LXR linux/drivers/media/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
  27struct 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
  42struct 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_7;
  57        struct tda18271_std_map_item qam_8;
  58};
  59
  60enum tda18271_role {
  61        TDA18271_MASTER = 0,
  62        TDA18271_SLAVE,
  63};
  64
  65enum tda18271_i2c_gate {
  66        TDA18271_GATE_AUTO = 0,
  67        TDA18271_GATE_ANALOG,
  68        TDA18271_GATE_DIGITAL,
  69};
  70
  71enum tda18271_output_options {
  72        /* slave tuner output & loop thru & xtal oscillator always on */
  73        TDA18271_OUTPUT_LT_XT_ON = 0,
  74
  75        /* slave tuner output loop thru off */
  76        TDA18271_OUTPUT_LT_OFF = 1,
  77
  78        /* xtal oscillator off */
  79        TDA18271_OUTPUT_XT_OFF = 2,
  80};
  81
  82enum tda18271_small_i2c {
  83        TDA18271_39_BYTE_CHUNK_INIT = 0,
  84        TDA18271_16_BYTE_CHUNK_INIT = 16,
  85        TDA18271_08_BYTE_CHUNK_INIT = 8,
  86        TDA18271_03_BYTE_CHUNK_INIT = 3,
  87};
  88
  89struct tda18271_config {
  90        /* override default if freq / std settings (optional) */
  91        struct tda18271_std_map *std_map;
  92
  93        /* master / slave tuner: master uses main pll, slave uses cal pll */
  94        enum tda18271_role role;
  95
  96        /* use i2c gate provided by analog or digital demod */
  97        enum tda18271_i2c_gate gate;
  98
  99        /* output options that can be disabled */
 100        enum tda18271_output_options output_opt;
 101
 102        /* some i2c providers can't write all 39 registers at once */
 103        enum tda18271_small_i2c small_i2c;
 104
 105        /* force rf tracking filter calibration on startup */
 106        unsigned int rf_cal_on_startup:1;
 107
 108        /* prevent any register access during attach(),
 109         * delaying both IR & RF calibration until init()
 110         * module option 'cal' overrides this delay */
 111        unsigned int delay_cal:1;
 112
 113        /* interface to saa713x / tda829x */
 114        unsigned int config;
 115};
 116
 117#define TDA18271_CALLBACK_CMD_AGC_ENABLE 0
 118
 119enum tda18271_mode {
 120        TDA18271_ANALOG = 0,
 121        TDA18271_DIGITAL,
 122};
 123
 124#if IS_ENABLED(CONFIG_MEDIA_TUNER_TDA18271)
 125extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 126                                            struct i2c_adapter *i2c,
 127                                            struct tda18271_config *cfg);
 128#else
 129static inline struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe,
 130                                                   u8 addr,
 131                                                   struct i2c_adapter *i2c,
 132                                                   struct tda18271_config *cfg)
 133{
 134        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 135        return NULL;
 136}
 137#endif
 138
 139#endif /* __TDA18271_H__ */
 140