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1da177e4 LT |
1 | #include "radeonfb.h" |
2 | #include "../edid.h" | |
3 | ||
4 | static struct fb_var_screeninfo radeonfb_default_var = { | |
5 | .xres = 640, | |
6 | .yres = 480, | |
7 | .xres_virtual = 640, | |
8 | .yres_virtual = 480, | |
9 | .bits_per_pixel = 8, | |
10 | .red = { .length = 8 }, | |
11 | .green = { .length = 8 }, | |
12 | .blue = { .length = 8 }, | |
13 | .activate = FB_ACTIVATE_NOW, | |
14 | .height = -1, | |
15 | .width = -1, | |
16 | .pixclock = 39721, | |
17 | .left_margin = 40, | |
18 | .right_margin = 24, | |
19 | .upper_margin = 32, | |
20 | .lower_margin = 11, | |
21 | .hsync_len = 96, | |
22 | .vsync_len = 2, | |
23 | .vmode = FB_VMODE_NONINTERLACED | |
24 | }; | |
25 | ||
26 | static char *radeon_get_mon_name(int type) | |
27 | { | |
28 | char *pret = NULL; | |
29 | ||
30 | switch (type) { | |
31 | case MT_NONE: | |
32 | pret = "no"; | |
33 | break; | |
34 | case MT_CRT: | |
35 | pret = "CRT"; | |
36 | break; | |
37 | case MT_DFP: | |
38 | pret = "DFP"; | |
39 | break; | |
40 | case MT_LCD: | |
41 | pret = "LCD"; | |
42 | break; | |
43 | case MT_CTV: | |
44 | pret = "CTV"; | |
45 | break; | |
46 | case MT_STV: | |
47 | pret = "STV"; | |
48 | break; | |
49 | } | |
50 | ||
51 | return pret; | |
52 | } | |
53 | ||
54 | ||
55 | #ifdef CONFIG_PPC_OF | |
56 | /* | |
57 | * Try to find monitor informations & EDID data out of the Open Firmware | |
58 | * device-tree. This also contains some "hacks" to work around a few machine | |
59 | * models with broken OF probing by hard-coding known EDIDs for some Mac | |
60 | * laptops internal LVDS panel. (XXX: not done yet) | |
61 | */ | |
62 | static int __devinit radeon_parse_montype_prop(struct device_node *dp, u8 **out_EDID, | |
63 | int hdno) | |
64 | { | |
65 | static char *propnames[] = { "DFP,EDID", "LCD,EDID", "EDID", | |
66 | "EDID1", "EDID2", NULL }; | |
67 | u8 *pedid = NULL; | |
68 | u8 *pmt = NULL; | |
69 | u8 *tmp; | |
70 | int i, mt = MT_NONE; | |
71 | ||
72 | RTRACE("analyzing OF properties...\n"); | |
73 | pmt = (u8 *)get_property(dp, "display-type", NULL); | |
74 | if (!pmt) | |
75 | return MT_NONE; | |
76 | RTRACE("display-type: %s\n", pmt); | |
77 | /* OF says "LCD" for DFP as well, we discriminate from the caller of this | |
78 | * function | |
79 | */ | |
80 | if (!strcmp(pmt, "LCD") || !strcmp(pmt, "DFP")) | |
81 | mt = MT_DFP; | |
82 | else if (!strcmp(pmt, "CRT")) | |
83 | mt = MT_CRT; | |
84 | else { | |
85 | if (strcmp(pmt, "NONE") != 0) | |
86 | printk(KERN_WARNING "radeonfb: Unknown OF display-type: %s\n", | |
87 | pmt); | |
88 | return MT_NONE; | |
89 | } | |
90 | ||
91 | for (i = 0; propnames[i] != NULL; ++i) { | |
92 | pedid = (u8 *)get_property(dp, propnames[i], NULL); | |
93 | if (pedid != NULL) | |
94 | break; | |
95 | } | |
96 | /* We didn't find the EDID in the leaf node, some cards will actually | |
97 | * put EDID1/EDID2 in the parent, look for these (typically M6 tipb). | |
98 | * single-head cards have hdno == -1 and skip this step | |
99 | */ | |
100 | if (pedid == NULL && dp->parent && (hdno != -1)) | |
101 | pedid = get_property(dp->parent, (hdno == 0) ? "EDID1" : "EDID2", NULL); | |
102 | if (pedid == NULL && dp->parent && (hdno == 0)) | |
103 | pedid = get_property(dp->parent, "EDID", NULL); | |
104 | if (pedid == NULL) | |
105 | return mt; | |
106 | ||
107 | tmp = (u8 *)kmalloc(EDID_LENGTH, GFP_KERNEL); | |
108 | if (!tmp) | |
109 | return mt; | |
110 | memcpy(tmp, pedid, EDID_LENGTH); | |
111 | *out_EDID = tmp; | |
112 | return mt; | |
113 | } | |
114 | ||
115 | static int __devinit radeon_probe_OF_head(struct radeonfb_info *rinfo, int head_no, | |
116 | u8 **out_EDID) | |
117 | { | |
118 | struct device_node *dp; | |
119 | ||
120 | RTRACE("radeon_probe_OF_head\n"); | |
121 | ||
122 | dp = rinfo->of_node; | |
123 | while (dp == NULL) | |
124 | return MT_NONE; | |
125 | ||
126 | if (rinfo->has_CRTC2) { | |
127 | char *pname; | |
128 | int len, second = 0; | |
129 | ||
130 | dp = dp->child; | |
131 | do { | |
132 | if (!dp) | |
133 | return MT_NONE; | |
134 | pname = (char *)get_property(dp, "name", NULL); | |
135 | if (!pname) | |
136 | return MT_NONE; | |
137 | len = strlen(pname); | |
138 | RTRACE("head: %s (letter: %c, head_no: %d)\n", | |
139 | pname, pname[len-1], head_no); | |
140 | if (pname[len-1] == 'A' && head_no == 0) { | |
141 | int mt = radeon_parse_montype_prop(dp, out_EDID, 0); | |
142 | /* Maybe check for LVDS_GEN_CNTL here ? I need to check out | |
143 | * what OF does when booting with lid closed | |
144 | */ | |
145 | if (mt == MT_DFP && rinfo->is_mobility) | |
146 | mt = MT_LCD; | |
147 | return mt; | |
148 | } else if (pname[len-1] == 'B' && head_no == 1) | |
149 | return radeon_parse_montype_prop(dp, out_EDID, 1); | |
150 | second = 1; | |
151 | dp = dp->sibling; | |
152 | } while(!second); | |
153 | } else { | |
154 | if (head_no > 0) | |
155 | return MT_NONE; | |
156 | return radeon_parse_montype_prop(dp, out_EDID, -1); | |
157 | } | |
158 | return MT_NONE; | |
159 | } | |
160 | #endif /* CONFIG_PPC_OF */ | |
161 | ||
162 | ||
163 | static int __devinit radeon_get_panel_info_BIOS(struct radeonfb_info *rinfo) | |
164 | { | |
165 | unsigned long tmp, tmp0; | |
166 | char stmp[30]; | |
167 | int i; | |
168 | ||
169 | if (!rinfo->bios_seg) | |
170 | return 0; | |
171 | ||
172 | if (!(tmp = BIOS_IN16(rinfo->fp_bios_start + 0x40))) { | |
173 | printk(KERN_ERR "radeonfb: Failed to detect DFP panel info using BIOS\n"); | |
174 | rinfo->panel_info.pwr_delay = 200; | |
175 | return 0; | |
176 | } | |
177 | ||
178 | for(i=0; i<24; i++) | |
179 | stmp[i] = BIOS_IN8(tmp+i+1); | |
180 | stmp[24] = 0; | |
181 | printk("radeonfb: panel ID string: %s\n", stmp); | |
182 | rinfo->panel_info.xres = BIOS_IN16(tmp + 25); | |
183 | rinfo->panel_info.yres = BIOS_IN16(tmp + 27); | |
184 | printk("radeonfb: detected LVDS panel size from BIOS: %dx%d\n", | |
185 | rinfo->panel_info.xres, rinfo->panel_info.yres); | |
186 | ||
187 | rinfo->panel_info.pwr_delay = BIOS_IN16(tmp + 44); | |
188 | RTRACE("BIOS provided panel power delay: %d\n", rinfo->panel_info.pwr_delay); | |
189 | if (rinfo->panel_info.pwr_delay > 2000 || rinfo->panel_info.pwr_delay <= 0) | |
190 | rinfo->panel_info.pwr_delay = 2000; | |
191 | ||
192 | /* | |
193 | * Some panels only work properly with some divider combinations | |
194 | */ | |
195 | rinfo->panel_info.ref_divider = BIOS_IN16(tmp + 46); | |
196 | rinfo->panel_info.post_divider = BIOS_IN8(tmp + 48); | |
197 | rinfo->panel_info.fbk_divider = BIOS_IN16(tmp + 49); | |
198 | if (rinfo->panel_info.ref_divider != 0 && | |
199 | rinfo->panel_info.fbk_divider > 3) { | |
200 | rinfo->panel_info.use_bios_dividers = 1; | |
201 | printk(KERN_INFO "radeondb: BIOS provided dividers will be used\n"); | |
202 | RTRACE("ref_divider = %x\n", rinfo->panel_info.ref_divider); | |
203 | RTRACE("post_divider = %x\n", rinfo->panel_info.post_divider); | |
204 | RTRACE("fbk_divider = %x\n", rinfo->panel_info.fbk_divider); | |
205 | } | |
206 | RTRACE("Scanning BIOS table ...\n"); | |
207 | for(i=0; i<32; i++) { | |
208 | tmp0 = BIOS_IN16(tmp+64+i*2); | |
209 | if (tmp0 == 0) | |
210 | break; | |
211 | RTRACE(" %d x %d\n", BIOS_IN16(tmp0), BIOS_IN16(tmp0+2)); | |
212 | if ((BIOS_IN16(tmp0) == rinfo->panel_info.xres) && | |
213 | (BIOS_IN16(tmp0+2) == rinfo->panel_info.yres)) { | |
214 | rinfo->panel_info.hblank = (BIOS_IN16(tmp0+17) - BIOS_IN16(tmp0+19)) * 8; | |
215 | rinfo->panel_info.hOver_plus = ((BIOS_IN16(tmp0+21) - | |
216 | BIOS_IN16(tmp0+19) -1) * 8) & 0x7fff; | |
217 | rinfo->panel_info.hSync_width = BIOS_IN8(tmp0+23) * 8; | |
218 | rinfo->panel_info.vblank = BIOS_IN16(tmp0+24) - BIOS_IN16(tmp0+26); | |
219 | rinfo->panel_info.vOver_plus = (BIOS_IN16(tmp0+28) & 0x7ff) - BIOS_IN16(tmp0+26); | |
220 | rinfo->panel_info.vSync_width = (BIOS_IN16(tmp0+28) & 0xf800) >> 11; | |
221 | rinfo->panel_info.clock = BIOS_IN16(tmp0+9); | |
222 | /* Assume high active syncs for now until ATI tells me more... maybe we | |
223 | * can probe register values here ? | |
224 | */ | |
225 | rinfo->panel_info.hAct_high = 1; | |
226 | rinfo->panel_info.vAct_high = 1; | |
227 | /* Mark panel infos valid */ | |
228 | rinfo->panel_info.valid = 1; | |
229 | ||
230 | RTRACE("Found panel in BIOS table:\n"); | |
231 | RTRACE(" hblank: %d\n", rinfo->panel_info.hblank); | |
232 | RTRACE(" hOver_plus: %d\n", rinfo->panel_info.hOver_plus); | |
233 | RTRACE(" hSync_width: %d\n", rinfo->panel_info.hSync_width); | |
234 | RTRACE(" vblank: %d\n", rinfo->panel_info.vblank); | |
235 | RTRACE(" vOver_plus: %d\n", rinfo->panel_info.vOver_plus); | |
236 | RTRACE(" vSync_width: %d\n", rinfo->panel_info.vSync_width); | |
237 | RTRACE(" clock: %d\n", rinfo->panel_info.clock); | |
238 | ||
239 | return 1; | |
240 | } | |
241 | } | |
242 | RTRACE("Didn't find panel in BIOS table !\n"); | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
247 | /* Try to extract the connector informations from the BIOS. This | |
248 | * doesn't quite work yet, but it's output is still useful for | |
249 | * debugging | |
250 | */ | |
251 | static void __devinit radeon_parse_connector_info(struct radeonfb_info *rinfo) | |
252 | { | |
253 | int offset, chips, connectors, tmp, i, conn, type; | |
254 | ||
255 | static char* __conn_type_table[16] = { | |
256 | "NONE", "Proprietary", "CRT", "DVI-I", "DVI-D", "Unknown", "Unknown", | |
257 | "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", | |
258 | "Unknown", "Unknown", "Unknown" | |
259 | }; | |
260 | ||
261 | if (!rinfo->bios_seg) | |
262 | return; | |
263 | ||
264 | offset = BIOS_IN16(rinfo->fp_bios_start + 0x50); | |
265 | if (offset == 0) { | |
266 | printk(KERN_WARNING "radeonfb: No connector info table detected\n"); | |
267 | return; | |
268 | } | |
269 | ||
270 | /* Don't do much more at this point but displaying the data if | |
271 | * DEBUG is enabled | |
272 | */ | |
273 | chips = BIOS_IN8(offset++) >> 4; | |
274 | RTRACE("%d chips in connector info\n", chips); | |
275 | for (i = 0; i < chips; i++) { | |
276 | tmp = BIOS_IN8(offset++); | |
277 | connectors = tmp & 0x0f; | |
278 | RTRACE(" - chip %d has %d connectors\n", tmp >> 4, connectors); | |
279 | for (conn = 0; ; conn++) { | |
280 | tmp = BIOS_IN16(offset); | |
281 | if (tmp == 0) | |
282 | break; | |
283 | offset += 2; | |
284 | type = (tmp >> 12) & 0x0f; | |
285 | RTRACE(" * connector %d of type %d (%s) : %04x\n", | |
286 | conn, type, __conn_type_table[type], tmp); | |
287 | } | |
288 | } | |
289 | } | |
290 | ||
291 | ||
292 | /* | |
293 | * Probe physical connection of a CRT. This code comes from XFree | |
294 | * as well and currently is only implemented for the CRT DAC, the | |
295 | * code for the TVDAC is commented out in XFree as "non working" | |
296 | */ | |
297 | static int __devinit radeon_crt_is_connected(struct radeonfb_info *rinfo, int is_crt_dac) | |
298 | { | |
299 | int connected = 0; | |
300 | ||
301 | /* the monitor either wasn't connected or it is a non-DDC CRT. | |
302 | * try to probe it | |
303 | */ | |
304 | if (is_crt_dac) { | |
305 | unsigned long ulOrigVCLK_ECP_CNTL; | |
306 | unsigned long ulOrigDAC_CNTL; | |
307 | unsigned long ulOrigDAC_EXT_CNTL; | |
308 | unsigned long ulOrigCRTC_EXT_CNTL; | |
309 | unsigned long ulData; | |
310 | unsigned long ulMask; | |
311 | ||
312 | ulOrigVCLK_ECP_CNTL = INPLL(VCLK_ECP_CNTL); | |
313 | ||
314 | ulData = ulOrigVCLK_ECP_CNTL; | |
315 | ulData &= ~(PIXCLK_ALWAYS_ONb | |
316 | | PIXCLK_DAC_ALWAYS_ONb); | |
317 | ulMask = ~(PIXCLK_ALWAYS_ONb | |
318 | | PIXCLK_DAC_ALWAYS_ONb); | |
319 | OUTPLLP(VCLK_ECP_CNTL, ulData, ulMask); | |
320 | ||
321 | ulOrigCRTC_EXT_CNTL = INREG(CRTC_EXT_CNTL); | |
322 | ulData = ulOrigCRTC_EXT_CNTL; | |
323 | ulData |= CRTC_CRT_ON; | |
324 | OUTREG(CRTC_EXT_CNTL, ulData); | |
325 | ||
326 | ulOrigDAC_EXT_CNTL = INREG(DAC_EXT_CNTL); | |
327 | ulData = ulOrigDAC_EXT_CNTL; | |
328 | ulData &= ~DAC_FORCE_DATA_MASK; | |
329 | ulData |= (DAC_FORCE_BLANK_OFF_EN | |
330 | |DAC_FORCE_DATA_EN | |
331 | |DAC_FORCE_DATA_SEL_MASK); | |
332 | if ((rinfo->family == CHIP_FAMILY_RV250) || | |
333 | (rinfo->family == CHIP_FAMILY_RV280)) | |
334 | ulData |= (0x01b6 << DAC_FORCE_DATA_SHIFT); | |
335 | else | |
336 | ulData |= (0x01ac << DAC_FORCE_DATA_SHIFT); | |
337 | ||
338 | OUTREG(DAC_EXT_CNTL, ulData); | |
339 | ||
340 | ulOrigDAC_CNTL = INREG(DAC_CNTL); | |
341 | ulData = ulOrigDAC_CNTL; | |
342 | ulData |= DAC_CMP_EN; | |
343 | ulData &= ~(DAC_RANGE_CNTL_MASK | |
344 | | DAC_PDWN); | |
345 | ulData |= 0x2; | |
346 | OUTREG(DAC_CNTL, ulData); | |
347 | ||
348 | mdelay(1); | |
349 | ||
350 | ulData = INREG(DAC_CNTL); | |
351 | connected = (DAC_CMP_OUTPUT & ulData) ? 1 : 0; | |
352 | ||
353 | ulData = ulOrigVCLK_ECP_CNTL; | |
354 | ulMask = 0xFFFFFFFFL; | |
355 | OUTPLLP(VCLK_ECP_CNTL, ulData, ulMask); | |
356 | ||
357 | OUTREG(DAC_CNTL, ulOrigDAC_CNTL ); | |
358 | OUTREG(DAC_EXT_CNTL, ulOrigDAC_EXT_CNTL ); | |
359 | OUTREG(CRTC_EXT_CNTL, ulOrigCRTC_EXT_CNTL); | |
360 | } | |
361 | ||
362 | return connected ? MT_CRT : MT_NONE; | |
363 | } | |
364 | ||
365 | /* | |
366 | * Parse the "monitor_layout" string if any. This code is mostly | |
367 | * copied from XFree's radeon driver | |
368 | */ | |
369 | static int __devinit radeon_parse_monitor_layout(struct radeonfb_info *rinfo, | |
370 | const char *monitor_layout) | |
371 | { | |
372 | char s1[5], s2[5]; | |
373 | int i = 0, second = 0; | |
374 | const char *s; | |
375 | ||
376 | if (!monitor_layout) | |
377 | return 0; | |
378 | ||
379 | s = monitor_layout; | |
380 | do { | |
381 | switch(*s) { | |
382 | case ',': | |
383 | s1[i] = '\0'; | |
384 | i = 0; | |
385 | second = 1; | |
386 | break; | |
387 | case ' ': | |
388 | case '\0': | |
389 | break; | |
390 | default: | |
391 | if (i > 4) | |
392 | break; | |
393 | if (second) | |
394 | s2[i] = *s; | |
395 | else | |
396 | s1[i] = *s; | |
397 | i++; | |
398 | } | |
399 | } while (*s++); | |
400 | if (second) | |
401 | s2[i] = 0; | |
402 | else { | |
403 | s1[i] = 0; | |
404 | s2[0] = 0; | |
405 | } | |
406 | if (strcmp(s1, "CRT") == 0) | |
407 | rinfo->mon1_type = MT_CRT; | |
408 | else if (strcmp(s1, "TMDS") == 0) | |
409 | rinfo->mon1_type = MT_DFP; | |
410 | else if (strcmp(s1, "LVDS") == 0) | |
411 | rinfo->mon1_type = MT_LCD; | |
412 | ||
413 | if (strcmp(s2, "CRT") == 0) | |
414 | rinfo->mon2_type = MT_CRT; | |
415 | else if (strcmp(s2, "TMDS") == 0) | |
416 | rinfo->mon2_type = MT_DFP; | |
417 | else if (strcmp(s2, "LVDS") == 0) | |
418 | rinfo->mon2_type = MT_LCD; | |
419 | ||
420 | return 1; | |
421 | } | |
422 | ||
423 | /* | |
424 | * Probe display on both primary and secondary card's connector (if any) | |
425 | * by various available techniques (i2c, OF device tree, BIOS, ...) and | |
426 | * try to retreive EDID. The algorithm here comes from XFree's radeon | |
427 | * driver | |
428 | */ | |
429 | void __devinit radeon_probe_screens(struct radeonfb_info *rinfo, | |
430 | const char *monitor_layout, int ignore_edid) | |
431 | { | |
432 | #ifdef CONFIG_FB_RADEON_I2C | |
433 | int ddc_crt2_used = 0; | |
434 | #endif | |
435 | int tmp, i; | |
436 | ||
437 | radeon_parse_connector_info(rinfo); | |
438 | ||
439 | if (radeon_parse_monitor_layout(rinfo, monitor_layout)) { | |
440 | ||
441 | /* | |
442 | * If user specified a monitor_layout option, use it instead | |
443 | * of auto-detecting. Maybe we should only use this argument | |
444 | * on the first radeon card probed or provide a way to specify | |
445 | * a layout for each card ? | |
446 | */ | |
447 | ||
448 | RTRACE("Using specified monitor layout: %s", monitor_layout); | |
449 | #ifdef CONFIG_FB_RADEON_I2C | |
450 | if (!ignore_edid) { | |
451 | if (rinfo->mon1_type != MT_NONE) | |
452 | if (!radeon_probe_i2c_connector(rinfo, ddc_dvi, &rinfo->mon1_EDID)) { | |
453 | radeon_probe_i2c_connector(rinfo, ddc_crt2, &rinfo->mon1_EDID); | |
454 | ddc_crt2_used = 1; | |
455 | } | |
456 | if (rinfo->mon2_type != MT_NONE) | |
457 | if (!radeon_probe_i2c_connector(rinfo, ddc_vga, &rinfo->mon2_EDID) && | |
458 | !ddc_crt2_used) | |
459 | radeon_probe_i2c_connector(rinfo, ddc_crt2, &rinfo->mon2_EDID); | |
460 | } | |
461 | #endif /* CONFIG_FB_RADEON_I2C */ | |
462 | if (rinfo->mon1_type == MT_NONE) { | |
463 | if (rinfo->mon2_type != MT_NONE) { | |
464 | rinfo->mon1_type = rinfo->mon2_type; | |
465 | rinfo->mon1_EDID = rinfo->mon2_EDID; | |
466 | } else { | |
467 | rinfo->mon1_type = MT_CRT; | |
468 | printk(KERN_INFO "radeonfb: No valid monitor, assuming CRT on first port\n"); | |
469 | } | |
470 | rinfo->mon2_type = MT_NONE; | |
471 | rinfo->mon2_EDID = NULL; | |
472 | } | |
473 | } else { | |
474 | /* | |
475 | * Auto-detecting display type (well... trying to ...) | |
476 | */ | |
477 | ||
478 | RTRACE("Starting monitor auto detection...\n"); | |
479 | ||
480 | #if DEBUG && defined(CONFIG_FB_RADEON_I2C) | |
481 | { | |
482 | u8 *EDIDs[4] = { NULL, NULL, NULL, NULL }; | |
483 | int mon_types[4] = {MT_NONE, MT_NONE, MT_NONE, MT_NONE}; | |
484 | int i; | |
485 | ||
486 | for (i = 0; i < 4; i++) | |
487 | mon_types[i] = radeon_probe_i2c_connector(rinfo, | |
488 | i+1, &EDIDs[i]); | |
489 | } | |
490 | #endif /* DEBUG */ | |
491 | /* | |
492 | * Old single head cards | |
493 | */ | |
494 | if (!rinfo->has_CRTC2) { | |
495 | #ifdef CONFIG_PPC_OF | |
496 | if (rinfo->mon1_type == MT_NONE) | |
497 | rinfo->mon1_type = radeon_probe_OF_head(rinfo, 0, | |
498 | &rinfo->mon1_EDID); | |
499 | #endif /* CONFIG_PPC_OF */ | |
500 | #ifdef CONFIG_FB_RADEON_I2C | |
501 | if (rinfo->mon1_type == MT_NONE) | |
502 | rinfo->mon1_type = | |
503 | radeon_probe_i2c_connector(rinfo, ddc_dvi, | |
504 | &rinfo->mon1_EDID); | |
505 | if (rinfo->mon1_type == MT_NONE) | |
506 | rinfo->mon1_type = | |
507 | radeon_probe_i2c_connector(rinfo, ddc_vga, | |
508 | &rinfo->mon1_EDID); | |
509 | if (rinfo->mon1_type == MT_NONE) | |
510 | rinfo->mon1_type = | |
511 | radeon_probe_i2c_connector(rinfo, ddc_crt2, | |
512 | &rinfo->mon1_EDID); | |
513 | #endif /* CONFIG_FB_RADEON_I2C */ | |
514 | if (rinfo->mon1_type == MT_NONE) | |
515 | rinfo->mon1_type = MT_CRT; | |
516 | goto bail; | |
517 | } | |
518 | ||
519 | /* | |
520 | * Check for cards with reversed DACs or TMDS controllers using BIOS | |
521 | */ | |
522 | if (rinfo->bios_seg && | |
523 | (tmp = BIOS_IN16(rinfo->fp_bios_start + 0x50))) { | |
524 | for (i = 1; i < 4; i++) { | |
525 | unsigned int tmp0; | |
526 | ||
527 | if (!BIOS_IN8(tmp + i*2) && i > 1) | |
528 | break; | |
529 | tmp0 = BIOS_IN16(tmp + i*2); | |
530 | if ((!(tmp0 & 0x01)) && (((tmp0 >> 8) & 0x0f) == ddc_dvi)) { | |
531 | rinfo->reversed_DAC = 1; | |
532 | printk(KERN_INFO "radeonfb: Reversed DACs detected\n"); | |
533 | } | |
534 | if ((((tmp0 >> 8) & 0x0f) == ddc_dvi) && ((tmp0 >> 4) & 0x01)) { | |
535 | rinfo->reversed_TMDS = 1; | |
536 | printk(KERN_INFO "radeonfb: Reversed TMDS detected\n"); | |
537 | } | |
538 | } | |
539 | } | |
540 | ||
541 | /* | |
542 | * Probe primary head (DVI or laptop internal panel) | |
543 | */ | |
544 | #ifdef CONFIG_PPC_OF | |
545 | if (rinfo->mon1_type == MT_NONE) | |
546 | rinfo->mon1_type = radeon_probe_OF_head(rinfo, 0, | |
547 | &rinfo->mon1_EDID); | |
548 | #endif /* CONFIG_PPC_OF */ | |
549 | #ifdef CONFIG_FB_RADEON_I2C | |
550 | if (rinfo->mon1_type == MT_NONE) | |
551 | rinfo->mon1_type = radeon_probe_i2c_connector(rinfo, ddc_dvi, | |
552 | &rinfo->mon1_EDID); | |
553 | if (rinfo->mon1_type == MT_NONE) { | |
554 | rinfo->mon1_type = radeon_probe_i2c_connector(rinfo, ddc_crt2, | |
555 | &rinfo->mon1_EDID); | |
556 | if (rinfo->mon1_type != MT_NONE) | |
557 | ddc_crt2_used = 1; | |
558 | } | |
559 | #endif /* CONFIG_FB_RADEON_I2C */ | |
560 | if (rinfo->mon1_type == MT_NONE && rinfo->is_mobility && | |
561 | ((rinfo->bios_seg && (INREG(BIOS_4_SCRATCH) & 4)) | |
562 | || (INREG(LVDS_GEN_CNTL) & LVDS_ON))) { | |
563 | rinfo->mon1_type = MT_LCD; | |
564 | printk("Non-DDC laptop panel detected\n"); | |
565 | } | |
566 | if (rinfo->mon1_type == MT_NONE) | |
567 | rinfo->mon1_type = radeon_crt_is_connected(rinfo, rinfo->reversed_DAC); | |
568 | ||
569 | /* | |
570 | * Probe secondary head (mostly VGA, can be DVI) | |
571 | */ | |
572 | #ifdef CONFIG_PPC_OF | |
573 | if (rinfo->mon2_type == MT_NONE) | |
574 | rinfo->mon2_type = radeon_probe_OF_head(rinfo, 1, | |
575 | &rinfo->mon2_EDID); | |
576 | #endif /* CONFIG_PPC_OF */ | |
577 | #ifdef CONFIG_FB_RADEON_I2C | |
578 | if (rinfo->mon2_type == MT_NONE) | |
579 | rinfo->mon2_type = radeon_probe_i2c_connector(rinfo, ddc_vga, | |
580 | &rinfo->mon2_EDID); | |
581 | if (rinfo->mon2_type == MT_NONE && !ddc_crt2_used) | |
582 | rinfo->mon2_type = radeon_probe_i2c_connector(rinfo, ddc_crt2, | |
583 | &rinfo->mon2_EDID); | |
584 | #endif /* CONFIG_FB_RADEON_I2C */ | |
585 | if (rinfo->mon2_type == MT_NONE) | |
586 | rinfo->mon2_type = radeon_crt_is_connected(rinfo, !rinfo->reversed_DAC); | |
587 | ||
588 | /* | |
589 | * If we only detected port 2, we swap them, if none detected, | |
590 | * assume CRT (maybe fallback to old BIOS_SCRATCH stuff ? or look | |
591 | * at FP registers ?) | |
592 | */ | |
593 | if (rinfo->mon1_type == MT_NONE) { | |
594 | if (rinfo->mon2_type != MT_NONE) { | |
595 | rinfo->mon1_type = rinfo->mon2_type; | |
596 | rinfo->mon1_EDID = rinfo->mon2_EDID; | |
597 | } else | |
598 | rinfo->mon1_type = MT_CRT; | |
599 | rinfo->mon2_type = MT_NONE; | |
600 | rinfo->mon2_EDID = NULL; | |
601 | } | |
602 | ||
603 | /* | |
604 | * Deal with reversed TMDS | |
605 | */ | |
606 | if (rinfo->reversed_TMDS) { | |
607 | /* Always keep internal TMDS as primary head */ | |
608 | if (rinfo->mon1_type == MT_DFP || rinfo->mon2_type == MT_DFP) { | |
609 | int tmp_type = rinfo->mon1_type; | |
610 | u8 *tmp_EDID = rinfo->mon1_EDID; | |
611 | rinfo->mon1_type = rinfo->mon2_type; | |
612 | rinfo->mon1_EDID = rinfo->mon2_EDID; | |
613 | rinfo->mon2_type = tmp_type; | |
614 | rinfo->mon2_EDID = tmp_EDID; | |
615 | if (rinfo->mon1_type == MT_CRT || rinfo->mon2_type == MT_CRT) | |
616 | rinfo->reversed_DAC ^= 1; | |
617 | } | |
618 | } | |
619 | } | |
620 | if (ignore_edid) { | |
621 | kfree(rinfo->mon1_EDID); | |
622 | rinfo->mon1_EDID = NULL; | |
623 | kfree(rinfo->mon2_EDID); | |
624 | rinfo->mon2_EDID = NULL; | |
625 | } | |
626 | ||
627 | bail: | |
628 | printk(KERN_INFO "radeonfb: Monitor 1 type %s found\n", | |
629 | radeon_get_mon_name(rinfo->mon1_type)); | |
630 | if (rinfo->mon1_EDID) | |
631 | printk(KERN_INFO "radeonfb: EDID probed\n"); | |
632 | if (!rinfo->has_CRTC2) | |
633 | return; | |
634 | printk(KERN_INFO "radeonfb: Monitor 2 type %s found\n", | |
635 | radeon_get_mon_name(rinfo->mon2_type)); | |
636 | if (rinfo->mon2_EDID) | |
637 | printk(KERN_INFO "radeonfb: EDID probed\n"); | |
638 | } | |
639 | ||
640 | ||
641 | /* | |
642 | * This functions applyes any arch/model/machine specific fixups | |
643 | * to the panel info. It may eventually alter EDID block as | |
644 | * well or whatever is specific to a given model and not probed | |
645 | * properly by the default code | |
646 | */ | |
647 | static void radeon_fixup_panel_info(struct radeonfb_info *rinfo) | |
648 | { | |
649 | #ifdef CONFIG_PPC_OF | |
650 | /* | |
651 | * LCD Flat panels should use fixed dividers, we enfore that on | |
652 | * PPC only for now... | |
653 | */ | |
654 | if (!rinfo->panel_info.use_bios_dividers && rinfo->mon1_type == MT_LCD | |
655 | && rinfo->is_mobility) { | |
656 | int ppll_div_sel; | |
657 | u32 ppll_divn; | |
658 | ppll_div_sel = INREG8(CLOCK_CNTL_INDEX + 1) & 0x3; | |
659 | radeon_pll_errata_after_index(rinfo); | |
660 | ppll_divn = INPLL(PPLL_DIV_0 + ppll_div_sel); | |
661 | rinfo->panel_info.ref_divider = rinfo->pll.ref_div; | |
662 | rinfo->panel_info.fbk_divider = ppll_divn & 0x7ff; | |
663 | rinfo->panel_info.post_divider = (ppll_divn >> 16) & 0x7; | |
664 | rinfo->panel_info.use_bios_dividers = 1; | |
665 | ||
666 | printk(KERN_DEBUG "radeonfb: Using Firmware dividers 0x%08x " | |
667 | "from PPLL %d\n", | |
668 | rinfo->panel_info.fbk_divider | | |
669 | (rinfo->panel_info.post_divider << 16), | |
670 | ppll_div_sel); | |
671 | } | |
672 | #endif /* CONFIG_PPC_OF */ | |
673 | } | |
674 | ||
675 | ||
676 | /* | |
677 | * Fill up panel infos from a mode definition, either returned by the EDID | |
678 | * or from the default mode when we can't do any better | |
679 | */ | |
680 | static void radeon_var_to_panel_info(struct radeonfb_info *rinfo, struct fb_var_screeninfo *var) | |
681 | { | |
682 | rinfo->panel_info.xres = var->xres; | |
683 | rinfo->panel_info.yres = var->yres; | |
684 | rinfo->panel_info.clock = 100000000 / var->pixclock; | |
685 | rinfo->panel_info.hOver_plus = var->right_margin; | |
686 | rinfo->panel_info.hSync_width = var->hsync_len; | |
687 | rinfo->panel_info.hblank = var->left_margin + | |
688 | (var->right_margin + var->hsync_len); | |
689 | rinfo->panel_info.vOver_plus = var->lower_margin; | |
690 | rinfo->panel_info.vSync_width = var->vsync_len; | |
691 | rinfo->panel_info.vblank = var->upper_margin + | |
692 | (var->lower_margin + var->vsync_len); | |
693 | rinfo->panel_info.hAct_high = | |
694 | (var->sync & FB_SYNC_HOR_HIGH_ACT) != 0; | |
695 | rinfo->panel_info.vAct_high = | |
696 | (var->sync & FB_SYNC_VERT_HIGH_ACT) != 0; | |
697 | rinfo->panel_info.valid = 1; | |
698 | /* We use a default of 200ms for the panel power delay, | |
699 | * I need to have a real schedule() instead of mdelay's in the panel code. | |
700 | * we might be possible to figure out a better power delay either from | |
701 | * MacOS OF tree or from the EDID block (proprietary extensions ?) | |
702 | */ | |
703 | rinfo->panel_info.pwr_delay = 200; | |
704 | } | |
705 | ||
706 | static void radeon_videomode_to_var(struct fb_var_screeninfo *var, | |
707 | const struct fb_videomode *mode) | |
708 | { | |
709 | var->xres = mode->xres; | |
710 | var->yres = mode->yres; | |
711 | var->xres_virtual = mode->xres; | |
712 | var->yres_virtual = mode->yres; | |
713 | var->xoffset = 0; | |
714 | var->yoffset = 0; | |
715 | var->pixclock = mode->pixclock; | |
716 | var->left_margin = mode->left_margin; | |
717 | var->right_margin = mode->right_margin; | |
718 | var->upper_margin = mode->upper_margin; | |
719 | var->lower_margin = mode->lower_margin; | |
720 | var->hsync_len = mode->hsync_len; | |
721 | var->vsync_len = mode->vsync_len; | |
722 | var->sync = mode->sync; | |
723 | var->vmode = mode->vmode; | |
724 | } | |
725 | ||
726 | /* | |
727 | * Build the modedb for head 1 (head 2 will come later), check panel infos | |
728 | * from either BIOS or EDID, and pick up the default mode | |
729 | */ | |
730 | void __devinit radeon_check_modes(struct radeonfb_info *rinfo, const char *mode_option) | |
731 | { | |
732 | struct fb_info * info = rinfo->info; | |
733 | int has_default_mode = 0; | |
734 | ||
735 | /* | |
736 | * Fill default var first | |
737 | */ | |
738 | info->var = radeonfb_default_var; | |
739 | INIT_LIST_HEAD(&info->modelist); | |
740 | ||
741 | /* | |
742 | * First check out what BIOS has to say | |
743 | */ | |
744 | if (rinfo->mon1_type == MT_LCD) | |
745 | radeon_get_panel_info_BIOS(rinfo); | |
746 | ||
747 | /* | |
748 | * Parse EDID detailed timings and deduce panel infos if any. Right now | |
749 | * we only deal with first entry returned by parse_EDID, we may do better | |
750 | * some day... | |
751 | */ | |
752 | if (!rinfo->panel_info.use_bios_dividers && rinfo->mon1_type != MT_CRT | |
753 | && rinfo->mon1_EDID) { | |
754 | struct fb_var_screeninfo var; | |
755 | RTRACE("Parsing EDID data for panel info\n"); | |
756 | if (fb_parse_edid(rinfo->mon1_EDID, &var) == 0) { | |
757 | if (var.xres >= rinfo->panel_info.xres && | |
758 | var.yres >= rinfo->panel_info.yres) | |
759 | radeon_var_to_panel_info(rinfo, &var); | |
760 | } | |
761 | } | |
762 | ||
763 | /* | |
764 | * Do any additional platform/arch fixups to the panel infos | |
765 | */ | |
766 | radeon_fixup_panel_info(rinfo); | |
767 | ||
768 | /* | |
769 | * If we have some valid panel infos, we setup the default mode based on | |
770 | * those | |
771 | */ | |
772 | if (rinfo->mon1_type != MT_CRT && rinfo->panel_info.valid) { | |
773 | struct fb_var_screeninfo *var = &info->var; | |
774 | ||
775 | RTRACE("Setting up default mode based on panel info\n"); | |
776 | var->xres = rinfo->panel_info.xres; | |
777 | var->yres = rinfo->panel_info.yres; | |
778 | var->xres_virtual = rinfo->panel_info.xres; | |
779 | var->yres_virtual = rinfo->panel_info.yres; | |
780 | var->xoffset = var->yoffset = 0; | |
781 | var->bits_per_pixel = 8; | |
782 | var->pixclock = 100000000 / rinfo->panel_info.clock; | |
783 | var->left_margin = (rinfo->panel_info.hblank - rinfo->panel_info.hOver_plus | |
784 | - rinfo->panel_info.hSync_width); | |
785 | var->right_margin = rinfo->panel_info.hOver_plus; | |
786 | var->upper_margin = (rinfo->panel_info.vblank - rinfo->panel_info.vOver_plus | |
787 | - rinfo->panel_info.vSync_width); | |
788 | var->lower_margin = rinfo->panel_info.vOver_plus; | |
789 | var->hsync_len = rinfo->panel_info.hSync_width; | |
790 | var->vsync_len = rinfo->panel_info.vSync_width; | |
791 | var->sync = 0; | |
792 | if (rinfo->panel_info.hAct_high) | |
793 | var->sync |= FB_SYNC_HOR_HIGH_ACT; | |
794 | if (rinfo->panel_info.vAct_high) | |
795 | var->sync |= FB_SYNC_VERT_HIGH_ACT; | |
796 | var->vmode = 0; | |
797 | has_default_mode = 1; | |
798 | } | |
799 | ||
800 | /* | |
801 | * Now build modedb from EDID | |
802 | */ | |
803 | if (rinfo->mon1_EDID) { | |
804 | fb_edid_to_monspecs(rinfo->mon1_EDID, &info->monspecs); | |
805 | fb_videomode_to_modelist(info->monspecs.modedb, | |
806 | info->monspecs.modedb_len, | |
807 | &info->modelist); | |
808 | rinfo->mon1_modedb = info->monspecs.modedb; | |
809 | rinfo->mon1_dbsize = info->monspecs.modedb_len; | |
810 | } | |
811 | ||
812 | ||
813 | /* | |
814 | * Finally, if we don't have panel infos we need to figure some (or | |
815 | * we try to read it from card), we try to pick a default mode | |
816 | * and create some panel infos. Whatever... | |
817 | */ | |
818 | if (rinfo->mon1_type != MT_CRT && !rinfo->panel_info.valid) { | |
819 | struct fb_videomode *modedb; | |
820 | int dbsize; | |
821 | char modename[32]; | |
822 | ||
823 | RTRACE("Guessing panel info...\n"); | |
824 | if (rinfo->panel_info.xres == 0 || rinfo->panel_info.yres == 0) { | |
825 | u32 tmp = INREG(FP_HORZ_STRETCH) & HORZ_PANEL_SIZE; | |
826 | rinfo->panel_info.xres = ((tmp >> HORZ_PANEL_SHIFT) + 1) * 8; | |
827 | tmp = INREG(FP_VERT_STRETCH) & VERT_PANEL_SIZE; | |
828 | rinfo->panel_info.yres = (tmp >> VERT_PANEL_SHIFT) + 1; | |
829 | } | |
830 | if (rinfo->panel_info.xres == 0 || rinfo->panel_info.yres == 0) { | |
831 | printk(KERN_WARNING "radeonfb: Can't find panel size, going back to CRT\n"); | |
832 | rinfo->mon1_type = MT_CRT; | |
833 | goto pickup_default; | |
834 | } | |
835 | printk(KERN_WARNING "radeonfb: Assuming panel size %dx%d\n", | |
836 | rinfo->panel_info.xres, rinfo->panel_info.yres); | |
837 | modedb = rinfo->mon1_modedb; | |
838 | dbsize = rinfo->mon1_dbsize; | |
839 | snprintf(modename, 31, "%dx%d", rinfo->panel_info.xres, rinfo->panel_info.yres); | |
840 | if (fb_find_mode(&info->var, info, modename, | |
841 | modedb, dbsize, NULL, 8) == 0) { | |
842 | printk(KERN_WARNING "radeonfb: Can't find mode for panel size, going back to CRT\n"); | |
843 | rinfo->mon1_type = MT_CRT; | |
844 | goto pickup_default; | |
845 | } | |
846 | has_default_mode = 1; | |
847 | radeon_var_to_panel_info(rinfo, &info->var); | |
848 | } | |
849 | ||
850 | pickup_default: | |
851 | /* | |
852 | * Apply passed-in mode option if any | |
853 | */ | |
854 | if (mode_option) { | |
855 | if (fb_find_mode(&info->var, info, mode_option, | |
856 | info->monspecs.modedb, | |
857 | info->monspecs.modedb_len, NULL, 8) != 0) | |
858 | has_default_mode = 1; | |
859 | } | |
860 | ||
861 | /* | |
862 | * Still no mode, let's pick up a default from the db | |
863 | */ | |
864 | if (!has_default_mode && info->monspecs.modedb != NULL) { | |
865 | struct fb_monspecs *specs = &info->monspecs; | |
866 | struct fb_videomode *modedb = NULL; | |
867 | ||
868 | /* get preferred timing */ | |
869 | if (specs->misc & FB_MISC_1ST_DETAIL) { | |
870 | int i; | |
871 | ||
872 | for (i = 0; i < specs->modedb_len; i++) { | |
873 | if (specs->modedb[i].flag & FB_MODE_IS_FIRST) { | |
874 | modedb = &specs->modedb[i]; | |
875 | break; | |
876 | } | |
877 | } | |
878 | } else { | |
879 | /* otherwise, get first mode in database */ | |
880 | modedb = &specs->modedb[0]; | |
881 | } | |
882 | if (modedb != NULL) { | |
883 | info->var.bits_per_pixel = 8; | |
884 | radeon_videomode_to_var(&info->var, modedb); | |
885 | has_default_mode = 1; | |
886 | } | |
887 | } | |
888 | if (1) { | |
889 | struct fb_videomode mode; | |
890 | /* Make sure that whatever mode got selected is actually in the | |
891 | * modelist or the kernel may die | |
892 | */ | |
893 | fb_var_to_videomode(&mode, &info->var); | |
894 | fb_add_videomode(&mode, &info->modelist); | |
895 | } | |
896 | } | |
897 | ||
898 | /* | |
899 | * The code below is used to pick up a mode in check_var and | |
900 | * set_var. It should be made generic | |
901 | */ | |
902 | ||
903 | /* | |
904 | * This is used when looking for modes. We assign a "distance" value | |
905 | * to a mode in the modedb depending how "close" it is from what we | |
906 | * are looking for. | |
907 | * Currently, we don't compare that much, we could do better but | |
908 | * the current fbcon doesn't quite mind ;) | |
909 | */ | |
910 | static int radeon_compare_modes(const struct fb_var_screeninfo *var, | |
911 | const struct fb_videomode *mode) | |
912 | { | |
913 | int distance = 0; | |
914 | ||
915 | distance = mode->yres - var->yres; | |
916 | distance += (mode->xres - var->xres)/2; | |
917 | return distance; | |
918 | } | |
919 | ||
920 | /* | |
921 | * This function is called by check_var, it gets the passed in mode parameter, and | |
922 | * outputs a valid mode matching the passed-in one as closely as possible. | |
923 | * We need something better ultimately. Things like fbcon basically pass us out | |
924 | * current mode with xres/yres hacked, while things like XFree will actually | |
925 | * produce a full timing that we should respect as much as possible. | |
926 | * | |
927 | * This is why I added the FB_ACTIVATE_FIND that is used by fbcon. Without this, | |
928 | * we do a simple spec match, that's all. With it, we actually look for a mode in | |
929 | * either our monitor modedb or the vesa one if none | |
930 | * | |
931 | */ | |
932 | int radeon_match_mode(struct radeonfb_info *rinfo, | |
933 | struct fb_var_screeninfo *dest, | |
934 | const struct fb_var_screeninfo *src) | |
935 | { | |
936 | const struct fb_videomode *db = vesa_modes; | |
937 | int i, dbsize = 34; | |
938 | int has_rmx, native_db = 0; | |
939 | int distance = INT_MAX; | |
940 | const struct fb_videomode *candidate = NULL; | |
941 | ||
942 | /* Start with a copy of the requested mode */ | |
943 | memcpy(dest, src, sizeof(struct fb_var_screeninfo)); | |
944 | ||
945 | /* Check if we have a modedb built from EDID */ | |
946 | if (rinfo->mon1_modedb) { | |
947 | db = rinfo->mon1_modedb; | |
948 | dbsize = rinfo->mon1_dbsize; | |
949 | native_db = 1; | |
950 | } | |
951 | ||
952 | /* Check if we have a scaler allowing any fancy mode */ | |
953 | has_rmx = rinfo->mon1_type == MT_LCD || rinfo->mon1_type == MT_DFP; | |
954 | ||
955 | /* If we have a scaler and are passed FB_ACTIVATE_TEST or | |
956 | * FB_ACTIVATE_NOW, just do basic checking and return if the | |
957 | * mode match | |
958 | */ | |
959 | if ((src->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST || | |
960 | (src->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) { | |
961 | /* We don't have an RMX, validate timings. If we don't have | |
962 | * monspecs, we should be paranoid and not let use go above | |
963 | * 640x480-60, but I assume userland knows what it's doing here | |
964 | * (though I may be proven wrong...) | |
965 | */ | |
966 | if (has_rmx == 0 && rinfo->mon1_modedb) | |
967 | if (fb_validate_mode((struct fb_var_screeninfo *)src, rinfo->info)) | |
968 | return -EINVAL; | |
969 | return 0; | |
970 | } | |
971 | ||
972 | /* Now look for a mode in the database */ | |
973 | while (db) { | |
974 | for (i = 0; i < dbsize; i++) { | |
975 | int d; | |
976 | ||
977 | if (db[i].yres < src->yres) | |
978 | continue; | |
979 | if (db[i].xres < src->xres) | |
980 | continue; | |
981 | d = radeon_compare_modes(src, &db[i]); | |
982 | /* If the new mode is at least as good as the previous one, | |
983 | * then it's our new candidate | |
984 | */ | |
985 | if (d < distance) { | |
986 | candidate = &db[i]; | |
987 | distance = d; | |
988 | } | |
989 | } | |
990 | db = NULL; | |
991 | /* If we have a scaler, we allow any mode from the database */ | |
992 | if (native_db && has_rmx) { | |
993 | db = vesa_modes; | |
994 | dbsize = 34; | |
995 | native_db = 0; | |
996 | } | |
997 | } | |
998 | ||
999 | /* If we have found a match, return it */ | |
1000 | if (candidate != NULL) { | |
1001 | radeon_videomode_to_var(dest, candidate); | |
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | /* If we haven't and don't have a scaler, fail */ | |
1006 | if (!has_rmx) | |
1007 | return -EINVAL; | |
1008 | ||
1009 | return 0; | |
1010 | } |