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merged in changes to allow native Win32 build with no cygwin DLL dependancy

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git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@419 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
kiwi64ajs
2004-06-24 11:05:07 +00:00
parent 91d893eb52
commit be4f46c49e
14 changed files with 472 additions and 91 deletions
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126
ppiwin.c
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@@ -30,7 +30,7 @@ reg = register as defined in an enum in ppi.h. This must be converted
#if defined(__CYGWIN__)
#if defined (WIN32NATIVE)
#include <errno.h>
#include <fcntl.h>
@@ -40,11 +40,9 @@ reg = register as defined in an enum in ppi.h. This must be converted
#include <unistd.h>
#include <windows.h>
#include <sys/time.h>
#include <w32api/windows.h>
#include <windows.h>
#include "ppi.h"
extern char *progname;
@@ -317,79 +315,61 @@ static void outb(unsigned char value, unsigned short port)
return;
}
/* These two functions usecPerfDelay and usleep are based on code from the
* uisp project and are a replacement for the cygwin usleep library
* function which seems to not delay for the correct time
*/
void gettimeofday(struct timeval*tv, void*z){
// i've found only ms resolution, avrdude expects us
BOOL usecPerfDelay(long t)
{
static BOOL perf_counter_checked = FALSE;
static BOOL use_perf_counter = FALSE;
static LARGE_INTEGER freq ;
if (! perf_counter_checked) {
if (QueryPerformanceFrequency(&freq)){
use_perf_counter = TRUE;
}
perf_counter_checked = TRUE;
}
if (! use_perf_counter)
return FALSE;
else {
LARGE_INTEGER now;
LARGE_INTEGER finish;
QueryPerformanceCounter(&now);
finish.QuadPart = now.QuadPart + (t * freq.QuadPart) / 1000000;
do {
QueryPerformanceCounter(&now);
} while (now.QuadPart < finish.QuadPart);
return TRUE;
}
}
/*
WARNING WARNING This function replaces the standard usleep() library function
because it doesn't appear to delay for the correct time.
*/
#ifndef MIN_SLEEP_USEC
#define MIN_SLEEP_USEC 20000
#endif
unsigned usleep( unsigned int uSeconds )
{
struct timeval t1, t2;
struct timespec nanoDelay ;
if (usecPerfDelay(uSeconds))
return(0);
gettimeofday(&t1, NULL);
if( uSeconds > MIN_SLEEP_USEC )
{
nanoDelay.tv_sec = uSeconds / 1000000UL;
nanoDelay.tv_nsec = (uSeconds / 1000000UL) * 1000 ;
nanosleep( &nanoDelay, NULL ) ;
}
/* loop for the remaining time */
t2.tv_sec = uSeconds / 1000000UL;
t2.tv_usec = uSeconds % 1000000UL;
timeradd(&t1, &t2, &t1);
do {
gettimeofday(&t2, NULL);
} while (timercmp(&t2, &t1, <));
SYSTEMTIME st;
GetSystemTime(&st);
return(0);
tv->tv_sec=(long)(st.wSecond+st.wMinute*60+st.wHour*3600);
tv->tv_usec=(long)(st.wMilliseconds*1000);
}
// #define W32USLEEPDBG
void usleep(unsigned long us)
{
int has_highperf;
LARGE_INTEGER freq,start,stop,loopend;
#ifdef W32USLEEPDBG
unsigned long dt;
#endif
// workaround: although usleep is very precise if using
// high-performance-timers there are sometimes problems with
// verify - increasing the delay helps sometimes but not
// realiably. There must be some other problem. Maybe just
// with my test-hardware maybe in the code-base.
//// us=(unsigned long) (us*1.5);
has_highperf=QueryPerformanceFrequency(&freq);
//has_highperf=0; // debug
if (has_highperf) {
QueryPerformanceCounter(&start);
loopend.QuadPart=start.QuadPart+freq.QuadPart*us/(1000*1000);
do {
QueryPerformanceCounter(&stop);
} while (stop.QuadPart<=loopend.QuadPart);
}
else {
#ifdef W32USLEEPDBG
QueryPerformanceCounter(&start);
#endif
Sleep(1);
Sleep( (DWORD)((us+999)/1000) );
#ifdef W32USLEEPDBG
QueryPerformanceCounter(&stop);
#endif
}
#ifdef W32USLEEPDBG
dt=(unsigned long)((stop.QuadPart-start.QuadPart)*1000*1000/freq.QuadPart);
fprintf(stderr,"hpt:%i usleep usec:%lu sleep msec:%lu timed usec:%lu\n",
has_highperf,us,((us+999)/1000),dt);
#endif
}
#endif