new command 'driveinfo' to dump block device information from ioctl, to help debugging drivers

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5662 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/bin/Jamfile

@@ -40,6 +40,7 @@ StdBinCommands
 
 StdBinCommands
 	chop.c
+	driveinfo.c
 	echo.c
 	eject.c
 	hd.c

src/apps/bin/driveinfo.c

@@ -0,0 +1,92 @@
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <Drivers.h>
+
+void dump_dev_size(int dev)
+{
+	size_t sz;
+	if (ioctl(dev, B_GET_DEVICE_SIZE, &sz, sizeof(sz)) < 0) {
+		perror("ioctl(B_GET_DEVICE_SIZE)");
+		return;
+	}
+	printf("size: %ld bytes\n", sz);
+	puts("");
+}
+
+void dump_bios_id(int dev)
+{
+	uint8 id;
+	if (ioctl(dev, B_GET_BIOS_DRIVE_ID, &id, sizeof(id)) < 0) {
+		perror("ioctl(B_GET_BIOS_DRIVE_ID)");
+		return;
+	}
+	printf("bios id: %d, 0x%x\n", id, id);
+	puts("");
+}
+
+void dump_media_status(int dev)
+{
+	uint32 st;
+	if (ioctl(dev, B_GET_MEDIA_STATUS, &st, sizeof(st)) < 0) {
+		perror("ioctl(B_GET_MEDIA_STATUS)");
+		return;
+	}
+	printf("media status: %s\n", strerror(st));
+	puts("");
+}
+
+const char *device_type(uint32 type)
+{
+	if (type == B_DISK) return "disk";
+	if (type == B_TAPE) return "tape";
+	if (type == B_PRINTER) return "printer";
+	if (type == B_CPU) return "cpu";
+	if (type == B_WORM) return "worm";
+	if (type == B_CD) return "cd";
+	if (type == B_SCANNER) return "scanner";
+	if (type == B_OPTICAL) return "optical";
+	if (type == B_JUKEBOX) return "jukebox";
+	if (type == B_NETWORK) return "network";
+	return "<unknown>";
+}
+
+void dump_geom(int dev, bool bios)
+{
+	device_geometry geom;
+	
+	if (ioctl(dev, bios?B_GET_BIOS_GEOMETRY:B_GET_GEOMETRY, &geom, sizeof(geom)) < 0) {
+		perror("ioctl(B_GET_(BIOS_)GEOMETRY)");
+		return;
+	}
+	printf("%sgeometry:\n", bios?"bios ":"");
+	printf("bytes_per_sector:\t%ld\n", geom.bytes_per_sector);
+	printf("sectors_per_track:\t%ld\n", geom.sectors_per_track);
+	printf("cylinder_count:\t%ld\n", geom.cylinder_count);
+	printf("head_count:\t%ld\n", geom.head_count);
+	printf("device_type:\t%d, %s\n", geom.device_type, device_type(geom.device_type));
+	printf("%sremovable.\n", geom.removable?"":"not ");
+	printf("%sread_only.\n", geom.read_only?"":"not ");
+	printf("%swrite_once.\n", geom.write_once?"":"not ");
+	puts("");
+}
+
+int main(int argc, char **argv)
+{
+	int dev;
+	if (argc < 2) {
+		printf("%s device\n", argv[0]);
+		return 1;
+	}
+	dev = open(argv[1], O_RDONLY);
+	if (dev < 0) {
+		perror("open");
+		return 1;
+	}
+	dump_dev_size(dev);
+	dump_bios_id(dev);
+	dump_media_status(dev);
+	dump_geom(dev, false);
+	dump_geom(dev, true);
+	return 0;
+}