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 
40 struct 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)
76 extern struct dvb_frontend *cxd2820r_attach(
77 	const struct cxd2820r_config *config,
78 	struct i2c_adapter *i2c,
79 	int *gpio_chip_base
80 );
81 #else
82 static 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