also ignore env directory
[openwrt.git] / package / libertas / src / if_usb.c
index 02192e8..97a8119 100644 (file)
@@ -6,6 +6,9 @@
 #include <linux/firmware.h>
 #include <linux/netdevice.h>
 #include <linux/usb.h>
+#ifdef CONFIG_OLPC
+#include <asm/olpc.h>
+#endif
 
 #define DRV_NAME "usb8xxx"
 
@@ -16,6 +19,9 @@
 #include "cmd.h"
 #include "if_usb.h"
 
+#define INSANEDEBUG    0
+#define lbs_deb_usb2(...) do { if (INSANEDEBUG) lbs_deb_usbd(__VA_ARGS__); } while (0)
+
 #define MESSAGE_HEADER_LEN     4
 
 static char *lbs_fw_name = "usb8388.bin";
@@ -32,17 +38,14 @@ MODULE_DEVICE_TABLE(usb, if_usb_table);
 
 static void if_usb_receive(struct urb *urb);
 static void if_usb_receive_fwload(struct urb *urb);
-static int if_usb_prog_firmware(struct usb_card_rec *cardp);
-static int if_usb_host_to_card(struct lbs_private *priv,
-       u8 type,
-       u8 *payload,
-       u16 nb);
-static int if_usb_get_int_status(struct lbs_private *priv, u8 *);
-static int if_usb_read_event_cause(struct lbs_private *);
-static int usb_tx_block(struct usb_card_rec *cardp, u8 *payload, u16 nb);
-static void if_usb_free(struct usb_card_rec *cardp);
-static int if_usb_submit_rx_urb(struct usb_card_rec *cardp);
-static int if_usb_reset_device(struct usb_card_rec *cardp);
+static int if_usb_prog_firmware(struct if_usb_card *cardp);
+static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type,
+                              uint8_t *payload, uint16_t nb);
+static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
+                       uint16_t nb);
+static void if_usb_free(struct if_usb_card *cardp);
+static int if_usb_submit_rx_urb(struct if_usb_card *cardp);
+static int if_usb_reset_device(struct if_usb_card *cardp);
 
 /**
  *  @brief  call back function to handle the status of the URB
@@ -51,18 +54,16 @@ static int if_usb_reset_device(struct usb_card_rec *cardp);
  */
 static void if_usb_write_bulk_callback(struct urb *urb)
 {
-       struct usb_card_rec *cardp = (struct usb_card_rec *) urb->context;
+       struct if_usb_card *cardp = (struct if_usb_card *) urb->context;
 
        /* handle the transmission complete validations */
 
        if (urb->status == 0) {
                struct lbs_private *priv = cardp->priv;
 
-               /*
-               lbs_deb_usbd(&urb->dev->dev, "URB status is successfull\n");
-               lbs_deb_usbd(&urb->dev->dev, "Actual length transmitted %d\n",
-                      urb->actual_length);
-               */
+               lbs_deb_usb2(&urb->dev->dev, "URB status is successful\n");
+               lbs_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n",
+                            urb->actual_length);
 
                /* Used for both firmware TX and regular TX.  priv isn't
                 * valid at firmware load time.
@@ -79,10 +80,10 @@ static void if_usb_write_bulk_callback(struct urb *urb)
 
 /**
  *  @brief  free tx/rx urb, skb and rx buffer
- *  @param cardp       pointer usb_card_rec
+ *  @param cardp       pointer if_usb_card
  *  @return            N/A
  */
-static void if_usb_free(struct usb_card_rec *cardp)
+static void if_usb_free(struct if_usb_card *cardp)
 {
        lbs_deb_enter(LBS_DEB_USB);
 
@@ -96,26 +97,48 @@ static void if_usb_free(struct usb_card_rec *cardp)
        usb_free_urb(cardp->rx_urb);
        cardp->rx_urb = NULL;
 
-       kfree(cardp->bulk_out_buffer);
-       cardp->bulk_out_buffer = NULL;
+       kfree(cardp->ep_out_buf);
+       cardp->ep_out_buf = NULL;
 
        lbs_deb_leave(LBS_DEB_USB);
 }
 
-static void if_usb_set_boot2_ver(struct lbs_private *priv)
+static void if_usb_setup_firmware(struct lbs_private *priv)
 {
+       struct if_usb_card *cardp = priv->card;
        struct cmd_ds_set_boot2_ver b2_cmd;
+       struct cmd_ds_802_11_fw_wake_method wake_method;
 
+       b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd));
        b2_cmd.action = 0;
-       b2_cmd.version = priv->boot2_version;
+       b2_cmd.version = cardp->boot2_version;
 
-       if (lbs_cmd(priv, CMD_SET_BOOT2_VER, b2_cmd, NULL, 0))
+       if (lbs_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd))
                lbs_deb_usb("Setting boot2 version failed\n");
+
+       priv->wol_gpio = 2; /* Wake via GPIO2... */
+       priv->wol_gap = 20; /* ... after 20ms    */
+       lbs_host_sleep_cfg(priv, EHS_WAKE_ON_UNICAST_DATA);
+
+       wake_method.hdr.size = cpu_to_le16(sizeof(wake_method));
+       wake_method.action = cpu_to_le16(CMD_ACT_GET);
+       if (lbs_cmd_with_response(priv, CMD_802_11_FW_WAKE_METHOD, &wake_method)) {
+               lbs_pr_info("Firmware does not seem to support PS mode\n");
+       } else {
+               if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
+                       lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
+                       priv->ps_supported = 1;
+               } else {
+                       /* The versions which boot up this way don't seem to
+                          work even if we set it to the command interrupt */
+                       lbs_pr_info("Firmware doesn't wake via command interrupt; disabling PS mode\n");
+               }
+       }
 }
 
 static void if_usb_fw_timeo(unsigned long priv)
 {
-       struct usb_card_rec *cardp = (void *)priv;
+       struct if_usb_card *cardp = (void *)priv;
 
        if (cardp->fwdnldover) {
                lbs_deb_usb("Download complete, no event. Assuming success\n");
@@ -125,6 +148,7 @@ static void if_usb_fw_timeo(unsigned long priv)
        }
        wake_up(&cardp->fw_wq);
 }
+
 /**
  *  @brief sets the configuration values
  *  @param ifnum       interface number
@@ -138,12 +162,12 @@ static int if_usb_probe(struct usb_interface *intf,
        struct usb_host_interface *iface_desc;
        struct usb_endpoint_descriptor *endpoint;
        struct lbs_private *priv;
-       struct usb_card_rec *cardp;
+       struct if_usb_card *cardp;
        int i;
 
        udev = interface_to_usbdev(intf);
 
-       cardp = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL);
+       cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL);
        if (!cardp) {
                lbs_pr_err("Out of memory allocating private data.\n");
                goto error;
@@ -151,12 +175,12 @@ static int if_usb_probe(struct usb_interface *intf,
 
        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;
 
        lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
-              " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
+                    " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
                     le16_to_cpu(udev->descriptor.bcdUSB),
                     udev->descriptor.bDeviceClass,
                     udev->descriptor.bDeviceSubClass,
@@ -164,63 +188,42 @@ static int if_usb_probe(struct usb_interface *intf,
 
        for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
                endpoint = &iface_desc->endpoint[i].desc;
-               if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
-                   && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-                       USB_ENDPOINT_XFER_BULK)) {
-                       /* we found a bulk in endpoint */
-                       lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n",
-                                    le16_to_cpu(endpoint->wMaxPacketSize));
-                       if (!(cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
-                               lbs_deb_usbd(&udev->dev,
-                                      "Rx URB allocation failed\n");
-                               goto dealloc;
-                       }
-                       cardp->bulk_in_size =
-                               le16_to_cpu(endpoint->wMaxPacketSize);
-                       cardp->bulk_in_endpointAddr =
-                           (endpoint->
-                            bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-                       lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n",
-                              endpoint->bEndpointAddress);
-               }
+               if (usb_endpoint_is_bulk_in(endpoint)) {
+                       cardp->ep_in_size = le16_to_cpu(endpoint->wMaxPacketSize);
+                       cardp->ep_in = usb_endpoint_num(endpoint);
 
-               if (((endpoint->
-                     bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
-                    USB_DIR_OUT)
-                   && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-                       USB_ENDPOINT_XFER_BULK)) {
-                       /* We found bulk out endpoint */
-                       if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
-                               lbs_deb_usbd(&udev->dev,
-                                      "Tx URB allocation failed\n");
-                               goto dealloc;
-                       }
+                       lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in);
+                       lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n", cardp->ep_in_size);
 
-                       cardp->bulk_out_size =
-                               le16_to_cpu(endpoint->wMaxPacketSize);
-                       lbs_deb_usbd(&udev->dev,
-                                    "Bulk out size is %d\n",
-                                    le16_to_cpu(endpoint->wMaxPacketSize));
-                       cardp->bulk_out_endpointAddr =
-                           endpoint->bEndpointAddress;
-                       lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n",
-                                   endpoint->bEndpointAddress);
-                       cardp->bulk_out_buffer =
-                           kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
-                                   GFP_KERNEL);
-
-                       if (!cardp->bulk_out_buffer) {
-                               lbs_deb_usbd(&udev->dev,
-                                      "Could not allocate buffer\n");
-                               goto dealloc;
-                       }
+               } else if (usb_endpoint_is_bulk_out(endpoint)) {
+                       cardp->ep_out_size = le16_to_cpu(endpoint->wMaxPacketSize);
+                       cardp->ep_out = usb_endpoint_num(endpoint);
+
+                       lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out);
+                       lbs_deb_usbd(&udev->dev, "Bulk out size is %d\n", cardp->ep_out_size);
                }
        }
+       if (!cardp->ep_out_size || !cardp->ep_in_size) {
+               lbs_deb_usbd(&udev->dev, "Endpoints not found\n");
+               goto dealloc;
+       }
+       if (!(cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
+               lbs_deb_usbd(&udev->dev, "Rx URB allocation failed\n");
+               goto dealloc;
+       }
+       if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
+               lbs_deb_usbd(&udev->dev, "Tx URB allocation failed\n");
+               goto dealloc;
+       }
+       cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, GFP_KERNEL);
+       if (!cardp->ep_out_buf) {
+               lbs_deb_usbd(&udev->dev, "Could not allocate buffer\n");
+               goto dealloc;
+       }
 
        /* Upload firmware */
-       cardp->rinfo.cardp = cardp;
        if (if_usb_prog_firmware(cardp)) {
-               lbs_deb_usbd(&udev->dev, "FW upload failed");
+               lbs_deb_usbd(&udev->dev, "FW upload failed\n");
                goto err_prog_firmware;
        }
 
@@ -231,16 +234,14 @@ static int if_usb_probe(struct usb_interface *intf,
        cardp->priv->fw_ready = 1;
 
        priv->hw_host_to_card = if_usb_host_to_card;
-       priv->hw_get_int_status = if_usb_get_int_status;
-       priv->hw_read_event_cause = if_usb_read_event_cause;
-       priv->boot2_version = udev->descriptor.bcdDevice;
+       cardp->boot2_version = udev->descriptor.bcdDevice;
 
        if_usb_submit_rx_urb(cardp);
 
        if (lbs_start_card(priv))
                goto err_start_card;
 
-       if_usb_set_boot2_ver(priv);
+       if_usb_setup_firmware(priv);
 
        usb_get_dev(udev);
        usb_set_intfdata(intf, cardp);
@@ -265,25 +266,19 @@ error:
  */
 static void if_usb_disconnect(struct usb_interface *intf)
 {
-       struct usb_card_rec *cardp = usb_get_intfdata(intf);
+       struct if_usb_card *cardp = usb_get_intfdata(intf);
        struct lbs_private *priv = (struct lbs_private *) cardp->priv;
 
        lbs_deb_enter(LBS_DEB_MAIN);
 
-       /* Update Surprise removed to TRUE */
        cardp->surprise_removed = 1;
 
        if (priv) {
-
                priv->surpriseremoved = 1;
                lbs_stop_card(priv);
                lbs_remove_card(priv);
        }
 
-       /* this is (apparently?) necessary for future usage of the device */
-       lbs_prepare_and_send_command(priv, CMD_802_11_RESET, CMD_ACT_HALT,
-                       0, 0, NULL);
-
        /* Unlink and free urb */
        if_usb_free(cardp);
 
@@ -298,103 +293,87 @@ static void if_usb_disconnect(struct usb_interface *intf)
  *  @param priv                pointer to struct lbs_private
  *  @return            0
  */
-static int if_usb_send_fw_pkt(struct usb_card_rec *cardp)
+static int if_usb_send_fw_pkt(struct if_usb_card *cardp)
 {
-       struct FWData *fwdata;
-       struct fwheader *fwheader;
-       u8 *firmware = cardp->fw->data;
-
-       fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC);
-
-       if (!fwdata)
-               return -1;
-
-       fwheader = &fwdata->fwheader;
+       struct fwdata *fwdata = cardp->ep_out_buf;
+       uint8_t *firmware = cardp->fw->data;
 
+       /* 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 = cardp->lastseqnum - 1;
+               cardp->fwseqnum--;
        }
 
-       /*
-       lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n",
-                   cardp->totalbytes);
-       */
+       lbs_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n",
+                    cardp->totalbytes);
 
-       memcpy(fwheader, &firmware[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);
 
-       /* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */
        memcpy(fwdata->data, &firmware[cardp->totalbytes],
-              le32_to_cpu(fwdata->fwheader.datalength));
+              le32_to_cpu(fwdata->hdr.datalength));
 
-       /*
-       lbs_deb_usbd(&cardp->udev->dev,
-                   "Data length = %d\n", le32_to_cpu(fwdata->fwheader.datalength));
-       */
+       lbs_deb_usb2(&cardp->udev->dev, "Data length = %d\n",
+                    le32_to_cpu(fwdata->hdr.datalength));
 
-       cardp->fwseqnum = cardp->fwseqnum + 1;
+       fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum);
+       cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength);
 
-       fwdata->seqnum = cpu_to_le32(cardp->fwseqnum);
-       cardp->lastseqnum = cardp->fwseqnum;
-       cardp->totalbytes += le32_to_cpu(fwdata->fwheader.datalength);
+       usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) +
+                    le32_to_cpu(fwdata->hdr.datalength));
+
+       if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
+               lbs_deb_usb2(&cardp->udev->dev, "There are data to follow\n");
+               lbs_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)) {
+               lbs_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n");
+               lbs_deb_usb2(&cardp->udev->dev, "Donwloading FW JUMP BLOCK\n");
 
-       if (fwheader->dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
-               /*
-               lbs_deb_usbd(&cardp->udev->dev, "There are data to follow\n");
-               lbs_deb_usbd(&cardp->udev->dev,
-                           "seqnum = %d totalbytes = %d\n", cardp->fwseqnum,
-                           cardp->totalbytes);
-               */
-               memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
-               usb_tx_block(cardp, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
-
-       } else if (fwdata->fwheader.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) {
-               /*
-               lbs_deb_usbd(&cardp->udev->dev,
-                           "Host has finished FW downloading\n");
-               lbs_deb_usbd(&cardp->udev->dev,
-                           "Donwloading FW JUMP BLOCK\n");
-               */
-               memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
-               usb_tx_block(cardp, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
                cardp->fwfinalblk = 1;
        }
 
-       /*
-       lbs_deb_usbd(&cardp->udev->dev,
-                   "The firmware download is done size is %d\n",
-                   cardp->totalbytes);
-       */
-
-       kfree(fwdata);
+       lbs_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n",
+                    cardp->totalbytes);
 
        return 0;
 }
 
-static int if_usb_reset_device(struct usb_card_rec *cardp)
+static int if_usb_reset_device(struct if_usb_card *cardp)
 {
-       struct cmd_ds_command *cmd = (void *)&cardp->bulk_out_buffer[4];
+       struct cmd_ds_command *cmd = cardp->ep_out_buf + 4;
        int ret;
 
        lbs_deb_enter(LBS_DEB_USB);
 
-       *(__le32 *)cardp->bulk_out_buffer = cpu_to_le32(CMD_TYPE_REQUEST);
+       *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
 
        cmd->command = cpu_to_le16(CMD_802_11_RESET);
        cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
        cmd->result = cpu_to_le16(0);
        cmd->seqnum = cpu_to_le16(0x5a5a);
        cmd->params.reset.action = cpu_to_le16(CMD_ACT_HALT);
-       usb_tx_block(cardp, cardp->bulk_out_buffer, 4 + S_DS_GEN + sizeof(struct cmd_ds_802_11_reset));
+       usb_tx_block(cardp, cardp->ep_out_buf, 4 + S_DS_GEN + sizeof(struct cmd_ds_802_11_reset));
 
        msleep(100);
        ret = usb_reset_device(cardp->udev);
        msleep(100);
 
+#ifdef CONFIG_OLPC
+       if (ret && machine_is_olpc()) {
+               printk(KERN_CRIT "Resetting OLPC wireless via EC...\n");
+               olpc_ec_cmd(0x25, NULL, 0, NULL, 0);
+       }
+#endif
+
        lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
 
        return ret;
@@ -407,7 +386,7 @@ static int if_usb_reset_device(struct usb_card_rec *cardp)
  *  @param nb          data length
  *  @return            0 or -1
  */
-static int usb_tx_block(struct usb_card_rec *cardp, u8 * payload, u16 nb)
+static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb)
 {
        int ret = -1;
 
@@ -419,17 +398,16 @@ static int usb_tx_block(struct usb_card_rec *cardp, u8 * payload, u16 nb)
 
        usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
                          usb_sndbulkpipe(cardp->udev,
-                                         cardp->bulk_out_endpointAddr),
+                                         cardp->ep_out),
                          payload, nb, if_usb_write_bulk_callback, cardp);
 
        cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
 
        if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
-               /*  transfer failed */
                lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret);
                ret = -1;
        } else {
-               /* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */
+               lbs_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n");
                ret = 0;
        }
 
@@ -437,11 +415,10 @@ tx_ret:
        return ret;
 }
 
-static int __if_usb_submit_rx_urb(struct usb_card_rec *cardp,
+static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,
                                  void (*callbackfn)(struct urb *urb))
 {
        struct sk_buff *skb;
-       struct read_cb_info *rinfo = &cardp->rinfo;
        int ret = -1;
 
        if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
@@ -449,27 +426,25 @@ static int __if_usb_submit_rx_urb(struct usb_card_rec *cardp,
                goto rx_ret;
        }
 
-       rinfo->skb = skb;
+       cardp->rx_skb = skb;
 
        /* Fill the receive configuration URB and initialise the Rx call back */
        usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
-                         usb_rcvbulkpipe(cardp->udev,
-                                         cardp->bulk_in_endpointAddr),
+                         usb_rcvbulkpipe(cardp->udev, cardp->ep_in),
                          (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET),
                          MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
-                         rinfo);
+                         cardp);
 
        cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
 
-       /* lbs_deb_usbd(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb); */
+       lbs_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
        if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
-               /* handle failure conditions */
                lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret);
                kfree_skb(skb);
-               rinfo->skb = NULL;
+               cardp->rx_skb = NULL;
                ret = -1;
        } else {
-               /* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */
+               lbs_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n");
                ret = 0;
        }
 
@@ -477,27 +452,26 @@ rx_ret:
        return ret;
 }
 
-static int if_usb_submit_rx_urb_fwload(struct usb_card_rec *cardp)
+static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp)
 {
        return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload);
 }
 
-static int if_usb_submit_rx_urb(struct usb_card_rec *cardp)
+static int if_usb_submit_rx_urb(struct if_usb_card *cardp)
 {
        return __if_usb_submit_rx_urb(cardp, &if_usb_receive);
 }
 
 static void if_usb_receive_fwload(struct urb *urb)
 {
-       struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
-       struct sk_buff *skb = rinfo->skb;
-       struct usb_card_rec *cardp = (struct usb_card_rec *)rinfo->cardp;
+       struct if_usb_card *cardp = urb->context;
+       struct sk_buff *skb = cardp->rx_skb;
        struct fwsyncheader *syncfwheader;
-       struct bootcmdrespStr bootcmdresp;
+       struct bootcmdresp bootcmdresp;
 
        if (urb->status) {
                lbs_deb_usbd(&cardp->udev->dev,
-                           "URB status is failed during fw load\n");
+                            "URB status is failed during fw load\n");
                kfree_skb(skb);
                return;
        }
@@ -510,8 +484,8 @@ static void if_usb_receive_fwload(struct urb *urb)
                        lbs_pr_info("Firmware ready event received\n");
                        wake_up(&cardp->fw_wq);
                } else {
-                       lbs_deb_usb("Waiting for confirmation; got %x %x\n", le32_to_cpu(tmp[0]),
-                                   le32_to_cpu(tmp[1]));
+                       lbs_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);
@@ -520,37 +494,36 @@ static void if_usb_receive_fwload(struct urb *urb)
        if (cardp->bootcmdresp <= 0) {
                memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
                        sizeof(bootcmdresp));
+
                if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) {
                        kfree_skb(skb);
                        if_usb_submit_rx_urb_fwload(cardp);
                        cardp->bootcmdresp = 1;
                        lbs_deb_usbd(&cardp->udev->dev,
-                                   "Received valid boot command response\n");
+                                    "Received valid boot command response\n");
                        return;
                }
-               if (bootcmdresp.u32magicnumber != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) {
-                       if (bootcmdresp.u32magicnumber == cpu_to_le32(CMD_TYPE_REQUEST) ||
-                           bootcmdresp.u32magicnumber == cpu_to_le32(CMD_TYPE_DATA) ||
-                           bootcmdresp.u32magicnumber == cpu_to_le32(CMD_TYPE_INDICATION)) {
+               if (bootcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) {
+                       if (bootcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) ||
+                           bootcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) ||
+                           bootcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) {
                                if (!cardp->bootcmdresp)
                                        lbs_pr_info("Firmware already seems alive; resetting\n");
                                cardp->bootcmdresp = -1;
                        } else {
                                lbs_pr_info("boot cmd response wrong magic number (0x%x)\n",
-                                           le32_to_cpu(bootcmdresp.u32magicnumber));
+                                           le32_to_cpu(bootcmdresp.magic));
                        }
-               } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) {
-                       lbs_pr_info(
-                               "boot cmd response cmd_tag error (%d)\n",
-                               bootcmdresp.u8cmd_tag);
-               } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) {
-                       lbs_pr_info(
-                               "boot cmd response result error (%d)\n",
-                               bootcmdresp.u8result);
+               } else if (bootcmdresp.cmd != BOOT_CMD_FW_BY_USB) {
+                       lbs_pr_info("boot cmd response cmd_tag error (%d)\n",
+                                   bootcmdresp.cmd);
+               } else if (bootcmdresp.result != BOOT_CMD_RESP_OK) {
+                       lbs_pr_info("boot cmd response result error (%d)\n",
+                                   bootcmdresp.result);
                } else {
                        cardp->bootcmdresp = 1;
                        lbs_deb_usbd(&cardp->udev->dev,
-                                   "Received valid boot command response\n");
+                                    "Received valid boot command response\n");
                }
                kfree_skb(skb);
                if_usb_submit_rx_urb_fwload(cardp);
@@ -565,20 +538,15 @@ static void if_usb_receive_fwload(struct urb *urb)
        }
 
        memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET,
-                       sizeof(struct fwsyncheader));
+              sizeof(struct fwsyncheader));
 
        if (!syncfwheader->cmd) {
-               /*
-               lbs_deb_usbd(&cardp->udev->dev,
-                           "FW received Blk with correct CRC\n");
-               lbs_deb_usbd(&cardp->udev->dev,
-                           "FW received Blk seqnum = %d\n",
-                      syncfwheader->seqnum);
-               */
+               lbs_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n");
+               lbs_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n",
+                            le32_to_cpu(syncfwheader->seqnum));
                cardp->CRC_OK = 1;
        } else {
-               lbs_deb_usbd(&cardp->udev->dev,
-                           "FW received Blk with CRC error\n");
+               lbs_deb_usbd(&cardp->udev->dev, "FW received Blk with CRC error\n");
                cardp->CRC_OK = 0;
        }
 
@@ -605,13 +573,12 @@ static void if_usb_receive_fwload(struct urb *urb)
 #define MRVDRV_MIN_PKT_LEN     30
 
 static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
-                                      struct usb_card_rec *cardp,
+                                      struct if_usb_card *cardp,
                                       struct lbs_private *priv)
 {
-       if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE +
-           MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) {
-               lbs_deb_usbd(&cardp->udev->dev,
-                           "Packet length is Invalid\n");
+       if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN
+           || recvlength < MRVDRV_MIN_PKT_LEN) {
+               lbs_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n");
                kfree_skb(skb);
                return;
        }
@@ -619,19 +586,20 @@ static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
        skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
        skb_put(skb, recvlength);
        skb_pull(skb, MESSAGE_HEADER_LEN);
+
        lbs_process_rxed_packet(priv, skb);
-       priv->upld_len = (recvlength - MESSAGE_HEADER_LEN);
 }
 
-static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
+static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
                                      struct sk_buff *skb,
-                                     struct usb_card_rec *cardp,
+                                     struct if_usb_card *cardp,
                                      struct lbs_private *priv)
 {
-       u8 *cmdbuf;
+       u8 i;
+
        if (recvlength > LBS_CMD_BUFFER_SIZE) {
                lbs_deb_usbd(&cardp->udev->dev,
-                           "The receive buffer is too large\n");
+                            "The receive buffer is too large\n");
                kfree_skb(skb);
                return;
        }
@@ -640,27 +608,19 @@ static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
                BUG();
 
        spin_lock(&priv->driver_lock);
-       /* take care of cur_cmd = NULL case by reading the
-        * data to clear the interrupt */
-       if (!priv->cur_cmd) {
-               cmdbuf = priv->upld_buf;
-               priv->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
-       } else
-               cmdbuf = (u8 *) priv->cur_cmd->cmdbuf;
-
-       cardp->usb_int_cause |= MRVDRV_CMD_UPLD_RDY;
-       priv->upld_len = (recvlength - MESSAGE_HEADER_LEN);
-       memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN,
-              priv->upld_len);
 
+       i = (priv->resp_idx == 0) ? 1 : 0;
+       BUG_ON(priv->resp_len[i]);
+       priv->resp_len[i] = (recvlength - MESSAGE_HEADER_LEN);
+       memcpy(priv->resp_buf[i], recvbuff + MESSAGE_HEADER_LEN,
+               priv->resp_len[i]);
        kfree_skb(skb);
-       lbs_interrupt(priv);
+       lbs_notify_command_response(priv, i);
+
        spin_unlock(&priv->driver_lock);
 
        lbs_deb_usbd(&cardp->udev->dev,
                    "Wake up main thread to handle cmd response\n");
-
-       return;
 }
 
 /**
@@ -672,30 +632,27 @@ static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
  */
 static void if_usb_receive(struct urb *urb)
 {
-       struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
-       struct sk_buff *skb = rinfo->skb;
-       struct usb_card_rec *cardp = (struct usb_card_rec *) rinfo->cardp;
+       struct if_usb_card *cardp = urb->context;
+       struct sk_buff *skb = cardp->rx_skb;
        struct lbs_private *priv = cardp->priv;
-
        int recvlength = urb->actual_length;
-       u8 *recvbuff = NULL;
-       u32 recvtype = 0;
+       uint8_t *recvbuff = NULL;
+       uint32_t recvtype = 0;
+       __le32 *pkt = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET);
+       uint32_t event;
 
        lbs_deb_enter(LBS_DEB_USB);
 
        if (recvlength) {
-               __le32 tmp;
-
                if (urb->status) {
-                       lbs_deb_usbd(&cardp->udev->dev,
-                                   "URB status is failed\n");
+                       lbs_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n",
+                                    urb->status);
                        kfree_skb(skb);
                        goto setup_for_next;
                }
 
                recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
-               memcpy(&tmp, recvbuff, sizeof(u32));
-               recvtype = le32_to_cpu(tmp);
+               recvtype = le32_to_cpu(pkt[0]);
                lbs_deb_usbd(&cardp->udev->dev,
                            "Recv length = 0x%x, Recv type = 0x%X\n",
                            recvlength, recvtype);
@@ -714,25 +671,23 @@ static void if_usb_receive(struct urb *urb)
                break;
 
        case CMD_TYPE_INDICATION:
-               /* Event cause handling */
-               spin_lock(&priv->driver_lock);
-               cardp->usb_event_cause = le32_to_cpu(*(__le32 *) (recvbuff + MESSAGE_HEADER_LEN));
-               lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n",
-                           cardp->usb_event_cause);
-               if (cardp->usb_event_cause & 0xffff0000) {
-                       lbs_send_tx_feedback(priv);
-                       spin_unlock(&priv->driver_lock);
-                       break;
-               }
-               cardp->usb_event_cause <<= 3;
-               cardp->usb_int_cause |= MRVDRV_CARDEVENT;
+               /* Event handling */
+               event = le32_to_cpu(pkt[1]);
+               lbs_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n", event);
                kfree_skb(skb);
-               lbs_interrupt(priv);
-               spin_unlock(&priv->driver_lock);
-               goto rx_exit;
+
+               /* Icky undocumented magic special case */
+               if (event & 0xffff0000) {
+                       u32 trycount = (event & 0xffff0000) >> 16;
+
+                       lbs_send_tx_feedback(priv, trycount);
+               } else
+                       lbs_queue_event(priv, event & 0xFF);
+               break;
+
        default:
                lbs_deb_usbd(&cardp->udev->dev, "Unknown command type 0x%X\n",
-                            recvtype);
+                            recvtype);
                kfree_skb(skb);
                break;
        }
@@ -751,56 +706,25 @@ rx_exit:
  *  @param len         number of bytes
  *  @return            0 or -1
  */
-static int if_usb_host_to_card(struct lbs_private *priv,
-       u8 type,
-       u8 *payload,
-       u16 nb)
+static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type,
+                              uint8_t *payload, uint16_t nb)
 {
-       struct usb_card_rec *cardp = (struct usb_card_rec *)priv->card;
+       struct if_usb_card *cardp = priv->card;
 
        lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type);
        lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb);
 
        if (type == MVMS_CMD) {
-               __le32 tmp = cpu_to_le32(CMD_TYPE_REQUEST);
+               *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
                priv->dnld_sent = DNLD_CMD_SENT;
-               memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
-                      MESSAGE_HEADER_LEN);
-
        } else {
-               __le32 tmp = cpu_to_le32(CMD_TYPE_DATA);
+               *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA);
                priv->dnld_sent = DNLD_DATA_SENT;
-               memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
-                      MESSAGE_HEADER_LEN);
        }
 
-       memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb);
+       memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb);
 
-       return usb_tx_block(cardp, cardp->bulk_out_buffer,
-                           nb + MESSAGE_HEADER_LEN);
-}
-
-/* called with priv->driver_lock held */
-static int if_usb_get_int_status(struct lbs_private *priv, u8 *ireg)
-{
-       struct usb_card_rec *cardp = priv->card;
-
-       *ireg = cardp->usb_int_cause;
-       cardp->usb_int_cause = 0;
-
-       lbs_deb_usbd(&cardp->udev->dev,"Int cause is 0x%X\n", *ireg);
-
-       return 0;
-}
-
-static int if_usb_read_event_cause(struct lbs_private *priv)
-{
-       struct usb_card_rec *cardp = priv->card;
-
-       priv->eventcause = cardp->usb_event_cause;
-       /* Re-submit rx urb here to avoid event lost issue */
-       if_usb_submit_rx_urb(cardp);
-       return 0;
+       return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN);
 }
 
 /**
@@ -809,20 +733,17 @@ static int if_usb_read_event_cause(struct lbs_private *priv)
  *                  2:Boot from FW in EEPROM
  *  @return            0
  */
-static int if_usb_issue_boot_command(struct usb_card_rec *cardp, int ivalue)
+static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue)
 {
-       struct bootcmdstr sbootcmd;
-       int i;
+       struct bootcmd *bootcmd = cardp->ep_out_buf;
 
        /* Prepare command */
-       sbootcmd.u32magicnumber = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER);
-       sbootcmd.u8cmd_tag = ivalue;
-       for (i=0; i<11; i++)
-               sbootcmd.au8dumy[i]=0x00;
-       memcpy(cardp->bulk_out_buffer, &sbootcmd, sizeof(struct bootcmdstr));
+       bootcmd->magic = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER);
+       bootcmd->cmd = ivalue;
+       memset(bootcmd->pad, 0, sizeof(bootcmd->pad));
 
        /* Issue command */
-       usb_tx_block(cardp, cardp->bulk_out_buffer, sizeof(struct bootcmdstr));
+       usb_tx_block(cardp, cardp->ep_out_buf, sizeof(*bootcmd));
 
        return 0;
 }
@@ -835,10 +756,10 @@ static int if_usb_issue_boot_command(struct usb_card_rec *cardp, int ivalue)
  *         len               image length
  *  @return     0 or -1
  */
-static int check_fwfile_format(u8 *data, u32 totlen)
+static int check_fwfile_format(uint8_t *data, uint32_t totlen)
 {
-       u32 bincmd, exit;
-       u32 blksize, offset, len;
+       uint32_t bincmd, exit;
+       uint32_t blksize, offset, len;
        int ret;
 
        ret = 1;
@@ -876,7 +797,7 @@ static int check_fwfile_format(u8 *data, u32 totlen)
 }
 
 
-static int if_usb_prog_firmware(struct usb_card_rec *cardp)
+static int if_usb_prog_firmware(struct if_usb_card *cardp)
 {
        int i = 0;
        static int reset_count = 10;
@@ -937,7 +858,7 @@ restart:
 
        /* ... and wait for the process to complete */
        wait_event_interruptible(cardp->fw_wq, cardp->surprise_removed || cardp->fwdnldover);
-       
+
        del_timer_sync(&cardp->fw_timeout);
        usb_kill_urb(cardp->rx_urb);
 
@@ -953,11 +874,11 @@ restart:
                goto release_fw;
        }
 
-release_fw:
+ release_fw:
        release_firmware(cardp->fw);
        cardp->fw = NULL;
 
-done:
+ done:
        lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
        return ret;
 }
@@ -966,36 +887,38 @@ done:
 #ifdef CONFIG_PM
 static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
 {
-       struct usb_card_rec *cardp = usb_get_intfdata(intf);
+       struct if_usb_card *cardp = usb_get_intfdata(intf);
        struct lbs_private *priv = cardp->priv;
+       int ret;
 
        lbs_deb_enter(LBS_DEB_USB);
 
        if (priv->psstate != PS_STATE_FULL_POWER)
                return -1;
 
-       netif_device_detach(priv->dev);
-       netif_device_detach(priv->mesh_dev);
+       ret = lbs_suspend(priv);
+       if (ret)
+               goto out;
 
        /* Unlink tx & rx urb */
        usb_kill_urb(cardp->tx_urb);
        usb_kill_urb(cardp->rx_urb);
 
+ out:
        lbs_deb_leave(LBS_DEB_USB);
-       return 0;
+       return ret;
 }
 
 static int if_usb_resume(struct usb_interface *intf)
 {
-       struct usb_card_rec *cardp = usb_get_intfdata(intf);
+       struct if_usb_card *cardp = usb_get_intfdata(intf);
        struct lbs_private *priv = cardp->priv;
 
        lbs_deb_enter(LBS_DEB_USB);
 
        if_usb_submit_rx_urb(cardp);
 
-       netif_device_attach(priv->dev);
-       netif_device_attach(priv->mesh_dev);
+       lbs_resume(priv);
 
        lbs_deb_leave(LBS_DEB_USB);
        return 0;
@@ -1012,6 +935,7 @@ static struct usb_driver if_usb_driver = {
        .id_table = if_usb_table,
        .suspend = if_usb_suspend,
        .resume = if_usb_resume,
+       .reset_resume = if_usb_resume,
 };
 
 static int __init if_usb_init_module(void)
@@ -1039,5 +963,5 @@ module_init(if_usb_init_module);
 module_exit(if_usb_exit_module);
 
 MODULE_DESCRIPTION("8388 USB WLAN Driver");
-MODULE_AUTHOR("Marvell International Ltd.");
+MODULE_AUTHOR("Marvell International Ltd. and Red Hat, Inc.");
 MODULE_LICENSE("GPL");
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