LXR linux/drivers/media/pci/mantis/mantis

   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
  27static 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
  35int 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
  62static 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
  96struct 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};
 109