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This is based on the out of tree rM2 driver. Signed-off-by: Alistair Francis --- drivers/input/touchscreen/wacom_i2c.c | 30 +++++++++++++++++++++++++-- 1 file changed, 28 insertions(+), 2 deletions(-) diff --git a/drivers/input/touchscreen/wacom_i2c.c b/drivers/input/touchscreen/wacom_i2c.c index 72ba4a36459b..d6036406a9f3 100644 --- a/drivers/input/touchscreen/wacom_i2c.c +++ b/drivers/input/touchscreen/wacom_i2c.c @@ -23,7 +23,7 @@ #define WACOM_CMD_QUERY3 0x02 #define WACOM_CMD_THROW0 0x05 #define WACOM_CMD_THROW1 0x00 -#define WACOM_QUERY_SIZE 19 +#define WACOM_QUERY_SIZE 22 #define WACOM_MAX_DATA_SIZE_BG9 10 #define WACOM_MAX_DATA_SIZE_G12 15 @@ -63,6 +63,9 @@ struct wacom_features { int x_max; int y_max; int pressure_max; + int distance_max; + int tilt_x_max; + int tilt_y_max; char fw_version; unsigned char generation; }; @@ -144,6 +147,15 @@ static int wacom_query_device(struct i2c_client *client, features->y_max = get_unaligned_le16(&data[5]); features->pressure_max = get_unaligned_le16(&data[11]); features->fw_version = get_unaligned_le16(&data[13]); + if (features->generation) { + features->distance_max = data[16]; + features->tilt_x_max = get_unaligned_le16(&data[17]); + features->tilt_y_max = get_unaligned_le16(&data[19]); + } else { + features->distance_max = -1; + features->tilt_x_max = -1; + features->tilt_y_max = -1; + } dev_dbg(&client->dev, "x_max:%d, y_max:%d, pressure:%d, fw:%d\n", @@ -161,6 +173,7 @@ static irqreturn_t wacom_i2c_irq(int irq, void *dev_id) u8 *data = wac_i2c->data; unsigned int x, y, pressure; unsigned char tsw, f1, f2, ers; + short tilt_x, tilt_y, distance; int error; error = i2c_master_recv(wac_i2c->client, @@ -176,6 +189,12 @@ static irqreturn_t wacom_i2c_irq(int irq, void *dev_id) y = le16_to_cpup((__le16 *)&data[6]); pressure = le16_to_cpup((__le16 *)&data[8]); + /* Signed */ + tilt_x = get_unaligned_le16(&data[11]); + tilt_y = get_unaligned_le16(&data[13]); + + distance = get_unaligned_le16(&data[15]); + if (!wac_i2c->prox) wac_i2c->tool = (data[3] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN; @@ -191,6 +210,9 @@ static irqreturn_t wacom_i2c_irq(int irq, void *dev_id) input_report_abs(input, ABS_X, x); input_report_abs(input, ABS_Y, y); input_report_abs(input, ABS_PRESSURE, pressure); + input_report_abs(input, ABS_DISTANCE, distance); + input_report_abs(input, ABS_TILT_X, tilt_x); + input_report_abs(input, ABS_TILT_Y, tilt_y); input_sync(input); out: @@ -266,7 +288,11 @@ static int wacom_i2c_probe(struct i2c_client *client, input_set_abs_params(input, ABS_Y, 0, features->y_max, 0, 0); input_set_abs_params(input, ABS_PRESSURE, 0, features->pressure_max, 0, 0); - + input_set_abs_params(input, ABS_DISTANCE, 0, features->distance_max, 0, 0); + input_set_abs_params(input, ABS_TILT_X, -features->tilt_x_max, + features->tilt_x_max, 0, 0); + input_set_abs_params(input, ABS_TILT_Y, -features->tilt_y_max, + features->tilt_y_max, 0, 0); input_set_drvdata(input, wac_i2c); error = devm_request_threaded_irq(dev, client->irq, NULL, wacom_i2c_irq, -- 2.31.1