linux/drivers/media/pci/mantis/mantis_vp1033.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3        Mantis VP-1033 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
  13#include <media/dmxdev.h>
  14#include <media/dvbdev.h>
  15#include <media/dvb_demux.h>
  16#include <media/dvb_frontend.h>
  17#include <media/dvb_net.h>
  18
  19#include "stv0299.h"
  20#include "mantis_common.h"
  21#include "mantis_ioc.h"
  22#include "mantis_dvb.h"
  23#include "mantis_vp1033.h"
  24#include "mantis_reg.h"
  25
  26static u8 lgtdqcs001f_inittab[] = {
  27        0x01, 0x15,
  28        0x02, 0x30,
  29        0x03, 0x00,
  30        0x04, 0x2a,
  31        0x05, 0x85,
  32        0x06, 0x02,
  33        0x07, 0x00,
  34        0x08, 0x00,
  35        0x0c, 0x01,
  36        0x0d, 0x81,
  37        0x0e, 0x44,
  38        0x0f, 0x94,
  39        0x10, 0x3c,
  40        0x11, 0x84,
  41        0x12, 0xb9,
  42        0x13, 0xb5,
  43        0x14, 0x4f,
  44        0x15, 0xc9,
  45        0x16, 0x80,
  46        0x17, 0x36,
  47        0x18, 0xfb,
  48        0x19, 0xcf,
  49        0x1a, 0xbc,
  50        0x1c, 0x2b,
  51        0x1d, 0x27,
  52        0x1e, 0x00,
  53        0x1f, 0x0b,
  54        0x20, 0xa1,
  55        0x21, 0x60,
  56        0x22, 0x00,
  57        0x23, 0x00,
  58        0x28, 0x00,
  59        0x29, 0x28,
  60        0x2a, 0x14,
  61        0x2b, 0x0f,
  62        0x2c, 0x09,
  63        0x2d, 0x05,
  64        0x31, 0x1f,
  65        0x32, 0x19,
  66        0x33, 0xfc,
  67        0x34, 0x13,
  68        0xff, 0xff,
  69};
  70
  71#define MANTIS_MODEL_NAME       "VP-1033"
  72#define MANTIS_DEV_TYPE         "DVB-S/DSS"
  73
  74static int lgtdqcs001f_tuner_set(struct dvb_frontend *fe)
  75{
  76        struct dtv_frontend_properties *p = &fe->dtv_property_cache;
  77        struct mantis_pci *mantis       = fe->dvb->priv;
  78        struct i2c_adapter *adapter     = &mantis->adapter;
  79
  80        u8 buf[4];
  81        u32 div;
  82
  83
  84        struct i2c_msg msg = {.addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf)};
  85
  86        div = p->frequency / 250;
  87
  88        buf[0] = (div >> 8) & 0x7f;
  89        buf[1] =  div & 0xff;
  90        buf[2] =  0x83;
  91        buf[3] =  0xc0;
  92
  93        if (p->frequency < 1531000)
  94                buf[3] |= 0x04;
  95        else
  96                buf[3] &= ~0x04;
  97        if (i2c_transfer(adapter, &msg, 1) < 0) {
  98                dprintk(MANTIS_ERROR, 1, "Write: I2C Transfer failed");
  99                return -EIO;
 100        }
 101        msleep_interruptible(100);
 102
 103        return 0;
 104}
 105
 106static int lgtdqcs001f_set_symbol_rate(struct dvb_frontend *fe,
 107                                       u32 srate, u32 ratio)
 108{
 109        u8 aclk = 0;
 110        u8 bclk = 0;
 111
 112        if (srate < 1500000) {
 113                aclk = 0xb7;
 114                bclk = 0x47;
 115        } else if (srate < 3000000) {
 116                aclk = 0xb7;
 117                bclk = 0x4b;
 118        } else if (srate < 7000000) {
 119                aclk = 0xb7;
 120                bclk = 0x4f;
 121        } else if (srate < 14000000) {
 122                aclk = 0xb7;
 123                bclk = 0x53;
 124        } else if (srate < 30000000) {
 125                aclk = 0xb6;
 126                bclk = 0x53;
 127        } else if (srate < 45000000) {
 128                aclk = 0xb4;
 129                bclk = 0x51;
 130        }
 131        stv0299_writereg(fe, 0x13, aclk);
 132        stv0299_writereg(fe, 0x14, bclk);
 133
 134        stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
 135        stv0299_writereg(fe, 0x20, (ratio >>  8) & 0xff);
 136        stv0299_writereg(fe, 0x21,  ratio & 0xf0);
 137
 138        return 0;
 139}
 140
 141static struct stv0299_config lgtdqcs001f_config = {
 142        .demod_address          = 0x68,
 143        .inittab                = lgtdqcs001f_inittab,
 144        .mclk                   = 88000000UL,
 145        .invert                 = 0,
 146        .skip_reinit            = 0,
 147        .volt13_op0_op1         = STV0299_VOLT13_OP0,
 148        .min_delay_ms           = 100,
 149        .set_symbol_rate        = lgtdqcs001f_set_symbol_rate,
 150};
 151
 152static int vp1033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
 153{
 154        struct i2c_adapter *adapter     = &mantis->adapter;
 155
 156        int err = 0;
 157
 158        err = mantis_frontend_power(mantis, POWER_ON);
 159        if (err == 0) {
 160                mantis_frontend_soft_reset(mantis);
 161                msleep(250);
 162
 163                dprintk(MANTIS_ERROR, 1, "Probing for STV0299 (DVB-S)");
 164                fe = dvb_attach(stv0299_attach, &lgtdqcs001f_config, adapter);
 165
 166                if (fe) {
 167                        fe->ops.tuner_ops.set_params = lgtdqcs001f_tuner_set;
 168                        dprintk(MANTIS_ERROR, 1, "found STV0299 DVB-S frontend @ 0x%02x",
 169                                lgtdqcs001f_config.demod_address);
 170
 171                        dprintk(MANTIS_ERROR, 1, "Mantis DVB-S STV0299 frontend attach success");
 172                } else {
 173                        return -1;
 174                }
 175        } else {
 176                dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
 177                        adapter->name,
 178                        err);
 179
 180                return -EIO;
 181        }
 182        mantis->fe = fe;
 183        dprintk(MANTIS_ERROR, 1, "Done!");
 184
 185        return 0;
 186}
 187
 188struct mantis_hwconfig vp1033_config = {
 189        .model_name             = MANTIS_MODEL_NAME,
 190        .dev_type               = MANTIS_DEV_TYPE,
 191        .ts_size                = MANTIS_TS_204,
 192
 193        .baud_rate              = MANTIS_BAUD_9600,
 194        .parity                 = MANTIS_PARITY_NONE,
 195        .bytes                  = 0,
 196
 197        .frontend_init          = vp1033_frontend_init,
 198        .power                  = GPIF_A12,
 199        .reset                  = GPIF_A13,
 200};
 201