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63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/*
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* Copyright (c) 2023-2024, ArtInChip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Authors: zrq <ruiqi.zheng@artinchip.com>
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*/
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#include "aic_core.h"
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#ifdef AIC_SDMC1_USING_HOTPLUG
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#include <drivers/mmcsd_core.h>
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#include <dfs_fs.h>
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#define HOTPLUG_SDMC 1
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#define SD_CHECK_PIN (rt_pin_get(AIC_SDMC1_HOTPLUG_PIN))
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#define SD_DEVICE "sd0"
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extern void aic_mmcsd_change(u8 id);
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static void sd_hotplug_detection_thread(void *parameter)
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{
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rt_uint8_t re_sd_check_pin = 1;
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rt_device_t device;
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rt_thread_mdelay(500);
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while (1)
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{
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rt_thread_mdelay(200);
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if (re_sd_check_pin && (re_sd_check_pin = rt_pin_read(SD_CHECK_PIN)) == 0) {
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printf("card insertion detected!\n");
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device = rt_device_find(SD_DEVICE);
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if (device == NULL)
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aic_mmcsd_change(HOTPLUG_SDMC);
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}
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if (!re_sd_check_pin && (re_sd_check_pin = rt_pin_read(SD_CHECK_PIN)) != 0) {
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printf("card removal detected!\n");
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aic_mmcsd_change(HOTPLUG_SDMC);
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}
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}
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}
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int aic_sd_hotplug_detection(void)
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{
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rt_thread_t tid;
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rt_pin_mode(SD_CHECK_PIN, PIN_MODE_INPUT_PULLUP);
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tid = rt_thread_create("sd_hotplug_detection", sd_hotplug_detection_thread, RT_NULL,
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2048, RT_THREAD_PRIORITY_MAX - 2, 20);
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if (tid != RT_NULL)
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rt_thread_startup(tid);
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else
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printf("create sd_hotplug_detection thread err!\n");
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return RT_EOK;
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}
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INIT_LATE_APP_EXPORT(aic_sd_hotplug_detection);
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#endif
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