diff options
Diffstat (limited to 'fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c')
| -rw-r--r-- | fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c b/fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c new file mode 100644 index 0000000..b43229c --- /dev/null +++ b/fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c @@ -0,0 +1,199 @@ +/**
+ ******************************************************************************
+ * @file usbd_midi.c
+ ******************************************************************************
+
+ (CC at)2016 by D.F.Mac. @TripArts Music
+
+*/
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_midi.h"
+#include "usbd_desc.h"
+#include "stm32f0xx_hal_conf.h"
+#include "usbd_ctlreq.h"
+#include "stm32f0xx_hal.h"
+
+static uint8_t USBD_MIDI_Init (USBD_HandleTypeDef *pdev, uint8_t cfgidx);
+static uint8_t USBD_MIDI_DeInit (USBD_HandleTypeDef *pdev, uint8_t cfgidx);
+static uint8_t USBD_MIDI_DataIn (USBD_HandleTypeDef *pdev, uint8_t epnum);
+static uint8_t USBD_MIDI_DataOut (USBD_HandleTypeDef *pdev, uint8_t epnum);
+
+static uint8_t *USBD_MIDI_GetCfgDesc (uint16_t *length);
+//uint8_t *USBD_MIDI_GetDeviceQualifierDescriptor (uint16_t *length);
+USBD_HandleTypeDef *pInstance = NULL;
+
+uint32_t APP_Rx_ptr_in = 0;
+uint32_t APP_Rx_ptr_out = 0;
+uint32_t APP_Rx_length = 0;
+uint8_t USB_Tx_State = 0;
+
+__ALIGN_BEGIN uint8_t USB_Rx_Buffer[MIDI_DATA_OUT_PACKET_SIZE] __ALIGN_END ;
+__ALIGN_BEGIN uint8_t APP_Rx_Buffer[APP_RX_DATA_SIZE] __ALIGN_END ;
+
+/* USB Standard Device Descriptor */
+/*
+__ALIGN_BEGIN static uint8_t USBD_MIDI_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END =
+{
+ USB_LEN_DEV_QUALIFIER_DESC,
+ USB_DESC_TYPE_DEVICE_QUALIFIER,
+ 0x00,
+ 0x02,
+ 0x00,
+ 0x00,
+ 0x00,
+ 0x40,
+ 0x01,
+ 0x00,
+};
+*/
+
+/* USB MIDI interface class callbacks structure */
+USBD_ClassTypeDef USBD_MIDI =
+{
+ USBD_MIDI_Init,
+ USBD_MIDI_DeInit,
+ NULL,
+ NULL,
+ NULL,
+ USBD_MIDI_DataIn,
+ USBD_MIDI_DataOut,
+ NULL,
+ NULL,
+ NULL,
+ NULL,// HS
+ USBD_MIDI_GetCfgDesc,// FS
+ NULL,// OTHER SPEED
+ NULL,// DEVICE_QUALIFIER
+};
+
+/* USB MIDI device Configuration Descriptor */
+__ALIGN_BEGIN uint8_t USBD_MIDI_CfgDesc[USB_MIDI_CONFIG_DESC_SIZ] __ALIGN_END =
+{
+ // configuration descriptor
+ 0x09, 0x02, 0x65 + 6+6+9+9+1+1, 0x00, 0x02, 0x01, 0x00, 0x80, 0x0A,
+
+ // The Audio Interface Collection
+ 0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor
+ 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor
+ 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors
+ 0x07, 0x24, 0x01, 0x00, 0x01, 0x25 + 6+6+9+9, 0x00, // Class-Specific MS Interface Header Descriptor
+
+ // MIDI IN JACKS
+ 0x06, 0x24, 0x02, 0x01, 0x01, 0x00,//MIDI-IN 1 (embedded)
+ 0x06, 0x24, 0x02, 0x02, 0x02, 0x00,//MIDI-IN 1 (external)
+
+ 0x06, 0x24, 0x02, 0x01, 0x11, 0x00,//MIDI-IN 2 (embedded)
+ 0x06, 0x24, 0x02, 0x02, 0x12, 0x00,//MIDI-IN 2 (external)
+
+ // MIDI OUT JACKS
+ 0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00,//MIDI-OUT 1 (embedded)
+ 0x09, 0x24, 0x03, 0x02, 0x04, 0x01, 0x01, 0x01, 0x00,//MIDI-OUT 1 (external)
+
+ 0x09, 0x24, 0x03, 0x01, 0x13, 0x01, 0x12, 0x01, 0x00,//MIDI-OUT 2 (embedded)
+ 0x09, 0x24, 0x03, 0x02, 0x14, 0x01, 0x11, 0x01, 0x00,//MIDI-OUT 2 (external)
+
+ // OUT endpoint descriptor
+ 0x09, 0x05, MIDI_OUT_EP, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
+ 0x06, 0x25, 0x01, 0x02, 0x01, 0x11,
+
+ // IN endpoint descriptor
+ 0x09, 0x05, MIDI_IN_EP, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
+ 0x06, 0x25, 0x01, 0x02, 0x03, 0x13,
+};
+
+static uint8_t USBD_MIDI_Init(USBD_HandleTypeDef *pdev, uint8_t cfgidx){
+ pInstance = pdev;
+ USBD_LL_OpenEP(pdev,MIDI_IN_EP,USBD_EP_TYPE_BULK,MIDI_DATA_IN_PACKET_SIZE);
+ USBD_LL_OpenEP(pdev,MIDI_OUT_EP,USBD_EP_TYPE_BULK,MIDI_DATA_OUT_PACKET_SIZE);
+ USBD_LL_PrepareReceive(pdev,MIDI_OUT_EP,(uint8_t*)(USB_Rx_Buffer),MIDI_DATA_OUT_PACKET_SIZE);
+ return 0;
+}
+
+static uint8_t USBD_MIDI_DeInit (USBD_HandleTypeDef *pdev, uint8_t cfgidx){
+ pInstance = NULL;
+ USBD_LL_CloseEP(pdev,MIDI_IN_EP);
+ USBD_LL_CloseEP(pdev,MIDI_OUT_EP);
+ return 0;
+}
+
+static uint8_t USBD_MIDI_DataIn (USBD_HandleTypeDef *pdev, uint8_t epnum){
+
+ if (USB_Tx_State == 1){
+ USB_Tx_State = 0;
+ }
+ return USBD_OK;
+}
+
+static uint8_t USBD_MIDI_DataOut (USBD_HandleTypeDef *pdev, uint8_t epnum)
+{
+ uint16_t USB_Rx_Cnt;
+
+ USBD_MIDI_ItfTypeDef *pmidi;
+ pmidi = (USBD_MIDI_ItfTypeDef *)(pdev->pUserData);
+
+ USB_Rx_Cnt = ((PCD_HandleTypeDef*)pdev->pData)->OUT_ep[epnum].xfer_count;
+
+ pmidi->pIf_MidiRx((uint8_t *)&USB_Rx_Buffer, USB_Rx_Cnt);
+
+ USBD_LL_PrepareReceive(pdev,MIDI_OUT_EP,(uint8_t*)(USB_Rx_Buffer),MIDI_DATA_OUT_PACKET_SIZE);
+ return USBD_OK;
+}
+
+void USBD_MIDI_SendPacket (){
+ uint16_t USB_Tx_ptr;
+ uint16_t USB_Tx_length;
+
+ if(USB_Tx_State != 1){
+ if (APP_Rx_ptr_out == APP_RX_DATA_SIZE){
+ APP_Rx_ptr_out = 0;
+ }
+
+ if(APP_Rx_ptr_out == APP_Rx_ptr_in){
+ USB_Tx_State = 0;
+ return;
+ }
+
+ if(APP_Rx_ptr_out > APP_Rx_ptr_in){
+ APP_Rx_length = APP_RX_DATA_SIZE - APP_Rx_ptr_out;
+ }else{
+ APP_Rx_length = APP_Rx_ptr_in - APP_Rx_ptr_out;
+ }
+
+ if (APP_Rx_length > MIDI_DATA_IN_PACKET_SIZE){
+ USB_Tx_ptr = APP_Rx_ptr_out;
+ USB_Tx_length = MIDI_DATA_IN_PACKET_SIZE;
+ APP_Rx_ptr_out += MIDI_DATA_IN_PACKET_SIZE;
+ APP_Rx_length -= MIDI_DATA_IN_PACKET_SIZE;
+ }else{
+ USB_Tx_ptr = APP_Rx_ptr_out;
+ USB_Tx_length = APP_Rx_length;
+ APP_Rx_ptr_out += APP_Rx_length;
+ APP_Rx_length = 0;
+ }
+ USB_Tx_State = 1;
+ USBD_LL_Transmit (pInstance, MIDI_IN_EP,(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],USB_Tx_length);
+ }
+}
+
+static uint8_t *USBD_MIDI_GetCfgDesc (uint16_t *length){
+ *length = sizeof (USBD_MIDI_CfgDesc);
+ return USBD_MIDI_CfgDesc;
+}
+
+//uint8_t *USBD_MIDI_GetDeviceQualifierDescriptor (uint16_t *length){
+// *length = sizeof (USBD_MIDI_DeviceQualifierDesc);
+// return USBD_MIDI_DeviceQualifierDesc;
+//}
+
+uint8_t USBD_MIDI_RegisterInterface(USBD_HandleTypeDef *pdev, USBD_MIDI_ItfTypeDef *fops)
+{
+ uint8_t ret = USBD_FAIL;
+
+ if(fops != NULL){
+ pdev->pUserData= fops;
+ ret = USBD_OK;
+ }
+
+ return ret;
+}
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