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, 1142 deletions

diff --git a/drivers/video/pvr2fb.c b/drivers/video/pvr2fb.c
deleted file mode 100644
index 167cffff3d4e..000000000000
--- a/drivers/video/pvr2fb.c
+++ /dev/null
@@ -1,1142 +0,0 @@
-/*
- * drivers/video/pvr2fb.c
- *
- * Frame buffer and fbcon support for the NEC PowerVR2 found within the Sega
- * Dreamcast.
- *
- * Copyright (c) 2001 M. R. Brown <mrbrown@0xd6.org>
- * Copyright (c) 2001 - 2008  Paul Mundt <lethal@linux-sh.org>
- *
- * This driver is mostly based on the excellent amifb and vfb sources.  It uses
- * an odd scheme for converting hardware values to/from framebuffer values,
- * here are some hacked-up formulas:
- *
- *  The Dreamcast has screen offsets from each side of its four borders and
- *  the start offsets of the display window.  I used these values to calculate
- *  'pseudo' values (think of them as placeholders) for the fb video mode, so
- *  that when it came time to convert these values back into their hardware
- *  values, I could just add mode- specific offsets to get the correct mode
- *  settings:
- *
- *      left_margin = diwstart_h - borderstart_h;
- *      right_margin = borderstop_h - (diwstart_h + xres);
- *      upper_margin = diwstart_v - borderstart_v;
- *      lower_margin = borderstop_v - (diwstart_h + yres);
- *
- *      hsync_len = borderstart_h + (hsync_total - borderstop_h);
- *      vsync_len = borderstart_v + (vsync_total - borderstop_v);
- *
- *  Then, when it's time to convert back to hardware settings, the only
- *  constants are the borderstart_* offsets, all other values are derived from
- *  the fb video mode:
- *
- *      // PAL
- *      borderstart_h = 116;
- *      borderstart_v = 44;
- *      ...
- *      borderstop_h = borderstart_h + hsync_total - hsync_len;
- *      ...
- *      diwstart_v = borderstart_v - upper_margin;
- *
- *  However, in the current implementation, the borderstart values haven't had
- *  the benefit of being fully researched, so some modes may be broken.
- */
-
-#undef DEBUG
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-
-#ifdef CONFIG_SH_DREAMCAST
-#include <asm/machvec.h>
-#include <mach-dreamcast/mach/sysasic.h>
-#endif
-
-#ifdef CONFIG_PVR2_DMA
-#include <linux/pagemap.h>
-#include <mach/dma.h>
-#include <asm/dma.h>
-#endif
-
-#ifdef CONFIG_SH_STORE_QUEUES
-#include <linux/uaccess.h>
-#include <cpu/sq.h>
-#endif
-
-#ifndef PCI_DEVICE_ID_NEC_NEON250
-#  define PCI_DEVICE_ID_NEC_NEON250	0x0067
-#endif
-
-/* 2D video registers */
-#define DISP_BASE	par->mmio_base
-#define DISP_BRDRCOLR (DISP_BASE + 0x40)
-#define DISP_DIWMODE (DISP_BASE + 0x44)
-#define DISP_DIWADDRL (DISP_BASE + 0x50)
-#define DISP_DIWADDRS (DISP_BASE + 0x54)
-#define DISP_DIWSIZE (DISP_BASE + 0x5c)
-#define DISP_SYNCCONF (DISP_BASE + 0xd0)
-#define DISP_BRDRHORZ (DISP_BASE + 0xd4)
-#define DISP_SYNCSIZE (DISP_BASE + 0xd8)
-#define DISP_BRDRVERT (DISP_BASE + 0xdc)
-#define DISP_DIWCONF (DISP_BASE + 0xe8)
-#define DISP_DIWHSTRT (DISP_BASE + 0xec)
-#define DISP_DIWVSTRT (DISP_BASE + 0xf0)
-#define DISP_PIXDEPTH (DISP_BASE + 0x108)
-
-/* Pixel clocks, one for TV output, doubled for VGA output */
-#define TV_CLK 74239
-#define VGA_CLK 37119
-
-/* This is for 60Hz - the VTOTAL is doubled for interlaced modes */
-#define PAL_HTOTAL 863
-#define PAL_VTOTAL 312
-#define NTSC_HTOTAL 857
-#define NTSC_VTOTAL 262
-
-/* Supported cable types */
-enum { CT_VGA, CT_NONE, CT_RGB, CT_COMPOSITE };
-
-/* Supported video output types */
-enum { VO_PAL, VO_NTSC, VO_VGA };
-
-/* Supported palette types */
-enum { PAL_ARGB1555, PAL_RGB565, PAL_ARGB4444, PAL_ARGB8888 };
-
-struct pvr2_params { unsigned int val; char *name; };
-static struct pvr2_params cables[] = {
-	{ CT_VGA, "VGA" }, { CT_RGB, "RGB" }, { CT_COMPOSITE, "COMPOSITE" },
-};
-
-static struct pvr2_params outputs[] = {
-	{ VO_PAL, "PAL" }, { VO_NTSC, "NTSC" }, { VO_VGA, "VGA" },
-};
-
-/*
- * This describes the current video mode
- */
-
-static struct pvr2fb_par {
-	unsigned int hsync_total;	/* Clocks/line */
-	unsigned int vsync_total;	/* Lines/field */
-	unsigned int borderstart_h;
-	unsigned int borderstop_h;
-	unsigned int borderstart_v;
-	unsigned int borderstop_v;
-	unsigned int diwstart_h;	/* Horizontal offset of the display field */
-	unsigned int diwstart_v;	/* Vertical offset of the display field, for
-				   interlaced modes, this is the long field */
-	unsigned long disp_start;	/* Address of image within VRAM */
-	unsigned char is_interlaced;	/* Is the display interlaced? */
-	unsigned char is_doublescan;	/* Are scanlines output twice? (doublescan) */
-	unsigned char is_lowres;	/* Is horizontal pixel-doubling enabled? */
-
-	unsigned long mmio_base;	/* MMIO base */
-	u32 palette[16];
-} *currentpar;
-
-static struct fb_info *fb_info;
-
-static struct fb_fix_screeninfo pvr2_fix = {
-	.id =		"NEC PowerVR2",
-	.type =		FB_TYPE_PACKED_PIXELS,
-	.visual =	FB_VISUAL_TRUECOLOR,
-	.ypanstep =	1,
-	.ywrapstep =	1,
-	.accel =	FB_ACCEL_NONE,
-};
-
-static struct fb_var_screeninfo pvr2_var = {
-	.xres =		640,
-	.yres =		480,
-	.xres_virtual =	640,
-	.yres_virtual = 480,
-	.bits_per_pixel	=16,
-	.red =		{ 11, 5, 0 },
-	.green =	{  5, 6, 0 },
-	.blue =		{  0, 5, 0 },
-	.activate =	FB_ACTIVATE_NOW,
-	.height =	-1,
-	.width =	-1,
-	.vmode =	FB_VMODE_NONINTERLACED,
-};
-
-static int cable_type = CT_VGA;
-static int video_output = VO_VGA;
-
-static int nopan = 0;
-static int nowrap = 1;
-
-/*
- * We do all updating, blanking, etc. during the vertical retrace period
- */
-static unsigned int do_vmode_full = 0;	/* Change the video mode */
-static unsigned int do_vmode_pan = 0;	/* Update the video mode */
-static short do_blank = 0;		/* (Un)Blank the screen */
-
-static unsigned int is_blanked = 0;		/* Is the screen blanked? */
-
-#ifdef CONFIG_SH_STORE_QUEUES
-static unsigned long pvr2fb_map;
-#endif
-
-#ifdef CONFIG_PVR2_DMA
-static unsigned int shdma = PVR2_CASCADE_CHAN;
-static unsigned int pvr2dma = ONCHIP_NR_DMA_CHANNELS;
-#endif
-
-static int pvr2fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green, unsigned int blue,
-                            unsigned int transp, struct fb_info *info);
-static int pvr2fb_blank(int blank, struct fb_info *info);
-static unsigned long get_line_length(int xres_virtual, int bpp);
-static void set_color_bitfields(struct fb_var_screeninfo *var);
-static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info);
-static int pvr2fb_set_par(struct fb_info *info);
-static void pvr2_update_display(struct fb_info *info);
-static void pvr2_init_display(struct fb_info *info);
-static void pvr2_do_blank(void);
-static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id);
-static int pvr2_init_cable(void);
-static int pvr2_get_param(const struct pvr2_params *p, const char *s,
-                            int val, int size);
-#ifdef CONFIG_PVR2_DMA
-static ssize_t pvr2fb_write(struct fb_info *info, const char *buf,
-			    size_t count, loff_t *ppos);
-#endif
-
-static struct fb_ops pvr2fb_ops = {
-	.owner		= THIS_MODULE,
-	.fb_setcolreg	= pvr2fb_setcolreg,
-	.fb_blank	= pvr2fb_blank,
-	.fb_check_var	= pvr2fb_check_var,
-	.fb_set_par	= pvr2fb_set_par,
-#ifdef CONFIG_PVR2_DMA
-	.fb_write	= pvr2fb_write,
-#endif
-	.fb_fillrect	= cfb_fillrect,
-	.fb_copyarea	= cfb_copyarea,
-	.fb_imageblit	= cfb_imageblit,
-};
-
-static struct fb_videomode pvr2_modedb[] = {
-    /*
-     * Broadcast video modes (PAL and NTSC).  I'm unfamiliar with
-     * PAL-M and PAL-N, but from what I've read both modes parallel PAL and
-     * NTSC, so it shouldn't be a problem (I hope).
-     */
-
-    {
-	/* 640x480 @ 60Hz interlaced (NTSC) */
-	"ntsc_640x480i", 60, 640, 480, TV_CLK, 38, 33, 0, 18, 146, 26,
-	FB_SYNC_BROADCAST, FB_VMODE_INTERLACED | FB_VMODE_YWRAP
-    }, {
-	/* 640x240 @ 60Hz (NTSC) */
-	/* XXX: Broken! Don't use... */
-	"ntsc_640x240", 60, 640, 240, TV_CLK, 38, 33, 0, 0, 146, 22,
-	FB_SYNC_BROADCAST, FB_VMODE_YWRAP
-    }, {
-	/* 640x480 @ 60hz (VGA) */
-	"vga_640x480", 60, 640, 480, VGA_CLK, 38, 33, 0, 18, 146, 26,
-	0, FB_VMODE_YWRAP
-    },
-};
-
-#define NUM_TOTAL_MODES  ARRAY_SIZE(pvr2_modedb)
-
-#define DEFMODE_NTSC	0
-#define DEFMODE_PAL	0
-#define DEFMODE_VGA	2
-
-static int defmode = DEFMODE_NTSC;
-static char *mode_option = NULL;
-
-static inline void pvr2fb_set_pal_type(unsigned int type)
-{
-	struct pvr2fb_par *par = (struct pvr2fb_par *)fb_info->par;
-
-	fb_writel(type, par->mmio_base + 0x108);
-}
-
-static inline void pvr2fb_set_pal_entry(struct pvr2fb_par *par,
-					unsigned int regno,
-					unsigned int val)
-{
-	fb_writel(val, par->mmio_base + 0x1000 + (4 * regno));
-}
-
-static int pvr2fb_blank(int blank, struct fb_info *info)
-{
-	do_blank = blank ? blank : -1;
-	return 0;
-}
-
-static inline unsigned long get_line_length(int xres_virtual, int bpp)
-{
-	return (unsigned long)((((xres_virtual*bpp)+31)&~31) >> 3);
-}
-
-static void set_color_bitfields(struct fb_var_screeninfo *var)
-{
-	switch (var->bits_per_pixel) {
-	    case 16:        /* RGB 565 */
-		pvr2fb_set_pal_type(PAL_RGB565);
-		var->red.offset = 11;    var->red.length = 5;
-		var->green.offset = 5;   var->green.length = 6;
-		var->blue.offset = 0;    var->blue.length = 5;
-		var->transp.offset = 0;  var->transp.length = 0;
-		break;
-	    case 24:        /* RGB 888 */
-		var->red.offset = 16;    var->red.length = 8;
-		var->green.offset = 8;   var->green.length = 8;
-		var->blue.offset = 0;    var->blue.length = 8;
-		var->transp.offset = 0;  var->transp.length = 0;
-		break;
-	    case 32:        /* ARGB 8888 */
-		pvr2fb_set_pal_type(PAL_ARGB8888);
-		var->red.offset = 16;    var->red.length = 8;
-		var->green.offset = 8;   var->green.length = 8;
-		var->blue.offset = 0;    var->blue.length = 8;
-		var->transp.offset = 24; var->transp.length = 8;
-		break;
-	}
-}
-
-static int pvr2fb_setcolreg(unsigned int regno, unsigned int red,
-			    unsigned int green, unsigned int blue,
-                            unsigned int transp, struct fb_info *info)
-{
-	struct pvr2fb_par *par = (struct pvr2fb_par *)info->par;
-	unsigned int tmp;
-
-	if (regno > info->cmap.len)
-		return 1;
-
-	/*
-	 * We only support the hardware palette for 16 and 32bpp. It's also
-	 * expected that the palette format has been set by the time we get
-	 * here, so we don't waste time setting it again.
-	 */
-	switch (info->var.bits_per_pixel) {
-	    case 16: /* RGB 565 */
-		tmp =  (red   & 0xf800)       |
-		      ((green & 0xfc00) >> 5) |
-		      ((blue  & 0xf800) >> 11);
-
-		pvr2fb_set_pal_entry(par, regno, tmp);
-		break;
-	    case 24: /* RGB 888 */
-		red >>= 8; green >>= 8; blue >>= 8;
-		tmp = (red << 16) | (green << 8) | blue;
-		break;
-	    case 32: /* ARGB 8888 */
-		red >>= 8; green >>= 8; blue >>= 8;
-		tmp = (transp << 24) | (red << 16) | (green << 8) | blue;
-
-		pvr2fb_set_pal_entry(par, regno, tmp);
-		break;
-	    default:
-		pr_debug("Invalid bit depth %d?!?\n", info->var.bits_per_pixel);
-		return 1;
-	}
-
-	if (regno < 16)
-		((u32*)(info->pseudo_palette))[regno] = tmp;
-
-	return 0;
-}
-
-static int pvr2fb_set_par(struct fb_info *info)
-{
-	struct pvr2fb_par *par = (struct pvr2fb_par *)info->par;
-	struct fb_var_screeninfo *var = &info->var;
-	unsigned long line_length;
-	unsigned int vtotal;
-
-	/*
-	 * XXX: It's possible that a user could use a VGA box, change the cable
-	 * type in hardware (i.e. switch from VGA<->composite), then change
-	 * modes (i.e. switching to another VT).  If that happens we should
-	 * automagically change the output format to cope, but currently I
-	 * don't have a VGA box to make sure this works properly.
-	 */
-	cable_type = pvr2_init_cable();
-	if (cable_type == CT_VGA && video_output != VO_VGA)
-		video_output = VO_VGA;
-
-	var->vmode &= FB_VMODE_MASK;
-	if (var->vmode & FB_VMODE_INTERLACED && video_output != VO_VGA)
-		par->is_interlaced = 1;
-	/*
-	 * XXX: Need to be more creative with this (i.e. allow doublecan for
-	 * PAL/NTSC output).
-	 */
-	if (var->vmode & FB_VMODE_DOUBLE && video_output == VO_VGA)
-		par->is_doublescan = 1;
-
-	par->hsync_total = var->left_margin + var->xres + var->right_margin +
-	                   var->hsync_len;
-	par->vsync_total = var->upper_margin + var->yres + var->lower_margin +
-	                   var->vsync_len;
-
-	if (var->sync & FB_SYNC_BROADCAST) {
-		vtotal = par->vsync_total;
-		if (par->is_interlaced)
-			vtotal /= 2;
-		if (vtotal > (PAL_VTOTAL + NTSC_VTOTAL)/2) {
-			/* XXX: Check for start values here... */
-			/* XXX: Check hardware for PAL-compatibility */
-			par->borderstart_h = 116;
-			par->borderstart_v = 44;
-		} else {
-			/* NTSC video output */
-			par->borderstart_h = 126;
-			par->borderstart_v = 18;
-		}
-	} else {
-		/* VGA mode */
-		/* XXX: What else needs to be checked? */
-		/*
-		 * XXX: We have a little freedom in VGA modes, what ranges
-		 * should be here (i.e. hsync/vsync totals, etc.)?
-		 */
-		par->borderstart_h = 126;
-		par->borderstart_v = 40;
-	}
-
-	/* Calculate the remainding offsets */
-	par->diwstart_h = par->borderstart_h + var->left_margin;
-	par->diwstart_v = par->borderstart_v + var->upper_margin;
-	par->borderstop_h = par->diwstart_h + var->xres +
-			    var->right_margin;
-	par->borderstop_v = par->diwstart_v + var->yres +
-			    var->lower_margin;
-
-	if (!par->is_interlaced)
-		par->borderstop_v /= 2;
-	if (info->var.xres < 640)
-		par->is_lowres = 1;
-
-	line_length = get_line_length(var->xres_virtual, var->bits_per_pixel);
-	par->disp_start = info->fix.smem_start + (line_length * var->yoffset) * line_length;
-	info->fix.line_length = line_length;
-	return 0;
-}
-
-static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
-	struct pvr2fb_par *par = (struct pvr2fb_par *)info->par;
-	unsigned int vtotal, hsync_total;
-	unsigned long line_length;
-
-	if (var->pixclock != TV_CLK && var->pixclock != VGA_CLK) {
-		pr_debug("Invalid pixclock value %d\n", var->pixclock);
-		return -EINVAL;
-	}
-
-	if (var->xres < 320)
-		var->xres = 320;
-	if (var->yres < 240)
-		var->yres = 240;
-	if (var->xres_virtual < var->xres)
-		var->xres_virtual = var->xres;
-	if (var->yres_virtual < var->yres)
-		var->yres_virtual = var->yres;
-
-	if (var->bits_per_pixel <= 16)
-		var->bits_per_pixel = 16;
-	else if (var->bits_per_pixel <= 24)
-		var->bits_per_pixel = 24;
-	else if (var->bits_per_pixel <= 32)
-		var->bits_per_pixel = 32;
-
-	set_color_bitfields(var);
-
-	if (var->vmode & FB_VMODE_YWRAP) {
-		if (var->xoffset || var->yoffset < 0 ||
-		    var->yoffset >= var->yres_virtual) {
-			var->xoffset = var->yoffset = 0;
-		} else {
-			if (var->xoffset > var->xres_virtual - var->xres ||
-			    var->yoffset > var->yres_virtual - var->yres ||
-			    var->xoffset < 0 || var->yoffset < 0)
-				var->xoffset = var->yoffset = 0;
-		}
-	} else {
-		var->xoffset = var->yoffset = 0;
-	}
-
-	/*
-	 * XXX: Need to be more creative with this (i.e. allow doublecan for
-	 * PAL/NTSC output).
-	 */
-	if (var->yres < 480 && video_output == VO_VGA)
-		var->vmode |= FB_VMODE_DOUBLE;
-
-	if (video_output != VO_VGA) {
-		var->sync |= FB_SYNC_BROADCAST;
-		var->vmode |= FB_VMODE_INTERLACED;
-	} else {
-		var->sync &= ~FB_SYNC_BROADCAST;
-		var->vmode &= ~FB_VMODE_INTERLACED;
-		var->vmode |= FB_VMODE_NONINTERLACED;
-	}
-
-	if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_TEST) {
-		var->right_margin = par->borderstop_h -
-				   (par->diwstart_h + var->xres);
-		var->left_margin  = par->diwstart_h - par->borderstart_h;
-		var->hsync_len    = par->borderstart_h +
-		                   (par->hsync_total - par->borderstop_h);
-
-		var->upper_margin = par->diwstart_v - par->borderstart_v;
-		var->lower_margin = par->borderstop_v -
-				   (par->diwstart_v + var->yres);
-		var->vsync_len    = par->borderstop_v +
-				   (par->vsync_total - par->borderstop_v);
-	}
-
-	hsync_total = var->left_margin + var->xres + var->right_margin +
-		      var->hsync_len;
-	vtotal = var->upper_margin + var->yres + var->lower_margin +
-		 var->vsync_len;
-
-	if (var->sync & FB_SYNC_BROADCAST) {
-		if (var->vmode & FB_VMODE_INTERLACED)
-			vtotal /= 2;
-		if (vtotal > (PAL_VTOTAL + NTSC_VTOTAL)/2) {
-			/* PAL video output */
-			/* XXX: Should be using a range here ... ? */
-			if (hsync_total != PAL_HTOTAL) {
-				pr_debug("invalid hsync total for PAL\n");
-				return -EINVAL;
-			}
-		} else {
-			/* NTSC video output */
-			if (hsync_total != NTSC_HTOTAL) {
-				pr_debug("invalid hsync total for NTSC\n");
-				return -EINVAL;
-			}
-		}
-	}
-
-	/* Check memory sizes */
-	line_length = get_line_length(var->xres_virtual, var->bits_per_pixel);
-	if (line_length * var->yres_virtual > info->fix.smem_len)
-		return -ENOMEM;
-
-	return 0;
-}
-
-static void pvr2_update_display(struct fb_info *info)
-{
-	struct pvr2fb_par *par = (struct pvr2fb_par *) info->par;
-	struct fb_var_screeninfo *var = &info->var;
-
-	/* Update the start address of the display image */
-	fb_writel(par->disp_start, DISP_DIWADDRL);
-	fb_writel(par->disp_start +
-		  get_line_length(var->xoffset+var->xres, var->bits_per_pixel),
-	          DISP_DIWADDRS);
-}
-
-/*
- * Initialize the video mode.  Currently, the 16bpp and 24bpp modes aren't
- * very stable.  It's probably due to the fact that a lot of the 2D video
- * registers are still undocumented.
- */
-
-static void pvr2_init_display(struct fb_info *info)
-{
-	struct pvr2fb_par *par = (struct pvr2fb_par *) info->par;
-	struct fb_var_screeninfo *var = &info->var;
-	unsigned int diw_height, diw_width, diw_modulo = 1;
-	unsigned int bytesperpixel = var->bits_per_pixel >> 3;
-
-	/* hsync and vsync totals */
-	fb_writel((par->vsync_total << 16) | par->hsync_total, DISP_SYNCSIZE);
-
-	/* column height, modulo, row width */
-	/* since we're "panning" within vram, we need to offset things based
-	 * on the offset from the virtual x start to our real gfx. */
-	if (video_output != VO_VGA && par->is_interlaced)
-		diw_modulo += info->fix.line_length / 4;
-	diw_height = (par->is_interlaced ? var->yres / 2 : var->yres);
-	diw_width = get_line_length(var->xres, var->bits_per_pixel) / 4;
-	fb_writel((diw_modulo << 20) | (--diw_height << 10) | --diw_width,
-	          DISP_DIWSIZE);
-
-	/* display address, long and short fields */
-	fb_writel(par->disp_start, DISP_DIWADDRL);
-	fb_writel(par->disp_start +
-	          get_line_length(var->xoffset+var->xres, var->bits_per_pixel),
-	          DISP_DIWADDRS);
-
-	/* border horizontal, border vertical, border color */
-	fb_writel((par->borderstart_h << 16) | par->borderstop_h, DISP_BRDRHORZ);
-	fb_writel((par->borderstart_v << 16) | par->borderstop_v, DISP_BRDRVERT);
-	fb_writel(0, DISP_BRDRCOLR);
-
-	/* display window start position */
-	fb_writel(par->diwstart_h, DISP_DIWHSTRT);
-	fb_writel((par->diwstart_v << 16) | par->diwstart_v, DISP_DIWVSTRT);
-
-	/* misc. settings */
-	fb_writel((0x16 << 16) | par->is_lowres, DISP_DIWCONF);
-
-	/* clock doubler (for VGA), scan doubler, display enable */
-	fb_writel(((video_output == VO_VGA) << 23) |
-	          (par->is_doublescan << 1) | 1, DISP_DIWMODE);
-
-	/* bits per pixel */
-	fb_writel(fb_readl(DISP_DIWMODE) | (--bytesperpixel << 2), DISP_DIWMODE);
-	fb_writel(bytesperpixel << 2, DISP_PIXDEPTH);
-
-	/* video enable, color sync, interlace,
-	 * hsync and vsync polarity (currently unused) */
-	fb_writel(0x100 | ((par->is_interlaced /*|4*/) << 4), DISP_SYNCCONF);
-}
-
-/* Simulate blanking by making the border cover the entire screen */
-
-#define BLANK_BIT (1<<3)
-
-static void pvr2_do_blank(void)
-{
-	struct pvr2fb_par *par = currentpar;
-	unsigned long diwconf;
-
-	diwconf = fb_readl(DISP_DIWCONF);
-	if (do_blank > 0)
-		fb_writel(diwconf | BLANK_BIT, DISP_DIWCONF);
-	else
-		fb_writel(diwconf & ~BLANK_BIT, DISP_DIWCONF);
-
-	is_blanked = do_blank > 0 ? do_blank : 0;
-}
-
-static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id)
-{
-	struct fb_info *info = dev_id;
-
-	if (do_vmode_pan || do_vmode_full)
-		pvr2_update_display(info);
-	if (do_vmode_full)
-		pvr2_init_display(info);
-	if (do_vmode_pan)
-		do_vmode_pan = 0;
-	if (do_vmode_full)
-		do_vmode_full = 0;
-	if (do_blank) {
-		pvr2_do_blank();
-		do_blank = 0;
-	}
-	return IRQ_HANDLED;
-}
-
-/*
- * Determine the cable type and initialize the cable output format.  Don't do
- * anything if the cable type has been overidden (via "cable:XX").
- */
-
-#define PCTRA 0xff80002c
-#define PDTRA 0xff800030
-#define VOUTC 0xa0702c00
-
-static int pvr2_init_cable(void)
-{
-	if (cable_type < 0) {
-		fb_writel((fb_readl(PCTRA) & 0xfff0ffff) | 0x000a0000,
-	                  PCTRA);
-		cable_type = (fb_readw(PDTRA) >> 8) & 3;
-	}
-
-	/* Now select the output format (either composite or other) */
-	/* XXX: Save the previous val first, as this reg is also AICA
-	  related */
-	if (cable_type == CT_COMPOSITE)
-		fb_writel(3 << 8, VOUTC);
-	else if (cable_type == CT_RGB)
-		fb_writel(1 << 9, VOUTC);
-	else
-		fb_writel(0, VOUTC);
-
-	return cable_type;
-}
-
-#ifdef CONFIG_PVR2_DMA
-static ssize_t pvr2fb_write(struct fb_info *info, const char *buf,
-			    size_t count, loff_t *ppos)
-{
-	unsigned long dst, start, end, len;
-	unsigned int nr_pages;
-	struct page **pages;
-	int ret, i;
-
-	nr_pages = (count + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
-	pages = kmalloc(nr_pages * sizeof(struct page *), GFP_KERNEL);
-	if (!pages)
-		return -ENOMEM;
-
-	down_read(&current->mm->mmap_sem);
-	ret = get_user_pages(current, current->mm, (unsigned long)buf,
-			     nr_pages, WRITE, 0, pages, NULL);
-	up_read(&current->mm->mmap_sem);
-
-	if (ret < nr_pages) {
-		nr_pages = ret;
-		ret = -EINVAL;
-		goto out_unmap;
-	}
-
-	dma_configure_channel(shdma, 0x12c1);
-
-	dst   = (unsigned long)fb_info->screen_base + *ppos;
-	start = (unsigned long)page_address(pages[0]);
-	end   = (unsigned long)page_address(pages[nr_pages]);
-	len   = nr_pages << PAGE_SHIFT;
-
-	/* Half-assed contig check */
-	if (start + len == end) {
-		/* As we do this in one shot, it's either all or nothing.. */
-		if ((*ppos + len) > fb_info->fix.smem_len) {
-			ret = -ENOSPC;
-			goto out_unmap;
-		}
-
-		dma_write(shdma, start, 0, len);
-		dma_write(pvr2dma, 0, dst, len);
-		dma_wait_for_completion(pvr2dma);
-
-		goto out;
-	}
-
-	/* Not contiguous, writeout per-page instead.. */
-	for (i = 0; i < nr_pages; i++, dst += PAGE_SIZE) {
-		if ((*ppos + (i << PAGE_SHIFT)) > fb_info->fix.smem_len) {
-			ret = -ENOSPC;
-			goto out_unmap;
-		}
-
-		dma_write_page(shdma, (unsigned long)page_address(pages[i]), 0);
-		dma_write_page(pvr2dma, 0, dst);
-		dma_wait_for_completion(pvr2dma);
-	}
-
-out:
-	*ppos += count;
-	ret = count;
-
-out_unmap:
-	for (i = 0; i < nr_pages; i++)
-		page_cache_release(pages[i]);
-
-	kfree(pages);
-
-	return ret;
-}
-#endif /* CONFIG_PVR2_DMA */
-
-/**
- * pvr2fb_common_init
- *
- * Common init code for the PVR2 chips.
- *
- * This mostly takes care of the common aspects of the fb setup and
- * registration. It's expected that the board-specific init code has
- * already setup pvr2_fix with something meaningful at this point.
- *
- * Device info reporting is also done here, as well as picking a sane
- * default from the modedb. For board-specific modelines, simply define
- * a per-board modedb.
- *
- * Also worth noting is that the cable and video output types are likely
- * always going to be VGA for the PCI-based PVR2 boards, but we leave this
- * in for flexibility anyways. Who knows, maybe someone has tv-out on a
- * PCI-based version of these things ;-)
- */
-static int pvr2fb_common_init(void)
-{
-	struct pvr2fb_par *par = currentpar;
-	unsigned long modememused, rev;
-
-	fb_info->screen_base = ioremap_nocache(pvr2_fix.smem_start,
-					       pvr2_fix.smem_len);
-
-	if (!fb_info->screen_base) {
-		printk(KERN_ERR "pvr2fb: Failed to remap smem space\n");
-		goto out_err;
-	}
-
-	par->mmio_base = (unsigned long)ioremap_nocache(pvr2_fix.mmio_start,
-							pvr2_fix.mmio_len);
-	if (!par->mmio_base) {
-		printk(KERN_ERR "pvr2fb: Failed to remap mmio space\n");
-		goto out_err;
-	}
-
-	fb_memset(fb_info->screen_base, 0, pvr2_fix.smem_len);
-
-	pvr2_fix.ypanstep	= nopan  ? 0 : 1;
-	pvr2_fix.ywrapstep	= nowrap ? 0 : 1;
-
-	fb_info->fbops		= &pvr2fb_ops;
-	fb_info->fix		= pvr2_fix;
-	fb_info->par		= currentpar;
-	fb_info->pseudo_palette	= currentpar->palette;
-	fb_info->flags		= FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
-
-	if (video_output == VO_VGA)
-		defmode = DEFMODE_VGA;
-
-	if (!mode_option)
-		mode_option = "640x480@60";
-
-	if (!fb_find_mode(&fb_info->var, fb_info, mode_option, pvr2_modedb,
-	                  NUM_TOTAL_MODES, &pvr2_modedb[defmode], 16))
-		fb_info->var = pvr2_var;
-
-	fb_alloc_cmap(&fb_info->cmap, 256, 0);
-
-	if (register_framebuffer(fb_info) < 0)
-		goto out_err;
-	/*Must write PIXDEPTH to register before anything is displayed - so force init */
-	pvr2_init_display(fb_info);
-
-	modememused = get_line_length(fb_info->var.xres_virtual,
-				      fb_info->var.bits_per_pixel);
-	modememused *= fb_info->var.yres_virtual;
-
-	rev = fb_readl(par->mmio_base + 0x04);
-
-	fb_info(fb_info, "%s (rev %ld.%ld) frame buffer device, using %ldk/%ldk of video memory\n",
-		fb_info->fix.id, (rev >> 4) & 0x0f, rev & 0x0f,
-		modememused >> 10,
-		(unsigned long)(fb_info->fix.smem_len >> 10));
-	fb_info(fb_info, "Mode %dx%d-%d pitch = %ld cable: %s video output: %s\n",
-		fb_info->var.xres, fb_info->var.yres,
-		fb_info->var.bits_per_pixel,
-		get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel),
-		(char *)pvr2_get_param(cables, NULL, cable_type, 3),
-		(char *)pvr2_get_param(outputs, NULL, video_output, 3));
-
-#ifdef CONFIG_SH_STORE_QUEUES
-	fb_notice(fb_info, "registering with SQ API\n");
-
-	pvr2fb_map = sq_remap(fb_info->fix.smem_start, fb_info->fix.smem_len,
-			      fb_info->fix.id, PAGE_SHARED);
-
-	fb_notice(fb_info, "Mapped video memory to SQ addr 0x%lx\n",
-		  pvr2fb_map);
-#endif
-
-	return 0;
-
-out_err:
-	if (fb_info->screen_base)
-		iounmap(fb_info->screen_base);
-	if (par->mmio_base)
-		iounmap((void *)par->mmio_base);
-
-	return -ENXIO;
-}
-
-#ifdef CONFIG_SH_DREAMCAST
-static int __init pvr2fb_dc_init(void)
-{
-	if (!mach_is_dreamcast())
-		return -ENXIO;
-
-	/* Make a guess at the monitor based on the attached cable */
-	if (pvr2_init_cable() == CT_VGA) {
-		fb_info->monspecs.hfmin = 30000;
-		fb_info->monspecs.hfmax = 70000;
-		fb_info->monspecs.vfmin = 60;
-		fb_info->monspecs.vfmax = 60;
-	} else {
-		/* Not VGA, using a TV (taken from acornfb) */
-		fb_info->monspecs.hfmin = 15469;
-		fb_info->monspecs.hfmax = 15781;
-		fb_info->monspecs.vfmin = 49;
-		fb_info->monspecs.vfmax = 51;
-	}
-
-	/*
-	 * XXX: This needs to pull default video output via BIOS or other means
-	 */
-	if (video_output < 0) {
-		if (cable_type == CT_VGA) {
-			video_output = VO_VGA;
-		} else {
-			video_output = VO_NTSC;
-		}
-	}
-
-	/*
-	 * Nothing exciting about the DC PVR2 .. only a measly 8MiB.
-	 */
-	pvr2_fix.smem_start	= 0xa5000000;	/* RAM starts here */
-	pvr2_fix.smem_len	= 8 << 20;
-
-	pvr2_fix.mmio_start	= 0xa05f8000;	/* registers start here */
-	pvr2_fix.mmio_len	= 0x2000;
-
-	if (request_irq(HW_EVENT_VSYNC, pvr2fb_interrupt, IRQF_SHARED,
-	                "pvr2 VBL handler", fb_info)) {
-		return -EBUSY;
-	}
-
-#ifdef CONFIG_PVR2_DMA
-	if (request_dma(pvr2dma, "pvr2") != 0) {
-		free_irq(HW_EVENT_VSYNC, fb_info);
-		return -EBUSY;
-	}
-#endif
-
-	return pvr2fb_common_init();
-}
-
-static void __exit pvr2fb_dc_exit(void)
-{
-	if (fb_info->screen_base) {
-		iounmap(fb_info->screen_base);
-		fb_info->screen_base = NULL;
-	}
-	if (currentpar->mmio_base) {
-		iounmap((void *)currentpar->mmio_base);
-		currentpar->mmio_base = 0;
-	}
-
-	free_irq(HW_EVENT_VSYNC, fb_info);
-#ifdef CONFIG_PVR2_DMA
-	free_dma(pvr2dma);
-#endif
-}
-#endif /* CONFIG_SH_DREAMCAST */
-
-#ifdef CONFIG_PCI
-static int pvr2fb_pci_probe(struct pci_dev *pdev,
-			    const struct pci_device_id *ent)
-{
-	int ret;
-
-	ret = pci_enable_device(pdev);
-	if (ret) {
-		printk(KERN_ERR "pvr2fb: PCI enable failed\n");
-		return ret;
-	}
-
-	ret = pci_request_regions(pdev, "pvr2fb");
-	if (ret) {
-		printk(KERN_ERR "pvr2fb: PCI request regions failed\n");
-		return ret;
-	}
-
-	/*
-	 * Slightly more exciting than the DC PVR2 .. 16MiB!
-	 */
-	pvr2_fix.smem_start	= pci_resource_start(pdev, 0);
-	pvr2_fix.smem_len	= pci_resource_len(pdev, 0);
-
-	pvr2_fix.mmio_start	= pci_resource_start(pdev, 1);
-	pvr2_fix.mmio_len	= pci_resource_len(pdev, 1);
-
-	fb_info->device		= &pdev->dev;
-
-	return pvr2fb_common_init();
-}
-
-static void pvr2fb_pci_remove(struct pci_dev *pdev)
-{
-	if (fb_info->screen_base) {
-		iounmap(fb_info->screen_base);
-		fb_info->screen_base = NULL;
-	}
-	if (currentpar->mmio_base) {
-		iounmap((void *)currentpar->mmio_base);
-		currentpar->mmio_base = 0;
-	}
-
-	pci_release_regions(pdev);
-}
-
-static struct pci_device_id pvr2fb_pci_tbl[] = {
-	{ PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_NEON250,
-	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-	{ 0, },
-};
-
-MODULE_DEVICE_TABLE(pci, pvr2fb_pci_tbl);
-
-static struct pci_driver pvr2fb_pci_driver = {
-	.name		= "pvr2fb",
-	.id_table	= pvr2fb_pci_tbl,
-	.probe		= pvr2fb_pci_probe,
-	.remove		= pvr2fb_pci_remove,
-};
-
-static int __init pvr2fb_pci_init(void)
-{
-	return pci_register_driver(&pvr2fb_pci_driver);
-}
-
-static void __exit pvr2fb_pci_exit(void)
-{
-	pci_unregister_driver(&pvr2fb_pci_driver);
-}
-#endif /* CONFIG_PCI */
-
-static int pvr2_get_param(const struct pvr2_params *p, const char *s, int val,
-			  int size)
-{
-	int i;
-
-	for (i = 0 ; i < size ; i++ ) {
-		if (s != NULL) {
-			if (!strnicmp(p[i].name, s, strlen(s)))
-				return p[i].val;
-		} else {
-			if (p[i].val == val)
-				return (int)p[i].name;
-		}
-	}
-	return -1;
-}
-
-/*
- * Parse command arguments.  Supported arguments are:
- *    inverse                             Use inverse color maps
- *    cable:composite|rgb|vga             Override the video cable type
- *    output:NTSC|PAL|VGA                 Override the video output format
- *
- *    <xres>x<yres>[-<bpp>][@<refresh>]   or,
- *    <name>[-<bpp>][@<refresh>]          Startup using this video mode
- */
-
-#ifndef MODULE
-static int __init pvr2fb_setup(char *options)
-{
-	char *this_opt;
-	char cable_arg[80];
-	char output_arg[80];
-
-	if (!options || !*options)
-		return 0;
-
-	while ((this_opt = strsep(&options, ","))) {
-		if (!*this_opt)
-			continue;
-		if (!strcmp(this_opt, "inverse")) {
-			fb_invert_cmaps();
-		} else if (!strncmp(this_opt, "cable:", 6)) {
-			strcpy(cable_arg, this_opt + 6);
-		} else if (!strncmp(this_opt, "output:", 7)) {
-			strcpy(output_arg, this_opt + 7);
-		} else if (!strncmp(this_opt, "nopan", 5)) {
-			nopan = 1;
-		} else if (!strncmp(this_opt, "nowrap", 6)) {
-			nowrap = 1;
-		} else {
-			mode_option = this_opt;
-		}
-	}
-
-	if (*cable_arg)
-		cable_type = pvr2_get_param(cables, cable_arg, 0, 3);
-	if (*output_arg)
-		video_output = pvr2_get_param(outputs, output_arg, 0, 3);
-
-	return 0;
-}
-#endif
-
-static struct pvr2_board {
-	int (*init)(void);
-	void (*exit)(void);
-	char name[16];
-} board_driver[] __refdata = {
-#ifdef CONFIG_SH_DREAMCAST
-	{ pvr2fb_dc_init, pvr2fb_dc_exit, "Sega DC PVR2" },
-#endif
-#ifdef CONFIG_PCI
-	{ pvr2fb_pci_init, pvr2fb_pci_exit, "PCI PVR2" },
-#endif
-	{ 0, },
-};
-
-static int __init pvr2fb_init(void)
-{
-	int i, ret = -ENODEV;
-	int size;
-
-#ifndef MODULE
-	char *option = NULL;
-
-	if (fb_get_options("pvr2fb", &option))
-		return -ENODEV;
-	pvr2fb_setup(option);
-#endif
-	size = sizeof(struct fb_info) + sizeof(struct pvr2fb_par) + 16 * sizeof(u32);
-
-	fb_info = framebuffer_alloc(sizeof(struct pvr2fb_par), NULL);
-
-	if (!fb_info) {
-		printk(KERN_ERR "Failed to allocate memory for fb_info\n");
-		return -ENOMEM;
-	}
-
-
-	currentpar = fb_info->par;
-
-	for (i = 0; i < ARRAY_SIZE(board_driver); i++) {
-		struct pvr2_board *pvr_board = board_driver + i;
-
-		if (!pvr_board->init)
-			continue;
-
-		ret = pvr_board->init();
-
-		if (ret != 0) {
-			printk(KERN_ERR "pvr2fb: Failed init of %s device\n",
-				pvr_board->name);
-			framebuffer_release(fb_info);
-			break;
-		}
-	}
-
-	return ret;
-}
-
-static void __exit pvr2fb_exit(void)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(board_driver); i++) {
-		struct pvr2_board *pvr_board = board_driver + i;
-
-		if (pvr_board->exit)
-			pvr_board->exit();
-	}
-
-#ifdef CONFIG_SH_STORE_QUEUES
-	sq_unmap(pvr2fb_map);
-#endif
-
-	unregister_framebuffer(fb_info);
-	framebuffer_release(fb_info);
-}
-
-module_init(pvr2fb_init);
-module_exit(pvr2fb_exit);
-
-MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>, M. R. Brown <mrbrown@0xd6.org>");
-MODULE_DESCRIPTION("Framebuffer driver for NEC PowerVR 2 based graphics boards");
-MODULE_LICENSE("GPL");