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Linux kernel mirror (for testing)
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kernel
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linux
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/dvb/frontend.h>
26
27#define CXD2820R_GPIO_D (0 << 0) /* disable */
28#define CXD2820R_GPIO_E (1 << 0) /* enable */
29#define CXD2820R_GPIO_O (0 << 1) /* output */
30#define CXD2820R_GPIO_I (1 << 1) /* input */
31#define CXD2820R_GPIO_L (0 << 2) /* output low */
32#define CXD2820R_GPIO_H (1 << 2) /* output high */
33
34#define CXD2820R_TS_SERIAL 0x08
35#define CXD2820R_TS_SERIAL_MSB 0x28
36#define CXD2820R_TS_PARALLEL 0x30
37#define CXD2820R_TS_PARALLEL_MSB 0x70
38
39struct cxd2820r_config {
40 /* Demodulator I2C address.
41 * Driver determines DVB-C slave I2C address automatically from master
42 * address.
43 * Default: none, must set
44 * Values: 0x6c, 0x6d
45 */
46 u8 i2c_address;
47
48 /* TS output mode.
49 * Default: none, must set.
50 * Values:
51 */
52 u8 ts_mode;
53
54 /* IF AGC polarity.
55 * Default: 0
56 * Values: 0, 1
57 */
58 bool if_agc_polarity;
59
60 /* Spectrum inversion.
61 * Default: 0
62 * Values: 0, 1
63 */
64 bool spec_inv;
65};
66
67
68#if defined(CONFIG_DVB_CXD2820R) || \
69 (defined(CONFIG_DVB_CXD2820R_MODULE) && defined(MODULE))
70extern struct dvb_frontend *cxd2820r_attach(
71 const struct cxd2820r_config *config,
72 struct i2c_adapter *i2c,
73 int *gpio_chip_base
74);
75#else
76static inline struct dvb_frontend *cxd2820r_attach(
77 const struct cxd2820r_config *config,
78 struct i2c_adapter *i2c,
79 int *gpio_chip_base
80)
81{
82 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
83 return NULL;
84}
85
86#endif
87
88#endif /* CXD2820R_H */