kernel/drivers/media/pci/saa7164/saa7164-dvb.c

   1 /*
   2  *  Driver for the NXP SAA7164 PCIe bridge
   3  *
   4  *  Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include "saa7164.h"
  23
  24 #include "tda10048.h"
  25 #include "tda18271.h"
  26 #include "s5h1411.h"
  27
  28 #define DRIVER_NAME "saa7164"
  29
  30 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  31
  32 /* addr is in the card struct, get it from there */
  33 static struct tda10048_config hauppauge_hvr2200_1_config = {
  34         .demod_address    = 0x10 >> 1,
  35         .output_mode      = TDA10048_SERIAL_OUTPUT,
  36         .fwbulkwritelen   = TDA10048_BULKWRITE_200,
  37         .inversion        = TDA10048_INVERSION_ON,
  38         .dtv6_if_freq_khz = TDA10048_IF_3300,
  39         .dtv7_if_freq_khz = TDA10048_IF_3500,
  40         .dtv8_if_freq_khz = TDA10048_IF_4000,
  41         .clk_freq_khz     = TDA10048_CLK_16000,
  42 };
  43 static struct tda10048_config hauppauge_hvr2200_2_config = {
  44         .demod_address    = 0x12 >> 1,
  45         .output_mode      = TDA10048_SERIAL_OUTPUT,
  46         .fwbulkwritelen   = TDA10048_BULKWRITE_200,
  47         .inversion        = TDA10048_INVERSION_ON,
  48         .dtv6_if_freq_khz = TDA10048_IF_3300,
  49         .dtv7_if_freq_khz = TDA10048_IF_3500,
  50         .dtv8_if_freq_khz = TDA10048_IF_4000,
  51         .clk_freq_khz     = TDA10048_CLK_16000,
  52 };
  53
  54 static struct tda18271_std_map hauppauge_tda18271_std_map = {
  55         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 3,
  56                       .if_lvl = 6, .rfagc_top = 0x37 },
  57         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 0,
  58                       .if_lvl = 6, .rfagc_top = 0x37 },
  59 };
  60
  61 static struct tda18271_config hauppauge_hvr22x0_tuner_config = {
  62         .std_map        = &hauppauge_tda18271_std_map,
  63         .gate           = TDA18271_GATE_ANALOG,
  64         .role           = TDA18271_MASTER,
  65 };
  66
  67 static struct tda18271_config hauppauge_hvr22x0s_tuner_config = {
  68         .std_map        = &hauppauge_tda18271_std_map,
  69         .gate           = TDA18271_GATE_ANALOG,
  70         .role           = TDA18271_SLAVE,
  71         .output_opt     = TDA18271_OUTPUT_LT_OFF,
  72         .rf_cal_on_startup = 1
  73 };
  74
  75 static struct s5h1411_config hauppauge_s5h1411_config = {
  76         .output_mode   = S5H1411_SERIAL_OUTPUT,
  77         .gpio          = S5H1411_GPIO_ON,
  78         .qam_if        = S5H1411_IF_4000,
  79         .vsb_if        = S5H1411_IF_3250,
  80         .inversion     = S5H1411_INVERSION_ON,
  81         .status_mode   = S5H1411_DEMODLOCKING,
  82         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
  83 };
  84
  85 static int saa7164_dvb_stop_port(struct saa7164_port *port)
  86 {
  87         struct saa7164_dev *dev = port->dev;
  88         int ret;
  89
  90         ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
  91         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
  92                 printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n",
  93                         __func__, ret);
  94                 ret = -EIO;
  95         } else {
  96                 dprintk(DBGLVL_DVB, "%s()    Stopped\n", __func__);
  97                 ret = 0;
  98         }
  99
 100         return ret;
 101 }
 102
 103 static int saa7164_dvb_acquire_port(struct saa7164_port *port)
 104 {
 105         struct saa7164_dev *dev = port->dev;
 106         int ret;
 107
 108         ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
 109         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 110                 printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n",
 111                         __func__, ret);
 112                 ret = -EIO;
 113         } else {
 114                 dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);
 115                 ret = 0;
 116         }
 117
 118         return ret;
 119 }
 120
 121 static int saa7164_dvb_pause_port(struct saa7164_port *port)
 122 {
 123         struct saa7164_dev *dev = port->dev;
 124         int ret;
 125
 126         ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
 127         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 128                 printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n",
 129                         __func__, ret);
 130                 ret = -EIO;
 131         } else {
 132                 dprintk(DBGLVL_DVB, "%s()   Paused\n", __func__);
 133                 ret = 0;
 134         }
 135
 136         return ret;
 137 }
 138
 139 /* Firmware is very windows centric, meaning you have to transition
 140  * the part through AVStream / KS Windows stages, forwards or backwards.
 141  * States are: stopped, acquired (h/w), paused, started.
 142  */
 143 static int saa7164_dvb_stop_streaming(struct saa7164_port *port)
 144 {
 145         struct saa7164_dev *dev = port->dev;
 146         struct saa7164_buffer *buf;
 147         struct list_head *p, *q;
 148         int ret;
 149
 150         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
 151
 152         ret = saa7164_dvb_pause_port(port);
 153         ret = saa7164_dvb_acquire_port(port);
 154         ret = saa7164_dvb_stop_port(port);
 155
 156         /* Mark the hardware buffers as free */
 157         mutex_lock(&port->dmaqueue_lock);
 158         list_for_each_safe(p, q, &port->dmaqueue.list) {
 159                 buf = list_entry(p, struct saa7164_buffer, list);
 160                 buf->flags = SAA7164_BUFFER_FREE;
 161         }
 162         mutex_unlock(&port->dmaqueue_lock);
 163
 164         return ret;
 165 }
 166
 167 static int saa7164_dvb_start_port(struct saa7164_port *port)
 168 {
 169         struct saa7164_dev *dev = port->dev;
 170         int ret = 0, result;
 171
 172         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
 173
 174         saa7164_buffer_cfg_port(port);
 175
 176         /* Acquire the hardware */
 177         result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
 178         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 179                 printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n",
 180                         __func__, result);
 181
 182                 /* Stop the hardware, regardless */
 183                 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 184                 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 185                         printk(KERN_ERR "%s() acquire/forced stop transition "
 186                                 "failed, res = 0x%x\n", __func__, result);
 187                 }
 188                 ret = -EIO;
 189                 goto out;
 190         } else
 191                 dprintk(DBGLVL_DVB, "%s()   Acquired\n", __func__);
 192
 193         /* Pause the hardware */
 194         result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
 195         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 196                 printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n",
 197                                 __func__, result);
 198
 199                 /* Stop the hardware, regardless */
 200                 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 201                 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 202                         printk(KERN_ERR "%s() pause/forced stop transition "
 203                                 "failed, res = 0x%x\n", __func__, result);
 204                 }
 205
 206                 ret = -EIO;
 207                 goto out;
 208         } else
 209                 dprintk(DBGLVL_DVB, "%s()   Paused\n", __func__);
 210
 211         /* Start the hardware */
 212         result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);
 213         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 214                 printk(KERN_ERR "%s() run transition failed, result = 0x%x\n",
 215                                 __func__, result);
 216
 217                 /* Stop the hardware, regardless */
 218                 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 219                 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 220                         printk(KERN_ERR "%s() run/forced stop transition "
 221                                 "failed, res = 0x%x\n", __func__, result);
 222                 }
 223
 224                 ret = -EIO;
 225         } else
 226                 dprintk(DBGLVL_DVB, "%s()   Running\n", __func__);
 227
 228 out:
 229         return ret;
 230 }
 231
 232 static int saa7164_dvb_start_feed(struct dvb_demux_feed *feed)
 233 {
 234         struct dvb_demux *demux = feed->demux;
 235         struct saa7164_port *port = (struct saa7164_port *) demux->priv;
 236         struct saa7164_dvb *dvb = &port->dvb;
 237         struct saa7164_dev *dev = port->dev;
 238         int ret = 0;
 239
 240         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
 241
 242         if (!demux->dmx.frontend)
 243                 return -EINVAL;
 244
 245         mutex_lock(&dvb->lock);
 246         if (dvb->feeding++ == 0) {
 247                 /* Start transport */
 248                 ret = saa7164_dvb_start_port(port);
 249         }
 250         mutex_unlock(&dvb->lock);
 251         dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
 252                 __func__, port->nr, dvb->feeding);
 253
 254         return ret;
 255 }
 256
 257 static int saa7164_dvb_stop_feed(struct dvb_demux_feed *feed)
 258 {
 259         struct dvb_demux *demux = feed->demux;
 260         struct saa7164_port *port = (struct saa7164_port *) demux->priv;
 261         struct saa7164_dvb *dvb = &port->dvb;
 262         struct saa7164_dev *dev = port->dev;
 263         int ret = 0;
 264
 265         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
 266
 267         mutex_lock(&dvb->lock);
 268         if (--dvb->feeding == 0) {
 269                 /* Stop transport */
 270                 ret = saa7164_dvb_stop_streaming(port);
 271         }
 272         mutex_unlock(&dvb->lock);
 273         dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
 274                 __func__, port->nr, dvb->feeding);
 275
 276         return ret;
 277 }
 278
 279 static int dvb_register(struct saa7164_port *port)
 280 {
 281         struct saa7164_dvb *dvb = &port->dvb;
 282         struct saa7164_dev *dev = port->dev;
 283         struct saa7164_buffer *buf;
 284         int result, i;
 285
 286         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
 287
 288         if (port->type != SAA7164_MPEG_DVB)
 289                 BUG();
 290
 291         /* Sanity check that the PCI configuration space is active */
 292         if (port->hwcfg.BARLocation == 0) {
 293                 result = -ENOMEM;
 294                 printk(KERN_ERR "%s: dvb_register_adapter failed "
 295                        "(errno = %d), NO PCI configuration\n",
 296                         DRIVER_NAME, result);
 297                 goto fail_adapter;
 298         }
 299
 300         /* Init and establish defaults */
 301         port->hw_streamingparams.bitspersample = 8;
 302         port->hw_streamingparams.samplesperline = 188;
 303         port->hw_streamingparams.numberoflines =
 304                 (SAA7164_TS_NUMBER_OF_LINES * 188) / 188;
 305
 306         port->hw_streamingparams.pitch = 188;
 307         port->hw_streamingparams.linethreshold = 0;
 308         port->hw_streamingparams.pagetablelistvirt = NULL;
 309         port->hw_streamingparams.pagetablelistphys = NULL;
 310         port->hw_streamingparams.numpagetables = 2 +
 311                 ((SAA7164_TS_NUMBER_OF_LINES * 188) / PAGE_SIZE);
 312
 313         port->hw_streamingparams.numpagetableentries = port->hwcfg.buffercount;
 314
 315         /* Allocate the PCI resources */
 316         for (i = 0; i < port->hwcfg.buffercount; i++) {
 317                 buf = saa7164_buffer_alloc(port,
 318                         port->hw_streamingparams.numberoflines *
 319                         port->hw_streamingparams.pitch);
 320
 321                 if (!buf) {
 322                         result = -ENOMEM;
 323                         printk(KERN_ERR "%s: dvb_register_adapter failed "
 324                                "(errno = %d), unable to allocate buffers\n",
 325                                 DRIVER_NAME, result);
 326                         goto fail_adapter;
 327                 }
 328
 329                 mutex_lock(&port->dmaqueue_lock);
 330                 list_add_tail(&buf->list, &port->dmaqueue.list);
 331                 mutex_unlock(&port->dmaqueue_lock);
 332         }
 333
 334         /* register adapter */
 335         result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
 336                         &dev->pci->dev, adapter_nr);
 337         if (result < 0) {
 338                 printk(KERN_ERR "%s: dvb_register_adapter failed "
 339                        "(errno = %d)\n", DRIVER_NAME, result);
 340                 goto fail_adapter;
 341         }
 342         dvb->adapter.priv = port;
 343
 344         /* register frontend */
 345         result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
 346         if (result < 0) {
 347                 printk(KERN_ERR "%s: dvb_register_frontend failed "
 348                        "(errno = %d)\n", DRIVER_NAME, result);
 349                 goto fail_frontend;
 350         }
 351
 352         /* register demux stuff */
 353         dvb->demux.dmx.capabilities =
 354                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 355                 DMX_MEMORY_BASED_FILTERING;
 356         dvb->demux.priv       = port;
 357         dvb->demux.filternum  = 256;
 358         dvb->demux.feednum    = 256;
 359         dvb->demux.start_feed = saa7164_dvb_start_feed;
 360         dvb->demux.stop_feed  = saa7164_dvb_stop_feed;
 361         result = dvb_dmx_init(&dvb->demux);
 362         if (result < 0) {
 363                 printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
 364                        DRIVER_NAME, result);
 365                 goto fail_dmx;
 366         }
 367
 368         dvb->dmxdev.filternum    = 256;
 369         dvb->dmxdev.demux        = &dvb->demux.dmx;
 370         dvb->dmxdev.capabilities = 0;
 371         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 372         if (result < 0) {
 373                 printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
 374                        DRIVER_NAME, result);
 375                 goto fail_dmxdev;
 376         }
 377
 378         dvb->fe_hw.source = DMX_FRONTEND_0;
 379         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 380         if (result < 0) {
 381                 printk(KERN_ERR "%s: add_frontend failed "
 382                        "(DMX_FRONTEND_0, errno = %d)\n", DRIVER_NAME, result);
 383                 goto fail_fe_hw;
 384         }
 385
 386         dvb->fe_mem.source = DMX_MEMORY_FE;
 387         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 388         if (result < 0) {
 389                 printk(KERN_ERR "%s: add_frontend failed "
 390                        "(DMX_MEMORY_FE, errno = %d)\n", DRIVER_NAME, result);
 391                 goto fail_fe_mem;
 392         }
 393
 394         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 395         if (result < 0) {
 396                 printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
 397                        DRIVER_NAME, result);
 398                 goto fail_fe_conn;
 399         }
 400
 401         /* register network adapter */
 402         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 403         return 0;
 404
 405 fail_fe_conn:
 406         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 407 fail_fe_mem:
 408         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 409 fail_fe_hw:
 410         dvb_dmxdev_release(&dvb->dmxdev);
 411 fail_dmxdev:
 412         dvb_dmx_release(&dvb->demux);
 413 fail_dmx:
 414         dvb_unregister_frontend(dvb->frontend);
 415 fail_frontend:
 416         dvb_frontend_detach(dvb->frontend);
 417         dvb_unregister_adapter(&dvb->adapter);
 418 fail_adapter:
 419         return result;
 420 }
 421
 422 int saa7164_dvb_unregister(struct saa7164_port *port)
 423 {
 424         struct saa7164_dvb *dvb = &port->dvb;
 425         struct saa7164_dev *dev = port->dev;
 426         struct saa7164_buffer *b;
 427         struct list_head *c, *n;
 428
 429         dprintk(DBGLVL_DVB, "%s()\n", __func__);
 430
 431         if (port->type != SAA7164_MPEG_DVB)
 432                 BUG();
 433
 434         /* Remove any allocated buffers */
 435         mutex_lock(&port->dmaqueue_lock);
 436         list_for_each_safe(c, n, &port->dmaqueue.list) {
 437                 b = list_entry(c, struct saa7164_buffer, list);
 438                 list_del(c);
 439                 saa7164_buffer_dealloc(b);
 440         }
 441         mutex_unlock(&port->dmaqueue_lock);
 442
 443         if (dvb->frontend == NULL)
 444                 return 0;
 445
 446         dvb_net_release(&dvb->net);
 447         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 448         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 449         dvb_dmxdev_release(&dvb->dmxdev);
 450         dvb_dmx_release(&dvb->demux);
 451         dvb_unregister_frontend(dvb->frontend);
 452         dvb_frontend_detach(dvb->frontend);
 453         dvb_unregister_adapter(&dvb->adapter);
 454         return 0;
 455 }
 456
 457 /* All the DVB attach calls go here, this function get's modified
 458  * for each new card.
 459  */
 460 int saa7164_dvb_register(struct saa7164_port *port)
 461 {
 462         struct saa7164_dev *dev = port->dev;
 463         struct saa7164_dvb *dvb = &port->dvb;
 464         struct saa7164_i2c *i2c_bus = NULL;
 465         int ret;
 466
 467         dprintk(DBGLVL_DVB, "%s()\n", __func__);
 468
 469         /* init frontend */
 470         switch (dev->board) {
 471         case SAA7164_BOARD_HAUPPAUGE_HVR2200:
 472         case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
 473         case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
 474         case SAA7164_BOARD_HAUPPAUGE_HVR2200_4:
 475         case SAA7164_BOARD_HAUPPAUGE_HVR2200_5:
 476                 i2c_bus = &dev->i2c_bus[port->nr + 1];
 477                 switch (port->nr) {
 478                 case 0:
 479                         port->dvb.frontend = dvb_attach(tda10048_attach,
 480                                 &hauppauge_hvr2200_1_config,
 481                                 &i2c_bus->i2c_adap);
 482
 483                         if (port->dvb.frontend != NULL) {
 484                                 /* TODO: addr is in the card struct */
 485                                 dvb_attach(tda18271_attach, port->dvb.frontend,
 486                                         0xc0 >> 1, &i2c_bus->i2c_adap,
 487                                         &hauppauge_hvr22x0_tuner_config);
 488                         }
 489
 490                         break;
 491                 case 1:
 492                         port->dvb.frontend = dvb_attach(tda10048_attach,
 493                                 &hauppauge_hvr2200_2_config,
 494                                 &i2c_bus->i2c_adap);
 495
 496                         if (port->dvb.frontend != NULL) {
 497                                 /* TODO: addr is in the card struct */
 498                                 dvb_attach(tda18271_attach, port->dvb.frontend,
 499                                         0xc0 >> 1, &i2c_bus->i2c_adap,
 500                                         &hauppauge_hvr22x0s_tuner_config);
 501                         }
 502
 503                         break;
 504                 }
 505                 break;
 506         case SAA7164_BOARD_HAUPPAUGE_HVR2250:
 507         case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
 508         case SAA7164_BOARD_HAUPPAUGE_HVR2250_3:
 509                 i2c_bus = &dev->i2c_bus[port->nr + 1];
 510
 511                 port->dvb.frontend = dvb_attach(s5h1411_attach,
 512                         &hauppauge_s5h1411_config,
 513                         &i2c_bus->i2c_adap);
 514
 515                 if (port->dvb.frontend != NULL) {
 516                         if (port->nr == 0) {
 517                                 /* Master TDA18271 */
 518                                 /* TODO: addr is in the card struct */
 519                                 dvb_attach(tda18271_attach, port->dvb.frontend,
 520                                         0xc0 >> 1, &i2c_bus->i2c_adap,
 521                                         &hauppauge_hvr22x0_tuner_config);
 522                         } else {
 523                                 /* Slave TDA18271 */
 524                                 dvb_attach(tda18271_attach, port->dvb.frontend,
 525                                         0xc0 >> 1, &i2c_bus->i2c_adap,
 526                                         &hauppauge_hvr22x0s_tuner_config);
 527                         }
 528                 }
 529
 530                 break;
 531         default:
 532                 printk(KERN_ERR "%s: The frontend isn't supported\n",
 533                        dev->name);
 534                 break;
 535         }
 536         if (NULL == dvb->frontend) {
 537                 printk(KERN_ERR "%s() Frontend initialization failed\n",
 538                        __func__);
 539                 return -1;
 540         }
 541
 542         /* register everything */
 543         ret = dvb_register(port);
 544         if (ret < 0) {
 545                 if (dvb->frontend->ops.release)
 546                         dvb->frontend->ops.release(dvb->frontend);
 547                 return ret;
 548         }
 549
 550         return 0;
 551 }
 552