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Text File | 1993-03-18 | 9KB | 269 lines

/* * snddriver_client.h * Copyright 1990 NeXT, Inc. * * This file gets #import'ed by sounddriver.h. */ kern_return_t snddriver_get_device_parms ( port_t device_port, // valid device port boolean_t *speaker, // returned speaker enable boolean_t *lowpass, // returned lowpass filter en. boolean_t *zerofill); kern_return_t snddriver_set_device_parms ( port_t device_port, // valid device port boolean_t speaker, // enable speaker boolean_t lowpass, // enable lowpass filter boolean_t zerofill); /* new in 2.0 */ kern_return_t snddriver_set_ramp ( port_t device_port, // valid device port int rampflags); // Flags for setting ramp kern_return_t snddriver_get_volume ( port_t device_port, // valid device port int *left_chan, // returned volume int *right_chan); kern_return_t snddriver_set_volume ( port_t device_port, // valid device port int left_chan, // volume on left channel int right_chan); kern_return_t snddriver_set_dsp_owner_port ( port_t device_port, // valid device port port_t owner_port, // dsp owner port port_t *neg_port); kern_return_t snddriver_set_sndin_owner_port ( port_t device_port, // valid device port port_t owner_port, // sound in owner port port_t *neg_port); kern_return_t snddriver_set_sndout_owner_port ( port_t device_port, // valid device port port_t owner_port, // sound out owner port port_t *neg_port); kern_return_t snddriver_get_dsp_cmd_port ( port_t device_port, // valid device port port_t owner_port, // valid owner port port_t *cmd_port); kern_return_t snddriver_dspcmd_req_msg ( port_t cmd_port, // valid dsp command port port_t reply_port); kern_return_t snddriver_dspcmd_req_err ( port_t cmd_port, // valid dsp command port port_t reply_port); kern_return_t snddriver_dspcmd_req_condition ( //? port_t cmd_port, // valid dsp command port u_int mask, // mask of flags in condition u_int flags, // value of flags in condition int priority, // priority of this transaction port_t reply_port); kern_return_t snddriver_dsp_set_flags ( port_t cmd_port, // valid dsp command port u_int mask, // mask of flags to affect u_int flags, // values of affected flags int priority); kern_return_t snddriver_dsp_host_cmd ( port_t cmd_port, // valid dsp command port u_int host_command, // host command to execute int priority); /* New for 2.0 */ kern_return_t snddriver_dsp_read_data ( port_t cmd_port, // valid command port void **data, // buffer pointer or NULL int count, // count of data elements int data_size, // bytes per data element int priority); // priority of this transaction /* New for 2.0 */ kern_return_t snddriver_dsp_read_messages ( port_t cmd_port, // valid command port void *data, // buffer pointer or NULL int *count, // count of data elements int data_size, // bytes per data element int priority); // priority of this transaction kern_return_t snddriver_dsp_read ( port_t cmd_port, // valid command port void *data, // pointer to buffer int *count, // count of data elements int data_size, // bytes per data element int priority); /* Calls read_messages if DSPMSG, DSPERR, or C_DMA protocol, else read_data */ kern_return_t snddriver_dsp_write ( port_t cmd_port, // valid command port void *data, // pointer to buffer int count, // count of data elements int data_size, // bytes per data element int priority); kern_return_t snddriver_dsp_boot ( port_t cmd_port, // valid command port int *bootImage, // on-chip instructions int bootImageSize, // instruction count int priority); /* * Set number of dma descriptors in stream. * New for 2.0. */ kern_return_t snddriver_stream_ndma ( port_t stream_port, // valid stream port int tag, // tag to identify stream int ndma); // number of dma descs in stream /* * Reset dsp (new in 2.0). */ kern_return_t snddriver_dsp_reset ( port_t cmd_port, // valid command port int priority); // priority of this transaction /* * Re-allocate the device port. This causes all current connections to be * terminated. (New in 2.0) * This routine causes the current device port (and all other driver ports) to be * deallocated. A new device port is allocated and returned in the new_dev_port * argument. The purpose of this call is to provide security by allowing a privileged * entity to terminate all connections to the device and re-register the device in the * proper name space. The host_priv_port argument is the port returned by the * host_priv_port() trap (see <mach_host.h>). */ kern_return_t snddriver_new_device_port ( port_t device_port, // current valid device port port_t host_priv_port, // from host_priv_self() port_t *new_dev_port); // new device port /* * Exchange the current dsp owner port with a new one. New for 2.0. */ kern_return_t snddriver_reset_dsp_owner ( port_t device_port, // valid device port port_t old_owner_port, // old dsp owner port port_t new_owner_port, // new dsp owner port port_t new_negotiation);// new dsp negotiation port /* * Exchange the current sndin owner port with a new one. New for 2.0. */ kern_return_t snddriver_reset_sndin_owner ( port_t device_port, // valid device port port_t old_owner_port, // old sndin owner port port_t new_owner_port, // new sndin owner port port_t new_negotiation);// new sndin negotiation port /* * Exchange the current sndout owner port with a new one. New for 2.0. */ kern_return_t snddriver_reset_sndout_owner ( port_t device_port, // valid device port port_t old_owner_port, // old sndout owner port port_t new_owner_port, // new sndout owner port port_t new_negotiation);// new sndout negotiation port /* * User-initiated dma transfer to dsp. See programming examples. (New in 2.0.) */ kern_return_t snddriver_dsp_dma_write ( port_t cmd_port, // valid dsp command port int size, // # dsp words to transfer int mode, // mode of dma [1..5] void *data); // data to output /* * User-initiated dma from dsp. See programming examples. (New in 2.0.) */ kern_return_t snddriver_dsp_dma_read ( port_t cmd_port, // valid dsp command port int size, // .. of dsp buffer in words int mode, // mode of dma [1..5] void **data); // where data is put /* * Set the size of the sound out buffers used by snddriver_stream_setup() when * it configures the stream. The default is vm_page_size. * New in 2.0. */ kern_return_t snddriver_set_sndout_bufsize ( port_t dev_port, // valid device port port_t owner_port, // valid owner port int sobsize); // so buf size /* * Set the number of sound out buffers used by snddriver_stream_setup() when * it configures the stream. The default is 4. * New in 2.0. */ kern_return_t snddriver_set_sndout_bufcount ( port_t dev_port, // valid device port port_t owner_port, // valid owner port int sobcount); // so buf count kern_return_t snddriver_stream_setup ( port_t dev_port, // valid device port port_t owner_port, // valid owner port int config, // stream configuration int buf_size, // samples per buffer int sample_size, // bytes per sample int low_water, // low water mark int high_water, // high water mark int *protocol, // modified dsp protocol port_t *stream_port); kern_return_t snddriver_dsp_protocol ( port_t device_port, // valid device port port_t owner_port, // port registered as owner int protocol); /* * Stream interaction functions */ kern_return_t snddriver_stream_start_reading ( port_t stream_port, // valid stream port char *filename, //? backing store (or null) NYI int data_size, // count of samples to read int tag, // user data boolean_t started_msg, // send message when started boolean_t completed_msg, // send message when completed boolean_t aborted_msg, // send message when aborted boolean_t paused_msg, // send message when paused boolean_t resumed_msg, // send message when resumed boolean_t overflow_msg, // send message when overflowed port_t reply_port); // port for above messages kern_return_t snddriver_stream_start_writing ( port_t stream_port, // valid stream port void *data, // pointer to samples int data_size, // count of samples to write int tag, // user data boolean_t preempt, // play preemptively boolean_t deallocate, // deallocate data when sent boolean_t started_msg, // send message when started boolean_t completed_msg, // send message when completed boolean_t aborted_msg, // send message when aborted boolean_t paused_msg, // send message when paused boolean_t resumed_msg, // send message when resumed boolean_t overflow_msg, // send message when overflowed port_t reply_port); kern_return_t snddriver_stream_control ( port_t stream_port, // valid stream port int tag, // tag to identify stream int snd_control); kern_return_t snddriver_stream_nsamples ( port_t stream_port, // valid stream port int *nsamples);