mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-19 16:38:53 +09:00
![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
246 lines
5.2 KiB
C
246 lines
5.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2011 Samsung Electronics
|
|
* Lukasz Majewski <l.majewski@samsung.com>
|
|
*
|
|
* Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <console.h>
|
|
#include <g_dnl.h>
|
|
#include <part.h>
|
|
#include <usb.h>
|
|
#include <usb_mass_storage.h>
|
|
|
|
static int ums_read_sector(struct ums *ums_dev,
|
|
ulong start, lbaint_t blkcnt, void *buf)
|
|
{
|
|
struct blk_desc *block_dev = &ums_dev->block_dev;
|
|
lbaint_t blkstart = start + ums_dev->start_sector;
|
|
|
|
return blk_dread(block_dev, blkstart, blkcnt, buf);
|
|
}
|
|
|
|
static int ums_write_sector(struct ums *ums_dev,
|
|
ulong start, lbaint_t blkcnt, const void *buf)
|
|
{
|
|
struct blk_desc *block_dev = &ums_dev->block_dev;
|
|
lbaint_t blkstart = start + ums_dev->start_sector;
|
|
|
|
return blk_dwrite(block_dev, blkstart, blkcnt, buf);
|
|
}
|
|
|
|
static struct ums *ums;
|
|
static int ums_count;
|
|
|
|
static void ums_fini(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ums_count; i++)
|
|
free((void *)ums[i].name);
|
|
free(ums);
|
|
ums = NULL;
|
|
ums_count = 0;
|
|
}
|
|
|
|
#define UMS_NAME_LEN 16
|
|
|
|
static int ums_init(const char *devtype, const char *devnums_part_str)
|
|
{
|
|
char *s, *t, *devnum_part_str, *name;
|
|
struct blk_desc *block_dev;
|
|
disk_partition_t info;
|
|
int partnum;
|
|
int ret = -1;
|
|
struct ums *ums_new;
|
|
|
|
s = strdup(devnums_part_str);
|
|
if (!s)
|
|
return -1;
|
|
|
|
t = s;
|
|
ums_count = 0;
|
|
|
|
for (;;) {
|
|
devnum_part_str = strsep(&t, ",");
|
|
if (!devnum_part_str)
|
|
break;
|
|
|
|
partnum = blk_get_device_part_str(devtype, devnum_part_str,
|
|
&block_dev, &info, 1);
|
|
|
|
if (partnum < 0)
|
|
goto cleanup;
|
|
|
|
/* Check if the argument is in legacy format. If yes,
|
|
* expose all partitions by setting the partnum = 0
|
|
* e.g. ums 0 mmc 0
|
|
*/
|
|
if (!strchr(devnum_part_str, ':'))
|
|
partnum = 0;
|
|
|
|
/* f_mass_storage.c assumes SECTOR_SIZE sectors */
|
|
if (block_dev->blksz != SECTOR_SIZE)
|
|
goto cleanup;
|
|
|
|
ums_new = realloc(ums, (ums_count + 1) * sizeof(*ums));
|
|
if (!ums_new)
|
|
goto cleanup;
|
|
ums = ums_new;
|
|
|
|
/* if partnum = 0, expose all partitions */
|
|
if (partnum == 0) {
|
|
ums[ums_count].start_sector = 0;
|
|
ums[ums_count].num_sectors = block_dev->lba;
|
|
} else {
|
|
ums[ums_count].start_sector = info.start;
|
|
ums[ums_count].num_sectors = info.size;
|
|
}
|
|
|
|
ums[ums_count].read_sector = ums_read_sector;
|
|
ums[ums_count].write_sector = ums_write_sector;
|
|
|
|
name = malloc(UMS_NAME_LEN);
|
|
if (!name)
|
|
goto cleanup;
|
|
snprintf(name, UMS_NAME_LEN, "UMS disk %d", ums_count);
|
|
ums[ums_count].name = name;
|
|
ums[ums_count].block_dev = *block_dev;
|
|
|
|
printf("UMS: LUN %d, dev %d, hwpart %d, sector %#x, count %#x\n",
|
|
ums_count, ums[ums_count].block_dev.devnum,
|
|
ums[ums_count].block_dev.hwpart,
|
|
ums[ums_count].start_sector,
|
|
ums[ums_count].num_sectors);
|
|
|
|
ums_count++;
|
|
}
|
|
|
|
if (ums_count)
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
free(s);
|
|
|
|
if (ret < 0)
|
|
ums_fini();
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
const char *usb_controller;
|
|
const char *devtype;
|
|
const char *devnum;
|
|
unsigned int controller_index;
|
|
int rc;
|
|
int cable_ready_timeout __maybe_unused;
|
|
|
|
if (argc < 3)
|
|
return CMD_RET_USAGE;
|
|
|
|
usb_controller = argv[1];
|
|
if (argc >= 4) {
|
|
devtype = argv[2];
|
|
devnum = argv[3];
|
|
} else {
|
|
devtype = "mmc";
|
|
devnum = argv[2];
|
|
}
|
|
|
|
rc = ums_init(devtype, devnum);
|
|
if (rc < 0)
|
|
return CMD_RET_FAILURE;
|
|
|
|
controller_index = (unsigned int)(simple_strtoul(
|
|
usb_controller, NULL, 0));
|
|
if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
|
|
pr_err("Couldn't init USB controller.");
|
|
rc = CMD_RET_FAILURE;
|
|
goto cleanup_ums_init;
|
|
}
|
|
|
|
rc = fsg_init(ums, ums_count);
|
|
if (rc) {
|
|
pr_err("fsg_init failed");
|
|
rc = CMD_RET_FAILURE;
|
|
goto cleanup_board;
|
|
}
|
|
|
|
rc = g_dnl_register("usb_dnl_ums");
|
|
if (rc) {
|
|
pr_err("g_dnl_register failed");
|
|
rc = CMD_RET_FAILURE;
|
|
goto cleanup_board;
|
|
}
|
|
|
|
/* Timeout unit: seconds */
|
|
cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
|
|
|
|
if (!g_dnl_board_usb_cable_connected()) {
|
|
/*
|
|
* Won't execute if we don't know whether the cable is
|
|
* connected.
|
|
*/
|
|
puts("Please connect USB cable.\n");
|
|
|
|
while (!g_dnl_board_usb_cable_connected()) {
|
|
if (ctrlc()) {
|
|
puts("\rCTRL+C - Operation aborted.\n");
|
|
rc = CMD_RET_SUCCESS;
|
|
goto cleanup_register;
|
|
}
|
|
if (!cable_ready_timeout) {
|
|
puts("\rUSB cable not detected.\n" \
|
|
"Command exit.\n");
|
|
rc = CMD_RET_SUCCESS;
|
|
goto cleanup_register;
|
|
}
|
|
|
|
printf("\rAuto exit in: %.2d s.", cable_ready_timeout);
|
|
mdelay(1000);
|
|
cable_ready_timeout--;
|
|
}
|
|
puts("\r\n");
|
|
}
|
|
|
|
while (1) {
|
|
usb_gadget_handle_interrupts(controller_index);
|
|
|
|
rc = fsg_main_thread(NULL);
|
|
if (rc) {
|
|
/* Check I/O error */
|
|
if (rc == -EIO)
|
|
printf("\rCheck USB cable connection\n");
|
|
|
|
/* Check CTRL+C */
|
|
if (rc == -EPIPE)
|
|
printf("\rCTRL+C - Operation aborted\n");
|
|
|
|
rc = CMD_RET_SUCCESS;
|
|
goto cleanup_register;
|
|
}
|
|
}
|
|
|
|
cleanup_register:
|
|
g_dnl_unregister();
|
|
cleanup_board:
|
|
board_usb_cleanup(controller_index, USB_INIT_DEVICE);
|
|
cleanup_ums_init:
|
|
ums_fini();
|
|
|
|
return rc;
|
|
}
|
|
|
|
U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage,
|
|
"Use the UMS [USB Mass Storage]",
|
|
"<USB_controller> [<devtype>] <dev[:part]> e.g. ums 0 mmc 0\n"
|
|
" devtype defaults to mmc"
|
|
);
|