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 <media/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_7;
  57         struct tda18271_std_map_item qam_8;
  58 };
  59
  60 enum tda18271_role {
  61         TDA18271_MASTER = 0,
  62         TDA18271_SLAVE,
  63 };
  64
  65 enum tda18271_i2c_gate {
  66         TDA18271_GATE_AUTO = 0,
  67         TDA18271_GATE_ANALOG,
  68         TDA18271_GATE_DIGITAL,
  69 };
  70
  71 enum 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
  82 enum 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
  89 struct 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
 119 enum tda18271_mode {
 120         TDA18271_ANALOG = 0,
 121         TDA18271_DIGITAL,
 122 };
 123
 124 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA18271)
 125 extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 126                                             struct i2c_adapter *i2c,
 127                                             struct tda18271_config *cfg);
 128 #else
 129 static 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__ */