qemu-helper-sdk: Add raw2flash / flash2raw converter

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@3737 311d38ba-8fff-0310-9ca6-ca027cbcb966

2 files changed, 391 insertions, 5 deletions

diff --git a/meta/packages/qemu/qemu-helper-sdk_1.0.bb b/meta/packages/qemu/qemu-helper-sdk_1.0.bb
index ce66ff3150..4e3a15b762 100644
--- a/meta/packages/qemu/qemu-helper-sdk_1.0.bb
+++ b/meta/packages/qemu/qemu-helper-sdk_1.0.bb
@@ -3,18 +3,34 @@ LICENSE = "GPL"
 RDEPENDS = "qemu-sdk"
 PR = "r5"
 
+FILESPATH = "${FILE_DIRNAME}/qemu-helper"
+
 SRC_URI = "file://${OEROOT}/scripts/poky-qemu \
            file://${OEROOT}/scripts/poky-qemu-internal \
            file://${OEROOT}/scripts/poky-addptable2image \
-           file://${OEROOT}/scripts/poky-qemu-ifup"
+           file://${OEROOT}/scripts/poky-qemu-ifup \
+	   file://raw2flash.c"
 		      
 S = "${WORKDIR}"
 		      
-PACKAGE_ARCH = "all"
-
 inherit sdk
-		      
+
+do_compile() {
+	${CC} raw2flash.c -o raw2flash.spitz
+	ln -fs raw2flash.spitz raw2flash.akita
+	ln -fs raw2flash.spitz raw2flash.borzoi
+	ln -fs raw2flash.spitz raw2flash.terrier
+	${CC} raw2flash.c -o flash2raw.spitz -Dflash2raw
+	ln -fs flash2raw.spitz flash2raw.akita
+	ln -fs flash2raw.spitz flash2raw.borzoi
+	ln -fs flash2raw.spitz flash2raw.terrier
+}
+
 do_install() {
 	install -d ${D}${bindir}
 	install -m 0755 poky-* ${D}${bindir}/
-}  
\ No newline at end of file
+	install -m 0755 *.akita ${D}${bindir}/
+	install -m 0755 *.spitz ${D}${bindir}/
+	install -m 0755 *.borzoi ${D}${bindir}/
+	install -m 0755 *.terrier ${D}${bindir}/
+}
diff --git a/meta/packages/qemu/qemu-helper/raw2flash.c b/meta/packages/qemu/qemu-helper/raw2flash.c
new file mode 100644
index 0000000000..19faf629b9
--- /dev/null
+++ b/meta/packages/qemu/qemu-helper/raw2flash.c
@@ -0,0 +1,370 @@
+/*
+ * Copyright (c) 2006 OpenedHand Ltd.
+ *
+ * This file is licensed under GNU GPL v2.
+ */
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <stdlib.h>
+
+#define TFR(_)		_
+#define VERBOSE
+#define PBAR_LEN	40
+
+#define PARTITION_START	0x00700000
+
+static const int ecc_pos8[] = {
+	0x0, 0x1, 0x2,
+};
+
+static const int ecc_pos16[] = {
+	0x0, 0x1, 0x2, 0x3, 0x6, 0x7,
+};
+
+static const int ecc_pos64[] = {
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+};
+
+static const int ecc_akita[] = {
+	0x05, 0x01, 0x02, 0x03, 0x06, 0x07, 0x15, 0x11,
+	0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23,
+	0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37,
+};
+
+struct jffs_marker_s {
+	int pos;
+	uint8_t value;
+};
+
+static const struct jffs_marker_s free_pos8[] = {
+	{ 0x03, 0xff }, { 0x04, 0xff }, { 0x06, 0x85 }, { 0x07, 0x19 },
+	{ -1 },
+};
+
+static const struct jffs_marker_s free_pos16[] = {
+	{ 0x08, 0x85 }, { 0x09, 0x19 }, { 0x0a, 0x03 }, { 0x0b, 0x20 },
+	{ 0x0c, 0x08 }, { 0x0d, 0x00 }, { 0x0e, 0x00 }, { 0x0f, 0x00 },
+	{ -1 },
+};
+
+static const struct jffs_marker_s free_pos64[] = {
+	{ 0x02, 0xff }, { 0x03, 0xff }, { 0x04, 0xff }, { 0x05, 0xff },
+	{ 0x06, 0xff }, { 0x07, 0xff }, { 0x08, 0xff }, { 0x09, 0xff },
+	{ 0x0a, 0xff }, { 0x0b, 0xff }, { 0x0c, 0xff }, { 0x0d, 0xff },
+	{ 0x0e, 0xff }, { 0x0f, 0xff }, { 0x10, 0x85 }, { 0x11, 0x19 },
+	{ 0x12, 0x03 }, { 0x13, 0x20 }, { 0x14, 0x08 }, { 0x15, 0x00 },
+	{ 0x16, 0x00 }, { 0x17, 0x00 }, { 0x18, 0xff }, { 0x19, 0xff },
+	{ 0x1a, 0xff }, { 0x1b, 0xff }, { 0x1c, 0xff }, { 0x1d, 0xff },
+	{ 0x1e, 0xff }, { 0x1f, 0xff }, { 0x20, 0xff }, { 0x21, 0xff },
+	{ 0x22, 0xff }, { 0x23, 0xff }, { 0x24, 0xff }, { 0x25, 0xff },
+	{ 0x26, 0xff }, { 0x27, 0xff },
+	{ -1 },
+};
+
+static const struct jffs_marker_s free_akita[] = {
+	{ 0x08, 0x85 }, { 0x09, 0x19 }, { 0x0a, 0x03 }, { 0x0b, 0x20 },
+	{ 0x0c, 0x08 }, { 0x0d, 0x00 }, { 0x0e, 0x00 }, { 0x0f, 0x00 },
+	{ 0x10, 0xff },
+	{ -1 },
+};
+
+#define LEN(array)	(sizeof(array) / sizeof(*array))
+
+static const struct ecc_style_s {
+	int page_size;
+	int oob_size;
+	int eccbytes;
+	int eccsize;
+	const int *eccpos;
+	int romsize;
+	const struct jffs_marker_s *freepos;
+} spitz = {
+	0x200, 0x10, 0x100, LEN(ecc_pos16), ecc_pos16, 0x01000000, free_pos16
+}, akita = {
+	0x800, 0x40, 0x100, LEN(ecc_akita), ecc_akita, 0x08000000, free_akita
+}, borzoi = {
+	0x800, 0x40, 0x100, LEN(ecc_akita), ecc_akita, 0x08000000, free_akita
+}, terrier = {
+	0x800, 0x40, 0x100, LEN(ecc_akita), ecc_akita, 0x08000000, free_akita
+};
+
+struct ecc_state_s {
+	int count;
+	uint8_t cp;
+	uint8_t lp[2];
+	const struct ecc_style_s *style;
+};
+
+#ifndef flash2raw
+/*
+ * Pre-calculated 256-way 1 byte column parity.  Table borrowed from Linux.
+ */
+static const uint8_t ecc_precalc_table[] = {
+	0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a,
+	0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00,
+	0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f,
+	0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65,
+	0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c,
+	0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66,
+	0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59,
+	0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03,
+	0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33,
+	0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69,
+	0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56,
+	0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c,
+	0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55,
+	0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f,
+	0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30,
+	0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a,
+	0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30,
+	0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a,
+	0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55,
+	0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f,
+	0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56,
+	0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c,
+	0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33,
+	0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69,
+	0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59,
+	0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03,
+	0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c,
+	0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66,
+	0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f,
+	0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65,
+	0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a,
+	0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00,
+};
+
+/* Update ECC parity count */
+static inline uint8_t ecc_digest(struct ecc_state_s *s, uint8_t sample) {
+	uint8_t idx = ecc_precalc_table[sample];
+
+	s->cp ^= idx & 0x3f;
+	if (idx & 0x40) {
+		s->lp[0] ^= ~(s->count & 0xff);
+		s->lp[1] ^= s->count & 0xff;
+	}
+	s->count ++;
+
+	return sample;
+}
+
+static void buffer_digest(struct ecc_state_s *ecc,
+		const uint8_t *buf, uint8_t *out) {
+	int i, lp_a[2];
+
+	ecc->lp[0] = 0x00;
+	ecc->lp[1] = 0x00;
+	ecc->cp = 0x00;
+	ecc->count = 0;
+	for (i = 0; i < ecc->style->eccbytes; i ++)
+		ecc_digest(ecc, buf[i]);
+
+# define BSHR(byte, from, to)	((ecc->lp[byte] >> (from - to)) & (1 << to))
+	lp_a[0] =
+		BSHR(0, 4, 0) | BSHR(0, 5, 2) |
+		BSHR(0, 6, 4) | BSHR(0, 7, 6) |
+		BSHR(1, 4, 1) | BSHR(1, 5, 3) |
+		BSHR(1, 6, 5) | BSHR(1, 7, 7);
+
+# define BSHL(byte, from, to)	((ecc->lp[byte] << (to - from)) & (1 << to))
+	lp_a[1] =
+		BSHL(0, 0, 0) | BSHL(0, 1, 2) |
+		BSHL(0, 2, 4) | BSHL(0, 3, 6) |
+		BSHL(1, 0, 1) | BSHL(1, 1, 3) |
+		BSHL(1, 2, 5) | BSHL(1, 3, 7);
+
+	out[0] = ~lp_a[1];
+	out[1] = ~lp_a[0];
+	out[2] = (~ecc->cp << 2) | 0x03;
+}
+
+static void jffs2_format(const struct ecc_state_s *ecc, uint8_t oob[]) {
+	const struct jffs_marker_s *byte;
+	for (byte = ecc->style->freepos; byte->pos >= 0; byte ++)
+		oob[byte->pos] = byte->value;
+}
+
+static void buffer_fill(const struct ecc_state_s *ecc, uint8_t buffer[],
+		int *len, int *partition, int count, uint8_t jffs_buffer[]) {
+	int ret;
+
+	switch (*partition) {
+	case 0:
+		if (count < PARTITION_START) {
+			memcpy(buffer, jffs_buffer + count,
+					ecc->style->eccbytes);
+			*len = ecc->style->eccbytes;
+			break;
+		}
+		*partition = 1;
+	case 1:
+		if (count - PARTITION_START < PARTITION_START) {
+			memcpy(buffer, jffs_buffer + count - PARTITION_START,
+					ecc->style->eccbytes);
+			*len = ecc->style->eccbytes;
+			break;
+		}
+
+		while (*len < ecc->style->eccbytes) {
+			ret = TFR(read(0, buffer + *len, 0x800 - *len));
+			if (ret <= 0)
+				break;
+			*len += ret;
+		}
+
+		if (*len == 0)
+			*partition = 2;
+		else if (*len < ecc->style->eccbytes) {
+			fprintf(stderr, "\nWarning: %i stray bytes\n", *len);
+			memset(buffer + *len, 0xff,
+					ecc->style->eccbytes - *len);
+			*len = ecc->style->eccbytes;
+			break;
+		} else
+			break;
+	case 2:
+		memset(buffer, 0xff, ecc->style->eccbytes);
+		*len = ecc->style->eccbytes;
+		break;
+	}
+}
+
+int main(int argc, char *argv[], char *envp[]) {
+	struct ecc_state_s ecc;
+	uint8_t buffer[0x1000], ecc_payload[0x40], regs[3], *jffs;
+	int ret, len, eccbyte, count, partition;
+
+	/* Check if we're called by "raw2flash.spitz" or similar */
+	len = strlen(argv[0]);
+	if (!strcasecmp(argv[0] + len - 5, "akita"))
+		ecc.style = &akita;
+	else if (!strcasecmp(argv[0] + len - 6, "borzoi"))
+		ecc.style = &borzoi;
+	else if (!strcasecmp(argv[0] + len - 7, "terrier"))
+		ecc.style = &terrier;
+	else
+		ecc.style = &spitz;
+
+# ifdef VERBOSE
+	fprintf(stderr, "[");
+# endif
+
+	/* Skip first 10 bytes */
+	TFR(read(0, buffer, 0x10));
+
+	len = 0;
+	jffs = (uint8_t *) malloc(PARTITION_START);
+	while (len < PARTITION_START) {
+		ret = TFR(read(0, jffs + len, PARTITION_START - len));
+		if (ret <= 0)
+			break;
+		len += ret;
+	}
+
+	/* Convert data from stdin */
+	partition = len = eccbyte = count = 0;
+	memset(ecc_payload, 0xff, ecc.style->oob_size);
+	jffs2_format(&ecc, ecc_payload);
+	while (count < ecc.style->romsize) {
+		buffer_fill(&ecc, buffer, &len, &partition, count, jffs);
+		buffer_digest(&ecc, buffer, regs);
+
+		ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[0];
+		ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[1];
+		ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[2];
+
+		TFR(write(1, buffer, ecc.style->eccbytes));
+		count += ecc.style->eccbytes;
+		len -= ecc.style->eccbytes;
+		memmove(buffer, buffer + ecc.style->eccbytes, len);
+
+		if (eccbyte >= ecc.style->eccsize) {
+			TFR(write(1, ecc_payload, ecc.style->oob_size));
+			eccbyte = 0;
+			memset(ecc_payload, 0xff, ecc.style->oob_size);
+			if (partition < 2)
+				jffs2_format(&ecc, ecc_payload);
+		}
+
+# ifdef VERBOSE
+		if (count * PBAR_LEN / ecc.style->romsize >
+				(count - ecc.style->eccbytes) *
+				PBAR_LEN / ecc.style->romsize)
+			fprintf(stderr, "#");
+# endif
+	}
+
+# ifdef VERBOSE
+	fprintf(stderr, "]\n");
+# endif
+	free(jffs);
+	return 0;
+}
+#else
+int main(int argc, char *argv[], char *envp[]) {
+	struct ecc_state_s ecc;
+	uint8_t buffer[0x1000];
+	int ret, len, count;
+
+	/* Check if we're called by "flash2raw.spitz" or similar */
+	len = strlen(argv[0]);
+	if (!strcasecmp(argv[0] + len - 5, "akita"))
+		ecc.style = &akita;
+	else if (!strcasecmp(argv[0] + len - 6, "borzoi"))
+		ecc.style = &borzoi;
+	else if (!strcasecmp(argv[0] + len - 7, "terrier"))
+		ecc.style = &terrier;
+	else
+		ecc.style = &spitz;
+
+# ifdef VERBOSE
+	fprintf(stderr, "[");
+# endif
+
+	/* Convert data from stdin */
+	count = 0;
+	while (count < ecc.style->romsize) {
+		len = 0;
+		while (len < ecc.style->page_size) {
+			ret = TFR(read(0, buffer + len,
+						ecc.style->page_size - len));
+			if (ret <= 0)
+				break;
+			len += ret;
+		}
+		if (len == 0)
+			break;
+		if (len < ecc.style->page_size) {
+			fprintf(stderr, "\nWarning: %i stray bytes\n", len);
+		}
+
+		TFR(write(1, buffer, ecc.style->page_size));
+
+		count += len;
+		len = 0;
+		while (len < ecc.style->oob_size) {
+			ret = TFR(read(0, buffer, ecc.style->oob_size - len));
+			if (ret <= 0)
+				break;
+			len += ret;
+		}
+
+# ifdef VERBOSE
+		if (count * PBAR_LEN / ecc.style->romsize >
+				(count - ecc.style->page_size) *
+				PBAR_LEN / ecc.style->romsize)
+			fprintf(stderr, "#");
+# endif
+	}
+
+# ifdef VERBOSE
+	fprintf(stderr, "]\n");
+# endif
+	return 0;
+}
+#endif