LXR linux/drivers/input/serio/i8042-ppcio.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2#ifndef _I8042_PPCIO_H
   3#define _I8042_PPCIO_H
   4
   5
   6#if defined(CONFIG_WALNUT)
   7
   8#define I8042_KBD_IRQ 25
   9#define I8042_AUX_IRQ 26
  10
  11#define I8042_KBD_PHYS_DESC "walnutps2/serio0"
  12#define I8042_AUX_PHYS_DESC "walnutps2/serio1"
  13#define I8042_MUX_PHYS_DESC "walnutps2/serio%d"
  14
  15extern void *kb_cs;
  16extern void *kb_data;
  17
  18#define I8042_COMMAND_REG (*(int *)kb_cs)
  19#define I8042_DATA_REG (*(int *)kb_data)
  20
  21static inline int i8042_read_data(void)
  22{
  23        return readb(kb_data);
  24}
  25
  26static inline int i8042_read_status(void)
  27{
  28        return readb(kb_cs);
  29}
  30
  31static inline void i8042_write_data(int val)
  32{
  33        writeb(val, kb_data);
  34}
  35
  36static inline void i8042_write_command(int val)
  37{
  38        writeb(val, kb_cs);
  39}
  40
  41static inline int i8042_platform_init(void)
  42{
  43        i8042_reset = I8042_RESET_ALWAYS;
  44        return 0;
  45}
  46
  47static inline void i8042_platform_exit(void)
  48{
  49}
  50
  51#else
  52
  53#include "i8042-io.h"
  54
  55#endif
  56
  57#endif /* _I8042_PPCIO_H */
  58