| 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 | * ix2505v_attach - 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 */ |
|---|
| 54 | |
|---|
