953 lines
26 KiB
C
Executable File
953 lines
26 KiB
C
Executable File
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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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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* 2011-07-25 weety first version
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*/
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#include <rtthread.h>
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#include <dfs_fs.h>
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#include <dfs_file.h>
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#include <drivers/mmcsd_core.h>
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#include <drivers/gpt.h>
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#define DBG_TAG "SDIO"
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#ifdef RT_SDIO_DEBUG
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#define DBG_LVL DBG_LOG
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#else
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#define DBG_LVL DBG_INFO
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#endif /* RT_SDIO_DEBUG */
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#include <rtdbg.h>
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static rt_list_t blk_devices = RT_LIST_OBJECT_INIT(blk_devices);
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#define BLK_MIN(a, b) ((a) < (b) ? (a) : (b))
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#define RT_DEVICE_CTRL_BLK_SSIZEGET 0x1268 /**< get number of bytes per sector */
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#define RT_DEVICE_CTRL_ALL_BLK_SSIZEGET 0x80081272 /**< get number of bytes per sector * sector counts*/
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struct mmcsd_blk_device
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{
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struct rt_mmcsd_card *card;
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rt_list_t list;
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struct rt_device dev;
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struct dfs_partition part;
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struct rt_device_blk_geometry geometry;
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rt_size_t max_req_size;
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};
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#ifndef RT_MMCSD_MAX_PARTITION
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#define RT_MMCSD_MAX_PARTITION 16
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#endif
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#define RT_GPT_PARTITION_MAX 128
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static int __send_status(struct rt_mmcsd_card *card, rt_uint32_t *status, unsigned retries)
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{
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int err;
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struct rt_mmcsd_cmd cmd;
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cmd.busy_timeout = 0;
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cmd.cmd_code = SEND_STATUS;
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cmd.arg = card->rca << 16;
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cmd.flags = RESP_R1 | CMD_AC;
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err = mmcsd_send_cmd(card->host, &cmd, retries);
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if (err)
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return err;
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if (status)
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*status = cmd.resp[0];
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return 0;
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}
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static int card_busy_detect(struct rt_mmcsd_card *card, unsigned int timeout_ms,
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rt_uint32_t *resp_errs)
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{
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int timeout = rt_tick_from_millisecond(timeout_ms);
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int err = 0;
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rt_uint32_t status;
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rt_tick_t start;
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start = rt_tick_get();
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do
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{
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rt_bool_t out = (int)(rt_tick_get() - start) > timeout;
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err = __send_status(card, &status, 5);
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if (err)
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{
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LOG_E("error %d requesting status", err);
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return err;
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}
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/* Accumulate any response error bits seen */
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if (resp_errs)
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*resp_errs |= status;
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if (out)
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{
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LOG_E("wait card busy timeout");
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return -RT_ETIMEOUT;
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}
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/*
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* Some cards mishandle the status bits,
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* so make sure to check both the busy
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* indication and the card state.
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*/
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}
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while (!(status & R1_READY_FOR_DATA) ||
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(R1_CURRENT_STATE(status) == 7));
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return err;
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}
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rt_int32_t mmcsd_num_wr_blocks(struct rt_mmcsd_card *card)
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{
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rt_int32_t err;
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rt_uint32_t blocks;
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struct rt_mmcsd_req req;
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struct rt_mmcsd_cmd cmd;
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struct rt_mmcsd_data data;
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rt_uint32_t timeout_us;
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rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
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cmd.cmd_code = APP_CMD;
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cmd.arg = card->rca << 16;
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cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_AC;
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err = mmcsd_send_cmd(card->host, &cmd, 0);
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if (err)
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return -RT_ERROR;
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if (!controller_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
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return -RT_ERROR;
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rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
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cmd.cmd_code = SD_APP_SEND_NUM_WR_BLKS;
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cmd.arg = 0;
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cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_ADTC;
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rt_memset(&data, 0, sizeof(struct rt_mmcsd_data));
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data.timeout_ns = card->tacc_ns * 100;
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data.timeout_clks = card->tacc_clks * 100;
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timeout_us = data.timeout_ns / 1000;
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timeout_us += data.timeout_clks * 1000 /
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(card->host->io_cfg.clock / 1000);
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if (timeout_us > 100000)
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{
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data.timeout_ns = 100000000;
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data.timeout_clks = 0;
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}
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data.blksize = 4;
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data.blks = 1;
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data.flags = DATA_DIR_READ;
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data.buf = &blocks;
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rt_memset(&req, 0, sizeof(struct rt_mmcsd_req));
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req.cmd = &cmd;
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req.data = &data;
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mmcsd_send_request(card->host, &req);
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if (cmd.err || data.err)
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return -RT_ERROR;
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return blocks;
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}
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static rt_err_t rt_mmcsd_req_blk(struct rt_mmcsd_card *card,
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rt_uint32_t sector,
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void *buf,
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rt_size_t blks,
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rt_uint8_t dir)
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{
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struct rt_mmcsd_cmd cmd, stop;
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struct rt_mmcsd_data data;
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struct rt_mmcsd_req req;
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struct rt_mmcsd_host *host = card->host;
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rt_uint32_t r_cmd, w_cmd;
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mmcsd_host_lock(host);
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rt_memset(&req, 0, sizeof(struct rt_mmcsd_req));
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rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
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rt_memset(&stop, 0, sizeof(struct rt_mmcsd_cmd));
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rt_memset(&data, 0, sizeof(struct rt_mmcsd_data));
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req.cmd = &cmd;
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req.data = &data;
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cmd.arg = sector;
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if (!(card->flags & CARD_FLAG_SDHC))
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{
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cmd.arg <<= 9;
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}
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cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_ADTC;
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data.blksize = SECTOR_SIZE;
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data.blks = blks;
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if (blks > 1)
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{
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if (!controller_is_spi(card->host) || !dir)
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{
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req.stop = &stop;
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stop.cmd_code = STOP_TRANSMISSION;
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stop.arg = 0;
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stop.flags = RESP_SPI_R1B | RESP_R1B | CMD_AC;
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}
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r_cmd = READ_MULTIPLE_BLOCK;
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w_cmd = WRITE_MULTIPLE_BLOCK;
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}
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else
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{
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req.stop = RT_NULL;
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r_cmd = READ_SINGLE_BLOCK;
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w_cmd = WRITE_BLOCK;
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}
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if (!controller_is_spi(card->host) && (card->flags & 0x8000))
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{
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/* last request is WRITE,need check busy */
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card_busy_detect(card, 10000, RT_NULL);
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}
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if (!dir)
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{
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cmd.cmd_code = r_cmd;
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data.flags |= DATA_DIR_READ;
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card->flags &= 0x7fff;
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}
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else
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{
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cmd.cmd_code = w_cmd;
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data.flags |= DATA_DIR_WRITE;
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card->flags |= 0x8000;
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}
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mmcsd_set_data_timeout(&data, card);
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data.buf = buf;
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mmcsd_send_request(host, &req);
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mmcsd_host_unlock(host);
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if (cmd.err || data.err || stop.err)
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{
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LOG_E("mmcsd request blocks error");
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LOG_E("%d,%d,%d, 0x%08x,0x%08x",
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cmd.err, data.err, stop.err, data.flags, sector);
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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static rt_err_t rt_mmcsd_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 rt_mmcsd_open(rt_device_t dev, rt_uint16_t oflag)
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{
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return RT_EOK;
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}
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static rt_err_t rt_mmcsd_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_err_t rt_mmcsd_control(rt_device_t dev, int cmd, void *args)
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{
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struct mmcsd_blk_device *blk_dev = (struct mmcsd_blk_device *)dev->user_data;
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switch (cmd)
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{
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case RT_DEVICE_CTRL_BLK_GETGEOME:
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rt_memcpy(args, &blk_dev->geometry, sizeof(struct rt_device_blk_geometry));
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break;
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case RT_DEVICE_CTRL_BLK_PARTITION:
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rt_memcpy(args, &blk_dev->part, sizeof(struct dfs_partition));
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break;
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case RT_DEVICE_CTRL_BLK_SSIZEGET:
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rt_memcpy(args, &blk_dev->geometry.bytes_per_sector, sizeof(rt_uint32_t));
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break;
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case RT_DEVICE_CTRL_ALL_BLK_SSIZEGET:
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{
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rt_uint64_t count_mul_per = blk_dev->geometry.bytes_per_sector * blk_dev->geometry.sector_count;
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rt_memcpy(args, &count_mul_per, sizeof(rt_uint64_t));
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}
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break;
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default:
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break;
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}
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return RT_EOK;
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}
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static rt_ssize_t rt_mmcsd_read(rt_device_t dev,
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rt_off_t pos,
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void *buffer,
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rt_size_t size)
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{
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rt_err_t err = 0;
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rt_size_t offset = 0;
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rt_size_t req_size = 0;
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rt_size_t remain_size = size;
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void *rd_ptr = (void *)buffer;
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struct mmcsd_blk_device *blk_dev = (struct mmcsd_blk_device *)dev->user_data;
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struct dfs_partition *part = &blk_dev->part;
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if (dev == RT_NULL)
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{
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rt_set_errno(-EINVAL);
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return 0;
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}
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rt_sem_take(part->lock, RT_WAITING_FOREVER);
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while (remain_size)
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{
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req_size = (remain_size > blk_dev->max_req_size) ? blk_dev->max_req_size : remain_size;
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err = rt_mmcsd_req_blk(blk_dev->card, part->offset + pos + offset, rd_ptr, req_size, 0);
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if (err)
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break;
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offset += req_size;
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rd_ptr = (void *)((rt_uint8_t *)rd_ptr + (req_size << 9));
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remain_size -= req_size;
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}
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rt_sem_release(part->lock);
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/* the length of reading must align to SECTOR SIZE */
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if (err)
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{
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rt_set_errno(-EIO);
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return 0;
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}
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return size - remain_size;
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}
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static rt_ssize_t rt_mmcsd_write(rt_device_t dev,
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rt_off_t pos,
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const void *buffer,
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rt_size_t size)
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{
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rt_err_t err = 0;
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rt_size_t offset = 0;
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rt_size_t req_size = 0;
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rt_size_t remain_size = size;
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void *wr_ptr = (void *)buffer;
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struct mmcsd_blk_device *blk_dev = (struct mmcsd_blk_device *)dev->user_data;
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struct dfs_partition *part = &blk_dev->part;
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if (dev == RT_NULL)
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{
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rt_set_errno(-EINVAL);
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return 0;
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}
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rt_sem_take(part->lock, RT_WAITING_FOREVER);
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while (remain_size)
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{
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req_size = (remain_size > blk_dev->max_req_size) ? blk_dev->max_req_size : remain_size;
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err = rt_mmcsd_req_blk(blk_dev->card, part->offset + pos + offset, wr_ptr, req_size, 1);
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if (err)
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break;
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offset += req_size;
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wr_ptr = (void *)((rt_uint8_t *)wr_ptr + (req_size << 9));
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remain_size -= req_size;
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}
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rt_sem_release(part->lock);
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/* the length of reading must align to SECTOR SIZE */
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if (err)
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{
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rt_set_errno(-EIO);
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return 0;
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}
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return size - remain_size;
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}
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static rt_int32_t mmcsd_set_blksize(struct rt_mmcsd_card *card)
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{
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struct rt_mmcsd_cmd cmd;
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int err;
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/* Block-addressed cards ignore MMC_SET_BLOCKLEN. */
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if (card->flags & CARD_FLAG_SDHC)
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return 0;
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mmcsd_host_lock(card->host);
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cmd.cmd_code = SET_BLOCKLEN;
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cmd.arg = 512;
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cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_AC;
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err = mmcsd_send_cmd(card->host, &cmd, 5);
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mmcsd_host_unlock(card->host);
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if (err)
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{
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LOG_E("MMCSD: unable to set block size to %d: %d", cmd.arg, err);
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return -RT_ERROR;
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}
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return 0;
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}
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rt_int32_t read_lba(struct rt_mmcsd_card *card, size_t lba, uint8_t *buffer, size_t count)
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{
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rt_uint8_t status = 0;
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status = mmcsd_set_blksize(card);
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if (status)
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{
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return status;
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}
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rt_thread_mdelay(1);
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status = rt_mmcsd_req_blk(card, lba, buffer, count, 0);
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return status;
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}
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#ifdef RT_USING_DEVICE_OPS
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const static struct rt_device_ops mmcsd_blk_ops =
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{
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rt_mmcsd_init,
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rt_mmcsd_open,
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rt_mmcsd_close,
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rt_mmcsd_read,
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rt_mmcsd_write,
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rt_mmcsd_control
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};
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#endif
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#ifdef RT_USING_DFS_V2
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static ssize_t rt_mmcsd_fops_read(struct dfs_file *file, void *buf, size_t count, off_t *pos)
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{
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int result = 0;
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rt_device_t dev = (rt_device_t)file->vnode->data;
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struct mmcsd_blk_device *blk_dev = (struct mmcsd_blk_device *)dev->user_data;
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int bytes_per_sector = blk_dev->geometry.bytes_per_sector;
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int blk_pos = *pos / bytes_per_sector;
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int first_offs = *pos % bytes_per_sector;
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char *rbuf;
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int rsize = 0;
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rbuf = rt_malloc(bytes_per_sector);
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if (!rbuf)
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{
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return 0;
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}
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/*
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** #1: read first unalign block size.
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*/
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result = rt_mmcsd_read(dev, blk_pos, rbuf, 1);
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if (result != 1)
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{
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rt_free(rbuf);
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return 0;
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}
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if (count > bytes_per_sector - first_offs)
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{
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rsize = bytes_per_sector - first_offs;
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}
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else
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{
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rsize = count;
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}
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rt_memcpy(buf, rbuf + first_offs, rsize);
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blk_pos++;
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/*
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** #2: read continuous block size.
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*/
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while (rsize < count)
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{
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result = rt_mmcsd_read(dev, blk_pos++, rbuf, 1);
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if (result != 1)
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{
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break;
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}
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if (count - rsize >= bytes_per_sector)
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{
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rt_memcpy(buf + rsize, rbuf, bytes_per_sector);
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rsize += bytes_per_sector;
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}
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else
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{
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rt_memcpy(buf + rsize, rbuf, count - rsize);
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rsize = count;
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}
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}
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rt_free(rbuf);
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*pos += rsize;
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return rsize;
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}
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static int rt_mmcsd_fops_ioctl(struct dfs_file *file, int cmd, void *arg)
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{
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rt_device_t dev = (rt_device_t)file->vnode->data;
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return rt_mmcsd_control(dev,cmd,arg);
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}
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static int rt_mmcsd_fops_open(struct dfs_file *file)
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{
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rt_device_t dev = (rt_device_t)file->vnode->data;
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rt_mmcsd_control(dev, RT_DEVICE_CTRL_ALL_BLK_SSIZEGET, &file->vnode->size);
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return RT_EOK;
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}
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static int rt_mmcsd_fops_close(struct dfs_file *file)
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{
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return RT_EOK;
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}
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static ssize_t rt_mmcsd_fops_write(struct dfs_file *file, const void *buf, size_t count, off_t *pos)
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{
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int result = 0;
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rt_device_t dev = (rt_device_t)file->vnode->data;
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struct mmcsd_blk_device *blk_dev = (struct mmcsd_blk_device *)dev->user_data;
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int bytes_per_sector = blk_dev->geometry.bytes_per_sector;
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int blk_pos = *pos / bytes_per_sector;
|
|
int first_offs = *pos % bytes_per_sector;
|
|
char *rbuf = 0;
|
|
int wsize = 0;
|
|
|
|
/*
|
|
** #1: write first unalign block size.
|
|
*/
|
|
if (first_offs != 0)
|
|
{
|
|
if (count > bytes_per_sector - first_offs)
|
|
{
|
|
wsize = bytes_per_sector - first_offs;
|
|
}
|
|
else
|
|
{
|
|
wsize = count;
|
|
}
|
|
|
|
rbuf = rt_malloc(bytes_per_sector);
|
|
if (!rbuf)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
result = rt_mmcsd_read(dev, blk_pos, rbuf, 1);
|
|
if (result != 1)
|
|
{
|
|
rt_free(rbuf);
|
|
return 0;
|
|
}
|
|
|
|
rt_memcpy(rbuf + first_offs, buf, wsize);
|
|
result = rt_mmcsd_write(dev, blk_pos, rbuf, 1);
|
|
if (result != 1)
|
|
{
|
|
rt_free(rbuf);
|
|
return 0;
|
|
}
|
|
rt_free(rbuf);
|
|
blk_pos += 1;
|
|
}
|
|
|
|
/*
|
|
** #2: write continuous block size.
|
|
*/
|
|
if ((count - wsize) / bytes_per_sector != 0)
|
|
{
|
|
result = rt_mmcsd_write(dev, blk_pos, buf + wsize, (count - wsize) / bytes_per_sector);
|
|
wsize += result * bytes_per_sector;
|
|
blk_pos += result;
|
|
if (result != (count - wsize) / bytes_per_sector)
|
|
{
|
|
*pos += wsize;
|
|
return wsize;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** # 3: write last unalign block size.
|
|
*/
|
|
if ((count - wsize) != 0)
|
|
{
|
|
rbuf = rt_malloc(bytes_per_sector);
|
|
if (rbuf != RT_NULL)
|
|
{
|
|
result = rt_mmcsd_read(dev, blk_pos, rbuf, 1);
|
|
if (result == 1)
|
|
{
|
|
rt_memcpy(rbuf, buf + wsize, count - wsize);
|
|
result = rt_mmcsd_write(dev, blk_pos, rbuf, 1);
|
|
if (result == 1)
|
|
{
|
|
wsize += count - wsize;
|
|
}
|
|
}
|
|
|
|
rt_free(rbuf);
|
|
}
|
|
}
|
|
|
|
*pos += wsize;
|
|
return wsize;
|
|
}
|
|
|
|
static int rt_mmcsd_fops_poll(struct dfs_file *file, struct rt_pollreq *req)
|
|
{
|
|
int mask = 0;
|
|
|
|
return mask;
|
|
}
|
|
|
|
static int rt_mmcsd_fops_flush(struct dfs_file *file)
|
|
{
|
|
return RT_EOK;
|
|
}
|
|
|
|
const static struct dfs_file_ops mmcsd_blk_fops =
|
|
{
|
|
rt_mmcsd_fops_open,
|
|
rt_mmcsd_fops_close,
|
|
rt_mmcsd_fops_ioctl,
|
|
rt_mmcsd_fops_read,
|
|
rt_mmcsd_fops_write,
|
|
rt_mmcsd_fops_flush,
|
|
generic_dfs_lseek,
|
|
RT_NULL,
|
|
RT_NULL,
|
|
rt_mmcsd_fops_poll
|
|
};
|
|
#endif
|
|
|
|
rt_int32_t gpt_device_probe(struct rt_mmcsd_card *card)
|
|
{
|
|
rt_int32_t err = RT_EOK;
|
|
rt_uint8_t i, status;
|
|
char dname[10];
|
|
char sname[16];
|
|
struct mmcsd_blk_device *blk_dev = RT_NULL;
|
|
|
|
blk_dev = rt_calloc(1, sizeof(struct mmcsd_blk_device));
|
|
if (!blk_dev)
|
|
{
|
|
LOG_E("mmcsd:malloc memory failed!");
|
|
return -1;
|
|
}
|
|
|
|
blk_dev->max_req_size = BLK_MIN((card->host->max_dma_segs *
|
|
card->host->max_seg_size) >> 9,
|
|
(card->host->max_blk_count *
|
|
card->host->max_blk_size) >> 9);
|
|
blk_dev->part.offset = 0;
|
|
blk_dev->part.size = 0;
|
|
rt_snprintf(sname, sizeof(sname) - 1, "sem_%s%d", card->host->name, 0);
|
|
blk_dev->part.lock = rt_sem_create(sname, 1, RT_IPC_FLAG_FIFO);
|
|
/* register mmcsd device */
|
|
blk_dev->dev.type = RT_Device_Class_Block;
|
|
#ifdef RT_USING_DEVICE_OPS
|
|
blk_dev->dev.ops = &mmcsd_blk_ops;
|
|
#else
|
|
blk_dev->dev.init = rt_mmcsd_init;
|
|
blk_dev->dev.open = rt_mmcsd_open;
|
|
blk_dev->dev.close = rt_mmcsd_close;
|
|
blk_dev->dev.read = rt_mmcsd_read;
|
|
blk_dev->dev.write = rt_mmcsd_write;
|
|
blk_dev->dev.control = rt_mmcsd_control;
|
|
#endif
|
|
blk_dev->card = card;
|
|
|
|
blk_dev->geometry.bytes_per_sector = 1 << 9;
|
|
blk_dev->geometry.block_size = card->card_blksize;
|
|
blk_dev->geometry.sector_count =
|
|
card->card_capacity * (1024 / 512);
|
|
|
|
blk_dev->dev.user_data = blk_dev;
|
|
|
|
rt_device_register(&(blk_dev->dev), card->host->name,
|
|
RT_DEVICE_FLAG_RDWR);
|
|
#ifdef RT_USING_POSIX_DEVIO
|
|
#ifdef RT_USING_DFS_V2
|
|
blk_dev->dev.fops = &mmcsd_blk_fops;
|
|
#endif
|
|
#endif
|
|
rt_list_insert_after(&blk_devices, &blk_dev->list);
|
|
|
|
for (i = 0; i < RT_GPT_PARTITION_MAX; i++)
|
|
{
|
|
blk_dev = rt_calloc(1, sizeof(struct mmcsd_blk_device));
|
|
if (!blk_dev)
|
|
{
|
|
LOG_E("mmcsd:malloc memory failed!");
|
|
break;
|
|
}
|
|
blk_dev->max_req_size = BLK_MIN((card->host->max_dma_segs *
|
|
card->host->max_seg_size) >> 9,
|
|
(card->host->max_blk_count *
|
|
card->host->max_blk_size) >> 9);
|
|
|
|
/* get the first partition */
|
|
status = gpt_get_partition_param(card, &blk_dev->part, i);
|
|
if (status == RT_EOK)
|
|
{
|
|
rt_snprintf(dname, sizeof(dname) - 1, "%s%d", card->host->name, i);
|
|
rt_snprintf(sname, sizeof(sname) - 1, "sem_%s%d", card->host->name, i + 1);
|
|
blk_dev->part.lock = rt_sem_create(sname, 1, RT_IPC_FLAG_FIFO);
|
|
|
|
/* register mmcsd device */
|
|
blk_dev->dev.type = RT_Device_Class_Block;
|
|
#ifdef RT_USING_DEVICE_OPS
|
|
blk_dev->dev.ops = &mmcsd_blk_ops;
|
|
#else
|
|
blk_dev->dev.init = rt_mmcsd_init;
|
|
blk_dev->dev.open = rt_mmcsd_open;
|
|
blk_dev->dev.close = rt_mmcsd_close;
|
|
blk_dev->dev.read = rt_mmcsd_read;
|
|
blk_dev->dev.write = rt_mmcsd_write;
|
|
blk_dev->dev.control = rt_mmcsd_control;
|
|
#endif
|
|
blk_dev->card = card;
|
|
|
|
blk_dev->geometry.bytes_per_sector = 1 << 9;
|
|
blk_dev->geometry.block_size = card->card_blksize;
|
|
blk_dev->geometry.sector_count = blk_dev->part.size;
|
|
|
|
blk_dev->dev.user_data = blk_dev;
|
|
|
|
rt_device_register(&(blk_dev->dev), dname,
|
|
RT_DEVICE_FLAG_RDWR);
|
|
#ifdef RT_USING_POSIX_DEVIO
|
|
#ifdef RT_USING_DFS_V2
|
|
blk_dev->dev.fops = &mmcsd_blk_fops;
|
|
#endif
|
|
#endif
|
|
rt_list_insert_after(&blk_devices, &blk_dev->list);
|
|
}
|
|
else
|
|
{
|
|
rt_free(blk_dev);
|
|
blk_dev = RT_NULL;
|
|
break;
|
|
}
|
|
|
|
#ifdef RT_USING_DFS_MNTTABLE
|
|
if (blk_dev)
|
|
{
|
|
LOG_I("try to mount file system!");
|
|
/* try to mount file system on this block device */
|
|
dfs_mount_device(&(blk_dev->dev));
|
|
}
|
|
#endif
|
|
}
|
|
gpt_free();
|
|
|
|
return err;
|
|
}
|
|
|
|
rt_int32_t mbr_device_probe(struct rt_mmcsd_card *card)
|
|
{
|
|
rt_int32_t err = 0;
|
|
rt_uint8_t i, status;
|
|
rt_uint8_t *sector;
|
|
char dname[10];
|
|
char sname[16];
|
|
struct mmcsd_blk_device *blk_dev = RT_NULL;
|
|
|
|
err = mmcsd_set_blksize(card);
|
|
if (err)
|
|
{
|
|
return err;
|
|
}
|
|
rt_thread_mdelay(1);
|
|
/* get the first sector to read partition table */
|
|
sector = (rt_uint8_t *)rt_malloc(SECTOR_SIZE);
|
|
if (sector == RT_NULL)
|
|
{
|
|
LOG_E("allocate partition sector buffer failed!");
|
|
|
|
return -RT_ENOMEM;
|
|
}
|
|
|
|
status = rt_mmcsd_req_blk(card, 0, sector, 1, 0);
|
|
if (status == RT_EOK)
|
|
{
|
|
blk_dev = rt_calloc(1, sizeof(struct mmcsd_blk_device));
|
|
if (!blk_dev)
|
|
{
|
|
LOG_E("mmcsd:malloc memory failed!");
|
|
return -1;
|
|
}
|
|
blk_dev->max_req_size = BLK_MIN((card->host->max_dma_segs *
|
|
card->host->max_seg_size) >> 9,
|
|
(card->host->max_blk_count *
|
|
card->host->max_blk_size) >> 9);
|
|
blk_dev->part.offset = 0;
|
|
blk_dev->part.size = 0;
|
|
rt_snprintf(sname, sizeof(sname) - 1, "sem_%s%d", card->host->name, 0);
|
|
blk_dev->part.lock = rt_sem_create(sname, 1, RT_IPC_FLAG_FIFO);
|
|
/* register mmcsd device */
|
|
blk_dev->dev.type = RT_Device_Class_Block;
|
|
#ifdef RT_USING_DEVICE_OPS
|
|
blk_dev->dev.ops = &mmcsd_blk_ops;
|
|
#else
|
|
blk_dev->dev.init = rt_mmcsd_init;
|
|
blk_dev->dev.open = rt_mmcsd_open;
|
|
blk_dev->dev.close = rt_mmcsd_close;
|
|
blk_dev->dev.read = rt_mmcsd_read;
|
|
blk_dev->dev.write = rt_mmcsd_write;
|
|
blk_dev->dev.control = rt_mmcsd_control;
|
|
#endif
|
|
blk_dev->card = card;
|
|
|
|
blk_dev->geometry.bytes_per_sector = 1 << 9;
|
|
blk_dev->geometry.block_size = card->card_blksize;
|
|
blk_dev->geometry.sector_count =
|
|
card->card_capacity * (1024 / 512);
|
|
|
|
blk_dev->dev.user_data = blk_dev;
|
|
|
|
rt_device_register(&(blk_dev->dev), card->host->name,
|
|
RT_DEVICE_FLAG_RDWR);
|
|
rt_list_insert_after(&blk_devices, &blk_dev->list);
|
|
for (i = 0; i < RT_MMCSD_MAX_PARTITION; i++)
|
|
{
|
|
blk_dev = rt_calloc(1, sizeof(struct mmcsd_blk_device));
|
|
if (!blk_dev)
|
|
{
|
|
LOG_E("mmcsd:malloc memory failed!");
|
|
break;
|
|
}
|
|
blk_dev->max_req_size = BLK_MIN((card->host->max_dma_segs *
|
|
card->host->max_seg_size) >> 9,
|
|
(card->host->max_blk_count *
|
|
card->host->max_blk_size) >> 9);
|
|
|
|
/* get the first partition */
|
|
status = dfs_filesystem_get_partition(&blk_dev->part, sector, i);
|
|
if (status == RT_EOK)
|
|
{
|
|
rt_snprintf(dname, sizeof(dname) - 1, "%s%d", card->host->name, i);
|
|
rt_snprintf(sname, sizeof(sname) - 1, "sem_%s%d", card->host->name, i + 1);
|
|
blk_dev->part.lock = rt_sem_create(sname, 1, RT_IPC_FLAG_FIFO);
|
|
|
|
/* register mmcsd device */
|
|
blk_dev->dev.type = RT_Device_Class_Block;
|
|
#ifdef RT_USING_DEVICE_OPS
|
|
blk_dev->dev.ops = &mmcsd_blk_ops;
|
|
#else
|
|
blk_dev->dev.init = rt_mmcsd_init;
|
|
blk_dev->dev.open = rt_mmcsd_open;
|
|
blk_dev->dev.close = rt_mmcsd_close;
|
|
blk_dev->dev.read = rt_mmcsd_read;
|
|
blk_dev->dev.write = rt_mmcsd_write;
|
|
blk_dev->dev.control = rt_mmcsd_control;
|
|
#endif
|
|
blk_dev->card = card;
|
|
|
|
blk_dev->geometry.bytes_per_sector = 1 << 9;
|
|
blk_dev->geometry.block_size = card->card_blksize;
|
|
blk_dev->geometry.sector_count = blk_dev->part.size;
|
|
|
|
blk_dev->dev.user_data = blk_dev;
|
|
|
|
rt_device_register(&(blk_dev->dev), dname,
|
|
RT_DEVICE_FLAG_RDWR);
|
|
rt_list_insert_after(&blk_devices, &blk_dev->list);
|
|
}
|
|
else
|
|
{
|
|
rt_free(blk_dev);
|
|
blk_dev = RT_NULL;
|
|
break;
|
|
}
|
|
|
|
#ifdef RT_USING_DFS_MNTTABLE
|
|
if (blk_dev)
|
|
{
|
|
LOG_I("try to mount file system!");
|
|
/* try to mount file system on this block device */
|
|
dfs_mount_device(&(blk_dev->dev));
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LOG_E("read mmcsd first sector failed");
|
|
err = -RT_ERROR;
|
|
}
|
|
|
|
/* release sector buffer */
|
|
rt_free(sector);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
|
|
{
|
|
uint32_t err = 0;
|
|
|
|
LOG_D("probe mmcsd block device!");
|
|
if (check_gpt(card) != 0)
|
|
{
|
|
err = gpt_device_probe(card);
|
|
}
|
|
else
|
|
{
|
|
err = mbr_device_probe(card);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
void rt_mmcsd_blk_remove(struct rt_mmcsd_card *card)
|
|
{
|
|
rt_list_t *l, *n;
|
|
struct mmcsd_blk_device *blk_dev;
|
|
|
|
for (l = (&blk_devices)->next, n = l->next; l != &blk_devices; l = n, n = n->next)
|
|
{
|
|
blk_dev = (struct mmcsd_blk_device *)rt_list_entry(l, struct mmcsd_blk_device, list);
|
|
if (blk_dev->card == card)
|
|
{
|
|
/* unmount file system */
|
|
const char *mounted_path = dfs_filesystem_get_mounted_path(&(blk_dev->dev));
|
|
if (mounted_path)
|
|
{
|
|
dfs_unmount(mounted_path);
|
|
LOG_D("unmount file system %s for device %s.\r\n", mounted_path, blk_dev->dev.parent.name);
|
|
}
|
|
rt_sem_delete(blk_dev->part.lock);
|
|
rt_device_unregister(&blk_dev->dev);
|
|
rt_list_remove(&blk_dev->list);
|
|
rt_free(blk_dev);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function will initialize block device on the mmc/sd.
|
|
*
|
|
* @deprecated since 2.1.0, this function does not need to be invoked
|
|
* in the system initialization.
|
|
*/
|
|
int rt_mmcsd_blk_init(void)
|
|
{
|
|
/* nothing */
|
|
return 0;
|
|
}
|