diff options
Diffstat (limited to 'drivers/misc/mpu3050/accel/lsm303a.c')
| -rwxr-xr-x | drivers/misc/mpu3050/accel/lsm303a.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/drivers/misc/mpu3050/accel/lsm303a.c b/drivers/misc/mpu3050/accel/lsm303a.c deleted file mode 100755 index b849496..0000000 --- a/drivers/misc/mpu3050/accel/lsm303a.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - $License: - Copyright (C) 2010 InvenSense Corporation, All Rights Reserved. - - 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; either version 2 of the License, or - (at your option) any later version. - - 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, see <http://www.gnu.org/licenses/>. - $ - */ - -/** - * @defgroup ACCELDL (Motion Library - Accelerometer Driver Layer) - * @brief Provides the interface to setup and handle an accelerometers - * connected to the secondary I2C interface of the gyroscope. - * - * @{ - * @file lsm303a.c - * @brief Accelerometer setup and handling methods for ST LSM303 - */ - -/* ------------------ */ -/* - Include Files. - */ -/* ------------------ */ - -#ifdef __KERNEL__ -#include <linux/module.h> -#endif - -#include "mpu.h" -#include "mlsl.h" -#include "mlos.h" - -#include <log.h> -#undef MPL_LOG_TAG -#define MPL_LOG_TAG "MPL-acc" - -#define ACCEL_ST_SLEEP_REG (0x20) -#define ACCEL_ST_SLEEP_MASK (0x20) - -/* --------------------- */ -/* - Variables. - */ -/* --------------------- */ - -/***************************************** - Accelerometer Initialization Functions -*****************************************/ - -int lsm303dlha_suspend(void *mlsl_handle, - struct ext_slave_descr *slave, - struct ext_slave_platform_data *pdata) -{ - int result; - unsigned char reg; - - result = - MLSLSerialRead(mlsl_handle, pdata->address, ACCEL_ST_SLEEP_REG, - 1, ®); - ERROR_CHECK(result); - reg &= ~(0x27); - result = - MLSLSerialWriteSingle(mlsl_handle, pdata->address, - ACCEL_ST_SLEEP_REG, reg); - ERROR_CHECK(result); - return result; -} - -/* full scale setting - register & mask */ -#define ACCEL_ST_CTRL_REG (0x23) -#define ACCEL_ST_CTRL_MASK (0x30) - -int lsm303dlha_resume(void *mlsl_handle, - struct ext_slave_descr *slave, - struct ext_slave_platform_data *pdata) -{ - int result = ML_SUCCESS; - unsigned char reg; - - result = - MLSLSerialRead(mlsl_handle, pdata->address, ACCEL_ST_SLEEP_REG, - 1, ®); - ERROR_CHECK(result); - reg |= 0x27; - /*wake up if sleeping */ - result = - MLSLSerialWriteSingle(mlsl_handle, pdata->address, - ACCEL_ST_SLEEP_REG, reg); - ERROR_CHECK(result); - - result = - MLSLSerialWriteSingle(mlsl_handle, pdata->address, 0x20, 0x37); - ERROR_CHECK(result); - MLOSSleep(500); - - reg = 0x40; - - /* Full Scale */ - reg &= ~ACCEL_ST_CTRL_MASK; - if (slave->range.mantissa == 4) { - slave->range.fraction = 960; - reg |= 0x10; - } else if (slave->range.mantissa == 8) { - slave->range.fraction = 1920; - reg |= 0x30; - } else { - slave->range.mantissa = 2; - slave->range.fraction = 480; - reg |= 0x00; - } - - result = - MLSLSerialWriteSingle(mlsl_handle, pdata->address, 0x23, reg); - ERROR_CHECK(result); - - /* Configure high pass filter */ - result = - MLSLSerialWriteSingle(mlsl_handle, pdata->address, 0x21, 0x0F); - ERROR_CHECK(result); - result = - MLSLSerialWriteSingle(mlsl_handle, pdata->address, 0x32, 0x00); - ERROR_CHECK(result); - /* Configure INT1_DURATION */ - result = - MLSLSerialWriteSingle(mlsl_handle, pdata->address, 0x33, 0x7F); - ERROR_CHECK(result); - /* Configure INT1_CFG */ - result = - MLSLSerialWriteSingle(mlsl_handle, pdata->address, 0x30, 0x95); - ERROR_CHECK(result); - MLOSSleep(50); - return result; -} - -int lsm303dlha_read(void *mlsl_handle, - struct ext_slave_descr *slave, - struct ext_slave_platform_data *pdata, - unsigned char *data) -{ - int result; - result = MLSLSerialRead(mlsl_handle, pdata->address, - slave->reg, slave->len, data); - return result; -} - -struct ext_slave_descr lsm303dlha_descr = { - /*.init = */ NULL, - /*.exit = */ NULL, - /*.suspend = */ lsm303dlha_suspend, - /*.resume = */ lsm303dlha_resume, - /*.read = */ lsm303dlha_read, - /*.config = */ NULL, - /*.get_config = */ NULL, - /*.name = */ "lsm303dlha", - /*.type = */ EXT_SLAVE_TYPE_ACCELEROMETER, - /*.id = */ ACCEL_ID_LSM303, - /*.reg = */ (0x28 | 0x80), /* 0x80 for burst reads */ - /*.len = */ 6, - /*.endian = */ EXT_SLAVE_BIG_ENDIAN, - /*.range = */ {2, 480}, -}; - -struct ext_slave_descr *lsm303dlha_get_slave_descr(void) -{ - return &lsm303dlha_descr; -} -EXPORT_SYMBOL(lsm303dlha_get_slave_descr); - -/** - * @} -**/ |