forked from Minki/linux
cd354f1ae7
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
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* Acorn RiscPC mouse driver for Linux/ARM
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*
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* Copyright (c) 2000-2002 Vojtech Pavlik
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* Copyright (C) 1996-2002 Russell King
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*
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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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* This handles the Acorn RiscPCs mouse. We basically have a couple of
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* hardware registers that track the sensor count for the X-Y movement and
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* another register holding the button state. On every VSYNC interrupt we read
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* the complete state and then work out if something has changed.
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*/
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#include <linux/module.h>
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#include <linux/ptrace.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <asm/hardware.h>
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#include <asm/irq.h>
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#include <asm/io.h>
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#include <asm/hardware/iomd.h>
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MODULE_AUTHOR("Vojtech Pavlik, Russell King");
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MODULE_DESCRIPTION("Acorn RiscPC mouse driver");
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MODULE_LICENSE("GPL");
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static short rpcmouse_lastx, rpcmouse_lasty;
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static struct input_dev *rpcmouse_dev;
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static irqreturn_t rpcmouse_irq(int irq, void *dev_id)
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{
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struct input_dev *dev = dev_id;
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short x, y, dx, dy, b;
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x = (short) iomd_readl(IOMD_MOUSEX);
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y = (short) iomd_readl(IOMD_MOUSEY);
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b = (short) (__raw_readl(0xe0310000) ^ 0x70);
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dx = x - rpcmouse_lastx;
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dy = y - rpcmouse_lasty;
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rpcmouse_lastx = x;
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rpcmouse_lasty = y;
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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, b & 0x40);
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input_report_key(dev, BTN_MIDDLE, b & 0x20);
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input_report_key(dev, BTN_RIGHT, b & 0x10);
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input_sync(dev);
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return IRQ_HANDLED;
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}
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static int __init rpcmouse_init(void)
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{
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int err;
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rpcmouse_dev = input_allocate_device();
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if (!rpcmouse_dev)
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return -ENOMEM;
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rpcmouse_dev->name = "Acorn RiscPC Mouse";
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rpcmouse_dev->phys = "rpcmouse/input0";
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rpcmouse_dev->id.bustype = BUS_HOST;
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rpcmouse_dev->id.vendor = 0x0005;
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rpcmouse_dev->id.product = 0x0001;
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rpcmouse_dev->id.version = 0x0100;
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rpcmouse_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
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rpcmouse_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
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rpcmouse_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
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rpcmouse_lastx = (short) iomd_readl(IOMD_MOUSEX);
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rpcmouse_lasty = (short) iomd_readl(IOMD_MOUSEY);
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if (request_irq(IRQ_VSYNCPULSE, rpcmouse_irq, IRQF_SHARED, "rpcmouse", rpcmouse_dev)) {
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printk(KERN_ERR "rpcmouse: unable to allocate VSYNC interrupt\n");
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err = -EBUSY;
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goto err_free_dev;
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}
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err = input_register_device(rpcmouse_dev);
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if (err)
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goto err_free_irq;
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return 0;
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err_free_irq:
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free_irq(IRQ_VSYNCPULSE, rpcmouse_dev);
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err_free_dev:
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input_free_device(rpcmouse_dev);
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return err;
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}
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static void __exit rpcmouse_exit(void)
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{
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free_irq(IRQ_VSYNCPULSE, rpcmouse_dev);
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input_unregister_device(rpcmouse_dev);
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}
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module_init(rpcmouse_init);
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module_exit(rpcmouse_exit);
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