1 /* 2 * Copyright 2017 Rockchip Electronics Co., Ltd 3 * Frank Wang <frank.wang@rock-chips.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <errno.h> 9 #include <common.h> 10 #include <command.h> 11 #include <console.h> 12 #include <g_dnl.h> 13 #include <part.h> 14 #include <usb.h> 15 #include <usb_mass_storage.h> 16 #include <rockusb.h> 17 18 static struct rockusb rkusb; 19 static struct rockusb *g_rkusb; 20 21 static int rkusb_read_sector(struct ums *ums_dev, 22 ulong start, lbaint_t blkcnt, void *buf) 23 { 24 struct blk_desc *block_dev = &ums_dev->block_dev; 25 lbaint_t blkstart = start + ums_dev->start_sector; 26 27 return blk_dread(block_dev, blkstart, blkcnt, buf); 28 } 29 30 static int rkusb_write_sector(struct ums *ums_dev, 31 ulong start, lbaint_t blkcnt, const void *buf) 32 { 33 struct blk_desc *block_dev = &ums_dev->block_dev; 34 lbaint_t blkstart = start + ums_dev->start_sector; 35 36 return blk_dwrite(block_dev, blkstart, blkcnt, buf); 37 } 38 39 static int rkusb_erase_sector(struct ums *ums_dev, 40 ulong start, lbaint_t blkcnt) 41 { 42 struct blk_desc *block_dev = &ums_dev->block_dev; 43 lbaint_t blkstart = start + ums_dev->start_sector; 44 45 return blk_derase(block_dev, blkstart, blkcnt); 46 } 47 48 static void rkusb_fini(void) 49 { 50 int i; 51 52 for (i = 0; i < g_rkusb->ums_cnt; i++) 53 free((void *)g_rkusb->ums[i].name); 54 free(g_rkusb->ums); 55 g_rkusb->ums = NULL; 56 g_rkusb = NULL; 57 g_rkusb->ums_cnt = 0; 58 } 59 60 #define RKUSB_NAME_LEN 16 61 62 static int rkusb_init(const char *devtype, const char *devnums_part_str) 63 { 64 char *s, *t, *devnum_part_str, *name; 65 struct blk_desc *block_dev; 66 disk_partition_t info; 67 int partnum, cnt; 68 int ret = -1; 69 struct ums *ums_new; 70 71 s = strdup(devnums_part_str); 72 if (!s) 73 return -1; 74 75 t = s; 76 g_rkusb->ums_cnt = 0; 77 78 for (;;) { 79 devnum_part_str = strsep(&t, ","); 80 if (!devnum_part_str) 81 break; 82 83 partnum = blk_get_device_part_str(devtype, devnum_part_str, 84 &block_dev, &info, 1); 85 if (partnum < 0) 86 goto cleanup; 87 88 /* f_mass_storage.c assumes SECTOR_SIZE sectors */ 89 if (block_dev->blksz != SECTOR_SIZE) 90 goto cleanup; 91 92 ums_new = realloc(g_rkusb->ums, (g_rkusb->ums_cnt + 1) * 93 sizeof(*g_rkusb->ums)); 94 if (!ums_new) 95 goto cleanup; 96 g_rkusb->ums = ums_new; 97 cnt = g_rkusb->ums_cnt; 98 99 /* Expose all partitions for rockusb command */ 100 g_rkusb->ums[cnt].start_sector = 0; 101 g_rkusb->ums[cnt].num_sectors = block_dev->lba; 102 103 g_rkusb->ums[cnt].read_sector = rkusb_read_sector; 104 g_rkusb->ums[cnt].write_sector = rkusb_write_sector; 105 g_rkusb->ums[cnt].erase_sector = rkusb_erase_sector; 106 107 name = malloc(RKUSB_NAME_LEN); 108 if (!name) 109 goto cleanup; 110 snprintf(name, RKUSB_NAME_LEN, "rkusb disk %d", cnt); 111 g_rkusb->ums[cnt].name = name; 112 g_rkusb->ums[cnt].block_dev = *block_dev; 113 114 printf("RKUSB: LUN %d, dev %d, hwpart %d, sector %#x, count %#x\n", 115 g_rkusb->ums_cnt, 116 g_rkusb->ums[cnt].block_dev.devnum, 117 g_rkusb->ums[cnt].block_dev.hwpart, 118 g_rkusb->ums[cnt].start_sector, 119 g_rkusb->ums[cnt].num_sectors); 120 121 g_rkusb->ums_cnt++; 122 } 123 124 if (g_rkusb->ums_cnt) 125 ret = 0; 126 127 cleanup: 128 free(s); 129 if (ret < 0) 130 rkusb_fini(); 131 132 return ret; 133 } 134 135 static int do_rkusb(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) 136 { 137 const char *usb_controller; 138 const char *devtype; 139 const char *devnum; 140 unsigned int controller_index; 141 int rc; 142 int cable_ready_timeout __maybe_unused; 143 const char *s; 144 145 if (argc != 4) 146 return CMD_RET_USAGE; 147 148 usb_controller = argv[1]; 149 devtype = argv[2]; 150 devnum = argv[3]; 151 152 g_rkusb = &rkusb; 153 rc = rkusb_init(devtype, devnum); 154 if (rc < 0) 155 return CMD_RET_FAILURE; 156 157 controller_index = (unsigned int)(simple_strtoul( 158 usb_controller, NULL, 0)); 159 if (board_usb_init(controller_index, USB_INIT_DEVICE)) { 160 pr_err("Couldn't init USB controller."); 161 rc = CMD_RET_FAILURE; 162 goto cleanup_rkusb; 163 } 164 165 rc = fsg_init(g_rkusb->ums, g_rkusb->ums_cnt); 166 if (rc) { 167 pr_err("fsg_init failed"); 168 rc = CMD_RET_FAILURE; 169 goto cleanup_board; 170 } 171 172 s = env_get("serial#"); 173 if (s) 174 g_dnl_set_serialnumber((char *)s); 175 176 rc = g_dnl_register("rkusb_ums_dnl"); 177 if (rc) { 178 pr_err("g_dnl_register failed"); 179 rc = CMD_RET_FAILURE; 180 goto cleanup_board; 181 } 182 183 /* Timeout unit: seconds */ 184 cable_ready_timeout = UMS_CABLE_READY_TIMEOUT; 185 186 if (!g_dnl_board_usb_cable_connected()) { 187 puts("Please connect USB cable.\n"); 188 189 while (!g_dnl_board_usb_cable_connected()) { 190 if (ctrlc()) { 191 puts("\rCTRL+C - Operation aborted.\n"); 192 rc = CMD_RET_SUCCESS; 193 goto cleanup_register; 194 } 195 if (!cable_ready_timeout) { 196 puts("\rUSB cable not detected.\nCommand exit.\n"); 197 rc = CMD_RET_SUCCESS; 198 goto cleanup_register; 199 } 200 201 printf("\rAuto exit in: %.2d s.", cable_ready_timeout); 202 mdelay(1000); 203 cable_ready_timeout--; 204 } 205 puts("\r\n"); 206 } 207 208 while (1) { 209 usb_gadget_handle_interrupts(controller_index); 210 211 rc = fsg_main_thread(NULL); 212 if (rc) { 213 /* Check I/O error */ 214 if (rc == -EIO) 215 printf("\rCheck USB cable connection\n"); 216 217 /* Check CTRL+C */ 218 if (rc == -EPIPE) 219 printf("\rCTRL+C - Operation aborted\n"); 220 221 rc = CMD_RET_SUCCESS; 222 goto cleanup_register; 223 } 224 } 225 226 cleanup_register: 227 g_dnl_unregister(); 228 cleanup_board: 229 board_usb_cleanup(controller_index, USB_INIT_DEVICE); 230 cleanup_rkusb: 231 rkusb_fini(); 232 233 return rc; 234 } 235 236 U_BOOT_CMD(rockusb, 4, 1, do_rkusb, 237 "Use the rockusb Protocol", 238 "<USB_controller> <devtype> <dev[:part]> e.g. rockusb 0 mmc 0\n" 239 ); 240