Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / staging / rtl8712 / recv_linux.c

diff --git a/kernel/drivers/staging/rtl8712/recv_linux.c b/kernel/drivers/staging/rtl8712/recv_linux.c
new file mode 100644 (file)
index 0000000..799a0f9
--- /dev/null
+++ b/kernel/drivers/staging/rtl8712/recv_linux.c
@@ -0,0 +1,153 @@
+/******************************************************************************
+ * recv_linux.c
+ *
+ * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
+ * Linux device driver for RTL8192SU
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * Modifications for inclusion into the Linux staging tree are
+ * Copyright(c) 2010 Larry Finger. All rights reserved.
+ *
+ * Contact information:
+ * WLAN FAE <wlanfae@realtek.com>.
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ ******************************************************************************/
+
+#define _RECV_OSDEP_C_
+
+#include <linux/usb.h>
+
+#include "osdep_service.h"
+#include "drv_types.h"
+#include "wifi.h"
+#include "recv_osdep.h"
+#include "osdep_intf.h"
+#include "ethernet.h"
+#include <linux/if_arp.h>
+#include "usb_ops.h"
+
+/*init os related resource in struct recv_priv*/
+/*alloc os related resource in union recv_frame*/
+int r8712_os_recv_resource_alloc(struct _adapter *padapter,
+                                union recv_frame *precvframe)
+{
+       precvframe->u.hdr.pkt_newalloc = precvframe->u.hdr.pkt = NULL;
+       return _SUCCESS;
+}
+
+/*alloc os related resource in struct recv_buf*/
+int r8712_os_recvbuf_resource_alloc(struct _adapter *padapter,
+                                   struct recv_buf *precvbuf)
+{
+       int res = _SUCCESS;
+
+       precvbuf->irp_pending = false;
+       precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
+       if (precvbuf->purb == NULL)
+               res = _FAIL;
+       precvbuf->pskb = NULL;
+       precvbuf->reuse = false;
+       precvbuf->pallocated_buf = NULL;
+       precvbuf->pbuf = NULL;
+       precvbuf->pdata = NULL;
+       precvbuf->phead = NULL;
+       precvbuf->ptail = NULL;
+       precvbuf->pend = NULL;
+       precvbuf->transfer_len = 0;
+       precvbuf->len = 0;
+       return res;
+}
+
+/*free os related resource in struct recv_buf*/
+int r8712_os_recvbuf_resource_free(struct _adapter *padapter,
+                            struct recv_buf *precvbuf)
+{
+       if (precvbuf->pskb)
+               dev_kfree_skb_any(precvbuf->pskb);
+       if (precvbuf->purb) {
+               usb_kill_urb(precvbuf->purb);
+               usb_free_urb(precvbuf->purb);
+       }
+       return _SUCCESS;
+}
+
+void r8712_handle_tkip_mic_err(struct _adapter *padapter, u8 bgroup)
+{
+       union iwreq_data wrqu;
+       struct iw_michaelmicfailure ev;
+       struct mlme_priv *pmlmepriv  = &padapter->mlmepriv;
+
+       memset(&ev, 0x00, sizeof(ev));
+       if (bgroup)
+               ev.flags |= IW_MICFAILURE_GROUP;
+       else
+               ev.flags |= IW_MICFAILURE_PAIRWISE;
+       ev.src_addr.sa_family = ARPHRD_ETHER;
+       ether_addr_copy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0]);
+       memset(&wrqu, 0x00, sizeof(wrqu));
+       wrqu.data.length = sizeof(ev);
+       wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE, &wrqu,
+                           (char *)&ev);
+}
+
+void r8712_recv_indicatepkt(struct _adapter *padapter,
+                           union recv_frame *precv_frame)
+{
+       struct recv_priv *precvpriv;
+       struct  __queue *pfree_recv_queue;
+       _pkt *skb;
+       struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
+
+       precvpriv = &(padapter->recvpriv);
+       pfree_recv_queue = &(precvpriv->free_recv_queue);
+       skb = precv_frame->u.hdr.pkt;
+       if (skb == NULL)
+               goto _recv_indicatepkt_drop;
+       skb->data = precv_frame->u.hdr.rx_data;
+       skb->len = precv_frame->u.hdr.len;
+       skb_set_tail_pointer(skb, skb->len);
+       if ((pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1))
+               skb->ip_summed = CHECKSUM_UNNECESSARY;
+       else
+               skb->ip_summed = CHECKSUM_NONE;
+       skb->dev = padapter->pnetdev;
+       skb->protocol = eth_type_trans(skb, padapter->pnetdev);
+       netif_rx(skb);
+       precv_frame->u.hdr.pkt = NULL; /* pointers to NULL before
+                                       * r8712_free_recvframe() */
+       r8712_free_recvframe(precv_frame, pfree_recv_queue);
+       return;
+_recv_indicatepkt_drop:
+        /*enqueue back to free_recv_queue*/
+        if (precv_frame)
+               r8712_free_recvframe(precv_frame, pfree_recv_queue);
+        precvpriv->rx_drop++;
+}
+
+static void _r8712_reordering_ctrl_timeout_handler (unsigned long data)
+{
+       struct recv_reorder_ctrl *preorder_ctrl =
+                        (struct recv_reorder_ctrl *)data;
+
+       r8712_reordering_ctrl_timeout_handler(preorder_ctrl);
+}
+
+void r8712_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
+{
+       setup_timer(&preorder_ctrl->reordering_ctrl_timer,
+                    _r8712_reordering_ctrl_timeout_handler,
+                    (unsigned long)preorder_ctrl);
+}