214 lines
6.1 KiB
C
214 lines
6.1 KiB
C
/*
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* Copyright (c) 2024, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "usbd_core.h"
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#include "usb_midi.h"
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#define MIDI_OUT_EP 0x02
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#define MIDI_IN_EP 0x81
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#define USBD_VID 0x0d28
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#define USBD_PID 0x0404
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#define USBD_MAX_POWER 100
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#define USBD_LANGID_STRING 1033
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#define USB_CONFIG_SIZE (9 + 9 + 9 + 9 + 7 + MIDI_SIZEOF_JACK_DESC + 9 + 5 + 9 + 5)
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#ifdef CONFIG_USB_HS
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#define MIDI_EP_MPS 512
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#else
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#define MIDI_EP_MPS 64
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#endif
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const uint8_t midi_descriptor[] = {
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USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0100, 0x01),
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USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
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// Standard AC Interface Descriptor
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0x09,
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0x04,
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0x00,
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0x00,
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0x00,
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0x01,
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0x01,
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0x00,
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0x00,
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// Class-specific AC Interface Descriptor
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0x09,
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0x24,
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0x01,
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0x00,
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0x01,
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0x09,
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0x00,
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0x01,
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0x01,
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// MIDIStreaming Interface Descriptors
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0x09,
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0x04,
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0x01,
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0x00,
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0x02,
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0x01,
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0x03,
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0x00,
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0x00,
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// Class-Specific MS Interface Header Descriptor
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0x07,
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0x24,
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0x01,
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0x00,
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0x01,
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WBVAL(65),
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// MIDI_IN_JACK_DESCRIPTOR_INIT(MIDI_JACK_TYPE_EMBEDDED, 0x01),
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// MIDI_IN_JACK_DESCRIPTOR_INIT(MIDI_JACK_TYPE_EXTERNAL, 0x02),
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// MIDI_OUT_JACK_DESCRIPTOR_INIT(MIDI_JACK_TYPE_EMBEDDED, 0x03, 0x02),
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// MIDI_OUT_JACK_DESCRIPTOR_INIT(MIDI_JACK_TYPE_EXTERNAL, 0x04, 0x01),
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MIDI_JACK_DESCRIPTOR_INIT(0x01),
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// OUT endpoint descriptor
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0x09, 0x05, MIDI_OUT_EP, 0x02, WBVAL(MIDI_EP_MPS), 0x00, 0x00, 0x00,
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0x05, 0x25, 0x01, 0x01, 0x01,
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// IN endpoint descriptor
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0x09, 0x05, MIDI_IN_EP, 0x02, WBVAL(MIDI_EP_MPS), 0x00, 0x00, 0x00,
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0x05, 0x25, 0x01, 0x01, 0x03,
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///////////////////////////////////////
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/// string0 descriptor
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///////////////////////////////////////
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USB_LANGID_INIT(USBD_LANGID_STRING),
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///////////////////////////////////////
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/// string1 descriptor
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///////////////////////////////////////
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0x14, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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///////////////////////////////////////
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/// string2 descriptor
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///////////////////////////////////////
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0x28, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'C', 0x00, /* wcChar0 */
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'h', 0x00, /* wcChar1 */
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'e', 0x00, /* wcChar2 */
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'r', 0x00, /* wcChar3 */
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'r', 0x00, /* wcChar4 */
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'y', 0x00, /* wcChar5 */
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'U', 0x00, /* wcChar6 */
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'S', 0x00, /* wcChar7 */
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'B', 0x00, /* wcChar8 */
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' ', 0x00, /* wcChar9 */
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'M', 0x00, /* wcChar10 */
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'I', 0x00, /* wcChar11 */
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'D', 0x00, /* wcChar12 */
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'I', 0x00, /* wcChar13 */
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' ', 0x00, /* wcChar14 */
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'D', 0x00, /* wcChar15 */
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'E', 0x00, /* wcChar16 */
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'M', 0x00, /* wcChar17 */
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'O', 0x00, /* wcChar18 */
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///////////////////////////////////////
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/// string3 descriptor
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///////////////////////////////////////
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0x16, /* bLength */
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USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
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'2', 0x00, /* wcChar0 */
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'0', 0x00, /* wcChar1 */
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'2', 0x00, /* wcChar2 */
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'1', 0x00, /* wcChar3 */
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'0', 0x00, /* wcChar4 */
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'3', 0x00, /* wcChar5 */
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'1', 0x00, /* wcChar6 */
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'0', 0x00, /* wcChar7 */
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'0', 0x00, /* wcChar8 */
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'0', 0x00, /* wcChar9 */
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#ifdef CONFIG_USB_HS
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///////////////////////////////////////
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/// device qualifier descriptor
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///////////////////////////////////////
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0x0a,
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USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
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0x00,
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0x02,
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0x02,
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0x02,
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0x01,
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0x40,
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0x01,
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0x00,
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#endif
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0x00
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};
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t read_buffer[MIDI_EP_MPS];
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t write_buffer[MIDI_EP_MPS];
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static void usbd_event_handler(uint8_t busid, uint8_t event)
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{
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switch (event) {
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case USBD_EVENT_RESET:
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break;
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case USBD_EVENT_CONNECTED:
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break;
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case USBD_EVENT_DISCONNECTED:
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break;
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case USBD_EVENT_RESUME:
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break;
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case USBD_EVENT_SUSPEND:
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break;
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case USBD_EVENT_CONFIGURED:
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usbd_ep_start_read(busid, MIDI_OUT_EP, read_buffer, MIDI_EP_MPS);
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break;
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case USBD_EVENT_SET_REMOTE_WAKEUP:
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break;
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case USBD_EVENT_CLR_REMOTE_WAKEUP:
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break;
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default:
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break;
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}
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}
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void usbd_midi_bulk_out(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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usbd_ep_start_read(busid, MIDI_OUT_EP, read_buffer, MIDI_EP_MPS);
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}
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void usbd_midi_bulk_in(uint8_t busid, uint8_t ep, uint32_t nbytes)
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{
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}
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struct usbd_interface intf0;
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struct usbd_interface intf1;
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struct usbd_endpoint midi_out_ep = {
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.ep_addr = MIDI_OUT_EP,
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.ep_cb = usbd_midi_bulk_out
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};
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struct usbd_endpoint midi_in_ep = {
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.ep_addr = MIDI_IN_EP,
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.ep_cb = usbd_midi_bulk_in
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};
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void midi_init(uint8_t busid, uintptr_t reg_base)
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{
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usbd_desc_register(busid, midi_descriptor);
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usbd_add_interface(busid, &intf0);
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usbd_add_interface(busid, &intf1);
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usbd_add_endpoint(busid, &midi_out_ep);
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usbd_add_endpoint(busid, &midi_in_ep);
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usbd_initialize(busid, reg_base, usbd_event_handler);
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} |