[PATCH 4/7] HID: N-trig MTM Driver fix And cleanup Patch 4

[mickib1]

From: micki <micki@micki-laptop.(none)>

Add ntrig_send_report - enable us to configure firmware.

N-trig is changing the way people interact with computers by providing a dual-mode pen and true multi-touch input device, specifically designed for today's advanced computing world.
N-trig DuoSense solution provides a real Hands-on computing experience, and sets the stage for OEMs and ISVs to introduce innovative computer products and applications for an intuitive, Hands-on experience directly onscreen.
DuoSense digitizers are easily integrated into existing technologies, support all LCDs, keep devices slim and light, and can be implemented in a broad range of products, ranging from small notebooks to large LCDs.
N-trig has offices in Israel, the US, Taiwan and Japan.

Signed-off-by: Micki Balanga <micki@xxxxxxxxxx>
---
 drivers/hid/hid-ntrig.c |   50 +++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 50 insertions(+), 0 deletions(-)

diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index 8130c3c..8cdb3c2 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -17,6 +17,8 @@
  *		Add debug Paramater change Driver name in hid_driver structure
  *	1.2 - N-trig - Change ntrig_input_mapping
  *	1.3 - N-trig - Change ntrig_input_mapped
+ *	1.4 - N-trig - Add ntrig_send_report function
+ *		send set feature command to firmware
  */
 
 /*
@@ -361,6 +363,54 @@ static int ntrig_event(struct hid_device *hid, struct hid_field *field,
 	return 1;
 }
 
+/*
+ * This function used to configure N-trig firmware
+ * The first command we need to send to firmware is change
+ * to Multi-touch Mode we don't receive a reply
+ */
+static int ntrig_send_report(struct hid_device *hid)
+{
+	struct hid_report *report;
+	struct list_head *report_list =
+			&hid->report_enum[HID_FEATURE_REPORT].report_list;
+
+	if (list_empty(report_list)) {
+		ntrig_dbg("no feature reports found\n");
+		return -ENODEV;
+	}
+	report = list_first_entry(report_list, struct hid_report, list);
+	if (report->maxfield < 1)
+		return -ENODEV;
+
+	list_for_each_entry(report,
+			    report_list, list) {
+		if (report->maxfield < 1) {
+		      ntrig_dbg("no fields in the report\n");
+		      continue;
+		}
+		ntrig_dbg("Report ID %x\n", report->id);
+		switch (report->id) {
+		case REPORTID_DRIVER_ALIVE:
+		      usbhid_submit_report(hid, report, USB_DIR_OUT);
+		      break;
+		      /*
+		       * These command will implement later accroding to demand
+		       */
+		case REPORTID_GET_VERSION:	/* FALLTHRU */
+		case REPORTID_SET_MODE_DUAL:	/* FALLTHRU */
+		case REPORTID_CALIBRATION:	/* FALLTHRU */
+		case REPORTID_GET_MODE:		/* FALLTHRU */
+		case REPORTID_SET_MODE_PEN:	/* FALLTHRU */
+		case REPORTID_SET_MODE_TOUCH:	/* FALLTHRU */
+		case REPORTID_CALIBRATION_RESPOND:/* FALLTHRU */
+		case HID_CAPACITORS_CALIB:	/* FALLTHRU */
+		case HID_GET_CAPACITORS_CALIB_DONE:
+		      break;
+		}
+	}
+	return 0;
+}
+
 static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int ret;
-- 
1.6.3.3

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