mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 13:40:53 +07:00
78bab93026
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>
57 lines
1.4 KiB
C
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
|