drivers/staging/bcm/InterfaceInit.c

   1 #include "headers.h"
   2
   3 static struct usb_device_id InterfaceUsbtable[] = {
   4         { USB_DEVICE(BCM_USB_VENDOR_ID_T3, BCM_USB_PRODUCT_ID_T3) },
   5         { USB_DEVICE(BCM_USB_VENDOR_ID_T3, BCM_USB_PRODUCT_ID_T3B) },
   6         { USB_DEVICE(BCM_USB_VENDOR_ID_T3, BCM_USB_PRODUCT_ID_T3L) },
   7         { USB_DEVICE(BCM_USB_VENDOR_ID_T3, BCM_USB_PRODUCT_ID_SYM) },
   8         { USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_226) },
   9         { USB_DEVICE(BCM_USB_VENDOR_ID_FOXCONN, BCM_USB_PRODUCT_ID_1901) },
  10         { USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_ZTE_TU25) },
  11         { USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_ZTE_226) },
  12         { USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_ZTE_326) },
  13         { }
  14 };
  15 MODULE_DEVICE_TABLE(usb, InterfaceUsbtable);
  16
  17 static int debug = -1;
  18 module_param(debug, uint, 0600);
  19 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
  20
  21 static const u32 default_msg =
  22         NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
  23         | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
  24         | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
  25
  26 static int InterfaceAdapterInit(struct bcm_interface_adapter *Adapter);
  27
  28 static void InterfaceAdapterFree(struct bcm_interface_adapter *psIntfAdapter)
  29 {
  30         int i = 0;
  31
  32         /* Wake up the wait_queue... */
  33         if (psIntfAdapter->psAdapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
  34                 psIntfAdapter->psAdapter->DriverState = DRIVER_HALT;
  35                 wake_up(&psIntfAdapter->psAdapter->LEDInfo.notify_led_event);
  36         }
  37         reset_card_proc(psIntfAdapter->psAdapter);
  38
  39         /*
  40          * worst case time taken by the RDM/WRM will be 5 sec. will check after every 100 ms
  41          * to accertain the device is not being accessed. After this No RDM/WRM should be made.
  42          */
  43         while (psIntfAdapter->psAdapter->DeviceAccess) {
  44                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
  45                         "Device is being accessed.\n");
  46                 msleep(100);
  47         }
  48         /* Free interrupt URB */
  49         /* psIntfAdapter->psAdapter->device_removed = TRUE; */
  50         usb_free_urb(psIntfAdapter->psInterruptUrb);
  51
  52         /* Free transmit URBs */
  53         for (i = 0; i < MAXIMUM_USB_TCB; i++) {
  54                 if (psIntfAdapter->asUsbTcb[i].urb  != NULL) {
  55                         usb_free_urb(psIntfAdapter->asUsbTcb[i].urb);
  56                         psIntfAdapter->asUsbTcb[i].urb = NULL;
  57                 }
  58         }
  59         /* Free receive URB and buffers */
  60         for (i = 0; i < MAXIMUM_USB_RCB; i++) {
  61                 if (psIntfAdapter->asUsbRcb[i].urb != NULL) {
  62                         kfree(psIntfAdapter->asUsbRcb[i].urb->transfer_buffer);
  63                         usb_free_urb(psIntfAdapter->asUsbRcb[i].urb);
  64                         psIntfAdapter->asUsbRcb[i].urb = NULL;
  65                 }
  66         }
  67         AdapterFree(psIntfAdapter->psAdapter);
  68 }
  69
  70 static void ConfigureEndPointTypesThroughEEPROM(struct bcm_mini_adapter *Adapter)
  71 {
  72         u32 ulReg;
  73         int bytes;
  74
  75         /* Program EP2 MAX_PKT_SIZE */
  76         ulReg = ntohl(EP2_MPS_REG);
  77         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x128, 4, TRUE);
  78         ulReg = ntohl(EP2_MPS);
  79         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x12C, 4, TRUE);
  80
  81         ulReg = ntohl(EP2_CFG_REG);
  82         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x132, 4, TRUE);
  83         if (((struct bcm_interface_adapter *)(Adapter->pvInterfaceAdapter))->bHighSpeedDevice == TRUE) {
  84                 ulReg = ntohl(EP2_CFG_INT);
  85                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x136, 4, TRUE);
  86         } else {
  87                 /* USE BULK EP as TX in FS mode. */
  88                 ulReg = ntohl(EP2_CFG_BULK);
  89                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x136, 4, TRUE);
  90         }
  91
  92         /* Program EP4 MAX_PKT_SIZE. */
  93         ulReg = ntohl(EP4_MPS_REG);
  94         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x13C, 4, TRUE);
  95         ulReg = ntohl(EP4_MPS);
  96         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x140, 4, TRUE);
  97
  98         /* Program TX EP as interrupt(Alternate Setting) */
  99         bytes = rdmalt(Adapter, 0x0F0110F8, &ulReg, sizeof(u32));
 100         if (bytes < 0) {
 101                 BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 102                         "reading of Tx EP failed\n");
 103                 return;
 104         }
 105         ulReg |= 0x6;
 106
 107         ulReg = ntohl(ulReg);
 108         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1CC, 4, TRUE);
 109
 110         ulReg = ntohl(EP4_CFG_REG);
 111         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1C8, 4, TRUE);
 112         /* Program ISOCHRONOUS EP size to zero. */
 113         ulReg = ntohl(ISO_MPS_REG);
 114         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1D2, 4, TRUE);
 115         ulReg = ntohl(ISO_MPS);
 116         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1D6, 4, TRUE);
 117
 118         /*
 119          * Update EEPROM Version.
 120          * Read 4 bytes from 508 and modify 511 and 510.
 121          */
 122         ReadBeceemEEPROM(Adapter, 0x1FC, &ulReg);
 123         ulReg &= 0x0101FFFF;
 124         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1FC, 4, TRUE);
 125
 126         /* Update length field if required. Also make the string NULL terminated. */
 127
 128         ReadBeceemEEPROM(Adapter, 0xA8, &ulReg);
 129         if ((ulReg&0x00FF0000)>>16 > 0x30) {
 130                 ulReg = (ulReg&0xFF00FFFF)|(0x30<<16);
 131                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0xA8, 4, TRUE);
 132         }
 133         ReadBeceemEEPROM(Adapter, 0x148, &ulReg);
 134         if ((ulReg&0x00FF0000)>>16 > 0x30) {
 135                 ulReg = (ulReg&0xFF00FFFF)|(0x30<<16);
 136                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x148, 4, TRUE);
 137         }
 138         ulReg = 0;
 139         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x122, 4, TRUE);
 140         ulReg = 0;
 141         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1C2, 4, TRUE);
 142 }
 143
 144 static int usbbcm_device_probe(struct usb_interface *intf, const struct usb_device_id *id)
 145 {
 146         struct usb_device *udev = interface_to_usbdev(intf);
 147         int retval;
 148         struct bcm_mini_adapter *psAdapter;
 149         struct bcm_interface_adapter *psIntfAdapter;
 150         struct net_device *ndev;
 151
 152         /* Reserve one extra queue for the bit-bucket */
 153         ndev = alloc_etherdev_mq(sizeof(struct bcm_mini_adapter), NO_OF_QUEUES+1);
 154         if (ndev == NULL) {
 155                 dev_err(&udev->dev, DRV_NAME ": no memory for device\n");
 156                 return -ENOMEM;
 157         }
 158
 159         SET_NETDEV_DEV(ndev, &intf->dev);
 160
 161         psAdapter = netdev_priv(ndev);
 162         psAdapter->dev = ndev;
 163         psAdapter->msg_enable = netif_msg_init(debug, default_msg);
 164
 165         /* Init default driver debug state */
 166
 167         psAdapter->stDebugState.debug_level = DBG_LVL_CURR;
 168         psAdapter->stDebugState.type = DBG_TYPE_INITEXIT;
 169
 170         /*
 171          * Technically, one can start using BCM_DEBUG_PRINT after this point.
 172          * However, realize that by default the Type/Subtype bitmaps are all zero now;
 173          * so no prints will actually appear until the TestApp turns on debug paths via
 174          * the ioctl(); so practically speaking, in early init, no logging happens.
 175          *
 176          * A solution (used below): we explicitly set the bitmaps to 1 for Type=DBG_TYPE_INITEXIT
 177          * and ALL subtype's of the same. Now all bcm debug statements get logged, enabling debug
 178          * during early init.
 179          * Further, we turn this OFF once init_module() completes.
 180          */
 181
 182         psAdapter->stDebugState.subtype[DBG_TYPE_INITEXIT] = 0xff;
 183         BCM_SHOW_DEBUG_BITMAP(psAdapter);
 184
 185         retval = InitAdapter(psAdapter);
 186         if (retval) {
 187                 dev_err(&udev->dev, DRV_NAME ": InitAdapter Failed\n");
 188                 AdapterFree(psAdapter);
 189                 return retval;
 190         }
 191
 192         /* Allocate interface adapter structure */
 193         psIntfAdapter = kzalloc(sizeof(struct bcm_interface_adapter),
 194                                 GFP_KERNEL);
 195         if (psIntfAdapter == NULL) {
 196                 AdapterFree(psAdapter);
 197                 return -ENOMEM;
 198         }
 199
 200         psAdapter->pvInterfaceAdapter = psIntfAdapter;
 201         psIntfAdapter->psAdapter = psAdapter;
 202
 203         /* Store usb interface in Interface Adapter */
 204         psIntfAdapter->interface = intf;
 205         usb_set_intfdata(intf, psIntfAdapter);
 206
 207         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 208                 "psIntfAdapter 0x%p\n", psIntfAdapter);
 209         retval = InterfaceAdapterInit(psIntfAdapter);
 210         if (retval) {
 211                 /* If the Firmware/Cfg File is not present
 212                  * then return success, let the application
 213                  * download the files.
 214                  */
 215                 if (-ENOENT == retval) {
 216                         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 217                                 "File Not Found.  Use app to download.\n");
 218                         return STATUS_SUCCESS;
 219                 }
 220                 BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 221                         "InterfaceAdapterInit failed.\n");
 222                 usb_set_intfdata(intf, NULL);
 223                 udev = interface_to_usbdev(intf);
 224                 usb_put_dev(udev);
 225                 InterfaceAdapterFree(psIntfAdapter);
 226                 return retval;
 227         }
 228         if (psAdapter->chip_id > T3) {
 229                 uint32_t uiNackZeroLengthInt = 4;
 230
 231                 retval = wrmalt(psAdapter, DISABLE_USB_ZERO_LEN_INT, &uiNackZeroLengthInt, sizeof(uiNackZeroLengthInt));
 232                 if (retval)
 233                         return retval;
 234         }
 235
 236         /* Check whether the USB-Device Supports remote Wake-Up */
 237         if (USB_CONFIG_ATT_WAKEUP & udev->actconfig->desc.bmAttributes) {
 238                 /* If Suspend then only support dynamic suspend */
 239                 if (psAdapter->bDoSuspend) {
 240 #ifdef CONFIG_PM
 241                         pm_runtime_set_autosuspend_delay(&udev->dev, 0);
 242                         intf->needs_remote_wakeup = 1;
 243                         usb_enable_autosuspend(udev);
 244                         device_init_wakeup(&intf->dev, 1);
 245                         INIT_WORK(&psIntfAdapter->usbSuspendWork, putUsbSuspend);
 246                         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 247                                 "Enabling USB Auto-Suspend\n");
 248 #endif
 249                 } else {
 250                         intf->needs_remote_wakeup = 0;
 251                         usb_disable_autosuspend(udev);
 252                 }
 253         }
 254
 255         psAdapter->stDebugState.subtype[DBG_TYPE_INITEXIT] = 0x0;
 256         return retval;
 257 }
 258
 259 static void usbbcm_disconnect(struct usb_interface *intf)
 260 {
 261         struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);
 262         struct bcm_mini_adapter *psAdapter;
 263         struct usb_device  *udev = interface_to_usbdev(intf);
 264
 265         if (psIntfAdapter == NULL)
 266                 return;
 267
 268         psAdapter = psIntfAdapter->psAdapter;
 269         netif_device_detach(psAdapter->dev);
 270
 271         if (psAdapter->bDoSuspend)
 272                 intf->needs_remote_wakeup = 0;
 273
 274         psAdapter->device_removed = TRUE ;
 275         usb_set_intfdata(intf, NULL);
 276         InterfaceAdapterFree(psIntfAdapter);
 277         usb_put_dev(udev);
 278 }
 279
 280 static int AllocUsbCb(struct bcm_interface_adapter *psIntfAdapter)
 281 {
 282         int i = 0;
 283
 284         for (i = 0; i < MAXIMUM_USB_TCB; i++) {
 285                 psIntfAdapter->asUsbTcb[i].urb = usb_alloc_urb(0, GFP_KERNEL);
 286
 287                 if (psIntfAdapter->asUsbTcb[i].urb == NULL) {
 288                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0,
 289                                 "Can't allocate Tx urb for index %d\n", i);
 290                         return -ENOMEM;
 291                 }
 292         }
 293
 294         for (i = 0; i < MAXIMUM_USB_RCB; i++) {
 295                 psIntfAdapter->asUsbRcb[i].urb = usb_alloc_urb(0, GFP_KERNEL);
 296
 297                 if (psIntfAdapter->asUsbRcb[i].urb == NULL) {
 298                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0,
 299                                 "Can't allocate Rx urb for index %d\n", i);
 300                         return -ENOMEM;
 301                 }
 302
 303                 psIntfAdapter->asUsbRcb[i].urb->transfer_buffer = kmalloc(MAX_DATA_BUFFER_SIZE, GFP_KERNEL);
 304
 305                 if (psIntfAdapter->asUsbRcb[i].urb->transfer_buffer == NULL) {
 306                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0,
 307                                 "Can't allocate Rx buffer for index %d\n", i);
 308                         return -ENOMEM;
 309                 }
 310                 psIntfAdapter->asUsbRcb[i].urb->transfer_buffer_length = MAX_DATA_BUFFER_SIZE;
 311         }
 312         return 0;
 313 }
 314
 315 static int device_run(struct bcm_interface_adapter *psIntfAdapter)
 316 {
 317         int value = 0;
 318         UINT status = STATUS_SUCCESS;
 319
 320         status = InitCardAndDownloadFirmware(psIntfAdapter->psAdapter);
 321         if (status != STATUS_SUCCESS) {
 322                 pr_err(DRV_NAME "InitCardAndDownloadFirmware failed.\n");
 323                 return status;
 324         }
 325         if (TRUE == psIntfAdapter->psAdapter->fw_download_done) {
 326                 if (StartInterruptUrb(psIntfAdapter)) {
 327                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 328                         "Cannot send interrupt in URB\n");
 329                 }
 330
 331                 /*
 332                  * now register the cntrl interface.
 333                  * after downloading the f/w waiting for 5 sec to get the mailbox interrupt.
 334                  */
 335                 psIntfAdapter->psAdapter->waiting_to_fw_download_done = false;
 336                 value = wait_event_timeout(psIntfAdapter->psAdapter->ioctl_fw_dnld_wait_queue,
 337                                         psIntfAdapter->psAdapter->waiting_to_fw_download_done, 5*HZ);
 338
 339                 if (value == 0)
 340                         pr_err(DRV_NAME ": Timeout waiting for mailbox interrupt.\n");
 341
 342                 if (register_control_device_interface(psIntfAdapter->psAdapter) < 0) {
 343                         pr_err(DRV_NAME ": Register Control Device failed.\n");
 344                         return -EIO;
 345                 }
 346         }
 347         return 0;
 348 }
 349
 350
 351 static inline int bcm_usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
 352 {
 353         return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
 354 }
 355
 356 static inline int bcm_usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
 357 {
 358         return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
 359 }
 360
 361 static inline int bcm_usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
 362 {
 363         return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
 364 }
 365
 366 static inline int bcm_usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd)
 367 {
 368         return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
 369 }
 370
 371 static inline int bcm_usb_endpoint_xfer_bulk(const struct usb_endpoint_descriptor *epd)
 372 {
 373         return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 374                 USB_ENDPOINT_XFER_BULK);
 375 }
 376
 377 static inline int bcm_usb_endpoint_xfer_control(const struct usb_endpoint_descriptor *epd)
 378 {
 379         return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 380                 USB_ENDPOINT_XFER_CONTROL);
 381 }
 382
 383 static inline int bcm_usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd)
 384 {
 385         return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 386                 USB_ENDPOINT_XFER_INT);
 387 }
 388
 389 static inline int bcm_usb_endpoint_xfer_isoc(const struct usb_endpoint_descriptor *epd)
 390 {
 391         return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 392                 USB_ENDPOINT_XFER_ISOC);
 393 }
 394
 395 static inline int bcm_usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd)
 396 {
 397         return bcm_usb_endpoint_xfer_bulk(epd) && bcm_usb_endpoint_dir_in(epd);
 398 }
 399
 400 static inline int bcm_usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd)
 401 {
 402         return bcm_usb_endpoint_xfer_bulk(epd) && bcm_usb_endpoint_dir_out(epd);
 403 }
 404
 405 static inline int bcm_usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd)
 406 {
 407         return bcm_usb_endpoint_xfer_int(epd) && bcm_usb_endpoint_dir_in(epd);
 408 }
 409
 410 static inline int bcm_usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd)
 411 {
 412         return bcm_usb_endpoint_xfer_int(epd) && bcm_usb_endpoint_dir_out(epd);
 413 }
 414
 415 static inline int bcm_usb_endpoint_is_isoc_in(const struct usb_endpoint_descriptor *epd)
 416 {
 417         return bcm_usb_endpoint_xfer_isoc(epd) && bcm_usb_endpoint_dir_in(epd);
 418 }
 419
 420 static inline int bcm_usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor *epd)
 421 {
 422         return bcm_usb_endpoint_xfer_isoc(epd) && bcm_usb_endpoint_dir_out(epd);
 423 }
 424
 425 static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
 426 {
 427         struct usb_host_interface *iface_desc;
 428         struct usb_endpoint_descriptor *endpoint;
 429         size_t buffer_size;
 430         unsigned long value;
 431         int retval = 0;
 432         int usedIntOutForBulkTransfer = 0 ;
 433         bool bBcm16 = false;
 434         UINT uiData = 0;
 435         int bytes;
 436
 437         /* Store the usb dev into interface adapter */
 438         psIntfAdapter->udev = usb_get_dev(interface_to_usbdev(psIntfAdapter->interface));
 439
 440         psIntfAdapter->bHighSpeedDevice = (psIntfAdapter->udev->speed == USB_SPEED_HIGH);
 441         psIntfAdapter->psAdapter->interface_rdm = BcmRDM;
 442         psIntfAdapter->psAdapter->interface_wrm = BcmWRM;
 443
 444         bytes = rdmalt(psIntfAdapter->psAdapter, CHIP_ID_REG,
 445                         (u32 *)&(psIntfAdapter->psAdapter->chip_id), sizeof(u32));
 446         if (bytes < 0) {
 447                 retval = bytes;
 448                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "CHIP ID Read Failed\n");
 449                 return retval;
 450         }
 451
 452         if (0xbece3200 == (psIntfAdapter->psAdapter->chip_id & ~(0xF0)))
 453                 psIntfAdapter->psAdapter->chip_id &= ~0xF0;
 454
 455         dev_info(&psIntfAdapter->udev->dev, "RDM Chip ID 0x%lx\n",
 456                  psIntfAdapter->psAdapter->chip_id);
 457
 458         iface_desc = psIntfAdapter->interface->cur_altsetting;
 459
 460         if (psIntfAdapter->psAdapter->chip_id == T3B) {
 461                 /* T3B device will have EEPROM, check if EEPROM is proper and BCM16 can be done or not. */
 462                 BeceemEEPROMBulkRead(psIntfAdapter->psAdapter, &uiData, 0x0, 4);
 463                 if (uiData == BECM)
 464                         bBcm16 = TRUE;
 465
 466                 dev_info(&psIntfAdapter->udev->dev, "number of alternate setting %d\n",
 467                          psIntfAdapter->interface->num_altsetting);
 468
 469                 if (bBcm16 == TRUE) {
 470                         /* selecting alternate setting one as a default setting for High Speed  modem. */
 471                         if (psIntfAdapter->bHighSpeedDevice)
 472                                 retval = usb_set_interface(psIntfAdapter->udev, DEFAULT_SETTING_0, ALTERNATE_SETTING_1);
 473                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 474                                 "BCM16 is applicable on this dongle\n");
 475                         if (retval || (psIntfAdapter->bHighSpeedDevice == false)) {
 476                                 usedIntOutForBulkTransfer = EP2 ;
 477                                 endpoint = &iface_desc->endpoint[EP2].desc;
 478                                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 479                                          "Interface altsetting failed or modem is configured to Full Speed, hence will work on default setting 0\n");
 480                                 /*
 481                                  * If Modem is high speed device EP2 should be INT OUT End point
 482                                  * If Mode is FS then EP2 should be bulk end point
 483                                  */
 484                                 if (((psIntfAdapter->bHighSpeedDevice == TRUE) && (bcm_usb_endpoint_is_int_out(endpoint) == false))
 485                                         || ((psIntfAdapter->bHighSpeedDevice == false) && (bcm_usb_endpoint_is_bulk_out(endpoint) == false))) {
 486                                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 487                                                 "Configuring the EEPROM\n");
 488                                         /* change the EP2, EP4 to INT OUT end point */
 489                                         ConfigureEndPointTypesThroughEEPROM(psIntfAdapter->psAdapter);
 490
 491                                         /*
 492                                          * It resets the device and if any thing gets changed
 493                                          *  in USB descriptor it will show fail and re-enumerate
 494                                          * the device
 495                                          */
 496                                         retval = usb_reset_device(psIntfAdapter->udev);
 497                                         if (retval) {
 498                                                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 499                                                         "reset failed.  Re-enumerating the device.\n");
 500                                                 return retval ;
 501                                         }
 502
 503                                 }
 504                                 if ((psIntfAdapter->bHighSpeedDevice == false) && bcm_usb_endpoint_is_bulk_out(endpoint)) {
 505                                         /* Once BULK is selected in FS mode. Revert it back to INT. Else USB_IF will fail. */
 506                                         UINT _uiData = ntohl(EP2_CFG_INT);
 507                                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 508                                                 "Reverting Bulk to INT as it is in Full Speed mode.\n");
 509                                         BeceemEEPROMBulkWrite(psIntfAdapter->psAdapter, (PUCHAR)&_uiData, 0x136, 4, TRUE);
 510                                 }
 511                         } else {
 512                                 usedIntOutForBulkTransfer = EP4 ;
 513                                 endpoint = &iface_desc->endpoint[EP4].desc;
 514                                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 515                                         "Choosing AltSetting as a default setting.\n");
 516                                 if (bcm_usb_endpoint_is_int_out(endpoint) == false) {
 517                                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 518                                                 "Dongle does not have BCM16 Fix.\n");
 519                                         /* change the EP2, EP4 to INT OUT end point and use EP4 in altsetting */
 520                                         ConfigureEndPointTypesThroughEEPROM(psIntfAdapter->psAdapter);
 521
 522                                         /*
 523                                          * It resets the device and if any thing gets changed in
 524                                          *  USB descriptor it will show fail and re-enumerate the
 525                                          * device
 526                                          */
 527                                         retval = usb_reset_device(psIntfAdapter->udev);
 528                                         if (retval) {
 529                                                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 530                                                         "reset failed.  Re-enumerating the device.\n");
 531                                                 return retval;
 532                                         }
 533
 534                                 }
 535                         }
 536                 }
 537         }
 538
 539         iface_desc = psIntfAdapter->interface->cur_altsetting;
 540
 541         for (value = 0; value < iface_desc->desc.bNumEndpoints; ++value) {
 542                 endpoint = &iface_desc->endpoint[value].desc;
 543
 544                 if (!psIntfAdapter->sBulkIn.bulk_in_endpointAddr && bcm_usb_endpoint_is_bulk_in(endpoint)) {
 545                         buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 546                         psIntfAdapter->sBulkIn.bulk_in_size = buffer_size;
 547                         psIntfAdapter->sBulkIn.bulk_in_endpointAddr = endpoint->bEndpointAddress;
 548                         psIntfAdapter->sBulkIn.bulk_in_pipe =
 549                                         usb_rcvbulkpipe(psIntfAdapter->udev,
 550                                                                 psIntfAdapter->sBulkIn.bulk_in_endpointAddr);
 551                 }
 552
 553                 if (!psIntfAdapter->sBulkOut.bulk_out_endpointAddr && bcm_usb_endpoint_is_bulk_out(endpoint)) {
 554                         psIntfAdapter->sBulkOut.bulk_out_endpointAddr = endpoint->bEndpointAddress;
 555                         psIntfAdapter->sBulkOut.bulk_out_pipe =
 556                                 usb_sndbulkpipe(psIntfAdapter->udev,
 557                                         psIntfAdapter->sBulkOut.bulk_out_endpointAddr);
 558                 }
 559
 560                 if (!psIntfAdapter->sIntrIn.int_in_endpointAddr && bcm_usb_endpoint_is_int_in(endpoint)) {
 561                         buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 562                         psIntfAdapter->sIntrIn.int_in_size = buffer_size;
 563                         psIntfAdapter->sIntrIn.int_in_endpointAddr = endpoint->bEndpointAddress;
 564                         psIntfAdapter->sIntrIn.int_in_interval = endpoint->bInterval;
 565                         psIntfAdapter->sIntrIn.int_in_buffer =
 566                                                 kmalloc(buffer_size, GFP_KERNEL);
 567                         if (!psIntfAdapter->sIntrIn.int_in_buffer)
 568                                 return -EINVAL;
 569                 }
 570
 571                 if (!psIntfAdapter->sIntrOut.int_out_endpointAddr && bcm_usb_endpoint_is_int_out(endpoint)) {
 572                         if (!psIntfAdapter->sBulkOut.bulk_out_endpointAddr &&
 573                                 (psIntfAdapter->psAdapter->chip_id == T3B) && (value == usedIntOutForBulkTransfer)) {
 574                                 /* use first intout end point as a bulk out end point */
 575                                 buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 576                                 psIntfAdapter->sBulkOut.bulk_out_size = buffer_size;
 577                                 psIntfAdapter->sBulkOut.bulk_out_endpointAddr = endpoint->bEndpointAddress;
 578                                 psIntfAdapter->sBulkOut.bulk_out_pipe = usb_sndintpipe(psIntfAdapter->udev,
 579                                                                         psIntfAdapter->sBulkOut.bulk_out_endpointAddr);
 580                                 psIntfAdapter->sBulkOut.int_out_interval = endpoint->bInterval;
 581                         } else if (value == EP6) {
 582                                 buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 583                                 psIntfAdapter->sIntrOut.int_out_size = buffer_size;
 584                                 psIntfAdapter->sIntrOut.int_out_endpointAddr = endpoint->bEndpointAddress;
 585                                 psIntfAdapter->sIntrOut.int_out_interval = endpoint->bInterval;
 586                                 psIntfAdapter->sIntrOut.int_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
 587                                 if (!psIntfAdapter->sIntrOut.int_out_buffer)
 588                                         return -EINVAL;
 589                         }
 590                 }
 591         }
 592
 593         usb_set_intfdata(psIntfAdapter->interface, psIntfAdapter);
 594
 595         psIntfAdapter->psAdapter->bcm_file_download = InterfaceFileDownload;
 596         psIntfAdapter->psAdapter->bcm_file_readback_from_chip =
 597                                 InterfaceFileReadbackFromChip;
 598         psIntfAdapter->psAdapter->interface_transmit = InterfaceTransmitPacket;
 599
 600         retval = CreateInterruptUrb(psIntfAdapter);
 601
 602         if (retval) {
 603                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0,
 604                         "Cannot create interrupt urb\n");
 605                 return retval;
 606         }
 607
 608         retval = AllocUsbCb(psIntfAdapter);
 609         if (retval)
 610                 return retval;
 611
 612         return device_run(psIntfAdapter);
 613 }
 614
 615 static int InterfaceSuspend(struct usb_interface *intf, pm_message_t message)
 616 {
 617         struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);
 618
 619         psIntfAdapter->bSuspended = TRUE;
 620
 621         if (TRUE == psIntfAdapter->bPreparingForBusSuspend) {
 622                 psIntfAdapter->bPreparingForBusSuspend = false;
 623
 624                 if (psIntfAdapter->psAdapter->LinkStatus == LINKUP_DONE) {
 625                         psIntfAdapter->psAdapter->IdleMode = TRUE ;
 626                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 627                                 "Host Entered in PMU Idle Mode.\n");
 628                 } else {
 629                         psIntfAdapter->psAdapter->bShutStatus = TRUE;
 630                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 631                                 "Host Entered in PMU Shutdown Mode.\n");
 632                 }
 633         }
 634         psIntfAdapter->psAdapter->bPreparingForLowPowerMode = false;
 635
 636         /* Signaling the control pkt path */
 637         wake_up(&psIntfAdapter->psAdapter->lowpower_mode_wait_queue);
 638
 639         return 0;
 640 }
 641
 642 static int InterfaceResume(struct usb_interface *intf)
 643 {
 644         struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);
 645
 646         mdelay(100);
 647         psIntfAdapter->bSuspended = false;
 648
 649         StartInterruptUrb(psIntfAdapter);
 650         InterfaceRx(psIntfAdapter);
 651         return 0;
 652 }
 653
 654 static struct usb_driver usbbcm_driver = {
 655         .name = "usbbcm",
 656         .probe = usbbcm_device_probe,
 657         .disconnect = usbbcm_disconnect,
 658         .suspend = InterfaceSuspend,
 659         .resume = InterfaceResume,
 660         .id_table = InterfaceUsbtable,
 661         .supports_autosuspend = 1,
 662 };
 663
 664 struct class *bcm_class;
 665
 666 static __init int bcm_init(void)
 667 {
 668         int retval;
 669
 670         pr_info("%s: %s, %s\n", DRV_NAME, DRV_DESCRIPTION, DRV_VERSION);
 671         pr_info("%s\n", DRV_COPYRIGHT);
 672
 673         bcm_class = class_create(THIS_MODULE, DRV_NAME);
 674         if (IS_ERR(bcm_class)) {
 675                 pr_err(DRV_NAME ": could not create class\n");
 676                 return PTR_ERR(bcm_class);
 677         }
 678
 679         retval = usb_register(&usbbcm_driver);
 680         if (retval < 0) {
 681                 pr_err(DRV_NAME ": could not register usb driver\n");
 682                 class_destroy(bcm_class);
 683                 return retval;
 684         }
 685         return 0;
 686 }
 687
 688 static __exit void bcm_exit(void)
 689 {
 690         usb_deregister(&usbbcm_driver);
 691         class_destroy(bcm_class);
 692 }
 693
 694 module_init(bcm_init);
 695 module_exit(bcm_exit);
 696
 697 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 698 MODULE_VERSION(DRV_VERSION);
 699 MODULE_LICENSE("GPL");