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https://github.com/brain-hackers/u-boot-brain
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3e6b86b555
This patch adds a status led driver followed the GPIO access conventions of Linux. The led mask is used to specify the gpio pin. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Tested-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Scott McNutt <smcnutt@psyent.com>
31 lines
717 B
C
31 lines
717 B
C
/*
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* Status LED driver based on GPIO access conventions of Linux
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*
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* Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <common.h>
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#include <status_led.h>
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#include <asm/gpio.h>
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/* assume led is active low */
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void __led_init(led_id_t mask, int state)
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{
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gpio_direction_output(mask, (state == STATUS_LED_ON) ? 0 : 1);
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}
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void __led_set(led_id_t mask, int state)
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{
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gpio_set_value(mask, (state == STATUS_LED_ON) ? 0 : 1);
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}
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void __led_toggle(led_id_t mask)
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{
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gpio_set_value(mask, !gpio_get_value(mask));
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}
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