git commit -m "first commit for v2"

2025-12-29 16:21:22 +07:00
commit aa3d832d5c
1807 changed files with 307078 additions and 0 deletions
--- a/Devices/Libraries/Systems/can-utils/mcp251xfd/mcp251xfd-main.c
+++ b/Devices/Libraries/Systems/can-utils/mcp251xfd/mcp251xfd-main.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Microchip MCP251xFD Family CAN controller debug tool
+//
+// Copyright (c) 2020, 2021 Pengutronix,
+//               Marc Kleine-Budde <kernel@pengutronix.de>
+//
+
+#include <errno.h>
+#include <getopt.h>
+#include <libgen.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <linux/kernel.h>
+
+#include "mcp251xfd-dump-userspace.h"
+
+static void print_usage(char *prg)
+{
+	fprintf(stderr,
+		"%s - decode chip and driver state of mcp251xfd.\n"
+		"\n"
+		"Usage: %s [options] <file>\n"
+		"\n"
+		"        <file>      path to dev coredump file\n"
+		"                        ('/var/log/devcoredump-19700101-234200.dump')\n"
+		"                    path to regmap register file\n"
+                "                        ('/sys/kernel/debug/regmap/spi1.0-crc/registers')\n"
+		"                    shortcut to regmap register file\n"
+		"                        ('spi0.0')\n"
+		"\n"
+		"Options:\n"
+		"        -h, --help  this help\n"
+		"\n",
+		prg, prg);
+}
+
+int regmap_bulk_read(struct regmap *map, unsigned int reg,
+		     void *val, size_t val_count)
+{
+	memcpy(val, map->mem->buf + reg,
+	       val_count * sizeof(uint32_t));
+
+	return 0;
+}
+
+void mcp251xfd_dump_ring_init(struct mcp251xfd_ring *ring)
+{
+	memset(ring, 0x0, sizeof(*ring));
+
+	ring->type = MCP251XFD_DUMP_UNKNOWN;
+	ring->head = MCP251XFD_DUMP_UNKNOWN;
+	ring->tail = MCP251XFD_DUMP_UNKNOWN;
+	ring->nr = (uint8_t)MCP251XFD_DUMP_UNKNOWN;
+	ring->fifo_nr = (uint8_t)MCP251XFD_DUMP_UNKNOWN;
+}
+
+int main(int argc, char *argv[])
+{
+	struct mcp251xfd_mem mem = { };
+	struct regmap map = {
+		.mem = &mem,
+	};
+	struct mcp251xfd_priv priv = {
+		.map = &map,
+	};
+	const char *file_path;
+	unsigned int i;
+	int opt, err;
+
+	struct option long_options[] = {
+		{ "help", no_argument, 0, 'h' },
+		{ 0, 0, 0, 0 },
+	};
+
+	while ((opt = getopt_long(argc, argv, "ei:pq::rvh", long_options, NULL)) != -1) {
+		switch (opt) {
+		case 'h':
+			print_usage(basename(argv[0]));
+			exit(EXIT_SUCCESS);
+			break;
+
+		default:
+			print_usage(basename(argv[0]));
+			exit(EXIT_FAILURE);
+			break;
+		}
+	}
+
+	file_path = argv[optind];
+
+	if (!file_path) {
+		print_usage(basename(argv[0]));
+		exit(EXIT_FAILURE);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(priv.ring); i++)
+		mcp251xfd_dump_ring_init(&priv.ring[i]);
+
+	err = mcp251xfd_dev_coredump_read(&priv, &mem, file_path);
+	if (err)
+		err = mcp251xfd_regmap_read(&priv, &mem, file_path);
+	if (err) {
+		fprintf(stderr, "Unable to read file: '%s'\n", file_path);
+		exit(EXIT_FAILURE);
+	}
+
+	mcp251xfd_dump(&priv);
+
+	exit(EXIT_SUCCESS);
+}