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remove CFG_MIDI_HOST_DEVSTRINGS support, we will leave that for application to parse/extract this information if needed

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rename tuh_midi_configure() to mounted() for consistency
This commit is contained in:
hathach
2025-02-21 17:31:13 +07:00
parent 6ebd362cfd
commit b12c8a9012
4 changed files with 117 additions and 286 deletions
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2
examples/host/midi_rx/src/main.c
View File

@@ -89,7 +89,7 @@ void led_blinking_task(void) {
//--------------------------------------------------------------------+
void midi_host_rx_task(void) {
// device must be attached and have at least one endpoint ready to receive a message
if (!midi_dev_addr || !tuh_midi_configured(midi_dev_addr)) {
if (!midi_dev_addr || !tuh_midi_mounted(midi_dev_addr)) {
return;
}
if (tuh_midi_get_num_rx_cables(midi_dev_addr) < 1) {

127
src/class/midi/midi.h
View File

@@ -36,28 +36,29 @@
//--------------------------------------------------------------------+
// Constants
//--------------------------------------------------------------------+
enum {
MIDI_VERSION_1_0 = 0x0100,
MIDI_VERSION_2_0 = 0x0200,
};
typedef enum
{
typedef enum {
MIDI_CS_INTERFACE_HEADER = 0x01,
MIDI_CS_INTERFACE_IN_JACK = 0x02,
MIDI_CS_INTERFACE_OUT_JACK = 0x03,
MIDI_CS_INTERFACE_ELEMENT = 0x04,
} midi_cs_interface_subtype_t;
typedef enum
{
MIDI_CS_ENDPOINT_GENERAL = 0x01
typedef enum {
MIDI_CS_ENDPOINT_GENERAL = 0x01,
MIDI_CS_ENDPOINT_GENERAL_2_0 = 0x02,
} midi_cs_endpoint_subtype_t;
typedef enum
{
typedef enum {
MIDI_JACK_EMBEDDED = 0x01,
MIDI_JACK_EXTERNAL = 0x02
} midi_jack_type_t;
typedef enum
{
typedef enum {
MIDI_CIN_MISC = 0,
MIDI_CIN_CABLE_EVENT = 1,
MIDI_CIN_SYSCOM_2BYTE = 2, // 2 byte system common message e.g MTC, SongSelect
@@ -77,8 +78,7 @@ typedef enum
} midi_code_index_number_t;
// MIDI 1.0 status byte
enum
{
enum {
//------------- System Exclusive -------------//
MIDI_STATUS_SYSEX_START = 0xF0,
MIDI_STATUS_SYSEX_END = 0xF7,
@@ -101,8 +101,7 @@ enum
MIDI_STATUS_SYSREAL_SYSTEM_RESET = 0xFF,
};
enum
{
enum {
MIDI_MAX_DATA_VAL = 0x7F,
};
@@ -111,62 +110,48 @@ enum
//--------------------------------------------------------------------+
/// MIDI Interface Header Descriptor
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor in bytes.
uint8_t bDescriptorType ; ///< Descriptor Type, must be Class-Specific
uint8_t bDescriptorSubType ; ///< Descriptor SubType
uint16_t bcdMSC ; ///< MidiStreaming SubClass release number in Binary-Coded Decimal
uint16_t wTotalLength ;
typedef struct TU_ATTR_PACKED {
uint8_t bLength; ///< Size of this descriptor in bytes.
uint8_t bDescriptorType; ///< must be TUSB_DESC_CS_INTERFACE
uint8_t bDescriptorSubType;///< Descriptor SubType
uint16_t bcdMSC; ///< MidiStreaming SubClass release number in Binary-Coded Decimal
uint16_t wTotalLength;
} midi_desc_header_t;
TU_VERIFY_STATIC(sizeof(midi_desc_header_t) == 7, "size is not correct");
/// MIDI In Jack Descriptor
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor in bytes.
uint8_t bDescriptorType ; ///< Descriptor Type, must be Class-Specific
uint8_t bDescriptorSubType ; ///< Descriptor SubType
uint8_t bJackType ; ///< Embedded or External
uint8_t bJackID ; ///< Unique ID for MIDI IN Jack
uint8_t iJack ; ///< string descriptor
typedef struct TU_ATTR_PACKED {
uint8_t bLength; ///< Size of this descriptor in bytes.
uint8_t bDescriptorType; ///< Descriptor Type, must be Class-Specific
uint8_t bDescriptorSubType;///< Descriptor SubType
uint8_t bJackType; ///< Embedded or External
uint8_t bJackID; ///< Unique ID for MIDI IN Jack
uint8_t iJack; ///< string descriptor
} midi_desc_in_jack_t;
TU_VERIFY_STATIC(sizeof(midi_desc_in_jack_t) == 6, "size is not correct");
/// MIDI Out Jack Descriptor with single pin
typedef struct TU_ATTR_PACKED
{
uint8_t bLength ; ///< Size of this descriptor in bytes.
uint8_t bDescriptorType ; ///< Descriptor Type, must be Class-Specific
uint8_t bDescriptorSubType ; ///< Descriptor SubType
uint8_t bJackType ; ///< Embedded or External
uint8_t bJackID ; ///< Unique ID for MIDI IN Jack
uint8_t bNrInputPins;
uint8_t baSourceID;
uint8_t baSourcePin;
uint8_t iJack ; ///< string descriptor
} midi_desc_out_jack_t ;
/// MIDI Out Jack Descriptor with multiple pins
/// MIDI Out Jack Descriptor with multiple input pins
#define midi_desc_out_jack_n_t(input_num) \
struct TU_ATTR_PACKED { \
uint8_t bLength ; \
uint8_t bDescriptorType ; \
uint8_t bDescriptorSubType ; \
uint8_t bJackType ; \
uint8_t bJackID ; \
uint8_t bNrInputPins ; \
struct TU_ATTR_PACKED { \
uint8_t baSourceID; \
uint8_t baSourcePin; \
} pins[input_num]; \
uint8_t iJack ; \
struct TU_ATTR_PACKED { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint8_t bJackType; \
uint8_t bJackID; \
uint8_t bNrInputPins; \
struct TU_ATTR_PACKED { \
uint8_t baSourceID; \
uint8_t baSourcePin; \
} input[input_num]; \
uint8_t iJack; \
}
typedef midi_desc_out_jack_n_t(1) midi_desc_out_jack_1in_t; // 1 input
typedef midi_desc_out_jack_1in_t midi_desc_out_jack_t; // backward compatible
TU_VERIFY_STATIC(sizeof(midi_desc_out_jack_1in_t) == 7 + 2 * 1, "size is not correct");
/// MIDI Element Descriptor
typedef struct TU_ATTR_PACKED
{
typedef struct TU_ATTR_PACKED {
uint8_t bLength ; ///< Size of this descriptor in bytes.
uint8_t bDescriptorType ; ///< Descriptor Type, must be Class-Specific
uint8_t bDescriptorSubType ; ///< Descriptor SubType
@@ -184,6 +169,7 @@ typedef struct TU_ATTR_PACKED
uint16_t bmElementCaps;
uint8_t iElement;
} midi_desc_element_t;
TU_VERIFY_STATIC(sizeof(midi_desc_element_t) == 14, "size is not correct");
/// MIDI Element Descriptor with multiple pins
#define midi_desc_element_n_t(input_num) \
@@ -206,14 +192,19 @@ typedef struct TU_ATTR_PACKED
}
// This descriptor follows the standard bulk data endpoint descriptor
typedef struct
{
uint8_t bLength ; ///< Size of this descriptor in bytes (4+bNumEmbMIDIJack)
uint8_t bDescriptorType ; ///< Descriptor Type, must be CS_ENDPOINT
uint8_t bDescriptorSubType ; ///< Descriptor SubType, must be MS_GENERAL
uint8_t bNumEmbMIDIJack; ; ///< Number of embedded MIDI jacks associated with this endpoint
uint8_t baAssocJackID[]; ; ///< A list of associated jacks
} midi_cs_desc_endpoint_t;
#define midi_desc_cs_endpoint_n_t(jack_num) \
struct TU_ATTR_PACKED { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint8_t bNumEmbMIDIJack; \
uint8_t baAssocJackID[jack_num]; \
}
typedef midi_desc_cs_endpoint_n_t() midi_desc_cs_endpoint_t; // empty/flexible jack list
typedef midi_desc_cs_endpoint_n_t(1) midi_desc_cs_endpoint_1jack_t;
TU_VERIFY_STATIC(sizeof(midi_desc_cs_endpoint_1jack_t) == 4+1, "size is not correct");
//--------------------------------------------------------------------+
// For Internal Driver Use

256
src/class/midi/midi_host.c
View File

@@ -33,6 +33,13 @@
#include "midi_host.h"
// Level where CFG_TUSB_DEBUG must be at least for this driver is logged
#ifndef CFG_TUH_MIDI_LOG_LEVEL
#define CFG_TUH_MIDI_LOG_LEVEL CFG_TUH_LOG_LEVEL
#endif
#define TU_LOG_DRV(...) TU_LOG(CFG_TUH_MIDI_LOG_LEVEL, __VA_ARGS__)
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF
//--------------------------------------------------------------------+
@@ -65,30 +72,6 @@ typedef struct {
} ep_stream;
bool configured;
#if CFG_MIDI_HOST_DEVSTRINGS
#define MAX_STRING_INDICES 32
uint8_t all_string_indices[MAX_STRING_INDICES];
uint8_t num_string_indices;
#define MAX_IN_JACKS 8
#define MAX_OUT_JACKS 8
struct {
uint8_t jack_id;
uint8_t jack_type;
uint8_t string_index;
} in_jack_info[MAX_IN_JACKS];
uint8_t next_in_jack;
struct {
uint8_t jack_id;
uint8_t jack_type;
uint8_t num_source_ids;
uint8_t source_ids[MAX_IN_JACKS/4];
uint8_t string_index;
} out_jack_info[MAX_OUT_JACKS];
uint8_t next_out_jack;
uint8_t ep_in_associated_jacks[MAX_OUT_JACKS/2];
uint8_t ep_out_associated_jacks[MAX_IN_JACKS/2];
#endif
}midih_interface_t;
typedef struct {
@@ -209,19 +192,14 @@ bool midih_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint
bool midih_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t max_len) {
(void) rhport;
midih_interface_t *p_midi_host = find_new_midi();
TU_VERIFY(p_midi_host != NULL);
midih_interface_t *p_midi = find_new_midi();
TU_VERIFY(p_midi != NULL);
p_midi_host->num_string_indices = 0;
TU_VERIFY(TUSB_CLASS_AUDIO == desc_itf->bInterfaceClass);
// There can be just a MIDI interface or an audio and a MIDI interface. Only open the MIDI interface
uint8_t const *p_desc = (uint8_t const *) desc_itf;
uint16_t len_parsed = 0;
if (AUDIO_SUBCLASS_CONTROL == desc_itf->bInterfaceSubClass) {
// Keep track of any string descriptor that might be here
if (desc_itf->iInterface != 0) {
p_midi_host->all_string_indices[p_midi_host->num_string_indices++] = desc_itf->iInterface;
}
// This driver does not support audio streaming. However, if this is the audio control interface
// there might be a MIDI interface following it. Search through every descriptor until a MIDI
// interface is found or the end of the descriptor is found
@@ -237,26 +215,18 @@ bool midih_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *d
TU_VERIFY(AUDIO_SUBCLASS_MIDI_STREAMING == desc_itf->bInterfaceSubClass);
len_parsed += desc_itf->bLength;
// Keep track of any string descriptor that might be here
if (desc_itf->iInterface != 0) {
p_midi_host->all_string_indices[p_midi_host->num_string_indices++] = desc_itf->iInterface;
}
TU_LOG_DRV("MIDI opening Interface %u (addr = %u)\r\n", desc_itf->bInterfaceNumber, dev_addr);
p_midi->itf_num = desc_itf->bInterfaceNumber;
// CS Header descriptor
p_desc = tu_desc_next(p_desc);
TU_LOG1("MIDI opening Interface %u (addr = %u)\r\n", desc_itf->bInterfaceNumber, dev_addr);
// Find out if getting the MIDI class specific interface header or an endpoint descriptor
// or a class-specific endpoint descriptor
// Jack descriptors or element descriptors must follow the cs interface header,
// but this driver does not support devices that contain element descriptors
// assume it is an interface header
midi_desc_header_t const *p_mdh = (midi_desc_header_t const *)p_desc;
TU_VERIFY((p_mdh->bDescriptorType == TUSB_DESC_CS_INTERFACE && p_mdh->bDescriptorSubType == MIDI_CS_INTERFACE_HEADER) ||
(p_mdh->bDescriptorType == TUSB_DESC_CS_ENDPOINT && p_mdh->bDescriptorSubType == MIDI_CS_ENDPOINT_GENERAL) ||
p_mdh->bDescriptorType == TUSB_DESC_ENDPOINT);
midi_desc_header_t const *p_mdh = (midi_desc_header_t const *) p_desc;
TU_VERIFY(p_mdh->bDescriptorType == TUSB_DESC_CS_INTERFACE &&
p_mdh->bDescriptorSubType == MIDI_CS_INTERFACE_HEADER);
TU_LOG_DRV(" Interface Header descriptor\r\n");
// p_desc = tu_desc_next(p_desc);
uint8_t prev_ep_addr = 0; // the CS endpoint descriptor is associated with the previous endpoint descriptor
p_midi_host->itf_num = desc_itf->bInterfaceNumber;
tusb_desc_endpoint_t const* in_desc = NULL;
tusb_desc_endpoint_t const* out_desc = NULL;
while (len_parsed < max_len) {
@@ -271,110 +241,53 @@ bool midih_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *d
// assume it is an input jack
midi_desc_in_jack_t const *p_mdij = (midi_desc_in_jack_t const *) p_desc;
if (p_mdij->bDescriptorSubType == MIDI_CS_INTERFACE_HEADER) {
TU_LOG2("Found MIDI Interface Header\r\b");
TU_LOG_DRV(" Interface Header descriptor\r\n");
} else if (p_mdij->bDescriptorSubType == MIDI_CS_INTERFACE_IN_JACK) {
// Then it is an in jack.
TU_LOG2("Found in jack\r\n");
#if CFG_MIDI_HOST_DEVSTRINGS
if (p_midi_host->next_in_jack < MAX_IN_JACKS) {
p_midi_host->in_jack_info[p_midi_host->next_in_jack].jack_id = p_mdij->bJackID;
p_midi_host->in_jack_info[p_midi_host->next_in_jack].jack_type = p_mdij->bJackType;
p_midi_host->in_jack_info[p_midi_host->next_in_jack].string_index = p_mdij->iJack;
++p_midi_host->next_in_jack;
// Keep track of any string descriptor that might be here
if (p_mdij->iJack != 0) {
p_midi_host->all_string_indices[p_midi_host->num_string_indices++] = p_mdij->iJack;
}
}
#endif
TU_LOG_DRV(" IN Jack %s descriptor \r\n", p_mdij->bJackType == MIDI_JACK_EXTERNAL ? "External" : "Embedded");
} else if (p_mdij->bDescriptorSubType == MIDI_CS_INTERFACE_OUT_JACK) {
// then it is an out jack
TU_LOG2("Found out jack\r\n");
#if CFG_MIDI_HOST_DEVSTRINGS
if (p_midi_host->next_out_jack < MAX_OUT_JACKS) {
midi_desc_out_jack_t const *p_mdoj = (midi_desc_out_jack_t const *) p_desc;
p_midi_host->out_jack_info[p_midi_host->next_out_jack].jack_id = p_mdoj->bJackID;
p_midi_host->out_jack_info[p_midi_host->next_out_jack].jack_type = p_mdoj->bJackType;
p_midi_host->out_jack_info[p_midi_host->next_out_jack].num_source_ids = p_mdoj->bNrInputPins;
const struct associated_jack_s {
uint8_t id;
uint8_t pin;
} *associated_jack = (const struct associated_jack_s *) (p_desc + 6);
int jack;
for (jack = 0; jack < p_mdoj->bNrInputPins; jack++) {
p_midi_host->out_jack_info[p_midi_host->next_out_jack].source_ids[jack] = associated_jack->id;
}
p_midi_host->out_jack_info[p_midi_host->next_out_jack].string_index = *(p_desc + 6 + p_mdoj->bNrInputPins * 2);
++p_midi_host->next_out_jack;
if (p_mdoj->iJack != 0) {
p_midi_host->all_string_indices[p_midi_host->num_string_indices++] = p_mdoj->iJack;
}
}
#endif
TU_LOG_DRV(" OUT Jack %s descriptor\r\n", p_mdij->bJackType == MIDI_JACK_EXTERNAL ? "External" : "Embedded");
} else if (p_mdij->bDescriptorSubType == MIDI_CS_INTERFACE_ELEMENT) {
// the it is an element;
#if CFG_MIDI_HOST_DEVSTRINGS
TU_LOG1("Found element; strings not supported\r\n");
#else
TU_LOG2("Found element\r\n");
#endif
TU_LOG_DRV("Found element\r\n");
} else {
TU_LOG2("Unknown CS Interface sub-type %u\r\n", p_mdij->bDescriptorSubType);
TU_LOG_DRV(" Unknown CS Interface sub-type %u\r\n", p_mdij->bDescriptorSubType);
TU_VERIFY(false);// unknown CS Interface sub-type
}
len_parsed += p_mdij->bLength;
} else if (p_mdh->bDescriptorType == TUSB_DESC_CS_ENDPOINT) {
TU_LOG2("found CS_ENDPOINT Descriptor for %u\r\n", prev_ep_addr);
TU_LOG_DRV(" CS_ENDPOINT descriptor\r\n");
TU_VERIFY(prev_ep_addr != 0);
// parse out the mapping between the device's embedded jacks and the endpoints
// Each embedded IN jack is associated with an OUT endpoint
midi_cs_desc_endpoint_t const *p_csep = (midi_cs_desc_endpoint_t const *) p_mdh;
midi_desc_cs_endpoint_t const *p_csep = (midi_desc_cs_endpoint_t const *) p_mdh;
if (tu_edpt_dir(prev_ep_addr) == TUSB_DIR_OUT) {
TU_VERIFY(p_midi_host->ep_out == prev_ep_addr);
TU_VERIFY(p_midi_host->num_cables_tx == 0);
p_midi_host->num_cables_tx = p_csep->bNumEmbMIDIJack;
#if CFG_MIDI_HOST_DEVSTRINGS
uint8_t jack;
uint8_t max_jack = p_midi_host->num_cables_tx;
if (max_jack > sizeof(p_midi_host->ep_out_associated_jacks)) {
max_jack = sizeof(p_midi_host->ep_out_associated_jacks);
}
for (jack = 0; jack < max_jack; jack++) {
p_midi_host->ep_out_associated_jacks[jack] = p_csep->baAssocJackID[jack];
}
#endif
TU_VERIFY(p_midi->ep_out == prev_ep_addr);
TU_VERIFY(p_midi->num_cables_tx == 0);
p_midi->num_cables_tx = p_csep->bNumEmbMIDIJack;
} else {
TU_VERIFY(p_midi_host->ep_in == prev_ep_addr);
TU_VERIFY(p_midi_host->num_cables_rx == 0);
p_midi_host->num_cables_rx = p_csep->bNumEmbMIDIJack;
#if CFG_MIDI_HOST_DEVSTRINGS
uint8_t jack;
uint8_t max_jack = p_midi_host->num_cables_rx;
if (max_jack > sizeof(p_midi_host->ep_in_associated_jacks)) {
max_jack = sizeof(p_midi_host->ep_in_associated_jacks);
}
for (jack = 0; jack < max_jack; jack++) {
p_midi_host->ep_in_associated_jacks[jack] = p_csep->baAssocJackID[jack];
}
#endif
TU_VERIFY(p_midi->ep_in == prev_ep_addr);
TU_VERIFY(p_midi->num_cables_rx == 0);
p_midi->num_cables_rx = p_csep->bNumEmbMIDIJack;
}
len_parsed += p_csep->bLength;
prev_ep_addr = 0;
} else if (p_mdh->bDescriptorType == TUSB_DESC_ENDPOINT) {
// parse out the bulk endpoint info
tusb_desc_endpoint_t const *p_ep = (tusb_desc_endpoint_t const *) p_mdh;
TU_LOG2("found ENDPOINT Descriptor for %u\r\n", p_ep->bEndpointAddress);
TU_LOG_DRV(" Endpoint descriptor %02x\r\n", p_ep->bEndpointAddress);
if (tu_edpt_dir(p_ep->bEndpointAddress) == TUSB_DIR_OUT) {
TU_VERIFY(p_midi_host->ep_out == 0);
TU_VERIFY(p_midi_host->num_cables_tx == 0);
p_midi_host->ep_out = p_ep->bEndpointAddress;
prev_ep_addr = p_midi_host->ep_out;
TU_VERIFY(p_midi->ep_out == 0);
TU_VERIFY(p_midi->num_cables_tx == 0);
p_midi->ep_out = p_ep->bEndpointAddress;
prev_ep_addr = p_midi->ep_out;
out_desc = p_ep;
} else {
TU_VERIFY(p_midi_host->ep_in == 0);
TU_VERIFY(p_midi_host->num_cables_rx == 0);
p_midi_host->ep_in = p_ep->bEndpointAddress;
prev_ep_addr = p_midi_host->ep_in;
TU_VERIFY(p_midi->ep_in == 0);
TU_VERIFY(p_midi->num_cables_rx == 0);
p_midi->ep_in = p_ep->bEndpointAddress;
prev_ep_addr = p_midi->ep_in;
in_desc = p_ep;
}
len_parsed += p_mdh->bLength;
@@ -382,28 +295,22 @@ bool midih_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *d
p_desc = tu_desc_next(p_desc);
p_mdh = (midi_desc_header_t const *) p_desc;
}
TU_VERIFY((p_midi_host->ep_out != 0 && p_midi_host->num_cables_tx != 0) ||
(p_midi_host->ep_in != 0 && p_midi_host->num_cables_rx != 0));
TU_LOG1("MIDI descriptor parsed successfully\r\n");
// remove duplicate string indices
for (int idx = 0; idx < p_midi_host->num_string_indices; idx++) {
for (int jdx = idx + 1; jdx < p_midi_host->num_string_indices; jdx++) {
while (jdx < p_midi_host->num_string_indices && p_midi_host->all_string_indices[idx] == p_midi_host->all_string_indices[jdx]) {
// delete the duplicate by overwriting it with the last entry and reducing the number of entries by 1
p_midi_host->all_string_indices[jdx] = p_midi_host->all_string_indices[p_midi_host->num_string_indices - 1];
--p_midi_host->num_string_indices;
}
}
}
TU_VERIFY((p_midi->ep_out != 0 && p_midi->num_cables_tx != 0) ||
(p_midi->ep_in != 0 && p_midi->num_cables_rx != 0));
if (in_desc) {
TU_ASSERT(tuh_edpt_open(dev_addr, in_desc));
tu_edpt_stream_open(&p_midi_host->ep_stream.rx, in_desc);
tu_edpt_stream_open(&p_midi->ep_stream.rx, in_desc);
}
if (out_desc) {
TU_ASSERT(tuh_edpt_open(dev_addr, out_desc));
tu_edpt_stream_open(&p_midi_host->ep_stream.tx, out_desc);
tu_edpt_stream_open(&p_midi->ep_stream.tx, out_desc);
}
p_midi_host->dev_addr = dev_addr;
p_midi->dev_addr = dev_addr;
// if (tuh_midi_interface_descriptor_cb) {
// tuh_midi_interface_descriptor_cb(dev_addr, desc_itf, );
// }
return true;
}
@@ -428,7 +335,7 @@ bool midih_set_config(uint8_t dev_addr, uint8_t itf_num) {
//--------------------------------------------------------------------+
// API
//--------------------------------------------------------------------+
bool tuh_midi_configured(uint8_t dev_addr) {
bool tuh_midi_mounted(uint8_t dev_addr) {
midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr);
TU_VERIFY(p_midi_host != NULL);
return p_midi_host->configured;
@@ -680,69 +587,6 @@ 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)
{
uint8_t index = 0;
uint8_t assoc;
for (assoc = 0; index == 0 && assoc < ptr->next_in_jack; assoc++)
{
if (jack_id == ptr->in_jack_info[assoc].jack_id)
{
index = ptr->in_jack_info[assoc].string_index;
}
}
for (assoc = 0; index == 0 && assoc < ptr->next_out_jack; assoc++)
{
if (jack_id == ptr->out_jack_info[assoc].jack_id)
{
index = ptr->out_jack_info[assoc].string_index;
}
}
return index;
}
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);
uint8_t nstrings = p_midi_host->num_cables_rx;
if (nstrings > max_istrings) {
nstrings = max_istrings;
}
for (uint8_t jack = 0; jack<nstrings; jack++) {
uint8_t jack_id = p_midi_host->ep_in_associated_jacks[jack];
istrings[jack] = find_string_index(p_midi_host, jack_id);
}
return nstrings;
}
uint8_t tuh_midi_get_tx_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);
uint8_t nstrings = p_midi_host->num_cables_tx;
if (nstrings > max_istrings) {
nstrings = max_istrings;
}
for (uint8_t jack = 0; jack<nstrings; jack++) {
uint8_t jack_id = p_midi_host->ep_out_associated_jacks[jack];
istrings[jack] = find_string_index(p_midi_host, jack_id);
}
return nstrings;
}
#endif
uint8_t tuh_midi_get_all_istrings(uint8_t dev_addr, const uint8_t** istrings)
{
midih_interface_t *p_midi_host = find_midi_by_daddr(dev_addr);
TU_VERIFY(p_midi_host != NULL);
uint8_t nstrings = p_midi_host->num_string_indices;
if (nstrings) { *istrings = p_midi_host->all_string_indices; }
return nstrings;
}
#endif
#endif

18
src/class/midi/midi_host.h
View File

@@ -59,14 +59,12 @@
#define CFG_TUH_MIDI_STREAM_API 1
#endif
#ifndef CFG_MIDI_HOST_DEVSTRINGS
#define CFG_MIDI_HOST_DEVSTRINGS 0
#endif
//--------------------------------------------------------------------+
// Application API
//--------------------------------------------------------------------+
bool tuh_midi_configured (uint8_t dev_addr);
// Check if MIDI interface is mounted
bool tuh_midi_mounted(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);
@@ -74,12 +72,6 @@ uint8_t tuh_midi_get_num_rx_cables(uint8_t dev_addr);
// return the number of virtual midi cables on the device's OUT endpoint
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
// 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);
@@ -140,6 +132,10 @@ uint32_t tuh_midi_stream_read (uint8_t dev_addr, uint8_t *p_cable_num, uint8_t *
// Callbacks (Weak is optional)
//--------------------------------------------------------------------+
// Invoked when MIDI interface is detected in enumeration. Application can copy/parse descriptor if needed.
// Note: may be fired before tuh_midi_mount_cb(), therefore midi interface is not mounted/ready.
// TU_ATTR_WEAK void tuh_midi_interface_descriptor_cb(uint8_t dev_addr, const uint8_t* desc_itf, uint16_t desc_len);
// Invoked when device with MIDI interface is mounted.
TU_ATTR_WEAK void tuh_midi_mount_cb(uint8_t dev_addr, uint8_t num_cables_rx, uint16_t num_cables_tx);