1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** USBX Component */
17 /** */
18 /** EHCI Controller Driver */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23
24 /* Include necessary system files. */
25
26 #define UX_SOURCE_CODE
27
28 #include "ux_api.h"
29 #include "ux_hcd_ehci.h"
30 #include "ux_host_stack.h"
31
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _ux_hcd_ehci_transfer_request_process PORTABLE C */
38 /* 6.1.10 */
39 /* AUTHOR */
40 /* */
41 /* Chaoqiong Xiao, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function process the transfer that was completed either */
46 /* successfully because of a partial transmission or because of an */
47 /* error. The transfer descriptor tells us what to do with it, either */
48 /* put a semaphore to the caller or invoke a completion routine. If a */
49 /* completion routine is specified, the routine is called and no */
50 /* semaphore is put. */
51 /* */
52 /* INPUT */
53 /* */
54 /* transfer_request Pointer to transfer request */
55 /* */
56 /* OUTPUT */
57 /* */
58 /* None */
59 /* */
60 /* CALLS */
61 /* */
62 /* (ux_transfer_request_completion_function) Transfer complete function*/
63 /* _ux_host_semaphore_put Put producer semaphore */
64 /* */
65 /* CALLED BY */
66 /* */
67 /* EHCI Controller Driver */
68 /* */
69 /* RELEASE HISTORY */
70 /* */
71 /* DATE NAME DESCRIPTION */
72 /* */
73 /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
74 /* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
75 /* resulting in version 6.1 */
76 /* 01-31-2022 Chaoqiong Xiao Modified comment(s), */
77 /* refined macros names, */
78 /* resulting in version 6.1.10 */
79 /* */
80 /**************************************************************************/
_ux_hcd_ehci_transfer_request_process(UX_TRANSFER * transfer_request)81 VOID _ux_hcd_ehci_transfer_request_process(UX_TRANSFER *transfer_request)
82 {
83
84 /* Check if there is a function for the transfer completion. */
85 if (transfer_request -> ux_transfer_request_completion_function != UX_NULL)
86
87 /* Yes, so we call it. */
88 transfer_request -> ux_transfer_request_completion_function(transfer_request);
89 else
90
91 /* There is a semaphore so send the signal to the class. */
92 _ux_host_semaphore_put(&transfer_request -> ux_transfer_request_semaphore);
93
94 /* Return to caller. */
95 return;
96 }
97
98
