diff options
Diffstat (limited to 'src/drivers/boards/px4fmu-v1/px4fmu_led.c')
| -rw-r--r-- | src/drivers/boards/px4fmu-v1/px4fmu_led.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/drivers/boards/px4fmu-v1/px4fmu_led.c b/src/drivers/boards/px4fmu-v1/px4fmu_led.c new file mode 100644 index 000000000..ea91f34ad --- /dev/null +++ b/src/drivers/boards/px4fmu-v1/px4fmu_led.c @@ -0,0 +1,115 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file px4fmu_led.c + * + * PX4FMU LED backend. + */ + +#include <nuttx/config.h> + +#include <stdbool.h> + +#include "stm32.h" +#include "board_config.h" + +#include <arch/board/board.h> + +/* + * Ideally we'd be able to get these from up_internal.h, + * but since we want to be able to disable the NuttX use + * of leds for system indication at will and there is no + * separate switch, we need to build independent of the + * CONFIG_ARCH_LEDS configuration switch. + */ +__BEGIN_DECLS +extern void led_init(); +extern void led_on(int led); +extern void led_off(int led); +extern void led_toggle(int led); +__END_DECLS + +__EXPORT void led_init() +{ + /* Configure LED1-2 GPIOs for output */ + + stm32_configgpio(GPIO_LED1); + stm32_configgpio(GPIO_LED2); +} + +__EXPORT void led_on(int led) +{ + if (led == 0) + { + /* Pull down to switch on */ + stm32_gpiowrite(GPIO_LED1, false); + } + if (led == 1) + { + /* Pull down to switch on */ + stm32_gpiowrite(GPIO_LED2, false); + } +} + +__EXPORT void led_off(int led) +{ + if (led == 0) + { + /* Pull up to switch off */ + stm32_gpiowrite(GPIO_LED1, true); + } + if (led == 1) + { + /* Pull up to switch off */ + stm32_gpiowrite(GPIO_LED2, true); + } +} + +__EXPORT void led_toggle(int led) +{ + if (led == 0) + { + if (stm32_gpioread(GPIO_LED1)) + stm32_gpiowrite(GPIO_LED1, false); + else + stm32_gpiowrite(GPIO_LED1, true); + } + if (led == 1) + { + if (stm32_gpioread(GPIO_LED2)) + stm32_gpiowrite(GPIO_LED2, false); + else + stm32_gpiowrite(GPIO_LED2, true); + } +} |