1 /* cx25840 internal API header
3 * Copyright (C) 2003-2004 Chris Kennedy
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
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.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 #ifndef _CX25840_CORE_H_
21 #define _CX25840_CORE_H_
24 #include <linux/videodev2.h>
25 #include <media/v4l2-device.h>
26 #include <linux/i2c.h>
28 /* ENABLE_PVR150_WORKAROUND activates a workaround for a hardware bug that is
29 present in Hauppauge PVR-150 (and possibly PVR-500) cards that have
30 certain NTSC tuners (tveeprom tuner model numbers 85, 99 and 112). The
31 audio autodetect fails on some channels for these models and the workaround
32 is to select the audio standard explicitly. Many thanks to Hauppauge for
33 providing this information. */
34 #define CX25840_CID_ENABLE_PVR150_WORKAROUND (V4L2_CID_PRIVATE_BASE+0)
36 struct cx25840_state {
38 struct v4l2_subdev sd;
39 int pvr150_workaround;
42 enum cx25840_video_input vid_input;
43 enum cx25840_audio_input aud_input;
46 int unmute_volume; /* -1 if not muted */
54 wait_queue_head_t fw_wait; /* wake up when the fw load is finished */
55 struct work_struct fw_work; /* work entry for fw load */
58 static inline struct cx25840_state *to_state(struct v4l2_subdev *sd)
60 return container_of(sd, struct cx25840_state, sd);
63 /* ----------------------------------------------------------------------- */
65 int cx25840_write(struct i2c_client *client, u16 addr, u8 value);
66 int cx25840_write4(struct i2c_client *client, u16 addr, u32 value);
67 u8 cx25840_read(struct i2c_client *client, u16 addr);
68 u32 cx25840_read4(struct i2c_client *client, u16 addr);
69 int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned mask, u8 value);
70 void cx25840_std_setup(struct i2c_client *client);
72 /* ----------------------------------------------------------------------- */
73 /* cx25850-firmware.c */
74 int cx25840_loadfw(struct i2c_client *client);
76 /* ----------------------------------------------------------------------- */
78 int cx25840_audio(struct i2c_client *client, unsigned int cmd, void *arg);
79 void cx25840_audio_set_path(struct i2c_client *client);
81 /* ----------------------------------------------------------------------- */
83 int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg);