LXR linux/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
  27static inline int i8042_read_data(void)
  28{
  29        return jazz_kh->data;
  30}
  31
  32static inline int i8042_read_status(void)
  33{
  34        return jazz_kh->command;
  35}
  36
  37static inline void i8042_write_data(int val)
  38{
  39        jazz_kh->data = val;
  40}
  41
  42static inline void i8042_write_command(int val)
  43{
  44        jazz_kh->command = val;
  45}
  46
  47static 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
  58static 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 */
  66