159 lines
3.4 KiB
C
159 lines
3.4 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-03-18 Carl the first version
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*/
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#include <rtthread.h>
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#ifdef BSP_USING_SDC
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#include <dfs_elm.h>
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#include <dfs_fs.h>
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#include <dfs_file.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <sys/statfs.h>
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#include "drv_sdctrl.h"
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#define DBG_TAG "app.card"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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static rt_err_t _sdcard_mount(void)
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{
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rt_device_t device;
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device = rt_device_find("sd0");
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rt_kprintf("rt_device_find %x \r\n", device);
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if (device == NULL)
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{
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mmcsd_wait_cd_changed(0);
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ft2004_mmcsd_change();
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if (mmcsd_wait_cd_changed(rt_tick_from_millisecond(5000)) == -RT_ETIMEOUT)
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{
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rt_kprintf("timeout \r\n");
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return RT_ERROR;
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}
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device = rt_device_find("sd0");
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}
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rt_thread_mdelay(1000);
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LOG_I("dfs_mount \r\n");
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if (device != RT_NULL)
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{
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if (dfs_mount("sd0", "/", "elm", 0, 0) == RT_EOK)
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{
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LOG_I("sd card mount to '/'");
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}
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else
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{
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LOG_W("sd card mount to '/' failed!");
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return RT_ERROR;
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}
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}
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return RT_EOK;
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}
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static void _sdcard_unmount(void)
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{
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rt_thread_mdelay(200);
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dfs_unmount("/");
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LOG_I("Unmount \"/\"");
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mmcsd_wait_cd_changed(0);
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ft2004_mmcsd_change();
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mmcsd_wait_cd_changed(rt_tick_from_millisecond(5000));
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LOG_I("Unmount is over \r\n");
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}
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static void sd_mount(void *parameter)
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{
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rt_uint8_t state = 0; /* 1. is valid card ,0 is removal */
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#ifdef BSP_SDC_IRQ_CARD_REMOVE
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rt_uint32_t status;
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#endif
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while (1)
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{
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switch (state)
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{
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case 0:
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if (ft2004_card_status() == 1)
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{
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#ifdef BSP_SDC_IRQ_CARD_REMOVE
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ft2004_card_remove_check(0, RT_NULL); /* Clear removal flag bit */
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#endif
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if (_sdcard_mount() == RT_EOK)
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{
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state = 1;
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}
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else
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{
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/* For the critical case of frequent plug */
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rt_kprintf("dfs_unmount \r\n");
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_sdcard_unmount();
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ft2004_sdctrl_reset();
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}
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}
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else
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{
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rt_thread_mdelay(100);
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}
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break;
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case 1:
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#ifdef BSP_SDC_IRQ_CARD_REMOVE
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if (ft2004_card_remove_check(RT_WAITING_FOREVER, &status) == RT_EOK)
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{
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if (status & SDCTR_CARD_REMOVE_FLG)
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{
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state = 0;
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_sdcard_unmount();
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}
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}
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#else
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if (ft2004_card_status() == 0)
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{
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state = 0;
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_sdcard_unmount();
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}
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#endif
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else
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{
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rt_thread_mdelay(100);
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}
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break;
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default:
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state = 0;
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break;
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}
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}
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}
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int ft2004_sdcard_mount(void)
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{
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rt_thread_t tid;
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tid = rt_thread_create("sd_mount", sd_mount, RT_NULL,
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8192, 2, 20);
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if (tid != RT_NULL)
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{
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rt_thread_startup(tid);
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}
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else
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{
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LOG_E("create sd_mount thread err!");
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}
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return RT_EOK;
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}
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INIT_APP_EXPORT(ft2004_sdcard_mount);
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#endif /* BSP_USING_SDCARD */
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