diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/class/midi/midi_host.c | 102 | ||||
| -rw-r--r-- | src/class/midi/midi_host.h | 59 |
2 files changed, 97 insertions, 64 deletions
diff --git a/src/class/midi/midi_host.c b/src/class/midi/midi_host.c index b6ebaa7a9..55146accb 100644 --- a/src/class/midi/midi_host.c +++ b/src/class/midi/midi_host.c @@ -47,13 +47,14 @@ typedef struct { uint8_t num_cables_rx; // IN endpoint CS descriptor bNumEmbMIDIJack value uint8_t num_cables_tx; // OUT endpoint CS descriptor bNumEmbMIDIJack value + #if CFG_TUH_MIDI_STREAM_API // For Stream read()/write() API // Messages are always 4 bytes long, queue them for reading and writing so the // callers can use the Stream interface with single-byte read/write calls. midi_driver_stream_t stream_write; midi_driver_stream_t stream_read; + #endif - /*------------- From this point, data is not cleared by bus reset -------------*/ // Endpoint stream struct { tu_edpt_stream_t tx; @@ -433,6 +434,57 @@ bool tuh_midi_configured(uint8_t dev_addr) { return p_midi_host->configured; } +uint8_t tuh_midi_get_num_tx_cables (uint8_t dev_addr) { + midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); + TU_VERIFY(p_midi_host != NULL, 0); + TU_VERIFY(p_midi_host->ep_stream.tx.ep_addr != 0, 0); + return p_midi_host->num_cables_tx; +} + +uint8_t tuh_midi_get_num_rx_cables (uint8_t dev_addr) { + midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); + TU_VERIFY(p_midi_host != NULL, 0); + TU_VERIFY(p_midi_host->ep_stream.rx.ep_addr != 0, 0); + return p_midi_host->num_cables_rx; +} + +uint32_t tuh_midi_read_available(uint8_t dev_addr) { + midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); + TU_VERIFY(p_midi_host != NULL); + return tu_edpt_stream_read_available(&p_midi_host->ep_stream.rx); +} + +uint32_t tuh_midi_write_flush(uint8_t dev_addr) { + midih_interface_t *p_midi = find_midi_by_daddr(dev_addr); + TU_VERIFY(p_midi != NULL); + return tu_edpt_stream_write_xfer(p_midi->dev_addr, &p_midi->ep_stream.tx); +} + +//--------------------------------------------------------------------+ +// Packet API +//--------------------------------------------------------------------+ + +uint32_t tuh_midi_packet_read_n(uint8_t dev_addr, uint8_t* buffer, uint32_t bufsize) { + midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); + TU_VERIFY(p_midi_host != NULL); + + uint32_t count4 = tu_min32(bufsize, tu_edpt_stream_read_available(&p_midi_host->ep_stream.rx)); + count4 = tu_align4(count4); // round down to multiple of 4 + TU_VERIFY(count4 > 0, 0); + return tu_edpt_stream_read(dev_addr, &p_midi_host->ep_stream.rx, buffer, count4); +} + +uint32_t tuh_midi_packet_write_n(uint8_t dev_addr, const uint8_t* buffer, uint32_t bufsize) { + midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); + TU_VERIFY(p_midi_host != NULL, 0); + uint32_t bufsize4 = tu_align4(bufsize); + return tu_edpt_stream_write(dev_addr, &p_midi_host->ep_stream.tx, buffer, bufsize4); +} + +//--------------------------------------------------------------------+ +// Stream API +//--------------------------------------------------------------------+ +#if CFG_TUH_MIDI_STREAM_API uint32_t tuh_midi_stream_write(uint8_t dev_addr, uint8_t cable_num, uint8_t const *buffer, uint32_t bufsize) { midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); TU_VERIFY(p_midi_host != NULL); @@ -530,47 +582,6 @@ uint32_t tuh_midi_stream_write(uint8_t dev_addr, uint8_t cable_num, uint8_t cons return i; } -bool tuh_midi_packet_write (uint8_t dev_addr, uint8_t const packet[4]) { - midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); - TU_VERIFY(p_midi_host != NULL); - return 4 == tu_edpt_stream_write(dev_addr, &p_midi_host->ep_stream.tx, packet, 4); -} - -uint32_t tuh_midi_stream_flush(uint8_t dev_addr) { - midih_interface_t *p_midi = find_midi_by_daddr(dev_addr); - TU_VERIFY(p_midi != NULL); - return tu_edpt_stream_write_xfer(p_midi->dev_addr, &p_midi->ep_stream.tx); -} -//--------------------------------------------------------------------+ -// Helper -//--------------------------------------------------------------------+ -uint8_t tuh_midi_get_num_tx_cables (uint8_t dev_addr) { - midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); - TU_VERIFY(p_midi_host != NULL, 0); - TU_VERIFY(p_midi_host->ep_stream.tx.ep_addr != 0, 0); - return p_midi_host->num_cables_tx; -} - -uint8_t tuh_midi_get_num_rx_cables (uint8_t dev_addr) { - midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); - TU_VERIFY(p_midi_host != NULL, 0); - TU_VERIFY(p_midi_host->ep_stream.rx.ep_addr != 0, 0); - return p_midi_host->num_cables_rx; -} - -uint32_t tuh_midi_read_available(uint8_t dev_addr) { - midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); - TU_VERIFY(p_midi_host != NULL); - return tu_edpt_stream_read_available(&p_midi_host->ep_stream.rx); -} - -bool tuh_midi_packet_read (uint8_t dev_addr, uint8_t packet[4]) { - midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); - TU_VERIFY(p_midi_host != NULL); - TU_VERIFY(tu_edpt_stream_read_available(&p_midi_host->ep_stream.rx) >= 4); - return 4 == tu_edpt_stream_read(dev_addr, &p_midi_host->ep_stream.rx, packet, 4); -} - uint32_t tuh_midi_stream_read(uint8_t dev_addr, uint8_t *p_cable_num, uint8_t *p_buffer, uint16_t bufsize) { midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); TU_VERIFY(p_midi_host != NULL); @@ -669,6 +680,9 @@ uint32_t tuh_midi_stream_read(uint8_t dev_addr, uint8_t *p_cable_num, uint8_t *p return bytes_buffered; } +//--------------------------------------------------------------------+ +// String API +//--------------------------------------------------------------------+ #if CFG_MIDI_HOST_DEVSTRINGS static uint8_t find_string_index(midih_interface_t *ptr, uint8_t jack_id) { @@ -690,9 +704,7 @@ static uint8_t find_string_index(midih_interface_t *ptr, uint8_t jack_id) } return index; } -#endif -#if CFG_MIDI_HOST_DEVSTRINGS uint8_t tuh_midi_get_rx_cable_istrings(uint8_t dev_addr, uint8_t* istrings, uint8_t max_istrings) { midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr); TU_VERIFY(p_midi_host != NULL, 0); @@ -732,3 +744,5 @@ uint8_t tuh_midi_get_all_istrings(uint8_t dev_addr, const uint8_t** istrings) return nstrings; } #endif + +#endif diff --git a/src/class/midi/midi_host.h b/src/class/midi/midi_host.h index ab6c43908..6e2595e44 100644 --- a/src/class/midi/midi_host.h +++ b/src/class/midi/midi_host.h @@ -24,8 +24,8 @@ * This file is part of the TinyUSB stack. */ -#ifndef _TUSB_MIDI_HOST_H_ -#define _TUSB_MIDI_HOST_H_ +#ifndef TUSB_MIDI_HOST_H_ +#define TUSB_MIDI_HOST_H_ #include "class/audio/audio.h" #include "midi.h" @@ -53,6 +53,12 @@ #define CFG_TUH_MIDI_EP_BUFSIZE TUH_EPSIZE_BULK_MPS #endif +// Enable the MIDI stream read/write API. Some library can work with raw USB MIDI packet +// Disable this can save driver footprint. +#ifndef CFG_TUH_MIDI_STREAM_API +#define CFG_TUH_MIDI_STREAM_API 1 +#endif + #ifndef CFG_MIDI_HOST_DEVSTRINGS #define CFG_MIDI_HOST_DEVSTRINGS 0 #endif @@ -60,7 +66,7 @@ //--------------------------------------------------------------------+ // Application API //--------------------------------------------------------------------+ -bool tuh_midi_configured (uint8_t dev_addr); +bool tuh_midi_configured (uint8_t dev_addr); // return the number of virtual midi cables on the device's IN endpoint uint8_t tuh_midi_get_num_rx_cables(uint8_t dev_addr); @@ -74,40 +80,51 @@ uint8_t tuh_midi_get_tx_cable_istrings(uint8_t dev_addr, uint8_t* istrings, uint uint8_t tuh_midi_get_all_istrings(uint8_t dev_addr, const uint8_t** istrings); #endif -// return the raw number of bytes available from device endpoint. +// return the raw number of bytes available. // Note: this is related but not the same as number of stream bytes available. uint32_t tuh_midi_read_available(uint8_t dev_addr); +// 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_write_flush( uint8_t dev_addr); + //--------------------------------------------------------------------+ // Packet API //--------------------------------------------------------------------+ +// Read all available MIDI packets from the connected device +// Return number of bytes read (always multiple of 4) +uint32_t tuh_midi_packet_read_n(uint8_t dev_addr, uint8_t* buffer, uint32_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]); +TU_ATTR_ALWAYS_INLINE static inline +bool tuh_midi_packet_read (uint8_t dev_addr, uint8_t packet[4]) { + return 4 == tuh_midi_packet_read_n(dev_addr, packet, 4); +} + +// Write all 4-byte packets, data is locally buffered and only transferred when buffered bytes +// reach the endpoint packet size or tuh_midi_write_flush() is called +uint32_t tuh_midi_packet_write_n(uint8_t dev_addr, const uint8_t* buffer, uint32_t bufsize); -// 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. +// Write a 4-bytes packet to the device. // Returns true if the packet was successfully queued. -bool tuh_midi_packet_write (uint8_t dev_addr, uint8_t const packet[4]); +TU_ATTR_ALWAYS_INLINE static inline +bool tuh_midi_packet_write (uint8_t dev_addr, uint8_t const packet[4]) { + return 4 == tuh_midi_packet_write_n(dev_addr, packet, 4); +} //--------------------------------------------------------------------+ // Stream API //--------------------------------------------------------------------+ +#if CFG_TUH_MIDI_STREAM_API -// Queue a message to the device. The application -// must call tuh_midi_stream_flush to actually have the -// data go out. +// Queue a message to the device using stream API. data is locally buffered and only transferred when buffered bytes +// reach the endpoint packet size or tuh_midi_write_flush() is called +// Returns number of bytes was successfully queued. 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. @@ -117,6 +134,8 @@ uint32_t tuh_midi_stream_flush( uint8_t dev_addr); // it properly. uint32_t tuh_midi_stream_read (uint8_t dev_addr, uint8_t *p_cable_num, uint8_t *p_buffer, uint16_t bufsize); +#endif + //--------------------------------------------------------------------+ // Callbacks (Weak is optional) //--------------------------------------------------------------------+ @@ -144,4 +163,4 @@ void midih_close (uint8_t dev_addr); } #endif -#endif /* _TUSB_MIDI_HOST_H_ */ +#endif |