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rt-thread-official/bsp/allwinner/libraries/drivers/sdmmc/drv_sdmmc.c

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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-10-29 JasonHu first version
*/
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <rtthread.h>
#ifdef BSP_USING_SDMMC
#include <typedef.h>
#include <kapi.h>
#include <init.h>
#include <blkpart.h>
#include <sdmmc/hal_sdhost.h>
#include <sdmmc/card.h>
#include <sdmmc/sys/sys_debug.h>
#include <sdmmc/sdmmc.h>
#include <sdmmc/sd_test.h>
#include <drv_sdmmc.h>
#include <dfs_file.h>
#include <unistd.h>
#include <stdio.h> /* rename() */
#include <sys/stat.h>
#include <sys/statfs.h> /* statfs() */
#include "partition.h"
#define DBG_LEVEL DBG_LOG
#define DBG_SECTION_NAME "drv-sdmmc"
#include <rtdbg.h>
#ifdef CONFIG_SUPPORT_SDMMC_CACHE
#include "sdmmc_cache.h"
#endif
// #define DETECT_BY_GPIO
#ifndef CONFIG_SDC_DMA_BUF_SIZE
#define SDC_ALIGN_DMA_BUF_SIZE (64 * 1024)
#else
#define SDC_ALIGN_DMA_BUF_SIZE (CONFIG_SDC_DMA_BUF_SIZE * 1024)
#endif
#define SDXC_MAX_TRANS_LEN SDC_ALIGN_DMA_BUF_SIZE
#ifndef ALIGN_DOWN
#define ALIGN_DOWN(size, align) ((size) & ~((align)-1))
#endif
#ifndef MIN
#define MIN(a, b) (a > b ? b : a)
#endif
static int _register_blk_part_device(rt_device_t dev, const char *dev_name)
{
uint8_t *mbr_buf = NULL;
int ret = 0;
int i = 0;
struct rt_partition *part_table;
int part_count = 0;
int alloc_part_count = 2;
/* NOTICE: get block geometry fisrt time here, then you can read/write sdmmc. */
struct dev_sdmmc *dev_sdmmc = (struct dev_sdmmc *)dev->user_data;
if (dev->control(dev, RT_DEVICE_CTRL_BLK_GETGEOME, &dev_sdmmc->geometry) != RT_EOK)
{
LOG_E("device get geometry failed!");
return -RT_EIO;
}
rt_kprintf("sdmmc bytes_per_secotr:%x, sector count:%x\n", dev_sdmmc->geometry.bytes_per_sector, dev_sdmmc->geometry.sector_count);
/*read the mbr*/
mbr_buf = rt_malloc(dev_sdmmc->geometry.bytes_per_sector);
if (!mbr_buf)
{
return -RT_ENOMEM;
}
rt_memset(mbr_buf, 0, dev_sdmmc->geometry.bytes_per_sector);
part_table = rt_malloc(sizeof(struct rt_partition) * alloc_part_count);
if (!part_table)
{
return -RT_ENOMEM;
}
if (dev->read(dev, 0, mbr_buf, 1) != 1)
{
LOG_E("device read mbr 1-sector failure\n");
ret = -RT_ERROR;
goto err;
}
for (i = 0;; i++)
{
rt_err_t status;
struct dfs_partition part;
status = dfs_filesystem_get_partition(&part, mbr_buf, i);
if (status != RT_EOK)
{
if (i == 0)
{
snprintf(part_table[0].name, 6, "sd%dp%d", dev_sdmmc->host_id, i);
part_table[0].offset = 8 * 1024 * 1024;
part_table[0].size = dev_sdmmc->geometry.bytes_per_sector * dev_sdmmc->geometry.sector_count - part_table[0].offset;
part_table[0].flags = PARTITION_WRITEABLE;
part_count = 1;
rt_kprintf("not found partition of mbr, construct sd0 at offset 8M, size:%p\n", part_table[0].size);
}
break;
}
else
{
if (part_count >= alloc_part_count)
{
rt_kprintf("part_count1:%d\n", part_count);
struct rt_partition *new_part_table;
alloc_part_count *= 2;
new_part_table = rt_realloc(part_table, alloc_part_count * sizeof(struct rt_partition));
if (new_part_table != RT_NULL)
{
part_table = new_part_table;
}
else
{
break;
}
}
rt_kprintf("found partition:sd%d of mbr at offset %p, size:%p\n", i, part.offset, part.size);
snprintf(part_table[part_count].name, 6, "sd%dp%d", dev_sdmmc->host_id, i);
part_table[part_count].offset = part.offset * dev_sdmmc->geometry.bytes_per_sector;
// rt_kprintf("bytes_per_sector:%d\n", dev_sdmmc->geometry.bytes_per_sector);
// rt_kprintf("part_table_offset:%d\n", part.offset * dev_sdmmc->geometry.bytes_per_sector);
part_table[part_count].size = part.size * dev_sdmmc->geometry.bytes_per_sector;
part_table[part_count].flags = PARTITION_WRITEABLE;
part_count++;
}
}
err:
if (part_count > 0)
{
ret = rt_partition_init(dev_name, part_table, part_count);
}
if (mbr_buf != NULL)
{
rt_free(mbr_buf);
}
if (ret != 0)
{
if (part_table != NULL)
{
rt_free(part_table);
}
}
return ret;
}
rt_err_t sdmmc_init(rt_device_t dev)
{
int ret = -1;
struct dev_sdmmc *dev_priv = (struct dev_sdmmc *)dev->user_data;
int host_id = dev_priv->host_id;
dev->flag |= RT_DEVICE_FLAG_ACTIVATED;
int32_t internal_card = 0x00;
SDC_InitTypeDef sdc_param = {0};
sdc_param.debug_mask = (ROM_INF_MASK |
ROM_WRN_MASK | ROM_ERR_MASK | ROM_ANY_MASK);
esCFG_GetKeyValue("sdcard_global", "internal_card", (int32_t *)&internal_card, 1);
if (((internal_card >> host_id) & 0x01) == 1)
{
sdc_param.cd_mode = CARD_ALWAYS_PRESENT;
LOG_D("cd_mode CARD_ALWAYS_PRESENT!");
}
else
{
#ifndef DETECT_BY_GPIO
sdc_param.cd_mode = CARD_ALWAYS_PRESENT;
#else
sdc_param.cd_mode = CARD_DETECT_BY_GPIO_IRQ;
#endif
}
sdc_param.cd_cb = &card_detect;
sdc_param.dma_use = 1;
if (mmc_test_init(host_id, &sdc_param, 1))
{
dev->flag &= ~RT_DEVICE_FLAG_ACTIVATED;
LOG_E("init sdmmc failed!");
return ret;
}
LOG_D("host_id =%d!", host_id);
/* wait timeout to sync with sdmmc init done */
int mdelay = 500;
while (!hal_sdc_init_timeout() && mdelay > 0)
{
rt_thread_mdelay(50);
mdelay -= 50;
}
return 0;
}
rt_err_t sdmmc_deinit(rt_device_t dev)
{
struct dev_sdmmc *dev_priv = (struct dev_sdmmc *)dev->user_data;
int host_id = dev_priv->host_id;
mmc_test_exit(host_id, host_id);
return 0;
}
static rt_ssize_t sdmmc_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
{
ssize_t ret, rsz, trsz, msz = 0;
struct rt_device_blk_geometry *geometry;
uint8_t *data = buffer;
struct dev_sdmmc *dev_priv = (struct dev_sdmmc *)dev->user_data;
struct mmc_card *card = mmc_card_open(dev_priv->host_id);
if (card == NULL)
{
LOG_E("mmc open fail");
return 0;
}
if (size == 0)
{
return 0;
}
// rt_kprintf("sd read, pos:%llu, blkcnt:%llu\n", pos, size);
geometry = &dev_priv->geometry;
if (pos >= geometry->sector_count)
{
LOG_E("read offset %lu over part sector %llu", pos, geometry->sector_count);
return 0;
}
if (pos + size > geometry->sector_count)
{
LOG_E("over limit: offset %lu + size %lu over %llu",
pos, size, geometry->sector_count);
return 0;
}
trsz = 0;
msz = SDXC_MAX_TRANS_LEN / geometry->bytes_per_sector;
while (size > 0)
{
if (size < msz)
{
rsz = size;
}
else
{
rsz = msz;
}
ret = mmc_block_read(card, data, pos, rsz);
if (ret)
{
LOG_E("read failed - %d", (int)ret);
break;
}
trsz += rsz;
size -= rsz;
data += rsz * geometry->bytes_per_sector;
pos += rsz;
}
mmc_card_close(dev_priv->host_id);
return trsz;
}
static rt_err_t sdmmc_open(rt_device_t dev, rt_uint16_t oflag)
{
return 0;
}
static rt_err_t sdmmc_close(rt_device_t dev)
{
return 0;
}
static rt_ssize_t sdmmc_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
int err = -1;
ssize_t ret, wsz, twsz, msz = 0;
struct rt_device_blk_geometry *geometry;
uint8_t *data = (uint8_t *)buffer;
struct dev_sdmmc *dev_priv = (struct dev_sdmmc *)dev->user_data;
struct mmc_card *card = mmc_card_open(dev_priv->host_id);
if (card == NULL)
{
LOG_E("mmc open fail");
return -EIO;
}
if (size == 0)
{
return 0;
}
geometry = &dev_priv->geometry;
if (pos >= geometry->sector_count)
{
LOG_E("read offset %lu over part size %llu", pos, geometry->sector_count);
return 0;
}
if (pos + size > geometry->sector_count)
{
LOG_E("over limit: offset %lu + size %lu over %llu",
pos, size, geometry->sector_count);
return 0;
}
twsz = 0;
msz = SDXC_MAX_TRANS_LEN / geometry->bytes_per_sector;
while (size > 0)
{
if (size < msz)
{
wsz = size;
}
else
{
wsz = msz;
}
ret = mmc_block_write(card, data, pos, wsz);
if (ret)
{
LOG_E("read failed - %d", (int)ret);
break;
}
twsz += wsz;
size -= wsz;
data += wsz * geometry->bytes_per_sector;
pos += wsz;
}
mmc_card_close(dev_priv->host_id);
return twsz;
}
static rt_err_t sdmmc_control(rt_device_t dev, int cmd, void *args)
{
int ret = -RT_ERROR;
struct rt_device_blk_geometry *geometry;
int flag = 0;
if (!dev)
{
return -EINVAL;
}
struct dev_sdmmc *dev_priv = (struct dev_sdmmc *)dev->user_data;
struct mmc_card *card = mmc_card_open(dev_priv->host_id);
if (!card)
{
return ret;
}
switch (cmd)
{
case BLOCK_DEVICE_CMD_ERASE_ALL:
break;
case BLOCK_DEVICE_CMD_ERASE_SECTOR:
break;
case BLOCK_DEVICE_CMD_GET_TOTAL_SIZE:
*(uint64_t *)args = card->csd.capacity * 1024ull;
ret = 0;
break;
case BLOCK_DEVICE_CMD_GET_PAGE_SIZE:
*(uint32_t *)args = 512;
ret = 0;
break;
case BLOCK_DEVICE_CMD_GET_BLOCK_SIZE:
*(uint32_t *)args = 512;
ret = 0;
break;
case RT_DEVICE_CTRL_BLK_GETGEOME:
geometry = (struct rt_device_blk_geometry *)args;
rt_memset(geometry, 0, sizeof(struct rt_device_blk_geometry));
geometry->block_size = 512;
geometry->bytes_per_sector = 512;
geometry->sector_count = (card->csd.capacity * 1024ull) / geometry->bytes_per_sector;
LOG_D("[sdmmc] getgeome: bytes_per_sector:%ld, block_size:%ld, sector_count:%ld",
geometry->bytes_per_sector, geometry->block_size, geometry->sector_count);
ret = RT_EOK;
break;
default:
break;
}
mmc_card_close(dev_priv->host_id);
return ret;
}
static int init_sdmmc_device(rt_device_t device, void *usr_data, char *dev_name)
{
int ret = -1;
device = rt_device_create(RT_Device_Class_Block, 0);
if (!device)
{
return ret;
}
device->init = sdmmc_init;
device->open = sdmmc_open;
device->close = sdmmc_close;
device->read = sdmmc_read;
device->write = sdmmc_write;
device->control = sdmmc_control;
device->user_data = usr_data;
ret = rt_device_register(device, dev_name, RT_DEVICE_FLAG_RDWR);
if (ret != RT_EOK)
{
rt_device_destroy(device);
return ret;
}
// int sdmmc_blkpart_init(const char *name);
// ret = sdmmc_blkpart_init(dev_name);
if (sdmmc_init(device))
{
LOG_E("sdmmc_init failed!");
return -1;
}
/* NOTICE: get block geometry fisrt time here, then you can read/write sdmmc. */
struct dev_sdmmc *dev_sdmmc = (struct dev_sdmmc *)device->user_data;
if (device->control(device, RT_DEVICE_CTRL_BLK_GETGEOME, &dev_sdmmc->geometry) != RT_EOK)
{
LOG_E("device get geometry failed!");
ret = -ENOSYS;
}
_register_blk_part_device(device, dev_name);
return ret;
}
static struct dev_sdmmc dev_sdmmc[SDMMC_CARD_NR];
int driver_sdmmc_init(void)
{
int ret = -1;
int i = 0;
rt_device_t device[SDMMC_CARD_NR];
int32_t used_card_no = 0x01;
char name[12];
ret = esCFG_GetKeyValue("sdcard_global", "used_card_no", (int32_t *)&used_card_no, 1);
if (ret)
{
used_card_no = 0x00;
LOG_E("get card no failed, card no: %d", used_card_no);
return ret;
}
for (i = 0; i < SDMMC_CARD_NR; ++i)
{
rt_sprintf(name, "sdmmc%d", i);
dev_sdmmc[i].host_id = i;
ret = init_sdmmc_device(device[i], (void *)&dev_sdmmc[i], name);
}
return ret;
}
void sd_mmc1_init(void)
{
rt_device_t device = NULL;
device = rt_device_find("sdmmc1");
sdmmc_init(device);
_register_blk_part_device(device, "sdmmc1");
}
void sd_mmc1_deinit(void)
{
rt_device_t device = NULL;
device = rt_device_find("sdmmc1");
sdmmc_deinit(device);
}
INIT_DEVICE_EXPORT(driver_sdmmc_init);
#endif
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