| # Copyright (c) 2018-2019 Linaro |
| # Copyright (c) 2019 Nordic Semiconductor ASA |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| import os |
| import pickle |
| import sys |
| from pathlib import Path |
| |
| ZEPHYR_BASE = str(Path(__file__).resolve().parents[2]) |
| sys.path.insert(0, os.path.join(ZEPHYR_BASE, "scripts", "dts", |
| "python-devicetree", "src")) |
| |
| from devicetree import edtlib |
| |
| # Types we support |
| # 'string', 'int', 'hex', 'bool' |
| |
| doc_mode = os.environ.get('KCONFIG_DOC_MODE') == "1" |
| |
| if not doc_mode: |
| EDT_PICKLE = os.environ.get("EDT_PICKLE") |
| |
| # The "if" handles a missing dts. |
| if EDT_PICKLE is not None and os.path.isfile(EDT_PICKLE): |
| with open(EDT_PICKLE, 'rb') as f: |
| edt = pickle.load(f) |
| else: |
| edt = None |
| |
| |
| def _warn(kconf, msg): |
| print("{}:{}: WARNING: {}".format(kconf.filename, kconf.linenr, msg)) |
| |
| |
| def _dt_units_to_scale(unit): |
| if not unit: |
| return 0 |
| if unit in {'k', 'K'}: |
| return 10 |
| if unit in {'m', 'M'}: |
| return 20 |
| if unit in {'g', 'G'}: |
| return 30 |
| |
| |
| def dt_chosen_label(kconf, _, chosen): |
| """ |
| This function takes a 'chosen' property and treats that property as a path |
| to an EDT node. If it finds an EDT node, it will look to see if that node |
| has a "label" property and return the value of that "label", if not we |
| return an empty string. |
| """ |
| if doc_mode or edt is None: |
| return "" |
| |
| node = edt.chosen_node(chosen) |
| if not node: |
| return "" |
| |
| if "label" not in node.props: |
| return node.name |
| |
| return node.props["label"].val |
| |
| |
| def dt_chosen_enabled(kconf, _, chosen): |
| """ |
| This function returns "y" if /chosen contains a property named 'chosen' |
| that points to an enabled node, and "n" otherwise |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| node = edt.chosen_node(chosen) |
| return "y" if node and node.status == "okay" else "n" |
| |
| |
| def dt_chosen_path(kconf, _, chosen): |
| """ |
| This function takes a /chosen node property and returns the path |
| to the node in the property value, or the empty string. |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| node = edt.chosen_node(chosen) |
| |
| return node.path if node else "" |
| |
| def dt_chosen_has_compat(kconf, _, chosen, compat): |
| """ |
| This function takes a /chosen node property and returns 'y' if the |
| chosen node has the provided compatible string 'compat' |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| node = edt.chosen_node(chosen) |
| |
| if node is None: |
| return "n" |
| |
| if compat in node.compats: |
| return "y" |
| |
| return "n" |
| |
| def dt_node_enabled(kconf, name, node): |
| """ |
| This function is used to test if a node is enabled (has status |
| 'okay') or not. |
| |
| The 'node' argument is a string which is either a path or an |
| alias, or both, depending on 'name'. |
| |
| If 'name' is 'dt_path_enabled', 'node' is an alias or a path. If |
| 'name' is 'dt_alias_enabled, 'node' is an alias. |
| """ |
| |
| if doc_mode or edt is None: |
| return "n" |
| |
| if name == "dt_alias_enabled": |
| if node.startswith("/"): |
| # EDT.get_node() works with either aliases or paths. If we |
| # are specifically being asked about an alias, reject paths. |
| return "n" |
| else: |
| # Make sure this is being called appropriately. |
| assert name == "dt_path_enabled" |
| |
| try: |
| node = edt.get_node(node) |
| except edtlib.EDTError: |
| return "n" |
| |
| return "y" if node and node.status == "okay" else "n" |
| |
| |
| def dt_nodelabel_enabled(kconf, _, label): |
| """ |
| This function is like dt_node_enabled(), but the 'label' argument |
| should be a node label, like "foo" is here: |
| |
| foo: some-node { ... }; |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| node = edt.label2node.get(label) |
| |
| return "y" if node and node.status == "okay" else "n" |
| |
| |
| def _node_reg_addr(node, index, unit): |
| if not node: |
| return 0 |
| |
| if not node.regs: |
| return 0 |
| |
| if int(index) >= len(node.regs): |
| return 0 |
| |
| if node.regs[int(index)].addr is None: |
| return 0 |
| |
| return node.regs[int(index)].addr >> _dt_units_to_scale(unit) |
| |
| |
| def _node_reg_size(node, index, unit): |
| if not node: |
| return 0 |
| |
| if not node.regs: |
| return 0 |
| |
| if int(index) >= len(node.regs): |
| return 0 |
| |
| if node.regs[int(index)].size is None: |
| return 0 |
| |
| return node.regs[int(index)].size >> _dt_units_to_scale(unit) |
| |
| |
| def _node_int_prop(node, prop, unit=None): |
| """ |
| This function takes a 'node' and will look to see if that 'node' has a |
| property called 'prop' and if that 'prop' is an integer type will return |
| the value of the property 'prop' as either a string int or string hex |
| value, if not we return 0. |
| |
| The function will divide the value based on 'unit': |
| None No division |
| 'k' or 'K' divide by 1024 (1 << 10) |
| 'm' or 'M' divide by 1,048,576 (1 << 20) |
| 'g' or 'G' divide by 1,073,741,824 (1 << 30) |
| """ |
| if not node: |
| return 0 |
| |
| if prop not in node.props: |
| return 0 |
| |
| if node.props[prop].type != "int": |
| return 0 |
| |
| return node.props[prop].val >> _dt_units_to_scale(unit) |
| |
| |
| def _dt_chosen_reg_addr(kconf, chosen, index=0, unit=None): |
| """ |
| This function takes a 'chosen' property and treats that property as a path |
| to an EDT node. If it finds an EDT node, it will look to see if that |
| node has a register at the given 'index' and return the address value of |
| that reg, if not we return 0. |
| |
| The function will divide the value based on 'unit': |
| None No division |
| 'k' or 'K' divide by 1024 (1 << 10) |
| 'm' or 'M' divide by 1,048,576 (1 << 20) |
| 'g' or 'G' divide by 1,073,741,824 (1 << 30) |
| """ |
| if doc_mode or edt is None: |
| return 0 |
| |
| node = edt.chosen_node(chosen) |
| |
| return _node_reg_addr(node, index, unit) |
| |
| |
| def _dt_chosen_reg_size(kconf, chosen, index=0, unit=None): |
| """ |
| This function takes a 'chosen' property and treats that property as a path |
| to an EDT node. If it finds an EDT node, it will look to see if that node |
| has a register at the given 'index' and return the size value of that reg, |
| if not we return 0. |
| |
| The function will divide the value based on 'unit': |
| None No division |
| 'k' or 'K' divide by 1024 (1 << 10) |
| 'm' or 'M' divide by 1,048,576 (1 << 20) |
| 'g' or 'G' divide by 1,073,741,824 (1 << 30) |
| """ |
| if doc_mode or edt is None: |
| return 0 |
| |
| node = edt.chosen_node(chosen) |
| |
| return _node_reg_size(node, index, unit) |
| |
| |
| def dt_chosen_reg(kconf, name, chosen, index=0, unit=None): |
| """ |
| This function just routes to the proper function and converts |
| the result to either a string int or string hex value. |
| """ |
| if name == "dt_chosen_reg_size_int": |
| return str(_dt_chosen_reg_size(kconf, chosen, index, unit)) |
| if name == "dt_chosen_reg_size_hex": |
| return hex(_dt_chosen_reg_size(kconf, chosen, index, unit)) |
| if name == "dt_chosen_reg_addr_int": |
| return str(_dt_chosen_reg_addr(kconf, chosen, index, unit)) |
| if name == "dt_chosen_reg_addr_hex": |
| return hex(_dt_chosen_reg_addr(kconf, chosen, index, unit)) |
| |
| |
| def _dt_node_reg_addr(kconf, path, index=0, unit=None): |
| """ |
| This function takes a 'path' and looks for an EDT node at that path. If it |
| finds an EDT node, it will look to see if that node has a register at the |
| given 'index' and return the address value of that reg, if not we return 0. |
| |
| The function will divide the value based on 'unit': |
| None No division |
| 'k' or 'K' divide by 1024 (1 << 10) |
| 'm' or 'M' divide by 1,048,576 (1 << 20) |
| 'g' or 'G' divide by 1,073,741,824 (1 << 30) |
| """ |
| if doc_mode or edt is None: |
| return 0 |
| |
| try: |
| node = edt.get_node(path) |
| except edtlib.EDTError: |
| return 0 |
| |
| return _node_reg_addr(node, index, unit) |
| |
| |
| def _dt_node_reg_size(kconf, path, index=0, unit=None): |
| """ |
| This function takes a 'path' and looks for an EDT node at that path. If it |
| finds an EDT node, it will look to see if that node has a register at the |
| given 'index' and return the size value of that reg, if not we return 0. |
| |
| The function will divide the value based on 'unit': |
| None No division |
| 'k' or 'K' divide by 1024 (1 << 10) |
| 'm' or 'M' divide by 1,048,576 (1 << 20) |
| 'g' or 'G' divide by 1,073,741,824 (1 << 30) |
| """ |
| if doc_mode or edt is None: |
| return 0 |
| |
| try: |
| node = edt.get_node(path) |
| except edtlib.EDTError: |
| return 0 |
| |
| return _node_reg_size(node, index, unit) |
| |
| |
| def dt_node_reg(kconf, name, path, index=0, unit=None): |
| """ |
| This function just routes to the proper function and converts |
| the result to either a string int or string hex value. |
| """ |
| if name == "dt_node_reg_size_int": |
| return str(_dt_node_reg_size(kconf, path, index, unit)) |
| if name == "dt_node_reg_size_hex": |
| return hex(_dt_node_reg_size(kconf, path, index, unit)) |
| if name == "dt_node_reg_addr_int": |
| return str(_dt_node_reg_addr(kconf, path, index, unit)) |
| if name == "dt_node_reg_addr_hex": |
| return hex(_dt_node_reg_addr(kconf, path, index, unit)) |
| |
| def _dt_node_bool_prop_generic(node_search_function, search_arg, prop): |
| """ |
| This function takes the 'node_search_function' and uses it to search for |
| a node with 'search_arg' and if node exists, checks if 'prop' exists |
| inside the node and is a boolean, if it is true, returns "y". |
| Otherwise, it returns "n". |
| """ |
| try: |
| node = node_search_function(search_arg) |
| except edtlib.EDTError: |
| return "n" |
| |
| if node is None: |
| return "n" |
| |
| if prop not in node.props: |
| return "n" |
| |
| if node.props[prop].type != "boolean": |
| return "n" |
| |
| if node.props[prop].val: |
| return "y" |
| |
| return "n" |
| |
| def dt_node_bool_prop(kconf, _, path, prop): |
| """ |
| This function takes a 'path' and looks for an EDT node at that path. If it |
| finds an EDT node, it will look to see if that node has a boolean property |
| by the name of 'prop'. If the 'prop' exists it will return "y" otherwise |
| we return "n". |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| return _dt_node_bool_prop_generic(edt.get_node, path, prop) |
| |
| def dt_nodelabel_bool_prop(kconf, _, label, prop): |
| """ |
| This function takes a 'label' and looks for an EDT node with that label. |
| If it finds an EDT node, it will look to see if that node has a boolean |
| property by the name of 'prop'. If the 'prop' exists it will return "y" |
| otherwise we return "n". |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| return _dt_node_bool_prop_generic(edt.label2node.get, label, prop) |
| |
| def _dt_node_has_prop_generic(node_search_function, search_arg, prop): |
| """ |
| This function takes the 'node_search_function' and uses it to search for |
| a node with 'search_arg' and if node exists, then checks if 'prop' |
| exists inside the node and returns "y". Otherwise, it returns "n". |
| """ |
| try: |
| node = node_search_function(search_arg) |
| except edtlib.EDTError: |
| return "n" |
| |
| if node is None: |
| return "n" |
| |
| if prop in node.props: |
| return "y" |
| |
| return "n" |
| |
| def dt_node_has_prop(kconf, _, path, prop): |
| """ |
| This function takes a 'path' and looks for an EDT node at that path. If it |
| finds an EDT node, it will look to see if that node has a property |
| by the name of 'prop'. If the 'prop' exists it will return "y" otherwise |
| it returns "n". |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| return _dt_node_has_prop_generic(edt.get_node, path, prop) |
| |
| def dt_nodelabel_has_prop(kconf, _, label, prop): |
| """ |
| This function takes a 'label' and looks for an EDT node with that label. |
| If it finds an EDT node, it will look to see if that node has a property |
| by the name of 'prop'. If the 'prop' exists it will return "y" otherwise |
| it returns "n". |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| return _dt_node_has_prop_generic(edt.label2node.get, label, prop) |
| |
| def dt_node_int_prop(kconf, name, path, prop, unit=None): |
| """ |
| This function takes a 'path' and property name ('prop') looks for an EDT |
| node at that path. If it finds an EDT node, it will look to see if that |
| node has a property called 'prop' and if that 'prop' is an integer type |
| will return the value of the property 'prop' as either a string int or |
| string hex value, if not we return 0. |
| |
| The function will divide the value based on 'unit': |
| None No division |
| 'k' or 'K' divide by 1024 (1 << 10) |
| 'm' or 'M' divide by 1,048,576 (1 << 20) |
| 'g' or 'G' divide by 1,073,741,824 (1 << 30) |
| """ |
| if doc_mode or edt is None: |
| return "0" |
| |
| try: |
| node = edt.get_node(path) |
| except edtlib.EDTError: |
| return "0" |
| |
| if name == "dt_node_int_prop_int": |
| return str(_node_int_prop(node, prop, unit)) |
| if name == "dt_node_int_prop_hex": |
| return hex(_node_int_prop(node, prop, unit)) |
| |
| def dt_node_str_prop_equals(kconf, _, path, prop, val): |
| """ |
| This function takes a 'path' and property name ('prop') looks for an EDT |
| node at that path. If it finds an EDT node, it will look to see if that |
| node has a property 'prop' of type string. If that 'prop' is equal to 'val' |
| it will return "y" otherwise return "n". |
| """ |
| |
| if doc_mode or edt is None: |
| return "n" |
| |
| try: |
| node = edt.get_node(path) |
| except edtlib.EDTError: |
| return "n" |
| |
| if prop not in node.props: |
| return "n" |
| |
| if node.props[prop].type != "string": |
| return "n" |
| |
| if node.props[prop].val == val: |
| return "y" |
| |
| return "n" |
| |
| |
| def dt_has_compat(kconf, _, compat): |
| """ |
| This function takes a 'compat' and returns "y" if any compatible node |
| can be found in the EDT, otherwise it returns "n". |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| return "y" if compat in edt.compat2nodes else "n" |
| |
| |
| def dt_compat_enabled(kconf, _, compat): |
| """ |
| This function takes a 'compat' and returns "y" if we find a status "okay" |
| compatible node in the EDT otherwise we return "n" |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| return "y" if compat in edt.compat2okay else "n" |
| |
| |
| def dt_compat_on_bus(kconf, _, compat, bus): |
| """ |
| This function takes a 'compat' and returns "y" if we find an "enabled" |
| compatible node in the EDT which is on bus 'bus'. It returns "n" otherwise. |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| if compat in edt.compat2okay: |
| for node in edt.compat2okay[compat]: |
| if node.on_bus is not None and node.on_bus == bus: |
| return "y" |
| |
| return "n" |
| |
| |
| def dt_nodelabel_has_compat(kconf, _, label, compat): |
| """ |
| This function takes a 'label' and looks for an EDT node with that label. |
| If it finds such node, it returns "y" if this node is compatible with |
| the provided 'compat'. Otherwise, it return "n" . |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| node = edt.label2node.get(label) |
| |
| if node and compat in node.compats: |
| return "y" |
| |
| return "n" |
| |
| |
| def dt_nodelabel_enabled_with_compat(kconf, _, label, compat): |
| """ |
| This function takes a 'label' and returns "y" if an "enabled" node with |
| such label can be found in the EDT and that node is compatible with the |
| provided 'compat', otherwise it returns "n". |
| """ |
| if doc_mode or edt is None: |
| return "n" |
| |
| if compat in edt.compat2okay: |
| for node in edt.compat2okay[compat]: |
| if label in node.labels: |
| return "y" |
| |
| return "n" |
| |
| |
| def dt_nodelabel_path(kconf, _, label): |
| """ |
| This function takes a node label (not a label property) and |
| returns the path to the node which has that label, or an empty |
| string if there is no such node. |
| """ |
| if doc_mode or edt is None: |
| return "" |
| |
| node = edt.label2node.get(label) |
| |
| return node.path if node else "" |
| |
| |
| def shields_list_contains(kconf, _, shield): |
| """ |
| Return "n" if cmake environment variable 'SHIELD_AS_LIST' doesn't exist. |
| Return "y" if 'shield' is present list obtained after 'SHIELD_AS_LIST' |
| has been split using ";" as a separator and "n" otherwise. |
| """ |
| try: |
| list = os.environ['SHIELD_AS_LIST'] |
| except KeyError: |
| return "n" |
| |
| return "y" if shield in list.split(";") else "n" |
| |
| |
| # Keys in this dict are the function names as they appear |
| # in Kconfig files. The values are tuples in this form: |
| # |
| # (python_function, minimum_number_of_args, maximum_number_of_args) |
| # |
| # Each python function is given a kconf object and its name in the |
| # Kconfig file, followed by arguments from the Kconfig file. |
| # |
| # See the kconfiglib documentation for more details. |
| functions = { |
| "dt_has_compat": (dt_has_compat, 1, 1), |
| "dt_compat_enabled": (dt_compat_enabled, 1, 1), |
| "dt_compat_on_bus": (dt_compat_on_bus, 2, 2), |
| "dt_chosen_label": (dt_chosen_label, 1, 1), |
| "dt_chosen_enabled": (dt_chosen_enabled, 1, 1), |
| "dt_chosen_path": (dt_chosen_path, 1, 1), |
| "dt_chosen_has_compat": (dt_chosen_has_compat, 2, 2), |
| "dt_path_enabled": (dt_node_enabled, 1, 1), |
| "dt_alias_enabled": (dt_node_enabled, 1, 1), |
| "dt_nodelabel_enabled": (dt_nodelabel_enabled, 1, 1), |
| "dt_nodelabel_enabled_with_compat": (dt_nodelabel_enabled_with_compat, 2, 2), |
| "dt_chosen_reg_addr_int": (dt_chosen_reg, 1, 3), |
| "dt_chosen_reg_addr_hex": (dt_chosen_reg, 1, 3), |
| "dt_chosen_reg_size_int": (dt_chosen_reg, 1, 3), |
| "dt_chosen_reg_size_hex": (dt_chosen_reg, 1, 3), |
| "dt_node_reg_addr_int": (dt_node_reg, 1, 3), |
| "dt_node_reg_addr_hex": (dt_node_reg, 1, 3), |
| "dt_node_reg_size_int": (dt_node_reg, 1, 3), |
| "dt_node_reg_size_hex": (dt_node_reg, 1, 3), |
| "dt_node_bool_prop": (dt_node_bool_prop, 2, 2), |
| "dt_nodelabel_bool_prop": (dt_nodelabel_bool_prop, 2, 2), |
| "dt_node_has_prop": (dt_node_has_prop, 2, 2), |
| "dt_nodelabel_has_prop": (dt_nodelabel_has_prop, 2, 2), |
| "dt_node_int_prop_int": (dt_node_int_prop, 2, 3), |
| "dt_node_int_prop_hex": (dt_node_int_prop, 2, 3), |
| "dt_node_str_prop_equals": (dt_node_str_prop_equals, 3, 3), |
| "dt_nodelabel_has_compat": (dt_nodelabel_has_compat, 2, 2), |
| "dt_nodelabel_path": (dt_nodelabel_path, 1, 1), |
| "shields_list_contains": (shields_list_contains, 1, 1), |
| } |
