93 строки
1.9 KiB
C
93 строки
1.9 KiB
C
/*
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* LED driver for Atmel AT91-based boards.
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*
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* Copyright (C) SAN People (Pty) Ltd
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/gpio.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include "board.h"
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/* ------------------------------------------------------------------------- */
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#if defined(CONFIG_NEW_LEDS)
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/*
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* New cross-platform LED support.
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*/
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static struct gpio_led_platform_data led_data;
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static struct platform_device at91_gpio_leds_device = {
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.name = "leds-gpio",
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.id = -1,
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.dev.platform_data = &led_data,
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};
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void __init at91_gpio_leds(struct gpio_led *leds, int nr)
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{
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int i;
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if (!nr)
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return;
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for (i = 0; i < nr; i++)
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at91_set_gpio_output(leds[i].gpio, leds[i].active_low);
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led_data.leds = leds;
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led_data.num_leds = nr;
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platform_device_register(&at91_gpio_leds_device);
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}
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#else
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void __init at91_gpio_leds(struct gpio_led *leds, int nr) {}
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#endif
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/* ------------------------------------------------------------------------- */
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#if defined (CONFIG_LEDS_ATMEL_PWM)
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/*
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* PWM Leds
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*/
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static struct gpio_led_platform_data pwm_led_data;
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static struct platform_device at91_pwm_leds_device = {
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.name = "leds-atmel-pwm",
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.id = -1,
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.dev.platform_data = &pwm_led_data,
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};
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void __init at91_pwm_leds(struct gpio_led *leds, int nr)
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{
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int i;
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u32 pwm_mask = 0;
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if (!nr)
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return;
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for (i = 0; i < nr; i++)
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pwm_mask |= (1 << leds[i].gpio);
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pwm_led_data.leds = leds;
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pwm_led_data.num_leds = nr;
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at91_add_device_pwm(pwm_mask);
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platform_device_register(&at91_pwm_leds_device);
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}
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#else
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void __init at91_pwm_leds(struct gpio_led *leds, int nr){}
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#endif
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