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small bugfix by hal.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3054
This commit is contained in:
Peter Veenstra 2007-12-06 17:44:19 +00:00
parent 7ae0f48fb5
commit abbf10093f
4 changed files with 15 additions and 14 deletions
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15
src/hardware/serialport/serialport.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: serialport.cpp,v 1.7 2007-02-22 08:41:16 qbix79 Exp $ */
/* $Id: serialport.cpp,v 1.8 2007-12-06 17:44:19 qbix79 Exp $ */
#include <string.h>
#include <ctype.h>
@ -44,7 +44,8 @@ bool device_COM::Read(Bit8u * data,Bit16u * size) {
sclass->Write_MCR(0x03);
for (Bit16u i=0; i<*size; i++)
{
if(!(sclass->Getchar(&data[i],true,1000))) {
Bit8u status;
if(!(sclass->Getchar(&data[i],&status,true,1000))) {
*size=i;
return true;
}
@ -1082,7 +1083,7 @@ CSerial::~CSerial(void) {
for(Bitu i = 0; i <= SERIAL_BASE_EVENT_COUNT; i++)
removeEvent(i);
};
bool CSerial::Getchar(Bit8u* data, bool wait_dsr, Bitu timeout) {
bool CSerial::Getchar(Bit8u* data, Bit8u* lsr, bool wait_dsr, Bitu timeout) {
double starttime=PIC_FullIndex();
// wait for it to become empty
@ -1093,19 +1094,19 @@ bool CSerial::Getchar(Bit8u* data, bool wait_dsr, Bitu timeout) {
if(!(starttime>PIC_FullIndex()-timeout)) {
#if SERIAL_DEBUG
if(dbg_aux)
fprintf(debugfp,"%12.3f API read timeout: MSR 0x%x\r\n", PIC_FullIndex(),Read_MSR());
fprintf(debugfp,"%12.3f Getchar status timeout: MSR 0x%x\r\n", PIC_FullIndex(),Read_MSR());
#endif
return false;
}
}
// wait for a byte to arrive
while((!(Read_LSR()&0x1))&&(starttime>PIC_FullIndex()-timeout))
while((!((*lsr=Read_LSR())&0x1))&&(starttime>PIC_FullIndex()-timeout))
CALLBACK_Idle();
if(!(starttime>PIC_FullIndex()-timeout)) {
#if SERIAL_DEBUG
if(dbg_aux)
fprintf(debugfp,"%12.3f API read timeout: MSR 0x%x\r\n", PIC_FullIndex(),Read_MSR());
fprintf(debugfp,"%12.3f Getchar data timeout: MSR 0x%x\r\n", PIC_FullIndex(),Read_MSR());
#endif
return false;
}
@ -1146,7 +1147,7 @@ bool CSerial::Putchar(Bit8u data, bool wait_dsr, bool wait_cts, Bitu timeout) {
if(!(starttime>PIC_FullIndex()-timeout)) {
#if SERIAL_DEBUG
if(dbg_aux)
fprintf(debugfp,"%12.3f API write timeout: MSR 0x%x\r\n",
fprintf(debugfp,"%12.3f Putchar timeout: MSR 0x%x\r\n",
PIC_FullIndex(),Read_MSR());
#endif
return false;