1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Fujitsu mb86a20s driver
4 *
5 * Copyright (C) 2010 Mauro Carvalho Chehab
6 */
7
8 #ifndef MB86A20S_H
9 #define MB86A20S_H
10
11 #include <linux/dvb/frontend.h>
12
13 /**
14 * struct mb86a20s_config - Define the per-device attributes of the frontend
15 *
16 * @fclk: Clock frequency. If zero, assumes the default
17 * (32.57142 Mhz)
18 * @demod_address: the demodulator's i2c address
19 * @is_serial: if true, TS is serial. Otherwise, TS is parallel
20 */
21 struct mb86a20s_config {
22 u32 fclk;
23 u8 demod_address;
24 bool is_serial;
25 };
26
27 #if IS_REACHABLE(CONFIG_DVB_MB86A20S)
28 /**
29 * Attach a mb86a20s demod
30 *
31 * @config: pointer to &struct mb86a20s_config with demod configuration.
32 * @i2c: i2c adapter to use.
33 *
34 * return: FE pointer on success, NULL on failure.
35 */
36 extern struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config,
37 struct i2c_adapter *i2c);
38
39 #else
40 static inline struct dvb_frontend *mb86a20s_attach(
41 const struct mb86a20s_config *config, struct i2c_adapter *i2c)
42 {
43 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
44 return NULL;
45 }
46 #endif
47
48 #endif /* MB86A20S */