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-rw-r--r--software/demo_gpio/plic_driver.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/software/demo_gpio/plic_driver.h b/software/demo_gpio/plic_driver.h
new file mode 100644
index 0000000..66410be
--- /dev/null
+++ b/software/demo_gpio/plic_driver.h
@@ -0,0 +1,46 @@
+// See LICENSE file for licence details
+
+#ifndef PLIC_DRIVER_H
+#define PLIC_DRIVER_H
+
+#include "platform.h"
+
+typedef struct __plic_instance_t
+{
+ uintptr_t base_addr;
+
+ uint32_t num_sources;
+ uint32_t num_priorities;
+
+} plic_instance_t;
+
+typedef uint32_t plic_source;
+typedef uint32_t plic_priority;
+typedef uint32_t plic_threshold;
+
+void PLIC_init (
+ plic_instance_t * this_plic,
+ uintptr_t base_addr,
+ uint32_t num_sources,
+ uint32_t num_priorities
+ );
+
+void PLIC_set_threshold (plic_instance_t * this_plic,
+ plic_threshold threshold);
+
+void PLIC_enable_interrupt (plic_instance_t * this_plic,
+ plic_source source);
+
+void PLIC_disable_interrupt (plic_instance_t * this_plic,
+ plic_source source);
+
+void PLIC_set_priority (plic_instance_t * this_plic,
+ plic_source source,
+ plic_priority priority);
+
+plic_source PLIC_claim_interrupt(plic_instance_t * this_plic);
+
+void PLIC_complete_interrupt(plic_instance_t * this_plic,
+ plic_source source);
+
+#endif