1/*
  2 *  Amiga mouse driver for Linux/m68k
  3 *
  4 *  Copyright (c) 2000-2002 Vojtech Pavlik
  5 *
  6 *  Based on the work of:
  7 *	Michael Rausch		James Banks
  8 *	Matther Dillon		David Giller
  9 *	Nathan Laredo		Linus Torvalds
 10 *	Johan Myreen		Jes Sorensen
 11 *	Russell King
 12 */
 13
 14/*
 15 * This program is free software; you can redistribute it and/or modify it
 16 * under the terms of the GNU General Public License version 2 as published by
 17 * the Free Software Foundation
 18 */
 19
 20#include <linux/module.h>
 21#include <linux/init.h>
 22#include <linux/input.h>
 23#include <linux/interrupt.h>
 24#include <linux/platform_device.h>
 25
 26#include <asm/irq.h>
 27#include <asm/setup.h>
 28#include <asm/system.h>
 29#include <asm/uaccess.h>
 30#include <asm/amigahw.h>
 31#include <asm/amigaints.h>
 32
 33MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 34MODULE_DESCRIPTION("Amiga mouse driver");
 35MODULE_LICENSE("GPL");
 36
 37static int amimouse_lastx, amimouse_lasty;
 38
 39static irqreturn_t amimouse_interrupt(int irq, void *data)
 40{
 41	struct input_dev *dev = data;
 42	unsigned short joy0dat, potgor;
 43	int nx, ny, dx, dy;
 44
 45	joy0dat = amiga_custom.joy0dat;
 46
 47	nx = joy0dat & 0xff;
 48	ny = joy0dat >> 8;
 49
 50	dx = nx - amimouse_lastx;
 51	dy = ny - amimouse_lasty;
 52
 53	if (dx < -127) dx = (256 + nx) - amimouse_lastx;
 54	if (dx >  127) dx = (nx - 256) - amimouse_lastx;
 55	if (dy < -127) dy = (256 + ny) - amimouse_lasty;
 56	if (dy >  127) dy = (ny - 256) - amimouse_lasty;
 57
 58	amimouse_lastx = nx;
 59	amimouse_lasty = ny;
 60
 61	potgor = amiga_custom.potgor;
 62
 63	input_report_rel(dev, REL_X, dx);
 64	input_report_rel(dev, REL_Y, dy);
 65
 66	input_report_key(dev, BTN_LEFT,   ciaa.pra & 0x40);
 67	input_report_key(dev, BTN_MIDDLE, potgor & 0x0100);
 68	input_report_key(dev, BTN_RIGHT,  potgor & 0x0400);
 69
 70	input_sync(dev);
 71
 72	return IRQ_HANDLED;
 73}
 74
 75static int amimouse_open(struct input_dev *dev)
 76{
 77	unsigned short joy0dat;
 78	int error;
 79
 80	joy0dat = amiga_custom.joy0dat;
 81
 82	amimouse_lastx = joy0dat & 0xff;
 83	amimouse_lasty = joy0dat >> 8;
 84
 85	error = request_irq(IRQ_AMIGA_VERTB, amimouse_interrupt, 0, "amimouse",
 86			    dev);
 87	if (error)
 88		dev_err(&dev->dev, "Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
 89
 90	return error;
 91}
 92
 93static void amimouse_close(struct input_dev *dev)
 94{
 95	free_irq(IRQ_AMIGA_VERTB, dev);
 96}
 97
 98static int __init amimouse_probe(struct platform_device *pdev)
 99{
100	int err;
101	struct input_dev *dev;
102
103	dev = input_allocate_device();
104	if (!dev)
105		return -ENOMEM;
106
107	dev->name = pdev->name;
108	dev->phys = "amimouse/input0";
109	dev->id.bustype = BUS_AMIGA;
110	dev->id.vendor = 0x0001;
111	dev->id.product = 0x0002;
112	dev->id.version = 0x0100;
113
114	dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
115	dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
116	dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
117		BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
118	dev->open = amimouse_open;
119	dev->close = amimouse_close;
120	dev->dev.parent = &pdev->dev;
121
122	err = input_register_device(dev);
123	if (err) {
124		input_free_device(dev);
125		return err;
126	}
127
128	platform_set_drvdata(pdev, dev);
129
130	return 0;
131}
132
133static int __exit amimouse_remove(struct platform_device *pdev)
134{
135	struct input_dev *dev = platform_get_drvdata(pdev);
136
137	platform_set_drvdata(pdev, NULL);
138	input_unregister_device(dev);
139	return 0;
140}
141
142static struct platform_driver amimouse_driver = {
143	.remove = __exit_p(amimouse_remove),
144	.driver   = {
145		.name	= "amiga-mouse",
146		.owner	= THIS_MODULE,
147	},
148};
149
150static int __init amimouse_init(void)
151{
152	return platform_driver_probe(&amimouse_driver, amimouse_probe);
153}
154
155module_init(amimouse_init);
156
157static void __exit amimouse_exit(void)
158{
159	platform_driver_unregister(&amimouse_driver);
160}
161
162module_exit(amimouse_exit);
163
164MODULE_ALIAS("platform:amiga-mouse");

  1/*
  2 *  Amiga mouse driver for Linux/m68k
  3 *
  4 *  Copyright (c) 2000-2002 Vojtech Pavlik
  5 *
  6 *  Based on the work of:
  7 *	Michael Rausch		James Banks
  8 *	Matther Dillon		David Giller
  9 *	Nathan Laredo		Linus Torvalds
 10 *	Johan Myreen		Jes Sorensen
 11 *	Russell King
 12 */
 13
 14/*
 15 * This program is free software; you can redistribute it and/or modify it
 16 * under the terms of the GNU General Public License version 2 as published by
 17 * the Free Software Foundation
 18 */
 19
 20#include <linux/module.h>
 21#include <linux/init.h>
 22#include <linux/input.h>
 23#include <linux/interrupt.h>
 24#include <linux/platform_device.h>
 25
 26#include <asm/irq.h>
 27#include <asm/setup.h>
 
 28#include <asm/uaccess.h>
 29#include <asm/amigahw.h>
 30#include <asm/amigaints.h>
 31
 32MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 33MODULE_DESCRIPTION("Amiga mouse driver");
 34MODULE_LICENSE("GPL");
 35
 36static int amimouse_lastx, amimouse_lasty;
 37
 38static irqreturn_t amimouse_interrupt(int irq, void *data)
 39{
 40	struct input_dev *dev = data;
 41	unsigned short joy0dat, potgor;
 42	int nx, ny, dx, dy;
 43
 44	joy0dat = amiga_custom.joy0dat;
 45
 46	nx = joy0dat & 0xff;
 47	ny = joy0dat >> 8;
 48
 49	dx = nx - amimouse_lastx;
 50	dy = ny - amimouse_lasty;
 51
 52	if (dx < -127) dx = (256 + nx) - amimouse_lastx;
 53	if (dx >  127) dx = (nx - 256) - amimouse_lastx;
 54	if (dy < -127) dy = (256 + ny) - amimouse_lasty;
 55	if (dy >  127) dy = (ny - 256) - amimouse_lasty;
 56
 57	amimouse_lastx = nx;
 58	amimouse_lasty = ny;
 59
 60	potgor = amiga_custom.potgor;
 61
 62	input_report_rel(dev, REL_X, dx);
 63	input_report_rel(dev, REL_Y, dy);
 64
 65	input_report_key(dev, BTN_LEFT,   ciaa.pra & 0x40);
 66	input_report_key(dev, BTN_MIDDLE, potgor & 0x0100);
 67	input_report_key(dev, BTN_RIGHT,  potgor & 0x0400);
 68
 69	input_sync(dev);
 70
 71	return IRQ_HANDLED;
 72}
 73
 74static int amimouse_open(struct input_dev *dev)
 75{
 76	unsigned short joy0dat;
 77	int error;
 78
 79	joy0dat = amiga_custom.joy0dat;
 80
 81	amimouse_lastx = joy0dat & 0xff;
 82	amimouse_lasty = joy0dat >> 8;
 83
 84	error = request_irq(IRQ_AMIGA_VERTB, amimouse_interrupt, 0, "amimouse",
 85			    dev);
 86	if (error)
 87		dev_err(&dev->dev, "Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
 88
 89	return error;
 90}
 91
 92static void amimouse_close(struct input_dev *dev)
 93{
 94	free_irq(IRQ_AMIGA_VERTB, dev);
 95}
 96
 97static int __init amimouse_probe(struct platform_device *pdev)
 98{
 99	int err;
100	struct input_dev *dev;
101
102	dev = input_allocate_device();
103	if (!dev)
104		return -ENOMEM;
105
106	dev->name = pdev->name;
107	dev->phys = "amimouse/input0";
108	dev->id.bustype = BUS_AMIGA;
109	dev->id.vendor = 0x0001;
110	dev->id.product = 0x0002;
111	dev->id.version = 0x0100;
112
113	dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
114	dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
115	dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
116		BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
117	dev->open = amimouse_open;
118	dev->close = amimouse_close;
119	dev->dev.parent = &pdev->dev;
120
121	err = input_register_device(dev);
122	if (err) {
123		input_free_device(dev);
124		return err;
125	}
126
127	platform_set_drvdata(pdev, dev);
128
129	return 0;
130}
131
132static int __exit amimouse_remove(struct platform_device *pdev)
133{
134	struct input_dev *dev = platform_get_drvdata(pdev);
135
 
136	input_unregister_device(dev);
137	return 0;
138}
139
140static struct platform_driver amimouse_driver = {
141	.remove = __exit_p(amimouse_remove),
142	.driver   = {
143		.name	= "amiga-mouse",
 
144	},
145};
146
147module_platform_driver_probe(amimouse_driver, amimouse_probe);
 
 
 
 
 
 
 
 
 
 
 
 
148
149MODULE_ALIAS("platform:amiga-mouse");