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

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2#ifndef _I8042_SNIRM_H
   3#define _I8042_SNIRM_H
   4
   5#include <asm/sni.h>
   6
   7
   8/*
   9 * Names.
  10 */
  11
  12#define I8042_KBD_PHYS_DESC "onboard/serio0"
  13#define I8042_AUX_PHYS_DESC "onboard/serio1"
  14#define I8042_MUX_PHYS_DESC "onboard/serio%d"
  15
  16/*
  17 * IRQs.
  18 */
  19static int i8042_kbd_irq;
  20static int i8042_aux_irq;
  21#define I8042_KBD_IRQ i8042_kbd_irq
  22#define I8042_AUX_IRQ i8042_aux_irq
  23
  24static void __iomem *kbd_iobase;
  25
  26#define I8042_COMMAND_REG       (kbd_iobase + 0x64UL)
  27#define I8042_DATA_REG          (kbd_iobase + 0x60UL)
  28
  29static inline int i8042_read_data(void)
  30{
  31        return readb(kbd_iobase + 0x60UL);
  32}
  33
  34static inline int i8042_read_status(void)
  35{
  36        return readb(kbd_iobase + 0x64UL);
  37}
  38
  39static inline void i8042_write_data(int val)
  40{
  41        writeb(val, kbd_iobase + 0x60UL);
  42}
  43
  44static inline void i8042_write_command(int val)
  45{
  46        writeb(val, kbd_iobase + 0x64UL);
  47}
  48static inline int i8042_platform_init(void)
  49{
  50        /* RM200 is strange ... */
  51        if (sni_brd_type == SNI_BRD_RM200) {
  52                kbd_iobase = ioremap(0x16000000, 4);
  53                i8042_kbd_irq = 33;
  54                i8042_aux_irq = 44;
  55        } else {
  56                kbd_iobase = ioremap(0x14000000, 4);
  57                i8042_kbd_irq = 1;
  58                i8042_aux_irq = 12;
  59        }
  60        if (!kbd_iobase)
  61                return -ENOMEM;
  62
  63        return 0;
  64}
  65
  66static inline void i8042_platform_exit(void)
  67{
  68
  69}
  70
  71#endif /* _I8042_SNIRM_H */
  72