diff options
Diffstat (limited to 'drivers/video/fbdev/leo.c')
-rw-r--r-- | drivers/video/fbdev/leo.c | 691 |
1 files changed, 691 insertions, 0 deletions
diff --git a/drivers/video/fbdev/leo.c b/drivers/video/fbdev/leo.c new file mode 100644 index 000000000000..2c7f7d479fe2 --- /dev/null +++ b/drivers/video/fbdev/leo.c | |||
@@ -0,0 +1,691 @@ | |||
1 | /* leo.c: LEO frame buffer driver | ||
2 | * | ||
3 | * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net) | ||
4 | * 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/delay.h> | ||
15 | #include <linux/init.h> | ||
16 | #include <linux/fb.h> | ||
17 | #include <linux/mm.h> | ||
18 | #include <linux/of_device.h> | ||
19 | #include <linux/io.h> | ||
20 | |||
21 | #include <asm/fbio.h> | ||
22 | |||
23 | #include "sbuslib.h" | ||
24 | |||
25 | /* | ||
26 | * Local functions. | ||
27 | */ | ||
28 | |||
29 | static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned, | ||
30 | unsigned, struct fb_info *); | ||
31 | static int leo_blank(int, struct fb_info *); | ||
32 | |||
33 | static int leo_mmap(struct fb_info *, struct vm_area_struct *); | ||
34 | static int leo_ioctl(struct fb_info *, unsigned int, unsigned long); | ||
35 | static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *); | ||
36 | |||
37 | /* | ||
38 | * Frame buffer operations | ||
39 | */ | ||
40 | |||
41 | static struct fb_ops leo_ops = { | ||
42 | .owner = THIS_MODULE, | ||
43 | .fb_setcolreg = leo_setcolreg, | ||
44 | .fb_blank = leo_blank, | ||
45 | .fb_pan_display = leo_pan_display, | ||
46 | .fb_fillrect = cfb_fillrect, | ||
47 | .fb_copyarea = cfb_copyarea, | ||
48 | .fb_imageblit = cfb_imageblit, | ||
49 | .fb_mmap = leo_mmap, | ||
50 | .fb_ioctl = leo_ioctl, | ||
51 | #ifdef CONFIG_COMPAT | ||
52 | .fb_compat_ioctl = sbusfb_compat_ioctl, | ||
53 | #endif | ||
54 | }; | ||
55 | |||
56 | #define LEO_OFF_LC_SS0_KRN 0x00200000UL | ||
57 | #define LEO_OFF_LC_SS0_USR 0x00201000UL | ||
58 | #define LEO_OFF_LC_SS1_KRN 0x01200000UL | ||
59 | #define LEO_OFF_LC_SS1_USR 0x01201000UL | ||
60 | #define LEO_OFF_LD_SS0 0x00400000UL | ||
61 | #define LEO_OFF_LD_SS1 0x01400000UL | ||
62 | #define LEO_OFF_LD_GBL 0x00401000UL | ||
63 | #define LEO_OFF_LX_KRN 0x00600000UL | ||
64 | #define LEO_OFF_LX_CURSOR 0x00601000UL | ||
65 | #define LEO_OFF_SS0 0x00800000UL | ||
66 | #define LEO_OFF_SS1 0x01800000UL | ||
67 | #define LEO_OFF_UNK 0x00602000UL | ||
68 | #define LEO_OFF_UNK2 0x00000000UL | ||
69 | |||
70 | #define LEO_CUR_ENABLE 0x00000080 | ||
71 | #define LEO_CUR_UPDATE 0x00000030 | ||
72 | #define LEO_CUR_PROGRESS 0x00000006 | ||
73 | #define LEO_CUR_UPDATECMAP 0x00000003 | ||
74 | |||
75 | #define LEO_CUR_TYPE_MASK 0x00000000 | ||
76 | #define LEO_CUR_TYPE_IMAGE 0x00000020 | ||
77 | #define LEO_CUR_TYPE_CMAP 0x00000050 | ||
78 | |||
79 | struct leo_cursor { | ||
80 | u8 xxx0[16]; | ||
81 | u32 cur_type; | ||
82 | u32 cur_misc; | ||
83 | u32 cur_cursxy; | ||
84 | u32 cur_data; | ||
85 | }; | ||
86 | |||
87 | #define LEO_KRN_TYPE_CLUT0 0x00001000 | ||
88 | #define LEO_KRN_TYPE_CLUT1 0x00001001 | ||
89 | #define LEO_KRN_TYPE_CLUT2 0x00001002 | ||
90 | #define LEO_KRN_TYPE_WID 0x00001003 | ||
91 | #define LEO_KRN_TYPE_UNK 0x00001006 | ||
92 | #define LEO_KRN_TYPE_VIDEO 0x00002003 | ||
93 | #define LEO_KRN_TYPE_CLUTDATA 0x00004000 | ||
94 | #define LEO_KRN_CSR_ENABLE 0x00000008 | ||
95 | #define LEO_KRN_CSR_PROGRESS 0x00000004 | ||
96 | #define LEO_KRN_CSR_UNK 0x00000002 | ||
97 | #define LEO_KRN_CSR_UNK2 0x00000001 | ||
98 | |||
99 | struct leo_lx_krn { | ||
100 | u32 krn_type; | ||
101 | u32 krn_csr; | ||
102 | u32 krn_value; | ||
103 | }; | ||
104 | |||
105 | struct leo_lc_ss0_krn { | ||
106 | u32 misc; | ||
107 | u8 xxx0[0x800-4]; | ||
108 | u32 rev; | ||
109 | }; | ||
110 | |||
111 | struct leo_lc_ss0_usr { | ||
112 | u32 csr; | ||
113 | u32 addrspace; | ||
114 | u32 fontmsk; | ||
115 | u32 fontt; | ||
116 | u32 extent; | ||
117 | u32 src; | ||
118 | u32 dst; | ||
119 | u32 copy; | ||
120 | u32 fill; | ||
121 | }; | ||
122 | |||
123 | struct leo_lc_ss1_krn { | ||
124 | u8 unknown; | ||
125 | }; | ||
126 | |||
127 | struct leo_lc_ss1_usr { | ||
128 | u8 unknown; | ||
129 | }; | ||
130 | |||
131 | struct leo_ld_ss0 { | ||
132 | u8 xxx0[0xe00]; | ||
133 | u32 csr; | ||
134 | u32 wid; | ||
135 | u32 wmask; | ||
136 | u32 widclip; | ||
137 | u32 vclipmin; | ||
138 | u32 vclipmax; | ||
139 | u32 pickmin; /* SS1 only */ | ||
140 | u32 pickmax; /* SS1 only */ | ||
141 | u32 fg; | ||
142 | u32 bg; | ||
143 | u32 src; /* Copy/Scroll (SS0 only) */ | ||
144 | u32 dst; /* Copy/Scroll/Fill (SS0 only) */ | ||
145 | u32 extent; /* Copy/Scroll/Fill size (SS0 only) */ | ||
146 | u32 xxx1[3]; | ||
147 | u32 setsem; /* SS1 only */ | ||
148 | u32 clrsem; /* SS1 only */ | ||
149 | u32 clrpick; /* SS1 only */ | ||
150 | u32 clrdat; /* SS1 only */ | ||
151 | u32 alpha; /* SS1 only */ | ||
152 | u8 xxx2[0x2c]; | ||
153 | u32 winbg; | ||
154 | u32 planemask; | ||
155 | u32 rop; | ||
156 | u32 z; | ||
157 | u32 dczf; /* SS1 only */ | ||
158 | u32 dczb; /* SS1 only */ | ||
159 | u32 dcs; /* SS1 only */ | ||
160 | u32 dczs; /* SS1 only */ | ||
161 | u32 pickfb; /* SS1 only */ | ||
162 | u32 pickbb; /* SS1 only */ | ||
163 | u32 dcfc; /* SS1 only */ | ||
164 | u32 forcecol; /* SS1 only */ | ||
165 | u32 door[8]; /* SS1 only */ | ||
166 | u32 pick[5]; /* SS1 only */ | ||
167 | }; | ||
168 | |||
169 | #define LEO_SS1_MISC_ENABLE 0x00000001 | ||
170 | #define LEO_SS1_MISC_STEREO 0x00000002 | ||
171 | struct leo_ld_ss1 { | ||
172 | u8 xxx0[0xef4]; | ||
173 | u32 ss1_misc; | ||
174 | }; | ||
175 | |||
176 | struct leo_ld_gbl { | ||
177 | u8 unknown; | ||
178 | }; | ||
179 | |||
180 | struct leo_par { | ||
181 | spinlock_t lock; | ||
182 | struct leo_lx_krn __iomem *lx_krn; | ||
183 | struct leo_lc_ss0_usr __iomem *lc_ss0_usr; | ||
184 | struct leo_ld_ss0 __iomem *ld_ss0; | ||
185 | struct leo_ld_ss1 __iomem *ld_ss1; | ||
186 | struct leo_cursor __iomem *cursor; | ||
187 | u32 extent; | ||
188 | u32 clut_data[256]; | ||
189 | |||
190 | u32 flags; | ||
191 | #define LEO_FLAG_BLANKED 0x00000001 | ||
192 | |||
193 | unsigned long which_io; | ||
194 | }; | ||
195 | |||
196 | static void leo_wait(struct leo_lx_krn __iomem *lx_krn) | ||
197 | { | ||
198 | int i; | ||
199 | |||
200 | for (i = 0; | ||
201 | (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && | ||
202 | i < 300000; | ||
203 | i++) | ||
204 | udelay(1); /* Busy wait at most 0.3 sec */ | ||
205 | return; | ||
206 | } | ||
207 | |||
208 | static void leo_switch_from_graph(struct fb_info *info) | ||
209 | { | ||
210 | struct leo_par *par = (struct leo_par *) info->par; | ||
211 | struct leo_ld_ss0 __iomem *ss = par->ld_ss0; | ||
212 | struct leo_cursor __iomem *cursor = par->cursor; | ||
213 | unsigned long flags; | ||
214 | u32 val; | ||
215 | |||
216 | spin_lock_irqsave(&par->lock, flags); | ||
217 | |||
218 | par->extent = ((info->var.xres - 1) | | ||
219 | ((info->var.yres - 1) << 16)); | ||
220 | |||
221 | sbus_writel(0xffffffff, &ss->wid); | ||
222 | sbus_writel(0xffff, &ss->wmask); | ||
223 | sbus_writel(0, &ss->vclipmin); | ||
224 | sbus_writel(par->extent, &ss->vclipmax); | ||
225 | sbus_writel(0, &ss->fg); | ||
226 | sbus_writel(0xff000000, &ss->planemask); | ||
227 | sbus_writel(0x310850, &ss->rop); | ||
228 | sbus_writel(0, &ss->widclip); | ||
229 | sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11), | ||
230 | &par->lc_ss0_usr->extent); | ||
231 | sbus_writel(4, &par->lc_ss0_usr->addrspace); | ||
232 | sbus_writel(0x80000000, &par->lc_ss0_usr->fill); | ||
233 | sbus_writel(0, &par->lc_ss0_usr->fontt); | ||
234 | do { | ||
235 | val = sbus_readl(&par->lc_ss0_usr->csr); | ||
236 | } while (val & 0x20000000); | ||
237 | |||
238 | /* setup screen buffer for cfb_* functions */ | ||
239 | sbus_writel(1, &ss->wid); | ||
240 | sbus_writel(0x00ffffff, &ss->planemask); | ||
241 | sbus_writel(0x310b90, &ss->rop); | ||
242 | sbus_writel(0, &par->lc_ss0_usr->addrspace); | ||
243 | |||
244 | /* hide cursor */ | ||
245 | sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc); | ||
246 | |||
247 | spin_unlock_irqrestore(&par->lock, flags); | ||
248 | } | ||
249 | |||
250 | static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) | ||
251 | { | ||
252 | /* We just use this to catch switches out of | ||
253 | * graphics mode. | ||
254 | */ | ||
255 | leo_switch_from_graph(info); | ||
256 | |||
257 | if (var->xoffset || var->yoffset || var->vmode) | ||
258 | return -EINVAL; | ||
259 | return 0; | ||
260 | } | ||
261 | |||
262 | /** | ||
263 | * leo_setcolreg - Optional function. Sets a color register. | ||
264 | * @regno: boolean, 0 copy local, 1 get_user() function | ||
265 | * @red: frame buffer colormap structure | ||
266 | * @green: The green value which can be up to 16 bits wide | ||
267 | * @blue: The blue value which can be up to 16 bits wide. | ||
268 | * @transp: If supported the alpha value which can be up to 16 bits wide. | ||
269 | * @info: frame buffer info structure | ||
270 | */ | ||
271 | static int leo_setcolreg(unsigned regno, | ||
272 | unsigned red, unsigned green, unsigned blue, | ||
273 | unsigned transp, struct fb_info *info) | ||
274 | { | ||
275 | struct leo_par *par = (struct leo_par *) info->par; | ||
276 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | ||
277 | unsigned long flags; | ||
278 | u32 val; | ||
279 | int i; | ||
280 | |||
281 | if (regno >= 256) | ||
282 | return 1; | ||
283 | |||
284 | red >>= 8; | ||
285 | green >>= 8; | ||
286 | blue >>= 8; | ||
287 | |||
288 | par->clut_data[regno] = red | (green << 8) | (blue << 16); | ||
289 | |||
290 | spin_lock_irqsave(&par->lock, flags); | ||
291 | |||
292 | leo_wait(lx_krn); | ||
293 | |||
294 | sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type); | ||
295 | for (i = 0; i < 256; i++) | ||
296 | sbus_writel(par->clut_data[i], &lx_krn->krn_value); | ||
297 | sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type); | ||
298 | |||
299 | val = sbus_readl(&lx_krn->krn_csr); | ||
300 | val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); | ||
301 | sbus_writel(val, &lx_krn->krn_csr); | ||
302 | |||
303 | spin_unlock_irqrestore(&par->lock, flags); | ||
304 | |||
305 | return 0; | ||
306 | } | ||
307 | |||
308 | /** | ||
309 | * leo_blank - Optional function. Blanks the display. | ||
310 | * @blank_mode: the blank mode we want. | ||
311 | * @info: frame buffer structure that represents a single frame buffer | ||
312 | */ | ||
313 | static int leo_blank(int blank, struct fb_info *info) | ||
314 | { | ||
315 | struct leo_par *par = (struct leo_par *) info->par; | ||
316 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | ||
317 | unsigned long flags; | ||
318 | u32 val; | ||
319 | |||
320 | spin_lock_irqsave(&par->lock, flags); | ||
321 | |||
322 | switch (blank) { | ||
323 | case FB_BLANK_UNBLANK: /* Unblanking */ | ||
324 | val = sbus_readl(&lx_krn->krn_csr); | ||
325 | val |= LEO_KRN_CSR_ENABLE; | ||
326 | sbus_writel(val, &lx_krn->krn_csr); | ||
327 | par->flags &= ~LEO_FLAG_BLANKED; | ||
328 | break; | ||
329 | |||
330 | case FB_BLANK_NORMAL: /* Normal blanking */ | ||
331 | case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ | ||
332 | case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ | ||
333 | case FB_BLANK_POWERDOWN: /* Poweroff */ | ||
334 | val = sbus_readl(&lx_krn->krn_csr); | ||
335 | val &= ~LEO_KRN_CSR_ENABLE; | ||
336 | sbus_writel(val, &lx_krn->krn_csr); | ||
337 | par->flags |= LEO_FLAG_BLANKED; | ||
338 | break; | ||
339 | } | ||
340 | |||
341 | spin_unlock_irqrestore(&par->lock, flags); | ||
342 | |||
343 | return 0; | ||
344 | } | ||
345 | |||
346 | static struct sbus_mmap_map leo_mmap_map[] = { | ||
347 | { | ||
348 | .voff = LEO_SS0_MAP, | ||
349 | .poff = LEO_OFF_SS0, | ||
350 | .size = 0x800000 | ||
351 | }, | ||
352 | { | ||
353 | .voff = LEO_LC_SS0_USR_MAP, | ||
354 | .poff = LEO_OFF_LC_SS0_USR, | ||
355 | .size = 0x1000 | ||
356 | }, | ||
357 | { | ||
358 | .voff = LEO_LD_SS0_MAP, | ||
359 | .poff = LEO_OFF_LD_SS0, | ||
360 | .size = 0x1000 | ||
361 | }, | ||
362 | { | ||
363 | .voff = LEO_LX_CURSOR_MAP, | ||
364 | .poff = LEO_OFF_LX_CURSOR, | ||
365 | .size = 0x1000 | ||
366 | }, | ||
367 | { | ||
368 | .voff = LEO_SS1_MAP, | ||
369 | .poff = LEO_OFF_SS1, | ||
370 | .size = 0x800000 | ||
371 | }, | ||
372 | { | ||
373 | .voff = LEO_LC_SS1_USR_MAP, | ||
374 | .poff = LEO_OFF_LC_SS1_USR, | ||
375 | .size = 0x1000 | ||
376 | }, | ||
377 | { | ||
378 | .voff = LEO_LD_SS1_MAP, | ||
379 | .poff = LEO_OFF_LD_SS1, | ||
380 | .size = 0x1000 | ||
381 | }, | ||
382 | { | ||
383 | .voff = LEO_UNK_MAP, | ||
384 | .poff = LEO_OFF_UNK, | ||
385 | .size = 0x1000 | ||
386 | }, | ||
387 | { | ||
388 | .voff = LEO_LX_KRN_MAP, | ||
389 | .poff = LEO_OFF_LX_KRN, | ||
390 | .size = 0x1000 | ||
391 | }, | ||
392 | { | ||
393 | .voff = LEO_LC_SS0_KRN_MAP, | ||
394 | .poff = LEO_OFF_LC_SS0_KRN, | ||
395 | .size = 0x1000 | ||
396 | }, | ||
397 | { | ||
398 | .voff = LEO_LC_SS1_KRN_MAP, | ||
399 | .poff = LEO_OFF_LC_SS1_KRN, | ||
400 | .size = 0x1000 | ||
401 | }, | ||
402 | { | ||
403 | .voff = LEO_LD_GBL_MAP, | ||
404 | .poff = LEO_OFF_LD_GBL, | ||
405 | .size = 0x1000 | ||
406 | }, | ||
407 | { | ||
408 | .voff = LEO_UNK2_MAP, | ||
409 | .poff = LEO_OFF_UNK2, | ||
410 | .size = 0x100000 | ||
411 | }, | ||
412 | { .size = 0 } | ||
413 | }; | ||
414 | |||
415 | static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma) | ||
416 | { | ||
417 | struct leo_par *par = (struct leo_par *)info->par; | ||
418 | |||
419 | return sbusfb_mmap_helper(leo_mmap_map, | ||
420 | info->fix.smem_start, info->fix.smem_len, | ||
421 | par->which_io, vma); | ||
422 | } | ||
423 | |||
424 | static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) | ||
425 | { | ||
426 | return sbusfb_ioctl_helper(cmd, arg, info, | ||
427 | FBTYPE_SUNLEO, 32, info->fix.smem_len); | ||
428 | } | ||
429 | |||
430 | /* | ||
431 | * Initialisation | ||
432 | */ | ||
433 | |||
434 | static void | ||
435 | leo_init_fix(struct fb_info *info, struct device_node *dp) | ||
436 | { | ||
437 | strlcpy(info->fix.id, dp->name, sizeof(info->fix.id)); | ||
438 | |||
439 | info->fix.type = FB_TYPE_PACKED_PIXELS; | ||
440 | info->fix.visual = FB_VISUAL_TRUECOLOR; | ||
441 | |||
442 | info->fix.line_length = 8192; | ||
443 | |||
444 | info->fix.accel = FB_ACCEL_SUN_LEO; | ||
445 | } | ||
446 | |||
447 | static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl) | ||
448 | { | ||
449 | struct leo_par *par = (struct leo_par *) info->par; | ||
450 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | ||
451 | struct fb_wid_item *wi; | ||
452 | unsigned long flags; | ||
453 | u32 val; | ||
454 | int i, j; | ||
455 | |||
456 | spin_lock_irqsave(&par->lock, flags); | ||
457 | |||
458 | leo_wait(lx_krn); | ||
459 | |||
460 | for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) { | ||
461 | switch (wi->wi_type) { | ||
462 | case FB_WID_DBL_8: | ||
463 | j = (wi->wi_index & 0xf) + 0x40; | ||
464 | break; | ||
465 | |||
466 | case FB_WID_DBL_24: | ||
467 | j = wi->wi_index & 0x3f; | ||
468 | break; | ||
469 | |||
470 | default: | ||
471 | continue; | ||
472 | } | ||
473 | sbus_writel(0x5800 + j, &lx_krn->krn_type); | ||
474 | sbus_writel(wi->wi_values[0], &lx_krn->krn_value); | ||
475 | } | ||
476 | sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type); | ||
477 | |||
478 | val = sbus_readl(&lx_krn->krn_csr); | ||
479 | val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); | ||
480 | sbus_writel(val, &lx_krn->krn_csr); | ||
481 | |||
482 | spin_unlock_irqrestore(&par->lock, flags); | ||
483 | } | ||
484 | |||
485 | static void leo_init_wids(struct fb_info *info) | ||
486 | { | ||
487 | struct fb_wid_item wi; | ||
488 | struct fb_wid_list wl; | ||
489 | |||
490 | wl.wl_count = 1; | ||
491 | wl.wl_list = &wi; | ||
492 | wi.wi_type = FB_WID_DBL_8; | ||
493 | wi.wi_index = 0; | ||
494 | wi.wi_values [0] = 0x2c0; | ||
495 | leo_wid_put(info, &wl); | ||
496 | wi.wi_index = 1; | ||
497 | wi.wi_values [0] = 0x30; | ||
498 | leo_wid_put(info, &wl); | ||
499 | wi.wi_index = 2; | ||
500 | wi.wi_values [0] = 0x20; | ||
501 | leo_wid_put(info, &wl); | ||
502 | wi.wi_type = FB_WID_DBL_24; | ||
503 | wi.wi_index = 1; | ||
504 | wi.wi_values [0] = 0x30; | ||
505 | leo_wid_put(info, &wl); | ||
506 | } | ||
507 | |||
508 | static void leo_init_hw(struct fb_info *info) | ||
509 | { | ||
510 | struct leo_par *par = (struct leo_par *) info->par; | ||
511 | u32 val; | ||
512 | |||
513 | val = sbus_readl(&par->ld_ss1->ss1_misc); | ||
514 | val |= LEO_SS1_MISC_ENABLE; | ||
515 | sbus_writel(val, &par->ld_ss1->ss1_misc); | ||
516 | |||
517 | leo_switch_from_graph(info); | ||
518 | } | ||
519 | |||
520 | static void leo_fixup_var_rgb(struct fb_var_screeninfo *var) | ||
521 | { | ||
522 | var->red.offset = 0; | ||
523 | var->red.length = 8; | ||
524 | var->green.offset = 8; | ||
525 | var->green.length = 8; | ||
526 | var->blue.offset = 16; | ||
527 | var->blue.length = 8; | ||
528 | var->transp.offset = 0; | ||
529 | var->transp.length = 0; | ||
530 | } | ||
531 | |||
532 | static void leo_unmap_regs(struct platform_device *op, struct fb_info *info, | ||
533 | struct leo_par *par) | ||
534 | { | ||
535 | if (par->lc_ss0_usr) | ||
536 | of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000); | ||
537 | if (par->ld_ss0) | ||
538 | of_iounmap(&op->resource[0], par->ld_ss0, 0x1000); | ||
539 | if (par->ld_ss1) | ||
540 | of_iounmap(&op->resource[0], par->ld_ss1, 0x1000); | ||
541 | if (par->lx_krn) | ||
542 | of_iounmap(&op->resource[0], par->lx_krn, 0x1000); | ||
543 | if (par->cursor) | ||
544 | of_iounmap(&op->resource[0], | ||
545 | par->cursor, sizeof(struct leo_cursor)); | ||
546 | if (info->screen_base) | ||
547 | of_iounmap(&op->resource[0], info->screen_base, 0x800000); | ||
548 | } | ||
549 | |||
550 | static int leo_probe(struct platform_device *op) | ||
551 | { | ||
552 | struct device_node *dp = op->dev.of_node; | ||
553 | struct fb_info *info; | ||
554 | struct leo_par *par; | ||
555 | int linebytes, err; | ||
556 | |||
557 | info = framebuffer_alloc(sizeof(struct leo_par), &op->dev); | ||
558 | |||
559 | err = -ENOMEM; | ||
560 | if (!info) | ||
561 | goto out_err; | ||
562 | par = info->par; | ||
563 | |||
564 | spin_lock_init(&par->lock); | ||
565 | |||
566 | info->fix.smem_start = op->resource[0].start; | ||
567 | par->which_io = op->resource[0].flags & IORESOURCE_BITS; | ||
568 | |||
569 | sbusfb_fill_var(&info->var, dp, 32); | ||
570 | leo_fixup_var_rgb(&info->var); | ||
571 | |||
572 | linebytes = of_getintprop_default(dp, "linebytes", | ||
573 | info->var.xres); | ||
574 | info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres); | ||
575 | |||
576 | par->lc_ss0_usr = | ||
577 | of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR, | ||
578 | 0x1000, "leolc ss0usr"); | ||
579 | par->ld_ss0 = | ||
580 | of_ioremap(&op->resource[0], LEO_OFF_LD_SS0, | ||
581 | 0x1000, "leold ss0"); | ||
582 | par->ld_ss1 = | ||
583 | of_ioremap(&op->resource[0], LEO_OFF_LD_SS1, | ||
584 | 0x1000, "leold ss1"); | ||
585 | par->lx_krn = | ||
586 | of_ioremap(&op->resource[0], LEO_OFF_LX_KRN, | ||
587 | 0x1000, "leolx krn"); | ||
588 | par->cursor = | ||
589 | of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR, | ||
590 | sizeof(struct leo_cursor), "leolx cursor"); | ||
591 | info->screen_base = | ||
592 | of_ioremap(&op->resource[0], LEO_OFF_SS0, | ||
593 | 0x800000, "leo ram"); | ||
594 | if (!par->lc_ss0_usr || | ||
595 | !par->ld_ss0 || | ||
596 | !par->ld_ss1 || | ||
597 | !par->lx_krn || | ||
598 | !par->cursor || | ||
599 | !info->screen_base) | ||
600 | goto out_unmap_regs; | ||
601 | |||
602 | info->flags = FBINFO_DEFAULT; | ||
603 | info->fbops = &leo_ops; | ||
604 | info->pseudo_palette = par->clut_data; | ||
605 | |||
606 | leo_init_wids(info); | ||
607 | leo_init_hw(info); | ||
608 | |||
609 | leo_blank(FB_BLANK_UNBLANK, info); | ||
610 | |||
611 | if (fb_alloc_cmap(&info->cmap, 256, 0)) | ||
612 | goto out_unmap_regs; | ||
613 | |||
614 | leo_init_fix(info, dp); | ||
615 | |||
616 | err = register_framebuffer(info); | ||
617 | if (err < 0) | ||
618 | goto out_dealloc_cmap; | ||
619 | |||
620 | dev_set_drvdata(&op->dev, info); | ||
621 | |||
622 | printk(KERN_INFO "%s: leo at %lx:%lx\n", | ||
623 | dp->full_name, | ||
624 | par->which_io, info->fix.smem_start); | ||
625 | |||
626 | return 0; | ||
627 | |||
628 | out_dealloc_cmap: | ||
629 | fb_dealloc_cmap(&info->cmap); | ||
630 | |||
631 | out_unmap_regs: | ||
632 | leo_unmap_regs(op, info, par); | ||
633 | framebuffer_release(info); | ||
634 | |||
635 | out_err: | ||
636 | return err; | ||
637 | } | ||
638 | |||
639 | static int leo_remove(struct platform_device *op) | ||
640 | { | ||
641 | struct fb_info *info = dev_get_drvdata(&op->dev); | ||
642 | struct leo_par *par = info->par; | ||
643 | |||
644 | unregister_framebuffer(info); | ||
645 | fb_dealloc_cmap(&info->cmap); | ||
646 | |||
647 | leo_unmap_regs(op, info, par); | ||
648 | |||
649 | framebuffer_release(info); | ||
650 | |||
651 | return 0; | ||
652 | } | ||
653 | |||
654 | static const struct of_device_id leo_match[] = { | ||
655 | { | ||
656 | .name = "SUNW,leo", | ||
657 | }, | ||
658 | {}, | ||
659 | }; | ||
660 | MODULE_DEVICE_TABLE(of, leo_match); | ||
661 | |||
662 | static struct platform_driver leo_driver = { | ||
663 | .driver = { | ||
664 | .name = "leo", | ||
665 | .owner = THIS_MODULE, | ||
666 | .of_match_table = leo_match, | ||
667 | }, | ||
668 | .probe = leo_probe, | ||
669 | .remove = leo_remove, | ||
670 | }; | ||
671 | |||
672 | static int __init leo_init(void) | ||
673 | { | ||
674 | if (fb_get_options("leofb", NULL)) | ||
675 | return -ENODEV; | ||
676 | |||
677 | return platform_driver_register(&leo_driver); | ||
678 | } | ||
679 | |||
680 | static void __exit leo_exit(void) | ||
681 | { | ||
682 | platform_driver_unregister(&leo_driver); | ||
683 | } | ||
684 | |||
685 | module_init(leo_init); | ||
686 | module_exit(leo_exit); | ||
687 | |||
688 | MODULE_DESCRIPTION("framebuffer driver for LEO chipsets"); | ||
689 | MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); | ||
690 | MODULE_VERSION("2.0"); | ||
691 | MODULE_LICENSE("GPL"); | ||