blob: 13fea61d6ae4cbf2bcdbca442eab84716e6e3499 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* leo.c: LEO frame buffer driver
2 *
David S. Miller50312ce2006-06-29 14:35:52 -07003 * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 * Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz)
5 * Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz)
6 *
7 * Driver layout based loosely on tgafb.c, see that file for credits.
8 */
9
10#include <linux/module.h>
11#include <linux/kernel.h>
12#include <linux/errno.h>
13#include <linux/string.h>
14#include <linux/slab.h>
15#include <linux/delay.h>
16#include <linux/init.h>
17#include <linux/fb.h>
18#include <linux/mm.h>
Robert Reif6cd5a862008-05-08 21:37:30 -070019#include <linux/of_device.h>
Robert Reif738eca72008-06-10 14:13:09 -070020#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <asm/fbio.h>
23
24#include "sbuslib.h"
25
26/*
27 * Local functions.
28 */
29
30static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned,
31 unsigned, struct fb_info *);
32static int leo_blank(int, struct fb_info *);
33
Christoph Hellwig216d5262006-01-14 13:21:25 -080034static int leo_mmap(struct fb_info *, struct vm_area_struct *);
Christoph Hellwig67a66802006-01-14 13:21:25 -080035static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
37/*
38 * Frame buffer operations
39 */
40
41static struct fb_ops leo_ops = {
42 .owner = THIS_MODULE,
43 .fb_setcolreg = leo_setcolreg,
44 .fb_blank = leo_blank,
Linus Torvalds1da177e2005-04-16 15:20:36 -070045 .fb_fillrect = cfb_fillrect,
46 .fb_copyarea = cfb_copyarea,
47 .fb_imageblit = cfb_imageblit,
48 .fb_mmap = leo_mmap,
49 .fb_ioctl = leo_ioctl,
Christoph Hellwig9ffb83b2005-11-12 12:11:12 -080050#ifdef CONFIG_COMPAT
51 .fb_compat_ioctl = sbusfb_compat_ioctl,
52#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070053};
54
55#define LEO_OFF_LC_SS0_KRN 0x00200000UL
56#define LEO_OFF_LC_SS0_USR 0x00201000UL
57#define LEO_OFF_LC_SS1_KRN 0x01200000UL
58#define LEO_OFF_LC_SS1_USR 0x01201000UL
59#define LEO_OFF_LD_SS0 0x00400000UL
60#define LEO_OFF_LD_SS1 0x01400000UL
61#define LEO_OFF_LD_GBL 0x00401000UL
62#define LEO_OFF_LX_KRN 0x00600000UL
63#define LEO_OFF_LX_CURSOR 0x00601000UL
64#define LEO_OFF_SS0 0x00800000UL
65#define LEO_OFF_SS1 0x01800000UL
66#define LEO_OFF_UNK 0x00602000UL
67#define LEO_OFF_UNK2 0x00000000UL
68
69#define LEO_CUR_ENABLE 0x00000080
70#define LEO_CUR_UPDATE 0x00000030
71#define LEO_CUR_PROGRESS 0x00000006
72#define LEO_CUR_UPDATECMAP 0x00000003
73
74#define LEO_CUR_TYPE_MASK 0x00000000
75#define LEO_CUR_TYPE_IMAGE 0x00000020
76#define LEO_CUR_TYPE_CMAP 0x00000050
77
78struct leo_cursor {
Robert Reif738eca72008-06-10 14:13:09 -070079 u8 xxx0[16];
David S. Miller50312ce2006-06-29 14:35:52 -070080 u32 cur_type;
81 u32 cur_misc;
82 u32 cur_cursxy;
83 u32 cur_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -070084};
85
86#define LEO_KRN_TYPE_CLUT0 0x00001000
87#define LEO_KRN_TYPE_CLUT1 0x00001001
88#define LEO_KRN_TYPE_CLUT2 0x00001002
89#define LEO_KRN_TYPE_WID 0x00001003
90#define LEO_KRN_TYPE_UNK 0x00001006
91#define LEO_KRN_TYPE_VIDEO 0x00002003
92#define LEO_KRN_TYPE_CLUTDATA 0x00004000
93#define LEO_KRN_CSR_ENABLE 0x00000008
94#define LEO_KRN_CSR_PROGRESS 0x00000004
95#define LEO_KRN_CSR_UNK 0x00000002
96#define LEO_KRN_CSR_UNK2 0x00000001
97
98struct leo_lx_krn {
David S. Miller50312ce2006-06-29 14:35:52 -070099 u32 krn_type;
100 u32 krn_csr;
101 u32 krn_value;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102};
103
104struct leo_lc_ss0_krn {
David S. Miller50312ce2006-06-29 14:35:52 -0700105 u32 misc;
Robert Reif738eca72008-06-10 14:13:09 -0700106 u8 xxx0[0x800-4];
David S. Miller50312ce2006-06-29 14:35:52 -0700107 u32 rev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108};
109
110struct leo_lc_ss0_usr {
David S. Miller50312ce2006-06-29 14:35:52 -0700111 u32 csr;
112 u32 addrspace;
113 u32 fontmsk;
114 u32 fontt;
115 u32 extent;
116 u32 src;
Robert Reif738eca72008-06-10 14:13:09 -0700117 u32 dst;
David S. Miller50312ce2006-06-29 14:35:52 -0700118 u32 copy;
119 u32 fill;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120};
121
122struct leo_lc_ss1_krn {
123 u8 unknown;
124};
125
126struct leo_lc_ss1_usr {
127 u8 unknown;
128};
129
Robert Reif738eca72008-06-10 14:13:09 -0700130struct leo_ld_ss0 {
131 u8 xxx0[0xe00];
David S. Miller50312ce2006-06-29 14:35:52 -0700132 u32 csr;
133 u32 wid;
134 u32 wmask;
135 u32 widclip;
136 u32 vclipmin;
137 u32 vclipmax;
138 u32 pickmin; /* SS1 only */
139 u32 pickmax; /* SS1 only */
140 u32 fg;
141 u32 bg;
142 u32 src; /* Copy/Scroll (SS0 only) */
143 u32 dst; /* Copy/Scroll/Fill (SS0 only) */
144 u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
Robert Reif738eca72008-06-10 14:13:09 -0700145 u32 xxx1[3];
David S. Miller50312ce2006-06-29 14:35:52 -0700146 u32 setsem; /* SS1 only */
147 u32 clrsem; /* SS1 only */
148 u32 clrpick; /* SS1 only */
149 u32 clrdat; /* SS1 only */
150 u32 alpha; /* SS1 only */
Robert Reif738eca72008-06-10 14:13:09 -0700151 u8 xxx2[0x2c];
David S. Miller50312ce2006-06-29 14:35:52 -0700152 u32 winbg;
153 u32 planemask;
154 u32 rop;
155 u32 z;
156 u32 dczf; /* SS1 only */
157 u32 dczb; /* SS1 only */
158 u32 dcs; /* SS1 only */
159 u32 dczs; /* SS1 only */
160 u32 pickfb; /* SS1 only */
161 u32 pickbb; /* SS1 only */
162 u32 dcfc; /* SS1 only */
163 u32 forcecol; /* SS1 only */
164 u32 door[8]; /* SS1 only */
165 u32 pick[5]; /* SS1 only */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166};
167
168#define LEO_SS1_MISC_ENABLE 0x00000001
169#define LEO_SS1_MISC_STEREO 0x00000002
170struct leo_ld_ss1 {
David S. Miller50312ce2006-06-29 14:35:52 -0700171 u8 xxx0[0xef4];
172 u32 ss1_misc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173};
174
175struct leo_ld_gbl {
176 u8 unknown;
177};
178
179struct leo_par {
180 spinlock_t lock;
181 struct leo_lx_krn __iomem *lx_krn;
182 struct leo_lc_ss0_usr __iomem *lc_ss0_usr;
183 struct leo_ld_ss0 __iomem *ld_ss0;
184 struct leo_ld_ss1 __iomem *ld_ss1;
185 struct leo_cursor __iomem *cursor;
186 u32 extent;
187 u32 clut_data[256];
188
189 u32 flags;
190#define LEO_FLAG_BLANKED 0x00000001
191
192 unsigned long physbase;
David S. Miller50312ce2006-06-29 14:35:52 -0700193 unsigned long which_io;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 unsigned long fbsize;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195};
196
197static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
198{
199 int i;
Robert Reif738eca72008-06-10 14:13:09 -0700200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 for (i = 0;
Robert Reif738eca72008-06-10 14:13:09 -0700202 (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
203 i < 300000;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 i++)
Robert Reif738eca72008-06-10 14:13:09 -0700205 udelay(1); /* Busy wait at most 0.3 sec */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 return;
207}
208
209/**
210 * leo_setcolreg - Optional function. Sets a color register.
211 * @regno: boolean, 0 copy local, 1 get_user() function
212 * @red: frame buffer colormap structure
213 * @green: The green value which can be up to 16 bits wide
214 * @blue: The blue value which can be up to 16 bits wide.
215 * @transp: If supported the alpha value which can be up to 16 bits wide.
216 * @info: frame buffer info structure
217 */
218static int leo_setcolreg(unsigned regno,
219 unsigned red, unsigned green, unsigned blue,
220 unsigned transp, struct fb_info *info)
221{
222 struct leo_par *par = (struct leo_par *) info->par;
Robert Reif738eca72008-06-10 14:13:09 -0700223 struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 unsigned long flags;
225 u32 val;
226 int i;
227
228 if (regno >= 256)
229 return 1;
230
231 red >>= 8;
232 green >>= 8;
233 blue >>= 8;
234
235 par->clut_data[regno] = red | (green << 8) | (blue << 16);
236
237 spin_lock_irqsave(&par->lock, flags);
238
239 leo_wait(lx_krn);
240
241 sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type);
242 for (i = 0; i < 256; i++)
243 sbus_writel(par->clut_data[i], &lx_krn->krn_value);
244 sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type);
245
246 val = sbus_readl(&lx_krn->krn_csr);
247 val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2);
248 sbus_writel(val, &lx_krn->krn_csr);
249
250 spin_unlock_irqrestore(&par->lock, flags);
251
252 return 0;
253}
254
255/**
256 * leo_blank - Optional function. Blanks the display.
257 * @blank_mode: the blank mode we want.
258 * @info: frame buffer structure that represents a single frame buffer
259 */
260static int leo_blank(int blank, struct fb_info *info)
261{
262 struct leo_par *par = (struct leo_par *) info->par;
263 struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
264 unsigned long flags;
265 u32 val;
266
267 spin_lock_irqsave(&par->lock, flags);
268
269 switch (blank) {
270 case FB_BLANK_UNBLANK: /* Unblanking */
271 val = sbus_readl(&lx_krn->krn_csr);
272 val |= LEO_KRN_CSR_ENABLE;
273 sbus_writel(val, &lx_krn->krn_csr);
274 par->flags &= ~LEO_FLAG_BLANKED;
275 break;
276
277 case FB_BLANK_NORMAL: /* Normal blanking */
278 case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */
279 case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */
280 case FB_BLANK_POWERDOWN: /* Poweroff */
281 val = sbus_readl(&lx_krn->krn_csr);
282 val &= ~LEO_KRN_CSR_ENABLE;
283 sbus_writel(val, &lx_krn->krn_csr);
284 par->flags |= LEO_FLAG_BLANKED;
285 break;
286 }
287
288 spin_unlock_irqrestore(&par->lock, flags);
289
290 return 0;
291}
292
293static struct sbus_mmap_map leo_mmap_map[] = {
294 {
295 .voff = LEO_SS0_MAP,
296 .poff = LEO_OFF_SS0,
297 .size = 0x800000
298 },
299 {
300 .voff = LEO_LC_SS0_USR_MAP,
301 .poff = LEO_OFF_LC_SS0_USR,
302 .size = 0x1000
303 },
304 {
305 .voff = LEO_LD_SS0_MAP,
306 .poff = LEO_OFF_LD_SS0,
307 .size = 0x1000
308 },
309 {
310 .voff = LEO_LX_CURSOR_MAP,
311 .poff = LEO_OFF_LX_CURSOR,
312 .size = 0x1000
313 },
314 {
315 .voff = LEO_SS1_MAP,
316 .poff = LEO_OFF_SS1,
317 .size = 0x800000
318 },
319 {
320 .voff = LEO_LC_SS1_USR_MAP,
321 .poff = LEO_OFF_LC_SS1_USR,
322 .size = 0x1000
323 },
324 {
325 .voff = LEO_LD_SS1_MAP,
326 .poff = LEO_OFF_LD_SS1,
327 .size = 0x1000
328 },
329 {
330 .voff = LEO_UNK_MAP,
331 .poff = LEO_OFF_UNK,
332 .size = 0x1000
333 },
334 {
335 .voff = LEO_LX_KRN_MAP,
336 .poff = LEO_OFF_LX_KRN,
337 .size = 0x1000
338 },
339 {
340 .voff = LEO_LC_SS0_KRN_MAP,
341 .poff = LEO_OFF_LC_SS0_KRN,
342 .size = 0x1000
343 },
344 {
345 .voff = LEO_LC_SS1_KRN_MAP,
346 .poff = LEO_OFF_LC_SS1_KRN,
347 .size = 0x1000
348 },
349 {
350 .voff = LEO_LD_GBL_MAP,
351 .poff = LEO_OFF_LD_GBL,
352 .size = 0x1000
353 },
354 {
355 .voff = LEO_UNK2_MAP,
356 .poff = LEO_OFF_UNK2,
357 .size = 0x100000
358 },
359 { .size = 0 }
360};
361
Christoph Hellwig216d5262006-01-14 13:21:25 -0800362static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363{
364 struct leo_par *par = (struct leo_par *)info->par;
365
366 return sbusfb_mmap_helper(leo_mmap_map,
367 par->physbase, par->fbsize,
David S. Miller50312ce2006-06-29 14:35:52 -0700368 par->which_io, vma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369}
370
Christoph Hellwig67a66802006-01-14 13:21:25 -0800371static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372{
373 struct leo_par *par = (struct leo_par *) info->par;
374
375 return sbusfb_ioctl_helper(cmd, arg, info,
376 FBTYPE_SUNLEO, 32, par->fbsize);
377}
378
379/*
380 * Initialisation
381 */
382
383static void
David S. Miller50312ce2006-06-29 14:35:52 -0700384leo_init_fix(struct fb_info *info, struct device_node *dp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385{
David S. Miller50312ce2006-06-29 14:35:52 -0700386 strlcpy(info->fix.id, dp->name, sizeof(info->fix.id));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
388 info->fix.type = FB_TYPE_PACKED_PIXELS;
389 info->fix.visual = FB_VISUAL_TRUECOLOR;
390
391 info->fix.line_length = 8192;
392
393 info->fix.accel = FB_ACCEL_SUN_LEO;
394}
395
396static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl)
397{
398 struct leo_par *par = (struct leo_par *) info->par;
399 struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
400 struct fb_wid_item *wi;
401 unsigned long flags;
402 u32 val;
403 int i, j;
404
405 spin_lock_irqsave(&par->lock, flags);
406
407 leo_wait(lx_krn);
408
409 for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
Robert Reif738eca72008-06-10 14:13:09 -0700410 switch (wi->wi_type) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 case FB_WID_DBL_8:
412 j = (wi->wi_index & 0xf) + 0x40;
413 break;
414
415 case FB_WID_DBL_24:
416 j = wi->wi_index & 0x3f;
417 break;
418
419 default:
420 continue;
421 };
422 sbus_writel(0x5800 + j, &lx_krn->krn_type);
423 sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
424 }
425 sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type);
426
427 val = sbus_readl(&lx_krn->krn_csr);
428 val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2);
429 sbus_writel(val, &lx_krn->krn_csr);
430
431 spin_unlock_irqrestore(&par->lock, flags);
432}
433
434static void leo_init_wids(struct fb_info *info)
435{
436 struct fb_wid_item wi;
437 struct fb_wid_list wl;
438
439 wl.wl_count = 1;
440 wl.wl_list = &wi;
441 wi.wi_type = FB_WID_DBL_8;
442 wi.wi_index = 0;
443 wi.wi_values [0] = 0x2c0;
444 leo_wid_put(info, &wl);
445 wi.wi_index = 1;
446 wi.wi_values [0] = 0x30;
447 leo_wid_put(info, &wl);
448 wi.wi_index = 2;
449 wi.wi_values [0] = 0x20;
450 leo_wid_put(info, &wl);
451 wi.wi_type = FB_WID_DBL_24;
452 wi.wi_index = 1;
453 wi.wi_values [0] = 0x30;
454 leo_wid_put(info, &wl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455}
456
457static void leo_switch_from_graph(struct fb_info *info)
458{
459 struct leo_par *par = (struct leo_par *) info->par;
Robert Reif738eca72008-06-10 14:13:09 -0700460 struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 unsigned long flags;
462 u32 val;
463
464 spin_lock_irqsave(&par->lock, flags);
465
466 par->extent = ((info->var.xres - 1) |
467 ((info->var.yres - 1) << 16));
468
469 sbus_writel(0xffffffff, &ss->wid);
470 sbus_writel(0xffff, &ss->wmask);
471 sbus_writel(0, &ss->vclipmin);
472 sbus_writel(par->extent, &ss->vclipmax);
473 sbus_writel(0, &ss->fg);
474 sbus_writel(0xff000000, &ss->planemask);
475 sbus_writel(0x310850, &ss->rop);
476 sbus_writel(0, &ss->widclip);
477 sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11),
478 &par->lc_ss0_usr->extent);
479 sbus_writel(4, &par->lc_ss0_usr->addrspace);
480 sbus_writel(0x80000000, &par->lc_ss0_usr->fill);
481 sbus_writel(0, &par->lc_ss0_usr->fontt);
482 do {
483 val = sbus_readl(&par->lc_ss0_usr->csr);
484 } while (val & 0x20000000);
485
Robert Reif738eca72008-06-10 14:13:09 -0700486 /* setup screen buffer for cfb_* functions */
487 sbus_writel(1, &ss->wid);
488 sbus_writel(0x00ffffff, &ss->planemask);
489 sbus_writel(0x310b90, &ss->rop);
490 sbus_writel(0, &par->lc_ss0_usr->addrspace);
491
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 spin_unlock_irqrestore(&par->lock, flags);
493}
494
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495static void leo_init_hw(struct fb_info *info)
496{
497 struct leo_par *par = (struct leo_par *) info->par;
498 u32 val;
499
500 val = sbus_readl(&par->ld_ss1->ss1_misc);
501 val |= LEO_SS1_MISC_ENABLE;
502 sbus_writel(val, &par->ld_ss1->ss1_misc);
503
504 leo_switch_from_graph(info);
505}
506
507static void leo_fixup_var_rgb(struct fb_var_screeninfo *var)
508{
509 var->red.offset = 0;
510 var->red.length = 8;
511 var->green.offset = 8;
512 var->green.length = 8;
513 var->blue.offset = 16;
514 var->blue.length = 8;
515 var->transp.offset = 0;
516 var->transp.length = 0;
517}
518
David S. Millerc7f439b2007-07-27 22:31:46 -0700519static void leo_unmap_regs(struct of_device *op, struct fb_info *info,
520 struct leo_par *par)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521{
David S. Millerc7f439b2007-07-27 22:31:46 -0700522 if (par->lc_ss0_usr)
523 of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000);
524 if (par->ld_ss0)
525 of_iounmap(&op->resource[0], par->ld_ss0, 0x1000);
526 if (par->ld_ss1)
527 of_iounmap(&op->resource[0], par->ld_ss1, 0x1000);
528 if (par->lx_krn)
529 of_iounmap(&op->resource[0], par->lx_krn, 0x1000);
530 if (par->cursor)
David S. Millere3a411a32006-12-28 21:01:32 -0800531 of_iounmap(&op->resource[0],
David S. Millerc7f439b2007-07-27 22:31:46 -0700532 par->cursor, sizeof(struct leo_cursor));
533 if (info->screen_base)
534 of_iounmap(&op->resource[0], info->screen_base, 0x800000);
David S. Miller50312ce2006-06-29 14:35:52 -0700535}
536
Robert Reif738eca72008-06-10 14:13:09 -0700537static int __devinit leo_probe(struct of_device *op,
538 const struct of_device_id *match)
David S. Miller50312ce2006-06-29 14:35:52 -0700539{
540 struct device_node *dp = op->node;
David S. Millerc7f439b2007-07-27 22:31:46 -0700541 struct fb_info *info;
542 struct leo_par *par;
David S. Miller50312ce2006-06-29 14:35:52 -0700543 int linebytes, err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
David S. Millerc7f439b2007-07-27 22:31:46 -0700545 info = framebuffer_alloc(sizeof(struct leo_par), &op->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546
David S. Millerc7f439b2007-07-27 22:31:46 -0700547 err = -ENOMEM;
548 if (!info)
549 goto out_err;
550 par = info->par;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
David S. Millerc7f439b2007-07-27 22:31:46 -0700552 spin_lock_init(&par->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553
David S. Millerc7f439b2007-07-27 22:31:46 -0700554 par->physbase = op->resource[0].start;
555 par->which_io = op->resource[0].flags & IORESOURCE_BITS;
556
Robert Reif6cd5a862008-05-08 21:37:30 -0700557 sbusfb_fill_var(&info->var, dp, 32);
David S. Millerc7f439b2007-07-27 22:31:46 -0700558 leo_fixup_var_rgb(&info->var);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559
David S. Miller50312ce2006-06-29 14:35:52 -0700560 linebytes = of_getintprop_default(dp, "linebytes",
David S. Millerc7f439b2007-07-27 22:31:46 -0700561 info->var.xres);
562 par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563
David S. Millerc7f439b2007-07-27 22:31:46 -0700564 par->lc_ss0_usr =
David S. Miller50312ce2006-06-29 14:35:52 -0700565 of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
566 0x1000, "leolc ss0usr");
David S. Millerc7f439b2007-07-27 22:31:46 -0700567 par->ld_ss0 =
David S. Miller50312ce2006-06-29 14:35:52 -0700568 of_ioremap(&op->resource[0], LEO_OFF_LD_SS0,
569 0x1000, "leold ss0");
David S. Millerc7f439b2007-07-27 22:31:46 -0700570 par->ld_ss1 =
David S. Miller50312ce2006-06-29 14:35:52 -0700571 of_ioremap(&op->resource[0], LEO_OFF_LD_SS1,
572 0x1000, "leold ss1");
David S. Millerc7f439b2007-07-27 22:31:46 -0700573 par->lx_krn =
David S. Miller50312ce2006-06-29 14:35:52 -0700574 of_ioremap(&op->resource[0], LEO_OFF_LX_KRN,
575 0x1000, "leolx krn");
David S. Millerc7f439b2007-07-27 22:31:46 -0700576 par->cursor =
David S. Miller50312ce2006-06-29 14:35:52 -0700577 of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR,
578 sizeof(struct leo_cursor), "leolx cursor");
David S. Millerc7f439b2007-07-27 22:31:46 -0700579 info->screen_base =
David S. Miller50312ce2006-06-29 14:35:52 -0700580 of_ioremap(&op->resource[0], LEO_OFF_SS0,
581 0x800000, "leo ram");
David S. Millerc7f439b2007-07-27 22:31:46 -0700582 if (!par->lc_ss0_usr ||
583 !par->ld_ss0 ||
584 !par->ld_ss1 ||
585 !par->lx_krn ||
586 !par->cursor ||
587 !info->screen_base)
588 goto out_unmap_regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589
Robert Reif738eca72008-06-10 14:13:09 -0700590 info->flags = FBINFO_DEFAULT;
David S. Millerc7f439b2007-07-27 22:31:46 -0700591 info->fbops = &leo_ops;
Robert Reif738eca72008-06-10 14:13:09 -0700592 info->pseudo_palette = par->clut_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593
David S. Millerc7f439b2007-07-27 22:31:46 -0700594 leo_init_wids(info);
595 leo_init_hw(info);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596
Robert Reif59f71372008-05-03 21:12:00 -0700597 leo_blank(FB_BLANK_UNBLANK, info);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598
David S. Millerc7f439b2007-07-27 22:31:46 -0700599 if (fb_alloc_cmap(&info->cmap, 256, 0))
600 goto out_unmap_regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601
David S. Millerc7f439b2007-07-27 22:31:46 -0700602 leo_init_fix(info, dp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603
David S. Millerc7f439b2007-07-27 22:31:46 -0700604 err = register_framebuffer(info);
605 if (err < 0)
606 goto out_dealloc_cmap;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607
David S. Millerc7f439b2007-07-27 22:31:46 -0700608 dev_set_drvdata(&op->dev, info);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609
Robert Reif194f1a682008-04-27 15:18:57 -0700610 printk(KERN_INFO "%s: leo at %lx:%lx\n",
David S. Miller50312ce2006-06-29 14:35:52 -0700611 dp->full_name,
David S. Millerc7f439b2007-07-27 22:31:46 -0700612 par->which_io, par->physbase);
David S. Miller50312ce2006-06-29 14:35:52 -0700613
614 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
David S. Millerc7f439b2007-07-27 22:31:46 -0700616out_dealloc_cmap:
617 fb_dealloc_cmap(&info->cmap);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618
David S. Millerc7f439b2007-07-27 22:31:46 -0700619out_unmap_regs:
620 leo_unmap_regs(op, info, par);
621 framebuffer_release(info);
622
623out_err:
624 return err;
David S. Miller50312ce2006-06-29 14:35:52 -0700625}
626
David S. Millere3a411a32006-12-28 21:01:32 -0800627static int __devexit leo_remove(struct of_device *op)
David S. Miller50312ce2006-06-29 14:35:52 -0700628{
David S. Millerc7f439b2007-07-27 22:31:46 -0700629 struct fb_info *info = dev_get_drvdata(&op->dev);
630 struct leo_par *par = info->par;
David S. Miller50312ce2006-06-29 14:35:52 -0700631
David S. Millerc7f439b2007-07-27 22:31:46 -0700632 unregister_framebuffer(info);
633 fb_dealloc_cmap(&info->cmap);
David S. Miller50312ce2006-06-29 14:35:52 -0700634
David S. Millerc7f439b2007-07-27 22:31:46 -0700635 leo_unmap_regs(op, info, par);
David S. Miller50312ce2006-06-29 14:35:52 -0700636
David S. Millerc7f439b2007-07-27 22:31:46 -0700637 framebuffer_release(info);
David S. Miller50312ce2006-06-29 14:35:52 -0700638
David S. Millere3a411a32006-12-28 21:01:32 -0800639 dev_set_drvdata(&op->dev, NULL);
David S. Miller50312ce2006-06-29 14:35:52 -0700640
641 return 0;
642}
643
644static struct of_device_id leo_match[] = {
645 {
Robert Reif738eca72008-06-10 14:13:09 -0700646 .name = "SUNW,leo",
David S. Miller50312ce2006-06-29 14:35:52 -0700647 },
648 {},
649};
650MODULE_DEVICE_TABLE(of, leo_match);
651
652static struct of_platform_driver leo_driver = {
653 .name = "leo",
654 .match_table = leo_match,
655 .probe = leo_probe,
656 .remove = __devexit_p(leo_remove),
657};
658
659static int __init leo_init(void)
660{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661 if (fb_get_options("leofb", NULL))
662 return -ENODEV;
663
David S. Miller50312ce2006-06-29 14:35:52 -0700664 return of_register_driver(&leo_driver, &of_bus_type);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665}
666
David S. Miller50312ce2006-06-29 14:35:52 -0700667static void __exit leo_exit(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668{
David S. Miller50312ce2006-06-29 14:35:52 -0700669 of_unregister_driver(&leo_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670}
671
672module_init(leo_init);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673module_exit(leo_exit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674
675MODULE_DESCRIPTION("framebuffer driver for LEO chipsets");
David S. Miller50312ce2006-06-29 14:35:52 -0700676MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
677MODULE_VERSION("2.0");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678MODULE_LICENSE("GPL");