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Diffstat (limited to 'drivers/io/vexpress_nor/io_vexpress_nor_internal.h')
-rw-r--r--drivers/io/vexpress_nor/io_vexpress_nor_internal.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/io/vexpress_nor/io_vexpress_nor_internal.h b/drivers/io/vexpress_nor/io_vexpress_nor_internal.h
new file mode 100644
index 000000000..e06d492ed
--- /dev/null
+++ b/drivers/io/vexpress_nor/io_vexpress_nor_internal.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2018, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __IO_VEXPRESS_NOR_INTERNAL_H__
+#define __IO_VEXPRESS_NOR_INTERNAL_H__
+
+#include <io_driver.h>
+#include <io_nor_flash.h>
+#include <io_storage.h>
+
+#define IS_FLASH_ADDRESS_BLOCK_ALIGNED(fp, addr) \
+ (((addr) & ((fp)->block_spec->block_size - 1)) == 0)
+
+/* As we need to be able to keep state for seek, only one file can be open
+ * at a time. Make this a structure and point to the entity->info. When we
+ * can malloc memory we can change this to support more open files.
+ */
+typedef struct {
+ /* Use the 'in_use' flag as any value for base and file_pos could be
+ * valid.
+ */
+ int in_use;
+ uintptr_t base;
+ size_t file_pos;
+
+ /* Definition of the flash block device */
+ const io_nor_flash_spec_t *block_spec;
+} file_state_t;
+
+int flash_block_write(file_state_t *fp, uint32_t address,
+ const uintptr_t buffer, size_t *written);
+
+int flash_partial_write(file_state_t *fp, uint32_t address,
+ const uintptr_t buffer, size_t length, size_t *written);
+
+#endif /* __IO_VEXPRESS_NOR_INTERNAL_H__ */