s3fb: implement fb_get_caps (56c75549) · Commits · 戴 / test

Implement fb_get_caps(). This will allow the driver to tell upper layer that it can only support 256 8x16 bitmaps when in tileblitting mode (var->bits_per_pixel == 0); 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>

drivers/video/s3fb.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -799,6 +799,23 @@ static int s3fb_pan_display(struct fb_var_screeninfo var, struct fb_info info)
		return 0;
		}

		/* Get capabilities of accelerator based on the mode */

		static void s3fb_get_caps(struct fb_info info, struct fb_blit_caps caps,
		struct fb_var_screeninfo *var)
		{
		if (var->bits_per_pixel == 0) {
		/* can only support 256 8x16 bitmap */
		caps->x = 1 << (8 - 1);
		caps->y = 1 << (16 - 1);
		caps->len = 256;
		} else {
		caps->x = ~(u32)0;
		caps->y = ~(u32)0;
		caps->len = ~(u32)0;
		}
		}

		/* ------------------------------------------------------------------------- */

		/* Frame buffer operations */
		@@ -815,6 +832,7 @@ static struct fb_ops s3fb_ops = {
		.fb_fillrect = s3fb_fillrect,
		.fb_copyarea = cfb_copyarea,
		.fb_imageblit = s3fb_imageblit,
		.fb_get_caps = s3fb_get_caps,
		};

		/* ------------------------------------------------------------------------- */

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