blob: d4f3c612f5c620d2ff9871ace1c624f31e735fc1 (
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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/***************************************************************************
* 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 */
/** */
/** Slave Simulator Controller Driver */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_dcd_sim_slave.h"
#if defined(UX_DEVICE_STANDALONE)
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_dcd_sim_slave_transfer_run PORTABLE C */
/* 6.1.10 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function will initiate a transfer to a specific endpoint. */
/* If the endpoint is IN, the endpoint register will be set to accept */
/* the request. */
/* */
/* If the endpoint is IN, the endpoint FIFO will be filled with the */
/* buffer and the endpoint register set. */
/* */
/* It's for standalone mode. */
/* */
/* INPUT */
/* */
/* dcd_sim_slave Pointer to device controller */
/* transfer_request Pointer to transfer request */
/* */
/* OUTPUT */
/* */
/* State machine Status to check */
/* UX_STATE_NEXT Transfer done, to next state */
/* UX_STATE_EXIT Abnormal, to reset state */
/* (others) Keep running, waiting */
/* */
/* CALLS */
/* */
/* _ux_utility_semaphore_get Get semaphore */
/* _ux_dcd_sim_slave_transfer_abort Abort transfer */
/* */
/* CALLED BY */
/* */
/* Slave Simulator Controller Driver */
/* */
/**************************************************************************/
UINT _ux_dcd_sim_slave_transfer_run(UX_DCD_SIM_SLAVE *dcd_sim_slave, UX_SLAVE_TRANSFER *transfer_request)
{
UX_INTERRUPT_SAVE_AREA
UX_SLAVE_ENDPOINT *endpoint;
UX_DCD_SIM_SLAVE_ED *ed;
ULONG ed_status;
UX_PARAMETER_NOT_USED(dcd_sim_slave);
/* Get the pointer to the logical endpoint from the transfer request. */
endpoint = transfer_request -> ux_slave_transfer_request_endpoint;
/* Get the slave endpoint. */
ed = (UX_DCD_SIM_SLAVE_ED *) endpoint -> ux_slave_endpoint_ed;
UX_DISABLE
/* Get current status. */
ed_status = ed -> ux_sim_slave_ed_status;
/* ED freed, must disconnected. */
if (ed_status == UX_DCD_SIM_SLAVE_ED_STATUS_UNUSED)
{
transfer_request -> ux_slave_transfer_request_status = UX_TRANSFER_BUS_RESET;
UX_RESTORE
return(UX_STATE_EXIT);
}
/* For control endpoint, always go to next state. */
if(ed -> ux_sim_slave_ed_index == 0)
{
UX_RESTORE
return(UX_STATE_NEXT);
}
/* ED stalled. */
if (ed_status & UX_DCD_SIM_SLAVE_ED_STATUS_STALLED)
{
ed -> ux_sim_slave_ed_status = UX_DCD_SIM_SLAVE_ED_STATUS_USED;
transfer_request -> ux_slave_transfer_request_status = UX_TRANSFER_STALLED;
UX_RESTORE
return(UX_STATE_NEXT);
}
/* Transfer started. */
if (ed_status & UX_DCD_SIM_SLAVE_ED_STATUS_TRANSFER)
{
if (ed_status & UX_DCD_SIM_SLAVE_ED_STATUS_DONE)
{
ed -> ux_sim_slave_ed_status = UX_DCD_SIM_SLAVE_ED_STATUS_USED;
UX_RESTORE
return(UX_STATE_NEXT);
}
UX_RESTORE
return(UX_STATE_WAIT);
}
/* Start transfer. */
ed->ux_sim_slave_ed_status |= UX_DCD_SIM_SLAVE_ED_STATUS_TRANSFER;
UX_RESTORE
return(UX_STATE_WAIT);
}
#endif
|
