mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
ea2453d56b
Previously we didn't support upload/download larger than available memory. This is pretty bad when you have to update your root filesystem for example. This patch removes that limitation (and the crashes when you transfered any file larger than 4MB) by making raw image writes be done in chunks and making file maximum size be configurable. The sequence number is a 16 bit counter; make sure we handle rollover correctly. This fixes the wrong transfers for large (> 256MB) images. Also utilize a variable to handle initialization, so that we don't rely on just the counter sent by the host. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com> Signed-off-by: Tom Rini <trini@ti.com>
249 lines
6.1 KiB
C
249 lines
6.1 KiB
C
/*
|
|
* dfu.c -- DFU back-end routines
|
|
*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* author: Lukasz Majewski <l.majewski@samsung.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <errno.h>
|
|
#include <div64.h>
|
|
#include <dfu.h>
|
|
|
|
enum dfu_mmc_op {
|
|
DFU_OP_READ = 1,
|
|
DFU_OP_WRITE,
|
|
};
|
|
|
|
static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE)
|
|
dfu_file_buf[CONFIG_SYS_DFU_MAX_FILE_SIZE];
|
|
static long dfu_file_buf_len;
|
|
|
|
static int mmc_block_op(enum dfu_mmc_op op, struct dfu_entity *dfu,
|
|
u64 offset, void *buf, long *len)
|
|
{
|
|
char cmd_buf[DFU_CMD_BUF_SIZE];
|
|
u32 blk_start, blk_count;
|
|
|
|
/*
|
|
* We must ensure that we work in lba_blk_size chunks, so ALIGN
|
|
* this value.
|
|
*/
|
|
*len = ALIGN(*len, dfu->data.mmc.lba_blk_size);
|
|
|
|
blk_start = dfu->data.mmc.lba_start +
|
|
(u32)lldiv(offset, dfu->data.mmc.lba_blk_size);
|
|
blk_count = *len / dfu->data.mmc.lba_blk_size;
|
|
if (blk_start + blk_count >
|
|
dfu->data.mmc.lba_start + dfu->data.mmc.lba_size) {
|
|
puts("Request would exceed designated area!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
sprintf(cmd_buf, "mmc %s %p %x %x",
|
|
op == DFU_OP_READ ? "read" : "write",
|
|
buf, blk_start, blk_count);
|
|
|
|
debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
|
|
return run_command(cmd_buf, 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_mmc_op op, struct dfu_entity *dfu,
|
|
void *buf, long *len)
|
|
{
|
|
char cmd_buf[DFU_CMD_BUF_SIZE];
|
|
char *str_env;
|
|
int ret;
|
|
|
|
switch (dfu->layout) {
|
|
case DFU_FS_FAT:
|
|
sprintf(cmd_buf, "fat%s mmc %d:%d 0x%x %s",
|
|
op == DFU_OP_READ ? "load" : "write",
|
|
dfu->data.mmc.dev, dfu->data.mmc.part,
|
|
(unsigned int) buf, dfu->name);
|
|
if (op == DFU_OP_WRITE)
|
|
sprintf(cmd_buf + strlen(cmd_buf), " %lx", *len);
|
|
break;
|
|
case DFU_FS_EXT4:
|
|
sprintf(cmd_buf, "ext4%s mmc %d:%d 0x%x /%s",
|
|
op == DFU_OP_READ ? "load" : "write",
|
|
dfu->data.mmc.dev, dfu->data.mmc.part,
|
|
(unsigned int) buf, dfu->name);
|
|
break;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
return -1;
|
|
}
|
|
|
|
debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
|
|
|
|
ret = run_command(cmd_buf, 0);
|
|
if (ret) {
|
|
puts("dfu: Read error!\n");
|
|
return ret;
|
|
}
|
|
|
|
if (dfu->layout != DFU_RAW_ADDR && op == DFU_OP_READ) {
|
|
str_env = getenv("filesize");
|
|
if (str_env == NULL) {
|
|
puts("dfu: Wrong file size!\n");
|
|
return -1;
|
|
}
|
|
*len = simple_strtoul(str_env, NULL, 16);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int dfu_write_medium_mmc(struct dfu_entity *dfu,
|
|
u64 offset, void *buf, long *len)
|
|
{
|
|
int ret = -1;
|
|
|
|
switch (dfu->layout) {
|
|
case DFU_RAW_ADDR:
|
|
ret = mmc_block_op(DFU_OP_WRITE, dfu, offset, buf, len);
|
|
break;
|
|
case DFU_FS_FAT:
|
|
case DFU_FS_EXT4:
|
|
ret = mmc_file_buffer(dfu, buf, len);
|
|
break;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int dfu_flush_medium_mmc(struct dfu_entity *dfu)
|
|
{
|
|
int ret = 0;
|
|
|
|
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;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int dfu_read_medium_mmc(struct dfu_entity *dfu, u64 offset, void *buf,
|
|
long *len)
|
|
{
|
|
int ret = -1;
|
|
|
|
switch (dfu->layout) {
|
|
case DFU_RAW_ADDR:
|
|
ret = mmc_block_op(DFU_OP_READ, dfu, offset, buf, len);
|
|
break;
|
|
case DFU_FS_FAT:
|
|
case DFU_FS_EXT4:
|
|
ret = mmc_file_op(DFU_OP_READ, dfu, buf, len);
|
|
break;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
|
|
{
|
|
int dev, part;
|
|
struct mmc *mmc;
|
|
block_dev_desc_t *blk_dev;
|
|
disk_partition_t partinfo;
|
|
char *st;
|
|
|
|
dfu->dev_type = DFU_DEV_MMC;
|
|
st = strsep(&s, " ");
|
|
if (!strcmp(st, "mmc")) {
|
|
dfu->layout = DFU_RAW_ADDR;
|
|
dfu->data.mmc.lba_start = simple_strtoul(s, &s, 16);
|
|
dfu->data.mmc.lba_size = simple_strtoul(++s, &s, 16);
|
|
dfu->data.mmc.lba_blk_size = get_mmc_blk_size(dfu->dev_num);
|
|
} else if (!strcmp(st, "fat")) {
|
|
dfu->layout = DFU_FS_FAT;
|
|
} else if (!strcmp(st, "ext4")) {
|
|
dfu->layout = DFU_FS_EXT4;
|
|
} else if (!strcmp(st, "part")) {
|
|
|
|
dfu->layout = DFU_RAW_ADDR;
|
|
|
|
dev = simple_strtoul(s, &s, 10);
|
|
s++;
|
|
part = simple_strtoul(s, &s, 10);
|
|
|
|
mmc = find_mmc_device(dev);
|
|
if (mmc == NULL || mmc_init(mmc)) {
|
|
printf("%s: could not find mmc device #%d!\n",
|
|
__func__, dev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
blk_dev = &mmc->block_dev;
|
|
if (get_partition_info(blk_dev, part, &partinfo) != 0) {
|
|
printf("%s: could not find partition #%d on mmc device #%d!\n",
|
|
__func__, part, dev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
dfu->data.mmc.lba_start = partinfo.start;
|
|
dfu->data.mmc.lba_size = partinfo.size;
|
|
dfu->data.mmc.lba_blk_size = partinfo.blksz;
|
|
|
|
} else {
|
|
printf("%s: Memory layout (%s) not supported!\n", __func__, st);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (dfu->layout == DFU_FS_EXT4 || dfu->layout == DFU_FS_FAT) {
|
|
dfu->data.mmc.dev = simple_strtoul(s, &s, 10);
|
|
dfu->data.mmc.part = simple_strtoul(++s, &s, 10);
|
|
}
|
|
|
|
dfu->read_medium = dfu_read_medium_mmc;
|
|
dfu->write_medium = dfu_write_medium_mmc;
|
|
dfu->flush_medium = dfu_flush_medium_mmc;
|
|
|
|
/* initial state */
|
|
dfu->inited = 0;
|
|
|
|
return 0;
|
|
}
|