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Diffstat (limited to 'drivers/input/mouse/elantech.h')
-rw-r--r--drivers/input/mouse/elantech.h57
1 files changed, 40 insertions, 17 deletions
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
index fabb2b99615..9e5f1aabea7 100644
--- a/drivers/input/mouse/elantech.h
+++ b/drivers/input/mouse/elantech.h
@@ -16,14 +16,17 @@
/*
* Command values for Synaptics style queries
*/
+#define ETP_FW_ID_QUERY 0x00
#define ETP_FW_VERSION_QUERY 0x01
#define ETP_CAPABILITIES_QUERY 0x02
+#define ETP_SAMPLE_QUERY 0x03
/*
* Command values for register reading or writing
*/
#define ETP_REGISTER_READ 0x10
#define ETP_REGISTER_WRITE 0x11
+#define ETP_REGISTER_READWRITE 0x00
/*
* Hardware version 2 custom PS/2 command value
@@ -66,16 +69,13 @@
#define ETP_YMAX_V1 (384 - ETP_EDGE_FUZZ_V1)
/*
- * It seems the resolution for hardware version 2 doubled.
- * Hence the X and Y ranges are doubled too.
- * The bezel around the pad also appears to be smaller
+ * The resolution for older v2 hardware doubled.
+ * (newer v2's firmware provides command so we can query)
*/
-#define ETP_EDGE_FUZZ_V2 8
-
-#define ETP_XMIN_V2 ( 0 + ETP_EDGE_FUZZ_V2)
-#define ETP_XMAX_V2 (1152 - ETP_EDGE_FUZZ_V2)
-#define ETP_YMIN_V2 ( 0 + ETP_EDGE_FUZZ_V2)
-#define ETP_YMAX_V2 ( 768 - ETP_EDGE_FUZZ_V2)
+#define ETP_XMIN_V2 0
+#define ETP_XMAX_V2 1152
+#define ETP_YMIN_V2 0
+#define ETP_YMAX_V2 768
#define ETP_PMIN_V2 0
#define ETP_PMAX_V2 255
@@ -83,17 +83,37 @@
#define ETP_WMAX_V2 15
/*
- * For two finger touches the coordinate of each finger gets reported
- * separately but with reduced resolution.
+ * v3 hardware has 2 kinds of packet types,
+ * v4 hardware has 3.
+ */
+#define PACKET_UNKNOWN 0x01
+#define PACKET_DEBOUNCE 0x02
+#define PACKET_V3_HEAD 0x03
+#define PACKET_V3_TAIL 0x04
+#define PACKET_V4_HEAD 0x05
+#define PACKET_V4_MOTION 0x06
+#define PACKET_V4_STATUS 0x07
+
+/*
+ * track up to 5 fingers for v4 hardware
+ */
+#define ETP_MAX_FINGERS 5
+
+/*
+ * weight value for v4 hardware
*/
-#define ETP_2FT_FUZZ 4
+#define ETP_WEIGHT_VALUE 5
-#define ETP_2FT_XMIN ( 0 + ETP_2FT_FUZZ)
-#define ETP_2FT_XMAX (288 - ETP_2FT_FUZZ)
-#define ETP_2FT_YMIN ( 0 + ETP_2FT_FUZZ)
-#define ETP_2FT_YMAX (192 - ETP_2FT_FUZZ)
+/*
+ * The base position for one finger, v4 hardware
+ */
+struct finger_pos {
+ unsigned int x;
+ unsigned int y;
+};
struct elantech_data {
+ unsigned char reg_07;
unsigned char reg_10;
unsigned char reg_11;
unsigned char reg_20;
@@ -104,13 +124,16 @@ struct elantech_data {
unsigned char reg_25;
unsigned char reg_26;
unsigned char debug;
- unsigned char capabilities;
+ unsigned char capabilities[3];
bool paritycheck;
bool jumpy_cursor;
bool reports_pressure;
unsigned char hw_version;
unsigned int fw_version;
unsigned int single_finger_reports;
+ unsigned int y_max;
+ unsigned int width;
+ struct finger_pos mt[ETP_MAX_FINGERS];
unsigned char parity[256];
};