video: move fbdev to drivers/video/fbdev

The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.

Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.

No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 0 insertions, 434 deletions

diff --git a/drivers/video/cfbcopyarea.c b/drivers/video/cfbcopyarea.c
deleted file mode 100644
index bcb57235fcc7..000000000000
--- a/drivers/video/cfbcopyarea.c
+++ /dev/null
@@ -1,434 +0,0 @@
-/*
- *  Generic function for frame buffer with packed pixels of any depth.
- *
- *      Copyright (C)  1999-2005 James Simmons <jsimmons@www.infradead.org>
- *
- *  This file is subject to the terms and conditions of the GNU General Public
- *  License.  See the file COPYING in the main directory of this archive for
- *  more details.
- *
- * NOTES:
- *
- *  This is for cfb packed pixels. Iplan and such are incorporated in the
- *  drivers that need them.
- *
- *  FIXME
- *
- *  Also need to add code to deal with cards endians that are different than
- *  the native cpu endians. I also need to deal with MSB position in the word.
- *
- *  The two functions or copying forward and backward could be split up like
- *  the ones for filling, i.e. in aligned and unaligned versions. This would
- *  help moving some redundant computations and branches out of the loop, too.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/fb.h>
-#include <asm/types.h>
-#include <asm/io.h>
-#include "fb_draw.h"
-
-#if BITS_PER_LONG == 32
-#  define FB_WRITEL fb_writel
-#  define FB_READL  fb_readl
-#else
-#  define FB_WRITEL fb_writeq
-#  define FB_READL  fb_readq
-#endif
-
-    /*
-     *  Generic bitwise copy algorithm
-     */
-
-static void
-bitcpy(struct fb_info *p, unsigned long __iomem *dst, unsigned dst_idx,
-		const unsigned long __iomem *src, unsigned src_idx, int bits,
-		unsigned n, u32 bswapmask)
-{
-	unsigned long first, last;
-	int const shift = dst_idx-src_idx;
-
-#if 0
-	/*
-	 * If you suspect bug in this function, compare it with this simple
-	 * memmove implementation.
-	 */
-	fb_memmove((char *)dst + ((dst_idx & (bits - 1))) / 8,
-		   (char *)src + ((src_idx & (bits - 1))) / 8, n / 8);
-	return;
-#endif
-
-	first = fb_shifted_pixels_mask_long(p, dst_idx, bswapmask);
-	last = ~fb_shifted_pixels_mask_long(p, (dst_idx+n) % bits, bswapmask);
-
-	if (!shift) {
-		// Same alignment for source and dest
-
-		if (dst_idx+n <= bits) {
-			// Single word
-			if (last)
-				first &= last;
-			FB_WRITEL( comp( FB_READL(src), FB_READL(dst), first), dst);
-		} else {
-			// Multiple destination words
-
-			// Leading bits
-			if (first != ~0UL) {
-				FB_WRITEL( comp( FB_READL(src), FB_READL(dst), first), dst);
-				dst++;
-				src++;
-				n -= bits - dst_idx;
-			}
-
-			// Main chunk
-			n /= bits;
-			while (n >= 8) {
-				FB_WRITEL(FB_READL(src++), dst++);
-				FB_WRITEL(FB_READL(src++), dst++);
-				FB_WRITEL(FB_READL(src++), dst++);
-				FB_WRITEL(FB_READL(src++), dst++);
-				FB_WRITEL(FB_READL(src++), dst++);
-				FB_WRITEL(FB_READL(src++), dst++);
-				FB_WRITEL(FB_READL(src++), dst++);
-				FB_WRITEL(FB_READL(src++), dst++);
-				n -= 8;
-			}
-			while (n--)
-				FB_WRITEL(FB_READL(src++), dst++);
-
-			// Trailing bits
-			if (last)
-				FB_WRITEL( comp( FB_READL(src), FB_READL(dst), last), dst);
-		}
-	} else {
-		/* Different alignment for source and dest */
-		unsigned long d0, d1;
-		int m;
-
-		int const left = shift & (bits - 1);
-		int const right = -shift & (bits - 1);
-
-		if (dst_idx+n <= bits) {
-			// Single destination word
-			if (last)
-				first &= last;
-			d0 = FB_READL(src);
-			d0 = fb_rev_pixels_in_long(d0, bswapmask);
-			if (shift > 0) {
-				// Single source word
-				d0 <<= left;
-			} else if (src_idx+n <= bits) {
-				// Single source word
-				d0 >>= right;
-			} else {
-				// 2 source words
-				d1 = FB_READL(src + 1);
-				d1 = fb_rev_pixels_in_long(d1, bswapmask);
-				d0 = d0 >> right | d1 << left;
-			}
-			d0 = fb_rev_pixels_in_long(d0, bswapmask);
-			FB_WRITEL(comp(d0, FB_READL(dst), first), dst);
-		} else {
-			// Multiple destination words
-			/** We must always remember the last value read, because in case
-			SRC and DST overlap bitwise (e.g. when moving just one pixel in
-			1bpp), we always collect one full long for DST and that might
-			overlap with the current long from SRC. We store this value in
-			'd0'. */
-			d0 = FB_READL(src++);
-			d0 = fb_rev_pixels_in_long(d0, bswapmask);
-			// Leading bits
-			if (shift > 0) {
-				// Single source word
-				d1 = d0;
-				d0 <<= left;
-				n -= bits - dst_idx;
-			} else {
-				// 2 source words
-				d1 = FB_READL(src++);
-				d1 = fb_rev_pixels_in_long(d1, bswapmask);
-
-				d0 = d0 >> right | d1 << left;
-				n -= bits - dst_idx;
-			}
-			d0 = fb_rev_pixels_in_long(d0, bswapmask);
-			FB_WRITEL(comp(d0, FB_READL(dst), first), dst);
-			d0 = d1;
-			dst++;
-
-			// Main chunk
-			m = n % bits;
-			n /= bits;
-			while ((n >= 4) && !bswapmask) {
-				d1 = FB_READL(src++);
-				FB_WRITEL(d0 >> right | d1 << left, dst++);
-				d0 = d1;
-				d1 = FB_READL(src++);
-				FB_WRITEL(d0 >> right | d1 << left, dst++);
-				d0 = d1;
-				d1 = FB_READL(src++);
-				FB_WRITEL(d0 >> right | d1 << left, dst++);
-				d0 = d1;
-				d1 = FB_READL(src++);
-				FB_WRITEL(d0 >> right | d1 << left, dst++);
-				d0 = d1;
-				n -= 4;
-			}
-			while (n--) {
-				d1 = FB_READL(src++);
-				d1 = fb_rev_pixels_in_long(d1, bswapmask);
-				d0 = d0 >> right | d1 << left;
-				d0 = fb_rev_pixels_in_long(d0, bswapmask);
-				FB_WRITEL(d0, dst++);
-				d0 = d1;
-			}
-
-			// Trailing bits
-			if (m) {
-				if (m <= bits - right) {
-					// Single source word
-					d0 >>= right;
-				} else {
-					// 2 source words
-					d1 = FB_READL(src);
-					d1 = fb_rev_pixels_in_long(d1,
-								bswapmask);
-					d0 = d0 >> right | d1 << left;
-				}
-				d0 = fb_rev_pixels_in_long(d0, bswapmask);
-				FB_WRITEL(comp(d0, FB_READL(dst), last), dst);
-			}
-		}
-	}
-}
-
-    /*
-     *  Generic bitwise copy algorithm, operating backward
-     */
-
-static void
-bitcpy_rev(struct fb_info *p, unsigned long __iomem *dst, unsigned dst_idx,
-		const unsigned long __iomem *src, unsigned src_idx, int bits,
-		unsigned n, u32 bswapmask)
-{
-	unsigned long first, last;
-	int shift;
-
-#if 0
-	/*
-	 * If you suspect bug in this function, compare it with this simple
-	 * memmove implementation.
-	 */
-	fb_memmove((char *)dst + ((dst_idx & (bits - 1))) / 8,
-		   (char *)src + ((src_idx & (bits - 1))) / 8, n / 8);
-	return;
-#endif
-
-	dst += (dst_idx + n - 1) / bits;
-	src += (src_idx + n - 1) / bits;
-	dst_idx = (dst_idx + n - 1) % bits;
-	src_idx = (src_idx + n - 1) % bits;
-
-	shift = dst_idx-src_idx;
-
-	first = ~fb_shifted_pixels_mask_long(p, (dst_idx + 1) % bits, bswapmask);
-	last = fb_shifted_pixels_mask_long(p, (bits + dst_idx + 1 - n) % bits, bswapmask);
-
-	if (!shift) {
-		// Same alignment for source and dest
-
-		if ((unsigned long)dst_idx+1 >= n) {
-			// Single word
-			if (first)
-				last &= first;
-			FB_WRITEL( comp( FB_READL(src), FB_READL(dst), last), dst);
-		} else {
-			// Multiple destination words
-
-			// Leading bits
-			if (first) {
-				FB_WRITEL( comp( FB_READL(src), FB_READL(dst), first), dst);
-				dst--;
-				src--;
-				n -= dst_idx+1;
-			}
-
-			// Main chunk
-			n /= bits;
-			while (n >= 8) {
-				FB_WRITEL(FB_READL(src--), dst--);
-				FB_WRITEL(FB_READL(src--), dst--);
-				FB_WRITEL(FB_READL(src--), dst--);
-				FB_WRITEL(FB_READL(src--), dst--);
-				FB_WRITEL(FB_READL(src--), dst--);
-				FB_WRITEL(FB_READL(src--), dst--);
-				FB_WRITEL(FB_READL(src--), dst--);
-				FB_WRITEL(FB_READL(src--), dst--);
-				n -= 8;
-			}
-			while (n--)
-				FB_WRITEL(FB_READL(src--), dst--);
-
-			// Trailing bits
-			if (last != -1UL)
-				FB_WRITEL( comp( FB_READL(src), FB_READL(dst), last), dst);
-		}
-	} else {
-		// Different alignment for source and dest
-		unsigned long d0, d1;
-		int m;
-
-		int const left = shift & (bits-1);
-		int const right = -shift & (bits-1);
-
-		if ((unsigned long)dst_idx+1 >= n) {
-			// Single destination word
-			if (first)
-				last &= first;
-			d0 = FB_READL(src);
-			if (shift < 0) {
-				// Single source word
-				d0 >>= right;
-			} else if (1+(unsigned long)src_idx >= n) {
-				// Single source word
-				d0 <<= left;
-			} else {
-				// 2 source words
-				d1 = FB_READL(src - 1);
-				d1 = fb_rev_pixels_in_long(d1, bswapmask);
-				d0 = d0 << left | d1 >> right;
-			}
-			d0 = fb_rev_pixels_in_long(d0, bswapmask);
-			FB_WRITEL(comp(d0, FB_READL(dst), last), dst);
-		} else {
-			// Multiple destination words
-			/** We must always remember the last value read, because in case
-			SRC and DST overlap bitwise (e.g. when moving just one pixel in
-			1bpp), we always collect one full long for DST and that might
-			overlap with the current long from SRC. We store this value in
-			'd0'. */
-
-			d0 = FB_READL(src--);
-			d0 = fb_rev_pixels_in_long(d0, bswapmask);
-			// Leading bits
-			if (shift < 0) {
-				// Single source word
-				d1 = d0;
-				d0 >>= right;
-			} else {
-				// 2 source words
-				d1 = FB_READL(src--);
-				d1 = fb_rev_pixels_in_long(d1, bswapmask);
-				d0 = d0 << left | d1 >> right;
-			}
-			d0 = fb_rev_pixels_in_long(d0, bswapmask);
-			FB_WRITEL(comp(d0, FB_READL(dst), first), dst);
-			d0 = d1;
-			dst--;
-			n -= dst_idx+1;
-
-			// Main chunk
-			m = n % bits;
-			n /= bits;
-			while ((n >= 4) && !bswapmask) {
-				d1 = FB_READL(src--);
-				FB_WRITEL(d0 << left | d1 >> right, dst--);
-				d0 = d1;
-				d1 = FB_READL(src--);
-				FB_WRITEL(d0 << left | d1 >> right, dst--);
-				d0 = d1;
-				d1 = FB_READL(src--);
-				FB_WRITEL(d0 << left | d1 >> right, dst--);
-				d0 = d1;
-				d1 = FB_READL(src--);
-				FB_WRITEL(d0 << left | d1 >> right, dst--);
-				d0 = d1;
-				n -= 4;
-			}
-			while (n--) {
-				d1 = FB_READL(src--);
-				d1 = fb_rev_pixels_in_long(d1, bswapmask);
-				d0 = d0 << left | d1 >> right;
-				d0 = fb_rev_pixels_in_long(d0, bswapmask);
-				FB_WRITEL(d0, dst--);
-				d0 = d1;
-			}
-
-			// Trailing bits
-			if (m) {
-				if (m <= bits - left) {
-					// Single source word
-					d0 <<= left;
-				} else {
-					// 2 source words
-					d1 = FB_READL(src);
-					d1 = fb_rev_pixels_in_long(d1,
-								bswapmask);
-					d0 = d0 << left | d1 >> right;
-				}
-				d0 = fb_rev_pixels_in_long(d0, bswapmask);
-				FB_WRITEL(comp(d0, FB_READL(dst), last), dst);
-			}
-		}
-	}
-}
-
-void cfb_copyarea(struct fb_info *p, const struct fb_copyarea *area)
-{
-	u32 dx = area->dx, dy = area->dy, sx = area->sx, sy = area->sy;
-	u32 height = area->height, width = area->width;
-	unsigned long const bits_per_line = p->fix.line_length*8u;
-	unsigned long __iomem *base = NULL;
-	int bits = BITS_PER_LONG, bytes = bits >> 3;
-	unsigned dst_idx = 0, src_idx = 0, rev_copy = 0;
-	u32 bswapmask = fb_compute_bswapmask(p);
-
-	if (p->state != FBINFO_STATE_RUNNING)
-		return;
-
-	/* if the beginning of the target area might overlap with the end of
-	the source area, be have to copy the area reverse. */
-	if ((dy == sy && dx > sx) || (dy > sy)) {
-		dy += height;
-		sy += height;
-		rev_copy = 1;
-	}
-
-	// split the base of the framebuffer into a long-aligned address and the
-	// index of the first bit
-	base = (unsigned long __iomem *)((unsigned long)p->screen_base & ~(bytes-1));
-	dst_idx = src_idx = 8*((unsigned long)p->screen_base & (bytes-1));
-	// add offset of source and target area
-	dst_idx += dy*bits_per_line + dx*p->var.bits_per_pixel;
-	src_idx += sy*bits_per_line + sx*p->var.bits_per_pixel;
-
-	if (p->fbops->fb_sync)
-		p->fbops->fb_sync(p);
-
-	if (rev_copy) {
-		while (height--) {
-			dst_idx -= bits_per_line;
-			src_idx -= bits_per_line;
-			bitcpy_rev(p, base + (dst_idx / bits), dst_idx % bits,
-				base + (src_idx / bits), src_idx % bits, bits,
-				width*p->var.bits_per_pixel, bswapmask);
-		}
-	} else {
-		while (height--) {
-			bitcpy(p, base + (dst_idx / bits), dst_idx % bits,
-				base + (src_idx / bits), src_idx % bits, bits,
-				width*p->var.bits_per_pixel, bswapmask);
-			dst_idx += bits_per_line;
-			src_idx += bits_per_line;
-		}
-	}
-}
-
-EXPORT_SYMBOL(cfb_copyarea);
-
-MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>");
-MODULE_DESCRIPTION("Generic software accelerated copyarea");
-MODULE_LICENSE("GPL");
-