+/*
+ * ioctl commands for the /dev/midi##
+ */
+typedef struct {
+ u_char cmd;
+ char nr_args, nr_returns;
+ u_char data[30];
+} mpu_command_rec;
+
+#define SNDCTL_MIDI_PRETIME _IOWR('m', 0, int)
+#define SNDCTL_MIDI_MPUMODE _IOWR('m', 1, int)
+#define SNDCTL_MIDI_MPUCMD _IOWR('m', 2, mpu_command_rec)
+#define MIOSPASSTHRU _IOWR('m', 3, int)
+#define MIOGPASSTHRU _IOWR('m', 4, int)
+
+/*
+ * IOCTL commands for /dev/dsp and /dev/audio
+ */
+
+#define SNDCTL_DSP_RESET _IO ('P', 0)
+#define SNDCTL_DSP_SYNC _IO ('P', 1)
+#define SNDCTL_DSP_SPEED _IOWR('P', 2, int)
+#define SNDCTL_DSP_STEREO _IOWR('P', 3, int)
+#define SNDCTL_DSP_GETBLKSIZE _IOR('P', 4, int)
+#define SNDCTL_DSP_SETBLKSIZE _IOW('P', 4, int)
+#define SNDCTL_DSP_SETFMT _IOWR('P',5, int) /* Selects ONE fmt*/
+
+/*
+ * SOUND_PCM_WRITE_CHANNELS is not that different
+ * from SNDCTL_DSP_STEREO
+ */
+#define SOUND_PCM_WRITE_CHANNELS _IOWR('P', 6, int)
+#define SNDCTL_DSP_CHANNELS SOUND_PCM_WRITE_CHANNELS
+#define SOUND_PCM_WRITE_FILTER _IOWR('P', 7, int)
+#define SNDCTL_DSP_POST _IO ('P', 8)
+
+/*
+ * SNDCTL_DSP_SETBLKSIZE and the following two calls mostly do
+ * the same thing, i.e. set the block size used in DMA transfers.
+ */
+#define SNDCTL_DSP_SUBDIVIDE _IOWR('P', 9, int)
+#define SNDCTL_DSP_SETFRAGMENT _IOWR('P',10, int)
+
+
+#define SNDCTL_DSP_GETFMTS _IOR ('P',11, int) /* Returns a mask */
+/*
+ * Buffer status queries.
+ */
+typedef struct audio_buf_info {
+ int fragments; /* # of avail. frags (partly used ones not counted) */
+ int fragstotal; /* Total # of fragments allocated */
+ int fragsize; /* Size of a fragment in bytes */
+
+ int bytes; /* Avail. space in bytes (includes partly used fragments) */
+ /* Note! 'bytes' could be more than fragments*fragsize */
+} audio_buf_info;
+
+#define SNDCTL_DSP_GETOSPACE _IOR ('P',12, audio_buf_info)
+#define SNDCTL_DSP_GETISPACE _IOR ('P',13, audio_buf_info)
+
+/*
+ * SNDCTL_DSP_NONBLOCK is the same (but less powerful, since the
+ * action cannot be undone) of FIONBIO. The same can be achieved
+ * by opening the device with O_NDELAY
+ */
+#define SNDCTL_DSP_NONBLOCK _IO ('P',14)
+
+#define SNDCTL_DSP_GETCAPS _IOR ('P',15, int)
+#define DSP_CAP_REVISION 0x000000ff /* 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() */
+
+/*
+ * What do these function do ?
+ */
+#define SNDCTL_DSP_GETTRIGGER _IOR ('P',16, int)
+#define SNDCTL_DSP_SETTRIGGER _IOW ('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;
+
+/*
+ * GETIPTR and GETISPACE are not that different... same for out.
+ */
+#define SNDCTL_DSP_GETIPTR _IOR ('P',17, count_info)
+#define SNDCTL_DSP_GETOPTR _IOR ('P',18, count_info)
+
+typedef struct buffmem_desc {
+ caddr_t buffer;
+ int size;
+} buffmem_desc;
+
+#define SNDCTL_DSP_MAPINBUF _IOR ('P', 19, buffmem_desc)
+#define SNDCTL_DSP_MAPOUTBUF _IOR ('P', 20, buffmem_desc)
+#define SNDCTL_DSP_SETSYNCRO _IO ('P', 21)
+#define SNDCTL_DSP_SETDUPLEX _IO ('P', 22)
+#define SNDCTL_DSP_GETODELAY _IOR ('P', 23, int)
+
+/*
+ * I guess these are the readonly version of the same
+ * functions that exist above as SNDCTL_DSP_...
+ */
+#define SOUND_PCM_READ_RATE _IOR ('P', 2, int)
+#define SOUND_PCM_READ_CHANNELS _IOR ('P', 6, int)
+#define SOUND_PCM_READ_BITS _IOR ('P', 5, int)
+#define SOUND_PCM_READ_FILTER _IOR ('P', 7, int)
+
+/*
+ * 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) */
+
+ u_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;
+ u_char data[4000];
+} copr_msg;
+
+#define SNDCTL_COPR_RESET _IO ('C', 0)
+#define SNDCTL_COPR_LOAD _IOWR('C', 1, copr_buffer)
+#define SNDCTL_COPR_RDATA _IOWR('C', 2, copr_debug_buf)
+#define SNDCTL_COPR_RCODE _IOWR('C', 3, copr_debug_buf)
+#define SNDCTL_COPR_WDATA _IOW ('C', 4, copr_debug_buf)
+#define SNDCTL_COPR_WCODE _IOW ('C', 5, copr_debug_buf)
+#define SNDCTL_COPR_RUN _IOWR('C', 6, copr_debug_buf)
+#define SNDCTL_COPR_HALT _IOWR('C', 7, copr_debug_buf)
+#define SNDCTL_COPR_SENDMSG _IOW ('C', 8, copr_msg)
+#define SNDCTL_COPR_RCVMSG _IOR ('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 /* Master output level */
+#define SOUND_MIXER_BASS 1 /* Treble level of all output channels */
+#define SOUND_MIXER_TREBLE 2 /* Bass level of all output channels */
+#define SOUND_MIXER_SYNTH 3 /* Volume of synthesier input */
+#define SOUND_MIXER_PCM 4 /* Output level for the audio device */
+#define SOUND_MIXER_SPEAKER 5 /* Output level for the PC speaker
+ * signals */
+#define SOUND_MIXER_LINE 6 /* Volume level for the line in jack */
+#define SOUND_MIXER_MIC 7 /* Volume for the signal coming from
+ * the microphone jack */
+#define SOUND_MIXER_CD 8 /* Volume level for the input signal
+ * connected to the CD audio input */
+#define SOUND_MIXER_IMIX 9 /* Recording monitor. It controls the
+ * output volume of the selected
+ * recording sources while recording */
+#define SOUND_MIXER_ALTPCM 10 /* Volume of the alternative codec
+ * device */
+#define SOUND_MIXER_RECLEV 11 /* Global 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
+#define SOUND_MIXER_MUTE 28 /* 0 or 1 */
+#define SOUND_MIXER_ENHANCE 29 /* Enhanced stereo (0, 40, 60 or 80) */
+#define SOUND_MIXER_LOUD 30 /* 0 or 1 */
+
+/* Note! Number 31 cannot be used since the sign bit is reserved */
+#define SOUND_MIXER_NONE 31
+
+#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 /* 1 bit per recording source */
+#define SOUND_MIXER_DEVMASK 0xfe /* 1 bit per supported device */
+#define SOUND_MIXER_RECMASK 0xfd /* 1 bit per supp. recording source */
+#define SOUND_MIXER_CAPS 0xfc
+#define SOUND_CAP_EXCL_INPUT 0x00000001 /* Only 1 rec. src at a time */
+#define SOUND_MIXER_STEREODEVS 0xfb /* Mixer channels supporting stereo */
+
+/* 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) _IOR('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)
+#define SOUND_MIXER_READ_DIGITAL1 MIXER_READ(SOUND_MIXER_DIGITAL1)
+#define SOUND_MIXER_READ_DIGITAL2 MIXER_READ(SOUND_MIXER_DIGITAL2)
+#define SOUND_MIXER_READ_DIGITAL3 MIXER_READ(SOUND_MIXER_DIGITAL3)
+#define SOUND_MIXER_READ_PHONEIN MIXER_READ(SOUND_MIXER_PHONEIN)
+#define SOUND_MIXER_READ_PHONEOUT MIXER_READ(SOUND_MIXER_PHONEOUT)
+#define SOUND_MIXER_READ_RADIO MIXER_READ(SOUND_MIXER_RADIO)
+#define SOUND_MIXER_READ_VIDEO MIXER_READ(SOUND_MIXER_VIDEO)
+#define SOUND_MIXER_READ_MONITOR MIXER_READ(SOUND_MIXER_MONITOR)
+
+/* 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) _IOWR('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)
+#define SOUND_MIXER_WRITE_DIGITAL1 MIXER_WRITE(SOUND_MIXER_DIGITAL1)
+#define SOUND_MIXER_WRITE_DIGITAL2 MIXER_WRITE(SOUND_MIXER_DIGITAL2)
+#define SOUND_MIXER_WRITE_DIGITAL3 MIXER_WRITE(SOUND_MIXER_DIGITAL3)
+#define SOUND_MIXER_WRITE_PHONEIN MIXER_WRITE(SOUND_MIXER_PHONEIN)
+#define SOUND_MIXER_WRITE_PHONEOUT MIXER_WRITE(SOUND_MIXER_PHONEOUT)
+#define SOUND_MIXER_WRITE_RADIO MIXER_WRITE(SOUND_MIXER_RADIO)
+#define SOUND_MIXER_WRITE_VIDEO MIXER_WRITE(SOUND_MIXER_VIDEO)
+#define SOUND_MIXER_WRITE_MONITOR MIXER_WRITE(SOUND_MIXER_MONITOR)
+
+#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;
+
+#define SOUND_MIXER_INFO _IOR('M', 101, mixer_info)
+
+#define LEFT_CHN 0
+#define RIGHT_CHN 1
+