125		rtl8723be_sw_led_on(hw, pled0);
126		break;
127	case LED_CTL_POWER_OFF:
128		rtl8723be_sw_led_off(hw, pled0);
129		break;
130	default:
131		break;
132	}
133}
134
135void rtl8723be_led_control(struct ieee80211_hw *hw,
136			   enum led_ctl_mode ledaction)
137{
138	struct rtl_priv *rtlpriv = rtl_priv(hw);
139	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
140
141	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
142	    (ledaction == LED_CTL_TX ||
143	     ledaction == LED_CTL_RX ||
144	     ledaction == LED_CTL_SITE_SURVEY ||
145	     ledaction == LED_CTL_LINK ||
146	     ledaction == LED_CTL_NO_LINK ||
147	     ledaction == LED_CTL_START_TO_LINK ||
148	     ledaction == LED_CTL_POWER_ON)) {
149		return;
150	}
151	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d,\n", ledaction);
152	_rtl8723be_sw_led_control(hw, ledaction);
153}