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
39 struct 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 /* GPIOs for all used modes.
67 * Default: none, disabled
68 * Values: <see above>
69 */
70 u8 gpio_dvbt[3];
71 u8 gpio_dvbt2[3];
72 u8 gpio_dvbc[3];
73 };
74
75
76 #if defined(CONFIG_DVB_CXD2820R) || \
77 (defined(CONFIG_DVB_CXD2820R_MODULE) && defined(MODULE))
78 extern struct dvb_frontend *cxd2820r_attach(
79 const struct cxd2820r_config *config,
80 struct i2c_adapter *i2c
81 );
82 #else
cxd2820r_attach(const struct cxd2820r_config * config,struct i2c_adapter * i2c)83 static inline struct dvb_frontend *cxd2820r_attach(
84 const struct cxd2820r_config *config,
85 struct i2c_adapter *i2c
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