| /* |
| * 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 */ |