1 files changed, 88 insertions, 0 deletions
diff --git a/klippy/pins.py b/klippy/pins.py
new file mode 100644
index 000000000..fad41643a
--- /dev/null
+++ b/klippy/pins.py
@@ -0,0 +1,88 @@
+# Pin name to pin number definitions
+#
+# Copyright (C) 2016  Kevin O'Connor <kevin@koconnor.net>
+#
+# This file may be distributed under the terms of the GNU GPLv3 license.
+
+import re
+
+def avr_pins(port_count):
+    pins = {}
+    for port in range(port_count):
+        portchr = chr(65 + port)
+        if portchr == 'I':
+            continue
+        for portbit in range(8):
+            pins['P%c%d' % (portchr, portbit)] = port * 8 + portbit
+    return pins
+
+PINS_atmega164 = avr_pins(4)
+PINS_atmega1280 = avr_pins(12)
+
+MCU_PINS = {
+    "atmega168": PINS_atmega164, "atmega644p": PINS_atmega164,
+    "atmega1280": PINS_atmega1280, "atmega2560": PINS_atmega1280,
+}
+
+def mcu_to_pins(mcu):
+    return MCU_PINS.get(mcu, {})
+
+re_pin = re.compile(r'(?P<prefix>[ _]pin=)(?P<name>[^ ]*)')
+def update_command(cmd, pmap):
+    def fixup(m):
+        return m.group('prefix') + str(pmap[m.group('name')])
+    return re_pin.sub(fixup, cmd)
+
+
+######################################################################
+# Arduino mappings
+######################################################################
+
+Arduino_standard = [
+    "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PB0", "PB1",
+    "PB2", "PB3", "PB4", "PB5", "PC0", "PC1", "PC2", "PC3", "PC4", "PC5",
+]
+Arduino_analog_standard = [
+    "PC0", "PC1", "PC2", "PC3", "PC4", "PC5", "PE0", "PE1",
+]
+
+Arduino_mega = [
+    "PE0", "PE1", "PE4", "PE5", "PG5", "PE3", "PH3", "PH4", "PH5", "PH6",
+    "PB4", "PB5", "PB6", "PB7", "PJ1", "PJ0", "PH1", "PH0", "PD3", "PD2",
+    "PD1", "PD0", "PA0", "PA1", "PA2", "PA3", "PA4", "PA5", "PA6", "PA7",
+    "PC7", "PC6", "PC5", "PC4", "PC3", "PC2", "PC1", "PC0", "PD7", "PG2",
+    "PG1", "PG0", "PL7", "PL6", "PL5", "PL4", "PL3", "PL2", "PL1", "PL0",
+    "PB3", "PB2", "PB1", "PB0", "PF0", "PF1", "PF2", "PF3", "PF4", "PF5",
+    "PF6", "PF7", "PK0", "PK1", "PK2", "PK3", "PK4", "PK5", "PK6", "PK7",
+]
+Arduino_analog_mega = [
+    "PF0", "PF1", "PF2", "PF3", "PF4", "PF5",
+    "PF6", "PF7", "PK0", "PK1", "PK2", "PK3", "PK4", "PK5", "PK6", "PK7",
+]
+
+Sanguino = [
+    "PB0", "PB1", "PB2", "PB3", "PB4", "PB5", "PB6", "PB7", "PD0", "PD1",
+    "PD2", "PD3", "PD4", "PD5", "PD6", "PD7", "PC0", "PC1", "PC2", "PC3",
+    "PC4", "PC5", "PC6", "PC7", "PA0", "PA1", "PA2", "PA3", "PA4", "PA5",
+    "PA6", "PA7"
+]
+Sanguino_analog = [
+    "PA0", "PA1", "PA2", "PA3", "PA4", "PA5", "PA6", "PA7"
+]
+
+Arduino_from_mcu = {
+    "atmega168": (Arduino_standard, Arduino_analog_standard),
+    "atmega644p": (Sanguino, Sanguino_analog),
+    "atmega1280": (Arduino_mega, Arduino_analog_mega),
+    "atmega2560": (Arduino_mega, Arduino_analog_mega),
+}
+
+def map_pins(name, mcu):
+    pins = MCU_PINS.get(mcu, {})
+    if name == 'arduino':
+        dpins, apins = Arduino_from_mcu.get(mcu, [])
+        for i in range(len(dpins)):
+            pins['ar' + str(i)] = pins[dpins[i]]
+        for i in range(len(apins)):
+            pins['analog%d' % (i,)] = pins[apins[i]]
+    return pins