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/*
* Copyright 2017 Rockchip Electronics Co., Ltd
* Frank Wang <frank.wang@rock-chips.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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>
#include <rockusb.h>
static struct rockusb rkusb;
static struct rockusb *g_rkusb;
static int rkusb_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;
if ((blkstart + blkcnt) > RKUSB_READ_LIMIT_ADDR) {
memset(buf, 0xcc, blkcnt * SECTOR_SIZE);
return blkcnt;
} else {
return blk_dread(block_dev, blkstart, blkcnt, buf);
}
}
static int rkusb_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 int rkusb_erase_sector(struct ums *ums_dev,
ulong start, lbaint_t blkcnt)
{
struct blk_desc *block_dev = &ums_dev->block_dev;
lbaint_t blkstart = start + ums_dev->start_sector;
return blk_derase(block_dev, blkstart, blkcnt);
}
static void rkusb_fini(void)
{
int i;
for (i = 0; i < g_rkusb->ums_cnt; i++)
free((void *)g_rkusb->ums[i].name);
free(g_rkusb->ums);
g_rkusb->ums = NULL;
g_rkusb = NULL;
g_rkusb->ums_cnt = 0;
}
#define RKUSB_NAME_LEN 16
static int rkusb_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, cnt;
int ret = -1;
struct ums *ums_new;
s = strdup(devnums_part_str);
if (!s)
return -1;
t = s;
g_rkusb->ums_cnt = 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;
/* f_mass_storage.c assumes SECTOR_SIZE sectors */
if (block_dev->blksz != SECTOR_SIZE)
goto cleanup;
ums_new = realloc(g_rkusb->ums, (g_rkusb->ums_cnt + 1) *
sizeof(*g_rkusb->ums));
if (!ums_new)
goto cleanup;
g_rkusb->ums = ums_new;
cnt = g_rkusb->ums_cnt;
/* Expose all partitions for rockusb command */
g_rkusb->ums[cnt].start_sector = 0;
g_rkusb->ums[cnt].num_sectors = block_dev->lba;
g_rkusb->ums[cnt].read_sector = rkusb_read_sector;
g_rkusb->ums[cnt].write_sector = rkusb_write_sector;
g_rkusb->ums[cnt].erase_sector = rkusb_erase_sector;
name = malloc(RKUSB_NAME_LEN);
if (!name)
goto cleanup;
snprintf(name, RKUSB_NAME_LEN, "rkusb disk %d", cnt);
g_rkusb->ums[cnt].name = name;
g_rkusb->ums[cnt].block_dev = *block_dev;
printf("RKUSB: LUN %d, dev %d, hwpart %d, sector %#x, count %#x\n",
g_rkusb->ums_cnt,
g_rkusb->ums[cnt].block_dev.devnum,
g_rkusb->ums[cnt].block_dev.hwpart,
g_rkusb->ums[cnt].start_sector,
g_rkusb->ums[cnt].num_sectors);
g_rkusb->ums_cnt++;
}
if (g_rkusb->ums_cnt)
ret = 0;
cleanup:
free(s);
if (ret < 0)
rkusb_fini();
return ret;
}
static int do_rkusb(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;
const char *s;
if (argc != 4)
return CMD_RET_USAGE;
usb_controller = argv[1];
devtype = argv[2];
devnum = argv[3];
g_rkusb = &rkusb;
rc = rkusb_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_rkusb;
}
rc = fsg_init(g_rkusb->ums, g_rkusb->ums_cnt);
if (rc) {
pr_err("fsg_init failed");
rc = CMD_RET_FAILURE;
goto cleanup_board;
}
s = env_get("serial#");
if (s)
g_dnl_set_serialnumber((char *)s);
rc = g_dnl_register("rkusb_ums_dnl");
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()) {
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.\nCommand 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_rkusb:
rkusb_fini();
return rc;
}
U_BOOT_CMD(rockusb, 4, 1, do_rkusb,
"Use the rockusb Protocol",
"<USB_controller> <devtype> <dev[:part]> e.g. rockusb 0 mmc 0\n"
);
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