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authorpk <pk@NetBSD.org>1995-04-25 20:05:32 +0000
committerpk <pk@NetBSD.org>1995-04-25 20:05:32 +0000
commit8d90aefeb0d63633af698077d7b6d95d654af79f (patch)
tree10f16254549f0b69f77c3e6c4e739800fb5fc25a /sys/dev
parente9177420caa50f0ed30dcf7b8a8fca69883afbf1 (diff)
New audio driver from Rolf Grossmann.
Diffstat (limited to 'sys/dev')
-rw-r--r--sys/dev/ic/am7930.c948
-rw-r--r--sys/dev/ic/am7930var.h82
2 files changed, 1030 insertions, 0 deletions
diff --git a/sys/dev/ic/am7930.c b/sys/dev/ic/am7930.c
new file mode 100644
index 00000000000..511f238550a
--- /dev/null
+++ b/sys/dev/ic/am7930.c
@@ -0,0 +1,948 @@
+/* $NetBSD: am7930.c,v 1.1 1995/04/25 20:05:37 pk Exp $ */
+/*
+ * Copyright (c) 1995 Rolf Grossmann
+ * 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 Rolf Grossmann.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "audio.h"
+#if NAUDIO > 0
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/device.h>
+#include <sys/proc.h>
+
+#include <machine/autoconf.h>
+#include <machine/cpu.h>
+
+#include <sys/audioio.h>
+#include <dev/audio_if.h>
+
+#include <dev/ic/amd7930.h>
+#include <sparc/dev/amd7930var.h>
+
+#ifdef DEBUG
+extern void Dprintf __P((const char *, ...));
+
+int amd7930debug = 0;
+#define DPRINTF(x) if (amd7930debug) Dprintf x
+#else
+#define DPRINTF(x)
+#endif
+
+/*
+ * Software state, per AMD79C30 audio chip.
+ */
+struct amd7930_softc {
+ struct device sc_dev; /* base device */
+ struct intrhand sc_hwih; /* hardware interrupt vector */
+ struct intrhand sc_swih; /* software interrupt vector */
+ int sc_interrupts; /* number of interrupts taken */
+
+ int sc_open; /* single use device */
+ int sc_locked; /* true when transfering data */
+ struct mapreg sc_map; /* current contents of map registers */
+
+ u_char sc_rlevel; /* record level */
+ u_char sc_plevel; /* play level */
+ u_char sc_mlevel; /* monitor level */
+ u_char sc_out_port; /* output port */
+
+ /* interfacing with the interrupt handlers */
+ void (*sc_rintr)(void*); /* input completion intr handler */
+ void *sc_rarg; /* arg for sc_rintr() */
+ void (*sc_pintr)(void*); /* output completion intr handler */
+ void *sc_parg; /* arg for sc_pintr() */
+
+ /* sc_au is special in that the hardware interrupt handler uses it */
+ struct auio sc_au; /* recv and xmit buffers, etc */
+};
+
+/* interrupt interfaces */
+#ifdef AUDIO_C_HANDLER
+int amd7930hwintr __P((void *));
+#define AUDIO_SET_SWINTR ienab_bis(IE_L4)
+#else
+struct auio *auiop;
+extern void amd7930_trap();
+#endif
+int amd7930swintr __P((void *));
+
+/* forward declarations */
+void audio_setmap __P((volatile struct amd7930 *, struct mapreg *));
+static void init_amd __P((volatile struct amd7930 *));
+
+/* autoconfiguration driver */
+void amd9730attach __P((struct device *, struct device *, void *));
+int amd9730match __P((struct device *, void *, void *));
+
+struct cfdriver audiocd = {
+ NULL, "audio", amd9730match, amd9730attach,
+ DV_DULL, sizeof(struct amd7930_softc)
+};
+
+struct audio_device amd7930_device = {
+ "amd7930",
+ "x",
+ "audio"
+};
+
+/* Write 16 bits of data from variable v to the data port of the audio chip */
+#define WAMD16(amd, v) ((amd)->dr = (v), (amd)->dr = (v) >> 8)
+
+/* The following tables stolen from former (4.4Lite's) sys/sparc/bsd_audio.c */
+
+/*
+ * gx, gr & stg gains. this table must contain 256 elements with
+ * the 0th being "infinity" (the magic value 9008). The remaining
+ * elements match sun's gain curve (but with higher resolution):
+ * -18 to 0dB in .16dB steps then 0 to 12dB in .08dB steps.
+ */
+static const u_short gx_coeff[256] = {
+ 0x9008, 0x8b7c, 0x8b51, 0x8b45, 0x8b42, 0x8b3b, 0x8b36, 0x8b33,
+ 0x8b32, 0x8b2a, 0x8b2b, 0x8b2c, 0x8b25, 0x8b23, 0x8b22, 0x8b22,
+ 0x9122, 0x8b1a, 0x8aa3, 0x8aa3, 0x8b1c, 0x8aa6, 0x912d, 0x912b,
+ 0x8aab, 0x8b12, 0x8aaa, 0x8ab2, 0x9132, 0x8ab4, 0x913c, 0x8abb,
+ 0x9142, 0x9144, 0x9151, 0x8ad5, 0x8aeb, 0x8a79, 0x8a5a, 0x8a4a,
+ 0x8b03, 0x91c2, 0x91bb, 0x8a3f, 0x8a33, 0x91b2, 0x9212, 0x9213,
+ 0x8a2c, 0x921d, 0x8a23, 0x921a, 0x9222, 0x9223, 0x922d, 0x9231,
+ 0x9234, 0x9242, 0x925b, 0x92dd, 0x92c1, 0x92b3, 0x92ab, 0x92a4,
+ 0x92a2, 0x932b, 0x9341, 0x93d3, 0x93b2, 0x93a2, 0x943c, 0x94b2,
+ 0x953a, 0x9653, 0x9782, 0x9e21, 0x9d23, 0x9cd2, 0x9c23, 0x9baa,
+ 0x9bde, 0x9b33, 0x9b22, 0x9b1d, 0x9ab2, 0xa142, 0xa1e5, 0x9a3b,
+ 0xa213, 0xa1a2, 0xa231, 0xa2eb, 0xa313, 0xa334, 0xa421, 0xa54b,
+ 0xada4, 0xac23, 0xab3b, 0xaaab, 0xaa5c, 0xb1a3, 0xb2ca, 0xb3bd,
+ 0xbe24, 0xbb2b, 0xba33, 0xc32b, 0xcb5a, 0xd2a2, 0xe31d, 0x0808,
+ 0x72ba, 0x62c2, 0x5c32, 0x52db, 0x513e, 0x4cce, 0x43b2, 0x4243,
+ 0x41b4, 0x3b12, 0x3bc3, 0x3df2, 0x34bd, 0x3334, 0x32c2, 0x3224,
+ 0x31aa, 0x2a7b, 0x2aaa, 0x2b23, 0x2bba, 0x2c42, 0x2e23, 0x25bb,
+ 0x242b, 0x240f, 0x231a, 0x22bb, 0x2241, 0x2223, 0x221f, 0x1a33,
+ 0x1a4a, 0x1acd, 0x2132, 0x1b1b, 0x1b2c, 0x1b62, 0x1c12, 0x1c32,
+ 0x1d1b, 0x1e71, 0x16b1, 0x1522, 0x1434, 0x1412, 0x1352, 0x1323,
+ 0x1315, 0x12bc, 0x127a, 0x1235, 0x1226, 0x11a2, 0x1216, 0x0a2a,
+ 0x11bc, 0x11d1, 0x1163, 0x0ac2, 0x0ab2, 0x0aab, 0x0b1b, 0x0b23,
+ 0x0b33, 0x0c0f, 0x0bb3, 0x0c1b, 0x0c3e, 0x0cb1, 0x0d4c, 0x0ec1,
+ 0x079a, 0x0614, 0x0521, 0x047c, 0x0422, 0x03b1, 0x03e3, 0x0333,
+ 0x0322, 0x031c, 0x02aa, 0x02ba, 0x02f2, 0x0242, 0x0232, 0x0227,
+ 0x0222, 0x021b, 0x01ad, 0x0212, 0x01b2, 0x01bb, 0x01cb, 0x01f6,
+ 0x0152, 0x013a, 0x0133, 0x0131, 0x012c, 0x0123, 0x0122, 0x00a2,
+ 0x011b, 0x011e, 0x0114, 0x00b1, 0x00aa, 0x00b3, 0x00bd, 0x00ba,
+ 0x00c5, 0x00d3, 0x00f3, 0x0062, 0x0051, 0x0042, 0x003b, 0x0033,
+ 0x0032, 0x002a, 0x002c, 0x0025, 0x0023, 0x0022, 0x001a, 0x0021,
+ 0x001b, 0x001b, 0x001d, 0x0015, 0x0013, 0x0013, 0x0012, 0x0012,
+ 0x000a, 0x000a, 0x0011, 0x0011, 0x000b, 0x000b, 0x000c, 0x000e,
+};
+
+/*
+ * second stage play gain.
+ */
+static const u_short ger_coeff[] = {
+ 0x431f, /* 5. dB */
+ 0x331f, /* 5.5 dB */
+ 0x40dd, /* 6. dB */
+ 0x11dd, /* 6.5 dB */
+ 0x440f, /* 7. dB */
+ 0x411f, /* 7.5 dB */
+ 0x311f, /* 8. dB */
+ 0x5520, /* 8.5 dB */
+ 0x10dd, /* 9. dB */
+ 0x4211, /* 9.5 dB */
+ 0x410f, /* 10. dB */
+ 0x111f, /* 10.5 dB */
+ 0x600b, /* 11. dB */
+ 0x00dd, /* 11.5 dB */
+ 0x4210, /* 12. dB */
+ 0x110f, /* 13. dB */
+ 0x7200, /* 14. dB */
+ 0x2110, /* 15. dB */
+ 0x2200, /* 15.9 dB */
+ 0x000b, /* 16.9 dB */
+ 0x000f /* 18. dB */
+#define NGER (sizeof(ger_coeff) / sizeof(ger_coeff[0]))
+};
+
+/*
+ * Define our interface to the higher level audio driver.
+ */
+int amd7930_open __P((dev_t, int));
+void amd7930_close __P((void *));
+int amd7930_set_in_sr __P((void *, u_long));
+u_long amd7930_get_in_sr __P((void *));
+int amd7930_set_out_sr __P((void *, u_long));
+u_long amd7930_get_out_sr __P((void *));
+int amd7930_query_encoding __P((void *, struct audio_encoding *));
+int amd7930_set_encoding __P((void *, u_int));
+int amd7930_get_encoding __P((void *));
+int amd7930_set_precision __P((void *, u_int));
+int amd7930_get_precision __P((void *));
+int amd7930_set_channels __P((void *, int));
+int amd7930_get_channels __P((void *));
+int amd7930_round_blocksize __P((void *, int));
+int amd7930_set_out_port __P((void *, int));
+int amd7930_get_out_port __P((void *));
+int amd7930_set_in_port __P((void *, int));
+int amd7930_get_in_port __P((void *));
+int amd7930_commit_settings __P((void *));
+u_int amd7930_get_silence __P((int));
+int amd7930_start_output __P((void *, void *, int, void (*)(), void *));
+int amd7930_start_input __P((void *, void *, int, void (*)(), void *));
+int amd7930_halt_output __P((void *));
+int amd7930_halt_input __P((void *));
+int amd7930_cont_output __P((void *));
+int amd7930_cont_input __P((void *));
+int amd7930_getdev __P((void *, struct audio_device *));
+int amd7930_setfd __P((void *, int));
+int amd7930_set_port __P((void *, mixer_ctrl_t *));
+int amd7930_get_port __P((void *, mixer_ctrl_t *));
+int amd7930_query_devinfo __P((void *, mixer_devinfo_t *));
+
+
+struct audio_hw_if sa_hw_if = {
+ amd7930_open,
+ amd7930_close,
+ NULL,
+ amd7930_set_in_sr,
+ amd7930_get_in_sr,
+ amd7930_set_out_sr,
+ amd7930_get_out_sr,
+ amd7930_query_encoding,
+ amd7930_set_encoding,
+ amd7930_get_encoding,
+ amd7930_set_precision,
+ amd7930_get_precision,
+ amd7930_set_channels,
+ amd7930_get_channels,
+ amd7930_round_blocksize,
+ amd7930_set_out_port,
+ amd7930_get_out_port,
+ amd7930_set_in_port,
+ amd7930_get_in_port,
+ amd7930_commit_settings,
+ amd7930_get_silence,
+ NULL,
+ NULL,
+ amd7930_start_output,
+ amd7930_start_input,
+ amd7930_halt_output,
+ amd7930_halt_input,
+ amd7930_cont_output,
+ amd7930_cont_input,
+ NULL,
+ amd7930_getdev,
+ amd7930_setfd,
+ amd7930_set_port,
+ amd7930_get_port,
+ amd7930_query_devinfo,
+ 1,
+ 0
+};
+
+/* autoconfig routines */
+
+int
+amd9730match(parent, vcf, aux)
+ struct device *parent;
+ void *vcf, *aux;
+{
+ struct cfdata *cf = vcf;
+ register struct confargs *ca = aux;
+ register struct romaux *ra = &ca->ca_ra;
+
+ if (cputyp==CPU_SUN4)
+ return (0);
+ return (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0);
+}
+
+/*
+ * Audio chip found.
+ */
+void
+amd9730attach(parent, self, args)
+ struct device *parent, *self;
+ void *args;
+{
+ register struct amd7930_softc *sc = (struct amd7930_softc *)self;
+ register struct confargs *ca = args;
+ register struct romaux *ra = &ca->ca_ra;
+ register volatile struct amd7930 *amd;
+ register int pri;
+
+ if (ra->ra_nintr != 1) {
+ printf(": expected 1 interrupt, got %d\n", ra->ra_nintr);
+ return;
+ }
+ pri = ra->ra_intr[0].int_pri;
+ printf(" pri %d, softpri %d\n", pri, PIL_AUSOFT);
+ amd = (volatile struct amd7930 *)(ra->ra_vaddr ?
+ ra->ra_vaddr : mapiodev(ra->ra_paddr, sizeof (*amd),
+ ca->ca_bustype));
+
+ sc->sc_map.mr_mmr1 = AMD_MMR1_GX | AMD_MMR1_GER |
+ AMD_MMR1_GR | AMD_MMR1_STG;
+ sc->sc_au.au_amd = amd;
+ /* set boot defaults */
+ sc->sc_rlevel = 128;
+ sc->sc_plevel = 128;
+ sc->sc_mlevel = 0;
+ sc->sc_out_port = SUNAUDIO_SPEAKER;
+
+ init_amd(amd);
+
+#ifndef AUDIO_C_HANDLER
+ auiop = &sc->sc_au;
+ intr_fasttrap(pri, amd7930_trap);
+#else
+ sc->sc_hwih.ih_fun = amd7930hwintr;
+ sc->sc_hwih.ih_arg = &sc->sc_au;
+ intr_establish(pri, &sc->sc_hwih);
+#endif
+ sc->sc_swih.ih_fun = amd7930swintr;
+ sc->sc_swih.ih_arg = sc;
+ intr_establish(PIL_AUSOFT, &sc->sc_swih);
+
+ if (audio_hardware_attach(&sa_hw_if, sc) != 0)
+ printf("audio: could not attach to audio pseudo-device driver\n");
+}
+
+static void
+init_amd(amd)
+ register volatile struct amd7930 *amd;
+{
+ /* disable interrupts */
+ amd->cr = AMDR_INIT;
+ amd->dr = AMD_INIT_PMS_ACTIVE | AMD_INIT_INT_DISABLE;
+
+ /*
+ * Initialize the mux unit. We use MCR3 to route audio (MAP)
+ * through channel Bb. MCR1 and MCR2 are unused.
+ * Setting the INT enable bit in MCR4 will generate an interrupt
+ * on each converted audio sample.
+ */
+ amd->cr = AMDR_MUX_1_4;
+ amd->dr = 0;
+ amd->dr = 0;
+ amd->dr = (AMD_MCRCHAN_BB << 4) | AMD_MCRCHAN_BA;
+ amd->dr = AMD_MCR4_INT_ENABLE;
+}
+
+int
+amd7930_open(dev, flags)
+ dev_t dev;
+ int flags;
+{
+ register struct amd7930_softc *sc;
+ register volatile struct amd7930 *amd;
+ int unit = AUDIOUNIT(dev);
+
+ DPRINTF(("sa_open: unit %d\n",unit));
+
+ if (unit >= audiocd.cd_ndevs)
+ return (ENODEV);
+ if ((sc = audiocd.cd_devs[unit]) == NULL)
+ return (ENXIO);
+ if (sc->sc_open)
+ return (EBUSY);
+ sc->sc_open = 1;
+ sc->sc_locked = 0;
+ sc->sc_rintr = 0;
+ sc->sc_rarg = 0;
+ sc->sc_pintr = 0;
+ sc->sc_parg = 0;
+
+ sc->sc_au.au_rdata = 0;
+ sc->sc_au.au_pdata = 0;
+
+ DPRINTF(("saopen: ok -> sc=0x%x\n",sc));
+
+ return (0);
+}
+
+void
+amd7930_close(addr)
+ void *addr;
+{
+ register struct amd7930_softc *sc = addr;
+
+ DPRINTF(("sa_close: sc=0x%x\n", sc));
+ /*
+ * halt i/o, clear open flag, and done.
+ */
+ amd7930_halt_input(sc);
+ amd7930_halt_output(sc);
+ sc->sc_open = 0;
+
+ DPRINTF(("sa_close: closed.\n"));
+}
+
+int
+amd7930_set_in_sr(addr, sr)
+ void *addr;
+ u_long sr;
+{
+ if (sr != 8000)
+ return EINVAL;
+
+ return(0); /* no other sampling rates supported by amd chip */
+}
+
+u_long
+amd7930_get_in_sr(addr)
+ void *addr;
+{
+ return(8000);
+}
+
+int
+amd7930_set_out_sr(addr, sr)
+ void *addr;
+ u_long sr;
+{
+ if (sr != 8000)
+ return(EINVAL);
+
+ return(0); /* no other sampling rates supported by amd chip */
+}
+
+u_long
+amd7930_get_out_sr(addr)
+ void *addr;
+{
+ return(8000);
+}
+
+int
+amd7930_query_encoding(addr, fp)
+ void *addr;
+ struct audio_encoding *fp;
+{
+ switch (fp->index) { /* ??? */
+ case 0:
+ strcpy(fp->name, "MU-Law");
+ fp->format_id = AUDIO_ENCODING_ULAW;
+ break;
+ default:
+ return(EINVAL);
+ /*NOTREACHED*/
+ }
+ return(0);
+}
+
+int
+amd7930_set_encoding(addr, enc)
+ void *addr;
+ u_int enc;
+{
+ if (enc != AUDIO_ENCODING_ULAW)
+ return(EINVAL);
+
+ return(0); /* no other encoding supported by amd chip */
+}
+
+int
+amd7930_get_encoding(addr)
+ void *addr;
+{
+ return(AUDIO_ENCODING_ULAW);
+}
+
+int
+amd7930_set_precision(addr, prec)
+ void *addr;
+ u_int prec;
+{
+ if (prec != 8)
+ return(EINVAL);
+
+ return(0); /* no other precision supported by amd chip */
+}
+
+int
+amd7930_get_precision(addr)
+ void *addr;
+{
+ return(8);
+}
+
+int
+amd7930_set_channels(addr, chans)
+ void *addr;
+ int chans;
+{
+ if (chans != 1)
+ return(EINVAL);
+
+ return(0); /* only 1 channel supported by amd chip */
+}
+
+int
+amd7930_get_channels(addr)
+ void *addr;
+{
+ return(1);
+}
+
+int
+amd7930_round_blocksize(addr, blk)
+ void *addr;
+ int blk;
+{
+ return(blk);
+}
+
+int
+amd7930_set_out_port(addr, port)
+ void *addr;
+ int port;
+{
+ register struct amd7930_softc *sc = addr;
+
+ switch(port) {
+ case SUNAUDIO_SPEAKER:
+ case SUNAUDIO_HEADPHONES:
+ sc->sc_out_port = port; /* set on commit */
+ break;
+ default:
+ return(EINVAL);
+ }
+ return(0);
+}
+
+int
+amd7930_get_out_port(addr)
+ void *addr;
+{
+ register struct amd7930_softc *sc = addr;
+
+ return(sc->sc_out_port);
+}
+
+int
+amd7930_set_in_port(addr, port)
+ void *addr;
+ int port;
+{
+ if (port != SUNAUDIO_MIC_PORT)
+ return(EINVAL);
+
+ return(0); /* only microphone input supported by amd chip */
+}
+
+int
+amd7930_get_in_port(addr)
+ void *addr;
+{
+ return(SUNAUDIO_MIC_PORT);
+}
+
+int
+amd7930_commit_settings(addr)
+ void *addr;
+{
+ register struct amd7930_softc *sc = addr;
+ register struct mapreg *map;
+ register volatile struct amd7930 *amd;
+ register int s, level;
+
+ DPRINTF(("sa_commit.\n"));
+
+ map = &sc->sc_map;
+ amd = sc->sc_au.au_amd;
+
+ map->mr_gx = gx_coeff[sc->sc_rlevel];
+ map->mr_stgr = gx_coeff[sc->sc_mlevel];
+
+ level = (sc->sc_plevel * (256 + NGER)) >> 8;
+ if (level >= 256) {
+ map->mr_ger = ger_coeff[level - 256];
+ map->mr_gr = gx_coeff[255];
+ } else {
+ map->mr_ger = ger_coeff[0];
+ map->mr_gr = gx_coeff[level];
+ }
+
+ if (sc->sc_out_port == SUNAUDIO_SPEAKER)
+ map->mr_mmr2 |= AMD_MMR2_LS;
+ else
+ map->mr_mmr2 &= ~AMD_MMR2_LS;
+
+ s = splaudio();
+
+ amd->cr = AMDR_MAP_MMR1;
+ amd->dr = map->mr_mmr1;
+ amd->cr = AMDR_MAP_GX;
+ WAMD16(amd, map->mr_gx);
+ amd->cr = AMDR_MAP_STG;
+ WAMD16(amd, map->mr_stgr);
+ amd->cr = AMDR_MAP_GR;
+ WAMD16(amd, map->mr_gr);
+ amd->cr = AMDR_MAP_GER;
+ WAMD16(amd, map->mr_ger);
+ amd->cr = AMDR_MAP_MMR2;
+ amd->dr = map->mr_mmr2;
+
+ splx(s);
+ return(0);
+}
+
+u_int
+amd7930_get_silence(enc)
+ int enc;
+{
+ return(0x7f);
+}
+
+int
+amd7930_start_output(addr, p, cc, intr, arg)
+ void *addr;
+ void *p;
+ int cc;
+ void (*intr)();
+ void *arg;
+{
+ register struct amd7930_softc *sc = addr;
+
+#ifdef DEBUG
+ if (amd7930debug > 1)
+ Dprintf("sa_start_output: cc=%d 0x%x (0x%x)\n", cc, intr, arg);
+#endif
+
+ if (!sc->sc_locked) {
+ register volatile struct amd7930 *amd;
+
+ amd = sc->sc_au.au_amd;
+ amd->cr = AMDR_INIT;
+ amd->dr = AMD_INIT_PMS_ACTIVE;
+ sc->sc_locked = 1;
+ DPRINTF(("sa_start_output: started intrs.\n"));
+ }
+ sc->sc_pintr = intr;
+ sc->sc_parg = arg;
+ sc->sc_au.au_pdata = p;
+ sc->sc_au.au_pend = p + cc - 1;
+ return(0);
+}
+
+/* ARGSUSED */
+int
+amd7930_start_input(addr, p, cc, intr, arg)
+ void *addr;
+ void *p;
+ int cc;
+ void (*intr)();
+ void *arg;
+{
+ register struct amd7930_softc *sc = addr;
+
+#ifdef DEBUG
+ if (amd7930debug > 1)
+ Dprintf("sa_start_input: cc=%d 0x%x (0x%x)\n", cc, intr, arg);
+#endif
+
+ if (!sc->sc_locked) {
+ register volatile struct amd7930 *amd;
+
+ amd = sc->sc_au.au_amd;
+ amd->cr = AMDR_INIT;
+ amd->dr = AMD_INIT_PMS_ACTIVE;
+ sc->sc_locked = 1;
+ DPRINTF(("sa_start_input: started intrs.\n"));
+ }
+ sc->sc_rintr = intr;
+ sc->sc_rarg = arg;
+ sc->sc_au.au_rdata = p;
+ sc->sc_au.au_rend = p + cc -1;
+ return(0);
+}
+
+int
+amd7930_halt_output(addr)
+ void *addr;
+{
+ register struct amd7930_softc *sc = addr;
+ register volatile struct amd7930 *amd;
+
+ /* XXX only halt, if input is also halted ?? */
+ amd = sc->sc_au.au_amd;
+ amd->cr = AMDR_INIT;
+ amd->dr = AMD_INIT_PMS_ACTIVE | AMD_INIT_INT_DISABLE;
+ sc->sc_locked = 0;
+
+ return(0);
+}
+
+int
+amd7930_halt_input(addr)
+ void *addr;
+{
+ register struct amd7930_softc *sc = addr;
+ register volatile struct amd7930 *amd;
+
+ /* XXX only halt, if output is also halted ?? */
+ amd = sc->sc_au.au_amd;
+ amd->cr = AMDR_INIT;
+ amd->dr = AMD_INIT_PMS_ACTIVE | AMD_INIT_INT_DISABLE;
+ sc->sc_locked = 0;
+
+ return(0);
+}
+
+int
+amd7930_cont_output(addr)
+ void *addr;
+{
+ DPRINTF(("amd7930_cont_output: never called, what should it do?!\n"));
+ return(0);
+}
+
+int
+amd7930_cont_input(addr)
+ void *addr;
+{
+ DPRINTF(("amd7930_cont_input: never called, what should it do?!\n"));
+ return(0);
+}
+
+int
+amd7930_getdev(addr, retp)
+ void *addr;
+ struct audio_device *retp;
+{
+ *retp = amd7930_device;
+ return 0;
+}
+
+int
+amd7930_setfd(addr, flag)
+ void *addr;
+ int flag;
+{
+ /* Always full-duplex */
+ return(0);
+}
+
+int
+amd7930_set_port(addr, cp)
+ void *addr;
+ mixer_ctrl_t *cp;
+{
+ register struct amd7930_softc *sc = addr;
+
+ DPRINTF(("amd7930_set_port: port=%d", cp->dev));
+
+ if (cp->type != AUDIO_MIXER_VALUE || cp->un.value.num_channels != 1)
+ return(EINVAL);
+
+ switch(cp->dev) {
+ case SUNAUDIO_MIC_PORT:
+ sc->sc_rlevel = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
+ break;
+ case SUNAUDIO_SPEAKER:
+ case SUNAUDIO_HEADPHONES:
+ sc->sc_plevel = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
+ break;
+ case SUNAUDIO_MONITOR:
+ sc->sc_mlevel = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
+ break;
+ default:
+ return(EINVAL);
+ /* NOTREACHED */
+ }
+ return(0);
+}
+
+int
+amd7930_get_port(addr, cp)
+ void *addr;
+ mixer_ctrl_t *cp;
+{
+ register struct amd7930_softc *sc = addr;
+
+ DPRINTF(("amd7930_get_port: port=%d", cp->dev));
+
+ if (cp->type != AUDIO_MIXER_VALUE || cp->un.value.num_channels != 1)
+ return(EINVAL);
+
+ switch(cp->dev) {
+ case SUNAUDIO_MIC_PORT:
+ cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_rlevel;
+ break;
+ case SUNAUDIO_SPEAKER:
+ case SUNAUDIO_HEADPHONES:
+ cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_plevel;
+ break;
+ case SUNAUDIO_MONITOR:
+ cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_mlevel;
+ break;
+ default:
+ return(EINVAL);
+ /* NOTREACHED */
+ }
+ return(0);
+}
+
+int
+amd7930_query_devinfo(addr, dip)
+ void *addr;
+ register mixer_devinfo_t *dip;
+{
+ register struct amd7930_softc *sc = addr;
+
+ switch(dip->index) {
+ case SUNAUDIO_MIC_PORT:
+ dip->type = AUDIO_MIXER_VALUE;
+ dip->mixer_class = SUNAUDIO_INPUT_CLASS;
+ dip->prev = dip->next = AUDIO_MIXER_LAST;
+ strcpy(dip->label.name, AudioNmicrophone);
+ dip->un.v.num_channels = 1;
+ strcpy(dip->un.v.units.name, AudioNvolume);
+ break;
+ case SUNAUDIO_SPEAKER:
+ dip->type = AUDIO_MIXER_VALUE;
+ dip->mixer_class = SUNAUDIO_OUTPUT_CLASS;
+ dip->prev = dip->next = AUDIO_MIXER_LAST;
+ strcpy(dip->label.name, AudioNspeaker);
+ dip->un.v.num_channels = 1;
+ strcpy(dip->un.v.units.name, AudioNvolume);
+ break;
+ case SUNAUDIO_HEADPHONES:
+ dip->type = AUDIO_MIXER_VALUE;
+ dip->mixer_class = SUNAUDIO_OUTPUT_CLASS;
+ dip->prev = dip->next = AUDIO_MIXER_LAST;
+ strcpy(dip->label.name, AudioNheadphone);
+ dip->un.v.num_channels = 1;
+ strcpy(dip->un.v.units.name, AudioNvolume);
+ break;
+ case SUNAUDIO_MONITOR:
+ dip->type = AUDIO_MIXER_VALUE;
+ dip->mixer_class = SUNAUDIO_OUTPUT_CLASS;
+ dip->next = 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 SUNAUDIO_INPUT_CLASS:
+ dip->type = AUDIO_MIXER_CLASS;
+ dip->mixer_class = SUNAUDIO_INPUT_CLASS;
+ dip->next = dip->prev = AUDIO_MIXER_LAST;
+ strcpy(dip->label.name, AudioCInputs);
+ break;
+ case SUNAUDIO_OUTPUT_CLASS:
+ dip->type = AUDIO_MIXER_CLASS;
+ dip->mixer_class = SUNAUDIO_OUTPUT_CLASS;
+ dip->next = dip->prev = AUDIO_MIXER_LAST;
+ strcpy(dip->label.name, AudioCOutputs);
+ break;
+ default:
+ return ENXIO;
+ /*NOTREACHED*/
+ }
+
+ DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
+
+ return(0);
+}
+
+#ifdef AUDIO_C_HANDLER
+int
+amd7930hwintr(au0)
+ void *au0;
+{
+ register struct auio *au = au0;
+ register volatile struct amd7930 *amd = au->au_amd;
+ register u_char *d, *e;
+ register int k;
+
+ k = amd->ir; /* clear interrupt */
+
+ /* receive incoming data */
+ d = au->au_rdata;
+ e = au->au_rend;
+ if (d && d <= e) {
+ *d = amd->bbrb;
+ au->au_rdata++;
+ if (d == e) {
+#ifdef DEBUG
+ if (amd7930debug > 1)
+ Dprintf("amd7930hwintr: swintr(r) requested");
+#endif
+ AUDIO_SET_SWINTR;
+ }
+ }
+
+ /* send outgoing data */
+ d = au->au_pdata;
+ e = au->au_pend;
+ if (d && d <= e) {
+ amd->bbtb = *d;
+ au->au_pdata++;
+ if (d == e) {
+#ifdef DEBUG
+ if (amd7930debug > 1)
+ Dprintf("amd7930hwintr: swintr(p) requested");
+#endif
+ AUDIO_SET_SWINTR;
+ }
+ }
+
+ return (1);
+}
+#endif /* AUDIO_C_HANDLER */
+
+int
+amd7930swintr(sc0)
+ void *sc0;
+{
+ register struct amd7930_softc *sc = sc0;
+ register struct auio *au;
+ register int s, ret = 0;
+
+#ifdef DEBUG
+ if (amd7930debug > 1)
+ Dprintf("audiointr: sc=0x%x\n",sc);
+#endif
+
+ au = &sc->sc_au;
+ s = splaudio();
+ if (au->au_rdata > au->au_rend && sc->sc_rintr != NULL) {
+ splx(s);
+ ret = 1;
+ (*sc->sc_rintr)(sc->sc_rarg);
+ s = splaudio();
+ }
+ if (au->au_pdata > au->au_pend && sc->sc_pintr != NULL) {
+ splx(s);
+ ret = 1;
+ (*sc->sc_pintr)(sc->sc_parg);
+ } else
+ splx(s);
+ return (ret);
+}
+#endif /* NAUDIO > 0 */
diff --git a/sys/dev/ic/am7930var.h b/sys/dev/ic/am7930var.h
new file mode 100644
index 00000000000..b06e870bbd4
--- /dev/null
+++ b/sys/dev/ic/am7930var.h
@@ -0,0 +1,82 @@
+/* $NetBSD: am7930var.h,v 1.1 1995/04/25 20:05:38 pk Exp $ */
+
+/*
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Lawrence Berkeley Laboratory.
+ *
+ * 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 University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 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.
+ *
+ * @(#)bsd_audiovar.h 8.1 (Berkeley) 6/11/93
+ */
+
+#ifndef LOCORE
+
+/* XXX I think these defines should go into some other header file */
+#define SUNAUDIO_MIC_PORT 0
+#define SUNAUDIO_SPEAKER 1
+#define SUNAUDIO_HEADPHONES 2
+#define SUNAUDIO_MONITOR 3
+#define SUNAUDIO_INPUT_CLASS 4
+#define SUNAUDIO_OUTPUT_CLASS 5
+
+struct auio {
+ volatile struct amd7930 *au_amd;/* chip registers */
+
+ u_char *au_rdata; /* record data */
+ u_char *au_rend; /* end of record data */
+ u_char *au_pdata; /* play data */
+ u_char *au_pend; /* end of play data */
+};
+
+/*
+ * Chip interface
+ */
+struct mapreg {
+ u_short mr_x[8];
+ u_short mr_r[8];
+ u_short mr_gx;
+ u_short mr_gr;
+ u_short mr_ger;
+ u_short mr_stgr;
+ u_short mr_ftgr;
+ u_short mr_atgr;
+ u_char mr_mmr1;
+ u_char mr_mmr2;
+};
+
+#endif /* !LOCORE */