[linux-2.6-block.git] / drivers / video / p9100.c

/* p9100.c: P9100 frame buffer driver
 *
 * Copyright (C) 2003 David S. Miller (davem@redhat.com)
 * Copyright 1999 Derrick J Brashear (shadow@dementia.org)
 *
 * 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,
};

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