示例#1
0
文件: if_usb.c 项目: mkrufky/linux
/**
 *  if_usb_send_fw_pkt -  This function downloads the FW
 *
 *  @priv	pointer to struct lbtf_private
 *
 *  Returns: 0
 */
static int if_usb_send_fw_pkt(struct if_usb_card *cardp)
{
	struct fwdata *fwdata = cardp->ep_out_buf;
	u8 *firmware = (u8 *) cardp->fw->data;

	lbtf_deb_enter(LBTF_DEB_FW);

	/* If we got a CRC failure on the last block, back
	   up and retry it */
	if (!cardp->CRC_OK) {
		cardp->totalbytes = cardp->fwlastblksent;
		cardp->fwseqnum--;
	}

	lbtf_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n",
		     cardp->totalbytes);

	/* struct fwdata (which we sent to the card) has an
	   extra __le32 field in between the header and the data,
	   which is not in the struct fwheader in the actual
	   firmware binary. Insert the seqnum in the middle... */
	memcpy(&fwdata->hdr, &firmware[cardp->totalbytes],
	       sizeof(struct fwheader));

	cardp->fwlastblksent = cardp->totalbytes;
	cardp->totalbytes += sizeof(struct fwheader);

	memcpy(fwdata->data, &firmware[cardp->totalbytes],
	       le32_to_cpu(fwdata->hdr.datalength));

	lbtf_deb_usb2(&cardp->udev->dev, "Data length = %d\n",
		     le32_to_cpu(fwdata->hdr.datalength));

	fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum);
	cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength);

	usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) +
		     le32_to_cpu(fwdata->hdr.datalength), 0);

	if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
		lbtf_deb_usb2(&cardp->udev->dev, "There are data to follow\n");
		lbtf_deb_usb2(&cardp->udev->dev,
			"seqnum = %d totalbytes = %d\n",
			cardp->fwseqnum, cardp->totalbytes);
	} else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) {
		lbtf_deb_usb2(&cardp->udev->dev,
			"Host has finished FW downloading\n");
		lbtf_deb_usb2(&cardp->udev->dev, "Donwloading FW JUMP BLOCK\n");

		/* Host has finished FW downloading
		 * Donwloading FW JUMP BLOCK
		 */
		cardp->fwfinalblk = 1;
	}

	lbtf_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n",
		     cardp->totalbytes);

	lbtf_deb_leave(LBTF_DEB_FW);
	return 0;
}
示例#2
0
/**
 *  if_usb_receive - read data received from the device.
 *
 *  @urb		pointer to struct urb
 */
static void if_usb_receive(struct urb *urb)
{
	struct if_usb_card *cardp = urb->context;
	struct sk_buff *skb = cardp->rx_skb;
	struct lbtf_private *priv = cardp->priv;
	int recvlength = urb->actual_length;
	uint8_t *recvbuff = NULL;
	uint32_t recvtype = 0;
	__le32 *pkt = (__le32 *) skb->data;

	lbtf_deb_enter(LBTF_DEB_USB);

	if (recvlength) {
		if (urb->status) {
			lbtf_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n",
				     urb->status);
			kfree_skb(skb);
			goto setup_for_next;
		}

		recvbuff = skb->data;
		recvtype = le32_to_cpu(pkt[0]);
		lbtf_deb_usbd(&cardp->udev->dev,
			    "Recv length = 0x%x, Recv type = 0x%X\n",
			    recvlength, recvtype);
	} else if (urb->status) {
		kfree_skb(skb);
		lbtf_deb_leave(LBTF_DEB_USB);
		return;
	}

	switch (recvtype) {
	case CMD_TYPE_DATA:
		process_cmdtypedata(recvlength, skb, cardp, priv);
		break;

	case CMD_TYPE_REQUEST:
		process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
		break;

	case CMD_TYPE_INDICATION:
	{
		/* Event cause handling */
		u32 event_cause = le32_to_cpu(pkt[1]);
		lbtf_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n",
			event_cause);

		/* Icky undocumented magic special case */
		if (event_cause & 0xffff0000) {
			u16 tmp;
			u8 retrycnt;
			u8 failure;

			tmp = event_cause >> 16;
			retrycnt = tmp & 0x00ff;
			failure = (tmp & 0xff00) >> 8;
			lbtf_send_tx_feedback(priv, retrycnt, failure);
		} else if (event_cause == LBTF_EVENT_BCN_SENT)
			lbtf_bcn_sent(priv);
		else
			lbtf_deb_usbd(&cardp->udev->dev,
			       "Unsupported notification %d received\n",
			       event_cause);
		kfree_skb(skb);
		break;
	}
示例#3
0
文件: if_usb.c 项目: mkrufky/linux
/**
 *  if_usb_probe - sets the configuration values
 *
 *  @ifnum	interface number
 *  @id		pointer to usb_device_id
 *
 *  Returns: 0 on success, error code on failure
 */
static int if_usb_probe(struct usb_interface *intf,
			const struct usb_device_id *id)
{
	struct usb_device *udev;
	struct usb_host_interface *iface_desc;
	struct usb_endpoint_descriptor *endpoint;
	struct lbtf_private *priv;
	struct if_usb_card *cardp;
	int i;

	lbtf_deb_enter(LBTF_DEB_USB);
	udev = interface_to_usbdev(intf);

	cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL);
	if (!cardp)
		goto error;

	setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp);
	init_waitqueue_head(&cardp->fw_wq);

	cardp->udev = udev;
	iface_desc = intf->cur_altsetting;

	lbtf_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
		     " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
		     le16_to_cpu(udev->descriptor.bcdUSB),
		     udev->descriptor.bDeviceClass,
		     udev->descriptor.bDeviceSubClass,
		     udev->descriptor.bDeviceProtocol);

	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
		endpoint = &iface_desc->endpoint[i].desc;
		if (usb_endpoint_is_bulk_in(endpoint)) {
			cardp->ep_in_size =
				le16_to_cpu(endpoint->wMaxPacketSize);
			cardp->ep_in = usb_endpoint_num(endpoint);

			lbtf_deb_usbd(&udev->dev, "in_endpoint = %d\n",
				cardp->ep_in);
			lbtf_deb_usbd(&udev->dev, "Bulk in size is %d\n",
				cardp->ep_in_size);
		} else if (usb_endpoint_is_bulk_out(endpoint)) {
			cardp->ep_out_size =
				le16_to_cpu(endpoint->wMaxPacketSize);
			cardp->ep_out = usb_endpoint_num(endpoint);

			lbtf_deb_usbd(&udev->dev, "out_endpoint = %d\n",
				cardp->ep_out);
			lbtf_deb_usbd(&udev->dev, "Bulk out size is %d\n",
				cardp->ep_out_size);
		}
	}
	if (!cardp->ep_out_size || !cardp->ep_in_size) {
		lbtf_deb_usbd(&udev->dev, "Endpoints not found\n");
		/* Endpoints not found */
		goto dealloc;
	}

	cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
	if (!cardp->rx_urb)
		goto dealloc;

	cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
	if (!cardp->tx_urb)
		goto dealloc;

	cardp->cmd_urb = usb_alloc_urb(0, GFP_KERNEL);
	if (!cardp->cmd_urb)
		goto dealloc;

	cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
				    GFP_KERNEL);
	if (!cardp->ep_out_buf) {
		lbtf_deb_usbd(&udev->dev, "Could not allocate buffer\n");
		goto dealloc;
	}

	priv = lbtf_add_card(cardp, &udev->dev);
	if (!priv)
		goto dealloc;

	cardp->priv = priv;

	priv->hw_host_to_card = if_usb_host_to_card;
	priv->hw_prog_firmware = if_usb_prog_firmware;
	priv->hw_reset_device = if_usb_reset_device;
	cardp->boot2_version = udev->descriptor.bcdDevice;

	usb_get_dev(udev);
	usb_set_intfdata(intf, cardp);

	return 0;

dealloc:
	if_usb_free(cardp);
error:
lbtf_deb_leave(LBTF_DEB_MAIN);
	return -ENOMEM;
}
示例#4
0
static void if_usb_receive_fwload(struct urb *urb)
{
	struct if_usb_card *cardp = urb->context;
	struct sk_buff *skb = cardp->rx_skb;
	struct fwsyncheader *syncfwheader;
	struct bootcmdresp bcmdresp;

	lbtf_deb_enter(LBTF_DEB_USB);
	if (urb->status) {
		lbtf_deb_usbd(&cardp->udev->dev,
			     "URB status is failed during fw load\n");
		kfree_skb(skb);
		lbtf_deb_leave(LBTF_DEB_USB);
		return;
	}

	if (cardp->fwdnldover) {
		__le32 *tmp = (__le32 *)(skb->data);

		if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) &&
		    tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) {
			/* Firmware ready event received */
			pr_info("Firmware ready event received\n");
			wake_up(&cardp->fw_wq);
		} else {
			lbtf_deb_usb("Waiting for confirmation; got %x %x\n",
				    le32_to_cpu(tmp[0]), le32_to_cpu(tmp[1]));
			if_usb_submit_rx_urb_fwload(cardp);
		}
		kfree_skb(skb);
		lbtf_deb_leave(LBTF_DEB_USB);
		return;
	}
	if (cardp->bootcmdresp <= 0) {
		memcpy(&bcmdresp, skb->data, sizeof(bcmdresp));

		if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) {
			kfree_skb(skb);
			if_usb_submit_rx_urb_fwload(cardp);
			cardp->bootcmdresp = 1;
			/* Received valid boot command response */
			lbtf_deb_usbd(&cardp->udev->dev,
				     "Received valid boot command response\n");
			lbtf_deb_leave(LBTF_DEB_USB);
			return;
		}
		if (bcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) {
			if (bcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) ||
			    bcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) ||
			    bcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) {
				if (!cardp->bootcmdresp)
					pr_info("Firmware already seems alive; resetting\n");
				cardp->bootcmdresp = -1;
			} else {
				pr_info("boot cmd response wrong magic number (0x%x)\n",
					    le32_to_cpu(bcmdresp.magic));
			}
		} else if (bcmdresp.cmd != BOOT_CMD_FW_BY_USB) {
			pr_info("boot cmd response cmd_tag error (%d)\n",
				bcmdresp.cmd);
		} else if (bcmdresp.result != BOOT_CMD_RESP_OK) {
			pr_info("boot cmd response result error (%d)\n",
				bcmdresp.result);
		} else {
			cardp->bootcmdresp = 1;
			lbtf_deb_usbd(&cardp->udev->dev,
				"Received valid boot command response\n");
		}

		kfree_skb(skb);
		if_usb_submit_rx_urb_fwload(cardp);
		lbtf_deb_leave(LBTF_DEB_USB);
		return;
	}

	syncfwheader = kmemdup(skb->data, sizeof(struct fwsyncheader),
			       GFP_ATOMIC);
	if (!syncfwheader) {
		lbtf_deb_usbd(&cardp->udev->dev,
			"Failure to allocate syncfwheader\n");
		kfree_skb(skb);
		lbtf_deb_leave(LBTF_DEB_USB);
		return;
	}

	if (!syncfwheader->cmd) {
		lbtf_deb_usb2(&cardp->udev->dev,
			"FW received Blk with correct CRC\n");
		lbtf_deb_usb2(&cardp->udev->dev,
			"FW received Blk seqnum = %d\n",
			le32_to_cpu(syncfwheader->seqnum));
		cardp->CRC_OK = 1;
	} else {
		lbtf_deb_usbd(&cardp->udev->dev,
			"FW received Blk with CRC error\n");
		cardp->CRC_OK = 0;
	}

	kfree_skb(skb);

	/* reschedule timer for 200ms hence */
	mod_timer(&cardp->fw_timeout, jiffies + (HZ/5));

	if (cardp->fwfinalblk) {
		cardp->fwdnldover = 1;
		goto exit;
	}

	if_usb_send_fw_pkt(cardp);

 exit:
	if_usb_submit_rx_urb_fwload(cardp);

	kfree(syncfwheader);

	lbtf_deb_leave(LBTF_DEB_USB);
}