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-rw-r--r--fw/midi-dials/Src/curelib_src/curebuffer.c272
-rw-r--r--fw/midi-dials/Src/main.c220
-rw-r--r--fw/midi-dials/Src/stm32f0xx_hal_msp.c191
-rw-r--r--fw/midi-dials/Src/stm32f0xx_it.c176
-rw-r--r--fw/midi-dials/Src/system_stm32f0xx.c265
-rw-r--r--fw/midi-dials/Src/usb_device.c132
-rw-r--r--fw/midi-dials/Src/usbd_conf.c775
-rw-r--r--fw/midi-dials/Src/usbd_desc.c365
-rw-r--r--fw/midi-dials/Src/usbd_midi_if.c480
9 files changed, 2876 insertions, 0 deletions
diff --git a/fw/midi-dials/Src/curelib_src/curebuffer.c b/fw/midi-dials/Src/curelib_src/curebuffer.c
new file mode 100644
index 0000000..3792914
--- /dev/null
+++ b/fw/midi-dials/Src/curelib_src/curebuffer.c
@@ -0,0 +1,272 @@
+/*
+ *******************************************************************************
+ * [curebuffer.c]
+ * This module is for FIFO buffer.
+ *
+ * This program is under the terms of the GPLv3.
+ * https://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * Copyright(c) 2017 Keshikan (www.keshikan.net)
+ *******************************************************************************
+ */
+
+#include "curebuffer.h"
+#include <stdint.h>
+#include <stdlib.h>
+
+
+/////////////////////////////
+//methods for uint8_t FIFO.
+/////////////////////////////
+
+BUFFER_STATUS cureRingBufferU8Init(RingBufferU8 *rbuf, uint16_t buflen)
+{
+
+ uint32_t i;
+
+ cureRingBufferU8Free(rbuf);
+
+ rbuf->buffer = (uint8_t *)malloc( buflen * sizeof(uint8_t) );
+ if(NULL == rbuf->buffer){
+ return BUFFER_FAILURE;
+ }
+ for(i=0; i<buflen; i++){
+ rbuf->buffer[i] = 0;
+ }
+
+ rbuf->length = buflen;
+
+ return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBufferU8Free(RingBufferU8 *rbuf)
+{
+ if(NULL != rbuf->buffer){
+ free(rbuf->buffer);
+ }
+
+ rbuf->idx_front = rbuf->idx_rear = 0;
+ rbuf->length = 0;
+
+ return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBufferU8Enqueue(RingBufferU8 *rbuf, uint8_t *inputc)
+{
+ if( ((rbuf->idx_front +1)&(rbuf->length -1)) == rbuf->idx_rear ){//buffer overrun error occurs.
+ return BUFFER_FAILURE;
+ }else{
+
+ rbuf->buffer[rbuf->idx_front]= *inputc;
+ rbuf->idx_front++;
+ rbuf->idx_front &= (rbuf->length -1);
+ return BUFFER_SUCCESS;
+ }
+}
+
+BUFFER_STATUS cureRingBufferU8Dequeue(RingBufferU8 *rbuf, uint8_t *ret)
+{
+ if(rbuf->idx_front == rbuf->idx_rear){//if buffer underrun error occurs.
+ return BUFFER_FAILURE;
+ }else{
+
+ *ret = (rbuf->buffer[rbuf->idx_rear]);
+ rbuf->idx_rear++;
+ rbuf->idx_rear &= (rbuf->length -1);
+ return BUFFER_SUCCESS;
+ }
+}
+
+//debug
+uint16_t _cureRingBufferU8GetUsedSize(RingBufferU8 *rbuf)
+{
+ if(rbuf->idx_front >= rbuf->idx_rear){
+ return rbuf->idx_front - rbuf->idx_rear;
+ }else{
+ return rbuf->idx_front + rbuf->length - rbuf->idx_rear;
+ }
+
+}
+
+/////////////////////////////
+//methods for int16_t FIFO.
+/////////////////////////////
+
+BUFFER_STATUS cureRingBuffer16Init(RingBuffer16 *rbuf, uint16_t buflen)
+{
+
+ uint32_t i;
+
+ cureRingBuffer16Free(rbuf);
+
+ rbuf->buffer = (int16_t *)malloc( buflen * sizeof(int16_t) );
+ if(NULL == rbuf->buffer){
+ return BUFFER_FAILURE;
+ }
+ for(i=0; i<buflen; i++){
+ rbuf->buffer[i] = 0;
+ }
+ rbuf->length = buflen;
+ return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBuffer16Free(RingBuffer16 *rbuf)
+{
+ if(NULL != rbuf->buffer){
+ free(rbuf->buffer);
+ }
+
+ rbuf->idx_front = rbuf->idx_rear = 0;
+ rbuf->length = 0;
+
+ return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBuffer16Enqueue(RingBuffer16 *rbuf, int16_t *inputc)
+{
+ if( ((rbuf->idx_front +1)&(rbuf->length -1)) == rbuf->idx_rear ){//buffer overrun error occurs.
+ return BUFFER_FAILURE;
+ }else{
+ rbuf->buffer[rbuf->idx_front]= *inputc;
+ rbuf->idx_front++;
+ rbuf->idx_front &= (rbuf->length -1);
+ return BUFFER_SUCCESS;
+ }
+}
+
+BUFFER_STATUS cureRingBuffer16EnqueueIgnoreErr(RingBuffer16 *rbuf, int16_t *inputc)
+{
+
+ rbuf->buffer[rbuf->idx_front]= *inputc;
+ rbuf->idx_front++;
+ rbuf->idx_front &= (rbuf->length -1);
+ return BUFFER_SUCCESS;
+
+}
+
+
+BUFFER_STATUS cureRingBuffer16Dequeue(RingBuffer16 *rbuf, int16_t *ret)
+{
+ if(rbuf->idx_front == rbuf->idx_rear){//if buffer underrun error occurs.
+ return BUFFER_FAILURE;
+ }else{
+ *ret = (rbuf->buffer[rbuf->idx_rear]);
+ rbuf->idx_rear++;
+ rbuf->idx_rear &= (rbuf->length -1);
+ return BUFFER_SUCCESS;
+ }
+}
+
+
+BUFFER_STATUS cureRingBuffer16GetElement(RingBuffer16 *rbuf, int16_t *ret, uint16_t delaynum, uint16_t delay_buffer_length)
+{
+
+ if(rbuf->idx_front >= delaynum){
+ rbuf->idx_rear = rbuf->idx_front - delaynum;
+ }else{
+ rbuf->idx_rear = delay_buffer_length - (delaynum - rbuf->idx_front);
+ }
+ *ret = (rbuf->buffer[rbuf->idx_rear]);
+ return BUFFER_SUCCESS;
+
+}
+
+/////////////////////////////
+//methods for uint32_t FIFO.
+/////////////////////////////
+
+BUFFER_STATUS cureRingBufferU32Init(RingBuffer32 *rbuf, uint16_t buflen)
+{
+
+ uint32_t i;
+
+ cureRingBufferU32Free(rbuf);
+
+ rbuf->buffer = (uint32_t *)malloc( buflen * sizeof(uint32_t) );
+ if(NULL == rbuf->buffer){
+ return BUFFER_FAILURE;
+ }
+ for(i=0; i<buflen; i++){
+ rbuf->buffer[i] = 0;
+ }
+ rbuf->length = buflen;
+ return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBufferU32Free(RingBuffer32 *rbuf)
+{
+ if(NULL != rbuf->buffer){
+ free(rbuf->buffer);
+ }
+
+ rbuf->idx_front = rbuf->idx_rear = 0;
+ rbuf->length = 0;
+
+ return BUFFER_SUCCESS;
+}
+
+BUFFER_STATUS cureRingBufferU32Enqueue(RingBuffer32 *rbuf, uint32_t *inputc)
+{
+ if( ((rbuf->idx_front +1)&(rbuf->length -1)) == rbuf->idx_rear ){//buffer overrun error occurs.
+ return BUFFER_FAILURE;
+ }else{
+ rbuf->buffer[rbuf->idx_front]= *inputc;
+ rbuf->idx_front++;
+ rbuf->idx_front &= (rbuf->length -1);
+ return BUFFER_SUCCESS;
+ }
+}
+
+BUFFER_STATUS cureRingBufferU32EnqueueIgnoreErr(RingBuffer32 *rbuf, uint32_t *inputc)
+{
+
+ rbuf->buffer[rbuf->idx_front]= *inputc;
+ rbuf->idx_front++;
+ rbuf->idx_front &= (rbuf->length -1);
+ return BUFFER_SUCCESS;
+
+}
+
+
+BUFFER_STATUS cureRingBufferU32Dequeue(RingBuffer32 *rbuf, uint32_t *ret)
+{
+ if(rbuf->idx_front == rbuf->idx_rear){//if buffer underrun error occurs.
+ return BUFFER_FAILURE;
+ }else{
+ *ret = (rbuf->buffer[rbuf->idx_rear]);
+ rbuf->idx_rear++;
+ rbuf->idx_rear &= (rbuf->length -1);
+ return BUFFER_SUCCESS;
+ }
+}
+
+
+BUFFER_STATUS cureRingBufferU32GetElement(RingBuffer32 *rbuf, uint32_t *ret, uint16_t delaynum, uint16_t delay_buffer_length)
+{
+ uint16_t buf;
+
+
+ if(rbuf->idx_front >= delaynum){
+ buf = rbuf->idx_front - delaynum;
+ }else{
+ buf = delay_buffer_length - (delaynum - rbuf->idx_front);
+ }
+ *ret = (rbuf->buffer[buf]);
+ return BUFFER_SUCCESS;
+
+}
+
+
+//BUFFER_STATUS cureRingBufferU32GetElement(RingBuffer32 *rbuf, uint32_t *ret, uint16_t delaynum, uint16_t delay_buffer_length)
+//{
+//
+//
+// if(rbuf->idx_front >= delaynum){
+// rbuf->idx_rear = rbuf->idx_front - delaynum;
+// }else{
+// rbuf->idx_rear = delay_buffer_length - (delaynum - rbuf->idx_front);
+// }
+// *ret = (rbuf->buffer[rbuf->idx_rear]);
+// return BUFFER_SUCCESS;
+//
+//}
diff --git a/fw/midi-dials/Src/main.c b/fw/midi-dials/Src/main.c
new file mode 100644
index 0000000..a97c42d
--- /dev/null
+++ b/fw/midi-dials/Src/main.c
@@ -0,0 +1,220 @@
+
+#include "main.h"
+#include "usb_device.h"
+
+#include "device_conf.h"
+#include "curemisc.h"
+#include "curebuffer.h"
+#include "usbd_midi_if.h"
+#include "usbd_midi.h"
+
+#define HYST 50
+
+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);
+
+uint16_t ADC_val[8];
+uint16_t ADC_val_old[8];
+uint8_t dial[8];
+uint8_t dial_mapping[8] = {1, 2, 3, 4, 5, 6, 7, 0};
+uint16_t dial_div[8] = {32, 32, 32, 32, 32, 32, 32, 256};
+
+uint8_t midi_packet[4] = {0x0B, 0xB0, 0x00, 0x00};
+
+int main(void)
+{
+ HAL_Init();
+
+ SystemClock_Config();
+
+ MX_GPIO_Init();
+ MX_DMA_Init();
+ MX_ADC_Init();
+ MX_USB_MIDI_INIT();
+
+ HAL_ADC_Start_DMA(&hadc, ADC_val, 8);
+
+
+ if(FUNC_ERROR == midiInit() ){
+ while(1){
+ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, SET);
+ HAL_Delay(500);
+ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, RESET);
+ HAL_Delay(500);
+ }
+ }
+
+ //Wait usb configuration.
+ while(1){
+
+ if(USBD_STATE_CONFIGURED == hUsbDeviceFS.dev_state){
+ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, SET);
+ break;
+ }else{
+ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, RESET);
+ }
+ }
+
+ while (1)
+ {
+ while(1){
+ if(USBD_STATE_CONFIGURED == hUsbDeviceFS.dev_state){
+ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, SET);
+ break;
+ }else{
+ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, SET);
+ HAL_Delay(200);
+ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13, RESET);
+ HAL_Delay(200);
+ }
+ }
+
+ midiProcess();
+ for(uint8_t i = 0; i <= 7; i++){
+ if(ADC_val[dial_mapping[i]] >= (ADC_val_old[dial_mapping[i]] + HYST) || ADC_val[dial_mapping[i]] <= (ADC_val_old[dial_mapping[i]] - HYST)){
+ ADC_val_old[dial_mapping[i]] = ADC_val[dial_mapping[i]];
+ dial[i] = (uint8_t)((ADC_val[dial_mapping[i]]/dial_div[i]) & 0x7F);
+ midi_packet[3] = dial[i];
+ midi_packet[1] = 0xB0 + i;
+ sendMidiMessage(midi_packet, 4);
+ USBD_MIDI_SendPacket();
+ HAL_Delay(2);
+ }
+ }
+ //USBD_MIDI_SendData(&hUsbDeviceFS, midi_packet, 4);
+
+
+ }
+}
+
+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);
+ }
+}
diff --git a/fw/midi-dials/Src/stm32f0xx_hal_msp.c b/fw/midi-dials/Src/stm32f0xx_hal_msp.c
new file mode 100644
index 0000000..8695580
--- /dev/null
+++ b/fw/midi-dials/Src/stm32f0xx_hal_msp.c
@@ -0,0 +1,191 @@
+/* USER CODE BEGIN Header */
+/**
+ ******************************************************************************
+ * File Name : stm32f0xx_hal_msp.c
+ * Description : This file provides code for the MSP Initialization
+ * and de-Initialization codes.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+extern DMA_HandleTypeDef hdma_adc;
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN TD */
+
+/* USER CODE END TD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN Define */
+
+/* USER CODE END Define */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN Macro */
+
+/* USER CODE END Macro */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* External functions --------------------------------------------------------*/
+/* USER CODE BEGIN ExternalFunctions */
+
+/* USER CODE END ExternalFunctions */
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+/**
+ * Initializes the Global MSP.
+ */
+void HAL_MspInit(void)
+{
+ /* USER CODE BEGIN MspInit 0 */
+
+ /* USER CODE END MspInit 0 */
+
+ __HAL_RCC_SYSCFG_CLK_ENABLE();
+ __HAL_RCC_PWR_CLK_ENABLE();
+
+ /* System interrupt init*/
+
+ /* USER CODE BEGIN MspInit 1 */
+
+ /* USER CODE END MspInit 1 */
+}
+
+/**
+* @brief ADC MSP Initialization
+* This function configures the hardware resources used in this example
+* @param hadc: ADC handle pointer
+* @retval None
+*/
+void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)
+{
+ GPIO_InitTypeDef GPIO_InitStruct = {0};
+ if(hadc->Instance==ADC1)
+ {
+ /* USER CODE BEGIN ADC1_MspInit 0 */
+
+ /* USER CODE END ADC1_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_ADC1_CLK_ENABLE();
+
+ __HAL_RCC_GPIOA_CLK_ENABLE();
+ __HAL_RCC_GPIOB_CLK_ENABLE();
+ /**ADC GPIO Configuration
+ PA0 ------> ADC_IN0
+ PA1 ------> ADC_IN1
+ PA2 ------> ADC_IN2
+ PA3 ------> ADC_IN3
+ PA4 ------> ADC_IN4
+ PA5 ------> ADC_IN5
+ PA6 ------> ADC_IN6
+ PA7 ------> ADC_IN7
+ PB0 ------> ADC_IN8
+ */
+ GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
+ |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
+ GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = GPIO_PIN_0;
+ GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
+ GPIO_InitStruct.Pull = GPIO_NOPULL;
+ HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+ /* ADC1 DMA Init */
+ /* ADC Init */
+ hdma_adc.Instance = DMA1_Channel1;
+ hdma_adc.Init.Direction = DMA_PERIPH_TO_MEMORY;
+ hdma_adc.Init.PeriphInc = DMA_PINC_DISABLE;
+ hdma_adc.Init.MemInc = DMA_MINC_ENABLE;
+ hdma_adc.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
+ hdma_adc.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
+ hdma_adc.Init.Mode = DMA_CIRCULAR;
+ hdma_adc.Init.Priority = DMA_PRIORITY_MEDIUM;
+ if (HAL_DMA_Init(&hdma_adc) != HAL_OK)
+ {
+ Error_Handler();
+ }
+
+ __HAL_LINKDMA(hadc,DMA_Handle,hdma_adc);
+
+ /* USER CODE BEGIN ADC1_MspInit 1 */
+
+ /* USER CODE END ADC1_MspInit 1 */
+ }
+
+}
+
+/**
+* @brief ADC MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param hadc: ADC handle pointer
+* @retval None
+*/
+void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc)
+{
+ if(hadc->Instance==ADC1)
+ {
+ /* USER CODE BEGIN ADC1_MspDeInit 0 */
+
+ /* USER CODE END ADC1_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_ADC1_CLK_DISABLE();
+
+ /**ADC GPIO Configuration
+ PA0 ------> ADC_IN0
+ PA1 ------> ADC_IN1
+ PA2 ------> ADC_IN2
+ PA3 ------> ADC_IN3
+ PA4 ------> ADC_IN4
+ PA5 ------> ADC_IN5
+ PA6 ------> ADC_IN6
+ PA7 ------> ADC_IN7
+ PB0 ------> ADC_IN8
+ */
+ HAL_GPIO_DeInit(GPIOA, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
+ |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
+
+ HAL_GPIO_DeInit(GPIOB, GPIO_PIN_0);
+
+ /* ADC1 DMA DeInit */
+ HAL_DMA_DeInit(hadc->DMA_Handle);
+ /* USER CODE BEGIN ADC1_MspDeInit 1 */
+
+ /* USER CODE END ADC1_MspDeInit 1 */
+ }
+
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Src/stm32f0xx_it.c b/fw/midi-dials/Src/stm32f0xx_it.c
new file mode 100644
index 0000000..3d94908
--- /dev/null
+++ b/fw/midi-dials/Src/stm32f0xx_it.c
@@ -0,0 +1,176 @@
+/* USER CODE BEGIN Header */
+/**
+ ******************************************************************************
+ * @file stm32f0xx_it.c
+ * @brief Interrupt Service Routines.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+#include "stm32f0xx_it.h"
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN TD */
+
+/* USER CODE END TD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+
+/* USER CODE END PD */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN PM */
+
+/* USER CODE END PM */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN PFP */
+
+/* USER CODE END PFP */
+
+/* Private user code ---------------------------------------------------------*/
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/* External variables --------------------------------------------------------*/
+extern DMA_HandleTypeDef hdma_adc;
+extern PCD_HandleTypeDef hpcd_USB_FS;
+
+/* USER CODE BEGIN EV */
+
+/* USER CODE END EV */
+
+/******************************************************************************/
+/* Cortex-M0 Processor Interruption and Exception Handlers */
+/******************************************************************************/
+/**
+ * @brief This function handles Non maskable interrupt.
+ */
+void NMI_Handler(void)
+{
+ /* USER CODE BEGIN NonMaskableInt_IRQn 0 */
+
+ /* USER CODE END NonMaskableInt_IRQn 0 */
+ /* USER CODE BEGIN NonMaskableInt_IRQn 1 */
+
+ /* USER CODE END NonMaskableInt_IRQn 1 */
+}
+
+/**
+ * @brief This function handles Hard fault interrupt.
+ */
+void HardFault_Handler(void)
+{
+ /* USER CODE BEGIN HardFault_IRQn 0 */
+
+ /* USER CODE END HardFault_IRQn 0 */
+ while (1)
+ {
+ /* USER CODE BEGIN W1_HardFault_IRQn 0 */
+ /* USER CODE END W1_HardFault_IRQn 0 */
+ }
+}
+
+/**
+ * @brief This function handles System service call via SWI instruction.
+ */
+void SVC_Handler(void)
+{
+ /* USER CODE BEGIN SVC_IRQn 0 */
+
+ /* USER CODE END SVC_IRQn 0 */
+ /* USER CODE BEGIN SVC_IRQn 1 */
+
+ /* USER CODE END SVC_IRQn 1 */
+}
+
+/**
+ * @brief This function handles Pendable request for system service.
+ */
+void PendSV_Handler(void)
+{
+ /* USER CODE BEGIN PendSV_IRQn 0 */
+
+ /* USER CODE END PendSV_IRQn 0 */
+ /* USER CODE BEGIN PendSV_IRQn 1 */
+
+ /* USER CODE END PendSV_IRQn 1 */
+}
+
+/**
+ * @brief This function handles System tick timer.
+ */
+void SysTick_Handler(void)
+{
+ /* USER CODE BEGIN SysTick_IRQn 0 */
+
+ /* USER CODE END SysTick_IRQn 0 */
+ HAL_IncTick();
+ /* USER CODE BEGIN SysTick_IRQn 1 */
+
+ /* USER CODE END SysTick_IRQn 1 */
+}
+
+/******************************************************************************/
+/* STM32F0xx Peripheral Interrupt Handlers */
+/* Add here the Interrupt Handlers for the used peripherals. */
+/* For the available peripheral interrupt handler names, */
+/* please refer to the startup file (startup_stm32f0xx.s). */
+/******************************************************************************/
+
+/**
+ * @brief This function handles DMA1 channel 1 global interrupt.
+ */
+void DMA1_Channel1_IRQHandler(void)
+{
+ /* USER CODE BEGIN DMA1_Channel1_IRQn 0 */
+
+ /* USER CODE END DMA1_Channel1_IRQn 0 */
+ HAL_DMA_IRQHandler(&hdma_adc);
+ /* USER CODE BEGIN DMA1_Channel1_IRQn 1 */
+
+ /* USER CODE END DMA1_Channel1_IRQn 1 */
+}
+
+/**
+* @brief This function handles USB global Interrupt / USB wake-up interrupt through EXTI line 18.
+*/
+void USB_IRQHandler(void)
+{
+ /* USER CODE BEGIN USB_IRQn 0 */
+
+ /* USER CODE END USB_IRQn 0 */
+ HAL_PCD_IRQHandler(&hpcd_USB_FS);
+ /* USER CODE BEGIN USB_IRQn 1 */
+
+ /* USER CODE END USB_IRQn 1 */
+}
+
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Src/system_stm32f0xx.c b/fw/midi-dials/Src/system_stm32f0xx.c
new file mode 100644
index 0000000..6a3202b
--- /dev/null
+++ b/fw/midi-dials/Src/system_stm32f0xx.c
@@ -0,0 +1,265 @@
+/**
+ ******************************************************************************
+ * @file system_stm32f0xx.c
+ * @author MCD Application Team
+ * @brief CMSIS Cortex-M0 Device Peripheral Access Layer System Source File.
+ *
+ * 1. This file provides two functions and one global variable to be called from
+ * user application:
+ * - SystemInit(): This function is called at startup just after reset and
+ * before branch to main program. This call is made inside
+ * the "startup_stm32f0xx.s" file.
+ *
+ * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
+ * by the user application to setup the SysTick
+ * timer or configure other parameters.
+ *
+ * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
+ * be called whenever the core clock is changed
+ * during program execution.
+ *
+ * 2. After each device reset the HSI (8 MHz) is used as system clock source.
+ * Then SystemInit() function is called, in "startup_stm32f0xx.s" file, to
+ * configure the system clock before to branch to main program.
+ *
+ * 3. This file configures the system clock as follows:
+ *=============================================================================
+ * Supported STM32F0xx device
+ *-----------------------------------------------------------------------------
+ * System Clock source | HSI
+ *-----------------------------------------------------------------------------
+ * SYSCLK(Hz) | 8000000
+ *-----------------------------------------------------------------------------
+ * HCLK(Hz) | 8000000
+ *-----------------------------------------------------------------------------
+ * AHB Prescaler | 1
+ *-----------------------------------------------------------------------------
+ * APB1 Prescaler | 1
+ *-----------------------------------------------------------------------------
+ *=============================================================================
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/** @addtogroup CMSIS
+ * @{
+ */
+
+/** @addtogroup stm32f0xx_system
+ * @{
+ */
+
+/** @addtogroup STM32F0xx_System_Private_Includes
+ * @{
+ */
+
+#include "stm32f0xx.h"
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F0xx_System_Private_TypesDefinitions
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F0xx_System_Private_Defines
+ * @{
+ */
+#if !defined (HSE_VALUE)
+ #define HSE_VALUE ((uint32_t)8000000) /*!< Default value of the External oscillator in Hz.
+ This value can be provided and adapted by the user application. */
+#endif /* HSE_VALUE */
+
+#if !defined (HSI_VALUE)
+ #define HSI_VALUE ((uint32_t)8000000) /*!< Default value of the Internal oscillator in Hz.
+ This value can be provided and adapted by the user application. */
+#endif /* HSI_VALUE */
+
+#if !defined (HSI48_VALUE)
+#define HSI48_VALUE ((uint32_t)48000000) /*!< Default value of the HSI48 Internal oscillator in Hz.
+ This value can be provided and adapted by the user application. */
+#endif /* HSI48_VALUE */
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F0xx_System_Private_Macros
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F0xx_System_Private_Variables
+ * @{
+ */
+ /* This variable is updated in three ways:
+ 1) by calling CMSIS function SystemCoreClockUpdate()
+ 2) by calling HAL API function HAL_RCC_GetHCLKFreq()
+ 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
+ Note: If you use this function to configure the system clock there is no need to
+ call the 2 first functions listed above, since SystemCoreClock variable is
+ updated automatically.
+ */
+uint32_t SystemCoreClock = 8000000;
+
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t APBPrescTable[8] = {0, 0, 0, 0, 1, 2, 3, 4};
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F0xx_System_Private_FunctionPrototypes
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup STM32F0xx_System_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Setup the microcontroller system.
+ * @param None
+ * @retval None
+ */
+void SystemInit(void)
+{
+ /* NOTE :SystemInit(): This function is called at startup just after reset and
+ before branch to main program. This call is made inside
+ the "startup_stm32f0xx.s" file.
+ User can setups the default system clock (System clock source, PLL Multiplier
+ and Divider factors, AHB/APBx prescalers and Flash settings).
+ */
+}
+
+/**
+ * @brief Update SystemCoreClock variable according to Clock Register Values.
+ * The SystemCoreClock variable contains the core clock (HCLK), it can
+ * be used by the user application to setup the SysTick timer or configure
+ * other parameters.
+ *
+ * @note Each time the core clock (HCLK) changes, this function must be called
+ * to update SystemCoreClock variable value. Otherwise, any configuration
+ * based on this variable will be incorrect.
+ *
+ * @note - The system frequency computed by this function is not the real
+ * frequency in the chip. It is calculated based on the predefined
+ * constant and the selected clock source:
+ *
+ * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
+ *
+ * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
+ *
+ * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
+ * or HSI_VALUE(*) multiplied/divided by the PLL factors.
+ *
+ * (*) HSI_VALUE is a constant defined in stm32f0xx_hal.h file (default value
+ * 8 MHz) but the real value may vary depending on the variations
+ * in voltage and temperature.
+ *
+ * (**) HSE_VALUE is a constant defined in stm32f0xx_hal.h file (default value
+ * 8 MHz), user has to ensure that HSE_VALUE is same as the real
+ * frequency of the crystal used. Otherwise, this function may
+ * have wrong result.
+ *
+ * - The result of this function could be not correct when using fractional
+ * value for HSE crystal.
+ *
+ * @param None
+ * @retval None
+ */
+void SystemCoreClockUpdate (void)
+{
+ uint32_t tmp = 0, pllmull = 0, pllsource = 0, predivfactor = 0;
+
+ /* Get SYSCLK source -------------------------------------------------------*/
+ tmp = RCC->CFGR & RCC_CFGR_SWS;
+
+ switch (tmp)
+ {
+ case RCC_CFGR_SWS_HSI: /* HSI used as system clock */
+ SystemCoreClock = HSI_VALUE;
+ break;
+ case RCC_CFGR_SWS_HSE: /* HSE used as system clock */
+ SystemCoreClock = HSE_VALUE;
+ break;
+ case RCC_CFGR_SWS_PLL: /* PLL used as system clock */
+ /* Get PLL clock source and multiplication factor ----------------------*/
+ pllmull = RCC->CFGR & RCC_CFGR_PLLMUL;
+ pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
+ pllmull = ( pllmull >> 18) + 2;
+ predivfactor = (RCC->CFGR2 & RCC_CFGR2_PREDIV) + 1;
+
+ if (pllsource == RCC_CFGR_PLLSRC_HSE_PREDIV)
+ {
+ /* HSE used as PLL clock source : SystemCoreClock = HSE/PREDIV * PLLMUL */
+ SystemCoreClock = (HSE_VALUE/predivfactor) * pllmull;
+ }
+#if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F091xC) || defined(STM32F098xx)
+ else if (pllsource == RCC_CFGR_PLLSRC_HSI48_PREDIV)
+ {
+ /* HSI48 used as PLL clock source : SystemCoreClock = HSI48/PREDIV * PLLMUL */
+ SystemCoreClock = (HSI48_VALUE/predivfactor) * pllmull;
+ }
+#endif /* STM32F042x6 || STM32F048xx || STM32F072xB || STM32F078xx || STM32F091xC || STM32F098xx */
+ else
+ {
+#if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F070x6) \
+ || defined(STM32F078xx) || defined(STM32F071xB) || defined(STM32F072xB) \
+ || defined(STM32F070xB) || defined(STM32F091xC) || defined(STM32F098xx) || defined(STM32F030xC)
+ /* HSI used as PLL clock source : SystemCoreClock = HSI/PREDIV * PLLMUL */
+ SystemCoreClock = (HSI_VALUE/predivfactor) * pllmull;
+#else
+ /* HSI used as PLL clock source : SystemCoreClock = HSI/2 * PLLMUL */
+ SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
+#endif /* STM32F042x6 || STM32F048xx || STM32F070x6 ||
+ STM32F071xB || STM32F072xB || STM32F078xx || STM32F070xB ||
+ STM32F091xC || STM32F098xx || STM32F030xC */
+ }
+ break;
+ default: /* HSI used as system clock */
+ SystemCoreClock = HSI_VALUE;
+ break;
+ }
+ /* Compute HCLK clock frequency ----------------*/
+ /* Get HCLK prescaler */
+ tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
+ /* HCLK clock frequency */
+ SystemCoreClock >>= tmp;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
diff --git a/fw/midi-dials/Src/usb_device.c b/fw/midi-dials/Src/usb_device.c
new file mode 100644
index 0000000..8afc228
--- /dev/null
+++ b/fw/midi-dials/Src/usb_device.c
@@ -0,0 +1,132 @@
+/**
+ ******************************************************************************
+ * @file : usb_device.c
+ * @version : v2.0_Cube
+ * @brief : This file implements the USB Device
+ ******************************************************************************
+ * This notice applies to any and all portions of this file
+ * that are not between comment pairs USER CODE BEGIN and
+ * USER CODE END. Other portions of this file, whether
+ * inserted by the user or by software development tools
+ * are owned by their respective copyright owners.
+ *
+ * Copyright (c) 2018 STMicroelectronics International N.V.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted, provided that the following conditions are met:
+ *
+ * 1. Redistribution of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of other
+ * contributors to this software may be used to endorse or promote products
+ * derived from this software without specific written permission.
+ * 4. This software, including modifications and/or derivative works of this
+ * software, must execute solely and exclusively on microcontroller or
+ * microprocessor devices manufactured by or for STMicroelectronics.
+ * 5. Redistribution and use of this software other than as permitted under
+ * this license is void and will automatically terminate your rights under
+ * this license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
+ * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
+ * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "usb_device.h"
+#include "usbd_core.h"
+#include "usbd_desc.h"
+
+/* USER CODE BEGIN Includes */
+#include "usbd_midi.h"
+#include "usbd_midi_if.h"
+
+/* USER CODE END Includes */
+
+/* USER CODE BEGIN PV */
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE END PV */
+
+/* USER CODE BEGIN PFP */
+/* Private function prototypes -----------------------------------------------*/
+
+/* USER CODE END PFP */
+
+/* USB Device Core handle declaration. */
+USBD_HandleTypeDef hUsbDeviceFS;
+
+/*
+ * -- Insert your variables declaration here --
+ */
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/*
+ * -- Insert your external function declaration here --
+ */
+/* USER CODE BEGIN 1 */
+
+void MX_USB_MIDI_INIT(void)
+{
+ USBD_Init(&hUsbDeviceFS, &FS_Desc, DEVICE_FS);
+
+ USBD_RegisterClass(&hUsbDeviceFS, &USBD_MIDI);
+
+ USBD_MIDI_RegisterInterface(&hUsbDeviceFS, &USBD_Interface_fops_FS);
+
+ USBD_Start(&hUsbDeviceFS);
+}
+
+/* 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 */
+#ifdef USBMIDI
+ /* USER CODE END USB_DEVICE_Init_PreTreatment */
+
+ /* Init Device Library, add supported class and start the library. */
+ USBD_Init(&hUsbDeviceFS, &FS_Desc, DEVICE_FS);
+
+ USBD_RegisterClass(&hUsbDeviceFS, &USBD_CDC);
+
+ USBD_CDC_RegisterInterface(&hUsbDeviceFS, &USBD_Interface_fops_FS);
+
+ USBD_Start(&hUsbDeviceFS);
+
+ /* USER CODE BEGIN USB_DEVICE_Init_PostTreatment */
+#endif
+ /* USER CODE END USB_DEVICE_Init_PostTreatment */
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Src/usbd_conf.c b/fw/midi-dials/Src/usbd_conf.c
new file mode 100644
index 0000000..cb09894
--- /dev/null
+++ b/fw/midi-dials/Src/usbd_conf.c
@@ -0,0 +1,775 @@
+/**
+ ******************************************************************************
+ * @file : usbd_conf.c
+ * @version : v2.0_Cube
+ * @brief : This file implements the board support package for the USB device library
+ ******************************************************************************
+ * This notice applies to any and all portions of this file
+ * that are not between comment pairs USER CODE BEGIN and
+ * USER CODE END. Other portions of this file, whether
+ * inserted by the user or by software development tools
+ * are owned by their respective copyright owners.
+ *
+ * Copyright (c) 2018 STMicroelectronics International N.V.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted, provided that the following conditions are met:
+ *
+ * 1. Redistribution of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of other
+ * contributors to this software may be used to endorse or promote products
+ * derived from this software without specific written permission.
+ * 4. This software, including modifications and/or derivative works of this
+ * software, must execute solely and exclusively on microcontroller or
+ * microprocessor devices manufactured by or for STMicroelectronics.
+ * 5. Redistribution and use of this software other than as permitted under
+ * this license is void and will automatically terminate your rights under
+ * this license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
+ * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
+ * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx.h"
+#include "stm32f0xx_hal.h"
+#include "usbd_def.h"
+#include "usbd_core.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+
+/* USER CODE BEGIN PV */
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE END PV */
+
+PCD_HandleTypeDef hpcd_USB_FS;
+//void _Error_Handler(char * file, int line);
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/* USER CODE BEGIN PFP */
+/* Private function prototypes -----------------------------------------------*/
+
+/* USER CODE END PFP */
+
+/* Private functions ---------------------------------------------------------*/
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state);
+//extern void SystemClock_Config(void);
+
+/*******************************************************************************
+ LL Driver Callbacks (PCD -> USB Device Library)
+*******************************************************************************/
+/* MSP Init */
+
+void HAL_PCD_MspInit(PCD_HandleTypeDef* pcdHandle)
+{
+ if(pcdHandle->Instance==USB)
+ {
+ /* USER CODE BEGIN USB_MspInit 0 */
+
+ /* USER CODE END USB_MspInit 0 */
+ /* Peripheral clock enable */
+ __HAL_RCC_USB_CLK_ENABLE();
+
+ /* Peripheral interrupt init */
+ HAL_NVIC_SetPriority(USB_IRQn, 1, 0);
+ HAL_NVIC_EnableIRQ(USB_IRQn);
+ /* USER CODE BEGIN USB_MspInit 1 */
+
+ /* USER CODE END USB_MspInit 1 */
+ }
+}
+
+void HAL_PCD_MspDeInit(PCD_HandleTypeDef* pcdHandle)
+{
+ if(pcdHandle->Instance==USB)
+ {
+ /* USER CODE BEGIN USB_MspDeInit 0 */
+
+ /* USER CODE END USB_MspDeInit 0 */
+ /* Peripheral clock disable */
+ __HAL_RCC_USB_CLK_DISABLE();
+
+ /* Peripheral interrupt Deinit*/
+ HAL_NVIC_DisableIRQ(USB_IRQn);
+
+ /* USER CODE BEGIN USB_MspDeInit 1 */
+
+ /* USER CODE END USB_MspDeInit 1 */
+ }
+}
+
+/**
+ * @brief Setup stage callback
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
+{
+ USBD_LL_SetupStage((USBD_HandleTypeDef*)hpcd->pData, (uint8_t *)hpcd->Setup);
+}
+
+/**
+ * @brief Data Out stage callback.
+ * @param hpcd: PCD handle
+ * @param epnum: Endpoint number
+ * @retval None
+ */
+void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+ USBD_LL_DataOutStage((USBD_HandleTypeDef*)hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
+}
+
+/**
+ * @brief Data In stage callback.
+ * @param hpcd: PCD handle
+ * @param epnum: Endpoint number
+ * @retval None
+ */
+void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+ USBD_LL_DataInStage((USBD_HandleTypeDef*)hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
+}
+
+/**
+ * @brief SOF callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
+{
+ USBD_LL_SOF((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/**
+ * @brief Reset callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
+{
+ USBD_SpeedTypeDef speed = USBD_SPEED_FULL;
+
+ /* Set USB current speed. */
+ switch (hpcd->Init.speed)
+ {
+ case PCD_SPEED_FULL:
+ speed = USBD_SPEED_FULL;
+ break;
+
+ default:
+ speed = USBD_SPEED_FULL;
+ break;
+ }
+ USBD_LL_SetSpeed((USBD_HandleTypeDef*)hpcd->pData, speed);
+
+ /* Reset Device. */
+ USBD_LL_Reset((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/**
+ * @brief Suspend callback.
+ * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* Inform USB library that core enters in suspend Mode. */
+ USBD_LL_Suspend((USBD_HandleTypeDef*)hpcd->pData);
+ /* Enter in STOP mode. */
+ /* USER CODE BEGIN 2 */
+ if (hpcd->Init.low_power_enable)
+ {
+ /* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register. */
+ SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
+ }
+ /* USER CODE END 2 */
+}
+
+/**
+ * @brief Resume callback.
+ * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* USER CODE BEGIN 3 */
+
+ /* USER CODE END 3 */
+ USBD_LL_Resume((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/**
+ * @brief ISOOUTIncomplete callback.
+ * @param hpcd: PCD handle
+ * @param epnum: Endpoint number
+ * @retval None
+ */
+void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+ USBD_LL_IsoOUTIncomplete((USBD_HandleTypeDef*)hpcd->pData, epnum);
+}
+
+/**
+ * @brief ISOINIncomplete callback.
+ * @param hpcd: PCD handle
+ * @param epnum: Endpoint number
+ * @retval None
+ */
+void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+ USBD_LL_IsoINIncomplete((USBD_HandleTypeDef*)hpcd->pData, epnum);
+}
+
+/**
+ * @brief Connect callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
+{
+ USBD_LL_DevConnected((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/**
+ * @brief Disconnect callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
+{
+ USBD_LL_DevDisconnected((USBD_HandleTypeDef*)hpcd->pData);
+}
+
+/*******************************************************************************
+ LL Driver Interface (USB Device Library --> PCD)
+*******************************************************************************/
+
+/**
+ * @brief Initializes the low level portion of the device driver.
+ * @param pdev: Device handle
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_Init(USBD_HandleTypeDef *pdev)
+{
+ /* Init USB Ip. */
+ /* Link the driver to the stack. */
+ hpcd_USB_FS.pData = pdev;
+ pdev->pData = &hpcd_USB_FS;
+
+ hpcd_USB_FS.Instance = USB;
+ hpcd_USB_FS.Init.dev_endpoints = 8;
+ hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
+ hpcd_USB_FS.Init.ep0_mps = DEP0CTL_MPS_64;
+ 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;
+ if (HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK)
+ {
+ //_Error_Handler(__FILE__, __LINE__);
+ }
+
+ HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x00 , PCD_SNG_BUF, 0x18);
+ HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x80 , PCD_SNG_BUF, 0x58);
+ HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x81 , PCD_SNG_BUF, 0xC0);
+ HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x01 , PCD_SNG_BUF, 0x110);
+ HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x82 , PCD_SNG_BUF, 0x100);
+ return USBD_OK;
+}
+
+/**
+ * @brief De-Initializes the low level portion of the device driver.
+ * @param pdev: Device handle
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_DeInit(USBD_HandleTypeDef *pdev)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_DeInit(pdev->pData);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Starts the low level portion of the device driver.
+ * @param pdev: Device handle
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_Start(USBD_HandleTypeDef *pdev)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_Start(pdev->pData);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Stops the low level portion of the device driver.
+ * @param pdev: Device handle
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_Stop(USBD_HandleTypeDef *pdev)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_Stop(pdev->pData);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Opens an endpoint of the low level driver.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @param ep_type: Endpoint type
+ * @param ep_mps: Endpoint max packet size
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_OpenEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t ep_type, uint16_t ep_mps)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_EP_Open(pdev->pData, ep_addr, ep_mps, ep_type);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Closes an endpoint of the low level driver.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_CloseEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_EP_Close(pdev->pData, ep_addr);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Flushes an endpoint of the Low Level Driver.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_FlushEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_EP_Flush(pdev->pData, ep_addr);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Sets a Stall condition on an endpoint of the Low Level Driver.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_StallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_EP_SetStall(pdev->pData, ep_addr);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Clears a Stall condition on an endpoint of the Low Level Driver.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_ClearStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_EP_ClrStall(pdev->pData, ep_addr);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Returns Stall condition.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @retval Stall (1: Yes, 0: No)
+ */
+uint8_t USBD_LL_IsStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+ PCD_HandleTypeDef *hpcd = (PCD_HandleTypeDef*) pdev->pData;
+
+ if((ep_addr & 0x80) == 0x80)
+ {
+ return hpcd->IN_ep[ep_addr & 0x7F].is_stall;
+ }
+ else
+ {
+ return hpcd->OUT_ep[ep_addr & 0x7F].is_stall;
+ }
+}
+
+/**
+ * @brief Assigns a USB address to the device.
+ * @param pdev: Device handle
+ * @param dev_addr: Device address
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_SetUSBAddress(USBD_HandleTypeDef *pdev, uint8_t dev_addr)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_SetAddress(pdev->pData, dev_addr);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Transmits data over an endpoint.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @param pbuf: Pointer to data to be sent
+ * @param size: Data size
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_Transmit(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint16_t size)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Prepares an endpoint for reception.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @param pbuf: Pointer to data to be received
+ * @param size: Data size
+ * @retval USBD status
+ */
+USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, uint8_t ep_addr, uint8_t *pbuf, uint16_t size)
+{
+ HAL_StatusTypeDef hal_status = HAL_OK;
+ USBD_StatusTypeDef usb_status = USBD_OK;
+
+ hal_status = HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);
+
+ switch (hal_status) {
+ case HAL_OK :
+ usb_status = USBD_OK;
+ break;
+ case HAL_ERROR :
+ usb_status = USBD_FAIL;
+ break;
+ case HAL_BUSY :
+ usb_status = USBD_BUSY;
+ break;
+ case HAL_TIMEOUT :
+ usb_status = USBD_FAIL;
+ break;
+ default :
+ usb_status = USBD_FAIL;
+ break;
+ }
+ return usb_status;
+}
+
+/**
+ * @brief Returns the last transfered packet size.
+ * @param pdev: Device handle
+ * @param ep_addr: Endpoint number
+ * @retval Recived Data Size
+ */
+uint32_t USBD_LL_GetRxDataSize(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
+{
+ return HAL_PCD_EP_GetRxCount((PCD_HandleTypeDef*) pdev->pData, ep_addr);
+}
+
+/**
+ * @brief Delays routine for the USB device library.
+ * @param Delay: Delay in ms
+ * @retval None
+ */
+void USBD_LL_Delay(uint32_t Delay)
+{
+ HAL_Delay(Delay);
+}
+
+/**
+ * @brief Static single allocation.
+ * @param size: Size of allocated memory
+ * @retval None
+ */
+//void *USBD_static_malloc(uint32_t size)
+//{
+// static uint32_t mem[(sizeof(USBD_CDC_HandleTypeDef)/4)+1];/* On 32-bit boundary */
+// return mem;
+//}
+
+/**
+ * @brief Dummy memory free
+ * @param p: Pointer to allocated memory address
+ * @retval None
+ */
+void USBD_static_free(void *p)
+{
+
+}
+
+/* USER CODE BEGIN 5 */
+/**
+ * @brief Configures system clock after wake-up from USB Resume CallBack:
+ * enable HSI, PLL and select PLL as system clock source.
+ * @retval None
+ */
+//static void SystemClockConfig_Resume(void)
+//{
+// SystemClock_Config();
+//}
+/* USER CODE END 5 */
+
+/**
+ * @brief Software device connection
+ * @param hpcd: PCD handle
+ * @param state: Connection state (0: disconnected / 1: connected)
+ * @retval None
+ */
+void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state)
+{
+ /* USER CODE BEGIN 6 */
+ if (state == 1)
+ {
+ /* Configure Low connection state. */
+
+ }
+ else
+ {
+ /* Configure High connection state */
+
+ }
+ /* USER CODE END 6 */
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Src/usbd_desc.c b/fw/midi-dials/Src/usbd_desc.c
new file mode 100644
index 0000000..0304366
--- /dev/null
+++ b/fw/midi-dials/Src/usbd_desc.c
@@ -0,0 +1,365 @@
+/**
+ ******************************************************************************
+ * @file : usbd_desc.c
+ * @version : v2.0_Cube
+ * @brief : This file implements the USB device descriptors.
+ ******************************************************************************
+ * This notice applies to any and all portions of this file
+ * that are not between comment pairs USER CODE BEGIN and
+ * USER CODE END. Other portions of this file, whether
+ * inserted by the user or by software development tools
+ * are owned by their respective copyright owners.
+ *
+ * Copyright (c) 2018 STMicroelectronics International N.V.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted, provided that the following conditions are met:
+ *
+ * 1. Redistribution of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of other
+ * contributors to this software may be used to endorse or promote products
+ * derived from this software without specific written permission.
+ * 4. This software, including modifications and/or derivative works of this
+ * software, must execute solely and exclusively on microcontroller or
+ * microprocessor devices manufactured by or for STMicroelectronics.
+ * 5. Redistribution and use of this software other than as permitted under
+ * this license is void and will automatically terminate your rights under
+ * this license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
+ * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
+ * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_core.h"
+#include "usbd_desc.h"
+#include "usbd_conf.h"
+
+/* USER CODE BEGIN INCLUDE */
+
+/* USER CODE END INCLUDE */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+
+/* USER CODE BEGIN PV */
+/* Private variables ---------------------------------------------------------*/
+
+/* USER CODE END PV */
+
+/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
+ * @{
+ */
+
+/** @addtogroup USBD_DESC
+ * @{
+ */
+
+/** @defgroup USBD_DESC_Private_TypesDefinitions USBD_DESC_Private_TypesDefinitions
+ * @brief Private types.
+ * @{
+ */
+
+/* USER CODE BEGIN PRIVATE_TYPES */
+
+/* USER CODE END PRIVATE_TYPES */
+
+/**
+ * @}
+ */
+
+/** @defgroup USBD_DESC_Private_Defines USBD_DESC_Private_Defines
+ * @brief Private defines.
+ * @{
+ */
+
+/*
+ *************************************************[ATTENTION]************************************************
+ *
+ * VID 0x1209 and PID 0x0001 is experimental IDs from http://pid.codes .
+ * You must get your own IDs, and change to your own IDs in order to avoid conflicting to other USB devices.
+ *
+ ************************************************************************************************************
+*/
+
+#define USBD_VID 0x1209 //MUST BE CHANGED.
+#define USBD_LANGID_STRING 1041
+#define USBD_MANUFACTURER_STRING "Otter Scientific"
+#define USBD_PID_FS 0x0001 //MUST BE CHANGED.
+#define USBD_PRODUCT_STRING_FS "MIDI Dials"
+#define USBD_SERIALNUMBER_STRING_FS "00000000001A"
+#define USBD_CONFIGURATION_STRING_FS "MIDI Config"
+#define USBD_INTERFACE_STRING_FS "MIDI Interface"
+
+
+
+/* USER CODE BEGIN PRIVATE_DEFINES */
+
+/* USER CODE END PRIVATE_DEFINES */
+
+/**
+ * @}
+ */
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/** @defgroup USBD_DESC_Private_Macros USBD_DESC_Private_Macros
+ * @brief Private macros.
+ * @{
+ */
+
+/* USER CODE BEGIN PRIVATE_MACRO */
+
+/* USER CODE END PRIVATE_MACRO */
+
+/**
+ * @}
+ */
+
+/** @defgroup USBD_DESC_Private_FunctionPrototypes USBD_DESC_Private_FunctionPrototypes
+ * @brief Private functions declaration.
+ * @{
+ */
+
+uint8_t * USBD_FS_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+uint8_t * USBD_FS_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length);
+
+#ifdef USB_SUPPORT_USER_STRING_DESC
+uint8_t * USBD_FS_USRStringDesc(USBD_SpeedTypeDef speed, uint8_t idx, uint16_t *length);
+#endif /* USB_SUPPORT_USER_STRING_DESC */
+
+/**
+ * @}
+ */
+
+/** @defgroup USBD_DESC_Private_Variables USBD_DESC_Private_Variables
+ * @brief Private variables.
+ * @{
+ */
+
+USBD_DescriptorsTypeDef FS_Desc =
+{
+ USBD_FS_DeviceDescriptor
+, USBD_FS_LangIDStrDescriptor
+, USBD_FS_ManufacturerStrDescriptor
+, USBD_FS_ProductStrDescriptor
+, USBD_FS_SerialStrDescriptor
+, USBD_FS_ConfigStrDescriptor
+, USBD_FS_InterfaceStrDescriptor
+};
+
+#if defined ( __ICCARM__ ) /* IAR Compiler */
+ #pragma data_alignment=4
+#endif /* defined ( __ICCARM__ ) */
+/** USB standard device descriptor. */
+__ALIGN_BEGIN uint8_t USBD_FS_DeviceDesc[USB_LEN_DEV_DESC] __ALIGN_END =
+{
+ 0x12, /*bLength */
+ USB_DESC_TYPE_DEVICE, /*bDescriptorType*/
+ 0x00, /*bcdUSB */
+ 0x02,
+ 0x02, /*bDeviceClass*/
+ 0x02, /*bDeviceSubClass*/
+ 0x00, /*bDeviceProtocol*/
+ USB_MAX_EP0_SIZE, /*bMaxPacketSize*/
+ LOBYTE(USBD_VID), /*idVendor*/
+ HIBYTE(USBD_VID), /*idVendor*/
+ LOBYTE(USBD_PID_FS), /*idProduct*/
+ HIBYTE(USBD_PID_FS), /*idProduct*/
+ 0x00, /*bcdDevice rel. 2.00*/
+ 0x02,
+ USBD_IDX_MFC_STR, /*Index of manufacturer string*/
+ USBD_IDX_PRODUCT_STR, /*Index of product string*/
+ USBD_IDX_SERIAL_STR, /*Index of serial number string*/
+ USBD_MAX_NUM_CONFIGURATION /*bNumConfigurations*/
+};
+
+/* USB_DeviceDescriptor */
+
+/**
+ * @}
+ */
+
+/** @defgroup USBD_DESC_Private_Variables USBD_DESC_Private_Variables
+ * @brief Private variables.
+ * @{
+ */
+
+#if defined ( __ICCARM__ ) /* IAR Compiler */
+ #pragma data_alignment=4
+#endif /* defined ( __ICCARM__ ) */
+
+/** USB lang indentifier descriptor. */
+__ALIGN_BEGIN uint8_t USBD_LangIDDesc[USB_LEN_LANGID_STR_DESC] __ALIGN_END =
+{
+ USB_LEN_LANGID_STR_DESC,
+ USB_DESC_TYPE_STRING,
+ LOBYTE(USBD_LANGID_STRING),
+ HIBYTE(USBD_LANGID_STRING)
+};
+
+#if defined ( __ICCARM__ ) /* IAR Compiler */
+ #pragma data_alignment=4
+#endif /* defined ( __ICCARM__ ) */
+/* Internal string descriptor. */
+__ALIGN_BEGIN uint8_t USBD_StrDesc[USBD_MAX_STR_DESC_SIZ] __ALIGN_END;
+
+/**
+ * @}
+ */
+
+/** @defgroup USBD_DESC_Private_Functions USBD_DESC_Private_Functions
+ * @brief Private functions.
+ * @{
+ */
+
+/**
+ * @brief Return the device descriptor
+ * @param speed : Current device speed
+ * @param length : Pointer to data length variable
+ * @retval Pointer to descriptor buffer
+ */
+uint8_t * USBD_FS_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+ *length = sizeof(USBD_FS_DeviceDesc);
+ return USBD_FS_DeviceDesc;
+}
+
+/**
+ * @brief Return the LangID string descriptor
+ * @param speed : Current device speed
+ * @param length : Pointer to data length variable
+ * @retval Pointer to descriptor buffer
+ */
+uint8_t * USBD_FS_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+ *length = sizeof(USBD_LangIDDesc);
+ return USBD_LangIDDesc;
+}
+
+/**
+ * @brief Return the product string descriptor
+ * @param speed : Current device speed
+ * @param length : Pointer to data length variable
+ * @retval Pointer to descriptor buffer
+ */
+uint8_t * USBD_FS_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+ if(speed == 0)
+ {
+ USBD_GetString((uint8_t *)USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);
+ }
+ else
+ {
+ USBD_GetString((uint8_t *)USBD_PRODUCT_STRING_FS, USBD_StrDesc, length);
+ }
+ return USBD_StrDesc;
+}
+
+/**
+ * @brief Return the manufacturer string descriptor
+ * @param speed : Current device speed
+ * @param length : Pointer to data length variable
+ * @retval Pointer to descriptor buffer
+ */
+uint8_t * USBD_FS_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+ USBD_GetString((uint8_t *)USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
+ return USBD_StrDesc;
+}
+
+/**
+ * @brief Return the serial number string descriptor
+ * @param speed : Current device speed
+ * @param length : Pointer to data length variable
+ * @retval Pointer to descriptor buffer
+ */
+uint8_t * USBD_FS_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+ if(speed == USBD_SPEED_HIGH)
+ {
+ USBD_GetString((uint8_t *)USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);
+ }
+ else
+ {
+ USBD_GetString((uint8_t *)USBD_SERIALNUMBER_STRING_FS, USBD_StrDesc, length);
+ }
+ return USBD_StrDesc;
+}
+
+/**
+ * @brief Return the configuration string descriptor
+ * @param speed : Current device speed
+ * @param length : Pointer to data length variable
+ * @retval Pointer to descriptor buffer
+ */
+uint8_t * USBD_FS_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+ if(speed == USBD_SPEED_HIGH)
+ {
+ USBD_GetString((uint8_t *)USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length);
+ }
+ else
+ {
+ USBD_GetString((uint8_t *)USBD_CONFIGURATION_STRING_FS, USBD_StrDesc, length);
+ }
+ return USBD_StrDesc;
+}
+
+/**
+ * @brief Return the interface string descriptor
+ * @param speed : Current device speed
+ * @param length : Pointer to data length variable
+ * @retval Pointer to descriptor buffer
+ */
+uint8_t * USBD_FS_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
+{
+ if(speed == 0)
+ {
+ USBD_GetString((uint8_t *)USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
+ }
+ else
+ {
+ USBD_GetString((uint8_t *)USBD_INTERFACE_STRING_FS, USBD_StrDesc, length);
+ }
+ return USBD_StrDesc;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Src/usbd_midi_if.c b/fw/midi-dials/Src/usbd_midi_if.c
new file mode 100644
index 0000000..bbcbf97
--- /dev/null
+++ b/fw/midi-dials/Src/usbd_midi_if.c
@@ -0,0 +1,480 @@
+/**
+ ******************************************************************************
+ * @file : usbd_midi_if.c
+ * @brief :
+ ******************************************************************************
+
+ (CC at)2016 by D.F.Mac. @TripArts Music
+
+ ******************************************************************************
+
+ Modified by keshikan (www.keshikan.net) 2018
+ The license is (CC BY 4.0), and takes over from original usbd_midi_if.h/c.
+
+ See also original source code page.
+ https://github.com/mimuz/mimuz-tuch/blob/master/STM32/
+
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_midi_if.h"
+#include "stm32f0xx_hal.h"
+
+
+// basic midi rx/tx functions
+static uint16_t MIDI_DataRx(uint8_t *msg, uint16_t length);
+static uint16_t MIDI_DataTx(uint8_t *msg, uint16_t length);
+
+// for Cure Series
+#define MIDI_BUFFER_SIZ (512)//FIFO buffer byte size for midi message buffer
+
+RingBufferU8 rbuf_usb_rx[MIDI_OUT_JACK_NUM]; //for input from USB
+RingBufferU8 rbuf_jack_rx[MIDI_IN_JACK_NUM]; //for input from MIDI-IN jack
+
+//for receiving midi data from jack
+MidiAnalysisStatus analyzed_status[MIDI_IN_JACK_NUM];
+MIDIEvent midi_event[MIDI_IN_JACK_NUM]; //received midi data
+
+uint8_t rx_midi_msg[MIDI_IN_JACK_NUM];
+
+
+FUNC_STATUS midiInit()
+{
+ uint32_t i,j;
+
+ for(i=0; i<MIDI_OUT_JACK_NUM; i++){
+ if(BUFFER_SUCCESS != cureRingBufferU8Init(&rbuf_usb_rx[i], MIDI_BUFFER_SIZ))
+ {
+ return FUNC_ERROR;
+ }
+ }
+
+ for(i=0; i<MIDI_IN_JACK_NUM; i++){
+ if(BUFFER_SUCCESS != cureRingBufferU8Init(&rbuf_jack_rx[i], MIDI_BUFFER_SIZ))
+ {
+ return FUNC_ERROR;
+ }
+ }
+
+ //Init RX
+ for(i=0; i<MIDI_IN_JACK_NUM; i++){
+
+ rx_midi_msg[i] = 0x00;
+ analyzed_status[i].data_idx = 0;
+ midi_event[i].length = 0;
+
+ for(j=0; j<MIDI_SENDDATA_MAX; j++){
+ midi_event[i].midi_byte[j] = 0x00;
+ }
+ }
+
+ return FUNC_SUCCESS;
+}
+
+FUNC_STATUS midiGetFromUsbRx(uint8_t cable_num, uint8_t* dat)
+{
+ if(BUFFER_SUCCESS != cureRingBufferU8Dequeue(&rbuf_usb_rx[cable_num], dat))
+ {
+ return FUNC_ERROR;
+ }
+
+ return FUNC_SUCCESS;
+}
+
+FUNC_STATUS midiGetFromJackRx(uint8_t cable_num)
+{
+ if(BUFFER_SUCCESS != cureRingBufferU8Dequeue(&rbuf_jack_rx[cable_num], &rx_midi_msg[cable_num]))
+ {
+ return FUNC_ERROR;
+ }
+
+ return FUNC_SUCCESS;
+}
+
+FUNC_STATUS midiSetFromJackRx(uint8_t cable_num, uint8_t* dat)
+{
+ if(BUFFER_SUCCESS != cureRingBufferU8Enqueue(&rbuf_jack_rx[cable_num], dat))
+ {
+ return FUNC_ERROR;
+ }
+
+ return FUNC_SUCCESS;
+}
+
+
+bool isUsbRxBufEmpty(uint8_t cable_num)
+{
+ if( 0 != _cureRingBufferU8GetUsedSize(&rbuf_usb_rx[cable_num]) ){
+ return false;
+ }
+
+ return true;
+}
+
+bool isJackRxBufEmpty(uint8_t cable_num)
+{
+ if( 0 != _cureRingBufferU8GetUsedSize(&rbuf_jack_rx[cable_num]) ){
+ return false;
+ }
+
+ return true;
+}
+
+bool isRxBufEmpty()
+{
+ uint32_t i;
+
+ for(i=0; i<MIDI_OUT_JACK_NUM; i++){
+ if(0 != _cureRingBufferU8GetUsedSize(&rbuf_usb_rx[i]))
+ {
+ return false;
+ }
+ }
+
+ for(i=0; i<MIDI_IN_JACK_NUM; i++){
+ if(0 != _cureRingBufferU8GetUsedSize(&rbuf_jack_rx[i]))
+ {
+ return false;
+ }
+ }
+ return true;
+}
+
+
+USBD_MIDI_ItfTypeDef USBD_Interface_fops_FS =
+{
+ MIDI_DataRx,
+ MIDI_DataTx
+};
+
+
+static uint16_t MIDI_DataRx(uint8_t *msg, uint16_t length){
+ uint16_t cnt;
+ uint16_t msgs = length / 4;
+ uint16_t chk = length % 4;
+ uint8_t u8b;
+ uint8_t midi_size;
+
+ if(0 != chk)
+ {
+ return 0;
+ }
+
+ for(uint32_t cnt_msgs = 0; cnt_msgs < msgs; cnt_msgs++){
+
+ uint8_t cable_num = (msg[0 + 4*cnt_msgs] & 0xF0) >> 4;
+ uint8_t code_idx_num = msg[0 + 4*cnt_msgs] & 0x0F;
+
+ switch (code_idx_num) {
+
+ //not defined
+ case 0x0:
+ case 0x1:
+ midi_size = 0;
+ break;
+
+ //1byte message
+ case 0x5:
+ case 0xF:
+ midi_size = 1;
+ break;
+
+ //2byte message
+ case 0x2:
+ case 0x6:
+ case 0xC:
+ case 0xD:
+ midi_size = 2;
+ break;
+
+ //3byte message
+ case 0x3:
+ case 0x4:
+ case 0x7:
+ case 0x8:
+ case 0x9:
+ case 0xA:
+ case 0xB:
+ case 0xE:
+ midi_size = 3;
+ break;
+
+ default:
+ midi_size = 0;
+ break;
+ }
+
+ for(cnt = 0;cnt < midi_size;cnt ++){
+ u8b = *(msg + 4*cnt_msgs + cnt + 1);
+ cureRingBufferU8Enqueue(&rbuf_usb_rx[cable_num], &u8b);
+ }
+ }
+
+ return 0;
+}
+
+void sendMidiMessage(uint8_t *msg, uint16_t size){
+ if(size == 4){
+// APP_Rx_Buffer[0] = msg[0];
+// APP_Rx_Buffer[1] = msg[1];
+// APP_Rx_Buffer[2] = msg[2];
+// APP_Rx_Buffer[3] = msg[3];
+// USBD_MIDI_SendData(&hUsbDeviceFS, APP_Rx_Buffer, size);
+ MIDI_DataTx(msg, size);
+ }
+}
+
+static uint16_t MIDI_DataTx(uint8_t *msg, uint16_t length){
+ uint32_t i = 0;
+ while (i < length) {
+ APP_Rx_Buffer[APP_Rx_ptr_in] = *(msg + i);
+ APP_Rx_ptr_in++;
+ i++;
+ if (APP_Rx_ptr_in == APP_RX_DATA_SIZE) {
+ APP_Rx_ptr_in = 0;
+ }
+ }
+ return USBD_OK;
+}
+
+bool midiEventIsGenerated(uint8_t cable_num)
+{
+ uint8_t upper_half_byte= (rx_midi_msg[cable_num]) & 0xF0;
+
+ if( upper_half_byte & 0x80 ){//0x80-0xFF:status byte
+
+ switch(upper_half_byte){
+
+ case 0xF0://0xF0-0xFF:system message
+ switch(rx_midi_msg[cable_num]){
+
+ case 0xF0://SysEx Start
+ analyzed_status[cable_num].data_idx = 0;
+ midi_event[cable_num].midi_byte[ analyzed_status[cable_num].data_idx++ ] = rx_midi_msg[cable_num];
+ analyzed_status[cable_num].type = MSG_SYSEX;
+ analyzed_status[cable_num].stat = WAIT_SYSTEM_DATA;
+ break;
+
+ case 0xF7://SysEx End
+ midi_event[cable_num].midi_byte[ analyzed_status[cable_num].data_idx++ ] = rx_midi_msg[cable_num];
+ midi_event[cable_num].length = analyzed_status[cable_num].data_idx;
+ analyzed_status[cable_num].stat = END_ANALYSIS;
+ break;
+
+ case 0xF2://Song Position
+ midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+ analyzed_status[cable_num].type = MSG_THREE_BYTE;
+ analyzed_status[cable_num].stat = WAIT_DATA1;
+ break;
+
+ case 0xF1://Time Code
+ case 0xF3://Song Select
+ midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+ analyzed_status[cable_num].type = MSG_TWO_BYTE;
+ analyzed_status[cable_num].stat = WAIT_DATA1;
+ break;
+
+ case 0xF4://Undefined
+ case 0xF5://Undefined
+ case 0xF6://Tune request
+ case 0xF8://Timing clock
+ case 0xF9://Undefined
+ case 0xFA://Start
+ case 0xFB://Continue
+ case 0xFC://Stop
+ case 0xFD://Undefined
+ case 0xFE://Active Sensing
+ case 0xFF://Reset
+ midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+ midi_event[cable_num].length = 1;
+ analyzed_status[cable_num].type = MSG_ONE_BYTE;
+ analyzed_status[cable_num].stat = END_ANALYSIS;
+ break;
+ }
+ analyzed_status[cable_num].is_system_common = true;
+ break;
+
+ case 0x80://Note Off
+ case 0x90://Note On
+ case 0xA0://Polyphonic key-pressure
+ case 0xB0://ControlChange
+ case 0xE0://PitchBend
+ midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+ analyzed_status[cable_num].type = MSG_THREE_BYTE;
+ analyzed_status[cable_num].stat = WAIT_DATA1;
+ analyzed_status[cable_num].is_system_common = false;
+ break;
+
+ case 0xC0://Program Change
+ case 0xD0://Channel pressure
+ midi_event[cable_num].midi_byte[0] = rx_midi_msg[cable_num];
+ analyzed_status[cable_num].type = MSG_TWO_BYTE;
+ analyzed_status[cable_num].stat = WAIT_DATA1;
+ analyzed_status[cable_num].is_system_common = false;
+ break;
+
+ default:
+ analyzed_status[cable_num].type = MSG_NOTHING;
+ analyzed_status[cable_num].stat = START_ANALYSIS;
+ analyzed_status[cable_num].is_system_common = false;
+ break;
+ }
+
+ }else{//0x00-0x7F:data byte
+
+ switch(analyzed_status[cable_num].stat){
+
+ case WAIT_DATA1:
+ midi_event[cable_num].midi_byte[1] = rx_midi_msg[cable_num];
+
+ if(MSG_THREE_BYTE == analyzed_status[cable_num].type ){
+ analyzed_status[cable_num].stat = WAIT_DATA2;
+ }else if( MSG_TWO_BYTE == analyzed_status[cable_num].type ){
+ midi_event[cable_num].length = 2;
+ analyzed_status[cable_num].stat = END_ANALYSIS;
+ }else{
+ analyzed_status[cable_num].stat = START_ANALYSIS;
+ }
+ break;
+
+ case WAIT_DATA2:
+ if(MSG_THREE_BYTE == analyzed_status[cable_num].type ){
+ midi_event[cable_num].midi_byte[2] = rx_midi_msg[cable_num];
+ midi_event[cable_num].length = 3;
+ analyzed_status[cable_num].stat = END_ANALYSIS;
+ }else{
+ analyzed_status[cable_num].stat = START_ANALYSIS;
+ }
+ break;
+
+ case WAIT_SYSTEM_DATA:
+ midi_event[cable_num].midi_byte[ analyzed_status[cable_num].data_idx++ ] = rx_midi_msg[cable_num];
+
+ if(analyzed_status[cable_num].data_idx > (MIDI_SENDDATA_MAX - 1) ){
+ analyzed_status[cable_num].stat = END_ANALYSIS;
+ }
+ break;
+
+ case END_ANALYSIS://running status:When status byte is omitted.
+ midi_event[cable_num].midi_byte[1] = rx_midi_msg[cable_num];
+ if(MSG_THREE_BYTE == analyzed_status[cable_num].type){
+ analyzed_status[cable_num].stat = WAIT_DATA2;
+ }else if(MSG_TWO_BYTE == analyzed_status[cable_num].type){
+ midi_event[cable_num].length = 2;
+ analyzed_status[cable_num].stat = END_ANALYSIS;
+ }
+ break;
+
+ case START_ANALYSIS:
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if(END_ANALYSIS == analyzed_status[cable_num].stat){
+ return true;
+ }else{
+ return false;
+ }
+
+}
+
+
+void midiGenerateUsbPacket(uint8_t cable_num)
+{
+ uint8_t msg_buf[4] = {0x00,0x00,0x00,0x00};
+ uint32_t cnt_remain=0, cnt_length;
+
+ switch(analyzed_status[cable_num].type){
+
+ case MSG_ONE_BYTE:
+ //byte 0: cable number + code index number
+ msg_buf[0] = (cable_num << 4) + ((midi_event[cable_num].midi_byte[0] & 0xF0) >> 4);
+
+ sendMidiMessage(msg_buf,4);
+ break;
+
+ case MSG_TWO_BYTE:
+ case MSG_THREE_BYTE:
+ //byte 0: cable number + code index number
+ if(analyzed_status[cable_num].is_system_common){
+ msg_buf[0] = (cable_num << 4) + midi_event[cable_num].length;
+ }else{
+ msg_buf[0] = (cable_num << 4) + ((midi_event[cable_num].midi_byte[0] & 0xF0) >> 4);
+ }
+
+ //byte 1-3
+ for(uint32_t i=0; i<midi_event[cable_num].length; i++){
+ msg_buf[i+1] = midi_event[cable_num].midi_byte[i];
+ }
+
+ sendMidiMessage(msg_buf,4);
+ break;
+
+ case MSG_SYSEX:
+ for(cnt_length = 0; cnt_length < midi_event[cable_num].length; cnt_length++){
+ if( 0xF7 !=midi_event[cable_num].midi_byte[cnt_length] ){
+ if(2 == cnt_remain){
+ msg_buf[3] = midi_event[cable_num].midi_byte[cnt_length];
+ msg_buf[0] = (cable_num << 4) + 0x4; //SysEx starts or continues
+ sendMidiMessage(msg_buf,4);
+ }else{
+ msg_buf[1 + cnt_remain] = midi_event[cable_num].midi_byte[cnt_length];
+ }
+
+
+ }else{
+
+ switch (cnt_remain) {
+ case 0:
+ msg_buf[0] = (cable_num << 4) + 0x5; //SysEx ends with following single byte
+ msg_buf[1] = 0xF7;
+ msg_buf[2] = msg_buf[3] = 0x00;
+ sendMidiMessage(msg_buf,4);
+ break;
+
+ case 1:
+ msg_buf[0] = (cable_num << 4) + 0x6; //SysEx ends with following two bytes.
+ msg_buf[2] = 0xF7;
+ msg_buf[3] = 0x00;
+ sendMidiMessage(msg_buf,4);
+ break;
+
+ case 2:
+ msg_buf[0] = (cable_num << 4) + 0x7; //SysEx ends with following three bytes.
+ msg_buf[3] = 0xF7;
+ sendMidiMessage(msg_buf,4);
+ break;
+ default:
+ break;
+ }
+ }
+
+ cnt_remain++;
+ if(cnt_remain >=3){
+ cnt_remain = 0;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+ USBD_MIDI_SendPacket();
+}
+
+void midiProcess(){
+
+ for(uint32_t cable_num=0; cable_num<MIDI_IN_JACK_NUM; cable_num++){
+ while( FUNC_SUCCESS == midiGetFromJackRx(cable_num) ){
+ if( midiEventIsGenerated(cable_num) ){// Generate MIDI event from UART buffer.
+ //Analyze MIDI Message.
+ midiGenerateUsbPacket(cable_num);
+ }
+ }
+ }
+}
+