linux-kernel - [PATCH v1 3/6] vt/vt: Enable mode change via escape sequence

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Message-ID: <eecb16842e26e1fe7ca6a4e70ead40b69efe4d0b.1593499846.git.tammo.block@gmail.com>
Date:   Tue, 30 Jun 2020 09:11:04 +0200
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 v1 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.

They are not a bitmasks, but mutually exclusive.

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 673177d4e859..e2324d8e4e74 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1896,13 +1896,25 @@ 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:		/* SRG protocol */
+				vc->vc_protocol_mouse = on_off * 1;
+				break;
+			case 1015:		/* URXVT protocol */
+				vc->vc_protocol_mouse = on_off * 2;
 				break;
 			}
 		} else {
@@ -2067,6 +2079,7 @@ 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	= 0;
 	vc->vc_utf              = default_utf8;
 	vc->vc_utf_count	= 0;
 
-- 
2.27.0