[PATCH 16/16 v2] Input: atmel_mxt_ts - parse T6 reports
From: Daniel Kurtz <hidden>
Date: 2012-03-29 16:50:15
Also in:
lkml
Subsystem:
atmel maxtouch driver, input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Nick Dyer, Dmitry Torokhov, Linus Torvalds
The normal messages sent after boot or NVRAM update are T6 reports, containing a status, and the config memory checksum. Parse them and dump a useful info message. This patch tested on an MXT224E. Signed-off-by: Daniel Kurtz <redacted> --- drivers/input/touchscreen/atmel_mxt_ts.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index d8b23ad..f3dfb4f 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c@@ -247,6 +247,7 @@ struct mxt_data { unsigned int max_y; /* Cached parameters from object table */ + u8 T6_reportid; u8 T9_reportid_min; u8 T9_reportid_max; };
@@ -552,6 +553,12 @@ static irqreturn_t mxt_interrupt(int irq, void *dev_id) message.reportid <= data->T9_reportid_max) { mxt_input_touch(data, &message); update_input = true; + } else if (message.reportid == data->T6_reportid) { + unsigned csum = message.message[1] | + (message.message[2] << 8) | + (message.message[3] << 16); + dev_info(dev, "Status: %02x Config Checksum: %06x\n", + message.message[0], csum); } else { mxt_dump_message(dev, &message); }
@@ -723,6 +730,9 @@ static int mxt_get_object_table(struct mxt_data *data) object->instances, min_id, max_id); switch (object->type) { + case MXT_GEN_COMMAND_T6: + data->T6_reportid = min_id; + break; case MXT_TOUCH_MULTI_T9: data->T9_reportid_min = min_id; data->T9_reportid_max = max_id;
--
1.7.7.3