Input: ALPS - add support for protocol versions 3 and 4

#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);

#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