bdddc76997
Related: b17c074a18
Log:
Error: sensors/ms56xx_uorb.c:145:20: error: initialization of 'int (*)(struct sensor_lowerhalf_s *, struct file *, uint32_t *)' {aka 'int (*)(struct sensor_lowerhalf_s *, struct file *, unsigned int *)'} from incompatible pointer type 'int (*)(struct sensor_lowerhalf_s *, struct file *, long unsigned int *)' [-Werror=incompatible-pointer-types]
145 | .set_interval = ms56xx_set_interval,
| ^~~~~~~~~~~~~~~~~~~
sensors/ms56xx_uorb.c:145:20: note: (near initialization for 'g_sensor_ops.set_interval')
cc1: all warnings being treated as errors
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
770 lines
20 KiB
C
770 lines
20 KiB
C
/****************************************************************************
|
|
* drivers/sensors/bmm150_uorb.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <debug.h>
|
|
#include <stdio.h>
|
|
#include <sys/param.h>
|
|
|
|
#include <nuttx/mutex.h>
|
|
#include <nuttx/signal.h>
|
|
#include <nuttx/kthread.h>
|
|
#include <nuttx/kmalloc.h>
|
|
|
|
#include <nuttx/sensors/bmm150.h>
|
|
#include <nuttx/sensors/sensor.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#define BMM150_CHIPID_VAL 0x32
|
|
|
|
#define BMM150_CHIPID 0x40
|
|
#define BMM150_DATA_X_LSB 0x42
|
|
#define BMM150_DATA_X_MSB 0x43
|
|
#define BMM150_DATA_Y_LSB 0x44
|
|
#define BMM150_DATA_Y_MSB 0x45
|
|
#define BMM150_DATA_Z_LSB 0x46
|
|
#define BMM150_DATA_Z_MSB 0x47
|
|
#define BMM150_RHALL_LSB 0x48
|
|
#define BMM150_RHALL_MSB 0x49
|
|
#define BMM150_IRQSTAT 0x4a
|
|
#define BMM150_POWER 0x4b
|
|
#define BMM150_MODE 0x4c
|
|
#define BMM150_INTEN 0x4d
|
|
#define BMM150_INTCFG 0x4e
|
|
#define BMM150_LOW_THR 0x4f
|
|
#define BMM150_HIGH_THR 0x50
|
|
#define BMM150_REPXY 0x51
|
|
#define BMM150_REPZ 0x52
|
|
|
|
/* TRIM registers - NVM */
|
|
|
|
#define BMM150_TRIM_X1 0x5d /* 0 */
|
|
#define BMM150_TRIM_Y1 0x5e /* 1 */
|
|
#define BMM150_TRIM_Z4_LSB 0x62 /* 5 */
|
|
#define BMM150_TRIM_Z4_MSB 0x63 /* 6 */
|
|
#define BMM150_TRIM_X2 0x64 /* 7 */
|
|
#define BMM150_TRIM_Y2 0x65 /* 8 */
|
|
#define BMM150_TRIM_Z2_LSB 0x68 /* 11 */
|
|
#define BMM150_TRIM_Z2_MSB 0x69 /* 12 */
|
|
#define BMM150_TRIM_Z1_LSB 0x6a /* 13 */
|
|
#define BMM150_TRIM_Z1_MSB 0x6b /* 14 */
|
|
#define BMM150_TRIM_XYZ1_LSB 0x6c /* 15 */
|
|
#define BMM150_TRIM_XYZ1_MSB 0x6d /* 16 */
|
|
#define BMM150_TRIM_Z3_LSB 0x6e /* 17 */
|
|
#define BMM150_TRIM_Z3_MSB 0x6f /* 18 */
|
|
#define BMM150_TRIM_XY2 0x70 /* 19 */
|
|
#define BMM150_TRIM_XY1 0x71 /* 20 */
|
|
|
|
#define POWER_CONTROL (1 << 0)
|
|
|
|
#define MODE_SELFTEST 0x01
|
|
#define MODE_OPMODE_NORMAL (0 << 1)
|
|
#define MODE_OPMODE_FORCED (1 << 1)
|
|
#define MODE_OPMODE_SLEEP (2 << 1)
|
|
#define MODE_OPMODE_MASK (3 << 1)
|
|
|
|
#define MODE_DATARATE_10HZ (0 << 3)
|
|
#define MODE_DATARATE_2HZ (1 << 3)
|
|
#define MODE_DATARATE_6HZ (2 << 3)
|
|
#define MODE_DATARATE_8HZ (3 << 3)
|
|
#define MODE_DATARATE_15HZ (4 << 3)
|
|
#define MODE_DATARATE_20HZ (5 << 3)
|
|
#define MODE_DATARATE_25HZ (6 << 3)
|
|
#define MODE_DATARATE_30HZ (7 << 3)
|
|
|
|
#define MODE_ADV_SELFTEST0 (1 << 6)
|
|
#define MODE_ADV_SELFTEST1 (1 << 7)
|
|
|
|
#define INTCFG_EN_X (1 << 3)
|
|
#define INTCFG_EN_Y (1 << 4)
|
|
#define INTCFG_EN_Z (1 << 5)
|
|
|
|
/****************************************************************************
|
|
* Private Type Definitions
|
|
****************************************************************************/
|
|
|
|
struct bmm150_trim_s
|
|
{
|
|
int8_t x1;
|
|
int8_t y1;
|
|
int8_t x2;
|
|
int8_t y2;
|
|
uint16_t z1;
|
|
int16_t z2;
|
|
int16_t z3;
|
|
int16_t z4;
|
|
int8_t xy1;
|
|
int8_t xy2;
|
|
uint16_t xyz1;
|
|
};
|
|
|
|
/* Used by the driver to manage the device */
|
|
|
|
struct bmm150_sensor_dev_s
|
|
{
|
|
struct sensor_lowerhalf_s lower;
|
|
struct bmm150_trim_s trim;
|
|
bool enabled;
|
|
struct bmm150_config_s config;
|
|
uint32_t freq;
|
|
mutex_t lock;
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
uint32_t interval;
|
|
uint64_t last_update;
|
|
sem_t run;
|
|
#endif
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
static int bmm150_activate(FAR struct sensor_lowerhalf_s *lower,
|
|
FAR struct file *filep, bool enable);
|
|
#ifndef CONFIG_SENSORS_BMM150_POLL
|
|
static int bmm150_fetch(FAR struct sensor_lowerhalf_s *lower,
|
|
FAR struct file *filep,
|
|
FAR char *buffer, size_t buflen);
|
|
#endif
|
|
static int bmm150_set_interval(FAR struct sensor_lowerhalf_s *lower,
|
|
FAR struct file *filep,
|
|
FAR uint32_t *period_us);
|
|
|
|
/* Helpers */
|
|
|
|
static float bmm150_getx(FAR struct bmm150_sensor_dev_s *dev,
|
|
FAR int16_t *data);
|
|
static float bmm150_gety(FAR struct bmm150_sensor_dev_s *dev,
|
|
FAR int16_t *data);
|
|
static float bmm150_getz(FAR struct bmm150_sensor_dev_s *dev,
|
|
FAR int16_t *data);
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
static const struct sensor_ops_s g_bmm150_sensor_ops =
|
|
{
|
|
NULL, /* open */
|
|
NULL, /* close */
|
|
bmm150_activate,
|
|
bmm150_set_interval,
|
|
NULL, /* batch */
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
NULL, /* fetch */
|
|
#else
|
|
bmm150_fetch,
|
|
#endif
|
|
NULL, /* flush */
|
|
NULL, /* selftest */
|
|
NULL, /* set_calibvalue */
|
|
NULL, /* calibrate */
|
|
NULL, /* get_info */
|
|
NULL, /* control */
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_getreg8
|
|
*
|
|
* Description:
|
|
* Read from an 8-bit BMM150 register
|
|
*
|
|
****************************************************************************/
|
|
|
|
static uint8_t bmm150_getreg8(FAR struct bmm150_sensor_dev_s *priv,
|
|
uint8_t regaddr)
|
|
{
|
|
struct i2c_msg_s msg[2];
|
|
uint8_t regval = 0;
|
|
int ret;
|
|
|
|
msg[0].frequency = priv->freq;
|
|
msg[0].addr = priv->config.addr;
|
|
msg[0].flags = I2C_M_NOSTOP;
|
|
msg[0].buffer = ®addr;
|
|
msg[0].length = 1;
|
|
|
|
msg[1].frequency = priv->freq;
|
|
msg[1].addr = priv->config.addr;
|
|
msg[1].flags = I2C_M_READ;
|
|
msg[1].buffer = ®val;
|
|
msg[1].length = 1;
|
|
|
|
ret = I2C_TRANSFER(priv->config.i2c, msg, 2);
|
|
if (ret < 0)
|
|
{
|
|
snerr("I2C_TRANSFER failed: %d\n", ret);
|
|
}
|
|
|
|
return regval;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_getregs
|
|
*
|
|
* Description:
|
|
* Read cnt bytes from specified dev_addr and reg_addr
|
|
*
|
|
****************************************************************************/
|
|
|
|
void bmm150_getregs(FAR struct bmm150_sensor_dev_s *priv, uint8_t regaddr,
|
|
FAR uint8_t *regval, int len)
|
|
{
|
|
struct i2c_msg_s msg[2];
|
|
int ret;
|
|
|
|
msg[0].frequency = priv->freq;
|
|
msg[0].addr = priv->config.addr;
|
|
msg[0].flags = I2C_M_NOSTOP;
|
|
msg[0].buffer = ®addr;
|
|
msg[0].length = 1;
|
|
|
|
msg[1].frequency = priv->freq;
|
|
msg[1].addr = priv->config.addr;
|
|
msg[1].flags = I2C_M_READ;
|
|
msg[1].buffer = regval;
|
|
msg[1].length = len;
|
|
|
|
ret = I2C_TRANSFER(priv->config.i2c, msg, 2);
|
|
if (ret < 0)
|
|
{
|
|
snerr("I2C_TRANSFER failed: %d\n", ret);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_putreg8
|
|
*
|
|
* Description:
|
|
* Write to an 8-bit BMM150 register
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void bmm150_putreg8(FAR struct bmm150_sensor_dev_s *priv,
|
|
uint8_t regaddr, uint8_t regval)
|
|
{
|
|
struct i2c_msg_s msg[2];
|
|
uint8_t txbuffer[2];
|
|
int ret;
|
|
|
|
txbuffer[0] = regaddr;
|
|
txbuffer[1] = regval;
|
|
|
|
msg[0].frequency = priv->freq;
|
|
msg[0].addr = priv->config.addr;
|
|
msg[0].flags = 0;
|
|
msg[0].buffer = txbuffer;
|
|
msg[0].length = 2;
|
|
|
|
ret = I2C_TRANSFER(priv->config.i2c, msg, 1);
|
|
if (ret < 0)
|
|
{
|
|
snerr("I2C_TRANSFER failed: %d\n", ret);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_initialize
|
|
*
|
|
* Description:
|
|
* Intialzie BMM150 driver
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int bmm150_initialzie(FAR struct bmm150_sensor_dev_s *dev)
|
|
{
|
|
uint8_t data[21];
|
|
uint16_t u16;
|
|
int16_t i16;
|
|
uint8_t id = 0;
|
|
int ret = OK;
|
|
|
|
/* Set Power Control */
|
|
|
|
bmm150_putreg8(dev, BMM150_POWER, POWER_CONTROL);
|
|
|
|
/* Start-Up Time */
|
|
|
|
up_mdelay(3);
|
|
|
|
/* Read Chip ID */
|
|
|
|
id = bmm150_getreg8(dev, BMM150_CHIPID);
|
|
if (id != BMM150_CHIPID_VAL)
|
|
{
|
|
/* Chip ID is not Correct */
|
|
|
|
snerr("Wrong chip ID! %02x\n", id);
|
|
ret = -ENODEV;
|
|
goto errout;
|
|
}
|
|
|
|
/* Get TRIM registers */
|
|
|
|
bmm150_getregs(dev, BMM150_TRIM_X1, (FAR uint8_t *)data, 20);
|
|
|
|
dev->trim.x1 = (int8_t)data[0];
|
|
dev->trim.y1 = (int8_t)data[1];
|
|
dev->trim.x2 = (int8_t)data[7];
|
|
dev->trim.y2 = (int8_t)data[8];
|
|
u16 = ((uint16_t)(data[14] << 8) + data[11]);
|
|
dev->trim.z1 = u16;
|
|
i16 = ((int16_t)(data[12] << 8) + data[11]);
|
|
dev->trim.z2 = i16;
|
|
i16 = ((int16_t)(data[18] << 8) + data[17]);
|
|
dev->trim.z3 = i16;
|
|
i16 = ((int16_t)(data[6] << 8) + data[7]);
|
|
dev->trim.z4 = i16;
|
|
dev->trim.xy1 = (int8_t)data[20];
|
|
dev->trim.xy2 = (int8_t)data[19];
|
|
u16 = ((uint16_t)(data[16] << 8) + data[15]);
|
|
dev->trim.xyz1 = u16;
|
|
|
|
errout:
|
|
|
|
/* Clear Power Control */
|
|
|
|
bmm150_putreg8(dev, BMM150_POWER, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_activate
|
|
****************************************************************************/
|
|
|
|
static int bmm150_activate(FAR struct sensor_lowerhalf_s *lower,
|
|
FAR struct file *filep, bool enable)
|
|
{
|
|
FAR struct bmm150_sensor_dev_s *dev = NULL;
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
bool start_thread = false;
|
|
#endif
|
|
uint8_t val = 0;
|
|
|
|
dev = (FAR struct bmm150_sensor_dev_s *)lower;
|
|
|
|
nxmutex_lock(&dev->lock);
|
|
|
|
if (enable)
|
|
{
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
if (!dev->enabled)
|
|
{
|
|
start_thread = true;
|
|
dev->last_update = sensor_get_timestamp();
|
|
}
|
|
#endif
|
|
|
|
/* Set Power Control */
|
|
|
|
bmm150_putreg8(dev, BMM150_POWER, POWER_CONTROL);
|
|
|
|
/* Start-Up Time */
|
|
|
|
up_mdelay(3);
|
|
|
|
/* Set Normal Mode */
|
|
|
|
val = bmm150_getreg8(dev, BMM150_MODE);
|
|
val &= ~MODE_OPMODE_MASK;
|
|
val |= MODE_OPMODE_NORMAL;
|
|
bmm150_putreg8(dev, BMM150_MODE, val);
|
|
|
|
/* Enable XYZ - active low */
|
|
|
|
val = 0;
|
|
bmm150_putreg8(dev, BMM150_INTCFG, val);
|
|
}
|
|
else
|
|
{
|
|
/* Set Sleep Mode */
|
|
|
|
val = bmm150_getreg8(dev, BMM150_MODE);
|
|
val |= MODE_OPMODE_SLEEP;
|
|
bmm150_putreg8(dev, BMM150_MODE, val);
|
|
}
|
|
|
|
dev->enabled = enable;
|
|
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
if (start_thread)
|
|
{
|
|
/* Wake up the thread */
|
|
|
|
nxsem_post(&dev->run);
|
|
}
|
|
#endif
|
|
|
|
nxmutex_unlock(&dev->lock);
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_getx
|
|
****************************************************************************/
|
|
|
|
static float bmm150_getx(FAR struct bmm150_sensor_dev_s *dev,
|
|
FAR int16_t *data)
|
|
{
|
|
float tmp = 0.0f;
|
|
float x0 = 0.0f;
|
|
float x1 = 0.0f;
|
|
float x2 = 0.0f;
|
|
float x3 = 0.0f;
|
|
float x4 = 0.0f;
|
|
|
|
/* TODO: check overflow */
|
|
|
|
x0 = dev->trim.xyz1 * 16384.0f / data[3];
|
|
tmp = x0 - 16384.0f;
|
|
x1 = dev->trim.xy2 * (tmp * tmp / 268435456.0f);
|
|
x2 = x1 + tmp * dev->trim.xy1 / 16384.0f;
|
|
x3 = dev->trim.x2 + 160.0f;
|
|
x4 = data[0] * (x2 + 256.0f) * x3;
|
|
tmp = ((x4 / 8192.0f) + dev->trim.x1 * 8.0f) / 16.0f;
|
|
|
|
return tmp;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_gety
|
|
****************************************************************************/
|
|
|
|
static float bmm150_gety(FAR struct bmm150_sensor_dev_s *dev,
|
|
FAR int16_t *data)
|
|
{
|
|
float tmp = 0.0f;
|
|
float y0 = 0.0f;
|
|
float y1 = 0.0f;
|
|
float y2 = 0.0f;
|
|
float y3 = 0.0f;
|
|
float y4 = 0.0f;
|
|
|
|
/* TODO: check overflow */
|
|
|
|
y0 = dev->trim.xyz1 * 16384.0f / data[3];
|
|
tmp = y0 - 16384.0f;
|
|
y1 = dev->trim.xy2 * (tmp * tmp / 268435456.0f);
|
|
y2 = y1 + tmp * dev->trim.xy1 / 16384.0f;
|
|
y3 = dev->trim.y2 + 160.0f;
|
|
y4 = data[1] * (y2 + 256.0f) * y3;
|
|
tmp = ((y4 / 8192.0f) + dev->trim.y1 * 8.0f) / 16.0f;
|
|
|
|
return tmp;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_getz
|
|
****************************************************************************/
|
|
|
|
static float bmm150_getz(FAR struct bmm150_sensor_dev_s *dev,
|
|
FAR int16_t *data)
|
|
{
|
|
float tmp = 0.0f;
|
|
float z0 = 0.0f;
|
|
float z1 = 0.0f;
|
|
float z2 = 0.0f;
|
|
float z3 = 0.0f;
|
|
float z4 = 0.0f;
|
|
float z5 = 0.0f;
|
|
|
|
/* TODO: check overflow */
|
|
|
|
z0 = data[2] - dev->trim.z4;
|
|
z1 = data[3] - dev->trim.xyz1;
|
|
z2 = dev->trim.z3 * z1;
|
|
z3 = dev->trim.z1 * data[3] / 32768.0f;
|
|
z4 = dev->trim.z2 + z3;
|
|
z5 = z0 * 121072.0f - z2;
|
|
tmp = (z5 / (z4 * 4.0f)) / 16.0f;
|
|
|
|
return tmp;
|
|
}
|
|
|
|
#ifndef CONFIG_SENSORS_BMM150_POLL
|
|
/****************************************************************************
|
|
* Name: bmm150_fetch
|
|
****************************************************************************/
|
|
|
|
static int bmm150_fetch(FAR struct sensor_lowerhalf_s *lower,
|
|
FAR struct file *filep,
|
|
FAR char *buffer, size_t buflen)
|
|
{
|
|
FAR struct bmm150_sensor_dev_s *dev =
|
|
(FAR struct bmm150_sensor_dev_s *)lower;
|
|
struct sensor_mag mag_data;
|
|
int16_t data[4];
|
|
uint64_t now = sensor_get_timestamp();
|
|
int ret = 0;
|
|
|
|
nxmutex_lock(&dev->lock);
|
|
|
|
if (!dev->enabled)
|
|
{
|
|
ret = -EACCES;
|
|
goto errout;
|
|
}
|
|
|
|
if (buflen != sizeof(mag_data))
|
|
{
|
|
ret = -EINVAL;
|
|
goto errout;
|
|
}
|
|
|
|
/* Get data */
|
|
|
|
do
|
|
{
|
|
bmm150_getregs(dev, BMM150_DATA_X_LSB, (FAR uint8_t *)data, 8);
|
|
}
|
|
while (!(data[3] & 1));
|
|
|
|
/* Correct data */
|
|
|
|
data[0] >>= 3;
|
|
data[1] >>= 3;
|
|
data[2] >>= 1;
|
|
data[3] >>= 2;
|
|
|
|
/* Get compensated data */
|
|
|
|
mag_data.timestamp = now;
|
|
mag_data.x = bmm150_getx(dev, data);
|
|
mag_data.y = bmm150_gety(dev, data);
|
|
mag_data.z = bmm150_getz(dev, data);
|
|
|
|
memcpy(buffer, &mag_data, sizeof(mag_data));
|
|
ret = sizeof(mag_data);
|
|
|
|
errout:
|
|
nxmutex_unlock(&dev->lock);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_set_interval
|
|
****************************************************************************/
|
|
|
|
static int bmm150_set_interval(FAR struct sensor_lowerhalf_s *lower,
|
|
FAR struct file *filep,
|
|
FAR uint32_t *interval)
|
|
{
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
FAR struct bmm150_sensor_dev_s *dev =
|
|
(FAR struct bmm150_sensor_dev_s *)lower;
|
|
|
|
dev->interval = *interval;
|
|
#endif
|
|
|
|
return OK;
|
|
}
|
|
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
/****************************************************************************
|
|
* Name: bmm150_thread
|
|
*
|
|
* Description: Thread for performing interval measurement cycle and data
|
|
* read.
|
|
*
|
|
* Parameter:
|
|
* argc - Number opf arguments
|
|
* argv - Pointer to argument list
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int bmm150_thread(int argc, FAR char **argv)
|
|
{
|
|
FAR struct bmm150_sensor_dev_s *dev =
|
|
(FAR struct bmm150_sensor_dev_s *)((uintptr_t)strtoul(argv[1], NULL,
|
|
16));
|
|
struct sensor_mag mag_data;
|
|
int16_t data[4];
|
|
int ret = 0;
|
|
|
|
while (true)
|
|
{
|
|
if (!dev->enabled)
|
|
{
|
|
/* Waiting to be woken up */
|
|
|
|
ret = nxsem_wait(&dev->run);
|
|
if (ret < 0)
|
|
{
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (dev->enabled)
|
|
{
|
|
/* Get data */
|
|
|
|
bmm150_getregs(dev, BMM150_DATA_X_LSB, (FAR uint8_t *)data, 8);
|
|
|
|
/* Correct data */
|
|
|
|
data[0] >>= 3;
|
|
data[1] >>= 3;
|
|
data[2] >>= 1;
|
|
data[3] >>= 2;
|
|
|
|
/* Get compensated data */
|
|
|
|
mag_data.timestamp = sensor_get_timestamp();
|
|
mag_data.x = bmm150_getx(dev, data);
|
|
mag_data.y = bmm150_gety(dev, data);
|
|
mag_data.z = bmm150_getz(dev, data);
|
|
dev->lower.push_event(dev->lower.priv,
|
|
&mag_data, sizeof(mag_data));
|
|
}
|
|
|
|
/* Sleeping thread before fetching the next sensor data */
|
|
|
|
nxsig_usleep(dev->interval);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: bmm150_register_uorb
|
|
*
|
|
* Description:
|
|
* Register the BMM150 uorb device as 'devpath'
|
|
*
|
|
* Input Parameters:
|
|
* devno - The user specifies device number, from 0.
|
|
* config - device configuration
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int bmm150_register_uorb(int devno, FAR struct bmm150_config_s *config)
|
|
{
|
|
FAR struct bmm150_sensor_dev_s *dev = NULL;
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
FAR char *argv[2];
|
|
char arg1[32];
|
|
#endif
|
|
int ret = OK;
|
|
|
|
/* Without config info, we can't do anything. */
|
|
|
|
if (config == NULL)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Initialize the device structure. */
|
|
|
|
dev = kmm_malloc(sizeof(struct bmm150_sensor_dev_s));
|
|
if (dev == NULL)
|
|
{
|
|
snerr("ERROR: Failed to allocate bmm150 device instance\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(dev, 0, sizeof(struct bmm150_sensor_dev_s));
|
|
nxmutex_init(&dev->lock);
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
nxsem_init(&dev->run, 0, 0);
|
|
#endif
|
|
|
|
/* Configure dev */
|
|
|
|
dev->config.i2c = config->i2c;
|
|
dev->config.addr = config->addr;
|
|
dev->freq = CONFIG_BMM150_I2C_FREQUENCY;
|
|
|
|
/* Register sensor */
|
|
|
|
dev->lower.type = SENSOR_TYPE_MAGNETIC_FIELD;
|
|
dev->lower.ops = &g_bmm150_sensor_ops;
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
dev->enabled = false;
|
|
dev->interval = CONFIG_SENSORS_BMM150_POLL_INTERVAL;
|
|
#endif
|
|
|
|
/* Check Device ID */
|
|
|
|
ret = bmm150_initialzie(dev);
|
|
if (ret < 0)
|
|
{
|
|
snerr("Failed to initialize driver: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Regsiter driver */
|
|
|
|
ret = sensor_register(&dev->lower, devno);
|
|
if (ret < 0)
|
|
{
|
|
goto mag_err;
|
|
}
|
|
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
/* Create thread for polling sensor data */
|
|
|
|
snprintf(arg1, 16, "%p", dev);
|
|
argv[0] = arg1;
|
|
argv[1] = NULL;
|
|
|
|
ret = kthread_create("bmm150_thread", SCHED_PRIORITY_DEFAULT,
|
|
CONFIG_SENSORS_BMM150_THREAD_STACKSIZE,
|
|
bmm150_thread,
|
|
argv);
|
|
if (ret < 0)
|
|
{
|
|
goto thr_err;
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
|
|
#ifdef CONFIG_SENSORS_BMM150_POLL
|
|
thr_err:
|
|
#endif
|
|
sensor_unregister(&dev->lower, devno);
|
|
mag_err:
|
|
kmm_free(dev);
|
|
return ret;
|
|
}
|