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https://gitee.com/Vancouver2017/luban-lite-t3e-pro.git
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83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/*
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* Copyright (c) 2023, 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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* zrq <ruiqi.zheng@artinchip.com>
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*/
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#include <aic_core.h>
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#include <aic_hal_gpio.h>
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#include <mmc.h>
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#ifdef LPKG_USING_DFS
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#include <dfs_fs.h>
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#ifdef LPKG_USING_DFS_ELMFAT
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#include <dfs_elm.h>
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#endif
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#endif
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#define SD_CHECK_PIN ("PC.6")
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irqreturn_t sdcard_detect_irq_handler(int irq, void *args)
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{
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u8 pin;
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u8 g, p;
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u32 value = 0;
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pin = hal_gpio_name2pin(SD_CHECK_PIN);
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g = GPIO_GROUP(pin);
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p = GPIO_GROUP_PIN(pin);
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hal_gpio_get_value(g, p, &value);
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hal_gpio_group_set_irq_stat(g, 0xFFFFFFFF);
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if (value) {
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printf("card removal detected!\n");
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mmc_deinit(1);
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#if defined(LPKG_USING_DFS_ELMFAT) && defined(AIC_SDMC_DRV)
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if (dfs_unmount("/sdcard") < 0)
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printf("Failed to umount sdmc with FatFS\n");
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#endif
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} else {
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printf("card insertion detected!\n");
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mmc_init(1);
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#if defined(LPKG_USING_DFS_ELMFAT) && defined(AIC_SDMC_DRV)
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if (dfs_mount("sdmc", "/sdcard", "elm", 0, (const void *)SDMC_DISK) < 0)
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printf("Failed to mount sdmc with FatFS\n");
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#endif
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}
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return IRQ_HANDLED;
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}
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void sdcard_detect_pin_init(void)
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{
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u8 pin;
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u8 g, p;
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pin = hal_gpio_name2pin(SD_CHECK_PIN);
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g = GPIO_GROUP(pin);
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p = GPIO_GROUP_PIN(pin);
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hal_gpio_set_func(g, p, 1);
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hal_gpio_set_debounce(g, p, 0xFFF);
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hal_gpio_set_bias_pull(g, p, PIN_PULL_UP);
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hal_gpio_direction_input(g, p);
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hal_gpio_set_irq_mode(g, p, PIN_IRQ_MODE_EDGE_BOTH);
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aicos_request_irq(GPIO_IRQn + g, sdcard_detect_irq_handler, 0, "pin_group", NULL);
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aicos_irq_enable(GPIO_IRQn + g);
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hal_gpio_enable_irq(g, p);
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}
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void sdcard_hotplug_init(void)
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{
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sdcard_detect_pin_init();
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}
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