1/******************************************************************************
  2 *
  3 * Copyright(c) 2009-2010  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 * You should have received a copy of the GNU General Public License along with
 15 * this program; if not, write to the Free Software Foundation, Inc.,
 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 17 *
 18 * The full GNU General Public License is included in this distribution in the
 19 * file called LICENSE.
 20 *
 21 * Contact Information:
 22 * wlanfae <wlanfae@realtek.com>
 23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
 24 * Hsinchu 300, Taiwan.
 25 *
 26 * Larry Finger <Larry.Finger@lwfinger.net>
 27 *
 28 *****************************************************************************/
 29
 30#include "../wifi.h"
 31#include "../pci.h"
 32#include "reg.h"
 33#include "led.h"
 34
 35static void _rtl92ce_init_led(struct ieee80211_hw *hw,
 36			      struct rtl_led *pled, enum rtl_led_pin ledpin)
 37{
 38	pled->hw = hw;
 39	pled->ledpin = ledpin;
 40	pled->ledon = false;
 41}
 42
 43void rtl92de_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
 44{
 45	u8 ledcfg;
 46	struct rtl_priv *rtlpriv = rtl_priv(hw);
 47
 48	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
 49		 ("LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin));
 50
 51	switch (pled->ledpin) {
 52	case LED_PIN_GPIO0:
 53		break;
 54	case LED_PIN_LED0:
 55		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 56
 57		if ((rtlpriv->efuse.eeprom_did == 0x8176) ||
 58			(rtlpriv->efuse.eeprom_did == 0x8193))
 59			/* BIT7 of REG_LEDCFG2 should be set to
 60			 * make sure we could emit the led2. */
 61			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) |
 62				       BIT(7) | BIT(5) | BIT(6));
 63		else
 64			rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0xf0) |
 65				       BIT(7) | BIT(5));
 66		break;
 67	case LED_PIN_LED1:
 68		ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG1);
 69
 70		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0x0f) | BIT(5));
 71		break;
 72	default:
 73		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 74			 ("switch case not process\n"));
 75		break;
 76	}
 77	pled->ledon = true;
 78}
 79
 80void rtl92de_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
 81{
 82	struct rtl_priv *rtlpriv = rtl_priv(hw);
 83	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 84	u8 ledcfg;
 85
 86	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD,
 87		 ("LedAddr:%X ledpin=%d\n", REG_LEDCFG2, pled->ledpin));
 88
 89	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 90
 91	switch (pled->ledpin) {
 92	case LED_PIN_GPIO0:
 93		break;
 94	case LED_PIN_LED0:
 95		ledcfg &= 0xf0;
 96		if (pcipriv->ledctl.led_opendrain)
 97			rtl_write_byte(rtlpriv, REG_LEDCFG2,
 98				       (ledcfg | BIT(1) | BIT(5) | BIT(6)));
 99		else
100			rtl_write_byte(rtlpriv, REG_LEDCFG2,
101				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
102		break;
103	case LED_PIN_LED1:
104		ledcfg &= 0x0f;
105		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3)));
106		break;
107	default:
108		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
109			 ("switch case not process\n"));
110		break;
111	}
112	pled->ledon = false;
113}
114
115void rtl92de_init_sw_leds(struct ieee80211_hw *hw)
116{
117	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
118	_rtl92ce_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
119	_rtl92ce_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
120}
121
122static void _rtl92ce_sw_led_control(struct ieee80211_hw *hw,
123				    enum led_ctl_mode ledaction)
124{
125	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
126	struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
127	switch (ledaction) {
128	case LED_CTL_POWER_ON:
129	case LED_CTL_LINK:
130	case LED_CTL_NO_LINK:
131		rtl92de_sw_led_on(hw, pLed0);
132		break;
133	case LED_CTL_POWER_OFF:
134		rtl92de_sw_led_off(hw, pLed0);
135		break;
136	default:
137		break;
138	}
139}
140
141void rtl92de_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
142{
143	struct rtl_priv *rtlpriv = rtl_priv(hw);
144	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
145
146	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
147	    (ledaction == LED_CTL_TX ||
148	     ledaction == LED_CTL_RX ||
149	     ledaction == LED_CTL_SITE_SURVEY ||
150	     ledaction == LED_CTL_LINK ||
151	     ledaction == LED_CTL_NO_LINK ||
152	     ledaction == LED_CTL_START_TO_LINK ||
153	     ledaction == LED_CTL_POWER_ON)) {
154		return;
155	}
156	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, ("ledaction %d,\n", ledaction));
157
158	_rtl92ce_sw_led_control(hw, ledaction);
159}