1. 根目录:
2. drivers
3. media
4. dvb-frontends
5. af9013.h

/*
 * Afatech AF9013 demodulator driver
 *
 * Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
 * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
 *
 * Thanks to Afatech who kindly provided information.
 *
 *    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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#ifndef AF9013_H
#define AF9013_H

#include <linux/kconfig.h>
#include <linux/dvb/frontend.h>

/* AF9013/5 GPIOs (mostly guessed)
   demod#1-gpio#0 - set demod#2 i2c-addr for dual devices
   demod#1-gpio#1 - xtal setting (?)
   demod#1-gpio#3 - tuner#1
   demod#2-gpio#0 - tuner#2
   demod#2-gpio#1 - xtal setting (?)
*/

struct af9013_config {
	/*
	 * I2C address
	 */
	u8 i2c_addr;

	/*
	 * clock
	 * 20480000, 25000000, 28000000, 28800000
	 */
	u32 clock;

	/*
	 * tuner
	 */
#define AF9013_TUNER_MXL5003D      3 /* MaxLinear */
#define AF9013_TUNER_MXL5005D     13 /* MaxLinear */
#define AF9013_TUNER_MXL5005R     30 /* MaxLinear */
#define AF9013_TUNER_ENV77H11D5  129 /* Panasonic */
#define AF9013_TUNER_MT2060      130 /* Microtune */
#define AF9013_TUNER_MC44S803    133 /* Freescale */
#define AF9013_TUNER_QT1010      134 /* Quantek */
#define AF9013_TUNER_UNKNOWN     140 /* for can tuners ? */
#define AF9013_TUNER_MT2060_2    147 /* Microtune */
#define AF9013_TUNER_TDA18271    156 /* NXP */
#define AF9013_TUNER_QT1010A     162 /* Quantek */
#define AF9013_TUNER_MXL5007T    177 /* MaxLinear */
#define AF9013_TUNER_TDA18218    179 /* NXP */
	u8 tuner;

	/*
	 * IF frequency
	 */
	u32 if_frequency;

	/*
	 * TS settings
	 */
#define AF9013_TS_USB       0
#define AF9013_TS_PARALLEL  1
#define AF9013_TS_SERIAL    2
	u8 ts_mode:2;

	/*
	 * input spectrum inversion
	 */
	bool spec_inv;

	/*
	 * firmware API version
	 */
	u8 api_version[4];

	/*
	 * GPIOs
	 */
#define AF9013_GPIO_ON (1 << 0)
#define AF9013_GPIO_EN (1 << 1)
#define AF9013_GPIO_O  (1 << 2)
#define AF9013_GPIO_I  (1 << 3)
#define AF9013_GPIO_LO (AF9013_GPIO_ON|AF9013_GPIO_EN)
#define AF9013_GPIO_HI (AF9013_GPIO_ON|AF9013_GPIO_EN|AF9013_GPIO_O)
#define AF9013_GPIO_TUNER_ON  (AF9013_GPIO_ON|AF9013_GPIO_EN)
#define AF9013_GPIO_TUNER_OFF (AF9013_GPIO_ON|AF9013_GPIO_EN|AF9013_GPIO_O)
	u8 gpio[4];
};

#if IS_ENABLED(CONFIG_DVB_AF9013)
extern struct dvb_frontend *af9013_attach(const struct af9013_config *config,
	struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *af9013_attach(
const struct af9013_config *config, struct i2c_adapter *i2c)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif /* CONFIG_DVB_AF9013 */

#endif /* AF9013_H */