+/**
+* @brief This function programs the firmware subject to cmd
+*
+* @param cardp the if_usb_card descriptor
+* fwname firmware or boot2 image file name
+* cmd either BOOT_CMD_FW_BY_USB, BOOT_CMD_UPDATE_FW,
+* or BOOT_CMD_UPDATE_BOOT2.
+* @return 0 or error code
+*/
+static int if_usb_prog_firmware(struct if_usb_card *cardp,
+ const char *fwname, int cmd)
+{
+ struct lbs_private *priv = cardp->priv;
+ unsigned long flags, caps;
+ int ret;
+
+ caps = priv->fwcapinfo;
+ if (((cmd == BOOT_CMD_UPDATE_FW) && !(caps & FW_CAPINFO_FIRMWARE_UPGRADE)) ||
+ ((cmd == BOOT_CMD_UPDATE_BOOT2) && !(caps & FW_CAPINFO_BOOT2_UPGRADE)))
+ return -EOPNOTSUPP;
+
+ /* Ensure main thread is idle. */
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ while (priv->cur_cmd != NULL || priv->dnld_sent != DNLD_RES_RECEIVED) {
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+ if (wait_event_interruptible(priv->waitq,
+ (priv->cur_cmd == NULL &&
+ priv->dnld_sent == DNLD_RES_RECEIVED))) {
+ return -ERESTARTSYS;
+ }
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ }
+ priv->dnld_sent = DNLD_BOOTCMD_SENT;
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+ ret = __if_usb_prog_firmware(cardp, fwname, cmd);
+
+ spin_lock_irqsave(&priv->driver_lock, flags);
+ priv->dnld_sent = DNLD_RES_RECEIVED;
+ spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+ wake_up_interruptible(&priv->waitq);
+
+ return ret;
+}
+
+static int __if_usb_prog_firmware(struct if_usb_card *cardp,
+ const char *fwname, int cmd)