sandbox.c 2.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2018
  4. * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
  5. */
  6. #include <common.h>
  7. #include <dm.h>
  8. #include <sysinfo.h>
  9. #include "sandbox.h"
  10. struct sysinfo_sandbox_priv {
  11. bool called_detect;
  12. int test_i1;
  13. int test_i2;
  14. };
  15. char vacation_spots[][64] = {"R'lyeh", "Dreamlands", "Plateau of Leng",
  16. "Carcosa", "Yuggoth", "The Nameless City"};
  17. int sysinfo_sandbox_detect(struct udevice *dev)
  18. {
  19. struct sysinfo_sandbox_priv *priv = dev_get_priv(dev);
  20. priv->called_detect = true;
  21. priv->test_i2 = 100;
  22. return 0;
  23. }
  24. int sysinfo_sandbox_get_bool(struct udevice *dev, int id, bool *val)
  25. {
  26. struct sysinfo_sandbox_priv *priv = dev_get_priv(dev);
  27. switch (id) {
  28. case BOOL_CALLED_DETECT:
  29. /* Checks if the dectect method has been called */
  30. *val = priv->called_detect;
  31. return 0;
  32. }
  33. return -ENOENT;
  34. }
  35. int sysinfo_sandbox_get_int(struct udevice *dev, int id, int *val)
  36. {
  37. struct sysinfo_sandbox_priv *priv = dev_get_priv(dev);
  38. switch (id) {
  39. case INT_TEST1:
  40. *val = priv->test_i1;
  41. /* Increments with every call */
  42. priv->test_i1++;
  43. return 0;
  44. case INT_TEST2:
  45. *val = priv->test_i2;
  46. /* Decrements with every call */
  47. priv->test_i2--;
  48. return 0;
  49. }
  50. return -ENOENT;
  51. }
  52. int sysinfo_sandbox_get_str(struct udevice *dev, int id, size_t size, char *val)
  53. {
  54. struct sysinfo_sandbox_priv *priv = dev_get_priv(dev);
  55. int i1 = priv->test_i1;
  56. int i2 = priv->test_i2;
  57. int index = (i1 * i2) % ARRAY_SIZE(vacation_spots);
  58. switch (id) {
  59. case STR_VACATIONSPOT:
  60. /* Picks a vacation spot depending on i1 and i2 */
  61. snprintf(val, size, vacation_spots[index]);
  62. return 0;
  63. }
  64. return -ENOENT;
  65. }
  66. static const struct udevice_id sysinfo_sandbox_ids[] = {
  67. { .compatible = "sandbox,sysinfo-sandbox" },
  68. { /* sentinel */ }
  69. };
  70. static const struct sysinfo_ops sysinfo_sandbox_ops = {
  71. .detect = sysinfo_sandbox_detect,
  72. .get_bool = sysinfo_sandbox_get_bool,
  73. .get_int = sysinfo_sandbox_get_int,
  74. .get_str = sysinfo_sandbox_get_str,
  75. };
  76. int sysinfo_sandbox_probe(struct udevice *dev)
  77. {
  78. return 0;
  79. }
  80. U_BOOT_DRIVER(sysinfo_sandbox) = {
  81. .name = "sysinfo_sandbox",
  82. .id = UCLASS_SYSINFO,
  83. .of_match = sysinfo_sandbox_ids,
  84. .ops = &sysinfo_sandbox_ops,
  85. .priv_auto = sizeof(struct sysinfo_sandbox_priv),
  86. .probe = sysinfo_sandbox_probe,
  87. };