667 lines
16 KiB
C
667 lines
16 KiB
C
/*-
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* Copyright (c) 1999 Seigo Tanimura
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* Copyright (c) 1999 Ville-Pertti Keinonen
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $FreeBSD$
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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/kernel.h>
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#include <sys/bus.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <machine/clock.h>
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#include <sys/rman.h>
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#include <sys/soundcard.h>
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#include <dev/sound/pcm/sound.h>
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#include <dev/sound/chip.h>
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#include "bus_if.h"
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#include <isa/isavar.h>
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#include <isa/isa_common.h>
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#ifdef __alpha__ /* XXX workaround a stupid warning */
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#include <alpha/isa/isavar.h>
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#endif
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#define LOGICALID_NOPNP 0
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#define LOGICALID_PCM 0x0000561e
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#define LOGICALID_OPL 0x0300561e
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#define LOGICALID_MIDI 0x0400561e
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/* Interrupt handler. */
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struct gusc_ihandler {
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void (*intr)(void *);
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void *arg;
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};
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/* Here is the parameter structure per a device. */
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struct gusc_softc {
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device_t dev; /* device */
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int io_rid[3]; /* io port rids */
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struct resource *io[3]; /* io port resources */
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int io_alloced[3]; /* io port alloc flag */
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int irq_rid; /* irq rids */
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struct resource *irq; /* irq resources */
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int irq_alloced; /* irq alloc flag */
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int drq_rid[2]; /* drq rids */
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struct resource *drq[2]; /* drq resources */
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int drq_alloced[2]; /* drq alloc flag */
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/* Interrupts are shared (XXX non-PnP only?) */
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struct gusc_ihandler midi_intr;
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struct gusc_ihandler pcm_intr;
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};
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typedef struct gusc_softc *sc_p;
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static int gusc_probe(device_t dev);
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static int gusc_attach(device_t dev);
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static int gusisa_probe(device_t dev);
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static void gusc_intr(void *);
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static struct resource *gusc_alloc_resource(device_t bus, device_t child, int type, int *rid,
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u_long start, u_long end, u_long count, u_int flags);
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static int gusc_release_resource(device_t bus, device_t child, int type, int rid,
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struct resource *r);
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#if notyet
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static device_t find_masterdev(sc_p scp);
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#endif /* notyet */
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static int alloc_resource(sc_p scp);
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static int release_resource(sc_p scp);
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static devclass_t gusc_devclass;
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static int
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gusc_probe(device_t dev)
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{
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device_t child;
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u_int32_t vend_id, logical_id;
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char *s;
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struct sndcard_func *func;
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vend_id = isa_get_vendorid(dev);
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if (vend_id == 0)
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return gusisa_probe(dev);
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logical_id = isa_get_logicalid(dev);
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s = NULL;
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if (vend_id == 0x0100561e) { /* Gravis */
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switch (logical_id) {
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case LOGICALID_PCM:
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s = "Gravis UltraSound Plug & Play PCM";
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func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT);
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if (func == NULL)
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return (ENOMEM);
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bzero(func, sizeof(*func));
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func->func = SCF_PCM;
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child = device_add_child(dev, "pcm", -1);
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device_set_ivars(child, func);
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break;
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#if notyet
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case LOGICALID_OPL:
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s = "Gravis UltraSound Plug & Play OPL";
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func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT);
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if (func == NULL)
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return (ENOMEM);
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bzero(func, sizeof(*func));
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func->func = SCF_SYNTH;
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child = device_add_child(dev, "midi", -1);
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device_set_ivars(child, func);
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break;
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case LOGICALID_MIDI:
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s = "Gravis UltraSound Plug & Play MIDI";
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func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT);
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if (func == NULL)
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return (ENOMEM);
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bzero(func, sizeof(*func));
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func->func = SCF_MIDI;
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child = device_add_child(dev, "midi", -1);
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device_set_ivars(child, func);
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break;
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#endif /* notyet */
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}
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}
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if (s != NULL) {
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device_set_desc(dev, s);
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return (0);
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}
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return (ENXIO);
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}
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static void
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port_wr(struct resource *r, int i, unsigned char v)
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{
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bus_space_write_1(rman_get_bustag(r), rman_get_bushandle(r), i, v);
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}
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static int
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port_rd(struct resource *r, int i)
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{
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return bus_space_read_1(rman_get_bustag(r), rman_get_bushandle(r), i);
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}
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/*
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* Probe for an old (non-PnP) GUS card on the ISA bus.
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*/
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static int
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gusisa_probe(device_t dev)
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{
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device_t child;
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struct resource *res, *res2;
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int base, rid, rid2, s, flags;
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unsigned char val;
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base = isa_get_port(dev);
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flags = device_get_flags(dev);
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rid = 1;
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res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, base + 0x100,
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base + 0x107, 8, RF_ACTIVE);
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if (res == NULL)
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return ENXIO;
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res2 = NULL;
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/*
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* Check for the presence of some GUS card. Reset the card,
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* then see if we can access the memory on it.
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*/
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port_wr(res, 3, 0x4c);
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port_wr(res, 5, 0);
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DELAY(30 * 1000);
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port_wr(res, 3, 0x4c);
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port_wr(res, 5, 1);
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DELAY(30 * 1000);
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s = splhigh();
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/* Write to DRAM. */
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port_wr(res, 3, 0x43); /* Register select */
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port_wr(res, 4, 0); /* Low addr */
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port_wr(res, 5, 0); /* Med addr */
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port_wr(res, 3, 0x44); /* Register select */
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port_wr(res, 4, 0); /* High addr */
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port_wr(res, 7, 0x55); /* DRAM */
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/* Read from DRAM. */
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port_wr(res, 3, 0x43); /* Register select */
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port_wr(res, 4, 0); /* Low addr */
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port_wr(res, 5, 0); /* Med addr */
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port_wr(res, 3, 0x44); /* Register select */
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port_wr(res, 4, 0); /* High addr */
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val = port_rd(res, 7); /* DRAM */
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splx(s);
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if (val != 0x55)
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goto fail;
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rid2 = 0;
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res2 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid2, base, base, 1,
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RF_ACTIVE);
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if (res2 == NULL)
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goto fail;
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s = splhigh();
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port_wr(res2, 0x0f, 0x20);
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val = port_rd(res2, 0x0f);
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splx(s);
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if (val == 0xff || (val & 0x06) == 0)
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val = 0;
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else {
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val = port_rd(res2, 0x506); /* XXX Out of range. */
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if (val == 0xff)
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val = 0;
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}
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bus_release_resource(dev, SYS_RES_IOPORT, rid2, res2);
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bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
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if (val >= 10) {
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struct sndcard_func *func;
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/* Looks like a GUS MAX. Set the rest of the resources. */
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bus_set_resource(dev, SYS_RES_IOPORT, 2, base + 0x10c, 8);
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if (flags & DV_F_DUAL_DMA)
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bus_set_resource(dev, SYS_RES_DRQ, 1,
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flags & DV_F_DRQ_MASK, 1);
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#if notyet
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/* We can support the CS4231 and MIDI devices. */
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func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT);
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if (func == NULL)
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return ENOMEM;
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bzero(func, sizeof *func);
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func->func = SCF_MIDI;
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child = device_add_child(dev, "midi", -1);
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device_set_ivars(child, func);
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#endif /* notyet */
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func = malloc(sizeof(struct sndcard_func), M_DEVBUF, M_NOWAIT);
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if (func == NULL)
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printf("xxx: gus pcm not attached, out of memory\n");
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else {
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bzero(func, sizeof *func);
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func->func = SCF_PCM;
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child = device_add_child(dev, "pcm", -1);
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device_set_ivars(child, func);
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}
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device_set_desc(dev, "Gravis UltraSound MAX");
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return 0;
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} else {
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/*
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* TODO: Support even older GUS cards. MIDI should work on
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* all models.
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*/
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return ENXIO;
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}
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fail:
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bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
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return ENXIO;
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}
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static int
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gusc_attach(device_t dev)
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{
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sc_p scp;
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int unit;
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void *ih;
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scp = device_get_softc(dev);
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unit = device_get_unit(dev);
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bzero(scp, sizeof(*scp));
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scp->dev = dev;
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if (alloc_resource(scp)) {
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release_resource(scp);
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return (ENXIO);
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}
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bus_setup_intr(dev, scp->irq, INTR_TYPE_TTY, gusc_intr, scp, &ih);
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bus_generic_attach(dev);
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return (0);
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}
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/*
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* Handle interrupts on GUS devices until there aren't any left.
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*/
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static void
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gusc_intr(void *arg)
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{
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sc_p scp = (sc_p)arg;
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int did_something;
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do {
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did_something = 0;
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if (scp->pcm_intr.intr != NULL &&
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(port_rd(scp->io[2], 2) & 1)) {
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(*scp->pcm_intr.intr)(scp->pcm_intr.arg);
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did_something = 1;
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}
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#if notyet
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if (scp->midi_intr.intr != NULL &&
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(port_rd(scp->io[1], 0) & 0x80)) {
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(*scp->midi_intr.intr)(scp->midi_intr.arg);
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did_something = 1;
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}
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#endif /* notyet */
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} while (did_something != 0);
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}
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static struct resource *
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gusc_alloc_resource(device_t bus, device_t child, int type, int *rid,
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u_long start, u_long end, u_long count, u_int flags)
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{
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sc_p scp;
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int *alloced, rid_max, alloced_max;
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struct resource **res;
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scp = device_get_softc(bus);
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switch (type) {
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case SYS_RES_IOPORT:
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alloced = scp->io_alloced;
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res = scp->io;
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rid_max = 2;
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alloced_max = 2; /* pcm + midi (more to include synth) */
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break;
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case SYS_RES_IRQ:
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alloced = &scp->irq_alloced;
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res = &scp->irq;
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rid_max = 0;
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alloced_max = 2; /* pcm and midi share the single irq. */
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break;
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case SYS_RES_DRQ:
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alloced = scp->drq_alloced;
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res = scp->drq;
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rid_max = 1;
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alloced_max = 1;
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break;
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default:
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return (NULL);
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}
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if (*rid > rid_max || alloced[*rid] == alloced_max)
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return (NULL);
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alloced[*rid]++;
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return (res[*rid]);
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}
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static int
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gusc_release_resource(device_t bus, device_t child, int type, int rid,
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struct resource *r)
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{
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sc_p scp;
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int *alloced, rid_max;
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scp = device_get_softc(bus);
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switch (type) {
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case SYS_RES_IOPORT:
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alloced = scp->io_alloced;
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rid_max = 2;
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break;
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case SYS_RES_IRQ:
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alloced = &scp->irq_alloced;
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rid_max = 0;
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break;
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case SYS_RES_DRQ:
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alloced = scp->drq_alloced;
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rid_max = 1;
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break;
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default:
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return (1);
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}
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if (rid > rid_max || alloced[rid] == 0)
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return (1);
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alloced[rid]--;
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return (0);
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}
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static int
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gusc_setup_intr(device_t dev, device_t child, struct resource *irq,
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int flags, driver_intr_t *intr, void *arg, void **cookiep)
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{
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sc_p scp = (sc_p)device_get_softc(dev);
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devclass_t devclass;
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devclass = device_get_devclass(child);
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if (strcmp(devclass_get_name(devclass), "midi") == 0) {
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scp->midi_intr.intr = intr;
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scp->midi_intr.arg = arg;
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return 0;
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} else if (strcmp(devclass_get_name(devclass), "pcm") == 0) {
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scp->pcm_intr.intr = intr;
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scp->pcm_intr.arg = arg;
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return 0;
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}
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return bus_generic_setup_intr(dev, child, irq, flags, intr,
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arg, cookiep);
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}
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#if notyet
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static device_t
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find_masterdev(sc_p scp)
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{
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int i, units;
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devclass_t devclass;
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device_t dev;
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devclass = device_get_devclass(scp->dev);
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units = devclass_get_maxunit(devclass);
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dev = NULL;
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for (i = 0 ; i < units ; i++) {
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dev = devclass_get_device(devclass, i);
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if (isa_get_vendorid(dev) == isa_get_vendorid(scp->dev)
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&& isa_get_logicalid(dev) == LOGICALID_PCM
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&& isa_get_serial(dev) == isa_get_serial(scp->dev))
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break;
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}
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if (i == units)
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return (NULL);
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return (dev);
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}
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#endif /* notyet */
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static int io_range[3] = {0x10, 0x8 , 0x4 };
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static int io_offset[3] = {0x0 , 0x100, 0x10c};
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static int
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alloc_resource(sc_p scp)
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{
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int i, base, lid, flags;
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#if notyet
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device_t dev;
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#endif /* notyet */
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flags = 0;
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if (isa_get_vendorid(scp->dev))
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lid = isa_get_logicalid(scp->dev);
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else {
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lid = LOGICALID_NOPNP;
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flags = device_get_flags(scp->dev);
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}
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switch(lid) {
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case LOGICALID_PCM:
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case LOGICALID_NOPNP: /* XXX Non-PnP */
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if (lid == LOGICALID_NOPNP)
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base = isa_get_port(scp->dev);
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else
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base = 0;
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for (i = 0 ; i < sizeof(scp->io) / sizeof(*scp->io) ; i++) {
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if (scp->io[i] == NULL) {
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scp->io_rid[i] = i;
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if (base == 0)
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scp->io[i] = bus_alloc_resource(scp->dev, SYS_RES_IOPORT, &scp->io_rid[i],
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0, ~0, io_range[i], RF_ACTIVE);
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else
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scp->io[i] = bus_alloc_resource(scp->dev, SYS_RES_IOPORT, &scp->io_rid[i],
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base + io_offset[i],
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base + io_offset[i] + io_range[i] - 1
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, io_range[i], RF_ACTIVE);
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if (scp->io[i] == NULL)
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return (1);
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scp->io_alloced[i] = 0;
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}
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}
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if (scp->irq == NULL) {
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scp->irq_rid = 0;
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scp->irq = bus_alloc_resource(scp->dev, SYS_RES_IRQ, &scp->irq_rid,
|
|
0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
|
|
if (scp->irq == NULL)
|
|
return (1);
|
|
scp->irq_alloced = 0;
|
|
}
|
|
for (i = 0 ; i < sizeof(scp->drq) / sizeof(*scp->drq) ; i++) {
|
|
if (scp->drq[i] == NULL) {
|
|
scp->drq_rid[i] = i;
|
|
if (base == 0 || i == 0)
|
|
scp->drq[i] = bus_alloc_resource(scp->dev, SYS_RES_DRQ, &scp->drq_rid[i],
|
|
0, ~0, 1, RF_ACTIVE);
|
|
else if ((flags & DV_F_DUAL_DMA) != 0)
|
|
/* XXX The secondary drq is specified in the flag. */
|
|
scp->drq[i] = bus_alloc_resource(scp->dev, SYS_RES_DRQ, &scp->drq_rid[i],
|
|
flags & DV_F_DRQ_MASK,
|
|
flags & DV_F_DRQ_MASK, 1, RF_ACTIVE);
|
|
if (scp->drq[i] == NULL)
|
|
return (1);
|
|
scp->drq_alloced[i] = 0;
|
|
}
|
|
}
|
|
break;
|
|
#if notyet
|
|
case LOGICALID_OPL:
|
|
if (scp->io[0] == NULL) {
|
|
scp->io_rid[0] = 0;
|
|
scp->io[0] = bus_alloc_resource(scp->dev, SYS_RES_IOPORT, &scp->io_rid[0],
|
|
0, ~0, io_range[0], RF_ACTIVE);
|
|
if (scp->io[0] == NULL)
|
|
return (1);
|
|
scp->io_alloced[0] = 0;
|
|
}
|
|
break;
|
|
case LOGICALID_MIDI:
|
|
if (scp->io[0] == NULL) {
|
|
scp->io_rid[0] = 0;
|
|
scp->io[0] = bus_alloc_resource(scp->dev, SYS_RES_IOPORT, &scp->io_rid[0],
|
|
0, ~0, io_range[0], RF_ACTIVE);
|
|
if (scp->io[0] == NULL)
|
|
return (1);
|
|
scp->io_alloced[0] = 0;
|
|
}
|
|
if (scp->irq == NULL) {
|
|
/* The irq is shared with pcm audio. */
|
|
dev = find_masterdev(scp);
|
|
if (dev == NULL)
|
|
return (1);
|
|
scp->irq_rid = 0;
|
|
scp->irq = BUS_ALLOC_RESOURCE(dev, NULL, SYS_RES_IRQ, &scp->irq_rid,
|
|
0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
|
|
if (scp->irq == NULL)
|
|
return (1);
|
|
scp->irq_alloced = 0;
|
|
}
|
|
break;
|
|
#endif /* notyet */
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
release_resource(sc_p scp)
|
|
{
|
|
int i, lid, flags;
|
|
#if notyet
|
|
device_t dev;
|
|
#endif /* notyet */
|
|
|
|
flags = 0;
|
|
if (isa_get_vendorid(scp->dev))
|
|
lid = isa_get_logicalid(scp->dev);
|
|
else {
|
|
lid = LOGICALID_NOPNP;
|
|
flags = device_get_flags(scp->dev);
|
|
}
|
|
switch(lid) {
|
|
case LOGICALID_PCM:
|
|
case LOGICALID_NOPNP: /* XXX Non-PnP */
|
|
for (i = 0 ; i < sizeof(scp->io) / sizeof(*scp->io) ; i++) {
|
|
if (scp->io[i] != NULL) {
|
|
bus_release_resource(scp->dev, SYS_RES_IOPORT, scp->io_rid[i], scp->io[i]);
|
|
scp->io[i] = NULL;
|
|
}
|
|
}
|
|
if (scp->irq != NULL) {
|
|
bus_release_resource(scp->dev, SYS_RES_IRQ, scp->irq_rid, scp->irq);
|
|
scp->irq = NULL;
|
|
}
|
|
for (i = 0 ; i < sizeof(scp->drq) / sizeof(*scp->drq) ; i++) {
|
|
if (scp->drq[i] != NULL) {
|
|
bus_release_resource(scp->dev, SYS_RES_DRQ, scp->drq_rid[i], scp->drq[i]);
|
|
scp->drq[i] = NULL;
|
|
}
|
|
}
|
|
break;
|
|
#if notyet
|
|
case LOGICALID_OPL:
|
|
if (scp->io[0] != NULL) {
|
|
bus_release_resource(scp->dev, SYS_RES_IOPORT, scp->io_rid[0], scp->io[0]);
|
|
scp->io[0] = NULL;
|
|
}
|
|
break;
|
|
case LOGICALID_MIDI:
|
|
if (scp->io[0] != NULL) {
|
|
bus_release_resource(scp->dev, SYS_RES_IOPORT, scp->io_rid[0], scp->io[0]);
|
|
scp->io[0] = NULL;
|
|
}
|
|
if (scp->irq != NULL) {
|
|
/* The irq is shared with pcm audio. */
|
|
dev = find_masterdev(scp);
|
|
if (dev == NULL)
|
|
return (1);
|
|
BUS_RELEASE_RESOURCE(dev, NULL, SYS_RES_IOPORT, scp->irq_rid, scp->irq);
|
|
scp->irq = NULL;
|
|
}
|
|
break;
|
|
#endif /* notyet */
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t gusc_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, gusc_probe),
|
|
DEVMETHOD(device_attach, gusc_attach),
|
|
DEVMETHOD(device_detach, bus_generic_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_print_child, bus_generic_print_child),
|
|
DEVMETHOD(bus_alloc_resource, gusc_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, gusc_release_resource),
|
|
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
|
|
DEVMETHOD(bus_setup_intr, gusc_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t gusc_driver = {
|
|
"gusc",
|
|
gusc_methods,
|
|
sizeof(struct gusc_softc),
|
|
};
|
|
|
|
/*
|
|
* gusc can be attached to an isa bus.
|
|
*/
|
|
DRIVER_MODULE(gusc, isa, gusc_driver, gusc_devclass, 0, 0);
|