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/drivers/net/wireless/rtlwifi/rtl8192cu/led.c

http://github.com/mirrors/linux
C | 141 lines | 103 code | 12 blank | 26 comment | 11 complexity | ad081c757d7d6b9361fafa05471a87bc MD5 | raw file
  1/******************************************************************************
  2 *
  3 * Copyright(c) 2009-2012  Realtek Corporation. All rights reserved.
  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 *****************************************************************************/
 27
 28#include "../wifi.h"
 29#include "../usb.h"
 30#include "reg.h"
 31#include "led.h"
 32
 33static void _rtl92cu_init_led(struct ieee80211_hw *hw,
 34			      struct rtl_led *pled, enum rtl_led_pin ledpin)
 35{
 36	pled->hw = hw;
 37	pled->ledpin = ledpin;
 38	pled->ledon = false;
 39}
 40
 41static void _rtl92cu_deInit_led(struct rtl_led *pled)
 42{
 43}
 44
 45void rtl92cu_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
 46{
 47	u8 ledcfg;
 48	struct rtl_priv *rtlpriv = rtl_priv(hw);
 49
 50	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
 51		 REG_LEDCFG2, pled->ledpin);
 52	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 53	switch (pled->ledpin) {
 54	case LED_PIN_GPIO0:
 55		break;
 56	case LED_PIN_LED0:
 57		rtl_write_byte(rtlpriv,
 58			       REG_LEDCFG2, (ledcfg & 0xf0) | BIT(5) | BIT(6));
 59		break;
 60	case LED_PIN_LED1:
 61		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg & 0x0f) | BIT(5));
 62		break;
 63	default:
 64		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 65			 "switch case not processed\n");
 66		break;
 67	}
 68	pled->ledon = true;
 69}
 70
 71void rtl92cu_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
 72{
 73	struct rtl_priv *rtlpriv = rtl_priv(hw);
 74	struct rtl_usb_priv *usbpriv = rtl_usbpriv(hw);
 75	u8 ledcfg;
 76
 77	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
 78		 REG_LEDCFG2, pled->ledpin);
 79	ledcfg = rtl_read_byte(rtlpriv, REG_LEDCFG2);
 80	switch (pled->ledpin) {
 81	case LED_PIN_GPIO0:
 82		break;
 83	case LED_PIN_LED0:
 84		ledcfg &= 0xf0;
 85		if (usbpriv->ledctl.led_opendrain)
 86			rtl_write_byte(rtlpriv, REG_LEDCFG2,
 87				       (ledcfg | BIT(1) | BIT(5) | BIT(6)));
 88		else
 89			rtl_write_byte(rtlpriv, REG_LEDCFG2,
 90				       (ledcfg | BIT(3) | BIT(5) | BIT(6)));
 91		break;
 92	case LED_PIN_LED1:
 93		ledcfg &= 0x0f;
 94		rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(3)));
 95		break;
 96	default:
 97		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 98			 "switch case not processed\n");
 99		break;
100	}
101	pled->ledon = false;
102}
103
104void rtl92cu_init_sw_leds(struct ieee80211_hw *hw)
105{
106	struct rtl_usb_priv *usbpriv = rtl_usbpriv(hw);
107	_rtl92cu_init_led(hw, &(usbpriv->ledctl.sw_led0), LED_PIN_LED0);
108	_rtl92cu_init_led(hw, &(usbpriv->ledctl.sw_led1), LED_PIN_LED1);
109}
110
111void rtl92cu_deinit_sw_leds(struct ieee80211_hw *hw)
112{
113	struct rtl_usb_priv *usbpriv = rtl_usbpriv(hw);
114	_rtl92cu_deInit_led(&(usbpriv->ledctl.sw_led0));
115	_rtl92cu_deInit_led(&(usbpriv->ledctl.sw_led1));
116}
117
118static void _rtl92cu_sw_led_control(struct ieee80211_hw *hw,
119				    enum led_ctl_mode ledaction)
120{
121}
122
123void rtl92cu_led_control(struct ieee80211_hw *hw,
124			enum led_ctl_mode ledaction)
125{
126	struct rtl_priv *rtlpriv = rtl_priv(hw);
127	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
128
129	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
130	    (ledaction == LED_CTL_TX ||
131	     ledaction == LED_CTL_RX ||
132	     ledaction == LED_CTL_SITE_SURVEY ||
133	     ledaction == LED_CTL_LINK ||
134	     ledaction == LED_CTL_NO_LINK ||
135	     ledaction == LED_CTL_START_TO_LINK ||
136	     ledaction == LED_CTL_POWER_ON)) {
137		return;
138	}
139	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
140	_rtl92cu_sw_led_control(hw, ledaction);
141}