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NetBSD/sys/dev/isa/gus.c

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/* $NetBSD: gus.c,v 1.68 2000/02/07 22:07:31 thorpej Exp $ */
/*-
* Copyright (c) 1996, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ken Hornstein and John Kohl.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
*
* TODO:
* . figure out why mixer activity while sound is playing causes problems
* (phantom interrupts?)
* . figure out a better deinterleave strategy that avoids sucking up
* CPU, memory and cache bandwidth. (Maybe a special encoding?
* Maybe use the double-speed sampling/hardware deinterleave trick
* from the GUS SDK?) A 486/33 isn't quite fast enough to keep
* up with 44.1kHz 16-bit stereo output without some drop-outs.
* . use CS4231 for 16-bit sampling, for a-law and mu-law playback.
* . actually test full-duplex sampling(recording) and playback.
*/
/*
* Gravis UltraSound driver
*
* For more detailed information, see the GUS developers' kit
* available on the net at:
*
* http://www.gravis.com/Public/sdk/GUSDK222.ZIP
*
* See ultrawrd.doc inside--it's MS Word (ick), but it's the bible
*
*/
/*
* The GUS Max has a slightly strange set of connections between the CS4231
* and the GF1 and the DMA interconnects. It's set up so that the CS4231 can
* be playing while the GF1 is loading patches from the system.
*
* Here's a recreation of the DMA interconnect diagram:
*
* GF1
* +---------+ digital
* | | record ASIC
* | |--------------+
* | | | +--------+
* | | play (dram) | +----+ | |
* | |--------------(------|-\ | | +-+ |
* +---------+ | | >-|----|---|C|--|------ dma chan 1
* | +---|-/ | | +-+ |
* | | +----+ | | |
* | | +----+ | | |
* +---------+ +-+ +--(---|-\ | | | |
* | | play |8| | | >-|----|----+---|------ dma chan 2
* | ---C----|--------|/|------(---|-/ | | |
* | ^ |record |1| | +----+ | |
* | | | /----|6|------+ +--------+
* | ---+----|--/ +-+
* +---------+
* CS4231 8-to-16 bit bus conversion, if needed
*
*
* "C" is an optional combiner.
*
*/
#include "gus.h"
#if NGUS > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/buf.h>
#include <sys/fcntl.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <machine/cpu.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <machine/cpufunc.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/mulaw.h>
#include <dev/auconv.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <i386/isa/icu.h>
#include <dev/ic/ics2101reg.h>
#include <dev/ic/cs4231reg.h>
#include <dev/ic/ad1848reg.h>
#include <dev/isa/ics2101var.h>
#include <dev/isa/ad1848var.h>
#include <dev/isa/cs4231var.h>
#include "gusreg.h"
#ifdef AUDIO_DEBUG
#define STATIC /* empty; for debugging symbols */
#else
#define STATIC static
#endif
/*
* Software state of a single "voice" on the GUS
*/
struct gus_voice {
/*
* Various control bits
*/
unsigned char voccntl; /* State of voice control register */
unsigned char volcntl; /* State of volume control register */
unsigned char pan_pos; /* Position of volume panning (4 bits) */
int rate; /* Sample rate of voice being played back */
/*
* Address of the voice data into the GUS's DRAM. 20 bits each
*/
u_long start_addr; /* Starting address of voice data loop area */
u_long end_addr; /* Ending address of voice data loop */
u_long current_addr; /* Beginning address of voice data
(start playing here) */
/*
* linear volume values for the GUS's volume ramp. 0-511 (9 bits).
* These values must be translated into the logarithmic values using
* gus_log_volumes[]
*/
int start_volume; /* Starting position of volume ramp */
int current_volume; /* Current position of volume on volume ramp */
int end_volume; /* Ending position of volume on volume ramp */
};
/*
* Software state of GUS
*/
struct gus_softc {
struct device sc_dev; /* base device */
void *sc_ih; /* interrupt vector */
bus_space_tag_t sc_iot; /* tag */
isa_chipset_tag_t sc_ic; /* ISA chipset info */
bus_space_handle_t sc_ioh1; /* handle */
bus_space_handle_t sc_ioh2; /* handle */
bus_space_handle_t sc_ioh3; /* ICS2101 handle */
bus_space_handle_t sc_ioh4; /* MIDI handle */
int sc_iobase; /* I/O base address */
int sc_irq; /* IRQ used */
int sc_playdrq; /* DMA channel for play */
bus_size_t sc_play_maxsize; /* DMA size for play */
int sc_recdrq; /* DMA channel for recording */
bus_size_t sc_req_maxsize; /* DMA size for recording */
int sc_flags; /* Various flags about the GUS */
#define GUS_MIXER_INSTALLED 0x01 /* An ICS mixer is installed */
#define GUS_LOCKED 0x02 /* GUS is busy doing multi-phase DMA */
#define GUS_CODEC_INSTALLED 0x04 /* CS4231 installed/MAX */
#define GUS_PLAYING 0x08 /* GUS is playing a voice */
#define GUS_DMAOUT_ACTIVE 0x10 /* GUS is busy doing audio DMA */
#define GUS_DMAIN_ACTIVE 0x20 /* GUS is busy sampling */
#define GUS_OPEN 0x100 /* GUS is open */
int sc_dsize; /* Size of GUS DRAM */
int sc_voices; /* Number of active voices */
u_char sc_revision; /* Board revision of GUS */
u_char sc_mixcontrol; /* Value of GUS_MIX_CONTROL register */
u_long sc_orate; /* Output sampling rate */
u_long sc_irate; /* Input sampling rate */
int sc_encoding; /* Current data encoding type */
int sc_precision; /* # of bits of precision */
int sc_channels; /* Number of active channels */
int sc_blocksize; /* Current blocksize */
int sc_chanblocksize; /* Current blocksize for each in-use
channel */
short sc_nbufs; /* how many on-GUS bufs per-channel */
short sc_bufcnt; /* how many need to be played */
void *sc_deintr_buf; /* deinterleave buffer for stereo */
int sc_ogain; /* Output gain control */
u_char sc_out_port; /* Current out port (generic only) */
u_char sc_in_port; /* keep track of it when no codec */
void (*sc_dmaoutintr) __P((void*)); /* DMA completion intr handler */
void *sc_outarg; /* argument for sc_dmaoutintr() */
u_char *sc_dmaoutaddr; /* for isa_dmadone */
u_long sc_gusaddr; /* where did we just put it? */
int sc_dmaoutcnt; /* for isa_dmadone */
void (*sc_dmainintr) __P((void*)); /* DMA completion intr handler */
void *sc_inarg; /* argument for sc_dmaoutintr() */
u_char *sc_dmainaddr; /* for isa_dmadone */
int sc_dmaincnt; /* for isa_dmadone */
struct stereo_dma_intr {
void (*intr)__P((void *));
void *arg;
u_char *buffer;
u_long dmabuf;
int size;
int flags;
} sc_stereo;
/*
* State information for linear audio layer
*/
int sc_dmabuf; /* Which ring buffer we're DMA'ing to */
int sc_playbuf; /* Which ring buffer we're playing */
/*
* Voice information array. All voice-specific information is stored
* here
*/
struct gus_voice sc_voc[32]; /* Voice data for each voice */
union {
struct ics2101_softc sc_mixer_u;
struct ad1848_isa_softc sc_codec_u;
} u;
#define sc_mixer u.sc_mixer_u
#define sc_codec u.sc_codec_u
};
struct ics2101_volume {
u_char left;
u_char right;
};
#define HAS_CODEC(sc) ((sc)->sc_flags & GUS_CODEC_INSTALLED)
#define HAS_MIXER(sc) ((sc)->sc_flags & GUS_MIXER_INSTALLED)
/*
* Mixer devices for ICS2101
*/
/* MIC IN mute, line in mute, line out mute are first since they can be done
even if no ICS mixer. */
#define GUSICS_MIC_IN_MUTE 0
#define GUSICS_LINE_IN_MUTE 1
#define GUSICS_MASTER_MUTE 2
#define GUSICS_CD_MUTE 3
#define GUSICS_DAC_MUTE 4
#define GUSICS_MIC_IN_LVL 5
#define GUSICS_LINE_IN_LVL 6
#define GUSICS_CD_LVL 7
#define GUSICS_DAC_LVL 8
#define GUSICS_MASTER_LVL 9
#define GUSICS_RECORD_SOURCE 10
/* Classes */
#define GUSICS_INPUT_CLASS 11
#define GUSICS_OUTPUT_CLASS 12
#define GUSICS_RECORD_CLASS 13
/*
* Mixer & MUX devices for CS4231
*/
#define GUSMAX_MONO_LVL 0 /* mic input to MUX;
also mono mixer input */
#define GUSMAX_DAC_LVL 1 /* input to MUX; also mixer input */
#define GUSMAX_LINE_IN_LVL 2 /* input to MUX; also mixer input */
#define GUSMAX_CD_LVL 3 /* mixer input only */
#define GUSMAX_MONITOR_LVL 4 /* digital mix (?) */
#define GUSMAX_OUT_LVL 5 /* output level. (?) */
#define GUSMAX_SPEAKER_LVL 6 /* pseudo-device for mute */
#define GUSMAX_LINE_IN_MUTE 7 /* pre-mixer */
#define GUSMAX_DAC_MUTE 8 /* pre-mixer */
#define GUSMAX_CD_MUTE 9 /* pre-mixer */
#define GUSMAX_MONO_MUTE 10 /* pre-mixer--microphone/mono */
#define GUSMAX_MONITOR_MUTE 11 /* post-mixer level/mute */
#define GUSMAX_SPEAKER_MUTE 12 /* speaker mute */
#define GUSMAX_REC_LVL 13 /* post-MUX gain */
#define GUSMAX_RECORD_SOURCE 14
/* Classes */
#define GUSMAX_INPUT_CLASS 15
#define GUSMAX_RECORD_CLASS 16
#define GUSMAX_MONITOR_CLASS 17
#define GUSMAX_OUTPUT_CLASS 18
#ifdef AUDIO_DEBUG
#define GUSPLAYDEBUG /*XXX*/
#define DPRINTF(x) if (gusdebug) printf x
#define DMAPRINTF(x) if (gusdmadebug) printf x
int gusdebug = 0;
int gusdmadebug = 0;
#else
#define DPRINTF(x)
#define DMAPRINTF(x)
#endif
int gus_dostereo = 1;
#define NDMARECS 2048
#ifdef GUSPLAYDEBUG
int gusstats = 0;
struct dma_record {
struct timeval tv;
u_long gusaddr;
caddr_t bsdaddr;
u_short count;
u_char channel;
u_char direction;
} dmarecords[NDMARECS];
int dmarecord_index = 0;
#endif
/*
* local routines
*/
int gusopen __P((void *, int));
void gusclose __P((void *));
void gusmax_close __P((void *));
int gusintr __P((void *));
int gus_set_in_gain __P((caddr_t, u_int, u_char));
int gus_get_in_gain __P((caddr_t));
int gus_set_out_gain __P((caddr_t, u_int, u_char));
int gus_get_out_gain __P((caddr_t));
int gus_set_params __P((void *, int, int, struct audio_params *, struct audio_params *));
int gusmax_set_params __P((void *, int, int, struct audio_params *, struct audio_params *));
int gus_round_blocksize __P((void *, int));
int gus_commit_settings __P((void *));
int gus_dma_output __P((void *, void *, int, void (*)(void *), void *));
int gus_dma_input __P((void *, void *, int, void (*)(void *), void *));
int gus_halt_out_dma __P((void *));
int gus_halt_in_dma __P((void *));
int gus_speaker_ctl __P((void *, int));
int gusmaxopen __P((void *, int));
int gusmax_round_blocksize __P((void *, int));
int gusmax_commit_settings __P((void *));
int gusmax_dma_output __P((void *, void *, int, void (*)(void *), void *));
int gusmax_dma_input __P((void *, void *, int, void (*)(void *), void *));
int gusmax_halt_out_dma __P((void *));
int gusmax_halt_in_dma __P((void *));
int gusmax_speaker_ctl __P((void *, int));
int gus_getdev __P((void *, struct audio_device *));
STATIC void gus_deinterleave __P((struct gus_softc *, void *, int));
STATIC int gus_mic_ctl __P((void *, int));
STATIC int gus_linein_ctl __P((void *, int));
STATIC int gus_test_iobase __P((bus_space_tag_t, int));
STATIC void guspoke __P((bus_space_tag_t, bus_space_handle_t, long, u_char));
STATIC void gusdmaout __P((struct gus_softc *, int, u_long, caddr_t, int));
STATIC int gus_init_cs4231 __P((struct gus_softc *));
STATIC void gus_init_ics2101 __P((struct gus_softc *));
STATIC void gus_set_chan_addrs __P((struct gus_softc *));
STATIC void gusreset __P((struct gus_softc *, int));
STATIC void gus_set_voices __P((struct gus_softc *, int));
STATIC void gus_set_volume __P((struct gus_softc *, int, int));
STATIC void gus_set_samprate __P((struct gus_softc *, int, int));
STATIC void gus_set_recrate __P((struct gus_softc *, u_long));
STATIC void gus_start_voice __P((struct gus_softc *, int, int));
STATIC void gus_stop_voice __P((struct gus_softc *, int, int));
STATIC void gus_set_endaddr __P((struct gus_softc *, int, u_long));
#ifdef GUSPLAYDEBUG
STATIC void gus_set_curaddr __P((struct gus_softc *, int, u_long));
STATIC u_long gus_get_curaddr __P((struct gus_softc *, int));
#endif
STATIC int gus_dmaout_intr __P((struct gus_softc *));
STATIC void gus_dmaout_dointr __P((struct gus_softc *));
STATIC void gus_dmaout_timeout __P((void *));
STATIC int gus_dmain_intr __P((struct gus_softc *));
STATIC int gus_voice_intr __P((struct gus_softc *));
STATIC void gus_start_playing __P((struct gus_softc *, int));
STATIC int gus_continue_playing __P((struct gus_softc *, int));
STATIC u_char guspeek __P((bus_space_tag_t, bus_space_handle_t, u_long));
STATIC u_long convert_to_16bit __P((u_long));
STATIC int gus_mixer_set_port __P((void *, mixer_ctrl_t *));
STATIC int gus_mixer_get_port __P((void *, mixer_ctrl_t *));
STATIC int gusmax_mixer_set_port __P((void *, mixer_ctrl_t *));
STATIC int gusmax_mixer_get_port __P((void *, mixer_ctrl_t *));
STATIC int gus_mixer_query_devinfo __P((void *, mixer_devinfo_t *));
STATIC int gusmax_mixer_query_devinfo __P((void *, mixer_devinfo_t *));
STATIC int gus_query_encoding __P((void *, struct audio_encoding *));
STATIC int gus_get_props __P((void *));
STATIC int gusmax_get_props __P((void *));
STATIC void gusics_master_mute __P((struct ics2101_softc *, int));
STATIC void gusics_dac_mute __P((struct ics2101_softc *, int));
STATIC void gusics_mic_mute __P((struct ics2101_softc *, int));
STATIC void gusics_linein_mute __P((struct ics2101_softc *, int));
STATIC void gusics_cd_mute __P((struct ics2101_softc *, int));
void stereo_dmaintr __P((void *));
/*
* ISA bus driver routines
*/
int gusprobe __P((struct device *, struct cfdata *, void *));
void gusattach __P((struct device *, struct device *, void *));
struct cfattach gus_ca = {
sizeof(struct gus_softc), gusprobe, gusattach,
};
/*
* A mapping from IRQ/DRQ values to the values used in the GUS's internal
* registers. A zero means that the referenced IRQ/DRQ is invalid
*/
static int gus_irq_map[] = {
IRQUNK, IRQUNK, 1, 3, IRQUNK, 2, IRQUNK, 4, IRQUNK, 1, IRQUNK, 5, 6,
IRQUNK, IRQUNK, 7
};
static int gus_drq_map[] = {
DRQUNK, 1, DRQUNK, 2, DRQUNK, 3, 4, 5
};
/*
* A list of valid base addresses for the GUS
*/
static int gus_base_addrs[] = {
0x210, 0x220, 0x230, 0x240, 0x250, 0x260
};
static int gus_addrs = sizeof(gus_base_addrs) / sizeof(gus_base_addrs[0]);
/*
* Maximum frequency values of the GUS based on the number of currently active
* voices. Since the GUS samples a voice every 1.6 us, the maximum frequency
* is dependent on the number of active voices. Yes, it is pretty weird.
*/
static int gus_max_frequency[] = {
44100, /* 14 voices */
41160, /* 15 voices */
38587, /* 16 voices */
36317, /* 17 voices */
34300, /* 18 voices */
32494, /* 19 voices */
30870, /* 20 voices */
29400, /* 21 voices */
28063, /* 22 voices */
26843, /* 23 voices */
25725, /* 24 voices */
24696, /* 25 voices */
23746, /* 26 voices */
22866, /* 27 voices */
22050, /* 28 voices */
21289, /* 29 voices */
20580, /* 30 voices */
19916, /* 31 voices */
19293 /* 32 voices */
};
/*
* A mapping of linear volume levels to the logarithmic volume values used
* by the GF1 chip on the GUS. From GUS SDK vol1.c.
*/
static unsigned short gus_log_volumes[512] = {
0x0000,
0x0700, 0x07ff, 0x0880, 0x08ff, 0x0940, 0x0980, 0x09c0, 0x09ff, 0x0a20,
0x0a40, 0x0a60, 0x0a80, 0x0aa0, 0x0ac0, 0x0ae0, 0x0aff, 0x0b10, 0x0b20,
0x0b30, 0x0b40, 0x0b50, 0x0b60, 0x0b70, 0x0b80, 0x0b90, 0x0ba0, 0x0bb0,
0x0bc0, 0x0bd0, 0x0be0, 0x0bf0, 0x0bff, 0x0c08, 0x0c10, 0x0c18, 0x0c20,
0x0c28, 0x0c30, 0x0c38, 0x0c40, 0x0c48, 0x0c50, 0x0c58, 0x0c60, 0x0c68,
0x0c70, 0x0c78, 0x0c80, 0x0c88, 0x0c90, 0x0c98, 0x0ca0, 0x0ca8, 0x0cb0,
0x0cb8, 0x0cc0, 0x0cc8, 0x0cd0, 0x0cd8, 0x0ce0, 0x0ce8, 0x0cf0, 0x0cf8,
0x0cff, 0x0d04, 0x0d08, 0x0d0c, 0x0d10, 0x0d14, 0x0d18, 0x0d1c, 0x0d20,
0x0d24, 0x0d28, 0x0d2c, 0x0d30, 0x0d34, 0x0d38, 0x0d3c, 0x0d40, 0x0d44,
0x0d48, 0x0d4c, 0x0d50, 0x0d54, 0x0d58, 0x0d5c, 0x0d60, 0x0d64, 0x0d68,
0x0d6c, 0x0d70, 0x0d74, 0x0d78, 0x0d7c, 0x0d80, 0x0d84, 0x0d88, 0x0d8c,
0x0d90, 0x0d94, 0x0d98, 0x0d9c, 0x0da0, 0x0da4, 0x0da8, 0x0dac, 0x0db0,
0x0db4, 0x0db8, 0x0dbc, 0x0dc0, 0x0dc4, 0x0dc8, 0x0dcc, 0x0dd0, 0x0dd4,
0x0dd8, 0x0ddc, 0x0de0, 0x0de4, 0x0de8, 0x0dec, 0x0df0, 0x0df4, 0x0df8,
0x0dfc, 0x0dff, 0x0e02, 0x0e04, 0x0e06, 0x0e08, 0x0e0a, 0x0e0c, 0x0e0e,
0x0e10, 0x0e12, 0x0e14, 0x0e16, 0x0e18, 0x0e1a, 0x0e1c, 0x0e1e, 0x0e20,
0x0e22, 0x0e24, 0x0e26, 0x0e28, 0x0e2a, 0x0e2c, 0x0e2e, 0x0e30, 0x0e32,
0x0e34, 0x0e36, 0x0e38, 0x0e3a, 0x0e3c, 0x0e3e, 0x0e40, 0x0e42, 0x0e44,
0x0e46, 0x0e48, 0x0e4a, 0x0e4c, 0x0e4e, 0x0e50, 0x0e52, 0x0e54, 0x0e56,
0x0e58, 0x0e5a, 0x0e5c, 0x0e5e, 0x0e60, 0x0e62, 0x0e64, 0x0e66, 0x0e68,
0x0e6a, 0x0e6c, 0x0e6e, 0x0e70, 0x0e72, 0x0e74, 0x0e76, 0x0e78, 0x0e7a,
0x0e7c, 0x0e7e, 0x0e80, 0x0e82, 0x0e84, 0x0e86, 0x0e88, 0x0e8a, 0x0e8c,
0x0e8e, 0x0e90, 0x0e92, 0x0e94, 0x0e96, 0x0e98, 0x0e9a, 0x0e9c, 0x0e9e,
0x0ea0, 0x0ea2, 0x0ea4, 0x0ea6, 0x0ea8, 0x0eaa, 0x0eac, 0x0eae, 0x0eb0,
0x0eb2, 0x0eb4, 0x0eb6, 0x0eb8, 0x0eba, 0x0ebc, 0x0ebe, 0x0ec0, 0x0ec2,
0x0ec4, 0x0ec6, 0x0ec8, 0x0eca, 0x0ecc, 0x0ece, 0x0ed0, 0x0ed2, 0x0ed4,
0x0ed6, 0x0ed8, 0x0eda, 0x0edc, 0x0ede, 0x0ee0, 0x0ee2, 0x0ee4, 0x0ee6,
0x0ee8, 0x0eea, 0x0eec, 0x0eee, 0x0ef0, 0x0ef2, 0x0ef4, 0x0ef6, 0x0ef8,
0x0efa, 0x0efc, 0x0efe, 0x0eff, 0x0f01, 0x0f02, 0x0f03, 0x0f04, 0x0f05,
0x0f06, 0x0f07, 0x0f08, 0x0f09, 0x0f0a, 0x0f0b, 0x0f0c, 0x0f0d, 0x0f0e,
0x0f0f, 0x0f10, 0x0f11, 0x0f12, 0x0f13, 0x0f14, 0x0f15, 0x0f16, 0x0f17,
0x0f18, 0x0f19, 0x0f1a, 0x0f1b, 0x0f1c, 0x0f1d, 0x0f1e, 0x0f1f, 0x0f20,
0x0f21, 0x0f22, 0x0f23, 0x0f24, 0x0f25, 0x0f26, 0x0f27, 0x0f28, 0x0f29,
0x0f2a, 0x0f2b, 0x0f2c, 0x0f2d, 0x0f2e, 0x0f2f, 0x0f30, 0x0f31, 0x0f32,
0x0f33, 0x0f34, 0x0f35, 0x0f36, 0x0f37, 0x0f38, 0x0f39, 0x0f3a, 0x0f3b,
0x0f3c, 0x0f3d, 0x0f3e, 0x0f3f, 0x0f40, 0x0f41, 0x0f42, 0x0f43, 0x0f44,
0x0f45, 0x0f46, 0x0f47, 0x0f48, 0x0f49, 0x0f4a, 0x0f4b, 0x0f4c, 0x0f4d,
0x0f4e, 0x0f4f, 0x0f50, 0x0f51, 0x0f52, 0x0f53, 0x0f54, 0x0f55, 0x0f56,
0x0f57, 0x0f58, 0x0f59, 0x0f5a, 0x0f5b, 0x0f5c, 0x0f5d, 0x0f5e, 0x0f5f,
0x0f60, 0x0f61, 0x0f62, 0x0f63, 0x0f64, 0x0f65, 0x0f66, 0x0f67, 0x0f68,
0x0f69, 0x0f6a, 0x0f6b, 0x0f6c, 0x0f6d, 0x0f6e, 0x0f6f, 0x0f70, 0x0f71,
0x0f72, 0x0f73, 0x0f74, 0x0f75, 0x0f76, 0x0f77, 0x0f78, 0x0f79, 0x0f7a,
0x0f7b, 0x0f7c, 0x0f7d, 0x0f7e, 0x0f7f, 0x0f80, 0x0f81, 0x0f82, 0x0f83,
0x0f84, 0x0f85, 0x0f86, 0x0f87, 0x0f88, 0x0f89, 0x0f8a, 0x0f8b, 0x0f8c,
0x0f8d, 0x0f8e, 0x0f8f, 0x0f90, 0x0f91, 0x0f92, 0x0f93, 0x0f94, 0x0f95,
0x0f96, 0x0f97, 0x0f98, 0x0f99, 0x0f9a, 0x0f9b, 0x0f9c, 0x0f9d, 0x0f9e,
0x0f9f, 0x0fa0, 0x0fa1, 0x0fa2, 0x0fa3, 0x0fa4, 0x0fa5, 0x0fa6, 0x0fa7,
0x0fa8, 0x0fa9, 0x0faa, 0x0fab, 0x0fac, 0x0fad, 0x0fae, 0x0faf, 0x0fb0,
0x0fb1, 0x0fb2, 0x0fb3, 0x0fb4, 0x0fb5, 0x0fb6, 0x0fb7, 0x0fb8, 0x0fb9,
0x0fba, 0x0fbb, 0x0fbc, 0x0fbd, 0x0fbe, 0x0fbf, 0x0fc0, 0x0fc1, 0x0fc2,
0x0fc3, 0x0fc4, 0x0fc5, 0x0fc6, 0x0fc7, 0x0fc8, 0x0fc9, 0x0fca, 0x0fcb,
0x0fcc, 0x0fcd, 0x0fce, 0x0fcf, 0x0fd0, 0x0fd1, 0x0fd2, 0x0fd3, 0x0fd4,
0x0fd5, 0x0fd6, 0x0fd7, 0x0fd8, 0x0fd9, 0x0fda, 0x0fdb, 0x0fdc, 0x0fdd,
0x0fde, 0x0fdf, 0x0fe0, 0x0fe1, 0x0fe2, 0x0fe3, 0x0fe4, 0x0fe5, 0x0fe6,
0x0fe7, 0x0fe8, 0x0fe9, 0x0fea, 0x0feb, 0x0fec, 0x0fed, 0x0fee, 0x0fef,
0x0ff0, 0x0ff1, 0x0ff2, 0x0ff3, 0x0ff4, 0x0ff5, 0x0ff6, 0x0ff7, 0x0ff8,
0x0ff9, 0x0ffa, 0x0ffb, 0x0ffc, 0x0ffd, 0x0ffe, 0x0fff};
#define SELECT_GUS_REG(iot,ioh1,x) bus_space_write_1(iot,ioh1,GUS_REG_SELECT,x)
#define ADDR_HIGH(x) (unsigned int) ((x >> 7L) & 0x1fffL)
#define ADDR_LOW(x) (unsigned int) ((x & 0x7fL) << 9L)
#define GUS_MIN_VOICES 14 /* Minimum possible number of voices */
#define GUS_MAX_VOICES 32 /* Maximum possible number of voices */
#define GUS_VOICE_LEFT 0 /* Voice used for left (and mono) playback */
#define GUS_VOICE_RIGHT 1 /* Voice used for right playback */
#define GUS_MEM_OFFSET 32 /* Offset into GUS memory to begin of buffer */
#define GUS_BUFFER_MULTIPLE 1024 /* Audio buffers are multiples of this */
#define GUS_MEM_FOR_BUFFERS 131072 /* use this many bytes on-GUS */
#define GUS_LEFT_RIGHT_OFFSET (sc->sc_nbufs * sc->sc_chanblocksize + GUS_MEM_OFFSET)
#define GUS_PREC_BYTES (sc->sc_precision >> 3) /* precision to bytes */
/* splgus() must be splaudio() */
#define splgus splaudio
/*
* Interface to higher level audio driver
*/
struct audio_hw_if gus_hw_if = {
gusopen,
gusclose,
NULL, /* drain */
gus_query_encoding,
gus_set_params,
gus_round_blocksize,
gus_commit_settings,
NULL,
NULL,
gus_dma_output,
gus_dma_input,
gus_halt_out_dma,
gus_halt_in_dma,
gus_speaker_ctl,
gus_getdev,
NULL,
gus_mixer_set_port,
gus_mixer_get_port,
gus_mixer_query_devinfo,
ad1848_isa_malloc,
ad1848_isa_free,
ad1848_isa_round_buffersize,
ad1848_isa_mappage,
gus_get_props,
};
static struct audio_hw_if gusmax_hw_if = {
gusmaxopen,
gusmax_close,
NULL, /* drain */
gus_query_encoding, /* query encoding */
gusmax_set_params,
gusmax_round_blocksize,
gusmax_commit_settings,
NULL,
NULL,
gusmax_dma_output,
gusmax_dma_input,
gusmax_halt_out_dma,
gusmax_halt_in_dma,
gusmax_speaker_ctl,
gus_getdev,
NULL,
gusmax_mixer_set_port,
gusmax_mixer_get_port,
gusmax_mixer_query_devinfo,
ad1848_isa_malloc,
ad1848_isa_free,
ad1848_isa_round_buffersize,
ad1848_isa_mappage,
gusmax_get_props,
};
/*
* Some info about the current audio device
*/
struct audio_device gus_device = {
"UltraSound",
"",
"gus",
};
#define FLIP_REV 5 /* This rev has flipped mixer chans */
int
gusprobe(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct isa_attach_args *ia = aux;
int iobase = ia->ia_iobase;
int recdrq = ia->ia_drq2;
/*
* Before we do anything else, make sure requested IRQ and DRQ are
* valid for this card.
*/
/* XXX range check before indexing!! */
if (ia->ia_irq == IRQUNK || gus_irq_map[ia->ia_irq] == IRQUNK) {
printf("gus: invalid irq %d, card not probed\n", ia->ia_irq);
return 0;
}
if (ia->ia_drq == DRQUNK || gus_drq_map[ia->ia_drq] == DRQUNK) {
printf("gus: invalid drq %d, card not probed\n", ia->ia_drq);
return 0;
}
if (recdrq != DRQUNK) {
if (recdrq > 7 || gus_drq_map[recdrq] == DRQUNK) {
printf("gus: invalid second DMA channel (%d), card not probed\n", recdrq);
return 0;
}
} else
recdrq = ia->ia_drq;
if (iobase == IOBASEUNK) {
int i;
for(i = 0; i < gus_addrs; i++)
if (gus_test_iobase(ia->ia_iot, gus_base_addrs[i])) {
iobase = gus_base_addrs[i];
goto done;
}
return 0;
} else if (!gus_test_iobase(ia->ia_iot, iobase))
return 0;
done:
if ((ia->ia_drq != -1 && !isa_drq_isfree(ia->ia_ic, ia->ia_drq)) ||
(recdrq != -1 && !isa_drq_isfree(ia->ia_ic, recdrq)))
return 0;
ia->ia_iobase = iobase;
ia->ia_iosize = GUS_NPORT1;
return 1;
}
/*
* Test to see if a particular I/O base is valid for the GUS. Return true
* if it is.
*/
STATIC int
gus_test_iobase (iot, iobase)
bus_space_tag_t iot;
int iobase;
{
bus_space_handle_t ioh1, ioh2, ioh3, ioh4;
u_char s1, s2;
int s, rv = 0;
/* Map i/o space */
if (bus_space_map(iot, iobase, GUS_NPORT1, 0, &ioh1))
return 0;
if (bus_space_map(iot, iobase+GUS_IOH2_OFFSET, GUS_NPORT2, 0, &ioh2))
goto bad1;
/* XXX Maybe we shouldn't fail on mapping this, but just assume
* the card is of revision 0? */
if (bus_space_map(iot, iobase+GUS_IOH3_OFFSET, GUS_NPORT3, 0, &ioh3))
goto bad2;
if (bus_space_map(iot, iobase+GUS_IOH4_OFFSET, GUS_NPORT4, 0, &ioh4))
goto bad3;
/*
* Reset GUS to an initial state before we do anything.
*/
s = splgus();
delay(500);
SELECT_GUS_REG(iot, ioh2, GUSREG_RESET);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
delay(500);
SELECT_GUS_REG(iot, ioh2, GUSREG_RESET);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, GUSMASK_MASTER_RESET);
delay(500);
splx(s);
/*
* See if we can write to the board's memory
*/
s1 = guspeek(iot, ioh2, 0L);
s2 = guspeek(iot, ioh2, 1L);
guspoke(iot, ioh2, 0L, 0xaa);
guspoke(iot, ioh2, 1L, 0x55);
if (guspeek(iot, ioh2, 0L) != 0xaa)
goto bad;
guspoke(iot, ioh2, 0L, s1);
guspoke(iot, ioh2, 1L, s2);
rv = 1;
bad:
bus_space_unmap(iot, ioh4, GUS_NPORT4);
bad3:
bus_space_unmap(iot, ioh3, GUS_NPORT3);
bad2:
bus_space_unmap(iot, ioh2, GUS_NPORT2);
bad1:
bus_space_unmap(iot, ioh1, GUS_NPORT1);
return rv;
}
/*
* Setup the GUS for use; called shortly after probe
*/
void
gusattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct gus_softc *sc = (void *) self;
struct isa_attach_args *ia = aux;
bus_space_tag_t iot;
bus_space_handle_t ioh1, ioh2, ioh3, ioh4;
int iobase, i;
unsigned char c,d,m;
sc->sc_iot = iot = ia->ia_iot;
sc->sc_ic = ia->ia_ic;
iobase = ia->ia_iobase;
/* Map i/o space */
if (bus_space_map(iot, iobase, GUS_NPORT1, 0, &ioh1))
panic("%s: can't map io port range 1", self->dv_xname);
sc->sc_ioh1 = ioh1;
if (bus_space_map(iot, iobase+GUS_IOH2_OFFSET, GUS_NPORT2, 0, &ioh2))
panic("%s: can't map io port range 2", self->dv_xname);
sc->sc_ioh2 = ioh2;
/* XXX Maybe we shouldn't fail on mapping this, but just assume
* the card is of revision 0? */
if (bus_space_map(iot, iobase+GUS_IOH3_OFFSET, GUS_NPORT3, 0, &ioh3))
panic("%s: can't map io port range 3", self->dv_xname);
sc->sc_ioh3 = ioh3;
if (bus_space_map(iot, iobase+GUS_IOH4_OFFSET, GUS_NPORT4, 0, &ioh4))
panic("%s: can't map io port range 4", self->dv_xname);
sc->sc_ioh4 = ioh4;
sc->sc_iobase = iobase;
sc->sc_irq = ia->ia_irq;
sc->sc_playdrq = ia->ia_drq;
sc->sc_recdrq = ia->ia_drq2;
/*
* Figure out our board rev, and see if we need to initialize the
* mixer
*/
sc->sc_ic = ia->ia_ic;
delay(500);
c = bus_space_read_1(iot, ioh3, GUS_BOARD_REV);
if (c != 0xff)
sc->sc_revision = c;
else
sc->sc_revision = 0;
SELECT_GUS_REG(iot, ioh2, GUSREG_RESET);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
gusreset(sc, GUS_MAX_VOICES); /* initialize all voices */
gusreset(sc, GUS_MIN_VOICES); /* then set to just the ones we use */
/*
* Setup the IRQ and DRQ lines in software, using values from
* config file
*/
m = GUSMASK_LINE_IN|GUSMASK_LINE_OUT; /* disable all */
c = ((unsigned char) gus_irq_map[ia->ia_irq]) | GUSMASK_BOTH_RQ;
if (sc->sc_recdrq == sc->sc_playdrq)
d = (unsigned char) (gus_drq_map[sc->sc_playdrq] |
GUSMASK_BOTH_RQ);
else
d = (unsigned char) (gus_drq_map[sc->sc_playdrq] |
gus_drq_map[sc->sc_recdrq] << 3);
/*
* Program the IRQ and DMA channels on the GUS. Note that we hardwire
* the GUS to only use one IRQ channel, but we give the user the
* option of using two DMA channels (the other one given by the drq2
* option in the config file). Two DMA channels are needed for full-
* duplex operation.
*
* The order of these operations is very magical.
*/
disable_intr(); /* XXX needed? */
bus_space_write_1(iot, ioh1, GUS_REG_CONTROL, GUS_REG_IRQCTL);
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, m);
bus_space_write_1(iot, ioh1, GUS_IRQCTL_CONTROL, 0x00);
bus_space_write_1(iot, ioh1, 0x0f, 0x00);
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, m);
bus_space_write_1(iot, ioh1, GUS_DMA_CONTROL, d | 0x80); /* magic reset? */
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, m | GUSMASK_CONTROL_SEL);
bus_space_write_1(iot, ioh1, GUS_IRQ_CONTROL, c);
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, m);
bus_space_write_1(iot, ioh1, GUS_DMA_CONTROL, d);
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, m | GUSMASK_CONTROL_SEL);
bus_space_write_1(iot, ioh1, GUS_IRQ_CONTROL, c);
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, 0x00);
/* enable line in, line out. leave mic disabled. */
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL,
(m | GUSMASK_LATCHES) & ~(GUSMASK_LINE_OUT|GUSMASK_LINE_IN));
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, 0x00);
enable_intr();
sc->sc_mixcontrol =
(m | GUSMASK_LATCHES) & ~(GUSMASK_LINE_OUT|GUSMASK_LINE_IN);
if (sc->sc_playdrq != -1) {
sc->sc_play_maxsize = isa_dmamaxsize(sc->sc_ic,
sc->sc_playdrq);
if (isa_dmamap_create(sc->sc_ic, sc->sc_playdrq,
sc->sc_play_maxsize, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
printf("%s: can't create map for drq %d\n",
sc->sc_dev.dv_xname, sc->sc_playdrq);
return;
}
}
if (sc->sc_recdrq != -1 && sc->sc_recdrq != sc->sc_playdrq) {
sc->sc_req_maxsize = isa_dmamaxsize(sc->sc_ic,
sc->sc_recdrq);
if (isa_dmamap_create(sc->sc_ic, sc->sc_recdrq,
sc->sc_req_maxsize, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
printf("%s: can't create map for drq %d\n",
sc->sc_dev.dv_xname, sc->sc_recdrq);
return;
}
}
/* XXX WILL THIS ALWAYS WORK THE WAY THEY'RE OVERLAYED?! */
sc->sc_codec.sc_ic = sc->sc_ic;
if (sc->sc_revision >= 5 && sc->sc_revision <= 9) {
sc->sc_flags |= GUS_MIXER_INSTALLED;
gus_init_ics2101(sc);
}
if (sc->sc_revision >= 10)
gus_init_cs4231(sc);
SELECT_GUS_REG(iot, ioh2, GUSREG_RESET);
/*
* Check to see how much memory we have on this card; see if any
* "mirroring" occurs. We're assuming at least 256K already exists
* on the card; otherwise the initial probe would have failed
*/
guspoke(iot, ioh2, 0L, 0x00);
for(i = 1; i < 1024; i++) {
u_long loc;
/*
* See if we've run into mirroring yet
*/
if (guspeek(iot, ioh2, 0L) != 0)
break;
loc = i << 10;
guspoke(iot, ioh2, loc, 0xaa);
if (guspeek(iot, ioh2, loc) != 0xaa)
break;
}
sc->sc_dsize = i;
/* The "official" (3.x) version number cannot easily be obtained.
* The revision register does not correspond to the minor number
* of the board version. Simply use the revision register as
* identification.
*/
sprintf(gus_device.version, "%d", sc->sc_revision);
printf("\n%s: Gravis UltraSound", sc->sc_dev.dv_xname);
if (sc->sc_revision >= 10)
printf(" MAX");
else {
if (HAS_MIXER(sc))
printf(", mixer");
if (HAS_CODEC(sc))
printf(" with CODEC module");
}
printf(", %dKB memory\n", sc->sc_dsize);
/* A GUS MAX should always have a CODEC installed */
if ((sc->sc_revision >= 10) & !(HAS_CODEC(sc)))
printf("%s: WARNING: did not attach CODEC on MAX\n",
sc->sc_dev.dv_xname);
/*
* Setup a default interrupt handler
*/
/* XXX we shouldn't have to use splgus == splclock, nor should
* we use IPL_CLOCK.
*/
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_AUDIO, gusintr, sc /* sc->sc_gusdsp */);
/*
* Set some default values
* XXX others start with 8kHz mono mulaw
*/
sc->sc_irate = sc->sc_orate = 44100;
sc->sc_encoding = AUDIO_ENCODING_SLINEAR_LE;
sc->sc_precision = 16;
sc->sc_voc[GUS_VOICE_LEFT].voccntl |= GUSMASK_DATA_SIZE16;
sc->sc_voc[GUS_VOICE_RIGHT].voccntl |= GUSMASK_DATA_SIZE16;
sc->sc_channels = 1;
sc->sc_ogain = 340;
gus_commit_settings(sc);
/*
* We always put the left channel full left & right channel
* full right.
* For mono playback, we set up both voices playing the same buffer.
*/
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) GUS_VOICE_LEFT);
SELECT_GUS_REG(iot, ioh2, GUSREG_PAN_POS);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, GUS_PAN_FULL_LEFT);
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) GUS_VOICE_RIGHT);
SELECT_GUS_REG(iot, ioh2, GUSREG_PAN_POS);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, GUS_PAN_FULL_RIGHT);
/*
* Attach to the generic audio layer
*/
audio_attach_mi(&gus_hw_if, HAS_CODEC(sc) ? (void *)&sc->sc_codec : (void *)sc, &sc->sc_dev);
}
int
gusopen(addr, flags)
void *addr;
int flags;
{
struct gus_softc *sc = addr;
DPRINTF(("gusopen() called\n"));
if (sc->sc_flags & GUS_OPEN)
return EBUSY;
/*
* Some initialization
*/
sc->sc_flags |= GUS_OPEN;
sc->sc_dmabuf = 0;
sc->sc_playbuf = -1;
sc->sc_bufcnt = 0;
sc->sc_voc[GUS_VOICE_LEFT].start_addr = GUS_MEM_OFFSET - 1;
sc->sc_voc[GUS_VOICE_LEFT].current_addr = GUS_MEM_OFFSET;
if (HAS_CODEC(sc)) {
ad1848_open(&sc->sc_codec.sc_ad1848, flags);
sc->sc_codec.sc_ad1848.mute[AD1848_AUX1_CHANNEL] = 0;
/* turn on DAC output */
ad1848_mute_channel(&sc->sc_codec.sc_ad1848,
AD1848_AUX1_CHANNEL, 0);
if (flags & FREAD) {
sc->sc_codec.sc_ad1848.mute[AD1848_MONO_CHANNEL] = 0;
ad1848_mute_channel(&sc->sc_codec.sc_ad1848,
AD1848_MONO_CHANNEL, 0);
}
} else if (flags & FREAD) {
/* enable/unmute the microphone */
if (HAS_MIXER(sc)) {
gusics_mic_mute(&sc->sc_mixer, 0);
} else
gus_mic_ctl(sc, SPKR_ON);
}
if (sc->sc_nbufs == 0)
gus_round_blocksize(sc, GUS_BUFFER_MULTIPLE); /* default blksiz */
return 0;
}
int
gusmaxopen(addr, flags)
void *addr;
int flags;
{
struct ad1848_isa_softc *ac = addr;
return gusopen(ac->sc_ad1848.parent, flags);
}
STATIC void
gus_deinterleave(sc, buf, size)
struct gus_softc *sc;
void *buf;
int size;
{
/* deinterleave the stereo data. We can use sc->sc_deintr_buf
for scratch space. */
int i;
if (size > sc->sc_blocksize) {
printf("gus: deinterleave %d > %d\n", size, sc->sc_blocksize);
return;
} else if (size < sc->sc_blocksize) {
DPRINTF(("gus: deinterleave %d < %d\n", size, sc->sc_blocksize));
}
/*
* size is in bytes.
*/
if (sc->sc_precision == 16) {
u_short *dei = sc->sc_deintr_buf;
u_short *sbuf = buf;
size >>= 1; /* bytecnt to shortcnt */
/* copy 2nd of each pair of samples to the staging area, while
compacting the 1st of each pair into the original area. */
for (i = 0; i < size/2-1; i++) {
dei[i] = sbuf[i*2+1];
sbuf[i+1] = sbuf[i*2+2];
}
/*
* this has copied one less sample than half of the
* buffer. The first sample of the 1st stream was
* already in place and didn't need copying.
* Therefore, we've moved all of the 1st stream's
* samples into place. We have one sample from 2nd
* stream in the last slot of original area, not
* copied to the staging area (But we don't need to!).
* Copy the remainder of the original stream into place.
*/
bcopy(dei, &sbuf[size/2], i * sizeof(short));
} else {
u_char *dei = sc->sc_deintr_buf;
u_char *sbuf = buf;
for (i = 0; i < size/2-1; i++) {
dei[i] = sbuf[i*2+1];
sbuf[i+1] = sbuf[i*2+2];
}
bcopy(dei, &sbuf[size/2], i);
}
}
/*
* Actually output a buffer to the DSP chip
*/
int
gusmax_dma_output(addr, buf, size, intr, arg)
void * addr;
void *buf;
int size;
void (*intr) __P((void *));
void *arg;
{
struct ad1848_isa_softc *ac = addr;
return gus_dma_output(ac->sc_ad1848.parent, buf, size, intr, arg);
}
/*
* called at splgus() from interrupt handler.
*/
void
stereo_dmaintr(arg)
void *arg;
{
struct gus_softc *sc = arg;
struct stereo_dma_intr *sa = &sc->sc_stereo;
DMAPRINTF(("stereo_dmaintr"));
/*
* Put other half in its place, then call the real interrupt routine :)
*/
sc->sc_dmaoutintr = sa->intr;
sc->sc_outarg = sa->arg;
#ifdef GUSPLAYDEBUG
if (gusstats) {
microtime(&dmarecords[dmarecord_index].tv);
dmarecords[dmarecord_index].gusaddr = sa->dmabuf;
dmarecords[dmarecord_index].bsdaddr = sa->buffer;
dmarecords[dmarecord_index].count = sa->size;
dmarecords[dmarecord_index].channel = 1;
dmarecords[dmarecord_index].direction = 1;
dmarecord_index = ++dmarecord_index % NDMARECS;
}
#endif
gusdmaout(sc, sa->flags, sa->dmabuf, (caddr_t) sa->buffer, sa->size);
sa->flags = 0;
sa->dmabuf = 0;
sa->buffer = 0;
sa->size = 0;
sa->intr = 0;
sa->arg = 0;
}
/*
* Start up DMA output to the card.
* Called at splgus/splaudio already, either from intr handler or from
* generic audio code.
*/
int
gus_dma_output(addr, buf, size, intr, arg)
void * addr;
void *buf;
int size;
void (*intr) __P((void *));
void *arg;
{
struct gus_softc *sc = addr;
u_char *buffer = buf;
u_long boarddma;
int flags;
DMAPRINTF(("gus_dma_output %d @ %p\n", size, buf));
if (size != sc->sc_blocksize) {
DPRINTF(("gus_dma_output reqsize %d not sc_blocksize %d\n",
size, sc->sc_blocksize));
return EINVAL;
}
flags = GUSMASK_DMA_WRITE;
if (sc->sc_precision == 16)
flags |= GUSMASK_DMA_DATA_SIZE;
if (sc->sc_encoding == AUDIO_ENCODING_ULAW ||
sc->sc_encoding == AUDIO_ENCODING_ALAW ||
sc->sc_encoding == AUDIO_ENCODING_ULINEAR_BE ||
sc->sc_encoding == AUDIO_ENCODING_ULINEAR_LE)
flags |= GUSMASK_DMA_INVBIT;
if (sc->sc_channels == 2) {
if (sc->sc_precision == 16) {
if (size & 3) {
DPRINTF(("gus_dma_output: unpaired 16bit samples"));
size &= 3;
}
} else if (size & 1) {
DPRINTF(("gus_dma_output: unpaired samples"));
size &= 1;
}
if (size == 0)
return 0;
gus_deinterleave(sc, (void *)buffer, size);
size >>= 1;
boarddma = size * sc->sc_dmabuf + GUS_MEM_OFFSET;
sc->sc_stereo.intr = intr;
sc->sc_stereo.arg = arg;
sc->sc_stereo.size = size;
sc->sc_stereo.dmabuf = boarddma + GUS_LEFT_RIGHT_OFFSET;
sc->sc_stereo.buffer = buffer + size;
sc->sc_stereo.flags = flags;
if (gus_dostereo) {
intr = stereo_dmaintr;
arg = sc;
}
} else
boarddma = size * sc->sc_dmabuf + GUS_MEM_OFFSET;
sc->sc_flags |= GUS_LOCKED;
sc->sc_dmaoutintr = intr;
sc->sc_outarg = arg;
#ifdef GUSPLAYDEBUG
if (gusstats) {
microtime(&dmarecords[dmarecord_index].tv);
dmarecords[dmarecord_index].gusaddr = boarddma;
dmarecords[dmarecord_index].bsdaddr = buffer;
dmarecords[dmarecord_index].count = size;
dmarecords[dmarecord_index].channel = 0;
dmarecords[dmarecord_index].direction = 1;
dmarecord_index = ++dmarecord_index % NDMARECS;
}
#endif
gusdmaout(sc, flags, boarddma, (caddr_t) buffer, size);
return 0;
}
void
gusmax_close(addr)
void *addr;
{
struct ad1848_isa_softc *ac = addr;
struct gus_softc *sc = ac->sc_ad1848.parent;
#if 0
ac->mute[AD1848_AUX1_CHANNEL] = MUTE_ALL;
ad1848_mute_channel(ac, MUTE_ALL); /* turn off DAC output */
#endif
ad1848_close(&ac->sc_ad1848);
gusclose(sc);
}
/*
* Close out device stuff. Called at splgus() from generic audio layer.
*/
void
gusclose(addr)
void *addr;
{
struct gus_softc *sc = addr;
DPRINTF(("gus_close: sc=%p\n", sc));
/* if (sc->sc_flags & GUS_DMAOUT_ACTIVE) */ {
gus_halt_out_dma(sc);
}
/* if (sc->sc_flags & GUS_DMAIN_ACTIVE) */ {
gus_halt_in_dma(sc);
}
sc->sc_flags &= ~(GUS_OPEN|GUS_LOCKED|GUS_DMAOUT_ACTIVE|GUS_DMAIN_ACTIVE);
if (sc->sc_deintr_buf) {
FREE(sc->sc_deintr_buf, M_DEVBUF);
sc->sc_deintr_buf = NULL;
}
/* turn off speaker, etc. */
/* make sure the voices shut up: */
gus_stop_voice(sc, GUS_VOICE_LEFT, 1);
gus_stop_voice(sc, GUS_VOICE_RIGHT, 0);
}
/*
* Service interrupts. Farm them off to helper routines if we are using the
* GUS for simple playback/record
*/
#ifdef DIAGNOSTIC
int gusintrcnt;
int gusdmaintrcnt;
int gusvocintrcnt;
#endif
int
gusintr(arg)
void *arg;
{
struct gus_softc *sc = arg;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh1 = sc->sc_ioh1;
bus_space_handle_t ioh2 = sc->sc_ioh2;
unsigned char intr;
int retval = 0;
DPRINTF(("gusintr\n"));
#ifdef DIAGNOSTIC
gusintrcnt++;
#endif
if (HAS_CODEC(sc))
retval = ad1848_isa_intr(&sc->sc_codec);
if ((intr = bus_space_read_1(iot, ioh1, GUS_IRQ_STATUS)) & GUSMASK_IRQ_DMATC) {
DMAPRINTF(("gusintr dma flags=%x\n", sc->sc_flags));
#ifdef DIAGNOSTIC
gusdmaintrcnt++;
#endif
retval += gus_dmaout_intr(sc);
if (sc->sc_flags & GUS_DMAIN_ACTIVE) {
SELECT_GUS_REG(iot, ioh2, GUSREG_SAMPLE_CONTROL);
intr = bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
if (intr & GUSMASK_SAMPLE_DMATC) {
retval += gus_dmain_intr(sc);
}
}
}
if (intr & (GUSMASK_IRQ_VOICE | GUSMASK_IRQ_VOLUME)) {
DMAPRINTF(("gusintr voice flags=%x\n", sc->sc_flags));
#ifdef DIAGNOSTIC
gusvocintrcnt++;
#endif
retval += gus_voice_intr(sc);
}
if (retval)
return 1;
return retval;
}
int gus_bufcnt[GUS_MEM_FOR_BUFFERS / GUS_BUFFER_MULTIPLE];
int gus_restart; /* how many restarts? */
int gus_stops; /* how many times did voice stop? */
int gus_falsestops; /* stopped but not done? */
int gus_continues;
struct playcont {
struct timeval tv;
u_int playbuf;
u_int dmabuf;
u_char bufcnt;
u_char vaction;
u_char voccntl;
u_char volcntl;
u_long curaddr;
u_long endaddr;
} playstats[NDMARECS];
int playcntr;
STATIC void
gus_dmaout_timeout(arg)
void *arg;
{
struct gus_softc *sc = arg;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
int s;
printf("%s: dmaout timeout\n", sc->sc_dev.dv_xname);
/*
* Stop any DMA.
*/
s = splgus();
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0);
#if 0
/* XXX we will dmadone below? */
isa_dmaabort(sc->sc_dev.dv_parent, sc->sc_playdrq);
#endif
gus_dmaout_dointr(sc);
splx(s);
}
/*
* Service DMA interrupts. This routine will only get called if we're doing
* a DMA transfer for playback/record requests from the audio layer.
*/
STATIC int
gus_dmaout_intr(sc)
struct gus_softc *sc;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
/*
* If we got a DMA transfer complete from the GUS DRAM, then deal
* with it.
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_CONTROL);
if (bus_space_read_1(iot, ioh2, GUS_DATA_HIGH) & GUSMASK_DMA_IRQPEND) {
untimeout(gus_dmaout_timeout, sc);
gus_dmaout_dointr(sc);
return 1;
}
return 0;
}
STATIC void
gus_dmaout_dointr(sc)
struct gus_softc *sc;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
/* sc->sc_dmaoutcnt - 1 because DMA controller counts from zero?. */
isa_dmadone(sc->sc_ic, sc->sc_playdrq);
sc->sc_flags &= ~GUS_DMAOUT_ACTIVE; /* pending DMA is done */
DMAPRINTF(("gus_dmaout_dointr %d @ %p\n", sc->sc_dmaoutcnt,
sc->sc_dmaoutaddr));
/*
* to prevent clicking, we need to copy last sample
* from last buffer to scratch area just before beginning of
* buffer. However, if we're doing formats that are converted by
* the card during the DMA process, we need to pick up the converted
* byte rather than the one we have in memory.
*/
if (sc->sc_dmabuf == sc->sc_nbufs - 1) {
int i;
switch (sc->sc_encoding) {
case AUDIO_ENCODING_SLINEAR_LE:
case AUDIO_ENCODING_SLINEAR_BE:
if (sc->sc_precision == 8)
goto byte;
/* we have the native format */
for (i = 1; i <= 2; i++)
guspoke(iot, ioh2, sc->sc_gusaddr -
(sc->sc_nbufs - 1) * sc->sc_chanblocksize - i,
sc->sc_dmaoutaddr[sc->sc_dmaoutcnt-i]);
break;
case AUDIO_ENCODING_ULINEAR_LE:
case AUDIO_ENCODING_ULINEAR_BE:
guspoke(iot, ioh2, sc->sc_gusaddr -
(sc->sc_nbufs - 1) * sc->sc_chanblocksize - 2,
guspeek(iot, ioh2,
sc->sc_gusaddr + sc->sc_chanblocksize - 2));
case AUDIO_ENCODING_ALAW:
case AUDIO_ENCODING_ULAW:
byte:
/* we need to fetch the translated byte, then stuff it. */
guspoke(iot, ioh2, sc->sc_gusaddr -
(sc->sc_nbufs - 1) * sc->sc_chanblocksize - 1,
guspeek(iot, ioh2,
sc->sc_gusaddr + sc->sc_chanblocksize - 1));
break;
}
}
/*
* If this is the first half of stereo, "ignore" this one
* and copy out the second half.
*/
if (sc->sc_dmaoutintr == stereo_dmaintr) {
(*sc->sc_dmaoutintr)(sc->sc_outarg);
return;
}
/*
* If the voice is stopped, then start it. Reset the loop
* and roll bits. Call the audio layer routine, since if
* we're starting a stopped voice, that means that the next
* buffer can be filled
*/
sc->sc_flags &= ~GUS_LOCKED;
if (sc->sc_voc[GUS_VOICE_LEFT].voccntl &
GUSMASK_VOICE_STOPPED) {
if (sc->sc_flags & GUS_PLAYING) {
printf("%s: playing yet stopped?\n", sc->sc_dev.dv_xname);
}
sc->sc_bufcnt++; /* another yet to be played */
gus_start_playing(sc, sc->sc_dmabuf);
gus_restart++;
} else {
/*
* set the sound action based on which buffer we
* just transferred. If we just transferred buffer 0
* we want the sound to loop when it gets to the nth
* buffer; if we just transferred
* any other buffer, we want the sound to roll over
* at least one more time. The voice interrupt
* handlers will take care of accounting &
* setting control bits if it's not caught up to us
* yet.
*/
if (++sc->sc_bufcnt == 2) {
/*
* XXX
* If we're too slow in reaction here,
* the voice could be just approaching the
* end of its run. It should be set to stop,
* so these adjustments might not DTRT.
*/
if (sc->sc_dmabuf == 0 &&
sc->sc_playbuf == sc->sc_nbufs - 1) {
/* player is just at the last buf, we're at the
first. Turn on looping, turn off rolling. */
sc->sc_voc[GUS_VOICE_LEFT].voccntl |= GUSMASK_LOOP_ENABLE;
sc->sc_voc[GUS_VOICE_LEFT].volcntl &= ~GUSMASK_VOICE_ROLL;
playstats[playcntr].vaction = 3;
} else {
/* player is at previous buf:
turn on rolling, turn off looping */
sc->sc_voc[GUS_VOICE_LEFT].voccntl &= ~GUSMASK_LOOP_ENABLE;
sc->sc_voc[GUS_VOICE_LEFT].volcntl |= GUSMASK_VOICE_ROLL;
playstats[playcntr].vaction = 4;
}
#ifdef GUSPLAYDEBUG
if (gusstats) {
microtime(&playstats[playcntr].tv);
playstats[playcntr].endaddr = sc->sc_voc[GUS_VOICE_LEFT].end_addr;
playstats[playcntr].voccntl = sc->sc_voc[GUS_VOICE_LEFT].voccntl;
playstats[playcntr].volcntl = sc->sc_voc[GUS_VOICE_LEFT].volcntl;
playstats[playcntr].playbuf = sc->sc_playbuf;
playstats[playcntr].dmabuf = sc->sc_dmabuf;
playstats[playcntr].bufcnt = sc->sc_bufcnt;
playstats[playcntr].curaddr = gus_get_curaddr(sc, GUS_VOICE_LEFT);
playcntr = ++playcntr % NDMARECS;
}
#endif
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, GUS_VOICE_LEFT);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[GUS_VOICE_LEFT].voccntl);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[GUS_VOICE_LEFT].volcntl);
}
}
gus_bufcnt[sc->sc_bufcnt-1]++;
/*
* flip to the next DMA buffer
*/
sc->sc_dmabuf = ++sc->sc_dmabuf % sc->sc_nbufs;
/*
* See comments below about DMA admission control strategy.
* We can call the upper level here if we have an
* idle buffer (not currently playing) to DMA into.
*/
if (sc->sc_dmaoutintr && sc->sc_bufcnt < sc->sc_nbufs) {
/* clean out to prevent double calls */
void (*pfunc) __P((void *)) = sc->sc_dmaoutintr;
void *arg = sc->sc_outarg;
sc->sc_outarg = 0;
sc->sc_dmaoutintr = 0;
(*pfunc)(arg);
}
}
/*
* Service voice interrupts
*/
STATIC int
gus_voice_intr(sc)
struct gus_softc *sc;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
int ignore = 0, voice, rval = 0;
unsigned char intr, status;
/*
* The point of this may not be obvious at first. A voice can
* interrupt more than once; according to the GUS SDK we are supposed
* to ignore multiple interrupts for the same voice.
*/
while(1) {
SELECT_GUS_REG(iot, ioh2, GUSREG_IRQ_STATUS);
intr = bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
if ((intr & (GUSMASK_WIRQ_VOLUME | GUSMASK_WIRQ_VOICE))
== (GUSMASK_WIRQ_VOLUME | GUSMASK_WIRQ_VOICE))
/*
* No more interrupts, time to return
*/
return rval;
if ((intr & GUSMASK_WIRQ_VOICE) == 0) {
/*
* We've got a voice interrupt. Ignore previous
* interrupts by the same voice.
*/
rval = 1;
voice = intr & GUSMASK_WIRQ_VOICEMASK;
if ((1 << voice) & ignore)
break;
ignore |= 1 << voice;
/*
* If the voice is stopped, then force it to stop
* (this stops it from continuously generating IRQs)
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL+0x80);
status = bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
if (status & GUSMASK_VOICE_STOPPED) {
if (voice != GUS_VOICE_LEFT) {
DMAPRINTF(("%s: spurious voice %d stop?\n",
sc->sc_dev.dv_xname, voice));
gus_stop_voice(sc, voice, 0);
continue;
}
gus_stop_voice(sc, voice, 1);
/* also kill right voice */
gus_stop_voice(sc, GUS_VOICE_RIGHT, 0);
sc->sc_bufcnt--; /* it finished a buffer */
if (sc->sc_bufcnt > 0) {
/*
* probably a race to get here: the voice
* stopped while the DMA code was just trying to
* get the next buffer in place.
* Start the voice again.
*/
printf("%s: stopped voice not drained? (%x)\n",
sc->sc_dev.dv_xname, sc->sc_bufcnt);
gus_falsestops++;
sc->sc_playbuf = ++sc->sc_playbuf % sc->sc_nbufs;
gus_start_playing(sc, sc->sc_playbuf);
} else if (sc->sc_bufcnt < 0) {
panic("%s: negative bufcnt in stopped voice",
sc->sc_dev.dv_xname);
} else {
sc->sc_playbuf = -1; /* none are active */
gus_stops++;
}
/* fall through to callback and admit another
buffer.... */
} else if (sc->sc_bufcnt != 0) {
/*
* This should always be taken if the voice
* is not stopped.
*/
gus_continues++;
if (gus_continue_playing(sc, voice)) {
/*
* we shouldn't have continued--active DMA
* is in the way in the ring, for
* some as-yet undebugged reason.
*/
gus_stop_voice(sc, GUS_VOICE_LEFT, 1);
/* also kill right voice */
gus_stop_voice(sc, GUS_VOICE_RIGHT, 0);
sc->sc_playbuf = -1;
gus_stops++;
}
}
/*
* call the upper level to send on down another
* block. We do admission rate control as follows:
*
* When starting up output (in the first N
* blocks), call the upper layer after the DMA is
* complete (see above in gus_dmaout_intr()).
*
* When output is already in progress and we have
* no more GUS buffers to use for DMA, the DMA
* output routines do not call the upper layer.
* Instead, we call the DMA completion routine
* here, after the voice interrupts indicating
* that it's finished with a buffer.
*
* However, don't call anything here if the DMA
* output flag is set, (which shouldn't happen)
* because we'll squish somebody else's DMA if
* that's the case. When DMA is done, it will
* call back if there is a spare buffer.
*/
if (sc->sc_dmaoutintr && !(sc->sc_flags & GUS_LOCKED)) {
if (sc->sc_dmaoutintr == stereo_dmaintr)
printf("gusdmaout botch?\n");
else {
/* clean out to avoid double calls */
void (*pfunc) __P((void *)) = sc->sc_dmaoutintr;
void *arg = sc->sc_outarg;
sc->sc_outarg = 0;
sc->sc_dmaoutintr = 0;
(*pfunc)(arg);
}
}
}
/*
* Ignore other interrupts for now
*/
}
return 0;
}
STATIC void
gus_start_playing(sc, bufno)
struct gus_softc *sc;
int bufno;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
/*
* Start the voices playing, with buffer BUFNO.
*/
/*
* Loop or roll if we have buffers ready.
*/
if (sc->sc_bufcnt == 1) {
sc->sc_voc[GUS_VOICE_LEFT].voccntl &= ~(GUSMASK_LOOP_ENABLE);
sc->sc_voc[GUS_VOICE_LEFT].volcntl &= ~(GUSMASK_VOICE_ROLL);
} else {
if (bufno == sc->sc_nbufs - 1) {
sc->sc_voc[GUS_VOICE_LEFT].voccntl |= GUSMASK_LOOP_ENABLE;
sc->sc_voc[GUS_VOICE_LEFT].volcntl &= ~(GUSMASK_VOICE_ROLL);
} else {
sc->sc_voc[GUS_VOICE_LEFT].voccntl &= ~GUSMASK_LOOP_ENABLE;
sc->sc_voc[GUS_VOICE_LEFT].volcntl |= GUSMASK_VOICE_ROLL;
}
}
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, GUS_VOICE_LEFT);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[GUS_VOICE_LEFT].voccntl);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[GUS_VOICE_LEFT].volcntl);
sc->sc_voc[GUS_VOICE_LEFT].current_addr =
GUS_MEM_OFFSET + sc->sc_chanblocksize * bufno;
sc->sc_voc[GUS_VOICE_LEFT].end_addr =
sc->sc_voc[GUS_VOICE_LEFT].current_addr + sc->sc_chanblocksize - 1;
sc->sc_voc[GUS_VOICE_RIGHT].current_addr =
sc->sc_voc[GUS_VOICE_LEFT].current_addr +
(gus_dostereo && sc->sc_channels == 2 ? GUS_LEFT_RIGHT_OFFSET : 0);
/*
* set up right channel to just loop forever, no interrupts,
* starting at the buffer we just filled. We'll feed it data
* at the same time as left channel.
*/
sc->sc_voc[GUS_VOICE_RIGHT].voccntl |= GUSMASK_LOOP_ENABLE;
sc->sc_voc[GUS_VOICE_RIGHT].volcntl &= ~(GUSMASK_VOICE_ROLL);
#ifdef GUSPLAYDEBUG
if (gusstats) {
microtime(&playstats[playcntr].tv);
playstats[playcntr].curaddr = sc->sc_voc[GUS_VOICE_LEFT].current_addr;
playstats[playcntr].voccntl = sc->sc_voc[GUS_VOICE_LEFT].voccntl;
playstats[playcntr].volcntl = sc->sc_voc[GUS_VOICE_LEFT].volcntl;
playstats[playcntr].endaddr = sc->sc_voc[GUS_VOICE_LEFT].end_addr;
playstats[playcntr].playbuf = bufno;
playstats[playcntr].dmabuf = sc->sc_dmabuf;
playstats[playcntr].bufcnt = sc->sc_bufcnt;
playstats[playcntr].vaction = 5;
playcntr = ++playcntr % NDMARECS;
}
#endif
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, GUS_VOICE_RIGHT);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[GUS_VOICE_RIGHT].voccntl);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[GUS_VOICE_RIGHT].volcntl);
gus_start_voice(sc, GUS_VOICE_RIGHT, 0);
gus_start_voice(sc, GUS_VOICE_LEFT, 1);
if (sc->sc_playbuf == -1)
/* mark start of playing */
sc->sc_playbuf = bufno;
}
STATIC int
gus_continue_playing(sc, voice)
struct gus_softc *sc;
int voice;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
/*
* stop this voice from interrupting while we work.
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[voice].voccntl & ~(GUSMASK_VOICE_IRQ));
/*
* update playbuf to point to the buffer the hardware just started
* playing
*/
sc->sc_playbuf = ++sc->sc_playbuf % sc->sc_nbufs;
/*
* account for buffer just finished
*/
if (--sc->sc_bufcnt == 0) {
DPRINTF(("gus: bufcnt 0 on continuing voice?\n"));
}
if (sc->sc_playbuf == sc->sc_dmabuf && (sc->sc_flags & GUS_LOCKED)) {
printf("%s: continue into active dmabuf?\n", sc->sc_dev.dv_xname);
return 1;
}
/*
* Select the end of the buffer based on the currently active
* buffer, [plus extra contiguous buffers (if ready)].
*/
/*
* set endpoint at end of buffer we just started playing.
*
* The total gets -1 because end addrs are one less than you might
* think (the end_addr is the address of the last sample to play)
*/
gus_set_endaddr(sc, voice, GUS_MEM_OFFSET +
sc->sc_chanblocksize * (sc->sc_playbuf + 1) - 1);
if (sc->sc_bufcnt < 2) {
/*
* Clear out the loop and roll flags, and rotate the currently
* playing buffer. That way, if we don't manage to get more
* data before this buffer finishes, we'll just stop.
*/
sc->sc_voc[voice].voccntl &= ~GUSMASK_LOOP_ENABLE;
sc->sc_voc[voice].volcntl &= ~GUSMASK_VOICE_ROLL;
playstats[playcntr].vaction = 0;
} else {
/*
* We have some buffers to play. set LOOP if we're on the
* last buffer in the ring, otherwise set ROLL.
*/
if (sc->sc_playbuf == sc->sc_nbufs - 1) {
sc->sc_voc[voice].voccntl |= GUSMASK_LOOP_ENABLE;
sc->sc_voc[voice].volcntl &= ~GUSMASK_VOICE_ROLL;
playstats[playcntr].vaction = 1;
} else {
sc->sc_voc[voice].voccntl &= ~GUSMASK_LOOP_ENABLE;
sc->sc_voc[voice].volcntl |= GUSMASK_VOICE_ROLL;
playstats[playcntr].vaction = 2;
}
}
#ifdef GUSPLAYDEBUG
if (gusstats) {
microtime(&playstats[playcntr].tv);
playstats[playcntr].curaddr = gus_get_curaddr(sc, voice);
playstats[playcntr].voccntl = sc->sc_voc[voice].voccntl;
playstats[playcntr].volcntl = sc->sc_voc[voice].volcntl;
playstats[playcntr].endaddr = sc->sc_voc[voice].end_addr;
playstats[playcntr].playbuf = sc->sc_playbuf;
playstats[playcntr].dmabuf = sc->sc_dmabuf;
playstats[playcntr].bufcnt = sc->sc_bufcnt;
playcntr = ++playcntr % NDMARECS;
}
#endif
/*
* (re-)set voice parameters. This will reenable interrupts from this
* voice.
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[voice].voccntl);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[voice].volcntl);
return 0;
}
/*
* Send/receive data into GUS's DRAM using DMA. Called at splgus()
*/
STATIC void
gusdmaout(sc, flags, gusaddr, buffaddr, length)
struct gus_softc *sc;
int flags, length;
u_long gusaddr;
caddr_t buffaddr;
{
unsigned char c = (unsigned char) flags;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
DMAPRINTF(("gusdmaout flags=%x scflags=%x\n", flags, sc->sc_flags));
sc->sc_gusaddr = gusaddr;
/*
* If we're using a 16 bit DMA channel, we have to jump through some
* extra hoops; this includes translating the DRAM address a bit
*/
if (sc->sc_playdrq >= 4) {
c |= GUSMASK_DMA_WIDTH;
gusaddr = convert_to_16bit(gusaddr);
}
/*
* Add flag bits that we always set - fast DMA, enable IRQ
*/
c |= GUSMASK_DMA_ENABLE | GUSMASK_DMA_R0 | GUSMASK_DMA_IRQ;
/*
* Make sure the GUS _isn't_ setup for DMA
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0);
/*
* Tell the PC DMA controller to start doing DMA
*/
sc->sc_dmaoutaddr = (u_char *) buffaddr;
sc->sc_dmaoutcnt = length;
isa_dmastart(sc->sc_ic, sc->sc_playdrq, buffaddr, length,
NULL, DMAMODE_WRITE, BUS_DMA_NOWAIT);
/*
* Set up DMA address - use the upper 16 bits ONLY
*/
sc->sc_flags |= GUS_DMAOUT_ACTIVE;
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_START);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, (int) (gusaddr >> 4));
/*
* Tell the GUS to start doing DMA
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, c);
/*
* XXX If we don't finish in one second, give up...
*/
untimeout(gus_dmaout_timeout, sc); /* flush old one, if there is one */
timeout(gus_dmaout_timeout, sc, hz);
}
/*
* Start a voice playing on the GUS. Called from interrupt handler at
* splgus().
*/
STATIC void
gus_start_voice(sc, voice, intrs)
struct gus_softc *sc;
int voice;
int intrs;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
u_long start;
u_long current;
u_long end;
/*
* Pick all the values for the voice out of the gus_voice struct
* and use those to program the voice
*/
start = sc->sc_voc[voice].start_addr;
current = sc->sc_voc[voice].current_addr;
end = sc->sc_voc[voice].end_addr;
/*
* If we're using 16 bit data, mangle the addresses a bit
*/
if (sc->sc_voc[voice].voccntl & GUSMASK_DATA_SIZE16) {
/* -1 on start so that we get onto sample boundary--other
code always sets it for 1-byte rollover protection */
start = convert_to_16bit(start-1);
current = convert_to_16bit(current);
end = convert_to_16bit(end);
}
/*
* Select the voice we want to use, and program the data addresses
*/
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) voice);
SELECT_GUS_REG(iot, ioh2, GUSREG_START_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_HIGH(start));
SELECT_GUS_REG(iot, ioh2, GUSREG_START_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_LOW(start));
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_HIGH(current));
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_LOW(current));
SELECT_GUS_REG(iot, ioh2, GUSREG_END_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_HIGH(end));
SELECT_GUS_REG(iot, ioh2, GUSREG_END_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_LOW(end));
/*
* (maybe) enable interrupts, disable voice stopping
*/
if (intrs) {
sc->sc_flags |= GUS_PLAYING; /* playing is about to start */
sc->sc_voc[voice].voccntl |= GUSMASK_VOICE_IRQ;
DMAPRINTF(("gus voice playing=%x\n", sc->sc_flags));
} else
sc->sc_voc[voice].voccntl &= ~GUSMASK_VOICE_IRQ;
sc->sc_voc[voice].voccntl &= ~(GUSMASK_VOICE_STOPPED |
GUSMASK_STOP_VOICE);
/*
* Tell the GUS about it. Note that we're doing volume ramping here
* from 0 up to the set volume to help reduce clicks.
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_START_VOLUME);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
SELECT_GUS_REG(iot, ioh2, GUSREG_END_VOLUME);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[voice].current_volume >> 4);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_VOLUME);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x00);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_RATE);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 63);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[voice].voccntl);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
delay(50);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[voice].voccntl);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
}
/*
* Stop a given voice. called at splgus()
*/
STATIC void
gus_stop_voice(sc, voice, intrs_too)
struct gus_softc *sc;
int voice;
int intrs_too;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
sc->sc_voc[voice].voccntl |= GUSMASK_VOICE_STOPPED |
GUSMASK_STOP_VOICE;
if (intrs_too) {
sc->sc_voc[voice].voccntl &= ~(GUSMASK_VOICE_IRQ);
/* no more DMA to do */
sc->sc_flags &= ~GUS_PLAYING;
}
DMAPRINTF(("gusintr voice notplaying=%x\n", sc->sc_flags));
guspoke(iot, ioh2, 0L, 0);
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) voice);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_VOLUME);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[voice].voccntl);
delay(100);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_VOLUME);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[voice].voccntl);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
}
/*
* Set the volume of a given voice. Called at splgus().
*/
STATIC void
gus_set_volume(sc, voice, volume)
struct gus_softc *sc;
int voice, volume;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
unsigned int gusvol;
gusvol = gus_log_volumes[volume < 512 ? volume : 511];
sc->sc_voc[voice].current_volume = gusvol;
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) voice);
SELECT_GUS_REG(iot, ioh2, GUSREG_START_VOLUME);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, (unsigned char) (gusvol >> 4));
SELECT_GUS_REG(iot, ioh2, GUSREG_END_VOLUME);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, (unsigned char) (gusvol >> 4));
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_VOLUME);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, gusvol << 4);
delay(500);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, gusvol << 4);
}
/*
* Interface to the audio layer.
*/
int
gusmax_set_params(addr, setmode, usemode, p, r)
void *addr;
int setmode, usemode;
struct audio_params *p, *r;
{
struct ad1848_isa_softc *ac = addr;
struct gus_softc *sc = ac->sc_ad1848.parent;
int error;
error = ad1848_set_params(ac, setmode, usemode, p, r);
if (error)
return error;
error = gus_set_params(sc, setmode, usemode, p, r);
return error;
}
int
gus_set_params(addr, setmode, usemode, p, r)
void *addr;
int setmode, usemode;
struct audio_params *p, *r;
{
struct gus_softc *sc = addr;
int s;
switch (p->encoding) {
case AUDIO_ENCODING_ULAW:
case AUDIO_ENCODING_ALAW:
case AUDIO_ENCODING_SLINEAR_LE:
case AUDIO_ENCODING_ULINEAR_LE:
case AUDIO_ENCODING_SLINEAR_BE:
case AUDIO_ENCODING_ULINEAR_BE:
break;
default:
return (EINVAL);
}
s = splaudio();
if (p->precision == 8) {
sc->sc_voc[GUS_VOICE_LEFT].voccntl &= ~GUSMASK_DATA_SIZE16;
sc->sc_voc[GUS_VOICE_RIGHT].voccntl &= ~GUSMASK_DATA_SIZE16;
} else {
sc->sc_voc[GUS_VOICE_LEFT].voccntl |= GUSMASK_DATA_SIZE16;
sc->sc_voc[GUS_VOICE_RIGHT].voccntl |= GUSMASK_DATA_SIZE16;
}
sc->sc_encoding = p->encoding;
sc->sc_precision = p->precision;
sc->sc_channels = p->channels;
splx(s);
if (p->sample_rate > gus_max_frequency[sc->sc_voices - GUS_MIN_VOICES])
p->sample_rate = gus_max_frequency[sc->sc_voices - GUS_MIN_VOICES];
if (setmode & AUMODE_RECORD)
sc->sc_irate = p->sample_rate;
if (setmode & AUMODE_PLAY)
sc->sc_orate = p->sample_rate;
switch (p->encoding) {
case AUDIO_ENCODING_ULAW:
p->sw_code = mulaw_to_ulinear8;
r->sw_code = ulinear8_to_mulaw;
break;
case AUDIO_ENCODING_ALAW:
p->sw_code = alaw_to_ulinear8;
r->sw_code = ulinear8_to_alaw;
break;
case AUDIO_ENCODING_ULINEAR_BE:
case AUDIO_ENCODING_SLINEAR_BE:
r->sw_code = p->sw_code = swap_bytes;
break;
}
return 0;
}
/*
* Interface to the audio layer - set the blocksize to the correct number
* of units
*/
int
gusmax_round_blocksize(addr, blocksize)
void * addr;
int blocksize;
{
struct ad1848_isa_softc *ac = addr;
struct gus_softc *sc = ac->sc_ad1848.parent;
/* blocksize = ad1848_round_blocksize(ac, blocksize);*/
return gus_round_blocksize(sc, blocksize);
}
int
gus_round_blocksize(addr, blocksize)
void * addr;
int blocksize;
{
struct gus_softc *sc = addr;
DPRINTF(("gus_round_blocksize called\n"));
if ((sc->sc_encoding == AUDIO_ENCODING_ULAW ||
sc->sc_encoding == AUDIO_ENCODING_ALAW) && blocksize > 32768)
blocksize = 32768;
else if (blocksize > 65536)
blocksize = 65536;
if ((blocksize % GUS_BUFFER_MULTIPLE) != 0)
blocksize = (blocksize / GUS_BUFFER_MULTIPLE + 1) *
GUS_BUFFER_MULTIPLE;
/* set up temporary buffer to hold the deinterleave, if necessary
for stereo output */
if (sc->sc_deintr_buf) {
FREE(sc->sc_deintr_buf, M_DEVBUF);
sc->sc_deintr_buf = NULL;
}
MALLOC(sc->sc_deintr_buf, void *, blocksize>>1, M_DEVBUF, M_WAITOK);
sc->sc_blocksize = blocksize;
/* multi-buffering not quite working yet. */
sc->sc_nbufs = /*GUS_MEM_FOR_BUFFERS / blocksize*/ 2;
gus_set_chan_addrs(sc);
return blocksize;
}
int
gus_get_out_gain(addr)
caddr_t addr;
{
struct gus_softc *sc = (struct gus_softc *) addr;
DPRINTF(("gus_get_out_gain called\n"));
return sc->sc_ogain / 2;
}
STATIC inline void gus_set_voices(sc, voices)
struct gus_softc *sc;
int voices;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
/*
* Select the active number of voices
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_ACTIVE_VOICES);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, (voices-1) | 0xc0);
sc->sc_voices = voices;
}
/*
* Actually set the settings of various values on the card
*/
int
gusmax_commit_settings(addr)
void * addr;
{
struct ad1848_isa_softc *ac = addr;
struct gus_softc *sc = ac->sc_ad1848.parent;
int error;
error = ad1848_commit_settings(ac);
if (error)
return error;
return gus_commit_settings(sc);
}
/*
* Commit the settings. Called at normal IPL.
*/
int
gus_commit_settings(addr)
void * addr;
{
struct gus_softc *sc = addr;
int s;
DPRINTF(("gus_commit_settings called (gain = %d)\n",sc->sc_ogain));
s = splgus();
gus_set_recrate(sc, sc->sc_irate);
gus_set_volume(sc, GUS_VOICE_LEFT, sc->sc_ogain);
gus_set_volume(sc, GUS_VOICE_RIGHT, sc->sc_ogain);
gus_set_samprate(sc, GUS_VOICE_LEFT, sc->sc_orate);
gus_set_samprate(sc, GUS_VOICE_RIGHT, sc->sc_orate);
splx(s);
gus_set_chan_addrs(sc);
return 0;
}
STATIC void
gus_set_chan_addrs(sc)
struct gus_softc *sc;
{
/*
* We use sc_nbufs * blocksize bytes of storage in the on-board GUS
* ram.
* For mono, each of the sc_nbufs buffers is DMA'd to in one chunk,
* and both left & right channels play the same buffer.
*
* For stereo, each channel gets a contiguous half of the memory,
* and each has sc_nbufs buffers of size blocksize/2.
* Stereo data are deinterleaved in main memory before the DMA out
* routines are called to queue the output.
*
* The blocksize per channel is kept in sc_chanblocksize.
*/
if (sc->sc_channels == 2)
sc->sc_chanblocksize = sc->sc_blocksize/2;
else
sc->sc_chanblocksize = sc->sc_blocksize;
sc->sc_voc[GUS_VOICE_LEFT].start_addr = GUS_MEM_OFFSET - 1;
sc->sc_voc[GUS_VOICE_RIGHT].start_addr =
(gus_dostereo && sc->sc_channels == 2 ? GUS_LEFT_RIGHT_OFFSET : 0)
+ GUS_MEM_OFFSET - 1;
sc->sc_voc[GUS_VOICE_RIGHT].current_addr =
sc->sc_voc[GUS_VOICE_RIGHT].start_addr + 1;
sc->sc_voc[GUS_VOICE_RIGHT].end_addr =
sc->sc_voc[GUS_VOICE_RIGHT].start_addr +
sc->sc_nbufs * sc->sc_chanblocksize;
}
/*
* Set the sample rate of the given voice. Called at splgus().
*/
STATIC void
gus_set_samprate(sc, voice, freq)
struct gus_softc *sc;
int voice, freq;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
unsigned int fc;
u_long temp, f = (u_long) freq;
/*
* calculate fc based on the number of active voices;
* we need to use longs to preserve enough bits
*/
temp = (u_long) gus_max_frequency[sc->sc_voices-GUS_MIN_VOICES];
fc = (unsigned int)(((f << 9L) + (temp >> 1L)) / temp);
fc <<= 1;
/*
* Program the voice frequency, and set it in the voice data record
*/
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) voice);
SELECT_GUS_REG(iot, ioh2, GUSREG_FREQ_CONTROL);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, fc);
sc->sc_voc[voice].rate = freq;
}
/*
* Set the sample rate of the recording frequency. Formula is from the GUS
* SDK. Called at splgus().
*/
STATIC void
gus_set_recrate(sc, rate)
struct gus_softc *sc;
u_long rate;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
u_char realrate;
DPRINTF(("gus_set_recrate %lu\n", rate));
#if 0
realrate = 9878400/(16*(rate+2)); /* formula from GUS docs */
#endif
realrate = (9878400 >> 4)/rate - 2; /* formula from code, sigh. */
SELECT_GUS_REG(iot, ioh2, GUSREG_SAMPLE_FREQ);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, realrate);
}
/*
* Interface to the audio layer - turn the output on or off. Note that some
* of these bits are flipped in the register
*/
int
gusmax_speaker_ctl(addr, newstate)
void * addr;
int newstate;
{
struct ad1848_isa_softc *sc = addr;
return gus_speaker_ctl(sc->sc_ad1848.parent, newstate);
}
int
gus_speaker_ctl(addr, newstate)
void * addr;
int newstate;
{
struct gus_softc *sc = (struct gus_softc *) addr;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh1 = sc->sc_ioh1;
/* Line out bit is flipped: 0 enables, 1 disables */
if ((newstate == SPKR_ON) &&
(sc->sc_mixcontrol & GUSMASK_LINE_OUT)) {
sc->sc_mixcontrol &= ~GUSMASK_LINE_OUT;
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, sc->sc_mixcontrol);
}
if ((newstate == SPKR_OFF) &&
(sc->sc_mixcontrol & GUSMASK_LINE_OUT) == 0) {
sc->sc_mixcontrol |= GUSMASK_LINE_OUT;
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, sc->sc_mixcontrol);
}
return 0;
}
STATIC int
gus_linein_ctl(addr, newstate)
void * addr;
int newstate;
{
struct gus_softc *sc = (struct gus_softc *) addr;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh1 = sc->sc_ioh1;
/* Line in bit is flipped: 0 enables, 1 disables */
if ((newstate == SPKR_ON) &&
(sc->sc_mixcontrol & GUSMASK_LINE_IN)) {
sc->sc_mixcontrol &= ~GUSMASK_LINE_IN;
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, sc->sc_mixcontrol);
}
if ((newstate == SPKR_OFF) &&
(sc->sc_mixcontrol & GUSMASK_LINE_IN) == 0) {
sc->sc_mixcontrol |= GUSMASK_LINE_IN;
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, sc->sc_mixcontrol);
}
return 0;
}
STATIC int
gus_mic_ctl(addr, newstate)
void * addr;
int newstate;
{
struct gus_softc *sc = (struct gus_softc *) addr;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh1 = sc->sc_ioh1;
/* Mic bit is normal: 1 enables, 0 disables */
if ((newstate == SPKR_ON) &&
(sc->sc_mixcontrol & GUSMASK_MIC_IN) == 0) {
sc->sc_mixcontrol |= GUSMASK_MIC_IN;
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, sc->sc_mixcontrol);
}
if ((newstate == SPKR_OFF) &&
(sc->sc_mixcontrol & GUSMASK_MIC_IN)) {
sc->sc_mixcontrol &= ~GUSMASK_MIC_IN;
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, sc->sc_mixcontrol);
}
return 0;
}
/*
* Set the end address of a give voice. Called at splgus()
*/
STATIC void
gus_set_endaddr(sc, voice, addr)
struct gus_softc *sc;
int voice;
u_long addr;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
sc->sc_voc[voice].end_addr = addr;
if (sc->sc_voc[voice].voccntl & GUSMASK_DATA_SIZE16)
addr = convert_to_16bit(addr);
SELECT_GUS_REG(iot, ioh2, GUSREG_END_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_HIGH(addr));
SELECT_GUS_REG(iot, ioh2, GUSREG_END_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_LOW(addr));
}
#ifdef GUSPLAYDEBUG
/*
* Set current address. called at splgus()
*/
STATIC void
gus_set_curaddr(sc, voice, addr)
struct gus_softc *sc;
int voice;
u_long addr;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
sc->sc_voc[voice].current_addr = addr;
if (sc->sc_voc[voice].voccntl & GUSMASK_DATA_SIZE16)
addr = convert_to_16bit(addr);
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) voice);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_HIGH(addr));
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, ADDR_LOW(addr));
}
/*
* Get current GUS playback address. Called at splgus().
*/
STATIC u_long
gus_get_curaddr(sc, voice)
struct gus_softc *sc;
int voice;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
u_long addr;
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) voice);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_HIGH|GUSREG_READ);
addr = (bus_space_read_2(iot, ioh2, GUS_DATA_LOW) & 0x1fff) << 7;
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_LOW|GUSREG_READ);
addr |= (bus_space_read_2(iot, ioh2, GUS_DATA_LOW) >> 9L) & 0x7f;
if (sc->sc_voc[voice].voccntl & GUSMASK_DATA_SIZE16)
addr = (addr & 0xc0000) | ((addr & 0x1ffff) << 1); /* undo 16-bit change */
DPRINTF(("gus voice %d curaddr %ld end_addr %ld\n",
voice, addr, sc->sc_voc[voice].end_addr));
/* XXX sanity check the address? */
return(addr);
}
#endif
/*
* Convert an address value to a "16 bit" value - why this is necessary I
* have NO idea
*/
STATIC u_long
convert_to_16bit(address)
u_long address;
{
u_long old_address;
old_address = address;
address >>= 1;
address &= 0x0001ffffL;
address |= (old_address & 0x000c0000L);
return (address);
}
/*
* Write a value into the GUS's DRAM
*/
STATIC void
guspoke(iot, ioh2, address, value)
bus_space_tag_t iot;
bus_space_handle_t ioh2;
long address;
unsigned char value;
{
/*
* Select the DRAM address
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_DRAM_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, (unsigned int) (address & 0xffff));
SELECT_GUS_REG(iot, ioh2, GUSREG_DRAM_ADDR_HIGH);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, (unsigned char) ((address >> 16) & 0xff));
/*
* Actually write the data
*/
bus_space_write_1(iot, ioh2, GUS_DRAM_DATA, value);
}
/*
* Read a value from the GUS's DRAM
*/
STATIC unsigned char
guspeek(iot, ioh2, address)
bus_space_tag_t iot;
bus_space_handle_t ioh2;
u_long address;
{
/*
* Select the DRAM address
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_DRAM_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, (unsigned int) (address & 0xffff));
SELECT_GUS_REG(iot, ioh2, GUSREG_DRAM_ADDR_HIGH);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, (unsigned char) ((address >> 16) & 0xff));
/*
* Read in the data from the board
*/
return (unsigned char) bus_space_read_1(iot, ioh2, GUS_DRAM_DATA);
}
/*
* Reset the Gravis UltraSound card, completely
*/
STATIC void
gusreset(sc, voices)
struct gus_softc *sc;
int voices;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh1 = sc->sc_ioh1;
bus_space_handle_t ioh2 = sc->sc_ioh2;
bus_space_handle_t ioh4 = sc->sc_ioh4;
int i,s;
s = splgus();
/*
* Reset the GF1 chip
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_RESET);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
delay(500);
/*
* Release reset
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_RESET);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, GUSMASK_MASTER_RESET);
delay(500);
/*
* Reset MIDI port as well
*/
bus_space_write_1(iot, ioh4, GUS_MIDI_CONTROL, MIDI_RESET);
delay(500);
bus_space_write_1(iot, ioh4, GUS_MIDI_CONTROL, 0x00);
/*
* Clear interrupts
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
SELECT_GUS_REG(iot, ioh2, GUSREG_TIMER_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
SELECT_GUS_REG(iot, ioh2, GUSREG_SAMPLE_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x00);
gus_set_voices(sc, voices);
bus_space_read_1(iot, ioh1, GUS_IRQ_STATUS);
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_CONTROL);
bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
SELECT_GUS_REG(iot, ioh2, GUSREG_SAMPLE_CONTROL);
bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
SELECT_GUS_REG(iot, ioh2, GUSREG_IRQ_STATUS);
bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
/*
* Reset voice specific information
*/
for(i = 0; i < voices; i++) {
bus_space_write_1(iot, ioh2, GUS_VOICE_SELECT, (unsigned char) i);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOICE_CNTL);
sc->sc_voc[i].voccntl = GUSMASK_VOICE_STOPPED |
GUSMASK_STOP_VOICE;
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[i].voccntl);
sc->sc_voc[i].volcntl = GUSMASK_VOLUME_STOPPED |
GUSMASK_STOP_VOLUME;
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, sc->sc_voc[i].volcntl);
delay(100);
gus_set_samprate(sc, i, 8000);
SELECT_GUS_REG(iot, ioh2, GUSREG_START_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_START_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_END_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_END_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_VOLUME_RATE);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x01);
SELECT_GUS_REG(iot, ioh2, GUSREG_START_VOLUME);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x10);
SELECT_GUS_REG(iot, ioh2, GUSREG_END_VOLUME);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0xe0);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_VOLUME);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_HIGH);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_CUR_ADDR_LOW);
bus_space_write_2(iot, ioh2, GUS_DATA_LOW, 0x0000);
SELECT_GUS_REG(iot, ioh2, GUSREG_PAN_POS);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0x07);
}
/*
* Clear out any pending IRQs
*/
bus_space_read_1(iot, ioh1, GUS_IRQ_STATUS);
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_CONTROL);
bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
SELECT_GUS_REG(iot, ioh2, GUSREG_SAMPLE_CONTROL);
bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
SELECT_GUS_REG(iot, ioh2, GUSREG_IRQ_STATUS);
bus_space_read_1(iot, ioh2, GUS_DATA_HIGH);
SELECT_GUS_REG(iot, ioh2, GUSREG_RESET);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, GUSMASK_MASTER_RESET | GUSMASK_DAC_ENABLE |
GUSMASK_IRQ_ENABLE);
splx(s);
}
STATIC int
gus_init_cs4231(sc)
struct gus_softc *sc;
{
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh1 = sc->sc_ioh1;
int port = sc->sc_iobase;
u_char ctrl;
ctrl = (port & 0xf0) >> 4; /* set port address middle nibble */
/*
* The codec is a bit weird--swapped dma channels.
*/
ctrl |= GUS_MAX_CODEC_ENABLE;
if (sc->sc_playdrq >= 4)
ctrl |= GUS_MAX_RECCHAN16;
if (sc->sc_recdrq >= 4)
ctrl |= GUS_MAX_PLAYCHAN16;
bus_space_write_1(iot, ioh1, GUS_MAX_CTRL, ctrl);
sc->sc_codec.sc_ad1848.sc_iot = sc->sc_iot;
sc->sc_codec.sc_iobase = port+GUS_MAX_CODEC_BASE;
if (ad1848_isa_mapprobe(&sc->sc_codec, sc->sc_codec.sc_iobase) == 0) {
sc->sc_flags &= ~GUS_CODEC_INSTALLED;
return (0);
} else {
struct ad1848_volume vol = {AUDIO_MAX_GAIN, AUDIO_MAX_GAIN};
sc->sc_flags |= GUS_CODEC_INSTALLED;
sc->sc_codec.sc_ad1848.parent = sc;
sc->sc_codec.sc_playdrq = sc->sc_recdrq;
sc->sc_codec.sc_play_maxsize = sc->sc_req_maxsize;
sc->sc_codec.sc_recdrq = sc->sc_playdrq;
sc->sc_codec.sc_rec_maxsize = sc->sc_play_maxsize;
gus_hw_if = gusmax_hw_if;
/* enable line in and mic in the GUS mixer; the codec chip
will do the real mixing for them. */
sc->sc_mixcontrol &= ~GUSMASK_LINE_IN; /* 0 enables. */
sc->sc_mixcontrol |= GUSMASK_MIC_IN; /* 1 enables. */
bus_space_write_1(iot, ioh1, GUS_MIX_CONTROL, sc->sc_mixcontrol);
ad1848_isa_attach(&sc->sc_codec);
/* turn on pre-MUX microphone gain. */
ad1848_set_mic_gain(&sc->sc_codec.sc_ad1848, &vol);
return (1);
}
}
/*
* Return info about the audio device, for the AUDIO_GETINFO ioctl
*/
int
gus_getdev(addr, dev)
void * addr;
struct audio_device *dev;
{
*dev = gus_device;
return 0;
}
/*
* stubs (XXX)
*/
int
gus_set_in_gain(addr, gain, balance)
caddr_t addr;
u_int gain;
u_char balance;
{
DPRINTF(("gus_set_in_gain called\n"));
return 0;
}
int
gus_get_in_gain(addr)
caddr_t addr;
{
DPRINTF(("gus_get_in_gain called\n"));
return 0;
}
int
gusmax_dma_input(addr, buf, size, callback, arg)
void * addr;
void *buf;
int size;
void (*callback) __P((void *));
void *arg;
{
struct ad1848_isa_softc *sc = addr;
return gus_dma_input(sc->sc_ad1848.parent, buf, size, callback, arg);
}
/*
* Start sampling the input source into the requested DMA buffer.
* Called at splgus(), either from top-half or from interrupt handler.
*/
int
gus_dma_input(addr, buf, size, callback, arg)
void * addr;
void *buf;
int size;
void (*callback) __P((void *));
void *arg;
{
struct gus_softc *sc = addr;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
u_char dmac;
DMAPRINTF(("gus_dma_input called\n"));
/*
* Sample SIZE bytes of data from the card, into buffer at BUF.
*/
if (sc->sc_precision == 16)
return EINVAL; /* XXX */
/* set DMA modes */
dmac = GUSMASK_SAMPLE_IRQ|GUSMASK_SAMPLE_START;
if (sc->sc_recdrq >= 4)
dmac |= GUSMASK_SAMPLE_DATA16;
if (sc->sc_encoding == AUDIO_ENCODING_ULAW ||
sc->sc_encoding == AUDIO_ENCODING_ALAW ||
sc->sc_encoding == AUDIO_ENCODING_ULINEAR_LE ||
sc->sc_encoding == AUDIO_ENCODING_ULINEAR_BE)
dmac |= GUSMASK_SAMPLE_INVBIT;
if (sc->sc_channels == 2)
dmac |= GUSMASK_SAMPLE_STEREO;
isa_dmastart(sc->sc_ic, sc->sc_recdrq, buf, size,
NULL, DMAMODE_READ, BUS_DMA_NOWAIT);
DMAPRINTF(("gus_dma_input isa_dmastarted\n"));
sc->sc_flags |= GUS_DMAIN_ACTIVE;
sc->sc_dmainintr = callback;
sc->sc_inarg = arg;
sc->sc_dmaincnt = size;
sc->sc_dmainaddr = buf;
SELECT_GUS_REG(iot, ioh2, GUSREG_SAMPLE_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, dmac); /* Go! */
DMAPRINTF(("gus_dma_input returning\n"));
return 0;
}
STATIC int
gus_dmain_intr(sc)
struct gus_softc *sc;
{
void (*callback) __P((void *));
void *arg;
DMAPRINTF(("gus_dmain_intr called\n"));
if (sc->sc_dmainintr) {
isa_dmadone(sc->sc_ic, sc->sc_recdrq);
callback = sc->sc_dmainintr;
arg = sc->sc_inarg;
sc->sc_dmainaddr = 0;
sc->sc_dmaincnt = 0;
sc->sc_dmainintr = 0;
sc->sc_inarg = 0;
sc->sc_flags &= ~GUS_DMAIN_ACTIVE;
DMAPRINTF(("calling dmain_intr callback %p(%p)\n", callback, arg));
(*callback)(arg);
return 1;
} else {
DMAPRINTF(("gus_dmain_intr false?\n"));
return 0; /* XXX ??? */
}
}
int
gusmax_halt_out_dma(addr)
void * addr;
{
struct ad1848_isa_softc *sc = addr;
return gus_halt_out_dma(sc->sc_ad1848.parent);
}
int
gusmax_halt_in_dma(addr)
void * addr;
{
struct ad1848_isa_softc *sc = addr;
return gus_halt_in_dma(sc->sc_ad1848.parent);
}
/*
* Stop any DMA output. Called at splgus().
*/
int
gus_halt_out_dma(addr)
void * addr;
{
struct gus_softc *sc = addr;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
DMAPRINTF(("gus_halt_out_dma called\n"));
/*
* Make sure the GUS _isn't_ setup for DMA
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_DMA_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH, 0);
untimeout(gus_dmaout_timeout, sc);
isa_dmaabort(sc->sc_ic, sc->sc_playdrq);
sc->sc_flags &= ~(GUS_DMAOUT_ACTIVE|GUS_LOCKED);
sc->sc_dmaoutintr = 0;
sc->sc_outarg = 0;
sc->sc_dmaoutaddr = 0;
sc->sc_dmaoutcnt = 0;
sc->sc_dmabuf = 0;
sc->sc_bufcnt = 0;
sc->sc_playbuf = -1;
/* also stop playing */
gus_stop_voice(sc, GUS_VOICE_LEFT, 1);
gus_stop_voice(sc, GUS_VOICE_RIGHT, 0);
return 0;
}
/*
* Stop any DMA output. Called at splgus().
*/
int
gus_halt_in_dma(addr)
void * addr;
{
struct gus_softc *sc = addr;
bus_space_tag_t iot = sc->sc_iot;
bus_space_handle_t ioh2 = sc->sc_ioh2;
DMAPRINTF(("gus_halt_in_dma called\n"));
/*
* Make sure the GUS _isn't_ setup for DMA
*/
SELECT_GUS_REG(iot, ioh2, GUSREG_SAMPLE_CONTROL);
bus_space_write_1(iot, ioh2, GUS_DATA_HIGH,
bus_space_read_1(iot, ioh2, GUS_DATA_HIGH) & ~(GUSMASK_SAMPLE_START|GUSMASK_SAMPLE_IRQ));
isa_dmaabort(sc->sc_ic, sc->sc_recdrq);
sc->sc_flags &= ~GUS_DMAIN_ACTIVE;
sc->sc_dmainintr = 0;
sc->sc_inarg = 0;
sc->sc_dmainaddr = 0;
sc->sc_dmaincnt = 0;
return 0;
}
static ad1848_devmap_t gusmapping[] = {
{ GUSMAX_DAC_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
{ GUSMAX_LINE_IN_LVL, AD1848_KIND_LVL, AD1848_LINE_CHANNEL },
{ GUSMAX_MONO_LVL, AD1848_KIND_LVL, AD1848_MONO_CHANNEL },
{ GUSMAX_CD_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
{ GUSMAX_MONITOR_LVL, AD1848_KIND_LVL, AD1848_MONITOR_CHANNEL },
{ GUSMAX_OUT_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
{ GUSMAX_DAC_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
{ GUSMAX_LINE_IN_MUTE, AD1848_KIND_MUTE, AD1848_LINE_CHANNEL },
{ GUSMAX_MONO_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL },
{ GUSMAX_CD_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
{ GUSMAX_MONITOR_MUTE, AD1848_KIND_MUTE, AD1848_MONITOR_CHANNEL },
{ GUSMAX_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
{ GUSMAX_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1 }
};
static int nummap = sizeof(gusmapping) / sizeof(gusmapping[0]);
STATIC int
gusmax_mixer_get_port(addr, cp)
void *addr;
mixer_ctrl_t *cp;
{
struct ad1848_isa_softc *ac = addr;
struct gus_softc *sc = ac->sc_ad1848.parent;
struct ad1848_volume vol;
int error = ad1848_mixer_get_port(&ac->sc_ad1848, gusmapping,
nummap, cp);
if (error != ENXIO)
return (error);
error = EINVAL;
switch (cp->dev) {
case GUSMAX_SPEAKER_LVL: /* fake speaker for mute naming */
if (cp->type == AUDIO_MIXER_VALUE) {
if (sc->sc_mixcontrol & GUSMASK_LINE_OUT)
vol.left = vol.right = AUDIO_MAX_GAIN;
else
vol.left = vol.right = AUDIO_MIN_GAIN;
error = 0;
ad1848_from_vol(cp, &vol);
}
break;
case GUSMAX_SPEAKER_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
cp->un.ord = sc->sc_mixcontrol & GUSMASK_LINE_OUT ? 1 : 0;
error = 0;
}
break;
default:
error = ENXIO;
break;
}
return(error);
}
STATIC int
gus_mixer_get_port(addr, cp)
void *addr;
mixer_ctrl_t *cp;
{
struct gus_softc *sc = addr;
struct ics2101_softc *ic = &sc->sc_mixer;
struct ad1848_volume vol;
int error = EINVAL;
DPRINTF(("gus_mixer_get_port: dev=%d type=%d\n", cp->dev, cp->type));
if (!HAS_MIXER(sc) && cp->dev > GUSICS_MASTER_MUTE)
return ENXIO;
switch (cp->dev) {
case GUSICS_MIC_IN_MUTE: /* Microphone */
if (cp->type == AUDIO_MIXER_ENUM) {
if (HAS_MIXER(sc))
cp->un.ord = ic->sc_mute[GUSMIX_CHAN_MIC][ICSMIX_LEFT];
else
cp->un.ord =
sc->sc_mixcontrol & GUSMASK_MIC_IN ? 0 : 1;
error = 0;
}
break;
case GUSICS_LINE_IN_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
if (HAS_MIXER(sc))
cp->un.ord = ic->sc_mute[GUSMIX_CHAN_LINE][ICSMIX_LEFT];
else
cp->un.ord =
sc->sc_mixcontrol & GUSMASK_LINE_IN ? 1 : 0;
error = 0;
}
break;
case GUSICS_MASTER_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
if (HAS_MIXER(sc))
cp->un.ord = ic->sc_mute[GUSMIX_CHAN_MASTER][ICSMIX_LEFT];
else
cp->un.ord =
sc->sc_mixcontrol & GUSMASK_LINE_OUT ? 1 : 0;
error = 0;
}
break;
case GUSICS_DAC_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
cp->un.ord = ic->sc_mute[GUSMIX_CHAN_DAC][ICSMIX_LEFT];
error = 0;
}
break;
case GUSICS_CD_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
cp->un.ord = ic->sc_mute[GUSMIX_CHAN_CD][ICSMIX_LEFT];
error = 0;
}
break;
case GUSICS_MASTER_LVL:
if (cp->type == AUDIO_MIXER_VALUE) {
vol.left = ic->sc_setting[GUSMIX_CHAN_MASTER][ICSMIX_LEFT];
vol.right = ic->sc_setting[GUSMIX_CHAN_MASTER][ICSMIX_RIGHT];
if (ad1848_from_vol(cp, &vol))
error = 0;
}
break;
case GUSICS_MIC_IN_LVL: /* Microphone */
if (cp->type == AUDIO_MIXER_VALUE) {
vol.left = ic->sc_setting[GUSMIX_CHAN_MIC][ICSMIX_LEFT];
vol.right = ic->sc_setting[GUSMIX_CHAN_MIC][ICSMIX_RIGHT];
if (ad1848_from_vol(cp, &vol))
error = 0;
}
break;
case GUSICS_LINE_IN_LVL: /* line in */
if (cp->type == AUDIO_MIXER_VALUE) {
vol.left = ic->sc_setting[GUSMIX_CHAN_LINE][ICSMIX_LEFT];
vol.right = ic->sc_setting[GUSMIX_CHAN_LINE][ICSMIX_RIGHT];
if (ad1848_from_vol(cp, &vol))
error = 0;
}
break;
case GUSICS_CD_LVL:
if (cp->type == AUDIO_MIXER_VALUE) {
vol.left = ic->sc_setting[GUSMIX_CHAN_CD][ICSMIX_LEFT];
vol.right = ic->sc_setting[GUSMIX_CHAN_CD][ICSMIX_RIGHT];
if (ad1848_from_vol(cp, &vol))
error = 0;
}
break;
case GUSICS_DAC_LVL: /* dac out */
if (cp->type == AUDIO_MIXER_VALUE) {
vol.left = ic->sc_setting[GUSMIX_CHAN_DAC][ICSMIX_LEFT];
vol.right = ic->sc_setting[GUSMIX_CHAN_DAC][ICSMIX_RIGHT];
if (ad1848_from_vol(cp, &vol))
error = 0;
}
break;
case GUSICS_RECORD_SOURCE:
if (cp->type == AUDIO_MIXER_ENUM) {
/* Can't set anything else useful, sigh. */
cp->un.ord = 0;
}
break;
default:
return ENXIO;
/*NOTREACHED*/
}
return error;
}
STATIC void
gusics_master_mute(ic, mute)
struct ics2101_softc *ic;
int mute;
{
ics2101_mix_mute(ic, GUSMIX_CHAN_MASTER, ICSMIX_LEFT, mute);
ics2101_mix_mute(ic, GUSMIX_CHAN_MASTER, ICSMIX_RIGHT, mute);
}
STATIC void
gusics_mic_mute(ic, mute)
struct ics2101_softc *ic;
int mute;
{
ics2101_mix_mute(ic, GUSMIX_CHAN_MIC, ICSMIX_LEFT, mute);
ics2101_mix_mute(ic, GUSMIX_CHAN_MIC, ICSMIX_RIGHT, mute);
}
STATIC void
gusics_linein_mute(ic, mute)
struct ics2101_softc *ic;
int mute;
{
ics2101_mix_mute(ic, GUSMIX_CHAN_LINE, ICSMIX_LEFT, mute);
ics2101_mix_mute(ic, GUSMIX_CHAN_LINE, ICSMIX_RIGHT, mute);
}
STATIC void
gusics_cd_mute(ic, mute)
struct ics2101_softc *ic;
int mute;
{
ics2101_mix_mute(ic, GUSMIX_CHAN_CD, ICSMIX_LEFT, mute);
ics2101_mix_mute(ic, GUSMIX_CHAN_CD, ICSMIX_RIGHT, mute);
}
STATIC void
gusics_dac_mute(ic, mute)
struct ics2101_softc *ic;
int mute;
{
ics2101_mix_mute(ic, GUSMIX_CHAN_DAC, ICSMIX_LEFT, mute);
ics2101_mix_mute(ic, GUSMIX_CHAN_DAC, ICSMIX_RIGHT, mute);
}
STATIC int
gusmax_mixer_set_port(addr, cp)
void *addr;
mixer_ctrl_t *cp;
{
struct ad1848_isa_softc *ac = addr;
struct gus_softc *sc = ac->sc_ad1848.parent;
struct ad1848_volume vol;
int error = ad1848_mixer_set_port(&ac->sc_ad1848, gusmapping,
nummap, cp);
if (error != ENXIO)
return (error);
DPRINTF(("gusmax_mixer_set_port: dev=%d type=%d\n", cp->dev, cp->type));
switch (cp->dev) {
case GUSMAX_SPEAKER_LVL:
if (cp->type == AUDIO_MIXER_VALUE &&
cp->un.value.num_channels == 1) {
if (ad1848_to_vol(cp, &vol)) {
gus_speaker_ctl(sc, vol.left > AUDIO_MIN_GAIN ?
SPKR_ON : SPKR_OFF);
error = 0;
}
}
break;
case GUSMAX_SPEAKER_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
gus_speaker_ctl(sc, cp->un.ord ? SPKR_OFF : SPKR_ON);
error = 0;
}
break;
default:
return ENXIO;
/*NOTREACHED*/
}
return error;
}
STATIC int
gus_mixer_set_port(addr, cp)
void *addr;
mixer_ctrl_t *cp;
{
struct gus_softc *sc = addr;
struct ics2101_softc *ic = &sc->sc_mixer;
struct ad1848_volume vol;
int error = EINVAL;
DPRINTF(("gus_mixer_set_port: dev=%d type=%d\n", cp->dev, cp->type));
if (!HAS_MIXER(sc) && cp->dev > GUSICS_MASTER_MUTE)
return ENXIO;
switch (cp->dev) {
case GUSICS_MIC_IN_MUTE: /* Microphone */
if (cp->type == AUDIO_MIXER_ENUM) {
DPRINTF(("mic mute %d\n", cp->un.ord));
if (HAS_MIXER(sc)) {
gusics_mic_mute(ic, cp->un.ord);
}
gus_mic_ctl(sc, cp->un.ord ? SPKR_OFF : SPKR_ON);
error = 0;
}
break;
case GUSICS_LINE_IN_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
DPRINTF(("linein mute %d\n", cp->un.ord));
if (HAS_MIXER(sc)) {
gusics_linein_mute(ic, cp->un.ord);
}
gus_linein_ctl(sc, cp->un.ord ? SPKR_OFF : SPKR_ON);
error = 0;
}
break;
case GUSICS_MASTER_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
DPRINTF(("master mute %d\n", cp->un.ord));
if (HAS_MIXER(sc)) {
gusics_master_mute(ic, cp->un.ord);
}
gus_speaker_ctl(sc, cp->un.ord ? SPKR_OFF : SPKR_ON);
error = 0;
}
break;
case GUSICS_DAC_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
gusics_dac_mute(ic, cp->un.ord);
error = 0;
}
break;
case GUSICS_CD_MUTE:
if (cp->type == AUDIO_MIXER_ENUM) {
gusics_cd_mute(ic, cp->un.ord);
error = 0;
}
break;
case GUSICS_MASTER_LVL:
if (cp->type == AUDIO_MIXER_VALUE) {
if (ad1848_to_vol(cp, &vol)) {
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_MASTER,
ICSMIX_LEFT,
vol.left);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_MASTER,
ICSMIX_RIGHT,
vol.right);
error = 0;
}
}
break;
case GUSICS_MIC_IN_LVL: /* Microphone */
if (cp->type == AUDIO_MIXER_VALUE) {
if (ad1848_to_vol(cp, &vol)) {
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_MIC,
ICSMIX_LEFT,
vol.left);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_MIC,
ICSMIX_RIGHT,
vol.right);
error = 0;
}
}
break;
case GUSICS_LINE_IN_LVL: /* line in */
if (cp->type == AUDIO_MIXER_VALUE) {
if (ad1848_to_vol(cp, &vol)) {
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_LINE,
ICSMIX_LEFT,
vol.left);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_LINE,
ICSMIX_RIGHT,
vol.right);
error = 0;
}
}
break;
case GUSICS_CD_LVL:
if (cp->type == AUDIO_MIXER_VALUE) {
if (ad1848_to_vol(cp, &vol)) {
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_CD,
ICSMIX_LEFT,
vol.left);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_CD,
ICSMIX_RIGHT,
vol.right);
error = 0;
}
}
break;
case GUSICS_DAC_LVL: /* dac out */
if (cp->type == AUDIO_MIXER_VALUE) {
if (ad1848_to_vol(cp, &vol)) {
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_DAC,
ICSMIX_LEFT,
vol.left);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_DAC,
ICSMIX_RIGHT,
vol.right);
error = 0;
}
}
break;
case GUSICS_RECORD_SOURCE:
if (cp->type == AUDIO_MIXER_ENUM && cp->un.ord == 0) {
/* Can't set anything else useful, sigh. */
error = 0;
}
break;
default:
return ENXIO;
/*NOTREACHED*/
}
return error;
}
STATIC int
gus_get_props(addr)
void *addr;
{
struct gus_softc *sc = addr;
return (AUDIO_PROP_MMAP |
(sc->sc_recdrq == sc->sc_playdrq ? 0 : AUDIO_PROP_FULLDUPLEX));
}
STATIC int
gusmax_get_props(addr)
void *addr;
{
struct ad1848_isa_softc *ac = addr;
return gus_get_props(ac->sc_ad1848.parent);
}
STATIC int
gusmax_mixer_query_devinfo(addr, dip)
void *addr;
mixer_devinfo_t *dip;
{
DPRINTF(("gusmax_query_devinfo: index=%d\n", dip->index));
switch(dip->index) {
#if 0
case GUSMAX_MIC_IN_LVL: /* Microphone */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSMAX_MIC_IN_MUTE;
strcpy(dip->label.name, AudioNmicrophone);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
#endif
case GUSMAX_MONO_LVL: /* mono/microphone mixer */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSMAX_MONO_MUTE;
strcpy(dip->label.name, AudioNmicrophone);
dip->un.v.num_channels = 1;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSMAX_DAC_LVL: /* dacout */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSMAX_DAC_MUTE;
strcpy(dip->label.name, AudioNdac);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSMAX_LINE_IN_LVL: /* line */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSMAX_LINE_IN_MUTE;
strcpy(dip->label.name, AudioNline);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSMAX_CD_LVL: /* cd */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSMAX_CD_MUTE;
strcpy(dip->label.name, AudioNcd);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSMAX_MONITOR_LVL: /* monitor level */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_MONITOR_CLASS;
dip->next = GUSMAX_MONITOR_MUTE;
dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioNmonitor);
dip->un.v.num_channels = 1;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSMAX_OUT_LVL: /* cs4231 output volume: not useful? */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_MONITOR_CLASS;
dip->prev = dip->next = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioNoutput);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSMAX_SPEAKER_LVL: /* fake speaker volume */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_MONITOR_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSMAX_SPEAKER_MUTE;
strcpy(dip->label.name, AudioNmaster);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSMAX_LINE_IN_MUTE:
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSMAX_LINE_IN_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSMAX_DAC_MUTE:
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSMAX_DAC_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSMAX_CD_MUTE:
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSMAX_CD_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSMAX_MONO_MUTE:
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSMAX_MONO_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSMAX_MONITOR_MUTE:
dip->mixer_class = GUSMAX_OUTPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSMAX_MONITOR_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSMAX_SPEAKER_MUTE:
dip->mixer_class = GUSMAX_OUTPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSMAX_SPEAKER_LVL;
dip->next = AUDIO_MIXER_LAST;
mute:
strcpy(dip->label.name, AudioNmute);
dip->un.e.num_mem = 2;
strcpy(dip->un.e.member[0].label.name, AudioNoff);
dip->un.e.member[0].ord = 0;
strcpy(dip->un.e.member[1].label.name, AudioNon);
dip->un.e.member[1].ord = 1;
break;
case GUSMAX_REC_LVL: /* record level */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSMAX_RECORD_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSMAX_RECORD_SOURCE;
strcpy(dip->label.name, AudioNrecord);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSMAX_RECORD_SOURCE:
dip->mixer_class = GUSMAX_RECORD_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSMAX_REC_LVL;
dip->next = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioNsource);
dip->un.e.num_mem = 4;
strcpy(dip->un.e.member[0].label.name, AudioNoutput);
dip->un.e.member[0].ord = DAC_IN_PORT;
strcpy(dip->un.e.member[1].label.name, AudioNmicrophone);
dip->un.e.member[1].ord = MIC_IN_PORT;
strcpy(dip->un.e.member[2].label.name, AudioNdac);
dip->un.e.member[2].ord = AUX1_IN_PORT;
strcpy(dip->un.e.member[3].label.name, AudioNline);
dip->un.e.member[3].ord = LINE_IN_PORT;
break;
case GUSMAX_INPUT_CLASS: /* input class descriptor */
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = GUSMAX_INPUT_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCinputs);
break;
case GUSMAX_OUTPUT_CLASS: /* output class descriptor */
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = GUSMAX_OUTPUT_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCoutputs);
break;
case GUSMAX_MONITOR_CLASS: /* monitor class descriptor */
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = GUSMAX_MONITOR_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCmonitor);
break;
case GUSMAX_RECORD_CLASS: /* record source class */
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = GUSMAX_RECORD_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCrecord);
break;
default:
return ENXIO;
/*NOTREACHED*/
}
DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
return 0;
}
STATIC int
gus_mixer_query_devinfo(addr, dip)
void *addr;
mixer_devinfo_t *dip;
{
struct gus_softc *sc = addr;
DPRINTF(("gusmax_query_devinfo: index=%d\n", dip->index));
if (!HAS_MIXER(sc) && dip->index > GUSICS_MASTER_MUTE)
return ENXIO;
switch(dip->index) {
case GUSICS_MIC_IN_LVL: /* Microphone */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSICS_MIC_IN_MUTE;
strcpy(dip->label.name, AudioNmicrophone);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSICS_LINE_IN_LVL: /* line */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSICS_LINE_IN_MUTE;
strcpy(dip->label.name, AudioNline);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSICS_CD_LVL: /* cd */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSICS_CD_MUTE;
strcpy(dip->label.name, AudioNcd);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSICS_DAC_LVL: /* dacout */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSICS_DAC_MUTE;
strcpy(dip->label.name, AudioNdac);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSICS_MASTER_LVL: /* master output */
dip->type = AUDIO_MIXER_VALUE;
dip->mixer_class = GUSICS_OUTPUT_CLASS;
dip->prev = AUDIO_MIXER_LAST;
dip->next = GUSICS_MASTER_MUTE;
strcpy(dip->label.name, AudioNmaster);
dip->un.v.num_channels = 2;
strcpy(dip->un.v.units.name, AudioNvolume);
break;
case GUSICS_LINE_IN_MUTE:
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSICS_LINE_IN_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSICS_DAC_MUTE:
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSICS_DAC_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSICS_CD_MUTE:
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSICS_CD_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSICS_MIC_IN_MUTE:
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSICS_MIC_IN_LVL;
dip->next = AUDIO_MIXER_LAST;
goto mute;
case GUSICS_MASTER_MUTE:
dip->mixer_class = GUSICS_OUTPUT_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = GUSICS_MASTER_LVL;
dip->next = AUDIO_MIXER_LAST;
mute:
strcpy(dip->label.name, AudioNmute);
dip->un.e.num_mem = 2;
strcpy(dip->un.e.member[0].label.name, AudioNoff);
dip->un.e.member[0].ord = 0;
strcpy(dip->un.e.member[1].label.name, AudioNon);
dip->un.e.member[1].ord = 1;
break;
case GUSICS_RECORD_SOURCE:
dip->mixer_class = GUSICS_RECORD_CLASS;
dip->type = AUDIO_MIXER_ENUM;
dip->prev = dip->next = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioNsource);
dip->un.e.num_mem = 1;
strcpy(dip->un.e.member[0].label.name, AudioNoutput);
dip->un.e.member[0].ord = GUSICS_MASTER_LVL;
break;
case GUSICS_INPUT_CLASS:
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = GUSICS_INPUT_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCinputs);
break;
case GUSICS_OUTPUT_CLASS:
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = GUSICS_OUTPUT_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCoutputs);
break;
case GUSICS_RECORD_CLASS:
dip->type = AUDIO_MIXER_CLASS;
dip->mixer_class = GUSICS_RECORD_CLASS;
dip->next = dip->prev = AUDIO_MIXER_LAST;
strcpy(dip->label.name, AudioCrecord);
break;
default:
return ENXIO;
/*NOTREACHED*/
}
DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
return 0;
}
STATIC int
gus_query_encoding(addr, fp)
void *addr;
struct audio_encoding *fp;
{
switch (fp->index) {
case 0:
strcpy(fp->name, AudioEmulaw);
fp->encoding = AUDIO_ENCODING_ULAW;
fp->precision = 8;
fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
break;
case 1:
strcpy(fp->name, AudioEslinear);
fp->encoding = AUDIO_ENCODING_SLINEAR;
fp->precision = 8;
fp->flags = 0;
break;
case 2:
strcpy(fp->name, AudioEslinear_le);
fp->encoding = AUDIO_ENCODING_SLINEAR_LE;
fp->precision = 16;
fp->flags = 0;
break;
case 3:
strcpy(fp->name, AudioEulinear);
fp->encoding = AUDIO_ENCODING_ULINEAR;
fp->precision = 8;
fp->flags = 0;
break;
case 4:
strcpy(fp->name, AudioEulinear_le);
fp->encoding = AUDIO_ENCODING_ULINEAR_LE;
fp->precision = 16;
fp->flags = 0;
break;
case 5:
strcpy(fp->name, AudioEslinear_be);
fp->encoding = AUDIO_ENCODING_SLINEAR_BE;
fp->precision = 16;
fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
break;
case 6:
strcpy(fp->name, AudioEulinear_be);
fp->encoding = AUDIO_ENCODING_ULINEAR_BE;
fp->precision = 16;
fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
break;
case 7:
strcpy(fp->name, AudioEalaw);
fp->encoding = AUDIO_ENCODING_ALAW;
fp->precision = 8;
fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
break;
default:
return(EINVAL);
/*NOTREACHED*/
}
return (0);
}
/*
* Setup the ICS mixer in "transparent" mode: reset everything to a sensible
* level. Levels as suggested by GUS SDK code.
*/
STATIC void
gus_init_ics2101(sc)
struct gus_softc *sc;
{
struct ics2101_softc *ic = &sc->sc_mixer;
sc->sc_mixer.sc_iot = sc->sc_iot;
sc->sc_mixer.sc_selio = GUS_MIXER_SELECT;
sc->sc_mixer.sc_selio_ioh = sc->sc_ioh3;
sc->sc_mixer.sc_dataio = GUS_MIXER_DATA;
sc->sc_mixer.sc_dataio_ioh = sc->sc_ioh2;
sc->sc_mixer.sc_flags = (sc->sc_revision == 5) ? ICS_FLIP : 0;
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_MIC,
ICSMIX_LEFT,
ICSMIX_MIN_ATTN);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_MIC,
ICSMIX_RIGHT,
ICSMIX_MIN_ATTN);
/*
* Start with microphone muted by the mixer...
*/
gusics_mic_mute(ic, 1);
/* ... and enabled by the GUS master mix control */
gus_mic_ctl(sc, SPKR_ON);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_LINE,
ICSMIX_LEFT,
ICSMIX_MIN_ATTN);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_LINE,
ICSMIX_RIGHT,
ICSMIX_MIN_ATTN);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_CD,
ICSMIX_LEFT,
ICSMIX_MIN_ATTN);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_CD,
ICSMIX_RIGHT,
ICSMIX_MIN_ATTN);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_DAC,
ICSMIX_LEFT,
ICSMIX_MIN_ATTN);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_DAC,
ICSMIX_RIGHT,
ICSMIX_MIN_ATTN);
ics2101_mix_attenuate(ic,
ICSMIX_CHAN_4,
ICSMIX_LEFT,
ICSMIX_MAX_ATTN);
ics2101_mix_attenuate(ic,
ICSMIX_CHAN_4,
ICSMIX_RIGHT,
ICSMIX_MAX_ATTN);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_MASTER,
ICSMIX_LEFT,
ICSMIX_MIN_ATTN);
ics2101_mix_attenuate(ic,
GUSMIX_CHAN_MASTER,
ICSMIX_RIGHT,
ICSMIX_MIN_ATTN);
/* unmute other stuff: */
gusics_cd_mute(ic, 0);
gusics_dac_mute(ic, 0);
gusics_linein_mute(ic, 0);
return;
}
#endif /* NGUS */
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