/* * 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 #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 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 */