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/*
* Sony CXD2820R demodulator driver
*
* Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef CXD2820R_H
#define CXD2820R_H
#include <linux/dvb/frontend.h>
#define CXD2820R_GPIO_D (0 << 0) /* disable */
#define CXD2820R_GPIO_E (1 << 0) /* enable */
#define CXD2820R_GPIO_O (0 << 1) /* output */
#define CXD2820R_GPIO_I (1 << 1) /* input */
#define CXD2820R_GPIO_L (0 << 2) /* output low */
#define CXD2820R_GPIO_H (1 << 2) /* output high */
#define CXD2820R_TS_SERIAL 0x08
#define CXD2820R_TS_SERIAL_MSB 0x28
#define CXD2820R_TS_PARALLEL 0x30
#define CXD2820R_TS_PARALLEL_MSB 0x70
/*
* 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 {
u8 ts_mode;
bool ts_clk_inv;
bool if_agc_polarity;
bool spec_inv;
int **gpio_chip_base;
struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
/* private: For legacy media attach wrapper. Do not set value. */
bool attach_in_use;
};
/**
* 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 {
/* Demodulator I2C address.
* Driver determines DVB-C slave I2C address automatically from master
* address.
* Default: none, must set
* Values: 0x6c, 0x6d
*/
u8 i2c_address;
/* TS output mode.
* Default: none, must set.
* Values:
*/
u8 ts_mode;
/* TS clock inverted.
* Default: 0
* Values: 0, 1
*/
bool ts_clock_inv;
/* IF AGC polarity.
* Default: 0
* Values: 0, 1
*/
bool if_agc_polarity;
/* Spectrum inversion.
* Default: 0
* Values: 0, 1
*/
bool spec_inv;
};
#if IS_REACHABLE(CONFIG_DVB_CXD2820R)
/**
* 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 */
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