[U-Boot] [PATCH v2 4/7] dfu: MMC specific routines for DFU operation

[Lukasz Majewski]

Support for MMC storage devices to work with DFU framework.

Signed-off-by: Lukasz Majewski <l.majewski at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
Cc: Marek Vasut <marex at denx.de>

---
Changes for v2:
- None
---
 drivers/dfu/Makefile  |    1 +
 drivers/dfu/dfu_mmc.c |  126 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 127 insertions(+), 0 deletions(-)
 create mode 100644 drivers/dfu/dfu_mmc.c

diff --git a/drivers/dfu/Makefile b/drivers/dfu/Makefile
index 7736485..7b717bc 100644
--- a/drivers/dfu/Makefile
+++ b/drivers/dfu/Makefile
@@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk
 LIB	= $(obj)libdfu.o
 
 COBJS-$(CONFIG_DFU_FUNCTION) += dfu.o
+COBJS-$(CONFIG_DFU_MMC) += dfu_mmc.o
 
 SRCS    := $(COBJS-y:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS-y))
diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c
new file mode 100644
index 0000000..3151fbc
--- /dev/null
+++ b/drivers/dfu/dfu_mmc.c
@@ -0,0 +1,126 @@
+/*
+ * dfu.c -- DFU back-end routines
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * authors: Andrzej Pietrasiewicz <andrzej.p at samsung.com>
+ *	    Lukasz Majewski <l.majewski at 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
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <dfu.h>
+
+int dfu_write_medium_mmc(struct dfu_entity *dfu, void *buf, long *len)
+{
+	ALLOC_CACHE_ALIGN_BUFFER(char, cmd_buf, DFU_CMD_BUF_SIZE);
+
+	memset(cmd_buf, '\0', sizeof(cmd_buf));
+
+	switch (dfu->layout) {
+	case RAW_ADDR:
+		sprintf(cmd_buf, "mmc write 0x%x %x %x", (unsigned int) buf,
+			dfu->data.mmc.lba_start, dfu->data.mmc.lba_size);
+		break;
+	case FAT:
+		sprintf(cmd_buf, "fatwrite mmc %d:%d 0x%x %s %lx",
+			dfu->data.mmc.dev, dfu->data.mmc.part,
+			(unsigned int) buf, dfu->name, *len);
+		break;
+	default:
+		printf("%s: Wrong layout!\n", __func__);
+	}
+
+	debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
+	run_command(cmd_buf, 0);
+
+	return 0;
+}
+
+int dfu_read_medium_mmc(struct dfu_entity *dfu, void *buf, long *len)
+{
+	ALLOC_CACHE_ALIGN_BUFFER(char, cmd_buf, DFU_CMD_BUF_SIZE);
+	char *str_env = NULL;
+	int ret = 0;
+
+	memset(cmd_buf, '\0', sizeof(cmd_buf));
+
+	switch (dfu->layout) {
+	case RAW_ADDR:
+		sprintf(cmd_buf, "mmc read 0x%x %x %x", (unsigned int) buf,
+			dfu->data.mmc.lba_start, dfu->data.mmc.lba_size);
+
+		*len = dfu->data.mmc.lba_blk_size * dfu->data.mmc.lba_size;
+		break;
+	case FAT:
+		sprintf(cmd_buf, "fatload mmc %d:%d 0x%x %s",
+			dfu->data.mmc.dev, dfu->data.mmc.part,
+			(unsigned int) buf, dfu->name);
+		break;
+	default:
+		printf("%s: Wrong layout!\n", __func__);
+	}
+
+	debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
+
+	ret = run_command(cmd_buf, 0);
+	if (ret) {
+		puts("dfu: Read error!\n");
+		return ret;
+	}
+
+	if (dfu->layout != RAW_ADDR) {
+		str_env = getenv("filesize");
+		if (str_env == NULL) {
+			puts("dfu: Wrong file size!\n");
+			return -1;
+		}
+
+		*len = simple_strtoul(str_env, NULL, 16);
+	}
+	return ret;
+}
+
+int dfu_fill_entity_mmc(struct dfu_entity *dfu, char* s)
+{
+	char *st = NULL;
+	int n = 0;
+
+	dfu->dev_type = MMC;
+	st = dfu_extract_token(&s, &n);
+
+	if (!strncmp(st, "mmc", n)) {
+		dfu->layout = RAW_ADDR;
+
+		dfu->data.mmc.lba_start = simple_strtoul(s, &s, 16);
+		dfu->data.mmc.lba_size = simple_strtoul(++s, &s, 16);
+		dfu->data.mmc.lba_blk_size = get_mmc_blk_size(dfu->dev_num);
+
+	} else if (!strncmp(st, "fat", n)) {
+		dfu->layout = FAT;
+
+		dfu->data.mmc.dev = simple_strtoul(s, &s, 10);
+		dfu->data.mmc.part = simple_strtoul(++s, &s, 10);
+
+	} else {
+		printf("%s: Wrong memory layout!\n", __func__);
+	}
+
+	dfu->read_medium = dfu_read_medium_mmc;
+	dfu->write_medium = dfu_write_medium_mmc;
+
+	return 0;
+}
-- 
1.7.2.3