[xburst] fb: Fix pseudo palette for non 32bit color depth.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21614 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/xburst/patches-2.6.34/051-fb.patch b/target/linux/xburst/patches-2.6.34/051-fb.patch
index ca086cc..9464562 100644 (file)
--- a/target/linux/xburst/patches-2.6.34/051-fb.patch
+++ b/target/linux/xburst/patches-2.6.34/051-fb.patch
@@ -1,4 +1,4 @@
-From 4b85f4f65855e49dec6271cf35efdcee26534210 Mon Sep 17 00:00:00 2001
+From bde0c6e017734b3164f5e3517d8e9373433b0cee Mon Sep 17 00:00:00 2001
 From: Lars-Peter Clausen <lars@metafoo.de>
 Date: Sat, 24 Apr 2010 12:13:58 +0200
 Subject: [PATCH] Add jz4740 framebuffer driver
@@ -6,9 +6,9 @@ Subject: [PATCH] Add jz4740 framebuffer driver
 ---
  drivers/video/Kconfig     |    9 +
  drivers/video/Makefile    |    1 +
- drivers/video/jz4740_fb.c |  810 +++++++++++++++++++++++++++++++++++++++++++++
+ drivers/video/jz4740_fb.c |  822 +++++++++++++++++++++++++++++++++++++++++++++
  include/linux/jz4740_fb.h |   58 ++++
- 4 files changed, 878 insertions(+), 0 deletions(-)
+ 4 files changed, 890 insertions(+), 0 deletions(-)
  create mode 100644 drivers/video/jz4740_fb.c
  create mode 100644 include/linux/jz4740_fb.h
 
@@ -46,13 +46,13 @@ index ddc2af2..f56a9ca 100644
  obj-$(CONFIG_FB_UVESA)            += uvesafb.o
 diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
 new file mode 100644
-index 0000000..53f3adb
+index 0000000..8bb0cb4
 --- /dev/null
 +++ b/drivers/video/jz4740_fb.c
-@@ -0,0 +1,810 @@
+@@ -0,0 +1,822 @@
 +/*
 + *  Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
-+ *            JZ4720/JZ4740 SoC LCD framebuffer driver
++ *            JZ4740 SoC LCD framebuffer driver
 + *
 + *  This program is free software; you can redistribute        it and/or modify it
 + *  under  the terms of        the GNU General  Public License as published by the
@@ -185,17 +185,17 @@ index 0000000..53f3adb
 +      unsigned is_enabled:1;
 +      struct mutex lock;
 +
-+      uint32_t pseudo_palette[256];
++      uint32_t pseudo_palette[16];
 +};
 +
 +static struct fb_fix_screeninfo jzfb_fix __devinitdata = {
-+      .id =           "JZ4740 FB",
-+      .type =         FB_TYPE_PACKED_PIXELS,
-+      .visual =       FB_VISUAL_TRUECOLOR,
-+      .xpanstep =     0,
-+      .ypanstep =     0,
-+      .ywrapstep =    0,
-+      .accel =        FB_ACCEL_NONE,
++      .id             = "JZ4740 FB",
++      .type           = FB_TYPE_PACKED_PIXELS,
++      .visual         = FB_VISUAL_TRUECOLOR,
++      .xpanstep       = 0,
++      .ypanstep       = 0,
++      .ywrapstep      = 0,
++      .accel          = FB_ACCEL_NONE,
 +};
 +
 +const static struct jz_gpio_bulk_request jz_lcd_ctrl_pins[] = {
@@ -258,7 +258,7 @@ index 0000000..53f3adb
 +              num = 16;
 +              break;
 +      case JZ_LCD_TYPE_GENERIC_18_BIT:
-+              num = 19;
++              num = 18;
 +              break;
 +      case JZ_LCD_TYPE_8BIT_SERIAL:
 +              num = 8;
@@ -273,10 +273,24 @@ index 0000000..53f3adb
 +static int jzfb_setcolreg(unsigned regno, unsigned red, unsigned green,
 +                      unsigned blue, unsigned transp, struct fb_info *fb)
 +{
-+      if (regno >= fb->cmap.len)
++      uint32_t color;
++
++      if (regno >= 16)
 +              return -EINVAL;
 +
-+      ((uint32_t *)fb->pseudo_palette)[regno] = red << 16 | green << 8 | blue;
++#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
++      red = CNVT_TOHW(red, fb->var.red.length);
++      green = CNVT_TOHW(green, fb->var.green.length);
++      blue = CNVT_TOHW(blue, fb->var.blue.length);
++      transp = CNVT_TOHW(transp, fb->var.transp.length);
++#undef CNVT_TOHW
++
++      color = (red << fb->var.red.offset) |
++              (green << fb->var.green.offset) |
++              (blue << fb->var.blue.offset) |
++              (transp << fb->var.transp.offset);
++
++      ((uint32_t*)(fb->pseudo_palette))[regno] = color;
 +
 +      return 0;
 +}
@@ -336,7 +350,7 @@ index 0000000..53f3adb
 +      case 16:
 +              var->red.offset = 11;
 +              var->red.length = 5;
-+              var->green.offset = 6;
++              var->green.offset = 5;
 +              var->green.length = 6;
 +              var->blue.offset = 0;
 +              var->blue.length = 5;
@@ -836,7 +850,6 @@ index 0000000..53f3adb
 +static struct platform_driver jzfb_driver = {
 +      .probe = jzfb_probe,
 +      .remove = __devexit_p(jzfb_remove),
-+
 +      .driver = {
 +              .name = "jz4740-fb",
 +              .pm = JZFB_PM_OPS,
@@ -859,7 +872,6 @@ index 0000000..53f3adb
 +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
 +MODULE_DESCRIPTION("JZ4720/JZ4740 SoC LCD framebuffer driver");
 +MODULE_ALIAS("platform:jz4740-fb");
-+MODULE_ALIAS("platform:jz4720-fb");
 diff --git a/include/linux/jz4740_fb.h b/include/linux/jz4740_fb.h
 new file mode 100644
 index 0000000..ab4c963