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authorLukasz Majewski <l.majewski@samsung.com>2012-08-06 14:41:07 +0200
committerMarek Vasut <marex@denx.de>2012-09-01 16:21:50 +0200
commitf22b11c10d16d71b7f96fd19cd0062724428bf88 (patch)
treee8a65f22ad14c288d931e114f4e9beeaa32b0c0a /include/dfu.h
parentb819ddbf56da304120b72643e97e00e12815e777 (diff)
dfu: DFU backend implementation
New, separate driver at ./drivers/dfu has been added. It allows platform and storage independent operation of DFU. It has been extended to use new MMC level of command abstraction. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Marek Vasut <marex@denx.de>
Diffstat (limited to 'include/dfu.h')
-rw-r--r--include/dfu.h103
1 files changed, 103 insertions, 0 deletions
diff --git a/include/dfu.h b/include/dfu.h
new file mode 100644
index 0000000000..5350d79450
--- /dev/null
+++ b/include/dfu.h
@@ -0,0 +1,103 @@
+/*
+ * dfu.h - DFU flashable area description
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 __DFU_ENTITY_H_
+#define __DFU_ENTITY_H_
+
+#include <common.h>
+#include <linux/list.h>
+#include <mmc.h>
+
+enum dfu_device_type {
+ DFU_DEV_MMC = 1,
+ DFU_DEV_ONENAND,
+ DFU_DEV_NAND,
+};
+
+enum dfu_layout {
+ DFU_RAW_ADDR = 1,
+ DFU_FS_FAT,
+ DFU_FS_EXT2,
+ DFU_FS_EXT3,
+ DFU_FS_EXT4,
+};
+
+struct mmc_internal_data {
+ /* RAW programming */
+ unsigned int lba_start;
+ unsigned int lba_size;
+ unsigned int lba_blk_size;
+
+ /* FAT/EXT */
+ unsigned int dev;
+ unsigned int part;
+};
+
+static inline unsigned int get_mmc_blk_size(int dev)
+{
+ return find_mmc_device(dev)->read_bl_len;
+}
+
+#define DFU_NAME_SIZE 32
+#define DFU_CMD_BUF_SIZE 128
+#define DFU_DATA_BUF_SIZE (1024*1024*4) /* 4 MiB */
+
+struct dfu_entity {
+ char name[DFU_NAME_SIZE];
+ int alt;
+ void *dev_private;
+ int dev_num;
+ enum dfu_device_type dev_type;
+ enum dfu_layout layout;
+
+ union {
+ struct mmc_internal_data mmc;
+ } data;
+
+ int (*read_medium)(struct dfu_entity *dfu, void *buf, long *len);
+ int (*write_medium)(struct dfu_entity *dfu, void *buf, long *len);
+
+ struct list_head list;
+};
+
+int dfu_config_entities(char *s, char *interface, int num);
+void dfu_free_entities(void);
+void dfu_show_entities(void);
+int dfu_get_alt_number(void);
+const char *dfu_get_dev_type(enum dfu_device_type t);
+const char *dfu_get_layout(enum dfu_layout l);
+struct dfu_entity *dfu_get_entity(int alt);
+char *dfu_extract_token(char** e, int *n);
+
+int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
+int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
+/* Device specific */
+#ifdef CONFIG_DFU_MMC
+extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s);
+#else
+static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *s)
+{
+ puts("MMC support not available!\n");
+ return -1;
+}
+#endif
+#endif /* __DFU_ENTITY_H_ */