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
kbd_init_hw(void)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
69