rapide.c 2.0 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /*
  3. * Copyright (c) 1996-2002 Russell King.
  4. */
  5. #include <linux/module.h>
  6. #include <linux/blkdev.h>
  7. #include <linux/errno.h>
  8. #include <linux/ide.h>
  9. #include <linux/init.h>
  10. #include <asm/ecard.h>
  11. static const struct ide_port_info rapide_port_info = {
  12. .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
  13. .chipset = ide_generic,
  14. };
  15. static void rapide_setup_ports(struct ide_hw *hw, void __iomem *base,
  16. void __iomem *ctrl, unsigned int sz, int irq)
  17. {
  18. unsigned long port = (unsigned long)base;
  19. int i;
  20. for (i = 0; i <= 7; i++) {
  21. hw->io_ports_array[i] = port;
  22. port += sz;
  23. }
  24. hw->io_ports.ctl_addr = (unsigned long)ctrl;
  25. hw->irq = irq;
  26. }
  27. static int rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
  28. {
  29. void __iomem *base;
  30. struct ide_host *host;
  31. int ret;
  32. struct ide_hw hw, *hws[] = { &hw };
  33. ret = ecard_request_resources(ec);
  34. if (ret)
  35. goto out;
  36. base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
  37. if (!base) {
  38. ret = -ENOMEM;
  39. goto release;
  40. }
  41. memset(&hw, 0, sizeof(hw));
  42. rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq);
  43. hw.dev = &ec->dev;
  44. ret = ide_host_add(&rapide_port_info, hws, 1, &host);
  45. if (ret)
  46. goto release;
  47. ecard_set_drvdata(ec, host);
  48. goto out;
  49. release:
  50. ecard_release_resources(ec);
  51. out:
  52. return ret;
  53. }
  54. static void rapide_remove(struct expansion_card *ec)
  55. {
  56. struct ide_host *host = ecard_get_drvdata(ec);
  57. ecard_set_drvdata(ec, NULL);
  58. ide_host_remove(host);
  59. ecard_release_resources(ec);
  60. }
  61. static struct ecard_id rapide_ids[] = {
  62. { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
  63. { 0xffff, 0xffff }
  64. };
  65. static struct ecard_driver rapide_driver = {
  66. .probe = rapide_probe,
  67. .remove = rapide_remove,
  68. .id_table = rapide_ids,
  69. .drv = {
  70. .name = "rapide",
  71. },
  72. };
  73. static int __init rapide_init(void)
  74. {
  75. return ecard_register_driver(&rapide_driver);
  76. }
  77. static void __exit rapide_exit(void)
  78. {
  79. ecard_remove_driver(&rapide_driver);
  80. }
  81. MODULE_LICENSE("GPL");
  82. MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
  83. module_init(rapide_init);
  84. module_exit(rapide_exit);