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
|
/*
FreeRTOS.org V4.2.1 - Copyright (C) 2003-2007 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS.org 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 for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS.org; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
Also see http://www.SafeRTOS.com for an IEC 61508 compliant version along
with commercial development and support options.
***************************************************************************
*/
#ifndef USB_CDC_H
#define USB_CDC_H
#include "usb.h"
#define USB_CDC_QUEUE_SIZE 1024
/* Structure used to take a snapshot of the USB status from within the ISR. */
typedef struct X_ISR_STATUS
{
unsigned portLONG ulISR;
unsigned portLONG ulCSR0;
unsigned portCHAR ucFifoData[8];
} xISRStatus;
/* Structure used to hold the received requests. */
typedef struct
{
unsigned portCHAR ucReqType;
unsigned portCHAR ucRequest;
unsigned portSHORT usValue;
unsigned portSHORT usIndex;
unsigned portSHORT usLength;
} xUSB_REQUEST;
typedef enum
{
eNOTHING,
eJUST_RESET,
eJUST_GOT_CONFIG,
eJUST_GOT_ADDRESS,
eSENDING_EVEN_DESCRIPTOR,
eREADY_TO_SEND
} eDRIVER_STATE;
/* Structure used to control the data being sent to the host. */
typedef struct
{
unsigned portCHAR ucBuffer[usbMAX_CONTROL_MESSAGE_SIZE];
unsigned portLONG ulNextCharIndex;
unsigned portLONG ulTotalDataLength;
} xCONTROL_MESSAGE;
/*-----------------------------------------------------------*/
void vUSBCDCTask (void *pvParameters);
/* Send cByte down the USB port. Characters are simply buffered and not
sent unless the port is connected. */
void vUSBSendByte (portCHAR cByte);
portLONG vUSBRecvByte (portCHAR *cByte,portLONG size, portTickType xTicksToWait);
#endif
|
