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}; 61c04cb856SMichael Schmitz 62c04cb856SMichael Schmitz #ifdef __MODULE__ 63c04cb856SMichael Schmitz MODULE_PARM(mouse_threshold, "2i"); 64c04cb856SMichael Schmitz #endif 65c04cb856SMichael Schmitz #ifdef FIXED_ATARI_JOYSTICK 66c04cb856SMichael Schmitz extern int atari_mouse_buttons; 67c04cb856SMichael Schmitz #endif 68c04cb856SMichael Schmitz static int atamouse_used = 0; 69c04cb856SMichael Schmitz 70c04cb856SMichael Schmitz static struct input_dev *atamouse_dev; 71c04cb856SMichael Schmitz 72c04cb856SMichael Schmitz static void atamouse_interrupt(char *buf) 73c04cb856SMichael Schmitz { 74c04cb856SMichael Schmitz int buttons, dx, dy; 75c04cb856SMichael Schmitz 76c04cb856SMichael Schmitz buttons = (buf[0] & 1) | ((buf[0] & 2) << 1); 77c04cb856SMichael Schmitz #ifdef FIXED_ATARI_JOYSTICK 78c04cb856SMichael Schmitz buttons |= atari_mouse_buttons & 2; 79c04cb856SMichael Schmitz atari_mouse_buttons = buttons; 80c04cb856SMichael Schmitz #endif 81c04cb856SMichael Schmitz 82c04cb856SMichael Schmitz /* only relative events get here */ 83c04cb856SMichael Schmitz dx = buf[1]; 84c04cb856SMichael Schmitz dy = -buf[2]; 85c04cb856SMichael Schmitz 86c04cb856SMichael Schmitz input_report_rel(atamouse_dev, REL_X, dx); 87c04cb856SMichael Schmitz input_report_rel(atamouse_dev, REL_Y, dy); 88c04cb856SMichael Schmitz 89c04cb856SMichael Schmitz input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x1); 90c04cb856SMichael Schmitz input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2); 91c04cb856SMichael Schmitz input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x4); 92c04cb856SMichael Schmitz 93c04cb856SMichael Schmitz input_sync(atamouse_dev); 94c04cb856SMichael Schmitz 95c04cb856SMichael Schmitz return; 96c04cb856SMichael Schmitz } 97c04cb856SMichael Schmitz 98c04cb856SMichael Schmitz static int atamouse_open(struct input_dev *dev) 99c04cb856SMichael Schmitz { 100c04cb856SMichael Schmitz if (atamouse_used++) 101c04cb856SMichael Schmitz return 0; 102c04cb856SMichael Schmitz 103c04cb856SMichael Schmitz #ifdef FIXED_ATARI_JOYSTICK 104c04cb856SMichael Schmitz atari_mouse_buttons = 0; 105c04cb856SMichael Schmitz #endif 106c04cb856SMichael Schmitz ikbd_mouse_y0_top(); 107c04cb856SMichael Schmitz ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]); 108c04cb856SMichael Schmitz ikbd_mouse_rel_pos(); 109c04cb856SMichael Schmitz atari_input_mouse_interrupt_hook = atamouse_interrupt; 110c04cb856SMichael Schmitz return 0; 111c04cb856SMichael Schmitz } 112c04cb856SMichael Schmitz 113c04cb856SMichael Schmitz static void atamouse_close(struct input_dev *dev) 114c04cb856SMichael Schmitz { 115c04cb856SMichael Schmitz if (!--atamouse_used) { 116c04cb856SMichael Schmitz ikbd_mouse_disable(); 117c04cb856SMichael Schmitz atari_mouse_interrupt_hook = NULL; 118c04cb856SMichael Schmitz } 119c04cb856SMichael Schmitz } 120c04cb856SMichael Schmitz 121c04cb856SMichael Schmitz static int __init atamouse_init(void) 122c04cb856SMichael Schmitz { 123c04cb856SMichael Schmitz if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP)) 124c04cb856SMichael Schmitz return -ENODEV; 125c04cb856SMichael Schmitz 126c04cb856SMichael Schmitz if (!(atari_keyb_init())) 127c04cb856SMichael Schmitz return -ENODEV; 128c04cb856SMichael Schmitz 1296615c5b2SGeert Uytterhoeven atamouse_dev = input_allocate_device(); 1306615c5b2SGeert Uytterhoeven if (!atamouse_dev) 1316615c5b2SGeert Uytterhoeven return -ENOMEM; 1326615c5b2SGeert Uytterhoeven 133c04cb856SMichael Schmitz atamouse_dev->name = "Atari mouse"; 134c04cb856SMichael Schmitz atamouse_dev->phys = "atamouse/input0"; 1356615c5b2SGeert Uytterhoeven atamouse_dev->id.bustype = BUS_HOST; 136c04cb856SMichael Schmitz atamouse_dev->id.vendor = 0x0001; 137c04cb856SMichael Schmitz atamouse_dev->id.product = 0x0002; 138c04cb856SMichael Schmitz atamouse_dev->id.version = 0x0100; 139c04cb856SMichael Schmitz 1407b19ada2SJiri Slaby atamouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 1417b19ada2SJiri Slaby atamouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 1427b19ada2SJiri Slaby atamouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) | 1437b19ada2SJiri Slaby BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); 144c04cb856SMichael Schmitz atamouse_dev->open = atamouse_open; 145c04cb856SMichael Schmitz atamouse_dev->close = atamouse_close; 146c04cb856SMichael Schmitz 1476615c5b2SGeert Uytterhoeven if (input_register_device(atamouse_dev)) { 1486615c5b2SGeert Uytterhoeven input_free_device(atamouse_dev); 1496615c5b2SGeert Uytterhoeven return -ENOMEM; 1506615c5b2SGeert Uytterhoeven } 151c04cb856SMichael Schmitz 152c04cb856SMichael Schmitz return 0; 153c04cb856SMichael Schmitz } 154c04cb856SMichael Schmitz 155c04cb856SMichael Schmitz static void __exit atamouse_exit(void) 156c04cb856SMichael Schmitz { 157c04cb856SMichael Schmitz input_unregister_device(atamouse_dev); 158c04cb856SMichael Schmitz } 159c04cb856SMichael Schmitz 160c04cb856SMichael Schmitz module_init(atamouse_init); 161c04cb856SMichael Schmitz module_exit(atamouse_exit); 162