File: via_aux_vt1622.c

package info (click to toggle)
linux 4.9.228-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 814,720 kB
  • sloc: ansic: 14,532,095; asm: 289,032; makefile: 35,316; perl: 27,556; sh: 17,027; python: 13,390; cpp: 6,103; yacc: 4,354; lex: 2,440; awk: 1,212; pascal: 231; lisp: 218; sed: 21
file content (50 lines) | stat: -rw-r--r-- 1,358 bytes parent folder | download | duplicates (26)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
/*
 * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.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, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; 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.
 */
/*
 * driver for VIA VT1622(M) Digital TV Encoder
 */

#include <linux/slab.h>
#include "via_aux.h"


static const char *name = "VT1622(M) Digital TV Encoder";


static void probe(struct via_aux_bus *bus, u8 addr)
{
	struct via_aux_drv drv = {
		.bus	=	bus,
		.addr	=	addr,
		.name	=	name};
	u8 tmp;

	if (!via_aux_read(&drv, 0x1B, &tmp, 1) ||  tmp != 0x03)
		return;

	printk(KERN_INFO "viafb: Found %s at address 0x%x\n", name, addr);
	via_aux_add(&drv);
}

void via_aux_vt1622_probe(struct via_aux_bus *bus)
{
	probe(bus, 0x20);
	probe(bus, 0x21);
}