[PATCH v2] media: rc: Add support for another 0xffdc device

[pretoriano80]

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.

Reported-by: kbuild test robot <l...@intel.com>

Signed-off-by: pretoriano80 <viusf...@libero.it>
---
 drivers/media/rc/imon.c | 45 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c
index 7bee72108b0e..798ac95791cb 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 imon_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;
 
@@ -1843,6 +1881,13 @@ 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 *) 
&imon_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