1/*
2 * Sony CXD2820R demodulator driver
3 *
4 * Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
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 along
17 *    with this program; if not, write to the Free Software Foundation, Inc.,
18 *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21
22#ifndef CXD2820R_H
23#define CXD2820R_H
24
25#include <linux/kconfig.h>
26#include <linux/dvb/frontend.h>
27
28#define CXD2820R_GPIO_D (0 << 0) /* disable */
29#define CXD2820R_GPIO_E (1 << 0) /* enable */
30#define CXD2820R_GPIO_O (0 << 1) /* output */
31#define CXD2820R_GPIO_I (1 << 1) /* input */
32#define CXD2820R_GPIO_L (0 << 2) /* output low */
33#define CXD2820R_GPIO_H (1 << 2) /* output high */
34
35#define CXD2820R_TS_SERIAL        0x08
36#define CXD2820R_TS_SERIAL_MSB    0x28
37#define CXD2820R_TS_PARALLEL      0x30
38#define CXD2820R_TS_PARALLEL_MSB  0x70
39
40struct cxd2820r_config {
41	/* Demodulator I2C address.
42	 * Driver determines DVB-C slave I2C address automatically from master
43	 * address.
44	 * Default: none, must set
45	 * Values: 0x6c, 0x6d
46	 */
47	u8 i2c_address;
48
49	/* TS output mode.
50	 * Default: none, must set.
51	 * Values:
52	 */
53	u8 ts_mode;
54
55	/* TS clock inverted.
56	 * Default: 0
57	 * Values: 0, 1
58	 */
59	bool ts_clock_inv;
60
61	/* IF AGC polarity.
62	 * Default: 0
63	 * Values: 0, 1
64	 */
65	bool if_agc_polarity;
66
67	/* Spectrum inversion.
68	 * Default: 0
69	 * Values: 0, 1
70	 */
71	bool spec_inv;
72};
73
74
75#if IS_ENABLED(CONFIG_DVB_CXD2820R)
76extern struct dvb_frontend *cxd2820r_attach(
77	const struct cxd2820r_config *config,
78	struct i2c_adapter *i2c,
79	int *gpio_chip_base
80);
81#else
82static inline struct dvb_frontend *cxd2820r_attach(
83	const struct cxd2820r_config *config,
84	struct i2c_adapter *i2c,
85	int *gpio_chip_base
86)
87{
88	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
89	return NULL;
90}
91
92#endif
93
94#endif /* CXD2820R_H */
95