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/**
******************************************************************************
* @file usbh_hid_mouse.c
* @author MCD Application Team
* @brief This file is the application layer for USB Host HID Mouse Handling.
******************************************************************************
* @attention
*
* Copyright (c) 2015 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* BSPDependencies
- "stm32xxxxx_{eval}{discovery}{nucleo_144}.c"
- "stm32xxxxx_{eval}{discovery}_io.c"
- "stm32xxxxx_{eval}{discovery}{adafruit}_lcd.c"
- "stm32xxxxx_{eval}{discovery}_sdram.c"
EndBSPDependencies */
/* Includes ------------------------------------------------------------------*/
#include "usbh_hid_mouse.h"
#include "usbh_hid_parser.h"
/** @addtogroup USBH_LIB
* @{
*/
/** @addtogroup USBH_CLASS
* @{
*/
/** @addtogroup USBH_HID_CLASS
* @{
*/
/** @defgroup USBH_HID_MOUSE
* @brief This file includes HID Layer Handlers for USB Host HID class.
* @{
*/
/** @defgroup USBH_HID_MOUSE_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBH_HID_MOUSE_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBH_HID_MOUSE_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBH_HID_MOUSE_Private_FunctionPrototypes
* @{
*/
static USBH_StatusTypeDef USBH_HID_MouseDecode(USBH_HandleTypeDef *phost);
/**
* @}
*/
/** @defgroup USBH_HID_MOUSE_Private_Variables
* @{
*/
HID_MOUSE_Info_TypeDef mouse_info;
uint8_t mouse_report_data[USBH_HID_MOUSE_REPORT_SIZE];
uint8_t mouse_rx_report_buf[USBH_HID_MOUSE_REPORT_SIZE];
/* Structures defining how to access items in a HID mouse report */
/* Access button 1 state. */
static const HID_Report_ItemTypedef prop_b1 =
{
mouse_report_data, /*data*/
1, /*size*/
0, /*shift*/
0, /*count (only for array items)*/
0, /*signed?*/
0, /*min value read can return*/
1, /*max value read can return*/
0, /*min value device can report*/
1, /*max value device can report*/
1 /*resolution*/
};
/* Access button 2 state. */
static const HID_Report_ItemTypedef prop_b2 =
{
mouse_report_data, /*data*/
1, /*size*/
1, /*shift*/
0, /*count (only for array items)*/
0, /*signed?*/
0, /*min value read can return*/
1, /*max value read can return*/
0, /*min value device can report*/
1, /*max value device can report*/
1 /*resolution*/
};
/* Access button 3 state. */
static const HID_Report_ItemTypedef prop_b3 =
{
mouse_report_data, /*data*/
1, /*size*/
2, /*shift*/
0, /*count (only for array items)*/
0, /*signed?*/
0, /*min value read can return*/
1, /*max value read can return*/
0, /*min vale device can report*/
1, /*max value device can report*/
1 /*resolution*/
};
/* Access x coordinate change. */
static const HID_Report_ItemTypedef prop_x =
{
mouse_report_data + 1U, /*data*/
8, /*size*/
0, /*shift*/
0, /*count (only for array items)*/
1, /*signed?*/
0, /*min value read can return*/
0xFFFF,/*max value read can return*/
0, /*min vale device can report*/
0xFFFF,/*max value device can report*/
1 /*resolution*/
};
/* Access y coordinate change. */
static const HID_Report_ItemTypedef prop_y =
{
mouse_report_data + 2U, /*data*/
8, /*size*/
0, /*shift*/
0, /*count (only for array items)*/
1, /*signed?*/
0, /*min value read can return*/
0xFFFF,/*max value read can return*/
0, /*min vale device can report*/
0xFFFF,/*max value device can report*/
1 /*resolution*/
};
/**
* @}
*/
/** @defgroup USBH_HID_MOUSE_Private_Functions
* @{
*/
/**
* @brief USBH_HID_MouseInit
* The function init the HID mouse.
* @param phost: Host handle
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_HID_MouseInit(USBH_HandleTypeDef *phost)
{
uint32_t i;
HID_HandleTypeDef *HID_Handle = (HID_HandleTypeDef *) phost->pActiveClass->pData;
mouse_info.x = 0U;
mouse_info.y = 0U;
mouse_info.buttons[0] = 0U;
mouse_info.buttons[1] = 0U;
mouse_info.buttons[2] = 0U;
for (i = 0U; i < sizeof(mouse_report_data); i++)
{
mouse_report_data[i] = 0U;
mouse_rx_report_buf[i] = 0U;
}
if (HID_Handle->length > sizeof(mouse_report_data))
{
HID_Handle->length = (uint16_t)sizeof(mouse_report_data);
}
HID_Handle->pData = mouse_rx_report_buf;
if ((HID_QUEUE_SIZE * sizeof(mouse_report_data)) > sizeof(phost->device.Data))
{
return USBH_FAIL;
}
else
{
USBH_HID_FifoInit(&HID_Handle->fifo, phost->device.Data, (uint16_t)(HID_QUEUE_SIZE * sizeof(mouse_report_data)));
}
return USBH_OK;
}
/**
* @brief USBH_HID_GetMouseInfo
* The function return mouse information.
* @param phost: Host handle
* @retval mouse information
*/
HID_MOUSE_Info_TypeDef *USBH_HID_GetMouseInfo(USBH_HandleTypeDef *phost)
{
if (USBH_HID_MouseDecode(phost) == USBH_OK)
{
return &mouse_info;
}
else
{
return NULL;
}
}
/**
* @brief USBH_HID_MouseDecode
* The function decode mouse data.
* @param phost: Host handle
* @retval USBH Status
*/
static USBH_StatusTypeDef USBH_HID_MouseDecode(USBH_HandleTypeDef *phost)
{
HID_HandleTypeDef *HID_Handle = (HID_HandleTypeDef *) phost->pActiveClass->pData;
if ((HID_Handle->length == 0U) || (HID_Handle->fifo.buf == NULL))
{
return USBH_FAIL;
}
/*Fill report */
if (USBH_HID_FifoRead(&HID_Handle->fifo, &mouse_report_data, HID_Handle->length) == HID_Handle->length)
{
/*Decode report */
mouse_info.x = (uint8_t)HID_ReadItem((HID_Report_ItemTypedef *) &prop_x, 0U);
mouse_info.y = (uint8_t)HID_ReadItem((HID_Report_ItemTypedef *) &prop_y, 0U);
mouse_info.buttons[0] = (uint8_t)HID_ReadItem((HID_Report_ItemTypedef *) &prop_b1, 0U);
mouse_info.buttons[1] = (uint8_t)HID_ReadItem((HID_Report_ItemTypedef *) &prop_b2, 0U);
mouse_info.buttons[2] = (uint8_t)HID_ReadItem((HID_Report_ItemTypedef *) &prop_b3, 0U);
return USBH_OK;
}
return USBH_FAIL;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
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