tda1004x.h revision f03cbea36ab9412dcea58e953be4933b36c9b7be 
1  /*
2     Driver for Philips tda1004xh OFDM Frontend
3
4     (c) 2004 Andrew de Quincey
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
15     GNU General Public License for more details.
16
17     You should have received a copy of the GNU General Public License
18     along with this program; if not, write to the Free Software
19     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21   */
22
23#ifndef TDA1004X_H
24#define TDA1004X_H
25
26#include <linux/dvb/frontend.h>
27#include <linux/firmware.h>
28
29enum tda10046_xtal {
30	TDA10046_XTAL_4M,
31	TDA10046_XTAL_16M,
32};
33
34enum tda10046_agc {
35	TDA10046_AGC_DEFAULT,		/* original configuration */
36	TDA10046_AGC_IFO_AUTO_NEG,	/* IF AGC only, automatic, negtive */
37	TDA10046_AGC_IFO_AUTO_POS,	/* IF AGC only, automatic, positive */
38	TDA10046_AGC_TDA827X,	    /* IF AGC only, special setup for tda827x */
39};
40
41enum tda10046_if {
42	TDA10046_FREQ_3617,		/* original config, 36,166 MHZ */
43	TDA10046_FREQ_3613,		/* 36,13 MHZ */
44	TDA10046_FREQ_045,		/* low IF, 4.0, 4.5, or 5.0 MHZ */
45	TDA10046_FREQ_052,		/* low IF, 5.1667 MHZ for tda9889 */
46};
47
48struct tda1004x_config
49{
50	/* the demodulator's i2c address */
51	u8 demod_address;
52
53	/* does the "inversion" need inverted? */
54	u8 invert;
55
56	/* Does the OCLK signal need inverted? */
57	u8 invert_oclk;
58
59	/* Xtal frequency, 4 or 16MHz*/
60	enum tda10046_xtal xtal_freq;
61
62	/* IF frequency */
63	enum tda10046_if if_freq;
64
65	/* AGC configuration */
66	enum tda10046_agc agc_config;
67
68	/* PLL maintenance */
69	int (*pll_init)(struct dvb_frontend* fe);
70	void (*pll_sleep)(struct dvb_frontend* fe);
71	int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
72
73	/* request firmware for device */
74	/* set this to NULL if the card has a firmware EEPROM */
75	int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
76};
77
78extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
79					    struct i2c_adapter* i2c);
80
81extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
82					    struct i2c_adapter* i2c);
83
84extern int tda1004x_write_byte(struct dvb_frontend* fe, int reg, int data);
85
86#endif // TDA1004X_H
87