Introduce the new timer subsystem.

	Timer subsystem initialization code in core/timer.c

	Split the BIOS and RTDSC timer drivers from i386_timer.c

	Split arch/i386/firmware/pcbios/bios.c into the RTSDC
	timer driver and arch/i386/core/nap.c

	Split the headers properly:
		include/unistd.h - delay functions to be used by the
					gPXE core and drivers.

		include/gpxe/timer.h - the fimer subsystem interface
					to be used by the timer drivers
					and currticks() to be used by
					the code gPXE subsystems.

		include/latch.h	- removed
		include/timer.h - scheduled for removal. Some driver
					are using currticks, which is
					only for core subsystems.

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>

1 files changed, 0 insertions, 55 deletions

diff --git a/src/arch/i386/firmware/pcbios/bios.c b/src/arch/i386/firmware/pcbios/bios.c
deleted file mode 100644
index bcbe98a8..00000000
--- a/src/arch/i386/firmware/pcbios/bios.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Etherboot routines for PCBIOS firmware.
- *
- * Body of routines taken from old pcbios.S
- */
-
-#include <stdint.h>
-#include <realmode.h>
-#include <bios.h>
-
-#define CF ( 1 << 0 )
-
-/**************************************************************************
-CURRTICKS - Get Time
-Use direct memory access to BIOS variables, longword 0040:006C (ticks
-today) and byte 0040:0070 (midnight crossover flag) instead of calling
-timeofday BIOS interrupt.
-**************************************************************************/
-#if defined(CONFIG_TSC_CURRTICKS)
-#undef CONFIG_BIOS_CURRTICKS
-#else
-#define CONFIG_BIOS_CURRTICKS 1
-#endif
-#if defined(CONFIG_BIOS_CURRTICKS)
-unsigned long currticks ( void ) {
-	static uint32_t days = 0;
-	uint32_t ticks;
-	uint8_t midnight;
-
-	/* Re-enable interrupts so that the timer interrupt can occur
-	 */
-	__asm__ __volatile__ ( REAL_CODE ( "sti\n\t"
-					   "nop\n\t"
-					   "nop\n\t"
-					   "cli\n\t" ) : : );
-
-	get_real ( ticks, BDA_SEG, 0x006c );
-	get_real ( midnight, BDA_SEG, 0x0070 );
-
-	if ( midnight ) {
-		midnight = 0;
-		put_real ( midnight, BDA_SEG, 0x0070 );
-		days += 0x1800b0;
-	}
-	return ( days + ticks );
-}
-#endif	/* CONFIG_BIOS_CURRTICKS */
-
-/**************************************************************************
-CPU_NAP - Save power by halting the CPU until the next interrupt
-**************************************************************************/
-void cpu_nap ( void ) {
-	__asm__ __volatile__ ( REAL_CODE ( "sti\n\t"
-					   "hlt\n\t"
-					   "cli\n\t" ) : : );
-}