*
* Copyright 2013 Oleksandr Kravchenko <x0199363@ti.com>
*
+ * Support for BMA250 (c) Peter Meerwald <pmeerw@pmeerw.net>
+ *
* This file is subject to the terms and conditions of version 2 of
* the GNU General Public License. See the file COPYING in the main
* directory of this archive for more details.
+ *
+ * SPI is not supported by driver
+ * BMA180: 7-bit I2C slave address 0x40 or 0x41
+ * BMA250: 7-bit I2C slave address 0x18 or 0x19
*/
#include <linux/module.h>
#define BMA180_DRV_NAME "bma180"
#define BMA180_IRQ_NAME "bma180_event"
+enum {
+ BMA180,
+ BMA250,
+};
+
+struct bma180_data;
+
+struct bma180_part_info {
+ const struct iio_chan_spec *channels;
+ unsigned num_channels;
+ const int *scale_table;
+ unsigned num_scales;
+ const int *bw_table;
+ unsigned num_bw;
+
+ u8 int_reset_reg, int_reset_mask;
+ u8 sleep_reg, sleep_mask;
+ u8 bw_reg, bw_mask;
+ u8 scale_reg, scale_mask;
+ u8 power_reg, power_mask, lowpower_val;
+ u8 int_enable_reg, int_enable_mask;
+ u8 softreset_reg;
+
+ int (*chip_config)(struct bma180_data *data);
+ void (*chip_disable)(struct bma180_data *data);
+};
+
/* Register set */
#define BMA180_CHIP_ID 0x00 /* Need to distinguish BMA180 from other */
#define BMA180_ACC_X_LSB 0x02 /* First of 6 registers of accel data */
+#define BMA180_TEMP 0x08
#define BMA180_CTRL_REG0 0x0d
#define BMA180_RESET 0x10
#define BMA180_BW_TCS 0x20
#define BMA180_SMP_SKIP BIT(0)
/* Bit masks for registers bit fields */
-#define BMA180_RANGE 0x0e /* Range of measured accel values*/
+#define BMA180_RANGE 0x0e /* Range of measured accel values */
#define BMA180_BW 0xf0 /* Accel bandwidth */
#define BMA180_MODE_CONFIG 0x03 /* Config operation modes */
/* We have to write this value in reset register to do soft reset */
#define BMA180_RESET_VAL 0xb6
-#define BMA_180_ID_REG_VAL 0x03
+#define BMA180_ID_REG_VAL 0x03
/* Chip power modes */
-#define BMA180_LOW_NOISE 0x00
#define BMA180_LOW_POWER 0x03
-#define BMA180_LOW_NOISE_STR "low_noise"
-#define BMA180_LOW_POWER_STR "low_power"
-
-/* Defaults values */
-#define BMA180_DEF_PMODE 0
-#define BMA180_DEF_BW 20
-#define BMA180_DEF_SCALE 2452
-
-/* Available values for sysfs */
-#define BMA180_FLP_FREQ_AVAILABLE \
- "10 20 40 75 150 300"
-#define BMA180_SCALE_AVAILABLE \
- "0.001275 0.001863 0.002452 0.003727 0.004903 0.009709 0.019417"
+#define BMA250_RANGE_REG 0x0f
+#define BMA250_BW_REG 0x10
+#define BMA250_POWER_REG 0x11
+#define BMA250_RESET_REG 0x14
+#define BMA250_INT_ENABLE_REG 0x17
+#define BMA250_INT_MAP_REG 0x1a
+#define BMA250_INT_RESET_REG 0x21
+
+#define BMA250_RANGE_MASK GENMASK(3, 0) /* Range of accel values */
+#define BMA250_BW_MASK GENMASK(4, 0) /* Accel bandwidth */
+#define BMA250_SUSPEND_MASK BIT(7) /* chip will sleep */
+#define BMA250_LOWPOWER_MASK BIT(6)
+#define BMA250_DATA_INTEN_MASK BIT(4)
+#define BMA250_INT1_DATA_MASK BIT(0)
+#define BMA250_INT_RESET_MASK BIT(7) /* Reset pending interrupts */
struct bma180_data {
struct i2c_client *client;
struct iio_trigger *trig;
+ const struct bma180_part_info *part_info;
struct mutex mutex;
- int sleep_state;
+ bool sleep_state;
int scale;
int bw;
- int pmode;
- char *buff;
+ bool pmode;
+ u8 buff[16]; /* 3x 16-bit + 8-bit + padding + timestamp */
};
-enum bma180_axis {
+enum bma180_chan {
AXIS_X,
AXIS_Y,
AXIS_Z,
+ TEMP
};
-static int bw_table[] = { 10, 20, 40, 75, 150, 300 }; /* Hz */
-static int scale_table[] = { 1275, 1863, 2452, 3727, 4903, 9709, 19417 };
+static int bma180_bw_table[] = { 10, 20, 40, 75, 150, 300 }; /* Hz */
+static int bma180_scale_table[] = { 1275, 1863, 2452, 3727, 4903, 9709, 19417 };
+
+static int bma250_bw_table[] = { 8, 16, 31, 63, 125, 250 }; /* Hz */
+static int bma250_scale_table[] = { 0, 0, 0, 38344, 0, 76590, 0, 0, 153180, 0,
+ 0, 0, 306458 };
-static int bma180_get_acc_reg(struct bma180_data *data, enum bma180_axis axis)
+static int bma180_get_data_reg(struct bma180_data *data, enum bma180_chan chan)
{
- u8 reg = BMA180_ACC_X_LSB + axis * 2;
int ret;
if (data->sleep_state)
return -EBUSY;
- ret = i2c_smbus_read_word_data(data->client, reg);
- if (ret < 0)
- dev_err(&data->client->dev,
- "failed to read accel_%c registers\n", 'x' + axis);
+ switch (chan) {
+ case TEMP:
+ ret = i2c_smbus_read_byte_data(data->client, BMA180_TEMP);
+ if (ret < 0)
+ dev_err(&data->client->dev, "failed to read temp register\n");
+ break;
+ default:
+ ret = i2c_smbus_read_word_data(data->client,
+ BMA180_ACC_X_LSB + chan * 2);
+ if (ret < 0)
+ dev_err(&data->client->dev,
+ "failed to read accel_%c register\n",
+ 'x' + chan);
+ }
return ret;
}
static int bma180_reset_intr(struct bma180_data *data)
{
- int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_RESET_INT, 1);
+ int ret = bma180_set_bits(data, data->part_info->int_reset_reg,
+ data->part_info->int_reset_mask, 1);
if (ret)
dev_err(&data->client->dev, "failed to reset interrupt\n");
return ret;
}
-static int bma180_set_new_data_intr_state(struct bma180_data *data, int state)
+static int bma180_set_new_data_intr_state(struct bma180_data *data, bool state)
{
- u8 reg_val = state ? BMA180_NEW_DATA_INT : 0x00;
- int ret = i2c_smbus_write_byte_data(data->client, BMA180_CTRL_REG3,
- reg_val);
-
+ int ret = bma180_set_bits(data, data->part_info->int_enable_reg,
+ data->part_info->int_enable_mask, state);
if (ret)
goto err;
ret = bma180_reset_intr(data);
return ret;
}
-static int bma180_set_sleep_state(struct bma180_data *data, int state)
+static int bma180_set_sleep_state(struct bma180_data *data, bool state)
{
- int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_SLEEP, state);
+ int ret = bma180_set_bits(data, data->part_info->sleep_reg,
+ data->part_info->sleep_mask, state);
if (ret) {
dev_err(&data->client->dev,
return 0;
}
-static int bma180_set_ee_writing_state(struct bma180_data *data, int state)
+static int bma180_set_ee_writing_state(struct bma180_data *data, bool state)
{
int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_EE_W, state);
if (data->sleep_state)
return -EBUSY;
- for (i = 0; i < ARRAY_SIZE(bw_table); ++i) {
- if (bw_table[i] == val) {
- ret = bma180_set_bits(data,
- BMA180_BW_TCS, BMA180_BW, i);
+ for (i = 0; i < data->part_info->num_bw; ++i) {
+ if (data->part_info->bw_table[i] == val) {
+ ret = bma180_set_bits(data, data->part_info->bw_reg,
+ data->part_info->bw_mask, i);
if (ret) {
dev_err(&data->client->dev,
"failed to set bandwidth\n");
if (data->sleep_state)
return -EBUSY;
- for (i = 0; i < ARRAY_SIZE(scale_table); ++i)
- if (scale_table[i] == val) {
- ret = bma180_set_bits(data,
- BMA180_OFFSET_LSB1, BMA180_RANGE, i);
+ for (i = 0; i < data->part_info->num_scales; ++i)
+ if (data->part_info->scale_table[i] == val) {
+ ret = bma180_set_bits(data, data->part_info->scale_reg,
+ data->part_info->scale_mask, i);
if (ret) {
dev_err(&data->client->dev,
"failed to set scale\n");
return -EINVAL;
}
-static int bma180_set_pmode(struct bma180_data *data, int mode)
+static int bma180_set_pmode(struct bma180_data *data, bool mode)
{
- u8 reg_val = mode ? BMA180_LOW_POWER : BMA180_LOW_NOISE;
- int ret = bma180_set_bits(data, BMA180_TCO_Z, BMA180_MODE_CONFIG,
- reg_val);
+ u8 reg_val = mode ? data->part_info->lowpower_val : 0;
+ int ret = bma180_set_bits(data, data->part_info->power_reg,
+ data->part_info->power_mask, reg_val);
if (ret) {
dev_err(&data->client->dev, "failed to set power mode\n");
static int bma180_soft_reset(struct bma180_data *data)
{
int ret = i2c_smbus_write_byte_data(data->client,
- BMA180_RESET, BMA180_RESET_VAL);
+ data->part_info->softreset_reg, BMA180_RESET_VAL);
if (ret)
dev_err(&data->client->dev, "failed to reset the chip\n");
int ret = i2c_smbus_read_byte_data(data->client, BMA180_CHIP_ID);
if (ret < 0)
- goto err;
- if (ret != BMA_180_ID_REG_VAL) {
- ret = -ENODEV;
- goto err;
- }
+ return ret;
+ if (ret != BMA180_ID_REG_VAL)
+ return -ENODEV;
ret = bma180_soft_reset(data);
if (ret)
- goto err;
+ return ret;
/*
* No serial transaction should occur within minimum 10 us
* after soft_reset command
*/
msleep(20);
- ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_DIS_WAKE_UP, 1);
+ ret = bma180_set_new_data_intr_state(data, false);
+ if (ret)
+ return ret;
+
+ return bma180_set_pmode(data, false);
+}
+
+static int bma180_chip_config(struct bma180_data *data)
+{
+ int ret = bma180_chip_init(data);
+
if (ret)
goto err;
- ret = bma180_set_ee_writing_state(data, 1);
+ ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_DIS_WAKE_UP, 1);
if (ret)
goto err;
- ret = bma180_set_new_data_intr_state(data, 0);
+ ret = bma180_set_ee_writing_state(data, true);
if (ret)
goto err;
ret = bma180_set_bits(data, BMA180_OFFSET_LSB1, BMA180_SMP_SKIP, 1);
if (ret)
goto err;
- ret = bma180_set_pmode(data, BMA180_DEF_PMODE);
+ ret = bma180_set_bw(data, 20); /* 20 Hz */
if (ret)
goto err;
- ret = bma180_set_bw(data, BMA180_DEF_BW);
+ ret = bma180_set_scale(data, 2452); /* 2 G */
+ if (ret)
+ goto err;
+
+ return 0;
+
+err:
+ dev_err(&data->client->dev, "failed to config the chip\n");
+ return ret;
+}
+
+static int bma250_chip_config(struct bma180_data *data)
+{
+ int ret = bma180_chip_init(data);
+
if (ret)
goto err;
- ret = bma180_set_scale(data, BMA180_DEF_SCALE);
+ ret = bma180_set_bw(data, 16); /* 16 Hz */
+ if (ret)
+ goto err;
+ ret = bma180_set_scale(data, 38344); /* 2 G */
+ if (ret)
+ goto err;
+ ret = bma180_set_bits(data, BMA250_INT_MAP_REG,
+ BMA250_INT1_DATA_MASK, 1);
if (ret)
goto err;
return 0;
err:
- dev_err(&data->client->dev, "failed to init the chip\n");
+ dev_err(&data->client->dev, "failed to config the chip\n");
return ret;
}
static void bma180_chip_disable(struct bma180_data *data)
{
- if (bma180_set_new_data_intr_state(data, 0))
+ if (bma180_set_new_data_intr_state(data, false))
goto err;
- if (bma180_set_ee_writing_state(data, 0))
+ if (bma180_set_ee_writing_state(data, false))
+ goto err;
+ if (bma180_set_sleep_state(data, true))
+ goto err;
+
+ return;
+
+err:
+ dev_err(&data->client->dev, "failed to disable the chip\n");
+}
+
+static void bma250_chip_disable(struct bma180_data *data)
+{
+ if (bma180_set_new_data_intr_state(data, false))
goto err;
- if (bma180_set_sleep_state(data, 1))
+ if (bma180_set_sleep_state(data, true))
goto err;
return;
dev_err(&data->client->dev, "failed to disable the chip\n");
}
-static IIO_CONST_ATTR(in_accel_filter_low_pass_3db_frequency_available,
- BMA180_FLP_FREQ_AVAILABLE);
-static IIO_CONST_ATTR(in_accel_scale_available, BMA180_SCALE_AVAILABLE);
+static ssize_t bma180_show_avail(char *buf, const int *vals, unsigned n,
+ bool micros)
+{
+ size_t len = 0;
+ int i;
+
+ for (i = 0; i < n; i++) {
+ if (!vals[i])
+ continue;
+ len += scnprintf(buf + len, PAGE_SIZE - len,
+ micros ? "0.%06d " : "%d ", vals[i]);
+ }
+ buf[len - 1] = '\n';
+
+ return len;
+}
+
+static ssize_t bma180_show_filter_freq_avail(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct bma180_data *data = iio_priv(dev_to_iio_dev(dev));
+
+ return bma180_show_avail(buf, data->part_info->bw_table,
+ data->part_info->num_bw, false);
+}
+
+static ssize_t bma180_show_scale_avail(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct bma180_data *data = iio_priv(dev_to_iio_dev(dev));
+
+ return bma180_show_avail(buf, data->part_info->scale_table,
+ data->part_info->num_scales, true);
+}
+
+static IIO_DEVICE_ATTR(in_accel_filter_low_pass_3db_frequency_available,
+ S_IRUGO, bma180_show_filter_freq_avail, NULL, 0);
+
+static IIO_DEVICE_ATTR(in_accel_scale_available,
+ S_IRUGO, bma180_show_scale_avail, NULL, 0);
static struct attribute *bma180_attributes[] = {
- &iio_const_attr_in_accel_filter_low_pass_3db_frequency_available.dev_attr.attr,
- &iio_const_attr_in_accel_scale_available.dev_attr.attr,
+ &iio_dev_attr_in_accel_filter_low_pass_3db_frequency_available.
+ dev_attr.attr,
+ &iio_dev_attr_in_accel_scale_available.dev_attr.attr,
NULL,
};
switch (mask) {
case IIO_CHAN_INFO_RAW:
mutex_lock(&data->mutex);
- if (iio_buffer_enabled(indio_dev))
- ret = -EBUSY;
- else
- ret = bma180_get_acc_reg(data, chan->scan_index);
+ if (iio_buffer_enabled(indio_dev)) {
+ mutex_unlock(&data->mutex);
+ return -EBUSY;
+ }
+ ret = bma180_get_data_reg(data, chan->scan_index);
mutex_unlock(&data->mutex);
if (ret < 0)
return ret;
- *val = (s16)ret >> chan->scan_type.shift;
+ *val = sign_extend32(ret >> chan->scan_type.shift,
+ chan->scan_type.realbits - 1);
return IIO_VAL_INT;
case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
*val = data->bw;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
- *val = 0;
- *val2 = data->scale;
- return IIO_VAL_INT_PLUS_MICRO;
+ switch (chan->type) {
+ case IIO_ACCEL:
+ *val = 0;
+ *val2 = data->scale;
+ return IIO_VAL_INT_PLUS_MICRO;
+ case IIO_TEMP:
+ *val = 500;
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+ case IIO_CHAN_INFO_OFFSET:
+ *val = 48; /* 0 LSB @ 24 degree C */
+ return IIO_VAL_INT;
default:
return -EINVAL;
}
}
}
-static int bma180_update_scan_mode(struct iio_dev *indio_dev,
- const unsigned long *scan_mask)
-{
- struct bma180_data *data = iio_priv(indio_dev);
-
- if (data->buff)
- devm_kfree(&indio_dev->dev, data->buff);
- data->buff = devm_kzalloc(&indio_dev->dev,
- indio_dev->scan_bytes, GFP_KERNEL);
- if (!data->buff)
- return -ENOMEM;
-
- return 0;
-}
-
static const struct iio_info bma180_info = {
.attrs = &bma180_attrs_group,
.read_raw = bma180_read_raw,
.write_raw = bma180_write_raw,
- .update_scan_mode = bma180_update_scan_mode,
.driver_module = THIS_MODULE,
};
-static const char * const bma180_power_modes[] = {
- BMA180_LOW_NOISE_STR,
- BMA180_LOW_POWER_STR,
-};
+static const char * const bma180_power_modes[] = { "low_noise", "low_power" };
static int bma180_get_power_mode(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan)
{ },
};
-#define BMA180_CHANNEL(_axis) { \
+#define BMA180_ACC_CHANNEL(_axis, _bits) { \
.type = IIO_ACCEL, \
.modified = 1, \
.channel2 = IIO_MOD_##_axis, \
.scan_index = AXIS_##_axis, \
.scan_type = { \
.sign = 's', \
- .realbits = 14, \
+ .realbits = _bits, \
.storagebits = 16, \
- .shift = 2, \
+ .shift = 16 - _bits, \
}, \
.ext_info = bma180_ext_info, \
}
+#define BMA180_TEMP_CHANNEL { \
+ .type = IIO_TEMP, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+ BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET), \
+ .scan_index = TEMP, \
+ .scan_type = { \
+ .sign = 's', \
+ .realbits = 8, \
+ .storagebits = 16, \
+ }, \
+}
+
static const struct iio_chan_spec bma180_channels[] = {
- BMA180_CHANNEL(X),
- BMA180_CHANNEL(Y),
- BMA180_CHANNEL(Z),
- IIO_CHAN_SOFT_TIMESTAMP(3),
+ BMA180_ACC_CHANNEL(X, 14),
+ BMA180_ACC_CHANNEL(Y, 14),
+ BMA180_ACC_CHANNEL(Z, 14),
+ BMA180_TEMP_CHANNEL,
+ IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static const struct iio_chan_spec bma250_channels[] = {
+ BMA180_ACC_CHANNEL(X, 10),
+ BMA180_ACC_CHANNEL(Y, 10),
+ BMA180_ACC_CHANNEL(Z, 10),
+ BMA180_TEMP_CHANNEL,
+ IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static const struct bma180_part_info bma180_part_info[] = {
+ [BMA180] = {
+ bma180_channels, ARRAY_SIZE(bma180_channels),
+ bma180_scale_table, ARRAY_SIZE(bma180_scale_table),
+ bma180_bw_table, ARRAY_SIZE(bma180_bw_table),
+ BMA180_CTRL_REG0, BMA180_RESET_INT,
+ BMA180_CTRL_REG0, BMA180_SLEEP,
+ BMA180_BW_TCS, BMA180_BW,
+ BMA180_OFFSET_LSB1, BMA180_RANGE,
+ BMA180_TCO_Z, BMA180_MODE_CONFIG, BMA180_LOW_POWER,
+ BMA180_CTRL_REG3, BMA180_NEW_DATA_INT,
+ BMA180_RESET,
+ bma180_chip_config,
+ bma180_chip_disable,
+ },
+ [BMA250] = {
+ bma250_channels, ARRAY_SIZE(bma250_channels),
+ bma250_scale_table, ARRAY_SIZE(bma250_scale_table),
+ bma250_bw_table, ARRAY_SIZE(bma250_bw_table),
+ BMA250_INT_RESET_REG, BMA250_INT_RESET_MASK,
+ BMA250_POWER_REG, BMA250_SUSPEND_MASK,
+ BMA250_BW_REG, BMA250_BW_MASK,
+ BMA250_RANGE_REG, BMA250_RANGE_MASK,
+ BMA250_POWER_REG, BMA250_LOWPOWER_MASK, 1,
+ BMA250_INT_ENABLE_REG, BMA250_DATA_INTEN_MASK,
+ BMA250_RESET_REG,
+ bma250_chip_config,
+ bma250_chip_disable,
+ },
};
static irqreturn_t bma180_trigger_handler(int irq, void *p)
mutex_lock(&data->mutex);
- for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+ for_each_set_bit(bit, indio_dev->active_scan_mask,
indio_dev->masklength) {
- ret = bma180_get_acc_reg(data, bit);
+ ret = bma180_get_data_reg(data, bit);
if (ret < 0) {
mutex_unlock(&data->mutex);
goto err;
}
((s16 *)data->buff)[i++] = ret;
}
+
mutex_unlock(&data->mutex);
iio_push_to_buffers_with_timestamp(indio_dev, data->buff, time_ns);
{
struct bma180_data *data;
struct iio_dev *indio_dev;
- struct iio_trigger *trig;
int ret;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
data->client = client;
+ data->part_info = &bma180_part_info[id->driver_data];
- ret = bma180_chip_init(data);
+ ret = data->part_info->chip_config(data);
if (ret < 0)
goto err_chip_disable;
mutex_init(&data->mutex);
-
indio_dev->dev.parent = &client->dev;
- indio_dev->channels = bma180_channels;
- indio_dev->num_channels = ARRAY_SIZE(bma180_channels);
- indio_dev->name = BMA180_DRV_NAME;
+ indio_dev->channels = data->part_info->channels;
+ indio_dev->num_channels = data->part_info->num_channels;
+ indio_dev->name = id->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &bma180_info;
- trig = iio_trigger_alloc("%s-dev%d", indio_dev->name, indio_dev->id);
- if (!trig) {
- ret = -ENOMEM;
- goto err_chip_disable;
- }
+ if (client->irq > 0) {
+ data->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,
+ indio_dev->id);
+ if (!data->trig) {
+ ret = -ENOMEM;
+ goto err_chip_disable;
+ }
- ret = devm_request_irq(&client->dev, client->irq,
- iio_trigger_generic_data_rdy_poll,
- IRQF_TRIGGER_RISING, BMA180_IRQ_NAME, trig);
- if (ret) {
- dev_err(&client->dev, "unable to request IRQ\n");
- goto err_trigger_free;
- }
+ ret = devm_request_irq(&client->dev, client->irq,
+ iio_trigger_generic_data_rdy_poll, IRQF_TRIGGER_RISING,
+ "bma180_event", data->trig);
+ if (ret) {
+ dev_err(&client->dev, "unable to request IRQ\n");
+ goto err_trigger_free;
+ }
- trig->dev.parent = &client->dev;
- trig->ops = &bma180_trigger_ops;
- iio_trigger_set_drvdata(trig, indio_dev);
- data->trig = trig;
- indio_dev->trig = iio_trigger_get(trig);
+ data->trig->dev.parent = &client->dev;
+ data->trig->ops = &bma180_trigger_ops;
+ iio_trigger_set_drvdata(data->trig, indio_dev);
+ indio_dev->trig = iio_trigger_get(data->trig);
- ret = iio_trigger_register(trig);
- if (ret)
- goto err_trigger_free;
+ ret = iio_trigger_register(data->trig);
+ if (ret)
+ goto err_trigger_free;
+ }
ret = iio_triggered_buffer_setup(indio_dev, NULL,
bma180_trigger_handler, NULL);
err_buffer_cleanup:
iio_triggered_buffer_cleanup(indio_dev);
err_trigger_unregister:
- iio_trigger_unregister(trig);
+ if (data->trig)
+ iio_trigger_unregister(data->trig);
err_trigger_free:
- iio_trigger_free(trig);
+ iio_trigger_free(data->trig);
err_chip_disable:
- bma180_chip_disable(data);
+ data->part_info->chip_disable(data);
return ret;
}
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
- iio_trigger_unregister(data->trig);
- iio_trigger_free(data->trig);
+ if (data->trig) {
+ iio_trigger_unregister(data->trig);
+ iio_trigger_free(data->trig);
+ }
mutex_lock(&data->mutex);
- bma180_chip_disable(data);
+ data->part_info->chip_disable(data);
mutex_unlock(&data->mutex);
return 0;
int ret;
mutex_lock(&data->mutex);
- ret = bma180_set_sleep_state(data, 1);
+ ret = bma180_set_sleep_state(data, true);
mutex_unlock(&data->mutex);
return ret;
int ret;
mutex_lock(&data->mutex);
- ret = bma180_set_sleep_state(data, 0);
+ ret = bma180_set_sleep_state(data, false);
mutex_unlock(&data->mutex);
return ret;
#define BMA180_PM_OPS NULL
#endif
-static struct i2c_device_id bma180_id[] = {
- { BMA180_DRV_NAME, 0 },
+static struct i2c_device_id bma180_ids[] = {
+ { "bma180", BMA180 },
+ { "bma250", BMA250 },
{ }
};
-MODULE_DEVICE_TABLE(i2c, bma180_id);
+MODULE_DEVICE_TABLE(i2c, bma180_ids);
static struct i2c_driver bma180_driver = {
.driver = {
- .name = BMA180_DRV_NAME,
+ .name = "bma180",
.owner = THIS_MODULE,
.pm = BMA180_PM_OPS,
},
.probe = bma180_probe,
.remove = bma180_remove,
- .id_table = bma180_id,
+ .id_table = bma180_ids,
};
module_i2c_driver(bma180_driver);
MODULE_AUTHOR("Kravchenko Oleksandr <x0199363@ti.com>");
MODULE_AUTHOR("Texas Instruments, Inc.");
-MODULE_DESCRIPTION("Bosch BMA180 triaxial acceleration sensor");
+MODULE_DESCRIPTION("Bosch BMA180/BMA250 triaxial acceleration sensor");
MODULE_LICENSE("GPL");
projects / deliverable / linux.git / blobdiff