git.zerfleddert.de Git - usb-driver/blob - xpcu.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <string.h>
   5 #include <strings.h>
   6 #include <usb.h>
   7 #include <errno.h>
   8 #include <pthread.h>
   9 #include "usb-driver.h"
  10 #include "xpcu.h"
  11
  12 struct xpcu_s {
  13         struct usb_device *dev;
  14         usb_dev_handle *handle;
  15         int interface;
  16         int alternate;
  17         unsigned long card_type;
  18 };
  19
  20 struct xpcu_event_s {
  21         struct xpcu_s *xpcu;
  22         int count;
  23         int interrupt_count;
  24         pthread_mutex_t interrupt;
  25 };
  26
  27 static struct usb_bus *busses = NULL;
  28 static pthread_mutex_t dummy_interrupt = PTHREAD_MUTEX_INITIALIZER;
  29
  30 int xpcu_deviceinfo(struct usb_get_device_data *ugdd) {
  31         struct xpcu_s *xpcu = (struct xpcu_s*)ugdd->dwUniqueID;
  32         int i,j,k,l;
  33         int len = 0;
  34         unsigned char *buf = NULL;
  35         WDU_CONFIGURATION **pConfigs, **pActiveConfig;
  36         WDU_INTERFACE **pActiveInterface;
  37
  38         if (!xpcu)
  39                 return -ENODEV;
  40
  41         if (ugdd->dwBytes)
  42                 buf = ugdd->pBuf;
  43
  44         if (buf) {
  45                 struct usb_device_info *udi = (struct usb_device_info*)(buf+len);
  46
  47                 udi->Descriptor.bLength = sizeof(WDU_DEVICE_DESCRIPTOR);
  48                 udi->Descriptor.bDescriptorType = xpcu->dev->descriptor.bDescriptorType;
  49                 udi->Descriptor.bcdUSB = xpcu->dev->descriptor.bcdUSB;
  50                 udi->Descriptor.bDeviceClass = xpcu->dev->descriptor.bDeviceClass;
  51                 udi->Descriptor.bDeviceSubClass = xpcu->dev->descriptor.bDeviceSubClass;
  52                 udi->Descriptor.bDeviceProtocol = xpcu->dev->descriptor.bDeviceProtocol;
  53                 udi->Descriptor.bMaxPacketSize0 = xpcu->dev->descriptor.bMaxPacketSize0;
  54                 udi->Descriptor.idVendor = xpcu->dev->descriptor.idVendor;
  55                 udi->Descriptor.idProduct = xpcu->dev->descriptor.idProduct;
  56                 udi->Descriptor.bcdDevice = xpcu->dev->descriptor.bcdDevice;
  57                 udi->Descriptor.iManufacturer = xpcu->dev->descriptor.iManufacturer;
  58                 udi->Descriptor.iProduct = xpcu->dev->descriptor.iProduct;
  59                 udi->Descriptor.iSerialNumber = xpcu->dev->descriptor.iSerialNumber;
  60                 udi->Descriptor.bNumConfigurations = xpcu->dev->descriptor.bNumConfigurations;
  61
  62                 /* TODO: Fix Pipe0! */
  63                 udi->Pipe0.dwNumber = 0x00;
  64                 udi->Pipe0.dwMaximumPacketSize = xpcu->dev->descriptor.bMaxPacketSize0;
  65                 udi->Pipe0.type = 0;
  66                 udi->Pipe0.direction = WDU_DIR_IN_OUT;
  67                 udi->Pipe0.dwInterval = 0;
  68
  69                 pConfigs = &(udi->pConfigs);
  70                 pActiveConfig = &(udi->pActiveConfig);
  71                 pActiveInterface = &(udi->pActiveInterface[0]);
  72         }
  73
  74         len = sizeof(struct usb_device_info);
  75
  76         for (i=0; i<xpcu->dev->descriptor.bNumConfigurations; i++)
  77         {
  78                 struct usb_config_descriptor *conf_desc = &xpcu->dev->config[i];
  79                 WDU_INTERFACE **pInterfaces;
  80                 WDU_ALTERNATE_SETTING **pAlternateSettings[conf_desc->bNumInterfaces];
  81                 WDU_ALTERNATE_SETTING **pActiveAltSetting[conf_desc->bNumInterfaces];
  82
  83                 if (buf) {
  84                         WDU_CONFIGURATION *cfg = (WDU_CONFIGURATION*)(buf+len);
  85
  86                         *pConfigs = cfg;
  87                         *pActiveConfig = cfg;
  88
  89                         cfg->Descriptor.bLength = conf_desc->bLength;
  90                         cfg->Descriptor.bDescriptorType = conf_desc->bDescriptorType;
  91                         cfg->Descriptor.wTotalLength = conf_desc->wTotalLength;
  92                         cfg->Descriptor.bNumInterfaces = conf_desc->bNumInterfaces;
  93                         cfg->Descriptor.bConfigurationValue = conf_desc->bConfigurationValue;
  94                         cfg->Descriptor.iConfiguration = conf_desc->iConfiguration;
  95                         cfg->Descriptor.bmAttributes = conf_desc->bmAttributes;
  96                         cfg->Descriptor.MaxPower = conf_desc->MaxPower;
  97
  98                         cfg->dwNumInterfaces = conf_desc->bNumInterfaces;
  99
 100                         pInterfaces = &(cfg->pInterfaces);
 101                 }
 102                 len += sizeof(WDU_CONFIGURATION);
 103
 104                 if (buf) {
 105                         *pInterfaces = (WDU_INTERFACE*)(buf+len);
 106                         for (j=0; j<conf_desc->bNumInterfaces; j++) {
 107                                 WDU_INTERFACE *iface = (WDU_INTERFACE*)(buf+len);
 108
 109                                 pActiveInterface[j] = iface;
 110
 111                                 pAlternateSettings[j] = &(iface->pAlternateSettings);
 112                                 iface->dwNumAltSettings = xpcu->dev->config[i].interface[j].num_altsetting;
 113                                 pActiveAltSetting[j] = &(iface->pActiveAltSetting);
 114
 115                                 len += sizeof(WDU_INTERFACE);
 116                         }
 117                 } else {
 118                         len += sizeof(WDU_INTERFACE) * conf_desc->bNumInterfaces;
 119                 }
 120
 121                 for (j=0; j<conf_desc->bNumInterfaces; j++)
 122                 {
 123                         struct usb_interface *interface = &xpcu->dev->config[i].interface[j];
 124
 125                         if (buf) {
 126                                 *pAlternateSettings[j] = (WDU_ALTERNATE_SETTING*)(buf+len);
 127                                 /* FIXME: */
 128                                 *pActiveAltSetting[j] = (WDU_ALTERNATE_SETTING*)(buf+len);
 129                         }
 130
 131                         for(k=0; k<interface->num_altsetting; k++)
 132                         {
 133                                 unsigned char bNumEndpoints = interface->altsetting[k].bNumEndpoints;
 134                                 WDU_ENDPOINT_DESCRIPTOR **pEndpointDescriptors;
 135                                 WDU_PIPE_INFO **pPipes;
 136
 137                                 if (buf) {
 138                                         WDU_ALTERNATE_SETTING *altset = (WDU_ALTERNATE_SETTING*)(buf+len);
 139
 140                                         altset->Descriptor.bLength = interface->altsetting[k].bLength;
 141                                         altset->Descriptor.bDescriptorType = interface->altsetting[k].bDescriptorType;
 142                                         altset->Descriptor.bInterfaceNumber = interface->altsetting[k].bInterfaceNumber;
 143                                         altset->Descriptor.bAlternateSetting = interface->altsetting[k].bAlternateSetting;
 144                                         altset->Descriptor.bNumEndpoints = interface->altsetting[k].bNumEndpoints;
 145                                         altset->Descriptor.bInterfaceClass = interface->altsetting[k].bInterfaceClass;
 146                                         altset->Descriptor.bInterfaceSubClass = interface->altsetting[k].bInterfaceSubClass;
 147                                         altset->Descriptor.bInterfaceProtocol = interface->altsetting[k].bInterfaceProtocol;
 148                                         altset->Descriptor.iInterface = interface->altsetting[k].iInterface;
 149                                         pEndpointDescriptors = &(altset->pEndpointDescriptors);
 150                                         pPipes = &(altset->pPipes);
 151
 152                                 }
 153                                 len +=sizeof(WDU_ALTERNATE_SETTING);
 154
 155                                 if (buf) {
 156                                         *pEndpointDescriptors = (WDU_ENDPOINT_DESCRIPTOR*)(buf+len);
 157                                         for (l = 0; l < bNumEndpoints; l++) {
 158                                                 WDU_ENDPOINT_DESCRIPTOR *ed = (WDU_ENDPOINT_DESCRIPTOR*)(buf+len);
 159
 160                                                 ed->bLength = interface->altsetting[k].endpoint[l].bLength;
 161                                                 ed->bDescriptorType = interface->altsetting[k].endpoint[l].bDescriptorType;
 162                                                 ed->bEndpointAddress = interface->altsetting[k].endpoint[l].bEndpointAddress;
 163                                                 ed->bmAttributes = interface->altsetting[k].endpoint[l].bmAttributes;
 164                                                 ed->wMaxPacketSize = interface->altsetting[k].endpoint[l].wMaxPacketSize;
 165                                                 ed->bInterval = interface->altsetting[k].endpoint[l].bInterval;
 166
 167                                                 len += sizeof(WDU_ENDPOINT_DESCRIPTOR);
 168                                         }
 169
 170                                         *pPipes = (WDU_PIPE_INFO*)(buf+len);
 171                                         for (l = 0; l < bNumEndpoints; l++) {
 172                                                 WDU_PIPE_INFO *pi = (WDU_PIPE_INFO*)(buf+len);
 173
 174                                                 pi->dwNumber = interface->altsetting[k].endpoint[l].bEndpointAddress;
 175                                                 pi->dwMaximumPacketSize = WDU_GET_MAX_PACKET_SIZE(interface->altsetting[k].endpoint[l].wMaxPacketSize);
 176                                                 pi->type = interface->altsetting[k].endpoint[l].bmAttributes & USB_ENDPOINT_TYPE_MASK;
 177                                                 if (pi->type == PIPE_TYPE_CONTROL)
 178                                                         pi->direction = WDU_DIR_IN_OUT;
 179                                                 else
 180                                                 {
 181                                                         pi->direction = interface->altsetting[k].endpoint[l].bEndpointAddress & USB_ENDPOINT_DIR_MASK ?  WDU_DIR_IN : WDU_DIR_OUT;
 182                                                 }
 183
 184                                                 pi->dwInterval = interface->altsetting[k].endpoint[l].bInterval;
 185
 186                                                 len += sizeof(WDU_PIPE_INFO);
 187                                         }
 188                                 } else {
 189                                         len +=(sizeof(WDU_ENDPOINT_DESCRIPTOR)+sizeof(WDU_PIPE_INFO))*bNumEndpoints;
 190                                 }
 191                         }
 192                 }
 193         }
 194
 195         ugdd->dwBytes = len;
 196
 197         return 0;
 198 }
 199
 200 static int xpcu_claim(struct xpcu_s *xpcu, int claim) {
 201         int ret = 0;
 202         static int claimed = 0;
 203
 204         if (xpcu->interface < 0)
 205                 return -1;
 206
 207         if (claim == XPCU_CLAIM) {
 208                 if (claimed)
 209                         return 0;
 210
 211                 ret = usb_claim_interface(xpcu->handle, xpcu->interface);
 212                 if (!ret) {
 213                         claimed = 1;
 214                         ret = usb_set_altinterface(xpcu->handle, xpcu->alternate);
 215                         if (ret)
 216                                 fprintf(stderr, "usb_set_altinterface: %d\n", ret);
 217                 } else {
 218                         fprintf(stderr, "usb_claim_interface: %d -> %d (%s)\n",
 219                                         xpcu->interface, ret, usb_strerror());
 220                 }
 221         } else {
 222                 if (!claimed)
 223                         return 0;
 224
 225                 ret = usb_release_interface(xpcu->handle, xpcu->interface);
 226                 if (!ret)
 227                         claimed = 0;
 228         }
 229
 230         return ret;
 231 }
 232
 233 int xpcu_transfer(struct usb_transfer *ut) {
 234         struct xpcu_s *xpcu = (struct xpcu_s*)ut->dwUniqueID;
 235         int ret = 0;
 236
 237         if (!xpcu)
 238                 return -ENODEV;
 239
 240         xpcu_claim(xpcu, XPCU_CLAIM);
 241         /* http://www.jungo.com/support/documentation/windriver/802/wdusb_man_mhtml/node55.html#SECTION001213000000000000000 */
 242         if (ut->dwPipeNum == 0) { /* control pipe */
 243                 int requesttype, request, value, index, size;
 244                 requesttype = ut->SetupPacket[0];
 245                 request = ut->SetupPacket[1];
 246                 value = ut->SetupPacket[2] | (ut->SetupPacket[3] << 8);
 247                 index = ut->SetupPacket[4] | (ut->SetupPacket[5] << 8);
 248                 size = ut->SetupPacket[6] | (ut->SetupPacket[7] << 8);
 249                 DPRINTF("-> requesttype: %x, request: %x, value: %u, index: %u, size: %u\n", requesttype, request, value, index, size);
 250                 ret = usb_control_msg(xpcu->handle, requesttype, request, value, index, ut->pBuffer, size, ut->dwTimeout);
 251         } else {
 252                 if (ut->fRead) {
 253                         ret = usb_bulk_read(xpcu->handle, ut->dwPipeNum, ut->pBuffer, ut->dwBufferSize, ut->dwTimeout);
 254                 } else {
 255                         ret = usb_bulk_write(xpcu->handle, ut->dwPipeNum, ut->pBuffer, ut->dwBufferSize, ut->dwTimeout);
 256                 }
 257                 xpcu_claim(xpcu, XPCU_RELEASE);
 258         }
 259
 260         if (ret < 0) {
 261                 fprintf(stderr, "usb_transfer: %d (%s)\n", ret, usb_strerror());
 262         } else {
 263                 ut->dwBytesTransferred = ret;
 264                 ret = 0;
 265         }
 266
 267         return ret;
 268 }
 269
 270 int xpcu_set_interface(struct usb_set_interface *usi) {
 271         struct xpcu_s *xpcu = (struct xpcu_s*)usi->dwUniqueID;
 272
 273         if (!xpcu)
 274                 return -ENODEV;
 275
 276         if (xpcu->dev) {
 277                 if (!xpcu->handle) {
 278                         xpcu->handle = usb_open(xpcu->dev);
 279 #ifndef NO_USB_RESET
 280                         if (xpcu->handle) {
 281                                 usb_reset(xpcu->handle);
 282                                 xpcu->handle = usb_open(xpcu->dev);
 283                         }
 284 #endif
 285                 }
 286
 287                 xpcu->interface = xpcu->dev->config[0].interface[usi->dwInterfaceNum].altsetting[usi->dwAlternateSetting].bInterfaceNumber;
 288                 xpcu->alternate = usi->dwAlternateSetting;
 289         }
 290
 291         return 0;
 292 }
 293
 294 static void xpcu_init(void) {
 295         if (busses)
 296                 return;
 297
 298         usb_init();
 299         usb_find_busses();
 300         usb_find_devices();
 301
 302         busses = usb_get_busses();
 303
 304         pthread_mutex_init(&dummy_interrupt, NULL);
 305 }
 306
 307
 308 int xpcu_find(struct event *e) {
 309         struct xpcu_event_s *xpcu_event = NULL;
 310         struct xpcu_s *xpcu = NULL;
 311         char* devpos;
 312         struct usb_bus *bus;
 313         int busnum = -1, devnum = -1;
 314         int i;
 315
 316         e->handle = (unsigned long)NULL;
 317
 318         xpcu_init();
 319
 320         xpcu_event = malloc(sizeof(struct xpcu_event_s));
 321         if (!xpcu_event)
 322                 return -ENOMEM;
 323
 324         bzero(xpcu_event, sizeof(struct xpcu_event_s));
 325         xpcu_event->xpcu = NULL;
 326         xpcu_event->count = 0;
 327         xpcu_event->interrupt_count = 0;
 328         pthread_mutex_init(&xpcu_event->interrupt, NULL);
 329
 330         devpos = getenv("XILINX_USB_DEV");
 331         if (devpos != NULL) {
 332                 int j;
 333                 char *devstr = NULL, *remainder;
 334
 335                 DPRINTF("XILINX_USB_DEV=%s\n", devpos);
 336
 337                 for (j = 0; j < strlen(devpos) && devpos[j] != 0; j++) {
 338                         if (devpos[j] == ':') {
 339                                 devpos[j] = 0;
 340                                 devstr = &(devpos[j+1]);
 341                         }
 342                 }
 343
 344                 if (devstr && strlen(devstr) > 0) {
 345                         busnum = strtol(devpos, &remainder, 10);
 346                         if (devpos == remainder) {
 347                                 busnum = -1;
 348                         } else {
 349                                 devnum = strtol(devstr, &remainder, 10);
 350                                 if (devstr == remainder) {
 351                                         busnum = -1;
 352                                         devnum = -1;
 353                                 } else {
 354                                         fprintf(stderr,"Using XILINX platform cable USB at %03d:%03d\n",
 355                                                         busnum, devnum);
 356                                 }
 357                         }
 358                 }
 359         }
 360
 361         for (i = 0; i < e->dwNumMatchTables; i++) {
 362
 363                 DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
 364                                 e->matchTables[i].VendorId,
 365                                 e->matchTables[i].ProductId,
 366                                 e->matchTables[i].bDeviceClass,
 367                                 e->matchTables[i].bDeviceSubClass,
 368                                 e->matchTables[i].bInterfaceClass,
 369                                 e->matchTables[i].bInterfaceSubClass,
 370                                 e->matchTables[i].bInterfaceProtocol);
 371
 372                 for (bus = busses; bus; bus = bus->next) {
 373                         struct usb_device *dev;
 374
 375                         if ((devnum != -1) && (strtol(bus->dirname, NULL, 10) != busnum))
 376                                 continue;
 377
 378                         for (dev = bus->devices; dev; dev = dev->next) {
 379                                 struct usb_device_descriptor *desc = &(dev->descriptor);
 380
 381                                 if((desc->idVendor == e->matchTables[i].VendorId) &&
 382                                                 (desc->idProduct == e->matchTables[i].ProductId) &&
 383                                                 (desc->bDeviceClass == e->matchTables[i].bDeviceClass) &&
 384                                                 (desc->bDeviceSubClass == e->matchTables[i].bDeviceSubClass) &&
 385                                                 ((devnum == -1) || (strtol(dev->filename, NULL, 10) == devnum)) ) {
 386                                         int ac;
 387                                         for (ac = 0; ac < desc->bNumConfigurations; ac++) {
 388                                                 struct usb_interface *interface = dev->config[ac].interface;
 389                                                 int ai;
 390
 391                                                 for (ai = 0; ai < interface->num_altsetting; ai++) {
 392
 393                                                         DPRINTF("intclass: %x, intsubclass: %x, intproto: %x\n",
 394                                                                         interface->altsetting[i].bInterfaceClass,
 395                                                                         interface->altsetting[i].bInterfaceSubClass,
 396                                                                         interface->altsetting[i].bInterfaceProtocol);
 397
 398                                                         if ((interface->altsetting[ai].bInterfaceSubClass == e->matchTables[i].bInterfaceSubClass) &&
 399                                                                         (interface->altsetting[ai].bInterfaceProtocol == e->matchTables[i].bInterfaceProtocol)){
 400                                                                 int n = xpcu_event->count;
 401
 402                                                                 /* TODO: check interfaceClass! */
 403                                                                 DPRINTF("found device with libusb\n");
 404
 405                                                                 xpcu = realloc(xpcu, sizeof(struct xpcu_s) * (++xpcu_event->count));
 406                                                                 if (!xpcu) {
 407                                                                         free(xpcu_event);
 408                                                                         return -ENOMEM;
 409                                                                 }
 410
 411                                                                 bzero(&(xpcu[n]), sizeof(struct xpcu_s));
 412                                                                 xpcu[n].interface = -1;
 413                                                                 xpcu[n].alternate = -1;
 414                                                                 xpcu[n].dev = dev;
 415                                                                 xpcu[n].card_type = e->dwCardType;
 416
 417                                                                 xpcu_event->xpcu = xpcu;
 418                                                         }
 419                                                 }
 420                                         }
 421                                 }
 422                         }
 423                 }
 424         }
 425
 426         e->handle = (unsigned long)xpcu_event;
 427
 428         return 0;
 429 }
 430
 431 int xpcu_found(struct event *e) {
 432         struct xpcu_event_s *xpcu_event = (struct xpcu_event_s*)e->handle;
 433         struct xpcu_s *xpcu = NULL;
 434
 435         if (xpcu_event && xpcu_event->count && (xpcu_event->interrupt_count <= xpcu_event->count))
 436                 xpcu = &(xpcu_event->xpcu[xpcu_event->interrupt_count-1]);
 437
 438         if (xpcu && xpcu->dev) {
 439                 struct usb_interface *interface = xpcu->dev->config->interface;
 440
 441                 e->dwCardType = xpcu->card_type;
 442                 e->dwAction = 1;
 443                 e->dwEventId = 1;
 444                 e->u.Usb.dwUniqueID = (unsigned long)xpcu;
 445                 e->matchTables[0].VendorId = xpcu->dev->descriptor.idVendor;
 446                 e->matchTables[0].ProductId = xpcu->dev->descriptor.idProduct;
 447                 e->matchTables[0].bDeviceClass = xpcu->dev->descriptor.bDeviceClass;
 448                 e->matchTables[0].bDeviceSubClass = xpcu->dev->descriptor.bDeviceSubClass;
 449                 e->matchTables[0].bInterfaceClass = interface->altsetting[0].bInterfaceClass;
 450                 e->matchTables[0].bInterfaceSubClass = interface->altsetting[0].bInterfaceSubClass;
 451                 e->matchTables[0].bInterfaceProtocol = interface->altsetting[0].bInterfaceProtocol;
 452         }
 453
 454         return 0;
 455 }
 456
 457 int xpcu_close(struct event *e) {
 458         struct xpcu_event_s *xpcu_event = (struct xpcu_event_s*)e->handle;
 459
 460         if (!xpcu_event)
 461                 return -ENODEV;
 462
 463         if(xpcu_event) {
 464                 struct  xpcu_s *xpcu;
 465                 int i;
 466
 467                 for (i = 0; i < xpcu_event->count; i++) {
 468                         xpcu = &(xpcu_event->xpcu[i]);
 469                         if (xpcu->handle) {
 470                                 xpcu_claim(xpcu, XPCU_RELEASE);
 471                                 usb_close(xpcu->handle);
 472                         }
 473                 }
 474
 475                 if (xpcu_event->xpcu)
 476                         free(xpcu_event->xpcu);
 477
 478                 busses = NULL;
 479                 free(xpcu_event);
 480         }
 481
 482         return 0;
 483 }
 484
 485 int xpcu_int_state(struct interrupt *it, int enable) {
 486         struct xpcu_event_s *xpcu_event = (struct xpcu_event_s*)it->hInterrupt;
 487         pthread_mutex_t *interrupt = &dummy_interrupt;
 488
 489         if (xpcu_event)
 490                 interrupt = &xpcu_event->interrupt;
 491
 492         if (enable == ENABLE_INTERRUPT) {
 493                 it->fEnableOk = 1;
 494                 it->fStopped = 0;
 495                 it->dwCounter = 0;
 496                 pthread_mutex_trylock(interrupt);
 497         } else {
 498                 it->dwCounter = 0;
 499                 it->fStopped = 1;
 500                 if (pthread_mutex_trylock(interrupt) == EBUSY)
 501                         pthread_mutex_unlock(interrupt);
 502         }
 503
 504         return 0;
 505 }
 506
 507 int xpcu_int_wait(struct interrupt *it) {
 508         struct xpcu_event_s *xpcu_event = (struct xpcu_event_s*)it->hInterrupt;
 509
 510         if (xpcu_event) {
 511                 if (it->dwCounter < xpcu_event->count) {
 512                         it->dwCounter++;
 513                 } else {
 514                         pthread_mutex_lock(&xpcu_event->interrupt);
 515                         pthread_mutex_unlock(&xpcu_event->interrupt);
 516                 }
 517                 xpcu_event->interrupt_count++;
 518         } else {
 519                 pthread_mutex_lock(&dummy_interrupt);
 520                 pthread_mutex_unlock(&dummy_interrupt);
 521         }
 522
 523         return 0;
 524 }