+/*
+ * Copyright (c) 2013 Qualcomm Atheros, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted (subject to the limitations in the
+ * disclaimer below) provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * * Neither the name of Qualcomm Atheros nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
+ * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
+ * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
/*
* @File: dma_engine_api.h
- *
+ *
* @Abstract: DMA Engine api
- *
- * @Notes:
- *
- * Copyright (c) 2008 Atheros Communications Inc.
- * All rights reserved.
*
+ * @Notes:
*/
#ifndef _DMA_ENGINE_API_H
{
struct zsDmaDesc* head;
struct zsDmaDesc* terminator;
-
+
/* Below are fields specific to TX */
VBUF *xmited_buf_head;
- VBUF *xmited_buf_tail;
+ VBUF *xmited_buf_tail;
};
/* hardware API table structure (API descriptions below) */
-struct dma_engine_api
+struct dma_engine_api
{
void (*_init)();
void (*_init_rx_queue)(struct zsDmaQueue *q);
-
+
void (*_init_tx_queue)(struct zsTxDmaQueue *q);
-
+
void (*_config_rx_queue)(struct zsDmaQueue *q, int num_desc, int buf_size);
-
+
void (*_xmit_buf)(struct zsTxDmaQueue *q, VBUF *buf);
-
+
void (*_flush_xmit)(struct zsDmaQueue *q);
-
+
VBUF* (*_reap_recv_buf)(struct zsDmaQueue *q);
-
+
void (*_return_recv_buf)(struct zsDmaQueue *q, VBUF *buf);
-
+
VBUF* (*_reap_xmited_buf)(struct zsTxDmaQueue *q);
-
+
void (*_swap_data)(struct zsDmaDesc* desc);
-
+
int (*_has_compl_packets)(struct zsDmaQueue *q);
-
+
void (*_desc_dump)(struct zsDmaQueue *q);
-
+
/* The functions below are for patchable */
struct zsDmaDesc* (*_get_packet)(struct zsDmaQueue* q);
void (*_reclaim_packet)(struct zsDmaQueue* q, struct zsDmaDesc* desc);
void (*_put_packet)(struct zsDmaQueue* q, struct zsDmaDesc* desc);
-
+
/* room to expand this table by another table */
void *pReserved;
};