release/src-rt-6.x.4708/linux/linux-2.6.36/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
  25 #include "dmxdev.h"
  26 #include "dvbdev.h"
  27 #include "dvb_demux.h"
  28 #include "dvb_frontend.h"
  29 #include "dvb_net.h"
  30
  31 #include "mb86a16.h"
  32 #include "mantis_common.h"
  33 #include "mantis_ioc.h"
  34 #include "mantis_dvb.h"
  35 #include "mantis_vp1034.h"
  36 #include "mantis_reg.h"
  37
  38 struct mb86a16_config vp1034_mb86a16_config = {
  39         .demod_address  = 0x08,
  40         .set_voltage    = vp1034_set_voltage,
  41 };
  42
  43 #define MANTIS_MODEL_NAME       "VP-1034"
  44 #define MANTIS_DEV_TYPE         "DVB-S/DSS"
  45
  46 int vp1034_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
  47 {
  48         struct mantis_pci *mantis = fe->dvb->priv;
  49
  50         switch (voltage) {
  51         case SEC_VOLTAGE_13:
  52                 dprintk(MANTIS_ERROR, 1, "Polarization=[13V]");
  53                 gpio_set_bits(mantis, 13, 1);
  54                 gpio_set_bits(mantis, 14, 0);
  55                 break;
  56         case SEC_VOLTAGE_18:
  57                 dprintk(MANTIS_ERROR, 1, "Polarization=[18V]");
  58                 gpio_set_bits(mantis, 13, 1);
  59                 gpio_set_bits(mantis, 14, 1);
  60                 break;
  61         case SEC_VOLTAGE_OFF:
  62                 dprintk(MANTIS_ERROR, 1, "Frontend (dummy) POWERDOWN");
  63                 break;
  64         default:
  65                 dprintk(MANTIS_ERROR, 1, "Invalid = (%d)", (u32) voltage);
  66                 return -EINVAL;
  67         }
  68         mmwrite(0x00, MANTIS_GPIF_DOUT);
  69
  70         return 0;
  71 }
  72
  73 static int vp1034_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
  74 {
  75         struct i2c_adapter *adapter     = &mantis->adapter;
  76
  77         int err = 0;
  78
  79         err = mantis_frontend_power(mantis, POWER_ON);
  80         if (err == 0) {
  81                 mantis_frontend_soft_reset(mantis);
  82                 msleep(250);
  83
  84                 dprintk(MANTIS_ERROR, 1, "Probing for MB86A16 (DVB-S/DSS)");
  85                 fe = mb86a16_attach(&vp1034_mb86a16_config, adapter);
  86                 if (fe) {
  87                         dprintk(MANTIS_ERROR, 1,
  88                         "found MB86A16 DVB-S/DSS frontend @0x%02x",
  89                         vp1034_mb86a16_config.demod_address);
  90
  91                 } else {
  92                         return -1;
  93                 }
  94         } else {
  95                 dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
  96                         adapter->name,
  97                         err);
  98
  99                 return -EIO;
 100         }
 101         mantis->fe = fe;
 102         dprintk(MANTIS_ERROR, 1, "Done!");
 103
 104         return 0;
 105 }
 106
 107 struct mantis_hwconfig vp1034_config = {
 108         .model_name     = MANTIS_MODEL_NAME,
 109         .dev_type       = MANTIS_DEV_TYPE,
 110         .ts_size        = MANTIS_TS_204,
 111
 112         .baud_rate      = MANTIS_BAUD_9600,
 113         .parity         = MANTIS_PARITY_NONE,
 114         .bytes          = 0,
 115
 116         .frontend_init  = vp1034_frontend_init,
 117         .power          = GPIF_A12,
 118         .reset          = GPIF_A13,
 119 };