[PATCH] media: rc: Add support for another iMON 0xffdc device

[Flavius Georgescu <pretoriano.mp@xxxxxxxxx>]

The device it's an iMON UltraBay (0x98 in config byte) with LCD,
IR and dual-knobs front panel.

To work properly the device also require its own key table,
and repeat suppression for all buttons.

Signed-off-by: Flavius Georgescu <pretoriano.mp@xxxxxxxxx>
Co-developed-by: Chris Vandomelen <chris@xxxxxxxxxxxxxx>
Signed-off-by: Chris Vandomelen <chris@xxxxxxxxxxxxxx>
---
 drivers/media/rc/imon.c | 46 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c
index 37a850421fbb..17141d57e311 100644
--- a/drivers/media/rc/imon.c
+++ b/drivers/media/rc/imon.c
@@ -83,6 +83,7 @@ struct imon_usb_dev_descr {
 	__u16 flags;
 #define IMON_NO_FLAGS 0
 #define IMON_NEED_20MS_PKT_DELAY 1
+#define IMON_SUPPRESS_REPEATED_KEYS 2
 	struct imon_panel_key_table key_table[];
 };

@@ -315,6 +316,32 @@ static const struct imon_usb_dev_descr imon_DH102 = {
 	}
 };

+/* imon ultrabay front panel key table */
+static const struct imon_usb_dev_descr ultrabay_table = {
+	.flags = IMON_SUPPRESS_REPEATED_KEYS,
+	.key_table = {
+		{ 0x0000000f0000ffeell, KEY_MEDIA },      /* Go */
+		{ 0x000000000100ffeell, KEY_UP },
+		{ 0x000000000001ffeell, KEY_DOWN },
+		{ 0x000000160000ffeell, KEY_ENTER },
+		{ 0x0000001f0000ffeell, KEY_AUDIO },	/* Music */
+		{ 0x000000200000ffeell, KEY_VIDEO },	/* Movie */
+		{ 0x000000210000ffeell, KEY_CAMERA },	/* Photo */
+		{ 0x000000270000ffeell, KEY_DVD },
+		{ 0x000000230000ffeell, KEY_TV },
+		{ 0x000000050000ffeell, KEY_PREVIOUS },
+		{ 0x000000070000ffeell, KEY_REWIND },
+		{ 0x000000040000ffeell, KEY_STOP },
+		{ 0x000000020000ffeell, KEY_PLAYPAUSE },
+		{ 0x000000080000ffeell, KEY_FASTFORWARD },
+		{ 0x000000060000ffeell, KEY_NEXT },
+		{ 0x000100000000ffeell, KEY_VOLUMEUP },
+		{ 0x010000000000ffeell, KEY_VOLUMEDOWN },
+		{ 0x000000010000ffeell, KEY_MUTE },
+		{ 0, KEY_RESERVED },
+	}
+};
+
 /*
  * USB Device ID for iMON USB Control Boards
  *
@@ -1661,6 +1688,17 @@ static void imon_incoming_packet(struct imon_context *ictx,
 			return;
 		}
 	}
+	/* KEY repeats from knob need to be suppressed */
+	if (ictx->dev_descr->flags & IMON_SUPPRESS_REPEATED_KEYS) {
+		if (ictx->kc == ictx->last_keycode) {
+			msec = ktime_ms_delta(t, prev_time);
+			if (msec < ictx->idev->rep[REP_DELAY]) {
+				spin_unlock_irqrestore(&ictx->kc_lock, flags);
+				return;
+			}
+		}
+	}
+
 	prev_time = t;
 	kc = ictx->kc;

@@ -1848,6 +1886,14 @@ static void imon_get_ffdc_type(struct imon_context *ictx)
 		dev_info(ictx->dev, "0xffdc iMON Inside, iMON IR");
 		ictx->display_supported = false;
 		break;
+	/* Soundgraph iMON UltraBay */
+	case 0x98:
+		dev_info(ictx->dev, "0xffdc iMON UltraBay, LCD + IR");
+		detected_display_type = IMON_DISPLAY_TYPE_LCD;
+		allowed_protos = RC_PROTO_BIT_IMON | RC_PROTO_BIT_RC6_MCE;
+		ictx->dev_descr = (struct imon_usb_dev_descr *) &ultrabay_table;
+		break;
+
 	default:
 		dev_info(ictx->dev, "Unknown 0xffdc device, defaulting to VFD and iMON IR");
 		detected_display_type = IMON_DISPLAY_TYPE_VFD;
--
2.20.1