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1da177e4 LT |
1 | /* leo.c: LEO frame buffer driver |
2 | * | |
50312ce9 | 3 | * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net) |
1da177e4 LT |
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/slab.h> | |
15 | #include <linux/delay.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/fb.h> | |
18 | #include <linux/mm.h> | |
19 | ||
20 | #include <asm/io.h> | |
50312ce9 DM |
21 | #include <asm/prom.h> |
22 | #include <asm/of_device.h> | |
1da177e4 LT |
23 | #include <asm/fbio.h> |
24 | ||
25 | #include "sbuslib.h" | |
26 | ||
27 | /* | |
28 | * Local functions. | |
29 | */ | |
30 | ||
31 | static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned, | |
32 | unsigned, struct fb_info *); | |
33 | static int leo_blank(int, struct fb_info *); | |
34 | ||
216d526c | 35 | static int leo_mmap(struct fb_info *, struct vm_area_struct *); |
67a6680d | 36 | static int leo_ioctl(struct fb_info *, unsigned int, unsigned long); |
1da177e4 LT |
37 | static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *); |
38 | ||
39 | /* | |
40 | * Frame buffer operations | |
41 | */ | |
42 | ||
43 | static struct fb_ops leo_ops = { | |
44 | .owner = THIS_MODULE, | |
45 | .fb_setcolreg = leo_setcolreg, | |
46 | .fb_blank = leo_blank, | |
47 | .fb_pan_display = leo_pan_display, | |
48 | .fb_fillrect = cfb_fillrect, | |
49 | .fb_copyarea = cfb_copyarea, | |
50 | .fb_imageblit = cfb_imageblit, | |
51 | .fb_mmap = leo_mmap, | |
52 | .fb_ioctl = leo_ioctl, | |
9ffb83bc CH |
53 | #ifdef CONFIG_COMPAT |
54 | .fb_compat_ioctl = sbusfb_compat_ioctl, | |
55 | #endif | |
1da177e4 LT |
56 | }; |
57 | ||
58 | #define LEO_OFF_LC_SS0_KRN 0x00200000UL | |
59 | #define LEO_OFF_LC_SS0_USR 0x00201000UL | |
60 | #define LEO_OFF_LC_SS1_KRN 0x01200000UL | |
61 | #define LEO_OFF_LC_SS1_USR 0x01201000UL | |
62 | #define LEO_OFF_LD_SS0 0x00400000UL | |
63 | #define LEO_OFF_LD_SS1 0x01400000UL | |
64 | #define LEO_OFF_LD_GBL 0x00401000UL | |
65 | #define LEO_OFF_LX_KRN 0x00600000UL | |
66 | #define LEO_OFF_LX_CURSOR 0x00601000UL | |
67 | #define LEO_OFF_SS0 0x00800000UL | |
68 | #define LEO_OFF_SS1 0x01800000UL | |
69 | #define LEO_OFF_UNK 0x00602000UL | |
70 | #define LEO_OFF_UNK2 0x00000000UL | |
71 | ||
72 | #define LEO_CUR_ENABLE 0x00000080 | |
73 | #define LEO_CUR_UPDATE 0x00000030 | |
74 | #define LEO_CUR_PROGRESS 0x00000006 | |
75 | #define LEO_CUR_UPDATECMAP 0x00000003 | |
76 | ||
77 | #define LEO_CUR_TYPE_MASK 0x00000000 | |
78 | #define LEO_CUR_TYPE_IMAGE 0x00000020 | |
79 | #define LEO_CUR_TYPE_CMAP 0x00000050 | |
80 | ||
81 | struct leo_cursor { | |
82 | u8 xxx0[16]; | |
50312ce9 DM |
83 | u32 cur_type; |
84 | u32 cur_misc; | |
85 | u32 cur_cursxy; | |
86 | u32 cur_data; | |
1da177e4 LT |
87 | }; |
88 | ||
89 | #define LEO_KRN_TYPE_CLUT0 0x00001000 | |
90 | #define LEO_KRN_TYPE_CLUT1 0x00001001 | |
91 | #define LEO_KRN_TYPE_CLUT2 0x00001002 | |
92 | #define LEO_KRN_TYPE_WID 0x00001003 | |
93 | #define LEO_KRN_TYPE_UNK 0x00001006 | |
94 | #define LEO_KRN_TYPE_VIDEO 0x00002003 | |
95 | #define LEO_KRN_TYPE_CLUTDATA 0x00004000 | |
96 | #define LEO_KRN_CSR_ENABLE 0x00000008 | |
97 | #define LEO_KRN_CSR_PROGRESS 0x00000004 | |
98 | #define LEO_KRN_CSR_UNK 0x00000002 | |
99 | #define LEO_KRN_CSR_UNK2 0x00000001 | |
100 | ||
101 | struct leo_lx_krn { | |
50312ce9 DM |
102 | u32 krn_type; |
103 | u32 krn_csr; | |
104 | u32 krn_value; | |
1da177e4 LT |
105 | }; |
106 | ||
107 | struct leo_lc_ss0_krn { | |
50312ce9 | 108 | u32 misc; |
1da177e4 | 109 | u8 xxx0[0x800-4]; |
50312ce9 | 110 | u32 rev; |
1da177e4 LT |
111 | }; |
112 | ||
113 | struct leo_lc_ss0_usr { | |
50312ce9 DM |
114 | u32 csr; |
115 | u32 addrspace; | |
116 | u32 fontmsk; | |
117 | u32 fontt; | |
118 | u32 extent; | |
119 | u32 src; | |
1da177e4 | 120 | u32 dst; |
50312ce9 DM |
121 | u32 copy; |
122 | u32 fill; | |
1da177e4 LT |
123 | }; |
124 | ||
125 | struct leo_lc_ss1_krn { | |
126 | u8 unknown; | |
127 | }; | |
128 | ||
129 | struct leo_lc_ss1_usr { | |
130 | u8 unknown; | |
131 | }; | |
132 | ||
133 | struct leo_ld { | |
134 | u8 xxx0[0xe00]; | |
50312ce9 DM |
135 | u32 csr; |
136 | u32 wid; | |
137 | u32 wmask; | |
138 | u32 widclip; | |
139 | u32 vclipmin; | |
140 | u32 vclipmax; | |
141 | u32 pickmin; /* SS1 only */ | |
142 | u32 pickmax; /* SS1 only */ | |
143 | u32 fg; | |
144 | u32 bg; | |
145 | u32 src; /* Copy/Scroll (SS0 only) */ | |
146 | u32 dst; /* Copy/Scroll/Fill (SS0 only) */ | |
147 | u32 extent; /* Copy/Scroll/Fill size (SS0 only) */ | |
1da177e4 | 148 | u32 xxx1[3]; |
50312ce9 DM |
149 | u32 setsem; /* SS1 only */ |
150 | u32 clrsem; /* SS1 only */ | |
151 | u32 clrpick; /* SS1 only */ | |
152 | u32 clrdat; /* SS1 only */ | |
153 | u32 alpha; /* SS1 only */ | |
1da177e4 | 154 | u8 xxx2[0x2c]; |
50312ce9 DM |
155 | u32 winbg; |
156 | u32 planemask; | |
157 | u32 rop; | |
158 | u32 z; | |
159 | u32 dczf; /* SS1 only */ | |
160 | u32 dczb; /* SS1 only */ | |
161 | u32 dcs; /* SS1 only */ | |
162 | u32 dczs; /* SS1 only */ | |
163 | u32 pickfb; /* SS1 only */ | |
164 | u32 pickbb; /* SS1 only */ | |
165 | u32 dcfc; /* SS1 only */ | |
166 | u32 forcecol; /* SS1 only */ | |
167 | u32 door[8]; /* SS1 only */ | |
168 | u32 pick[5]; /* SS1 only */ | |
1da177e4 LT |
169 | }; |
170 | ||
171 | #define LEO_SS1_MISC_ENABLE 0x00000001 | |
172 | #define LEO_SS1_MISC_STEREO 0x00000002 | |
173 | struct leo_ld_ss1 { | |
50312ce9 DM |
174 | u8 xxx0[0xef4]; |
175 | u32 ss1_misc; | |
1da177e4 LT |
176 | }; |
177 | ||
178 | struct leo_ld_gbl { | |
179 | u8 unknown; | |
180 | }; | |
181 | ||
182 | struct leo_par { | |
183 | spinlock_t lock; | |
184 | struct leo_lx_krn __iomem *lx_krn; | |
185 | struct leo_lc_ss0_usr __iomem *lc_ss0_usr; | |
186 | struct leo_ld_ss0 __iomem *ld_ss0; | |
187 | struct leo_ld_ss1 __iomem *ld_ss1; | |
188 | struct leo_cursor __iomem *cursor; | |
189 | u32 extent; | |
190 | u32 clut_data[256]; | |
191 | ||
192 | u32 flags; | |
193 | #define LEO_FLAG_BLANKED 0x00000001 | |
194 | ||
195 | unsigned long physbase; | |
50312ce9 | 196 | unsigned long which_io; |
1da177e4 | 197 | unsigned long fbsize; |
1da177e4 LT |
198 | }; |
199 | ||
200 | static void leo_wait(struct leo_lx_krn __iomem *lx_krn) | |
201 | { | |
202 | int i; | |
203 | ||
204 | for (i = 0; | |
205 | (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && i < 300000; | |
206 | i++) | |
207 | udelay (1); /* Busy wait at most 0.3 sec */ | |
208 | return; | |
209 | } | |
210 | ||
211 | /** | |
212 | * leo_setcolreg - Optional function. Sets a color register. | |
213 | * @regno: boolean, 0 copy local, 1 get_user() function | |
214 | * @red: frame buffer colormap structure | |
215 | * @green: The green value which can be up to 16 bits wide | |
216 | * @blue: The blue value which can be up to 16 bits wide. | |
217 | * @transp: If supported the alpha value which can be up to 16 bits wide. | |
218 | * @info: frame buffer info structure | |
219 | */ | |
220 | static int leo_setcolreg(unsigned regno, | |
221 | unsigned red, unsigned green, unsigned blue, | |
222 | unsigned transp, struct fb_info *info) | |
223 | { | |
224 | struct leo_par *par = (struct leo_par *) info->par; | |
225 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | |
226 | unsigned long flags; | |
227 | u32 val; | |
228 | int i; | |
229 | ||
230 | if (regno >= 256) | |
231 | return 1; | |
232 | ||
233 | red >>= 8; | |
234 | green >>= 8; | |
235 | blue >>= 8; | |
236 | ||
237 | par->clut_data[regno] = red | (green << 8) | (blue << 16); | |
238 | ||
239 | spin_lock_irqsave(&par->lock, flags); | |
240 | ||
241 | leo_wait(lx_krn); | |
242 | ||
243 | sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type); | |
244 | for (i = 0; i < 256; i++) | |
245 | sbus_writel(par->clut_data[i], &lx_krn->krn_value); | |
246 | sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type); | |
247 | ||
248 | val = sbus_readl(&lx_krn->krn_csr); | |
249 | val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); | |
250 | sbus_writel(val, &lx_krn->krn_csr); | |
251 | ||
252 | spin_unlock_irqrestore(&par->lock, flags); | |
253 | ||
254 | return 0; | |
255 | } | |
256 | ||
257 | /** | |
258 | * leo_blank - Optional function. Blanks the display. | |
259 | * @blank_mode: the blank mode we want. | |
260 | * @info: frame buffer structure that represents a single frame buffer | |
261 | */ | |
262 | static int leo_blank(int blank, struct fb_info *info) | |
263 | { | |
264 | struct leo_par *par = (struct leo_par *) info->par; | |
265 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | |
266 | unsigned long flags; | |
267 | u32 val; | |
268 | ||
269 | spin_lock_irqsave(&par->lock, flags); | |
270 | ||
271 | switch (blank) { | |
272 | case FB_BLANK_UNBLANK: /* Unblanking */ | |
273 | val = sbus_readl(&lx_krn->krn_csr); | |
274 | val |= LEO_KRN_CSR_ENABLE; | |
275 | sbus_writel(val, &lx_krn->krn_csr); | |
276 | par->flags &= ~LEO_FLAG_BLANKED; | |
277 | break; | |
278 | ||
279 | case FB_BLANK_NORMAL: /* Normal blanking */ | |
280 | case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ | |
281 | case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ | |
282 | case FB_BLANK_POWERDOWN: /* Poweroff */ | |
283 | val = sbus_readl(&lx_krn->krn_csr); | |
284 | val &= ~LEO_KRN_CSR_ENABLE; | |
285 | sbus_writel(val, &lx_krn->krn_csr); | |
286 | par->flags |= LEO_FLAG_BLANKED; | |
287 | break; | |
288 | } | |
289 | ||
290 | spin_unlock_irqrestore(&par->lock, flags); | |
291 | ||
292 | return 0; | |
293 | } | |
294 | ||
295 | static struct sbus_mmap_map leo_mmap_map[] = { | |
296 | { | |
297 | .voff = LEO_SS0_MAP, | |
298 | .poff = LEO_OFF_SS0, | |
299 | .size = 0x800000 | |
300 | }, | |
301 | { | |
302 | .voff = LEO_LC_SS0_USR_MAP, | |
303 | .poff = LEO_OFF_LC_SS0_USR, | |
304 | .size = 0x1000 | |
305 | }, | |
306 | { | |
307 | .voff = LEO_LD_SS0_MAP, | |
308 | .poff = LEO_OFF_LD_SS0, | |
309 | .size = 0x1000 | |
310 | }, | |
311 | { | |
312 | .voff = LEO_LX_CURSOR_MAP, | |
313 | .poff = LEO_OFF_LX_CURSOR, | |
314 | .size = 0x1000 | |
315 | }, | |
316 | { | |
317 | .voff = LEO_SS1_MAP, | |
318 | .poff = LEO_OFF_SS1, | |
319 | .size = 0x800000 | |
320 | }, | |
321 | { | |
322 | .voff = LEO_LC_SS1_USR_MAP, | |
323 | .poff = LEO_OFF_LC_SS1_USR, | |
324 | .size = 0x1000 | |
325 | }, | |
326 | { | |
327 | .voff = LEO_LD_SS1_MAP, | |
328 | .poff = LEO_OFF_LD_SS1, | |
329 | .size = 0x1000 | |
330 | }, | |
331 | { | |
332 | .voff = LEO_UNK_MAP, | |
333 | .poff = LEO_OFF_UNK, | |
334 | .size = 0x1000 | |
335 | }, | |
336 | { | |
337 | .voff = LEO_LX_KRN_MAP, | |
338 | .poff = LEO_OFF_LX_KRN, | |
339 | .size = 0x1000 | |
340 | }, | |
341 | { | |
342 | .voff = LEO_LC_SS0_KRN_MAP, | |
343 | .poff = LEO_OFF_LC_SS0_KRN, | |
344 | .size = 0x1000 | |
345 | }, | |
346 | { | |
347 | .voff = LEO_LC_SS1_KRN_MAP, | |
348 | .poff = LEO_OFF_LC_SS1_KRN, | |
349 | .size = 0x1000 | |
350 | }, | |
351 | { | |
352 | .voff = LEO_LD_GBL_MAP, | |
353 | .poff = LEO_OFF_LD_GBL, | |
354 | .size = 0x1000 | |
355 | }, | |
356 | { | |
357 | .voff = LEO_UNK2_MAP, | |
358 | .poff = LEO_OFF_UNK2, | |
359 | .size = 0x100000 | |
360 | }, | |
361 | { .size = 0 } | |
362 | }; | |
363 | ||
216d526c | 364 | static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma) |
1da177e4 LT |
365 | { |
366 | struct leo_par *par = (struct leo_par *)info->par; | |
367 | ||
368 | return sbusfb_mmap_helper(leo_mmap_map, | |
369 | par->physbase, par->fbsize, | |
50312ce9 | 370 | par->which_io, vma); |
1da177e4 LT |
371 | } |
372 | ||
67a6680d | 373 | static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
374 | { |
375 | struct leo_par *par = (struct leo_par *) info->par; | |
376 | ||
377 | return sbusfb_ioctl_helper(cmd, arg, info, | |
378 | FBTYPE_SUNLEO, 32, par->fbsize); | |
379 | } | |
380 | ||
381 | /* | |
382 | * Initialisation | |
383 | */ | |
384 | ||
385 | static void | |
50312ce9 | 386 | leo_init_fix(struct fb_info *info, struct device_node *dp) |
1da177e4 | 387 | { |
50312ce9 | 388 | strlcpy(info->fix.id, dp->name, sizeof(info->fix.id)); |
1da177e4 LT |
389 | |
390 | info->fix.type = FB_TYPE_PACKED_PIXELS; | |
391 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
392 | ||
393 | info->fix.line_length = 8192; | |
394 | ||
395 | info->fix.accel = FB_ACCEL_SUN_LEO; | |
396 | } | |
397 | ||
398 | static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl) | |
399 | { | |
400 | struct leo_par *par = (struct leo_par *) info->par; | |
401 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | |
402 | struct fb_wid_item *wi; | |
403 | unsigned long flags; | |
404 | u32 val; | |
405 | int i, j; | |
406 | ||
407 | spin_lock_irqsave(&par->lock, flags); | |
408 | ||
409 | leo_wait(lx_krn); | |
410 | ||
411 | for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) { | |
412 | switch(wi->wi_type) { | |
413 | case FB_WID_DBL_8: | |
414 | j = (wi->wi_index & 0xf) + 0x40; | |
415 | break; | |
416 | ||
417 | case FB_WID_DBL_24: | |
418 | j = wi->wi_index & 0x3f; | |
419 | break; | |
420 | ||
421 | default: | |
422 | continue; | |
423 | }; | |
424 | sbus_writel(0x5800 + j, &lx_krn->krn_type); | |
425 | sbus_writel(wi->wi_values[0], &lx_krn->krn_value); | |
426 | } | |
427 | sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type); | |
428 | ||
429 | val = sbus_readl(&lx_krn->krn_csr); | |
430 | val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); | |
431 | sbus_writel(val, &lx_krn->krn_csr); | |
432 | ||
433 | spin_unlock_irqrestore(&par->lock, flags); | |
434 | } | |
435 | ||
436 | static void leo_init_wids(struct fb_info *info) | |
437 | { | |
438 | struct fb_wid_item wi; | |
439 | struct fb_wid_list wl; | |
440 | ||
441 | wl.wl_count = 1; | |
442 | wl.wl_list = &wi; | |
443 | wi.wi_type = FB_WID_DBL_8; | |
444 | wi.wi_index = 0; | |
445 | wi.wi_values [0] = 0x2c0; | |
446 | leo_wid_put(info, &wl); | |
447 | wi.wi_index = 1; | |
448 | wi.wi_values [0] = 0x30; | |
449 | leo_wid_put(info, &wl); | |
450 | wi.wi_index = 2; | |
451 | wi.wi_values [0] = 0x20; | |
452 | leo_wid_put(info, &wl); | |
453 | wi.wi_type = FB_WID_DBL_24; | |
454 | wi.wi_index = 1; | |
455 | wi.wi_values [0] = 0x30; | |
456 | leo_wid_put(info, &wl); | |
457 | ||
458 | } | |
459 | ||
460 | static void leo_switch_from_graph(struct fb_info *info) | |
461 | { | |
462 | struct leo_par *par = (struct leo_par *) info->par; | |
463 | struct leo_ld __iomem *ss = (struct leo_ld __iomem *) par->ld_ss0; | |
464 | unsigned long flags; | |
465 | u32 val; | |
466 | ||
467 | spin_lock_irqsave(&par->lock, flags); | |
468 | ||
469 | par->extent = ((info->var.xres - 1) | | |
470 | ((info->var.yres - 1) << 16)); | |
471 | ||
472 | sbus_writel(0xffffffff, &ss->wid); | |
473 | sbus_writel(0xffff, &ss->wmask); | |
474 | sbus_writel(0, &ss->vclipmin); | |
475 | sbus_writel(par->extent, &ss->vclipmax); | |
476 | sbus_writel(0, &ss->fg); | |
477 | sbus_writel(0xff000000, &ss->planemask); | |
478 | sbus_writel(0x310850, &ss->rop); | |
479 | sbus_writel(0, &ss->widclip); | |
480 | sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11), | |
481 | &par->lc_ss0_usr->extent); | |
482 | sbus_writel(4, &par->lc_ss0_usr->addrspace); | |
483 | sbus_writel(0x80000000, &par->lc_ss0_usr->fill); | |
484 | sbus_writel(0, &par->lc_ss0_usr->fontt); | |
485 | do { | |
486 | val = sbus_readl(&par->lc_ss0_usr->csr); | |
487 | } while (val & 0x20000000); | |
488 | ||
489 | spin_unlock_irqrestore(&par->lock, flags); | |
490 | } | |
491 | ||
492 | static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) | |
493 | { | |
494 | /* We just use this to catch switches out of | |
495 | * graphics mode. | |
496 | */ | |
497 | leo_switch_from_graph(info); | |
498 | ||
499 | if (var->xoffset || var->yoffset || var->vmode) | |
500 | return -EINVAL; | |
501 | return 0; | |
502 | } | |
503 | ||
504 | static void leo_init_hw(struct fb_info *info) | |
505 | { | |
506 | struct leo_par *par = (struct leo_par *) info->par; | |
507 | u32 val; | |
508 | ||
509 | val = sbus_readl(&par->ld_ss1->ss1_misc); | |
510 | val |= LEO_SS1_MISC_ENABLE; | |
511 | sbus_writel(val, &par->ld_ss1->ss1_misc); | |
512 | ||
513 | leo_switch_from_graph(info); | |
514 | } | |
515 | ||
516 | static void leo_fixup_var_rgb(struct fb_var_screeninfo *var) | |
517 | { | |
518 | var->red.offset = 0; | |
519 | var->red.length = 8; | |
520 | var->green.offset = 8; | |
521 | var->green.length = 8; | |
522 | var->blue.offset = 16; | |
523 | var->blue.length = 8; | |
524 | var->transp.offset = 0; | |
525 | var->transp.length = 0; | |
526 | } | |
527 | ||
c7f439b9 DM |
528 | static void leo_unmap_regs(struct of_device *op, struct fb_info *info, |
529 | struct leo_par *par) | |
1da177e4 | 530 | { |
c7f439b9 DM |
531 | if (par->lc_ss0_usr) |
532 | of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000); | |
533 | if (par->ld_ss0) | |
534 | of_iounmap(&op->resource[0], par->ld_ss0, 0x1000); | |
535 | if (par->ld_ss1) | |
536 | of_iounmap(&op->resource[0], par->ld_ss1, 0x1000); | |
537 | if (par->lx_krn) | |
538 | of_iounmap(&op->resource[0], par->lx_krn, 0x1000); | |
539 | if (par->cursor) | |
e3a411a3 | 540 | of_iounmap(&op->resource[0], |
c7f439b9 DM |
541 | par->cursor, sizeof(struct leo_cursor)); |
542 | if (info->screen_base) | |
543 | of_iounmap(&op->resource[0], info->screen_base, 0x800000); | |
50312ce9 | 544 | } |
1da177e4 | 545 | |
c7f439b9 | 546 | static int __devinit leo_probe(struct of_device *op, const struct of_device_id *match) |
50312ce9 DM |
547 | { |
548 | struct device_node *dp = op->node; | |
c7f439b9 DM |
549 | struct fb_info *info; |
550 | struct leo_par *par; | |
50312ce9 | 551 | int linebytes, err; |
1da177e4 | 552 | |
c7f439b9 DM |
553 | info = framebuffer_alloc(sizeof(struct leo_par), &op->dev); |
554 | ||
555 | err = -ENOMEM; | |
556 | if (!info) | |
557 | goto out_err; | |
558 | par = info->par; | |
1da177e4 | 559 | |
c7f439b9 | 560 | spin_lock_init(&par->lock); |
1da177e4 | 561 | |
c7f439b9 DM |
562 | par->physbase = op->resource[0].start; |
563 | par->which_io = op->resource[0].flags & IORESOURCE_BITS; | |
1da177e4 | 564 | |
c7f439b9 DM |
565 | sbusfb_fill_var(&info->var, dp->node, 32); |
566 | leo_fixup_var_rgb(&info->var); | |
1da177e4 | 567 | |
50312ce9 | 568 | linebytes = of_getintprop_default(dp, "linebytes", |
c7f439b9 DM |
569 | info->var.xres); |
570 | par->fbsize = PAGE_ALIGN(linebytes * info->var.yres); | |
1da177e4 | 571 | |
c7f439b9 | 572 | par->lc_ss0_usr = |
50312ce9 DM |
573 | of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR, |
574 | 0x1000, "leolc ss0usr"); | |
c7f439b9 | 575 | par->ld_ss0 = |
50312ce9 DM |
576 | of_ioremap(&op->resource[0], LEO_OFF_LD_SS0, |
577 | 0x1000, "leold ss0"); | |
c7f439b9 | 578 | par->ld_ss1 = |
50312ce9 DM |
579 | of_ioremap(&op->resource[0], LEO_OFF_LD_SS1, |
580 | 0x1000, "leold ss1"); | |
c7f439b9 | 581 | par->lx_krn = |
50312ce9 DM |
582 | of_ioremap(&op->resource[0], LEO_OFF_LX_KRN, |
583 | 0x1000, "leolx krn"); | |
c7f439b9 | 584 | par->cursor = |
50312ce9 DM |
585 | of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR, |
586 | sizeof(struct leo_cursor), "leolx cursor"); | |
c7f439b9 | 587 | info->screen_base = |
50312ce9 DM |
588 | of_ioremap(&op->resource[0], LEO_OFF_SS0, |
589 | 0x800000, "leo ram"); | |
c7f439b9 DM |
590 | if (!par->lc_ss0_usr || |
591 | !par->ld_ss0 || | |
592 | !par->ld_ss1 || | |
593 | !par->lx_krn || | |
594 | !par->cursor || | |
595 | !info->screen_base) | |
596 | goto out_unmap_regs; | |
1da177e4 | 597 | |
c7f439b9 DM |
598 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; |
599 | info->fbops = &leo_ops; | |
1da177e4 | 600 | |
c7f439b9 DM |
601 | leo_init_wids(info); |
602 | leo_init_hw(info); | |
1da177e4 | 603 | |
c7f439b9 | 604 | leo_blank(0, info); |
1da177e4 | 605 | |
c7f439b9 DM |
606 | if (fb_alloc_cmap(&info->cmap, 256, 0)) |
607 | goto out_unmap_regs; | |
1da177e4 | 608 | |
c7f439b9 | 609 | leo_init_fix(info, dp); |
1da177e4 | 610 | |
c7f439b9 DM |
611 | err = register_framebuffer(info); |
612 | if (err < 0) | |
613 | goto out_dealloc_cmap; | |
1da177e4 | 614 | |
c7f439b9 | 615 | dev_set_drvdata(&op->dev, info); |
50312ce9 DM |
616 | |
617 | printk("%s: leo at %lx:%lx\n", | |
618 | dp->full_name, | |
c7f439b9 | 619 | par->which_io, par->physbase); |
1da177e4 | 620 | |
50312ce9 | 621 | return 0; |
1da177e4 | 622 | |
c7f439b9 DM |
623 | out_dealloc_cmap: |
624 | fb_dealloc_cmap(&info->cmap); | |
625 | ||
626 | out_unmap_regs: | |
627 | leo_unmap_regs(op, info, par); | |
628 | framebuffer_release(info); | |
1da177e4 | 629 | |
c7f439b9 DM |
630 | out_err: |
631 | return err; | |
50312ce9 | 632 | } |
1da177e4 | 633 | |
e3a411a3 | 634 | static int __devexit leo_remove(struct of_device *op) |
50312ce9 | 635 | { |
c7f439b9 DM |
636 | struct fb_info *info = dev_get_drvdata(&op->dev); |
637 | struct leo_par *par = info->par; | |
50312ce9 | 638 | |
c7f439b9 DM |
639 | unregister_framebuffer(info); |
640 | fb_dealloc_cmap(&info->cmap); | |
50312ce9 | 641 | |
c7f439b9 | 642 | leo_unmap_regs(op, info, par); |
50312ce9 | 643 | |
c7f439b9 | 644 | framebuffer_release(info); |
50312ce9 | 645 | |
e3a411a3 | 646 | dev_set_drvdata(&op->dev, NULL); |
1da177e4 LT |
647 | |
648 | return 0; | |
649 | } | |
650 | ||
50312ce9 DM |
651 | static struct of_device_id leo_match[] = { |
652 | { | |
653 | .name = "leo", | |
654 | }, | |
655 | {}, | |
656 | }; | |
657 | MODULE_DEVICE_TABLE(of, leo_match); | |
658 | ||
659 | static struct of_platform_driver leo_driver = { | |
660 | .name = "leo", | |
661 | .match_table = leo_match, | |
662 | .probe = leo_probe, | |
663 | .remove = __devexit_p(leo_remove), | |
664 | }; | |
1da177e4 | 665 | |
50312ce9 DM |
666 | static int __init leo_init(void) |
667 | { | |
668 | if (fb_get_options("leofb", NULL)) | |
669 | return -ENODEV; | |
1da177e4 | 670 | |
50312ce9 | 671 | return of_register_driver(&leo_driver, &of_bus_type); |
1da177e4 LT |
672 | } |
673 | ||
50312ce9 | 674 | static void __exit leo_exit(void) |
1da177e4 | 675 | { |
50312ce9 | 676 | of_unregister_driver(&leo_driver); |
1da177e4 LT |
677 | } |
678 | ||
679 | module_init(leo_init); | |
1da177e4 | 680 | module_exit(leo_exit); |
1da177e4 LT |
681 | |
682 | MODULE_DESCRIPTION("framebuffer driver for LEO chipsets"); | |
50312ce9 DM |
683 | MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); |
684 | MODULE_VERSION("2.0"); | |
1da177e4 | 685 | MODULE_LICENSE("GPL"); |