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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
*
* Change Logs:
* Date Author Notes
* 2018-01-13 Liu2guang the first version.
*/
#include <rtthread.h>
#include <rtdevice.h>
#include "board.h"
#include "drv_sdcard.h"
#ifndef SDIO_CLK_DIV
#define SDIO_CLK_DIV 2
#endif
#define SDIO_TIMEOUT ((uint32_t)0x100000)
static SD_HandleTypeDef hsdcard;
static DMA_HandleTypeDef hdma;
static struct rt_semaphore sd_lock;
void SDIO_IRQHandler(void)
{
rt_interrupt_enter();
HAL_SD_IRQHandler(&hsdcard);
rt_interrupt_leave();
}
#if defined(USING_SD_RX_DMA) || defined(USING_SD_TX_DMA)
void DMA2_Channel4_5_IRQHandler(void)
{
rt_interrupt_enter();
HAL_DMA_IRQHandler(&hdma);
rt_interrupt_leave();
}
#endif
rt_err_t stm32_read_blocks(uint32_t *data, uint32_t addr, uint32_t num)
{
uint32_t timeout = 0;
HAL_SD_StateTypeDef state_return;
HAL_SD_CardStateTypeDef sd_card_state_return;
#if defined(USING_SD_RX_DMA) && defined(USING_SD_TX_DMA)
hdma.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma.Init.PeriphInc = DMA_PINC_DISABLE;
hdma.Init.MemInc = DMA_MINC_ENABLE;
HAL_DMA_DeInit(&hdma);
HAL_DMA_Init(&hdma);
#endif
#if defined(USING_SD_RX_DMA)
if (HAL_SD_ReadBlocks_DMA(&hsdcard, (uint8_t *)data, addr, num) != HAL_OK)
#else
if (HAL_SD_ReadBlocks(&hsdcard, (uint8_t *)data, addr, num, SDIO_TIMEOUT) != HAL_OK)
#endif
{
return RT_EIO;
}
do
{
state_return = HAL_SD_GetState(&hsdcard);
timeout++;
}
while ((HAL_SD_STATE_BUSY == state_return) && (SDIO_TIMEOUT > timeout));
if (HAL_SD_STATE_READY != state_return)
{
return RT_ERROR;
}
do
{
sd_card_state_return = HAL_SD_GetCardState(&hsdcard);
timeout++;
}
while ((HAL_SD_CARD_TRANSFER != sd_card_state_return) && (SDIO_TIMEOUT > timeout));
if (SDIO_TIMEOUT <= timeout)
{
return RT_ETIMEOUT;
}
return RT_EOK;
}
rt_err_t stm32_write_blocks(uint32_t *data, uint32_t addr, uint32_t num)
{
uint32_t timeout = 0;
HAL_SD_StateTypeDef state_return;
HAL_SD_CardStateTypeDef sd_card_state_return;
#if defined(USING_SD_RX_DMA) && defined(USING_SD_TX_DMA)
hdma.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma.Init.PeriphInc = DMA_MINC_ENABLE;
hdma.Init.MemInc = DMA_PINC_DISABLE;
HAL_DMA_DeInit(&hdma);
HAL_DMA_Init(&hdma);
#endif
#if defined(USING_SD_TX_DMA)
if (HAL_SD_WriteBlocks_DMA(&hsdcard, (uint8_t *)data, addr, num) != HAL_OK)
#else
if (HAL_SD_WriteBlocks(&hsdcard, (uint8_t *)data, addr, num, SDIO_TIMEOUT) != HAL_OK)
#endif
{
return RT_ERROR;
}
do
{
state_return = HAL_SD_GetState(&hsdcard);
timeout++;
}
while ((HAL_SD_STATE_BUSY == state_return) && (SDIO_TIMEOUT > timeout));
if (HAL_SD_STATE_READY != state_return)
{
return RT_ERROR;
}
do
{
sd_card_state_return = HAL_SD_GetCardState(&hsdcard);
timeout++;
}
while ((HAL_SD_CARD_TRANSFER != sd_card_state_return) && (SDIO_TIMEOUT > timeout));
if (SDIO_TIMEOUT <= timeout)
{
return RT_ETIMEOUT;
}
return RT_EOK;
}
static rt_err_t stm32_sdcard_init(rt_device_t dev)
{
GPIO_InitTypeDef GPIO_InitStruct;
if (rt_sem_init(&sd_lock, "sdlock", 1, RT_IPC_FLAG_FIFO) != RT_EOK)
{
return RT_ERROR;
}
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 |
GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_2;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
#if defined(USING_SD_RX_DMA) || defined(USING_SD_TX_DMA)
__HAL_RCC_DMA2_CLK_ENABLE();
hdma.Instance = DMA2_Channel4;
hdma.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
hdma.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
hdma.Init.Mode = DMA_NORMAL;
hdma.Init.Priority = DMA_PRIORITY_HIGH;
#if defined(USING_SD_RX_DMA)
hdma.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma.Init.PeriphInc = DMA_PINC_DISABLE;
hdma.Init.MemInc = DMA_MINC_ENABLE;
__HAL_LINKDMA(&hsdcard, hdmarx, hdma);
#endif
#if defined(USING_SD_TX_DMA)
hdma.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma.Init.PeriphInc = DMA_MINC_ENABLE;
hdma.Init.MemInc = DMA_PINC_DISABLE;
__HAL_LINKDMA(&hsdcard, hdmatx, hdma);
#endif
HAL_DMA_DeInit(&hdma);
if (HAL_DMA_Init(&hdma) != HAL_OK)
{
rt_kprintf("HAL_DMA_Init error\n");
return RT_EIO;
}
#endif
HAL_NVIC_SetPriority(DMA2_Channel4_5_IRQn, 3, 0);
HAL_NVIC_EnableIRQ(DMA2_Channel4_5_IRQn);
__HAL_RCC_SDIO_CLK_ENABLE();
hsdcard.Instance = SDIO;
hsdcard.Init.ClockEdge = SDIO_CLOCK_EDGE_RISING;
hsdcard.Init.ClockBypass = SDIO_CLOCK_BYPASS_DISABLE;
hsdcard.Init.ClockPowerSave = SDIO_CLOCK_POWER_SAVE_DISABLE;
hsdcard.Init.BusWide = SDIO_BUS_WIDE_1B;
hsdcard.Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_ENABLE;
hsdcard.Init.ClockDiv = SDIO_CLK_DIV;
HAL_SD_DeInit(&hsdcard);
if (HAL_SD_Init(&hsdcard) != HAL_OK)
{
rt_kprintf("HAL_SD_Init error\n");
return RT_EIO;
}
HAL_NVIC_SetPriority(SDIO_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(SDIO_IRQn);
if (HAL_SD_ConfigWideBusOperation(&hsdcard, SDIO_BUS_WIDE_4B) != HAL_OK)
{
rt_kprintf("HAL_SD_ConfigWideBusOperation error\n");
return RT_EIO;
}
return RT_EOK;
}
static rt_err_t stm32_sdcard_open(rt_device_t dev, rt_uint16_t oflag)
{
return RT_EOK;
}
static rt_err_t stm32_sdcard_close(rt_device_t dev)
{
return RT_EOK;
}
static rt_size_t stm32_sdcard_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
{
int ret = RT_EOK;
rt_sem_take(&sd_lock, RT_WAITING_FOREVER);
ret = stm32_read_blocks((uint32_t *)buffer, pos, size);
rt_sem_release(&sd_lock);
if (ret != RT_EOK)
{
return 0;
}
return size;
}
static rt_size_t stm32_sdcard_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
int ret = RT_EOK;
rt_sem_take(&sd_lock, RT_WAITING_FOREVER);
ret = stm32_write_blocks((uint32_t *)buffer, pos, size);
rt_sem_release(&sd_lock);
if (ret != RT_EOK)
{
return 0;
}
return size;
}
static rt_err_t stm32_sdcard_control(rt_device_t dev, int cmd, void *args)
{
RT_ASSERT(dev != RT_NULL);
// RT_DEVICE_CTRL_BLK_GETGEOME
if (cmd == RT_DEVICE_CTRL_BLK_GETGEOME)
{
HAL_SD_CardInfoTypeDef sdcard_info;
struct rt_device_blk_geometry *geometry;
HAL_SD_GetCardInfo(&hsdcard, &sdcard_info);
geometry = (struct rt_device_blk_geometry *)args;
geometry->bytes_per_sector = sdcard_info.BlockSize;
geometry->block_size = sdcard_info.BlockSize;
geometry->sector_count = sdcard_info.BlockNbr;
}
return RT_EOK;
}
static struct rt_device device;
int rt_hw_sdcard_init(void)
{
rt_err_t ret = RT_EOK;
device.type = RT_Device_Class_Block;
device.init = stm32_sdcard_init;
device.open = stm32_sdcard_open;
device.read = stm32_sdcard_read;
device.write = stm32_sdcard_write;
device.control = stm32_sdcard_control;
device.close = stm32_sdcard_close;
ret = rt_device_register(&device, "sd0",
RT_DEVICE_FLAG_REMOVABLE |
RT_DEVICE_FLAG_RDWR |
RT_DEVICE_FLAG_STANDALONE);
if (ret != RT_EOK)
{
return ret;
}
return RT_EOK;
}
INIT_DEVICE_EXPORT(rt_hw_sdcard_init);
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