mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 19:10:13 +00:00
0b1284eb52
It is a pain to have to specify the value 10 in each call. Add a new dectoul() function and update the code to use it. Signed-off-by: Simon Glass <sjg@chromium.org>
462 lines
10 KiB
C
462 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* dfu.c -- DFU back-end routines
|
|
*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* author: Lukasz Majewski <l.majewski@samsung.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <log.h>
|
|
#include <malloc.h>
|
|
#include <errno.h>
|
|
#include <div64.h>
|
|
#include <dfu.h>
|
|
#include <ext4fs.h>
|
|
#include <fat.h>
|
|
#include <mmc.h>
|
|
#include <part.h>
|
|
#include <command.h>
|
|
|
|
static unsigned char *dfu_file_buf;
|
|
static u64 dfu_file_buf_len;
|
|
static u64 dfu_file_buf_offset;
|
|
|
|
static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu,
|
|
u64 offset, void *buf, long *len)
|
|
{
|
|
struct mmc *mmc;
|
|
u32 blk_start, blk_count, n = 0;
|
|
int ret, part_num_bkp = 0;
|
|
|
|
mmc = find_mmc_device(dfu->data.mmc.dev_num);
|
|
if (!mmc) {
|
|
pr_err("Device MMC %d - not found!", dfu->data.mmc.dev_num);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
|
|
if (dfu->data.mmc.hw_partition >= 0) {
|
|
part_num_bkp = mmc_get_blk_desc(mmc)->hwpart;
|
|
ret = blk_select_hwpart_devnum(IF_TYPE_MMC,
|
|
dfu->data.mmc.dev_num,
|
|
dfu->data.mmc.hw_partition);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
debug("%s: %s dev: %d start: %d cnt: %d buf: 0x%p\n", __func__,
|
|
op == DFU_OP_READ ? "MMC READ" : "MMC WRITE",
|
|
dfu->data.mmc.dev_num, blk_start, blk_count, buf);
|
|
switch (op) {
|
|
case DFU_OP_READ:
|
|
n = blk_dread(mmc_get_blk_desc(mmc), blk_start, blk_count, buf);
|
|
break;
|
|
case DFU_OP_WRITE:
|
|
n = blk_dwrite(mmc_get_blk_desc(mmc), blk_start, blk_count,
|
|
buf);
|
|
break;
|
|
default:
|
|
pr_err("Operation not supported\n");
|
|
}
|
|
|
|
if (n != blk_count) {
|
|
pr_err("MMC operation failed");
|
|
if (dfu->data.mmc.hw_partition >= 0)
|
|
blk_select_hwpart_devnum(IF_TYPE_MMC,
|
|
dfu->data.mmc.dev_num,
|
|
part_num_bkp);
|
|
return -EIO;
|
|
}
|
|
|
|
if (dfu->data.mmc.hw_partition >= 0) {
|
|
ret = blk_select_hwpart_devnum(IF_TYPE_MMC,
|
|
dfu->data.mmc.dev_num,
|
|
part_num_bkp);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mmc_file_op(enum dfu_op op, struct dfu_entity *dfu,
|
|
u64 offset, void *buf, u64 *len)
|
|
{
|
|
char dev_part_str[8];
|
|
int ret;
|
|
int fstype;
|
|
loff_t size = 0;
|
|
|
|
switch (dfu->layout) {
|
|
case DFU_FS_FAT:
|
|
fstype = FS_TYPE_FAT;
|
|
break;
|
|
case DFU_FS_EXT4:
|
|
fstype = FS_TYPE_EXT;
|
|
break;
|
|
case DFU_SKIP:
|
|
return 0;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
return -1;
|
|
}
|
|
|
|
snprintf(dev_part_str, sizeof(dev_part_str), "%d:%d",
|
|
dfu->data.mmc.dev, dfu->data.mmc.part);
|
|
|
|
ret = fs_set_blk_dev("mmc", dev_part_str, fstype);
|
|
if (ret) {
|
|
puts("dfu: fs_set_blk_dev error!\n");
|
|
return ret;
|
|
}
|
|
|
|
switch (op) {
|
|
case DFU_OP_READ:
|
|
ret = fs_read(dfu->name, (size_t)buf, offset, *len, &size);
|
|
if (ret) {
|
|
puts("dfu: fs_read error!\n");
|
|
return ret;
|
|
}
|
|
*len = size;
|
|
break;
|
|
case DFU_OP_WRITE:
|
|
ret = fs_write(dfu->name, (size_t)buf, offset, *len, &size);
|
|
if (ret) {
|
|
puts("dfu: fs_write error!\n");
|
|
return ret;
|
|
}
|
|
break;
|
|
case DFU_OP_SIZE:
|
|
ret = fs_size(dfu->name, &size);
|
|
if (ret) {
|
|
puts("dfu: fs_size error!\n");
|
|
return ret;
|
|
}
|
|
*len = size;
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mmc_file_buf_write(struct dfu_entity *dfu, u64 offset, void *buf, long *len)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (offset == 0) {
|
|
dfu_file_buf_len = 0;
|
|
dfu_file_buf_offset = 0;
|
|
}
|
|
|
|
/* Add to the current buffer. */
|
|
if (dfu_file_buf_len + *len > CONFIG_SYS_DFU_MAX_FILE_SIZE)
|
|
*len = CONFIG_SYS_DFU_MAX_FILE_SIZE - dfu_file_buf_len;
|
|
memcpy(dfu_file_buf + dfu_file_buf_len, buf, *len);
|
|
dfu_file_buf_len += *len;
|
|
|
|
if (dfu_file_buf_len == CONFIG_SYS_DFU_MAX_FILE_SIZE) {
|
|
ret = mmc_file_op(DFU_OP_WRITE, dfu, dfu_file_buf_offset,
|
|
dfu_file_buf, &dfu_file_buf_len);
|
|
dfu_file_buf_offset += dfu_file_buf_len;
|
|
dfu_file_buf_len = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mmc_file_buf_write_finish(struct dfu_entity *dfu)
|
|
{
|
|
int ret = mmc_file_op(DFU_OP_WRITE, dfu, dfu_file_buf_offset,
|
|
dfu_file_buf, &dfu_file_buf_len);
|
|
|
|
/* Now that we're done */
|
|
dfu_file_buf_len = 0;
|
|
dfu_file_buf_offset = 0;
|
|
|
|
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_buf_write(dfu, offset, buf, len);
|
|
break;
|
|
case DFU_SCRIPT:
|
|
ret = run_command_list(buf, *len, 0);
|
|
break;
|
|
case DFU_SKIP:
|
|
ret = 0;
|
|
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;
|
|
|
|
switch (dfu->layout) {
|
|
case DFU_FS_FAT:
|
|
case DFU_FS_EXT4:
|
|
ret = mmc_file_buf_write_finish(dfu);
|
|
break;
|
|
case DFU_SCRIPT:
|
|
/* script may have changed the dfu_alt_info */
|
|
dfu_reinit_needed = true;
|
|
break;
|
|
case DFU_RAW_ADDR:
|
|
case DFU_SKIP:
|
|
break;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int dfu_get_medium_size_mmc(struct dfu_entity *dfu, u64 *size)
|
|
{
|
|
int ret;
|
|
|
|
switch (dfu->layout) {
|
|
case DFU_RAW_ADDR:
|
|
*size = dfu->data.mmc.lba_size * dfu->data.mmc.lba_blk_size;
|
|
return 0;
|
|
case DFU_FS_FAT:
|
|
case DFU_FS_EXT4:
|
|
ret = mmc_file_op(DFU_OP_SIZE, dfu, 0, NULL, size);
|
|
if (ret < 0)
|
|
return ret;
|
|
return 0;
|
|
case DFU_SCRIPT:
|
|
case DFU_SKIP:
|
|
return 0;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
|
|
static int mmc_file_buf_read(struct dfu_entity *dfu, u64 offset, void *buf,
|
|
long *len)
|
|
{
|
|
int ret;
|
|
|
|
if (offset == 0 || offset >= dfu_file_buf_offset + dfu_file_buf_len ||
|
|
offset + *len < dfu_file_buf_offset) {
|
|
u64 file_len = CONFIG_SYS_DFU_MAX_FILE_SIZE;
|
|
|
|
ret = mmc_file_op(DFU_OP_READ, dfu, offset, dfu_file_buf,
|
|
&file_len);
|
|
if (ret < 0)
|
|
return ret;
|
|
dfu_file_buf_len = file_len;
|
|
dfu_file_buf_offset = offset;
|
|
}
|
|
if (offset + *len > dfu_file_buf_offset + dfu_file_buf_len)
|
|
return -EINVAL;
|
|
|
|
/* Add to the current buffer. */
|
|
memcpy(buf, dfu_file_buf + offset - dfu_file_buf_offset, *len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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_buf_read(dfu, offset, buf, len);
|
|
break;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void dfu_free_entity_mmc(struct dfu_entity *dfu)
|
|
{
|
|
if (dfu_file_buf) {
|
|
free(dfu_file_buf);
|
|
dfu_file_buf = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* @param s Parameter string containing space-separated arguments:
|
|
* 1st:
|
|
* raw (raw read/write)
|
|
* fat (files)
|
|
* ext4 (^)
|
|
* part (partition image)
|
|
* 2nd and 3rd:
|
|
* lba_start and lba_size, for raw write
|
|
* mmc_dev and mmc_part, for filesystems and part
|
|
* 4th (optional):
|
|
* mmcpart <num> (access to HW eMMC partitions)
|
|
*/
|
|
int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s)
|
|
{
|
|
const char *entity_type;
|
|
ssize_t second_arg;
|
|
size_t third_arg;
|
|
|
|
struct mmc *mmc;
|
|
|
|
const char *argv[3];
|
|
const char **parg = argv;
|
|
|
|
dfu->data.mmc.dev_num = dectoul(devstr, NULL);
|
|
|
|
for (; parg < argv + sizeof(argv) / sizeof(*argv); ++parg) {
|
|
*parg = strsep(&s, " ");
|
|
if (*parg == NULL) {
|
|
pr_err("Invalid number of arguments.\n");
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
entity_type = argv[0];
|
|
/*
|
|
* Base 0 means we'll accept (prefixed with 0x or 0) base 16, 8,
|
|
* with default 10.
|
|
*/
|
|
second_arg = simple_strtol(argv[1], NULL, 0);
|
|
third_arg = simple_strtoul(argv[2], NULL, 0);
|
|
|
|
mmc = find_mmc_device(dfu->data.mmc.dev_num);
|
|
if (mmc == NULL) {
|
|
pr_err("Couldn't find MMC device no. %d.\n",
|
|
dfu->data.mmc.dev_num);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (mmc_init(mmc)) {
|
|
pr_err("Couldn't init MMC device.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
dfu->data.mmc.hw_partition = -EINVAL;
|
|
if (!strcmp(entity_type, "raw")) {
|
|
dfu->layout = DFU_RAW_ADDR;
|
|
dfu->data.mmc.lba_start = second_arg;
|
|
dfu->data.mmc.lba_size = third_arg;
|
|
dfu->data.mmc.lba_blk_size = mmc->read_bl_len;
|
|
|
|
/*
|
|
* Check for an extra entry at dfu_alt_info env variable
|
|
* specifying the mmc HW defined partition number
|
|
*/
|
|
if (s)
|
|
if (!strcmp(strsep(&s, " "), "mmcpart"))
|
|
dfu->data.mmc.hw_partition =
|
|
simple_strtoul(s, NULL, 0);
|
|
|
|
} else if (!strcmp(entity_type, "part")) {
|
|
struct disk_partition partinfo;
|
|
struct blk_desc *blk_dev = mmc_get_blk_desc(mmc);
|
|
int mmcdev = second_arg;
|
|
int mmcpart = third_arg;
|
|
int offset = 0;
|
|
|
|
if (part_get_info(blk_dev, mmcpart, &partinfo) != 0) {
|
|
pr_err("Couldn't find part #%d on mmc device #%d\n",
|
|
mmcpart, mmcdev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/*
|
|
* Check for an extra entry at dfu_alt_info env variable
|
|
* specifying the mmc HW defined partition number
|
|
*/
|
|
if (s)
|
|
if (!strcmp(strsep(&s, " "), "offset"))
|
|
offset = simple_strtoul(s, NULL, 0);
|
|
|
|
dfu->layout = DFU_RAW_ADDR;
|
|
dfu->data.mmc.lba_start = partinfo.start + offset;
|
|
dfu->data.mmc.lba_size = partinfo.size-offset;
|
|
dfu->data.mmc.lba_blk_size = partinfo.blksz;
|
|
} else if (!strcmp(entity_type, "fat")) {
|
|
dfu->layout = DFU_FS_FAT;
|
|
} else if (!strcmp(entity_type, "ext4")) {
|
|
dfu->layout = DFU_FS_EXT4;
|
|
} else if (!strcmp(entity_type, "skip")) {
|
|
dfu->layout = DFU_SKIP;
|
|
} else if (!strcmp(entity_type, "script")) {
|
|
dfu->layout = DFU_SCRIPT;
|
|
} else {
|
|
pr_err("Memory layout (%s) not supported!\n", entity_type);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* if it's NOT a raw write */
|
|
if (strcmp(entity_type, "raw")) {
|
|
dfu->data.mmc.dev = (second_arg != -1) ? second_arg :
|
|
dfu->data.mmc.dev_num;
|
|
dfu->data.mmc.part = third_arg;
|
|
}
|
|
|
|
dfu->dev_type = DFU_DEV_MMC;
|
|
dfu->get_medium_size = dfu_get_medium_size_mmc;
|
|
dfu->read_medium = dfu_read_medium_mmc;
|
|
dfu->write_medium = dfu_write_medium_mmc;
|
|
dfu->flush_medium = dfu_flush_medium_mmc;
|
|
dfu->inited = 0;
|
|
dfu->free_entity = dfu_free_entity_mmc;
|
|
|
|
/* Check if file buffer is ready */
|
|
if (!dfu_file_buf) {
|
|
dfu_file_buf = memalign(CONFIG_SYS_CACHELINE_SIZE,
|
|
CONFIG_SYS_DFU_MAX_FILE_SIZE);
|
|
if (!dfu_file_buf) {
|
|
pr_err("Could not memalign 0x%x bytes",
|
|
CONFIG_SYS_DFU_MAX_FILE_SIZE);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|