drivers/input/serio/i8042-ip22io.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef _I8042_IP22_H
   3 #define _I8042_IP22_H
   4
   5 #include <asm/sgi/ioc.h>
   6 #include <asm/sgi/ip22.h>
   7
   8
   9 /*
  10  * Names.
  11  */
  12
  13 #define I8042_KBD_PHYS_DESC "hpc3ps2/serio0"
  14 #define I8042_AUX_PHYS_DESC "hpc3ps2/serio1"
  15 #define I8042_MUX_PHYS_DESC "hpc3ps2/serio%d"
  16
  17 /*
  18  * IRQs.
  19  */
  20
  21 #define I8042_KBD_IRQ SGI_KEYBD_IRQ
  22 #define I8042_AUX_IRQ SGI_KEYBD_IRQ
  23
  24 /*
  25  * Register numbers.
  26  */
  27
  28 #define I8042_COMMAND_REG       ((unsigned long)&sgioc->kbdmouse.command)
  29 #define I8042_STATUS_REG        ((unsigned long)&sgioc->kbdmouse.command)
  30 #define I8042_DATA_REG          ((unsigned long)&sgioc->kbdmouse.data)
  31
  32 static inline int i8042_read_data(void)
  33 {
  34         return sgioc->kbdmouse.data;
  35 }
  36
  37 static inline int i8042_read_status(void)
  38 {
  39         return sgioc->kbdmouse.command;
  40 }
  41
  42 static inline void i8042_write_data(int val)
  43 {
  44         sgioc->kbdmouse.data = val;
  45 }
  46
  47 static inline void i8042_write_command(int val)
  48 {
  49         sgioc->kbdmouse.command = val;
  50 }
  51
  52 static inline int i8042_platform_init(void)
  53 {
  54 #if 0
  55         /* XXX sgi_kh is a virtual address */
  56         if (!request_mem_region(sgi_kh, sizeof(struct hpc_keyb), "i8042"))
  57                 return -EBUSY;
  58 #endif
  59
  60         i8042_reset = I8042_RESET_ALWAYS;
  61
  62         return 0;
  63 }
  64
  65 static inline void i8042_platform_exit(void)
  66 {
  67 #if 0
  68         release_mem_region(JAZZ_KEYBOARD_ADDRESS, sizeof(struct hpc_keyb));
  69 #endif
  70 }
  71
  72 #endif /* _I8042_IP22_H */