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authorSimon Glass <sjg@chromium.org>2015-06-23 15:38:35 -0600
committerSimon Glass <sjg@chromium.org>2015-07-21 17:39:22 -0600
commit304fbef156b00d8d7005c8b156e64a6632d45008 (patch)
treeb5de5bdd89b0ec45b3b4ed7cd175423fb0014b79 /drivers/core
parentda229e4e57b7d028cf01d52ac70832a90453e289 (diff)
dm: Move the tree/uclass dump code into its own file
In SPL it is sometimes useful to be able to obtain a dump of the current driver model state. Since commands are not available, provide a way to directly call the functions to output this information. Adjust the existing commands to use these functions. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/core')
-rw-r--r--drivers/core/Makefile1
-rw-r--r--drivers/core/dump.c96
2 files changed, 97 insertions, 0 deletions
diff --git a/drivers/core/Makefile b/drivers/core/Makefile
index a3fec38503..ed21fedbc0 100644
--- a/drivers/core/Makefile
+++ b/drivers/core/Makefile
@@ -9,3 +9,4 @@ ifndef CONFIG_SPL_BUILD
obj-$(CONFIG_OF_CONTROL) += simple-bus.o
endif
obj-$(CONFIG_DM_DEVICE_REMOVE) += device-remove.o
+obj-$(CONFIG_DM) += dump.o
diff --git a/drivers/core/dump.c b/drivers/core/dump.c
new file mode 100644
index 0000000000..fd4596ee68
--- /dev/null
+++ b/drivers/core/dump.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2015 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <mapmem.h>
+#include <dm/root.h>
+
+static void show_devices(struct udevice *dev, int depth, int last_flag)
+{
+ int i, is_last;
+ struct udevice *child;
+ char class_name[12];
+
+ /* print the first 11 characters to not break the tree-format. */
+ strlcpy(class_name, dev->uclass->uc_drv->name, sizeof(class_name));
+ printf(" %-11s [ %c ] ", class_name,
+ dev->flags & DM_FLAG_ACTIVATED ? '+' : ' ');
+
+ 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 Probed 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)
+{
+ printf("- %c %s @ %08lx",
+ 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;
+
+ 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;
+ list_for_each_entry(dev, &uc->dev_head, uclass_node) {
+ dm_display_line(dev);
+ }
+ puts("\n");
+ }
+}