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f5d82a75e6
This patch adds driver for tc90522 demodulator chips. The chip contains 4 demod modules that run in parallel and are independently controllable via separate I2C addresses. Two of the modules are for ISDB-T and the rest for ISDB-S. It is used in earthsoft pt3 cards. Note that this driver does not init the chip, because the initilization sequence / register setting is not disclosed. Thus, the driver assumes that the chips are initilized externally by its parent board driver before fe->ops->init() are called. Earthsoft PT3 PCIe card, for example, contains the init sequence in its private memory and provides a command to trigger the sequence. Signed-off-by: Akihiro Tsukada <tskd08@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
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* Toshiba TC90522 Demodulator
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*
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* Copyright (C) 2014 Akihiro Tsukada <tskd08@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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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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/*
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* The demod has 4 input (2xISDB-T and 2xISDB-S),
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* and provides independent sub modules for each input.
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* As the sub modules work in parallel and have the separate i2c addr's,
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* this driver treats each sub module as one demod device.
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*/
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#ifndef TC90522_H
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#define TC90522_H
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#include <linux/i2c.h>
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#include "dvb_frontend.h"
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/* I2C device types */
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#define TC90522_I2C_DEV_SAT "tc90522sat"
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#define TC90522_I2C_DEV_TER "tc90522ter"
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struct tc90522_config {
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/* [OUT] frontend returned by driver */
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struct dvb_frontend *fe;
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/* [OUT] tuner I2C adapter returned by driver */
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struct i2c_adapter *tuner_i2c;
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};
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#endif /* TC90522_H */
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