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Input: psmouse - disable changing resolution/rate/scale for FocalTech

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These PS/2 commands make some touchpads stop responding, so this commit
adds some dummy functions to replace the generic implementation. Because
scale changes were not encapsulated in a method of struct psmouse yet, this
commit adds a method set_scale to psmouse.

Signed-off-by: Mathias Gottschlag <mgottschlag@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Mathias Gottschlag 2015-03-07 13:32:10 -08:00 committed by Dmitry Torokhov
parent 679d83ea93
commit 4ec212f003
3 changed files with 44 additions and 1 deletions
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25
drivers/input/mouse/focaltech.c
View File

@ -386,6 +386,23 @@ static int focaltech_read_size(struct psmouse *psmouse)
return 0;
}
void focaltech_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
/* not supported yet */
}
static void focaltech_set_rate(struct psmouse *psmouse, unsigned int rate)
{
/* not supported yet */
}
static void focaltech_set_scale(struct psmouse *psmouse,
enum psmouse_scale scale)
{
/* not supported yet */
}
int focaltech_init(struct psmouse *psmouse)
{
struct focaltech_data *priv;
@ -420,6 +437,14 @@ int focaltech_init(struct psmouse *psmouse)
psmouse->cleanup = focaltech_reset;
/* resync is not supported yet */
psmouse->resync_time = 0;
/*
* rate/resolution/scale changes are not supported yet, and
* the generic implementations of these functions seem to
* confuse some touchpads
*/
psmouse->set_resolution = focaltech_set_resolution;
psmouse->set_rate = focaltech_set_rate;
psmouse->set_scale = focaltech_set_scale;
return 0;

14
drivers/input/mouse/psmouse-base.c
View File

@ -453,6 +453,17 @@ static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
psmouse->rate = r;
}
/*
* Here we set the mouse scaling.
*/
static void psmouse_set_scale(struct psmouse *psmouse, enum psmouse_scale scale)
{
ps2_command(&psmouse->ps2dev, NULL,
scale == PSMOUSE_SCALE21 ? PSMOUSE_CMD_SETSCALE21 :
PSMOUSE_CMD_SETSCALE11);
}
/*
* psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
*/
@ -689,6 +700,7 @@ static void psmouse_apply_defaults(struct psmouse *psmouse)
psmouse->set_rate = psmouse_set_rate;
psmouse->set_resolution = psmouse_set_resolution;
psmouse->set_scale = psmouse_set_scale;
psmouse->poll = psmouse_poll;
psmouse->protocol_handler = psmouse_process_byte;
psmouse->pktsize = 3;
@ -1160,7 +1172,7 @@ static void psmouse_initialize(struct psmouse *psmouse)
if (psmouse_max_proto != PSMOUSE_PS2) {
psmouse->set_rate(psmouse, psmouse->rate);
psmouse->set_resolution(psmouse, psmouse->resolution);
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
psmouse->set_scale(psmouse, PSMOUSE_SCALE11);
}
}

6
drivers/input/mouse/psmouse.h
View File

@ -36,6 +36,11 @@ typedef enum {
PSMOUSE_FULL_PACKET
} psmouse_ret_t;
enum psmouse_scale {
PSMOUSE_SCALE11,
PSMOUSE_SCALE21
};
struct psmouse {
void *private;
struct input_dev *dev;
@ -67,6 +72,7 @@ struct psmouse {
psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
void (*set_scale)(struct psmouse *psmouse, enum psmouse_scale scale);
int (*reconnect)(struct psmouse *psmouse);
void (*disconnect)(struct psmouse *psmouse);