1c04cb856SMichael Schmitz /* 2c04cb856SMichael Schmitz * Atari mouse driver for Linux/m68k 3c04cb856SMichael Schmitz * 4c04cb856SMichael Schmitz * Copyright (c) 2005 Michael Schmitz 5c04cb856SMichael Schmitz * 6c04cb856SMichael Schmitz * Based on: 7c04cb856SMichael Schmitz * Amiga mouse driver for Linux/m68k 8c04cb856SMichael Schmitz * 9c04cb856SMichael Schmitz * Copyright (c) 2000-2002 Vojtech Pavlik 10c04cb856SMichael Schmitz * 11c04cb856SMichael Schmitz */ 12c04cb856SMichael Schmitz /* 13c04cb856SMichael Schmitz * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c 14c04cb856SMichael Schmitz * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard 15c04cb856SMichael Schmitz * interrupt is shared with the MIDI ACIA so MIDI data also get handled there). 16c04cb856SMichael Schmitz * This driver only deals with handing key events off to the input layer. 17c04cb856SMichael Schmitz * 18c04cb856SMichael Schmitz * Largely based on the old: 19c04cb856SMichael Schmitz * 20c04cb856SMichael Schmitz * Atari Mouse Driver for Linux 21c04cb856SMichael Schmitz * by Robert de Vries (robert@and.nl) 19Jul93 22c04cb856SMichael Schmitz * 23c04cb856SMichael Schmitz * 16 Nov 1994 Andreas Schwab 24c04cb856SMichael Schmitz * Compatibility with busmouse 25c04cb856SMichael Schmitz * Support for three button mouse (shamelessly stolen from MiNT) 26c04cb856SMichael Schmitz * third button wired to one of the joystick directions on joystick 1 27c04cb856SMichael Schmitz * 28c04cb856SMichael Schmitz * 1996/02/11 Andreas Schwab 29c04cb856SMichael Schmitz * Module support 30c04cb856SMichael Schmitz * Allow multiple open's 31c04cb856SMichael Schmitz * 32c04cb856SMichael Schmitz * Converted to use new generic busmouse code. 5 Apr 1998 33c04cb856SMichael Schmitz * Russell King <rmk@arm.uk.linux.org> 34c04cb856SMichael Schmitz */ 35c04cb856SMichael Schmitz 36c04cb856SMichael Schmitz 37c04cb856SMichael Schmitz /* 38c04cb856SMichael Schmitz * This program is free software; you can redistribute it and/or modify it 39c04cb856SMichael Schmitz * under the terms of the GNU General Public License version 2 as published by 40c04cb856SMichael Schmitz * the Free Software Foundation 41c04cb856SMichael Schmitz */ 42c04cb856SMichael Schmitz 43c04cb856SMichael Schmitz #include <linux/module.h> 44c04cb856SMichael Schmitz #include <linux/init.h> 45c04cb856SMichael Schmitz #include <linux/input.h> 46c04cb856SMichael Schmitz #include <linux/interrupt.h> 47c04cb856SMichael Schmitz 48c04cb856SMichael Schmitz #include <asm/irq.h> 49c04cb856SMichael Schmitz #include <asm/setup.h> 50c04cb856SMichael Schmitz #include <asm/system.h> 51c04cb856SMichael Schmitz #include <asm/uaccess.h> 52c04cb856SMichael Schmitz #include <asm/atarihw.h> 53c04cb856SMichael Schmitz #include <asm/atarikb.h> 54c04cb856SMichael Schmitz #include <asm/atariints.h> 55c04cb856SMichael Schmitz 56c04cb856SMichael Schmitz MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>"); 57c04cb856SMichael Schmitz MODULE_DESCRIPTION("Atari mouse driver"); 58c04cb856SMichael Schmitz MODULE_LICENSE("GPL"); 59c04cb856SMichael Schmitz 60c04cb856SMichael Schmitz static int mouse_threshold[2] = {2, 2}; 6182547e90SDmitry Torokhov module_param_array(mouse_threshold, int, NULL, 0); 62c04cb856SMichael Schmitz 63c04cb856SMichael Schmitz #ifdef FIXED_ATARI_JOYSTICK 64c04cb856SMichael Schmitz extern int atari_mouse_buttons; 65c04cb856SMichael Schmitz #endif 66c04cb856SMichael Schmitz 67c04cb856SMichael Schmitz static struct input_dev *atamouse_dev; 68c04cb856SMichael Schmitz 69c04cb856SMichael Schmitz static void atamouse_interrupt(char *buf) 70c04cb856SMichael Schmitz { 71c04cb856SMichael Schmitz int buttons, dx, dy; 72c04cb856SMichael Schmitz 73c04cb856SMichael Schmitz buttons = (buf[0] & 1) | ((buf[0] & 2) << 1); 74c04cb856SMichael Schmitz #ifdef FIXED_ATARI_JOYSTICK 75c04cb856SMichael Schmitz buttons |= atari_mouse_buttons & 2; 76c04cb856SMichael Schmitz atari_mouse_buttons = buttons; 77c04cb856SMichael Schmitz #endif 78c04cb856SMichael Schmitz 79c04cb856SMichael Schmitz /* only relative events get here */ 80c04cb856SMichael Schmitz dx = buf[1]; 81c04cb856SMichael Schmitz dy = -buf[2]; 82c04cb856SMichael Schmitz 83c04cb856SMichael Schmitz input_report_rel(atamouse_dev, REL_X, dx); 84c04cb856SMichael Schmitz input_report_rel(atamouse_dev, REL_Y, dy); 85c04cb856SMichael Schmitz 86c04cb856SMichael Schmitz input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x1); 87c04cb856SMichael Schmitz input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2); 88c04cb856SMichael Schmitz input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x4); 89c04cb856SMichael Schmitz 90c04cb856SMichael Schmitz input_sync(atamouse_dev); 91c04cb856SMichael Schmitz 92c04cb856SMichael Schmitz return; 93c04cb856SMichael Schmitz } 94c04cb856SMichael Schmitz 95c04cb856SMichael Schmitz static int atamouse_open(struct input_dev *dev) 96c04cb856SMichael Schmitz { 97c04cb856SMichael Schmitz #ifdef FIXED_ATARI_JOYSTICK 98c04cb856SMichael Schmitz atari_mouse_buttons = 0; 99c04cb856SMichael Schmitz #endif 100c04cb856SMichael Schmitz ikbd_mouse_y0_top(); 101c04cb856SMichael Schmitz ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]); 102c04cb856SMichael Schmitz ikbd_mouse_rel_pos(); 103c04cb856SMichael Schmitz atari_input_mouse_interrupt_hook = atamouse_interrupt; 10482547e90SDmitry Torokhov 105c04cb856SMichael Schmitz return 0; 106c04cb856SMichael Schmitz } 107c04cb856SMichael Schmitz 108c04cb856SMichael Schmitz static void atamouse_close(struct input_dev *dev) 109c04cb856SMichael Schmitz { 110c04cb856SMichael Schmitz ikbd_mouse_disable(); 111c04cb856SMichael Schmitz atari_mouse_interrupt_hook = NULL; 112c04cb856SMichael Schmitz } 113c04cb856SMichael Schmitz 114c04cb856SMichael Schmitz static int __init atamouse_init(void) 115c04cb856SMichael Schmitz { 11682547e90SDmitry Torokhov int error; 11782547e90SDmitry Torokhov 118c04cb856SMichael Schmitz if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP)) 119c04cb856SMichael Schmitz return -ENODEV; 120c04cb856SMichael Schmitz 12182547e90SDmitry Torokhov if (!atari_keyb_init()) 122c04cb856SMichael Schmitz return -ENODEV; 123c04cb856SMichael Schmitz 1246615c5b2SGeert Uytterhoeven atamouse_dev = input_allocate_device(); 1256615c5b2SGeert Uytterhoeven if (!atamouse_dev) 1266615c5b2SGeert Uytterhoeven return -ENOMEM; 1276615c5b2SGeert Uytterhoeven 128c04cb856SMichael Schmitz atamouse_dev->name = "Atari mouse"; 129c04cb856SMichael Schmitz atamouse_dev->phys = "atamouse/input0"; 1306615c5b2SGeert Uytterhoeven atamouse_dev->id.bustype = BUS_HOST; 131c04cb856SMichael Schmitz atamouse_dev->id.vendor = 0x0001; 132c04cb856SMichael Schmitz atamouse_dev->id.product = 0x0002; 133c04cb856SMichael Schmitz atamouse_dev->id.version = 0x0100; 134c04cb856SMichael Schmitz 1357b19ada2SJiri Slaby atamouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 1367b19ada2SJiri Slaby atamouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 1377b19ada2SJiri Slaby atamouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) | 1387b19ada2SJiri Slaby BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); 13982547e90SDmitry Torokhov 140c04cb856SMichael Schmitz atamouse_dev->open = atamouse_open; 141c04cb856SMichael Schmitz atamouse_dev->close = atamouse_close; 142c04cb856SMichael Schmitz 14382547e90SDmitry Torokhov error = input_register_device(atamouse_dev); 14482547e90SDmitry Torokhov if (error) { 1456615c5b2SGeert Uytterhoeven input_free_device(atamouse_dev); 14682547e90SDmitry Torokhov return error; 1476615c5b2SGeert Uytterhoeven } 148c04cb856SMichael Schmitz 149c04cb856SMichael Schmitz return 0; 150c04cb856SMichael Schmitz } 151c04cb856SMichael Schmitz 152c04cb856SMichael Schmitz static void __exit atamouse_exit(void) 153c04cb856SMichael Schmitz { 154c04cb856SMichael Schmitz input_unregister_device(atamouse_dev); 155c04cb856SMichael Schmitz } 156c04cb856SMichael Schmitz 157c04cb856SMichael Schmitz module_init(atamouse_init); 158c04cb856SMichael Schmitz module_exit(atamouse_exit); 159