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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#ifndef _TUSB_DCD_H_
#define _TUSB_DCD_H_
#include "common/tusb_common.h"
#include "osal/osal.h"
#include "common/tusb_fifo.h"
#include "dcd_attr.h"
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// Configuration
//--------------------------------------------------------------------+
#ifndef CFG_TUD_ENDPPOINT_MAX
#define CFG_TUD_ENDPPOINT_MAX DCD_ATTR_ENDPOINT_MAX
#endif
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF PROTYPES
//--------------------------------------------------------------------+
typedef enum
{
DCD_EVENT_INVALID = 0,
DCD_EVENT_BUS_RESET,
DCD_EVENT_UNPLUGGED,
DCD_EVENT_SOF,
DCD_EVENT_SUSPEND, // TODO LPM Sleep L1 support
DCD_EVENT_RESUME,
DCD_EVENT_SETUP_RECEIVED,
DCD_EVENT_XFER_COMPLETE,
// Not an DCD event, just a convenient way to defer ISR function
USBD_EVENT_FUNC_CALL,
DCD_EVENT_COUNT
} dcd_eventid_t;
typedef struct TU_ATTR_ALIGNED(4)
{
uint8_t rhport;
uint8_t event_id;
union
{
// BUS RESET
struct {
tusb_speed_t speed;
} bus_reset;
// SETUP_RECEIVED
tusb_control_request_t setup_received;
// XFER_COMPLETE
struct {
uint8_t ep_addr;
uint8_t result;
uint32_t len;
}xfer_complete;
// FUNC_CALL
struct {
void (*func) (void*);
void* param;
}func_call;
};
} dcd_event_t;
//TU_VERIFY_STATIC(sizeof(dcd_event_t) <= 12, "size is not correct");
//--------------------------------------------------------------------+
// Controller API
//--------------------------------------------------------------------+
// Initialize controller to device mode
void dcd_init (uint8_t rhport);
// Interrupt Handler
void dcd_int_handler(uint8_t rhport);
// Enable device interrupt
void dcd_int_enable (uint8_t rhport);
// Disable device interrupt
void dcd_int_disable(uint8_t rhport);
// Receive Set Address request, mcu port must also include status IN response
void dcd_set_address(uint8_t rhport, uint8_t dev_addr);
// Wake up host
void dcd_remote_wakeup(uint8_t rhport);
// Connect by enabling internal pull-up resistor on D+/D-
void dcd_connect(uint8_t rhport) TU_ATTR_WEAK;
// Disconnect by disabling internal pull-up resistor on D+/D-
void dcd_disconnect(uint8_t rhport) TU_ATTR_WEAK;
//--------------------------------------------------------------------+
// Endpoint API
//--------------------------------------------------------------------+
// Invoked when a control transfer's status stage is complete.
// May help DCD to prepare for next control transfer, this API is optional.
void dcd_edpt0_status_complete(uint8_t rhport, tusb_control_request_t const * request) TU_ATTR_WEAK;
// Configure endpoint's registers according to descriptor
bool dcd_edpt_open (uint8_t rhport, tusb_desc_endpoint_t const * desc_ep);
// Close an endpoint.
// Since it is weak, caller must TU_ASSERT this function's existence before calling it.
void dcd_edpt_close (uint8_t rhport, uint8_t ep_addr) TU_ATTR_WEAK;
// Submit a transfer, When complete dcd_event_xfer_complete() is invoked to notify the stack
bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes);
// Submit an transfer using fifo, When complete dcd_event_xfer_complete() is invoked to notify the stack
// This API is optional, may be useful for register-based for transferring data.
bool dcd_edpt_xfer_fifo (uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16_t total_bytes) TU_ATTR_WEAK;
// Stall endpoint
void dcd_edpt_stall (uint8_t rhport, uint8_t ep_addr);
// clear stall, data toggle is also reset to DATA0
// This API never calls with control endpoints, since it is auto cleared when receiving setup packet
void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr);
//--------------------------------------------------------------------+
// Event API (implemented by stack)
//--------------------------------------------------------------------+
// Called by DCD to notify device stack
extern void dcd_event_handler(dcd_event_t const * event, bool in_isr);
// helper to send bus signal event
extern void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr);
// helper to send bus reset event
extern void dcd_event_bus_reset (uint8_t rhport, tusb_speed_t speed, bool in_isr);
// helper to send setup received
extern void dcd_event_setup_received(uint8_t rhport, uint8_t const * setup, bool in_isr);
// helper to send transfer complete event
extern void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr);
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_DCD_H_ */
|
