mirror of
				https://github.com/torvalds/linux.git
				synced 2025-11-04 02:30:34 +02:00 
			
		
		
		
	This was entirely automated, using the script by Al:
  PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
  sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
        $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)
to do the replacement at the end of the merge window.
Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
		
	
			
		
			
				
	
	
		
			149 lines
		
	
	
	
		
			3.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			149 lines
		
	
	
	
		
			3.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 *  Amiga mouse driver for Linux/m68k
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 *
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 *  Copyright (c) 2000-2002 Vojtech Pavlik
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 *
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 *  Based on the work of:
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 *	Michael Rausch		James Banks
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 *	Matther Dillon		David Giller
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 *	Nathan Laredo		Linus Torvalds
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 *	Johan Myreen		Jes Sorensen
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 *	Russell King
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 */
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/*
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 * This program is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 as published by
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 * the Free Software Foundation
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 */
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <asm/irq.h>
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#include <asm/setup.h>
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#include <linux/uaccess.h>
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#include <asm/amigahw.h>
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#include <asm/amigaints.h>
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION("Amiga mouse driver");
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MODULE_LICENSE("GPL");
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static int amimouse_lastx, amimouse_lasty;
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static irqreturn_t amimouse_interrupt(int irq, void *data)
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{
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	struct input_dev *dev = data;
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	unsigned short joy0dat, potgor;
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	int nx, ny, dx, dy;
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	joy0dat = amiga_custom.joy0dat;
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	nx = joy0dat & 0xff;
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	ny = joy0dat >> 8;
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	dx = nx - amimouse_lastx;
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	dy = ny - amimouse_lasty;
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	if (dx < -127) dx = (256 + nx) - amimouse_lastx;
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	if (dx >  127) dx = (nx - 256) - amimouse_lastx;
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	if (dy < -127) dy = (256 + ny) - amimouse_lasty;
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	if (dy >  127) dy = (ny - 256) - amimouse_lasty;
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	amimouse_lastx = nx;
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	amimouse_lasty = ny;
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	potgor = amiga_custom.potgor;
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	input_report_rel(dev, REL_X, dx);
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	input_report_rel(dev, REL_Y, dy);
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	input_report_key(dev, BTN_LEFT,   ciaa.pra & 0x40);
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	input_report_key(dev, BTN_MIDDLE, potgor & 0x0100);
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	input_report_key(dev, BTN_RIGHT,  potgor & 0x0400);
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	input_sync(dev);
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	return IRQ_HANDLED;
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}
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static int amimouse_open(struct input_dev *dev)
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{
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	unsigned short joy0dat;
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	int error;
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	joy0dat = amiga_custom.joy0dat;
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	amimouse_lastx = joy0dat & 0xff;
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	amimouse_lasty = joy0dat >> 8;
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	error = request_irq(IRQ_AMIGA_VERTB, amimouse_interrupt, 0, "amimouse",
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			    dev);
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	if (error)
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		dev_err(&dev->dev, "Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
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	return error;
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}
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static void amimouse_close(struct input_dev *dev)
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{
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	free_irq(IRQ_AMIGA_VERTB, dev);
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}
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static int __init amimouse_probe(struct platform_device *pdev)
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{
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	int err;
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	struct input_dev *dev;
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	dev = input_allocate_device();
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	if (!dev)
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		return -ENOMEM;
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	dev->name = pdev->name;
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	dev->phys = "amimouse/input0";
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	dev->id.bustype = BUS_AMIGA;
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	dev->id.vendor = 0x0001;
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	dev->id.product = 0x0002;
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	dev->id.version = 0x0100;
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	dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
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	dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
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	dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
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		BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
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	dev->open = amimouse_open;
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	dev->close = amimouse_close;
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	dev->dev.parent = &pdev->dev;
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	err = input_register_device(dev);
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	if (err) {
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		input_free_device(dev);
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		return err;
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	}
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	platform_set_drvdata(pdev, dev);
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	return 0;
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}
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static int __exit amimouse_remove(struct platform_device *pdev)
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{
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	struct input_dev *dev = platform_get_drvdata(pdev);
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	input_unregister_device(dev);
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	return 0;
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}
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static struct platform_driver amimouse_driver = {
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	.remove = __exit_p(amimouse_remove),
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	.driver   = {
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		.name	= "amiga-mouse",
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	},
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};
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module_platform_driver_probe(amimouse_driver, amimouse_probe);
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MODULE_ALIAS("platform:amiga-mouse");
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