* [PATCH v2 00/47] tty: vt: cleanup and documentation
@ 2024-01-22 11:03 Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 01/47] vgacon: inline vc_scrolldelta_helper() into vgacon_scrolldelta() Jiri Slaby (SUSE)
` (23 more replies)
0 siblings, 24 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: Martin Hostettler, linux-fbdev, linux-serial, linux-parisc,
Jonathan Corbet, Thomas Zimmermann, Helge Deller, linux-doc,
linux-kernel, dri-devel, James E.J. Bottomley, Daniel Vetter,
Jiri Slaby (SUSE)
Push the console code (vt.c, vt.h, console.h, ...) into a bit more
maintainable state. Especially all around consw structure and document
it.
CSI parser is also a bit cleaned up. More to follow some time in the
next round.
[v2] See respective patches for changes. The major changes:
* vesa.h introduced
* parameters of csi*() simplified
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: Martin Hostettler <textshell@uchuujin.de>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Jiri Slaby (SUSE) (47):
vgacon: inline vc_scrolldelta_helper() into vgacon_scrolldelta()
fbcon: make display_desc a static array in fbcon_startup()
tty: vt: fix 20 vs 0x20 typo in EScsiignore
tty: vt: expect valid vc when in tty ops
tty: vt: pass proper pointers from tioclinux()
tty: vt: push console lock from tioclinux() down to 2 functions
tty: vt: pass vc_resize_user as a parameter
tty: vt: make vc_is_sel()'s vc const
tty: vt: define an enum for CSI+m codes
tty: vt: use case ranges for CSI+m fg/bg colors
tty: vt: define an enum for CSI+J codes
tty: vt: reflow csi_J()
use clamp() for counts in csi_?() handlers
don't pass vc->vc_par[0] to csi_?() handlers
tty: vt: define an enum for CSI+K codes
tty: vt: reflow csi_K()
tty: vt: define an enum for ascii characters
tty: vt: remove extern from functions in selection.h
tty: vt: make consw::con_debug_*() return void
tty: vt: make init parameter of consw::con_init() a bool
tty: vt: sanitize arguments of consw::con_clear()
tty: vt: remove checks for count in consw::con_clear() implementations
tty: vt: add con_putc() helper
tty: vt: eliminate unneeded consw::con_putc() implementations
tty: vt: sanitize consw::con_putc() parameters
tty: vt: sanitize consw::con_putcs() parameters
consoles: use if instead of switch-case in consw::con_cursor()
fbdev/core: simplify cursor_state setting in fbcon_ops::cursor()
tty: vt: remove CM_* constants
tty: vt: make consw::con_switch() return a bool
tty: vt: stop using -1 for blank mode in consw::con_blank()
tty: vt: define a common enum for VESA blanking constants
tty: vt: use VESA blanking constants
tty: vt: use enum constants for VESA blanking modes
tty: vt: make types around consw::con_blank() bool
tty: vt: make font of consw::con_font_set() const
tty: vt: make consw::con_font_default()'s name const
tty: vt: change consw::con_set_origin() return type
fbcon: remove consw::con_screen_pos()
tty: vt: remove consw::con_screen_pos()
tty: vt: make types of screenpos() more consistent
fbcon: remove fbcon_getxy()
tty: vt: remove consw::con_getxy()
tty: vt: remove unused consw::con_flush_scrollback()
tty: vt: document the rest of struct consw
tty: vt: fix up kernel-doc
Documentation: add console.rst
Documentation/driver-api/tty/console.rst | 45 ++
Documentation/driver-api/tty/index.rst | 1 +
drivers/tty/vt/selection.c | 43 +-
drivers/tty/vt/vt.c | 645 +++++++++++------------
drivers/tty/vt/vt_ioctl.c | 6 +-
drivers/video/console/dummycon.c | 38 +-
drivers/video/console/mdacon.c | 43 +-
drivers/video/console/newport_con.c | 69 +--
drivers/video/console/sticon.c | 79 ++-
drivers/video/console/vgacon.c | 152 +++---
drivers/video/fbdev/core/bitblit.c | 13 +-
drivers/video/fbdev/core/fbcon.c | 123 ++---
drivers/video/fbdev/core/fbcon.h | 4 +-
drivers/video/fbdev/core/fbcon_ccw.c | 13 +-
drivers/video/fbdev/core/fbcon_cw.c | 13 +-
drivers/video/fbdev/core/fbcon_ud.c | 13 +-
drivers/video/fbdev/core/tileblit.c | 4 +-
include/linux/console.h | 124 +++--
include/linux/console_struct.h | 1 -
include/linux/selection.h | 56 +-
include/linux/vt_kern.h | 12 +-
include/uapi/linux/fb.h | 8 +-
include/uapi/linux/vesa.h | 18 +
23 files changed, 755 insertions(+), 768 deletions(-)
create mode 100644 Documentation/driver-api/tty/console.rst
create mode 100644 include/uapi/linux/vesa.h
--
2.43.0
^ permalink raw reply [flat|nested] 25+ messages in thread
* [PATCH v2 01/47] vgacon: inline vc_scrolldelta_helper() into vgacon_scrolldelta()
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 02/47] fbcon: make display_desc a static array in fbcon_startup() Jiri Slaby (SUSE)
` (22 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, Helge Deller, linux-kernel, dri-devel, linux-serial,
Jiri Slaby (SUSE)
Since commit 74d58cd48a8f ("USB: sisusbvga: remove console support"),
vgacon_scrolldelta() is the only user of vc_scrolldelta_helper().
Inline the helper into vgacon_scrolldelta() and drop it.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/tty/vt/vt.c | 40 ----------------------------------
drivers/video/console/vgacon.c | 36 ++++++++++++++++++++++++++++--
include/linux/vt_kern.h | 3 ---
3 files changed, 34 insertions(+), 45 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 156efda7c80d..3f3f7c216819 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -4748,43 +4748,3 @@ void vcs_scr_updated(struct vc_data *vc)
{
notify_update(vc);
}
-
-void vc_scrolldelta_helper(struct vc_data *c, int lines,
- unsigned int rolled_over, void *base, unsigned int size)
-{
- unsigned long ubase = (unsigned long)base;
- ptrdiff_t scr_end = (void *)c->vc_scr_end - base;
- ptrdiff_t vorigin = (void *)c->vc_visible_origin - base;
- ptrdiff_t origin = (void *)c->vc_origin - base;
- int margin = c->vc_size_row * 4;
- int from, wrap, from_off, avail;
-
- /* Turn scrollback off */
- if (!lines) {
- c->vc_visible_origin = c->vc_origin;
- return;
- }
-
- /* Do we have already enough to allow jumping from 0 to the end? */
- if (rolled_over > scr_end + margin) {
- from = scr_end;
- wrap = rolled_over + c->vc_size_row;
- } else {
- from = 0;
- wrap = size;
- }
-
- from_off = (vorigin - from + wrap) % wrap + lines * c->vc_size_row;
- avail = (origin - from + wrap) % wrap;
-
- /* Only a little piece would be left? Show all incl. the piece! */
- if (avail < 2 * margin)
- margin = 0;
- if (from_off < margin)
- from_off = 0;
- if (from_off > avail - margin)
- from_off = avail;
-
- c->vc_visible_origin = ubase + (from + from_off) % wrap;
-}
-EXPORT_SYMBOL_GPL(vc_scrolldelta_helper);
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 8ef1579fa57f..9176fff9ce6e 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -138,8 +138,40 @@ static inline void vga_set_mem_top(struct vc_data *c)
static void vgacon_scrolldelta(struct vc_data *c, int lines)
{
- vc_scrolldelta_helper(c, lines, vga_rolled_over, (void *)vga_vram_base,
- vga_vram_size);
+ unsigned long scr_end = c->vc_scr_end - vga_vram_base;
+ unsigned long vorigin = c->vc_visible_origin - vga_vram_base;
+ unsigned long origin = c->vc_origin - vga_vram_base;
+ int margin = c->vc_size_row * 4;
+ int from, wrap, from_off, avail;
+
+ /* Turn scrollback off */
+ if (!lines) {
+ c->vc_visible_origin = c->vc_origin;
+ return;
+ }
+
+ /* Do we have already enough to allow jumping from 0 to the end? */
+ if (vga_rolled_over > scr_end + margin) {
+ from = scr_end;
+ wrap = vga_rolled_over + c->vc_size_row;
+ } else {
+ from = 0;
+ wrap = vga_vram_size;
+ }
+
+ from_off = (vorigin - from + wrap) % wrap + lines * c->vc_size_row;
+ avail = (origin - from + wrap) % wrap;
+
+ /* Only a little piece would be left? Show all incl. the piece! */
+ if (avail < 2 * margin)
+ margin = 0;
+ if (from_off < margin)
+ from_off = 0;
+ if (from_off > avail - margin)
+ from_off = avail;
+
+ c->vc_visible_origin = vga_vram_base + (from + from_off) % wrap;
+
vga_set_mem_top(c);
}
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index c1f5aebef170..a789ea3ed2a0 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -168,7 +168,4 @@ void vt_set_led_state(unsigned int console, int leds);
void vt_kbd_con_start(unsigned int console);
void vt_kbd_con_stop(unsigned int console);
-void vc_scrolldelta_helper(struct vc_data *c, int lines,
- unsigned int rolled_over, void *_base, unsigned int size);
-
#endif /* _VT_KERN_H */
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 02/47] fbcon: make display_desc a static array in fbcon_startup()
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 01/47] vgacon: inline vc_scrolldelta_helper() into vgacon_scrolldelta() Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 07/47] tty: vt: pass vc_resize_user as a parameter Jiri Slaby (SUSE)
` (21 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, Helge Deller, linux-kernel, dri-devel,
Daniel Vetter, Jiri Slaby (SUSE)
display_desc is a pointer to a RO string. Instead, switch display_desc
to a static array as we are used to. It BTW saves unnecessary 8B on the
stack.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/video/fbdev/core/fbcon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 63af6ab034b5..a8c32cb4c878 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -921,7 +921,7 @@ static void display_to_var(struct fb_var_screeninfo *var,
static const char *fbcon_startup(void)
{
- const char *display_desc = "frame buffer device";
+ static const char display_desc[] = "frame buffer device";
struct fbcon_display *p = &fb_display[fg_console];
struct vc_data *vc = vc_cons[fg_console].d;
const struct font_desc *font = NULL;
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 07/47] tty: vt: pass vc_resize_user as a parameter
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 01/47] vgacon: inline vc_scrolldelta_helper() into vgacon_scrolldelta() Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 02/47] fbcon: make display_desc a static array in fbcon_startup() Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 19/47] tty: vt: make consw::con_debug_*() return void Jiri Slaby (SUSE)
` (20 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, Helge Deller, linux-kernel, dri-devel,
Daniel Vetter, Jiri Slaby (SUSE)
It is pretty unfortunate to set vc_data::vc_resize_user in two callers
of vc_do_resize(). vc_resize_user is immediately reset there (while
remembering it). So instead of this back and forth, pass 'from_user' as
a parameter.
Notes on 'int user':
* The name changes from 'user' to 'from_user' on some places to be
consistent.
* The type is bool now as 'int user' might evoke user's uid or whatever.
Provided vc_resize() is called on many places and they need not to care
about this parameter, its prototype is kept unchanged. Instead, it is
now an inline calling a new __vc_resize() which implements the above.
This patch makes the situation much more obvious.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/tty/vt/vt.c | 28 +++++++++++++---------------
drivers/tty/vt/vt_ioctl.c | 6 ++----
drivers/video/console/vgacon.c | 4 ++--
drivers/video/fbdev/core/fbcon.c | 2 +-
include/linux/console.h | 2 +-
include/linux/console_struct.h | 1 -
include/linux/vt_kern.h | 9 ++++++++-
7 files changed, 27 insertions(+), 25 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 3a6f60ad2224..c87837306074 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1115,13 +1115,13 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */
}
static inline int resize_screen(struct vc_data *vc, int width, int height,
- int user)
+ bool from_user)
{
/* Resizes the resolution of the display adapater */
int err = 0;
if (vc->vc_sw->con_resize)
- err = vc->vc_sw->con_resize(vc, width, height, user);
+ err = vc->vc_sw->con_resize(vc, width, height, from_user);
return err;
}
@@ -1132,6 +1132,7 @@ static inline int resize_screen(struct vc_data *vc, int width, int height,
* @vc: virtual console private data
* @cols: columns
* @lines: lines
+ * @from_user: invoked by a user?
*
* Resize a virtual console, clipping according to the actual constraints.
* If the caller passes a tty structure then update the termios winsize
@@ -1142,21 +1143,17 @@ static inline int resize_screen(struct vc_data *vc, int width, int height,
*/
static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
- unsigned int cols, unsigned int lines)
+ unsigned int cols, unsigned int lines, bool from_user)
{
unsigned long old_origin, new_origin, new_scr_end, rlth, rrem, err = 0;
unsigned long end;
unsigned int old_rows, old_row_size, first_copied_row;
unsigned int new_cols, new_rows, new_row_size, new_screen_size;
- unsigned int user;
unsigned short *oldscreen, *newscreen;
u32 **new_uniscr = NULL;
WARN_CONSOLE_UNLOCKED();
- user = vc->vc_resize_user;
- vc->vc_resize_user = 0;
-
if (cols > VC_MAXCOL || lines > VC_MAXROW)
return -EINVAL;
@@ -1182,7 +1179,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
* to deal with possible errors from the code below, we call
* the resize_screen here as well.
*/
- return resize_screen(vc, new_cols, new_rows, user);
+ return resize_screen(vc, new_cols, new_rows, from_user);
}
if (new_screen_size > KMALLOC_MAX_SIZE || !new_screen_size)
@@ -1205,7 +1202,7 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
old_rows = vc->vc_rows;
old_row_size = vc->vc_size_row;
- err = resize_screen(vc, new_cols, new_rows, user);
+ err = resize_screen(vc, new_cols, new_rows, from_user);
if (err) {
kfree(newscreen);
vc_uniscr_free(new_uniscr);
@@ -1292,22 +1289,23 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
}
/**
- * vc_resize - resize a VT
+ * __vc_resize - resize a VT
* @vc: virtual console
* @cols: columns
* @rows: rows
+ * @from_user: invoked by a user?
*
* Resize a virtual console as seen from the console end of things. We
* use the common vc_do_resize methods to update the structures. The
* caller must hold the console sem to protect console internals and
* vc->port.tty
*/
-
-int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int rows)
+int __vc_resize(struct vc_data *vc, unsigned int cols, unsigned int rows,
+ bool from_user)
{
- return vc_do_resize(vc->port.tty, vc, cols, rows);
+ return vc_do_resize(vc->port.tty, vc, cols, rows, from_user);
}
-EXPORT_SYMBOL(vc_resize);
+EXPORT_SYMBOL(__vc_resize);
/**
* vt_resize - resize a VT
@@ -1327,7 +1325,7 @@ static int vt_resize(struct tty_struct *tty, struct winsize *ws)
int ret;
console_lock();
- ret = vc_do_resize(tty, vc, ws->ws_col, ws->ws_row);
+ ret = vc_do_resize(tty, vc, ws->ws_col, ws->ws_row, false);
console_unlock();
return ret;
}
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 8c685b501404..4b91072f3a4e 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -714,8 +714,7 @@ static int vt_resizex(struct vc_data *vc, struct vt_consize __user *cs)
vcp->vc_scan_lines = v.v_vlin;
if (v.v_clin)
vcp->vc_cell_height = v.v_clin;
- vcp->vc_resize_user = 1;
- ret = vc_resize(vcp, v.v_cols, v.v_rows);
+ ret = __vc_resize(vcp, v.v_cols, v.v_rows, true);
if (ret) {
vcp->vc_scan_lines = save_scan_lines;
vcp->vc_cell_height = save_cell_height;
@@ -923,9 +922,8 @@ int vt_ioctl(struct tty_struct *tty,
vc = vc_cons[i].d;
if (vc) {
- vc->vc_resize_user = 1;
/* FIXME: review v tty lock */
- vc_resize(vc_cons[i].d, cc, ll);
+ __vc_resize(vc_cons[i].d, cc, ll, true);
}
}
console_unlock();
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 9176fff9ce6e..0c76e2817b49 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1081,12 +1081,12 @@ static int vgacon_font_get(struct vc_data *c, struct console_font *font, unsigne
}
static int vgacon_resize(struct vc_data *c, unsigned int width,
- unsigned int height, unsigned int user)
+ unsigned int height, bool from_user)
{
if ((width << 1) * height > vga_vram_size)
return -EINVAL;
- if (user) {
+ if (from_user) {
/*
* Ho ho! Someone (svgatextmode, eh?) may have reprogrammed
* the video mode! Set the new defaults then and go away.
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index a8c32cb4c878..dd2f4617485c 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1996,7 +1996,7 @@ static void updatescrollmode(struct fbcon_display *p,
#define CALC_FONTSZ(h, p, c) ((h) * (p) * (c)) /* size = height * pitch * charcount */
static int fbcon_resize(struct vc_data *vc, unsigned int width,
- unsigned int height, unsigned int user)
+ unsigned int height, bool from_user)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
struct fbcon_ops *ops = info->fbcon_par;
diff --git a/include/linux/console.h b/include/linux/console.h
index 779d388af8a0..38b379d6c624 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -66,7 +66,7 @@ struct consw {
int (*con_font_default)(struct vc_data *vc,
struct console_font *font, char *name);
int (*con_resize)(struct vc_data *vc, unsigned int width,
- unsigned int height, unsigned int user);
+ unsigned int height, bool from_user);
void (*con_set_palette)(struct vc_data *vc,
const unsigned char *table);
void (*con_scrolldelta)(struct vc_data *vc, int lines);
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
index 539f1cd45309..20f564e98552 100644
--- a/include/linux/console_struct.h
+++ b/include/linux/console_struct.h
@@ -151,7 +151,6 @@ struct vc_data {
DECLARE_BITMAP(vc_tab_stop, VC_TABSTOPS_COUNT); /* Tab stops. 256 columns. */
unsigned char vc_palette[16*3]; /* Colour palette for VGA+ */
unsigned short * vc_translate;
- unsigned int vc_resize_user; /* resize request from user */
unsigned int vc_bell_pitch; /* Console bell pitch */
unsigned int vc_bell_duration; /* Console bell duration */
unsigned short vc_cur_blink_ms; /* Cursor blink duration */
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index a789ea3ed2a0..d008c3d0a9bb 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -25,7 +25,8 @@ extern int fg_console, last_console, want_console;
int vc_allocate(unsigned int console);
int vc_cons_allocated(unsigned int console);
-int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines);
+int __vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines,
+ bool from_user);
struct vc_data *vc_deallocate(unsigned int console);
void reset_palette(struct vc_data *vc);
void do_blank_screen(int entering_gfx);
@@ -42,6 +43,12 @@ void redraw_screen(struct vc_data *vc, int is_switch);
#define update_screen(x) redraw_screen(x, 0)
#define switch_screen(x) redraw_screen(x, 1)
+static inline int vc_resize(struct vc_data *vc, unsigned int cols,
+ unsigned int lines)
+{
+ return __vc_resize(vc, cols, lines, false);
+}
+
struct tty_struct;
int tioclinux(struct tty_struct *tty, unsigned long arg);
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 19/47] tty: vt: make consw::con_debug_*() return void
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (2 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 07/47] tty: vt: pass vc_resize_user as a parameter Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 20/47] tty: vt: make init parameter of consw::con_init() a bool Jiri Slaby (SUSE)
` (19 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, Helge Deller, linux-kernel, dri-devel,
Daniel Vetter, Jiri Slaby (SUSE)
The return value of con_debug_enter() and con_debug_leave() is ignored
on many fronts. So just don't propagate errors (the current
implementations return 0 anyway) and make the return type a void.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/tty/vt/vt.c | 21 ++++-----------------
drivers/video/fbdev/core/fbcon.c | 6 ++----
include/linux/console.h | 18 ++++++------------
3 files changed, 12 insertions(+), 33 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 51a2787415db..bbfda0d33ca1 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -4012,15 +4012,9 @@ EXPORT_SYMBOL(con_is_visible);
* Called when the console is taken over by the kernel debugger, this
* function needs to save the current console state, then put the console
* into a state suitable for the kernel debugger.
- *
- * RETURNS:
- * Zero on success, nonzero if a failure occurred when trying to prepare
- * the console for the debugger.
*/
-int con_debug_enter(struct vc_data *vc)
+void con_debug_enter(struct vc_data *vc)
{
- int ret = 0;
-
saved_fg_console = fg_console;
saved_last_console = last_console;
saved_want_console = want_console;
@@ -4029,7 +4023,7 @@ int con_debug_enter(struct vc_data *vc)
vc->vc_mode = KD_TEXT;
console_blanked = 0;
if (vc->vc_sw->con_debug_enter)
- ret = vc->vc_sw->con_debug_enter(vc);
+ vc->vc_sw->con_debug_enter(vc);
#ifdef CONFIG_KGDB_KDB
/* Set the initial LINES variable if it is not already set */
if (vc->vc_rows < 999) {
@@ -4059,7 +4053,6 @@ int con_debug_enter(struct vc_data *vc)
}
}
#endif /* CONFIG_KGDB_KDB */
- return ret;
}
EXPORT_SYMBOL_GPL(con_debug_enter);
@@ -4068,15 +4061,10 @@ EXPORT_SYMBOL_GPL(con_debug_enter);
*
* Restore the console state to what it was before the kernel debugger
* was invoked.
- *
- * RETURNS:
- * Zero on success, nonzero if a failure occurred when trying to restore
- * the console.
*/
-int con_debug_leave(void)
+void con_debug_leave(void)
{
struct vc_data *vc;
- int ret = 0;
fg_console = saved_fg_console;
last_console = saved_last_console;
@@ -4086,8 +4074,7 @@ int con_debug_leave(void)
vc = vc_cons[fg_console].d;
if (vc->vc_sw->con_debug_leave)
- ret = vc->vc_sw->con_debug_leave(vc);
- return ret;
+ vc->vc_sw->con_debug_leave(vc);
}
EXPORT_SYMBOL_GPL(con_debug_leave);
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index dd2f4617485c..d3fb98084eda 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2243,7 +2243,7 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
return 0;
}
-static int fbcon_debug_enter(struct vc_data *vc)
+static void fbcon_debug_enter(struct vc_data *vc)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
struct fbcon_ops *ops = info->fbcon_par;
@@ -2253,10 +2253,9 @@ static int fbcon_debug_enter(struct vc_data *vc)
if (info->fbops->fb_debug_enter)
info->fbops->fb_debug_enter(info);
fbcon_set_palette(vc, color_table);
- return 0;
}
-static int fbcon_debug_leave(struct vc_data *vc)
+static void fbcon_debug_leave(struct vc_data *vc)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
struct fbcon_ops *ops = info->fbcon_par;
@@ -2264,7 +2263,6 @@ static int fbcon_debug_leave(struct vc_data *vc)
ops->graphics = ops->save_graphics;
if (info->fbops->fb_debug_leave)
info->fbops->fb_debug_leave(info);
- return 0;
}
static int fbcon_get_font(struct vc_data *vc, struct console_font *font, unsigned int vpitch)
diff --git a/include/linux/console.h b/include/linux/console.h
index 38b379d6c624..93a1db5bf3b5 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -88,11 +88,11 @@ struct consw {
* limited to, unblanking the console, loading an appropriate
* palette, and allowing debugger generated output.
*/
- int (*con_debug_enter)(struct vc_data *vc);
+ void (*con_debug_enter)(struct vc_data *vc);
/*
* Restore the console to its pre-debug state as closely as possible.
*/
- int (*con_debug_leave)(struct vc_data *vc);
+ void (*con_debug_leave)(struct vc_data *vc);
};
extern const struct consw *conswitchp;
@@ -113,17 +113,11 @@ int do_unregister_con_driver(const struct consw *csw);
int do_take_over_console(const struct consw *sw, int first, int last, int deflt);
void give_up_console(const struct consw *sw);
#ifdef CONFIG_HW_CONSOLE
-int con_debug_enter(struct vc_data *vc);
-int con_debug_leave(void);
+void con_debug_enter(struct vc_data *vc);
+void con_debug_leave(void);
#else
-static inline int con_debug_enter(struct vc_data *vc)
-{
- return 0;
-}
-static inline int con_debug_leave(void)
-{
- return 0;
-}
+static inline void con_debug_enter(struct vc_data *vc) { }
+static inline void con_debug_leave(void) { }
#endif
/* cursor */
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 20/47] tty: vt: make init parameter of consw::con_init() a bool
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (3 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 19/47] tty: vt: make consw::con_debug_*() return void Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 21/47] tty: vt: sanitize arguments of consw::con_clear() Jiri Slaby (SUSE)
` (18 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, Daniel Vetter, Geert Uytterhoeven, Helge Deller,
linux-kernel, dri-devel, James E.J. Bottomley, linux-parisc,
linux-serial, Jiri Slaby (SUSE)
The 'init' parameter of consw::con_init() is true for the first call of
the hook on a particular console. So make the parameter a bool.
And document the hook.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
Notes:
[v2] fix up the comment (Geert)
drivers/tty/vt/vt.c | 8 ++++----
drivers/video/console/dummycon.c | 2 +-
drivers/video/console/mdacon.c | 2 +-
drivers/video/console/newport_con.c | 2 +-
drivers/video/console/sticon.c | 2 +-
drivers/video/console/vgacon.c | 4 ++--
drivers/video/fbdev/core/fbcon.c | 2 +-
include/linux/console.h | 4 +++-
8 files changed, 14 insertions(+), 12 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index bbfda0d33ca1..fcb41c8724f3 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -999,7 +999,7 @@ int vc_cons_allocated(unsigned int i)
return (i < MAX_NR_CONSOLES && vc_cons[i].d);
}
-static void visual_init(struct vc_data *vc, int num, int init)
+static void visual_init(struct vc_data *vc, int num, bool init)
{
/* ++Geert: vc->vc_sw->con_init determines console size */
if (vc->vc_sw)
@@ -1083,7 +1083,7 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */
vc->port.ops = &vc_port_ops;
INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
- visual_init(vc, currcons, 1);
+ visual_init(vc, currcons, true);
if (!*vc->uni_pagedict_loc)
con_set_default_unimap(vc);
@@ -3513,7 +3513,7 @@ static int __init con_init(void)
vc_cons[currcons].d = vc = kzalloc(sizeof(struct vc_data), GFP_NOWAIT);
INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
tty_port_init(&vc->port);
- visual_init(vc, currcons, 1);
+ visual_init(vc, currcons, true);
/* Assuming vc->vc_{cols,rows,screenbuf_size} are sane here. */
vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_NOWAIT);
vc_init(vc, currcons || !vc->vc_sw->con_save_screen);
@@ -3682,7 +3682,7 @@ static int do_bind_con_driver(const struct consw *csw, int first, int last,
old_was_color = vc->vc_can_do_color;
vc->vc_sw->con_deinit(vc);
vc->vc_origin = (unsigned long)vc->vc_screenbuf;
- visual_init(vc, i, 0);
+ visual_init(vc, i, false);
set_origin(vc);
update_attr(vc);
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 14af5d9e13b0..f2cef9d9a4b5 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -98,7 +98,7 @@ static const char *dummycon_startup(void)
return "dummy device";
}
-static void dummycon_init(struct vc_data *vc, int init)
+static void dummycon_init(struct vc_data *vc, bool init)
{
vc->vc_can_do_color = 1;
if (init) {
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index ef29b321967f..c5b255c96879 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -352,7 +352,7 @@ static const char *mdacon_startup(void)
return "MDA-2";
}
-static void mdacon_init(struct vc_data *c, int init)
+static void mdacon_init(struct vc_data *c, bool init)
{
c->vc_complement_mask = 0x0800; /* reverse video */
c->vc_display_fg = &mda_display_fg;
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index e8e4f82cd4a1..12c64ef47087 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -324,7 +324,7 @@ static const char *newport_startup(void)
return NULL;
}
-static void newport_init(struct vc_data *vc, int init)
+static void newport_init(struct vc_data *vc, bool init)
{
int cols, rows;
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 992a4fa431aa..0bfeabc3f7c7 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -273,7 +273,7 @@ static int sticon_font_set(struct vc_data *vc, struct console_font *font,
return sticon_set_font(vc, font, vpitch);
}
-static void sticon_init(struct vc_data *c, int init)
+static void sticon_init(struct vc_data *c, bool init)
{
struct sti_struct *sti = sticon_sti;
int vc_cols, vc_rows;
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 0c76e2817b49..5d523753def8 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -367,7 +367,7 @@ static const char *vgacon_startup(void)
return display_desc;
}
-static void vgacon_init(struct vc_data *c, int init)
+static void vgacon_init(struct vc_data *c, bool init)
{
struct uni_pagedict *p;
@@ -384,7 +384,7 @@ static void vgacon_init(struct vc_data *c, int init)
c->vc_scan_lines = vga_scan_lines;
c->vc_font.height = c->vc_cell_height = vga_video_font_height;
- /* set dimensions manually if init != 0 since vc_resize() will fail */
+ /* set dimensions manually if init is true since vc_resize() will fail */
if (init) {
c->vc_cols = vga_video_num_columns;
c->vc_rows = vga_video_num_lines;
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index d3fb98084eda..939c5d893dfb 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -988,7 +988,7 @@ static const char *fbcon_startup(void)
return display_desc;
}
-static void fbcon_init(struct vc_data *vc, int init)
+static void fbcon_init(struct vc_data *vc, bool init)
{
struct fb_info *info;
struct fbcon_ops *ops;
diff --git a/include/linux/console.h b/include/linux/console.h
index 93a1db5bf3b5..fc9450e0c78f 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -36,6 +36,8 @@ enum vc_intensity;
/**
* struct consw - callbacks for consoles
*
+ * @con_init: initialize the console on @vc. @init is true for the very first
+ * call on this @vc.
* @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
* Return true if no generic handling should be done.
* Invoked by csi_M and printing to the console.
@@ -46,7 +48,7 @@ enum vc_intensity;
struct consw {
struct module *owner;
const char *(*con_startup)(void);
- void (*con_init)(struct vc_data *vc, int init);
+ void (*con_init)(struct vc_data *vc, bool init);
void (*con_deinit)(struct vc_data *vc);
void (*con_clear)(struct vc_data *vc, int sy, int sx, int height,
int width);
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 21/47] tty: vt: sanitize arguments of consw::con_clear()
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (4 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 20/47] tty: vt: make init parameter of consw::con_init() a bool Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 22/47] tty: vt: remove checks for count in consw::con_clear() implementations Jiri Slaby (SUSE)
` (17 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, linux-parisc, Helge Deller,
linux-kernel, dri-devel, James E.J. Bottomley, Daniel Vetter,
Jiri Slaby (SUSE)
In consw::con_clear():
* Height is always 1, so drop it.
* Offsets and width are always unsigned values, so re-type them as such.
This needs a new __fbcon_clear() in the fbcon code to still handle
height which might not be 1 when called internally.
Note that tests for negative count/width are left in place -- they are
taken care of in the next patches.
And document the hook.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
drivers/tty/vt/vt.c | 2 +-
drivers/video/console/dummycon.c | 4 ++--
drivers/video/console/mdacon.c | 15 +++++---------
drivers/video/console/newport_con.c | 6 +++---
drivers/video/console/sticon.c | 8 ++++----
drivers/video/console/vgacon.c | 4 ++--
drivers/video/fbdev/core/fbcon.c | 32 +++++++++++++++++------------
include/linux/console.h | 5 +++--
8 files changed, 39 insertions(+), 37 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index fcb41c8724f3..b6f1449421bc 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1585,7 +1585,7 @@ static void csi_X(struct vc_data *vc)
vc_uniscr_clear_line(vc, vc->state.x, count);
scr_memsetw((unsigned short *)vc->vc_pos, vc->vc_video_erase_char, 2 * count);
if (con_should_update(vc))
- vc->vc_sw->con_clear(vc, vc->state.y, vc->state.x, 1, count);
+ vc->vc_sw->con_clear(vc, vc->state.y, vc->state.x, count);
vc->vc_need_wrap = 0;
}
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index f2cef9d9a4b5..0a69d5c216ee 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -109,8 +109,8 @@ static void dummycon_init(struct vc_data *vc, bool init)
}
static void dummycon_deinit(struct vc_data *vc) { }
-static void dummycon_clear(struct vc_data *vc, int sy, int sx, int height,
- int width) { }
+static void dummycon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
+ unsigned int width) { }
static void dummycon_cursor(struct vc_data *vc, int mode) { }
static bool dummycon_scroll(struct vc_data *vc, unsigned int top,
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index c5b255c96879..1ddbb6cd5b0c 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -442,23 +442,18 @@ static void mdacon_putcs(struct vc_data *c, const unsigned short *s,
}
}
-static void mdacon_clear(struct vc_data *c, int y, int x,
- int height, int width)
+static void mdacon_clear(struct vc_data *c, unsigned int y, unsigned int x,
+ unsigned int width)
{
u16 *dest = mda_addr(x, y);
u16 eattr = mda_convert_attr(c->vc_video_erase_char);
- if (width <= 0 || height <= 0)
+ if (width <= 0)
return;
- if (x==0 && width==mda_num_columns) {
- scr_memsetw(dest, eattr, height*width*2);
- } else {
- for (; height > 0; height--, dest+=mda_num_columns)
- scr_memsetw(dest, eattr, width*2);
- }
+ scr_memsetw(dest, eattr, width * 2);
}
-
+
static int mdacon_switch(struct vc_data *c)
{
return 1; /* redrawing needed */
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index 12c64ef47087..55c6106b3507 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -346,12 +346,12 @@ static void newport_deinit(struct vc_data *c)
}
}
-static void newport_clear(struct vc_data *vc, int sy, int sx, int height,
- int width)
+static void newport_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
+ unsigned int width)
{
int xend = ((sx + width) << 3) - 1;
int ystart = ((sy << 4) + topscan) & 0x3ff;
- int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff;
+ int yend = (((sy + 1) << 4) + topscan - 1) & 0x3ff;
if (logo_active)
return;
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 0bfeabc3f7c7..d99c2a659bfd 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -300,13 +300,13 @@ static void sticon_deinit(struct vc_data *c)
sticon_set_def_font(i);
}
-static void sticon_clear(struct vc_data *conp, int sy, int sx, int height,
- int width)
+static void sticon_clear(struct vc_data *conp, unsigned int sy, unsigned int sx,
+ unsigned int width)
{
- if (!height || !width)
+ if (!width)
return;
- sti_clear(sticon_sti, sy, sx, height, width,
+ sti_clear(sticon_sti, sy, sx, 1, width,
conp->vc_video_erase_char, font_data[conp->vc_num]);
}
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 5d523753def8..85f29dec2c3d 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1191,8 +1191,8 @@ static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
* The console `switch' structure for the VGA based console
*/
-static void vgacon_clear(struct vc_data *vc, int sy, int sx, int height,
- int width) { }
+static void vgacon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
+ unsigned int width) { }
static void vgacon_putc(struct vc_data *vc, int c, int ypos, int xpos) { }
static void vgacon_putcs(struct vc_data *vc, const unsigned short *s,
int count, int ypos, int xpos) { }
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 939c5d893dfb..8a31a36483ea 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1235,8 +1235,8 @@ static void fbcon_deinit(struct vc_data *vc)
* restriction is simplicity & efficiency at the moment.
*/
-static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height,
- int width)
+static void __fbcon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
+ unsigned int height, unsigned int width)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
struct fbcon_ops *ops = info->fbcon_par;
@@ -1273,6 +1273,12 @@ static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height,
ops->clear(vc, info, real_y(p, sy), sx, height, width);
}
+static void fbcon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
+ unsigned int width)
+{
+ __fbcon_clear(vc, sy, sx, 1, width);
+}
+
static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
int count, int ypos, int xpos)
{
@@ -1760,7 +1766,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
case SCROLL_MOVE:
fbcon_redraw_blit(vc, info, p, t, b - t - count,
count);
- fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
scr_memsetw((unsigned short *) (vc->vc_origin +
vc->vc_size_row *
(b - count)),
@@ -1783,7 +1789,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
b - t - count, vc->vc_cols);
else
goto redraw_up;
- fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
break;
case SCROLL_PAN_REDRAW:
@@ -1801,7 +1807,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
vc->vc_rows - b, b);
} else
fbcon_redraw_move(vc, p, t + count, b - t - count, t);
- fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
break;
case SCROLL_PAN_MOVE:
@@ -1824,14 +1830,14 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
b - t - count, vc->vc_cols);
else
goto redraw_up;
- fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
break;
case SCROLL_REDRAW:
redraw_up:
fbcon_redraw(vc, t, b - t - count,
count * vc->vc_cols);
- fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, b - count, 0, count, vc->vc_cols);
scr_memsetw((unsigned short *) (vc->vc_origin +
vc->vc_size_row *
(b - count)),
@@ -1848,7 +1854,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
case SCROLL_MOVE:
fbcon_redraw_blit(vc, info, p, b - 1, b - t - count,
-count);
- fbcon_clear(vc, t, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, t, 0, count, vc->vc_cols);
scr_memsetw((unsigned short *) (vc->vc_origin +
vc->vc_size_row *
t),
@@ -1871,7 +1877,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
b - t - count, vc->vc_cols);
else
goto redraw_down;
- fbcon_clear(vc, t, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, t, 0, count, vc->vc_cols);
break;
case SCROLL_PAN_MOVE:
@@ -1893,7 +1899,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
b - t - count, vc->vc_cols);
else
goto redraw_down;
- fbcon_clear(vc, t, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, t, 0, count, vc->vc_cols);
break;
case SCROLL_PAN_REDRAW:
@@ -1910,14 +1916,14 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
fbcon_redraw_move(vc, p, count, t, 0);
} else
fbcon_redraw_move(vc, p, t, b - t - count, t + count);
- fbcon_clear(vc, t, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, t, 0, count, vc->vc_cols);
break;
case SCROLL_REDRAW:
redraw_down:
fbcon_redraw(vc, b - 1, b - t - count,
-count * vc->vc_cols);
- fbcon_clear(vc, t, 0, count, vc->vc_cols);
+ __fbcon_clear(vc, t, 0, count, vc->vc_cols);
scr_memsetw((unsigned short *) (vc->vc_origin +
vc->vc_size_row *
t),
@@ -2196,7 +2202,7 @@ static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info,
oldc = vc->vc_video_erase_char;
vc->vc_video_erase_char &= charmask;
- fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols);
+ __fbcon_clear(vc, 0, 0, vc->vc_rows, vc->vc_cols);
vc->vc_video_erase_char = oldc;
}
}
diff --git a/include/linux/console.h b/include/linux/console.h
index fc9450e0c78f..8fd96a5fca5f 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -38,6 +38,7 @@ enum vc_intensity;
*
* @con_init: initialize the console on @vc. @init is true for the very first
* call on this @vc.
+ * @con_clear: erase @count characters at [@x, @y] on @vc. @count >= 1.
* @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
* Return true if no generic handling should be done.
* Invoked by csi_M and printing to the console.
@@ -50,8 +51,8 @@ struct consw {
const char *(*con_startup)(void);
void (*con_init)(struct vc_data *vc, bool init);
void (*con_deinit)(struct vc_data *vc);
- void (*con_clear)(struct vc_data *vc, int sy, int sx, int height,
- int width);
+ void (*con_clear)(struct vc_data *vc, unsigned int y,
+ unsigned int x, unsigned int count);
void (*con_putc)(struct vc_data *vc, int c, int ypos, int xpos);
void (*con_putcs)(struct vc_data *vc, const unsigned short *s,
int count, int ypos, int xpos);
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 22/47] tty: vt: remove checks for count in consw::con_clear() implementations
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (5 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 21/47] tty: vt: sanitize arguments of consw::con_clear() Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 24/47] tty: vt: eliminate unneeded consw::con_putc() implementations Jiri Slaby (SUSE)
` (16 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-parisc, Helge Deller, linux-kernel, dri-devel,
James E.J. Bottomley, linux-serial, Jiri Slaby (SUSE)
'count' in consw::con_clear() is guaranteed to be positive. csi_X() (the
only caller) takes the minimum of the vc parameter (which is at least 1)
and count of characters till the end of the line. The latter is computed
as a subtraction of vc->vc_cols (count) and vc->state.x (offset). So for
the worst case, full line, it is 1.
Therefore, there is no point in checking zero or negative values (width
is now unsigned anyway).
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
drivers/video/console/mdacon.c | 3 ---
drivers/video/console/sticon.c | 3 ---
2 files changed, 6 deletions(-)
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 1ddbb6cd5b0c..2ff2c9394d40 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -448,9 +448,6 @@ static void mdacon_clear(struct vc_data *c, unsigned int y, unsigned int x,
u16 *dest = mda_addr(x, y);
u16 eattr = mda_convert_attr(c->vc_video_erase_char);
- if (width <= 0)
- return;
-
scr_memsetw(dest, eattr, width * 2);
}
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index d99c2a659bfd..b1d972d9a31c 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -303,9 +303,6 @@ static void sticon_deinit(struct vc_data *c)
static void sticon_clear(struct vc_data *conp, unsigned int sy, unsigned int sx,
unsigned int width)
{
- if (!width)
- return;
-
sti_clear(sticon_sti, sy, sx, 1, width,
conp->vc_video_erase_char, font_data[conp->vc_num]);
}
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 24/47] tty: vt: eliminate unneeded consw::con_putc() implementations
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (6 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 22/47] tty: vt: remove checks for count in consw::con_clear() implementations Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 25/47] tty: vt: sanitize consw::con_putc() parameters Jiri Slaby (SUSE)
` (15 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, linux-parisc, Helge Deller,
linux-kernel, dri-devel, James E.J. Bottomley, Daniel Vetter,
Jiri Slaby (SUSE)
All these consw::con_putc() implementations do the same as
consw::con_putcs() (only for one charattr) or even call
consw::con_putcs() on their own.
Drop them, as thanks to the new con_putc() helper in the previous patch,
the console code performs this already -- exactly if consw::con_putc()
is missing (NULL).
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
drivers/video/console/mdacon.c | 6 ------
drivers/video/console/sticon.c | 12 ------------
drivers/video/console/vgacon.c | 2 --
drivers/video/fbdev/core/fbcon.c | 9 ---------
4 files changed, 29 deletions(-)
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 2ff2c9394d40..01e779943c00 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -427,11 +427,6 @@ static inline u16 *mda_addr(unsigned int x, unsigned int y)
return mda_vram_base + y * mda_num_columns + x;
}
-static void mdacon_putc(struct vc_data *c, int ch, int y, int x)
-{
- scr_writew(mda_convert_attr(ch), mda_addr(x, y));
-}
-
static void mdacon_putcs(struct vc_data *c, const unsigned short *s,
int count, int y, int x)
{
@@ -536,7 +531,6 @@ static const struct consw mda_con = {
.con_init = mdacon_init,
.con_deinit = mdacon_deinit,
.con_clear = mdacon_clear,
- .con_putc = mdacon_putc,
.con_putcs = mdacon_putcs,
.con_cursor = mdacon_cursor,
.con_scroll = mdacon_scroll,
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index b1d972d9a31c..2f87b5909d0d 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -71,17 +71,6 @@ static const char *sticon_startup(void)
return "STI console";
}
-static void sticon_putc(struct vc_data *conp, int c, int ypos, int xpos)
-{
- if (vga_is_gfx || console_blanked)
- return;
-
- if (conp->vc_mode != KD_TEXT)
- return;
-
- sti_putc(sticon_sti, c, ypos, xpos, font_data[conp->vc_num]);
-}
-
static void sticon_putcs(struct vc_data *conp, const unsigned short *s,
int count, int ypos, int xpos)
{
@@ -362,7 +351,6 @@ static const struct consw sti_con = {
.con_init = sticon_init,
.con_deinit = sticon_deinit,
.con_clear = sticon_clear,
- .con_putc = sticon_putc,
.con_putcs = sticon_putcs,
.con_cursor = sticon_cursor,
.con_scroll = sticon_scroll,
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 85f29dec2c3d..4beab11f87eb 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1193,7 +1193,6 @@ static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
static void vgacon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
unsigned int width) { }
-static void vgacon_putc(struct vc_data *vc, int c, int ypos, int xpos) { }
static void vgacon_putcs(struct vc_data *vc, const unsigned short *s,
int count, int ypos, int xpos) { }
@@ -1203,7 +1202,6 @@ const struct consw vga_con = {
.con_init = vgacon_init,
.con_deinit = vgacon_deinit,
.con_clear = vgacon_clear,
- .con_putc = vgacon_putc,
.con_putcs = vgacon_putcs,
.con_cursor = vgacon_cursor,
.con_scroll = vgacon_scroll,
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 8a31a36483ea..38de0f8723aa 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1292,14 +1292,6 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
get_color(vc, info, scr_readw(s), 0));
}
-static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos)
-{
- unsigned short chr;
-
- scr_writew(c, &chr);
- fbcon_putcs(vc, &chr, 1, ypos, xpos);
-}
-
static void fbcon_clear_margins(struct vc_data *vc, int bottom_only)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
@@ -3159,7 +3151,6 @@ static const struct consw fb_con = {
.con_init = fbcon_init,
.con_deinit = fbcon_deinit,
.con_clear = fbcon_clear,
- .con_putc = fbcon_putc,
.con_putcs = fbcon_putcs,
.con_cursor = fbcon_cursor,
.con_scroll = fbcon_scroll,
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 25/47] tty: vt: sanitize consw::con_putc() parameters
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (7 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 24/47] tty: vt: eliminate unneeded consw::con_putc() implementations Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 27/47] consoles: use if instead of switch-case in consw::con_cursor() Jiri Slaby (SUSE)
` (14 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, Helge Deller, linux-kernel, dri-devel, linux-serial,
Jiri Slaby (SUSE)
Make parameters of consw::con_putc() saner:
* x and y are unsigned now, as they cannot be negative, and
* ca is made u16, as it is composed of two 8bit values (character and
attribute). See the con_putcs() hook, u16/ushort is worked on there.
And document the hook.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/video/console/dummycon.c | 6 ++++--
drivers/video/console/newport_con.c | 4 ++--
include/linux/console.h | 5 ++++-
3 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 0a69d5c216ee..1874beed0325 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -50,7 +50,8 @@ void dummycon_unregister_output_notifier(struct notifier_block *nb)
raw_notifier_chain_unregister(&dummycon_output_nh, nb);
}
-static void dummycon_putc(struct vc_data *vc, int c, int ypos, int xpos)
+static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y,
+ unsigned int x)
{
WARN_CONSOLE_UNLOCKED();
@@ -84,7 +85,8 @@ static int dummycon_blank(struct vc_data *vc, int blank, int mode_switch)
return 1;
}
#else
-static void dummycon_putc(struct vc_data *vc, int c, int ypos, int xpos) { }
+static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y,
+ unsigned int x) { }
static void dummycon_putcs(struct vc_data *vc, const unsigned short *s,
int count, int ypos, int xpos) { }
static int dummycon_blank(struct vc_data *vc, int blank, int mode_switch)
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index 55c6106b3507..9b5c0118873e 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -367,8 +367,8 @@ static void newport_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
}
}
-static void newport_putc(struct vc_data *vc, int charattr, int ypos,
- int xpos)
+static void newport_putc(struct vc_data *vc, u16 charattr, unsigned int ypos,
+ unsigned int xpos)
{
unsigned char *p;
diff --git a/include/linux/console.h b/include/linux/console.h
index 8fd96a5fca5f..92d57e5b3009 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -39,6 +39,8 @@ enum vc_intensity;
* @con_init: initialize the console on @vc. @init is true for the very first
* call on this @vc.
* @con_clear: erase @count characters at [@x, @y] on @vc. @count >= 1.
+ * @con_putc: emit one character with attributes @ca to [@x, @y] on @vc.
+ * (optional -- @con_putcs would be called instead)
* @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
* Return true if no generic handling should be done.
* Invoked by csi_M and printing to the console.
@@ -53,7 +55,8 @@ struct consw {
void (*con_deinit)(struct vc_data *vc);
void (*con_clear)(struct vc_data *vc, unsigned int y,
unsigned int x, unsigned int count);
- void (*con_putc)(struct vc_data *vc, int c, int ypos, int xpos);
+ void (*con_putc)(struct vc_data *vc, u16 ca, unsigned int y,
+ unsigned int x);
void (*con_putcs)(struct vc_data *vc, const unsigned short *s,
int count, int ypos, int xpos);
void (*con_cursor)(struct vc_data *vc, int mode);
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 27/47] consoles: use if instead of switch-case in consw::con_cursor()
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (8 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 25/47] tty: vt: sanitize consw::con_putc() parameters Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 28/47] fbdev/core: simplify cursor_state setting in fbcon_ops::cursor() Jiri Slaby (SUSE)
` (13 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, Helge Deller, linux-kernel, dri-devel, linux-serial,
Jiri Slaby (SUSE)
This is only a preparation for the following cleanup patch to make it
easier. Provided CM_ERASE is the only different, use 'if' instead of
'switch+case' in all those.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/video/console/newport_con.c | 26 +++++-------
drivers/video/console/sticon.c | 27 ++++++------
drivers/video/console/vgacon.c | 66 +++++++++++++----------------
3 files changed, 53 insertions(+), 66 deletions(-)
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index 5e65ee0b7c07..f852717b88f0 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -443,24 +443,20 @@ static void newport_cursor(struct vc_data *vc, int mode)
unsigned short treg;
int xcurs, ycurs;
- switch (mode) {
- case CM_ERASE:
- treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
- newport_vc2_set(npregs, VC2_IREG_CONTROL,
- (treg & ~(VC2_CTRL_ECDISP)));
- break;
+ treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
- case CM_MOVE:
- case CM_DRAW:
- treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
+ if (mode == CM_ERASE) {
newport_vc2_set(npregs, VC2_IREG_CONTROL,
- (treg | VC2_CTRL_ECDISP));
- xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2;
- ycurs = ((xcurs / vc->vc_cols) << 4) + 31;
- xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction;
- newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs);
- newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs);
+ (treg & ~(VC2_CTRL_ECDISP)));
+ return;
}
+
+ newport_vc2_set(npregs, VC2_IREG_CONTROL, (treg | VC2_CTRL_ECDISP));
+ xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2;
+ ycurs = ((xcurs / vc->vc_cols) << 4) + 31;
+ xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction;
+ newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs);
+ newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs);
}
static int newport_switch(struct vc_data *vc)
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 906da1fde7c8..42480874db00 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -95,23 +95,20 @@ static void sticon_cursor(struct vc_data *conp, int mode)
return;
car1 = conp->vc_screenbuf[conp->state.x + conp->state.y * conp->vc_cols];
- switch (mode) {
- case CM_ERASE:
+ if (mode == CM_ERASE) {
sti_putc(sticon_sti, car1, conp->state.y, conp->state.x,
font_data[conp->vc_num]);
- break;
- case CM_MOVE:
- case CM_DRAW:
- switch (CUR_SIZE(conp->vc_cursor_type)) {
- case CUR_UNDERLINE:
- case CUR_LOWER_THIRD:
- case CUR_LOWER_HALF:
- case CUR_TWO_THIRDS:
- case CUR_BLOCK:
- sti_putc(sticon_sti, (car1 & 255) + (0 << 8) + (7 << 11),
- conp->state.y, conp->state.x, font_data[conp->vc_num]);
- break;
- }
+ return;
+ }
+
+ switch (CUR_SIZE(conp->vc_cursor_type)) {
+ case CUR_UNDERLINE:
+ case CUR_LOWER_THIRD:
+ case CUR_LOWER_HALF:
+ case CUR_TWO_THIRDS:
+ case CUR_BLOCK:
+ sti_putc(sticon_sti, (car1 & 255) + (0 << 8) + (7 << 11),
+ conp->state.y, conp->state.x, font_data[conp->vc_num]);
break;
}
}
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index aa0589085847..82d01a9ccd6d 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -514,47 +514,41 @@ static void vgacon_cursor(struct vc_data *c, int mode)
c_height = c->vc_cell_height;
- switch (mode) {
- case CM_ERASE:
- write_vga(14, (c->vc_pos - vga_vram_base) / 2);
+ write_vga(14, (c->vc_pos - vga_vram_base) / 2);
+
+ if (mode == CM_ERASE) {
if (vga_video_type >= VIDEO_TYPE_VGAC)
vgacon_set_cursor_size(31, 30);
else
vgacon_set_cursor_size(31, 31);
- break;
+ return;
+ }
- case CM_MOVE:
- case CM_DRAW:
- write_vga(14, (c->vc_pos - vga_vram_base) / 2);
- switch (CUR_SIZE(c->vc_cursor_type)) {
- case CUR_UNDERLINE:
- vgacon_set_cursor_size(c_height -
- (c_height < 10 ? 2 : 3),
- c_height -
- (c_height < 10 ? 1 : 2));
- break;
- case CUR_TWO_THIRDS:
- vgacon_set_cursor_size(c_height / 3, c_height -
- (c_height < 10 ? 1 : 2));
- break;
- case CUR_LOWER_THIRD:
- vgacon_set_cursor_size(c_height * 2 / 3, c_height -
- (c_height < 10 ? 1 : 2));
- break;
- case CUR_LOWER_HALF:
- vgacon_set_cursor_size(c_height / 2, c_height -
- (c_height < 10 ? 1 : 2));
- break;
- case CUR_NONE:
- if (vga_video_type >= VIDEO_TYPE_VGAC)
- vgacon_set_cursor_size(31, 30);
- else
- vgacon_set_cursor_size(31, 31);
- break;
- default:
- vgacon_set_cursor_size(1, c_height);
- break;
- }
+ switch (CUR_SIZE(c->vc_cursor_type)) {
+ case CUR_UNDERLINE:
+ vgacon_set_cursor_size(c_height - (c_height < 10 ? 2 : 3),
+ c_height - (c_height < 10 ? 1 : 2));
+ break;
+ case CUR_TWO_THIRDS:
+ vgacon_set_cursor_size(c_height / 3,
+ c_height - (c_height < 10 ? 1 : 2));
+ break;
+ case CUR_LOWER_THIRD:
+ vgacon_set_cursor_size(c_height * 2 / 3,
+ c_height - (c_height < 10 ? 1 : 2));
+ break;
+ case CUR_LOWER_HALF:
+ vgacon_set_cursor_size(c_height / 2,
+ c_height - (c_height < 10 ? 1 : 2));
+ break;
+ case CUR_NONE:
+ if (vga_video_type >= VIDEO_TYPE_VGAC)
+ vgacon_set_cursor_size(31, 30);
+ else
+ vgacon_set_cursor_size(31, 31);
+ break;
+ default:
+ vgacon_set_cursor_size(1, c_height);
break;
}
}
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 28/47] fbdev/core: simplify cursor_state setting in fbcon_ops::cursor()
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (9 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 27/47] consoles: use if instead of switch-case in consw::con_cursor() Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 29/47] tty: vt: remove CM_* constants Jiri Slaby (SUSE)
` (12 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, Helge Deller, linux-kernel, dri-devel,
Daniel Vetter, Jiri Slaby (SUSE)
There is a switch decicing if cursor should be drawn or not. The whole
switch can be simplified to one line. Do this cleanup as a preparatory
work for the next patch. There, all the CM_* constants are removed.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/video/fbdev/core/bitblit.c | 11 +----------
drivers/video/fbdev/core/fbcon_ccw.c | 11 +----------
drivers/video/fbdev/core/fbcon_cw.c | 11 +----------
drivers/video/fbdev/core/fbcon_ud.c | 11 +----------
4 files changed, 4 insertions(+), 40 deletions(-)
diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c
index 8587c9da0670..daff152f4c22 100644
--- a/drivers/video/fbdev/core/bitblit.c
+++ b/drivers/video/fbdev/core/bitblit.c
@@ -348,16 +348,7 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode,
mask[i++] = msk;
}
- switch (mode) {
- case CM_ERASE:
- ops->cursor_state.enable = 0;
- break;
- case CM_DRAW:
- case CM_MOVE:
- default:
- ops->cursor_state.enable = (use_sw) ? 0 : 1;
- break;
- }
+ ops->cursor_state.enable = (mode != CM_ERASE) && !use_sw;
cursor.image.data = src;
cursor.image.fg_color = ops->cursor_state.image.fg_color;
diff --git a/drivers/video/fbdev/core/fbcon_ccw.c b/drivers/video/fbdev/core/fbcon_ccw.c
index 2789ace79634..889423d580bc 100644
--- a/drivers/video/fbdev/core/fbcon_ccw.c
+++ b/drivers/video/fbdev/core/fbcon_ccw.c
@@ -349,16 +349,7 @@ static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
kfree(tmp);
}
- switch (mode) {
- case CM_ERASE:
- ops->cursor_state.enable = 0;
- break;
- case CM_DRAW:
- case CM_MOVE:
- default:
- ops->cursor_state.enable = (use_sw) ? 0 : 1;
- break;
- }
+ ops->cursor_state.enable = (mode != CM_ERASE) && !use_sw;
cursor.image.data = src;
cursor.image.fg_color = ops->cursor_state.image.fg_color;
diff --git a/drivers/video/fbdev/core/fbcon_cw.c b/drivers/video/fbdev/core/fbcon_cw.c
index 86a254c1b2b7..a306ca5802e8 100644
--- a/drivers/video/fbdev/core/fbcon_cw.c
+++ b/drivers/video/fbdev/core/fbcon_cw.c
@@ -332,16 +332,7 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
kfree(tmp);
}
- switch (mode) {
- case CM_ERASE:
- ops->cursor_state.enable = 0;
- break;
- case CM_DRAW:
- case CM_MOVE:
- default:
- ops->cursor_state.enable = (use_sw) ? 0 : 1;
- break;
- }
+ ops->cursor_state.enable = (mode != CM_ERASE) && !use_sw;
cursor.image.data = src;
cursor.image.fg_color = ops->cursor_state.image.fg_color;
diff --git a/drivers/video/fbdev/core/fbcon_ud.c b/drivers/video/fbdev/core/fbcon_ud.c
index 23bc045769d0..f6fc458b46c7 100644
--- a/drivers/video/fbdev/core/fbcon_ud.c
+++ b/drivers/video/fbdev/core/fbcon_ud.c
@@ -372,16 +372,7 @@ static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode,
mask[i++] = ~msk;
}
- switch (mode) {
- case CM_ERASE:
- ops->cursor_state.enable = 0;
- break;
- case CM_DRAW:
- case CM_MOVE:
- default:
- ops->cursor_state.enable = (use_sw) ? 0 : 1;
- break;
- }
+ ops->cursor_state.enable = (mode != CM_ERASE) && !use_sw;
cursor.image.data = src;
cursor.image.fg_color = ops->cursor_state.image.fg_color;
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 29/47] tty: vt: remove CM_* constants
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (10 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 28/47] fbdev/core: simplify cursor_state setting in fbcon_ops::cursor() Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 30/47] tty: vt: make consw::con_switch() return a bool Jiri Slaby (SUSE)
` (11 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, linux-parisc, Helge Deller,
linux-kernel, dri-devel, James E.J. Bottomley, Daniel Vetter,
Jiri Slaby (SUSE)
There is no difference between CM_MOVE and CM_DRAW. Either of them
enables the cursor. CM_ERASE then disables cursor.
So get rid of all of them and use simple "bool enable".
Note that this propagates down to the fbcon code.
And document the hook.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
drivers/tty/vt/vt.c | 4 ++--
drivers/video/console/dummycon.c | 2 +-
drivers/video/console/mdacon.c | 4 ++--
drivers/video/console/newport_con.c | 4 ++--
drivers/video/console/sticon.c | 6 +++---
drivers/video/console/vgacon.c | 6 +++---
drivers/video/fbdev/core/bitblit.c | 4 ++--
drivers/video/fbdev/core/fbcon.c | 19 +++++++++----------
drivers/video/fbdev/core/fbcon.h | 4 ++--
drivers/video/fbdev/core/fbcon_ccw.c | 4 ++--
drivers/video/fbdev/core/fbcon_cw.c | 4 ++--
drivers/video/fbdev/core/fbcon_ud.c | 4 ++--
drivers/video/fbdev/core/tileblit.c | 4 ++--
include/linux/console.h | 8 ++------
14 files changed, 36 insertions(+), 41 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 6091ffcf93d8..e4edcaf9d0a3 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -860,7 +860,7 @@ static void hide_cursor(struct vc_data *vc)
if (vc_is_sel(vc))
clear_selection();
- vc->vc_sw->con_cursor(vc, CM_ERASE);
+ vc->vc_sw->con_cursor(vc, false);
hide_softcursor(vc);
}
@@ -873,7 +873,7 @@ static void set_cursor(struct vc_data *vc)
clear_selection();
add_softcursor(vc);
if (CUR_SIZE(vc->vc_cursor_type) != CUR_NONE)
- vc->vc_sw->con_cursor(vc, CM_DRAW);
+ vc->vc_sw->con_cursor(vc, true);
} else
hide_cursor(vc);
}
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 188d9f3e201c..1171e27edef7 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -113,7 +113,7 @@ static void dummycon_init(struct vc_data *vc, bool init)
static void dummycon_deinit(struct vc_data *vc) { }
static void dummycon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
unsigned int width) { }
-static void dummycon_cursor(struct vc_data *vc, int mode) { }
+static void dummycon_cursor(struct vc_data *vc, bool enable) { }
static bool dummycon_scroll(struct vc_data *vc, unsigned int top,
unsigned int bottom, enum con_scroll dir,
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index b8822b615b2f..bc851a1d9f4d 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -470,9 +470,9 @@ static int mdacon_blank(struct vc_data *c, int blank, int mode_switch)
}
}
-static void mdacon_cursor(struct vc_data *c, int mode)
+static void mdacon_cursor(struct vc_data *c, bool enable)
{
- if (mode == CM_ERASE) {
+ if (!enable) {
mda_set_cursor(mda_vram_len - 1);
return;
}
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index f852717b88f0..e35406dea7c7 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -438,14 +438,14 @@ static void newport_putcs(struct vc_data *vc, const u16 *s,
}
}
-static void newport_cursor(struct vc_data *vc, int mode)
+static void newport_cursor(struct vc_data *vc, bool enable)
{
unsigned short treg;
int xcurs, ycurs;
treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
- if (mode == CM_ERASE) {
+ if (!enable) {
newport_vc2_set(npregs, VC2_IREG_CONTROL,
(treg & ~(VC2_CTRL_ECDISP)));
return;
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 42480874db00..786e1b3a98ea 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -86,7 +86,7 @@ static void sticon_putcs(struct vc_data *conp, const u16 *s, unsigned int count,
}
}
-static void sticon_cursor(struct vc_data *conp, int mode)
+static void sticon_cursor(struct vc_data *conp, bool enable)
{
unsigned short car1;
@@ -95,7 +95,7 @@ static void sticon_cursor(struct vc_data *conp, int mode)
return;
car1 = conp->vc_screenbuf[conp->state.x + conp->state.y * conp->vc_cols];
- if (mode == CM_ERASE) {
+ if (!enable) {
sti_putc(sticon_sti, car1, conp->state.y, conp->state.x,
font_data[conp->vc_num]);
return;
@@ -121,7 +121,7 @@ static bool sticon_scroll(struct vc_data *conp, unsigned int t,
if (vga_is_gfx)
return false;
- sticon_cursor(conp, CM_ERASE);
+ sticon_cursor(conp, false);
switch (dir) {
case SM_UP:
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 82d01a9ccd6d..d93eb15da435 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -503,7 +503,7 @@ static void vgacon_set_cursor_size(int from, int to)
raw_spin_unlock_irqrestore(&vga_lock, flags);
}
-static void vgacon_cursor(struct vc_data *c, int mode)
+static void vgacon_cursor(struct vc_data *c, bool enable)
{
unsigned int c_height;
@@ -516,7 +516,7 @@ static void vgacon_cursor(struct vc_data *c, int mode)
write_vga(14, (c->vc_pos - vga_vram_base) / 2);
- if (mode == CM_ERASE) {
+ if (!enable) {
if (vga_video_type >= VIDEO_TYPE_VGAC)
vgacon_set_cursor_size(31, 30);
else
@@ -1030,7 +1030,7 @@ static int vgacon_adjust_height(struct vc_data *vc, unsigned fontheight)
/* void size to cause regs to be rewritten */
cursor_size_lastfrom = 0;
cursor_size_lastto = 0;
- c->vc_sw->con_cursor(c, CM_DRAW);
+ c->vc_sw->con_cursor(c, true);
}
c->vc_font.height = c->vc_cell_height = fontheight;
vc_resize(c, 0, rows); /* Adjust console size */
diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c
index daff152f4c22..3ff1b2a8659e 100644
--- a/drivers/video/fbdev/core/bitblit.c
+++ b/drivers/video/fbdev/core/bitblit.c
@@ -233,7 +233,7 @@ static void bit_clear_margins(struct vc_data *vc, struct fb_info *info,
}
}
-static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode,
+static void bit_cursor(struct vc_data *vc, struct fb_info *info, bool enable,
int fg, int bg)
{
struct fb_cursor cursor;
@@ -348,7 +348,7 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode,
mask[i++] = msk;
}
- ops->cursor_state.enable = (mode != CM_ERASE) && !use_sw;
+ ops->cursor_state.enable = enable && !use_sw;
cursor.image.data = src;
cursor.image.fg_color = ops->cursor_state.image.fg_color;
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 7a7b2ac0d7a9..c1765a6ef490 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -351,7 +351,7 @@ static void fb_flashcursor(struct work_struct *work)
struct fb_info *info;
struct vc_data *vc = NULL;
int c;
- int mode;
+ bool enable;
int ret;
/* FIXME: we should sort out the unbind locking instead */
@@ -375,9 +375,8 @@ static void fb_flashcursor(struct work_struct *work)
}
c = scr_readw((u16 *) vc->vc_pos);
- mode = (!ops->cursor_flash || ops->cursor_state.enable) ?
- CM_ERASE : CM_DRAW;
- ops->cursor(vc, info, mode, get_color(vc, info, c, 1),
+ enable = ops->cursor_flash && !ops->cursor_state.enable;
+ ops->cursor(vc, info, enable, get_color(vc, info, c, 1),
get_color(vc, info, c, 0));
console_unlock();
@@ -1301,7 +1300,7 @@ static void fbcon_clear_margins(struct vc_data *vc, int bottom_only)
ops->clear_margins(vc, info, margin_color, bottom_only);
}
-static void fbcon_cursor(struct vc_data *vc, int mode)
+static void fbcon_cursor(struct vc_data *vc, bool enable)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
struct fbcon_ops *ops = info->fbcon_par;
@@ -1317,12 +1316,12 @@ static void fbcon_cursor(struct vc_data *vc, int mode)
else
fbcon_add_cursor_work(info);
- ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1;
+ ops->cursor_flash = enable;
if (!ops->cursor)
return;
- ops->cursor(vc, info, mode, get_color(vc, info, c, 1),
+ ops->cursor(vc, info, enable, get_color(vc, info, c, 1),
get_color(vc, info, c, 0));
}
@@ -1742,7 +1741,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
if (fbcon_is_inactive(vc, info))
return true;
- fbcon_cursor(vc, CM_ERASE);
+ fbcon_cursor(vc, false);
/*
* ++Geert: Only use ywrap/ypan if the console is in text mode
@@ -2221,7 +2220,7 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
if (!fbcon_is_inactive(vc, info)) {
if (ops->blank_state != blank) {
ops->blank_state = blank;
- fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW);
+ fbcon_cursor(vc, !blank);
ops->cursor_flash = (!blank);
if (fb_blank(info, blank))
@@ -2649,7 +2648,7 @@ void fbcon_suspended(struct fb_info *info)
vc = vc_cons[ops->currcon].d;
/* Clear cursor, restore saved data */
- fbcon_cursor(vc, CM_ERASE);
+ fbcon_cursor(vc, false);
}
void fbcon_resumed(struct fb_info *info)
diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h
index 0eaf54a21151..df70ea5ec5b3 100644
--- a/drivers/video/fbdev/core/fbcon.h
+++ b/drivers/video/fbdev/core/fbcon.h
@@ -61,8 +61,8 @@ struct fbcon_ops {
int fg, int bg);
void (*clear_margins)(struct vc_data *vc, struct fb_info *info,
int color, int bottom_only);
- void (*cursor)(struct vc_data *vc, struct fb_info *info, int mode,
- int fg, int bg);
+ void (*cursor)(struct vc_data *vc, struct fb_info *info,
+ bool enable, int fg, int bg);
int (*update_start)(struct fb_info *info);
int (*rotate_font)(struct fb_info *info, struct vc_data *vc);
struct fb_var_screeninfo var; /* copy of the current fb_var_screeninfo */
diff --git a/drivers/video/fbdev/core/fbcon_ccw.c b/drivers/video/fbdev/core/fbcon_ccw.c
index 889423d580bc..f9b794ff7d39 100644
--- a/drivers/video/fbdev/core/fbcon_ccw.c
+++ b/drivers/video/fbdev/core/fbcon_ccw.c
@@ -218,7 +218,7 @@ static void ccw_clear_margins(struct vc_data *vc, struct fb_info *info,
}
}
-static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
+static void ccw_cursor(struct vc_data *vc, struct fb_info *info, bool enable,
int fg, int bg)
{
struct fb_cursor cursor;
@@ -349,7 +349,7 @@ static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
kfree(tmp);
}
- ops->cursor_state.enable = (mode != CM_ERASE) && !use_sw;
+ ops->cursor_state.enable = enable && !use_sw;
cursor.image.data = src;
cursor.image.fg_color = ops->cursor_state.image.fg_color;
diff --git a/drivers/video/fbdev/core/fbcon_cw.c b/drivers/video/fbdev/core/fbcon_cw.c
index a306ca5802e8..903f6fc174e1 100644
--- a/drivers/video/fbdev/core/fbcon_cw.c
+++ b/drivers/video/fbdev/core/fbcon_cw.c
@@ -201,7 +201,7 @@ static void cw_clear_margins(struct vc_data *vc, struct fb_info *info,
}
}
-static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
+static void cw_cursor(struct vc_data *vc, struct fb_info *info, bool enable,
int fg, int bg)
{
struct fb_cursor cursor;
@@ -332,7 +332,7 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
kfree(tmp);
}
- ops->cursor_state.enable = (mode != CM_ERASE) && !use_sw;
+ ops->cursor_state.enable = enable && !use_sw;
cursor.image.data = src;
cursor.image.fg_color = ops->cursor_state.image.fg_color;
diff --git a/drivers/video/fbdev/core/fbcon_ud.c b/drivers/video/fbdev/core/fbcon_ud.c
index f6fc458b46c7..594331936fd3 100644
--- a/drivers/video/fbdev/core/fbcon_ud.c
+++ b/drivers/video/fbdev/core/fbcon_ud.c
@@ -248,7 +248,7 @@ static void ud_clear_margins(struct vc_data *vc, struct fb_info *info,
}
}
-static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode,
+static void ud_cursor(struct vc_data *vc, struct fb_info *info, bool enable,
int fg, int bg)
{
struct fb_cursor cursor;
@@ -372,7 +372,7 @@ static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode,
mask[i++] = ~msk;
}
- ops->cursor_state.enable = (mode != CM_ERASE) && !use_sw;
+ ops->cursor_state.enable = enable && !use_sw;
cursor.image.data = src;
cursor.image.fg_color = ops->cursor_state.image.fg_color;
diff --git a/drivers/video/fbdev/core/tileblit.c b/drivers/video/fbdev/core/tileblit.c
index 2768eff247ba..eff7ec4da167 100644
--- a/drivers/video/fbdev/core/tileblit.c
+++ b/drivers/video/fbdev/core/tileblit.c
@@ -79,7 +79,7 @@ static void tile_clear_margins(struct vc_data *vc, struct fb_info *info,
return;
}
-static void tile_cursor(struct vc_data *vc, struct fb_info *info, int mode,
+static void tile_cursor(struct vc_data *vc, struct fb_info *info, bool enable,
int fg, int bg)
{
struct fb_tilecursor cursor;
@@ -87,7 +87,7 @@ static void tile_cursor(struct vc_data *vc, struct fb_info *info, int mode,
cursor.sx = vc->state.x;
cursor.sy = vc->state.y;
- cursor.mode = (mode == CM_ERASE || use_sw) ? 0 : 1;
+ cursor.mode = enable && !use_sw;
cursor.fg = fg;
cursor.bg = bg;
diff --git a/include/linux/console.h b/include/linux/console.h
index 82d55764a66f..a6a46b5efd66 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -42,6 +42,7 @@ enum vc_intensity;
* @con_putc: emit one character with attributes @ca to [@x, @y] on @vc.
* (optional -- @con_putcs would be called instead)
* @con_putcs: emit @count characters with attributes @s to [@x, @y] on @vc.
+ * @con_cursor: enable/disable cursor depending on @enable
* @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
* Return true if no generic handling should be done.
* Invoked by csi_M and printing to the console.
@@ -61,7 +62,7 @@ struct consw {
void (*con_putcs)(struct vc_data *vc, const u16 *s,
unsigned int count, unsigned int ypos,
unsigned int xpos);
- void (*con_cursor)(struct vc_data *vc, int mode);
+ void (*con_cursor)(struct vc_data *vc, bool enable);
bool (*con_scroll)(struct vc_data *vc, unsigned int top,
unsigned int bottom, enum con_scroll dir,
unsigned int lines);
@@ -128,11 +129,6 @@ static inline void con_debug_enter(struct vc_data *vc) { }
static inline void con_debug_leave(void) { }
#endif
-/* cursor */
-#define CM_DRAW (1)
-#define CM_ERASE (2)
-#define CM_MOVE (3)
-
/*
* The interface for a console, or any other device that wants to capture
* console messages (printer driver?)
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 30/47] tty: vt: make consw::con_switch() return a bool
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (11 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 29/47] tty: vt: remove CM_* constants Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 31/47] tty: vt: stop using -1 for blank mode in consw::con_blank() Jiri Slaby (SUSE)
` (10 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, linux-parisc, Helge Deller,
linux-kernel, dri-devel, James E.J. Bottomley, Daniel Vetter,
Jiri Slaby (SUSE)
The non-zero (true) return value from consw::con_switch() means a redraw
is needed. So make this return type a bool explicitly instead of int.
The latter might imply that -Eerrors are expected. They are not.
And document the hook.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
drivers/tty/vt/vt.c | 2 +-
drivers/video/console/dummycon.c | 4 ++--
drivers/video/console/mdacon.c | 4 ++--
drivers/video/console/newport_con.c | 4 ++--
drivers/video/console/sticon.c | 4 ++--
drivers/video/console/vgacon.c | 4 ++--
drivers/video/fbdev/core/fbcon.c | 6 +++---
include/linux/console.h | 4 +++-
8 files changed, 17 insertions(+), 15 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index e4edcaf9d0a3..fd868046f586 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -970,7 +970,7 @@ void redraw_screen(struct vc_data *vc, int is_switch)
}
if (redraw) {
- int update;
+ bool update;
int old_was_color = vc->vc_can_do_color;
set_origin(vc);
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index 1171e27edef7..c8d5aa0e3ed0 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -122,9 +122,9 @@ static bool dummycon_scroll(struct vc_data *vc, unsigned int top,
return false;
}
-static int dummycon_switch(struct vc_data *vc)
+static bool dummycon_switch(struct vc_data *vc)
{
- return 0;
+ return false;
}
/*
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index bc851a1d9f4d..4485ef923bb3 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -446,9 +446,9 @@ static void mdacon_clear(struct vc_data *c, unsigned int y, unsigned int x,
scr_memsetw(dest, eattr, width * 2);
}
-static int mdacon_switch(struct vc_data *c)
+static bool mdacon_switch(struct vc_data *c)
{
- return 1; /* redrawing needed */
+ return true; /* redrawing needed */
}
static int mdacon_blank(struct vc_data *c, int blank, int mode_switch)
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index e35406dea7c7..039d1c9937d2 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -459,7 +459,7 @@ static void newport_cursor(struct vc_data *vc, bool enable)
newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs);
}
-static int newport_switch(struct vc_data *vc)
+static bool newport_switch(struct vc_data *vc)
{
static int logo_drawn = 0;
@@ -473,7 +473,7 @@ static int newport_switch(struct vc_data *vc)
}
}
- return 1;
+ return true;
}
static int newport_blank(struct vc_data *c, int blank, int mode_switch)
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 786e1b3a98ea..f3bb48a0e980 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -293,9 +293,9 @@ static void sticon_clear(struct vc_data *conp, unsigned int sy, unsigned int sx,
conp->vc_video_erase_char, font_data[conp->vc_num]);
}
-static int sticon_switch(struct vc_data *conp)
+static bool sticon_switch(struct vc_data *conp)
{
- return 1; /* needs refreshing */
+ return true; /* needs refreshing */
}
static int sticon_blank(struct vc_data *c, int blank, int mode_switch)
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index d93eb15da435..f89eb53c0b79 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -614,7 +614,7 @@ static void vgacon_doresize(struct vc_data *c,
raw_spin_unlock_irqrestore(&vga_lock, flags);
}
-static int vgacon_switch(struct vc_data *c)
+static bool vgacon_switch(struct vc_data *c)
{
int x = c->vc_cols * VGA_FONTWIDTH;
int y = c->vc_rows * c->vc_cell_height;
@@ -643,7 +643,7 @@ static int vgacon_switch(struct vc_data *c)
vgacon_doresize(c, c->vc_cols, c->vc_rows);
}
- return 0; /* Redrawing not needed */
+ return false; /* Redrawing not needed */
}
static void vga_set_palette(struct vc_data *vc, const unsigned char *table)
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index c1765a6ef490..d5d924225209 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2056,7 +2056,7 @@ static int fbcon_resize(struct vc_data *vc, unsigned int width,
return 0;
}
-static int fbcon_switch(struct vc_data *vc)
+static bool fbcon_switch(struct vc_data *vc)
{
struct fb_info *info, *old_info = NULL;
struct fbcon_ops *ops;
@@ -2178,9 +2178,9 @@ static int fbcon_switch(struct vc_data *vc)
vc->vc_origin + vc->vc_size_row * vc->vc_top,
vc->vc_size_row * (vc->vc_bottom -
vc->vc_top) / 2);
- return 0;
+ return false;
}
- return 1;
+ return true;
}
static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info,
diff --git a/include/linux/console.h b/include/linux/console.h
index a6a46b5efd66..f7c6b5fc3a36 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -46,6 +46,8 @@ enum vc_intensity;
* @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
* Return true if no generic handling should be done.
* Invoked by csi_M and printing to the console.
+ * @con_switch: notifier about the console switch; it is supposed to return
+ * true if a redraw is needed.
* @con_set_palette: sets the palette of the console to @table (optional)
* @con_scrolldelta: the contents of the console should be scrolled by @lines.
* Invoked by user. (optional)
@@ -66,7 +68,7 @@ struct consw {
bool (*con_scroll)(struct vc_data *vc, unsigned int top,
unsigned int bottom, enum con_scroll dir,
unsigned int lines);
- int (*con_switch)(struct vc_data *vc);
+ bool (*con_switch)(struct vc_data *vc);
int (*con_blank)(struct vc_data *vc, int blank, int mode_switch);
int (*con_font_set)(struct vc_data *vc, struct console_font *font,
unsigned int vpitch, unsigned int flags);
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 31/47] tty: vt: stop using -1 for blank mode in consw::con_blank()
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (12 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 30/47] tty: vt: make consw::con_switch() return a bool Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 32/47] tty: vt: define a common enum for VESA blanking constants Jiri Slaby (SUSE)
` (9 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, Helge Deller, linux-kernel, dri-devel, linux-serial,
Jiri Slaby (SUSE)
-1 is the same as VESA_VSYNC_SUSPEND in all con_blank() implementations.
So we can remove this special case from vgacon now too.
Despite con_blank() of fbcon looks complicated, the "if
(!fbcon_is_inactive(vc, info))" branch is not taken as we set
"ops->graphics = 1;" few lines above. So what matters there (as in all
other blank implementations except vgacon) is if 'blank' is zero or not.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/tty/vt/vt.c | 2 +-
drivers/video/console/vgacon.c | 1 -
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index fd868046f586..13be125a06aa 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -4347,7 +4347,7 @@ void do_blank_screen(int entering_gfx)
if (entering_gfx) {
hide_cursor(vc);
save_screen(vc);
- vc->vc_sw->con_blank(vc, -1, 1);
+ vc->vc_sw->con_blank(vc, 1, 1);
console_blanked = fg_console + 1;
blank_state = blank_off;
set_origin(vc);
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index f89eb53c0b79..804b6a180b60 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -814,7 +814,6 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch)
/* Tell console.c that it has to restore the screen itself */
return 1;
case 1: /* Normal blanking */
- case -1: /* Obsolete */
if (!mode_switch && vga_video_type == VIDEO_TYPE_VGAC) {
vga_pal_blank(&vgastate);
vga_palette_blanked = true;
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 32/47] tty: vt: define a common enum for VESA blanking constants
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (13 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 31/47] tty: vt: stop using -1 for blank mode in consw::con_blank() Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 33/47] tty: vt: use " Jiri Slaby (SUSE)
` (8 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, Thomas Zimmermann, Helge Deller, linux-kernel,
dri-devel, linux-serial, Jiri Slaby (SUSE)
There are currently two places with VESA blanking constants definitions:
fb.h and console.h. Extract/unify the two to a separate header (vesa.h).
Given the fb's is in an uapi header, create the common header in uapi
too.
Note that instead of macros, an enum (vesa_blank_mode) is created. But
the macros are kept too (they now expand to the enum constants), just in
case someone in userspace performs some #ifdeffery.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-kernel@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: Thomas Zimmermann <tzimmermann@suse.de>
---
Notes:
[v2] new in v2
include/linux/console.h | 7 +------
include/uapi/linux/fb.h | 8 +-------
include/uapi/linux/vesa.h | 18 ++++++++++++++++++
3 files changed, 20 insertions(+), 13 deletions(-)
create mode 100644 include/uapi/linux/vesa.h
diff --git a/include/linux/console.h b/include/linux/console.h
index f7c6b5fc3a36..860f82756c9c 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -18,6 +18,7 @@
#include <linux/bits.h>
#include <linux/rculist.h>
#include <linux/types.h>
+#include <linux/vesa.h>
struct vc_data;
struct console_font_op;
@@ -520,12 +521,6 @@ void vcs_remove_sysfs(int index);
*/
extern atomic_t ignore_console_lock_warning;
-/* VESA Blanking Levels */
-#define VESA_NO_BLANKING 0
-#define VESA_VSYNC_SUSPEND 1
-#define VESA_HSYNC_SUSPEND 2
-#define VESA_POWERDOWN 3
-
extern void console_init(void);
/* For deferred console takeover */
diff --git a/include/uapi/linux/fb.h b/include/uapi/linux/fb.h
index 3a49913d006c..cde8f173f566 100644
--- a/include/uapi/linux/fb.h
+++ b/include/uapi/linux/fb.h
@@ -4,6 +4,7 @@
#include <linux/types.h>
#include <linux/i2c.h>
+#include <linux/vesa.h>
/* Definitions of frame buffers */
@@ -293,13 +294,6 @@ struct fb_con2fbmap {
__u32 framebuffer;
};
-/* VESA Blanking Levels */
-#define VESA_NO_BLANKING 0
-#define VESA_VSYNC_SUSPEND 1
-#define VESA_HSYNC_SUSPEND 2
-#define VESA_POWERDOWN 3
-
-
enum {
/* screen: unblanked, hsync: on, vsync: on */
FB_BLANK_UNBLANK = VESA_NO_BLANKING,
diff --git a/include/uapi/linux/vesa.h b/include/uapi/linux/vesa.h
new file mode 100644
index 000000000000..81947f5088cd
--- /dev/null
+++ b/include/uapi/linux/vesa.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_LINUX_VESA_H
+#define _UAPI_LINUX_VESA_H
+
+/* VESA Blanking Levels */
+enum vesa_blank_mode {
+ VESA_NO_BLANKING = 0,
+#define VESA_NO_BLANKING VESA_NO_BLANKING
+ VESA_VSYNC_SUSPEND = 1,
+#define VESA_VSYNC_SUSPEND VESA_VSYNC_SUSPEND
+ VESA_HSYNC_SUSPEND = 2,
+#define VESA_HSYNC_SUSPEND VESA_HSYNC_SUSPEND
+ VESA_POWERDOWN = VESA_VSYNC_SUSPEND | VESA_HSYNC_SUSPEND,
+#define VESA_POWERDOWN VESA_POWERDOWN
+ VESA_BLANK_MAX = VESA_POWERDOWN,
+};
+
+#endif
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 33/47] tty: vt: use VESA blanking constants
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (14 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 32/47] tty: vt: define a common enum for VESA blanking constants Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 34/47] tty: vt: use enum constants for VESA blanking modes Jiri Slaby (SUSE)
` (7 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-parisc, Helge Deller, linux-kernel, dri-devel,
James E.J. Bottomley, linux-serial, Jiri Slaby (SUSE)
There are VESA blanking constants defined in vesa.h. So use them in the
console code instead of constant values.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
Notes:
[v2] reword the commit log after vesa.h introduction
drivers/tty/vt/vt.c | 9 +++++----
drivers/video/console/newport_con.c | 2 +-
drivers/video/console/sticon.c | 2 +-
drivers/video/console/vgacon.c | 6 +++---
4 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 13be125a06aa..0d5d7b5074a4 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -4320,7 +4320,7 @@ static int set_vesa_blanking(u8 __user *mode_user)
return -EFAULT;
console_lock();
- vesa_blank_mode = (mode < 4) ? mode : 0;
+ vesa_blank_mode = (mode < 4) ? mode : VESA_NO_BLANKING;
console_unlock();
return 0;
@@ -4347,7 +4347,7 @@ void do_blank_screen(int entering_gfx)
if (entering_gfx) {
hide_cursor(vc);
save_screen(vc);
- vc->vc_sw->con_blank(vc, 1, 1);
+ vc->vc_sw->con_blank(vc, VESA_VSYNC_SUSPEND, 1);
console_blanked = fg_console + 1;
blank_state = blank_off;
set_origin(vc);
@@ -4368,7 +4368,8 @@ void do_blank_screen(int entering_gfx)
save_screen(vc);
/* In case we need to reset origin, blanking hook returns 1 */
- i = vc->vc_sw->con_blank(vc, vesa_off_interval ? 1 : (vesa_blank_mode + 1), 0);
+ i = vc->vc_sw->con_blank(vc, vesa_off_interval ? VESA_VSYNC_SUSPEND :
+ (vesa_blank_mode + 1), 0);
console_blanked = fg_console + 1;
if (i)
set_origin(vc);
@@ -4419,7 +4420,7 @@ void do_unblank_screen(int leaving_gfx)
}
console_blanked = 0;
- if (vc->vc_sw->con_blank(vc, 0, leaving_gfx))
+ if (vc->vc_sw->con_blank(vc, VESA_NO_BLANKING, leaving_gfx))
/* Low-level driver cannot restore -> do it ourselves */
update_screen(vc);
if (console_blank_hook)
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index 039d1c9937d2..ad3a09142770 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -480,7 +480,7 @@ static int newport_blank(struct vc_data *c, int blank, int mode_switch)
{
unsigned short treg;
- if (blank == 0) {
+ if (blank == VESA_NO_BLANKING) {
/* unblank console */
treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
newport_vc2_set(npregs, VC2_IREG_CONTROL,
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index f3bb48a0e980..817b89c45e81 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -300,7 +300,7 @@ static bool sticon_switch(struct vc_data *conp)
static int sticon_blank(struct vc_data *c, int blank, int mode_switch)
{
- if (blank == 0) {
+ if (blank == VESA_NO_BLANKING) {
if (mode_switch)
vga_is_gfx = 0;
return 1;
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 804b6a180b60..02eccd9b3542 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -800,10 +800,10 @@ static void vga_pal_blank(struct vgastate *state)
static int vgacon_blank(struct vc_data *c, int blank, int mode_switch)
{
switch (blank) {
- case 0: /* Unblank */
+ case VESA_NO_BLANKING: /* Unblank */
if (vga_vesa_blanked) {
vga_vesa_unblank(&vgastate);
- vga_vesa_blanked = 0;
+ vga_vesa_blanked = VESA_NO_BLANKING;
}
if (vga_palette_blanked) {
vga_set_palette(c, color_table);
@@ -813,7 +813,7 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch)
vga_is_gfx = false;
/* Tell console.c that it has to restore the screen itself */
return 1;
- case 1: /* Normal blanking */
+ case VESA_VSYNC_SUSPEND: /* Normal blanking */
if (!mode_switch && vga_video_type == VIDEO_TYPE_VGAC) {
vga_pal_blank(&vgastate);
vga_palette_blanked = true;
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 34/47] tty: vt: use enum constants for VESA blanking modes
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (15 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 33/47] tty: vt: use " Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 35/47] tty: vt: make types around consw::con_blank() bool Jiri Slaby (SUSE)
` (6 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, linux-parisc, Helge Deller,
linux-kernel, dri-devel, James E.J. Bottomley, Daniel Vetter,
Jiri Slaby (SUSE)
Use the new enum for VESA constants. This improves type checking in
consw::con_blank().
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
Notes:
[v2] the enum is added earlier, so reword and rebase
drivers/tty/vt/vt.c | 4 ++--
drivers/video/console/dummycon.c | 6 ++++--
drivers/video/console/mdacon.c | 3 ++-
drivers/video/console/newport_con.c | 3 ++-
drivers/video/console/sticon.c | 3 ++-
drivers/video/console/vgacon.c | 7 ++++---
drivers/video/fbdev/core/fbcon.c | 3 ++-
include/linux/console.h | 3 ++-
8 files changed, 20 insertions(+), 12 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 0d5d7b5074a4..de9148094c2d 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -175,7 +175,7 @@ int do_poke_blanked_console;
int console_blanked;
EXPORT_SYMBOL(console_blanked);
-static int vesa_blank_mode; /* 0:none 1:suspendV 2:suspendH 3:powerdown */
+static enum vesa_blank_mode vesa_blank_mode;
static int vesa_off_interval;
static int blankinterval;
core_param(consoleblank, blankinterval, int, 0444);
@@ -4320,7 +4320,7 @@ static int set_vesa_blanking(u8 __user *mode_user)
return -EFAULT;
console_lock();
- vesa_blank_mode = (mode < 4) ? mode : VESA_NO_BLANKING;
+ vesa_blank_mode = (mode <= VESA_BLANK_MAX) ? mode : VESA_NO_BLANKING;
console_unlock();
return 0;
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index c8d5aa0e3ed0..d86c1d798690 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -79,7 +79,8 @@ static void dummycon_putcs(struct vc_data *vc, const u16 *s, unsigned int count,
raw_notifier_call_chain(&dummycon_output_nh, 0, NULL);
}
-static int dummycon_blank(struct vc_data *vc, int blank, int mode_switch)
+static int dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
+ int mode_switch)
{
/* Redraw, so that we get putc(s) for output done while blanked */
return 1;
@@ -89,7 +90,8 @@ static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y,
unsigned int x) { }
static void dummycon_putcs(struct vc_data *vc, const u16 *s, unsigned int count,
unsigned int ypos, unsigned int xpos) { }
-static int dummycon_blank(struct vc_data *vc, int blank, int mode_switch)
+static int dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
+ int mode_switch)
{
return 0;
}
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 4485ef923bb3..63e3ce678aab 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -451,7 +451,8 @@ static bool mdacon_switch(struct vc_data *c)
return true; /* redrawing needed */
}
-static int mdacon_blank(struct vc_data *c, int blank, int mode_switch)
+static int mdacon_blank(struct vc_data *c, enum vesa_blank_mode blank,
+ int mode_switch)
{
if (mda_type == TYPE_MDA) {
if (blank)
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index ad3a09142770..38437a53b7f1 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -476,7 +476,8 @@ static bool newport_switch(struct vc_data *vc)
return true;
}
-static int newport_blank(struct vc_data *c, int blank, int mode_switch)
+static int newport_blank(struct vc_data *c, enum vesa_blank_mode blank,
+ int mode_switch)
{
unsigned short treg;
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 817b89c45e81..e9d5d1f92883 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -298,7 +298,8 @@ static bool sticon_switch(struct vc_data *conp)
return true; /* needs refreshing */
}
-static int sticon_blank(struct vc_data *c, int blank, int mode_switch)
+static int sticon_blank(struct vc_data *c, enum vesa_blank_mode blank,
+ int mode_switch)
{
if (blank == VESA_NO_BLANKING) {
if (mode_switch)
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 02eccd9b3542..84f3682704c7 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -81,7 +81,7 @@ static unsigned int vga_video_num_lines; /* Number of text lines */
static bool vga_can_do_color; /* Do we support colors? */
static unsigned int vga_default_font_height __read_mostly; /* Height of default screen font */
static unsigned char vga_video_type __read_mostly; /* Card type */
-static int vga_vesa_blanked;
+static enum vesa_blank_mode vga_vesa_blanked;
static bool vga_palette_blanked;
static bool vga_is_gfx;
static bool vga_512_chars;
@@ -683,7 +683,7 @@ static struct {
unsigned char ClockingMode; /* Seq-Controller:01h */
} vga_state;
-static void vga_vesa_blank(struct vgastate *state, int mode)
+static void vga_vesa_blank(struct vgastate *state, enum vesa_blank_mode mode)
{
/* save original values of VGA controller registers */
if (!vga_vesa_blanked) {
@@ -797,7 +797,8 @@ static void vga_pal_blank(struct vgastate *state)
}
}
-static int vgacon_blank(struct vc_data *c, int blank, int mode_switch)
+static int vgacon_blank(struct vc_data *c, enum vesa_blank_mode blank,
+ int mode_switch)
{
switch (blank) {
case VESA_NO_BLANKING: /* Unblank */
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index d5d924225209..69be5f2106bc 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2198,7 +2198,8 @@ static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info,
}
}
-static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
+static int fbcon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
+ int mode_switch)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
struct fbcon_ops *ops = info->fbcon_par;
diff --git a/include/linux/console.h b/include/linux/console.h
index 860f82756c9c..69040d7c8f97 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -70,7 +70,8 @@ struct consw {
unsigned int bottom, enum con_scroll dir,
unsigned int lines);
bool (*con_switch)(struct vc_data *vc);
- int (*con_blank)(struct vc_data *vc, int blank, int mode_switch);
+ int (*con_blank)(struct vc_data *vc, enum vesa_blank_mode blank,
+ int mode_switch);
int (*con_font_set)(struct vc_data *vc, struct console_font *font,
unsigned int vpitch, unsigned int flags);
int (*con_font_get)(struct vc_data *vc, struct console_font *font,
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 35/47] tty: vt: make types around consw::con_blank() bool
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (16 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 34/47] tty: vt: use enum constants for VESA blanking modes Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 36/47] tty: vt: make font of consw::con_font_set() const Jiri Slaby (SUSE)
` (5 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, linux-parisc, Helge Deller,
linux-kernel, dri-devel, James E.J. Bottomley, Daniel Vetter,
Jiri Slaby (SUSE)
Both the mode_switch parameter and the return value (a redraw needed)
are true/false. So switch them to bool, so that users won't return
-Eerrors or anything else.
And document the hook.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
drivers/video/console/dummycon.c | 12 ++++++------
drivers/video/console/mdacon.c | 8 ++++----
drivers/video/console/newport_con.c | 7 ++++---
drivers/video/console/sticon.c | 9 +++++----
drivers/video/console/vgacon.c | 4 ++--
drivers/video/fbdev/core/fbcon.c | 6 +++---
include/linux/console.h | 7 +++++--
7 files changed, 29 insertions(+), 24 deletions(-)
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index d86c1d798690..139049368fdc 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -79,21 +79,21 @@ static void dummycon_putcs(struct vc_data *vc, const u16 *s, unsigned int count,
raw_notifier_call_chain(&dummycon_output_nh, 0, NULL);
}
-static int dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
- int mode_switch)
+static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
+ bool mode_switch)
{
/* Redraw, so that we get putc(s) for output done while blanked */
- return 1;
+ return true;
}
#else
static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y,
unsigned int x) { }
static void dummycon_putcs(struct vc_data *vc, const u16 *s, unsigned int count,
unsigned int ypos, unsigned int xpos) { }
-static int dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
- int mode_switch)
+static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
+ bool mode_switch)
{
- return 0;
+ return false;
}
#endif
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 63e3ce678aab..c0e1f4554a44 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -451,8 +451,8 @@ static bool mdacon_switch(struct vc_data *c)
return true; /* redrawing needed */
}
-static int mdacon_blank(struct vc_data *c, enum vesa_blank_mode blank,
- int mode_switch)
+static bool mdacon_blank(struct vc_data *c, enum vesa_blank_mode blank,
+ bool mode_switch)
{
if (mda_type == TYPE_MDA) {
if (blank)
@@ -460,14 +460,14 @@ static int mdacon_blank(struct vc_data *c, enum vesa_blank_mode blank,
mda_convert_attr(c->vc_video_erase_char),
c->vc_screenbuf_size);
/* Tell console.c that it has to restore the screen itself */
- return 1;
+ return true;
} else {
if (blank)
outb_p(0x00, mda_mode_port); /* disable video */
else
outb_p(MDA_MODE_VIDEO_EN | MDA_MODE_BLINK_EN,
mda_mode_port);
- return 0;
+ return false;
}
}
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index 38437a53b7f1..dbb31bf87bf1 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -476,8 +476,8 @@ static bool newport_switch(struct vc_data *vc)
return true;
}
-static int newport_blank(struct vc_data *c, enum vesa_blank_mode blank,
- int mode_switch)
+static bool newport_blank(struct vc_data *c, enum vesa_blank_mode blank,
+ bool mode_switch)
{
unsigned short treg;
@@ -492,7 +492,8 @@ static int newport_blank(struct vc_data *c, enum vesa_blank_mode blank,
newport_vc2_set(npregs, VC2_IREG_CONTROL,
(treg & ~(VC2_CTRL_EDISP)));
}
- return 1;
+
+ return true;
}
static int newport_set_font(int unit, struct console_font *op, unsigned int vpitch)
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index e9d5d1f92883..cbb9ef438214 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -298,19 +298,20 @@ static bool sticon_switch(struct vc_data *conp)
return true; /* needs refreshing */
}
-static int sticon_blank(struct vc_data *c, enum vesa_blank_mode blank,
- int mode_switch)
+static bool sticon_blank(struct vc_data *c, enum vesa_blank_mode blank,
+ bool mode_switch)
{
if (blank == VESA_NO_BLANKING) {
if (mode_switch)
vga_is_gfx = 0;
- return 1;
+ return true;
}
sti_clear(sticon_sti, 0, 0, c->vc_rows, c->vc_cols, BLANK,
font_data[c->vc_num]);
if (mode_switch)
vga_is_gfx = 1;
- return 1;
+
+ return true;
}
static u8 sticon_build_attr(struct vc_data *conp, u8 color,
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 84f3682704c7..c9a22118102f 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -797,8 +797,8 @@ static void vga_pal_blank(struct vgastate *state)
}
}
-static int vgacon_blank(struct vc_data *c, enum vesa_blank_mode blank,
- int mode_switch)
+static bool vgacon_blank(struct vc_data *c, enum vesa_blank_mode blank,
+ bool mode_switch)
{
switch (blank) {
case VESA_NO_BLANKING: /* Unblank */
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 69be5f2106bc..eee2adf5c682 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2198,8 +2198,8 @@ static void fbcon_generic_blank(struct vc_data *vc, struct fb_info *info,
}
}
-static int fbcon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
- int mode_switch)
+static bool fbcon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
+ bool mode_switch)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
struct fbcon_ops *ops = info->fbcon_par;
@@ -2238,7 +2238,7 @@ static int fbcon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
else
fbcon_add_cursor_work(info);
- return 0;
+ return false;
}
static void fbcon_debug_enter(struct vc_data *vc)
diff --git a/include/linux/console.h b/include/linux/console.h
index 69040d7c8f97..6392bcd2fe7c 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -49,6 +49,9 @@ enum vc_intensity;
* Invoked by csi_M and printing to the console.
* @con_switch: notifier about the console switch; it is supposed to return
* true if a redraw is needed.
+ * @con_blank: blank/unblank the console. The target mode is passed in @blank.
+ * @mode_switch is set if changing from/to text/graphics. The hook
+ * is supposed to return true if a redraw is needed.
* @con_set_palette: sets the palette of the console to @table (optional)
* @con_scrolldelta: the contents of the console should be scrolled by @lines.
* Invoked by user. (optional)
@@ -70,8 +73,8 @@ struct consw {
unsigned int bottom, enum con_scroll dir,
unsigned int lines);
bool (*con_switch)(struct vc_data *vc);
- int (*con_blank)(struct vc_data *vc, enum vesa_blank_mode blank,
- int mode_switch);
+ bool (*con_blank)(struct vc_data *vc, enum vesa_blank_mode blank,
+ bool mode_switch);
int (*con_font_set)(struct vc_data *vc, struct console_font *font,
unsigned int vpitch, unsigned int flags);
int (*con_font_get)(struct vc_data *vc, struct console_font *font,
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 36/47] tty: vt: make font of consw::con_font_set() const
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (17 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 35/47] tty: vt: make types around consw::con_blank() bool Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 37/47] tty: vt: make consw::con_font_default()'s name const Jiri Slaby (SUSE)
` (4 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, linux-parisc, Helge Deller,
linux-kernel, dri-devel, James E.J. Bottomley, Daniel Vetter,
Jiri Slaby (SUSE)
Provided the font parameter of consw::con_font_set() is not supposed to
be changed, make it const.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
drivers/tty/vt/vt.c | 2 +-
drivers/video/console/newport_con.c | 5 +++--
drivers/video/console/sticon.c | 4 ++--
drivers/video/console/vgacon.c | 2 +-
drivers/video/fbdev/core/fbcon.c | 2 +-
include/linux/console.h | 5 +++--
6 files changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index de9148094c2d..0ac537f82f7a 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -4625,7 +4625,7 @@ static int con_font_get(struct vc_data *vc, struct console_font_op *op)
return rc;
}
-static int con_font_set(struct vc_data *vc, struct console_font_op *op)
+static int con_font_set(struct vc_data *vc, const struct console_font_op *op)
{
struct console_font font;
int rc = -EINVAL;
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index dbb31bf87bf1..4203bd5fd0a1 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -496,7 +496,8 @@ static bool newport_blank(struct vc_data *c, enum vesa_blank_mode blank,
return true;
}
-static int newport_set_font(int unit, struct console_font *op, unsigned int vpitch)
+static int newport_set_font(int unit, const struct console_font *op,
+ unsigned int vpitch)
{
int w = op->width;
int h = op->height;
@@ -568,7 +569,7 @@ static int newport_font_default(struct vc_data *vc, struct console_font *op, cha
return newport_set_def_font(vc->vc_num, op);
}
-static int newport_font_set(struct vc_data *vc, struct console_font *font,
+static int newport_font_set(struct vc_data *vc, const struct console_font *font,
unsigned int vpitch, unsigned int flags)
{
return newport_set_font(vc->vc_num, font, vpitch);
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index cbb9ef438214..710201fb8ce4 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -153,7 +153,7 @@ static void sticon_set_def_font(int unit)
}
}
-static int sticon_set_font(struct vc_data *vc, struct console_font *op,
+static int sticon_set_font(struct vc_data *vc, const struct console_font *op,
unsigned int vpitch)
{
struct sti_struct *sti = sticon_sti;
@@ -253,7 +253,7 @@ static int sticon_font_default(struct vc_data *vc, struct console_font *op, char
return 0;
}
-static int sticon_font_set(struct vc_data *vc, struct console_font *font,
+static int sticon_font_set(struct vc_data *vc, const struct console_font *font,
unsigned int vpitch, unsigned int flags)
{
return sticon_set_font(vc, font, vpitch);
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index c9a22118102f..4d1c8f5863af 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1039,7 +1039,7 @@ static int vgacon_adjust_height(struct vc_data *vc, unsigned fontheight)
return 0;
}
-static int vgacon_font_set(struct vc_data *c, struct console_font *font,
+static int vgacon_font_set(struct vc_data *c, const struct console_font *font,
unsigned int vpitch, unsigned int flags)
{
unsigned charcount = font->charcount;
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index eee2adf5c682..62474630c4d4 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2460,7 +2460,7 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, int charcount,
* but lets not assume that, since charcount of 512 is small for unicode support.
*/
-static int fbcon_set_font(struct vc_data *vc, struct console_font *font,
+static int fbcon_set_font(struct vc_data *vc, const struct console_font *font,
unsigned int vpitch, unsigned int flags)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
diff --git a/include/linux/console.h b/include/linux/console.h
index 6392bcd2fe7c..0a9f4cbdde83 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -75,8 +75,9 @@ struct consw {
bool (*con_switch)(struct vc_data *vc);
bool (*con_blank)(struct vc_data *vc, enum vesa_blank_mode blank,
bool mode_switch);
- int (*con_font_set)(struct vc_data *vc, struct console_font *font,
- unsigned int vpitch, unsigned int flags);
+ int (*con_font_set)(struct vc_data *vc,
+ const struct console_font *font,
+ unsigned int vpitch, unsigned int flags);
int (*con_font_get)(struct vc_data *vc, struct console_font *font,
unsigned int vpitch);
int (*con_font_default)(struct vc_data *vc,
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 37/47] tty: vt: make consw::con_font_default()'s name const
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (18 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 36/47] tty: vt: make font of consw::con_font_set() const Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 38/47] tty: vt: change consw::con_set_origin() return type Jiri Slaby (SUSE)
` (3 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, linux-parisc, linux-kernel, dri-devel,
James E.J. Bottomley, Daniel Vetter, Jiri Slaby (SUSE)
It's a name after all and that is not supposed to be changed. So make it
const to make this obvious.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-parisc@vger.kernel.org
---
drivers/video/console/newport_con.c | 3 ++-
drivers/video/console/sticon.c | 3 ++-
drivers/video/fbdev/core/fbcon.c | 3 ++-
include/linux/console.h | 2 +-
4 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index 4203bd5fd0a1..a51cfc1d560e 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -564,7 +564,8 @@ static int newport_set_def_font(int unit, struct console_font *op)
return 0;
}
-static int newport_font_default(struct vc_data *vc, struct console_font *op, char *name)
+static int newport_font_default(struct vc_data *vc, struct console_font *op,
+ const char *name)
{
return newport_set_def_font(vc->vc_num, op);
}
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 710201fb8ce4..4c7b4959a1aa 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -246,7 +246,8 @@ static int sticon_set_font(struct vc_data *vc, const struct console_font *op,
return 0;
}
-static int sticon_font_default(struct vc_data *vc, struct console_font *op, char *name)
+static int sticon_font_default(struct vc_data *vc, struct console_font *op,
+ const char *name)
{
sticon_set_def_font(vc->vc_num);
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 62474630c4d4..657160eec0a5 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2533,7 +2533,8 @@ static int fbcon_set_font(struct vc_data *vc, const struct console_font *font,
return fbcon_do_set_font(vc, font->width, font->height, charcount, new_data, 1);
}
-static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font, char *name)
+static int fbcon_set_def_font(struct vc_data *vc, struct console_font *font,
+ const char *name)
{
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
const struct font_desc *f;
diff --git a/include/linux/console.h b/include/linux/console.h
index 0a9f4cbdde83..6bb7e5e37ae4 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -81,7 +81,7 @@ struct consw {
int (*con_font_get)(struct vc_data *vc, struct console_font *font,
unsigned int vpitch);
int (*con_font_default)(struct vc_data *vc,
- struct console_font *font, char *name);
+ struct console_font *font, const char *name);
int (*con_resize)(struct vc_data *vc, unsigned int width,
unsigned int height, bool from_user);
void (*con_set_palette)(struct vc_data *vc,
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 38/47] tty: vt: change consw::con_set_origin() return type
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (19 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 37/47] tty: vt: make consw::con_font_default()'s name const Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 39/47] fbcon: remove consw::con_screen_pos() Jiri Slaby (SUSE)
` (2 subsequent siblings)
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, Helge Deller, linux-kernel, dri-devel, linux-serial,
Jiri Slaby (SUSE)
The return value of consw::con_set_origin() is only true/false, meaining
if vc->vc_origin is set to vc->vc_screenbuf or not.
So switch the type and returned values accordingly.
And document the hook.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/video/console/vgacon.c | 8 ++++----
include/linux/console.h | 5 ++++-
2 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 4d1c8f5863af..7597f04b0dc7 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -65,7 +65,7 @@ static struct vgastate vgastate;
* Interface used by the world
*/
-static int vgacon_set_origin(struct vc_data *c);
+static bool vgacon_set_origin(struct vc_data *c);
static struct uni_pagedict *vgacon_uni_pagedir;
static int vgacon_refcount;
@@ -1100,15 +1100,15 @@ static int vgacon_resize(struct vc_data *c, unsigned int width,
return 0;
}
-static int vgacon_set_origin(struct vc_data *c)
+static bool vgacon_set_origin(struct vc_data *c)
{
if (vga_is_gfx || /* We don't play origin tricks in graphic modes */
(console_blanked && !vga_palette_blanked)) /* Nor we write to blanked screens */
- return 0;
+ return false;
c->vc_origin = c->vc_visible_origin = vga_vram_base;
vga_set_mem_top(c);
vga_rolled_over = 0;
- return 1;
+ return true;
}
static void vgacon_save_screen(struct vc_data *c)
diff --git a/include/linux/console.h b/include/linux/console.h
index 6bb7e5e37ae4..82e4b554a801 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -55,6 +55,9 @@ enum vc_intensity;
* @con_set_palette: sets the palette of the console to @table (optional)
* @con_scrolldelta: the contents of the console should be scrolled by @lines.
* Invoked by user. (optional)
+ * @con_set_origin: set origin (see &vc_data::vc_origin) of the @vc. If not
+ * provided or returns false, the origin is set to
+ * @vc->vc_screenbuf. (optional)
*/
struct consw {
struct module *owner;
@@ -87,7 +90,7 @@ struct consw {
void (*con_set_palette)(struct vc_data *vc,
const unsigned char *table);
void (*con_scrolldelta)(struct vc_data *vc, int lines);
- int (*con_set_origin)(struct vc_data *vc);
+ bool (*con_set_origin)(struct vc_data *vc);
void (*con_save_screen)(struct vc_data *vc);
u8 (*con_build_attr)(struct vc_data *vc, u8 color,
enum vc_intensity intensity,
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 39/47] fbcon: remove consw::con_screen_pos()
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (20 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 38/47] tty: vt: change consw::con_set_origin() return type Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 42/47] fbcon: remove fbcon_getxy() Jiri Slaby (SUSE)
2024-01-22 20:00 ` [PATCH v2 00/47] tty: vt: cleanup and documentation Helge Deller
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, Helge Deller, linux-kernel, dri-devel,
Daniel Vetter, Jiri Slaby (SUSE)
fbcon_screen_pos() performs the same as the default implementation. The
only difference in the default implementation is that is considers both
vc->vc_origin and vc->vc_visible_origin. But given fbcon's softscroll
code was already removed in commit 50145474f6ef (fbcon: remove soft
scrollback code), both are always the same.
So remove fbcon_screen_pos() too.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/video/fbdev/core/fbcon.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 657160eec0a5..2166ea1a5430 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2593,11 +2593,6 @@ static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table)
fb_set_cmap(&palette_cmap, info);
}
-static u16 *fbcon_screen_pos(const struct vc_data *vc, int offset)
-{
- return (u16 *) (vc->vc_origin + offset);
-}
-
static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos,
int *px, int *py)
{
@@ -3162,7 +3157,6 @@ static const struct consw fb_con = {
.con_font_default = fbcon_set_def_font,
.con_set_palette = fbcon_set_palette,
.con_invert_region = fbcon_invert_region,
- .con_screen_pos = fbcon_screen_pos,
.con_getxy = fbcon_getxy,
.con_resize = fbcon_resize,
.con_debug_enter = fbcon_debug_enter,
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 42/47] fbcon: remove fbcon_getxy()
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (21 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 39/47] fbcon: remove consw::con_screen_pos() Jiri Slaby (SUSE)
@ 2024-01-22 11:03 ` Jiri Slaby (SUSE)
2024-01-22 20:00 ` [PATCH v2 00/47] tty: vt: cleanup and documentation Helge Deller
23 siblings, 0 replies; 25+ messages in thread
From: Jiri Slaby (SUSE) @ 2024-01-22 11:03 UTC (permalink / raw
To: gregkh
Cc: linux-fbdev, linux-serial, Helge Deller, linux-kernel, dri-devel,
Daniel Vetter, Jiri Slaby (SUSE)
Again, fbcon_getxy() is the same as the default implementation since the
softscroll removal in commit 50145474f6ef (fbcon: remove soft scrollback
code). Drop that.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/video/fbdev/core/fbcon.c | 25 -------------------------
1 file changed, 25 deletions(-)
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 2166ea1a5430..9c2962900d13 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -2593,30 +2593,6 @@ static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table)
fb_set_cmap(&palette_cmap, info);
}
-static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos,
- int *px, int *py)
-{
- unsigned long ret;
- int x, y;
-
- if (pos >= vc->vc_origin && pos < vc->vc_scr_end) {
- unsigned long offset = (pos - vc->vc_origin) / 2;
-
- x = offset % vc->vc_cols;
- y = offset / vc->vc_cols;
- ret = pos + (vc->vc_cols - x) * 2;
- } else {
- /* Should not happen */
- x = y = 0;
- ret = vc->vc_origin;
- }
- if (px)
- *px = x;
- if (py)
- *py = y;
- return ret;
-}
-
/* As we might be inside of softback, we may work with non-contiguous buffer,
that's why we have to use a separate routine. */
static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt)
@@ -3157,7 +3133,6 @@ static const struct consw fb_con = {
.con_font_default = fbcon_set_def_font,
.con_set_palette = fbcon_set_palette,
.con_invert_region = fbcon_invert_region,
- .con_getxy = fbcon_getxy,
.con_resize = fbcon_resize,
.con_debug_enter = fbcon_debug_enter,
.con_debug_leave = fbcon_debug_leave,
--
2.43.0
^ permalink raw reply related [flat|nested] 25+ messages in thread
* Re: [PATCH v2 00/47] tty: vt: cleanup and documentation
2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
` (22 preceding siblings ...)
2024-01-22 11:03 ` [PATCH v2 42/47] fbcon: remove fbcon_getxy() Jiri Slaby (SUSE)
@ 2024-01-22 20:00 ` Helge Deller
23 siblings, 0 replies; 25+ messages in thread
From: Helge Deller @ 2024-01-22 20:00 UTC (permalink / raw
To: Jiri Slaby (SUSE), gregkh
Cc: Martin Hostettler, linux-fbdev, linux-serial, linux-parisc,
Jonathan Corbet, Thomas Zimmermann, linux-doc, linux-kernel,
dri-devel, James E.J. Bottomley, Daniel Vetter
On 1/22/24 12:03, Jiri Slaby (SUSE) wrote:
> Push the console code (vt.c, vt.h, console.h, ...) into a bit more
> maintainable state. Especially all around consw structure and document
> it.
>
> CSI parser is also a bit cleaned up. More to follow some time in the
> next round.
I've not yet looked through all of those patches, but I
tried to boot up a machine with the STI console driver
and I've not seen any issues yet.
So far:
Tested-by: Helge Deller <deller@gmx.de> # parisc STI console
Helge
> [v2] See respective patches for changes. The major changes:
> * vesa.h introduced
> * parameters of csi*() simplified
>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
> Cc: Helge Deller <deller@gmx.de>
> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
> Cc: Jonathan Corbet <corbet@lwn.net>
> Cc: linux-doc@vger.kernel.org
> Cc: linux-fbdev@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: Martin Hostettler <textshell@uchuujin.de>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
>
> Jiri Slaby (SUSE) (47):
>
> vgacon: inline vc_scrolldelta_helper() into vgacon_scrolldelta()
> fbcon: make display_desc a static array in fbcon_startup()
> tty: vt: fix 20 vs 0x20 typo in EScsiignore
> tty: vt: expect valid vc when in tty ops
> tty: vt: pass proper pointers from tioclinux()
> tty: vt: push console lock from tioclinux() down to 2 functions
> tty: vt: pass vc_resize_user as a parameter
> tty: vt: make vc_is_sel()'s vc const
> tty: vt: define an enum for CSI+m codes
> tty: vt: use case ranges for CSI+m fg/bg colors
> tty: vt: define an enum for CSI+J codes
> tty: vt: reflow csi_J()
> use clamp() for counts in csi_?() handlers
> don't pass vc->vc_par[0] to csi_?() handlers
> tty: vt: define an enum for CSI+K codes
> tty: vt: reflow csi_K()
> tty: vt: define an enum for ascii characters
> tty: vt: remove extern from functions in selection.h
> tty: vt: make consw::con_debug_*() return void
> tty: vt: make init parameter of consw::con_init() a bool
> tty: vt: sanitize arguments of consw::con_clear()
> tty: vt: remove checks for count in consw::con_clear() implementations
> tty: vt: add con_putc() helper
> tty: vt: eliminate unneeded consw::con_putc() implementations
> tty: vt: sanitize consw::con_putc() parameters
> tty: vt: sanitize consw::con_putcs() parameters
> consoles: use if instead of switch-case in consw::con_cursor()
> fbdev/core: simplify cursor_state setting in fbcon_ops::cursor()
> tty: vt: remove CM_* constants
> tty: vt: make consw::con_switch() return a bool
> tty: vt: stop using -1 for blank mode in consw::con_blank()
> tty: vt: define a common enum for VESA blanking constants
> tty: vt: use VESA blanking constants
> tty: vt: use enum constants for VESA blanking modes
> tty: vt: make types around consw::con_blank() bool
> tty: vt: make font of consw::con_font_set() const
> tty: vt: make consw::con_font_default()'s name const
> tty: vt: change consw::con_set_origin() return type
> fbcon: remove consw::con_screen_pos()
> tty: vt: remove consw::con_screen_pos()
> tty: vt: make types of screenpos() more consistent
> fbcon: remove fbcon_getxy()
> tty: vt: remove consw::con_getxy()
> tty: vt: remove unused consw::con_flush_scrollback()
> tty: vt: document the rest of struct consw
> tty: vt: fix up kernel-doc
> Documentation: add console.rst
>
> Documentation/driver-api/tty/console.rst | 45 ++
> Documentation/driver-api/tty/index.rst | 1 +
> drivers/tty/vt/selection.c | 43 +-
> drivers/tty/vt/vt.c | 645 +++++++++++------------
> drivers/tty/vt/vt_ioctl.c | 6 +-
> drivers/video/console/dummycon.c | 38 +-
> drivers/video/console/mdacon.c | 43 +-
> drivers/video/console/newport_con.c | 69 +--
> drivers/video/console/sticon.c | 79 ++-
> drivers/video/console/vgacon.c | 152 +++---
> drivers/video/fbdev/core/bitblit.c | 13 +-
> drivers/video/fbdev/core/fbcon.c | 123 ++---
> drivers/video/fbdev/core/fbcon.h | 4 +-
> drivers/video/fbdev/core/fbcon_ccw.c | 13 +-
> drivers/video/fbdev/core/fbcon_cw.c | 13 +-
> drivers/video/fbdev/core/fbcon_ud.c | 13 +-
> drivers/video/fbdev/core/tileblit.c | 4 +-
> include/linux/console.h | 124 +++--
> include/linux/console_struct.h | 1 -
> include/linux/selection.h | 56 +-
> include/linux/vt_kern.h | 12 +-
> include/uapi/linux/fb.h | 8 +-
> include/uapi/linux/vesa.h | 18 +
> 23 files changed, 755 insertions(+), 768 deletions(-)
> create mode 100644 Documentation/driver-api/tty/console.rst
> create mode 100644 include/uapi/linux/vesa.h
>
^ permalink raw reply [flat|nested] 25+ messages in thread
end of thread, other threads:[~2024-01-22 20:06 UTC | newest]
Thread overview: 25+ messages (download: mbox.gz follow: Atom feed
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2024-01-22 11:03 [PATCH v2 00/47] tty: vt: cleanup and documentation Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 01/47] vgacon: inline vc_scrolldelta_helper() into vgacon_scrolldelta() Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 02/47] fbcon: make display_desc a static array in fbcon_startup() Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 07/47] tty: vt: pass vc_resize_user as a parameter Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 19/47] tty: vt: make consw::con_debug_*() return void Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 20/47] tty: vt: make init parameter of consw::con_init() a bool Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 21/47] tty: vt: sanitize arguments of consw::con_clear() Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 22/47] tty: vt: remove checks for count in consw::con_clear() implementations Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 24/47] tty: vt: eliminate unneeded consw::con_putc() implementations Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 25/47] tty: vt: sanitize consw::con_putc() parameters Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 27/47] consoles: use if instead of switch-case in consw::con_cursor() Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 28/47] fbdev/core: simplify cursor_state setting in fbcon_ops::cursor() Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 29/47] tty: vt: remove CM_* constants Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 30/47] tty: vt: make consw::con_switch() return a bool Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 31/47] tty: vt: stop using -1 for blank mode in consw::con_blank() Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 32/47] tty: vt: define a common enum for VESA blanking constants Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 33/47] tty: vt: use " Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 34/47] tty: vt: use enum constants for VESA blanking modes Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 35/47] tty: vt: make types around consw::con_blank() bool Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 36/47] tty: vt: make font of consw::con_font_set() const Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 37/47] tty: vt: make consw::con_font_default()'s name const Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 38/47] tty: vt: change consw::con_set_origin() return type Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 39/47] fbcon: remove consw::con_screen_pos() Jiri Slaby (SUSE)
2024-01-22 11:03 ` [PATCH v2 42/47] fbcon: remove fbcon_getxy() Jiri Slaby (SUSE)
2024-01-22 20:00 ` [PATCH v2 00/47] tty: vt: cleanup and documentation Helge Deller
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