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