1 /* 2 Driver for Philips tda1004xh OFDM Frontend 3 4 (c) 2004 Andrew de Quincey 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 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 21 */ 22 23 #ifndef TDA1004X_H 24 #define TDA1004X_H 25 26 #include <linux/dvb/frontend.h> 27 #include <linux/firmware.h> 28 29 enum tda10046_xtal { 30 TDA10046_XTAL_4M, 31 TDA10046_XTAL_16M, 32 }; 33 34 enum tda10046_agc { 35 TDA10046_AGC_DEFAULT, /* original configuration */ 36 TDA10046_AGC_IFO_AUTO_NEG, /* IF AGC only, automatic, negtive */ 37 TDA10046_AGC_IFO_AUTO_POS, /* IF AGC only, automatic, positive */ 38 TDA10046_AGC_TDA827X, /* IF AGC only, special setup for tda827x */ 39 }; 40 41 /* Many (hybrid) boards use GPIO 1 and 3 42 GPIO1 analog - dvb switch 43 GPIO3 firmware eeprom address switch 44 */ 45 enum tda10046_gpio { 46 TDA10046_GPTRI = 0x00, /* All GPIOs tristate */ 47 TDA10046_GP00 = 0x40, /* GPIO3=0, GPIO1=0 */ 48 TDA10046_GP01 = 0x42, /* GPIO3=0, GPIO1=1 */ 49 TDA10046_GP10 = 0x48, /* GPIO3=1, GPIO1=0 */ 50 TDA10046_GP11 = 0x4a, /* GPIO3=1, GPIO1=1 */ 51 TDA10046_GP00_I = 0x80, /* GPIO3=0, GPIO1=0, invert in sleep mode*/ 52 TDA10046_GP01_I = 0x82, /* GPIO3=0, GPIO1=1, invert in sleep mode */ 53 TDA10046_GP10_I = 0x88, /* GPIO3=1, GPIO1=0, invert in sleep mode */ 54 TDA10046_GP11_I = 0x8a, /* GPIO3=1, GPIO1=1, invert in sleep mode */ 55 }; 56 57 enum tda10046_if { 58 TDA10046_FREQ_3617, /* original config, 36,166 MHZ */ 59 TDA10046_FREQ_3613, /* 36,13 MHZ */ 60 TDA10046_FREQ_045, /* low IF, 4.0, 4.5, or 5.0 MHZ */ 61 TDA10046_FREQ_052, /* low IF, 5.1667 MHZ for tda9889 */ 62 }; 63 64 enum tda10046_tsout { 65 TDA10046_TS_PARALLEL = 0x00, /* parallel transport stream, default */ 66 TDA10046_TS_SERIAL = 0x01, /* serial transport stream */ 67 }; 68 69 struct tda1004x_config 70 { 71 /* the demodulator's i2c address */ 72 u8 demod_address; 73 74 /* does the "inversion" need inverted? */ 75 u8 invert; 76 77 /* Does the OCLK signal need inverted? */ 78 u8 invert_oclk; 79 80 /* parallel or serial transport stream */ 81 enum tda10046_tsout ts_mode; 82 83 /* Xtal frequency, 4 or 16MHz*/ 84 enum tda10046_xtal xtal_freq; 85 86 /* IF frequency */ 87 enum tda10046_if if_freq; 88 89 /* AGC configuration */ 90 enum tda10046_agc agc_config; 91 92 /* setting of GPIO1 and 3 */ 93 enum tda10046_gpio gpio_config; 94 95 /* slave address and configuration of the tuner */ 96 u8 tuner_address; 97 u8 antenna_switch; 98 99 /* if the board uses another I2c Bridge (tda8290), its address */ 100 u8 i2c_gate; 101 102 /* request firmware for device */ 103 int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name); 104 }; 105 106 enum tda1004x_demod { 107 TDA1004X_DEMOD_TDA10045, 108 TDA1004X_DEMOD_TDA10046, 109 }; 110 111 struct tda1004x_state { 112 struct i2c_adapter* i2c; 113 const struct tda1004x_config* config; 114 struct dvb_frontend frontend; 115 116 /* private demod data */ 117 enum tda1004x_demod demod_type; 118 }; 119 120 #if IS_REACHABLE(CONFIG_DVB_TDA1004X) 121 extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, 122 struct i2c_adapter* i2c); 123 124 extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, 125 struct i2c_adapter* i2c); 126 #else 127 static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, 128 struct i2c_adapter* i2c) 129 { 130 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 131 return NULL; 132 } 133 static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, 134 struct i2c_adapter* i2c) 135 { 136 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 137 return NULL; 138 } 139 #endif // CONFIG_DVB_TDA1004X 140 141 static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) { 142 int r = 0; 143 u8 buf[] = {reg, val}; 144 if (fe->ops.write) 145 r = fe->ops.write(fe, buf, 2); 146 return r; 147 } 148 149 #endif // TDA1004X_H 150