[PATCH v3] decode mtd ioctls

Mike Frysinger vapier at gentoo.org
Thu Apr 5 02:19:58 UTC 2012


I got tired of figuring out mtd structures (which show up a lot
in the embedded space), so add decoders for those ioctls.

* defs.h (mtd_ioctl): New prototype.
(print_loff_t): Likewise.
* io.c (print_loff_t): Delete static keyword
* ioctl.c (ioctl_decode): Call mtd_ioctl when code is 'M'.
* Makefile.am (strace_SOURCES): Add mtd.c.
* mtd.c: New file.
* linux/mtd-abi.h: New file.

Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
v3
	- include local copy of mtd-abi.h and use it when host is old

 Makefile.am     |    2 +-
 defs.h          |    2 +
 io.c            |    2 +-
 ioctl.c         |    2 +
 linux/mtd-abi.h |  278 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 mtd.c           |  282 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 566 insertions(+), 2 deletions(-)
 create mode 100644 linux/mtd-abi.h
 create mode 100644 mtd.c

diff --git a/Makefile.am b/Makefile.am
index c775801..b7e8460 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -17,7 +17,7 @@ AM_CPPFLAGS = -I$(srcdir)/$(OS)/$(ARCH) -I$(srcdir)/$(OS) -I$(builddir)/$(OS)
 strace_SOURCES = strace.c syscall.c count.c util.c desc.c file.c ipc.c \
 		 io.c ioctl.c mem.c net.c process.c bjm.c quota.c \
 		 resource.c signal.c sock.c system.c term.c time.c \
-		 scsi.c stream.c block.c pathtrace.c
+		 scsi.c stream.c block.c pathtrace.c mtd.c
 noinst_HEADERS = defs.h
 
 EXTRA_DIST = $(man_MANS) errnoent.sh signalent.sh syscallent.sh ioctlsort.c \
diff --git a/defs.h b/defs.h
index 3348400..1ebbd29 100644
--- a/defs.h
+++ b/defs.h
@@ -545,6 +545,7 @@ extern void printsignal(int);
 extern void tprint_iov(struct tcb *, unsigned long, unsigned long, int decode_iov);
 extern void tprint_open_modes(mode_t);
 extern const char *sprint_open_modes(mode_t);
+extern void print_loff_t(struct tcb *, long);
 
 extern const struct ioctlent *ioctl_lookup(long);
 extern const struct ioctlent *ioctl_next_match(const struct ioctlent *);
@@ -555,6 +556,7 @@ extern int proc_ioctl(struct tcb *, int, int);
 extern int rtc_ioctl(struct tcb *, long, long);
 extern int scsi_ioctl(struct tcb *, long, long);
 extern int block_ioctl(struct tcb *, long, long);
+extern int mtd_ioctl(struct tcb *, long, long);
 
 extern int tv_nz(struct timeval *);
 extern int tv_cmp(struct timeval *, struct timeval *);
diff --git a/io.c b/io.c
index a7f6c29..5e697ec 100644
--- a/io.c
+++ b/io.c
@@ -261,7 +261,7 @@ sys_sendfile(struct tcb *tcp)
 	return 0;
 }
 
-static void
+void
 print_loff_t(struct tcb *tcp, long addr)
 {
 	loff_t offset;
diff --git a/ioctl.c b/ioctl.c
index a8055d5..8744b41 100644
--- a/ioctl.c
+++ b/ioctl.c
@@ -88,6 +88,8 @@ ioctl_decode(struct tcb *tcp, long code, long arg)
 		return block_ioctl(tcp, code, arg);
 	case 0x22:
 		return scsi_ioctl(tcp, code, arg);
+	case 'M':
+		return mtd_ioctl(tcp, code, arg);
 	default:
 		break;
 	}
diff --git a/linux/mtd-abi.h b/linux/mtd-abi.h
new file mode 100644
index 0000000..576e8c9
--- /dev/null
+++ b/linux/mtd-abi.h
@@ -0,0 +1,278 @@
+/*
+ * Copyright © 1999-2010 David Woodhouse <dwmw2 at infradead.org> et al.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __MTD_ABI_H__
+#define __MTD_ABI_H__
+
+#include <linux/types.h>
+
+struct erase_info_user {
+	__u32 start;
+	__u32 length;
+};
+
+struct erase_info_user64 {
+	__u64 start;
+	__u64 length;
+};
+
+struct mtd_oob_buf {
+	__u32 start;
+	__u32 length;
+	unsigned char *ptr;
+};
+
+struct mtd_oob_buf64 {
+	__u64 start;
+	__u32 pad;
+	__u32 length;
+	__u64 usr_ptr;
+};
+
+/**
+ * MTD operation modes
+ *
+ * @MTD_OPS_PLACE_OOB:	OOB data are placed at the given offset (default)
+ * @MTD_OPS_AUTO_OOB:	OOB data are automatically placed at the free areas
+ *			which are defined by the internal ecclayout
+ * @MTD_OPS_RAW:	data are transferred as-is, with no error correction;
+ *			this mode implies %MTD_OPS_PLACE_OOB
+ *
+ * These modes can be passed to ioctl(MEMWRITE) and are also used internally.
+ * See notes on "MTD file modes" for discussion on %MTD_OPS_RAW vs.
+ * %MTD_FILE_MODE_RAW.
+ */
+enum {
+	MTD_OPS_PLACE_OOB = 0,
+	MTD_OPS_AUTO_OOB = 1,
+	MTD_OPS_RAW = 2,
+};
+
+/**
+ * struct mtd_write_req - data structure for requesting a write operation
+ *
+ * @start:	start address
+ * @len:	length of data buffer
+ * @ooblen:	length of OOB buffer
+ * @usr_data:	user-provided data buffer
+ * @usr_oob:	user-provided OOB buffer
+ * @mode:	MTD mode (see "MTD operation modes")
+ * @padding:	reserved, must be set to 0
+ *
+ * This structure supports ioctl(MEMWRITE) operations, allowing data and/or OOB
+ * writes in various modes. To write to OOB-only, set @usr_data == NULL, and to
+ * write data-only, set @usr_oob == NULL. However, setting both @usr_data and
+ * @usr_oob to NULL is not allowed.
+ */
+struct mtd_write_req {
+	__u64 start;
+	__u64 len;
+	__u64 ooblen;
+	__u64 usr_data;
+	__u64 usr_oob;
+	__u8 mode;
+	__u8 padding[7];
+};
+
+#define MTD_ABSENT		0
+#define MTD_RAM			1
+#define MTD_ROM			2
+#define MTD_NORFLASH		3
+#define MTD_NANDFLASH		4
+#define MTD_DATAFLASH		6
+#define MTD_UBIVOLUME		7
+#define MTD_MLCNANDFLASH	8
+
+#define MTD_WRITEABLE		0x400	/* Device is writeable */
+#define MTD_BIT_WRITEABLE	0x800	/* Single bits can be flipped */
+#define MTD_NO_ERASE		0x1000	/* No erase necessary */
+#define MTD_POWERUP_LOCK	0x2000	/* Always locked after reset */
+
+/* Some common devices / combinations of capabilities */
+#define MTD_CAP_ROM		0
+#define MTD_CAP_RAM		(MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
+#define MTD_CAP_NORFLASH	(MTD_WRITEABLE | MTD_BIT_WRITEABLE)
+#define MTD_CAP_NANDFLASH	(MTD_WRITEABLE)
+
+/* Obsolete ECC byte placement modes (used with obsolete MEMGETOOBSEL) */
+#define MTD_NANDECC_OFF		0	// Switch off ECC (Not recommended)
+#define MTD_NANDECC_PLACE	1	// Use the given placement in the structure (YAFFS1 legacy mode)
+#define MTD_NANDECC_AUTOPLACE	2	// Use the default placement scheme
+#define MTD_NANDECC_PLACEONLY	3	// Use the given placement in the structure (Do not store ecc result on read)
+#define MTD_NANDECC_AUTOPL_USR 	4	// Use the given autoplacement scheme rather than using the default
+
+/* OTP mode selection */
+#define MTD_OTP_OFF		0
+#define MTD_OTP_FACTORY		1
+#define MTD_OTP_USER		2
+
+struct mtd_info_user {
+	__u8 type;
+	__u32 flags;
+	__u32 size;	/* Total size of the MTD */
+	__u32 erasesize;
+	__u32 writesize;
+	__u32 oobsize;	/* Amount of OOB data per block (e.g. 16) */
+	__u64 padding;	/* Old obsolete field; do not use */
+};
+
+struct region_info_user {
+	__u32 offset;		/* At which this region starts,
+				 * from the beginning of the MTD */
+	__u32 erasesize;	/* For this region */
+	__u32 numblocks;	/* Number of blocks in this region */
+	__u32 regionindex;
+};
+
+struct otp_info {
+	__u32 start;
+	__u32 length;
+	__u32 locked;
+};
+
+/*
+ * Note, the following ioctl existed in the past and was removed:
+ * #define MEMSETOOBSEL           _IOW('M', 9, struct nand_oobinfo)
+ * Try to avoid adding a new ioctl with the same ioctl number.
+ */
+
+/* Get basic MTD characteristics info (better to use sysfs) */
+#define MEMGETINFO		_IOR('M', 1, struct mtd_info_user)
+/* Erase segment of MTD */
+#define MEMERASE		_IOW('M', 2, struct erase_info_user)
+/* Write out-of-band data from MTD */
+#define MEMWRITEOOB		_IOWR('M', 3, struct mtd_oob_buf)
+/* Read out-of-band data from MTD */
+#define MEMREADOOB		_IOWR('M', 4, struct mtd_oob_buf)
+/* Lock a chip (for MTD that supports it) */
+#define MEMLOCK			_IOW('M', 5, struct erase_info_user)
+/* Unlock a chip (for MTD that supports it) */
+#define MEMUNLOCK		_IOW('M', 6, struct erase_info_user)
+/* Get the number of different erase regions */
+#define MEMGETREGIONCOUNT	_IOR('M', 7, int)
+/* Get information about the erase region for a specific index */
+#define MEMGETREGIONINFO	_IOWR('M', 8, struct region_info_user)
+/* Get info about OOB modes (e.g., RAW, PLACE, AUTO) - legacy interface */
+#define MEMGETOOBSEL		_IOR('M', 10, struct nand_oobinfo)
+/* Check if an eraseblock is bad */
+#define MEMGETBADBLOCK		_IOW('M', 11, __kernel_loff_t)
+/* Mark an eraseblock as bad */
+#define MEMSETBADBLOCK		_IOW('M', 12, __kernel_loff_t)
+/* Set OTP (One-Time Programmable) mode (factory vs. user) */
+#define OTPSELECT		_IOR('M', 13, int)
+/* Get number of OTP (One-Time Programmable) regions */
+#define OTPGETREGIONCOUNT	_IOW('M', 14, int)
+/* Get all OTP (One-Time Programmable) info about MTD */
+#define OTPGETREGIONINFO	_IOW('M', 15, struct otp_info)
+/* Lock a given range of user data (must be in mode %MTD_FILE_MODE_OTP_USER) */
+#define OTPLOCK			_IOR('M', 16, struct otp_info)
+/* Get ECC layout (deprecated) */
+#define ECCGETLAYOUT		_IOR('M', 17, struct nand_ecclayout_user)
+/* Get statistics about corrected/uncorrected errors */
+#define ECCGETSTATS		_IOR('M', 18, struct mtd_ecc_stats)
+/* Set MTD mode on a per-file-descriptor basis (see "MTD file modes") */
+#define MTDFILEMODE		_IO('M', 19)
+/* Erase segment of MTD (supports 64-bit address) */
+#define MEMERASE64		_IOW('M', 20, struct erase_info_user64)
+/* Write data to OOB (64-bit version) */
+#define MEMWRITEOOB64		_IOWR('M', 21, struct mtd_oob_buf64)
+/* Read data from OOB (64-bit version) */
+#define MEMREADOOB64		_IOWR('M', 22, struct mtd_oob_buf64)
+/* Check if chip is locked (for MTD that supports it) */
+#define MEMISLOCKED		_IOR('M', 23, struct erase_info_user)
+/*
+ * Most generic write interface; can write in-band and/or out-of-band in various
+ * modes (see "struct mtd_write_req"). This ioctl is not supported for flashes
+ * without OOB, e.g., NOR flash.
+ */
+#define MEMWRITE		_IOWR('M', 24, struct mtd_write_req)
+
+/*
+ * Obsolete legacy interface. Keep it in order not to break userspace
+ * interfaces
+ */
+struct nand_oobinfo {
+	__u32 useecc;
+	__u32 eccbytes;
+	__u32 oobfree[8][2];
+	__u32 eccpos[32];
+};
+
+struct nand_oobfree {
+	__u32 offset;
+	__u32 length;
+};
+
+#define MTD_MAX_OOBFREE_ENTRIES	8
+#define MTD_MAX_ECCPOS_ENTRIES	64
+/*
+ * OBSOLETE: ECC layout control structure. Exported to user-space via ioctl
+ * ECCGETLAYOUT for backwards compatbility and should not be mistaken as a
+ * complete set of ECC information. The ioctl truncates the larger internal
+ * structure to retain binary compatibility with the static declaration of the
+ * ioctl. Note that the "MTD_MAX_..._ENTRIES" macros represent the max size of
+ * the user struct, not the MAX size of the internal struct nand_ecclayout.
+ */
+struct nand_ecclayout_user {
+	__u32 eccbytes;
+	__u32 eccpos[MTD_MAX_ECCPOS_ENTRIES];
+	__u32 oobavail;
+	struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
+};
+
+/**
+ * struct mtd_ecc_stats - error correction stats
+ *
+ * @corrected:	number of corrected bits
+ * @failed:	number of uncorrectable errors
+ * @badblocks:	number of bad blocks in this partition
+ * @bbtblocks:	number of blocks reserved for bad block tables
+ */
+struct mtd_ecc_stats {
+	__u32 corrected;
+	__u32 failed;
+	__u32 badblocks;
+	__u32 bbtblocks;
+};
+
+/*
+ * MTD file modes - for read/write access to MTD
+ *
+ * @MTD_FILE_MODE_NORMAL:	OTP disabled, ECC enabled
+ * @MTD_FILE_MODE_OTP_FACTORY:	OTP enabled in factory mode
+ * @MTD_FILE_MODE_OTP_USER:	OTP enabled in user mode
+ * @MTD_FILE_MODE_RAW:		OTP disabled, ECC disabled
+ *
+ * These modes can be set via ioctl(MTDFILEMODE). The mode mode will be retained
+ * separately for each open file descriptor.
+ *
+ * Note: %MTD_FILE_MODE_RAW provides the same functionality as %MTD_OPS_RAW -
+ * raw access to the flash, without error correction or autoplacement schemes.
+ * Wherever possible, the MTD_OPS_* mode will override the MTD_FILE_MODE_* mode
+ * (e.g., when using ioctl(MEMWRITE)), but in some cases, the MTD_FILE_MODE is
+ * used out of necessity (e.g., `write()', ioctl(MEMWRITEOOB64)).
+ */
+enum mtd_file_modes {
+	MTD_FILE_MODE_NORMAL = MTD_OTP_OFF,
+	MTD_FILE_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
+	MTD_FILE_MODE_OTP_USER = MTD_OTP_USER,
+	MTD_FILE_MODE_RAW,
+};
+
+#endif /* __MTD_ABI_H__ */
diff --git a/mtd.c b/mtd.c
new file mode 100644
index 0000000..976024e
--- /dev/null
+++ b/mtd.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 2012 Mike Frysinger <vapier at gentoo.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "defs.h"
+
+#include <sys/ioctl.h>
+
+/* The mtd api changes quickly, so we have to keep a local copy */
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
+# include "mtd-abi.h"
+#else
+# include <mtd/mtd-abi.h>
+#endif
+
+static const struct xlat mtd_mode_options[] = {
+	{ MTD_OPS_PLACE_OOB,	"MTD_OPS_PLACE_OOB"	},
+	{ MTD_OPS_AUTO_OOB,	"MTD_OPS_AUTO_OOB"	},
+	{ MTD_OPS_RAW,		"MTD_OPS_RAW"		},
+	{ 0,			NULL			},
+};
+
+static const struct xlat mtd_type_options[] = {
+	{ MTD_ABSENT,		"MTD_ABSENT"		},
+	{ MTD_RAM,		"MTD_RAM"		},
+	{ MTD_ROM,		"MTD_ROM"		},
+	{ MTD_NORFLASH,		"MTD_NORFLASH"		},
+	{ MTD_NANDFLASH,	"MTD_NANDFLASH"		},
+	{ MTD_DATAFLASH,	"MTD_DATAFLASH"		},
+	{ MTD_UBIVOLUME,	"MTD_UBIVOLUME"		},
+	{ MTD_MLCNANDFLASH,	"MTD_MLCNANDFLASH"	},
+	{ 0,			NULL			},
+};
+
+static const struct xlat mtd_flags_options[] = {
+	{ MTD_WRITEABLE,	"MTD_WRITEABLE"		},
+	{ MTD_BIT_WRITEABLE,	"MTD_BIT_WRITEABLE"	},
+	{ MTD_NO_ERASE,		"MTD_NO_ERASE"		},
+	{ MTD_POWERUP_LOCK,	"MTD_POWERUP_LOCK"	},
+	{ 0,			NULL			},
+};
+
+static const struct xlat mtd_otp_options[] = {
+	{ MTD_OTP_OFF,		"MTD_OTP_OFF"		},
+	{ MTD_OTP_FACTORY,	"MTD_OTP_FACTORY"	},
+	{ MTD_OTP_USER,		"MTD_OTP_USER"		},
+	{ 0,			NULL			},
+};
+
+static const struct xlat mtd_nandecc_options[] = {
+	{ MTD_NANDECC_OFF,		"MTD_NANDECC_OFF"		},
+	{ MTD_NANDECC_PLACE,		"MTD_NANDECC_PLACE"		},
+	{ MTD_NANDECC_AUTOPLACE,	"MTD_NANDECC_AUTOPLACE"		},
+	{ MTD_NANDECC_PLACEONLY,	"MTD_NANDECC_PLACEONLY"		},
+	{ MTD_NANDECC_AUTOPL_USR,	"MTD_NANDECC_AUTOPL_USR"	},
+	{ 0,				NULL				},
+};
+
+int mtd_ioctl(struct tcb *tcp, long code, long arg)
+{
+	struct mtd_info_user minfo;
+	struct erase_info_user einfo;
+	struct erase_info_user64 einfo64;
+	struct mtd_oob_buf mbuf;
+	struct mtd_oob_buf64 mbuf64;
+	struct region_info_user rinfo;
+	struct otp_info oinfo;
+	struct mtd_ecc_stats estat;
+	struct mtd_write_req mreq;
+	struct nand_oobinfo ninfo;
+	struct nand_ecclayout_user nlay;
+	int i, j;
+
+	if (entering(tcp))
+		return 0;
+
+	switch (code) {
+
+	case MEMGETINFO:
+		if (!verbose(tcp) || umove(tcp, arg, &minfo) < 0)
+			return 0;
+
+		tprints(", {type=");
+		printxval(mtd_type_options, minfo.type, "MTD_???");
+		tprints(", flags=");
+		printflags(mtd_flags_options, minfo.flags, "MTD_???");
+		tprintf(", size=%#" PRIx32 ", erasesize=%#" PRIx32,
+			minfo.size, minfo.erasesize);
+		tprintf(", writesize=%#" PRIx32 ", oobsize=%#" PRIx32,
+			minfo.writesize, minfo.oobsize);
+		tprintf(", padding=%#" PRIx64 "}",
+			(uint64_t) minfo.padding);
+		return 1;
+
+	case MEMERASE:
+	case MEMLOCK:
+	case MEMUNLOCK:
+	case MEMISLOCKED:
+		if (!verbose(tcp) || umove(tcp, arg, &einfo) < 0)
+			return 0;
+
+		tprintf(", {start=%#" PRIx32 ", length=%#" PRIx32 "}",
+			einfo.start, einfo.length);
+		return 1;
+
+	case MEMERASE64:
+		if (!verbose(tcp) || umove(tcp, arg, &einfo64) < 0)
+			return 0;
+
+		tprintf(", {start=%#" PRIx64 ", length=%#" PRIx64 "}",
+			(uint64_t) einfo64.start, (uint64_t) einfo64.length);
+		return 1;
+
+	case MEMWRITEOOB:
+	case MEMREADOOB:
+		if (!verbose(tcp) || umove(tcp, arg, &mbuf) < 0)
+			return 0;
+
+		tprintf(", {start=%#" PRIx32 ", length=%#" PRIx32 ", ptr=...}",
+			mbuf.start, mbuf.length);
+		return 1;
+
+	case MEMWRITEOOB64:
+	case MEMREADOOB64:
+		if (!verbose(tcp) || umove(tcp, arg, &mbuf64) < 0)
+			return 0;
+
+		tprintf(", {start=%#" PRIx64 ", length=%#" PRIx64 ", ptr=...}",
+			(uint64_t) mbuf64.start, (uint64_t) mbuf64.length);
+		return 1;
+
+	case MEMGETREGIONINFO:
+		if (!verbose(tcp) || umove(tcp, arg, &rinfo) < 0)
+			return 0;
+
+		tprintf(", {offset=%#" PRIx32 ", erasesize=%#" PRIx32,
+			rinfo.offset, rinfo.erasesize);
+		tprintf(", numblocks=%#" PRIx32 ", regionindex=%#" PRIx32 "}",
+			rinfo.numblocks, rinfo.regionindex);
+		return 1;
+
+	case MEMGETOOBSEL:
+		if (!verbose(tcp) || umove(tcp, arg, &ninfo) < 0)
+			return 0;
+
+		tprints(", {useecc=");
+		printxval(mtd_nandecc_options, ninfo.useecc, "MTD_NANDECC_???");
+		tprintf(", eccbytes=%#" PRIx32, ninfo.eccbytes);
+
+		tprints(", oobfree={");
+		for (i = 0; i < ARRAY_SIZE(ninfo.oobfree); ++i) {
+			if (i)
+				tprints("}, ");
+			tprints("{");
+			for (j = 0; j < ARRAY_SIZE(ninfo.oobfree[0]); ++j) {
+				if (j)
+					tprints(", ");
+				tprintf("%#" PRIx32, ninfo.oobfree[i][j]);
+			}
+		}
+
+		tprints("}}, eccpos={");
+		for (i = 0; i < ARRAY_SIZE(ninfo.eccpos); ++i) {
+			if (i)
+				tprints(", ");
+			tprintf("%#" PRIx32, ninfo.eccpos[i]);
+		}
+
+		tprints("}");
+		return 1;
+
+	case OTPGETREGIONINFO:
+	case OTPLOCK:
+		if (!verbose(tcp) || umove(tcp, arg, &oinfo) < 0)
+			return 0;
+
+		tprintf(", {start=%#" PRIx32 ", length=%#" PRIx32 ", locked=%" PRIu32 "}",
+			oinfo.start, oinfo.length, oinfo.locked);
+		return 1;
+
+	case ECCGETLAYOUT:
+		if (!verbose(tcp) || umove(tcp, arg, &nlay) < 0)
+			return 0;
+
+		tprintf(", {eccbytes=%#" PRIx32 ", eccpos={", nlay.eccbytes);
+		for (i = 0; i < ARRAY_SIZE(nlay.eccpos); ++i) {
+			if (i)
+				tprints(", ");
+			tprintf("%#" PRIx32, nlay.eccpos[i]);
+		}
+		tprintf("}, oobavail=%#" PRIx32 ", oobfree={", nlay.oobavail);
+		for (i = 0; i < ARRAY_SIZE(nlay.oobfree); ++i) {
+			if (i)
+				tprints(", ");
+			tprintf("{offset=%#" PRIx32 ", length=%#" PRIx32 "}",
+				nlay.oobfree[i].offset, nlay.oobfree[i].length);
+		}
+		tprints("}");
+		return 1;
+
+	case ECCGETSTATS:
+		if (!verbose(tcp) || umove(tcp, arg, &estat) < 0)
+			return 0;
+
+		tprintf(", {corrected=%#" PRIx32 ", failed=%#" PRIx32,
+			estat.corrected, estat.failed);
+		tprintf(", badblocks=%#" PRIx32 ", bbtblocks=%#" PRIx32 "}",
+			estat.badblocks, estat.bbtblocks);
+		return 1;
+
+	case MEMWRITE:
+		if (!verbose(tcp) || umove(tcp, arg, &mreq) < 0)
+			return 0;
+
+		tprintf(", {start=%#" PRIx64 ", len=%#" PRIx64,
+			(uint64_t) mreq.start, (uint64_t) mreq.len);
+		tprintf(", ooblen=%#" PRIx64 ", usr_data=%#" PRIx64,
+			(uint64_t) mreq.ooblen, (uint64_t) mreq.usr_data);
+		tprintf(", usr_oob=%#" PRIx64 ", mode=",
+			(uint64_t) mreq.usr_oob);
+		printxval(mtd_mode_options, mreq.mode, "MTD_OPS_???");
+		tprints(", padding=...}");
+		return 1;
+
+	case OTPSELECT:
+		if (!verbose(tcp) || umove(tcp, arg, &i) < 0)
+			return 0;
+
+		tprints(", [");
+		printxval(mtd_otp_options, i, "MTD_OTP_???");
+		tprints("]");
+		return 1;
+
+	case MEMGETBADBLOCK:
+	case MEMSETBADBLOCK:
+		if (!verbose(tcp))
+			return 0;
+
+		tprints(", ");
+		print_loff_t(tcp, arg);
+		return 1;
+
+	case OTPGETREGIONCOUNT:
+		if (!verbose(tcp) || umove(tcp, arg, &i) < 0)
+			return 0;
+
+		tprintf(", [%i]", i);
+		return 1;
+
+	case MTDFILEMODE:
+		/* XXX: process return value as enum mtd_file_modes */
+
+	case MEMGETREGIONCOUNT:
+		/* These ones take simple args, so let default printer handle it */
+
+	default:
+		return 0;
+	}
+}
-- 
1.7.8.5





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