Added DMA and SoundBlaster emulation.
This commit is contained in:
Christian Costa
Alexandre Julliard
parent
a60d05b405
commit
53268a54d1
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@ -7,8 +7,9 @@ IMPORTS = user32 kernel32 ntdll
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LDIMPORTS = user32.dll kernel32.dll ntdll.dll
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LDIMPORTS = user32.dll kernel32.dll ntdll.dll
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C_SRCS = \
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C_SRCS = \
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dosaspi.c \
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devices.c \
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devices.c \
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dma.c \
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dosaspi.c \
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dosvm.c \
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dosvm.c \
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int09.c \
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int09.c \
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int10.c \
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int10.c \
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@ -23,6 +24,7 @@ C_SRCS = \
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int67.c \
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int67.c \
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ioports.c \
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ioports.c \
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module.c \
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module.c \
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soundblaster.c \
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vga.c \
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vga.c \
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xms.c
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xms.c
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@ -0,0 +1,381 @@
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/*
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* DMA Emulation
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*
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* Copyright 2002 Christian Costa
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "windef.h"
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#include "dosexe.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dma);
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/* Internal registers of the 2 DMA chips wich control 8 DMA channels */
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static DWORD DMA_BaseAddress[8];
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static WORD DMA_ByteCount[8];
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static DWORD DMA_CurrentBaseAddress[8];
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static WORD DMA_CurrentByteCount[8];
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static BYTE DMA_Command[8];
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static BYTE DMA_Mask[2]={0x0F,0x0F};
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static BYTE DMA_Status[2]={0x00,0x00};
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static BOOL DMA_Toggle[2]={FALSE,FALSE};
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/*
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* DMA_Transfer : Try to perform a transfer of reqlen elements (8 or 16 bits)
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* on the specified channel and return the elements transferred
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*/
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int DMA_Transfer(int channel,int reqlen,void* buffer)
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{
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int i,size,ret=0;
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int opmode,increment,autoinit,trmode,dmachip;
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int regmode = DMA_Command[channel];
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char *p,*dmabuf;
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dmabuf = buffer;
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dmachip = (channel<4) ? 0 : 1;
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TRACE("DMA_Command = %x reqlen=%d\n",regmode,reqlen);
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/* Exit if channel is masked */
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if (DMA_Mask[dmachip]&(1<<(channel&3)))
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return 0;
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opmode = (regmode & 0xC0) >> 6;
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increment = !(regmode & 0x20);
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autoinit = regmode & 0x10;
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trmode = (regmode & 0x0C) >> 2;
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/* Transfer size : 8 bits for channels 0..3, 16 bits for channels 4..7 */
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size = (channel<4) ? 1 : 2;
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/* Process operating mode */
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switch(opmode)
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{
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case 0:
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/* Request mode */
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FIXME("Request Mode - Not Implemented\n");
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return 0;
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case 1:
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/* Single Mode */
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break;
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case 2:
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/* Request mode */
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FIXME("Block Mode - Not Implemented\n");
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return 0;
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case 3:
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/* Cascade Mode */
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ERR("Cascade Mode should not be used by regular apps\n");
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return 0;
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}
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/* Perform one the 4 transfer modes */
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if (trmode == 4) {
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/* Illegal */
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ERR("DMA Transfer Type Illegal\n");
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return 0;
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}
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ret = min(DMA_CurrentByteCount[channel],reqlen);
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/* Update DMA registers */
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DMA_CurrentByteCount[channel]-=ret;
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if (increment)
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DMA_CurrentBaseAddress[channel] += ret * size;
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else
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DMA_CurrentBaseAddress[channel] -= ret * size;
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switch(trmode)
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{
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case 0:
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/* Verification (no real transfer)*/
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TRACE("Verification DMA operation\n");
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break;
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case 1:
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/* Write */
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TRACE("Perform Write transfer of %d bytes at %lx with count %x\n",ret,
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DMA_CurrentBaseAddress[channel],DMA_CurrentByteCount[channel]);
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if (increment)
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memcpy((void*)DMA_CurrentBaseAddress[channel],dmabuf,ret*size);
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else
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for(i=0,p=(char*)DMA_CurrentBaseAddress[channel];i<ret*size;i++)
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/* FIXME: possible endianness issue for 16 bits DMA */
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*(p-i) = dmabuf[i];
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break;
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case 2:
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/* Read */
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TRACE("Perform Read transfer of %d bytes at %lx with count %x\n",ret,
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DMA_CurrentBaseAddress[channel],DMA_CurrentByteCount[channel]);
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if (increment)
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memcpy(dmabuf,(void*)DMA_CurrentBaseAddress[channel],ret*size);
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else
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for(i=0,p=(char*)DMA_CurrentBaseAddress[channel];i<ret*size;i++)
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/* FIXME: possible endianness issue for 16 bits DMA */
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dmabuf[i] = *(p-i);
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break;
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}
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/* Check for end of transfer */
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if (DMA_CurrentByteCount[channel]==0) {
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TRACE("DMA buffer empty\n");
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/* Update status register of the DMA chip corresponding to the channel */
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DMA_Status[dmachip] |= 1 << (channel & 0x3); /* Mark transfer as finished */
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DMA_Status[dmachip] &= ~(1 << ((channel & 0x3) + 4)); /* Reset soft request if any */
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if (autoinit) {
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/* Reload Current* register to their initial values */
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DMA_CurrentBaseAddress[channel] = DMA_BaseAddress[channel];
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DMA_CurrentByteCount[channel] = DMA_ByteCount[channel];
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}
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}
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return ret;
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}
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void DMA_ioport_out( WORD port, BYTE val )
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{
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int channel,dmachip;
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switch(port)
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{
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case 0x00:
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case 0x02:
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case 0x04:
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case 0x06:
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case 0xC0:
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case 0xC4:
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case 0xC8:
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case 0xCC:
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/* Base Address*/
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channel = (port&0xC0)?((port-0xC0)>>2):(port>>1);
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dmachip = (channel<4) ? 0 : 1;
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if (!DMA_Toggle[dmachip])
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DMA_BaseAddress[channel]=(DMA_BaseAddress[channel] & ~0xFF)|(val & 0xFF);
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else {
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DMA_BaseAddress[channel]=(DMA_BaseAddress[channel] & (~(0xFF << 8)))|((val & 0xFF) << 8);
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DMA_CurrentBaseAddress[channel] = DMA_BaseAddress[channel];
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TRACE("Write Base Address = %lx\n",DMA_BaseAddress[channel]);
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}
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DMA_Toggle[dmachip] = !DMA_Toggle[dmachip];
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break;
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case 0x01:
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case 0x03:
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case 0x05:
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case 0x07:
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case 0xC2:
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case 0xC6:
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case 0xCA:
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case 0xCE:
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/* Count*/
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channel = ((port-1)&0xC0)?(((port-1)-0xC0)>>2):(port>>1);
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dmachip = (channel<4) ? 0 : 1;
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if (!DMA_Toggle[dmachip])
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DMA_ByteCount[channel]=(DMA_ByteCount[channel] & ~0xFF)|((val+1) & 0xFF);
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else {
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DMA_ByteCount[channel]=(DMA_ByteCount[channel] & (~(0xFF << 8)))|(((val+1) & 0xFF) << 8);
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DMA_CurrentByteCount[channel] = DMA_ByteCount[channel];
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TRACE("Write Count = %x.\n",DMA_ByteCount[channel]);
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}
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DMA_Toggle[dmachip] = !DMA_Toggle[dmachip];
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break;
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/* Low Page Base Address */
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case 0x87: DMA_BaseAddress[0]=(DMA_BaseAddress[0] & (~0xFF << 16))|((val & 0xFF) << 16); break;
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case 0x83: DMA_BaseAddress[1]=(DMA_BaseAddress[1] & (~0xFF << 16))|((val & 0xFF) << 16); break;
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case 0x81: DMA_BaseAddress[2]=(DMA_BaseAddress[2] & (~0xFF << 16))|((val & 0xFF) << 16); break;
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case 0x82: DMA_BaseAddress[3]=(DMA_BaseAddress[3] & (~0xFF << 16))|((val & 0xFF) << 16); break;
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case 0x8B: DMA_BaseAddress[5]=(DMA_BaseAddress[5] & (~0xFF << 16))|((val & 0xFF) << 16); break;
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case 0x89: DMA_BaseAddress[6]=(DMA_BaseAddress[6] & (~0xFF << 16))|((val & 0xFF) << 16); break;
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case 0x8A: DMA_BaseAddress[7]=(DMA_BaseAddress[7] & (~0xFF << 16))|((val & 0xFF) << 16); break;
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/* Low Page Base Address (only 4 lower bits are significant) */
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case 0x487: DMA_BaseAddress[0]=(DMA_BaseAddress[0] & (~0xFF << 24))|((val & 0x0F) << 24); break;
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case 0x483: DMA_BaseAddress[1]=(DMA_BaseAddress[1] & (~0xFF << 24))|((val & 0x0F) << 24); break;
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case 0x481: DMA_BaseAddress[2]=(DMA_BaseAddress[2] & (~0xFF << 24))|((val & 0x0F) << 24); break;
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case 0x482: DMA_BaseAddress[3]=(DMA_BaseAddress[3] & (~0xFF << 24))|((val & 0x0F) << 24); break;
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case 0x48B: DMA_BaseAddress[5]=(DMA_BaseAddress[5] & (~0xFF << 24))|((val & 0x0F) << 24); break;
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case 0x489: DMA_BaseAddress[6]=(DMA_BaseAddress[6] & (~0xFF << 24))|((val & 0x0F) << 24); break;
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case 0x48A: DMA_BaseAddress[7]=(DMA_BaseAddress[7] & (~0xFF << 24))|((val & 0x0F) << 24); break;
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case 0x08:
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case 0xD0:
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/* Command */
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FIXME("Write Command (%x) - Not Implemented\n",val);
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break;
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case 0x0B:
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case 0xD6:
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/* Mode */
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TRACE("Write Mode (%x)\n",val);
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DMA_Command[((port==0xD6)?4:0)+(val&0x3)]=val;
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switch(val>>6)
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{
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case 0:
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/* Request mode */
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FIXME("Request Mode - Not Implemented\n");
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break;
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case 1:
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/* Single Mode */
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break;
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case 2:
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/* Block mode */
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FIXME("Block Mode - Not Implemented\n");
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break;
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case 3:
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/* Cascade Mode */
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ERR("Cascade Mode should not be used by regular apps\n");
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break;
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}
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break;
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case 0x0A:
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case 0xD4:
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/* Write Single Mask Bit */
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TRACE("Write Single Mask Bit (%x)\n",val);
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dmachip = (port==0x0A) ? 0 : 1;
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if (val&4)
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DMA_Mask[dmachip] |= 1<<(val&3);
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else
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DMA_Mask[dmachip] &= ~(1<<(val&3));
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break;
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case 0x0F:
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case 0xDE:
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/* Write All Mask Bits (only 4 lower bits are significant */
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FIXME("Write All Mask Bits (%x)\n",val);
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dmachip = (port==0x0F) ? 0 : 1;
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DMA_Mask[dmachip] = val & 0x0F;
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break;
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case 0x09:
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case 0xD2:
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/* Software DRQx Request */
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FIXME("Software DRQx Request (%x) - Not Implemented\n",val);
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break;
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case 0x0C:
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case 0xD8:
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/* Reset DMA Pointer Flip-Flop */
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TRACE("Reset Flip-Flop\n");
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DMA_Toggle[port==0xD8]=FALSE;
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break;
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case 0x0D:
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case 0xDA:
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/* Master Reset */
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TRACE("Master Reset\n");
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dmachip = (port==0x0D) ? 0 : 1;
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/* Reset DMA Pointer Flip-Flop */
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DMA_Toggle[dmachip]=FALSE;
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/* Mask all channels */
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DMA_Mask[dmachip] = 0x0F;
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break;
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case 0x0E:
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case 0xDC:
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/* Reset Mask Register */
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FIXME("Reset Mask Register\n");
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dmachip = (port==0x0E) ? 0 : 1;
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/* Unmask all channels */
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DMA_Mask[dmachip] = 0x00;
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break;
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}
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}
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BYTE DMA_ioport_in( WORD port )
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{
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int channel,dmachip;
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BYTE res = 0;
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switch(port)
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{
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case 0x00:
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case 0x02:
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case 0x04:
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case 0x06:
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case 0xC0:
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case 0xC4:
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case 0xC8:
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case 0xCC:
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/* Base Address*/
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channel = (port&0xC0)?((port-0xC0)>>2):(port>>1);
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dmachip = (channel<4) ? 0 : 1;
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if (!DMA_Toggle[dmachip])
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res = DMA_CurrentBaseAddress[channel] & 0xFF;
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else {
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res = (DMA_CurrentBaseAddress[channel] & (0xFF << 8))>>8;
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TRACE("Read Current Base Address = %lx\n",DMA_CurrentBaseAddress[channel]);
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}
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DMA_Toggle[dmachip] = !DMA_Toggle[dmachip];
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break;
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case 0x01:
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case 0x03:
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case 0x05:
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case 0x07:
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case 0xC2:
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case 0xC6:
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case 0xCA:
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case 0xCE:
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/* Count*/
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channel = ((port-1)&0xC0)?(((port-1)-0xC0)>>2):(port>>1);
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dmachip = (channel<4) ? 0 : 1;
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if (!DMA_Toggle[dmachip])
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res = DMA_CurrentByteCount[channel] & 0xFF;
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else {
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res = (DMA_CurrentByteCount[channel] & (0xFF << 8))>>8;
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TRACE("Read Current Count = %x.\n",DMA_CurrentByteCount[channel]);
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}
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DMA_Toggle[dmachip] = !DMA_Toggle[dmachip];
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break;
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|
|
||||||
|
/* Low Page Base Address */
|
||||||
|
case 0x87: res = (DMA_BaseAddress[0]&(0xFF<<16))>>16; break;
|
||||||
|
case 0x83: res = (DMA_BaseAddress[1]&(0xFF<<16))>>16; break;
|
||||||
|
case 0x81: res = (DMA_BaseAddress[2]&(0xFF<<16))>>16; break;
|
||||||
|
case 0x82: res = (DMA_BaseAddress[3]&(0xFF<<16))>>16; break;
|
||||||
|
case 0x8B: res = (DMA_BaseAddress[5]&(0xFF<<16))>>16; break;
|
||||||
|
case 0x89: res = (DMA_BaseAddress[6]&(0xFF<<16))>>16; break;
|
||||||
|
case 0x8A: res = (DMA_BaseAddress[7]&(0xFF<<16))>>16; break;
|
||||||
|
|
||||||
|
/* High Page Base Address */
|
||||||
|
case 0x487: res = (DMA_BaseAddress[0]&(0xFF<<24))>>24; break;
|
||||||
|
case 0x483: res = (DMA_BaseAddress[1]&(0xFF<<24))>>24; break;
|
||||||
|
case 0x481: res = (DMA_BaseAddress[2]&(0xFF<<24))>>24; break;
|
||||||
|
case 0x482: res = (DMA_BaseAddress[3]&(0xFF<<24))>>24; break;
|
||||||
|
case 0x48B: res = (DMA_BaseAddress[5]&(0xFF<<24))>>24; break;
|
||||||
|
case 0x489: res = (DMA_BaseAddress[6]&(0xFF<<24))>>24; break;
|
||||||
|
case 0x48A: res = (DMA_BaseAddress[7]&(0xFF<<24))>>24; break;
|
||||||
|
|
||||||
|
case 0x08:
|
||||||
|
case 0xD0:
|
||||||
|
/* Status */
|
||||||
|
TRACE("Status Register Read\n");
|
||||||
|
res = DMA_Status[(port==0x08)?0:1];
|
||||||
|
|
||||||
|
case 0x0D:
|
||||||
|
case 0xDA:
|
||||||
|
/* Temporary */
|
||||||
|
FIXME("Temporary Register Read- Not Implemented\n");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
@ -72,6 +72,11 @@ extern int DOSDEV_Write(DWORD dev, DWORD buf, int buflen, int verify);
|
||||||
extern int DOSDEV_IoctlRead(DWORD dev, DWORD buf, int buflen);
|
extern int DOSDEV_IoctlRead(DWORD dev, DWORD buf, int buflen);
|
||||||
extern int DOSDEV_IoctlWrite(DWORD dev, DWORD buf, int buflen);
|
extern int DOSDEV_IoctlWrite(DWORD dev, DWORD buf, int buflen);
|
||||||
|
|
||||||
|
/* dma.c */
|
||||||
|
extern int DMA_Transfer(int channel,int reqlength,void* buffer);
|
||||||
|
extern void DMA_ioport_out( WORD port, BYTE val );
|
||||||
|
extern BYTE DMA_ioport_in( WORD port );
|
||||||
|
|
||||||
/* int09.c */
|
/* int09.c */
|
||||||
extern void WINAPI DOSVM_Int09Handler(CONTEXT86*);
|
extern void WINAPI DOSVM_Int09Handler(CONTEXT86*);
|
||||||
extern void WINAPI DOSVM_Int09SendScan(BYTE scan,BYTE ascii);
|
extern void WINAPI DOSVM_Int09SendScan(BYTE scan,BYTE ascii);
|
||||||
|
|
@ -113,6 +118,10 @@ extern void WINAPI DOSVM_Int33Console(MOUSE_EVENT_RECORD*);
|
||||||
extern void WINAPI DOSVM_Int67Handler(CONTEXT86*);
|
extern void WINAPI DOSVM_Int67Handler(CONTEXT86*);
|
||||||
extern void WINAPI EMS_Ioctl_Handler(CONTEXT86*);
|
extern void WINAPI EMS_Ioctl_Handler(CONTEXT86*);
|
||||||
|
|
||||||
|
/* soundblaster.c */
|
||||||
|
extern void SB_ioport_out( WORD port, BYTE val );
|
||||||
|
extern BYTE SB_ioport_in( WORD port );
|
||||||
|
|
||||||
/* xms.c */
|
/* xms.c */
|
||||||
extern void WINAPI XMS_Handler(CONTEXT86*);
|
extern void WINAPI XMS_Handler(CONTEXT86*);
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -36,10 +36,51 @@ BOOL WINAPI DOSVM_inport( int port, int size, DWORD *res )
|
||||||
case 0x60:
|
case 0x60:
|
||||||
*res = DOSVM_Int09ReadScan(NULL);
|
*res = DOSVM_Int09ReadScan(NULL);
|
||||||
break;
|
break;
|
||||||
|
case 0x22a:
|
||||||
|
case 0x22c:
|
||||||
|
case 0x22e:
|
||||||
|
*res = (DWORD)SB_ioport_in( port );
|
||||||
|
break;
|
||||||
case 0x3ba:
|
case 0x3ba:
|
||||||
case 0x3da:
|
case 0x3da:
|
||||||
*res = (DWORD)VGA_ioport_in( port );
|
*res = (DWORD)VGA_ioport_in( port );
|
||||||
break;
|
break;
|
||||||
|
case 0x00:
|
||||||
|
case 0x01:
|
||||||
|
case 0x02:
|
||||||
|
case 0x03:
|
||||||
|
case 0x04:
|
||||||
|
case 0x05:
|
||||||
|
case 0x06:
|
||||||
|
case 0x07:
|
||||||
|
case 0xC0:
|
||||||
|
case 0xC2:
|
||||||
|
case 0xC4:
|
||||||
|
case 0xC6:
|
||||||
|
case 0xC8:
|
||||||
|
case 0xCA:
|
||||||
|
case 0xCC:
|
||||||
|
case 0xCE:
|
||||||
|
case 0x87:
|
||||||
|
case 0x83:
|
||||||
|
case 0x81:
|
||||||
|
case 0x82:
|
||||||
|
case 0x8B:
|
||||||
|
case 0x89:
|
||||||
|
case 0x8A:
|
||||||
|
case 0x487:
|
||||||
|
case 0x483:
|
||||||
|
case 0x481:
|
||||||
|
case 0x482:
|
||||||
|
case 0x48B:
|
||||||
|
case 0x489:
|
||||||
|
case 0x48A:
|
||||||
|
case 0x08:
|
||||||
|
case 0xD0:
|
||||||
|
case 0x0D:
|
||||||
|
case 0xDA:
|
||||||
|
*res = (DWORD)DMA_ioport_in( port );
|
||||||
|
break;
|
||||||
default:
|
default:
|
||||||
return FALSE; /* not handled */
|
return FALSE; /* not handled */
|
||||||
}
|
}
|
||||||
|
|
@ -57,10 +98,62 @@ BOOL WINAPI DOSVM_outport( int port, int size, DWORD value )
|
||||||
case 0x20:
|
case 0x20:
|
||||||
DOSVM_PIC_ioport_out( port, (BYTE)value );
|
DOSVM_PIC_ioport_out( port, (BYTE)value );
|
||||||
break;
|
break;
|
||||||
|
case 0x226:
|
||||||
|
case 0x22c:
|
||||||
|
SB_ioport_out( port, (BYTE)value );
|
||||||
|
break;
|
||||||
case 0x3c8:
|
case 0x3c8:
|
||||||
case 0x3c9:
|
case 0x3c9:
|
||||||
VGA_ioport_out( port, (BYTE)value );
|
VGA_ioport_out( port, (BYTE)value );
|
||||||
break;
|
break;
|
||||||
|
case 0x00:
|
||||||
|
case 0x01:
|
||||||
|
case 0x02:
|
||||||
|
case 0x03:
|
||||||
|
case 0x04:
|
||||||
|
case 0x05:
|
||||||
|
case 0x06:
|
||||||
|
case 0x07:
|
||||||
|
case 0xC0:
|
||||||
|
case 0xC2:
|
||||||
|
case 0xC4:
|
||||||
|
case 0xC6:
|
||||||
|
case 0xC8:
|
||||||
|
case 0xCA:
|
||||||
|
case 0xCC:
|
||||||
|
case 0xCE:
|
||||||
|
case 0x87:
|
||||||
|
case 0x83:
|
||||||
|
case 0x81:
|
||||||
|
case 0x82:
|
||||||
|
case 0x8B:
|
||||||
|
case 0x89:
|
||||||
|
case 0x8A:
|
||||||
|
case 0x487:
|
||||||
|
case 0x483:
|
||||||
|
case 0x481:
|
||||||
|
case 0x482:
|
||||||
|
case 0x48B:
|
||||||
|
case 0x489:
|
||||||
|
case 0x48A:
|
||||||
|
case 0x08:
|
||||||
|
case 0xD0:
|
||||||
|
case 0x0B:
|
||||||
|
case 0xD6:
|
||||||
|
case 0x0A:
|
||||||
|
case 0xD4:
|
||||||
|
case 0x0F:
|
||||||
|
case 0xDE:
|
||||||
|
case 0x09:
|
||||||
|
case 0xD2:
|
||||||
|
case 0x0C:
|
||||||
|
case 0xD8:
|
||||||
|
case 0x0D:
|
||||||
|
case 0xDA:
|
||||||
|
case 0x0E:
|
||||||
|
case 0xDC:
|
||||||
|
DMA_ioport_out( port, (BYTE)value );
|
||||||
|
break;
|
||||||
default:
|
default:
|
||||||
return FALSE; /* not handled */
|
return FALSE; /* not handled */
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,383 @@
|
||||||
|
/*
|
||||||
|
* Soundblaster Emulation
|
||||||
|
*
|
||||||
|
* Copyright 2002 Christian Costa
|
||||||
|
*
|
||||||
|
* This library is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU Lesser General Public
|
||||||
|
* License as published by the Free Software Foundation; either
|
||||||
|
* version 2.1 of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This library is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* Lesser General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU Lesser General Public
|
||||||
|
* License along with this library; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "config.h"
|
||||||
|
|
||||||
|
#include "windef.h"
|
||||||
|
#include "dosexe.h"
|
||||||
|
#include "wine/debug.h"
|
||||||
|
#include "dsound.h"
|
||||||
|
|
||||||
|
WINE_DEFAULT_DEBUG_CHANNEL(sblaster);
|
||||||
|
|
||||||
|
/* Board Configuration */
|
||||||
|
/* FIXME: Should be in a config file */
|
||||||
|
#define SB_IRQ 5
|
||||||
|
#define SB_IRQ_PRI 11
|
||||||
|
#define SB_DMA 1
|
||||||
|
|
||||||
|
/* Soundblaster state */
|
||||||
|
static int SampleMode; /* Mono / Stereo */
|
||||||
|
static int SampleRate;
|
||||||
|
static int SamplesCount;
|
||||||
|
static BYTE DSP_Command[256]; /* Store param numbers in bytes for each command */
|
||||||
|
static BYTE DSP_InBuffer[10]; /* Store DSP command bytes parameters from host */
|
||||||
|
static int InSize; /* Nb of bytes in InBuffer */
|
||||||
|
static BYTE DSP_OutBuffer[10]; /* Store DSP information bytes to host */
|
||||||
|
static int OutSize; /* Nb of bytes in InBuffer */
|
||||||
|
static int command; /* Current command */
|
||||||
|
static int end_sound_loop = 0;
|
||||||
|
static int dma_enable = 0;
|
||||||
|
|
||||||
|
/* The maximum size of a dma transfer can be 65536 */
|
||||||
|
#define DMATRFSIZE 1024
|
||||||
|
|
||||||
|
/* DMA can perform 8 or 16-bit transfer */
|
||||||
|
static BYTE dma_buffer[DMATRFSIZE*2];
|
||||||
|
|
||||||
|
/* Direct Sound buffer config */
|
||||||
|
#define DSBUFLEN 4096 /* FIXME: Only this value seems to work */
|
||||||
|
|
||||||
|
/* Direct Sound playback stuff */
|
||||||
|
static HMODULE hmodule;
|
||||||
|
typedef HRESULT (WINAPI* fnDirectSoundCreate) (LPGUID,LPDIRECTSOUND*,LPUNKNOWN);
|
||||||
|
fnDirectSoundCreate lpDirectSoundCreate;
|
||||||
|
static LPDIRECTSOUND lpdsound;
|
||||||
|
static LPDIRECTSOUNDBUFFER lpdsbuf;
|
||||||
|
static DSBUFFERDESC buf_desc;
|
||||||
|
static WAVEFORMATEX wav_fmt;
|
||||||
|
static HANDLE SB_Thread;
|
||||||
|
static UINT buf_off;
|
||||||
|
extern HWND vga_hwnd;
|
||||||
|
|
||||||
|
/* SB_Poll performs DMA transfers and fills the Direct Sound Buffer */
|
||||||
|
static DWORD CALLBACK SB_Poll( void *dummy )
|
||||||
|
{
|
||||||
|
HRESULT result;
|
||||||
|
LPBYTE lpbuf1 = NULL;
|
||||||
|
LPBYTE lpbuf2 = NULL;
|
||||||
|
DWORD dwsize1 = 0;
|
||||||
|
DWORD dwsize2 = 0;
|
||||||
|
DWORD dwbyteswritten1 = 0;
|
||||||
|
DWORD dwbyteswritten2 = 0;
|
||||||
|
int size;
|
||||||
|
|
||||||
|
/* FIXME: this loop must be improved */
|
||||||
|
while(!end_sound_loop)
|
||||||
|
{
|
||||||
|
Sleep(10);
|
||||||
|
|
||||||
|
if (dma_enable) {
|
||||||
|
size = DMA_Transfer(SB_DMA,min(DMATRFSIZE,SamplesCount),dma_buffer);
|
||||||
|
} else
|
||||||
|
continue;
|
||||||
|
|
||||||
|
result = IDirectSoundBuffer_Lock(lpdsbuf,buf_off,size,&lpbuf1,&dwsize1,&lpbuf2,&dwsize2,0);
|
||||||
|
if (result != DS_OK) {
|
||||||
|
ERR("Unable to lock sound buffer !\n");
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
dwbyteswritten1 = min(size,dwsize1);
|
||||||
|
memcpy(lpbuf1,dma_buffer,dwbyteswritten1);
|
||||||
|
if (size>dwsize1) {
|
||||||
|
dwbyteswritten2 = min(size - dwbyteswritten1,dwsize2);
|
||||||
|
memcpy(lpbuf2,dma_buffer+dwbyteswritten1,dwbyteswritten2);
|
||||||
|
}
|
||||||
|
buf_off = (buf_off + dwbyteswritten1 + dwbyteswritten2) % DSBUFLEN;
|
||||||
|
|
||||||
|
result = IDirectSoundBuffer_Unlock(lpdsbuf,lpbuf1,dwbyteswritten1,lpbuf2,dwbyteswritten2);
|
||||||
|
if (result!=DS_OK)
|
||||||
|
ERR("Unable to unlock sound buffer !\n");
|
||||||
|
|
||||||
|
SamplesCount -= size;
|
||||||
|
if (!SamplesCount) {
|
||||||
|
DOSVM_QueueEvent(SB_IRQ,SB_IRQ_PRI,NULL,NULL);
|
||||||
|
dma_enable = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
BOOL SB_Init()
|
||||||
|
{
|
||||||
|
HRESULT result;
|
||||||
|
|
||||||
|
if (!lpdsound) {
|
||||||
|
hmodule = LoadLibraryA("dsound.dll");
|
||||||
|
if (!hmodule) {
|
||||||
|
ERR("Can't load dsound.dll !\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
lpDirectSoundCreate = (fnDirectSoundCreate)GetProcAddress(hmodule,"DirectSoundCreate");
|
||||||
|
if (!lpDirectSoundCreate) {
|
||||||
|
/* CloseHandle(hmodule); */
|
||||||
|
ERR("Can't find DirectSoundCreate function !\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
result = (*lpDirectSoundCreate)(NULL,&lpdsound,NULL);
|
||||||
|
if (result != DS_OK) {
|
||||||
|
ERR("Unable to initialize Sound Subsystem err = %lx !\n",result);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* FIXME: To uncomment when :
|
||||||
|
- SetCooperative level is correctly implemented
|
||||||
|
- an always valid and non changing handle to a windows (vga_hwnd) is available
|
||||||
|
(this surely needs some work in vga.c)
|
||||||
|
result = IDirectSound_SetCooperativeLevel(lpdsound,vga_hwnd,DSSCL_EXCLUSIVE|DSSCL_PRIORITY);
|
||||||
|
if (result != DS_OK) {
|
||||||
|
ERR("Can't set cooperative level !\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Default format */
|
||||||
|
wav_fmt.wFormatTag = WAVE_FORMAT_PCM;
|
||||||
|
wav_fmt.nChannels = 1;
|
||||||
|
wav_fmt.nSamplesPerSec = 22050;
|
||||||
|
wav_fmt.nAvgBytesPerSec = 22050;
|
||||||
|
wav_fmt.nBlockAlign = 1;
|
||||||
|
wav_fmt.wBitsPerSample = 8;
|
||||||
|
wav_fmt.cbSize = 0;
|
||||||
|
|
||||||
|
memset(&buf_desc,0,sizeof(DSBUFFERDESC));
|
||||||
|
buf_desc.dwSize = sizeof(DSBUFFERDESC);
|
||||||
|
buf_desc.dwBufferBytes = DSBUFLEN;
|
||||||
|
buf_desc.lpwfxFormat = &wav_fmt;
|
||||||
|
result = IDirectSound_CreateSoundBuffer(lpdsound,&buf_desc,&lpdsbuf,NULL);
|
||||||
|
if (result != DS_OK) {
|
||||||
|
ERR("Can't create sound buffer !\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
result = IDirectSoundBuffer_Play(lpdsbuf,0, 0, DSBPLAY_LOOPING);
|
||||||
|
if (result != DS_OK) {
|
||||||
|
ERR("Can't start playing !\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
buf_off = 0;
|
||||||
|
end_sound_loop = 0;
|
||||||
|
SB_Thread = CreateThread(NULL, 0, SB_Poll, NULL, 0, NULL);
|
||||||
|
TRACE("thread\n");
|
||||||
|
if (!SB_Thread) {
|
||||||
|
ERR("Can't create thread !\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
void SB_Reset()
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for(i=0;i<256;i++)
|
||||||
|
DSP_Command[i]=0;
|
||||||
|
|
||||||
|
/* Set Time Constant */
|
||||||
|
DSP_Command[0x40]=1;
|
||||||
|
/* Generate IRQ */
|
||||||
|
DSP_Command[0xF2]=0;
|
||||||
|
/* DMA DAC 8-bits */
|
||||||
|
DSP_Command[0x14]=2;
|
||||||
|
/* Generic DAC/ADC DMA (16-bit, 8-bit) */
|
||||||
|
for(i=0xB0;i<=0xCF;i++)
|
||||||
|
DSP_Command[i]=3;
|
||||||
|
/* DSP Indentification */
|
||||||
|
DSP_Command[0xE0]=1;
|
||||||
|
|
||||||
|
/* Clear command and input buffer */
|
||||||
|
command = -1;
|
||||||
|
InSize = 0;
|
||||||
|
|
||||||
|
/* Put a garbage value in the output buffer */
|
||||||
|
OutSize = 1;
|
||||||
|
if (SB_Init())
|
||||||
|
/* All right, let's put the magic value for autodetection */
|
||||||
|
DSP_OutBuffer[0] = 0xaa;
|
||||||
|
else
|
||||||
|
/* Something is wrong, put 0 to failed audetection */
|
||||||
|
DSP_OutBuffer[0] = 0x00;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Find a standard sampling rate for DirectSound */
|
||||||
|
int SB_StdSampleRate(int SampleRate)
|
||||||
|
{
|
||||||
|
if (SampleRate>((44100+48000)/2)) return 48000;
|
||||||
|
if (SampleRate>((32000+44100)/2)) return 44100;
|
||||||
|
if (SampleRate>((24000+32000)/2)) return 32000;
|
||||||
|
if (SampleRate>((22050+24000)/2)) return 24000;
|
||||||
|
if (SampleRate>((16000+22050)/2)) return 22050;
|
||||||
|
if (SampleRate>((12000+16000)/2)) return 16000;
|
||||||
|
if (SampleRate>((11025+12000)/2)) return 12000;
|
||||||
|
if (SampleRate>((8000+11025)/2)) return 11025;
|
||||||
|
return 8000;
|
||||||
|
}
|
||||||
|
|
||||||
|
void SB_ioport_out( WORD port, BYTE val )
|
||||||
|
{
|
||||||
|
switch(port)
|
||||||
|
{
|
||||||
|
/* DSP - Reset */
|
||||||
|
case 0x226:
|
||||||
|
TRACE("Resetting DSP.\n");
|
||||||
|
SB_Reset();
|
||||||
|
break;
|
||||||
|
/* DSP - Write Data or Command */
|
||||||
|
case 0x22c:
|
||||||
|
TRACE("val=%x\n",val);
|
||||||
|
if (command == -1) {
|
||||||
|
/* Clear input buffer and set the current command */
|
||||||
|
command = val;
|
||||||
|
InSize = 0;
|
||||||
|
}
|
||||||
|
if (InSize!=DSP_Command[command])
|
||||||
|
/* Fill the input buffer the command parameters if any */
|
||||||
|
DSP_InBuffer[InSize++]=val;
|
||||||
|
else {
|
||||||
|
/* Process command */
|
||||||
|
switch(command)
|
||||||
|
{
|
||||||
|
case 0x10: /* SB */
|
||||||
|
FIXME("Direct DAC (8-bit) - Not Implemented\n");
|
||||||
|
break;
|
||||||
|
case 0x14: /* SB */
|
||||||
|
SamplesCount = DSP_InBuffer[1]+(val<<8)+1;
|
||||||
|
TRACE("DMA DAC (8-bit) for %x samples\n",SamplesCount);
|
||||||
|
dma_enable = 1;
|
||||||
|
break;
|
||||||
|
case 0x20:
|
||||||
|
FIXME("Direct ADC (8-bit) - Not Implemented\n");
|
||||||
|
break;
|
||||||
|
case 0x24: /* SB */
|
||||||
|
FIXME("DMA ADC (8-bit) - Not Implemented\n");
|
||||||
|
break;
|
||||||
|
case 0x40: /* SB */
|
||||||
|
SampleRate = 1000000/(256-val);
|
||||||
|
TRACE("Set Time Constant (%d <-> %d Hz => %d Hz)\n",DSP_InBuffer[0],
|
||||||
|
SampleRate,SB_StdSampleRate(SampleRate));
|
||||||
|
SampleRate = SB_StdSampleRate(SampleRate);
|
||||||
|
wav_fmt.nSamplesPerSec = SampleRate;
|
||||||
|
wav_fmt.nAvgBytesPerSec = SampleRate;
|
||||||
|
IDirectSoundBuffer_SetFormat(lpdsbuf,&wav_fmt);
|
||||||
|
break;
|
||||||
|
/* case 0xBX/0xCX -> See below */
|
||||||
|
case 0xD0: /* SB */
|
||||||
|
TRACE("Halt DMA operation (8-bit)\n");
|
||||||
|
dma_enable = 0;
|
||||||
|
break;
|
||||||
|
case 0xD1: /* SB */
|
||||||
|
FIXME("Enable Speaker - Not Implemented\n");
|
||||||
|
break;
|
||||||
|
case 0xD3: /* SB */
|
||||||
|
FIXME("Disable Speaker - Not Implemented\n");
|
||||||
|
break;
|
||||||
|
case 0xD4: /* SB */
|
||||||
|
FIXME("Continue DMA operation (8-bit) - Not Implemented\n");
|
||||||
|
break;
|
||||||
|
case 0xD8: /* SB */
|
||||||
|
FIXME("Speaker Status - Not Implemented\n");
|
||||||
|
break;
|
||||||
|
case 0xE0: /* SB 2.0 */
|
||||||
|
TRACE("DSP Identification\n");
|
||||||
|
DSP_OutBuffer[OutSize++] = ~val;
|
||||||
|
break;
|
||||||
|
case 0xE1: /* SB */
|
||||||
|
FIXME("DSP Version - Not Implemented\n");
|
||||||
|
break;
|
||||||
|
case 0xF2: /* SB */
|
||||||
|
TRACE("IRQ Request (8-bit)\n");
|
||||||
|
DOSVM_QueueEvent(SB_IRQ,SB_IRQ_PRI,NULL,NULL);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
if (((command&0xF0)==0xB0)||((DSP_InBuffer[0]&0xF0)==0xC0)) {
|
||||||
|
/* SB16 */
|
||||||
|
FIXME("Generic DAC/ADC DMA (16-bit, 8-bit) - %d % d\n",command,DSP_InBuffer[1]);
|
||||||
|
if (command&0x02)
|
||||||
|
FIXME("Generic DAC/ADC fifo mode not supported\n");
|
||||||
|
if (command&0x04)
|
||||||
|
FIXME("Generic DAC/ADC autoinit dma mode not supported\n");
|
||||||
|
if (command&0x08)
|
||||||
|
FIXME("Generic DAC/ADC adc mode not supported\n");
|
||||||
|
switch(command>>4) {
|
||||||
|
case 0xB:
|
||||||
|
FIXME("Generic DAC/ADC 8-bit not supported\n");
|
||||||
|
SampleMode = 0;
|
||||||
|
break;
|
||||||
|
case 0xC:
|
||||||
|
FIXME("Generic DAC/ADC 16-bit not supported\n");
|
||||||
|
SampleMode = 1;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
ERR("Generic DAC/ADC resolution unknown\n");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (DSP_InBuffer[1]&0x010)
|
||||||
|
FIXME("Generic DAC/ADC signed sample mode not supported\n");
|
||||||
|
if (DSP_InBuffer[1]&0x020)
|
||||||
|
FIXME("Generic DAC/ADC stereo mode not supported\n");
|
||||||
|
SamplesCount = DSP_InBuffer[2]+(val<<8)+1;
|
||||||
|
TRACE("Generic DMA for %x samples\n",SamplesCount);
|
||||||
|
dma_enable = 1;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
FIXME("DSP command %x not supported\n",val);
|
||||||
|
}
|
||||||
|
/* Empty the input buffer and end the command */
|
||||||
|
InSize = 0;
|
||||||
|
command = -1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
BYTE SB_ioport_in( WORD port )
|
||||||
|
{
|
||||||
|
BYTE res = 0;
|
||||||
|
|
||||||
|
switch(port)
|
||||||
|
{
|
||||||
|
/* DSP Read Data */
|
||||||
|
case 0x22a:
|
||||||
|
/* Value in the read buffer */
|
||||||
|
if (OutSize)
|
||||||
|
res = DSP_OutBuffer[--OutSize];
|
||||||
|
else
|
||||||
|
/* return the last byte */
|
||||||
|
res = DSP_OutBuffer[0];
|
||||||
|
break;
|
||||||
|
/* DSP - Write Buffer Status */
|
||||||
|
case 0x22c:
|
||||||
|
/* DSP always ready for writing */
|
||||||
|
res = 0x00;
|
||||||
|
break;
|
||||||
|
/* DSP - Data Available Status */
|
||||||
|
/* DSP - IRQ Acknowledge, 8-bit */
|
||||||
|
case 0x22e:
|
||||||
|
/* DSP data availability check */
|
||||||
|
if (OutSize)
|
||||||
|
res = 0x80;
|
||||||
|
else
|
||||||
|
res = 0x00;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
return res;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue