Commit | Line | Data |
---|---|---|
1da177e4 LT |
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) 2001-2003 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 | ||
1da177e4 LT |
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> | |
4a8a0788 | 25 | #include <asm/page.h> |
1da177e4 | 26 | #include <asm/parisc-device.h> |
4a8a0788 | 27 | #include <asm/pdc.h> |
1da177e4 | 28 | #include <asm/cacheflush.h> |
fdac4e69 | 29 | #include <asm/grfioctl.h> |
1da177e4 LT |
30 | |
31 | #include "../sticore.h" | |
32 | ||
33 | #define STI_DRIVERVERSION "Version 0.9a" | |
34 | ||
3d1e412a | 35 | static struct sti_struct *default_sti __read_mostly; |
1da177e4 | 36 | |
cb6fc18e HD |
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; | |
1da177e4 LT |
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 | ||
3d1e412a | 74 | static int sti_init_graph(struct sti_struct *sti) |
1da177e4 LT |
75 | { |
76 | struct sti_init_inptr_ext inptr_ext = { 0, }; | |
77 | struct sti_init_inptr inptr = { | |
78 | .text_planes = 3, /* # of text planes (max 3 for STI) */ | |
79 | .ext_ptr = STI_PTR(&inptr_ext) | |
80 | }; | |
81 | struct sti_init_outptr outptr = { 0, }; | |
82 | unsigned long flags; | |
83 | int ret; | |
84 | ||
85 | spin_lock_irqsave(&sti->lock, flags); | |
86 | ||
87 | ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr, | |
88 | &outptr, sti->glob_cfg); | |
89 | ||
90 | spin_unlock_irqrestore(&sti->lock, flags); | |
91 | ||
92 | if (ret < 0) { | |
93 | printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n",ret,outptr.errno); | |
94 | return -1; | |
95 | } | |
96 | ||
97 | sti->text_planes = outptr.text_planes; | |
98 | return 0; | |
99 | } | |
100 | ||
101 | static const struct sti_conf_flags default_conf_flags = { | |
102 | .wait = STI_WAIT, | |
103 | }; | |
104 | ||
3d1e412a | 105 | static void sti_inq_conf(struct sti_struct *sti) |
1da177e4 LT |
106 | { |
107 | struct sti_conf_inptr inptr = { 0, }; | |
108 | unsigned long flags; | |
109 | s32 ret; | |
110 | ||
111 | sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext); | |
112 | ||
113 | do { | |
114 | spin_lock_irqsave(&sti->lock, flags); | |
115 | ret = STI_CALL(sti->inq_conf, &default_conf_flags, | |
116 | &inptr, &sti->outptr, sti->glob_cfg); | |
117 | spin_unlock_irqrestore(&sti->lock, flags); | |
118 | } while (ret == 1); | |
119 | } | |
120 | ||
121 | static const struct sti_font_flags default_font_flags = { | |
122 | .wait = STI_WAIT, | |
123 | .non_text = 0, | |
124 | }; | |
125 | ||
126 | void | |
127 | sti_putc(struct sti_struct *sti, int c, int y, int x) | |
128 | { | |
129 | struct sti_font_inptr inptr = { | |
130 | .font_start_addr= STI_PTR(sti->font->raw), | |
131 | .index = c_index(sti, c), | |
132 | .fg_color = c_fg(sti, c), | |
133 | .bg_color = c_bg(sti, c), | |
134 | .dest_x = x * sti->font_width, | |
135 | .dest_y = y * sti->font_height, | |
136 | }; | |
137 | struct sti_font_outptr outptr = { 0, }; | |
138 | s32 ret; | |
139 | unsigned long flags; | |
140 | ||
141 | do { | |
142 | spin_lock_irqsave(&sti->lock, flags); | |
143 | ret = STI_CALL(sti->font_unpmv, &default_font_flags, | |
144 | &inptr, &outptr, sti->glob_cfg); | |
145 | spin_unlock_irqrestore(&sti->lock, flags); | |
146 | } while (ret == 1); | |
147 | } | |
148 | ||
149 | static const struct sti_blkmv_flags clear_blkmv_flags = { | |
150 | .wait = STI_WAIT, | |
151 | .color = 1, | |
152 | .clear = 1, | |
153 | }; | |
154 | ||
155 | void | |
156 | sti_set(struct sti_struct *sti, int src_y, int src_x, | |
157 | int height, int width, u8 color) | |
158 | { | |
159 | struct sti_blkmv_inptr inptr = { | |
160 | .fg_color = color, | |
161 | .bg_color = color, | |
162 | .src_x = src_x, | |
163 | .src_y = src_y, | |
164 | .dest_x = src_x, | |
165 | .dest_y = src_y, | |
166 | .width = width, | |
167 | .height = height, | |
168 | }; | |
169 | struct sti_blkmv_outptr outptr = { 0, }; | |
170 | s32 ret; | |
171 | unsigned long flags; | |
172 | ||
173 | do { | |
174 | spin_lock_irqsave(&sti->lock, flags); | |
175 | ret = STI_CALL(sti->block_move, &clear_blkmv_flags, | |
176 | &inptr, &outptr, sti->glob_cfg); | |
177 | spin_unlock_irqrestore(&sti->lock, flags); | |
178 | } while (ret == 1); | |
179 | } | |
180 | ||
181 | void | |
182 | sti_clear(struct sti_struct *sti, int src_y, int src_x, | |
183 | int height, int width, int c) | |
184 | { | |
185 | struct sti_blkmv_inptr inptr = { | |
186 | .fg_color = c_fg(sti, c), | |
187 | .bg_color = c_bg(sti, c), | |
188 | .src_x = src_x * sti->font_width, | |
189 | .src_y = src_y * sti->font_height, | |
190 | .dest_x = src_x * sti->font_width, | |
191 | .dest_y = src_y * sti->font_height, | |
192 | .width = width * sti->font_width, | |
193 | .height = height* sti->font_height, | |
194 | }; | |
195 | struct sti_blkmv_outptr outptr = { 0, }; | |
196 | s32 ret; | |
197 | unsigned long flags; | |
198 | ||
199 | do { | |
200 | spin_lock_irqsave(&sti->lock, flags); | |
201 | ret = STI_CALL(sti->block_move, &clear_blkmv_flags, | |
202 | &inptr, &outptr, sti->glob_cfg); | |
203 | spin_unlock_irqrestore(&sti->lock, flags); | |
204 | } while (ret == 1); | |
205 | } | |
206 | ||
207 | static const struct sti_blkmv_flags default_blkmv_flags = { | |
208 | .wait = STI_WAIT, | |
209 | }; | |
210 | ||
211 | void | |
212 | sti_bmove(struct sti_struct *sti, int src_y, int src_x, | |
213 | int dst_y, int dst_x, int height, int width) | |
214 | { | |
215 | struct sti_blkmv_inptr inptr = { | |
216 | .src_x = src_x * sti->font_width, | |
217 | .src_y = src_y * sti->font_height, | |
218 | .dest_x = dst_x * sti->font_width, | |
219 | .dest_y = dst_y * sti->font_height, | |
220 | .width = width * sti->font_width, | |
221 | .height = height* sti->font_height, | |
222 | }; | |
223 | struct sti_blkmv_outptr outptr = { 0, }; | |
224 | s32 ret; | |
225 | unsigned long flags; | |
226 | ||
227 | do { | |
228 | spin_lock_irqsave(&sti->lock, flags); | |
229 | ret = STI_CALL(sti->block_move, &default_blkmv_flags, | |
230 | &inptr, &outptr, sti->glob_cfg); | |
231 | spin_unlock_irqrestore(&sti->lock, flags); | |
232 | } while (ret == 1); | |
233 | } | |
234 | ||
235 | ||
03b18f1b | 236 | static void sti_flush(unsigned long start, unsigned long end) |
1da177e4 | 237 | { |
03b18f1b | 238 | flush_icache_range(start, end); |
1da177e4 LT |
239 | } |
240 | ||
48c68c4f | 241 | static void sti_rom_copy(unsigned long base, unsigned long count, void *dest) |
1da177e4 | 242 | { |
1da177e4 LT |
243 | unsigned long dest_start = (unsigned long) dest; |
244 | ||
245 | /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */ | |
246 | while (count >= 4) { | |
247 | count -= 4; | |
248 | *(u32 *)dest = gsc_readl(base); | |
249 | base += 4; | |
250 | dest += 4; | |
251 | } | |
252 | while (count) { | |
253 | count--; | |
254 | *(u8 *)dest = gsc_readb(base); | |
255 | base++; | |
256 | dest++; | |
257 | } | |
258 | ||
03b18f1b | 259 | sti_flush(dest_start, (unsigned long)dest); |
1da177e4 LT |
260 | } |
261 | ||
262 | ||
263 | ||
264 | ||
cb6fc18e | 265 | static char default_sti_path[21] __read_mostly; |
1da177e4 LT |
266 | |
267 | #ifndef MODULE | |
48c68c4f | 268 | static int sti_setup(char *str) |
1da177e4 LT |
269 | { |
270 | if (str) | |
271 | strlcpy (default_sti_path, str, sizeof (default_sti_path)); | |
272 | ||
9b41046c | 273 | return 1; |
1da177e4 LT |
274 | } |
275 | ||
276 | /* Assuming the machine has multiple STI consoles (=graphic cards) which | |
277 | * all get detected by sticon, the user may define with the linux kernel | |
278 | * parameter sti=<x> which of them will be the initial boot-console. | |
279 | * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default | |
280 | * STI screen. | |
281 | */ | |
282 | __setup("sti=", sti_setup); | |
283 | #endif | |
284 | ||
285 | ||
286 | ||
48c68c4f GKH |
287 | static char *font_name[MAX_STI_ROMS] = { "VGA8x16", }; |
288 | static int font_index[MAX_STI_ROMS], | |
289 | font_height[MAX_STI_ROMS], | |
290 | font_width[MAX_STI_ROMS]; | |
1da177e4 | 291 | #ifndef MODULE |
48c68c4f | 292 | static int sti_font_setup(char *str) |
1da177e4 LT |
293 | { |
294 | char *x; | |
295 | int i = 0; | |
296 | ||
297 | /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 | |
298 | * or sti_font=7 style command lines. */ | |
299 | ||
300 | while (i<MAX_STI_ROMS && str && *str) { | |
301 | if (*str>='0' && *str<='9') { | |
302 | if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) { | |
303 | font_height[i] = simple_strtoul(str, NULL, 0); | |
304 | font_width[i] = simple_strtoul(x+1, NULL, 0); | |
305 | } else { | |
306 | font_index[i] = simple_strtoul(str, NULL, 0); | |
307 | } | |
308 | } else { | |
309 | font_name[i] = str; /* fb font name */ | |
310 | } | |
311 | ||
312 | if ((x = strchr(str, ','))) | |
313 | *x++ = 0; | |
314 | str = x; | |
315 | ||
316 | i++; | |
317 | } | |
318 | ||
9b41046c | 319 | return 1; |
1da177e4 LT |
320 | } |
321 | ||
322 | /* The optional linux kernel parameter "sti_font" defines which font | |
323 | * should be used by the sticon driver to draw characters to the screen. | |
324 | * Possible values are: | |
325 | * - sti_font=<fb_fontname>: | |
326 | * <fb_fontname> is the name of one of the linux-kernel built-in | |
327 | * framebuffer font names (e.g. VGA8x16, SUN22x18). | |
328 | * This is only available if the fonts have been statically compiled | |
329 | * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options. | |
330 | * - sti_font=<number> | |
331 | * most STI ROMs have built-in HP specific fonts, which can be selected | |
332 | * by giving the desired number to the sticon driver. | |
333 | * NOTE: This number is machine and STI ROM dependend. | |
334 | * - sti_font=<height>x<width> (e.g. sti_font=16x8) | |
335 | * <height> and <width> gives hints to the height and width of the | |
336 | * font which the user wants. The sticon driver will try to use | |
337 | * a font with this height and width, but if no suitable font is | |
338 | * found, sticon will use the default 8x8 font. | |
339 | */ | |
340 | __setup("sti_font=", sti_font_setup); | |
341 | #endif | |
342 | ||
343 | ||
344 | ||
48c68c4f GKH |
345 | static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, |
346 | unsigned int sti_mem_request) | |
1da177e4 LT |
347 | { |
348 | struct sti_glob_cfg_ext *cfg; | |
349 | ||
350 | DPRINTK((KERN_INFO | |
351 | "%d text planes\n" | |
352 | "%4d x %4d screen resolution\n" | |
353 | "%4d x %4d offscreen\n" | |
354 | "%4d x %4d layout\n" | |
355 | "regions at %08x %08x %08x %08x\n" | |
356 | "regions at %08x %08x %08x %08x\n" | |
357 | "reent_lvl %d\n" | |
358 | "save_addr %08x\n", | |
359 | glob_cfg->text_planes, | |
360 | glob_cfg->onscreen_x, glob_cfg->onscreen_y, | |
361 | glob_cfg->offscreen_x, glob_cfg->offscreen_y, | |
362 | glob_cfg->total_x, glob_cfg->total_y, | |
363 | glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1], | |
364 | glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3], | |
365 | glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5], | |
366 | glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7], | |
367 | glob_cfg->reent_lvl, | |
368 | glob_cfg->save_addr)); | |
369 | ||
370 | /* dump extended cfg */ | |
857600c7 | 371 | cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr); |
1da177e4 LT |
372 | DPRINTK(( KERN_INFO |
373 | "monitor %d\n" | |
374 | "in friendly mode: %d\n" | |
375 | "power consumption %d watts\n" | |
376 | "freq ref %d\n" | |
377 | "sti_mem_addr %08x (size=%d bytes)\n", | |
378 | cfg->curr_mon, | |
379 | cfg->friendly_boot, | |
380 | cfg->power, | |
381 | cfg->freq_ref, | |
382 | cfg->sti_mem_addr, sti_mem_request)); | |
383 | } | |
384 | ||
48c68c4f | 385 | static void sti_dump_outptr(struct sti_struct *sti) |
1da177e4 LT |
386 | { |
387 | DPRINTK((KERN_INFO | |
388 | "%d bits per pixel\n" | |
389 | "%d used bits\n" | |
390 | "%d planes\n" | |
391 | "attributes %08x\n", | |
392 | sti->outptr.bits_per_pixel, | |
393 | sti->outptr.bits_used, | |
394 | sti->outptr.planes, | |
395 | sti->outptr.attributes)); | |
396 | } | |
397 | ||
48c68c4f GKH |
398 | static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address, |
399 | unsigned long hpa) | |
1da177e4 LT |
400 | { |
401 | struct sti_glob_cfg *glob_cfg; | |
402 | struct sti_glob_cfg_ext *glob_cfg_ext; | |
403 | void *save_addr; | |
404 | void *sti_mem_addr; | |
405 | const int save_addr_size = 1024; /* XXX */ | |
406 | int i; | |
407 | ||
408 | if (!sti->sti_mem_request) | |
409 | sti->sti_mem_request = 256; /* STI default */ | |
410 | ||
cb6fc18e HD |
411 | glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL); |
412 | glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL); | |
413 | save_addr = kzalloc(save_addr_size, GFP_KERNEL); | |
414 | sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL); | |
1da177e4 LT |
415 | |
416 | if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) { | |
417 | kfree(glob_cfg); | |
418 | kfree(glob_cfg_ext); | |
419 | kfree(save_addr); | |
420 | kfree(sti_mem_addr); | |
421 | return -ENOMEM; | |
422 | } | |
423 | ||
1da177e4 LT |
424 | glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext); |
425 | glob_cfg->save_addr = STI_PTR(save_addr); | |
426 | for (i=0; i<8; i++) { | |
427 | unsigned long newhpa, len; | |
428 | ||
429 | if (sti->pd) { | |
430 | unsigned char offs = sti->rm_entry[i]; | |
431 | ||
432 | if (offs == 0) | |
433 | continue; | |
434 | if (offs != PCI_ROM_ADDRESS && | |
435 | (offs < PCI_BASE_ADDRESS_0 || | |
436 | offs > PCI_BASE_ADDRESS_5)) { | |
437 | printk (KERN_WARNING | |
af901ca1 | 438 | "STI pci region mapping for region %d (%02x) can't be mapped\n", |
1da177e4 LT |
439 | i,sti->rm_entry[i]); |
440 | continue; | |
441 | } | |
442 | newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4); | |
443 | } else | |
444 | newhpa = (i == 0) ? rom_address : hpa; | |
445 | ||
446 | sti->regions_phys[i] = | |
447 | REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa); | |
448 | ||
1da177e4 | 449 | len = sti->regions[i].region_desc.length * 4096; |
1da177e4 LT |
450 | if (len) |
451 | glob_cfg->region_ptrs[i] = sti->regions_phys[i]; | |
1da177e4 | 452 | |
857600c7 | 453 | DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, " |
1da177e4 LT |
454 | "btlb=%d, sysonly=%d, cache=%d, last=%d\n", |
455 | i, sti->regions_phys[i], glob_cfg->region_ptrs[i], | |
456 | len/1024, | |
457 | sti->regions[i].region_desc.btlb, | |
458 | sti->regions[i].region_desc.sys_only, | |
459 | sti->regions[i].region_desc.cache, | |
460 | sti->regions[i].region_desc.last)); | |
461 | ||
462 | /* last entry reached ? */ | |
463 | if (sti->regions[i].region_desc.last) | |
464 | break; | |
465 | } | |
466 | ||
467 | if (++i<8 && sti->regions[i].region) | |
468 | printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n", | |
469 | __FILE__, sti->regions[i].region); | |
470 | ||
471 | glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr); | |
472 | ||
473 | sti->glob_cfg = glob_cfg; | |
474 | ||
475 | return 0; | |
476 | } | |
477 | ||
478 | #ifdef CONFIG_FB | |
48c68c4f GKH |
479 | static struct sti_cooked_font * |
480 | sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) | |
1da177e4 | 481 | { |
cb6fc18e | 482 | const struct font_desc *fbfont; |
1da177e4 LT |
483 | unsigned int size, bpc; |
484 | void *dest; | |
485 | struct sti_rom_font *nf; | |
486 | struct sti_cooked_font *cooked_font; | |
487 | ||
488 | if (!fbfont_name || !strlen(fbfont_name)) | |
951a0150 | 489 | return NULL; |
1da177e4 LT |
490 | fbfont = find_font(fbfont_name); |
491 | if (!fbfont) | |
2d2699d9 | 492 | fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0); |
1da177e4 | 493 | if (!fbfont) |
951a0150 | 494 | return NULL; |
1da177e4 LT |
495 | |
496 | DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n", | |
497 | fbfont->width, fbfont->height, fbfont->name)); | |
498 | ||
499 | bpc = ((fbfont->width+7)/8) * fbfont->height; | |
500 | size = bpc * 256; | |
501 | size += sizeof(struct sti_rom_font); | |
502 | ||
cb6fc18e | 503 | nf = kzalloc(size, GFP_KERNEL); |
1da177e4 | 504 | if (!nf) |
951a0150 | 505 | return NULL; |
1da177e4 LT |
506 | |
507 | nf->first_char = 0; | |
508 | nf->last_char = 255; | |
509 | nf->width = fbfont->width; | |
510 | nf->height = fbfont->height; | |
511 | nf->font_type = STI_FONT_HPROMAN8; | |
512 | nf->bytes_per_char = bpc; | |
513 | nf->next_font = 0; | |
514 | nf->underline_height = 1; | |
515 | nf->underline_pos = fbfont->height - nf->underline_height; | |
516 | ||
517 | dest = nf; | |
518 | dest += sizeof(struct sti_rom_font); | |
519 | memcpy(dest, fbfont->data, bpc*256); | |
520 | ||
cb6fc18e | 521 | cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); |
1da177e4 | 522 | if (!cooked_font) { |
951a0150 MW |
523 | kfree(nf); |
524 | return NULL; | |
1da177e4 LT |
525 | } |
526 | ||
527 | cooked_font->raw = nf; | |
528 | cooked_font->next_font = NULL; | |
529 | ||
530 | cooked_rom->font_start = cooked_font; | |
531 | ||
532 | return cooked_font; | |
533 | } | |
534 | #else | |
48c68c4f GKH |
535 | static struct sti_cooked_font * |
536 | sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) | |
1da177e4 LT |
537 | { |
538 | return NULL; | |
539 | } | |
540 | #endif | |
541 | ||
48c68c4f GKH |
542 | static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom, |
543 | int (*search_font_fnc)(struct sti_cooked_rom *, int, int)) | |
1da177e4 LT |
544 | { |
545 | struct sti_cooked_font *font; | |
546 | int i; | |
547 | int index = num_sti_roms; | |
548 | ||
549 | /* check for framebuffer-font first */ | |
550 | if ((font = sti_select_fbfont(rom, font_name[index]))) | |
551 | return font; | |
552 | ||
553 | if (font_width[index] && font_height[index]) | |
554 | font_index[index] = search_font_fnc(rom, | |
555 | font_height[index], font_width[index]); | |
556 | ||
557 | for (font = rom->font_start, i = font_index[index]; | |
558 | font && (i > 0); | |
559 | font = font->next_font, i--); | |
560 | ||
561 | if (font) | |
562 | return font; | |
563 | else | |
564 | return rom->font_start; | |
565 | } | |
566 | ||
567 | ||
48c68c4f | 568 | static void sti_dump_rom(struct sti_rom *rom) |
1da177e4 | 569 | { |
951a0150 | 570 | printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n", |
1da177e4 LT |
571 | rom->graphics_id[0], |
572 | rom->graphics_id[1], | |
573 | rom->revno[0] >> 4, | |
574 | rom->revno[0] & 0x0f); | |
575 | DPRINTK((" supports %d monitors\n", rom->num_mons)); | |
576 | DPRINTK((" font start %08x\n", rom->font_start)); | |
577 | DPRINTK((" region list %08x\n", rom->region_list)); | |
578 | DPRINTK((" init_graph %08x\n", rom->init_graph)); | |
579 | DPRINTK((" bus support %02x\n", rom->bus_support)); | |
580 | DPRINTK((" ext bus support %02x\n", rom->ext_bus_support)); | |
581 | DPRINTK((" alternate code type %d\n", rom->alt_code_type)); | |
582 | } | |
583 | ||
584 | ||
48c68c4f GKH |
585 | static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom, |
586 | struct sti_rom *raw_rom) | |
1da177e4 LT |
587 | { |
588 | struct sti_rom_font *raw_font, *font_start; | |
589 | struct sti_cooked_font *cooked_font; | |
590 | ||
cb6fc18e | 591 | cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); |
1da177e4 LT |
592 | if (!cooked_font) |
593 | return 0; | |
594 | ||
595 | cooked_rom->font_start = cooked_font; | |
596 | ||
597 | raw_font = ((void *)raw_rom) + (raw_rom->font_start); | |
598 | ||
599 | font_start = raw_font; | |
600 | cooked_font->raw = raw_font; | |
601 | ||
602 | while (raw_font->next_font) { | |
603 | raw_font = ((void *)font_start) + (raw_font->next_font); | |
604 | ||
cb6fc18e | 605 | cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); |
1da177e4 LT |
606 | if (!cooked_font->next_font) |
607 | return 1; | |
608 | ||
609 | cooked_font = cooked_font->next_font; | |
610 | ||
611 | cooked_font->raw = raw_font; | |
612 | } | |
613 | ||
614 | cooked_font->next_font = NULL; | |
615 | return 1; | |
616 | } | |
617 | ||
618 | ||
48c68c4f | 619 | static int sti_search_font(struct sti_cooked_rom *rom, int height, int width) |
1da177e4 LT |
620 | { |
621 | struct sti_cooked_font *font; | |
622 | int i = 0; | |
623 | ||
951a0150 MW |
624 | for (font = rom->font_start; font; font = font->next_font, i++) { |
625 | if ((font->raw->width == width) && | |
626 | (font->raw->height == height)) | |
1da177e4 LT |
627 | return i; |
628 | } | |
629 | return 0; | |
630 | } | |
631 | ||
951a0150 MW |
632 | #define BMODE_RELOCATE(offset) offset = (offset) / 4; |
633 | #define BMODE_LAST_ADDR_OFFS 0x50 | |
1da177e4 | 634 | |
48c68c4f | 635 | static void *sti_bmode_font_raw(struct sti_cooked_font *f) |
1da177e4 LT |
636 | { |
637 | unsigned char *n, *p, *q; | |
638 | int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font); | |
639 | ||
cb6fc18e | 640 | n = kzalloc (4*size, GFP_KERNEL); |
1da177e4 LT |
641 | if (!n) |
642 | return NULL; | |
1da177e4 LT |
643 | p = n + 3; |
644 | q = (unsigned char *)f->raw; | |
645 | while (size--) { | |
646 | *p = *q++; | |
647 | p+=4; | |
648 | } | |
649 | return n + 3; | |
650 | } | |
651 | ||
48c68c4f GKH |
652 | static void sti_bmode_rom_copy(unsigned long base, unsigned long count, |
653 | void *dest) | |
1da177e4 | 654 | { |
1da177e4 LT |
655 | unsigned long dest_start = (unsigned long) dest; |
656 | ||
657 | while (count) { | |
658 | count--; | |
659 | *(u8 *)dest = gsc_readl(base); | |
660 | base += 4; | |
661 | dest++; | |
662 | } | |
03b18f1b KM |
663 | |
664 | sti_flush(dest_start, (unsigned long)dest); | |
1da177e4 LT |
665 | } |
666 | ||
48c68c4f | 667 | static struct sti_rom *sti_get_bmode_rom (unsigned long address) |
1da177e4 LT |
668 | { |
669 | struct sti_rom *raw; | |
670 | u32 size; | |
951a0150 MW |
671 | struct sti_rom_font *raw_font, *font_start; |
672 | ||
1da177e4 | 673 | sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size); |
951a0150 MW |
674 | |
675 | size = (size+3) / 4; | |
1da177e4 LT |
676 | raw = kmalloc(size, GFP_KERNEL); |
677 | if (raw) { | |
951a0150 MW |
678 | sti_bmode_rom_copy(address, size, raw); |
679 | memmove (&raw->res004, &raw->type[0], 0x3c); | |
680 | raw->type[3] = raw->res004; | |
1da177e4 | 681 | |
951a0150 MW |
682 | BMODE_RELOCATE (raw->region_list); |
683 | BMODE_RELOCATE (raw->font_start); | |
1da177e4 | 684 | |
951a0150 MW |
685 | BMODE_RELOCATE (raw->init_graph); |
686 | BMODE_RELOCATE (raw->state_mgmt); | |
687 | BMODE_RELOCATE (raw->font_unpmv); | |
688 | BMODE_RELOCATE (raw->block_move); | |
689 | BMODE_RELOCATE (raw->inq_conf); | |
1da177e4 | 690 | |
951a0150 MW |
691 | raw_font = ((void *)raw) + raw->font_start; |
692 | font_start = raw_font; | |
1da177e4 | 693 | |
951a0150 MW |
694 | while (raw_font->next_font) { |
695 | BMODE_RELOCATE (raw_font->next_font); | |
696 | raw_font = ((void *)font_start) + raw_font->next_font; | |
697 | } | |
1da177e4 | 698 | } |
951a0150 | 699 | return raw; |
1da177e4 LT |
700 | } |
701 | ||
48c68c4f | 702 | static struct sti_rom *sti_get_wmode_rom(unsigned long address) |
1da177e4 LT |
703 | { |
704 | struct sti_rom *raw; | |
705 | unsigned long size; | |
951a0150 | 706 | |
1da177e4 LT |
707 | /* read the ROM size directly from the struct in ROM */ |
708 | size = gsc_readl(address + offsetof(struct sti_rom,last_addr)); | |
709 | ||
710 | raw = kmalloc(size, GFP_KERNEL); | |
951a0150 MW |
711 | if (raw) |
712 | sti_rom_copy(address, size, raw); | |
1da177e4 | 713 | |
951a0150 | 714 | return raw; |
1da177e4 LT |
715 | } |
716 | ||
48c68c4f GKH |
717 | static int sti_read_rom(int wordmode, struct sti_struct *sti, |
718 | unsigned long address) | |
1da177e4 LT |
719 | { |
720 | struct sti_cooked_rom *cooked; | |
721 | struct sti_rom *raw = NULL; | |
fdac4e69 | 722 | unsigned long revno; |
1da177e4 LT |
723 | |
724 | cooked = kmalloc(sizeof *cooked, GFP_KERNEL); | |
725 | if (!cooked) | |
726 | goto out_err; | |
727 | ||
951a0150 MW |
728 | if (wordmode) |
729 | raw = sti_get_wmode_rom (address); | |
730 | else | |
731 | raw = sti_get_bmode_rom (address); | |
732 | ||
733 | if (!raw) | |
734 | goto out_err; | |
1da177e4 | 735 | |
1da177e4 LT |
736 | if (!sti_cook_fonts(cooked, raw)) { |
737 | printk(KERN_ERR "No font found for STI at %08lx\n", address); | |
738 | goto out_err; | |
739 | } | |
740 | ||
741 | if (raw->region_list) | |
742 | memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions)); | |
743 | ||
744 | address = (unsigned long) STI_PTR(raw); | |
745 | ||
746 | sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff); | |
747 | sti->block_move = address + (raw->block_move & 0x03ffffff); | |
748 | sti->init_graph = address + (raw->init_graph & 0x03ffffff); | |
749 | sti->inq_conf = address + (raw->inq_conf & 0x03ffffff); | |
750 | ||
751 | sti->rom = cooked; | |
752 | sti->rom->raw = raw; | |
753 | ||
754 | sti->font = sti_select_font(sti->rom, sti_search_font); | |
755 | sti->font_width = sti->font->raw->width; | |
756 | sti->font_height = sti->font->raw->height; | |
757 | if (!wordmode) | |
951a0150 | 758 | sti->font->raw = sti_bmode_font_raw(sti->font); |
1da177e4 LT |
759 | |
760 | sti->sti_mem_request = raw->sti_mem_req; | |
761 | sti->graphics_id[0] = raw->graphics_id[0]; | |
762 | sti->graphics_id[1] = raw->graphics_id[1]; | |
763 | ||
764 | sti_dump_rom(raw); | |
fdac4e69 HD |
765 | |
766 | /* check if the ROM routines in this card are compatible */ | |
767 | if (wordmode || sti->graphics_id[1] != 0x09A02587) | |
768 | goto ok; | |
769 | ||
770 | revno = (raw->revno[0] << 8) | raw->revno[1]; | |
771 | ||
772 | switch (sti->graphics_id[0]) { | |
773 | case S9000_ID_HCRX: | |
774 | /* HyperA or HyperB ? */ | |
775 | if (revno == 0x8408 || revno == 0x840b) | |
776 | goto msg_not_supported; | |
777 | break; | |
778 | case CRT_ID_THUNDER: | |
779 | if (revno == 0x8509) | |
780 | goto msg_not_supported; | |
781 | break; | |
782 | case CRT_ID_THUNDER2: | |
783 | if (revno == 0x850c) | |
784 | goto msg_not_supported; | |
785 | } | |
786 | ok: | |
1da177e4 LT |
787 | return 1; |
788 | ||
fdac4e69 HD |
789 | msg_not_supported: |
790 | printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n"); | |
791 | printk(KERN_ERR "Please see http://parisc-linux.org/faq/" | |
792 | "graphics-howto.html for more info.\n"); | |
793 | /* fall through */ | |
1da177e4 LT |
794 | out_err: |
795 | kfree(raw); | |
796 | kfree(cooked); | |
797 | return 0; | |
798 | } | |
799 | ||
48c68c4f GKH |
800 | static struct sti_struct *sti_try_rom_generic(unsigned long address, |
801 | unsigned long hpa, | |
802 | struct pci_dev *pd) | |
1da177e4 LT |
803 | { |
804 | struct sti_struct *sti; | |
805 | int ok; | |
806 | u32 sig; | |
807 | ||
808 | if (num_sti_roms >= MAX_STI_ROMS) { | |
951a0150 MW |
809 | printk(KERN_WARNING "maximum number of STI ROMS reached !\n"); |
810 | return NULL; | |
1da177e4 LT |
811 | } |
812 | ||
cb6fc18e | 813 | sti = kzalloc(sizeof(*sti), GFP_KERNEL); |
1da177e4 | 814 | if (!sti) { |
951a0150 MW |
815 | printk(KERN_ERR "Not enough memory !\n"); |
816 | return NULL; | |
1da177e4 | 817 | } |
951a0150 | 818 | |
1da177e4 LT |
819 | spin_lock_init(&sti->lock); |
820 | ||
821 | test_rom: | |
822 | /* if we can't read the ROM, bail out early. Not being able | |
823 | * to read the hpa is okay, for romless sti */ | |
824 | if (pdc_add_valid(address)) | |
825 | goto out_err; | |
826 | ||
827 | sig = gsc_readl(address); | |
828 | ||
829 | /* check for a PCI ROM structure */ | |
830 | if ((le32_to_cpu(sig)==0xaa55)) { | |
831 | unsigned int i, rm_offset; | |
832 | u32 *rm; | |
833 | i = gsc_readl(address+0x04); | |
834 | if (i != 1) { | |
835 | /* The ROM could have multiple architecture | |
836 | * dependent images (e.g. i386, parisc,...) */ | |
837 | printk(KERN_WARNING | |
838 | "PCI ROM is not a STI ROM type image (0x%8x)\n", i); | |
839 | goto out_err; | |
840 | } | |
841 | ||
842 | sti->pd = pd; | |
843 | ||
844 | i = gsc_readl(address+0x0c); | |
845 | DPRINTK(("PCI ROM size (from header) = %d kB\n", | |
846 | le16_to_cpu(i>>16)*512/1024)); | |
847 | rm_offset = le16_to_cpu(i & 0xffff); | |
848 | if (rm_offset) { | |
849 | /* read 16 bytes from the pci region mapper array */ | |
850 | rm = (u32*) &sti->rm_entry; | |
851 | *rm++ = gsc_readl(address+rm_offset+0x00); | |
852 | *rm++ = gsc_readl(address+rm_offset+0x04); | |
853 | *rm++ = gsc_readl(address+rm_offset+0x08); | |
854 | *rm++ = gsc_readl(address+rm_offset+0x0c); | |
855 | DPRINTK(("PCI region Mapper offset = %08x: ", | |
856 | rm_offset)); | |
857 | for (i=0; i<16; i++) | |
858 | DPRINTK(("%02x ", sti->rm_entry[i])); | |
859 | DPRINTK(("\n")); | |
860 | } | |
861 | ||
862 | address += le32_to_cpu(gsc_readl(address+8)); | |
863 | DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address)); | |
864 | goto test_rom; | |
865 | } | |
866 | ||
867 | ok = 0; | |
868 | ||
869 | if ((sig & 0xff) == 0x01) { | |
870 | DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n", | |
871 | address, hpa)); | |
872 | ok = sti_read_rom(0, sti, address); | |
873 | } | |
874 | ||
875 | if ((sig & 0xffff) == 0x0303) { | |
876 | DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n", | |
877 | address, hpa)); | |
878 | ok = sti_read_rom(1, sti, address); | |
879 | } | |
880 | ||
881 | if (!ok) | |
882 | goto out_err; | |
883 | ||
884 | if (sti_init_glob_cfg(sti, address, hpa)) | |
885 | goto out_err; /* not enough memory */ | |
886 | ||
887 | /* disable STI PCI ROM. ROM and card RAM overlap and | |
888 | * leaving it enabled would force HPMCs | |
889 | */ | |
890 | if (sti->pd) { | |
891 | unsigned long rom_base; | |
892 | rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE); | |
893 | pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE); | |
894 | DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n")); | |
895 | } | |
896 | ||
897 | if (sti_init_graph(sti)) | |
898 | goto out_err; | |
899 | ||
900 | sti_inq_conf(sti); | |
901 | sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request); | |
902 | sti_dump_outptr(sti); | |
903 | ||
904 | printk(KERN_INFO " graphics card name: %s\n", sti->outptr.dev_name ); | |
905 | ||
906 | sti_roms[num_sti_roms] = sti; | |
907 | num_sti_roms++; | |
908 | ||
909 | return sti; | |
910 | ||
911 | out_err: | |
912 | kfree(sti); | |
913 | return NULL; | |
914 | } | |
915 | ||
48c68c4f | 916 | static void sticore_check_for_default_sti(struct sti_struct *sti, char *path) |
1da177e4 LT |
917 | { |
918 | if (strcmp (path, default_sti_path) == 0) | |
919 | default_sti = sti; | |
920 | } | |
921 | ||
922 | /* | |
923 | * on newer systems PDC gives the address of the ROM | |
924 | * in the additional address field addr[1] while on | |
925 | * older Systems the PDC stores it in page0->proc_sti | |
926 | */ | |
48c68c4f | 927 | static int sticore_pa_init(struct parisc_device *dev) |
1da177e4 | 928 | { |
1da177e4 LT |
929 | char pa_path[21]; |
930 | struct sti_struct *sti = NULL; | |
951a0150 MW |
931 | int hpa = dev->hpa.start; |
932 | ||
933 | if (dev->num_addrs && dev->addr[0]) | |
934 | sti = sti_try_rom_generic(dev->addr[0], hpa, NULL); | |
935 | if (!sti) | |
936 | sti = sti_try_rom_generic(hpa, hpa, NULL); | |
937 | if (!sti) | |
938 | sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL); | |
1da177e4 LT |
939 | if (!sti) |
940 | return 1; | |
951a0150 | 941 | |
1da177e4 | 942 | print_pa_hwpath(dev, pa_path); |
951a0150 | 943 | sticore_check_for_default_sti(sti, pa_path); |
1da177e4 LT |
944 | return 0; |
945 | } | |
946 | ||
947 | ||
48c68c4f | 948 | static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent) |
1da177e4 LT |
949 | { |
950 | #ifdef CONFIG_PCI | |
951 | unsigned long fb_base, rom_base; | |
952 | unsigned int fb_len, rom_len; | |
1a1dba32 | 953 | int err; |
1da177e4 LT |
954 | struct sti_struct *sti; |
955 | ||
1a1dba32 HD |
956 | err = pci_enable_device(pd); |
957 | if (err < 0) { | |
958 | dev_err(&pd->dev, "Cannot enable PCI device\n"); | |
959 | return err; | |
960 | } | |
1da177e4 LT |
961 | |
962 | fb_base = pci_resource_start(pd, 0); | |
963 | fb_len = pci_resource_len(pd, 0); | |
964 | rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE); | |
965 | rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE); | |
966 | if (rom_base) { | |
967 | pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE); | |
968 | DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base)); | |
969 | } | |
970 | ||
971 | printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n", | |
972 | rom_base, rom_len/1024, fb_base, fb_len/1024/1024); | |
973 | ||
974 | DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n", | |
975 | rom_base, fb_base)); | |
976 | ||
977 | sti = sti_try_rom_generic(rom_base, fb_base, pd); | |
978 | if (sti) { | |
979 | char pa_path[30]; | |
980 | print_pci_hwpath(pd, pa_path); | |
981 | sticore_check_for_default_sti(sti, pa_path); | |
982 | } | |
983 | ||
984 | if (!sti) { | |
985 | printk(KERN_WARNING "Unable to handle STI device '%s'\n", | |
986 | pci_name(pd)); | |
987 | return -ENODEV; | |
988 | } | |
989 | #endif /* CONFIG_PCI */ | |
990 | ||
991 | return 0; | |
992 | } | |
993 | ||
994 | ||
48c68c4f | 995 | static void sticore_pci_remove(struct pci_dev *pd) |
1da177e4 LT |
996 | { |
997 | BUG(); | |
998 | } | |
999 | ||
1000 | ||
1001 | static struct pci_device_id sti_pci_tbl[] = { | |
1002 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) }, | |
1003 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) }, | |
1004 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) }, | |
1005 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) }, | |
1006 | { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) }, | |
1007 | { 0, } /* terminate list */ | |
1008 | }; | |
1009 | MODULE_DEVICE_TABLE(pci, sti_pci_tbl); | |
1010 | ||
1011 | static struct pci_driver pci_sti_driver = { | |
1012 | .name = "sti", | |
1013 | .id_table = sti_pci_tbl, | |
1014 | .probe = sticore_pci_init, | |
1015 | .remove = sticore_pci_remove, | |
1016 | }; | |
1017 | ||
1018 | static struct parisc_device_id sti_pa_tbl[] = { | |
1019 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 }, | |
1020 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 }, | |
1021 | { 0, } | |
1022 | }; | |
1023 | ||
1024 | static struct parisc_driver pa_sti_driver = { | |
1025 | .name = "sti", | |
1026 | .id_table = sti_pa_tbl, | |
1027 | .probe = sticore_pa_init, | |
1028 | }; | |
1029 | ||
1030 | ||
1031 | /* | |
1032 | * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[] | |
1033 | */ | |
1034 | ||
cb6fc18e | 1035 | static int sticore_initialized __read_mostly; |
1da177e4 | 1036 | |
48c68c4f | 1037 | static void sti_init_roms(void) |
1da177e4 LT |
1038 | { |
1039 | if (sticore_initialized) | |
1040 | return; | |
1041 | ||
1042 | sticore_initialized = 1; | |
1043 | ||
1044 | printk(KERN_INFO "STI GSC/PCI core graphics driver " | |
1045 | STI_DRIVERVERSION "\n"); | |
1046 | ||
1047 | /* Register drivers for native & PCI cards */ | |
1048 | register_parisc_driver(&pa_sti_driver); | |
1a1dba32 | 1049 | WARN_ON(pci_register_driver(&pci_sti_driver)); |
1da177e4 LT |
1050 | |
1051 | /* if we didn't find the given default sti, take the first one */ | |
1052 | if (!default_sti) | |
1053 | default_sti = sti_roms[0]; | |
1054 | ||
1055 | } | |
1056 | ||
1057 | /* | |
1058 | * index = 0 gives default sti | |
1059 | * index > 0 gives other stis in detection order | |
1060 | */ | |
1061 | struct sti_struct * sti_get_rom(unsigned int index) | |
1062 | { | |
1063 | if (!sticore_initialized) | |
1064 | sti_init_roms(); | |
1065 | ||
1066 | if (index == 0) | |
1067 | return default_sti; | |
1068 | ||
1069 | if (index > num_sti_roms) | |
1070 | return NULL; | |
1071 | ||
1072 | return sti_roms[index-1]; | |
1073 | } | |
1074 | EXPORT_SYMBOL(sti_get_rom); | |
1075 | ||
1076 | MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer"); | |
1077 | MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines"); | |
1078 | MODULE_LICENSE("GPL v2"); | |
1079 |