mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-24 10:58:52 +09:00
![Stephen Warren](/assets/img/avatar_default.png)
Use %p to print pointers. The max value of (i_buf - i_buf_start) should be dfu_buf_size, which is an unsigned long, so cast the pointer difference to that type to print. Change-Id: Iee242df9f8eb091aecfe0cea4c282b28b547acfe Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
395 lines
8.7 KiB
C
395 lines
8.7 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>
|
|
#include <ext4fs.h>
|
|
#include <fat.h>
|
|
#include <mmc.h>
|
|
|
|
static unsigned char *dfu_file_buf;
|
|
static long dfu_file_buf_len;
|
|
|
|
static int mmc_access_part(struct dfu_entity *dfu, struct mmc *mmc, int part)
|
|
{
|
|
int ret;
|
|
|
|
if (part == mmc->part_num)
|
|
return 0;
|
|
|
|
ret = mmc_switch_part(dfu->data.mmc.dev_num, part);
|
|
if (ret) {
|
|
error("Cannot switch to partition %d\n", part);
|
|
return ret;
|
|
}
|
|
mmc->part_num = part;
|
|
|
|
return 0;
|
|
}
|
|
|
|
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) {
|
|
error("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->part_num;
|
|
ret = mmc_access_part(dfu, mmc, 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 = mmc->block_dev.block_read(dfu->data.mmc.dev_num, blk_start,
|
|
blk_count, buf);
|
|
break;
|
|
case DFU_OP_WRITE:
|
|
n = mmc->block_dev.block_write(dfu->data.mmc.dev_num, blk_start,
|
|
blk_count, buf);
|
|
break;
|
|
default:
|
|
error("Operation not supported\n");
|
|
}
|
|
|
|
if (n != blk_count) {
|
|
error("MMC operation failed");
|
|
if (dfu->data.mmc.hw_partition >= 0)
|
|
mmc_access_part(dfu, mmc, part_num_bkp);
|
|
return -EIO;
|
|
}
|
|
|
|
if (dfu->data.mmc.hw_partition >= 0) {
|
|
ret = mmc_access_part(dfu, mmc, part_num_bkp);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
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, long *len)
|
|
{
|
|
const char *fsname, *opname;
|
|
char cmd_buf[DFU_CMD_BUF_SIZE];
|
|
char *str_env;
|
|
int ret;
|
|
|
|
switch (dfu->layout) {
|
|
case DFU_FS_FAT:
|
|
fsname = "fat";
|
|
break;
|
|
case DFU_FS_EXT4:
|
|
fsname = "ext4";
|
|
break;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
return -1;
|
|
}
|
|
|
|
switch (op) {
|
|
case DFU_OP_READ:
|
|
opname = "load";
|
|
break;
|
|
case DFU_OP_WRITE:
|
|
opname = "write";
|
|
break;
|
|
case DFU_OP_SIZE:
|
|
opname = "size";
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
sprintf(cmd_buf, "%s%s mmc %d:%d", fsname, opname,
|
|
dfu->data.mmc.dev, dfu->data.mmc.part);
|
|
|
|
if (op != DFU_OP_SIZE)
|
|
sprintf(cmd_buf + strlen(cmd_buf), " %p", buf);
|
|
|
|
sprintf(cmd_buf + strlen(cmd_buf), " %s", dfu->name);
|
|
|
|
if (op == DFU_OP_WRITE)
|
|
sprintf(cmd_buf + strlen(cmd_buf), " %lx", *len);
|
|
|
|
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 (op != DFU_OP_WRITE) {
|
|
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;
|
|
}
|
|
|
|
long dfu_get_medium_size_mmc(struct dfu_entity *dfu)
|
|
{
|
|
int ret;
|
|
long len;
|
|
|
|
switch (dfu->layout) {
|
|
case DFU_RAW_ADDR:
|
|
return dfu->data.mmc.lba_size * dfu->data.mmc.lba_blk_size;
|
|
case DFU_FS_FAT:
|
|
case DFU_FS_EXT4:
|
|
ret = mmc_file_op(DFU_OP_SIZE, dfu, NULL, &len);
|
|
if (ret < 0)
|
|
return ret;
|
|
return len;
|
|
default:
|
|
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
|
|
dfu_get_layout(dfu->layout));
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
size_t second_arg;
|
|
size_t third_arg;
|
|
|
|
struct mmc *mmc;
|
|
|
|
const char *argv[3];
|
|
const char **parg = argv;
|
|
|
|
dfu->data.mmc.dev_num = simple_strtoul(devstr, NULL, 10);
|
|
|
|
for (; parg < argv + sizeof(argv) / sizeof(*argv); ++parg) {
|
|
*parg = strsep(&s, " ");
|
|
if (*parg == NULL) {
|
|
error("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_strtoul(argv[1], NULL, 0);
|
|
third_arg = simple_strtoul(argv[2], NULL, 0);
|
|
|
|
mmc = find_mmc_device(dfu->data.mmc.dev_num);
|
|
if (mmc == NULL) {
|
|
error("Couldn't find MMC device no. %d.\n",
|
|
dfu->data.mmc.dev_num);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (mmc_init(mmc)) {
|
|
error("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")) {
|
|
disk_partition_t partinfo;
|
|
block_dev_desc_t *blk_dev = &mmc->block_dev;
|
|
int mmcdev = second_arg;
|
|
int mmcpart = third_arg;
|
|
|
|
if (get_partition_info(blk_dev, mmcpart, &partinfo) != 0) {
|
|
error("Couldn't find part #%d on mmc device #%d\n",
|
|
mmcpart, mmcdev);
|
|
return -ENODEV;
|
|
}
|
|
|
|
dfu->layout = DFU_RAW_ADDR;
|
|
dfu->data.mmc.lba_start = partinfo.start;
|
|
dfu->data.mmc.lba_size = partinfo.size;
|
|
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 {
|
|
error("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;
|
|
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) {
|
|
error("Could not memalign 0x%x bytes",
|
|
CONFIG_SYS_DFU_MAX_FILE_SIZE);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|