pm3fb: various fixes
PATCH 3/10 pm3fb: various fixes
From: Krzysztof Helt <[email protected]>
- fix 16-bit RGBA 4444 and 5551 modes (use fbset -rgba to set them)
- kill wmb() after each register write by PM3_SLOW_WRITE_REG
- kill inaccurate comments (leftovers from skeletonfb.c)
- kill PCI class restriction, now it is more general and shorter
- white spaces and other minor fixes and source reducing
Signed-off-by Krzysztof Helt <[email protected]>
Signed-off-by Antonino Daplas <[email protected]>
---
drivers/video/pm3fb.c | 333 ++++++++++++++++++++++--------------------------- 1 files changed, 152 insertions(+), 181 deletions(-)
drivers/video/pm3fb.c +152 -181
@@ -52,11 +52,6 @@ #endifstatic char *mode_option__devinitdata ;/* -* If your driver supports multiple boards, you should make the -* below data types arrays, or allocate them dynamically (using kmalloc()). -*/ - -/* * This structure defines the hardware state of the graphics card. Normally * you place this in a header file in linux/include/video. This file usually * also includes register information. That allows other driver subsystems
@@ -67,7 +62,7 @@ struct pm3_par {unsigned char __iomem *v_regs;/* virtual address of p_regs */ u32 video;/* video flags before blanking */ u32 base;/* screen base (xoffset+yoffset) in 128 bits unit */ -u32 palette[16 ]; +u32 palette[16 ]; };/*
@@ -104,36 +99,28 @@ static inline void PM3_WAIT(struct pm3_pwhile (PM3_READ_REG (par, PM3InFIFOSpace) < n); } -static inline void PM3_SLOW_WRITE_REG (struct pm3_par *par,s32 off,u32 v) -{ -if (par->v_regs) { -mb (); -PM3_WAIT (par,1 ); -wmb (); -PM3_WRITE_REG (par, off, v); - } -} - -static inline void PM3_SET_INDEX (struct pm3_par *par,unsigned index) -{ -PM3_SLOW_WRITE_REG (par, PM3RD_IndexHigh, (index >>8 ) &0xff ); -PM3_SLOW_WRITE_REG (par, PM3RD_IndexLow, index &0xff ); -} -static inline void PM3_WRITE_DAC_REG (struct pm3_par *par,unsigned r,u8 v) { -PM3_SET_INDEX (par, r); +PM3_WAIT (par,3 ); +PM3_WRITE_REG (par, PM3RD_IndexHigh, (r >>8 ) &0xff ); +PM3_WRITE_REG (par, PM3RD_IndexLow, r &0xff );wmb ();PM3_WRITE_REG (par, PM3RD_IndexedData, v); +wmb (); }static inline void pm3fb_set_color (struct pm3_par *par,unsigned char regno,unsigned char r,unsigned char g,unsigned char b) { -PM3_SLOW_WRITE_REG (par, PM3RD_PaletteWriteAddress, regno); -PM3_SLOW_WRITE_REG (par, PM3RD_PaletteData, r); -PM3_SLOW_WRITE_REG (par, PM3RD_PaletteData, g); -PM3_SLOW_WRITE_REG (par, PM3RD_PaletteData, b); +PM3_WAIT (par,4 ); +PM3_WRITE_REG (par, PM3RD_PaletteWriteAddress, regno); +wmb (); +PM3_WRITE_REG (par, PM3RD_PaletteData, r); +wmb (); +PM3_WRITE_REG (par, PM3RD_PaletteData, g); +wmb (); +PM3_WRITE_REG (par, PM3RD_PaletteData, b); +wmb (); } static void pm3fb_clear_colormap(struct pm3_par *par,
@@ -141,7 +128,7 @@ static void pm3fb_clear_colormap(struct {int i; -for (i =0 ; i <256 ; i++)/* fill color map with white */ +for (i =0 ; i <256 ; i++)pm3fb_set_color (par, i, r, g, b); }
@@ -175,19 +162,26 @@ static void pm3fb_calculate_clock(unsign } } -static inline int pm3fb_shift_bpp (unsigned long depth,int v) +static inline int pm3fb_depth (const struct fb_var_screeninfo *var) { -switch (depth) { +if ( var->bits_per_pixel ==16 ) +return var->red.length + var->green.length + + var->blue.length; + +return var->bits_per_pixel; +} + +static inline int pm3fb_shift_bpp (unsigned bpp,int v) +{ +switch (bpp) {case 8 :return (v >>4 ); -case 12 : -case 15 :case 16 :return (v >>3 );case 32 :return (v >>2 ); } -DPRINTK ("Unsupported depth %ld\n" , depth); +DPRINTK ("Unsupported depth %u\n" , bpp);return 0 ; }
@@ -206,56 +200,50 @@ static void pm3fb_write_mode(struct fb_iconst u32 vbend = vsend + info->var.upper_margin;const u32 vtotal = info->var.yres + vbend;const u32 width = (info->var.xres_virtual +7 ) & ~7 ; - -PM3_SLOW_WRITE_REG (par, PM3MemBypassWriteMask,0xffffffff ); -PM3_SLOW_WRITE_REG (par, PM3Aperture0,0x00000000 ); -PM3_SLOW_WRITE_REG (par, PM3Aperture1,0x00000000 ); -PM3_SLOW_WRITE_REG (par, PM3FIFODis,0x00000007 ); - -PM3_SLOW_WRITE_REG (par, PM3HTotal, -pm3fb_shift_bpp (info->var.bits_per_pixel, - htotal -1 )); -PM3_SLOW_WRITE_REG (par, PM3HsEnd, -pm3fb_shift_bpp (info->var.bits_per_pixel, - hsend)); -PM3_SLOW_WRITE_REG (par, PM3HsStart, -pm3fb_shift_bpp (info->var.bits_per_pixel, - hsstart)); -PM3_SLOW_WRITE_REG (par, PM3HbEnd, -pm3fb_shift_bpp (info->var.bits_per_pixel, - hbend)); -PM3_SLOW_WRITE_REG (par, PM3HgEnd, -pm3fb_shift_bpp (info->var.bits_per_pixel, - hbend)); -PM3_SLOW_WRITE_REG (par, PM3ScreenStride, -pm3fb_shift_bpp (info->var.bits_per_pixel, - width)); -PM3_SLOW_WRITE_REG (par, PM3VTotal, vtotal -1 ); -PM3_SLOW_WRITE_REG (par, PM3VsEnd, vsend -1 ); -PM3_SLOW_WRITE_REG (par, PM3VsStart, vsstart -1 ); -PM3_SLOW_WRITE_REG (par, PM3VbEnd, vbend); - -switch (info->var.bits_per_pixel) { +const unsigned bpp = info->var.bits_per_pixel; + +PM3_WAIT (par,20 ); +PM3_WRITE_REG (par, PM3MemBypassWriteMask,0xffffffff ); +PM3_WRITE_REG (par, PM3Aperture0,0x00000000 ); +PM3_WRITE_REG (par, PM3Aperture1,0x00000000 ); +PM3_WRITE_REG (par, PM3FIFODis,0x00000007 ); + +PM3_WRITE_REG (par, PM3HTotal, +pm3fb_shift_bpp (bpp, htotal -1 )); +PM3_WRITE_REG (par, PM3HsEnd, +pm3fb_shift_bpp (bpp, hsend)); +PM3_WRITE_REG (par, PM3HsStart, +pm3fb_shift_bpp (bpp, hsstart)); +PM3_WRITE_REG (par, PM3HbEnd, +pm3fb_shift_bpp (bpp, hbend)); +PM3_WRITE_REG (par, PM3HgEnd, +pm3fb_shift_bpp (bpp, hbend)); +PM3_WRITE_REG (par, PM3ScreenStride, +pm3fb_shift_bpp (bpp, width)); +PM3_WRITE_REG (par, PM3VTotal, vtotal -1 ); +PM3_WRITE_REG (par, PM3VsEnd, vsend -1 ); +PM3_WRITE_REG (par, PM3VsStart, vsstart -1 ); +PM3_WRITE_REG (par, PM3VbEnd, vbend); + +switch (bpp) {case 8 : -PM3_SLOW_WRITE_REG (par, PM3ByAperture1Mode, +PM3_WRITE_REG (par, PM3ByAperture1Mode, PM3ByApertureMode_PIXELSIZE_8BIT); -PM3_SLOW_WRITE_REG (par, PM3ByAperture2Mode, +PM3_WRITE_REG (par, PM3ByAperture2Mode, PM3ByApertureMode_PIXELSIZE_8BIT);break ; -case 12 : -case 15 :case 16 :#ifndef __BIG_ENDIAN -PM3_SLOW_WRITE_REG (par, PM3ByAperture1Mode, +PM3_WRITE_REG (par, PM3ByAperture1Mode, PM3ByApertureMode_PIXELSIZE_16BIT); -PM3_SLOW_WRITE_REG (par, PM3ByAperture2Mode, +PM3_WRITE_REG (par, PM3ByAperture2Mode, PM3ByApertureMode_PIXELSIZE_16BIT);#else -PM3_SLOW_WRITE_REG (par, PM3ByAperture1Mode, +PM3_WRITE_REG (par, PM3ByAperture1Mode, PM3ByApertureMode_PIXELSIZE_16BIT | PM3ByApertureMode_BYTESWAP_BADC); -PM3_SLOW_WRITE_REG (par, PM3ByAperture2Mode, +PM3_WRITE_REG (par, PM3ByAperture2Mode, PM3ByApertureMode_PIXELSIZE_16BIT | PM3ByApertureMode_BYTESWAP_BADC);#endif /* ! __BIG_ENDIAN */
@@ -263,23 +251,22 @@ #endif /* ! __BIG_ENDIAN */case 32 :#ifndef __BIG_ENDIAN -PM3_SLOW_WRITE_REG (par, PM3ByAperture1Mode, +PM3_WRITE_REG (par, PM3ByAperture1Mode, PM3ByApertureMode_PIXELSIZE_32BIT); -PM3_SLOW_WRITE_REG (par, PM3ByAperture2Mode, +PM3_WRITE_REG (par, PM3ByAperture2Mode, PM3ByApertureMode_PIXELSIZE_32BIT);#else -PM3_SLOW_WRITE_REG (par, PM3ByAperture1Mode, +PM3_WRITE_REG (par, PM3ByAperture1Mode, PM3ByApertureMode_PIXELSIZE_32BIT | PM3ByApertureMode_BYTESWAP_DCBA); -PM3_SLOW_WRITE_REG (par, PM3ByAperture2Mode, +PM3_WRITE_REG (par, PM3ByAperture2Mode, PM3ByApertureMode_PIXELSIZE_32BIT | PM3ByApertureMode_BYTESWAP_DCBA);#endif /* ! __BIG_ENDIAN */ break ;default : -DPRINTK ("Unsupported depth %d\n" , - info->var.bits_per_pixel); +DPRINTK ("Unsupported depth %d\n" , bpp);break ; }
@@ -296,14 +283,15 @@ #endif /* ! __BIG_ENDIAN */ PM3VideoControl_VSYNC_MASK); video |= PM3VideoControl_HSYNC_ACTIVE_HIGH | PM3VideoControl_VSYNC_ACTIVE_HIGH; -PM3_SLOW_WRITE_REG (par, PM3VideoControl, video); +PM3_WRITE_REG (par, PM3VideoControl, video); } -PM3_SLOW_WRITE_REG (par, PM3VClkCtl, +PM3_WRITE_REG (par, PM3VClkCtl, (PM3_READ_REG (par, PM3VClkCtl) &0xFFFFFFFC )); -PM3_SLOW_WRITE_REG (par, PM3ScreenBase, par->base); -PM3_SLOW_WRITE_REG (par, PM3ChipConfig, +PM3_WRITE_REG (par, PM3ScreenBase, par->base); +PM3_WRITE_REG (par, PM3ChipConfig, (PM3_READ_REG (par, PM3ChipConfig) &0xFFFFFFFD )); +wmb (); {unsigned char uninitialized_var (m );/* ClkPreScale */ unsigned char uninitialized_var (n );/* ClkFeedBackScale */
@@ -337,7 +325,7 @@ #endif /* ! __BIG_ENDIAN */PM3_WRITE_DAC_REG (par, PM3RD_DACControl,0x00 ); -switch (info->var.bits_per_pixel) { +switch (pm3fb_depth (&info->var)) {case 8 :PM3_WRITE_DAC_REG (par, PM3RD_PixelSize, PM3RD_PixelSize_8_BIT_PIXELS);
@@ -393,57 +381,44 @@ #endif /* ! __BIG_ENDIAN */* hardware independent functions */ int pm3fb_init (void ); -int pm3fb_setup (char *);static int pm3fb_check_var (struct fb_var_screeninfo *var,struct fb_info *info) {u32 lpitch; +unsigned bpp = var->red.length + var->green.length + + var->blue.length + var->transp.length; - var->transp.offset =0 ; - var->transp.length =0 ; -switch (var->bits_per_pixel) { -case 8 : - var->red.length = var->green.length = var->blue.length =8 ; - var->red.offset = var->green.offset = var->blue.offset =0 ; -break ; -case 12 : - var->red.offset =8 ; - var->red.length =4 ; - var->green.offset =4 ; - var->green.length =4 ; - var->blue.offset =0 ; - var->blue.length =4 ; - var->transp.offset =12 ; - var->transp.length =4 ; -case 15 : - var->red.offset =10 ; - var->red.length =5 ; - var->green.offset =5 ; - var->green.length =5 ; - var->blue.offset =0 ; - var->blue.length =5 ; - var->transp.offset =15 ; - var->transp.length =1 ; -break ; -case 16 : - var->red.offset =11 ; - var->red.length =5 ; - var->green.offset =5 ; - var->green.length =6 ; - var->blue.offset =0 ; - var->blue.length =5 ; -break ; -case 32 : - var->transp.offset =24 ; - var->transp.length =8 ; - var->red.offset =16 ; - var->green.offset =8 ; - var->blue.offset =0 ; - var->red.length = var->green.length = var->blue.length =8 ; -break ; -default : -DPRINTK ("depth not supported: %u\n" , var->bits_per_pixel); -return -EINVAL ; +if ( bpp != var->bits_per_pixel ) { +/* set predefined mode for bits_per_pixel settings */ + +switch (var->bits_per_pixel) { +case 8 : + var->red.length = var->green.length = var->blue.length =8 ; + var->red.offset = var->green.offset = var->blue.offset =0 ; + var->transp.offset =0 ; + var->transp.length =0 ; +break ; +case 16 : + var->red.length = var->blue.length =5 ; + var->green.length =6 ; + var->transp.length =0 ; +break ; +case 32 : + var->red.length = var->green.length = var->blue.length =8 ; + var->transp.length =8 ; +break ; +default : +DPRINTK ("depth not supported: %u\n" , var->bits_per_pixel); +return -EINVAL ; + } + } +/* it is assumed BGRA order */ +if (var->bits_per_pixel >8 ) + { + var->blue.offset =0 ; + var->green.offset = var->blue.length; + var->red.offset = var->green.offset + var->green.length; + var->transp.offset = var->red.offset + var->red.length; } var->height = var->width =-1 ;
@@ -502,10 +477,9 @@ static int pm3fb_set_par(struct fb_info {struct pm3_par *par = info->par;const u32 xres = (info->var.xres +31 ) & ~31 ; -const int depth = (info->var.bits_per_pixel +7 ) & ~7 ; +const unsigned bpp = info->var.bits_per_pixel; - par->base =pm3fb_shift_bpp (info->var.bits_per_pixel, - (info->var.yoffset * xres) + par->base =pm3fb_shift_bpp (bpp,(info->var.yoffset * xres) + info->var.xoffset); par->video =0 ;
@@ -530,12 +504,10 @@ static int pm3fb_set_par(struct fb_info par->video |= PM3VideoControl_DISABLE;DPRINTK ("PM3Video disabled\n" ); } -switch (depth) { +switch (bpp) {case 8 : par->video |= PM3VideoControl_PIXELSIZE_8BIT;break ; -case 12 : -case 15 :case 16 : par->video |= PM3VideoControl_PIXELSIZE_16BIT;break ;
@@ -548,9 +520,9 @@ static int pm3fb_set_par(struct fb_info } info->fix.visual = - (depth ==8 ) ?FB_VISUAL_PSEUDOCOLOR :FB_VISUAL_TRUECOLOR ; + (bpp ==8 ) ?FB_VISUAL_PSEUDOCOLOR :FB_VISUAL_TRUECOLOR ; info->fix.line_length = ((info->var.xres_virtual +7 ) & ~7 ) - * depth /8 ; + * bpp /8 ;/* pm3fb_clear_memory(info, 0);*/ pm3fb_clear_colormap (par,0 ,0 ,0 );
@@ -580,8 +552,8 @@ static int pm3fb_setcolreg(unsigned regn* var->{color}.length contains length of bitfield * {hardwarespecific} contains width of DAC * pseudo_palette[X] is programmed to (X << red.offset) | -* (X << green.offset) | -* (X << blue.offset) +* (X << green.offset) | +* (X << blue.offset) * RAMDAC[X] is programmed to (red, green, blue) * color depth = SUM(var->{color}.length) *
@@ -621,7 +593,6 @@ #undef CNVT_TOHWcase 8 :break ;case 16 : -case 24 :case 32 : ((u32 *)(info->pseudo_palette))[regno] = v;break ;
@@ -643,7 +614,8 @@ static int pm3fb_pan_display(struct fb_v par->base =pm3fb_shift_bpp (var->bits_per_pixel, (var->yoffset * xres) + var->xoffset); -PM3_SLOW_WRITE_REG (par, PM3ScreenBase, par->base); +PM3_WAIT (par,1 ); +PM3_WRITE_REG (par, PM3ScreenBase, par->base);return 0 ; }
@@ -665,31 +637,31 @@ static int pm3fb_blank(int blank_mode, sswitch (blank_mode) {case FB_BLANK_UNBLANK : - video = video | PM3VideoControl_ENABLE; + video |= PM3VideoControl_ENABLE;break ; -case FB_BLANK_NORMAL :/* FIXME */ - video = video & ~(PM3VideoControl_ENABLE); +case FB_BLANK_NORMAL : + video &= ~(PM3VideoControl_ENABLE);break ;case FB_BLANK_HSYNC_SUSPEND : - video = video & ~(PM3VideoControl_HSYNC_MASK | - PM3VideoControl_BLANK_ACTIVE_LOW); + video &= ~(PM3VideoControl_HSYNC_MASK | + PM3VideoControl_BLANK_ACTIVE_LOW);break ;case FB_BLANK_VSYNC_SUSPEND : - video = video & ~(PM3VideoControl_VSYNC_MASK | - PM3VideoControl_BLANK_ACTIVE_LOW); + video &= ~(PM3VideoControl_VSYNC_MASK | + PM3VideoControl_BLANK_ACTIVE_LOW);break ;case FB_BLANK_POWERDOWN : - video = video & ~(PM3VideoControl_HSYNC_MASK | - PM3VideoControl_VSYNC_MASK | - PM3VideoControl_BLANK_ACTIVE_LOW); + video &= ~(PM3VideoControl_HSYNC_MASK | + PM3VideoControl_VSYNC_MASK | + PM3VideoControl_BLANK_ACTIVE_LOW);break ;default :DPRINTK ("Unsupported blanking %d\n" , blank_mode);return 1 ; } -PM3_SLOW_WRITE_REG (par,PM3VideoControl, video); - +PM3_WAIT (par,1 ); +PM3_WRITE_REG (par,PM3VideoControl, video);return 0 ; }
@@ -703,9 +675,9 @@ static struct fb_ops pm3fb_ops = { .fb_set_par = pm3fb_set_par, .fb_setcolreg = pm3fb_setcolreg, .fb_pan_display = pm3fb_pan_display, - .fb_fillrect = cfb_fillrect, /* Needed !!! */ - .fb_copyarea = cfb_copyarea, /* Needed !!! */ - .fb_imageblit = cfb_imageblit, /* Needed !!! */ + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, .fb_blank = pm3fb_blank, };
@@ -722,7 +694,7 @@ static unsigned long pm3fb_size_memory(sunsigned long memsize =0 , tempBypass, i, temp1, temp2;unsigned char __iomem *screen_mem; - pm3fb_fix.smem_len =64 *1024 *1024 ;/* request full aperture size */ + pm3fb_fix.smem_len =64 *1024l *1024 ;/* request full aperture size */ /* Linear frame buffer - request region and map it. */ if (!request_mem_region (pm3fb_fix.smem_start, pm3fb_fix.smem_len,"pm3fb smem" )) {
@@ -744,7 +716,8 @@ static unsigned long pm3fb_size_memory(sDPRINTK ("PM3MemBypassWriteMask was: 0x%08lx\n" , tempBypass); -PM3_SLOW_WRITE_REG (par, PM3MemBypassWriteMask,0xFFFFFFFF ); +PM3_WAIT (par,1 ); +PM3_WRITE_REG (par, PM3MemBypassWriteMask,0xFFFFFFFF );/* pm3 split up memory, replicates, and do a lot of nasty stuff IMHO ;-) */ for (i =0 ; i <32 ; i++) {
@@ -765,10 +738,9 @@ static unsigned long pm3fb_size_memory(sif (memsize +1 == i) {for (i =0 ; i <32 ; i++) {/* Clear first 32MB ; 0 is 0, no need to byteswap */ -writel (0x0000000 , - (screen_mem + (i *1048576 ))); -mb (); +writel (0x0000000 , (screen_mem + (i *1048576 ))); } +wmb ();for (i =32 ; i <64 ; i++) { fb_writel(i * 0x00345678,
@@ -787,7 +759,8 @@ static unsigned long pm3fb_size_memory(s }DPRINTK ("Second detect pass got %ld MB\n" , memsize +1 ); -PM3_SLOW_WRITE_REG (par, PM3MemBypassWriteMask, tempBypass); +PM3_WAIT (par,1 ); +PM3_WRITE_REG (par, PM3MemBypassWriteMask, tempBypass);iounmap (screen_mem);release_mem_region (pm3fb_fix.smem_start, pm3fb_fix.smem_len);
@@ -890,7 +863,6 @@ #endif goto err_exit_both; } -/* This has to been done !!! */ if (fb_alloc_cmap (&info->cmap,256 ,0 ) <0 ) { retval = -ENOMEM ; goto err_exit_both;
@@ -907,7 +879,7 @@ #endif }printk (KERN_INFO "fb%d: %s frame buffer device\n" , info->node, info->fix.id); -pci_set_drvdata (dev, info);/* or dev_set_drvdata(device, info) */ +pci_set_drvdata (dev, info);return 0 ; err_exit_all:
@@ -949,8 +921,7 @@ static void __devexit pm3fb_remove(strucstatic struct pci_device_id pm3fb_id_table[] = { {PCI_VENDOR_ID_3DLABS ,0x0a , -PCI_ANY_ID ,PCI_ANY_ID ,PCI_BASE_CLASS_DISPLAY <<16 , -0xff0000 ,0 }, +PCI_ANY_ID ,PCI_ANY_ID ,0 ,0 ,0 }, {0 , } };
@@ -964,6 +935,22 @@ static struct pci_driver pm3fb_driver =MODULE_DEVICE_TABLE (pci, pm3fb_id_table); +#ifndef MODULE +/* +* Setup +*/ + +/* +* Only necessary if your driver takes special options, +* otherwise we fall back on the generic fb_setup(). +*/ +static int __init pm3fb_setup (char *options) +{ +/* Parse user speficied options (`video=pm3fb:') */ +return 0 ; +} +#endif /* MODULE */ +int __init pm3fb_init (void ) {/*
@@ -985,22 +972,6 @@ static void __exit pm3fb_exit(void)pci_unregister_driver (&pm3fb_driver); } -#ifndef MODULE -/* -* Setup -*/ - -/* -* Only necessary if your driver takes special options, -* otherwise we fall back on the generic fb_setup(). -*/ -int __init pm3fb_setup (char *options) -{ -/* Parse user speficied options (`video=pm3fb:') */ -return 0 ; -} -#endif /* MODULE */ -module_init (pm3fb_init);module_exit (pm3fb_exit);
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