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Diffstat (limited to 'src/drivers/ao_mpu6000.h')
| -rw-r--r-- | src/drivers/ao_mpu6000.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/drivers/ao_mpu6000.h b/src/drivers/ao_mpu6000.h new file mode 100644 index 00000000..ca76b081 --- /dev/null +++ b/src/drivers/ao_mpu6000.h @@ -0,0 +1,161 @@ +/* + * Copyright © 2012 Keith Packard <keithp@keithp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_MPU6000_H_ +#define _AO_MPU6000_H_ + +#define MPU6000_ADDR_WRITE 0xd0 +#define MPU6000_ADDR_READ 0xd1 + +#define MPU6000_SMPRT_DIV 0x19 + +#define MPU6000_CONFIG 0x1a + +#define MPU6000_CONFIG_EXT_SYNC_SET 3 +#define MPU6000_CONFIG_EXT_SYNC_SET_DISABLED 0 +#define MPU6000_CONFIG_EXT_SYNC_SET_TEMP_OUT_L 1 +#define MPU6000_CONFIG_EXT_SYNC_SET_GYRO_XOUT_L 2 +#define MPU6000_CONFIG_EXT_SYNC_SET_GYRO_YOUT_L 3 +#define MPU6000_CONFIG_EXT_SYNC_SET_GYRO_ZOUT_L 4 +#define MPU6000_CONFIG_EXT_SYNC_SET_ACCEL_XOUT_L 5 +#define MPU6000_CONFIG_EXT_SYNC_SET_ACCEL_YOUT_L 6 +#define MPU6000_CONFIG_EXT_SYNC_SET_ACCEL_ZOUT_L 7 +#define MPU6000_CONFIG_EXT_SYNC_SET_MASK 7 + +#define MPU6000_CONFIG_DLPF_CFG 0 +#define MPU6000_CONFIG_DLPF_CFG_260_256 0 +#define MPU6000_CONFIG_DLPF_CFG_184_188 1 +#define MPU6000_CONFIG_DLPF_CFG_94_98 2 +#define MPU6000_CONFIG_DLPF_CFG_44_42 3 +#define MPU6000_CONFIG_DLPF_CFG_21_20 4 +#define MPU6000_CONFIG_DLPF_CFG_10_10 5 +#define MPU6000_CONFIG_DLPF_CFG_5_5 6 +#define MPU6000_CONFIG_DLPF_CFG_MASK 7 + +#define MPU6000_GYRO_CONFIG 0x1b +# define MPU600_GYRO_CONFIG_XG_ST 7 +# define MPU600_GYRO_CONFIG_YG_ST 6 +# define MPU600_GYRO_CONFIG_ZG_ST 5 +# define MPU600_GYRO_CONFIG_FS_SEL 3 +# define MPU600_GYRO_CONFIG_FS_SEL_250 0 +# define MPU600_GYRO_CONFIG_FS_SEL_500 1 +# define MPU600_GYRO_CONFIG_FS_SEL_1000 2 +# define MPU600_GYRO_CONFIG_FS_SEL_2000 3 +# define MPU600_GYRO_CONFIG_FS_SEL_MASK 3 + +#define MPU6000_ACCEL_CONFIG 0x1c +# define MPU600_ACCEL_CONFIG_XA_ST 7 +# define MPU600_ACCEL_CONFIG_YA_ST 6 +# define MPU600_ACCEL_CONFIG_ZA_ST 5 +# define MPU600_ACCEL_CONFIG_AFS_SEL 3 +# define MPU600_ACCEL_CONFIG_AFS_SEL_2G 0 +# define MPU600_ACCEL_CONFIG_AFS_SEL_4G 1 +# define MPU600_ACCEL_CONFIG_AFS_SEL_8G 2 +# define MPU600_ACCEL_CONFIG_AFS_SEL_16G 3 +# define MPU600_ACCEL_CONFIG_AFS_SEL_MASK 3 +# define MPU600_ACCEL_CONFIG_ACCEL_HPF 0 +# define MPU600_ACCEL_CONFIG_ACCEL_HPF_RESET 0 +# define MPU600_ACCEL_CONFIG_ACCEL_HPF_5Hz 1 +# define MPU600_ACCEL_CONFIG_ACCEL_HPF_2_5Hz 2 +# define MPU600_ACCEL_CONFIG_ACCEL_HPF_1_25Hz 3 +# define MPU600_ACCEL_CONFIG_ACCEL_HPF_0_63Hz 4 +# define MPU600_ACCEL_CONFIG_ACCEL_HPF_HOLD 7 +# define MPU600_ACCEL_CONFIG_ACCEL_HPF_MASK 7 + +#define MPU6000_INT_ENABLE 0x38 +#define MPU6000_INT_ENABLE_FF_EN 7 +#define MPU6000_INT_ENABLE_MOT_EN 6 +#define MPU6000_INT_ENABLE_ZMOT_EN 5 +#define MPU6000_INT_ENABLE_FIFO_OFLOW_EN 4 +#define MPU6000_INT_ENABLE_I2C_MST_INT_EN 3 +#define MPU6000_INT_ENABLE_DATA_RDY_EN 0 + +#define MPU6000_INT_STATUS 0x3a +#define MPU6000_INT_STATUS_FF_EN 7 +#define MPU6000_INT_STATUS_MOT_EN 6 +#define MPU6000_INT_STATUS_ZMOT_EN 5 +#define MPU6000_INT_STATUS_FIFO_OFLOW_EN 4 +#define MPU6000_INT_STATUS_I2C_MST_INT_EN 3 +#define MPU6000_INT_STATUS_DATA_RDY_EN 0 + +#define MPU6000_ACCEL_XOUT_H 0x3b +#define MPU6000_ACCEL_XOUT_L 0x3c +#define MPU6000_ACCEL_YOUT_H 0x3d +#define MPU6000_ACCEL_YOUT_L 0x3e +#define MPU6000_ACCEL_ZOUT_H 0x3f +#define MPU6000_ACCEL_ZOUT_L 0x40 +#define MPU6000_TEMP_H 0x41 +#define MPU6000_TEMP_L 0x42 +#define MPU6000_GYRO_XOUT_H 0x43 +#define MPU6000_GYRO_XOUT_L 0x44 +#define MPU6000_GYRO_YOUT_H 0x45 +#define MPU6000_GYRO_YOUT_L 0x46 +#define MPU6000_GYRO_ZOUT_H 0x47 +#define MPU6000_GYRO_ZOUT_L 0x48 + +#define MPU6000_SIGNAL_PATH_RESET 0x68 +#define MPU6000_SIGNAL_PATH_RESET_GYRO_RESET 2 +#define MPU6000_SIGNAL_PATH_RESET_ACCEL_RESET 1 +#define MPU6000_SIGNAL_PATH_RESET_TEMP_RESET 0 + +#define MPU6000_USER_CONTROL 0x6a +#define MPU6000_USER_CONTROL_FIFO_EN 6 +#define MPU6000_USER_CONTROL_I2C_MST_EN 5 +#define MPU6000_USER_CONTROL_I2C_IF_DIS 4 +#define MPU6000_USER_CONTROL_FIFO_RESET 2 +#define MPU6000_USER_CONTROL_I2C_MST_RESET 1 +#define MPU6000_USER_CONTROL_SIG_COND_RESET 0 + +#define MPU6000_PWR_MGMT_1 0x6b +#define MPU6000_PWR_MGMT_1_DEVICE_RESET 7 +#define MPU6000_PWR_MGMT_1_SLEEP 6 +#define MPU6000_PWR_MGMT_1_CYCLE 5 +#define MPU6000_PWR_MGMT_1_TEMP_DIS 3 +#define MPU6000_PWR_MGMT_1_CLKSEL 0 +#define MPU6000_PWR_MGMT_1_CLKSEL_INTERNAL 0 +#define MPU6000_PWR_MGMT_1_CLKSEL_PLL_X_AXIS 1 +#define MPU6000_PWR_MGMT_1_CLKSEL_PLL_Y_AXIS 2 +#define MPU6000_PWR_MGMT_1_CLKSEL_PLL_Z_AXIS 3 +#define MPU6000_PWR_MGMT_1_CLKSEL_PLL_EXTERNAL_32K 4 +#define MPU6000_PWR_MGMT_1_CLKSEL_PLL_EXTERNAL_19M 5 +#define MPU6000_PWR_MGMT_1_CLKSEL_STOP 7 +#define MPU6000_PWR_MGMT_1_CLKSEL_MASK 7 + +#define MPU6000_PWR_MGMT_2 0x6c + +#define MPU6000_WHO_AM_I 0x75 + +/* Self test acceleration is approximately 0.5g */ +#define MPU6000_ST_ACCEL(full_scale) (32767 / ((full_scale) * 2)) + +/* Self test gyro is approximately 50°/s */ +#define MPU6000_ST_GYRO(full_scale) ((int16_t) (((int32_t) 32767 * (int32_t) 50) / (full_scale))) + +struct ao_mpu6000_sample { + int16_t accel_x; + int16_t accel_y; + int16_t accel_z; + int16_t temp; + int16_t gyro_x; + int16_t gyro_y; + int16_t gyro_z; +}; + +void +ao_mpu6000_init(void); + +#endif /* _AO_MPU6000_H_ */ |