This patch adds the initial support for UMP rawmidi access. It's merely the wrapper for the standard rawmidi to access to the UMP rawmidi device.
Signed-off-by: Takashi Iwai tiwai@suse.de --- configure.ac | 1 + include/Makefile.am | 2 +- include/rawmidi.h | 3 + include/ump.h | 119 +++++++ src/Versions.in | 6 + src/rawmidi/Makefile.am | 5 +- src/rawmidi/rawmidi_hw.c | 10 +- src/rawmidi/rawmidi_local.h | 2 + src/rawmidi/ump.c | 616 ++++++++++++++++++++++++++++++++++++ src/rawmidi/ump_local.h | 9 + 10 files changed, 769 insertions(+), 4 deletions(-) create mode 100644 include/ump.h create mode 100644 src/rawmidi/ump.c create mode 100644 src/rawmidi/ump_local.h
diff --git a/configure.ac b/configure.ac index b6266651b9d6..0588eec34f81 100644 --- a/configure.ac +++ b/configure.ac @@ -795,6 +795,7 @@ cat >> include/asoundlib.h <<EOF EOF test "$build_pcm" = "yes" && echo "#include <alsa/pcm.h>" >> include/asoundlib.h test "$build_rawmidi" = "yes" && echo "#include <alsa/rawmidi.h>" >> include/asoundlib.h +test "$build_rawmidi" = "yes" && echo "#include <alsa/ump.h>" >> include/asoundlib.h test "$build_pcm" = "yes" && echo "#include <alsa/timer.h>" >> include/asoundlib.h test "$build_hwdep" = "yes" && echo "#include <alsa/hwdep.h>" >> include/asoundlib.h echo "#include <alsa/control.h>" >> include/asoundlib.h diff --git a/include/Makefile.am b/include/Makefile.am index 9909fb73c7d6..b7f67b250810 100644 --- a/include/Makefile.am +++ b/include/Makefile.am @@ -34,7 +34,7 @@ endif endif
if BUILD_RAWMIDI -alsainclude_HEADERS += rawmidi.h +alsainclude_HEADERS += rawmidi.h ump.h endif
if BUILD_HWDEP diff --git a/include/rawmidi.h b/include/rawmidi.h index 716810536a2e..2630d1e67572 100644 --- a/include/rawmidi.h +++ b/include/rawmidi.h @@ -93,6 +93,9 @@ typedef enum _snd_rawmidi_read_mode { SND_RAWMIDI_READ_TSTAMP = 1, } snd_rawmidi_read_mode_t;
+/** rawmidi info bit flags */ +#define SND_RAWMIDI_INFO_UMP 0x00000008 /* rawmidi is UMP */ + int snd_rawmidi_open(snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi, const char *name, int mode); int snd_rawmidi_open_lconf(snd_rawmidi_t **in_rmidi, snd_rawmidi_t **out_rmidi, diff --git a/include/ump.h b/include/ump.h new file mode 100644 index 000000000000..c79b2335aeff --- /dev/null +++ b/include/ump.h @@ -0,0 +1,119 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +/** + * \file include/ump.h + * \brief API library for ALSA rawmidi/UMP interface + * + * API library for ALSA rawmidi/UMP interface + */ + +#ifndef __ALSA_UMP_H +#define __ALSA_UMP_H + +#ifdef __cplusplus +extern "C" { +#endif + +/** UMP (Endpoint) RawMIDI device */ +typedef struct _snd_ump snd_ump_t; +/** UMP Endpoint information container */ +typedef struct snd_ump_endpoint_info snd_ump_endpoint_info_t; +/** UMP Block information container */ +typedef struct snd_ump_block_info snd_ump_block_info_t; + +int snd_ump_open(snd_ump_t **inputp, snd_ump_t **outputp, const char *name, int mode); +int snd_ump_close(snd_ump_t *ump); +snd_rawmidi_t *snd_ump_rawmidi(snd_ump_t *ump); +const char *snd_ump_name(snd_ump_t *ump); +int snd_ump_poll_descriptors_count(snd_ump_t *ump); +int snd_ump_poll_descriptors(snd_ump_t *ump, struct pollfd *pfds, unsigned int space); +int snd_ump_poll_descriptors_revents(snd_ump_t *ump, struct pollfd *pfds, unsigned int nfds, unsigned short *revents); +int snd_ump_nonblock(snd_ump_t *ump, int nonblock); +int snd_ump_rawmidi_info(snd_ump_t *ump, snd_rawmidi_info_t *info); +int snd_ump_rawmidi_params(snd_ump_t *ump, snd_rawmidi_params_t *params); +int snd_ump_rawmidi_params_current(snd_ump_t *ump, snd_rawmidi_params_t *params); +int snd_ump_rawmidi_status(snd_ump_t *ump, snd_rawmidi_status_t *status); +int snd_ump_drop(snd_ump_t *ump); +int snd_ump_drain(snd_ump_t *ump); +ssize_t snd_ump_write(snd_ump_t *ump, const void *buffer, size_t size); +ssize_t snd_ump_read(snd_ump_t *ump, void *buffer, size_t size); +ssize_t snd_ump_tread(snd_ump_t *ump, struct timespec *tstamp, void *buffer, size_t size); + +/** Max number of UMP Groups */ +#define SND_UMP_MAX_GROUPS 16 +/** Max number of UMP Blocks */ +#define SND_UMP_MAX_BLOCKS 32 + +/** UMP direction */ +enum _snd_ump_direction { + /** Input only */ + SND_UMP_DIR_INPUT = 0x01, + /** Output only */ + SND_UMP_DIR_OUTPUT = 0x02, + /** Bidirectional */ + SND_UMP_DIR_BIDIRECTION = 0x03, +}; + +/** Bitmask for UMP EP MIDI protocols */ +#define SND_UMP_EP_INFO_PROTO_MIDI_MASK 0x0300 +/** Bit flag for MIDI 1.0 protocol */ +#define SND_UMP_EP_INFO_PROTO_MIDI1 0x0100 +/** Bit flag for MIDI 2.0 protocol */ +#define SND_UMP_EP_INFO_PROTO_MIDI2 0x0200 +/** Bitmask for UMP Jitter-reduction timestamp */ +#define SND_UMP_EP_INFO_PROTO_JRTS_MASK 0x0003 +/** Bit flag for JRTS in Transmit */ +#define SND_UMP_EP_INFO_PROTO_JRTS_TX 0x0001 +/** Bit flag for JRTS in Receive */ +#define SND_UMP_EP_INFO_PROTO_JRTS_RX 0x0002 + +size_t snd_ump_endpoint_info_sizeof(void); +/** \hideinitializer + * \brief allocate an invalid #snd_ump_endpoint_info_t using standard alloca + * \param ptr returned pointer + */ +#define snd_ump_endpoint_info_alloca(ptr) __snd_alloca(ptr, snd_ump_endpoint_info) +int snd_ump_endpoint_info_malloc(snd_ump_endpoint_info_t **info); +void snd_ump_endpoint_info_free(snd_ump_endpoint_info_t *info); +void snd_ump_endpoint_info_copy(snd_ump_endpoint_info_t *dst, const snd_ump_endpoint_info_t *src); +int snd_ump_endpoint_info_get_card(const snd_ump_endpoint_info_t *info); +int snd_ump_endpoint_info_get_device(const snd_ump_endpoint_info_t *info); +unsigned int snd_ump_endpoint_info_get_flags(const snd_ump_endpoint_info_t *info); +unsigned int snd_ump_endpoint_info_get_protocol_caps(const snd_ump_endpoint_info_t *info); +unsigned int snd_ump_endpoint_info_get_protocol(const snd_ump_endpoint_info_t *info); +unsigned int snd_ump_endpoint_info_get_num_blocks(const snd_ump_endpoint_info_t *info); +unsigned int snd_ump_endpoint_info_get_version(const snd_ump_endpoint_info_t *info); +const char *snd_ump_endpoint_info_get_name(const snd_ump_endpoint_info_t *info); +const char *snd_ump_endpoint_info_get_product_id(const snd_ump_endpoint_info_t *info); +int snd_ump_endpoint_info(snd_ump_t *ump, snd_ump_endpoint_info_t *info); + +/** Bit flag for MIDI 1.0 port w/o restrict in UMP Block info flags */ +#define SND_UMP_BLOCK_IS_MIDI1 (1U << 0) +/** Bit flag for 31.25Kbps B/W MIDI1 port in UMP Block info flags */ +#define SND_UMP_BLOCK_IS_LOWSPEED (1U << 1) + +size_t snd_ump_block_info_sizeof(void); +/** \hideinitializer + * \brief allocate an invalid #snd_ump_block_info_t using standard alloca + * \param ptr returned pointer + */ +#define snd_ump_block_info_alloca(ptr) __snd_alloca(ptr, snd_ump_block_info) +int snd_ump_block_info_malloc(snd_ump_block_info_t **info); +void snd_ump_block_info_free(snd_ump_block_info_t *info); +void snd_ump_block_info_copy(snd_ump_block_info_t *dst, const snd_ump_block_info_t *src); +int snd_ump_block_info_get_card(const snd_ump_block_info_t *info); +int snd_ump_block_info_get_device(const snd_ump_block_info_t *info); +unsigned int snd_ump_block_info_get_block_id(const snd_ump_block_info_t *info); +void snd_ump_block_info_set_block_id(snd_ump_block_info_t *info, unsigned int id); +unsigned int snd_ump_block_info_get_active(const snd_ump_block_info_t *info); +unsigned int snd_ump_block_info_get_flags(const snd_ump_block_info_t *info); +unsigned int snd_ump_block_info_get_direction(const snd_ump_block_info_t *info); +unsigned int snd_ump_block_info_get_first_group(const snd_ump_block_info_t *info); +unsigned int snd_ump_block_info_get_num_groups(const snd_ump_block_info_t *info); +const char *snd_ump_block_info_get_name(const snd_ump_block_info_t *info); +int snd_ump_block_info(snd_ump_t *ump, snd_ump_block_info_t *info); + +#ifdef __cplusplus +} +#endif + +#endif /* __ALSA_UMP_H */ diff --git a/src/Versions.in b/src/Versions.in index ed7376811d62..3315fa2840e0 100644 --- a/src/Versions.in +++ b/src/Versions.in @@ -148,3 +148,9 @@ ALSA_1.2.9 { @SYMBOL_PREFIX@snd_pcm_hw_params_set_drain_silence; @SYMBOL_PREFIX@snd_pcm_hw_params_get_drain_silence; } ALSA_1.2.6; + +ALSA_1.2.10 { + global: + + @SYMBOL_PREFIX@snd_ump_*; +} ALSA_1.2.9; diff --git a/src/rawmidi/Makefile.am b/src/rawmidi/Makefile.am index 41858a1fb07e..269186597335 100644 --- a/src/rawmidi/Makefile.am +++ b/src/rawmidi/Makefile.am @@ -1,10 +1,11 @@ EXTRA_LTLIBRARIES=librawmidi.la
-librawmidi_la_SOURCES = rawmidi.c rawmidi_hw.c rawmidi_symbols.c +librawmidi_la_SOURCES = rawmidi.c rawmidi_hw.c rawmidi_symbols.c \ + ump.c if BUILD_SEQ librawmidi_la_SOURCES += rawmidi_virt.c endif -noinst_HEADERS = rawmidi_local.h +noinst_HEADERS = rawmidi_local.h ump_local.h
all: librawmidi.la
diff --git a/src/rawmidi/rawmidi_hw.c b/src/rawmidi/rawmidi_hw.c index 69e5e02f1d6a..3119db9d7490 100644 --- a/src/rawmidi/rawmidi_hw.c +++ b/src/rawmidi/rawmidi_hw.c @@ -35,6 +35,7 @@ const char *_snd_module_rawmidi_hw = ""; #endif
#define SNDRV_FILE_RAWMIDI ALSA_DEVICE_DIRECTORY "midiC%iD%i" +#define SNDRV_FILE_UMP_RAWMIDI ALSA_DEVICE_DIRECTORY "umpC%iD%i" #define SNDRV_RAWMIDI_VERSION_MAX SNDRV_PROTOCOL_VERSION(2, 0, 0)
#ifndef DOC_HIDDEN @@ -321,8 +322,12 @@ int snd_rawmidi_hw_open(snd_rawmidi_t **inputp, snd_rawmidi_t **outputp, snd_rawmidi_t *rmidi; snd_rawmidi_hw_t *hw = NULL; snd_rawmidi_info_t info; + int is_ump; int fmode;
+ is_ump = !!(mode & _SND_RAWMIDI_OPEN_UMP); + mode &= ~_SND_RAWMIDI_OPEN_UMP; + if (inputp) *inputp = NULL; if (outputp) @@ -332,7 +337,10 @@ int snd_rawmidi_hw_open(snd_rawmidi_t **inputp, snd_rawmidi_t **outputp, if ((ret = snd_ctl_hw_open(&ctl, NULL, card, 0)) < 0) return ret; - sprintf(filename, SNDRV_FILE_RAWMIDI, card, device); + if (is_ump) + sprintf(filename, SNDRV_FILE_UMP_RAWMIDI, card, device); + else + sprintf(filename, SNDRV_FILE_RAWMIDI, card, device);
__again: if (attempt++ > 3) { diff --git a/src/rawmidi/rawmidi_local.h b/src/rawmidi/rawmidi_local.h index 7025542f6774..19dbf72584fa 100644 --- a/src/rawmidi/rawmidi_local.h +++ b/src/rawmidi/rawmidi_local.h @@ -67,3 +67,5 @@ int snd_rawmidi_virtual_open(snd_rawmidi_t **inputp, snd_rawmidi_t **outputp,
int _snd_rawmidi_ump_endpoint_info(snd_rawmidi_t *rmidi, void *info); int _snd_rawmidi_ump_block_info(snd_rawmidi_t *rmidi, void *info); + +#define _SND_RAWMIDI_OPEN_UMP (1U << 16) /* internal open mode bit */ diff --git a/src/rawmidi/ump.c b/src/rawmidi/ump.c new file mode 100644 index 000000000000..5da79459f618 --- /dev/null +++ b/src/rawmidi/ump.c @@ -0,0 +1,616 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +/** + * \file rawmidi/ump.c + * \brief Universal MIDI Protocol (UMP) Interface + */ + +#include <stdio.h> +#include <stdlib.h> +#include <limits.h> +#include "local.h" +#include "rawmidi_local.h" +#include "ump_local.h" + +static int get_rawmidi_flags(snd_ump_t *ump) +{ + snd_rawmidi_info_t info; + int err; + + err = snd_rawmidi_info(ump->rawmidi, &info); + if (err < 0) + return err; + if (!(info.flags & SNDRV_RAWMIDI_INFO_UMP)) + return -EINVAL; + ump->flags = info.flags; + return 0; +} + +/** + * \brief Opens a new connection to the UMP interface. + * \param inputp Returned input handle (NULL if not wanted) + * \param outputp Returned output handle (NULL if not wanted) + * \param name ASCII identifier of the UMP handle + * \param mode Open mode + * \return 0 on success otherwise a negative error code + * + * Opens a new connection to the UMP interface specified with + * an ASCII identifier and mode. + */ +int snd_ump_open(snd_ump_t **inputp, snd_ump_t **outputp, const char *name, + int mode) +{ + snd_ump_t *input = NULL, *output = NULL; + int err; + + if (inputp) + *inputp = NULL; + if (outputp) + *outputp = NULL; + if (!inputp && !outputp) + return -EINVAL; + + err = -ENOMEM; + if (inputp) { + input = calloc(1, sizeof(*input)); + if (!input) + goto error; + input->is_input = 1; + } + if (outputp) { + output = calloc(1, sizeof(*output)); + if (!output) + goto error; + } + + err = snd_rawmidi_open(input ? &input->rawmidi : NULL, + output ? &output->rawmidi : NULL, + name, mode | _SND_RAWMIDI_OPEN_UMP); + if (err < 0) + goto error; + + if (input) { + err = get_rawmidi_flags(input); + if (err < 0) + goto error; + } + if (output) { + err = get_rawmidi_flags(output); + if (err < 0) + goto error; + } + + if (inputp) + *inputp = input; + if (outputp) + *outputp = output; + + return 0; + + error: + if (input) { + if (input->rawmidi) + snd_rawmidi_close(input->rawmidi); + free(input); + } + if (output) { + if (output->rawmidi) + snd_rawmidi_close(output->rawmidi); + free(output); + } + return err; +} + +/** + * \brief close UMP handle + * \param ump UMP handle + * \return 0 on success otherwise a negative error code + * + * Closes the specified UMP handle and frees all associated + * resources. + */ +int snd_ump_close(snd_ump_t *ump) +{ + int err; + + err = snd_rawmidi_close(ump->rawmidi); + free(ump); + return err; +} + +/** + * \brief get RawMidi instance associated with the UMP handle + * \param ump UMP handle + * \return the associated RawMidi handle + * + * Returns the associated RawMidi instance with the given UMP handle + */ +snd_rawmidi_t *snd_ump_rawmidi(snd_ump_t *ump) +{ + return ump->rawmidi; +} + +/** + * \brief get identifier of UMP handle + * \param ump UMP handle + * \return ascii identifier of UMP handle + * + * Returns the ASCII identifier of given UMP handle. It's the same + * identifier specified in snd_ump_open(). + */ +const char *snd_ump_name(snd_ump_t *ump) +{ + return snd_rawmidi_name(ump->rawmidi); +} + +/** + * \brief get count of poll descriptors for UMP handle + * \param ump UMP handle + * \return count of poll descriptors + */ +int snd_ump_poll_descriptors_count(snd_ump_t *ump) +{ + return snd_rawmidi_poll_descriptors_count(ump->rawmidi); +} + +/** + * \brief get poll descriptors + * \param ump UMP handle + * \param pfds array of poll descriptors + * \param space space in the poll descriptor array + * \return count of filled descriptors + */ +int snd_ump_poll_descriptors(snd_ump_t *ump, struct pollfd *pfds, + unsigned int space) +{ + return snd_rawmidi_poll_descriptors(ump->rawmidi, pfds, space); +} + +/** + * \brief get returned events from poll descriptors + * \param ump UMP handle + * \param pfds array of poll descriptors + * \param nfds count of poll descriptors + * \param revents returned events + * \return zero if success, otherwise a negative error code + */ +int snd_ump_poll_descriptors_revents(snd_ump_t *ump, struct pollfd *pfds, + unsigned int nfds, unsigned short *revents) +{ + return snd_rawmidi_poll_descriptors_revents(ump->rawmidi, pfds, nfds, + revents); +} + +/** + * \brief set nonblock mode + * \param ump UMP handle + * \param nonblock 0 = block, 1 = nonblock mode + * \return 0 on success otherwise a negative error code + * + * The nonblock mode cannot be used when the stream is in + * #SND_RAWMIDI_APPEND state. + */ +int snd_ump_nonblock(snd_ump_t *ump, int nonblock) +{ + return snd_rawmidi_nonblock(ump->rawmidi, nonblock); +} + +/** + * \brief get information about associated RawMidi handle + * \param ump UMP handle + * \param info pointer to a snd_rawmidi_info_t structure to be filled + * \return 0 on success otherwise a negative error code + */ +int snd_ump_rawmidi_info(snd_ump_t *ump, snd_rawmidi_info_t *info) +{ + return snd_rawmidi_info(ump->rawmidi, info); +} + +/** + * \brief set parameters about associated RawMidi stream + * \param ump UMP handle + * \param params pointer to a snd_rawmidi_params_t structure to be filled + * \return 0 on success otherwise a negative error code + */ +int snd_ump_rawmidi_params(snd_ump_t *ump, snd_rawmidi_params_t *params) +{ + return snd_rawmidi_params(ump->rawmidi, params); +} + +/** + * \brief get current parameters about associated RawMidi stream + * \param ump UMP handle + * \param params pointer to a snd_rawmidi_params_t structure to be filled + * \return 0 on success otherwise a negative error code + */ +int snd_ump_rawmidi_params_current(snd_ump_t *ump, snd_rawmidi_params_t *params) +{ + return snd_rawmidi_params_current(ump->rawmidi, params); +} + +/** + * \brief get status of associated RawMidi stream + * \param ump UMP handle + * \param status pointer to a snd_rawmidi_status_t structure to be filled + * \return 0 on success otherwise a negative error code + */ +int snd_ump_rawmidi_status(snd_ump_t *ump, snd_rawmidi_status_t *status) +{ + return snd_rawmidi_status(ump->rawmidi, status); +} + +/** + * \brief drop all packets in the rawmidi I/O ring buffer immediately + * \param ump UMP handle + * \return 0 on success otherwise a negative error code + */ +int snd_ump_drop(snd_ump_t *ump) +{ + return snd_rawmidi_drop(ump->rawmidi); +} + +/** + * \brief drain all packets in the UMP I/O ring buffer + * \param ump UMP handle + * \return 0 on success otherwise a negative error code + * + * Waits until all MIDI packets are not drained (sent) to the + * hardware device. + */ +int snd_ump_drain(snd_ump_t *ump) +{ + return snd_rawmidi_drain(ump->rawmidi); +} + +/** + * \brief write UMP packets to UMP stream + * \param ump UMP handle + * \param buffer buffer containing UMP packets + * \param size output buffer size in bytes + */ +ssize_t snd_ump_write(snd_ump_t *ump, const void *buffer, size_t size) +{ + if (ump->is_input) + return -EINVAL; + return snd_rawmidi_write(ump->rawmidi, buffer, size); +} + +/** + * \brief read UMP packets from UMP stream + * \param ump UMP handle + * \param buffer buffer to store the input MIDI bytes + * \param size input buffer size in bytes + * \retval count of UMP packet in bytes otherwise a negative error code + */ +ssize_t snd_ump_read(snd_ump_t *ump, void *buffer, size_t size) +{ + if (!ump->is_input) + return -EINVAL; + return snd_rawmidi_read(ump->rawmidi, buffer, size); +} + +/** + * \brief read UMP packets from UMP stream with timestamp + * \param ump UMP handle + * \param[out] tstamp timestamp for the returned UMP packets + * \param buffer buffer to store the input UMP packets + * \param size input buffer size in bytes + * \retval count of UMP packet in bytes otherwise a negative error code + */ +ssize_t snd_ump_tread(snd_ump_t *ump, struct timespec *tstamp, void *buffer, + size_t size) +{ + if (!ump->is_input) + return -EINVAL; + return snd_rawmidi_tread(ump->rawmidi, tstamp, buffer, size); +} + +/** + * \brief get size of the snd_ump_endpoint_info_t structure in bytes + * \return size of the snd_ump_endpoint_info_t structure in bytes + */ +size_t snd_ump_endpoint_info_sizeof(void) +{ + return sizeof(snd_ump_endpoint_info_t); +} + +/** + * \brief allocate the snd_ump_endpoint_info_t structure + * \param ptr returned pointer + * \return 0 on success otherwise a negative error code if fails + * + * Allocates a new snd_rawmidi_status_t structure using the standard + * malloc C library function. + */ +int snd_ump_endpoint_info_malloc(snd_ump_endpoint_info_t **info) +{ + *info = calloc(1, sizeof(snd_ump_endpoint_info_t)); + if (!*info) + return -ENOMEM; + return 0; +} + +/** + * \brief frees the snd_ump_endpoint_info_t structure + * \param status pointer to the snd_ump_endpoint_info_t structure to free + * + * Frees the given snd_ump_endpoint_info_t structure using the standard + * free C library function. + */ +void snd_ump_endpoint_info_free(snd_ump_endpoint_info_t *info) +{ + free(info); +} + +/** + * \brief copy one snd_ump_endpoint_info_t structure to another + * \param dst destination snd_ump_endpoint_info_t structure + * \param src source snd_ump_endpoint_info_t structure + */ +void snd_ump_endpoint_info_copy(snd_ump_endpoint_info_t *dst, + const snd_ump_endpoint_info_t *src) +{ + *dst = *src; +} + +/** + * \brief get card number of UMP endpoint + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return the card number of the given UMP endpoint + */ +int snd_ump_endpoint_info_get_card(const snd_ump_endpoint_info_t *info) +{ + return info->card; +} + +/** + * \brief get device number of UMP endpoint + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return the device number of the given UMP endpoint + */ +int snd_ump_endpoint_info_get_device(const snd_ump_endpoint_info_t *info) +{ + return info->device; +} + +/** + * \brief get UMP endpoint info flags + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return UMP endpoint flag bits + */ +unsigned int snd_ump_endpoint_info_get_flags(const snd_ump_endpoint_info_t *info) +{ + return info->flags; +} + +/** + * \brief get UMP endpoint protocol capability bits + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return UMP endpoint protocol capability bits + */ +unsigned int snd_ump_endpoint_info_get_protocol_caps(const snd_ump_endpoint_info_t *info) +{ + return info->protocol_caps; +} + +/** + * \brief get the current UMP endpoint protocol + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return UMP endpoint protocol bits + */ +unsigned int snd_ump_endpoint_info_get_protocol(const snd_ump_endpoint_info_t *info) +{ + return info->protocol; +} + +/** + * \brief get the number of UMP blocks belonging to the endpoint + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return number of UMP blocks + */ +unsigned int snd_ump_endpoint_info_get_num_blocks(const snd_ump_endpoint_info_t *info) +{ + return info->num_blocks; +} + +/** + * \brief get UMP version number + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return UMP version number + */ +unsigned int snd_ump_endpoint_info_get_version(const snd_ump_endpoint_info_t *info) +{ + return info->version; +} + +/** + * \brief get UMP endpoint name string + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return UMP endpoint name string + */ +const char *snd_ump_endpoint_info_get_name(const snd_ump_endpoint_info_t *info) +{ + return (const char *)info->name; +} + +/** + * \brief get UMP endpoint product ID string + * \param info pointer to a snd_ump_endpoint_info_t structure + * \return UMP endpoint product ID string + */ +const char *snd_ump_endpoint_info_get_product_id(const snd_ump_endpoint_info_t *info) +{ + return (const char *)info->product_id; +} + +/** + * \brief get endpoint information about UMP handle + * \param ump UMP handle + * \param info pointer to a snd_ump_endpoint_info_t structure to be filled + * \return 0 on success otherwise a negative error code + */ +int snd_ump_endpoint_info(snd_ump_t *ump, snd_ump_endpoint_info_t *info) +{ + return _snd_rawmidi_ump_endpoint_info(ump->rawmidi, info); +} + +/** + * \brief get size of the snd_ump_block_info_t structure in bytes + * \return size of the snd_ump_block_info_t structure in bytes + */ +size_t snd_ump_block_info_sizeof(void) +{ + return sizeof(snd_ump_block_info_t); +} + +/** + * \brief allocate the snd_ump_block_info_t structure + * \param ptr returned pointer + * \return 0 on success otherwise a negative error code if fails + * + * Allocates a new snd_ump_block_info_t structure using the standard + * malloc C library function. + */ +int snd_ump_block_info_malloc(snd_ump_block_info_t **info) +{ + *info = calloc(1, sizeof(snd_ump_block_info_t)); + if (!*info) + return -ENOMEM; + return 0; +} + +/** + * \brief frees the snd_ump_block_info_t structure + * \param status pointer to the snd_ump_block_info_t structure to free + * + * Frees the given snd_ump_block_info_t structure using the standard + * free C library function. + */ +void snd_ump_block_info_free(snd_ump_block_info_t *info) +{ + free(info); +} + +/** + * \brief copy one snd_ump_block_info_t structure to another + * \param dst destination snd_ump_block_info_t structure + * \param src source snd_ump_block_info_t structure + */ +void snd_ump_block_info_copy(snd_ump_block_info_t *dst, + const snd_ump_block_info_t *src) +{ + *dst = *src; +} + +/** + * \brief get card number of UMP block + * \param info pointer to a snd_ump_block_info_t structure + * \return the card number of the given UMP block + */ +int snd_ump_block_info_get_card(const snd_ump_block_info_t *info) +{ + return info->card; +} + +/** + * \brief get device number of UMP block + * \param info pointer to a snd_ump_block_info_t structure + * \return the device number of the given UMP block + */ +int snd_ump_block_info_get_device(const snd_ump_block_info_t *info) +{ + return info->device; +} + +/** + * \brief get UMP block ID + * \param info pointer to a snd_ump_block_info_t structure + * \return ID number of the given UMP block + */ +unsigned int snd_ump_block_info_get_block_id(const snd_ump_block_info_t *info) +{ + return info->block_id; +} + +/** + * \brief set UMP block ID for query + * \param info pointer to a snd_ump_block_info_t structure + * \param id the ID number for query + */ +void snd_ump_block_info_set_block_id(snd_ump_block_info_t *info, + unsigned int id) +{ + info->block_id = id; +} + +/** + * \brief get UMP block activeness + * \param info pointer to a snd_ump_block_info_t structure + * \return 1 if the block is active or 0 if inactive + */ +unsigned int snd_ump_block_info_get_active(const snd_ump_block_info_t *info) +{ + return info->active; +} + +/** + * \brief get UMP block information flags + * \param info pointer to a snd_ump_block_info_t structure + * \return info flag bits for the given UMP block + */ +unsigned int snd_ump_block_info_get_flags(const snd_ump_block_info_t *info) +{ + return info->flags; +} + +/** + * \brief get UMP block direction + * \param info pointer to a snd_ump_block_info_t structure + * \return direction of UMP block (input,output,bidirectional) + */ +unsigned int snd_ump_block_info_get_direction(const snd_ump_block_info_t *info) +{ + return info->direction; +} + +/** + * \brief get first UMP group ID belonging to the block + * \param info pointer to a snd_ump_block_info_t structure + * \return the first UMP group ID belonging to the block + */ +unsigned int snd_ump_block_info_get_first_group(const snd_ump_block_info_t *info) +{ + return info->first_group; +} + +/** + * \brief get number of UMP groups belonging to the block + * \param info pointer to a snd_ump_block_info_t structure + * \return the number of UMP groups belonging to the block + */ +unsigned int snd_ump_block_info_get_num_groups(const snd_ump_block_info_t *info) +{ + return info->num_groups; +} + +/** + * \brief get the name string of UMP block + * \param info pointer to a snd_ump_block_info_t structure + * \return the name string of UMP block + */ +const char *snd_ump_block_info_get_name(const snd_ump_block_info_t *info) +{ + return (const char *)info->name; +} + +/** + * \brief get UMP block information + * \param info pointer to a snd_ump_block_info_t structure + * \return 0 on success otherwise a negative error code + * + * The caller should fill the block ID to query at first via + * snd_ump_block_info_set_block_id(). + */ +int snd_ump_block_info(snd_ump_t *ump, snd_ump_block_info_t *info) +{ + return _snd_rawmidi_ump_block_info(ump->rawmidi, info); +} diff --git a/src/rawmidi/ump_local.h b/src/rawmidi/ump_local.h new file mode 100644 index 000000000000..424051ae688b --- /dev/null +++ b/src/rawmidi/ump_local.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#include "rawmidi.h" +#include "ump.h" + +struct _snd_ump { + snd_rawmidi_t *rawmidi; + unsigned int flags; + int is_input; +};