endif
# must use static linking to avoid leaving stuff in virtual address space
-VL_OBJS=vl.o block.o ide.o vga.o
+VL_OBJS=vl.o block.o ide.o vga.o sb16.o dma.o oss.o
ifdef CONFIG_SDL
VL_OBJS+=sdl.o
SDL_LIBS+=-L/usr/X11R6/lib -lX11 -lXext -lXv -ldl -lm
--- /dev/null
+/*
+ * QEMU DMA emulation
+ *
+ * Copyright (c) 2003 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 <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+#include "vl.h"
+#include "cpu.h"
+
+#define log(...) fprintf (stderr, "dma: " __VA_ARGS__)
+#ifdef DEBUG_DMA
+#define lwarn(...) fprintf (stderr, "dma: " __VA_ARGS__)
+#define linfo(...) fprintf (stderr, "dma: " __VA_ARGS__)
+#define ldebug(...) fprintf (stderr, "dma: " __VA_ARGS__)
+#else
+#define lwarn(...)
+#define linfo(...)
+#define ldebug(...)
+#endif
+
+#define MEM_REAL(addr) ((addr)+(uint32_t)(phys_ram_base))
+#define LENOFA(a) ((int) (sizeof(a)/sizeof(a[0])))
+
+struct dma_regs {
+ int now[2];
+ uint16_t base[2];
+ uint8_t mode;
+ uint8_t page;
+ uint8_t dack;
+ uint8_t eop;
+ DMA_read_handler read_handler;
+ DMA_misc_handler misc_handler;
+};
+
+#define ADDR 0
+#define COUNT 1
+
+static struct dma_cont {
+ uint8_t status;
+ uint8_t command;
+ uint8_t mask;
+ uint8_t flip_flop;
+ struct dma_regs regs[4];
+} dma_controllers[2];
+
+enum {
+ CMD_MEMORY_TO_MEMORY = 0x01,
+ CMD_FIXED_ADDRESS = 0x02,
+ CMD_BLOCK_CONTROLLER = 0x04,
+ CMD_COMPRESSED_TIME = 0x08,
+ CMD_CYCLIC_PRIORITY = 0x10,
+ CMD_EXTENDED_WRITE = 0x20,
+ CMD_LOW_DREQ = 0x40,
+ CMD_LOW_DACK = 0x80,
+ CMD_NOT_SUPPORTED = CMD_MEMORY_TO_MEMORY | CMD_FIXED_ADDRESS
+ | CMD_COMPRESSED_TIME | CMD_CYCLIC_PRIORITY | CMD_EXTENDED_WRITE
+ | CMD_LOW_DREQ | CMD_LOW_DACK
+
+};
+
+static void write_page (struct CPUX86State *env, uint32_t nport, uint32_t data)
+{
+ int ichan;
+ int ncont;
+ static int channels[8] = {-1, 2, 3, 1, -1, -1, -1, 0};
+
+ ncont = nport > 0x87;
+ ichan = channels[nport - 0x80 - (ncont << 3)];
+
+ if (-1 == ichan) {
+ log ("invalid channel %#x %#x\n", nport, data);
+ return;
+ }
+
+ dma_controllers[ncont].regs[ichan].page = data;
+}
+
+static void init_chan (int ncont, int ichan)
+{
+ struct dma_regs *r;
+
+ r = dma_controllers[ncont].regs + ichan;
+ r->now[ADDR] = r->base[0] << ncont;
+ r->now[COUNT] = 0;
+}
+
+static inline int getff (int ncont)
+{
+ int ff;
+
+ ff = dma_controllers[ncont].flip_flop;
+ dma_controllers[ncont].flip_flop = !ff;
+ return ff;
+}
+
+static uint32_t read_chan (struct CPUX86State *env, uint32_t nport)
+{
+ int ff;
+ int ncont, ichan, nreg;
+ struct dma_regs *r;
+ int val;
+
+ ncont = nport > 7;
+ ichan = (nport >> (1 + ncont)) & 3;
+ nreg = (nport >> ncont) & 1;
+ r = dma_controllers[ncont].regs + ichan;
+
+ ff = getff (ncont);
+
+ if (nreg)
+ val = (r->base[COUNT] << ncont) - r->now[COUNT];
+ else
+ val = r->now[ADDR] + r->now[COUNT];
+
+ return (val >> (ncont + (ff << 3))) & 0xff;
+}
+
+static void write_chan (uint32_t nport, int size, uint32_t data)
+{
+ int ncont, ichan, nreg;
+ struct dma_regs *r;
+
+ ncont = nport > 7;
+ ichan = (nport >> (1 + ncont)) & 3;
+ nreg = (nport >> ncont) & 1;
+ r = dma_controllers[ncont].regs + ichan;
+
+ if (2 == size) {
+ r->base[nreg] = data;
+ init_chan (ncont, ichan);
+ }
+ else {
+ if (getff (ncont)) {
+ r->base[nreg] = (r->base[nreg] & 0xff) | ((data << 8) & 0xff00);
+ init_chan (ncont, ichan);
+ }
+ else {
+ r->base[nreg] = (r->base[nreg] & 0xff00) | (data & 0xff);
+ }
+ }
+}
+static void write_chanb (struct CPUX86State *env, uint32_t nport, uint32_t data)
+{
+ write_chan (nport, 1, data);
+}
+
+static void write_chanw (struct CPUX86State *env, uint32_t nport, uint32_t data)
+{
+ write_chan (nport, 2, data);
+}
+
+static void write_cont (struct CPUX86State *env, uint32_t nport, uint32_t data)
+{
+ int iport, ichan, ncont;
+ struct dma_cont *d;
+
+ ncont = nport > 0xf;
+ ichan = -1;
+
+ d = dma_controllers + ncont;
+ if (ncont) {
+ iport = ((nport - 0xd0) >> 1) + 8;
+ }
+ else {
+ iport = nport;
+ }
+
+ switch (iport) {
+ case 8: /* command */
+ if (data && (data | CMD_NOT_SUPPORTED)) {
+ log ("command %#x not supported\n", data);
+ goto error;
+ }
+ d->command = data;
+ break;
+
+ case 9:
+ ichan = data & 3;
+ if (data & 4) {
+ d->status |= 1 << (ichan + 4);
+ }
+ else {
+ d->status &= ~(1 << (ichan + 4));
+ }
+ d->status &= ~(1 << ichan);
+ break;
+
+ case 0xa: /* single mask */
+ if (data & 4)
+ d->mask |= 1 << (data & 3);
+ else
+ d->mask &= ~(1 << (data & 3));
+ break;
+
+ case 0xb: /* mode */
+ {
+#ifdef DMA_DEBUG
+ int op;
+ int ai;
+ int dir;
+ int opmode;
+
+ ichan = val & 3;
+ op = (val >> 2) & 3;
+ ai = (val >> 4) & 1;
+ dir = (val >> 5) & 1;
+ opmode = (val >> 6) & 3;
+
+ linfo ("ichan %d, op %d, ai %d, dir %d, opmode %d\n",
+ ichan, op, ai, dir, opmode);
+#endif
+
+ d->regs[ichan].mode = data;
+ break;
+ }
+
+ case 0xc: /* clear flip flop */
+ d->flip_flop = 0;
+ break;
+
+ case 0xd: /* reset */
+ d->flip_flop = 0;
+ d->mask = ~0;
+ d->status = 0;
+ d->command = 0;
+ break;
+
+ case 0xe: /* clear mask for all channels */
+ d->mask = 0;
+ break;
+
+ case 0xf: /* write mask for all channels */
+ d->mask = data;
+ break;
+
+ default:
+ log ("dma: unknown iport %#x\n", iport);
+ goto error;
+ }
+
+#ifdef DMA_DEBUG
+ if (0xc != iport) {
+ linfo ("nport %#06x, ncont %d, ichan % 2d, val %#06x\n",
+ nport, d != dma_controllers, ichan, data);
+ }
+#endif
+ return;
+
+ error:
+ abort ();
+}
+
+int DMA_get_channel_mode (int nchan)
+{
+ return dma_controllers[nchan > 3].regs[nchan & 3].mode;
+}
+
+void DMA_hold_DREQ (int nchan)
+{
+ int ncont, ichan;
+
+ ncont = nchan > 3;
+ ichan = nchan & 3;
+ linfo ("held cont=%d chan=%d\n", ncont, ichan);
+ dma_controllers[ncont].status |= 1 << (ichan + 4);
+}
+
+void DMA_release_DREQ (int nchan)
+{
+ int ncont, ichan;
+
+ ncont = nchan > 3;
+ ichan = nchan & 3;
+ linfo ("released cont=%d chan=%d\n", ncont, ichan);
+ dma_controllers[ncont].status &= ~(1 << (ichan + 4));
+}
+
+static void channel_run (int ncont, int ichan)
+{
+ struct dma_regs *r;
+ int n;
+ int irq;
+ uint32_t addr;
+/* int ai, dir; */
+
+ r = dma_controllers[ncont].regs + ichan;
+/* ai = r->mode & 16; */
+/* dir = r->mode & 32 ? -1 : 1; */
+
+ addr = MEM_REAL ((r->page << 16) | r->now[ADDR]);
+
+ irq = -1;
+ n = r->read_handler (addr, (r->base[COUNT] << ncont) + (1 << ncont), &irq);
+ r->now[COUNT] = n;
+
+ ldebug ("dma_pos %d irq %d size %d\n",
+ n, irq, (r->base[1] << ncont) + (1 << ncont));
+
+ if (-1 != irq) {
+ pic_set_irq (irq, 1);
+ }
+}
+
+void DMA_run (void)
+{
+ static int in_dma;
+ struct dma_cont *d;
+ int icont, ichan;
+
+ if (in_dma) {
+ log ("attempt to re-enter dma\n");
+ return;
+ }
+
+ in_dma = 1;
+ d = dma_controllers;
+
+ for (icont = 0; icont < 2; icont++, d++) {
+ for (ichan = 0; ichan < 4; ichan++) {
+ int mask;
+
+ mask = 1 << ichan;
+
+ if ((0 == (d->mask & mask)) && (0 != (d->status & (mask << 4))))
+ channel_run (icont, ichan);
+ }
+ }
+ in_dma = 0;
+}
+
+void DMA_register_channel (int nchan,
+ DMA_read_handler read_handler,
+ DMA_misc_handler misc_handler)
+{
+ struct dma_regs *r;
+ int ichan, ncont;
+
+ ncont = nchan > 3;
+ ichan = nchan & 3;
+
+ r = dma_controllers[ncont].regs + ichan;
+ r->read_handler = read_handler;
+ r->misc_handler = misc_handler;
+}
+
+void DMA_init (void)
+{
+ int i;
+ int page_port_list[] = { 0x1, 0x2, 0x3, 0x7 };
+
+ for (i = 0; i < 8; i++) {
+ register_ioport_write (i, 1, write_chanb, 1);
+ register_ioport_write (i, 1, write_chanw, 2);
+
+ register_ioport_write (0xc0 + (i << 1), 1, write_chanb, 1);
+ register_ioport_write (0xc0 + (i << 1), 1, write_chanw, 2);
+
+ register_ioport_read (i, 1, read_chan, 1);
+ register_ioport_read (0xc0 + (i << 1), 1, read_chan, 2);
+ }
+
+ for (i = 0; i < LENOFA (page_port_list); i++) {
+ register_ioport_write (page_port_list[i] + 0x80, 1, write_page, 1);
+ register_ioport_write (page_port_list[i] + 0x88, 1, write_page, 1);
+ }
+
+ for (i = 0; i < 8; i++) {
+ register_ioport_write (i + 8, 1, write_cont, 1);
+ register_ioport_write (0xd0 + (i << 1), 1, write_cont, 1);
+ }
+
+ write_cont (NULL, 0xd, 0);
+ write_cont (NULL, 0xdd, 0);
+}
--- /dev/null
+/*
+ * QEMU Soundblaster 16 emulation
+ *
+ * Copyright (c) 2003 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 <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+#include "vl.h"
+
+#define MIN(a, b) ((a)>(b)?(b):(a))
+#define LENOFA(a) ((int) (sizeof(a)/sizeof(a[0])))
+
+#define DEREF(x) (void)x
+#define log(...) fprintf (stderr, "sb16: " __VA_ARGS__)
+#define Fail(...) do { \
+ fprintf (stderr, "sb16: " __VA_ARGS__); \
+ abort (); \
+} while (0)
+
+#ifdef DEBUG_SB16
+#define lwarn(...) fprintf (stderr, "sb16: " __VA_ARGS__)
+#define linfo(...) fprintf (stderr, "sb16: " __VA_ARGS__)
+#define ldebug(...) fprintf (stderr, "sb16: " __VA_ARGS__)
+#else
+#define lwarn(...)
+#define linfo(...)
+#define ldebug(...)
+#endif
+
+#define IO_READ_PROTO(name) \
+ uint32_t name (struct CPUX86State *env, uint32_t nport)
+#define IO_WRITE_PROTO(name) \
+ void name (struct CPUX86State *env, uint32_t nport, uint32_t val)
+
+static struct {
+ int ver_lo;
+ int ver_hi;
+ int irq;
+ int dma;
+ int hdma;
+ int port;
+ int mix_block;
+} sb = {4, 5, 5, 1, 5, 0x220, -1};
+
+static int mix_block, noirq;
+
+static struct mixer {
+ int nreg;
+ uint8_t regs[0x83];
+} mixer;
+
+static struct dsp {
+ int in_index;
+ int out_data_len;
+ int fmt_stereo;
+ int fmt_signed;
+ int fmt_bits;
+ int dma_auto;
+ int dma_buffer_size;
+ int fifo;
+ int freq;
+ int time_const;
+ int speaker;
+ int needed_bytes;
+ int cmd;
+ int dma_pos;
+ int use_hdma;
+
+ int v2x6;
+
+ uint8_t in_data[10];
+ uint8_t out_data[10];
+
+ int left_till_irq;
+} dsp;
+
+#define nocmd ~0
+
+static void log_dsp (const char *cap)
+{
+ DEREF (cap);
+
+ linfo ("%c:%c:%d:%c:dmabuf=%d:pos=%d:freq=%d:timeconst=%d:speaker=%d\n",
+ dsp.fmt_stereo ? 'S' : 'M',
+ dsp.fmt_signed ? 'S' : 'U',
+ dsp.fmt_bits,
+ dsp.dma_auto ? 'a' : 's',
+ dsp.dma_buffer_size,
+ dsp.dma_pos,
+ dsp.freq,
+ dsp.time_const,
+ dsp.speaker);
+}
+
+static void control (int hold)
+{
+ linfo ("%d high %d\n", hold, dsp.use_hdma);
+ if (hold) {
+ if (dsp.use_hdma)
+ DMA_hold_DREQ (sb.hdma);
+ else
+ DMA_hold_DREQ (sb.dma);
+ }
+ else {
+ if (dsp.use_hdma)
+ DMA_release_DREQ (sb.hdma);
+ else
+ DMA_release_DREQ (sb.dma);
+ }
+}
+
+static void dma_cmd (uint8_t cmd, uint8_t d0, int dma_len)
+{
+ int bps;
+ audfmt_e fmt;
+
+ dsp.use_hdma = cmd < 0xc0;
+ dsp.fifo = (cmd >> 1) & 1;
+ dsp.dma_auto = (cmd >> 2) & 1;
+
+ switch (cmd >> 4) {
+ case 11:
+ dsp.fmt_bits = 16;
+ break;
+
+ case 12:
+ dsp.fmt_bits = 8;
+ break;
+ }
+
+ dsp.fmt_signed = (d0 >> 4) & 1;
+ dsp.fmt_stereo = (d0 >> 5) & 1;
+
+ if (-1 != dsp.time_const) {
+ int tmp;
+
+ tmp = 256 - dsp.time_const;
+ dsp.freq = (1000000 + (tmp / 2)) / tmp;
+ }
+ bps = 1 << (16 == dsp.fmt_bits);
+
+ if (-1 != dma_len)
+ dsp.dma_buffer_size = (dma_len + 1) * bps;
+
+ linfo ("frequency %d, stereo %d, signed %d, bits %d, size %d, auto %d\n",
+ dsp.freq, dsp.fmt_stereo, dsp.fmt_signed, dsp.fmt_bits,
+ dsp.dma_buffer_size, dsp.dma_auto);
+
+ if (16 == dsp.fmt_bits) {
+ if (dsp.fmt_signed) {
+ fmt = AUD_FMT_S16;
+ }
+ else {
+ fmt = AUD_FMT_U16;
+ }
+ }
+ else {
+ if (dsp.fmt_signed) {
+ fmt = AUD_FMT_S8;
+ }
+ else {
+ fmt = AUD_FMT_U8;
+ }
+ }
+
+ dsp.dma_pos = 0;
+ dsp.left_till_irq = dsp.dma_buffer_size;
+
+ if (sb.mix_block) {
+ mix_block = sb.mix_block;
+ }
+ else {
+ int align;
+
+ align = bps << dsp.fmt_stereo;
+ mix_block = ((dsp.freq * align) / 100) & ~(align - 1);
+ }
+
+ AUD_reset (dsp.freq, 1 << dsp.fmt_stereo, fmt);
+ control (1);
+ dsp.speaker = 1;
+}
+
+static void command (uint8_t cmd)
+{
+ char *msg;
+
+ msg = (char *)-1;
+
+ linfo ("%#x\n", cmd);
+
+ if (cmd > 0xaf && cmd < 0xd0) {
+ if (cmd & 8)
+ goto error;
+
+ switch (cmd >> 4) {
+ case 11:
+ case 12:
+ break;
+ default:
+ msg = "wrong bits";
+ goto error;
+ }
+ dsp.needed_bytes = 3;
+ }
+ else {
+ switch (cmd) {
+ case 0x10:
+ dsp.needed_bytes = 1;
+ break;
+
+ case 0x14:
+ dsp.needed_bytes = 2;
+ dsp.dma_buffer_size = 0;
+ break;
+
+ case 0x20:
+ dsp.out_data[dsp.out_data_len++] = 0xff;
+ break;
+
+ case 0x35:
+ lwarn ("MIDI commands not implemented\n");
+ break;
+
+ case 0x40:
+ dsp.freq = -1;
+ dsp.time_const = -1;
+ dsp.needed_bytes = 1;
+ break;
+
+ case 0x41:
+ case 0x42:
+ dsp.freq = -1;
+ dsp.time_const = -1;
+ dsp.needed_bytes = 2;
+ break;
+
+ case 0x47: /* Continue Auto-Initialize DMA 16bit */
+ break;
+
+ case 0x48:
+ dsp.needed_bytes = 2;
+ break;
+
+ case 0x27: /* ????????? */
+ case 0x4e:
+ return;
+
+ case 0x80:
+ cmd = nocmd;
+ break;
+
+ case 0x90:
+ case 0x91:
+ {
+ uint8_t d0;
+
+ d0 = 4;
+ if (dsp.fmt_signed) d0 |= 16;
+ if (dsp.fmt_stereo) d0 |= 32;
+ dma_cmd (cmd == 0x90 ? 0xc4 : 0xc0, d0, -1);
+ cmd = nocmd;
+ break;
+ }
+
+ case 0xd0: /* XXX */
+ control (0);
+ return;
+
+ case 0xd1:
+ dsp.speaker = 1;
+ break;
+
+ case 0xd3:
+ dsp.speaker = 0;
+ return;
+
+ case 0xd4:
+ control (1);
+ break;
+
+ case 0xd5:
+ control (0);
+ break;
+
+ case 0xd6:
+ control (1);
+ break;
+
+ case 0xd9:
+ control (0);
+ dsp.dma_auto = 0;
+ return;
+
+ case 0xda:
+ control (0);
+ dsp.dma_auto = 0;
+ break;
+
+ case 0xe0:
+ dsp.needed_bytes = 1;
+ break;
+
+ case 0xe1:
+ dsp.out_data[dsp.out_data_len++] = sb.ver_lo;
+ dsp.out_data[dsp.out_data_len++] = sb.ver_hi;
+ return;
+
+ case 0xf2:
+ dsp.out_data[dsp.out_data_len++] = 0xaa;
+ mixer.regs[0x82] |= 1;
+ pic_set_irq (sb.irq, 1);
+ return;
+
+ default:
+ msg = "is unknown";
+ goto error;
+ }
+ }
+ dsp.cmd = cmd;
+ return;
+
+ error:
+ Fail ("%#x %s", cmd, msg);
+ return;
+}
+
+static void complete (void)
+{
+ linfo ("complete command %#x, in_index %d, needed_bytes %d\n",
+ dsp.cmd, dsp.in_index, dsp.needed_bytes);
+
+ if (dsp.cmd > 0xaf && dsp.cmd < 0xd0) {
+ int d0, d1, d2;
+
+ d0 = dsp.in_data[0];
+ d1 = dsp.in_data[1];
+ d2 = dsp.in_data[2];
+
+ ldebug ("d0 = %d, d1 = %d, d2 = %d\n",
+ d0, d1, d2);
+ dma_cmd (dsp.cmd, d0, d1 + (d2 << 8));
+ }
+ else {
+ switch (dsp.cmd) {
+
+ case 0x10:
+ break;
+
+ case 0x14:
+ {
+ int d0, d1;
+ int save_left;
+ int save_pos;
+
+ d0 = dsp.in_data[0];
+ d1 = dsp.in_data[1];
+
+ save_left = dsp.left_till_irq;
+ save_pos = dsp.dma_pos;
+ dma_cmd (0xc0, 0, d0 + (d1 << 8));
+ dsp.left_till_irq = save_left;
+ dsp.dma_pos = save_pos;
+
+ linfo ("set buffer size data[%d, %d] %d pos %d\n",
+ d0, d1, dsp.dma_buffer_size, dsp.dma_pos);
+ break;
+ }
+
+ case 0x40:
+ dsp.time_const = dsp.in_data[0];
+ linfo ("set time const %d\n", dsp.time_const);
+ break;
+
+ case 0x41:
+ case 0x42:
+ dsp.freq = dsp.in_data[1] + (dsp.in_data[0] << 8);
+ linfo ("set freq %#x, %#x = %d\n",
+ dsp.in_data[1], dsp.in_data[0], dsp.freq);
+ break;
+
+ case 0x48:
+ dsp.dma_buffer_size = dsp.in_data[1] + (dsp.in_data[0] << 8);
+ linfo ("set dma len %#x, %#x = %d\n",
+ dsp.in_data[1], dsp.in_data[0], dsp.dma_buffer_size);
+ break;
+
+ case 0xe0:
+ dsp.out_data_len = 1;
+ linfo ("data = %#x\n", dsp.in_data[0]);
+ dsp.out_data[0] = dsp.in_data[0] ^ 0xff;
+ break;
+
+ default:
+ goto error;
+ }
+ }
+
+ dsp.cmd = -1;
+ return;
+
+ error:
+ Fail ("unrecognized command %#x", dsp.cmd);
+}
+
+static IO_WRITE_PROTO (dsp_write)
+{
+ int iport;
+
+ iport = nport - sb.port;
+
+ switch (iport) {
+ case 0x6:
+ if (0 == val)
+ dsp.v2x6 = 0;
+ else if ((1 == val) && (0 == dsp.v2x6)) {
+ dsp.v2x6 = 1;
+ dsp.out_data[dsp.out_data_len++] = 0xaa;
+ }
+ else
+ dsp.v2x6 = ~0;
+ break;
+
+ case 0xc: /* write data or command | write status */
+ if (0 == dsp.needed_bytes) {
+ command (val);
+ if (0 == dsp.needed_bytes) {
+ log_dsp (__func__);
+ }
+ }
+ else {
+ dsp.in_data[dsp.in_index++] = val;
+ if (dsp.in_index == dsp.needed_bytes) {
+ dsp.needed_bytes = 0;
+ dsp.in_index = 0;
+ complete ();
+ log_dsp (__func__);
+ }
+ }
+ break;
+
+ default:
+ Fail ("(nport=%#x, val=%#x)", nport, val);
+ }
+}
+
+static IO_READ_PROTO (dsp_read)
+{
+ char *msg;
+ int iport, retval;
+
+ msg = (char *) -1;
+ iport = nport - sb.port;
+
+ switch (iport) {
+
+ case 0x6: /* reset */
+ return 0;
+
+ case 0xa: /* read data */
+ if (dsp.out_data_len) {
+ retval = dsp.out_data[--dsp.out_data_len];
+ }
+ else {
+#if 1
+ lwarn ("empty output buffer\n");
+ retval = 0;
+#else
+ msg = "empty output buffer";
+ goto error;
+#endif
+ }
+ break;
+
+ case 0xc: /* 0 can write */
+ retval = 0;
+ break;
+
+ case 0xd: /* timer interrupt clear */
+ goto error;
+
+ case 0xe: /* data available status | irq 8 ack */
+ retval = (0 == dsp.out_data_len) ? 0 : 0x80;
+ break;
+
+ case 0xf: /* irq 16 ack */
+ retval = 0xff;
+ mixer.regs[0x82] &= ~2;
+ ldebug ("16 ack\n");
+ break;
+
+ default:
+ goto error;
+ }
+
+ if ((0xc != iport) && (0xe != iport)) {
+ ldebug ("(nport=%#x, size=%d) iport %#x = %#x\n",
+ nport, size, iport, retval);
+ }
+
+ return retval;
+
+ error:
+ Fail ("(nport=%#x) %s", nport, msg);
+}
+
+static IO_WRITE_PROTO(mixer_write_indexb)
+{
+ mixer.nreg = val & 0xff;
+}
+
+static IO_WRITE_PROTO(mixer_write_datab)
+{
+ mixer.regs[mixer.nreg] = val;
+}
+
+static IO_WRITE_PROTO(mixer_write_indexw)
+{
+ mixer_write_indexb (env, nport, val & 0xff);
+ mixer_write_datab (env, nport, (val >> 8) & 0xff);
+}
+
+static IO_READ_PROTO(mixer_read)
+{
+ return mixer.regs[mixer.nreg];
+}
+
+void SB16_run (void)
+{
+ if (0 == dsp.speaker)
+ return;
+
+ AUD_run ();
+}
+
+static int write_audio (uint32_t addr, int len, int size)
+{
+ int temp, net;
+
+ temp = size;
+
+ net = 0;
+
+ while (temp) {
+ int left_till_end;
+ int to_copy;
+ int copied;
+
+ left_till_end = len - dsp.dma_pos;
+
+ to_copy = MIN (temp, left_till_end);
+
+ copied = AUD_write ((void *) (addr + dsp.dma_pos), to_copy);
+
+ temp -= copied;
+ dsp.dma_pos += copied;
+
+ if (dsp.dma_pos == len) {
+ dsp.dma_pos = 0;
+ }
+
+ net += copied;
+
+ if (copied != to_copy)
+ return net;
+ }
+
+ return net;
+}
+
+static int SB_read_DMA (uint32_t addr, int size, int *_irq)
+{
+ int free, till, copy, written;
+
+ if (0 == dsp.speaker)
+ return 0;
+
+ if (dsp.left_till_irq < 0) {
+ dsp.left_till_irq += dsp.dma_buffer_size;
+ return dsp.dma_pos;
+ }
+
+ free = AUD_get_free ();
+
+ if ((free <= 0) || (0 == size)) {
+ return dsp.dma_pos;
+ }
+
+ if (mix_block > 0) {
+ copy = MIN (free, mix_block);
+ }
+ else {
+ copy = free;
+ }
+
+ till = dsp.left_till_irq;
+
+ ldebug ("addr:%#010x free:%d till:%d size:%d\n",
+ addr, free, till, size);
+/* linfo ("pos %d free %d size %d till %d copy %d auto %d noirq %d\n", */
+/* dsp.dma_pos, free, size, till, copy, dsp.dma_auto, noirq); */
+ if (till <= copy) {
+ if (0 == dsp.dma_auto) {
+ copy = till;
+ }
+ }
+
+ written = write_audio (addr, size, copy);
+ dsp.left_till_irq -= written;
+ AUD_adjust_estimate (free - written);
+
+ if (dsp.left_till_irq <= 0) {
+ mixer.regs[0x82] |= mixer.regs[0x80];
+ if (0 == noirq)
+ *_irq = sb.irq;
+
+ if (0 == dsp.dma_auto) {
+ control (0);
+ }
+ }
+
+ ldebug ("pos %5d free %5d size %5d till % 5d copy %5d dma size %5d\n",
+ dsp.dma_pos, free, size, dsp.left_till_irq, copy,
+ dsp.dma_buffer_size);
+
+ if (dsp.left_till_irq <= 0) {
+ dsp.left_till_irq += dsp.dma_buffer_size;
+ }
+
+ return dsp.dma_pos;
+}
+
+static int dma_misc_handler (int moo)
+{
+ return -1;
+}
+
+static int magic_of_irq (int irq)
+{
+ switch (irq) {
+ case 2:
+ return 1;
+ case 5:
+ return 2;
+ case 7:
+ return 4;
+ case 10:
+ return 8;
+ default:
+ log ("bad irq %d\n", irq);
+ return 2;
+ }
+}
+
+static int irq_of_magic (int magic)
+{
+ switch (magic) {
+ case 1:
+ return 2;
+ case 2:
+ return 5;
+ case 4:
+ return 7;
+ case 8:
+ return 10;
+ default:
+ log ("bad irq magic %d\n", magic);
+ return 2;
+ }
+}
+
+void SB16_init (void)
+{
+ int i;
+ static const uint8_t dsp_write_ports[] = {0x6, 0xc};
+ static const uint8_t dsp_read_ports[] = {0x6, 0xa, 0xc, 0xd, 0xe, 0xf};
+
+ mixer.regs[0x0e] = ~0;
+ mixer.regs[0x80] = magic_of_irq (sb.irq);
+ mixer.regs[0x81] = 0x20 | (sb.dma << 1);
+
+ DEREF (irq_of_magic);
+
+ for (i = 0x30; i < 0x48; i++) {
+ mixer.regs[i] = 0x20;
+ }
+
+ for (i = 0; i < LENOFA (dsp_write_ports); i++) {
+ register_ioport_write (sb.port + dsp_write_ports[i], 1, dsp_write, 1);
+ }
+
+ for (i = 0; i < LENOFA (dsp_read_ports); i++) {
+ register_ioport_read (sb.port + dsp_read_ports[i], 1, dsp_read, 1);
+ }
+
+ register_ioport_write (sb.port + 0x4, 1, mixer_write_indexb, 1);
+ register_ioport_write (sb.port + 0x4, 1, mixer_write_indexw, 2);
+ register_ioport_read (sb.port + 0x5, 1, mixer_read, 1);
+ register_ioport_write (sb.port + 0x5, 1, mixer_write_datab, 1);
+
+ DMA_register_channel (sb.hdma, SB_read_DMA, dma_misc_handler);
+ DMA_register_channel (sb.dma, SB_read_DMA, dma_misc_handler);
+}
--- /dev/null
+/*
+ * QEMU OSS Audio output driver
+ *
+ * Copyright (c) 2003 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 <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/soundcard.h>
+
+#include "vl.h"
+
+/* http://www.df.lth.se/~john_e/gems/gem002d.html */
+/* http://www.multi-platforms.com/Tips/PopCount.htm */
+static inline uint32_t popcount (uint32_t u)
+{
+ u = ((u&0x55555555) + ((u>>1)&0x55555555));
+ u = ((u&0x33333333) + ((u>>2)&0x33333333));
+ u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f));
+ u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff));
+ u = ( u&0x0000ffff) + (u>>16);
+ return u;
+}
+
+static inline uint32_t lsbindex (uint32_t u)
+{
+ return popcount ((u&-u)-1);
+}
+
+#define MIN(a, b) ((a)>(b)?(b):(a))
+#define MAX(a, b) ((a)<(b)?(b):(a))
+
+#define DEREF(x) (void)x
+#define log(...) fprintf (stderr, "oss: " __VA_ARGS__)
+#define ERRFail(...) do { \
+ int _errno = errno; \
+ fprintf (stderr, "oss: " __VA_ARGS__); \
+ fprintf (stderr, "system error: %s\n", strerror (_errno)); \
+ abort (); \
+} while (0)
+#define Fail(...) do { \
+ fprintf (stderr, "oss: " __VA_ARGS__); \
+ fprintf (stderr, "\n"); \
+ abort (); \
+} while (0)
+
+#ifdef DEBUG_OSS
+#define lwarn(...) fprintf (stderr, "oss: " __VA_ARGS__)
+#define linfo(...) fprintf (stderr, "oss: " __VA_ARGS__)
+#define ldebug(...) fprintf (stderr, "oss: " __VA_ARGS__)
+#else
+#define lwarn(...)
+#define linfo(...)
+#define ldebug(...)
+#endif
+
+
+#define IOCTL(args) do { \
+ int ret = ioctl args; \
+ if (-1 == ret) { \
+ ERRFail (#args); \
+ } \
+ ldebug ("ioctl " #args " = %d\n", ret); \
+} while (0)
+
+static int audio_fd = -1;
+static int freq;
+static int conf_nfrags = 4;
+static int conf_fragsize;
+static int nfrags;
+static int fragsize;
+static int bufsize;
+static int nchannels;
+static int fmt;
+static int rpos;
+static int wpos;
+static int atom;
+static int live;
+static int leftover;
+static int bytes_per_second;
+static void *buf;
+static enum {DONT, DSP, TID} estimate = TID;
+
+static void (*copy_fn)(void *, void *, int);
+
+static void copy_no_conversion (void *dst, void *src, int size)
+{
+ memcpy (dst, src, size);
+}
+
+static void copy_u16_to_s16 (void *dst, void *src, int size)
+{
+ int i;
+ uint16_t *out, *in;
+
+ out = dst;
+ in = src;
+
+ for (i = 0; i < size / 2; i++) {
+ out[i] = in[i] + 0x8000;
+ }
+}
+
+static void pab (struct audio_buf_info *abinfo)
+{
+ DEREF (abinfo);
+
+ ldebug ("fragments %d, fragstotal %d, fragsize %d, bytes %d\n"
+ "rpos %d, wpos %d, live %d\n",
+ abinfo->fragments,
+ abinfo->fragstotal,
+ abinfo->fragsize,
+ abinfo->bytes,
+ rpos, wpos, live);
+}
+
+void AUD_reset (int rfreq, int rnchannels, audfmt_e rfmt)
+{
+ int fmt_;
+ int bits16;
+
+ if (-1 == audio_fd) {
+ AUD_open (rfreq, rnchannels, rfmt);
+ return;
+ }
+
+ switch (rfmt) {
+ case AUD_FMT_U8:
+ bits16 = 0;
+ fmt_ = AFMT_U8;
+ copy_fn = copy_no_conversion;
+ atom = 1;
+ break;
+
+ case AUD_FMT_S8:
+ Fail ("can not play 8bit signed");
+
+ case AUD_FMT_S16:
+ bits16 = 1;
+ fmt_ = AFMT_S16_LE;
+ copy_fn = copy_no_conversion;
+ atom = 2;
+ break;
+
+ case AUD_FMT_U16:
+ bits16 = 1;
+ fmt_ = AFMT_S16_LE;
+ copy_fn = copy_u16_to_s16;
+ atom = 2;
+ break;
+
+ default:
+ abort ();
+ }
+
+ if ((fmt_ == fmt) && (bits16 + 1 == nchannels) && (rfreq == freq))
+ return;
+ else {
+ AUD_open (rfreq, rnchannels, rfmt);
+ }
+}
+
+void AUD_open (int rfreq, int rnchannels, audfmt_e rfmt)
+{
+ int fmt_;
+ int mmmmssss;
+ struct audio_buf_info abinfo;
+ int _fmt;
+ int _freq;
+ int _nchannels;
+ int bits16;
+
+ bits16 = 0;
+
+ switch (rfmt) {
+ case AUD_FMT_U8:
+ bits16 = 0;
+ fmt_ = AFMT_U8;
+ copy_fn = copy_no_conversion;
+ atom = 1;
+ break;
+
+ case AUD_FMT_S8:
+ Fail ("can not play 8bit signed");
+
+ case AUD_FMT_S16:
+ bits16 = 1;
+ fmt_ = AFMT_S16_LE;
+ copy_fn = copy_no_conversion;
+ atom = 2;
+ break;
+
+ case AUD_FMT_U16:
+ bits16 = 1;
+ fmt_ = AFMT_S16_LE;
+ copy_fn = copy_u16_to_s16;
+ atom = 2;
+ break;
+
+ default:
+ abort ();
+ }
+
+ if (buf) {
+ free (buf);
+ buf = 0;
+ }
+
+ if (-1 != audio_fd)
+ close (audio_fd);
+
+ audio_fd = open ("/dev/dsp", O_WRONLY | O_NONBLOCK);
+ if (-1 == audio_fd) {
+ ERRFail ("can not open /dev/dsp");
+ }
+
+ _fmt = fmt_;
+ _freq = rfreq;
+ _nchannels = rnchannels;
+
+ IOCTL ((audio_fd, SNDCTL_DSP_RESET, 1));
+ IOCTL ((audio_fd, SNDCTL_DSP_SAMPLESIZE, &_fmt));
+ IOCTL ((audio_fd, SNDCTL_DSP_CHANNELS, &_nchannels));
+ IOCTL ((audio_fd, SNDCTL_DSP_SPEED, &_freq));
+ IOCTL ((audio_fd, SNDCTL_DSP_NONBLOCK));
+
+ /* from oss.pdf:
+
+ The argument to this call is an integer encoded as 0xMMMMSSSS (in
+ hex). The 16 least significant bits determine the fragment
+ size. The size is 2^SSSS. For examp le SSSS=0008 gives fragment
+ size of 256 bytes (2^8). The minimum is 16 bytes (SSSS=4) and the
+ maximum is total_buffer_size/2. Some devices or processor
+ architectures may require larger fragments - in this case the
+ requested fragment size is automatically increased.
+
+ So ahem... 4096 = 2^12, and grand total 0x0004000c
+ */
+
+ mmmmssss = (conf_nfrags << 16) | conf_fragsize;
+ IOCTL ((audio_fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss));
+
+ linfo ("_fmt = %d, fmt = %d\n"
+ "_channels = %d, rnchannels = %d\n"
+ "_freq = %d, freq = %d\n",
+ _fmt, fmt_,
+ _nchannels, rnchannels,
+ _freq, rfreq);
+
+ if (_fmt != fmt_) {
+ Fail ("format %d != %d", _fmt, fmt_);
+ }
+
+ if (_nchannels != rnchannels) {
+ Fail ("channels %d != %d", _nchannels, rnchannels);
+ }
+
+ if (_freq != rfreq) {
+ Fail ("freq %d != %d", _freq, rfreq);
+ }
+
+ IOCTL ((audio_fd, SNDCTL_DSP_GETOSPACE, &abinfo));
+
+ nfrags = abinfo.fragstotal;
+ fragsize = abinfo.fragsize;
+ freq = _freq;
+ fmt = _fmt;
+ nchannels = rnchannels;
+ atom <<= nchannels >> 1;
+ bufsize = nfrags * fragsize;
+
+ bytes_per_second = (freq << (nchannels >> 1)) << bits16;
+
+ linfo ("bytes per second %d\n", bytes_per_second);
+
+ linfo ("fragments %d, fragstotal %d, fragsize %d, bytes %d, bufsize %d\n",
+ abinfo.fragments,
+ abinfo.fragstotal,
+ abinfo.fragsize,
+ abinfo.bytes,
+ bufsize);
+
+ if (NULL == buf) {
+ buf = malloc (bufsize);
+ if (NULL == buf) {
+ abort ();
+ }
+ }
+
+ rpos = 0;
+ wpos = 0;
+ live = 0;
+}
+
+int AUD_write (void *in_buf, int size)
+{
+ int to_copy, temp;
+ uint8_t *in, *out;
+
+ to_copy = MIN (bufsize - live, size);
+
+ temp = to_copy;
+
+ in = in_buf;
+ out = buf;
+
+ while (temp) {
+ int copy;
+
+ copy = MIN (temp, bufsize - wpos);
+ copy_fn (out + wpos, in, copy);
+
+ wpos += copy;
+ if (wpos == bufsize) {
+ wpos = 0;
+ }
+
+ temp -= copy;
+ in += copy;
+ live += copy;
+ }
+
+ return to_copy;
+}
+
+void AUD_run (void)
+{
+ int res;
+ int bytes;
+ struct audio_buf_info abinfo;
+
+ if (0 == live)
+ return;
+
+ res = ioctl (audio_fd, SNDCTL_DSP_GETOSPACE, &abinfo);
+
+ if (-1 == res) {
+ int err;
+
+ err = errno;
+ lwarn ("SNDCTL_DSP_GETOSPACE failed with %s\n", strerror (err));
+ }
+
+ bytes = abinfo.bytes;
+ bytes = MIN (live, bytes);
+#if 0
+ bytes = (bytes / fragsize) * fragsize;
+#endif
+
+ while (bytes) {
+ int left, play, written;
+
+ left = bufsize - rpos;
+ play = MIN (left, bytes);
+ written = write (audio_fd, (void *) ((uint32_t) buf + rpos), play);
+
+ if (-1 == written) {
+ if (EAGAIN == errno || EINTR == errno) {
+ return;
+ }
+ else {
+ ERRFail ("write audio");
+ }
+ }
+
+ play = written;
+ live -= play;
+ rpos += play;
+ bytes -= play;
+
+ if (rpos == bufsize) {
+ rpos = 0;
+ }
+ }
+}
+
+static int get_dsp_bytes (void)
+{
+ int res;
+ struct count_info info;
+
+ res = ioctl (audio_fd, SNDCTL_DSP_GETOPTR, &info);
+ if (-1 == res) {
+ int err;
+
+ err = errno;
+ lwarn ("SNDCTL_DSP_GETOPTR failed with %s\n", strerror (err));
+ return -1;
+ }
+ else {
+ ldebug ("bytes %d\n", info.bytes);
+ return info.bytes;
+ }
+}
+
+void AUD_adjust_estimate (int _leftover)
+{
+ leftover = _leftover;
+}
+
+int AUD_get_free (void)
+{
+ int free, elapsed;
+
+ free = bufsize - live;
+
+ if (0 == free)
+ return 0;
+
+ elapsed = free;
+ switch (estimate) {
+ case DONT:
+ break;
+
+ case DSP:
+ {
+ static int old_bytes;
+ int bytes;
+
+ bytes = get_dsp_bytes ();
+ if (bytes <= 0)
+ return free;
+
+ elapsed = bytes - old_bytes;
+ old_bytes = bytes;
+ ldebug ("dsp elapsed %d bytes\n", elapsed);
+ break;
+ }
+
+ case TID:
+ {
+ static uint64_t old_ticks;
+ uint64_t ticks, delta;
+ uint64_t ua_elapsed;
+ uint64_t al_elapsed;
+
+ ticks = cpu_get_ticks ();
+ delta = ticks - old_ticks;
+ old_ticks = ticks;
+
+ ua_elapsed = (delta * bytes_per_second) / ticks_per_sec;
+ al_elapsed = ua_elapsed & ~3ULL;
+
+ ldebug ("tid elapsed %llu bytes\n", ua_elapsed);
+
+ if (al_elapsed > (uint64_t) INT_MAX)
+ elapsed = INT_MAX;
+ else
+ elapsed = al_elapsed;
+
+ elapsed += leftover;
+ }
+ }
+
+ if (elapsed > free) {
+ lwarn ("audio can not keep up elapsed %d free %d\n", elapsed, free);
+ return free;
+ }
+ else {
+ return elapsed;
+ }
+}
+
+int AUD_get_live (void)
+{
+ return live;
+}
+
+int AUD_get_buffer_size (void)
+{
+ return bufsize;
+}
+
+void AUD_init (void)
+{
+ int fsp;
+ int _fragsize = 4096;
+
+ DEREF (pab);
+
+ fsp = _fragsize;
+ if (0 != (fsp & (fsp - 1))) {
+ Fail ("fragment size %d is not power of 2", fsp);
+ }
+
+ conf_fragsize = lsbindex (fsp);
+}
reset_requested = 1;
cpu_x86_interrupt(global_env, CPU_INTERRUPT_EXIT);
break;
+ case 0xff:
+ /* ignore that - I don't know what is its use */
+ break;
default:
fprintf(stderr, "qemu: unsupported keyboard cmd=0x%02x\n", val);
break;
gui_refresh_pending = 1;
}
+ /* XXX: seems dangerous to run that here. */
+ DMA_run();
+ SB16_run();
+
if (gui_refresh_pending || timer_irq_pending) {
/* just exit from the cpu to have a chance to handle timers */
cpu_x86_interrupt(global_env, CPU_INTERRUPT_EXIT);
"-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
"-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
"-cdrom file use 'file' as IDE cdrom 2 image\n"
- "-boot [c|d] boot on hard disk or CD-ROM\n"
+ "-boot [c|d] boot on hard disk (c) or CD-ROM (d)\n"
"-snapshot write to temporary files instead of disk image files\n"
"-m megs set virtual RAM size to megs MB\n"
"-n script set network init script [default=%s]\n"
ne2000_init();
ide_init();
kbd_init();
+ AUD_init();
+ DMA_init();
+ SB16_init();
/* setup cpu signal handlers for MMU / self modifying code handling */
sigfillset(&act.sa_mask);
/* vl.c */
struct CPUX86State;
extern int reset_requested;
+extern int64_t ticks_per_sec;
typedef void (IOPortWriteFunc)(struct CPUX86State *env, uint32_t address, uint32_t data);
typedef uint32_t (IOPortReadFunc)(struct CPUX86State *env, uint32_t address);
int register_ioport_read(int start, int length, IOPortReadFunc *func, int size);
int register_ioport_write(int start, int length, IOPortWriteFunc *func, int size);
void pic_set_irq(int irq, int level);
+int64_t cpu_get_ticks(void);
void kbd_put_keycode(int keycode);
void ide_set_geometry(int n, int cyls, int heads, int secs);
void ide_set_cdrom(int n, int is_cdrom);
+/* oss.c */
+typedef enum {
+ AUD_FMT_U8,
+ AUD_FMT_S8,
+ AUD_FMT_U16,
+ AUD_FMT_S16
+} audfmt_e;
+
+void AUD_open (int rfreq, int rnchannels, audfmt_e rfmt);
+void AUD_reset (int rfreq, int rnchannels, audfmt_e rfmt);
+int AUD_write (void *in_buf, int size);
+void AUD_run (void);
+void AUD_adjust_estimate (int _leftover);
+int AUD_get_free (void);
+int AUD_get_live (void);
+int AUD_get_buffer_size (void);
+void AUD_init (void);
+
+/* dma.c */
+typedef int (*DMA_read_handler) (uint32_t addr, int size, int *irq);
+typedef int (*DMA_misc_handler) (int);
+
+int DMA_get_channel_mode (int nchan);
+void DMA_hold_DREQ (int nchan);
+void DMA_release_DREQ (int nchan);
+void DMA_run (void);
+void DMA_init (void);
+void DMA_register_channel (int nchan,
+ DMA_read_handler read_handler,
+ DMA_misc_handler misc_handler);
+
+/* sb16.c */
+void SB16_run (void);
+void SB16_init (void);
+
#endif /* VL_H */
projects / qemu / commitdiff