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dmacvar.h revision 1.1 
      1 /*	$NetBSD: dmacvar.h,v 1.1 2001/10/16 15:38:36 uch Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /* DO NOT REORDER */
     40 enum dmac_channel {
     41 	D_CH0_VIF0 = 0,
     42 	D_CH1_VIF1,
     43 	D_CH2_GIF,
     44 	D_CH3_FROMIPU,
     45 	D_CH4_TOIPU,
     46 	D_CH5_SIF0,
     47 	D_CH6_SIF1,
     48 	D_CH7_SIF2,
     49 	D_CH8_FROMSPR,
     50 	D_CH9_TOSPR
     51 };
     52 
     53 extern u_int32_t __dmac_enabled_channel;
     54 
     55 void	dmac_init(void);
     56 
     57 /* start/stop */
     58 void	dmac_start_channel(enum dmac_channel);
     59 void	dmac_stop_channel(enum dmac_channel);
     60 void	dmac_sync_buffer(void);
     61 
     62 /* interrupt */
     63 int	dmac_intr(u_int32_t);
     64 void	*dmac_intr_establish(enum dmac_channel, int, int (*)(void *), void *);
     65 void	dmac_intr_disestablish(void *);
     66 void	dmac_intr_disable(enum dmac_channel);
     67 void	dmac_intr_enable(enum dmac_channel);
     68 void	dmac_update_mask(u_int32_t);
     69 
     70 /* polling */
     71 void	dmac_cpc_set(enum dmac_channel);
     72 void	dmac_cpc_clear(enum dmac_channel);
     73 void	dmac_cpc_poll(void);
     74 void	dmac_bus_poll(enum dmac_channel);	/* slow */
     75 
     76 /* misc */
     77 void	dmac_chcr_write(enum dmac_channel, u_int32_t);
     78