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 int ret; 27 28 if ((blkstart + blkcnt) > RKUSB_READ_LIMIT_ADDR) { 29 memset(buf, 0xcc, blkcnt * SECTOR_SIZE); 30 return blkcnt; 31 } else { 32 ret = blk_dread(block_dev, blkstart, blkcnt, buf); 33 if (!ret) 34 ret = -EIO; 35 return ret; 36 } 37 } 38 39 static int rkusb_write_sector(struct ums *ums_dev, 40 ulong start, lbaint_t blkcnt, const void *buf) 41 { 42 struct blk_desc *block_dev = &ums_dev->block_dev; 43 lbaint_t blkstart = start + ums_dev->start_sector; 44 int ret; 45 46 if (block_dev->if_type == IF_TYPE_MTD) 47 block_dev->op_flag |= BLK_MTD_CONT_WRITE; 48 49 ret = blk_dwrite(block_dev, blkstart, blkcnt, buf); 50 if (!ret) 51 ret = -EIO; 52 53 if (block_dev->if_type == IF_TYPE_MTD) 54 block_dev->op_flag &= ~(BLK_MTD_CONT_WRITE); 55 return ret; 56 } 57 58 static int rkusb_erase_sector(struct ums *ums_dev, 59 ulong start, lbaint_t blkcnt) 60 { 61 struct blk_desc *block_dev = &ums_dev->block_dev; 62 lbaint_t blkstart = start + ums_dev->start_sector; 63 64 return blk_derase(block_dev, blkstart, blkcnt); 65 } 66 67 static void rkusb_fini(void) 68 { 69 int i; 70 71 for (i = 0; i < g_rkusb->ums_cnt; i++) 72 free((void *)g_rkusb->ums[i].name); 73 free(g_rkusb->ums); 74 g_rkusb->ums = NULL; 75 g_rkusb = NULL; 76 g_rkusb->ums_cnt = 0; 77 } 78 79 #define RKUSB_NAME_LEN 16 80 81 static int rkusb_init(const char *devtype, const char *devnums_part_str) 82 { 83 char *s, *t, *devnum_part_str, *name; 84 struct blk_desc *block_dev; 85 disk_partition_t info; 86 int partnum, cnt; 87 int ret = -1; 88 struct ums *ums_new; 89 90 s = strdup(devnums_part_str); 91 if (!s) 92 return -1; 93 94 t = s; 95 g_rkusb->ums_cnt = 0; 96 97 for (;;) { 98 devnum_part_str = strsep(&t, ","); 99 if (!devnum_part_str) 100 break; 101 102 partnum = blk_get_device_part_str(devtype, devnum_part_str, 103 &block_dev, &info, 1); 104 if (partnum < 0) 105 goto cleanup; 106 107 /* f_mass_storage.c assumes SECTOR_SIZE sectors */ 108 if (block_dev->blksz != SECTOR_SIZE) 109 goto cleanup; 110 111 ums_new = realloc(g_rkusb->ums, (g_rkusb->ums_cnt + 1) * 112 sizeof(*g_rkusb->ums)); 113 if (!ums_new) 114 goto cleanup; 115 g_rkusb->ums = ums_new; 116 cnt = g_rkusb->ums_cnt; 117 118 /* Expose all partitions for rockusb command */ 119 g_rkusb->ums[cnt].start_sector = 0; 120 g_rkusb->ums[cnt].num_sectors = block_dev->lba; 121 122 g_rkusb->ums[cnt].read_sector = rkusb_read_sector; 123 g_rkusb->ums[cnt].write_sector = rkusb_write_sector; 124 g_rkusb->ums[cnt].erase_sector = rkusb_erase_sector; 125 126 name = malloc(RKUSB_NAME_LEN); 127 if (!name) 128 goto cleanup; 129 snprintf(name, RKUSB_NAME_LEN, "rkusb disk %d", cnt); 130 g_rkusb->ums[cnt].name = name; 131 g_rkusb->ums[cnt].block_dev = *block_dev; 132 133 printf("RKUSB: LUN %d, dev %d, hwpart %d, sector %#x, count %#x\n", 134 g_rkusb->ums_cnt, 135 g_rkusb->ums[cnt].block_dev.devnum, 136 g_rkusb->ums[cnt].block_dev.hwpart, 137 g_rkusb->ums[cnt].start_sector, 138 g_rkusb->ums[cnt].num_sectors); 139 140 g_rkusb->ums_cnt++; 141 } 142 143 if (g_rkusb->ums_cnt) 144 ret = 0; 145 146 cleanup: 147 free(s); 148 if (ret < 0) 149 rkusb_fini(); 150 151 return ret; 152 } 153 154 static int do_rkusb(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) 155 { 156 const char *usb_controller; 157 const char *devtype; 158 const char *devnum; 159 unsigned int controller_index; 160 int rc; 161 int cable_ready_timeout __maybe_unused; 162 const char *s; 163 164 if (argc != 4) 165 return CMD_RET_USAGE; 166 167 usb_controller = argv[1]; 168 devtype = argv[2]; 169 devnum = argv[3]; 170 171 if (!strcmp(devtype, "mmc") && !strcmp(devnum, "1")) { 172 pr_err("Forbid to flash mmc 1(sdcard)\n"); 173 return CMD_RET_FAILURE; 174 } 175 176 g_rkusb = &rkusb; 177 rc = rkusb_init(devtype, devnum); 178 if (rc < 0) 179 return CMD_RET_FAILURE; 180 181 if (g_rkusb->ums[0].block_dev.if_type == IF_TYPE_MTD && 182 g_rkusb->ums[0].block_dev.devnum == BLK_MTD_NAND) { 183 #ifdef CONFIG_CMD_GO 184 pr_err("Enter bootrom rockusb...\n"); 185 flushc(); 186 run_command("rbrom", 0); 187 #else 188 pr_err("rockusb: count not support loader upgrade!\n"); 189 #endif 190 } 191 192 controller_index = (unsigned int)(simple_strtoul( 193 usb_controller, NULL, 0)); 194 rc = usb_gadget_initialize(controller_index); 195 if (rc) { 196 pr_err("Couldn't init USB controller."); 197 rc = CMD_RET_FAILURE; 198 goto cleanup_rkusb; 199 } 200 201 rc = fsg_init(g_rkusb->ums, g_rkusb->ums_cnt); 202 if (rc) { 203 pr_err("fsg_init failed"); 204 rc = CMD_RET_FAILURE; 205 goto cleanup_board; 206 } 207 208 s = env_get("serial#"); 209 if (s) { 210 char *sn = (char *)calloc(strlen(s) + 1, sizeof(char)); 211 char *sn_p = sn; 212 213 if (!sn) 214 goto cleanup_board; 215 216 memcpy(sn, s, strlen(s)); 217 while (*sn_p) { 218 if (*sn_p == '\\' || *sn_p == '/') 219 *sn_p = '_'; 220 sn_p++; 221 } 222 223 g_dnl_set_serialnumber(sn); 224 free(sn); 225 } 226 227 rc = g_dnl_register("rkusb_ums_dnl"); 228 if (rc) { 229 pr_err("g_dnl_register failed"); 230 rc = CMD_RET_FAILURE; 231 goto cleanup_board; 232 } 233 234 /* Timeout unit: seconds */ 235 cable_ready_timeout = UMS_CABLE_READY_TIMEOUT; 236 237 if (!g_dnl_board_usb_cable_connected()) { 238 puts("Please connect USB cable.\n"); 239 240 while (!g_dnl_board_usb_cable_connected()) { 241 if (ctrlc()) { 242 puts("\rCTRL+C - Operation aborted.\n"); 243 rc = CMD_RET_SUCCESS; 244 goto cleanup_register; 245 } 246 if (!cable_ready_timeout) { 247 puts("\rUSB cable not detected.\nCommand exit.\n"); 248 rc = CMD_RET_SUCCESS; 249 goto cleanup_register; 250 } 251 252 printf("\rAuto exit in: %.2d s.", cable_ready_timeout); 253 mdelay(1000); 254 cable_ready_timeout--; 255 } 256 puts("\r\n"); 257 } 258 259 while (1) { 260 usb_gadget_handle_interrupts(controller_index); 261 262 rc = fsg_main_thread(NULL); 263 if (rc) { 264 /* Check I/O error */ 265 if (rc == -EIO) 266 printf("\rCheck USB cable connection\n"); 267 268 /* Check CTRL+C */ 269 if (rc == -EPIPE) 270 printf("\rCTRL+C - Operation aborted\n"); 271 272 rc = CMD_RET_SUCCESS; 273 goto cleanup_register; 274 } 275 } 276 277 cleanup_register: 278 g_dnl_unregister(); 279 cleanup_board: 280 usb_gadget_release(controller_index); 281 cleanup_rkusb: 282 rkusb_fini(); 283 284 return rc; 285 } 286 287 U_BOOT_CMD_ALWAYS(rockusb, 4, 1, do_rkusb, 288 "Use the rockusb Protocol", 289 "<USB_controller> <devtype> <dev[:part]> e.g. rockusb 0 mmc 0\n" 290 ); 291