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 96static int rivafb_blank(int blank, struct fb_info *info); 97 98/* ------------------------------------------------------------------------- * 99 * 100 * card identification 101 * 102 * ------------------------------------------------------------------------- */ 103 104static 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}; 192MODULE_DEVICE_TABLE(pci, rivafb_pci_tbl); 193 194/* ------------------------------------------------------------------------- * 195 * 196 * global variables 197 * 198 * ------------------------------------------------------------------------- */ 199 200/* command line data, set in rivafb_setup() */ 201static int flatpanel = -1; /* Autodetect later */ 202static int forceCRTC = -1; 203static bool noaccel = 0; 204static bool nomtrr = 0; 205static int backlight = IS_BUILTIN(CONFIG_PMAC_BACKLIGHT); 206 207static char *mode_option = NULL; 208static bool strictmode = 0; 209 210static struct fb_fix_screeninfo rivafb_fix = { 211 .type = FB_TYPE_PACKED_PIXELS, 212 .xpanstep = 1, 213 .ypanstep = 1, 214}; 215 216static 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 */ 240static 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 271static 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 291static 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 316static const struct backlight_ops riva_bl_ops = { 317 .update_status = riva_bl_update_status, 318}; 319 320static 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 362error: 363 return; 364} 365 366static 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 374static inline void riva_bl_init(struct riva_par *par) {} 375static 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 384static 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 391static 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 398static 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 405static 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 412static 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 419static 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 426static 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 433static 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 440static inline void MISCout(struct riva_par *par, unsigned char val) 441{ 442 VGA_WR08(par->riva.PVIO, 0x3c2, val); 443} 444 445static inline unsigned char MISCin(struct riva_par *par) 446{ 447 return (VGA_RD08(par->riva.PVIO, 0x3cc)); 448} 449 450static 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 */ 483static 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 */ 537static 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 */ 561static 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 */ 584static 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 */ 623static 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 */ 668static 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 815out: 816 rivafb_blank(FB_BLANK_UNBLANK, info); 817 NVTRACE_LEAVE(); 818 819 return rc; 820} 821 822static 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 */ 860static 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 946static void 947riva_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 */ 957static 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 */ 965static void 966riva_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 974static 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 */ 1000static 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 1027static 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 1054static 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 1079static 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 if (!var->pixclock) 1088 return -EINVAL; 1089 1090 switch (var->bits_per_pixel) { 1091 case 1 ... 8: 1092 var->red.offset = var->green.offset = var->blue.offset = 0; 1093 var->red.length = var->green.length = var->blue.length = 8; 1094 var->bits_per_pixel = 8; 1095 nom = den = 1; 1096 break; 1097 case 9 ... 15: 1098 var->green.length = 5; 1099 fallthrough; 1100 case 16: 1101 var->bits_per_pixel = 16; 1102 /* The Riva128 supports RGB555 only */ 1103 if (par->riva.Architecture == NV_ARCH_03) 1104 var->green.length = 5; 1105 if (var->green.length == 5) { 1106 /* 0rrrrrgg gggbbbbb */ 1107 var->red.offset = 10; 1108 var->green.offset = 5; 1109 var->blue.offset = 0; 1110 var->red.length = 5; 1111 var->green.length = 5; 1112 var->blue.length = 5; 1113 } else { 1114 /* rrrrrggg gggbbbbb */ 1115 var->red.offset = 11; 1116 var->green.offset = 5; 1117 var->blue.offset = 0; 1118 var->red.length = 5; 1119 var->green.length = 6; 1120 var->blue.length = 5; 1121 } 1122 nom = 2; 1123 den = 1; 1124 break; 1125 case 17 ... 32: 1126 var->red.length = var->green.length = var->blue.length = 8; 1127 var->bits_per_pixel = 32; 1128 var->red.offset = 16; 1129 var->green.offset = 8; 1130 var->blue.offset = 0; 1131 nom = 4; 1132 den = 1; 1133 break; 1134 default: 1135 printk(KERN_ERR PFX 1136 "mode %dx%dx%d rejected...color depth not supported.\n", 1137 var->xres, var->yres, var->bits_per_pixel); 1138 NVTRACE("EXIT, returning -EINVAL\n"); 1139 return -EINVAL; 1140 } 1141 1142 if (!strictmode) { 1143 if (!info->monspecs.vfmax || !info->monspecs.hfmax || 1144 !info->monspecs.dclkmax || !fb_validate_mode(var, info)) 1145 mode_valid = 1; 1146 } 1147 1148 /* calculate modeline if supported by monitor */ 1149 if (!mode_valid && info->monspecs.gtf) { 1150 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info)) 1151 mode_valid = 1; 1152 } 1153 1154 if (!mode_valid) { 1155 mode = fb_find_best_mode(var, &info->modelist); 1156 if (mode) { 1157 riva_update_var(var, mode); 1158 mode_valid = 1; 1159 } 1160 } 1161 1162 if (!mode_valid && info->monspecs.modedb_len) 1163 return -EINVAL; 1164 1165 if (var->xres_virtual < var->xres) 1166 var->xres_virtual = var->xres; 1167 if (var->yres_virtual <= var->yres) 1168 var->yres_virtual = -1; 1169 if (rivafb_do_maximize(info, var, nom, den) < 0) 1170 return -EINVAL; 1171 1172 /* truncate xoffset and yoffset to maximum if too high */ 1173 if (var->xoffset > var->xres_virtual - var->xres) 1174 var->xoffset = var->xres_virtual - var->xres - 1; 1175 1176 if (var->yoffset > var->yres_virtual - var->yres) 1177 var->yoffset = var->yres_virtual - var->yres - 1; 1178 1179 var->red.msb_right = 1180 var->green.msb_right = 1181 var->blue.msb_right = 1182 var->transp.offset = var->transp.length = var->transp.msb_right = 0; 1183 NVTRACE_LEAVE(); 1184 return 0; 1185} 1186 1187static int rivafb_set_par(struct fb_info *info) 1188{ 1189 struct riva_par *par = info->par; 1190 int rc = 0; 1191 1192 NVTRACE_ENTER(); 1193 /* vgaHWunlock() + riva unlock (0x7F) */ 1194 CRTCout(par, 0x11, 0xFF); 1195 par->riva.LockUnlock(&par->riva, 0); 1196 rc = riva_load_video_mode(info); 1197 if (rc) 1198 goto out; 1199 if(!(info->flags & FBINFO_HWACCEL_DISABLED)) 1200 riva_setup_accel(info); 1201 1202 par->cursor_reset = 1; 1203 info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3)); 1204 info->fix.visual = (info->var.bits_per_pixel == 8) ? 1205 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; 1206 1207 if (info->flags & FBINFO_HWACCEL_DISABLED) 1208 info->pixmap.scan_align = 1; 1209 else 1210 info->pixmap.scan_align = 4; 1211 1212out: 1213 NVTRACE_LEAVE(); 1214 return rc; 1215} 1216 1217/** 1218 * rivafb_pan_display 1219 * @var: standard kernel fb changeable data 1220 * @con: TODO 1221 * @info: pointer to fb_info object containing info for current riva board 1222 * 1223 * DESCRIPTION: 1224 * Pan (or wrap, depending on the `vmode' field) the display using the 1225 * `xoffset' and `yoffset' fields of the `var' structure. 1226 * If the values don't fit, return -EINVAL. 1227 * 1228 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag 1229 */ 1230static int rivafb_pan_display(struct fb_var_screeninfo *var, 1231 struct fb_info *info) 1232{ 1233 struct riva_par *par = info->par; 1234 unsigned int base; 1235 1236 NVTRACE_ENTER(); 1237 base = var->yoffset * info->fix.line_length + var->xoffset; 1238 par->riva.SetStartAddress(&par->riva, base); 1239 NVTRACE_LEAVE(); 1240 return 0; 1241} 1242 1243static int rivafb_blank(int blank, struct fb_info *info) 1244{ 1245 struct riva_par *par= info->par; 1246 unsigned char tmp, vesa; 1247 1248 tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */ 1249 vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */ 1250 1251 NVTRACE_ENTER(); 1252 1253 if (blank) 1254 tmp |= 0x20; 1255 1256 switch (blank) { 1257 case FB_BLANK_UNBLANK: 1258 case FB_BLANK_NORMAL: 1259 break; 1260 case FB_BLANK_VSYNC_SUSPEND: 1261 vesa |= 0x80; 1262 break; 1263 case FB_BLANK_HSYNC_SUSPEND: 1264 vesa |= 0x40; 1265 break; 1266 case FB_BLANK_POWERDOWN: 1267 vesa |= 0xc0; 1268 break; 1269 } 1270 1271 SEQout(par, 0x01, tmp); 1272 CRTCout(par, 0x1a, vesa); 1273 1274 NVTRACE_LEAVE(); 1275 1276 return 0; 1277} 1278 1279/** 1280 * rivafb_setcolreg 1281 * @regno: register index 1282 * @red: red component 1283 * @green: green component 1284 * @blue: blue component 1285 * @transp: transparency 1286 * @info: pointer to fb_info object containing info for current riva board 1287 * 1288 * DESCRIPTION: 1289 * Set a single color register. The values supplied have a 16 bit 1290 * magnitude. 1291 * 1292 * RETURNS: 1293 * Return != 0 for invalid regno. 1294 * 1295 * CALLED FROM: 1296 * fbcmap.c:fb_set_cmap() 1297 */ 1298static int rivafb_setcolreg(unsigned regno, unsigned red, unsigned green, 1299 unsigned blue, unsigned transp, 1300 struct fb_info *info) 1301{ 1302 struct riva_par *par = info->par; 1303 RIVA_HW_INST *chip = &par->riva; 1304 int i; 1305 1306 if (regno >= riva_get_cmap_len(&info->var)) 1307 return -EINVAL; 1308 1309 if (info->var.grayscale) { 1310 /* gray = 0.30*R + 0.59*G + 0.11*B */ 1311 red = green = blue = 1312 (red * 77 + green * 151 + blue * 28) >> 8; 1313 } 1314 1315 if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) { 1316 ((u32 *) info->pseudo_palette)[regno] = 1317 (regno << info->var.red.offset) | 1318 (regno << info->var.green.offset) | 1319 (regno << info->var.blue.offset); 1320 /* 1321 * The Riva128 2D engine requires color information in 1322 * TrueColor format even if framebuffer is in DirectColor 1323 */ 1324 if (par->riva.Architecture == NV_ARCH_03) { 1325 switch (info->var.bits_per_pixel) { 1326 case 16: 1327 par->palette[regno] = ((red & 0xf800) >> 1) | 1328 ((green & 0xf800) >> 6) | 1329 ((blue & 0xf800) >> 11); 1330 break; 1331 case 32: 1332 par->palette[regno] = ((red & 0xff00) << 8) | 1333 ((green & 0xff00)) | 1334 ((blue & 0xff00) >> 8); 1335 break; 1336 } 1337 } 1338 } 1339 1340 switch (info->var.bits_per_pixel) { 1341 case 8: 1342 /* "transparent" stuff is completely ignored. */ 1343 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8); 1344 break; 1345 case 16: 1346 if (info->var.green.length == 5) { 1347 for (i = 0; i < 8; i++) { 1348 riva_wclut(chip, regno*8+i, red >> 8, 1349 green >> 8, blue >> 8); 1350 } 1351 } else { 1352 u8 r, g, b; 1353 1354 if (regno < 32) { 1355 for (i = 0; i < 8; i++) { 1356 riva_wclut(chip, regno*8+i, 1357 red >> 8, green >> 8, 1358 blue >> 8); 1359 } 1360 } 1361 riva_rclut(chip, regno*4, &r, &g, &b); 1362 for (i = 0; i < 4; i++) 1363 riva_wclut(chip, regno*4+i, r, 1364 green >> 8, b); 1365 } 1366 break; 1367 case 32: 1368 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8); 1369 break; 1370 default: 1371 /* do nothing */ 1372 break; 1373 } 1374 return 0; 1375} 1376 1377/** 1378 * rivafb_fillrect - hardware accelerated color fill function 1379 * @info: pointer to fb_info structure 1380 * @rect: pointer to fb_fillrect structure 1381 * 1382 * DESCRIPTION: 1383 * This function fills up a region of framebuffer memory with a solid 1384 * color with a choice of two different ROP's, copy or invert. 1385 * 1386 * CALLED FROM: 1387 * framebuffer hook 1388 */ 1389static void rivafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) 1390{ 1391 struct riva_par *par = info->par; 1392 u_int color, rop = 0; 1393 1394 if ((info->flags & FBINFO_HWACCEL_DISABLED)) { 1395 cfb_fillrect(info, rect); 1396 return; 1397 } 1398 1399 if (info->var.bits_per_pixel == 8) 1400 color = rect->color; 1401 else { 1402 if (par->riva.Architecture != NV_ARCH_03) 1403 color = ((u32 *)info->pseudo_palette)[rect->color]; 1404 else 1405 color = par->palette[rect->color]; 1406 } 1407 1408 switch (rect->rop) { 1409 case ROP_XOR: 1410 rop = 0x66; 1411 break; 1412 case ROP_COPY: 1413 default: 1414 rop = 0xCC; 1415 break; 1416 } 1417 1418 riva_set_rop_solid(par, rop); 1419 1420 RIVA_FIFO_FREE(par->riva, Bitmap, 1); 1421 NV_WR32(&par->riva.Bitmap->Color1A, 0, color); 1422 1423 RIVA_FIFO_FREE(par->riva, Bitmap, 2); 1424 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].TopLeft, 0, 1425 (rect->dx << 16) | rect->dy); 1426 mb(); 1427 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].WidthHeight, 0, 1428 (rect->width << 16) | rect->height); 1429 mb(); 1430 riva_set_rop_solid(par, 0xcc); 1431 1432} 1433 1434/** 1435 * rivafb_copyarea - hardware accelerated blit function 1436 * @info: pointer to fb_info structure 1437 * @region: pointer to fb_copyarea structure 1438 * 1439 * DESCRIPTION: 1440 * This copies an area of pixels from one location to another 1441 * 1442 * CALLED FROM: 1443 * framebuffer hook 1444 */ 1445static void rivafb_copyarea(struct fb_info *info, const struct fb_copyarea *region) 1446{ 1447 struct riva_par *par = info->par; 1448 1449 if ((info->flags & FBINFO_HWACCEL_DISABLED)) { 1450 cfb_copyarea(info, region); 1451 return; 1452 } 1453 1454 RIVA_FIFO_FREE(par->riva, Blt, 3); 1455 NV_WR32(&par->riva.Blt->TopLeftSrc, 0, 1456 (region->sy << 16) | region->sx); 1457 NV_WR32(&par->riva.Blt->TopLeftDst, 0, 1458 (region->dy << 16) | region->dx); 1459 mb(); 1460 NV_WR32(&par->riva.Blt->WidthHeight, 0, 1461 (region->height << 16) | region->width); 1462 mb(); 1463} 1464 1465static inline void convert_bgcolor_16(u32 *col) 1466{ 1467 *col = ((*col & 0x0000F800) << 8) 1468 | ((*col & 0x00007E0) << 5) 1469 | ((*col & 0x0000001F) << 3) 1470 | 0xFF000000; 1471 mb(); 1472} 1473 1474/** 1475 * rivafb_imageblit: hardware accelerated color expand function 1476 * @info: pointer to fb_info structure 1477 * @image: pointer to fb_image structure 1478 * 1479 * DESCRIPTION: 1480 * If the source is a monochrome bitmap, the function fills up a a region 1481 * of framebuffer memory with pixels whose color is determined by the bit 1482 * setting of the bitmap, 1 - foreground, 0 - background. 1483 * 1484 * If the source is not a monochrome bitmap, color expansion is not done. 1485 * In this case, it is channeled to a software function. 1486 * 1487 * CALLED FROM: 1488 * framebuffer hook 1489 */ 1490static void rivafb_imageblit(struct fb_info *info, 1491 const struct fb_image *image) 1492{ 1493 struct riva_par *par = info->par; 1494 u32 fgx = 0, bgx = 0, width, tmp; 1495 u8 *cdat = (u8 *) image->data; 1496 volatile u32 __iomem *d; 1497 int i, size; 1498 1499 if ((info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1) { 1500 cfb_imageblit(info, image); 1501 return; 1502 } 1503 1504 switch (info->var.bits_per_pixel) { 1505 case 8: 1506 fgx = image->fg_color; 1507 bgx = image->bg_color; 1508 break; 1509 case 16: 1510 case 32: 1511 if (par->riva.Architecture != NV_ARCH_03) { 1512 fgx = ((u32 *)info->pseudo_palette)[image->fg_color]; 1513 bgx = ((u32 *)info->pseudo_palette)[image->bg_color]; 1514 } else { 1515 fgx = par->palette[image->fg_color]; 1516 bgx = par->palette[image->bg_color]; 1517 } 1518 if (info->var.green.length == 6) 1519 convert_bgcolor_16(&bgx); 1520 break; 1521 } 1522 1523 RIVA_FIFO_FREE(par->riva, Bitmap, 7); 1524 NV_WR32(&par->riva.Bitmap->ClipE.TopLeft, 0, 1525 (image->dy << 16) | (image->dx & 0xFFFF)); 1526 NV_WR32(&par->riva.Bitmap->ClipE.BottomRight, 0, 1527 (((image->dy + image->height) << 16) | 1528 ((image->dx + image->width) & 0xffff))); 1529 NV_WR32(&par->riva.Bitmap->Color0E, 0, bgx); 1530 NV_WR32(&par->riva.Bitmap->Color1E, 0, fgx); 1531 NV_WR32(&par->riva.Bitmap->WidthHeightInE, 0, 1532 (image->height << 16) | ((image->width + 31) & ~31)); 1533 NV_WR32(&par->riva.Bitmap->WidthHeightOutE, 0, 1534 (image->height << 16) | ((image->width + 31) & ~31)); 1535 NV_WR32(&par->riva.Bitmap->PointE, 0, 1536 (image->dy << 16) | (image->dx & 0xFFFF)); 1537 1538 d = &par->riva.Bitmap->MonochromeData01E; 1539 1540 width = (image->width + 31)/32; 1541 size = width * image->height; 1542 while (size >= 16) { 1543 RIVA_FIFO_FREE(par->riva, Bitmap, 16); 1544 for (i = 0; i < 16; i++) { 1545 tmp = *((u32 *)cdat); 1546 cdat = (u8 *)((u32 *)cdat + 1); 1547 reverse_order(&tmp); 1548 NV_WR32(d, i*4, tmp); 1549 } 1550 size -= 16; 1551 } 1552 if (size) { 1553 RIVA_FIFO_FREE(par->riva, Bitmap, size); 1554 for (i = 0; i < size; i++) { 1555 tmp = *((u32 *) cdat); 1556 cdat = (u8 *)((u32 *)cdat + 1); 1557 reverse_order(&tmp); 1558 NV_WR32(d, i*4, tmp); 1559 } 1560 } 1561} 1562 1563/** 1564 * rivafb_cursor - hardware cursor function 1565 * @info: pointer to info structure 1566 * @cursor: pointer to fbcursor structure 1567 * 1568 * DESCRIPTION: 1569 * A cursor function that supports displaying a cursor image via hardware. 1570 * Within the kernel, copy and invert rops are supported. If exported 1571 * to user space, only the copy rop will be supported. 1572 * 1573 * CALLED FROM 1574 * framebuffer hook 1575 */ 1576static int rivafb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1577{ 1578 struct riva_par *par = info->par; 1579 u8 data[MAX_CURS * MAX_CURS/8]; 1580 int i, set = cursor->set; 1581 u16 fg, bg; 1582 1583 if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS) 1584 return -ENXIO; 1585 1586 par->riva.ShowHideCursor(&par->riva, 0); 1587 1588 if (par->cursor_reset) { 1589 set = FB_CUR_SETALL; 1590 par->cursor_reset = 0; 1591 } 1592 1593 if (set & FB_CUR_SETSIZE) 1594 memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2); 1595 1596 if (set & FB_CUR_SETPOS) { 1597 u32 xx, yy, temp; 1598 1599 yy = cursor->image.dy - info->var.yoffset; 1600 xx = cursor->image.dx - info->var.xoffset; 1601 temp = xx & 0xFFFF; 1602 temp |= yy << 16; 1603 1604 NV_WR32(par->riva.PRAMDAC, 0x0000300, temp); 1605 } 1606 1607 1608 if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) { 1609 u32 bg_idx = cursor->image.bg_color; 1610 u32 fg_idx = cursor->image.fg_color; 1611 u32 s_pitch = (cursor->image.width+7) >> 3; 1612 u32 d_pitch = MAX_CURS/8; 1613 u8 *dat = (u8 *) cursor->image.data; 1614 u8 *msk = (u8 *) cursor->mask; 1615 u8 *src; 1616 1617 src = kmalloc_array(s_pitch, cursor->image.height, GFP_ATOMIC); 1618 1619 if (src) { 1620 switch (cursor->rop) { 1621 case ROP_XOR: 1622 for (i = 0; i < s_pitch * cursor->image.height; i++) 1623 src[i] = dat[i] ^ msk[i]; 1624 break; 1625 case ROP_COPY: 1626 default: 1627 for (i = 0; i < s_pitch * cursor->image.height; i++) 1628 src[i] = dat[i] & msk[i]; 1629 break; 1630 } 1631 1632 fb_pad_aligned_buffer(data, d_pitch, src, s_pitch, 1633 cursor->image.height); 1634 1635 bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) | 1636 ((info->cmap.green[bg_idx] & 0xf8) << 2) | 1637 ((info->cmap.blue[bg_idx] & 0xf8) >> 3) | 1638 1 << 15; 1639 1640 fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) | 1641 ((info->cmap.green[fg_idx] & 0xf8) << 2) | 1642 ((info->cmap.blue[fg_idx] & 0xf8) >> 3) | 1643 1 << 15; 1644 1645 par->riva.LockUnlock(&par->riva, 0); 1646 1647 rivafb_load_cursor_image(par, data, bg, fg, 1648 cursor->image.width, 1649 cursor->image.height); 1650 kfree(src); 1651 } 1652 } 1653 1654 if (cursor->enable) 1655 par->riva.ShowHideCursor(&par->riva, 1); 1656 1657 return 0; 1658} 1659 1660static int rivafb_sync(struct fb_info *info) 1661{ 1662 struct riva_par *par = info->par; 1663 1664 wait_for_idle(par); 1665 return 0; 1666} 1667 1668/* ------------------------------------------------------------------------- * 1669 * 1670 * initialization helper functions 1671 * 1672 * ------------------------------------------------------------------------- */ 1673 1674/* kernel interface */ 1675static const struct fb_ops riva_fb_ops = { 1676 .owner = THIS_MODULE, 1677 .fb_open = rivafb_open, 1678 .fb_release = rivafb_release, 1679 .fb_check_var = rivafb_check_var, 1680 .fb_set_par = rivafb_set_par, 1681 .fb_setcolreg = rivafb_setcolreg, 1682 .fb_pan_display = rivafb_pan_display, 1683 .fb_blank = rivafb_blank, 1684 .fb_fillrect = rivafb_fillrect, 1685 .fb_copyarea = rivafb_copyarea, 1686 .fb_imageblit = rivafb_imageblit, 1687 .fb_cursor = rivafb_cursor, 1688 .fb_sync = rivafb_sync, 1689}; 1690 1691static int riva_set_fbinfo(struct fb_info *info) 1692{ 1693 unsigned int cmap_len; 1694 struct riva_par *par = info->par; 1695 1696 NVTRACE_ENTER(); 1697 info->flags = FBINFO_DEFAULT 1698 | FBINFO_HWACCEL_XPAN 1699 | FBINFO_HWACCEL_YPAN 1700 | FBINFO_HWACCEL_COPYAREA 1701 | FBINFO_HWACCEL_FILLRECT 1702 | FBINFO_HWACCEL_IMAGEBLIT; 1703 1704 /* Accel seems to not work properly on NV30 yet...*/ 1705 if ((par->riva.Architecture == NV_ARCH_30) || noaccel) { 1706 printk(KERN_DEBUG PFX "disabling acceleration\n"); 1707 info->flags |= FBINFO_HWACCEL_DISABLED; 1708 } 1709 1710 info->var = rivafb_default_var; 1711 info->fix.visual = (info->var.bits_per_pixel == 8) ? 1712 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; 1713 1714 info->pseudo_palette = par->pseudo_palette; 1715 1716 cmap_len = riva_get_cmap_len(&info->var); 1717 fb_alloc_cmap(&info->cmap, cmap_len, 0); 1718 1719 info->pixmap.size = 8 * 1024; 1720 info->pixmap.buf_align = 4; 1721 info->pixmap.access_align = 32; 1722 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1723 info->var.yres_virtual = -1; 1724 NVTRACE_LEAVE(); 1725 return (rivafb_check_var(&info->var, info)); 1726} 1727 1728static int riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd) 1729{ 1730 struct riva_par *par = info->par; 1731 struct device_node *dp; 1732 const unsigned char *pedid = NULL; 1733 const unsigned char *disptype = NULL; 1734 static char *propnames[] = { 1735 "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL }; 1736 int i; 1737 1738 NVTRACE_ENTER(); 1739 dp = pci_device_to_OF_node(pd); 1740 for (; dp != NULL; dp = dp->child) { 1741 disptype = of_get_property(dp, "display-type", NULL); 1742 if (disptype == NULL) 1743 continue; 1744 if (strncmp(disptype, "LCD", 3) != 0) 1745 continue; 1746 for (i = 0; propnames[i] != NULL; ++i) { 1747 pedid = of_get_property(dp, propnames[i], NULL); 1748 if (pedid != NULL) { 1749 par->EDID = (unsigned char *)pedid; 1750 NVTRACE("LCD found.\n"); 1751 return 1; 1752 } 1753 } 1754 } 1755 NVTRACE_LEAVE(); 1756 return 0; 1757} 1758 1759#if defined(CONFIG_FB_RIVA_I2C) 1760static int riva_get_EDID_i2c(struct fb_info *info) 1761{ 1762 struct riva_par *par = info->par; 1763 struct fb_var_screeninfo var; 1764 int i; 1765 1766 NVTRACE_ENTER(); 1767 par->riva.LockUnlock(&par->riva, 0); 1768 riva_create_i2c_busses(par); 1769 for (i = 0; i < 3; i++) { 1770 if (!par->chan[i].par) 1771 continue; 1772 riva_probe_i2c_connector(par, i, &par->EDID); 1773 if (par->EDID && !fb_parse_edid(par->EDID, &var)) { 1774 printk(PFX "Found EDID Block from BUS %i\n", i); 1775 break; 1776 } 1777 } 1778 1779 NVTRACE_LEAVE(); 1780 return (par->EDID) ? 1 : 0; 1781} 1782#endif /* CONFIG_FB_RIVA_I2C */ 1783 1784static void riva_update_default_var(struct fb_var_screeninfo *var, 1785 struct fb_info *info) 1786{ 1787 struct fb_monspecs *specs = &info->monspecs; 1788 struct fb_videomode modedb; 1789 1790 NVTRACE_ENTER(); 1791 /* respect mode options */ 1792 if (mode_option) { 1793 fb_find_mode(var, info, mode_option, 1794 specs->modedb, specs->modedb_len, 1795 NULL, 8); 1796 } else if (specs->modedb != NULL) { 1797 /* get first mode in database as fallback */ 1798 modedb = specs->modedb[0]; 1799 /* get preferred timing */ 1800 if (info->monspecs.misc & FB_MISC_1ST_DETAIL) { 1801 int i; 1802 1803 for (i = 0; i < specs->modedb_len; i++) { 1804 if (specs->modedb[i].flag & FB_MODE_IS_FIRST) { 1805 modedb = specs->modedb[i]; 1806 break; 1807 } 1808 } 1809 } 1810 var->bits_per_pixel = 8; 1811 riva_update_var(var, &modedb); 1812 } 1813 NVTRACE_LEAVE(); 1814} 1815 1816 1817static void riva_get_EDID(struct fb_info *info, struct pci_dev *pdev) 1818{ 1819 NVTRACE_ENTER(); 1820 if (riva_get_EDID_OF(info, pdev)) { 1821 NVTRACE_LEAVE(); 1822 return; 1823 } 1824 if (IS_ENABLED(CONFIG_OF)) 1825 printk(PFX "could not retrieve EDID from OF\n"); 1826#if defined(CONFIG_FB_RIVA_I2C) 1827 if (!riva_get_EDID_i2c(info)) 1828 printk(PFX "could not retrieve EDID from DDC/I2C\n"); 1829#endif 1830 NVTRACE_LEAVE(); 1831} 1832 1833 1834static void riva_get_edidinfo(struct fb_info *info) 1835{ 1836 struct fb_var_screeninfo *var = &rivafb_default_var; 1837 struct riva_par *par = info->par; 1838 1839 fb_edid_to_monspecs(par->EDID, &info->monspecs); 1840 fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len, 1841 &info->modelist); 1842 riva_update_default_var(var, info); 1843 1844 /* if user specified flatpanel, we respect that */ 1845 if (info->monspecs.input & FB_DISP_DDI) 1846 par->FlatPanel = 1; 1847} 1848 1849/* ------------------------------------------------------------------------- * 1850 * 1851 * PCI bus 1852 * 1853 * ------------------------------------------------------------------------- */ 1854 1855static u32 riva_get_arch(struct pci_dev *pd) 1856{ 1857 u32 arch = 0; 1858 1859 switch (pd->device & 0x0ff0) { 1860 case 0x0100: /* GeForce 256 */ 1861 case 0x0110: /* GeForce2 MX */ 1862 case 0x0150: /* GeForce2 */ 1863 case 0x0170: /* GeForce4 MX */ 1864 case 0x0180: /* GeForce4 MX (8x AGP) */ 1865 case 0x01A0: /* nForce */ 1866 case 0x01F0: /* nForce2 */ 1867 arch = NV_ARCH_10; 1868 break; 1869 case 0x0200: /* GeForce3 */ 1870 case 0x0250: /* GeForce4 Ti */ 1871 case 0x0280: /* GeForce4 Ti (8x AGP) */ 1872 arch = NV_ARCH_20; 1873 break; 1874 case 0x0300: /* GeForceFX 5800 */ 1875 case 0x0310: /* GeForceFX 5600 */ 1876 case 0x0320: /* GeForceFX 5200 */ 1877 case 0x0330: /* GeForceFX 5900 */ 1878 case 0x0340: /* GeForceFX 5700 */ 1879 arch = NV_ARCH_30; 1880 break; 1881 case 0x0020: /* TNT, TNT2 */ 1882 arch = NV_ARCH_04; 1883 break; 1884 case 0x0010: /* Riva128 */ 1885 arch = NV_ARCH_03; 1886 break; 1887 default: /* unknown architecture */ 1888 break; 1889 } 1890 return arch; 1891} 1892 1893static int rivafb_probe(struct pci_dev *pd, const struct pci_device_id *ent) 1894{ 1895 struct riva_par *default_par; 1896 struct fb_info *info; 1897 int ret; 1898 1899 NVTRACE_ENTER(); 1900 assert(pd != NULL); 1901 1902 info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev); 1903 if (!info) { 1904 ret = -ENOMEM; 1905 goto err_ret; 1906 } 1907 default_par = info->par; 1908 default_par->pdev = pd; 1909 1910 info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL); 1911 if (info->pixmap.addr == NULL) { 1912 ret = -ENOMEM; 1913 goto err_framebuffer_release; 1914 } 1915 1916 ret = pci_enable_device(pd); 1917 if (ret < 0) { 1918 printk(KERN_ERR PFX "cannot enable PCI device\n"); 1919 goto err_free_pixmap; 1920 } 1921 1922 ret = pci_request_regions(pd, "rivafb"); 1923 if (ret < 0) { 1924 printk(KERN_ERR PFX "cannot request PCI regions\n"); 1925 goto err_disable_device; 1926 } 1927 1928 mutex_init(&default_par->open_lock); 1929 default_par->riva.Architecture = riva_get_arch(pd); 1930 1931 default_par->Chipset = (pd->vendor << 16) | pd->device; 1932 printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset); 1933 1934 if(default_par->riva.Architecture == 0) { 1935 printk(KERN_ERR PFX "unknown NV_ARCH\n"); 1936 ret=-ENODEV; 1937 goto err_release_region; 1938 } 1939 if(default_par->riva.Architecture == NV_ARCH_10 || 1940 default_par->riva.Architecture == NV_ARCH_20 || 1941 default_par->riva.Architecture == NV_ARCH_30) { 1942 sprintf(rivafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4); 1943 } else { 1944 sprintf(rivafb_fix.id, "NV%x", default_par->riva.Architecture); 1945 } 1946 1947 default_par->FlatPanel = flatpanel; 1948 if (flatpanel == 1) 1949 printk(KERN_INFO PFX "flatpanel support enabled\n"); 1950 default_par->forceCRTC = forceCRTC; 1951 1952 rivafb_fix.mmio_len = pci_resource_len(pd, 0); 1953 rivafb_fix.smem_len = pci_resource_len(pd, 1); 1954 1955 { 1956 /* enable IO and mem if not already done */ 1957 unsigned short cmd; 1958 1959 pci_read_config_word(pd, PCI_COMMAND, &cmd); 1960 cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY); 1961 pci_write_config_word(pd, PCI_COMMAND, cmd); 1962 } 1963 1964 rivafb_fix.mmio_start = pci_resource_start(pd, 0); 1965 rivafb_fix.smem_start = pci_resource_start(pd, 1); 1966 1967 default_par->ctrl_base = ioremap(rivafb_fix.mmio_start, 1968 rivafb_fix.mmio_len); 1969 if (!default_par->ctrl_base) { 1970 printk(KERN_ERR PFX "cannot ioremap MMIO base\n"); 1971 ret = -EIO; 1972 goto err_release_region; 1973 } 1974 1975 switch (default_par->riva.Architecture) { 1976 case NV_ARCH_03: 1977 /* Riva128's PRAMIN is in the "framebuffer" space 1978 * Since these cards were never made with more than 8 megabytes 1979 * we can safely allocate this separately. 1980 */ 1981 default_par->riva.PRAMIN = ioremap(rivafb_fix.smem_start + 0x00C00000, 0x00008000); 1982 if (!default_par->riva.PRAMIN) { 1983 printk(KERN_ERR PFX "cannot ioremap PRAMIN region\n"); 1984 ret = -EIO; 1985 goto err_iounmap_ctrl_base; 1986 } 1987 break; 1988 case NV_ARCH_04: 1989 case NV_ARCH_10: 1990 case NV_ARCH_20: 1991 case NV_ARCH_30: 1992 default_par->riva.PCRTC0 = 1993 (u32 __iomem *)(default_par->ctrl_base + 0x00600000); 1994 default_par->riva.PRAMIN = 1995 (u32 __iomem *)(default_par->ctrl_base + 0x00710000); 1996 break; 1997 } 1998 riva_common_setup(default_par); 1999 2000 if (default_par->riva.Architecture == NV_ARCH_03) { 2001 default_par->riva.PCRTC = default_par->riva.PCRTC0 2002 = default_par->riva.PGRAPH; 2003 } 2004 2005 rivafb_fix.smem_len = riva_get_memlen(default_par) * 1024; 2006 default_par->dclk_max = riva_get_maxdclk(default_par) * 1000; 2007 info->screen_base = ioremap_wc(rivafb_fix.smem_start, 2008 rivafb_fix.smem_len); 2009 if (!info->screen_base) { 2010 printk(KERN_ERR PFX "cannot ioremap FB base\n"); 2011 ret = -EIO; 2012 goto err_iounmap_pramin; 2013 } 2014 2015 if (!nomtrr) 2016 default_par->wc_cookie = 2017 arch_phys_wc_add(rivafb_fix.smem_start, 2018 rivafb_fix.smem_len); 2019 2020 info->fbops = &riva_fb_ops; 2021 info->fix = rivafb_fix; 2022 riva_get_EDID(info, pd); 2023 riva_get_edidinfo(info); 2024 2025 ret=riva_set_fbinfo(info); 2026 if (ret < 0) { 2027 printk(KERN_ERR PFX "error setting initial video mode\n"); 2028 goto err_iounmap_screen_base; 2029 } 2030 2031 fb_destroy_modedb(info->monspecs.modedb); 2032 info->monspecs.modedb = NULL; 2033 2034 pci_set_drvdata(pd, info); 2035 2036 if (backlight) 2037 riva_bl_init(info->par); 2038 2039 ret = register_framebuffer(info); 2040 if (ret < 0) { 2041 printk(KERN_ERR PFX 2042 "error registering riva framebuffer\n"); 2043 goto err_iounmap_screen_base; 2044 } 2045 2046 printk(KERN_INFO PFX 2047 "PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n", 2048 info->fix.id, 2049 RIVAFB_VERSION, 2050 info->fix.smem_len / (1024 * 1024), 2051 info->fix.smem_start); 2052 2053 NVTRACE_LEAVE(); 2054 return 0; 2055 2056err_iounmap_screen_base: 2057#ifdef CONFIG_FB_RIVA_I2C 2058 riva_delete_i2c_busses(info->par); 2059#endif 2060 iounmap(info->screen_base); 2061err_iounmap_pramin: 2062 if (default_par->riva.Architecture == NV_ARCH_03) 2063 iounmap(default_par->riva.PRAMIN); 2064err_iounmap_ctrl_base: 2065 iounmap(default_par->ctrl_base); 2066err_release_region: 2067 pci_release_regions(pd); 2068err_disable_device: 2069err_free_pixmap: 2070 kfree(info->pixmap.addr); 2071err_framebuffer_release: 2072 framebuffer_release(info); 2073err_ret: 2074 return ret; 2075} 2076 2077static void rivafb_remove(struct pci_dev *pd) 2078{ 2079 struct fb_info *info = pci_get_drvdata(pd); 2080 struct riva_par *par = info->par; 2081 2082 NVTRACE_ENTER(); 2083 2084#ifdef CONFIG_FB_RIVA_I2C 2085 riva_delete_i2c_busses(par); 2086 kfree(par->EDID); 2087#endif 2088 2089 unregister_framebuffer(info); 2090 2091 riva_bl_exit(info); 2092 arch_phys_wc_del(par->wc_cookie); 2093 iounmap(par->ctrl_base); 2094 iounmap(info->screen_base); 2095 if (par->riva.Architecture == NV_ARCH_03) 2096 iounmap(par->riva.PRAMIN); 2097 pci_release_regions(pd); 2098 kfree(info->pixmap.addr); 2099 framebuffer_release(info); 2100 NVTRACE_LEAVE(); 2101} 2102 2103/* ------------------------------------------------------------------------- * 2104 * 2105 * initialization 2106 * 2107 * ------------------------------------------------------------------------- */ 2108 2109#ifndef MODULE 2110static int rivafb_setup(char *options) 2111{ 2112 char *this_opt; 2113 2114 NVTRACE_ENTER(); 2115 if (!options || !*options) 2116 return 0; 2117 2118 while ((this_opt = strsep(&options, ",")) != NULL) { 2119 if (!strncmp(this_opt, "forceCRTC", 9)) { 2120 char *p; 2121 2122 p = this_opt + 9; 2123 if (!*p || !*(++p)) continue; 2124 forceCRTC = *p - '0'; 2125 if (forceCRTC < 0 || forceCRTC > 1) 2126 forceCRTC = -1; 2127 } else if (!strncmp(this_opt, "flatpanel", 9)) { 2128 flatpanel = 1; 2129 } else if (!strncmp(this_opt, "backlight:", 10)) { 2130 backlight = simple_strtoul(this_opt+10, NULL, 0); 2131 } else if (!strncmp(this_opt, "nomtrr", 6)) { 2132 nomtrr = 1; 2133 } else if (!strncmp(this_opt, "strictmode", 10)) { 2134 strictmode = 1; 2135 } else if (!strncmp(this_opt, "noaccel", 7)) { 2136 noaccel = 1; 2137 } else 2138 mode_option = this_opt; 2139 } 2140 NVTRACE_LEAVE(); 2141 return 0; 2142} 2143#endif /* !MODULE */ 2144 2145static struct pci_driver rivafb_driver = { 2146 .name = "rivafb", 2147 .id_table = rivafb_pci_tbl, 2148 .probe = rivafb_probe, 2149 .remove = rivafb_remove, 2150}; 2151 2152 2153 2154/* ------------------------------------------------------------------------- * 2155 * 2156 * modularization 2157 * 2158 * ------------------------------------------------------------------------- */ 2159 2160static int rivafb_init(void) 2161{ 2162#ifndef MODULE 2163 char *option = NULL; 2164 2165 if (fb_get_options("rivafb", &option)) 2166 return -ENODEV; 2167 rivafb_setup(option); 2168#endif 2169 return pci_register_driver(&rivafb_driver); 2170} 2171 2172 2173module_init(rivafb_init); 2174 2175static void __exit rivafb_exit(void) 2176{ 2177 pci_unregister_driver(&rivafb_driver); 2178} 2179 2180module_exit(rivafb_exit); 2181 2182module_param(noaccel, bool, 0); 2183MODULE_PARM_DESC(noaccel, "bool: disable acceleration"); 2184module_param(flatpanel, int, 0); 2185MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)"); 2186module_param(forceCRTC, int, 0); 2187MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)"); 2188module_param(nomtrr, bool, 0); 2189MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)"); 2190module_param(strictmode, bool, 0); 2191MODULE_PARM_DESC(strictmode, "Only use video modes from EDID"); 2192 2193MODULE_AUTHOR("Ani Joshi, maintainer"); 2194MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series"); 2195MODULE_LICENSE("GPL"); 2196