1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-9-16 GuEe-GUI the first version
* 2021-11-11 GuEe-GUI modify to virtio common interface
*/
#ifndef __VIRTIO_H__
#define __VIRTIO_H__
#include <rthw.h>
#include <rtdef.h>
#ifdef RT_USING_SMART
#include <mmu.h>
#include <ioremap.h>
#endif
#if RT_NAME_MAX < 16
#error "Please set RT_NAME_MAX to at lest 16"
#endif
#ifdef RT_USING_VIRTIO10
#define RT_USING_VIRTIO_VERSION 0x1
#endif
#include <virtio_mmio.h>
#include <virtio_queue.h>
#define VIRTIO_MAGIC_VALUE 0x74726976 /* "virt" */
#define VIRTIO_STATUS_ACKNOWLEDGE (1 << 0)
#define VIRTIO_STATUS_DRIVER (1 << 1)
#define VIRTIO_STATUS_DRIVER_OK (1 << 2)
#define VIRTIO_STATUS_FEATURES_OK (1 << 3)
#define VIRTIO_STATUS_NEEDS_RESET (1 << 6)
#define VIRTIO_STATUS_FAILED (1 << 7)
#define VIRTIO_F_NOTIFY_ON_EMPTY 24
#define VIRTIO_F_ANY_LAYOUT 27
#define VIRTIO_F_RING_INDIRECT_DESC 28
#define VIRTIO_F_RING_EVENT_IDX 29
#define VIRTIO_F_VERSION_1 32
#define VIRTIO_F_RING_PACKED 34
#ifdef RT_USING_SMART
#define VIRTIO_VA2PA(vaddr) ((rt_ubase_t)rt_kmem_v2p(vaddr))
#define VIRTIO_PA2VA(paddr) ((rt_ubase_t)rt_ioremap((void *)paddr, ARCH_PAGE_SIZE))
#else
#define VIRTIO_VA2PA(vaddr) ((rt_ubase_t)vaddr)
#define VIRTIO_PA2VA(paddr) ((rt_ubase_t)paddr)
#endif /* RT_USING_SMART */
#define VIRTIO_PAGE_SHIFT 12
#define VIRTIO_PAGE_SIZE (1 << VIRTIO_PAGE_SHIFT)
#define VIRTIO_PAGE_ALIGN(addr) (RT_ALIGN(addr, VIRTIO_PAGE_SIZE))
enum
{
/* virtio 1.0 */
VIRTIO_DEVICE_ID_INVALID = 0, /* Invalid device */
VIRTIO_DEVICE_ID_NET = 1, /* Net */
VIRTIO_DEVICE_ID_BLOCK = 2, /* Block */
VIRTIO_DEVICE_ID_CONSOLE = 3, /* Console */
VIRTIO_DEVICE_ID_RNG = 4, /* Rng */
VIRTIO_DEVICE_ID_BALLOON = 5, /* Balloon */
VIRTIO_DEVICE_ID_IOMEM = 6, /* IO memory */
VIRTIO_DEVICE_ID_RPMSG = 7, /* Remote processor messaging */
VIRTIO_DEVICE_ID_SCSI = 8, /* SCSI */
VIRTIO_DEVICE_ID_9P = 9, /* 9p console */
VIRTIO_DEVICE_ID_MAC80211_WLAN = 10, /* Mac80211 wlan */
VIRTIO_DEVICE_ID_RPROC_SERIAL = 11, /* Remoteproc serial link */
VIRTIO_DEVICE_ID_CAIF = 12, /* CAIF */
VIRTIO_DEVICE_ID_MEM_BALLOON = 13, /* Memory balloon */
VIRTIO_DEVICE_ID_GPU = 16, /* GPU */
VIRTIO_DEVICE_ID_TIME = 17, /* Timer/clock device */
VIRTIO_DEVICE_ID_INPUT = 18, /* Input */
/* virtio 1.1 */
VIRTIO_DEVICE_ID_SOCKET = 19, /* Socket device */
VIRTIO_DEVICE_ID_CRYPTO = 20, /* Crypto device */
VIRTIO_DEVICE_ID_SIG_DIS_MOD = 21, /* Signal Distribution Module */
VIRTIO_DEVICE_ID_PSTORE = 22, /* Pstore device */
VIRTIO_DEVICE_ID_IOMMU = 23, /* IOMMU device */
VIRTIO_DEVICE_ID_MEM = 24, /* Memory device */
/* virtio 1.2 */
VIRTIO_DEVICE_ID_AUDIO = 25, /* Audio device */
VIRTIO_DEVICE_ID_FS = 26, /* File system device */
VIRTIO_DEVICE_ID_PMEM = 27, /* PMEM device */
VIRTIO_DEVICE_ID_RPMB = 28, /* RPMB device */
VIRTIO_DEVICE_ID_MAC80211_HWSIM = 29, /* Mac80211 hwsim wireless simulation device */
VIRTIO_DEVICE_ID_VIDEO_ENCODER = 30, /* Video encoder device */
VIRTIO_DEVICE_ID_VIDEO_DECODER = 31, /* Video decoder device */
VIRTIO_DEVICE_ID_SCMI = 32, /* SCMI device */
VIRTIO_DEVICE_ID_NITRO_SEC_MOD = 33, /* NitroSecureModule */
VIRTIO_DEVICE_ID_I2C_ADAPTER = 34, /* I2C adapter */
VIRTIO_DEVICE_ID_WATCHDOG = 35, /* Watchdog */
VIRTIO_DEVICE_ID_CAN = 36, /* CAN device */
VIRTIO_DEVICE_ID_DMABUF = 37, /* Virtio dmabuf */
VIRTIO_DEVICE_ID_PARAM_SERV = 38, /* Parameter Server */
VIRTIO_DEVICE_ID_AUDIO_POLICY = 39, /* Audio policy device */
VIRTIO_DEVICE_ID_BT = 40, /* Bluetooth device */
VIRTIO_DEVICE_ID_GPIO = 41, /* GPIO device */
VIRTIO_DEVICE_ID_RDMA = 42, /* RDMA device */
VIRTIO_DEVICE_TYPE_SIZE
};
struct virtio_device
{
rt_uint32_t irq;
struct virtq *queues;
rt_size_t queues_num;
union
{
rt_ubase_t *mmio_base;
struct virtio_mmio_config *mmio_config;
};
#ifdef RT_USING_SMP
struct rt_spinlock spinlock;
#endif
void *priv;
};
typedef rt_err_t (*virtio_device_init_handler)(rt_ubase_t *mmio_base, rt_uint32_t irq);
void virtio_reset_device(struct virtio_device *dev);
void virtio_status_acknowledge_driver(struct virtio_device *dev);
void virtio_status_driver_ok(struct virtio_device *dev);
void virtio_interrupt_ack(struct virtio_device *dev);
rt_bool_t virtio_has_feature(struct virtio_device *dev, rt_uint32_t feature_bit);
rt_err_t virtio_queues_alloc(struct virtio_device *dev, rt_size_t queues_num);
void virtio_queues_free(struct virtio_device *dev);
rt_err_t virtio_queue_init(struct virtio_device *dev, rt_uint32_t queue_index, rt_size_t ring_size);
void virtio_queue_destroy(struct virtio_device *dev, rt_uint32_t queue_index);
void virtio_queue_notify(struct virtio_device *dev, rt_uint32_t queue_index);
void virtio_submit_chain(struct virtio_device *dev, rt_uint32_t queue_index, rt_uint16_t desc_index);
rt_uint16_t virtio_alloc_desc(struct virtio_device *dev, rt_uint32_t queue_index);
void virtio_free_desc(struct virtio_device *dev, rt_uint32_t queue_index, rt_uint16_t desc_index);
rt_err_t virtio_alloc_desc_chain(struct virtio_device *dev, rt_uint32_t queue_index, rt_size_t count,
rt_uint16_t *indexs);
void virtio_free_desc_chain(struct virtio_device *dev, rt_uint32_t queue_index, rt_uint16_t desc_index);
void virtio_fill_desc(struct virtio_device *dev, rt_uint32_t queue_index, rt_uint16_t desc_index,
rt_uint64_t addr, rt_uint32_t len, rt_uint16_t flags, rt_uint16_t next);
#endif /* __VIRTIO_H__ */
|
