225 lines
8.4 KiB
C
225 lines
8.4 KiB
C
/*
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*********************************************************************************************************
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* EXAMPLE CODE
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*
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* This file is provided as an example on how to use Micrium products.
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*
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* Please feel free to use any application code labeled as 'EXAMPLE CODE' in
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* your application products. Example code may be used as is, in whole or in
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* part, or may be used as a reference only. This file can be modified as
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* required to meet the end-product requirements.
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*
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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*
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* USB HOST HID MOUSE TEST APPLICATION
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*
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* TEMPLATE
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*
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* Filename : app_usbh_mouse.c
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* Version : V3.42.01
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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* INCLUDE FILES
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*********************************************************************************************************
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*/
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#define APP_USBH_MOUSE_MODULE
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#include "app_usbh_mouse.h"
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/*
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*********************************************************************************************************
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* LOCAL DEFINES
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*********************************************************************************************************
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*/
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#define MOUSE_BUTTON_1 0x01u
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#define MOUSE_BUTTON_2 0x02u
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#define MOUSE_BUTTON_3 0x04u
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/*
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*********************************************************************************************************
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* LOCAL CONSTANTS
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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* LOCAL DATA TYPES
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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* LOCAL TABLES
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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* LOCAL GLOBAL VARIABLES
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*********************************************************************************************************
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*/
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static CPU_INT08U App_USBH_MouseStatePrev = 0u;
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static CPU_INT32S App_USBH_MousePosX = 0u;
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static CPU_INT32S App_USBH_MousePosY = 0u;
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/*
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*********************************************************************************************************
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* LOCAL FUNCTION PROTOTYPES
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*********************************************************************************************************
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*/
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static void App_USBH_MouseDisplayData (CPU_INT08S *p_buf);
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/*
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*********************************************************************************************************
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* LOCAL CONFIGURATION ERRORS
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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*********************************************************************************************************
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* GLOBAL FUNCTIONS
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*********************************************************************************************************
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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* App_USBH_MouseCallBack()
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*
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* Description : Callback function for mouse events.
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*
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* Argument(s) : p_hid_dev Pointer to the HID class device.
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*
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* p_buf Pointer to the data sent by the keyboard.
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*
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* buf_len Buffer length.
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*
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* err Status of the callback.
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*
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* Return(s) : None.
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*
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* Note(s) : None.
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*********************************************************************************************************
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*/
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void App_USBH_MouseCallBack (USBH_HID_DEV *p_hid_dev,
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void *p_buf,
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CPU_INT08U buf_len,
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USBH_ERR err)
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{
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(void)p_hid_dev;
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if ((err == USBH_ERR_NONE) &&
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(buf_len >= 3u)) {
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App_USBH_MouseDisplayData(p_buf);
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}
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}
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/*
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*********************************************************************************************************
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*********************************************************************************************************
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* LOCAL FUNCTIONS
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*********************************************************************************************************
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*********************************************************************************************************
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*/
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/*
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*********************************************************************************************************
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* App_USBH_MouseDisplayData()
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*
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* Description : Print buttons pressed & pointer location.
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*
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* Argument(s) : pbuf Buffer pointer.
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*
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* Return(s) : None.
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*
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* Note(s) : This function parses the report buffer of a simple/basic mouse. It might require to be
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* modified when used with a complex mouse
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*********************************************************************************************************
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*/
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static void App_USBH_MouseDisplayData (CPU_INT08S *p_buf)
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{
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CPU_INT08U state;
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CPU_BOOLEAN pressed_prev;
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CPU_BOOLEAN pressed;
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state = (CPU_INT08U)p_buf[0];
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pressed = (state & MOUSE_BUTTON_1) == MOUSE_BUTTON_1 ? DEF_TRUE : DEF_FALSE;
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pressed_prev = (App_USBH_MouseStatePrev & MOUSE_BUTTON_1) == MOUSE_BUTTON_1 ? DEF_TRUE : DEF_FALSE;
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if ((pressed == DEF_TRUE) &&
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(pressed_prev == DEF_FALSE)) {
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APP_TRACE_INFO(("Left button pressed\r\n"));
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}
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if ((pressed == DEF_FALSE) &&
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(pressed_prev == DEF_TRUE)) {
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APP_TRACE_INFO(("Left button released\r\n"));
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}
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pressed = (state & MOUSE_BUTTON_3) == MOUSE_BUTTON_3 ? DEF_TRUE : DEF_FALSE;
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pressed_prev = (App_USBH_MouseStatePrev & MOUSE_BUTTON_3) == MOUSE_BUTTON_3 ? DEF_TRUE : DEF_FALSE;
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if ((pressed == DEF_TRUE) &&
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(pressed_prev == DEF_FALSE)) {
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APP_TRACE_INFO(("Middle button pressed\r\n"));
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}
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if ((pressed == DEF_FALSE) &&
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(pressed_prev == DEF_TRUE)) {
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APP_TRACE_INFO(("Middle button released\r\n"));
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}
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pressed = (state & MOUSE_BUTTON_2) == MOUSE_BUTTON_2 ? DEF_TRUE : DEF_FALSE;
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pressed_prev = (App_USBH_MouseStatePrev & MOUSE_BUTTON_2) == MOUSE_BUTTON_2 ? DEF_TRUE : DEF_FALSE;
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if ((pressed == DEF_TRUE) &&
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(pressed_prev == DEF_FALSE)) {
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APP_TRACE_INFO(("Right button pressed\r\n"));
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}
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if ((pressed == DEF_FALSE) &&
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(pressed_prev == DEF_TRUE)) {
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APP_TRACE_INFO(("Right button released\r\n"));
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}
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App_USBH_MouseStatePrev = state;
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if ((p_buf[1u] != 0u) ||
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(p_buf[2u] != 0u)) {
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App_USBH_MousePosX += p_buf[1u];
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App_USBH_MousePosY += p_buf[2u];
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APP_TRACE_INFO(("Pointer at (x, y) = (%d, %d)\r\n",
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App_USBH_MousePosX,
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App_USBH_MousePosY));
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}
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}
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/*
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*********************************************************************************************************
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* END
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*********************************************************************************************************
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*/
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