--- /dev/null
+/*
+ * Greybus Firmware Management Protocol Driver.
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ *
+ * Released under the GPLv2 only.
+ */
+
+#include <linux/cdev.h>
+#include <linux/completion.h>
+#include <linux/firmware.h>
+#include <linux/fs.h>
+#include <linux/idr.h>
+#include <linux/ioctl.h>
+#include <linux/uaccess.h>
+
+#include "firmware.h"
+#include "greybus_firmware.h"
+#include "greybus.h"
+
+#define FW_MGMT_TIMEOUT_MS 1000
+
+struct fw_mgmt {
+ struct device *parent;
+ struct gb_connection *connection;
+ /* Common id-map for interface and backend firmware requests */
+ struct ida id_map;
+ struct mutex mutex;
+ struct completion completion;
+ struct cdev cdev;
+ struct device *class_device;
+ dev_t dev_num;
+ unsigned int timeout_jiffies;
+
+ /* Interface Firmware specific fields */
+ u8 intf_fw_request_id;
+ u8 intf_fw_status;
+ u16 intf_fw_major;
+ u16 intf_fw_minor;
+
+ /* Backend Firmware specific fields */
+ u8 backend_fw_request_id;
+ u8 backend_fw_status;
+};
+
+/*
+ * Number of minor devices this driver supports.
+ * There will be exactly one required per Interface.
+ */
+#define NUM_MINORS U8_MAX
+
+static struct class *fw_mgmt_class;
+static dev_t fw_mgmt_dev_num;
+static DEFINE_IDA(fw_mgmt_minors_map);
+
+static int fw_mgmt_interface_fw_version_operation(struct fw_mgmt *fw_mgmt,
+ struct fw_mgmt_ioc_get_fw *fw_info)
+{
+ struct gb_connection *connection = fw_mgmt->connection;
+ struct gb_fw_mgmt_interface_fw_version_response response;
+ int ret;
+
+ ret = gb_operation_sync(connection,
+ GB_FW_MGMT_TYPE_INTERFACE_FW_VERSION, NULL, 0,
+ &response, sizeof(response));
+ if (ret) {
+ dev_err(fw_mgmt->parent,
+ "failed to get interface firmware version (%d)\n", ret);
+ return ret;
+ }
+
+ fw_info->major = le16_to_cpu(response.major);
+ fw_info->minor = le16_to_cpu(response.minor);
+
+ strncpy(fw_info->firmware_tag, response.firmware_tag,
+ GB_FIRMWARE_TAG_MAX_LEN);
+
+ /*
+ * The firmware-tag should be NULL terminated, otherwise throw error but
+ * don't fail.
+ */
+ if (fw_info->firmware_tag[GB_FIRMWARE_TAG_MAX_LEN - 1] != '\0') {
+ dev_err(fw_mgmt->parent,
+ "fw-version: firmware-tag is not NULL terminated\n");
+ fw_info->firmware_tag[GB_FIRMWARE_TAG_MAX_LEN - 1] = '\0';
+ }
+
+ return 0;
+}
+
+static int fw_mgmt_load_and_validate_operation(struct fw_mgmt *fw_mgmt,
+ u8 load_method, const char *tag)
+{
+ struct gb_fw_mgmt_load_and_validate_fw_request request;
+ int ret;
+
+ if (load_method != GB_FW_LOAD_METHOD_UNIPRO &&
+ load_method != GB_FW_LOAD_METHOD_INTERNAL) {
+ dev_err(fw_mgmt->parent,
+ "invalid load-method (%d)\n", load_method);
+ return -EINVAL;
+ }
+
+ request.load_method = load_method;
+ strncpy(request.firmware_tag, tag, GB_FIRMWARE_TAG_MAX_LEN);
+
+ /*
+ * The firmware-tag should be NULL terminated, otherwise throw error and
+ * fail.
+ */
+ if (request.firmware_tag[GB_FIRMWARE_TAG_MAX_LEN - 1] != '\0') {
+ dev_err(fw_mgmt->parent, "load-and-validate: firmware-tag is not NULL terminated\n");
+ return -EINVAL;
+ }
+
+ /* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */
+ ret = ida_simple_get(&fw_mgmt->id_map, 1, 256, GFP_KERNEL);
+ if (ret < 0) {
+ dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n",
+ ret);
+ return ret;
+ }
+
+ fw_mgmt->intf_fw_request_id = ret;
+ request.request_id = ret;
+
+ ret = gb_operation_sync(fw_mgmt->connection,
+ GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW, &request,
+ sizeof(request), NULL, 0);
+ if (ret) {
+ ida_simple_remove(&fw_mgmt->id_map,
+ fw_mgmt->intf_fw_request_id);
+ fw_mgmt->intf_fw_request_id = 0;
+ dev_err(fw_mgmt->parent,
+ "load and validate firmware request failed (%d)\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int fw_mgmt_interface_fw_loaded_operation(struct gb_operation *op)
+{
+ struct gb_connection *connection = op->connection;
+ struct fw_mgmt *fw_mgmt = gb_connection_get_data(connection);
+ struct gb_fw_mgmt_loaded_fw_request *request;
+
+ /* No pending load and validate request ? */
+ if (!fw_mgmt->intf_fw_request_id) {
+ dev_err(fw_mgmt->parent,
+ "unexpected firmware loaded request received\n");
+ return -ENODEV;
+ }
+
+ if (op->request->payload_size != sizeof(*request)) {
+ dev_err(fw_mgmt->parent, "illegal size of firmware loaded request (%zu != %zu)\n",
+ op->request->payload_size, sizeof(*request));
+ return -EINVAL;
+ }
+
+ request = op->request->payload;
+
+ /* Invalid request-id ? */
+ if (request->request_id != fw_mgmt->intf_fw_request_id) {
+ dev_err(fw_mgmt->parent, "invalid request id for firmware loaded request (%02u != %02u)\n",
+ fw_mgmt->intf_fw_request_id, request->request_id);
+ return -ENODEV;
+ }
+
+ ida_simple_remove(&fw_mgmt->id_map, fw_mgmt->intf_fw_request_id);
+ fw_mgmt->intf_fw_request_id = 0;
+ fw_mgmt->intf_fw_status = request->status;
+ fw_mgmt->intf_fw_major = le16_to_cpu(request->major);
+ fw_mgmt->intf_fw_minor = le16_to_cpu(request->minor);
+
+ if (fw_mgmt->intf_fw_status == GB_FW_LOAD_STATUS_FAILED)
+ dev_err(fw_mgmt->parent,
+ "failed to load interface firmware, status:%02x\n",
+ fw_mgmt->intf_fw_status);
+ else if (fw_mgmt->intf_fw_status == GB_FW_LOAD_STATUS_VALIDATION_FAILED)
+ dev_err(fw_mgmt->parent,
+ "failed to validate interface firmware, status:%02x\n",
+ fw_mgmt->intf_fw_status);
+
+ complete(&fw_mgmt->completion);
+
+ return 0;
+}
+
+static int fw_mgmt_backend_fw_version_operation(struct fw_mgmt *fw_mgmt,
+ struct fw_mgmt_ioc_get_fw *fw_info)
+{
+ struct gb_connection *connection = fw_mgmt->connection;
+ struct gb_fw_mgmt_backend_fw_version_request request;
+ struct gb_fw_mgmt_backend_fw_version_response response;
+ int ret;
+
+ strncpy(request.firmware_tag, fw_info->firmware_tag,
+ GB_FIRMWARE_TAG_MAX_LEN);
+
+ /*
+ * The firmware-tag should be NULL terminated, otherwise throw error and
+ * fail.
+ */
+ if (request.firmware_tag[GB_FIRMWARE_TAG_MAX_LEN - 1] != '\0') {
+ dev_err(fw_mgmt->parent, "backend-version: firmware-tag is not NULL terminated\n");
+ return -EINVAL;
+ }
+
+ ret = gb_operation_sync(connection,
+ GB_FW_MGMT_TYPE_BACKEND_FW_VERSION, &request,
+ sizeof(request), &response, sizeof(response));
+ if (ret) {
+ dev_err(fw_mgmt->parent, "failed to get version of %s backend firmware (%d)\n",
+ fw_info->firmware_tag, ret);
+ return ret;
+ }
+
+ fw_info->major = le16_to_cpu(response.major);
+ fw_info->minor = le16_to_cpu(response.minor);
+
+ return 0;
+}
+
+static int fw_mgmt_backend_fw_update_operation(struct fw_mgmt *fw_mgmt,
+ char *tag)
+{
+ struct gb_fw_mgmt_backend_fw_update_request request;
+ int ret;
+
+ strncpy(request.firmware_tag, tag, GB_FIRMWARE_TAG_MAX_LEN);
+
+ /*
+ * The firmware-tag should be NULL terminated, otherwise throw error and
+ * fail.
+ */
+ if (request.firmware_tag[GB_FIRMWARE_TAG_MAX_LEN - 1] != '\0') {
+ dev_err(fw_mgmt->parent, "backend-update: firmware-tag is not NULL terminated\n");
+ return -EINVAL;
+ }
+
+ /* Allocate ids from 1 to 255 (u8-max), 0 is an invalid id */
+ ret = ida_simple_get(&fw_mgmt->id_map, 1, 256, GFP_KERNEL);
+ if (ret < 0) {
+ dev_err(fw_mgmt->parent, "failed to allocate request id (%d)\n",
+ ret);
+ return ret;
+ }
+
+ fw_mgmt->backend_fw_request_id = ret;
+ request.request_id = ret;
+
+ ret = gb_operation_sync(fw_mgmt->connection,
+ GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE, &request,
+ sizeof(request), NULL, 0);
+ if (ret) {
+ ida_simple_remove(&fw_mgmt->id_map,
+ fw_mgmt->backend_fw_request_id);
+ fw_mgmt->backend_fw_request_id = 0;
+ dev_err(fw_mgmt->parent,
+ "backend %s firmware update request failed (%d)\n", tag,
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int fw_mgmt_backend_fw_updated_operation(struct gb_operation *op)
+{
+ struct gb_connection *connection = op->connection;
+ struct fw_mgmt *fw_mgmt = gb_connection_get_data(connection);
+ struct gb_fw_mgmt_backend_fw_updated_request *request;
+
+ /* No pending load and validate request ? */
+ if (!fw_mgmt->backend_fw_request_id) {
+ dev_err(fw_mgmt->parent, "unexpected backend firmware updated request received\n");
+ return -ENODEV;
+ }
+
+ if (op->request->payload_size != sizeof(*request)) {
+ dev_err(fw_mgmt->parent, "illegal size of backend firmware updated request (%zu != %zu)\n",
+ op->request->payload_size, sizeof(*request));
+ return -EINVAL;
+ }
+
+ request = op->request->payload;
+
+ /* Invalid request-id ? */
+ if (request->request_id != fw_mgmt->backend_fw_request_id) {
+ dev_err(fw_mgmt->parent, "invalid request id for backend firmware updated request (%02u != %02u)\n",
+ fw_mgmt->backend_fw_request_id, request->request_id);
+ return -ENODEV;
+ }
+
+ ida_simple_remove(&fw_mgmt->id_map, fw_mgmt->backend_fw_request_id);
+ fw_mgmt->backend_fw_request_id = 0;
+ fw_mgmt->backend_fw_status = request->status;
+
+ if (fw_mgmt->backend_fw_status != GB_FW_BACKEND_FW_STATUS_SUCCESS)
+ dev_err(fw_mgmt->parent,
+ "failed to backend load firmware, status:%02x\n",
+ fw_mgmt->backend_fw_status);
+
+ complete(&fw_mgmt->completion);
+
+ return 0;
+}
+
+/* Char device fops */
+
+static int fw_mgmt_open(struct inode *inode, struct file *file)
+{
+ struct fw_mgmt *fw_mgmt = container_of(inode->i_cdev, struct fw_mgmt,
+ cdev);
+
+ file->private_data = fw_mgmt;
+ return 0;
+}
+
+static int fw_mgmt_ioctl(struct fw_mgmt *fw_mgmt, unsigned int cmd,
+ void __user *buf)
+{
+ struct fw_mgmt_ioc_get_fw fw_info;
+ struct fw_mgmt_ioc_intf_load_and_validate intf_load;
+ struct fw_mgmt_ioc_backend_fw_update backend_update;
+ unsigned int timeout;
+ int ret;
+
+ switch (cmd) {
+ case FW_MGMT_IOC_GET_INTF_FW:
+ ret = fw_mgmt_interface_fw_version_operation(fw_mgmt, &fw_info);
+ if (ret)
+ return ret;
+
+ if (copy_to_user(buf, &fw_info, sizeof(fw_info)))
+ return -EFAULT;
+
+ return 0;
+ case FW_MGMT_IOC_GET_BACKEND_FW:
+ if (copy_from_user(&fw_info, buf, sizeof(fw_info)))
+ return -EFAULT;
+
+ ret = fw_mgmt_backend_fw_version_operation(fw_mgmt, &fw_info);
+ if (ret)
+ return ret;
+
+ if (copy_to_user(buf, &fw_info, sizeof(fw_info)))
+ return -EFAULT;
+
+ return 0;
+ case FW_MGMT_IOC_INTF_LOAD_AND_VALIDATE:
+ if (copy_from_user(&intf_load, buf, sizeof(intf_load)))
+ return -EFAULT;
+
+ ret = fw_mgmt_load_and_validate_operation(fw_mgmt,
+ intf_load.load_method, intf_load.firmware_tag);
+ if (ret)
+ return ret;
+
+ if (!wait_for_completion_timeout(&fw_mgmt->completion,
+ fw_mgmt->timeout_jiffies)) {
+ dev_err(fw_mgmt->parent, "timed out waiting for firmware load and validation to finish\n");
+ return -ETIMEDOUT;
+ }
+
+ intf_load.status = fw_mgmt->intf_fw_status;
+ intf_load.major = cpu_to_le16(fw_mgmt->intf_fw_major);
+ intf_load.minor = cpu_to_le16(fw_mgmt->intf_fw_minor);
+
+ if (copy_to_user(buf, &intf_load, sizeof(intf_load)))
+ return -EFAULT;
+
+ return 0;
+ case FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE:
+ if (copy_from_user(&backend_update, buf,
+ sizeof(backend_update)))
+ return -EFAULT;
+
+ ret = fw_mgmt_backend_fw_update_operation(fw_mgmt,
+ backend_update.firmware_tag);
+ if (ret)
+ return ret;
+
+ if (!wait_for_completion_timeout(&fw_mgmt->completion,
+ fw_mgmt->timeout_jiffies)) {
+ dev_err(fw_mgmt->parent, "timed out waiting for backend firmware update to finish\n");
+ return -ETIMEDOUT;
+ }
+
+ backend_update.status = fw_mgmt->backend_fw_status;
+
+ if (copy_to_user(buf, &backend_update, sizeof(backend_update)))
+ return -EFAULT;
+
+ return 0;
+ case FW_MGMT_IOC_SET_TIMEOUT_MS:
+ if (get_user(timeout, (unsigned int __user *)buf))
+ return -EFAULT;
+
+ if (!timeout) {
+ dev_err(fw_mgmt->parent, "timeout can't be zero\n");
+ return -EINVAL;
+ }
+
+ fw_mgmt->timeout_jiffies = msecs_to_jiffies(timeout);
+
+ return 0;
+ default:
+ return -ENOTTY;
+ }
+}
+
+static long fw_mgmt_ioctl_unlocked(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct fw_mgmt *fw_mgmt = file->private_data;
+ int ret;
+
+ /*
+ * Serialize ioctls
+ *
+ * We don't want the user to do few operations in parallel. For example,
+ * updating Interface firmware in parallel for the same Interface. There
+ * is no need to do things in parallel for speed and we can avoid having
+ * complicated for now.
+ */
+ mutex_lock(&fw_mgmt->mutex);
+ ret = fw_mgmt_ioctl(fw_mgmt, cmd, (void __user *)arg);
+ mutex_unlock(&fw_mgmt->mutex);
+
+ return ret;
+}
+
+static const struct file_operations fw_mgmt_fops = {
+ .owner = THIS_MODULE,
+ .open = fw_mgmt_open,
+ .unlocked_ioctl = fw_mgmt_ioctl_unlocked,
+};
+
+int gb_fw_mgmt_request_handler(struct gb_operation *op)
+{
+ u8 type = op->type;
+
+ switch (type) {
+ case GB_FW_MGMT_TYPE_LOADED_FW:
+ return fw_mgmt_interface_fw_loaded_operation(op);
+ case GB_FW_MGMT_TYPE_BACKEND_FW_UPDATED:
+ return fw_mgmt_backend_fw_updated_operation(op);
+ default:
+ dev_err(&op->connection->bundle->dev,
+ "unsupported request: %u\n", type);
+ return -EINVAL;
+ }
+}
+
+int gb_fw_mgmt_connection_init(struct gb_connection *connection)
+{
+ struct fw_mgmt *fw_mgmt;
+ int ret, minor;
+
+ if (!connection)
+ return 0;
+
+ fw_mgmt = kzalloc(sizeof(*fw_mgmt), GFP_KERNEL);
+ if (!fw_mgmt)
+ return -ENOMEM;
+
+ fw_mgmt->parent = &connection->bundle->dev;
+ fw_mgmt->timeout_jiffies = msecs_to_jiffies(FW_MGMT_TIMEOUT_MS);
+ fw_mgmt->connection = connection;
+
+ gb_connection_set_data(connection, fw_mgmt);
+ init_completion(&fw_mgmt->completion);
+ ida_init(&fw_mgmt->id_map);
+ mutex_init(&fw_mgmt->mutex);
+
+ ret = gb_connection_enable(connection);
+ if (ret)
+ goto err_destroy_ida;
+
+ minor = ida_simple_get(&fw_mgmt_minors_map, 0, NUM_MINORS, GFP_KERNEL);
+ if (minor < 0) {
+ ret = minor;
+ goto err_connection_disable;
+ }
+
+ /* Add a char device to allow userspace to interact with fw-mgmt */
+ fw_mgmt->dev_num = MKDEV(MAJOR(fw_mgmt_dev_num), minor);
+ cdev_init(&fw_mgmt->cdev, &fw_mgmt_fops);
+
+ ret = cdev_add(&fw_mgmt->cdev, fw_mgmt->dev_num, 1);
+ if (ret)
+ goto err_remove_ida;
+
+ /* Add a soft link to the previously added char-dev within the bundle */
+ fw_mgmt->class_device = device_create(fw_mgmt_class, fw_mgmt->parent,
+ fw_mgmt->dev_num, NULL,
+ "fw-mgmt-%d", minor);
+ if (IS_ERR(fw_mgmt->class_device)) {
+ ret = PTR_ERR(fw_mgmt->class_device);
+ goto err_del_cdev;
+ }
+
+ return 0;
+
+err_del_cdev:
+ cdev_del(&fw_mgmt->cdev);
+err_remove_ida:
+ ida_simple_remove(&fw_mgmt_minors_map, minor);
+err_connection_disable:
+ gb_connection_disable(connection);
+err_destroy_ida:
+ ida_destroy(&fw_mgmt->id_map);
+ kfree(fw_mgmt);
+
+ return ret;
+}
+
+void gb_fw_mgmt_connection_exit(struct gb_connection *connection)
+{
+ struct fw_mgmt *fw_mgmt;
+
+ if (!connection)
+ return;
+
+ fw_mgmt = gb_connection_get_data(connection);
+ device_destroy(fw_mgmt_class, fw_mgmt->dev_num);
+ cdev_del(&fw_mgmt->cdev);
+ ida_simple_remove(&fw_mgmt_minors_map, MINOR(fw_mgmt->dev_num));
+ gb_connection_disable(fw_mgmt->connection);
+ ida_destroy(&fw_mgmt->id_map);
+
+ kfree(fw_mgmt);
+}
+
+int fw_mgmt_init(void)
+{
+ int ret;
+
+ fw_mgmt_class = class_create(THIS_MODULE, "gb_fw_mgmt");
+ if (IS_ERR(fw_mgmt_class))
+ return PTR_ERR(fw_mgmt_class);
+
+ ret = alloc_chrdev_region(&fw_mgmt_dev_num, 0, NUM_MINORS,
+ "gb_fw_mgmt");
+ if (ret)
+ goto err_remove_class;
+
+ return 0;
+
+err_remove_class:
+ class_destroy(fw_mgmt_class);
+ return ret;
+}
+
+void fw_mgmt_exit(void)
+{
+ unregister_chrdev_region(fw_mgmt_dev_num, NUM_MINORS);
+ class_destroy(fw_mgmt_class);
+ ida_destroy(&fw_mgmt_minors_map);
+}
--- /dev/null
+/*
+ * Greybus Firmware Management User Header
+ *
+ * This file is provided under the GPLv2 license. When using or
+ * redistributing this file, you may do so under that 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.
+ *
+ * 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_LEN 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
+
+/* IOCTL support */
+struct fw_mgmt_ioc_get_fw {
+ __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_LEN];
+ __u16 major;
+ __u16 minor;
+} __attribute__ ((__packed__));
+
+struct fw_mgmt_ioc_intf_load_and_validate {
+ __u8 firmware_tag[GB_FIRMWARE_U_TAG_MAX_LEN];
+ __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_LEN];
+ __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_fw)
+#define FW_MGMT_IOC_GET_BACKEND_FW _IOWR(FW_MGMT_IOCTL_BASE, 1, struct fw_mgmt_ioc_get_fw)
+#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)
+
+#endif /* __GREYBUS_FIRMWARE_USER_H */
+
projects / platform / kernel / linux-rpi3.git / commitdiff