include/asm-arm/arch-ebsa285/keyboard.h

   1 /*
   2  * linux/include/asm-arm/arch-ebsa285/keyboard.h
   3  *
   4  * Keyboard driver definitions for EBSA285 architecture
   5  *
   6  * Copyright (C) 1998-2001 Russell King
   7  * (C) 1998 Phil Blundell
   8  */
   9 #include <linux/config.h>
  10 #include <linux/ioport.h>
  11 #include <asm/irq.h>
  12 #include <asm/system.h>
  13
  14 #define KEYBOARD_IRQ            IRQ_ISA_KEYBOARD
  15 #define NR_SCANCODES            128
  16
  17 #define kbd_disable_irq()       do { } while (0)
  18 #define kbd_enable_irq()        do { } while (0)
  19
  20 extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
  21 extern int pckbd_getkeycode(unsigned int scancode);
  22 extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,
  23                            char raw_mode);
  24 extern char pckbd_unexpected_up(unsigned char keycode);
  25 extern void pckbd_leds(unsigned char leds);
  26 extern void pckbd_init_hw(void);
  27 extern unsigned char pckbd_sysrq_xlate[128];
  28
  29 static inline void kbd_init_hw(void)
  30 {
  31         if (have_isa_bridge) {
  32                 k_setkeycode    = pckbd_setkeycode;
  33                 k_getkeycode    = pckbd_getkeycode;
  34                 k_translate     = pckbd_translate;
  35                 k_unexpected_up = pckbd_unexpected_up;
  36                 k_leds          = pckbd_leds;
  37 #ifdef CONFIG_MAGIC_SYSRQ
  38                 k_sysrq_key     = 0x54;
  39                 k_sysrq_xlate   = pckbd_sysrq_xlate;
  40 #endif
  41                 pckbd_init_hw();
  42         }
  43 }
  44
  45
  46 /*
  47  * The rest of this file is to do with supporting pc_keyb.c
  48  */
  49
  50 /* resource allocation */
  51 #define kbd_request_region()    request_region(0x60, 16, "keyboard")
  52 #define kbd_request_irq(handler) request_irq(KEYBOARD_IRQ, handler, 0, \
  53                                              "keyboard", NULL)
  54
  55 /* How to access the keyboard macros on this platform.  */
  56 #define kbd_read_input() inb(KBD_DATA_REG)
  57 #define kbd_read_status() inb(KBD_STATUS_REG)
  58 #define kbd_write_output(val) outb(val, KBD_DATA_REG)
  59 #define kbd_write_command(val) outb(val, KBD_CNTL_REG)
  60
  61 /* Some stoneage hardware needs delays after some operations.  */
  62 #define kbd_pause() do { } while(0)
  63
  64 #define aux_request_irq(hand, dev_id)                                   \
  65         request_irq(AUX_IRQ, hand, SA_SHIRQ, "PS/2 Mouse", dev_id)
  66
  67 #define aux_free_irq(dev_id) free_irq(AUX_IRQ, dev_id)
  68