linux-kernel - [PATCH 38/53] Input: atmel_mxt_ts - Output status from T42 Touch Suppression

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Message-Id: <1370453866-16534-39-git-send-email-nick.dyer@itdev.co.uk>
Date:	Wed,  5 Jun 2013 18:37:31 +0100
From:	Nick Dyer <nick.dyer@...ev.co.uk>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Daniel Kurtz <djkurtz@...omium.org>,
	Henrik Rydberg <rydberg@...omail.se>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Alan.Bowens@...el.com, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org, pmeerw@...erw.net,
	bleung@...omium.org, olofj@...omium.org
Cc:	Nick Dyer <nick.dyer@...ev.co.uk>
Subject: [PATCH 38/53] Input: atmel_mxt_ts - Output status from T42 Touch Suppression

Signed-off-by: Nick Dyer <nick.dyer@...ev.co.uk>
Acked-by: Benson Leung <bleung@...omium.org>
---
 drivers/input/touchscreen/atmel_mxt_ts.c |   25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 5291471..27a2425 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -187,6 +187,9 @@ struct t9_range {
 #define MXT_RESET_VALUE		0x01
 #define MXT_BACKUP_VALUE	0x55
 
+/* Define for MXT_PROCI_TOUCHSUPPRESSION_T42 */
+#define MXT_T42_MSG_TCHSUP	(1 << 0)
+
 /* Delay times */
 #define MXT_BACKUP_TIME		50	/* msec */
 #define MXT_RESET_TIME		200	/* msec */
@@ -268,6 +271,8 @@ struct mxt_data {
 	u8 T9_reportid_min;
 	u8 T9_reportid_max;
 	u8 T19_reportid;
+	u8 T42_reportid_min;
+	u8 T42_reportid_max;
 	u16 T44_address;
 	u8 T48_reportid;
 
@@ -771,6 +776,17 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
 	data->update_input = true;
 }
 
+static void mxt_proc_t42_messages(struct mxt_data *data, u8 *msg)
+{
+	struct device *dev = &data->client->dev;
+	u8 status = msg[1];
+
+	if (status & MXT_T42_MSG_TCHSUP)
+		dev_info(dev, "T42 suppress\n");
+	else
+		dev_info(dev, "T42 normal\n");
+}
+
 static int mxt_proc_t48_messages(struct mxt_data *data, u8 *msg)
 {
 	struct device *dev = &data->client->dev;
@@ -807,6 +823,9 @@ static int mxt_proc_message(struct mxt_data *data, u8 *message)
 	} else if (report_id == data->T19_reportid) {
 		mxt_input_button(data, message);
 		data->update_input = true;
+	} else if (report_id >= data->T42_reportid_min
+		   && report_id <= data->T42_reportid_max) {
+		mxt_proc_t42_messages(data, message);
 	} else if (report_id == data->T48_reportid) {
 		mxt_proc_t48_messages(data, message);
 	} else {
@@ -1448,6 +1467,8 @@ static void mxt_free_object_table(struct mxt_data *data)
 	data->T9_reportid_min = 0;
 	data->T9_reportid_max = 0;
 	data->T19_reportid = 0;
+	data->T42_reportid_min = 0;
+	data->T42_reportid_max = 0;
 	data->T44_address = 0;
 	data->T48_reportid = 0;
 	data->max_reportid = 0;
@@ -1517,6 +1538,10 @@ static int mxt_get_object_table(struct mxt_data *data)
 			data->num_touchids = object->num_report_ids
 						* mxt_obj_instances(object);
 			break;
+		case MXT_PROCI_TOUCHSUPPRESSION_T42:
+			data->T42_reportid_min = min_id;
+			data->T42_reportid_max = max_id;
+			break;
 		case MXT_SPT_MESSAGECOUNT_T44:
 			data->T44_address = object->start_address;
 			break;
-- 
1.7.10.4

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