refactor: one more step towards arch-agnostic design

[lunaix-os.git] / lunaix-os / includes / hal / intc.h

diff --git a/lunaix-os/includes/hal/intc.h b/lunaix-os/includes/hal/intc.h
new file mode 100644 (file)
index 0000000..6a2828e
--- /dev/null
+++ b/lunaix-os/includes/hal/intc.h
@@ -0,0 +1,53 @@
+#ifndef __LUNAIX_INTC_H
+#define __LUNAIX_INTC_H
+
+#include <lunaix/types.h>
+
+#define IRQ_TRIG_EDGE 0b0
+#define IRQ_TRIG_LEVEL 0b1
+
+#define IRQ_TYPE_FIXED (0b01 << 1)
+#define IRQ_TYPE_NMI (0b11 << 1)
+#define IRQ_TYPE (0b11 << 1)
+
+#define IRQ_VE_HI (0b1 << 3)
+#define IRQ_VE_LO (0b0 << 3)
+
+#define IRQ_DEFAULT (IRQ_TRIG_EDGE | IRQ_TYPE_FIXED | IRQ_VE_HI)
+
+struct intc_context
+{
+    char* name;
+    void* data;
+
+    void (*irq_attach)(struct intc_context*,
+                       int irq,
+                       int iv,
+                       cpu_t dest,
+                       u32_t flags);
+    void (*notify_eoi)(struct intc_context*, cpu_t id, int iv);
+};
+
+void
+intc_init();
+
+void
+intc_irq_attach(int irq, int iv, cpu_t dest, u32_t flags);
+
+/**
+ * @brief Notify end of interrupt event
+ *
+ * @param id
+ */
+void
+intc_notify_eoi(cpu_t id, int iv);
+
+/**
+ * @brief Notify end of scheduling event
+ *
+ * @param id
+ */
+void
+intc_notify_eos(cpu_t id);
+
+#endif /* __LUNAIX_INTC_H */