/*
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* (C) Copyright 2007-2013
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Char <yanjianbo@allwinnertech.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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 as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <common.h>
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#include <asm/arch/timer.h>
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#include <sys_config.h>
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#include <asm/arch/cpu.h>
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#include <fdt_support.h>
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#include <sys_config.h>
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#include <asm-generic/gpio.h>
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#include <sunxi_board.h>
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struct timer_list TIMER0;
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static int sprite_led_status;
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static __u32 sprite_led_hd;
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/*
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************************************************************************************************************
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*
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* function
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*
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* 函数名称：
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*
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* 参数列表：
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*
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* 返回值 ：
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*
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* 说明 ：
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*
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*
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************************************************************************************************************
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*/
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static void sprite_timer_func(void *p)
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{
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gpio_write_one_pin_value(sprite_led_hd, sprite_led_status,
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"sprite_gpio0");
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sprite_led_status = (~sprite_led_status) & 0x01;
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//printf("sprite_time_func\n");
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del_timer(&TIMER0);
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add_timer(&TIMER0);
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return;
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* 函数名称：
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*
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* 参数列表：
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*
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* 返回值 ：
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*
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* 说明 ：
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*
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*
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************************************************************************************************************
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*/
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int sprite_led_init(void)
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{
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user_gpio_set_t gpio_init;
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int ret = 0;
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int delay = 0;
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sprite_led_status = 1;
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//正常工作时，灯闪烁的时间
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ret = script_parser_fetch("/soc/card_boot", "sprite_work_delay",
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(void *)&delay, 0);
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if (!delay) {
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delay = 500;
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}
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pr_msg("try sprite_led_gpio config\n");
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memset(&gpio_init, 0, sizeof(user_gpio_set_t));
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//配置输出gpio口
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ret = fdt_get_one_gpio(FDT_PATH_CARD_BOOT, "sprite_gpio0", &gpio_init);
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if (!ret) {
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if (gpio_init.port) {
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sprite_led_hd = sunxi_gpio_request(&gpio_init, 1);
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if (!sprite_led_hd) {
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pr_err("reuqest gpio for led failed\n");
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return 1;
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}
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TIMER0.data = (unsigned long)&TIMER0;
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TIMER0.expires = delay;
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TIMER0.function = sprite_timer_func;
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//init_timer(&TIMER0);
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add_timer(&TIMER0);
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tick_printf("sprite_led_gpio start\n");
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return 0;
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}
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}
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return 0;
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* 函数名称：
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*
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* 参数列表：
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*
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* 返回值 ：
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*
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* 说明 ：
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*
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*
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************************************************************************************************************
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*/
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int sprite_led_exit(int status)
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{
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//int ret;
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int delay;
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int nodeoffset;
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del_timer(&TIMER0);
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//出错的时候，led的闪烁加快
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if (status < 0) {
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delay = 0;
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nodeoffset = fdt_path_offset(working_fdt, FDT_PATH_CARD_BOOT);
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if (nodeoffset > 0) {
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fdt_getprop_u32(working_fdt, nodeoffset,
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"sprite_err_delay", (uint32_t *)&delay);
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}
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if (!delay) {
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delay = 100;
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}
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del_timer(&TIMER0);
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TIMER0.data = (unsigned long)&TIMER0;
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TIMER0.expires = delay;
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TIMER0.function = sprite_timer_func;
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//init_timer(&TIMER0);
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add_timer(&TIMER0);
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}
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return 0;
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}
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