git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/arch/arm/mach-pxa/leds-mainstone.c | |
| 3 | * | |
| 4 | * Author: Nicolas Pitre | |
| 5 | * Created: Nov 05, 2002 | |
| 6 | * Copyright: MontaVista Software Inc. | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | */ | |
| 12 | ||
| 1da177e4 LT |
13 | #include <linux/init.h> |
| 14 | ||
| a09e64fb | 15 | #include <mach/hardware.h> |
| 1da177e4 LT |
16 | #include <asm/leds.h> |
| 17 | #include <asm/system.h> | |
| 18 | ||
| a09e64fb RK |
19 | #include <mach/pxa-regs.h> |
| 20 | #include <mach/mainstone.h> | |
| 1da177e4 LT |
21 | |
| 22 | #include "leds.h" | |
| 23 | ||
| 24 | ||
| 25 | /* 8 discrete leds available for general use: */ | |
| 26 | #define D28 (1 << 0) | |
| 27 | #define D27 (1 << 1) | |
| 28 | #define D26 (1 << 2) | |
| 29 | #define D25 (1 << 3) | |
| 30 | #define D24 (1 << 4) | |
| 31 | #define D23 (1 << 5) | |
| 32 | #define D22 (1 << 6) | |
| 33 | #define D21 (1 << 7) | |
| 34 | ||
| 35 | #define LED_STATE_ENABLED 1 | |
| 36 | #define LED_STATE_CLAIMED 2 | |
| 37 | ||
| 38 | static unsigned int led_state; | |
| 39 | static unsigned int hw_led_state; | |
| 40 | ||
| 41 | void mainstone_leds_event(led_event_t evt) | |
| 42 | { | |
| 43 | unsigned long flags; | |
| 44 | ||
| 45 | local_irq_save(flags); | |
| 46 | ||
| 47 | switch (evt) { | |
| 48 | case led_start: | |
| 49 | hw_led_state = 0; | |
| 50 | led_state = LED_STATE_ENABLED; | |
| 51 | break; | |
| 52 | ||
| 53 | case led_stop: | |
| 54 | led_state &= ~LED_STATE_ENABLED; | |
| 55 | break; | |
| 56 | ||
| 57 | case led_claim: | |
| 58 | led_state |= LED_STATE_CLAIMED; | |
| 59 | hw_led_state = 0; | |
| 60 | break; | |
| 61 | ||
| 62 | case led_release: | |
| 63 | led_state &= ~LED_STATE_CLAIMED; | |
| 64 | hw_led_state = 0; | |
| 65 | break; | |
| 66 | ||
| 67 | #ifdef CONFIG_LEDS_TIMER | |
| 68 | case led_timer: | |
| 69 | hw_led_state ^= D26; | |
| 70 | break; | |
| 71 | #endif | |
| 72 | ||
| 73 | #ifdef CONFIG_LEDS_CPU | |
| 74 | case led_idle_start: | |
| 75 | hw_led_state &= ~D27; | |
| 76 | break; | |
| 77 | ||
| 78 | case led_idle_end: | |
| 79 | hw_led_state |= D27; | |
| 80 | break; | |
| 81 | #endif | |
| 82 | ||
| 83 | case led_halted: | |
| 84 | break; | |
| 85 | ||
| 86 | case led_green_on: | |
| 53b3531b | 87 | hw_led_state |= D21; |
| 1da177e4 LT |
88 | break; |
| 89 | ||
| 90 | case led_green_off: | |
| 91 | hw_led_state &= ~D21; | |
| 92 | break; | |
| 93 | ||
| 94 | case led_amber_on: | |
| 53b3531b | 95 | hw_led_state |= D22; |
| 1da177e4 LT |
96 | break; |
| 97 | ||
| 98 | case led_amber_off: | |
| 99 | hw_led_state &= ~D22; | |
| 100 | break; | |
| 101 | ||
| 102 | case led_red_on: | |
| 53b3531b | 103 | hw_led_state |= D23; |
| 1da177e4 LT |
104 | break; |
| 105 | ||
| 106 | case led_red_off: | |
| 107 | hw_led_state &= ~D23; | |
| 108 | break; | |
| 109 | ||
| 110 | default: | |
| 111 | break; | |
| 112 | } | |
| 113 | ||
| 114 | if (led_state & LED_STATE_ENABLED) | |
| 115 | MST_LEDCTRL = (MST_LEDCTRL | 0xff) & ~hw_led_state; | |
| 116 | else | |
| 117 | MST_LEDCTRL |= 0xff; | |
| 118 | ||
| 119 | local_irq_restore(flags); | |
| 120 | } |