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Diffstat (limited to 'src/drivers/ao_hmc5883.h')
| -rw-r--r-- | src/drivers/ao_hmc5883.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/drivers/ao_hmc5883.h b/src/drivers/ao_hmc5883.h new file mode 100644 index 00000000..55690978 --- /dev/null +++ b/src/drivers/ao_hmc5883.h @@ -0,0 +1,85 @@ +/* + * 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_HMC5883_H_ +#define _AO_HMC5883_H_ + +#define HMC5883_ADDR_WRITE 0x3c +#define HMC5883_ADDR_READ 0x3d + +#define HMC5883_CONFIG_A 0 + +#define HMC5883_CONFIG_A_MA 5 +#define HMC5883_CONFIG_A_MA_1 0 +#define HMC5883_CONFIG_A_MA_2 1 +#define HMC5883_CONFIG_A_MA_4 2 +#define HMC5883_CONFIG_A_MA_8 3 +#define HMC5883_CONFIG_A_MA_MASK 3 + +#define HMC5883_CONFIG_A_DO 2 +#define HMC5883_CONFIG_A_DO_0_75 0 +#define HMC5883_CONFIG_A_DO_1_5 1 +#define HMC5883_CONFIG_A_DO_3 2 +#define HMC5883_CONFIG_A_DO_7_5 3 +#define HMC5883_CONFIG_A_DO_15 4 +#define HMC5883_CONFIG_A_DO_30 5 +#define HMC5883_CONFIG_A_DO_75 6 +#define HMC5883_CONFIG_A_DO_MASK 7 + +#define HMC5883_CONFIG_A_MS 0 +#define HMC5883_CONFIG_A_MS_NORMAL 0 +#define HMC5883_CONFIG_A_MS_POSITIVE_BIAS 1 +#define HMC5883_CONFIG_A_MS_NEGATIVE_BIAS 2 +#define HMC5883_CONFIG_A_MS_MASK 3 + +#define HMC5883_CONFIG_B 1 + +#define HMC5883_CONFIG_B_GN 5 +#define HMC5883_CONFIG_B_GN_0_88 0 +#define HMC5883_CONFIG_B_GN_1_3 1 +#define HMC5883_CONFIG_B_GN_1_9 2 +#define HMC5883_CONFIG_B_GN_2_5 3 +#define HMC5883_CONFIG_B_GN_4_0 4 +#define HMC5883_CONFIG_B_GN_4_7 5 +#define HMC5883_CONFIG_B_GN_5_6 6 +#define HMC5883_CONFIG_B_GN_8_1 7 +#define HMC5883_CONFIG_B_GN_MASK 7 + +#define HMC5883_MODE 2 +#define HMC5883_MODE_CONTINUOUS 0 +#define HMC5883_MODE_SINGLE 1 +#define HMC5883_MODE_IDLE 2 + +#define HMC5883_X_MSB 3 +#define HMC5883_X_LSB 4 +#define HMC5883_Y_MSB 5 +#define HMC5883_Y_LSB 6 +#define HMC5883_Z_MSB 7 +#define HMC5883_Z_LSB 8 +#define HMC5883_STATUS 9 +#define HMC5883_ID_A 10 +#define HMC5883_ID_B 11 +#define HMC5883_ID_C 12 + +struct ao_hmc5883_sample { + int16_t x, y, z; +}; + +void +ao_hmc5883_init(void); + +#endif /* _AO_HMC5883_H_ */ |