remarkable-linux/drivers/staging/greybus/greybus_firmware.h
Viresh Kumar b2abeaa10d greybus: firmware: s/_LEN/_SIZE
Alex Elder pointed out that the macros also count the trailing NULL
('\0') character and so it should be using SIZE instead of LEN.

This patch makes that change.

Reported-by: Alex Elder <alex.elder@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2016-08-12 17:38:19 +02:00

121 lines
4.7 KiB
C

/*
* Greybus Firmware Management User Header
*
* 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) 2016 Google Inc. All rights reserved.
* Copyright(c) 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) 2016 Google Inc. All rights reserved.
* Copyright(c) 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 __GREYBUS_FIRMWARE_USER_H
#define __GREYBUS_FIRMWARE_USER_H
#include <linux/ioctl.h>
#include <linux/types.h>
#define GB_FIRMWARE_U_TAG_MAX_SIZE 10
#define GB_FW_U_LOAD_METHOD_UNIPRO 0x01
#define GB_FW_U_LOAD_METHOD_INTERNAL 0x02
#define GB_FW_U_LOAD_STATUS_FAILED 0x00
#define GB_FW_U_LOAD_STATUS_UNVALIDATED 0x01
#define GB_FW_U_LOAD_STATUS_VALIDATED 0x02
#define GB_FW_U_LOAD_STATUS_VALIDATION_FAILED 0x03
#define GB_FW_U_BACKEND_FW_STATUS_SUCCESS 0x01
#define GB_FW_U_BACKEND_FW_STATUS_FAIL_FIND 0x02
#define GB_FW_U_BACKEND_FW_STATUS_FAIL_FETCH 0x03
#define GB_FW_U_BACKEND_FW_STATUS_FAIL_WRITE 0x04
#define GB_FW_U_BACKEND_FW_STATUS_INT 0x05
#define GB_FW_U_BACKEND_FW_STATUS_RETRY 0x06
#define GB_FW_U_BACKEND_FW_STATUS_NOT_SUPPORTED 0x07
#define GB_FW_U_BACKEND_VERSION_STATUS_SUCCESS 0x01
#define GB_FW_U_BACKEND_VERSION_STATUS_NOT_AVAILABLE 0x02
#define GB_FW_U_BACKEND_VERSION_STATUS_NOT_SUPPORTED 0x03
#define GB_FW_U_BACKEND_VERSION_STATUS_RETRY 0x04
#define GB_FW_U_BACKEND_VERSION_STATUS_FAIL_INT 0x05
/* IOCTL support */
struct fw_mgmt_ioc_get_intf_version {
__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
__u16 major;
__u16 minor;
} __attribute__ ((__packed__));
struct fw_mgmt_ioc_get_backend_version {
__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
__u16 major;
__u16 minor;
__u8 status;
} __attribute__ ((__packed__));
struct fw_mgmt_ioc_intf_load_and_validate {
__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
__u8 load_method;
__u8 status;
__u16 major;
__u16 minor;
} __attribute__ ((__packed__));
struct fw_mgmt_ioc_backend_fw_update {
__u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
__u8 status;
} __attribute__ ((__packed__));
#define FW_MGMT_IOCTL_BASE 'F'
#define FW_MGMT_IOC_GET_INTF_FW _IOR(FW_MGMT_IOCTL_BASE, 0, struct fw_mgmt_ioc_get_intf_version)
#define FW_MGMT_IOC_GET_BACKEND_FW _IOWR(FW_MGMT_IOCTL_BASE, 1, struct fw_mgmt_ioc_get_backend_version)
#define FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE _IOWR(FW_MGMT_IOCTL_BASE, 2, struct fw_mgmt_ioc_intf_load_and_validate)
#define FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE _IOWR(FW_MGMT_IOCTL_BASE, 3, struct fw_mgmt_ioc_backend_fw_update)
#define FW_MGMT_IOC_SET_TIMEOUT_MS _IOW(FW_MGMT_IOCTL_BASE, 4, unsigned int)
#define FW_MGMT_IOC_MODE_SWITCH _IO(FW_MGMT_IOCTL_BASE, 5)
#endif /* __GREYBUS_FIRMWARE_USER_H */