[linux.git] / drivers / video / p9100.c

/* p9100.c: P9100 frame buffer driver
 *
 * Copyright (C) 2003 David S. Miller ([email protected])
 * Copyright 1999 Derrick J Brashear ([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/slab.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/fb.h>
#include <linux/mm.h>

#include <asm/io.h>
#include <asm/sbus.h>
#include <asm/oplib.h>
#include <asm/fbio.h>

#include "sbuslib.h"

/*
 * Local functions.
 */

static int p9100_setcolreg(unsigned, unsigned, unsigned, unsigned,
			   unsigned, struct fb_info *);
static int p9100_blank(int, struct fb_info *);

static int p9100_mmap(struct fb_info *, struct file *, struct vm_area_struct *);
static int p9100_ioctl(struct inode *, struct file *, unsigned int,
		       unsigned long, struct fb_info *);

/*
 *  Frame buffer operations
 */

static struct fb_ops p9100_ops = {
	.owner			= THIS_MODULE,
	.fb_setcolreg		= p9100_setcolreg,
	.fb_blank		= p9100_blank,
	.fb_fillrect		= cfb_fillrect,
	.fb_copyarea		= cfb_copyarea,
	.fb_imageblit		= cfb_imageblit,
	.fb_mmap		= p9100_mmap,
	.fb_ioctl		= p9100_ioctl,
#ifdef CONFIG_COMPAT
	.fb_compat_ioctl	= sbusfb_compat_ioctl,
#endif
};

/* P9100 control registers */
#define P9100_SYSCTL_OFF	0x0UL
#define P9100_VIDEOCTL_OFF	0x100UL
#define P9100_VRAMCTL_OFF 	0x180UL
#define P9100_RAMDAC_OFF 	0x200UL
#define P9100_VIDEOCOPROC_OFF 	0x400UL

/* P9100 command registers */
#define P9100_CMD_OFF 0x0UL

/* P9100 framebuffer memory */
#define P9100_FB_OFF 0x0UL

/* 3 bits: 2=8bpp 3=16bpp 5=32bpp 7=24bpp */
#define SYS_CONFIG_PIXELSIZE_SHIFT 26 

#define SCREENPAINT_TIMECTL1_ENABLE_VIDEO 0x20 /* 0 = off, 1 = on */

struct p9100_regs {
	/* Registers for the system control */
	volatile u32 sys_base;
	volatile u32 sys_config;
	volatile u32 sys_intr;
	volatile u32 sys_int_ena;
	volatile u32 sys_alt_rd;
	volatile u32 sys_alt_wr;
	volatile u32 sys_xxx[58];

	/* Registers for the video control */
	volatile u32 vid_base;
	volatile u32 vid_hcnt;
	volatile u32 vid_htotal;
	volatile u32 vid_hsync_rise;
	volatile u32 vid_hblank_rise;
	volatile u32 vid_hblank_fall;
	volatile u32 vid_hcnt_preload;
	volatile u32 vid_vcnt;
	volatile u32 vid_vlen;
	volatile u32 vid_vsync_rise;
	volatile u32 vid_vblank_rise;
	volatile u32 vid_vblank_fall;
	volatile u32 vid_vcnt_preload;
	volatile u32 vid_screenpaint_addr;
	volatile u32 vid_screenpaint_timectl1;
	volatile u32 vid_screenpaint_qsfcnt;
	volatile u32 vid_screenpaint_timectl2;
	volatile u32 vid_xxx[15];

	/* Registers for the video control */
	volatile u32 vram_base;
	volatile u32 vram_memcfg;
	volatile u32 vram_refresh_pd;
	volatile u32 vram_refresh_cnt;
	volatile u32 vram_raslo_max;
	volatile u32 vram_raslo_cur;
	volatile u32 pwrup_cfg;
	volatile u32 vram_xxx[25];

	/* Registers for IBM RGB528 Palette */
	volatile u32 ramdac_cmap_wridx; 
	volatile u32 ramdac_palette_data;
	volatile u32 ramdac_pixel_mask;
	volatile u32 ramdac_palette_rdaddr;
	volatile u32 ramdac_idx_lo;
	volatile u32 ramdac_idx_hi;
	volatile u32 ramdac_idx_data;
	volatile u32 ramdac_idx_ctl;
	volatile u32 ramdac_xxx[1784];
};

struct p9100_cmd_parameng {
	volatile u32 parameng_status;
	volatile u32 parameng_bltcmd;
	volatile u32 parameng_quadcmd;
};

struct p9100_par {
	spinlock_t		lock;
	struct p9100_regs	__iomem *regs;

	u32			flags;
#define P9100_FLAG_BLANKED	0x00000001

	unsigned long		physbase;
	unsigned long		fbsize;

	struct sbus_dev		*sdev;
	struct list_head	list;
};

/**
 *      p9100_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 p9100_setcolreg(unsigned regno,
			   unsigned red, unsigned green, unsigned blue,
			   unsigned transp, struct fb_info *info)
{
	struct p9100_par *par = (struct p9100_par *) info->par;
	struct p9100_regs __iomem *regs = par->regs;
	unsigned long flags;

	if (regno >= 256)
		return 1;

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

	spin_lock_irqsave(&par->lock, flags);

	sbus_writel((regno << 16), &regs->ramdac_cmap_wridx);
	sbus_writel((red << 16), &regs->ramdac_palette_data);
	sbus_writel((green << 16), &regs->ramdac_palette_data);
	sbus_writel((blue << 16), &regs->ramdac_palette_data);

	spin_unlock_irqrestore(&par->lock, flags);

	return 0;
}

/**
 *      p9100_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
p9100_blank(int blank, struct fb_info *info)
{
	struct p9100_par *par = (struct p9100_par *) info->par;
	struct p9100_regs __iomem *regs = par->regs;
	unsigned long flags;
	u32 val;

	spin_lock_irqsave(&par->lock, flags);

	switch (blank) {
	case FB_BLANK_UNBLANK: /* Unblanking */
		val = sbus_readl(&regs->vid_screenpaint_timectl1);
		val |= SCREENPAINT_TIMECTL1_ENABLE_VIDEO;
		sbus_writel(val, &regs->vid_screenpaint_timectl1);
		par->flags &= ~P9100_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(&regs->vid_screenpaint_timectl1);
		val &= ~SCREENPAINT_TIMECTL1_ENABLE_VIDEO;
		sbus_writel(val, &regs->vid_screenpaint_timectl1);
		par->flags |= P9100_FLAG_BLANKED;
		break;
	}

	spin_unlock_irqrestore(&par->lock, flags);

	return 0;
}

static struct sbus_mmap_map p9100_mmap_map[] = {
	{ CG3_MMAP_OFFSET,	0,		SBUS_MMAP_FBSIZE(1) },
	{ 0,			0,		0		    }
};

static int p9100_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma)
{
	struct p9100_par *par = (struct p9100_par *)info->par;

	return sbusfb_mmap_helper(p9100_mmap_map,
				  par->physbase, par->fbsize,
				  par->sdev->reg_addrs[0].which_io,
				  vma);
}

static int p9100_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
		       unsigned long arg, struct fb_info *info)
{
	struct p9100_par *par = (struct p9100_par *) info->par;

	/* Make it look like a cg3. */
	return sbusfb_ioctl_helper(cmd, arg, info,
				   FBTYPE_SUN3COLOR, 8, par->fbsize);
}

/*
 *  Initialisation
 */

static void
p9100_init_fix(struct fb_info *info, int linebytes)
{
	struct p9100_par *par = (struct p9100_par *)info->par;

	strlcpy(info->fix.id, par->sdev->prom_name, sizeof(info->fix.id));

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

	info->fix.line_length = linebytes;

	info->fix.accel = FB_ACCEL_SUN_CGTHREE;
}

struct all_info {
	struct fb_info info;
	struct p9100_par par;
	struct list_head list;
};
static LIST_HEAD(p9100_list);

static void p9100_init_one(struct sbus_dev *sdev)
{
	struct all_info *all;
	int linebytes;

	all = kmalloc(sizeof(*all), GFP_KERNEL);
	if (!all) {
		printk(KERN_ERR "p9100: Cannot allocate memory.\n");
		return;
	}
	memset(all, 0, sizeof(*all));

	INIT_LIST_HEAD(&all->list);

	spin_lock_init(&all->par.lock);
	all->par.sdev = sdev;

	/* This is the framebuffer and the only resource apps can mmap.  */
	all->par.physbase = sdev->reg_addrs[2].phys_addr;

	sbusfb_fill_var(&all->info.var, sdev->prom_node, 8);
	all->info.var.red.length = 8;
	all->info.var.green.length = 8;
	all->info.var.blue.length = 8;

	linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
				       all->info.var.xres);
	all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);

	all->par.regs = sbus_ioremap(&sdev->resource[0], 0,
			     sizeof(struct p9100_regs), "p9100 regs");

	all->info.flags = FBINFO_DEFAULT;
	all->info.fbops = &p9100_ops;
#ifdef CONFIG_SPARC32
	all->info.screen_base = (char __iomem *)
		prom_getintdefault(sdev->prom_node, "address", 0);
#endif
	if (!all->info.screen_base)
		all->info.screen_base = sbus_ioremap(&sdev->resource[2], 0,
				     all->par.fbsize, "p9100 ram");
	all->info.par = &all->par;

	p9100_blank(0, &all->info);

	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
		printk(KERN_ERR "p9100: Could not allocate color map.\n");
		kfree(all);
		return;
	}

	p9100_init_fix(&all->info, linebytes);

	if (register_framebuffer(&all->info) < 0) {
		printk(KERN_ERR "p9100: Could not register framebuffer.\n");
		fb_dealloc_cmap(&all->info.cmap);
		kfree(all);
		return;
	}
	fb_set_cmap(&all->info.cmap, &all->info);

	list_add(&all->list, &p9100_list);

	printk("p9100: %s at %lx:%lx\n",
	       sdev->prom_name,
	       (long) sdev->reg_addrs[0].which_io,
	       (long) sdev->reg_addrs[0].phys_addr);
}

int __init p9100_init(void)
{
	struct sbus_bus *sbus;
	struct sbus_dev *sdev;

	if (fb_get_options("p9100fb", NULL))
		return -ENODEV;

	for_all_sbusdev(sdev, sbus) {
		if (!strcmp(sdev->prom_name, "p9100"))
			p9100_init_one(sdev);
	}

	return 0;
}

void __exit p9100_exit(void)
{
	struct list_head *pos, *tmp;

	list_for_each_safe(pos, tmp, &p9100_list) {
		struct all_info *all = list_entry(pos, typeof(*all), list);

		unregister_framebuffer(&all->info);
		fb_dealloc_cmap(&all->info.cmap);
		kfree(all);
	}
}

int __init
p9100_setup(char *arg)
{
	/* No cmdline options yet... */
	return 0;
}

module_init(p9100_init);

#ifdef MODULE
module_exit(p9100_exit);
#endif

MODULE_DESCRIPTION("framebuffer driver for P9100 chipsets");
MODULE_AUTHOR("David S. Miller <[email protected]>");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/* p9100.c: P9100 frame buffer driver
	2	*
	3	* Copyright (C) 2003 David S. Miller ([email protected])
	4	* Copyright 1999 Derrick J Brashear ([email protected])
	5	*
	6	* Driver layout based loosely on tgafb.c, see that file for credits.
	7	*/
	8
	9	#include <linux/module.h>
	10	#include <linux/kernel.h>
	11	#include <linux/errno.h>
	12	#include <linux/string.h>
	13	#include <linux/slab.h>
	14	#include <linux/delay.h>
	15	#include <linux/init.h>
	16	#include <linux/fb.h>
	17	#include <linux/mm.h>
	18
	19	#include <asm/io.h>
	20	#include <asm/sbus.h>
	21	#include <asm/oplib.h>
	22	#include <asm/fbio.h>
	23
	24	#include "sbuslib.h"
	25
	26	/*
	27	* Local functions.
	28	*/
	29
	30	static int p9100_setcolreg(unsigned, unsigned, unsigned, unsigned,
	31	unsigned, struct fb_info *);
	32	static int p9100_blank(int, struct fb_info *);
	33
	34	static int p9100_mmap(struct fb_info , struct file , struct vm_area_struct *);
	35	static int p9100_ioctl(struct inode , struct file , unsigned int,
	36	unsigned long, struct fb_info *);
	37
	38	/*
	39	* Frame buffer operations
	40	*/
	41
	42	static struct fb_ops p9100_ops = {
	43	.owner = THIS_MODULE,
	44	.fb_setcolreg = p9100_setcolreg,
	45	.fb_blank = p9100_blank,
	46	.fb_fillrect = cfb_fillrect,
	47	.fb_copyarea = cfb_copyarea,
	48	.fb_imageblit = cfb_imageblit,
	49	.fb_mmap = p9100_mmap,
	50	.fb_ioctl = p9100_ioctl,
9ffb83bc CH	51	#ifdef CONFIG_COMPAT
	52	.fb_compat_ioctl = sbusfb_compat_ioctl,
	53	#endif
1da177e4 LT	54	};
	55
	56	/* P9100 control registers */
	57	#define P9100_SYSCTL_OFF 0x0UL
	58	#define P9100_VIDEOCTL_OFF 0x100UL
	59	#define P9100_VRAMCTL_OFF 0x180UL
	60	#define P9100_RAMDAC_OFF 0x200UL
	61	#define P9100_VIDEOCOPROC_OFF 0x400UL
	62
	63	/* P9100 command registers */
	64	#define P9100_CMD_OFF 0x0UL
	65
	66	/* P9100 framebuffer memory */
	67	#define P9100_FB_OFF 0x0UL
	68
	69	/* 3 bits: 2=8bpp 3=16bpp 5=32bpp 7=24bpp */
	70	#define SYS_CONFIG_PIXELSIZE_SHIFT 26
	71
	72	#define SCREENPAINT_TIMECTL1_ENABLE_VIDEO 0x20 /* 0 = off, 1 = on */
	73
	74	struct p9100_regs {
	75	/* Registers for the system control */
	76	volatile u32 sys_base;
	77	volatile u32 sys_config;
	78	volatile u32 sys_intr;
	79	volatile u32 sys_int_ena;
	80	volatile u32 sys_alt_rd;
	81	volatile u32 sys_alt_wr;
	82	volatile u32 sys_xxx[58];
	83
	84	/* Registers for the video control */
	85	volatile u32 vid_base;
	86	volatile u32 vid_hcnt;
	87	volatile u32 vid_htotal;
	88	volatile u32 vid_hsync_rise;
	89	volatile u32 vid_hblank_rise;
	90	volatile u32 vid_hblank_fall;
	91	volatile u32 vid_hcnt_preload;
	92	volatile u32 vid_vcnt;
	93	volatile u32 vid_vlen;
	94	volatile u32 vid_vsync_rise;
	95	volatile u32 vid_vblank_rise;
	96	volatile u32 vid_vblank_fall;
	97	volatile u32 vid_vcnt_preload;
	98	volatile u32 vid_screenpaint_addr;
	99	volatile u32 vid_screenpaint_timectl1;
	100	volatile u32 vid_screenpaint_qsfcnt;
	101	volatile u32 vid_screenpaint_timectl2;
	102	volatile u32 vid_xxx[15];
	103
	104	/* Registers for the video control */
	105	volatile u32 vram_base;
	106	volatile u32 vram_memcfg;
	107	volatile u32 vram_refresh_pd;
	108	volatile u32 vram_refresh_cnt;
	109	volatile u32 vram_raslo_max;
	110	volatile u32 vram_raslo_cur;
	111	volatile u32 pwrup_cfg;
	112	volatile u32 vram_xxx[25];
	113
	114	/* Registers for IBM RGB528 Palette */
	115	volatile u32 ramdac_cmap_wridx;
	116	volatile u32 ramdac_palette_data;
	117	volatile u32 ramdac_pixel_mask;
118	volatile u32 ramdac_palette_rdaddr;
119	volatile u32 ramdac_idx_lo;
120	volatile u32 ramdac_idx_hi;
121	volatile u32 ramdac_idx_data;
122	volatile u32 ramdac_idx_ctl;
123	volatile u32 ramdac_xxx[1784];
124	};
125
126	struct p9100_cmd_parameng {
127	volatile u32 parameng_status;
128	volatile u32 parameng_bltcmd;
129	volatile u32 parameng_quadcmd;
130	};
131
132	struct p9100_par {
133	spinlock_t lock;
134	struct p9100_regs __iomem *regs;
135
136	u32 flags;
137	#define P9100_FLAG_BLANKED 0x00000001
138
139	unsigned long physbase;
140	unsigned long fbsize;
141
142	struct sbus_dev *sdev;
143	struct list_head list;
144	};
145
146	/**
147	* p9100_setcolreg - Optional function. Sets a color register.
148	* @regno: boolean, 0 copy local, 1 get_user() function
149	* @red: frame buffer colormap structure
150	* @green: The green value which can be up to 16 bits wide
151	* @blue: The blue value which can be up to 16 bits wide.
152	* @transp: If supported the alpha value which can be up to 16 bits wide.
153	* @info: frame buffer info structure
154	*/
155	static int p9100_setcolreg(unsigned regno,
156	unsigned red, unsigned green, unsigned blue,
157	unsigned transp, struct fb_info *info)
158	{
159	struct p9100_par par = (struct p9100_par ) info->par;
160	struct p9100_regs __iomem *regs = par->regs;
161	unsigned long flags;
162
163	if (regno >= 256)
164	return 1;
165
166	red >>= 8;
167	green >>= 8;
168	blue >>= 8;
169
170	spin_lock_irqsave(&par->lock, flags);
171
172	sbus_writel((regno << 16), &regs->ramdac_cmap_wridx);
173	sbus_writel((red << 16), &regs->ramdac_palette_data);
174	sbus_writel((green << 16), &regs->ramdac_palette_data);
175	sbus_writel((blue << 16), &regs->ramdac_palette_data);
176
177	spin_unlock_irqrestore(&par->lock, flags);
178
179	return 0;
180	}
181
182	/**
183	* p9100_blank - Optional function. Blanks the display.
184	* @blank_mode: the blank mode we want.
185	* @info: frame buffer structure that represents a single frame buffer
186	*/
187	static int
188	p9100_blank(int blank, struct fb_info *info)
189	{
190	struct p9100_par par = (struct p9100_par ) info->par;
191	struct p9100_regs __iomem *regs = par->regs;
192	unsigned long flags;
193	u32 val;
194
195	spin_lock_irqsave(&par->lock, flags);
196
197	switch (blank) {
198	case FB_BLANK_UNBLANK: /* Unblanking */
199	val = sbus_readl(&regs->vid_screenpaint_timectl1);
200	val \|= SCREENPAINT_TIMECTL1_ENABLE_VIDEO;
201	sbus_writel(val, &regs->vid_screenpaint_timectl1);
202	par->flags &= ~P9100_FLAG_BLANKED;
203	break;
204
205	case FB_BLANK_NORMAL: /* Normal blanking */
206	case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
207	case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
208	case FB_BLANK_POWERDOWN: /* Poweroff */
209	val = sbus_readl(&regs->vid_screenpaint_timectl1);
210	val &= ~SCREENPAINT_TIMECTL1_ENABLE_VIDEO;
211	sbus_writel(val, &regs->vid_screenpaint_timectl1);
212	par->flags \|= P9100_FLAG_BLANKED;
213	break;
214	}
215
216	spin_unlock_irqrestore(&par->lock, flags);
217
218	return 0;
219	}
220
221	static struct sbus_mmap_map p9100_mmap_map[] = {
222	{ CG3_MMAP_OFFSET, 0, SBUS_MMAP_FBSIZE(1) },
223	{ 0, 0, 0 }
224	};
225
226	static int p9100_mmap(struct fb_info info, struct file file, struct vm_area_struct *vma)
227	{
228	struct p9100_par par = (struct p9100_par )info->par;
229
230	return sbusfb_mmap_helper(p9100_mmap_map,
231	par->physbase, par->fbsize,
232	par->sdev->reg_addrs[0].which_io,
233	vma);
234	}
235
236	static int p9100_ioctl(struct inode inode, struct file file, unsigned int cmd,
237	unsigned long arg, struct fb_info *info)
238	{
239	struct p9100_par par = (struct p9100_par ) info->par;
240
241	/* Make it look like a cg3. */
242	return sbusfb_ioctl_helper(cmd, arg, info,
243	FBTYPE_SUN3COLOR, 8, par->fbsize);
244	}
245
246	/*
247	* Initialisation
248	*/
249
250	static void
251	p9100_init_fix(struct fb_info *info, int linebytes)
252	{
253	struct p9100_par par = (struct p9100_par )info->par;
254
255	strlcpy(info->fix.id, par->sdev->prom_name, sizeof(info->fix.id));
256
257	info->fix.type = FB_TYPE_PACKED_PIXELS;
258	info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
259
260	info->fix.line_length = linebytes;
261
262	info->fix.accel = FB_ACCEL_SUN_CGTHREE;
263	}
264
265	struct all_info {
266	struct fb_info info;
267	struct p9100_par par;
268	struct list_head list;
269	};
270	static LIST_HEAD(p9100_list);
271
272	static void p9100_init_one(struct sbus_dev *sdev)
273	{
274	struct all_info *all;
275	int linebytes;
276
277	all = kmalloc(sizeof(*all), GFP_KERNEL);
278	if (!all) {
279	printk(KERN_ERR "p9100: Cannot allocate memory.\n");
280	return;
281	}
282	memset(all, 0, sizeof(*all));
283
284	INIT_LIST_HEAD(&all->list);
285
286	spin_lock_init(&all->par.lock);
287	all->par.sdev = sdev;
288
289	/* This is the framebuffer and the only resource apps can mmap. */
290	all->par.physbase = sdev->reg_addrs[2].phys_addr;
291
292	sbusfb_fill_var(&all->info.var, sdev->prom_node, 8);
d85c3553 TC	293	all->info.var.red.length = 8;
	294	all->info.var.green.length = 8;
	295	all->info.var.blue.length = 8;
1da177e4 LT	296
	297	linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
	298	all->info.var.xres);
	299	all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
	300
	301	all->par.regs = sbus_ioremap(&sdev->resource[0], 0,
	302	sizeof(struct p9100_regs), "p9100 regs");
	303
	304	all->info.flags = FBINFO_DEFAULT;
	305	all->info.fbops = &p9100_ops;
	306	#ifdef CONFIG_SPARC32
	307	all->info.screen_base = (char __iomem *)
	308	prom_getintdefault(sdev->prom_node, "address", 0);
	309	#endif
	310	if (!all->info.screen_base)
	311	all->info.screen_base = sbus_ioremap(&sdev->resource[2], 0,
	312	all->par.fbsize, "p9100 ram");
	313	all->info.par = &all->par;
	314
	315	p9100_blank(0, &all->info);
	316
	317	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
	318	printk(KERN_ERR "p9100: Could not allocate color map.\n");
	319	kfree(all);
	320	return;
	321	}
	322
	323	p9100_init_fix(&all->info, linebytes);
	324
	325	if (register_framebuffer(&all->info) < 0) {
	326	printk(KERN_ERR "p9100: Could not register framebuffer.\n");
	327	fb_dealloc_cmap(&all->info.cmap);
	328	kfree(all);
	329	return;
	330	}
d85c3553	331	fb_set_cmap(&all->info.cmap, &all->info);
1da177e4 LT	332
	333	list_add(&all->list, &p9100_list);
	334
	335	printk("p9100: %s at %lx:%lx\n",
	336	sdev->prom_name,
	337	(long) sdev->reg_addrs[0].which_io,
	338	(long) sdev->reg_addrs[0].phys_addr);
	339	}
	340
	341	int __init p9100_init(void)
	342	{
	343	struct sbus_bus *sbus;
	344	struct sbus_dev *sdev;
	345
	346	if (fb_get_options("p9100fb", NULL))
	347	return -ENODEV;
	348
	349	for_all_sbusdev(sdev, sbus) {
	350	if (!strcmp(sdev->prom_name, "p9100"))
	351	p9100_init_one(sdev);
	352	}
	353
	354	return 0;
	355	}
	356
	357	void __exit p9100_exit(void)
	358	{
	359	struct list_head pos, tmp;
	360
	361	list_for_each_safe(pos, tmp, &p9100_list) {
	362	struct all_info all = list_entry(pos, typeof(all), list);
	363
	364	unregister_framebuffer(&all->info);
	365	fb_dealloc_cmap(&all->info.cmap);
	366	kfree(all);
	367	}
	368	}
	369
	370	int __init
	371	p9100_setup(char *arg)
	372	{
	373	/* No cmdline options yet... */
	374	return 0;
	375	}
	376
	377	module_init(p9100_init);
	378
	379	#ifdef MODULE
	380	module_exit(p9100_exit);
	381	#endif
	382
	383	MODULE_DESCRIPTION("framebuffer driver for P9100 chipsets");
	384	MODULE_AUTHOR("David S. Miller <[email protected]>");
	385	MODULE_LICENSE("GPL");