static inline int bma250_calibration_end(struct device *dev)
{
int rc = 0;
struct driver_data *dd = dev_get_drvdata(dev);
/* power down */
bma250_power_down(dd);
dev_dbg(dev, "%s: -> power down.\n", __func__);
if (dd->recovery_power && dd->ip_dev->users) {
/* power up & reset*/
rc = bma250_power_up(dd);
if (rc)
goto calib_end_error;
/* re-schedule by a delay */
rc = bma250_config(dd, TRUE, TRUE);
if (rc)
goto calib_end_error;
schedule_delayed_work(&dd->work_data, dd->delay_jiffies);
dev_dbg(dev, "%s: -> power up.\n", __func__);
}
return rc;
calib_end_error:
dev_err(dev, "%s: Calibration end failure.(%d)\n",
__func__, rc);
return -EIO;
}
static int bma250_suspend(struct i2c_client *ic_dev, pm_message_t mesg)
{
struct driver_data *dd = bma250_ic_get_data(ic_dev);
if (dd->ip_dev->users)
bma250_power_down(dd);
return 0;
}
static int bma250_suspend(struct device *dev)
{
struct driver_data *dd = dev_get_drvdata(dev);
bma250_power_down(dd);
if (dd->pdata && dd->pdata->teardown)
dd->pdata->teardown(&dd->ic_dev->dev);
return 0;
}
static int bma250_config(struct driver_data *dd)
{
int rc;
rc = bma250_bw_handler(dd);
if (rc)
goto config_error;
rc = bma250_range_handler(dd);
if (rc)
goto config_error;
schedule_delayed_work(&dd->work_data, dd->delay_jiffies);
return rc;
config_error:
bma250_power_down(dd);
return rc;
}
static int __devexit bma250_remove(struct i2c_client *ic_dev)
{
struct driver_data *dd = bma250_ic_get_data(ic_dev);
int rc;
rc = bma250_power_down(dd);
if (rc)
dev_err(&dd->ip_dev->dev,
"%s: power down failed with error %d\n",
__func__, rc);
remove_sysfs_interfaces(&dd->ip_dev->dev);
input_unregister_device(dd->ip_dev);
bma250_remove_dbfs_entry(dd);
bma250_ic_set_data(ic_dev, NULL);
mutex_lock(&bma250_dd_lock);
list_del(&dd->next_dd);
mutex_unlock(&bma250_dd_lock);
kfree(dd);
return 0;
}
static int __devinit bma250_probe(struct i2c_client *ic_dev,
const struct i2c_device_id *id)
{
struct driver_data *dd;
int rc;
struct bma250_platform_data *pdata = ic_dev->dev.platform_data;
if (!pdata || !pdata->hw_config || !pdata->setup || !pdata->teardown)
return -ENODEV;
dd = kzalloc(sizeof(struct driver_data), GFP_KERNEL);
if (!dd) {
rc = -ENOMEM;
goto probe_exit;
}
mutex_lock(&bma250_dd_lock);
list_add_tail(&dd->next_dd, &dd_list);
mutex_unlock(&bma250_dd_lock);
dd->ic_dev = ic_dev;
INIT_DELAYED_WORK(&dd->work_data, bma250_work_f);
dd->pdata = pdata;
/* initial configuration */
dd->rate = pdata->rate;
dd->delay_jiffies = msecs_to_jiffies(dd->rate);
dd->bw_sel = pdata->reg->bw_sel;
dd->range = pdata->reg->range;
rc = bma250_power_up(dd);
if (rc)
goto probe_err_cfg;
rc = bma250_hwid(dd);
bma250_power_down(dd);
if (rc)
goto probe_err_cfg;
bma250_create_dbfs_entry(dd);
bma250_ic_set_data(ic_dev, dd);
dd->ip_dev = input_allocate_device();
if (!dd->ip_dev) {
rc = -ENOMEM;
goto probe_err_reg;
}
input_set_drvdata(dd->ip_dev, dd);
dd->ip_dev->open = bma250_open;
dd->ip_dev->close = bma250_release;
dd->ip_dev->name = BMA250_NAME;
dd->ip_dev->id.vendor = BMA250_VENDORID;
dd->ip_dev->id.product = 1;
dd->ip_dev->id.version = 1;
__set_bit(EV_ABS, dd->ip_dev->evbit);
__set_bit(ABS_X, dd->ip_dev->absbit);
__set_bit(ABS_Y, dd->ip_dev->absbit);
__set_bit(ABS_Z, dd->ip_dev->absbit);
__set_bit(ABS_MISC, dd->ip_dev->absbit);
input_set_abs_params(dd->ip_dev, ABS_X, -4096, 4095, 0, 0);
input_set_abs_params(dd->ip_dev, ABS_Y, -4096, 4095, 0, 0);
input_set_abs_params(dd->ip_dev, ABS_Z, -4096, 4095, 0, 0);
input_set_abs_params(dd->ip_dev, ABS_MISC, -80, 175, 0, 0);
rc = input_register_device(dd->ip_dev);
if (rc) {
input_free_device(dd->ip_dev);
goto probe_err_reg;
}
rc = add_sysfs_interfaces(&dd->ip_dev->dev);
if (rc)
goto probe_err_sysfs;
return rc;
probe_err_sysfs:
input_unregister_device(dd->ip_dev);
probe_err_reg:
bma250_remove_dbfs_entry(dd);
bma250_ic_set_data(ic_dev, NULL);
probe_err_cfg:
mutex_lock(&bma250_dd_lock);
list_del(&dd->next_dd);
mutex_unlock(&bma250_dd_lock);
kfree(dd);
probe_exit:
return rc;
}
static void bma250_release(struct input_dev *dev)
{
struct driver_data *dd = input_get_drvdata(dev);
bma250_power_down(dd);
}