1 /*
2  *  Driver for the Auvitek USB bridge
3  *
4  *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *
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 /* We'll start to rename these registers once we have a better
23  * understanding of their meaning.
24  */
25 #define REG_000 0x000
26 #define REG_001 0x001
27 #define REG_002 0x002
28 #define REG_003 0x003
29 
30 #define AU0828_SENSORCTRL_100 0x100
31 #define AU0828_SENSORCTRL_VBI_103 0x103
32 
33 /* I2C registers */
34 #define AU0828_I2C_TRIGGER_200		0x200
35 #define AU0828_I2C_STATUS_201		0x201
36 #define AU0828_I2C_CLK_DIVIDER_202	0x202
37 #define AU0828_I2C_DEST_ADDR_203	0x203
38 #define AU0828_I2C_WRITE_FIFO_205	0x205
39 #define AU0828_I2C_READ_FIFO_209	0x209
40 #define AU0828_I2C_MULTIBYTE_MODE_2FF	0x2ff
41 
42 /* Audio registers */
43 #define AU0828_AUDIOCTRL_50C 0x50C
44 
45 #define REG_600 0x600
46 
47 /*********************************************************************/
48 /* Here are constants for values associated with the above registers */
49 
50 /* I2C Trigger (Reg 0x200) */
51 #define AU0828_I2C_TRIGGER_WRITE	0x01
52 #define AU0828_I2C_TRIGGER_READ		0x20
53 #define AU0828_I2C_TRIGGER_HOLD		0x40
54 
55 /* I2C Status (Reg 0x201) */
56 #define AU0828_I2C_STATUS_READ_DONE	0x01
57 #define AU0828_I2C_STATUS_NO_READ_ACK	0x02
58 #define AU0828_I2C_STATUS_WRITE_DONE	0x04
59 #define AU0828_I2C_STATUS_NO_WRITE_ACK	0x08
60 #define AU0828_I2C_STATUS_BUSY		0x10
61 
62 /* I2C Clock Divider (Reg 0x202) */
63 #define AU0828_I2C_CLK_250KHZ 0x07
64 #define AU0828_I2C_CLK_100KHZ 0x14
65 #define AU0828_I2C_CLK_30KHZ  0x40
66 #define AU0828_I2C_CLK_20KHZ  0x60
67