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1 | /* | |
2 | * linux/drivers/video/console/sticore.c - | |
3 | * core code for console driver using HP's STI firmware | |
4 | * | |
5 | * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> | |
6 | * Copyright (C) 2001-2013 Helge Deller <deller@gmx.de> | |
7 | * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de> | |
8 | * | |
9 | * TODO: | |
10 | * - call STI in virtual mode rather than in real mode | |
11 | * - screen blanking with state_mgmt() in text mode STI ? | |
12 | * - try to make it work on m68k hp workstations ;) | |
13 | * | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/types.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/pci.h> | |
22 | #include <linux/font.h> | |
23 | ||
24 | #include <asm/hardware.h> | |
25 | #include <asm/page.h> | |
26 | #include <asm/parisc-device.h> | |
27 | #include <asm/pdc.h> | |
28 | #include <asm/cacheflush.h> | |
29 | #include <asm/grfioctl.h> | |
30 | ||
31 | #include "../fbdev/sticore.h" | |
32 | ||
33 | #define STI_DRIVERVERSION "Version 0.9b" | |
34 | ||
35 | static struct sti_struct *default_sti __read_mostly; | |
36 | ||
37 | /* number of STI ROMS found and their ptrs to each struct */ | |
38 | static int num_sti_roms __read_mostly; | |
39 | static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly; | |
40 | ||
41 | ||
42 | /* The colour indices used by STI are | |
43 | * 0 - Black | |
44 | * 1 - White | |
45 | * 2 - Red | |
46 | * 3 - Yellow/Brown | |
47 | * 4 - Green | |
48 | * 5 - Cyan | |
49 | * 6 - Blue | |
50 | * 7 - Magenta | |
51 | * | |
52 | * So we have the same colours as VGA (basically one bit each for R, G, B), | |
53 | * but have to translate them, anyway. */ | |
54 | ||
55 | static const u8 col_trans[8] = { | |
56 | 0, 6, 4, 5, | |
57 | 2, 7, 3, 1 | |
58 | }; | |
59 | ||
60 | #define c_fg(sti, c) col_trans[((c>> 8) & 7)] | |
61 | #define c_bg(sti, c) col_trans[((c>>11) & 7)] | |
62 | #define c_index(sti, c) ((c) & 0xff) | |
63 | ||
64 | static const struct sti_init_flags default_init_flags = { | |
65 | .wait = STI_WAIT, | |
66 | .reset = 1, | |
67 | .text = 1, | |
68 | .nontext = 1, | |
69 | .no_chg_bet = 1, | |
70 | .no_chg_bei = 1, | |
71 | .init_cmap_tx = 1, | |
72 | }; | |
73 | ||
74 | static int sti_init_graph(struct sti_struct *sti) | |
75 | { | |
76 | struct sti_init_inptr *inptr = &sti->sti_data->init_inptr; | |
77 | struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext; | |
78 | struct sti_init_outptr *outptr = &sti->sti_data->init_outptr; | |
79 | unsigned long flags; | |
80 | int ret, err; | |
81 | ||
82 | spin_lock_irqsave(&sti->lock, flags); | |
83 | ||
84 | memset(inptr, 0, sizeof(*inptr)); | |
85 | inptr->text_planes = 3; /* # of text planes (max 3 for STI) */ | |
86 | memset(inptr_ext, 0, sizeof(*inptr_ext)); | |
87 | inptr->ext_ptr = STI_PTR(inptr_ext); | |
88 | outptr->errno = 0; | |
89 | ||
90 | ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr, | |
91 | outptr, sti->glob_cfg); | |
92 | ||
93 | if (ret >= 0) | |
94 | sti->text_planes = outptr->text_planes; | |
95 | err = outptr->errno; | |
96 | ||
97 | spin_unlock_irqrestore(&sti->lock, flags); | |
98 | ||
99 | if (ret < 0) { | |
100 | pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err); | |
101 | return -1; | |
102 | } | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
107 | static const struct sti_conf_flags default_conf_flags = { | |
108 | .wait = STI_WAIT, | |
109 | }; | |
110 | ||
111 | static void sti_inq_conf(struct sti_struct *sti) | |
112 | { | |
113 | struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr; | |
114 | struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr; | |
115 | unsigned long flags; | |
116 | s32 ret; | |
117 | ||
118 | outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext); | |
119 | ||
120 | do { | |
121 | spin_lock_irqsave(&sti->lock, flags); | |
122 | memset(inptr, 0, sizeof(*inptr)); | |
123 | ret = sti_call(sti, sti->inq_conf, &default_conf_flags, | |
124 | inptr, outptr, sti->glob_cfg); | |
125 | spin_unlock_irqrestore(&sti->lock, flags); | |
126 | } while (ret == 1); | |
127 | } | |
128 | ||
129 | static const struct sti_font_flags default_font_flags = { | |
130 | .wait = STI_WAIT, | |
131 | .non_text = 0, | |
132 | }; | |
133 | ||
134 | void | |
135 | sti_putc(struct sti_struct *sti, int c, int y, int x) | |
136 | { | |
137 | struct sti_font_inptr *inptr = &sti->sti_data->font_inptr; | |
138 | struct sti_font_inptr inptr_default = { | |
139 | .font_start_addr= STI_PTR(sti->font->raw), | |
140 | .index = c_index(sti, c), | |
141 | .fg_color = c_fg(sti, c), | |
142 | .bg_color = c_bg(sti, c), | |
143 | .dest_x = x * sti->font_width, | |
144 | .dest_y = y * sti->font_height, | |
145 | }; | |
146 | struct sti_font_outptr *outptr = &sti->sti_data->font_outptr; | |
147 | s32 ret; | |
148 | unsigned long flags; | |
149 | ||
150 | do { | |
151 | spin_lock_irqsave(&sti->lock, flags); | |
152 | *inptr = inptr_default; | |
153 | ret = sti_call(sti, sti->font_unpmv, &default_font_flags, | |
154 | inptr, outptr, sti->glob_cfg); | |
155 | spin_unlock_irqrestore(&sti->lock, flags); | |
156 | } while (ret == 1); | |
157 | } | |
158 | ||
159 | static const struct sti_blkmv_flags clear_blkmv_flags = { | |
160 | .wait = STI_WAIT, | |
161 | .color = 1, | |
162 | .clear = 1, | |
163 | }; | |
164 | ||
165 | void | |
166 | sti_set(struct sti_struct *sti, int src_y, int src_x, | |
167 | int height, int width, u8 color) | |
168 | { | |
169 | struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr; | |
170 | struct sti_blkmv_inptr inptr_default = { | |
171 | .fg_color = color, | |
172 | .bg_color = color, | |
173 | .src_x = src_x, | |
174 | .src_y = src_y, | |
175 | .dest_x = src_x, | |
176 | .dest_y = src_y, | |
177 | .width = width, | |
178 | .height = height, | |
179 | }; | |
180 | struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr; | |
181 | s32 ret; | |
182 | unsigned long flags; | |
183 | ||
184 | do { | |
185 | spin_lock_irqsave(&sti->lock, flags); | |
186 | *inptr = inptr_default; | |
187 | ret = sti_call(sti, sti->block_move, &clear_blkmv_flags, | |
188 | inptr, outptr, sti->glob_cfg); | |
189 | spin_unlock_irqrestore(&sti->lock, flags); | |
190 | } while (ret == 1); | |
191 | } | |
192 | ||
193 | void | |
194 | sti_clear(struct sti_struct *sti, int src_y, int src_x, | |
195 | int height, int width, int c) | |
196 | { | |
197 | struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr; | |
198 | struct sti_blkmv_inptr inptr_default = { | |
199 | .fg_color = c_fg(sti, c), | |
200 | .bg_color = c_bg(sti, c), | |
201 | .src_x = src_x * sti->font_width, | |
202 | .src_y = src_y * sti->font_height, | |
203 | .dest_x = src_x * sti->font_width, | |
204 | .dest_y = src_y * sti->font_height, | |
205 | .width = width * sti->font_width, | |
206 | .height = height* sti->font_height, | |
207 | }; | |
208 | struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr; | |
209 | s32 ret; | |
210 | unsigned long flags; | |
211 | ||
212 | do { | |
213 | spin_lock_irqsave(&sti->lock, flags); | |
214 | *inptr = inptr_default; | |
215 | ret = sti_call(sti, sti->block_move, &clear_blkmv_flags, | |
216 | inptr, outptr, sti->glob_cfg); | |
217 | spin_unlock_irqrestore(&sti->lock, flags); | |
218 | } while (ret == 1); | |
219 | } | |
220 | ||
221 | static const struct sti_blkmv_flags default_blkmv_flags = { | |
222 | .wait = STI_WAIT, | |
223 | }; | |
224 | ||
225 | void | |
226 | sti_bmove(struct sti_struct *sti, int src_y, int src_x, | |
227 | int dst_y, int dst_x, int height, int width) | |
228 | { | |
229 | struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr; | |
230 | struct sti_blkmv_inptr inptr_default = { | |
231 | .src_x = src_x * sti->font_width, | |
232 | .src_y = src_y * sti->font_height, | |
233 | .dest_x = dst_x * sti->font_width, | |
234 | .dest_y = dst_y * sti->font_height, | |
235 | .width = width * sti->font_width, | |
236 | .height = height* sti->font_height, | |
237 | }; | |
238 | struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr; | |
239 | s32 ret; | |
240 | unsigned long flags; | |
241 | ||
242 | do { | |
243 | spin_lock_irqsave(&sti->lock, flags); | |
244 | *inptr = inptr_default; | |
245 | ret = sti_call(sti, sti->block_move, &default_blkmv_flags, | |
246 | inptr, outptr, sti->glob_cfg); | |
247 | spin_unlock_irqrestore(&sti->lock, flags); | |
248 | } while (ret == 1); | |
249 | } | |
250 | ||
251 | ||
252 | static void sti_flush(unsigned long start, unsigned long end) | |
253 | { | |
254 | flush_icache_range(start, end); | |
255 | } | |
256 | ||
257 | static void sti_rom_copy(unsigned long base, unsigned long count, void *dest) | |
258 | { | |
259 | unsigned long dest_start = (unsigned long) dest; | |
260 | ||
261 | /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */ | |
262 | while (count >= 4) { | |
263 | count -= 4; | |
264 | *(u32 *)dest = gsc_readl(base); | |
265 | base += 4; | |
266 | dest += 4; | |
267 | } | |
268 | while (count) { | |
269 | count--; | |
270 | *(u8 *)dest = gsc_readb(base); | |
271 | base++; | |
272 | dest++; | |
273 | } | |
274 | ||
275 | sti_flush(dest_start, (unsigned long)dest); | |
276 | } | |
277 | ||
278 | ||
279 | ||
280 | ||
281 | static char default_sti_path[21] __read_mostly; | |
282 | ||
283 | #ifndef MODULE | |
284 | static int sti_setup(char *str) | |
285 | { | |
286 | if (str) | |
287 | strlcpy (default_sti_path, str, sizeof (default_sti_path)); | |
288 | ||
289 | return 1; | |
290 | } | |
291 | ||
292 | /* Assuming the machine has multiple STI consoles (=graphic cards) which | |
293 | * all get detected by sticon, the user may define with the linux kernel | |
294 | * parameter sti=<x> which of them will be the initial boot-console. | |
295 | * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default | |
296 | * STI screen. | |
297 | */ | |
298 | __setup("sti=", sti_setup); | |
299 | #endif | |
300 | ||
301 | ||
302 | ||
303 | static char *font_name[MAX_STI_ROMS]; | |
304 | static int font_index[MAX_STI_ROMS], | |
305 | font_height[MAX_STI_ROMS], | |
306 | font_width[MAX_STI_ROMS]; | |
307 | #ifndef MODULE | |
308 | static int sti_font_setup(char *str) | |
309 | { | |
310 | char *x; | |
311 | int i = 0; | |
312 | ||
313 | /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 | |
314 | * or sti_font=7 style command lines. */ | |
315 | ||
316 | while (i<MAX_STI_ROMS && str && *str) { | |
317 | if (*str>='0' && *str<='9') { | |
318 | if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) { | |
319 | font_height[i] = simple_strtoul(str, NULL, 0); | |
320 | font_width[i] = simple_strtoul(x+1, NULL, 0); | |
321 | } else { | |
322 | font_index[i] = simple_strtoul(str, NULL, 0); | |
323 | } | |
324 | } else { | |
325 | font_name[i] = str; /* fb font name */ | |
326 | } | |
327 | ||
328 | if ((x = strchr(str, ','))) | |
329 | *x++ = 0; | |
330 | str = x; | |
331 | ||
332 | i++; | |
333 | } | |
334 | ||
335 | return 1; | |
336 | } | |
337 | ||
338 | /* The optional linux kernel parameter "sti_font" defines which font | |
339 | * should be used by the sticon driver to draw characters to the screen. | |
340 | * Possible values are: | |
341 | * - sti_font=<fb_fontname>: | |
342 | * <fb_fontname> is the name of one of the linux-kernel built-in | |
343 | * framebuffer font names (e.g. VGA8x16, SUN22x18). | |
344 | * This is only available if the fonts have been statically compiled | |
345 | * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options. | |
346 | * - sti_font=<number> | |
347 | * most STI ROMs have built-in HP specific fonts, which can be selected | |
348 | * by giving the desired number to the sticon driver. | |
349 | * NOTE: This number is machine and STI ROM dependend. | |
350 | * - sti_font=<height>x<width> (e.g. sti_font=16x8) | |
351 | * <height> and <width> gives hints to the height and width of the | |
352 | * font which the user wants. The sticon driver will try to use | |
353 | * a font with this height and width, but if no suitable font is | |
354 | * found, sticon will use the default 8x8 font. | |
355 | */ | |
356 | __setup("sti_font=", sti_font_setup); | |
357 | #endif | |
358 | ||
359 | ||
360 | ||
361 | static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, | |
362 | unsigned int sti_mem_request) | |
363 | { | |
364 | struct sti_glob_cfg_ext *cfg; | |
365 | ||
366 | DPRINTK((KERN_INFO | |
367 | "%d text planes\n" | |
368 | "%4d x %4d screen resolution\n" | |
369 | "%4d x %4d offscreen\n" | |
370 | "%4d x %4d layout\n" | |
371 | "regions at %08x %08x %08x %08x\n" | |
372 | "regions at %08x %08x %08x %08x\n" | |
373 | "reent_lvl %d\n" | |
374 | "save_addr %08x\n", | |
375 | glob_cfg->text_planes, | |
376 | glob_cfg->onscreen_x, glob_cfg->onscreen_y, | |
377 | glob_cfg->offscreen_x, glob_cfg->offscreen_y, | |
378 | glob_cfg->total_x, glob_cfg->total_y, | |
379 | glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1], | |
380 | glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3], | |
381 | glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5], | |
382 | glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7], | |
383 | glob_cfg->reent_lvl, | |
384 | glob_cfg->save_addr)); | |
385 | ||
386 | /* dump extended cfg */ | |
387 | cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr); | |
388 | DPRINTK(( KERN_INFO | |
389 | "monitor %d\n" | |
390 | "in friendly mode: %d\n" | |
391 | "power consumption %d watts\n" | |
392 | "freq ref %d\n" | |
393 | "sti_mem_addr %08x (size=%d bytes)\n", | |
394 | cfg->curr_mon, | |
395 | cfg->friendly_boot, | |
396 | cfg->power, | |
397 | cfg->freq_ref, | |
398 | cfg->sti_mem_addr, sti_mem_request)); | |
399 | } | |
400 | ||
401 | static void sti_dump_outptr(struct sti_struct *sti) | |
402 | { | |
403 | DPRINTK((KERN_INFO | |
404 | "%d bits per pixel\n" | |
405 | "%d used bits\n" | |
406 | "%d planes\n" | |
407 | "attributes %08x\n", | |
408 | sti->sti_data->inq_outptr.bits_per_pixel, | |
409 | sti->sti_data->inq_outptr.bits_used, | |
410 | sti->sti_data->inq_outptr.planes, | |
411 | sti->sti_data->inq_outptr.attributes)); | |
412 | } | |
413 | ||
414 | static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address, | |
415 | unsigned long hpa) | |
416 | { | |
417 | struct sti_glob_cfg *glob_cfg; | |
418 | struct sti_glob_cfg_ext *glob_cfg_ext; | |
419 | void *save_addr; | |
420 | void *sti_mem_addr; | |
421 | int i, size; | |
422 | ||
423 | if (sti->sti_mem_request < 256) | |
424 | sti->sti_mem_request = 256; /* STI default */ | |
425 | ||
426 | size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256; | |
427 | ||
428 | sti->sti_data = kzalloc(size, STI_LOWMEM); | |
429 | if (!sti->sti_data) | |
430 | return -ENOMEM; | |
431 | ||
432 | glob_cfg = &sti->sti_data->glob_cfg; | |
433 | glob_cfg_ext = &sti->sti_data->glob_cfg_ext; | |
434 | save_addr = &sti->sti_data->save_addr; | |
435 | sti_mem_addr = &sti->sti_data->sti_mem_addr; | |
436 | ||
437 | glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext); | |
438 | glob_cfg->save_addr = STI_PTR(save_addr); | |
439 | for (i=0; i<8; i++) { | |
440 | unsigned long newhpa, len; | |
441 | ||
442 | if (sti->pd) { | |
443 | unsigned char offs = sti->rm_entry[i]; | |
444 | ||
445 | if (offs == 0) | |
446 | continue; | |
447 | if (offs != PCI_ROM_ADDRESS && | |
448 | (offs < PCI_BASE_ADDRESS_0 || | |
449 | offs > PCI_BASE_ADDRESS_5)) { | |
450 | printk (KERN_WARNING | |
451 | "STI pci region mapping for region %d (%02x) can't be mapped\n", | |
452 | i,sti->rm_entry[i]); | |
453 | continue; | |
454 | } | |
455 | newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4); | |
456 | } else | |
457 | newhpa = (i == 0) ? rom_address : hpa; | |
458 | ||
459 | sti->regions_phys[i] = | |
460 | REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa); | |
461 | ||
462 | len = sti->regions[i].region_desc.length * 4096; | |
463 | if (len) | |
464 | glob_cfg->region_ptrs[i] = sti->regions_phys[i]; | |
465 | ||
466 | DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, " | |
467 | "btlb=%d, sysonly=%d, cache=%d, last=%d\n", | |
468 | i, sti->regions_phys[i], glob_cfg->region_ptrs[i], | |
469 | len/1024, | |
470 | sti->regions[i].region_desc.btlb, | |
471 | sti->regions[i].region_desc.sys_only, | |
472 | sti->regions[i].region_desc.cache, | |
473 | sti->regions[i].region_desc.last)); | |
474 | ||
475 | /* last entry reached ? */ | |
476 | if (sti->regions[i].region_desc.last) | |
477 | break; | |
478 | } | |
479 | ||
480 | if (++i<8 && sti->regions[i].region) | |
481 | printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n", | |
482 | __FILE__, sti->regions[i].region); | |
483 | ||
484 | glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr); | |
485 | ||
486 | sti->glob_cfg = glob_cfg; | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | #ifdef CONFIG_FONT_SUPPORT | |
492 | static struct sti_cooked_font * | |
493 | sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) | |
494 | { | |
495 | const struct font_desc *fbfont = NULL; | |
496 | unsigned int size, bpc; | |
497 | void *dest; | |
498 | struct sti_rom_font *nf; | |
499 | struct sti_cooked_font *cooked_font; | |
500 | ||
501 | if (fbfont_name && strlen(fbfont_name)) | |
502 | fbfont = find_font(fbfont_name); | |
503 | if (!fbfont) | |
504 | fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0); | |
505 | if (!fbfont) | |
506 | return NULL; | |
507 | ||
508 | pr_info("STI selected %dx%d framebuffer font %s for sticon\n", | |
509 | fbfont->width, fbfont->height, fbfont->name); | |
510 | ||
511 | bpc = ((fbfont->width+7)/8) * fbfont->height; | |
512 | size = bpc * 256; | |
513 | size += sizeof(struct sti_rom_font); | |
514 | ||
515 | nf = kzalloc(size, STI_LOWMEM); | |
516 | if (!nf) | |
517 | return NULL; | |
518 | ||
519 | nf->first_char = 0; | |
520 | nf->last_char = 255; | |
521 | nf->width = fbfont->width; | |
522 | nf->height = fbfont->height; | |
523 | nf->font_type = STI_FONT_HPROMAN8; | |
524 | nf->bytes_per_char = bpc; | |
525 | nf->next_font = 0; | |
526 | nf->underline_height = 1; | |
527 | nf->underline_pos = fbfont->height - nf->underline_height; | |
528 | ||
529 | dest = nf; | |
530 | dest += sizeof(struct sti_rom_font); | |
531 | memcpy(dest, fbfont->data, bpc*256); | |
532 | ||
533 | cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); | |
534 | if (!cooked_font) { | |
535 | kfree(nf); | |
536 | return NULL; | |
537 | } | |
538 | ||
539 | cooked_font->raw = nf; | |
540 | cooked_font->next_font = NULL; | |
541 | ||
542 | cooked_rom->font_start = cooked_font; | |
543 | ||
544 | return cooked_font; | |
545 | } | |
546 | #else | |
547 | static struct sti_cooked_font * | |
548 | sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) | |
549 | { | |
550 | return NULL; | |
551 | } | |
552 | #endif | |
553 | ||
554 | static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom, | |
555 | int (*search_font_fnc)(struct sti_cooked_rom *, int, int)) | |
556 | { | |
557 | struct sti_cooked_font *font; | |
558 | int i; | |
559 | int index = num_sti_roms; | |
560 | ||
561 | /* check for framebuffer-font first */ | |
562 | if ((font = sti_select_fbfont(rom, font_name[index]))) | |
563 | return font; | |
564 | ||
565 | if (font_width[index] && font_height[index]) | |
566 | font_index[index] = search_font_fnc(rom, | |
567 | font_height[index], font_width[index]); | |
568 | ||
569 | for (font = rom->font_start, i = font_index[index]; | |
570 | font && (i > 0); | |
571 | font = font->next_font, i--); | |
572 | ||
573 | if (font) | |
574 | return font; | |
575 | else | |
576 | return rom->font_start; | |
577 | } | |
578 | ||
579 | ||
580 | static void sti_dump_rom(struct sti_rom *rom) | |
581 | { | |
582 | printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n", | |
583 | rom->graphics_id[0], | |
584 | rom->graphics_id[1], | |
585 | rom->revno[0] >> 4, | |
586 | rom->revno[0] & 0x0f); | |
587 | DPRINTK((" supports %d monitors\n", rom->num_mons)); | |
588 | DPRINTK((" font start %08x\n", rom->font_start)); | |
589 | DPRINTK((" region list %08x\n", rom->region_list)); | |
590 | DPRINTK((" init_graph %08x\n", rom->init_graph)); | |
591 | DPRINTK((" bus support %02x\n", rom->bus_support)); | |
592 | DPRINTK((" ext bus support %02x\n", rom->ext_bus_support)); | |
593 | DPRINTK((" alternate code type %d\n", rom->alt_code_type)); | |
594 | } | |
595 | ||
596 | ||
597 | static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom, | |
598 | struct sti_rom *raw_rom) | |
599 | { | |
600 | struct sti_rom_font *raw_font, *font_start; | |
601 | struct sti_cooked_font *cooked_font; | |
602 | ||
603 | cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); | |
604 | if (!cooked_font) | |
605 | return 0; | |
606 | ||
607 | cooked_rom->font_start = cooked_font; | |
608 | ||
609 | raw_font = ((void *)raw_rom) + (raw_rom->font_start); | |
610 | ||
611 | font_start = raw_font; | |
612 | cooked_font->raw = raw_font; | |
613 | ||
614 | while (raw_font->next_font) { | |
615 | raw_font = ((void *)font_start) + (raw_font->next_font); | |
616 | ||
617 | cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); | |
618 | if (!cooked_font->next_font) | |
619 | return 1; | |
620 | ||
621 | cooked_font = cooked_font->next_font; | |
622 | ||
623 | cooked_font->raw = raw_font; | |
624 | } | |
625 | ||
626 | cooked_font->next_font = NULL; | |
627 | return 1; | |
628 | } | |
629 | ||
630 | ||
631 | static int sti_search_font(struct sti_cooked_rom *rom, int height, int width) | |
632 | { | |
633 | struct sti_cooked_font *font; | |
634 | int i = 0; | |
635 | ||
636 | for (font = rom->font_start; font; font = font->next_font, i++) { | |
637 | if ((font->raw->width == width) && | |
638 | (font->raw->height == height)) | |
639 | return i; | |
640 | } | |
641 | return 0; | |
642 | } | |
643 | ||
644 | #define BMODE_RELOCATE(offset) offset = (offset) / 4; | |
645 | #define BMODE_LAST_ADDR_OFFS 0x50 | |
646 | ||
647 | static void *sti_bmode_font_raw(struct sti_cooked_font *f) | |
648 | { | |
649 | unsigned char *n, *p, *q; | |
650 | int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font); | |
651 | ||
652 | n = kzalloc(4*size, STI_LOWMEM); | |
653 | if (!n) | |
654 | return NULL; | |
655 | p = n + 3; | |
656 | q = (unsigned char *)f->raw; | |
657 | while (size--) { | |
658 | *p = *q++; | |
659 | p+=4; | |
660 | } | |
661 | return n + 3; | |
662 | } | |
663 | ||
664 | static void sti_bmode_rom_copy(unsigned long base, unsigned long count, | |
665 | void *dest) | |
666 | { | |
667 | unsigned long dest_start = (unsigned long) dest; | |
668 | ||
669 | while (count) { | |
670 | count--; | |
671 | *(u8 *)dest = gsc_readl(base); | |
672 | base += 4; | |
673 | dest++; | |
674 | } | |
675 | ||
676 | sti_flush(dest_start, (unsigned long)dest); | |
677 | } | |
678 | ||
679 | static struct sti_rom *sti_get_bmode_rom (unsigned long address) | |
680 | { | |
681 | struct sti_rom *raw; | |
682 | u32 size; | |
683 | struct sti_rom_font *raw_font, *font_start; | |
684 | ||
685 | sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size); | |
686 | ||
687 | size = (size+3) / 4; | |
688 | raw = kmalloc(size, STI_LOWMEM); | |
689 | if (raw) { | |
690 | sti_bmode_rom_copy(address, size, raw); | |
691 | memmove (&raw->res004, &raw->type[0], 0x3c); | |
692 | raw->type[3] = raw->res004; | |
693 | ||
694 | BMODE_RELOCATE (raw->region_list); | |
695 | BMODE_RELOCATE (raw->font_start); | |
696 | ||
697 | BMODE_RELOCATE (raw->init_graph); | |
698 | BMODE_RELOCATE (raw->state_mgmt); | |
699 | BMODE_RELOCATE (raw->font_unpmv); | |
700 | BMODE_RELOCATE (raw->block_move); | |
701 | BMODE_RELOCATE (raw->inq_conf); | |
702 | ||
703 | raw_font = ((void *)raw) + raw->font_start; | |
704 | font_start = raw_font; | |
705 | ||
706 | while (raw_font->next_font) { | |
707 | BMODE_RELOCATE (raw_font->next_font); | |
708 | raw_font = ((void *)font_start) + raw_font->next_font; | |
709 | } | |
710 | } | |
711 | return raw; | |
712 | } | |
713 | ||
714 | static struct sti_rom *sti_get_wmode_rom(unsigned long address) | |
715 | { | |
716 | struct sti_rom *raw; | |
717 | unsigned long size; | |
718 | ||
719 | /* read the ROM size directly from the struct in ROM */ | |
720 | size = gsc_readl(address + offsetof(struct sti_rom,last_addr)); | |
721 | ||
722 | raw = kmalloc(size, STI_LOWMEM); | |
723 | if (raw) | |
724 | sti_rom_copy(address, size, raw); | |
725 | ||
726 | return raw; | |
727 | } | |
728 | ||
729 | static int sti_read_rom(int wordmode, struct sti_struct *sti, | |
730 | unsigned long address) | |
731 | { | |
732 | struct sti_cooked_rom *cooked; | |
733 | struct sti_rom *raw = NULL; | |
734 | unsigned long revno; | |
735 | ||
736 | cooked = kmalloc(sizeof *cooked, GFP_KERNEL); | |
737 | if (!cooked) | |
738 | goto out_err; | |
739 | ||
740 | if (wordmode) | |
741 | raw = sti_get_wmode_rom (address); | |
742 | else | |
743 | raw = sti_get_bmode_rom (address); | |
744 | ||
745 | if (!raw) | |
746 | goto out_err; | |
747 | ||
748 | if (!sti_cook_fonts(cooked, raw)) { | |
749 | printk(KERN_ERR "No font found for STI at %08lx\n", address); | |
750 | goto out_err; | |
751 | } | |
752 | ||
753 | if (raw->region_list) | |
754 | memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions)); | |
755 | ||
756 | address = (unsigned long) STI_PTR(raw); | |
757 | ||
758 | pr_info("STI ROM supports 32 %sbit firmware functions.\n", | |
759 | raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64 | |
760 | ? "and 64 " : ""); | |
761 | ||
762 | sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff); | |
763 | sti->block_move = address + (raw->block_move & 0x03ffffff); | |
764 | sti->init_graph = address + (raw->init_graph & 0x03ffffff); | |
765 | sti->inq_conf = address + (raw->inq_conf & 0x03ffffff); | |
766 | ||
767 | sti->rom = cooked; | |
768 | sti->rom->raw = raw; | |
769 | ||
770 | sti->font = sti_select_font(sti->rom, sti_search_font); | |
771 | sti->font_width = sti->font->raw->width; | |
772 | sti->font_height = sti->font->raw->height; | |
773 | if (!wordmode) | |
774 | sti->font->raw = sti_bmode_font_raw(sti->font); | |
775 | ||
776 | sti->sti_mem_request = raw->sti_mem_req; | |
777 | sti->graphics_id[0] = raw->graphics_id[0]; | |
778 | sti->graphics_id[1] = raw->graphics_id[1]; | |
779 | ||
780 | sti_dump_rom(raw); | |
781 | ||
782 | /* check if the ROM routines in this card are compatible */ | |
783 | if (wordmode || sti->graphics_id[1] != 0x09A02587) | |
784 | goto ok; | |
785 | ||
786 | revno = (raw->revno[0] << 8) | raw->revno[1]; | |
787 | ||
788 | switch (sti->graphics_id[0]) { | |
789 | case S9000_ID_HCRX: | |
790 | /* HyperA or HyperB ? */ | |
791 | if (revno == 0x8408 || revno == 0x840b) | |
792 | goto msg_not_supported; | |
793 | break; | |
794 | case CRT_ID_THUNDER: | |
795 | if (revno == 0x8509) | |
796 | goto msg_not_supported; | |
797 | break; | |
798 | case CRT_ID_THUNDER2: | |
799 | if (revno == 0x850c) | |
800 | goto msg_not_supported; | |
801 | } | |
802 | ok: | |
803 | return 1; | |
804 | ||
805 | msg_not_supported: | |
806 | printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n"); | |
807 | printk(KERN_ERR "Please see http://parisc-linux.org/faq/" | |
808 | "graphics-howto.html for more info.\n"); | |
809 | /* fall through */ | |
810 | out_err: | |
811 | kfree(raw); | |
812 | kfree(cooked); | |
813 | return 0; | |
814 | } | |
815 | ||
816 | static struct sti_struct *sti_try_rom_generic(unsigned long address, | |
817 | unsigned long hpa, | |
818 | struct pci_dev *pd) | |
819 | { | |
820 | struct sti_struct *sti; | |
821 | int ok; | |
822 | u32 sig; | |
823 | ||
824 | if (num_sti_roms >= MAX_STI_ROMS) { | |
825 | printk(KERN_WARNING "maximum number of STI ROMS reached !\n"); | |
826 | return NULL; | |
827 | } | |
828 | ||
829 | sti = kzalloc(sizeof(*sti), GFP_KERNEL); | |
830 | if (!sti) { | |
831 | printk(KERN_ERR "Not enough memory !\n"); | |
832 | return NULL; | |
833 | } | |
834 | ||
835 | spin_lock_init(&sti->lock); | |
836 | ||
837 | test_rom: | |
838 | /* if we can't read the ROM, bail out early. Not being able | |
839 | * to read the hpa is okay, for romless sti */ | |
840 | if (pdc_add_valid(address)) | |
841 | goto out_err; | |
842 | ||
843 | sig = gsc_readl(address); | |
844 | ||
845 | /* check for a PCI ROM structure */ | |
846 | if ((le32_to_cpu(sig)==0xaa55)) { | |
847 | unsigned int i, rm_offset; | |
848 | u32 *rm; | |
849 | i = gsc_readl(address+0x04); | |
850 | if (i != 1) { | |
851 | /* The ROM could have multiple architecture | |
852 | * dependent images (e.g. i386, parisc,...) */ | |
853 | printk(KERN_WARNING | |
854 | "PCI ROM is not a STI ROM type image (0x%8x)\n", i); | |
855 | goto out_err; | |
856 | } | |
857 | ||
858 | sti->pd = pd; | |
859 | ||
860 | i = gsc_readl(address+0x0c); | |
861 | DPRINTK(("PCI ROM size (from header) = %d kB\n", | |
862 | le16_to_cpu(i>>16)*512/1024)); | |
863 | rm_offset = le16_to_cpu(i & 0xffff); | |
864 | if (rm_offset) { | |
865 | /* read 16 bytes from the pci region mapper array */ | |
866 | rm = (u32*) &sti->rm_entry; | |
867 | *rm++ = gsc_readl(address+rm_offset+0x00); | |
868 | *rm++ = gsc_readl(address+rm_offset+0x04); | |
869 | *rm++ = gsc_readl(address+rm_offset+0x08); | |
870 | *rm++ = gsc_readl(address+rm_offset+0x0c); | |
871 | DPRINTK(("PCI region Mapper offset = %08x: ", | |
872 | rm_offset)); | |
873 | for (i=0; i<16; i++) | |
874 | DPRINTK(("%02x ", sti->rm_entry[i])); | |
875 | DPRINTK(("\n")); | |
876 | } | |
877 | ||
878 | address += le32_to_cpu(gsc_readl(address+8)); | |
879 | DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address)); | |
880 | goto test_rom; | |
881 | } | |
882 | ||
883 | ok = 0; | |
884 | ||
885 | if ((sig & 0xff) == 0x01) { | |
886 | DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n", | |
887 | address, hpa)); | |
888 | ok = sti_read_rom(0, sti, address); | |
889 | } | |
890 | ||
891 | if ((sig & 0xffff) == 0x0303) { | |
892 | DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n", | |
893 | address, hpa)); | |
894 | ok = sti_read_rom(1, sti, address); | |
895 | } | |
896 | ||
897 | if (!ok) | |
898 | goto out_err; | |
899 | ||
900 | if (sti_init_glob_cfg(sti, address, hpa)) | |
901 | goto out_err; /* not enough memory */ | |
902 | ||
903 | /* disable STI PCI ROM. ROM and card RAM overlap and | |
904 | * leaving it enabled would force HPMCs | |
905 | */ | |
906 | if (sti->pd) { | |
907 | unsigned long rom_base; | |
908 | rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE); | |
909 | pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE); | |
910 | DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n")); | |
911 | } | |
912 | ||
913 | if (sti_init_graph(sti)) | |
914 | goto out_err; | |
915 | ||
916 | sti_inq_conf(sti); | |
917 | sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request); | |
918 | sti_dump_outptr(sti); | |
919 | ||
920 | pr_info(" graphics card name: %s\n", | |
921 | sti->sti_data->inq_outptr.dev_name); | |
922 | ||
923 | sti_roms[num_sti_roms] = sti; | |
924 | num_sti_roms++; | |
925 | ||
926 | return sti; | |
927 | ||
928 | out_err: | |
929 | kfree(sti); | |
930 | return NULL; | |
931 | } | |
932 | ||
933 | static void sticore_check_for_default_sti(struct sti_struct *sti, char *path) | |
934 | { | |
935 | if (strcmp (path, default_sti_path) == 0) | |
936 | default_sti = sti; | |
937 | } | |
938 | ||
939 | /* | |
940 | * on newer systems PDC gives the address of the ROM | |
941 | * in the additional address field addr[1] while on | |
942 | * older Systems the PDC stores it in page0->proc_sti | |
943 | */ | |
944 | static int sticore_pa_init(struct parisc_device *dev) | |
945 | { | |
946 | char pa_path[21]; | |
947 | struct sti_struct *sti = NULL; | |
948 | int hpa = dev->hpa.start; | |
949 | ||
950 | if (dev->num_addrs && dev->addr[0]) | |
951 | sti = sti_try_rom_generic(dev->addr[0], hpa, NULL); | |
952 | if (!sti) | |
953 | sti = sti_try_rom_generic(hpa, hpa, NULL); | |
954 | if (!sti) | |
955 | sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL); | |
956 | if (!sti) | |
957 | return 1; | |
958 | ||
959 | print_pa_hwpath(dev, pa_path); | |
960 | sticore_check_for_default_sti(sti, pa_path); | |
961 | return 0; | |
962 | } | |
963 | ||
964 | ||
965 | static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent) | |
966 | { | |
967 | #ifdef CONFIG_PCI | |
968 | unsigned long fb_base, rom_base; | |
969 | unsigned int fb_len, rom_len; | |
970 | int err; | |
971 | struct sti_struct *sti; | |
972 | ||
973 | err = pci_enable_device(pd); | |
974 | if (err < 0) { | |
975 | dev_err(&pd->dev, "Cannot enable PCI device\n"); | |
976 | return err; | |
977 | } | |
978 | ||
979 | fb_base = pci_resource_start(pd, 0); | |
980 | fb_len = pci_resource_len(pd, 0); | |
981 | rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE); | |
982 | rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE); | |
983 | if (rom_base) { | |
984 | pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE); | |
985 | DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base)); | |
986 | } | |
987 | ||
988 | printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n", | |
989 | rom_base, rom_len/1024, fb_base, fb_len/1024/1024); | |
990 | ||
991 | DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n", | |
992 | rom_base, fb_base)); | |
993 | ||
994 | sti = sti_try_rom_generic(rom_base, fb_base, pd); | |
995 | if (sti) { | |
996 | char pa_path[30]; | |
997 | print_pci_hwpath(pd, pa_path); | |
998 | sticore_check_for_default_sti(sti, pa_path); | |
999 | } | |
1000 | ||
1001 | if (!sti) { | |
1002 | printk(KERN_WARNING "Unable to handle STI device '%s'\n", | |
1003 | pci_name(pd)); | |
1004 | return -ENODEV; | |
1005 | } | |
1006 | #endif /* CONFIG_PCI */ | |
1007 | ||
1008 | return 0; | |
1009 | } | |
1010 | ||
1011 | ||
1012 | static void sticore_pci_remove(struct pci_dev *pd) | |
1013 | { | |
1014 | BUG(); | |
1015 | } | |
1016 | ||
1017 | ||
1018 | static struct pci_device_id sti_pci_tbl[] = { | |
1019 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) }, | |
1020 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) }, | |
1021 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) }, | |
1022 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) }, | |
1023 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) }, | |
1024 | { 0, } /* terminate list */ | |
1025 | }; | |
1026 | MODULE_DEVICE_TABLE(pci, sti_pci_tbl); | |
1027 | ||
1028 | static struct pci_driver pci_sti_driver = { | |
1029 | .name = "sti", | |
1030 | .id_table = sti_pci_tbl, | |
1031 | .probe = sticore_pci_init, | |
1032 | .remove = sticore_pci_remove, | |
1033 | }; | |
1034 | ||
1035 | static struct parisc_device_id sti_pa_tbl[] = { | |
1036 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 }, | |
1037 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 }, | |
1038 | { 0, } | |
1039 | }; | |
1040 | ||
1041 | static struct parisc_driver pa_sti_driver = { | |
1042 | .name = "sti", | |
1043 | .id_table = sti_pa_tbl, | |
1044 | .probe = sticore_pa_init, | |
1045 | }; | |
1046 | ||
1047 | ||
1048 | /* | |
1049 | * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[] | |
1050 | */ | |
1051 | ||
1052 | static int sticore_initialized __read_mostly; | |
1053 | ||
1054 | static void sti_init_roms(void) | |
1055 | { | |
1056 | if (sticore_initialized) | |
1057 | return; | |
1058 | ||
1059 | sticore_initialized = 1; | |
1060 | ||
1061 | printk(KERN_INFO "STI GSC/PCI core graphics driver " | |
1062 | STI_DRIVERVERSION "\n"); | |
1063 | ||
1064 | /* Register drivers for native & PCI cards */ | |
1065 | register_parisc_driver(&pa_sti_driver); | |
1066 | WARN_ON(pci_register_driver(&pci_sti_driver)); | |
1067 | ||
1068 | /* if we didn't find the given default sti, take the first one */ | |
1069 | if (!default_sti) | |
1070 | default_sti = sti_roms[0]; | |
1071 | ||
1072 | } | |
1073 | ||
1074 | /* | |
1075 | * index = 0 gives default sti | |
1076 | * index > 0 gives other stis in detection order | |
1077 | */ | |
1078 | struct sti_struct * sti_get_rom(unsigned int index) | |
1079 | { | |
1080 | if (!sticore_initialized) | |
1081 | sti_init_roms(); | |
1082 | ||
1083 | if (index == 0) | |
1084 | return default_sti; | |
1085 | ||
1086 | if (index > num_sti_roms) | |
1087 | return NULL; | |
1088 | ||
1089 | return sti_roms[index-1]; | |
1090 | } | |
1091 | EXPORT_SYMBOL(sti_get_rom); | |
1092 | ||
1093 | ||
1094 | int sti_call(const struct sti_struct *sti, unsigned long func, | |
1095 | const void *flags, void *inptr, void *outptr, | |
1096 | struct sti_glob_cfg *glob_cfg) | |
1097 | { | |
1098 | unsigned long _flags = STI_PTR(flags); | |
1099 | unsigned long _inptr = STI_PTR(inptr); | |
1100 | unsigned long _outptr = STI_PTR(outptr); | |
1101 | unsigned long _glob_cfg = STI_PTR(glob_cfg); | |
1102 | int ret; | |
1103 | ||
1104 | #ifdef CONFIG_64BIT | |
1105 | /* Check for overflow when using 32bit STI on 64bit kernel. */ | |
1106 | if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32, | |
1107 | "Out of 32bit-range pointers!")) | |
1108 | return -1; | |
1109 | #endif | |
1110 | ||
1111 | ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg); | |
1112 | ||
1113 | return ret; | |
1114 | } | |
1115 | ||
1116 | MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer"); | |
1117 | MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines"); | |
1118 | MODULE_LICENSE("GPL v2"); | |
1119 |