tty: vt: define enums for CSI+h/l codes

Decrypt the constant values by proper enum names. This time in
set_mode().

Define two of them as DEC ('CSI ?') is about to be split away in the
next patches.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20240202065608.14019-3-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 7d42f148559ae40d99f226fb5267f60a1e8b1844..7b55d87248f8bf3104735afebf55db03db3e67e1 100644 (file)
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1862,6 +1862,24 @@ int mouse_reporting(void)
        return vc_cons[fg_console].d->vc_report_mouse;
 }
 
+enum {
+       CSI_DEC_hl_CURSOR_KEYS  = 1,    /* CKM: cursor keys send ^[Ox/^[[x */
+       CSI_DEC_hl_132_COLUMNS  = 3,    /* COLM: 80/132 mode switch */
+       CSI_DEC_hl_REVERSE_VIDEO = 5,   /* SCNM */
+       CSI_DEC_hl_ORIGIN_MODE  = 6,    /* OM: origin relative/absolute */
+       CSI_DEC_hl_AUTOWRAP     = 7,    /* AWM */
+       CSI_DEC_hl_AUTOREPEAT   = 8,    /* ARM */
+       CSI_DEC_hl_MOUSE_X10    = 9,
+       CSI_DEC_hl_SHOW_CURSOR  = 25,   /* TCEM */
+       CSI_DEC_hl_MOUSE_VT200  = 1000,
+};
+
+enum {
+       CSI_hl_DISPLAY_CTRL     = 3,    /* handle ansi control chars */
+       CSI_hl_INSERT           = 4,    /* IRM: insert/replace */
+       CSI_hl_AUTO_NL          = 20,   /* LNM: Enter == CrLf/Lf */
+};
+
 /* console_lock is held */
 static void set_mode(struct vc_data *vc, int on_off)
 {
@@ -1870,20 +1888,20 @@ static void set_mode(struct vc_data *vc, int on_off)
        for (i = 0; i <= vc->vc_npar; i++)
                if (vc->vc_priv == EPdec) {
                        switch(vc->vc_par[i]) { /* DEC private modes set/reset */
-                       case 1:                 /* Cursor keys send ^[Ox/^[[x */
+                       case CSI_DEC_hl_CURSOR_KEYS:
                                if (on_off)
                                        set_kbd(vc, decckm);
                                else
                                        clr_kbd(vc, decckm);
                                break;
-                       case 3: /* 80/132 mode switch unimplemented */
+                       case CSI_DEC_hl_132_COLUMNS:    /* unimplemented */
 #if 0
                                vc_resize(deccolm ? 132 : 80, vc->vc_rows);
                                /* this alone does not suffice; some user mode
                                   utility has to change the hardware regs */
 #endif
                                break;
-                       case 5:                 /* Inverted screen on/off */
+                       case CSI_DEC_hl_REVERSE_VIDEO:
                                if (vc->vc_decscnm != on_off) {
                                        vc->vc_decscnm = on_off;
                                        invert_screen(vc, 0,
@@ -1892,38 +1910,38 @@ static void set_mode(struct vc_data *vc, int on_off)
                                        update_attr(vc);
                                }
                                break;
-                       case 6:                 /* Origin relative/absolute */
+                       case CSI_DEC_hl_ORIGIN_MODE:
                                vc->vc_decom = on_off;
                                gotoxay(vc, 0, 0);
                                break;
-                       case 7:                 /* Autowrap on/off */
+                       case CSI_DEC_hl_AUTOWRAP:
                                vc->vc_decawm = on_off;
                                break;
-                       case 8:                 /* Autorepeat on/off */
+                       case CSI_DEC_hl_AUTOREPEAT:
                                if (on_off)
                                        set_kbd(vc, decarm);
                                else
                                        clr_kbd(vc, decarm);
                                break;
-                       case 9:
+                       case CSI_DEC_hl_MOUSE_X10:
                                vc->vc_report_mouse = on_off ? 1 : 0;
                                break;
-                       case 25:                /* Cursor on/off */
+                       case CSI_DEC_hl_SHOW_CURSOR:
                                vc->vc_deccm = on_off;
                                break;
-                       case 1000:
+                       case CSI_DEC_hl_MOUSE_VT200:
                                vc->vc_report_mouse = on_off ? 2 : 0;
                                break;
                        }
                } else {
                        switch(vc->vc_par[i]) { /* ANSI modes set/reset */
-                       case 3:                 /* Monitor (display ctrls) */
+                       case CSI_hl_DISPLAY_CTRL:
                                vc->vc_disp_ctrl = on_off;
                                break;
-                       case 4:                 /* Insert Mode on/off */
+                       case CSI_hl_INSERT:
                                vc->vc_decim = on_off;
                                break;
-                       case 20:                /* Lf, Enter == CrLf/Lf */
+                       case CSI_hl_AUTO_NL:
                                if (on_off)
                                        set_kbd(vc, lnm);
                                else