/* * ZyDAS ZD1301 driver (demodulator) * * Copyright (C) 2015 Antti Palosaari <crope@iki.fi> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef ZD1301_DEMOD_H #define ZD1301_DEMOD_H #include <linux/platform_device.h> #include <linux/dvb/frontend.h> #include <media/dvb_frontend.h> /** * struct zd1301_demod_platform_data - Platform data for the zd1301_demod driver * @reg_priv: First argument of reg_read and reg_write callbacks. * @reg_read: Register read callback. * @reg_write: Register write callback. */ struct zd1301_demod_platform_data { void *reg_priv; int (*reg_read)(void *, u16, u8 *); int (*reg_write)(void *, u16, u8); }; #if IS_REACHABLE(CONFIG_DVB_ZD1301_DEMOD) /** * zd1301_demod_get_dvb_frontend() - Get pointer to DVB frontend * @pdev: Pointer to platform device * * Return: Pointer to DVB frontend which given platform device owns. */ struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *pdev); /** * zd1301_demod_get_i2c_adapter() - Get pointer to I2C adapter * @pdev: Pointer to platform device * * Return: Pointer to I2C adapter which given platform device owns. */ struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *pdev); #else /** * zd1301_demod_get_dvb_frontend() - Attach a zd1301 frontend * @dev: Pointer to platform device * * Return: Pointer to %struct dvb_frontend or NULL if attach fails. */ static inline struct dvb_frontend *zd1301_demod_get_dvb_frontend(struct platform_device *dev) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } static inline struct i2c_adapter *zd1301_demod_get_i2c_adapter(struct platform_device *dev) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } #endif #endif /* ZD1301_DEMOD_H */