1 files changed, 137 insertions, 0 deletions
diff --git a/src/class/midi/midi_host.h b/src/class/midi/midi_host.h
new file mode 100644
index 000000000..fc661939a
--- /dev/null
+++ b/src/class/midi/midi_host.h
@@ -0,0 +1,137 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#ifndef _TUSB_MIDI_HOST_H_
+#define _TUSB_MIDI_HOST_H_
+
+#include "class/audio/audio.h"
+#include "midi.h"
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// Class Driver Configuration
+//--------------------------------------------------------------------+
+
+// TODO Highspeed bulk transfer can be up to 512 bytes
+#ifndef CFG_TUH_HID_EPIN_BUFSIZE
+#define CFG_TUH_HID_EPIN_BUFSIZE 64
+#endif
+
+#ifndef CFG_TUH_HID_EPOUT_BUFSIZE
+#define CFG_TUH_HID_EPOUT_BUFSIZE 64
+#endif
+
+
+//--------------------------------------------------------------------+
+// Application API (Single Interface)
+//--------------------------------------------------------------------+
+bool     tuh_midi_configured      (uint8_t dev_addr);
+uint32_t tuh_midi_available    (uint8_t dev_addr);
+
+// return the number of virtual midi cables on the device's OUT endpoint
+uint8_t tuh_midih_get_num_tx_cables (uint8_t dev_addr);
+
+// return the number of virtual midi cables on the device's IN endpoint
+uint8_t tuh_midih_get_num_rx_cables (uint8_t dev_addr);
+
+// request available data from the device. tuh_midi_message_received_cb() will
+// be called if the device has any data to send. Otherwise, the device will
+// respond NAK. This function blocks until the transfer completes or the
+// devices sends NAK.
+// This function will return false if the hardware is busy.
+bool tuh_midi_read_poll( uint8_t dev_addr );
+
+// Queue a packet to the device. The application
+// must call tuh_midi_stream_flush to actually have the
+// data go out. It is up to the application to properly
+// format this packet; this function does not check.
+// Returns true if the packet was successfully queued.
+bool tuh_midi_packet_write (uint8_t dev_addr, uint8_t const packet[4]);
+
+// Queue a message to the device. The application
+// must call tuh_midi_stream_flush to actually have the
+// data go out.
+uint32_t tuh_midi_stream_write (uint8_t dev_addr, uint8_t cable_num, uint8_t const* p_buffer, uint32_t bufsize);
+
+// Send any queued packets to the device if the host hardware is able to do it
+// Returns the number of bytes flushed to the host hardware or 0 if
+// the host hardware is busy or there is nothing in queue to send.
+uint32_t tuh_midi_stream_flush( uint8_t dev_addr);
+
+// Get the MIDI stream from the device. Set the value pointed
+// to by p_cable_num to the MIDI cable number intended to receive it.
+// The MIDI stream will be stored in the buffer pointed to by p_buffer.
+// Return the number of bytes added to the buffer.
+// Note that this function ignores the CIN field of the MIDI packet
+// because a number of commercial devices out there do not encode
+// it properly.
+uint32_t tuh_midi_stream_read (uint8_t dev_addr, uint8_t *p_cable_num, uint8_t *p_buffer, uint16_t bufsize);
+
+// Read a raw MIDI packet from the connected device
+// This function does not parse the packet format
+// Return true if a packet was returned
+bool tuh_midi_packet_read (uint8_t dev_addr, uint8_t packet[4]);
+
+uint8_t tuh_midi_get_num_rx_cables(uint8_t dev_addr);
+uint8_t tuh_midi_get_num_tx_cables(uint8_t dev_addr);
+#if CFG_MIDI_HOST_DEVSTRINGS
+uint8_t tuh_midi_get_rx_cable_istrings(uint8_t dev_addr, uint8_t* istrings, uint8_t max_istrings);
+uint8_t tuh_midi_get_tx_cable_istrings(uint8_t dev_addr, uint8_t* istrings, uint8_t max_istrings);
+uint8_t tuh_midi_get_all_istrings(uint8_t dev_addr, const uint8_t** istrings);
+#endif
+//--------------------------------------------------------------------+
+// Internal Class Driver API
+//--------------------------------------------------------------------+
+void midih_init       (void);
+bool midih_open       (uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t max_len);
+bool midih_set_config (uint8_t dev_addr, uint8_t itf_num);
+bool midih_xfer_cb    (uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
+void midih_close      (uint8_t dev_addr);
+
+//--------------------------------------------------------------------+
+// Callbacks (Weak is optional)
+//--------------------------------------------------------------------+
+
+// Invoked when device with MIDI interface is mounted.
+// If the MIDI host application requires MIDI IN, it should requst an
+// IN transfer here. The device will likely NAK this transfer. How the driver
+// handles the NAK is hardware dependent.
+TU_ATTR_WEAK void tuh_midi_mount_cb(uint8_t dev_addr, uint8_t in_ep, uint8_t out_ep, uint8_t num_cables_rx, uint16_t num_cables_tx);
+
+// Invoked when device with MIDI interface is un-mounted
+// For now, the instance parameter is always 0 and can be ignored
+TU_ATTR_WEAK void tuh_midi_umount_cb(uint8_t dev_addr, uint8_t instance);
+
+TU_ATTR_WEAK void tuh_midi_rx_cb(uint8_t dev_addr, uint32_t num_packets);
+TU_ATTR_WEAK void tuh_midi_tx_cb(uint8_t dev_addr);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _TUSB_MIDI_HOST_H_ */