diff options
Diffstat (limited to 'drivers/media/dvb-frontends/zd1301_demod.h')
-rw-r--r-- | drivers/media/dvb-frontends/zd1301_demod.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/zd1301_demod.h b/drivers/media/dvb-frontends/zd1301_demod.h new file mode 100644 index 000000000000..ceb2e05e873c --- /dev/null +++ b/drivers/media/dvb-frontends/zd1301_demod.h @@ -0,0 +1,73 @@ +/* + * 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 "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 *); + +/** + * 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 *); + +#else + +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 */ |