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authordingjingmaster2020-09-24 20:40:56 +0800
committerdingjingmaster2020-09-24 20:40:56 +0800
commit1872ea3a3b8c1bc9f696c250675064569e438f2b (patch)
tree0777f88509464742455290aa77923bd182ad52bf /0511-bootsplash.patch
downloadaur-1872ea3a3b8c1bc9f696c250675064569e438f2b.tar.gz
yay
Diffstat (limited to '0511-bootsplash.patch')
-rw-r--r--0511-bootsplash.patch129
1 files changed, 129 insertions, 0 deletions
diff --git a/0511-bootsplash.patch b/0511-bootsplash.patch
new file mode 100644
index 00000000000..8e87eb46318
--- /dev/null
+++ b/0511-bootsplash.patch
@@ -0,0 +1,129 @@
+diff --git a/Documentation/ABI/testing/sysfs-platform-bootsplash b/Documentation/ABI/testing/sysfs-platform-bootsplash
+index 742c7b035ded..f8f4b259220e 100644
+--- a/Documentation/ABI/testing/sysfs-platform-bootsplash
++++ b/Documentation/ABI/testing/sysfs-platform-bootsplash
+@@ -9,3 +9,35 @@ Description:
+ 1: Splash is shown whenever fbcon would show a text console
+ (i.e. no graphical application is running), and a splash
+ file is loaded.
++
++What: /sys/devices/platform/bootsplash.0/drop_splash
++Date: Oct 2017
++KernelVersion: 4.14
++Contact: Max Staudt <mstaudt@suse.de>
++Description:
++ Can only be set.
++
++ Any value written will cause the current splash theme file
++ to be unloaded and the text console to be redrawn.
++
++What: /sys/devices/platform/bootsplash.0/load_file
++Date: Oct 2017
++KernelVersion: 4.14
++Contact: Max Staudt <mstaudt@suse.de>
++Description:
++ Can only be set.
++
++ Any value written will cause the splash to be disabled and
++ internal memory structures to be freed.
++
++ A firmware path written will cause a new theme file to be
++ loaded and the current bootsplash to be replaced.
++ The current enabled/disabled status is not touched.
++ If the splash is already active, it will be redrawn.
++
++ The path has to be a path in /lib/firmware since
++ request_firmware() is used to fetch the data.
++
++ When setting the splash from the shell, echo -n has to be
++ used as any trailing '\n' newline will be interpreted as
++ part of the path.
+diff --git a/Documentation/bootsplash.rst b/Documentation/bootsplash.rst
+index 611f0c558925..b35aba5093e8 100644
+--- a/Documentation/bootsplash.rst
++++ b/Documentation/bootsplash.rst
+@@ -67,6 +67,14 @@ sysfs run-time configuration
+ a splash theme file is also loaded.
+
+
++``/sys/devices/platform/bootsplash.0/drop_splash``
++ Unload splash data and free memory.
++
++``/sys/devices/platform/bootsplash.0/load_file``
++ Load a splash file from ``/lib/firmware/``.
++ Note that trailing newlines will be interpreted as part of the file name.
++
++
+
+ Kconfig
+ =======
+diff --git a/drivers/video/fbdev/core/bootsplash.c b/drivers/video/fbdev/core/bootsplash.c
+index 13fcaabbc2ca..16cb0493629d 100644
+--- a/drivers/video/fbdev/core/bootsplash.c
++++ b/drivers/video/fbdev/core/bootsplash.c
+@@ -251,11 +251,65 @@ static ssize_t splash_store_enabled(struct device *device,
+ return count;
+ }
+
++static ssize_t splash_store_drop_splash(struct device *device,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct splash_file_priv *fp;
++
++ if (!buf || !count || !splash_state.file)
++ return count;
++
++ mutex_lock(&splash_state.data_lock);
++ fp = splash_state.file;
++ splash_state.file = NULL;
++ mutex_unlock(&splash_state.data_lock);
++
++ /* Redraw the text console */
++ schedule_work(&splash_state.work_redraw_vc);
++
++ bootsplash_free_file(fp);
++
++ return count;
++}
++
++static ssize_t splash_store_load_file(struct device *device,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct splash_file_priv *fp, *fp_old;
++
++ if (!count)
++ return 0;
++
++ fp = bootsplash_load_firmware(&splash_state.splash_device->dev,
++ buf);
++
++ if (!fp)
++ return -ENXIO;
++
++ mutex_lock(&splash_state.data_lock);
++ fp_old = splash_state.file;
++ splash_state.splash_fb = NULL;
++ splash_state.file = fp;
++ mutex_unlock(&splash_state.data_lock);
++
++ /* Update the splash or text console */
++ schedule_work(&splash_state.work_redraw_vc);
++
++ bootsplash_free_file(fp_old);
++ return count;
++}
++
+ static DEVICE_ATTR(enabled, 0644, splash_show_enabled, splash_store_enabled);
++static DEVICE_ATTR(drop_splash, 0200, NULL, splash_store_drop_splash);
++static DEVICE_ATTR(load_file, 0200, NULL, splash_store_load_file);
+
+
+ static struct attribute *splash_dev_attrs[] = {
+ &dev_attr_enabled.attr,
++ &dev_attr_drop_splash.attr,
++ &dev_attr_load_file.attr,
+ NULL
+ };
+