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
tda18271_attach(struct dvb_frontend * fe,u8 addr,struct i2c_adapter * i2c,struct tda18271_config * cfg)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__ */
140