95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
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/*
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* Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator
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* LGS8913, LGS8GL5, LGS8G75
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* experimental support LGS8G42, LGS8G52
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*
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* Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com>
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* Copyright (C) 2008 Sirius International (Hong Kong) Limited
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* Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5)
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*
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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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*
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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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*
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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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*/
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#ifndef __LGS8GXX_H__
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#define __LGS8GXX_H__
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#include <linux/dvb/frontend.h>
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#include <linux/i2c.h>
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#define LGS8GXX_PROD_LGS8913 0
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#define LGS8GXX_PROD_LGS8GL5 1
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#define LGS8GXX_PROD_LGS8G42 3
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#define LGS8GXX_PROD_LGS8G52 4
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#define LGS8GXX_PROD_LGS8G54 5
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#define LGS8GXX_PROD_LGS8G75 6
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struct lgs8gxx_config {
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/* product type */
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u8 prod;
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/* the demodulator's i2c address */
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u8 demod_address;
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/* parallel or serial transport stream */
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u8 serial_ts;
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/* transport stream polarity*/
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u8 ts_clk_pol;
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/* transport stream clock gated by ts_valid */
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u8 ts_clk_gated;
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/* A/D Clock frequency */
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u32 if_clk_freq; /* in kHz */
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/* IF frequency */
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u32 if_freq; /* in kHz */
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/*Use External ADC*/
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u8 ext_adc;
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/*External ADC output two's complement*/
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u8 adc_signed;
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/*Sample IF data at falling edge of IF_CLK*/
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u8 if_neg_edge;
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/*IF use Negative center frequency*/
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u8 if_neg_center;
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/*8G75 internal ADC input range selection*/
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/*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/
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u8 adc_vpp;
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/* slave address and configuration of the tuner */
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u8 tuner_address;
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};
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#if IS_REACHABLE(CONFIG_DVB_LGS8GXX)
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extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
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struct i2c_adapter *i2c);
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#else
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static inline
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struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
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struct i2c_adapter *i2c) {
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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_LGS8GXX */
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#endif /* __LGS8GXX_H__ */
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