demo.c 2.8 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (c) 2013 Google, Inc
  4. *
  5. * (C) Copyright 2012
  6. * Pavel Herrmann <morpheus.ibis@gmail.com>
  7. */
  8. #include <common.h>
  9. #include <dm-demo.h>
  10. #include <mapmem.h>
  11. #include <asm/io.h>
  12. struct udevice *demo_dev;
  13. static int do_demo_hello(cmd_tbl_t *cmdtp, int flag, int argc,
  14. char * const argv[])
  15. {
  16. int ch = 0;
  17. if (argc)
  18. ch = *argv[0];
  19. return demo_hello(demo_dev, ch);
  20. }
  21. static int do_demo_status(cmd_tbl_t *cmdtp, int flag, int argc,
  22. char * const argv[])
  23. {
  24. int status;
  25. int ret;
  26. ret = demo_status(demo_dev, &status);
  27. if (ret)
  28. return ret;
  29. printf("Status: %d\n", status);
  30. return 0;
  31. }
  32. static int do_demo_light(cmd_tbl_t *cmdtp, int flag, int argc,
  33. char * const argv[])
  34. {
  35. int light;
  36. int ret;
  37. if (argc) {
  38. light = simple_strtoul(argv[0], NULL, 16);
  39. ret = demo_set_light(demo_dev, light);
  40. } else {
  41. ret = demo_get_light(demo_dev);
  42. if (ret >= 0) {
  43. printf("Light: %x\n", ret);
  44. ret = 0;
  45. }
  46. }
  47. return ret;
  48. }
  49. int do_demo_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  50. {
  51. struct udevice *dev;
  52. int i, ret;
  53. puts("Demo uclass entries:\n");
  54. for (i = 0, ret = uclass_first_device(UCLASS_DEMO, &dev);
  55. dev;
  56. ret = uclass_next_device(&dev)) {
  57. printf("entry %d - instance %08x, ops %08x, platdata %08x\n",
  58. i++, (uint)map_to_sysmem(dev),
  59. (uint)map_to_sysmem(dev->driver->ops),
  60. (uint)map_to_sysmem(dev_get_platdata(dev)));
  61. }
  62. return cmd_process_error(cmdtp, ret);
  63. }
  64. static cmd_tbl_t demo_commands[] = {
  65. U_BOOT_CMD_MKENT(list, 0, 1, do_demo_list, "", ""),
  66. U_BOOT_CMD_MKENT(hello, 2, 1, do_demo_hello, "", ""),
  67. U_BOOT_CMD_MKENT(light, 2, 1, do_demo_light, "", ""),
  68. U_BOOT_CMD_MKENT(status, 1, 1, do_demo_status, "", ""),
  69. };
  70. static int do_demo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  71. {
  72. cmd_tbl_t *demo_cmd;
  73. int devnum = 0;
  74. int ret;
  75. if (argc < 2)
  76. return CMD_RET_USAGE;
  77. demo_cmd = find_cmd_tbl(argv[1], demo_commands,
  78. ARRAY_SIZE(demo_commands));
  79. argc -= 2;
  80. argv += 2;
  81. if ((!demo_cmd || argc > demo_cmd->maxargs) ||
  82. ((demo_cmd->name[0] != 'l') && (argc < 1)))
  83. return CMD_RET_USAGE;
  84. if (argc) {
  85. devnum = simple_strtoul(argv[0], NULL, 10);
  86. ret = uclass_get_device(UCLASS_DEMO, devnum, &demo_dev);
  87. if (ret)
  88. return cmd_process_error(cmdtp, ret);
  89. argc--;
  90. argv++;
  91. } else {
  92. demo_dev = NULL;
  93. if (demo_cmd->cmd != do_demo_list)
  94. return CMD_RET_USAGE;
  95. }
  96. ret = demo_cmd->cmd(demo_cmd, flag, argc, argv);
  97. return cmd_process_error(demo_cmd, ret);
  98. }
  99. U_BOOT_CMD(
  100. demo, 4, 1, do_demo,
  101. "Driver model (dm) demo operations",
  102. "list List available demo devices\n"
  103. "demo hello <num> [<char>] Say hello\n"
  104. "demo light [<num>] Set or get the lights\n"
  105. "demo status <num> Get demo device status\n"
  106. "demo list List available demo devices"
  107. );