2 * linux/arch/arm/mach-pxa/leds-trizeps4.c
4 * Author: Jürgen Schindele
6 * Copyright: Jürgen Schindele
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.
13 #include <linux/init.h>
15 #include <asm/hardware.h>
16 #include <asm/system.h>
17 #include <asm/types.h>
20 #include <asm/arch/pxa-regs.h>
21 #include <asm/arch/pxa2xx-gpio.h>
22 #include <asm/arch/trizeps4.h>
26 #define LED_STATE_ENABLED 1
27 #define LED_STATE_CLAIMED 2
30 #define HEARTBEAT 0x02
33 static unsigned int led_state
;
34 static unsigned int hw_led_state
;
36 void trizeps4_leds_event(led_event_t evt
)
40 local_irq_save(flags
);
45 pxa_gpio_mode( GPIO_SYS_BUSY_LED
| GPIO_OUT
); /* LED1 */
46 pxa_gpio_mode( GPIO_HEARTBEAT_LED
| GPIO_OUT
); /* LED2 */
47 led_state
= LED_STATE_ENABLED
;
51 led_state
&= ~LED_STATE_ENABLED
;
55 led_state
|= LED_STATE_CLAIMED
;
60 led_state
&= ~LED_STATE_CLAIMED
;
64 #ifdef CONFIG_LEDS_TIMER
66 hw_led_state
^= HEARTBEAT
;
70 #ifdef CONFIG_LEDS_CPU
72 hw_led_state
&= ~SYS_BUSY
;
76 hw_led_state
|= SYS_BUSY
;
84 hw_led_state
|= BLINK
;
88 hw_led_state
&= ~BLINK
;
107 if (led_state
& LED_STATE_ENABLED
) {
108 switch (hw_led_state
) {
110 GPSR(GPIO_SYS_BUSY_LED
) |= GPIO_bit(GPIO_SYS_BUSY_LED
);
111 GPSR(GPIO_HEARTBEAT_LED
) |= GPIO_bit(GPIO_HEARTBEAT_LED
);
114 GPCR(GPIO_SYS_BUSY_LED
) |= GPIO_bit(GPIO_SYS_BUSY_LED
);
115 GPSR(GPIO_HEARTBEAT_LED
) |= GPIO_bit(GPIO_HEARTBEAT_LED
);
118 GPSR(GPIO_SYS_BUSY_LED
) |= GPIO_bit(GPIO_SYS_BUSY_LED
);
119 GPCR(GPIO_HEARTBEAT_LED
) |= GPIO_bit(GPIO_HEARTBEAT_LED
);
122 GPCR(GPIO_SYS_BUSY_LED
) |= GPIO_bit(GPIO_SYS_BUSY_LED
);
123 GPCR(GPIO_HEARTBEAT_LED
) |= GPIO_bit(GPIO_HEARTBEAT_LED
);
129 GPSR(GPIO_SYS_BUSY_LED
) |= GPIO_bit(GPIO_SYS_BUSY_LED
);
130 GPSR(GPIO_HEARTBEAT_LED
) |= GPIO_bit(GPIO_HEARTBEAT_LED
);
133 local_irq_restore(flags
);
This page took 0.034413 seconds and 5 git commands to generate.