1 // SPDX-License-Identifier: GPL-2.0-only 2 /* $Id: aty128fb.c,v 1.1.1.1.36.1 1999/12/11 09:03:05 Exp $ 3 * linux/drivers/video/aty128fb.c -- Frame buffer device for ATI Rage128 4 * 5 * Copyright (C) 1999-2003, Brad Douglas <brad@neruo.com> 6 * Copyright (C) 1999, Anthony Tong <atong@uiuc.edu> 7 * 8 * Ani Joshi / Jeff Garzik 9 * - Code cleanup 10 * 11 * Michel Danzer <michdaen@iiic.ethz.ch> 12 * - 15/16 bit cleanup 13 * - fix panning 14 * 15 * Benjamin Herrenschmidt 16 * - pmac-specific PM stuff 17 * - various fixes & cleanups 18 * 19 * Andreas Hundt <andi@convergence.de> 20 * - FB_ACTIVATE fixes 21 * 22 * Paul Mackerras <paulus@samba.org> 23 * - Convert to new framebuffer API, 24 * fix colormap setting at 16 bits/pixel (565) 25 * 26 * Paul Mundt 27 * - PCI hotplug 28 * 29 * Jon Smirl <jonsmirl@yahoo.com> 30 * - PCI ID update 31 * - replace ROM BIOS search 32 * 33 * Based off of Geert's atyfb.c and vfb.c. 34 * 35 * TODO: 36 * - monitor sensing (DDC) 37 * - virtual display 38 * - other platform support (only ppc/x86 supported) 39 * - hardware cursor support 40 * 41 * Please cc: your patches to brad@neruo.com. 42 */ 43 44 /* 45 * A special note of gratitude to ATI's devrel for providing documentation, 46 * example code and hardware. Thanks Nitya. -atong and brad 47 */ 48 49 50 #include <linux/aperture.h> 51 #include <linux/module.h> 52 #include <linux/moduleparam.h> 53 #include <linux/kernel.h> 54 #include <linux/errno.h> 55 #include <linux/string.h> 56 #include <linux/mm.h> 57 #include <linux/vmalloc.h> 58 #include <linux/delay.h> 59 #include <linux/interrupt.h> 60 #include <linux/uaccess.h> 61 #include <linux/fb.h> 62 #include <linux/init.h> 63 #include <linux/pci.h> 64 #include <linux/ioport.h> 65 #include <linux/console.h> 66 #include <linux/backlight.h> 67 #include <asm/io.h> 68 69 #ifdef CONFIG_PPC_PMAC 70 #include <asm/machdep.h> 71 #include <asm/pmac_feature.h> 72 #include "../macmodes.h" 73 #endif 74 75 #ifdef CONFIG_PMAC_BACKLIGHT 76 #include <asm/backlight.h> 77 #endif 78 79 #ifdef CONFIG_BOOTX_TEXT 80 #include <asm/btext.h> 81 #endif /* CONFIG_BOOTX_TEXT */ 82 83 #include <video/aty128.h> 84 85 /* Debug flag */ 86 #undef DEBUG 87 88 #ifdef DEBUG 89 #define DBG(fmt, args...) \ 90 printk(KERN_DEBUG "aty128fb: %s " fmt, __func__, ##args); 91 #else 92 #define DBG(fmt, args...) 93 #endif 94 95 #ifndef CONFIG_PPC_PMAC 96 /* default mode */ 97 static const struct fb_var_screeninfo default_var = { 98 /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */ 99 640, 480, 640, 480, 0, 0, 8, 0, 100 {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 101 0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2, 102 0, FB_VMODE_NONINTERLACED 103 }; 104 105 #else /* CONFIG_PPC_PMAC */ 106 /* default to 1024x768 at 75Hz on PPC - this will work 107 * on the iMac, the usual 640x480 @ 60Hz doesn't. */ 108 static const struct fb_var_screeninfo default_var = { 109 /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */ 110 1024, 768, 1024, 768, 0, 0, 8, 0, 111 {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 112 0, 0, -1, -1, 0, 12699, 160, 32, 28, 1, 96, 3, 113 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 114 FB_VMODE_NONINTERLACED 115 }; 116 #endif /* CONFIG_PPC_PMAC */ 117 118 /* default modedb mode */ 119 /* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */ 120 static const struct fb_videomode defaultmode = { 121 .refresh = 60, 122 .xres = 640, 123 .yres = 480, 124 .pixclock = 39722, 125 .left_margin = 48, 126 .right_margin = 16, 127 .upper_margin = 33, 128 .lower_margin = 10, 129 .hsync_len = 96, 130 .vsync_len = 2, 131 .sync = 0, 132 .vmode = FB_VMODE_NONINTERLACED 133 }; 134 135 /* Chip generations */ 136 enum { 137 rage_128, 138 rage_128_pci, 139 rage_128_pro, 140 rage_128_pro_pci, 141 rage_M3, 142 rage_M3_pci, 143 rage_M4, 144 rage_128_ultra, 145 }; 146 147 /* Must match above enum */ 148 static char * const r128_family[] = { 149 "AGP", 150 "PCI", 151 "PRO AGP", 152 "PRO PCI", 153 "M3 AGP", 154 "M3 PCI", 155 "M4 AGP", 156 "Ultra AGP", 157 }; 158 159 /* 160 * PCI driver prototypes 161 */ 162 static int aty128_probe(struct pci_dev *pdev, 163 const struct pci_device_id *ent); 164 static void aty128_remove(struct pci_dev *pdev); 165 static int aty128_pci_suspend_late(struct device *dev, pm_message_t state); 166 static int __maybe_unused aty128_pci_suspend(struct device *dev); 167 static int __maybe_unused aty128_pci_hibernate(struct device *dev); 168 static int __maybe_unused aty128_pci_freeze(struct device *dev); 169 static int __maybe_unused aty128_pci_resume(struct device *dev); 170 static int aty128_do_resume(struct pci_dev *pdev); 171 172 static const struct dev_pm_ops aty128_pci_pm_ops = { 173 .suspend = aty128_pci_suspend, 174 .resume = aty128_pci_resume, 175 .freeze = aty128_pci_freeze, 176 .thaw = aty128_pci_resume, 177 .poweroff = aty128_pci_hibernate, 178 .restore = aty128_pci_resume, 179 }; 180 181 /* supported Rage128 chipsets */ 182 static const struct pci_device_id aty128_pci_tbl[] = { 183 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LE, 184 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3_pci }, 185 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LF, 186 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3 }, 187 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_MF, 188 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M4 }, 189 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_ML, 190 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M4 }, 191 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PA, 192 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 193 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PB, 194 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 195 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PC, 196 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 197 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PD, 198 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, 199 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PE, 200 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 201 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PF, 202 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 203 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PG, 204 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 205 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PH, 206 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 207 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PI, 208 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 209 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PJ, 210 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 211 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PK, 212 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 213 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PL, 214 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 215 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PM, 216 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 217 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PN, 218 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 219 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PO, 220 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 221 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PP, 222 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, 223 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PQ, 224 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 225 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PR, 226 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, 227 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PS, 228 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 229 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PT, 230 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 231 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PU, 232 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 233 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PV, 234 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 235 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PW, 236 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 237 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PX, 238 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 239 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RE, 240 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, 241 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RF, 242 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 243 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RG, 244 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 245 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RK, 246 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, 247 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RL, 248 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 249 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SE, 250 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 251 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SF, 252 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, 253 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SG, 254 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 255 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SH, 256 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 257 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SK, 258 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 259 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SL, 260 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 261 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SM, 262 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 263 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SN, 264 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 265 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TF, 266 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 267 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TL, 268 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 269 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TR, 270 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 271 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TS, 272 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 273 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TT, 274 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 275 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TU, 276 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 277 { 0, } 278 }; 279 280 MODULE_DEVICE_TABLE(pci, aty128_pci_tbl); 281 282 static struct pci_driver aty128fb_driver = { 283 .name = "aty128fb", 284 .id_table = aty128_pci_tbl, 285 .probe = aty128_probe, 286 .remove = aty128_remove, 287 .driver.pm = &aty128_pci_pm_ops, 288 }; 289 290 /* packed BIOS settings */ 291 #ifndef CONFIG_PPC 292 typedef struct { 293 u8 clock_chip_type; 294 u8 struct_size; 295 u8 accelerator_entry; 296 u8 VGA_entry; 297 u16 VGA_table_offset; 298 u16 POST_table_offset; 299 u16 XCLK; 300 u16 MCLK; 301 u8 num_PLL_blocks; 302 u8 size_PLL_blocks; 303 u16 PCLK_ref_freq; 304 u16 PCLK_ref_divider; 305 u32 PCLK_min_freq; 306 u32 PCLK_max_freq; 307 u16 MCLK_ref_freq; 308 u16 MCLK_ref_divider; 309 u32 MCLK_min_freq; 310 u32 MCLK_max_freq; 311 u16 XCLK_ref_freq; 312 u16 XCLK_ref_divider; 313 u32 XCLK_min_freq; 314 u32 XCLK_max_freq; 315 } __attribute__ ((packed)) PLL_BLOCK; 316 #endif /* !CONFIG_PPC */ 317 318 /* onboard memory information */ 319 struct aty128_meminfo { 320 u8 ML; 321 u8 MB; 322 u8 Trcd; 323 u8 Trp; 324 u8 Twr; 325 u8 CL; 326 u8 Tr2w; 327 u8 LoopLatency; 328 u8 DspOn; 329 u8 Rloop; 330 const char *name; 331 }; 332 333 /* various memory configurations */ 334 static const struct aty128_meminfo sdr_128 = { 335 .ML = 4, 336 .MB = 4, 337 .Trcd = 3, 338 .Trp = 3, 339 .Twr = 1, 340 .CL = 3, 341 .Tr2w = 1, 342 .LoopLatency = 16, 343 .DspOn = 30, 344 .Rloop = 16, 345 .name = "128-bit SDR SGRAM (1:1)", 346 }; 347 348 static const struct aty128_meminfo sdr_sgram = { 349 .ML = 4, 350 .MB = 4, 351 .Trcd = 1, 352 .Trp = 2, 353 .Twr = 1, 354 .CL = 2, 355 .Tr2w = 1, 356 .LoopLatency = 16, 357 .DspOn = 24, 358 .Rloop = 16, 359 .name = "64-bit SDR SGRAM (2:1)", 360 }; 361 362 static const struct aty128_meminfo ddr_sgram = { 363 .ML = 4, 364 .MB = 4, 365 .Trcd = 3, 366 .Trp = 3, 367 .Twr = 2, 368 .CL = 3, 369 .Tr2w = 1, 370 .LoopLatency = 16, 371 .DspOn = 31, 372 .Rloop = 16, 373 .name = "64-bit DDR SGRAM", 374 }; 375 376 static const struct fb_fix_screeninfo aty128fb_fix = { 377 .id = "ATY Rage128", 378 .type = FB_TYPE_PACKED_PIXELS, 379 .visual = FB_VISUAL_PSEUDOCOLOR, 380 .xpanstep = 8, 381 .ypanstep = 1, 382 .mmio_len = 0x2000, 383 .accel = FB_ACCEL_ATI_RAGE128, 384 }; 385 386 static char *mode_option = NULL; 387 388 #ifdef CONFIG_PPC_PMAC 389 static int default_vmode = VMODE_1024_768_60; 390 static int default_cmode = CMODE_8; 391 #endif 392 393 static int default_crt_on = 0; 394 static int default_lcd_on = 1; 395 static bool mtrr = true; 396 397 #ifdef CONFIG_FB_ATY128_BACKLIGHT 398 static int backlight = IS_BUILTIN(CONFIG_PMAC_BACKLIGHT); 399 #endif 400 401 /* PLL constants */ 402 struct aty128_constants { 403 u32 ref_clk; 404 u32 ppll_min; 405 u32 ppll_max; 406 u32 ref_divider; 407 u32 xclk; 408 u32 fifo_width; 409 u32 fifo_depth; 410 }; 411 412 struct aty128_crtc { 413 u32 gen_cntl; 414 u32 h_total, h_sync_strt_wid; 415 u32 v_total, v_sync_strt_wid; 416 u32 pitch; 417 u32 offset, offset_cntl; 418 u32 xoffset, yoffset; 419 u32 vxres, vyres; 420 u32 depth, bpp; 421 }; 422 423 struct aty128_pll { 424 u32 post_divider; 425 u32 feedback_divider; 426 u32 vclk; 427 }; 428 429 struct aty128_ddafifo { 430 u32 dda_config; 431 u32 dda_on_off; 432 }; 433 434 /* register values for a specific mode */ 435 struct aty128fb_par { 436 struct aty128_crtc crtc; 437 struct aty128_pll pll; 438 struct aty128_ddafifo fifo_reg; 439 u32 accel_flags; 440 struct aty128_constants constants; /* PLL and others */ 441 void __iomem *regbase; /* remapped mmio */ 442 u32 vram_size; /* onboard video ram */ 443 int chip_gen; 444 const struct aty128_meminfo *mem; /* onboard mem info */ 445 int wc_cookie; 446 int blitter_may_be_busy; 447 int fifo_slots; /* free slots in FIFO (64 max) */ 448 449 int crt_on, lcd_on; 450 struct pci_dev *pdev; 451 struct fb_info *next; 452 int asleep; 453 int lock_blank; 454 455 u8 red[32]; /* see aty128fb_setcolreg */ 456 u8 green[64]; 457 u8 blue[32]; 458 u32 pseudo_palette[16]; /* used for TRUECOLOR */ 459 }; 460 461 462 #define round_div(n, d) ((n+(d/2))/d) 463 464 static int aty128fb_check_var(struct fb_var_screeninfo *var, 465 struct fb_info *info); 466 static int aty128fb_set_par(struct fb_info *info); 467 static int aty128fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, 468 u_int transp, struct fb_info *info); 469 static int aty128fb_pan_display(struct fb_var_screeninfo *var, 470 struct fb_info *fb); 471 static int aty128fb_blank(int blank, struct fb_info *fb); 472 static int aty128fb_ioctl(struct fb_info *info, u_int cmd, unsigned long arg); 473 static int aty128fb_sync(struct fb_info *info); 474 475 /* 476 * Internal routines 477 */ 478 479 static int aty128_encode_var(struct fb_var_screeninfo *var, 480 const struct aty128fb_par *par); 481 static int aty128_decode_var(struct fb_var_screeninfo *var, 482 struct aty128fb_par *par); 483 static void aty128_timings(struct aty128fb_par *par); 484 static void aty128_init_engine(struct aty128fb_par *par); 485 static void aty128_reset_engine(const struct aty128fb_par *par); 486 static void aty128_flush_pixel_cache(const struct aty128fb_par *par); 487 static void do_wait_for_fifo(u16 entries, struct aty128fb_par *par); 488 static void wait_for_fifo(u16 entries, struct aty128fb_par *par); 489 static void wait_for_idle(struct aty128fb_par *par); 490 static u32 depth_to_dst(u32 depth); 491 492 #ifdef CONFIG_FB_ATY128_BACKLIGHT 493 static void aty128_bl_set_power(struct fb_info *info, int power); 494 #endif 495 496 #define BIOS_IN8(v) (readb(bios + (v))) 497 #define BIOS_IN16(v) (readb(bios + (v)) | \ 498 (readb(bios + (v) + 1) << 8)) 499 #define BIOS_IN32(v) (readb(bios + (v)) | \ 500 (readb(bios + (v) + 1) << 8) | \ 501 (readb(bios + (v) + 2) << 16) | \ 502 (readb(bios + (v) + 3) << 24)) 503 504 505 static const struct fb_ops aty128fb_ops = { 506 .owner = THIS_MODULE, 507 FB_DEFAULT_IOMEM_OPS, 508 .fb_check_var = aty128fb_check_var, 509 .fb_set_par = aty128fb_set_par, 510 .fb_setcolreg = aty128fb_setcolreg, 511 .fb_pan_display = aty128fb_pan_display, 512 .fb_blank = aty128fb_blank, 513 .fb_ioctl = aty128fb_ioctl, 514 .fb_sync = aty128fb_sync, 515 }; 516 517 /* 518 * Functions to read from/write to the mmio registers 519 * - endian conversions may possibly be avoided by 520 * using the other register aperture. TODO. 521 */ 522 static inline u32 _aty_ld_le32(volatile unsigned int regindex, 523 const struct aty128fb_par *par) 524 { 525 return readl (par->regbase + regindex); 526 } 527 528 static inline void _aty_st_le32(volatile unsigned int regindex, u32 val, 529 const struct aty128fb_par *par) 530 { 531 writel (val, par->regbase + regindex); 532 } 533 534 static inline u8 _aty_ld_8(unsigned int regindex, 535 const struct aty128fb_par *par) 536 { 537 return readb (par->regbase + regindex); 538 } 539 540 static inline void _aty_st_8(unsigned int regindex, u8 val, 541 const struct aty128fb_par *par) 542 { 543 writeb (val, par->regbase + regindex); 544 } 545 546 #define aty_ld_le32(regindex) _aty_ld_le32(regindex, par) 547 #define aty_st_le32(regindex, val) _aty_st_le32(regindex, val, par) 548 #define aty_ld_8(regindex) _aty_ld_8(regindex, par) 549 #define aty_st_8(regindex, val) _aty_st_8(regindex, val, par) 550 551 /* 552 * Functions to read from/write to the pll registers 553 */ 554 555 #define aty_ld_pll(pll_index) _aty_ld_pll(pll_index, par) 556 #define aty_st_pll(pll_index, val) _aty_st_pll(pll_index, val, par) 557 558 559 static u32 _aty_ld_pll(unsigned int pll_index, 560 const struct aty128fb_par *par) 561 { 562 aty_st_8(CLOCK_CNTL_INDEX, pll_index & 0x3F); 563 return aty_ld_le32(CLOCK_CNTL_DATA); 564 } 565 566 567 static void _aty_st_pll(unsigned int pll_index, u32 val, 568 const struct aty128fb_par *par) 569 { 570 aty_st_8(CLOCK_CNTL_INDEX, (pll_index & 0x3F) | PLL_WR_EN); 571 aty_st_le32(CLOCK_CNTL_DATA, val); 572 } 573 574 575 /* return true when the PLL has completed an atomic update */ 576 static int aty_pll_readupdate(const struct aty128fb_par *par) 577 { 578 return !(aty_ld_pll(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R); 579 } 580 581 582 static void aty_pll_wait_readupdate(const struct aty128fb_par *par) 583 { 584 unsigned long timeout = jiffies + HZ/100; // should be more than enough 585 int reset = 1; 586 587 while (time_before(jiffies, timeout)) 588 if (aty_pll_readupdate(par)) { 589 reset = 0; 590 break; 591 } 592 593 if (reset) /* reset engine?? */ 594 printk(KERN_DEBUG "aty128fb: PLL write timeout!\n"); 595 } 596 597 598 /* tell PLL to update */ 599 static void aty_pll_writeupdate(const struct aty128fb_par *par) 600 { 601 aty_pll_wait_readupdate(par); 602 603 aty_st_pll(PPLL_REF_DIV, 604 aty_ld_pll(PPLL_REF_DIV) | PPLL_ATOMIC_UPDATE_W); 605 } 606 607 608 /* write to the scratch register to test r/w functionality */ 609 static int register_test(const struct aty128fb_par *par) 610 { 611 u32 val; 612 int flag = 0; 613 614 val = aty_ld_le32(BIOS_0_SCRATCH); 615 616 aty_st_le32(BIOS_0_SCRATCH, 0x55555555); 617 if (aty_ld_le32(BIOS_0_SCRATCH) == 0x55555555) { 618 aty_st_le32(BIOS_0_SCRATCH, 0xAAAAAAAA); 619 620 if (aty_ld_le32(BIOS_0_SCRATCH) == 0xAAAAAAAA) 621 flag = 1; 622 } 623 624 aty_st_le32(BIOS_0_SCRATCH, val); // restore value 625 return flag; 626 } 627 628 629 /* 630 * Accelerator engine functions 631 */ 632 static void do_wait_for_fifo(u16 entries, struct aty128fb_par *par) 633 { 634 int i; 635 636 for (;;) { 637 for (i = 0; i < 2000000; i++) { 638 par->fifo_slots = aty_ld_le32(GUI_STAT) & 0x0fff; 639 if (par->fifo_slots >= entries) 640 return; 641 } 642 aty128_reset_engine(par); 643 } 644 } 645 646 647 static void wait_for_idle(struct aty128fb_par *par) 648 { 649 int i; 650 651 do_wait_for_fifo(64, par); 652 653 for (;;) { 654 for (i = 0; i < 2000000; i++) { 655 if (!(aty_ld_le32(GUI_STAT) & (1 << 31))) { 656 aty128_flush_pixel_cache(par); 657 par->blitter_may_be_busy = 0; 658 return; 659 } 660 } 661 aty128_reset_engine(par); 662 } 663 } 664 665 666 static void wait_for_fifo(u16 entries, struct aty128fb_par *par) 667 { 668 if (par->fifo_slots < entries) 669 do_wait_for_fifo(64, par); 670 par->fifo_slots -= entries; 671 } 672 673 674 static void aty128_flush_pixel_cache(const struct aty128fb_par *par) 675 { 676 int i; 677 u32 tmp; 678 679 tmp = aty_ld_le32(PC_NGUI_CTLSTAT); 680 tmp &= ~(0x00ff); 681 tmp |= 0x00ff; 682 aty_st_le32(PC_NGUI_CTLSTAT, tmp); 683 684 for (i = 0; i < 2000000; i++) 685 if (!(aty_ld_le32(PC_NGUI_CTLSTAT) & PC_BUSY)) 686 break; 687 } 688 689 690 static void aty128_reset_engine(const struct aty128fb_par *par) 691 { 692 u32 gen_reset_cntl, clock_cntl_index, mclk_cntl; 693 694 aty128_flush_pixel_cache(par); 695 696 clock_cntl_index = aty_ld_le32(CLOCK_CNTL_INDEX); 697 mclk_cntl = aty_ld_pll(MCLK_CNTL); 698 699 aty_st_pll(MCLK_CNTL, mclk_cntl | 0x00030000); 700 701 gen_reset_cntl = aty_ld_le32(GEN_RESET_CNTL); 702 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl | SOFT_RESET_GUI); 703 aty_ld_le32(GEN_RESET_CNTL); 704 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl & ~(SOFT_RESET_GUI)); 705 aty_ld_le32(GEN_RESET_CNTL); 706 707 aty_st_pll(MCLK_CNTL, mclk_cntl); 708 aty_st_le32(CLOCK_CNTL_INDEX, clock_cntl_index); 709 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl); 710 711 /* use old pio mode */ 712 aty_st_le32(PM4_BUFFER_CNTL, PM4_BUFFER_CNTL_NONPM4); 713 714 DBG("engine reset"); 715 } 716 717 718 static void aty128_init_engine(struct aty128fb_par *par) 719 { 720 u32 pitch_value; 721 722 wait_for_idle(par); 723 724 /* 3D scaler not spoken here */ 725 wait_for_fifo(1, par); 726 aty_st_le32(SCALE_3D_CNTL, 0x00000000); 727 728 aty128_reset_engine(par); 729 730 pitch_value = par->crtc.pitch; 731 if (par->crtc.bpp == 24) { 732 pitch_value = pitch_value * 3; 733 } 734 735 wait_for_fifo(4, par); 736 /* setup engine offset registers */ 737 aty_st_le32(DEFAULT_OFFSET, 0x00000000); 738 739 /* setup engine pitch registers */ 740 aty_st_le32(DEFAULT_PITCH, pitch_value); 741 742 /* set the default scissor register to max dimensions */ 743 aty_st_le32(DEFAULT_SC_BOTTOM_RIGHT, (0x1FFF << 16) | 0x1FFF); 744 745 /* set the drawing controls registers */ 746 aty_st_le32(DP_GUI_MASTER_CNTL, 747 GMC_SRC_PITCH_OFFSET_DEFAULT | 748 GMC_DST_PITCH_OFFSET_DEFAULT | 749 GMC_SRC_CLIP_DEFAULT | 750 GMC_DST_CLIP_DEFAULT | 751 GMC_BRUSH_SOLIDCOLOR | 752 (depth_to_dst(par->crtc.depth) << 8) | 753 GMC_SRC_DSTCOLOR | 754 GMC_BYTE_ORDER_MSB_TO_LSB | 755 GMC_DP_CONVERSION_TEMP_6500 | 756 ROP3_PATCOPY | 757 GMC_DP_SRC_RECT | 758 GMC_3D_FCN_EN_CLR | 759 GMC_DST_CLR_CMP_FCN_CLEAR | 760 GMC_AUX_CLIP_CLEAR | 761 GMC_WRITE_MASK_SET); 762 763 wait_for_fifo(8, par); 764 /* clear the line drawing registers */ 765 aty_st_le32(DST_BRES_ERR, 0); 766 aty_st_le32(DST_BRES_INC, 0); 767 aty_st_le32(DST_BRES_DEC, 0); 768 769 /* set brush color registers */ 770 aty_st_le32(DP_BRUSH_FRGD_CLR, 0xFFFFFFFF); /* white */ 771 aty_st_le32(DP_BRUSH_BKGD_CLR, 0x00000000); /* black */ 772 773 /* set source color registers */ 774 aty_st_le32(DP_SRC_FRGD_CLR, 0xFFFFFFFF); /* white */ 775 aty_st_le32(DP_SRC_BKGD_CLR, 0x00000000); /* black */ 776 777 /* default write mask */ 778 aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF); 779 780 /* Wait for all the writes to be completed before returning */ 781 wait_for_idle(par); 782 } 783 784 785 /* convert depth values to their register representation */ 786 static u32 depth_to_dst(u32 depth) 787 { 788 if (depth <= 8) 789 return DST_8BPP; 790 else if (depth <= 15) 791 return DST_15BPP; 792 else if (depth == 16) 793 return DST_16BPP; 794 else if (depth <= 24) 795 return DST_24BPP; 796 else if (depth <= 32) 797 return DST_32BPP; 798 799 return -EINVAL; 800 } 801 802 /* 803 * PLL informations retreival 804 */ 805 806 807 #ifndef __sparc__ 808 static void __iomem *aty128_map_ROM(const struct aty128fb_par *par, 809 struct pci_dev *dev) 810 { 811 u16 dptr; 812 u8 rom_type; 813 void __iomem *bios; 814 size_t rom_size; 815 816 /* Fix from ATI for problem with Rage128 hardware not leaving ROM enabled */ 817 unsigned int temp; 818 temp = aty_ld_le32(RAGE128_MPP_TB_CONFIG); 819 temp &= 0x00ffffffu; 820 temp |= 0x04 << 24; 821 aty_st_le32(RAGE128_MPP_TB_CONFIG, temp); 822 temp = aty_ld_le32(RAGE128_MPP_TB_CONFIG); 823 824 bios = pci_map_rom(dev, &rom_size); 825 826 if (!bios) { 827 printk(KERN_ERR "aty128fb: ROM failed to map\n"); 828 return NULL; 829 } 830 831 /* Very simple test to make sure it appeared */ 832 if (BIOS_IN16(0) != 0xaa55) { 833 printk(KERN_DEBUG "aty128fb: Invalid ROM signature %x should " 834 " be 0xaa55\n", BIOS_IN16(0)); 835 goto failed; 836 } 837 838 /* Look for the PCI data to check the ROM type */ 839 dptr = BIOS_IN16(0x18); 840 841 /* Check the PCI data signature. If it's wrong, we still assume a normal 842 * x86 ROM for now, until I've verified this works everywhere. 843 * The goal here is more to phase out Open Firmware images. 844 * 845 * Currently, we only look at the first PCI data, we could iteratre and 846 * deal with them all, and we should use fb_bios_start relative to start 847 * of image and not relative start of ROM, but so far, I never found a 848 * dual-image ATI card. 849 * 850 * typedef struct { 851 * u32 signature; + 0x00 852 * u16 vendor; + 0x04 853 * u16 device; + 0x06 854 * u16 reserved_1; + 0x08 855 * u16 dlen; + 0x0a 856 * u8 drevision; + 0x0c 857 * u8 class_hi; + 0x0d 858 * u16 class_lo; + 0x0e 859 * u16 ilen; + 0x10 860 * u16 irevision; + 0x12 861 * u8 type; + 0x14 862 * u8 indicator; + 0x15 863 * u16 reserved_2; + 0x16 864 * } pci_data_t; 865 */ 866 if (BIOS_IN32(dptr) != (('R' << 24) | ('I' << 16) | ('C' << 8) | 'P')) { 867 printk(KERN_WARNING "aty128fb: PCI DATA signature in ROM incorrect: %08x\n", 868 BIOS_IN32(dptr)); 869 goto anyway; 870 } 871 rom_type = BIOS_IN8(dptr + 0x14); 872 switch(rom_type) { 873 case 0: 874 printk(KERN_INFO "aty128fb: Found Intel x86 BIOS ROM Image\n"); 875 break; 876 case 1: 877 printk(KERN_INFO "aty128fb: Found Open Firmware ROM Image\n"); 878 goto failed; 879 case 2: 880 printk(KERN_INFO "aty128fb: Found HP PA-RISC ROM Image\n"); 881 goto failed; 882 default: 883 printk(KERN_INFO "aty128fb: Found unknown type %d ROM Image\n", 884 rom_type); 885 goto failed; 886 } 887 anyway: 888 return bios; 889 890 failed: 891 pci_unmap_rom(dev, bios); 892 return NULL; 893 } 894 895 static void aty128_get_pllinfo(struct aty128fb_par *par, 896 unsigned char __iomem *bios) 897 { 898 unsigned int bios_hdr; 899 unsigned int bios_pll; 900 901 bios_hdr = BIOS_IN16(0x48); 902 bios_pll = BIOS_IN16(bios_hdr + 0x30); 903 904 par->constants.ppll_max = BIOS_IN32(bios_pll + 0x16); 905 par->constants.ppll_min = BIOS_IN32(bios_pll + 0x12); 906 par->constants.xclk = BIOS_IN16(bios_pll + 0x08); 907 par->constants.ref_divider = BIOS_IN16(bios_pll + 0x10); 908 par->constants.ref_clk = BIOS_IN16(bios_pll + 0x0e); 909 910 DBG("ppll_max %d ppll_min %d xclk %d ref_divider %d ref clock %d\n", 911 par->constants.ppll_max, par->constants.ppll_min, 912 par->constants.xclk, par->constants.ref_divider, 913 par->constants.ref_clk); 914 915 } 916 917 #ifdef CONFIG_X86 918 static void __iomem *aty128_find_mem_vbios(struct aty128fb_par *par) 919 { 920 /* I simplified this code as we used to miss the signatures in 921 * a lot of case. It's now closer to XFree, we just don't check 922 * for signatures at all... Something better will have to be done 923 * if we end up having conflicts 924 */ 925 u32 segstart; 926 unsigned char __iomem *rom_base = NULL; 927 928 for (segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) { 929 rom_base = ioremap(segstart, 0x10000); 930 if (rom_base == NULL) 931 return NULL; 932 if (readb(rom_base) == 0x55 && readb(rom_base + 1) == 0xaa) 933 break; 934 iounmap(rom_base); 935 rom_base = NULL; 936 } 937 return rom_base; 938 } 939 #endif 940 #endif /* ndef(__sparc__) */ 941 942 /* fill in known card constants if pll_block is not available */ 943 static void aty128_timings(struct aty128fb_par *par) 944 { 945 #ifdef CONFIG_PPC 946 /* instead of a table lookup, assume OF has properly 947 * setup the PLL registers and use their values 948 * to set the XCLK values and reference divider values */ 949 950 u32 x_mpll_ref_fb_div; 951 u32 xclk_cntl; 952 u32 Nx, M; 953 static const unsigned int PostDivSet[] = { 0, 1, 2, 4, 8, 3, 6, 12 }; 954 #endif 955 956 if (!par->constants.ref_clk) 957 par->constants.ref_clk = 2950; 958 959 #ifdef CONFIG_PPC 960 x_mpll_ref_fb_div = aty_ld_pll(X_MPLL_REF_FB_DIV); 961 xclk_cntl = aty_ld_pll(XCLK_CNTL) & 0x7; 962 Nx = (x_mpll_ref_fb_div & 0x00ff00) >> 8; 963 M = x_mpll_ref_fb_div & 0x0000ff; 964 965 par->constants.xclk = round_div((2 * Nx * par->constants.ref_clk), 966 (M * PostDivSet[xclk_cntl])); 967 968 par->constants.ref_divider = 969 aty_ld_pll(PPLL_REF_DIV) & PPLL_REF_DIV_MASK; 970 #endif 971 972 if (!par->constants.ref_divider) { 973 par->constants.ref_divider = 0x3b; 974 975 aty_st_pll(X_MPLL_REF_FB_DIV, 0x004c4c1e); 976 aty_pll_writeupdate(par); 977 } 978 aty_st_pll(PPLL_REF_DIV, par->constants.ref_divider); 979 aty_pll_writeupdate(par); 980 981 /* from documentation */ 982 if (!par->constants.ppll_min) 983 par->constants.ppll_min = 12500; 984 if (!par->constants.ppll_max) 985 par->constants.ppll_max = 25000; /* 23000 on some cards? */ 986 if (!par->constants.xclk) 987 par->constants.xclk = 0x1d4d; /* same as mclk */ 988 989 par->constants.fifo_width = 128; 990 par->constants.fifo_depth = 32; 991 992 switch (aty_ld_le32(MEM_CNTL) & 0x3) { 993 case 0: 994 par->mem = &sdr_128; 995 break; 996 case 1: 997 par->mem = &sdr_sgram; 998 break; 999 case 2: 1000 par->mem = &ddr_sgram; 1001 break; 1002 default: 1003 par->mem = &sdr_sgram; 1004 } 1005 } 1006 1007 1008 1009 /* 1010 * CRTC programming 1011 */ 1012 1013 /* Program the CRTC registers */ 1014 static void aty128_set_crtc(const struct aty128_crtc *crtc, 1015 const struct aty128fb_par *par) 1016 { 1017 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl); 1018 aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_total); 1019 aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid); 1020 aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_total); 1021 aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid); 1022 aty_st_le32(CRTC_PITCH, crtc->pitch); 1023 aty_st_le32(CRTC_OFFSET, crtc->offset); 1024 aty_st_le32(CRTC_OFFSET_CNTL, crtc->offset_cntl); 1025 /* Disable ATOMIC updating. Is this the right place? */ 1026 aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~(0x00030000)); 1027 } 1028 1029 1030 static int aty128_var_to_crtc(const struct fb_var_screeninfo *var, 1031 struct aty128_crtc *crtc, 1032 const struct aty128fb_par *par) 1033 { 1034 u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp, dst; 1035 u32 left, right, upper, lower, hslen, vslen, sync, vmode; 1036 u32 h_total, h_disp, h_sync_strt, h_sync_wid, h_sync_pol; 1037 u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync; 1038 u32 depth, bytpp; 1039 u8 mode_bytpp[7] = { 0, 0, 1, 2, 2, 3, 4 }; 1040 1041 /* input */ 1042 xres = var->xres; 1043 yres = var->yres; 1044 vxres = var->xres_virtual; 1045 vyres = var->yres_virtual; 1046 xoffset = var->xoffset; 1047 yoffset = var->yoffset; 1048 bpp = var->bits_per_pixel; 1049 left = var->left_margin; 1050 right = var->right_margin; 1051 upper = var->upper_margin; 1052 lower = var->lower_margin; 1053 hslen = var->hsync_len; 1054 vslen = var->vsync_len; 1055 sync = var->sync; 1056 vmode = var->vmode; 1057 1058 if (bpp != 16) 1059 depth = bpp; 1060 else 1061 depth = (var->green.length == 6) ? 16 : 15; 1062 1063 /* check for mode eligibility 1064 * accept only non interlaced modes */ 1065 if ((vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) 1066 return -EINVAL; 1067 1068 /* convert (and round up) and validate */ 1069 xres = (xres + 7) & ~7; 1070 xoffset = (xoffset + 7) & ~7; 1071 1072 if (vxres < xres + xoffset) 1073 vxres = xres + xoffset; 1074 1075 if (vyres < yres + yoffset) 1076 vyres = yres + yoffset; 1077 1078 /* convert depth into ATI register depth */ 1079 dst = depth_to_dst(depth); 1080 1081 if (dst == -EINVAL) { 1082 printk(KERN_ERR "aty128fb: Invalid depth or RGBA\n"); 1083 return -EINVAL; 1084 } 1085 1086 /* convert register depth to bytes per pixel */ 1087 bytpp = mode_bytpp[dst]; 1088 1089 /* make sure there is enough video ram for the mode */ 1090 if ((u32)(vxres * vyres * bytpp) > par->vram_size) { 1091 printk(KERN_ERR "aty128fb: Not enough memory for mode\n"); 1092 return -EINVAL; 1093 } 1094 1095 h_disp = (xres >> 3) - 1; 1096 h_total = (((xres + right + hslen + left) >> 3) - 1) & 0xFFFFL; 1097 1098 v_disp = yres - 1; 1099 v_total = (yres + upper + vslen + lower - 1) & 0xFFFFL; 1100 1101 /* check to make sure h_total and v_total are in range */ 1102 if (((h_total >> 3) - 1) > 0x1ff || (v_total - 1) > 0x7FF) { 1103 printk(KERN_ERR "aty128fb: invalid width ranges\n"); 1104 return -EINVAL; 1105 } 1106 1107 h_sync_wid = (hslen + 7) >> 3; 1108 if (h_sync_wid == 0) 1109 h_sync_wid = 1; 1110 else if (h_sync_wid > 0x3f) /* 0x3f = max hwidth */ 1111 h_sync_wid = 0x3f; 1112 1113 h_sync_strt = (h_disp << 3) + right; 1114 1115 v_sync_wid = vslen; 1116 if (v_sync_wid == 0) 1117 v_sync_wid = 1; 1118 else if (v_sync_wid > 0x1f) /* 0x1f = max vwidth */ 1119 v_sync_wid = 0x1f; 1120 1121 v_sync_strt = v_disp + lower; 1122 1123 h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1; 1124 v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1; 1125 1126 c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0; 1127 1128 crtc->gen_cntl = 0x3000000L | c_sync | (dst << 8); 1129 1130 crtc->h_total = h_total | (h_disp << 16); 1131 crtc->v_total = v_total | (v_disp << 16); 1132 1133 crtc->h_sync_strt_wid = h_sync_strt | (h_sync_wid << 16) | 1134 (h_sync_pol << 23); 1135 crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid << 16) | 1136 (v_sync_pol << 23); 1137 1138 crtc->pitch = vxres >> 3; 1139 1140 crtc->offset = 0; 1141 1142 if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) 1143 crtc->offset_cntl = 0x00010000; 1144 else 1145 crtc->offset_cntl = 0; 1146 1147 crtc->vxres = vxres; 1148 crtc->vyres = vyres; 1149 crtc->xoffset = xoffset; 1150 crtc->yoffset = yoffset; 1151 crtc->depth = depth; 1152 crtc->bpp = bpp; 1153 1154 return 0; 1155 } 1156 1157 1158 static int aty128_pix_width_to_var(int pix_width, struct fb_var_screeninfo *var) 1159 { 1160 1161 /* fill in pixel info */ 1162 var->red.msb_right = 0; 1163 var->green.msb_right = 0; 1164 var->blue.offset = 0; 1165 var->blue.msb_right = 0; 1166 var->transp.offset = 0; 1167 var->transp.length = 0; 1168 var->transp.msb_right = 0; 1169 switch (pix_width) { 1170 case CRTC_PIX_WIDTH_8BPP: 1171 var->bits_per_pixel = 8; 1172 var->red.offset = 0; 1173 var->red.length = 8; 1174 var->green.offset = 0; 1175 var->green.length = 8; 1176 var->blue.length = 8; 1177 break; 1178 case CRTC_PIX_WIDTH_15BPP: 1179 var->bits_per_pixel = 16; 1180 var->red.offset = 10; 1181 var->red.length = 5; 1182 var->green.offset = 5; 1183 var->green.length = 5; 1184 var->blue.length = 5; 1185 break; 1186 case CRTC_PIX_WIDTH_16BPP: 1187 var->bits_per_pixel = 16; 1188 var->red.offset = 11; 1189 var->red.length = 5; 1190 var->green.offset = 5; 1191 var->green.length = 6; 1192 var->blue.length = 5; 1193 break; 1194 case CRTC_PIX_WIDTH_24BPP: 1195 var->bits_per_pixel = 24; 1196 var->red.offset = 16; 1197 var->red.length = 8; 1198 var->green.offset = 8; 1199 var->green.length = 8; 1200 var->blue.length = 8; 1201 break; 1202 case CRTC_PIX_WIDTH_32BPP: 1203 var->bits_per_pixel = 32; 1204 var->red.offset = 16; 1205 var->red.length = 8; 1206 var->green.offset = 8; 1207 var->green.length = 8; 1208 var->blue.length = 8; 1209 var->transp.offset = 24; 1210 var->transp.length = 8; 1211 break; 1212 default: 1213 printk(KERN_ERR "aty128fb: Invalid pixel width\n"); 1214 return -EINVAL; 1215 } 1216 1217 return 0; 1218 } 1219 1220 1221 static int aty128_crtc_to_var(const struct aty128_crtc *crtc, 1222 struct fb_var_screeninfo *var) 1223 { 1224 u32 xres, yres, left, right, upper, lower, hslen, vslen, sync; 1225 u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid, h_sync_pol; 1226 u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync; 1227 u32 pix_width; 1228 1229 /* fun with masking */ 1230 h_total = crtc->h_total & 0x1ff; 1231 h_disp = (crtc->h_total >> 16) & 0xff; 1232 h_sync_strt = (crtc->h_sync_strt_wid >> 3) & 0x1ff; 1233 h_sync_dly = crtc->h_sync_strt_wid & 0x7; 1234 h_sync_wid = (crtc->h_sync_strt_wid >> 16) & 0x3f; 1235 h_sync_pol = (crtc->h_sync_strt_wid >> 23) & 0x1; 1236 v_total = crtc->v_total & 0x7ff; 1237 v_disp = (crtc->v_total >> 16) & 0x7ff; 1238 v_sync_strt = crtc->v_sync_strt_wid & 0x7ff; 1239 v_sync_wid = (crtc->v_sync_strt_wid >> 16) & 0x1f; 1240 v_sync_pol = (crtc->v_sync_strt_wid >> 23) & 0x1; 1241 c_sync = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0; 1242 pix_width = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK; 1243 1244 /* do conversions */ 1245 xres = (h_disp + 1) << 3; 1246 yres = v_disp + 1; 1247 left = ((h_total - h_sync_strt - h_sync_wid) << 3) - h_sync_dly; 1248 right = ((h_sync_strt - h_disp) << 3) + h_sync_dly; 1249 hslen = h_sync_wid << 3; 1250 upper = v_total - v_sync_strt - v_sync_wid; 1251 lower = v_sync_strt - v_disp; 1252 vslen = v_sync_wid; 1253 sync = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) | 1254 (v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) | 1255 (c_sync ? FB_SYNC_COMP_HIGH_ACT : 0); 1256 1257 aty128_pix_width_to_var(pix_width, var); 1258 1259 var->xres = xres; 1260 var->yres = yres; 1261 var->xres_virtual = crtc->vxres; 1262 var->yres_virtual = crtc->vyres; 1263 var->xoffset = crtc->xoffset; 1264 var->yoffset = crtc->yoffset; 1265 var->left_margin = left; 1266 var->right_margin = right; 1267 var->upper_margin = upper; 1268 var->lower_margin = lower; 1269 var->hsync_len = hslen; 1270 var->vsync_len = vslen; 1271 var->sync = sync; 1272 var->vmode = FB_VMODE_NONINTERLACED; 1273 1274 return 0; 1275 } 1276 1277 static void aty128_set_crt_enable(struct aty128fb_par *par, int on) 1278 { 1279 if (on) { 1280 aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) | 1281 CRT_CRTC_ON); 1282 aty_st_le32(DAC_CNTL, (aty_ld_le32(DAC_CNTL) | 1283 DAC_PALETTE2_SNOOP_EN)); 1284 } else 1285 aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) & 1286 ~CRT_CRTC_ON); 1287 } 1288 1289 static void aty128_set_lcd_enable(struct aty128fb_par *par, int on) 1290 { 1291 u32 reg; 1292 #ifdef CONFIG_FB_ATY128_BACKLIGHT 1293 struct fb_info *info = pci_get_drvdata(par->pdev); 1294 #endif 1295 1296 if (on) { 1297 reg = aty_ld_le32(LVDS_GEN_CNTL); 1298 reg |= LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION; 1299 reg &= ~LVDS_DISPLAY_DIS; 1300 aty_st_le32(LVDS_GEN_CNTL, reg); 1301 #ifdef CONFIG_FB_ATY128_BACKLIGHT 1302 aty128_bl_set_power(info, FB_BLANK_UNBLANK); 1303 #endif 1304 } else { 1305 #ifdef CONFIG_FB_ATY128_BACKLIGHT 1306 aty128_bl_set_power(info, FB_BLANK_POWERDOWN); 1307 #endif 1308 reg = aty_ld_le32(LVDS_GEN_CNTL); 1309 reg |= LVDS_DISPLAY_DIS; 1310 aty_st_le32(LVDS_GEN_CNTL, reg); 1311 mdelay(100); 1312 reg &= ~(LVDS_ON /*| LVDS_EN*/); 1313 aty_st_le32(LVDS_GEN_CNTL, reg); 1314 } 1315 } 1316 1317 static void aty128_set_pll(struct aty128_pll *pll, 1318 const struct aty128fb_par *par) 1319 { 1320 u32 div3; 1321 1322 /* register values for post dividers */ 1323 static const unsigned char post_conv[] = { 1324 2, 0, 1, 4, 2, 2, 6, 2, 3, 2, 2, 2, 7 1325 }; 1326 1327 /* select PPLL_DIV_3 */ 1328 aty_st_le32(CLOCK_CNTL_INDEX, aty_ld_le32(CLOCK_CNTL_INDEX) | (3 << 8)); 1329 1330 /* reset PLL */ 1331 aty_st_pll(PPLL_CNTL, 1332 aty_ld_pll(PPLL_CNTL) | PPLL_RESET | PPLL_ATOMIC_UPDATE_EN); 1333 1334 /* write the reference divider */ 1335 aty_pll_wait_readupdate(par); 1336 aty_st_pll(PPLL_REF_DIV, par->constants.ref_divider & 0x3ff); 1337 aty_pll_writeupdate(par); 1338 1339 div3 = aty_ld_pll(PPLL_DIV_3); 1340 div3 &= ~PPLL_FB3_DIV_MASK; 1341 div3 |= pll->feedback_divider; 1342 div3 &= ~PPLL_POST3_DIV_MASK; 1343 div3 |= post_conv[pll->post_divider] << 16; 1344 1345 /* write feedback and post dividers */ 1346 aty_pll_wait_readupdate(par); 1347 aty_st_pll(PPLL_DIV_3, div3); 1348 aty_pll_writeupdate(par); 1349 1350 aty_pll_wait_readupdate(par); 1351 aty_st_pll(HTOTAL_CNTL, 0); /* no horiz crtc adjustment */ 1352 aty_pll_writeupdate(par); 1353 1354 /* clear the reset, just in case */ 1355 aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~PPLL_RESET); 1356 } 1357 1358 1359 static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, 1360 const struct aty128fb_par *par) 1361 { 1362 const struct aty128_constants c = par->constants; 1363 static const unsigned char post_dividers[] = { 1, 2, 4, 8, 3, 6, 12 }; 1364 u32 output_freq; 1365 u32 vclk; /* in .01 MHz */ 1366 int i = 0; 1367 u32 n, d; 1368 1369 vclk = 100000000 / period_in_ps; /* convert units to 10 kHz */ 1370 1371 /* adjust pixel clock if necessary */ 1372 if (vclk > c.ppll_max) 1373 vclk = c.ppll_max; 1374 if (vclk * 12 < c.ppll_min) 1375 vclk = c.ppll_min/12; 1376 1377 /* now, find an acceptable divider */ 1378 for (i = 0; i < ARRAY_SIZE(post_dividers); i++) { 1379 output_freq = post_dividers[i] * vclk; 1380 if (output_freq >= c.ppll_min && output_freq <= c.ppll_max) { 1381 pll->post_divider = post_dividers[i]; 1382 break; 1383 } 1384 } 1385 1386 if (i == ARRAY_SIZE(post_dividers)) 1387 return -EINVAL; 1388 1389 /* calculate feedback divider */ 1390 n = c.ref_divider * output_freq; 1391 d = c.ref_clk; 1392 1393 pll->feedback_divider = round_div(n, d); 1394 pll->vclk = vclk; 1395 1396 DBG("post %d feedback %d vlck %d output %d ref_divider %d " 1397 "vclk_per: %d\n", pll->post_divider, 1398 pll->feedback_divider, vclk, output_freq, 1399 c.ref_divider, period_in_ps); 1400 1401 return 0; 1402 } 1403 1404 1405 static int aty128_pll_to_var(const struct aty128_pll *pll, 1406 struct fb_var_screeninfo *var) 1407 { 1408 var->pixclock = 100000000 / pll->vclk; 1409 1410 return 0; 1411 } 1412 1413 1414 static void aty128_set_fifo(const struct aty128_ddafifo *dsp, 1415 const struct aty128fb_par *par) 1416 { 1417 aty_st_le32(DDA_CONFIG, dsp->dda_config); 1418 aty_st_le32(DDA_ON_OFF, dsp->dda_on_off); 1419 } 1420 1421 1422 static int aty128_ddafifo(struct aty128_ddafifo *dsp, 1423 const struct aty128_pll *pll, 1424 u32 depth, 1425 const struct aty128fb_par *par) 1426 { 1427 const struct aty128_meminfo *m = par->mem; 1428 u32 xclk = par->constants.xclk; 1429 u32 fifo_width = par->constants.fifo_width; 1430 u32 fifo_depth = par->constants.fifo_depth; 1431 s32 x, b, p, ron, roff; 1432 u32 n, d, bpp; 1433 1434 /* round up to multiple of 8 */ 1435 bpp = (depth+7) & ~7; 1436 1437 n = xclk * fifo_width; 1438 d = pll->vclk * bpp; 1439 x = round_div(n, d); 1440 1441 ron = 4 * m->MB + 1442 3 * ((m->Trcd - 2 > 0) ? m->Trcd - 2 : 0) + 1443 2 * m->Trp + 1444 m->Twr + 1445 m->CL + 1446 m->Tr2w + 1447 x; 1448 1449 DBG("x %x\n", x); 1450 1451 b = 0; 1452 while (x) { 1453 x >>= 1; 1454 b++; 1455 } 1456 p = b + 1; 1457 1458 ron <<= (11 - p); 1459 1460 n <<= (11 - p); 1461 x = round_div(n, d); 1462 roff = x * (fifo_depth - 4); 1463 1464 if ((ron + m->Rloop) >= roff) { 1465 printk(KERN_ERR "aty128fb: Mode out of range!\n"); 1466 return -EINVAL; 1467 } 1468 1469 DBG("p: %x rloop: %x x: %x ron: %x roff: %x\n", 1470 p, m->Rloop, x, ron, roff); 1471 1472 dsp->dda_config = p << 16 | m->Rloop << 20 | x; 1473 dsp->dda_on_off = ron << 16 | roff; 1474 1475 return 0; 1476 } 1477 1478 1479 /* 1480 * This actually sets the video mode. 1481 */ 1482 static int aty128fb_set_par(struct fb_info *info) 1483 { 1484 struct aty128fb_par *par = info->par; 1485 u32 config; 1486 int err; 1487 1488 if ((err = aty128_decode_var(&info->var, par)) != 0) 1489 return err; 1490 1491 if (par->blitter_may_be_busy) 1492 wait_for_idle(par); 1493 1494 /* clear all registers that may interfere with mode setting */ 1495 aty_st_le32(OVR_CLR, 0); 1496 aty_st_le32(OVR_WID_LEFT_RIGHT, 0); 1497 aty_st_le32(OVR_WID_TOP_BOTTOM, 0); 1498 aty_st_le32(OV0_SCALE_CNTL, 0); 1499 aty_st_le32(MPP_TB_CONFIG, 0); 1500 aty_st_le32(MPP_GP_CONFIG, 0); 1501 aty_st_le32(SUBPIC_CNTL, 0); 1502 aty_st_le32(VIPH_CONTROL, 0); 1503 aty_st_le32(I2C_CNTL_1, 0); /* turn off i2c */ 1504 aty_st_le32(GEN_INT_CNTL, 0); /* turn off interrupts */ 1505 aty_st_le32(CAP0_TRIG_CNTL, 0); 1506 aty_st_le32(CAP1_TRIG_CNTL, 0); 1507 1508 aty_st_8(CRTC_EXT_CNTL + 1, 4); /* turn video off */ 1509 1510 aty128_set_crtc(&par->crtc, par); 1511 aty128_set_pll(&par->pll, par); 1512 aty128_set_fifo(&par->fifo_reg, par); 1513 1514 config = aty_ld_le32(CNFG_CNTL) & ~3; 1515 1516 #if defined(__BIG_ENDIAN) 1517 if (par->crtc.bpp == 32) 1518 config |= 2; /* make aperture do 32 bit swapping */ 1519 else if (par->crtc.bpp == 16) 1520 config |= 1; /* make aperture do 16 bit swapping */ 1521 #endif 1522 1523 aty_st_le32(CNFG_CNTL, config); 1524 aty_st_8(CRTC_EXT_CNTL + 1, 0); /* turn the video back on */ 1525 1526 info->fix.line_length = (par->crtc.vxres * par->crtc.bpp) >> 3; 1527 info->fix.visual = par->crtc.bpp == 8 ? FB_VISUAL_PSEUDOCOLOR 1528 : FB_VISUAL_DIRECTCOLOR; 1529 1530 if (par->chip_gen == rage_M3) { 1531 aty128_set_crt_enable(par, par->crt_on); 1532 aty128_set_lcd_enable(par, par->lcd_on); 1533 } 1534 if (par->accel_flags & FB_ACCELF_TEXT) 1535 aty128_init_engine(par); 1536 1537 #ifdef CONFIG_BOOTX_TEXT 1538 btext_update_display(info->fix.smem_start, 1539 (((par->crtc.h_total>>16) & 0xff)+1)*8, 1540 ((par->crtc.v_total>>16) & 0x7ff)+1, 1541 par->crtc.bpp, 1542 par->crtc.vxres*par->crtc.bpp/8); 1543 #endif /* CONFIG_BOOTX_TEXT */ 1544 1545 return 0; 1546 } 1547 1548 /* 1549 * encode/decode the User Defined Part of the Display 1550 */ 1551 1552 static int aty128_decode_var(struct fb_var_screeninfo *var, 1553 struct aty128fb_par *par) 1554 { 1555 int err; 1556 struct aty128_crtc crtc; 1557 struct aty128_pll pll; 1558 struct aty128_ddafifo fifo_reg; 1559 1560 if ((err = aty128_var_to_crtc(var, &crtc, par))) 1561 return err; 1562 1563 if ((err = aty128_var_to_pll(var->pixclock, &pll, par))) 1564 return err; 1565 1566 if ((err = aty128_ddafifo(&fifo_reg, &pll, crtc.depth, par))) 1567 return err; 1568 1569 par->crtc = crtc; 1570 par->pll = pll; 1571 par->fifo_reg = fifo_reg; 1572 par->accel_flags = var->accel_flags; 1573 1574 return 0; 1575 } 1576 1577 1578 static int aty128_encode_var(struct fb_var_screeninfo *var, 1579 const struct aty128fb_par *par) 1580 { 1581 int err; 1582 1583 if ((err = aty128_crtc_to_var(&par->crtc, var))) 1584 return err; 1585 1586 if ((err = aty128_pll_to_var(&par->pll, var))) 1587 return err; 1588 1589 var->nonstd = 0; 1590 var->activate = 0; 1591 1592 var->height = -1; 1593 var->width = -1; 1594 var->accel_flags = par->accel_flags; 1595 1596 return 0; 1597 } 1598 1599 1600 static int aty128fb_check_var(struct fb_var_screeninfo *var, 1601 struct fb_info *info) 1602 { 1603 struct aty128fb_par par; 1604 int err; 1605 1606 par = *(struct aty128fb_par *)info->par; 1607 if ((err = aty128_decode_var(var, &par)) != 0) 1608 return err; 1609 aty128_encode_var(var, &par); 1610 return 0; 1611 } 1612 1613 1614 /* 1615 * Pan or Wrap the Display 1616 */ 1617 static int aty128fb_pan_display(struct fb_var_screeninfo *var, 1618 struct fb_info *fb) 1619 { 1620 struct aty128fb_par *par = fb->par; 1621 u32 xoffset, yoffset; 1622 u32 offset; 1623 u32 xres, yres; 1624 1625 xres = (((par->crtc.h_total >> 16) & 0xff) + 1) << 3; 1626 yres = ((par->crtc.v_total >> 16) & 0x7ff) + 1; 1627 1628 xoffset = (var->xoffset +7) & ~7; 1629 yoffset = var->yoffset; 1630 1631 if (xoffset+xres > par->crtc.vxres || yoffset+yres > par->crtc.vyres) 1632 return -EINVAL; 1633 1634 par->crtc.xoffset = xoffset; 1635 par->crtc.yoffset = yoffset; 1636 1637 offset = ((yoffset * par->crtc.vxres + xoffset) * (par->crtc.bpp >> 3)) 1638 & ~7; 1639 1640 if (par->crtc.bpp == 24) 1641 offset += 8 * (offset % 3); /* Must be multiple of 8 and 3 */ 1642 1643 aty_st_le32(CRTC_OFFSET, offset); 1644 1645 return 0; 1646 } 1647 1648 1649 /* 1650 * Helper function to store a single palette register 1651 */ 1652 static void aty128_st_pal(u_int regno, u_int red, u_int green, u_int blue, 1653 struct aty128fb_par *par) 1654 { 1655 if (par->chip_gen == rage_M3) { 1656 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & 1657 ~DAC_PALETTE_ACCESS_CNTL); 1658 } 1659 1660 aty_st_8(PALETTE_INDEX, regno); 1661 aty_st_le32(PALETTE_DATA, (red<<16)|(green<<8)|blue); 1662 } 1663 1664 static int aty128fb_sync(struct fb_info *info) 1665 { 1666 struct aty128fb_par *par = info->par; 1667 1668 if (par->blitter_may_be_busy) 1669 wait_for_idle(par); 1670 return 0; 1671 } 1672 1673 #ifndef MODULE 1674 static int aty128fb_setup(char *options) 1675 { 1676 char *this_opt; 1677 1678 if (!options || !*options) 1679 return 0; 1680 1681 while ((this_opt = strsep(&options, ",")) != NULL) { 1682 if (!strncmp(this_opt, "lcd:", 4)) { 1683 default_lcd_on = simple_strtoul(this_opt+4, NULL, 0); 1684 continue; 1685 } else if (!strncmp(this_opt, "crt:", 4)) { 1686 default_crt_on = simple_strtoul(this_opt+4, NULL, 0); 1687 continue; 1688 } else if (!strncmp(this_opt, "backlight:", 10)) { 1689 #ifdef CONFIG_FB_ATY128_BACKLIGHT 1690 backlight = simple_strtoul(this_opt+10, NULL, 0); 1691 #endif 1692 continue; 1693 } 1694 if(!strncmp(this_opt, "nomtrr", 6)) { 1695 mtrr = false; 1696 continue; 1697 } 1698 #ifdef CONFIG_PPC_PMAC 1699 /* vmode and cmode deprecated */ 1700 if (!strncmp(this_opt, "vmode:", 6)) { 1701 unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0); 1702 if (vmode > 0 && vmode <= VMODE_MAX) 1703 default_vmode = vmode; 1704 continue; 1705 } else if (!strncmp(this_opt, "cmode:", 6)) { 1706 unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0); 1707 switch (cmode) { 1708 case 0: 1709 case 8: 1710 default_cmode = CMODE_8; 1711 break; 1712 case 15: 1713 case 16: 1714 default_cmode = CMODE_16; 1715 break; 1716 case 24: 1717 case 32: 1718 default_cmode = CMODE_32; 1719 break; 1720 } 1721 continue; 1722 } 1723 #endif /* CONFIG_PPC_PMAC */ 1724 mode_option = this_opt; 1725 } 1726 return 0; 1727 } 1728 #endif /* MODULE */ 1729 1730 /* Backlight */ 1731 #ifdef CONFIG_FB_ATY128_BACKLIGHT 1732 #define MAX_LEVEL 0xFF 1733 1734 static int aty128_bl_get_level_brightness(struct aty128fb_par *par, 1735 int level) 1736 { 1737 struct fb_info *info = pci_get_drvdata(par->pdev); 1738 int atylevel; 1739 1740 /* Get and convert the value */ 1741 /* No locking of bl_curve since we read a single value */ 1742 atylevel = MAX_LEVEL - 1743 (info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_LEVEL); 1744 1745 if (atylevel < 0) 1746 atylevel = 0; 1747 else if (atylevel > MAX_LEVEL) 1748 atylevel = MAX_LEVEL; 1749 1750 return atylevel; 1751 } 1752 1753 /* We turn off the LCD completely instead of just dimming the backlight. 1754 * This provides greater power saving and the display is useless without 1755 * backlight anyway 1756 */ 1757 #define BACKLIGHT_LVDS_OFF 1758 /* That one prevents proper CRT output with LCD off */ 1759 #undef BACKLIGHT_DAC_OFF 1760 1761 static int aty128_bl_update_status(struct backlight_device *bd) 1762 { 1763 struct aty128fb_par *par = bl_get_data(bd); 1764 unsigned int reg = aty_ld_le32(LVDS_GEN_CNTL); 1765 int level; 1766 1767 if (!par->lcd_on) 1768 level = 0; 1769 else 1770 level = backlight_get_brightness(bd); 1771 1772 reg |= LVDS_BL_MOD_EN | LVDS_BLON; 1773 if (level > 0) { 1774 reg |= LVDS_DIGION; 1775 if (!(reg & LVDS_ON)) { 1776 reg &= ~LVDS_BLON; 1777 aty_st_le32(LVDS_GEN_CNTL, reg); 1778 aty_ld_le32(LVDS_GEN_CNTL); 1779 mdelay(10); 1780 reg |= LVDS_BLON; 1781 aty_st_le32(LVDS_GEN_CNTL, reg); 1782 } 1783 reg &= ~LVDS_BL_MOD_LEVEL_MASK; 1784 reg |= (aty128_bl_get_level_brightness(par, level) << 1785 LVDS_BL_MOD_LEVEL_SHIFT); 1786 #ifdef BACKLIGHT_LVDS_OFF 1787 reg |= LVDS_ON | LVDS_EN; 1788 reg &= ~LVDS_DISPLAY_DIS; 1789 #endif 1790 aty_st_le32(LVDS_GEN_CNTL, reg); 1791 #ifdef BACKLIGHT_DAC_OFF 1792 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & (~DAC_PDWN)); 1793 #endif 1794 } else { 1795 reg &= ~LVDS_BL_MOD_LEVEL_MASK; 1796 reg |= (aty128_bl_get_level_brightness(par, 0) << 1797 LVDS_BL_MOD_LEVEL_SHIFT); 1798 #ifdef BACKLIGHT_LVDS_OFF 1799 reg |= LVDS_DISPLAY_DIS; 1800 aty_st_le32(LVDS_GEN_CNTL, reg); 1801 aty_ld_le32(LVDS_GEN_CNTL); 1802 udelay(10); 1803 reg &= ~(LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION); 1804 #endif 1805 aty_st_le32(LVDS_GEN_CNTL, reg); 1806 #ifdef BACKLIGHT_DAC_OFF 1807 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PDWN); 1808 #endif 1809 } 1810 1811 return 0; 1812 } 1813 1814 static const struct backlight_ops aty128_bl_data = { 1815 .update_status = aty128_bl_update_status, 1816 }; 1817 1818 static void aty128_bl_set_power(struct fb_info *info, int power) 1819 { 1820 if (info->bl_dev) { 1821 info->bl_dev->props.power = power; 1822 backlight_update_status(info->bl_dev); 1823 } 1824 } 1825 1826 static void aty128_bl_init(struct aty128fb_par *par) 1827 { 1828 struct backlight_properties props; 1829 struct fb_info *info = pci_get_drvdata(par->pdev); 1830 struct backlight_device *bd; 1831 char name[12]; 1832 1833 /* Could be extended to Rage128Pro LVDS output too */ 1834 if (par->chip_gen != rage_M3) 1835 return; 1836 1837 #ifdef CONFIG_PMAC_BACKLIGHT 1838 if (!pmac_has_backlight_type("ati")) 1839 return; 1840 #endif 1841 1842 snprintf(name, sizeof(name), "aty128bl%d", info->node); 1843 1844 memset(&props, 0, sizeof(struct backlight_properties)); 1845 props.type = BACKLIGHT_RAW; 1846 props.max_brightness = FB_BACKLIGHT_LEVELS - 1; 1847 bd = backlight_device_register(name, info->device, par, &aty128_bl_data, 1848 &props); 1849 if (IS_ERR(bd)) { 1850 info->bl_dev = NULL; 1851 printk(KERN_WARNING "aty128: Backlight registration failed\n"); 1852 goto error; 1853 } 1854 1855 info->bl_dev = bd; 1856 fb_bl_default_curve(info, 0, 1857 63 * FB_BACKLIGHT_MAX / MAX_LEVEL, 1858 219 * FB_BACKLIGHT_MAX / MAX_LEVEL); 1859 1860 bd->props.brightness = bd->props.max_brightness; 1861 bd->props.power = FB_BLANK_UNBLANK; 1862 backlight_update_status(bd); 1863 1864 printk("aty128: Backlight initialized (%s)\n", name); 1865 1866 return; 1867 1868 error: 1869 return; 1870 } 1871 1872 static void aty128_bl_exit(struct backlight_device *bd) 1873 { 1874 backlight_device_unregister(bd); 1875 printk("aty128: Backlight unloaded\n"); 1876 } 1877 #endif /* CONFIG_FB_ATY128_BACKLIGHT */ 1878 1879 /* 1880 * Initialisation 1881 */ 1882 1883 #ifdef CONFIG_PPC_PMAC__disabled 1884 static void aty128_early_resume(void *data) 1885 { 1886 struct aty128fb_par *par = data; 1887 1888 if (!console_trylock()) 1889 return; 1890 pci_restore_state(par->pdev); 1891 aty128_do_resume(par->pdev); 1892 console_unlock(); 1893 } 1894 #endif /* CONFIG_PPC_PMAC */ 1895 1896 static int aty128_init(struct pci_dev *pdev, const struct pci_device_id *ent) 1897 { 1898 struct fb_info *info = pci_get_drvdata(pdev); 1899 struct aty128fb_par *par = info->par; 1900 struct fb_var_screeninfo var; 1901 char video_card[50]; 1902 u8 chip_rev; 1903 u32 dac; 1904 1905 /* Get the chip revision */ 1906 chip_rev = (aty_ld_le32(CNFG_CNTL) >> 16) & 0x1F; 1907 1908 strcpy(video_card, "Rage128 XX "); 1909 video_card[8] = ent->device >> 8; 1910 video_card[9] = ent->device & 0xFF; 1911 1912 /* range check to make sure */ 1913 if (ent->driver_data < ARRAY_SIZE(r128_family)) 1914 strlcat(video_card, r128_family[ent->driver_data], 1915 sizeof(video_card)); 1916 1917 printk(KERN_INFO "aty128fb: %s [chip rev 0x%x] ", video_card, chip_rev); 1918 1919 if (par->vram_size % (1024 * 1024) == 0) 1920 printk("%dM %s\n", par->vram_size / (1024*1024), par->mem->name); 1921 else 1922 printk("%dk %s\n", par->vram_size / 1024, par->mem->name); 1923 1924 par->chip_gen = ent->driver_data; 1925 1926 /* fill in info */ 1927 info->fbops = &aty128fb_ops; 1928 1929 par->lcd_on = default_lcd_on; 1930 par->crt_on = default_crt_on; 1931 1932 var = default_var; 1933 #ifdef CONFIG_PPC_PMAC 1934 if (machine_is(powermac)) { 1935 /* Indicate sleep capability */ 1936 if (par->chip_gen == rage_M3) { 1937 pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, NULL, 0, 1); 1938 #if 0 /* Disable the early video resume hack for now as it's causing problems, 1939 * among others we now rely on the PCI core restoring the config space 1940 * for us, which isn't the case with that hack, and that code path causes 1941 * various things to be called with interrupts off while they shouldn't. 1942 * I'm leaving the code in as it can be useful for debugging purposes 1943 */ 1944 pmac_set_early_video_resume(aty128_early_resume, par); 1945 #endif 1946 } 1947 1948 /* Find default mode */ 1949 if (mode_option) { 1950 if (!mac_find_mode(&var, info, mode_option, 8)) 1951 var = default_var; 1952 } else { 1953 if (default_vmode <= 0 || default_vmode > VMODE_MAX) 1954 default_vmode = VMODE_1024_768_60; 1955 1956 /* iMacs need that resolution 1957 * PowerMac2,1 first r128 iMacs 1958 * PowerMac2,2 summer 2000 iMacs 1959 * PowerMac4,1 january 2001 iMacs "flower power" 1960 */ 1961 if (of_machine_is_compatible("PowerMac2,1") || 1962 of_machine_is_compatible("PowerMac2,2") || 1963 of_machine_is_compatible("PowerMac4,1")) 1964 default_vmode = VMODE_1024_768_75; 1965 1966 /* iBook SE */ 1967 if (of_machine_is_compatible("PowerBook2,2")) 1968 default_vmode = VMODE_800_600_60; 1969 1970 /* PowerBook Firewire (Pismo), iBook Dual USB */ 1971 if (of_machine_is_compatible("PowerBook3,1") || 1972 of_machine_is_compatible("PowerBook4,1")) 1973 default_vmode = VMODE_1024_768_60; 1974 1975 /* PowerBook Titanium */ 1976 if (of_machine_is_compatible("PowerBook3,2")) 1977 default_vmode = VMODE_1152_768_60; 1978 1979 if (default_cmode > 16) 1980 default_cmode = CMODE_32; 1981 else if (default_cmode > 8) 1982 default_cmode = CMODE_16; 1983 else 1984 default_cmode = CMODE_8; 1985 1986 if (mac_vmode_to_var(default_vmode, default_cmode, &var)) 1987 var = default_var; 1988 } 1989 } else 1990 #endif /* CONFIG_PPC_PMAC */ 1991 { 1992 if (mode_option) 1993 if (fb_find_mode(&var, info, mode_option, NULL, 1994 0, &defaultmode, 8) == 0) 1995 var = default_var; 1996 } 1997 1998 var.accel_flags &= ~FB_ACCELF_TEXT; 1999 // var.accel_flags |= FB_ACCELF_TEXT;/* FIXME Will add accel later */ 2000 2001 if (aty128fb_check_var(&var, info)) { 2002 printk(KERN_ERR "aty128fb: Cannot set default mode.\n"); 2003 return 0; 2004 } 2005 2006 /* setup the DAC the way we like it */ 2007 dac = aty_ld_le32(DAC_CNTL); 2008 dac |= (DAC_8BIT_EN | DAC_RANGE_CNTL); 2009 dac |= DAC_MASK; 2010 if (par->chip_gen == rage_M3) 2011 dac |= DAC_PALETTE2_SNOOP_EN; 2012 aty_st_le32(DAC_CNTL, dac); 2013 2014 /* turn off bus mastering, just in case */ 2015 aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL) | BUS_MASTER_DIS); 2016 2017 info->var = var; 2018 fb_alloc_cmap(&info->cmap, 256, 0); 2019 2020 var.activate = FB_ACTIVATE_NOW; 2021 2022 aty128_init_engine(par); 2023 2024 par->pdev = pdev; 2025 par->asleep = 0; 2026 par->lock_blank = 0; 2027 2028 if (register_framebuffer(info) < 0) 2029 return 0; 2030 2031 #ifdef CONFIG_FB_ATY128_BACKLIGHT 2032 if (backlight) 2033 aty128_bl_init(par); 2034 #endif 2035 2036 fb_info(info, "%s frame buffer device on %s\n", 2037 info->fix.id, video_card); 2038 2039 return 1; /* success! */ 2040 } 2041 2042 #ifdef CONFIG_PCI 2043 /* register a card ++ajoshi */ 2044 static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 2045 { 2046 unsigned long fb_addr, reg_addr; 2047 struct aty128fb_par *par; 2048 struct fb_info *info; 2049 int err; 2050 #ifndef __sparc__ 2051 void __iomem *bios = NULL; 2052 #endif 2053 2054 err = aperture_remove_conflicting_pci_devices(pdev, "aty128fb"); 2055 if (err) 2056 return err; 2057 2058 /* Enable device in PCI config */ 2059 if ((err = pci_enable_device(pdev))) { 2060 printk(KERN_ERR "aty128fb: Cannot enable PCI device: %d\n", 2061 err); 2062 return -ENODEV; 2063 } 2064 2065 fb_addr = pci_resource_start(pdev, 0); 2066 if (!request_mem_region(fb_addr, pci_resource_len(pdev, 0), 2067 "aty128fb FB")) { 2068 printk(KERN_ERR "aty128fb: cannot reserve frame " 2069 "buffer memory\n"); 2070 return -ENODEV; 2071 } 2072 2073 reg_addr = pci_resource_start(pdev, 2); 2074 if (!request_mem_region(reg_addr, pci_resource_len(pdev, 2), 2075 "aty128fb MMIO")) { 2076 printk(KERN_ERR "aty128fb: cannot reserve MMIO region\n"); 2077 goto err_free_fb; 2078 } 2079 2080 /* We have the resources. Now virtualize them */ 2081 info = framebuffer_alloc(sizeof(struct aty128fb_par), &pdev->dev); 2082 if (!info) 2083 goto err_free_mmio; 2084 2085 par = info->par; 2086 2087 info->pseudo_palette = par->pseudo_palette; 2088 2089 /* Virtualize mmio region */ 2090 info->fix.mmio_start = reg_addr; 2091 par->regbase = pci_ioremap_bar(pdev, 2); 2092 if (!par->regbase) 2093 goto err_free_info; 2094 2095 /* Grab memory size from the card */ 2096 // How does this relate to the resource length from the PCI hardware? 2097 par->vram_size = aty_ld_le32(CNFG_MEMSIZE) & 0x03FFFFFF; 2098 2099 /* Virtualize the framebuffer */ 2100 info->screen_base = ioremap_wc(fb_addr, par->vram_size); 2101 if (!info->screen_base) 2102 goto err_unmap_out; 2103 2104 /* Set up info->fix */ 2105 info->fix = aty128fb_fix; 2106 info->fix.smem_start = fb_addr; 2107 info->fix.smem_len = par->vram_size; 2108 info->fix.mmio_start = reg_addr; 2109 2110 /* If we can't test scratch registers, something is seriously wrong */ 2111 if (!register_test(par)) { 2112 printk(KERN_ERR "aty128fb: Can't write to video register!\n"); 2113 goto err_out; 2114 } 2115 2116 #ifndef __sparc__ 2117 bios = aty128_map_ROM(par, pdev); 2118 #ifdef CONFIG_X86 2119 if (bios == NULL) 2120 bios = aty128_find_mem_vbios(par); 2121 #endif 2122 if (bios == NULL) 2123 printk(KERN_INFO "aty128fb: BIOS not located, guessing timings.\n"); 2124 else { 2125 printk(KERN_INFO "aty128fb: Rage128 BIOS located\n"); 2126 aty128_get_pllinfo(par, bios); 2127 pci_unmap_rom(pdev, bios); 2128 } 2129 #endif /* __sparc__ */ 2130 2131 aty128_timings(par); 2132 pci_set_drvdata(pdev, info); 2133 2134 if (!aty128_init(pdev, ent)) 2135 goto err_out; 2136 2137 if (mtrr) 2138 par->wc_cookie = arch_phys_wc_add(info->fix.smem_start, 2139 par->vram_size); 2140 return 0; 2141 2142 err_out: 2143 iounmap(info->screen_base); 2144 err_unmap_out: 2145 iounmap(par->regbase); 2146 err_free_info: 2147 framebuffer_release(info); 2148 err_free_mmio: 2149 release_mem_region(pci_resource_start(pdev, 2), 2150 pci_resource_len(pdev, 2)); 2151 err_free_fb: 2152 release_mem_region(pci_resource_start(pdev, 0), 2153 pci_resource_len(pdev, 0)); 2154 return -ENODEV; 2155 } 2156 2157 static void aty128_remove(struct pci_dev *pdev) 2158 { 2159 struct fb_info *info = pci_get_drvdata(pdev); 2160 struct aty128fb_par *par; 2161 2162 if (!info) 2163 return; 2164 2165 par = info->par; 2166 2167 #ifdef CONFIG_FB_ATY128_BACKLIGHT 2168 aty128_bl_exit(info->bl_dev); 2169 #endif 2170 2171 unregister_framebuffer(info); 2172 2173 arch_phys_wc_del(par->wc_cookie); 2174 iounmap(par->regbase); 2175 iounmap(info->screen_base); 2176 2177 release_mem_region(pci_resource_start(pdev, 0), 2178 pci_resource_len(pdev, 0)); 2179 release_mem_region(pci_resource_start(pdev, 2), 2180 pci_resource_len(pdev, 2)); 2181 framebuffer_release(info); 2182 } 2183 #endif /* CONFIG_PCI */ 2184 2185 2186 2187 /* 2188 * Blank the display. 2189 */ 2190 static int aty128fb_blank(int blank, struct fb_info *fb) 2191 { 2192 struct aty128fb_par *par = fb->par; 2193 u8 state; 2194 2195 if (par->lock_blank || par->asleep) 2196 return 0; 2197 2198 switch (blank) { 2199 case FB_BLANK_NORMAL: 2200 state = 4; 2201 break; 2202 case FB_BLANK_VSYNC_SUSPEND: 2203 state = 6; 2204 break; 2205 case FB_BLANK_HSYNC_SUSPEND: 2206 state = 5; 2207 break; 2208 case FB_BLANK_POWERDOWN: 2209 state = 7; 2210 break; 2211 case FB_BLANK_UNBLANK: 2212 default: 2213 state = 0; 2214 break; 2215 } 2216 aty_st_8(CRTC_EXT_CNTL+1, state); 2217 2218 if (par->chip_gen == rage_M3) { 2219 aty128_set_crt_enable(par, par->crt_on && !blank); 2220 aty128_set_lcd_enable(par, par->lcd_on && !blank); 2221 } 2222 2223 return 0; 2224 } 2225 2226 /* 2227 * Set a single color register. The values supplied are already 2228 * rounded down to the hardware's capabilities (according to the 2229 * entries in the var structure). Return != 0 for invalid regno. 2230 */ 2231 static int aty128fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, 2232 u_int transp, struct fb_info *info) 2233 { 2234 struct aty128fb_par *par = info->par; 2235 2236 if (regno > 255 2237 || (par->crtc.depth == 16 && regno > 63) 2238 || (par->crtc.depth == 15 && regno > 31)) 2239 return 1; 2240 2241 red >>= 8; 2242 green >>= 8; 2243 blue >>= 8; 2244 2245 if (regno < 16) { 2246 int i; 2247 u32 *pal = info->pseudo_palette; 2248 2249 switch (par->crtc.depth) { 2250 case 15: 2251 pal[regno] = (regno << 10) | (regno << 5) | regno; 2252 break; 2253 case 16: 2254 pal[regno] = (regno << 11) | (regno << 6) | regno; 2255 break; 2256 case 24: 2257 pal[regno] = (regno << 16) | (regno << 8) | regno; 2258 break; 2259 case 32: 2260 i = (regno << 8) | regno; 2261 pal[regno] = (i << 16) | i; 2262 break; 2263 } 2264 } 2265 2266 if (par->crtc.depth == 16 && regno > 0) { 2267 /* 2268 * With the 5-6-5 split of bits for RGB at 16 bits/pixel, we 2269 * have 32 slots for R and B values but 64 slots for G values. 2270 * Thus the R and B values go in one slot but the G value 2271 * goes in a different slot, and we have to avoid disturbing 2272 * the other fields in the slots we touch. 2273 */ 2274 par->green[regno] = green; 2275 if (regno < 32) { 2276 par->red[regno] = red; 2277 par->blue[regno] = blue; 2278 aty128_st_pal(regno * 8, red, par->green[regno*2], 2279 blue, par); 2280 } 2281 red = par->red[regno/2]; 2282 blue = par->blue[regno/2]; 2283 regno <<= 2; 2284 } else if (par->crtc.bpp == 16) 2285 regno <<= 3; 2286 aty128_st_pal(regno, red, green, blue, par); 2287 2288 return 0; 2289 } 2290 2291 #define ATY_MIRROR_LCD_ON 0x00000001 2292 #define ATY_MIRROR_CRT_ON 0x00000002 2293 2294 /* out param: u32* backlight value: 0 to 15 */ 2295 #define FBIO_ATY128_GET_MIRROR _IOR('@', 1, __u32) 2296 /* in param: u32* backlight value: 0 to 15 */ 2297 #define FBIO_ATY128_SET_MIRROR _IOW('@', 2, __u32) 2298 2299 static int aty128fb_ioctl(struct fb_info *info, u_int cmd, u_long arg) 2300 { 2301 struct aty128fb_par *par = info->par; 2302 u32 value; 2303 int rc; 2304 2305 switch (cmd) { 2306 case FBIO_ATY128_SET_MIRROR: 2307 if (par->chip_gen != rage_M3) 2308 return -EINVAL; 2309 rc = get_user(value, (__u32 __user *)arg); 2310 if (rc) 2311 return rc; 2312 par->lcd_on = (value & 0x01) != 0; 2313 par->crt_on = (value & 0x02) != 0; 2314 if (!par->crt_on && !par->lcd_on) 2315 par->lcd_on = 1; 2316 aty128_set_crt_enable(par, par->crt_on); 2317 aty128_set_lcd_enable(par, par->lcd_on); 2318 return 0; 2319 case FBIO_ATY128_GET_MIRROR: 2320 if (par->chip_gen != rage_M3) 2321 return -EINVAL; 2322 value = (par->crt_on << 1) | par->lcd_on; 2323 return put_user(value, (__u32 __user *)arg); 2324 } 2325 return -EINVAL; 2326 } 2327 2328 static void aty128_set_suspend(struct aty128fb_par *par, int suspend) 2329 { 2330 u32 pmgt; 2331 2332 if (!par->pdev->pm_cap) 2333 return; 2334 2335 /* Set the chip into the appropriate suspend mode (we use D2, 2336 * D3 would require a complete re-initialisation of the chip, 2337 * including PCI config registers, clocks, AGP configuration, ...) 2338 * 2339 * For resume, the core will have already brought us back to D0 2340 */ 2341 if (suspend) { 2342 /* Make sure CRTC2 is reset. Remove that the day we decide to 2343 * actually use CRTC2 and replace it with real code for disabling 2344 * the CRTC2 output during sleep 2345 */ 2346 aty_st_le32(CRTC2_GEN_CNTL, aty_ld_le32(CRTC2_GEN_CNTL) & 2347 ~(CRTC2_EN)); 2348 2349 /* Set the power management mode to be PCI based */ 2350 /* Use this magic value for now */ 2351 pmgt = 0x0c005407; 2352 aty_st_pll(POWER_MANAGEMENT, pmgt); 2353 (void)aty_ld_pll(POWER_MANAGEMENT); 2354 aty_st_le32(BUS_CNTL1, 0x00000010); 2355 aty_st_le32(MEM_POWER_MISC, 0x0c830000); 2356 msleep(100); 2357 } 2358 } 2359 2360 static int aty128_pci_suspend_late(struct device *dev, pm_message_t state) 2361 { 2362 struct pci_dev *pdev = to_pci_dev(dev); 2363 struct fb_info *info = pci_get_drvdata(pdev); 2364 struct aty128fb_par *par = info->par; 2365 2366 /* We don't do anything but D2, for now we return 0, but 2367 * we may want to change that. How do we know if the BIOS 2368 * can properly take care of D3 ? Also, with swsusp, we 2369 * know we'll be rebooted, ... 2370 */ 2371 #ifndef CONFIG_PPC_PMAC 2372 /* HACK ALERT ! Once I find a proper way to say to each driver 2373 * individually what will happen with it's PCI slot, I'll change 2374 * that. On laptops, the AGP slot is just unclocked, so D2 is 2375 * expected, while on desktops, the card is powered off 2376 */ 2377 return 0; 2378 #endif /* CONFIG_PPC_PMAC */ 2379 2380 if (state.event == pdev->dev.power.power_state.event) 2381 return 0; 2382 2383 printk(KERN_DEBUG "aty128fb: suspending...\n"); 2384 2385 console_lock(); 2386 2387 fb_set_suspend(info, 1); 2388 2389 /* Make sure engine is reset */ 2390 wait_for_idle(par); 2391 aty128_reset_engine(par); 2392 wait_for_idle(par); 2393 2394 /* Blank display and LCD */ 2395 aty128fb_blank(FB_BLANK_POWERDOWN, info); 2396 2397 /* Sleep */ 2398 par->asleep = 1; 2399 par->lock_blank = 1; 2400 2401 #ifdef CONFIG_PPC_PMAC 2402 /* On powermac, we have hooks to properly suspend/resume AGP now, 2403 * use them here. We'll ultimately need some generic support here, 2404 * but the generic code isn't quite ready for that yet 2405 */ 2406 pmac_suspend_agp_for_card(pdev); 2407 #endif /* CONFIG_PPC_PMAC */ 2408 2409 /* We need a way to make sure the fbdev layer will _not_ touch the 2410 * framebuffer before we put the chip to suspend state. On 2.4, I 2411 * used dummy fb ops, 2.5 need proper support for this at the 2412 * fbdev level 2413 */ 2414 if (state.event != PM_EVENT_ON) 2415 aty128_set_suspend(par, 1); 2416 2417 console_unlock(); 2418 2419 pdev->dev.power.power_state = state; 2420 2421 return 0; 2422 } 2423 2424 static int __maybe_unused aty128_pci_suspend(struct device *dev) 2425 { 2426 return aty128_pci_suspend_late(dev, PMSG_SUSPEND); 2427 } 2428 2429 static int __maybe_unused aty128_pci_hibernate(struct device *dev) 2430 { 2431 return aty128_pci_suspend_late(dev, PMSG_HIBERNATE); 2432 } 2433 2434 static int __maybe_unused aty128_pci_freeze(struct device *dev) 2435 { 2436 return aty128_pci_suspend_late(dev, PMSG_FREEZE); 2437 } 2438 2439 static int aty128_do_resume(struct pci_dev *pdev) 2440 { 2441 struct fb_info *info = pci_get_drvdata(pdev); 2442 struct aty128fb_par *par = info->par; 2443 2444 if (pdev->dev.power.power_state.event == PM_EVENT_ON) 2445 return 0; 2446 2447 /* PCI state will have been restored by the core, so 2448 * we should be in D0 now with our config space fully 2449 * restored 2450 */ 2451 2452 /* Wakeup chip */ 2453 aty128_set_suspend(par, 0); 2454 par->asleep = 0; 2455 2456 /* Restore display & engine */ 2457 aty128_reset_engine(par); 2458 wait_for_idle(par); 2459 aty128fb_set_par(info); 2460 fb_pan_display(info, &info->var); 2461 fb_set_cmap(&info->cmap, info); 2462 2463 /* Refresh */ 2464 fb_set_suspend(info, 0); 2465 2466 /* Unblank */ 2467 par->lock_blank = 0; 2468 aty128fb_blank(0, info); 2469 2470 #ifdef CONFIG_PPC_PMAC 2471 /* On powermac, we have hooks to properly suspend/resume AGP now, 2472 * use them here. We'll ultimately need some generic support here, 2473 * but the generic code isn't quite ready for that yet 2474 */ 2475 pmac_resume_agp_for_card(pdev); 2476 #endif /* CONFIG_PPC_PMAC */ 2477 2478 pdev->dev.power.power_state = PMSG_ON; 2479 2480 printk(KERN_DEBUG "aty128fb: resumed !\n"); 2481 2482 return 0; 2483 } 2484 2485 static int __maybe_unused aty128_pci_resume(struct device *dev) 2486 { 2487 int rc; 2488 2489 console_lock(); 2490 rc = aty128_do_resume(to_pci_dev(dev)); 2491 console_unlock(); 2492 2493 return rc; 2494 } 2495 2496 2497 static int aty128fb_init(void) 2498 { 2499 #ifndef MODULE 2500 char *option = NULL; 2501 #endif 2502 2503 if (fb_modesetting_disabled("aty128fb")) 2504 return -ENODEV; 2505 2506 #ifndef MODULE 2507 if (fb_get_options("aty128fb", &option)) 2508 return -ENODEV; 2509 aty128fb_setup(option); 2510 #endif 2511 2512 return pci_register_driver(&aty128fb_driver); 2513 } 2514 2515 static void __exit aty128fb_exit(void) 2516 { 2517 pci_unregister_driver(&aty128fb_driver); 2518 } 2519 2520 module_init(aty128fb_init); 2521 2522 module_exit(aty128fb_exit); 2523 2524 MODULE_AUTHOR("(c)1999-2003 Brad Douglas <brad@neruo.com>"); 2525 MODULE_DESCRIPTION("FBDev driver for ATI Rage128 / Pro cards"); 2526 MODULE_LICENSE("GPL"); 2527 module_param(mode_option, charp, 0); 2528 MODULE_PARM_DESC(mode_option, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); 2529 module_param_named(nomtrr, mtrr, invbool, 0); 2530 MODULE_PARM_DESC(nomtrr, "bool: Disable MTRR support (0 or 1=disabled) (default=0)"); 2531