greybus: arpc: move arpc definitions to their own header

Move the ARPC definitions to their own header.

ARPC is not part of greybus, but is rather an implementation-specific
means of communicating with a certain class of host-device hardware.

Note that the same is true for the APBA USB vendor requests, but we keep
them in the greybus header for the time being.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2016-08-10 12:58:41 +02:00 committed by Greg Kroah-Hartman
parent 83d474f7aa
commit 7d0e76d6cb
3 changed files with 86 additions and 29 deletions

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@ -0,0 +1,85 @@
/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014-2016 Google Inc. All rights reserved.
* Copyright(c) 2014-2016 Linaro Ltd. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details.
*
* BSD LICENSE
*
* Copyright(c) 2014-2016 Google Inc. All rights reserved.
* Copyright(c) 2014-2016 Linaro Ltd. 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 of Google Inc. or Linaro Ltd. 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 GOOGLE INC. OR
* LINARO LTD. 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 __ARPC_H
#define __ARPC_H
/* APBridgeA RPC (ARPC) */
enum arpc_result {
ARPC_SUCCESS = 0x00,
ARPC_NO_MEMORY = 0x01,
ARPC_INVALID = 0x02,
ARPC_TIMEOUT = 0x03,
ARPC_UNKNOWN_ERROR = 0xff,
};
struct arpc_request_message {
__le16 id; /* RPC unique id */
__le16 size; /* Size in bytes of header + payload */
__u8 type; /* RPC type */
__u8 data[0]; /* ARPC data */
} __packed;
struct arpc_response_message {
__le16 id; /* RPC unique id */
__u8 result; /* Result of RPC */
} __packed;
/* ARPC requests */
#define ARPC_TYPE_CPORT_RESET 0x00
struct arpc_cport_reset_req {
__le16 cport_id;
} __packed;
#endif /* __ARPC_H */

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@ -14,6 +14,7 @@
#include <linux/list.h>
#include <asm/unaligned.h>
#include "arpc.h"
#include "greybus.h"
#include "greybus_trace.h"
#include "kernel_ver.h"

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@ -268,35 +268,6 @@ struct gb_apb_request_cport_flags {
#define GB_APB_CPORT_FLAG_HIGH_PRIO 0x02
} __packed;
/* APBridgeA RPC (ARPC) */
enum arpc_result {
ARPC_SUCCESS = 0x00,
ARPC_NO_MEMORY = 0x01,
ARPC_INVALID = 0x02,
ARPC_TIMEOUT = 0x03,
ARPC_UNKNOWN_ERROR = 0xff,
};
/* ARPC request */
struct arpc_request_message {
__le16 id; /* RPC unique id */
__le16 size; /* Size in bytes of header + payload */
__u8 type; /* RPC type */
__u8 data[0]; /* ARPC data */
} __packed;
/* ARPC response */
struct arpc_response_message {
__le16 id; /* RPC unique id */
__u8 result; /* Result of RPC */
} __packed;
#define ARPC_TYPE_CPORT_RESET 0x00
struct arpc_cport_reset_req {
__le16 cport_id;
} __packed;
/* Firmware Download Protocol */