emu10k1-gp.c 2.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Copyright (c) 2001 Vojtech Pavlik
  4. */
  5. /*
  6. * EMU10k1 - SB Live / Audigy - gameport driver for Linux
  7. */
  8. /*
  9. */
  10. #include <asm/io.h>
  11. #include <linux/module.h>
  12. #include <linux/ioport.h>
  13. #include <linux/gameport.h>
  14. #include <linux/slab.h>
  15. #include <linux/pci.h>
  16. MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
  17. MODULE_DESCRIPTION("EMU10k1 gameport driver");
  18. MODULE_LICENSE("GPL");
  19. struct emu {
  20. struct pci_dev *dev;
  21. struct gameport *gameport;
  22. int io;
  23. int size;
  24. };
  25. static const struct pci_device_id emu_tbl[] = {
  26. { 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
  27. { 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
  28. { 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
  29. { 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
  30. { 0, }
  31. };
  32. MODULE_DEVICE_TABLE(pci, emu_tbl);
  33. static int emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
  34. {
  35. struct emu *emu;
  36. struct gameport *port;
  37. int error;
  38. emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
  39. port = gameport_allocate_port();
  40. if (!emu || !port) {
  41. printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
  42. error = -ENOMEM;
  43. goto err_out_free;
  44. }
  45. error = pci_enable_device(pdev);
  46. if (error)
  47. goto err_out_free;
  48. emu->io = pci_resource_start(pdev, 0);
  49. emu->size = pci_resource_len(pdev, 0);
  50. emu->dev = pdev;
  51. emu->gameport = port;
  52. gameport_set_name(port, "EMU10K1");
  53. gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
  54. port->dev.parent = &pdev->dev;
  55. port->io = emu->io;
  56. if (!request_region(emu->io, emu->size, "emu10k1-gp")) {
  57. printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n",
  58. emu->io, emu->io + emu->size - 1);
  59. error = -EBUSY;
  60. goto err_out_disable_dev;
  61. }
  62. pci_set_drvdata(pdev, emu);
  63. gameport_register_port(port);
  64. return 0;
  65. err_out_disable_dev:
  66. pci_disable_device(pdev);
  67. err_out_free:
  68. gameport_free_port(port);
  69. kfree(emu);
  70. return error;
  71. }
  72. static void emu_remove(struct pci_dev *pdev)
  73. {
  74. struct emu *emu = pci_get_drvdata(pdev);
  75. gameport_unregister_port(emu->gameport);
  76. release_region(emu->io, emu->size);
  77. kfree(emu);
  78. pci_disable_device(pdev);
  79. }
  80. static struct pci_driver emu_driver = {
  81. .name = "Emu10k1_gameport",
  82. .id_table = emu_tbl,
  83. .probe = emu_probe,
  84. .remove = emu_remove,
  85. };
  86. module_pci_driver(emu_driver);