1 /* $XConsortium: nv_driver.c /main/3 1996/10/28 05:13:37 kaleb $ */
2 /*
3 * Copyright 1996-1997 David J. McKay
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * DAVID J. MCKAY BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
19 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
20 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24 /*
25 * GPL licensing note -- nVidia is allowing a liberal interpretation of
26 * the documentation restriction above, to merely say that this nVidia's
27 * copyright and disclaimer should be included with all code derived
28 * from this source. -- Jeff Garzik <jgarzik@pobox.com>, 01/Nov/99
29 */
30
31 /* Hacked together from mga driver and 3.3.4 NVIDIA driver by Jarno Paananen
32 <jpaana@s2.org> */
33
34 /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_setup.c,v 1.18 2002/08/0
35 5 20:47:06 mvojkovi Exp $ */
36
37 #include <linux/delay.h>
38 #include <linux/pci.h>
39 #include <linux/pci_ids.h>
40 #include "nv_type.h"
41 #include "rivafb.h"
42 #include "nvreg.h"
43
44 #define PFX "rivafb: "
45
MISCin(struct riva_par * par)46 static inline unsigned char MISCin(struct riva_par *par)
47 {
48 return (VGA_RD08(par->riva.PVIO, 0x3cc));
49 }
50
51 static Bool
riva_is_connected(struct riva_par * par,Bool second)52 riva_is_connected(struct riva_par *par, Bool second)
53 {
54 volatile U032 __iomem *PRAMDAC = par->riva.PRAMDAC0;
55 U032 reg52C, reg608;
56 Bool present;
57
58 if(second) PRAMDAC += 0x800;
59
60 reg52C = NV_RD32(PRAMDAC, 0x052C);
61 reg608 = NV_RD32(PRAMDAC, 0x0608);
62
63 NV_WR32(PRAMDAC, 0x0608, reg608 & ~0x00010000);
64
65 NV_WR32(PRAMDAC, 0x052C, reg52C & 0x0000FEEE);
66 mdelay(1);
67 NV_WR32(PRAMDAC, 0x052C, NV_RD32(PRAMDAC, 0x052C) | 1);
68
69 NV_WR32(par->riva.PRAMDAC0, 0x0610, 0x94050140);
70 NV_WR32(par->riva.PRAMDAC0, 0x0608, 0x00001000);
71
72 mdelay(1);
73
74 present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? TRUE : FALSE;
75
76 NV_WR32(par->riva.PRAMDAC0, 0x0608,
77 NV_RD32(par->riva.PRAMDAC0, 0x0608) & 0x0000EFFF);
78
79 NV_WR32(PRAMDAC, 0x052C, reg52C);
80 NV_WR32(PRAMDAC, 0x0608, reg608);
81
82 return present;
83 }
84
85 static void
riva_override_CRTC(struct riva_par * par)86 riva_override_CRTC(struct riva_par *par)
87 {
88 printk(KERN_INFO PFX
89 "Detected CRTC controller %i being used\n",
90 par->SecondCRTC ? 1 : 0);
91
92 if(par->forceCRTC != -1) {
93 printk(KERN_INFO PFX
94 "Forcing usage of CRTC %i\n", par->forceCRTC);
95 par->SecondCRTC = par->forceCRTC;
96 }
97 }
98
99 static void
riva_is_second(struct riva_par * par)100 riva_is_second(struct riva_par *par)
101 {
102 if (par->FlatPanel == 1) {
103 switch(par->Chipset & 0xffff) {
104 case 0x0174:
105 case 0x0175:
106 case 0x0176:
107 case 0x0177:
108 case 0x0179:
109 case 0x017C:
110 case 0x017D:
111 case 0x0186:
112 case 0x0187:
113 /* this might not be a good default for the chips below */
114 case 0x0286:
115 case 0x028C:
116 case 0x0316:
117 case 0x0317:
118 case 0x031A:
119 case 0x031B:
120 case 0x031C:
121 case 0x031D:
122 case 0x031E:
123 case 0x031F:
124 case 0x0324:
125 case 0x0325:
126 case 0x0328:
127 case 0x0329:
128 case 0x032C:
129 case 0x032D:
130 par->SecondCRTC = TRUE;
131 break;
132 default:
133 par->SecondCRTC = FALSE;
134 break;
135 }
136 } else {
137 if(riva_is_connected(par, 0)) {
138
139 if (NV_RD32(par->riva.PRAMDAC0, 0x0000052C) & 0x100)
140 par->SecondCRTC = TRUE;
141 else
142 par->SecondCRTC = FALSE;
143 } else
144 if (riva_is_connected(par, 1)) {
145 if(NV_RD32(par->riva.PRAMDAC0, 0x0000252C) & 0x100)
146 par->SecondCRTC = TRUE;
147 else
148 par->SecondCRTC = FALSE;
149 } else /* default */
150 par->SecondCRTC = FALSE;
151 }
152 riva_override_CRTC(par);
153 }
154
riva_get_memlen(struct riva_par * par)155 unsigned long riva_get_memlen(struct riva_par *par)
156 {
157 RIVA_HW_INST *chip = &par->riva;
158 unsigned long memlen = 0;
159 unsigned int chipset = par->Chipset;
160 struct pci_dev* dev;
161 u32 amt;
162
163 switch (chip->Architecture) {
164 case NV_ARCH_03:
165 if (NV_RD32(chip->PFB, 0x00000000) & 0x00000020) {
166 if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20)
167 && ((NV_RD32(chip->PMC, 0x00000000)&0x0F)>=0x02)) {
168 /*
169 * SDRAM 128 ZX.
170 */
171 switch (NV_RD32(chip->PFB,0x00000000) & 0x03) {
172 case 2:
173 memlen = 1024 * 4;
174 break;
175 case 1:
176 memlen = 1024 * 2;
177 break;
178 default:
179 memlen = 1024 * 8;
180 break;
181 }
182 } else {
183 memlen = 1024 * 8;
184 }
185 } else {
186 /*
187 * SGRAM 128.
188 */
189 switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003) {
190 case 0:
191 memlen = 1024 * 8;
192 break;
193 case 2:
194 memlen = 1024 * 4;
195 break;
196 default:
197 memlen = 1024 * 2;
198 break;
199 }
200 }
201 break;
202 case NV_ARCH_04:
203 if (NV_RD32(chip->PFB, 0x00000000) & 0x00000100) {
204 memlen = ((NV_RD32(chip->PFB, 0x00000000)>>12)&0x0F) *
205 1024 * 2 + 1024 * 2;
206 } else {
207 switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003) {
208 case 0:
209 memlen = 1024 * 32;
210 break;
211 case 1:
212 memlen = 1024 * 4;
213 break;
214 case 2:
215 memlen = 1024 * 8;
216 break;
217 case 3:
218 default:
219 memlen = 1024 * 16;
220 break;
221 }
222 }
223 break;
224 case NV_ARCH_10:
225 case NV_ARCH_20:
226 case NV_ARCH_30:
227 if(chipset == NV_CHIP_IGEFORCE2) {
228
229 dev = pci_get_bus_and_slot(0, 1);
230 pci_read_config_dword(dev, 0x7C, &amt);
231 pci_dev_put(dev);
232 memlen = (((amt >> 6) & 31) + 1) * 1024;
233 } else if (chipset == NV_CHIP_0x01F0) {
234 dev = pci_get_bus_and_slot(0, 1);
235 pci_read_config_dword(dev, 0x84, &amt);
236 pci_dev_put(dev);
237 memlen = (((amt >> 4) & 127) + 1) * 1024;
238 } else {
239 switch ((NV_RD32(chip->PFB, 0x0000020C) >> 20) &
240 0x000000FF){
241 case 0x02:
242 memlen = 1024 * 2;
243 break;
244 case 0x04:
245 memlen = 1024 * 4;
246 break;
247 case 0x08:
248 memlen = 1024 * 8;
249 break;
250 case 0x10:
251 memlen = 1024 * 16;
252 break;
253 case 0x20:
254 memlen = 1024 * 32;
255 break;
256 case 0x40:
257 memlen = 1024 * 64;
258 break;
259 case 0x80:
260 memlen = 1024 * 128;
261 break;
262 default:
263 memlen = 1024 * 16;
264 break;
265 }
266 }
267 break;
268 }
269 return memlen;
270 }
271
riva_get_maxdclk(struct riva_par * par)272 unsigned long riva_get_maxdclk(struct riva_par *par)
273 {
274 RIVA_HW_INST *chip = &par->riva;
275 unsigned long dclk = 0;
276
277 switch (chip->Architecture) {
278 case NV_ARCH_03:
279 if (NV_RD32(chip->PFB, 0x00000000) & 0x00000020) {
280 if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20)
281 && ((NV_RD32(chip->PMC,0x00000000)&0x0F) >= 0x02)) {
282 /*
283 * SDRAM 128 ZX.
284 */
285 dclk = 800000;
286 } else {
287 dclk = 1000000;
288 }
289 } else {
290 /*
291 * SGRAM 128.
292 */
293 dclk = 1000000;
294 }
295 break;
296 case NV_ARCH_04:
297 case NV_ARCH_10:
298 case NV_ARCH_20:
299 case NV_ARCH_30:
300 switch ((NV_RD32(chip->PFB, 0x00000000) >> 3) & 0x00000003) {
301 case 3:
302 dclk = 800000;
303 break;
304 default:
305 dclk = 1000000;
306 break;
307 }
308 break;
309 }
310 return dclk;
311 }
312
313 void
riva_common_setup(struct riva_par * par)314 riva_common_setup(struct riva_par *par)
315 {
316 par->riva.EnableIRQ = 0;
317 par->riva.PRAMDAC0 =
318 (volatile U032 __iomem *)(par->ctrl_base + 0x00680000);
319 par->riva.PFB =
320 (volatile U032 __iomem *)(par->ctrl_base + 0x00100000);
321 par->riva.PFIFO =
322 (volatile U032 __iomem *)(par->ctrl_base + 0x00002000);
323 par->riva.PGRAPH =
324 (volatile U032 __iomem *)(par->ctrl_base + 0x00400000);
325 par->riva.PEXTDEV =
326 (volatile U032 __iomem *)(par->ctrl_base + 0x00101000);
327 par->riva.PTIMER =
328 (volatile U032 __iomem *)(par->ctrl_base + 0x00009000);
329 par->riva.PMC =
330 (volatile U032 __iomem *)(par->ctrl_base + 0x00000000);
331 par->riva.FIFO =
332 (volatile U032 __iomem *)(par->ctrl_base + 0x00800000);
333 par->riva.PCIO0 = par->ctrl_base + 0x00601000;
334 par->riva.PDIO0 = par->ctrl_base + 0x00681000;
335 par->riva.PVIO = par->ctrl_base + 0x000C0000;
336
337 par->riva.IO = (MISCin(par) & 0x01) ? 0x3D0 : 0x3B0;
338
339 if (par->FlatPanel == -1) {
340 switch (par->Chipset & 0xffff) {
341 case 0x0112: /* known laptop chips */
342 case 0x0174:
343 case 0x0175:
344 case 0x0176:
345 case 0x0177:
346 case 0x0179:
347 case 0x017C:
348 case 0x017D:
349 case 0x0186:
350 case 0x0187:
351 case 0x0286:
352 case 0x028C:
353 case 0x0316:
354 case 0x0317:
355 case 0x031A:
356 case 0x031B:
357 case 0x031C:
358 case 0x031D:
359 case 0x031E:
360 case 0x031F:
361 case 0x0324:
362 case 0x0325:
363 case 0x0328:
364 case 0x0329:
365 case 0x032C:
366 case 0x032D:
367 printk(KERN_INFO PFX
368 "On a laptop. Assuming Digital Flat Panel\n");
369 par->FlatPanel = 1;
370 break;
371 default:
372 break;
373 }
374 }
375
376 switch (par->Chipset & 0x0ff0) {
377 case 0x0110:
378 if (par->Chipset == NV_CHIP_GEFORCE2_GO)
379 par->SecondCRTC = TRUE;
380 #if defined(__powerpc__)
381 if (par->FlatPanel == 1)
382 par->SecondCRTC = TRUE;
383 #endif
384 riva_override_CRTC(par);
385 break;
386 case 0x0170:
387 case 0x0180:
388 case 0x01F0:
389 case 0x0250:
390 case 0x0280:
391 case 0x0300:
392 case 0x0310:
393 case 0x0320:
394 case 0x0330:
395 case 0x0340:
396 riva_is_second(par);
397 break;
398 default:
399 break;
400 }
401
402 if (par->SecondCRTC) {
403 par->riva.PCIO = par->riva.PCIO0 + 0x2000;
404 par->riva.PCRTC = par->riva.PCRTC0 + 0x800;
405 par->riva.PRAMDAC = par->riva.PRAMDAC0 + 0x800;
406 par->riva.PDIO = par->riva.PDIO0 + 0x2000;
407 } else {
408 par->riva.PCIO = par->riva.PCIO0;
409 par->riva.PCRTC = par->riva.PCRTC0;
410 par->riva.PRAMDAC = par->riva.PRAMDAC0;
411 par->riva.PDIO = par->riva.PDIO0;
412 }
413
414 if (par->FlatPanel == -1) {
415 /* Fix me, need x86 DDC code */
416 par->FlatPanel = 0;
417 }
418 par->riva.flatPanel = (par->FlatPanel > 0) ? TRUE : FALSE;
419
420 RivaGetConfig(&par->riva, par->Chipset);
421 }
422
423