084708b610
* add CONFIG_LIBERTAS to Kconfig * remove global variable libertas_fw_name, the USB module might want to use a different default FW name than the CF module, so libertas_fw_name is now local to if_usb.c * exported some symbols as GPL Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1011 lines
25 KiB
C
1011 lines
25 KiB
C
/**
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* This file contains functions used in USB interface module.
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*/
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#include <linux/delay.h>
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#include <linux/moduleparam.h>
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#include <linux/firmware.h>
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#include <linux/netdevice.h>
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#include <linux/usb.h>
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#include "host.h"
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#include "decl.h"
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#include "defs.h"
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#include "dev.h"
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#include "if_usb.h"
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#define MESSAGE_HEADER_LEN 4
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static const char usbdriver_name[] = "usb8xxx";
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static u8 *default_fw_name = "usb8388.bin";
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char *libertas_fw_name = NULL;
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module_param_named(fw_name, libertas_fw_name, charp, 0644);
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#define MAX_DEVS 5
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static struct net_device *libertas_devs[MAX_DEVS];
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static int libertas_found = 0;
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static struct usb_device_id if_usb_table[] = {
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/* Enter the device signature inside */
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{ USB_DEVICE(0x1286, 0x2001) },
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{ USB_DEVICE(0x05a3, 0x8388) },
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{} /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, if_usb_table);
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static void if_usb_receive(struct urb *urb);
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static void if_usb_receive_fwload(struct urb *urb);
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static int reset_device(wlan_private *priv);
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static int if_usb_register_dev(wlan_private * priv);
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static int if_usb_unregister_dev(wlan_private *);
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static int if_usb_prog_firmware(wlan_private *);
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static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb);
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static int if_usb_get_int_status(wlan_private * priv, u8 *);
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static int if_usb_read_event_cause(wlan_private *);
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/**
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* @brief call back function to handle the status of the URB
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* @param urb pointer to urb structure
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* @return N/A
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*/
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static void if_usb_write_bulk_callback(struct urb *urb)
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{
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wlan_private *priv = (wlan_private *) (urb->context);
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wlan_adapter *adapter = priv->adapter;
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struct net_device *dev = priv->wlan_dev.netdev;
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/* handle the transmission complete validations */
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if (urb->status != 0) {
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/* print the failure status number for debug */
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lbs_pr_info("URB in failure status\n");
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} else {
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/*
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lbs_deb_usbd(&urb->dev->dev, "URB status is successfull\n");
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lbs_deb_usbd(&urb->dev->dev, "Actual length transmitted %d\n",
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urb->actual_length);
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*/
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priv->wlan_dev.dnld_sent = DNLD_RES_RECEIVED;
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/* Wake main thread if commands are pending */
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if (!adapter->cur_cmd)
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wake_up_interruptible(&priv->mainthread.waitq);
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if ((adapter->connect_status == libertas_connected)) {
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netif_wake_queue(dev);
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netif_wake_queue(priv->mesh_dev);
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}
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}
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return;
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}
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/**
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* @brief free tx/rx urb, skb and rx buffer
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* @param cardp pointer usb_card_rec
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* @return N/A
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*/
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void if_usb_free(struct usb_card_rec *cardp)
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{
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lbs_deb_enter(LBS_DEB_USB);
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/* Unlink tx & rx urb */
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usb_kill_urb(cardp->tx_urb);
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usb_kill_urb(cardp->rx_urb);
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usb_free_urb(cardp->tx_urb);
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cardp->tx_urb = NULL;
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usb_free_urb(cardp->rx_urb);
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cardp->rx_urb = NULL;
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kfree(cardp->bulk_out_buffer);
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cardp->bulk_out_buffer = NULL;
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lbs_deb_leave(LBS_DEB_USB);
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}
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/**
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* @brief sets the configuration values
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* @param ifnum interface number
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* @param id pointer to usb_device_id
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* @return 0 on success, error code on failure
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*/
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static int if_usb_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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{
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struct usb_device *udev;
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struct usb_host_interface *iface_desc;
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struct usb_endpoint_descriptor *endpoint;
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wlan_private *priv;
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struct usb_card_rec *usb_cardp;
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int i;
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udev = interface_to_usbdev(intf);
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usb_cardp = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL);
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if (!usb_cardp) {
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lbs_pr_err("Out of memory allocating private data.\n");
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goto error;
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}
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usb_cardp->udev = udev;
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iface_desc = intf->cur_altsetting;
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lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
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" bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
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udev->descriptor.bcdUSB,
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udev->descriptor.bDeviceClass,
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udev->descriptor.bDeviceSubClass,
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udev->descriptor.bDeviceProtocol);
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for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
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endpoint = &iface_desc->endpoint[i].desc;
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if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
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&& ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
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USB_ENDPOINT_XFER_BULK)) {
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/* we found a bulk in endpoint */
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lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n",
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endpoint->wMaxPacketSize);
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if (!
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(usb_cardp->rx_urb =
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usb_alloc_urb(0, GFP_KERNEL))) {
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lbs_deb_usbd(&udev->dev,
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"Rx URB allocation failed\n");
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goto dealloc;
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}
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usb_cardp->rx_urb_recall = 0;
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usb_cardp->bulk_in_size =
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endpoint->wMaxPacketSize;
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usb_cardp->bulk_in_endpointAddr =
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(endpoint->
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bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
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lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n",
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endpoint->bEndpointAddress);
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}
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if (((endpoint->
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bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
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USB_DIR_OUT)
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&& ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
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USB_ENDPOINT_XFER_BULK)) {
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/* We found bulk out endpoint */
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if (!
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(usb_cardp->tx_urb =
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usb_alloc_urb(0, GFP_KERNEL))) {
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lbs_deb_usbd(&udev->dev,
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"Tx URB allocation failed\n");
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goto dealloc;
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}
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usb_cardp->bulk_out_size =
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endpoint->wMaxPacketSize;
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lbs_deb_usbd(&udev->dev,
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"Bulk out size is %d\n",
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endpoint->wMaxPacketSize);
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usb_cardp->bulk_out_endpointAddr =
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endpoint->bEndpointAddress;
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lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n",
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endpoint->bEndpointAddress);
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usb_cardp->bulk_out_buffer =
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kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
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GFP_KERNEL);
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if (!usb_cardp->bulk_out_buffer) {
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lbs_deb_usbd(&udev->dev,
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"Could not allocate buffer\n");
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goto dealloc;
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}
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}
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}
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/* At this point libertas_add_card() will be called. Don't worry
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* about keeping pwlanpriv around since it will be set on our
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* usb device data in -> add() -> hw_register_dev() -> if_usb_register_dev.
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*/
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if (!(priv = libertas_add_card(usb_cardp)))
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goto dealloc;
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if (libertas_add_mesh(priv))
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goto err_add_mesh;
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priv->hw_register_dev = if_usb_register_dev;
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priv->hw_unregister_dev = if_usb_unregister_dev;
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priv->hw_prog_firmware = if_usb_prog_firmware;
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priv->hw_host_to_card = if_usb_host_to_card;
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priv->hw_get_int_status = if_usb_get_int_status;
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priv->hw_read_event_cause = if_usb_read_event_cause;
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if (libertas_activate_card(priv, libertas_fw_name))
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goto err_activate_card;
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if (libertas_found < MAX_DEVS) {
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libertas_devs[libertas_found] = priv->wlan_dev.netdev;
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libertas_found++;
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}
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usb_get_dev(udev);
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usb_set_intfdata(intf, usb_cardp);
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/*
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* return card structure, which can be got back in the
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* diconnect function as the ptr
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* argument.
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*/
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return 0;
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err_activate_card:
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unregister_netdev(priv->mesh_dev);
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free_netdev(priv->mesh_dev);
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err_add_mesh:
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free_netdev(priv->wlan_dev.netdev);
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kfree(priv->adapter);
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dealloc:
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if_usb_free(usb_cardp);
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error:
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return -ENOMEM;
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}
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/**
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* @brief free resource and cleanup
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* @param udev pointer to usb_device
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* @param ptr pointer to usb_cardp
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* @return N/A
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*/
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static void if_usb_disconnect(struct usb_interface *intf)
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{
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struct usb_card_rec *cardp = usb_get_intfdata(intf);
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wlan_private *priv = (wlan_private *) cardp->priv;
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wlan_adapter *adapter = NULL;
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int i;
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adapter = priv->adapter;
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/*
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* Update Surprise removed to TRUE
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*/
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adapter->surpriseremoved = 1;
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for (i = 0; i<libertas_found; i++) {
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if (libertas_devs[i]==priv->wlan_dev.netdev) {
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libertas_devs[i] = libertas_devs[--libertas_found];
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libertas_devs[libertas_found] = NULL ;
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break;
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}
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}
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/* card is removed and we can call wlan_remove_card */
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lbs_deb_usbd(&cardp->udev->dev, "call remove card\n");
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libertas_remove_mesh(priv);
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libertas_remove_card(priv);
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/* Unlink and free urb */
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if_usb_free(cardp);
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usb_set_intfdata(intf, NULL);
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usb_put_dev(interface_to_usbdev(intf));
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return;
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}
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/**
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* @brief This function download FW
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* @param priv pointer to wlan_private
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* @return 0
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*/
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static int if_prog_firmware(wlan_private * priv)
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{
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struct usb_card_rec *cardp = priv->wlan_dev.card;
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struct FWData *fwdata;
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struct fwheader *fwheader;
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u8 *firmware = priv->firmware->data;
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fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC);
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if (!fwdata)
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return -1;
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fwheader = &fwdata->fwheader;
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if (!cardp->CRC_OK) {
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cardp->totalbytes = cardp->fwlastblksent;
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cardp->fwseqnum = cardp->lastseqnum - 1;
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}
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/*
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lbs_deb_usbd(&cardp->udev->dev, "totalbytes = %d\n",
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cardp->totalbytes);
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*/
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memcpy(fwheader, &firmware[cardp->totalbytes],
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sizeof(struct fwheader));
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cardp->fwlastblksent = cardp->totalbytes;
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cardp->totalbytes += sizeof(struct fwheader);
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/* lbs_deb_usbd(&cardp->udev->dev,"Copy Data\n"); */
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memcpy(fwdata->data, &firmware[cardp->totalbytes],
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fwdata->fwheader.datalength);
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/*
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lbs_deb_usbd(&cardp->udev->dev,
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"Data length = %d\n", fwdata->fwheader.datalength);
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*/
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cardp->fwseqnum = cardp->fwseqnum + 1;
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fwdata->seqnum = cardp->fwseqnum;
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cardp->lastseqnum = fwdata->seqnum;
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cardp->totalbytes += fwdata->fwheader.datalength;
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if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) {
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/*
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lbs_deb_usbd(&cardp->udev->dev, "There is data to follow\n");
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lbs_deb_usbd(&cardp->udev->dev,
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"seqnum = %d totalbytes = %d\n", cardp->fwseqnum,
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cardp->totalbytes);
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*/
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memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
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usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
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} else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) {
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/*
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lbs_deb_usbd(&cardp->udev->dev,
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"Host has finished FW downloading\n");
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lbs_deb_usbd(&cardp->udev->dev,
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"Donwloading FW JUMP BLOCK\n");
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*/
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memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
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usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
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cardp->fwfinalblk = 1;
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}
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|
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/*
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lbs_deb_usbd(&cardp->udev->dev,
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"The firmware download is done size is %d\n",
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cardp->totalbytes);
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*/
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kfree(fwdata);
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return 0;
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}
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|
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static int libertas_do_reset(wlan_private *priv)
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{
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int ret;
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struct usb_card_rec *cardp = priv->wlan_dev.card;
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|
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lbs_deb_enter(LBS_DEB_USB);
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ret = usb_reset_device(cardp->udev);
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if (!ret) {
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msleep(10);
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reset_device(priv);
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msleep(10);
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}
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lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
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|
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return ret;
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}
|
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|
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/**
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* @brief This function transfer the data to the device.
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* @param priv pointer to wlan_private
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* @param payload pointer to payload data
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* @param nb data length
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* @return 0 or -1
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*/
|
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int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb)
|
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{
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/* pointer to card structure */
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struct usb_card_rec *cardp = priv->wlan_dev.card;
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int ret = -1;
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|
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/* check if device is removed */
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if (priv->adapter->surpriseremoved) {
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lbs_deb_usbd(&cardp->udev->dev, "Device removed\n");
|
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goto tx_ret;
|
|
}
|
|
|
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usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
|
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usb_sndbulkpipe(cardp->udev,
|
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cardp->bulk_out_endpointAddr),
|
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payload, nb, if_usb_write_bulk_callback, priv);
|
|
|
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cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
|
|
|
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if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
|
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/* transfer failed */
|
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lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed\n");
|
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ret = -1;
|
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} else {
|
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/* lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb success\n"); */
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ret = 0;
|
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}
|
|
|
|
tx_ret:
|
|
return ret;
|
|
}
|
|
|
|
static int __if_usb_submit_rx_urb(wlan_private * priv,
|
|
void (*callbackfn)
|
|
(struct urb *urb))
|
|
{
|
|
struct usb_card_rec *cardp = priv->wlan_dev.card;
|
|
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))) {
|
|
lbs_pr_err("No free skb\n");
|
|
goto rx_ret;
|
|
}
|
|
|
|
rinfo->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),
|
|
(void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET),
|
|
MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
|
|
rinfo);
|
|
|
|
cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
|
|
|
|
/* lbs_deb_usbd(&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\n");
|
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ret = -1;
|
|
} else {
|
|
/* lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB success\n"); */
|
|
ret = 0;
|
|
}
|
|
|
|
rx_ret:
|
|
return ret;
|
|
}
|
|
|
|
static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv)
|
|
{
|
|
return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload);
|
|
}
|
|
|
|
static inline int if_usb_submit_rx_urb(wlan_private * priv)
|
|
{
|
|
return __if_usb_submit_rx_urb(priv, &if_usb_receive);
|
|
}
|
|
|
|
static void if_usb_receive_fwload(struct urb *urb)
|
|
{
|
|
struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
|
|
wlan_private *priv = rinfo->priv;
|
|
struct sk_buff *skb = rinfo->skb;
|
|
struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
|
|
struct fwsyncheader *syncfwheader;
|
|
struct bootcmdrespStr bootcmdresp;
|
|
|
|
if (urb->status) {
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"URB status is failed during fw load\n");
|
|
kfree_skb(skb);
|
|
return;
|
|
}
|
|
|
|
if (cardp->bootcmdresp == 0) {
|
|
memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
|
|
sizeof(bootcmdresp));
|
|
if (cardp->udev->descriptor.bcdDevice < 0x3106) {
|
|
kfree_skb(skb);
|
|
if_usb_submit_rx_urb_fwload(priv);
|
|
cardp->bootcmdresp = 1;
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"Received valid boot command response\n");
|
|
return;
|
|
}
|
|
if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) {
|
|
lbs_pr_info(
|
|
"boot cmd response wrong magic number (0x%x)\n",
|
|
bootcmdresp.u32magicnumber);
|
|
} 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 {
|
|
cardp->bootcmdresp = 1;
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"Received valid boot command response\n");
|
|
}
|
|
kfree_skb(skb);
|
|
if_usb_submit_rx_urb_fwload(priv);
|
|
return;
|
|
}
|
|
|
|
syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
|
|
if (!syncfwheader) {
|
|
lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
|
|
kfree_skb(skb);
|
|
return;
|
|
}
|
|
|
|
memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET,
|
|
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);
|
|
*/
|
|
cardp->CRC_OK = 1;
|
|
} else {
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"FW received Blk with CRC error\n");
|
|
cardp->CRC_OK = 0;
|
|
}
|
|
|
|
kfree_skb(skb);
|
|
|
|
if (cardp->fwfinalblk) {
|
|
cardp->fwdnldover = 1;
|
|
goto exit;
|
|
}
|
|
|
|
if_prog_firmware(priv);
|
|
|
|
if_usb_submit_rx_urb_fwload(priv);
|
|
exit:
|
|
kfree(syncfwheader);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
#define MRVDRV_MIN_PKT_LEN 30
|
|
|
|
static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
|
|
struct usb_card_rec *cardp,
|
|
wlan_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");
|
|
kfree_skb(skb);
|
|
return;
|
|
}
|
|
|
|
skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
|
|
skb_put(skb, recvlength);
|
|
skb_pull(skb, MESSAGE_HEADER_LEN);
|
|
libertas_process_rxed_packet(priv, skb);
|
|
priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN);
|
|
}
|
|
|
|
static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
|
|
struct sk_buff *skb,
|
|
struct usb_card_rec *cardp,
|
|
wlan_private *priv)
|
|
{
|
|
u8 *cmdbuf;
|
|
if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) {
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"The receive buffer is too large\n");
|
|
kfree_skb(skb);
|
|
return;
|
|
}
|
|
|
|
if (!in_interrupt())
|
|
BUG();
|
|
|
|
spin_lock(&priv->adapter->driver_lock);
|
|
/* take care of cur_cmd = NULL case by reading the
|
|
* data to clear the interrupt */
|
|
if (!priv->adapter->cur_cmd) {
|
|
cmdbuf = priv->wlan_dev.upld_buf;
|
|
priv->adapter->hisregcpy &= ~his_cmdupldrdy;
|
|
} else
|
|
cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr;
|
|
|
|
cardp->usb_int_cause |= his_cmdupldrdy;
|
|
priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN);
|
|
memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN,
|
|
priv->wlan_dev.upld_len);
|
|
|
|
kfree_skb(skb);
|
|
libertas_interrupt(priv->wlan_dev.netdev);
|
|
spin_unlock(&priv->adapter->driver_lock);
|
|
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"Wake up main thread to handle cmd response\n");
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* @brief This function reads of the packet into the upload buff,
|
|
* wake up the main thread and initialise the Rx callack.
|
|
*
|
|
* @param urb pointer to struct urb
|
|
* @return N/A
|
|
*/
|
|
static void if_usb_receive(struct urb *urb)
|
|
{
|
|
struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
|
|
wlan_private *priv = rinfo->priv;
|
|
struct sk_buff *skb = rinfo->skb;
|
|
struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
|
|
|
|
int recvlength = urb->actual_length;
|
|
u8 *recvbuff = NULL;
|
|
u32 recvtype;
|
|
|
|
lbs_deb_enter(LBS_DEB_USB);
|
|
|
|
if (recvlength) {
|
|
if (urb->status) {
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"URB status is failed\n");
|
|
kfree_skb(skb);
|
|
goto setup_for_next;
|
|
}
|
|
|
|
recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
|
|
memcpy(&recvtype, recvbuff, sizeof(u32));
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"Recv length = 0x%x\n", recvlength);
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"Receive type = 0x%X\n", recvtype);
|
|
recvtype = le32_to_cpu(recvtype);
|
|
lbs_deb_usbd(&cardp->udev->dev,
|
|
"Receive type after = 0x%X\n", recvtype);
|
|
} else if (urb->status)
|
|
goto rx_exit;
|
|
|
|
|
|
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 */
|
|
spin_lock(&priv->adapter->driver_lock);
|
|
cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN);
|
|
lbs_deb_usbd(&cardp->udev->dev,"**EVENT** 0x%X\n",
|
|
cardp->usb_event_cause);
|
|
if (cardp->usb_event_cause & 0xffff0000) {
|
|
libertas_send_tx_feedback(priv);
|
|
spin_unlock(&priv->adapter->driver_lock);
|
|
break;
|
|
}
|
|
cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3;
|
|
cardp->usb_int_cause |= his_cardevent;
|
|
kfree_skb(skb);
|
|
libertas_interrupt(priv->wlan_dev.netdev);
|
|
spin_unlock(&priv->adapter->driver_lock);
|
|
goto rx_exit;
|
|
default:
|
|
kfree_skb(skb);
|
|
break;
|
|
}
|
|
|
|
setup_for_next:
|
|
if_usb_submit_rx_urb(priv);
|
|
rx_exit:
|
|
lbs_deb_leave(LBS_DEB_USB);
|
|
}
|
|
|
|
/**
|
|
* @brief This function downloads data to FW
|
|
* @param priv pointer to wlan_private structure
|
|
* @param type type of data
|
|
* @param buf pointer to data buffer
|
|
* @param len number of bytes
|
|
* @return 0 or -1
|
|
*/
|
|
static int if_usb_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb)
|
|
{
|
|
int ret = -1;
|
|
u32 tmp;
|
|
struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.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) {
|
|
tmp = cpu_to_le32(CMD_TYPE_REQUEST);
|
|
priv->wlan_dev.dnld_sent = DNLD_CMD_SENT;
|
|
memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
|
|
MESSAGE_HEADER_LEN);
|
|
|
|
} else {
|
|
tmp = cpu_to_le32(CMD_TYPE_DATA);
|
|
priv->wlan_dev.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);
|
|
|
|
ret =
|
|
usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* called with adapter->driver_lock held */
|
|
static int if_usb_get_int_status(wlan_private * priv, u8 * ireg)
|
|
{
|
|
struct usb_card_rec *cardp = priv->wlan_dev.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(wlan_private * priv)
|
|
{
|
|
struct usb_card_rec *cardp = priv->wlan_dev.card;
|
|
priv->adapter->eventcause = cardp->usb_event_cause;
|
|
/* Re-submit rx urb here to avoid event lost issue */
|
|
if_usb_submit_rx_urb(priv);
|
|
return 0;
|
|
}
|
|
|
|
static int reset_device(wlan_private *priv)
|
|
{
|
|
int ret;
|
|
|
|
lbs_deb_enter(LBS_DEB_USB);
|
|
ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset,
|
|
cmd_act_halt, 0, 0, NULL);
|
|
msleep_interruptible(10);
|
|
|
|
lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
static int if_usb_unregister_dev(wlan_private * priv)
|
|
{
|
|
int ret = 0;
|
|
|
|
/* Need to send a Reset command to device before USB resources freed
|
|
* and wlan_remove_card() called, then device can handle FW download
|
|
* again.
|
|
*/
|
|
if (priv)
|
|
reset_device(priv);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief This function register usb device and initialize parameter
|
|
* @param priv pointer to wlan_private
|
|
* @return 0 or -1
|
|
*/
|
|
static int if_usb_register_dev(wlan_private * priv)
|
|
{
|
|
struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
|
|
|
|
lbs_deb_enter(LBS_DEB_USB);
|
|
|
|
cardp->priv = priv;
|
|
cardp->eth_dev = priv->wlan_dev.netdev;
|
|
priv->hotplug_device = &(cardp->udev->dev);
|
|
|
|
SET_NETDEV_DEV(cardp->eth_dev, &(cardp->udev->dev));
|
|
SET_NETDEV_DEV(priv->mesh_dev, &(cardp->udev->dev));
|
|
|
|
lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n",
|
|
cardp->udev);
|
|
|
|
lbs_deb_leave(LBS_DEB_USB);
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
static int if_usb_prog_firmware(wlan_private * priv)
|
|
{
|
|
struct usb_card_rec *cardp = priv->wlan_dev.card;
|
|
int i = 0;
|
|
static int reset_count = 10;
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_USB);
|
|
|
|
cardp->rinfo.priv = priv;
|
|
|
|
restart:
|
|
if (if_usb_submit_rx_urb_fwload(priv) < 0) {
|
|
lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
|
|
ret = -1;
|
|
goto done;
|
|
}
|
|
|
|
cardp->bootcmdresp = 0;
|
|
do {
|
|
int j = 0;
|
|
i++;
|
|
/* Issue Boot command = 1, Boot from Download-FW */
|
|
if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB);
|
|
/* wait for command response */
|
|
do {
|
|
j++;
|
|
msleep_interruptible(100);
|
|
} while (cardp->bootcmdresp == 0 && j < 10);
|
|
} while (cardp->bootcmdresp == 0 && i < 5);
|
|
|
|
if (cardp->bootcmdresp == 0) {
|
|
if (--reset_count >= 0) {
|
|
libertas_do_reset(priv);
|
|
goto restart;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
i = 0;
|
|
priv->adapter->fw_ready = 0;
|
|
|
|
cardp->totalbytes = 0;
|
|
cardp->fwlastblksent = 0;
|
|
cardp->CRC_OK = 1;
|
|
cardp->fwdnldover = 0;
|
|
cardp->fwseqnum = -1;
|
|
cardp->totalbytes = 0;
|
|
cardp->fwfinalblk = 0;
|
|
|
|
if_prog_firmware(priv);
|
|
|
|
do {
|
|
lbs_deb_usbd(&cardp->udev->dev,"Wlan sched timeout\n");
|
|
i++;
|
|
msleep_interruptible(100);
|
|
if (priv->adapter->surpriseremoved || i >= 20)
|
|
break;
|
|
} while (!cardp->fwdnldover);
|
|
|
|
if (!cardp->fwdnldover) {
|
|
lbs_pr_info("failed to load fw, resetting device!\n");
|
|
if (--reset_count >= 0) {
|
|
libertas_do_reset(priv);
|
|
goto restart;
|
|
}
|
|
|
|
lbs_pr_info("FW download failure, time = %d ms\n", i * 100);
|
|
ret = -1;
|
|
goto done;
|
|
}
|
|
|
|
if_usb_submit_rx_urb(priv);
|
|
|
|
/* Delay 200 ms to waiting for the FW ready */
|
|
msleep_interruptible(200);
|
|
|
|
priv->adapter->fw_ready = 1;
|
|
|
|
done:
|
|
lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
#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);
|
|
wlan_private *priv = cardp->priv;
|
|
|
|
lbs_deb_enter(LBS_DEB_USB);
|
|
|
|
if (priv->adapter->psstate != PS_STATE_FULL_POWER)
|
|
return -1;
|
|
|
|
netif_device_detach(cardp->eth_dev);
|
|
netif_device_detach(priv->mesh_dev);
|
|
|
|
/* Unlink tx & rx urb */
|
|
usb_kill_urb(cardp->tx_urb);
|
|
usb_kill_urb(cardp->rx_urb);
|
|
|
|
cardp->rx_urb_recall = 1;
|
|
|
|
lbs_deb_leave(LBS_DEB_USB);
|
|
return 0;
|
|
}
|
|
|
|
static int if_usb_resume(struct usb_interface *intf)
|
|
{
|
|
struct usb_card_rec *cardp = usb_get_intfdata(intf);
|
|
wlan_private *priv = cardp->priv;
|
|
|
|
lbs_deb_enter(LBS_DEB_USB);
|
|
|
|
cardp->rx_urb_recall = 0;
|
|
|
|
if_usb_submit_rx_urb(cardp->priv);
|
|
|
|
netif_device_attach(cardp->eth_dev);
|
|
netif_device_attach(priv->mesh_dev);
|
|
|
|
lbs_deb_leave(LBS_DEB_USB);
|
|
return 0;
|
|
}
|
|
#else
|
|
#define if_usb_suspend NULL
|
|
#define if_usb_resume NULL
|
|
#endif
|
|
|
|
static struct usb_driver if_usb_driver = {
|
|
/* driver name */
|
|
.name = usbdriver_name,
|
|
/* probe function name */
|
|
.probe = if_usb_probe,
|
|
/* disconnect function name */
|
|
.disconnect = if_usb_disconnect,
|
|
/* device signature table */
|
|
.id_table = if_usb_table,
|
|
.suspend = if_usb_suspend,
|
|
.resume = if_usb_resume,
|
|
};
|
|
|
|
static int if_usb_init_module(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
if (libertas_fw_name == NULL) {
|
|
libertas_fw_name = default_fw_name;
|
|
}
|
|
|
|
ret = usb_register(&if_usb_driver);
|
|
|
|
lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
static void if_usb_exit_module(void)
|
|
{
|
|
int i;
|
|
|
|
lbs_deb_enter(LBS_DEB_MAIN);
|
|
|
|
for (i = 0; i<libertas_found; i++) {
|
|
wlan_private *priv = libertas_devs[i]->priv;
|
|
reset_device(priv);
|
|
}
|
|
|
|
/* API unregisters the driver from USB subsystem */
|
|
usb_deregister(&if_usb_driver);
|
|
|
|
lbs_deb_leave(LBS_DEB_MAIN);
|
|
}
|
|
|
|
module_init(if_usb_init_module);
|
|
module_exit(if_usb_exit_module);
|
|
|
|
MODULE_DESCRIPTION("8388 USB WLAN Driver");
|
|
MODULE_AUTHOR("Marvell International Ltd.");
|
|
MODULE_LICENSE("GPL");
|