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thinkpad-acpi: untangle ACPI/vendor backlight selection
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / video / riva / fbdev.c
blob618f36bec10d10ed5ece287e19e02909506e11a3
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 backlight_properties props;
342 struct fb_info *info = pci_get_drvdata(par->pdev);
343 struct backlight_device *bd;
344 char name[12];
345
346 if (!par->FlatPanel)
347 return;
348
349 #ifdef CONFIG_PMAC_BACKLIGHT
350 if (!machine_is(powermac) ||
351 !pmac_has_backlight_type("mnca"))
352 return;
353 #endif
354
355 snprintf(name, sizeof(name), "rivabl%d", info->node);
356
357 memset(&props, 0, sizeof(struct backlight_properties));
358 props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
359 bd = backlight_device_register(name, info->dev, par, &riva_bl_ops,
360 &props);
361 if (IS_ERR(bd)) {
362 info->bl_dev = NULL;
363 printk(KERN_WARNING "riva: Backlight registration failed\n");
364 goto error;
365 }
366
367 info->bl_dev = bd;
368 fb_bl_default_curve(info, 0,
369 MIN_LEVEL * FB_BACKLIGHT_MAX / MAX_LEVEL,
370 FB_BACKLIGHT_MAX);
371
372 bd->props.brightness = bd->props.max_brightness;
373 bd->props.power = FB_BLANK_UNBLANK;
374 backlight_update_status(bd);
375
376 printk("riva: Backlight initialized (%s)\n", name);
377
378 return;
379
380 error:
381 return;
382 }
383
384 static void riva_bl_exit(struct fb_info *info)
385 {
386 struct backlight_device *bd = info->bl_dev;
387
388 backlight_device_unregister(bd);
389 printk("riva: Backlight unloaded\n");
390 }
391 #else
392 static inline void riva_bl_init(struct riva_par *par) {}
393 static inline void riva_bl_exit(struct fb_info *info) {}
394 #endif /* CONFIG_FB_RIVA_BACKLIGHT */
395
396 /* ------------------------------------------------------------------------- *
397 *
398 * MMIO access macros
399 *
400 * ------------------------------------------------------------------------- */
401
402 static inline void CRTCout(struct riva_par *par, unsigned char index,
403 unsigned char val)
404 {
405 VGA_WR08(par->riva.PCIO, 0x3d4, index);
406 VGA_WR08(par->riva.PCIO, 0x3d5, val);
407 }
408
409 static inline unsigned char CRTCin(struct riva_par *par,
410 unsigned char index)
411 {
412 VGA_WR08(par->riva.PCIO, 0x3d4, index);
413 return (VGA_RD08(par->riva.PCIO, 0x3d5));
414 }
415
416 static inline void GRAout(struct riva_par *par, unsigned char index,
417 unsigned char val)
418 {
419 VGA_WR08(par->riva.PVIO, 0x3ce, index);
420 VGA_WR08(par->riva.PVIO, 0x3cf, val);
421 }
422
423 static inline unsigned char GRAin(struct riva_par *par,
424 unsigned char index)
425 {
426 VGA_WR08(par->riva.PVIO, 0x3ce, index);
427 return (VGA_RD08(par->riva.PVIO, 0x3cf));
428 }
429
430 static inline void SEQout(struct riva_par *par, unsigned char index,
431 unsigned char val)
432 {
433 VGA_WR08(par->riva.PVIO, 0x3c4, index);
434 VGA_WR08(par->riva.PVIO, 0x3c5, val);
435 }
436
437 static inline unsigned char SEQin(struct riva_par *par,
438 unsigned char index)
439 {
440 VGA_WR08(par->riva.PVIO, 0x3c4, index);
441 return (VGA_RD08(par->riva.PVIO, 0x3c5));
442 }
443
444 static inline void ATTRout(struct riva_par *par, unsigned char index,
445 unsigned char val)
446 {
447 VGA_WR08(par->riva.PCIO, 0x3c0, index);
448 VGA_WR08(par->riva.PCIO, 0x3c0, val);
449 }
450
451 static inline unsigned char ATTRin(struct riva_par *par,
452 unsigned char index)
453 {
454 VGA_WR08(par->riva.PCIO, 0x3c0, index);
455 return (VGA_RD08(par->riva.PCIO, 0x3c1));
456 }
457
458 static inline void MISCout(struct riva_par *par, unsigned char val)
459 {
460 VGA_WR08(par->riva.PVIO, 0x3c2, val);
461 }
462
463 static inline unsigned char MISCin(struct riva_par *par)
464 {
465 return (VGA_RD08(par->riva.PVIO, 0x3cc));
466 }
467
468 static inline void reverse_order(u32 *l)
469 {
470 u8 *a = (u8 *)l;
471 a[0] = bitrev8(a[0]);
472 a[1] = bitrev8(a[1]);
473 a[2] = bitrev8(a[2]);
474 a[3] = bitrev8(a[3]);
475 }
476
477 /* ------------------------------------------------------------------------- *
478 *
479 * cursor stuff
480 *
481 * ------------------------------------------------------------------------- */
482
483 /**
484 * rivafb_load_cursor_image - load cursor image to hardware
485 * @data: address to monochrome bitmap (1 = foreground color, 0 = background)
486 * @par: pointer to private data
487 * @w: width of cursor image in pixels
488 * @h: height of cursor image in scanlines
489 * @bg: background color (ARGB1555) - alpha bit determines opacity
490 * @fg: foreground color (ARGB1555)
491 *
492 * DESCRIPTiON:
493 * Loads cursor image based on a monochrome source and mask bitmap. The
494 * image bits determines the color of the pixel, 0 for background, 1 for
495 * foreground. Only the affected region (as determined by @w and @h
496 * parameters) will be updated.
497 *
498 * CALLED FROM:
499 * rivafb_cursor()
500 */
501 static void rivafb_load_cursor_image(struct riva_par *par, u8 *data8,
502 u16 bg, u16 fg, u32 w, u32 h)
503 {
504 int i, j, k = 0;
505 u32 b, tmp;
506 u32 *data = (u32 *)data8;
507 bg = le16_to_cpu(bg);
508 fg = le16_to_cpu(fg);
509
510 w = (w + 1) & ~1;
511
512 for (i = 0; i < h; i++) {
513 b = *data++;
514 reverse_order(&b);
515
516 for (j = 0; j < w/2; j++) {
517 tmp = 0;
518 #if defined (__BIG_ENDIAN)
519 tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
520 b <<= 1;
521 tmp |= (b & (1 << 31)) ? fg : bg;
522 b <<= 1;
523 #else
524 tmp = (b & 1) ? fg : bg;
525 b >>= 1;
526 tmp |= (b & 1) ? fg << 16 : bg << 16;
527 b >>= 1;
528 #endif
529 writel(tmp, &par->riva.CURSOR[k++]);
530 }
531 k += (MAX_CURS - w)/2;
532 }
533 }
534
535 /* ------------------------------------------------------------------------- *
536 *
537 * general utility functions
538 *
539 * ------------------------------------------------------------------------- */
540
541 /**
542 * riva_wclut - set CLUT entry
543 * @chip: pointer to RIVA_HW_INST object
544 * @regnum: register number
545 * @red: red component
546 * @green: green component
547 * @blue: blue component
548 *
549 * DESCRIPTION:
550 * Sets color register @regnum.
551 *
552 * CALLED FROM:
553 * rivafb_setcolreg()
554 */
555 static void riva_wclut(RIVA_HW_INST *chip,
556 unsigned char regnum, unsigned char red,
557 unsigned char green, unsigned char blue)
558 {
559 VGA_WR08(chip->PDIO, 0x3c8, regnum);
560 VGA_WR08(chip->PDIO, 0x3c9, red);
561 VGA_WR08(chip->PDIO, 0x3c9, green);
562 VGA_WR08(chip->PDIO, 0x3c9, blue);
563 }
564
565 /**
566 * riva_rclut - read fromCLUT register
567 * @chip: pointer to RIVA_HW_INST object
568 * @regnum: register number
569 * @red: red component
570 * @green: green component
571 * @blue: blue component
572 *
573 * DESCRIPTION:
574 * Reads red, green, and blue from color register @regnum.
575 *
576 * CALLED FROM:
577 * rivafb_setcolreg()
578 */
579 static void riva_rclut(RIVA_HW_INST *chip,
580 unsigned char regnum, unsigned char *red,
581 unsigned char *green, unsigned char *blue)
582 {
583
584 VGA_WR08(chip->PDIO, 0x3c7, regnum);
585 *red = VGA_RD08(chip->PDIO, 0x3c9);
586 *green = VGA_RD08(chip->PDIO, 0x3c9);
587 *blue = VGA_RD08(chip->PDIO, 0x3c9);
588 }
589
590 /**
591 * riva_save_state - saves current chip state
592 * @par: pointer to riva_par object containing info for current riva board
593 * @regs: pointer to riva_regs object
594 *
595 * DESCRIPTION:
596 * Saves current chip state to @regs.
597 *
598 * CALLED FROM:
599 * rivafb_probe()
600 */
601 /* from GGI */
602 static void riva_save_state(struct riva_par *par, struct riva_regs *regs)
603 {
604 int i;
605
606 NVTRACE_ENTER();
607 par->riva.LockUnlock(&par->riva, 0);
608
609 par->riva.UnloadStateExt(&par->riva, &regs->ext);
610
611 regs->misc_output = MISCin(par);
612
613 for (i = 0; i < NUM_CRT_REGS; i++)
614 regs->crtc[i] = CRTCin(par, i);
615
616 for (i = 0; i < NUM_ATC_REGS; i++)
617 regs->attr[i] = ATTRin(par, i);
618
619 for (i = 0; i < NUM_GRC_REGS; i++)
620 regs->gra[i] = GRAin(par, i);
621
622 for (i = 0; i < NUM_SEQ_REGS; i++)
623 regs->seq[i] = SEQin(par, i);
624 NVTRACE_LEAVE();
625 }
626
627 /**
628 * riva_load_state - loads current chip state
629 * @par: pointer to riva_par object containing info for current riva board
630 * @regs: pointer to riva_regs object
631 *
632 * DESCRIPTION:
633 * Loads chip state from @regs.
634 *
635 * CALLED FROM:
636 * riva_load_video_mode()
637 * rivafb_probe()
638 * rivafb_remove()
639 */
640 /* from GGI */
641 static void riva_load_state(struct riva_par *par, struct riva_regs *regs)
642 {
643 RIVA_HW_STATE *state = &regs->ext;
644 int i;
645
646 NVTRACE_ENTER();
647 CRTCout(par, 0x11, 0x00);
648
649 par->riva.LockUnlock(&par->riva, 0);
650
651 par->riva.LoadStateExt(&par->riva, state);
652
653 MISCout(par, regs->misc_output);
654
655 for (i = 0; i < NUM_CRT_REGS; i++) {
656 switch (i) {
657 case 0x19:
658 case 0x20 ... 0x40:
659 break;
660 default:
661 CRTCout(par, i, regs->crtc[i]);
662 }
663 }
664
665 for (i = 0; i < NUM_ATC_REGS; i++)
666 ATTRout(par, i, regs->attr[i]);
667
668 for (i = 0; i < NUM_GRC_REGS; i++)
669 GRAout(par, i, regs->gra[i]);
670
671 for (i = 0; i < NUM_SEQ_REGS; i++)
672 SEQout(par, i, regs->seq[i]);
673 NVTRACE_LEAVE();
674 }
675
676 /**
677 * riva_load_video_mode - calculate timings
678 * @info: pointer to fb_info object containing info for current riva board
679 *
680 * DESCRIPTION:
681 * Calculate some timings and then send em off to riva_load_state().
682 *
683 * CALLED FROM:
684 * rivafb_set_par()
685 */
686 static int riva_load_video_mode(struct fb_info *info)
687 {
688 int bpp, width, hDisplaySize, hDisplay, hStart,
689 hEnd, hTotal, height, vDisplay, vStart, vEnd, vTotal, dotClock;
690 int hBlankStart, hBlankEnd, vBlankStart, vBlankEnd;
691 int rc;
692 struct riva_par *par = info->par;
693 struct riva_regs newmode;
694
695 NVTRACE_ENTER();
696 /* time to calculate */
697 rivafb_blank(FB_BLANK_NORMAL, info);
698
699 bpp = info->var.bits_per_pixel;
700 if (bpp == 16 && info->var.green.length == 5)
701 bpp = 15;
702 width = info->var.xres_virtual;
703 hDisplaySize = info->var.xres;
704 hDisplay = (hDisplaySize / 8) - 1;
705 hStart = (hDisplaySize + info->var.right_margin) / 8 - 1;
706 hEnd = (hDisplaySize + info->var.right_margin +
707 info->var.hsync_len) / 8 - 1;
708 hTotal = (hDisplaySize + info->var.right_margin +
709 info->var.hsync_len + info->var.left_margin) / 8 - 5;
710 hBlankStart = hDisplay;
711 hBlankEnd = hTotal + 4;
712
713 height = info->var.yres_virtual;
714 vDisplay = info->var.yres - 1;
715 vStart = info->var.yres + info->var.lower_margin - 1;
716 vEnd = info->var.yres + info->var.lower_margin +
717 info->var.vsync_len - 1;
718 vTotal = info->var.yres + info->var.lower_margin +
719 info->var.vsync_len + info->var.upper_margin + 2;
720 vBlankStart = vDisplay;
721 vBlankEnd = vTotal + 1;
722 dotClock = 1000000000 / info->var.pixclock;
723
724 memcpy(&newmode, &reg_template, sizeof(struct riva_regs));
725
726 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
727 vTotal |= 1;
728
729 if (par->FlatPanel) {
730 vStart = vTotal - 3;
731 vEnd = vTotal - 2;
732 vBlankStart = vStart;
733 hStart = hTotal - 3;
734 hEnd = hTotal - 2;
735 hBlankEnd = hTotal + 4;
736 }
737
738 newmode.crtc[0x0] = Set8Bits (hTotal);
739 newmode.crtc[0x1] = Set8Bits (hDisplay);
740 newmode.crtc[0x2] = Set8Bits (hBlankStart);
741 newmode.crtc[0x3] = SetBitField (hBlankEnd, 4: 0, 4:0) | SetBit (7);
742 newmode.crtc[0x4] = Set8Bits (hStart);
743 newmode.crtc[0x5] = SetBitField (hBlankEnd, 5: 5, 7:7)
744 | SetBitField (hEnd, 4: 0, 4:0);
745 newmode.crtc[0x6] = SetBitField (vTotal, 7: 0, 7:0);
746 newmode.crtc[0x7] = SetBitField (vTotal, 8: 8, 0:0)
747 | SetBitField (vDisplay, 8: 8, 1:1)
748 | SetBitField (vStart, 8: 8, 2:2)
749 | SetBitField (vBlankStart, 8: 8, 3:3)
750 | SetBit (4)
751 | SetBitField (vTotal, 9: 9, 5:5)
752 | SetBitField (vDisplay, 9: 9, 6:6)
753 | SetBitField (vStart, 9: 9, 7:7);
754 newmode.crtc[0x9] = SetBitField (vBlankStart, 9: 9, 5:5)
755 | SetBit (6);
756 newmode.crtc[0x10] = Set8Bits (vStart);
757 newmode.crtc[0x11] = SetBitField (vEnd, 3: 0, 3:0)
758 | SetBit (5);
759 newmode.crtc[0x12] = Set8Bits (vDisplay);
760 newmode.crtc[0x13] = (width / 8) * ((bpp + 1) / 8);
761 newmode.crtc[0x15] = Set8Bits (vBlankStart);
762 newmode.crtc[0x16] = Set8Bits (vBlankEnd);
763
764 newmode.ext.screen = SetBitField(hBlankEnd,6:6,4:4)
765 | SetBitField(vBlankStart,10:10,3:3)
766 | SetBitField(vStart,10:10,2:2)
767 | SetBitField(vDisplay,10:10,1:1)
768 | SetBitField(vTotal,10:10,0:0);
769 newmode.ext.horiz = SetBitField(hTotal,8:8,0:0)
770 | SetBitField(hDisplay,8:8,1:1)
771 | SetBitField(hBlankStart,8:8,2:2)
772 | SetBitField(hStart,8:8,3:3);
773 newmode.ext.extra = SetBitField(vTotal,11:11,0:0)
774 | SetBitField(vDisplay,11:11,2:2)
775 | SetBitField(vStart,11:11,4:4)
776 | SetBitField(vBlankStart,11:11,6:6);
777
778 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
779 int tmp = (hTotal >> 1) & ~1;
780 newmode.ext.interlace = Set8Bits(tmp);
781 newmode.ext.horiz |= SetBitField(tmp, 8:8,4:4);
782 } else
783 newmode.ext.interlace = 0xff; /* interlace off */
784
785 if (par->riva.Architecture >= NV_ARCH_10)
786 par->riva.CURSOR = (U032 __iomem *)(info->screen_base + par->riva.CursorStart);
787
788 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
789 newmode.misc_output &= ~0x40;
790 else
791 newmode.misc_output |= 0x40;
792 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
793 newmode.misc_output &= ~0x80;
794 else
795 newmode.misc_output |= 0x80;
796
797 rc = CalcStateExt(&par->riva, &newmode.ext, bpp, width,
798 hDisplaySize, height, dotClock);
799 if (rc)
800 goto out;
801
802 newmode.ext.scale = NV_RD32(par->riva.PRAMDAC, 0x00000848) &
803 0xfff000ff;
804 if (par->FlatPanel == 1) {
805 newmode.ext.pixel |= (1 << 7);
806 newmode.ext.scale |= (1 << 8);
807 }
808 if (par->SecondCRTC) {
809 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) &
810 ~0x00001000;
811 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) |
812 0x00001000;
813 newmode.ext.crtcOwner = 3;
814 newmode.ext.pllsel |= 0x20000800;
815 newmode.ext.vpll2 = newmode.ext.vpll;
816 } else if (par->riva.twoHeads) {
817 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) |
818 0x00001000;
819 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) &
820 ~0x00001000;
821 newmode.ext.crtcOwner = 0;
822 newmode.ext.vpll2 = NV_RD32(par->riva.PRAMDAC0, 0x00000520);
823 }
824 if (par->FlatPanel == 1) {
825 newmode.ext.pixel |= (1 << 7);
826 newmode.ext.scale |= (1 << 8);
827 }
828 newmode.ext.cursorConfig = 0x02000100;
829 par->current_state = newmode;
830 riva_load_state(par, &par->current_state);
831 par->riva.LockUnlock(&par->riva, 0); /* important for HW cursor */
832
833 out:
834 rivafb_blank(FB_BLANK_UNBLANK, info);
835 NVTRACE_LEAVE();
836
837 return rc;
838 }
839
840 static void riva_update_var(struct fb_var_screeninfo *var,
841 const struct fb_videomode *modedb)
842 {
843 NVTRACE_ENTER();
844 var->xres = var->xres_virtual = modedb->xres;
845 var->yres = modedb->yres;
846 if (var->yres_virtual < var->yres)
847 var->yres_virtual = var->yres;
848 var->xoffset = var->yoffset = 0;
849 var->pixclock = modedb->pixclock;
850 var->left_margin = modedb->left_margin;
851 var->right_margin = modedb->right_margin;
852 var->upper_margin = modedb->upper_margin;
853 var->lower_margin = modedb->lower_margin;
854 var->hsync_len = modedb->hsync_len;
855 var->vsync_len = modedb->vsync_len;
856 var->sync = modedb->sync;
857 var->vmode = modedb->vmode;
858 NVTRACE_LEAVE();
859 }
860
861 /**
862 * rivafb_do_maximize -
863 * @info: pointer to fb_info object containing info for current riva board
864 * @var:
865 * @nom:
866 * @den:
867 *
868 * DESCRIPTION:
869 * .
870 *
871 * RETURNS:
872 * -EINVAL on failure, 0 on success
873 *
874 *
875 * CALLED FROM:
876 * rivafb_check_var()
877 */
878 static int rivafb_do_maximize(struct fb_info *info,
879 struct fb_var_screeninfo *var,
880 int nom, int den)
881 {
882 static struct {
883 int xres, yres;
884 } modes[] = {
885 {1600, 1280},
886 {1280, 1024},
887 {1024, 768},
888 {800, 600},
889 {640, 480},
890 {-1, -1}
891 };
892 int i;
893
894 NVTRACE_ENTER();
895 /* use highest possible virtual resolution */
896 if (var->xres_virtual == -1 && var->yres_virtual == -1) {
897 printk(KERN_WARNING PFX
898 "using maximum available virtual resolution\n");
899 for (i = 0; modes[i].xres != -1; i++) {
900 if (modes[i].xres * nom / den * modes[i].yres <
901 info->fix.smem_len)
902 break;
903 }
904 if (modes[i].xres == -1) {
905 printk(KERN_ERR PFX
906 "could not find a virtual resolution that fits into video memory!!\n");
907 NVTRACE("EXIT - EINVAL error\n");
908 return -EINVAL;
909 }
910 var->xres_virtual = modes[i].xres;
911 var->yres_virtual = modes[i].yres;
912
913 printk(KERN_INFO PFX
914 "virtual resolution set to maximum of %dx%d\n",
915 var->xres_virtual, var->yres_virtual);
916 } else if (var->xres_virtual == -1) {
917 var->xres_virtual = (info->fix.smem_len * den /
918 (nom * var->yres_virtual)) & ~15;
919 printk(KERN_WARNING PFX
920 "setting virtual X resolution to %d\n", var->xres_virtual);
921 } else if (var->yres_virtual == -1) {
922 var->xres_virtual = (var->xres_virtual + 15) & ~15;
923 var->yres_virtual = info->fix.smem_len * den /
924 (nom * var->xres_virtual);
925 printk(KERN_WARNING PFX
926 "setting virtual Y resolution to %d\n", var->yres_virtual);
927 } else {
928 var->xres_virtual = (var->xres_virtual + 15) & ~15;
929 if (var->xres_virtual * nom / den * var->yres_virtual > info->fix.smem_len) {
930 printk(KERN_ERR PFX
931 "mode %dx%dx%d rejected...resolution too high to fit into video memory!\n",
932 var->xres, var->yres, var->bits_per_pixel);
933 NVTRACE("EXIT - EINVAL error\n");
934 return -EINVAL;
935 }
936 }
937
938 if (var->xres_virtual * nom / den >= 8192) {
939 printk(KERN_WARNING PFX
940 "virtual X resolution (%d) is too high, lowering to %d\n",
941 var->xres_virtual, 8192 * den / nom - 16);
942 var->xres_virtual = 8192 * den / nom - 16;
943 }
944
945 if (var->xres_virtual < var->xres) {
946 printk(KERN_ERR PFX
947 "virtual X resolution (%d) is smaller than real\n", var->xres_virtual);
948 return -EINVAL;
949 }
950
951 if (var->yres_virtual < var->yres) {
952 printk(KERN_ERR PFX
953 "virtual Y resolution (%d) is smaller than real\n", var->yres_virtual);
954 return -EINVAL;
955 }
956 if (var->yres_virtual > 0x7fff/nom)
957 var->yres_virtual = 0x7fff/nom;
958 if (var->xres_virtual > 0x7fff/nom)
959 var->xres_virtual = 0x7fff/nom;
960 NVTRACE_LEAVE();
961 return 0;
962 }
963
964 static void
965 riva_set_pattern(struct riva_par *par, int clr0, int clr1, int pat0, int pat1)
966 {
967 RIVA_FIFO_FREE(par->riva, Patt, 4);
968 NV_WR32(&par->riva.Patt->Color0, 0, clr0);
969 NV_WR32(&par->riva.Patt->Color1, 0, clr1);
970 NV_WR32(par->riva.Patt->Monochrome, 0, pat0);
971 NV_WR32(par->riva.Patt->Monochrome, 4, pat1);
972 }
973
974 /* acceleration routines */
975 static inline void wait_for_idle(struct riva_par *par)
976 {
977 while (par->riva.Busy(&par->riva));
978 }
979
980 /*
981 * Set ROP. Translate X rop into ROP3. Internal routine.
982 */
983 static void
984 riva_set_rop_solid(struct riva_par *par, int rop)
985 {
986 riva_set_pattern(par, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
987 RIVA_FIFO_FREE(par->riva, Rop, 1);
988 NV_WR32(&par->riva.Rop->Rop3, 0, rop);
989
990 }
991
992 static void riva_setup_accel(struct fb_info *info)
993 {
994 struct riva_par *par = info->par;
995
996 RIVA_FIFO_FREE(par->riva, Clip, 2);
997 NV_WR32(&par->riva.Clip->TopLeft, 0, 0x0);
998 NV_WR32(&par->riva.Clip->WidthHeight, 0,
999 (info->var.xres_virtual & 0xffff) |
1000 (info->var.yres_virtual << 16));
1001 riva_set_rop_solid(par, 0xcc);
1002 wait_for_idle(par);
1003 }
1004
1005 /**
1006 * riva_get_cmap_len - query current color map length
1007 * @var: standard kernel fb changeable data
1008 *
1009 * DESCRIPTION:
1010 * Get current color map length.
1011 *
1012 * RETURNS:
1013 * Length of color map
1014 *
1015 * CALLED FROM:
1016 * rivafb_setcolreg()
1017 */
1018 static int riva_get_cmap_len(const struct fb_var_screeninfo *var)
1019 {
1020 int rc = 256; /* reasonable default */
1021
1022 switch (var->green.length) {
1023 case 8:
1024 rc = 256; /* 256 entries (2^8), 8 bpp and RGB8888 */
1025 break;
1026 case 5:
1027 rc = 32; /* 32 entries (2^5), 16 bpp, RGB555 */
1028 break;
1029 case 6:
1030 rc = 64; /* 64 entries (2^6), 16 bpp, RGB565 */
1031 break;
1032 default:
1033 /* should not occur */
1034 break;
1035 }
1036 return rc;
1037 }
1038
1039 /* ------------------------------------------------------------------------- *
1040 *
1041 * framebuffer operations
1042 *
1043 * ------------------------------------------------------------------------- */
1044
1045 static int rivafb_open(struct fb_info *info, int user)
1046 {
1047 struct riva_par *par = info->par;
1048
1049 NVTRACE_ENTER();
1050 mutex_lock(&par->open_lock);
1051 if (!par->ref_count) {
1052 #ifdef CONFIG_X86
1053 memset(&par->state, 0, sizeof(struct vgastate));
1054 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
1055 /* save the DAC for Riva128 */
1056 if (par->riva.Architecture == NV_ARCH_03)
1057 par->state.flags |= VGA_SAVE_CMAP;
1058 save_vga(&par->state);
1059 #endif
1060 /* vgaHWunlock() + riva unlock (0x7F) */
1061 CRTCout(par, 0x11, 0xFF);
1062 par->riva.LockUnlock(&par->riva, 0);
1063
1064 riva_save_state(par, &par->initial_state);
1065 }
1066 par->ref_count++;
1067 mutex_unlock(&par->open_lock);
1068 NVTRACE_LEAVE();
1069 return 0;
1070 }
1071
1072 static int rivafb_release(struct fb_info *info, int user)
1073 {
1074 struct riva_par *par = info->par;
1075
1076 NVTRACE_ENTER();
1077 mutex_lock(&par->open_lock);
1078 if (!par->ref_count) {
1079 mutex_unlock(&par->open_lock);
1080 return -EINVAL;
1081 }
1082 if (par->ref_count == 1) {
1083 par->riva.LockUnlock(&par->riva, 0);
1084 par->riva.LoadStateExt(&par->riva, &par->initial_state.ext);
1085 riva_load_state(par, &par->initial_state);
1086 #ifdef CONFIG_X86
1087 restore_vga(&par->state);
1088 #endif
1089 par->riva.LockUnlock(&par->riva, 1);
1090 }
1091 par->ref_count--;
1092 mutex_unlock(&par->open_lock);
1093 NVTRACE_LEAVE();
1094 return 0;
1095 }
1096
1097 static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1098 {
1099 const struct fb_videomode *mode;
1100 struct riva_par *par = info->par;
1101 int nom, den; /* translating from pixels->bytes */
1102 int mode_valid = 0;
1103
1104 NVTRACE_ENTER();
1105 switch (var->bits_per_pixel) {
1106 case 1 ... 8:
1107 var->red.offset = var->green.offset = var->blue.offset = 0;
1108 var->red.length = var->green.length = var->blue.length = 8;
1109 var->bits_per_pixel = 8;
1110 nom = den = 1;
1111 break;
1112 case 9 ... 15:
1113 var->green.length = 5;
1114 /* fall through */
1115 case 16:
1116 var->bits_per_pixel = 16;
1117 /* The Riva128 supports RGB555 only */
1118 if (par->riva.Architecture == NV_ARCH_03)
1119 var->green.length = 5;
1120 if (var->green.length == 5) {
1121 /* 0rrrrrgg gggbbbbb */
1122 var->red.offset = 10;
1123 var->green.offset = 5;
1124 var->blue.offset = 0;
1125 var->red.length = 5;
1126 var->green.length = 5;
1127 var->blue.length = 5;
1128 } else {
1129 /* rrrrrggg gggbbbbb */
1130 var->red.offset = 11;
1131 var->green.offset = 5;
1132 var->blue.offset = 0;
1133 var->red.length = 5;
1134 var->green.length = 6;
1135 var->blue.length = 5;
1136 }
1137 nom = 2;
1138 den = 1;
1139 break;
1140 case 17 ... 32:
1141 var->red.length = var->green.length = var->blue.length = 8;
1142 var->bits_per_pixel = 32;
1143 var->red.offset = 16;
1144 var->green.offset = 8;
1145 var->blue.offset = 0;
1146 nom = 4;
1147 den = 1;
1148 break;
1149 default:
1150 printk(KERN_ERR PFX
1151 "mode %dx%dx%d rejected...color depth not supported.\n",
1152 var->xres, var->yres, var->bits_per_pixel);
1153 NVTRACE("EXIT, returning -EINVAL\n");
1154 return -EINVAL;
1155 }
1156
1157 if (!strictmode) {
1158 if (!info->monspecs.vfmax || !info->monspecs.hfmax ||
1159 !info->monspecs.dclkmax || !fb_validate_mode(var, info))
1160 mode_valid = 1;
1161 }
1162
1163 /* calculate modeline if supported by monitor */
1164 if (!mode_valid && info->monspecs.gtf) {
1165 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
1166 mode_valid = 1;
1167 }
1168
1169 if (!mode_valid) {
1170 mode = fb_find_best_mode(var, &info->modelist);
1171 if (mode) {
1172 riva_update_var(var, mode);
1173 mode_valid = 1;
1174 }
1175 }
1176
1177 if (!mode_valid && info->monspecs.modedb_len)
1178 return -EINVAL;
1179
1180 if (var->xres_virtual < var->xres)
1181 var->xres_virtual = var->xres;
1182 if (var->yres_virtual <= var->yres)
1183 var->yres_virtual = -1;
1184 if (rivafb_do_maximize(info, var, nom, den) < 0)
1185 return -EINVAL;
1186
1187 if (var->xoffset < 0)
1188 var->xoffset = 0;
1189 if (var->yoffset < 0)
1190 var->yoffset = 0;
1191
1192 /* truncate xoffset and yoffset to maximum if too high */
1193 if (var->xoffset > var->xres_virtual - var->xres)
1194 var->xoffset = var->xres_virtual - var->xres - 1;
1195
1196 if (var->yoffset > var->yres_virtual - var->yres)
1197 var->yoffset = var->yres_virtual - var->yres - 1;
1198
1199 var->red.msb_right =
1200 var->green.msb_right =
1201 var->blue.msb_right =
1202 var->transp.offset = var->transp.length = var->transp.msb_right = 0;
1203 NVTRACE_LEAVE();
1204 return 0;
1205 }
1206
1207 static int rivafb_set_par(struct fb_info *info)
1208 {
1209 struct riva_par *par = info->par;
1210 int rc = 0;
1211
1212 NVTRACE_ENTER();
1213 /* vgaHWunlock() + riva unlock (0x7F) */
1214 CRTCout(par, 0x11, 0xFF);
1215 par->riva.LockUnlock(&par->riva, 0);
1216 rc = riva_load_video_mode(info);
1217 if (rc)
1218 goto out;
1219 if(!(info->flags & FBINFO_HWACCEL_DISABLED))
1220 riva_setup_accel(info);
1221
1222 par->cursor_reset = 1;
1223 info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3));
1224 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1225 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1226
1227 if (info->flags & FBINFO_HWACCEL_DISABLED)
1228 info->pixmap.scan_align = 1;
1229 else
1230 info->pixmap.scan_align = 4;
1231
1232 out:
1233 NVTRACE_LEAVE();
1234 return rc;
1235 }
1236
1237 /**
1238 * rivafb_pan_display
1239 * @var: standard kernel fb changeable data
1240 * @con: TODO
1241 * @info: pointer to fb_info object containing info for current riva board
1242 *
1243 * DESCRIPTION:
1244 * Pan (or wrap, depending on the `vmode' field) the display using the
1245 * `xoffset' and `yoffset' fields of the `var' structure.
1246 * If the values don't fit, return -EINVAL.
1247 *
1248 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
1249 */
1250 static int rivafb_pan_display(struct fb_var_screeninfo *var,
1251 struct fb_info *info)
1252 {
1253 struct riva_par *par = info->par;
1254 unsigned int base;
1255
1256 NVTRACE_ENTER();
1257 base = var->yoffset * info->fix.line_length + var->xoffset;
1258 par->riva.SetStartAddress(&par->riva, base);
1259 NVTRACE_LEAVE();
1260 return 0;
1261 }
1262
1263 static int rivafb_blank(int blank, struct fb_info *info)
1264 {
1265 struct riva_par *par= info->par;
1266 unsigned char tmp, vesa;
1267
1268 tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */
1269 vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */
1270
1271 NVTRACE_ENTER();
1272
1273 if (blank)
1274 tmp |= 0x20;
1275
1276 switch (blank) {
1277 case FB_BLANK_UNBLANK:
1278 case FB_BLANK_NORMAL:
1279 break;
1280 case FB_BLANK_VSYNC_SUSPEND:
1281 vesa |= 0x80;
1282 break;
1283 case FB_BLANK_HSYNC_SUSPEND:
1284 vesa |= 0x40;
1285 break;
1286 case FB_BLANK_POWERDOWN:
1287 vesa |= 0xc0;
1288 break;
1289 }
1290
1291 SEQout(par, 0x01, tmp);
1292 CRTCout(par, 0x1a, vesa);
1293
1294 NVTRACE_LEAVE();
1295
1296 return 0;
1297 }
1298
1299 /**
1300 * rivafb_setcolreg
1301 * @regno: register index
1302 * @red: red component
1303 * @green: green component
1304 * @blue: blue component
1305 * @transp: transparency
1306 * @info: pointer to fb_info object containing info for current riva board
1307 *
1308 * DESCRIPTION:
1309 * Set a single color register. The values supplied have a 16 bit
1310 * magnitude.
1311 *
1312 * RETURNS:
1313 * Return != 0 for invalid regno.
1314 *
1315 * CALLED FROM:
1316 * fbcmap.c:fb_set_cmap()
1317 */
1318 static int rivafb_setcolreg(unsigned regno, unsigned red, unsigned green,
1319 unsigned blue, unsigned transp,
1320 struct fb_info *info)
1321 {
1322 struct riva_par *par = info->par;
1323 RIVA_HW_INST *chip = &par->riva;
1324 int i;
1325
1326 if (regno >= riva_get_cmap_len(&info->var))
1327 return -EINVAL;
1328
1329 if (info->var.grayscale) {
1330 /* gray = 0.30*R + 0.59*G + 0.11*B */
1331 red = green = blue =
1332 (red * 77 + green * 151 + blue * 28) >> 8;
1333 }
1334
1335 if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
1336 ((u32 *) info->pseudo_palette)[regno] =
1337 (regno << info->var.red.offset) |
1338 (regno << info->var.green.offset) |
1339 (regno << info->var.blue.offset);
1340 /*
1341 * The Riva128 2D engine requires color information in
1342 * TrueColor format even if framebuffer is in DirectColor
1343 */
1344 if (par->riva.Architecture == NV_ARCH_03) {
1345 switch (info->var.bits_per_pixel) {
1346 case 16:
1347 par->palette[regno] = ((red & 0xf800) >> 1) |
1348 ((green & 0xf800) >> 6) |
1349 ((blue & 0xf800) >> 11);
1350 break;
1351 case 32:
1352 par->palette[regno] = ((red & 0xff00) << 8) |
1353 ((green & 0xff00)) |
1354 ((blue & 0xff00) >> 8);
1355 break;
1356 }
1357 }
1358 }
1359
1360 switch (info->var.bits_per_pixel) {
1361 case 8:
1362 /* "transparent" stuff is completely ignored. */
1363 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1364 break;
1365 case 16:
1366 if (info->var.green.length == 5) {
1367 for (i = 0; i < 8; i++) {
1368 riva_wclut(chip, regno*8+i, red >> 8,
1369 green >> 8, blue >> 8);
1370 }
1371 } else {
1372 u8 r, g, b;
1373
1374 if (regno < 32) {
1375 for (i = 0; i < 8; i++) {
1376 riva_wclut(chip, regno*8+i,
1377 red >> 8, green >> 8,
1378 blue >> 8);
1379 }
1380 }
1381 riva_rclut(chip, regno*4, &r, &g, &b);
1382 for (i = 0; i < 4; i++)
1383 riva_wclut(chip, regno*4+i, r,
1384 green >> 8, b);
1385 }
1386 break;
1387 case 32:
1388 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8);
1389 break;
1390 default:
1391 /* do nothing */
1392 break;
1393 }
1394 return 0;
1395 }
1396
1397 /**
1398 * rivafb_fillrect - hardware accelerated color fill function
1399 * @info: pointer to fb_info structure
1400 * @rect: pointer to fb_fillrect structure
1401 *
1402 * DESCRIPTION:
1403 * This function fills up a region of framebuffer memory with a solid
1404 * color with a choice of two different ROP's, copy or invert.
1405 *
1406 * CALLED FROM:
1407 * framebuffer hook
1408 */
1409 static void rivafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
1410 {
1411 struct riva_par *par = info->par;
1412 u_int color, rop = 0;
1413
1414 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1415 cfb_fillrect(info, rect);
1416 return;
1417 }
1418
1419 if (info->var.bits_per_pixel == 8)
1420 color = rect->color;
1421 else {
1422 if (par->riva.Architecture != NV_ARCH_03)
1423 color = ((u32 *)info->pseudo_palette)[rect->color];
1424 else
1425 color = par->palette[rect->color];
1426 }
1427
1428 switch (rect->rop) {
1429 case ROP_XOR:
1430 rop = 0x66;
1431 break;
1432 case ROP_COPY:
1433 default:
1434 rop = 0xCC;
1435 break;
1436 }
1437
1438 riva_set_rop_solid(par, rop);
1439
1440 RIVA_FIFO_FREE(par->riva, Bitmap, 1);
1441 NV_WR32(&par->riva.Bitmap->Color1A, 0, color);
1442
1443 RIVA_FIFO_FREE(par->riva, Bitmap, 2);
1444 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].TopLeft, 0,
1445 (rect->dx << 16) | rect->dy);
1446 mb();
1447 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].WidthHeight, 0,
1448 (rect->width << 16) | rect->height);
1449 mb();
1450 riva_set_rop_solid(par, 0xcc);
1451
1452 }
1453
1454 /**
1455 * rivafb_copyarea - hardware accelerated blit function
1456 * @info: pointer to fb_info structure
1457 * @region: pointer to fb_copyarea structure
1458 *
1459 * DESCRIPTION:
1460 * This copies an area of pixels from one location to another
1461 *
1462 * CALLED FROM:
1463 * framebuffer hook
1464 */
1465 static void rivafb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
1466 {
1467 struct riva_par *par = info->par;
1468
1469 if ((info->flags & FBINFO_HWACCEL_DISABLED)) {
1470 cfb_copyarea(info, region);
1471 return;
1472 }
1473
1474 RIVA_FIFO_FREE(par->riva, Blt, 3);
1475 NV_WR32(&par->riva.Blt->TopLeftSrc, 0,
1476 (region->sy << 16) | region->sx);
1477 NV_WR32(&par->riva.Blt->TopLeftDst, 0,
1478 (region->dy << 16) | region->dx);
1479 mb();
1480 NV_WR32(&par->riva.Blt->WidthHeight, 0,
1481 (region->height << 16) | region->width);
1482 mb();
1483 }
1484
1485 static inline void convert_bgcolor_16(u32 *col)
1486 {
1487 *col = ((*col & 0x0000F800) << 8)
1488 | ((*col & 0x00007E0) << 5)
1489 | ((*col & 0x0000001F) << 3)
1490 | 0xFF000000;
1491 mb();
1492 }
1493
1494 /**
1495 * rivafb_imageblit: hardware accelerated color expand function
1496 * @info: pointer to fb_info structure
1497 * @image: pointer to fb_image structure
1498 *
1499 * DESCRIPTION:
1500 * If the source is a monochrome bitmap, the function fills up a a region
1501 * of framebuffer memory with pixels whose color is determined by the bit
1502 * setting of the bitmap, 1 - foreground, 0 - background.
1503 *
1504 * If the source is not a monochrome bitmap, color expansion is not done.
1505 * In this case, it is channeled to a software function.
1506 *
1507 * CALLED FROM:
1508 * framebuffer hook
1509 */
1510 static void rivafb_imageblit(struct fb_info *info,
1511 const struct fb_image *image)
1512 {
1513 struct riva_par *par = info->par;
1514 u32 fgx = 0, bgx = 0, width, tmp;
1515 u8 *cdat = (u8 *) image->data;
1516 volatile u32 __iomem *d;
1517 int i, size;
1518
1519 if ((info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1) {
1520 cfb_imageblit(info, image);
1521 return;
1522 }
1523
1524 switch (info->var.bits_per_pixel) {
1525 case 8:
1526 fgx = image->fg_color;
1527 bgx = image->bg_color;
1528 break;
1529 case 16:
1530 case 32:
1531 if (par->riva.Architecture != NV_ARCH_03) {
1532 fgx = ((u32 *)info->pseudo_palette)[image->fg_color];
1533 bgx = ((u32 *)info->pseudo_palette)[image->bg_color];
1534 } else {
1535 fgx = par->palette[image->fg_color];
1536 bgx = par->palette[image->bg_color];
1537 }
1538 if (info->var.green.length == 6)
1539 convert_bgcolor_16(&bgx);
1540 break;
1541 }
1542
1543 RIVA_FIFO_FREE(par->riva, Bitmap, 7);
1544 NV_WR32(&par->riva.Bitmap->ClipE.TopLeft, 0,
1545 (image->dy << 16) | (image->dx & 0xFFFF));
1546 NV_WR32(&par->riva.Bitmap->ClipE.BottomRight, 0,
1547 (((image->dy + image->height) << 16) |
1548 ((image->dx + image->width) & 0xffff)));
1549 NV_WR32(&par->riva.Bitmap->Color0E, 0, bgx);
1550 NV_WR32(&par->riva.Bitmap->Color1E, 0, fgx);
1551 NV_WR32(&par->riva.Bitmap->WidthHeightInE, 0,
1552 (image->height << 16) | ((image->width + 31) & ~31));
1553 NV_WR32(&par->riva.Bitmap->WidthHeightOutE, 0,
1554 (image->height << 16) | ((image->width + 31) & ~31));
1555 NV_WR32(&par->riva.Bitmap->PointE, 0,
1556 (image->dy << 16) | (image->dx & 0xFFFF));
1557
1558 d = &par->riva.Bitmap->MonochromeData01E;
1559
1560 width = (image->width + 31)/32;
1561 size = width * image->height;
1562 while (size >= 16) {
1563 RIVA_FIFO_FREE(par->riva, Bitmap, 16);
1564 for (i = 0; i < 16; i++) {
1565 tmp = *((u32 *)cdat);
1566 cdat = (u8 *)((u32 *)cdat + 1);
1567 reverse_order(&tmp);
1568 NV_WR32(d, i*4, tmp);
1569 }
1570 size -= 16;
1571 }
1572 if (size) {
1573 RIVA_FIFO_FREE(par->riva, Bitmap, size);
1574 for (i = 0; i < size; i++) {
1575 tmp = *((u32 *) cdat);
1576 cdat = (u8 *)((u32 *)cdat + 1);
1577 reverse_order(&tmp);
1578 NV_WR32(d, i*4, tmp);
1579 }
1580 }
1581 }
1582
1583 /**
1584 * rivafb_cursor - hardware cursor function
1585 * @info: pointer to info structure
1586 * @cursor: pointer to fbcursor structure
1587 *
1588 * DESCRIPTION:
1589 * A cursor function that supports displaying a cursor image via hardware.
1590 * Within the kernel, copy and invert rops are supported. If exported
1591 * to user space, only the copy rop will be supported.
1592 *
1593 * CALLED FROM
1594 * framebuffer hook
1595 */
1596 static int rivafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1597 {
1598 struct riva_par *par = info->par;
1599 u8 data[MAX_CURS * MAX_CURS/8];
1600 int i, set = cursor->set;
1601 u16 fg, bg;
1602
1603 if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
1604 return -ENXIO;
1605
1606 par->riva.ShowHideCursor(&par->riva, 0);
1607
1608 if (par->cursor_reset) {
1609 set = FB_CUR_SETALL;
1610 par->cursor_reset = 0;
1611 }
1612
1613 if (set & FB_CUR_SETSIZE)
1614 memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2);
1615
1616 if (set & FB_CUR_SETPOS) {
1617 u32 xx, yy, temp;
1618
1619 yy = cursor->image.dy - info->var.yoffset;
1620 xx = cursor->image.dx - info->var.xoffset;
1621 temp = xx & 0xFFFF;
1622 temp |= yy << 16;
1623
1624 NV_WR32(par->riva.PRAMDAC, 0x0000300, temp);
1625 }
1626
1627
1628 if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
1629 u32 bg_idx = cursor->image.bg_color;
1630 u32 fg_idx = cursor->image.fg_color;
1631 u32 s_pitch = (cursor->image.width+7) >> 3;
1632 u32 d_pitch = MAX_CURS/8;
1633 u8 *dat = (u8 *) cursor->image.data;
1634 u8 *msk = (u8 *) cursor->mask;
1635 u8 *src;
1636
1637 src = kmalloc(s_pitch * cursor->image.height, GFP_ATOMIC);
1638
1639 if (src) {
1640 switch (cursor->rop) {
1641 case ROP_XOR:
1642 for (i = 0; i < s_pitch * cursor->image.height; i++)
1643 src[i] = dat[i] ^ msk[i];
1644 break;
1645 case ROP_COPY:
1646 default:
1647 for (i = 0; i < s_pitch * cursor->image.height; i++)
1648 src[i] = dat[i] & msk[i];
1649 break;
1650 }
1651
1652 fb_pad_aligned_buffer(data, d_pitch, src, s_pitch,
1653 cursor->image.height);
1654
1655 bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
1656 ((info->cmap.green[bg_idx] & 0xf8) << 2) |
1657 ((info->cmap.blue[bg_idx] & 0xf8) >> 3) |
1658 1 << 15;
1659
1660 fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
1661 ((info->cmap.green[fg_idx] & 0xf8) << 2) |
1662 ((info->cmap.blue[fg_idx] & 0xf8) >> 3) |
1663 1 << 15;
1664
1665 par->riva.LockUnlock(&par->riva, 0);
1666
1667 rivafb_load_cursor_image(par, data, bg, fg,
1668 cursor->image.width,
1669 cursor->image.height);
1670 kfree(src);
1671 }
1672 }
1673
1674 if (cursor->enable)
1675 par->riva.ShowHideCursor(&par->riva, 1);
1676
1677 return 0;
1678 }
1679
1680 static int rivafb_sync(struct fb_info *info)
1681 {
1682 struct riva_par *par = info->par;
1683
1684 wait_for_idle(par);
1685 return 0;
1686 }
1687
1688 /* ------------------------------------------------------------------------- *
1689 *
1690 * initialization helper functions
1691 *
1692 * ------------------------------------------------------------------------- */
1693
1694 /* kernel interface */
1695 static struct fb_ops riva_fb_ops = {
1696 .owner = THIS_MODULE,
1697 .fb_open = rivafb_open,
1698 .fb_release = rivafb_release,
1699 .fb_check_var = rivafb_check_var,
1700 .fb_set_par = rivafb_set_par,
1701 .fb_setcolreg = rivafb_setcolreg,
1702 .fb_pan_display = rivafb_pan_display,
1703 .fb_blank = rivafb_blank,
1704 .fb_fillrect = rivafb_fillrect,
1705 .fb_copyarea = rivafb_copyarea,
1706 .fb_imageblit = rivafb_imageblit,
1707 .fb_cursor = rivafb_cursor,
1708 .fb_sync = rivafb_sync,
1709 };
1710
1711 static int __devinit riva_set_fbinfo(struct fb_info *info)
1712 {
1713 unsigned int cmap_len;
1714 struct riva_par *par = info->par;
1715
1716 NVTRACE_ENTER();
1717 info->flags = FBINFO_DEFAULT
1718 | FBINFO_HWACCEL_XPAN
1719 | FBINFO_HWACCEL_YPAN
1720 | FBINFO_HWACCEL_COPYAREA
1721 | FBINFO_HWACCEL_FILLRECT
1722 | FBINFO_HWACCEL_IMAGEBLIT;
1723
1724 /* Accel seems to not work properly on NV30 yet...*/
1725 if ((par->riva.Architecture == NV_ARCH_30) || noaccel) {
1726 printk(KERN_DEBUG PFX "disabling acceleration\n");
1727 info->flags |= FBINFO_HWACCEL_DISABLED;
1728 }
1729
1730 info->var = rivafb_default_var;
1731 info->fix.visual = (info->var.bits_per_pixel == 8) ?
1732 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1733
1734 info->pseudo_palette = par->pseudo_palette;
1735
1736 cmap_len = riva_get_cmap_len(&info->var);
1737 fb_alloc_cmap(&info->cmap, cmap_len, 0);
1738
1739 info->pixmap.size = 8 * 1024;
1740 info->pixmap.buf_align = 4;
1741 info->pixmap.access_align = 32;
1742 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1743 info->var.yres_virtual = -1;
1744 NVTRACE_LEAVE();
1745 return (rivafb_check_var(&info->var, info));
1746 }
1747
1748 #ifdef CONFIG_PPC_OF
1749 static int __devinit riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd)
1750 {
1751 struct riva_par *par = info->par;
1752 struct device_node *dp;
1753 const unsigned char *pedid = NULL;
1754 const unsigned char *disptype = NULL;
1755 static char *propnames[] = {
1756 "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL };
1757 int i;
1758
1759 NVTRACE_ENTER();
1760 dp = pci_device_to_OF_node(pd);
1761 for (; dp != NULL; dp = dp->child) {
1762 disptype = of_get_property(dp, "display-type", NULL);
1763 if (disptype == NULL)
1764 continue;
1765 if (strncmp(disptype, "LCD", 3) != 0)
1766 continue;
1767 for (i = 0; propnames[i] != NULL; ++i) {
1768 pedid = of_get_property(dp, propnames[i], NULL);
1769 if (pedid != NULL) {
1770 par->EDID = (unsigned char *)pedid;
1771 NVTRACE("LCD found.\n");
1772 return 1;
1773 }
1774 }
1775 }
1776 NVTRACE_LEAVE();
1777 return 0;
1778 }
1779 #endif /* CONFIG_PPC_OF */
1780
1781 #if defined(CONFIG_FB_RIVA_I2C) && !defined(CONFIG_PPC_OF)
1782 static int __devinit riva_get_EDID_i2c(struct fb_info *info)
1783 {
1784 struct riva_par *par = info->par;
1785 struct fb_var_screeninfo var;
1786 int i;
1787
1788 NVTRACE_ENTER();
1789 riva_create_i2c_busses(par);
1790 for (i = 0; i < 3; i++) {
1791 if (!par->chan[i].par)
1792 continue;
1793 riva_probe_i2c_connector(par, i, &par->EDID);
1794 if (par->EDID && !fb_parse_edid(par->EDID, &var)) {
1795 printk(PFX "Found EDID Block from BUS %i\n", i);
1796 break;
1797 }
1798 }
1799
1800 NVTRACE_LEAVE();
1801 return (par->EDID) ? 1 : 0;
1802 }
1803 #endif /* CONFIG_FB_RIVA_I2C */
1804
1805 static void __devinit riva_update_default_var(struct fb_var_screeninfo *var,
1806 struct fb_info *info)
1807 {
1808 struct fb_monspecs *specs = &info->monspecs;
1809 struct fb_videomode modedb;
1810
1811 NVTRACE_ENTER();
1812 /* respect mode options */
1813 if (mode_option) {
1814 fb_find_mode(var, info, mode_option,
1815 specs->modedb, specs->modedb_len,
1816 NULL, 8);
1817 } else if (specs->modedb != NULL) {
1818 /* get preferred timing */
1819 if (info->monspecs.misc & FB_MISC_1ST_DETAIL) {
1820 int i;
1821
1822 for (i = 0; i < specs->modedb_len; i++) {
1823 if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
1824 modedb = specs->modedb[i];
1825 break;
1826 }
1827 }
1828 } else {
1829 /* otherwise, get first mode in database */
1830 modedb = specs->modedb[0];
1831 }
1832 var->bits_per_pixel = 8;
1833 riva_update_var(var, &modedb);
1834 }
1835 NVTRACE_LEAVE();
1836 }
1837
1838
1839 static void __devinit riva_get_EDID(struct fb_info *info, struct pci_dev *pdev)
1840 {
1841 NVTRACE_ENTER();
1842 #ifdef CONFIG_PPC_OF
1843 if (!riva_get_EDID_OF(info, pdev))
1844 printk(PFX "could not retrieve EDID from OF\n");
1845 #elif defined(CONFIG_FB_RIVA_I2C)
1846 if (!riva_get_EDID_i2c(info))
1847 printk(PFX "could not retrieve EDID from DDC/I2C\n");
1848 #endif
1849 NVTRACE_LEAVE();
1850 }
1851
1852
1853 static void __devinit riva_get_edidinfo(struct fb_info *info)
1854 {
1855 struct fb_var_screeninfo *var = &rivafb_default_var;
1856 struct riva_par *par = info->par;
1857
1858 fb_edid_to_monspecs(par->EDID, &info->monspecs);
1859 fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len,
1860 &info->modelist);
1861 riva_update_default_var(var, info);
1862
1863 /* if user specified flatpanel, we respect that */
1864 if (info->monspecs.input & FB_DISP_DDI)
1865 par->FlatPanel = 1;
1866 }
1867
1868 /* ------------------------------------------------------------------------- *
1869 *
1870 * PCI bus
1871 *
1872 * ------------------------------------------------------------------------- */
1873
1874 static u32 __devinit riva_get_arch(struct pci_dev *pd)
1875 {
1876 u32 arch = 0;
1877
1878 switch (pd->device & 0x0ff0) {
1879 case 0x0100: /* GeForce 256 */
1880 case 0x0110: /* GeForce2 MX */
1881 case 0x0150: /* GeForce2 */
1882 case 0x0170: /* GeForce4 MX */
1883 case 0x0180: /* GeForce4 MX (8x AGP) */
1884 case 0x01A0: /* nForce */
1885 case 0x01F0: /* nForce2 */
1886 arch = NV_ARCH_10;
1887 break;
1888 case 0x0200: /* GeForce3 */
1889 case 0x0250: /* GeForce4 Ti */
1890 case 0x0280: /* GeForce4 Ti (8x AGP) */
1891 arch = NV_ARCH_20;
1892 break;
1893 case 0x0300: /* GeForceFX 5800 */
1894 case 0x0310: /* GeForceFX 5600 */
1895 case 0x0320: /* GeForceFX 5200 */
1896 case 0x0330: /* GeForceFX 5900 */
1897 case 0x0340: /* GeForceFX 5700 */
1898 arch = NV_ARCH_30;
1899 break;
1900 case 0x0020: /* TNT, TNT2 */
1901 arch = NV_ARCH_04;
1902 break;
1903 case 0x0010: /* Riva128 */
1904 arch = NV_ARCH_03;
1905 break;
1906 default: /* unknown architecture */
1907 break;
1908 }
1909 return arch;
1910 }
1911
1912 static int __devinit rivafb_probe(struct pci_dev *pd,
1913 const struct pci_device_id *ent)
1914 {
1915 struct riva_par *default_par;
1916 struct fb_info *info;
1917 int ret;
1918
1919 NVTRACE_ENTER();
1920 assert(pd != NULL);
1921
1922 info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev);
1923 if (!info) {
1924 printk (KERN_ERR PFX "could not allocate memory\n");
1925 ret = -ENOMEM;
1926 goto err_ret;
1927 }
1928 default_par = info->par;
1929 default_par->pdev = pd;
1930
1931 info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
1932 if (info->pixmap.addr == NULL) {
1933 ret = -ENOMEM;
1934 goto err_framebuffer_release;
1935 }
1936
1937 ret = pci_enable_device(pd);
1938 if (ret < 0) {
1939 printk(KERN_ERR PFX "cannot enable PCI device\n");
1940 goto err_free_pixmap;
1941 }
1942
1943 ret = pci_request_regions(pd, "rivafb");
1944 if (ret < 0) {
1945 printk(KERN_ERR PFX "cannot request PCI regions\n");
1946 goto err_disable_device;
1947 }
1948
1949 mutex_init(&default_par->open_lock);
1950 default_par->riva.Architecture = riva_get_arch(pd);
1951
1952 default_par->Chipset = (pd->vendor << 16) | pd->device;
1953 printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset);
1954
1955 if(default_par->riva.Architecture == 0) {
1956 printk(KERN_ERR PFX "unknown NV_ARCH\n");
1957 ret=-ENODEV;
1958 goto err_release_region;
1959 }
1960 if(default_par->riva.Architecture == NV_ARCH_10 ||
1961 default_par->riva.Architecture == NV_ARCH_20 ||
1962 default_par->riva.Architecture == NV_ARCH_30) {
1963 sprintf(rivafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
1964 } else {
1965 sprintf(rivafb_fix.id, "NV%x", default_par->riva.Architecture);
1966 }
1967
1968 default_par->FlatPanel = flatpanel;
1969 if (flatpanel == 1)
1970 printk(KERN_INFO PFX "flatpanel support enabled\n");
1971 default_par->forceCRTC = forceCRTC;
1972
1973 rivafb_fix.mmio_len = pci_resource_len(pd, 0);
1974 rivafb_fix.smem_len = pci_resource_len(pd, 1);
1975
1976 {
1977 /* enable IO and mem if not already done */
1978 unsigned short cmd;
1979
1980 pci_read_config_word(pd, PCI_COMMAND, &cmd);
1981 cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
1982 pci_write_config_word(pd, PCI_COMMAND, cmd);
1983 }
1984
1985 rivafb_fix.mmio_start = pci_resource_start(pd, 0);
1986 rivafb_fix.smem_start = pci_resource_start(pd, 1);
1987
1988 default_par->ctrl_base = ioremap(rivafb_fix.mmio_start,
1989 rivafb_fix.mmio_len);
1990 if (!default_par->ctrl_base) {
1991 printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
1992 ret = -EIO;
1993 goto err_release_region;
1994 }
1995
1996 switch (default_par->riva.Architecture) {
1997 case NV_ARCH_03:
1998 /* Riva128's PRAMIN is in the "framebuffer" space
1999 * Since these cards were never made with more than 8 megabytes
2000 * we can safely allocate this separately.
2001 */
2002 default_par->riva.PRAMIN = ioremap(rivafb_fix.smem_start + 0x00C00000, 0x00008000);
2003 if (!default_par->riva.PRAMIN) {
2004 printk(KERN_ERR PFX "cannot ioremap PRAMIN region\n");
2005 ret = -EIO;
2006 goto err_iounmap_ctrl_base;
2007 }
2008 break;
2009 case NV_ARCH_04:
2010 case NV_ARCH_10:
2011 case NV_ARCH_20:
2012 case NV_ARCH_30:
2013 default_par->riva.PCRTC0 =
2014 (u32 __iomem *)(default_par->ctrl_base + 0x00600000);
2015 default_par->riva.PRAMIN =
2016 (u32 __iomem *)(default_par->ctrl_base + 0x00710000);
2017 break;
2018 }
2019 riva_common_setup(default_par);
2020
2021 if (default_par->riva.Architecture == NV_ARCH_03) {
2022 default_par->riva.PCRTC = default_par->riva.PCRTC0
2023 = default_par->riva.PGRAPH;
2024 }
2025
2026 rivafb_fix.smem_len = riva_get_memlen(default_par) * 1024;
2027 default_par->dclk_max = riva_get_maxdclk(default_par) * 1000;
2028 info->screen_base = ioremap(rivafb_fix.smem_start,
2029 rivafb_fix.smem_len);
2030 if (!info->screen_base) {
2031 printk(KERN_ERR PFX "cannot ioremap FB base\n");
2032 ret = -EIO;
2033 goto err_iounmap_pramin;
2034 }
2035
2036 #ifdef CONFIG_MTRR
2037 if (!nomtrr) {
2038 default_par->mtrr.vram = mtrr_add(rivafb_fix.smem_start,
2039 rivafb_fix.smem_len,
2040 MTRR_TYPE_WRCOMB, 1);
2041 if (default_par->mtrr.vram < 0) {
2042 printk(KERN_ERR PFX "unable to setup MTRR\n");
2043 } else {
2044 default_par->mtrr.vram_valid = 1;
2045 /* let there be speed */
2046 printk(KERN_INFO PFX "RIVA MTRR set to ON\n");
2047 }
2048 }
2049 #endif /* CONFIG_MTRR */
2050
2051 info->fbops = &riva_fb_ops;
2052 info->fix = rivafb_fix;
2053 riva_get_EDID(info, pd);
2054 riva_get_edidinfo(info);
2055
2056 ret=riva_set_fbinfo(info);
2057 if (ret < 0) {
2058 printk(KERN_ERR PFX "error setting initial video mode\n");
2059 goto err_iounmap_screen_base;
2060 }
2061
2062 fb_destroy_modedb(info->monspecs.modedb);
2063 info->monspecs.modedb = NULL;
2064
2065 pci_set_drvdata(pd, info);
2066
2067 if (backlight)
2068 riva_bl_init(info->par);
2069
2070 ret = register_framebuffer(info);
2071 if (ret < 0) {
2072 printk(KERN_ERR PFX
2073 "error registering riva framebuffer\n");
2074 goto err_iounmap_screen_base;
2075 }
2076
2077 printk(KERN_INFO PFX
2078 "PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n",
2079 info->fix.id,
2080 RIVAFB_VERSION,
2081 info->fix.smem_len / (1024 * 1024),
2082 info->fix.smem_start);
2083
2084 NVTRACE_LEAVE();
2085 return 0;
2086
2087 err_iounmap_screen_base:
2088 #ifdef CONFIG_FB_RIVA_I2C
2089 riva_delete_i2c_busses(info->par);
2090 #endif
2091 iounmap(info->screen_base);
2092 err_iounmap_pramin:
2093 if (default_par->riva.Architecture == NV_ARCH_03)
2094 iounmap(default_par->riva.PRAMIN);
2095 err_iounmap_ctrl_base:
2096 iounmap(default_par->ctrl_base);
2097 err_release_region:
2098 pci_release_regions(pd);
2099 err_disable_device:
2100 err_free_pixmap:
2101 kfree(info->pixmap.addr);
2102 err_framebuffer_release:
2103 framebuffer_release(info);
2104 err_ret:
2105 return ret;
2106 }
2107
2108 static void __devexit rivafb_remove(struct pci_dev *pd)
2109 {
2110 struct fb_info *info = pci_get_drvdata(pd);
2111 struct riva_par *par = info->par;
2112
2113 NVTRACE_ENTER();
2114
2115 #ifdef CONFIG_FB_RIVA_I2C
2116 riva_delete_i2c_busses(par);
2117 kfree(par->EDID);
2118 #endif
2119
2120 unregister_framebuffer(info);
2121
2122 riva_bl_exit(info);
2123
2124 #ifdef CONFIG_MTRR
2125 if (par->mtrr.vram_valid)
2126 mtrr_del(par->mtrr.vram, info->fix.smem_start,
2127 info->fix.smem_len);
2128 #endif /* CONFIG_MTRR */
2129
2130 iounmap(par->ctrl_base);
2131 iounmap(info->screen_base);
2132 if (par->riva.Architecture == NV_ARCH_03)
2133 iounmap(par->riva.PRAMIN);
2134 pci_release_regions(pd);
2135 kfree(info->pixmap.addr);
2136 framebuffer_release(info);
2137 pci_set_drvdata(pd, NULL);
2138 NVTRACE_LEAVE();
2139 }
2140
2141 /* ------------------------------------------------------------------------- *
2142 *
2143 * initialization
2144 *
2145 * ------------------------------------------------------------------------- */
2146
2147 #ifndef MODULE
2148 static int __devinit rivafb_setup(char *options)
2149 {
2150 char *this_opt;
2151
2152 NVTRACE_ENTER();
2153 if (!options || !*options)
2154 return 0;
2155
2156 while ((this_opt = strsep(&options, ",")) != NULL) {
2157 if (!strncmp(this_opt, "forceCRTC", 9)) {
2158 char *p;
2159
2160 p = this_opt + 9;
2161 if (!*p || !*(++p)) continue;
2162 forceCRTC = *p - '0';
2163 if (forceCRTC < 0 || forceCRTC > 1)
2164 forceCRTC = -1;
2165 } else if (!strncmp(this_opt, "flatpanel", 9)) {
2166 flatpanel = 1;
2167 } else if (!strncmp(this_opt, "backlight:", 10)) {
2168 backlight = simple_strtoul(this_opt+10, NULL, 0);
2169 #ifdef CONFIG_MTRR
2170 } else if (!strncmp(this_opt, "nomtrr", 6)) {
2171 nomtrr = 1;
2172 #endif
2173 } else if (!strncmp(this_opt, "strictmode", 10)) {
2174 strictmode = 1;
2175 } else if (!strncmp(this_opt, "noaccel", 7)) {
2176 noaccel = 1;
2177 } else
2178 mode_option = this_opt;
2179 }
2180 NVTRACE_LEAVE();
2181 return 0;
2182 }
2183 #endif /* !MODULE */
2184
2185 static struct pci_driver rivafb_driver = {
2186 .name = "rivafb",
2187 .id_table = rivafb_pci_tbl,
2188 .probe = rivafb_probe,
2189 .remove = __devexit_p(rivafb_remove),
2190 };
2191
2192
2193
2194 /* ------------------------------------------------------------------------- *
2195 *
2196 * modularization
2197 *
2198 * ------------------------------------------------------------------------- */
2199
2200 static int __devinit rivafb_init(void)
2201 {
2202 #ifndef MODULE
2203 char *option = NULL;
2204
2205 if (fb_get_options("rivafb", &option))
2206 return -ENODEV;
2207 rivafb_setup(option);
2208 #endif
2209 return pci_register_driver(&rivafb_driver);
2210 }
2211
2212
2213 module_init(rivafb_init);
2214
2215 static void __exit rivafb_exit(void)
2216 {
2217 pci_unregister_driver(&rivafb_driver);
2218 }
2219
2220 module_exit(rivafb_exit);
2221
2222 module_param(noaccel, bool, 0);
2223 MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
2224 module_param(flatpanel, int, 0);
2225 MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)");
2226 module_param(forceCRTC, int, 0);
2227 MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)");
2228 #ifdef CONFIG_MTRR
2229 module_param(nomtrr, bool, 0);
2230 MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)");
2231 #endif
2232 module_param(strictmode, bool, 0);
2233 MODULE_PARM_DESC(strictmode, "Only use video modes from EDID");
2234
2235 MODULE_AUTHOR("Ani Joshi, maintainer");
2236 MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series");
2237 MODULE_LICENSE("GPL");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree