Merge tag 'for-v2020.07' of https://gitlab.denx.de/u-boot/custodians/u-boot-ubi
[oweals/u-boot.git] / cmd / usb_mass_storage.c
index 041559172d9560407df9249ef5de3d57ff1125e1..c5c6899787c84a746afb30317433ab9c779f39e8 100644 (file)
@@ -1,10 +1,9 @@
+// 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.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <errno.h>
 #include <command.h>
 #include <console.h>
 #include <g_dnl.h>
+#include <malloc.h>
 #include <part.h>
 #include <usb.h>
 #include <usb_mass_storage.h>
+#include <watchdog.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;
+       struct blk_desc *block_dev = &ums_dev->block_dev;
        lbaint_t blkstart = start + ums_dev->start_sector;
 
-       return block_dev->block_read(block_dev, blkstart, blkcnt, buf);
+       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)
 {
-       block_dev_desc_t *block_dev = &ums_dev->block_dev;
+       struct blk_desc *block_dev = &ums_dev->block_dev;
        lbaint_t blkstart = start + ums_dev->start_sector;
 
-       return block_dev->block_write(block_dev, blkstart, blkcnt, buf);
+       return blk_dwrite(block_dev, blkstart, blkcnt, buf);
 }
 
 static struct ums *ums;
@@ -44,20 +45,22 @@ static void ums_fini(void)
        for (i = 0; i < ums_count; i++)
                free((void *)ums[i].name);
        free(ums);
-       ums = 0;
+       ums = NULL;
        ums_count = 0;
 }
 
 #define UMS_NAME_LEN 16
 
-static int ums_init(const char *devtype, const char *devnums)
+static int ums_init(const char *devtype, const char *devnums_part_str)
 {
-       char *s, *t, *devnum, *name;
-       block_dev_desc_t *block_dev;
-       int ret;
+       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);
+       s = strdup(devnums_part_str);
        if (!s)
                return -1;
 
@@ -65,42 +68,53 @@ static int ums_init(const char *devtype, const char *devnums)
        ums_count = 0;
 
        for (;;) {
-               devnum = strsep(&t, ",");
-               if (!devnum)
+               devnum_part_str = strsep(&t, ",");
+               if (!devnum_part_str)
                        break;
 
-               ret = get_device(devtype, devnum, &block_dev);
-               if (ret < 0)
+               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) {
-                       ret = -1;
+               if (block_dev->blksz != SECTOR_SIZE)
                        goto cleanup;
-               }
 
                ums_new = realloc(ums, (ums_count + 1) * sizeof(*ums));
-               if (!ums_new) {
-                       ret = -1;
+               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;
-               ums[ums_count].start_sector = 0;
-               ums[ums_count].num_sectors = block_dev->lba;
+
                name = malloc(UMS_NAME_LEN);
-               if (!name) {
-                       ret = -1;
+               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.dev,
+                      ums_count, ums[ums_count].block_dev.devnum,
                       ums[ums_count].block_dev.hwpart,
                       ums[ums_count].start_sector,
                       ums[ums_count].num_sectors);
@@ -108,9 +122,7 @@ static int ums_init(const char *devtype, const char *devnums)
                ums_count++;
        }
 
-       if (!ums_count)
-               ret = -1;
-       else
+       if (ums_count)
                ret = 0;
 
 cleanup:
@@ -122,7 +134,7 @@ cleanup:
        return ret;
 }
 
-int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
+static int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
                               int argc, char * const argv[])
 {
        const char *usb_controller;
@@ -150,22 +162,22 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
 
        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.");
+       if (usb_gadget_initialize(controller_index)) {
+               pr_err("Couldn't init USB controller.\n");
                rc = CMD_RET_FAILURE;
                goto cleanup_ums_init;
        }
 
        rc = fsg_init(ums, ums_count);
        if (rc) {
-               error("fsg_init failed");
+               pr_err("fsg_init failed\n");
                rc = CMD_RET_FAILURE;
                goto cleanup_board;
        }
 
        rc = g_dnl_register("usb_dnl_ums");
        if (rc) {
-               error("g_dnl_register failed");
+               pr_err("g_dnl_register failed\n");
                rc = CMD_RET_FAILURE;
                goto cleanup_board;
        }
@@ -216,12 +228,14 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
                        rc = CMD_RET_SUCCESS;
                        goto cleanup_register;
                }
+
+               WATCHDOG_RESET();
        }
 
 cleanup_register:
        g_dnl_unregister();
 cleanup_board:
-       board_usb_cleanup(controller_index, USB_INIT_DEVICE);
+       usb_gadget_release(controller_index);
 cleanup_ums_init:
        ums_fini();
 
@@ -230,6 +244,6 @@ cleanup_ums_init:
 
 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"
+       "<USB_controller> [<devtype>] <dev[:part]>  e.g. ums 0 mmc 0\n"
        "    devtype defaults to mmc"
 );