From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001
From: James <>
Date: Wed, 4 Nov 2015 11:49:21 +0000
Subject: trunk-47381

---
 .../300-support-env-in-ubivol-chardev.patch        | 163 +++++++++++++++++++++
 1 file changed, 163 insertions(+)
 create mode 100644 package/boot/uboot-envtools/patches/300-support-env-in-ubivol-chardev.patch

(limited to 'package/boot/uboot-envtools/patches/300-support-env-in-ubivol-chardev.patch')

diff --git a/package/boot/uboot-envtools/patches/300-support-env-in-ubivol-chardev.patch b/package/boot/uboot-envtools/patches/300-support-env-in-ubivol-chardev.patch
new file mode 100644
index 0000000..75d3804
--- /dev/null
+++ b/package/boot/uboot-envtools/patches/300-support-env-in-ubivol-chardev.patch
@@ -0,0 +1,163 @@
+From 6e2630a0fc872d0db34157972f6dc3941f6d66dd Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Mon, 19 May 2014 21:38:01 +0200
+Subject: [PATCH] tools/env: add support for env in ubi volume chardev
+
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+---
+ tools/env/Makefile |  5 ++++
+ tools/env/fw_env.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++-------
+ 2 files changed, 71 insertions(+), 10 deletions(-)
+
+--- a/tools/env/Makefile
++++ b/tools/env/Makefile
+@@ -24,6 +24,13 @@ ifeq ($(MTD_VERSION),old)
+ HOST_EXTRACFLAGS += -DMTD_OLD
+ endif
+ 
++ifeq ($(UBI),y)
++HOST_EXTRACFLAGS += -DUBI
++HOST_LOADLIBES = "-Wl,--gc-sections,-lubi-utils"
++else
++HOST_LOADLIBES = "-Wl,--gc-sections"
++endif
++
+ always := fw_printenv
+ hostprogs-y := fw_printenv
+ 
+--- a/tools/env/fw_env.c
++++ b/tools/env/fw_env.c
+@@ -31,6 +31,9 @@
+ # include <mtd/mtd-user.h>
+ #endif
+ 
++#ifdef UBI
++# include <libubi.h>
++#endif
+ #include "fw_env.h"
+ 
+ #include <aes.h>
+@@ -811,6 +814,11 @@ static int flash_write_buf (int dev, int
+ 	off_t top_of_range;	/* end of the last block we may use */
+ 	loff_t blockstart;	/* running start of the current block -
+ 				   MEMGETBADBLOCK needs 64 bits */
++#ifdef UBI
++	libubi_t *libubi = NULL;/* pointer to libubi struct */
++#else
++	void *libubi = NULL;
++#endif
+ 	int rc;
+ 
+ 	/*
+@@ -916,7 +924,30 @@ static int flash_write_buf (int dev, int
+ 			continue;
+ 		}
+ 
+-		if (mtd_type != MTD_ABSENT) {
++#ifdef UBI
++		if (mtd_type == MTD_UBIVOLUME) {
++			struct ubi_vol_info volinfo;
++			libubi = libubi_open();
++			if (libubi)
++				rc = ubi_get_vol_info(libubi,
++					DEVNAME(dev_current), &volinfo);
++			if (libubi && !rc) {
++				erasesize = volinfo.leb_size;
++				int leb = blockstart / erasesize;
++				if (volinfo.type != UBI_STATIC_VOLUME)
++					rc = ubi_leb_change_start(libubi, fd,
++						leb, erasesize);
++				else
++					rc = ubi_update_start(libubi, fd,
++						erasesize);
++			}
++			if (libubi && rc) {
++				libubi_close(libubi);
++				libubi = NULL;
++			}
++		}
++#endif
++		if (!libubi && mtd_type != MTD_ABSENT) {
+ 			erase.start = blockstart;
+ 			ioctl(fd, MEMUNLOCK, &erase);
+ 			/* These do not need an explicit erase cycle */
+@@ -933,7 +964,8 @@ static int flash_write_buf (int dev, int
+ 			fprintf (stderr,
+ 				 "Seek error on %s: %s\n",
+ 				 DEVNAME (dev), strerror (errno));
+-			return -1;
++			processed = -1;
++			goto out;
+ 		}
+ 
+ #ifdef DEBUG
+@@ -943,10 +975,11 @@ static int flash_write_buf (int dev, int
+ 		if (write (fd, data + processed, erasesize) != erasesize) {
+ 			fprintf (stderr, "Write error on %s: %s\n",
+ 				 DEVNAME (dev), strerror (errno));
+-			return -1;
++			processed = -1;
++			goto out;
+ 		}
+ 
+-		if (mtd_type != MTD_ABSENT)
++		if (!libubi && mtd_type != MTD_ABSENT)
+ 			ioctl(fd, MEMLOCK, &erase);
+ 
+ 		processed  += erasesize;
+@@ -957,6 +990,11 @@ static int flash_write_buf (int dev, int
+ 	if (write_total > count)
+ 		free (data);
+ 
++out:
++#ifdef UBI
++	if (libubi)
++		libubi_close(libubi);
++#endif
+ 	return processed;
+ }
+ 
+@@ -1068,12 +1106,8 @@ static int flash_read (int fd)
+ 
+ 	if (S_ISCHR(st.st_mode)) {
+ 		rc = ioctl(fd, MEMGETINFO, &mtdinfo);
+-		if (rc < 0) {
+-			fprintf(stderr, "Cannot get MTD information for %s\n",
+-				DEVNAME(dev_current));
+-			return -1;
+-		}
+-		if (mtdinfo.type != MTD_NORFLASH &&
++		if (!rc &&
++		    mtdinfo.type != MTD_NORFLASH &&
+ 		    mtdinfo.type != MTD_NANDFLASH &&
+ 		    mtdinfo.type != MTD_DATAFLASH &&
+ 		    mtdinfo.type != MTD_UBIVOLUME) {
+@@ -1081,6 +1115,28 @@ static int flash_read (int fd)
+ 				 mtdinfo.type, DEVNAME(dev_current));
+ 			return -1;
+ 		}
++#ifdef UBI
++		if (rc) {
++			libubi_t *libubi;
++			struct ubi_vol_info volinfo;
++			libubi = libubi_open();
++			if (!libubi)
++				return -ENOMEM;
++
++			rc = ubi_get_vol_info(libubi, DEVNAME(dev_current),
++						&volinfo);
++			if (rc) {
++				libubi_close(libubi);
++				return -ENODEV;
++			}
++			memset(&mtdinfo, 0, sizeof(mtdinfo));
++			mtdinfo.type = MTD_UBIVOLUME;
++			mtdinfo.size = volinfo.data_bytes;
++			mtdinfo.erasesize = volinfo.leb_size;
++			mtdinfo.writesize = volinfo.leb_size;
++			libubi_close(libubi);
++		}
++#endif
+ 	} else {
+ 		memset(&mtdinfo, 0, sizeof(mtdinfo));
+ 		mtdinfo.type = MTD_ABSENT;
-- 
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