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-rw-r--r--hw/gus.c332
1 files changed, 0 insertions, 332 deletions
diff --git a/hw/gus.c b/hw/gus.c
deleted file mode 100644
index d2682249ca..0000000000
--- a/hw/gus.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/*
- * QEMU Proxy for Gravis Ultrasound GF1 emulation by Tibor "TS" Schütz
- *
- * Copyright (c) 2002-2005 Vassili Karpov (malc)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "hw/hw.h"
-#include "hw/audiodev.h"
-#include "audio/audio.h"
-#include "hw/isa.h"
-#include "hw/gusemu.h"
-#include "hw/gustate.h"
-
-#define dolog(...) AUD_log ("audio", __VA_ARGS__)
-#ifdef DEBUG
-#define ldebug(...) dolog (__VA_ARGS__)
-#else
-#define ldebug(...)
-#endif
-
-#ifdef HOST_WORDS_BIGENDIAN
-#define GUS_ENDIANNESS 1
-#else
-#define GUS_ENDIANNESS 0
-#endif
-
-#define IO_READ_PROTO(name) \
- static uint32_t name (void *opaque, uint32_t nport)
-#define IO_WRITE_PROTO(name) \
- static void name (void *opaque, uint32_t nport, uint32_t val)
-
-typedef struct GUSState {
- ISADevice dev;
- GUSEmuState emu;
- QEMUSoundCard card;
- uint32_t freq;
- uint32_t port;
- int pos, left, shift, irqs;
- GUSsample *mixbuf;
- uint8_t himem[1024 * 1024 + 32 + 4096];
- int samples;
- SWVoiceOut *voice;
- int64_t last_ticks;
- qemu_irq pic;
-} GUSState;
-
-IO_READ_PROTO (gus_readb)
-{
- GUSState *s = opaque;
-
- return gus_read (&s->emu, nport, 1);
-}
-
-IO_READ_PROTO (gus_readw)
-{
- GUSState *s = opaque;
-
- return gus_read (&s->emu, nport, 2);
-}
-
-IO_WRITE_PROTO (gus_writeb)
-{
- GUSState *s = opaque;
-
- gus_write (&s->emu, nport, 1, val);
-}
-
-IO_WRITE_PROTO (gus_writew)
-{
- GUSState *s = opaque;
-
- gus_write (&s->emu, nport, 2, val);
-}
-
-static int write_audio (GUSState *s, int samples)
-{
- int net = 0;
- int pos = s->pos;
-
- while (samples) {
- int nbytes, wbytes, wsampl;
-
- nbytes = samples << s->shift;
- wbytes = AUD_write (
- s->voice,
- s->mixbuf + (pos << (s->shift - 1)),
- nbytes
- );
-
- if (wbytes) {
- wsampl = wbytes >> s->shift;
-
- samples -= wsampl;
- pos = (pos + wsampl) % s->samples;
-
- net += wsampl;
- }
- else {
- break;
- }
- }
-
- return net;
-}
-
-static void GUS_callback (void *opaque, int free)
-{
- int samples, to_play, net = 0;
- GUSState *s = opaque;
-
- samples = free >> s->shift;
- to_play = audio_MIN (samples, s->left);
-
- while (to_play) {
- int written = write_audio (s, to_play);
-
- if (!written) {
- goto reset;
- }
-
- s->left -= written;
- to_play -= written;
- samples -= written;
- net += written;
- }
-
- samples = audio_MIN (samples, s->samples);
- if (samples) {
- gus_mixvoices (&s->emu, s->freq, samples, s->mixbuf);
-
- while (samples) {
- int written = write_audio (s, samples);
- if (!written) {
- break;
- }
- samples -= written;
- net += written;
- }
- }
- s->left = samples;
-
- reset:
- gus_irqgen (&s->emu, muldiv64 (net, 1000000, s->freq));
-}
-
-int GUS_irqrequest (GUSEmuState *emu, int hwirq, int n)
-{
- GUSState *s = emu->opaque;
- /* qemu_irq_lower (s->pic); */
- qemu_irq_raise (s->pic);
- s->irqs += n;
- ldebug ("irqrequest %d %d %d\n", hwirq, n, s->irqs);
- return n;
-}
-
-void GUS_irqclear (GUSEmuState *emu, int hwirq)
-{
- GUSState *s = emu->opaque;
- ldebug ("irqclear %d %d\n", hwirq, s->irqs);
- qemu_irq_lower (s->pic);
- s->irqs -= 1;
-#ifdef IRQ_STORM
- if (s->irqs > 0) {
- qemu_irq_raise (s->pic[hwirq]);
- }
-#endif
-}
-
-void GUS_dmarequest (GUSEmuState *der)
-{
- /* GUSState *s = (GUSState *) der; */
- ldebug ("dma request %d\n", der->gusdma);
- DMA_hold_DREQ (der->gusdma);
-}
-
-static int GUS_read_DMA (void *opaque, int nchan, int dma_pos, int dma_len)
-{
- GUSState *s = opaque;
- char tmpbuf[4096];
- int pos = dma_pos, mode, left = dma_len - dma_pos;
-
- ldebug ("read DMA %#x %d\n", dma_pos, dma_len);
- mode = DMA_get_channel_mode (s->emu.gusdma);
- while (left) {
- int to_copy = audio_MIN ((size_t) left, sizeof (tmpbuf));
- int copied;
-
- ldebug ("left=%d to_copy=%d pos=%d\n", left, to_copy, pos);
- copied = DMA_read_memory (nchan, tmpbuf, pos, to_copy);
- gus_dma_transferdata (&s->emu, tmpbuf, copied, left == copied);
- left -= copied;
- pos += copied;
- }
-
- if (0 == ((mode >> 4) & 1)) {
- DMA_release_DREQ (s->emu.gusdma);
- }
- return dma_len;
-}
-
-static const VMStateDescription vmstate_gus = {
- .name = "gus",
- .version_id = 2,
- .minimum_version_id = 2,
- .minimum_version_id_old = 2,
- .fields = (VMStateField []) {
- VMSTATE_INT32 (pos, GUSState),
- VMSTATE_INT32 (left, GUSState),
- VMSTATE_INT32 (shift, GUSState),
- VMSTATE_INT32 (irqs, GUSState),
- VMSTATE_INT32 (samples, GUSState),
- VMSTATE_INT64 (last_ticks, GUSState),
- VMSTATE_BUFFER (himem, GUSState),
- VMSTATE_END_OF_LIST ()
- }
-};
-
-static const MemoryRegionPortio gus_portio_list1[] = {
- {0x000, 1, 1, .write = gus_writeb },
- {0x000, 1, 2, .write = gus_writew },
- {0x006, 10, 1, .read = gus_readb, .write = gus_writeb },
- {0x006, 10, 2, .read = gus_readw, .write = gus_writew },
- {0x100, 8, 1, .read = gus_readb, .write = gus_writeb },
- {0x100, 8, 2, .read = gus_readw, .write = gus_writew },
- PORTIO_END_OF_LIST (),
-};
-
-static const MemoryRegionPortio gus_portio_list2[] = {
- {0, 1, 1, .read = gus_readb },
- {0, 1, 2, .read = gus_readw },
- PORTIO_END_OF_LIST (),
-};
-
-static int gus_initfn (ISADevice *dev)
-{
- GUSState *s = DO_UPCAST (GUSState, dev, dev);
- struct audsettings as;
-
- AUD_register_card ("gus", &s->card);
-
- as.freq = s->freq;
- as.nchannels = 2;
- as.fmt = AUD_FMT_S16;
- as.endianness = GUS_ENDIANNESS;
-
- s->voice = AUD_open_out (
- &s->card,
- NULL,
- "gus",
- s,
- GUS_callback,
- &as
- );
-
- if (!s->voice) {
- AUD_remove_card (&s->card);
- return -1;
- }
-
- s->shift = 2;
- s->samples = AUD_get_buffer_size_out (s->voice) >> s->shift;
- s->mixbuf = g_malloc0 (s->samples << s->shift);
-
- isa_register_portio_list (dev, s->port, gus_portio_list1, s, "gus");
- isa_register_portio_list (dev, (s->port + 0x100) & 0xf00,
- gus_portio_list2, s, "gus");
-
- DMA_register_channel (s->emu.gusdma, GUS_read_DMA, s);
- s->emu.himemaddr = s->himem;
- s->emu.gusdatapos = s->emu.himemaddr + 1024 * 1024 + 32;
- s->emu.opaque = s;
- isa_init_irq (dev, &s->pic, s->emu.gusirq);
-
- AUD_set_active_out (s->voice, 1);
-
- return 0;
-}
-
-int GUS_init (ISABus *bus)
-{
- isa_create_simple (bus, "gus");
- return 0;
-}
-
-static Property gus_properties[] = {
- DEFINE_PROP_UINT32 ("freq", GUSState, freq, 44100),
- DEFINE_PROP_HEX32 ("iobase", GUSState, port, 0x240),
- DEFINE_PROP_UINT32 ("irq", GUSState, emu.gusirq, 7),
- DEFINE_PROP_UINT32 ("dma", GUSState, emu.gusdma, 3),
- DEFINE_PROP_END_OF_LIST (),
-};
-
-static void gus_class_initfn (ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS (klass);
- ISADeviceClass *ic = ISA_DEVICE_CLASS (klass);
- ic->init = gus_initfn;
- dc->desc = "Gravis Ultrasound GF1";
- dc->vmsd = &vmstate_gus;
- dc->props = gus_properties;
-}
-
-static const TypeInfo gus_info = {
- .name = "gus",
- .parent = TYPE_ISA_DEVICE,
- .instance_size = sizeof (GUSState),
- .class_init = gus_class_initfn,
-};
-
-static void gus_register_types (void)
-{
- type_register_static (&gus_info);
-}
-
-type_init (gus_register_types)
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-09 03:30:09 +0000