/**
* @brief Free resource and cleanup
*
* @param intf Pointer to usb_interface
*
* @return N/A
*/
static void
woal_usb_disconnect(struct usb_interface *intf)
{
struct usb_card_rec *cardp = usb_get_intfdata(intf);
moal_handle *phandle = NULL;
ENTER();
if (!cardp || !cardp->phandle) {
PRINTM(MERROR, "Card or phandle is not valid\n");
LEAVE();
return;
}
phandle = (moal_handle *) cardp->phandle;
/*
* Update Surprise removed to TRUE
* Free all the URB's allocated
*/
phandle->surprise_removed = MTRUE;
/* Unlink and free urb */
woal_usb_free(cardp);
/* Card is removed and we can call wlan_remove_card */
PRINTM(MINFO, "Call remove card\n");
woal_remove_card(cardp);
/* Reset device */
usb_reset_device(cardp->udev);
usb_set_intfdata(intf, NULL);
usb_put_dev(interface_to_usbdev(intf));
kfree(cardp);
LEAVE();
return;
}
/**
* @brief Sets the configuration values
*
* @param intf Pointer to usb_interface
* @param id Pointer to usb_device_id
*
* @return Address of variable usb_cardp
*/
static int
woal_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;
int i;
struct usb_card_rec *usb_cardp = NULL;
ENTER();
udev = interface_to_usbdev(intf);
usb_cardp = kzalloc(sizeof(struct usb_card_rec), GFP_ATOMIC);
if (!usb_cardp) {
LEAVE();
return (-ENOMEM);
}
udev->descriptor.idVendor = woal_cpu_to_le16(udev->descriptor.idVendor);
udev->descriptor.idProduct = woal_cpu_to_le16(udev->descriptor.idProduct);
udev->descriptor.bcdDevice = woal_cpu_to_le16(udev->descriptor.bcdDevice);
udev->descriptor.bcdUSB = woal_cpu_to_le16(udev->descriptor.bcdUSB);
/* Check probe is for our device */
for (i = 0; woal_usb_table[i].idVendor; i++) {
if (udev->descriptor.idVendor == woal_usb_table[i].idVendor &&
udev->descriptor.idProduct == woal_usb_table[i].idProduct) {
PRINTM(MSG, "VID/PID = %X/%X, Boot2 version = %X\n",
udev->descriptor.idVendor, udev->descriptor.idProduct,
udev->descriptor.bcdDevice);
break;
}
}
if (woal_usb_table[i].idVendor) {
usb_cardp->udev = udev;
iface_desc = intf->cur_altsetting;
PRINTM(INFO, "bcdUSB = 0x%X bDeviceClass = 0x%X"
" bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
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 ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) &&
((endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) ==
MLAN_USB_EP_CMD_EVENT) &&
((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
/* We found a bulk in command/event endpoint */
PRINTM(INFO, "Bulk IN: max packet size = %d, address = %d\n",
woal_le16_to_cpu(endpoint->wMaxPacketSize),
endpoint->bEndpointAddress);
usb_cardp->rx_cmd_ep =
(endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
atomic_set(&usb_cardp->rx_cmd_urb_pending, 0);
}
if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) &&
((endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) ==
MLAN_USB_EP_DATA) &&
((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
/* We found a bulk in data endpoint */
PRINTM(INFO, "Bulk IN: max packet size = %d, address = %d\n",
woal_le16_to_cpu(endpoint->wMaxPacketSize),
endpoint->bEndpointAddress);
usb_cardp->rx_data_ep =
(endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
atomic_set(&usb_cardp->rx_data_urb_pending, 0);
usb_cardp->rx_urb_recall = MFALSE;
}
if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
USB_DIR_OUT) &&
((endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) ==
MLAN_USB_EP_DATA) &&
((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
/* We found a bulk out data endpoint */
PRINTM(INFO, "Bulk OUT: max packet size = %d, address = %d\n",
woal_le16_to_cpu(endpoint->wMaxPacketSize),
endpoint->bEndpointAddress);
usb_cardp->tx_data_ep = endpoint->bEndpointAddress;
atomic_set(&usb_cardp->tx_data_urb_pending, 0);
}
if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
USB_DIR_OUT) &&
((endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK) ==
MLAN_USB_EP_CMD_EVENT) &&
((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
/* We found a bulk out command/event endpoint */
PRINTM(INFO, "Bulk OUT: max packet size = %d, address = %d\n",
woal_le16_to_cpu(endpoint->wMaxPacketSize),
endpoint->bEndpointAddress);
usb_cardp->tx_cmd_ep = endpoint->bEndpointAddress;
atomic_set(&usb_cardp->tx_cmd_urb_pending, 0);
usb_cardp->bulk_out_maxpktsize =
woal_le16_to_cpu(endpoint->wMaxPacketSize);
}
}
/* At this point wlan_add_card() will be called */
if (!(woal_add_card(usb_cardp))) {
PRINTM(ERROR, "%s: woal_add_callback failed\n", __FUNCTION__);
goto error;
}
usb_get_dev(udev);
usb_set_intfdata(intf, usb_cardp);
LEAVE();
return 0;
} else {
PRINTM(INFO, "Discard the Probe request\n");
PRINTM(INFO, "VID = 0x%X PID = 0x%X\n", udev->descriptor.idVendor,
udev->descriptor.idProduct);
}
error:
usb_reset_device(udev);
woal_usb_free(usb_cardp);
kfree(usb_cardp);
usb_cardp = NULL;
LEAVE();
return (-ENOMEM);
}
