projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| c04cb856 MS |
1 | /* |
| 2 | * Atari mouse driver for Linux/m68k | |
| 3 | * | |
| 4 | * Copyright (c) 2005 Michael Schmitz | |
| 5 | * | |
| 6 | * Based on: | |
| 7 | * Amiga mouse driver for Linux/m68k | |
| 8 | * | |
| 9 | * Copyright (c) 2000-2002 Vojtech Pavlik | |
| 10 | * | |
| 11 | */ | |
| 12 | /* | |
| 13 | * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c | |
| 14 | * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard | |
| 15 | * interrupt is shared with the MIDI ACIA so MIDI data also get handled there). | |
| 16 | * This driver only deals with handing key events off to the input layer. | |
| 17 | * | |
| 18 | * Largely based on the old: | |
| 19 | * | |
| 20 | * Atari Mouse Driver for Linux | |
| 21 | * by Robert de Vries (robert@and.nl) 19Jul93 | |
| 22 | * | |
| 23 | * 16 Nov 1994 Andreas Schwab | |
| 24 | * Compatibility with busmouse | |
| 25 | * Support for three button mouse (shamelessly stolen from MiNT) | |
| 26 | * third button wired to one of the joystick directions on joystick 1 | |
| 27 | * | |
| 28 | * 1996/02/11 Andreas Schwab | |
| 29 | * Module support | |
| 30 | * Allow multiple open's | |
| 31 | * | |
| 32 | * Converted to use new generic busmouse code. 5 Apr 1998 | |
| 33 | * Russell King <rmk@arm.uk.linux.org> | |
| 34 | */ | |
| 35 | ||
| 36 | ||
| 37 | /* | |
| 38 | * This program is free software; you can redistribute it and/or modify it | |
| 39 | * under the terms of the GNU General Public License version 2 as published by | |
| 40 | * the Free Software Foundation | |
| 41 | */ | |
| 42 | ||
| 43 | #include <linux/module.h> | |
| 44 | #include <linux/init.h> | |
| 45 | #include <linux/input.h> | |
| 46 | #include <linux/interrupt.h> | |
| 47 | ||
| 48 | #include <asm/irq.h> | |
| 49 | #include <asm/setup.h> | |
| 50 | #include <asm/system.h> | |
| 51 | #include <asm/uaccess.h> | |
| 52 | #include <asm/atarihw.h> | |
| 53 | #include <asm/atarikb.h> | |
| 54 | #include <asm/atariints.h> | |
| 55 | ||
| 56 | MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>"); | |
| 57 | MODULE_DESCRIPTION("Atari mouse driver"); | |
| 58 | MODULE_LICENSE("GPL"); | |
| 59 | ||
| 60 | static int mouse_threshold[2] = {2,2}; | |
| 61 | ||
| 62 | #ifdef __MODULE__ | |
| 63 | MODULE_PARM(mouse_threshold, "2i"); | |
| 64 | #endif | |
| 65 | #ifdef FIXED_ATARI_JOYSTICK | |
| 66 | extern int atari_mouse_buttons; | |
| 67 | #endif | |
| 68 | static int atamouse_used = 0; | |
| 69 | ||
| 70 | static struct input_dev *atamouse_dev; | |
| 71 | ||
| 72 | static void atamouse_interrupt(char *buf) | |
| 73 | { | |
| 74 | int buttons, dx, dy; | |
| 75 | ||
| c04cb856 MS |
76 | buttons = (buf[0] & 1) | ((buf[0] & 2) << 1); |
| 77 | #ifdef FIXED_ATARI_JOYSTICK | |
| 78 | buttons |= atari_mouse_buttons & 2; | |
| 79 | atari_mouse_buttons = buttons; | |
| 80 | #endif | |
| c04cb856 MS |
81 | |
| 82 | /* only relative events get here */ | |
| 83 | dx = buf[1]; | |
| 84 | dy = -buf[2]; | |
| 85 | ||
| 86 | input_report_rel(atamouse_dev, REL_X, dx); | |
| 87 | input_report_rel(atamouse_dev, REL_Y, dy); | |
| 88 | ||
| 89 | input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x1); | |
| 90 | input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2); | |
| 91 | input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x4); | |
| 92 | ||
| 93 | input_sync(atamouse_dev); | |
| 94 | ||
| 95 | return; | |
| 96 | } | |
| 97 | ||
| 98 | static int atamouse_open(struct input_dev *dev) | |
| 99 | { | |
| 100 | if (atamouse_used++) | |
| 101 | return 0; | |
| 102 | ||
| 103 | #ifdef FIXED_ATARI_JOYSTICK | |
| 104 | atari_mouse_buttons = 0; | |
| 105 | #endif | |
| 106 | ikbd_mouse_y0_top(); | |
| 107 | ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]); | |
| 108 | ikbd_mouse_rel_pos(); | |
| 109 | atari_input_mouse_interrupt_hook = atamouse_interrupt; | |
| 110 | return 0; | |
| 111 | } | |
| 112 | ||
| 113 | static void atamouse_close(struct input_dev *dev) | |
| 114 | { | |
| 115 | if (!--atamouse_used) { | |
| 116 | ikbd_mouse_disable(); | |
| 117 | atari_mouse_interrupt_hook = NULL; | |
| 118 | } | |
| 119 | } | |
| 120 | ||
| 121 | static int __init atamouse_init(void) | |
| 122 | { | |
| 123 | if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP)) | |
| 124 | return -ENODEV; | |
| 125 | ||
| c04cb856 MS |
126 | if (!(atari_keyb_init())) |
| 127 | return -ENODEV; | |
| 128 | ||
| 6615c5b2 GU |
129 | atamouse_dev = input_allocate_device(); |
| 130 | if (!atamouse_dev) | |
| 131 | return -ENOMEM; | |
| 132 | ||
| c04cb856 MS |
133 | atamouse_dev->name = "Atari mouse"; |
| 134 | atamouse_dev->phys = "atamouse/input0"; | |
| 6615c5b2 | 135 | atamouse_dev->id.bustype = BUS_HOST; |
| c04cb856 MS |
136 | atamouse_dev->id.vendor = 0x0001; |
| 137 | atamouse_dev->id.product = 0x0002; | |
| 138 | atamouse_dev->id.version = 0x0100; | |
| 139 | ||
| 7b19ada2 JS |
140 | atamouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
| 141 | atamouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); | |
| 142 | atamouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) | | |
| 143 | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); | |
| c04cb856 MS |
144 | atamouse_dev->open = atamouse_open; |
| 145 | atamouse_dev->close = atamouse_close; | |
| 146 | ||
| 6615c5b2 GU |
147 | if (input_register_device(atamouse_dev)) { |
| 148 | input_free_device(atamouse_dev); | |
| 149 | return -ENOMEM; | |
| 150 | } | |
| c04cb856 | 151 | |
| c04cb856 MS |
152 | return 0; |
| 153 | } | |
| 154 | ||
| 155 | static void __exit atamouse_exit(void) | |
| 156 | { | |
| 157 | input_unregister_device(atamouse_dev); | |
| 158 | } | |
| 159 | ||
| 160 | module_init(atamouse_init); | |
| 161 | module_exit(atamouse_exit); |