drivers/media/pci/mantis/mantis_vp1033.c

   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
  26 static 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
  74 static 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
 106 static 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
 141 static 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
 152 static 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
 188 struct 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 };