diff options
Diffstat (limited to 'drivers/input/touchscreen/of_touchscreen.c')
| -rw-r--r-- | drivers/input/touchscreen/of_touchscreen.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c index 9642f103b726..6d241d45e312 100644 --- a/drivers/input/touchscreen/of_touchscreen.c +++ b/drivers/input/touchscreen/of_touchscreen.c @@ -35,7 +35,7 @@ static bool touchscreen_get_prop_u32(struct device *dev, static void touchscreen_set_params(struct input_dev *dev, unsigned long axis, - int max, int fuzz) + int min, int max, int fuzz) { struct input_absinfo *absinfo; @@ -47,6 +47,7 @@ static void touchscreen_set_params(struct input_dev *dev, } absinfo = &dev->absinfo[axis]; + absinfo->minimum = min; absinfo->maximum = max; absinfo->fuzz = fuzz; } @@ -68,8 +69,9 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, struct touchscreen_properties *prop) { struct device *dev = input->dev.parent; + struct input_absinfo *absinfo; unsigned int axis; - unsigned int maximum, fuzz; + unsigned int minimum, maximum, fuzz; bool data_present; input_alloc_absinfo(input); @@ -77,7 +79,10 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, return; axis = multitouch ? ABS_MT_POSITION_X : ABS_X; - data_present = touchscreen_get_prop_u32(dev, "touchscreen-size-x", + data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-x", + input_abs_get_min(input, axis), + &minimum) | + touchscreen_get_prop_u32(dev, "touchscreen-size-x", input_abs_get_max(input, axis) + 1, &maximum) | @@ -85,10 +90,13 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, input_abs_get_fuzz(input, axis), &fuzz); if (data_present) - touchscreen_set_params(input, axis, maximum - 1, fuzz); + touchscreen_set_params(input, axis, minimum, maximum - 1, fuzz); axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y; - data_present = touchscreen_get_prop_u32(dev, "touchscreen-size-y", + data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-y", + input_abs_get_min(input, axis), + &minimum) | + touchscreen_get_prop_u32(dev, "touchscreen-size-y", input_abs_get_max(input, axis) + 1, &maximum) | @@ -96,7 +104,7 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, input_abs_get_fuzz(input, axis), &fuzz); if (data_present) - touchscreen_set_params(input, axis, maximum - 1, fuzz); + touchscreen_set_params(input, axis, minimum, maximum - 1, fuzz); axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE; data_present = touchscreen_get_prop_u32(dev, @@ -108,7 +116,7 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, input_abs_get_fuzz(input, axis), &fuzz); if (data_present) - touchscreen_set_params(input, axis, maximum, fuzz); + touchscreen_set_params(input, axis, 0, maximum, fuzz); if (!prop) return; @@ -117,13 +125,25 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch, prop->max_x = input_abs_get_max(input, axis); prop->max_y = input_abs_get_max(input, axis + 1); + prop->invert_x = device_property_read_bool(dev, "touchscreen-inverted-x"); + if (prop->invert_x) { + absinfo = &input->absinfo[axis]; + absinfo->maximum -= absinfo->minimum; + absinfo->minimum = 0; + } + prop->invert_y = device_property_read_bool(dev, "touchscreen-inverted-y"); + if (prop->invert_y) { + absinfo = &input->absinfo[axis + 1]; + absinfo->maximum -= absinfo->minimum; + absinfo->minimum = 0; + } + prop->swap_x_y = device_property_read_bool(dev, "touchscreen-swapped-x-y"); - if (prop->swap_x_y) swap(input->absinfo[axis], input->absinfo[axis + 1]); } |