2 * This file contains functions used in USB interface module.
4 #include <linux/delay.h>
5 #include <linux/moduleparam.h>
6 #include <linux/firmware.h>
7 #include <linux/netdevice.h>
8 #include <linux/list.h>
11 #define DRV_NAME "usb8xxx"
19 #define MESSAGE_HEADER_LEN 4
21 static const char usbdriver_name[] = "usb8xxx";
22 static u8 *default_fw_name = "usb8388.bin";
24 char *libertas_fw_name = NULL;
25 module_param_named(fw_name, libertas_fw_name, charp, 0644);
28 * We need to send a RESET command to all USB devices before
29 * we tear down the USB connection. Otherwise we would not
30 * be able to re-init device the device if the module gets
31 * loaded again. This is a list of all initialized USB devices,
32 * for the reset code see if_usb_reset_device()
34 static LIST_HEAD(usb_devices);
36 static struct usb_device_id if_usb_table[] = {
37 /* Enter the device signature inside */
38 { USB_DEVICE(0x1286, 0x2001) },
39 { USB_DEVICE(0x05a3, 0x8388) },
40 {} /* Terminating entry */
43 MODULE_DEVICE_TABLE(usb, if_usb_table);
45 static void if_usb_receive(struct urb *urb);
46 static void if_usb_receive_fwload(struct urb *urb);
47 static int if_usb_reset_device(wlan_private *priv);
48 static int if_usb_register_dev(wlan_private * priv);
49 static int if_usb_unregister_dev(wlan_private *);
50 static int if_usb_prog_firmware(wlan_private *);
51 static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb);
52 static int if_usb_get_int_status(wlan_private * priv, u8 *);
53 static int if_usb_read_event_cause(wlan_private *);
56 * @brief call back function to handle the status of the URB
57 * @param urb pointer to urb structure
60 static void if_usb_write_bulk_callback(struct urb *urb)
62 wlan_private *priv = (wlan_private *) (urb->context);
63 wlan_adapter *adapter = priv->adapter;
64 struct net_device *dev = priv->wlan_dev.netdev;
66 /* handle the transmission complete validations */
68 if (urb->status != 0) {
69 /* print the failure status number for debug */
70 lbs_pr_info("URB in failure status\n");
73 lbs_deb_usbd(&urb->dev->dev, "URB status is successfull\n");
74 lbs_deb_usbd(&urb->dev->dev, "Actual length transmitted %d\n",
77 priv->wlan_dev.dnld_sent = DNLD_RES_RECEIVED;
78 /* Wake main thread if commands are pending */
79 if (!adapter->cur_cmd)
80 wake_up_interruptible(&priv->mainthread.waitq);
81 if ((adapter->connect_status == libertas_connected)) {
82 netif_wake_queue(dev);
83 netif_wake_queue(priv->mesh_dev);
91 * @brief free tx/rx urb, skb and rx buffer
92 * @param cardp pointer usb_card_rec
95 void if_usb_free(struct usb_card_rec *cardp)
97 lbs_deb_enter(LBS_DEB_USB);
99 /* Unlink tx & rx urb */
100 usb_kill_urb(cardp->tx_urb);
101 usb_kill_urb(cardp->rx_urb);
103 usb_free_urb(cardp->tx_urb);
104 cardp->tx_urb = NULL;
106 usb_free_urb(cardp->rx_urb);
107 cardp->rx_urb = NULL;
109 kfree(cardp->bulk_out_buffer);
110 cardp->bulk_out_buffer = NULL;
112 lbs_deb_leave(LBS_DEB_USB);
116 * @brief sets the configuration values
117 * @param ifnum interface number
118 * @param id pointer to usb_device_id
119 * @return 0 on success, error code on failure
121 static int if_usb_probe(struct usb_interface *intf,
122 const struct usb_device_id *id)
124 struct usb_device *udev;
125 struct usb_host_interface *iface_desc;
126 struct usb_endpoint_descriptor *endpoint;
128 struct usb_card_rec *cardp;
131 udev = interface_to_usbdev(intf);
133 cardp = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL);
135 lbs_pr_err("Out of memory allocating private data.\n");
140 iface_desc = intf->cur_altsetting;
142 lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
143 " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
144 udev->descriptor.bcdUSB,
145 udev->descriptor.bDeviceClass,
146 udev->descriptor.bDeviceSubClass,
147 udev->descriptor.bDeviceProtocol);
149 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
150 endpoint = &iface_desc->endpoint[i].desc;
151 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
152 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
153 USB_ENDPOINT_XFER_BULK)) {
154 /* we found a bulk in endpoint */
155 lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n",
156 endpoint->wMaxPacketSize);
159 usb_alloc_urb(0, GFP_KERNEL))) {
160 lbs_deb_usbd(&udev->dev,
161 "Rx URB allocation failed\n");
164 cardp->rx_urb_recall = 0;
166 cardp->bulk_in_size =
167 endpoint->wMaxPacketSize;
168 cardp->bulk_in_endpointAddr =
170 bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
171 lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n",
172 endpoint->bEndpointAddress);
176 bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
178 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
179 USB_ENDPOINT_XFER_BULK)) {
180 /* We found bulk out endpoint */
183 usb_alloc_urb(0, GFP_KERNEL))) {
184 lbs_deb_usbd(&udev->dev,
185 "Tx URB allocation failed\n");
189 cardp->bulk_out_size =
190 endpoint->wMaxPacketSize;
191 lbs_deb_usbd(&udev->dev,
192 "Bulk out size is %d\n",
193 endpoint->wMaxPacketSize);
194 cardp->bulk_out_endpointAddr =
195 endpoint->bEndpointAddress;
196 lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n",
197 endpoint->bEndpointAddress);
198 cardp->bulk_out_buffer =
199 kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
202 if (!cardp->bulk_out_buffer) {
203 lbs_deb_usbd(&udev->dev,
204 "Could not allocate buffer\n");
211 /* At this point libertas_add_card() will be called. Don't worry
212 * about keeping pwlanpriv around since it will be set on our
213 * usb device data in -> add() -> hw_register_dev() -> if_usb_register_dev.
215 if (!(priv = libertas_add_card(cardp)))
218 if (libertas_add_mesh(priv))
221 priv->hw_register_dev = if_usb_register_dev;
222 priv->hw_unregister_dev = if_usb_unregister_dev;
223 priv->hw_prog_firmware = if_usb_prog_firmware;
224 priv->hw_host_to_card = if_usb_host_to_card;
225 priv->hw_get_int_status = if_usb_get_int_status;
226 priv->hw_read_event_cause = if_usb_read_event_cause;
228 if (libertas_activate_card(priv, libertas_fw_name))
229 goto err_activate_card;
231 list_add_tail(&cardp->list, &usb_devices);
234 usb_set_intfdata(intf, cardp);
239 unregister_netdev(priv->mesh_dev);
240 free_netdev(priv->mesh_dev);
242 free_netdev(priv->wlan_dev.netdev);
243 kfree(priv->adapter);
252 * @brief free resource and cleanup
253 * @param intf USB interface structure
256 static void if_usb_disconnect(struct usb_interface *intf)
258 struct usb_card_rec *cardp = usb_get_intfdata(intf);
259 wlan_private *priv = (wlan_private *) cardp->priv;
260 wlan_adapter *adapter = NULL;
262 adapter = priv->adapter;
265 * Update Surprise removed to TRUE
267 adapter->surpriseremoved = 1;
269 list_del(&cardp->list);
271 /* card is removed and we can call wlan_remove_card */
272 lbs_deb_usbd(&cardp->udev->dev, "call remove card\n");
273 libertas_remove_mesh(priv);
274 libertas_remove_card(priv);
276 /* Unlink and free urb */
279 usb_set_intfdata(intf, NULL);
280 usb_put_dev(interface_to_usbdev(intf));
286 * @brief This function download FW
287 * @param priv pointer to wlan_private
290 static int if_prog_firmware(wlan_private * priv)
292 struct usb_card_rec *cardp = priv->wlan_dev.card;
293 struct FWData *fwdata;
294 struct fwheader *fwheader;
295 u8 *firmware = priv->firmware->data;
297 fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC);
302 fwheader = &fwdata->fwheader;
304 if (!cardp->CRC_OK) {
305 cardp->totalbytes = cardp->fwlastblksent;
306 cardp->fwseqnum = cardp->lastseqnum - 1;
310 lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n",
314 memcpy(fwheader, &firmware[cardp->totalbytes],
315 sizeof(struct fwheader));
317 cardp->fwlastblksent = cardp->totalbytes;
318 cardp->totalbytes += sizeof(struct fwheader);
320 /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */
321 memcpy(fwdata->data, &firmware[cardp->totalbytes],
322 fwdata->fwheader.datalength);
325 lbs_deb_usbd(&cardp->udev->dev,
326 "Data length = %d\n", fwdata->fwheader.datalength);
329 cardp->fwseqnum = cardp->fwseqnum + 1;
331 fwdata->seqnum = cardp->fwseqnum;
332 cardp->lastseqnum = fwdata->seqnum;
333 cardp->totalbytes += fwdata->fwheader.datalength;
335 if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) {
337 lbs_deb_usbd(&cardp->udev->dev, "There is data to follow\n");
338 lbs_deb_usbd(&cardp->udev->dev,
339 "seqnum = %d totalbytes = %d\n", cardp->fwseqnum,
342 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
343 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
345 } else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) {
347 lbs_deb_usbd(&cardp->udev->dev,
348 "Host has finished FW downloading\n");
349 lbs_deb_usbd(&cardp->udev->dev,
350 "Donwloading FW JUMP BLOCK\n");
352 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
353 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
354 cardp->fwfinalblk = 1;
358 lbs_deb_usbd(&cardp->udev->dev,
359 "The firmware download is done size is %d\n",
368 static int libertas_do_reset(wlan_private *priv)
371 struct usb_card_rec *cardp = priv->wlan_dev.card;
373 lbs_deb_enter(LBS_DEB_USB);
375 ret = usb_reset_device(cardp->udev);
378 if_usb_reset_device(priv);
382 lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
388 * @brief This function transfer the data to the device.
389 * @param priv pointer to wlan_private
390 * @param payload pointer to payload data
391 * @param nb data length
394 int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb)
396 /* pointer to card structure */
397 struct usb_card_rec *cardp = priv->wlan_dev.card;
400 /* check if device is removed */
401 if (priv->adapter->surpriseremoved) {
402 lbs_deb_usbd(&cardp->udev->dev, "Device removed\n");
406 usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
407 usb_sndbulkpipe(cardp->udev,
408 cardp->bulk_out_endpointAddr),
409 payload, nb, if_usb_write_bulk_callback, priv);
411 cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
413 if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
414 /* transfer failed */
415 lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n");
418 /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */
426 static int __if_usb_submit_rx_urb(wlan_private * priv,
430 struct usb_card_rec *cardp = priv->wlan_dev.card;
432 struct read_cb_info *rinfo = &cardp->rinfo;
435 if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
436 lbs_pr_err("No free skb\n");
442 /* Fill the receive configuration URB and initialise the Rx call back */
443 usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
444 usb_rcvbulkpipe(cardp->udev,
445 cardp->bulk_in_endpointAddr),
446 (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET),
447 MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
450 cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
452 /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */
453 if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
454 /* handle failure conditions */
455 lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed\n");
458 /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */
466 static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv)
468 return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload);
471 static inline int if_usb_submit_rx_urb(wlan_private * priv)
473 return __if_usb_submit_rx_urb(priv, &if_usb_receive);
476 static void if_usb_receive_fwload(struct urb *urb)
478 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
479 wlan_private *priv = rinfo->priv;
480 struct sk_buff *skb = rinfo->skb;
481 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
482 struct fwsyncheader *syncfwheader;
483 struct bootcmdrespStr bootcmdresp;
486 lbs_deb_usbd(&cardp->udev->dev,
487 "URB status is failed during fw load\n");
492 if (cardp->bootcmdresp == 0) {
493 memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
494 sizeof(bootcmdresp));
495 if (cardp->udev->descriptor.bcdDevice < 0x3106) {
497 if_usb_submit_rx_urb_fwload(priv);
498 cardp->bootcmdresp = 1;
499 lbs_deb_usbd(&cardp->udev->dev,
500 "Received valid boot command response\n");
503 if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) {
505 "boot cmd response wrong magic number (0x%x)\n",
506 bootcmdresp.u32magicnumber);
507 } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) {
509 "boot cmd response cmd_tag error (%d)\n",
510 bootcmdresp.u8cmd_tag);
511 } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) {
513 "boot cmd response result error (%d)\n",
514 bootcmdresp.u8result);
516 cardp->bootcmdresp = 1;
517 lbs_deb_usbd(&cardp->udev->dev,
518 "Received valid boot command response\n");
521 if_usb_submit_rx_urb_fwload(priv);
525 syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
527 lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
532 memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET,
533 sizeof(struct fwsyncheader));
535 if (!syncfwheader->cmd) {
537 lbs_deb_usbd(&cardp->udev->dev,
538 "FW received Blk with correct CRC\n");
539 lbs_deb_usbd(&cardp->udev->dev,
540 "FW received Blk seqnum = %d\n",
541 syncfwheader->seqnum);
545 lbs_deb_usbd(&cardp->udev->dev,
546 "FW received Blk with CRC error\n");
552 if (cardp->fwfinalblk) {
553 cardp->fwdnldover = 1;
557 if_prog_firmware(priv);
559 if_usb_submit_rx_urb_fwload(priv);
567 #define MRVDRV_MIN_PKT_LEN 30
569 static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
570 struct usb_card_rec *cardp,
573 if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE +
574 MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) {
575 lbs_deb_usbd(&cardp->udev->dev,
576 "Packet length is Invalid\n");
581 skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
582 skb_put(skb, recvlength);
583 skb_pull(skb, MESSAGE_HEADER_LEN);
584 libertas_process_rxed_packet(priv, skb);
585 priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN);
588 static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
590 struct usb_card_rec *cardp,
594 if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) {
595 lbs_deb_usbd(&cardp->udev->dev,
596 "The receive buffer is too large\n");
604 spin_lock(&priv->adapter->driver_lock);
605 /* take care of cur_cmd = NULL case by reading the
606 * data to clear the interrupt */
607 if (!priv->adapter->cur_cmd) {
608 cmdbuf = priv->wlan_dev.upld_buf;
609 priv->adapter->hisregcpy &= ~his_cmdupldrdy;
611 cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr;
613 cardp->usb_int_cause |= his_cmdupldrdy;
614 priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN);
615 memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN,
616 priv->wlan_dev.upld_len);
619 libertas_interrupt(priv->wlan_dev.netdev);
620 spin_unlock(&priv->adapter->driver_lock);
622 lbs_deb_usbd(&cardp->udev->dev,
623 "Wake up main thread to handle cmd response\n");
629 * @brief This function reads of the packet into the upload buff,
630 * wake up the main thread and initialise the Rx callack.
632 * @param urb pointer to struct urb
635 static void if_usb_receive(struct urb *urb)
637 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
638 wlan_private *priv = rinfo->priv;
639 struct sk_buff *skb = rinfo->skb;
640 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
642 int recvlength = urb->actual_length;
646 lbs_deb_enter(LBS_DEB_USB);
650 lbs_deb_usbd(&cardp->udev->dev,
651 "URB status is failed\n");
656 recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
657 memcpy(&recvtype, recvbuff, sizeof(u32));
658 lbs_deb_usbd(&cardp->udev->dev,
659 "Recv length = 0x%x\n", recvlength);
660 lbs_deb_usbd(&cardp->udev->dev,
661 "Receive type = 0x%X\n", recvtype);
662 recvtype = le32_to_cpu(recvtype);
663 lbs_deb_usbd(&cardp->udev->dev,
664 "Receive type after = 0x%X\n", recvtype);
665 } else if (urb->status)
671 process_cmdtypedata(recvlength, skb, cardp, priv);
674 case CMD_TYPE_REQUEST:
675 process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
678 case CMD_TYPE_INDICATION:
679 /* Event cause handling */
680 spin_lock(&priv->adapter->driver_lock);
681 cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN);
682 lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n",
683 cardp->usb_event_cause);
684 if (cardp->usb_event_cause & 0xffff0000) {
685 libertas_send_tx_feedback(priv);
686 spin_unlock(&priv->adapter->driver_lock);
689 cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3;
690 cardp->usb_int_cause |= his_cardevent;
692 libertas_interrupt(priv->wlan_dev.netdev);
693 spin_unlock(&priv->adapter->driver_lock);
701 if_usb_submit_rx_urb(priv);
703 lbs_deb_leave(LBS_DEB_USB);
707 * @brief This function downloads data to FW
708 * @param priv pointer to wlan_private structure
709 * @param type type of data
710 * @param buf pointer to data buffer
711 * @param len number of bytes
714 static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb)
718 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
720 lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type);
721 lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb);
723 if (type == MVMS_CMD) {
724 tmp = cpu_to_le32(CMD_TYPE_REQUEST);
725 priv->wlan_dev.dnld_sent = DNLD_CMD_SENT;
726 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
730 tmp = cpu_to_le32(CMD_TYPE_DATA);
731 priv->wlan_dev.dnld_sent = DNLD_DATA_SENT;
732 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
736 memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb);
739 usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN);
744 /* called with adapter->driver_lock held */
745 static int if_usb_get_int_status(wlan_private * priv, u8 * ireg)
747 struct usb_card_rec *cardp = priv->wlan_dev.card;
749 *ireg = cardp->usb_int_cause;
750 cardp->usb_int_cause = 0;
752 lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg);
757 static int if_usb_read_event_cause(wlan_private * priv)
759 struct usb_card_rec *cardp = priv->wlan_dev.card;
760 priv->adapter->eventcause = cardp->usb_event_cause;
761 /* Re-submit rx urb here to avoid event lost issue */
762 if_usb_submit_rx_urb(priv);
766 static int if_usb_reset_device(wlan_private *priv)
770 lbs_deb_enter(LBS_DEB_USB);
771 ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset,
772 cmd_act_halt, 0, 0, NULL);
773 msleep_interruptible(10);
775 lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
779 static int if_usb_unregister_dev(wlan_private * priv)
783 /* Need to send a Reset command to device before USB resources freed
784 * and wlan_remove_card() called, then device can handle FW download
788 if_usb_reset_device(priv);
795 * @brief This function register usb device and initialize parameter
796 * @param priv pointer to wlan_private
799 static int if_usb_register_dev(wlan_private * priv)
801 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
803 lbs_deb_enter(LBS_DEB_USB);
806 cardp->eth_dev = priv->wlan_dev.netdev;
807 priv->hotplug_device = &(cardp->udev->dev);
809 SET_NETDEV_DEV(cardp->eth_dev, &(cardp->udev->dev));
810 SET_NETDEV_DEV(priv->mesh_dev, &(cardp->udev->dev));
812 lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n",
815 lbs_deb_leave(LBS_DEB_USB);
821 static int if_usb_prog_firmware(wlan_private * priv)
823 struct usb_card_rec *cardp = priv->wlan_dev.card;
825 static int reset_count = 10;
828 lbs_deb_enter(LBS_DEB_USB);
830 cardp->rinfo.priv = priv;
833 if (if_usb_submit_rx_urb_fwload(priv) < 0) {
834 lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
839 cardp->bootcmdresp = 0;
843 /* Issue Boot command = 1, Boot from Download-FW */
844 if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB);
845 /* wait for command response */
848 msleep_interruptible(100);
849 } while (cardp->bootcmdresp == 0 && j < 10);
850 } while (cardp->bootcmdresp == 0 && i < 5);
852 if (cardp->bootcmdresp == 0) {
853 if (--reset_count >= 0) {
854 libertas_do_reset(priv);
861 priv->adapter->fw_ready = 0;
863 cardp->totalbytes = 0;
864 cardp->fwlastblksent = 0;
866 cardp->fwdnldover = 0;
867 cardp->fwseqnum = -1;
868 cardp->totalbytes = 0;
869 cardp->fwfinalblk = 0;
871 if_prog_firmware(priv);
874 lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n");
876 msleep_interruptible(100);
877 if (priv->adapter->surpriseremoved || i >= 20)
879 } while (!cardp->fwdnldover);
881 if (!cardp->fwdnldover) {
882 lbs_pr_info("failed to load fw, resetting device!\n");
883 if (--reset_count >= 0) {
884 libertas_do_reset(priv);
888 lbs_pr_info("FW download failure, time = %d ms\n", i * 100);
893 if_usb_submit_rx_urb(priv);
895 /* Delay 200 ms to waiting for the FW ready */
896 msleep_interruptible(200);
898 priv->adapter->fw_ready = 1;
901 lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
906 static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
908 struct usb_card_rec *cardp = usb_get_intfdata(intf);
909 wlan_private *priv = cardp->priv;
911 lbs_deb_enter(LBS_DEB_USB);
913 if (priv->adapter->psstate != PS_STATE_FULL_POWER)
916 netif_device_detach(cardp->eth_dev);
917 netif_device_detach(priv->mesh_dev);
919 /* Unlink tx & rx urb */
920 usb_kill_urb(cardp->tx_urb);
921 usb_kill_urb(cardp->rx_urb);
923 cardp->rx_urb_recall = 1;
925 lbs_deb_leave(LBS_DEB_USB);
929 static int if_usb_resume(struct usb_interface *intf)
931 struct usb_card_rec *cardp = usb_get_intfdata(intf);
932 wlan_private *priv = cardp->priv;
934 lbs_deb_enter(LBS_DEB_USB);
936 cardp->rx_urb_recall = 0;
938 if_usb_submit_rx_urb(cardp->priv);
940 netif_device_attach(cardp->eth_dev);
941 netif_device_attach(priv->mesh_dev);
943 lbs_deb_leave(LBS_DEB_USB);
947 #define if_usb_suspend NULL
948 #define if_usb_resume NULL
951 static struct usb_driver if_usb_driver = {
953 .name = usbdriver_name,
954 /* probe function name */
955 .probe = if_usb_probe,
956 /* disconnect function name */
957 .disconnect = if_usb_disconnect,
958 /* device signature table */
959 .id_table = if_usb_table,
960 .suspend = if_usb_suspend,
961 .resume = if_usb_resume,
964 static int if_usb_init_module(void)
968 lbs_deb_enter(LBS_DEB_MAIN);
970 if (libertas_fw_name == NULL) {
971 libertas_fw_name = default_fw_name;
974 ret = usb_register(&if_usb_driver);
976 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
980 static void if_usb_exit_module(void)
982 struct list_head *ptr;
983 struct usb_card_rec *cardp;
985 lbs_deb_enter(LBS_DEB_MAIN);
987 list_for_each(ptr, &usb_devices) {
988 cardp = list_entry(ptr, struct usb_card_rec, list);
989 if_usb_reset_device((wlan_private *) cardp->priv);
992 /* API unregisters the driver from USB subsystem */
993 usb_deregister(&if_usb_driver);
995 lbs_deb_leave(LBS_DEB_MAIN);
998 module_init(if_usb_init_module);
999 module_exit(if_usb_exit_module);
1001 MODULE_DESCRIPTION("8388 USB WLAN Driver");
1002 MODULE_AUTHOR("Marvell International Ltd.");
1003 MODULE_LICENSE("GPL");