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path: root/drivers/input/mouse/psmouse-base.c
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Diffstat (limited to 'drivers/input/mouse/psmouse-base.c')
-rw-r--r--drivers/input/mouse/psmouse-base.c34
1 files changed, 21 insertions, 13 deletions
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 6a5649e52eed..8ac9e03c05b4 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -975,6 +975,21 @@ static void psmouse_apply_defaults(struct psmouse *psmouse)
psmouse->pt_deactivate = NULL;
}
+static bool psmouse_do_detect(int (*detect)(struct psmouse *, bool),
+ struct psmouse *psmouse, bool allow_passthrough,
+ bool set_properties)
+{
+ if (psmouse->ps2dev.serio->id.type == SERIO_PS_PSTHRU &&
+ !allow_passthrough) {
+ return false;
+ }
+
+ if (set_properties)
+ psmouse_apply_defaults(psmouse);
+
+ return detect(psmouse, set_properties) == 0;
+}
+
static bool psmouse_try_protocol(struct psmouse *psmouse,
enum psmouse_type type,
unsigned int *max_proto,
@@ -986,15 +1001,8 @@ static bool psmouse_try_protocol(struct psmouse *psmouse,
if (!proto)
return false;
- if (psmouse->ps2dev.serio->id.type == SERIO_PS_PSTHRU &&
- !proto->try_passthru) {
- return false;
- }
-
- if (set_properties)
- psmouse_apply_defaults(psmouse);
-
- if (proto->detect(psmouse, set_properties) != 0)
+ if (!psmouse_do_detect(proto->detect, psmouse, proto->try_passthru,
+ set_properties))
return false;
if (set_properties && proto->init && init_allowed) {
@@ -1027,8 +1035,8 @@ static int psmouse_extensions(struct psmouse *psmouse,
* Always check for focaltech, this is safe as it uses pnp-id
* matching.
*/
- if (psmouse_try_protocol(psmouse, PSMOUSE_FOCALTECH,
- &max_proto, set_properties, false)) {
+ if (psmouse_do_detect(focaltech_detect,
+ psmouse, false, set_properties)) {
if (max_proto > PSMOUSE_IMEX &&
IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH) &&
(!set_properties || focaltech_init(psmouse) == 0)) {
@@ -1074,8 +1082,8 @@ static int psmouse_extensions(struct psmouse *psmouse,
* probing for IntelliMouse.
*/
if (max_proto > PSMOUSE_PS2 &&
- psmouse_try_protocol(psmouse, PSMOUSE_SYNAPTICS, &max_proto,
- set_properties, false)) {
+ psmouse_do_detect(synaptics_detect,
+ psmouse, false, set_properties)) {
synaptics_hardware = true;
if (max_proto > PSMOUSE_IMEX) {