diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/video/leo.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/video/leo.c')
-rw-r--r-- | drivers/video/leo.c | 666 |
1 files changed, 666 insertions, 0 deletions
diff --git a/drivers/video/leo.c b/drivers/video/leo.c new file mode 100644 index 000000000000..7e1e7fb168bd --- /dev/null +++ b/drivers/video/leo.c | |||
@@ -0,0 +1,666 @@ | |||
1 | /* leo.c: LEO frame buffer driver | ||
2 | * | ||
3 | * Copyright (C) 2003 David S. Miller (davem@redhat.com) | ||
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> | ||
21 | #include <asm/sbus.h> | ||
22 | #include <asm/oplib.h> | ||
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 | |||
35 | static int leo_mmap(struct fb_info *, struct file *, struct vm_area_struct *); | ||
36 | static int leo_ioctl(struct inode *, struct file *, unsigned int, | ||
37 | unsigned long, struct fb_info *); | ||
38 | static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *); | ||
39 | |||
40 | /* | ||
41 | * Frame buffer operations | ||
42 | */ | ||
43 | |||
44 | static struct fb_ops leo_ops = { | ||
45 | .owner = THIS_MODULE, | ||
46 | .fb_setcolreg = leo_setcolreg, | ||
47 | .fb_blank = leo_blank, | ||
48 | .fb_pan_display = leo_pan_display, | ||
49 | .fb_fillrect = cfb_fillrect, | ||
50 | .fb_copyarea = cfb_copyarea, | ||
51 | .fb_imageblit = cfb_imageblit, | ||
52 | .fb_mmap = leo_mmap, | ||
53 | .fb_ioctl = leo_ioctl, | ||
54 | .fb_cursor = soft_cursor, | ||
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 { | ||
81 | u8 xxx0[16]; | ||
82 | volatile u32 cur_type; | ||
83 | volatile u32 cur_misc; | ||
84 | volatile u32 cur_cursxy; | ||
85 | volatile u32 cur_data; | ||
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 { | ||
101 | volatile u32 krn_type; | ||
102 | volatile u32 krn_csr; | ||
103 | volatile u32 krn_value; | ||
104 | }; | ||
105 | |||
106 | struct leo_lc_ss0_krn { | ||
107 | volatile u32 misc; | ||
108 | u8 xxx0[0x800-4]; | ||
109 | volatile u32 rev; | ||
110 | }; | ||
111 | |||
112 | struct leo_lc_ss0_usr { | ||
113 | volatile u32 csr; | ||
114 | volatile u32 addrspace; | ||
115 | volatile u32 fontmsk; | ||
116 | volatile u32 fontt; | ||
117 | volatile u32 extent; | ||
118 | volatile u32 src; | ||
119 | u32 dst; | ||
120 | volatile u32 copy; | ||
121 | volatile u32 fill; | ||
122 | }; | ||
123 | |||
124 | struct leo_lc_ss1_krn { | ||
125 | u8 unknown; | ||
126 | }; | ||
127 | |||
128 | struct leo_lc_ss1_usr { | ||
129 | u8 unknown; | ||
130 | }; | ||
131 | |||
132 | struct leo_ld { | ||
133 | u8 xxx0[0xe00]; | ||
134 | volatile u32 csr; | ||
135 | volatile u32 wid; | ||
136 | volatile u32 wmask; | ||
137 | volatile u32 widclip; | ||
138 | volatile u32 vclipmin; | ||
139 | volatile u32 vclipmax; | ||
140 | volatile u32 pickmin; /* SS1 only */ | ||
141 | volatile u32 pickmax; /* SS1 only */ | ||
142 | volatile u32 fg; | ||
143 | volatile u32 bg; | ||
144 | volatile u32 src; /* Copy/Scroll (SS0 only) */ | ||
145 | volatile u32 dst; /* Copy/Scroll/Fill (SS0 only) */ | ||
146 | volatile u32 extent; /* Copy/Scroll/Fill size (SS0 only) */ | ||
147 | u32 xxx1[3]; | ||
148 | volatile u32 setsem; /* SS1 only */ | ||
149 | volatile u32 clrsem; /* SS1 only */ | ||
150 | volatile u32 clrpick; /* SS1 only */ | ||
151 | volatile u32 clrdat; /* SS1 only */ | ||
152 | volatile u32 alpha; /* SS1 only */ | ||
153 | u8 xxx2[0x2c]; | ||
154 | volatile u32 winbg; | ||
155 | volatile u32 planemask; | ||
156 | volatile u32 rop; | ||
157 | volatile u32 z; | ||
158 | volatile u32 dczf; /* SS1 only */ | ||
159 | volatile u32 dczb; /* SS1 only */ | ||
160 | volatile u32 dcs; /* SS1 only */ | ||
161 | volatile u32 dczs; /* SS1 only */ | ||
162 | volatile u32 pickfb; /* SS1 only */ | ||
163 | volatile u32 pickbb; /* SS1 only */ | ||
164 | volatile u32 dcfc; /* SS1 only */ | ||
165 | volatile u32 forcecol; /* SS1 only */ | ||
166 | volatile u32 door[8]; /* SS1 only */ | ||
167 | volatile u32 pick[5]; /* SS1 only */ | ||
168 | }; | ||
169 | |||
170 | #define LEO_SS1_MISC_ENABLE 0x00000001 | ||
171 | #define LEO_SS1_MISC_STEREO 0x00000002 | ||
172 | struct leo_ld_ss1 { | ||
173 | u8 xxx0[0xef4]; | ||
174 | volatile u32 ss1_misc; | ||
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; | ||
195 | unsigned long fbsize; | ||
196 | |||
197 | struct sbus_dev *sdev; | ||
198 | struct list_head list; | ||
199 | }; | ||
200 | |||
201 | static void leo_wait(struct leo_lx_krn __iomem *lx_krn) | ||
202 | { | ||
203 | int i; | ||
204 | |||
205 | for (i = 0; | ||
206 | (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && i < 300000; | ||
207 | i++) | ||
208 | udelay (1); /* Busy wait at most 0.3 sec */ | ||
209 | return; | ||
210 | } | ||
211 | |||
212 | /** | ||
213 | * leo_setcolreg - Optional function. Sets a color register. | ||
214 | * @regno: boolean, 0 copy local, 1 get_user() function | ||
215 | * @red: frame buffer colormap structure | ||
216 | * @green: The green value which can be up to 16 bits wide | ||
217 | * @blue: The blue value which can be up to 16 bits wide. | ||
218 | * @transp: If supported the alpha value which can be up to 16 bits wide. | ||
219 | * @info: frame buffer info structure | ||
220 | */ | ||
221 | static int leo_setcolreg(unsigned regno, | ||
222 | unsigned red, unsigned green, unsigned blue, | ||
223 | unsigned transp, struct fb_info *info) | ||
224 | { | ||
225 | struct leo_par *par = (struct leo_par *) info->par; | ||
226 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | ||
227 | unsigned long flags; | ||
228 | u32 val; | ||
229 | int i; | ||
230 | |||
231 | if (regno >= 256) | ||
232 | return 1; | ||
233 | |||
234 | red >>= 8; | ||
235 | green >>= 8; | ||
236 | blue >>= 8; | ||
237 | |||
238 | par->clut_data[regno] = red | (green << 8) | (blue << 16); | ||
239 | |||
240 | spin_lock_irqsave(&par->lock, flags); | ||
241 | |||
242 | leo_wait(lx_krn); | ||
243 | |||
244 | sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type); | ||
245 | for (i = 0; i < 256; i++) | ||
246 | sbus_writel(par->clut_data[i], &lx_krn->krn_value); | ||
247 | sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type); | ||
248 | |||
249 | val = sbus_readl(&lx_krn->krn_csr); | ||
250 | val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); | ||
251 | sbus_writel(val, &lx_krn->krn_csr); | ||
252 | |||
253 | spin_unlock_irqrestore(&par->lock, flags); | ||
254 | |||
255 | return 0; | ||
256 | } | ||
257 | |||
258 | /** | ||
259 | * leo_blank - Optional function. Blanks the display. | ||
260 | * @blank_mode: the blank mode we want. | ||
261 | * @info: frame buffer structure that represents a single frame buffer | ||
262 | */ | ||
263 | static int leo_blank(int blank, struct fb_info *info) | ||
264 | { | ||
265 | struct leo_par *par = (struct leo_par *) info->par; | ||
266 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | ||
267 | unsigned long flags; | ||
268 | u32 val; | ||
269 | |||
270 | spin_lock_irqsave(&par->lock, flags); | ||
271 | |||
272 | switch (blank) { | ||
273 | case FB_BLANK_UNBLANK: /* Unblanking */ | ||
274 | val = sbus_readl(&lx_krn->krn_csr); | ||
275 | val |= LEO_KRN_CSR_ENABLE; | ||
276 | sbus_writel(val, &lx_krn->krn_csr); | ||
277 | par->flags &= ~LEO_FLAG_BLANKED; | ||
278 | break; | ||
279 | |||
280 | case FB_BLANK_NORMAL: /* Normal blanking */ | ||
281 | case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ | ||
282 | case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ | ||
283 | case FB_BLANK_POWERDOWN: /* Poweroff */ | ||
284 | val = sbus_readl(&lx_krn->krn_csr); | ||
285 | val &= ~LEO_KRN_CSR_ENABLE; | ||
286 | sbus_writel(val, &lx_krn->krn_csr); | ||
287 | par->flags |= LEO_FLAG_BLANKED; | ||
288 | break; | ||
289 | } | ||
290 | |||
291 | spin_unlock_irqrestore(&par->lock, flags); | ||
292 | |||
293 | return 0; | ||
294 | } | ||
295 | |||
296 | static struct sbus_mmap_map leo_mmap_map[] = { | ||
297 | { | ||
298 | .voff = LEO_SS0_MAP, | ||
299 | .poff = LEO_OFF_SS0, | ||
300 | .size = 0x800000 | ||
301 | }, | ||
302 | { | ||
303 | .voff = LEO_LC_SS0_USR_MAP, | ||
304 | .poff = LEO_OFF_LC_SS0_USR, | ||
305 | .size = 0x1000 | ||
306 | }, | ||
307 | { | ||
308 | .voff = LEO_LD_SS0_MAP, | ||
309 | .poff = LEO_OFF_LD_SS0, | ||
310 | .size = 0x1000 | ||
311 | }, | ||
312 | { | ||
313 | .voff = LEO_LX_CURSOR_MAP, | ||
314 | .poff = LEO_OFF_LX_CURSOR, | ||
315 | .size = 0x1000 | ||
316 | }, | ||
317 | { | ||
318 | .voff = LEO_SS1_MAP, | ||
319 | .poff = LEO_OFF_SS1, | ||
320 | .size = 0x800000 | ||
321 | }, | ||
322 | { | ||
323 | .voff = LEO_LC_SS1_USR_MAP, | ||
324 | .poff = LEO_OFF_LC_SS1_USR, | ||
325 | .size = 0x1000 | ||
326 | }, | ||
327 | { | ||
328 | .voff = LEO_LD_SS1_MAP, | ||
329 | .poff = LEO_OFF_LD_SS1, | ||
330 | .size = 0x1000 | ||
331 | }, | ||
332 | { | ||
333 | .voff = LEO_UNK_MAP, | ||
334 | .poff = LEO_OFF_UNK, | ||
335 | .size = 0x1000 | ||
336 | }, | ||
337 | { | ||
338 | .voff = LEO_LX_KRN_MAP, | ||
339 | .poff = LEO_OFF_LX_KRN, | ||
340 | .size = 0x1000 | ||
341 | }, | ||
342 | { | ||
343 | .voff = LEO_LC_SS0_KRN_MAP, | ||
344 | .poff = LEO_OFF_LC_SS0_KRN, | ||
345 | .size = 0x1000 | ||
346 | }, | ||
347 | { | ||
348 | .voff = LEO_LC_SS1_KRN_MAP, | ||
349 | .poff = LEO_OFF_LC_SS1_KRN, | ||
350 | .size = 0x1000 | ||
351 | }, | ||
352 | { | ||
353 | .voff = LEO_LD_GBL_MAP, | ||
354 | .poff = LEO_OFF_LD_GBL, | ||
355 | .size = 0x1000 | ||
356 | }, | ||
357 | { | ||
358 | .voff = LEO_UNK2_MAP, | ||
359 | .poff = LEO_OFF_UNK2, | ||
360 | .size = 0x100000 | ||
361 | }, | ||
362 | { .size = 0 } | ||
363 | }; | ||
364 | |||
365 | static int leo_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma) | ||
366 | { | ||
367 | struct leo_par *par = (struct leo_par *)info->par; | ||
368 | |||
369 | return sbusfb_mmap_helper(leo_mmap_map, | ||
370 | par->physbase, par->fbsize, | ||
371 | par->sdev->reg_addrs[0].which_io, | ||
372 | vma); | ||
373 | } | ||
374 | |||
375 | static int leo_ioctl(struct inode *inode, struct file *file, unsigned int cmd, | ||
376 | unsigned long arg, struct fb_info *info) | ||
377 | { | ||
378 | struct leo_par *par = (struct leo_par *) info->par; | ||
379 | |||
380 | return sbusfb_ioctl_helper(cmd, arg, info, | ||
381 | FBTYPE_SUNLEO, 32, par->fbsize); | ||
382 | } | ||
383 | |||
384 | /* | ||
385 | * Initialisation | ||
386 | */ | ||
387 | |||
388 | static void | ||
389 | leo_init_fix(struct fb_info *info) | ||
390 | { | ||
391 | struct leo_par *par = (struct leo_par *)info->par; | ||
392 | |||
393 | strlcpy(info->fix.id, par->sdev->prom_name, sizeof(info->fix.id)); | ||
394 | |||
395 | info->fix.type = FB_TYPE_PACKED_PIXELS; | ||
396 | info->fix.visual = FB_VISUAL_TRUECOLOR; | ||
397 | |||
398 | info->fix.line_length = 8192; | ||
399 | |||
400 | info->fix.accel = FB_ACCEL_SUN_LEO; | ||
401 | } | ||
402 | |||
403 | static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl) | ||
404 | { | ||
405 | struct leo_par *par = (struct leo_par *) info->par; | ||
406 | struct leo_lx_krn __iomem *lx_krn = par->lx_krn; | ||
407 | struct fb_wid_item *wi; | ||
408 | unsigned long flags; | ||
409 | u32 val; | ||
410 | int i, j; | ||
411 | |||
412 | spin_lock_irqsave(&par->lock, flags); | ||
413 | |||
414 | leo_wait(lx_krn); | ||
415 | |||
416 | for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) { | ||
417 | switch(wi->wi_type) { | ||
418 | case FB_WID_DBL_8: | ||
419 | j = (wi->wi_index & 0xf) + 0x40; | ||
420 | break; | ||
421 | |||
422 | case FB_WID_DBL_24: | ||
423 | j = wi->wi_index & 0x3f; | ||
424 | break; | ||
425 | |||
426 | default: | ||
427 | continue; | ||
428 | }; | ||
429 | sbus_writel(0x5800 + j, &lx_krn->krn_type); | ||
430 | sbus_writel(wi->wi_values[0], &lx_krn->krn_value); | ||
431 | } | ||
432 | sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type); | ||
433 | |||
434 | val = sbus_readl(&lx_krn->krn_csr); | ||
435 | val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); | ||
436 | sbus_writel(val, &lx_krn->krn_csr); | ||
437 | |||
438 | spin_unlock_irqrestore(&par->lock, flags); | ||
439 | } | ||
440 | |||
441 | static void leo_init_wids(struct fb_info *info) | ||
442 | { | ||
443 | struct fb_wid_item wi; | ||
444 | struct fb_wid_list wl; | ||
445 | |||
446 | wl.wl_count = 1; | ||
447 | wl.wl_list = &wi; | ||
448 | wi.wi_type = FB_WID_DBL_8; | ||
449 | wi.wi_index = 0; | ||
450 | wi.wi_values [0] = 0x2c0; | ||
451 | leo_wid_put(info, &wl); | ||
452 | wi.wi_index = 1; | ||
453 | wi.wi_values [0] = 0x30; | ||
454 | leo_wid_put(info, &wl); | ||
455 | wi.wi_index = 2; | ||
456 | wi.wi_values [0] = 0x20; | ||
457 | leo_wid_put(info, &wl); | ||
458 | wi.wi_type = FB_WID_DBL_24; | ||
459 | wi.wi_index = 1; | ||
460 | wi.wi_values [0] = 0x30; | ||
461 | leo_wid_put(info, &wl); | ||
462 | |||
463 | } | ||
464 | |||
465 | static void leo_switch_from_graph(struct fb_info *info) | ||
466 | { | ||
467 | struct leo_par *par = (struct leo_par *) info->par; | ||
468 | struct leo_ld __iomem *ss = (struct leo_ld __iomem *) par->ld_ss0; | ||
469 | unsigned long flags; | ||
470 | u32 val; | ||
471 | |||
472 | spin_lock_irqsave(&par->lock, flags); | ||
473 | |||
474 | par->extent = ((info->var.xres - 1) | | ||
475 | ((info->var.yres - 1) << 16)); | ||
476 | |||
477 | sbus_writel(0xffffffff, &ss->wid); | ||
478 | sbus_writel(0xffff, &ss->wmask); | ||
479 | sbus_writel(0, &ss->vclipmin); | ||
480 | sbus_writel(par->extent, &ss->vclipmax); | ||
481 | sbus_writel(0, &ss->fg); | ||
482 | sbus_writel(0xff000000, &ss->planemask); | ||
483 | sbus_writel(0x310850, &ss->rop); | ||
484 | sbus_writel(0, &ss->widclip); | ||
485 | sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11), | ||
486 | &par->lc_ss0_usr->extent); | ||
487 | sbus_writel(4, &par->lc_ss0_usr->addrspace); | ||
488 | sbus_writel(0x80000000, &par->lc_ss0_usr->fill); | ||
489 | sbus_writel(0, &par->lc_ss0_usr->fontt); | ||
490 | do { | ||
491 | val = sbus_readl(&par->lc_ss0_usr->csr); | ||
492 | } while (val & 0x20000000); | ||
493 | |||
494 | spin_unlock_irqrestore(&par->lock, flags); | ||
495 | } | ||
496 | |||
497 | static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) | ||
498 | { | ||
499 | /* We just use this to catch switches out of | ||
500 | * graphics mode. | ||
501 | */ | ||
502 | leo_switch_from_graph(info); | ||
503 | |||
504 | if (var->xoffset || var->yoffset || var->vmode) | ||
505 | return -EINVAL; | ||
506 | return 0; | ||
507 | } | ||
508 | |||
509 | static void leo_init_hw(struct fb_info *info) | ||
510 | { | ||
511 | struct leo_par *par = (struct leo_par *) info->par; | ||
512 | u32 val; | ||
513 | |||
514 | val = sbus_readl(&par->ld_ss1->ss1_misc); | ||
515 | val |= LEO_SS1_MISC_ENABLE; | ||
516 | sbus_writel(val, &par->ld_ss1->ss1_misc); | ||
517 | |||
518 | leo_switch_from_graph(info); | ||
519 | } | ||
520 | |||
521 | static void leo_fixup_var_rgb(struct fb_var_screeninfo *var) | ||
522 | { | ||
523 | var->red.offset = 0; | ||
524 | var->red.length = 8; | ||
525 | var->green.offset = 8; | ||
526 | var->green.length = 8; | ||
527 | var->blue.offset = 16; | ||
528 | var->blue.length = 8; | ||
529 | var->transp.offset = 0; | ||
530 | var->transp.length = 0; | ||
531 | } | ||
532 | |||
533 | struct all_info { | ||
534 | struct fb_info info; | ||
535 | struct leo_par par; | ||
536 | struct list_head list; | ||
537 | }; | ||
538 | static LIST_HEAD(leo_list); | ||
539 | |||
540 | static void leo_init_one(struct sbus_dev *sdev) | ||
541 | { | ||
542 | struct all_info *all; | ||
543 | int linebytes; | ||
544 | |||
545 | all = kmalloc(sizeof(*all), GFP_KERNEL); | ||
546 | if (!all) { | ||
547 | printk(KERN_ERR "leo: Cannot allocate memory.\n"); | ||
548 | return; | ||
549 | } | ||
550 | memset(all, 0, sizeof(*all)); | ||
551 | |||
552 | INIT_LIST_HEAD(&all->list); | ||
553 | |||
554 | spin_lock_init(&all->par.lock); | ||
555 | all->par.sdev = sdev; | ||
556 | |||
557 | all->par.physbase = sdev->reg_addrs[0].phys_addr; | ||
558 | |||
559 | sbusfb_fill_var(&all->info.var, sdev->prom_node, 32); | ||
560 | leo_fixup_var_rgb(&all->info.var); | ||
561 | |||
562 | linebytes = prom_getintdefault(sdev->prom_node, "linebytes", | ||
563 | all->info.var.xres); | ||
564 | all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres); | ||
565 | |||
566 | #ifdef CONFIG_SPARC32 | ||
567 | all->info.screen_base = (char __iomem *) | ||
568 | prom_getintdefault(sdev->prom_node, "address", 0); | ||
569 | #endif | ||
570 | if (!all->info.screen_base) | ||
571 | all->info.screen_base = | ||
572 | sbus_ioremap(&sdev->resource[0], LEO_OFF_SS0, | ||
573 | 0x800000, "leo ram"); | ||
574 | |||
575 | all->par.lc_ss0_usr = | ||
576 | sbus_ioremap(&sdev->resource[0], LEO_OFF_LC_SS0_USR, | ||
577 | 0x1000, "leolc ss0usr"); | ||
578 | all->par.ld_ss0 = | ||
579 | sbus_ioremap(&sdev->resource[0], LEO_OFF_LD_SS0, | ||
580 | 0x1000, "leold ss0"); | ||
581 | all->par.ld_ss1 = | ||
582 | sbus_ioremap(&sdev->resource[0], LEO_OFF_LD_SS1, | ||
583 | 0x1000, "leold ss1"); | ||
584 | all->par.lx_krn = | ||
585 | sbus_ioremap(&sdev->resource[0], LEO_OFF_LX_KRN, | ||
586 | 0x1000, "leolx krn"); | ||
587 | all->par.cursor = | ||
588 | sbus_ioremap(&sdev->resource[0], LEO_OFF_LX_CURSOR, | ||
589 | sizeof(struct leo_cursor), "leolx cursor"); | ||
590 | |||
591 | all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; | ||
592 | all->info.fbops = &leo_ops; | ||
593 | all->info.par = &all->par; | ||
594 | |||
595 | leo_init_wids(&all->info); | ||
596 | leo_init_hw(&all->info); | ||
597 | |||
598 | leo_blank(0, &all->info); | ||
599 | |||
600 | if (fb_alloc_cmap(&all->info.cmap, 256, 0)) { | ||
601 | printk(KERN_ERR "leo: Could not allocate color map.\n"); | ||
602 | kfree(all); | ||
603 | return; | ||
604 | } | ||
605 | |||
606 | leo_init_fix(&all->info); | ||
607 | |||
608 | if (register_framebuffer(&all->info) < 0) { | ||
609 | printk(KERN_ERR "leo: Could not register framebuffer.\n"); | ||
610 | fb_dealloc_cmap(&all->info.cmap); | ||
611 | kfree(all); | ||
612 | return; | ||
613 | } | ||
614 | |||
615 | list_add(&all->list, &leo_list); | ||
616 | |||
617 | printk("leo: %s at %lx:%lx\n", | ||
618 | sdev->prom_name, | ||
619 | (long) sdev->reg_addrs[0].which_io, | ||
620 | (long) sdev->reg_addrs[0].phys_addr); | ||
621 | } | ||
622 | |||
623 | int __init leo_init(void) | ||
624 | { | ||
625 | struct sbus_bus *sbus; | ||
626 | struct sbus_dev *sdev; | ||
627 | |||
628 | if (fb_get_options("leofb", NULL)) | ||
629 | return -ENODEV; | ||
630 | |||
631 | for_all_sbusdev(sdev, sbus) { | ||
632 | if (!strcmp(sdev->prom_name, "leo")) | ||
633 | leo_init_one(sdev); | ||
634 | } | ||
635 | |||
636 | return 0; | ||
637 | } | ||
638 | |||
639 | void __exit leo_exit(void) | ||
640 | { | ||
641 | struct list_head *pos, *tmp; | ||
642 | |||
643 | list_for_each_safe(pos, tmp, &leo_list) { | ||
644 | struct all_info *all = list_entry(pos, typeof(*all), list); | ||
645 | |||
646 | unregister_framebuffer(&all->info); | ||
647 | fb_dealloc_cmap(&all->info.cmap); | ||
648 | kfree(all); | ||
649 | } | ||
650 | } | ||
651 | |||
652 | int __init | ||
653 | leo_setup(char *arg) | ||
654 | { | ||
655 | /* No cmdline options yet... */ | ||
656 | return 0; | ||
657 | } | ||
658 | |||
659 | module_init(leo_init); | ||
660 | #ifdef MODULE | ||
661 | module_exit(leo_exit); | ||
662 | #endif | ||
663 | |||
664 | MODULE_DESCRIPTION("framebuffer driver for LEO chipsets"); | ||
665 | MODULE_AUTHOR("David S. Miller <davem@redhat.com>"); | ||
666 | MODULE_LICENSE("GPL"); | ||