516 lines
14 KiB
C
516 lines
14 KiB
C
/* $NetBSD: pas.c,v 1.46 1999/02/18 07:08:36 mycroft Exp $ */
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/*
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* Copyright (c) 1991-1993 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Computer Systems
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* Engineering Group at Lawrence Berkeley Laboratory.
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* 4. Neither the name of the University nor of the Laboratory may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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* jfw 7/13/97 - The soundblaster code requires the generic bus-space
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* structures to be set up properly. Rather than go to the effort of making
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* code for a dead line fully generic, properly set up the SB structures and
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* leave the rest x86/ISA/default-configuration specific. If you have a
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* REAL computer, go buy a REAL sound card.
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*/
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/*
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* Todo:
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* - look at other PAS drivers (for PAS native suport)
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* - use common sb.c once emulation is setup
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*/
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/*
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* jfw 6/21/98 - WARNING: the PAS native IO ports are scattered all around
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* IO port space (0x0388, 0x738B, 0xBF88, 0x2789, ...) which will make proper
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* reservation a real pain, so I'm not going to do it (while fixing the
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* current reservation code to "work"). As a sanity check, I reserve the
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* 0x0388 base address, but you probably shouldn't even think of trying this
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* driver unless you're certain you have the hardware installed and it doesn't
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* conflict with other hardware...
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/syslog.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <machine/cpu.h>
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#include <machine/intr.h>
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#include <machine/bus.h>
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#include <machine/pio.h>
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#include <sys/audioio.h>
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#include <dev/audio_if.h>
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#include <dev/midi_if.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isadmavar.h>
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#include <dev/isa/sbdspvar.h>
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#include <dev/isa/sbreg.h>
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#define DEFINE_TRANSLATIONS
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#include <dev/isa/pasreg.h>
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#ifdef AUDIO_DEBUG
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#define DPRINTF(x) if (pasdebug) printf x
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int pasdebug = 0;
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#else
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#define DPRINTF(x)
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#endif
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/*
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* Software state, per SoundBlaster card.
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* The soundblaster has multiple functionality, which we must demultiplex.
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* One approach is to have one major device number for the soundblaster card,
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* and use different minor numbers to indicate which hardware function
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* we want. This would make for one large driver. Instead our approach
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* is to partition the design into a set of drivers that share an underlying
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* piece of hardware. Most things are hard to share, for example, the audio
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* and midi ports. For audio, we might want to mix two processes' signals,
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* and for midi we might want to merge streams (this is hard due to
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* running status). Moreover, we should be able to re-use the high-level
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* modules with other kinds of hardware. In this module, we only handle the
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* most basic communications with the sb card.
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*/
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struct pas_softc {
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struct sbdsp_softc sc_sbdsp; /* base device, &c. */
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bus_space_handle_t pas_port_handle; /* the pas-specific port */
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int model;
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int rev;
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};
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int pas_getdev __P((void *, struct audio_device *));
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void pasconf __P((int, int, int, int));
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/*
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* Define our interface to the higher level audio driver.
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*/
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struct audio_hw_if pas_hw_if = {
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sbdsp_open,
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sbdsp_close,
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0,
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sbdsp_query_encoding,
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sbdsp_set_params,
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sbdsp_round_blocksize,
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0,
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0,
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0,
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0,
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0,
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sbdsp_halt_output,
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sbdsp_halt_input,
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sbdsp_speaker_ctl,
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pas_getdev,
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0,
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sbdsp_mixer_set_port,
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sbdsp_mixer_get_port,
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sbdsp_mixer_query_devinfo,
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sb_malloc,
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sb_free,
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sb_round_buffersize,
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sb_mappage,
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sbdsp_get_props,
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sbdsp_trigger_output,
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sbdsp_trigger_input,
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};
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/* The Address Translation code is used to convert I/O register addresses to
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be relative to the given base -register */
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static char *pasnames[] = {
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"",
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"Plus",
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"CDPC",
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"16",
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"16Basic"
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};
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static struct audio_device pas_device = {
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"PAS,??",
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"",
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"pas"
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};
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/*XXX assume default I/O base address */
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#define pasread(p) inb(p)
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#define paswrite(d, p) outb(p, d)
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void
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pasconf(model, sbbase, sbirq, sbdrq)
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int model;
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int sbbase;
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int sbirq;
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int sbdrq;
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{
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paswrite(0x00, INTERRUPT_MASK);
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/* Local timer control register */
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paswrite(0x36, SAMPLE_COUNTER_CONTROL);
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/* Sample rate timer (16 bit) */
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paswrite(0x36, SAMPLE_RATE_TIMER);
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paswrite(0, SAMPLE_RATE_TIMER);
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/* Local timer control register */
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paswrite(0x74, SAMPLE_COUNTER_CONTROL);
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/* Sample count register (16 bit) */
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paswrite(0x74, SAMPLE_BUFFER_COUNTER);
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paswrite(0, SAMPLE_BUFFER_COUNTER);
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paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE |
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P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R,
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PCM_CONTROL);
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paswrite(S_M_PCM_RESET | S_M_FM_RESET |
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S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER);
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/*XXX*/
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paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1);
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paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2);
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paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3);
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#ifdef BROKEN_BUS_CLOCK
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paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND |
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S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1);
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#else
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paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND,
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SYSTEM_CONFIGURATION_1);
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#endif
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/*XXX*/
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paswrite(0, SYSTEM_CONFIGURATION_2);
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paswrite(0, SYSTEM_CONFIGURATION_3);
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/* Sets mute off and selects filter rate of 17.897 kHz */
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paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY);
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if (model == PAS_16 || model == PAS_16BASIC)
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paswrite(8, PRESCALE_DIVIDER);
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else
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paswrite(0, PRESCALE_DIVIDER);
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paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER);
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paswrite(5, PARALLEL_MIXER);
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/*
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* Setup SoundBlaster emulation.
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*/
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paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS);
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paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq],
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EMULATION_CONFIGURATION);
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paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE);
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/*
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* Set mid-range levels.
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*/
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paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER);
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paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER);
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paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER);
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paswrite(50, PARALLEL_MIXER);
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paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER);
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paswrite(50, PARALLEL_MIXER);
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paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER);
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paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER);
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paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER);
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paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER);
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}
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int pasprobe __P((struct device *, struct cfdata *, void *));
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void pasattach __P((struct device *, struct device *, void *));
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static int pasfind __P((struct device *, struct pas_softc *,
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struct isa_attach_args *, int));
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/* argument to pasfind */
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#define PASPROBE 1
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#define PASATTACH 0
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struct cfattach pas_ca = {
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sizeof(struct pas_softc), pasprobe, pasattach
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};
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/*
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* Probe / attach routines.
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*/
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int
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pasprobe(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct pas_softc probesc, *sc = &probesc;
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bzero(sc, sizeof *sc);
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sc->sc_sbdsp.sc_dev.dv_cfdata = match;
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strcpy(sc->sc_sbdsp.sc_dev.dv_xname, "pas");
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return pasfind(parent, sc, aux, PASPROBE);
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}
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/*
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* Probe for the soundblaster hardware.
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*/
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static int
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pasfind(parent, sc, ia, probing)
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struct device *parent;
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struct pas_softc *sc;
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struct isa_attach_args *ia;
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int probing;
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{
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int iobase;
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u_char id, t;
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int rc = 0; /* failure */
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/* ensure we can set this up as a sound blaster */
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if (!SB_BASE_VALID(ia->ia_iobase)) {
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printf("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase);
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return 0;
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}
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if (bus_space_map(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1, 0,
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&sc->pas_port_handle)) {
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printf("pas: can't map base register %x in probe\n",
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PAS_DEFAULT_BASE);
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return 0;
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}
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/*
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* WARNING: Setting an option like W:1 or so that disables
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* warm boot reset of the card will screw up this detect code
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* something fierce. Adding code to handle this means possibly
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* interfering with other cards on the bus if you have something
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* on base port 0x388. SO be forewarned.
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*/
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/* Talk to first board */
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outb(MASTER_DECODE, 0xbc);
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/* Set base address */
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#if 0
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/* XXX Need to setup pseudo device */
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/* XXX What are good io addrs ? */
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if (iobase != PAS_DEFAULT_BASE) {
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printf("pas: configured iobase %d invalid\n", iobase);
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return 0;
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}
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#else
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/* Start out talking to native PAS */
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iobase = PAS_DEFAULT_BASE;
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#endif
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outb(MASTER_DECODE, iobase >> 2);
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/* One wait-state */
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paswrite(1, WAIT_STATE);
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id = pasread(INTERRUPT_MASK);
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if (id == 0xff || id == 0xfe) {
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/* sanity */
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DPRINTF(("pas: bogus card id\n"));
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goto unmap1;
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}
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/*
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* We probably have a PAS-series board, now check for a
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* PAS2-series board by trying to change the board revision
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* bits. PAS2-series hardware won't let you do this because
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* the bits are read-only.
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*/
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t = id ^ 0xe0;
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paswrite(t, INTERRUPT_MASK);
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t = inb(INTERRUPT_MASK);
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paswrite(id, INTERRUPT_MASK);
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if (t != id) {
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/* Not a PAS2 */
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printf("pas: detected card but PAS2 test failed\n");
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goto unmap1;
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}
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/*XXX*/
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t = pasread(OPERATION_MODE_1) & 0xf;
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sc->model = O_M_1_to_card[t];
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if (sc->model != 0) {
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sc->rev = pasread(BOARD_REV_ID);
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}
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else {
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DPRINTF(("pas: bogus model id\n"));
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goto unmap1;
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}
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if (sc->model >= 0) {
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if (ia->ia_irq == IRQUNK) {
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printf("pas: sb emulation requires known irq\n");
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goto unmap1;
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}
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pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1);
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} else {
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DPRINTF(("pas: could not probe pas\n"));
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goto unmap1;
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}
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/* Now a SoundBlaster, so set up proper bus-space hooks
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* appropriately
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*/
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sc->sc_sbdsp.sc_iobase = ia->ia_iobase;
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sc->sc_sbdsp.sc_iot = ia->ia_iot;
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/* Map i/o space [we map 24 ports which is the max of the sb and pro */
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if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0,
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&sc->sc_sbdsp.sc_ioh)) {
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printf("pas: can't map i/o space 0x%x/%d in probe\n",
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ia->ia_iobase, SBP_NPORT);
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goto unmap;
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}
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if (sbdsp_reset(&sc->sc_sbdsp) < 0) {
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DPRINTF(("pas: couldn't reset card\n"));
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goto unmap;
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}
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/*
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* Cannot auto-discover DMA channel.
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*/
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if (!SB_DRQ_VALID(ia->ia_drq)) {
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printf("pas: configured dma chan %d invalid\n", ia->ia_drq);
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goto unmap;
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}
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#ifdef NEWCONFIG
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/*
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* If the IRQ wasn't compiled in, auto-detect it.
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*/
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if (ia->ia_irq == IRQUNK) {
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ia->ia_irq = isa_discoverintr(pasforceintr, aux);
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sbdsp_reset(&sc->sc_sbdsp);
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if (!SB_IRQ_VALID(ia->ia_irq)) {
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printf("pas: couldn't auto-detect interrupt");
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goto unmap;
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}
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} else
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#endif
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if (!SB_IRQ_VALID(ia->ia_irq)) {
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printf("pas: configured irq chan %d invalid\n", ia->ia_irq);
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goto unmap;
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}
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sc->sc_sbdsp.sc_irq = ia->ia_irq;
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sc->sc_sbdsp.sc_drq8 = ia->ia_drq;
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sc->sc_sbdsp.sc_drq16 = -1; /* XXX */
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if (sbdsp_probe(&sc->sc_sbdsp) == 0) {
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DPRINTF(("pas: sbdsp probe failed\n"));
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goto unmap;
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}
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rc = 1;
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ia->ia_iosize = SB_NPORT;
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unmap:
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if (rc == 0 || probing)
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bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT);
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unmap1:
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if (rc == 0 || probing)
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bus_space_unmap(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1);
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return rc;
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}
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#ifdef NEWCONFIG
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void
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pasforceintr(aux)
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void *aux;
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{
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static char dmabuf;
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struct isa_attach_args *ia = aux;
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int iobase = ia->ia_iobase;
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/*
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* Set up a DMA read of one byte.
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* XXX Note that at this point we haven't called
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* at_setup_dmachan(). This is okay because it just
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* allocates a buffer in case it needs to make a copy,
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* and it won't need to make a copy for a 1 byte buffer.
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* (I think that calling at_setup_dmachan() should be optional;
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* if you don't call it, it will be called the first time
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* it is needed (and you pay the latency). Also, you might
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* never need the buffer anyway.)
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*/
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at_dma(DMAMODE_READ, &dmabuf, 1, ia->ia_drq);
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if (pas_wdsp(iobase, SB_DSP_RDMA) == 0) {
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(void)pas_wdsp(iobase, 0);
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(void)pas_wdsp(iobase, 0);
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}
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}
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#endif
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/*
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* Attach hardware to driver, attach hardware driver to audio
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* pseudo-device driver .
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*/
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void
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pasattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct pas_softc *sc = (struct pas_softc *)self;
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struct isa_attach_args *ia = (struct isa_attach_args *)aux;
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int iobase = ia->ia_iobase;
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if (!pasfind(parent, sc, ia, PASATTACH)) {
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printf("%s: pasfind failed\n", sc->sc_sbdsp.sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
|
|
sc->sc_sbdsp.sc_ic = ia->ia_ic;
|
|
sc->sc_sbdsp.sc_iobase = iobase;
|
|
sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq,
|
|
IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp);
|
|
|
|
printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model],
|
|
sc->rev);
|
|
|
|
sbdsp_attach(&sc->sc_sbdsp);
|
|
|
|
sprintf(pas_device.name, "pas,%s", pasnames[sc->model]);
|
|
sprintf(pas_device.version, "%d", sc->rev);
|
|
|
|
audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, &sc->sc_sbdsp.sc_dev);
|
|
}
|
|
|
|
int
|
|
pas_getdev(addr, retp)
|
|
void *addr;
|
|
struct audio_device *retp;
|
|
{
|
|
*retp = pas_device;
|
|
return 0;
|
|
}
|