diff options
Diffstat (limited to 'drivers/media/dvb-frontends/cxd2820r.h')
| -rw-r--r-- | drivers/media/dvb-frontends/cxd2820r.h | 72 |
1 files changed, 56 insertions, 16 deletions
diff --git a/drivers/media/dvb-frontends/cxd2820r.h b/drivers/media/dvb-frontends/cxd2820r.h index 82b3d93718f8..4aa6cf4fb913 100644 --- a/drivers/media/dvb-frontends/cxd2820r.h +++ b/drivers/media/dvb-frontends/cxd2820r.h @@ -1,28 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * 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/kconfig.h> #include <linux/dvb/frontend.h> #define CXD2820R_GPIO_D (0 << 0) /* disable */ @@ -37,6 +23,42 @@ #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 @@ -52,6 +74,12 @@ struct cxd2820r_config { */ u8 ts_mode; + /* TS clock inverted. + * Default: 0 + * Values: 0, 1 + */ + bool ts_clock_inv; + /* IF AGC polarity. * Default: 0 * Values: 0, 1 @@ -66,7 +94,19 @@ struct cxd2820r_config { }; -#if IS_ENABLED(CONFIG_DVB_CXD2820R) +#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, |