/drivers/input/serio/i8042-snirm.h

http://github.com/mirrors/linux · C Header · 71 lines · 48 code · 15 blank · 8 comment · 4 complexity · 7ed064fcade94d64f1d3e98bcf6b7467 MD5 · raw file 

    

  1. /* SPDX-License-Identifier: GPL-2.0-only */
    2. 

  2. #ifndef _I8042_SNIRM_H
    3. 

  3. #define _I8042_SNIRM_H
    4. 

  4. 

  5. #include <asm/sni.h>
    6. 

  6. 

  7. 

  8. /*
    9. 

  9.  * Names.
    10. 

  10.  */
    11. 

  11. 

  12. #define I8042_KBD_PHYS_DESC "onboard/serio0"
    13. 

  13. #define I8042_AUX_PHYS_DESC "onboard/serio1"
    14. 

  14. #define I8042_MUX_PHYS_DESC "onboard/serio%d"
    15. 

  15. 

  16. /*
    17. 

  17.  * IRQs.
    18. 

  18.  */
    19. 

  19. static int i8042_kbd_irq;
    20. 

  20. static int i8042_aux_irq;
    21. 

  21. #define I8042_KBD_IRQ i8042_kbd_irq
    22. 

  22. #define I8042_AUX_IRQ i8042_aux_irq
    23. 

  23. 

  24. static void __iomem *kbd_iobase;
    25. 

  25. 

  26. #define I8042_COMMAND_REG	(kbd_iobase + 0x64UL)
    27. 

  27. #define I8042_DATA_REG		(kbd_iobase + 0x60UL)
    28. 

  28. 

  29. static inline int i8042_read_data(void)
    30. 

  30. {
    31. 

  31. 	return readb(kbd_iobase + 0x60UL);
    32. 

  32. }
    33. 

  33. 

  34. static inline int i8042_read_status(void)
    35. 

  35. {
    36. 

  36. 	return readb(kbd_iobase + 0x64UL);
    37. 

  37. }
    38. 

  38. 

  39. static inline void i8042_write_data(int val)
    40. 

  40. {
    41. 

  41. 	writeb(val, kbd_iobase + 0x60UL);
    42. 

  42. }
    43. 

  43. 

  44. static inline void i8042_write_command(int val)
    45. 

  45. {
    46. 

  46. 	writeb(val, kbd_iobase + 0x64UL);
    47. 

  47. }
    48. 

  48. static inline int i8042_platform_init(void)
    49. 

  49. {
    50. 

  50. 	/* RM200 is strange ... */
    51. 

  51. 	if (sni_brd_type == SNI_BRD_RM200) {
    52. 

  52. 		kbd_iobase = ioremap(0x16000000, 4);
    53. 

  53. 		i8042_kbd_irq = 33;
    54. 

  54. 		i8042_aux_irq = 44;
    55. 

  55. 	} else {
    56. 

  56. 		kbd_iobase = ioremap(0x14000000, 4);
    57. 

  57. 		i8042_kbd_irq = 1;
    58. 

  58. 		i8042_aux_irq = 12;
    59. 

  59. 	}
    60. 

  60. 	if (!kbd_iobase)
    61. 

  61. 		return -ENOMEM;
    62. 

  62. 

  63. 	return 0;
    64. 

  64. }
    65. 

  65. 

  66. static inline void i8042_platform_exit(void)
    67. 

  67. {
    68. 

  68. 

  69. }
    70. 

  70. 

  71. #endif /* _I8042_SNIRM_H */
    72.