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authorOlof Johansson <olof@lixom.net>2012-09-17 03:12:26 (GMT)
committerOlof Johansson <olof@lixom.net>2012-09-17 03:13:04 (GMT)
commitf4936639bc4a75218b5598ff69c52b9a8dd7f23d (patch)
tree9c08fc81cb3d3e658ca7f8dc20a949496d9e6130 /drivers/tty/vt/vt.c
parentd1226e8f98f130918265fb5b4dddcb60b783eb34 (diff)
parent11964f53eb4d9ce59a058be9999d9cfcb1ced878 (diff)
downloadlinux-fsl-qoriq-f4936639bc4a75218b5598ff69c52b9a8dd7f23d.tar.xz
Merge tag 'omap-devel-am33xx-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc
From Tony Lindgren: From Paul Walmsley <paul@pwsan.com>: AM33xx hwmod data and miscellaneous clock and hwmod fixes. AM33xx should now boot on mainline after this is applied, according to Vaibhav. (The shortlog makes no sense here since it contains mostly the dependent cleanups that are part of the preceding branches). Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/tty/vt/vt.c')
-rw-r--r--drivers/tty/vt/vt.c141
1 files changed, 54 insertions, 87 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 84cbf29..999ca63 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -537,45 +537,27 @@ void complement_pos(struct vc_data *vc, int offset)
static void insert_char(struct vc_data *vc, unsigned int nr)
{
- unsigned short *p, *q = (unsigned short *)vc->vc_pos;
+ unsigned short *p = (unsigned short *) vc->vc_pos;
- p = q + vc->vc_cols - nr - vc->vc_x;
- while (--p >= q)
- scr_writew(scr_readw(p), p + nr);
- scr_memsetw(q, vc->vc_video_erase_char, nr * 2);
+ scr_memmovew(p + nr, p, vc->vc_cols - vc->vc_x);
+ scr_memsetw(p, vc->vc_video_erase_char, nr * 2);
vc->vc_need_wrap = 0;
- if (DO_UPDATE(vc)) {
- unsigned short oldattr = vc->vc_attr;
- vc->vc_sw->con_bmove(vc, vc->vc_y, vc->vc_x, vc->vc_y, vc->vc_x + nr, 1,
- vc->vc_cols - vc->vc_x - nr);
- vc->vc_attr = vc->vc_video_erase_char >> 8;
- while (nr--)
- vc->vc_sw->con_putc(vc, vc->vc_video_erase_char, vc->vc_y, vc->vc_x + nr);
- vc->vc_attr = oldattr;
- }
+ if (DO_UPDATE(vc))
+ do_update_region(vc, (unsigned long) p,
+ (vc->vc_cols - vc->vc_x) / 2 + 1);
}
static void delete_char(struct vc_data *vc, unsigned int nr)
{
- unsigned int i = vc->vc_x;
- unsigned short *p = (unsigned short *)vc->vc_pos;
+ unsigned short *p = (unsigned short *) vc->vc_pos;
- while (++i <= vc->vc_cols - nr) {
- scr_writew(scr_readw(p+nr), p);
- p++;
- }
- scr_memsetw(p, vc->vc_video_erase_char, nr * 2);
+ scr_memcpyw(p, p + nr, vc->vc_cols - vc->vc_x - nr);
+ scr_memsetw(p + vc->vc_cols - vc->vc_x - nr, vc->vc_video_erase_char,
+ nr * 2);
vc->vc_need_wrap = 0;
- if (DO_UPDATE(vc)) {
- unsigned short oldattr = vc->vc_attr;
- vc->vc_sw->con_bmove(vc, vc->vc_y, vc->vc_x + nr, vc->vc_y, vc->vc_x, 1,
- vc->vc_cols - vc->vc_x - nr);
- vc->vc_attr = vc->vc_video_erase_char >> 8;
- while (nr--)
- vc->vc_sw->con_putc(vc, vc->vc_video_erase_char, vc->vc_y,
- vc->vc_cols - 1 - nr);
- vc->vc_attr = oldattr;
- }
+ if (DO_UPDATE(vc))
+ do_update_region(vc, (unsigned long) p,
+ (vc->vc_cols - vc->vc_x) / 2);
}
static int softcursor_original;
@@ -1172,45 +1154,26 @@ static void csi_J(struct vc_data *vc, int vpar)
case 0: /* erase from cursor to end of display */
count = (vc->vc_scr_end - vc->vc_pos) >> 1;
start = (unsigned short *)vc->vc_pos;
- if (DO_UPDATE(vc)) {
- /* do in two stages */
- vc->vc_sw->con_clear(vc, vc->vc_y, vc->vc_x, 1,
- vc->vc_cols - vc->vc_x);
- vc->vc_sw->con_clear(vc, vc->vc_y + 1, 0,
- vc->vc_rows - vc->vc_y - 1,
- vc->vc_cols);
- }
break;
case 1: /* erase from start to cursor */
count = ((vc->vc_pos - vc->vc_origin) >> 1) + 1;
start = (unsigned short *)vc->vc_origin;
- if (DO_UPDATE(vc)) {
- /* do in two stages */
- vc->vc_sw->con_clear(vc, 0, 0, vc->vc_y,
- vc->vc_cols);
- vc->vc_sw->con_clear(vc, vc->vc_y, 0, 1,
- vc->vc_x + 1);
- }
break;
case 3: /* erase scroll-back buffer (and whole display) */
scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char,
vc->vc_screenbuf_size >> 1);
set_origin(vc);
- if (CON_IS_VISIBLE(vc))
- update_screen(vc);
/* fall through */
case 2: /* erase whole display */
count = vc->vc_cols * vc->vc_rows;
start = (unsigned short *)vc->vc_origin;
- if (DO_UPDATE(vc))
- vc->vc_sw->con_clear(vc, 0, 0,
- vc->vc_rows,
- vc->vc_cols);
break;
default:
return;
}
scr_memsetw(start, vc->vc_video_erase_char, 2 * count);
+ if (DO_UPDATE(vc))
+ do_update_region(vc, (unsigned long) start, count);
vc->vc_need_wrap = 0;
}
@@ -1223,29 +1186,22 @@ static void csi_K(struct vc_data *vc, int vpar)
case 0: /* erase from cursor to end of line */
count = vc->vc_cols - vc->vc_x;
start = (unsigned short *)vc->vc_pos;
- if (DO_UPDATE(vc))
- vc->vc_sw->con_clear(vc, vc->vc_y, vc->vc_x, 1,
- vc->vc_cols - vc->vc_x);
break;
case 1: /* erase from start of line to cursor */
start = (unsigned short *)(vc->vc_pos - (vc->vc_x << 1));
count = vc->vc_x + 1;
- if (DO_UPDATE(vc))
- vc->vc_sw->con_clear(vc, vc->vc_y, 0, 1,
- vc->vc_x + 1);
break;
case 2: /* erase whole line */
start = (unsigned short *)(vc->vc_pos - (vc->vc_x << 1));
count = vc->vc_cols;
- if (DO_UPDATE(vc))
- vc->vc_sw->con_clear(vc, vc->vc_y, 0, 1,
- vc->vc_cols);
break;
default:
return;
}
scr_memsetw(start, vc->vc_video_erase_char, 2 * count);
vc->vc_need_wrap = 0;
+ if (DO_UPDATE(vc))
+ do_update_region(vc, (unsigned long) start, count);
}
static void csi_X(struct vc_data *vc, int vpar) /* erase the following vpar positions */
@@ -1380,7 +1336,7 @@ static void respond_string(const char *p, struct tty_struct *tty)
tty_insert_flip_char(tty, *p, 0);
p++;
}
- con_schedule_flip(tty);
+ tty_schedule_flip(tty);
}
static void cursor_report(struct vc_data *vc, struct tty_struct *tty)
@@ -2792,41 +2748,52 @@ static void con_flush_chars(struct tty_struct *tty)
/*
* Allocate the console screen memory.
*/
-static int con_open(struct tty_struct *tty, struct file *filp)
+static int con_install(struct tty_driver *driver, struct tty_struct *tty)
{
unsigned int currcons = tty->index;
- int ret = 0;
+ struct vc_data *vc;
+ int ret;
console_lock();
- if (tty->driver_data == NULL) {
- ret = vc_allocate(currcons);
- if (ret == 0) {
- struct vc_data *vc = vc_cons[currcons].d;
+ ret = vc_allocate(currcons);
+ if (ret)
+ goto unlock;
- /* Still being freed */
- if (vc->port.tty) {
- console_unlock();
- return -ERESTARTSYS;
- }
- tty->driver_data = vc;
- vc->port.tty = tty;
+ vc = vc_cons[currcons].d;
- if (!tty->winsize.ws_row && !tty->winsize.ws_col) {
- tty->winsize.ws_row = vc_cons[currcons].d->vc_rows;
- tty->winsize.ws_col = vc_cons[currcons].d->vc_cols;
- }
- if (vc->vc_utf)
- tty->termios->c_iflag |= IUTF8;
- else
- tty->termios->c_iflag &= ~IUTF8;
- console_unlock();
- return ret;
- }
+ /* Still being freed */
+ if (vc->port.tty) {
+ ret = -ERESTARTSYS;
+ goto unlock;
}
+
+ ret = tty_port_install(&vc->port, driver, tty);
+ if (ret)
+ goto unlock;
+
+ tty->driver_data = vc;
+ vc->port.tty = tty;
+
+ if (!tty->winsize.ws_row && !tty->winsize.ws_col) {
+ tty->winsize.ws_row = vc_cons[currcons].d->vc_rows;
+ tty->winsize.ws_col = vc_cons[currcons].d->vc_cols;
+ }
+ if (vc->vc_utf)
+ tty->termios.c_iflag |= IUTF8;
+ else
+ tty->termios.c_iflag &= ~IUTF8;
+unlock:
console_unlock();
return ret;
}
+static int con_open(struct tty_struct *tty, struct file *filp)
+{
+ /* everything done in install */
+ return 0;
+}
+
+
static void con_close(struct tty_struct *tty, struct file *filp)
{
/* Nothing to do - we defer to shutdown */
@@ -2839,7 +2806,6 @@ static void con_shutdown(struct tty_struct *tty)
console_lock();
vc->port.tty = NULL;
console_unlock();
- tty_shutdown(tty);
}
static int default_italic_color = 2; // green (ASCII)
@@ -2947,6 +2913,7 @@ static int __init con_init(void)
console_initcall(con_init);
static const struct tty_operations con_ops = {
+ .install = con_install,
.open = con_open,
.close = con_close,
.write = con_write,