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