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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-pxa/leds-lubbock.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2v2.6.12-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!
Diffstat (limited to 'arch/arm/mach-pxa/leds-lubbock.c')
-rw-r--r-- | arch/arm/mach-pxa/leds-lubbock.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/leds-lubbock.c b/arch/arm/mach-pxa/leds-lubbock.c new file mode 100644 index 000000000000..05cf56059a0f --- /dev/null +++ b/arch/arm/mach-pxa/leds-lubbock.c @@ -0,0 +1,126 @@ +/* + * linux/arch/arm/mach-pxa/leds-lubbock.c + * + * Copyright (C) 2000 John Dorsey <john+@cs.cmu.edu> + * + * Copyright (c) 2001 Jeff Sutherland <jeffs@accelent.com> + * + * Original (leds-footbridge.c) by Russell King + * + * Major surgery on April 2004 by Nicolas Pitre for less global + * namespace collision. Mostly adapted the Mainstone version. + */ + +#include <linux/config.h> +#include <linux/init.h> + +#include <asm/hardware.h> +#include <asm/leds.h> +#include <asm/system.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/lubbock.h> + +#include "leds.h" + +/* + * 8 discrete leds available for general use: + * + * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays + * so be sure to not monkey with them here. + */ + +#define D28 (1 << 0) +#define D27 (1 << 1) +#define D26 (1 << 2) +#define D25 (1 << 3) +#define D24 (1 << 4) +#define D23 (1 << 5) +#define D22 (1 << 6) +#define D21 (1 << 7) + +#define LED_STATE_ENABLED 1 +#define LED_STATE_CLAIMED 2 + +static unsigned int led_state; +static unsigned int hw_led_state; + +void lubbock_leds_event(led_event_t evt) +{ + unsigned long flags; + + local_irq_save(flags); + + switch (evt) { + case led_start: + hw_led_state = 0; + 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 = 0; + break; + + case led_release: + led_state &= ~LED_STATE_CLAIMED; + hw_led_state = 0; + break; + +#ifdef CONFIG_LEDS_TIMER + case led_timer: + hw_led_state ^= D26; + break; +#endif + +#ifdef CONFIG_LEDS_CPU + case led_idle_start: + hw_led_state &= ~D27; + break; + + case led_idle_end: + hw_led_state |= D27; + break; +#endif + + case led_halted: + break; + + case led_green_on: + hw_led_state |= D21; + break; + + case led_green_off: + hw_led_state &= ~D21; + break; + + case led_amber_on: + hw_led_state |= D22; + break; + + case led_amber_off: + hw_led_state &= ~D22; + break; + + case led_red_on: + hw_led_state |= D23; + break; + + case led_red_off: + hw_led_state &= ~D23; + break; + + default: + break; + } + + if (led_state & LED_STATE_ENABLED) + LUB_DISC_BLNK_LED = (LUB_DISC_BLNK_LED | 0xff) & ~hw_led_state; + else + LUB_DISC_BLNK_LED |= 0xff; + + local_irq_restore(flags); +} |