45 строки
977 B
C
45 строки
977 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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VES1820 - Single Chip Cable Channel Receiver driver module
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Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
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*/
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#ifndef VES1820_H
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#define VES1820_H
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#include <linux/dvb/frontend.h>
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#define VES1820_SELAGC_PWM 0
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#define VES1820_SELAGC_SIGNAMPERR 1
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struct ves1820_config
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{
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/* the demodulator's i2c address */
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u8 demod_address;
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/* value of XIN to use */
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u32 xin;
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/* does inversion need inverted? */
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u8 invert:1;
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/* SELAGC control */
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u8 selagc:1;
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};
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#if IS_REACHABLE(CONFIG_DVB_VES1820)
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extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
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struct i2c_adapter* i2c, u8 pwm);
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#else
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static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
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struct i2c_adapter* i2c, u8 pwm)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif // CONFIG_DVB_VES1820
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#endif // VES1820_H
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