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Add additional reset method

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This commit is contained in:
Sam DEMEULEMEESTER 2022-03-08 23:24:25 +01:00
parent b609c4dd81
commit 09f5525f33
1 changed files with 11 additions and 0 deletions
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11
system/hwctrl.c
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@ -13,6 +13,7 @@
#include "io.h"
#include "hwctrl.h"
#include "unistd.h"
//------------------------------------------------------------------------------
// Public Functions
@ -25,6 +26,15 @@ void reboot(void)
// Pulse the system reset signal.
outb(0xfe, 0x64);
// If not working, use cf9 method after 100ms delay
usleep(100000);
uint8_t cf9 = inb(0xcf9) & ~6;
outb(cf9|2, 0xcf9); /* Request hard reset */
usleep(50);
outb(cf9|6, 0xcf9); /* Actually do the reset */
usleep(50);
}
void floppy_off()
@ -42,3 +52,4 @@ void cursor_off()
outb(0x0e, 0x3d4);
outb(0xff, 0x3d5);
}