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authorAnton Staaf <robotboy@chromium.org>2014-09-10 12:37:06 -0700
committerchrome-internal-fetch <chrome-internal-fetch@google.com>2014-10-14 23:59:15 +0000
commitc9e71277b4af9199125fbebc389ef19aa70045ab (patch)
tree00d9fc1c3611227383d3b09163bfb8f73e1c20a0 /extra/usb_gpio/Makefile
parent46102d3b4ed4958986b2272237a33513ee32fc92 (diff)
downloadchrome-ec-c9e71277b4af9199125fbebc389ef19aa70045ab.tar.gz
discovery-stm32f072: discovery USB GPIO test
Wire up the discovery's four LEDs and one user button as GPIOs that can be written and read using the new USB GPIO driver. This also adds an extra tool called usb_gpio that provides control of GPIOs from the linux command line. Signed-off-by: Anton Staaf <robotboy@chromium.org> BRANCH=None BUG=None TEST=cd board/discovery-stm32f072 ; make flash cd extra/usb_gpio ; make usb_gpio write 0x1e 0x00 Change-Id: I15115f82b15b6c35d1a34b83b7114a6bfa6a3d67 Reviewed-on: https://chromium-review.googlesource.com/218270 Reviewed-by: Anton Staaf <robotboy@chromium.org> Commit-Queue: Anton Staaf <robotboy@chromium.org> Tested-by: Anton Staaf <robotboy@chromium.org>
Diffstat (limited to 'extra/usb_gpio/Makefile')
-rw-r--r--extra/usb_gpio/Makefile34
1 files changed, 34 insertions, 0 deletions
diff --git a/extra/usb_gpio/Makefile b/extra/usb_gpio/Makefile
new file mode 100644
index 0000000000..2006c8ca67
--- /dev/null
+++ b/extra/usb_gpio/Makefile
@@ -0,0 +1,34 @@
+# Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+PROGRAM := usb_gpio
+SOURCE := $(PROGRAM).c
+LIBS :=
+LFLAGS :=
+CFLAGS := -std=gnu99 \
+ -g3 \
+ -O3 \
+ -Wall \
+ -Werror \
+ -Wpointer-arith \
+ -Wcast-align \
+ -Wcast-qual \
+ -Wundef \
+ -Wsign-compare \
+ -Wredundant-decls \
+ -Wmissing-declarations
+
+#
+# Add libusb-1.0 required flags
+#
+LIBS += $(shell pkg-config --libs libusb-1.0)
+CFLAGS += $(shell pkg-config --cflags libusb-1.0)
+
+$(PROGRAM): $(SOURCE) Makefile
+ gcc $(CFLAGS) $(SOURCE) $(LFLAGS) $(LIBS) -o $@
+
+.PHONY: clean
+
+clean:
+ rm -rf $(PROGRAM) *~