From 304fbef156b00d8d7005c8b156e64a6632d45008 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 23 Jun 2015 15:38:35 -0600 Subject: 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 --- drivers/core/Makefile | 1 + drivers/core/dump.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 97 insertions(+) create mode 100644 drivers/core/dump.c (limited to 'drivers') 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 +#include +#include +#include + +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"); + } +} -- cgit v1.2.1