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Diffstat (limited to 'nuttx/configs/px4fmu/src/drv_led.c')
-rw-r--r--nuttx/configs/px4fmu/src/drv_led.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/nuttx/configs/px4fmu/src/drv_led.c b/nuttx/configs/px4fmu/src/drv_led.c
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+/****************************************************************************
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/*
+ * led driver for PX4FMU
+ *
+ * This is something of an experiment currently (ha, get it?)
+ */
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/spi.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "chip.h"
+#include "stm32_internal.h"
+#include "px4fmu-internal.h"
+
+#include <arch/board/drv_led.h>
+
+static int px4fmu_led_ioctl(struct file *filep, int cmd, unsigned long arg);
+static ssize_t px4fmu_led_pseudoread(struct file *filp, FAR char *buffer, size_t buflen);
+
+static const struct file_operations px4fmu_led_fops = {
+ .read = px4fmu_led_pseudoread,
+ .ioctl = px4fmu_led_ioctl,
+};
+
+int
+px4fmu_led_init(void)
+{
+ /* register the driver */
+ return register_driver("/dev/led", &px4fmu_led_fops, 0666, NULL);
+}
+
+static ssize_t
+px4fmu_led_pseudoread(struct file *filp, FAR char *buffer, size_t buflen)
+{
+ return 0;
+}
+
+static int
+px4fmu_led_ioctl(struct file *filep, int cmd, unsigned long arg)
+{
+ int result = 0;
+
+ switch (cmd) {
+
+ case LED_ON:
+ switch (arg) {
+ case 0:
+ case 1:
+ up_ledon(arg);
+ break;
+ default:
+ result = -1;
+ break;
+ }
+ break;
+
+ case LED_OFF:
+ switch (arg) {
+ case 0:
+ case 1:
+ up_ledoff(arg);
+ break;
+ default:
+ result = -1;
+ break;
+ }
+ break;
+ default:
+ result = -1;
+ break;
+ }
+ return result;
+}
+