linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / include / asm-i386 / timer.h

diff --git a/include/asm-i386/timer.h b/include/asm-i386/timer.h
index d0ebd05..aed1643 100644 (file)
--- a/include/asm-i386/timer.h
+++ b/include/asm-i386/timer.h
@@ -3,11 +3,68 @@
 #include <linux/init.h>
 #include <linux/pm.h>
 
+/**
+ * struct timer_ops - used to define a timer source
+ *
+ * @name: name of the timer.
+ * @init: Probes and initializes the timer. Takes clock= override 
+ *        string as an argument. Returns 0 on success, anything else
+ *        on failure.
+ * @mark_offset: called by the timer interrupt.
+ * @get_offset:  called by gettimeofday(). Returns the number of microseconds
+ *               since the last timer interupt.
+ * @monotonic_clock: returns the number of nanoseconds since the init of the
+ *                   timer.
+ * @delay: delays this many clock cycles.
+ */
+struct timer_opts {
+       char* name;
+       void (*mark_offset)(void);
+       unsigned long (*get_offset)(void);
+       unsigned long long (*monotonic_clock)(void);
+       void (*delay)(unsigned long);
+       unsigned long (*read_timer)(void);
+       int (*suspend)(pm_message_t state);
+       int (*resume)(void);
+};
+
+struct init_timer_opts {
+       int (*init)(char *override);
+       struct timer_opts *opts;
+};
+
 #define TICK_SIZE (tick_nsec / 1000)
+
+extern struct timer_opts* __init select_timer(void);
+extern void clock_fallback(void);
 void setup_pit_timer(void);
+
 /* Modifiers for buggy PIT handling */
+
 extern int pit_latch_buggy;
+
+extern struct timer_opts *cur_timer;
 extern int timer_ack;
+
+/* list of externed timers */
+extern struct timer_opts timer_none;
+extern struct timer_opts timer_pit;
+extern struct init_timer_opts timer_pit_init;
+extern struct init_timer_opts timer_tsc_init;
+#ifdef CONFIG_X86_CYCLONE_TIMER
+extern struct init_timer_opts timer_cyclone_init;
+#endif
+
+extern unsigned long calibrate_tsc(void);
+extern unsigned long read_timer_tsc(void);
+extern void init_cpu_khz(void);
 extern int recalibrate_cpu_khz(void);
+#ifdef CONFIG_HPET_TIMER
+extern struct init_timer_opts timer_hpet_init;
+extern unsigned long calibrate_tsc_hpet(unsigned long *tsc_hpet_quotient_ptr);
+#endif
 
+#ifdef CONFIG_X86_PM_TIMER
+extern struct init_timer_opts timer_pmtmr_init;
+#endif
 #endif