diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/led.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/led.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/led.c b/drivers/net/wireless/ath/ath5k/led.c new file mode 100644 index 000000000..33e9928af --- /dev/null +++ b/drivers/net/wireless/ath/ath5k/led.c @@ -0,0 +1,205 @@ +/* + * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting + * Copyright (c) 2004-2005 Atheros Communications, Inc. + * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> + * Copyright (c) 2009 Bob Copeland <me@bobcopeland.com> + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any + * redistribution must be conditioned upon including a substantially + * similar Disclaimer requirement for further binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, + * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGES. + * + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/pci.h> +#include "ath5k.h" + +#define ATH_SDEVICE(subv, subd) \ + .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \ + .subvendor = (subv), .subdevice = (subd) + +#define ATH_LED(pin, polarity) .driver_data = (((pin) << 8) | (polarity)) +#define ATH_PIN(data) ((data) >> 8) +#define ATH_POLARITY(data) ((data) & 0xff) + +/* Devices we match on for LED config info (typically laptops) */ +static const struct pci_device_id ath5k_led_devices[] = { + /* AR5211 */ + { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5211), ATH_LED(0, 0) }, + /* HP Compaq nc6xx, nc4000, nx6000 */ + { ATH_SDEVICE(PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID), ATH_LED(1, 1) }, + /* Acer Aspire One A150 (maximlevitsky@gmail.com) */ + { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe008), ATH_LED(3, 0) }, + /* Acer Aspire One AO531h AO751h (keng-yu.lin@canonical.com) */ + { ATH_SDEVICE(PCI_VENDOR_ID_FOXCONN, 0xe00d), ATH_LED(3, 0) }, + /* Acer Ferrari 5000 (russ.dill@gmail.com) */ + { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0422), ATH_LED(1, 1) }, + /* E-machines E510 (tuliom@gmail.com) */ + { ATH_SDEVICE(PCI_VENDOR_ID_AMBIT, 0x0428), ATH_LED(3, 0) }, + /* BenQ Joybook R55v (nowymarluk@wp.pl) */ + { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0100), ATH_LED(1, 0) }, + /* Acer Extensa 5620z (nekoreeve@gmail.com) */ + { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0105), ATH_LED(3, 0) }, + /* Fukato Datacask Jupiter 1014a (mrb74@gmx.at) */ + { ATH_SDEVICE(PCI_VENDOR_ID_AZWAVE, 0x1026), ATH_LED(3, 0) }, + /* IBM ThinkPad AR5BXB6 (legovini@spiro.fisica.unipd.it) */ + { ATH_SDEVICE(PCI_VENDOR_ID_IBM, 0x058a), ATH_LED(1, 0) }, + /* HP Compaq CQ60-206US (ddreggors@jumptv.com) */ + { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137a), ATH_LED(3, 1) }, + /* HP Compaq C700 (nitrousnrg@gmail.com) */ + { ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 0) }, + /* LiteOn AR5BXB63 (magooz@salug.it) */ + { ATH_SDEVICE(PCI_VENDOR_ID_ATHEROS, 0x3067), ATH_LED(3, 0) }, + /* IBM-specific AR5212 (all others) */ + { PCI_VDEVICE(ATHEROS, PCI_DEVICE_ID_ATHEROS_AR5212_IBM), ATH_LED(0, 0) }, + /* Dell Vostro A860 (shahar@shahar-or.co.il) */ + { ATH_SDEVICE(PCI_VENDOR_ID_QMI, 0x0112), ATH_LED(3, 0) }, + { } +}; + +void ath5k_led_enable(struct ath5k_hw *ah) +{ + if (IS_ENABLED(CONFIG_MAC80211_LEDS) && + test_bit(ATH_STAT_LEDSOFT, ah->status)) { + ath5k_hw_set_gpio_output(ah, ah->led_pin); + ath5k_led_off(ah); + } +} + +static void ath5k_led_on(struct ath5k_hw *ah) +{ + if (!test_bit(ATH_STAT_LEDSOFT, ah->status)) + return; + ath5k_hw_set_gpio(ah, ah->led_pin, ah->led_on); +} + +void ath5k_led_off(struct ath5k_hw *ah) +{ + if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || + !test_bit(ATH_STAT_LEDSOFT, ah->status)) + return; + ath5k_hw_set_gpio(ah, ah->led_pin, !ah->led_on); +} + +static void +ath5k_led_brightness_set(struct led_classdev *led_dev, + enum led_brightness brightness) +{ + struct ath5k_led *led = container_of(led_dev, struct ath5k_led, + led_dev); + + if (brightness == LED_OFF) + ath5k_led_off(led->ah); + else + ath5k_led_on(led->ah); +} + +static int +ath5k_register_led(struct ath5k_hw *ah, struct ath5k_led *led, + const char *name, const char *trigger) +{ + int err; + + led->ah = ah; + strncpy(led->name, name, sizeof(led->name)); + led->name[sizeof(led->name)-1] = 0; + led->led_dev.name = led->name; + led->led_dev.default_trigger = trigger; + led->led_dev.brightness_set = ath5k_led_brightness_set; + + err = led_classdev_register(ah->dev, &led->led_dev); + if (err) { + ATH5K_WARN(ah, "could not register LED %s\n", name); + led->ah = NULL; + } + return err; +} + +static void +ath5k_unregister_led(struct ath5k_led *led) +{ + if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || !led->ah) + return; + led_classdev_unregister(&led->led_dev); + ath5k_led_off(led->ah); + led->ah = NULL; +} + +void ath5k_unregister_leds(struct ath5k_hw *ah) +{ + ath5k_unregister_led(&ah->rx_led); + ath5k_unregister_led(&ah->tx_led); +} + +int ath5k_init_leds(struct ath5k_hw *ah) +{ + int ret = 0; + struct ieee80211_hw *hw = ah->hw; +#ifndef CONFIG_ATH5K_AHB + struct pci_dev *pdev = ah->pdev; +#endif + char name[ATH5K_LED_MAX_NAME_LEN + 1]; + const struct pci_device_id *match; + + if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || !ah->pdev) + return 0; + +#ifdef CONFIG_ATH5K_AHB + match = NULL; +#else + match = pci_match_id(&ath5k_led_devices[0], pdev); +#endif + if (match) { + __set_bit(ATH_STAT_LEDSOFT, ah->status); + ah->led_pin = ATH_PIN(match->driver_data); + ah->led_on = ATH_POLARITY(match->driver_data); + } + + if (!test_bit(ATH_STAT_LEDSOFT, ah->status)) + goto out; + + ath5k_led_enable(ah); + + snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy)); + ret = ath5k_register_led(ah, &ah->rx_led, name, + ieee80211_get_rx_led_name(hw)); + if (ret) + goto out; + + snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy)); + ret = ath5k_register_led(ah, &ah->tx_led, name, + ieee80211_get_tx_led_name(hw)); +out: + return ret; +} + |