qcacmn: Data path converged internal APIs (Set 2)

Initial check-in of the data path converged APIs that
are currently only implemented by WIN.

Change-Id: I68bc403dc652b514bfcc27f1eac1e9c5ca27c8d8
CRs-Fixed: 993414

dp/inc/cdp_txrx_raw.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2016 The Linux Foundation. All rights reserved.
+ *
+ * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
+ *
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This file was originally distributed by Qualcomm Atheros, Inc.
+ * under proprietary terms before Copyright ownership was assigned
+ * to the Linux Foundation.
+ */
+ /**
+ * @file cdp_txrx_raw.h
+ * @brief Define the host data path raw mode API functions
+ * called by the host control SW and the OS interface module
+ */
+#ifndef _CDP_TXRX_RAW_H_
+#define _CDP_TXRX_RAW_H_
+
+
+/* TODO: adf need to be replaced with qdf */
+extern int ol_txrx_get_nwifi_mode(ol_txrx_vdev_handle vdev);
+#define OL_TXRX_GET_NWIFI_MODE(vdev)  ol_txrx_get_nwifi_mode(vdev)
+/* Questionable -- should this be in OL AND/OR is this used? */
+/* Called by ol_tx_ll_umac_raw_process() */
+/**
+ * @brief encap nbuf(s) from Ethernet II format to 802.11 Raw format
+ * @details
+ *  Note that in the case of IP fragments, the function takes two fragments at a
+ *  time and creates an A-MSDU. If it has seen the first of such fragments, it
+ *  returns 0 to indicate that it needs to consume one more. In this case, the
+ *  caller shouldn't pass the nbuf to lower layers.
+ *  The function is simple and doesn't dynamically take decisions on A-MSDU
+ *  formation. It can be extended to pack more fragments into an A-MSDU if
+ *  required, but in this case there can be greater losses due to the
+ *  environment. The objective of the function is only to simulate regular
+ *  scatter/gather.
+ *
+ * @param vdev - the data virtual device object
+ * @param pnbuf - pointer to nbuf
+ *
+ * @return - 0 on success, -1 on error, 1 if more nbufs need to be consumed.
+ */
+
+int
+ol_rsim_tx_encap(ol_txrx_vdev_handle vdev, qdf_nbuf_t *pnbuf);
+#endif