patch-2.4.0-test9 linux/arch/arm/kernel/leds-footbridge.c
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- Lines: 258
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.0-test8/linux/arch/arm/kernel/leds-footbridge.c
- Orig date:
Sun Aug 13 09:54:15 2000
diff -u --recursive --new-file v2.4.0-test8/linux/arch/arm/kernel/leds-footbridge.c linux/arch/arm/kernel/leds-footbridge.c
@@ -1,257 +0,0 @@
-/*
- * arch/arm/kernel/leds-footbridge.c
- *
- * Copyright (C) 1998-1999 Russell King
- *
- * EBSA-285 and NetWinder LED control routines.
- *
- * The EBSA-285 uses the leds as follows:
- * - Green - toggles state every 50 timer interrupts
- * - Amber - On if system is not idle
- * - Red - currently unused
- *
- * The Netwinder uses the leds as follows:
- * - Green - toggles state every 50 timer interrupts
- * - Red - On if the system is not idle
- *
- * Changelog:
- * 02-05-1999 RMK Various cleanups
- */
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-
-#include <asm/hardware.h>
-#include <asm/leds.h>
-#include <asm/mach-types.h>
-#include <asm/system.h>
-
-#define LED_STATE_ENABLED 1
-#define LED_STATE_CLAIMED 2
-static char led_state;
-static char hw_led_state;
-
-static spinlock_t leds_lock = SPIN_LOCK_UNLOCKED;
-extern spinlock_t gpio_lock;
-
-#if defined(CONFIG_ARCH_EBSA285) || defined(CONFIG_ARCH_CO285)
-
-static void ebsa285_leds_event(led_event_t evt)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&leds_lock, flags);
-
- switch (evt) {
- case led_start:
- hw_led_state = XBUS_LED_RED | XBUS_LED_GREEN;
-#ifndef CONFIG_LEDS_CPU
- hw_led_state |= XBUS_LED_AMBER;
-#endif
- led_state |= LED_STATE_ENABLED;
- break;
-
- case led_stop:
- led_state &= ~LED_STATE_ENABLED;
- break;
-
- case led_claim:
- led_state |= LED_STATE_CLAIMED;
- hw_led_state = XBUS_LED_RED | XBUS_LED_GREEN | XBUS_LED_AMBER;
- break;
-
- case led_release:
- led_state &= ~LED_STATE_CLAIMED;
- hw_led_state = XBUS_LED_RED | XBUS_LED_GREEN | XBUS_LED_AMBER;
- break;
-
-#ifdef CONFIG_LEDS_TIMER
- case led_timer:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state ^= XBUS_LED_GREEN;
- break;
-#endif
-
-#ifdef CONFIG_LEDS_CPU
- case led_idle_start:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state |= XBUS_LED_AMBER;
- break;
-
- case led_idle_end:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state &= ~XBUS_LED_AMBER;
- break;
-#endif
-
- case led_halted:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state &= ~XBUS_LED_RED;
- break;
-
- case led_green_on:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state &= ~XBUS_LED_GREEN;
- break;
-
- case led_green_off:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state |= XBUS_LED_GREEN;
- break;
-
- case led_amber_on:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state &= ~XBUS_LED_AMBER;
- break;
-
- case led_amber_off:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state |= XBUS_LED_AMBER;
- break;
-
- case led_red_on:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state &= ~XBUS_LED_RED;
- break;
-
- case led_red_off:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state |= XBUS_LED_RED;
- break;
-
- default:
- break;
- }
-
- if (led_state & LED_STATE_ENABLED)
- *XBUS_LEDS = hw_led_state;
-
- spin_unlock_irqrestore(&leds_lock, flags);
-}
-
-#endif
-
-#ifdef CONFIG_ARCH_NETWINDER
-
-static void netwinder_leds_event(led_event_t evt)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&leds_lock, flags);
-
- switch (evt) {
- case led_start:
- led_state |= LED_STATE_ENABLED;
- hw_led_state = GPIO_GREEN_LED;
- break;
-
- case led_stop:
- led_state &= ~LED_STATE_ENABLED;
- break;
-
- case led_claim:
- led_state |= LED_STATE_CLAIMED;
- hw_led_state = 0;
- break;
-
- case led_release:
- led_state &= ~LED_STATE_CLAIMED;
- hw_led_state = 0;
- break;
-
-#ifdef CONFIG_LEDS_TIMER
- case led_timer:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state ^= GPIO_GREEN_LED;
- break;
-#endif
-
-#ifdef CONFIG_LEDS_CPU
- case led_idle_start:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state &= ~GPIO_RED_LED;
- break;
-
- case led_idle_end:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state |= GPIO_RED_LED;
- break;
-#endif
-
- case led_halted:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state |= GPIO_RED_LED;
- break;
-
- case led_green_on:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state |= GPIO_GREEN_LED;
- break;
-
- case led_green_off:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state &= ~GPIO_GREEN_LED;
- break;
-
- case led_amber_on:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state |= GPIO_GREEN_LED | GPIO_RED_LED;
- break;
-
- case led_amber_off:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state &= ~(GPIO_GREEN_LED | GPIO_RED_LED);
- break;
-
- case led_red_on:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state |= GPIO_RED_LED;
- break;
-
- case led_red_off:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state &= ~GPIO_RED_LED;
- break;
-
- default:
- break;
- }
-
- spin_unlock_irqrestore(&leds_lock, flags);
-
- if (led_state & LED_STATE_ENABLED) {
- spin_lock_irqsave(&gpio_lock, flags);
- gpio_modify_op(GPIO_RED_LED | GPIO_GREEN_LED, hw_led_state);
- spin_unlock_irqrestore(&gpio_lock, flags);
- }
-}
-
-#endif
-
-static void dummy_leds_event(led_event_t evt)
-{
-}
-
-void (*leds_event)(led_event_t) = dummy_leds_event;
-
-EXPORT_SYMBOL(leds_event);
-
-static int __init leds_init(void)
-{
-#if defined(CONFIG_ARCH_EBSA285) || defined(CONFIG_ARCH_CO285)
- if (machine_is_ebsa285() || machine_is_co285())
- leds_event = ebsa285_leds_event;
-#endif
-#ifdef CONFIG_ARCH_NETWINDER
- if (machine_is_netwinder())
- leds_event = netwinder_leds_event;
-#endif
-
- leds_event(led_start);
-
- return 0;
-}
-
-__initcall(leds_init);
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