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Date: Fri, 22 Feb 2013 17:58:18 +0000
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 31/40] Input: atmel_mxt_ts - Implement T15 Key Array support
Signed-off-by: Nick Dyer <nick.dyer@...ev.co.uk>
---
drivers/input/touchscreen/atmel_mxt_ts.c | 52 ++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 02fce62..8794353 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -166,6 +166,11 @@ struct t9_range {
#define MXT_NOISE_FREQ4 15
#define MXT_NOISE_IDLEGCAFVALID 16
+/* T15 Key array */
+int mxt_t15_keys[] = { };
+
+static unsigned long mxt_t15_keystatus;
+
/* MXT_SPT_COMMSCONFIG_T18 */
#define MXT_COMMS_CTRL 0
#define MXT_COMMS_CMD 1
@@ -284,6 +289,8 @@ struct mxt_data {
u16 T7_address;
u8 T9_reportid_min;
u8 T9_reportid_max;
+ u8 T15_reportid_min;
+ u8 T15_reportid_max;
u8 T42_reportid_min;
u8 T42_reportid_max;
u16 T44_address;
@@ -740,6 +747,36 @@ static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
data->update_input = true;
}
+static void mxt_proc_t15_messages(struct mxt_data *data, u8 *msg)
+{
+ struct input_dev *input_dev = data->input_dev;
+ struct device *dev = &data->client->dev;
+ u8 key;
+ bool curr_state, new_state;
+ bool sync = false;
+ unsigned long keystates = le32_to_cpu(msg[2]);
+
+ for (key = 0; key < ARRAY_SIZE(mxt_t15_keys); key++) {
+ curr_state = test_bit(key, &mxt_t15_keystatus);
+ new_state = test_bit(key, &keystates);
+
+ if (!curr_state && new_state) {
+ dev_dbg(dev, "T15 key press: %u\n", key);
+ __set_bit(key, &mxt_t15_keystatus);
+ input_event(input_dev, EV_KEY, mxt_t15_keys[key], 1);
+ sync = true;
+ } else if (curr_state && !new_state) {
+ dev_dbg(dev, "T15 key release: %u\n", key);
+ __clear_bit(key, &mxt_t15_keystatus);
+ input_event(input_dev, EV_KEY, mxt_t15_keys[key], 0);
+ sync = true;
+ }
+ }
+
+ if (sync)
+ input_sync(input_dev);
+}
+
static void mxt_proc_t42_messages(struct mxt_data *data, u8 *msg)
{
struct device *dev = &data->client->dev;
@@ -851,6 +888,9 @@ static int mxt_proc_message(struct mxt_data *data, u8 *message)
} else if (report_id == data->T48_reportid) {
mxt_proc_t48_messages(data, message);
handled = true;
+ } else if (report_id >= data->T15_reportid_min
+ && report_id <= data->T15_reportid_max) {
+ mxt_proc_t15_messages(data, message);
}
if (!handled || data->debug_enabled)
@@ -1497,6 +1537,10 @@ static int mxt_get_object_table(struct mxt_data *data)
data->num_touchids =
object->num_report_ids * OBP_INSTANCES(object);
break;
+ case MXT_TOUCH_KEYARRAY_T15:
+ data->T15_reportid_min = min_id;
+ data->T15_reportid_max = max_id;
+ break;
case MXT_PROCI_TOUCHSUPPRESSION_T42:
data->T42_reportid_min = min_id;
data->T42_reportid_max = max_id;
@@ -2060,6 +2104,7 @@ static int mxt_initialize_t9_input_device(struct mxt_data *data)
struct input_dev *input_dev;
int error;
unsigned int num_mt_slots;
+ int key;
input_dev = input_allocate_device();
if (!input_dev) {
@@ -2117,6 +2162,13 @@ static int mxt_initialize_t9_input_device(struct mxt_data *data)
0, MT_TOOL_MAX, 0, 0);
}
+ /* For T15 key array */
+ if (data->T15_reportid_min) {
+ mxt_t15_keystatus = 0;
+ for (key = 0; key < ARRAY_SIZE(mxt_t15_keys); key++)
+ input_set_capability(input_dev, EV_KEY, mxt_t15_keys[key]);
+ }
+
input_set_drvdata(input_dev, data);
error = input_register_device(input_dev);
--
1.7.10.4
--
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