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[src/trunk]: src/sys/dev/wscons make check cleaner, and simplify the code.
details: https://anonhg.NetBSD.org/src/rev/80d3e942c444
branches: trunk
changeset: 829179:80d3e942c444
user: christos <christos%NetBSD.org@localhost>
date: Sun Jan 21 01:18:48 2018 +0000
description:
make check cleaner, and simplify the code.
diffstat:
sys/dev/wscons/wsemul_vt100.c | 88 +++++++++++++++++-------------------------
1 files changed, 36 insertions(+), 52 deletions(-)
diffs (truncated from 304 to 300 lines):
diff -r ea823e8c2354 -r 80d3e942c444 sys/dev/wscons/wsemul_vt100.c
--- a/sys/dev/wscons/wsemul_vt100.c Sat Jan 20 23:27:06 2018 +0000
+++ b/sys/dev/wscons/wsemul_vt100.c Sun Jan 21 01:18:48 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: wsemul_vt100.c,v 1.42 2018/01/20 23:27:06 rin Exp $ */
+/* $NetBSD: wsemul_vt100.c,v 1.43 2018/01/21 01:18:48 christos Exp $ */
/*
* Copyright (c) 1998
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: wsemul_vt100.c,v 1.42 2018/01/20 23:27:06 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: wsemul_vt100.c,v 1.43 2018/01/21 01:18:48 christos Exp $");
#ifdef _KERNEL_OPT
#include "opt_wsmsgattrs.h"
@@ -230,7 +230,7 @@
edp->isolatin1tab = edp->decgraphtab = edp->dectechtab = 0;
edp->nrctab = 0;
wsemul_vt100_reset(edp);
- return (edp);
+ return edp;
}
void *
@@ -263,7 +263,7 @@
edp->nrctab = malloc(128 * sizeof(int), M_DEVBUF, M_NOWAIT);
vt100_initchartables(edp);
wsemul_vt100_reset(edp);
- return (edp);
+ return edp;
}
void
@@ -461,7 +461,7 @@
break;
case ASCII_ESC:
if (kernel) {
- printf("wsemul_vt100_output_c0c1: ESC in kernel output ignored\n");
+ printf("%s: ESC in kernel output ignored\n", __func__);
break; /* ignore the ESC */
}
@@ -490,7 +490,8 @@
case ST: /* string end 8-bit */
/* XXX only in VT100_EMUL_STATE_STRING */
wsemul_vt100_handle_dcs(edp);
- return (VT100_EMUL_STATE_NORMAL);
+ edp->state = VT100_EMUL_STATE_NORMAL;
+ break;
#endif
case ASCII_LF:
case ASCII_VT:
@@ -504,7 +505,6 @@
wsemul_vt100_output_esc(struct wsemul_vt100_emuldata *edp, u_char c)
{
struct vt100base_data *vd = &edp->bd;
- u_int newstate = VT100_EMUL_STATE_NORMAL;
int i;
switch (c) {
@@ -512,8 +512,7 @@
vd->nargs = 0;
memset(vd->args, 0, sizeof (vd->args));
vd->modif1 = vd->modif2 = '\0';
- newstate = VT100_EMUL_STATE_CSI;
- break;
+ return VT100_EMUL_STATE_CSI;
case '7': /* DECSC */
vd->flags |= VTFL_SAVEDCURS;
edp->savedcursor_row = vd->crow;
@@ -591,8 +590,7 @@
case 'P': /* DCS */
vd->nargs = 0;
memset(vd->args, 0, sizeof (vd->args));
- newstate = VT100_EMUL_STATE_DCS;
- break;
+ return VT100_EMUL_STATE_DCS;
case 'c': /* RIS */
wsemul_vt100_reset(edp);
wsemul_vt100_ed(vd, 2);
@@ -600,24 +598,19 @@
break;
case '(': case ')': case '*': case '+': /* SCS */
edp->designating = c - '(';
- newstate = VT100_EMUL_STATE_SCS94;
- break;
+ return VT100_EMUL_STATE_SCS94;
case '-': case '.': case '/': /* SCS */
edp->designating = c - '-' + 1;
- newstate = VT100_EMUL_STATE_SCS96;
- break;
+ return VT100_EMUL_STATE_SCS96;
case '#':
- newstate = VT100_EMUL_STATE_ESC_HASH;
- break;
+ return VT100_EMUL_STATE_ESC_HASH;
case ' ': /* 7/8 bit */
- newstate = VT100_EMUL_STATE_ESC_SPC;
- break;
+ return VT100_EMUL_STATE_ESC_SPC;
case ']': /* OSC operating system command */
case '^': /* PM privacy message */
case '_': /* APC application program command */
/* ignored */
- newstate = VT100_EMUL_STATE_STRING;
- break;
+ return VT100_EMUL_STATE_STRING;
case '<': /* exit VT52 mode - ignored */
break;
default:
@@ -626,19 +619,15 @@
#endif
break;
}
-
- return (newstate);
+ return VT100_EMUL_STATE_NORMAL;
}
static u_int
wsemul_vt100_output_scs94(struct wsemul_vt100_emuldata *edp, u_char c)
{
- u_int newstate = VT100_EMUL_STATE_NORMAL;
-
switch (c) {
case '%': /* probably DEC supplemental graphic */
- newstate = VT100_EMUL_STATE_SCS94_PERCENT;
- break;
+ return VT100_EMUL_STATE_SCS94_PERCENT;
case 'A': /* british / national */
edp->chartab_G[edp->designating] = edp->nrctab;
break;
@@ -661,7 +650,7 @@
#endif
break;
}
- return (newstate);
+ return VT100_EMUL_STATE_NORMAL;
}
static u_int
@@ -678,19 +667,17 @@
#endif
break;
}
- return (VT100_EMUL_STATE_NORMAL);
+ return VT100_EMUL_STATE_NORMAL;
}
static u_int
wsemul_vt100_output_scs96(struct wsemul_vt100_emuldata *edp, u_char c)
{
- u_int newstate = VT100_EMUL_STATE_NORMAL;
int nrc;
switch (c) {
case '%': /* probably portuguese */
- newstate = VT100_EMUL_STATE_SCS96_PERCENT;
- break;
+ return VT100_EMUL_STATE_SCS96_PERCENT;
case 'A': /* ISO-latin-1 supplemental */
edp->chartab_G[edp->designating] = edp->isolatin1tab;
break;
@@ -732,7 +719,7 @@
#endif
break;
}
- return (newstate);
+ return VT100_EMUL_STATE_NORMAL;
}
static u_int
@@ -748,7 +735,7 @@
#endif
break;
}
- return (VT100_EMUL_STATE_NORMAL);
+ return VT100_EMUL_STATE_NORMAL;
}
static u_int
@@ -768,7 +755,7 @@
#endif
break;
}
- return (VT100_EMUL_STATE_NORMAL);
+ return VT100_EMUL_STATE_NORMAL;
}
static u_int
@@ -778,7 +765,7 @@
if (vd->dcstype && vd->dcspos < DCS_MAXLEN)
vd->dcsarg[vd->dcspos++] = c;
- return (VT100_EMUL_STATE_STRING);
+ return VT100_EMUL_STATE_STRING;
}
static u_int
@@ -788,16 +775,15 @@
if (c == '\\') { /* ST complete */
wsemul_vt100_handle_dcs(vd);
- return (VT100_EMUL_STATE_NORMAL);
+ return VT100_EMUL_STATE_NORMAL;
} else
- return (VT100_EMUL_STATE_STRING);
+ return VT100_EMUL_STATE_STRING;
}
static u_int
wsemul_vt100_output_dcs(struct wsemul_vt100_emuldata *edp, u_char c)
{
struct vt100base_data *vd = &edp->bd;
- u_int newstate = VT100_EMUL_STATE_DCS;
switch (c) {
case '0': case '1': case '2': case '3': case '4':
@@ -822,8 +808,7 @@
newstate = VT100_EMUL_STATE_STRING;
switch (c) {
case '$':
- newstate = VT100_EMUL_STATE_DCS_DOLLAR;
- break;
+ return VT100_EMUL_STATE_DCS_DOLLAR;
case '{': /* DECDLD soft charset */
case '!': /* DECRQUPSS user preferred supplemental set */
/* 'u' must follow - need another state */
@@ -840,7 +825,7 @@
}
}
- return (newstate);
+ return VT100_EMUL_STATE_DCS;
}
static u_int
@@ -881,7 +866,7 @@
#endif
break;
}
- return (VT100_EMUL_STATE_STRING);
+ return VT100_EMUL_STATE_STRING;
}
static u_int
@@ -937,14 +922,13 @@
#endif
break;
}
- return (VT100_EMUL_STATE_NORMAL);
+ return VT100_EMUL_STATE_NORMAL;
}
static u_int
wsemul_vt100_output_csi(struct wsemul_vt100_emuldata *edp, u_char c)
{
struct vt100base_data *vd = &edp->bd;
- u_int newstate = VT100_EMUL_STATE_CSI;
switch (c) {
case '0': case '1': case '2': case '3': case '4':
@@ -977,10 +961,9 @@
vd->nargs = VT100_EMUL_NARGS;
}
wsemul_vt100_handle_csi(vd, c);
- newstate = VT100_EMUL_STATE_NORMAL;
- break;
+ return VT100_EMUL_STATE_NORMAL;
}
- return (newstate);
+ return VT100_EMUL_STATE_CSI;
}
void
@@ -991,7 +974,7 @@
#ifdef DIAGNOSTIC
if (kernel && !edp->console)
- panic("wsemul_vt100_output: kernel output, not console");
+ panic("%s: kernel output, not console", __func__);
#endif
if (vd->flags & VTFL_CURSORON)
@@ -1006,12 +989,13 @@
wsemul_vt100_output_normal(edp, *data, kernel);
continue;
}
- KASSERT(edp->state <= __arraycount(vt100_output));
- edp->state = vt100_output[edp->state - 1](edp, *data);
+ int state = edp->state - 1;
+ KASSERT(state < __arraycount(vt100_output));
+ edp->state = vt100_output[state](edp, *data);
}
if (vd->flags & VTFL_CURSORON)
(*vd->emulops->cursor)(vd->emulcookie, 1,
- vd->crow, vd->ccol << vd->dw);
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