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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** USBX Component */ |
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/** */ |
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/** HID Mouse Client Class */ |
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/** */ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/* Include necessary system files. */ |
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#define UX_SOURCE_CODE |
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#include "ux_api.h" |
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#include "ux_host_class_hid.h" |
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#include "ux_host_class_hid_mouse.h" |
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#include "ux_host_stack.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _ux_host_class_hid_mouse_position_get PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Chaoqiong Xiao, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function reads the mouse position and reports it to the user. */ |
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/* We have the X and Y coordinates passed by the application. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* mouse_instance Pointer to mouse instance */ |
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/* mouse_x_position Current Mouse X Position */ |
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/* mouse_y_position Current Mouse Y Position */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* Completion Status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* HID Mouse Class */ |
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/* */ |
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/* RELEASE HISTORY */ |
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/* */ |
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/* DATE NAME DESCRIPTION */ |
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/* */ |
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/* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */ |
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/* 09-30-2020 Chaoqiong Xiao Modified comment(s), */ |
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/* resulting in version 6.1 */ |
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/* */ |
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/**************************************************************************/ |
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UINT _ux_host_class_hid_mouse_position_get(UX_HOST_CLASS_HID_MOUSE *mouse_instance, |
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SLONG *mouse_x_position, |
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SLONG *mouse_y_position) |
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{ |
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UX_HOST_CLASS_HID *hid; |
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/* Get the HID class associated with the HID client. */ |
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hid = mouse_instance -> ux_host_class_hid_mouse_hid; |
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/* Ensure the instance is valid. */ |
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✓✓ |
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if (_ux_host_stack_class_instance_verify(_ux_system_host_class_hid_name, (VOID *) hid) != UX_SUCCESS) |
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{ |
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/* Error trap. */ |
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_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_HOST_CLASS_INSTANCE_UNKNOWN); |
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/* If trace is enabled, insert this event into the trace buffer. */ |
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UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_HOST_CLASS_INSTANCE_UNKNOWN, hid, 0, 0, UX_TRACE_ERRORS, 0, 0) |
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return(UX_HOST_CLASS_INSTANCE_UNKNOWN); |
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} |
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/* Report the mouse X position. */ |
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*mouse_x_position = mouse_instance -> ux_host_class_hid_mouse_x_position; |
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/* Report the mouse Y position. */ |
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*mouse_y_position = mouse_instance -> ux_host_class_hid_mouse_y_position; |
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/* The status will tell the application there is something valid in the usage/value. */ |
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return(UX_SUCCESS); |
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} |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _uxe_host_class_hid_mouse_position_get PORTABLE C */ |
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/* 6.3.0 */ |
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/* AUTHOR */ |
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/* */ |
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/* Chaoqiong Xiao, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function checks errors in HID mouse position get function call.*/ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* mouse_instance Pointer to mouse instance */ |
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/* mouse_x_position Current Mouse X Position */ |
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/* mouse_y_position Current Mouse Y Position */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* Status */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* _ux_host_class_hid_mouse_position_get Get mouse position */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* Application */ |
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/* */ |
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/* RELEASE HISTORY */ |
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/* */ |
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/* DATE NAME DESCRIPTION */ |
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/* */ |
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/* 10-31-2023 Chaoqiong Xiao Initial Version 6.3.0 */ |
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/* */ |
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/**************************************************************************/ |
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UINT _uxe_host_class_hid_mouse_position_get(UX_HOST_CLASS_HID_MOUSE *mouse_instance, |
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SLONG *mouse_x_position, |
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SLONG *mouse_y_position) |
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{ |
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/* Sanity checks. */ |
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if ((mouse_instance == UX_NULL) || |
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(mouse_x_position == UX_NULL) || (mouse_y_position == UX_NULL) || |
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(mouse_x_position == mouse_y_position)) |
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{ |
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return(UX_INVALID_PARAMETER); |
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} |
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/* Invoke position get function. */ |
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return(_ux_host_class_hid_mouse_position_get(mouse_instance, |
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mouse_x_position, mouse_y_position)); |
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} |