/* * $Id: vortex.c,v 1.5 2002/07/01 15:39:30 vojtech Exp $ * *  Copyright (c) 2000-2001 Vojtech Pavlik * *  Based on the work of: *	Raymond Ingles *//* * Trident 4DWave and Aureal Vortex gameport driver for Linux *//* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Should you need to contact me, the author, you can do so either by * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic */#include <asm/io.h>#include <linux/delay.h>#include <linux/errno.h>#include <linux/ioport.h>#include <linux/kernel.h>#include <linux/module.h>#include <linux/pci.h>#include <linux/init.h>#include <linux/slab.h>#include <linux/delay.h>#include <linux/gameport.h>MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");MODULE_DESCRIPTION("Aureal Vortex and Vortex2 gameport driver");MODULE_LICENSE("GPL");#define VORTEX_GCR		0x0c	/* Gameport control register */#define VORTEX_LEG		0x08	/* Legacy port location */#define VORTEX_AXD		0x10	/* Axes start */#define VORTEX_DATA_WAIT	20	/* 20 ms */struct vortex {	struct gameport gameport;	struct pci_dev *dev;        unsigned char *base;        unsigned char *io;	char phys[32];};static unsigned char vortex_read(struct gameport *gameport){	struct vortex *vortex = gameport->driver;	return readb(vortex->io + VORTEX_LEG);}static void vortex_trigger(struct gameport *gameport){	struct vortex *vortex = gameport->driver;	writeb(0xff, vortex->io + VORTEX_LEG);}static int vortex_cooked_read(struct gameport *gameport, int *axes, int *buttons){	struct vortex *vortex = gameport->driver;	int i;	*buttons = (~readb(vortex->base + VORTEX_LEG) >> 4) & 0xf;	for (i = 0; i < 4; i++) {		axes[i] = readw(vortex->io + VORTEX_AXD + i * sizeof(u32));		if (axes[i] == 0x1fff) axes[i] = -1;	}        return 0;}static int vortex_open(struct gameport *gameport, int mode){	struct vortex *vortex = gameport->driver;	switch (mode) {		case GAMEPORT_MODE_COOKED:			writeb(0x40, vortex->io + VORTEX_GCR);			msleep(VORTEX_DATA_WAIT);			return 0;		case GAMEPORT_MODE_RAW:			writeb(0x00, vortex->io + VORTEX_GCR);			return 0;		default:			return -1;	}	return 0;}static int __devinit vortex_probe(struct pci_dev *dev, const struct pci_device_id *id){	struct vortex *vortex;	int i;	if (!(vortex = kmalloc(sizeof(struct vortex), GFP_KERNEL)))		return -1;        memset(vortex, 0, sizeof(struct vortex));	vortex->dev = dev;	sprintf(vortex->phys, "pci%s/gameport0", pci_name(dev));	pci_set_drvdata(dev, vortex);	vortex->gameport.driver = vortex;	vortex->gameport.fuzz = 64;	vortex->gameport.read = vortex_read;	vortex->gameport.trigger = vortex_trigger;	vortex->gameport.cooked_read = vortex_cooked_read;	vortex->gameport.open = vortex_open;	vortex->gameport.name = pci_name(dev);	vortex->gameport.phys = vortex->phys;	vortex->gameport.id.bustype = BUS_PCI;	vortex->gameport.id.vendor = dev->vendor;	vortex->gameport.id.product = dev->device;	for (i = 0; i < 6; i++)		if (~pci_resource_flags(dev, i) & IORESOURCE_IO)			break;	pci_enable_device(dev);	vortex->base = ioremap(pci_resource_start(vortex->dev, i),				pci_resource_len(vortex->dev, i));	vortex->io = vortex->base + id->driver_data;	gameport_register_port(&vortex->gameport);	printk(KERN_INFO "gameport at pci%s speed %d kHz\n",		pci_name(dev), vortex->gameport.speed);	return 0;}static void __devexit vortex_remove(struct pci_dev *dev){	struct vortex *vortex = pci_get_drvdata(dev);	gameport_unregister_port(&vortex->gameport);	iounmap(vortex->base);	kfree(vortex);}static struct pci_device_id vortex_id_table[] ={{ 0x12eb, 0x0001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0x11000 }, { 0x12eb, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0x28800 }, { 0 }};static struct pci_driver vortex_driver = {	.name =		"vortex",	.id_table =	vortex_id_table,	.probe =	vortex_probe,	.remove =	__devexit_p(vortex_remove),};int __init vortex_init(void){	return pci_module_init(&vortex_driver);}void __exit vortex_exit(void){	pci_unregister_driver(&vortex_driver);}module_init(vortex_init);module_exit(vortex_exit);