linux/drivers/media/dvb-frontends/cxd2820r.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Sony CXD2820R demodulator driver
 *
 * Copyright (C) 2010 Antti Palosaari <[email protected]>
 */


#ifndef CXD2820R_H
#define CXD2820R_H

#include <linux/dvb/frontend.h>

#define CXD2820R_GPIO_D …
#define CXD2820R_GPIO_E …
#define CXD2820R_GPIO_O …
#define CXD2820R_GPIO_I …
#define CXD2820R_GPIO_L …
#define CXD2820R_GPIO_H …

#define CXD2820R_TS_SERIAL …
#define CXD2820R_TS_SERIAL_MSB …
#define CXD2820R_TS_PARALLEL …
#define CXD2820R_TS_PARALLEL_MSB …

/*
 * I2C address: 0x6c, 0x6d
 */

/**
 * struct cxd2820r_platform_data - Platform data for the cxd2820r driver
 * @ts_mode: TS mode.
 * @ts_clk_inv: TS clock inverted.
 * @if_agc_polarity: IF AGC polarity.
 * @spec_inv: Input spectrum inverted.
 * @gpio_chip_base: GPIO.
 * @get_dvb_frontend: Get DVB frontend.
 */
struct cxd2820r_platform_data { … };

/**
 * struct cxd2820r_config - configuration for cxd2020r demod
 *
 * @i2c_address: Demodulator I2C address. Driver determines DVB-C slave I2C
 *		 address automatically from master address.
 *		 Default: none, must set. Values: 0x6c, 0x6d.
 * @ts_mode:	TS output mode. Default: none, must set. Values: FIXME?
 * @ts_clock_inv: TS clock inverted. Default: 0. Values: 0, 1.
 * @if_agc_polarity: Default: 0. Values: 0, 1
 * @spec_inv:	Spectrum inversion. Default: 0. Values: 0, 1.
 */
struct cxd2820r_config { … };


#if IS_REACHABLE(CONFIG_DVB_CXD2820R)
/**
 * cxd2820r_attach - Attach a cxd2820r demod
 *
 * @config: pointer to &struct cxd2820r_config with demod configuration.
 * @i2c: i2c adapter to use.
 * @gpio_chip_base: if zero, disables GPIO setting. Otherwise, if
 *		    CONFIG_GPIOLIB is set dynamically allocate
 *		    gpio base; if is not set, use its value to
 *		    setup the GPIO pins.
 *
 * return: FE pointer on success, NULL on failure.
 */
extern struct dvb_frontend *cxd2820r_attach(
	const struct cxd2820r_config *config,
	struct i2c_adapter *i2c,
	int *gpio_chip_base
);
#else
static inline struct dvb_frontend *cxd2820r_attach(
	const struct cxd2820r_config *config,
	struct i2c_adapter *i2c,
	int *gpio_chip_base
)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}

#endif

#endif /* CXD2820R_H */