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53 lines
1.5 KiB
53 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Driver for Xceive XC4000 "QAM/8VSB single chip tuner" |
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* |
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* Copyright (c) 2007 Steven Toth <[email protected]> |
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*/ |
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#ifndef __XC4000_H__ |
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#define __XC4000_H__ |
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#include <linux/firmware.h> |
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struct dvb_frontend; |
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struct i2c_adapter; |
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struct xc4000_config { |
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u8 i2c_address; |
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/* if non-zero, power management is enabled by default */ |
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u8 default_pm; |
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/* value to be written to XREG_AMPLITUDE in DVB-T mode (0: no write) */ |
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u8 dvb_amplitude; |
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/* if non-zero, register 0x0E is set to filter analog TV video output */ |
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u8 set_smoothedcvbs; |
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/* IF for DVB-T */ |
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u32 if_khz; |
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}; |
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/* xc4000 callback command */ |
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#define XC4000_TUNER_RESET 0 |
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/* For each bridge framework, when it attaches either analog or digital, |
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* it has to store a reference back to its _core equivalent structure, |
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* so that it can service the hardware by steering gpio's etc. |
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* Each bridge implementation is different so cast devptr accordingly. |
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* The xc4000 driver cares not for this value, other than ensuring |
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* it's passed back to a bridge during tuner_callback(). |
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*/ |
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#if IS_REACHABLE(CONFIG_MEDIA_TUNER_XC4000) |
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extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, |
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struct i2c_adapter *i2c, |
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struct xc4000_config *cfg); |
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#else |
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static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, |
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struct i2c_adapter *i2c, |
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struct xc4000_config *cfg) |
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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 |
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#endif
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