projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 81ae953b OE |
1 | /* |
| 2 | * tdhd1.h - ALPS TDHD1-204A tuner support | |
| 3 | * | |
| 4 | * Copyright (C) 2008 Oliver Endriss <o.endriss@gmx.de> | |
| 5 | * | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU General Public License | |
| 9 | * as published by the Free Software Foundation; either version 2 | |
| 10 | * of the License, or (at your option) any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 20 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
| 21 | * | |
| 22 | * | |
| 23 | * The project's page is at http://www.linuxtv.org | |
| 24 | */ | |
| 25 | ||
| 26 | #ifndef TDHD1_H | |
| 27 | #define TDHD1_H | |
| 28 | ||
| 29 | #include "tda1004x.h" | |
| 30 | ||
| 31 | static struct tda1004x_config alps_tdhd1_204a_config = { | |
| 32 | .demod_address = 0x8, | |
| 33 | .invert = 1, | |
| 34 | .invert_oclk = 0, | |
| 35 | .xtal_freq = TDA10046_XTAL_4M, | |
| 36 | .agc_config = TDA10046_AGC_DEFAULT, | |
| 37 | .if_freq = TDA10046_FREQ_3617, | |
| 38 | }; | |
| 39 | ||
| 40 | static int alps_tdhd1_204a_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params) | |
| 41 | { | |
| 42 | struct i2c_adapter *i2c = fe->tuner_priv; | |
| 43 | u8 data[4]; | |
| 44 | struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) }; | |
| 45 | u32 div; | |
| 46 | ||
| 47 | div = (params->frequency + 36166666) / 166666; | |
| 48 | ||
| 49 | data[0] = (div >> 8) & 0x7f; | |
| 50 | data[1] = div & 0xff; | |
| 51 | data[2] = 0x85; | |
| 52 | ||
| 53 | if (params->frequency >= 174000000 && params->frequency <= 230000000) | |
| 54 | data[3] = 0x02; | |
| 55 | else if (params->frequency >= 470000000 && params->frequency <= 823000000) | |
| 56 | data[3] = 0x0C; | |
| 57 | else if (params->frequency > 823000000 && params->frequency <= 862000000) | |
| 58 | data[3] = 0x8C; | |
| 59 | else | |
| 60 | return -EINVAL; | |
| 61 | ||
| 62 | if (fe->ops.i2c_gate_ctrl) | |
| 63 | fe->ops.i2c_gate_ctrl(fe, 1); | |
| 64 | if (i2c_transfer(i2c, &msg, 1) != 1) | |
| 65 | return -EIO; | |
| 66 | ||
| 67 | return 0; | |
| 68 | } | |
| 69 | ||
| 70 | #endif /* TDHD1_H */ |