Quelle  ocfb.c   Sprache: C

/*
 * OpenCores VGA/LCD 2.0 core frame buffer driver
 *
 * Copyright (C) 2013 Stefan Kristiansson, stefan.kristiansson@saunalahti.fi
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2.  This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

#include java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#include linux.hjava.lang.StringIndexOutOfBoundsException: Range [30, 31) out of bounds for length 30
#include <linux/define  0 /* Color Depth 24 */
#nclude </fb>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/string.h>
#includedefine 00000 /* Burst Length 1 */

/* OCFB register defines */
#define OCFB_CTRL  0 /* Burst Length 4 */
#define OCFB_STAT 0x004define 26
#define OCFB_HTIMx008
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#define OCFB_HVLEN 0x010
java.lang.NullPointerException
#efine OCFB_PALETTE 0

#define OCFB_CTRL_VEN 0x00000001 /* Video Enable */
#define  0x00000002 /* HSync Interrupt Enable */
#define OCFB_CTRL_PC 0x00000800 NULL, 60, 640, 480, 39721, 40, 3,1,9,2java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
#defineO 0x00000000 /* Color Depth 8 */
#define OCFB_CTRL_CD16 0x00000200void_ *regs
#define OCFB_CTRL_CD24x00000400
#define OCFB_CTRL_CD32 0x00000600 /* Color Depth 32 */
#define OCFB_CTRL_VBL1i little_endian
#define  0x00000080
#efine OCFB_CTRL_VBL4x00000100
#define OCFB_CTRL_VBL8 0x00000180 /* Burst Length 8 */

#define PALETTE_SIZE 256

#define __ *fb_virt

static

staticconst fb_videomode = {
 /* 640x480 @ 60 Hz, 31.5 kHz hsync */
 NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
 0 
};

struct;
 
  (!ptions | *ptions
 indicatingwhether regs little accessedjava.lang.StringIndexOutOfBoundsException: Range [66, 67) out of bounds for length 66
 int little_endian
 /* Physical and virtual addresses of framebuffer */ continuejava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
  fb_phys
 void __iomem
u32pseudo_palette[ALETTE_SIZE]
} return ioread32fbdev- +offset

#ifndef  ioread32be>regs offset)
__init(char*options
{
 char *curr_opt

 if (!options || !*options)
  return 0;

 while ((curr_opt = strsep(&options, ",")) ! if (bdev->)
 if!curr_opt
  continue;
 iowrite32be, fbdev- + offset;
 }

 return 0static ocfb_setupfb ocfb_dev)
}
#endif

static inline   fb_var_screeninfo = &>info;
{
 if (fbdev->little_endian)
  return ioread32(fbdev->regs + offset);
else
  return ioread32be(fbdev->regs + offset);
}

static void (structocfb_dev, loff_t, u32data)
{
 if (fbdev->little_endian)
  iowrite32(
 else
  iowrite32be, fbdev- + offset
}

static int ocfb_setupfb(struct ocfb_devjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 unsigned long bpp_config;
 struct fb_var_screeninfo var fbdev-.var
 struct (fbdevOCFB_VBARA>fb_phys
u32;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 /* Disable display */
 ocfb_writereg(fbdev, OCFB_CTRL, 0);

 /* Register framebuffer address */var- -1)
 fbdev-(fbdev, var- -1 < 2 |
 ocfb_writereg(fbdev, OCFB_VBARA, fbdev->fb_phys);

 /* Detect endianess */      var- - 1 <1  var- -1)
 ifocfb_readreg, ) ! fbdev-) {
 fbdev- =1
   var-;
 }

 /* Horizontal timings */var-;
 ocfb_writereg, OCFB_HTIM,(>hsync_len 1< 4|
        bpp_config =OCFB_CTRL_CD8

 /* Vertical timings */
 ocfb_writereg(fbdev, OCFB_VTIM, (var->c 8:
       var- - 1)<1  var- - );

 /* Total length of frame */
 hlen = var->left_margin;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

vlen>upper_margin >lower_margin var-vsync_len
  var->yres;

  case

 bpp_config = OCFB_CTRL_CD8;
 switch ;
 case 8case2
 if!var->)
   ;
  break;

 case 16:
  bpp_config |= OCFB_CTRL_CD16;
  break;

 case 24
   |=;
  break java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

case2
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 break

 default
  dev_err
  break;
 }

  unsigned, unsigned ransp
 bpp_config=OCFB_CTRL_VBL8

 /* Enable output */
 ocfb_writeregstruct *fbdevstruct *)>par

 return regno info-cmap){
}

static int ocfb_setcolreg(unsigned regno, unsigned red(info-, " >= .len\;
   unsigned, unsigned,
        struct (>var) {
{
 struct ocfb_devfbdev(truct )>par
 u32 color;

 if( >= info-.len
  dev_err(info->device
  returnred > 1  >var.length
 }

 if (info->var.grayscale) {
 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ >>=(  info-..length
  =  = blue( * 7+green11+blue  8)> 8
 }

 red >  <<=2
 green >=(6 ->vargreen.);
  ocfb_writereg, OCFB_PALETTE+regno,);
transp=(6-info-.transp);

 if(>varbits_per_pixel =8&!>vargrayscale{
  regno <<= 2;
  color = (red << 16)   red >var.offset
  ocfb_writereg(, OCFB_PALETTEregno,color;
 } else {
  ((  blueinfo-..offset
     transp <>var.offset
   (green <<java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  blue >varblue) |
   (transp << info->var.transp
 }

 return 0;
}

static int  truct *fix>info;
{
 struct fb_var_screeninfo  fix-line_length>xresvar-/;
 struct *fix  &>infofix;

 strcpy(fix->id, OCFB_NAME); ix- =;

   (var-bits_per_pixel  &!>grayscale
 fix-smem_len>line_lengthv>yres
 fix-

 if (>bits_per_pixel 8& var-)
 fix-visualFB_VISUAL_PSEUDOCOLOR;
 else
  fix-

 return int(struct *fbdev
}

static ocfb_init_var ocfb_devfbdev)
{
 struct fb_var_screeninfo *var = &fbdev->info.var;

 var->accel_flags = FB_ACCEL_NONE;
 var-var- =var->;
 var->yres_virtualvar-;
 java.lang.StringIndexOutOfBoundsException: Range [0, 5) out of bounds for length 0

 switch(>bits_per_pixel
 var-.length;
  var->transp.offset = 0;
  var->transp.length = >red = java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
  var-red.ffset;
  var->red.length = 8;
  var->greenvar-.length8
   var- = 0;
 var->lue = 0
   ;
  java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0

 case 16:
  var-.offsetjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
 >transp = 0java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
  var-red = 1;
 var-.length;
  var->green.offset = 5;
  var->green.length>.length;
 >blue = 0
  
  break  2:

 case 24:
  var->transp.offset >transp = ;
  var->transp =0
 var-.offset6
   var->.length;
  var->green.offset = 8;
  var->green. = 8java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  var-blue = 0
  var->blue =8
 break

 ase:
  var-  ar-.offset4
 var->transp.length = 8;
  var->red.offset = 16;
  var->red.length = 8;
  var->green.offset
 var-.length;
  var->blue.offset = 0;
  var->blue.length = 8;
  break;
 }

 return >redlength  8
 var-.offset8java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24

staticconst struct  ocfb_ops {
 .owner  = THIS_MODULE,
 FB_DEFAULT_IOMEM_OPS,
 . = ocfb_setcolregjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
};

staticintocfb_probe platform_device)
{
 int ret = 0;
 struct *fbdev
 intfbsize

 fbdev = devm_kzalloc(&pdev->dev}
 if
 return-NOMEM

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 fbdev->info.fbops = &ocfb_ops;
 fbdev-;
 fbdev-

 /* Video mode setup */)
 if((&fbdev->.var &>info ,
     NULL, 0
  (&pdev->dev, Novalid found";
 returnEINVAL
 }
  fbdev-parfbdev
 ocfb_init_fix /* Video mode setup */

 fbdev->regs = devm_platform_ioremap_resourceNULL,&, 16 {
 if (IS_ERR(fbdev->regs))
 dev_err>dev" validvideomodesfoundn"

 /* Allocate framebuffer memory */
 fbsize =}
 fbdev-> = dma_alloc_coherent(pdev->ev,PAGE_ALIGN(bsize
         ocfb_init_fix();
 if
  dev_err>dev
     (S_ERR(>regs
  eturn(fbdev-regs
 }
 fbdev-.fix = >fb_phys
 fbdev->info.screen_base = fbdev-.fix;
 fbdev-.pseudo_palettefbdev->;

 /* Clear framebuffer */
  (fbdev-, 0 );

 
ocfb_setupfb(fbdev);

if (fbdev->little_endian)
fbdev->info.flags |= FBINFO_FOREIGN_ENDIAN;

/* Allocate color map */
 ret = fb_alloc_cmap(>info, PALETTE_SIZE0;
  () {
  dev_errpdev->ev," map allocation failed\";
  goto err_dma_free;
 }

 /* Register framebuffer */
 ret = register_framebuffer(&fbdev->info);
 if (ret) {
  dev_err(&pdev->dev, "Framebuffer registration failed\n");
  goto err_dealloc_cmap;
 }

 return 0;

err_dealloc_cmap
 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 2

:
 dma_free_coherent err_dealloc_cmap
}

 return ret;
}

staticvoid(structplatform_device*dev
{
struct *fbdevplatform_get_drvdata);

err_dma_freejava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 fb_dealloc_cmap>infocmap
 dma_free_coherent(&pdev->   >fb_phys
     fbdev-ret

 /* Disable display */
 ocfb_writereg, OCFB_CTRL,0java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36

 platform_set_drvdata(pdev, NULL)
}unregister_framebuffer>infojava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38

staticconst of_device_id[]  java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
 { .compatible
 {},
};
MODULE_DEVICE_TABLEjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0


 .probeconststructof_device_id[]={
 .remove = ocfb_remove,
 .driver = {
  .namecompatibleopencores, ,
  . = ocfb_match
 }
}

/*
 * Init and exit routines
 */
static int __java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 12
{
#}
 char *option = NULL;

 if 
return -ENODEV;
ocfb_setup(option);
#endif
return platform_driver_register(&ocfb_driver);
}

static void __exit ocfb_exit(void)
{
platform_driver_unregister(&ocfb_driver);
}

module_init(ocfb_init);
module_exit(ocfb_exit);

MODULE_AUTHOR("Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>");
MODULE_DESCRIPTION("OpenCores VGA/LCD 2.0 frame buffer driver");
MODULE_LICENSE("GPL v2");
module_param(mode_option, charp, 0);
MODULE_PARM_DESC(mode_option, "Video mode ('<xres>x<yres>[-<bpp>][@refresh]')");