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/kconfig.h> 26 #include <linux/dvb/frontend.h> 27 28 #define CXD2820R_GPIO_D (0 << 0) /* disable */ 29 #define CXD2820R_GPIO_E (1 << 0) /* enable */ 30 #define CXD2820R_GPIO_O (0 << 1) /* output */ 31 #define CXD2820R_GPIO_I (1 << 1) /* input */ 32 #define CXD2820R_GPIO_L (0 << 2) /* output low */ 33 #define CXD2820R_GPIO_H (1 << 2) /* output high */ 34 35 #define CXD2820R_TS_SERIAL 0x08 36 #define CXD2820R_TS_SERIAL_MSB 0x28 37 #define CXD2820R_TS_PARALLEL 0x30 38 #define CXD2820R_TS_PARALLEL_MSB 0x70 39 40 struct cxd2820r_config { 41 /* Demodulator I2C address. 42 * Driver determines DVB-C slave I2C address automatically from master 43 * address. 44 * Default: none, must set 45 * Values: 0x6c, 0x6d 46 */ 47 u8 i2c_address; 48 49 /* TS output mode. 50 * Default: none, must set. 51 * Values: 52 */ 53 u8 ts_mode; 54 55 /* TS clock inverted. 56 * Default: 0 57 * Values: 0, 1 58 */ 59 bool ts_clock_inv; 60 61 /* IF AGC polarity. 62 * Default: 0 63 * Values: 0, 1 64 */ 65 bool if_agc_polarity; 66 67 /* Spectrum inversion. 68 * Default: 0 69 * Values: 0, 1 70 */ 71 bool spec_inv; 72 }; 73 74 75 #if IS_ENABLED(CONFIG_DVB_CXD2820R) 76 extern struct dvb_frontend *cxd2820r_attach( 77 const struct cxd2820r_config *config, 78 struct i2c_adapter *i2c, 79 int *gpio_chip_base 80 ); 81 #else 82 static inline struct dvb_frontend *cxd2820r_attach( 83 const struct cxd2820r_config *config, 84 struct i2c_adapter *i2c, 85 int *gpio_chip_base 86 ) 87 { 88 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 89 return NULL; 90 } 91 92 #endif 93 94 #endif /* CXD2820R_H */ 95