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author | Johan Hovold <johan@hovoldconsulting.com> | 2016-08-10 12:58:41 +0200 |
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committer | Greg Kroah-Hartman <gregkh@google.com> | 2016-08-10 15:36:34 +0200 |
commit | 7d0e76d6cbbcc7b71f65d39ee2b4231beab42faa (patch) | |
tree | dbd9f5ddf8582fd92c70662d35ced7893282c19f /drivers/staging/greybus/arpc.h | |
parent | 83d474f7aa467a8cc4cb33337a790fea891a98f1 (diff) | |
download | linux-7d0e76d6cbbcc7b71f65d39ee2b4231beab42faa.tar.bz2 |
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>
Diffstat (limited to 'drivers/staging/greybus/arpc.h')
-rw-r--r-- | drivers/staging/greybus/arpc.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/staging/greybus/arpc.h b/drivers/staging/greybus/arpc.h new file mode 100644 index 000000000000..7ce7a84cc33c --- /dev/null +++ b/drivers/staging/greybus/arpc.h @@ -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 */ |