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Subject[PATCH v3 12/20] Input: bcm5974 - Preparatory renames
Date
Rename touch properties to match established nomenclature, and define
the maximum number of fingers.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
---
drivers/input/mouse/bcm5974.c | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 39ac9ff..2de974c 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -183,18 +183,19 @@ struct tp_finger {
__le16 abs_y; /* absolute y coodinate */
__le16 rel_x; /* relative x coodinate */
__le16 rel_y; /* relative y coodinate */
- __le16 size_major; /* finger size, major axis? */
- __le16 size_minor; /* finger size, minor axis? */
+ __le16 tool_major; /* tool area, major axis */
+ __le16 tool_minor; /* tool area, minor axis */
__le16 orientation; /* 16384 when point, else 15 bit angle */
- __le16 force_major; /* trackpad force, major axis? */
- __le16 force_minor; /* trackpad force, minor axis? */
+ __le16 touch_major; /* touch area, major axis */
+ __le16 touch_minor; /* touch area, minor axis */
__le16 unused[3]; /* zeros */
__le16 multi; /* one finger: varies, more fingers: constant */
} __attribute__((packed,aligned(2)));

/* trackpad finger data size, empirically at least ten fingers */
+#define MAX_FINGERS 16
#define SIZEOF_FINGER sizeof(struct tp_finger)
-#define SIZEOF_ALL_FINGERS (16 * SIZEOF_FINGER)
+#define SIZEOF_ALL_FINGERS (MAX_FINGERS * SIZEOF_FINGER)
#define MAX_FINGER_ORIENTATION 16384

/* device-specific parameters */
@@ -482,13 +483,13 @@ static void report_finger_data(struct input_dev *input,
const struct tp_finger *f)
{
input_report_abs(input, ABS_MT_TOUCH_MAJOR,
- raw2int(f->force_major) << 1);
+ raw2int(f->touch_major) << 1);
input_report_abs(input, ABS_MT_TOUCH_MINOR,
- raw2int(f->force_minor) << 1);
+ raw2int(f->touch_minor) << 1);
input_report_abs(input, ABS_MT_WIDTH_MAJOR,
- raw2int(f->size_major) << 1);
+ raw2int(f->tool_major) << 1);
input_report_abs(input, ABS_MT_WIDTH_MINOR,
- raw2int(f->size_minor) << 1);
+ raw2int(f->tool_minor) << 1);
input_report_abs(input, ABS_MT_ORIENTATION,
MAX_FINGER_ORIENTATION - raw2int(f->orientation));
input_report_abs(input, ABS_MT_POSITION_X, raw2int(f->abs_x));
@@ -521,8 +522,8 @@ static int report_tp_state(struct bcm5974 *dev, int size)
for (i = 0; i < raw_n; i++)
report_finger_data(input, c, &f[i]);

- raw_p = raw2int(f->force_major);
- raw_w = raw2int(f->size_major);
+ raw_p = raw2int(f->touch_major);
+ raw_w = raw2int(f->tool_major);
raw_x = raw2int(f->abs_x);
raw_y = raw2int(f->abs_y);

@@ -542,7 +543,7 @@ static int report_tp_state(struct bcm5974 *dev, int size)
abs_y = int2bound(&c->y, c->y.devmax - raw_y);
while (raw_n--) {
ptest = int2bound(&c->p,
- raw2int(f->force_major));
+ raw2int(f->touch_major));
if (ptest > PRESSURE_LOW)
nmax++;
if (ptest > PRESSURE_HIGH)
--
1.7.12


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