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Diffstat (limited to 'nuttx/configs/px4fmu/include/drv_mpu6000.h')
-rw-r--r--nuttx/configs/px4fmu/include/drv_mpu6000.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/nuttx/configs/px4fmu/include/drv_mpu6000.h b/nuttx/configs/px4fmu/include/drv_mpu6000.h
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+++ b/nuttx/configs/px4fmu/include/drv_mpu6000.h
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+/*
+ * Copyright (C) 2012 Lorenz Meier. 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 of the author or the names of 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.
+ */
+
+/*
+ * Driver for the Invense MPU-6000 gyroscope
+ */
+
+/* IMPORTANT NOTES:
+ *
+ * SPI max. clock frequency: 10 Mhz
+ * CS has to be high before transfer,
+ * go low right before transfer and
+ * go high again right after transfer
+ *
+ */
+
+#include <sys/ioctl.h>
+
+#define _MPU6000BASE 0x7600
+#define MPU6000C(_x) _IOC(_MPU6000BASE, _x)
+
+/*
+ * Sets the sensor internal sampling rate, and if a buffer
+ * has been configured, the rate at which entries will be
+ * added to the buffer.
+ */
+#define MPU6000_SETRATE MPU6000C(1)
+
+#define MPU6000_RATE_95HZ_LP_12_5HZ ((0<<7) | (0<<6) | (0<<5) | (0<<4))
+
+/*
+ * Sets the sensor internal range.
+ */
+#define MPU6000_SETRANGE MPU6000C(2)
+
+#define MPU6000_RANGE_250DPS (0<<4)
+
+#define MPU6000_RATE_95HZ ((0<<6) | (0<<4))
+
+
+
+/*
+ * Sets the address of a shared MPU6000_buffer
+ * structure that is maintained by the driver.
+ *
+ * If zero is passed as the address, disables
+ * the buffer updating.
+ */
+#define MPU6000_SETBUFFER MPU6000C(3)
+
+struct MPU6000_buffer {
+ uint32_t size; /* number of entries in the samples[] array */
+ uint32_t next; /* the next entry that will be populated */
+ struct {
+ uint16_t x;
+ uint16_t y;
+ uint16_t z;
+ uint16_t roll;
+ uint16_t pitch;
+ uint16_t yaw;
+ } samples[];
+};
+
+extern int mpu6000_attach(struct spi_dev_s *spi, int spi_id);