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Based on 2 normalized pattern(s): 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 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 [no]_[pad]_[ctrl] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 176 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154040.652910950@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
128 lines
3 KiB
C
128 lines
3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Sony CXD2820R demodulator driver
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*
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* Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
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*/
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#ifndef CXD2820R_H
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#define CXD2820R_H
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#include <linux/dvb/frontend.h>
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#define CXD2820R_GPIO_D (0 << 0) /* disable */
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#define CXD2820R_GPIO_E (1 << 0) /* enable */
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#define CXD2820R_GPIO_O (0 << 1) /* output */
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#define CXD2820R_GPIO_I (1 << 1) /* input */
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#define CXD2820R_GPIO_L (0 << 2) /* output low */
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#define CXD2820R_GPIO_H (1 << 2) /* output high */
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#define CXD2820R_TS_SERIAL 0x08
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#define CXD2820R_TS_SERIAL_MSB 0x28
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#define CXD2820R_TS_PARALLEL 0x30
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#define CXD2820R_TS_PARALLEL_MSB 0x70
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/*
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* I2C address: 0x6c, 0x6d
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*/
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/**
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* struct cxd2820r_platform_data - Platform data for the cxd2820r driver
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* @ts_mode: TS mode.
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* @ts_clk_inv: TS clock inverted.
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* @if_agc_polarity: IF AGC polarity.
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* @spec_inv: Input spectrum inverted.
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* @gpio_chip_base: GPIO.
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* @get_dvb_frontend: Get DVB frontend.
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*/
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struct cxd2820r_platform_data {
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u8 ts_mode;
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bool ts_clk_inv;
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bool if_agc_polarity;
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bool spec_inv;
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int **gpio_chip_base;
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struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
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/* private: For legacy media attach wrapper. Do not set value. */
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bool attach_in_use;
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};
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/**
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* struct cxd2820r_config - configuration for cxd2020r demod
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*
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* @i2c_address: Demodulator I2C address. Driver determines DVB-C slave I2C
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* address automatically from master address.
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* Default: none, must set. Values: 0x6c, 0x6d.
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* @ts_mode: TS output mode. Default: none, must set. Values: FIXME?
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* @ts_clock_inv: TS clock inverted. Default: 0. Values: 0, 1.
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* @if_agc_polarity: Default: 0. Values: 0, 1
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* @spec_inv: Spectrum inversion. Default: 0. Values: 0, 1.
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*/
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struct cxd2820r_config {
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/* Demodulator I2C address.
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* Driver determines DVB-C slave I2C address automatically from master
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* address.
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* Default: none, must set
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* Values: 0x6c, 0x6d
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*/
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u8 i2c_address;
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/* TS output mode.
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* Default: none, must set.
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* Values:
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*/
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u8 ts_mode;
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/* TS clock inverted.
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* Default: 0
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* Values: 0, 1
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*/
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bool ts_clock_inv;
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/* IF AGC polarity.
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* Default: 0
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* Values: 0, 1
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*/
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bool if_agc_polarity;
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/* Spectrum inversion.
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* Default: 0
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* Values: 0, 1
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*/
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bool spec_inv;
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};
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#if IS_REACHABLE(CONFIG_DVB_CXD2820R)
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/**
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* Attach a cxd2820r demod
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*
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* @config: pointer to &struct cxd2820r_config with demod configuration.
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* @i2c: i2c adapter to use.
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* @gpio_chip_base: if zero, disables GPIO setting. Otherwise, if
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* CONFIG_GPIOLIB is set dynamically allocate
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* gpio base; if is not set, use its value to
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* setup the GPIO pins.
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*
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* return: FE pointer on success, NULL on failure.
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*/
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extern struct dvb_frontend *cxd2820r_attach(
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const struct cxd2820r_config *config,
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struct i2c_adapter *i2c,
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int *gpio_chip_base
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);
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#else
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static inline struct dvb_frontend *cxd2820r_attach(
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const struct cxd2820r_config *config,
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struct i2c_adapter *i2c,
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int *gpio_chip_base
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)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif
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#endif /* CXD2820R_H */
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