omap_remoteproc.h
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/*
* Remote processor messaging
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Copyright (C) 2011 Google, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted 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 Texas Instruments nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
*/
#ifndef _OMAP_RPMSG_H
#define _OMAP_RPMSG_H
/*
* enum - Predefined Mailbox Messages
*
* @RP_MBOX_READY: informs the M3's that we're up and running. this is
* part of the init sequence sent that the M3 expects to see immediately
* after it is booted.
*
* @RP_MBOX_PENDING_MSG: informs the receiver that there is an inbound
* message waiting in its own receive-side vring. please note that currently
* this message is optional: alternatively, one can explicitly send the index
* of the triggered virtqueue itself. the preferred approach will be decided
* as we progress and experiment with those two different approaches.
*
* @RP_MBOX_CRASH: this message is sent if BIOS crashes
*
* @RP_MBOX_ECHO_REQUEST: a mailbox-level "ping" message.
*
* @RP_MBOX_ECHO_REPLY: a mailbox-level reply to a "ping"
*
* @RP_MBOX_ABORT_REQUEST: a "please crash" request, used for testing the
* recovery mechanism (to some extent).
*/
enum omap_rp_mbox_messages {
RP_MBOX_READY = 0xFFFFFF00,
RP_MBOX_PENDING_MSG = 0xFFFFFF01,
RP_MBOX_CRASH = 0xFFFFFF02,
RP_MBOX_ECHO_REQUEST = 0xFFFFFF03,
RP_MBOX_ECHO_REPLY = 0xFFFFFF04,
RP_MBOX_ABORT_REQUEST = 0xFFFFFF05,
};
#endif /* _OMAP_RPMSG_H */