1/*
2 * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License as published by the Free Software Foundation;
7 * either version 2, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
11 * the implied warranty of MERCHANTABILITY or FITNESS FOR
12 * A PARTICULAR PURPOSE.See the GNU General Public License
13 * for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc.,
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20/*
21 * driver for VIA VT1632 DVI Transmitter
22 */
23
24#include <linux/slab.h>
25#include "via_aux.h"
26
27
28static const char *name = "VT1632 DVI Transmitter";
29
30
31static void probe(struct via_aux_bus *bus, u8 addr)
32{
33	struct via_aux_drv drv = {
34		.bus	=	bus,
35		.addr	=	addr,
36		.name	=	name};
37	/* check vendor id and device id */
38	const u8 id[] = {0x06, 0x11, 0x92, 0x31}, len = ARRAY_SIZE(id);
39	u8 tmp[len];
40
41	if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len))
42		return;
43
44	printk(KERN_INFO "viafb: Found %s at address 0x%x\n", name, addr);
45	via_aux_add(&drv);
46}
47
48void via_aux_vt1632_probe(struct via_aux_bus *bus)
49{
50	u8 i;
51
52	for (i = 0x08; i <= 0x0F; i++)
53		probe(bus, i);
54}
55