644 lines
15 KiB
C
644 lines
15 KiB
C
/**************************************************************************//**
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*
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* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
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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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* 2020-2-7 Wayne First version
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*
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******************************************************************************/
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#include <rtconfig.h>
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#if defined(BSP_USING_SDH)
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#include <rtdevice.h>
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#include <NuMicro.h>
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#include <drv_pdma.h>
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#include <string.h>
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#if defined(RT_USING_DFS)
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#include <dfs_fs.h>
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#include <dfs_posix.h>
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#endif
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/* Private define ---------------------------------------------------------------*/
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#if defined(NU_SDH_MOUNT_ON_ROOT)
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#if !defined(NU_SDH_MOUNTPOINT_SDH0)
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#define NU_SDH_MOUNTPOINT_SDH0 "/"
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#endif
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#if !defined(NU_SDH_MOUNTPOINT_SDH1)
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#define NU_SDH_MOUNTPOINT_SDH1 NU_SDH_MOUNTPOINT_SDH0"/sd1"
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#endif
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#else
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#if !defined(NU_SDH_MOUNTPOINT_ROOT)
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#define NU_SDH_MOUNTPOINT_ROOT "/mnt"
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#endif
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#endif
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#if !defined(NU_SDH_MOUNTPOINT_SDH0)
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#define NU_SDH_MOUNTPOINT_SDH0 NU_SDH_MOUNTPOINT_ROOT"/sd0"
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#endif
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#if !defined(NU_SDH_MOUNTPOINT_SDH1)
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#define NU_SDH_MOUNTPOINT_SDH1 NU_SDH_MOUNTPOINT_ROOT"/sd1"
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#endif
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#if defined(NU_SDH_USING_PDMA)
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#define NU_SDH_MEMCPY nu_pdma_memcpy
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#else
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#define NU_SDH_MEMCPY memcpy
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#endif
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enum
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{
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SDH_START = -1,
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#if defined(BSP_USING_SDH0)
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SDH0_IDX,
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#endif
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#if defined(BSP_USING_SDH1)
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SDH1_IDX,
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#endif
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SDH_CNT
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};
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#define SDH_BLOCK_SIZE 512ul
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#if defined(NU_SDH_HOTPLUG)
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#define NU_SDH_TID_STACK_SIZE 1024
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#endif
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#if defined(NU_SDH_HOTPLUG)
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enum
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{
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NU_SDH_CARD_DETECTED_SD0 = (1 << 0),
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NU_SDH_CARD_DETECTED_SD1 = (1 << 1),
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NU_SDH_CARD_EVENT_ALL = (NU_SDH_CARD_DETECTED_SD0 | NU_SDH_CARD_DETECTED_SD1)
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};
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#endif
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/* Private typedef --------------------------------------------------------------*/
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struct nu_sdh
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{
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struct rt_device dev;
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char *name;
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#if defined(NU_SDH_HOTPLUG)
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char *mounted_point;
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#endif
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SDH_T *base;
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uint32_t is_card_inserted;
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SDH_INFO_T *info;
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struct rt_semaphore lock;
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uint8_t *pbuf;
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};
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typedef struct nu_sdh *nu_sdh_t;
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#if defined(NU_SDH_HOTPLUG)
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static struct rt_thread sdh_tid;
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static rt_uint8_t sdh_stack[NU_SDH_TID_STACK_SIZE];
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#endif
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/* Private functions ------------------------------------------------------------*/
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static void nu_sdh_isr(nu_sdh_t sdh);
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static rt_err_t nu_sdh_init(rt_device_t dev);
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static rt_err_t nu_sdh_open(rt_device_t dev, rt_uint16_t oflag);
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static rt_err_t nu_sdh_close(rt_device_t dev);
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static rt_size_t nu_sdh_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t blk_nb);
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static rt_err_t nu_sdh_control(rt_device_t dev, int cmd, void *args);
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static int rt_hw_sdh_init(void);
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#if defined(NU_SDH_HOTPLUG)
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static rt_bool_t nu_sdh_hotplug_is_mounted(const char *mounting_path);
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static void sdh_hotplugger(void *param);
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static rt_err_t nu_sdh_hotplug_mount(nu_sdh_t sdh);
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static rt_err_t nu_sdh_hotplug_unmount(nu_sdh_t sdh);
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#endif
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/* Public functions -------------------------------------------------------------*/
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/* Private variables ------------------------------------------------------------*/
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static struct nu_sdh nu_sdh_arr [] =
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{
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#if defined(BSP_USING_SDH0)
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{
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.name = "sdh0",
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#if defined(NU_SDH_HOTPLUG)
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.mounted_point = NU_SDH_MOUNTPOINT_SDH0,
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#endif
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.base = SDH0,
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.info = &SD0,
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},
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#endif
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#if defined(BSP_USING_SDH1)
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{
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.name = "sdh1",
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#if defined(NU_SDH_HOTPLUG)
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.mounted_point = NU_SDH_MOUNTPOINT_SDH1,
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#endif
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.base = SDH1,
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.info = &SD1,
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},
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#endif
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{0}
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}; /* struct nu_sdh nu_sdh_arr [] */
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static struct rt_event sdh_event;
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static void nu_sdh_isr(nu_sdh_t sdh)
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{
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SDH_T *sdh_base = sdh->base;
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unsigned int volatile isr;
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unsigned int volatile ier;
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SDH_INFO_T *pSD = sdh->info;
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// FMI data abort interrupt
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if (sdh_base->GINTSTS & SDH_GINTSTS_DTAIF_Msk)
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{
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/* ResetAllEngine() */
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sdh_base->GCTL |= SDH_GCTL_GCTLRST_Msk;
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}
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//----- SD interrupt status
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isr = sdh_base->INTSTS;
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if (isr & SDH_INTSTS_BLKDIF_Msk)
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{
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// block down
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pSD->DataReadyFlag = TRUE;
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SDH_CLR_INT_FLAG(sdh_base, SDH_INTSTS_BLKDIF_Msk);
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}
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if (isr & SDH_INTSTS_CDIF_Msk) // card detect
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{
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#if defined(NU_SDH_HOTPLUG)
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if (sdh->base == SDH0)
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rt_event_send(&sdh_event, NU_SDH_CARD_DETECTED_SD0);
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else if (sdh->base == SDH1)
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rt_event_send(&sdh_event, NU_SDH_CARD_DETECTED_SD1);
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#endif
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/* Clear CDIF interrupt flag */
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SDH_CLR_INT_FLAG(sdh_base, SDH_INTSTS_CDIF_Msk);
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}
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// CRC error interrupt
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if (isr & SDH_INTSTS_CRCIF_Msk)
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{
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if (!(isr & SDH_INTSTS_CRC16_Msk))
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{
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/* CRC_16 error */
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// TODO: handle CRC 16 error
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}
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else if (!(isr & SDH_INTSTS_CRC7_Msk))
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{
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if (!pSD->R3Flag)
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{
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/* CRC_7 error */
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// TODO: handle CRC 7 error
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}
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}
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/* Clear CRCIF interrupt flag */
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SDH_CLR_INT_FLAG(sdh_base, SDH_INTSTS_CRCIF_Msk);
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}
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/* Data-in timeout */
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if (isr & SDH_INTSTS_DITOIF_Msk)
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{
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sdh_base->INTSTS |= SDH_INTSTS_DITOIF_Msk;
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}
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/* Response-in timeout interrupt */
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if (isr & SDH_INTSTS_RTOIF_Msk)
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{
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sdh_base->INTSTS |= SDH_INTSTS_RTOIF_Msk;
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}
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}
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#if defined(BSP_USING_SDH0)
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void SDH0_IRQHandler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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nu_sdh_isr(&nu_sdh_arr[SDH0_IDX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif
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#if defined(BSP_USING_SDH1)
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void SDH1_IRQHandler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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nu_sdh_isr(&nu_sdh_arr[SDH1_IDX]);
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/* leave interrupt */
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rt_interrupt_leave();
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}
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#endif
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/* RT-Thread Device Driver Interface */
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static rt_err_t nu_sdh_init(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_err_t nu_sdh_open(rt_device_t dev, rt_uint16_t oflag)
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{
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nu_sdh_t sdh = (nu_sdh_t)dev;
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RT_ASSERT(dev != RT_NULL);
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return (SDH_Probe(sdh->base) == 0) ? RT_EOK : -(RT_ERROR);
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}
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static rt_err_t nu_sdh_close(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_size_t nu_sdh_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t blk_nb)
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{
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rt_uint32_t ret = 0;
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nu_sdh_t sdh = (nu_sdh_t)dev;
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rt_err_t result;
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RT_ASSERT(dev != RT_NULL);
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RT_ASSERT(buffer != RT_NULL);
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result = rt_sem_take(&sdh->lock, RT_WAITING_FOREVER);
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RT_ASSERT(result == RT_EOK);
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/* Check alignment. */
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if (((uint32_t)buffer & 0x03) != 0)
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{
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/* Non-aligned. */
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uint32_t i;
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uint8_t *copy_buffer = (uint8_t *)buffer;
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sdh->pbuf = rt_malloc(SDH_BLOCK_SIZE);
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if (sdh->pbuf == RT_NULL)
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goto exit_nu_sdh_read;
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for (i = 0; i < blk_nb; i++)
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{
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/* Read to temp buffer from specified sector. */
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ret = SDH_Read(sdh->base, &sdh->pbuf[0], pos, 1);
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if (ret != Successful)
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goto exit_nu_sdh_read;
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/* Move to user's buffer */
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NU_SDH_MEMCPY((void *)copy_buffer, (void *)&sdh->pbuf[0], SDH_BLOCK_SIZE);
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pos ++;
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copy_buffer += SDH_BLOCK_SIZE;
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}
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}
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else
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{
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/* Read to user's buffer from specified sector. */
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ret = SDH_Read(sdh->base, (uint8_t *)buffer, pos, blk_nb);
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}
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exit_nu_sdh_read:
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if (sdh->pbuf)
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{
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rt_free(sdh->pbuf);
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sdh->pbuf = RT_NULL;
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}
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result = rt_sem_release(&sdh->lock);
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RT_ASSERT(result == RT_EOK);
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if (ret == Successful)
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return blk_nb;
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rt_kprintf("Read failed: %d, buffer 0x%08x\n", ret, buffer);
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rt_set_errno(-RT_ENOSYS);
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return 0;
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}
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static rt_size_t nu_sdh_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t blk_nb)
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{
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rt_uint32_t ret = 0;
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nu_sdh_t sdh = (nu_sdh_t)dev;
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rt_err_t result;
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RT_ASSERT(dev != RT_NULL);
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RT_ASSERT(buffer != RT_NULL);
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result = rt_sem_take(&sdh->lock, RT_WAITING_FOREVER);
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RT_ASSERT(result == RT_EOK);
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/* Check alignment. */
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if (((uint32_t)buffer & 0x03) != 0)
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{
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/* Non-aligned. */
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uint32_t i;
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uint8_t *copy_buffer = (uint8_t *)buffer;
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sdh->pbuf = rt_malloc(SDH_BLOCK_SIZE);
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if (sdh->pbuf == RT_NULL)
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goto exit_nu_sdh_write;
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for (i = 0; i < blk_nb; i++)
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{
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NU_SDH_MEMCPY((void *)&sdh->pbuf[0], copy_buffer, SDH_BLOCK_SIZE);
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ret = SDH_Write(sdh->base, (uint8_t *)&sdh->pbuf[0], pos, 1);
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if (ret != Successful)
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goto exit_nu_sdh_write;
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pos++;
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copy_buffer += SDH_BLOCK_SIZE;
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}
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}
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else
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{
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/* Write to device directly. */
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ret = SDH_Write(sdh->base, (uint8_t *)buffer, pos, blk_nb);
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}
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exit_nu_sdh_write:
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if (sdh->pbuf)
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{
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rt_free(sdh->pbuf);
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sdh->pbuf = RT_NULL;
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}
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result = rt_sem_release(&sdh->lock);
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RT_ASSERT(result == RT_EOK);
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if (ret == Successful) return blk_nb;
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rt_kprintf("write failed: %d, buffer 0x%08x\n", ret, buffer);
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rt_set_errno(-RT_ENOSYS);
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return 0;
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}
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static rt_err_t nu_sdh_control(rt_device_t dev, int cmd, void *args)
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{
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nu_sdh_t sdh = (nu_sdh_t)dev;
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RT_ASSERT(dev != RT_NULL);
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if (cmd == RT_DEVICE_CTRL_BLK_GETGEOME)
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{
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SDH_INFO_T *sdh_info = sdh->info;
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struct rt_device_blk_geometry *geometry;
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geometry = (struct rt_device_blk_geometry *)args;
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if (geometry == RT_NULL) return -RT_ERROR;
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geometry->bytes_per_sector = sdh_info->sectorSize;
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geometry->block_size = sdh_info->sectorSize;
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geometry->sector_count = sdh_info->totalSectorN;
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}
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return RT_EOK;
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}
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static int rt_hw_sdh_init(void)
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{
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int i;
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rt_err_t ret = RT_EOK;
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rt_uint32_t flags = RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE;
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rt_event_init(&sdh_event, "sdh_event", RT_IPC_FLAG_FIFO);
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for (i = (SDH_START + 1); i < SDH_CNT; i++)
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{
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/* Register sdcard device */
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nu_sdh_arr[i].dev.type = RT_Device_Class_Block;
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nu_sdh_arr[i].dev.init = nu_sdh_init;
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nu_sdh_arr[i].dev.open = nu_sdh_open;
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nu_sdh_arr[i].dev.close = nu_sdh_close;
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nu_sdh_arr[i].dev.read = nu_sdh_read;
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nu_sdh_arr[i].dev.write = nu_sdh_write;
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nu_sdh_arr[i].dev.control = nu_sdh_control;
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/* Private */
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nu_sdh_arr[i].dev.user_data = (void *)&nu_sdh_arr[i];
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ret = rt_sem_init(&nu_sdh_arr[i].lock, "sdhlock", 1, RT_IPC_FLAG_FIFO);
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RT_ASSERT(ret == RT_EOK);
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SDH_Open(nu_sdh_arr[i].base, CardDetect_From_GPIO);
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nu_sdh_arr[i].pbuf = RT_NULL;
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ret = rt_device_register(&nu_sdh_arr[i].dev, nu_sdh_arr[i].name, flags);
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RT_ASSERT(ret == RT_EOK);
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}
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return (int)ret;
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}
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INIT_BOARD_EXPORT(rt_hw_sdh_init);
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#if defined(NU_SDH_HOTPLUG)
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static rt_bool_t nu_sdh_hotplug_is_mounted(const char *mounting_path)
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{
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rt_bool_t ret = RT_FALSE;
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#if defined(RT_USING_DFS)
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struct dfs_filesystem *psFS = dfs_filesystem_lookup(mounting_path);
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if (psFS == RT_NULL)
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{
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goto exit_nu_sdh_hotplug_is_mounted;
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}
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else if (!rt_memcmp(psFS->path, mounting_path, rt_strlen(mounting_path)))
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{
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ret = RT_TRUE;
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}
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else
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{
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ret = RT_FALSE;
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}
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#endif
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exit_nu_sdh_hotplug_is_mounted:
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return ret;
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}
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static rt_err_t nu_sdh_hotplug_mount(nu_sdh_t sdh)
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{
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rt_err_t ret = RT_ERROR;
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DIR *t;
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#if defined(RT_USING_DFS)
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if (nu_sdh_hotplug_is_mounted(sdh->mounted_point) == RT_TRUE)
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{
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ret = RT_EOK;
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goto exit_nu_sdh_hotplug_mount;
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}
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/* Check the SD folder path is valid. */
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if ((t = opendir(sdh->mounted_point)) != RT_NULL)
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{
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closedir(t);
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}
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#if !defined(NU_SDH_MOUNT_ON_ROOT)
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else
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{
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/* Check the ROOT path is valid. */
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if ((t = opendir(NU_SDH_MOUNTPOINT_ROOT)) != RT_NULL)
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{
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closedir(t);
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}
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else if ((ret = mkdir(NU_SDH_MOUNTPOINT_ROOT, 0)) != RT_EOK)
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{
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rt_kprintf("Failed to mkdir %s\n", NU_SDH_MOUNTPOINT_ROOT);
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goto exit_nu_sdh_hotplug_mount;
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}
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if ((ret = mkdir(sdh->mounted_point, 0)) != RT_EOK)
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{
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rt_kprintf("Failed to mkdir %s\n", sdh->mounted_point);
|
|
goto exit_nu_sdh_hotplug_mount;
|
|
}
|
|
|
|
} //else
|
|
#endif
|
|
|
|
if ((ret = dfs_mount(sdh->name, sdh->mounted_point, "elm", 0, 0)) == 0)
|
|
{
|
|
rt_kprintf("Mounted %s on %s\n", sdh->name, sdh->mounted_point);
|
|
}
|
|
else
|
|
{
|
|
rt_kprintf("Failed to mount %s on %s\n", sdh->name, sdh->mounted_point);
|
|
ret = RT_ERROR;
|
|
}
|
|
|
|
exit_nu_sdh_hotplug_mount:
|
|
|
|
#endif
|
|
return -(ret);
|
|
}
|
|
|
|
static rt_err_t nu_sdh_hotplug_unmount(nu_sdh_t sdh)
|
|
{
|
|
rt_err_t ret = RT_ERROR;
|
|
|
|
#if defined(RT_USING_DFS)
|
|
if (nu_sdh_hotplug_is_mounted(sdh->mounted_point) == RT_FALSE)
|
|
{
|
|
ret = RT_EOK;
|
|
goto exit_nu_sdh_hotplug_unmount;
|
|
}
|
|
|
|
ret = dfs_unmount(sdh->mounted_point);
|
|
if (ret != RT_EOK)
|
|
{
|
|
rt_kprintf("Failed to unmount %s.\n", sdh->mounted_point);
|
|
}
|
|
else
|
|
{
|
|
rt_kprintf("Succeed to unmount %s.\n", sdh->mounted_point);
|
|
ret = RT_EOK;
|
|
}
|
|
#endif
|
|
|
|
exit_nu_sdh_hotplug_unmount:
|
|
|
|
return -(ret);
|
|
}
|
|
|
|
static void nu_card_detector(nu_sdh_t sdh)
|
|
{
|
|
SDH_T *sdh_base = sdh->base;
|
|
unsigned int volatile isr = sdh_base->INTSTS;
|
|
if (isr & SDH_INTSTS_CDSTS_Msk)
|
|
{
|
|
/* Card removed */
|
|
sdh->info->IsCardInsert = FALSE; // SDISR_CD_Card = 1 means card remove for GPIO mode
|
|
rt_memset((void *)sdh->info, 0, sizeof(SDH_INFO_T));
|
|
nu_sdh_hotplug_unmount(sdh);
|
|
}
|
|
else
|
|
{
|
|
SDH_Open(sdh_base, CardDetect_From_GPIO);
|
|
if (!SDH_Probe(sdh_base))
|
|
{
|
|
/* Card inserted */
|
|
nu_sdh_hotplug_mount(sdh);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void sdh_hotplugger(void *param)
|
|
{
|
|
rt_uint32_t e;
|
|
int i;
|
|
|
|
for (i = (SDH_START + 1); i < SDH_CNT; i++)
|
|
{
|
|
if (SDH_IS_CARD_PRESENT(nu_sdh_arr[i].base))
|
|
{
|
|
nu_sdh_hotplug_mount(&nu_sdh_arr[i]);
|
|
}
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
if (rt_event_recv(&sdh_event, (NU_SDH_CARD_EVENT_ALL),
|
|
RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR,
|
|
RT_WAITING_FOREVER, &e) == RT_EOK)
|
|
{
|
|
/* Debounce */
|
|
rt_thread_delay(200);
|
|
switch (e)
|
|
{
|
|
#if defined(BSP_USING_SDH0)
|
|
case NU_SDH_CARD_DETECTED_SD0:
|
|
nu_card_detector(&nu_sdh_arr[SDH0_IDX]);
|
|
break;
|
|
#endif
|
|
#if defined(BSP_USING_SDH1)
|
|
case NU_SDH_CARD_DETECTED_SD1:
|
|
nu_card_detector(&nu_sdh_arr[SDH1_IDX]);
|
|
break;
|
|
#endif
|
|
default:
|
|
break;
|
|
|
|
} //switch(e)
|
|
|
|
} //if
|
|
|
|
} /* while(1) */
|
|
}
|
|
|
|
int mnt_init_sdcard_hotplug(void)
|
|
{
|
|
rt_err_t result;
|
|
|
|
result = rt_thread_init(&sdh_tid, "hotplug", sdh_hotplugger, NULL, sdh_stack, sizeof(sdh_stack), RT_THREAD_PRIORITY_MAX - 2, 10);
|
|
RT_ASSERT(result == RT_EOK);
|
|
|
|
rt_thread_startup(&sdh_tid);
|
|
|
|
return 0;
|
|
}
|
|
INIT_ENV_EXPORT(mnt_init_sdcard_hotplug);
|
|
#endif
|
|
|
|
#endif //#if defined(BSP_USING_SDH)
|