* SPDX-License-Identifier: GPL-2.0+
*/
+#include <errno.h>
#include <common.h>
#include <command.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)
+{
+ block_dev_desc_t *block_dev = ums_dev->block_dev;
+ lbaint_t blkstart = start + ums_dev->start_sector;
+ int dev_num = block_dev->dev;
+
+ return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
+}
+
+static int ums_write_sector(struct ums *ums_dev,
+ ulong start, lbaint_t blkcnt, const void *buf)
+{
+ block_dev_desc_t *block_dev = ums_dev->block_dev;
+ lbaint_t blkstart = start + ums_dev->start_sector;
+ int dev_num = block_dev->dev;
+
+ return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
+}
+
+static struct ums ums_dev = {
+ .read_sector = ums_read_sector,
+ .write_sector = ums_write_sector,
+ .name = "UMS disk",
+};
+
+struct ums *ums_init(const char *devtype, const char *devnum)
+{
+ block_dev_desc_t *block_dev;
+ int ret;
+
+ ret = get_device(devtype, devnum, &block_dev);
+ if (ret < 0)
+ return NULL;
+
+ /* f_mass_storage.c assumes SECTOR_SIZE sectors */
+ if (block_dev->blksz != SECTOR_SIZE)
+ return NULL;
+
+ ums_dev.block_dev = block_dev;
+ ums_dev.start_sector = 0;
+ ums_dev.num_sectors = block_dev->lba;
+
+ printf("UMS: disk start sector: %#x, count: %#x\n",
+ ums_dev.start_sector, ums_dev.num_sectors);
+
+ return &ums_dev;
+}
+
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;
+ struct ums *ums;
+ unsigned int controller_index;
+ int rc;
+ int cable_ready_timeout __maybe_unused;
+
if (argc < 3)
return CMD_RET_USAGE;
- const char *usb_controller = argv[1];
- const char *mmc_devstring = argv[2];
-
- unsigned int dev_num = (unsigned int)(simple_strtoul(mmc_devstring,
- NULL, 0));
- if (dev_num) {
- error("Set eMMC device to 0! - e.g. ums 0");
- goto fail;
+ usb_controller = argv[1];
+ if (argc >= 4) {
+ devtype = argv[2];
+ devnum = argv[3];
+ } else {
+ devtype = "mmc";
+ devnum = argv[2];
}
- unsigned int controller_index = (unsigned int)(simple_strtoul(
- usb_controller, NULL, 0));
+ ums = ums_init(devtype, devnum);
+ if (!ums)
+ return CMD_RET_FAILURE;
+
+ controller_index = (unsigned int)(simple_strtoul(
+ usb_controller, NULL, 0));
if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
error("Couldn't init USB controller.");
- goto fail;
+ return CMD_RET_FAILURE;
}
- struct ums_board_info *ums_info = board_ums_init(dev_num, 0, 0);
- if (!ums_info) {
- error("MMC: %d -> NOT available", dev_num);
- goto fail;
+ rc = fsg_init(ums);
+ if (rc) {
+ error("fsg_init failed");
+ return CMD_RET_FAILURE;
}
- int rc = fsg_init(ums_info);
+ rc = g_dnl_register("usb_dnl_ums");
if (rc) {
- error("fsg_init failed");
- goto fail;
+ error("g_dnl_register failed");
+ return CMD_RET_FAILURE;
}
- g_dnl_register("ums");
+ /* Timeout unit: seconds */
+ cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
- while (1) {
- /* Handle control-c and timeouts */
- if (ctrlc()) {
- error("The remote end did not respond in time.");
- goto exit;
+ 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");
+ goto exit;
+ }
+ if (!cable_ready_timeout) {
+ puts("\rUSB cable not detected.\n" \
+ "Command exit.\n");
+ goto exit;
+ }
+
+ 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");
- usb_gadget_handle_interrupts();
- /* Check if USB cable has been detached */
- if (fsg_main_thread(NULL) == EIO)
goto exit;
+ }
}
exit:
g_dnl_unregister();
- return 0;
-
-fail:
- return -1;
+ board_usb_cleanup(controller_index, USB_INIT_DEVICE);
+ return CMD_RET_SUCCESS;
}
-U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage,
- "Use the UMS [User Mass Storage]",
- "<USB_controller> <mmc_dev>"
+U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage,
+ "Use the UMS [USB Mass Storage]",
+ "<USB_controller> [<devtype>] <devnum> e.g. ums 0 mmc 0\n"
+ " devtype defaults to mmc"
);