drivers/media/common/tuners/tda18271.h

   1 /*
   2     tda18271.h - header for the Philips / NXP TDA18271 silicon tuner
   3
   4     Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org>
   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
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #ifndef __TDA18271_H__
  22 #define __TDA18271_H__
  23
  24 #include <linux/i2c.h>
  25 #include "dvb_frontend.h"
  26
  27 struct tda18271_std_map_item {
  28         u16 if_freq;
  29
  30         /* EP3[4:3] */
  31         unsigned int agc_mode:2;
  32         /* EP3[2:0] */
  33         unsigned int std:3;
  34         /* EP4[7] */
  35         unsigned int fm_rfn:1;
  36         /* EP4[4:2] */
  37         unsigned int if_lvl:3;
  38         /* EB22[6:0] */
  39         unsigned int rfagc_top:7;
  40 };
  41
  42 struct tda18271_std_map {
  43         struct tda18271_std_map_item fm_radio;
  44         struct tda18271_std_map_item atv_b;
  45         struct tda18271_std_map_item atv_dk;
  46         struct tda18271_std_map_item atv_gh;
  47         struct tda18271_std_map_item atv_i;
  48         struct tda18271_std_map_item atv_l;
  49         struct tda18271_std_map_item atv_lc;
  50         struct tda18271_std_map_item atv_mn;
  51         struct tda18271_std_map_item atsc_6;
  52         struct tda18271_std_map_item dvbt_6;
  53         struct tda18271_std_map_item dvbt_7;
  54         struct tda18271_std_map_item dvbt_8;
  55         struct tda18271_std_map_item qam_6;
  56         struct tda18271_std_map_item qam_8;
  57 };
  58
  59 enum tda18271_role {
  60         TDA18271_MASTER = 0,
  61         TDA18271_SLAVE,
  62 };
  63
  64 enum tda18271_i2c_gate {
  65         TDA18271_GATE_AUTO = 0,
  66         TDA18271_GATE_ANALOG,
  67         TDA18271_GATE_DIGITAL,
  68 };
  69
  70 enum tda18271_output_options {
  71         /* slave tuner output & loop thru & xtal oscillator always on */
  72         TDA18271_OUTPUT_LT_XT_ON = 0,
  73
  74         /* slave tuner output loop thru off */
  75         TDA18271_OUTPUT_LT_OFF = 1,
  76
  77         /* xtal oscillator off */
  78         TDA18271_OUTPUT_XT_OFF = 2,
  79 };
  80
  81 enum tda18271_small_i2c {
  82         TDA18271_39_BYTE_CHUNK_INIT = 0,
  83         TDA18271_16_BYTE_CHUNK_INIT = 16,
  84         TDA18271_08_BYTE_CHUNK_INIT = 8,
  85         TDA18271_03_BYTE_CHUNK_INIT = 3,
  86 };
  87
  88 struct tda18271_config {
  89         /* override default if freq / std settings (optional) */
  90         struct tda18271_std_map *std_map;
  91
  92         /* master / slave tuner: master uses main pll, slave uses cal pll */
  93         enum tda18271_role role;
  94
  95         /* use i2c gate provided by analog or digital demod */
  96         enum tda18271_i2c_gate gate;
  97
  98         /* output options that can be disabled */
  99         enum tda18271_output_options output_opt;
 100
 101         /* some i2c providers can't write all 39 registers at once */
 102         enum tda18271_small_i2c small_i2c;
 103
 104         /* force rf tracking filter calibration on startup */
 105         unsigned int rf_cal_on_startup:1;
 106
 107         /* interface to saa713x / tda829x */
 108         unsigned int config;
 109 };
 110
 111 #define TDA18271_CALLBACK_CMD_AGC_ENABLE 0
 112
 113 enum tda18271_mode {
 114         TDA18271_ANALOG = 0,
 115         TDA18271_DIGITAL,
 116 };
 117
 118 #if defined(CONFIG_MEDIA_TUNER_TDA18271) || (defined(CONFIG_MEDIA_TUNER_TDA18271_MODULE) && defined(MODULE))
 119 extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 120                                             struct i2c_adapter *i2c,
 121                                             struct tda18271_config *cfg);
 122 #else
 123 static inline struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe,
 124                                                    u8 addr,
 125                                                    struct i2c_adapter *i2c,
 126                                                    struct tda18271_config *cfg)
 127 {
 128         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 129         return NULL;
 130 }
 131 #endif
 132
 133 #endif /* __TDA18271_H__ */