From 0ddf78491ddad301ddcd151de8108146e20398e7 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Tue, 16 Oct 2007 01:28:32 -0700 Subject: [PATCH] pm3fb: improvements and cleanups This patch contains improvements: - it adds ROP_XOR in pm3fb_fillrect() - it conforms closer to coding style - it removes redundant parentheses and setting bits with 0 value - it checks if hardware acceleration is disabled in pm3fb_imageblit - it adds module description Signed-off-by: Krzysztof Helt Signed-off-by: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/pm3fb.c | 68 ++++++++++++++++++++++++------------------- 1 file changed, 38 insertions(+), 30 deletions(-) diff --git a/drivers/video/pm3fb.c b/drivers/video/pm3fb.c index fb91b641ae..88af0721f3 100644 --- a/drivers/video/pm3fb.c +++ b/drivers/video/pm3fb.c @@ -135,7 +135,7 @@ static void pm3fb_clear_colormap(struct pm3_par *par, } -/* Calculating various clock parameter */ +/* Calculating various clock parameters */ static void pm3fb_calculate_clock(unsigned long reqclock, unsigned char *prescale, unsigned char *feedback, @@ -166,7 +166,7 @@ static void pm3fb_calculate_clock(unsigned long reqclock, static inline int pm3fb_depth(const struct fb_var_screeninfo *var) { - if ( var->bits_per_pixel == 16 ) + if (var->bits_per_pixel == 16) return var->red.length + var->green.length + var->blue.length; @@ -351,7 +351,7 @@ static void pm3fb_init_engine(struct fb_info *info) PM3_WRITE_REG(par, PM3dXDom, 0x0); PM3_WRITE_REG(par, PM3dXSub, 0x0); - PM3_WRITE_REG(par, PM3dY, (1 << 16)); + PM3_WRITE_REG(par, PM3dY, 1 << 16); PM3_WRITE_REG(par, PM3StartXDom, 0x0); PM3_WRITE_REG(par, PM3StartXSub, 0x0); PM3_WRITE_REG(par, PM3StartY, 0x0); @@ -372,16 +372,21 @@ static void pm3fb_fillrect (struct fb_info *info, struct pm3_par *par = info->par; struct fb_fillrect modded; int vxres, vyres; + int rop; u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ? ((u32*)info->pseudo_palette)[region->color] : region->color; if (info->state != FBINFO_STATE_RUNNING) return; - if ((info->flags & FBINFO_HWACCEL_DISABLED) || - region->rop != ROP_COPY ) { + if (info->flags & FBINFO_HWACCEL_DISABLED) { cfb_fillrect(info, region); return; } + if (region->rop == ROP_COPY ) + rop = PM3Config2D_ForegroundROP(0x3); /* GXcopy */ + else + rop = PM3Config2D_ForegroundROP(0x6) | /* GXxor */ + PM3Config2D_FBDestReadEnable; vxres = info->var.xres_virtual; vyres = info->var.yres_virtual; @@ -407,22 +412,22 @@ static void pm3fb_fillrect (struct fb_info *info, PM3_WRITE_REG(par, PM3Config2D, PM3Config2D_UseConstantSource | PM3Config2D_ForegroundROPEnable | - (PM3Config2D_ForegroundROP(0x3)) | + rop | PM3Config2D_FBWriteEnable); PM3_WRITE_REG(par, PM3ForegroundColor, color); PM3_WRITE_REG(par, PM3RectanglePosition, - (PM3RectanglePosition_XOffset(modded.dx)) | - (PM3RectanglePosition_YOffset(modded.dy))); + PM3RectanglePosition_XOffset(modded.dx) | + PM3RectanglePosition_YOffset(modded.dy)); PM3_WRITE_REG(par, PM3Render2D, PM3Render2D_XPositive | PM3Render2D_YPositive | PM3Render2D_Operation_Normal | PM3Render2D_SpanOperation | - (PM3Render2D_Width(modded.width)) | - (PM3Render2D_Height(modded.height))); + PM3Render2D_Width(modded.width) | + PM3Render2D_Height(modded.height)); } static void pm3fb_copyarea(struct fb_info *info, @@ -470,7 +475,7 @@ static void pm3fb_copyarea(struct fb_info *info, PM3Config2D_UserScissorEnable | PM3Config2D_ForegroundROPEnable | PM3Config2D_Blocking | - (PM3Config2D_ForegroundROP(0x3)) | /* Ox3 is GXcopy */ + PM3Config2D_ForegroundROP(0x3) | /* Ox3 is GXcopy */ PM3Config2D_FBWriteEnable); PM3_WRITE_REG(par, PM3ScissorMinXY, @@ -484,8 +489,8 @@ static void pm3fb_copyarea(struct fb_info *info, PM3FBSourceReadBufferOffset_YOffset(o_y)); PM3_WRITE_REG(par, PM3RectanglePosition, - (PM3RectanglePosition_XOffset(modded.dx - x_align)) | - (PM3RectanglePosition_YOffset(modded.dy))); + PM3RectanglePosition_XOffset(modded.dx - x_align) | + PM3RectanglePosition_YOffset(modded.dy)); PM3_WRITE_REG(par, PM3Render2D, ((modded.sx > modded.dx) ? PM3Render2D_XPositive : 0) | @@ -493,8 +498,8 @@ static void pm3fb_copyarea(struct fb_info *info, PM3Render2D_Operation_Normal | PM3Render2D_SpanOperation | PM3Render2D_FBSourceReadEnable | - (PM3Render2D_Width(modded.width + x_align)) | - (PM3Render2D_Height(modded.height))); + PM3Render2D_Width(modded.width + x_align) | + PM3Render2D_Height(modded.height)); } static void pm3fb_imageblit(struct fb_info *info, const struct fb_image *image) @@ -504,6 +509,12 @@ static void pm3fb_imageblit(struct fb_info *info, const struct fb_image *image) u32 fgx, bgx; const u32 *src = (const u32*)image->data; + if (info->state != FBINFO_STATE_RUNNING) + return; + if (info->flags & FBINFO_HWACCEL_DISABLED) { + cfb_imageblit(info, image); + return; + } switch (info->fix.visual) { case FB_VISUAL_PSEUDOCOLOR: fgx = image->fg_color; @@ -537,7 +548,7 @@ static void pm3fb_imageblit(struct fb_info *info, const struct fb_image *image) PM3Config2D_UserScissorEnable | PM3Config2D_UseConstantSource | PM3Config2D_ForegroundROPEnable | - (PM3Config2D_ForegroundROP(0x3)) | + PM3Config2D_ForegroundROP(0x3) | PM3Config2D_OpaqueSpan | PM3Config2D_FBWriteEnable); PM3_WRITE_REG(par, PM3ScissorMinXY, @@ -546,15 +557,15 @@ static void pm3fb_imageblit(struct fb_info *info, const struct fb_image *image) (((image->dy + image->height) & 0x0fff) << 16) | ((image->dx + image->width) & 0x0fff)); PM3_WRITE_REG(par, PM3RectanglePosition, - (PM3RectanglePosition_XOffset(image->dx)) | - (PM3RectanglePosition_YOffset(image->dy))); + PM3RectanglePosition_XOffset(image->dx) | + PM3RectanglePosition_YOffset(image->dy)); PM3_WRITE_REG(par, PM3Render2D, PM3Render2D_XPositive | PM3Render2D_YPositive | PM3Render2D_Operation_SyncOnBitMask | PM3Render2D_SpanOperation | - (PM3Render2D_Width(image->width)) | - (PM3Render2D_Height(image->height))); + PM3Render2D_Width(image->width) | + PM3Render2D_Height(image->height)); while (height--) { @@ -783,7 +794,7 @@ static int pm3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) unsigned bpp = var->red.length + var->green.length + var->blue.length + var->transp.length; - if ( bpp != var->bits_per_pixel ) { + if (bpp != var->bits_per_pixel) { /* set predefined mode for bits_per_pixel settings */ switch(var->bits_per_pixel) { @@ -838,7 +849,7 @@ static int pm3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) } var->xres = (var->xres + 31) & ~31; /* could sometimes be 8 */ - lpitch = var->xres * ((var->bits_per_pixel + 7)>>3); + lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3); if (var->xres < 200 || var->xres > 2048) { DPRINTK("width not supported: %u\n", var->xres); @@ -890,15 +901,12 @@ static int pm3fb_set_par(struct fb_info *info) if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) par->video |= PM3VideoControl_LINE_DOUBLE_ON; - else - par->video |= PM3VideoControl_LINE_DOUBLE_OFF; if ((info->var.activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) par->video |= PM3VideoControl_ENABLE; - else { - par->video &= ~PM3VideoControl_ENABLE; + else DPRINTK("PM3Video disabled\n"); - } + switch (bpp) { case 8: par->video |= PM3VideoControl_PIXELSIZE_8BIT; @@ -916,8 +924,7 @@ static int pm3fb_set_par(struct fb_info *info) info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; - info->fix.line_length = ((info->var.xres_virtual + 7) & ~7) - * bpp / 8; + info->fix.line_length = ((info->var.xres_virtual + 7) >> 3) * bpp; /* pm3fb_clear_memory(info, 0);*/ pm3fb_clear_colormap(par, 0, 0, 0); @@ -1035,7 +1042,7 @@ static int pm3fb_blank(int blank_mode, struct fb_info *info) video |= PM3VideoControl_ENABLE; break; case FB_BLANK_NORMAL: - video &= ~(PM3VideoControl_ENABLE); + video &= ~PM3VideoControl_ENABLE; break; case FB_BLANK_HSYNC_SUSPEND: video &= ~(PM3VideoControl_HSYNC_MASK | @@ -1367,4 +1374,5 @@ static void __exit pm3fb_exit(void) module_init(pm3fb_init); module_exit(pm3fb_exit); +MODULE_DESCRIPTION("Permedia3 framebuffer device driver"); MODULE_LICENSE("GPL"); -- 2.39.5