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->dev;
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: %d\n", urb->status);
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->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");
210 if (!(priv = libertas_add_card(cardp, &udev->dev)))
213 if (libertas_add_mesh(priv, &udev->dev))
216 priv->hw_register_dev = if_usb_register_dev;
217 priv->hw_unregister_dev = if_usb_unregister_dev;
218 priv->hw_prog_firmware = if_usb_prog_firmware;
219 priv->hw_host_to_card = if_usb_host_to_card;
220 priv->hw_get_int_status = if_usb_get_int_status;
221 priv->hw_read_event_cause = if_usb_read_event_cause;
223 if (libertas_activate_card(priv, libertas_fw_name))
224 goto err_activate_card;
226 list_add_tail(&cardp->list, &usb_devices);
229 usb_set_intfdata(intf, cardp);
234 unregister_netdev(priv->mesh_dev);
235 free_netdev(priv->mesh_dev);
237 free_netdev(priv->dev);
238 kfree(priv->adapter);
247 * @brief free resource and cleanup
248 * @param intf USB interface structure
251 static void if_usb_disconnect(struct usb_interface *intf)
253 struct usb_card_rec *cardp = usb_get_intfdata(intf);
254 wlan_private *priv = (wlan_private *) cardp->priv;
255 wlan_adapter *adapter = NULL;
257 adapter = priv->adapter;
260 * Update Surprise removed to TRUE
262 adapter->surpriseremoved = 1;
264 list_del(&cardp->list);
266 /* card is removed and we can call wlan_remove_card */
267 lbs_deb_usbd(&cardp->udev->dev, "call remove card\n");
268 libertas_remove_mesh(priv);
269 libertas_remove_card(priv);
271 /* Unlink and free urb */
274 usb_set_intfdata(intf, NULL);
275 usb_put_dev(interface_to_usbdev(intf));
281 * @brief This function download FW
282 * @param priv pointer to wlan_private
285 static int if_prog_firmware(wlan_private * priv)
287 struct usb_card_rec *cardp = priv->card;
288 struct FWData *fwdata;
289 struct fwheader *fwheader;
290 u8 *firmware = priv->firmware->data;
292 fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC);
297 fwheader = &fwdata->fwheader;
299 if (!cardp->CRC_OK) {
300 cardp->totalbytes = cardp->fwlastblksent;
301 cardp->fwseqnum = cardp->lastseqnum - 1;
305 lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n",
309 memcpy(fwheader, &firmware[cardp->totalbytes],
310 sizeof(struct fwheader));
312 cardp->fwlastblksent = cardp->totalbytes;
313 cardp->totalbytes += sizeof(struct fwheader);
315 /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */
316 memcpy(fwdata->data, &firmware[cardp->totalbytes],
317 fwdata->fwheader.datalength);
320 lbs_deb_usbd(&cardp->udev->dev,
321 "Data length = %d\n", fwdata->fwheader.datalength);
324 cardp->fwseqnum = cardp->fwseqnum + 1;
326 fwdata->seqnum = cardp->fwseqnum;
327 cardp->lastseqnum = fwdata->seqnum;
328 cardp->totalbytes += fwdata->fwheader.datalength;
330 if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) {
332 lbs_deb_usbd(&cardp->udev->dev, "There is data to follow\n");
333 lbs_deb_usbd(&cardp->udev->dev,
334 "seqnum = %d totalbytes = %d\n", cardp->fwseqnum,
337 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
338 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
340 } else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) {
342 lbs_deb_usbd(&cardp->udev->dev,
343 "Host has finished FW downloading\n");
344 lbs_deb_usbd(&cardp->udev->dev,
345 "Donwloading FW JUMP BLOCK\n");
347 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
348 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
349 cardp->fwfinalblk = 1;
353 lbs_deb_usbd(&cardp->udev->dev,
354 "The firmware download is done size is %d\n",
363 static int libertas_do_reset(wlan_private *priv)
366 struct usb_card_rec *cardp = priv->card;
368 lbs_deb_enter(LBS_DEB_USB);
370 ret = usb_reset_device(cardp->udev);
373 if_usb_reset_device(priv);
377 lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
383 * @brief This function transfer the data to the device.
384 * @param priv pointer to wlan_private
385 * @param payload pointer to payload data
386 * @param nb data length
389 int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb)
391 /* pointer to card structure */
392 struct usb_card_rec *cardp = priv->card;
395 /* check if device is removed */
396 if (priv->adapter->surpriseremoved) {
397 lbs_deb_usbd(&cardp->udev->dev, "Device removed\n");
401 usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
402 usb_sndbulkpipe(cardp->udev,
403 cardp->bulk_out_endpointAddr),
404 payload, nb, if_usb_write_bulk_callback, priv);
406 cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
408 if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
409 /* transfer failed */
410 lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n");
413 /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */
421 static int __if_usb_submit_rx_urb(wlan_private * priv,
425 struct usb_card_rec *cardp = priv->card;
427 struct read_cb_info *rinfo = &cardp->rinfo;
430 if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
431 lbs_pr_err("No free skb\n");
437 /* Fill the receive configuration URB and initialise the Rx call back */
438 usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
439 usb_rcvbulkpipe(cardp->udev,
440 cardp->bulk_in_endpointAddr),
441 (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET),
442 MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
445 cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
447 /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */
448 if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
449 /* handle failure conditions */
450 lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed\n");
453 /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */
461 static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv)
463 return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload);
466 static inline int if_usb_submit_rx_urb(wlan_private * priv)
468 return __if_usb_submit_rx_urb(priv, &if_usb_receive);
471 static void if_usb_receive_fwload(struct urb *urb)
473 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
474 wlan_private *priv = rinfo->priv;
475 struct sk_buff *skb = rinfo->skb;
476 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
477 struct fwsyncheader *syncfwheader;
478 struct bootcmdrespStr bootcmdresp;
481 lbs_deb_usbd(&cardp->udev->dev,
482 "URB status is failed during fw load\n");
487 if (cardp->bootcmdresp == 0) {
488 memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
489 sizeof(bootcmdresp));
490 if (cardp->udev->descriptor.bcdDevice < 0x3106) {
492 if_usb_submit_rx_urb_fwload(priv);
493 cardp->bootcmdresp = 1;
494 lbs_deb_usbd(&cardp->udev->dev,
495 "Received valid boot command response\n");
498 if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) {
500 "boot cmd response wrong magic number (0x%x)\n",
501 bootcmdresp.u32magicnumber);
502 } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) {
504 "boot cmd response cmd_tag error (%d)\n",
505 bootcmdresp.u8cmd_tag);
506 } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) {
508 "boot cmd response result error (%d)\n",
509 bootcmdresp.u8result);
511 cardp->bootcmdresp = 1;
512 lbs_deb_usbd(&cardp->udev->dev,
513 "Received valid boot command response\n");
516 if_usb_submit_rx_urb_fwload(priv);
520 syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
522 lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
527 memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET,
528 sizeof(struct fwsyncheader));
530 if (!syncfwheader->cmd) {
532 lbs_deb_usbd(&cardp->udev->dev,
533 "FW received Blk with correct CRC\n");
534 lbs_deb_usbd(&cardp->udev->dev,
535 "FW received Blk seqnum = %d\n",
536 syncfwheader->seqnum);
540 lbs_deb_usbd(&cardp->udev->dev,
541 "FW received Blk with CRC error\n");
547 if (cardp->fwfinalblk) {
548 cardp->fwdnldover = 1;
552 if_prog_firmware(priv);
554 if_usb_submit_rx_urb_fwload(priv);
562 #define MRVDRV_MIN_PKT_LEN 30
564 static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
565 struct usb_card_rec *cardp,
568 if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE +
569 MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) {
570 lbs_deb_usbd(&cardp->udev->dev,
571 "Packet length is Invalid\n");
576 skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
577 skb_put(skb, recvlength);
578 skb_pull(skb, MESSAGE_HEADER_LEN);
579 libertas_process_rxed_packet(priv, skb);
580 priv->upld_len = (recvlength - MESSAGE_HEADER_LEN);
583 static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
585 struct usb_card_rec *cardp,
589 if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) {
590 lbs_deb_usbd(&cardp->udev->dev,
591 "The receive buffer is too large\n");
599 spin_lock(&priv->adapter->driver_lock);
600 /* take care of cur_cmd = NULL case by reading the
601 * data to clear the interrupt */
602 if (!priv->adapter->cur_cmd) {
603 cmdbuf = priv->upld_buf;
604 priv->adapter->hisregcpy &= ~his_cmdupldrdy;
606 cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr;
608 cardp->usb_int_cause |= his_cmdupldrdy;
609 priv->upld_len = (recvlength - MESSAGE_HEADER_LEN);
610 memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN,
614 libertas_interrupt(priv->dev);
615 spin_unlock(&priv->adapter->driver_lock);
617 lbs_deb_usbd(&cardp->udev->dev,
618 "Wake up main thread to handle cmd response\n");
624 * @brief This function reads of the packet into the upload buff,
625 * wake up the main thread and initialise the Rx callack.
627 * @param urb pointer to struct urb
630 static void if_usb_receive(struct urb *urb)
632 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
633 wlan_private *priv = rinfo->priv;
634 struct sk_buff *skb = rinfo->skb;
635 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
637 int recvlength = urb->actual_length;
641 lbs_deb_enter(LBS_DEB_USB);
645 lbs_deb_usbd(&cardp->udev->dev,
646 "URB status is failed\n");
651 recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
652 memcpy(&recvtype, recvbuff, sizeof(u32));
653 lbs_deb_usbd(&cardp->udev->dev,
654 "Recv length = 0x%x\n", recvlength);
655 lbs_deb_usbd(&cardp->udev->dev,
656 "Receive type = 0x%X\n", recvtype);
657 recvtype = le32_to_cpu(recvtype);
658 lbs_deb_usbd(&cardp->udev->dev,
659 "Receive type after = 0x%X\n", recvtype);
660 } else if (urb->status)
666 process_cmdtypedata(recvlength, skb, cardp, priv);
669 case CMD_TYPE_REQUEST:
670 process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
673 case CMD_TYPE_INDICATION:
674 /* Event cause handling */
675 spin_lock(&priv->adapter->driver_lock);
676 cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN);
677 lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n",
678 cardp->usb_event_cause);
679 if (cardp->usb_event_cause & 0xffff0000) {
680 libertas_send_tx_feedback(priv);
681 spin_unlock(&priv->adapter->driver_lock);
684 cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3;
685 cardp->usb_int_cause |= his_cardevent;
687 libertas_interrupt(priv->dev);
688 spin_unlock(&priv->adapter->driver_lock);
696 if_usb_submit_rx_urb(priv);
698 lbs_deb_leave(LBS_DEB_USB);
702 * @brief This function downloads data to FW
703 * @param priv pointer to wlan_private structure
704 * @param type type of data
705 * @param buf pointer to data buffer
706 * @param len number of bytes
709 static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb)
713 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
715 lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type);
716 lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb);
718 if (type == MVMS_CMD) {
719 tmp = cpu_to_le32(CMD_TYPE_REQUEST);
720 priv->dnld_sent = DNLD_CMD_SENT;
721 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
725 tmp = cpu_to_le32(CMD_TYPE_DATA);
726 priv->dnld_sent = DNLD_DATA_SENT;
727 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
731 memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb);
734 usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN);
739 /* called with adapter->driver_lock held */
740 static int if_usb_get_int_status(wlan_private * priv, u8 * ireg)
742 struct usb_card_rec *cardp = priv->card;
744 *ireg = cardp->usb_int_cause;
745 cardp->usb_int_cause = 0;
747 lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg);
752 static int if_usb_read_event_cause(wlan_private * priv)
754 struct usb_card_rec *cardp = priv->card;
755 priv->adapter->eventcause = cardp->usb_event_cause;
756 /* Re-submit rx urb here to avoid event lost issue */
757 if_usb_submit_rx_urb(priv);
761 static int if_usb_reset_device(wlan_private *priv)
765 lbs_deb_enter(LBS_DEB_USB);
766 ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset,
767 cmd_act_halt, 0, 0, NULL);
768 msleep_interruptible(10);
770 lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
774 static int if_usb_unregister_dev(wlan_private * priv)
778 /* Need to send a Reset command to device before USB resources freed
779 * and wlan_remove_card() called, then device can handle FW download
783 if_usb_reset_device(priv);
790 * @brief This function register usb device and initialize parameter
791 * @param priv pointer to wlan_private
794 static int if_usb_register_dev(wlan_private * priv)
796 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
798 lbs_deb_enter(LBS_DEB_USB);
801 cardp->eth_dev = priv->dev;
802 priv->hotplug_device = &(cardp->udev->dev);
804 lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n",
807 lbs_deb_leave(LBS_DEB_USB);
813 static int if_usb_prog_firmware(wlan_private * priv)
815 struct usb_card_rec *cardp = priv->card;
817 static int reset_count = 10;
820 lbs_deb_enter(LBS_DEB_USB);
822 cardp->rinfo.priv = priv;
825 if (if_usb_submit_rx_urb_fwload(priv) < 0) {
826 lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
831 cardp->bootcmdresp = 0;
835 /* Issue Boot command = 1, Boot from Download-FW */
836 if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB);
837 /* wait for command response */
840 msleep_interruptible(100);
841 } while (cardp->bootcmdresp == 0 && j < 10);
842 } while (cardp->bootcmdresp == 0 && i < 5);
844 if (cardp->bootcmdresp == 0) {
845 if (--reset_count >= 0) {
846 libertas_do_reset(priv);
853 priv->adapter->fw_ready = 0;
855 cardp->totalbytes = 0;
856 cardp->fwlastblksent = 0;
858 cardp->fwdnldover = 0;
859 cardp->fwseqnum = -1;
860 cardp->totalbytes = 0;
861 cardp->fwfinalblk = 0;
863 if_prog_firmware(priv);
866 lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n");
868 msleep_interruptible(100);
869 if (priv->adapter->surpriseremoved || i >= 20)
871 } while (!cardp->fwdnldover);
873 if (!cardp->fwdnldover) {
874 lbs_pr_info("failed to load fw, resetting device!\n");
875 if (--reset_count >= 0) {
876 libertas_do_reset(priv);
880 lbs_pr_info("FW download failure, time = %d ms\n", i * 100);
885 if_usb_submit_rx_urb(priv);
887 /* Delay 200 ms to waiting for the FW ready */
888 msleep_interruptible(200);
890 priv->adapter->fw_ready = 1;
893 lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
898 static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
900 struct usb_card_rec *cardp = usb_get_intfdata(intf);
901 wlan_private *priv = cardp->priv;
903 lbs_deb_enter(LBS_DEB_USB);
905 if (priv->adapter->psstate != PS_STATE_FULL_POWER)
908 netif_device_detach(cardp->eth_dev);
909 netif_device_detach(priv->mesh_dev);
911 /* Unlink tx & rx urb */
912 usb_kill_urb(cardp->tx_urb);
913 usb_kill_urb(cardp->rx_urb);
915 cardp->rx_urb_recall = 1;
917 lbs_deb_leave(LBS_DEB_USB);
921 static int if_usb_resume(struct usb_interface *intf)
923 struct usb_card_rec *cardp = usb_get_intfdata(intf);
924 wlan_private *priv = cardp->priv;
926 lbs_deb_enter(LBS_DEB_USB);
928 cardp->rx_urb_recall = 0;
930 if_usb_submit_rx_urb(cardp->priv);
932 netif_device_attach(cardp->eth_dev);
933 netif_device_attach(priv->mesh_dev);
935 lbs_deb_leave(LBS_DEB_USB);
939 #define if_usb_suspend NULL
940 #define if_usb_resume NULL
943 static struct usb_driver if_usb_driver = {
945 .name = usbdriver_name,
946 /* probe function name */
947 .probe = if_usb_probe,
948 /* disconnect function name */
949 .disconnect = if_usb_disconnect,
950 /* device signature table */
951 .id_table = if_usb_table,
952 .suspend = if_usb_suspend,
953 .resume = if_usb_resume,
956 static int if_usb_init_module(void)
960 lbs_deb_enter(LBS_DEB_MAIN);
962 if (libertas_fw_name == NULL) {
963 libertas_fw_name = default_fw_name;
966 ret = usb_register(&if_usb_driver);
968 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
972 static void if_usb_exit_module(void)
974 struct list_head *ptr;
975 struct usb_card_rec *cardp;
977 lbs_deb_enter(LBS_DEB_MAIN);
979 list_for_each(ptr, &usb_devices) {
980 cardp = list_entry(ptr, struct usb_card_rec, list);
981 if_usb_reset_device((wlan_private *) cardp->priv);
984 /* API unregisters the driver from USB subsystem */
985 usb_deregister(&if_usb_driver);
987 lbs_deb_leave(LBS_DEB_MAIN);
990 module_init(if_usb_init_module);
991 module_exit(if_usb_exit_module);
993 MODULE_DESCRIPTION("8388 USB WLAN Driver");
994 MODULE_AUTHOR("Marvell International Ltd.");
995 MODULE_LICENSE("GPL");