[s3c24xx] bump to 2.6.30-rc6

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15918 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/s3c24xx/files-2.6.30/drivers/ar6000/include/htc_packet.h

@@ -0,0 +1,138 @@
+/*
+ *
+ * Copyright (c) 2007 Atheros Communications Inc.
+ * All rights reserved.
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation;
+ *
+ *  Software distributed under the License is distributed on an "AS
+ *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ *  implied. See the License for the specific language governing
+ *  rights and limitations under the License.
+ *
+ *
+ *
+ */
+
+#ifndef HTC_PACKET_H_
+#define HTC_PACKET_H_
+
+
+#include "dl_list.h"
+
+struct _HTC_PACKET;
+
+typedef void (* HTC_PACKET_COMPLETION)(void *,struct _HTC_PACKET *);
+
+typedef A_UINT16 HTC_TX_TAG;
+
+typedef struct _HTC_TX_PACKET_INFO {
+    HTC_TX_TAG    Tag;            /* tag used to selective flush packets */
+} HTC_TX_PACKET_INFO;
+
+#define HTC_TX_PACKET_TAG_ALL          0    /* a tag of zero is reserved and used to flush ALL packets */
+#define HTC_TX_PACKET_TAG_INTERNAL     1                                /* internal tags start here */
+#define HTC_TX_PACKET_TAG_USER_DEFINED (HTC_TX_PACKET_TAG_INTERNAL + 9) /* user-defined tags start here */
+
+typedef struct _HTC_RX_PACKET_INFO {
+    A_UINT32    Unused;          /* for future use and to make compilers happy */
+} HTC_RX_PACKET_INFO;
+
+/* wrapper around endpoint-specific packets */
+typedef struct _HTC_PACKET {
+    DL_LIST         ListLink;       /* double link */
+    void            *pPktContext;   /* caller's per packet specific context */
+
+    A_UINT8         *pBufferStart;  /* the true buffer start , the caller can
+                                       store the real buffer start here.  In
+                                       receive callbacks, the HTC layer sets pBuffer
+                                       to the start of the payload past the header. This
+                                       field allows the caller to reset pBuffer when it
+                                       recycles receive packets back to HTC */
+    /*
+     * Pointer to the start of the buffer. In the transmit
+     * direction this points to the start of the payload. In the
+     * receive direction, however, the buffer when queued up
+     * points to the start of the HTC header but when returned
+     * to the caller points to the start of the payload
+     */
+    A_UINT8         *pBuffer;       /* payload start (RX/TX) */
+    A_UINT32        BufferLength;   /* length of buffer */
+    A_UINT32        ActualLength;   /* actual length of payload */
+    int             Endpoint;       /* endpoint that this packet was sent/recv'd from */
+    A_STATUS        Status;         /* completion status */
+    union {
+        HTC_TX_PACKET_INFO  AsTx;   /* Tx Packet specific info */
+        HTC_RX_PACKET_INFO  AsRx;   /* Rx Packet specific info */
+    } PktInfo;
+
+    /* the following fields are for internal HTC use */
+    HTC_PACKET_COMPLETION Completion;   /* completion */
+    void                  *pContext;    /* HTC private completion context */
+    A_UINT32              HTCReserved;  /* reserved */
+} HTC_PACKET;
+
+
+
+#define COMPLETE_HTC_PACKET(p,status)        \
+{                                            \
+    (p)->Status = (status);                  \
+    (p)->Completion((p)->pContext,(p));      \
+}
+
+#define INIT_HTC_PACKET_INFO(p,b,len)             \
+{                                                 \
+    (p)->pBufferStart = (b);                      \
+    (p)->BufferLength = (len);                    \
+}
+
+/* macro to set an initial RX packet for refilling HTC */
+#define SET_HTC_PACKET_INFO_RX_REFILL(p,c,b,len,ep) \
+{                                                 \
+    (p)->pPktContext = (c);                       \
+    (p)->pBuffer = (b);                           \
+    (p)->pBufferStart = (b);                      \
+    (p)->BufferLength = (len);                    \
+    (p)->Endpoint = (ep);                         \
+}
+
+/* fast macro to recycle an RX packet that will be re-queued to HTC */
+#define HTC_PACKET_RESET_RX(p)              \
+    (p)->pBuffer = (p)->pBufferStart
+
+/* macro to set packet parameters for TX */
+#define SET_HTC_PACKET_INFO_TX(p,c,b,len,ep,tag)  \
+{                                                 \
+    (p)->pPktContext = (c);                       \
+    (p)->pBuffer = (b);                           \
+    (p)->ActualLength = (len);                    \
+    (p)->Endpoint = (ep);                         \
+    (p)->PktInfo.AsTx.Tag = (tag);                \
+}
+
+/* HTC Packet Queueing Macros */
+typedef DL_LIST HTC_PACKET_QUEUE;
+/* initialize queue */
+#define INIT_HTC_PACKET_QUEUE(pQ) DL_LIST_INIT((pQ))
+/* enqueue HTC packet to the tail of the queue */
+#define HTC_PACKET_ENQUEUE(pQ,p)  DL_ListInsertTail((pQ),&(p)->ListLink)
+/* test if a queue is empty */
+#define HTC_QUEUE_EMPTY(pQ)       DL_LIST_IS_EMPTY((pQ))
+/* get packet at head without removing it */
+#define HTC_GET_PKT_AT_HEAD(pQ)   A_CONTAINING_STRUCT((DL_LIST_GET_ITEM_AT_HEAD(pQ)),HTC_PACKET,ListLink);
+/* remove a packet from the current list it is linked to */
+#define HTC_PACKET_REMOVE(p)      DL_ListRemove(&(p)->ListLink)
+
+/* dequeue an HTC packet from the head of the queue */
+static INLINE HTC_PACKET *HTC_PACKET_DEQUEUE(HTC_PACKET_QUEUE *queue) {
+    DL_LIST    *pItem = DL_ListRemoveItemFromHead(queue);
+    if (pItem != NULL) {
+        return A_CONTAINING_STRUCT(pItem, HTC_PACKET, ListLink);
+    }
+    return NULL;
+}
+
+#endif /*HTC_PACKET_H_*/