From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754241AbdDKIuj (ORCPT ); Tue, 11 Apr 2017 04:50:39 -0400 Received: from mx2.suse.de ([195.135.220.15]:52789 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754196AbdDKIue (ORCPT ); Tue, 11 Apr 2017 04:50:34 -0400 From: Juergen Gross To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, linux-input@vger.kernel.org Cc: boris.ostrovsky@oracle.com, dmitry.torokhov@gmail.com, andr2000@gmail.com, Juergen Gross Subject: [PATCH v2 1/2] xen,input: add xen-kbdfront module parameter for setting resolution Date: Tue, 11 Apr 2017 10:50:27 +0200 Message-Id: <20170411085028.6750-2-jgross@suse.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20170411085028.6750-1-jgross@suse.com> References: <20170411085028.6750-1-jgross@suse.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a parameter for setting the resolution of xen-kbdfront in order to be able to cope with a (virtual) frame buffer of arbitrary resolution. Signed-off-by: Juergen Gross --- drivers/input/misc/xen-kbdfront.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c index 3900875dec10..90e7981a7768 100644 --- a/drivers/input/misc/xen-kbdfront.c +++ b/drivers/input/misc/xen-kbdfront.c @@ -41,6 +41,12 @@ struct xenkbd_info { char phys[32]; }; +enum { KPARAM_WIDTH, KPARAM_HEIGHT, KPARAM_CNT }; +static int size[KPARAM_CNT] = { XENFB_WIDTH, XENFB_HEIGHT }; +module_param_array(size, int, NULL, 0444); +MODULE_PARM_DESC(size, + "Pointing device width, height in pixels (default 800,600)"); + static int xenkbd_remove(struct xenbus_device *); static int xenkbd_connect_backend(struct xenbus_device *, struct xenkbd_info *); static void xenkbd_disconnect_backend(struct xenkbd_info *); @@ -174,8 +180,8 @@ static int xenkbd_probe(struct xenbus_device *dev, if (abs) { __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, size[KPARAM_WIDTH], 0, 0); + input_set_abs_params(ptr, ABS_Y, 0, size[KPARAM_HEIGHT], 0, 0); } else { input_set_capability(ptr, EV_REL, REL_X); input_set_capability(ptr, EV_REL, REL_Y); @@ -344,12 +350,16 @@ static void xenkbd_backend_changed(struct xenbus_device *dev, /* Set input abs params to match backend screen res */ if (xenbus_scanf(XBT_NIL, info->xbdev->otherend, - "width", "%d", &val) > 0) + "width", "%d", &val) > 0) { input_set_abs_params(info->ptr, ABS_X, 0, val, 0, 0); + size[KPARAM_WIDTH] = val; + } if (xenbus_scanf(XBT_NIL, info->xbdev->otherend, - "height", "%d", &val) > 0) + "height", "%d", &val) > 0) { input_set_abs_params(info->ptr, ABS_Y, 0, val, 0, 0); + size[KPARAM_HEIGHT] = val; + } break; -- 2.12.0