LXR linux/drivers/staging/greybus/greybus

   1/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
   2/*
   3 * Greybus Firmware Management User Header
   4 *
   5 * Copyright(c) 2016 Google Inc. All rights reserved.
   6 * Copyright(c) 2016 Linaro Ltd. All rights reserved.
   7 */
   8
   9#ifndef __GREYBUS_FIRMWARE_USER_H
  10#define __GREYBUS_FIRMWARE_USER_H
  11
  12#include <linux/ioctl.h>
  13#include <linux/types.h>
  14
  15#define GB_FIRMWARE_U_TAG_MAX_SIZE              10
  16
  17#define GB_FW_U_LOAD_METHOD_UNIPRO              0x01
  18#define GB_FW_U_LOAD_METHOD_INTERNAL            0x02
  19
  20#define GB_FW_U_LOAD_STATUS_FAILED              0x00
  21#define GB_FW_U_LOAD_STATUS_UNVALIDATED         0x01
  22#define GB_FW_U_LOAD_STATUS_VALIDATED           0x02
  23#define GB_FW_U_LOAD_STATUS_VALIDATION_FAILED   0x03
  24
  25#define GB_FW_U_BACKEND_FW_STATUS_SUCCESS       0x01
  26#define GB_FW_U_BACKEND_FW_STATUS_FAIL_FIND     0x02
  27#define GB_FW_U_BACKEND_FW_STATUS_FAIL_FETCH    0x03
  28#define GB_FW_U_BACKEND_FW_STATUS_FAIL_WRITE    0x04
  29#define GB_FW_U_BACKEND_FW_STATUS_INT           0x05
  30#define GB_FW_U_BACKEND_FW_STATUS_RETRY         0x06
  31#define GB_FW_U_BACKEND_FW_STATUS_NOT_SUPPORTED 0x07
  32
  33#define GB_FW_U_BACKEND_VERSION_STATUS_SUCCESS          0x01
  34#define GB_FW_U_BACKEND_VERSION_STATUS_NOT_AVAILABLE    0x02
  35#define GB_FW_U_BACKEND_VERSION_STATUS_NOT_SUPPORTED    0x03
  36#define GB_FW_U_BACKEND_VERSION_STATUS_RETRY            0x04
  37#define GB_FW_U_BACKEND_VERSION_STATUS_FAIL_INT         0x05
  38
  39/* IOCTL support */
  40struct fw_mgmt_ioc_get_intf_version {
  41        __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
  42        __u16 major;
  43        __u16 minor;
  44} __attribute__ ((__packed__));
  45
  46struct fw_mgmt_ioc_get_backend_version {
  47        __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
  48        __u16 major;
  49        __u16 minor;
  50        __u8 status;
  51} __attribute__ ((__packed__));
  52
  53struct fw_mgmt_ioc_intf_load_and_validate {
  54        __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
  55        __u8 load_method;
  56        __u8 status;
  57        __u16 major;
  58        __u16 minor;
  59} __attribute__ ((__packed__));
  60
  61struct fw_mgmt_ioc_backend_fw_update {
  62        __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_SIZE];
  63        __u8 status;
  64} __attribute__ ((__packed__));
  65
  66#define FW_MGMT_IOCTL_BASE                      'F'
  67#define FW_MGMT_IOC_GET_INTF_FW                 _IOR(FW_MGMT_IOCTL_BASE, 0, struct fw_mgmt_ioc_get_intf_version)
  68#define FW_MGMT_IOC_GET_BACKEND_FW              _IOWR(FW_MGMT_IOCTL_BASE, 1, struct fw_mgmt_ioc_get_backend_version)
  69#define FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE      _IOWR(FW_MGMT_IOCTL_BASE, 2, struct fw_mgmt_ioc_intf_load_and_validate)
  70#define FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE      _IOWR(FW_MGMT_IOCTL_BASE, 3, struct fw_mgmt_ioc_backend_fw_update)
  71#define FW_MGMT_IOC_SET_TIMEOUT_MS              _IOW(FW_MGMT_IOCTL_BASE, 4, unsigned int)
  72#define FW_MGMT_IOC_MODE_SWITCH                 _IO(FW_MGMT_IOCTL_BASE, 5)
  73
  74#endif /* __GREYBUS_FIRMWARE_USER_H */
  75
  76