diff options
| author | Bill Richardson <wfrichar@chromium.org> | 2015-05-19 00:00:23 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-06-18 05:07:55 +0000 |
| commit | b72a5f5e8e97ba86736c1e26b4204fc6d0c215da (patch) | |
| tree | 155559713f9432bbc849bbe18a12983a672db5c6 /board/discovery-stm32f072 | |
| parent | dd1987051b473e74dab3490921d0cc77c76fcac3 (diff) | |
| download | chrome-ec-b72a5f5e8e97ba86736c1e26b4204fc6d0c215da.tar.gz | |
discovery-stm32f072: Blink the LEDs
This just makes the LEDs blink continually, because I have a
development board sitting on my desk and I like to see it doing
something.
You can still force the GPIOs on and off using the tool in
extra/usb_gpio/.
BUG=none
BRANCH=none
TEST=make buildall
Try it:
sudo make BOARD=discovery-stm32f072 flash
The LEDs blink.
Force them on and off with:
cd extra/usb_gpio
make
./usb_gpio write -1 0
./usb_gpio write 0 -1
./usb_gpio write 2 0
./usb_gpio write 4 2
To resume blinking, use
./usb_gpio write 0 0
Change-Id: Iadbe7436c02de5b6eae81885d95bad154ca3692c
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/274131
Reviewed-by: Anton Staaf <robotboy@chromium.org>
Diffstat (limited to 'board/discovery-stm32f072')
| -rw-r--r-- | board/discovery-stm32f072/board.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/board/discovery-stm32f072/board.c b/board/discovery-stm32f072/board.c index c6a9b3c8a3..8303aa6a27 100644 --- a/board/discovery-stm32f072/board.c +++ b/board/discovery-stm32f072/board.c @@ -39,10 +39,22 @@ static enum gpio_signal const usb_gpio_list[] = { GPIO_LED_R, }; +/* + * This instantiates struct usb_gpio_config const usb_gpio, plus several other + * variables, all named something beginning with usb_gpio_ + */ USB_GPIO_CONFIG(usb_gpio, usb_gpio_list, USB_IFACE_GPIO, - USB_EP_GPIO) + USB_EP_GPIO); + +void usb_gpio_tick(void) +{ + if (usb_gpio.state->set_mask || usb_gpio.state->clear_mask) + return; + button_event(0); +} +DECLARE_HOOK(HOOK_TICK, usb_gpio_tick, HOOK_PRIO_DEFAULT); const void *const usb_strings[] = { [USB_STR_DESC] = usb_string_desc, |