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
 15struct 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
 30struct 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
 48enum tda18271_role {
 49	TDA18271_MASTER = 0,
 50	TDA18271_SLAVE,
 51};
 52
 53enum tda18271_i2c_gate {
 54	TDA18271_GATE_AUTO = 0,
 55	TDA18271_GATE_ANALOG,
 56	TDA18271_GATE_DIGITAL,
 57};
 58
 59enum 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
 70enum 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
 77struct 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
107enum tda18271_mode {
108	TDA18271_ANALOG = 0,
109	TDA18271_DIGITAL,
110};
111
112#if IS_REACHABLE(CONFIG_MEDIA_TUNER_TDA18271)
113extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
114					    struct i2c_adapter *i2c,
115					    struct tda18271_config *cfg);
116#else
117static 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__ */