linux-kernel - [PATCH v4 3/6] vt/vt: Enable mode change via escape sequence

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Date:   Thu, 29 Oct 2020 13:10:15 +0100
From:   Tammo Block <tammo.block@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>
Subject: [PATCH v4 3/6] vt/vt: Enable mode change via escape sequence

This enables userspace to enable one of the mouse protocols and choose
one of the new event types by escape sequences.

And don't forget to reset protocol value also if resetting vc.

Signed-off-by: Tammo Block <tammo.block@...il.com>
---
 drivers/tty/vt/vt.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 9506a76f3ab6..02776d974fcb 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1905,13 +1905,25 @@ static void set_mode(struct vc_data *vc, int on_off)
 					clr_kbd(vc, decarm);
 				break;
 			case 9:
-				vc->vc_report_mouse = on_off ? 1 : 0;
+				vc->vc_report_mouse = on_off * TIOCL_REPORTBTNPRESS;
 				break;
 			case 25:		/* Cursor on/off */
 				vc->vc_deccm = on_off;
 				break;
 			case 1000:
-				vc->vc_report_mouse = on_off ? 2 : 0;
+				vc->vc_report_mouse = on_off * TIOCL_REPORTRELEASE;
+				break;
+			case 1002:
+				vc->vc_report_mouse = on_off * TIOCL_REPORTDRAG;
+				break;
+			case 1003:
+				vc->vc_report_mouse = on_off * TIOCL_REPORTANYMOVE;
+				break;
+			case 1006:
+				vc->vc_protocol_mouse = on_off * VC_PMOUSE_SRG;
+				break;
+			case 1015:
+				vc->vc_protocol_mouse = on_off * VC_PMOUSE_URXVT;
 				break;
 			}
 		} else {
@@ -2076,6 +2088,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear)
 	vc->state.charset	= 0;
 	vc->vc_need_wrap	= 0;
 	vc->vc_report_mouse	= 0;
+	vc->vc_protocol_mouse	= VC_PMOUSE_X10;
 	vc->vc_utf              = default_utf8;
 	vc->vc_utf_count	= 0;
 
-- 
2.28.0