76 lines
3.5 KiB
C
76 lines
3.5 KiB
C
/* $NetBSD: bcm2835_mboxreg.h,v 1.1 2012/08/20 07:45:24 skrll Exp $ */
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/*-
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* Copyright (c) 2012 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Nick Hudson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _BCM2835_MBOXREG_H_
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#define _BCM2835_MBOXREG_H_
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/* mailbox 0 (from VC) and mailbox 1 (to VC) */
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#define BCM2835_MBOX_SIZE 0x80
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#define BCM2835_MBOX_READ 0x00
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#define BCM2835_MBOX_WRITE 0x00
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#define BCM2835_MBOX_POLL 0x10 /* read without popping the fifo */
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#define BCM2835_MBOX_ID 0x14 /* sender ID (bottom two bits) */
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#define BCM2835_MBOX_STATUS 0x18 /* status */
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#define BCM2835_MBOX_STATUS_FULL 0x80000000
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#define BCM2835_MBOX_STATUS_EMPTY 0x40000000
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#define BCM2835_MBOX_STATUS_LEVEL 0x400000FF
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#define BCM2835_MBOX_CFG 0x1C /* configuration */
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#define BCM2835_MBOX_CFG_DATAIRQEN 0x00000001
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#define BCM2835_MBOX_CFG_SPACEIRQEN 0x00000002
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#define BCM2835_MBOX_CFG_EMPTYOPIRQEN 0x00000004
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#define BCM2835_MBOX_CFG_MAILCLEAR 0x00000008
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#define BCM2835_MBOX_CFG_DATAPENDING 0x00000010
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#define BCM2835_MBOX_CFG_SPACEPENDING 0x00000020
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#define BCM2835_MBOX_CFG_EMPTYOPPENDING 0x00000040
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#define BCM2835_MBOX_CFG_ENOOWN 0x00000100
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#define BCM2835_MBOX_CFG_EOVERFLOW 0x00000200
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#define BCM2835_MBOX_CFG_EUNDERFLOW 0x00000400
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#define BCM2835_MBOX0_BASE 0x00
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#define BCM2835_MBOX1_BASE 0x20
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#define BCM2835_MBOX0_READ (BCM2835_MBOX0_BASE + BCM2835_MBOX_READ)
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#define BCM2835_MBOX0_WRITE (BCM2835_MBOX0_BASE + BCM2835_MBOX_WRITE)
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#define BCM2835_MBOX0_POLL (BCM2835_MBOX0_BASE + BCM2835_MBOX_POLL)
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#define BCM2835_MBOX0_ID (BCM2835_MBOX0_BASE + BCM2835_MBOX_ID)
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#define BCM2835_MBOX0_STATUS (BCM2835_MBOX0_BASE + BCM2835_MBOX_STATUS)
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#define BCM2835_MBOX0_CFG (BCM2835_MBOX0_BASE + BCM2835_MBOX_READ)
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#define BCM2835_MBOX1_READ (BCM2835_MBOX1_BASE + BCM2835_MBOX_READ)
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#define BCM2835_MBOX1_WRITE (BCM2835_MBOX1_BASE + BCM2835_MBOX_WRITE)
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#define BCM2835_MBOX1_POLL (BCM2835_MBOX1_BASE + BCM2835_MBOX_POLL)
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#define BCM2835_MBOX1_ID (BCM2835_MBOX1_BASE + BCM2835_MBOX_ID)
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#define BCM2835_MBOX1_STATUS (BCM2835_MBOX1_BASE + BCM2835_MBOX_STATUS)
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#define BCM2835_MBOX1_CFG (BCM2835_MBOX1_BASE + BCM2835_MBOX_READ)
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#endif /* _BCM2835_MBOXREG_H_ */
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