[linux-2.6-block.git] / drivers / video / fbdev / leo.c

// SPDX-License-Identifier: GPL-2.0-only
/* leo.c: LEO frame buffer driver
 *
 * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
 * Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz)
 * Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz)
 *
 * 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)
{
	snprintf(info->fix.id, sizeof(info->fix.id), "%pOFn", dp);

	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 "%pOF: leo at %lx:%lx\n",
	       dp,
	       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);

	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",
		.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 <davem@davemloft.net>");
MODULE_VERSION("2.0");
MODULE_LICENSE("GPL");
Commit	Line	Data
09c434b8	1	// SPDX-License-Identifier: GPL-2.0-only
1da177e4 LT	2	/* leo.c: LEO frame buffer driver
1da177e4 LT	3	*
50312ce9	4	* Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
1da177e4 LT	5	* Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz)
	6	* Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz)
	7	*
	8	* Driver layout based loosely on tgafb.c, see that file for credits.
	9	*/
	10
	11	#include <linux/module.h>
	12	#include <linux/kernel.h>
	13	#include <linux/errno.h>
	14	#include <linux/string.h>
1da177e4 LT	15	#include <linux/delay.h>
	16	#include <linux/init.h>
	17	#include <linux/fb.h>
	18	#include <linux/mm.h>
6cd5a86b	19	#include <linux/of_device.h>
738eca74	20	#include <linux/io.h>
1da177e4	21
1da177e4 LT	22	#include <asm/fbio.h>
	23
	24	#include "sbuslib.h"
	25
	26	/*
	27	* Local functions.
	28	*/
	29
	30	static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned,
	31	unsigned, struct fb_info *);
	32	static int leo_blank(int, struct fb_info *);
	33
216d526c	34	static int leo_mmap(struct fb_info , struct vm_area_struct );
67a6680d	35	static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
4dd95b63	36	static int leo_pan_display(struct fb_var_screeninfo , struct fb_info );
1da177e4 LT	37
	38	/*
	39	* Frame buffer operations
	40	*/
	41
	42	static struct fb_ops leo_ops = {
	43	.owner = THIS_MODULE,
	44	.fb_setcolreg = leo_setcolreg,
	45	.fb_blank = leo_blank,
4dd95b63	46	.fb_pan_display = leo_pan_display,
1da177e4 LT	47	.fb_fillrect = cfb_fillrect,
	48	.fb_copyarea = cfb_copyarea,
	49	.fb_imageblit = cfb_imageblit,
	50	.fb_mmap = leo_mmap,
	51	.fb_ioctl = leo_ioctl,
9ffb83bc CH	52	#ifdef CONFIG_COMPAT
	53	.fb_compat_ioctl = sbusfb_compat_ioctl,
	54	#endif
1da177e4 LT	55	};
	56
	57	#define LEO_OFF_LC_SS0_KRN 0x00200000UL
	58	#define LEO_OFF_LC_SS0_USR 0x00201000UL
	59	#define LEO_OFF_LC_SS1_KRN 0x01200000UL
	60	#define LEO_OFF_LC_SS1_USR 0x01201000UL
	61	#define LEO_OFF_LD_SS0 0x00400000UL
	62	#define LEO_OFF_LD_SS1 0x01400000UL
	63	#define LEO_OFF_LD_GBL 0x00401000UL
	64	#define LEO_OFF_LX_KRN 0x00600000UL
	65	#define LEO_OFF_LX_CURSOR 0x00601000UL
	66	#define LEO_OFF_SS0 0x00800000UL
	67	#define LEO_OFF_SS1 0x01800000UL
	68	#define LEO_OFF_UNK 0x00602000UL
	69	#define LEO_OFF_UNK2 0x00000000UL
	70
	71	#define LEO_CUR_ENABLE 0x00000080
	72	#define LEO_CUR_UPDATE 0x00000030
	73	#define LEO_CUR_PROGRESS 0x00000006
	74	#define LEO_CUR_UPDATECMAP 0x00000003
	75
	76	#define LEO_CUR_TYPE_MASK 0x00000000
	77	#define LEO_CUR_TYPE_IMAGE 0x00000020
	78	#define LEO_CUR_TYPE_CMAP 0x00000050
	79
	80	struct leo_cursor {
738eca74	81	u8 xxx0[16];
50312ce9 DM	82	u32 cur_type;
	83	u32 cur_misc;
	84	u32 cur_cursxy;
	85	u32 cur_data;
1da177e4 LT	86	};
	87
	88	#define LEO_KRN_TYPE_CLUT0 0x00001000
	89	#define LEO_KRN_TYPE_CLUT1 0x00001001
	90	#define LEO_KRN_TYPE_CLUT2 0x00001002
	91	#define LEO_KRN_TYPE_WID 0x00001003
	92	#define LEO_KRN_TYPE_UNK 0x00001006
	93	#define LEO_KRN_TYPE_VIDEO 0x00002003
	94	#define LEO_KRN_TYPE_CLUTDATA 0x00004000
	95	#define LEO_KRN_CSR_ENABLE 0x00000008
	96	#define LEO_KRN_CSR_PROGRESS 0x00000004
	97	#define LEO_KRN_CSR_UNK 0x00000002
	98	#define LEO_KRN_CSR_UNK2 0x00000001
	99
	100	struct leo_lx_krn {
50312ce9 DM	101	u32 krn_type;
	102	u32 krn_csr;
	103	u32 krn_value;
1da177e4 LT	104	};
	105
	106	struct leo_lc_ss0_krn {
50312ce9	107	u32 misc;
738eca74	108	u8 xxx0[0x800-4];
50312ce9	109	u32 rev;
1da177e4 LT	110	};
	111
	112	struct leo_lc_ss0_usr {
50312ce9 DM	113	u32 csr;
	114	u32 addrspace;
	115	u32 fontmsk;
	116	u32 fontt;
	117	u32 extent;
	118	u32 src;
738eca74	119	u32 dst;
50312ce9 DM	120	u32 copy;
50312ce9 DM	121	u32 fill;
1da177e4 LT	122	};
	123
	124	struct leo_lc_ss1_krn {
	125	u8 unknown;
	126	};
	127
	128	struct leo_lc_ss1_usr {
	129	u8 unknown;
	130	};
	131
738eca74 RR	132	struct leo_ld_ss0 {
738eca74 RR	133	u8 xxx0[0xe00];
50312ce9 DM	134	u32 csr;
	135	u32 wid;
	136	u32 wmask;
	137	u32 widclip;
	138	u32 vclipmin;
	139	u32 vclipmax;
	140	u32 pickmin; /* SS1 only */
	141	u32 pickmax; /* SS1 only */
	142	u32 fg;
	143	u32 bg;
	144	u32 src; /* Copy/Scroll (SS0 only) */
	145	u32 dst; /* Copy/Scroll/Fill (SS0 only) */
	146	u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
738eca74	147	u32 xxx1[3];
50312ce9 DM	148	u32 setsem; /* SS1 only */
	149	u32 clrsem; /* SS1 only */
	150	u32 clrpick; /* SS1 only */
	151	u32 clrdat; /* SS1 only */
	152	u32 alpha; /* SS1 only */
738eca74	153	u8 xxx2[0x2c];
50312ce9 DM	154	u32 winbg;
	155	u32 planemask;
	156	u32 rop;
	157	u32 z;
	158	u32 dczf; /* SS1 only */
	159	u32 dczb; /* SS1 only */
	160	u32 dcs; /* SS1 only */
	161	u32 dczs; /* SS1 only */
	162	u32 pickfb; /* SS1 only */
	163	u32 pickbb; /* SS1 only */
	164	u32 dcfc; /* SS1 only */
	165	u32 forcecol; /* SS1 only */
	166	u32 door[8]; /* SS1 only */
	167	u32 pick[5]; /* SS1 only */
1da177e4 LT	168	};
	169
	170	#define LEO_SS1_MISC_ENABLE 0x00000001
	171	#define LEO_SS1_MISC_STEREO 0x00000002
	172	struct leo_ld_ss1 {
50312ce9 DM	173	u8 xxx0[0xef4];
50312ce9 DM	174	u32 ss1_misc;
1da177e4 LT	175	};
	176
	177	struct leo_ld_gbl {
	178	u8 unknown;
	179	};
	180
	181	struct leo_par {
	182	spinlock_t lock;
	183	struct leo_lx_krn __iomem *lx_krn;
	184	struct leo_lc_ss0_usr __iomem *lc_ss0_usr;
	185	struct leo_ld_ss0 __iomem *ld_ss0;
	186	struct leo_ld_ss1 __iomem *ld_ss1;
	187	struct leo_cursor __iomem *cursor;
	188	u32 extent;
	189	u32 clut_data[256];
	190
	191	u32 flags;
	192	#define LEO_FLAG_BLANKED 0x00000001
	193
50312ce9	194	unsigned long which_io;
1da177e4 LT	195	};
	196
	197	static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
	198	{
	199	int i;
738eca74	200
1da177e4	201	for (i = 0;
738eca74 RR	202	(sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
738eca74 RR	203	i < 300000;
1da177e4	204	i++)
738eca74	205	udelay(1); /* Busy wait at most 0.3 sec */
1da177e4 LT	206	return;
	207	}
	208
4dd95b63 RR	209	static void leo_switch_from_graph(struct fb_info *info)
	210	{
	211	struct leo_par par = (struct leo_par ) info->par;
	212	struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
	213	struct leo_cursor __iomem *cursor = par->cursor;
	214	unsigned long flags;
	215	u32 val;
	216
	217	spin_lock_irqsave(&par->lock, flags);
	218
	219	par->extent = ((info->var.xres - 1) \|
	220	((info->var.yres - 1) << 16));
	221
	222	sbus_writel(0xffffffff, &ss->wid);
	223	sbus_writel(0xffff, &ss->wmask);
	224	sbus_writel(0, &ss->vclipmin);
	225	sbus_writel(par->extent, &ss->vclipmax);
	226	sbus_writel(0, &ss->fg);
	227	sbus_writel(0xff000000, &ss->planemask);
	228	sbus_writel(0x310850, &ss->rop);
	229	sbus_writel(0, &ss->widclip);
	230	sbus_writel((info->var.xres-1) \| ((info->var.yres-1) << 11),
	231	&par->lc_ss0_usr->extent);
	232	sbus_writel(4, &par->lc_ss0_usr->addrspace);
	233	sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
	234	sbus_writel(0, &par->lc_ss0_usr->fontt);
	235	do {
	236	val = sbus_readl(&par->lc_ss0_usr->csr);
	237	} while (val & 0x20000000);
	238
	239	/* setup screen buffer for cfb_* functions */
	240	sbus_writel(1, &ss->wid);
	241	sbus_writel(0x00ffffff, &ss->planemask);
	242	sbus_writel(0x310b90, &ss->rop);
	243	sbus_writel(0, &par->lc_ss0_usr->addrspace);
	244
	245	/* hide cursor */
	246	sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc);
	247
	248	spin_unlock_irqrestore(&par->lock, flags);
	249	}
	250
	251	static int leo_pan_display(struct fb_var_screeninfo var, struct fb_info info)
	252	{
	253	/* We just use this to catch switches out of
	254	* graphics mode.
	255	*/
	256	leo_switch_from_graph(info);
	257
	258	if (var->xoffset \|\| var->yoffset \|\| var->vmode)
	259	return -EINVAL;
	260	return 0;
	261	}
	262
1da177e4 LT	263	/**
	264	* leo_setcolreg - Optional function. Sets a color register.
	265	* @regno: boolean, 0 copy local, 1 get_user() function
	266	* @red: frame buffer colormap structure
	267	* @green: The green value which can be up to 16 bits wide
	268	* @blue: The blue value which can be up to 16 bits wide.
	269	* @transp: If supported the alpha value which can be up to 16 bits wide.
	270	* @info: frame buffer info structure
	271	*/
	272	static int leo_setcolreg(unsigned regno,
	273	unsigned red, unsigned green, unsigned blue,
	274	unsigned transp, struct fb_info *info)
	275	{
	276	struct leo_par par = (struct leo_par ) info->par;
738eca74	277	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
1da177e4 LT	278	unsigned long flags;
	279	u32 val;
	280	int i;
	281
	282	if (regno >= 256)
	283	return 1;
	284
	285	red >>= 8;
	286	green >>= 8;
	287	blue >>= 8;
	288
	289	par->clut_data[regno] = red \| (green << 8) \| (blue << 16);
	290
	291	spin_lock_irqsave(&par->lock, flags);
	292
	293	leo_wait(lx_krn);
	294
	295	sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type);
	296	for (i = 0; i < 256; i++)
	297	sbus_writel(par->clut_data[i], &lx_krn->krn_value);
	298	sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);
	299
	300	val = sbus_readl(&lx_krn->krn_csr);
	301	val \|= (LEO_KRN_CSR_UNK \| LEO_KRN_CSR_UNK2);
	302	sbus_writel(val, &lx_krn->krn_csr);
	303
	304	spin_unlock_irqrestore(&par->lock, flags);
	305
	306	return 0;
	307	}
	308
	309	/**
	310	* leo_blank - Optional function. Blanks the display.
	311	* @blank_mode: the blank mode we want.
	312	* @info: frame buffer structure that represents a single frame buffer
	313	*/
	314	static int leo_blank(int blank, struct fb_info *info)
	315	{
	316	struct leo_par par = (struct leo_par ) info->par;
	317	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	318	unsigned long flags;
	319	u32 val;
	320
	321	spin_lock_irqsave(&par->lock, flags);
	322
	323	switch (blank) {
	324	case FB_BLANK_UNBLANK: /* Unblanking */
	325	val = sbus_readl(&lx_krn->krn_csr);
	326	val \|= LEO_KRN_CSR_ENABLE;
	327	sbus_writel(val, &lx_krn->krn_csr);
	328	par->flags &= ~LEO_FLAG_BLANKED;
	329	break;
	330
	331	case FB_BLANK_NORMAL: /* Normal blanking */
	332	case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
	333	case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
	334	case FB_BLANK_POWERDOWN: /* Poweroff */
	335	val = sbus_readl(&lx_krn->krn_csr);
	336	val &= ~LEO_KRN_CSR_ENABLE;
	337	sbus_writel(val, &lx_krn->krn_csr);
	338	par->flags \|= LEO_FLAG_BLANKED;
	339	break;
	340	}
	341
342	spin_unlock_irqrestore(&par->lock, flags);
343
344	return 0;
345	}
346
347	static struct sbus_mmap_map leo_mmap_map[] = {
348	{
349	.voff = LEO_SS0_MAP,
350	.poff = LEO_OFF_SS0,
351	.size = 0x800000
352	},
353	{
354	.voff = LEO_LC_SS0_USR_MAP,
355	.poff = LEO_OFF_LC_SS0_USR,
356	.size = 0x1000
357	},
358	{
359	.voff = LEO_LD_SS0_MAP,
360	.poff = LEO_OFF_LD_SS0,
361	.size = 0x1000
362	},
363	{
364	.voff = LEO_LX_CURSOR_MAP,
365	.poff = LEO_OFF_LX_CURSOR,
366	.size = 0x1000
367	},
368	{
369	.voff = LEO_SS1_MAP,
370	.poff = LEO_OFF_SS1,
371	.size = 0x800000
372	},
373	{
374	.voff = LEO_LC_SS1_USR_MAP,
375	.poff = LEO_OFF_LC_SS1_USR,
376	.size = 0x1000
377	},
378	{
379	.voff = LEO_LD_SS1_MAP,
380	.poff = LEO_OFF_LD_SS1,
381	.size = 0x1000
382	},
383	{
384	.voff = LEO_UNK_MAP,
385	.poff = LEO_OFF_UNK,
386	.size = 0x1000
387	},
388	{
389	.voff = LEO_LX_KRN_MAP,
390	.poff = LEO_OFF_LX_KRN,
391	.size = 0x1000
392	},
393	{
394	.voff = LEO_LC_SS0_KRN_MAP,
395	.poff = LEO_OFF_LC_SS0_KRN,
396	.size = 0x1000
397	},
398	{
399	.voff = LEO_LC_SS1_KRN_MAP,
400	.poff = LEO_OFF_LC_SS1_KRN,
401	.size = 0x1000
402	},
403	{
404	.voff = LEO_LD_GBL_MAP,
405	.poff = LEO_OFF_LD_GBL,
406	.size = 0x1000
407	},
408	{
409	.voff = LEO_UNK2_MAP,
410	.poff = LEO_OFF_UNK2,
411	.size = 0x100000
412	},
413	{ .size = 0 }
414	};
415
216d526c	416	static int leo_mmap(struct fb_info info, struct vm_area_struct vma)
1da177e4 LT	417	{
	418	struct leo_par par = (struct leo_par )info->par;
	419
	420	return sbusfb_mmap_helper(leo_mmap_map,
8803f7af	421	info->fix.smem_start, info->fix.smem_len,
50312ce9	422	par->which_io, vma);
1da177e4 LT	423	}
1da177e4 LT	424
67a6680d	425	static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
1da177e4	426	{
1da177e4	427	return sbusfb_ioctl_helper(cmd, arg, info,
8803f7af	428	FBTYPE_SUNLEO, 32, info->fix.smem_len);
1da177e4 LT	429	}
	430
	431	/*
	432	* Initialisation
	433	*/
	434
	435	static void
50312ce9	436	leo_init_fix(struct fb_info info, struct device_node dp)
1da177e4	437	{
5c63e407	438	snprintf(info->fix.id, sizeof(info->fix.id), "%pOFn", dp);
1da177e4 LT	439
	440	info->fix.type = FB_TYPE_PACKED_PIXELS;
	441	info->fix.visual = FB_VISUAL_TRUECOLOR;
	442
	443	info->fix.line_length = 8192;
	444
	445	info->fix.accel = FB_ACCEL_SUN_LEO;
	446	}
	447
	448	static void leo_wid_put(struct fb_info info, struct fb_wid_list wl)
	449	{
	450	struct leo_par par = (struct leo_par ) info->par;
	451	struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
	452	struct fb_wid_item *wi;
	453	unsigned long flags;
	454	u32 val;
	455	int i, j;
	456
	457	spin_lock_irqsave(&par->lock, flags);
	458
	459	leo_wait(lx_krn);
	460
	461	for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
738eca74	462	switch (wi->wi_type) {
1da177e4 LT	463	case FB_WID_DBL_8:
	464	j = (wi->wi_index & 0xf) + 0x40;
	465	break;
	466
	467	case FB_WID_DBL_24:
	468	j = wi->wi_index & 0x3f;
	469	break;
	470
	471	default:
	472	continue;
cf6ac4ce	473	}
1da177e4 LT	474	sbus_writel(0x5800 + j, &lx_krn->krn_type);
	475	sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
	476	}
	477	sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);
	478
	479	val = sbus_readl(&lx_krn->krn_csr);
	480	val \|= (LEO_KRN_CSR_UNK \| LEO_KRN_CSR_UNK2);
	481	sbus_writel(val, &lx_krn->krn_csr);
	482
	483	spin_unlock_irqrestore(&par->lock, flags);
	484	}
	485
	486	static void leo_init_wids(struct fb_info *info)
	487	{
	488	struct fb_wid_item wi;
	489	struct fb_wid_list wl;
	490
	491	wl.wl_count = 1;
	492	wl.wl_list = &wi;
	493	wi.wi_type = FB_WID_DBL_8;
	494	wi.wi_index = 0;
	495	wi.wi_values [0] = 0x2c0;
	496	leo_wid_put(info, &wl);
	497	wi.wi_index = 1;
	498	wi.wi_values [0] = 0x30;
	499	leo_wid_put(info, &wl);
	500	wi.wi_index = 2;
	501	wi.wi_values [0] = 0x20;
	502	leo_wid_put(info, &wl);
	503	wi.wi_type = FB_WID_DBL_24;
	504	wi.wi_index = 1;
	505	wi.wi_values [0] = 0x30;
	506	leo_wid_put(info, &wl);
1da177e4 LT	507	}
1da177e4 LT	508
1da177e4 LT	509	static void leo_init_hw(struct fb_info *info)
	510	{
	511	struct leo_par par = (struct leo_par ) info->par;
	512	u32 val;
	513
	514	val = sbus_readl(&par->ld_ss1->ss1_misc);
	515	val \|= LEO_SS1_MISC_ENABLE;
	516	sbus_writel(val, &par->ld_ss1->ss1_misc);
	517
	518	leo_switch_from_graph(info);
	519	}
	520
	521	static void leo_fixup_var_rgb(struct fb_var_screeninfo *var)
	522	{
	523	var->red.offset = 0;
	524	var->red.length = 8;
	525	var->green.offset = 8;
	526	var->green.length = 8;
	527	var->blue.offset = 16;
	528	var->blue.length = 8;
	529	var->transp.offset = 0;
	530	var->transp.length = 0;
	531	}
	532
2dc11581	533	static void leo_unmap_regs(struct platform_device op, struct fb_info info,
c7f439b9	534	struct leo_par *par)
1da177e4	535	{
c7f439b9 DM	536	if (par->lc_ss0_usr)
	537	of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000);
	538	if (par->ld_ss0)
	539	of_iounmap(&op->resource[0], par->ld_ss0, 0x1000);
	540	if (par->ld_ss1)
	541	of_iounmap(&op->resource[0], par->ld_ss1, 0x1000);
	542	if (par->lx_krn)
	543	of_iounmap(&op->resource[0], par->lx_krn, 0x1000);
	544	if (par->cursor)
e3a411a3	545	of_iounmap(&op->resource[0],
c7f439b9 DM	546	par->cursor, sizeof(struct leo_cursor));
	547	if (info->screen_base)
	548	of_iounmap(&op->resource[0], info->screen_base, 0x800000);
50312ce9	549	}
1da177e4	550
48c68c4f	551	static int leo_probe(struct platform_device *op)
50312ce9	552	{
d4b8b2c2	553	struct device_node *dp = op->dev.of_node;
c7f439b9 DM	554	struct fb_info *info;
c7f439b9 DM	555	struct leo_par *par;
50312ce9	556	int linebytes, err;
1da177e4	557
c7f439b9 DM	558	info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);
	559
	560	err = -ENOMEM;
	561	if (!info)
	562	goto out_err;
	563	par = info->par;
1da177e4	564
c7f439b9	565	spin_lock_init(&par->lock);
1da177e4	566
8803f7af	567	info->fix.smem_start = op->resource[0].start;
c7f439b9	568	par->which_io = op->resource[0].flags & IORESOURCE_BITS;
1da177e4	569
6cd5a86b	570	sbusfb_fill_var(&info->var, dp, 32);
c7f439b9	571	leo_fixup_var_rgb(&info->var);
1da177e4	572
50312ce9	573	linebytes = of_getintprop_default(dp, "linebytes",
c7f439b9	574	info->var.xres);
8803f7af	575	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
1da177e4	576
c7f439b9	577	par->lc_ss0_usr =
50312ce9 DM	578	of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
50312ce9 DM	579	0x1000, "leolc ss0usr");
c7f439b9	580	par->ld_ss0 =
50312ce9 DM	581	of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
50312ce9 DM	582	0x1000, "leold ss0");
c7f439b9	583	par->ld_ss1 =
50312ce9 DM	584	of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
50312ce9 DM	585	0x1000, "leold ss1");
c7f439b9	586	par->lx_krn =
50312ce9 DM	587	of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
50312ce9 DM	588	0x1000, "leolx krn");
c7f439b9	589	par->cursor =
50312ce9 DM	590	of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
50312ce9 DM	591	sizeof(struct leo_cursor), "leolx cursor");
c7f439b9	592	info->screen_base =
50312ce9 DM	593	of_ioremap(&op->resource[0], LEO_OFF_SS0,
50312ce9 DM	594	0x800000, "leo ram");
c7f439b9 DM	595	if (!par->lc_ss0_usr \|\|
	596	!par->ld_ss0 \|\|
	597	!par->ld_ss1 \|\|
	598	!par->lx_krn \|\|
	599	!par->cursor \|\|
	600	!info->screen_base)
	601	goto out_unmap_regs;
1da177e4	602
738eca74	603	info->flags = FBINFO_DEFAULT;
c7f439b9	604	info->fbops = &leo_ops;
738eca74	605	info->pseudo_palette = par->clut_data;
1da177e4	606
c7f439b9 DM	607	leo_init_wids(info);
c7f439b9 DM	608	leo_init_hw(info);
1da177e4	609
59f7137a	610	leo_blank(FB_BLANK_UNBLANK, info);
1da177e4	611
c7f439b9 DM	612	if (fb_alloc_cmap(&info->cmap, 256, 0))
c7f439b9 DM	613	goto out_unmap_regs;
1da177e4	614
c7f439b9	615	leo_init_fix(info, dp);
1da177e4	616
c7f439b9 DM	617	err = register_framebuffer(info);
	618	if (err < 0)
	619	goto out_dealloc_cmap;
1da177e4	620
c7f439b9	621	dev_set_drvdata(&op->dev, info);
50312ce9	622
6d7e6533 RH	623	printk(KERN_INFO "%pOF: leo at %lx:%lx\n",
6d7e6533 RH	624	dp,
8803f7af	625	par->which_io, info->fix.smem_start);
1da177e4	626
50312ce9	627	return 0;
1da177e4	628
c7f439b9 DM	629	out_dealloc_cmap:
	630	fb_dealloc_cmap(&info->cmap);
	631
	632	out_unmap_regs:
	633	leo_unmap_regs(op, info, par);
	634	framebuffer_release(info);
1da177e4	635
c7f439b9 DM	636	out_err:
c7f439b9 DM	637	return err;
50312ce9	638	}
1da177e4	639
48c68c4f	640	static int leo_remove(struct platform_device *op)
50312ce9	641	{
c7f439b9 DM	642	struct fb_info *info = dev_get_drvdata(&op->dev);
c7f439b9 DM	643	struct leo_par *par = info->par;
50312ce9	644
c7f439b9 DM	645	unregister_framebuffer(info);
c7f439b9 DM	646	fb_dealloc_cmap(&info->cmap);
50312ce9	647
c7f439b9	648	leo_unmap_regs(op, info, par);
50312ce9	649
c7f439b9	650	framebuffer_release(info);
50312ce9	651
1da177e4 LT	652	return 0;
	653	}
	654
fd098316	655	static const struct of_device_id leo_match[] = {
50312ce9	656	{
738eca74	657	.name = "SUNW,leo",
50312ce9 DM	658	},
	659	{},
	660	};
	661	MODULE_DEVICE_TABLE(of, leo_match);
	662
28541d0f	663	static struct platform_driver leo_driver = {
4018294b GL	664	.driver = {
4018294b GL	665	.name = "leo",
4018294b GL	666	.of_match_table = leo_match,
4018294b GL	667	},
50312ce9	668	.probe = leo_probe,
48c68c4f	669	.remove = leo_remove,
50312ce9	670	};
1da177e4	671
50312ce9 DM	672	static int __init leo_init(void)
	673	{
	674	if (fb_get_options("leofb", NULL))
	675	return -ENODEV;
1da177e4	676
28541d0f	677	return platform_driver_register(&leo_driver);
1da177e4 LT	678	}
1da177e4 LT	679
50312ce9	680	static void __exit leo_exit(void)
1da177e4	681	{
28541d0f	682	platform_driver_unregister(&leo_driver);
1da177e4 LT	683	}
	684
	685	module_init(leo_init);
1da177e4	686	module_exit(leo_exit);
1da177e4 LT	687
1da177e4 LT	688	MODULE_DESCRIPTION("framebuffer driver for LEO chipsets");
50312ce9 DM	689	MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
50312ce9 DM	690	MODULE_VERSION("2.0");
1da177e4	691	MODULE_LICENSE("GPL");