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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 | // SPDX-License-Identifier: GPL-2.0-only /* * 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> */ #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 <linux/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); |