1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 *    Support for AltoBeam GB20600 (a.k.a DMB-TH) demodulator
4 *    ATBM8830, ATBM8831
5 *
6 *    Copyright (C) 2009 David T.L. Wong <davidtlwong@gmail.com>
7 */
8
9#ifndef __ATBM8830_H__
10#define __ATBM8830_H__
11
12#include <linux/dvb/frontend.h>
13#include <linux/i2c.h>
14
15#define ATBM8830_PROD_8830 0
16#define ATBM8830_PROD_8831 1
17
18struct atbm8830_config {
19
20	/* product type */
21	u8 prod;
22
23	/* the demodulator's i2c address */
24	u8 demod_address;
25
26	/* parallel or serial transport stream */
27	u8 serial_ts;
28
29	/* transport stream clock output only when receiving valid stream */
30	u8 ts_clk_gated;
31
32	/* Decoder sample TS data at rising edge of clock */
33	u8 ts_sampling_edge;
34
35	/* Oscillator clock frequency */
36	u32 osc_clk_freq; /* in kHz */
37
38	/* IF frequency */
39	u32 if_freq; /* in kHz */
40
41	/* Swap I/Q for zero IF */
42	u8 zif_swap_iq;
43
44	/* Tuner AGC settings */
45	u8 agc_min;
46	u8 agc_max;
47	u8 agc_hold_loop;
48};
49
50#if IS_REACHABLE(CONFIG_DVB_ATBM8830)
51extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
52		struct i2c_adapter *i2c);
53#else
54static inline
55struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
56		struct i2c_adapter *i2c) {
57	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
58	return NULL;
59}
60#endif /* CONFIG_DVB_ATBM8830 */
61
62#endif /* __ATBM8830_H__ */
63