Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add support for using the MFP0 timer A. Not calibrated though.

Browse Source 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28013 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
François Revol 2008-10-12 22:43:45 +00:00
parent 6d695d0bc8
commit e673981e7e
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/system/kernel/platform/atari_m68k/platform.cpp
View File

@ -1,5 +1,5 @@
/*
Just a dummy. No BIOS services are required in the kernel.
Atari kernel platform code.
*/
#include <arch_platform.h>
@ -288,8 +288,10 @@ M68KAtari::InitRTC(struct kernel_args *kernelArgs,
status_t
M68KAtari::InitTimer(struct kernel_args *kernelArgs)
{
panic("WRITEME");
return B_NO_INIT;
out8(fMFP[0]->Base() + MFP_TACR, 0); // stop it
install_io_interrupt_handler(fMFP[0]->Vector()+13, &pit_timer_interrupt, NULL, 0);
return B_OK;
}
@ -504,12 +506,17 @@ M68KAtari::GetHardwareRTC()
void
M68KAtari::SetHardwareTimer(bigtime_t timeout)
{
uint8 counts = (uint8)(timeout & 0x0ff);
//XXX: SCALE
out8(fMFP[0]->Base() + MFP_TADR, counts);
out8(fMFP[0]->Base() + MFP_TACR, 0x01); // delay mode, device by 4
}
void
M68KAtari::ClearHardwareTimer(void)
{
out8(fMFP[0]->Base() + MFP_TACR, 0); // stop it
}