| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * ZyDAS ZD1301 driver (demodulator) |
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| 4 | * |
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| 5 | * Copyright (C) 2015 Antti Palosaari <crope@iki.fi> |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef ZD1301_DEMOD_H |
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| 9 | #define ZD1301_DEMOD_H |
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| 10 | |
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| 11 | #include <linux/platform_device.h> |
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| 12 | #include <linux/dvb/frontend.h> |
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| 13 | #include <media/dvb_frontend.h> |
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| 14 | |
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| 15 | /** |
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| 16 | * struct zd1301_demod_platform_data - Platform data for the zd1301_demod driver |
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| 17 | * @reg_priv: First argument of reg_read and reg_write callbacks. |
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| 18 | * @reg_read: Register read callback. |
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| 19 | * @reg_write: Register write callback. |
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| 20 | */ |
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| 21 | struct zd1301_demod_platform_data { |
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| 22 | void *reg_priv; |
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| 23 | int (*reg_read)(void *, u16, u8 *); |
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| 24 | int (*reg_write)(void *, u16, u8); |
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| 25 | }; |
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| 26 | |
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| 27 | #if IS_REACHABLE(CONFIG_DVB_ZD1301_DEMOD) |
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| 28 | /** |
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| 29 | * zd1301_demod_get_dvb_frontend() - Get pointer to DVB frontend |
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| 30 | * @pdev: Pointer to platform device |
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| 31 | * |
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| 32 | * Return: Pointer to DVB frontend which given platform device owns. |
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| 33 | */ |
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| 34 | struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *pdev); |
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| 35 | |
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| 36 | /** |
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| 37 | * zd1301_demod_get_i2c_adapter() - Get pointer to I2C adapter |
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| 38 | * @pdev: Pointer to platform device |
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| 39 | * |
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| 40 | * Return: Pointer to I2C adapter which given platform device owns. |
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| 41 | */ |
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| 42 | struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *pdev); |
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| 43 | |
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| 44 | #else |
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| 45 | |
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| 46 | static inline struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *dev) |
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| 47 | { |
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| 48 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
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| 49 | |
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| 50 | return NULL; |
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| 51 | } |
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| 52 | static inline struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *dev) |
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| 53 | { |
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| 54 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n" , __func__); |
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| 55 | |
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| 56 | return NULL; |
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| 57 | } |
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| 58 | |
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| 59 | #endif |
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| 60 | |
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| 61 | #endif /* ZD1301_DEMOD_H */ |
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| 62 | |
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