tda18271.h revision 149ef72deeba57078216c9fa678baff392295853 
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_8;
57};
58
59enum tda18271_role {
60	TDA18271_MASTER = 0,
61	TDA18271_SLAVE,
62};
63
64enum tda18271_i2c_gate {
65	TDA18271_GATE_AUTO = 0,
66	TDA18271_GATE_ANALOG,
67	TDA18271_GATE_DIGITAL,
68};
69
70struct tda18271_config {
71	/* override default if freq / std settings (optional) */
72	struct tda18271_std_map *std_map;
73
74	/* master / slave tuner: master uses main pll, slave uses cal pll */
75	enum tda18271_role role;
76
77	/* use i2c gate provided by analog or digital demod */
78	enum tda18271_i2c_gate gate;
79
80	/* some i2c providers cant write all 39 registers at once */
81	unsigned int small_i2c:1;
82};
83
84#if defined(CONFIG_MEDIA_TUNER_TDA18271) || (defined(CONFIG_MEDIA_TUNER_TDA18271_MODULE) && defined(MODULE))
85extern struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,
86					    struct i2c_adapter *i2c,
87					    struct tda18271_config *cfg);
88#else
89static inline struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe,
90						   u8 addr,
91						   struct i2c_adapter *i2c,
92						   struct tda18271_config *cfg)
93{
94	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
95	return NULL;
96}
97#endif
98
99#endif /* __TDA18271_H__ */
100