xref: /haiku/src/add-ons/accelerants/matrox/engine/mga_info.c (revision 1fc340e5b7ebca45d4cf9b480e3a2ad9967db2ec)
1 /* Read initialisation information from card */
2 /* some bits are hacks, where PINS is not known */
3 /* Authors:
4    Mark Watson 2/2000,
5    Rudolf Cornelissen 10/2002-5/2006
6 */
7 
8 #define MODULE_BIT 0x00002000
9 
10 #include "mga_std.h"
11 
12 /* Parse the BIOS PINS structure if there */
parse_pins()13 status_t parse_pins ()
14 {
15 	uint8 pins_len = 0;
16 	uint8 *rom;
17 	uint8 *pins;
18 	uint8 chksum = 0;
19 	int i;
20 	status_t result = B_ERROR;
21 
22 	/* preset PINS read status to failed */
23 	si->ps.pins_status = B_ERROR;
24 
25 	/* check the validity of PINS */
26 	LOG(2,("INFO: Reading PINS info\n"));
27 	rom = (uint8 *) si->rom_mirror;
28 	/* check BIOS signature */
29 	if (rom[0]!=0x55 || rom[1]!=0xaa)
30 	{
31 		LOG(8,("INFO: BIOS signature not found\n"));
32 		return B_ERROR;
33 	}
34 	LOG(2,("INFO: BIOS signature $AA55 found OK\n"));
35 	/* check for a valid PINS struct adress */
36 	pins = rom + (rom[0x7FFC]|(rom[0x7FFD]<<8));
37 	if ((pins - rom) > 0x7F80)
38 	{
39 		LOG(8,("INFO: invalid PINS adress\n"));
40 		return B_ERROR;
41 	}
42 	/* checkout new PINS struct version if there */
43 	if ((pins[0] == 0x2E) && (pins[1] == 0x41))
44 	{
45 		pins_len = pins[2];
46 		if (pins_len < 3 || pins_len > 128)
47 		{
48 			LOG(8,("INFO: invalid PINS size\n"));
49 			return B_ERROR;
50 		}
51 
52 		/* calculate PINS checksum */
53 		for (i = 0; i < pins_len; i++)
54 		{
55 			chksum += pins[i];
56 		}
57 		if (chksum)
58 		{
59 			LOG(8,("INFO: PINS checksum error\n"));
60 			return B_ERROR;
61 		}
62 		LOG(2,("INFO: new PINS, version %u.%u, length %u\n", pins[5], pins[4], pins[2]));
63 		/* fill out the si->ps struct if possible */
64 		switch (pins[5])
65 		{
66 			case 2:
67 				result = pins2_read(pins, pins_len);
68 				break;
69 			case 3:
70 				result = pins3_read(pins, pins_len);
71 				break;
72 			case 4:
73 				result = pins4_read(pins, pins_len);
74 				break;
75 			case 5:
76 				result = pins5_read(pins, pins_len);
77 				break;
78 			default:
79 				LOG(8,("INFO: unknown PINS version\n"));
80 				return B_ERROR;
81 				break;
82 		}
83 	}
84 	/* checkout old 64 byte PINS struct version if there */
85 	else if ((pins[0] == 0x40) && (pins[1] == 0x00))
86 	{
87 		pins_len = 0x40;
88 		/* this PINS version has no checksum */
89 
90 		LOG(2,("INFO: old PINS found\n"));
91 		/* fill out the si->ps struct */
92 		result = pins1_read(pins, pins_len);
93 	}
94 	/* no valid PINS signature found */
95 	else
96 	{
97 		LOG(8,("INFO: no PINS signature found\n"));
98 		return B_ERROR;
99 	}
100 	/* check PINS read result */
101 	if (result == B_ERROR)
102 	{
103 		LOG(8,("INFO: PINS read/decode error\n"));
104 		return B_ERROR;
105 	}
106 	/* PINS scan succeeded */
107 	si->ps.pins_status = B_OK;
108 	LOG(2,("INFO: PINS scan completed succesfully\n"));
109 	return B_OK;
110 }
111 
pins1_read(uint8 * pins,uint8 length)112 status_t pins1_read(uint8 *pins, uint8 length)
113 {
114 	if (length != 64)
115 	{
116 		LOG(8,("INFO: wrong PINS length, expected 64, got %d\n", length));
117 		return B_ERROR;
118 	}
119 
120 //reset all for test:
121 //float:
122 	si->ps.f_ref = 0;
123 //uint32:
124 	si->ps.max_system_vco = 0;
125 	si->ps.min_system_vco = 0;
126 	si->ps.min_pixel_vco = 0;
127 	si->ps.min_video_vco = 0;
128 	si->ps.std_engine_clock_dh = 0;
129 	si->ps.max_dac1_clock_32 = 0;
130 	si->ps.max_dac1_clock_32dh = 0;
131 	si->ps.memory_size = 0;
132 	si->ps.mctlwtst_reg = 0;
133 	si->ps.memrdbk_reg = 0;
134 	si->ps.option2_reg = 0;
135 	si->ps.option3_reg = 0;
136 	si->ps.option4_reg = 0;
137 //uint8:
138 	si->ps.v3_option2_reg = 0;
139 	si->ps.v3_clk_div = 0;
140 	si->ps.v3_mem_type = 0;
141 //uint16:
142 	si->ps.v5_mem_type = 0;
143 //bools:
144 	si->ps.secondary_head = false;
145 	si->ps.tvout = false;
146 	si->ps.primary_dvi = false;
147 	si->ps.secondary_dvi = false;
148 	si->ps.sdram = true;
149 
150 //experimental: checkout!
151 	si->ps.max_dac1_clock_32 = pins[22];//ramdac
152 	si->ps.max_pixel_vco = (pins[25] << 8) | pins[24];//PCLK
153 	si->ps.std_engine_clock = (pins[29] << 8) | pins[28];
154 	if ((uint32)((pins[31] << 8) | pins[30]) < si->ps.std_engine_clock)
155 		si->ps.std_engine_clock = (pins[31] << 8) | pins[30];
156 	if ((uint32)((pins[33] << 8) | pins[32]) < si->ps.std_engine_clock)
157 		si->ps.std_engine_clock = (pins[33] << 8) | pins[32];
158 
159 //temp. test to see some vals..
160 	si->ps.max_video_vco = (pins[27] << 8) | pins[26];//LCLK
161 	//feature flags:
162 	si->ps.option_reg = (pins[53] << 24) | (pins[52] << 16) | (pins[51] << 8) | pins [50];
163 
164 	si->ps.max_dac2_clock = (pins[35] << 8) | pins[34];//clkmod
165 	si->ps.max_dac2_clock_8 = (pins[37] << 8) | pins[36];//testclk
166 	si->ps.max_dac2_clock_16 = (pins[39] << 8) | pins[38];//vgafreq1
167 	si->ps.max_dac2_clock_24 = (pins[41] << 8) | pins[40];//vgafreq2
168 	si->ps.max_dac2_clock_32 = (pins[55] << 8) | pins[54];//vga clock
169 	si->ps.max_dac2_clock_32dh = pins[58];//vid ctrl
170 
171 	si->ps.max_dac1_clock = (pins[29] << 8) | pins[28];//clkbase
172 	si->ps.max_dac1_clock_8 = (pins[31] << 8) | pins[30];//4mb
173 	si->ps.max_dac1_clock_16 = (pins[33] << 8) | pins[32];//8mb
174 	si->ps.max_dac1_clock_24 = pins[23];//ramdac type
175 
176 //test! Don't actually use the reported settings for now...
177 	return B_OK;
178 }
179 
pins2_read(uint8 * pins,uint8 length)180 status_t pins2_read(uint8 *pins, uint8 length)
181 {
182 	if (length != 64)
183 	{
184 		LOG(8,("INFO: wrong PINS length, expected 64, got %d\n", length));
185 		return B_ERROR;
186 	}
187 
188 	LOG(2,("INFO: PINS version 2 details not yet known\n"));
189 	return B_ERROR;
190 }
191 
192 /* pins v3 is used by G100 and G200. */
pins3_read(uint8 * pins,uint8 length)193 status_t pins3_read(uint8 *pins, uint8 length)
194 {
195 	/* used to calculate RAM refreshrate */
196 	float mclk_period;
197 	uint32 rfhcnt;
198 
199 	if (length != 64)
200 	{
201 		LOG(8,("INFO: wrong PINS length, expected 64, got %d\n", length));
202 		return B_ERROR;
203 	}
204 
205 	/* fill out the shared info si->ps struct */
206 	si->ps.max_pixel_vco = pins[36] + 100;
207 
208 	si->ps.max_dac1_clock_8 = pins[37] + 100;
209 	si->ps.max_dac1_clock_16 = pins[38] + 100;
210 	si->ps.max_dac1_clock_24 = pins[39] + 100;
211 	si->ps.max_dac1_clock_32 = pins[40] + 100;
212 
213 	si->ps.std_engine_clock = pins[44];
214 	if (pins [45] < si->ps.std_engine_clock) si->ps.std_engine_clock = pins[45];
215 	if (pins [46] < si->ps.std_engine_clock) si->ps.std_engine_clock = pins[46];
216 	if (pins [47] < si->ps.std_engine_clock) si->ps.std_engine_clock = pins[47];
217 	if ((si->ps.card_type == G200) && (pins[58] & 0x04))
218 	{
219 		/* G200 can work without divisor */
220 		si->ps.std_engine_clock *= 1;
221 	}
222 	else
223 	{
224 		if (pins[52] & 0x01)
225 			si->ps.std_engine_clock *= 3;
226 		else
227 			si->ps.std_engine_clock *= 2;
228 	}
229 
230 	if (pins[52] & 0x20) si->ps.f_ref = 14.31818;
231 	else si->ps.f_ref = 27.00000;
232 
233 	/* G100 and G200 support 2-16Mb RAM */
234 	si->ps.memory_size = 2 << ((pins[55] & 0xc0) >> 6);
235 	/* more memory specifics */
236 	si->ps.mctlwtst_reg = (pins[51] << 24) | (pins[50] << 16) | (pins[49] << 8) | pins [48];
237 	si->ps.memrdbk_reg =
238 		(pins[56] & 0x0f) | ((pins[56] & 0xf0) << 1) | ((pins[57] & 0x03) << 22) | ((pins[57] & 0xf0) << 21);
239 	/* Mark did this as one step in the above stuff, which must be wrong:
240 	((pins[p3_memrd+1]&0x03)>>2)<<16; //FIXME - ROR */
241 
242 	si->ps.v3_clk_div = pins[52];
243 	si->ps.v3_mem_type = pins[54];
244 	si->ps.v3_option2_reg = pins[58];
245 
246 	/* for cards using this version of PINS both functions are in maven */
247 	si->ps.tvout = !(pins[59] & 0x01);
248 	/* beware of TVout add-on boards: test for the MAVEN ourself! */
249 	if (i2c_maven_probe() == B_OK)
250 	{
251 		si->ps.tvout = true;
252 	}
253 
254 	/* G200 and earlier cards are always singlehead cards */
255 	si->ps.secondary_head = false;
256 	if (si->ps.card_type >= G400) si->ps.secondary_head = !(pins[59] & 0x01);
257 
258 	/* setup via gathered info from pins */
259 	si->ps.option_reg = 0;
260 	/* calculate refresh timer info-bits for 15uS interval (or shorter). See G100/G200 specs */
261 	/* calculate std memory clock period (nS) */
262 	if ((si->ps.card_type == G200) && (pins[58] & 0x08))
263 	{
264 		/* G200 can work without Mclk divisor */
265 		mclk_period = 1000.0 / si->ps.std_engine_clock;
266 	}
267 	else
268 	{
269 		if (pins[52] & 0x02)
270 			/* this factor is only used on G200, not on G100 */
271 			mclk_period = 3000.0 / si->ps.std_engine_clock;
272 		else
273 			mclk_period = 2000.0 / si->ps.std_engine_clock;
274 	}
275 	/* calculate needed setting, 'round-down' result! */
276 	rfhcnt = (uint32)(((15000 / mclk_period) - 1) / 64);
277 	/* check for register limit */
278 	if (rfhcnt > 0x3f) rfhcnt = 0x3f;
279 	/* add to option register */
280 	si->ps.option_reg |= (rfhcnt << 15);
281 	/* the rest of the OPTION info for pins v3 comes via 'v3_clk_div' and 'v3_mem_type'. */
282 
283 	/* assuming the only possible panellink will be on the first head */
284 	si->ps.primary_dvi = !(pins[59] & 0x40);
285 	/* logical consequence of the above */
286 	si->ps.secondary_dvi = false;
287 
288 	/* indirect logical consequences, see also G100 and G200 specs */
289 	si->ps.max_system_vco = si->ps.max_pixel_vco;
290 	si->ps.max_dac1_clock = si->ps.max_dac1_clock_8;
291 	si->ps.max_dac1_clock_32dh = si->ps.max_dac1_clock_32;
292 	si->ps.std_engine_clock_dh = si->ps.std_engine_clock;
293 	si->ps.sdram = (si->ps.v3_clk_div & 0x10);
294 	/* not supported: */
295 	si->ps.max_dac2_clock_8 = 0;
296 	si->ps.max_dac2_clock_24 = 0;
297 	/* see G100, G200 and G400 specs */
298 	si->ps.min_system_vco = 50;
299 	si->ps.min_pixel_vco = 50;
300 	/* fixme: ehhh, no specs: confirm/tune these by testing?! */
301 	si->ps.max_video_vco = si->ps.max_pixel_vco;
302 	si->ps.min_video_vco = 50;
303 	/* assuming G100, G200 MAVEN has same specs as G400 MAVEN */
304 	si->ps.max_dac2_clock = 136;
305 	si->ps.max_dac2_clock_16 = 136;
306 	si->ps.max_dac2_clock_32dh = 136;
307 	si->ps.max_dac2_clock_32 = 136;
308 
309 	/* not used here: */
310 	si->ps.option2_reg = 0;
311 	si->ps.option3_reg = 0;
312 	si->ps.option4_reg = 0;
313 	si->ps.v5_mem_type = 0;
314 	return B_OK;
315 }
316 
317 /* pins v4 is used by G400 and G400MAX */
pins4_read(uint8 * pins,uint8 length)318 status_t pins4_read(uint8 *pins, uint8 length)
319 {
320 	/* used to calculate RAM refreshrate */
321 	float mclk_period;
322 	uint32 rfhcnt;
323 
324 	if (length != 128)
325 	{
326 		LOG(8,("INFO: wrong PINS length, expected 128, got %d\n", length));
327 		return B_ERROR;
328 	}
329 
330 	/* fill out the shared info si->ps struct */
331 	if (pins[39] == 0xff) si->ps.max_pixel_vco = 230;
332 	else si->ps.max_pixel_vco = 4 * pins[39];
333 
334 	if (pins[38] == 0xff) si->ps.max_system_vco = si->ps.max_pixel_vco;
335 	else si->ps.max_system_vco = 4 * pins[38];
336 
337 	if (pins[40] == 0xff) si->ps.max_dac1_clock_8 = si->ps.max_pixel_vco;
338 	else si->ps.max_dac1_clock_8 = 4 * pins[40];
339 
340 	if (pins[41] == 0xff) si->ps.max_dac1_clock_16 = si->ps.max_dac1_clock_8;
341 	else si->ps.max_dac1_clock_16 = 4 * pins[41];
342 
343 	if (pins[42] == 0xff) si->ps.max_dac1_clock_24 = si->ps.max_dac1_clock_16;
344 	else si->ps.max_dac1_clock_24 = 4 * pins[42];
345 
346 	if (pins[43] == 0xff) si->ps.max_dac1_clock_32 = si->ps.max_dac1_clock_24;
347 	else si->ps.max_dac1_clock_32 = 4 * pins[43];
348 
349 	if (pins[44] == 0xff) si->ps.max_dac2_clock_16 = si->ps.max_pixel_vco;
350 	else si->ps.max_dac2_clock_16 = 4 * pins[44];
351 
352 	if (pins[45] == 0xff) si->ps.max_dac2_clock_32 = si->ps.max_dac2_clock_16;
353 	else si->ps.max_dac2_clock_32 = 4 * pins[45];
354 
355 	/* verified against windows driver: */
356 	si->ps.std_engine_clock = 2 * pins[65];
357 
358 	if (pins[92] & 0x01) si->ps.f_ref = 14.31818;
359 	else si->ps.f_ref = 27.00000;
360 
361 	si->ps.memory_size = 4 << ((pins[92] >> 2) & 0x03);
362 	/* more memory specifics */
363 	si->ps.mctlwtst_reg = (pins[74] << 24) | (pins[73] << 16) | (pins[72] << 8) | pins [71];
364 	si->ps.option3_reg = (pins[70] << 24) | (pins[69] << 16) | (pins[68] << 8) | pins [67];
365 	/* mrsopcod field, msb is always zero.. */
366 	si->ps.memrdbk_reg =
367 		(pins[86] & 0x0f) | ((pins[86] & 0xf0) << 1) | ((pins[87] & 0x03) << 22) | ((pins[87] & 0xf0) << 21);
368 	si->ps.sdram = (pins[92] & 0x10);
369 
370 	/* setup via gathered info from pins */
371 	si->ps.option_reg = ((pins[53] & 0x38) << 7) | ((pins[53] & 0x40) << 22) | ((pins[53] & 0x80) << 15);
372 	/* calculate refresh timer info-bits for 15uS interval (or shorter). See G400 specs;
373 	 * the 15uS value was confirmed by Mark Watson for both G400 and G400MAX */
374 	/* calculate std memory clock period (nS) */
375 	switch ((si->ps.option3_reg & 0x0000e000) >> 13)
376 	{
377 	case 0:
378 		mclk_period = 3000.0 / (si->ps.std_engine_clock * 1);
379 		break;
380 	case 1:
381 		mclk_period = 5000.0 / (si->ps.std_engine_clock * 2);
382 		break;
383 	case 2:
384 		mclk_period = 9000.0 / (si->ps.std_engine_clock * 4);
385 		break;
386 	case 3:
387 		mclk_period = 2000.0 / (si->ps.std_engine_clock * 1);
388 		break;
389 	case 4:
390 		mclk_period = 3000.0 / (si->ps.std_engine_clock * 2);
391 		break;
392 	case 5:
393 		mclk_period = 1000.0 / (si->ps.std_engine_clock * 1);
394 		break;
395 	default:
396 		/* we choose the lowest refreshcount that could be needed (so assuming slowest clocked memory) */
397 		mclk_period = 3000.0 / (si->ps.std_engine_clock * 1);
398 		LOG(8,("INFO: undefined/unknown memory clock divider select, using failsafe for refresh\n"));
399 		break;
400 	}
401 	/* calculate needed setting, 'round-down' result! */
402 	rfhcnt = (uint32)(((15000 / mclk_period) - 1) / 64);
403 	/* check for register limit */
404 	if (rfhcnt > 0x3f) rfhcnt = 0x3f;
405 	/* add to option register */
406 	si->ps.option_reg |= (rfhcnt << 15);
407 
408 	/* for cards using this version of PINS both functions are in maven */
409 	si->ps.tvout = !(pins[91] & 0x01);
410 	/* beware of TVout add-on boards: test for the MAVEN ourself! */
411 	if (i2c_maven_probe() == B_OK)
412 	{
413 		si->ps.tvout = true;
414 	}
415 
416 	/* G200 and earlier cards are always singlehead cards */
417 	si->ps.secondary_head = false;
418 	if (si->ps.card_type >= G400) si->ps.secondary_head = !(pins[91] & 0x01);
419 
420 	/* assuming the only possible panellink will be on the first head */
421 	si->ps.primary_dvi = !(pins[91] & 0x40);
422 	/* logical consequence of the above */
423 	si->ps.secondary_dvi = false;
424 
425 	/* indirect logical consequences, see also G100, G200 and G400 specs */
426 	si->ps.max_dac1_clock = si->ps.max_dac1_clock_8;
427 	si->ps.max_dac2_clock = si->ps.max_dac2_clock_16;
428 	si->ps.max_dac1_clock_32dh = si->ps.max_dac1_clock_32;
429 	si->ps.max_dac2_clock_32dh = si->ps.max_dac2_clock_32;
430 	si->ps.std_engine_clock_dh = si->ps.std_engine_clock;
431 	/* not supported: */
432 	si->ps.max_dac2_clock_8 = 0;
433 	si->ps.max_dac2_clock_24 = 0;
434 	/* see G100, G200 and G400 specs */
435 	si->ps.min_system_vco = 50;
436 	si->ps.min_pixel_vco = 50;
437 	/* fixme: ehhh, no specs: confirm/tune these by testing?! */
438 	si->ps.max_video_vco = si->ps.max_pixel_vco;
439 	si->ps.min_video_vco = 50;
440 
441 	/* not used here: */
442 	si->ps.option2_reg = 0;
443 	si->ps.option4_reg = 0;
444 	si->ps.v3_option2_reg = 0;
445 	si->ps.v3_clk_div = 0;
446 	si->ps.v3_mem_type = 0;
447 	si->ps.v5_mem_type = 0;
448 
449 	/* check for a G400MAX card */
450 	/* fixme: use the PCI configspace ID method if it exists... */
451 	if (si->ps.max_dac1_clock > 300)
452 	{
453 		si->ps.card_type = G400MAX;
454 		LOG(2,("INFO: G400MAX detected\n"));
455 	}
456 	return B_OK;
457 }
458 
459 /* pins v5 is used by G450 and G550 */
pins5_read(uint8 * pins,uint8 length)460 status_t pins5_read(uint8 *pins, uint8 length)
461 {
462 	unsigned int m_factor = 6;
463 
464 	if (length != 128)
465 	{
466 		LOG(8,("INFO: wrong PINS length, expected 128, got %d\n", length));
467 		return B_ERROR;
468 	}
469 
470 	/* fill out the shared info si->ps struct */
471 	if (pins[4] == 0x01) m_factor = 8;
472 	if (pins[4] >= 0x02) m_factor = 10;
473 
474 	si->ps.max_system_vco = m_factor * pins[36];
475 	si->ps.max_video_vco = m_factor * pins[37];
476 	si->ps.max_pixel_vco = m_factor * pins[38];
477 	si->ps.min_system_vco = m_factor * pins[121];
478 	si->ps.min_video_vco = m_factor * pins[122];
479 	si->ps.min_pixel_vco = m_factor * pins[123];
480 
481 	if (pins[39] == 0xff) si->ps.max_dac1_clock_8 = si->ps.max_pixel_vco;
482 	else si->ps.max_dac1_clock_8 = 4 * pins[39];
483 
484 	if (pins[40] == 0xff) si->ps.max_dac1_clock_16 = si->ps.max_dac1_clock_8;
485 	else si->ps.max_dac1_clock_16 = 4 * pins[40];
486 
487 	if (pins[41] == 0xff) si->ps.max_dac1_clock_24 = si->ps.max_dac1_clock_16;
488 	else si->ps.max_dac1_clock_24 = 4 * pins[41];
489 
490 	if (pins[42] == 0xff) si->ps.max_dac1_clock_32 = si->ps.max_dac1_clock_24;
491 	else si->ps.max_dac1_clock_32 = 4 * pins[42];
492 
493 	if (pins[124] == 0xff) si->ps.max_dac1_clock_32dh = si->ps.max_dac1_clock_32;
494 	else si->ps.max_dac1_clock_32dh = 4 * pins[124];
495 
496 	if (pins[43] == 0xff) si->ps.max_dac2_clock_16 = si->ps.max_video_vco;
497 	else si->ps.max_dac2_clock_16 = 4 * pins[43];
498 
499 	if (pins[44] == 0xff) si->ps.max_dac2_clock_32 = si->ps.max_dac2_clock_16;
500 	else si->ps.max_dac2_clock_32 = 4 * pins[44];
501 
502 	if (pins[125] == 0xff) si->ps.max_dac2_clock_32dh = si->ps.max_dac2_clock_32;
503 	else si->ps.max_dac2_clock_32dh = 4 * pins[125];
504 
505 	if (pins[118] == 0xff) si->ps.max_dac1_clock = si->ps.max_dac1_clock_8;
506 	else si->ps.max_dac1_clock = 4 * pins[118];
507 
508 	if (pins[119] == 0xff) si->ps.max_dac2_clock = si->ps.max_dac1_clock;
509 	else si->ps.max_dac2_clock = 4 * pins[119];
510 
511 	si->ps.std_engine_clock = 4 * pins[74];
512 	si->ps.std_engine_clock_dh = 4 * pins[92];
513 
514 	si->ps.memory_size = ((pins[114] & 0x03) + 1) * 8;
515 	if ((pins[114] & 0x07) > 3)
516 	{
517 		LOG(8,("INFO: unknown RAM size, defaulting to 8Mb\n"));
518 		si->ps.memory_size = 8;
519 	}
520 
521 	if (pins[110] & 0x01) si->ps.f_ref = 14.31818;
522 	else si->ps.f_ref = 27.00000;
523 
524 	/* make sure SGRAM functions only get enabled if SGRAM mounted */
525 	if ((pins[114] & 0x18) == 0x08) si->ps.sdram = false;
526 	else si->ps.sdram = true;
527 	/* more memory specifics */
528 	si->ps.v5_mem_type = (pins[115] << 8) | pins [114];
529 
530 	/* various registers */
531 	si->ps.option_reg = (pins[51] << 24) | (pins[50] << 16) | (pins[49] << 8) | pins [48];
532 	si->ps.option2_reg = (pins[55] << 24) | (pins[54] << 16) | (pins[53] << 8) | pins [52];
533 	si->ps.option3_reg = (pins[79] << 24) | (pins[78] << 16) | (pins[77] << 8) | pins [76];
534 	si->ps.option4_reg = (pins[87] << 24) | (pins[86] << 16) | (pins[85] << 8) | pins [84];
535 	si->ps.mctlwtst_reg = (pins[83] << 24) | (pins[82] << 16) | (pins[81] << 8) | pins [80];
536 	si->ps.memrdbk_reg = (pins[91] << 24) | (pins[90] << 16) | (pins[89] << 8) | pins [88];
537 
538 	/* both the secondary head and MAVEN are on die, (so) no add-on boards exist */
539 	si->ps.secondary_head = (pins[117] & 0x70);
540 	si->ps.tvout = (pins[117] & 0x40);
541 
542 	si->ps.primary_dvi = (pins[117] & 0x02);
543 	si->ps.secondary_dvi = (pins[117] & 0x20);
544 
545 	/* not supported: */
546 	si->ps.max_dac2_clock_8 = 0;
547 	si->ps.max_dac2_clock_24 = 0;
548 
549 	/* not used here: */
550 	si->ps.v3_option2_reg = 0;
551 	si->ps.v3_clk_div = 0;
552 	si->ps.v3_mem_type = 0;
553 	return B_OK;
554 }
555 
556 /* fake_pins presumes the card was coldstarted by it's BIOS */
fake_pins(void)557 void fake_pins(void)
558 {
559 	LOG(8,("INFO: faking PINS\n"));
560 
561 	switch (si->ps.card_type)
562 	{
563 		case MIL1:
564 			pinsmil1_fake();
565 			break;
566 		case MIL2:
567 			pinsmil2_fake();
568 			break;
569 		case G100:
570 			pinsg100_fake();
571 			break;
572 		case G200:
573 			pinsg200_fake();
574 			break;
575 		case G400:
576 			pinsg400_fake();
577 			break;
578 		case G400MAX:
579 			pinsg400max_fake();
580 			break;
581 		case G450:
582 			pinsg450_fake();
583 			break;
584 		case G550:
585 			pinsg550_fake();
586 			break;
587 	}
588 
589 	/* find out if the card has a maven */
590 	si->ps.tvout = false;
591 	si->ps.secondary_head = false;
592 	/* only do I2C probe if the card has a chance */
593 	if (si->ps.card_type >= G100)
594 	{
595 		if (i2c_maven_probe() == B_OK)
596 		{
597 			si->ps.tvout = true;
598 			/* G200 and earlier cards are always singlehead cards */
599 			if (si->ps.card_type >= G400) si->ps.secondary_head = true;
600 		}
601 	}
602 
603 	/* not used because no coldstart will be attempted */
604 	si->ps.std_engine_clock = 0;
605 	si->ps.std_engine_clock_dh = 0;
606 	si->ps.mctlwtst_reg = 0;
607 	si->ps.memrdbk_reg = 0;
608 	si->ps.option_reg = 0;
609 	si->ps.option2_reg = 0;
610 	si->ps.option3_reg = 0;
611 	si->ps.option4_reg = 0;
612 	si->ps.v3_option2_reg = 0;
613 	si->ps.v3_clk_div = 0;
614 	si->ps.v3_mem_type = 0;
615 	si->ps.v5_mem_type = 0;
616 }
617 
pinsmil1_fake(void)618 void pinsmil1_fake(void)
619 {
620 	/* 'worst case' scenario defaults, overrule-able via mga.settings if needed */
621 
622 	si->ps.f_ref = 14.31818;
623 	/* see MIL1 specs */
624 	si->ps.max_system_vco = 220;
625 	si->ps.min_system_vco = 110;
626 	si->ps.max_pixel_vco = 220;
627 	si->ps.min_pixel_vco = 110;
628 	/* no specs, assuming these */
629 	si->ps.max_video_vco = 0;
630 	si->ps.min_video_vco = 0;
631 	/* see MIL1 specs */
632 	si->ps.max_dac1_clock = 220;
633 	si->ps.max_dac1_clock_8 = 220;
634 	si->ps.max_dac1_clock_16 = 200;
635 	/* 'failsave' values */
636 	si->ps.max_dac1_clock_24 = 180;
637 	si->ps.max_dac1_clock_32 = 136;
638 	si->ps.max_dac1_clock_32dh = 0;
639 	/* see specs */
640 	si->ps.max_dac2_clock = 0;
641 	si->ps.max_dac2_clock_8 = 0;
642 	si->ps.max_dac2_clock_16 = 0;
643 	si->ps.max_dac2_clock_24 = 0;
644 	si->ps.max_dac2_clock_32 = 0;
645 	/* 'failsave' value */
646 	si->ps.max_dac2_clock_32dh = 0;
647 	si->ps.primary_dvi = false;
648 	si->ps.secondary_dvi = false;
649 	/*  presume 2Mb RAM mounted */
650 	//fixme: see if we can get this from OPTION or so...
651 	si->ps.memory_size = 2;
652 	//fixme: should be overrule-able via mga.settings for MIL1.
653 	//fail-safe mode for now:
654 	si->ps.sdram = true;
655 }
656 
pinsmil2_fake(void)657 void pinsmil2_fake(void)
658 {
659 	/* 'worst case' scenario defaults, overrule-able via mga.settings if needed */
660 
661 	si->ps.f_ref = 14.31818;
662 	/* see MIL2 specs */
663 	si->ps.max_system_vco = 220;
664 	si->ps.min_system_vco = 110;
665 	si->ps.max_pixel_vco = 220;
666 	si->ps.min_pixel_vco = 110;
667 	/* no specs, assuming these */
668 	si->ps.max_video_vco = 0;
669 	si->ps.min_video_vco = 0;
670 	/* see MIL2 specs */
671 	si->ps.max_dac1_clock = 220;
672 	si->ps.max_dac1_clock_8 = 220;
673 	si->ps.max_dac1_clock_16 = 200;
674 	/* 'failsave' values */
675 	si->ps.max_dac1_clock_24 = 180;
676 	si->ps.max_dac1_clock_32 = 136;
677 	si->ps.max_dac1_clock_32dh = 0;
678 	/* see specs */
679 	si->ps.max_dac2_clock = 0;
680 	si->ps.max_dac2_clock_8 = 0;
681 	si->ps.max_dac2_clock_16 = 0;
682 	si->ps.max_dac2_clock_24 = 0;
683 	si->ps.max_dac2_clock_32 = 0;
684 	/* 'failsave' value */
685 	si->ps.max_dac2_clock_32dh = 0;
686 	si->ps.primary_dvi = false;
687 	si->ps.secondary_dvi = false;
688 	/*  presume 4Mb RAM mounted */
689 	//fixme: see if we can get this from OPTION or so...
690 	si->ps.memory_size = 4;
691 	//fixme: should be overrule-able via mga.settings for MIL2.
692 	//fail-safe mode for now:
693 	si->ps.sdram = true;
694 }
695 
pinsg100_fake(void)696 void pinsg100_fake(void)
697 {
698 	/* 'worst case' scenario defaults, overrule-able via mga.settings if needed */
699 
700 	//fixme: should be overrule-able via mga.settings.
701 	si->ps.f_ref = 27.000;
702 	/* see G100 specs */
703 	si->ps.max_system_vco = 230;
704 	si->ps.min_system_vco = 50;
705 	si->ps.max_pixel_vco = 230;
706 	si->ps.min_pixel_vco = 50;
707 	/* no specs, assuming these */
708 	si->ps.max_video_vco = 230;
709 	si->ps.min_video_vco = 50;
710 	/* see G100 specs */
711 	si->ps.max_dac1_clock = 230;
712 	si->ps.max_dac1_clock_8 = 230;
713 	si->ps.max_dac1_clock_16 = 230;
714 	/* 'failsave' values */
715 	si->ps.max_dac1_clock_24 = 180;
716 	si->ps.max_dac1_clock_32 = 136;
717 	si->ps.max_dac1_clock_32dh = 136;
718 	/* see specs */
719 	si->ps.max_dac2_clock = 136;
720 	si->ps.max_dac2_clock_8 = 0;
721 	si->ps.max_dac2_clock_16 = 136;
722 	si->ps.max_dac2_clock_24 = 0;
723 	si->ps.max_dac2_clock_32 = 136;
724 	/* 'failsave' value */
725 	si->ps.max_dac2_clock_32dh = 136;
726 	/* assuming the only possible panellink will be on the first head */
727 	//fixme: primary_dvi should be overrule-able via mga.settings for G100.
728 	si->ps.primary_dvi = false;
729 	si->ps.secondary_dvi = false;
730 	/*  presume 2Mb RAM mounted */
731 	si->ps.memory_size = 2;
732 	//fixme: should be overrule-able via mga.settings for G100.
733 	//fail-safe mode for now:
734 	si->ps.sdram = true;
735 }
736 
pinsg200_fake(void)737 void pinsg200_fake(void)
738 {
739 	/* 'worst case' scenario defaults, overrule-able via mga.settings if needed */
740 
741 	//fixme: should be overrule-able via mga.settings.
742 	si->ps.f_ref = 27.000;
743 	/* see G200 specs */
744 	si->ps.max_system_vco = 250;
745 	si->ps.min_system_vco = 50;
746 	si->ps.max_pixel_vco = 250;
747 	si->ps.min_pixel_vco = 50;
748 	/* no specs, assuming these */
749 	si->ps.max_video_vco = 250;
750 	si->ps.min_video_vco = 50;
751 	/* see G200 specs */
752 	si->ps.max_dac1_clock = 250;
753 	si->ps.max_dac1_clock_8 = 250;
754 	si->ps.max_dac1_clock_16 = 250;
755 	/* 'failsave' values */
756 	si->ps.max_dac1_clock_24 = 180;
757 	si->ps.max_dac1_clock_32 = 136;
758 	si->ps.max_dac1_clock_32dh = 136;
759 	/* see specs */
760 	si->ps.max_dac2_clock = 136;
761 	si->ps.max_dac2_clock_8 = 0;
762 	si->ps.max_dac2_clock_16 = 136;
763 	si->ps.max_dac2_clock_24 = 0;
764 	si->ps.max_dac2_clock_32 = 136;
765 	/* 'failsave' value */
766 	si->ps.max_dac2_clock_32dh = 136;
767 	/* assuming the only possible panellink will be on the first head */
768 	//fixme: primary_dvi should be overrule-able via mga.settings for G100.
769 	si->ps.primary_dvi = false;
770 	si->ps.secondary_dvi = false;
771 	/*  presume 2Mb RAM mounted */
772 	si->ps.memory_size = 2;
773 	/* ask the G200 what type of RAM it has been set to by it's BIOS */
774 	si->ps.sdram = !(CFGR(OPTION) & 0x00004000);
775 }
776 
pinsg400_fake(void)777 void pinsg400_fake(void)
778 {
779 	/* 'worst case' scenario defaults, overrule-able via mga.settings if needed */
780 
781 	//fixme: should be overrule-able via mga.settings.
782 	si->ps.f_ref = 27.000;
783 	/* see G400 specs */
784 	si->ps.max_system_vco = 300;
785 	si->ps.min_system_vco = 50;
786 	si->ps.max_pixel_vco = 300;
787 	si->ps.min_pixel_vco = 50;
788 	/* no specs, assuming these */
789 	si->ps.max_video_vco = 300;
790 	si->ps.min_video_vco = 50;
791 	/* see G400 specs */
792 	si->ps.max_dac1_clock = 300;
793 	si->ps.max_dac1_clock_8 = 300;
794 	si->ps.max_dac1_clock_16 = 300;
795 	/* 'failsave' values */
796 	si->ps.max_dac1_clock_24 = 230;
797 	si->ps.max_dac1_clock_32 = 180;
798 	si->ps.max_dac1_clock_32dh = 136;
799 	/* see specs */
800 	si->ps.max_dac2_clock = 136;
801 	si->ps.max_dac2_clock_8 = 0;
802 	si->ps.max_dac2_clock_16 = 136;
803 	si->ps.max_dac2_clock_24 = 0;
804 	si->ps.max_dac2_clock_32 = 136;
805 	/* 'failsave' value */
806 	si->ps.max_dac2_clock_32dh = 136;
807 	/* assuming the only possible panellink will be on the first head */
808 	//fixme: primary_dvi should be overrule-able via mga.settings for G400.
809 	si->ps.primary_dvi = false;
810 	si->ps.secondary_dvi = false;
811 	/*  presume 4Mb RAM mounted */
812 	si->ps.memory_size = 4;
813 	/* ask the G400 what type of RAM it has been set to by it's BIOS */
814 	si->ps.sdram = !(CFGR(OPTION) & 0x00004000);
815 }
816 
817 /* this routine is currently unused, because G400MAX is detected via pins! */
pinsg400max_fake(void)818 void pinsg400max_fake(void)
819 {
820 	/* 'worst case' scenario defaults, overrule-able via mga.settings if needed */
821 
822 	//fixme: should be overrule-able via mga.settings.
823 	si->ps.f_ref = 27.000;
824 	/* see G400MAX specs */
825 	si->ps.max_system_vco = 360;
826 	si->ps.min_system_vco = 50;
827 	si->ps.max_pixel_vco = 360;
828 	si->ps.min_pixel_vco = 50;
829 	/* no specs, assuming these */
830 	si->ps.max_video_vco = 360;
831 	si->ps.min_video_vco = 50;
832 	/* see G400MAX specs */
833 	si->ps.max_dac1_clock = 360;
834 	si->ps.max_dac1_clock_8 = 360;
835 	si->ps.max_dac1_clock_16 = 360;
836 	/* 'failsave' values */
837 	si->ps.max_dac1_clock_24 = 280;
838 	si->ps.max_dac1_clock_32 = 230;
839 	si->ps.max_dac1_clock_32dh = 136;
840 	/* see specs */
841 	si->ps.max_dac2_clock = 136;
842 	si->ps.max_dac2_clock_8 = 0;
843 	si->ps.max_dac2_clock_16 = 136;
844 	si->ps.max_dac2_clock_24 = 0;
845 	si->ps.max_dac2_clock_32 = 136;
846 	/* 'failsave' value */
847 	si->ps.max_dac2_clock_32dh = 136;
848 	/* assuming the only possible panellink will be on the first head */
849 	//fixme: primary_dvi should be overrule-able via mga.settings for G400MAX.
850 	si->ps.primary_dvi = false;
851 	si->ps.secondary_dvi = false;
852 	/*  presume 4Mb RAM mounted */
853 	si->ps.memory_size = 4;
854 	/* ask the G400MAX what type of RAM it has been set to by it's BIOS */
855 	si->ps.sdram = !(CFGR(OPTION) & 0x00004000);
856 }
857 
pinsg450_fake(void)858 void pinsg450_fake(void)
859 {
860 	/* 'worst case' scenario defaults, overrule-able via mga.settings if needed */
861 
862 	//fixme: should be overrule-able via mga.settings.
863 	si->ps.f_ref = 27.000;
864 	/* see G450 pins readouts for max ranges, then use a bit smaller ones */
865 	/* carefull not to take to high lower limits, and high should be >= 2x low. */
866 	si->ps.max_system_vco = 640;
867 	si->ps.min_system_vco = 320;
868 	si->ps.max_pixel_vco = 640;
869 	si->ps.min_pixel_vco = 320;
870 	si->ps.max_video_vco = 640;
871 	si->ps.min_video_vco = 320;
872 	si->ps.max_dac1_clock = 360;
873 	si->ps.max_dac1_clock_8 = 360;
874 	si->ps.max_dac1_clock_16 = 360;
875 	/* 'failsave' values */
876 	si->ps.max_dac1_clock_24 = 280;
877 	si->ps.max_dac1_clock_32 = 230;
878 	si->ps.max_dac1_clock_32dh = 180;
879 	/* see G450 pins readouts */
880 	si->ps.max_dac2_clock = 232;
881 	si->ps.max_dac2_clock_8 = 0;
882 	si->ps.max_dac2_clock_16 = 232;
883 	si->ps.max_dac2_clock_24 = 0;
884 	si->ps.max_dac2_clock_32 = 232;
885 	/* 'failsave' values */
886 	si->ps.max_dac2_clock_32dh = 180;
887 	//fixme: primary & secondary_dvi should be overrule-able via mga.settings for G450.
888 	si->ps.primary_dvi = false;
889 	si->ps.secondary_dvi = false;
890 	/*  presume 8Mb RAM mounted */
891 	si->ps.memory_size = 8;
892 	/* ask the G450 what type of RAM it has been set to by it's BIOS */
893 //todo:
894 //	si->ps.sdram = !(CFGR(OPTION) & 0x00004000);
895 //fail-safe mode for now:
896 	si->ps.sdram = true;
897 }
898 
pinsg550_fake(void)899 void pinsg550_fake(void)
900 {
901 	/* 'worst case' scenario defaults, overrule-able via mga.settings if needed */
902 
903 	//fixme: should be overrule-able via mga.settings.
904 	si->ps.f_ref = 27.000;
905 	/* see G550 pins readouts for max ranges, then use a bit smaller ones */
906 	/* carefull not to take to high lower limits, and high should be >= 2x low. */
907 	si->ps.max_system_vco = 768;
908 	si->ps.min_system_vco = 384;
909 	si->ps.max_pixel_vco = 960;
910 	si->ps.min_pixel_vco = 320;
911 	si->ps.max_video_vco = 960;
912 	si->ps.min_video_vco = 320;
913 	si->ps.max_dac1_clock = 360;
914 	si->ps.max_dac1_clock_8 = 360;
915 	si->ps.max_dac1_clock_16 = 360;
916 	/* 'failsave' values */
917 	si->ps.max_dac1_clock_24 = 280;
918 	si->ps.max_dac1_clock_32 = 230;
919 	si->ps.max_dac1_clock_32dh = 180;
920 	/* see G550 pins readouts */
921 	si->ps.max_dac2_clock = 232;
922 	si->ps.max_dac2_clock_8 = 0;
923 	si->ps.max_dac2_clock_16 = 232;
924 	si->ps.max_dac2_clock_24 = 0;
925 	si->ps.max_dac2_clock_32 = 232;
926 	/* 'failsave' values */
927 	si->ps.max_dac2_clock_32dh = 180;
928 	//fixme: primary & secondary_dvi should be overrule-able via mga.settings for G550.
929 	si->ps.primary_dvi = false;
930 	si->ps.secondary_dvi = false;
931 	/*  presume 8Mb RAM mounted */
932 	si->ps.memory_size = 8;
933 	/* ask the G550 what type of RAM it has been set to by it's BIOS */
934 //todo:
935 //	si->ps.sdram = !(CFGR(OPTION) & 0x00004000);
936 //fail-safe mode for now:
937 	si->ps.sdram = true;
938 }
939 
dump_pins(void)940 void dump_pins(void)
941 {
942 	LOG(2,("INFO: pinsdump follows:\n"));
943 	LOG(2,("f_ref: %fMhz\n", si->ps.f_ref));
944 	LOG(2,("max_system_vco: %dMhz\n", si->ps.max_system_vco));
945 	LOG(2,("min_system_vco: %dMhz\n", si->ps.min_system_vco));
946 	LOG(2,("max_pixel_vco: %dMhz\n", si->ps.max_pixel_vco));
947 	LOG(2,("min_pixel_vco: %dMhz\n", si->ps.min_pixel_vco));
948 	LOG(2,("max_video_vco: %dMhz\n", si->ps.max_video_vco));
949 	LOG(2,("min_video_vco: %dMhz\n", si->ps.min_video_vco));
950 	LOG(2,("std_engine_clock: %dMhz\n", si->ps.std_engine_clock));
951 	LOG(2,("std_engine_clock_dh: %dMhz\n", si->ps.std_engine_clock_dh));
952 	LOG(2,("max_dac1_clock: %dMhz\n", si->ps.max_dac1_clock));
953 	LOG(2,("max_dac1_clock_8: %dMhz\n", si->ps.max_dac1_clock_8));
954 	LOG(2,("max_dac1_clock_16: %dMhz\n", si->ps.max_dac1_clock_16));
955 	LOG(2,("max_dac1_clock_24: %dMhz\n", si->ps.max_dac1_clock_24));
956 	LOG(2,("max_dac1_clock_32: %dMhz\n", si->ps.max_dac1_clock_32));
957 	LOG(2,("max_dac1_clock_32dh: %dMhz\n", si->ps.max_dac1_clock_32dh));
958 	LOG(2,("max_dac2_clock: %dMhz\n", si->ps.max_dac2_clock));
959 	LOG(2,("max_dac2_clock_8: %dMhz\n", si->ps.max_dac2_clock_8));
960 	LOG(2,("max_dac2_clock_16: %dMhz\n", si->ps.max_dac2_clock_16));
961 	LOG(2,("max_dac2_clock_24: %dMhz\n", si->ps.max_dac2_clock_24));
962 	LOG(2,("max_dac2_clock_32: %dMhz\n", si->ps.max_dac2_clock_32));
963 	LOG(2,("max_dac2_clock_32dh: %dMhz\n", si->ps.max_dac2_clock_32dh));
964 	LOG(2,("secondary_head: "));
965 	if (si->ps.secondary_head) LOG(2,("present\n")); else LOG(2,("absent\n"));
966 	LOG(2,("tvout: "));
967 	if (si->ps.tvout) LOG(2,("present\n")); else LOG(2,("absent\n"));
968 	//fixme: probably only valid for pre-G400 cards...(?)
969 	if ((si->ps.tvout) && (si->ps.card_type < G450))
970 	{
971 		if (si->ps.card_type < G400)
972 			LOG(2,("MGA_TVO version: "));
973 		else
974 			LOG(2,("MAVEN version: "));
975 		if ((MAVR(VERSION)) < 20)
976 			LOG(2,("rev. B\n"));
977 		else
978 			LOG(2,("rev. C\n"));
979 	}
980 	LOG(2,("primary_dvi: "));
981 	if (si->ps.primary_dvi) LOG(2,("present\n")); else LOG(2,("absent\n"));
982 	LOG(2,("secondary_dvi: "));
983 	if (si->ps.secondary_dvi) LOG(2,("present\n")); else LOG(2,("absent\n"));
984 	LOG(2,("card memory_size: %dMb\n", si->ps.memory_size));
985 	LOG(2,("mctlwtst register: $%08x\n", si->ps.mctlwtst_reg));
986 	LOG(2,("memrdbk register: $%08x\n", si->ps.memrdbk_reg));
987 	LOG(2,("option register: $%08x\n", si->ps.option_reg));
988 	LOG(2,("option2 register: $%08x\n", si->ps.option2_reg));
989 	LOG(2,("option3 register: $%08x\n", si->ps.option3_reg));
990 	LOG(2,("option4 register: $%08x\n", si->ps.option4_reg));
991 	LOG(2,("v3_option2_reg: $%02x\n", si->ps.v3_option2_reg));
992 	LOG(2,("v3_clock_div: $%02x\n", si->ps.v3_clk_div));
993 	LOG(2,("v3_mem_type: $%02x\n", si->ps.v3_mem_type));
994 	LOG(2,("v5_mem_type: $%04x\n", si->ps.v5_mem_type));
995 	LOG(2,("sdram: "));
996 	if (si->ps.sdram) LOG(2,("SDRAM card\n")); else LOG(2,("SGRAM card\n"));
997 	LOG(2,("INFO: end pinsdump.\n"));
998 }
999