drivers/media/pci/ddbridge/ddbridge-max.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * ddbridge-max.c: Digital Devices bridge MAX card support
   4  *
   5  * Copyright (C) 2010-2017 Digital Devices GmbH
   6  *                         Ralph Metzler <rjkm@metzlerbros.de>
   7  *                         Marcus Metzler <mocm@metzlerbros.de>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 only, as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/init.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/delay.h>
  23 #include <linux/slab.h>
  24 #include <linux/poll.h>
  25 #include <linux/io.h>
  26 #include <linux/pci.h>
  27 #include <linux/pci_ids.h>
  28 #include <linux/timer.h>
  29 #include <linux/i2c.h>
  30 #include <linux/swab.h>
  31 #include <linux/vmalloc.h>
  32
  33 #include "ddbridge.h"
  34 #include "ddbridge-regs.h"
  35 #include "ddbridge-io.h"
  36 #include "ddbridge-mci.h"
  37
  38 #include "ddbridge-max.h"
  39 #include "mxl5xx.h"
  40
  41 /******************************************************************************/
  42
  43 /* MaxS4/8 related modparams */
  44 static int fmode;
  45 module_param(fmode, int, 0444);
  46 MODULE_PARM_DESC(fmode, "frontend emulation mode");
  47
  48 static int fmode_sat = -1;
  49 module_param(fmode_sat, int, 0444);
  50 MODULE_PARM_DESC(fmode_sat, "set frontend emulation mode sat");
  51
  52 static int old_quattro;
  53 module_param(old_quattro, int, 0444);
  54 MODULE_PARM_DESC(old_quattro, "old quattro LNB input order ");
  55
  56 /******************************************************************************/
  57
  58 static int lnb_command(struct ddb *dev, u32 link, u32 lnb, u32 cmd)
  59 {
  60         u32 c, v = 0, tag = DDB_LINK_TAG(link);
  61
  62         v = LNB_TONE & (dev->link[link].lnb.tone << (15 - lnb));
  63         ddbwritel(dev, cmd | v, tag | LNB_CONTROL(lnb));
  64         for (c = 0; c < 10; c++) {
  65                 v = ddbreadl(dev, tag | LNB_CONTROL(lnb));
  66                 if ((v & LNB_BUSY) == 0)
  67                         break;
  68                 msleep(20);
  69         }
  70         if (c == 10)
  71                 dev_info(dev->dev, "%s lnb = %08x  cmd = %08x\n",
  72                          __func__, lnb, cmd);
  73         return 0;
  74 }
  75
  76 static int max_send_master_cmd(struct dvb_frontend *fe,
  77                                struct dvb_diseqc_master_cmd *cmd)
  78 {
  79         struct ddb_input *input = fe->sec_priv;
  80         struct ddb_port *port = input->port;
  81         struct ddb *dev = port->dev;
  82         struct ddb_dvb *dvb = &port->dvb[input->nr & 1];
  83         u32 tag = DDB_LINK_TAG(port->lnr);
  84         int i;
  85         u32 fmode = dev->link[port->lnr].lnb.fmode;
  86
  87         if (fmode == 2 || fmode == 1)
  88                 return 0;
  89         if (dvb->diseqc_send_master_cmd)
  90                 dvb->diseqc_send_master_cmd(fe, cmd);
  91
  92         mutex_lock(&dev->link[port->lnr].lnb.lock);
  93         ddbwritel(dev, 0, tag | LNB_BUF_LEVEL(dvb->input));
  94         for (i = 0; i < cmd->msg_len; i++)
  95                 ddbwritel(dev, cmd->msg[i], tag | LNB_BUF_WRITE(dvb->input));
  96         lnb_command(dev, port->lnr, dvb->input, LNB_CMD_DISEQC);
  97         mutex_unlock(&dev->link[port->lnr].lnb.lock);
  98         return 0;
  99 }
 100
 101 static int lnb_send_diseqc(struct ddb *dev, u32 link, u32 input,
 102                            struct dvb_diseqc_master_cmd *cmd)
 103 {
 104         u32 tag = DDB_LINK_TAG(link);
 105         int i;
 106
 107         ddbwritel(dev, 0, tag | LNB_BUF_LEVEL(input));
 108         for (i = 0; i < cmd->msg_len; i++)
 109                 ddbwritel(dev, cmd->msg[i], tag | LNB_BUF_WRITE(input));
 110         lnb_command(dev, link, input, LNB_CMD_DISEQC);
 111         return 0;
 112 }
 113
 114 static int lnb_set_sat(struct ddb *dev, u32 link, u32 input, u32 sat, u32 band,
 115                        u32 hor)
 116 {
 117         struct dvb_diseqc_master_cmd cmd = {
 118                 .msg = {0xe0, 0x10, 0x38, 0xf0, 0x00, 0x00},
 119                 .msg_len = 4
 120         };
 121         cmd.msg[3] = 0xf0 | (((sat << 2) & 0x0c) | (band ? 1 : 0) |
 122                 (hor ? 2 : 0));
 123         return lnb_send_diseqc(dev, link, input, &cmd);
 124 }
 125
 126 static int lnb_set_tone(struct ddb *dev, u32 link, u32 input,
 127                         enum fe_sec_tone_mode tone)
 128 {
 129         int s = 0;
 130         u32 mask = (1ULL << input);
 131
 132         switch (tone) {
 133         case SEC_TONE_OFF:
 134                 if (!(dev->link[link].lnb.tone & mask))
 135                         return 0;
 136                 dev->link[link].lnb.tone &= ~(1ULL << input);
 137                 break;
 138         case SEC_TONE_ON:
 139                 if (dev->link[link].lnb.tone & mask)
 140                         return 0;
 141                 dev->link[link].lnb.tone |= (1ULL << input);
 142                 break;
 143         default:
 144                 s = -EINVAL;
 145                 break;
 146         }
 147         if (!s)
 148                 s = lnb_command(dev, link, input, LNB_CMD_NOP);
 149         return s;
 150 }
 151
 152 static int lnb_set_voltage(struct ddb *dev, u32 link, u32 input,
 153                            enum fe_sec_voltage voltage)
 154 {
 155         int s = 0;
 156
 157         if (dev->link[link].lnb.oldvoltage[input] == voltage)
 158                 return 0;
 159         switch (voltage) {
 160         case SEC_VOLTAGE_OFF:
 161                 if (dev->link[link].lnb.voltage[input])
 162                         return 0;
 163                 lnb_command(dev, link, input, LNB_CMD_OFF);
 164                 break;
 165         case SEC_VOLTAGE_13:
 166                 lnb_command(dev, link, input, LNB_CMD_LOW);
 167                 break;
 168         case SEC_VOLTAGE_18:
 169                 lnb_command(dev, link, input, LNB_CMD_HIGH);
 170                 break;
 171         default:
 172                 s = -EINVAL;
 173                 break;
 174         }
 175         dev->link[link].lnb.oldvoltage[input] = voltage;
 176         return s;
 177 }
 178
 179 static int max_set_input_unlocked(struct dvb_frontend *fe, int in)
 180 {
 181         struct ddb_input *input = fe->sec_priv;
 182         struct ddb_port *port = input->port;
 183         struct ddb *dev = port->dev;
 184         struct ddb_dvb *dvb = &port->dvb[input->nr & 1];
 185         int res = 0;
 186
 187         if (in > 3)
 188                 return -EINVAL;
 189         if (dvb->input != in) {
 190                 u32 bit = (1ULL << input->nr);
 191                 u32 obit =
 192                         dev->link[port->lnr].lnb.voltage[dvb->input & 3] & bit;
 193
 194                 dev->link[port->lnr].lnb.voltage[dvb->input & 3] &= ~bit;
 195                 dvb->input = in;
 196                 dev->link[port->lnr].lnb.voltage[dvb->input & 3] |= obit;
 197         }
 198         res = dvb->set_input(fe, in);
 199         return res;
 200 }
 201
 202 static int max_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
 203 {
 204         struct ddb_input *input = fe->sec_priv;
 205         struct ddb_port *port = input->port;
 206         struct ddb *dev = port->dev;
 207         struct ddb_dvb *dvb = &port->dvb[input->nr & 1];
 208         int tuner = 0;
 209         int res = 0;
 210         u32 fmode = dev->link[port->lnr].lnb.fmode;
 211
 212         mutex_lock(&dev->link[port->lnr].lnb.lock);
 213         dvb->tone = tone;
 214         switch (fmode) {
 215         default:
 216         case 0:
 217         case 3:
 218                 res = lnb_set_tone(dev, port->lnr, dvb->input, tone);
 219                 break;
 220         case 1:
 221         case 2:
 222                 if (old_quattro) {
 223                         if (dvb->tone == SEC_TONE_ON)
 224                                 tuner |= 2;
 225                         if (dvb->voltage == SEC_VOLTAGE_18)
 226                                 tuner |= 1;
 227                 } else {
 228                         if (dvb->tone == SEC_TONE_ON)
 229                                 tuner |= 1;
 230                         if (dvb->voltage == SEC_VOLTAGE_18)
 231                                 tuner |= 2;
 232                 }
 233                 res = max_set_input_unlocked(fe, tuner);
 234                 break;
 235         }
 236         mutex_unlock(&dev->link[port->lnr].lnb.lock);
 237         return res;
 238 }
 239
 240 static int max_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage voltage)
 241 {
 242         struct ddb_input *input = fe->sec_priv;
 243         struct ddb_port *port = input->port;
 244         struct ddb *dev = port->dev;
 245         struct ddb_dvb *dvb = &port->dvb[input->nr & 1];
 246         int tuner = 0;
 247         u32 nv, ov = dev->link[port->lnr].lnb.voltages;
 248         int res = 0;
 249         u32 fmode = dev->link[port->lnr].lnb.fmode;
 250
 251         mutex_lock(&dev->link[port->lnr].lnb.lock);
 252         dvb->voltage = voltage;
 253
 254         switch (fmode) {
 255         case 3:
 256         default:
 257         case 0:
 258                 if (fmode == 3)
 259                         max_set_input_unlocked(fe, 0);
 260                 if (voltage == SEC_VOLTAGE_OFF)
 261                         dev->link[port->lnr].lnb.voltage[dvb->input] &=
 262                                 ~(1ULL << input->nr);
 263                 else
 264                         dev->link[port->lnr].lnb.voltage[dvb->input] |=
 265                                 (1ULL << input->nr);
 266
 267                 res = lnb_set_voltage(dev, port->lnr, dvb->input, voltage);
 268                 break;
 269         case 1:
 270         case 2:
 271                 if (voltage == SEC_VOLTAGE_OFF)
 272                         dev->link[port->lnr].lnb.voltages &=
 273                                 ~(1ULL << input->nr);
 274                 else
 275                         dev->link[port->lnr].lnb.voltages |=
 276                                 (1ULL << input->nr);
 277
 278                 nv = dev->link[port->lnr].lnb.voltages;
 279
 280                 if (old_quattro) {
 281                         if (dvb->tone == SEC_TONE_ON)
 282                                 tuner |= 2;
 283                         if (dvb->voltage == SEC_VOLTAGE_18)
 284                                 tuner |= 1;
 285                 } else {
 286                         if (dvb->tone == SEC_TONE_ON)
 287                                 tuner |= 1;
 288                         if (dvb->voltage == SEC_VOLTAGE_18)
 289                                 tuner |= 2;
 290                 }
 291                 res = max_set_input_unlocked(fe, tuner);
 292
 293                 if (nv != ov) {
 294                         if (nv) {
 295                                 lnb_set_voltage(
 296                                         dev, port->lnr,
 297                                         0, SEC_VOLTAGE_13);
 298                                 if (fmode == 1) {
 299                                         lnb_set_voltage(
 300                                                 dev, port->lnr,
 301                                                 0, SEC_VOLTAGE_13);
 302                                         if (old_quattro) {
 303                                                 lnb_set_voltage(
 304                                                         dev, port->lnr,
 305                                                         1, SEC_VOLTAGE_18);
 306                                                 lnb_set_voltage(
 307                                                         dev, port->lnr,
 308                                                         2, SEC_VOLTAGE_13);
 309                                         } else {
 310                                                 lnb_set_voltage(
 311                                                         dev, port->lnr,
 312                                                         1, SEC_VOLTAGE_13);
 313                                                 lnb_set_voltage(
 314                                                         dev, port->lnr,
 315                                                         2, SEC_VOLTAGE_18);
 316                                         }
 317                                         lnb_set_voltage(
 318                                                 dev, port->lnr,
 319                                                 3, SEC_VOLTAGE_18);
 320                                 }
 321                         } else {
 322                                 lnb_set_voltage(
 323                                         dev, port->lnr,
 324                                         0, SEC_VOLTAGE_OFF);
 325                                 if (fmode == 1) {
 326                                         lnb_set_voltage(
 327                                                 dev, port->lnr,
 328                                                 1, SEC_VOLTAGE_OFF);
 329                                         lnb_set_voltage(
 330                                                 dev, port->lnr,
 331                                                 2, SEC_VOLTAGE_OFF);
 332                                         lnb_set_voltage(
 333                                                 dev, port->lnr,
 334                                                 3, SEC_VOLTAGE_OFF);
 335                                 }
 336                         }
 337                 }
 338                 break;
 339         }
 340         mutex_unlock(&dev->link[port->lnr].lnb.lock);
 341         return res;
 342 }
 343
 344 static int max_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
 345 {
 346         return 0;
 347 }
 348
 349 static int max_send_burst(struct dvb_frontend *fe, enum fe_sec_mini_cmd burst)
 350 {
 351         return 0;
 352 }
 353
 354 static int mxl_fw_read(void *priv, u8 *buf, u32 len)
 355 {
 356         struct ddb_link *link = priv;
 357         struct ddb *dev = link->dev;
 358
 359         dev_info(dev->dev, "Read mxl_fw from link %u\n", link->nr);
 360
 361         return ddbridge_flashread(dev, link->nr, buf, 0xc0000, len);
 362 }
 363
 364 int ddb_lnb_init_fmode(struct ddb *dev, struct ddb_link *link, u32 fm)
 365 {
 366         u32 l = link->nr;
 367
 368         if (link->lnb.fmode == fm)
 369                 return 0;
 370         dev_info(dev->dev, "Set fmode link %u = %u\n", l, fm);
 371         mutex_lock(&link->lnb.lock);
 372         if (fm == 2 || fm == 1) {
 373                 if (fmode_sat >= 0) {
 374                         lnb_set_sat(dev, l, 0, fmode_sat, 0, 0);
 375                         if (old_quattro) {
 376                                 lnb_set_sat(dev, l, 1, fmode_sat, 0, 1);
 377                                 lnb_set_sat(dev, l, 2, fmode_sat, 1, 0);
 378                         } else {
 379                                 lnb_set_sat(dev, l, 1, fmode_sat, 1, 0);
 380                                 lnb_set_sat(dev, l, 2, fmode_sat, 0, 1);
 381                         }
 382                         lnb_set_sat(dev, l, 3, fmode_sat, 1, 1);
 383                 }
 384                 lnb_set_tone(dev, l, 0, SEC_TONE_OFF);
 385                 if (old_quattro) {
 386                         lnb_set_tone(dev, l, 1, SEC_TONE_OFF);
 387                         lnb_set_tone(dev, l, 2, SEC_TONE_ON);
 388                 } else {
 389                         lnb_set_tone(dev, l, 1, SEC_TONE_ON);
 390                         lnb_set_tone(dev, l, 2, SEC_TONE_OFF);
 391                 }
 392                 lnb_set_tone(dev, l, 3, SEC_TONE_ON);
 393         }
 394         link->lnb.fmode = fm;
 395         mutex_unlock(&link->lnb.lock);
 396         return 0;
 397 }
 398
 399 static struct mxl5xx_cfg mxl5xx = {
 400         .adr      = 0x60,
 401         .type     = 0x01,
 402         .clk      = 27000000,
 403         .ts_clk   = 139,
 404         .cap      = 12,
 405         .fw_read  = mxl_fw_read,
 406 };
 407
 408 int ddb_fe_attach_mxl5xx(struct ddb_input *input)
 409 {
 410         struct ddb *dev = input->port->dev;
 411         struct i2c_adapter *i2c = &input->port->i2c->adap;
 412         struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
 413         struct ddb_port *port = input->port;
 414         struct ddb_link *link = &dev->link[port->lnr];
 415         struct mxl5xx_cfg cfg;
 416         int demod, tuner;
 417
 418         cfg = mxl5xx;
 419         cfg.fw_priv = link;
 420         dvb->set_input = NULL;
 421
 422         demod = input->nr;
 423         tuner = demod & 3;
 424         if (fmode == 3)
 425                 tuner = 0;
 426
 427         dvb->fe = dvb_attach(mxl5xx_attach, i2c, &cfg,
 428                              demod, tuner, &dvb->set_input);
 429
 430         if (!dvb->fe) {
 431                 dev_err(dev->dev, "No MXL5XX found!\n");
 432                 return -ENODEV;
 433         }
 434
 435         if (!dvb->set_input) {
 436                 dev_err(dev->dev, "No mxl5xx_set_input function pointer!\n");
 437                 return -ENODEV;
 438         }
 439
 440         if (input->nr < 4) {
 441                 lnb_command(dev, port->lnr, input->nr, LNB_CMD_INIT);
 442                 lnb_set_voltage(dev, port->lnr, input->nr, SEC_VOLTAGE_OFF);
 443         }
 444         ddb_lnb_init_fmode(dev, link, fmode);
 445
 446         dvb->fe->ops.set_voltage = max_set_voltage;
 447         dvb->fe->ops.enable_high_lnb_voltage = max_enable_high_lnb_voltage;
 448         dvb->fe->ops.set_tone = max_set_tone;
 449         dvb->diseqc_send_master_cmd = dvb->fe->ops.diseqc_send_master_cmd;
 450         dvb->fe->ops.diseqc_send_master_cmd = max_send_master_cmd;
 451         dvb->fe->ops.diseqc_send_burst = max_send_burst;
 452         dvb->fe->sec_priv = input;
 453         dvb->input = tuner;
 454         return 0;
 455 }
 456
 457 /******************************************************************************/
 458 /* MAX MCI related functions */
 459
 460 int ddb_fe_attach_mci(struct ddb_input *input, u32 type)
 461 {
 462         struct ddb *dev = input->port->dev;
 463         struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1];
 464         struct ddb_port *port = input->port;
 465         struct ddb_link *link = &dev->link[port->lnr];
 466         int demod, tuner;
 467         struct mci_cfg cfg;
 468
 469         demod = input->nr;
 470         tuner = demod & 3;
 471         switch (type) {
 472         case DDB_TUNER_MCI_SX8:
 473                 cfg = ddb_max_sx8_cfg;
 474                 if (fmode == 3)
 475                         tuner = 0;
 476                 break;
 477         default:
 478                 return -EINVAL;
 479         }
 480         dvb->fe = ddb_mci_attach(input, &cfg, demod, &dvb->set_input);
 481         if (!dvb->fe) {
 482                 dev_err(dev->dev, "No MCI card found!\n");
 483                 return -ENODEV;
 484         }
 485         if (!dvb->set_input) {
 486                 dev_err(dev->dev, "No MCI set_input function pointer!\n");
 487                 return -ENODEV;
 488         }
 489         if (input->nr < 4) {
 490                 lnb_command(dev, port->lnr, input->nr, LNB_CMD_INIT);
 491                 lnb_set_voltage(dev, port->lnr, input->nr, SEC_VOLTAGE_OFF);
 492         }
 493         ddb_lnb_init_fmode(dev, link, fmode);
 494
 495         dvb->fe->ops.set_voltage = max_set_voltage;
 496         dvb->fe->ops.enable_high_lnb_voltage = max_enable_high_lnb_voltage;
 497         dvb->fe->ops.set_tone = max_set_tone;
 498         dvb->diseqc_send_master_cmd = dvb->fe->ops.diseqc_send_master_cmd;
 499         dvb->fe->ops.diseqc_send_master_cmd = max_send_master_cmd;
 500         dvb->fe->ops.diseqc_send_burst = max_send_burst;
 501         dvb->fe->sec_priv = input;
 502         dvb->input = tuner;
 503         return 0;
 504 }