From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukasz Majewski Date: Tue, 24 Sep 2019 21:48:14 +0200 Subject: [U-Boot] [PATCH v2 3/6] dfu: mmc: rearrange the code In-Reply-To: <20190924131111.1691-4-m.szyprowski@samsung.com> References: <20190924131111.1691-1-m.szyprowski@samsung.com> <20190924131111.1691-4-m.szyprowski@samsung.com> Message-ID: <20190924214814.19913c80@jawa> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Marek, > Rename functions for bufferred file io operations to make them easier > to understand. Also add missing file offset argument to them > (currently unused). All this is a preparation to remove predefined > file size limit (CONFIG_SYS_DFU_MAX_FILE_SIZE) for DFU read/write > operations. Acked-by: Lukasz Majewski > > Signed-off-by: Marek Szyprowski > --- > drivers/dfu/dfu_mmc.c | 61 > ++++++++++++++++++++++++------------------- 1 file changed, 34 > insertions(+), 27 deletions(-) > > diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c > index 403fd5351d..2d97f4528c 100644 > --- a/drivers/dfu/dfu_mmc.c > +++ b/drivers/dfu/dfu_mmc.c > @@ -91,22 +91,8 @@ static int mmc_block_op(enum dfu_op op, struct > dfu_entity *dfu, return 0; > } > > -static int mmc_file_buffer(struct dfu_entity *dfu, void *buf, long > *len) -{ > - if (dfu_file_buf_len + *len > CONFIG_SYS_DFU_MAX_FILE_SIZE) { > - dfu_file_buf_len = 0; > - return -EINVAL; > - } > - > - /* Add to the current buffer. */ > - memcpy(dfu_file_buf + dfu_file_buf_len, buf, *len); > - dfu_file_buf_len += *len; > - > - return 0; > -} > - > static int mmc_file_op(enum dfu_op op, struct dfu_entity *dfu, > - void *buf, u64 *len) > + u64 offset, void *buf, u64 *len) > { > char dev_part_str[8]; > int ret; > @@ -137,7 +123,7 @@ static int mmc_file_op(enum dfu_op op, struct > dfu_entity *dfu, > switch (op) { > case DFU_OP_READ: > - ret = fs_read(dfu->name, (size_t)buf, 0, 0, &size); > + ret = fs_read(dfu->name, (size_t)buf, offset, 0, > &size); if (ret) { > puts("dfu: fs_read error!\n"); > return ret; > @@ -145,7 +131,7 @@ static int mmc_file_op(enum dfu_op op, struct > dfu_entity *dfu, *len = size; > break; > case DFU_OP_WRITE: > - ret = fs_write(dfu->name, (size_t)buf, 0, *len, > &size); > + ret = fs_write(dfu->name, (size_t)buf, offset, *len, > &size); if (ret) { > puts("dfu: fs_write error!\n"); > return ret; > @@ -166,6 +152,30 @@ static int mmc_file_op(enum dfu_op op, struct > dfu_entity *dfu, return ret; > } > > +static int mmc_file_buf_write(struct dfu_entity *dfu, u64 offset, > void *buf, long *len) +{ > + if (dfu_file_buf_len + *len > CONFIG_SYS_DFU_MAX_FILE_SIZE) { > + dfu_file_buf_len = 0; > + return -EINVAL; > + } > + > + /* Add to the current buffer. */ > + memcpy(dfu_file_buf + dfu_file_buf_len, buf, *len); > + dfu_file_buf_len += *len; > + > + return 0; > +} > + > +static int mmc_file_buf_write_finish(struct dfu_entity *dfu) > +{ > + int ret = mmc_file_op(DFU_OP_WRITE, dfu, 0, dfu_file_buf, > + &dfu_file_buf_len); > + > + /* Now that we're done */ > + dfu_file_buf_len = 0; > + return ret; > +} > + > int dfu_write_medium_mmc(struct dfu_entity *dfu, > u64 offset, void *buf, long *len) > { > @@ -177,7 +187,7 @@ int dfu_write_medium_mmc(struct dfu_entity *dfu, > break; > case DFU_FS_FAT: > case DFU_FS_EXT4: > - ret = mmc_file_buffer(dfu, buf, len); > + ret = mmc_file_buf_write(dfu, offset, buf, len); > break; > default: > printf("%s: Layout (%s) not (yet) supported!\n", > __func__, @@ -193,11 +203,7 @@ int dfu_flush_medium_mmc(struct > dfu_entity *dfu) > if (dfu->layout != DFU_RAW_ADDR) { > /* Do stuff here. */ > - ret = mmc_file_op(DFU_OP_WRITE, dfu, dfu_file_buf, > - &dfu_file_buf_len); > - > - /* Now that we're done */ > - dfu_file_buf_len = 0; > + ret = mmc_file_buf_write_finish(dfu); > } > > return ret; > @@ -214,7 +220,7 @@ int dfu_get_medium_size_mmc(struct dfu_entity > *dfu, u64 *size) case DFU_FS_FAT: > case DFU_FS_EXT4: > dfu_file_buf_filled = -1; > - ret = mmc_file_op(DFU_OP_SIZE, dfu, NULL, size); > + ret = mmc_file_op(DFU_OP_SIZE, dfu, 0, NULL, size); > if (ret < 0) > return ret; > if (*size > CONFIG_SYS_DFU_MAX_FILE_SIZE) > @@ -227,14 +233,15 @@ int dfu_get_medium_size_mmc(struct dfu_entity > *dfu, u64 *size) } > } > > -static int mmc_file_unbuffer(struct dfu_entity *dfu, u64 offset, > void *buf, + > +static int mmc_file_buf_read(struct dfu_entity *dfu, u64 offset, > void *buf, long *len) > { > int ret; > u64 file_len; > > if (dfu_file_buf_filled == -1) { > - ret = mmc_file_op(DFU_OP_READ, dfu, dfu_file_buf, > &file_len); > + ret = mmc_file_op(DFU_OP_READ, dfu, 0, dfu_file_buf, > &file_len); if (ret < 0) > return ret; > dfu_file_buf_filled = file_len; > @@ -259,7 +266,7 @@ int dfu_read_medium_mmc(struct dfu_entity *dfu, > u64 offset, void *buf, break; > case DFU_FS_FAT: > case DFU_FS_EXT4: > - ret = mmc_file_unbuffer(dfu, offset, buf, len); > + ret = mmc_file_buf_read(dfu, offset, buf, len); > break; > default: > printf("%s: Layout (%s) not (yet) supported!\n", > __func__, Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de -------------- next part -------------- A non-text attachment was scrubbed... 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