diff options
| author |   Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> | 2017-05-28 23:52:23 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-06-09 09:56:06 -0700 |
| commit | ad2ee015245dfe22743a25d7245b3d6abd33c02e (patch) | |
| tree | 597768b37d34a86be081fca82f6097a67275d8a2 /drivers/input/misc | |
| parent | Input: stmfts - mark all PM functions as __maybe_unused (diff) | |
| download | linux-dev-ad2ee015245dfe22743a25d7245b3d6abd33c02e.tar.xz linux-dev-ad2ee015245dfe22743a25d7245b3d6abd33c02e.zip | |
Input: xen-kbdfront - use string constants from PV protocol
Xen input para-virtual protocol defines string constants
used by both back and frontend. Use those instead of
explicit strings in the frontend driver.
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/misc')
| -rw-r--r-- | drivers/input/misc/xen-kbdfront.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c index 690148f9940e..eb770613a9bd 100644 --- a/drivers/input/misc/xen-kbdfront.c +++ b/drivers/input/misc/xen-kbdfront.c @@ -135,14 +135,17 @@ static int xenkbd_probe(struct xenbus_device *dev, goto error_nomem; /* Set input abs params to match backend screen res */ - abs = xenbus_read_unsigned(dev->otherend, "feature-abs-pointer", 0); - ptr_size[KPARAM_X] = xenbus_read_unsigned(dev->otherend, "width", + abs = xenbus_read_unsigned(dev->otherend, + XENKBD_FIELD_FEAT_ABS_POINTER, 0); + ptr_size[KPARAM_X] = xenbus_read_unsigned(dev->otherend, + XENKBD_FIELD_WIDTH, ptr_size[KPARAM_X]); - ptr_size[KPARAM_Y] = xenbus_read_unsigned(dev->otherend, "height", + ptr_size[KPARAM_Y] = xenbus_read_unsigned(dev->otherend, + XENKBD_FIELD_HEIGHT, ptr_size[KPARAM_Y]); if (abs) { ret = xenbus_write(XBT_NIL, dev->nodename, - "request-abs-pointer", "1"); + XENKBD_FIELD_REQ_ABS_POINTER, "1"); if (ret) { pr_warn("xenkbd: can't request abs-pointer\n"); abs = 0; @@ -271,14 +274,15 @@ static int xenkbd_connect_backend(struct xenbus_device *dev, xenbus_dev_fatal(dev, ret, "starting transaction"); goto error_irqh; } - ret = xenbus_printf(xbt, dev->nodename, "page-ref", "%lu", + ret = xenbus_printf(xbt, dev->nodename, XENKBD_FIELD_RING_REF, "%lu", virt_to_gfn(info->page)); if (ret) goto error_xenbus; - ret = xenbus_printf(xbt, dev->nodename, "page-gref", "%u", info->gref); + ret = xenbus_printf(xbt, dev->nodename, XENKBD_FIELD_RING_GREF, + "%u", info->gref); if (ret) goto error_xenbus; - ret = xenbus_printf(xbt, dev->nodename, "event-channel", "%u", + ret = xenbus_printf(xbt, dev->nodename, XENKBD_FIELD_EVT_CHANNEL, "%u", evtchn); if (ret) goto error_xenbus; @@ -353,7 +357,7 @@ static void xenkbd_backend_changed(struct xenbus_device *dev, } static const struct xenbus_device_id xenkbd_ids[] = { - { "vkbd" }, + { XENKBD_DRIVER_NAME }, { "" } }; @@ -390,4 +394,4 @@ module_exit(xenkbd_cleanup); MODULE_DESCRIPTION("Xen virtual keyboard/pointer device frontend"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("xen:vkbd"); +MODULE_ALIAS("xen:" XENKBD_DRIVER_NAME); |