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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 <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Krzysztof Helt
Linus Torvalds
parent
c79ba28cc0
commit
0ddf78491d
1 changed files with 38 additions and 30 deletions
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@ -135,7 +135,7 @@ static void pm3fb_clear_colormap(struct pm3_par *par,
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}
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/* Calculating various clock parameter */
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/* Calculating various clock parameters */
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static void pm3fb_calculate_clock(unsigned long reqclock,
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unsigned char *prescale,
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unsigned char *feedback,
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@ -166,7 +166,7 @@ static void pm3fb_calculate_clock(unsigned long reqclock,
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static inline int pm3fb_depth(const struct fb_var_screeninfo *var)
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{
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if ( var->bits_per_pixel == 16 )
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if (var->bits_per_pixel == 16)
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return var->red.length + var->green.length
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+ var->blue.length;
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@ -351,7 +351,7 @@ static void pm3fb_init_engine(struct fb_info *info)
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PM3_WRITE_REG(par, PM3dXDom, 0x0);
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PM3_WRITE_REG(par, PM3dXSub, 0x0);
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PM3_WRITE_REG(par, PM3dY, (1 << 16));
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PM3_WRITE_REG(par, PM3dY, 1 << 16);
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PM3_WRITE_REG(par, PM3StartXDom, 0x0);
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PM3_WRITE_REG(par, PM3StartXSub, 0x0);
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PM3_WRITE_REG(par, PM3StartY, 0x0);
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@ -372,16 +372,21 @@ static void pm3fb_fillrect (struct fb_info *info,
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struct pm3_par *par = info->par;
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struct fb_fillrect modded;
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int vxres, vyres;
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int rop;
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u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ?
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((u32*)info->pseudo_palette)[region->color] : region->color;
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if (info->state != FBINFO_STATE_RUNNING)
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return;
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if ((info->flags & FBINFO_HWACCEL_DISABLED) ||
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region->rop != ROP_COPY ) {
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if (info->flags & FBINFO_HWACCEL_DISABLED) {
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cfb_fillrect(info, region);
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return;
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}
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if (region->rop == ROP_COPY )
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rop = PM3Config2D_ForegroundROP(0x3); /* GXcopy */
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else
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rop = PM3Config2D_ForegroundROP(0x6) | /* GXxor */
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PM3Config2D_FBDestReadEnable;
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vxres = info->var.xres_virtual;
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vyres = info->var.yres_virtual;
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@ -407,22 +412,22 @@ static void pm3fb_fillrect (struct fb_info *info,
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PM3_WRITE_REG(par, PM3Config2D,
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PM3Config2D_UseConstantSource |
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PM3Config2D_ForegroundROPEnable |
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(PM3Config2D_ForegroundROP(0x3)) |
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rop |
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PM3Config2D_FBWriteEnable);
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PM3_WRITE_REG(par, PM3ForegroundColor, color);
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PM3_WRITE_REG(par, PM3RectanglePosition,
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(PM3RectanglePosition_XOffset(modded.dx)) |
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(PM3RectanglePosition_YOffset(modded.dy)));
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PM3RectanglePosition_XOffset(modded.dx) |
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PM3RectanglePosition_YOffset(modded.dy));
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PM3_WRITE_REG(par, PM3Render2D,
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PM3Render2D_XPositive |
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PM3Render2D_YPositive |
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PM3Render2D_Operation_Normal |
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PM3Render2D_SpanOperation |
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(PM3Render2D_Width(modded.width)) |
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(PM3Render2D_Height(modded.height)));
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PM3Render2D_Width(modded.width) |
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PM3Render2D_Height(modded.height));
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}
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static void pm3fb_copyarea(struct fb_info *info,
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@ -470,7 +475,7 @@ static void pm3fb_copyarea(struct fb_info *info,
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PM3Config2D_UserScissorEnable |
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PM3Config2D_ForegroundROPEnable |
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PM3Config2D_Blocking |
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(PM3Config2D_ForegroundROP(0x3)) | /* Ox3 is GXcopy */
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PM3Config2D_ForegroundROP(0x3) | /* Ox3 is GXcopy */
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PM3Config2D_FBWriteEnable);
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PM3_WRITE_REG(par, PM3ScissorMinXY,
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@ -484,8 +489,8 @@ static void pm3fb_copyarea(struct fb_info *info,
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PM3FBSourceReadBufferOffset_YOffset(o_y));
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PM3_WRITE_REG(par, PM3RectanglePosition,
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(PM3RectanglePosition_XOffset(modded.dx - x_align)) |
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(PM3RectanglePosition_YOffset(modded.dy)));
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PM3RectanglePosition_XOffset(modded.dx - x_align) |
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PM3RectanglePosition_YOffset(modded.dy));
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PM3_WRITE_REG(par, PM3Render2D,
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((modded.sx > modded.dx) ? PM3Render2D_XPositive : 0) |
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@ -493,8 +498,8 @@ static void pm3fb_copyarea(struct fb_info *info,
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PM3Render2D_Operation_Normal |
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PM3Render2D_SpanOperation |
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PM3Render2D_FBSourceReadEnable |
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(PM3Render2D_Width(modded.width + x_align)) |
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(PM3Render2D_Height(modded.height)));
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PM3Render2D_Width(modded.width + x_align) |
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PM3Render2D_Height(modded.height));
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}
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static void pm3fb_imageblit(struct fb_info *info, const struct fb_image *image)
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@ -504,6 +509,12 @@ static void pm3fb_imageblit(struct fb_info *info, const struct fb_image *image)
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u32 fgx, bgx;
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const u32 *src = (const u32*)image->data;
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if (info->state != FBINFO_STATE_RUNNING)
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return;
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if (info->flags & FBINFO_HWACCEL_DISABLED) {
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cfb_imageblit(info, image);
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return;
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}
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switch (info->fix.visual) {
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case FB_VISUAL_PSEUDOCOLOR:
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fgx = image->fg_color;
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@ -537,7 +548,7 @@ static void pm3fb_imageblit(struct fb_info *info, const struct fb_image *image)
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PM3Config2D_UserScissorEnable |
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PM3Config2D_UseConstantSource |
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PM3Config2D_ForegroundROPEnable |
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(PM3Config2D_ForegroundROP(0x3)) |
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PM3Config2D_ForegroundROP(0x3) |
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PM3Config2D_OpaqueSpan |
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PM3Config2D_FBWriteEnable);
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PM3_WRITE_REG(par, PM3ScissorMinXY,
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@ -546,15 +557,15 @@ static void pm3fb_imageblit(struct fb_info *info, const struct fb_image *image)
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(((image->dy + image->height) & 0x0fff) << 16) |
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((image->dx + image->width) & 0x0fff));
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PM3_WRITE_REG(par, PM3RectanglePosition,
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(PM3RectanglePosition_XOffset(image->dx)) |
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(PM3RectanglePosition_YOffset(image->dy)));
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PM3RectanglePosition_XOffset(image->dx) |
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PM3RectanglePosition_YOffset(image->dy));
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PM3_WRITE_REG(par, PM3Render2D,
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PM3Render2D_XPositive |
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PM3Render2D_YPositive |
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PM3Render2D_Operation_SyncOnBitMask |
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PM3Render2D_SpanOperation |
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(PM3Render2D_Width(image->width)) |
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(PM3Render2D_Height(image->height)));
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PM3Render2D_Width(image->width) |
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PM3Render2D_Height(image->height));
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while (height--) {
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@ -783,7 +794,7 @@ static int pm3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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unsigned bpp = var->red.length + var->green.length
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+ var->blue.length + var->transp.length;
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if ( bpp != var->bits_per_pixel ) {
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if (bpp != var->bits_per_pixel) {
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/* set predefined mode for bits_per_pixel settings */
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switch(var->bits_per_pixel) {
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@ -838,7 +849,7 @@ static int pm3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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}
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var->xres = (var->xres + 31) & ~31; /* could sometimes be 8 */
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lpitch = var->xres * ((var->bits_per_pixel + 7)>>3);
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lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3);
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if (var->xres < 200 || var->xres > 2048) {
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DPRINTK("width not supported: %u\n", var->xres);
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@ -890,15 +901,12 @@ static int pm3fb_set_par(struct fb_info *info)
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if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
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par->video |= PM3VideoControl_LINE_DOUBLE_ON;
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else
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par->video |= PM3VideoControl_LINE_DOUBLE_OFF;
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if ((info->var.activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
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par->video |= PM3VideoControl_ENABLE;
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else {
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par->video &= ~PM3VideoControl_ENABLE;
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else
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DPRINTK("PM3Video disabled\n");
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}
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switch (bpp) {
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case 8:
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par->video |= PM3VideoControl_PIXELSIZE_8BIT;
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@ -916,8 +924,7 @@ static int pm3fb_set_par(struct fb_info *info)
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info->fix.visual =
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(bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
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info->fix.line_length = ((info->var.xres_virtual + 7) & ~7)
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* bpp / 8;
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info->fix.line_length = ((info->var.xres_virtual + 7) >> 3) * bpp;
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/* pm3fb_clear_memory(info, 0);*/
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pm3fb_clear_colormap(par, 0, 0, 0);
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@ -1035,7 +1042,7 @@ static int pm3fb_blank(int blank_mode, struct fb_info *info)
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video |= PM3VideoControl_ENABLE;
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break;
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case FB_BLANK_NORMAL:
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video &= ~(PM3VideoControl_ENABLE);
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video &= ~PM3VideoControl_ENABLE;
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break;
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case FB_BLANK_HSYNC_SUSPEND:
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video &= ~(PM3VideoControl_HSYNC_MASK |
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@ -1367,4 +1374,5 @@ static void __exit pm3fb_exit(void)
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module_init(pm3fb_init);
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module_exit(pm3fb_exit);
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MODULE_DESCRIPTION("Permedia3 framebuffer device driver");
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MODULE_LICENSE("GPL");
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