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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/arm/mach-pxa/leds-idp.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/arm/mach-pxa/leds-idp.c')
-rw-r--r-- | arch/arm/mach-pxa/leds-idp.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/leds-idp.c b/arch/arm/mach-pxa/leds-idp.c new file mode 100644 index 00000000..06b06002 --- /dev/null +++ b/arch/arm/mach-pxa/leds-idp.c @@ -0,0 +1,115 @@ +/* + * linux/arch/arm/mach-pxa/leds-idp.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 + * + * Macros for actual LED manipulation should be in machine specific + * files in this 'mach' directory. + */ + + +#include <linux/init.h> + +#include <mach/hardware.h> +#include <asm/leds.h> + +#include <mach/pxa25x.h> +#include <mach/idp.h> + +#include "leds.h" + +#define LED_STATE_ENABLED 1 +#define LED_STATE_CLAIMED 2 + +static unsigned int led_state; +static unsigned int hw_led_state; + +void idp_leds_event(led_event_t evt) +{ + unsigned long flags; + + local_irq_save(flags); + + switch (evt) { + case led_start: + hw_led_state = IDP_HB_LED | IDP_BUSY_LED; + 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 = IDP_HB_LED | IDP_BUSY_LED; + break; + + case led_release: + led_state &= ~LED_STATE_CLAIMED; + hw_led_state = IDP_HB_LED | IDP_BUSY_LED; + break; + +#ifdef CONFIG_LEDS_TIMER + case led_timer: + if (!(led_state & LED_STATE_CLAIMED)) + hw_led_state ^= IDP_HB_LED; + break; +#endif + +#ifdef CONFIG_LEDS_CPU + case led_idle_start: + if (!(led_state & LED_STATE_CLAIMED)) + hw_led_state &= ~IDP_BUSY_LED; + break; + + case led_idle_end: + if (!(led_state & LED_STATE_CLAIMED)) + hw_led_state |= IDP_BUSY_LED; + break; +#endif + + case led_halted: + break; + + case led_green_on: + if (led_state & LED_STATE_CLAIMED) + hw_led_state |= IDP_HB_LED; + break; + + case led_green_off: + if (led_state & LED_STATE_CLAIMED) + hw_led_state &= ~IDP_HB_LED; + break; + + case led_amber_on: + break; + + case led_amber_off: + break; + + case led_red_on: + if (led_state & LED_STATE_CLAIMED) + hw_led_state |= IDP_BUSY_LED; + break; + + case led_red_off: + if (led_state & LED_STATE_CLAIMED) + hw_led_state &= ~IDP_BUSY_LED; + break; + + default: + break; + } + + if (led_state & LED_STATE_ENABLED) + IDP_CPLD_LED_CONTROL = ( (IDP_CPLD_LED_CONTROL | IDP_LEDS_MASK) & ~hw_led_state); + else + IDP_CPLD_LED_CONTROL |= IDP_LEDS_MASK; + + local_irq_restore(flags); +} |