85 строки
2.1 KiB
C
85 строки
2.1 KiB
C
/*
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Montage Technology TS2020 - Silicon Tuner driver
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Copyright (C) 2009-2012 Konstantin Dimitrov <kosio.dimitrov@gmail.com>
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Copyright (C) 2009-2012 TurboSight.com
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef TS2020_H
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#define TS2020_H
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#include <linux/kconfig.h>
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#include <linux/dvb/frontend.h>
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struct ts2020_config {
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u8 tuner_address;
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u32 frequency_div;
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/*
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* RF loop-through
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*/
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u8 loop_through:1;
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/*
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* clock output
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*/
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#define TS2020_CLK_OUT_DISABLED 0
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#define TS2020_CLK_OUT_ENABLED 1
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#define TS2020_CLK_OUT_ENABLED_XTALOUT 2
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u8 clk_out:2;
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/*
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* clock output divider
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* 1 - 31
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*/
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u8 clk_out_div:5;
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/*
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* pointer to DVB frontend
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*/
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struct dvb_frontend *fe;
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/*
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* driver private, do not set value
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*/
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u8 attach_in_use:1;
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/* Operation to be called by the ts2020 driver to get the value of the
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* AGC PWM tuner input as theoretically output by the demodulator.
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*/
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int (*get_agc_pwm)(struct dvb_frontend *fe, u8 *_agc_pwm);
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};
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/* Do not add new ts2020_attach() users! Use I2C bindings instead. */
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#if IS_REACHABLE(CONFIG_DVB_TS2020)
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extern struct dvb_frontend *ts2020_attach(
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struct dvb_frontend *fe,
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const struct ts2020_config *config,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend *ts2020_attach(
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struct dvb_frontend *fe,
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const struct ts2020_config *config,
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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 /* TS2020_H */
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