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  */
  19 static int i8042_kbd_irq;
  20 static int i8042_aux_irq;
  21 #define I8042_KBD_IRQ i8042_kbd_irq
  22 #define I8042_AUX_IRQ i8042_aux_irq
  23
  24 static void __iomem *kbd_iobase;
  25
  26 #define I8042_COMMAND_REG       (kbd_iobase + 0x64UL)
  27 #define I8042_DATA_REG          (kbd_iobase + 0x60UL)
  28
  29 static inline int i8042_read_data(void)
  30 {
  31         return readb(kbd_iobase + 0x60UL);
  32 }
  33
  34 static inline int i8042_read_status(void)
  35 {
  36         return readb(kbd_iobase + 0x64UL);
  37 }
  38
  39 static inline void i8042_write_data(int val)
  40 {
  41         writeb(val, kbd_iobase + 0x60UL);
  42 }
  43
  44 static inline void i8042_write_command(int val)
  45 {
  46         writeb(val, kbd_iobase + 0x64UL);
  47 }
  48 static 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
  66 static inline void i8042_platform_exit(void)
  67 {
  68
  69 }
  70
  71 #endif /* _I8042_SNIRM_H */