| Ohad Ben-Cohen | 34ed5a3 | 2011-10-20 18:53:35 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Remote processor messaging |
| 3 | * |
| 4 | * Copyright (C) 2011 Texas Instruments, Inc. |
| 5 | * Copyright (C) 2011 Google, Inc. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * |
| 12 | * * Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * * Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer in |
| 16 | * the documentation and/or other materials provided with the |
| 17 | * distribution. |
| 18 | * * Neither the name Texas Instruments nor the names of its |
| 19 | * contributors may be used to endorse or promote products derived |
| 20 | * from this software without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 23 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 24 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 25 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 26 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 27 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 28 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 29 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 30 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 31 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 32 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 33 | */ |
| 34 | |
| 35 | #ifndef _OMAP_RPMSG_H |
| 36 | #define _OMAP_RPMSG_H |
| 37 | |
| 38 | /* |
| 39 | * enum - Predefined Mailbox Messages |
| 40 | * |
| 41 | * @RP_MBOX_READY: informs the M3's that we're up and running. this is |
| 42 | * part of the init sequence sent that the M3 expects to see immediately |
| 43 | * after it is booted. |
| 44 | * |
| 45 | * @RP_MBOX_PENDING_MSG: informs the receiver that there is an inbound |
| 46 | * message waiting in its own receive-side vring. please note that currently |
| 47 | * this message is optional: alternatively, one can explicitly send the index |
| 48 | * of the triggered virtqueue itself. the preferred approach will be decided |
| 49 | * as we progress and experiment with those two different approaches. |
| 50 | * |
| 51 | * @RP_MBOX_CRASH: this message is sent if BIOS crashes |
| 52 | * |
| 53 | * @RP_MBOX_ECHO_REQUEST: a mailbox-level "ping" message. |
| 54 | * |
| 55 | * @RP_MBOX_ECHO_REPLY: a mailbox-level reply to a "ping" |
| 56 | * |
| 57 | * @RP_MBOX_ABORT_REQUEST: a "please crash" request, used for testing the |
| 58 | * recovery mechanism (to some extent). |
| 59 | */ |
| 60 | enum omap_rp_mbox_messages { |
| 61 | RP_MBOX_READY = 0xFFFFFF00, |
| 62 | RP_MBOX_PENDING_MSG = 0xFFFFFF01, |
| 63 | RP_MBOX_CRASH = 0xFFFFFF02, |
| 64 | RP_MBOX_ECHO_REQUEST = 0xFFFFFF03, |
| 65 | RP_MBOX_ECHO_REPLY = 0xFFFFFF04, |
| 66 | RP_MBOX_ABORT_REQUEST = 0xFFFFFF05, |
| 67 | }; |
| 68 | |
| 69 | #endif /* _OMAP_RPMSG_H */ |