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

source/bootloader/u-boot-2020.01/test/py/tests/test_bind.py

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+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
+
+import os.path
+import pytest
+import re
+
+def in_tree(response, name, uclass, drv, depth, last_child):
+	lines = [x.strip() for x in response.splitlines()]
+	leaf = ' ' * 4 * depth;
+	if not last_child:
+		leaf = leaf + r'\|'
+	else:
+		leaf = leaf + '`'
+	leaf = leaf + '-- ' + name
+	line = (r' *{:10.10}    [0-9]*  \[ [ +] \]   {:20.20}  {}$'
+	        .format(uclass, drv, leaf))
+	prog = re.compile(line)
+	for l in lines:
+		if prog.match(l):
+			return True
+	return False
+
+
+@pytest.mark.buildconfigspec('cmd_bind')
+def test_bind_unbind_with_node(u_boot_console):
+
+	#bind /bind-test. Device should come up as well as its children
+	response = u_boot_console.run_command('bind  /bind-test generic_simple_bus')
+	assert response == ''
+	tree = u_boot_console.run_command('dm tree')
+	assert in_tree(tree, 'bind-test', 'simple_bus', 'generic_simple_bus', 0, True)
+	assert in_tree(tree, 'bind-test-child1', 'phy', 'phy_sandbox', 1, False)
+	assert in_tree(tree, 'bind-test-child2', 'simple_bus', 'generic_simple_bus', 1, True)
+
+	#Unbind child #1. No error expected and all devices should be there except for bind-test-child1
+	response = u_boot_console.run_command('unbind  /bind-test/bind-test-child1')
+	assert response == ''
+	tree = u_boot_console.run_command('dm tree')
+	assert in_tree(tree, 'bind-test', 'simple_bus', 'generic_simple_bus', 0, True)
+	assert 'bind-test-child1' not in tree
+	assert in_tree(tree, 'bind-test-child2', 'simple_bus', 'generic_simple_bus', 1, True)
+
+	#bind child #1. No error expected and all devices should be there
+	response = u_boot_console.run_command('bind  /bind-test/bind-test-child1 phy_sandbox')
+	assert response == ''
+	tree = u_boot_console.run_command('dm tree')
+	assert in_tree(tree, 'bind-test', 'simple_bus', 'generic_simple_bus', 0, True)
+	assert in_tree(tree, 'bind-test-child1', 'phy', 'phy_sandbox', 1, True)
+	assert in_tree(tree, 'bind-test-child2', 'simple_bus', 'generic_simple_bus', 1, False)
+
+	#Unbind child #2. No error expected and all devices should be there except for bind-test-child2
+	response = u_boot_console.run_command('unbind  /bind-test/bind-test-child2')
+	assert response == ''
+	tree = u_boot_console.run_command('dm tree')
+	assert in_tree(tree, 'bind-test', 'simple_bus', 'generic_simple_bus', 0, True)
+	assert in_tree(tree, 'bind-test-child1', 'phy', 'phy_sandbox', 1, True)
+	assert 'bind-test-child2' not in tree
+
+
+	#Bind child #2. No error expected and all devices should be there
+	response = u_boot_console.run_command('bind /bind-test/bind-test-child2 generic_simple_bus')
+	assert response == ''
+	tree = u_boot_console.run_command('dm tree')
+	assert in_tree(tree, 'bind-test', 'simple_bus', 'generic_simple_bus', 0, True)
+	assert in_tree(tree, 'bind-test-child1', 'phy', 'phy_sandbox', 1, False)
+	assert in_tree(tree, 'bind-test-child2', 'simple_bus', 'generic_simple_bus', 1, True)
+
+	#Unbind parent. No error expected. All devices should be removed and unbound
+	response = u_boot_console.run_command('unbind  /bind-test')
+	assert response == ''
+	tree = u_boot_console.run_command('dm tree')
+	assert 'bind-test' not in tree
+	assert 'bind-test-child1' not in tree
+	assert 'bind-test-child2' not in tree
+
+	#try binding invalid node with valid driver
+	response = u_boot_console.run_command('bind  /not-a-valid-node generic_simple_bus')
+	assert response != ''
+	tree = u_boot_console.run_command('dm tree')
+	assert 'not-a-valid-node' not in tree
+
+	#try binding valid node with invalid driver
+	response = u_boot_console.run_command('bind  /bind-test not_a_driver')
+	assert response != ''
+	tree = u_boot_console.run_command('dm tree')
+	assert 'bind-test' not in tree
+
+	#bind /bind-test. Device should come up as well as its children
+	response = u_boot_console.run_command('bind  /bind-test generic_simple_bus')
+	assert response == ''
+	tree = u_boot_console.run_command('dm tree')
+	assert in_tree(tree, 'bind-test', 'simple_bus', 'generic_simple_bus', 0, True)
+	assert in_tree(tree, 'bind-test-child1', 'phy', 'phy_sandbox', 1, False)
+	assert in_tree(tree, 'bind-test-child2', 'simple_bus', 'generic_simple_bus', 1, True)
+
+	response = u_boot_console.run_command('unbind  /bind-test')
+	assert response == ''
+
+def get_next_line(tree, name):
+	treelines = [x.strip() for x in tree.splitlines() if x.strip()]
+	child_line = ''
+	for idx, line in enumerate(treelines):
+		if ('-- ' + name) in line:
+			try:
+				child_line = treelines[idx+1]
+			except:
+				pass
+			break
+	return child_line
+
+@pytest.mark.buildconfigspec('cmd_bind')
+def test_bind_unbind_with_uclass(u_boot_console):
+	#bind /bind-test
+	response = u_boot_console.run_command('bind  /bind-test generic_simple_bus')
+	assert response == ''
+
+	#make sure bind-test-child2 is there and get its uclass/index pair
+	tree = u_boot_console.run_command('dm tree')
+	child2_line = [x.strip() for x in tree.splitlines() if '-- bind-test-child2' in x]
+	assert len(child2_line) == 1
+
+	child2_uclass = child2_line[0].split()[0]
+	child2_index = int(child2_line[0].split()[1])
+
+	#bind generic_simple_bus as a child of bind-test-child2
+	response = u_boot_console.run_command('bind  {} {} generic_simple_bus'.format(child2_uclass, child2_index, 'generic_simple_bus'))
+
+	#check that the child is there and its uclass/index pair is right
+	tree = u_boot_console.run_command('dm tree')
+
+	child_of_child2_line = get_next_line(tree, 'bind-test-child2')
+	assert child_of_child2_line
+	child_of_child2_index = int(child_of_child2_line.split()[1])
+	assert in_tree(tree, 'generic_simple_bus', 'simple_bus', 'generic_simple_bus', 2, True)
+	assert child_of_child2_index == child2_index + 1
+
+	#unbind the child and check it has been removed
+	response = u_boot_console.run_command('unbind  simple_bus {}'.format(child_of_child2_index))
+	assert response == ''
+	tree = u_boot_console.run_command('dm tree')
+	assert in_tree(tree, 'bind-test-child2', 'simple_bus', 'generic_simple_bus', 1, True)
+	assert not in_tree(tree, 'generic_simple_bus', 'simple_bus', 'generic_simple_bus', 2, True)
+	child_of_child2_line = get_next_line(tree, 'bind-test-child2')
+	assert child_of_child2_line == ''
+
+	#bind generic_simple_bus as a child of bind-test-child2
+	response = u_boot_console.run_command('bind  {} {} generic_simple_bus'.format(child2_uclass, child2_index, 'generic_simple_bus'))
+
+	#check that the child is there and its uclass/index pair is right
+	tree = u_boot_console.run_command('dm tree')
+	treelines = [x.strip() for x in tree.splitlines() if x.strip()]
+
+	child_of_child2_line = get_next_line(tree, 'bind-test-child2')
+	assert child_of_child2_line
+	child_of_child2_index = int(child_of_child2_line.split()[1])
+	assert in_tree(tree, 'generic_simple_bus', 'simple_bus', 'generic_simple_bus', 2, True)
+	assert child_of_child2_index == child2_index + 1
+
+	#unbind the child and check it has been removed
+	response = u_boot_console.run_command('unbind  {} {} generic_simple_bus'.format(child2_uclass, child2_index, 'generic_simple_bus'))
+	assert response == ''
+
+	tree = u_boot_console.run_command('dm tree')
+	assert in_tree(tree, 'bind-test-child2', 'simple_bus', 'generic_simple_bus', 1, True)
+
+	child_of_child2_line = get_next_line(tree, 'bind-test-child2')
+	assert child_of_child2_line == ''
+
+	#unbind the child again and check it doesn't change the tree
+	tree_old = u_boot_console.run_command('dm tree')
+	response = u_boot_console.run_command('unbind  {} {} generic_simple_bus'.format(child2_uclass, child2_index, 'generic_simple_bus'))
+	tree_new = u_boot_console.run_command('dm tree')
+
+	assert response == ''
+	assert tree_old == tree_new
+
+	response = u_boot_console.run_command('unbind  /bind-test')
+	assert response == ''