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/* $OpenBSD: nec86hwvar.h,v 1.3 2016/09/19 06:46:43 ratchov Exp $ */
/* $NecBSD: nec86hwvar.h,v 1.10 1998/03/14 07:04:55 kmatsuda Exp $ */
/* $NetBSD$ */
/*
* [NetBSD for NEC PC-98 series]
* Copyright (c) 1996, 1997, 1998
* NetBSD/pc98 porting staff. All rights reserved.
*
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/*
* nec86hwvar.h
*
* NEC PC-9801-86 SoundBoard PCM driver for NetBSD/pc98.
* Written by NAGAO Tadaaki, Feb 10, 1996.
*/
#ifndef _NEC86HWVAR_H_
#define _NEC86HWVAR_H_
/* types of function which writes to/reads from FIFO buffer */
struct nec86hw_softc; /* dummy declaration */
typedef int (*func_fifo_output_t) (struct nec86hw_softc *, int);
typedef void (*func_fifo_input_t) (struct nec86hw_softc *, int);
struct nec86hw_softc {
struct device sc_dev; /* base device */
bus_space_tag_t sc_iot; /* bus space tag */
bus_space_handle_t sc_ioh; /* nec86 core chip space handle */
u_int sc_cfgflags; /* config flags */
#define NEC86HW_RATE_TYPE(flags) ((flags) & 1)
#define NEC86HW_NRATE_TYPE 2
u_short sc_open; /* reference count of open calls */
u_long sc_irate; /* sample rate for input */
u_long sc_orate; /* sample rate for output */
u_long hw_irate; /* hardware rate for input */
u_char hw_irate_bits;
u_long hw_orate; /* hardware rate for output */
u_char hw_orate_bits;
u_int encoding; /* ulaw / linear */
u_int precision; /* 8/16 bits */
int channels; /* monoral(1) / stereo(2) */
int in_port; /* Just keep track of it */
#define NEC86HW_INPUT_MIXER 0
int out_port; /* Just keep track of it */
#define NEC86HW_OUTPUT_MIXER 0
int model; /* board identification number */
/* linear interpolation */
u_long conv_acc;
u_short conv_last0;
u_short conv_last0_l;
u_short conv_last0_r;
u_short conv_last1;
u_short conv_last1_l;
u_short conv_last1_r;
void (*sc_intr)(void *); /* DMA completion intr handler */
void *sc_arg; /* arg for sc_intr() */
char intr_busy; /* whether the hardware running */
/* pseudo-DMA */
u_char *pdma_ptr; /* pointer to the data buffer */
int pdma_count; /* size of the data in frames */
int pdma_nchunk; /* number of chunks to do with */
int pdma_watermark; /* interrupt trigger level */
char pdma_padded; /* the buffer is padded out with
dummy zero's */
char pdma_mode; /* input/output indicator */
#define PDMA_MODE_NONE 0
#define PDMA_MODE_OUTPUT 1
#define PDMA_MODE_INPUT 2
/* function which writes to/reads from FIFO buffer */
func_fifo_output_t func_fifo_output;
func_fifo_input_t func_fifo_input;
};
struct nec86hw_functable_entry {
int precision;
int channels;
func_fifo_output_t func_fifo_output_direct;
func_fifo_input_t func_fifo_input_direct;
func_fifo_output_t func_fifo_output_resamp;
func_fifo_input_t func_fifo_input_resamp;
};
/*
* Interrupt watermarks for the FIFO ring buffer on the hardware.
*
* These values must satisfy:
* 0 < WATERMARK_RATIO_OUT <= WATERMARK_MAX_RATIO
* 0 < WATERMARK_RATIO_IN <= WATERMARK_MAX_RATIO.
* (For more details, see also nec86hw_pdma_output() and nec86hw_pdma_input()
* in nec86hw.c)
*/
#define WATERMARK_MAX_RATIO 100
#define WATERMARK_RATIO_OUT 50 /* 50% of the blocksize */
#define WATERMARK_RATIO_IN 50 /* 50% of NEC86_BUFFSIZE */
/*
* Declarations of prototypes.
*/
#ifdef _KERNEL
void nec86hw_attach(struct nec86hw_softc *);
int nec86hw_open(void *, int);
void nec86hw_close(void *);
int nec86hw_set_params(void *, int, int, struct audio_params *,
struct audio_params *);
int nec86hw_round_blocksize(void *, int);
int nec86hw_set_out_port(void *, int);
int nec86hw_get_out_port(void *);
int nec86hw_set_in_port(void *, int);
int nec86hw_get_in_port(void *);
int nec86hw_commit_settings(void *);
int nec86hw_setfd(void *, int);
int nec86hw_mixer_set_port(void *, mixer_ctrl_t *);
int nec86hw_mixer_get_port(void *, mixer_ctrl_t *);
int nec86hw_mixer_query_devinfo(void *, mixer_devinfo_t *);
int nec86hw_pdma_init_output(void *, void *, int);
int nec86hw_pdma_init_input(void *, void *, int);
int nec86hw_pdma_output(void *, void *, int, void (*)(void *), void *);
int nec86hw_pdma_input(void *, void *, int, void (*)(void *), void *);
int nec86hw_speaker_ctl(void *, int);
int nec86hw_halt_pdma(void *);
int nec86hw_cont_pdma(void *);
u_char nec86hw_rate_bits(struct nec86hw_softc *, u_long);
int nec86hw_round_watermark(int);
int nec86hw_reset(struct nec86hw_softc *);
void nec86hw_set_mode_playing(struct nec86hw_softc *);
void nec86hw_set_mode_recording(struct nec86hw_softc *);
void nec86hw_set_volume(struct nec86hw_softc *, int, u_char);
void nec86hw_start_fifo(struct nec86hw_softc *);
void nec86hw_stop_fifo(struct nec86hw_softc *);
void nec86hw_enable_fifointr(struct nec86hw_softc *);
void nec86hw_disable_fifointr(struct nec86hw_softc *);
int nec86hw_seeif_intrflg(struct nec86hw_softc *);
void nec86hw_clear_intrflg(struct nec86hw_softc *);
void nec86hw_reset_fifo(struct nec86hw_softc *);
void nec86hw_set_watermark(struct nec86hw_softc *, int);
void nec86hw_set_precision_real(struct nec86hw_softc *, u_int);
void nec86hw_set_rate_real(struct nec86hw_softc *, u_char);
void nec86hw_output_chunk(struct nec86hw_softc *);
void nec86hw_input_chunk(struct nec86hw_softc *);
int nec86fifo_output_mono_8_direct(struct nec86hw_softc *, int);
int nec86fifo_output_mono_16_direct(struct nec86hw_softc *, int);
int nec86fifo_output_stereo_8_direct(struct nec86hw_softc *, int);
int nec86fifo_output_stereo_16_direct(struct nec86hw_softc *, int);
int nec86fifo_output_mono_8_resamp(struct nec86hw_softc *, int);
int nec86fifo_output_mono_16_resamp(struct nec86hw_softc *, int);
int nec86fifo_output_stereo_8_resamp(struct nec86hw_softc *, int);
int nec86fifo_output_stereo_16_resamp(struct nec86hw_softc *, int);
void nec86fifo_input_mono_8_direct(struct nec86hw_softc *, int);
void nec86fifo_input_mono_16_direct(struct nec86hw_softc *, int);
void nec86fifo_input_stereo_8_direct(struct nec86hw_softc *, int);
void nec86fifo_input_stereo_16_direct(struct nec86hw_softc *, int);
void nec86fifo_input_mono_8_resamp(struct nec86hw_softc *, int);
void nec86fifo_input_mono_16_resamp(struct nec86hw_softc *, int);
void nec86fifo_input_stereo_8_resamp(struct nec86hw_softc *, int);
void nec86fifo_input_stereo_16_resamp(struct nec86hw_softc *, int);
void nec86fifo_padding(struct nec86hw_softc *, int);
int nec86hw_intr(void *);
int nec86_get_props(void *);
#endif /* _KERNEL */
#endif /* !_NEC86HWVAR_H_ */
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