cleaned up project:

-moved all includes into "include" directory
-extracted "wait...()"-routines into separate files
This commit is contained in:
Markus Fröschle
2012-12-10 09:30:27 +00:00
parent 6bf3a165b2
commit 703df3199e
31 changed files with 105 additions and 46 deletions

View File

@@ -31,6 +31,7 @@
#include "sysinit.h"
#include "bas_printf.h"
#include "bas_types.h"
#include <wait.h>
extern void xprintf_before_copy(const char *fmt, ...);
#define xprintf xprintf_before_copy
@@ -44,32 +45,7 @@ extern volatile long _VRAM; /* start address of video ram from linker script */
static const int MAJOR_VERSION = 0;
static const int MINOR_VERSION = 1;
/*
* wait for the specified number of us on slice timer 0. Replaces the original routines that had
* the number of useconds to wait for hardcoded in their name.
*/
inline void wait(uint32_t us)
{
uint32_t target = MCF_SLT_SCNT(0) - (us * 132);
while (MCF_SLT_SCNT(0) > target);
}
/*
* the same as above, with a checker function which gets called while
* busy waiting and allows for an early return if it returns true
*/
inline bool waitfor(uint32_t us, int (*condition)(void))
{
uint32_t target = MCF_SLT_SCNT(0) - (us * 132);
do
{
if ((*condition)())
return TRUE;
} while (MCF_SLT_SCNT(0) > target);
return FALSE;
}
/*
* init SLICE TIMER 0
* all = 32.538 sec = 30.736mHz