renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 21:54:06 +08:00
Code

Input: psmouse - implement fast reconnect option

Browse Source 
Make use of serio's fast reconnect option and allow psmouse protocol
handler's to implement fast reconnect handlers that will be called during
system resume.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2017-03-05 23:19:22 -08:00
parent 5ea1320653
commit 0ab3fa5742
2 changed files with 28 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/input/mouse/psmouse-base.c
View File

@ -966,6 +966,7 @@ static void psmouse_apply_defaults(struct psmouse *psmouse)
psmouse->protocol_handler = psmouse_process_byte;
psmouse->pktsize = 3;
psmouse->reconnect = NULL;
psmouse->fast_reconnect = NULL;
psmouse->disconnect = NULL;
psmouse->cleanup = NULL;
psmouse->pt_activate = NULL;
@ -1628,15 +1629,26 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
goto out;
}
static int psmouse_reconnect(struct serio *serio)
static int __psmouse_reconnect(struct serio *serio, bool fast_reconnect)
{
struct psmouse *psmouse = serio_get_drvdata(serio);
struct psmouse *parent = NULL;
int (*reconnect_handler)(struct psmouse *);
unsigned char type;
int rc = -1;
mutex_lock(&psmouse_mutex);
if (fast_reconnect) {
reconnect_handler = psmouse->fast_reconnect;
if (!reconnect_handler) {
rc = -ENOENT;
goto out_unlock;
}
} else {
reconnect_handler = psmouse->reconnect;
}
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
parent = serio_get_drvdata(serio->parent);
psmouse_deactivate(parent);
@ -1644,8 +1656,8 @@ static int psmouse_reconnect(struct serio *serio)
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
if (psmouse->reconnect) {
if (psmouse->reconnect(psmouse))
if (reconnect_handler) {
if (reconnect_handler(psmouse))
goto out;
} else {
psmouse_reset(psmouse);
@ -1677,10 +1689,21 @@ out:
if (parent)
psmouse_activate(parent);
out_unlock:
mutex_unlock(&psmouse_mutex);
return rc;
}
static int psmouse_reconnect(struct serio *serio)
{
return __psmouse_reconnect(serio, false);
}
static int psmouse_fast_reconnect(struct serio *serio)
{
return __psmouse_reconnect(serio, true);
}
static struct serio_device_id psmouse_serio_ids[] = {
{
.type = SERIO_8042,
@ -1708,6 +1731,7 @@ static struct serio_driver psmouse_drv = {
.interrupt = psmouse_interrupt,
.connect = psmouse_connect,
.reconnect = psmouse_reconnect,
.fast_reconnect = psmouse_fast_reconnect,
.disconnect = psmouse_disconnect,
.cleanup = psmouse_cleanup,
};

1
drivers/input/mouse/psmouse.h
View File

@ -80,6 +80,7 @@ struct psmouse {
void (*set_scale)(struct psmouse *psmouse, enum psmouse_scale scale);
int (*reconnect)(struct psmouse *psmouse);
int (*fast_reconnect)(struct psmouse *psmouse);
void (*disconnect)(struct psmouse *psmouse);
void (*cleanup)(struct psmouse *psmouse);
int (*poll)(struct psmouse *psmouse);