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_SM250) },
   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         { }
  12 };
  13 MODULE_DEVICE_TABLE(usb, InterfaceUsbtable);
  14
  15 static int debug = -1;
  16 module_param(debug, uint, 0600);
  17 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
  18
  19 static const u32 default_msg =
  20         NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
  21         | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
  22         | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
  23
  24 static int InterfaceAdapterInit(PS_INTERFACE_ADAPTER Adapter);
  25
  26 static void InterfaceAdapterFree(PS_INTERFACE_ADAPTER psIntfAdapter)
  27 {
  28         int i = 0;
  29
  30         /* Wake up the wait_queue... */
  31         if (psIntfAdapter->psAdapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
  32                 psIntfAdapter->psAdapter->DriverState = DRIVER_HALT;
  33                 wake_up(&psIntfAdapter->psAdapter->LEDInfo.notify_led_event);
  34         }
  35         reset_card_proc(psIntfAdapter->psAdapter);
  36
  37         /*
  38          * worst case time taken by the RDM/WRM will be 5 sec. will check after every 100 ms
  39          * to accertain the device is not being accessed. After this No RDM/WRM should be made.
  40          */
  41         while (psIntfAdapter->psAdapter->DeviceAccess) {
  42                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
  43                         "Device is being Accessed \n");
  44                 msleep(100);
  45         }
  46         /* Free interrupt URB */
  47         /* psIntfAdapter->psAdapter->device_removed = TRUE; */
  48         if (psIntfAdapter->psInterruptUrb) {
  49                 usb_free_urb(psIntfAdapter->psInterruptUrb);
  50         }
  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(PMINI_ADAPTER Adapter)
  71 {
  72         unsigned long ulReg = 0;
  73
  74         /* Program EP2 MAX_PKT_SIZE */
  75         ulReg = ntohl(EP2_MPS_REG);
  76         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x128, 4, TRUE);
  77         ulReg = ntohl(EP2_MPS);
  78         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x12C, 4, TRUE);
  79
  80         ulReg = ntohl(EP2_CFG_REG);
  81         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x132, 4, TRUE);
  82         if (((PS_INTERFACE_ADAPTER)(Adapter->pvInterfaceAdapter))->bHighSpeedDevice == TRUE) {
  83                 ulReg = ntohl(EP2_CFG_INT);
  84                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x136, 4, TRUE);
  85         } else {
  86                 /* USE BULK EP as TX in FS mode. */
  87                 ulReg = ntohl(EP2_CFG_BULK);
  88                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x136, 4, TRUE);
  89         }
  90
  91         /* Program EP4 MAX_PKT_SIZE. */
  92         ulReg = ntohl(EP4_MPS_REG);
  93         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x13C, 4, TRUE);
  94         ulReg = ntohl(EP4_MPS);
  95         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x140, 4, TRUE);
  96
  97         /* Program TX EP as interrupt(Alternate Setting) */
  98         if (rdmalt(Adapter, 0x0F0110F8, (PUINT)&ulReg, 4)) {
  99                 BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "reading of Tx EP is failing");
 100                 return;
 101         }
 102         ulReg |= 0x6;
 103
 104         ulReg = ntohl(ulReg);
 105         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1CC, 4, TRUE);
 106
 107         ulReg = ntohl(EP4_CFG_REG);
 108         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1C8, 4, TRUE);
 109         /* Program ISOCHRONOUS EP size to zero. */
 110         ulReg = ntohl(ISO_MPS_REG);
 111         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1D2, 4, TRUE);
 112         ulReg = ntohl(ISO_MPS);
 113         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1D6, 4, TRUE);
 114
 115         /*
 116          * Update EEPROM Version.
 117          * Read 4 bytes from 508 and modify 511 and 510.
 118          */
 119         ReadBeceemEEPROM(Adapter, 0x1FC, (PUINT)&ulReg);
 120         ulReg &= 0x0101FFFF;
 121         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1FC, 4, TRUE);
 122
 123         /* Update length field if required. Also make the string NULL terminated. */
 124
 125         ReadBeceemEEPROM(Adapter, 0xA8, (PUINT)&ulReg);
 126         if ((ulReg&0x00FF0000)>>16 > 0x30) {
 127                 ulReg = (ulReg&0xFF00FFFF)|(0x30<<16);
 128                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0xA8, 4, TRUE);
 129         }
 130         ReadBeceemEEPROM(Adapter, 0x148, (PUINT)&ulReg);
 131         if ((ulReg&0x00FF0000)>>16 > 0x30) {
 132                 ulReg = (ulReg&0xFF00FFFF)|(0x30<<16);
 133                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x148, 4, TRUE);
 134         }
 135         ulReg = 0;
 136         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x122, 4, TRUE);
 137         ulReg = 0;
 138         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1C2, 4, TRUE);
 139 }
 140
 141 static int
 142 usbbcm_device_probe(struct usb_interface *intf, const struct usb_device_id *id)
 143 {
 144         struct usb_device *udev = interface_to_usbdev(intf);
 145         int retval;
 146         PMINI_ADAPTER psAdapter;
 147         PS_INTERFACE_ADAPTER psIntfAdapter;
 148         struct net_device *ndev;
 149
 150         /* Reserve one extra queue for the bit-bucket */
 151         ndev = alloc_etherdev_mq(sizeof(MINI_ADAPTER), NO_OF_QUEUES+1);
 152         if (ndev == NULL) {
 153                 dev_err(&udev->dev, DRV_NAME ": no memory for device\n");
 154                 return -ENOMEM;
 155         }
 156
 157         SET_NETDEV_DEV(ndev, &intf->dev);
 158
 159         psAdapter = netdev_priv(ndev);
 160         psAdapter->dev = ndev;
 161         psAdapter->msg_enable = netif_msg_init(debug, default_msg);
 162
 163         /* Init default driver debug state */
 164
 165         psAdapter->stDebugState.debug_level = DBG_LVL_CURR;
 166         psAdapter->stDebugState.type = DBG_TYPE_INITEXIT;
 167
 168         /*
 169          * Technically, one can start using BCM_DEBUG_PRINT after this point.
 170          * However, realize that by default the Type/Subtype bitmaps are all zero now;
 171          * so no prints will actually appear until the TestApp turns on debug paths via
 172          * the ioctl(); so practically speaking, in early init, no logging happens.
 173          *
 174          * A solution (used below): we explicitly set the bitmaps to 1 for Type=DBG_TYPE_INITEXIT
 175          * and ALL subtype's of the same. Now all bcm debug statements get logged, enabling debug
 176          * during early init.
 177          * Further, we turn this OFF once init_module() completes.
 178          */
 179
 180         psAdapter->stDebugState.subtype[DBG_TYPE_INITEXIT] = 0xff;
 181         BCM_SHOW_DEBUG_BITMAP(psAdapter);
 182
 183         retval = InitAdapter(psAdapter);
 184         if (retval) {
 185                 dev_err(&udev->dev, DRV_NAME ": InitAdapter Failed\n");
 186                 AdapterFree(psAdapter);
 187                 return retval;
 188         }
 189
 190         /* Allocate interface adapter structure */
 191         psIntfAdapter = kzalloc(sizeof(S_INTERFACE_ADAPTER), GFP_KERNEL);
 192         if (psIntfAdapter == NULL) {
 193                 dev_err(&udev->dev, DRV_NAME ": no memory for Interface adapter\n");
 194                 AdapterFree(psAdapter);
 195                 return -ENOMEM;
 196         }
 197
 198         psAdapter->pvInterfaceAdapter = psIntfAdapter;
 199         psIntfAdapter->psAdapter = psAdapter;
 200
 201         /* Store usb interface in Interface Adapter */
 202         psIntfAdapter->interface = intf;
 203         usb_set_intfdata(intf, psIntfAdapter);
 204
 205         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "psIntfAdapter 0x%p", psIntfAdapter);
 206         retval = InterfaceAdapterInit(psIntfAdapter);
 207         if (retval) {
 208                 /* If the Firmware/Cfg File is not present
 209                  * then return success, let the application
 210                  * download the files.
 211                  */
 212                 if (-ENOENT == retval) {
 213                         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "File Not Found, Use App to Download\n");
 214                         return STATUS_SUCCESS;
 215                 }
 216                 BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "InterfaceAdapterInit Failed \n");
 217                 usb_set_intfdata(intf, NULL);
 218                 udev = interface_to_usbdev(intf);
 219                 usb_put_dev(udev);
 220                 InterfaceAdapterFree(psIntfAdapter);
 221                 return retval;
 222         }
 223         if (psAdapter->chip_id > T3) {
 224                 uint32_t uiNackZeroLengthInt = 4;
 225
 226                 if (wrmalt(psAdapter, DISABLE_USB_ZERO_LEN_INT, &uiNackZeroLengthInt, sizeof(uiNackZeroLengthInt))) {
 227                         return -EIO;
 228                 }
 229         }
 230
 231         /* Check whether the USB-Device Supports remote Wake-Up */
 232         if (USB_CONFIG_ATT_WAKEUP & udev->actconfig->desc.bmAttributes) {
 233                 /* If Suspend then only support dynamic suspend */
 234                 if (psAdapter->bDoSuspend) {
 235 #ifdef CONFIG_PM
 236                         udev->autosuspend_delay = 0;
 237                         intf->needs_remote_wakeup = 1;
 238                         usb_enable_autosuspend(udev);
 239                         device_init_wakeup(&intf->dev, 1);
 240                         INIT_WORK(&psIntfAdapter->usbSuspendWork, putUsbSuspend);
 241                         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "Enabling USB Auto-Suspend\n");
 242 #endif
 243                 } else {
 244                         intf->needs_remote_wakeup = 0;
 245                         usb_disable_autosuspend(udev);
 246                 }
 247         }
 248
 249         psAdapter->stDebugState.subtype[DBG_TYPE_INITEXIT] = 0x0;
 250         return retval;
 251 }
 252
 253 static void usbbcm_disconnect(struct usb_interface *intf)
 254 {
 255         PS_INTERFACE_ADAPTER psIntfAdapter = usb_get_intfdata(intf);
 256         PMINI_ADAPTER psAdapter;
 257         struct usb_device  *udev = interface_to_usbdev(intf);
 258
 259         if (psIntfAdapter == NULL)
 260                 return;
 261
 262         psAdapter = psIntfAdapter->psAdapter;
 263         netif_device_detach(psAdapter->dev);
 264
 265         if (psAdapter->bDoSuspend)
 266                 intf->needs_remote_wakeup = 0;
 267
 268         psAdapter->device_removed = TRUE ;
 269         usb_set_intfdata(intf, NULL);
 270         InterfaceAdapterFree(psIntfAdapter);
 271         usb_put_dev(udev);
 272 }
 273
 274 static int AllocUsbCb(PS_INTERFACE_ADAPTER psIntfAdapter)
 275 {
 276         int i = 0;
 277
 278         for (i = 0; i < MAXIMUM_USB_TCB; i++) {
 279                 if ((psIntfAdapter->asUsbTcb[i].urb =
 280                                 usb_alloc_urb(0, GFP_KERNEL)) == NULL) {
 281                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Cant allocate Tx urb for index %d", i);
 282                         return -ENOMEM;
 283                 }
 284         }
 285
 286         for (i = 0; i < MAXIMUM_USB_RCB; i++) {
 287                 if ((psIntfAdapter->asUsbRcb[i].urb =
 288                                 usb_alloc_urb(0, GFP_KERNEL)) == NULL) {
 289                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Cant allocate Rx urb for index %d", i);
 290                         return -ENOMEM;
 291                 }
 292                 if ((psIntfAdapter->asUsbRcb[i].urb->transfer_buffer =
 293                         kmalloc(MAX_DATA_BUFFER_SIZE, GFP_KERNEL)) == NULL) {
 294                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Cant allocate Rx buffer for index %d", i);
 295                         return -ENOMEM;
 296                 }
 297                 psIntfAdapter->asUsbRcb[i].urb->transfer_buffer_length = MAX_DATA_BUFFER_SIZE;
 298         }
 299         return 0;
 300 }
 301
 302 static int device_run(PS_INTERFACE_ADAPTER psIntfAdapter)
 303 {
 304         int value = 0;
 305         UINT status = STATUS_SUCCESS;
 306
 307         status = InitCardAndDownloadFirmware(psIntfAdapter->psAdapter);
 308         if (status != STATUS_SUCCESS) {
 309                 pr_err(DRV_NAME "InitCardAndDownloadFirmware failed.\n");
 310                 return status;
 311         }
 312         if (TRUE == psIntfAdapter->psAdapter->fw_download_done) {
 313                 if (StartInterruptUrb(psIntfAdapter)) {
 314                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "Cannot send interrupt in URB");
 315                 }
 316
 317                 /*
 318                  * now register the cntrl interface.
 319                  * after downloading the f/w waiting for 5 sec to get the mailbox interrupt.
 320                  */
 321                 psIntfAdapter->psAdapter->waiting_to_fw_download_done = FALSE;
 322                 value = wait_event_timeout(psIntfAdapter->psAdapter->ioctl_fw_dnld_wait_queue,
 323                                         psIntfAdapter->psAdapter->waiting_to_fw_download_done, 5*HZ);
 324
 325                 if (value == 0)
 326                         pr_err(DRV_NAME ": Mailbox Interrupt has not reached to Driver..\n");
 327
 328                 if (register_control_device_interface(psIntfAdapter->psAdapter) < 0) {
 329                         pr_err(DRV_NAME ": Register Control Device failed...\n");
 330                         return -EIO;
 331                 }
 332         }
 333         return 0;
 334 }
 335
 336
 337 static inline int bcm_usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
 338 {
 339         return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
 340 }
 341
 342 static inline int bcm_usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
 343 {
 344         return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
 345 }
 346
 347 static inline int bcm_usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
 348 {
 349         return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
 350 }
 351
 352 static inline int bcm_usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd)
 353 {
 354         return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
 355 }
 356
 357 static inline int bcm_usb_endpoint_xfer_bulk(const struct usb_endpoint_descriptor *epd)
 358 {
 359         return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 360                 USB_ENDPOINT_XFER_BULK);
 361 }
 362
 363 static inline int bcm_usb_endpoint_xfer_control(const struct usb_endpoint_descriptor *epd)
 364 {
 365         return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 366                 USB_ENDPOINT_XFER_CONTROL);
 367 }
 368
 369 static inline int bcm_usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd)
 370 {
 371         return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 372                 USB_ENDPOINT_XFER_INT);
 373 }
 374
 375 static inline int bcm_usb_endpoint_xfer_isoc(const struct usb_endpoint_descriptor *epd)
 376 {
 377         return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
 378                 USB_ENDPOINT_XFER_ISOC);
 379 }
 380
 381 static inline int bcm_usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd)
 382 {
 383         return (bcm_usb_endpoint_xfer_bulk(epd) && bcm_usb_endpoint_dir_in(epd));
 384 }
 385
 386 static inline int bcm_usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd)
 387 {
 388         return (bcm_usb_endpoint_xfer_bulk(epd) && bcm_usb_endpoint_dir_out(epd));
 389 }
 390
 391 static inline int bcm_usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd)
 392 {
 393         return (bcm_usb_endpoint_xfer_int(epd) && bcm_usb_endpoint_dir_in(epd));
 394 }
 395
 396 static inline int bcm_usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd)
 397 {
 398         return (bcm_usb_endpoint_xfer_int(epd) && bcm_usb_endpoint_dir_out(epd));
 399 }
 400
 401 static inline int bcm_usb_endpoint_is_isoc_in(const struct usb_endpoint_descriptor *epd)
 402 {
 403         return (bcm_usb_endpoint_xfer_isoc(epd) && bcm_usb_endpoint_dir_in(epd));
 404 }
 405
 406 static inline int bcm_usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor *epd)
 407 {
 408         return (bcm_usb_endpoint_xfer_isoc(epd) && bcm_usb_endpoint_dir_out(epd));
 409 }
 410
 411 static int InterfaceAdapterInit(PS_INTERFACE_ADAPTER psIntfAdapter)
 412 {
 413         struct usb_host_interface *iface_desc;
 414         struct usb_endpoint_descriptor *endpoint;
 415         size_t buffer_size;
 416         unsigned long value;
 417         int retval = 0;
 418         int usedIntOutForBulkTransfer = 0 ;
 419         BOOLEAN bBcm16 = FALSE;
 420         UINT uiData = 0;
 421
 422         /* Store the usb dev into interface adapter */
 423         psIntfAdapter->udev = usb_get_dev(interface_to_usbdev(psIntfAdapter->interface));
 424
 425         psIntfAdapter->bHighSpeedDevice = (psIntfAdapter->udev->speed == USB_SPEED_HIGH);
 426         psIntfAdapter->psAdapter->interface_rdm = BcmRDM;
 427         psIntfAdapter->psAdapter->interface_wrm = BcmWRM;
 428
 429         if (rdmalt(psIntfAdapter->psAdapter, CHIP_ID_REG, (PUINT)&(psIntfAdapter->psAdapter->chip_id), sizeof(UINT)) < 0) {
 430                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "CHIP ID Read Failed\n");
 431                 return STATUS_FAILURE;
 432         }
 433
 434         if (0xbece3200 == (psIntfAdapter->psAdapter->chip_id & ~(0xF0)))
 435                 psIntfAdapter->psAdapter->chip_id &= ~0xF0;
 436
 437         dev_info(&psIntfAdapter->udev->dev, "RDM Chip ID 0x%lx\n",
 438                  psIntfAdapter->psAdapter->chip_id);
 439
 440         iface_desc = psIntfAdapter->interface->cur_altsetting;
 441
 442         if (psIntfAdapter->psAdapter->chip_id == T3B) {
 443                 /* T3B device will have EEPROM, check if EEPROM is proper and BCM16 can be done or not. */
 444                 BeceemEEPROMBulkRead(psIntfAdapter->psAdapter, &uiData, 0x0, 4);
 445                 if (uiData == BECM)
 446                         bBcm16 = TRUE;
 447
 448                 dev_info(&psIntfAdapter->udev->dev, "number of alternate setting %d\n",
 449                          psIntfAdapter->interface->num_altsetting);
 450
 451                 if (bBcm16 == TRUE) {
 452                         /* selecting alternate setting one as a default setting for High Speed  modem. */
 453                         if (psIntfAdapter->bHighSpeedDevice)
 454                                 retval= usb_set_interface(psIntfAdapter->udev, DEFAULT_SETTING_0, ALTERNATE_SETTING_1);
 455                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "BCM16 is Applicable on this dongle");
 456                         if (retval || (psIntfAdapter->bHighSpeedDevice == FALSE)) {
 457                                 usedIntOutForBulkTransfer = EP2 ;
 458                                 endpoint = &iface_desc->endpoint[EP2].desc;
 459                                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "Interface altsetting  got failed or Moemd is configured to FS.hence will work on default setting 0 \n");
 460                                 /*
 461                                  * If Modem is high speed device EP2 should be INT OUT End point
 462                                  * If Mode is FS then EP2 should be bulk end point
 463                                  */
 464                                 if (((psIntfAdapter->bHighSpeedDevice == TRUE) && (bcm_usb_endpoint_is_int_out(endpoint) == FALSE))
 465                                         || ((psIntfAdapter->bHighSpeedDevice == FALSE) && (bcm_usb_endpoint_is_bulk_out(endpoint) == FALSE))) {
 466                                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "Configuring the EEPROM ");
 467                                         /* change the EP2, EP4 to INT OUT end point */
 468                                         ConfigureEndPointTypesThroughEEPROM(psIntfAdapter->psAdapter);
 469
 470                                         /*
 471                                          * It resets the device and if any thing gets changed
 472                                          *  in USB descriptor it will show fail and re-enumerate
 473                                          * the device
 474                                          */
 475                                         retval = usb_reset_device(psIntfAdapter->udev);
 476                                         if (retval) {
 477                                                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "reset got failed. hence Re-enumerating the device \n");
 478                                                 return retval ;
 479                                         }
 480
 481                                 }
 482                                 if ((psIntfAdapter->bHighSpeedDevice == FALSE) && bcm_usb_endpoint_is_bulk_out(endpoint)) {
 483                                         /* Once BULK is selected in FS mode. Revert it back to INT. Else USB_IF will fail. */
 484                                         UINT _uiData = ntohl(EP2_CFG_INT);
 485                                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "Reverting Bulk to INT as it is FS MODE");
 486                                         BeceemEEPROMBulkWrite(psIntfAdapter->psAdapter, (PUCHAR)&_uiData, 0x136, 4, TRUE);
 487                                 }
 488                         } else {
 489                                 usedIntOutForBulkTransfer = EP4 ;
 490                                 endpoint = &iface_desc->endpoint[EP4].desc;
 491                                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "Choosing AltSetting as a default setting");
 492                                 if (bcm_usb_endpoint_is_int_out(endpoint) == FALSE) {
 493                                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, " Dongle does not have BCM16 Fix");
 494                                         /* change the EP2, EP4 to INT OUT end point and use EP4 in altsetting */
 495                                         ConfigureEndPointTypesThroughEEPROM(psIntfAdapter->psAdapter);
 496
 497                                         /*
 498                                          * It resets the device and if any thing gets changed in
 499                                          *  USB descriptor it will show fail and re-enumerate the
 500                                          * device
 501                                          */
 502                                         retval = usb_reset_device(psIntfAdapter->udev);
 503                                         if (retval) {
 504                                                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "reset got failed. hence Re-enumerating the device \n");
 505                                                 return retval;
 506                                         }
 507
 508                                 }
 509                         }
 510                 }
 511         }
 512
 513         iface_desc = psIntfAdapter->interface->cur_altsetting;
 514
 515         for (value = 0; value < iface_desc->desc.bNumEndpoints; ++value) {
 516                 endpoint = &iface_desc->endpoint[value].desc;
 517
 518                 if (!psIntfAdapter->sBulkIn.bulk_in_endpointAddr && bcm_usb_endpoint_is_bulk_in(endpoint)) {
 519                         buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 520                         psIntfAdapter->sBulkIn.bulk_in_size = buffer_size;
 521                         psIntfAdapter->sBulkIn.bulk_in_endpointAddr = endpoint->bEndpointAddress;
 522                         psIntfAdapter->sBulkIn.bulk_in_pipe =
 523                                         usb_rcvbulkpipe(psIntfAdapter->udev,
 524                                                                 psIntfAdapter->sBulkIn.bulk_in_endpointAddr);
 525                 }
 526
 527                 if (!psIntfAdapter->sBulkOut.bulk_out_endpointAddr && bcm_usb_endpoint_is_bulk_out(endpoint)) {
 528                         psIntfAdapter->sBulkOut.bulk_out_endpointAddr = endpoint->bEndpointAddress;
 529                         psIntfAdapter->sBulkOut.bulk_out_pipe =
 530                                 usb_sndbulkpipe(psIntfAdapter->udev,
 531                                         psIntfAdapter->sBulkOut.bulk_out_endpointAddr);
 532                 }
 533
 534                 if (!psIntfAdapter->sIntrIn.int_in_endpointAddr && bcm_usb_endpoint_is_int_in(endpoint)) {
 535                         buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 536                         psIntfAdapter->sIntrIn.int_in_size = buffer_size;
 537                         psIntfAdapter->sIntrIn.int_in_endpointAddr = endpoint->bEndpointAddress;
 538                         psIntfAdapter->sIntrIn.int_in_interval = endpoint->bInterval;
 539                         psIntfAdapter->sIntrIn.int_in_buffer =
 540                                                 kmalloc(buffer_size, GFP_KERNEL);
 541                         if (!psIntfAdapter->sIntrIn.int_in_buffer) {
 542                                 dev_err(&psIntfAdapter->udev->dev,
 543                                         "could not allocate interrupt_in_buffer\n");
 544                                 return -EINVAL;
 545                         }
 546                 }
 547
 548                 if (!psIntfAdapter->sIntrOut.int_out_endpointAddr && bcm_usb_endpoint_is_int_out(endpoint)) {
 549                         if (!psIntfAdapter->sBulkOut.bulk_out_endpointAddr &&
 550                                 (psIntfAdapter->psAdapter->chip_id == T3B) && (value == usedIntOutForBulkTransfer)) {
 551                                 /* use first intout end point as a bulk out end point */
 552                                 buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 553                                 psIntfAdapter->sBulkOut.bulk_out_size = buffer_size;
 554                                 psIntfAdapter->sBulkOut.bulk_out_endpointAddr = endpoint->bEndpointAddress;
 555                                 psIntfAdapter->sBulkOut.bulk_out_pipe = usb_sndintpipe(psIntfAdapter->udev,
 556                                                                         psIntfAdapter->sBulkOut.bulk_out_endpointAddr);
 557                                 psIntfAdapter->sBulkOut.int_out_interval = endpoint->bInterval;
 558                         } else if (value == EP6) {
 559                                 buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 560                                 psIntfAdapter->sIntrOut.int_out_size = buffer_size;
 561                                 psIntfAdapter->sIntrOut.int_out_endpointAddr = endpoint->bEndpointAddress;
 562                                 psIntfAdapter->sIntrOut.int_out_interval = endpoint->bInterval;
 563                                 psIntfAdapter->sIntrOut.int_out_buffer= kmalloc(buffer_size, GFP_KERNEL);
 564                                 if (!psIntfAdapter->sIntrOut.int_out_buffer) {
 565                                         dev_err(&psIntfAdapter->udev->dev,
 566                                                 "could not allocate interrupt_out_buffer\n");
 567                                         return -EINVAL;
 568                                 }
 569                         }
 570                 }
 571         }
 572
 573         usb_set_intfdata(psIntfAdapter->interface, psIntfAdapter);
 574
 575         psIntfAdapter->psAdapter->bcm_file_download = InterfaceFileDownload;
 576         psIntfAdapter->psAdapter->bcm_file_readback_from_chip =
 577                                 InterfaceFileReadbackFromChip;
 578         psIntfAdapter->psAdapter->interface_transmit = InterfaceTransmitPacket;
 579
 580         retval = CreateInterruptUrb(psIntfAdapter);
 581
 582         if (retval) {
 583                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Cannot create interrupt urb");
 584                 return retval;
 585         }
 586
 587         retval = AllocUsbCb(psIntfAdapter);
 588         if (retval) {
 589                 return retval;
 590         }
 591
 592         return device_run(psIntfAdapter);
 593 }
 594
 595 static int InterfaceSuspend(struct usb_interface *intf, pm_message_t message)
 596 {
 597         PS_INTERFACE_ADAPTER  psIntfAdapter = usb_get_intfdata(intf);
 598
 599         psIntfAdapter->bSuspended = TRUE;
 600
 601         if (TRUE == psIntfAdapter->bPreparingForBusSuspend) {
 602                 psIntfAdapter->bPreparingForBusSuspend = FALSE;
 603
 604                 if (psIntfAdapter->psAdapter->LinkStatus == LINKUP_DONE) {
 605                         psIntfAdapter->psAdapter->IdleMode = TRUE ;
 606                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "Host Entered in PMU Idle Mode..");
 607                 } else {
 608                         psIntfAdapter->psAdapter->bShutStatus = TRUE;
 609                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL, "Host Entered in PMU Shutdown Mode..");
 610                 }
 611         }
 612         psIntfAdapter->psAdapter->bPreparingForLowPowerMode = FALSE;
 613
 614         /* Signaling the control pkt path */
 615         wake_up(&psIntfAdapter->psAdapter->lowpower_mode_wait_queue);
 616
 617         return 0;
 618 }
 619
 620 static int InterfaceResume(struct usb_interface *intf)
 621 {
 622         PS_INTERFACE_ADAPTER  psIntfAdapter = usb_get_intfdata(intf);
 623         printk("=================================\n");
 624         mdelay(100);
 625
 626         psIntfAdapter->bSuspended = FALSE;
 627
 628         StartInterruptUrb(psIntfAdapter);
 629         InterfaceRx(psIntfAdapter);
 630         return 0;
 631 }
 632
 633 static struct usb_driver usbbcm_driver = {
 634         .name = "usbbcm",
 635         .probe = usbbcm_device_probe,
 636         .disconnect = usbbcm_disconnect,
 637         .suspend = InterfaceSuspend,
 638         .resume = InterfaceResume,
 639         .id_table = InterfaceUsbtable,
 640         .supports_autosuspend = 1,
 641 };
 642
 643 struct class *bcm_class;
 644
 645 static __init int bcm_init(void)
 646 {
 647         printk(KERN_INFO "%s: %s, %s\n", DRV_NAME, DRV_DESCRIPTION, DRV_VERSION);
 648         printk(KERN_INFO "%s\n", DRV_COPYRIGHT);
 649
 650         bcm_class = class_create(THIS_MODULE, DRV_NAME);
 651         if (IS_ERR(bcm_class)) {
 652                 printk(KERN_ERR DRV_NAME ": could not create class\n");
 653                 return PTR_ERR(bcm_class);
 654         }
 655
 656         return usb_register(&usbbcm_driver);
 657 }
 658
 659 static __exit void bcm_exit(void)
 660 {
 661         class_destroy(bcm_class);
 662
 663         usb_deregister(&usbbcm_driver);
 664 }
 665
 666 module_init(bcm_init);
 667 module_exit(bcm_exit);
 668
 669 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 670 MODULE_VERSION(DRV_VERSION);
 671 MODULE_LICENSE("GPL");