69 lines
3.0 KiB
C
69 lines
3.0 KiB
C
/* $NetBSD: nextdmavar.h,v 1.9 1999/08/29 05:56:26 dbj Exp $ */
|
|
/*
|
|
* Copyright (c) 1998 Darrin B. Jewell
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Darrin B. Jewell
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
|
|
struct nextdma_config {
|
|
bus_space_tag_t nd_bst; /* bus space tag */
|
|
bus_space_handle_t nd_bsh; /* bus space handle for device */
|
|
|
|
u_long nd_intr; /* NEXT_I_ values from cpu.h */
|
|
|
|
bus_dma_tag_t nd_dmat;
|
|
|
|
/* This is called to get another map to dma */
|
|
bus_dmamap_t (*nd_continue_cb) __P((void *));
|
|
/* This is called when a map has completed dma */
|
|
void (*nd_completed_cb) __P((bus_dmamap_t, void *));
|
|
/* This is called when dma shuts down */
|
|
void (*nd_shutdown_cb) __P((void *));
|
|
|
|
void *nd_cb_arg; /* callback argument */
|
|
|
|
struct next68k_bus_dma_tag _nd_dmat; /* should probably be elsewhere */
|
|
bus_dmamap_t _nd_map; /* map currently in dd_next */
|
|
int _nd_idx; /* idx of segment currently in dd_next */
|
|
bus_dmamap_t _nd_map_cont; /* map needed to continue DMA */
|
|
int _nd_idx_cont; /* segment index to continue DMA */
|
|
};
|
|
|
|
|
|
/* Configure the interface & initialize private structure vars */
|
|
void nextdma_config __P((struct nextdma_config *));
|
|
void nextdma_init __P((struct nextdma_config *));
|
|
void nextdma_start __P((struct nextdma_config *, u_long));
|
|
|
|
/* query to see if nextdma is finished */
|
|
int nextdma_finished __P(( struct nextdma_config *));
|
|
void nextdma_reset __P((struct nextdma_config *));
|
|
|
|
int nextdma_intr __P((void *));
|
|
void next_dma_print __P((struct nextdma_config *));
|