pci/mantis/mantis_vp1034.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003     Mantis VP-1034 driver
0004
0005     Copyright (C) Manu Abraham (abraham.manu@gmail.com)
0006
0007 */
0008
0009 #include <linux/signal.h>
0010 #include <linux/sched.h>
0011 #include <linux/interrupt.h>
0012 #include <asm/io.h>
0013
0014 #include <media/dmxdev.h>
0015 #include <media/dvbdev.h>
0016 #include <media/dvb_demux.h>
0017 #include <media/dvb_frontend.h>
0018 #include <media/dvb_net.h>
0019
0020 #include "mb86a16.h"
0021 #include "mantis_common.h"
0022 #include "mantis_ioc.h"
0023 #include "mantis_dvb.h"
0024 #include "mantis_vp1034.h"
0025 #include "mantis_reg.h"
0026
0027 static const struct mb86a16_config vp1034_mb86a16_config = {
0028     .demod_address  = 0x08,
0029     .set_voltage    = vp1034_set_voltage,
0030 };
0031
0032 #define MANTIS_MODEL_NAME   "VP-1034"
0033 #define MANTIS_DEV_TYPE     "DVB-S/DSS"
0034
0035 int vp1034_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage)
0036 {
0037     struct mantis_pci *mantis = fe->dvb->priv;
0038
0039     switch (voltage) {
0040     case SEC_VOLTAGE_13:
0041         dprintk(MANTIS_ERROR, 1, "Polarization=[13V]");
0042         mantis_gpio_set_bits(mantis, 13, 1);
0043         mantis_gpio_set_bits(mantis, 14, 0);
0044         break;
0045     case SEC_VOLTAGE_18:
0046         dprintk(MANTIS_ERROR, 1, "Polarization=[18V]");
0047         mantis_gpio_set_bits(mantis, 13, 1);
0048         mantis_gpio_set_bits(mantis, 14, 1);
0049         break;
0050     case SEC_VOLTAGE_OFF:
0051         dprintk(MANTIS_ERROR, 1, "Frontend (dummy) POWERDOWN");
0052         break;
0053     default:
0054         dprintk(MANTIS_ERROR, 1, "Invalid = (%d)", (u32) voltage);
0055         return -EINVAL;
0056     }
0057     mmwrite(0x00, MANTIS_GPIF_DOUT);
0058
0059     return 0;
0060 }
0061
0062 static int vp1034_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
0063 {
0064     struct i2c_adapter *adapter = &mantis->adapter;
0065
0066     int err = 0;
0067
0068     err = mantis_frontend_power(mantis, POWER_ON);
0069     if (err == 0) {
0070         mantis_frontend_soft_reset(mantis);
0071         msleep(250);
0072
0073         dprintk(MANTIS_ERROR, 1, "Probing for MB86A16 (DVB-S/DSS)");
0074         fe = dvb_attach(mb86a16_attach, &vp1034_mb86a16_config, adapter);
0075         if (fe) {
0076             dprintk(MANTIS_ERROR, 1,
0077             "found MB86A16 DVB-S/DSS frontend @0x%02x",
0078             vp1034_mb86a16_config.demod_address);
0079
0080         } else {
0081             return -1;
0082         }
0083     } else {
0084         dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
0085             adapter->name,
0086             err);
0087
0088         return -EIO;
0089     }
0090     mantis->fe = fe;
0091     dprintk(MANTIS_ERROR, 1, "Done!");
0092
0093     return 0;
0094 }
0095
0096 struct mantis_hwconfig vp1034_config = {
0097     .model_name = MANTIS_MODEL_NAME,
0098     .dev_type   = MANTIS_DEV_TYPE,
0099     .ts_size    = MANTIS_TS_204,
0100
0101     .baud_rate  = MANTIS_BAUD_9600,
0102     .parity     = MANTIS_PARITY_NONE,
0103     .bytes      = 0,
0104
0105     .frontend_init  = vp1034_frontend_init,
0106     .power      = GPIF_A12,
0107     .reset      = GPIF_A13,
0108 };