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1 /*
2 * linux/drivers/video/riva/fbdev.c - nVidia RIVA 128/TNT/TNT2 fb driver
3 *
4 * Maintained by Ani Joshi <ajoshi@shell.unixbox.com>
5 *
6 * Copyright 1999-2000 Jeff Garzik
7 *
8 * Contributors:
9 *
10 * Ani Joshi: Lots of debugging and cleanup work, really helped
11 * get the driver going
12 *
13 * Ferenc Bakonyi: Bug fixes, cleanup, modularization
14 *
15 * Jindrich Makovicka: Accel code help, hw cursor, mtrr
16 *
17 * Paul Richards: Bug fixes, updates
18 *
19 * Initial template from skeletonfb.c, created 28 Dec 1997 by Geert Uytterhoeven
20 * Includes riva_hw.c from nVidia, see copyright below.
21 * KGI code provided the basis for state storage, init, and mode switching.
22 *
23 * This file is subject to the terms and conditions of the GNU General Public
24 * License. See the file COPYING in the main directory of this archive
25 * for more details.
26 *
27 * Known bugs and issues:
28 * restoring text mode fails
29 * doublescan modes are broken
30 */
31
32 #include <linux/module.h>
33 #include <linux/kernel.h>
34 #include <linux/errno.h>
35 #include <linux/string.h>
36 #include <linux/mm.h>
37 #include <linux/slab.h>
38 #include <linux/delay.h>
39 #include <linux/fb.h>
40 #include <linux/init.h>
41 #include <linux/pci.h>
42 #include <linux/backlight.h>
43 #include <linux/bitrev.h>
44 #ifdef CONFIG_MTRR
45 #include <asm/mtrr.h>
46 #endif
47 #ifdef CONFIG_PPC_OF
48 #include <asm/prom.h>
49 #include <asm/pci-bridge.h>
50 #endif
51 #ifdef CONFIG_PMAC_BACKLIGHT
52 #include <asm/machdep.h>
53 #include <asm/backlight.h>
54 #endif
55
56 #include "rivafb.h"
57 #include "nvreg.h"
58
59 /* version number of this driver */
60 #define RIVAFB_VERSION "0.9.5b"
61
62 /* ------------------------------------------------------------------------- *
63 *
64 * various helpful macros and constants
65 *
66 * ------------------------------------------------------------------------- */
67 #ifdef CONFIG_FB_RIVA_DEBUG
68 #define NVTRACE printk
69 #else
70 #define NVTRACE if(0) printk
71 #endif
72
73 #define NVTRACE_ENTER(...) NVTRACE("%s START\n", __func__)
74 #define NVTRACE_LEAVE(...) NVTRACE("%s END\n", __func__)
75
76 #ifdef CONFIG_FB_RIVA_DEBUG
77 #define assert(expr) \
78 if(!(expr)) { \
79 printk( "Assertion failed! %s,%s,%s,line=%d\n",\
80 #expr,__FILE__,__func__,__LINE__); \
81 BUG(); \
82 }
83 #else
84 #define assert(expr)
85 #endif
86
87 #define PFX "rivafb: "
88
89 /* macro that allows you to set overflow bits */
90 #define SetBitField(value,from,to) SetBF(to,GetBF(value,from))
91 #define SetBit(n) (1<<(n))
92 #define Set8Bits(value) ((value)&0xff)
93
94 /* HW cursor parameters */
95 #define MAX_CURS 32
96
97 /* ------------------------------------------------------------------------- *
98 *
99 * prototypes
100 *
101 * ------------------------------------------------------------------------- */
102
103 static int rivafb_blank(int blank, struct fb_info *info);
104
105 /* ------------------------------------------------------------------------- *
106 *
107 * card identification
108 *
109 * ------------------------------------------------------------------------- */
110
111 static struct pci_device_id rivafb_pci_tbl[] = {
112 { PCI_VENDOR_ID_NVIDIA_SGS, PCI_DEVICE_ID_NVIDIA_SGS_RIVA128,
113 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
114 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT,
115 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
116 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT2,
117 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
118 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UTNT2,
119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
120 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_VTNT2,
121 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
122 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UVTNT2,
123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
124 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_ITNT2,
125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
126 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR,
127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
128 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR,
129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
130 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO,
131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
132 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX,
133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
134 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2,
135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
136 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO,
137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
138 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR,
139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
140 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS,
141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
142 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2,
143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
144 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA,
145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
146 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO,
147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
148 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460,
149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
150 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440,
151 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
152 // NF2/IGP version, GeForce 4 MX, NV18
153 { PCI_VENDOR_ID_NVIDIA, 0x01f0,
154 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
155 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420,
156 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
157 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO,
158 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
159 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO,
160 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
161 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32,
162 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
163 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL,
164 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
165 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64,
166 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
167 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_200,
168 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
169 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL,
170 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
171 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL,
172 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
173 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_IGEFORCE2,
174 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
175 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3,
176 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
177 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_1,
178 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
179 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_2,
180 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
181 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_DDC,
182 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
183 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600,
184 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
185 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400,
186 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
187 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200,
188 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
189 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL,
190 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
191 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL,
192 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
193 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL,
194 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
195 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO_5200,
196 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
197 { 0, } /* terminate list */
198 };
199 MODULE_DEVICE_TABLE(pci, rivafb_pci_tbl);
200
201 /* ------------------------------------------------------------------------- *
202 *
203 * global variables
204 *
205 * ------------------------------------------------------------------------- */
206
207 /* command line data, set in rivafb_setup() */
208 static int flatpanel __devinitdata = -1; /* Autodetect later */
209 static int forceCRTC __devinitdata = -1;
210 static int noaccel __devinitdata = 0;
211 #ifdef CONFIG_MTRR
212 static int nomtrr __devinitdata = 0;
213 #endif
214 #ifdef CONFIG_PMAC_BACKLIGHT
215 static int backlight __devinitdata = 1;
216 #else
217 static int backlight __devinitdata = 0;
218 #endif
219
220 static char *mode_option __devinitdata = NULL;
221 static int strictmode = 0;
222
223 static struct fb_fix_screeninfo __devinitdata rivafb_fix = {
224 .type = FB_TYPE_PACKED_PIXELS,
225 .xpanstep = 1,
226 .ypanstep = 1,
227 };
228
229 static struct fb_var_screeninfo __devinitdata rivafb_default_var = {
230 .xres = 640,
231 .yres = 480,
232 .xres_virtual = 640,
233 .yres_virtual = 480,
234 .bits_per_pixel = 8,
235 .red = {0, 8, 0},
236 .green = {0, 8, 0},
237 .blue = {0, 8, 0},
238 .transp = {0, 0, 0},
239 .activate = FB_ACTIVATE_NOW,
240 .height = -1,
241 .width = -1,
242 .pixclock = 39721,
243 .left_margin = 40,
244 .right_margin = 24,
245 .upper_margin = 32,
246 .lower_margin = 11,
247 .hsync_len = 96,
248 .vsync_len = 2,
249 .vmode = FB_VMODE_NONINTERLACED
250 };
251
252 /* from GGI */
253 static const struct riva_regs reg_template = {
254 {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ATTR */
255 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
256 0x41, 0x01, 0x0F, 0x00, 0x00},
257 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* CRT */
258 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00,
259 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, /* 0x10 */
260 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
261 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20 */
262 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
263 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30 */
264 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
265 0x00, /* 0x40 */
266 },
267 {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, /* GRA */
268 0xFF},
269 {0x03, 0x01, 0x0F, 0x00, 0x0E}, /* SEQ */
270 0xEB /* MISC */
271 };
272
273 /*
274 * Backlight control
275 */
276 #ifdef CONFIG_FB_RIVA_BACKLIGHT
277 /* We do not have any information about which values are allowed, thus
278 * we used safe values.
279 */
280 #define MIN_LEVEL 0x158
281 #define MAX_LEVEL 0x534
282 #define LEVEL_STEP ((MAX_LEVEL - MIN_LEVEL) / FB_BACKLIGHT_MAX)
283
284 static int riva_bl_get_level_brightness(struct riva_par *par,
285 int level)
286 {
287 struct fb_info *info = pci_get_drvdata(par->pdev);
288 int nlevel;
289
290 /* Get and convert the value */
291 /* No locking on bl_curve since accessing a single value */
292 nlevel = MIN_LEVEL + info->bl_curve[level] * LEVEL_STEP;
293
294 if (nlevel < 0)
295 nlevel = 0;
296 else if (nlevel < MIN_LEVEL)
297 nlevel = MIN_LEVEL;
298 else if (nlevel > MAX_LEVEL)
299 nlevel = MAX_LEVEL;
300
301 return nlevel;
302 }
303
304 static int riva_bl_update_status(struct backlight_device *bd)
305 {
306 struct riva_par *par = bl_get_data(bd);
307 U032 tmp_pcrt, tmp_pmc;
308 int level;
309
310 if (bd->props.power != FB_BLANK_UNBLANK ||
311 bd->props.fb_blank != FB_BLANK_UNBLANK)
312 level = 0;
313 else
314 level = bd->props.brightness;
315
316 tmp_pmc = NV_RD32(par->riva.PMC, 0x10F0) & 0x0000FFFF;
317 tmp_pcrt = NV_RD32(par->riva.PCRTC0, 0x081C) & 0xFFFFFFFC;
318 if(level > 0) {
319 tmp_pcrt |= 0x1;
320 tmp_pmc |= (1 << 31); /* backlight bit */
321 tmp_pmc |= riva_bl_get_level_brightness(par, level) << 16; /* level */
322 }
323 NV_WR32(par->riva.PCRTC0, 0x081C, tmp_pcrt);
324 NV_WR32(par->riva.PMC, 0x10F0, tmp_pmc);
325
326 return 0;
327 }
328
329 static int riva_bl_get_brightness(struct backlight_device *bd)
330 {
331 return bd->props.brightness;
332 }
333
334 static struct backlight_ops riva_bl_ops = {
335 .get_brightness = riva_bl_get_brightness,
336 .update_status = riva_bl_update_status,
337 };
338
339 static void riva_bl_init(struct riva_par *par)
340 {
341 struct fb_info *info = pci_get_drvdata(par->pdev);
342 struct backlight_device *bd;
343 char name[12];
344
345 if (!par->FlatPanel)
346 return;
347
348 #ifdef CONFIG_PMAC_BACKLIGHT
349 if (!machine_is(powermac) ||
350 !pmac_has_backlight_type("mnca"))
351 return;
352 #endif
353
354 snprintf(name, sizeof(name), "rivabl%d", info->node);
355
356 bd = backlight_device_register(name, info->dev, par, &riva_bl_ops);
357 if (IS_ERR(bd)) {
358 info->bl_dev = NULL;
359 printk(KERN_WARNING "riva: Backlight registration failed\n");
360 goto error;
361 }
362
363 info->bl_dev = bd;
364 fb_bl_default_curve(info, 0,
365 MIN_LEVEL * FB_BACKLIGHT_MAX / MAX_LEVEL,
366 FB_BACKLIGHT_MAX);
367
368 bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
369 bd->props.brightness = bd->props.max_brightness;
370 bd->props.power = FB_BLANK_UNBLANK;
371 backlight_update_status(bd);
372
373 printk("riva: Backlight initialized (%s)\n", name);
374
375 return;
376
377 error:
378 return;
379 }
380
381 static void riva_bl_exit(struct fb_info *info)
382 {
383 struct backlight_device *bd = info->bl_dev;
384
385 backlight_device_unregister(bd);
386 printk("riva: Backlight unloaded\n");
387 }
388 #else
389 static inline void riva_bl_init(struct riva_par *par) {}
390 static inline void riva_bl_exit(struct fb_info *info) {}
391 #endif /* CONFIG_FB_RIVA_BACKLIGHT */
392
393 /* ------------------------------------------------------------------------- *
394 *
395 * MMIO access macros
396 *
397 * ------------------------------------------------------------------------- */
398
399 static inline void CRTCout(struct riva_par *par, unsigned char index,
400 unsigned char val)
401 {
402 VGA_WR08(par->riva.PCIO, 0x3d4, index);
403 VGA_WR08(par->riva.PCIO, 0x3d5, val);
404 }
405
406 static inline unsigned char CRTCin(struct riva_par *par,
407 unsigned char index)
408 {
409 VGA_WR08(par->riva.PCIO, 0x3d4, index);
410 return (VGA_RD08(par->riva.PCIO, 0x3d5));
411 }
412
413 static inline void GRAout(struct riva_par *par, unsigned char index,
414 unsigned char val)
415 {
416 VGA_WR08(par->riva.PVIO, 0x3ce, index);
417 VGA_WR08(par->riva.PVIO, 0x3cf, val);
418 }
419
420 static inline unsigned char GRAin(struct riva_par *par,
421 unsigned char index)
422 {
423 VGA_WR08(par->riva.PVIO, 0x3ce, index);
424 return (VGA_RD08(par->riva.PVIO, 0x3cf));
425 }
426
427 static inline void SEQout(struct riva_par *par, unsigned char index,
428 unsigned char val)
429 {
430 VGA_WR08(par->riva.PVIO, 0x3c4, index);
431 VGA_WR08(par->riva.PVIO, 0x3c5, val);
432 }
433
434 static inline unsigned char SEQin(struct riva_par *par,
435 unsigned char index)
436 {
437 VGA_WR08(par->riva.PVIO, 0x3c4, index);
438 return (VGA_RD08(par->riva.PVIO, 0x3c5));
439 }
440
441 static inline void ATTRout(struct riva_par *par, unsigned char index,
442 unsigned char val)
443 {
444 VGA_WR08(par->riva.PCIO, 0x3c0, index);
445 VGA_WR08(par->riva.PCIO, 0x3c0, val);
446 }
447
448 static inline unsigned char ATTRin(struct riva_par *par,
449 unsigned char index)
450 {
451 VGA_WR08(par->riva.PCIO, 0x3c0, index);
452 return (VGA_RD08(par->riva.PCIO, 0x3c1));
453 }
454
455 static inline void MISCout(struct riva_par *par, unsigned char val)
456 {
457 VGA_WR08(par->riva.PVIO, 0x3c2, val);
458 }
459
460 static inline unsigned char MISCin(struct riva_par *par)
461 {
462 return (VGA_RD08(par->riva.PVIO, 0x3cc));
463 }
464
465 static inline void reverse_order(u32 *l)
466 {
467 u8 *a = (u8 *)l;
468 a[0] = bitrev8(a[0]);
469 a[1] = bitrev8(a[1]);
470 a[2] = bitrev8(a[2]);
471 a[3] = bitrev8(a[3]);
472 }
473
474 /* ------------------------------------------------------------------------- *
475 *
476 * cursor stuff
477 *
478 * ------------------------------------------------------------------------- */
479
480 /**
481 * rivafb_load_cursor_image - load cursor image to hardware
482 * @data: address to monochrome bitmap (1 = foreground color, 0 = background)
483 * @par: pointer to private data
484 * @w: width of cursor image in pixels
485 * @h: height of cursor image in scanlines
486 * @bg: background color (ARGB1555) - alpha bit determines opacity
487 * @fg: foreground color (ARGB1555)
488 *
489 * DESCRIPTiON:
490 * Loads cursor image based on a monochrome source and mask bitmap. The
491 * image bits determines the color of the pixel, 0 for background, 1 for
492 * foreground. Only the affected region (as determined by @w and @h
493 * parameters) will be updated.
494 *
495 * CALLED FROM:
496 * rivafb_cursor()
497 */
498 static void rivafb_load_cursor_image(struct riva_par *par, u8 *data8,
499 u16 bg, u16 fg, u32 w, u32 h)
500 {
501 int i, j, k = 0;
502 u32 b, tmp;
503 u32 *data = (u32 *)data8;
504 bg = le16_to_cpu(bg);
505 fg = le16_to_cpu(fg);
506
507 w = (w + 1) & ~1;
508
509 for (i = 0; i < h; i++) {
510 b = *data++;
511 reverse_order(&b);
512
513 for (j = 0; j < w/2; j++) {
514 tmp = 0;
515 #if defined (__BIG_ENDIAN)
516 tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
517 b <<= 1;
518 tmp |= (b & (1 << 31)) ? fg : bg;
519 b <<= 1;
520 #else
521 tmp = (b & 1) ? fg : bg;
522 b >>= 1;
523 tmp |= (b & 1) ? fg << 16 : bg << 16;
524 b >>= 1;
525 #endif
526 writel(tmp, &par->riva.CURSOR[k++]);
527 }
528 k += (MAX_CURS - w)/2;
529 }
530 }
531
532 /* ------------------------------------------------------------------------- *
533 *
534 * general utility functions
535 *
536 * ------------------------------------------------------------------------- */
537
538 /**
539 * riva_wclut - set CLUT entry
540 * @chip: pointer to RIVA_HW_INST object
541 * @regnum: register number
542 * @red: red component
543 * @green: green component
544 * @blue: blue component
545 *
546 * DESCRIPTION:
547 * Sets color register @regnum.
548 *
549 * CALLED FROM:
550 * rivafb_setcolreg()
551 */
552 static void riva_wclut(RIVA_HW_INST *chip,
553 unsigned char regnum, unsigned char red,
554 unsigned char green, unsigned char blue)
555 {
556 VGA_WR08(chip->PDIO, 0x3c8, regnum);
557 VGA_WR08(chip->PDIO, 0x3c9, red);
558 VGA_WR08(chip->PDIO, 0x3c9, green);
559 VGA_WR08(chip->PDIO, 0x3c9, blue);
560 }
561
562 /**
563 * riva_rclut - read fromCLUT register
564 * @chip: pointer to RIVA_HW_INST object
565 * @regnum: register number
566 * @red: red component
567 * @green: green component
568 * @blue: blue component
569 *
570 * DESCRIPTION:
571 * Reads red, green, and blue from color register @regnum.
572 *
573 * CALLED FROM:
574 * rivafb_setcolreg()
575 */
576 static void riva_rclut(RIVA_HW_INST *chip,
577 unsigned char regnum, unsigned char *red,
578 unsigned char *green, unsigned char *blue)
579 {
580
581 VGA_WR08(chip->PDIO, 0x3c7, regnum);
582 *red = VGA_RD08(chip->PDIO, 0x3c9);
583 *green = VGA_RD08(chip->PDIO, 0x3c9);
584 *blue = VGA_RD08(chip->PDIO, 0x3c9);
585 }
586
587 /**
588 * riva_save_state - saves current chip state
589 * @par: pointer to riva_par object containing info for current riva board
590 * @regs: pointer to riva_regs object
591 *
592 * DESCRIPTION:
593 * Saves current chip state to @regs.
594 *
595 * CALLED FROM:
596 * rivafb_probe()
597 */
598 /* from GGI */
599 static void riva_save_state(struct riva_par *par, struct riva_regs *regs)
600 {
601 int i;
602
603 NVTRACE_ENTER();
604 par->riva.LockUnlock(&par->riva, 0);
605
606 par->riva.UnloadStateExt(&par->riva, &regs->ext);
607
608 regs->misc_output = MISCin(par);
609
610 for (i = 0; i < NUM_CRT_REGS; i++)
611 regs->crtc[i] = CRTCin(par, i);
612
613 for (i = 0; i < NUM_ATC_REGS; i++)
614 regs->attr[i] = ATTRin(par, i);
615
616 for (i = 0; i < NUM_GRC_REGS; i++)
617 regs->gra[i] = GRAin(par, i);
618
619 for (i = 0; i < NUM_SEQ_REGS; i++)
620 regs->seq[i] = SEQin(par, i);
621 NVTRACE_LEAVE();
622 }
623
624 /**
625 * riva_load_state - loads current chip state
626 * @par: pointer to riva_par object containing info for current riva board
627 * @regs: pointer to riva_regs object
628 *
629 * DESCRIPTION:
630 * Loads chip state from @regs.
631 *
632 * CALLED FROM:
633 * riva_load_video_mode()
634 * rivafb_probe()
635 * rivafb_remove()
636 */
637 /* from GGI */
638 static void riva_load_state(struct riva_par *par, struct riva_regs *regs)
639 {
640 RIVA_HW_STATE *state = &regs->ext;
641 int i;
642
643 NVTRACE_ENTER();
644 CRTCout(par, 0x11, 0x00);
645
646 par->riva.LockUnlock(&par->riva, 0);
647
648 par->riva.LoadStateExt(&par->riva, state);
649
650 MISCout(par, regs->misc_output);
651
652 for (i = 0; i < NUM_CRT_REGS; i++) {
653 switch (i) {
654 case 0x19:
655 case 0x20 ... 0x40:
656 break;
657 default:
658 CRTCout(par, i, regs->crtc[i]);
659 }
660 }
661
662 for (i = 0; i < NUM_ATC_REGS; i++)
663 ATTRout(par, i, regs->attr[i]);
664
665 for (i = 0; i < NUM_GRC_REGS; i++)
666 GRAout(par, i, regs->gra[i]);
667
668 for (i = 0; i < NUM_SEQ_REGS; i++)
669 SEQout(par, i, regs->seq[i]);
670 NVTRACE_LEAVE();
671 }
672
673 /**
674 * riva_load_video_mode - calculate timings
675 * @info: pointer to fb_info object containing info for current riva board
676 *
677 * DESCRIPTION:
678 * Calculate some timings and then send em off to riva_load_state().
679 *
680 * CALLED FROM:
681 * rivafb_set_par()
682 */
683 static int riva_load_video_mode(struct fb_info *info)
684 {
685 int bpp, width, hDisplaySize, hDisplay, hStart,
686 hEnd, hTotal, height, vDisplay, vStart, vEnd, vTotal, dotClock;
687 int hBlankStart, hBlankEnd, vBlankStart, vBlankEnd;
688 int rc;
689 struct riva_par *par = info->par;
690 struct riva_regs newmode;
691
692 NVTRACE_ENTER();
693 /* time to calculate */
694 rivafb_blank(FB_BLANK_NORMAL, info);
695
696 bpp = info->var.bits_per_pixel;
697 if (bpp == 16 && info->var.green.length == 5)
698 bpp = 15;
699 width = info->var.xres_virtual;
700 hDisplaySize = info->var.xres;
701 hDisplay = (hDisplaySize / 8) - 1;
702 hStart = (hDisplaySize + info->var.right_margin) / 8 - 1;
703 hEnd = (hDisplaySize + info->var.right_margin +
704 info->var.hsync_len) / 8 - 1;
705 hTotal = (hDisplaySize + info->var.right_margin +
706 info->var.hsync_len + info->var.left_margin) / 8 - 5;
707 hBlankStart = hDisplay;
708 hBlankEnd = hTotal + 4;
709
710 height = info->var.yres_virtual;
711 vDisplay = info->var.yres - 1;
712 vStart = info->var.yres + info->var.lower_margin - 1;
713 vEnd = info->var.yres + info->var.lower_margin +
714 info->var.vsync_len - 1;
715 vTotal = info->var.yres + info->var.lower_margin +
716 info->var.vsync_len + info->var.upper_margin + 2;
717 vBlankStart = vDisplay;
718 vBlankEnd = vTotal + 1;
719 dotClock = 1000000000 / info->var.pixclock;
720
721 memcpy(&newmode, &reg_template, sizeof(struct riva_regs));
722
723 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
724 vTotal |= 1;
725
726 if (par->FlatPanel) {
727 vStart = vTotal - 3;
728 vEnd = vTotal - 2;
729 vBlankStart = vStart;
730 hStart = hTotal - 3;
731 hEnd = hTotal - 2;
732 hBlankEnd = hTotal + 4;
733 }
734
735 newmode.crtc[0x0] = Set8Bits (hTotal);
736 newmode.crtc[0x1] = Set8Bits (hDisplay);
737 newmode.crtc[0x2] = Set8Bits (hBlankStart);
738 newmode.crtc[0x3] = SetBitField (hBlankEnd, 4: 0, 4:0) | SetBit (7);
739 newmode.crtc[0x4] = Set8Bits (hStart);
740 newmode.crtc[0x5] = SetBitField (hBlankEnd, 5: 5, 7:7)
741 | SetBitField (hEnd, 4: 0, 4:0);
742 newmode.crtc[0x6] = SetBitField (vTotal, 7: 0, 7:0);
743 newmode.crtc[0x7] = SetBitField (vTotal, 8: 8, 0:0)
744 | SetBitField (vDisplay, 8: 8, 1:1)
745 | SetBitField (vStart, 8: 8, 2:2)
746 | SetBitField (vBlankStart, 8: 8, 3:3)
747 | SetBit (4)
748 | SetBitField (vTotal, 9: 9, 5:5)
749 | SetBitField (vDisplay, 9: 9, 6:6)
750 | SetBitField (vStart, 9: 9, 7:7);
751 newmode.crtc[0x9] = SetBitField (vBlankStart, 9: 9, 5:5)
752 | SetBit (6);
753 newmode.crtc[0x10] = Set8Bits (vStart);
754 newmode.crtc[0x11] = SetBitField (vEnd, 3: 0, 3:0)
755 | SetBit (5);
756 newmode.crtc[0x12] = Set8Bits (vDisplay);
757 newmode.crtc[0x13] = (width / 8) * ((bpp + 1) / 8);
758 newmode.crtc[0x15] = Set8Bits (vBlankStart);
759 newmode.crtc[0x16] = Set8Bits (vBlankEnd);
760
761 newmode.ext.screen = SetBitField(hBlankEnd,6:6,4:4)
762 | SetBitField(vBlankStart,10:10,3:3)
763 | SetBitField(vStart,10:10,2:2)
764 | SetBitField(vDisplay,10:10,1:1)
765 | SetBitField(vTotal,10:10,0:0);
766 newmode.ext.horiz = SetBitField(hTotal,8:8,0:0)
767 | SetBitField(hDisplay,8:8,1:1)
768 | SetBitField(hBlankStart,8:8,2:2)
769 | SetBitField(hStart,8:8,3:3);
770 newmode.ext.extra = SetBitField(vTotal,11:11,0:0)
771 | SetBitField(vDisplay,11:11,2:2)
772 | SetBitField(vStart,11:11,4:4)
773 | SetBitField(vBlankStart,11:11,6:6);
774
775 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
776 int tmp = (hTotal >> 1) & ~1;
777 newmode.ext.interlace = Set8Bits(tmp);
778 newmode.ext.horiz |= SetBitField(tmp, 8:8,4:4);
779 } else
780 newmode.ext.interlace = 0xff; /* interlace off */
781
782 if (par->riva.Architecture >= NV_ARCH_10)
783 par->riva.CURSOR = (U032 __iomem *)(info->screen_base + par->riva.CursorStart);
784
785 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
786 newmode.misc_output &= ~0x40;
787 else
788 newmode.misc_output |= 0x40;
789 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
790 newmode.misc_output &= ~0x80;
791 else
792 newmode.misc_output |= 0x80;
793
794 rc = CalcStateExt(&par->riva, &newmode.ext, bpp, width,
795 hDisplaySize, height, dotClock);
796 if (rc)
797 goto out;
798
799 newmode.ext.scale = NV_RD32(par->riva.PRAMDAC, 0x00000848) &
800 0xfff000ff;
801 if (par->FlatPanel == 1) {
802 newmode.ext.pixel |= (1 << 7);
803 newmode.ext.scale |= (1 << 8);
804 }
805 if (par->SecondCRTC) {
806 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) &
807 ~0x00001000;
808 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) |
809 0x00001000;
810 newmode.ext.crtcOwner = 3;
811 newmode.ext.pllsel |= 0x20000800;
812 newmode.ext.vpll2 = newmode.ext.vpll;
813 } else if (par->riva.twoHeads) {
814 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) |
815 0x00001000;
816 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) &
817 ~0x00001000;
818 newmode.ext.crtcOwner = 0;
819 newmode.ext.vpll2 = NV_RD32(par->riva.PRAMDAC0, 0x00000520);
820 }
821 if (par->FlatPanel == 1) {
822 newmode.ext.pixel |= (1 << 7);
823 newmode.ext.scale |= (1 << 8);
824 }
825 newmode.ext.cursorConfig = 0x02000100;
826 par->current_state = newmode;
827 riva_load_state(par, &par->current_state);
828 par->riva.LockUnlock(&par->riva, 0); /* important for HW cursor */
829
830 out:
831 rivafb_blank(FB_BLANK_UNBLANK, info);
832 NVTRACE_LEAVE();
833
834 return rc;
835 }
836
837 static void riva_update_var(struct fb_var_screeninfo *var,
838 const struct fb_videomode *modedb)
839 {
840 NVTRACE_ENTER();
841 var->xres = var->xres_virtual = modedb->xres;
842 var->yres = modedb->yres;
843 if (var->yres_virtual < var->yres)
844 var->yres_virtual = var->yres;
845 var->xoffset = var->yoffset = 0;
846 var->pixclock = modedb->pixclock;
847 var->left_margin = modedb->left_margin;
848 var->right_margin = modedb->right_margin;
849 var->upper_margin = modedb->upper_margin;
850 var->lower_margin = modedb->lower_margin;
851 var->hsync_len = modedb->hsync_len;
852 var->vsync_len = modedb->vsync_len;
853 var->sync = modedb->sync;
854 var->vmode = modedb->vmode;
855 NVTRACE_LEAVE();
856 }
857
858 /**
859 * rivafb_do_maximize -
860 * @info: pointer to fb_info object containing info for current riva board
861 * @var:
862 * @nom:
863 * @den:
864 *
865 * DESCRIPTION:
866 * .
867 *
868 * RETURNS:
869 * -EINVAL on failure, 0 on success
870 *
871 *
872 * CALLED FROM:
873 * rivafb_check_var()
874 */
875 static int rivafb_do_maximize(struct fb_info *info,
876 struct fb_var_screeninfo *var,
877 int nom, int den)
878 {
879 static struct {
880 int xres, yres;
881 } modes[] = {
882 {1600, 1280},
883 {1280, 1024},
884 {1024, 768},
885 {800, 600},
886 {640, 480},
887 {-1, -1}
888 };
889 int i;
890
891 NVTRACE_ENTER();
892 /* use highest possible virtual resolution */
893 if (var->xres_virtual == -1 && var->yres_virtual == -1) {
894 printk(KERN_WARNING PFX
895 "using maximum available virtual resolution\n");
896 for (i = 0; modes[i].xres != -1; i++) {
897 if (modes[i].xres * nom / den * modes[i].yres <
898 info->fix.smem_len)
899 break;
900 }
901 if (modes[i].xres == -1) {
902 printk(KERN_ERR PFX
903 "could not find a virtual resolution that fits into video memory!!\n");
904 NVTRACE("EXIT - EINVAL error\n");
905 return -EINVAL;
906 }
907 var->xres_virtual = modes[i].xres;
908 var->yres_virtual = modes[i].yres;
909
910 printk(KERN_INFO PFX
911 "virtual resolution set to maximum of %dx%d\n",
912 var->xres_virtual, var->yres_virtual);
913 } else if (var->xres_virtual == -1) {
914 var->xres_virtual = (info->fix.smem_len * den /
915 (nom * var->yres_virtual)) & ~15;
916 printk(KERN_WARNING PFX
917 "setting virtual X resolution to %d\n", var->xres_virtual);
918 } else if (var->yres_virtual == -1) {
919 var->xres_virtual = (var->xres_virtual + 15) & ~15;
920 var->yres_virtual = info->fix.smem_len * den /
921 (nom * var->xres_virtual);
922 printk(KERN_WARNING PFX
923 "setting virtual Y resolution to %d\n", var->yres_virtual);
924 } else {
925 var->xres_virtual = (var->xres_virtual + 15) & ~15;
926 if (var->xres_virtual * nom / den * var->yres_virtual > info->fix.smem_len) {
927 printk(KERN_ERR PFX
928 "mode %dx%dx%d rejected...resolution too high to fit into video memory!\n",
929 var->xres, var->yres, var->bits_per_pixel);
930 NVTRACE("EXIT - EINVAL error\n");
931 return -EINVAL;
932 }
933 }
934
935 if (var->xres_virtual * nom / den >= 8192) {
936 printk(KERN_WARNING PFX
937 "virtual X resolution (%d) is too high, lowering to %d\n",
938 var->xres_virtual, 8192 * den / nom - 16);
939 var->xres_virtual = 8192 * den / nom - 16;
940 }
941
942 if (var->xres_virtual < var->xres) {
943 printk(KERN_ERR PFX
944 "virtual X resolution (%d) is smaller than real\n", var->xres_virtual);
945 return -EINVAL;
946 }
947
948 if (var->yres_virtual < var->yres) {
949 printk(KERN_ERR PFX
950 "virtual Y resolution (%d) is smaller than real\n", var->yres_virtual);
951 return -EINVAL;
952 }
953 if (var->yres_virtual > 0x7fff/nom)
954 var->yres_virtual = 0x7fff/nom;
955 if (var->xres_virtual > 0x7fff/nom)
956 var->xres_virtual = 0x7fff/nom;
957 NVTRACE_LEAVE();
958 return 0;
959 }
960
961 static void
962 riva_set_pattern(struct riva_par *par, int clr0, int clr1, int pat0, int pat1)
963 {
964 RIVA_FIFO_FREE(par->riva, Patt, 4);
965 NV_WR32(&par->riva.Patt->Color0, 0, clr0);
966 NV_WR32(&par->riva.Patt->Color1, 0, clr1);
967 NV_WR32(par->riva.Patt->Monochrome, 0, pat0);
968 NV_WR32(par->riva.Patt->Monochrome, 4, pat1);
969 }
970
971 /* acceleration routines */
972 static inline void wait_for_idle(struct riva_par *par)
973 {
974 while (par->riva.Busy(&par->riva));
975 }
976
977 /*
978 * Set ROP. Translate X rop into ROP3. Internal routine.
979 */
980 static void
981 riva_set_rop_solid(struct riva_par *par, int rop)
982 {
983 riva_set_pattern(par, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
984 RIVA_FIFO_FREE(par->riva, Rop, 1);
985 NV_WR32(&par->riva.Rop->Rop3, 0, rop);
986
987 }
988
989 static void riva_setup_accel(struct fb_info *info)
990 {
991 struct riva_par *par = info->par;
992
993 RIVA_FIFO_FREE(par->riva, Clip, 2);
994 NV_WR32(&par->riva.Clip->TopLeft, 0, 0x0);
995 NV_WR32(&par->riva.Clip->WidthHeight, 0,
996 (info->var.xres_virtual & 0xffff) |
997 (info->var.yres_virtual << 16));
998 riva_set_rop_solid(par, 0xcc);
999 wait_for_idle(par);
1000 }
1001
1002 /**
1003 * riva_get_cmap_len - query current color map length
1004 * @var: standard kernel fb changeable data
1005 *
1006 * DESCRIPTION:
1007 * Get current color map length.
1008 *
1009 * RETURNS:
1010 * Length of color map
1011 *
1012 * CALLED FROM:
1013 * rivafb_setcolreg()
1014 */
1015 static int riva_get_cmap_len(const struct fb_var_screeninfo *var)
1016 {
1017 int rc = 256; /* reasonable default */
1018
1019 switch (var->green.length) {
1020 case 8:
1021 rc = 256; /* 256 entries (2^8), 8 bpp and RGB8888 */
1022 break;
1023 case 5:
1024 rc = 32; /* 32 entries (2^5), 16 bpp, RGB555 */
1025 break;
1026 case 6:
1027 rc = 64; /* 64 entries (2^6), 16 bpp, RGB565 */
1028 break;
1029 default:
1030 /* should not occur */
1031 break;
1032 }
1033 return rc;
1034 }
1035
1036 /* ------------------------------------------------------------------------- *
1037 *
1038 * framebuffer operations
1039 *
1040 * ------------------------------------------------------------------------- */
1041
1042 static int rivafb_open(struct fb_info *info, int user)
1043 {
1044 struct riva_par *par = info->par;
1045
1046 NVTRACE_ENTER();
1047 mutex_lock(&par->open_lock);
1048 if (!par->ref_count) {
1049 #ifdef CONFIG_X86
1050 memset(&par->state, 0, sizeof(struct vgastate));
1051 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
1052 /* save the DAC for Riva128 */
1053 if (par->riva.Architecture == NV_ARCH_03)
1054 par->state.flags |= VGA_SAVE_CMAP;
1055 save_vga(&par->state);
1056 #endif
1057 /* vgaHWunlock() + riva unlock (0x7F) */
1058 CRTCout(par, 0x11, 0xFF);
1059 par->riva.LockUnlock(&par->riva, 0);
1060
1061 riva_save_state(par, &par->initial_state);
1062 }
1063 par->ref_count++;
1064 mutex_unlock(&par->open_lock);
1065 NVTRACE_LEAVE();
1066 return 0;
1067 }
1068
1069 static int rivafb_release(struct fb_info *info, int user)
1070 {
1071 struct riva_par *par = info->par;
1072
1073 NVTRACE_ENTER();
1074 mutex_lock(&par->open_lock);
1075 if (!par->ref_count) {
1076 mutex_unlock(&par->open_lock);
1077 return -EINVAL;
1078 }
1079 if (par->ref_count == 1) {
1080 par->riva.LockUnlock(&par->riva, 0);
1081 par->riva.LoadStateExt(&par->riva, &par->initial_state.ext);
1082 riva_load_state(par, &par->initial_state);
1083 #ifdef CONFIG_X86
1084 restore_vga(&par->state);
1085 #endif
1086 par->riva.LockUnlock(&par->riva, 1);
1087 }
1088 par->ref_count--;
1089 mutex_unlock(&par->open_lock);
1090 NVTRACE_LEAVE();
1091 return 0;
1092 }
1093
1094 static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1095 {
1096 const struct fb_videomode *mode;
1097 struct riva_par *par = info->par;
1098 int nom, den; /* translating from pixels->bytes */
1099 int mode_valid = 0;
1100
1101 NVTRACE_ENTER();
1102 switch (var->bits_per_pixel) {
1103 case 1 ... 8:
1104 var->red.offset = var->green.offset = var->blue.offset = 0;
1105 var->red.length = var->green.length = var->blue.length = 8;
1106 var->bits_per_pixel = 8;
1107 nom = den = 1;
1108 break;
1109 case 9 ... 15:
1110 var->green.length = 5;
1111 /* fall through */
1112 case 16:
1113 var->bits_per_pixel = 16;
1114 /* The Riva128 supports RGB555 only */
1115 if (par->riva.Architecture == NV_ARCH_03)
1116 var->green.length = 5;
1117 if (var->green.length == 5) {
1118 /* 0rrrrrgg gggbbbbb */
1119 var->red.offset = 10;
1120 var->green.offset = 5;
1121 var->blue.offset = 0;
1122 var->red.length = 5;
1123 var->green.length = 5;
1124 var->blue.length = 5;
1125 } else {
1126 /* rrrrrggg gggbbbbb */
1127 var->red.offset = 11;
1128 var->green.offset = 5;
1129 var->blue.offset = 0;
1130 var->red.length = 5;
1131 var->green.length = 6;
1132 var->blue.length = 5;
1133 }
1134 nom = 2;
1135 den = 1;
1136 break;
1137 case 17 ... 32:
1138 var->red.length = var->green.length = var->blue.length = 8;
1139 var->bits_per_pixel = 32;
1140 var->red.offset = 16;
1141 var->green.offset = 8;
1142 var->blue.offset = 0;
1143 nom = 4;
1144 den = 1;
1145 break;
1146 default:
1147 printk(KERN_ERR PFX
1148 "mode %dx%dx%d rejected...color depth not supported.\n",
1149 var->xres, var->yres, var->bits_per_pixel);
1150 NVTRACE("EXIT, returning -EINVAL\n");
1151 return -EINVAL;
1152 }
1153
1154 if (!strictmode) {
1155 if (!info->monspecs.vfmax || !info->monspecs.hfmax ||
1156 !info->monspecs.dclkmax || !fb_validate_mode(var, info))
1157 mode_valid = 1;
1158 }
1159
1160 /* calculate modeline if supported by monitor */
1161 if (!mode_valid && info->monspecs.gtf) {
1162 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
1163 mode_valid = 1;
1164 }
1165
1166 if (!mode_valid) {
1167 mode = fb_find_best_mode(var, &info->modelist);
1168 if (mode) {
1169 riva_update_var(var, mode);
1170 mode_valid = 1;
1171 }
1172 }
1173
1174 if (!mode_valid && info->monspecs.modedb_len)
1175 return -EINVAL;
1176
1177 if (var->xres_virtual < var->xres)
1178 var->xres_virtual = var->xres;
1179 if (var->yres_virtual <= var->yres)
1180 var->yres_virtual = -1;
1181 if (rivafb_do_maximize(info, var, nom, den) < 0)
1182 return -EINVAL;
1183
1184 if (var->xoffset < 0)
1185 var->xoffset = 0;
1186 if (var->yoffset < 0)
1187 var->yoffset = 0;
1188
1189 /* truncate xoffset and yoffset to maximum if too high */
1190 if (var->xoffset > var->xres_virtual - var->xres)
1191 var->xoffset = var->xres_virtual - var->xres - 1;
1192
1193 if (var->yoffset > var->yres_virtual - var->yres)
1194 var->yoffset = var->yres_virtual - var->yres - 1;
1195
1196 var->red.msb_right =
1197 var->green.msb_right =
1198 var->blue.msb_right =
1199 var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1200 NVTRACE_LEAVE();
1201 return 0;
1202 }
1203
1204 static int rivafb_set_par(struct fb_info *info)
1205 {
1206 struct riva_par *par = info->par;
1207 int rc = 0;
1208
1209 NVTRACE_ENTER();
1210 /* vgaHWunlock() + riva unlock (0x7F) */
1211 CRTCout(par, 0x11, 0xFF);
1212 par->riva.LockUnlock(&par->riva, 0);
1213 rc = riva_load_video_mode(info);
1214 if (rc)
1215 goto out;
1216 if(!(info->flags & FBINFO_HWACCEL_DISABLED))
1217 riva_setup_accel(info);
1218
1219 par->cursor_reset = 1;
1220 info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3));
1221 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1222 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1223
1224 if (info->flags & FBINFO_HWACCEL_DISABLED)
1225 info->pixmap.scan_align = 1;
1226 else
1227 info->pixmap.scan_align = 4;
1228
1229 out:
1230 NVTRACE_LEAVE();
1231 return rc;
1232 }
1233
1234 /**
1235 * rivafb_pan_display
1236 * @var: standard kernel fb changeable data
1237 * @con: TODO
1238 * @info: pointer to fb_info object containing info for current riva board
1239 *
1240 * DESCRIPTION:
1241 * Pan (or wrap, depending on the `vmode' field) the display using the
1242 * `xoffset' and `yoffset' fields of the `var' structure.
1243 * If the values don't fit, return -EINVAL.
1244 *
1245 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
1246 */
1247 static int rivafb_pan_display(struct fb_var_screeninfo *var,
1248 struct fb_info *info)
1249 {
1250 struct riva_par *par = info->par;
1251 unsigned int base;
1252
1253 NVTRACE_ENTER();
1254 base = var->yoffset * info->fix.line_length + var->xoffset;
1255 par->riva.SetStartAddress(&par->riva, base);
1256 NVTRACE_LEAVE();
1257 return 0;
1258 }
1259
1260 static int rivafb_blank(int blank, struct fb_info *info)
1261 {
1262 struct riva_par *par= info->par;
1263 unsigned char tmp, vesa;
1264
1265 tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */
1266 vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */
1267
1268 NVTRACE_ENTER();
1269
1270 if (blank)
1271 tmp |= 0x20;
1272
1273 switch (blank) {
1274 case FB_BLANK_UNBLANK:
1275 case FB_BLANK_NORMAL:
1276 break;
1277 case FB_BLANK_VSYNC_SUSPEND:
1278 vesa |= 0x80;
1279 break;
1280 case FB_BLANK_HSYNC_SUSPEND:
1281 vesa |= 0x40;
1282 break;
1283 case FB_BLANK_POWERDOWN:
1284 vesa |= 0xc0;
1285 break;
1286 }
1287
1288 SEQout(par, 0x01, tmp);
1289 CRTCout(par, 0x1a, vesa);
1290
1291 NVTRACE_LEAVE();
1292
1293 return 0;
1294 }
1295
1296 /**
1297 * rivafb_setcolreg
1298 * @regno: register index
1299 * @red: red component
1300 * @green: green component
1301 * @blue: blue component
1302 * @transp: transparency
1303 * @info: pointer to fb_info object containing info for current riva board
1304 *
1305 * DESCRIPTION:
1306 * Set a single color register. The values supplied have a 16 bit
1307 * magnitude.
1308 *
1309 * RETURNS:
1310 * Return != 0 for invalid regno.
1311 *
1312 * CALLED FROM:
1313 * fbcmap.c:fb_set_cmap()
1314 */
1315 static int rivafb_setcolreg(unsigned regno, unsigned red, unsigned green,
1316 unsigned blue, unsigned transp,
1317 struct fb_info *info)
1318 {
1319 struct riva_par *par = info->par;
1320 RIVA_HW_INST *chip = &par->riva;
1321 int i;
1322
1323 if (regno >= riva_get_cmap_len(&info->var))
1324 return -EINVAL;
1325
1326 if (info->var.grayscale) {
1327 /* gray = 0.30*R + 0.59*G + 0.11*B */
1328 red = green = blue =
1329 (red * 77 + green * 151 + blue * 28) >> 8;
1330 }
1331
1332 if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
1333 ((u32 *) info->pseudo_palette)[regno] =
1334 (regno << info->var.red.offset) |
1335 (regno << info->var.green.offset) |
1336 (regno << info->var.blue.offset);
1337 /*
1338 * The Riva128 2D engine requires color information in
1339 * TrueColor format even if framebuffer is in DirectColor
1340 */
1341 if (par->riva.Architecture == NV_ARCH_03) {
1342 switch (info->var.bits_per_pixel) {
1343 case 16:
1344 par->palette[regno] = ((red & 0xf800) >> 1) |
1345 ((green & 0xf800) >> 6) |
1346 ((blue & 0xf800) >> 11);
1347 break;
1348 case 32:
1349 par->palette[regno] = ((red & 0xff00) << 8) |
1350 ((green & 0xff00)) |
1351 ((blue & 0xff00) >> 8);
1352 break;
1353 }
1354 }
1355 }
1356
1357 switch (info->var.bits_per_pixel) {
1358 case 8:
1359 /* "transparent" stuff is completely ignored. */
1360 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1361 break;
1362 case 16:
1363 if (info->var.green.length == 5) {
1364 for (i = 0; i < 8; i++) {
1365 riva_wclut(chip, regno*8+i, red >> 8,
1366 green >> 8, blue >> 8);
1367 }
1368 } else {
1369 u8 r, g, b;
1370
1371 if (regno < 32) {
1372 for (i = 0; i < 8; i++) {
1373 riva_wclut(chip, regno*8+i,
1374 red >> 8, green >> 8,
1375 blue >> 8);
1376 }
1377 }
1378 riva_rclut(chip, regno*4, &r, &g, &b);
1379 for (i = 0; i < 4; i++)
1380 riva_wclut(chip, regno*4+i, r,
1381 green >> 8, b);
1382 }
1383 break;
1384 case 32:
1385 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1386 break;
1387 default:
1388 /* do nothing */
1389 break;
1390 }
1391 return 0;
1392 }
1393
1394 /**
1395 * rivafb_fillrect - hardware accelerated color fill function
1396 * @info: pointer to fb_info structure
1397 * @rect: pointer to fb_fillrect structure
1398 *
1399 * DESCRIPTION:
1400 * This function fills up a region of framebuffer memory with a solid
1401 * color with a choice of two different ROP's, copy or invert.
1402 *
1403 * CALLED FROM:
1404 * framebuffer hook
1405 */
1406 static void rivafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1407 {
1408 struct riva_par *par = info->par;
1409 u_int color, rop = 0;
1410
1411 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1412 cfb_fillrect(info, rect);
1413 return;
1414 }
1415
1416 if (info->var.bits_per_pixel == 8)
1417 color = rect->color;
1418 else {
1419 if (par->riva.Architecture != NV_ARCH_03)
1420 color = ((u32 *)info->pseudo_palette)[rect->color];
1421 else
1422 color = par->palette[rect->color];
1423 }
1424
1425 switch (rect->rop) {
1426 case ROP_XOR:
1427 rop = 0x66;
1428 break;
1429 case ROP_COPY:
1430 default:
1431 rop = 0xCC;
1432 break;
1433 }
1434
1435 riva_set_rop_solid(par, rop);
1436
1437 RIVA_FIFO_FREE(par->riva, Bitmap, 1);
1438 NV_WR32(&par->riva.Bitmap->Color1A, 0, color);
1439
1440 RIVA_FIFO_FREE(par->riva, Bitmap, 2);
1441 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].TopLeft, 0,
1442 (rect->dx << 16) | rect->dy);
1443 mb();
1444 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].WidthHeight, 0,
1445 (rect->width << 16) | rect->height);
1446 mb();
1447 riva_set_rop_solid(par, 0xcc);
1448
1449 }
1450
1451 /**
1452 * rivafb_copyarea - hardware accelerated blit function
1453 * @info: pointer to fb_info structure
1454 * @region: pointer to fb_copyarea structure
1455 *
1456 * DESCRIPTION:
1457 * This copies an area of pixels from one location to another
1458 *
1459 * CALLED FROM:
1460 * framebuffer hook
1461 */
1462 static void rivafb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
1463 {
1464 struct riva_par *par = info->par;
1465
1466 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1467 cfb_copyarea(info, region);
1468 return;
1469 }
1470
1471 RIVA_FIFO_FREE(par->riva, Blt, 3);
1472 NV_WR32(&par->riva.Blt->TopLeftSrc, 0,
1473 (region->sy << 16) | region->sx);
1474 NV_WR32(&par->riva.Blt->TopLeftDst, 0,
1475 (region->dy << 16) | region->dx);
1476 mb();
1477 NV_WR32(&par->riva.Blt->WidthHeight, 0,
1478 (region->height << 16) | region->width);
1479 mb();
1480 }
1481
1482 static inline void convert_bgcolor_16(u32 *col)
1483 {
1484 *col = ((*col & 0x0000F800) << 8)
1485 | ((*col & 0x00007E0) << 5)
1486 | ((*col & 0x0000001F) << 3)
1487 | 0xFF000000;
1488 mb();
1489 }
1490
1491 /**
1492 * rivafb_imageblit: hardware accelerated color expand function
1493 * @info: pointer to fb_info structure
1494 * @image: pointer to fb_image structure
1495 *
1496 * DESCRIPTION:
1497 * If the source is a monochrome bitmap, the function fills up a a region
1498 * of framebuffer memory with pixels whose color is determined by the bit
1499 * setting of the bitmap, 1 - foreground, 0 - background.
1500 *
1501 * If the source is not a monochrome bitmap, color expansion is not done.
1502 * In this case, it is channeled to a software function.
1503 *
1504 * CALLED FROM:
1505 * framebuffer hook
1506 */
1507 static void rivafb_imageblit(struct fb_info *info,
1508 const struct fb_image *image)
1509 {
1510 struct riva_par *par = info->par;
1511 u32 fgx = 0, bgx = 0, width, tmp;
1512 u8 *cdat = (u8 *) image->data;
1513 volatile u32 __iomem *d;
1514 int i, size;
1515
1516 if ((info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1) {
1517 cfb_imageblit(info, image);
1518 return;
1519 }
1520
1521 switch (info->var.bits_per_pixel) {
1522 case 8:
1523 fgx = image->fg_color;
1524 bgx = image->bg_color;
1525 break;
1526 case 16:
1527 case 32:
1528 if (par->riva.Architecture != NV_ARCH_03) {
1529 fgx = ((u32 *)info->pseudo_palette)[image->fg_color];
1530 bgx = ((u32 *)info->pseudo_palette)[image->bg_color];
1531 } else {
1532 fgx = par->palette[image->fg_color];
1533 bgx = par->palette[image->bg_color];
1534 }
1535 if (info->var.green.length == 6)
1536 convert_bgcolor_16(&bgx);
1537 break;
1538 }
1539
1540 RIVA_FIFO_FREE(par->riva, Bitmap, 7);
1541 NV_WR32(&par->riva.Bitmap->ClipE.TopLeft, 0,
1542 (image->dy << 16) | (image->dx & 0xFFFF));
1543 NV_WR32(&par->riva.Bitmap->ClipE.BottomRight, 0,
1544 (((image->dy + image->height) << 16) |
1545 ((image->dx + image->width) & 0xffff)));
1546 NV_WR32(&par->riva.Bitmap->Color0E, 0, bgx);
1547 NV_WR32(&par->riva.Bitmap->Color1E, 0, fgx);
1548 NV_WR32(&par->riva.Bitmap->WidthHeightInE, 0,
1549 (image->height << 16) | ((image->width + 31) & ~31));
1550 NV_WR32(&par->riva.Bitmap->WidthHeightOutE, 0,
1551 (image->height << 16) | ((image->width + 31) & ~31));
1552 NV_WR32(&par->riva.Bitmap->PointE, 0,
1553 (image->dy << 16) | (image->dx & 0xFFFF));
1554
1555 d = &par->riva.Bitmap->MonochromeData01E;
1556
1557 width = (image->width + 31)/32;
1558 size = width * image->height;
1559 while (size >= 16) {
1560 RIVA_FIFO_FREE(par->riva, Bitmap, 16);
1561 for (i = 0; i < 16; i++) {
1562 tmp = *((u32 *)cdat);
1563 cdat = (u8 *)((u32 *)cdat + 1);
1564 reverse_order(&tmp);
1565 NV_WR32(d, i*4, tmp);
1566 }
1567 size -= 16;
1568 }
1569 if (size) {
1570 RIVA_FIFO_FREE(par->riva, Bitmap, size);
1571 for (i = 0; i < size; i++) {
1572 tmp = *((u32 *) cdat);
1573 cdat = (u8 *)((u32 *)cdat + 1);
1574 reverse_order(&tmp);
1575 NV_WR32(d, i*4, tmp);
1576 }
1577 }
1578 }
1579
1580 /**
1581 * rivafb_cursor - hardware cursor function
1582 * @info: pointer to info structure
1583 * @cursor: pointer to fbcursor structure
1584 *
1585 * DESCRIPTION:
1586 * A cursor function that supports displaying a cursor image via hardware.
1587 * Within the kernel, copy and invert rops are supported. If exported
1588 * to user space, only the copy rop will be supported.
1589 *
1590 * CALLED FROM
1591 * framebuffer hook
1592 */
1593 static int rivafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1594 {
1595 struct riva_par *par = info->par;
1596 u8 data[MAX_CURS * MAX_CURS/8];
1597 int i, set = cursor->set;
1598 u16 fg, bg;
1599
1600 if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
1601 return -ENXIO;
1602
1603 par->riva.ShowHideCursor(&par->riva, 0);
1604
1605 if (par->cursor_reset) {
1606 set = FB_CUR_SETALL;
1607 par->cursor_reset = 0;
1608 }
1609
1610 if (set & FB_CUR_SETSIZE)
1611 memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2);
1612
1613 if (set & FB_CUR_SETPOS) {
1614 u32 xx, yy, temp;
1615
1616 yy = cursor->image.dy - info->var.yoffset;
1617 xx = cursor->image.dx - info->var.xoffset;
1618 temp = xx & 0xFFFF;
1619 temp |= yy << 16;
1620
1621 NV_WR32(par->riva.PRAMDAC, 0x0000300, temp);
1622 }
1623
1624
1625 if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
1626 u32 bg_idx = cursor->image.bg_color;
1627 u32 fg_idx = cursor->image.fg_color;
1628 u32 s_pitch = (cursor->image.width+7) >> 3;
1629 u32 d_pitch = MAX_CURS/8;
1630 u8 *dat = (u8 *) cursor->image.data;
1631 u8 *msk = (u8 *) cursor->mask;
1632 u8 *src;
1633
1634 src = kmalloc(s_pitch * cursor->image.height, GFP_ATOMIC);
1635
1636 if (src) {
1637 switch (cursor->rop) {
1638 case ROP_XOR:
1639 for (i = 0; i < s_pitch * cursor->image.height; i++)
1640 src[i] = dat[i] ^ msk[i];
1641 break;
1642 case ROP_COPY:
1643 default:
1644 for (i = 0; i < s_pitch * cursor->image.height; i++)
1645 src[i] = dat[i] & msk[i];
1646 break;
1647 }
1648
1649 fb_pad_aligned_buffer(data, d_pitch, src, s_pitch,
1650 cursor->image.height);
1651
1652 bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
1653 ((info->cmap.green[bg_idx] & 0xf8) << 2) |
1654 ((info->cmap.blue[bg_idx] & 0xf8) >> 3) |
1655 1 << 15;
1656
1657 fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
1658 ((info->cmap.green[fg_idx] & 0xf8) << 2) |
1659 ((info->cmap.blue[fg_idx] & 0xf8) >> 3) |
1660 1 << 15;
1661
1662 par->riva.LockUnlock(&par->riva, 0);
1663
1664 rivafb_load_cursor_image(par, data, bg, fg,
1665 cursor->image.width,
1666 cursor->image.height);
1667 kfree(src);
1668 }
1669 }
1670
1671 if (cursor->enable)
1672 par->riva.ShowHideCursor(&par->riva, 1);
1673
1674 return 0;
1675 }
1676
1677 static int rivafb_sync(struct fb_info *info)
1678 {
1679 struct riva_par *par = info->par;
1680
1681 wait_for_idle(par);
1682 return 0;
1683 }
1684
1685 /* ------------------------------------------------------------------------- *
1686 *
1687 * initialization helper functions
1688 *
1689 * ------------------------------------------------------------------------- */
1690
1691 /* kernel interface */
1692 static struct fb_ops riva_fb_ops = {
1693 .owner = THIS_MODULE,
1694 .fb_open = rivafb_open,
1695 .fb_release = rivafb_release,
1696 .fb_check_var = rivafb_check_var,
1697 .fb_set_par = rivafb_set_par,
1698 .fb_setcolreg = rivafb_setcolreg,
1699 .fb_pan_display = rivafb_pan_display,
1700 .fb_blank = rivafb_blank,
1701 .fb_fillrect = rivafb_fillrect,
1702 .fb_copyarea = rivafb_copyarea,
1703 .fb_imageblit = rivafb_imageblit,
1704 .fb_cursor = rivafb_cursor,
1705 .fb_sync = rivafb_sync,
1706 };
1707
1708 static int __devinit riva_set_fbinfo(struct fb_info *info)
1709 {
1710 unsigned int cmap_len;
1711 struct riva_par *par = info->par;
1712
1713 NVTRACE_ENTER();
1714 info->flags = FBINFO_DEFAULT
1715 | FBINFO_HWACCEL_XPAN
1716 | FBINFO_HWACCEL_YPAN
1717 | FBINFO_HWACCEL_COPYAREA
1718 | FBINFO_HWACCEL_FILLRECT
1719 | FBINFO_HWACCEL_IMAGEBLIT;
1720
1721 /* Accel seems to not work properly on NV30 yet...*/
1722 if ((par->riva.Architecture == NV_ARCH_30) || noaccel) {
1723 printk(KERN_DEBUG PFX "disabling acceleration\n");
1724 info->flags |= FBINFO_HWACCEL_DISABLED;
1725 }
1726
1727 info->var = rivafb_default_var;
1728 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1729 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1730
1731 info->pseudo_palette = par->pseudo_palette;
1732
1733 cmap_len = riva_get_cmap_len(&info->var);
1734 fb_alloc_cmap(&info->cmap, cmap_len, 0);
1735
1736 info->pixmap.size = 8 * 1024;
1737 info->pixmap.buf_align = 4;
1738 info->pixmap.access_align = 32;
1739 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1740 info->var.yres_virtual = -1;
1741 NVTRACE_LEAVE();
1742 return (rivafb_check_var(&info->var, info));
1743 }
1744
1745 #ifdef CONFIG_PPC_OF
1746 static int __devinit riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd)
1747 {
1748 struct riva_par *par = info->par;
1749 struct device_node *dp;
1750 const unsigned char *pedid = NULL;
1751 const unsigned char *disptype = NULL;
1752 static char *propnames[] = {
1753 "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL };
1754 int i;
1755
1756 NVTRACE_ENTER();
1757 dp = pci_device_to_OF_node(pd);
1758 for (; dp != NULL; dp = dp->child) {
1759 disptype = of_get_property(dp, "display-type", NULL);
1760 if (disptype == NULL)
1761 continue;
1762 if (strncmp(disptype, "LCD", 3) != 0)
1763 continue;
1764 for (i = 0; propnames[i] != NULL; ++i) {
1765 pedid = of_get_property(dp, propnames[i], NULL);
1766 if (pedid != NULL) {
1767 par->EDID = (unsigned char *)pedid;
1768 NVTRACE("LCD found.\n");
1769 return 1;
1770 }
1771 }
1772 }
1773 NVTRACE_LEAVE();
1774 return 0;
1775 }
1776 #endif /* CONFIG_PPC_OF */
1777
1778 #if defined(CONFIG_FB_RIVA_I2C) && !defined(CONFIG_PPC_OF)
1779 static int __devinit riva_get_EDID_i2c(struct fb_info *info)
1780 {
1781 struct riva_par *par = info->par;
1782 struct fb_var_screeninfo var;
1783 int i;
1784
1785 NVTRACE_ENTER();
1786 riva_create_i2c_busses(par);
1787 for (i = 0; i < 3; i++) {
1788 if (!par->chan[i].par)
1789 continue;
1790 riva_probe_i2c_connector(par, i, &par->EDID);
1791 if (par->EDID && !fb_parse_edid(par->EDID, &var)) {
1792 printk(PFX "Found EDID Block from BUS %i\n", i);
1793 break;
1794 }
1795 }
1796
1797 NVTRACE_LEAVE();
1798 return (par->EDID) ? 1 : 0;
1799 }
1800 #endif /* CONFIG_FB_RIVA_I2C */
1801
1802 static void __devinit riva_update_default_var(struct fb_var_screeninfo *var,
1803 struct fb_info *info)
1804 {
1805 struct fb_monspecs *specs = &info->monspecs;
1806 struct fb_videomode modedb;
1807
1808 NVTRACE_ENTER();
1809 /* respect mode options */
1810 if (mode_option) {
1811 fb_find_mode(var, info, mode_option,
1812 specs->modedb, specs->modedb_len,
1813 NULL, 8);
1814 } else if (specs->modedb != NULL) {
1815 /* get preferred timing */
1816 if (info->monspecs.misc & FB_MISC_1ST_DETAIL) {
1817 int i;
1818
1819 for (i = 0; i < specs->modedb_len; i++) {
1820 if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
1821 modedb = specs->modedb[i];
1822 break;
1823 }
1824 }
1825 } else {
1826 /* otherwise, get first mode in database */
1827 modedb = specs->modedb[0];
1828 }
1829 var->bits_per_pixel = 8;
1830 riva_update_var(var, &modedb);
1831 }
1832 NVTRACE_LEAVE();
1833 }
1834
1835
1836 static void __devinit riva_get_EDID(struct fb_info *info, struct pci_dev *pdev)
1837 {
1838 NVTRACE_ENTER();
1839 #ifdef CONFIG_PPC_OF
1840 if (!riva_get_EDID_OF(info, pdev))
1841 printk(PFX "could not retrieve EDID from OF\n");
1842 #elif defined(CONFIG_FB_RIVA_I2C)
1843 if (!riva_get_EDID_i2c(info))
1844 printk(PFX "could not retrieve EDID from DDC/I2C\n");
1845 #endif
1846 NVTRACE_LEAVE();
1847 }
1848
1849
1850 static void __devinit riva_get_edidinfo(struct fb_info *info)
1851 {
1852 struct fb_var_screeninfo *var = &rivafb_default_var;
1853 struct riva_par *par = info->par;
1854
1855 fb_edid_to_monspecs(par->EDID, &info->monspecs);
1856 fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len,
1857 &info->modelist);
1858 riva_update_default_var(var, info);
1859
1860 /* if user specified flatpanel, we respect that */
1861 if (info->monspecs.input & FB_DISP_DDI)
1862 par->FlatPanel = 1;
1863 }
1864
1865 /* ------------------------------------------------------------------------- *
1866 *
1867 * PCI bus
1868 *
1869 * ------------------------------------------------------------------------- */
1870
1871 static u32 __devinit riva_get_arch(struct pci_dev *pd)
1872 {
1873 u32 arch = 0;
1874
1875 switch (pd->device & 0x0ff0) {
1876 case 0x0100: /* GeForce 256 */
1877 case 0x0110: /* GeForce2 MX */
1878 case 0x0150: /* GeForce2 */
1879 case 0x0170: /* GeForce4 MX */
1880 case 0x0180: /* GeForce4 MX (8x AGP) */
1881 case 0x01A0: /* nForce */
1882 case 0x01F0: /* nForce2 */
1883 arch = NV_ARCH_10;
1884 break;
1885 case 0x0200: /* GeForce3 */
1886 case 0x0250: /* GeForce4 Ti */
1887 case 0x0280: /* GeForce4 Ti (8x AGP) */
1888 arch = NV_ARCH_20;
1889 break;
1890 case 0x0300: /* GeForceFX 5800 */
1891 case 0x0310: /* GeForceFX 5600 */
1892 case 0x0320: /* GeForceFX 5200 */
1893 case 0x0330: /* GeForceFX 5900 */
1894 case 0x0340: /* GeForceFX 5700 */
1895 arch = NV_ARCH_30;
1896 break;
1897 case 0x0020: /* TNT, TNT2 */
1898 arch = NV_ARCH_04;
1899 break;
1900 case 0x0010: /* Riva128 */
1901 arch = NV_ARCH_03;
1902 break;
1903 default: /* unknown architecture */
1904 break;
1905 }
1906 return arch;
1907 }
1908
1909 static int __devinit rivafb_probe(struct pci_dev *pd,
1910 const struct pci_device_id *ent)
1911 {
1912 struct riva_par *default_par;
1913 struct fb_info *info;
1914 int ret;
1915
1916 NVTRACE_ENTER();
1917 assert(pd != NULL);
1918
1919 info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev);
1920 if (!info) {
1921 printk (KERN_ERR PFX "could not allocate memory\n");
1922 ret = -ENOMEM;
1923 goto err_ret;
1924 }
1925 default_par = info->par;
1926 default_par->pdev = pd;
1927
1928 info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
1929 if (info->pixmap.addr == NULL) {
1930 ret = -ENOMEM;
1931 goto err_framebuffer_release;
1932 }
1933
1934 ret = pci_enable_device(pd);
1935 if (ret < 0) {
1936 printk(KERN_ERR PFX "cannot enable PCI device\n");
1937 goto err_free_pixmap;
1938 }
1939
1940 ret = pci_request_regions(pd, "rivafb");
1941 if (ret < 0) {
1942 printk(KERN_ERR PFX "cannot request PCI regions\n");
1943 goto err_disable_device;
1944 }
1945
1946 mutex_init(&default_par->open_lock);
1947 default_par->riva.Architecture = riva_get_arch(pd);
1948
1949 default_par->Chipset = (pd->vendor << 16) | pd->device;
1950 printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset);
1951
1952 if(default_par->riva.Architecture == 0) {
1953 printk(KERN_ERR PFX "unknown NV_ARCH\n");
1954 ret=-ENODEV;
1955 goto err_release_region;
1956 }
1957 if(default_par->riva.Architecture == NV_ARCH_10 ||
1958 default_par->riva.Architecture == NV_ARCH_20 ||
1959 default_par->riva.Architecture == NV_ARCH_30) {
1960 sprintf(rivafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
1961 } else {
1962 sprintf(rivafb_fix.id, "NV%x", default_par->riva.Architecture);
1963 }
1964
1965 default_par->FlatPanel = flatpanel;
1966 if (flatpanel == 1)
1967 printk(KERN_INFO PFX "flatpanel support enabled\n");
1968 default_par->forceCRTC = forceCRTC;
1969
1970 rivafb_fix.mmio_len = pci_resource_len(pd, 0);
1971 rivafb_fix.smem_len = pci_resource_len(pd, 1);
1972
1973 {
1974 /* enable IO and mem if not already done */
1975 unsigned short cmd;
1976
1977 pci_read_config_word(pd, PCI_COMMAND, &cmd);
1978 cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
1979 pci_write_config_word(pd, PCI_COMMAND, cmd);
1980 }
1981
1982 rivafb_fix.mmio_start = pci_resource_start(pd, 0);
1983 rivafb_fix.smem_start = pci_resource_start(pd, 1);
1984
1985 default_par->ctrl_base = ioremap(rivafb_fix.mmio_start,
1986 rivafb_fix.mmio_len);
1987 if (!default_par->ctrl_base) {
1988 printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
1989 ret = -EIO;
1990 goto err_release_region;
1991 }
1992
1993 switch (default_par->riva.Architecture) {
1994 case NV_ARCH_03:
1995 /* Riva128's PRAMIN is in the "framebuffer" space
1996 * Since these cards were never made with more than 8 megabytes
1997 * we can safely allocate this separately.
1998 */
1999 default_par->riva.PRAMIN = ioremap(rivafb_fix.smem_start + 0x00C00000, 0x00008000);
2000 if (!default_par->riva.PRAMIN) {
2001 printk(KERN_ERR PFX "cannot ioremap PRAMIN region\n");
2002 ret = -EIO;
2003 goto err_iounmap_ctrl_base;
2004 }
2005 break;
2006 case NV_ARCH_04:
2007 case NV_ARCH_10:
2008 case NV_ARCH_20:
2009 case NV_ARCH_30:
2010 default_par->riva.PCRTC0 =
2011 (u32 __iomem *)(default_par->ctrl_base + 0x00600000);
2012 default_par->riva.PRAMIN =
2013 (u32 __iomem *)(default_par->ctrl_base + 0x00710000);
2014 break;
2015 }
2016 riva_common_setup(default_par);
2017
2018 if (default_par->riva.Architecture == NV_ARCH_03) {
2019 default_par->riva.PCRTC = default_par->riva.PCRTC0
2020 = default_par->riva.PGRAPH;
2021 }
2022
2023 rivafb_fix.smem_len = riva_get_memlen(default_par) * 1024;
2024 default_par->dclk_max = riva_get_maxdclk(default_par) * 1000;
2025 info->screen_base = ioremap(rivafb_fix.smem_start,
2026 rivafb_fix.smem_len);
2027 if (!info->screen_base) {
2028 printk(KERN_ERR PFX "cannot ioremap FB base\n");
2029 ret = -EIO;
2030 goto err_iounmap_pramin;
2031 }
2032
2033 #ifdef CONFIG_MTRR
2034 if (!nomtrr) {
2035 default_par->mtrr.vram = mtrr_add(rivafb_fix.smem_start,
2036 rivafb_fix.smem_len,
2037 MTRR_TYPE_WRCOMB, 1);
2038 if (default_par->mtrr.vram < 0) {
2039 printk(KERN_ERR PFX "unable to setup MTRR\n");
2040 } else {
2041 default_par->mtrr.vram_valid = 1;
2042 /* let there be speed */
2043 printk(KERN_INFO PFX "RIVA MTRR set to ON\n");
2044 }
2045 }
2046 #endif /* CONFIG_MTRR */
2047
2048 info->fbops = &riva_fb_ops;
2049 info->fix = rivafb_fix;
2050 riva_get_EDID(info, pd);
2051 riva_get_edidinfo(info);
2052
2053 ret=riva_set_fbinfo(info);
2054 if (ret < 0) {
2055 printk(KERN_ERR PFX "error setting initial video mode\n");
2056 goto err_iounmap_screen_base;
2057 }
2058
2059 fb_destroy_modedb(info->monspecs.modedb);
2060 info->monspecs.modedb = NULL;
2061
2062 pci_set_drvdata(pd, info);
2063
2064 if (backlight)
2065 riva_bl_init(info->par);
2066
2067 ret = register_framebuffer(info);
2068 if (ret < 0) {
2069 printk(KERN_ERR PFX
2070 "error registering riva framebuffer\n");
2071 goto err_iounmap_screen_base;
2072 }
2073
2074 printk(KERN_INFO PFX
2075 "PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n",
2076 info->fix.id,
2077 RIVAFB_VERSION,
2078 info->fix.smem_len / (1024 * 1024),
2079 info->fix.smem_start);
2080
2081 NVTRACE_LEAVE();
2082 return 0;
2083
2084 err_iounmap_screen_base:
2085 #ifdef CONFIG_FB_RIVA_I2C
2086 riva_delete_i2c_busses(info->par);
2087 #endif
2088 iounmap(info->screen_base);
2089 err_iounmap_pramin:
2090 if (default_par->riva.Architecture == NV_ARCH_03)
2091 iounmap(default_par->riva.PRAMIN);
2092 err_iounmap_ctrl_base:
2093 iounmap(default_par->ctrl_base);
2094 err_release_region:
2095 pci_release_regions(pd);
2096 err_disable_device:
2097 err_free_pixmap:
2098 kfree(info->pixmap.addr);
2099 err_framebuffer_release:
2100 framebuffer_release(info);
2101 err_ret:
2102 return ret;
2103 }
2104
2105 static void __devexit rivafb_remove(struct pci_dev *pd)
2106 {
2107 struct fb_info *info = pci_get_drvdata(pd);
2108 struct riva_par *par = info->par;
2109
2110 NVTRACE_ENTER();
2111
2112 #ifdef CONFIG_FB_RIVA_I2C
2113 riva_delete_i2c_busses(par);
2114 kfree(par->EDID);
2115 #endif
2116
2117 unregister_framebuffer(info);
2118
2119 riva_bl_exit(info);
2120
2121 #ifdef CONFIG_MTRR
2122 if (par->mtrr.vram_valid)
2123 mtrr_del(par->mtrr.vram, info->fix.smem_start,
2124 info->fix.smem_len);
2125 #endif /* CONFIG_MTRR */
2126
2127 iounmap(par->ctrl_base);
2128 iounmap(info->screen_base);
2129 if (par->riva.Architecture == NV_ARCH_03)
2130 iounmap(par->riva.PRAMIN);
2131 pci_release_regions(pd);
2132 kfree(info->pixmap.addr);
2133 framebuffer_release(info);
2134 pci_set_drvdata(pd, NULL);
2135 NVTRACE_LEAVE();
2136 }
2137
2138 /* ------------------------------------------------------------------------- *
2139 *
2140 * initialization
2141 *
2142 * ------------------------------------------------------------------------- */
2143
2144 #ifndef MODULE
2145 static int __devinit rivafb_setup(char *options)
2146 {
2147 char *this_opt;
2148
2149 NVTRACE_ENTER();
2150 if (!options || !*options)
2151 return 0;
2152
2153 while ((this_opt = strsep(&options, ",")) != NULL) {
2154 if (!strncmp(this_opt, "forceCRTC", 9)) {
2155 char *p;
2156
2157 p = this_opt + 9;
2158 if (!*p || !*(++p)) continue;
2159 forceCRTC = *p - '0';
2160 if (forceCRTC < 0 || forceCRTC > 1)
2161 forceCRTC = -1;
2162 } else if (!strncmp(this_opt, "flatpanel", 9)) {
2163 flatpanel = 1;
2164 } else if (!strncmp(this_opt, "backlight:", 10)) {
2165 backlight = simple_strtoul(this_opt+10, NULL, 0);
2166 #ifdef CONFIG_MTRR
2167 } else if (!strncmp(this_opt, "nomtrr", 6)) {
2168 nomtrr = 1;
2169 #endif
2170 } else if (!strncmp(this_opt, "strictmode", 10)) {
2171 strictmode = 1;
2172 } else if (!strncmp(this_opt, "noaccel", 7)) {
2173 noaccel = 1;
2174 } else
2175 mode_option = this_opt;
2176 }
2177 NVTRACE_LEAVE();
2178 return 0;
2179 }
2180 #endif /* !MODULE */
2181
2182 static struct pci_driver rivafb_driver = {
2183 .name = "rivafb",
2184 .id_table = rivafb_pci_tbl,
2185 .probe = rivafb_probe,
2186 .remove = __devexit_p(rivafb_remove),
2187 };
2188
2189
2190
2191 /* ------------------------------------------------------------------------- *
2192 *
2193 * modularization
2194 *
2195 * ------------------------------------------------------------------------- */
2196
2197 static int __devinit rivafb_init(void)
2198 {
2199 #ifndef MODULE
2200 char *option = NULL;
2201
2202 if (fb_get_options("rivafb", &option))
2203 return -ENODEV;
2204 rivafb_setup(option);
2205 #endif
2206 return pci_register_driver(&rivafb_driver);
2207 }
2208
2209
2210 module_init(rivafb_init);
2211
2212 static void __exit rivafb_exit(void)
2213 {
2214 pci_unregister_driver(&rivafb_driver);
2215 }
2216
2217 module_exit(rivafb_exit);
2218
2219 module_param(noaccel, bool, 0);
2220 MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
2221 module_param(flatpanel, int, 0);
2222 MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)");
2223 module_param(forceCRTC, int, 0);
2224 MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)");
2225 #ifdef CONFIG_MTRR
2226 module_param(nomtrr, bool, 0);
2227 MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)");
2228 #endif
2229 module_param(strictmode, bool, 0);
2230 MODULE_PARM_DESC(strictmode, "Only use video modes from EDID");
2231
2232 MODULE_AUTHOR("Ani Joshi, maintainer");
2233 MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series");
2234 MODULE_LICENSE("GPL");
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