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

   1 /*
   2  * linux/include/asm-arm/arch-shark/keyboard.h
   3  * by Alexander Schulz
   4  *
   5  * Derived from linux/include/asm-arm/arch-ebsa285/keyboard.h
   6  * (C) 1998 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/io.h>
  13 #include <asm/system.h>
  14
  15 #define KEYBOARD_IRQ                    IRQ_ISA_KEYBOARD
  16 #define NR_SCANCODES                    128
  17
  18 #define kbd_disable_irq()               do { } while (0)
  19 #define kbd_enable_irq()                do { } while (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 static inline void kbd_init_hw(void)
  31 {
  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  * PC Keyboard specifics
  46  */
  47
  48 /* resource allocation */
  49 #define kbd_request_region() request_region(0x60, 16, "keyboard")
  50 #define kbd_request_irq(handler) request_irq(KEYBOARD_IRQ, handler, 0, \
  51                                              "keyboard", NULL)
  52
  53 /* How to access the keyboard macros on this platform.  */
  54 #define kbd_read_input() inb(KBD_DATA_REG)
  55 #define kbd_read_status() inb(KBD_STATUS_REG)
  56 #define kbd_write_output(val) outb(val, KBD_DATA_REG)
  57 #define kbd_write_command(val) outb(val, KBD_CNTL_REG)
  58
  59 /* Some stoneage hardware needs delays after some operations.  */
  60 #define kbd_pause() do { } while(0)
  61
  62 /*
  63  * Machine specific bits for the PS/2 driver
  64  */
  65 #define aux_request_irq(hand, dev_id)                                   \
  66         request_irq(AUX_IRQ, hand, SA_SHIRQ, "PS/2 Mouse", dev_id)
  67
  68 #define aux_free_irq(dev_id) free_irq(AUX_IRQ, dev_id)