V4L/DVB (10700): saa7115: don't access reg 0x87 if it is not present.
[linux-2.6] / drivers / media / video / pvrusb2 / pvrusb2-i2c-chips-v4l2.c
1 /*
2  *
3  *
4  *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
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
9  *
10  *  This program is distributed in the hope that it will be useful,
11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  *  GNU General Public License 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  *
19  */
20
21 #include <linux/kernel.h>
22 #include "pvrusb2-i2c-core.h"
23 #include "pvrusb2-hdw-internal.h"
24 #include "pvrusb2-debug.h"
25 #include "pvrusb2-i2c-cmd-v4l2.h"
26 #include "pvrusb2-audio.h"
27 #include "pvrusb2-tuner.h"
28 #include "pvrusb2-video-v4l.h"
29 #include "pvrusb2-cx2584x-v4l.h"
30 #include "pvrusb2-wm8775.h"
31
32 #define trace_i2c(...) pvr2_trace(PVR2_TRACE_I2C,__VA_ARGS__)
33
34 #define OP_INIT 0 /* MUST come first so it is run first */
35 #define OP_STANDARD 1
36 #define OP_AUDIOMODE 2
37 #define OP_BCSH 3
38 #define OP_VOLUME 4
39 #define OP_FREQ 5
40 #define OP_AUDIORATE 6
41 #define OP_CROP 7
42 #define OP_SIZE 8
43 #define OP_LOG 9
44
45 static const struct pvr2_i2c_op * const ops[] = {
46         [OP_INIT] = &pvr2_i2c_op_v4l2_init,
47         [OP_STANDARD] = &pvr2_i2c_op_v4l2_standard,
48         [OP_AUDIOMODE] = &pvr2_i2c_op_v4l2_audiomode,
49         [OP_BCSH] = &pvr2_i2c_op_v4l2_bcsh,
50         [OP_VOLUME] = &pvr2_i2c_op_v4l2_volume,
51         [OP_FREQ] = &pvr2_i2c_op_v4l2_frequency,
52         [OP_CROP] = &pvr2_i2c_op_v4l2_crop,
53         [OP_SIZE] = &pvr2_i2c_op_v4l2_size,
54         [OP_LOG] = &pvr2_i2c_op_v4l2_log,
55 };
56
57 void pvr2_i2c_probe(struct pvr2_hdw *hdw,struct pvr2_i2c_client *cp)
58 {
59         int id;
60         id = cp->client->driver->id;
61         cp->ctl_mask = ((1 << OP_INIT) |
62                         (1 << OP_STANDARD) |
63                         (1 << OP_AUDIOMODE) |
64                         (1 << OP_BCSH) |
65                         (1 << OP_VOLUME) |
66                         (1 << OP_FREQ) |
67                         (1 << OP_CROP) |
68                         (1 << OP_SIZE) |
69                         (1 << OP_LOG));
70         cp->status_poll = pvr2_v4l2_cmd_status_poll;
71
72         if (id == I2C_DRIVERID_MSP3400) {
73                 if (pvr2_i2c_msp3400_setup(hdw,cp)) {
74                         return;
75                 }
76         }
77         if (id == I2C_DRIVERID_TUNER) {
78                 if (pvr2_i2c_tuner_setup(hdw,cp)) {
79                         return;
80                 }
81         }
82         if (id == I2C_DRIVERID_CX25840) {
83                 if (pvr2_i2c_cx2584x_v4l_setup(hdw,cp)) {
84                         return;
85                 }
86         }
87         if (id == I2C_DRIVERID_WM8775) {
88                 if (pvr2_i2c_wm8775_setup(hdw,cp)) {
89                         return;
90                 }
91         }
92         if (id == I2C_DRIVERID_SAA711X) {
93                 if (pvr2_i2c_decoder_v4l_setup(hdw,cp)) {
94                         return;
95                 }
96         }
97 }
98
99
100 const struct pvr2_i2c_op *pvr2_i2c_get_op(unsigned int idx)
101 {
102         if (idx >= ARRAY_SIZE(ops))
103                 return NULL;
104         return ops[idx];
105 }
106
107
108 /*
109   Stuff for Emacs to see, in order to encourage consistent editing style:
110   *** Local Variables: ***
111   *** mode: c ***
112   *** fill-column: 75 ***
113   *** tab-width: 8 ***
114   *** c-basic-offset: 8 ***
115   *** End: ***
116   */