fastboot.c 3.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright 2008 - 2009 Windriver, <www.windriver.com>
  4. * Author: Tom Rix <Tom.Rix@windriver.com>
  5. *
  6. * (C) Copyright 2014 Linaro, Ltd.
  7. * Rob Herring <robh@kernel.org>
  8. */
  9. #include <common.h>
  10. #include <command.h>
  11. #include <console.h>
  12. #include <g_dnl.h>
  13. #include <fastboot.h>
  14. #include <net.h>
  15. #include <usb.h>
  16. static int do_fastboot_udp(int argc, char *const argv[],
  17. uintptr_t buf_addr, size_t buf_size)
  18. {
  19. #if CONFIG_IS_ENABLED(UDP_FUNCTION_FASTBOOT)
  20. int err = net_loop(FASTBOOT);
  21. if (err < 0) {
  22. printf("fastboot udp error: %d\n", err);
  23. return CMD_RET_FAILURE;
  24. }
  25. return CMD_RET_SUCCESS;
  26. #else
  27. pr_err("Fastboot UDP not enabled\n");
  28. return CMD_RET_FAILURE;
  29. #endif
  30. }
  31. static int do_fastboot_usb(int argc, char *const argv[],
  32. uintptr_t buf_addr, size_t buf_size)
  33. {
  34. #if CONFIG_IS_ENABLED(USB_FUNCTION_FASTBOOT)
  35. int controller_index;
  36. char *usb_controller;
  37. char *endp;
  38. int ret;
  39. if (argc < 2)
  40. return CMD_RET_USAGE;
  41. usb_controller = argv[1];
  42. controller_index = simple_strtoul(usb_controller, &endp, 0);
  43. if (*endp != '\0') {
  44. pr_err("Error: Wrong USB controller index format\n");
  45. return CMD_RET_FAILURE;
  46. }
  47. ret = board_usb_init(controller_index, USB_INIT_DEVICE);
  48. if (ret) {
  49. pr_err("USB init failed: %d\n", ret);
  50. return CMD_RET_FAILURE;
  51. }
  52. g_dnl_clear_detach();
  53. ret = g_dnl_register("usb_dnl_fastboot");
  54. if (ret)
  55. return ret;
  56. if (!g_dnl_board_usb_cable_connected()) {
  57. puts("\rUSB cable not detected.\n" \
  58. "Command exit.\n");
  59. ret = CMD_RET_FAILURE;
  60. goto exit;
  61. }
  62. while (1) {
  63. if (g_dnl_detach())
  64. break;
  65. if (ctrlc())
  66. break;
  67. usb_gadget_handle_interrupts(controller_index);
  68. }
  69. ret = CMD_RET_SUCCESS;
  70. exit:
  71. g_dnl_unregister();
  72. g_dnl_clear_detach();
  73. board_usb_cleanup(controller_index, USB_INIT_DEVICE);
  74. return ret;
  75. #else
  76. pr_err("Fastboot USB not enabled\n");
  77. return CMD_RET_FAILURE;
  78. #endif
  79. }
  80. static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  81. {
  82. uintptr_t buf_addr = (uintptr_t)NULL;
  83. size_t buf_size = 0;
  84. if (argc < 2)
  85. return CMD_RET_USAGE;
  86. while (argc > 1 && **(argv + 1) == '-') {
  87. char *arg = *++argv;
  88. --argc;
  89. while (*++arg) {
  90. switch (*arg) {
  91. case 'l':
  92. if (--argc <= 0)
  93. return CMD_RET_USAGE;
  94. buf_addr = simple_strtoul(*++argv, NULL, 16);
  95. goto NXTARG;
  96. case 's':
  97. if (--argc <= 0)
  98. return CMD_RET_USAGE;
  99. buf_size = simple_strtoul(*++argv, NULL, 16);
  100. goto NXTARG;
  101. default:
  102. return CMD_RET_USAGE;
  103. }
  104. }
  105. NXTARG:
  106. ;
  107. }
  108. /* Handle case when USB controller param is just '-' */
  109. if (argc == 1) {
  110. pr_err("Error: Incorrect USB controller index\n");
  111. return CMD_RET_USAGE;
  112. }
  113. fastboot_init((void *)buf_addr, buf_size);
  114. if (!strcmp(argv[1], "udp"))
  115. return do_fastboot_udp(argc, argv, buf_addr, buf_size);
  116. if (!strcmp(argv[1], "usb")) {
  117. argv++;
  118. argc--;
  119. }
  120. return do_fastboot_usb(argc, argv, buf_addr, buf_size);
  121. }
  122. #ifdef CONFIG_SYS_LONGHELP
  123. static char fastboot_help_text[] =
  124. "[-l addr] [-s size] usb <controller> | udp\n"
  125. "\taddr - address of buffer used during data transfers ("
  126. __stringify(CONFIG_FASTBOOT_BUF_ADDR) ")\n"
  127. "\tsize - size of buffer used during data transfers ("
  128. __stringify(CONFIG_FASTBOOT_BUF_SIZE) ")"
  129. ;
  130. #endif
  131. U_BOOT_CMD(
  132. fastboot, CONFIG_SYS_MAXARGS, 1, do_fastboot,
  133. "run as a fastboot usb or udp device", fastboot_help_text
  134. );