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) 2025, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbotg_core.h"
#ifdef CONFIG_USB_OTG_ENABLE
#undef USB_DBG_TAG
#define USB_DBG_TAG "usbotg_core"
#include "usb_log.h"
#define CONFIG_USB_OTG_MAX_BUS CONFIG_USBHOST_MAX_BUS
struct usbotg_core_priv {
uint8_t busid;
uint32_t reg_base;
bool usbh_initialized;
bool usbd_initialized;
usbd_event_handler_t device_event_callback;
usbh_event_handler_t host_event_callback;
uint8_t request_mode;
usb_osal_sem_t change_sem;
usb_osal_thread_t change_thread;
} g_usbotg_core[CONFIG_USB_OTG_MAX_BUS];
static void usbotg_host_initialize(uint8_t busid)
{
if (g_usbotg_core[busid].usbh_initialized) {
return;
}
if (g_usbotg_core[busid].usbd_initialized) {
usbd_deinitialize(busid);
g_usbotg_core[busid].usbd_initialized = false;
}
USB_LOG_INFO("Switch to HOST mode\r\n");
g_usbotg_core[busid].usbh_initialized = true;
usbh_initialize(busid, g_usbotg_core[busid].reg_base, NULL);
}
static void usbotg_device_initialize(uint8_t busid)
{
if (g_usbotg_core[busid].usbd_initialized) {
return;
}
if (g_usbotg_core[busid].usbh_initialized) {
usbh_deinitialize(busid);
g_usbotg_core[busid].usbh_initialized = false;
}
USB_LOG_INFO("Switch to DEVICE mode\r\n");
g_usbotg_core[busid].usbd_initialized = true;
usbd_initialize(g_usbotg_core[busid].busid, g_usbotg_core[busid].reg_base, g_usbotg_core[busid].device_event_callback);
}
static void usbotg_rolechange_thread(void *argument)
{
uint8_t busid = (uint8_t)(uintptr_t)argument;
usb_otg_init(busid);
while (1) {
if (usb_osal_sem_take(g_usbotg_core[busid].change_sem, USB_OSAL_WAITING_FOREVER) == 0) {
if (g_usbotg_core[busid].request_mode == USBOTG_MODE_HOST) {
usbotg_host_initialize(busid);
} else if (g_usbotg_core[busid].request_mode == USBOTG_MODE_DEVICE) {
usbotg_device_initialize(busid);
}
}
}
}
int usbotg_initialize(uint8_t busid, uint32_t reg_base, usbd_event_handler_t device_event_callback, usbh_event_handler_t host_event_callback, uint8_t default_role)
{
char thread_name[32] = { 0 };
USB_ASSERT_MSG(busid < CONFIG_USB_OTG_MAX_BUS, "bus overflow\r\n");
g_usbotg_core[busid].busid = busid;
g_usbotg_core[busid].reg_base = reg_base;
g_usbotg_core[busid].device_event_callback = device_event_callback;
g_usbotg_core[busid].host_event_callback = host_event_callback;
g_usbotg_core[busid].change_sem = usb_osal_sem_create(0);
if (g_usbotg_core[busid].change_sem == NULL) {
USB_LOG_ERR("Failed to create change_sem\r\n");
while (1) {
}
}
snprintf(thread_name, 32, "usbotg%u", busid);
g_usbotg_core[busid].change_thread = usb_osal_thread_create(thread_name, 2048, 10, usbotg_rolechange_thread, (void *)(uintptr_t)busid);
if (g_usbotg_core[busid].change_thread == NULL) {
USB_LOG_ERR("Failed to create usbotg thread\r\n");
while (1) {
}
}
usbotg_trigger_role_change(busid, default_role);
return 0;
}
int usbotg_deinitialize(uint8_t busid)
{
USB_ASSERT_MSG(busid < CONFIG_USB_OTG_MAX_BUS, "bus overflow\r\n");
if (g_usbotg_core[busid].usbd_initialized) {
usbd_deinitialize(busid);
g_usbotg_core[busid].usbd_initialized = false;
}
if (g_usbotg_core[busid].usbh_initialized) {
usbh_deinitialize(busid);
g_usbotg_core[busid].usbh_initialized = false;
}
if (g_usbotg_core[busid].change_thread) {
usb_osal_thread_delete(g_usbotg_core[busid].change_thread);
}
if (g_usbotg_core[busid].change_sem) {
usb_otg_deinit(busid);
usb_osal_sem_delete(g_usbotg_core[busid].change_sem);
}
return 0;
}
void usbotg_trigger_role_change(uint8_t busid, uint8_t mode)
{
USB_ASSERT_MSG(busid < CONFIG_USB_OTG_MAX_BUS, "bus overflow\r\n");
g_usbotg_core[busid].request_mode = mode;
if (g_usbotg_core[busid].change_sem) {
usb_osal_sem_give(g_usbotg_core[busid].change_sem);
}
}
void USBOTG_IRQHandler(uint8_t busid)
{
USB_ASSERT_MSG(busid < CONFIG_USB_OTG_MAX_BUS, "bus overflow\r\n");
if (g_usbotg_core[busid].usbh_initialized) {
USBH_IRQHandler(busid);
} else if (g_usbotg_core[busid].usbd_initialized) {
USBD_IRQHandler(busid);
}
}
#endif /* CONFIG_USB_OTG_ENABLE */
|
