drivers/media/dvb/mantis/mantis_vp1034.c

   1 /*
   2         Mantis VP-1034 driver
   3
   4         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
   5
   6         This program is free software; you can redistribute it and/or modify
   7         it under the terms of the GNU General Public License as published by
   8         the Free Software Foundation; either version 2 of the License, or
   9         (at your option) any later version.
  10
  11         This program is distributed in the hope that it will be useful,
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14         GNU General Public License for more details.
  15
  16         You should have received a copy of the GNU General Public License
  17         along with this program; if not, write to the Free Software
  18         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include <linux/signal.h>
  22 #include <linux/sched.h>
  23 #include <linux/interrupt.h>
  24 #include <asm/io.h>
  25
  26 #include "dmxdev.h"
  27 #include "dvbdev.h"
  28 #include "dvb_demux.h"
  29 #include "dvb_frontend.h"
  30 #include "dvb_net.h"
  31
  32 #include "mb86a16.h"
  33 #include "mantis_common.h"
  34 #include "mantis_ioc.h"
  35 #include "mantis_dvb.h"
  36 #include "mantis_vp1034.h"
  37 #include "mantis_reg.h"
  38
  39 struct mb86a16_config vp1034_mb86a16_config = {
  40         .demod_address  = 0x08,
  41         .set_voltage    = vp1034_set_voltage,
  42 };
  43
  44 #define MANTIS_MODEL_NAME       "VP-1034"
  45 #define MANTIS_DEV_TYPE         "DVB-S/DSS"
  46
  47 int vp1034_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
  48 {
  49         struct mantis_pci *mantis = fe->dvb->priv;
  50
  51         switch (voltage) {
  52         case SEC_VOLTAGE_13:
  53                 dprintk(MANTIS_ERROR, 1, "Polarization=[13V]");
  54                 mantis_gpio_set_bits(mantis, 13, 1);
  55                 mantis_gpio_set_bits(mantis, 14, 0);
  56                 break;
  57         case SEC_VOLTAGE_18:
  58                 dprintk(MANTIS_ERROR, 1, "Polarization=[18V]");
  59                 mantis_gpio_set_bits(mantis, 13, 1);
  60                 mantis_gpio_set_bits(mantis, 14, 1);
  61                 break;
  62         case SEC_VOLTAGE_OFF:
  63                 dprintk(MANTIS_ERROR, 1, "Frontend (dummy) POWERDOWN");
  64                 break;
  65         default:
  66                 dprintk(MANTIS_ERROR, 1, "Invalid = (%d)", (u32) voltage);
  67                 return -EINVAL;
  68         }
  69         mmwrite(0x00, MANTIS_GPIF_DOUT);
  70
  71         return 0;
  72 }
  73
  74 static int vp1034_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
  75 {
  76         struct i2c_adapter *adapter     = &mantis->adapter;
  77
  78         int err = 0;
  79
  80         err = mantis_frontend_power(mantis, POWER_ON);
  81         if (err == 0) {
  82                 mantis_frontend_soft_reset(mantis);
  83                 msleep(250);
  84
  85                 dprintk(MANTIS_ERROR, 1, "Probing for MB86A16 (DVB-S/DSS)");
  86                 fe = dvb_attach(mb86a16_attach, &vp1034_mb86a16_config, adapter);
  87                 if (fe) {
  88                         dprintk(MANTIS_ERROR, 1,
  89                         "found MB86A16 DVB-S/DSS frontend @0x%02x",
  90                         vp1034_mb86a16_config.demod_address);
  91
  92                 } else {
  93                         return -1;
  94                 }
  95         } else {
  96                 dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
  97                         adapter->name,
  98                         err);
  99
 100                 return -EIO;
 101         }
 102         mantis->fe = fe;
 103         dprintk(MANTIS_ERROR, 1, "Done!");
 104
 105         return 0;
 106 }
 107
 108 struct mantis_hwconfig vp1034_config = {
 109         .model_name     = MANTIS_MODEL_NAME,
 110         .dev_type       = MANTIS_DEV_TYPE,
 111         .ts_size        = MANTIS_TS_204,
 112
 113         .baud_rate      = MANTIS_BAUD_9600,
 114         .parity         = MANTIS_PARITY_NONE,
 115         .bytes          = 0,
 116
 117         .frontend_init  = vp1034_frontend_init,
 118         .power          = GPIF_A12,
 119         .reset          = GPIF_A13,
 120 };