path: root/drivers/macintosh/adbhid.c

/*
 * drivers/macintosh/adbhid.c
 *
 * ADB HID driver for Power Macintosh computers.
 *
 * Adapted from drivers/macintosh/mac_keyb.c by Franz Sirl.
 * drivers/macintosh/mac_keyb.c was Copyright (C) 1996 Paul Mackerras
 * with considerable contributions from Ben Herrenschmidt and others.
 *
 * Copyright (C) 2000 Franz Sirl.
 *
 * Adapted to ADB changes and support for more devices by
 * Benjamin Herrenschmidt. Adapted from code in MkLinux
 * and reworked.
 * 
 * Supported devices:
 *
 * - Standard 1 button mouse
 * - All standard Apple Extended protocol (handler ID 4)
 * - mouseman and trackman mice & trackballs 
 * - PowerBook Trackpad (default setup: enable tapping)
 * - MicroSpeed mouse & trackball (needs testing)
 * - CH Products Trackball Pro (needs testing)
 * - Contour Design (Contour Mouse)
 * - Hunter digital (NoHandsMouse)
 * - Kensignton TurboMouse 5 (needs testing)
 * - Mouse Systems A3 mice and trackballs <aidan@kublai.com>
 * - MacAlly 2-buttons mouse (needs testing) <pochini@denise.shiny.it>
 *
 * To do:
 *
 * Improve Kensington support.
 * Split mouse/kbd
 * Move to syfs
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/notifier.h>
#include <linux/input.h>

#include <linux/adb.h>
#include <linux/cuda.h>
#include <linux/pmu.h>

#include <asm/machdep.h>
#ifdef CONFIG_PPC_PMAC
#include <asm/backlight.h>
#include <asm/pmac_feature.h>
#endif

MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");

#define KEYB_KEYREG	0	/* register # for key up/down data */
#define KEYB_LEDREG	2	/* register # for leds on ADB keyboard */
#define MOUSE_DATAREG	0	/* reg# for movement/button codes from mouse */

static int adb_message_handler(struct notifier_block *, unsigned long, void *);
static struct notifier_block adbhid_adb_notifier = {
	.notifier_call	= adb_message_handler,
};

/* Some special keys */
#define ADB_KEY_DEL		0x33
#define ADB_KEY_CMD		0x37
#define ADB_KEY_CAPSLOCK	0x39
#define ADB_KEY_FN		0x3f
#define ADB_KEY_FWDEL		0x75
#define ADB_KEY_POWER_OLD	0x7e
#define ADB_KEY_POWER		0x7f

u8 adb_to_linux_keycodes[128] = {
	/* 0x00 */ KEY_A, 		/*  30 */
	/* 0x01 */ KEY_S, 		/*  31 */
	/* 0x02 */ KEY_D,		/*  32 */
	/* 0x03 */ KEY_F,		/*  33 */
	/* 0x04 */ KEY_H,		/*  35 */
	/* 0x05 */ KEY_G,		/*  34 */
	/* 0x06 */ KEY_Z,		/*  44 */
	/* 0x07 */ KEY_X,		/*  45 */
	/* 0x08 */ KEY_C,		/*  46 */
	/* 0x09 */ KEY_V,		/*  47 */
	/* 0x0a */ KEY_102ND,		/*  86 */
	/* 0x0b */ KEY_B,		/*  48 */
	/* 0x0c */ KEY_Q,		/*  16 */
	/* 0x0d */ KEY_W,		/*  17 */
	/* 0x0e */ KEY_E,		/*  18 */
	/* 0x0f */ KEY_R,		/*  19 */
	/* 0x10 */ KEY_Y,		/*  21 */
	/* 0x11 */ KEY_T,		/*  20 */
	/* 0x12 */ KEY_1,		/*   2 */
	/* 0x13 */ KEY_2,		/*   3 */
	/* 0x14 */ KEY_3,		/*   4 */
	/* 0x15 */ KEY_4,		/*   5 */
	/* 0x16 */ KEY_6,		/*   7 */
	/* 0x17 */ KEY_5,		/*   6 */
	/* 0x18 */ KEY_EQUAL,		/*  13 */
	/* 0x19 */ KEY_9,		/*  10 */
	/* 0x1a */ KEY_7,		/*   8 */
	/* 0x1b */ KEY_MINUS,		/*  12 */
	/* 0x1c */ KEY_8,		/*   9 */
	/* 0x1d */ KEY_0,		/*  11 */
	/* 0x1e */ KEY_RIGHTBRACE,	/*  27 */
	/* 0x1f */ KEY_O,		/*  24 */
	/* 0x20 */ KEY_U,		/*  22 */
	/* 0x21 */ KEY_LEFTBRACE,	/*  26 */
	/* 0x22 */ KEY_I,		/*  23 */
	/* 0x23 */ KEY_P,		/*  25 */
	/* 0x24 */ KEY_ENTER,		/*  28 */
	/* 0x25 */ KEY_L,		/*  38 */
	/* 0x26 */ KEY_J,		/*  36 */
	/* 0x27 */ KEY_APOSTROPHE,	/*  40 */
	/* 0x28 */ KEY_K,		/*  37 */
	/* 0x29 */ KEY_SEMICOLON,	/*  39 */
	/* 0x2a */ KEY_BACKSLASH,	/*  43 */
	/* 0x2b */ KEY_COMMA,		/*  51 */
	/* 0x2c */ KEY_SLASH,		/*  53 */
	/* 0x2d */ KEY_N,		/*  49 */
	/* 0x2e */ KEY_M,		/*  50 */
	/* 0x2f */ KEY_DOT,		/*  52 */
	/* 0x30 */ KEY_TAB,		/*  15 */
	/* 0x31 */ KEY_SPACE,		/*  57 */
	/* 0x32 */ KEY_GRAVE,		/*  41 */
	/* 0x33 */ KEY_BACKSPACE,	/*  14 */