80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2013 Corscience GmbH & Co.KG
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* Andreas Bießmann <andreas.biessmann@corscience.de>
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*/
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#include <common.h>
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#include <status_led.h>
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#include <twl4030.h>
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#include <asm/arch/cpu.h>
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#include <asm/io.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/gpio.h>
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#define TRICORDER_STATUS_LED_YELLOW 42
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#define TRICORDER_STATUS_LED_GREEN 43
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void __led_init(led_id_t mask, int state)
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{
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__led_set(mask, state);
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}
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void __led_toggle(led_id_t mask)
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{
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int toggle_gpio = 0;
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#ifdef CONFIG_LED_STATUS0
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if (!toggle_gpio && CONFIG_LED_STATUS_BIT & mask)
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toggle_gpio = TRICORDER_STATUS_LED_GREEN;
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#endif
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#ifdef CONFIG_LED_STATUS1
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if (!toggle_gpio && CONFIG_LED_STATUS_BIT1 & mask)
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toggle_gpio = TRICORDER_STATUS_LED_YELLOW;
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#endif
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#ifdef CONFIG_LED_STATUS2
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if (!toggle_gpio && CONFIG_LED_STATUS_BIT2 & mask) {
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uint8_t val;
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twl4030_i2c_read_u8(TWL4030_CHIP_LED, TWL4030_LED_LEDEN,
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&val);
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val ^= (TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDAPWM);
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twl4030_i2c_write_u8(TWL4030_CHIP_LED, TWL4030_LED_LEDEN,
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val);
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}
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#endif
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if (toggle_gpio) {
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int state;
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gpio_request(toggle_gpio, "");
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state = gpio_get_value(toggle_gpio);
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gpio_set_value(toggle_gpio, !state);
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}
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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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#ifdef CONFIG_LED_STATUS0
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if (CONFIG_LED_STATUS_BIT & mask) {
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gpio_request(TRICORDER_STATUS_LED_GREEN, "");
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gpio_direction_output(TRICORDER_STATUS_LED_GREEN, 0);
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gpio_set_value(TRICORDER_STATUS_LED_GREEN, state);
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}
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#endif
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#ifdef CONFIG_LED_STATUS1
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if (CONFIG_LED_STATUS_BIT1 & mask) {
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gpio_request(TRICORDER_STATUS_LED_YELLOW, "");
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gpio_direction_output(TRICORDER_STATUS_LED_YELLOW, 0);
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gpio_set_value(TRICORDER_STATUS_LED_YELLOW, state);
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}
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#endif
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#ifdef CONFIG_LED_STATUS2
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if (CONFIG_LED_STATUS_BIT2 & mask) {
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if (CONFIG_LED_STATUS_OFF == state)
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twl4030_i2c_write_u8(TWL4030_CHIP_LED,
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TWL4030_LED_LEDEN, 0);
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else
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twl4030_i2c_write_u8(TWL4030_CHIP_LED,
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TWL4030_LED_LEDEN,
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(TWL4030_LED_LEDEN_LEDAON |
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TWL4030_LED_LEDEN_LEDAPWM));
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}
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#endif
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}
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