GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2015 Google, Inc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <mapmem.h>
+#include <dm/root.h>
+#include <dm/util.h>
+#include <dm/uclass-internal.h>
+
+static void show_devices(struct udevice *dev, int depth, int last_flag)
+{
+	int i, is_last;
+	struct udevice *child;
+
+	/* print the first 20 characters to not break the tree-format. */
+	printf(" %-10.10s  %3d  [ %c ]   %-20.20s  ", dev->uclass->uc_drv->name,
+	       dev_get_uclass_index(dev, NULL),
+	       dev->flags & DM_FLAG_ACTIVATED ? '+' : ' ', dev->driver->name);
+
+	for (i = depth; i >= 0; i--) {
+		is_last = (last_flag >> i) & 1;
+		if (i) {
+			if (is_last)
+				printf("    ");
+			else
+				printf("|   ");
+		} else {
+			if (is_last)
+				printf("`-- ");
+			else
+				printf("|-- ");
+		}
+	}
+
+	printf("%s\n", dev->name);
+
+	list_for_each_entry(child, &dev->child_head, sibling_node) {
+		is_last = list_is_last(&child->sibling_node, &dev->child_head);
+		show_devices(child, depth + 1, (last_flag << 1) | is_last);
+	}
+}
+
+void dm_dump_all(void)
+{
+	struct udevice *root;
+
+	root = dm_root();
+	if (root) {
+		printf(" Class     Index  Probed  Driver                Name\n");
+		printf("-----------------------------------------------------------\n");
+		show_devices(root, -1, 0);
+	}
+}
+
+/**
+ * dm_display_line() - Display information about a single device
+ *
+ * Displays a single line of information with an option prefix
+ *
+ * @dev:	Device to display
+ */
+static void dm_display_line(struct udevice *dev, int index)
+{
+	printf("%-3i %c %s @ %08lx", index,
+	       dev->flags & DM_FLAG_ACTIVATED ? '*' : ' ',
+	       dev->name, (ulong)map_to_sysmem(dev));
+	if (dev->seq != -1 || dev->req_seq != -1)
+		printf(", seq %d, (req %d)", dev->seq, dev->req_seq);
+	puts("\n");
+}
+
+void dm_dump_uclass(void)
+{
+	struct uclass *uc;
+	int ret;
+	int id;
+
+	for (id = 0; id < UCLASS_COUNT; id++) {
+		struct udevice *dev;
+		int i = 0;
+
+		ret = uclass_get(id, &uc);
+		if (ret)
+			continue;
+
+		printf("uclass %d: %s\n", id, uc->uc_drv->name);
+		if (list_empty(&uc->dev_head))
+			continue;
+		uclass_foreach_dev(dev, uc) {
+			dm_display_line(dev, i);
+			i++;
+		}
+		puts("\n");
+	}
+}