1 /* cg6.c: CGSIX (GX, GXplus, TGX) frame buffer driver
3 * Copyright (C) 2003 David S. Miller (davem@redhat.com)
4 * Copyright (C) 1996,1998 Jakub Jelinek (jj@ultra.linux.cz)
5 * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
6 * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
8 * Driver layout based loosely on tgafb.c, see that file for credits.
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/errno.h>
14 #include <linux/string.h>
15 #include <linux/slab.h>
16 #include <linux/delay.h>
17 #include <linux/init.h>
23 #include <asm/oplib.h>
32 static int cg6_setcolreg(unsigned, unsigned, unsigned, unsigned,
33 unsigned, struct fb_info *);
34 static int cg6_blank(int, struct fb_info *);
36 static void cg6_imageblit(struct fb_info *, const struct fb_image *);
37 static void cg6_fillrect(struct fb_info *, const struct fb_fillrect *);
38 static int cg6_sync(struct fb_info *);
39 static int cg6_mmap(struct fb_info *, struct file *, struct vm_area_struct *);
40 static int cg6_ioctl(struct inode *, struct file *, unsigned int,
41 unsigned long, struct fb_info *);
44 * Frame buffer operations
47 static struct fb_ops cg6_ops = {
49 .fb_setcolreg = cg6_setcolreg,
50 .fb_blank = cg6_blank,
51 .fb_fillrect = cg6_fillrect,
52 .fb_copyarea = cfb_copyarea,
53 .fb_imageblit = cg6_imageblit,
56 .fb_ioctl = cg6_ioctl,
57 .fb_cursor = soft_cursor,
60 /* Offset of interesting structures in the OBIO space */
62 * Brooktree is the video dac and is funny to program on the cg6.
63 * (it's even funnier on the cg3)
64 * The FBC could be the frame buffer control
65 * The FHC could is the frame buffer hardware control.
67 #define CG6_ROM_OFFSET 0x0UL
68 #define CG6_BROOKTREE_OFFSET 0x200000UL
69 #define CG6_DHC_OFFSET 0x240000UL
70 #define CG6_ALT_OFFSET 0x280000UL
71 #define CG6_FHC_OFFSET 0x300000UL
72 #define CG6_THC_OFFSET 0x301000UL
73 #define CG6_FBC_OFFSET 0x700000UL
74 #define CG6_TEC_OFFSET 0x701000UL
75 #define CG6_RAM_OFFSET 0x800000UL
78 #define CG6_FHC_FBID_SHIFT 24
79 #define CG6_FHC_FBID_MASK 255
80 #define CG6_FHC_REV_SHIFT 20
81 #define CG6_FHC_REV_MASK 15
82 #define CG6_FHC_FROP_DISABLE (1 << 19)
83 #define CG6_FHC_ROW_DISABLE (1 << 18)
84 #define CG6_FHC_SRC_DISABLE (1 << 17)
85 #define CG6_FHC_DST_DISABLE (1 << 16)
86 #define CG6_FHC_RESET (1 << 15)
87 #define CG6_FHC_LITTLE_ENDIAN (1 << 13)
88 #define CG6_FHC_RES_MASK (3 << 11)
89 #define CG6_FHC_1024 (0 << 11)
90 #define CG6_FHC_1152 (1 << 11)
91 #define CG6_FHC_1280 (2 << 11)
92 #define CG6_FHC_1600 (3 << 11)
93 #define CG6_FHC_CPU_MASK (3 << 9)
94 #define CG6_FHC_CPU_SPARC (0 << 9)
95 #define CG6_FHC_CPU_68020 (1 << 9)
96 #define CG6_FHC_CPU_386 (2 << 9)
97 #define CG6_FHC_TEST (1 << 8)
98 #define CG6_FHC_TEST_X_SHIFT 4
99 #define CG6_FHC_TEST_X_MASK 15
100 #define CG6_FHC_TEST_Y_SHIFT 0
101 #define CG6_FHC_TEST_Y_MASK 15
103 /* FBC mode definitions */
104 #define CG6_FBC_BLIT_IGNORE 0x00000000
105 #define CG6_FBC_BLIT_NOSRC 0x00100000
106 #define CG6_FBC_BLIT_SRC 0x00200000
107 #define CG6_FBC_BLIT_ILLEGAL 0x00300000
108 #define CG6_FBC_BLIT_MASK 0x00300000
110 #define CG6_FBC_VBLANK 0x00080000
112 #define CG6_FBC_MODE_IGNORE 0x00000000
113 #define CG6_FBC_MODE_COLOR8 0x00020000
114 #define CG6_FBC_MODE_COLOR1 0x00040000
115 #define CG6_FBC_MODE_HRMONO 0x00060000
116 #define CG6_FBC_MODE_MASK 0x00060000
118 #define CG6_FBC_DRAW_IGNORE 0x00000000
119 #define CG6_FBC_DRAW_RENDER 0x00008000
120 #define CG6_FBC_DRAW_PICK 0x00010000
121 #define CG6_FBC_DRAW_ILLEGAL 0x00018000
122 #define CG6_FBC_DRAW_MASK 0x00018000
124 #define CG6_FBC_BWRITE0_IGNORE 0x00000000
125 #define CG6_FBC_BWRITE0_ENABLE 0x00002000
126 #define CG6_FBC_BWRITE0_DISABLE 0x00004000
127 #define CG6_FBC_BWRITE0_ILLEGAL 0x00006000
128 #define CG6_FBC_BWRITE0_MASK 0x00006000
130 #define CG6_FBC_BWRITE1_IGNORE 0x00000000
131 #define CG6_FBC_BWRITE1_ENABLE 0x00000800
132 #define CG6_FBC_BWRITE1_DISABLE 0x00001000
133 #define CG6_FBC_BWRITE1_ILLEGAL 0x00001800
134 #define CG6_FBC_BWRITE1_MASK 0x00001800
136 #define CG6_FBC_BREAD_IGNORE 0x00000000
137 #define CG6_FBC_BREAD_0 0x00000200
138 #define CG6_FBC_BREAD_1 0x00000400
139 #define CG6_FBC_BREAD_ILLEGAL 0x00000600
140 #define CG6_FBC_BREAD_MASK 0x00000600
142 #define CG6_FBC_BDISP_IGNORE 0x00000000
143 #define CG6_FBC_BDISP_0 0x00000080
144 #define CG6_FBC_BDISP_1 0x00000100
145 #define CG6_FBC_BDISP_ILLEGAL 0x00000180
146 #define CG6_FBC_BDISP_MASK 0x00000180
148 #define CG6_FBC_INDEX_MOD 0x00000040
149 #define CG6_FBC_INDEX_MASK 0x00000030
151 /* THC definitions */
152 #define CG6_THC_MISC_REV_SHIFT 16
153 #define CG6_THC_MISC_REV_MASK 15
154 #define CG6_THC_MISC_RESET (1 << 12)
155 #define CG6_THC_MISC_VIDEO (1 << 10)
156 #define CG6_THC_MISC_SYNC (1 << 9)
157 #define CG6_THC_MISC_VSYNC (1 << 8)
158 #define CG6_THC_MISC_SYNC_ENAB (1 << 7)
159 #define CG6_THC_MISC_CURS_RES (1 << 6)
160 #define CG6_THC_MISC_INT_ENAB (1 << 5)
161 #define CG6_THC_MISC_INT (1 << 4)
162 #define CG6_THC_MISC_INIT 0x9f
164 /* The contents are unknown */
166 volatile int tec_matrix;
167 volatile int tec_clip;
168 volatile int tec_vdc;
173 volatile uint thc_hs; /* hsync timing */
174 volatile uint thc_hsdvs;
175 volatile uint thc_hd;
176 volatile uint thc_vs; /* vsync timing */
177 volatile uint thc_vd;
178 volatile uint thc_refresh;
179 volatile uint thc_misc;
181 volatile uint thc_cursxy; /* cursor x,y position (16 bits each) */
182 volatile uint thc_cursmask[32]; /* cursor mask bits */
183 volatile uint thc_cursbits[32]; /* what to show where mask enabled */
196 volatile u32 x0, y0, z0, color0;
197 volatile u32 x1, y1, z1, color1;
198 volatile u32 x2, y2, z2, color2;
199 volatile u32 x3, y3, z3, color3;
200 volatile u32 offx, offy;
202 volatile u32 incx, incy;
204 volatile u32 clipminx, clipminy;
206 volatile u32 clipmaxx, clipmaxy;
214 volatile u32 patalign;
215 volatile u32 pattern[8];
217 volatile u32 apointx, apointy, apointz;
219 volatile u32 rpointx, rpointy, rpointz;
221 volatile u32 pointr, pointg, pointb, pointa;
222 volatile u32 alinex, aliney, alinez;
224 volatile u32 rlinex, rliney, rlinez;
226 volatile u32 liner, lineg, lineb, linea;
227 volatile u32 atrix, atriy, atriz;
229 volatile u32 rtrix, rtriy, rtriz;
231 volatile u32 trir, trig, trib, tria;
232 volatile u32 aquadx, aquady, aquadz;
234 volatile u32 rquadx, rquady, rquadz;
236 volatile u32 quadr, quadg, quadb, quada;
237 volatile u32 arectx, arecty, arectz;
239 volatile u32 rrectx, rrecty, rrectz;
241 volatile u32 rectr, rectg, rectb, recta;
246 volatile u32 color_map;
247 volatile u32 control;
253 struct bt_regs __iomem *bt;
254 struct cg6_fbc __iomem *fbc;
255 struct cg6_thc __iomem *thc;
256 struct cg6_tec __iomem *tec;
257 volatile u32 __iomem *fhc;
260 #define CG6_FLAG_BLANKED 0x00000001
262 unsigned long physbase;
263 unsigned long fbsize;
265 struct sbus_dev *sdev;
266 struct list_head list;
269 static int cg6_sync(struct fb_info *info)
271 struct cg6_par *par = (struct cg6_par *) info->par;
272 struct cg6_fbc __iomem *fbc = par->fbc;
276 if (!(sbus_readl(&fbc->s) & 0x10000000))
279 } while (--limit > 0);
285 * cg6_fillrect - REQUIRED function. Can use generic routines if
286 * non acclerated hardware and packed pixel based.
287 * Draws a rectangle on the screen.
289 * @info: frame buffer structure that represents a single frame buffer
290 * @rect: structure defining the rectagle and operation.
292 static void cg6_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
294 struct cg6_par *par = (struct cg6_par *) info->par;
295 struct cg6_fbc __iomem *fbc = par->fbc;
299 /* XXX doesn't handle ROP_XOR */
301 spin_lock_irqsave(&par->lock, flags);
303 sbus_writel(rect->color, &fbc->fg);
304 sbus_writel(~(u32)0, &fbc->pixelm);
305 sbus_writel(0xea80ff00, &fbc->alu);
306 sbus_writel(0, &fbc->s);
307 sbus_writel(0, &fbc->clip);
308 sbus_writel(~(u32)0, &fbc->pm);
309 sbus_writel(rect->dy, &fbc->arecty);
310 sbus_writel(rect->dx, &fbc->arectx);
311 sbus_writel(rect->dy + rect->height, &fbc->arecty);
312 sbus_writel(rect->dx + rect->width, &fbc->arectx);
314 val = sbus_readl(&fbc->draw);
315 } while (val < 0 && (val & 0x20000000));
316 spin_unlock_irqrestore(&par->lock, flags);
320 * cg6_imageblit - REQUIRED function. Can use generic routines if
321 * non acclerated hardware and packed pixel based.
322 * Copies a image from system memory to the screen.
324 * @info: frame buffer structure that represents a single frame buffer
325 * @image: structure defining the image.
327 static void cg6_imageblit(struct fb_info *info, const struct fb_image *image)
329 struct cg6_par *par = (struct cg6_par *) info->par;
330 struct cg6_fbc __iomem *fbc = par->fbc;
331 const u8 *data = image->data;
336 if (image->depth > 1) {
337 cfb_imageblit(info, image);
341 spin_lock_irqsave(&par->lock, flags);
345 sbus_writel(image->fg_color, &fbc->fg);
346 sbus_writel(image->bg_color, &fbc->bg);
347 sbus_writel(0x140000, &fbc->mode);
348 sbus_writel(0xe880fc30, &fbc->alu);
349 sbus_writel(~(u32)0, &fbc->pixelm);
350 sbus_writel(0, &fbc->s);
351 sbus_writel(0, &fbc->clip);
352 sbus_writel(0xff, &fbc->pm);
353 sbus_writel(32, &fbc->incx);
354 sbus_writel(0, &fbc->incy);
358 for (i = 0; i < image->height; i++) {
359 width = image->width;
361 while (width >= 32) {
364 sbus_writel(y, &fbc->y0);
365 sbus_writel(x, &fbc->x0);
366 sbus_writel(x + 32 - 1, &fbc->x1);
368 val = ((u32)data[0] << 24) |
369 ((u32)data[1] << 16) |
370 ((u32)data[2] << 8) |
372 sbus_writel(val, &fbc->font);
381 sbus_writel(y, &fbc->y0);
382 sbus_writel(x, &fbc->x0);
383 sbus_writel(x + width - 1, &fbc->x1);
385 val = (u32) data[0] << 24;
387 } else if (width <= 16) {
388 val = ((u32) data[0] << 24) |
389 ((u32) data[1] << 16);
392 val = ((u32) data[0] << 24) |
393 ((u32) data[1] << 16) |
394 ((u32) data[2] << 8);
397 sbus_writel(val, &fbc->font);
404 spin_unlock_irqrestore(&par->lock, flags);
408 * cg6_setcolreg - Optional function. Sets a color register.
409 * @regno: boolean, 0 copy local, 1 get_user() function
410 * @red: frame buffer colormap structure
411 * @green: The green value which can be up to 16 bits wide
412 * @blue: The blue value which can be up to 16 bits wide.
413 * @transp: If supported the alpha value which can be up to 16 bits wide.
414 * @info: frame buffer info structure
416 static int cg6_setcolreg(unsigned regno,
417 unsigned red, unsigned green, unsigned blue,
418 unsigned transp, struct fb_info *info)
420 struct cg6_par *par = (struct cg6_par *) info->par;
421 struct bt_regs __iomem *bt = par->bt;
431 spin_lock_irqsave(&par->lock, flags);
433 sbus_writel((u32)regno << 24, &bt->addr);
434 sbus_writel((u32)red << 24, &bt->color_map);
435 sbus_writel((u32)green << 24, &bt->color_map);
436 sbus_writel((u32)blue << 24, &bt->color_map);
438 spin_unlock_irqrestore(&par->lock, flags);
444 * cg6_blank - Optional function. Blanks the display.
445 * @blank_mode: the blank mode we want.
446 * @info: frame buffer structure that represents a single frame buffer
449 cg6_blank(int blank, struct fb_info *info)
451 struct cg6_par *par = (struct cg6_par *) info->par;
452 struct cg6_thc __iomem *thc = par->thc;
456 spin_lock_irqsave(&par->lock, flags);
459 case FB_BLANK_UNBLANK: /* Unblanking */
460 val = sbus_readl(&thc->thc_misc);
461 val |= CG6_THC_MISC_VIDEO;
462 sbus_writel(val, &thc->thc_misc);
463 par->flags &= ~CG6_FLAG_BLANKED;
466 case FB_BLANK_NORMAL: /* Normal blanking */
467 case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
468 case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
469 case FB_BLANK_POWERDOWN: /* Poweroff */
470 val = sbus_readl(&thc->thc_misc);
471 val &= ~CG6_THC_MISC_VIDEO;
472 sbus_writel(val, &thc->thc_misc);
473 par->flags |= CG6_FLAG_BLANKED;
477 spin_unlock_irqrestore(&par->lock, flags);
482 static struct sbus_mmap_map cg6_mmap_map[] = {
485 .poff = CG6_FBC_OFFSET,
490 .poff = CG6_TEC_OFFSET,
495 .poff = CG6_BROOKTREE_OFFSET,
500 .poff = CG6_FHC_OFFSET,
505 .poff = CG6_THC_OFFSET,
510 .poff = CG6_ROM_OFFSET,
515 .poff = CG6_RAM_OFFSET,
516 .size = SBUS_MMAP_FBSIZE(1)
520 .poff = CG6_DHC_OFFSET,
526 static int cg6_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma)
528 struct cg6_par *par = (struct cg6_par *)info->par;
530 return sbusfb_mmap_helper(cg6_mmap_map,
531 par->physbase, par->fbsize,
532 par->sdev->reg_addrs[0].which_io,
536 static int cg6_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
537 unsigned long arg, struct fb_info *info)
539 struct cg6_par *par = (struct cg6_par *) info->par;
541 return sbusfb_ioctl_helper(cmd, arg, info,
542 FBTYPE_SUNFAST_COLOR, 8, par->fbsize);
550 cg6_init_fix(struct fb_info *info, int linebytes)
552 struct cg6_par *par = (struct cg6_par *)info->par;
553 const char *cg6_cpu_name, *cg6_card_name;
556 conf = sbus_readl(par->fhc);
557 switch(conf & CG6_FHC_CPU_MASK) {
558 case CG6_FHC_CPU_SPARC:
559 cg6_cpu_name = "sparc";
561 case CG6_FHC_CPU_68020:
562 cg6_cpu_name = "68020";
565 cg6_cpu_name = "i386";
568 if (((conf >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK) >= 11) {
569 if (par->fbsize <= 0x100000) {
570 cg6_card_name = "TGX";
572 cg6_card_name = "TGX+";
575 if (par->fbsize <= 0x100000) {
576 cg6_card_name = "GX";
578 cg6_card_name = "GX+";
582 sprintf(info->fix.id, "%s %s", cg6_card_name, cg6_cpu_name);
583 info->fix.id[sizeof(info->fix.id)-1] = 0;
585 info->fix.type = FB_TYPE_PACKED_PIXELS;
586 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
588 info->fix.line_length = linebytes;
590 info->fix.accel = FB_ACCEL_SUN_CGSIX;
593 /* Initialize Brooktree DAC */
594 static void cg6_bt_init(struct cg6_par *par)
596 struct bt_regs __iomem *bt = par->bt;
598 sbus_writel(0x04 << 24, &bt->addr); /* color planes */
599 sbus_writel(0xff << 24, &bt->control);
600 sbus_writel(0x05 << 24, &bt->addr);
601 sbus_writel(0x00 << 24, &bt->control);
602 sbus_writel(0x06 << 24, &bt->addr); /* overlay plane */
603 sbus_writel(0x73 << 24, &bt->control);
604 sbus_writel(0x07 << 24, &bt->addr);
605 sbus_writel(0x00 << 24, &bt->control);
608 static void cg6_chip_init(struct fb_info *info)
610 struct cg6_par *par = (struct cg6_par *) info->par;
611 struct cg6_tec __iomem *tec = par->tec;
612 struct cg6_fbc __iomem *fbc = par->fbc;
613 u32 rev, conf, mode, tmp;
616 /* Turn off stuff in the Transform Engine. */
617 sbus_writel(0, &tec->tec_matrix);
618 sbus_writel(0, &tec->tec_clip);
619 sbus_writel(0, &tec->tec_vdc);
621 /* Take care of bugs in old revisions. */
622 rev = (sbus_readl(par->fhc) >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK;
624 conf = (sbus_readl(par->fhc) & CG6_FHC_RES_MASK) |
625 CG6_FHC_CPU_68020 | CG6_FHC_TEST |
626 (11 << CG6_FHC_TEST_X_SHIFT) |
627 (11 << CG6_FHC_TEST_Y_SHIFT);
629 conf |= CG6_FHC_DST_DISABLE;
630 sbus_writel(conf, par->fhc);
633 /* Set things in the FBC. Bad things appear to happen if we do
634 * back to back store/loads on the mode register, so copy it
636 mode = sbus_readl(&fbc->mode);
638 i = sbus_readl(&fbc->s);
639 } while (i & 0x10000000);
640 mode &= ~(CG6_FBC_BLIT_MASK | CG6_FBC_MODE_MASK |
641 CG6_FBC_DRAW_MASK | CG6_FBC_BWRITE0_MASK |
642 CG6_FBC_BWRITE1_MASK | CG6_FBC_BREAD_MASK |
644 mode |= (CG6_FBC_BLIT_SRC | CG6_FBC_MODE_COLOR8 |
645 CG6_FBC_DRAW_RENDER | CG6_FBC_BWRITE0_ENABLE |
646 CG6_FBC_BWRITE1_DISABLE | CG6_FBC_BREAD_0 |
648 sbus_writel(mode, &fbc->mode);
650 sbus_writel(0, &fbc->clip);
651 sbus_writel(0, &fbc->offx);
652 sbus_writel(0, &fbc->offy);
653 sbus_writel(0, &fbc->clipminx);
654 sbus_writel(0, &fbc->clipminy);
655 sbus_writel(info->var.xres - 1, &fbc->clipmaxx);
656 sbus_writel(info->var.yres - 1, &fbc->clipmaxy);
658 /* Disable cursor in Brooktree DAC. */
659 sbus_writel(0x06 << 24, &par->bt->addr);
660 tmp = sbus_readl(&par->bt->control);
661 tmp &= ~(0x03 << 24);
662 sbus_writel(tmp, &par->bt->control);
668 struct list_head list;
670 static LIST_HEAD(cg6_list);
672 static void cg6_init_one(struct sbus_dev *sdev)
674 struct all_info *all;
677 all = kmalloc(sizeof(*all), GFP_KERNEL);
679 printk(KERN_ERR "cg6: Cannot allocate memory.\n");
682 memset(all, 0, sizeof(*all));
684 INIT_LIST_HEAD(&all->list);
686 spin_lock_init(&all->par.lock);
687 all->par.sdev = sdev;
689 all->par.physbase = sdev->reg_addrs[0].phys_addr;
691 sbusfb_fill_var(&all->info.var, sdev->prom_node, 8);
692 all->info.var.red.length = 8;
693 all->info.var.green.length = 8;
694 all->info.var.blue.length = 8;
696 linebytes = prom_getintdefault(sdev->prom_node, "linebytes",
698 all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);
699 if (prom_getbool(sdev->prom_node, "dblbuf"))
700 all->par.fbsize *= 4;
702 all->par.fbc = sbus_ioremap(&sdev->resource[0], CG6_FBC_OFFSET,
704 all->par.tec = sbus_ioremap(&sdev->resource[0], CG6_TEC_OFFSET,
705 sizeof(struct cg6_tec), "cgsix tec");
706 all->par.thc = sbus_ioremap(&sdev->resource[0], CG6_THC_OFFSET,
707 sizeof(struct cg6_thc), "cgsix thc");
708 all->par.bt = sbus_ioremap(&sdev->resource[0], CG6_BROOKTREE_OFFSET,
709 sizeof(struct bt_regs), "cgsix dac");
710 all->par.fhc = sbus_ioremap(&sdev->resource[0], CG6_FHC_OFFSET,
711 sizeof(u32), "cgsix fhc");
713 all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_IMAGEBLIT |
714 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
715 all->info.fbops = &cg6_ops;
716 #ifdef CONFIG_SPARC32
717 all->info.screen_base = (char __iomem *)
718 prom_getintdefault(sdev->prom_node, "address", 0);
720 if (!all->info.screen_base)
721 all->info.screen_base =
722 sbus_ioremap(&sdev->resource[0], CG6_RAM_OFFSET,
723 all->par.fbsize, "cgsix ram");
724 all->info.par = &all->par;
726 all->info.var.accel_flags = FB_ACCELF_TEXT;
728 cg6_bt_init(&all->par);
729 cg6_chip_init(&all->info);
730 cg6_blank(0, &all->info);
732 if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {
733 printk(KERN_ERR "cg6: Could not allocate color map.\n");
738 fb_set_cmap(&all->info.cmap, &all->info);
739 cg6_init_fix(&all->info, linebytes);
741 if (register_framebuffer(&all->info) < 0) {
742 printk(KERN_ERR "cg6: Could not register framebuffer.\n");
743 fb_dealloc_cmap(&all->info.cmap);
748 list_add(&all->list, &cg6_list);
750 printk("cg6: CGsix [%s] at %lx:%lx\n",
752 (long) sdev->reg_addrs[0].which_io,
753 (long) sdev->reg_addrs[0].phys_addr);
756 int __init cg6_init(void)
758 struct sbus_bus *sbus;
759 struct sbus_dev *sdev;
761 if (fb_get_options("cg6fb", NULL))
764 for_all_sbusdev(sdev, sbus) {
765 if (!strcmp(sdev->prom_name, "cgsix") ||
766 !strcmp(sdev->prom_name, "cgthree+"))
773 void __exit cg6_exit(void)
775 struct list_head *pos, *tmp;
777 list_for_each_safe(pos, tmp, &cg6_list) {
778 struct all_info *all = list_entry(pos, typeof(*all), list);
780 unregister_framebuffer(&all->info);
781 fb_dealloc_cmap(&all->info.cmap);
789 /* No cmdline options yet... */
793 module_init(cg6_init);
796 module_exit(cg6_exit);
799 MODULE_DESCRIPTION("framebuffer driver for CGsix chipsets");
800 MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
801 MODULE_LICENSE("GPL");