1 /* 2 * Sony CXD2820R demodulator driver 3 * 4 * Copyright (C) 2010 Antti Palosaari <crope@iki.fi> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 19 */ 20 21 22 #ifndef CXD2820R_H 23 #define CXD2820R_H 24 25 #include <linux/dvb/frontend.h> 26 27 #define CXD2820R_GPIO_D (0 << 0) /* disable */ 28 #define CXD2820R_GPIO_E (1 << 0) /* enable */ 29 #define CXD2820R_GPIO_O (0 << 1) /* output */ 30 #define CXD2820R_GPIO_I (1 << 1) /* input */ 31 #define CXD2820R_GPIO_L (0 << 2) /* output low */ 32 #define CXD2820R_GPIO_H (1 << 2) /* output high */ 33 34 #define CXD2820R_TS_SERIAL 0x08 35 #define CXD2820R_TS_SERIAL_MSB 0x28 36 #define CXD2820R_TS_PARALLEL 0x30 37 #define CXD2820R_TS_PARALLEL_MSB 0x70 38 39 /* 40 * I2C address: 0x6c, 0x6d 41 */ 42 43 /** 44 * struct cxd2820r_platform_data - Platform data for the cxd2820r driver 45 * @ts_mode: TS mode. 46 * @ts_clk_inv: TS clock inverted. 47 * @if_agc_polarity: IF AGC polarity. 48 * @spec_inv: Input spectrum inverted. 49 * @gpio_chip_base: GPIO. 50 * @get_dvb_frontend: Get DVB frontend. 51 */ 52 53 struct cxd2820r_platform_data { 54 u8 ts_mode; 55 bool ts_clk_inv; 56 bool if_agc_polarity; 57 bool spec_inv; 58 int **gpio_chip_base; 59 60 struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *); 61 /* private: For legacy media attach wrapper. Do not set value. */ 62 bool attach_in_use; 63 }; 64 65 struct cxd2820r_config { 66 /* Demodulator I2C address. 67 * Driver determines DVB-C slave I2C address automatically from master 68 * address. 69 * Default: none, must set 70 * Values: 0x6c, 0x6d 71 */ 72 u8 i2c_address; 73 74 /* TS output mode. 75 * Default: none, must set. 76 * Values: 77 */ 78 u8 ts_mode; 79 80 /* TS clock inverted. 81 * Default: 0 82 * Values: 0, 1 83 */ 84 bool ts_clock_inv; 85 86 /* IF AGC polarity. 87 * Default: 0 88 * Values: 0, 1 89 */ 90 bool if_agc_polarity; 91 92 /* Spectrum inversion. 93 * Default: 0 94 * Values: 0, 1 95 */ 96 bool spec_inv; 97 }; 98 99 100 #if IS_REACHABLE(CONFIG_DVB_CXD2820R) 101 extern struct dvb_frontend *cxd2820r_attach( 102 const struct cxd2820r_config *config, 103 struct i2c_adapter *i2c, 104 int *gpio_chip_base 105 ); 106 #else 107 static inline struct dvb_frontend *cxd2820r_attach( 108 const struct cxd2820r_config *config, 109 struct i2c_adapter *i2c, 110 int *gpio_chip_base 111 ) 112 { 113 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 114 return NULL; 115 } 116 117 #endif 118 119 #endif /* CXD2820R_H */ 120