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

http://github.com/mirrors/linux
C | 151 lines | 107 code | 16 blank | 28 comment | 14 complexity | eb884b4fd1b64d5dedf7a53466e11b29 MD5 | raw file
  1/******************************************************************************
  2 *
  3 * Copyright(c) 2009-2012  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 _rtl92se_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 rtl92se_init_sw_leds(struct ieee80211_hw *hw)
 44{
 45	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 46	_rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led0), LED_PIN_LED0);
 47	_rtl92se_init_led(hw, &(pcipriv->ledctl.sw_led1), LED_PIN_LED1);
 48}
 49
 50void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled)
 51{
 52	u8 ledcfg;
 53	struct rtl_priv *rtlpriv = rtl_priv(hw);
 54
 55	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
 56		 LEDCFG, pled->ledpin);
 57
 58	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
 59
 60	switch (pled->ledpin) {
 61	case LED_PIN_GPIO0:
 62		break;
 63	case LED_PIN_LED0:
 64		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0xf0);
 65		break;
 66	case LED_PIN_LED1:
 67		rtl_write_byte(rtlpriv, LEDCFG, ledcfg & 0x0f);
 68		break;
 69	default:
 70		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 71			 "switch case not processed\n");
 72		break;
 73	}
 74	pled->ledon = true;
 75}
 76
 77void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled)
 78{
 79	struct rtl_priv *rtlpriv;
 80	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 81	u8 ledcfg;
 82
 83	rtlpriv = rtl_priv(hw);
 84	if (!rtlpriv || rtlpriv->max_fw_size)
 85		return;
 86	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n",
 87		 LEDCFG, pled->ledpin);
 88
 89	ledcfg = rtl_read_byte(rtlpriv, LEDCFG);
 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, LEDCFG, (ledcfg | BIT(1)));
 98		else
 99			rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
100		break;
101	case LED_PIN_LED1:
102		ledcfg &= 0x0f;
103		rtl_write_byte(rtlpriv, LEDCFG, (ledcfg | BIT(3)));
104		break;
105	default:
106		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
107			 "switch case not processed\n");
108		break;
109	}
110	pled->ledon = false;
111}
112
113static void _rtl92se_sw_led_control(struct ieee80211_hw *hw,
114				    enum led_ctl_mode ledaction)
115{
116	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
117	struct rtl_led *pLed0 = &(pcipriv->ledctl.sw_led0);
118	switch (ledaction) {
119	case LED_CTL_POWER_ON:
120	case LED_CTL_LINK:
121	case LED_CTL_NO_LINK:
122		rtl92se_sw_led_on(hw, pLed0);
123		break;
124	case LED_CTL_POWER_OFF:
125		rtl92se_sw_led_off(hw, pLed0);
126		break;
127	default:
128		break;
129	}
130}
131
132void rtl92se_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
133{
134	struct rtl_priv *rtlpriv = rtl_priv(hw);
135	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
136
137	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
138	    (ledaction == LED_CTL_TX ||
139	    ledaction == LED_CTL_RX ||
140	    ledaction == LED_CTL_SITE_SURVEY ||
141	    ledaction == LED_CTL_LINK ||
142	    ledaction == LED_CTL_NO_LINK ||
143	    ledaction == LED_CTL_START_TO_LINK ||
144	    ledaction == LED_CTL_POWER_ON)) {
145		return;
146	}
147	RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "ledaction %d\n", ledaction);
148
149	_rtl92se_sw_led_control(hw, ledaction);
150}
151