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dm_test: improve the appearance shown by "dm tree" command

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The command "dm tree" lists devices in a tree-like format.
This commit makes it look more like what the Unix command "tree"
shows.

=> dm tree
 Class       Probed   Name
----------------------------------------
 root        [ + ]    root_driver
 demo        [   ]    |-- demo_shape_drv
 demo        [   ]    |-- demo_simple_drv
 demo        [   ]    |-- demo_shape_drv
 demo        [   ]    |-- demo_simple_drv
 demo        [   ]    |-- demo_shape_drv
 test        [   ]    |-- test_drv
 test        [   ]    |-- test_drv
 test        [   ]    |-- test_drv
 gpio        [   ]    |-- gpio_sandbox
 serial      [   ]    |-- serial_sandbox
 serial      [ + ]    |-- serial
 demo        [   ]    |-- triangle
 demo        [   ]    |-- square
 demo        [   ]    |-- hexagon
 gpio        [   ]    |-- gpios
 spi         [   ]    |-- spi@0
 spi_emul    [   ]    |   `-- flash@0
 cros_ec     [ + ]    `-- cros-ec@0

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
This commit is contained in:
Masahiro Yamada 2014-11-29 17:01:56 +09:00 committed by Simon Glass
parent 80d9ef8d40
commit a56642c7ba
1 changed files with 51 additions and 50 deletions
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101
test/dm/cmd_dm.c
View file

@ -16,59 +16,38 @@
#include <dm/test.h>
#include <dm/uclass-internal.h>
/**
* dm_display_line() - Display information about a single device
*
* Displays a single line of information with an option prefix
*
* @dev: Device to display
* @buf: Prefix to display at the start of the line
*/
static void dm_display_line(struct udevice *dev, char *buf)
static void show_devices(struct udevice *dev, int depth, int last_flag)
{
printf("%s- %c %s @ %08lx", buf,
dev->flags & DM_FLAG_ACTIVATED ? '*' : ' ',
dev->name, (ulong)map_to_sysmem(dev));
if (dev->req_seq != -1)
printf(", %d", dev->req_seq);
puts("\n");
}
int i, is_last;
struct udevice *child;
char class_name[12];
static int display_succ(struct udevice *in, char *buf)
{
int len;
int ip = 0;
char local[16];
struct udevice *pos, *n, *prev = NULL;
/* 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 ? '+' : ' ');
dm_display_line(in, buf);
if (list_empty(&in->child_head))
return 0;
len = strlen(buf);
strncpy(local, buf, sizeof(local));
snprintf(local + len, 2, "|");
if (len && local[len - 1] == '`')
local[len - 1] = ' ';
list_for_each_entry_safe(pos, n, &in->child_head, sibling_node) {
if (ip++)
display_succ(prev, local);
prev = pos;
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("|-- ");
}
}
snprintf(local + len, 2, "`");
display_succ(prev, local);
printf("%s\n", dev->name);
return 0;
}
static int dm_dump(struct udevice *dev)
{
if (!dev)
return -EINVAL;
return display_succ(dev, "");
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);
}
}
static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc,
@ -77,8 +56,30 @@ static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc,
struct udevice *root;
root = dm_root();
printf("ROOT %08lx\n", (ulong)map_to_sysmem(root));
return dm_dump(root);
if (root) {
printf(" Class Probed Name\n");
printf("----------------------------------------\n");
show_devices(root, -1, 0);
}
return 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->req_seq != -1)
printf(", %d", dev->req_seq);
puts("\n");
}
static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc,
@ -99,7 +100,7 @@ static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc,
if (list_empty(&uc->dev_head))
continue;
list_for_each_entry(dev, &uc->dev_head, uclass_node) {
dm_display_line(dev, "");
dm_display_line(dev);
}
puts("\n");
}