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C/C++ Source or Header | 2006-08-11 | 46.5 KB | 1,319 lines

#ifndef SOUNDCARD_H #define SOUNDCARD_H /* * Copyright by Hannu Savolainen 1993-1997 * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. 2. * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * OSS interface version. With versions earlier than 3.6 this value is * an integer with value less than 361. In versions 3.6 and later * it's a six digit hexadecimal value. For example value * of 0x030600 represents OSS version 3.6.0. * Use ioctl(fd, OSS_GETVERSION, &int) to get the version number of * the currently active driver. */ #define SOUND_VERSION 0x030802 #define OPEN_SOUND_SYSTEM /* In Linux we need to be prepared for cross compiling */ #include <linux/ioctl.h> /* Endian macros. */ #ifdef __KERNEL__ # include <asm/byteorder.h> #else # include <endian.h> #endif /* * Supported card ID numbers (Should be somewhere else?) */ #define SNDCARD_ADLIB 1 #define SNDCARD_SB 2 #define SNDCARD_PAS 3 #define SNDCARD_GUS 4 #define SNDCARD_MPU401 5 #define SNDCARD_SB16 6 #define SNDCARD_SB16MIDI 7 #define SNDCARD_UART6850 8 #define SNDCARD_GUS16 9 #define SNDCARD_MSS 10 #define SNDCARD_PSS 11 #define SNDCARD_SSCAPE 12 #define SNDCARD_PSS_MPU 13 #define SNDCARD_PSS_MSS 14 #define SNDCARD_SSCAPE_MSS 15 #define SNDCARD_TRXPRO 16 #define SNDCARD_TRXPRO_SB 17 #define SNDCARD_TRXPRO_MPU 18 #define SNDCARD_MAD16 19 #define SNDCARD_MAD16_MPU 20 #define SNDCARD_CS4232 21 #define SNDCARD_CS4232_MPU 22 #define SNDCARD_MAUI 23 #define SNDCARD_PSEUDO_MSS 24 #define SNDCARD_GUSPNP 25 #define SNDCARD_UART401 26 /* Sound card numbers 27 to N are reserved. Don't add more numbers here. */ /*********************************** * IOCTL Commands for /dev/sequencer */ #ifndef _SIOWR #if defined(_IOWR) && (defined(_AIX) || (!defined(sun) && !defined(sparc) && !defined(__sparc__) && !defined(__INCioctlh) && !defined(__Lynx__))) /* Use already defined ioctl defines if they exist (except with Sun or Sparc) */ #define SIOCPARM_MASK IOCPARM_MASK #define SIOC_VOID IOC_VOID #define SIOC_OUT IOC_OUT #define SIOC_IN IOC_IN #define SIOC_INOUT IOC_INOUT #define _SIOC_SIZE _IOC_SIZE #define _SIOC_DIR _IOC_DIR #define _SIOC_NONE _IOC_NONE #define _SIOC_READ _IOC_READ #define _SIOC_WRITE _IOC_WRITE #define _SIO _IO #define _SIOR _IOR #define _SIOW _IOW #define _SIOWR _IOWR #else /* Ioctl's have the command encoded in the lower word, * and the size of any in or out parameters in the upper * word. The high 2 bits of the upper word are used * to encode the in/out status of the parameter; for now * we restrict parameters to at most 8191 bytes. */ /* #define SIOCTYPE (0xff<<8) */ #define SIOCPARM_MASK 0x1fff /* parameters must be < 8192 bytes */ #define SIOC_VOID 0x00000000 /* no parameters */ #define SIOC_OUT 0x20000000 /* copy out parameters */ #define SIOC_IN 0x40000000 /* copy in parameters */ #define SIOC_INOUT (SIOC_IN|SIOC_OUT) /* the 0x20000000 is so we can distinguish new ioctl's from old */ #define _SIO(x,y) ((int)(SIOC_VOID|(x<<8)|y)) #define _SIOR(x,y,t) ((int)(SIOC_OUT|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y)) #define _SIOW(x,y,t) ((int)(SIOC_IN|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y)) /* this should be _SIORW, but stdio got there first */ #define _SIOWR(x,y,t) ((int)(SIOC_INOUT|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y)) #define _SIOC_SIZE(x) ((x>>16)&SIOCPARM_MASK) #define _SIOC_DIR(x) (x & 0xf0000000) #define _SIOC_NONE SIOC_VOID #define _SIOC_READ SIOC_OUT #define _SIOC_WRITE SIOC_IN # endif /* _IOWR */ #endif /* !_SIOWR */ #define SNDCTL_SEQ_RESET _SIO ('Q', 0) #define SNDCTL_SEQ_SYNC _SIO ('Q', 1) #define SNDCTL_SYNTH_INFO _SIOWR('Q', 2, struct synth_info) #define SNDCTL_SEQ_CTRLRATE _SIOWR('Q', 3, int) /* Set/get timer resolution (HZ) */ #define SNDCTL_SEQ_GETOUTCOUNT _SIOR ('Q', 4, int) #define SNDCTL_SEQ_GETINCOUNT _SIOR ('Q', 5, int) #define SNDCTL_SEQ_PERCMODE _SIOW ('Q', 6, int) #define SNDCTL_FM_LOAD_INSTR _SIOW ('Q', 7, struct sbi_instrument) /* Obsolete. Don't use!!!!!! */ #define SNDCTL_SEQ_TESTMIDI _SIOW ('Q', 8, int) #define SNDCTL_SEQ_RESETSAMPLES _SIOW ('Q', 9, int) #define SNDCTL_SEQ_NRSYNTHS _SIOR ('Q',10, int) #define SNDCTL_SEQ_NRMIDIS _SIOR ('Q',11, int) #define SNDCTL_MIDI_INFO _SIOWR('Q',12, struct midi_info) #define SNDCTL_SEQ_THRESHOLD _SIOW ('Q',13, int) #define SNDCTL_SYNTH_MEMAVL _SIOWR('Q',14, int) /* in=dev#, out=memsize */ #define SNDCTL_FM_4OP_ENABLE _SIOW ('Q',15, int) /* in=dev# */ #define SNDCTL_SEQ_PANIC _SIO ('Q',17) #define SNDCTL_SEQ_OUTOFBAND _SIOW ('Q',18, struct seq_event_rec) #define SNDCTL_SEQ_GETTIME _SIOR ('Q',19, int) #define SNDCTL_SYNTH_ID _SIOWR('Q',20, struct synth_info) #define SNDCTL_SYNTH_CONTROL _SIOWR('Q',21, struct synth_control) #define SNDCTL_SYNTH_REMOVESAMPLE _SIOWR('Q',22, struct remove_sample) typedef struct synth_control { int devno; /* Synthesizer # */ char data[4000]; /* Device spesific command/data record */ }synth_control; typedef struct remove_sample { int devno; /* Synthesizer # */ int bankno; /* MIDI bank # (0=General MIDI) */ int instrno; /* MIDI instrument number */ } remove_sample; typedef struct seq_event_rec { unsigned char arr[8]; } seq_event_rec; #define SNDCTL_TMR_TIMEBASE _SIOWR('T', 1, int) #define SNDCTL_TMR_START _SIO ('T', 2) #define SNDCTL_TMR_STOP _SIO ('T', 3) #define SNDCTL_TMR_CONTINUE _SIO ('T', 4) #define SNDCTL_TMR_TEMPO _SIOWR('T', 5, int) #define SNDCTL_TMR_SOURCE _SIOWR('T', 6, int) # define TMR_INTERNAL 0x00000001 # define TMR_EXTERNAL 0x00000002 # define TMR_MODE_MIDI 0x00000010 # define TMR_MODE_FSK 0x00000020 # define TMR_MODE_CLS 0x00000040 # define TMR_MODE_SMPTE 0x00000080 #define SNDCTL_TMR_METRONOME _SIOW ('T', 7, int) #define SNDCTL_TMR_SELECT _SIOW ('T', 8, int) /* * Some big endian/little endian handling macros */ #define _LINUX_PATCHKEY_H_INDIRECT #include <linux/patchkey.h> #undef _LINUX_PATCHKEY_H_INDIRECT #if defined(__KERNEL__) # if defined(__BIG_ENDIAN) # define AFMT_S16_NE AFMT_S16_BE # elif defined(__LITTLE_ENDIAN) # define AFMT_S16_NE AFMT_S16_LE # else # error "could not determine byte order" # endif #elif defined(__BYTE_ORDER) # if __BYTE_ORDER == __BIG_ENDIAN # define AFMT_S16_NE AFMT_S16_BE # elif __BYTE_ORDER == __LITTLE_ENDIAN # define AFMT_S16_NE AFMT_S16_LE # else # error "could not determine byte order" # endif #endif /* * Sample loading mechanism for internal synthesizers (/dev/sequencer) * The following patch_info structure has been designed to support * Gravis UltraSound. It tries to be universal format for uploading * sample based patches but is probably too limited. * * (PBD) As Hannu guessed, the GUS structure is too limited for * the WaveFront, but this is the right place for a constant definition. */ struct patch_info { unsigned short key; /* Use WAVE_PATCH here */ #define WAVE_PATCH _PATCHKEY(0x04) #define GUS_PATCH WAVE_PATCH #define WAVEFRONT_PATCH _PATCHKEY(0x06) short device_no; /* Synthesizer number */ short instr_no; /* Midi pgm# */ unsigned int mode; /* * The least significant byte has the same format than the GUS .PAT * files */ #define WAVE_16_BITS 0x01 /* bit 0 = 8 or 16 bit wave data. */ #define WAVE_UNSIGNED 0x02 /* bit 1 = Signed - Unsigned data. */ #define WAVE_LOOPING 0x04 /* bit 2 = looping enabled-1. */ #define WAVE_BIDIR_LOOP 0x08 /* bit 3 = Set is bidirectional looping. */ #define WAVE_LOOP_BACK 0x10 /* bit 4 = Set is looping backward. */ #define WAVE_SUSTAIN_ON 0x20 /* bit 5 = Turn sustaining on. (Env. pts. 3)*/ #define WAVE_ENVELOPES 0x40 /* bit 6 = Enable envelopes - 1 */ #define WAVE_FAST_RELEASE 0x80 /* bit 7 = Shut off immediately after note off */ /* (use the env_rate/env_offs fields). */ /* Linux specific bits */ #define WAVE_VIBRATO 0x00010000 /* The vibrato info is valid */ #define WAVE_TREMOLO 0x00020000 /* The tremolo info is valid */ #define WAVE_SCALE 0x00040000 /* The scaling info is valid */ #define WAVE_FRACTIONS 0x00080000 /* Fraction information is valid */ /* Reserved bits */ #define WAVE_ROM 0x40000000 /* For future use */ #define WAVE_MULAW 0x20000000 /* For future use */ /* Other bits must be zeroed */ int len; /* Size of the wave data in bytes */ int loop_start, loop_end; /* Byte offsets from the beginning */ /* * The base_freq and base_note fields are used when computing the * playback speed for a note. The base_note defines the tone frequency * which is heard if the sample is played using the base_freq as the * playback speed. * * The low_note and high_note fields define the minimum and maximum note * frequencies for which this sample is valid. It is possible to define * more than one samples for an instrument number at the same time. The * low_note and high_note fields are used to select the most suitable one. * * The fields base_note, high_note and low_note should contain * the note frequency multiplied by 1000. For example value for the * middle A is 440*1000. */ unsigned int base_freq; unsigned int base_note; unsigned int high_note; unsigned int low_note; int panning; /* -128=left, 127=right */ int detuning; /* New fields introduced in version 1.99.5 */ /* Envelope. Enabled by mode bit WAVE_ENVELOPES */ unsigned char env_rate[ 6 ]; /* GUS HW ramping rate */ unsigned char env_offset[ 6 ]; /* 255 == 100% */ /* * The tremolo, vibrato and scale info are not supported yet. * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or * WAVE_SCALE */ unsigned char tremolo_sweep; unsigned char tremolo_rate; unsigned char tremolo_depth; unsigned char vibrato_sweep; unsigned char vibrato_rate; unsigned char vibrato_depth; int scale_frequency; unsigned int scale_factor; /* from 0 to 2048 or 0 to 2 */ int volume; int fractions; int reserved1; int spare[2]; char data[1]; /* The waveform data starts here */ }; struct sysex_info { short key; /* Use SYSEX_PATCH or MAUI_PATCH here */ #define SYSEX_PATCH _PATCHKEY(0x05) #define MAUI_PATCH _PATCHKEY(0x06) short device_no; /* Synthesizer number */ int len; /* Size of the sysex data in bytes */ unsigned char data[1]; /* Sysex data starts here */ }; /* * /dev/sequencer input events. * * The data written to the /dev/sequencer is a stream of events. Events * are records of 4 or 8 bytes. The first byte defines the size. * Any number of events can be written with a write call. There * is a set of macros for sending these events. Use these macros if you * want to maximize portability of your program. * * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events. * (All input events are currently 4 bytes long. Be prepared to support * 8 byte events also. If you receive any event having first byte >= 128, * it's a 8 byte event. * * The events are documented at the end of this file. * * Normal events (4 bytes) * There is also a 8 byte version of most of the 4 byte events. The * 8 byte one is recommended. */ #define SEQ_NOTEOFF 0 #define SEQ_FMNOTEOFF SEQ_NOTEOFF /* Just old name */ #define SEQ_NOTEON 1 #define SEQ_FMNOTEON SEQ_NOTEON #define SEQ_WAIT TMR_WAIT_ABS #define SEQ_PGMCHANGE 3 #define SEQ_FMPGMCHANGE SEQ_PGMCHANGE #define SEQ_SYNCTIMER TMR_START #define SEQ_MIDIPUTC 5 #define SEQ_DRUMON 6 /*** OBSOLETE ***/ #define SEQ_DRUMOFF 7 /*** OBSOLETE ***/ #define SEQ_ECHO TMR_ECHO /* For synching programs with output */ #define SEQ_AFTERTOUCH 9 #define SEQ_CONTROLLER 10 /******************************************* * Midi controller numbers ******************************************* * Controllers 0 to 31 (0x00 to 0x1f) and * 32 to 63 (0x20 to 0x3f) are continuous * controllers. * In the MIDI 1.0 these controllers are sent using * two messages. Controller numbers 0 to 31 are used * to send the MSB and the controller numbers 32 to 63 * are for the LSB. Note that just 7 bits are used in MIDI bytes. */ #define CTL_BANK_SELECT 0x00 #define CTL_MODWHEEL 0x01 #define CTL_BREATH 0x02 /* undefined 0x03 */ #define CTL_FOOT 0x04 #define CTL_PORTAMENTO_TIME 0x05 #define CTL_DATA_ENTRY 0x06 #define CTL_MAIN_VOLUME 0x07 #define CTL_BALANCE 0x08 /* undefined 0x09 */ #define CTL_PAN 0x0a #define CTL_EXPRESSION 0x0b /* undefined 0x0c */ /* undefined 0x0d */ /* undefined 0x0e */ /* undefined 0x0f */ #define CTL_GENERAL_PURPOSE1 0x10 #define CTL_GENERAL_PURPOSE2 0x11 #define CTL_GENERAL_PURPOSE3 0x12 #define CTL_GENERAL_PURPOSE4 0x13 /* undefined 0x14 - 0x1f */ /* undefined 0x20 */ /* The controller numbers 0x21 to 0x3f are reserved for the */ /* least significant bytes of the controllers 0x00 to 0x1f. */ /* These controllers are not recognised by the driver. */ /* Controllers 64 to 69 (0x40 to 0x45) are on/off switches. */ /* 0=OFF and 127=ON (intermediate values are possible) */ #define CTL_DAMPER_PEDAL 0x40 #define CTL_SUSTAIN 0x40 /* Alias */ #define CTL_HOLD 0x40 /* Alias */ #define CTL_PORTAMENTO 0x41 #define CTL_SOSTENUTO 0x42 #define CTL_SOFT_PEDAL 0x43 /* undefined 0x44 */ #define CTL_HOLD2 0x45 /* undefined 0x46 - 0x4f */ #define CTL_GENERAL_PURPOSE5 0x50 #define CTL_GENERAL_PURPOSE6 0x51 #define CTL_GENERAL_PURPOSE7 0x52 #define CTL_GENERAL_PURPOSE8 0x53 /* undefined 0x54 - 0x5a */ #define CTL_EXT_EFF_DEPTH 0x5b #define CTL_TREMOLO_DEPTH 0x5c #define CTL_CHORUS_DEPTH 0x5d #define CTL_DETUNE_DEPTH 0x5e #define CTL_CELESTE_DEPTH 0x5e /* Alias for the above one */ #define CTL_PHASER_DEPTH 0x5f #define CTL_DATA_INCREMENT 0x60 #define CTL_DATA_DECREMENT 0x61 #define CTL_NONREG_PARM_NUM_LSB 0x62 #define CTL_NONREG_PARM_NUM_MSB 0x63 #define CTL_REGIST_PARM_NUM_LSB 0x64 #define CTL_REGIST_PARM_NUM_MSB 0x65 /* undefined 0x66 - 0x78 */ /* reserved 0x79 - 0x7f */ /* Pseudo controllers (not midi compatible) */ #define CTRL_PITCH_BENDER 255 #define CTRL_PITCH_BENDER_RANGE 254 #define CTRL_EXPRESSION 253 /* Obsolete */ #define CTRL_MAIN_VOLUME 252 /* Obsolete */ #define SEQ_BALANCE 11 #define SEQ_VOLMODE 12 /* * Volume mode decides how volumes are used */ #define VOL_METHOD_ADAGIO 1 #define VOL_METHOD_LINEAR 2 /* * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as * input events. */ /* * Event codes 0xf0 to 0xfc are reserved for future extensions. */ #define SEQ_FULLSIZE 0xfd /* Long events */ /* * SEQ_FULLSIZE events are used for loading patches/samples to the * synthesizer devices. These events are passed directly to the driver * of the associated synthesizer device. There is no limit to the size * of the extended events. These events are not queued but executed * immediately when the write() is called (execution can take several * seconds of time). * * When a SEQ_FULLSIZE message is written to the device, it must * be written using exactly one write() call. Other events cannot * be mixed to the same write. * * For FM synths (YM3812/OPL3) use struct sbi_instrument and write it to the * /dev/sequencer. Don't write other data together with the instrument structure * Set the key field of the structure to FM_PATCH. The device field is used to * route the patch to the corresponding device. * * For wave table use struct patch_info. Initialize the key field * to WAVE_PATCH. */ #define SEQ_PRIVATE 0xfe /* Low level HW dependent events (8 bytes) */ #define SEQ_EXTENDED 0xff /* Extended events (8 bytes) OBSOLETE */ /* * Record for FM patches */ typedef unsigned char sbi_instr_data[32]; struct sbi_instrument { unsigned short key; /* FM_PATCH or OPL3_PATCH */ #define FM_PATCH _PATCHKEY(0x01) #define OPL3_PATCH _PATCHKEY(0x03) short device; /* Synth# (0-4) */ int channel; /* Program# to be initialized */ sbi_instr_data operators; /* Register settings for operator cells (.SBI format) */ }; struct synth_info { /* Read only */ char name[30]; int device; /* 0-N. INITIALIZE BEFORE CALLING */ int synth_type; #define SYNTH_TYPE_FM 0 #define SYNTH_TYPE_SAMPLE 1 #define SYNTH_TYPE_MIDI 2 /* Midi interface */ int synth_subtype; #define FM_TYPE_ADLIB 0x00 #define FM_TYPE_OPL3 0x01 #define MIDI_TYPE_MPU401 0x401 #define SAMPLE_TYPE_BASIC 0x10 #define SAMPLE_TYPE_GUS SAMPLE_TYPE_BASIC #define SAMPLE_TYPE_WAVEFRONT 0x11 int perc_mode; /* No longer supported */ int nr_voices; int nr_drums; /* Obsolete field */ int instr_bank_size; unsigned int capabilities; #define SYNTH_CAP_PERCMODE 0x00000001 /* No longer used */ #define SYNTH_CAP_OPL3 0x00000002 /* Set if OPL3 supported */ #define SYNTH_CAP_INPUT 0x00000004 /* Input (MIDI) device */ int dummies[19]; /* Reserve space */ }; struct sound_timer_info { char name[32]; int caps; }; #define MIDI_CAP_MPU401 1 /* MPU-401 intelligent mode */ struct midi_info { char name[30]; int device; /* 0-N. INITIALIZE BEFORE CALLING */ unsigned int capabilities; /* To be defined later */ int dev_type; int dummies[18]; /* Reserve space */ }; /******************************************** * ioctl commands for the /dev/midi## */ typedef struct { unsigned char cmd; char nr_args, nr_returns; unsigned char data[30]; } mpu_command_rec; #define SNDCTL_MIDI_PRETIME _SIOWR('m', 0, int) #define SNDCTL_MIDI_MPUMODE _SIOWR('m', 1, int) #define SNDCTL_MIDI_MPUCMD _SIOWR('m', 2, mpu_command_rec) /******************************************** * IOCTL commands for /dev/dsp and /dev/audio */ #define SNDCTL_DSP_RESET _SIO ('P', 0) #define SNDCTL_DSP_SYNC _SIO ('P', 1) #define SNDCTL_DSP_SPEED _SIOWR('P', 2, int) #define SNDCTL_DSP_STEREO _SIOWR('P', 3, int) #define SNDCTL_DSP_GETBLKSIZE _SIOWR('P', 4, int) #define SNDCTL_DSP_SAMPLESIZE SNDCTL_DSP_SETFMT #define SNDCTL_DSP_CHANNELS _SIOWR('P', 6, int) #define SOUND_PCM_WRITE_CHANNELS SNDCTL_DSP_CHANNELS #define SOUND_PCM_WRITE_FILTER _SIOWR('P', 7, int) #define SNDCTL_DSP_POST _SIO ('P', 8) #define SNDCTL_DSP_SUBDIVIDE _SIOWR('P', 9, int) #define SNDCTL_DSP_SETFRAGMENT _SIOWR('P',10, int) /* Audio data formats (Note! U8=8 and S16_LE=16 for compatibility) */ #define SNDCTL_DSP_GETFMTS _SIOR ('P',11, int) /* Returns a mask */ #define SNDCTL_DSP_SETFMT _SIOWR('P',5, int) /* Selects ONE fmt*/ # define AFMT_QUERY 0x00000000 /* Return current fmt */ # define AFMT_MU_LAW 0x00000001 # define AFMT_A_LAW 0x00000002 # define AFMT_IMA_ADPCM 0x00000004 # define AFMT_U8 0x00000008 # define AFMT_S16_LE 0x00000010 /* Little endian signed 16*/ # define AFMT_S16_BE 0x00000020 /* Big endian signed 16 */ # define AFMT_S8 0x00000040 # define AFMT_U16_LE 0x00000080 /* Little endian U16 */ # define AFMT_U16_BE 0x00000100 /* Big endian U16 */ # define AFMT_MPEG 0x00000200 /* MPEG (2) audio */ # define AFMT_AC3 0x00000400 /* Dolby Digital AC3 */ /* * Buffer status queries. */ typedef struct audio_buf_info { int fragments; /* # of available fragments (partially usend ones not counted) */ int fragstotal; /* Total # of fragments allocated */ int fragsize; /* Size of a fragment in bytes */ int bytes; /* Available space in bytes (includes partially used fragments) */ /* Note! 'bytes' could be more than fragments*fragsize */ } audio_buf_info; #define SNDCTL_DSP_GETOSPACE _SIOR ('P',12, audio_buf_info) #define SNDCTL_DSP_GETISPACE _SIOR ('P',13, audio_buf_info) #define SNDCTL_DSP_NONBLOCK _SIO ('P',14) #define SNDCTL_DSP_GETCAPS _SIOR ('P',15, int) # define DSP_CAP_REVISION 0x000000ff /* Bits for revision level (0 to 255) */ # define DSP_CAP_DUPLEX 0x00000100 /* Full duplex record/playback */ # define DSP_CAP_REALTIME 0x00000200 /* Real time capability */ # define DSP_CAP_BATCH 0x00000400 /* Device has some kind of */ /* internal buffers which may */ /* cause some delays and */ /* decrease precision of timing */ # define DSP_CAP_COPROC 0x00000800 /* Has a coprocessor */ /* Sometimes it's a DSP */ /* but usually not */ # define DSP_CAP_TRIGGER 0x00001000 /* Supports SETTRIGGER */ # define DSP_CAP_MMAP 0x00002000 /* Supports mmap() */ # define DSP_CAP_MULTI 0x00004000 /* support multiple open */ # define DSP_CAP_BIND 0x00008000 /* channel binding to front/rear/cneter/lfe */ #define SNDCTL_DSP_GETTRIGGER _SIOR ('P',16, int) #define SNDCTL_DSP_SETTRIGGER _SIOW ('P',16, int) # define PCM_ENABLE_INPUT 0x00000001 # define PCM_ENABLE_OUTPUT 0x00000002 typedef struct count_info { int bytes; /* Total # of bytes processed */ int blocks; /* # of fragment transitions since last time */ int ptr; /* Current DMA pointer value */ } count_info; #define SNDCTL_DSP_GETIPTR _SIOR ('P',17, count_info) #define SNDCTL_DSP_GETOPTR _SIOR ('P',18, count_info) typedef struct buffmem_desc { unsigned *buffer; int size; } buffmem_desc; #define SNDCTL_DSP_MAPINBUF _SIOR ('P', 19, buffmem_desc) #define SNDCTL_DSP_MAPOUTBUF _SIOR ('P', 20, buffmem_desc) #define SNDCTL_DSP_SETSYNCRO _SIO ('P', 21) #define SNDCTL_DSP_SETDUPLEX _SIO ('P', 22) #define SNDCTL_DSP_GETODELAY _SIOR ('P', 23, int) #define SNDCTL_DSP_GETCHANNELMASK _SIOWR('P', 64, int) #define SNDCTL_DSP_BIND_CHANNEL _SIOWR('P', 65, int) # define DSP_BIND_QUERY 0x00000000 # define DSP_BIND_FRONT 0x00000001 # define DSP_BIND_SURR 0x00000002 # define DSP_BIND_CENTER_LFE 0x00000004 # define DSP_BIND_HANDSET 0x00000008 # define DSP_BIND_MIC 0x00000010 # define DSP_BIND_MODEM1 0x00000020 # define DSP_BIND_MODEM2 0x00000040 # define DSP_BIND_I2S 0x00000080 # define DSP_BIND_SPDIF 0x00000100 #define SNDCTL_DSP_SETSPDIF _SIOW ('P', 66, int) #define SNDCTL_DSP_GETSPDIF _SIOR ('P', 67, int) # define SPDIF_PRO 0x0001 # define SPDIF_N_AUD 0x0002 # define SPDIF_COPY 0x0004 # define SPDIF_PRE 0x0008 # define SPDIF_CC 0x07f0 # define SPDIF_L 0x0800 # define SPDIF_DRS 0x4000 # define SPDIF_V 0x8000 /* * Application's profile defines the way how playback underrun situations should be handled. * * APF_NORMAL (the default) and APF_NETWORK make the driver to cleanup the * playback buffer whenever an underrun occurs. This consumes some time * prevents looping the existing buffer. * APF_CPUINTENS is intended to be set by CPU intensive applications which * are likely to run out of time occasionally. In this mode the buffer cleanup is * disabled which saves CPU time but also let's the previous buffer content to * be played during the "pause" after the underrun. */ #define SNDCTL_DSP_PROFILE _SIOW ('P', 23, int) #define APF_NORMAL 0 /* Normal applications */ #define APF_NETWORK 1 /* Underruns probably caused by an "external" delay */ #define APF_CPUINTENS 2 /* Underruns probably caused by "overheating" the CPU */ #define SOUND_PCM_READ_RATE _SIOR ('P', 2, int) #define SOUND_PCM_READ_CHANNELS _SIOR ('P', 6, int) #define SOUND_PCM_READ_BITS _SIOR ('P', 5, int) #define SOUND_PCM_READ_FILTER _SIOR ('P', 7, int) /* Some alias names */ #define SOUND_PCM_WRITE_BITS SNDCTL_DSP_SETFMT #define SOUND_PCM_WRITE_RATE SNDCTL_DSP_SPEED #define SOUND_PCM_POST SNDCTL_DSP_POST #define SOUND_PCM_RESET SNDCTL_DSP_RESET #define SOUND_PCM_SYNC SNDCTL_DSP_SYNC #define SOUND_PCM_SUBDIVIDE SNDCTL_DSP_SUBDIVIDE #define SOUND_PCM_SETFRAGMENT SNDCTL_DSP_SETFRAGMENT #define SOUND_PCM_GETFMTS SNDCTL_DSP_GETFMTS #define SOUND_PCM_SETFMT SNDCTL_DSP_SETFMT #define SOUND_PCM_GETOSPACE SNDCTL_DSP_GETOSPACE #define SOUND_PCM_GETISPACE SNDCTL_DSP_GETISPACE #define SOUND_PCM_NONBLOCK SNDCTL_DSP_NONBLOCK #define SOUND_PCM_GETCAPS SNDCTL_DSP_GETCAPS #define SOUND_PCM_GETTRIGGER SNDCTL_DSP_GETTRIGGER #define SOUND_PCM_SETTRIGGER SNDCTL_DSP_SETTRIGGER #define SOUND_PCM_SETSYNCRO SNDCTL_DSP_SETSYNCRO #define SOUND_PCM_GETIPTR SNDCTL_DSP_GETIPTR #define SOUND_PCM_GETOPTR SNDCTL_DSP_GETOPTR #define SOUND_PCM_MAPINBUF SNDCTL_DSP_MAPINBUF #define SOUND_PCM_MAPOUTBUF SNDCTL_DSP_MAPOUTBUF /* * ioctl calls to be used in communication with coprocessors and * DSP chips. */ typedef struct copr_buffer { int command; /* Set to 0 if not used */ int flags; #define CPF_NONE 0x0000 #define CPF_FIRST 0x0001 /* First block */ #define CPF_LAST 0x0002 /* Last block */ int len; int offs; /* If required by the device (0 if not used) */ unsigned char data[4000]; /* NOTE! 4000 is not 4k */ } copr_buffer; typedef struct copr_debug_buf { int command; /* Used internally. Set to 0 */ int parm1; int parm2; int flags; int len; /* Length of data in bytes */ } copr_debug_buf; typedef struct copr_msg { int len; unsigned char data[4000]; } copr_msg; #define SNDCTL_COPR_RESET _SIO ('C', 0) #define SNDCTL_COPR_LOAD _SIOWR('C', 1, copr_buffer) #define SNDCTL_COPR_RDATA _SIOWR('C', 2, copr_debug_buf) #define SNDCTL_COPR_RCODE _SIOWR('C', 3, copr_debug_buf) #define SNDCTL_COPR_WDATA _SIOW ('C', 4, copr_debug_buf) #define SNDCTL_COPR_WCODE _SIOW ('C', 5, copr_debug_buf) #define SNDCTL_COPR_RUN _SIOWR('C', 6, copr_debug_buf) #define SNDCTL_COPR_HALT _SIOWR('C', 7, copr_debug_buf) #define SNDCTL_COPR_SENDMSG _SIOWR('C', 8, copr_msg) #define SNDCTL_COPR_RCVMSG _SIOR ('C', 9, copr_msg) /********************************************* * IOCTL commands for /dev/mixer */ /* * Mixer devices * * There can be up to 20 different analog mixer channels. The * SOUND_MIXER_NRDEVICES gives the currently supported maximum. * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells * the devices supported by the particular mixer. */ #define SOUND_MIXER_NRDEVICES 25 #define SOUND_MIXER_VOLUME 0 #define SOUND_MIXER_BASS 1 #define SOUND_MIXER_TREBLE 2 #define SOUND_MIXER_SYNTH 3 #define SOUND_MIXER_PCM 4 #define SOUND_MIXER_SPEAKER 5 #define SOUND_MIXER_LINE 6 #define SOUND_MIXER_MIC 7 #define SOUND_MIXER_CD 8 #define SOUND_MIXER_IMIX 9 /* Recording monitor */ #define SOUND_MIXER_ALTPCM 10 #define SOUND_MIXER_RECLEV 11 /* Recording level */ #define SOUND_MIXER_IGAIN 12 /* Input gain */ #define SOUND_MIXER_OGAIN 13 /* Output gain */ /* * The AD1848 codec and compatibles have three line level inputs * (line, aux1 and aux2). Since each card manufacturer have assigned * different meanings to these inputs, it's inpractical to assign * specific meanings (line, cd, synth etc.) to them. */ #define SOUND_MIXER_LINE1 14 /* Input source 1 (aux1) */ #define SOUND_MIXER_LINE2 15 /* Input source 2 (aux2) */ #define SOUND_MIXER_LINE3 16 /* Input source 3 (line) */ #define SOUND_MIXER_DIGITAL1 17 /* Digital (input) 1 */ #define SOUND_MIXER_DIGITAL2 18 /* Digital (input) 2 */ #define SOUND_MIXER_DIGITAL3 19 /* Digital (input) 3 */ #define SOUND_MIXER_PHONEIN 20 /* Phone input */ #define SOUND_MIXER_PHONEOUT 21 /* Phone output */ #define SOUND_MIXER_VIDEO 22 /* Video/TV (audio) in */ #define SOUND_MIXER_RADIO 23 /* Radio in */ #define SOUND_MIXER_MONITOR 24 /* Monitor (usually mic) volume */ /* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX) */ /* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space */ #define SOUND_ONOFF_MIN 28 #define SOUND_ONOFF_MAX 30 /* Note! Number 31 cannot be used since the sign bit is reserved */ #define SOUND_MIXER_NONE 31 /* * The following unsupported macros are no longer functional. * Use SOUND_MIXER_PRIVATE# macros in future. */ #define SOUND_MIXER_ENHANCE SOUND_MIXER_NONE #define SOUND_MIXER_MUTE SOUND_MIXER_NONE #define SOUND_MIXER_LOUD SOUND_MIXER_NONE #define SOUND_DEVICE_LABELS {"Vol ", "Bass ", "Trebl", "Synth", "Pcm ", "Spkr ", "Line ", \ "Mic ", "CD ", "Mix ", "Pcm2 ", "Rec ", "IGain", "OGain", \ "Line1", "Line2", "Line3", "Digital1", "Digital2", "Digital3", \ "PhoneIn", "PhoneOut", "Video", "Radio", "Monitor"} #define SOUND_DEVICE_NAMES {"vol", "bass", "treble", "synth", "pcm", "speaker", "line", \ "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \ "line1", "line2", "line3", "dig1", "dig2", "dig3", \ "phin", "phout", "video", "radio", "monitor"} /* Device bitmask identifiers */ #define SOUND_MIXER_RECSRC 0xff /* Arg contains a bit for each recording source */ #define SOUND_MIXER_DEVMASK 0xfe /* Arg contains a bit for each supported device */ #define SOUND_MIXER_RECMASK 0xfd /* Arg contains a bit for each supported recording source */ #define SOUND_MIXER_CAPS 0xfc # define SOUND_CAP_EXCL_INPUT 0x00000001 /* Only one recording source at a time */ #define SOUND_MIXER_STEREODEVS 0xfb /* Mixer channels supporting stereo */ #define SOUND_MIXER_OUTSRC 0xfa /* Arg contains a bit for each input source to output */ #define SOUND_MIXER_OUTMASK 0xf9 /* Arg contains a bit for each supported input source to output */ /* Device mask bits */ #define SOUND_MASK_VOLUME (1 << SOUND_MIXER_VOLUME) #define SOUND_MASK_BASS (1 << SOUND_MIXER_BASS) #define SOUND_MASK_TREBLE (1 << SOUND_MIXER_TREBLE) #define SOUND_MASK_SYNTH (1 << SOUND_MIXER_SYNTH) #define SOUND_MASK_PCM (1 << SOUND_MIXER_PCM) #define SOUND_MASK_SPEAKER (1 << SOUND_MIXER_SPEAKER) #define SOUND_MASK_LINE (1 << SOUND_MIXER_LINE) #define SOUND_MASK_MIC (1 << SOUND_MIXER_MIC) #define SOUND_MASK_CD (1 << SOUND_MIXER_CD) #define SOUND_MASK_IMIX (1 << SOUND_MIXER_IMIX) #define SOUND_MASK_ALTPCM (1 << SOUND_MIXER_ALTPCM) #define SOUND_MASK_RECLEV (1 << SOUND_MIXER_RECLEV) #define SOUND_MASK_IGAIN (1 << SOUND_MIXER_IGAIN) #define SOUND_MASK_OGAIN (1 << SOUND_MIXER_OGAIN) #define SOUND_MASK_LINE1 (1 << SOUND_MIXER_LINE1) #define SOUND_MASK_LINE2 (1 << SOUND_MIXER_LINE2) #define SOUND_MASK_LINE3 (1 << SOUND_MIXER_LINE3) #define SOUND_MASK_DIGITAL1 (1 << SOUND_MIXER_DIGITAL1) #define SOUND_MASK_DIGITAL2 (1 << SOUND_MIXER_DIGITAL2) #define SOUND_MASK_DIGITAL3 (1 << SOUND_MIXER_DIGITAL3) #define SOUND_MASK_PHONEIN (1 << SOUND_MIXER_PHONEIN) #define SOUND_MASK_PHONEOUT (1 << SOUND_MIXER_PHONEOUT) #define SOUND_MASK_RADIO (1 << SOUND_MIXER_RADIO) #define SOUND_MASK_VIDEO (1 << SOUND_MIXER_VIDEO) #define SOUND_MASK_MONITOR (1 << SOUND_MIXER_MONITOR) /* Obsolete macros */ #define SOUND_MASK_MUTE (1 << SOUND_MIXER_MUTE) #define SOUND_MASK_ENHANCE (1 << SOUND_MIXER_ENHANCE) #define SOUND_MASK_LOUD (1 << SOUND_MIXER_LOUD) #define MIXER_READ(dev) _SIOR('M', dev, int) #define SOUND_MIXER_READ_VOLUME MIXER_READ(SOUND_MIXER_VOLUME) #define SOUND_MIXER_READ_BASS MIXER_READ(SOUND_MIXER_BASS) #define SOUND_MIXER_READ_TREBLE MIXER_READ(SOUND_MIXER_TREBLE) #define SOUND_MIXER_READ_SYNTH MIXER_READ(SOUND_MIXER_SYNTH) #define SOUND_MIXER_READ_PCM MIXER_READ(SOUND_MIXER_PCM) #define SOUND_MIXER_READ_SPEAKER MIXER_READ(SOUND_MIXER_SPEAKER) #define SOUND_MIXER_READ_LINE MIXER_READ(SOUND_MIXER_LINE) #define SOUND_MIXER_READ_MIC MIXER_READ(SOUND_MIXER_MIC) #define SOUND_MIXER_READ_CD MIXER_READ(SOUND_MIXER_CD) #define SOUND_MIXER_READ_IMIX MIXER_READ(SOUND_MIXER_IMIX) #define SOUND_MIXER_READ_ALTPCM MIXER_READ(SOUND_MIXER_ALTPCM) #define SOUND_MIXER_READ_RECLEV MIXER_READ(SOUND_MIXER_RECLEV) #define SOUND_MIXER_READ_IGAIN MIXER_READ(SOUND_MIXER_IGAIN) #define SOUND_MIXER_READ_OGAIN MIXER_READ(SOUND_MIXER_OGAIN) #define SOUND_MIXER_READ_LINE1 MIXER_READ(SOUND_MIXER_LINE1) #define SOUND_MIXER_READ_LINE2 MIXER_READ(SOUND_MIXER_LINE2) #define SOUND_MIXER_READ_LINE3 MIXER_READ(SOUND_MIXER_LINE3) /* Obsolete macros */ #define SOUND_MIXER_READ_MUTE MIXER_READ(SOUND_MIXER_MUTE) #define SOUND_MIXER_READ_ENHANCE MIXER_READ(SOUND_MIXER_ENHANCE) #define SOUND_MIXER_READ_LOUD MIXER_READ(SOUND_MIXER_LOUD) #define SOUND_MIXER_READ_RECSRC MIXER_READ(SOUND_MIXER_RECSRC) #define SOUND_MIXER_READ_DEVMASK MIXER_READ(SOUND_MIXER_DEVMASK) #define SOUND_MIXER_READ_RECMASK MIXER_READ(SOUND_MIXER_RECMASK) #define SOUND_MIXER_READ_STEREODEVS MIXER_READ(SOUND_MIXER_STEREODEVS) #define SOUND_MIXER_READ_CAPS MIXER_READ(SOUND_MIXER_CAPS) #define MIXER_WRITE(dev) _SIOWR('M', dev, int) #define SOUND_MIXER_WRITE_VOLUME MIXER_WRITE(SOUND_MIXER_VOLUME) #define SOUND_MIXER_WRITE_BASS MIXER_WRITE(SOUND_MIXER_BASS) #define SOUND_MIXER_WRITE_TREBLE MIXER_WRITE(SOUND_MIXER_TREBLE) #define SOUND_MIXER_WRITE_SYNTH MIXER_WRITE(SOUND_MIXER_SYNTH) #define SOUND_MIXER_WRITE_PCM MIXER_WRITE(SOUND_MIXER_PCM) #define SOUND_MIXER_WRITE_SPEAKER MIXER_WRITE(SOUND_MIXER_SPEAKER) #define SOUND_MIXER_WRITE_LINE MIXER_WRITE(SOUND_MIXER_LINE) #define SOUND_MIXER_WRITE_MIC MIXER_WRITE(SOUND_MIXER_MIC) #define SOUND_MIXER_WRITE_CD MIXER_WRITE(SOUND_MIXER_CD) #define SOUND_MIXER_WRITE_IMIX MIXER_WRITE(SOUND_MIXER_IMIX) #define SOUND_MIXER_WRITE_ALTPCM MIXER_WRITE(SOUND_MIXER_ALTPCM) #define SOUND_MIXER_WRITE_RECLEV MIXER_WRITE(SOUND_MIXER_RECLEV) #define SOUND_MIXER_WRITE_IGAIN MIXER_WRITE(SOUND_MIXER_IGAIN) #define SOUND_MIXER_WRITE_OGAIN MIXER_WRITE(SOUND_MIXER_OGAIN) #define SOUND_MIXER_WRITE_LINE1 MIXER_WRITE(SOUND_MIXER_LINE1) #define SOUND_MIXER_WRITE_LINE2 MIXER_WRITE(SOUND_MIXER_LINE2) #define SOUND_MIXER_WRITE_LINE3 MIXER_WRITE(SOUND_MIXER_LINE3) /* Obsolete macros */ #define SOUND_MIXER_WRITE_MUTE MIXER_WRITE(SOUND_MIXER_MUTE) #define SOUND_MIXER_WRITE_ENHANCE MIXER_WRITE(SOUND_MIXER_ENHANCE) #define SOUND_MIXER_WRITE_LOUD MIXER_WRITE(SOUND_MIXER_LOUD) #define SOUND_MIXER_WRITE_RECSRC MIXER_WRITE(SOUND_MIXER_RECSRC) typedef struct mixer_info { char id[16]; char name[32]; int modify_counter; int fillers[10]; } mixer_info; typedef struct _old_mixer_info /* Obsolete */ { char id[16]; char name[32]; } _old_mixer_info; #define SOUND_MIXER_INFO _SIOR ('M', 101, mixer_info) #define SOUND_OLD_MIXER_INFO _SIOR ('M', 101, _old_mixer_info) /* * A mechanism for accessing "proprietary" mixer features. This method * permits passing 128 bytes of arbitrary data between a mixer application * and the mixer driver. Interpretation of the record is defined by * the particular mixer driver. */ typedef unsigned char mixer_record[128]; #define SOUND_MIXER_ACCESS _SIOWR('M', 102, mixer_record) /* * Two ioctls for special souncard function */ #define SOUND_MIXER_AGC _SIOWR('M', 103, int) #define SOUND_MIXER_3DSE _SIOWR('M', 104, int) /* * The SOUND_MIXER_PRIVATE# commands can be redefined by low level drivers. * These features can be used when accessing device specific features. */ #define SOUND_MIXER_PRIVATE1 _SIOWR('M', 111, int) #define SOUND_MIXER_PRIVATE2 _SIOWR('M', 112, int) #define SOUND_MIXER_PRIVATE3 _SIOWR('M', 113, int) #define SOUND_MIXER_PRIVATE4 _SIOWR('M', 114, int) #define SOUND_MIXER_PRIVATE5 _SIOWR('M', 115, int) /* * SOUND_MIXER_GETLEVELS and SOUND_MIXER_SETLEVELS calls can be used * for querying current mixer settings from the driver and for loading * default volume settings _prior_ activating the mixer (loading * doesn't affect current state of the mixer hardware). These calls * are for internal use only. */ typedef struct mixer_vol_table { int num; /* Index to volume table */ char name[32]; int levels[32]; } mixer_vol_table; #define SOUND_MIXER_GETLEVELS _SIOWR('M', 116, mixer_vol_table) #define SOUND_MIXER_SETLEVELS _SIOWR('M', 117, mixer_vol_table) /* * An ioctl for identifying the driver version. It will return value * of the SOUND_VERSION macro used when compiling the driver. * This call was introduced in OSS version 3.6 and it will not work * with earlier versions (returns EINVAL). */ #define OSS_GETVERSION _SIOR ('M', 118, int) /* * Level 2 event types for /dev/sequencer */ /* * The 4 most significant bits of byte 0 specify the class of * the event: * * 0x8X = system level events, * 0x9X = device/port specific events, event[1] = device/port, * The last 4 bits give the subtype: * 0x02 = Channel event (event[3] = chn). * 0x01 = note event (event[4] = note). * (0x01 is not used alone but always with bit 0x02). * event[2] = MIDI message code (0x80=note off etc.) * */ #define EV_SEQ_LOCAL 0x80 #define EV_TIMING 0x81 #define EV_CHN_COMMON 0x92 #define EV_CHN_VOICE 0x93 #define EV_SYSEX 0x94 /* * Event types 200 to 220 are reserved for application use. * These numbers will not be used by the driver. */ /* * Events for event type EV_CHN_VOICE */ #define MIDI_NOTEOFF 0x80 #define MIDI_NOTEON 0x90 #define MIDI_KEY_PRESSURE 0xA0 /* * Events for event type EV_CHN_COMMON */ #define MIDI_CTL_CHANGE 0xB0 #define MIDI_PGM_CHANGE 0xC0 #define MIDI_CHN_PRESSURE 0xD0 #define MIDI_PITCH_BEND 0xE0 #define MIDI_SYSTEM_PREFIX 0xF0 /* * Timer event types */ #define TMR_WAIT_REL 1 /* Time relative to the prev time */ #define TMR_WAIT_ABS 2 /* Absolute time since TMR_START */ #define TMR_STOP 3 #define TMR_START 4 #define TMR_CONTINUE 5 #define TMR_TEMPO 6 #define TMR_ECHO 8 #define TMR_CLOCK 9 /* MIDI clock */ #define TMR_SPP 10 /* Song position pointer */ #define TMR_TIMESIG 11 /* Time signature */ /* * Local event types */ #define LOCL_STARTAUDIO 1 #if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS) /* * Some convenience macros to simplify programming of the * /dev/sequencer interface * * These macros define the API which should be used when possible. */ #define SEQ_DECLAREBUF() SEQ_USE_EXTBUF() void seqbuf_dump(void); /* This function must be provided by programs */ extern int OSS_init(int seqfd, int buflen); extern void OSS_seqbuf_dump(int fd, unsigned char *buf, int buflen); extern void OSS_seq_advbuf(int len, int fd, unsigned char *buf, int buflen); extern void OSS_seq_needbuf(int len, int fd, unsigned char *buf, int buflen); extern void OSS_patch_caching(int dev, int chn, int patch, int fd, unsigned char *buf, int buflen); extern void OSS_drum_caching(int dev, int chn, int patch, int fd, unsigned char *buf, int buflen); extern void OSS_write_patch(int fd, unsigned char *buf, int len); extern int OSS_write_patch2(int fd, unsigned char *buf, int len); #define SEQ_PM_DEFINES int __foo_bar___ #ifdef OSSLIB # define SEQ_USE_EXTBUF() \ extern unsigned char *_seqbuf; \ extern int _seqbuflen;extern int _seqbufptr # define SEQ_DEFINEBUF(len) SEQ_USE_EXTBUF();static int _requested_seqbuflen=len # define _SEQ_ADVBUF(len) OSS_seq_advbuf(len, seqfd, _seqbuf, _seqbuflen) # define _SEQ_NEEDBUF(len) OSS_seq_needbuf(len, seqfd, _seqbuf, _seqbuflen) # define SEQ_DUMPBUF() OSS_seqbuf_dump(seqfd, _seqbuf, _seqbuflen) # define SEQ_LOAD_GMINSTR(dev, instr) \ OSS_patch_caching(dev, -1, instr, seqfd, _seqbuf, _seqbuflen) # define SEQ_LOAD_GMDRUM(dev, drum) \ OSS_drum_caching(dev, -1, drum, seqfd, _seqbuf, _seqbuflen) #else /* !OSSLIB */ # define SEQ_LOAD_GMINSTR(dev, instr) # define SEQ_LOAD_GMDRUM(dev, drum) # define SEQ_USE_EXTBUF() \ extern unsigned char _seqbuf[]; \ extern int _seqbuflen;extern int _seqbufptr #ifndef USE_SIMPLE_MACROS /* Sample seqbuf_dump() implementation: * * SEQ_DEFINEBUF (2048); -- Defines a buffer for 2048 bytes * * int seqfd; -- The file descriptor for /dev/sequencer. * * void * seqbuf_dump () * { * if (_seqbufptr) * if (write (seqfd, _seqbuf, _seqbufptr) == -1) * { * perror ("write /dev/sequencer"); * exit (-1); * } * _seqbufptr = 0; * } */ #define SEQ_DEFINEBUF(len) unsigned char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0 #define _SEQ_NEEDBUF(len) if ((_seqbufptr+(len)) > _seqbuflen) seqbuf_dump() #define _SEQ_ADVBUF(len) _seqbufptr += len #define SEQ_DUMPBUF seqbuf_dump #else /* * This variation of the sequencer macros is used just to format one event * using fixed buffer. * * The program using the macro library must define the following macros before * using this library. * * #define _seqbuf name of the buffer (unsigned char[]) * #define _SEQ_ADVBUF(len) If the applic needs to know the exact * size of the event, this macro can be used. * Otherwise this must be defined as empty. * #define _seqbufptr Define the name of index variable or 0 if * not required. */ #define _SEQ_NEEDBUF(len) /* empty */ #endif #endif /* !OSSLIB */ #define SEQ_VOLUME_MODE(dev, mode) {_SEQ_NEEDBUF(8);\ _seqbuf[_seqbufptr] = SEQ_EXTENDED;\ _seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\ _seqbuf[_seqbufptr+2] = (dev);\ _seqbuf[_seqbufptr+3] = (mode);\ _seqbuf[_seqbufptr+4] = 0;\ _seqbuf[_seqbufptr+5] = 0;\ _seqbuf[_seqbufptr+6] = 0;\ _seqbuf[_seqbufptr+7] = 0;\ _SEQ_ADVBUF(8);} /* * Midi voice messages */ #define _CHN_VOICE(dev, event, chn, note, parm) \ {_SEQ_NEEDBUF(8);\ _seqbuf[_seqbufptr] = EV_CHN_VOICE;\ _seqbuf[_seqbufptr+1] = (dev);\ _seqbuf[_seqbufptr+2] = (event);\ _seqbuf[_seqbufptr+3] = (chn);\ _seqbuf[_seqbufptr+4] = (note);\ _seqbuf[_seqbufptr+5] = (parm);\ _seqbuf[_seqbufptr+6] = (0);\ _seqbuf[_seqbufptr+7] = 0;\ _SEQ_ADVBUF(8);} #define SEQ_START_NOTE(dev, chn, note, vol) \ _CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol) #define SEQ_STOP_NOTE(dev, chn, note, vol) \ _CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol) #define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \ _CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure) /* * Midi channel messages */ #define _CHN_COMMON(dev, event, chn, p1, p2, w14) \ {_SEQ_NEEDBUF(8);\ _seqbuf[_seqbufptr] = EV_CHN_COMMON;\ _seqbuf[_seqbufptr+1] = (dev);\ _seqbuf[_seqbufptr+2] = (event);\ _seqbuf[_seqbufptr+3] = (chn);\ _seqbuf[_seqbufptr+4] = (p1);\ _seqbuf[_seqbufptr+5] = (p2);\ *(short *)&_seqbuf[_seqbufptr+6] = (w14);\ _SEQ_ADVBUF(8);} /* * SEQ_SYSEX permits sending of sysex messages. (It may look that it permits * sending any MIDI bytes but it's absolutely not possible. Trying to do * so _will_ cause problems with MPU401 intelligent mode). * * Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be * sent by calling SEQ_SYSEX() several times (there must be no other events * between them). First sysex fragment must have 0xf0 in the first byte * and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte * between these sysex start and end markers cannot be larger than 0x7f. Also * lengths of each fragments (except the last one) must be 6. * * Breaking the above rules may work with some MIDI ports but is likely to * cause fatal problems with some other devices (such as MPU401). */ #define SEQ_SYSEX(dev, buf, len) \ {int ii, ll=(len); \ unsigned char *bufp=buf;\ if (ll>6)ll=6;\ _SEQ_NEEDBUF(8);\ _seqbuf[_seqbufptr] = EV_SYSEX;\ _seqbuf[_seqbufptr+1] = (dev);\ for(ii=0;ii<ll;ii++)\ _seqbuf[_seqbufptr+ii+2] = bufp[ii];\ for(ii=ll;ii<6;ii++)\ _seqbuf[_seqbufptr+ii+2] = 0xff;\ _SEQ_ADVBUF(8);} #define SEQ_CHN_PRESSURE(dev, chn, pressure) \ _CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0) #define SEQ_SET_PATCH SEQ_PGM_CHANGE #ifdef OSSLIB # define SEQ_PGM_CHANGE(dev, chn, patch) \ {OSS_patch_caching(dev, chn, patch, seqfd, _seqbuf, _seqbuflen); \ _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0);} #else # define SEQ_PGM_CHANGE(dev, chn, patch) \ _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0) #endif #define SEQ_CONTROL(dev, chn, controller, value) \ _CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value) #define SEQ_BENDER(dev, chn, value) \ _CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value) #define SEQ_V2_X_CONTROL(dev, voice, controller, value) {_SEQ_NEEDBUF(8);\ _seqbuf[_seqbufptr] = SEQ_EXTENDED;\ _seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\ _seqbuf[_seqbufptr+2] = (dev);\ _seqbuf[_seqbufptr+3] = (voice);\ _seqbuf[_seqbufptr+4] = (controller);\ _seqbuf[_seqbufptr+5] = ((value)&0xff);\ _seqbuf[_seqbufptr+6] = ((value>>8)&0xff);\ _seqbuf[_seqbufptr+7] = 0;\ _SEQ_ADVBUF(8);} /* * The following 5 macros are incorrectly implemented and obsolete. * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead. */ #define SEQ_PITCHBEND(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value) #define SEQ_BENDER_RANGE(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value) #define SEQ_EXPRESSION(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128) #define SEQ_MAIN_VOLUME(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100) #define SEQ_PANNING(dev, voice, pos) SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2) /* * Timing and syncronization macros */ #define _TIMER_EVENT(ev, parm) {_SEQ_NEEDBUF(8);\ _seqbuf[_seqbufptr+0] = EV_TIMING; \ _seqbuf[_seqbufptr+1] = (ev); \ _seqbuf[_seqbufptr+2] = 0;\ _seqbuf[_seqbufptr+3] = 0;\ *(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \ _SEQ_ADVBUF(8);} #define SEQ_START_TIMER() _TIMER_EVENT(TMR_START, 0) #define SEQ_STOP_TIMER() _TIMER_EVENT(TMR_STOP, 0) #define SEQ_CONTINUE_TIMER() _TIMER_EVENT(TMR_CONTINUE, 0) #define SEQ_WAIT_TIME(ticks) _TIMER_EVENT(TMR_WAIT_ABS, ticks) #define SEQ_DELTA_TIME(ticks) _TIMER_EVENT(TMR_WAIT_REL, ticks) #define SEQ_ECHO_BACK(key) _TIMER_EVENT(TMR_ECHO, key) #define SEQ_SET_TEMPO(value) _TIMER_EVENT(TMR_TEMPO, value) #define SEQ_SONGPOS(pos) _TIMER_EVENT(TMR_SPP, pos) #define SEQ_TIME_SIGNATURE(sig) _TIMER_EVENT(TMR_TIMESIG, sig) /* * Local control events */ #define _LOCAL_EVENT(ev, parm) {_SEQ_NEEDBUF(8);\ _seqbuf[_seqbufptr+0] = EV_SEQ_LOCAL; \ _seqbuf[_seqbufptr+1] = (ev); \ _seqbuf[_seqbufptr+2] = 0;\ _seqbuf[_seqbufptr+3] = 0;\ *(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \ _SEQ_ADVBUF(8);} #define SEQ_PLAYAUDIO(devmask) _LOCAL_EVENT(LOCL_STARTAUDIO, devmask) /* * Events for the level 1 interface only */ #define SEQ_MIDIOUT(device, byte) {_SEQ_NEEDBUF(4);\ _seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\ _seqbuf[_seqbufptr+1] = (byte);\ _seqbuf[_seqbufptr+2] = (device);\ _seqbuf[_seqbufptr+3] = 0;\ _SEQ_ADVBUF(4);} /* * Patch loading. */ #ifdef OSSLIB # define SEQ_WRPATCH(patchx, len) \ OSS_write_patch(seqfd, (char*)(patchx), len) # define SEQ_WRPATCH2(patchx, len) \ OSS_write_patch2(seqfd, (char*)(patchx), len) #else # define SEQ_WRPATCH(patchx, len) \ {if (_seqbufptr) SEQ_DUMPBUF();\ if (write(seqfd, (char*)(patchx), len)==-1) \ perror("Write patch: /dev/sequencer");} # define SEQ_WRPATCH2(patchx, len) \ (SEQ_DUMPBUF(), write(seqfd, (char*)(patchx), len)) #endif #endif #endif