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tty: vt: define an enum for CSI+K codes

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

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Tested-by: Helge Deller <deller@gmx.de> # parisc STI console
Link: https://lore.kernel.org/r/20240122110401.7289-16-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2024-01-22 12:03:29 +01:00 committed by Greg Kroah-Hartman
parent 8e6bd49a61
commit 7eb38a765e
1 changed files with 9 additions and 3 deletions
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12
drivers/tty/vt/vt.c
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@ -1542,6 +1542,12 @@ static void csi_J(struct vc_data *vc, enum CSI_J vpar)
vc->vc_need_wrap = 0;
}
enum {
CSI_K_CURSOR_TO_LINEEND = 0,
CSI_K_LINESTART_TO_CURSOR = 1,
CSI_K_LINE = 2,
};
static void csi_K(struct vc_data *vc)
{
unsigned int count;
@ -1549,15 +1555,15 @@ static void csi_K(struct vc_data *vc)
int offset;
switch (vc->vc_par[0]) {
case 0: /* erase from cursor to end of line */
case CSI_K_CURSOR_TO_LINEEND:
offset = 0;
count = vc->vc_cols - vc->state.x;
break;
case 1: /* erase from start of line to cursor */
case CSI_K_LINESTART_TO_CURSOR:
offset = -vc->state.x;
count = vc->state.x + 1;
break;
case 2: /* erase whole line */
case CSI_K_LINE:
offset = -vc->state.x;
count = vc->vc_cols;
break;