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: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index 4ce9bba..62db7f4 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -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);
