From: Stephen Warren <swarren@nvidia.com>
Date: Mon, 5 May 2014 16:40:15 +0000 (-0600)
Subject: ums: move IO support code to common location
X-Git-Tag: submit/tizen/20160318.071304~257
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0f30f586a0a7fc37af4d69b7388baa84c8dcb00e;p=profile%2Fcommon%2Fplatform%2Fkernel%2Fu-boot-artik.git

ums: move IO support code to common location

There's nothing Samsung-/board-specfic about the implementation of
ums_init(). Move the code into cmd_usb_mass_storage.c, so that it can
be shared by any user of that command.

Cc: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>

Conflicts:
	board/samsung/common/Makefile
	board/samsung/common/ums.c
---

diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c
deleted file mode 100644
index 1f7dda436..000000000
--- a/board/samsung/common/ums.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2013 Samsung Electronics
- * Lukasz Majewski <l.majewski@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <usb_mass_storage.h>
-#include <mmc.h>
-#include <part.h>
-
-static int ums_read_sector(struct ums *ums_dev,
-			   ulong start, lbaint_t blkcnt, void *buf)
-{
-	block_dev_desc_t *block_dev = ums_dev->block_dev;
-	lbaint_t blkstart = start + ums_dev->start_sector;
-	int dev_num = block_dev->dev;
-
-	return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
-}
-
-static int ums_write_sector(struct ums *ums_dev,
-			    ulong start, lbaint_t blkcnt, const void *buf)
-{
-	block_dev_desc_t *block_dev = ums_dev->block_dev;
-	lbaint_t blkstart = start + ums_dev->start_sector;
-	int dev_num = block_dev->dev;
-
-	return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
-}
-
-static struct ums ums_dev = {
-	.read_sector = ums_read_sector,
-	.write_sector = ums_write_sector,
-	.name = "UMS disk",
-};
-
-static struct ums *ums_disk_init(struct mmc *mmc)
-{
-	uint64_t mmc_end_sector = mmc->capacity / SECTOR_SIZE;
-
-	if (!mmc_end_sector) {
-		error("MMC capacity is not valid");
-		return NULL;
-	}
-
-	ums_dev.block_dev = &mmc->block_dev;
-	ums_dev.start_sector = 0;
-	ums_dev.num_sectors = mmc_end_sector;
-
-	printf("UMS: disk start sector: %#x, count: %#x\n",
-	       ums_dev.start_sector, ums_dev.num_sectors);
-
-	return &ums_dev;
-}
-
-struct ums *ums_init(unsigned int dev_num)
-{
-	struct mmc *mmc = find_mmc_device(dev_num);
-
-	if (!mmc || mmc_init(mmc))
-		return NULL;
-	return ums_disk_init(mmc);
-}
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c
index 1cd497270..91368e384 100644
--- a/common/cmd_usb_mass_storage.c
+++ b/common/cmd_usb_mass_storage.c
@@ -22,9 +22,55 @@
 #include <common.h>
 #include <command.h>
 #include <g_dnl.h>
+#include <mmc.h>
+#include <part.h>
 #include <usb.h>
 #include <usb_mass_storage.h>
 
+static int ums_read_sector(struct ums *ums_dev,
+			   ulong start, lbaint_t blkcnt, void *buf)
+{
+	block_dev_desc_t *block_dev = ums_dev->block_dev;
+	lbaint_t blkstart = start + ums_dev->start_sector;
+	int dev_num = block_dev->dev;
+
+	return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
+}
+
+static int ums_write_sector(struct ums *ums_dev,
+			    ulong start, lbaint_t blkcnt, const void *buf)
+{
+	block_dev_desc_t *block_dev = ums_dev->block_dev;
+	lbaint_t blkstart = start + ums_dev->start_sector;
+	int dev_num = block_dev->dev;
+
+	return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
+}
+
+static struct ums ums_dev = {
+	.read_sector = ums_read_sector,
+	.write_sector = ums_write_sector,
+	.name = "UMS disk",
+};
+
+struct ums *ums_init(unsigned int dev_num)
+{
+	struct mmc *mmc = NULL;
+
+	mmc = find_mmc_device(dev_num);
+	if (!mmc || mmc_init(mmc))
+		return NULL;
+
+	ums_dev.block_dev = &mmc->block_dev;
+	ums_dev.start_sector = 0;
+	ums_dev.num_sectors = mmc->capacity / SECTOR_SIZE;
+
+	printf("UMS: disk start sector: %#x, count: %#x\n",
+	       ums_dev.start_sector, ums_dev.num_sectors);
+
+	return &ums_dev;
+}
+
 int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
 			       int argc, char * const argv[])
 {
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h
index 11ff05560..3553ecc02 100644
--- a/include/usb_mass_storage.h
+++ b/include/usb_mass_storage.h
@@ -43,7 +43,6 @@ extern struct ums *ums;
 
 int fsg_init(struct ums *);
 void fsg_cleanup(void);
-struct ums *ums_init(unsigned int);
 int fsg_main_thread(void *);
 int fsg_add(struct usb_configuration *c);
 #endif /* __USB_MASS_STORAGE_H__ */