1 /******************************************************************************
2 * Copyright (c) 2016 IBM Corporation
3 * All rights reserved.
4 * This program and the accompanying materials
5 * are made available under the terms of the BSD License
6 * which accompanies this distribution, and is available at
7 * http://www.opensource.org/licenses/bsd-license.php
8 *
9 * Contributors:
10 * IBM Corporation - initial implementation
11 *****************************************************************************/
12
13 #ifndef _LIBVIRTIO_INTERNAL_H
14 #define _LIBVIRTIO_INTERNAL_H
15
16 #include <byteorder.h>
17
virtio_cpu_to_modern16(struct virtio_device * dev,uint16_t val)18 static inline uint16_t virtio_cpu_to_modern16(struct virtio_device *dev, uint16_t val)
19 {
20 return (dev->features & VIRTIO_F_VERSION_1) ? cpu_to_le16(val) : val;
21 }
22
virtio_cpu_to_modern32(struct virtio_device * dev,uint32_t val)23 static inline uint32_t virtio_cpu_to_modern32(struct virtio_device *dev, uint32_t val)
24 {
25 return (dev->features & VIRTIO_F_VERSION_1) ? cpu_to_le32(val) : val;
26 }
27
virtio_cpu_to_modern64(struct virtio_device * dev,uint64_t val)28 static inline uint64_t virtio_cpu_to_modern64(struct virtio_device *dev, uint64_t val)
29 {
30 return (dev->features & VIRTIO_F_VERSION_1) ? cpu_to_le64(val) : val;
31 }
32
virtio_modern16_to_cpu(struct virtio_device * dev,uint16_t val)33 static inline uint16_t virtio_modern16_to_cpu(struct virtio_device *dev, uint16_t val)
34 {
35 return (dev->features & VIRTIO_F_VERSION_1) ? le16_to_cpu(val) : val;
36 }
37
virtio_modern32_to_cpu(struct virtio_device * dev,uint32_t val)38 static inline uint32_t virtio_modern32_to_cpu(struct virtio_device *dev, uint32_t val)
39 {
40 return (dev->features & VIRTIO_F_VERSION_1) ? le32_to_cpu(val) : val;
41 }
42
virtio_modern64_to_cpu(struct virtio_device * dev,uint64_t val)43 static inline uint64_t virtio_modern64_to_cpu(struct virtio_device *dev, uint64_t val)
44 {
45 return (dev->features & VIRTIO_F_VERSION_1) ? le64_to_cpu(val) : val;
46 }
47
48 #endif /* _LIBVIRTIO_INTERNAL_H */
49