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47d65372 AP |
1 | /* |
2 | * ZyDAS ZD1301 driver (demodulator) | |
3 | * | |
4 | * Copyright (C) 2015 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 | ||
17 | #ifndef ZD1301_DEMOD_H | |
18 | #define ZD1301_DEMOD_H | |
19 | ||
20 | #include <linux/platform_device.h> | |
21 | #include <linux/dvb/frontend.h> | |
22 | #include "dvb_frontend.h" | |
23 | ||
24 | /** | |
25 | * struct zd1301_demod_platform_data - Platform data for the zd1301_demod driver | |
26 | * @reg_priv: First argument of reg_read and reg_write callbacks. | |
27 | * @reg_read: Register read callback. | |
28 | * @reg_write: Register write callback. | |
29 | */ | |
47d65372 AP |
30 | struct zd1301_demod_platform_data { |
31 | void *reg_priv; | |
32 | int (*reg_read)(void *, u16, u8 *); | |
33 | int (*reg_write)(void *, u16, u8); | |
34 | }; | |
35 | ||
0d1270df | 36 | #if IS_REACHABLE(CONFIG_DVB_ZD1301_DEMOD) |
47d65372 AP |
37 | /** |
38 | * zd1301_demod_get_dvb_frontend() - Get pointer to DVB frontend | |
39 | * @pdev: Pointer to platform device | |
40 | * | |
41 | * Return: Pointer to DVB frontend which given platform device owns. | |
42 | */ | |
b95b0c98 | 43 | struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *pdev); |
47d65372 AP |
44 | |
45 | /** | |
46 | * zd1301_demod_get_i2c_adapter() - Get pointer to I2C adapter | |
47 | * @pdev: Pointer to platform device | |
48 | * | |
49 | * Return: Pointer to I2C adapter which given platform device owns. | |
50 | */ | |
b95b0c98 | 51 | struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *pdev); |
47d65372 | 52 | |
0d1270df AB |
53 | #else |
54 | ||
be9b53c8 MCC |
55 | /** |
56 | * zd1301_demod_get_dvb_frontend() - Attach a zd1301 frontend | |
57 | * @dev: Pointer to platform device | |
58 | * | |
59 | * Return: Pointer to %struct dvb_frontend or NULL if attach fails. | |
60 | */ | |
0d1270df AB |
61 | static inline struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *dev) |
62 | { | |
63 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | |
64 | ||
65 | return NULL; | |
66 | } | |
67 | static inline struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *dev) | |
68 | { | |
69 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); | |
70 | ||
71 | return NULL; | |
72 | } | |
73 | ||
74 | #endif | |
75 | ||
47d65372 | 76 | #endif /* ZD1301_DEMOD_H */ |