Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/hpet.h b/include/linux/hpet.h
new file mode 100644
index 0000000..2723819
--- /dev/null
+++ b/include/linux/hpet.h
@@ -0,0 +1,136 @@
+#ifndef __HPET__
+#define __HPET__ 1
+
+#include <linux/compiler.h>
+
+/*
+ * Offsets into HPET Registers
+ */
+
+struct hpet {
+ u64 hpet_cap; /* capabilities */
+ u64 res0; /* reserved */
+ u64 hpet_config; /* configuration */
+ u64 res1; /* reserved */
+ u64 hpet_isr; /* interrupt status reg */
+ u64 res2[25]; /* reserved */
+ union { /* main counter */
+ u64 _hpet_mc64;
+ u32 _hpet_mc32;
+ unsigned long _hpet_mc;
+ } _u0;
+ u64 res3; /* reserved */
+ struct hpet_timer {
+ u64 hpet_config; /* configuration/cap */
+ union { /* timer compare register */
+ u64 _hpet_hc64;
+ u32 _hpet_hc32;
+ unsigned long _hpet_compare;
+ } _u1;
+ u64 hpet_fsb[2]; /* FSB route */
+ } hpet_timers[1];
+};
+
+#define hpet_mc _u0._hpet_mc
+#define hpet_compare _u1._hpet_compare
+
+#define HPET_MAX_TIMERS (32)
+
+/*
+ * HPET general capabilities register
+ */
+
+#define HPET_COUNTER_CLK_PERIOD_MASK (0xffffffff00000000ULL)
+#define HPET_COUNTER_CLK_PERIOD_SHIFT (32UL)
+#define HPET_VENDOR_ID_MASK (0x00000000ffff0000ULL)
+#define HPET_VENDOR_ID_SHIFT (16ULL)
+#define HPET_LEG_RT_CAP_MASK (0x8000)
+#define HPET_COUNTER_SIZE_MASK (0x2000)
+#define HPET_NUM_TIM_CAP_MASK (0x1f00)
+#define HPET_NUM_TIM_CAP_SHIFT (8ULL)
+
+/*
+ * HPET general configuration register
+ */
+
+#define HPET_LEG_RT_CNF_MASK (2UL)
+#define HPET_ENABLE_CNF_MASK (1UL)
+
+
+/*
+ * Timer configuration register
+ */
+
+#define Tn_INT_ROUTE_CAP_MASK (0xffffffff00000000ULL)
+#define Tn_INI_ROUTE_CAP_SHIFT (32UL)
+#define Tn_FSB_INT_DELCAP_MASK (0x8000UL)
+#define Tn_FSB_INT_DELCAP_SHIFT (15)
+#define Tn_FSB_EN_CNF_MASK (0x4000UL)
+#define Tn_FSB_EN_CNF_SHIFT (14)
+#define Tn_INT_ROUTE_CNF_MASK (0x3e00UL)
+#define Tn_INT_ROUTE_CNF_SHIFT (9)
+#define Tn_32MODE_CNF_MASK (0x0100UL)
+#define Tn_VAL_SET_CNF_MASK (0x0040UL)
+#define Tn_SIZE_CAP_MASK (0x0020UL)
+#define Tn_PER_INT_CAP_MASK (0x0010UL)
+#define Tn_TYPE_CNF_MASK (0x0008UL)
+#define Tn_INT_ENB_CNF_MASK (0x0004UL)
+#define Tn_INT_TYPE_CNF_MASK (0x0002UL)
+
+/*
+ * Timer FSB Interrupt Route Register
+ */
+
+#define Tn_FSB_INT_ADDR_MASK (0xffffffff00000000ULL)
+#define Tn_FSB_INT_ADDR_SHIFT (32UL)
+#define Tn_FSB_INT_VAL_MASK (0x00000000ffffffffULL)
+
+struct hpet_info {
+ unsigned long hi_ireqfreq; /* Hz */
+ unsigned long hi_flags; /* information */
+ unsigned short hi_hpet;
+ unsigned short hi_timer;
+};
+
+#define HPET_INFO_PERIODIC 0x0001 /* timer is periodic */
+
+#define HPET_IE_ON _IO('h', 0x01) /* interrupt on */
+#define HPET_IE_OFF _IO('h', 0x02) /* interrupt off */
+#define HPET_INFO _IOR('h', 0x03, struct hpet_info)
+#define HPET_EPI _IO('h', 0x04) /* enable periodic */
+#define HPET_DPI _IO('h', 0x05) /* disable periodic */
+#define HPET_IRQFREQ _IOW('h', 0x6, unsigned long) /* IRQFREQ usec */
+
+/*
+ * exported interfaces
+ */
+
+struct hpet_task {
+ void (*ht_func) (void *);
+ void *ht_data;
+ void *ht_opaque;
+};
+
+struct hpet_data {
+ unsigned long hd_phys_address;
+ void __iomem *hd_address;
+ unsigned short hd_nirqs;
+ unsigned short hd_flags;
+ unsigned int hd_state; /* timer allocated */
+ unsigned int hd_irq[HPET_MAX_TIMERS];
+};
+
+#define HPET_DATA_PLATFORM 0x0001 /* platform call to hpet_alloc */
+
+static inline void hpet_reserve_timer(struct hpet_data *hd, int timer)
+{
+ hd->hd_state |= (1 << timer);
+ return;
+}
+
+int hpet_alloc(struct hpet_data *);
+int hpet_register(struct hpet_task *, int);
+int hpet_unregister(struct hpet_task *);
+int hpet_control(struct hpet_task *, unsigned int, unsigned long);
+
+#endif /* !__HPET__ */