mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 18:09:03 +09:00
![Afzal Mohammed](/assets/img/avatar_default.png)
MMC and NAND independently defines same enumerators for read/write. Unify them by defining enum in dfu header. RAM support that is being added newly also can make use of it. Signed-off-by: Afzal Mohammed <afzal.mohd.ma@gmail.com> Cc: Heiko Schocher <hs@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
235 lines
5.4 KiB
C
235 lines
5.4 KiB
C
/*
|
|
* dfu.c -- DFU back-end routines
|
|
*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* author: Lukasz Majewski <l.majewski@samsung.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <errno.h>
|
|
#include <div64.h>
|
|
#include <dfu.h>
|
|
|
|
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_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_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);
|
|
if (op == DFU_OP_WRITE)
|
|
sprintf(cmd_buf + strlen(cmd_buf), " %ld", *len);
|
|
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;
|
|
}
|