1/*
2 *    Support for AltoBeam GB20600 (a.k.a DMB-TH) demodulator
3 *    ATBM8830, ATBM8831
4 *
5 *    Copyright (C) 2009 David T.L. Wong <davidtlwong@gmail.com>
6 *
7 *    This program is free software; you can redistribute it and/or modify
8 *    it under the terms of the GNU General Public License as published by
9 *    the Free Software Foundation; either version 2 of the License, or
10 *    (at your option) any later version.
11 *
12 *    This program is distributed in the hope that it will be useful,
13 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
14 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#ifndef __ATBM8830_H__
23#define __ATBM8830_H__
24
25#include <linux/kconfig.h>
26#include <linux/dvb/frontend.h>
27#include <linux/i2c.h>
28
29#define ATBM8830_PROD_8830 0
30#define ATBM8830_PROD_8831 1
31
32struct atbm8830_config {
33
34	/* product type */
35	u8 prod;
36
37	/* the demodulator's i2c address */
38	u8 demod_address;
39
40	/* parallel or serial transport stream */
41	u8 serial_ts;
42
43	/* transport stream clock output only when receiving valid stream */
44	u8 ts_clk_gated;
45
46	/* Decoder sample TS data at rising edge of clock */
47	u8 ts_sampling_edge;
48
49	/* Oscillator clock frequency */
50	u32 osc_clk_freq; /* in kHz */
51
52	/* IF frequency */
53	u32 if_freq; /* in kHz */
54
55	/* Swap I/Q for zero IF */
56	u8 zif_swap_iq;
57
58	/* Tuner AGC settings */
59	u8 agc_min;
60	u8 agc_max;
61	u8 agc_hold_loop;
62};
63
64#if IS_ENABLED(CONFIG_DVB_ATBM8830)
65extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
66		struct i2c_adapter *i2c);
67#else
68static inline
69struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
70		struct i2c_adapter *i2c) {
71	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
72	return NULL;
73}
74#endif /* CONFIG_DVB_ATBM8830 */
75
76#endif /* __ATBM8830_H__ */
77