From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/arm/mach-sa1100/leds-assabet.c | 115 ++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 arch/arm/mach-sa1100/leds-assabet.c (limited to 'arch/arm/mach-sa1100/leds-assabet.c') diff --git a/arch/arm/mach-sa1100/leds-assabet.c b/arch/arm/mach-sa1100/leds-assabet.c new file mode 100644 index 00000000000..e9aa9dff211 --- /dev/null +++ b/arch/arm/mach-sa1100/leds-assabet.c @@ -0,0 +1,115 @@ +/* + * linux/arch/arm/mach-sa1100/leds-assabet.c + * + * Copyright (C) 2000 John Dorsey + * + * Original (leds-footbridge.c) by Russell King + * + * Assabet uses the LEDs as follows: + * - Green - toggles state every 50 timer interrupts + * - Red - on if system is not idle + */ +#include +#include + +#include +#include +#include +#include + +#include "leds.h" + + +#define LED_STATE_ENABLED 1 +#define LED_STATE_CLAIMED 2 + +static unsigned int led_state; +static unsigned int hw_led_state; + +#define ASSABET_BCR_LED_MASK (ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED) + +void assabet_leds_event(led_event_t evt) +{ + unsigned long flags; + + local_irq_save(flags); + + switch (evt) { + case led_start: + hw_led_state = ASSABET_BCR_LED_RED | ASSABET_BCR_LED_GREEN; + led_state = LED_STATE_ENABLED; + break; + + case led_stop: + led_state &= ~LED_STATE_ENABLED; + hw_led_state = ASSABET_BCR_LED_RED | ASSABET_BCR_LED_GREEN; + ASSABET_BCR_frob(ASSABET_BCR_LED_MASK, hw_led_state); + break; + + case led_claim: + led_state |= LED_STATE_CLAIMED; + hw_led_state = ASSABET_BCR_LED_RED | ASSABET_BCR_LED_GREEN; + break; + + case led_release: + led_state &= ~LED_STATE_CLAIMED; + hw_led_state = ASSABET_BCR_LED_RED | ASSABET_BCR_LED_GREEN; + break; + +#ifdef CONFIG_LEDS_TIMER + case led_timer: + if (!(led_state & LED_STATE_CLAIMED)) + hw_led_state ^= ASSABET_BCR_LED_GREEN; + break; +#endif + +#ifdef CONFIG_LEDS_CPU + case led_idle_start: + if (!(led_state & LED_STATE_CLAIMED)) + hw_led_state |= ASSABET_BCR_LED_RED; + break; + + case led_idle_end: + if (!(led_state & LED_STATE_CLAIMED)) + hw_led_state &= ~ASSABET_BCR_LED_RED; + break; +#endif + + case led_halted: + break; + + case led_green_on: + if (led_state & LED_STATE_CLAIMED) + hw_led_state &= ~ASSABET_BCR_LED_GREEN; + break; + + case led_green_off: + if (led_state & LED_STATE_CLAIMED) + hw_led_state |= ASSABET_BCR_LED_GREEN; + break; + + case led_amber_on: + break; + + case led_amber_off: + break; + + case led_red_on: + if (led_state & LED_STATE_CLAIMED) + hw_led_state &= ~ASSABET_BCR_LED_RED; + break; + + case led_red_off: + if (led_state & LED_STATE_CLAIMED) + hw_led_state |= ASSABET_BCR_LED_RED; + break; + + default: + break; + } + + if (led_state & LED_STATE_ENABLED) + ASSABET_BCR_frob(ASSABET_BCR_LED_MASK, hw_led_state); + + local_irq_restore(flags); +} -- cgit v1.2.3