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-rw-r--r--include/spi_flash.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/include/spi_flash.h b/include/spi_flash.h
new file mode 100644
index 0000000..de4f174
--- /dev/null
+++ b/include/spi_flash.h
@@ -0,0 +1,70 @@
+/*
+ * Interface to SPI flash
+ *
+ * Copyright (C) 2008 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#ifndef _SPI_FLASH_H_
+#define _SPI_FLASH_H_
+
+#include <spi.h>
+
+struct spi_flash_region {
+ unsigned int count;
+ unsigned int size;
+};
+
+struct spi_flash {
+ struct spi_slave *spi;
+
+ const char *name;
+
+ u32 size;
+
+ int (*read)(struct spi_flash *flash, u32 offset,
+ size_t len, void *buf);
+ int (*write)(struct spi_flash *flash, u32 offset,
+ size_t len, const void *buf);
+ int (*erase)(struct spi_flash *flash, u32 offset,
+ size_t len);
+};
+
+struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int spi_mode);
+void spi_flash_free(struct spi_flash *flash);
+
+static inline int spi_flash_read(struct spi_flash *flash, u32 offset,
+ size_t len, void *buf)
+{
+ return flash->read(flash, offset, len, buf);
+}
+
+static inline int spi_flash_write(struct spi_flash *flash, u32 offset,
+ size_t len, const void *buf)
+{
+ return flash->write(flash, offset, len, buf);
+}
+
+static inline int spi_flash_erase(struct spi_flash *flash, u32 offset,
+ size_t len)
+{
+ return flash->erase(flash, offset, len);
+}
+
+#endif /* _SPI_FLASH_H_ */