1 /*
2 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
3 * Copyright (c) 2004-2005 Atheros Communications, Inc.
4 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
5 * Copyright (c) 2009 Bob Copeland <me@bobcopeland.com>
6 *
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer,
14 * without modification.
15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
16 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
17 * redistribution must be conditioned upon including a substantially
18 * similar Disclaimer requirement for further binary redistribution.
19 * 3. Neither the names of the above-listed copyright holders nor the names
20 * of any contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * Alternatively, this software may be distributed under the terms of the
24 * GNU General Public License ("GPL") version 2 as published by the Free
25 * Software Foundation.
26 *
27 * NO WARRANTY
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
31 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
33 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
36 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
38 * THE POSSIBILITY OF SUCH DAMAGES.
39 *
40 */
41
42 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
43
44 #include <linux/pci.h>
45 #include "ath5k.h"
46
47 #define ATH_SDEVICE(subv, subd) \
48 .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \
49 .subvendor = (subv), .subdevice = (subd)
50
51 #define ATH_LED(pin, polarity) .driver_data = (((pin) << 8) | (polarity))
52 #define ATH_PIN(data) ((data) >> 8)
53 #define ATH_POLARITY(data) ((data) & 0xff)
54
55 /* Devices we match on for LED config info (typically laptops) */
56 static const struct pci_device_id ath5k_led_devices[] = {
57 /* AR5211 */
58 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5211), ATH_LED(0, 0) },
59 /* HP Compaq nc6xx, nc4000, nx6000 */
60 { ATH_SDEVICE(PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID), ATH_LED(1, 1) },
61 /* Acer Aspire One A150 (maximlevitsky@gmail.com) */
62 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe008), ATH_LED(3, 0) },
63 /* Acer Aspire One AO531h AO751h (keng-yu.lin@canonical.com) */
64 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe00d), ATH_LED(3, 0) },
65 /* Acer Ferrari 5000 (russ.dill@gmail.com) */
66 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0422), ATH_LED(1, 1) },
67 /* E-machines E510 (tuliom@gmail.com) */
68 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0428), ATH_LED(3, 0) },
69 /* BenQ Joybook R55v (nowymarluk@wp.pl) */
70 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0100), ATH_LED(1, 0) },
71 /* Acer Extensa 5620z (nekoreeve@gmail.com) */
72 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0105), ATH_LED(3, 0) },
73 /* Fukato Datacask Jupiter 1014a (mrb74@gmx.at) */
74 { ATH_SDEVICE(PCI_VENDOR_ID_AZWAVE, 0x1026), ATH_LED(3, 0) },
75 /* IBM ThinkPad AR5BXB6 (legovini@spiro.fisica.unipd.it) */
76 { ATH_SDEVICE(PCI_VENDOR_ID_IBM, 0x058a), ATH_LED(1, 0) },
77 /* HP Compaq CQ60-206US (ddreggors@jumptv.com) */
78 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137a), ATH_LED(3, 1) },
79 /* HP Compaq C700 (nitrousnrg@gmail.com) */
80 { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 0) },
81 /* LiteOn AR5BXB63 (magooz@salug.it) */
82 { ATH_SDEVICE(PCI_VENDOR_ID_ATHEROS, 0x3067), ATH_LED(3, 0) },
83 /* IBM-specific AR5212 (all others) */
84 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5212_IBM), ATH_LED(0, 0) },
85 /* Dell Vostro A860 (shahar@shahar-or.co.il) */
86 { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0112), ATH_LED(3, 0) },
87 { }
88 };
89
ath5k_led_enable(struct ath5k_hw * ah)90 void ath5k_led_enable(struct ath5k_hw *ah)
91 {
92 if (IS_ENABLED(CONFIG_MAC80211_LEDS) &&
93 test_bit(ATH_STAT_LEDSOFT, ah->status)) {
94 ath5k_hw_set_gpio_output(ah, ah->led_pin);
95 ath5k_led_off(ah);
96 }
97 }
98
ath5k_led_on(struct ath5k_hw * ah)99 static void ath5k_led_on(struct ath5k_hw *ah)
100 {
101 if (!test_bit(ATH_STAT_LEDSOFT, ah->status))
102 return;
103 ath5k_hw_set_gpio(ah, ah->led_pin, ah->led_on);
104 }
105
ath5k_led_off(struct ath5k_hw * ah)106 void ath5k_led_off(struct ath5k_hw *ah)
107 {
108 if (!IS_ENABLED(CONFIG_MAC80211_LEDS) ||
109 !test_bit(ATH_STAT_LEDSOFT, ah->status))
110 return;
111 ath5k_hw_set_gpio(ah, ah->led_pin, !ah->led_on);
112 }
113
114 static void
ath5k_led_brightness_set(struct led_classdev * led_dev,enum led_brightness brightness)115 ath5k_led_brightness_set(struct led_classdev *led_dev,
116 enum led_brightness brightness)
117 {
118 struct ath5k_led *led = container_of(led_dev, struct ath5k_led,
119 led_dev);
120
121 if (brightness == LED_OFF)
122 ath5k_led_off(led->ah);
123 else
124 ath5k_led_on(led->ah);
125 }
126
127 static int
ath5k_register_led(struct ath5k_hw * ah,struct ath5k_led * led,const char * name,const char * trigger)128 ath5k_register_led(struct ath5k_hw *ah, struct ath5k_led *led,
129 const char *name, const char *trigger)
130 {
131 int err;
132
133 led->ah = ah;
134 strncpy(led->name, name, sizeof(led->name));
135 led->name[sizeof(led->name)-1] = 0;
136 led->led_dev.name = led->name;
137 led->led_dev.default_trigger = trigger;
138 led->led_dev.brightness_set = ath5k_led_brightness_set;
139
140 err = led_classdev_register(ah->dev, &led->led_dev);
141 if (err) {
142 ATH5K_WARN(ah, "could not register LED %s\n", name);
143 led->ah = NULL;
144 }
145 return err;
146 }
147
148 static void
ath5k_unregister_led(struct ath5k_led * led)149 ath5k_unregister_led(struct ath5k_led *led)
150 {
151 if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || !led->ah)
152 return;
153 led_classdev_unregister(&led->led_dev);
154 ath5k_led_off(led->ah);
155 led->ah = NULL;
156 }
157
ath5k_unregister_leds(struct ath5k_hw * ah)158 void ath5k_unregister_leds(struct ath5k_hw *ah)
159 {
160 ath5k_unregister_led(&ah->rx_led);
161 ath5k_unregister_led(&ah->tx_led);
162 }
163
ath5k_init_leds(struct ath5k_hw * ah)164 int ath5k_init_leds(struct ath5k_hw *ah)
165 {
166 int ret = 0;
167 struct ieee80211_hw *hw = ah->hw;
168 #ifndef CONFIG_ATH5K_AHB
169 struct pci_dev *pdev = ah->pdev;
170 #endif
171 char name[ATH5K_LED_MAX_NAME_LEN + 1];
172 const struct pci_device_id *match;
173
174 if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || !ah->pdev)
175 return 0;
176
177 #ifdef CONFIG_ATH5K_AHB
178 match = NULL;
179 #else
180 match = pci_match_id(&ath5k_led_devices[0], pdev);
181 #endif
182 if (match) {
183 __set_bit(ATH_STAT_LEDSOFT, ah->status);
184 ah->led_pin = ATH_PIN(match->driver_data);
185 ah->led_on = ATH_POLARITY(match->driver_data);
186 }
187
188 if (!test_bit(ATH_STAT_LEDSOFT, ah->status))
189 goto out;
190
191 ath5k_led_enable(ah);
192
193 snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy));
194 ret = ath5k_register_led(ah, &ah->rx_led, name,
195 ieee80211_get_rx_led_name(hw));
196 if (ret)
197 goto out;
198
199 snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy));
200 ret = ath5k_register_led(ah, &ah->tx_led, name,
201 ieee80211_get_tx_led_name(hw));
202 out:
203 return ret;
204 }
205
206