[mirror_ubuntu-hirsute-kernel.git] / drivers / media / dvb-frontends / ix2505v.h

/**
 * Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner
 *
 * Copyright (C) 2010 Malcolm Priestley
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 2, as
 * published by the Free Software Foundation.
 *
 * 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 DVB_IX2505V_H
#define DVB_IX2505V_H

#include <linux/i2c.h>
#include "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 */
Commit	Line	Data
1ae2c589 MP	1	/**
	2	* Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner
	3	*
	4	* Copyright (C) 2010 Malcolm Priestley
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License Version 2, as
	8	* published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
1ae2c589 MP	14	*/
	15
	16	#ifndef DVB_IX2505V_H
	17	#define DVB_IX2505V_H
	18
	19	#include <linux/i2c.h>
	20	#include "dvb_frontend.h"
	21
be9b53c8 MCC	22	/**
	23	* struct ix2505v_config - ix2505 attachment configuration
	24	*
	25	* @tuner_address: tuner address
	26	* @tuner_gain: Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB
	27	* @tuner_chargepump: Charge pump output +/- 0=120 1=260 2=555 3=1200(default)
	28	* @min_delay_ms: delay after tune
	29	* @tuner_write_only: disables reads
	30	*/
1ae2c589 MP	31	struct ix2505v_config {
1ae2c589 MP	32	u8 tuner_address;
1ae2c589	33	u8 tuner_gain;
1ae2c589	34	u8 tuner_chargepump;
1ae2c589	35	int min_delay_ms;
1ae2c589 MP	36	u8 tuner_write_only;
	37
	38	};
	39
9b174527	40	#if IS_REACHABLE(CONFIG_DVB_IX2505V)
b95b0c98 MCC	41	/**
	42	* Attach a ix2505v tuner to the supplied frontend structure.
	43	*
	44	* @fe: Frontend to attach to.
	45	* @config: pointer to &struct ix2505v_config
	46	* @i2c: pointer to &struct i2c_adapter.
	47	*
	48	* return: FE pointer on success, NULL on failure.
	49	*/
1ae2c589 MP	50	extern struct dvb_frontend ix2505v_attach(struct dvb_frontend fe,
	51	const struct ix2505v_config config, struct i2c_adapter i2c);
	52	#else
	53	static inline struct dvb_frontend ix2505v_attach(struct dvb_frontend fe,
	54	const struct ix2505v_config config, struct i2c_adapter i2c)
	55	{
	56	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	57	return NULL;
	58	}
	59	#endif
	60
	61	#endif /* DVB_IX2505V_H */