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kernel/linux-rt-4.4.41/drivers/media/pci/mantis/mantis_vp1034.c 2.98 KB
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  /*
  	Mantis VP-1034 driver
  
  	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
  
  	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.
  */
  
  #include <linux/signal.h>
  #include <linux/sched.h>
  #include <linux/interrupt.h>
  #include <asm/io.h>
  
  #include "dmxdev.h"
  #include "dvbdev.h"
  #include "dvb_demux.h"
  #include "dvb_frontend.h"
  #include "dvb_net.h"
  
  #include "mb86a16.h"
  #include "mantis_common.h"
  #include "mantis_ioc.h"
  #include "mantis_dvb.h"
  #include "mantis_vp1034.h"
  #include "mantis_reg.h"
  
  static struct mb86a16_config vp1034_mb86a16_config = {
  	.demod_address	= 0x08,
  	.set_voltage	= vp1034_set_voltage,
  };
  
  #define MANTIS_MODEL_NAME	"VP-1034"
  #define MANTIS_DEV_TYPE		"DVB-S/DSS"
  
  int vp1034_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage)
  {
  	struct mantis_pci *mantis = fe->dvb->priv;
  
  	switch (voltage) {
  	case SEC_VOLTAGE_13:
  		dprintk(MANTIS_ERROR, 1, "Polarization=[13V]");
  		mantis_gpio_set_bits(mantis, 13, 1);
  		mantis_gpio_set_bits(mantis, 14, 0);
  		break;
  	case SEC_VOLTAGE_18:
  		dprintk(MANTIS_ERROR, 1, "Polarization=[18V]");
  		mantis_gpio_set_bits(mantis, 13, 1);
  		mantis_gpio_set_bits(mantis, 14, 1);
  		break;
  	case SEC_VOLTAGE_OFF:
  		dprintk(MANTIS_ERROR, 1, "Frontend (dummy) POWERDOWN");
  		break;
  	default:
  		dprintk(MANTIS_ERROR, 1, "Invalid = (%d)", (u32) voltage);
  		return -EINVAL;
  	}
  	mmwrite(0x00, MANTIS_GPIF_DOUT);
  
  	return 0;
  }
  
  static int vp1034_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
  {
  	struct i2c_adapter *adapter	= &mantis->adapter;
  
  	int err = 0;
  
  	err = mantis_frontend_power(mantis, POWER_ON);
  	if (err == 0) {
  		mantis_frontend_soft_reset(mantis);
  		msleep(250);
  
  		dprintk(MANTIS_ERROR, 1, "Probing for MB86A16 (DVB-S/DSS)");
  		fe = dvb_attach(mb86a16_attach, &vp1034_mb86a16_config, adapter);
  		if (fe) {
  			dprintk(MANTIS_ERROR, 1,
  			"found MB86A16 DVB-S/DSS frontend @0x%02x",
  			vp1034_mb86a16_config.demod_address);
  
  		} else {
  			return -1;
  		}
  	} else {
  		dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
  			adapter->name,
  			err);
  
  		return -EIO;
  	}
  	mantis->fe = fe;
  	dprintk(MANTIS_ERROR, 1, "Done!");
  
  	return 0;
  }
  
  struct mantis_hwconfig vp1034_config = {
  	.model_name	= MANTIS_MODEL_NAME,
  	.dev_type	= MANTIS_DEV_TYPE,
  	.ts_size	= MANTIS_TS_204,
  
  	.baud_rate	= MANTIS_BAUD_9600,
  	.parity		= MANTIS_PARITY_NONE,
  	.bytes		= 0,
  
  	.frontend_init	= vp1034_frontend_init,
  	.power		= GPIF_A12,
  	.reset		= GPIF_A13,
  };