linux/drivers/media/tuners/si2157_priv.h
Antti Palosaari 78bab93026 [media] si2157: detect if firmware is running
Detect if firmware is running run-time and download / start it only
when needed. Detection is done by reading IF frequency value.
Garbage value is returned by firmware when it is not running,
otherwise correct value is returned.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-06 10:07:45 -03:00

57 lines
1.4 KiB
C

/*
* Silicon Labs Si2146/2147/2148/2157/2158 silicon tuner driver
*
* Copyright (C) 2014 Antti Palosaari <crope@iki.fi>
*
* 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.
*/
#ifndef SI2157_PRIV_H
#define SI2157_PRIV_H
#include <linux/firmware.h>
#include <media/v4l2-mc.h>
#include "si2157.h"
/* state struct */
struct si2157_dev {
struct mutex i2c_mutex;
struct dvb_frontend *fe;
bool active;
bool inversion;
u8 chiptype;
u8 if_port;
u32 if_frequency;
struct delayed_work stat_work;
#if defined(CONFIG_MEDIA_CONTROLLER)
struct media_device *mdev;
struct media_entity ent;
struct media_pad pad[TUNER_NUM_PADS];
#endif
};
#define SI2157_CHIPTYPE_SI2157 0
#define SI2157_CHIPTYPE_SI2146 1
/* firmware command struct */
#define SI2157_ARGLEN 30
struct si2157_cmd {
u8 args[SI2157_ARGLEN];
unsigned wlen;
unsigned rlen;
};
#define SI2158_A20_FIRMWARE "dvb-tuner-si2158-a20-01.fw"
#endif