include/asm-mips/keyboard.h

   1 /*
   2  * CPU specific parts of the keyboard driver
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * $Id: keyboard.h,v 1.12 1998/09/16 22:52:41 ralf Exp $
   9  */
  10 #ifndef __ASM_MIPS_KEYBOARD_H
  11 #define __ASM_MIPS_KEYBOARD_H
  12
  13 #ifdef __KERNEL__
  14
  15 #include <linux/delay.h>
  16 #include <linux/ioport.h>
  17 #include <asm/bootinfo.h>
  18
  19 #define DISABLE_KBD_DURING_INTERRUPTS 0
  20
  21 extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
  22 extern int pckbd_getkeycode(unsigned int scancode);
  23 extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,
  24                            char raw_mode);
  25 extern char pckbd_unexpected_up(unsigned char keycode);
  26 extern void pckbd_leds(unsigned char leds);
  27 extern void pckbd_init_hw(void);
  28 extern unsigned char pckbd_sysrq_xlate[128];
  29
  30 #define kbd_setkeycode          pckbd_setkeycode
  31 #define kbd_getkeycode          pckbd_getkeycode
  32 #define kbd_translate           pckbd_translate
  33 #define kbd_unexpected_up       pckbd_unexpected_up
  34 #define kbd_leds                pckbd_leds
  35 #define kbd_init_hw             pckbd_init_hw
  36 #define kbd_sysrq_xlate         pckbd_sysrq_xlate
  37
  38 #define SYSRQ_KEY 0x54
  39
  40 /* Some stoneage hardware needs delays after some operations.  */
  41 #define kbd_pause() do { } while(0)
  42
  43 struct kbd_ops {
  44         /* Keyboard driver resource allocation  */
  45         void (*kbd_request_region)(void);
  46         int (*kbd_request_irq)(void (*handler)(int, void *, struct pt_regs *));
  47
  48         /* PSaux driver resource managment  */
  49         int (*aux_request_irq)(void (*handler)(int, void *, struct pt_regs *));
  50         void (*aux_free_irq)(void);
  51
  52         /* Methods to access the keyboard processor's I/O registers  */
  53         unsigned char (*kbd_read_input)(void);
  54         void (*kbd_write_output)(unsigned char val);
  55         void (*kbd_write_command)(unsigned char val);
  56         unsigned char (*kbd_read_status)(void);
  57 };
  58
  59 extern struct kbd_ops *kbd_ops;
  60
  61 /* Do the actual calls via kbd_ops vector  */
  62 #define kbd_request_region() kbd_ops->kbd_request_region()
  63 #define kbd_request_irq(handler) kbd_ops->kbd_request_irq(handler)
  64
  65 #define aux_request_irq(hand, dev_id) kbd_ops->aux_request_irq(hand)
  66 #define aux_free_irq(dev_id) kbd_ops->aux_free_irq()
  67
  68 #define kbd_read_input() kbd_ops->kbd_read_input()
  69 #define kbd_write_output(val) kbd_ops->kbd_write_output(val)
  70 #define kbd_write_command(val) kbd_ops->kbd_write_command(val)
  71 #define kbd_read_status() kbd_ops->kbd_read_status()
  72
  73 #endif /* __KERNEL */
  74
  75 #endif /* __ASM_MIPS_KEYBOARD_H */