zd1301_demod.h (1630B)
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 */ 21struct 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 */ 34struct 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 */ 42struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *pdev); 43 44#else 45 46static 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} 52static 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 */