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Diffstat (limited to 'src/drivers/stm32/drv_pwm_servo.h')
-rw-r--r--src/drivers/stm32/drv_pwm_servo.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/drivers/stm32/drv_pwm_servo.h b/src/drivers/stm32/drv_pwm_servo.h
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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.
+ *
+ ****************************************************************************/
+
+/**
+ * @file drv_pwm_servo.h
+ *
+ * stm32-specific PWM output data.
+ */
+
+#pragma once
+
+#include <drivers/drv_pwm_output.h>
+
+/* configuration limits */
+#define PWM_SERVO_MAX_TIMERS 4
+#define PWM_SERVO_MAX_CHANNELS 8
+
+/* array of timers dedicated to PWM servo use */
+struct pwm_servo_timer {
+ uint32_t base;
+ uint32_t clock_register;
+ uint32_t clock_bit;
+ uint32_t clock_freq;
+};
+
+/* array of channels in logical order */
+struct pwm_servo_channel {
+ uint32_t gpio;
+ uint8_t timer_index;
+ uint8_t timer_channel;
+ servo_position_t default_value;
+};
+
+/* supplied by board-specific code */
+__EXPORT extern const struct pwm_servo_timer pwm_timers[PWM_SERVO_MAX_TIMERS];
+__EXPORT extern const struct pwm_servo_channel pwm_channels[PWM_SERVO_MAX_CHANNELS];