drivers/media/pci/mantis/mantis_vp1034.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3         Mantis VP-1034 driver
   4
   5         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
   6
   7 */
   8
   9 #include <linux/signal.h>
  10 #include <linux/sched.h>
  11 #include <linux/interrupt.h>
  12 #include <asm/io.h>
  13
  14 #include <media/dmxdev.h>
  15 #include <media/dvbdev.h>
  16 #include <media/dvb_demux.h>
  17 #include <media/dvb_frontend.h>
  18 #include <media/dvb_net.h>
  19
  20 #include "mb86a16.h"
  21 #include "mantis_common.h"
  22 #include "mantis_ioc.h"
  23 #include "mantis_dvb.h"
  24 #include "mantis_vp1034.h"
  25 #include "mantis_reg.h"
  26
  27 static const struct mb86a16_config vp1034_mb86a16_config = {
  28         .demod_address  = 0x08,
  29         .set_voltage    = vp1034_set_voltage,
  30 };
  31
  32 #define MANTIS_MODEL_NAME       "VP-1034"
  33 #define MANTIS_DEV_TYPE         "DVB-S/DSS"
  34
  35 int vp1034_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage)
  36 {
  37         struct mantis_pci *mantis = fe->dvb->priv;
  38
  39         switch (voltage) {
  40         case SEC_VOLTAGE_13:
  41                 dprintk(MANTIS_ERROR, 1, "Polarization=[13V]");
  42                 mantis_gpio_set_bits(mantis, 13, 1);
  43                 mantis_gpio_set_bits(mantis, 14, 0);
  44                 break;
  45         case SEC_VOLTAGE_18:
  46                 dprintk(MANTIS_ERROR, 1, "Polarization=[18V]");
  47                 mantis_gpio_set_bits(mantis, 13, 1);
  48                 mantis_gpio_set_bits(mantis, 14, 1);
  49                 break;
  50         case SEC_VOLTAGE_OFF:
  51                 dprintk(MANTIS_ERROR, 1, "Frontend (dummy) POWERDOWN");
  52                 break;
  53         default:
  54                 dprintk(MANTIS_ERROR, 1, "Invalid = (%d)", (u32) voltage);
  55                 return -EINVAL;
  56         }
  57         mmwrite(0x00, MANTIS_GPIF_DOUT);
  58
  59         return 0;
  60 }
  61
  62 static int vp1034_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
  63 {
  64         struct i2c_adapter *adapter     = &mantis->adapter;
  65
  66         int err = 0;
  67
  68         err = mantis_frontend_power(mantis, POWER_ON);
  69         if (err == 0) {
  70                 mantis_frontend_soft_reset(mantis);
  71                 msleep(250);
  72
  73                 dprintk(MANTIS_ERROR, 1, "Probing for MB86A16 (DVB-S/DSS)");
  74                 fe = dvb_attach(mb86a16_attach, &vp1034_mb86a16_config, adapter);
  75                 if (fe) {
  76                         dprintk(MANTIS_ERROR, 1,
  77                         "found MB86A16 DVB-S/DSS frontend @0x%02x",
  78                         vp1034_mb86a16_config.demod_address);
  79
  80                 } else {
  81                         return -1;
  82                 }
  83         } else {
  84                 dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
  85                         adapter->name,
  86                         err);
  87
  88                 return -EIO;
  89         }
  90         mantis->fe = fe;
  91         dprintk(MANTIS_ERROR, 1, "Done!");
  92
  93         return 0;
  94 }
  95
  96 struct mantis_hwconfig vp1034_config = {
  97         .model_name     = MANTIS_MODEL_NAME,
  98         .dev_type       = MANTIS_DEV_TYPE,
  99         .ts_size        = MANTIS_TS_204,
 100
 101         .baud_rate      = MANTIS_BAUD_9600,
 102         .parity         = MANTIS_PARITY_NONE,
 103         .bytes          = 0,
 104
 105         .frontend_init  = vp1034_frontend_init,
 106         .power          = GPIF_A12,
 107         .reset          = GPIF_A13,
 108 };