From cae78ed599c348999a318ace0fcc3ff0277c8fa4 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Tue, 13 Jan 2009 04:40:36 -0300 Subject: V4L/DVB (10925): add support for LG Electronics LGDT3305 ATSC/QAM-B Demodulator Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/lgdt3305.h | 85 ++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 drivers/media/dvb/frontends/lgdt3305.h (limited to 'drivers/media/dvb/frontends/lgdt3305.h') diff --git a/drivers/media/dvb/frontends/lgdt3305.h b/drivers/media/dvb/frontends/lgdt3305.h new file mode 100644 index 000000000000..4fa6e52d1fe8 --- /dev/null +++ b/drivers/media/dvb/frontends/lgdt3305.h @@ -0,0 +1,85 @@ +/* + * Support for LGDT3305 - VSB/QAM + * + * Copyright (C) 2008, 2009 Michael Krufky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _LGDT3305_H_ +#define _LGDT3305_H_ + +#include +#include "dvb_frontend.h" + + +enum lgdt3305_mpeg_mode { + LGDT3305_MPEG_PARALLEL = 0, + LGDT3305_MPEG_SERIAL = 1, +}; + +enum lgdt3305_tp_clock_edge { + LGDT3305_TPCLK_RISING_EDGE = 0, + LGDT3305_TPCLK_FALLING_EDGE = 1, +}; + +enum lgdt3305_tp_valid_polarity { + LGDT3305_TP_VALID_LOW = 0, + LGDT3305_TP_VALID_HIGH = 1, +}; + +struct lgdt3305_config { + u8 i2c_addr; + + /* user defined IF frequency in KHz */ + u16 qam_if_khz; + u16 vsb_if_khz; + + /* AGC Power reference - defaults are used if left unset */ + u16 usref_8vsb; /* default: 0x32c4 */ + u16 usref_qam64; /* default: 0x5400 */ + u16 usref_qam256; /* default: 0x2a80 */ + + /* disable i2c repeater - 0:repeater enabled 1:repeater disabled */ + int deny_i2c_rptr:1; + + /* spectral inversion - 0:disabled 1:enabled */ + int spectral_inversion:1; + + /* use RF AGC loop - 0:disabled 1:enabled */ + int rf_agc_loop:1; + + enum lgdt3305_mpeg_mode mpeg_mode; + enum lgdt3305_tp_clock_edge tpclk_edge; + enum lgdt3305_tp_valid_polarity tpvalid_polarity; +}; + +#if defined(CONFIG_DVB_LGDT3305) || (defined(CONFIG_DVB_LGDT3305_MODULE) && \ + defined(MODULE)) +extern +struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config, + struct i2c_adapter *i2c_adap); +#else +static inline +struct dvb_frontend *lgdt3305_attach(const struct lgdt3305_config *config, + struct i2c_adapter *i2c_adap) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif /* CONFIG_DVB_LGDT3305 */ + +#endif /* _LGDT3305_H_ */ -- cgit v1.2.3