samsung-ipc: move TOC handling in its own directory

This could enable other devices to use the TOC handling functions.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

1 files changed, 44 insertions, 0 deletions

diff --git a/samsung-ipc/partitions/toc/toc.c b/samsung-ipc/partitions/toc/toc.c
new file mode 100644
index 0000000..ec62ea9
--- /dev/null
+++ b/samsung-ipc/partitions/toc/toc.c
@@ -0,0 +1,44 @@
+/*
+ * This file is part of libsamsung-ipc.
+ *
+ * Copyright (C) 2020 Tony Garnock-Jones <tonyg@leastfixedpoint.com>
+ *
+ * libsamsung-ipc 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.
+ *
+ * libsamsung-ipc 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 libsamsung-ipc.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stddef.h>
+#include <string.h>
+
+#include "toc.h"
+
+struct firmware_toc_entry const *find_toc_entry(
+	char const *name,
+	struct firmware_toc_entry const *toc)
+{
+	unsigned int index;
+
+	/* We don't know all the details of the TOC format yet; for now, we
+	 * assume two things:
+	 * 1. reading 512 bytes of TOC is enough, and
+	 * 2. the first entry with an empty name field ends the list.
+	 */
+	for (index = 0; index < N_TOC_ENTRIES; index++) {
+		if (toc[index].name[0] == '\0')
+			break;
+		if (strncmp(toc[index].name, name,
+			    sizeof(toc[index].name)) == 0)
+			return &toc[index];
+	}
+	return NULL;
+}