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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/drivers/media/dvb/mantis/mantis_vp1034.c
15112 views
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/*

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	Mantis VP-1034 driver

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	Copyright (C) Manu Abraham ([email protected])

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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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#include <linux/signal.h>

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#include <linux/sched.h>

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#include <linux/interrupt.h>

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#include "dmxdev.h"

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#include "dvbdev.h"

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#include "dvb_demux.h"

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#include "dvb_frontend.h"

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#include "dvb_net.h"

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#include "mb86a16.h"

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#include "mantis_common.h"

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#include "mantis_ioc.h"

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#include "mantis_dvb.h"

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#include "mantis_vp1034.h"

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#include "mantis_reg.h"

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struct mb86a16_config vp1034_mb86a16_config = {

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	.demod_address	= 0x08,

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	.set_voltage	= vp1034_set_voltage,

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};

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#define MANTIS_MODEL_NAME	"VP-1034"

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#define MANTIS_DEV_TYPE		"DVB-S/DSS"

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int vp1034_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)

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{

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	struct mantis_pci *mantis = fe->dvb->priv;

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	switch (voltage) {

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	case SEC_VOLTAGE_13:

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		dprintk(MANTIS_ERROR, 1, "Polarization=[13V]");

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		mantis_gpio_set_bits(mantis, 13, 1);

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		mantis_gpio_set_bits(mantis, 14, 0);

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		break;

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	case SEC_VOLTAGE_18:

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		dprintk(MANTIS_ERROR, 1, "Polarization=[18V]");

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		mantis_gpio_set_bits(mantis, 13, 1);

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		mantis_gpio_set_bits(mantis, 14, 1);

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		break;

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	case SEC_VOLTAGE_OFF:

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		dprintk(MANTIS_ERROR, 1, "Frontend (dummy) POWERDOWN");

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		break;

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	default:

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		dprintk(MANTIS_ERROR, 1, "Invalid = (%d)", (u32) voltage);

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		return -EINVAL;

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	}

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	mmwrite(0x00, MANTIS_GPIF_DOUT);

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	return 0;

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}

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static int vp1034_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)

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{

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	struct i2c_adapter *adapter	= &mantis->adapter;

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	int err = 0;

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	err = mantis_frontend_power(mantis, POWER_ON);

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	if (err == 0) {

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		mantis_frontend_soft_reset(mantis);

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		msleep(250);

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		dprintk(MANTIS_ERROR, 1, "Probing for MB86A16 (DVB-S/DSS)");

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		fe = dvb_attach(mb86a16_attach, &vp1034_mb86a16_config, adapter);

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		if (fe) {

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			dprintk(MANTIS_ERROR, 1,

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			"found MB86A16 DVB-S/DSS frontend @0x%02x",

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			vp1034_mb86a16_config.demod_address);

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		} else {

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			return -1;

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		}

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	} else {

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		dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",

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			adapter->name,

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			err);

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		return -EIO;

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	}

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	mantis->fe = fe;

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	dprintk(MANTIS_ERROR, 1, "Done!");

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	return 0;

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}

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struct mantis_hwconfig vp1034_config = {

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	.model_name	= MANTIS_MODEL_NAME,

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	.dev_type	= MANTIS_DEV_TYPE,

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	.ts_size	= MANTIS_TS_204,

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	.baud_rate	= MANTIS_BAUD_9600,

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	.parity		= MANTIS_PARITY_NONE,

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	.bytes		= 0,

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	.frontend_init	= vp1034_frontend_init,

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	.power		= GPIF_A12,

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	.reset		= GPIF_A13,

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};

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