drivers/input/serio/i8042-jazzio.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef _I8042_JAZZ_H
   3 #define _I8042_JAZZ_H
   4
   5 #include <asm/jazz.h>
   6
   7
   8 /*
   9  * Names.
  10  */
  11
  12 #define I8042_KBD_PHYS_DESC "R4030/serio0"
  13 #define I8042_AUX_PHYS_DESC "R4030/serio1"
  14 #define I8042_MUX_PHYS_DESC "R4030/serio%d"
  15
  16 /*
  17  * IRQs.
  18  */
  19
  20 #define I8042_KBD_IRQ JAZZ_KEYBOARD_IRQ
  21 #define I8042_AUX_IRQ JAZZ_MOUSE_IRQ
  22
  23 #define I8042_COMMAND_REG       ((unsigned long)&jazz_kh->command)
  24 #define I8042_STATUS_REG        ((unsigned long)&jazz_kh->command)
  25 #define I8042_DATA_REG          ((unsigned long)&jazz_kh->data)
  26
  27 static inline int i8042_read_data(void)
  28 {
  29         return jazz_kh->data;
  30 }
  31
  32 static inline int i8042_read_status(void)
  33 {
  34         return jazz_kh->command;
  35 }
  36
  37 static inline void i8042_write_data(int val)
  38 {
  39         jazz_kh->data = val;
  40 }
  41
  42 static inline void i8042_write_command(int val)
  43 {
  44         jazz_kh->command = val;
  45 }
  46
  47 static inline int i8042_platform_init(void)
  48 {
  49 #if 0
  50         /* XXX JAZZ_KEYBOARD_ADDRESS is a virtual address */
  51         if (!request_mem_region(JAZZ_KEYBOARD_ADDRESS, 2, "i8042"))
  52                 return -EBUSY;
  53 #endif
  54
  55         return 0;
  56 }
  57
  58 static inline void i8042_platform_exit(void)
  59 {
  60 #if 0
  61         release_mem_region(JAZZ_KEYBOARD_ADDRESS, 2);
  62 #endif
  63 }
  64
  65 #endif /* _I8042_JAZZ_H */