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 #include <linux/slab.h>
  27 #include <linux/module.h>
  28
  29 #include "smscoreapi.h"
  30 #include "sms-cards.h"
  31 #include "smsendian.h"
  32
  33 static int sms_dbg;
  34 module_param_named(debug, sms_dbg, int, 0644);
  35 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
  36
  37 #define USB1_BUFFER_SIZE                0x1000
  38 #define USB2_BUFFER_SIZE                0x4000
  39
  40 #define MAX_BUFFERS             50
  41 #define MAX_URBS                10
  42
  43 struct smsusb_device_t;
  44
  45 struct smsusb_urb_t {
  46         struct smscore_buffer_t *cb;
  47         struct smsusb_device_t  *dev;
  48
  49         struct urb urb;
  50 };
  51
  52 struct smsusb_device_t {
  53         struct usb_device *udev;
  54         struct smscore_device_t *coredev;
  55
  56         struct smsusb_urb_t     surbs[MAX_URBS];
  57
  58         int             response_alignment;
  59         int             buffer_size;
  60 };
  61
  62 static int smsusb_submit_urb(struct smsusb_device_t *dev,
  63                              struct smsusb_urb_t *surb);
  64
  65 static void smsusb_onresponse(struct urb *urb)
  66 {
  67         struct smsusb_urb_t *surb = (struct smsusb_urb_t *) urb->context;
  68         struct smsusb_device_t *dev = surb->dev;
  69
  70         if (urb->status == -ESHUTDOWN) {
  71                 sms_err("error, urb status %d (-ESHUTDOWN), %d bytes",
  72                         urb->status, urb->actual_length);
  73                 return;
  74         }
  75
  76         if ((urb->actual_length > 0) && (urb->status == 0)) {
  77                 struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *)surb->cb->p;
  78
  79                 smsendian_handle_message_header(phdr);
  80                 if (urb->actual_length >= phdr->msgLength) {
  81                         surb->cb->size = phdr->msgLength;
  82
  83                         if (dev->response_alignment &&
  84                             (phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG)) {
  85
  86                                 surb->cb->offset =
  87                                         dev->response_alignment +
  88                                         ((phdr->msgFlags >> 8) & 3);
  89
  90                                 /* sanity check */
  91                                 if (((int) phdr->msgLength +
  92                                      surb->cb->offset) > urb->actual_length) {
  93                                         sms_err("invalid response "
  94                                                 "msglen %d offset %d "
  95                                                 "size %d",
  96                                                 phdr->msgLength,
  97                                                 surb->cb->offset,
  98                                                 urb->actual_length);
  99                                         goto exit_and_resubmit;
 100                                 }
 101
 102                                 /* move buffer pointer and
 103                                  * copy header to its new location */
 104                                 memcpy((char *) phdr + surb->cb->offset,
 105                                        phdr, sizeof(struct SmsMsgHdr_ST));
 106                         } else
 107                                 surb->cb->offset = 0;
 108
 109                         smscore_onresponse(dev->coredev, surb->cb);
 110                         surb->cb = NULL;
 111                 } else {
 112                         sms_err("invalid response "
 113                                 "msglen %d actual %d",
 114                                 phdr->msgLength, urb->actual_length);
 115                 }
 116         } else
 117                 sms_err("error, urb status %d, %d bytes",
 118                         urb->status, urb->actual_length);
 119
 120
 121 exit_and_resubmit:
 122         smsusb_submit_urb(dev, surb);
 123 }
 124
 125 static int smsusb_submit_urb(struct smsusb_device_t *dev,
 126                              struct smsusb_urb_t *surb)
 127 {
 128         if (!surb->cb) {
 129                 surb->cb = smscore_getbuffer(dev->coredev);
 130                 if (!surb->cb) {
 131                         sms_err("smscore_getbuffer(...) returned NULL");
 132                         return -ENOMEM;
 133                 }
 134         }
 135
 136         usb_fill_bulk_urb(
 137                 &surb->urb,
 138                 dev->udev,
 139                 usb_rcvbulkpipe(dev->udev, 0x81),
 140                 surb->cb->p,
 141                 dev->buffer_size,
 142                 smsusb_onresponse,
 143                 surb
 144         );
 145         surb->urb.transfer_dma = surb->cb->phys;
 146         surb->urb.transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 147
 148         return usb_submit_urb(&surb->urb, GFP_ATOMIC);
 149 }
 150
 151 static void smsusb_stop_streaming(struct smsusb_device_t *dev)
 152 {
 153         int i;
 154
 155         for (i = 0; i < MAX_URBS; i++) {
 156                 usb_kill_urb(&dev->surbs[i].urb);
 157
 158                 if (dev->surbs[i].cb) {
 159                         smscore_putbuffer(dev->coredev, dev->surbs[i].cb);
 160                         dev->surbs[i].cb = NULL;
 161                 }
 162         }
 163 }
 164
 165 static int smsusb_start_streaming(struct smsusb_device_t *dev)
 166 {
 167         int i, rc;
 168
 169         for (i = 0; i < MAX_URBS; i++) {
 170                 rc = smsusb_submit_urb(dev, &dev->surbs[i]);
 171                 if (rc < 0) {
 172                         sms_err("smsusb_submit_urb(...) failed");
 173                         smsusb_stop_streaming(dev);
 174                         break;
 175                 }
 176         }
 177
 178         return rc;
 179 }
 180
 181 static int smsusb_sendrequest(void *context, void *buffer, size_t size)
 182 {
 183         struct smsusb_device_t *dev = (struct smsusb_device_t *) context;
 184         int dummy;
 185
 186         smsendian_handle_message_header((struct SmsMsgHdr_ST *)buffer);
 187         return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
 188                             buffer, size, &dummy, 1000);
 189 }
 190
 191 static char *smsusb1_fw_lkup[] = {
 192         "dvbt_stellar_usb.inp",
 193         "dvbh_stellar_usb.inp",
 194         "tdmb_stellar_usb.inp",
 195         "none",
 196         "dvbt_bda_stellar_usb.inp",
 197 };
 198
 199 static inline char *sms_get_fw_name(int mode, int board_id)
 200 {
 201         char **fw = sms_get_board(board_id)->fw;
 202         return (fw && fw[mode]) ? fw[mode] : smsusb1_fw_lkup[mode];
 203 }
 204
 205 static int smsusb1_load_firmware(struct usb_device *udev, int id, int board_id)
 206 {
 207         const struct firmware *fw;
 208         u8 *fw_buffer;
 209         int rc, dummy;
 210         char *fw_filename;
 211
 212         if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA) {
 213                 sms_err("invalid firmware id specified %d", id);
 214                 return -EINVAL;
 215         }
 216
 217         fw_filename = sms_get_fw_name(id, board_id);
 218
 219         rc = request_firmware(&fw, fw_filename, &udev->dev);
 220         if (rc < 0) {
 221                 sms_warn("failed to open \"%s\" mode %d, "
 222                          "trying again with default firmware", fw_filename, id);
 223
 224                 fw_filename = smsusb1_fw_lkup[id];
 225                 rc = request_firmware(&fw, fw_filename, &udev->dev);
 226                 if (rc < 0) {
 227                         sms_warn("failed to open \"%s\" mode %d",
 228                                  fw_filename, id);
 229
 230                         return rc;
 231                 }
 232         }
 233
 234         fw_buffer = kmalloc(fw->size, GFP_KERNEL);
 235         if (fw_buffer) {
 236                 memcpy(fw_buffer, fw->data, fw->size);
 237
 238                 rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2),
 239                                   fw_buffer, fw->size, &dummy, 1000);
 240
 241                 sms_info("sent %zd(%d) bytes, rc %d", fw->size, dummy, rc);
 242
 243                 kfree(fw_buffer);
 244         } else {
 245                 sms_err("failed to allocate firmware buffer");
 246                 rc = -ENOMEM;
 247         }
 248         sms_info("read FW %s, size=%zd", fw_filename, fw->size);
 249
 250         release_firmware(fw);
 251
 252         return rc;
 253 }
 254
 255 static void smsusb1_detectmode(void *context, int *mode)
 256 {
 257         char *product_string =
 258                 ((struct smsusb_device_t *) context)->udev->product;
 259
 260         *mode = DEVICE_MODE_NONE;
 261
 262         if (!product_string) {
 263                 product_string = "none";
 264                 sms_err("product string not found");
 265         } else if (strstr(product_string, "DVBH"))
 266                 *mode = 1;
 267         else if (strstr(product_string, "BDA"))
 268                 *mode = 4;
 269         else if (strstr(product_string, "DVBT"))
 270                 *mode = 0;
 271         else if (strstr(product_string, "TDMB"))
 272                 *mode = 2;
 273
 274         sms_info("%d \"%s\"", *mode, product_string);
 275 }
 276
 277 static int smsusb1_setmode(void *context, int mode)
 278 {
 279         struct SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK,
 280                              sizeof(struct SmsMsgHdr_ST), 0 };
 281
 282         if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) {
 283                 sms_err("invalid firmware id specified %d", mode);
 284                 return -EINVAL;
 285         }
 286
 287         return smsusb_sendrequest(context, &Msg, sizeof(Msg));
 288 }
 289
 290 static void smsusb_term_device(struct usb_interface *intf)
 291 {
 292         struct smsusb_device_t *dev = usb_get_intfdata(intf);
 293
 294         if (dev) {
 295                 smsusb_stop_streaming(dev);
 296
 297                 /* unregister from smscore */
 298                 if (dev->coredev)
 299                         smscore_unregister_device(dev->coredev);
 300
 301                 sms_info("device %p destroyed", dev);
 302                 kfree(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         usb_make_path(dev->udev, params.devpath, sizeof(params.devpath));
 355
 356         /* register in smscore */
 357         rc = smscore_register_device(&params, &dev->coredev);
 358         if (rc < 0) {
 359                 sms_err("smscore_register_device(...) failed, rc %d", rc);
 360                 smsusb_term_device(intf);
 361                 return rc;
 362         }
 363
 364         smscore_set_board_id(dev->coredev, board_id);
 365
 366         /* initialize urbs */
 367         for (i = 0; i < MAX_URBS; i++) {
 368                 dev->surbs[i].dev = dev;
 369                 usb_init_urb(&dev->surbs[i].urb);
 370         }
 371
 372         sms_info("smsusb_start_streaming(...).");
 373         rc = smsusb_start_streaming(dev);
 374         if (rc < 0) {
 375                 sms_err("smsusb_start_streaming(...) failed");
 376                 smsusb_term_device(intf);
 377                 return rc;
 378         }
 379
 380         rc = smscore_start_device(dev->coredev);
 381         if (rc < 0) {
 382                 sms_err("smscore_start_device(...) failed");
 383                 smsusb_term_device(intf);
 384                 return rc;
 385         }
 386
 387         sms_info("device %p created", dev);
 388
 389         return rc;
 390 }
 391
 392 static int __devinit smsusb_probe(struct usb_interface *intf,
 393                         const struct usb_device_id *id)
 394 {
 395         struct usb_device *udev = interface_to_usbdev(intf);
 396         char devpath[32];
 397         int i, rc;
 398
 399         rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
 400         rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
 401
 402         if (intf->num_altsetting > 0) {
 403                 rc = usb_set_interface(
 404                         udev, intf->cur_altsetting->desc.bInterfaceNumber, 0);
 405                 if (rc < 0) {
 406                         sms_err("usb_set_interface failed, rc %d", rc);
 407                         return rc;
 408                 }
 409         }
 410
 411         sms_info("smsusb_probe %d",
 412                intf->cur_altsetting->desc.bInterfaceNumber);
 413         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
 414                 sms_info("endpoint %d %02x %02x %d", i,
 415                        intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
 416                        intf->cur_altsetting->endpoint[i].desc.bmAttributes,
 417                        intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
 418
 419         if ((udev->actconfig->desc.bNumInterfaces == 2) &&
 420             (intf->cur_altsetting->desc.bInterfaceNumber == 0)) {
 421                 sms_err("rom interface 0 is not used");
 422                 return -ENODEV;
 423         }
 424
 425         if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
 426                 snprintf(devpath, sizeof(devpath), "usb\\%d-%s",
 427                          udev->bus->busnum, udev->devpath);
 428                 sms_info("stellar device was found.");
 429                 return smsusb1_load_firmware(
 430                                 udev, smscore_registry_getmode(devpath),
 431                                 id->driver_info);
 432         }
 433
 434         rc = smsusb_init_device(intf, id->driver_info);
 435         sms_info("rc %d", rc);
 436         sms_board_load_modules(id->driver_info);
 437         return rc;
 438 }
 439
 440 static void smsusb_disconnect(struct usb_interface *intf)
 441 {
 442         smsusb_term_device(intf);
 443 }
 444
 445 static int smsusb_suspend(struct usb_interface *intf, pm_message_t msg)
 446 {
 447         struct smsusb_device_t *dev = usb_get_intfdata(intf);
 448         printk(KERN_INFO "%s: Entering status %d.\n", __func__, msg.event);
 449         smsusb_stop_streaming(dev);
 450         return 0;
 451 }
 452
 453 static int smsusb_resume(struct usb_interface *intf)
 454 {
 455         int rc, i;
 456         struct smsusb_device_t *dev = usb_get_intfdata(intf);
 457         struct usb_device *udev = interface_to_usbdev(intf);
 458
 459         printk(KERN_INFO "%s: Entering.\n", __func__);
 460         usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
 461         usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));
 462
 463         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++)
 464                 printk(KERN_INFO "endpoint %d %02x %02x %d\n", i,
 465                        intf->cur_altsetting->endpoint[i].desc.bEndpointAddress,
 466                        intf->cur_altsetting->endpoint[i].desc.bmAttributes,
 467                        intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
 468
 469         if (intf->num_altsetting > 0) {
 470                 rc = usb_set_interface(udev,
 471                                        intf->cur_altsetting->desc.
 472                                        bInterfaceNumber, 0);
 473                 if (rc < 0) {
 474                         printk(KERN_INFO "%s usb_set_interface failed, "
 475                                "rc %d\n", __func__, rc);
 476                         return rc;
 477                 }
 478         }
 479
 480         smsusb_start_streaming(dev);
 481         return 0;
 482 }
 483
 484 static const struct usb_device_id smsusb_id_table[] __devinitconst = {
 485         { USB_DEVICE(0x187f, 0x0010),
 486                 .driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
 487         { USB_DEVICE(0x187f, 0x0100),
 488                 .driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
 489         { USB_DEVICE(0x187f, 0x0200),
 490                 .driver_info = SMS1XXX_BOARD_SIANO_NOVA_A },
 491         { USB_DEVICE(0x187f, 0x0201),
 492                 .driver_info = SMS1XXX_BOARD_SIANO_NOVA_B },
 493         { USB_DEVICE(0x187f, 0x0300),
 494                 .driver_info = SMS1XXX_BOARD_SIANO_VEGA },
 495         { USB_DEVICE(0x2040, 0x1700),
 496                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_CATAMOUNT },
 497         { USB_DEVICE(0x2040, 0x1800),
 498                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_A },
 499         { USB_DEVICE(0x2040, 0x1801),
 500                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_OKEMO_B },
 501         { USB_DEVICE(0x2040, 0x2000),
 502                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 503         { USB_DEVICE(0x2040, 0x2009),
 504                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2 },
 505         { USB_DEVICE(0x2040, 0x200a),
 506                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 507         { USB_DEVICE(0x2040, 0x2010),
 508                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 509         { USB_DEVICE(0x2040, 0x2011),
 510                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 511         { USB_DEVICE(0x2040, 0x2019),
 512                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD },
 513         { USB_DEVICE(0x2040, 0x5500),
 514                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 515         { USB_DEVICE(0x2040, 0x5510),
 516                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 517         { USB_DEVICE(0x2040, 0x5520),
 518                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 519         { USB_DEVICE(0x2040, 0x5530),
 520                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 521         { USB_DEVICE(0x2040, 0x5580),
 522                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 523         { USB_DEVICE(0x2040, 0x5590),
 524                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 525         { USB_DEVICE(0x187f, 0x0202),
 526                 .driver_info = SMS1XXX_BOARD_SIANO_NICE },
 527         { USB_DEVICE(0x187f, 0x0301),
 528                 .driver_info = SMS1XXX_BOARD_SIANO_VENICE },
 529         { USB_DEVICE(0x2040, 0xb900),
 530                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 531         { USB_DEVICE(0x2040, 0xb910),
 532                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 533         { USB_DEVICE(0x2040, 0xb980),
 534                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 535         { USB_DEVICE(0x2040, 0xb990),
 536                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 537         { USB_DEVICE(0x2040, 0xc000),
 538                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 539         { USB_DEVICE(0x2040, 0xc010),
 540                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 541         { USB_DEVICE(0x2040, 0xc080),
 542                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 543         { USB_DEVICE(0x2040, 0xc090),
 544                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 545         { USB_DEVICE(0x2040, 0xc0a0),
 546                 .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
 547         { } /* Terminating entry */
 548         };
 549
 550 MODULE_DEVICE_TABLE(usb, smsusb_id_table);
 551
 552 static struct usb_driver smsusb_driver = {
 553         .name                   = "smsusb",
 554         .probe                  = smsusb_probe,
 555         .disconnect             = smsusb_disconnect,
 556         .id_table               = smsusb_id_table,
 557
 558         .suspend                = smsusb_suspend,
 559         .resume                 = smsusb_resume,
 560 };
 561
 562 module_usb_driver(smsusb_driver);
 563
 564 MODULE_DESCRIPTION("Driver for the Siano SMS1xxx USB dongle");
 565 MODULE_AUTHOR("Siano Mobile Silicon, INC. (uris@siano-ms.com)");
 566 MODULE_LICENSE("GPL");