Merge branch 'xl0-timer'

6 files changed, 40 insertions, 65 deletions

diff --git a/src/include/etherboot.h b/src/include/etherboot.h
index 8d658194..2a465954 100644
--- a/src/include/etherboot.h
+++ b/src/include/etherboot.h
@@ -12,8 +12,8 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <strings.h>
-#include <latch.h>
 #include <console.h>
+#include <gpxe/timer.h>
 #include <gpxe/if_arp.h>
 #include <gpxe/if_ether.h>
 
diff --git a/src/include/gpxe/dhcp.h b/src/include/gpxe/dhcp.h
index 9a9ba748..6db0e026 100644
--- a/src/include/gpxe/dhcp.h
+++ b/src/include/gpxe/dhcp.h
@@ -12,7 +12,6 @@
 #include <gpxe/in.h>
 #include <gpxe/refcnt.h>
 #include <gpxe/tables.h>
-#include <latch.h>
 
 struct net_device;
 struct job_interface;
diff --git a/src/include/gpxe/tcp.h b/src/include/gpxe/tcp.h
index e2753120..264ec29b 100644
--- a/src/include/gpxe/tcp.h
+++ b/src/include/gpxe/tcp.h
@@ -9,7 +9,6 @@
  *
  */
 
-#include "latch.h"
 #include <gpxe/tcpip.h>
 
 /**
diff --git a/src/include/gpxe/timer.h b/src/include/gpxe/timer.h
new file mode 100644
index 00000000..4a4cf5b2
--- /dev/null
+++ b/src/include/gpxe/timer.h
@@ -0,0 +1,32 @@
+#ifndef	GPXE_TIMER_H
+#define GPXE_TIMER_H
+
+#include <stddef.h>
+
+typedef uint32_t tick_t;
+
+#define MSECS_IN_SEC (1000)
+#define USECS_IN_SEC (1000*1000)
+#define USECS_IN_MSEC (1000)
+
+#define	TICKS_PER_SEC	USECS_IN_SEC
+
+tick_t currticks(void);
+
+void generic_currticks_udelay(unsigned int usecs);
+
+struct timer {
+	/* Returns zero on successful initialisation. */
+	int (*init) (void);
+
+	/* Return the current time, int mictoseconds since the beginning. */
+	tick_t (*currticks) (void);
+
+	/* Sleep for a few useconds. */
+	void (*udelay) (unsigned int useconds);
+};
+
+#define __timer(order) __table (struct timer, timers, order)
+
+#endif	/* GPXE_TIMER_H */
+
diff --git a/src/include/timer.h b/src/include/timer.h
deleted file mode 100644
index 0044d0c0..00000000
--- a/src/include/timer.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/* Defines for routines to implement a low-overhead timer for drivers */
-
- /*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2, or (at
- * your option) any later version.
- */
-
-#ifndef	TIMER_H
-#define TIMER_H
-
-/* Ports for the 8254 timer chip */
-#define	TIMER2_PORT	0x42
-#define	TIMER_MODE_PORT	0x43
-
-/* Meaning of the mode bits */
-#define	TIMER0_SEL	0x00
-#define	TIMER1_SEL	0x40
-#define	TIMER2_SEL	0x80
-#define	READBACK_SEL	0xC0
-
-#define	LATCH_COUNT	0x00
-#define	LOBYTE_ACCESS	0x10
-#define	HIBYTE_ACCESS	0x20
-#define	WORD_ACCESS	0x30
-
-#define	MODE0		0x00
-#define	MODE1		0x02
-#define	MODE2		0x04
-#define	MODE3		0x06
-#define	MODE4		0x08
-#define	MODE5		0x0A
-
-#define	BINARY_COUNT	0x00
-#define	BCD_COUNT	0x01
-
-/* Timers tick over at this rate */
-#define CLOCK_TICK_RATE	1193180U
-#define	TICKS_PER_MS	(CLOCK_TICK_RATE/1000)
-
-/* Parallel Peripheral Controller Port B */
-#define	PPC_PORTB	0x61
-
-/* Meaning of the port bits */
-#define	PPCB_T2OUT	0x20	/* Bit 5 */
-#define	PPCB_SPKR	0x02	/* Bit 1 */
-#define	PPCB_T2GATE	0x01	/* Bit 0 */
-
-/* Ticks must be between 0 and 65535 (0 == 65536)
-   because it is a 16 bit counter */
-extern void load_timer2(unsigned int ticks);
-extern inline int timer2_running(void);
-extern void waiton_timer2(unsigned int ticks);
-
-extern void ndelay(unsigned int nsecs);
-extern void udelay(unsigned int usecs);
-extern void mdelay(unsigned int msecs);
-
-
-#endif	/* TIMER_H */
diff --git a/src/include/unistd.h b/src/include/unistd.h
index 35dcf584..7c44a0ce 100644
--- a/src/include/unistd.h
+++ b/src/include/unistd.h
@@ -4,7 +4,7 @@
 #include <stddef.h>
 #include <stdarg.h>
 
-extern unsigned int sleep ( unsigned int seconds );
+unsigned int sleep ( unsigned int seconds );
 extern int execv ( const char *command, char * const argv[] );
 
 /**
@@ -22,4 +22,10 @@ extern int execv ( const char *command, char * const argv[] );
 		rc;							\
 	} )
 
+void udelay(unsigned int usecs);
+void mdelay(unsigned int msecs);
+
+#define usleep(x) udelay(x)
+
+
 #endif /* _UNISTD_H */