| /* |
| |
| Broadcom B43 wireless driver |
| |
| Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, |
| Stefano Brivio <st3@riseup.net> |
| Michael Buesch <mb@bu3sch.de> |
| Danny van Dyk <kugelfang@gentoo.org> |
| Andreas Jaggi <andreas.jaggi@waterwave.ch> |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; see the file COPYING. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, |
| Boston, MA 02110-1301, USA. |
| |
| */ |
| |
| #include "b43.h" |
| #include "leds.h" |
| #include "main.h" |
| |
| static void b43_led_changestate(struct b43_led *led) |
| { |
| struct b43_wldev *dev = led->dev; |
| const int index = led->index; |
| u16 ledctl; |
| |
| B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS)); |
| B43_WARN_ON(!led->blink_interval); |
| ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL); |
| ledctl ^= (1 << index); |
| b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl); |
| } |
| |
| static void b43_led_blink(unsigned long d) |
| { |
| struct b43_led *led = (struct b43_led *)d; |
| struct b43_wldev *dev = led->dev; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&dev->wl->leds_lock, flags); |
| if (led->blink_interval) { |
| b43_led_changestate(led); |
| mod_timer(&led->blink_timer, jiffies + led->blink_interval); |
| } |
| spin_unlock_irqrestore(&dev->wl->leds_lock, flags); |
| } |
| |
| static void b43_led_blink_start(struct b43_led *led, unsigned long interval) |
| { |
| if (led->blink_interval) |
| return; |
| led->blink_interval = interval; |
| b43_led_changestate(led); |
| led->blink_timer.expires = jiffies + interval; |
| add_timer(&led->blink_timer); |
| } |
| |
| static void b43_led_blink_stop(struct b43_led *led, int sync) |
| { |
| struct b43_wldev *dev = led->dev; |
| const int index = led->index; |
| u16 ledctl; |
| |
| if (!led->blink_interval) |
| return; |
| if (unlikely(sync)) |
| del_timer_sync(&led->blink_timer); |
| else |
| del_timer(&led->blink_timer); |
| led->blink_interval = 0; |
| |
| /* Make sure the LED is turned off. */ |
| B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS)); |
| ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL); |
| if (led->activelow) |
| ledctl |= (1 << index); |
| else |
| ledctl &= ~(1 << index); |
| b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl); |
| } |
| |
| static void b43_led_init_hardcoded(struct b43_wldev *dev, |
| struct b43_led *led, int led_index) |
| { |
| struct ssb_bus *bus = dev->dev->bus; |
| |
| /* This function is called, if the behaviour (and activelow) |
| * information for a LED is missing in the SPROM. |
| * We hardcode the behaviour values for various devices here. |
| * Note that the B43_LED_TEST_XXX behaviour values can |
| * be used to figure out which led is mapped to which index. |
| */ |
| |
| switch (led_index) { |
| case 0: |
| led->behaviour = B43_LED_ACTIVITY; |
| led->activelow = 1; |
| if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ) |
| led->behaviour = B43_LED_RADIO_ALL; |
| break; |
| case 1: |
| led->behaviour = B43_LED_RADIO_B; |
| if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK) |
| led->behaviour = B43_LED_ASSOC; |
| break; |
| case 2: |
| led->behaviour = B43_LED_RADIO_A; |
| break; |
| case 3: |
| led->behaviour = B43_LED_OFF; |
| break; |
| default: |
| B43_WARN_ON(1); |
| } |
| } |
| |
| int b43_leds_init(struct b43_wldev *dev) |
| { |
| struct b43_led *led; |
| u8 sprom[4]; |
| int i; |
| |
| sprom[0] = dev->dev->bus->sprom.r1.gpio0; |
| sprom[1] = dev->dev->bus->sprom.r1.gpio1; |
| sprom[2] = dev->dev->bus->sprom.r1.gpio2; |
| sprom[3] = dev->dev->bus->sprom.r1.gpio3; |
| |
| for (i = 0; i < B43_NR_LEDS; i++) { |
| led = &(dev->leds[i]); |
| led->index = i; |
| led->dev = dev; |
| setup_timer(&led->blink_timer, |
| b43_led_blink, (unsigned long)led); |
| |
| if (sprom[i] == 0xFF) { |
| b43_led_init_hardcoded(dev, led, i); |
| } else { |
| led->behaviour = sprom[i] & B43_LED_BEHAVIOUR; |
| led->activelow = !!(sprom[i] & B43_LED_ACTIVELOW); |
| } |
| } |
| |
| return 0; |
| } |
| |
| void b43_leds_exit(struct b43_wldev *dev) |
| { |
| struct b43_led *led; |
| int i; |
| |
| for (i = 0; i < B43_NR_LEDS; i++) { |
| led = &(dev->leds[i]); |
| b43_led_blink_stop(led, 1); |
| } |
| b43_leds_switch_all(dev, 0); |
| } |
| |
| void b43_leds_update(struct b43_wldev *dev, int activity) |
| { |
| struct b43_led *led; |
| struct b43_phy *phy = &dev->phy; |
| const int transferring = |
| (jiffies - dev->stats.last_tx) < B43_LED_XFER_THRES; |
| int i, turn_on; |
| unsigned long interval = 0; |
| u16 ledctl; |
| unsigned long flags; |
| bool radio_enabled = (phy->radio_on && dev->radio_hw_enable); |
| |
| spin_lock_irqsave(&dev->wl->leds_lock, flags); |
| ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL); |
| for (i = 0; i < B43_NR_LEDS; i++) { |
| led = &(dev->leds[i]); |
| |
| turn_on = 0; |
| switch (led->behaviour) { |
| case B43_LED_INACTIVE: |
| continue; |
| case B43_LED_OFF: |
| break; |
| case B43_LED_ON: |
| turn_on = 1; |
| break; |
| case B43_LED_ACTIVITY: |
| turn_on = activity; |
| break; |
| case B43_LED_RADIO_ALL: |
| turn_on = radio_enabled; |
| break; |
| case B43_LED_RADIO_A: |
| turn_on = (radio_enabled && phy->type == B43_PHYTYPE_A); |
| break; |
| case B43_LED_RADIO_B: |
| turn_on = (radio_enabled && |
| (phy->type == B43_PHYTYPE_B |
| || phy->type == B43_PHYTYPE_G)); |
| break; |
| case B43_LED_MODE_BG: |
| if (phy->type == B43_PHYTYPE_G |
| && radio_enabled) |
| turn_on = 1; |
| break; |
| case B43_LED_TRANSFER: |
| if (transferring) |
| b43_led_blink_start(led, B43_LEDBLINK_MEDIUM); |
| else |
| b43_led_blink_stop(led, 0); |
| continue; |
| case B43_LED_APTRANSFER: |
| if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) { |
| if (transferring) { |
| interval = B43_LEDBLINK_FAST; |
| turn_on = 1; |
| } |
| } else { |
| turn_on = 1; |
| if (0 /*TODO: not assoc */ ) |
| interval = B43_LEDBLINK_SLOW; |
| else if (transferring) |
| interval = B43_LEDBLINK_FAST; |
| else |
| turn_on = 0; |
| } |
| if (turn_on) |
| b43_led_blink_start(led, interval); |
| else |
| b43_led_blink_stop(led, 0); |
| continue; |
| case B43_LED_WEIRD: |
| //TODO |
| break; |
| case B43_LED_ASSOC: |
| if (1 /*dev->softmac->associated */ ) |
| turn_on = 1; |
| break; |
| #ifdef CONFIG_B43_DEBUG |
| case B43_LED_TEST_BLINKSLOW: |
| b43_led_blink_start(led, B43_LEDBLINK_SLOW); |
| continue; |
| case B43_LED_TEST_BLINKMEDIUM: |
| b43_led_blink_start(led, B43_LEDBLINK_MEDIUM); |
| continue; |
| case B43_LED_TEST_BLINKFAST: |
| b43_led_blink_start(led, B43_LEDBLINK_FAST); |
| continue; |
| #endif /* CONFIG_B43_DEBUG */ |
| default: |
| B43_WARN_ON(1); |
| }; |
| |
| if (led->activelow) |
| turn_on = !turn_on; |
| if (turn_on) |
| ledctl |= (1 << i); |
| else |
| ledctl &= ~(1 << i); |
| } |
| b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl); |
| spin_unlock_irqrestore(&dev->wl->leds_lock, flags); |
| } |
| |
| void b43_leds_switch_all(struct b43_wldev *dev, int on) |
| { |
| struct b43_led *led; |
| u16 ledctl; |
| int i; |
| int bit_on; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&dev->wl->leds_lock, flags); |
| ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL); |
| for (i = 0; i < B43_NR_LEDS; i++) { |
| led = &(dev->leds[i]); |
| if (led->behaviour == B43_LED_INACTIVE) |
| continue; |
| if (on) |
| bit_on = led->activelow ? 0 : 1; |
| else |
| bit_on = led->activelow ? 1 : 0; |
| if (bit_on) |
| ledctl |= (1 << i); |
| else |
| ledctl &= ~(1 << i); |
| } |
| b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl); |
| spin_unlock_irqrestore(&dev->wl->leds_lock, flags); |
| } |