#include "main.h"
#include "usb_device.h"
#include "usbd_hid.h"
#define HID_MEDIA_REPORT 2
#define HYSTERESIS 200
ADC_HandleTypeDef hadc;
DMA_HandleTypeDef hdma_adc;
PCD_HandleTypeDef hpcd_USB_FS;
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_ADC_Init(void);
static void MX_USB_PCD_Init(void);
void sendVolDown(void);
void sendVolUp(void);
struct key_t
{
uint8_t id;
uint8_t modifier;
uint8_t reserved;
uint8_t keycode[6];
} key;
uint16_t ADCreg[8];
uint16_t ADCval[8];
uint16_t ADClast[8];
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_DMA_Init();
MX_ADC_Init();
MX_USB_HID_INIT();
HAL_ADC_Start_DMA(&hadc, ADCreg, 8);
while (1)
{
for(int i = 0; i < 8; i++){
ADCval[i] = ADCreg[i];
if(ADCval[i] - ADClast[i] > 2000 || ADClast[i] - ADCval[i] > 2000 ) ADClast[i] = ADCval[i];
}
// Volume Dial 8
if(ADCval[0] >= ADClast[0] + HYSTERESIS){
sendVolUp();
ADClast[0] = ADCval[0];
} else if(ADCval[0] <= ADClast[0] - HYSTERESIS){
sendVolDown();
ADClast[0] = ADCval[0];
}
// Dial 1
if(ADCval[1] >= ADClast[1] + HYSTERESIS){
} else if(ADCval[1] <= ADClast[1] - HYSTERESIS){
}
// SwitchLayer
if(ADCval[2] >= ADClast[2] + HYSTERESIS){
sendChar('v');
ADClast[2] = ADCval[2];
} else if(ADCval[2] <= ADClast[2] - HYSTERESIS){
sendChar('v');
ADClast[2] = ADCval[2];
}
// RotatePart Dial 3
if(ADCval[3] >= ADClast[3] + HYSTERESIS){
sendChar('R');
ADClast[3] = ADCval[3];
} else if(ADCval[3] <= ADClast[3] - HYSTERESIS){
sendChar('r');
ADClast[3] = ADCval[3];
}
// Grid Dial 4
if(ADCval[4] >= ADClast[4] + HYSTERESIS){
sendChar('n');
ADClast[4] = ADCval[4];
} else if(ADCval[4] <= ADClast[4] - HYSTERESIS){
sendChar('N');
ADClast[4] = ADCval[4];
}
// via
if(ADCval[5] >= ADClast[5] + HYSTERESIS){
} else if(ADCval[5] <= ADClast[5] - HYSTERESIS){
}
// Trackwidth Dial 6
if(ADCval[6] >= ADClast[6] + HYSTERESIS){
sendChar('w');
ADClast[6] = ADCval[6];
} else if(ADCval[6] <= ADClast[6] - HYSTERESIS){
sendChar('W');
ADClast[6] = ADCval[6];
}
// zoom
if(ADCval[7] >= ADClast[7] + HYSTERESIS){
sendCharWrong(0x3a);
ADClast[7] = ADCval[7];
} else if(ADCval[7] <= ADClast[7] - HYSTERESIS){
sendCharWrong(0x3b);
ADClast[7] = ADCval[7];
}
HAL_Delay(10);
}
}
const uint8_t _asciimap[128] =
{
0x00, // NUL
0x00, // SOH
0x00, // STX
0x00, // ETX
0x00, // EOT
0x00, // ENQ
0x00, // ACK
0x00, // BEL
0x2a, // BS Backspace
0x2b, // TAB Tab
0x28, // LF Enter
0x00, // VT
0x00, // FF
0x00, // CR
0x00, // SO
0x00, // SI
0x00, // DEL
0x00, // DC1
0x00, // DC2
0x00, // DC3
0x00, // DC4
0x00, // NAK
0x00, // SYN
0x00, // ETB
0x00, // CAN
0x00, // EM
0x00, // SUB
0x00, // ESC
0x00, // FS
0x00, // GS
0x00, // RS
0x00, // US
0x2c, // ' '
0x1e|0x80, // !
0x34|0x80, // "
0x20|0x80, // #
0x21|0x80, // $
0x22|0x80, // %
0x24|0x80, // &
0x34, // '
0x26|0x80, // (
0x27|0x80, // )
0x25|0x80, // *
0x2e|0x80, // +
0x36, // ,
0x2d, // -
0x37, // .
0x38, // /
0x27, // 0
0x1e, // 1
0x1f, // 2
0x20, // 3
0x21, // 4
0x22, // 5
0x23, // 6
0x24, // 7
0x25, // 8
0x26, // 9
0x33|0x80, // :
0x33, // ;
0x36|0x80, // <
0x2e, // =
0x37|0x80, // >
0x38|0x80, // ?
0x1f|0x80, // @
0x04|0x80, // A
0x05|0x80, // B
0x06|0x80, // C
0x07|0x80, // D
0x08|0x80, // E
0x09|0x80, // F
0x0a|0x80, // G
0x0b|0x80, // H
0x0c|0x80, // I
0x0d|0x80, // J
0x0e|0x80, // K
0x0f|0x80, // L
0x10|0x80, // M
0x11|0x80, // N
0x12|0x80, // O
0x13|0x80, // P
0x14|0x80, // Q
0x15|0x80, // R
0x16|0x80, // S
0x17|0x80, // T
0x18|0x80, // U
0x19|0x80, // V
0x1a|0x80, // W
0x1b|0x80, // X
0x1c|0x80, // Y
0x1d|0x80, // Z
0x2f, // [
0x31, // bslash
0x30, // ]
0x23|0x80, // ^
0x2d|0x80, // _
0x35, // `
0x04, // a
0x05, // b
0x06, // c
0x07, // d
0x08, // e
0x09, // f
0x0a, // g
0x0b, // h
0x0c, // i
0x0d, // j
0x0e, // k
0x0f, // l
0x10, // m
0x11, // n
0x12, // o
0x13, // p
0x14, // q
0x15, // r
0x16, // s
0x17, // t
0x18, // u
0x19, // v
0x1a, // w
0x1b, // x
0x1c, // y
0x1d, // z
0x2f|0x80, // {
0x31|0x80, // |
0x30|0x80, // }
0x35|0x80, // ~
0 // DEL
};
void sendChar(uint8_t ch){
if( ch > 128 ) ch -=128;
key.id = 1;
key.keycode[0]=_asciimap[ch]&0x7F;
key.keycode[1]=0;
if ( _asciimap[ch] & 0x80) key.modifier |= 0x02;
for(int i=0; i< 4;i++){
USBD_HID_SendReport(&hUsbDeviceFS, (uint8_t *)&key, sizeof(key));
HAL_Delay(10);
}
memset(key.keycode, 0 , sizeof(key.keycode));
key.modifier = 0;
USBD_HID_SendReport(&hUsbDeviceFS, (uint8_t *)&key, sizeof(key));
HAL_Delay(10);
}
void sendCharWrong(uint8_t ch){
key.id = 1;
key.keycode[0]=ch&0x7F;
key.keycode[1]=0;
if ( _asciimap[ch] & 0x80) key.modifier |= 0x02;
for(int i=0; i< 4;i++){
USBD_HID_SendReport(&hUsbDeviceFS, (uint8_t *)&key, sizeof(key));
HAL_Delay(10);
}
memset(key.keycode, 0 , sizeof(key.keycode));
key.modifier = 0;
USBD_HID_SendReport(&hUsbDeviceFS, (uint8_t *)&key, sizeof(key));
HAL_Delay(10);
}
void sendVolUp(){
uint8_t report[3];
report[0]= HID_MEDIA_REPORT;
report[1]= 0xE9;
report[2]= 0x00;
USBD_HID_SendReport(&hUsbDeviceFS, report, 3);
HAL_Delay(10);
report[0]= HID_MEDIA_REPORT;
report[1]= 0x00;
report[2]= 0x00;
USBD_HID_SendReport(&hUsbDeviceFS, report, 3);
}
void sendVolDown(){
uint8_t report[3];
report[0]= HID_MEDIA_REPORT;
report[1]= 0xEA;
report[2]= 0x00;
USBD_HID_SendReport(&hUsbDeviceFS, report, 3);
HAL_Delay(10);
report[0]= HID_MEDIA_REPORT;
report[1]= 0x00;
report[2]= 0x00;
USBD_HID_SendReport(&hUsbDeviceFS, report, 3);
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI14|RCC_OSCILLATORTYPE_HSI48;
RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
RCC_OscInitStruct.HSI14State = RCC_HSI14_ON;
RCC_OscInitStruct.HSI14CalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI48;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_HSI48;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
}
static void MX_ADC_Init(void)
{
ADC_ChannelConfTypeDef sConfig = {0};
hadc.Instance = ADC1;
hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
hadc.Init.Resolution = ADC_RESOLUTION_12B;
hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
hadc.Init.EOCSelection = ADC_EOC_SEQ_CONV;
hadc.Init.LowPowerAutoWait = DISABLE;
hadc.Init.LowPowerAutoPowerOff = DISABLE;
hadc.Init.ContinuousConvMode = ENABLE;
hadc.Init.DiscontinuousConvMode = DISABLE;
hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc.Init.DMAContinuousRequests = ENABLE;
hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED;
HAL_ADC_Init(&hadc);
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
sConfig.SamplingTime = ADC_SAMPLETIME_71CYCLES_5;
sConfig.Channel = ADC_CHANNEL_1;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
sConfig.Channel = ADC_CHANNEL_2;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
sConfig.Channel = ADC_CHANNEL_3;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
sConfig.Channel = ADC_CHANNEL_4;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
sConfig.Channel = ADC_CHANNEL_5;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
sConfig.Channel = ADC_CHANNEL_6;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
sConfig.Channel = ADC_CHANNEL_7;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
sConfig.Channel = ADC_CHANNEL_8;
HAL_ADC_ConfigChannel(&hadc, &sConfig);
}
static void MX_USB_PCD_Init(void)
{
hpcd_USB_FS.Instance = USB;
hpcd_USB_FS.Init.dev_endpoints = 8;
hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
hpcd_USB_FS.Init.phy_itface = PCD_PHY_EMBEDDED;
hpcd_USB_FS.Init.low_power_enable = DISABLE;
hpcd_USB_FS.Init.lpm_enable = DISABLE;
hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
HAL_PCD_Init(&hpcd_USB_FS);
}
static void MX_DMA_Init(void)
{
__HAL_RCC_DMA1_CLK_ENABLE();
HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
}
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, GPIO_PIN_RESET);
GPIO_InitStruct.Pin = GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
void Error_Handler(void)
{
while(1){
HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,1);
HAL_Delay(100);
HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,0);
HAL_Delay(100);
}
}