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