diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index 2c41107240dec2..cfdfb9f2e9525d 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -64,6 +64,14 @@ static bool swap_xy; module_param(swap_xy, bool, 0644); MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped."); +static bool invert_x; +module_param(invert_x, bool, 0644); +MODULE_PARM_DESC(invert_x, "Invert X axis."); + +static bool invert_y; +module_param(invert_y, bool, 0644); +MODULE_PARM_DESC(invert_y, "Invert Y axis."); + static bool hwcalib_xy; module_param(hwcalib_xy, bool, 0644); MODULE_PARM_DESC(hwcalib_xy, "If set hw-calibrated X/Y are used if available"); @@ -1306,6 +1314,7 @@ static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch, unsigned char *pkt, int len) { struct usbtouch_device_info *type = usbtouch->type; + int x, y; if (!type->read_data(usbtouch, pkt)) return; @@ -1313,12 +1322,20 @@ static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch, input_report_key(usbtouch->input, BTN_TOUCH, usbtouch->touch); if (swap_xy) { - input_report_abs(usbtouch->input, ABS_X, usbtouch->y); - input_report_abs(usbtouch->input, ABS_Y, usbtouch->x); + x = usbtouch->y; + y = usbtouch->x; } else { - input_report_abs(usbtouch->input, ABS_X, usbtouch->x); - input_report_abs(usbtouch->input, ABS_Y, usbtouch->y); + x = usbtouch->x; + y = usbtouch->y; } + if (invert_x) + x = type->max_xc - x + type->min_xc; + if (invert_y) + y = type->max_yc - y + type->min_yc; + + input_report_abs(usbtouch->input, ABS_X, x); + input_report_abs(usbtouch->input, ABS_Y, y); + if (type->max_press) input_report_abs(usbtouch->input, ABS_PRESSURE, usbtouch->press); input_sync(usbtouch->input);