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-rw-r--r--drivers/hid/hid-elan.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index d0971f5e5523..1a012d2b9fa1 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -23,16 +23,16 @@
#define ELAN_MT_FIRST_FINGER 0x82
#define ELAN_MT_SECOND_FINGER 0x83
#define ELAN_INPUT_REPORT_SIZE 8
+#define ELAN_MAX_FINGERS 5
#define ELAN_MAX_PRESSURE 255
+#define ELAN_TP_USB_INTF 1
#define ELAN_MUTE_LED_REPORT 0xBC
#define ELAN_LED_REPORT_SIZE 8
struct elan_touchpad_settings {
- u8 max_fingers;
u16 max_x;
u16 max_y;
- int usb_bInterfaceNumber;
};
struct elan_drvdata {
@@ -46,9 +46,8 @@ struct elan_drvdata {
static int is_not_elan_touchpad(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
- struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
- return (intf->altsetting->desc.bInterfaceNumber != drvdata->settings->usb_bInterfaceNumber);
+ return (intf->altsetting->desc.bInterfaceNumber != ELAN_TP_USB_INTF);
}
static int elan_input_mapping(struct hid_device *hdev, struct hid_input *hi,
@@ -98,8 +97,7 @@ static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi)
__set_bit(BTN_LEFT, input->keybit);
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
- ret = input_mt_init_slots(input, drvdata->settings->max_fingers,
- INPUT_MT_POINTER);
+ ret = input_mt_init_slots(input, ELAN_MAX_FINGERS, INPUT_MT_POINTER);
if (ret) {
hid_err(hdev, "Failed to init elan MT slots: %d\n", ret);
return ret;
@@ -181,7 +179,7 @@ static void elan_report_input(struct elan_drvdata *drvdata, u8 *data)
*/
if (data[0] == ELAN_SINGLE_FINGER) {
- for (i = 0; i < drvdata->settings->max_fingers; i++) {
+ for (i = 0; i < ELAN_MAX_FINGERS; i++) {
if (data[2] & BIT(i + 3))
elan_report_mt_slot(drvdata, data + 3, i);
else
@@ -208,7 +206,7 @@ static void elan_report_input(struct elan_drvdata *drvdata, u8 *data)
if (prev_report[0] != ELAN_MT_FIRST_FINGER)
return;
- for (i = 0; i < drvdata->settings->max_fingers; i++) {
+ for (i = 0; i < ELAN_MAX_FINGERS; i++) {
if (prev_report[2] & BIT(i + 3)) {
if (!first) {
first = 1;
@@ -385,10 +383,8 @@ static void elan_remove(struct hid_device *hdev)
}
static const struct elan_touchpad_settings hp_x2_10_touchpad_data = {
- .max_fingers = 5,
.max_x = 2930,
.max_y = 1250,
- .usb_bInterfaceNumber = 1,
};
static const struct hid_device_id elan_devices[] = {