ump_stream_responder.c File Reference

#include <string.h>
#include <zephyr/devicetree.h>
#include <zephyr/drivers/hwinfo.h>
#include <zephyr/sys/byteorder.h>
#include "ump_stream_responder.h"

Macros
#define	BIT_IF(cond, n)   ((cond) ? BIT(n) : 0)
#define	MIDI_CI_VERSION_FORMAT_UMP_1_1   0x01
	MIDI-CI version identifier for UMP v1.1 devices.

Functions
static bool	ep_has_midi1 (const struct ump_endpoint_dt_spec *ep)
static bool	ep_has_midi2 (const struct ump_endpoint_dt_spec *ep)
static struct midi_ump	make_endpoint_info (const struct ump_endpoint_dt_spec *ep)
	Build an Endpoint Info Notification Universal MIDI Packet.
static struct midi_ump	make_function_block_info (const struct ump_endpoint_dt_spec *ep, size_t block_num)
	Build a Function Block Info Notification Universal MIDI Packet.
static size_t	fill_str (struct midi_ump *ump, size_t offset, const char *src, size_t len)
	Copy an ASCII string into a Universal MIDI Packet while leaving some most significant bytes untouched, such that the caller can set this prefix.
static int	send_string (const struct ump_stream_responder_cfg *cfg, const char *string, uint32_t prefix, size_t offset)
	Send a string as UMP Stream, possibly splitting into multiple packets if the string length is larger than 1 UMP.
static int	ump_ep_discover (const struct ump_stream_responder_cfg *cfg, const struct midi_ump pkt)
	Handle Endpoint Discovery messages.
static int	ump_fb_discover_block (const struct ump_stream_responder_cfg *cfg, size_t block_num, uint8_t filter)
static int	ump_fb_discover (const struct ump_stream_responder_cfg *cfg, const struct midi_ump pkt)
	Handle Function Block Discovery messages.
const char *	ump_product_instance_id (void)
int	ump_stream_respond (const struct ump_stream_responder_cfg *cfg, const struct midi_ump pkt)
	Respond to an UMP Stream message.

Macro Definition Documentation

BIT_IF

#define BIT_IF	(		cond,
			n
	)		((cond) ? BIT(n) : 0)

MIDI_CI_VERSION_FORMAT_UMP_1_1

#define MIDI_CI_VERSION_FORMAT_UMP_1_1   0x01

MIDI-CI version identifier for UMP v1.1 devices.

See also

Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol: 7.1.8 FB Info Notification > MIDI-CI Message Version/Format

Function Documentation

ep_has_midi1()

static bool ep_has_midi1 ( const struct ump_endpoint_dt_spec *  ep )

inlinestatic

ep_has_midi2()

static bool ep_has_midi2 ( const struct ump_endpoint_dt_spec *  ep )

inlinestatic

fill_str()

static size_t fill_str ( struct midi_ump *  ump, size_t  offset, const char *  src, size_t  len  )

inlinestatic

Copy an ASCII string into a Universal MIDI Packet while leaving some most significant bytes untouched, such that the caller can set this prefix.

Parameters

	ump	The ump into which the string is copied
[in]	offset	Number of bytes from the most-significant side to leave free
[in]	src	The source string
[in]	len	The length of the source string

Returns

The number of bytes copied

make_endpoint_info()

static struct midi_ump make_endpoint_info ( const struct ump_endpoint_dt_spec *  ep )

inlinestatic

Build an Endpoint Info Notification Universal MIDI Packet.

See also

Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol: 7.1.2 Endpoint Info Notification Message

make_function_block_info()

static struct midi_ump make_function_block_info ( const struct ump_endpoint_dt_spec *  ep, size_t  block_num  )

inlinestatic

Build a Function Block Info Notification Universal MIDI Packet.

See also

Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol: 7.1.8 Function Block Info Notification

send_string()

static int send_string ( const struct ump_stream_responder_cfg *  cfg, const char *  string, uint32_t  prefix, size_t  offset  )

inlinestatic

Send a string as UMP Stream, possibly splitting into multiple packets if the string length is larger than 1 UMP.

Parameters

[in]	cfg	The responder configuration
[in]	string	The string to send
[in]	prefix	The fixed prefix of UMP packets to send
[in]	offset	The offset the strings starts in the packet, in bytes

Returns

The number of packets sent

ump_ep_discover()

static int ump_ep_discover ( const struct ump_stream_responder_cfg *  cfg, const struct midi_ump  pkt  )

inlinestatic

Handle Endpoint Discovery messages.

Parameters

[in]	cfg	The responder configuration
[in]	pkt	The discovery packet to handle

Returns

The number of UMP sent as reply

ump_fb_discover()

static int ump_fb_discover ( const struct ump_stream_responder_cfg *  cfg, const struct midi_ump  pkt  )

inlinestatic

Handle Function Block Discovery messages.

Parameters

[in]	cfg	The responder configuration
[in]	pkt	The discovery packet to handle

Returns

The number of UMP sent as reply

ump_fb_discover_block()

static int ump_fb_discover_block ( const struct ump_stream_responder_cfg *  cfg, size_t  block_num, uint8_t  filter  )

inlinestatic