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-rw-r--r--drivers/s390/char/con3270.c324
1 files changed, 162 insertions, 162 deletions
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index 0a4fce0b557d..3c4e9f8a50d0 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -362,6 +362,168 @@ static void tty3270_write_callback(struct raw3270_request *rq, void *data)
xchg(&tp->write, rq);
}
+static int tty3270_required_length(struct tty3270 *tp, int line_nr)
+{
+ unsigned char f_color, b_color, highlight;
+ struct tty3270_line *line;
+ struct tty3270_cell *cell;
+ int i, flen = 3; /* Prefix (TO_SBA). */
+
+ line = tp->screen + line_nr;
+ flen += line->len;
+ highlight = TAX_RESET;
+ f_color = TAC_RESET;
+ b_color = TAC_RESET;
+
+ for (i = 0, cell = line->cells; i < line->len; i++, cell++) {
+ if (cell->attributes.highlight != highlight) {
+ flen += 3; /* TO_SA to switch highlight. */
+ highlight = cell->attributes.highlight;
+ }
+ if (cell->attributes.f_color != f_color) {
+ flen += 3; /* TO_SA to switch color. */
+ f_color = cell->attributes.f_color;
+ }
+ if (cell->attributes.b_color != b_color) {
+ flen += 3; /* TO_SA to switch color. */
+ b_color = cell->attributes.b_color;
+ }
+ if (cell->attributes.alternate_charset)
+ flen += 1; /* TO_GE to switch to graphics extensions */
+ }
+ if (highlight != TAX_RESET)
+ flen += 3; /* TO_SA to reset hightlight. */
+ if (f_color != TAC_RESET)
+ flen += 3; /* TO_SA to reset color. */
+ if (b_color != TAC_RESET)
+ flen += 3; /* TO_SA to reset color. */
+ if (line->len < tp->view.cols)
+ flen += 4; /* Postfix (TO_RA). */
+
+ return flen;
+}
+
+static char *tty3270_add_reset_attributes(struct tty3270 *tp, struct tty3270_line *line,
+ char *cp, struct tty3270_attribute *attr)
+{
+ if (attr->highlight != TAX_RESET) {
+ *cp++ = TO_SA;
+ *cp++ = TAT_EXTHI;
+ *cp++ = TAX_RESET;
+ }
+ if (attr->f_color != TAC_RESET) {
+ *cp++ = TO_SA;
+ *cp++ = TAT_FGCOLOR;
+ *cp++ = TAC_RESET;
+ }
+ if (attr->b_color != TAC_RESET) {
+ *cp++ = TO_SA;
+ *cp++ = TAT_BGCOLOR;
+ *cp++ = TAC_RESET;
+ }
+ if (line->len < tp->view.cols) {
+ *cp++ = TO_RA;
+ *cp++ = 0;
+ *cp++ = 0;
+ *cp++ = 0;
+ }
+ return cp;
+}
+
+static char *tty3270_add_attributes(struct tty3270_line *line, struct tty3270_attribute *attr,
+ char *cp)
+{
+ struct tty3270_cell *cell;
+ int i;
+
+ *cp++ = TO_SBA;
+ *cp++ = 0;
+ *cp++ = 0;
+
+ for (i = 0, cell = line->cells; i < line->len; i++, cell++) {
+ if (cell->attributes.highlight != attr->highlight) {
+ *cp++ = TO_SA;
+ *cp++ = TAT_EXTHI;
+ *cp++ = cell->attributes.highlight;
+ attr->highlight = cell->attributes.highlight;
+ }
+ if (cell->attributes.f_color != attr->f_color) {
+ *cp++ = TO_SA;
+ *cp++ = TAT_FGCOLOR;
+ *cp++ = cell->attributes.f_color;
+ attr->f_color = cell->attributes.f_color;
+ }
+ if (cell->attributes.b_color != attr->b_color) {
+ *cp++ = TO_SA;
+ *cp++ = TAT_BGCOLOR;
+ *cp++ = cell->attributes.b_color;
+ attr->b_color = cell->attributes.b_color;
+ }
+ if (cell->attributes.alternate_charset)
+ *cp++ = TO_GE;
+ *cp++ = cell->character;
+ }
+ return cp;
+}
+
+static void tty3270_reset_attributes(struct tty3270_attribute *attr)
+{
+ attr->highlight = TAX_RESET;
+ attr->f_color = TAC_RESET;
+ attr->b_color = TAC_RESET;
+}
+
+static struct string *tty3270_resize_line(struct tty3270 *tp, struct string *s, int newlen)
+{
+ struct string *n = tty3270_alloc_string(tp, newlen);
+
+ list_add(&n->list, &s->list);
+ list_del_init(&s->list);
+ if (!list_empty(&s->update))
+ list_del_init(&s->update);
+ free_string(&tp->freemem, s);
+ return n;
+}
+
+/*
+ * Convert a tty3270_line to a 3270 data fragment usable for output.
+ */
+static void tty3270_convert_line(struct tty3270 *tp, int line_nr)
+{
+ struct tty3270_line *line = tp->screen + line_nr;
+ struct tty3270_attribute attr;
+ struct string *s;
+ int flen, i;
+ char *cp;
+
+ /* Determine how long the fragment will be. */
+ flen = tty3270_required_length(tp, line_nr);
+ /* Find the line in the list. */
+ i = tty3270_tty_rows(tp) - line_nr;
+ list_for_each_entry_reverse(s, &tp->lines, list)
+ if (--i <= 0)
+ break;
+ /*
+ * Check if the line needs to get reallocated.
+ */
+ if (s->len != flen)
+ s = tty3270_resize_line(tp, s, flen);
+
+ /* Write 3270 data fragment. */
+ tty3270_reset_attributes(&attr);
+ cp = tty3270_add_attributes(line, &attr, s->string);
+ cp = tty3270_add_reset_attributes(tp, line, cp, &attr);
+ if (tp->nr_up + line_nr < tty3270_tty_rows(tp)) {
+ /* Line is currently visible on screen. */
+ tty3270_update_string(tp, s, line_nr);
+ /* Add line to update list. */
+ if (list_empty(&s->update)) {
+ list_add_tail(&s->update, &tp->update);
+ tp->update_flags |= TTY_UPDATE_LIST;
+ }
+ }
+}
+
/*
* Update 3270 display.
*/
@@ -1109,18 +1271,6 @@ static char tty3270_graphics_translate(struct tty3270 *tp, char ch)
}
}
-static struct string *tty3270_resize_line(struct tty3270 *tp, struct string *s, int newlen)
-{
- struct string *n = tty3270_alloc_string(tp, newlen);
-
- list_add(&n->list, &s->list);
- list_del_init(&s->list);
- if (!list_empty(&s->update))
- list_del_init(&s->update);
- free_string(&tp->freemem, s);
- return n;
-}
-
/*
* Insert character into the screen at the current position with the
* current color and highlight. This function does NOT do cursor movement.
@@ -1148,156 +1298,6 @@ static void tty3270_put_character(struct tty3270 *tp, char ch)
cell->attributes = tp->attributes;
}
-static int tty3270_required_length(struct tty3270 *tp, int line_nr)
-{
- unsigned char f_color, b_color, highlight;
- struct tty3270_line *line;
- struct tty3270_cell *cell;
- int i, flen = 3; /* Prefix (TO_SBA). */
-
- line = tp->screen + line_nr;
- flen += line->len;
- highlight = TAX_RESET;
- f_color = TAC_RESET;
- b_color = TAC_RESET;
-
- for (i = 0, cell = line->cells; i < line->len; i++, cell++) {
- if (cell->attributes.highlight != highlight) {
- flen += 3; /* TO_SA to switch highlight. */
- highlight = cell->attributes.highlight;
- }
- if (cell->attributes.f_color != f_color) {
- flen += 3; /* TO_SA to switch color. */
- f_color = cell->attributes.f_color;
- }
- if (cell->attributes.b_color != b_color) {
- flen += 3; /* TO_SA to switch color. */
- b_color = cell->attributes.b_color;
- }
- if (cell->attributes.alternate_charset)
- flen += 1; /* TO_GE to switch to graphics extensions */
- }
- if (highlight != TAX_RESET)
- flen += 3; /* TO_SA to reset hightlight. */
- if (f_color != TAC_RESET)
- flen += 3; /* TO_SA to reset color. */
- if (b_color != TAC_RESET)
- flen += 3; /* TO_SA to reset color. */
- if (line->len < tp->view.cols)
- flen += 4; /* Postfix (TO_RA). */
-
- return flen;
-}
-
-static char *tty3270_add_reset_attributes(struct tty3270 *tp, struct tty3270_line *line,
- char *cp, struct tty3270_attribute *attr)
-{
- if (attr->highlight != TAX_RESET) {
- *cp++ = TO_SA;
- *cp++ = TAT_EXTHI;
- *cp++ = TAX_RESET;
- }
- if (attr->f_color != TAC_RESET) {
- *cp++ = TO_SA;
- *cp++ = TAT_FGCOLOR;
- *cp++ = TAC_RESET;
- }
- if (attr->b_color != TAC_RESET) {
- *cp++ = TO_SA;
- *cp++ = TAT_BGCOLOR;
- *cp++ = TAC_RESET;
- }
- if (line->len < tp->view.cols) {
- *cp++ = TO_RA;
- *cp++ = 0;
- *cp++ = 0;
- *cp++ = 0;
- }
- return cp;
-}
-
-static char *tty3270_add_attributes(struct tty3270_line *line, struct tty3270_attribute *attr,
- char *cp)
-{
- struct tty3270_cell *cell;
- int i;
-
- *cp++ = TO_SBA;
- *cp++ = 0;
- *cp++ = 0;
-
- for (i = 0, cell = line->cells; i < line->len; i++, cell++) {
- if (cell->attributes.highlight != attr->highlight) {
- *cp++ = TO_SA;
- *cp++ = TAT_EXTHI;
- *cp++ = cell->attributes.highlight;
- attr->highlight = cell->attributes.highlight;
- }
- if (cell->attributes.f_color != attr->f_color) {
- *cp++ = TO_SA;
- *cp++ = TAT_FGCOLOR;
- *cp++ = cell->attributes.f_color;
- attr->f_color = cell->attributes.f_color;
- }
- if (cell->attributes.b_color != attr->b_color) {
- *cp++ = TO_SA;
- *cp++ = TAT_BGCOLOR;
- *cp++ = cell->attributes.b_color;
- attr->b_color = cell->attributes.b_color;
- }
- if (cell->attributes.alternate_charset)
- *cp++ = TO_GE;
- *cp++ = cell->character;
- }
- return cp;
-}
-
-static void tty3270_reset_attributes(struct tty3270_attribute *attr)
-{
- attr->highlight = TAX_RESET;
- attr->f_color = TAC_RESET;
- attr->b_color = TAC_RESET;
-}
-
-/*
- * Convert a tty3270_line to a 3270 data fragment usable for output.
- */
-static void tty3270_convert_line(struct tty3270 *tp, int line_nr)
-{
- struct tty3270_line *line = tp->screen + line_nr;
- struct tty3270_attribute attr;
- struct string *s;
- int flen, i;
- char *cp;
-
- /* Determine how long the fragment will be. */
- flen = tty3270_required_length(tp, line_nr);
- /* Find the line in the list. */
- i = tty3270_tty_rows(tp) - line_nr;
- list_for_each_entry_reverse(s, &tp->lines, list)
- if (--i <= 0)
- break;
- /*
- * Check if the line needs to get reallocated.
- */
- if (s->len != flen)
- s = tty3270_resize_line(tp, s, flen);
-
- /* Write 3270 data fragment. */
- tty3270_reset_attributes(&attr);
- cp = tty3270_add_attributes(line, &attr, s->string);
- cp = tty3270_add_reset_attributes(tp, line, cp, &attr);
- if (tp->nr_up + line_nr < tty3270_tty_rows(tp)) {
- /* Line is currently visible on screen. */
- tty3270_update_string(tp, s, line_nr);
- /* Add line to update list. */
- if (list_empty(&s->update)) {
- list_add_tail(&s->update, &tp->update);
- tp->update_flags |= TTY_UPDATE_LIST;
- }
- }
-}
-
/*
* Do carriage return.
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 09:06:22 +0000