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); }