Re: [PATCH] atyfb: vblank irq support

["Antonino A. Daplas" <adaplas@hotpop.com>]

On Sunday 25 July 2004 07:12, Alexander Kern wrote:
>
> P.S. Now the last consumer from fb_load_cursor_image is neo driver.
> Should we drop this function, it's buggy!

We should.  fb_load_cursor_image() cannot be generic.

>
> Steel on my TODO list:
>
> Issue with 16bpp mode, brocken boot logo, fbi has problems too.

1. aty128fb_setcolreg has this lines:

		case 16:
			pal[regno] = (regno << 11) | (regno << 6) | regno;
			break;

Shouldn't it be?

		pal[regno] = (regno << 11) | (regno << 5) | regno;

2. In RGB555, isn't it better to fill up all the 8 slots per index per channel (256/32),
instead of just (regno * 8)? For RGB565, that will be 8 slots per red and blue,
4 slots per green (256/64).

So something like this for RGB555, ie:

	for  (i = 0; i < 8; i++) {
		aty128_st_pal((regno * 8) + i, red, green, blue, par);

RGB565 is a bit more complicated because green is deeper, but is doable.

Tony

DISCLAIMER: I know nothing about this hardware, I'm probably shooting
blanks :-)




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