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fbdev.c
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linux-6.19.14/drivers/video/fbdev/riva/fbdev.c
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/aperture.h> 33#include <linux/module.h> 34#include <linux/kernel.h> 35#include <linux/errno.h> 36#include <linux/string.h> 37#include <linux/mm.h> 38#include <linux/slab.h> 39#include <linux/delay.h> 40#include <linux/fb.h> 41#include <linux/init.h> 42#include <linux/pci.h> 43#include <linux/backlight.h> 44#include <linux/bitrev.h> 45#ifdef CONFIG_PMAC_BACKLIGHT 46#include <asm/machdep.h> 47#include <asm/backlight.h> 48#endif 49 50#include "rivafb.h" 51#include "nvreg.h" 52 53/* version number of this driver */ 54#define RIVAFB_VERSION "0.9.5b" 55 56/* ------------------------------------------------------------------------- * 57 * 58 * various helpful macros and constants 59 * 60 * ------------------------------------------------------------------------- */ 61#ifdef CONFIG_FB_RIVA_DEBUG 62#define NVTRACE printk 63#else 64#define NVTRACE if(0) printk 65#endif 66 67#define NVTRACE_ENTER(...) NVTRACE("%s START\n", __func__) 68#define NVTRACE_LEAVE(...) NVTRACE("%s END\n", __func__) 69 70#ifdef CONFIG_FB_RIVA_DEBUG 71#define assert(expr) \ 72 if(!(expr)) { \ 73 printk( "Assertion failed! %s,%s,%s,line=%d\n",\ 74 #expr,__FILE__,__func__,__LINE__); \ 75 BUG(); \ 76 } 77#else 78#define assert(expr) 79#endif 80 81#define PFX "rivafb: " 82 83/* macro that allows you to set overflow bits */ 84#define SetBitField(value,from,to) SetBF(to,GetBF(value,from)) 85#define SetBit(n) (1<<(n)) 86#define Set8Bits(value) ((value)&0xff) 87 88/* HW cursor parameters */ 89#define MAX_CURS 32 90 91/* ------------------------------------------------------------------------- * 92 * 93 * prototypes 94 * 95 * ------------------------------------------------------------------------- */ 96 97static int rivafb_blank(int blank, struct fb_info *info); 98 99/* ------------------------------------------------------------------------- * 100 * 101 * card identification 102 * 103 * ------------------------------------------------------------------------- */ 104 105static const struct pci_device_id rivafb_pci_tbl[] = { 106 { PCI_VENDOR_ID_NVIDIA_SGS, PCI_DEVICE_ID_NVIDIA_SGS_RIVA128, 107 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 108 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT, 109 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 110 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT2, 111 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 112 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UTNT2, 113 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 114 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_VTNT2, 115 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 116 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UVTNT2, 117 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 118 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_ITNT2, 119 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 120 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR, 121 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 122 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR, 123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 124 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO, 125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 126 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX, 127 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 128 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2, 129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 130 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO, 131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 132 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR, 133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 134 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS, 135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 136 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2, 137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 138 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA, 139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 140 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO, 141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 142 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460, 143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 144 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440, 145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 146 // NF2/IGP version, GeForce 4 MX, NV18 147 { PCI_VENDOR_ID_NVIDIA, 0x01f0, 148 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 149 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420, 150 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 151 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO, 152 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 153 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO, 154 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 155 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32, 156 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 157 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL, 158 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 159 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64, 160 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 161 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_200, 162 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 163 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL, 164 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 165 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL, 166 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 167 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_IGEFORCE2, 168 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 169 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3, 170 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 171 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_1, 172 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 173 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_2, 174 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 175 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_DDC, 176 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 177 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600, 178 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 179 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400, 180 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 181 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200, 182 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 183 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL, 184 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 185 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL, 186 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 187 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL, 188 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 189 { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO_5200, 190 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, 191 { 0, } /* terminate list */ 192}; 193MODULE_DEVICE_TABLE(pci, rivafb_pci_tbl); 194 195/* ------------------------------------------------------------------------- * 196 * 197 * global variables 198 * 199 * ------------------------------------------------------------------------- */ 200 201/* command line data, set in rivafb_setup() */ 202static int flatpanel = -1; /* Autodetect later */ 203static int forceCRTC = -1; 204static bool noaccel = 0; 205static bool nomtrr = 0; 206static int backlight = IS_BUILTIN(CONFIG_PMAC_BACKLIGHT); 207 208static char *mode_option = NULL; 209static bool strictmode = 0; 210 211static struct fb_fix_screeninfo rivafb_fix = { 212 .type = FB_TYPE_PACKED_PIXELS, 213 .xpanstep = 1, 214 .ypanstep = 1, 215}; 216 217static struct fb_var_screeninfo rivafb_default_var = { 218 .xres = 640, 219 .yres = 480, 220 .xres_virtual = 640, 221 .yres_virtual = 480, 222 .bits_per_pixel = 8, 223 .red = {0, 8, 0}, 224 .green = {0, 8, 0}, 225 .blue = {0, 8, 0}, 226 .transp = {0, 0, 0}, 227 .activate = FB_ACTIVATE_NOW, 228 .height = -1, 229 .width = -1, 230 .pixclock = 39721, 231 .left_margin = 40, 232 .right_margin = 24, 233 .upper_margin = 32, 234 .lower_margin = 11, 235 .hsync_len = 96, 236 .vsync_len = 2, 237 .vmode = FB_VMODE_NONINTERLACED 238}; 239 240/* from GGI */ 241static const struct riva_regs reg_template = { 242 {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* ATTR */ 243 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 244 0x41, 0x01, 0x0F, 0x00, 0x00}, 245 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* CRT */ 246 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 247 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE3, /* 0x10 */ 248 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 249 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20 */ 250 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 251 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x30 */ 252 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 253 0x00, /* 0x40 */ 254 }, 255 {0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, /* GRA */ 256 0xFF}, 257 {0x03, 0x01, 0x0F, 0x00, 0x0E}, /* SEQ */ 258 0xEB /* MISC */ 259}; 260 261/* 262 * Backlight control 263 */ 264#ifdef CONFIG_FB_RIVA_BACKLIGHT 265/* We do not have any information about which values are allowed, thus 266 * we used safe values. 267 */ 268#define MIN_LEVEL 0x158 269#define MAX_LEVEL 0x534 270#define LEVEL_STEP ((MAX_LEVEL - MIN_LEVEL) / FB_BACKLIGHT_MAX) 271 272static int riva_bl_get_level_brightness(struct riva_par *par, 273 int level) 274{ 275 struct fb_info *info = pci_get_drvdata(par->pdev); 276 int nlevel; 277 278 /* Get and convert the value */ 279 /* No locking on bl_curve since accessing a single value */ 280 nlevel = MIN_LEVEL + info->bl_curve[level] * LEVEL_STEP; 281 282 if (nlevel < 0) 283 nlevel = 0; 284 else if (nlevel < MIN_LEVEL) 285 nlevel = MIN_LEVEL; 286 else if (nlevel > MAX_LEVEL) 287 nlevel = MAX_LEVEL; 288 289 return nlevel; 290} 291 292static int riva_bl_update_status(struct backlight_device *bd) 293{ 294 struct riva_par *par = bl_get_data(bd); 295 U032 tmp_pcrt, tmp_pmc; 296 int level = backlight_get_brightness(bd); 297 298 tmp_pmc = NV_RD32(par->riva.PMC, 0x10F0) & 0x0000FFFF; 299 tmp_pcrt = NV_RD32(par->riva.PCRTC0, 0x081C) & 0xFFFFFFFC; 300 if(level > 0) { 301 tmp_pcrt |= 0x1; 302 tmp_pmc |= (1 << 31); /* backlight bit */ 303 tmp_pmc |= riva_bl_get_level_brightness(par, level) << 16; /* level */ 304 } 305 NV_WR32(par->riva.PCRTC0, 0x081C, tmp_pcrt); 306 NV_WR32(par->riva.PMC, 0x10F0, tmp_pmc); 307 308 return 0; 309} 310 311static const struct backlight_ops riva_bl_ops = { 312 .update_status = riva_bl_update_status, 313}; 314 315static void riva_bl_init(struct riva_par *par) 316{ 317 struct backlight_properties props; 318 struct fb_info *info = pci_get_drvdata(par->pdev); 319 struct backlight_device *bd; 320 char name[12]; 321 322 if (!par->FlatPanel) 323 return; 324 325#ifdef CONFIG_PMAC_BACKLIGHT 326 if (!machine_is(powermac) || 327 !pmac_has_backlight_type("mnca")) 328 return; 329#endif 330 331 snprintf(name, sizeof(name), "rivabl%d", info->node); 332 333 memset(&props, 0, sizeof(struct backlight_properties)); 334 props.type = BACKLIGHT_RAW; 335 props.max_brightness = FB_BACKLIGHT_LEVELS - 1; 336 bd = backlight_device_register(name, info->device, par, &riva_bl_ops, 337 &props); 338 if (IS_ERR(bd)) { 339 info->bl_dev = NULL; 340 printk(KERN_WARNING "riva: Backlight registration failed\n"); 341 goto error; 342 } 343 344 info->bl_dev = bd; 345 fb_bl_default_curve(info, 0, 346 MIN_LEVEL * FB_BACKLIGHT_MAX / MAX_LEVEL, 347 FB_BACKLIGHT_MAX); 348 349 bd->props.brightness = bd->props.max_brightness; 350 bd->props.power = BACKLIGHT_POWER_ON; 351 backlight_update_status(bd); 352 353 printk("riva: Backlight initialized (%s)\n", name); 354 355 return; 356 357error: 358 return; 359} 360 361static void riva_bl_exit(struct fb_info *info) 362{ 363 struct backlight_device *bd = info->bl_dev; 364 365 backlight_device_unregister(bd); 366 printk("riva: Backlight unloaded\n"); 367} 368#else 369static inline void riva_bl_init(struct riva_par *par) {} 370static inline void riva_bl_exit(struct fb_info *info) {} 371#endif /* CONFIG_FB_RIVA_BACKLIGHT */ 372 373/* ------------------------------------------------------------------------- * 374 * 375 * MMIO access macros 376 * 377 * ------------------------------------------------------------------------- */ 378 379static inline void CRTCout(struct riva_par *par, unsigned char index, 380 unsigned char val) 381{ 382 VGA_WR08(par->riva.PCIO, 0x3d4, index); 383 VGA_WR08(par->riva.PCIO, 0x3d5, val); 384} 385 386static inline unsigned char CRTCin(struct riva_par *par, 387 unsigned char index) 388{ 389 VGA_WR08(par->riva.PCIO, 0x3d4, index); 390 return (VGA_RD08(par->riva.PCIO, 0x3d5)); 391} 392 393static inline void GRAout(struct riva_par *par, unsigned char index, 394 unsigned char val) 395{ 396 VGA_WR08(par->riva.PVIO, 0x3ce, index); 397 VGA_WR08(par->riva.PVIO, 0x3cf, val); 398} 399 400static inline unsigned char GRAin(struct riva_par *par, 401 unsigned char index) 402{ 403 VGA_WR08(par->riva.PVIO, 0x3ce, index); 404 return (VGA_RD08(par->riva.PVIO, 0x3cf)); 405} 406 407static inline void SEQout(struct riva_par *par, unsigned char index, 408 unsigned char val) 409{ 410 VGA_WR08(par->riva.PVIO, 0x3c4, index); 411 VGA_WR08(par->riva.PVIO, 0x3c5, val); 412} 413 414static inline unsigned char SEQin(struct riva_par *par, 415 unsigned char index) 416{ 417 VGA_WR08(par->riva.PVIO, 0x3c4, index); 418 return (VGA_RD08(par->riva.PVIO, 0x3c5)); 419} 420 421static inline void ATTRout(struct riva_par *par, unsigned char index, 422 unsigned char val) 423{ 424 VGA_WR08(par->riva.PCIO, 0x3c0, index); 425 VGA_WR08(par->riva.PCIO, 0x3c0, val); 426} 427 428static inline unsigned char ATTRin(struct riva_par *par, 429 unsigned char index) 430{ 431 VGA_WR08(par->riva.PCIO, 0x3c0, index); 432 return (VGA_RD08(par->riva.PCIO, 0x3c1)); 433} 434 435static inline void MISCout(struct riva_par *par, unsigned char val) 436{ 437 VGA_WR08(par->riva.PVIO, 0x3c2, val); 438} 439 440static inline unsigned char MISCin(struct riva_par *par) 441{ 442 return (VGA_RD08(par->riva.PVIO, 0x3cc)); 443} 444 445static inline void reverse_order(u32 *l) 446{ 447 u8 *a = (u8 *)l; 448 a[0] = bitrev8(a[0]); 449 a[1] = bitrev8(a[1]); 450 a[2] = bitrev8(a[2]); 451 a[3] = bitrev8(a[3]); 452} 453 454/* ------------------------------------------------------------------------- * 455 * 456 * cursor stuff 457 * 458 * ------------------------------------------------------------------------- */ 459 460/** 461 * rivafb_load_cursor_image - load cursor image to hardware 462 * @data8: address to monochrome bitmap (1 = foreground color, 0 = background) 463 * @par: pointer to private data 464 * @w: width of cursor image in pixels 465 * @h: height of cursor image in scanlines 466 * @bg: background color (ARGB1555) - alpha bit determines opacity 467 * @fg: foreground color (ARGB1555) 468 * 469 * DESCRIPTiON: 470 * Loads cursor image based on a monochrome source and mask bitmap. The 471 * image bits determines the color of the pixel, 0 for background, 1 for 472 * foreground. Only the affected region (as determined by @w and @h 473 * parameters) will be updated. 474 * 475 * CALLED FROM: 476 * rivafb_cursor() 477 */ 478static void rivafb_load_cursor_image(struct riva_par *par, u8 *data8, 479 u16 bg, u16 fg, u32 w, u32 h) 480{ 481 int i, j, k = 0; 482 u32 b, tmp; 483 u32 *data = (u32 *)data8; 484 bg = le16_to_cpu(bg); 485 fg = le16_to_cpu(fg); 486 487 w = (w + 1) & ~1; 488 489 for (i = 0; i < h; i++) { 490 b = *data++; 491 reverse_order(&b); 492 493 for (j = 0; j < w/2; j++) { 494 tmp = 0; 495#if defined (__BIG_ENDIAN) 496 tmp = (b & (1 << 31)) ? fg << 16 : bg << 16; 497 b <<= 1; 498 tmp |= (b & (1 << 31)) ? fg : bg; 499 b <<= 1; 500#else 501 tmp = (b & 1) ? fg : bg; 502 b >>= 1; 503 tmp |= (b & 1) ? fg << 16 : bg << 16; 504 b >>= 1; 505#endif 506 writel(tmp, &par->riva.CURSOR[k++]); 507 } 508 k += (MAX_CURS - w)/2; 509 } 510} 511 512/* ------------------------------------------------------------------------- * 513 * 514 * general utility functions 515 * 516 * ------------------------------------------------------------------------- */ 517 518/** 519 * riva_wclut - set CLUT entry 520 * @chip: pointer to RIVA_HW_INST object 521 * @regnum: register number 522 * @red: red component 523 * @green: green component 524 * @blue: blue component 525 * 526 * DESCRIPTION: 527 * Sets color register @regnum. 528 * 529 * CALLED FROM: 530 * rivafb_setcolreg() 531 */ 532static void riva_wclut(RIVA_HW_INST *chip, 533 unsigned char regnum, unsigned char red, 534 unsigned char green, unsigned char blue) 535{ 536 VGA_WR08(chip->PDIO, 0x3c8, regnum); 537 VGA_WR08(chip->PDIO, 0x3c9, red); 538 VGA_WR08(chip->PDIO, 0x3c9, green); 539 VGA_WR08(chip->PDIO, 0x3c9, blue); 540} 541 542/** 543 * riva_rclut - read fromCLUT register 544 * @chip: pointer to RIVA_HW_INST object 545 * @regnum: register number 546 * @red: red component 547 * @green: green component 548 * @blue: blue component 549 * 550 * DESCRIPTION: 551 * Reads red, green, and blue from color register @regnum. 552 * 553 * CALLED FROM: 554 * rivafb_setcolreg() 555 */ 556static void riva_rclut(RIVA_HW_INST *chip, 557 unsigned char regnum, unsigned char *red, 558 unsigned char *green, unsigned char *blue) 559{ 560 561 VGA_WR08(chip->PDIO, 0x3c7, regnum); 562 *red = VGA_RD08(chip->PDIO, 0x3c9); 563 *green = VGA_RD08(chip->PDIO, 0x3c9); 564 *blue = VGA_RD08(chip->PDIO, 0x3c9); 565} 566 567/** 568 * riva_save_state - saves current chip state 569 * @par: pointer to riva_par object containing info for current riva board 570 * @regs: pointer to riva_regs object 571 * 572 * DESCRIPTION: 573 * Saves current chip state to @regs. 574 * 575 * CALLED FROM: 576 * rivafb_probe() 577 */ 578/* from GGI */ 579static void riva_save_state(struct riva_par *par, struct riva_regs *regs) 580{ 581 int i; 582 583 NVTRACE_ENTER(); 584 par->riva.LockUnlock(&par->riva, 0); 585 586 par->riva.UnloadStateExt(&par->riva, ®s->ext); 587 588 regs->misc_output = MISCin(par); 589 590 for (i = 0; i < NUM_CRT_REGS; i++) 591 regs->crtc[i] = CRTCin(par, i); 592 593 for (i = 0; i < NUM_ATC_REGS; i++) 594 regs->attr[i] = ATTRin(par, i); 595 596 for (i = 0; i < NUM_GRC_REGS; i++) 597 regs->gra[i] = GRAin(par, i); 598 599 for (i = 0; i < NUM_SEQ_REGS; i++) 600 regs->seq[i] = SEQin(par, i); 601 NVTRACE_LEAVE(); 602} 603 604/** 605 * riva_load_state - loads current chip state 606 * @par: pointer to riva_par object containing info for current riva board 607 * @regs: pointer to riva_regs object 608 * 609 * DESCRIPTION: 610 * Loads chip state from @regs. 611 * 612 * CALLED FROM: 613 * riva_load_video_mode() 614 * rivafb_probe() 615 * rivafb_remove() 616 */ 617/* from GGI */ 618static void riva_load_state(struct riva_par *par, struct riva_regs *regs) 619{ 620 RIVA_HW_STATE *state = ®s->ext; 621 int i; 622 623 NVTRACE_ENTER(); 624 CRTCout(par, 0x11, 0x00); 625 626 par->riva.LockUnlock(&par->riva, 0); 627 628 par->riva.LoadStateExt(&par->riva, state); 629 630 MISCout(par, regs->misc_output); 631 632 for (i = 0; i < NUM_CRT_REGS; i++) { 633 switch (i) { 634 case 0x19: 635 case 0x20 ... 0x40: 636 break; 637 default: 638 CRTCout(par, i, regs->crtc[i]); 639 } 640 } 641 642 for (i = 0; i < NUM_ATC_REGS; i++) 643 ATTRout(par, i, regs->attr[i]); 644 645 for (i = 0; i < NUM_GRC_REGS; i++) 646 GRAout(par, i, regs->gra[i]); 647 648 for (i = 0; i < NUM_SEQ_REGS; i++) 649 SEQout(par, i, regs->seq[i]); 650 NVTRACE_LEAVE(); 651} 652 653/** 654 * riva_load_video_mode - calculate timings 655 * @info: pointer to fb_info object containing info for current riva board 656 * 657 * DESCRIPTION: 658 * Calculate some timings and then send em off to riva_load_state(). 659 * 660 * CALLED FROM: 661 * rivafb_set_par() 662 */ 663static int riva_load_video_mode(struct fb_info *info) 664{ 665 int bpp, width, hDisplaySize, hDisplay, hStart, 666 hEnd, hTotal, height, vDisplay, vStart, vEnd, vTotal, dotClock; 667 int hBlankStart, hBlankEnd, vBlankStart, vBlankEnd; 668 int rc; 669 struct riva_par *par = info->par; 670 struct riva_regs newmode; 671 672 NVTRACE_ENTER(); 673 /* time to calculate */ 674 rivafb_blank(FB_BLANK_NORMAL, info); 675 676 bpp = info->var.bits_per_pixel; 677 if (bpp == 16 && info->var.green.length == 5) 678 bpp = 15; 679 width = info->var.xres_virtual; 680 hDisplaySize = info->var.xres; 681 hDisplay = (hDisplaySize / 8) - 1; 682 hStart = (hDisplaySize + info->var.right_margin) / 8 - 1; 683 hEnd = (hDisplaySize + info->var.right_margin + 684 info->var.hsync_len) / 8 - 1; 685 hTotal = (hDisplaySize + info->var.right_margin + 686 info->var.hsync_len + info->var.left_margin) / 8 - 5; 687 hBlankStart = hDisplay; 688 hBlankEnd = hTotal + 4; 689 690 height = info->var.yres_virtual; 691 vDisplay = info->var.yres - 1; 692 vStart = info->var.yres + info->var.lower_margin - 1; 693 vEnd = info->var.yres + info->var.lower_margin + 694 info->var.vsync_len - 1; 695 vTotal = info->var.yres + info->var.lower_margin + 696 info->var.vsync_len + info->var.upper_margin + 2; 697 vBlankStart = vDisplay; 698 vBlankEnd = vTotal + 1; 699 dotClock = 1000000000 / info->var.pixclock; 700 701 memcpy(&newmode, ®_template, sizeof(struct riva_regs)); 702 703 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) 704 vTotal |= 1; 705 706 if (par->FlatPanel) { 707 vStart = vTotal - 3; 708 vEnd = vTotal - 2; 709 vBlankStart = vStart; 710 hStart = hTotal - 3; 711 hEnd = hTotal - 2; 712 hBlankEnd = hTotal + 4; 713 } 714 715 newmode.crtc[0x0] = Set8Bits (hTotal); 716 newmode.crtc[0x1] = Set8Bits (hDisplay); 717 newmode.crtc[0x2] = Set8Bits (hBlankStart); 718 newmode.crtc[0x3] = SetBitField (hBlankEnd, 4: 0, 4:0) | SetBit (7); 719 newmode.crtc[0x4] = Set8Bits (hStart); 720 newmode.crtc[0x5] = SetBitField (hBlankEnd, 5: 5, 7:7) 721 | SetBitField (hEnd, 4: 0, 4:0); 722 newmode.crtc[0x6] = SetBitField (vTotal, 7: 0, 7:0); 723 newmode.crtc[0x7] = SetBitField (vTotal, 8: 8, 0:0) 724 | SetBitField (vDisplay, 8: 8, 1:1) 725 | SetBitField (vStart, 8: 8, 2:2) 726 | SetBitField (vBlankStart, 8: 8, 3:3) 727 | SetBit (4) 728 | SetBitField (vTotal, 9: 9, 5:5) 729 | SetBitField (vDisplay, 9: 9, 6:6) 730 | SetBitField (vStart, 9: 9, 7:7); 731 newmode.crtc[0x9] = SetBitField (vBlankStart, 9: 9, 5:5) 732 | SetBit (6); 733 newmode.crtc[0x10] = Set8Bits (vStart); 734 newmode.crtc[0x11] = SetBitField (vEnd, 3: 0, 3:0) 735 | SetBit (5); 736 newmode.crtc[0x12] = Set8Bits (vDisplay); 737 newmode.crtc[0x13] = (width / 8) * ((bpp + 1) / 8); 738 newmode.crtc[0x15] = Set8Bits (vBlankStart); 739 newmode.crtc[0x16] = Set8Bits (vBlankEnd); 740 741 newmode.ext.screen = SetBitField(hBlankEnd,6:6,4:4) 742 | SetBitField(vBlankStart,10:10,3:3) 743 | SetBitField(vStart,10:10,2:2) 744 | SetBitField(vDisplay,10:10,1:1) 745 | SetBitField(vTotal,10:10,0:0); 746 newmode.ext.horiz = SetBitField(hTotal,8:8,0:0) 747 | SetBitField(hDisplay,8:8,1:1) 748 | SetBitField(hBlankStart,8:8,2:2) 749 | SetBitField(hStart,8:8,3:3); 750 newmode.ext.extra = SetBitField(vTotal,11:11,0:0) 751 | SetBitField(vDisplay,11:11,2:2) 752 | SetBitField(vStart,11:11,4:4) 753 | SetBitField(vBlankStart,11:11,6:6); 754 755 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) { 756 int tmp = (hTotal >> 1) & ~1; 757 newmode.ext.interlace = Set8Bits(tmp); 758 newmode.ext.horiz |= SetBitField(tmp, 8:8,4:4); 759 } else 760 newmode.ext.interlace = 0xff; /* interlace off */ 761 762 if (par->riva.Architecture >= NV_ARCH_10) 763 par->riva.CURSOR = (U032 __iomem *)(info->screen_base + par->riva.CursorStart); 764 765 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) 766 newmode.misc_output &= ~0x40; 767 else 768 newmode.misc_output |= 0x40; 769 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) 770 newmode.misc_output &= ~0x80; 771 else 772 newmode.misc_output |= 0x80; 773 774 rc = CalcStateExt(&par->riva, &newmode.ext, par->pdev, bpp, width, 775 hDisplaySize, height, dotClock); 776 if (rc) 777 goto out; 778 779 newmode.ext.scale = NV_RD32(par->riva.PRAMDAC, 0x00000848) & 780 0xfff000ff; 781 if (par->FlatPanel == 1) { 782 newmode.ext.pixel |= (1 << 7); 783 newmode.ext.scale |= (1 << 8); 784 } 785 if (par->SecondCRTC) { 786 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) & 787 ~0x00001000; 788 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) | 789 0x00001000; 790 newmode.ext.crtcOwner = 3; 791 newmode.ext.pllsel |= 0x20000800; 792 newmode.ext.vpll2 = newmode.ext.vpll; 793 } else if (par->riva.twoHeads) { 794 newmode.ext.head = NV_RD32(par->riva.PCRTC0, 0x00000860) | 795 0x00001000; 796 newmode.ext.head2 = NV_RD32(par->riva.PCRTC0, 0x00002860) & 797 ~0x00001000; 798 newmode.ext.crtcOwner = 0; 799 newmode.ext.vpll2 = NV_RD32(par->riva.PRAMDAC0, 0x00000520); 800 } 801 if (par->FlatPanel == 1) { 802 newmode.ext.pixel |= (1 << 7); 803 newmode.ext.scale |= (1 << 8); 804 } 805 newmode.ext.cursorConfig = 0x02000100; 806 par->current_state = newmode; 807 riva_load_state(par, &par->current_state); 808 par->riva.LockUnlock(&par->riva, 0); /* important for HW cursor */ 809 810out: 811 rivafb_blank(FB_BLANK_UNBLANK, info); 812 NVTRACE_LEAVE(); 813 814 return rc; 815} 816 817static void riva_update_var(struct fb_var_screeninfo *var, 818 const struct fb_videomode *modedb) 819{ 820 NVTRACE_ENTER(); 821 var->xres = var->xres_virtual = modedb->xres; 822 var->yres = modedb->yres; 823 if (var->yres_virtual < var->yres) 824 var->yres_virtual = var->yres; 825 var->xoffset = var->yoffset = 0; 826 var->pixclock = modedb->pixclock; 827 var->left_margin = modedb->left_margin; 828 var->right_margin = modedb->right_margin; 829 var->upper_margin = modedb->upper_margin; 830 var->lower_margin = modedb->lower_margin; 831 var->hsync_len = modedb->hsync_len; 832 var->vsync_len = modedb->vsync_len; 833 var->sync = modedb->sync; 834 var->vmode = modedb->vmode; 835 NVTRACE_LEAVE(); 836} 837 838/** 839 * rivafb_do_maximize - 840 * @info: pointer to fb_info object containing info for current riva board 841 * @var: standard kernel fb changeable data 842 * @nom: nom 843 * @den: den 844 * 845 * DESCRIPTION: 846 * . 847 * 848 * RETURNS: 849 * -EINVAL on failure, 0 on success 850 * 851 * 852 * CALLED FROM: 853 * rivafb_check_var() 854 */ 855static int rivafb_do_maximize(struct fb_info *info, 856 struct fb_var_screeninfo *var, 857 int nom, int den) 858{ 859 static struct { 860 int xres, yres; 861 } modes[] = { 862 {1600, 1280}, 863 {1280, 1024}, 864 {1024, 768}, 865 {800, 600}, 866 {640, 480}, 867 {-1, -1} 868 }; 869 int i; 870 871 NVTRACE_ENTER(); 872 /* use highest possible virtual resolution */ 873 if (var->xres_virtual == -1 && var->yres_virtual == -1) { 874 printk(KERN_WARNING PFX 875 "using maximum available virtual resolution\n"); 876 for (i = 0; modes[i].xres != -1; i++) { 877 if (modes[i].xres * nom / den * modes[i].yres < 878 info->fix.smem_len) 879 break; 880 } 881 if (modes[i].xres == -1) { 882 printk(KERN_ERR PFX 883 "could not find a virtual resolution that fits into video memory!!\n"); 884 NVTRACE("EXIT - EINVAL error\n"); 885 return -EINVAL; 886 } 887 var->xres_virtual = modes[i].xres; 888 var->yres_virtual = modes[i].yres; 889 890 printk(KERN_INFO PFX 891 "virtual resolution set to maximum of %dx%d\n", 892 var->xres_virtual, var->yres_virtual); 893 } else if (var->xres_virtual == -1) { 894 var->xres_virtual = (info->fix.smem_len * den / 895 (nom * var->yres_virtual)) & ~15; 896 printk(KERN_WARNING PFX 897 "setting virtual X resolution to %d\n", var->xres_virtual); 898 } else if (var->yres_virtual == -1) { 899 var->xres_virtual = (var->xres_virtual + 15) & ~15; 900 var->yres_virtual = info->fix.smem_len * den / 901 (nom * var->xres_virtual); 902 printk(KERN_WARNING PFX 903 "setting virtual Y resolution to %d\n", var->yres_virtual); 904 } else { 905 var->xres_virtual = (var->xres_virtual + 15) & ~15; 906 if (var->xres_virtual * nom / den * var->yres_virtual > info->fix.smem_len) { 907 printk(KERN_ERR PFX 908 "mode %dx%dx%d rejected...resolution too high to fit into video memory!\n", 909 var->xres, var->yres, var->bits_per_pixel); 910 NVTRACE("EXIT - EINVAL error\n"); 911 return -EINVAL; 912 } 913 } 914 915 if (var->xres_virtual * nom / den >= 8192) { 916 printk(KERN_WARNING PFX 917 "virtual X resolution (%d) is too high, lowering to %d\n", 918 var->xres_virtual, 8192 * den / nom - 16); 919 var->xres_virtual = 8192 * den / nom - 16; 920 } 921 922 if (var->xres_virtual < var->xres) { 923 printk(KERN_ERR PFX 924 "virtual X resolution (%d) is smaller than real\n", var->xres_virtual); 925 return -EINVAL; 926 } 927 928 if (var->yres_virtual < var->yres) { 929 printk(KERN_ERR PFX 930 "virtual Y resolution (%d) is smaller than real\n", var->yres_virtual); 931 return -EINVAL; 932 } 933 if (var->yres_virtual > 0x7fff/nom) 934 var->yres_virtual = 0x7fff/nom; 935 if (var->xres_virtual > 0x7fff/nom) 936 var->xres_virtual = 0x7fff/nom; 937 NVTRACE_LEAVE(); 938 return 0; 939} 940 941static void 942riva_set_pattern(struct riva_par *par, int clr0, int clr1, int pat0, int pat1) 943{ 944 RIVA_FIFO_FREE(par->riva, Patt, 4); 945 NV_WR32(&par->riva.Patt->Color0, 0, clr0); 946 NV_WR32(&par->riva.Patt->Color1, 0, clr1); 947 NV_WR32(par->riva.Patt->Monochrome, 0, pat0); 948 NV_WR32(par->riva.Patt->Monochrome, 4, pat1); 949} 950 951/* acceleration routines */ 952static inline void wait_for_idle(struct riva_par *par) 953{ 954 while (par->riva.Busy(&par->riva)); 955} 956 957/* 958 * Set ROP. Translate X rop into ROP3. Internal routine. 959 */ 960static void 961riva_set_rop_solid(struct riva_par *par, int rop) 962{ 963 riva_set_pattern(par, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); 964 RIVA_FIFO_FREE(par->riva, Rop, 1); 965 NV_WR32(&par->riva.Rop->Rop3, 0, rop); 966 967} 968 969static void riva_setup_accel(struct fb_info *info) 970{ 971 struct riva_par *par = info->par; 972 973 RIVA_FIFO_FREE(par->riva, Clip, 2); 974 NV_WR32(&par->riva.Clip->TopLeft, 0, 0x0); 975 NV_WR32(&par->riva.Clip->WidthHeight, 0, 976 (info->var.xres_virtual & 0xffff) | 977 (info->var.yres_virtual << 16)); 978 riva_set_rop_solid(par, 0xcc); 979 wait_for_idle(par); 980} 981 982/** 983 * riva_get_cmap_len - query current color map length 984 * @var: standard kernel fb changeable data 985 * 986 * DESCRIPTION: 987 * Get current color map length. 988 * 989 * RETURNS: 990 * Length of color map 991 * 992 * CALLED FROM: 993 * rivafb_setcolreg() 994 */ 995static int riva_get_cmap_len(const struct fb_var_screeninfo *var) 996{ 997 int rc = 256; /* reasonable default */ 998 999 switch (var->green.length) { 1000 case 8: 1001 rc = 256; /* 256 entries (2^8), 8 bpp and RGB8888 */ 1002 break; 1003 case 5: 1004 rc = 32; /* 32 entries (2^5), 16 bpp, RGB555 */ 1005 break; 1006 case 6: 1007 rc = 64; /* 64 entries (2^6), 16 bpp, RGB565 */ 1008 break; 1009 default: 1010 /* should not occur */ 1011 break; 1012 } 1013 return rc; 1014} 1015 1016/* ------------------------------------------------------------------------- * 1017 * 1018 * framebuffer operations 1019 * 1020 * ------------------------------------------------------------------------- */ 1021 1022static int rivafb_open(struct fb_info *info, int user) 1023{ 1024 struct riva_par *par = info->par; 1025 1026 NVTRACE_ENTER(); 1027 mutex_lock(&par->open_lock); 1028 if (!par->ref_count) { 1029#ifdef CONFIG_X86 1030 memset(&par->state, 0, sizeof(struct vgastate)); 1031 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS; 1032 /* save the DAC for Riva128 */ 1033 if (par->riva.Architecture == NV_ARCH_03) 1034 par->state.flags |= VGA_SAVE_CMAP; 1035 save_vga(&par->state); 1036#endif 1037 /* vgaHWunlock() + riva unlock (0x7F) */ 1038 CRTCout(par, 0x11, 0xFF); 1039 par->riva.LockUnlock(&par->riva, 0); 1040 1041 riva_save_state(par, &par->initial_state); 1042 } 1043 par->ref_count++; 1044 mutex_unlock(&par->open_lock); 1045 NVTRACE_LEAVE(); 1046 return 0; 1047} 1048 1049static int rivafb_release(struct fb_info *info, int user) 1050{ 1051 struct riva_par *par = info->par; 1052 1053 NVTRACE_ENTER(); 1054 mutex_lock(&par->open_lock); 1055 if (!par->ref_count) { 1056 mutex_unlock(&par->open_lock); 1057 return -EINVAL; 1058 } 1059 if (par->ref_count == 1) { 1060 par->riva.LockUnlock(&par->riva, 0); 1061 par->riva.LoadStateExt(&par->riva, &par->initial_state.ext); 1062 riva_load_state(par, &par->initial_state); 1063#ifdef CONFIG_X86 1064 restore_vga(&par->state); 1065#endif 1066 par->riva.LockUnlock(&par->riva, 1); 1067 } 1068 par->ref_count--; 1069 mutex_unlock(&par->open_lock); 1070 NVTRACE_LEAVE(); 1071 return 0; 1072} 1073 1074static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 1075{ 1076 const struct fb_videomode *mode; 1077 struct riva_par *par = info->par; 1078 int nom, den; /* translating from pixels->bytes */ 1079 int mode_valid = 0; 1080 1081 NVTRACE_ENTER(); 1082 if (!var->pixclock) 1083 return -EINVAL; 1084 1085 switch (var->bits_per_pixel) { 1086 case 1 ... 8: 1087 var->red.offset = var->green.offset = var->blue.offset = 0; 1088 var->red.length = var->green.length = var->blue.length = 8; 1089 var->bits_per_pixel = 8; 1090 nom = den = 1; 1091 break; 1092 case 9 ... 15: 1093 var->green.length = 5; 1094 fallthrough; 1095 case 16: 1096 var->bits_per_pixel = 16; 1097 /* The Riva128 supports RGB555 only */ 1098 if (par->riva.Architecture == NV_ARCH_03) 1099 var->green.length = 5; 1100 if (var->green.length == 5) { 1101 /* 0rrrrrgg gggbbbbb */ 1102 var->red.offset = 10; 1103 var->green.offset = 5; 1104 var->blue.offset = 0; 1105 var->red.length = 5; 1106 var->green.length = 5; 1107 var->blue.length = 5; 1108 } else { 1109 /* rrrrrggg gggbbbbb */ 1110 var->red.offset = 11; 1111 var->green.offset = 5; 1112 var->blue.offset = 0; 1113 var->red.length = 5; 1114 var->green.length = 6; 1115 var->blue.length = 5; 1116 } 1117 nom = 2; 1118 den = 1; 1119 break; 1120 case 17 ... 32: 1121 var->red.length = var->green.length = var->blue.length = 8; 1122 var->bits_per_pixel = 32; 1123 var->red.offset = 16; 1124 var->green.offset = 8; 1125 var->blue.offset = 0; 1126 nom = 4; 1127 den = 1; 1128 break; 1129 default: 1130 printk(KERN_ERR PFX 1131 "mode %dx%dx%d rejected...color depth not supported.\n", 1132 var->xres, var->yres, var->bits_per_pixel); 1133 NVTRACE("EXIT, returning -EINVAL\n"); 1134 return -EINVAL; 1135 } 1136 1137 if (!strictmode) { 1138 if (!info->monspecs.vfmax || !info->monspecs.hfmax || 1139 !info->monspecs.dclkmax || !fb_validate_mode(var, info)) 1140 mode_valid = 1; 1141 } 1142 1143 /* calculate modeline if supported by monitor */ 1144 if (!mode_valid && info->monspecs.gtf) { 1145 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info)) 1146 mode_valid = 1; 1147 } 1148 1149 if (!mode_valid) { 1150 mode = fb_find_best_mode(var, &info->modelist); 1151 if (mode) { 1152 riva_update_var(var, mode); 1153 mode_valid = 1; 1154 } 1155 } 1156 1157 if (!mode_valid && info->monspecs.modedb_len) 1158 return -EINVAL; 1159 1160 if (var->xres_virtual < var->xres) 1161 var->xres_virtual = var->xres; 1162 if (var->yres_virtual <= var->yres) 1163 var->yres_virtual = -1; 1164 if (rivafb_do_maximize(info, var, nom, den) < 0) 1165 return -EINVAL; 1166 1167 /* truncate xoffset and yoffset to maximum if too high */ 1168 if (var->xoffset > var->xres_virtual - var->xres) 1169 var->xoffset = var->xres_virtual - var->xres - 1; 1170 1171 if (var->yoffset > var->yres_virtual - var->yres) 1172 var->yoffset = var->yres_virtual - var->yres - 1; 1173 1174 var->red.msb_right = 1175 var->green.msb_right = 1176 var->blue.msb_right = 1177 var->transp.offset = var->transp.length = var->transp.msb_right = 0; 1178 NVTRACE_LEAVE(); 1179 return 0; 1180} 1181 1182static int rivafb_set_par(struct fb_info *info) 1183{ 1184 struct riva_par *par = info->par; 1185 int rc = 0; 1186 1187 NVTRACE_ENTER(); 1188 /* vgaHWunlock() + riva unlock (0x7F) */ 1189 CRTCout(par, 0x11, 0xFF); 1190 par->riva.LockUnlock(&par->riva, 0); 1191 rc = riva_load_video_mode(info); 1192 if (rc) 1193 goto out; 1194 if(!(info->flags & FBINFO_HWACCEL_DISABLED)) 1195 riva_setup_accel(info); 1196 1197 par->cursor_reset = 1; 1198 info->fix.line_length = (info->var.xres_virtual * (info->var.bits_per_pixel >> 3)); 1199 info->fix.visual = (info->var.bits_per_pixel == 8) ? 1200 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; 1201 1202 if (info->flags & FBINFO_HWACCEL_DISABLED) 1203 info->pixmap.scan_align = 1; 1204 else 1205 info->pixmap.scan_align = 4; 1206 1207out: 1208 NVTRACE_LEAVE(); 1209 return rc; 1210} 1211 1212/** 1213 * rivafb_pan_display 1214 * @var: standard kernel fb changeable data 1215 * @info: pointer to fb_info object containing info for current riva board 1216 * 1217 * DESCRIPTION: 1218 * Pan (or wrap, depending on the `vmode' field) the display using the 1219 * `xoffset' and `yoffset' fields of the `var' structure. 1220 * If the values don't fit, return -EINVAL. 1221 * 1222 * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag 1223 */ 1224static int rivafb_pan_display(struct fb_var_screeninfo *var, 1225 struct fb_info *info) 1226{ 1227 struct riva_par *par = info->par; 1228 unsigned int base; 1229 1230 NVTRACE_ENTER(); 1231 base = var->yoffset * info->fix.line_length + var->xoffset; 1232 par->riva.SetStartAddress(&par->riva, base); 1233 NVTRACE_LEAVE(); 1234 return 0; 1235} 1236 1237static int rivafb_blank(int blank, struct fb_info *info) 1238{ 1239 struct riva_par *par= info->par; 1240 unsigned char tmp, vesa; 1241 1242 tmp = SEQin(par, 0x01) & ~0x20; /* screen on/off */ 1243 vesa = CRTCin(par, 0x1a) & ~0xc0; /* sync on/off */ 1244 1245 NVTRACE_ENTER(); 1246 1247 if (blank) 1248 tmp |= 0x20; 1249 1250 switch (blank) { 1251 case FB_BLANK_UNBLANK: 1252 case FB_BLANK_NORMAL: 1253 break; 1254 case FB_BLANK_VSYNC_SUSPEND: 1255 vesa |= 0x80; 1256 break; 1257 case FB_BLANK_HSYNC_SUSPEND: 1258 vesa |= 0x40; 1259 break; 1260 case FB_BLANK_POWERDOWN: 1261 vesa |= 0xc0; 1262 break; 1263 } 1264 1265 SEQout(par, 0x01, tmp); 1266 CRTCout(par, 0x1a, vesa); 1267 1268 NVTRACE_LEAVE(); 1269 1270 return 0; 1271} 1272 1273/** 1274 * rivafb_setcolreg 1275 * @regno: register index 1276 * @red: red component 1277 * @green: green component 1278 * @blue: blue component 1279 * @transp: transparency 1280 * @info: pointer to fb_info object containing info for current riva board 1281 * 1282 * DESCRIPTION: 1283 * Set a single color register. The values supplied have a 16 bit 1284 * magnitude. 1285 * 1286 * RETURNS: 1287 * Return != 0 for invalid regno. 1288 * 1289 * CALLED FROM: 1290 * fbcmap.c:fb_set_cmap() 1291 */ 1292static int rivafb_setcolreg(unsigned regno, unsigned red, unsigned green, 1293 unsigned blue, unsigned transp, 1294 struct fb_info *info) 1295{ 1296 struct riva_par *par = info->par; 1297 RIVA_HW_INST *chip = &par->riva; 1298 int i; 1299 1300 if (regno >= riva_get_cmap_len(&info->var)) 1301 return -EINVAL; 1302 1303 if (info->var.grayscale) { 1304 /* gray = 0.30*R + 0.59*G + 0.11*B */ 1305 red = green = blue = 1306 (red * 77 + green * 151 + blue * 28) >> 8; 1307 } 1308 1309 if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) { 1310 ((u32 *) info->pseudo_palette)[regno] = 1311 (regno << info->var.red.offset) | 1312 (regno << info->var.green.offset) | 1313 (regno << info->var.blue.offset); 1314 /* 1315 * The Riva128 2D engine requires color information in 1316 * TrueColor format even if framebuffer is in DirectColor 1317 */ 1318 if (par->riva.Architecture == NV_ARCH_03) { 1319 switch (info->var.bits_per_pixel) { 1320 case 16: 1321 par->palette[regno] = ((red & 0xf800) >> 1) | 1322 ((green & 0xf800) >> 6) | 1323 ((blue & 0xf800) >> 11); 1324 break; 1325 case 32: 1326 par->palette[regno] = ((red & 0xff00) << 8) | 1327 ((green & 0xff00)) | 1328 ((blue & 0xff00) >> 8); 1329 break; 1330 } 1331 } 1332 } 1333 1334 switch (info->var.bits_per_pixel) { 1335 case 8: 1336 /* "transparent" stuff is completely ignored. */ 1337 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8); 1338 break; 1339 case 16: 1340 if (info->var.green.length == 5) { 1341 for (i = 0; i < 8; i++) { 1342 riva_wclut(chip, regno*8+i, red >> 8, 1343 green >> 8, blue >> 8); 1344 } 1345 } else { 1346 u8 r, g, b; 1347 1348 if (regno < 32) { 1349 for (i = 0; i < 8; i++) { 1350 riva_wclut(chip, regno*8+i, 1351 red >> 8, green >> 8, 1352 blue >> 8); 1353 } 1354 } 1355 riva_rclut(chip, regno*4, &r, &g, &b); 1356 for (i = 0; i < 4; i++) 1357 riva_wclut(chip, regno*4+i, r, 1358 green >> 8, b); 1359 } 1360 break; 1361 case 32: 1362 riva_wclut(chip, regno, red >> 8, green >> 8, blue >> 8); 1363 break; 1364 default: 1365 /* do nothing */ 1366 break; 1367 } 1368 return 0; 1369} 1370 1371/** 1372 * rivafb_fillrect - hardware accelerated color fill function 1373 * @info: pointer to fb_info structure 1374 * @rect: pointer to fb_fillrect structure 1375 * 1376 * DESCRIPTION: 1377 * This function fills up a region of framebuffer memory with a solid 1378 * color with a choice of two different ROP's, copy or invert. 1379 * 1380 * CALLED FROM: 1381 * framebuffer hook 1382 */ 1383static void rivafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) 1384{ 1385 struct riva_par *par = info->par; 1386 u_int color, rop = 0; 1387 1388 if ((info->flags & FBINFO_HWACCEL_DISABLED)) { 1389 cfb_fillrect(info, rect); 1390 return; 1391 } 1392 1393 if (info->var.bits_per_pixel == 8) 1394 color = rect->color; 1395 else { 1396 if (par->riva.Architecture != NV_ARCH_03) 1397 color = ((u32 *)info->pseudo_palette)[rect->color]; 1398 else 1399 color = par->palette[rect->color]; 1400 } 1401 1402 switch (rect->rop) { 1403 case ROP_XOR: 1404 rop = 0x66; 1405 break; 1406 case ROP_COPY: 1407 default: 1408 rop = 0xCC; 1409 break; 1410 } 1411 1412 riva_set_rop_solid(par, rop); 1413 1414 RIVA_FIFO_FREE(par->riva, Bitmap, 1); 1415 NV_WR32(&par->riva.Bitmap->Color1A, 0, color); 1416 1417 RIVA_FIFO_FREE(par->riva, Bitmap, 2); 1418 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].TopLeft, 0, 1419 (rect->dx << 16) | rect->dy); 1420 mb(); 1421 NV_WR32(&par->riva.Bitmap->UnclippedRectangle[0].WidthHeight, 0, 1422 (rect->width << 16) | rect->height); 1423 mb(); 1424 riva_set_rop_solid(par, 0xcc); 1425 1426} 1427 1428/** 1429 * rivafb_copyarea - hardware accelerated blit function 1430 * @info: pointer to fb_info structure 1431 * @region: pointer to fb_copyarea structure 1432 * 1433 * DESCRIPTION: 1434 * This copies an area of pixels from one location to another 1435 * 1436 * CALLED FROM: 1437 * framebuffer hook 1438 */ 1439static void rivafb_copyarea(struct fb_info *info, const struct fb_copyarea *region) 1440{ 1441 struct riva_par *par = info->par; 1442 1443 if ((info->flags & FBINFO_HWACCEL_DISABLED)) { 1444 cfb_copyarea(info, region); 1445 return; 1446 } 1447 1448 RIVA_FIFO_FREE(par->riva, Blt, 3); 1449 NV_WR32(&par->riva.Blt->TopLeftSrc, 0, 1450 (region->sy << 16) | region->sx); 1451 NV_WR32(&par->riva.Blt->TopLeftDst, 0, 1452 (region->dy << 16) | region->dx); 1453 mb(); 1454 NV_WR32(&par->riva.Blt->WidthHeight, 0, 1455 (region->height << 16) | region->width); 1456 mb(); 1457} 1458 1459static inline void convert_bgcolor_16(u32 *col) 1460{ 1461 *col = ((*col & 0x0000F800) << 8) 1462 | ((*col & 0x00007E0) << 5) 1463 | ((*col & 0x0000001F) << 3) 1464 | 0xFF000000; 1465 mb(); 1466} 1467 1468/** 1469 * rivafb_imageblit: hardware accelerated color expand function 1470 * @info: pointer to fb_info structure 1471 * @image: pointer to fb_image structure 1472 * 1473 * DESCRIPTION: 1474 * If the source is a monochrome bitmap, the function fills up a a region 1475 * of framebuffer memory with pixels whose color is determined by the bit 1476 * setting of the bitmap, 1 - foreground, 0 - background. 1477 * 1478 * If the source is not a monochrome bitmap, color expansion is not done. 1479 * In this case, it is channeled to a software function. 1480 * 1481 * CALLED FROM: 1482 * framebuffer hook 1483 */ 1484static void rivafb_imageblit(struct fb_info *info, 1485 const struct fb_image *image) 1486{ 1487 struct riva_par *par = info->par; 1488 u32 fgx = 0, bgx = 0, width, tmp; 1489 u8 *cdat = (u8 *) image->data; 1490 volatile u32 __iomem *d; 1491 int i, size; 1492 1493 if ((info->flags & FBINFO_HWACCEL_DISABLED) || image->depth != 1) { 1494 cfb_imageblit(info, image); 1495 return; 1496 } 1497 1498 switch (info->var.bits_per_pixel) { 1499 case 8: 1500 fgx = image->fg_color; 1501 bgx = image->bg_color; 1502 break; 1503 case 16: 1504 case 32: 1505 if (par->riva.Architecture != NV_ARCH_03) { 1506 fgx = ((u32 *)info->pseudo_palette)[image->fg_color]; 1507 bgx = ((u32 *)info->pseudo_palette)[image->bg_color]; 1508 } else { 1509 fgx = par->palette[image->fg_color]; 1510 bgx = par->palette[image->bg_color]; 1511 } 1512 if (info->var.green.length == 6) 1513 convert_bgcolor_16(&bgx); 1514 break; 1515 } 1516 1517 RIVA_FIFO_FREE(par->riva, Bitmap, 7); 1518 NV_WR32(&par->riva.Bitmap->ClipE.TopLeft, 0, 1519 (image->dy << 16) | (image->dx & 0xFFFF)); 1520 NV_WR32(&par->riva.Bitmap->ClipE.BottomRight, 0, 1521 (((image->dy + image->height) << 16) | 1522 ((image->dx + image->width) & 0xffff))); 1523 NV_WR32(&par->riva.Bitmap->Color0E, 0, bgx); 1524 NV_WR32(&par->riva.Bitmap->Color1E, 0, fgx); 1525 NV_WR32(&par->riva.Bitmap->WidthHeightInE, 0, 1526 (image->height << 16) | ((image->width + 31) & ~31)); 1527 NV_WR32(&par->riva.Bitmap->WidthHeightOutE, 0, 1528 (image->height << 16) | ((image->width + 31) & ~31)); 1529 NV_WR32(&par->riva.Bitmap->PointE, 0, 1530 (image->dy << 16) | (image->dx & 0xFFFF)); 1531 1532 d = &par->riva.Bitmap->MonochromeData01E; 1533 1534 width = (image->width + 31)/32; 1535 size = width * image->height; 1536 while (size >= 16) { 1537 RIVA_FIFO_FREE(par->riva, Bitmap, 16); 1538 for (i = 0; i < 16; i++) { 1539 tmp = *((u32 *)cdat); 1540 cdat = (u8 *)((u32 *)cdat + 1); 1541 reverse_order(&tmp); 1542 NV_WR32(d, i*4, tmp); 1543 } 1544 size -= 16; 1545 } 1546 if (size) { 1547 RIVA_FIFO_FREE(par->riva, Bitmap, size); 1548 for (i = 0; i < size; i++) { 1549 tmp = *((u32 *) cdat); 1550 cdat = (u8 *)((u32 *)cdat + 1); 1551 reverse_order(&tmp); 1552 NV_WR32(d, i*4, tmp); 1553 } 1554 } 1555} 1556 1557/** 1558 * rivafb_cursor - hardware cursor function 1559 * @info: pointer to info structure 1560 * @cursor: pointer to fbcursor structure 1561 * 1562 * DESCRIPTION: 1563 * A cursor function that supports displaying a cursor image via hardware. 1564 * Within the kernel, copy and invert rops are supported. If exported 1565 * to user space, only the copy rop will be supported. 1566 * 1567 * CALLED FROM 1568 * framebuffer hook 1569 */ 1570static int rivafb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1571{ 1572 struct riva_par *par = info->par; 1573 u8 data[MAX_CURS * MAX_CURS/8]; 1574 int i, set = cursor->set; 1575 u16 fg, bg; 1576 1577 if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS) 1578 return -ENXIO; 1579 1580 par->riva.ShowHideCursor(&par->riva, 0); 1581 1582 if (par->cursor_reset) { 1583 set = FB_CUR_SETALL; 1584 par->cursor_reset = 0; 1585 } 1586 1587 if (set & FB_CUR_SETSIZE) 1588 memset_io(par->riva.CURSOR, 0, MAX_CURS * MAX_CURS * 2); 1589 1590 if (set & FB_CUR_SETPOS) { 1591 u32 xx, yy, temp; 1592 1593 yy = cursor->image.dy - info->var.yoffset; 1594 xx = cursor->image.dx - info->var.xoffset; 1595 temp = xx & 0xFFFF; 1596 temp |= yy << 16; 1597 1598 NV_WR32(par->riva.PRAMDAC, 0x0000300, temp); 1599 } 1600 1601 1602 if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) { 1603 u32 bg_idx = cursor->image.bg_color; 1604 u32 fg_idx = cursor->image.fg_color; 1605 u32 s_pitch = (cursor->image.width+7) >> 3; 1606 u32 d_pitch = MAX_CURS/8; 1607 u8 *dat = (u8 *) cursor->image.data; 1608 u8 *msk = (u8 *) cursor->mask; 1609 u8 *src; 1610 1611 src = kmalloc_array(s_pitch, cursor->image.height, GFP_ATOMIC); 1612 1613 if (src) { 1614 switch (cursor->rop) { 1615 case ROP_XOR: 1616 for (i = 0; i < s_pitch * cursor->image.height; i++) 1617 src[i] = dat[i] ^ msk[i]; 1618 break; 1619 case ROP_COPY: 1620 default: 1621 for (i = 0; i < s_pitch * cursor->image.height; i++) 1622 src[i] = dat[i] & msk[i]; 1623 break; 1624 } 1625 1626 fb_pad_aligned_buffer(data, d_pitch, src, s_pitch, 1627 cursor->image.height); 1628 1629 bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) | 1630 ((info->cmap.green[bg_idx] & 0xf8) << 2) | 1631 ((info->cmap.blue[bg_idx] & 0xf8) >> 3) | 1632 1 << 15; 1633 1634 fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) | 1635 ((info->cmap.green[fg_idx] & 0xf8) << 2) | 1636 ((info->cmap.blue[fg_idx] & 0xf8) >> 3) | 1637 1 << 15; 1638 1639 par->riva.LockUnlock(&par->riva, 0); 1640 1641 rivafb_load_cursor_image(par, data, bg, fg, 1642 cursor->image.width, 1643 cursor->image.height); 1644 kfree(src); 1645 } 1646 } 1647 1648 if (cursor->enable) 1649 par->riva.ShowHideCursor(&par->riva, 1); 1650 1651 return 0; 1652} 1653 1654static int rivafb_sync(struct fb_info *info) 1655{ 1656 struct riva_par *par = info->par; 1657 1658 wait_for_idle(par); 1659 return 0; 1660} 1661 1662/* ------------------------------------------------------------------------- * 1663 * 1664 * initialization helper functions 1665 * 1666 * ------------------------------------------------------------------------- */ 1667 1668/* kernel interface */ 1669static const struct fb_ops riva_fb_ops = { 1670 .owner = THIS_MODULE, 1671 .fb_open = rivafb_open, 1672 .fb_release = rivafb_release, 1673 __FB_DEFAULT_IOMEM_OPS_RDWR, 1674 .fb_check_var = rivafb_check_var, 1675 .fb_set_par = rivafb_set_par, 1676 .fb_setcolreg = rivafb_setcolreg, 1677 .fb_pan_display = rivafb_pan_display, 1678 .fb_blank = rivafb_blank, 1679 .fb_fillrect = rivafb_fillrect, 1680 .fb_copyarea = rivafb_copyarea, 1681 .fb_imageblit = rivafb_imageblit, 1682 .fb_cursor = rivafb_cursor, 1683 .fb_sync = rivafb_sync, 1684 __FB_DEFAULT_IOMEM_OPS_MMAP, 1685}; 1686 1687static int riva_set_fbinfo(struct fb_info *info) 1688{ 1689 unsigned int cmap_len; 1690 struct riva_par *par = info->par; 1691 1692 NVTRACE_ENTER(); 1693 info->flags = FBINFO_HWACCEL_XPAN 1694 | FBINFO_HWACCEL_YPAN 1695 | FBINFO_HWACCEL_COPYAREA 1696 | FBINFO_HWACCEL_FILLRECT 1697 | FBINFO_HWACCEL_IMAGEBLIT; 1698 1699 /* Accel seems to not work properly on NV30 yet...*/ 1700 if ((par->riva.Architecture == NV_ARCH_30) || noaccel) { 1701 printk(KERN_DEBUG PFX "disabling acceleration\n"); 1702 info->flags |= FBINFO_HWACCEL_DISABLED; 1703 } 1704 1705 info->var = rivafb_default_var; 1706 info->fix.visual = (info->var.bits_per_pixel == 8) ? 1707 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR; 1708 1709 info->pseudo_palette = par->pseudo_palette; 1710 1711 cmap_len = riva_get_cmap_len(&info->var); 1712 fb_alloc_cmap(&info->cmap, cmap_len, 0); 1713 1714 info->pixmap.size = 8 * 1024; 1715 info->pixmap.buf_align = 4; 1716 info->pixmap.access_align = 32; 1717 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1718 info->var.yres_virtual = -1; 1719 NVTRACE_LEAVE(); 1720 return (rivafb_check_var(&info->var, info)); 1721} 1722 1723static int riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd) 1724{ 1725 struct riva_par *par = info->par; 1726 struct device_node *dp; 1727 const unsigned char *pedid = NULL; 1728 const unsigned char *disptype = NULL; 1729 static char *propnames[] = { 1730 "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL }; 1731 int i; 1732 1733 NVTRACE_ENTER(); 1734 dp = pci_device_to_OF_node(pd); 1735 for (; dp != NULL; dp = dp->child) { 1736 disptype = of_get_property(dp, "display-type", NULL); 1737 if (disptype == NULL) 1738 continue; 1739 if (strncmp(disptype, "LCD", 3) != 0) 1740 continue; 1741 for (i = 0; propnames[i] != NULL; ++i) { 1742 pedid = of_get_property(dp, propnames[i], NULL); 1743 if (pedid != NULL) { 1744 par->EDID = (unsigned char *)pedid; 1745 NVTRACE("LCD found.\n"); 1746 return 1; 1747 } 1748 } 1749 } 1750 NVTRACE_LEAVE(); 1751 return 0; 1752} 1753 1754#if defined(CONFIG_FB_RIVA_I2C) 1755static int riva_get_EDID_i2c(struct fb_info *info) 1756{ 1757 struct riva_par *par = info->par; 1758 struct fb_var_screeninfo var; 1759 int i; 1760 1761 NVTRACE_ENTER(); 1762 par->riva.LockUnlock(&par->riva, 0); 1763 riva_create_i2c_busses(par); 1764 for (i = 0; i < 3; i++) { 1765 if (!par->chan[i].par) 1766 continue; 1767 riva_probe_i2c_connector(par, i, &par->EDID); 1768 if (par->EDID && !fb_parse_edid(par->EDID, &var)) { 1769 printk(PFX "Found EDID Block from BUS %i\n", i); 1770 break; 1771 } 1772 } 1773 1774 NVTRACE_LEAVE(); 1775 return (par->EDID) ? 1 : 0; 1776} 1777#endif /* CONFIG_FB_RIVA_I2C */ 1778 1779static void riva_update_default_var(struct fb_var_screeninfo *var, 1780 struct fb_info *info) 1781{ 1782 struct fb_monspecs *specs = &info->monspecs; 1783 struct fb_videomode modedb; 1784 1785 NVTRACE_ENTER(); 1786 /* respect mode options */ 1787 if (mode_option) { 1788 fb_find_mode(var, info, mode_option, 1789 specs->modedb, specs->modedb_len, 1790 NULL, 8); 1791 } else if (specs->modedb != NULL) { 1792 /* get first mode in database as fallback */ 1793 modedb = specs->modedb[0]; 1794 /* get preferred timing */ 1795 if (info->monspecs.misc & FB_MISC_1ST_DETAIL) { 1796 int i; 1797 1798 for (i = 0; i < specs->modedb_len; i++) { 1799 if (specs->modedb[i].flag & FB_MODE_IS_FIRST) { 1800 modedb = specs->modedb[i]; 1801 break; 1802 } 1803 } 1804 } 1805 var->bits_per_pixel = 8; 1806 riva_update_var(var, &modedb); 1807 } 1808 NVTRACE_LEAVE(); 1809} 1810 1811 1812static void riva_get_EDID(struct fb_info *info, struct pci_dev *pdev) 1813{ 1814 NVTRACE_ENTER(); 1815 if (riva_get_EDID_OF(info, pdev)) { 1816 NVTRACE_LEAVE(); 1817 return; 1818 } 1819 if (IS_ENABLED(CONFIG_OF)) 1820 printk(PFX "could not retrieve EDID from OF\n"); 1821#if defined(CONFIG_FB_RIVA_I2C) 1822 if (!riva_get_EDID_i2c(info)) 1823 printk(PFX "could not retrieve EDID from DDC/I2C\n"); 1824#endif 1825 NVTRACE_LEAVE(); 1826} 1827 1828 1829static void riva_get_edidinfo(struct fb_info *info) 1830{ 1831 struct fb_var_screeninfo *var = &rivafb_default_var; 1832 struct riva_par *par = info->par; 1833 1834 fb_edid_to_monspecs(par->EDID, &info->monspecs); 1835 fb_videomode_to_modelist(info->monspecs.modedb, info->monspecs.modedb_len, 1836 &info->modelist); 1837 riva_update_default_var(var, info); 1838 1839 /* if user specified flatpanel, we respect that */ 1840 if (info->monspecs.input & FB_DISP_DDI) 1841 par->FlatPanel = 1; 1842} 1843 1844/* ------------------------------------------------------------------------- * 1845 * 1846 * PCI bus 1847 * 1848 * ------------------------------------------------------------------------- */ 1849 1850static u32 riva_get_arch(struct pci_dev *pd) 1851{ 1852 u32 arch = 0; 1853 1854 switch (pd->device & 0x0ff0) { 1855 case 0x0100: /* GeForce 256 */ 1856 case 0x0110: /* GeForce2 MX */ 1857 case 0x0150: /* GeForce2 */ 1858 case 0x0170: /* GeForce4 MX */ 1859 case 0x0180: /* GeForce4 MX (8x AGP) */ 1860 case 0x01A0: /* nForce */ 1861 case 0x01F0: /* nForce2 */ 1862 arch = NV_ARCH_10; 1863 break; 1864 case 0x0200: /* GeForce3 */ 1865 case 0x0250: /* GeForce4 Ti */ 1866 case 0x0280: /* GeForce4 Ti (8x AGP) */ 1867 arch = NV_ARCH_20; 1868 break; 1869 case 0x0300: /* GeForceFX 5800 */ 1870 case 0x0310: /* GeForceFX 5600 */ 1871 case 0x0320: /* GeForceFX 5200 */ 1872 case 0x0330: /* GeForceFX 5900 */ 1873 case 0x0340: /* GeForceFX 5700 */ 1874 arch = NV_ARCH_30; 1875 break; 1876 case 0x0020: /* TNT, TNT2 */ 1877 arch = NV_ARCH_04; 1878 break; 1879 case 0x0010: /* Riva128 */ 1880 arch = NV_ARCH_03; 1881 break; 1882 default: /* unknown architecture */ 1883 break; 1884 } 1885 return arch; 1886} 1887 1888static int rivafb_probe(struct pci_dev *pd, const struct pci_device_id *ent) 1889{ 1890 struct riva_par *default_par; 1891 struct fb_info *info; 1892 int ret; 1893 1894 NVTRACE_ENTER(); 1895 assert(pd != NULL); 1896 1897 ret = aperture_remove_conflicting_pci_devices(pd, "rivafb"); 1898 if (ret) 1899 return ret; 1900 1901 info = framebuffer_alloc(sizeof(struct riva_par), &pd->dev); 1902 if (!info) { 1903 ret = -ENOMEM; 1904 goto err_ret; 1905 } 1906 default_par = info->par; 1907 default_par->pdev = pd; 1908 1909 info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL); 1910 if (info->pixmap.addr == NULL) { 1911 ret = -ENOMEM; 1912 goto err_framebuffer_release; 1913 } 1914 1915 ret = pci_enable_device(pd); 1916 if (ret < 0) { 1917 printk(KERN_ERR PFX "cannot enable PCI device\n"); 1918 goto err_free_pixmap; 1919 } 1920 1921 ret = pci_request_regions(pd, "rivafb"); 1922 if (ret < 0) { 1923 printk(KERN_ERR PFX "cannot request PCI regions\n"); 1924 goto err_disable_device; 1925 } 1926 1927 mutex_init(&default_par->open_lock); 1928 default_par->riva.Architecture = riva_get_arch(pd); 1929 1930 default_par->Chipset = (pd->vendor << 16) | pd->device; 1931 printk(KERN_INFO PFX "nVidia device/chipset %X\n",default_par->Chipset); 1932 1933 if(default_par->riva.Architecture == 0) { 1934 printk(KERN_ERR PFX "unknown NV_ARCH\n"); 1935 ret=-ENODEV; 1936 goto err_release_region; 1937 } 1938 if(default_par->riva.Architecture == NV_ARCH_10 || 1939 default_par->riva.Architecture == NV_ARCH_20 || 1940 default_par->riva.Architecture == NV_ARCH_30) { 1941 sprintf(rivafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4); 1942 } else { 1943 sprintf(rivafb_fix.id, "NV%x", default_par->riva.Architecture); 1944 } 1945 1946 default_par->FlatPanel = flatpanel; 1947 if (flatpanel == 1) 1948 printk(KERN_INFO PFX "flatpanel support enabled\n"); 1949 default_par->forceCRTC = forceCRTC; 1950 1951 rivafb_fix.mmio_len = pci_resource_len(pd, 0); 1952 rivafb_fix.smem_len = pci_resource_len(pd, 1); 1953 1954 { 1955 /* enable IO and mem if not already done */ 1956 unsigned short cmd; 1957 1958 pci_read_config_word(pd, PCI_COMMAND, &cmd); 1959 cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY); 1960 pci_write_config_word(pd, PCI_COMMAND, cmd); 1961 } 1962 1963 rivafb_fix.mmio_start = pci_resource_start(pd, 0); 1964 rivafb_fix.smem_start = pci_resource_start(pd, 1); 1965 1966 default_par->ctrl_base = ioremap(rivafb_fix.mmio_start, 1967 rivafb_fix.mmio_len); 1968 if (!default_par->ctrl_base) { 1969 printk(KERN_ERR PFX "cannot ioremap MMIO base\n"); 1970 ret = -EIO; 1971 goto err_release_region; 1972 } 1973 1974 switch (default_par->riva.Architecture) { 1975 case NV_ARCH_03: 1976 /* Riva128's PRAMIN is in the "framebuffer" space 1977 * Since these cards were never made with more than 8 megabytes 1978 * we can safely allocate this separately. 1979 */ 1980 default_par->riva.PRAMIN = ioremap(rivafb_fix.smem_start + 0x00C00000, 0x00008000); 1981 if (!default_par->riva.PRAMIN) { 1982 printk(KERN_ERR PFX "cannot ioremap PRAMIN region\n"); 1983 ret = -EIO; 1984 goto err_iounmap_ctrl_base; 1985 } 1986 break; 1987 case NV_ARCH_04: 1988 case NV_ARCH_10: 1989 case NV_ARCH_20: 1990 case NV_ARCH_30: 1991 default_par->riva.PCRTC0 = 1992 (u32 __iomem *)(default_par->ctrl_base + 0x00600000); 1993 default_par->riva.PRAMIN = 1994 (u32 __iomem *)(default_par->ctrl_base + 0x00710000); 1995 break; 1996 } 1997 riva_common_setup(default_par); 1998 1999 if (default_par->riva.Architecture == NV_ARCH_03) { 2000 default_par->riva.PCRTC = default_par->riva.PCRTC0 2001 = default_par->riva.PGRAPH; 2002 } 2003 2004 rivafb_fix.smem_len = riva_get_memlen(default_par) * 1024; 2005 default_par->dclk_max = riva_get_maxdclk(default_par) * 1000; 2006 info->screen_base = ioremap_wc(rivafb_fix.smem_start, 2007 rivafb_fix.smem_len); 2008 if (!info->screen_base) { 2009 printk(KERN_ERR PFX "cannot ioremap FB base\n"); 2010 ret = -EIO; 2011 goto err_iounmap_pramin; 2012 } 2013 2014 if (!nomtrr) 2015 default_par->wc_cookie = 2016 arch_phys_wc_add(rivafb_fix.smem_start, 2017 rivafb_fix.smem_len); 2018 2019 info->fbops = &riva_fb_ops; 2020 info->fix = rivafb_fix; 2021 riva_get_EDID(info, pd); 2022 riva_get_edidinfo(info); 2023 2024 ret=riva_set_fbinfo(info); 2025 if (ret < 0) { 2026 printk(KERN_ERR PFX "error setting initial video mode\n"); 2027 goto err_iounmap_screen_base; 2028 } 2029 2030 fb_destroy_modedb(info->monspecs.modedb); 2031 info->monspecs.modedb = NULL; 2032 2033 pci_set_drvdata(pd, info); 2034 2035 ret = register_framebuffer(info); 2036 if (ret < 0) { 2037 printk(KERN_ERR PFX 2038 "error registering riva framebuffer\n"); 2039 goto err_iounmap_screen_base; 2040 } 2041 2042 if (backlight) 2043 riva_bl_init(info->par); 2044 2045 printk(KERN_INFO PFX 2046 "PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n", 2047 info->fix.id, 2048 RIVAFB_VERSION, 2049 info->fix.smem_len / (1024 * 1024), 2050 info->fix.smem_start); 2051 2052 NVTRACE_LEAVE(); 2053 return 0; 2054 2055err_iounmap_screen_base: 2056#ifdef CONFIG_FB_RIVA_I2C 2057 riva_delete_i2c_busses(info->par); 2058#endif 2059 iounmap(info->screen_base); 2060err_iounmap_pramin: 2061 if (default_par->riva.Architecture == NV_ARCH_03) 2062 iounmap(default_par->riva.PRAMIN); 2063err_iounmap_ctrl_base: 2064 iounmap(default_par->ctrl_base); 2065err_release_region: 2066 pci_release_regions(pd); 2067err_disable_device: 2068err_free_pixmap: 2069 kfree(info->pixmap.addr); 2070err_framebuffer_release: 2071 framebuffer_release(info); 2072err_ret: 2073 return ret; 2074} 2075 2076static void rivafb_remove(struct pci_dev *pd) 2077{ 2078 struct fb_info *info = pci_get_drvdata(pd); 2079 struct riva_par *par = info->par; 2080 2081 NVTRACE_ENTER(); 2082 2083#ifdef CONFIG_FB_RIVA_I2C 2084 riva_delete_i2c_busses(par); 2085 kfree(par->EDID); 2086#endif 2087 2088 riva_bl_exit(info); 2089 unregister_framebuffer(info); 2090 2091 arch_phys_wc_del(par->wc_cookie); 2092 iounmap(par->ctrl_base); 2093 iounmap(info->screen_base); 2094 if (par->riva.Architecture == NV_ARCH_03) 2095 iounmap(par->riva.PRAMIN); 2096 pci_release_regions(pd); 2097 kfree(info->pixmap.addr); 2098 framebuffer_release(info); 2099 NVTRACE_LEAVE(); 2100} 2101 2102/* ------------------------------------------------------------------------- * 2103 * 2104 * initialization 2105 * 2106 * ------------------------------------------------------------------------- */ 2107 2108#ifndef MODULE 2109static int rivafb_setup(char *options) 2110{ 2111 char *this_opt; 2112 2113 NVTRACE_ENTER(); 2114 if (!options || !*options) 2115 return 0; 2116 2117 while ((this_opt = strsep(&options, ",")) != NULL) { 2118 if (!strncmp(this_opt, "forceCRTC", 9)) { 2119 char *p; 2120 2121 p = this_opt + 9; 2122 if (!*p || !*(++p)) continue; 2123 forceCRTC = *p - '0'; 2124 if (forceCRTC < 0 || forceCRTC > 1) 2125 forceCRTC = -1; 2126 } else if (!strncmp(this_opt, "flatpanel", 9)) { 2127 flatpanel = 1; 2128 } else if (!strncmp(this_opt, "backlight:", 10)) { 2129 backlight = simple_strtoul(this_opt+10, NULL, 0); 2130 } else if (!strncmp(this_opt, "nomtrr", 6)) { 2131 nomtrr = 1; 2132 } else if (!strncmp(this_opt, "strictmode", 10)) { 2133 strictmode = 1; 2134 } else if (!strncmp(this_opt, "noaccel", 7)) { 2135 noaccel = 1; 2136 } else 2137 mode_option = this_opt; 2138 } 2139 NVTRACE_LEAVE(); 2140 return 0; 2141} 2142#endif /* !MODULE */ 2143 2144static struct pci_driver rivafb_driver = { 2145 .name = "rivafb", 2146 .id_table = rivafb_pci_tbl, 2147 .probe = rivafb_probe, 2148 .remove = rivafb_remove, 2149}; 2150 2151 2152 2153/* ------------------------------------------------------------------------- * 2154 * 2155 * modularization 2156 * 2157 * ------------------------------------------------------------------------- */ 2158 2159static int rivafb_init(void) 2160{ 2161#ifndef MODULE 2162 char *option = NULL; 2163#endif 2164 2165 if (fb_modesetting_disabled("rivafb")) 2166 return -ENODEV; 2167 2168#ifndef MODULE 2169 if (fb_get_options("rivafb", &option)) 2170 return -ENODEV; 2171 rivafb_setup(option); 2172#endif 2173 return pci_register_driver(&rivafb_driver); 2174} 2175 2176 2177module_init(rivafb_init); 2178 2179static void __exit rivafb_exit(void) 2180{ 2181 pci_unregister_driver(&rivafb_driver); 2182} 2183 2184module_exit(rivafb_exit); 2185 2186module_param(noaccel, bool, 0); 2187MODULE_PARM_DESC(noaccel, "bool: disable acceleration"); 2188module_param(flatpanel, int, 0); 2189MODULE_PARM_DESC(flatpanel, "Enables experimental flat panel support for some chipsets. (0 or 1=enabled) (default=0)"); 2190module_param(forceCRTC, int, 0); 2191MODULE_PARM_DESC(forceCRTC, "Forces usage of a particular CRTC in case autodetection fails. (0 or 1) (default=autodetect)"); 2192module_param(nomtrr, bool, 0); 2193MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) (default=0)"); 2194module_param(strictmode, bool, 0); 2195MODULE_PARM_DESC(strictmode, "Only use video modes from EDID"); 2196 2197MODULE_AUTHOR("Ani Joshi, maintainer"); 2198MODULE_DESCRIPTION("Framebuffer driver for nVidia Riva 128, TNT, TNT2, and the GeForce series"); 2199MODULE_LICENSE("GPL");
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