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53 lines
1.4 KiB
53 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner |
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* |
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* Copyright (C) 2010 Malcolm Priestley |
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*/ |
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#ifndef DVB_IX2505V_H |
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#define DVB_IX2505V_H |
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#include <linux/i2c.h> |
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#include <media/dvb_frontend.h> |
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/** |
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* struct ix2505v_config - ix2505 attachment configuration |
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* |
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* @tuner_address: tuner address |
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* @tuner_gain: Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB |
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* @tuner_chargepump: Charge pump output +/- 0=120 1=260 2=555 3=1200(default) |
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* @min_delay_ms: delay after tune |
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* @tuner_write_only: disables reads |
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*/ |
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struct ix2505v_config { |
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u8 tuner_address; |
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u8 tuner_gain; |
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u8 tuner_chargepump; |
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int min_delay_ms; |
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u8 tuner_write_only; |
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}; |
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#if IS_REACHABLE(CONFIG_DVB_IX2505V) |
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/** |
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* ix2505v_attach - Attach a ix2505v tuner to the supplied frontend structure. |
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* |
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* @fe: Frontend to attach to. |
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* @config: pointer to &struct ix2505v_config |
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* @i2c: pointer to &struct i2c_adapter. |
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* |
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* return: FE pointer on success, NULL on failure. |
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*/ |
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extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, |
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const struct ix2505v_config *config, struct i2c_adapter *i2c); |
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#else |
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static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, |
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const struct ix2505v_config *config, struct i2c_adapter *i2c) |
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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 /* DVB_IX2505V_H */
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