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rt-thread/bsp/stm32/stm32mp157a-st-ev1/board/ports/drv_emmc.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-07-16 thread-liu first version
*/
#include "board.h"
#include "drv_emmc.h"
#include <dfs_fs.h>
#ifdef BSP_USING_EMMC
//#define DRV_DEBUG
//#define EMMC_RX_DUMP
//#define EMMC_TX_DUMP
#define DBG_TAG "drv.emmc"
#ifdef DRV_DEBUG
#define DBG_LVL DBG_LOG
#else
#define DBG_LVL DBG_INFO
#endif /* DRV_DEBUG */
#include <rtdbg.h>
static SD_HandleTypeDef hsd;
static struct rt_mmcsd_host *host;
#define SDIO_TX_RX_COMPLETE_TIMEOUT_LOOPS (100000)
#define RTHW_SDIO_LOCK(_sdio) rt_mutex_take(&_sdio->mutex, RT_WAITING_FOREVER)
#define RTHW_SDIO_UNLOCK(_sdio) rt_mutex_release(&_sdio->mutex);
struct sdio_pkg
{
struct rt_mmcsd_cmd *cmd;
void *buff;
rt_uint32_t flag;
};
struct rthw_sdio
{
struct rt_mmcsd_host *host;
struct stm32_sdio_des sdio_des;
struct rt_event event;
struct rt_mutex mutex;
struct sdio_pkg *pkg;
};
#define EMMC_BUFF_SIZE 4096
#define EMMC_BUFF_ADDR 0x2FFCB000
#if defined(__CC_ARM) || defined(__CLANG_ARM)
__attribute__((at(EMMC_BUFF_ADDR))) static rt_uint8_t cache_buf[EMMC_BUFF_SIZE];
#elif defined ( __GNUC__ )
static rt_uint8_t cache_buf[EMMC_BUFF_SIZE] __attribute__((section(".eMMCSection")));
#elif defined(__ICCARM__)
#pragma location = EMMC_BUFF_ADDR
__no_init static rt_uint8_t cache_buf[EMMC_BUFF_SIZE];
#endif
#if defined(EMMC_RX_DUMP) || defined(EMMC_TX_DUMP)
#define __is_print(ch) ((unsigned int)((ch) - ' ') < 127u - ' ')
static void dump_hex(const rt_uint8_t *ptr, rt_size_t buflen)
{
unsigned char *buf = (unsigned char *)ptr;
int i, j;
for (i = 0; i < buflen; i += 16)
{
rt_kprintf("%08X: ", i);
for (j = 0; j < 16; j++)
if (i + j < buflen)
rt_kprintf("%02X ", buf[i + j]);
else
rt_kprintf(" ");
rt_kprintf(" ");
for (j = 0; j < 16; j++)
if (i + j < buflen)
rt_kprintf("%c", __is_print(buf[i + j]) ? buf[i + j] : '.');
rt_kprintf("\n");
}
}
#endif
/**
* @brief This function get order from sdio.
* @param data
* @retval sdio order
*/
static int get_order(rt_uint32_t data)
{
int order = 0;
switch (data)
{
case 1:
order = 0;
break;
case 2:
order = 1;
break;
case 4:
order = 2;
break;
case 8:
order = 3;
break;
case 16:
order = 4;
break;
case 32:
order = 5;
break;
case 64:
order = 6;
break;
case 128:
order = 7;
break;
case 256:
order = 8;
break;
case 512:
order = 9;
break;
case 1024:
order = 10;
break;
case 2048:
order = 11;
break;
case 4096:
order = 12;
break;
case 8192:
order = 13;
break;
case 16384:
order = 14;
break;
default :
order = 0;
break;
}
return order;
}
/**
* @brief This function wait sdio cmd completed.
* @param sdio rthw_sdio
* @retval None
*/
static void rthw_sdio_wait_completed(struct rthw_sdio *sdio)
{
rt_uint32_t status;
struct rt_mmcsd_cmd *cmd = sdio->pkg->cmd;
struct rt_mmcsd_data *data = cmd->data;
struct stm32_sdio *hw_sdio = sdio->sdio_des.hw_sdio;
if (rt_event_recv(&sdio->event, 0xffffffff, RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR,
rt_tick_from_millisecond(5000), &status) != RT_EOK)
{
LOG_E("wait cmd completed timeout");
cmd->err = -RT_ETIMEOUT;
return;
}
if (sdio->pkg == RT_NULL)
{
return;
}
cmd->resp[0] = hw_sdio->resp1;
cmd->resp[1] = hw_sdio->resp2;
cmd->resp[2] = hw_sdio->resp3;
cmd->resp[3] = hw_sdio->resp4;
if (status & SDMMC_ERRORS)
{
if ((status & SDMMC_STA_CCRCFAIL) && (resp_type(cmd) & (RESP_R3 | RESP_R4)))
{
cmd->err = RT_EOK;
}
else
{
cmd->err = -RT_ERROR;
}
if (status & SDMMC_STA_CTIMEOUT)
{
cmd->err = -RT_ETIMEOUT;
}
if (status & SDMMC_STA_DCRCFAIL)
{
data->err = -RT_ERROR;
}
if (status & SDMMC_STA_DTIMEOUT)
{
data->err = -RT_ETIMEOUT;
}
if (cmd->err == RT_EOK)
{
LOG_D("sta:0x%08X [%08X %08X %08X %08X]", status, cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3]);
}
else
{
LOG_D("err:0x%08x, %s%s%s%s%s%s%s cmd:%d arg:0x%08x rw:%c len:%d blksize:%d",
status,
status & SDMMC_STA_CCRCFAIL ? "CCRCFAIL " : "",
status & SDMMC_STA_DCRCFAIL ? "DCRCFAIL " : "",
status & SDMMC_STA_CTIMEOUT ? "CTIMEOUT " : "",
status & SDMMC_STA_DTIMEOUT ? "DTIMEOUT " : "",
status & SDMMC_STA_TXUNDERR ? "TXUNDERR " : "",
status & SDMMC_STA_RXOVERR ? "RXOVERR " : "",
status == 0 ? "NULL" : "",
cmd->cmd_code,
cmd->arg,
data ? (data->flags & DATA_DIR_WRITE ? 'w' : 'r') : '-',
data ? data->blks * data->blksize : 0,
data ? data->blksize : 0
);
}
}
else
{
cmd->err = RT_EOK;
LOG_D("sta:0x%08X [%08X %08X %08X %08X]", status, cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3]);
}
}
/**
* @brief This function send command.
* @param sdio rthw_sdio
* @param pkg sdio package
* @retval None
*/
static void rthw_sdio_send_command(struct rthw_sdio *sdio, struct sdio_pkg *pkg)
{
struct rt_mmcsd_cmd *cmd = pkg->cmd;
struct rt_mmcsd_data *data = cmd->data;
struct stm32_sdio *hw_sdio = sdio->sdio_des.hw_sdio;
rt_uint32_t reg_cmd;
sdio->pkg = pkg;
LOG_D("CMD:%d ARG:0x%08x RES:%s%s%s%s%s%s%s%s%s rw:%c len:%d blksize:%d\n",
cmd->cmd_code,
cmd->arg,
resp_type(cmd) == RESP_NONE ? "NONE" : "",
resp_type(cmd) == RESP_R1 ? "R1" : "",
resp_type(cmd) == RESP_R1B ? "R1B" : "",
resp_type(cmd) == RESP_R2 ? "R2" : "",
resp_type(cmd) == RESP_R3 ? "R3" : "",
resp_type(cmd) == RESP_R4 ? "R4" : "",
resp_type(cmd) == RESP_R5 ? "R5" : "",
resp_type(cmd) == RESP_R6 ? "R6" : "",
resp_type(cmd) == RESP_R7 ? "R7" : "",
data ? (data->flags & DATA_DIR_WRITE ? 'w' : 'r') : '-',
data ? data->blks * data->blksize : 0,
data ? data->blksize : 0
);
/* config cmd reg */
reg_cmd = cmd->cmd_code | SDMMC_CMD_CPSMEN;
if (resp_type(cmd) == RESP_NONE)
{
reg_cmd |= SDMMC_RESPONSE_NO;
}
else if (resp_type(cmd) == RESP_R2)
{
reg_cmd |= SDMMC_RESPONSE_LONG;
}
else
{
reg_cmd |= SDMMC_RESPONSE_SHORT;
}
hw_sdio->mask |= SDIO_MASKR_ALL;
/* data pre configuration */
if (data != RT_NULL)
{
hw_sdio->dctrl = 0;
hw_sdio->mask &= ~(SDMMC_MASK_CMDRENDIE | SDMMC_MASK_CMDSENTIE);
reg_cmd |= SDMMC_CMD_CMDTRANS;
hw_sdio->dtimer = HW_SDIO_DATATIMEOUT;
hw_sdio->dlen = data->blks * data->blksize;
hw_sdio->dctrl = (get_order(data->blksize)<<4) | (data->flags & DATA_DIR_READ ? SDMMC_DCTRL_DTDIR : 0);
hw_sdio->idmabase0r = (rt_uint32_t)cache_buf;
hw_sdio->idmatrlr = SDMMC_ENABLE_IDMA_SINGLE_BUFF;
}
hw_sdio->arg = cmd->arg;
hw_sdio->cmd = reg_cmd;
/* wait completed */
rthw_sdio_wait_completed(sdio);
/* Waiting for data to be sent to completion */
if (data != RT_NULL)
{
volatile rt_uint32_t count = SDIO_TX_RX_COMPLETE_TIMEOUT_LOOPS;
while (count && (hw_sdio->sta & SDMMC_STA_DPSMACT))
{
count--;
}
if ((count == 0) || (hw_sdio->sta & SDMMC_ERRORS))
{
cmd->err = -RT_ERROR;
}
}
/* data post configuration */
if (data != RT_NULL)
{
if (data->flags & DATA_DIR_READ)
{
#if defined(EMMC_RX_DUMP)
rt_kprintf("\nEMMC Rx:\n");
dump_hex(cache_buf, data->blks * data->blksize);
#endif
rt_memcpy(data->buf, cache_buf, data->blks * data->blksize);
}
}
}
/**
* @brief This function send sdio request.
* @param sdio rthw_sdio
* @param req request
* @retval None
*/
static void rthw_sdio_request(struct rt_mmcsd_host *host, struct rt_mmcsd_req *req)
{
struct sdio_pkg pkg;
struct rthw_sdio *sdio = host->private_data;
struct rt_mmcsd_data *data;
RTHW_SDIO_LOCK(sdio);
if (req->cmd != RT_NULL)
{
rt_memset(&pkg, 0, sizeof(pkg));
data = req->cmd->data;
pkg.cmd = req->cmd;
if (data != RT_NULL)
{
rt_uint32_t size = data->blks * data->blksize;
RT_ASSERT(size <= SDIO_BUFF_SIZE);
if (data->flags & DATA_DIR_WRITE)
{
#if defined(EMMC_TX_DUMP)
rt_kprintf("\nEMMC Tx:\n");
dump_hex(cache_buf, data->blks * data->blksize);
#endif
rt_memcpy(cache_buf, data->buf, size);
}
}
rthw_sdio_send_command(sdio, &pkg);
}
if (req->stop != RT_NULL)
{
rt_memset(&pkg, 0, sizeof(pkg));
pkg.cmd = req->stop;
rthw_sdio_send_command(sdio, &pkg);
}
RTHW_SDIO_UNLOCK(sdio);
mmcsd_req_complete(sdio->host);
}
/**
* @brief This function interrupt process function.
* @param host rt_mmcsd_host
* @retval None
*/
void rthw_sdio_irq_process(struct rt_mmcsd_host *host)
{
struct rthw_sdio *sdio = host->private_data;
struct stm32_sdio *hw_sdio = sdio->sdio_des.hw_sdio;
rt_uint32_t intstatus = hw_sdio->sta;
/* clear irq flag*/
hw_sdio->icr = intstatus;
rt_event_send(&sdio->event, intstatus);
}
/**
* @brief This function config sdio.
* @param host rt_mmcsd_host
* @param io_cfg rt_mmcsd_io_cfg
* @retval None
*/
static void rthw_sdio_iocfg(struct rt_mmcsd_host *host, struct rt_mmcsd_io_cfg *io_cfg)
{
rt_uint32_t temp, clk_src;
rt_uint32_t clk = io_cfg->clock;
struct rthw_sdio *sdio = host->private_data;
struct stm32_sdio *hw_sdio = sdio->sdio_des.hw_sdio;
LOG_D("clk:%dK width:%s%s%s power:%s%s%s",
clk/1000,
io_cfg->bus_width == MMCSD_BUS_WIDTH_8 ? "8" : "",
io_cfg->bus_width == MMCSD_BUS_WIDTH_4 ? "4" : "",
io_cfg->bus_width == MMCSD_BUS_WIDTH_1 ? "1" : "",
io_cfg->power_mode == MMCSD_POWER_OFF ? "OFF" : "",
io_cfg->power_mode == MMCSD_POWER_UP ? "UP" : "",
io_cfg->power_mode == MMCSD_POWER_ON ? "ON" : ""
);
RTHW_SDIO_LOCK(sdio);
clk_src = EMMC_CLOCK_FREQ;
if (clk > 0)
{
if (clk > host->freq_max)
{
clk = host->freq_max;
}
temp = DIV_ROUND_UP(clk_src, 2 * clk);
if (temp > 0x3FF)
{
temp = 0x3FF;
}
}
if (io_cfg->bus_width == MMCSD_BUS_WIDTH_8)
{
temp |= SDMMC_BUS_WIDE_8B;
}
else if (io_cfg->bus_width == MMCSD_BUS_WIDTH_4)
{
temp |= SDMMC_BUS_WIDE_4B;
}
else
{
temp |= SDMMC_BUS_WIDE_1B;
}
hw_sdio->clkcr = temp;
if (io_cfg->power_mode == MMCSD_POWER_ON)
hw_sdio->power |= SDMMC_POWER_PWRCTRL;
RTHW_SDIO_UNLOCK(sdio);
}
static const struct rt_mmcsd_host_ops ops =
{
rthw_sdio_request,
rthw_sdio_iocfg,
RT_NULL,
RT_NULL,
};
/**
* @brief This function create mmcsd host.
* @param sdio_des stm32_sdio_des
* @retval rt_mmcsd_host
*/
struct rt_mmcsd_host *sdio_host_create(struct stm32_sdio_des *sdio_des)
{
struct rt_mmcsd_host *host;
struct rthw_sdio *sdio = RT_NULL;
if (sdio_des == RT_NULL)
{
return RT_NULL;
}
sdio = rt_malloc(sizeof(struct rthw_sdio));
if (sdio == RT_NULL)
{
LOG_E("malloc rthw_sdio fail");
return RT_NULL;
}
rt_memset(sdio, 0, sizeof(struct rthw_sdio));
host = mmcsd_alloc_host();
if (host == RT_NULL)
{
LOG_E("alloc host fail");
goto err;
}
rt_memcpy(&sdio->sdio_des, sdio_des, sizeof(struct stm32_sdio_des));
sdio->sdio_des.hw_sdio = (struct stm32_sdio *)EMMC_BASE_ADDRESS;
rt_event_init(&sdio->event, "sdio", RT_IPC_FLAG_FIFO);
rt_mutex_init(&sdio->mutex, "sdio", RT_IPC_FLAG_PRIO);
/* set host default attributes */
host->ops = &ops;
host->freq_min = 400 * 1000;
host->freq_max = EMMC_MAX_FREQ;
host->valid_ocr = 0X00FFFF80; /* The voltage range supported is 1.65v-3.6v */
host->flags = MMCSD_BUSWIDTH_8 | MMCSD_MUTBLKWRITE | MMCSD_SUP_HIGHSPEED;
host->max_seg_size = SDIO_BUFF_SIZE;
host->max_dma_segs = 1;
host->max_blk_size = 512;
host->max_blk_count = 512;
/* link up host and sdio */
sdio->host = host;
host->private_data = sdio;
/* ready to change */
mmcsd_change(host);
return host;
err:
if (sdio)
{
rt_free(sdio);
}
return RT_NULL;
}
void SDMMC2_IRQHandler(void)
{
rt_interrupt_enter();
/* Process All SDIO Interrupt Sources */
rthw_sdio_irq_process(host);
rt_interrupt_leave();
}
int rt_hw_sdio_init(void)
{
struct stm32_sdio_des sdio_des;
hsd.Instance = SDMMC2;
HAL_SD_MspInit(&hsd);
host = sdio_host_create(&sdio_des);
if (host == RT_NULL)
{
LOG_E("host create fail");
return RT_NULL;
}
return 0;
}
INIT_DEVICE_EXPORT(rt_hw_sdio_init);
#if defined(BSP_USING_EMMC_FS)
int mnt_init(void)
{
rt_device_t sd = RT_NULL;
#if defined(EMMC_RX_DUMP) || defined(EMMC_TX_DUMP)
rt_thread_delay(3000);
#else
rt_thread_delay(RT_TICK_PER_SECOND);
#endif
sd = rt_device_find("sd0");
if (sd == RT_NULL)
{
rt_kprintf("can't find emmc device!\n");
return RT_ERROR;
}
if (dfs_mount("sd0", "/", "elm", 0, 0) != 0)
{
rt_kprintf("file system mount failed!\n");
}
else
{
rt_kprintf("file system mount success!\n");
}
return 0;
}
INIT_APP_EXPORT(mnt_init);
#endif
#endif /* BSP_USING_SDMMC */
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