drivers/media/tuners/tda18271.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3     tda18271.h - header for the Philips / NXP TDA18271 silicon tuner
   4
   5     Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org>
   6
   7 */
   8
   9 #ifndef __TDA18271_H__
  10 #define __TDA18271_H__
  11
  12 #include <linux/i2c.h>
  13 #include <media/dvb_frontend.h>
  14
  15 struct tda18271_std_map_item {
  16         u16 if_freq;
  17
  18         /* EP3[4:3] */
  19         unsigned int agc_mode:2;
  20         /* EP3[2:0] */
  21         unsigned int std:3;
  22         /* EP4[7] */
  23         unsigned int fm_rfn:1;
  24         /* EP4[4:2] */
  25         unsigned int if_lvl:3;
  26         /* EB22[6:0] */
  27         unsigned int rfagc_top:7;
  28 };
  29
  30 struct tda18271_std_map {
  31         struct tda18271_std_map_item fm_radio;
  32         struct tda18271_std_map_item atv_b;
  33         struct tda18271_std_map_item atv_dk;
  34         struct tda18271_std_map_item atv_gh;
  35         struct tda18271_std_map_item atv_i;
  36         struct tda18271_std_map_item atv_l;
  37         struct tda18271_std_map_item atv_lc;
  38         struct tda18271_std_map_item atv_mn;
  39         struct tda18271_std_map_item atsc_6;
  40         struct tda18271_std_map_item dvbt_6;
  41         struct tda18271_std_map_item dvbt_7;
  42         struct tda18271_std_map_item dvbt_8;
  43         struct tda18271_std_map_item qam_6;
  44         struct tda18271_std_map_item qam_7;
  45         struct tda18271_std_map_item qam_8;
  46 };
  47
  48 enum tda18271_role {
  49         TDA18271_MASTER = 0,
  50         TDA18271_SLAVE,
  51 };
  52
  53 enum tda18271_i2c_gate {
  54         TDA18271_GATE_AUTO = 0,
  55         TDA18271_GATE_ANALOG,
  56         TDA18271_GATE_DIGITAL,
  57 };
  58
  59 enum tda18271_output_options {
  60         /* slave tuner output & loop through & xtal oscillator always on */
  61         TDA18271_OUTPUT_LT_XT_ON = 0,
  62
  63         /* slave tuner output loop through off */
  64         TDA18271_OUTPUT_LT_OFF = 1,
  65
  66         /* xtal oscillator off */
  67         TDA18271_OUTPUT_XT_OFF = 2,
  68 };
  69
  70 enum tda18271_small_i2c {
  71         TDA18271_39_BYTE_CHUNK_INIT = 0,
  72         TDA18271_16_BYTE_CHUNK_INIT = 16,
  73         TDA18271_08_BYTE_CHUNK_INIT = 8,
  74         TDA18271_03_BYTE_CHUNK_INIT = 3,
  75 };
  76
  77 struct tda18271_config {
  78         /* override default if freq / std settings (optional) */
  79         struct tda18271_std_map *std_map;
  80
  81         /* master / slave tuner: master uses main pll, slave uses cal pll */
  82         enum tda18271_role role;
  83
  84         /* use i2c gate provided by analog or digital demod */
  85         enum tda18271_i2c_gate gate;
  86
  87         /* output options that can be disabled */
  88         enum tda18271_output_options output_opt;
  89
  90         /* some i2c providers can't write all 39 registers at once */
  91         enum tda18271_small_i2c small_i2c;
  92
  93         /* force rf tracking filter calibration on startup */
  94         unsigned int rf_cal_on_startup:1;
  95
  96         /* prevent any register access during attach(),
  97          * delaying both IR & RF calibration until init()
  98          * module option 'cal' overrides this delay */
  99         unsigned int delay_cal:1;
 100
 101         /* interface to saa713x / tda829x */
 102         unsigned int config;
 103 };
 104
 105 #define TDA18271_CALLBACK_CMD_AGC_ENABLE 0
 106
 107 enum tda18271_mode {
 108         TDA18271_ANALOG = 0,
 109         TDA18271_DIGITAL,
 110 };
 111
 112 #if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA18271)
 113 extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
 114                                             struct i2c_adapter *i2c,
 115                                             struct tda18271_config *cfg);
 116 #else
 117 static inline struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe,
 118                                                    u8 addr,
 119                                                    struct i2c_adapter *i2c,
 120                                                    struct tda18271_config *cfg)
 121 {
 122         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 123         return NULL;
 124 }
 125 #endif
 126
 127 #endif /* __TDA18271_H__ */