From f1ecfeb6dad97c5f2ec30e861e94aa90fcbefe22 Mon Sep 17 00:00:00 2001
From: vanhofen <vanhofen@gmx.de>
Date: Fri, 25 Nov 2022 21:55:08 +0100
Subject: [PATCH] - graphlcd-base: add SetBrightness() patch my maxwiesel

---
 package/graphlcd-base/graphlcd-base.mk        |  4 ++
 .../0006-graphlcd-e4hdultra-conf.patch-custom |  2 +-
 .../0007-graphlcd-protek4k-conf.patch-custom  |  2 +-
 ...framebuffer-add-SetBrightness.patch-custom | 45 +++++++++++++++++++
 4 files changed, 51 insertions(+), 2 deletions(-)
 create mode 100644 package/graphlcd-base/patches/0008-framebuffer-add-SetBrightness.patch-custom

diff --git a/package/graphlcd-base/graphlcd-base.mk b/package/graphlcd-base/graphlcd-base.mk
index a2317318..dce4f4b7 100644
--- a/package/graphlcd-base/graphlcd-base.mk
+++ b/package/graphlcd-base/graphlcd-base.mk
@@ -23,6 +23,10 @@ ifeq ($(BOXMODEL),$(filter $(BOXMODEL),protek4k))
 GRAPHLCD_BASE_PATCH_CUSTOM = 0007-graphlcd-protek4k-conf.patch-custom
 endif
 
+ifeq ($(BOXMODEL),$(filter $(BOXMODEL),e4hdultra protek4k))
+GRAPHLCD_BASE_PATCH_CUSTOM = 0008-framebuffer-add-SetBrightness.patch-custom
+endif
+
 GRAPHLCD_BASE_MAKE_ENV = \
 	$(TARGET_CONFIGURE_ENV)
 
diff --git a/package/graphlcd-base/patches/0006-graphlcd-e4hdultra-conf.patch-custom b/package/graphlcd-base/patches/0006-graphlcd-e4hdultra-conf.patch-custom
index 378af39a..5a153b40 100644
--- a/package/graphlcd-base/patches/0006-graphlcd-e4hdultra-conf.patch-custom
+++ b/package/graphlcd-base/patches/0006-graphlcd-e4hdultra-conf.patch-custom
@@ -9,8 +9,8 @@ index 270cae8..d256e4b 100644
 +[e4hdultra]
 +# Default for e4hdultra
 +Driver=framebuffer
-+Device=/dev/fb1
 +Zoom=0
++Device=/dev/fb1
 +
  [ax206dpf]
  #  THIS IS AN EXPERIMENTAL DRIVER!
diff --git a/package/graphlcd-base/patches/0007-graphlcd-protek4k-conf.patch-custom b/package/graphlcd-base/patches/0007-graphlcd-protek4k-conf.patch-custom
index 93e1c1c2..619142aa 100644
--- a/package/graphlcd-base/patches/0007-graphlcd-protek4k-conf.patch-custom
+++ b/package/graphlcd-base/patches/0007-graphlcd-protek4k-conf.patch-custom
@@ -9,8 +9,8 @@ index 270cae8..d256e4b 100644
 +[protek4k]
 +# Default for protek4k
 +Driver=framebuffer
-+Device=/dev/fb1
 +Zoom=0
++Device=/dev/fb1
 +
  [ax206dpf]
  #  THIS IS AN EXPERIMENTAL DRIVER!
diff --git a/package/graphlcd-base/patches/0008-framebuffer-add-SetBrightness.patch-custom b/package/graphlcd-base/patches/0008-framebuffer-add-SetBrightness.patch-custom
new file mode 100644
index 00000000..9da90623
--- /dev/null
+++ b/package/graphlcd-base/patches/0008-framebuffer-add-SetBrightness.patch-custom
@@ -0,0 +1,45 @@
+--- a/glcddrivers/framebuffer.c
++++ b/glcddrivers/framebuffer.c
+@@ -24,6 +24,18 @@
+ #include "config.h"
+ #include "framebuffer.h"
+ 
++int proc_put(const char *path, const char *value, const int len)
++{
++	int ret, ret2;
++	int pfd = open(path, O_WRONLY);
++	if (pfd < 0)
++		return pfd;
++	ret = write(pfd, value, len);
++	ret2 = close(pfd);
++	if (ret2 < 0)
++		return ret2;
++	return ret;
++}
+ 
+ namespace GLCD
+ {
+@@ -443,4 +455,13 @@
+     bbox[3] = 0;
+ }
+ 
++void cDriverFramebuffer::SetBrightness(unsigned int dimm)
++{
++	std::string value = std::to_string((int)(255*dimm*10/100));
++	if (access("/proc/stb/lcd/oled_brightness", F_OK) == 0)
++		proc_put("/proc/stb/lcd/oled_brightness", value.c_str(), value.length());
++	else if (access("/proc/stb/fp/oled_brightness", F_OK) == 0)
++		proc_put("/proc/stb/fp/oled_brightness", value.c_str(), value.length());
++}
++
+ } // end of namespace
+--- a/glcddrivers/framebuffer.h
++++ b/glcddrivers/framebuffer.h
+@@ -53,6 +53,7 @@
+     virtual void SetPixel(int x, int y, uint32_t data);
+     //virtual void Set8Pixels(int x, int y, unsigned char data);
+     virtual void Refresh(bool refreshAll = false);
++    virtual void SetBrightness(unsigned int);
+ };
+ 
+ } // end of namespace