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Add MIDI CI buffer generator functions with various tests (ongoing).
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@atsushieno
atsushieno committed Jun 20, 2021
1 parent 4896dcf commit c44d99a
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281 changes: 281 additions & 0 deletions cmidi2.h
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Original file line number Diff line number Diff line change
Expand Up @@ -726,3 +726,284 @@ static inline void* cmidi2_ump_sequence_next(void* ptr) {
#ifdef __cplusplus
}
#endif


// MIDI CI support.

#define CMIDI2_CI_SUB_ID 0xD
#define CMIDI2_CI_SUB_ID_2_DISCOVERY_INQUIRY 0x70
#define CMIDI2_CI_SUB_ID_2_DISCOVERY_REPLY 0x71
#define CMIDI2_CI_SUB_ID_2_INVALIDATE_MUID 0x7E
#define CMIDI2_CI_SUB_ID_2_NAK 0x7F
#define CMIDI2_CI_SUB_ID_2_PROTOCOL_NEGOTIATION_INQUIRY 0x10
#define CMIDI2_CI_SUB_ID_2_PROTOCOL_NEGOTIATION_REPLY 0x11
#define CMIDI2_CI_SUB_ID_2_SET_NEW_PROTOCOL 0x12
#define CMIDI2_CI_SUB_ID_2_TEST_NEW_PROTOCOL_I2R 0x13
#define CMIDI2_CI_SUB_ID_2_TEST_NEW_PROTOCOL_R2I 0x14
#define CMIDI2_CI_SUB_ID_2_CONFIRM_NEW_PROTOCOL_ESTABLISHED 0x15
#define CMIDI2_CI_SUB_ID_2_PROFILE_INQUIRY 0x20
#define CMIDI2_CI_SUB_ID_2_PROFILE_INQUIRY_REPLY 0x21
#define CMIDI2_CI_SUB_ID_2_SET_PROFILE_ON 0x22
#define CMIDI2_CI_SUB_ID_2_SET_PROFILE_OFF 0x23
#define CMIDI2_CI_SUB_ID_2_PROFILE_ENABLED_REPORT 0x24
#define CMIDI2_CI_SUB_ID_2_PROFILE_DISABLED_REPORT 0x25
#define CMIDI2_CI_SUB_ID_2_PROFILE_SPECIFIC_DATA 0x2F
#define CMIDI2_CI_SUB_ID_2_PROPERTY_CAPABILITIES_INQUIRY 0x30
#define CMIDI2_CI_SUB_ID_2_PROPERTY_CAPABILITIES_REPLY 0x31
#define CMIDI2_CI_SUB_ID_2_PROPERTY_HAS_DATA_INQUIRY 0x32
#define CMIDI2_CI_SUB_ID_2_PROPERTY_HAS_DATA_REPLY 0x33
#define CMIDI2_CI_SUB_ID_2_PROPERTY_GET_DATA_INQUIRY 0x34
#define CMIDI2_CI_SUB_ID_2_PROPERTY_GET_DATA_REPLY 0x35
#define CMIDI2_CI_SUB_ID_2_PROPERTY_SET_DATA_INQUIRY 0x36
#define CMIDI2_CI_SUB_ID_2_PROPERTY_SET_DATA_REPLY 0x37
#define CMIDI2_CI_SUB_ID_2_PROPERTY_SUBSCRIBE 0x38
#define CMIDI2_CI_SUB_ID_2_PROPERTY_SUBSCRIBE_REPLY 0x39
#define CMIDI2_CI_SUB_ID_2_PROPERTY_NOTIFY 0x3F

typedef struct {
uint8_t type;
uint8_t version;
uint8_t extensions;
uint8_t reserved1;
uint8_t reserved2;
} cmidi2_ci_protocol_type_info;

typedef struct {
uint8_t fixed_7e; // 0x7E
uint8_t bank;
uint8_t number;
uint8_t version;
uint8_t level;
} cmidi2_profile_id;

// Assumes the input value is already 7-bit encoded if required.
static inline void cmidi2_ci_put_direct_uint16_at(uint8_t* buf, uint16_t v) {
buf[0] = v & 0xFF;
buf[1] = (v >> 8) & 0xFF;
}

// Assumes the input value is already 7-bit encoded if required.
static inline void cmidi2_ci_put_direct_uint32_at(uint8_t* buf, uint32_t v) {
buf[0] = v & 0xFF;
buf[1] = (v >> 8) & 0xFF;
buf[2] = (v >> 16) & 0xFF;
buf[3] = (v >> 24) & 0xFF;
}

static inline void cmidi2_ci_put_7bit_int14_at(uint8_t* buf, uint16_t v) {
buf[0] = v & 0x7F;
buf[1] = (v >> 7) & 0x7F;
}

static inline void cmidi2_ci_put_7bit_int21_at(uint8_t* buf, uint32_t v) {
buf[0] = v & 0x7F;
buf[1] = (v >> 7) & 0x7F;
buf[2] = (v >> 14) & 0x7F;
}

static inline void cmidi2_ci_put_7bit_int28_at(uint8_t* buf, uint32_t v) {
buf[0] = v & 0x7F;
buf[1] = (v >> 7) & 0x7F;
buf[2] = (v >> 14) & 0x7F;
buf[3] = (v >> 21) & 0x7F;
}

static inline void cmidi2_ci_put_message_common(uint8_t* buf,
uint8_t destination, uint8_t sysexSubId2, uint8_t versionAndFormat, uint32_t sourceMUID, uint32_t destinationMUID) {
buf[0] = 0x7E;
buf[1] = destination;
buf[2] = 0xD;
buf[3] = sysexSubId2;
buf[4] = versionAndFormat;
cmidi2_ci_put_direct_uint32_at(buf + 5, sourceMUID);
cmidi2_ci_put_direct_uint32_at(buf + 9, destinationMUID);
}

// Discovery

static inline void cmidi2_ci_put_discovery_common(uint8_t* buf, uint8_t sysexSubId2,
uint8_t versionAndFormat, uint32_t sourceMUID, uint32_t destinationMUID,
uint32_t deviceManufacturer3Bytes, uint16_t deviceFamily, uint16_t deviceFamilyModelNumber,
uint32_t softwareRevisionLevel, uint8_t ciCategorySupported, uint32_t receivableMaxSysExSize) {
cmidi2_ci_put_message_common(buf, 0x7F, sysexSubId2, versionAndFormat, sourceMUID, destinationMUID);
cmidi2_ci_put_direct_uint32_at(buf + 13, deviceManufacturer3Bytes); // the last byte is extraneous, but will be overwritten next.
cmidi2_ci_put_direct_uint16_at(buf + 16, deviceFamily);
cmidi2_ci_put_direct_uint16_at(buf + 18, deviceFamilyModelNumber);
// LAMESPEC: Software Revision Level does not mention in which endianness this field is stored.
cmidi2_ci_put_direct_uint32_at(buf + 20, softwareRevisionLevel);
buf[24] = ciCategorySupported;
cmidi2_ci_put_direct_uint32_at(buf + 25, receivableMaxSysExSize);
}

static inline void cmidi2_ci_put_discovery(uint8_t* buf,
uint8_t versionAndFormat, uint32_t sourceMUID,
uint32_t deviceManufacturer, uint16_t deviceFamily, uint16_t deviceFamilyModelNumber,
uint32_t softwareRevisionLevel, uint8_t ciCategorySupported, uint32_t receivableMaxSysExSize) {
cmidi2_ci_put_discovery_common(buf, CMIDI2_CI_SUB_ID_2_DISCOVERY_INQUIRY,
versionAndFormat, sourceMUID, 0x7F7F7F7F,
deviceManufacturer, deviceFamily, deviceFamilyModelNumber,
softwareRevisionLevel, ciCategorySupported, receivableMaxSysExSize);
}

static inline void cmidi2_ci_put_discovery_reply(uint8_t* buf,
uint8_t versionAndFormat, uint32_t sourceMUID, uint32_t destinationMUID,
uint32_t deviceManufacturer, uint16_t deviceFamily, uint16_t deviceFamilyModelNumber,
uint32_t softwareRevisionLevel, uint8_t ciCategorySupported, uint32_t receivableMaxSysExSize) {
cmidi2_ci_put_discovery_common(buf, CMIDI2_CI_SUB_ID_2_DISCOVERY_REPLY,
versionAndFormat, sourceMUID, destinationMUID,
deviceManufacturer, deviceFamily, deviceFamilyModelNumber,
softwareRevisionLevel, ciCategorySupported, receivableMaxSysExSize);
}

static inline void cmidi2_ci_put_discovery_invalidate_muid(uint8_t* buf,
uint8_t versionAndFormat, uint32_t sourceMUID, uint32_t targetMUID) {
cmidi2_ci_put_message_common(buf, 0x7F, 0x7E, versionAndFormat, sourceMUID, 0x7F7F7F7F);
cmidi2_ci_put_direct_uint32_at(buf + 13, targetMUID);
}

static inline void cmidi2_ci_put_discovery_nak(uint8_t* buf, uint8_t deviceId,
uint8_t versionAndFormat, uint32_t sourceMUID, uint32_t destinationMUID) {
cmidi2_ci_put_message_common(buf, deviceId, 0x7F, versionAndFormat, sourceMUID, destinationMUID);
}

// Protocol Negotiation

static inline void cmidi2_ci_put_protocol_info(uint8_t* buf, cmidi2_ci_protocol_type_info info) {
buf[0] = info.type;
buf[1] = info.version;
buf[2] = info.extensions;
buf[3] = info.reserved1;
buf[4] = info.reserved2;
}

static inline void cmidi2_ci_put_protocols(uint8_t* buf, uint8_t numSupportedProtocols, cmidi2_ci_protocol_type_info* protocolTypes) {
buf[0] = numSupportedProtocols;
for (int i = 0; i < numSupportedProtocols; i++)
cmidi2_ci_put_protocol_info(buf + 1 + i * 5, protocolTypes[i]);
}

static inline void cmidi2_ci_put_protocol_negotiation(uint8_t* buf, bool isReply,
uint32_t sourceMUID, uint32_t destinationMUID,
uint8_t authorityLevel,
uint8_t numSupportedProtocols, cmidi2_ci_protocol_type_info* protocolTypes) {
cmidi2_ci_put_message_common(buf, 0x7F,
isReply ? CMIDI2_CI_SUB_ID_2_PROTOCOL_NEGOTIATION_REPLY : CMIDI2_CI_SUB_ID_2_PROTOCOL_NEGOTIATION_INQUIRY,
1, sourceMUID, destinationMUID);
buf[13] = authorityLevel;
cmidi2_ci_put_protocols(buf + 14, numSupportedProtocols, protocolTypes);
}

static inline void cmidi2_ci_put_protocol_set(uint8_t* buf,
uint32_t sourceMUID, uint32_t destinationMUID,
uint8_t authorityLevel, cmidi2_ci_protocol_type_info newProtocolType) {
cmidi2_ci_put_message_common(buf, 0x7F,
CMIDI2_CI_SUB_ID_2_SET_NEW_PROTOCOL,
1, sourceMUID, destinationMUID);
buf[13] = authorityLevel;
cmidi2_ci_put_protocol_info(buf + 14, newProtocolType);
}

static inline void cmidi2_ci_put_protocol_test(uint8_t* buf,
bool isInitiatorToResponder,
uint32_t sourceMUID, uint32_t destinationMUID,
uint8_t authorityLevel, uint8_t* testData48Bytes) {
cmidi2_ci_put_message_common(buf, 0x7F,
isInitiatorToResponder ? CMIDI2_CI_SUB_ID_2_TEST_NEW_PROTOCOL_I2R : CMIDI2_CI_SUB_ID_2_TEST_NEW_PROTOCOL_R2I,
1, sourceMUID, destinationMUID);
buf[13] = authorityLevel;
memcpy(buf + 14, testData48Bytes, 48);
}

static inline void cmidi2_ci_put_protocol_confirm_established(uint8_t* buf,
uint32_t sourceMUID, uint32_t destinationMUID,
uint8_t authorityLevel) {
cmidi2_ci_put_message_common(buf, 0x7F,
CMIDI2_CI_SUB_ID_2_CONFIRM_NEW_PROTOCOL_ESTABLISHED,
1, sourceMUID, destinationMUID);
buf[13] = authorityLevel;
}

// Profile Configuration

static inline void cmidi2_ci_put_profile(uint8_t* buf, cmidi2_profile_id info) {
buf[0] = info.fixed_7e;
buf[1] = info.bank;
buf[2] = info.number;
buf[3] = info.version;
buf[4] = info.level;
}

static inline void cmidi2_ci_put_profile_inquiry(uint8_t* buf, uint8_t source,
uint32_t sourceMUID, uint32_t destinationMUID) {
cmidi2_ci_put_message_common(buf, source,
CMIDI2_CI_SUB_ID_2_PROFILE_INQUIRY,
1, sourceMUID, destinationMUID);
}

static inline void cmidi2_ci_put_profile_inquiry_reply(uint8_t* buf, uint8_t source,
uint32_t sourceMUID, uint32_t destinationMUID,
uint8_t numEnabledProfiles, cmidi2_profile_id* enabledProfiles,
uint8_t numDisabledProfiles, cmidi2_profile_id* disabledProfiles) {
cmidi2_ci_put_message_common(buf, source,
CMIDI2_CI_SUB_ID_2_PROFILE_INQUIRY_REPLY,
1, sourceMUID, destinationMUID);
buf[13] = numEnabledProfiles;
for (int i = 0; i < numEnabledProfiles; i++)
cmidi2_ci_put_profile(buf + 14 + i * 5, enabledProfiles[i]);
uint32_t pos = 14 + numEnabledProfiles * 5;
buf[pos++] = numDisabledProfiles;
for (int i = 0; i < numDisabledProfiles; i++)
cmidi2_ci_put_profile(buf + pos + i * 5, disabledProfiles[i]);
}

static inline void cmidi2_ci_put_profile_set(uint8_t* buf, uint8_t destination, bool turnOn,
uint32_t sourceMUID, uint32_t destinationMUID, cmidi2_profile_id profile) {
cmidi2_ci_put_message_common(buf, destination,
turnOn ? CMIDI2_CI_SUB_ID_2_SET_PROFILE_ON : CMIDI2_CI_SUB_ID_2_SET_PROFILE_OFF,
1, sourceMUID, destinationMUID);
cmidi2_ci_put_profile(buf + 13, profile);
}

static inline void cmidi2_ci_put_profile_report(uint8_t* buf, uint8_t source, bool isEnabledReport,
uint32_t sourceMUID, cmidi2_profile_id profile) {
cmidi2_ci_put_message_common(buf, source,
isEnabledReport ? CMIDI2_CI_SUB_ID_2_PROFILE_ENABLED_REPORT : CMIDI2_CI_SUB_ID_2_PROFILE_DISABLED_REPORT,
1, sourceMUID, 0x7F7F7F7F);
cmidi2_ci_put_profile(buf + 13, profile);
}

static inline void cmidi2_ci_put_profile_specific_data(uint8_t* buf, uint8_t source,
uint32_t sourceMUID, uint32_t destinationMUID, cmidi2_profile_id profile, uint32_t dataSize, void* data) {
cmidi2_ci_put_message_common(buf, source,
CMIDI2_CI_SUB_ID_2_PROFILE_SPECIFIC_DATA,
1, sourceMUID, destinationMUID);
cmidi2_ci_put_profile(buf + 13, profile);
cmidi2_ci_put_direct_uint32_at(buf + 18, dataSize);
memcpy(buf + 22, data, dataSize);
}

// Property Exchange

static inline void cmidi2_ci_put_property_get_capabilities(uint8_t* buf, uint8_t destination, bool isReply,
uint32_t sourceMUID, uint32_t destinationMUID, uint8_t maxSupportedRequests) {
cmidi2_ci_put_message_common(buf, destination,
isReply ? CMIDI2_CI_SUB_ID_2_PROPERTY_CAPABILITIES_REPLY : CMIDI2_CI_SUB_ID_2_PROPERTY_CAPABILITIES_INQUIRY,
1, sourceMUID, destinationMUID);
buf[13] = maxSupportedRequests;
}

// common to all of: has data & reply, get data & reply, set data & reply, subscribe & reply, notify
static inline void cmidi2_ci_put_property_common(uint8_t* buf, uint8_t destination, uint8_t messageTypeSubId2,
uint32_t sourceMUID, uint32_t destinationMUID,
uint8_t requestId, uint16_t headerSize, void* header,
uint16_t numChunks, uint16_t chunkIndex, uint16_t dataSize, void* data) {
cmidi2_ci_put_message_common(buf, destination, messageTypeSubId2, 1, sourceMUID, destinationMUID);
buf[13] = requestId;
cmidi2_ci_put_direct_uint16_at(buf + 14, headerSize);
memcpy(buf + 16, header, headerSize);
cmidi2_ci_put_direct_uint16_at(buf + 16 + headerSize, numChunks);
cmidi2_ci_put_direct_uint16_at(buf + 18 + headerSize, chunkIndex);
cmidi2_ci_put_direct_uint16_at(buf + 20 + headerSize, dataSize);
memcpy(buf + 22 + headerSize, data, dataSize);
}

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