/* * Atari mouse driver for Linux/m68k * * Copyright (c) 2005 Michael Schmitz * * Based on: * Amiga mouse driver for Linux/m68k * * Copyright (c) 2000-2002 Vojtech Pavlik * */ /* * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard * interrupt is shared with the MIDI ACIA so MIDI data also get handled there). * This driver only deals with handing key events off to the input layer. * * Largely based on the old: * * Atari Mouse Driver for Linux * by Robert de Vries (robert@and.nl) 19Jul93 * * 16 Nov 1994 Andreas Schwab * Compatibility with busmouse * Support for three button mouse (shamelessly stolen from MiNT) * third button wired to one of the joystick directions on joystick 1 * * 1996/02/11 Andreas Schwab * Module support * Allow multiple open's * * Converted to use new generic busmouse code. 5 Apr 1998 * Russell King <rmk@arm.uk.linux.org> */ /* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation */ #include <linux/module.h> #include <linux/init.h> #include <linux/input.h> #include <linux/interrupt.h> #include <asm/irq.h> #include <asm/setup.h> #include <asm/system.h> #include <asm/uaccess.h> #include <asm/atarihw.h> #include <asm/atarikb.h> #include <asm/atariints.h> MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>"); MODULE_DESCRIPTION("Atari mouse driver"); MODULE_LICENSE("GPL"); static int mouse_threshold[2] = {2, 2}; module_param_array(mouse_threshold, int, NULL, 0); #ifdef FIXED_ATARI_JOYSTICK extern int atari_mouse_buttons; #endif static struct input_dev *atamouse_dev; static void atamouse_interrupt(char *buf) { int buttons, dx, dy; buttons = (buf[0] & 1) | ((buf[0] & 2) << 1); #ifdef FIXED_ATARI_JOYSTICK buttons |= atari_mouse_buttons & 2; atari_mouse_buttons = buttons; #endif /* only relative events get here */ dx = buf[1]; dy = buf[2]; input_report_rel(atamouse_dev, REL_X, dx); input_report_rel(atamouse_dev, REL_Y, dy); input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x4); input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2); input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x1); input_sync(atamouse_dev); return; } static int atamouse_open(struct input_dev *dev) { #ifdef FIXED_ATARI_JOYSTICK atari_mouse_buttons = 0; #endif ikbd_mouse_y0_top(); ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]); ikbd_mouse_rel_pos(); atari_input_mouse_interrupt_hook = atamouse_interrupt; return 0; } static void atamouse_close(struct input_dev *dev) { ikbd_mouse_disable(); atari_input_mouse_interrupt_hook = NULL; } static int __init atamouse_init(void) { int error; if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP)) return -ENODEV; error = atari_keyb_init(); if (error) return error; atamouse_dev = input_allocate_device(); if (!atamouse_dev) return -ENOMEM; atamouse_dev->name = "Atari mouse"; atamouse_dev->phys = "atamouse/input0"; atamouse_dev->id.bustype = BUS_HOST; atamouse_dev->id.vendor = 0x0001; atamouse_dev->id.product = 0x0002; atamouse_dev->id.version = 0x0100; atamouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); atamouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); atamouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); atamouse_dev->open = atamouse_open; atamouse_dev->close = atamouse_close; error = input_register_device(atamouse_dev); if (error) { input_free_device(atamouse_dev); return error; } return 0; } static void __exit atamouse_exit(void) { input_unregister_device(atamouse_dev); } module_init(atamouse_init); module_exit(atamouse_exit);