diff options
| author | Yuxin Zhou <[email protected]> | 2022-04-20 05:09:21 +0000 |
|---|---|---|
| committer | Yuxin Zhou <[email protected]> | 2022-04-20 05:09:21 +0000 |
| commit | b693cdd782f1dc0742d6b1915cdc3d08f6d0959c (patch) | |
| tree | 03881d21bea4d34cb61fa5596bd6ba90f7b22639 /common/usbx_device_classes/src/ux_device_class_video_deactivate.c | |
| parent | 388e9732d1ae4b6f98906ae29deec2af88fee8b0 (diff) | |
Release 6.1.11v6.1.11_rel
Diffstat (limited to 'common/usbx_device_classes/src/ux_device_class_video_deactivate.c')
| -rw-r--r-- | common/usbx_device_classes/src/ux_device_class_video_deactivate.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/common/usbx_device_classes/src/ux_device_class_video_deactivate.c b/common/usbx_device_classes/src/ux_device_class_video_deactivate.c new file mode 100644 index 0000000..5556968 --- /dev/null +++ b/common/usbx_device_classes/src/ux_device_class_video_deactivate.c @@ -0,0 +1,116 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) Microsoft Corporation. All rights reserved. */ +/* */ +/* This software is licensed under the Microsoft Software License */ +/* Terms for Microsoft Azure RTOS. Full text of the license can be */ +/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ +/* and in the root directory of this software. */ +/* */ +/**************************************************************************/ + +/**************************************************************************/ +/**************************************************************************/ +/** */ +/** USBX Component */ +/** */ +/** Device Video Class */ +/** */ +/**************************************************************************/ +/**************************************************************************/ + +#define UX_SOURCE_CODE + + +/* Include necessary system files. */ + +#include "ux_api.h" +#include "ux_device_class_video.h" +#include "ux_device_stack.h" + + +/**************************************************************************/ +/* */ +/* FUNCTION RELEASE */ +/* */ +/* _ux_device_class_video_deactivate PORTABLE C */ +/* 6.1.11 */ +/* AUTHOR */ +/* */ +/* Chaoqiong Xiao, Microsoft Corporation */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function deactivate an instance of the video class. */ +/* */ +/* INPUT */ +/* */ +/* command Pointer to a class command */ +/* */ +/* OUTPUT */ +/* */ +/* Completion Status */ +/* */ +/* CALLS */ +/* */ +/* _ux_device_stack_transfer_all_request_abort */ +/* Abort all transfers */ +/* */ +/* CALLED BY */ +/* */ +/* Device Video Class */ +/* */ +/* RELEASE HISTORY */ +/* */ +/* DATE NAME DESCRIPTION */ +/* */ +/* 04-25-2022 Chaoqiong Xiao Initial Version 6.1.11 */ +/* */ +/**************************************************************************/ +UINT _ux_device_class_video_deactivate(UX_SLAVE_CLASS_COMMAND *command) +{ + +UX_DEVICE_CLASS_VIDEO *video; +UX_DEVICE_CLASS_VIDEO_STREAM *stream; +UX_SLAVE_ENDPOINT *endpoint; +UX_SLAVE_CLASS *class_inst; +UINT i; + + + /* Get the class container. */ + class_inst = command -> ux_slave_class_command_class_ptr; + + /* Get the class instance in the container. */ + video = (UX_DEVICE_CLASS_VIDEO *) class_inst -> ux_slave_class_instance; + + /* Stop pending streams. */ + stream = video -> ux_device_class_video_streams; + for (i = 0; i < video -> ux_device_class_video_streams_nb; i ++) + { + + /* Locate the endpoint. */ + endpoint = stream -> ux_device_class_video_stream_endpoint; + + /* Terminate the transactions pending on the endpoint. */ + if (endpoint) + _ux_device_stack_transfer_all_request_abort(endpoint, UX_TRANSFER_BUS_RESET); + + /* Free the stream. */ + stream -> ux_device_class_video_stream_endpoint = UX_NULL; + stream -> ux_device_class_video_stream_interface = UX_NULL; + + stream ++; + } + + /* Free the control. */ + video -> ux_device_class_video_interface = UX_NULL; + + /* If there is a deactivate function call it. */ + if (video -> ux_device_class_video_callbacks.ux_slave_class_video_instance_deactivate != UX_NULL) + + /* Invoke the application. */ + video -> ux_device_class_video_callbacks.ux_slave_class_video_instance_deactivate(video); + + /* Return completion status. */ + return(UX_SUCCESS); +} |