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Subject[PATCH 20/21 v5] Input: atmel_mxt_ts - send all MT-B slots in one input report
Date
Each interrupt contains information for all contacts with changing
properties. Process all of this information at once, and send it all in a
a single input report (ie input events ending in EV_SYN/SYN_REPORT).

This patch was tested using an MXT224E.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
---
drivers/input/touchscreen/atmel_mxt_ts.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index b218b5f..f9a9be9 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -546,9 +546,6 @@ static void mxt_input_touchevent(struct mxt_data *data,
input_report_abs(input_dev, ABS_MT_PRESSURE, pressure);
input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area);
}
-
- input_mt_report_pointer_emulation(input_dev, false);
- input_sync(input_dev);
}

static irqreturn_t mxt_interrupt(int irq, void *dev_id)
@@ -560,6 +557,7 @@ static irqreturn_t mxt_interrupt(int irq, void *dev_id)
u8 reportid;
u8 max_reportid;
u8 min_reportid;
+ bool update_input = false;

do {
if (mxt_read_message(data, &message)) {
@@ -573,12 +571,19 @@ static irqreturn_t mxt_interrupt(int irq, void *dev_id)
min_reportid = data->T9_reportid_min;
id = reportid - min_reportid;

- if (reportid >= min_reportid && reportid <= max_reportid)
+ if (reportid >= min_reportid && reportid <= max_reportid) {
mxt_input_touchevent(data, &message, id);
- else
+ update_input = true;
+ } else {
mxt_dump_message(dev, &message);
+ }
} while (reportid != 0xff);

+ if (update_input) {
+ input_mt_report_pointer_emulation(data->input_dev, false);
+ input_sync(data->input_dev);
+ }
+
end:
return IRQ_HANDLED;
}
--
1.7.7.3


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