blob: 671c0e0959f7671ceae7101ef3a68ea1f9b01d4f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/* SPDX-License-Identifier: GPL-2.0-only */
/**
* Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner
*
* Copyright (C) 2010 Malcolm Priestley
*/
#ifndef DVB_IX2505V_H
#define DVB_IX2505V_H
#include <linux/i2c.h>
#include <media/dvb_frontend.h>
/**
* struct ix2505v_config - ix2505 attachment configuration
*
* @tuner_address: tuner address
* @tuner_gain: Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB
* @tuner_chargepump: Charge pump output +/- 0=120 1=260 2=555 3=1200(default)
* @min_delay_ms: delay after tune
* @tuner_write_only: disables reads
*/
struct ix2505v_config {
u8 tuner_address;
u8 tuner_gain;
u8 tuner_chargepump;
int min_delay_ms;
u8 tuner_write_only;
};
#if IS_REACHABLE(CONFIG_DVB_IX2505V)
/**
* Attach a ix2505v tuner to the supplied frontend structure.
*
* @fe: Frontend to attach to.
* @config: pointer to &struct ix2505v_config
* @i2c: pointer to &struct i2c_adapter.
*
* return: FE pointer on success, NULL on failure.
*/
extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
const struct ix2505v_config *config, struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
const struct ix2505v_config *config, struct i2c_adapter *i2c)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif /* DVB_IX2505V_H */
|
