Add stm32_private.h.

This will hold STM32-related things that I'm not sure are well-thought
out enough to go into <libmaple/stm32.h>. Currently, it contains an
accessor routine that tells you the purpose of the memory block
containing an address.

Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/libmaple/stm32_private.h b/libmaple/stm32_private.h
new file mode 100644
index 0000000..427417a
--- /dev/null
+++ b/libmaple/stm32_private.h
@@ -0,0 +1,45 @@
+/******************************************************************************
+ * The MIT License
+ *
+ * Copyright (c) 2012 LeafLabs, LLC.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*****************************************************************************/
+
+#ifndef _LIBMAPLE_STM32_PRIVATE_H_
+#define _LIBMAPLE_STM32_PRIVATE_H_
+
+typedef enum stm32_mem_block_purpose {
+    STM32_BLOCK_CODE,
+    STM32_BLOCK_SRAM,
+    STM32_BLOCK_PERIPH,
+    STM32_BLOCK_FSMC_1_2,
+    STM32_BLOCK_FSMC_3_4,
+    STM32_BLOCK_FSMC_REG,
+    STM32_BLOCK_UNUSED,
+    STM32_BLOCK_CORTEX_INTERNAL,
+} stm32_mem_block_purpose;
+
+static inline stm32_mem_block_purpose stm32_block_purpose(void *addr) {
+    return (stm32_mem_block_purpose)((unsigned)addr >> 29);
+}
+
+#endif