blob: a19c94bad20134becc5d67efac3c575690e0f805 (
plain)
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
|
/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2026-present Eclipse ThreadX contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** USBX Component */
/** */
/** PROLIFIC Class */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#define UX_SOURCE_CODE
#include "ux_api.h"
#include "ux_host_class_prolific.h"
#include "ux_host_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_host_class_prolific_transfer_request_completed PORTABLE C */
/* 6.1.9 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function is called by the completion thread when a transfer */
/* request has been completed either because the transfer is */
/* successful or there was an error. */
/* */
/* INPUT */
/* */
/* transfer_request Pointer to transfer request */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _ux_host_stack_transfer_request Transfer request */
/* */
/* CALLED BY */
/* */
/* USBX stack */
/* */
/**************************************************************************/
VOID _ux_host_class_prolific_transfer_request_completed(UX_TRANSFER *transfer_request)
{
UX_HOST_CLASS_PROLIFIC *prolific;
/* Get the class instance for this transfer request. */
prolific = (UX_HOST_CLASS_PROLIFIC *) transfer_request -> ux_transfer_request_class_instance;
/* Check the state of the transfer. If there is an error, we do not proceed with this notification. */
if (transfer_request -> ux_transfer_request_completion_code != UX_SUCCESS)
/* We do not proceed. */
return;
/* Check if the class is in shutdown. */
if (prolific -> ux_host_class_prolific_state == UX_HOST_CLASS_INSTANCE_SHUTDOWN)
/* We do not proceed. */
return;
/* Increment the notification count. */
prolific -> ux_host_class_prolific_notification_count++;
/* Look at what the the status is. First ensure the length of our interrupt pipe data is correct. */
if (transfer_request -> ux_transfer_request_actual_length ==
transfer_request -> ux_transfer_request_requested_length)
{
/* Check if device is present. */
if ((*(transfer_request -> ux_transfer_request_data_pointer + UX_HOST_CLASS_PROLIFIC_DEVICE_STATE_OFFSET) &
UX_HOST_CLASS_PROLIFIC_DEVICE_STATE_MASK) == 0)
/* Device is not present. */
prolific -> ux_host_class_prolific_device_state = UX_HOST_CLASS_PROLIFIC_DEVICE_NOT_PRESENT;
else
/* Device is present. */
prolific -> ux_host_class_prolific_device_state = UX_HOST_CLASS_PROLIFIC_DEVICE_PRESENT;
/* If there is a callback present, invoke it. */
if (prolific -> ux_host_class_prolific_device_status_change_callback != UX_NULL)
/* There is a callback, send the status change to the application. */
prolific -> ux_host_class_prolific_device_status_change_callback(prolific, prolific -> ux_host_class_prolific_device_state);
}
/* Reactivate the PROLIFIC interrupt pipe. */
_ux_host_stack_transfer_request(transfer_request);
/* Return to caller. */
return;
}
|
