Re: [PATCH] Input: synaptics-rmi4 - fix compiler warnings in F11
From: Christopher Heiny
Date: Wed Jul 23 2014 - 21:52:13 EST
On 07/22/2014 11:11 PM, Dmitry Torokhov wrote:
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
I've reviewed this, and can say:
Acked-by: Christopher Heiny <cheiny@xxxxxxxxxxxxx>
but I haven't had a chance to apply it to my build tree.
Andrew - I'll be OOO for a couple of days. Can you do that, and add a
Tested-by: or rev the patch, as appropriate?
Thanks,
Chris
---
drivers/input/rmi4/rmi_f11.c | 135 +++++++++++++++++++++++--------------------
1 file changed, 71 insertions(+), 64 deletions(-)
diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c
index b739d31..7af4f68 100644
--- a/drivers/input/rmi4/rmi_f11.c
+++ b/drivers/input/rmi4/rmi_f11.c
@@ -553,7 +553,7 @@ struct f11_data {
unsigned long *result_bits;
};
-enum finger_state_values {
+enum f11_finger_state {
F11_NO_FINGER = 0x00,
F11_PRESENT = 0x01,
F11_INACCURATE = 0x02,
@@ -563,12 +563,14 @@ enum finger_state_values {
/** F11_INACCURATE state is overloaded to indicate pen present. */
#define F11_PEN F11_INACCURATE
-static int get_tool_type(struct f11_2d_sensor *sensor, u8 finger_state)
+static int rmi_f11_get_tool_type(struct f11_2d_sensor *sensor,
+ enum f11_finger_state finger_state)
{
if (IS_ENABLED(CONFIG_RMI4_F11_PEN) &&
sensor->sens_query.has_pen &&
finger_state == F11_PEN)
return MT_TOOL_PEN;
+
return MT_TOOL_FINGER;
}
@@ -603,36 +605,32 @@ static void rmi_f11_rel_pos_report(struct f11_2d_sensor *sensor, u8 n_finger)
static void rmi_f11_abs_pos_report(struct f11_data *f11,
struct f11_2d_sensor *sensor,
- u8 finger_state, u8 n_finger)
+ enum f11_finger_state finger_state,
+ u8 n_finger)
{
struct f11_2d_data *data = &sensor->data;
+ struct input_dev *input = sensor->input;
struct rmi_f11_2d_axis_alignment *axis_align = &sensor->axis_align;
+ u8 *pos_data = &data->abs_pos[n_finger * RMI_F11_ABS_BYTES];
u16 x, y, z;
int w_x, w_y, w_max, w_min, orient;
- int temp;
- u8 abs_base = n_finger * RMI_F11_ABS_BYTES;
+ int tool_type = rmi_f11_get_tool_type(sensor, finger_state);
+
+ if (sensor->type_a) {
+ input_report_abs(input, ABS_MT_TRACKING_ID, n_finger);
+ input_report_abs(input, ABS_MT_TOOL_TYPE, tool_type);
+ } else {
+ input_mt_slot(input, n_finger);
+ input_mt_report_slot_state(input, tool_type,
+ finger_state != F11_NO_FINGER);
+ }
if (finger_state) {
- x = (data->abs_pos[abs_base] << 4) |
- (data->abs_pos[abs_base + 2] & 0x0F);
- y = (data->abs_pos[abs_base + 1] << 4) |
- (data->abs_pos[abs_base + 2] >> 4);
- w_x = data->abs_pos[abs_base + 3] & 0x0F;
- w_y = data->abs_pos[abs_base + 3] >> 4;
- w_max = max(w_x, w_y);
- w_min = min(w_x, w_y);
- z = data->abs_pos[abs_base + 4];
-
- if (axis_align->swap_axes) {
- temp = x;
- x = y;
- y = temp;
- temp = w_x;
- w_x = w_y;
- w_y = temp;
- }
+ x = (pos_data[0] << 4) | (pos_data[2] & 0x0F);
+ y = (pos_data[1] << 4) | (pos_data[2] >> 4);
- orient = w_x > w_y ? 1 : 0;
+ if (axis_align->swap_axes)
+ swap(x, y);
if (axis_align->flip_x)
x = max(sensor->max_x - x, 0);
@@ -641,13 +639,13 @@ static void rmi_f11_abs_pos_report(struct f11_data *f11,
y = max(sensor->max_y - y, 0);
/*
- * here checking if X offset or y offset are specified is
- * redundant. We just add the offsets or, clip the values
- *
- * note: offsets need to be done before clipping occurs,
- * or we could get funny values that are outside
- * clipping boundaries.
- */
+ * Here checking if X offset or y offset are specified is
+ * redundant. We just add the offsets or clip the values.
+ *
+ * Note: offsets need to be applied before clipping occurs,
+ * or we could get funny values that are outside of
+ * clipping boundaries.
+ */
x += axis_align->offset_x;
y += axis_align->offset_y;
x = max(axis_align->clip_x_low, x);
@@ -657,41 +655,44 @@ static void rmi_f11_abs_pos_report(struct f11_data *f11,
if (axis_align->clip_y_high)
y = min(axis_align->clip_y_high, y);
- }
+ w_x = pos_data[3] & 0x0f;
+ w_y = pos_data[3] >> 4;
- /* Some UIs ignore W of zero, so we fudge it to 1 for pens. This
- * only appears to be an issue when reporting pens, not plain old
- * fingers. */
- if (IS_ENABLED(CONFIG_RMI4_F11_PEN) &&
- get_tool_type(sensor, finger_state) == MT_TOOL_PEN) {
- w_max = max(1, w_max);
- w_min = max(1, w_min);
- }
+ if (axis_align->swap_axes)
+ swap(w_x, w_y);
- if (sensor->type_a) {
- input_report_abs(sensor->input, ABS_MT_TRACKING_ID, n_finger);
- input_report_abs(sensor->input, ABS_MT_TOOL_TYPE,
- get_tool_type(sensor, finger_state));
- } else {
- input_mt_slot(sensor->input, n_finger);
- input_mt_report_slot_state(sensor->input,
- get_tool_type(sensor, finger_state), finger_state);
- }
+ orient = w_x > w_y ? 1 : 0;
+
+ w_max = max(w_x, w_y);
+ w_min = min(w_x, w_y);
+
+ /*
+ * Some UIs ignore W of zero, so we fudge it to 1 for pens. This
+ * only appears to be an issue when reporting pens, not plain old
+ * fingers.
+ */
+ if (tool_type == MT_TOOL_PEN) {
+ w_max = max(1, w_max);
+ w_min = max(1, w_min);
+ }
+
+ z = pos_data[4];
+
+ input_report_abs(input, ABS_MT_PRESSURE, z);
+ input_report_abs(input, ABS_MT_TOUCH_MAJOR, w_max);
+ input_report_abs(input, ABS_MT_TOUCH_MINOR, w_min);
+ input_report_abs(input, ABS_MT_ORIENTATION, orient);
+ input_report_abs(input, ABS_MT_POSITION_X, x);
+ input_report_abs(input, ABS_MT_POSITION_Y, y);
- if (finger_state) {
- input_report_abs(sensor->input, ABS_MT_PRESSURE, z);
- input_report_abs(sensor->input, ABS_MT_TOUCH_MAJOR, w_max);
- input_report_abs(sensor->input, ABS_MT_TOUCH_MINOR, w_min);
- input_report_abs(sensor->input, ABS_MT_ORIENTATION, orient);
- input_report_abs(sensor->input, ABS_MT_POSITION_X, x);
- input_report_abs(sensor->input, ABS_MT_POSITION_Y, y);
dev_dbg(&sensor->fn->dev,
"finger[%d]:%d - x:%d y:%d z:%d w_max:%d w_min:%d\n",
n_finger, finger_state, x, y, z, w_max, w_min);
}
+
/* MT sync between fingers */
if (sensor->type_a)
- input_mt_sync(sensor->input);
+ input_mt_sync(input);
}
static void rmi_f11_finger_handler(struct f11_data *f11,
@@ -710,25 +711,31 @@ static void rmi_f11_finger_handler(struct f11_data *f11,
/* Possible of having 4 fingers per f_statet register */
finger_state = (f_state[i / 4] >> (2 * (i % 4))) &
FINGER_STATE_MASK;
- if (finger_state == F11_RESERVED) {
- pr_err("%s: Invalid finger state[%d]:0x%02x.", __func__,
- i, finger_state);
+ switch (finger_state) {
+ case F11_RESERVED:
+ pr_err("Invalid finger state[%d]: 0x%02x", i, finger_state);
continue;
- } else if ((finger_state == F11_PRESENT) ||
- (finger_state == F11_INACCURATE)) {
+
+ case F11_PRESENT:
+ case F11_INACCURATE:
finger_pressed_count++;
+ break;
+
+ case F11_NO_FINGER:
+ break;
}
abs_bits = bitmap_and(f11->result_bits, irq_bits, f11->abs_mask,
- num_irq_regs);
+ num_irq_regs);
if (abs_bits)
rmi_f11_abs_pos_report(f11, sensor, finger_state, i);
rel_bits = bitmap_and(f11->result_bits, irq_bits, f11->rel_mask,
- num_irq_regs);
+ num_irq_regs);
if (rel_bits)
rmi_f11_rel_pos_report(sensor, i);
}
+
input_mt_sync_frame(sensor->input);
input_sync(sensor->input);
}
--
Christopher Heiny
Senior Staff Firmware Engineer
Synaptics Incorporated
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/