Instead of using the default resolution of 800*600 for the pointing
device of xen-kbdfront try to read the resolution of the (virtual)
framebuffer device. Use the default as fallback only.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
drivers/input/misc/xen-kbdfront.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index 3900875..0032c81 100644
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/module.h>
+#include <linux/fb.h>
#include <linux/input.h>
#include <linux/slab.h>
@@ -108,10 +109,11 @@ static irqreturn_t input_handler(int rq, void *dev_id)
static int xenkbd_probe(struct xenbus_device *dev,
const struct xenbus_device_id *id)
{
- int ret, i;
+ int ret, i, width, height;
unsigned int abs;
struct xenkbd_info *info;
struct input_dev *kbd, *ptr;
+ struct fb_info *fb0;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info) {
@@ -173,9 +175,16 @@ static int xenkbd_probe(struct xenbus_device *dev,
ptr->id.product = 0xfffe;
if (abs) {
+ width = XENFB_WIDTH;
+ height = XENFB_HEIGHT;
+ fb0 = registered_fb[0];
+ if (fb0) {
+ width = fb0->var.xres_virtual;
+ height = fb0->var.yres_virtual;
+ }
__set_bit(EV_ABS, ptr->evbit);
- input_set_abs_params(ptr, ABS_X, 0, XENFB_WIDTH, 0, 0);
- input_set_abs_params(ptr, ABS_Y, 0, XENFB_HEIGHT, 0, 0);
+ input_set_abs_params(ptr, ABS_X, 0, width, 0, 0);
+ input_set_abs_params(ptr, ABS_Y, 0, height, 0, 0);
} else {
input_set_capability(ptr, EV_REL, REL_X);
input_set_capability(ptr, EV_REL, REL_Y);
--
2.10.2
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