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"
20 #define MESSAGE_HEADER_LEN 4
22 static const char usbdriver_name[] = "usb8xxx";
23 static u8 *default_fw_name = "usb8388.bin";
25 static char *libertas_fw_name = NULL;
26 module_param_named(fw_name, libertas_fw_name, charp, 0644);
29 * We need to send a RESET command to all USB devices before
30 * we tear down the USB connection. Otherwise we would not
31 * be able to re-init device the device if the module gets
32 * loaded again. This is a list of all initialized USB devices,
33 * for the reset code see if_usb_reset_device()
35 static LIST_HEAD(usb_devices);
37 static struct usb_device_id if_usb_table[] = {
38 /* Enter the device signature inside */
39 { USB_DEVICE(0x1286, 0x2001) },
40 { USB_DEVICE(0x05a3, 0x8388) },
41 {} /* Terminating entry */
44 MODULE_DEVICE_TABLE(usb, if_usb_table);
46 static void if_usb_receive(struct urb *urb);
47 static void if_usb_receive_fwload(struct urb *urb);
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 *);
54 static int usb_tx_block(wlan_private *priv, u8 *payload, u16 nb);
55 static void if_usb_free(struct usb_card_rec *cardp);
58 * @brief call back function to handle the status of the URB
59 * @param urb pointer to urb structure
62 static void if_usb_write_bulk_callback(struct urb *urb)
64 wlan_private *priv = (wlan_private *) (urb->context);
65 wlan_adapter *adapter = priv->adapter;
66 struct net_device *dev = priv->dev;
68 /* handle the transmission complete validations */
70 if (urb->status != 0) {
71 /* print the failure status number for debug */
72 lbs_pr_info("URB in failure status: %d\n", urb->status);
75 lbs_deb_usbd(&urb->dev->dev, "URB status is successfull\n");
76 lbs_deb_usbd(&urb->dev->dev, "Actual length transmitted %d\n",
79 priv->dnld_sent = DNLD_RES_RECEIVED;
80 /* Wake main thread if commands are pending */
81 if (!adapter->cur_cmd)
82 wake_up_interruptible(&priv->waitq);
83 if ((adapter->connect_status == LIBERTAS_CONNECTED)) {
84 netif_wake_queue(dev);
85 netif_wake_queue(priv->mesh_dev);
93 * @brief free tx/rx urb, skb and rx buffer
94 * @param cardp pointer usb_card_rec
97 static void if_usb_free(struct usb_card_rec *cardp)
99 lbs_deb_enter(LBS_DEB_USB);
101 /* Unlink tx & rx urb */
102 usb_kill_urb(cardp->tx_urb);
103 usb_kill_urb(cardp->rx_urb);
105 usb_free_urb(cardp->tx_urb);
106 cardp->tx_urb = NULL;
108 usb_free_urb(cardp->rx_urb);
109 cardp->rx_urb = NULL;
111 kfree(cardp->bulk_out_buffer);
112 cardp->bulk_out_buffer = NULL;
114 lbs_deb_leave(LBS_DEB_USB);
118 * @brief sets the configuration values
119 * @param ifnum interface number
120 * @param id pointer to usb_device_id
121 * @return 0 on success, error code on failure
123 static int if_usb_probe(struct usb_interface *intf,
124 const struct usb_device_id *id)
126 struct usb_device *udev;
127 struct usb_host_interface *iface_desc;
128 struct usb_endpoint_descriptor *endpoint;
130 struct usb_card_rec *cardp;
133 udev = interface_to_usbdev(intf);
135 cardp = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL);
137 lbs_pr_err("Out of memory allocating private data.\n");
142 iface_desc = intf->cur_altsetting;
144 lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
145 " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
146 le16_to_cpu(udev->descriptor.bcdUSB),
147 udev->descriptor.bDeviceClass,
148 udev->descriptor.bDeviceSubClass,
149 udev->descriptor.bDeviceProtocol);
151 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
152 endpoint = &iface_desc->endpoint[i].desc;
153 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
154 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
155 USB_ENDPOINT_XFER_BULK)) {
156 /* we found a bulk in endpoint */
157 lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n",
158 le16_to_cpu(endpoint->wMaxPacketSize));
159 if (!(cardp->rx_urb = 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 le16_to_cpu(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 */
181 if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
182 lbs_deb_usbd(&udev->dev,
183 "Tx URB allocation failed\n");
187 cardp->bulk_out_size =
188 le16_to_cpu(endpoint->wMaxPacketSize);
189 lbs_deb_usbd(&udev->dev,
190 "Bulk out size is %d\n",
191 le16_to_cpu(endpoint->wMaxPacketSize));
192 cardp->bulk_out_endpointAddr =
193 endpoint->bEndpointAddress;
194 lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n",
195 endpoint->bEndpointAddress);
196 cardp->bulk_out_buffer =
197 kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
200 if (!cardp->bulk_out_buffer) {
201 lbs_deb_usbd(&udev->dev,
202 "Could not allocate buffer\n");
208 if (!(priv = libertas_add_card(cardp, &udev->dev)))
211 udev->dev.driver_data = priv;
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))
224 goto err_activate_card;
226 list_add_tail(&cardp->list, &usb_devices);
229 usb_set_intfdata(intf, cardp);
234 libertas_remove_mesh(priv);
236 free_netdev(priv->dev);
237 kfree(priv->adapter);
246 * @brief free resource and cleanup
247 * @param intf USB interface structure
250 static void if_usb_disconnect(struct usb_interface *intf)
252 struct usb_card_rec *cardp = usb_get_intfdata(intf);
253 wlan_private *priv = (wlan_private *) cardp->priv;
254 wlan_adapter *adapter = NULL;
256 adapter = priv->adapter;
259 * Update Surprise removed to TRUE
261 adapter->surpriseremoved = 1;
263 list_del(&cardp->list);
265 /* card is removed and we can call wlan_remove_card */
266 lbs_deb_usbd(&cardp->udev->dev, "call remove card\n");
267 libertas_remove_mesh(priv);
268 libertas_remove_card(priv);
270 /* Unlink and free urb */
273 usb_set_intfdata(intf, NULL);
274 usb_put_dev(interface_to_usbdev(intf));
280 * @brief This function download FW
281 * @param priv pointer to wlan_private
284 static int if_prog_firmware(wlan_private * priv)
286 struct usb_card_rec *cardp = priv->card;
287 struct FWData *fwdata;
288 struct fwheader *fwheader;
289 u8 *firmware = priv->firmware->data;
291 fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC);
296 fwheader = &fwdata->fwheader;
298 if (!cardp->CRC_OK) {
299 cardp->totalbytes = cardp->fwlastblksent;
300 cardp->fwseqnum = cardp->lastseqnum - 1;
304 lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n",
308 memcpy(fwheader, &firmware[cardp->totalbytes],
309 sizeof(struct fwheader));
311 cardp->fwlastblksent = cardp->totalbytes;
312 cardp->totalbytes += sizeof(struct fwheader);
314 /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */
315 memcpy(fwdata->data, &firmware[cardp->totalbytes],
316 le32_to_cpu(fwdata->fwheader.datalength));
319 lbs_deb_usbd(&cardp->udev->dev,
320 "Data length = %d\n", le32_to_cpu(fwdata->fwheader.datalength));
323 cardp->fwseqnum = cardp->fwseqnum + 1;
325 fwdata->seqnum = cpu_to_le32(cardp->fwseqnum);
326 cardp->lastseqnum = cardp->fwseqnum;
327 cardp->totalbytes += le32_to_cpu(fwdata->fwheader.datalength);
329 if (fwheader->dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
331 lbs_deb_usbd(&cardp->udev->dev, "There are data to follow\n");
332 lbs_deb_usbd(&cardp->udev->dev,
333 "seqnum = %d totalbytes = %d\n", cardp->fwseqnum,
336 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
337 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
339 } else if (fwdata->fwheader.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) {
341 lbs_deb_usbd(&cardp->udev->dev,
342 "Host has finished FW downloading\n");
343 lbs_deb_usbd(&cardp->udev->dev,
344 "Donwloading FW JUMP BLOCK\n");
346 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
347 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
348 cardp->fwfinalblk = 1;
352 lbs_deb_usbd(&cardp->udev->dev,
353 "The firmware download is done size is %d\n",
362 static int if_usb_reset_device(wlan_private *priv)
365 struct usb_card_rec *cardp = priv->card;
367 lbs_deb_enter(LBS_DEB_USB);
369 /* Try a USB port reset first, if that fails send the reset
370 * command to the firmware.
372 ret = usb_reset_device(cardp->udev);
375 ret = libertas_reset_device(priv);
379 lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
385 * @brief This function transfer the data to the device.
386 * @param priv pointer to wlan_private
387 * @param payload pointer to payload data
388 * @param nb data length
391 static int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb)
393 /* pointer to card structure */
394 struct usb_card_rec *cardp = priv->card;
397 /* check if device is removed */
398 if (priv->adapter->surpriseremoved) {
399 lbs_deb_usbd(&cardp->udev->dev, "Device removed\n");
403 usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
404 usb_sndbulkpipe(cardp->udev,
405 cardp->bulk_out_endpointAddr),
406 payload, nb, if_usb_write_bulk_callback, priv);
408 cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
410 if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
411 /* transfer failed */
412 lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n");
415 /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */
423 static int __if_usb_submit_rx_urb(wlan_private * priv,
427 struct usb_card_rec *cardp = priv->card;
429 struct read_cb_info *rinfo = &cardp->rinfo;
432 if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
433 lbs_pr_err("No free skb\n");
439 /* Fill the receive configuration URB and initialise the Rx call back */
440 usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
441 usb_rcvbulkpipe(cardp->udev,
442 cardp->bulk_in_endpointAddr),
443 (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET),
444 MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
447 cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
449 /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */
450 if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
451 /* handle failure conditions */
452 lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed\n");
455 /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */
463 static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv)
465 return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload);
468 static inline int if_usb_submit_rx_urb(wlan_private * priv)
470 return __if_usb_submit_rx_urb(priv, &if_usb_receive);
473 static void if_usb_receive_fwload(struct urb *urb)
475 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
476 wlan_private *priv = rinfo->priv;
477 struct sk_buff *skb = rinfo->skb;
478 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
479 struct fwsyncheader *syncfwheader;
480 struct bootcmdrespStr bootcmdresp;
483 lbs_deb_usbd(&cardp->udev->dev,
484 "URB status is failed during fw load\n");
489 if (cardp->bootcmdresp == 0) {
490 memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
491 sizeof(bootcmdresp));
492 if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) {
494 if_usb_submit_rx_urb_fwload(priv);
495 cardp->bootcmdresp = 1;
496 lbs_deb_usbd(&cardp->udev->dev,
497 "Received valid boot command response\n");
500 if (bootcmdresp.u32magicnumber != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) {
502 "boot cmd response wrong magic number (0x%x)\n",
503 le32_to_cpu(bootcmdresp.u32magicnumber));
504 } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) {
506 "boot cmd response cmd_tag error (%d)\n",
507 bootcmdresp.u8cmd_tag);
508 } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) {
510 "boot cmd response result error (%d)\n",
511 bootcmdresp.u8result);
513 cardp->bootcmdresp = 1;
514 lbs_deb_usbd(&cardp->udev->dev,
515 "Received valid boot command response\n");
518 if_usb_submit_rx_urb_fwload(priv);
522 syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
524 lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
529 memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET,
530 sizeof(struct fwsyncheader));
532 if (!syncfwheader->cmd) {
534 lbs_deb_usbd(&cardp->udev->dev,
535 "FW received Blk with correct CRC\n");
536 lbs_deb_usbd(&cardp->udev->dev,
537 "FW received Blk seqnum = %d\n",
538 syncfwheader->seqnum);
542 lbs_deb_usbd(&cardp->udev->dev,
543 "FW received Blk with CRC error\n");
549 if (cardp->fwfinalblk) {
550 cardp->fwdnldover = 1;
554 if_prog_firmware(priv);
556 if_usb_submit_rx_urb_fwload(priv);
564 #define MRVDRV_MIN_PKT_LEN 30
566 static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
567 struct usb_card_rec *cardp,
570 if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE +
571 MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) {
572 lbs_deb_usbd(&cardp->udev->dev,
573 "Packet length is Invalid\n");
578 skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
579 skb_put(skb, recvlength);
580 skb_pull(skb, MESSAGE_HEADER_LEN);
581 libertas_process_rxed_packet(priv, skb);
582 priv->upld_len = (recvlength - MESSAGE_HEADER_LEN);
585 static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
587 struct usb_card_rec *cardp,
591 if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) {
592 lbs_deb_usbd(&cardp->udev->dev,
593 "The receive buffer is too large\n");
601 spin_lock(&priv->adapter->driver_lock);
602 /* take care of cur_cmd = NULL case by reading the
603 * data to clear the interrupt */
604 if (!priv->adapter->cur_cmd) {
605 cmdbuf = priv->upld_buf;
606 priv->adapter->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
608 cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr;
610 cardp->usb_int_cause |= MRVDRV_CMD_UPLD_RDY;
611 priv->upld_len = (recvlength - MESSAGE_HEADER_LEN);
612 memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN,
616 libertas_interrupt(priv->dev);
617 spin_unlock(&priv->adapter->driver_lock);
619 lbs_deb_usbd(&cardp->udev->dev,
620 "Wake up main thread to handle cmd response\n");
626 * @brief This function reads of the packet into the upload buff,
627 * wake up the main thread and initialise the Rx callack.
629 * @param urb pointer to struct urb
632 static void if_usb_receive(struct urb *urb)
634 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
635 wlan_private *priv = rinfo->priv;
636 struct sk_buff *skb = rinfo->skb;
637 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
639 int recvlength = urb->actual_length;
643 lbs_deb_enter(LBS_DEB_USB);
647 lbs_deb_usbd(&cardp->udev->dev,
648 "URB status is failed\n");
653 recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
654 memcpy(&recvtype, recvbuff, sizeof(u32));
655 lbs_deb_usbd(&cardp->udev->dev,
656 "Recv length = 0x%x\n", recvlength);
657 lbs_deb_usbd(&cardp->udev->dev,
658 "Receive type = 0x%X\n", recvtype);
659 recvtype = le32_to_cpu(recvtype);
660 lbs_deb_usbd(&cardp->udev->dev,
661 "Receive type after = 0x%X\n", recvtype);
662 } else if (urb->status)
668 process_cmdtypedata(recvlength, skb, cardp, priv);
671 case CMD_TYPE_REQUEST:
672 process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
675 case CMD_TYPE_INDICATION:
676 /* Event cause handling */
677 spin_lock(&priv->adapter->driver_lock);
678 cardp->usb_event_cause = le32_to_cpu(*(__le32 *) (recvbuff + MESSAGE_HEADER_LEN));
679 lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n",
680 cardp->usb_event_cause);
681 if (cardp->usb_event_cause & 0xffff0000) {
682 libertas_send_tx_feedback(priv);
683 spin_unlock(&priv->adapter->driver_lock);
686 cardp->usb_event_cause <<= 3;
687 cardp->usb_int_cause |= MRVDRV_CARDEVENT;
689 libertas_interrupt(priv->dev);
690 spin_unlock(&priv->adapter->driver_lock);
698 if_usb_submit_rx_urb(priv);
700 lbs_deb_leave(LBS_DEB_USB);
704 * @brief This function downloads data to FW
705 * @param priv pointer to wlan_private structure
706 * @param type type of data
707 * @param buf pointer to data buffer
708 * @param len number of bytes
711 static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb)
715 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
717 lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type);
718 lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb);
720 if (type == MVMS_CMD) {
721 tmp = cpu_to_le32(CMD_TYPE_REQUEST);
722 priv->dnld_sent = DNLD_CMD_SENT;
723 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
727 tmp = cpu_to_le32(CMD_TYPE_DATA);
728 priv->dnld_sent = DNLD_DATA_SENT;
729 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
733 memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb);
736 usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN);
741 /* called with adapter->driver_lock held */
742 static int if_usb_get_int_status(wlan_private * priv, u8 * ireg)
744 struct usb_card_rec *cardp = priv->card;
746 *ireg = cardp->usb_int_cause;
747 cardp->usb_int_cause = 0;
749 lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg);
754 static int if_usb_read_event_cause(wlan_private * priv)
756 struct usb_card_rec *cardp = priv->card;
757 priv->adapter->eventcause = cardp->usb_event_cause;
758 /* Re-submit rx urb here to avoid event lost issue */
759 if_usb_submit_rx_urb(priv);
763 static int if_usb_unregister_dev(wlan_private * priv)
767 /* Need to send a Reset command to device before USB resources freed
768 * and wlan_remove_card() called, then device can handle FW download
772 libertas_reset_device(priv);
779 * @brief This function register usb device and initialize parameter
780 * @param priv pointer to wlan_private
783 static int if_usb_register_dev(wlan_private * priv)
785 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
787 lbs_deb_enter(LBS_DEB_USB);
790 cardp->eth_dev = priv->dev;
791 priv->hotplug_device = &(cardp->udev->dev);
793 lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n",
796 lbs_deb_leave(LBS_DEB_USB);
801 * @brief This function issues Boot command to the Boot2 code
802 * @param ivalue 1:Boot from FW by USB-Download
803 * 2:Boot from FW in EEPROM
806 static int if_usb_issue_boot_command(wlan_private *priv, int ivalue)
808 struct usb_card_rec *cardp = priv->card;
809 struct bootcmdstr sbootcmd;
812 /* Prepare command */
813 sbootcmd.u32magicnumber = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER);
814 sbootcmd.u8cmd_tag = ivalue;
816 sbootcmd.au8dumy[i]=0x00;
817 memcpy(cardp->bulk_out_buffer, &sbootcmd, sizeof(struct bootcmdstr));
820 usb_tx_block(priv, cardp->bulk_out_buffer, sizeof(struct bootcmdstr));
826 static int if_usb_do_prog_firmware(wlan_private * priv)
828 struct usb_card_rec *cardp = priv->card;
830 static int reset_count = 10;
833 lbs_deb_enter(LBS_DEB_USB);
835 cardp->rinfo.priv = priv;
838 if (if_usb_submit_rx_urb_fwload(priv) < 0) {
839 lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
844 cardp->bootcmdresp = 0;
848 /* Issue Boot command = 1, Boot from Download-FW */
849 if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB);
850 /* wait for command response */
853 msleep_interruptible(100);
854 } while (cardp->bootcmdresp == 0 && j < 10);
855 } while (cardp->bootcmdresp == 0 && i < 5);
857 if (cardp->bootcmdresp == 0) {
858 if (--reset_count >= 0) {
859 if_usb_reset_device(priv);
866 priv->adapter->fw_ready = 0;
868 cardp->totalbytes = 0;
869 cardp->fwlastblksent = 0;
871 cardp->fwdnldover = 0;
872 cardp->fwseqnum = -1;
873 cardp->totalbytes = 0;
874 cardp->fwfinalblk = 0;
876 if_prog_firmware(priv);
879 lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n");
881 msleep_interruptible(100);
882 if (priv->adapter->surpriseremoved || i >= 20)
884 } while (!cardp->fwdnldover);
886 if (!cardp->fwdnldover) {
887 lbs_pr_info("failed to load fw, resetting device!\n");
888 if (--reset_count >= 0) {
889 if_usb_reset_device(priv);
893 lbs_pr_info("FW download failure, time = %d ms\n", i * 100);
898 if_usb_submit_rx_urb(priv);
900 /* Delay 200 ms to waiting for the FW ready */
901 msleep_interruptible(200);
903 priv->adapter->fw_ready = 1;
906 lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
911 * @brief This function checks the validity of Boot2/FW image.
913 * @param data pointer to image
917 static int check_fwfile_format(u8 *data, u32 totlen)
920 u32 blksize, offset, len;
927 struct fwheader *fwh = (void *)data;
929 bincmd = le32_to_cpu(fwh->dnldcmd);
930 blksize = le32_to_cpu(fwh->datalength);
932 case FW_HAS_DATA_TO_RECV:
933 offset = sizeof(struct fwheader) + blksize;
939 case FW_HAS_LAST_BLOCK:
950 lbs_pr_err("firmware file format check FAIL\n");
952 lbs_deb_fw("firmware file format check PASS\n");
958 static int if_usb_prog_firmware(wlan_private *priv)
962 lbs_deb_enter(LBS_DEB_FW);
964 if ((ret = request_firmware(&priv->firmware, libertas_fw_name,
965 priv->hotplug_device)) < 0) {
966 lbs_pr_err("request_firmware() failed with %#x\n", ret);
967 lbs_pr_err("firmware %s not found\n", libertas_fw_name);
971 if (check_fwfile_format(priv->firmware->data, priv->firmware->size)) {
972 release_firmware(priv->firmware);
976 ret = if_usb_do_prog_firmware(priv);
978 release_firmware(priv->firmware);
985 static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
987 struct usb_card_rec *cardp = usb_get_intfdata(intf);
988 wlan_private *priv = cardp->priv;
990 lbs_deb_enter(LBS_DEB_USB);
992 if (priv->adapter->psstate != PS_STATE_FULL_POWER)
995 if (priv->mesh_dev && !priv->mesh_autostart_enabled) {
996 /* Mesh autostart must be activated while sleeping
997 * On resume it will go back to the current state
999 struct cmd_ds_mesh_access mesh_access;
1000 memset(&mesh_access, 0, sizeof(mesh_access));
1001 mesh_access.data[0] = cpu_to_le32(1);
1002 libertas_prepare_and_send_command(priv,
1004 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
1005 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
1008 netif_device_detach(cardp->eth_dev);
1009 netif_device_detach(priv->mesh_dev);
1011 /* Unlink tx & rx urb */
1012 usb_kill_urb(cardp->tx_urb);
1013 usb_kill_urb(cardp->rx_urb);
1015 cardp->rx_urb_recall = 1;
1017 lbs_deb_leave(LBS_DEB_USB);
1021 static int if_usb_resume(struct usb_interface *intf)
1023 struct usb_card_rec *cardp = usb_get_intfdata(intf);
1024 wlan_private *priv = cardp->priv;
1026 lbs_deb_enter(LBS_DEB_USB);
1028 cardp->rx_urb_recall = 0;
1030 if_usb_submit_rx_urb(cardp->priv);
1032 netif_device_attach(cardp->eth_dev);
1033 netif_device_attach(priv->mesh_dev);
1035 if (priv->mesh_dev && !priv->mesh_autostart_enabled) {
1036 /* Mesh autostart was activated while sleeping
1037 * Disable it if appropriate
1039 struct cmd_ds_mesh_access mesh_access;
1040 memset(&mesh_access, 0, sizeof(mesh_access));
1041 mesh_access.data[0] = cpu_to_le32(0);
1042 libertas_prepare_and_send_command(priv,
1044 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
1045 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
1048 lbs_deb_leave(LBS_DEB_USB);
1052 #define if_usb_suspend NULL
1053 #define if_usb_resume NULL
1056 static struct usb_driver if_usb_driver = {
1058 .name = usbdriver_name,
1059 /* probe function name */
1060 .probe = if_usb_probe,
1061 /* disconnect function name */
1062 .disconnect = if_usb_disconnect,
1063 /* device signature table */
1064 .id_table = if_usb_table,
1065 .suspend = if_usb_suspend,
1066 .resume = if_usb_resume,
1069 static int if_usb_init_module(void)
1073 lbs_deb_enter(LBS_DEB_MAIN);
1075 if (libertas_fw_name == NULL) {
1076 libertas_fw_name = default_fw_name;
1079 ret = usb_register(&if_usb_driver);
1081 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1085 static void if_usb_exit_module(void)
1087 struct usb_card_rec *cardp, *cardp_temp;
1089 lbs_deb_enter(LBS_DEB_MAIN);
1091 list_for_each_entry_safe(cardp, cardp_temp, &usb_devices, list)
1092 libertas_reset_device((wlan_private *) cardp->priv);
1094 /* API unregisters the driver from USB subsystem */
1095 usb_deregister(&if_usb_driver);
1097 lbs_deb_leave(LBS_DEB_MAIN);
1100 module_init(if_usb_init_module);
1101 module_exit(if_usb_exit_module);
1103 MODULE_DESCRIPTION("8388 USB WLAN Driver");
1104 MODULE_AUTHOR("Marvell International Ltd.");
1105 MODULE_LICENSE("GPL");