From eea4e6fe82fef9975e0153644935b89882890450 Mon Sep 17 00:00:00 2001 From: =?utf8?q?=C5=81ukasz=20Majewski?= Date: Fri, 21 Feb 2014 08:23:00 +0100 Subject: [PATCH] dfu: mmc: Replace calls to u-boot commands with native mmc API For some time we have been using the run_command() with properly crafted string. Such approach turned to be unreliable and error prone. Switch to "native" mmc subsystem API would allow better type checking and shall improve speed. Also, it seems that this API is changing less often than u-boot commands. The approach similar to env operations on the eMMC has been reused. Signed-off-by: Lukasz Majewski --- drivers/dfu/dfu_mmc.c | 31 ++++++++++++++++++++++++------- 1 file changed, 24 insertions(+), 7 deletions(-) diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c index 0816f46bad..651cfff5b3 100644 --- a/drivers/dfu/dfu_mmc.c +++ b/drivers/dfu/dfu_mmc.c @@ -12,6 +12,7 @@ #include #include #include +#include static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE) dfu_file_buf[CONFIG_SYS_DFU_MAX_FILE_SIZE]; @@ -20,8 +21,8 @@ static long dfu_file_buf_len; static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu, u64 offset, void *buf, long *len) { - char cmd_buf[DFU_CMD_BUF_SIZE]; - u32 blk_start, blk_count; + struct mmc *mmc = find_mmc_device(dfu->dev_num); + u32 blk_start, blk_count, n = 0; /* * We must ensure that we work in lba_blk_size chunks, so ALIGN @@ -38,12 +39,28 @@ static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu, return -EINVAL; } - sprintf(cmd_buf, "mmc %s %p %x %x", - op == DFU_OP_READ ? "read" : "write", - buf, blk_start, blk_count); + debug("%s: %s dev: %d start: %d cnt: %d buf: 0x%p\n", __func__, + op == DFU_OP_READ ? "MMC READ" : "MMC WRITE", dfu->dev_num, + blk_start, blk_count, buf); + switch (op) { + case DFU_OP_READ: + n = mmc->block_dev.block_read(dfu->dev_num, blk_start, + blk_count, buf); + break; + case DFU_OP_WRITE: + n = mmc->block_dev.block_write(dfu->dev_num, blk_start, + blk_count, buf); + break; + default: + error("Operation not supported\n"); + } - debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf); - return run_command(cmd_buf, 0); + if (n != blk_count) { + error("MMC operation failed"); + return -EIO; + } + + return 0; } static int mmc_file_buffer(struct dfu_entity *dfu, void *buf, long *len) -- 2.39.5