blob: 0481dd7c4e076aad4cbfe8f25f8535dc924563a0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file USB_Device/HID_Standalone/USB_Device/App/usb_device.c
* @author MCD Application Team
* @brief This file implements the USB Device
******************************************************************************
* @attention
*
* Copyright (c) 2019-2021 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.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "usb_device.h"
#include "usbd_core.h"
#include "usbd_desc.h"
#include "usbd_hid.h"
/* USER CODE BEGIN Includes */
#include "main.h"
/* USER CODE END Includes */
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
__IO uint32_t remotewakeupon = 0;
uint8_t HID_Buffer[4];
extern PCD_HandleTypeDef hpcd_USB_FS;
#define CURSOR_STEP 5
/* USER CODE END PV */
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
static void GetPointerData(uint8_t *pbuf);
extern void SystemClockConfig_Resume(void);
void USBD_Clock_Config(void);
/* USER CODE END PFP */
extern void Error_Handler(void);
/* USB Device Core handle declaration. */
USBD_HandleTypeDef hUsbDeviceFS;
extern USBD_DescriptorsTypeDef HID_Desc;
/*
* -- Insert your variables declaration here --
*/
/* USER CODE BEGIN 0 */
/**
* @brief USB Clock Configuration
* @retval None
*/
void USBD_Clock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_CRSInitTypeDef RCC_CRSInitStruct= {0};
/* Enable HSI48 */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct)!= HAL_OK)
{
Error_Handler();
}
/*Configure the clock recovery system (CRS)**********************************/
/*Enable CRS Clock*/
__HAL_RCC_CRS_CLK_ENABLE();
/* Default Synchro Signal division factor (not divided) */
RCC_CRSInitStruct.Prescaler = RCC_CRS_SYNC_DIV1;
/* Set the SYNCSRC[1:0] bits according to CRS_Source value */
RCC_CRSInitStruct.Source = RCC_CRS_SYNC_SOURCE_USB;
/* HSI48 is synchronized with USB SOF at 1KHz rate */
RCC_CRSInitStruct.ReloadValue = __HAL_RCC_CRS_RELOADVALUE_CALCULATE(48000000, 1000);
RCC_CRSInitStruct.ErrorLimitValue = RCC_CRS_ERRORLIMIT_DEFAULT;
/* Set the TRIM[5:0] to the default value */
RCC_CRSInitStruct.HSI48CalibrationValue = RCC_CRS_HSI48CALIBRATION_DEFAULT;
/* Start automatic synchronization */
HAL_RCCEx_CRSConfig (&RCC_CRSInitStruct);
}
/* USER CODE END 0 */
/*
* -- Insert your external function declaration here --
*/
/* USER CODE BEGIN 1 */
/**
* @brief Gets Pointer Data.
* @param pbuf: Pointer to report
* @retval None
*/
void GetPointerData(uint8_t * pbuf)
{
static int8_t cnt = 0;
int8_t x = 0, y = 0;
if (cnt++ > 0)
{
x = CURSOR_STEP;
}
else
{
x = -CURSOR_STEP;
}
pbuf[0] = 0;
pbuf[1] = x;
pbuf[2] = y;
pbuf[3] = 0;
}
/**
* @brief GPIO EXTI Callback function
* Handle remote-wakeup through key button
* @param GPIO_Pin
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if (GPIO_Pin == BUTTON_KEY1_PIN)
{
if ((((USBD_HandleTypeDef *) hpcd_USB_FS.pData)->dev_remote_wakeup == 1) &&
(((USBD_HandleTypeDef *) hpcd_USB_FS.pData)->dev_state ==
USBD_STATE_SUSPENDED))
{
if ((&hpcd_USB_FS)->Init.low_power_enable)
{
HAL_ResumeTick();
SystemClockConfig_Resume();
}
/* Activate Remote wakeup */
HAL_PCD_ActivateRemoteWakeup((&hpcd_USB_FS));
/* Remote wakeup delay */
HAL_Delay(10);
/* Disable Remote wakeup */
HAL_PCD_DeActivateRemoteWakeup((&hpcd_USB_FS));
/* change state to configured */
((USBD_HandleTypeDef *) hpcd_USB_FS.pData)->dev_state = USBD_STATE_CONFIGURED;
/* Change remote_wakeup feature to 0 */
((USBD_HandleTypeDef *) hpcd_USB_FS.pData)->dev_remote_wakeup = 0;
remotewakeupon = 1;
}
else if (((USBD_HandleTypeDef *) hpcd_USB_FS.pData)->dev_state ==
USBD_STATE_CONFIGURED)
{
GetPointerData(HID_Buffer);
USBD_HID_SendReport(&hUsbDeviceFS, HID_Buffer, 4);
}
else
{
/* ... */
}
}
}
/* USER CODE END 1 */
/**
* Init USB device Library, add supported class and start the library
* @retval None
*/
void MX_USB_Device_Init(void)
{
/* USER CODE BEGIN USB_Device_Init_PreTreatment */
/* USB Clock Initialization */
USBD_Clock_Config();
/* USER CODE END USB_Device_Init_PreTreatment */
/* Init Device Library, add supported class and start the library. */
if (USBD_Init(&hUsbDeviceFS, &HID_Desc, DEVICE_FS) != USBD_OK) {
Error_Handler();
}
if (USBD_RegisterClass(&hUsbDeviceFS, &USBD_HID) != USBD_OK) {
Error_Handler();
}
if (USBD_Start(&hUsbDeviceFS) != USBD_OK) {
Error_Handler();
}
/* USER CODE BEGIN USB_Device_Init_PostTreatment */
/* USER CODE END USB_Device_Init_PostTreatment */
}
/**
* @}
*/
/**
* @}
*/
|
