21340ae03a
Loading the firmware using the i2c bit-banging code blocks the kernel. Move the firmware load code into a workqueue so that it plays well with other processes. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
79 lines
3.1 KiB
C
79 lines
3.1 KiB
C
/* cx25840 internal API header
|
|
*
|
|
* Copyright (C) 2003-2004 Chris Kennedy
|
|
*
|
|
* 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
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef _CX25840_CORE_H_
|
|
#define _CX25840_CORE_H_
|
|
|
|
|
|
#include <linux/videodev2.h>
|
|
#include <linux/i2c.h>
|
|
|
|
extern int cx25840_debug;
|
|
|
|
/* ENABLE_PVR150_WORKAROUND activates a workaround for a hardware bug that is
|
|
present in Hauppauge PVR-150 (and possibly PVR-500) cards that have
|
|
certain NTSC tuners (tveeprom tuner model numbers 85, 99 and 112). The
|
|
audio autodetect fails on some channels for these models and the workaround
|
|
is to select the audio standard explicitly. Many thanks to Hauppauge for
|
|
providing this information. */
|
|
#define CX25840_CID_ENABLE_PVR150_WORKAROUND (V4L2_CID_PRIVATE_BASE+0)
|
|
|
|
struct cx25840_state {
|
|
struct i2c_client *c;
|
|
int pvr150_workaround;
|
|
int radio;
|
|
enum cx25840_video_input vid_input;
|
|
enum cx25840_audio_input aud_input;
|
|
u32 audclk_freq;
|
|
int audmode;
|
|
int unmute_volume; /* -1 if not muted */
|
|
int vbi_line_offset;
|
|
u32 id;
|
|
u32 rev;
|
|
int is_cx25836;
|
|
int is_initialized;
|
|
wait_queue_head_t fw_wait; /* wake up when the fw load is finished */
|
|
struct work_struct fw_work; /* work entry for fw load */
|
|
};
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
/* cx25850-core.c */
|
|
int cx25840_write(struct i2c_client *client, u16 addr, u8 value);
|
|
int cx25840_write4(struct i2c_client *client, u16 addr, u32 value);
|
|
u8 cx25840_read(struct i2c_client *client, u16 addr);
|
|
u32 cx25840_read4(struct i2c_client *client, u16 addr);
|
|
int cx25840_and_or(struct i2c_client *client, u16 addr, unsigned mask, u8 value);
|
|
v4l2_std_id cx25840_get_v4lstd(struct i2c_client *client);
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
/* cx25850-firmware.c */
|
|
int cx25840_loadfw(struct i2c_client *client);
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
/* cx25850-audio.c */
|
|
int cx25840_audio(struct i2c_client *client, unsigned int cmd, void *arg);
|
|
void cx25840_audio_set_path(struct i2c_client *client);
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
/* cx25850-vbi.c */
|
|
void cx25840_vbi_setup(struct i2c_client *client);
|
|
int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg);
|
|
|
|
#endif
|