[mirror_ubuntu-bionic-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/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 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 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 }
};
MODULE_DEVICE_TABLE(pci, fm801_gp_id_table);

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

module_pci_driver(fm801_gp_driver);

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>
1da177e4 LT	30	#include <linux/slab.h>
	31	#include <linux/gameport.h>
	32
	33	#define PCI_VENDOR_ID_FORTEMEDIA 0x1319
	34	#define PCI_DEVICE_ID_FM801_GP 0x0802
	35
	36	#define HAVE_COOKED
	37
	38	struct fm801_gp {
	39	struct gameport *gameport;
	40	struct resource *res_port;
	41	};
	42
	43	#ifdef HAVE_COOKED
	44	static int fm801_gp_cooked_read(struct gameport gameport, int axes, int *buttons)
	45	{
	46	unsigned short w;
	47
	48	w = inw(gameport->io + 2);
	49	*buttons = (~w >> 14) & 0x03;
	50	axes[0] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	51	w = inw(gameport->io + 4);
	52	axes[1] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	53	w = inw(gameport->io + 6);
	54	*buttons \|= ((~w >> 14) & 0x03) << 2;
	55	axes[2] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	56	w = inw(gameport->io + 8);
	57	axes[3] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
	58	outw(0xff, gameport->io); /* reset */
	59
	60	return 0;
	61	}
	62	#endif
	63
	64	static int fm801_gp_open(struct gameport *gameport, int mode)
	65	{
	66	switch (mode) {
	67	#ifdef HAVE_COOKED
	68	case GAMEPORT_MODE_COOKED:
	69	return 0;
	70	#endif
	71	case GAMEPORT_MODE_RAW:
	72	return 0;
	73	default:
	74	return -1;
	75	}
	76
	77	return 0;
	78	}
	79
5298cc4c	80	static int fm801_gp_probe(struct pci_dev pci, const struct pci_device_id id)
1da177e4 LT	81	{
	82	struct fm801_gp *gp;
	83	struct gameport *port;
b435fdcd	84	int error;
1da177e4	85
a97e148a	86	gp = kzalloc(sizeof(struct fm801_gp), GFP_KERNEL);
1da177e4 LT	87	port = gameport_allocate_port();
	88	if (!gp \|\| !port) {
	89	printk(KERN_ERR "fm801-gp: Memory allocation failed\n");
b435fdcd JG	90	error = -ENOMEM;
b435fdcd JG	91	goto err_out_free;
1da177e4 LT	92	}
1da177e4 LT	93
b435fdcd JG	94	error = pci_enable_device(pci);
	95	if (error)
	96	goto err_out_free;
1da177e4 LT	97
	98	port->open = fm801_gp_open;
	99	#ifdef HAVE_COOKED
	100	port->cooked_read = fm801_gp_cooked_read;
	101	#endif
	102	gameport_set_name(port, "FM801");
	103	gameport_set_phys(port, "pci%s/gameport0", pci_name(pci));
	104	port->dev.parent = &pci->dev;
	105	port->io = pci_resource_start(pci, 0);
	106
	107	gp->gameport = port;
	108	gp->res_port = request_region(port->io, 0x10, "FM801 GP");
	109	if (!gp->res_port) {
1da177e4 LT	110	printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n",
1da177e4 LT	111	port->io, port->io + 0x0f);
b435fdcd JG	112	error = -EBUSY;
b435fdcd JG	113	goto err_out_disable_dev;
1da177e4 LT	114	}
	115
	116	pci_set_drvdata(pci, gp);
	117
	118	outb(0x60, port->io + 0x0d); /* enable joystick 1 and 2 */
	119	gameport_register_port(port);
	120
	121	return 0;
b435fdcd JG	122
	123	err_out_disable_dev:
	124	pci_disable_device(pci);
	125	err_out_free:
	126	gameport_free_port(port);
	127	kfree(gp);
	128	return error;
1da177e4 LT	129	}
1da177e4 LT	130
e2619cf7	131	static void fm801_gp_remove(struct pci_dev *pci)
1da177e4 LT	132	{
	133	struct fm801_gp *gp = pci_get_drvdata(pci);
	134
d345d970 DT	135	gameport_unregister_port(gp->gameport);
	136	release_resource(gp->res_port);
	137	kfree(gp);
	138
	139	pci_disable_device(pci);
1da177e4 LT	140	}
1da177e4 LT	141
a9844b18	142	static const struct pci_device_id fm801_gp_id_table[] = {
1da177e4 LT	143	{ PCI_VENDOR_ID_FORTEMEDIA, PCI_DEVICE_ID_FM801_GP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
	144	{ 0 }
	145	};
5d066474	146	MODULE_DEVICE_TABLE(pci, fm801_gp_id_table);
1da177e4 LT	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,
1cb0aa88	152	.remove = fm801_gp_remove,
1da177e4 LT	153	};
1da177e4 LT	154
5d066474	155	module_pci_driver(fm801_gp_driver);
1da177e4	156
f445da83	157	MODULE_DESCRIPTION("FM801 gameport driver");
1da177e4 LT	158	MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
1da177e4 LT	159	MODULE_LICENSE("GPL");