diff options
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-ntrig.c | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c index 227d015..2c08365 100644 --- a/drivers/hid/hid-ntrig.c +++ b/drivers/hid/hid-ntrig.c @@ -68,6 +68,287 @@ struct ntrig_data { __u16 sensor_physical_height; }; + +static ssize_t show_phys_width(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->sensor_physical_width); +} + +static DEVICE_ATTR(sensor_physical_width, S_IRUGO, show_phys_width, NULL); + +static ssize_t show_phys_height(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->sensor_physical_height); +} + +static DEVICE_ATTR(sensor_physical_height, S_IRUGO, show_phys_height, NULL); + +static ssize_t show_log_width(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->sensor_logical_width); +} + +static DEVICE_ATTR(sensor_logical_width, S_IRUGO, show_log_width, NULL); + +static ssize_t show_log_height(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->sensor_logical_height); +} + +static DEVICE_ATTR(sensor_logical_height, S_IRUGO, show_log_height, NULL); + +static ssize_t show_min_width(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->min_width * + nd->sensor_physical_width / + nd->sensor_logical_width); +} + +static ssize_t set_min_width(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + unsigned long val; + + if (strict_strtoul(buf, 0, &val)) + return -EINVAL; + + if (val > nd->sensor_physical_width) + return -EINVAL; + + nd->min_width = val * nd->sensor_logical_width / + nd->sensor_physical_width; + + return count; +} + +static DEVICE_ATTR(min_width, S_IWUSR | S_IRUGO, show_min_width, set_min_width); + +static ssize_t show_min_height(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->min_height * + nd->sensor_physical_height / + nd->sensor_logical_height); +} + +static ssize_t set_min_height(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + unsigned long val; + + if (strict_strtoul(buf, 0, &val)) + return -EINVAL; + + if (val > nd->sensor_physical_height) + return -EINVAL; + + nd->min_height = val * nd->sensor_logical_height / + nd->sensor_physical_height; + + return count; +} + +static DEVICE_ATTR(min_height, S_IWUSR | S_IRUGO, show_min_height, + set_min_height); + +static ssize_t show_activate_slack(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->activate_slack); +} + +static ssize_t set_activate_slack(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + unsigned long val; + + if (strict_strtoul(buf, 0, &val)) + return -EINVAL; + + if (val > 0x7f) + return -EINVAL; + + nd->activate_slack = val; + + return count; +} + +static DEVICE_ATTR(activate_slack, S_IWUSR | S_IRUGO, show_activate_slack, + set_activate_slack); + +static ssize_t show_activation_width(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->activation_width * + nd->sensor_physical_width / + nd->sensor_logical_width); +} + +static ssize_t set_activation_width(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + unsigned long val; + + if (strict_strtoul(buf, 0, &val)) + return -EINVAL; + + if (val > nd->sensor_physical_width) + return -EINVAL; + + nd->activation_width = val * nd->sensor_logical_width / + nd->sensor_physical_width; + + return count; +} + +static DEVICE_ATTR(activation_width, S_IWUSR | S_IRUGO, show_activation_width, + set_activation_width); + +static ssize_t show_activation_height(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", nd->activation_height * + nd->sensor_physical_height / + nd->sensor_logical_height); +} + +static ssize_t set_activation_height(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + unsigned long val; + + if (strict_strtoul(buf, 0, &val)) + return -EINVAL; + + if (val > nd->sensor_physical_height) + return -EINVAL; + + nd->activation_height = val * nd->sensor_logical_height / + nd->sensor_physical_height; + + return count; +} + +static DEVICE_ATTR(activation_height, S_IWUSR | S_IRUGO, + show_activation_height, set_activation_height); + +static ssize_t show_deactivate_slack(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + return sprintf(buf, "%d\n", -nd->deactivate_slack); +} + +static ssize_t set_deactivate_slack(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct ntrig_data *nd = hid_get_drvdata(hdev); + + unsigned long val; + + if (strict_strtoul(buf, 0, &val)) + return -EINVAL; + + /* + * No more than 8 terminal frames have been observed so far + * and higher slack is highly likely to leave the single + * touch emulation stuck down. + */ + if (val > 7) + return -EINVAL; + + nd->deactivate_slack = -val; + + return count; +} + +static DEVICE_ATTR(deactivate_slack, S_IWUSR | S_IRUGO, show_deactivate_slack, + set_deactivate_slack); + +static struct attribute *sysfs_attrs[] = { + &dev_attr_sensor_physical_width.attr, + &dev_attr_sensor_physical_height.attr, + &dev_attr_sensor_logical_width.attr, + &dev_attr_sensor_logical_height.attr, + &dev_attr_min_height.attr, + &dev_attr_min_width.attr, + &dev_attr_activate_slack.attr, + &dev_attr_activation_width.attr, + &dev_attr_activation_height.attr, + &dev_attr_deactivate_slack.attr, + NULL +}; + +static struct attribute_group ntrig_attribute_group = { + .attrs = sysfs_attrs +}; + /* * this driver is aimed at two firmware versions in circulation: * - dual pen/finger single touch @@ -546,6 +827,8 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id) if (report) usbhid_submit_report(hdev, report, USB_DIR_OUT); + ret = sysfs_create_group(&hdev->dev.kobj, + &ntrig_attribute_group); return 0; err_free: @@ -555,6 +838,8 @@ err_free: static void ntrig_remove(struct hid_device *hdev) { + sysfs_remove_group(&hdev->dev.kobj, + &ntrig_attribute_group); hid_hw_stop(hdev); kfree(hid_get_drvdata(hdev)); } |
