[linux.git] / drivers / video / leo.c

/* leo.c: LEO frame buffer driver
 *
 * Copyright (C) 2003, 2006 David S. Miller ([email protected])
 * Copyright (C) 1996-1999 Jakub Jelinek ([email protected])
 * Copyright (C) 1997 Michal Rehacek ([email protected])
 *
 * Driver layout based loosely on tgafb.c, see that file for credits.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/mm.h>
#include <linux/of_device.h>
#include <linux/io.h>

#include <asm/fbio.h>

#include "sbuslib.h"

/*
 * Local functions.
 */

static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned,
			 unsigned, struct fb_info *);
static int leo_blank(int, struct fb_info *);

static int leo_mmap(struct fb_info *, struct vm_area_struct *);
static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *);

/*
 *  Frame buffer operations
 */

static struct fb_ops leo_ops = {
	.owner			= THIS_MODULE,
	.fb_setcolreg		= leo_setcolreg,
	.fb_blank		= leo_blank,
	.fb_pan_display		= leo_pan_display,
	.fb_fillrect		= cfb_fillrect,
	.fb_copyarea		= cfb_copyarea,
	.fb_imageblit		= cfb_imageblit,
	.fb_mmap		= leo_mmap,
	.fb_ioctl		= leo_ioctl,
#ifdef CONFIG_COMPAT
	.fb_compat_ioctl	= sbusfb_compat_ioctl,
#endif
};

#define LEO_OFF_LC_SS0_KRN	0x00200000UL
#define LEO_OFF_LC_SS0_USR	0x00201000UL
#define LEO_OFF_LC_SS1_KRN	0x01200000UL
#define LEO_OFF_LC_SS1_USR	0x01201000UL
#define LEO_OFF_LD_SS0		0x00400000UL
#define LEO_OFF_LD_SS1		0x01400000UL
#define LEO_OFF_LD_GBL		0x00401000UL
#define LEO_OFF_LX_KRN		0x00600000UL
#define LEO_OFF_LX_CURSOR	0x00601000UL
#define LEO_OFF_SS0		0x00800000UL
#define LEO_OFF_SS1		0x01800000UL
#define LEO_OFF_UNK		0x00602000UL
#define LEO_OFF_UNK2		0x00000000UL

#define LEO_CUR_ENABLE		0x00000080
#define LEO_CUR_UPDATE		0x00000030
#define LEO_CUR_PROGRESS	0x00000006
#define LEO_CUR_UPDATECMAP	0x00000003

#define LEO_CUR_TYPE_MASK	0x00000000
#define LEO_CUR_TYPE_IMAGE	0x00000020
#define LEO_CUR_TYPE_CMAP	0x00000050

struct leo_cursor {
	u8	xxx0[16];
	u32	cur_type;
	u32	cur_misc;
	u32	cur_cursxy;
	u32	cur_data;
};

#define LEO_KRN_TYPE_CLUT0	0x00001000
#define LEO_KRN_TYPE_CLUT1	0x00001001
#define LEO_KRN_TYPE_CLUT2	0x00001002
#define LEO_KRN_TYPE_WID	0x00001003
#define LEO_KRN_TYPE_UNK	0x00001006
#define LEO_KRN_TYPE_VIDEO	0x00002003
#define LEO_KRN_TYPE_CLUTDATA	0x00004000
#define LEO_KRN_CSR_ENABLE	0x00000008
#define LEO_KRN_CSR_PROGRESS	0x00000004
#define LEO_KRN_CSR_UNK		0x00000002
#define LEO_KRN_CSR_UNK2	0x00000001

struct leo_lx_krn {
	u32	krn_type;
	u32	krn_csr;
	u32	krn_value;
};

struct leo_lc_ss0_krn {
	u32 	misc;
	u8	xxx0[0x800-4];
	u32	rev;
};

struct leo_lc_ss0_usr {
	u32	csr;
	u32	addrspace;
	u32 	fontmsk;
	u32	fontt;
	u32	extent;
	u32	src;
	u32	dst;
	u32	copy;
	u32	fill;
};

struct leo_lc_ss1_krn {
	u8	unknown;
};

struct leo_lc_ss1_usr {
	u8	unknown;
};

struct leo_ld_ss0 {
	u8	xxx0[0xe00];
	u32	csr;
	u32	wid;
	u32	wmask;
	u32	widclip;
	u32	vclipmin;
	u32	vclipmax;
	u32	pickmin;	/* SS1 only */
	u32	pickmax;	/* SS1 only */
	u32	fg;
	u32	bg;
	u32	src;		/* Copy/Scroll (SS0 only) */
	u32	dst;		/* Copy/Scroll/Fill (SS0 only) */
	u32	extent;		/* Copy/Scroll/Fill size (SS0 only) */
	u32	xxx1[3];
	u32	setsem;		/* SS1 only */
	u32	clrsem;		/* SS1 only */
	u32	clrpick;	/* SS1 only */
	u32	clrdat;		/* SS1 only */
	u32	alpha;		/* SS1 only */
	u8	xxx2[0x2c];
	u32	winbg;
	u32	planemask;
	u32	rop;
	u32	z;
	u32	dczf;		/* SS1 only */
	u32	dczb;		/* SS1 only */
	u32	dcs;		/* SS1 only */
	u32	dczs;		/* SS1 only */
	u32	pickfb;		/* SS1 only */
	u32	pickbb;		/* SS1 only */
	u32	dcfc;		/* SS1 only */
	u32	forcecol;	/* SS1 only */
	u32	door[8];	/* SS1 only */
	u32	pick[5];	/* SS1 only */
};

#define LEO_SS1_MISC_ENABLE	0x00000001
#define LEO_SS1_MISC_STEREO	0x00000002
struct leo_ld_ss1 {
	u8	xxx0[0xef4];
	u32	ss1_misc;
};

struct leo_ld_gbl {
	u8	unknown;
};

struct leo_par {
	spinlock_t		lock;
	struct leo_lx_krn	__iomem *lx_krn;
	struct leo_lc_ss0_usr	__iomem *lc_ss0_usr;
	struct leo_ld_ss0	__iomem *ld_ss0;
	struct leo_ld_ss1	__iomem *ld_ss1;
	struct leo_cursor	__iomem *cursor;
	u32			extent;
	u32			clut_data[256];

	u32			flags;
#define LEO_FLAG_BLANKED	0x00000001

	unsigned long		which_io;
};

static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
{
	int i;

	for (i = 0;
	     (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
	     i < 300000;
	     i++)
		udelay(1); /* Busy wait at most 0.3 sec */
	return;
}

static void leo_switch_from_graph(struct fb_info *info)
{
	struct leo_par *par = (struct leo_par *) info->par;
	struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
	struct leo_cursor __iomem *cursor = par->cursor;
	unsigned long flags;
	u32 val;

	spin_lock_irqsave(&par->lock, flags);

	par->extent = ((info->var.xres - 1) |
		       ((info->var.yres - 1) << 16));

	sbus_writel(0xffffffff, &ss->wid);
	sbus_writel(0xffff, &ss->wmask);
	sbus_writel(0, &ss->vclipmin);
	sbus_writel(par->extent, &ss->vclipmax);
	sbus_writel(0, &ss->fg);
	sbus_writel(0xff000000, &ss->planemask);
	sbus_writel(0x310850, &ss->rop);
	sbus_writel(0, &ss->widclip);
	sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11),
		    &par->lc_ss0_usr->extent);
	sbus_writel(4, &par->lc_ss0_usr->addrspace);
	sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
	sbus_writel(0, &par->lc_ss0_usr->fontt);
	do {
		val = sbus_readl(&par->lc_ss0_usr->csr);
	} while (val & 0x20000000);

	/* setup screen buffer for cfb_* functions */
	sbus_writel(1, &ss->wid);
	sbus_writel(0x00ffffff, &ss->planemask);
	sbus_writel(0x310b90, &ss->rop);
	sbus_writel(0, &par->lc_ss0_usr->addrspace);

	/* hide cursor */
	sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc);

	spin_unlock_irqrestore(&par->lock, flags);
}

static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
{
	/* We just use this to catch switches out of
	 * graphics mode.
	 */
	leo_switch_from_graph(info);

	if (var->xoffset || var->yoffset || var->vmode)
		return -EINVAL;
	return 0;
}

/**
 *      leo_setcolreg - Optional function. Sets a color register.
 *      @regno: boolean, 0 copy local, 1 get_user() function
 *      @red: frame buffer colormap structure
 *      @green: The green value which can be up to 16 bits wide
 *      @blue:  The blue value which can be up to 16 bits wide.
 *      @transp: If supported the alpha value which can be up to 16 bits wide.
 *      @info: frame buffer info structure
 */
static int leo_setcolreg(unsigned regno,
			 unsigned red, unsigned green, unsigned blue,
			 unsigned transp, struct fb_info *info)
{
	struct leo_par *par = (struct leo_par *) info->par;
	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	unsigned long flags;
	u32 val;
	int i;

	if (regno >= 256)
		return 1;

	red >>= 8;
	green >>= 8;
	blue >>= 8;

	par->clut_data[regno] = red | (green << 8) | (blue << 16);

	spin_lock_irqsave(&par->lock, flags);

	leo_wait(lx_krn);

	sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type);
	for (i = 0; i < 256; i++)
		sbus_writel(par->clut_data[i], &lx_krn->krn_value);
	sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);

	val = sbus_readl(&lx_krn->krn_csr);
	val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2);
	sbus_writel(val, &lx_krn->krn_csr);

	spin_unlock_irqrestore(&par->lock, flags);

	return 0;
}

/**
 *      leo_blank - Optional function.  Blanks the display.
 *      @blank_mode: the blank mode we want.
 *      @info: frame buffer structure that represents a single frame buffer
 */
static int leo_blank(int blank, struct fb_info *info)
{
	struct leo_par *par = (struct leo_par *) info->par;
	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	unsigned long flags;
	u32 val;

	spin_lock_irqsave(&par->lock, flags);

	switch (blank) {
	case FB_BLANK_UNBLANK: /* Unblanking */
		val = sbus_readl(&lx_krn->krn_csr);
		val |= LEO_KRN_CSR_ENABLE;
		sbus_writel(val, &lx_krn->krn_csr);
		par->flags &= ~LEO_FLAG_BLANKED;
		break;

	case FB_BLANK_NORMAL: /* Normal blanking */
	case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
	case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
	case FB_BLANK_POWERDOWN: /* Poweroff */
		val = sbus_readl(&lx_krn->krn_csr);
		val &= ~LEO_KRN_CSR_ENABLE;
		sbus_writel(val, &lx_krn->krn_csr);
		par->flags |= LEO_FLAG_BLANKED;
		break;
	}

	spin_unlock_irqrestore(&par->lock, flags);

	return 0;
}

static struct sbus_mmap_map leo_mmap_map[] = {
	{
		.voff	= LEO_SS0_MAP,
		.poff	= LEO_OFF_SS0,
		.size	= 0x800000
	},
	{
		.voff	= LEO_LC_SS0_USR_MAP,
		.poff	= LEO_OFF_LC_SS0_USR,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LD_SS0_MAP,
		.poff	= LEO_OFF_LD_SS0,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LX_CURSOR_MAP,
		.poff	= LEO_OFF_LX_CURSOR,
		.size	= 0x1000
	},
	{
		.voff	= LEO_SS1_MAP,
		.poff	= LEO_OFF_SS1,
		.size	= 0x800000
	},
	{
		.voff	= LEO_LC_SS1_USR_MAP,
		.poff	= LEO_OFF_LC_SS1_USR,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LD_SS1_MAP,
		.poff	= LEO_OFF_LD_SS1,
		.size	= 0x1000
	},
	{
		.voff	= LEO_UNK_MAP,
		.poff	= LEO_OFF_UNK,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LX_KRN_MAP,
		.poff	= LEO_OFF_LX_KRN,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LC_SS0_KRN_MAP,
		.poff	= LEO_OFF_LC_SS0_KRN,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LC_SS1_KRN_MAP,
		.poff	= LEO_OFF_LC_SS1_KRN,
		.size	= 0x1000
	},
	{
		.voff	= LEO_LD_GBL_MAP,
		.poff	= LEO_OFF_LD_GBL,
		.size	= 0x1000
	},
	{
		.voff	= LEO_UNK2_MAP,
		.poff	= LEO_OFF_UNK2,
		.size	= 0x100000
	},
	{ .size = 0 }
};

static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
	struct leo_par *par = (struct leo_par *)info->par;

	return sbusfb_mmap_helper(leo_mmap_map,
				  info->fix.smem_start, info->fix.smem_len,
				  par->which_io, vma);
}

static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
{
	return sbusfb_ioctl_helper(cmd, arg, info,
				   FBTYPE_SUNLEO, 32, info->fix.smem_len);
}

/*
 *  Initialisation
 */

static void
leo_init_fix(struct fb_info *info, struct device_node *dp)
{
	strlcpy(info->fix.id, dp->name, sizeof(info->fix.id));

	info->fix.type = FB_TYPE_PACKED_PIXELS;
	info->fix.visual = FB_VISUAL_TRUECOLOR;

	info->fix.line_length = 8192;

	info->fix.accel = FB_ACCEL_SUN_LEO;
}

static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl)
{
	struct leo_par *par = (struct leo_par *) info->par;
	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	struct fb_wid_item *wi;
	unsigned long flags;
	u32 val;
	int i, j;

	spin_lock_irqsave(&par->lock, flags);

	leo_wait(lx_krn);

	for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
		switch (wi->wi_type) {
		case FB_WID_DBL_8:
			j = (wi->wi_index & 0xf) + 0x40;
			break;

		case FB_WID_DBL_24:
			j = wi->wi_index & 0x3f;
			break;

		default:
			continue;
		};
		sbus_writel(0x5800 + j, &lx_krn->krn_type);
		sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
	}
	sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);

	val = sbus_readl(&lx_krn->krn_csr);
	val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2);
	sbus_writel(val, &lx_krn->krn_csr);

	spin_unlock_irqrestore(&par->lock, flags);
}

static void leo_init_wids(struct fb_info *info)
{
	struct fb_wid_item wi;
	struct fb_wid_list wl;

	wl.wl_count = 1;
	wl.wl_list = &wi;
	wi.wi_type = FB_WID_DBL_8;
	wi.wi_index = 0;
	wi.wi_values [0] = 0x2c0;
	leo_wid_put(info, &wl);
	wi.wi_index = 1;
	wi.wi_values [0] = 0x30;
	leo_wid_put(info, &wl);
	wi.wi_index = 2;
	wi.wi_values [0] = 0x20;
	leo_wid_put(info, &wl);
	wi.wi_type = FB_WID_DBL_24;
	wi.wi_index = 1;
	wi.wi_values [0] = 0x30;
	leo_wid_put(info, &wl);
}

static void leo_init_hw(struct fb_info *info)
{
	struct leo_par *par = (struct leo_par *) info->par;
	u32 val;

	val = sbus_readl(&par->ld_ss1->ss1_misc);
	val |= LEO_SS1_MISC_ENABLE;
	sbus_writel(val, &par->ld_ss1->ss1_misc);

	leo_switch_from_graph(info);
}

static void leo_fixup_var_rgb(struct fb_var_screeninfo *var)
{
	var->red.offset = 0;
	var->red.length = 8;
	var->green.offset = 8;
	var->green.length = 8;
	var->blue.offset = 16;
	var->blue.length = 8;
	var->transp.offset = 0;
	var->transp.length = 0;
}

static void leo_unmap_regs(struct platform_device *op, struct fb_info *info,
			   struct leo_par *par)
{
	if (par->lc_ss0_usr)
		of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000);
	if (par->ld_ss0)
		of_iounmap(&op->resource[0], par->ld_ss0, 0x1000);
	if (par->ld_ss1)
		of_iounmap(&op->resource[0], par->ld_ss1, 0x1000);
	if (par->lx_krn)
		of_iounmap(&op->resource[0], par->lx_krn, 0x1000);
	if (par->cursor)
		of_iounmap(&op->resource[0],
			   par->cursor, sizeof(struct leo_cursor));
	if (info->screen_base)
		of_iounmap(&op->resource[0], info->screen_base, 0x800000);
}

static int leo_probe(struct platform_device *op)
{
	struct device_node *dp = op->dev.of_node;
	struct fb_info *info;
	struct leo_par *par;
	int linebytes, err;

	info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);

	err = -ENOMEM;
	if (!info)
		goto out_err;
	par = info->par;

	spin_lock_init(&par->lock);

	info->fix.smem_start = op->resource[0].start;
	par->which_io = op->resource[0].flags & IORESOURCE_BITS;

	sbusfb_fill_var(&info->var, dp, 32);
	leo_fixup_var_rgb(&info->var);

	linebytes = of_getintprop_default(dp, "linebytes",
					  info->var.xres);
	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);

	par->lc_ss0_usr =
		of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
			   0x1000, "leolc ss0usr");
	par->ld_ss0 =
		of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
			   0x1000, "leold ss0");
	par->ld_ss1 =
		of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
			   0x1000, "leold ss1");
	par->lx_krn =
		of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
			   0x1000, "leolx krn");
	par->cursor =
		of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
			   sizeof(struct leo_cursor), "leolx cursor");
	info->screen_base =
		of_ioremap(&op->resource[0], LEO_OFF_SS0,
			   0x800000, "leo ram");
	if (!par->lc_ss0_usr ||
	    !par->ld_ss0 ||
	    !par->ld_ss1 ||
	    !par->lx_krn ||
	    !par->cursor ||
	    !info->screen_base)
		goto out_unmap_regs;

	info->flags = FBINFO_DEFAULT;
	info->fbops = &leo_ops;
	info->pseudo_palette = par->clut_data;

	leo_init_wids(info);
	leo_init_hw(info);

	leo_blank(FB_BLANK_UNBLANK, info);

	if (fb_alloc_cmap(&info->cmap, 256, 0))
		goto out_unmap_regs;

	leo_init_fix(info, dp);

	err = register_framebuffer(info);
	if (err < 0)
		goto out_dealloc_cmap;

	dev_set_drvdata(&op->dev, info);

	printk(KERN_INFO "%s: leo at %lx:%lx\n",
	       dp->full_name,
	       par->which_io, info->fix.smem_start);

	return 0;

out_dealloc_cmap:
	fb_dealloc_cmap(&info->cmap);

out_unmap_regs:
	leo_unmap_regs(op, info, par);
	framebuffer_release(info);

out_err:
	return err;
}

static int leo_remove(struct platform_device *op)
{
	struct fb_info *info = dev_get_drvdata(&op->dev);
	struct leo_par *par = info->par;

	unregister_framebuffer(info);
	fb_dealloc_cmap(&info->cmap);

	leo_unmap_regs(op, info, par);

	framebuffer_release(info);

	dev_set_drvdata(&op->dev, NULL);

	return 0;
}

static const struct of_device_id leo_match[] = {
	{
		.name = "SUNW,leo",
	},
	{},
};
MODULE_DEVICE_TABLE(of, leo_match);

static struct platform_driver leo_driver = {
	.driver = {
		.name = "leo",
		.owner = THIS_MODULE,
		.of_match_table = leo_match,
	},
	.probe		= leo_probe,
	.remove		= leo_remove,
};

static int __init leo_init(void)
{
	if (fb_get_options("leofb", NULL))
		return -ENODEV;

	return platform_driver_register(&leo_driver);
}

static void __exit leo_exit(void)
{
	platform_driver_unregister(&leo_driver);
}

module_init(leo_init);
module_exit(leo_exit);

MODULE_DESCRIPTION("framebuffer driver for LEO chipsets");
MODULE_AUTHOR("David S. Miller <[email protected]>");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/* leo.c: LEO frame buffer driver
1da177e4 LT	2	*
50312ce9	3	* Copyright (C) 2003, 2006 David S. Miller ([email protected])
1da177e4 LT	4	* Copyright (C) 1996-1999 Jakub Jelinek ([email protected])
	5	* Copyright (C) 1997 Michal Rehacek ([email protected])
	6	*
	7	* Driver layout based loosely on tgafb.c, see that file for credits.
	8	*/
	9
	10	#include <linux/module.h>
	11	#include <linux/kernel.h>
	12	#include <linux/errno.h>
	13	#include <linux/string.h>
1da177e4 LT	14	#include <linux/delay.h>
	15	#include <linux/init.h>
	16	#include <linux/fb.h>
	17	#include <linux/mm.h>
6cd5a86b	18	#include <linux/of_device.h>
738eca74	19	#include <linux/io.h>
1da177e4	20
1da177e4 LT	21	#include <asm/fbio.h>
	22
	23	#include "sbuslib.h"
	24
	25	/*
	26	* Local functions.
	27	*/
	28
	29	static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned,
	30	unsigned, struct fb_info *);
	31	static int leo_blank(int, struct fb_info *);
	32
216d526c	33	static int leo_mmap(struct fb_info , struct vm_area_struct );
67a6680d	34	static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
4dd95b63	35	static int leo_pan_display(struct fb_var_screeninfo , struct fb_info );
1da177e4 LT	36
	37	/*
	38	* Frame buffer operations
	39	*/
	40
	41	static struct fb_ops leo_ops = {
	42	.owner = THIS_MODULE,
	43	.fb_setcolreg = leo_setcolreg,
	44	.fb_blank = leo_blank,
4dd95b63	45	.fb_pan_display = leo_pan_display,
1da177e4 LT	46	.fb_fillrect = cfb_fillrect,
	47	.fb_copyarea = cfb_copyarea,
	48	.fb_imageblit = cfb_imageblit,
	49	.fb_mmap = leo_mmap,
	50	.fb_ioctl = leo_ioctl,
9ffb83bc CH	51	#ifdef CONFIG_COMPAT
	52	.fb_compat_ioctl = sbusfb_compat_ioctl,
	53	#endif
1da177e4 LT	54	};
	55
	56	#define LEO_OFF_LC_SS0_KRN 0x00200000UL
	57	#define LEO_OFF_LC_SS0_USR 0x00201000UL
	58	#define LEO_OFF_LC_SS1_KRN 0x01200000UL
	59	#define LEO_OFF_LC_SS1_USR 0x01201000UL
	60	#define LEO_OFF_LD_SS0 0x00400000UL
	61	#define LEO_OFF_LD_SS1 0x01400000UL
	62	#define LEO_OFF_LD_GBL 0x00401000UL
	63	#define LEO_OFF_LX_KRN 0x00600000UL
	64	#define LEO_OFF_LX_CURSOR 0x00601000UL
	65	#define LEO_OFF_SS0 0x00800000UL
	66	#define LEO_OFF_SS1 0x01800000UL
	67	#define LEO_OFF_UNK 0x00602000UL
	68	#define LEO_OFF_UNK2 0x00000000UL
	69
	70	#define LEO_CUR_ENABLE 0x00000080
	71	#define LEO_CUR_UPDATE 0x00000030
	72	#define LEO_CUR_PROGRESS 0x00000006
	73	#define LEO_CUR_UPDATECMAP 0x00000003
	74
	75	#define LEO_CUR_TYPE_MASK 0x00000000
	76	#define LEO_CUR_TYPE_IMAGE 0x00000020
	77	#define LEO_CUR_TYPE_CMAP 0x00000050
	78
	79	struct leo_cursor {
738eca74	80	u8 xxx0[16];
50312ce9 DM	81	u32 cur_type;
	82	u32 cur_misc;
	83	u32 cur_cursxy;
	84	u32 cur_data;
1da177e4 LT	85	};
	86
	87	#define LEO_KRN_TYPE_CLUT0 0x00001000
	88	#define LEO_KRN_TYPE_CLUT1 0x00001001
	89	#define LEO_KRN_TYPE_CLUT2 0x00001002
	90	#define LEO_KRN_TYPE_WID 0x00001003
	91	#define LEO_KRN_TYPE_UNK 0x00001006
	92	#define LEO_KRN_TYPE_VIDEO 0x00002003
	93	#define LEO_KRN_TYPE_CLUTDATA 0x00004000
	94	#define LEO_KRN_CSR_ENABLE 0x00000008
	95	#define LEO_KRN_CSR_PROGRESS 0x00000004
	96	#define LEO_KRN_CSR_UNK 0x00000002
	97	#define LEO_KRN_CSR_UNK2 0x00000001
	98
	99	struct leo_lx_krn {
50312ce9 DM	100	u32 krn_type;
	101	u32 krn_csr;
	102	u32 krn_value;
1da177e4 LT	103	};
	104
	105	struct leo_lc_ss0_krn {
50312ce9	106	u32 misc;
738eca74	107	u8 xxx0[0x800-4];
50312ce9	108	u32 rev;
1da177e4 LT	109	};
	110
	111	struct leo_lc_ss0_usr {
50312ce9 DM	112	u32 csr;
	113	u32 addrspace;
	114	u32 fontmsk;
	115	u32 fontt;
	116	u32 extent;
	117	u32 src;
738eca74	118	u32 dst;
50312ce9 DM	119	u32 copy;
50312ce9 DM	120	u32 fill;
1da177e4 LT	121	};
	122
	123	struct leo_lc_ss1_krn {
	124	u8 unknown;
	125	};
	126
	127	struct leo_lc_ss1_usr {
	128	u8 unknown;
	129	};
	130
738eca74 RR	131	struct leo_ld_ss0 {
738eca74 RR	132	u8 xxx0[0xe00];
50312ce9 DM	133	u32 csr;
	134	u32 wid;
	135	u32 wmask;
	136	u32 widclip;
	137	u32 vclipmin;
	138	u32 vclipmax;
	139	u32 pickmin; /* SS1 only */
	140	u32 pickmax; /* SS1 only */
	141	u32 fg;
	142	u32 bg;
	143	u32 src; /* Copy/Scroll (SS0 only) */
	144	u32 dst; /* Copy/Scroll/Fill (SS0 only) */
	145	u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
738eca74	146	u32 xxx1[3];
50312ce9 DM	147	u32 setsem; /* SS1 only */
	148	u32 clrsem; /* SS1 only */
	149	u32 clrpick; /* SS1 only */
	150	u32 clrdat; /* SS1 only */
	151	u32 alpha; /* SS1 only */
738eca74	152	u8 xxx2[0x2c];
50312ce9 DM	153	u32 winbg;
	154	u32 planemask;
	155	u32 rop;
	156	u32 z;
	157	u32 dczf; /* SS1 only */
	158	u32 dczb; /* SS1 only */
	159	u32 dcs; /* SS1 only */
	160	u32 dczs; /* SS1 only */
	161	u32 pickfb; /* SS1 only */
	162	u32 pickbb; /* SS1 only */
	163	u32 dcfc; /* SS1 only */
	164	u32 forcecol; /* SS1 only */
	165	u32 door[8]; /* SS1 only */
	166	u32 pick[5]; /* SS1 only */
1da177e4 LT	167	};
	168
	169	#define LEO_SS1_MISC_ENABLE 0x00000001
	170	#define LEO_SS1_MISC_STEREO 0x00000002
	171	struct leo_ld_ss1 {
50312ce9 DM	172	u8 xxx0[0xef4];
50312ce9 DM	173	u32 ss1_misc;
1da177e4 LT	174	};
	175
	176	struct leo_ld_gbl {
	177	u8 unknown;
	178	};
	179
	180	struct leo_par {
	181	spinlock_t lock;
	182	struct leo_lx_krn __iomem *lx_krn;
	183	struct leo_lc_ss0_usr __iomem *lc_ss0_usr;
	184	struct leo_ld_ss0 __iomem *ld_ss0;
	185	struct leo_ld_ss1 __iomem *ld_ss1;
	186	struct leo_cursor __iomem *cursor;
	187	u32 extent;
	188	u32 clut_data[256];
	189
	190	u32 flags;
	191	#define LEO_FLAG_BLANKED 0x00000001
	192
50312ce9	193	unsigned long which_io;
1da177e4 LT	194	};
	195
	196	static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
	197	{
	198	int i;
738eca74	199
1da177e4	200	for (i = 0;
738eca74 RR	201	(sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
738eca74 RR	202	i < 300000;
1da177e4	203	i++)
738eca74	204	udelay(1); /* Busy wait at most 0.3 sec */
1da177e4 LT	205	return;
	206	}
	207
4dd95b63 RR	208	static void leo_switch_from_graph(struct fb_info *info)
	209	{
	210	struct leo_par par = (struct leo_par ) info->par;
	211	struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
	212	struct leo_cursor __iomem *cursor = par->cursor;
	213	unsigned long flags;
	214	u32 val;
	215
	216	spin_lock_irqsave(&par->lock, flags);
	217
	218	par->extent = ((info->var.xres - 1) \|
	219	((info->var.yres - 1) << 16));
	220
	221	sbus_writel(0xffffffff, &ss->wid);
	222	sbus_writel(0xffff, &ss->wmask);
	223	sbus_writel(0, &ss->vclipmin);
	224	sbus_writel(par->extent, &ss->vclipmax);
	225	sbus_writel(0, &ss->fg);
	226	sbus_writel(0xff000000, &ss->planemask);
	227	sbus_writel(0x310850, &ss->rop);
	228	sbus_writel(0, &ss->widclip);
	229	sbus_writel((info->var.xres-1) \| ((info->var.yres-1) << 11),
	230	&par->lc_ss0_usr->extent);
	231	sbus_writel(4, &par->lc_ss0_usr->addrspace);
	232	sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
	233	sbus_writel(0, &par->lc_ss0_usr->fontt);
	234	do {
	235	val = sbus_readl(&par->lc_ss0_usr->csr);
	236	} while (val & 0x20000000);
	237
	238	/* setup screen buffer for cfb_* functions */
	239	sbus_writel(1, &ss->wid);
	240	sbus_writel(0x00ffffff, &ss->planemask);
	241	sbus_writel(0x310b90, &ss->rop);
	242	sbus_writel(0, &par->lc_ss0_usr->addrspace);
	243
	244	/* hide cursor */
	245	sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc);
	246
	247	spin_unlock_irqrestore(&par->lock, flags);
	248	}
	249
	250	static int leo_pan_display(struct fb_var_screeninfo var, struct fb_info info)
	251	{
	252	/* We just use this to catch switches out of
	253	* graphics mode.
	254	*/
	255	leo_switch_from_graph(info);
	256
	257	if (var->xoffset \|\| var->yoffset \|\| var->vmode)
	258	return -EINVAL;
	259	return 0;
	260	}
	261
1da177e4 LT	262	/**
	263	* leo_setcolreg - Optional function. Sets a color register.
	264	* @regno: boolean, 0 copy local, 1 get_user() function
	265	* @red: frame buffer colormap structure
	266	* @green: The green value which can be up to 16 bits wide
	267	* @blue: The blue value which can be up to 16 bits wide.
	268	* @transp: If supported the alpha value which can be up to 16 bits wide.
	269	* @info: frame buffer info structure
	270	*/
	271	static int leo_setcolreg(unsigned regno,
	272	unsigned red, unsigned green, unsigned blue,
	273	unsigned transp, struct fb_info *info)
	274	{
	275	struct leo_par par = (struct leo_par ) info->par;
738eca74	276	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
1da177e4 LT	277	unsigned long flags;
	278	u32 val;
	279	int i;
	280
	281	if (regno >= 256)
	282	return 1;
	283
	284	red >>= 8;
	285	green >>= 8;
	286	blue >>= 8;
	287
	288	par->clut_data[regno] = red \| (green << 8) \| (blue << 16);
	289
	290	spin_lock_irqsave(&par->lock, flags);
	291
	292	leo_wait(lx_krn);
	293
	294	sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type);
	295	for (i = 0; i < 256; i++)
	296	sbus_writel(par->clut_data[i], &lx_krn->krn_value);
	297	sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);
	298
	299	val = sbus_readl(&lx_krn->krn_csr);
	300	val \|= (LEO_KRN_CSR_UNK \| LEO_KRN_CSR_UNK2);
	301	sbus_writel(val, &lx_krn->krn_csr);
	302
	303	spin_unlock_irqrestore(&par->lock, flags);
	304
	305	return 0;
	306	}
	307
	308	/**
	309	* leo_blank - Optional function. Blanks the display.
	310	* @blank_mode: the blank mode we want.
	311	* @info: frame buffer structure that represents a single frame buffer
	312	*/
	313	static int leo_blank(int blank, struct fb_info *info)
	314	{
	315	struct leo_par par = (struct leo_par ) info->par;
	316	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	317	unsigned long flags;
	318	u32 val;
	319
	320	spin_lock_irqsave(&par->lock, flags);
	321
	322	switch (blank) {
	323	case FB_BLANK_UNBLANK: /* Unblanking */
	324	val = sbus_readl(&lx_krn->krn_csr);
	325	val \|= LEO_KRN_CSR_ENABLE;
	326	sbus_writel(val, &lx_krn->krn_csr);
	327	par->flags &= ~LEO_FLAG_BLANKED;
	328	break;
	329
	330	case FB_BLANK_NORMAL: /* Normal blanking */
	331	case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
	332	case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
	333	case FB_BLANK_POWERDOWN: /* Poweroff */
	334	val = sbus_readl(&lx_krn->krn_csr);
	335	val &= ~LEO_KRN_CSR_ENABLE;
	336	sbus_writel(val, &lx_krn->krn_csr);
	337	par->flags \|= LEO_FLAG_BLANKED;
	338	break;
	339	}
	340
341	spin_unlock_irqrestore(&par->lock, flags);
342
343	return 0;
344	}
345
346	static struct sbus_mmap_map leo_mmap_map[] = {
347	{
348	.voff = LEO_SS0_MAP,
349	.poff = LEO_OFF_SS0,
350	.size = 0x800000
351	},
352	{
353	.voff = LEO_LC_SS0_USR_MAP,
354	.poff = LEO_OFF_LC_SS0_USR,
355	.size = 0x1000
356	},
357	{
358	.voff = LEO_LD_SS0_MAP,
359	.poff = LEO_OFF_LD_SS0,
360	.size = 0x1000
361	},
362	{
363	.voff = LEO_LX_CURSOR_MAP,
364	.poff = LEO_OFF_LX_CURSOR,
365	.size = 0x1000
366	},
367	{
368	.voff = LEO_SS1_MAP,
369	.poff = LEO_OFF_SS1,
370	.size = 0x800000
371	},
372	{
373	.voff = LEO_LC_SS1_USR_MAP,
374	.poff = LEO_OFF_LC_SS1_USR,
375	.size = 0x1000
376	},
377	{
378	.voff = LEO_LD_SS1_MAP,
379	.poff = LEO_OFF_LD_SS1,
380	.size = 0x1000
381	},
382	{
383	.voff = LEO_UNK_MAP,
384	.poff = LEO_OFF_UNK,
385	.size = 0x1000
386	},
387	{
388	.voff = LEO_LX_KRN_MAP,
389	.poff = LEO_OFF_LX_KRN,
390	.size = 0x1000
391	},
392	{
393	.voff = LEO_LC_SS0_KRN_MAP,
394	.poff = LEO_OFF_LC_SS0_KRN,
395	.size = 0x1000
396	},
397	{
398	.voff = LEO_LC_SS1_KRN_MAP,
399	.poff = LEO_OFF_LC_SS1_KRN,
400	.size = 0x1000
401	},
402	{
403	.voff = LEO_LD_GBL_MAP,
404	.poff = LEO_OFF_LD_GBL,
405	.size = 0x1000
406	},
407	{
408	.voff = LEO_UNK2_MAP,
409	.poff = LEO_OFF_UNK2,
410	.size = 0x100000
411	},
412	{ .size = 0 }
413	};
414
216d526c	415	static int leo_mmap(struct fb_info info, struct vm_area_struct vma)
1da177e4 LT	416	{
	417	struct leo_par par = (struct leo_par )info->par;
	418
	419	return sbusfb_mmap_helper(leo_mmap_map,
8803f7af	420	info->fix.smem_start, info->fix.smem_len,
50312ce9	421	par->which_io, vma);
1da177e4 LT	422	}
1da177e4 LT	423
67a6680d	424	static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
1da177e4	425	{
1da177e4	426	return sbusfb_ioctl_helper(cmd, arg, info,
8803f7af	427	FBTYPE_SUNLEO, 32, info->fix.smem_len);
1da177e4 LT	428	}
	429
	430	/*
	431	* Initialisation
	432	*/
	433
	434	static void
50312ce9	435	leo_init_fix(struct fb_info info, struct device_node dp)
1da177e4	436	{
50312ce9	437	strlcpy(info->fix.id, dp->name, sizeof(info->fix.id));
1da177e4 LT	438
	439	info->fix.type = FB_TYPE_PACKED_PIXELS;
	440	info->fix.visual = FB_VISUAL_TRUECOLOR;
	441
	442	info->fix.line_length = 8192;
	443
	444	info->fix.accel = FB_ACCEL_SUN_LEO;
	445	}
	446
	447	static void leo_wid_put(struct fb_info info, struct fb_wid_list wl)
	448	{
	449	struct leo_par par = (struct leo_par ) info->par;
	450	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	451	struct fb_wid_item *wi;
	452	unsigned long flags;
	453	u32 val;
	454	int i, j;
	455
	456	spin_lock_irqsave(&par->lock, flags);
	457
	458	leo_wait(lx_krn);
	459
	460	for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
738eca74	461	switch (wi->wi_type) {
1da177e4 LT	462	case FB_WID_DBL_8:
	463	j = (wi->wi_index & 0xf) + 0x40;
	464	break;
	465
	466	case FB_WID_DBL_24:
	467	j = wi->wi_index & 0x3f;
	468	break;
	469
	470	default:
	471	continue;
	472	};
	473	sbus_writel(0x5800 + j, &lx_krn->krn_type);
	474	sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
	475	}
	476	sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);
	477
	478	val = sbus_readl(&lx_krn->krn_csr);
	479	val \|= (LEO_KRN_CSR_UNK \| LEO_KRN_CSR_UNK2);
	480	sbus_writel(val, &lx_krn->krn_csr);
	481
	482	spin_unlock_irqrestore(&par->lock, flags);
	483	}
	484
	485	static void leo_init_wids(struct fb_info *info)
	486	{
	487	struct fb_wid_item wi;
	488	struct fb_wid_list wl;
	489
	490	wl.wl_count = 1;
	491	wl.wl_list = &wi;
	492	wi.wi_type = FB_WID_DBL_8;
	493	wi.wi_index = 0;
	494	wi.wi_values [0] = 0x2c0;
	495	leo_wid_put(info, &wl);
	496	wi.wi_index = 1;
	497	wi.wi_values [0] = 0x30;
	498	leo_wid_put(info, &wl);
	499	wi.wi_index = 2;
	500	wi.wi_values [0] = 0x20;
	501	leo_wid_put(info, &wl);
	502	wi.wi_type = FB_WID_DBL_24;
	503	wi.wi_index = 1;
	504	wi.wi_values [0] = 0x30;
	505	leo_wid_put(info, &wl);
1da177e4 LT	506	}
1da177e4 LT	507
1da177e4 LT	508	static void leo_init_hw(struct fb_info *info)
	509	{
	510	struct leo_par par = (struct leo_par ) info->par;
	511	u32 val;
	512
	513	val = sbus_readl(&par->ld_ss1->ss1_misc);
	514	val \|= LEO_SS1_MISC_ENABLE;
	515	sbus_writel(val, &par->ld_ss1->ss1_misc);
	516
	517	leo_switch_from_graph(info);
	518	}
	519
	520	static void leo_fixup_var_rgb(struct fb_var_screeninfo *var)
	521	{
	522	var->red.offset = 0;
	523	var->red.length = 8;
	524	var->green.offset = 8;
	525	var->green.length = 8;
	526	var->blue.offset = 16;
	527	var->blue.length = 8;
	528	var->transp.offset = 0;
	529	var->transp.length = 0;
	530	}
	531
2dc11581	532	static void leo_unmap_regs(struct platform_device op, struct fb_info info,
c7f439b9	533	struct leo_par *par)
1da177e4	534	{
c7f439b9 DM	535	if (par->lc_ss0_usr)
	536	of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000);
	537	if (par->ld_ss0)
	538	of_iounmap(&op->resource[0], par->ld_ss0, 0x1000);
	539	if (par->ld_ss1)
	540	of_iounmap(&op->resource[0], par->ld_ss1, 0x1000);
	541	if (par->lx_krn)
	542	of_iounmap(&op->resource[0], par->lx_krn, 0x1000);
	543	if (par->cursor)
e3a411a3	544	of_iounmap(&op->resource[0],
c7f439b9 DM	545	par->cursor, sizeof(struct leo_cursor));
	546	if (info->screen_base)
	547	of_iounmap(&op->resource[0], info->screen_base, 0x800000);
50312ce9	548	}
1da177e4	549
48c68c4f	550	static int leo_probe(struct platform_device *op)
50312ce9	551	{
d4b8b2c2	552	struct device_node *dp = op->dev.of_node;
c7f439b9 DM	553	struct fb_info *info;
c7f439b9 DM	554	struct leo_par *par;
50312ce9	555	int linebytes, err;
1da177e4	556
c7f439b9 DM	557	info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);
	558
	559	err = -ENOMEM;
	560	if (!info)
	561	goto out_err;
	562	par = info->par;
1da177e4	563
c7f439b9	564	spin_lock_init(&par->lock);
1da177e4	565
8803f7af	566	info->fix.smem_start = op->resource[0].start;
c7f439b9	567	par->which_io = op->resource[0].flags & IORESOURCE_BITS;
1da177e4	568
6cd5a86b	569	sbusfb_fill_var(&info->var, dp, 32);
c7f439b9	570	leo_fixup_var_rgb(&info->var);
1da177e4	571
50312ce9	572	linebytes = of_getintprop_default(dp, "linebytes",
c7f439b9	573	info->var.xres);
8803f7af	574	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
1da177e4	575
c7f439b9	576	par->lc_ss0_usr =
50312ce9 DM	577	of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
50312ce9 DM	578	0x1000, "leolc ss0usr");
c7f439b9	579	par->ld_ss0 =
50312ce9 DM	580	of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
50312ce9 DM	581	0x1000, "leold ss0");
c7f439b9	582	par->ld_ss1 =
50312ce9 DM	583	of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
50312ce9 DM	584	0x1000, "leold ss1");
c7f439b9	585	par->lx_krn =
50312ce9 DM	586	of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
50312ce9 DM	587	0x1000, "leolx krn");
c7f439b9	588	par->cursor =
50312ce9 DM	589	of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
50312ce9 DM	590	sizeof(struct leo_cursor), "leolx cursor");
c7f439b9	591	info->screen_base =
50312ce9 DM	592	of_ioremap(&op->resource[0], LEO_OFF_SS0,
50312ce9 DM	593	0x800000, "leo ram");
c7f439b9 DM	594	if (!par->lc_ss0_usr \|\|
	595	!par->ld_ss0 \|\|
	596	!par->ld_ss1 \|\|
	597	!par->lx_krn \|\|
	598	!par->cursor \|\|
	599	!info->screen_base)
	600	goto out_unmap_regs;
1da177e4	601
738eca74	602	info->flags = FBINFO_DEFAULT;
c7f439b9	603	info->fbops = &leo_ops;
738eca74	604	info->pseudo_palette = par->clut_data;
1da177e4	605
c7f439b9 DM	606	leo_init_wids(info);
c7f439b9 DM	607	leo_init_hw(info);
1da177e4	608
59f7137a	609	leo_blank(FB_BLANK_UNBLANK, info);
1da177e4	610
c7f439b9 DM	611	if (fb_alloc_cmap(&info->cmap, 256, 0))
c7f439b9 DM	612	goto out_unmap_regs;
1da177e4	613
c7f439b9	614	leo_init_fix(info, dp);
1da177e4	615
c7f439b9 DM	616	err = register_framebuffer(info);
	617	if (err < 0)
	618	goto out_dealloc_cmap;
1da177e4	619
c7f439b9	620	dev_set_drvdata(&op->dev, info);
50312ce9	621
194f1a68	622	printk(KERN_INFO "%s: leo at %lx:%lx\n",
50312ce9	623	dp->full_name,
8803f7af	624	par->which_io, info->fix.smem_start);
1da177e4	625
50312ce9	626	return 0;
1da177e4	627
c7f439b9 DM	628	out_dealloc_cmap:
	629	fb_dealloc_cmap(&info->cmap);
	630
	631	out_unmap_regs:
	632	leo_unmap_regs(op, info, par);
	633	framebuffer_release(info);
1da177e4	634
c7f439b9 DM	635	out_err:
c7f439b9 DM	636	return err;
50312ce9	637	}
1da177e4	638
48c68c4f	639	static int leo_remove(struct platform_device *op)
50312ce9	640	{
c7f439b9 DM	641	struct fb_info *info = dev_get_drvdata(&op->dev);
c7f439b9 DM	642	struct leo_par *par = info->par;
50312ce9	643
c7f439b9 DM	644	unregister_framebuffer(info);
c7f439b9 DM	645	fb_dealloc_cmap(&info->cmap);
50312ce9	646
c7f439b9	647	leo_unmap_regs(op, info, par);
50312ce9	648
c7f439b9	649	framebuffer_release(info);
50312ce9	650
e3a411a3	651	dev_set_drvdata(&op->dev, NULL);
1da177e4 LT	652
	653	return 0;
	654	}
	655
fd098316	656	static const struct of_device_id leo_match[] = {
50312ce9	657	{
738eca74	658	.name = "SUNW,leo",
50312ce9 DM	659	},
	660	{},
	661	};
	662	MODULE_DEVICE_TABLE(of, leo_match);
	663
28541d0f	664	static struct platform_driver leo_driver = {
4018294b GL	665	.driver = {
	666	.name = "leo",
	667	.owner = THIS_MODULE,
	668	.of_match_table = leo_match,
	669	},
50312ce9	670	.probe = leo_probe,
48c68c4f	671	.remove = leo_remove,
50312ce9	672	};
1da177e4	673
50312ce9 DM	674	static int __init leo_init(void)
	675	{
	676	if (fb_get_options("leofb", NULL))
	677	return -ENODEV;
1da177e4	678
28541d0f	679	return platform_driver_register(&leo_driver);
1da177e4 LT	680	}
1da177e4 LT	681
50312ce9	682	static void __exit leo_exit(void)
1da177e4	683	{
28541d0f	684	platform_driver_unregister(&leo_driver);
1da177e4 LT	685	}
	686
	687	module_init(leo_init);
1da177e4	688	module_exit(leo_exit);
1da177e4 LT	689
1da177e4 LT	690	MODULE_DESCRIPTION("framebuffer driver for LEO chipsets");
50312ce9 DM	691	MODULE_AUTHOR("David S. Miller <[email protected]>");
50312ce9 DM	692	MODULE_VERSION("2.0");
1da177e4	693	MODULE_LICENSE("GPL");