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Commit 25bded7c authored by Seth Forshee's avatar Seth Forshee Committed by Dmitry Torokhov
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Input: ALPS - add support for protocol versions 3 and 4 



This patch adds support for two ALPS touchpad protocols not
supported currently by the driver, which I am arbitrarily naming
version 3 and version 4. Support is single-touch only at this time,
although both protocols are capable of limited multitouch support.

Thanks to Andrew Skalski, who did the initial reverse-engineering
of the v3 protocol.

Signed-off-by: default avatarSeth Forshee <seth.forshee@canonical.com>
Acked-by: default avatarChase Douglas <chase.douglas@canonical.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent b46615fe

drivers/input/mouse/alps.c

+753 −38

File changed.

Preview size limit exceeded, changes collapsed.

drivers/input/mouse/alps.h

+14 −0
Original line number Diff line number Diff line
@@ -14,22 +14,36 @@ 


#define ALPS_PROTO_V1	0

#define ALPS_PROTO_V2	1

#define ALPS_PROTO_V3	2

#define ALPS_PROTO_V4	3



struct alps_model_info {

        unsigned char signature[3];

	unsigned char command_mode_resp; /* v3/v4 only */

	unsigned char proto_version;

        unsigned char byte0, mask0;

        unsigned char flags;

};



struct alps_nibble_commands {

	int command;

	unsigned char data;

};



struct alps_data {

	struct input_dev *dev2;		/* Relative device */

	char phys[32];			/* Phys */

	const struct alps_model_info *i;/* Info */

	const struct alps_nibble_commands *nibble_commands;

	int addr_command;		/* Command to set register address */

	int prev_fin;			/* Finger bit from previous packet */

	int multi_packet;		/* Multi-packet data in progress */

	u8 quirks;

	struct timer_list timer;

};



#define ALPS_QUIRK_TRACKSTICK_BUTTONS	1 /* trakcstick buttons in trackstick packet */



#ifdef CONFIG_MOUSE_PS2_ALPS

int alps_detect(struct psmouse *psmouse, bool set_properties);

int alps_init(struct psmouse *psmouse);

drivers/input/mouse/psmouse.h

+1 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#define PSMOUSE_CMD_SETSTREAM	0x00ea

#define PSMOUSE_CMD_SETPOLL	0x00f0

#define PSMOUSE_CMD_POLL	0x00eb	/* caller sets number of bytes to receive */

#define PSMOUSE_CMD_RESET_WRAP	0x00ec

#define PSMOUSE_CMD_GETID	0x02f2

#define PSMOUSE_CMD_SETRATE	0x10f3

#define PSMOUSE_CMD_ENABLE	0x00f4