drivers/media/dvb/siano/smsusb.c

   1 /****************************************************************
   2
   3 Siano Mobile Silicon, Inc.
   4 MDTV receiver kernel modules.
   5 Copyright (C) 2005-2009, Uri Shkolnik, Anatoly Greenblat
   6
   7 This program is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 2 of the License, or
  10 (at your option) any later version.
  11
  12  This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  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, see <http://www.gnu.org/licenses/>.
  19
  20 ****************************************************************/
  21
  22 #include <linux/kernel.h>
  23 #include <linux/init.h>
  24 #include <linux/usb.h>
  25 #include <linux/firmware.h>
  26
  27 #include "smscoreapi.h"
  28 #include "sms-cards.h"
  29 #include "smsendian.h"
  30
  31 static int sms_dbg;
  32 module_param_named(debug, sms_dbg, int, 0644);
  33 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
  34
  35 #define USB1_BUFFER_SIZE                0x1000
  36 #define USB2_BUFFER_SIZE                0x4000
  37
  38 #define MAX_BUFFERS             50
  39 #define MAX_URBS                10
  40
  41 struct smsusb_device_t;
  42
  43 struct smsusb_urb_t {
  44         struct smscore_buffer_t *cb;
  45         struct smsusb_device_t  *dev;
  46
  47         struct urb urb;
  48 };
  49
  50 struct smsusb_device_t {
  51         struct usb_device *udev;
  52         struct smscore_device_t *coredev;
  53
  54         struct smsusb_urb_t     surbs[MAX_URBS];
  55
  56         int             response_alignment;
  57         int             buffer_size;
  58 };
  59
  60 static int smsusb_submit_urb(struct smsusb_device_t *dev,
  61                              struct smsusb_urb_t *surb);
  62
  63 static void smsusb_onresponse(struct urb *urb)
  64 {
  65         struct smsusb_urb_t *surb = (struct smsusb_urb_t *) urb->context;
  66         struct smsusb_device_t *dev = surb->dev;
  67
  68         if (urb->status == -ESHUTDOWN) {
  69                 sms_err("error, urb status %d (-ESHUTDOWN), %d bytes",
  70                         urb->status, urb->actual_length);
  71                 return;
  72         }
  73
  74         if ((urb->actual_length > 0) && (urb->status == 0)) {
  75                 struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *)surb->cb->p;
  76
  77                 smsendian_handle_message_header(phdr);
  78                 if (urb->actual_length >= phdr->msgLength) {
  79                         surb->cb->size = phdr->msgLength;
  80
  81                         if (dev->response_alignment &&
  82                             (phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG)) {
  83
  84                                 surb->cb->offset =
  85                                         dev->response_alignment +
  86                                         ((phdr->msgFlags >> 8) & 3);
  87
  88                                 /* sanity check */
  89                                 if (((int) phdr->msgLength +
  90                                      surb->cb->offset) > urb->actual_length) {
  91                                         sms_err("invalid response "
  92                                                 "msglen %d offset %d "
  93                                                 "size %d",
  94                                                 phdr->msgLength,
  95                                                 surb->cb->offset,
  96                                                 urb->actual_length);
  97                                         goto exit_and_resubmit;
  98                                 }
  99
 100                                 /* move buffer pointer and
 101                                  * copy header to its new location */
 102                                 memcpy((char *) phdr + surb->cb->offset,
 103                                        phdr, sizeof(struct SmsMsgHdr_ST));
 104                         } else
 105                                 surb->cb->offset = 0;
 106
 107                         smscore_onresponse(dev->coredev, surb->cb);
 108                         surb->cb = NULL;
 109                 } else {
 110                         sms_err("invalid response "
 111                                 "msglen %d actual %d",
 112                                 phdr->msgLength, urb->actual_length);
 113                 }
 114         } else
 115                 sms_err("error, urb status %d, %d bytes",
 116                         urb->status, urb->actual_length);
 117
 118
 119 exit_and_resubmit:
 120         smsusb_submit_urb(dev, surb);
 121 }
 122
 123 static int smsusb_submit_urb(struct smsusb_device_t *dev,
 124                              struct smsusb_urb_t *surb)
 125 {
 126         if (!surb->cb) {
 127                 surb->cb = smscore_getbuffer(dev->coredev);
 128                 if (!surb->cb) {
 129                         sms_err("smscore_getbuffer(...) returned NULL");
 130                         return -ENOMEM;
 131                 }
 132         }
 133
 134         usb_fill_bulk_urb(
 135                 &surb->urb,
 136                 dev->udev,
 137                 usb_rcvbulkpipe(dev->udev, 0x81),
 138                 surb->cb->p,
 139                 dev->buffer_size,
 140                 smsusb_onresponse,
 141                 surb
 142         );
 143         surb->urb.transfer_dma = surb->cb->phys;
 144         surb->urb.transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 145
 146         return usb_submit_urb(&surb->urb, GFP_ATOMIC);
 147 }
 148
 149 static void smsusb_stop_streaming(struct smsusb_device_t *dev)
 150 {
 151         int i;
 152
 153         for (i = 0; i < MAX_URBS; i++) {
 154                 usb_kill_urb(&dev->surbs[i].urb);
 155
 156                 if (dev->surbs[i].cb) {
 157                         smscore_putbuffer(dev->coredev, dev->surbs[i].cb);
 158                         dev->surbs[i].cb = NULL;
 159                 }
 160         }
 161 }
 162
 163 static int smsusb_start_streaming(struct smsusb_device_t *dev)
 164 {
 165         int i, rc;
 166
 167         for (i = 0; i < MAX_URBS; i++) {
 168                 rc = smsusb_submit_urb(dev, &dev->surbs[i]);
 169                 if (rc < 0) {
 170                         sms_err("smsusb_submit_urb(...) failed");
 171                         smsusb_stop_streaming(dev);
 172                         break;
 173                 }
 174         }
 175
 176         return rc;
 177 }
 178
 179 static int smsusb_sendrequest(void *context, void *buffer, size_t size)
 180 {
 181         struct smsusb_device_t *dev = (struct smsusb_device_t *) context;
 182         int dummy;
 183
 184         smsendian_handle_message_header((struct SmsMsgHdr_ST *)buffer);
 185         return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
 186                             buffer, size, &dummy, 1000);
 187 }
 188
 189 static char *smsusb1_fw_lkup[] = {
 190         "dvbt_stellar_usb.inp",
 191         "dvbh_stellar_usb.inp",
 192         "tdmb_stellar_usb.inp",
 193         "none",
 194         "dvbt_bda_stellar_usb.inp",
 195 };
 196
 197 static inline char *sms_get_fw_name(int mode, int board_id)
 198 {
 199         char **fw = sms_get_board(board_id)->fw;
 200         return (fw && fw[mode]) ? fw[mode] : smsusb1_fw_lkup[mode];
 201 }
 202
 203 static int smsusb1_load_firmware(struct usb_device *udev, int id, int board_id)
 204 {
 205         const struct firmware *fw;
 206         u8 *fw_buffer;
 207         int rc, dummy;
 208         char *fw_filename;
 209
 210         if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA) {
 211                 sms_err("invalid firmware id specified %d", id);
 212                 return -EINVAL;
 213         }
 214
 215         fw_filename = sms_get_fw_name(id, board_id);
 216
 217         rc = request_firmware(&fw, fw_filename, &udev->dev);
 218         if (rc < 0) {
 219                 sms_warn("failed to open \"%s\" mode %d, "
 220                          "trying again with default firmware", fw_filename, id);
 221
 222                 fw_filename = smsusb1_fw_lkup[id];
 223                 rc = request_firmware(&fw, fw_filename, &udev->dev);
 224                 if (rc < 0) {
 225                         sms_warn("failed to open \"%s\" mode %d",
 226                                  fw_filename, id);
 227
 228                         return rc;
 229                 }
 230         }
 231
 232         fw_buffer = kmalloc(fw->size, GFP_KERNEL);
 233         if (fw_buffer) {
 234                 memcpy(fw_buffer, fw->data, fw->size);
 235
 236                 rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2),
 237                                   fw_buffer, fw->size, &dummy, 1000);
 238
 239                 sms_info("sent %zd(%d) bytes, rc %d", fw->size, dummy, rc);
 240
 241                 kfree(fw_buffer);
 242         } else {
 243                 sms_err("failed to allocate firmware buffer");
 244                 rc = -ENOMEM;
 245         }
 246         sms_info("read FW %s, size=%zd", fw_filename, fw->size);
 247
 248         release_firmware(fw);
 249
 250         return rc;
 251 }
 252
 253 static void smsusb1_detectmode(void *context, int *mode)
 254 {
 255         char *product_string =
 256                 ((struct smsusb_device_t *) context)->udev->product;
 257
 258         *mode = DEVICE_MODE_NONE;
 259
 260         if (!product_string) {
 261                 product_string = "none";
 262                 sms_err("product string not found");
 263         } else if (strstr(product_string, "DVBH"))
 264                 *mode = 1;
 265         else if (strstr(product_string, "BDA"))
 266                 *mode = 4;
 267         else if (strstr(product_string, "DVBT"))
 268                 *mode = 0;
 269         else if (strstr(product_string, "TDMB"))
 270                 *mode = 2;
 271
 272         sms_info("%d \"%s\"", *mode, product_string);
 273 }
 274
 275 static int smsusb1_setmode(void *context, int mode)
 276 {
 277         struct SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK,
 278                              sizeof(struct SmsMsgHdr_ST), 0 };
 279
 280         if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) {
 281                 sms_err("invalid firmware id specified %d", mode);
 282                 return -EINVAL;
 283         }
 284
 285         return smsusb_sendrequest(context, &Msg, sizeof(Msg));
 286 }
 287
 288 static void smsusb_term_device(struct usb_interface *intf)
 289 {
 290         struct smsusb_device_t *dev =
 291                 (struct smsusb_device_t *) usb_get_intfdata(intf);
 292
 293         if (dev) {
 294                 smsusb_stop_streaming(dev);
 295
 296                 /* unregister from smscore */
 297                 if (dev->coredev)
 298                         smscore_unregister_device(dev->coredev);
 299
 300                 kfree(dev);
 301
 302                 sms_info("device %p destroyed", dev);
 303         }
 304
 305         usb_set_intfdata(intf, NULL);
 306 }
 307
 308 static int smsusb_init_device(struct usb_interface *intf, int board_id)
 309 {
 310         struct smsdevice_params_t params;
 311         struct smsusb_device_t *dev;
 312         int i, rc;
 313
 314         /* create device object */
 315         dev = kzalloc(sizeof(struct smsusb_device_t), GFP_KERNEL);
 316         if (!dev) {
 317                 sms_err("kzalloc(sizeof(struct smsusb_device_t) failed");
 318                 return -ENOMEM;
 319         }
 320
 321         memset(&params, 0, sizeof(params));
 322         usb_set_intfdata(intf, dev);
 323         dev->udev = interface_to_usbdev(intf);
 324
 325         params.device_type = sms_get_board(board_id)->type;
 326
 327         switch (params.device_type) {
 328         case SMS_STELLAR:
 329                 dev->buffer_size = USB1_BUFFER_SIZE;
 330
 331                 params.setmode_handler = smsusb1_setmode;
 332                 params.detectmode_handler = smsusb1_detectmode;
 333                 break;
 334         default:
 335                 sms_err("Unspecified sms device type!");
 336                 /* fall-thru */
 337         case SMS_NOVA_A0:
 338         case SMS_NOVA_B0:
 339         case SMS_VEGA:
 340                 dev->buffer_size = USB2_BUFFER_SIZE;
 341                 dev->response_alignment =
 342                     le16_to_cpu(dev->udev->ep_in[1]->desc.wMaxPacketSize) -
 343                     sizeof(struct SmsMsgHdr_ST);
 344
 345                 params.flags |= SMS_DEVICE_FAMILY2;
 346                 break;
 347         }
 348
 349         params.device = &dev->udev->dev;
 350         params.buffer_size = dev->buffer_size;
 351         params.num_buffers = MAX_BUFFERS;
 352         params.sendrequest_handler = smsusb_sendrequest;
 353         params.context = dev;
 354         snprintf(params.devpath, sizeof(params.devpath),
 355                  "usb\\%d-%s", dev->udev->bus->busnum, dev->udev->devpath);
 356
 357         /* register in smscore */
 358         rc = smscore_register_device(&params, &dev->coredev);
 359         if (rc < 0) {
 360                 sms_err("smscore_register_device(...) failed, rc %d", rc);
 361                 smsusb_term_device(intf);
 362                 return rc;
 363         }
 364
 365         smscore_set_board_id(dev->coredev, board_id);
 366
 367         /* initialize urbs */
 368         for (i = 0; i < MAX_URBS; i++) {
 369                 dev->surbs[i].dev = dev;
 370                 usb_init_urb(&dev->surbs[i].urb);
 371         }
 372
 373         sms_info("smsusb_start_streaming(...).");
 374         rc = smsusb_start_streaming(dev);
 375         if (rc < 0) {
 376                 sms_err("smsusb_start_streaming(...) failed");
 377                 smsusb_term_device(intf);
 378                 return rc;
 379         }
 380
 381         rc = smscore_start_device(dev->coredev);
 382         if (rc < 0) {
 383                 sms_err("smscore_start_device(...) failed");
 384                 smsusb_term_device(intf);
 385                 return rc;
 386         }
 387
 388         sms_info("device %p created", dev);
 389
 390         return rc;
 391 }
 392
 393 static int __devinit smsusb_probe(struct usb_interface *intf,
 394                         const struct usb_device_id *id)
 395 {
 396         struct usb_device *udev = interface_to_usbdev(intf);
 397         char devpath[32];
 398         int i, rc;
 399
 400         rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
 401         rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
 402
 403         if (intf->num_altsetting > 0) {
 404                 rc = usb_set_interface(
 405                         udev, intf->cur_altsetting->desc.bInterfaceNumber, 0);
 406                 if (rc < 0) {
 407                         sms_err("usb_set_interface failed, rc %d", rc);
 408                         return rc;
 409                 }
 410         }
 411
 412         sms_info("smsusb_probe %d",
 413                intf->cur_altsetting->desc.bInterfaceNumber);
 414         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
 415                 sms_info("endpoint %d %02x %02x %d", i,
 416                        intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
 417                        intf->cur_altsetting->endpoint[i].desc.bmAttributes,
 418                        intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
 419
 420         if ((udev->actconfig->desc.bNumInterfaces == 2) &&
 421             (intf->cur_altsetting->desc.bInterfaceNumber == 0)) {
 422                 sms_err("rom interface 0 is not used");
 423                 return -ENODEV;
 424         }
 425
 426         if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
 427                 snprintf(devpath, sizeof(devpath), "usb\\%d-%s",
 428                          udev->bus->busnum, udev->devpath);
 429                 sms_info("stellar device was found.");
 430                 return smsusb1_load_firmware(
 431                                 udev, smscore_registry_getmode(devpath),
 432                                 id->driver_info);
 433         }
 434
 435         rc = smsusb_init_device(intf, id->driver_info);
 436         sms_info("rc %d", rc);
 437         sms_board_load_modules(id->driver_info);
 438         return rc;
 439 }
 440
 441 static void smsusb_disconnect(struct usb_interface *intf)
 442 {
 443         smsusb_term_device(intf);
 444 }
 445
 446 static int smsusb_suspend(struct usb_interface *intf, pm_message_t msg)
 447 {
 448         struct smsusb_device_t *dev =
 449                 (struct smsusb_device_t *)usb_get_intfdata(intf);
 450         printk(KERN_INFO "%s: Entering status %d.\n", __func__, msg.event);
 451         smsusb_stop_streaming(dev);
 452         return 0;
 453 }
 454
 455 static int smsusb_resume(struct usb_interface *intf)
 456 {
 457         int rc, i;
 458         struct smsusb_device_t *dev =
 459                 (struct smsusb_device_t *)usb_get_intfdata(intf);
 460         struct usb_device *udev = interface_to_usbdev(intf);
 461
 462         printk(KERN_INFO "%s: Entering.\n", __func__);
 463         usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
 464         usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
 465
 466         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
 467                 printk(KERN_INFO "endpoint %d %02x %02x %d\n", i,
 468                        intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
 469                        intf->cur_altsetting->endpoint[i].desc.bmAttributes,
 470                        intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
 471
 472         if (intf->num_altsetting > 0) {
 473                 rc = usb_set_interface(udev,
 474                                        intf->cur_altsetting->desc.
 475                                        bInterfaceNumber, 0);
 476                 if (rc < 0) {
 477                         printk(KERN_INFO "%s usb_set_interface failed, "
 478                                "rc %d\n", __func__, rc);
 479                         return rc;
 480                 }
 481         }
 482
 483         smsusb_start_streaming(dev);
 484         return 0;
 485 }
 486
 487 static const struct usb_device_id smsusb_id_table[] __devinitconst = {
 488         { USB_DEVICE(0x187f, 0x0010),
 489                 .driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
 490         { USB_DEVICE(0x187f, 0x0100),
 491                 .driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
 492         { USB_DEVICE(0x187f, 0x0200),
 493                 .driver_info = SMS1XXX_BOARD_SIANO_NOVA_A },
 494         { USB_DEVICE(0x187f, 0x0201),
 495                 .driver_info = SMS1XXX_BOARD_SIANO_NOVA_B },
 496         { USB_DEVICE(0x187f, 0x0300),
 497                 .driver_info = SMS1XXX_BOARD_SIANO_VEGA },
 498         { USB_DEVICE(0x2040, 0x1700),
 499                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_CATAMOUNT },
 500         { USB_DEVICE(0x2040, 0x1800),
 501                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_A },
 502         { USB_DEVICE(0x2040, 0x1801),
 503                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_B },
 504         { USB_DEVICE(0x2040, 0x2000),
 505                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 506         { USB_DEVICE(0x2040, 0x2009),
 507                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2 },
 508         { USB_DEVICE(0x2040, 0x200a),
 509                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 510         { USB_DEVICE(0x2040, 0x2010),
 511                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 512         { USB_DEVICE(0x2040, 0x2011),
 513                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 514         { USB_DEVICE(0x2040, 0x2019),
 515                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 516         { USB_DEVICE(0x2040, 0x5500),
 517                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 518         { USB_DEVICE(0x2040, 0x5510),
 519                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 520         { USB_DEVICE(0x2040, 0x5520),
 521                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 522         { USB_DEVICE(0x2040, 0x5530),
 523                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 524         { USB_DEVICE(0x2040, 0x5580),
 525                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 526         { USB_DEVICE(0x2040, 0x5590),
 527                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 528         { USB_DEVICE(0x187f, 0x0202),
 529                 .driver_info = SMS1XXX_BOARD_SIANO_NICE },
 530         { USB_DEVICE(0x187f, 0x0301),
 531                 .driver_info = SMS1XXX_BOARD_SIANO_VENICE },
 532         { USB_DEVICE(0x2040, 0xb900),
 533                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 534         { USB_DEVICE(0x2040, 0xb910),
 535                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 536         { USB_DEVICE(0x2040, 0xb980),
 537                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 538         { USB_DEVICE(0x2040, 0xb990),
 539                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 540         { USB_DEVICE(0x2040, 0xc000),
 541                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 542         { USB_DEVICE(0x2040, 0xc010),
 543                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 544         { USB_DEVICE(0x2040, 0xc080),
 545                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 546         { USB_DEVICE(0x2040, 0xc090),
 547                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 548         { } /* Terminating entry */
 549         };
 550
 551 MODULE_DEVICE_TABLE(usb, smsusb_id_table);
 552
 553 static struct usb_driver smsusb_driver = {
 554         .name                   = "smsusb",
 555         .probe                  = smsusb_probe,
 556         .disconnect             = smsusb_disconnect,
 557         .id_table               = smsusb_id_table,
 558
 559         .suspend                = smsusb_suspend,
 560         .resume                 = smsusb_resume,
 561 };
 562
 563 static int __init smsusb_module_init(void)
 564 {
 565         int rc = usb_register(&smsusb_driver);
 566         if (rc)
 567                 sms_err("usb_register failed. Error number %d", rc);
 568
 569         sms_debug("");
 570
 571         return rc;
 572 }
 573
 574 static void __exit smsusb_module_exit(void)
 575 {
 576         /* Regular USB Cleanup */
 577         usb_deregister(&smsusb_driver);
 578         sms_info("end");
 579 }
 580
 581 module_init(smsusb_module_init);
 582 module_exit(smsusb_module_exit);
 583
 584 MODULE_DESCRIPTION("Driver for the Siano SMS1xxx USB dongle");
 585 MODULE_AUTHOR("Siano Mobile Silicon, INC. (uris@siano-ms.com)");
 586 MODULE_LICENSE("GPL");