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Diffstat (limited to 'kernel/old/include/support.h')
-rw-r--r-- | kernel/old/include/support.h | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/kernel/old/include/support.h b/kernel/old/include/support.h deleted file mode 100644 index bdc5dc6..0000000 --- a/kernel/old/include/support.h +++ /dev/null @@ -1,87 +0,0 @@ -/** -** SCCS ID: @(#)support.h 2.3 1/22/25 -** -** @file support.h -** -** @author K. Reek -** @author Warren R. Carithers -** -** Declarations for functions provided in support.c, and -** some hardware characteristics needed in the initialization. -** -*/ - -#ifndef SUPPORT_H -#define SUPPORT_H - -/* -** Delay values -** -** Notes: The parameter to the delay() function is ambiguous; it -** purports to indicate a delay length, but that isn't really tied -** to any real-world time measurement. -** -** On the original systems we used (dual 500MHz Intel P3 CPUs), each -** "unit" was approximately one tenth of a second, so delay(10) would -** delay for about one second. -** -** On the current machines (Intel Core i5-7500), delay(100) is about -** 2.5 seconds, so each "unit" is roughly 0.025 seconds. -** -** Ultimately, just remember that THESE VALUES ARE APPROXIMATE AT BEST. -*/ -#define DELAY_1_SEC 40 -#define DELAY_1_25_SEC 50 -#define DELAY_2_SEC 80 -#define DELAY_2_5_SEC 100 -#define DELAY_3_SEC 120 -#define DELAY_5_SEC 200 -#define DELAY_7_SEC 280 -#define DELAY_10_SEC 400 - -#ifndef ASM_SRC -/** -** panic -** -** Called when we find an unrecoverable error, this routine disables -** interrupts, prints a description of the error and then goes into a -** hard loop to prevent any further processing. -** -** @param reason NUL-terminated message to be printed. -*/ -void panic( char *reason ); - -/** -** init_interrupts -** -** (Re)initilizes the interrupt system. This includes initializing the -** IDT and the PIC. It is up to the user to enable processor interrupts -** when they're ready. -*/ -void init_interrupts( void ); - -/* -** install_isr -** -** Installs a second-level handler for a specific interrupt. Returns the -** previously-installed handler for reinstallation (if desired). -** -** @param vector the interrupt vector number -** @param handler the second-stage ISR function to be called by the stub -** -** @return a pointer to the previously-registered ISR -*/ -void (*install_isr( int vector, - void ( *handler )(int,int) ) )( int, int ); - -/* -** Name: delay -** -** See the comment above about the relative accuracy of the 'length' -** parameter. -*/ -void delay( int length ); - -#endif /* !ASM_SRC */ - -#endif |