drivers/staging/bcm/InterfaceInit.c

   1 #include "headers.h"
   2 #include <linux/usb/ch9.h>
   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         struct bcm_mini_adapter *ps_ad = psIntfAdapter->psAdapter;
  32
  33         /* Wake up the wait_queue... */
  34         if (ps_ad->LEDInfo.led_thread_running &
  35                         BCM_LED_THREAD_RUNNING_ACTIVELY) {
  36                 ps_ad->DriverState = DRIVER_HALT;
  37                 wake_up(&ps_ad->LEDInfo.notify_led_event);
  38         }
  39         reset_card_proc(ps_ad);
  40
  41         /*
  42          * worst case time taken by the RDM/WRM will be 5 sec. will check after
  43          * every 100 ms to accertain the device is not being accessed. After
  44          * this No RDM/WRM should be made.
  45          */
  46         while (ps_ad->DeviceAccess) {
  47                 BCM_DEBUG_PRINT(ps_ad, DBG_TYPE_INITEXIT, DRV_ENTRY,
  48                                 DBG_LVL_ALL, "Device is being accessed.\n");
  49                 msleep(100);
  50         }
  51         /* Free interrupt URB */
  52         /* ps_ad->device_removed = TRUE; */
  53         usb_free_urb(psIntfAdapter->psInterruptUrb);
  54
  55         /* Free transmit URBs */
  56         for (i = 0; i < MAXIMUM_USB_TCB; i++) {
  57                 if (psIntfAdapter->asUsbTcb[i].urb  != NULL) {
  58                         usb_free_urb(psIntfAdapter->asUsbTcb[i].urb);
  59                         psIntfAdapter->asUsbTcb[i].urb = NULL;
  60                 }
  61         }
  62         /* Free receive URB and buffers */
  63         for (i = 0; i < MAXIMUM_USB_RCB; i++) {
  64                 if (psIntfAdapter->asUsbRcb[i].urb != NULL) {
  65                         kfree(psIntfAdapter->asUsbRcb[i].urb->transfer_buffer);
  66                         usb_free_urb(psIntfAdapter->asUsbRcb[i].urb);
  67                         psIntfAdapter->asUsbRcb[i].urb = NULL;
  68                 }
  69         }
  70         AdapterFree(ps_ad);
  71 }
  72
  73 static void ConfigureEndPointTypesThroughEEPROM(
  74                 struct bcm_mini_adapter *Adapter)
  75 {
  76         u32 ulReg;
  77         int bytes;
  78         struct bcm_interface_adapter *interfaceAdapter;
  79
  80         /* Program EP2 MAX_PKT_SIZE */
  81         ulReg = ntohl(EP2_MPS_REG);
  82         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x128, 4, TRUE);
  83         ulReg = ntohl(EP2_MPS);
  84         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x12C, 4, TRUE);
  85
  86         ulReg = ntohl(EP2_CFG_REG);
  87         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x132, 4, TRUE);
  88         interfaceAdapter =
  89                 (struct bcm_interface_adapter *)(Adapter->pvInterfaceAdapter);
  90         if (interfaceAdapter->bHighSpeedDevice) {
  91                 ulReg = ntohl(EP2_CFG_INT);
  92                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x136, 4, TRUE);
  93         } else {
  94                 /* USE BULK EP as TX in FS mode. */
  95                 ulReg = ntohl(EP2_CFG_BULK);
  96                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x136, 4, TRUE);
  97         }
  98
  99         /* Program EP4 MAX_PKT_SIZE. */
 100         ulReg = ntohl(EP4_MPS_REG);
 101         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x13C, 4, TRUE);
 102         ulReg = ntohl(EP4_MPS);
 103         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x140, 4, TRUE);
 104
 105         /* Program TX EP as interrupt(Alternate Setting) */
 106         bytes = rdmalt(Adapter, 0x0F0110F8, &ulReg, sizeof(u32));
 107         if (bytes < 0) {
 108                 BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, DRV_ENTRY,
 109                                 DBG_LVL_ALL, "reading of Tx EP failed\n");
 110                 return;
 111         }
 112         ulReg |= 0x6;
 113
 114         ulReg = ntohl(ulReg);
 115         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1CC, 4, TRUE);
 116
 117         ulReg = ntohl(EP4_CFG_REG);
 118         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1C8, 4, TRUE);
 119         /* Program ISOCHRONOUS EP size to zero. */
 120         ulReg = ntohl(ISO_MPS_REG);
 121         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1D2, 4, TRUE);
 122         ulReg = ntohl(ISO_MPS);
 123         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1D6, 4, TRUE);
 124
 125         /*
 126          * Update EEPROM Version.
 127          * Read 4 bytes from 508 and modify 511 and 510.
 128          */
 129         ReadBeceemEEPROM(Adapter, 0x1FC, &ulReg);
 130         ulReg &= 0x0101FFFF;
 131         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1FC, 4, TRUE);
 132
 133         /*
 134          * Update length field if required.
 135          * Also make the string NULL terminated.
 136          */
 137
 138         ReadBeceemEEPROM(Adapter, 0xA8, &ulReg);
 139         if ((ulReg&0x00FF0000)>>16 > 0x30) {
 140                 ulReg = (ulReg&0xFF00FFFF)|(0x30<<16);
 141                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0xA8, 4, TRUE);
 142         }
 143         ReadBeceemEEPROM(Adapter, 0x148, &ulReg);
 144         if ((ulReg&0x00FF0000)>>16 > 0x30) {
 145                 ulReg = (ulReg&0xFF00FFFF)|(0x30<<16);
 146                 BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x148, 4, TRUE);
 147         }
 148         ulReg = 0;
 149         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x122, 4, TRUE);
 150         ulReg = 0;
 151         BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1C2, 4, TRUE);
 152 }
 153
 154 static int usbbcm_device_probe(struct usb_interface *intf,
 155                                const struct usb_device_id *id)
 156 {
 157         struct usb_device *udev = interface_to_usbdev(intf);
 158         int retval;
 159         struct bcm_mini_adapter *psAdapter;
 160         struct bcm_interface_adapter *psIntfAdapter;
 161         struct net_device *ndev;
 162
 163         /* Reserve one extra queue for the bit-bucket */
 164         ndev = alloc_etherdev_mq(sizeof(struct bcm_mini_adapter),
 165                         NO_OF_QUEUES + 1);
 166         if (ndev == NULL) {
 167                 dev_err(&udev->dev, DRV_NAME ": no memory for device\n");
 168                 return -ENOMEM;
 169         }
 170
 171         SET_NETDEV_DEV(ndev, &intf->dev);
 172
 173         psAdapter = netdev_priv(ndev);
 174         psAdapter->dev = ndev;
 175         psAdapter->msg_enable = netif_msg_init(debug, default_msg);
 176
 177         /* Init default driver debug state */
 178
 179         psAdapter->stDebugState.debug_level = DBG_LVL_CURR;
 180         psAdapter->stDebugState.type = DBG_TYPE_INITEXIT;
 181
 182         /*
 183          * Technically, one can start using BCM_DEBUG_PRINT after this point.
 184          * However, realize that by default the Type/Subtype bitmaps are all
 185          * zero now; so no prints will actually appear until the TestApp turns
 186          * on debug paths via the ioctl(); so practically speaking, in early
 187          * init, no logging happens.
 188          *
 189          * A solution (used below): we explicitly set the bitmaps to 1 for
 190          * Type=DBG_TYPE_INITEXIT and ALL subtype's of the same. Now all bcm
 191          * debug statements get logged, enabling debug during early init.
 192          * Further, we turn this OFF once init_module() completes.
 193          */
 194
 195         psAdapter->stDebugState.subtype[DBG_TYPE_INITEXIT] = 0xff;
 196         BCM_SHOW_DEBUG_BITMAP(psAdapter);
 197
 198         retval = InitAdapter(psAdapter);
 199         if (retval) {
 200                 dev_err(&udev->dev, DRV_NAME ": InitAdapter Failed\n");
 201                 AdapterFree(psAdapter);
 202                 return retval;
 203         }
 204
 205         /* Allocate interface adapter structure */
 206         psIntfAdapter = kzalloc(sizeof(struct bcm_interface_adapter),
 207                         GFP_KERNEL);
 208         if (psIntfAdapter == NULL) {
 209                 AdapterFree(psAdapter);
 210                 return -ENOMEM;
 211         }
 212
 213         psAdapter->pvInterfaceAdapter = psIntfAdapter;
 214         psIntfAdapter->psAdapter = psAdapter;
 215
 216         /* Store usb interface in Interface Adapter */
 217         psIntfAdapter->interface = intf;
 218         usb_set_intfdata(intf, psIntfAdapter);
 219
 220         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 221                         "psIntfAdapter 0x%p\n", psIntfAdapter);
 222         retval = InterfaceAdapterInit(psIntfAdapter);
 223         if (retval) {
 224                 /* If the Firmware/Cfg File is not present
 225                  * then return success, let the application
 226                  * download the files.
 227                  */
 228                 if (-ENOENT == retval) {
 229                         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY,
 230                                         DBG_LVL_ALL,
 231                                         "File Not Found.  Use app to download.\n");
 232                         return STATUS_SUCCESS;
 233                 }
 234                 BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY,
 235                                 DBG_LVL_ALL, "InterfaceAdapterInit failed.\n");
 236                 usb_set_intfdata(intf, NULL);
 237                 udev = interface_to_usbdev(intf);
 238                 usb_put_dev(udev);
 239                 InterfaceAdapterFree(psIntfAdapter);
 240                 return retval;
 241         }
 242         if (psAdapter->chip_id > T3) {
 243                 uint32_t uiNackZeroLengthInt = 4;
 244
 245                 retval =
 246                         wrmalt(psAdapter, DISABLE_USB_ZERO_LEN_INT,
 247                                         &uiNackZeroLengthInt,
 248                                         sizeof(uiNackZeroLengthInt));
 249                 if (retval)
 250                         return retval;
 251         }
 252
 253         /* Check whether the USB-Device Supports remote Wake-Up */
 254         if (USB_CONFIG_ATT_WAKEUP & udev->actconfig->desc.bmAttributes) {
 255                 /* If Suspend then only support dynamic suspend */
 256                 if (psAdapter->bDoSuspend) {
 257 #ifdef CONFIG_PM
 258                         pm_runtime_set_autosuspend_delay(&udev->dev, 0);
 259                         intf->needs_remote_wakeup = 1;
 260                         usb_enable_autosuspend(udev);
 261                         device_init_wakeup(&intf->dev, 1);
 262                         INIT_WORK(&psIntfAdapter->usbSuspendWork,
 263                                         putUsbSuspend);
 264                         BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY,
 265                                         DBG_LVL_ALL,
 266                                         "Enabling USB Auto-Suspend\n");
 267 #endif
 268                 } else {
 269                         intf->needs_remote_wakeup = 0;
 270                         usb_disable_autosuspend(udev);
 271                 }
 272         }
 273
 274         psAdapter->stDebugState.subtype[DBG_TYPE_INITEXIT] = 0x0;
 275         return retval;
 276 }
 277
 278 static void usbbcm_disconnect(struct usb_interface *intf)
 279 {
 280         struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);
 281         struct bcm_mini_adapter *psAdapter;
 282         struct usb_device  *udev = interface_to_usbdev(intf);
 283
 284         if (psIntfAdapter == NULL)
 285                 return;
 286
 287         psAdapter = psIntfAdapter->psAdapter;
 288         netif_device_detach(psAdapter->dev);
 289
 290         if (psAdapter->bDoSuspend)
 291                 intf->needs_remote_wakeup = 0;
 292
 293         psAdapter->device_removed = TRUE;
 294         usb_set_intfdata(intf, NULL);
 295         InterfaceAdapterFree(psIntfAdapter);
 296         usb_put_dev(udev);
 297 }
 298
 299 static int AllocUsbCb(struct bcm_interface_adapter *psIntfAdapter)
 300 {
 301         int i = 0;
 302
 303         for (i = 0; i < MAXIMUM_USB_TCB; i++) {
 304                 psIntfAdapter->asUsbTcb[i].urb = usb_alloc_urb(0, GFP_KERNEL);
 305
 306                 if (psIntfAdapter->asUsbTcb[i].urb == NULL) {
 307                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
 308                                         DBG_TYPE_PRINTK, 0, 0,
 309                                         "Can't allocate Tx urb for index %d\n",
 310                                         i);
 311                         return -ENOMEM;
 312                 }
 313         }
 314
 315         for (i = 0; i < MAXIMUM_USB_RCB; i++) {
 316                 psIntfAdapter->asUsbRcb[i].urb = usb_alloc_urb(0, GFP_KERNEL);
 317
 318                 if (psIntfAdapter->asUsbRcb[i].urb == NULL) {
 319                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
 320                                         DBG_TYPE_PRINTK, 0, 0,
 321                                         "Can't allocate Rx urb for index %d\n",
 322                                         i);
 323                         return -ENOMEM;
 324                 }
 325
 326                 psIntfAdapter->asUsbRcb[i].urb->transfer_buffer =
 327                         kmalloc(MAX_DATA_BUFFER_SIZE, GFP_KERNEL);
 328
 329                 if (psIntfAdapter->asUsbRcb[i].urb->transfer_buffer == NULL) {
 330                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
 331                                         DBG_TYPE_PRINTK, 0, 0,
 332                                         "Can't allocate Rx buffer for index %d\n",
 333                                         i);
 334                         return -ENOMEM;
 335                 }
 336                 psIntfAdapter->asUsbRcb[i].urb->transfer_buffer_length =
 337                         MAX_DATA_BUFFER_SIZE;
 338         }
 339         return 0;
 340 }
 341
 342 static int device_run(struct bcm_interface_adapter *psIntfAdapter)
 343 {
 344         int value = 0;
 345         UINT status = STATUS_SUCCESS;
 346         struct bcm_mini_adapter *psAd = psIntfAdapter->psAdapter;
 347
 348         status = InitCardAndDownloadFirmware(psAd);
 349         if (status != STATUS_SUCCESS) {
 350                 pr_err(DRV_NAME "InitCardAndDownloadFirmware failed.\n");
 351                 return status;
 352         }
 353         if (psAd->fw_download_done) {
 354                 if (StartInterruptUrb(psIntfAdapter)) {
 355                         BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT, DRV_ENTRY,
 356                                         DBG_LVL_ALL,
 357                                         "Cannot send interrupt in URB\n");
 358                 }
 359
 360                 /*
 361                  * now register the cntrl interface.  after downloading the f/w
 362                  * waiting for 5 sec to get the mailbox interrupt.
 363                  */
 364                 psAd->waiting_to_fw_download_done = false;
 365                 value = wait_event_timeout(psAd->ioctl_fw_dnld_wait_queue,
 366                                            psAd->waiting_to_fw_download_done,
 367                                            5 * HZ);
 368
 369                 if (value == 0)
 370                         pr_err(DRV_NAME ": Timeout waiting for mailbox interrupt.\n");
 371
 372                 if (register_control_device_interface(psAd) < 0) {
 373                         pr_err(DRV_NAME ": Register Control Device failed.\n");
 374                         return -EIO;
 375                 }
 376         }
 377         return 0;
 378 }
 379
 380 static int select_alternate_setting_for_highspeed_modem(
 381                 struct bcm_interface_adapter *psIntfAdapter,
 382                 struct usb_endpoint_descriptor **endpoint,
 383                 const struct usb_host_interface *iface_desc,
 384                 int *usedIntOutForBulkTransfer)
 385 {
 386         int retval = 0;
 387         struct bcm_mini_adapter *psAd = psIntfAdapter->psAdapter;
 388
 389         /* selecting alternate setting one as a default setting
 390          * for High Speed  modem. */
 391         if (psIntfAdapter->bHighSpeedDevice)
 392                 retval = usb_set_interface(psIntfAdapter->udev,
 393                                            DEFAULT_SETTING_0,
 394                                            ALTERNATE_SETTING_1);
 395         BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 396                         "BCM16 is applicable on this dongle\n");
 397         if (retval || !psIntfAdapter->bHighSpeedDevice) {
 398                 *usedIntOutForBulkTransfer = EP2;
 399                 *endpoint = &iface_desc->endpoint[EP2].desc;
 400                 BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 401                                 "Interface altsetting failed or modem is configured to Full Speed, hence will work on default setting 0\n");
 402                 /*
 403                  * If Modem is high speed device EP2 should be
 404                  * INT OUT End point
 405                  *
 406                  * If Mode is FS then EP2 should be bulk end
 407                  * point
 408                  */
 409                 if ((psIntfAdapter->bHighSpeedDevice &&
 410                                         !usb_endpoint_is_int_out(*endpoint)) ||
 411                                 (!psIntfAdapter->bHighSpeedDevice &&
 412                                  !usb_endpoint_is_bulk_out(*endpoint))) {
 413                         BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT, DRV_ENTRY,
 414                                         DBG_LVL_ALL,
 415                                         "Configuring the EEPROM\n");
 416                         /* change the EP2, EP4 to INT OUT end point */
 417                         ConfigureEndPointTypesThroughEEPROM(
 418                                         psAd);
 419
 420                         /*
 421                          * It resets the device and if any thing
 422                          * gets changed in USB descriptor it
 423                          * will show fail and re-enumerate the
 424                          * device
 425                          */
 426                         retval = usb_reset_device(psIntfAdapter->udev);
 427                         if (retval) {
 428                                 BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT,
 429                                                 DRV_ENTRY, DBG_LVL_ALL,
 430                                                 "reset failed.  Re-enumerating the device.\n");
 431                                 return retval;
 432                         }
 433
 434                 }
 435                 if (!psIntfAdapter->bHighSpeedDevice &&
 436                     usb_endpoint_is_bulk_out(*endpoint)) {
 437                         /*
 438                          * Once BULK is selected in FS mode.
 439                          * Revert it back to INT.
 440                          * Else USB_IF will fail.
 441                          */
 442                         UINT _uiData = ntohl(EP2_CFG_INT);
 443
 444                         BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT, DRV_ENTRY,
 445                                         DBG_LVL_ALL,
 446                                         "Reverting Bulk to INT as it is in Full Speed mode.\n");
 447                         BeceemEEPROMBulkWrite(psAd, (PUCHAR) & _uiData, 0x136,
 448                                               4, TRUE);
 449                 }
 450         } else {
 451                 *usedIntOutForBulkTransfer = EP4;
 452                 *endpoint = &iface_desc->endpoint[EP4].desc;
 453                 BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 454                                 "Choosing AltSetting as a default setting.\n");
 455                 if (!usb_endpoint_is_int_out(*endpoint)) {
 456                         BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT, DRV_ENTRY,
 457                                         DBG_LVL_ALL,
 458                                         "Dongle does not have BCM16 Fix.\n");
 459                         /*
 460                          * change the EP2, EP4 to INT OUT end point and use EP4
 461                          * in altsetting
 462                          */
 463                         ConfigureEndPointTypesThroughEEPROM(psAd);
 464
 465                         /*
 466                          * It resets the device and if any thing
 467                          * gets changed in USB descriptor it
 468                          * will show fail and re-enumerate the
 469                          * device
 470                          */
 471                         retval = usb_reset_device(psIntfAdapter->udev);
 472                         if (retval) {
 473                                 BCM_DEBUG_PRINT(psAd, DBG_TYPE_INITEXIT,
 474                                                 DRV_ENTRY, DBG_LVL_ALL,
 475                                                 "reset failed.  Re-enumerating the device.\n");
 476                                 return retval;
 477                         }
 478                 }
 479         }
 480
 481         return 0;
 482 }
 483
 484 static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
 485 {
 486         struct usb_host_interface *iface_desc;
 487         struct usb_endpoint_descriptor *endpoint;
 488         size_t buffer_size;
 489         unsigned long value;
 490         int retval = 0;
 491         int usedIntOutForBulkTransfer = 0;
 492         bool bBcm16 = false;
 493         UINT uiData = 0;
 494         int bytes;
 495         struct bcm_mini_adapter *psAd = psIntfAdapter->psAdapter;
 496
 497         /* Store the usb dev into interface adapter */
 498         psIntfAdapter->udev =
 499                 usb_get_dev(interface_to_usbdev(psIntfAdapter->interface));
 500
 501         psIntfAdapter->bHighSpeedDevice =
 502                 (psIntfAdapter->udev->speed == USB_SPEED_HIGH);
 503         psAd->interface_rdm = BcmRDM;
 504         psAd->interface_wrm = BcmWRM;
 505
 506         bytes = rdmalt(psAd, CHIP_ID_REG, (u32 *) &(psAd->chip_id),
 507                        sizeof(u32));
 508         if (bytes < 0) {
 509                 retval = bytes;
 510                 BCM_DEBUG_PRINT(psAd, DBG_TYPE_PRINTK, 0, 0,
 511                                 "CHIP ID Read Failed\n");
 512                 return retval;
 513         }
 514
 515         if (0xbece3200 == (psAd->chip_id & ~(0xF0)))
 516                 psAd->chip_id &= ~0xF0;
 517
 518         dev_info(&psIntfAdapter->udev->dev, "RDM Chip ID 0x%lx\n",
 519                  psAd->chip_id);
 520
 521         iface_desc = psIntfAdapter->interface->cur_altsetting;
 522
 523         if (psAd->chip_id == T3B) {
 524                 /* T3B device will have EEPROM, check if EEPROM is proper and
 525                  * BCM16 can be done or not. */
 526                 BeceemEEPROMBulkRead(psAd, &uiData, 0x0, 4);
 527                 if (uiData == BECM)
 528                         bBcm16 = TRUE;
 529
 530                 dev_info(&psIntfAdapter->udev->dev,
 531                          "number of alternate setting %d\n",
 532                          psIntfAdapter->interface->num_altsetting);
 533
 534                 if (bBcm16 == TRUE) {
 535                         retval = select_alternate_setting_for_highspeed_modem(
 536                                         psIntfAdapter, &endpoint, iface_desc,
 537                                         &usedIntOutForBulkTransfer);
 538                         if (retval)
 539                                 return retval;
 540                 }
 541         }
 542
 543         iface_desc = psIntfAdapter->interface->cur_altsetting;
 544
 545         for (value = 0; value < iface_desc->desc.bNumEndpoints; ++value) {
 546                 endpoint = &iface_desc->endpoint[value].desc;
 547
 548                 if (!psIntfAdapter->sBulkIn.bulk_in_endpointAddr &&
 549                                 usb_endpoint_is_bulk_in(endpoint)) {
 550                         buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 551                         psIntfAdapter->sBulkIn.bulk_in_size = buffer_size;
 552                         psIntfAdapter->sBulkIn.bulk_in_endpointAddr =
 553                                 endpoint->bEndpointAddress;
 554                         psIntfAdapter->sBulkIn.bulk_in_pipe = usb_rcvbulkpipe(
 555                                         psIntfAdapter->udev,
 556                                         psIntfAdapter->sBulkIn.bulk_in_endpointAddr);
 557                 }
 558
 559                 if (!psIntfAdapter->sBulkOut.bulk_out_endpointAddr &&
 560                                 usb_endpoint_is_bulk_out(endpoint)) {
 561                         psIntfAdapter->sBulkOut.bulk_out_endpointAddr =
 562                                 endpoint->bEndpointAddress;
 563                         psIntfAdapter->sBulkOut.bulk_out_pipe = usb_sndbulkpipe(
 564                                         psIntfAdapter->udev,
 565                                         psIntfAdapter->sBulkOut.bulk_out_endpointAddr);
 566                 }
 567
 568                 if (!psIntfAdapter->sIntrIn.int_in_endpointAddr &&
 569                                 usb_endpoint_is_int_in(endpoint)) {
 570                         buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
 571                         psIntfAdapter->sIntrIn.int_in_size = buffer_size;
 572                         psIntfAdapter->sIntrIn.int_in_endpointAddr =
 573                                 endpoint->bEndpointAddress;
 574                         psIntfAdapter->sIntrIn.int_in_interval =
 575                                 endpoint->bInterval;
 576                         psIntfAdapter->sIntrIn.int_in_buffer =
 577                                 kmalloc(buffer_size, GFP_KERNEL);
 578                         if (!psIntfAdapter->sIntrIn.int_in_buffer)
 579                                 return -EINVAL;
 580                 }
 581
 582                 if (!psIntfAdapter->sIntrOut.int_out_endpointAddr &&
 583                                 usb_endpoint_is_int_out(endpoint)) {
 584                         if (!psIntfAdapter->sBulkOut.bulk_out_endpointAddr &&
 585                                         (psAd->chip_id == T3B) &&
 586                                         (value == usedIntOutForBulkTransfer)) {
 587                                 /*
 588                                  * use first intout end point as a bulk out end
 589                                  * point
 590                                  */
 591                                 buffer_size =
 592                                         le16_to_cpu(endpoint->wMaxPacketSize);
 593                                 psIntfAdapter->sBulkOut.bulk_out_size =
 594                                         buffer_size;
 595                                 psIntfAdapter->sBulkOut.bulk_out_endpointAddr =
 596                                         endpoint->bEndpointAddress;
 597                                 psIntfAdapter->sBulkOut.bulk_out_pipe =
 598                                         usb_sndintpipe(psIntfAdapter->udev,
 599                                                         psIntfAdapter->sBulkOut
 600                                                         .bulk_out_endpointAddr);
 601                                 psIntfAdapter->sBulkOut.int_out_interval =
 602                                         endpoint->bInterval;
 603                         } else if (value == EP6) {
 604                                 buffer_size =
 605                                         le16_to_cpu(endpoint->wMaxPacketSize);
 606                                 psIntfAdapter->sIntrOut.int_out_size =
 607                                         buffer_size;
 608                                 psIntfAdapter->sIntrOut.int_out_endpointAddr =
 609                                         endpoint->bEndpointAddress;
 610                                 psIntfAdapter->sIntrOut.int_out_interval =
 611                                         endpoint->bInterval;
 612                                 psIntfAdapter->sIntrOut.int_out_buffer =
 613                                         kmalloc(buffer_size, GFP_KERNEL);
 614                                 if (!psIntfAdapter->sIntrOut.int_out_buffer)
 615                                         return -EINVAL;
 616                         }
 617                 }
 618         }
 619
 620         usb_set_intfdata(psIntfAdapter->interface, psIntfAdapter);
 621
 622         psAd->bcm_file_download = InterfaceFileDownload;
 623         psAd->bcm_file_readback_from_chip = InterfaceFileReadbackFromChip;
 624         psAd->interface_transmit = InterfaceTransmitPacket;
 625
 626         retval = CreateInterruptUrb(psIntfAdapter);
 627
 628         if (retval) {
 629                 BCM_DEBUG_PRINT(psAd, DBG_TYPE_PRINTK, 0, 0,
 630                                 "Cannot create interrupt urb\n");
 631                 return retval;
 632         }
 633
 634         retval = AllocUsbCb(psIntfAdapter);
 635         if (retval)
 636                 return retval;
 637
 638         return device_run(psIntfAdapter);
 639 }
 640
 641 static int InterfaceSuspend(struct usb_interface *intf, pm_message_t message)
 642 {
 643         struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);
 644
 645         psIntfAdapter->bSuspended = TRUE;
 646
 647         if (psIntfAdapter->bPreparingForBusSuspend) {
 648                 psIntfAdapter->bPreparingForBusSuspend = false;
 649
 650                 if (psIntfAdapter->psAdapter->LinkStatus == LINKUP_DONE) {
 651                         psIntfAdapter->psAdapter->IdleMode = TRUE;
 652                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
 653                                         DBG_TYPE_INITEXIT, DRV_ENTRY,
 654                                         DBG_LVL_ALL,
 655                                         "Host Entered in PMU Idle Mode.\n");
 656                 } else {
 657                         psIntfAdapter->psAdapter->bShutStatus = TRUE;
 658                         BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
 659                                         DBG_TYPE_INITEXIT, DRV_ENTRY,
 660                                         DBG_LVL_ALL,
 661                                         "Host Entered in PMU Shutdown Mode.\n");
 662                 }
 663         }
 664         psIntfAdapter->psAdapter->bPreparingForLowPowerMode = false;
 665
 666         /* Signaling the control pkt path */
 667         wake_up(&psIntfAdapter->psAdapter->lowpower_mode_wait_queue);
 668
 669         return 0;
 670 }
 671
 672 static int InterfaceResume(struct usb_interface *intf)
 673 {
 674         struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);
 675
 676         mdelay(100);
 677         psIntfAdapter->bSuspended = false;
 678
 679         StartInterruptUrb(psIntfAdapter);
 680         InterfaceRx(psIntfAdapter);
 681         return 0;
 682 }
 683
 684 static struct usb_driver usbbcm_driver = {
 685         .name = "usbbcm",
 686         .probe = usbbcm_device_probe,
 687         .disconnect = usbbcm_disconnect,
 688         .suspend = InterfaceSuspend,
 689         .resume = InterfaceResume,
 690         .id_table = InterfaceUsbtable,
 691         .supports_autosuspend = 1,
 692 };
 693
 694 struct class *bcm_class;
 695
 696 static __init int bcm_init(void)
 697 {
 698         int retval;
 699
 700         pr_info("%s: %s, %s\n", DRV_NAME, DRV_DESCRIPTION, DRV_VERSION);
 701         pr_info("%s\n", DRV_COPYRIGHT);
 702
 703         bcm_class = class_create(THIS_MODULE, DRV_NAME);
 704         if (IS_ERR(bcm_class)) {
 705                 pr_err(DRV_NAME ": could not create class\n");
 706                 return PTR_ERR(bcm_class);
 707         }
 708
 709         retval = usb_register(&usbbcm_driver);
 710         if (retval < 0) {
 711                 pr_err(DRV_NAME ": could not register usb driver\n");
 712                 class_destroy(bcm_class);
 713                 return retval;
 714         }
 715         return 0;
 716 }
 717
 718 static __exit void bcm_exit(void)
 719 {
 720         usb_deregister(&usbbcm_driver);
 721         class_destroy(bcm_class);
 722 }
 723
 724 module_init(bcm_init);
 725 module_exit(bcm_exit);
 726
 727 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 728 MODULE_VERSION(DRV_VERSION);
 729 MODULE_LICENSE("GPL");