From 6f418fc1b068c1a41113bb2b019a5803765e1deb Mon Sep 17 00:00:00 2001
From: Dave Hylands
Date: Tue, 22 Jul 2014 07:57:36 -0700
Subject: Add support for selecting pin alternate functions from python.

Converts generted pins to use qstrs instead of string pointers.

This patch also adds the following functions:
pyb.Pin.names()
pyb.Pin.af_list()
pyb.Pin.gpio()

dir(pyb.Pin.board) and dir(pyb.Pin.cpu) also produce useful results.

pyb.Pin now takes kw args.

pyb.Pin.__str__ now prints more useful information about the pin
configuration.

I found the following functions in my boot.py to be useful:
```python
def pins():
    for pin_name in dir(pyb.Pin.board):
        pin = pyb.Pin(pin_name)
        print('{:10s} {:s}'.format(pin_name, str(pin)))

def af():
    for pin_name in dir(pyb.Pin.board):
        pin = pyb.Pin(pin_name)
        print('{:10s} {:s}'.format(pin_name, str(pin.af_list())))
```
---
 stmhal/Makefile | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'stmhal/Makefile')

diff --git a/stmhal/Makefile b/stmhal/Makefile
index 4daf665fa..d56125faf 100644
--- a/stmhal/Makefile
+++ b/stmhal/Makefile
@@ -11,7 +11,7 @@ BUILD ?= build-$(BOARD)
 include ../py/mkenv.mk
 
 # qstr definitions (must come before including py.mk)
-QSTR_DEFS = qstrdefsport.h
+QSTR_DEFS = qstrdefsport.h $(BUILD)/pins_qstr.h
 
 # include py core make definitions
 include ../py/py.mk
@@ -74,6 +74,7 @@ SRC_C = \
 	timer.c \
 	led.c \
 	pin.c \
+	pin_defs_stmhal.c \
 	pin_named_pins.c \
 	bufhelper.c \
 	i2c.c \
@@ -227,6 +228,8 @@ AF_FILE = boards/stm32f4xx-af.csv
 PREFIX_FILE = boards/stm32f4xx-prefix.c
 GEN_PINS_SRC = $(BUILD)/pins_$(BOARD).c
 GEN_PINS_HDR = $(HEADER_BUILD)/pins.h
+GEN_PINS_QSTR = $(BUILD)/pins_qstr.h
+GEN_PINS_AF_CONST = $(HEADER_BUILD)/pins-af-const.h
 
 INSERT_USB_IDS = ../tools/insert-usb-ids.py
 FILE2H = ../tools/file2h.py
@@ -247,9 +250,9 @@ $(BUILD)/main.o: $(GEN_CDCINF_HEADER)
 
 # Use a pattern rule here so that make will only call make-pins.py once to make
 # both pins_$(BOARD).c and pins.h
-$(BUILD)/%_$(BOARD).c $(HEADER_BUILD)/%.h: boards/$(BOARD)/%.csv $(MAKE_PINS) $(AF_FILE) $(PREFIX_FILE)
+$(BUILD)/%_$(BOARD).c $(HEADER_BUILD)/%.h $(HEADER_BUILD)/%-af-const.h $(BUILD)/%_qstr.h: boards/$(BOARD)/%.csv $(MAKE_PINS) $(AF_FILE) $(PREFIX_FILE) | $(HEADER_BUILD)
 	$(ECHO) "Create $@"
-	$(Q)$(PYTHON) $(MAKE_PINS) --board $(BOARD_PINS) --af $(AF_FILE) --prefix $(PREFIX_FILE) --hdr $(GEN_PINS_HDR) > $(GEN_PINS_SRC)
+	$(Q)$(PYTHON) $(MAKE_PINS) --board $(BOARD_PINS) --af $(AF_FILE) --prefix $(PREFIX_FILE) --hdr $(GEN_PINS_HDR) --qstr $(GEN_PINS_QSTR) --af-const $(GEN_PINS_AF_CONST) > $(GEN_PINS_SRC)
 
 $(BUILD)/pins_$(BOARD).o: $(BUILD)/pins_$(BOARD).c
 	$(call compile_c)
-- 
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