262 lines
6.5 KiB
C
262 lines
6.5 KiB
C
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/*
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Broadcom BCM43xx wireless driver
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Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
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Stefano Brivio <st3@riseup.net>
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Michael Buesch <mbuesch@freenet.de>
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Danny van Dyk <kugelfang@gentoo.org>
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Andreas Jaggi <andreas.jaggi@waterwave.ch>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "bcm43xx_leds.h"
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#include "bcm43xx.h"
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#include <asm/bitops.h>
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static void bcm43xx_led_changestate(struct bcm43xx_led *led)
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{
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struct bcm43xx_private *bcm = led->bcm;
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const int index = bcm43xx_led_index(led);
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u16 ledctl;
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assert(index >= 0 && index < BCM43xx_NR_LEDS);
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assert(led->blink_interval);
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ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL);
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__change_bit(index, (unsigned long *)(&ledctl));
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bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl);
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}
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static void bcm43xx_led_blink(unsigned long d)
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{
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struct bcm43xx_led *led = (struct bcm43xx_led *)d;
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struct bcm43xx_private *bcm = led->bcm;
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unsigned long flags;
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spin_lock_irqsave(&bcm->lock, flags);
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if (led->blink_interval) {
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bcm43xx_led_changestate(led);
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mod_timer(&led->blink_timer, jiffies + led->blink_interval);
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}
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spin_unlock_irqrestore(&bcm->lock, flags);
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}
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static void bcm43xx_led_blink_start(struct bcm43xx_led *led,
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unsigned long interval)
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{
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led->blink_interval = interval;
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bcm43xx_led_changestate(led);
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led->blink_timer.expires = jiffies + interval;
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add_timer(&led->blink_timer);
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}
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static void bcm43xx_led_blink_stop(struct bcm43xx_led *led, int sync)
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{
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struct bcm43xx_private *bcm = led->bcm;
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const int index = bcm43xx_led_index(led);
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u16 ledctl;
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if (!led->blink_interval)
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return;
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if (unlikely(sync))
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del_timer_sync(&led->blink_timer);
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else
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del_timer(&led->blink_timer);
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led->blink_interval = 0;
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/* Make sure the LED is turned off. */
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assert(index >= 0 && index < BCM43xx_NR_LEDS);
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ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL);
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if (led->activelow)
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ledctl |= (1 << index);
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else
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ledctl &= ~(1 << index);
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bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl);
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}
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int bcm43xx_leds_init(struct bcm43xx_private *bcm)
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{
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struct bcm43xx_led *led;
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u8 sprom[4];
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int i;
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sprom[0] = bcm->sprom.wl0gpio0;
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sprom[1] = bcm->sprom.wl0gpio1;
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sprom[2] = bcm->sprom.wl0gpio2;
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sprom[3] = bcm->sprom.wl0gpio3;
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for (i = 0; i < BCM43xx_NR_LEDS; i++) {
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led = &(bcm->leds[i]);
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led->bcm = bcm;
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init_timer(&led->blink_timer);
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led->blink_timer.data = (unsigned long)led;
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led->blink_timer.function = bcm43xx_led_blink;
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if (sprom[i] == 0xFF) {
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/* SPROM information not set. */
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switch (i) {
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case 0:
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if (bcm->board_vendor == PCI_VENDOR_ID_COMPAQ)
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led->behaviour = BCM43xx_LED_RADIO_ALL;
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else
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led->behaviour = BCM43xx_LED_ACTIVITY;
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break;
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case 1:
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led->behaviour = BCM43xx_LED_RADIO_B;
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break;
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case 2:
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led->behaviour = BCM43xx_LED_RADIO_A;
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break;
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case 3:
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led->behaviour = BCM43xx_LED_OFF;
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break;
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default:
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assert(0);
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}
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} else {
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led->behaviour = sprom[i] & BCM43xx_LED_BEHAVIOUR;
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led->activelow = !!(sprom[i] & BCM43xx_LED_ACTIVELOW);
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}
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}
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return 0;
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}
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void bcm43xx_leds_exit(struct bcm43xx_private *bcm)
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{
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struct bcm43xx_led *led;
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int i;
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for (i = 0; i < BCM43xx_NR_LEDS; i++) {
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led = &(bcm->leds[i]);
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bcm43xx_led_blink_stop(led, 1);
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}
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bcm43xx_leds_turn_off(bcm);
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}
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void bcm43xx_leds_update(struct bcm43xx_private *bcm, int activity)
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{
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struct bcm43xx_led *led;
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struct bcm43xx_radioinfo *radio = bcm->current_core->radio;
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struct bcm43xx_phyinfo *phy = bcm->current_core->phy;
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const int transferring = (jiffies - bcm->stats.last_tx) < BCM43xx_LED_XFER_THRES;
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int i, turn_on = 0;
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unsigned long interval = 0;
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u16 ledctl;
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ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL);
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for (i = 0; i < BCM43xx_NR_LEDS; i++) {
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led = &(bcm->leds[i]);
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if (led->behaviour == BCM43xx_LED_INACTIVE)
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continue;
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switch (led->behaviour) {
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case BCM43xx_LED_OFF:
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turn_on = 0;
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break;
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case BCM43xx_LED_ON:
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turn_on = 1;
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break;
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case BCM43xx_LED_ACTIVITY:
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turn_on = activity;
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break;
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case BCM43xx_LED_RADIO_ALL:
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turn_on = radio->enabled;
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break;
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case BCM43xx_LED_RADIO_A:
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turn_on = (radio->enabled && phy->type == BCM43xx_PHYTYPE_A);
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break;
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case BCM43xx_LED_RADIO_B:
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turn_on = (radio->enabled &&
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(phy->type == BCM43xx_PHYTYPE_B ||
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phy->type == BCM43xx_PHYTYPE_G));
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break;
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case BCM43xx_LED_MODE_BG:
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turn_on = 0;
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if (phy->type == BCM43xx_PHYTYPE_G &&
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1/*FIXME: using G rates.*/)
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turn_on = 1;
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break;
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case BCM43xx_LED_TRANSFER:
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if (transferring)
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bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_MEDIUM);
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else
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bcm43xx_led_blink_stop(led, 0);
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continue;
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case BCM43xx_LED_APTRANSFER:
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if (bcm->ieee->iw_mode == IW_MODE_MASTER) {
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if (transferring) {
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interval = BCM43xx_LEDBLINK_FAST;
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turn_on = 1;
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}
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} else {
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turn_on = 1;
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if (0/*TODO: not assoc*/)
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interval = BCM43xx_LEDBLINK_SLOW;
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else if (transferring)
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interval = BCM43xx_LEDBLINK_FAST;
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else
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turn_on = 0;
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}
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if (turn_on)
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bcm43xx_led_blink_start(led, interval);
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else
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bcm43xx_led_blink_stop(led, 0);
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continue;
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case BCM43xx_LED_WEIRD:
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//TODO
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turn_on = 0;
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break;
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case BCM43xx_LED_ASSOC:
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if (1/*TODO: associated*/)
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turn_on = 1;
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break;
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default:
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assert(0);
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};
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if (led->activelow)
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turn_on = !turn_on;
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if (turn_on)
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ledctl |= (1 << i);
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else
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ledctl &= ~(1 << i);
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}
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bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl);
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}
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void bcm43xx_leds_turn_off(struct bcm43xx_private *bcm)
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{
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struct bcm43xx_led *led;
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u16 ledctl = 0;
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int i;
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for (i = 0; i < BCM43xx_NR_LEDS; i++) {
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led = &(bcm->leds[i]);
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if (led->behaviour == BCM43xx_LED_INACTIVE)
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continue;
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if (led->activelow)
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ledctl |= (1 << i);
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}
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bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl);
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}
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/* vim: set ts=8 sw=8 sts=8: */
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