[PATCH v2 1/1] cmd: add serial console support for the cls command
Currently the cls command does not support the serial console
The screen can be cleared in the video uclass, the colored frame buffer console, and the serial console by sending the same escape sequence. This reduces the cls command to a single printf() statement on most boards.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- v2: support cls with CONFIG_DM_VIDEO=y and CONFIG_VIDEO_ANSI=n --- cmd/cls.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/cmd/cls.c b/cmd/cls.c index eab4e6993b..b411fc1eb1 100644 --- a/cmd/cls.c +++ b/cmd/cls.c @@ -11,12 +11,16 @@ #include <lcd.h> #include <video.h>
+#define CSI "\x1b[" + static int do_video_clear(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { -#if defined(CONFIG_DM_VIDEO) - struct udevice *dev; + __maybe_unused struct udevice *dev;
+ /* Send clear screen and home */ + printf(CSI "2J" CSI "1;1H"); +#if defined(CONFIG_DM_VIDEO) && !defined(CONFIG_VIDEO_ANSI) if (uclass_first_device_err(UCLASS_VIDEO, &dev)) return CMD_RET_FAILURE;
On Fri, 11 Feb 2022 at 10:11, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
Currently the cls command does not support the serial console
The screen can be cleared in the video uclass, the colored frame buffer console, and the serial console by sending the same escape sequence. This reduces the cls command to a single printf() statement on most boards.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com
v2: support cls with CONFIG_DM_VIDEO=y and CONFIG_VIDEO_ANSI=n
cmd/cls.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
(would be better with if() instead of #if)
diff --git a/cmd/cls.c b/cmd/cls.c index eab4e6993b..b411fc1eb1 100644 --- a/cmd/cls.c +++ b/cmd/cls.c @@ -11,12 +11,16 @@ #include <lcd.h> #include <video.h>
+#define CSI "\x1b["
static int do_video_clear(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { -#if defined(CONFIG_DM_VIDEO)
struct udevice *dev;
__maybe_unused struct udevice *dev;/* Send clear screen and home */printf(CSI "2J" CSI "1;1H");+#if defined(CONFIG_DM_VIDEO) && !defined(CONFIG_VIDEO_ANSI) if (uclass_first_device_err(UCLASS_VIDEO, &dev)) return CMD_RET_FAILURE;
-- 2.34.1
On 2/11/22 21:29, Simon Glass wrote:
On Fri, 11 Feb 2022 at 10:11, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
Currently the cls command does not support the serial console
The screen can be cleared in the video uclass, the colored frame buffer console, and the serial console by sending the same escape sequence. This reduces the cls command to a single printf() statement on most boards.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com
v2: support cls with CONFIG_DM_VIDEO=y and CONFIG_VIDEO_ANSI=n
cmd/cls.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
(would be better with if() instead of #if)
This is not possible because you chose to give two functions with a different number of parameters the same name (video_clear()).
Best regards
Heinrich
diff --git a/cmd/cls.c b/cmd/cls.c index eab4e6993b..b411fc1eb1 100644 --- a/cmd/cls.c +++ b/cmd/cls.c @@ -11,12 +11,16 @@ #include <lcd.h> #include <video.h>
+#define CSI "\x1b["
- static int do_video_clear(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) {
-#if defined(CONFIG_DM_VIDEO)
struct udevice *dev;
__maybe_unused struct udevice *dev;/* Send clear screen and home */printf(CSI "2J" CSI "1;1H");+#if defined(CONFIG_DM_VIDEO) && !defined(CONFIG_VIDEO_ANSI) if (uclass_first_device_err(UCLASS_VIDEO, &dev)) return CMD_RET_FAILURE;
-- 2.34.1
Hi Heinrich,
On Fri, 11 Mar 2022 at 00:06, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
On 2/11/22 21:29, Simon Glass wrote:
On Fri, 11 Feb 2022 at 10:11, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
Currently the cls command does not support the serial console
The screen can be cleared in the video uclass, the colored frame buffer console, and the serial console by sending the same escape sequence. This reduces the cls command to a single printf() statement on most boards.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com
v2: support cls with CONFIG_DM_VIDEO=y and CONFIG_VIDEO_ANSI=n
cmd/cls.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
(would be better with if() instead of #if)
This is not possible because you chose to give two functions with a different number of parameters the same name (video_clear()).
Yes that is bad, but I sent a series to remove cfb_console:
https://patchwork.ozlabs.org/project/uboot/list/?series=282367
Regards, Simon
On 3/12/22 06:02, Simon Glass wrote:
Hi Heinrich,
On Fri, 11 Mar 2022 at 00:06, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
On 2/11/22 21:29, Simon Glass wrote:
On Fri, 11 Feb 2022 at 10:11, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
Currently the cls command does not support the serial console
The screen can be cleared in the video uclass, the colored frame buffer console, and the serial console by sending the same escape sequence. This reduces the cls command to a single printf() statement on most boards.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com
v2: support cls with CONFIG_DM_VIDEO=y and CONFIG_VIDEO_ANSI=n
cmd/cls.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
(would be better with if() instead of #if)
This is not possible because you chose to give two functions with a different number of parameters the same name (video_clear()).
Yes that is bad, but I sent a series to remove cfb_console:
https://patchwork.ozlabs.org/project/uboot/list/?series=282367
There still remains:
In lcd.h there is an #ifndef CONFIG_DM_VIDEO hiding the definition of lcd_clear().
Best regards
Heinrich
Regards, Simon
Hi Heinrich,
On Sat, 12 Mar 2022 at 05:05, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
On 3/12/22 06:02, Simon Glass wrote:
Hi Heinrich,
On Fri, 11 Mar 2022 at 00:06, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
On 2/11/22 21:29, Simon Glass wrote:
On Fri, 11 Feb 2022 at 10:11, Heinrich Schuchardt heinrich.schuchardt@canonical.com wrote:
Currently the cls command does not support the serial console
The screen can be cleared in the video uclass, the colored frame buffer console, and the serial console by sending the same escape sequence. This reduces the cls command to a single printf() statement on most boards.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com
v2: support cls with CONFIG_DM_VIDEO=y and CONFIG_VIDEO_ANSI=n
cmd/cls.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
(would be better with if() instead of #if)
This is not possible because you chose to give two functions with a different number of parameters the same name (video_clear()).
Yes that is bad, but I sent a series to remove cfb_console:
https://patchwork.ozlabs.org/project/uboot/list/?series=282367
There still remains:
In lcd.h there is an #ifndef CONFIG_DM_VIDEO hiding the definition of lcd_clear().
OK, well you can drop that if you like. I cannot see why the #iifdef is needed there.
I am waiting for the video series to go in but can do a series to remove the LCD stuff after that.
Regards, Simon
participants (2)
-
Heinrich Schuchardt -
Simon Glass