NetBSD-5.0.2/sys/dev/isa/pas.c
/* $NetBSD: pas.c,v 1.67 2008/03/15 21:09:02 cube Exp $ */
/*
* Copyright (c) 1991-1993 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Computer Systems
* Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*/
/*
* jfw 7/13/97 - The soundblaster code requires the generic bus-space
* structures to be set up properly. Rather than go to the effort of making
* code for a dead line fully generic, properly set up the SB structures and
* leave the rest x86/ISA/default-configuration specific. If you have a
* REAL computer, go buy a REAL sound card.
*/
/*
* Todo:
* - look at other PAS drivers (for PAS native suport)
* - use common sb.c once emulation is setup
*/
/*
* jfw 6/21/98 - WARNING: the PAS native IO ports are scattered all around
* IO port space (0x0388, 0x738B, 0xBF88, 0x2789, ...) which will make proper
* reservation a real pain, so I'm not going to do it (while fixing the
* current reservation code to "work"). As a sanity check, I reserve the
* 0x0388 base address, but you probably shouldn't even think of trying this
* driver unless you're certain you have the hardware installed and it doesn't
* conflict with other hardware...
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pas.c,v 1.67 2008/03/15 21:09:02 cube Exp $");
#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/cpu.h>
#include <sys/intr.h>
#include <sys/bus.h>
#include <machine/pio.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <dev/midi_if.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <dev/isa/sbdspvar.h>
#include <dev/isa/sbreg.h>
#define DEFINE_TRANSLATIONS
#include <dev/isa/pasreg.h>
#ifdef AUDIO_DEBUG
#define DPRINTF(x) if (pasdebug) printf x
int pasdebug = 0;
#else
#define DPRINTF(x)
#endif
/*
* Software state, per SoundBlaster card.
* The soundblaster has multiple functionality, which we must demultiplex.
* One approach is to have one major device number for the soundblaster card,
* and use different minor numbers to indicate which hardware function
* we want. This would make for one large driver. Instead our approach
* is to partition the design into a set of drivers that share an underlying
* piece of hardware. Most things are hard to share, for example, the audio
* and midi ports. For audio, we might want to mix two processes' signals,
* and for midi we might want to merge streams (this is hard due to
* running status). Moreover, we should be able to re-use the high-level
* modules with other kinds of hardware. In this module, we only handle the
* most basic communications with the sb card.
*/
struct pas_softc {
struct sbdsp_softc sc_sbdsp; /* base device, &c. */
bus_space_handle_t pas_port_handle; /* the pas-specific port */
int model;
int rev;
};
int pas_getdev(void *, struct audio_device *);
void pasconf(int, int, int, int);
/*
* Define our interface to the higher level audio driver.
*/
const struct audio_hw_if pas_hw_if = {
sbdsp_open,
sbdsp_close,
0,
sbdsp_query_encoding,
sbdsp_set_params,
sbdsp_round_blocksize,
0,
0,
0,
0,
0,
sbdsp_halt_output,
sbdsp_halt_input,
sbdsp_speaker_ctl,
pas_getdev,
0,
sbdsp_mixer_set_port,
sbdsp_mixer_get_port,
sbdsp_mixer_query_devinfo,
sb_malloc,
sb_free,
sb_round_buffersize,
sb_mappage,
sbdsp_get_props,
sbdsp_trigger_output,
sbdsp_trigger_input,
0,
NULL,
};
/* The Address Translation code is used to convert I/O register addresses to
be relative to the given base -register */
static const char *pasnames[] = {
"",
"Plus",
"CDPC",
"16",
"16Basic"
};
static struct audio_device pas_device = {
"PAS,??",
"",
"pas"
};
/*XXX assume default I/O base address */
#define pasread(p) inb((p))
#define paswrite(d, p) outb((p), (d))
void
pasconf(int model, int sbbase, int sbirq, int sbdrq)
{
paswrite(0x00, INTERRUPT_MASK);
/* Local timer control register */
paswrite(0x36, SAMPLE_COUNTER_CONTROL);
/* Sample rate timer (16 bit) */
paswrite(0x36, SAMPLE_RATE_TIMER);
paswrite(0, SAMPLE_RATE_TIMER);
/* Local timer control register */
paswrite(0x74, SAMPLE_COUNTER_CONTROL);
/* Sample count register (16 bit) */
paswrite(0x74, SAMPLE_BUFFER_COUNTER);
paswrite(0, SAMPLE_BUFFER_COUNTER);
paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE |
P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R,
PCM_CONTROL);
paswrite(S_M_PCM_RESET | S_M_FM_RESET |
S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER);
/*XXX*/
paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1);
paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2);
paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3);
#ifdef BROKEN_BUS_CLOCK
paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND |
S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1);
#else
paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND,
SYSTEM_CONFIGURATION_1);
#endif
/*XXX*/
paswrite(0, SYSTEM_CONFIGURATION_2);
paswrite(0, SYSTEM_CONFIGURATION_3);
/* Sets mute off and selects filter rate of 17.897 kHz */
paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY);
if (model == PAS_16 || model == PAS_16BASIC)
paswrite(8, PRESCALE_DIVIDER);
else
paswrite(0, PRESCALE_DIVIDER);
paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER);
paswrite(5, PARALLEL_MIXER);
/*
* Setup SoundBlaster emulation.
*/
paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS);
paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq],
EMULATION_CONFIGURATION);
paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE);
/*
* Set mid-range levels.
*/
paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER);
paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER);
paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER);
paswrite(50, PARALLEL_MIXER);
paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER);
paswrite(50, PARALLEL_MIXER);
paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB,
PARALLEL_MIXER);
paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER);
paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC,
PARALLEL_MIXER);
paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER);
}
int pasprobe(device_t, cfdata_t, void *);
void pasattach(device_t, device_t, void *);
static int pasfind(cfdata_t, struct pas_softc *,
struct isa_attach_args *, int);
/* argument to pasfind */
#define PASPROBE 1
#define PASATTACH 0
CFATTACH_DECL_NEW(pas, sizeof(struct pas_softc),
pasprobe, pasattach, NULL, NULL);
/*
* Probe / attach routines.
*/
int
pasprobe(device_t parent, cfdata_t match, void *aux)
{
struct isa_attach_args *ia;
struct pas_softc probesc, *sc;
ia = aux;
sc = &probesc;
if (ia->ia_nio < 1)
return 0;
if (ia->ia_nirq < 1)
return 0;
if (ia->ia_ndrq < 1)
return 0;
if (ISA_DIRECT_CONFIG(ia))
return 0;
memset(sc, 0, sizeof *sc);
return pasfind(match, sc, aux, PASPROBE);
}
/*
* Probe for the soundblaster hardware.
*/
static int
pasfind(cfdata_t match, struct pas_softc *sc,
struct isa_attach_args *ia, int probing)
{
int iobase;
u_char id, t;
int rc;
rc = 0; /* failure */
/* ensure we can set this up as a sound blaster */
if (!SB_BASE_VALID(ia->ia_io[0].ir_addr)) {
printf("pas: configured SB iobase 0x%x invalid\n",
ia->ia_io[0].ir_addr);
return 0;
}
if (bus_space_map(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1, 0,
&sc->pas_port_handle)) {
printf("pas: can't map base register %x in probe\n",
PAS_DEFAULT_BASE);
return 0;
}
/*
* WARNING: Setting an option like W:1 or so that disables
* warm boot reset of the card will screw up this detect code
* something fierce. Adding code to handle this means possibly
* interfering with other cards on the bus if you have something
* on base port 0x388. SO be forewarned.
*/
/* Talk to first board */
outb(MASTER_DECODE, 0xbc);
/* Set base address */
#if 0
/* XXX Need to setup pseudo device */
/* XXX What are good io addrs ? */
if (iobase != PAS_DEFAULT_BASE) {
printf("pas: configured iobase %d invalid\n", iobase);
return 0;
}
#else
/* Start out talking to native PAS */
iobase = PAS_DEFAULT_BASE;
#endif
outb(MASTER_DECODE, iobase >> 2);
/* One wait-state */
paswrite(1, WAIT_STATE);
id = pasread(INTERRUPT_MASK);
if (id == 0xff || id == 0xfe) {
/* sanity */
DPRINTF(("pas: bogus card id\n"));
goto unmap1;
}
/*
* We probably have a PAS-series board, now check for a
* PAS2-series board by trying to change the board revision
* bits. PAS2-series hardware won't let you do this because
* the bits are read-only.
*/
t = id ^ 0xe0;
paswrite(t, INTERRUPT_MASK);
t = inb(INTERRUPT_MASK);
paswrite(id, INTERRUPT_MASK);
if (t != id) {
/* Not a PAS2 */
printf("pas: detected card but PAS2 test failed\n");
goto unmap1;
}
/*XXX*/
t = pasread(OPERATION_MODE_1) & 0xf;
sc->model = O_M_1_to_card[t];
if (sc->model != 0) {
sc->rev = pasread(BOARD_REV_ID);
} else {
DPRINTF(("pas: bogus model id\n"));
goto unmap1;
}
if (sc->model >= 0) {
if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) {
printf("pas: sb emulation requires known irq\n");
goto unmap1;
}
pasconf(sc->model, ia->ia_io[0].ir_addr,
ia->ia_irq[0].ir_irq, 1);
} else {
DPRINTF(("pas: could not probe pas\n"));
goto unmap1;
}
/* Now a SoundBlaster, so set up proper bus-space hooks
* appropriately
*/
sc->sc_sbdsp.sc_iobase = ia->ia_io[0].ir_addr;
sc->sc_sbdsp.sc_iot = ia->ia_iot;
/* Map i/o space [we map 24 ports which is the max of the sb and pro */
if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_io[0].ir_addr,
SBP_NPORT, 0, &sc->sc_sbdsp.sc_ioh)) {
printf("pas: can't map i/o space 0x%x/%d in probe\n",
ia->ia_io[0].ir_addr, SBP_NPORT);
goto unmap1;
}
if (sbdsp_reset(&sc->sc_sbdsp) < 0) {
DPRINTF(("pas: couldn't reset card\n"));
goto unmap;
}
/*
* Cannot auto-discover DMA channel.
*/
if (!SB_DRQ_VALID(ia->ia_drq[0].ir_drq)) {
printf("pas: configured DMA chan %d invalid\n",
ia->ia_drq[0].ir_drq);
goto unmap;
}
if (!SB_IRQ_VALID(ia->ia_irq[0].ir_irq)) {
printf("pas: configured irq chan %d invalid\n",
ia->ia_drq[0].ir_drq);
goto unmap;
}
sc->sc_sbdsp.sc_irq = ia->ia_irq[0].ir_irq;
sc->sc_sbdsp.sc_drq8 = ia->ia_drq[0].ir_drq;
sc->sc_sbdsp.sc_drq16 = -1; /* XXX */
if (sbdsp_probe(&sc->sc_sbdsp, match) == 0) {
DPRINTF(("pas: sbdsp probe failed\n"));
goto unmap;
}
rc = 1;
if (probing) {
ia->ia_nio = 1;
ia->ia_io[0].ir_size = SBP_NPORT;
ia->ia_nirq = 1;
ia->ia_ndrq = 1;
ia->ia_niomem = 0;
}
unmap:
if (rc == 0 || probing)
bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh,
SBP_NPORT);
unmap1:
if (rc == 0 || probing)
bus_space_unmap(sc->sc_sbdsp.sc_iot, PAS_DEFAULT_BASE, 1);
return rc;
}
/*
* Attach hardware to driver, attach hardware driver to audio
* pseudo-device driver .
*/
void
pasattach(device_t parent, device_t self, void *aux)
{
struct pas_softc *sc;
struct isa_attach_args *ia;
int iobase;
sc = device_private(self);
sc->sc_sbdsp.sc_dev = self;
ia = (struct isa_attach_args *)aux;
iobase = ia->ia_io[0].ir_addr;
if (!pasfind(device_cfdata(self), sc, ia, PASATTACH)) {
aprint_error_dev(self, "pasfind failed\n");
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[0].ir_irq,
IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp);
aprint_normal(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model],
sc->rev);
sbdsp_attach(&sc->sc_sbdsp);
snprintf(pas_device.name, sizeof(pas_device.name), "pas,%s",
pasnames[sc->model]);
snprintf(pas_device.version, sizeof(pas_device.version), "%d",
sc->rev);
audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, sc->sc_sbdsp.sc_dev);
}
int
pas_getdev(void *addr, struct audio_device *retp)
{
*retp = pas_device;
return 0;
}