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>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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.
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.
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.
42 #include <linux/pci.h>
46 #define ATH_SDEVICE(subv,subd) \
47 .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \
48 .subvendor = (subv), .subdevice = (subd)
50 #define ATH_LED(pin,polarity) .driver_data = (((pin) << 8) | (polarity))
51 #define ATH_PIN(data) ((data) >> 8)
52 #define ATH_POLARITY(data) ((data) & 0xff)
54 /* Devices we match on for LED config info (typically laptops) */
55 static const struct pci_device_id ath5k_led_devices[] = {
56 /* IBM-specific AR5212 */
57 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5212_IBM), ATH_LED(0, 0) },
59 { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5211), ATH_LED(0, 0) },
60 /* HP Compaq nc6xx, nc4000, nx6000 */
61 { ATH_SDEVICE(PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID), ATH_LED(1, 1) },
62 /* Acer Aspire One A150 (maximlevitsky@gmail.com) */
63 { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe008), ATH_LED(3, 0) },
64 /* Acer Ferrari 5000 (russ.dill@gmail.com) */
65 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0422), ATH_LED(1, 1) },
66 /* E-machines E510 (tuliom@gmail.com) */
67 { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0428), ATH_LED(3, 0) },
71 void ath5k_led_enable(struct ath5k_softc *sc)
73 if (test_bit(ATH_STAT_LEDSOFT, sc->status)) {
74 ath5k_hw_set_gpio_output(sc->ah, sc->led_pin);
79 void ath5k_led_on(struct ath5k_softc *sc)
81 if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
83 ath5k_hw_set_gpio(sc->ah, sc->led_pin, sc->led_on);
86 void ath5k_led_off(struct ath5k_softc *sc)
88 if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
90 ath5k_hw_set_gpio(sc->ah, sc->led_pin, !sc->led_on);
94 ath5k_led_brightness_set(struct led_classdev *led_dev,
95 enum led_brightness brightness)
97 struct ath5k_led *led = container_of(led_dev, struct ath5k_led,
100 if (brightness == LED_OFF)
101 ath5k_led_off(led->sc);
103 ath5k_led_on(led->sc);
107 ath5k_register_led(struct ath5k_softc *sc, struct ath5k_led *led,
108 const char *name, char *trigger)
113 strncpy(led->name, name, sizeof(led->name));
114 led->led_dev.name = led->name;
115 led->led_dev.default_trigger = trigger;
116 led->led_dev.brightness_set = ath5k_led_brightness_set;
118 err = led_classdev_register(&sc->pdev->dev, &led->led_dev);
120 ATH5K_WARN(sc, "could not register LED %s\n", name);
127 ath5k_unregister_led(struct ath5k_led *led)
131 led_classdev_unregister(&led->led_dev);
132 ath5k_led_off(led->sc);
136 void ath5k_unregister_leds(struct ath5k_softc *sc)
138 ath5k_unregister_led(&sc->rx_led);
139 ath5k_unregister_led(&sc->tx_led);
142 int ath5k_init_leds(struct ath5k_softc *sc)
145 struct ieee80211_hw *hw = sc->hw;
146 struct pci_dev *pdev = sc->pdev;
147 char name[ATH5K_LED_MAX_NAME_LEN + 1];
148 const struct pci_device_id *match;
150 match = pci_match_id(&ath5k_led_devices[0], pdev);
152 __set_bit(ATH_STAT_LEDSOFT, sc->status);
153 sc->led_pin = ATH_PIN(match->driver_data);
154 sc->led_on = ATH_POLARITY(match->driver_data);
157 if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
160 ath5k_led_enable(sc);
162 snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy));
163 ret = ath5k_register_led(sc, &sc->rx_led, name,
164 ieee80211_get_rx_led_name(hw));
168 snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy));
169 ret = ath5k_register_led(sc, &sc->tx_led, name,
170 ieee80211_get_tx_led_name(hw));