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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner4 *5 * Copyright (C) 2010 Malcolm Priestley6 */7 8#ifndef DVB_IX2505V_H9#define DVB_IX2505V_H10 11#include <linux/i2c.h>12#include <media/dvb_frontend.h>13 14/**15 * struct ix2505v_config - ix2505 attachment configuration16 *17 * @tuner_address: tuner address18 * @tuner_gain: Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB19 * @tuner_chargepump: Charge pump output +/- 0=120 1=260 2=555 3=1200(default)20 * @min_delay_ms: delay after tune21 * @tuner_write_only: disables reads22 */23struct 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_config38 * @i2c: pointer to &struct i2c_adapter.39 *40 * return: FE pointer on success, NULL on failure.41 */42extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,43 const struct ix2505v_config *config, struct i2c_adapter *i2c);44#else45static 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#endif52 53#endif /* DVB_IX2505V_H */54