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 struct cxd2820r_config { 40 /* Demodulator I2C address. 41 * Driver determines DVB-C slave I2C address automatically from master 42 * address. 43 * Default: none, must set 44 * Values: 0x6c, 0x6d 45 */ 46 u8 i2c_address; 47 48 /* TS output mode. 49 * Default: none, must set. 50 * Values: 51 */ 52 u8 ts_mode; 53 54 /* IF AGC polarity. 55 * Default: 0 56 * Values: 0, 1 57 */ 58 bool if_agc_polarity; 59 60 /* Spectrum inversion. 61 * Default: 0 62 * Values: 0, 1 63 */ 64 bool spec_inv; 65 }; 66 67 68 #if defined(CONFIG_DVB_CXD2820R) || \ 69 (defined(CONFIG_DVB_CXD2820R_MODULE) && defined(MODULE)) 70 extern struct dvb_frontend *cxd2820r_attach( 71 const struct cxd2820r_config *config, 72 struct i2c_adapter *i2c, 73 int *gpio_chip_base 74 ); 75 #else 76 static inline struct dvb_frontend *cxd2820r_attach( 77 const struct cxd2820r_config *config, 78 struct i2c_adapter *i2c, 79 int *gpio_chip_base 80 ) 81 { 82 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 83 return NULL; 84 } 85 86 #endif 87 88 #endif /* CXD2820R_H */ 89