[lib] ptable: add basic partition table management.
diff --git a/include/lib/ptable.h b/include/lib/ptable.h
new file mode 100644
index 0000000..0883b8c
--- /dev/null
+++ b/include/lib/ptable.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2008, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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.
+ */
+
+
+#ifndef __LIB_PTABLE_H
+#define __LIB_PTABLE_H
+
+/* flash partitions are defined in terms of blocks
+ * (flash erase units)
+ */
+#define MAX_PTENTRY_NAME 16
+#define MAX_PTABLE_PARTS 16
+
+struct ptentry
+{
+ char name[MAX_PTENTRY_NAME];
+ unsigned start;
+ unsigned length;
+ unsigned flags;
+};
+
+struct ptable
+{
+ struct ptentry parts[MAX_PTABLE_PARTS];
+ int count;
+};
+
+/* tools to populate and query the partition table */
+void ptable_init(struct ptable *ptable);
+void ptable_add(struct ptable *ptable, char *name, unsigned start,
+ unsigned length, unsigned flags);
+struct ptentry *ptable_find(struct ptable *ptable, const char *name);
+struct ptentry *ptable_get(struct ptable *ptable, int n);
+int ptable_size(struct ptable *ptable);
+void ptable_dump(struct ptable *ptable);
+
+#endif /* __LIB_PTABLE_H */
diff --git a/lib/ptable/ptable.c b/lib/ptable/ptable.c
new file mode 100644
index 0000000..9648ef5
--- /dev/null
+++ b/lib/ptable/ptable.c
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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 <list.h>
+#include <stdlib.h>
+#include <string.h>
+#include <lib/ptable.h>
+
+void ptable_init(struct ptable *ptable)
+{
+ ASSERT(ptable);
+
+ memset(ptable, 0, sizeof(struct ptable));
+}
+
+void ptable_add(struct ptable *ptable, char *name, unsigned start,
+ unsigned length, unsigned flags)
+{
+ struct ptentry *ptn;
+
+ ASSERT(ptable && ptable->count < MAX_PTABLE_PARTS);
+
+ ptn = &ptable->parts[ptable->count++];
+ strncpy(ptn->name, name, MAX_PTENTRY_NAME);
+ ptn->start = start;
+ ptn->length = length;
+ ptn->flags = flags;
+}
+
+void ptable_dump(struct ptable *ptable)
+{
+ struct ptentry *ptn;
+ int i;
+
+ for (i = 0; i < ptable->count; ++i) {
+ ptn = &ptable->parts[i];
+ dprintf(INFO, "ptn %d name='%s' start=%08x len=%08x "
+ "flags=%08x\n", i, ptn->name, ptn->start, ptn->length,
+ ptn->flags);
+ }
+}
+
+struct ptentry *ptable_find(struct ptable *ptable, const char *name)
+{
+ struct ptentry *ptn;
+ int i;
+
+ for (i = 0; i < ptable->count; ++i) {
+ ptn = &ptable->parts[i];
+ if (!strcmp(ptn->name, name))
+ return ptn;
+ }
+
+ return NULL;
+}
+
+struct ptentry *ptable_get(struct ptable *ptable, int n)
+{
+ if (n >= ptable->count)
+ return NULL;
+ return &ptable->parts[n];
+}
+
+int ptable_size(struct ptable *ptable)
+{
+ return ptable->count;
+}
diff --git a/lib/ptable/rules.mk b/lib/ptable/rules.mk
new file mode 100644
index 0000000..d3ff349
--- /dev/null
+++ b/lib/ptable/rules.mk
@@ -0,0 +1,4 @@
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+OBJS += \
+ $(LOCAL_DIR)/ptable.o