diff options
Diffstat (limited to 'drivers/iio/imu-aosp/inv_mpu6050/inv_mpu_trigger.c')
| -rw-r--r-- | drivers/iio/imu-aosp/inv_mpu6050/inv_mpu_trigger.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/drivers/iio/imu-aosp/inv_mpu6050/inv_mpu_trigger.c b/drivers/iio/imu-aosp/inv_mpu6050/inv_mpu_trigger.c deleted file mode 100644 index 03b9372c121..00000000000 --- a/drivers/iio/imu-aosp/inv_mpu6050/inv_mpu_trigger.c +++ /dev/null @@ -1,155 +0,0 @@ -/* -* Copyright (C) 2012 Invensense, Inc. -* -* This software is licensed under the terms of the GNU General Public -* License version 2, as published by the Free Software Foundation, and -* may be copied, distributed, and modified under those terms. -* -* 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. -*/ - -#include "inv_mpu_iio.h" - -static void inv_scan_query(struct iio_dev *indio_dev) -{ - struct inv_mpu6050_state *st = iio_priv(indio_dev); - - st->chip_config.gyro_fifo_enable = - test_bit(INV_MPU6050_SCAN_GYRO_X, - indio_dev->active_scan_mask) || - test_bit(INV_MPU6050_SCAN_GYRO_Y, - indio_dev->active_scan_mask) || - test_bit(INV_MPU6050_SCAN_GYRO_Z, - indio_dev->active_scan_mask); - - st->chip_config.accl_fifo_enable = - test_bit(INV_MPU6050_SCAN_ACCL_X, - indio_dev->active_scan_mask) || - test_bit(INV_MPU6050_SCAN_ACCL_Y, - indio_dev->active_scan_mask) || - test_bit(INV_MPU6050_SCAN_ACCL_Z, - indio_dev->active_scan_mask); -} - -/** - * inv_mpu6050_set_enable() - enable chip functions. - * @indio_dev: Device driver instance. - * @enable: enable/disable - */ -static int inv_mpu6050_set_enable(struct iio_dev *indio_dev, bool enable) -{ - struct inv_mpu6050_state *st = iio_priv(indio_dev); - int result; - - if (enable) { - result = inv_mpu6050_set_power_itg(st, true); - if (result) - return result; - inv_scan_query(indio_dev); - if (st->chip_config.gyro_fifo_enable) { - result = inv_mpu6050_switch_engine(st, true, - INV_MPU6050_BIT_PWR_GYRO_STBY); - if (result) - return result; - } - if (st->chip_config.accl_fifo_enable) { - result = inv_mpu6050_switch_engine(st, true, - INV_MPU6050_BIT_PWR_ACCL_STBY); - if (result) - return result; - } - result = inv_reset_fifo(indio_dev); - if (result) - return result; - } else { - result = inv_mpu6050_write_reg(st, st->reg->fifo_en, 0); - if (result) - return result; - - result = inv_mpu6050_write_reg(st, st->reg->int_enable, 0); - if (result) - return result; - - result = inv_mpu6050_write_reg(st, st->reg->user_ctrl, 0); - if (result) - return result; - - result = inv_mpu6050_switch_engine(st, false, - INV_MPU6050_BIT_PWR_GYRO_STBY); - if (result) - return result; - - result = inv_mpu6050_switch_engine(st, false, - INV_MPU6050_BIT_PWR_ACCL_STBY); - if (result) - return result; - result = inv_mpu6050_set_power_itg(st, false); - if (result) - return result; - } - st->chip_config.enable = enable; - - return 0; -} - -/** - * inv_mpu_data_rdy_trigger_set_state() - set data ready interrupt state - * @trig: Trigger instance - * @state: Desired trigger state - */ -static int inv_mpu_data_rdy_trigger_set_state(struct iio_trigger *trig, - bool state) -{ - return inv_mpu6050_set_enable(iio_trigger_get_drvdata(trig), state); -} - -static const struct iio_trigger_ops inv_mpu_trigger_ops = { - .owner = THIS_MODULE, - .set_trigger_state = &inv_mpu_data_rdy_trigger_set_state, -}; - -int inv_mpu6050_probe_trigger(struct iio_dev *indio_dev) -{ - int ret; - struct inv_mpu6050_state *st = iio_priv(indio_dev); - - st->trig = iio_trigger_alloc("%s-dev%d", - indio_dev->name, - indio_dev->id); - if (st->trig == NULL) { - ret = -ENOMEM; - goto error_ret; - } - ret = request_irq(st->client->irq, &iio_trigger_generic_data_rdy_poll, - IRQF_TRIGGER_RISING, - "inv_mpu", - st->trig); - if (ret) - goto error_free_trig; - st->trig->dev.parent = &st->client->dev; - st->trig->ops = &inv_mpu_trigger_ops; - iio_trigger_set_drvdata(st->trig, indio_dev); - ret = iio_trigger_register(st->trig); - if (ret) - goto error_free_irq; - indio_dev->trig = st->trig; - - return 0; - -error_free_irq: - free_irq(st->client->irq, st->trig); -error_free_trig: - iio_trigger_free(st->trig); -error_ret: - return ret; -} - -void inv_mpu6050_remove_trigger(struct inv_mpu6050_state *st) -{ - iio_trigger_unregister(st->trig); - free_irq(st->client->irq, st->trig); - iio_trigger_free(st->trig); -} |