blob: 5b41a1e1c82f55961de4c161f4bb20e024751b31 (
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
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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/***************************************************************************
* 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 */
/** */
/** Device Printer Class */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_device_class_printer.h"
#include "ux_device_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_printer_initialize PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function initializes the USB Printer device. */
/* */
/* INPUT */
/* */
/* command Pointer to printer command */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_utility_memory_allocate Allocate memory */
/* _ux_utility_memory_free Free memory */
/* _ux_utility_mutex_create Create mutex */
/* _ux_device_mutex_delete Delete mutex */
/* */
/* CALLED BY */
/* */
/* Device Stack */
/* */
/**************************************************************************/
UINT _ux_device_class_printer_initialize(UX_SLAVE_CLASS_COMMAND *command)
{
UX_DEVICE_CLASS_PRINTER *printer;
UX_DEVICE_CLASS_PRINTER_PARAMETER *printer_parameter;
UX_SLAVE_CLASS *printer_class;
#if !defined(UX_DEVICE_STANDALONE)
UINT status;
#endif
/* Get the class container. */
printer_class = command -> ux_slave_class_command_class_ptr;
/* Create an instance of the device printer class. */
printer = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, sizeof(UX_DEVICE_CLASS_PRINTER));
/* Check for successful allocation. */
if (printer == UX_NULL)
return(UX_MEMORY_INSUFFICIENT);
/* Save the address of the Printer instance inside the Printer container. */
printer_class -> ux_slave_class_instance = (VOID *) printer;
/* Get the pointer to the application parameters for the printer class. */
printer_parameter = command -> ux_slave_class_command_parameter;
/* Store the start and stop signals if needed by the application. */
printer -> ux_device_class_printer_parameter.ux_device_class_printer_device_id = printer_parameter -> ux_device_class_printer_device_id;
printer -> ux_device_class_printer_parameter.ux_device_class_printer_instance_activate = printer_parameter -> ux_device_class_printer_instance_activate;
printer -> ux_device_class_printer_parameter.ux_device_class_printer_instance_deactivate = printer_parameter -> ux_device_class_printer_instance_deactivate;
printer -> ux_device_class_printer_parameter.ux_device_class_printer_soft_reset = printer_parameter -> ux_device_class_printer_soft_reset;
#if defined(UX_DEVICE_CLASS_PRINTER_OWN_ENDPOINT_BUFFER)
/* Allocate endpoint buffer. */
UX_ASSERT(!UX_DEVICE_CLASS_PRINTER_ENDPOINT_BUFFER_SIZE_CALC_OVERFLOW);
printer -> ux_device_class_printer_endpoint_buffer = _ux_utility_memory_allocate(UX_NO_ALIGN,
UX_CACHE_SAFE_MEMORY, UX_DEVICE_CLASS_PRINTER_ENDPOINT_BUFFER_SIZE);
if (printer -> ux_device_class_printer_endpoint_buffer == UX_NULL)
{
_ux_utility_memory_free(printer);
return(UX_MEMORY_INSUFFICIENT);
}
#endif
#if !defined(UX_DEVICE_STANDALONE)
/* Create the Mutex for each endpoint as multiple threads cannot access each pipe at the same time. */
status = _ux_utility_mutex_create(&printer -> ux_device_class_printer_endpoint_in_mutex, "ux_device_class_printer_in_mutex");
/* Check Mutex creation error. */
if(status != UX_SUCCESS)
{
/* Free the resources. */
#if defined(UX_DEVICE_CLASS_PRINTER_OWN_ENDPOINT_BUFFER)
_ux_utility_memory_free(printer -> ux_device_class_printer_endpoint_buffer);
#endif
_ux_utility_memory_free(printer);
/* Return fatal error. */
return(UX_MUTEX_ERROR);
}
/* Out Mutex. */
status = _ux_utility_mutex_create(&printer -> ux_device_class_printer_endpoint_out_mutex, "ux_device_class_printer_out_mutex");
/* Check Mutex creation error. */
if(status != UX_SUCCESS)
{
/* Delete the endpoint IN mutex. */
_ux_device_mutex_delete(&printer -> ux_device_class_printer_endpoint_in_mutex);
/* Free the resources. */
#if defined(UX_DEVICE_CLASS_PRINTER_OWN_ENDPOINT_BUFFER)
_ux_utility_memory_free(printer -> ux_device_class_printer_endpoint_buffer);
#endif
_ux_utility_memory_free(printer);
/* Return fatal error. */
return(UX_MUTEX_ERROR);
}
#else
printer -> ux_device_class_printer_write_state = UX_STATE_RESET;
printer -> ux_device_class_printer_read_state = UX_STATE_RESET;
#endif
/* Reset port status. */
printer -> ux_device_class_printer_port_status = 0;
/* Return completion status. */
return(UX_SUCCESS);
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _uxe_device_class_printer_initialize PORTABLE C */
/* 6.2.1 */
/* AUTHOR */
/* */
/* Yajun Xia, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks errors in printer initialization function call.*/
/* */
/* INPUT */
/* */
/* command Pointer to printer command */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_device_class_printer_initialize Initialize printer instance */
/* */
/* CALLED BY */
/* */
/* Device Stack */
/* */
/**************************************************************************/
UINT _uxe_device_class_printer_initialize(UX_SLAVE_CLASS_COMMAND *command)
{
UX_DEVICE_CLASS_PRINTER_PARAMETER *printer_parameter;
ULONG length;
/* Get the pointer to the application parameters for the printer class. */
printer_parameter = command -> ux_slave_class_command_parameter;
/* Sanity checks. */
/* Length of data (first two bytes in big endian). */
length = _ux_utility_short_get_big_endian(printer_parameter -> ux_device_class_printer_device_id);
if (length > UX_SLAVE_REQUEST_CONTROL_MAX_LENGTH)
{
return(UX_INVALID_PARAMETER);
}
return (_ux_device_class_printer_initialize(command));
}
|
