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1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ | |
2 | /* | |
3 | * ZyDAS ZD1301 driver (demodulator) | |
4 | * | |
5 | * Copyright (C) 2015 Antti Palosaari <crope@iki.fi> | |
6 | */ | |
7 | ||
8 | #ifndef ZD1301_DEMOD_H | |
9 | #define ZD1301_DEMOD_H | |
10 | ||
11 | #include <linux/platform_device.h> | |
12 | #include <linux/dvb/frontend.h> | |
13 | #include <media/dvb_frontend.h> | |
14 | ||
15 | /** | |
16 | * struct zd1301_demod_platform_data - Platform data for the zd1301_demod driver | |
17 | * @reg_priv: First argument of reg_read and reg_write callbacks. | |
18 | * @reg_read: Register read callback. | |
19 | * @reg_write: Register write callback. | |
20 | */ | |
21 | struct zd1301_demod_platform_data { | |
22 | void *reg_priv; | |
23 | int (*reg_read)(void *, u16, u8 *); | |
24 | int (*reg_write)(void *, u16, u8); | |
25 | }; | |
26 | ||
27 | #if IS_REACHABLE(CONFIG_DVB_ZD1301_DEMOD) | |
28 | /** | |
29 | * zd1301_demod_get_dvb_frontend() - Get pointer to DVB frontend | |
30 | * @pdev: Pointer to platform device | |
31 | * | |
32 | * Return: Pointer to DVB frontend which given platform device owns. | |
33 | */ | |
34 | struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *pdev); | |
35 | ||
36 | /** | |
37 | * zd1301_demod_get_i2c_adapter() - Get pointer to I2C adapter | |
38 | * @pdev: Pointer to platform device | |
39 | * | |
40 | * Return: Pointer to I2C adapter which given platform device owns. | |
41 | */ | |
42 | struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *pdev); | |
43 | ||
44 | #else | |
45 | ||
46 | static inline struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *dev) | |
47 | { | |
48 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | |
49 | ||
50 | return NULL; | |
51 | } | |
52 | static inline struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *dev) | |
53 | { | |
54 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | |
55 | ||
56 | return NULL; | |
57 | } | |
58 | ||
59 | #endif | |
60 | ||
61 | #endif /* ZD1301_DEMOD_H */ |