m1/patches/: added milkymist-videoformat.patch (posted Fri Nov 25)

m1/patches/rtems/milkymist-videoformat.patch

@@ -0,0 +1,117 @@
+Date: Fri, 25 Nov 2011 16:22:29 +0100
+From: S?bastien Bourdeauducq <sebastien@milkymist.org>
+To: "Milkymist One, Milkymist SoC and Flickernoise developers' list"
+        <devel@lists.milkymist.org>
+Subject: [Milkymist-devel] RTEMS patch for video formats
+
+[-- Attachment #1 --]
+[-- Type: text/plain, Encoding: 7bit, Size: 0.5K --]
+
+Hi,
+
+The attached patch implements RTEMS driver support for different video
+formats.
+
+S-Video and Component are untested, because I do not have suitable
+sources. However, when using these modes, feeding the composite signal
+into the Y input gives a greyscale picture, so they likely work.
+
+I'm also sending a screenshot of the new video input settings dialog.
+When in composite mode, I'm planning to add keyboard shortcuts to
+switch between the 3 inputs live.
+
+S.
+
+Index: rtems/c/src/lib/libbsp/lm32/shared/milkymist_video/milkymist_video.h
+===================================================================
+--- rtems.orig/c/src/lib/libbsp/lm32/shared/milkymist_video/milkymist_video.h	2011-08-01 10:48:40.000000000 -0300
++++ rtems/c/src/lib/libbsp/lm32/shared/milkymist_video/milkymist_video.h	2011-11-26 01:09:16.000000000 -0300
+@@ -8,7 +8,7 @@
+  *
+  *  $Id: milkymist_video.h,v 1.1 2011/08/01 13:48:40 joel Exp $
+  *
+- *  COPYRIGHT (c) 2010 Sebastien Bourdeauducq
++ *  COPYRIGHT (c) 2010, 2011 Sebastien Bourdeauducq
+  */
+ 
+ #ifndef __MILKYMIST_VIDEO_H_
+@@ -33,6 +33,16 @@
+ #define VIDEO_SET_REGISTER     0x5609
+ #define VIDEO_GET_REGISTER     0x560a
+ 
++#define VIDEO_SET_FORMAT       0x560b
++
++enum {
++  VIDEO_FORMAT_CVBS6 = 0,
++  VIDEO_FORMAT_CVBS5,
++  VIDEO_FORMAT_CVBS4,
++  VIDEO_FORMAT_SVIDEO,
++  VIDEO_FORMAT_COMPONENT,
++};
++
+ rtems_device_driver video_initialize(
+   rtems_device_major_number major,
+   rtems_device_minor_number minor,
+Index: rtems/c/src/lib/libbsp/lm32/shared/milkymist_video/video.c
+===================================================================
+--- rtems.orig/c/src/lib/libbsp/lm32/shared/milkymist_video/video.c	2011-08-01 10:48:40.000000000 -0300
++++ rtems/c/src/lib/libbsp/lm32/shared/milkymist_video/video.c	2011-11-26 01:09:16.000000000 -0300
+@@ -267,6 +267,37 @@
+   );
+ }
+ 
++static void set_format(int format)
++{
++  switch(format) {
++    case VIDEO_FORMAT_CVBS6:
++      write_reg(0x00, 0x00);
++      write_reg(0xc3, 0x05);
++      write_reg(0xc4, 0x80);
++      break;
++    case VIDEO_FORMAT_CVBS5:
++      write_reg(0x00, 0x00);
++      write_reg(0xc3, 0x0d);
++      write_reg(0xc4, 0x80);
++      break;
++    case VIDEO_FORMAT_CVBS4:
++      write_reg(0x00, 0x00);
++      write_reg(0xc3, 0x04);
++      write_reg(0xc4, 0x80);
++      break;
++    case VIDEO_FORMAT_SVIDEO:
++      write_reg(0x00, 0x06);
++      write_reg(0xc3, 0xd5);
++      write_reg(0xc4, 0x80);
++      break;
++    case VIDEO_FORMAT_COMPONENT:
++      write_reg(0x00, 0x09);
++      write_reg(0xc3, 0x45);
++      write_reg(0xc4, 0x8d);
++      break;
++  }
++}
++
+ rtems_device_driver video_control(
+   rtems_device_major_number major,
+   rtems_device_minor_number minor,
+@@ -333,7 +364,7 @@
+       break;
+     
+     case VIDEO_SET_REGISTER:
+-      write_reg(((unsigned int )a & 0xffff0000) >> 16,
++      write_reg(((unsigned int)a & 0xffff0000) >> 16,
+         (unsigned int)a & 0x0000ffff);
+       sc = RTEMS_SUCCESSFUL;
+       break;
+@@ -342,6 +373,11 @@
+       sc = RTEMS_SUCCESSFUL;
+       break;
+     
++    case VIDEO_SET_FORMAT:
++      set_format((int)a);
++      sc = RTEMS_SUCCESSFUL;
++      break;
++    
+     default:
+       sc = RTEMS_UNSATISFIED;
+       break;

m1/patches/rtems/series

@@ -5,3 +5,4 @@ coremsgsubmit-race.patch
 milkymist-new-uart.patch
 fix-sysconf-includes.patch
 milkymist-map-sysfreq.patch
+milkymist-videoformat.patch