[mirror_ubuntu-artful-kernel.git] / drivers / input / gameport / fm801-gp.c

/*
 *  FM801 gameport driver for Linux
 *
 *  Copyright (c) by Takashi Iwai <tiwai@suse.de>
 *
 *
 *   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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#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/gameport.h>

#define PCI_VENDOR_ID_FORTEMEDIA	0x1319
#define PCI_DEVICE_ID_FM801_GP	0x0802

#define HAVE_COOKED

struct fm801_gp {
	struct gameport *gameport;
	struct resource *res_port;
};

#ifdef HAVE_COOKED
static int fm801_gp_cooked_read(struct gameport *gameport, int *axes, int *buttons)
{
	unsigned short w;

	w = inw(gameport->io + 2);
	*buttons = (~w >> 14) & 0x03;
	axes[0] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	w = inw(gameport->io + 4);
	axes[1] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	w = inw(gameport->io + 6);
	*buttons |= ((~w >> 14) & 0x03) << 2;
	axes[2] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	w = inw(gameport->io + 8);
	axes[3] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	outw(0xff, gameport->io); /* reset */

        return 0;
}
#endif

static int fm801_gp_open(struct gameport *gameport, int mode)
{
	switch (mode) {
#ifdef HAVE_COOKED
	case GAMEPORT_MODE_COOKED:
		return 0;
#endif
	case GAMEPORT_MODE_RAW:
		return 0;
	default:
		return -1;
	}

	return 0;
}

static int __devinit fm801_gp_probe(struct pci_dev *pci, const struct pci_device_id *id)
{
	struct fm801_gp *gp;
	struct gameport *port;
	int error;

	gp = kzalloc(sizeof(struct fm801_gp), GFP_KERNEL);
	port = gameport_allocate_port();
	if (!gp || !port) {
		printk(KERN_ERR "fm801-gp: Memory allocation failed\n");
		error = -ENOMEM;
		goto err_out_free;
	}

	error = pci_enable_device(pci);
	if (error)
		goto err_out_free;

	port->open = fm801_gp_open;
#ifdef HAVE_COOKED
	port->cooked_read = fm801_gp_cooked_read;
#endif
	gameport_set_name(port, "FM801");
	gameport_set_phys(port, "pci%s/gameport0", pci_name(pci));
	port->dev.parent = &pci->dev;
	port->io = pci_resource_start(pci, 0);

	gp->gameport = port;
	gp->res_port = request_region(port->io, 0x10, "FM801 GP");
	if (!gp->res_port) {
		printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n",
			port->io, port->io + 0x0f);
		error = -EBUSY;
		goto err_out_disable_dev;
	}

	pci_set_drvdata(pci, gp);

	outb(0x60, port->io + 0x0d); /* enable joystick 1 and 2 */
	gameport_register_port(port);

	return 0;

 err_out_disable_dev:
	pci_disable_device(pci);
 err_out_free:
	gameport_free_port(port);
	kfree(gp);
	return error;
}

static void __devexit fm801_gp_remove(struct pci_dev *pci)
{
	struct fm801_gp *gp = pci_get_drvdata(pci);

	gameport_unregister_port(gp->gameport);
	release_resource(gp->res_port);
	kfree(gp);

	pci_disable_device(pci);
}

static const struct pci_device_id fm801_gp_id_table[] = {
	{ PCI_VENDOR_ID_FORTEMEDIA, PCI_DEVICE_ID_FM801_GP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0  },
	{ 0 }
};

static struct pci_driver fm801_gp_driver = {
	.name =		"FM801_gameport",
	.id_table =	fm801_gp_id_table,
	.probe =	fm801_gp_probe,
	.remove =	__devexit_p(fm801_gp_remove),
};

static int __init fm801_gp_init(void)
{
	return pci_register_driver(&fm801_gp_driver);
}

static void __exit fm801_gp_exit(void)
{
	pci_unregister_driver(&fm801_gp_driver);
}

module_init(fm801_gp_init);
module_exit(fm801_gp_exit);

MODULE_DEVICE_TABLE(pci, fm801_gp_id_table);

MODULE_DESCRIPTION("FM801 gameport driver");
MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* FM801 gameport driver for Linux
	3	*
	4	* Copyright (c) by Takashi Iwai <tiwai@suse.de>
	5	*
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	20	*
	21	*/
	22
	23	#include <asm/io.h>
	24	#include <linux/delay.h>
	25	#include <linux/errno.h>
	26	#include <linux/ioport.h>
	27	#include <linux/kernel.h>
	28	#include <linux/module.h>
	29	#include <linux/pci.h>
	30	#include <linux/init.h>
	31	#include <linux/slab.h>
	32	#include <linux/gameport.h>
	33
	34	#define PCI_VENDOR_ID_FORTEMEDIA 0x1319
	35	#define PCI_DEVICE_ID_FM801_GP 0x0802
	36
	37	#define HAVE_COOKED
	38
	39	struct fm801_gp {
	40	struct gameport *gameport;
	41	struct resource *res_port;
	42	};
	43
	44	#ifdef HAVE_COOKED
	45	static int fm801_gp_cooked_read(struct gameport gameport, int axes, int *buttons)
	46	{
	47	unsigned short w;
	48
	49	w = inw(gameport->io + 2);
	50	*buttons = (~w >> 14) & 0x03;
	51	axes[0] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	52	w = inw(gameport->io + 4);
	53	axes[1] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	54	w = inw(gameport->io + 6);
	55	*buttons \|= ((~w >> 14) & 0x03) << 2;
	56	axes[2] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	57	w = inw(gameport->io + 8);
	58	axes[3] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	59	outw(0xff, gameport->io); /* reset */
	60
	61	return 0;
	62	}
	63	#endif
	64
65	static int fm801_gp_open(struct gameport *gameport, int mode)
66	{
67	switch (mode) {
68	#ifdef HAVE_COOKED
69	case GAMEPORT_MODE_COOKED:
70	return 0;
71	#endif
72	case GAMEPORT_MODE_RAW:
73	return 0;
74	default:
75	return -1;
76	}
77
78	return 0;
79	}
80
81	static int __devinit fm801_gp_probe(struct pci_dev pci, const struct pci_device_id id)
82	{
83	struct fm801_gp *gp;
84	struct gameport *port;
b435fdcd	85	int error;
1da177e4	86
a97e148a	87	gp = kzalloc(sizeof(struct fm801_gp), GFP_KERNEL);
1da177e4 LT	88	port = gameport_allocate_port();
	89	if (!gp \|\| !port) {
	90	printk(KERN_ERR "fm801-gp: Memory allocation failed\n");
b435fdcd JG	91	error = -ENOMEM;
b435fdcd JG	92	goto err_out_free;
1da177e4 LT	93	}
1da177e4 LT	94
b435fdcd JG	95	error = pci_enable_device(pci);
	96	if (error)
	97	goto err_out_free;
1da177e4 LT	98
	99	port->open = fm801_gp_open;
	100	#ifdef HAVE_COOKED
	101	port->cooked_read = fm801_gp_cooked_read;
	102	#endif
	103	gameport_set_name(port, "FM801");
	104	gameport_set_phys(port, "pci%s/gameport0", pci_name(pci));
	105	port->dev.parent = &pci->dev;
	106	port->io = pci_resource_start(pci, 0);
	107
	108	gp->gameport = port;
	109	gp->res_port = request_region(port->io, 0x10, "FM801 GP");
	110	if (!gp->res_port) {
1da177e4 LT	111	printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n",
1da177e4 LT	112	port->io, port->io + 0x0f);
b435fdcd JG	113	error = -EBUSY;
b435fdcd JG	114	goto err_out_disable_dev;
1da177e4 LT	115	}
	116
	117	pci_set_drvdata(pci, gp);
	118
	119	outb(0x60, port->io + 0x0d); /* enable joystick 1 and 2 */
	120	gameport_register_port(port);
	121
	122	return 0;
b435fdcd JG	123
	124	err_out_disable_dev:
	125	pci_disable_device(pci);
	126	err_out_free:
	127	gameport_free_port(port);
	128	kfree(gp);
	129	return error;
1da177e4 LT	130	}
	131
	132	static void __devexit fm801_gp_remove(struct pci_dev *pci)
	133	{
	134	struct fm801_gp *gp = pci_get_drvdata(pci);
	135
d345d970 DT	136	gameport_unregister_port(gp->gameport);
	137	release_resource(gp->res_port);
	138	kfree(gp);
	139
	140	pci_disable_device(pci);
1da177e4 LT	141	}
1da177e4 LT	142
a9844b18	143	static const struct pci_device_id fm801_gp_id_table[] = {
1da177e4 LT	144	{ PCI_VENDOR_ID_FORTEMEDIA, PCI_DEVICE_ID_FM801_GP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
	145	{ 0 }
	146	};
	147
	148	static struct pci_driver fm801_gp_driver = {
	149	.name = "FM801_gameport",
	150	.id_table = fm801_gp_id_table,
	151	.probe = fm801_gp_probe,
	152	.remove = __devexit_p(fm801_gp_remove),
	153	};
	154
	155	static int __init fm801_gp_init(void)
	156	{
	157	return pci_register_driver(&fm801_gp_driver);
	158	}
	159
	160	static void __exit fm801_gp_exit(void)
	161	{
	162	pci_unregister_driver(&fm801_gp_driver);
	163	}
	164
	165	module_init(fm801_gp_init);
	166	module_exit(fm801_gp_exit);
	167
	168	MODULE_DEVICE_TABLE(pci, fm801_gp_id_table);
	169
f445da83	170	MODULE_DESCRIPTION("FM801 gameport driver");
1da177e4 LT	171	MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
1da177e4 LT	172	MODULE_LICENSE("GPL");