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Commit | Line | Data |
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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> | |
6cd5a86b | 19 | #include <linux/of_device.h> |
738eca74 | 20 | #include <linux/io.h> |
1da177e4 | 21 | |
1da177e4 LT |
22 | #include <asm/fbio.h> |
23 | ||
24 | #include "sbuslib.h" | |
25 | ||
26 | /* | |
27 | * Local functions. | |
28 | */ | |
29 | ||
30 | static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned, | |
31 | unsigned, struct fb_info *); | |
32 | static int leo_blank(int, struct fb_info *); | |
33 | ||
216d526c | 34 | static int leo_mmap(struct fb_info *, struct vm_area_struct *); |
67a6680d | 35 | static int leo_ioctl(struct fb_info *, unsigned int, unsigned long); |
4dd95b63 | 36 | static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *); |
1da177e4 LT |
37 | |
38 | /* | |
39 | * Frame buffer operations | |
40 | */ | |
41 | ||
42 | static struct fb_ops leo_ops = { | |
43 | .owner = THIS_MODULE, | |
44 | .fb_setcolreg = leo_setcolreg, | |
45 | .fb_blank = leo_blank, | |
4dd95b63 | 46 | .fb_pan_display = leo_pan_display, |
1da177e4 LT |
47 | .fb_fillrect = cfb_fillrect, |
48 | .fb_copyarea = cfb_copyarea, | |
49 | .fb_imageblit = cfb_imageblit, | |
50 | .fb_mmap = leo_mmap, | |
51 | .fb_ioctl = leo_ioctl, | |
9ffb83bc CH |
52 | #ifdef CONFIG_COMPAT |
53 | .fb_compat_ioctl = sbusfb_compat_ioctl, | |
54 | #endif | |
1da177e4 LT |
55 | }; |
56 | ||
57 | #define LEO_OFF_LC_SS0_KRN 0x00200000UL | |
58 | #define LEO_OFF_LC_SS0_USR 0x00201000UL | |
59 | #define LEO_OFF_LC_SS1_KRN 0x01200000UL | |
60 | #define LEO_OFF_LC_SS1_USR 0x01201000UL | |
61 | #define LEO_OFF_LD_SS0 0x00400000UL | |
62 | #define LEO_OFF_LD_SS1 0x01400000UL | |
63 | #define LEO_OFF_LD_GBL 0x00401000UL | |
64 | #define LEO_OFF_LX_KRN 0x00600000UL | |
65 | #define LEO_OFF_LX_CURSOR 0x00601000UL | |
66 | #define LEO_OFF_SS0 0x00800000UL | |
67 | #define LEO_OFF_SS1 0x01800000UL | |
68 | #define LEO_OFF_UNK 0x00602000UL | |
69 | #define LEO_OFF_UNK2 0x00000000UL | |
70 | ||
71 | #define LEO_CUR_ENABLE 0x00000080 | |
72 | #define LEO_CUR_UPDATE 0x00000030 | |
73 | #define LEO_CUR_PROGRESS 0x00000006 | |
74 | #define LEO_CUR_UPDATECMAP 0x00000003 | |
75 | ||
76 | #define LEO_CUR_TYPE_MASK 0x00000000 | |
77 | #define LEO_CUR_TYPE_IMAGE 0x00000020 | |
78 | #define LEO_CUR_TYPE_CMAP 0x00000050 | |
79 | ||
80 | struct leo_cursor { | |
738eca74 | 81 | u8 xxx0[16]; |
50312ce9 DM |
82 | u32 cur_type; |
83 | u32 cur_misc; | |
84 | u32 cur_cursxy; | |
85 | u32 cur_data; | |
1da177e4 LT |
86 | }; |
87 | ||
88 | #define LEO_KRN_TYPE_CLUT0 0x00001000 | |
89 | #define LEO_KRN_TYPE_CLUT1 0x00001001 | |
90 | #define LEO_KRN_TYPE_CLUT2 0x00001002 | |
91 | #define LEO_KRN_TYPE_WID 0x00001003 | |
92 | #define LEO_KRN_TYPE_UNK 0x00001006 | |
93 | #define LEO_KRN_TYPE_VIDEO 0x00002003 | |
94 | #define LEO_KRN_TYPE_CLUTDATA 0x00004000 | |
95 | #define LEO_KRN_CSR_ENABLE 0x00000008 | |
96 | #define LEO_KRN_CSR_PROGRESS 0x00000004 | |
97 | #define LEO_KRN_CSR_UNK 0x00000002 | |
98 | #define LEO_KRN_CSR_UNK2 0x00000001 | |
99 | ||
100 | struct leo_lx_krn { | |
50312ce9 DM |
101 | u32 krn_type; |
102 | u32 krn_csr; | |
103 | u32 krn_value; | |
1da177e4 LT |
104 | }; |
105 | ||
106 | struct leo_lc_ss0_krn { | |
50312ce9 | 107 | u32 misc; |
738eca74 | 108 | u8 xxx0[0x800-4]; |
50312ce9 | 109 | u32 rev; |
1da177e4 LT |
110 | }; |
111 | ||
112 | struct leo_lc_ss0_usr { | |
50312ce9 DM |
113 | u32 csr; |
114 | u32 addrspace; | |
115 | u32 fontmsk; | |
116 | u32 fontt; | |
117 | u32 extent; | |
118 | u32 src; | |
738eca74 | 119 | u32 dst; |
50312ce9 DM |
120 | u32 copy; |
121 | u32 fill; | |
1da177e4 LT |
122 | }; |
123 | ||
124 | struct leo_lc_ss1_krn { | |
125 | u8 unknown; | |
126 | }; | |
127 | ||
128 | struct leo_lc_ss1_usr { | |
129 | u8 unknown; | |
130 | }; | |
131 | ||
738eca74 RR |
132 | struct leo_ld_ss0 { |
133 | u8 xxx0[0xe00]; | |
50312ce9 DM |
134 | u32 csr; |
135 | u32 wid; | |
136 | u32 wmask; | |
137 | u32 widclip; | |
138 | u32 vclipmin; | |
139 | u32 vclipmax; | |
140 | u32 pickmin; /* SS1 only */ | |
141 | u32 pickmax; /* SS1 only */ | |
142 | u32 fg; | |
143 | u32 bg; | |
144 | u32 src; /* Copy/Scroll (SS0 only) */ | |
145 | u32 dst; /* Copy/Scroll/Fill (SS0 only) */ | |
146 | u32 extent; /* Copy/Scroll/Fill size (SS0 only) */ | |
738eca74 | 147 | u32 xxx1[3]; |
50312ce9 DM |
148 | u32 setsem; /* SS1 only */ |
149 | u32 clrsem; /* SS1 only */ | |
150 | u32 clrpick; /* SS1 only */ | |
151 | u32 clrdat; /* SS1 only */ | |
152 | u32 alpha; /* SS1 only */ | |
738eca74 | 153 | u8 xxx2[0x2c]; |
50312ce9 DM |
154 | u32 winbg; |
155 | u32 planemask; | |
156 | u32 rop; | |
157 | u32 z; | |
158 | u32 dczf; /* SS1 only */ | |
159 | u32 dczb; /* SS1 only */ | |
160 | u32 dcs; /* SS1 only */ | |
161 | u32 dczs; /* SS1 only */ | |
162 | u32 pickfb; /* SS1 only */ | |
163 | u32 pickbb; /* SS1 only */ | |
164 | u32 dcfc; /* SS1 only */ | |
165 | u32 forcecol; /* SS1 only */ | |
166 | u32 door[8]; /* SS1 only */ | |
167 | u32 pick[5]; /* SS1 only */ | |
1da177e4 LT |
168 | }; |
169 | ||
170 | #define LEO_SS1_MISC_ENABLE 0x00000001 | |
171 | #define LEO_SS1_MISC_STEREO 0x00000002 | |
172 | struct leo_ld_ss1 { | |
50312ce9 DM |
173 | u8 xxx0[0xef4]; |
174 | u32 ss1_misc; | |
1da177e4 LT |
175 | }; |
176 | ||
177 | struct leo_ld_gbl { | |
178 | u8 unknown; | |
179 | }; | |
180 | ||
181 | struct leo_par { | |
182 | spinlock_t lock; | |
183 | struct leo_lx_krn __iomem *lx_krn; | |
184 | struct leo_lc_ss0_usr __iomem *lc_ss0_usr; | |
185 | struct leo_ld_ss0 __iomem *ld_ss0; | |
186 | struct leo_ld_ss1 __iomem *ld_ss1; | |
187 | struct leo_cursor __iomem *cursor; | |
188 | u32 extent; | |
189 | u32 clut_data[256]; | |
190 | ||
191 | u32 flags; | |
192 | #define LEO_FLAG_BLANKED 0x00000001 | |
193 | ||
194 | unsigned long physbase; | |
50312ce9 | 195 | unsigned long which_io; |
1da177e4 | 196 | unsigned long fbsize; |
1da177e4 LT |
197 | }; |
198 | ||
199 | static void leo_wait(struct leo_lx_krn __iomem *lx_krn) | |
200 | { | |
201 | int i; | |
738eca74 | 202 | |
1da177e4 | 203 | for (i = 0; |
738eca74 RR |
204 | (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && |
205 | i < 300000; | |
1da177e4 | 206 | i++) |
738eca74 | 207 | udelay(1); /* Busy wait at most 0.3 sec */ |
1da177e4 LT |
208 | return; |
209 | } | |
210 | ||
4dd95b63 RR |
211 | static void leo_switch_from_graph(struct fb_info *info) |
212 | { | |
213 | struct leo_par *par = (struct leo_par *) info->par; | |
214 | struct leo_ld_ss0 __iomem *ss = par->ld_ss0; | |
215 | struct leo_cursor __iomem *cursor = par->cursor; | |
216 | unsigned long flags; | |
217 | u32 val; | |
218 | ||
219 | spin_lock_irqsave(&par->lock, flags); | |
220 | ||
221 | par->extent = ((info->var.xres - 1) | | |
222 | ((info->var.yres - 1) << 16)); | |
223 | ||
224 | sbus_writel(0xffffffff, &ss->wid); | |
225 | sbus_writel(0xffff, &ss->wmask); | |
226 | sbus_writel(0, &ss->vclipmin); | |
227 | sbus_writel(par->extent, &ss->vclipmax); | |
228 | sbus_writel(0, &ss->fg); | |
229 | sbus_writel(0xff000000, &ss->planemask); | |
230 | sbus_writel(0x310850, &ss->rop); | |
231 | sbus_writel(0, &ss->widclip); | |
232 | sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11), | |
233 | &par->lc_ss0_usr->extent); | |
234 | sbus_writel(4, &par->lc_ss0_usr->addrspace); | |
235 | sbus_writel(0x80000000, &par->lc_ss0_usr->fill); | |
236 | sbus_writel(0, &par->lc_ss0_usr->fontt); | |
237 | do { | |
238 | val = sbus_readl(&par->lc_ss0_usr->csr); | |
239 | } while (val & 0x20000000); | |
240 | ||
241 | /* setup screen buffer for cfb_* functions */ | |
242 | sbus_writel(1, &ss->wid); | |
243 | sbus_writel(0x00ffffff, &ss->planemask); | |
244 | sbus_writel(0x310b90, &ss->rop); | |
245 | sbus_writel(0, &par->lc_ss0_usr->addrspace); | |
246 | ||
247 | /* hide cursor */ | |
248 | sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc); | |
249 | ||
250 | spin_unlock_irqrestore(&par->lock, flags); | |
251 | } | |
252 | ||
253 | static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) | |
254 | { | |
255 | /* We just use this to catch switches out of | |
256 | * graphics mode. | |
257 | */ | |
258 | leo_switch_from_graph(info); | |
259 | ||
260 | if (var->xoffset || var->yoffset || var->vmode) | |
261 | return -EINVAL; | |
262 | return 0; | |
263 | } | |
264 | ||
1da177e4 LT |
265 | /** |
266 | * leo_setcolreg - Optional function. Sets a color register. | |
267 | * @regno: boolean, 0 copy local, 1 get_user() function | |
268 | * @red: frame buffer colormap structure | |
269 | * @green: The green value which can be up to 16 bits wide | |
270 | * @blue: The blue value which can be up to 16 bits wide. | |
271 | * @transp: If supported the alpha value which can be up to 16 bits wide. | |
272 | * @info: frame buffer info structure | |
273 | */ | |
274 | static int leo_setcolreg(unsigned regno, | |
275 | unsigned red, unsigned green, unsigned blue, | |
276 | unsigned transp, struct fb_info *info) | |
277 | { | |
278 | struct leo_par *par = (struct leo_par *) info->par; | |
738eca74 | 279 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; |
1da177e4 LT |
280 | unsigned long flags; |
281 | u32 val; | |
282 | int i; | |
283 | ||
284 | if (regno >= 256) | |
285 | return 1; | |
286 | ||
287 | red >>= 8; | |
288 | green >>= 8; | |
289 | blue >>= 8; | |
290 | ||
291 | par->clut_data[regno] = red | (green << 8) | (blue << 16); | |
292 | ||
293 | spin_lock_irqsave(&par->lock, flags); | |
294 | ||
295 | leo_wait(lx_krn); | |
296 | ||
297 | sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type); | |
298 | for (i = 0; i < 256; i++) | |
299 | sbus_writel(par->clut_data[i], &lx_krn->krn_value); | |
300 | sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type); | |
301 | ||
302 | val = sbus_readl(&lx_krn->krn_csr); | |
303 | val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); | |
304 | sbus_writel(val, &lx_krn->krn_csr); | |
305 | ||
306 | spin_unlock_irqrestore(&par->lock, flags); | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
311 | /** | |
312 | * leo_blank - Optional function. Blanks the display. | |
313 | * @blank_mode: the blank mode we want. | |
314 | * @info: frame buffer structure that represents a single frame buffer | |
315 | */ | |
316 | static int leo_blank(int blank, struct fb_info *info) | |
317 | { | |
318 | struct leo_par *par = (struct leo_par *) info->par; | |
319 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | |
320 | unsigned long flags; | |
321 | u32 val; | |
322 | ||
323 | spin_lock_irqsave(&par->lock, flags); | |
324 | ||
325 | switch (blank) { | |
326 | case FB_BLANK_UNBLANK: /* Unblanking */ | |
327 | val = sbus_readl(&lx_krn->krn_csr); | |
328 | val |= LEO_KRN_CSR_ENABLE; | |
329 | sbus_writel(val, &lx_krn->krn_csr); | |
330 | par->flags &= ~LEO_FLAG_BLANKED; | |
331 | break; | |
332 | ||
333 | case FB_BLANK_NORMAL: /* Normal blanking */ | |
334 | case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ | |
335 | case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ | |
336 | case FB_BLANK_POWERDOWN: /* Poweroff */ | |
337 | val = sbus_readl(&lx_krn->krn_csr); | |
338 | val &= ~LEO_KRN_CSR_ENABLE; | |
339 | sbus_writel(val, &lx_krn->krn_csr); | |
340 | par->flags |= LEO_FLAG_BLANKED; | |
341 | break; | |
342 | } | |
343 | ||
344 | spin_unlock_irqrestore(&par->lock, flags); | |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
349 | static struct sbus_mmap_map leo_mmap_map[] = { | |
350 | { | |
351 | .voff = LEO_SS0_MAP, | |
352 | .poff = LEO_OFF_SS0, | |
353 | .size = 0x800000 | |
354 | }, | |
355 | { | |
356 | .voff = LEO_LC_SS0_USR_MAP, | |
357 | .poff = LEO_OFF_LC_SS0_USR, | |
358 | .size = 0x1000 | |
359 | }, | |
360 | { | |
361 | .voff = LEO_LD_SS0_MAP, | |
362 | .poff = LEO_OFF_LD_SS0, | |
363 | .size = 0x1000 | |
364 | }, | |
365 | { | |
366 | .voff = LEO_LX_CURSOR_MAP, | |
367 | .poff = LEO_OFF_LX_CURSOR, | |
368 | .size = 0x1000 | |
369 | }, | |
370 | { | |
371 | .voff = LEO_SS1_MAP, | |
372 | .poff = LEO_OFF_SS1, | |
373 | .size = 0x800000 | |
374 | }, | |
375 | { | |
376 | .voff = LEO_LC_SS1_USR_MAP, | |
377 | .poff = LEO_OFF_LC_SS1_USR, | |
378 | .size = 0x1000 | |
379 | }, | |
380 | { | |
381 | .voff = LEO_LD_SS1_MAP, | |
382 | .poff = LEO_OFF_LD_SS1, | |
383 | .size = 0x1000 | |
384 | }, | |
385 | { | |
386 | .voff = LEO_UNK_MAP, | |
387 | .poff = LEO_OFF_UNK, | |
388 | .size = 0x1000 | |
389 | }, | |
390 | { | |
391 | .voff = LEO_LX_KRN_MAP, | |
392 | .poff = LEO_OFF_LX_KRN, | |
393 | .size = 0x1000 | |
394 | }, | |
395 | { | |
396 | .voff = LEO_LC_SS0_KRN_MAP, | |
397 | .poff = LEO_OFF_LC_SS0_KRN, | |
398 | .size = 0x1000 | |
399 | }, | |
400 | { | |
401 | .voff = LEO_LC_SS1_KRN_MAP, | |
402 | .poff = LEO_OFF_LC_SS1_KRN, | |
403 | .size = 0x1000 | |
404 | }, | |
405 | { | |
406 | .voff = LEO_LD_GBL_MAP, | |
407 | .poff = LEO_OFF_LD_GBL, | |
408 | .size = 0x1000 | |
409 | }, | |
410 | { | |
411 | .voff = LEO_UNK2_MAP, | |
412 | .poff = LEO_OFF_UNK2, | |
413 | .size = 0x100000 | |
414 | }, | |
415 | { .size = 0 } | |
416 | }; | |
417 | ||
216d526c | 418 | static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma) |
1da177e4 LT |
419 | { |
420 | struct leo_par *par = (struct leo_par *)info->par; | |
421 | ||
422 | return sbusfb_mmap_helper(leo_mmap_map, | |
423 | par->physbase, par->fbsize, | |
50312ce9 | 424 | par->which_io, vma); |
1da177e4 LT |
425 | } |
426 | ||
67a6680d | 427 | static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
428 | { |
429 | struct leo_par *par = (struct leo_par *) info->par; | |
430 | ||
431 | return sbusfb_ioctl_helper(cmd, arg, info, | |
432 | FBTYPE_SUNLEO, 32, par->fbsize); | |
433 | } | |
434 | ||
435 | /* | |
436 | * Initialisation | |
437 | */ | |
438 | ||
439 | static void | |
50312ce9 | 440 | leo_init_fix(struct fb_info *info, struct device_node *dp) |
1da177e4 | 441 | { |
50312ce9 | 442 | strlcpy(info->fix.id, dp->name, sizeof(info->fix.id)); |
1da177e4 LT |
443 | |
444 | info->fix.type = FB_TYPE_PACKED_PIXELS; | |
445 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
446 | ||
447 | info->fix.line_length = 8192; | |
448 | ||
449 | info->fix.accel = FB_ACCEL_SUN_LEO; | |
450 | } | |
451 | ||
452 | static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl) | |
453 | { | |
454 | struct leo_par *par = (struct leo_par *) info->par; | |
455 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | |
456 | struct fb_wid_item *wi; | |
457 | unsigned long flags; | |
458 | u32 val; | |
459 | int i, j; | |
460 | ||
461 | spin_lock_irqsave(&par->lock, flags); | |
462 | ||
463 | leo_wait(lx_krn); | |
464 | ||
465 | for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) { | |
738eca74 | 466 | switch (wi->wi_type) { |
1da177e4 LT |
467 | case FB_WID_DBL_8: |
468 | j = (wi->wi_index & 0xf) + 0x40; | |
469 | break; | |
470 | ||
471 | case FB_WID_DBL_24: | |
472 | j = wi->wi_index & 0x3f; | |
473 | break; | |
474 | ||
475 | default: | |
476 | continue; | |
477 | }; | |
478 | sbus_writel(0x5800 + j, &lx_krn->krn_type); | |
479 | sbus_writel(wi->wi_values[0], &lx_krn->krn_value); | |
480 | } | |
481 | sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type); | |
482 | ||
483 | val = sbus_readl(&lx_krn->krn_csr); | |
484 | val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); | |
485 | sbus_writel(val, &lx_krn->krn_csr); | |
486 | ||
487 | spin_unlock_irqrestore(&par->lock, flags); | |
488 | } | |
489 | ||
490 | static void leo_init_wids(struct fb_info *info) | |
491 | { | |
492 | struct fb_wid_item wi; | |
493 | struct fb_wid_list wl; | |
494 | ||
495 | wl.wl_count = 1; | |
496 | wl.wl_list = &wi; | |
497 | wi.wi_type = FB_WID_DBL_8; | |
498 | wi.wi_index = 0; | |
499 | wi.wi_values [0] = 0x2c0; | |
500 | leo_wid_put(info, &wl); | |
501 | wi.wi_index = 1; | |
502 | wi.wi_values [0] = 0x30; | |
503 | leo_wid_put(info, &wl); | |
504 | wi.wi_index = 2; | |
505 | wi.wi_values [0] = 0x20; | |
506 | leo_wid_put(info, &wl); | |
507 | wi.wi_type = FB_WID_DBL_24; | |
508 | wi.wi_index = 1; | |
509 | wi.wi_values [0] = 0x30; | |
510 | leo_wid_put(info, &wl); | |
1da177e4 LT |
511 | } |
512 | ||
1da177e4 LT |
513 | static void leo_init_hw(struct fb_info *info) |
514 | { | |
515 | struct leo_par *par = (struct leo_par *) info->par; | |
516 | u32 val; | |
517 | ||
518 | val = sbus_readl(&par->ld_ss1->ss1_misc); | |
519 | val |= LEO_SS1_MISC_ENABLE; | |
520 | sbus_writel(val, &par->ld_ss1->ss1_misc); | |
521 | ||
522 | leo_switch_from_graph(info); | |
523 | } | |
524 | ||
525 | static void leo_fixup_var_rgb(struct fb_var_screeninfo *var) | |
526 | { | |
527 | var->red.offset = 0; | |
528 | var->red.length = 8; | |
529 | var->green.offset = 8; | |
530 | var->green.length = 8; | |
531 | var->blue.offset = 16; | |
532 | var->blue.length = 8; | |
533 | var->transp.offset = 0; | |
534 | var->transp.length = 0; | |
535 | } | |
536 | ||
c7f439b9 DM |
537 | static void leo_unmap_regs(struct of_device *op, struct fb_info *info, |
538 | struct leo_par *par) | |
1da177e4 | 539 | { |
c7f439b9 DM |
540 | if (par->lc_ss0_usr) |
541 | of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000); | |
542 | if (par->ld_ss0) | |
543 | of_iounmap(&op->resource[0], par->ld_ss0, 0x1000); | |
544 | if (par->ld_ss1) | |
545 | of_iounmap(&op->resource[0], par->ld_ss1, 0x1000); | |
546 | if (par->lx_krn) | |
547 | of_iounmap(&op->resource[0], par->lx_krn, 0x1000); | |
548 | if (par->cursor) | |
e3a411a3 | 549 | of_iounmap(&op->resource[0], |
c7f439b9 DM |
550 | par->cursor, sizeof(struct leo_cursor)); |
551 | if (info->screen_base) | |
552 | of_iounmap(&op->resource[0], info->screen_base, 0x800000); | |
50312ce9 | 553 | } |
1da177e4 | 554 | |
738eca74 RR |
555 | static int __devinit leo_probe(struct of_device *op, |
556 | const struct of_device_id *match) | |
50312ce9 DM |
557 | { |
558 | struct device_node *dp = op->node; | |
c7f439b9 DM |
559 | struct fb_info *info; |
560 | struct leo_par *par; | |
50312ce9 | 561 | int linebytes, err; |
1da177e4 | 562 | |
c7f439b9 DM |
563 | info = framebuffer_alloc(sizeof(struct leo_par), &op->dev); |
564 | ||
565 | err = -ENOMEM; | |
566 | if (!info) | |
567 | goto out_err; | |
568 | par = info->par; | |
1da177e4 | 569 | |
c7f439b9 | 570 | spin_lock_init(&par->lock); |
1da177e4 | 571 | |
c7f439b9 DM |
572 | par->physbase = op->resource[0].start; |
573 | par->which_io = op->resource[0].flags & IORESOURCE_BITS; | |
1da177e4 | 574 | |
6cd5a86b | 575 | sbusfb_fill_var(&info->var, dp, 32); |
c7f439b9 | 576 | leo_fixup_var_rgb(&info->var); |
1da177e4 | 577 | |
50312ce9 | 578 | linebytes = of_getintprop_default(dp, "linebytes", |
c7f439b9 DM |
579 | info->var.xres); |
580 | par->fbsize = PAGE_ALIGN(linebytes * info->var.yres); | |
1da177e4 | 581 | |
c7f439b9 | 582 | par->lc_ss0_usr = |
50312ce9 DM |
583 | of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR, |
584 | 0x1000, "leolc ss0usr"); | |
c7f439b9 | 585 | par->ld_ss0 = |
50312ce9 DM |
586 | of_ioremap(&op->resource[0], LEO_OFF_LD_SS0, |
587 | 0x1000, "leold ss0"); | |
c7f439b9 | 588 | par->ld_ss1 = |
50312ce9 DM |
589 | of_ioremap(&op->resource[0], LEO_OFF_LD_SS1, |
590 | 0x1000, "leold ss1"); | |
c7f439b9 | 591 | par->lx_krn = |
50312ce9 DM |
592 | of_ioremap(&op->resource[0], LEO_OFF_LX_KRN, |
593 | 0x1000, "leolx krn"); | |
c7f439b9 | 594 | par->cursor = |
50312ce9 DM |
595 | of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR, |
596 | sizeof(struct leo_cursor), "leolx cursor"); | |
c7f439b9 | 597 | info->screen_base = |
50312ce9 DM |
598 | of_ioremap(&op->resource[0], LEO_OFF_SS0, |
599 | 0x800000, "leo ram"); | |
c7f439b9 DM |
600 | if (!par->lc_ss0_usr || |
601 | !par->ld_ss0 || | |
602 | !par->ld_ss1 || | |
603 | !par->lx_krn || | |
604 | !par->cursor || | |
605 | !info->screen_base) | |
606 | goto out_unmap_regs; | |
1da177e4 | 607 | |
738eca74 | 608 | info->flags = FBINFO_DEFAULT; |
c7f439b9 | 609 | info->fbops = &leo_ops; |
738eca74 | 610 | info->pseudo_palette = par->clut_data; |
1da177e4 | 611 | |
c7f439b9 DM |
612 | leo_init_wids(info); |
613 | leo_init_hw(info); | |
1da177e4 | 614 | |
59f7137a | 615 | leo_blank(FB_BLANK_UNBLANK, info); |
1da177e4 | 616 | |
c7f439b9 DM |
617 | if (fb_alloc_cmap(&info->cmap, 256, 0)) |
618 | goto out_unmap_regs; | |
1da177e4 | 619 | |
c7f439b9 | 620 | leo_init_fix(info, dp); |
1da177e4 | 621 | |
c7f439b9 DM |
622 | err = register_framebuffer(info); |
623 | if (err < 0) | |
624 | goto out_dealloc_cmap; | |
1da177e4 | 625 | |
c7f439b9 | 626 | dev_set_drvdata(&op->dev, info); |
50312ce9 | 627 | |
194f1a68 | 628 | printk(KERN_INFO "%s: leo at %lx:%lx\n", |
50312ce9 | 629 | dp->full_name, |
c7f439b9 | 630 | par->which_io, par->physbase); |
1da177e4 | 631 | |
50312ce9 | 632 | return 0; |
1da177e4 | 633 | |
c7f439b9 DM |
634 | out_dealloc_cmap: |
635 | fb_dealloc_cmap(&info->cmap); | |
636 | ||
637 | out_unmap_regs: | |
638 | leo_unmap_regs(op, info, par); | |
639 | framebuffer_release(info); | |
1da177e4 | 640 | |
c7f439b9 DM |
641 | out_err: |
642 | return err; | |
50312ce9 | 643 | } |
1da177e4 | 644 | |
e3a411a3 | 645 | static int __devexit leo_remove(struct of_device *op) |
50312ce9 | 646 | { |
c7f439b9 DM |
647 | struct fb_info *info = dev_get_drvdata(&op->dev); |
648 | struct leo_par *par = info->par; | |
50312ce9 | 649 | |
c7f439b9 DM |
650 | unregister_framebuffer(info); |
651 | fb_dealloc_cmap(&info->cmap); | |
50312ce9 | 652 | |
c7f439b9 | 653 | leo_unmap_regs(op, info, par); |
50312ce9 | 654 | |
c7f439b9 | 655 | framebuffer_release(info); |
50312ce9 | 656 | |
e3a411a3 | 657 | dev_set_drvdata(&op->dev, NULL); |
1da177e4 LT |
658 | |
659 | return 0; | |
660 | } | |
661 | ||
fd098316 | 662 | static const struct of_device_id leo_match[] = { |
50312ce9 | 663 | { |
738eca74 | 664 | .name = "SUNW,leo", |
50312ce9 DM |
665 | }, |
666 | {}, | |
667 | }; | |
668 | MODULE_DEVICE_TABLE(of, leo_match); | |
669 | ||
670 | static struct of_platform_driver leo_driver = { | |
671 | .name = "leo", | |
672 | .match_table = leo_match, | |
673 | .probe = leo_probe, | |
674 | .remove = __devexit_p(leo_remove), | |
675 | }; | |
1da177e4 | 676 | |
50312ce9 DM |
677 | static int __init leo_init(void) |
678 | { | |
679 | if (fb_get_options("leofb", NULL)) | |
680 | return -ENODEV; | |
1da177e4 | 681 | |
50312ce9 | 682 | return of_register_driver(&leo_driver, &of_bus_type); |
1da177e4 LT |
683 | } |
684 | ||
50312ce9 | 685 | static void __exit leo_exit(void) |
1da177e4 | 686 | { |
50312ce9 | 687 | of_unregister_driver(&leo_driver); |
1da177e4 LT |
688 | } |
689 | ||
690 | module_init(leo_init); | |
1da177e4 | 691 | module_exit(leo_exit); |
1da177e4 LT |
692 | |
693 | MODULE_DESCRIPTION("framebuffer driver for LEO chipsets"); | |
50312ce9 DM |
694 | MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); |
695 | MODULE_VERSION("2.0"); | |
1da177e4 | 696 | MODULE_LICENSE("GPL"); |