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-rwxr-xr-xtools/dtoc/dtoc.py17
-rw-r--r--tools/dtoc/fdt.py66
-rw-r--r--tools/dtoc/fdt_fallback.py4
-rw-r--r--tools/dtoc/fdt_normal.py6
-rw-r--r--tools/dtoc/fdt_util.py66
5 files changed, 80 insertions, 79 deletions
diff --git a/tools/dtoc/dtoc.py b/tools/dtoc/dtoc.py
index 10f6a12578..518aa51216 100755
--- a/tools/dtoc/dtoc.py
+++ b/tools/dtoc/dtoc.py
@@ -16,6 +16,7 @@ import sys
our_path = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(our_path, '../patman'))
+import fdt
import fdt_select
import fdt_util
@@ -33,10 +34,10 @@ PROP_IGNORE_LIST = [
# C type declarations for the tyues we support
TYPE_NAMES = {
- fdt_util.TYPE_INT: 'fdt32_t',
- fdt_util.TYPE_BYTE: 'unsigned char',
- fdt_util.TYPE_STRING: 'const char *',
- fdt_util.TYPE_BOOL: 'bool',
+ fdt.TYPE_INT: 'fdt32_t',
+ fdt.TYPE_BYTE: 'unsigned char',
+ fdt.TYPE_STRING: 'const char *',
+ fdt.TYPE_BOOL: 'bool',
};
STRUCT_PREFIX = 'dtd_'
@@ -138,13 +139,13 @@ class DtbPlatdata:
type: Data type (fdt_util)
value: Data value, as a string of bytes
"""
- if type == fdt_util.TYPE_INT:
+ if type == fdt.TYPE_INT:
return '%#x' % fdt_util.fdt32_to_cpu(value)
- elif type == fdt_util.TYPE_BYTE:
+ elif type == fdt.TYPE_BYTE:
return '%#x' % ord(value[0])
- elif type == fdt_util.TYPE_STRING:
+ elif type == fdt.TYPE_STRING:
return '"%s"' % value
- elif type == fdt_util.TYPE_BOOL:
+ elif type == fdt.TYPE_BOOL:
return 'true'
def GetCompatName(self, node):
diff --git a/tools/dtoc/fdt.py b/tools/dtoc/fdt.py
index 413d45daa4..329d03cc6b 100644
--- a/tools/dtoc/fdt.py
+++ b/tools/dtoc/fdt.py
@@ -17,6 +17,9 @@ import fdt_util
# implementation is in the FdtFallback and FdtNormal subclasses. See
# fdt_select.py for how to create an Fdt object.
+# A list of types we support
+(TYPE_BYTE, TYPE_INT, TYPE_STRING, TYPE_BOOL) = range(4)
+
def CheckErr(errnum, msg):
if errnum:
raise ValueError('Error %d: %s: %s' %
@@ -37,6 +40,69 @@ class PropBase:
self.name = name
self.value = None
+ def BytesToValue(self, bytes):
+ """Converts a string of bytes into a type and value
+
+ Args:
+ A string containing bytes
+
+ Return:
+ A tuple:
+ Type of data
+ Data, either a single element or a list of elements. Each element
+ is one of:
+ TYPE_STRING: string value from the property
+ TYPE_INT: a byte-swapped integer stored as a 4-byte string
+ TYPE_BYTE: a byte stored as a single-byte string
+ """
+ size = len(bytes)
+ strings = bytes.split('\0')
+ is_string = True
+ count = len(strings) - 1
+ if count > 0 and not strings[-1]:
+ for string in strings[:-1]:
+ if not string:
+ is_string = False
+ break
+ for ch in string:
+ if ch < ' ' or ch > '~':
+ is_string = False
+ break
+ else:
+ is_string = False
+ if is_string:
+ if count == 1:
+ return TYPE_STRING, strings[0]
+ else:
+ return TYPE_STRING, strings[:-1]
+ if size % 4:
+ if size == 1:
+ return TYPE_BYTE, bytes[0]
+ else:
+ return TYPE_BYTE, list(bytes)
+ val = []
+ for i in range(0, size, 4):
+ val.append(bytes[i:i + 4])
+ if size == 4:
+ return TYPE_INT, val[0]
+ else:
+ return TYPE_INT, val
+
+ def GetEmpty(self, type):
+ """Get an empty / zero value of the given type
+
+ Returns:
+ A single value of the given type
+ """
+ if type == TYPE_BYTE:
+ return chr(0)
+ elif type == TYPE_INT:
+ return struct.pack('<I', 0);
+ elif type == TYPE_STRING:
+ return ''
+ else:
+ return True
+
class NodeBase:
"""A device tree node
diff --git a/tools/dtoc/fdt_fallback.py b/tools/dtoc/fdt_fallback.py
index be3b5badc9..798c51097e 100644
--- a/tools/dtoc/fdt_fallback.py
+++ b/tools/dtoc/fdt_fallback.py
@@ -31,11 +31,11 @@ class Prop(PropBase):
def __init__(self, node, name, byte_list_str):
PropBase.__init__(self, node, 0, name)
if not byte_list_str.strip():
- self.type = fdt_util.TYPE_BOOL
+ self.type = fdt.TYPE_BOOL
return
self.bytes = [chr(int(byte, 16))
for byte in byte_list_str.strip().split(' ')]
- self.type, self.value = fdt_util.BytesToValue(''.join(self.bytes))
+ self.type, self.value = self.BytesToValue(''.join(self.bytes))
def GetPhandle(self):
"""Get a (single) phandle value from a property
diff --git a/tools/dtoc/fdt_normal.py b/tools/dtoc/fdt_normal.py
index ca5335ba5b..c7c86b8a88 100644
--- a/tools/dtoc/fdt_normal.py
+++ b/tools/dtoc/fdt_normal.py
@@ -33,10 +33,10 @@ class Prop(PropBase):
PropBase.__init__(self, node, offset, name)
self.bytes = bytes
if not bytes:
- self.type = fdt_util.TYPE_BOOL
+ self.type = fdt.TYPE_BOOL
self.value = True
return
- self.type, self.value = fdt_util.BytesToValue(bytes)
+ self.type, self.value = self.BytesToValue(bytes)
def GetPhandle(self):
"""Get a (single) phandle value from a property
@@ -75,7 +75,7 @@ class Prop(PropBase):
self.value = [self.value]
if type(self.value) == list and len(newprop.value) > len(self.value):
- val = fdt_util.GetEmpty(self.type)
+ val = self.GetEmpty(self.type)
while len(self.value) < len(newprop.value):
self.value.append(val)
diff --git a/tools/dtoc/fdt_util.py b/tools/dtoc/fdt_util.py
index 929b524fcf..6b572483e7 100644
--- a/tools/dtoc/fdt_util.py
+++ b/tools/dtoc/fdt_util.py
@@ -8,72 +8,6 @@
import struct
-# A list of types we support
-(TYPE_BYTE, TYPE_INT, TYPE_STRING, TYPE_BOOL) = range(4)
-
-def BytesToValue(bytes):
- """Converts a string of bytes into a type and value
-
- Args:
- A string containing bytes
-
- Return:
- A tuple:
- Type of data
- Data, either a single element or a list of elements. Each element
- is one of:
- TYPE_STRING: string value from the property
- TYPE_INT: a byte-swapped integer stored as a 4-byte string
- TYPE_BYTE: a byte stored as a single-byte string
- """
- size = len(bytes)
- strings = bytes.split('\0')
- is_string = True
- count = len(strings) - 1
- if count > 0 and not strings[-1]:
- for string in strings[:-1]:
- if not string:
- is_string = False
- break
- for ch in string:
- if ch < ' ' or ch > '~':
- is_string = False
- break
- else:
- is_string = False
- if is_string:
- if count == 1:
- return TYPE_STRING, strings[0]
- else:
- return TYPE_STRING, strings[:-1]
- if size % 4:
- if size == 1:
- return TYPE_BYTE, bytes[0]
- else:
- return TYPE_BYTE, list(bytes)
- val = []
- for i in range(0, size, 4):
- val.append(bytes[i:i + 4])
- if size == 4:
- return TYPE_INT, val[0]
- else:
- return TYPE_INT, val
-
-def GetEmpty(type):
- """Get an empty / zero value of the given type
-
- Returns:
- A single value of the given type
- """
- if type == TYPE_BYTE:
- return chr(0)
- elif type == TYPE_INT:
- return struct.pack('<I', 0);
- elif type == TYPE_STRING:
- return ''
- else:
- return True
-
def fdt32_to_cpu(val):
"""Convert a device tree cell to an integer
generated by cgit (git 2.34.1) at 2024-12-24 20:49:39 +0000