1 files changed, 64 insertions, 0 deletions
diff --git a/libopencm3/include/libopencm3/cm3/vector.h b/libopencm3/include/libopencm3/cm3/vector.h
new file mode 100644
index 0000000..17ebb15
--- /dev/null
+++ b/libopencm3/include/libopencm3/cm3/vector.h
@@ -0,0 +1,64 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2012 chrysn <chrysn@fsfe.org>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file
+ *
+ * Definitions for handling vector tables.
+ *
+ * This implements d0002_efm32_cortex-m3_reference_manual.pdf's figure 2.2
+ * (from the EFM32 documentation at
+ * http://www.energymicro.com/downloads/datasheets), and was seen analogously
+ * in other ARM implementations' libopencm3 files.
+ *
+ * The structure of the vector table is implemented independently of the system
+ * vector table starting at memory position 0x0, as it can be relocated to
+ * other memory locations too.
+ *
+ * The exact size of a vector interrupt table depends on the number of
+ * interrupts IRQ_COUNT, which is defined per family.
+ */
+
+#ifndef LIBOPENCM3_VECTOR_H
+#define LIBOPENCM3_VECTOR_H
+
+#include <libopencm3/cm3/common.h>
+#include <libopencm3/cm3/nvic.h>
+
+/** Type of an interrupt function. Only used to avoid hard-to-read function
+ * pointers in the efm32_vector_table_t struct. */
+typedef void (*vector_table_entry_t)(void);
+
+typedef struct {
+	unsigned int *initial_sp_value; /**< Initial stack pointer value. */
+	vector_table_entry_t reset;
+	vector_table_entry_t nmi;
+	vector_table_entry_t hard_fault;
+	vector_table_entry_t memory_manage_fault; /* not in CM0 */
+	vector_table_entry_t bus_fault;           /* not in CM0 */
+	vector_table_entry_t usage_fault;         /* not in CM0 */
+	vector_table_entry_t reserved_x001c[4];
+	vector_table_entry_t sv_call;
+	vector_table_entry_t debug_monitor;       /* not in CM0 */
+	vector_table_entry_t reserved_x0034;
+	vector_table_entry_t pend_sv;
+	vector_table_entry_t systick;
+	vector_table_entry_t irq[NVIC_IRQ_COUNT];
+} vector_table_t;
+
+#endif