aty128fb.c revision a5d8e2e73c7f1dcee485d55225628317d8d441c0
1/* $Id: aty128fb.c,v 1.1.1.1.36.1 1999/12/11 09:03:05 Exp $ 2 * linux/drivers/video/aty128fb.c -- Frame buffer device for ATI Rage128 3 * 4 * Copyright (C) 1999-2003, Brad Douglas <brad@neruo.com> 5 * Copyright (C) 1999, Anthony Tong <atong@uiuc.edu> 6 * 7 * Ani Joshi / Jeff Garzik 8 * - Code cleanup 9 * 10 * Michel Danzer <michdaen@iiic.ethz.ch> 11 * - 15/16 bit cleanup 12 * - fix panning 13 * 14 * Benjamin Herrenschmidt 15 * - pmac-specific PM stuff 16 * - various fixes & cleanups 17 * 18 * Andreas Hundt <andi@convergence.de> 19 * - FB_ACTIVATE fixes 20 * 21 * Paul Mackerras <paulus@samba.org> 22 * - Convert to new framebuffer API, 23 * fix colormap setting at 16 bits/pixel (565) 24 * 25 * Paul Mundt 26 * - PCI hotplug 27 * 28 * Jon Smirl <jonsmirl@yahoo.com> 29 * - PCI ID update 30 * - replace ROM BIOS search 31 * 32 * Based off of Geert's atyfb.c and vfb.c. 33 * 34 * TODO: 35 * - monitor sensing (DDC) 36 * - virtual display 37 * - other platform support (only ppc/x86 supported) 38 * - hardware cursor support 39 * 40 * Please cc: your patches to brad@neruo.com. 41 */ 42 43/* 44 * A special note of gratitude to ATI's devrel for providing documentation, 45 * example code and hardware. Thanks Nitya. -atong and brad 46 */ 47 48 49#include <linux/module.h> 50#include <linux/moduleparam.h> 51#include <linux/kernel.h> 52#include <linux/errno.h> 53#include <linux/string.h> 54#include <linux/mm.h> 55#include <linux/vmalloc.h> 56#include <linux/delay.h> 57#include <linux/interrupt.h> 58#include <linux/uaccess.h> 59#include <linux/fb.h> 60#include <linux/init.h> 61#include <linux/pci.h> 62#include <linux/ioport.h> 63#include <linux/console.h> 64#include <linux/backlight.h> 65#include <asm/io.h> 66 67#ifdef CONFIG_PPC_PMAC 68#include <asm/machdep.h> 69#include <asm/pmac_feature.h> 70#include <asm/prom.h> 71#include <asm/pci-bridge.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#ifdef CONFIG_MTRR 84#include <asm/mtrr.h> 85#endif 86 87#include <video/aty128.h> 88 89/* Debug flag */ 90#undef DEBUG 91 92#ifdef DEBUG 93#define DBG(fmt, args...) \ 94 printk(KERN_DEBUG "aty128fb: %s " fmt, __func__, ##args); 95#else 96#define DBG(fmt, args...) 97#endif 98 99#ifndef CONFIG_PPC_PMAC 100/* default mode */ 101static struct fb_var_screeninfo default_var = { 102 /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */ 103 640, 480, 640, 480, 0, 0, 8, 0, 104 {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 105 0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2, 106 0, FB_VMODE_NONINTERLACED 107}; 108 109#else /* CONFIG_PPC_PMAC */ 110/* default to 1024x768 at 75Hz on PPC - this will work 111 * on the iMac, the usual 640x480 @ 60Hz doesn't. */ 112static struct fb_var_screeninfo default_var = { 113 /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */ 114 1024, 768, 1024, 768, 0, 0, 8, 0, 115 {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 116 0, 0, -1, -1, 0, 12699, 160, 32, 28, 1, 96, 3, 117 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 118 FB_VMODE_NONINTERLACED 119}; 120#endif /* CONFIG_PPC_PMAC */ 121 122/* default modedb mode */ 123/* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */ 124static struct fb_videomode defaultmode = { 125 .refresh = 60, 126 .xres = 640, 127 .yres = 480, 128 .pixclock = 39722, 129 .left_margin = 48, 130 .right_margin = 16, 131 .upper_margin = 33, 132 .lower_margin = 10, 133 .hsync_len = 96, 134 .vsync_len = 2, 135 .sync = 0, 136 .vmode = FB_VMODE_NONINTERLACED 137}; 138 139/* Chip generations */ 140enum { 141 rage_128, 142 rage_128_pci, 143 rage_128_pro, 144 rage_128_pro_pci, 145 rage_M3, 146 rage_M3_pci, 147 rage_M4, 148 rage_128_ultra, 149}; 150 151/* Must match above enum */ 152static char * const r128_family[] = { 153 "AGP", 154 "PCI", 155 "PRO AGP", 156 "PRO PCI", 157 "M3 AGP", 158 "M3 PCI", 159 "M4 AGP", 160 "Ultra AGP", 161}; 162 163/* 164 * PCI driver prototypes 165 */ 166static int aty128_probe(struct pci_dev *pdev, 167 const struct pci_device_id *ent); 168static void aty128_remove(struct pci_dev *pdev); 169static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state); 170static int aty128_pci_resume(struct pci_dev *pdev); 171static int aty128_do_resume(struct pci_dev *pdev); 172 173/* supported Rage128 chipsets */ 174static struct pci_device_id aty128_pci_tbl[] = { 175 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LE, 176 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3_pci }, 177 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LF, 178 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3 }, 179 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_MF, 180 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M4 }, 181 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_ML, 182 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M4 }, 183 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PA, 184 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 185 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PB, 186 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 187 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PC, 188 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 189 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PD, 190 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, 191 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PE, 192 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 193 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PF, 194 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 195 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PG, 196 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 197 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PH, 198 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 199 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PI, 200 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 201 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PJ, 202 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 203 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PK, 204 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 205 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PL, 206 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 207 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PM, 208 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 209 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PN, 210 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 211 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PO, 212 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 213 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PP, 214 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, 215 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PQ, 216 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 217 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PR, 218 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, 219 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PS, 220 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 221 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PT, 222 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 223 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PU, 224 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 225 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PV, 226 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 227 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PW, 228 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 229 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PX, 230 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, 231 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RE, 232 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, 233 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RF, 234 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 235 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RG, 236 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 237 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RK, 238 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, 239 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RL, 240 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 241 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SE, 242 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 243 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SF, 244 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, 245 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SG, 246 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 247 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SH, 248 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 249 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SK, 250 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 251 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SL, 252 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 253 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SM, 254 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 255 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SN, 256 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, 257 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TF, 258 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 259 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TL, 260 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 261 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TR, 262 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 263 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TS, 264 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 265 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TT, 266 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 267 { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TU, 268 PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, 269 { 0, } 270}; 271 272MODULE_DEVICE_TABLE(pci, aty128_pci_tbl); 273 274static struct pci_driver aty128fb_driver = { 275 .name = "aty128fb", 276 .id_table = aty128_pci_tbl, 277 .probe = aty128_probe, 278 .remove = aty128_remove, 279 .suspend = aty128_pci_suspend, 280 .resume = aty128_pci_resume, 281}; 282 283/* packed BIOS settings */ 284#ifndef CONFIG_PPC 285typedef struct { 286 u8 clock_chip_type; 287 u8 struct_size; 288 u8 accelerator_entry; 289 u8 VGA_entry; 290 u16 VGA_table_offset; 291 u16 POST_table_offset; 292 u16 XCLK; 293 u16 MCLK; 294 u8 num_PLL_blocks; 295 u8 size_PLL_blocks; 296 u16 PCLK_ref_freq; 297 u16 PCLK_ref_divider; 298 u32 PCLK_min_freq; 299 u32 PCLK_max_freq; 300 u16 MCLK_ref_freq; 301 u16 MCLK_ref_divider; 302 u32 MCLK_min_freq; 303 u32 MCLK_max_freq; 304 u16 XCLK_ref_freq; 305 u16 XCLK_ref_divider; 306 u32 XCLK_min_freq; 307 u32 XCLK_max_freq; 308} __attribute__ ((packed)) PLL_BLOCK; 309#endif /* !CONFIG_PPC */ 310 311/* onboard memory information */ 312struct aty128_meminfo { 313 u8 ML; 314 u8 MB; 315 u8 Trcd; 316 u8 Trp; 317 u8 Twr; 318 u8 CL; 319 u8 Tr2w; 320 u8 LoopLatency; 321 u8 DspOn; 322 u8 Rloop; 323 const char *name; 324}; 325 326/* various memory configurations */ 327static const struct aty128_meminfo sdr_128 = 328 { 4, 4, 3, 3, 1, 3, 1, 16, 30, 16, "128-bit SDR SGRAM (1:1)" }; 329static const struct aty128_meminfo sdr_64 = 330 { 4, 8, 3, 3, 1, 3, 1, 17, 46, 17, "64-bit SDR SGRAM (1:1)" }; 331static const struct aty128_meminfo sdr_sgram = 332 { 4, 4, 1, 2, 1, 2, 1, 16, 24, 16, "64-bit SDR SGRAM (2:1)" }; 333static const struct aty128_meminfo ddr_sgram = 334 { 4, 4, 3, 3, 2, 3, 1, 16, 31, 16, "64-bit DDR SGRAM" }; 335 336static struct fb_fix_screeninfo aty128fb_fix = { 337 .id = "ATY Rage128", 338 .type = FB_TYPE_PACKED_PIXELS, 339 .visual = FB_VISUAL_PSEUDOCOLOR, 340 .xpanstep = 8, 341 .ypanstep = 1, 342 .mmio_len = 0x2000, 343 .accel = FB_ACCEL_ATI_RAGE128, 344}; 345 346static char *mode_option = NULL; 347 348#ifdef CONFIG_PPC_PMAC 349static int default_vmode = VMODE_1024_768_60; 350static int default_cmode = CMODE_8; 351#endif 352 353static int default_crt_on = 0; 354static int default_lcd_on = 1; 355 356#ifdef CONFIG_MTRR 357static bool mtrr = true; 358#endif 359 360#ifdef CONFIG_FB_ATY128_BACKLIGHT 361#ifdef CONFIG_PMAC_BACKLIGHT 362static int backlight = 1; 363#else 364static int backlight = 0; 365#endif 366#endif 367 368/* PLL constants */ 369struct aty128_constants { 370 u32 ref_clk; 371 u32 ppll_min; 372 u32 ppll_max; 373 u32 ref_divider; 374 u32 xclk; 375 u32 fifo_width; 376 u32 fifo_depth; 377}; 378 379struct aty128_crtc { 380 u32 gen_cntl; 381 u32 h_total, h_sync_strt_wid; 382 u32 v_total, v_sync_strt_wid; 383 u32 pitch; 384 u32 offset, offset_cntl; 385 u32 xoffset, yoffset; 386 u32 vxres, vyres; 387 u32 depth, bpp; 388}; 389 390struct aty128_pll { 391 u32 post_divider; 392 u32 feedback_divider; 393 u32 vclk; 394}; 395 396struct aty128_ddafifo { 397 u32 dda_config; 398 u32 dda_on_off; 399}; 400 401/* register values for a specific mode */ 402struct aty128fb_par { 403 struct aty128_crtc crtc; 404 struct aty128_pll pll; 405 struct aty128_ddafifo fifo_reg; 406 u32 accel_flags; 407 struct aty128_constants constants; /* PLL and others */ 408 void __iomem *regbase; /* remapped mmio */ 409 u32 vram_size; /* onboard video ram */ 410 int chip_gen; 411 const struct aty128_meminfo *mem; /* onboard mem info */ 412#ifdef CONFIG_MTRR 413 struct { int vram; int vram_valid; } mtrr; 414#endif 415 int blitter_may_be_busy; 416 int fifo_slots; /* free slots in FIFO (64 max) */ 417 418 int crt_on, lcd_on; 419 struct pci_dev *pdev; 420 struct fb_info *next; 421 int asleep; 422 int lock_blank; 423 424 u8 red[32]; /* see aty128fb_setcolreg */ 425 u8 green[64]; 426 u8 blue[32]; 427 u32 pseudo_palette[16]; /* used for TRUECOLOR */ 428}; 429 430 431#define round_div(n, d) ((n+(d/2))/d) 432 433static int aty128fb_check_var(struct fb_var_screeninfo *var, 434 struct fb_info *info); 435static int aty128fb_set_par(struct fb_info *info); 436static int aty128fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, 437 u_int transp, struct fb_info *info); 438static int aty128fb_pan_display(struct fb_var_screeninfo *var, 439 struct fb_info *fb); 440static int aty128fb_blank(int blank, struct fb_info *fb); 441static int aty128fb_ioctl(struct fb_info *info, u_int cmd, unsigned long arg); 442static int aty128fb_sync(struct fb_info *info); 443 444 /* 445 * Internal routines 446 */ 447 448static int aty128_encode_var(struct fb_var_screeninfo *var, 449 const struct aty128fb_par *par); 450static int aty128_decode_var(struct fb_var_screeninfo *var, 451 struct aty128fb_par *par); 452#if 0 453static void aty128_get_pllinfo(struct aty128fb_par *par, void __iomem *bios); 454static void __iomem *aty128_map_ROM(struct pci_dev *pdev, 455 const struct aty128fb_par *par); 456#endif 457static void aty128_timings(struct aty128fb_par *par); 458static void aty128_init_engine(struct aty128fb_par *par); 459static void aty128_reset_engine(const struct aty128fb_par *par); 460static void aty128_flush_pixel_cache(const struct aty128fb_par *par); 461static void do_wait_for_fifo(u16 entries, struct aty128fb_par *par); 462static void wait_for_fifo(u16 entries, struct aty128fb_par *par); 463static void wait_for_idle(struct aty128fb_par *par); 464static u32 depth_to_dst(u32 depth); 465 466#ifdef CONFIG_FB_ATY128_BACKLIGHT 467static void aty128_bl_set_power(struct fb_info *info, int power); 468#endif 469 470#define BIOS_IN8(v) (readb(bios + (v))) 471#define BIOS_IN16(v) (readb(bios + (v)) | \ 472 (readb(bios + (v) + 1) << 8)) 473#define BIOS_IN32(v) (readb(bios + (v)) | \ 474 (readb(bios + (v) + 1) << 8) | \ 475 (readb(bios + (v) + 2) << 16) | \ 476 (readb(bios + (v) + 3) << 24)) 477 478 479static struct fb_ops aty128fb_ops = { 480 .owner = THIS_MODULE, 481 .fb_check_var = aty128fb_check_var, 482 .fb_set_par = aty128fb_set_par, 483 .fb_setcolreg = aty128fb_setcolreg, 484 .fb_pan_display = aty128fb_pan_display, 485 .fb_blank = aty128fb_blank, 486 .fb_ioctl = aty128fb_ioctl, 487 .fb_sync = aty128fb_sync, 488 .fb_fillrect = cfb_fillrect, 489 .fb_copyarea = cfb_copyarea, 490 .fb_imageblit = cfb_imageblit, 491}; 492 493 /* 494 * Functions to read from/write to the mmio registers 495 * - endian conversions may possibly be avoided by 496 * using the other register aperture. TODO. 497 */ 498static inline u32 _aty_ld_le32(volatile unsigned int regindex, 499 const struct aty128fb_par *par) 500{ 501 return readl (par->regbase + regindex); 502} 503 504static inline void _aty_st_le32(volatile unsigned int regindex, u32 val, 505 const struct aty128fb_par *par) 506{ 507 writel (val, par->regbase + regindex); 508} 509 510static inline u8 _aty_ld_8(unsigned int regindex, 511 const struct aty128fb_par *par) 512{ 513 return readb (par->regbase + regindex); 514} 515 516static inline void _aty_st_8(unsigned int regindex, u8 val, 517 const struct aty128fb_par *par) 518{ 519 writeb (val, par->regbase + regindex); 520} 521 522#define aty_ld_le32(regindex) _aty_ld_le32(regindex, par) 523#define aty_st_le32(regindex, val) _aty_st_le32(regindex, val, par) 524#define aty_ld_8(regindex) _aty_ld_8(regindex, par) 525#define aty_st_8(regindex, val) _aty_st_8(regindex, val, par) 526 527 /* 528 * Functions to read from/write to the pll registers 529 */ 530 531#define aty_ld_pll(pll_index) _aty_ld_pll(pll_index, par) 532#define aty_st_pll(pll_index, val) _aty_st_pll(pll_index, val, par) 533 534 535static u32 _aty_ld_pll(unsigned int pll_index, 536 const struct aty128fb_par *par) 537{ 538 aty_st_8(CLOCK_CNTL_INDEX, pll_index & 0x3F); 539 return aty_ld_le32(CLOCK_CNTL_DATA); 540} 541 542 543static void _aty_st_pll(unsigned int pll_index, u32 val, 544 const struct aty128fb_par *par) 545{ 546 aty_st_8(CLOCK_CNTL_INDEX, (pll_index & 0x3F) | PLL_WR_EN); 547 aty_st_le32(CLOCK_CNTL_DATA, val); 548} 549 550 551/* return true when the PLL has completed an atomic update */ 552static int aty_pll_readupdate(const struct aty128fb_par *par) 553{ 554 return !(aty_ld_pll(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R); 555} 556 557 558static void aty_pll_wait_readupdate(const struct aty128fb_par *par) 559{ 560 unsigned long timeout = jiffies + HZ/100; // should be more than enough 561 int reset = 1; 562 563 while (time_before(jiffies, timeout)) 564 if (aty_pll_readupdate(par)) { 565 reset = 0; 566 break; 567 } 568 569 if (reset) /* reset engine?? */ 570 printk(KERN_DEBUG "aty128fb: PLL write timeout!\n"); 571} 572 573 574/* tell PLL to update */ 575static void aty_pll_writeupdate(const struct aty128fb_par *par) 576{ 577 aty_pll_wait_readupdate(par); 578 579 aty_st_pll(PPLL_REF_DIV, 580 aty_ld_pll(PPLL_REF_DIV) | PPLL_ATOMIC_UPDATE_W); 581} 582 583 584/* write to the scratch register to test r/w functionality */ 585static int register_test(const struct aty128fb_par *par) 586{ 587 u32 val; 588 int flag = 0; 589 590 val = aty_ld_le32(BIOS_0_SCRATCH); 591 592 aty_st_le32(BIOS_0_SCRATCH, 0x55555555); 593 if (aty_ld_le32(BIOS_0_SCRATCH) == 0x55555555) { 594 aty_st_le32(BIOS_0_SCRATCH, 0xAAAAAAAA); 595 596 if (aty_ld_le32(BIOS_0_SCRATCH) == 0xAAAAAAAA) 597 flag = 1; 598 } 599 600 aty_st_le32(BIOS_0_SCRATCH, val); // restore value 601 return flag; 602} 603 604 605/* 606 * Accelerator engine functions 607 */ 608static void do_wait_for_fifo(u16 entries, struct aty128fb_par *par) 609{ 610 int i; 611 612 for (;;) { 613 for (i = 0; i < 2000000; i++) { 614 par->fifo_slots = aty_ld_le32(GUI_STAT) & 0x0fff; 615 if (par->fifo_slots >= entries) 616 return; 617 } 618 aty128_reset_engine(par); 619 } 620} 621 622 623static void wait_for_idle(struct aty128fb_par *par) 624{ 625 int i; 626 627 do_wait_for_fifo(64, par); 628 629 for (;;) { 630 for (i = 0; i < 2000000; i++) { 631 if (!(aty_ld_le32(GUI_STAT) & (1 << 31))) { 632 aty128_flush_pixel_cache(par); 633 par->blitter_may_be_busy = 0; 634 return; 635 } 636 } 637 aty128_reset_engine(par); 638 } 639} 640 641 642static void wait_for_fifo(u16 entries, struct aty128fb_par *par) 643{ 644 if (par->fifo_slots < entries) 645 do_wait_for_fifo(64, par); 646 par->fifo_slots -= entries; 647} 648 649 650static void aty128_flush_pixel_cache(const struct aty128fb_par *par) 651{ 652 int i; 653 u32 tmp; 654 655 tmp = aty_ld_le32(PC_NGUI_CTLSTAT); 656 tmp &= ~(0x00ff); 657 tmp |= 0x00ff; 658 aty_st_le32(PC_NGUI_CTLSTAT, tmp); 659 660 for (i = 0; i < 2000000; i++) 661 if (!(aty_ld_le32(PC_NGUI_CTLSTAT) & PC_BUSY)) 662 break; 663} 664 665 666static void aty128_reset_engine(const struct aty128fb_par *par) 667{ 668 u32 gen_reset_cntl, clock_cntl_index, mclk_cntl; 669 670 aty128_flush_pixel_cache(par); 671 672 clock_cntl_index = aty_ld_le32(CLOCK_CNTL_INDEX); 673 mclk_cntl = aty_ld_pll(MCLK_CNTL); 674 675 aty_st_pll(MCLK_CNTL, mclk_cntl | 0x00030000); 676 677 gen_reset_cntl = aty_ld_le32(GEN_RESET_CNTL); 678 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl | SOFT_RESET_GUI); 679 aty_ld_le32(GEN_RESET_CNTL); 680 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl & ~(SOFT_RESET_GUI)); 681 aty_ld_le32(GEN_RESET_CNTL); 682 683 aty_st_pll(MCLK_CNTL, mclk_cntl); 684 aty_st_le32(CLOCK_CNTL_INDEX, clock_cntl_index); 685 aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl); 686 687 /* use old pio mode */ 688 aty_st_le32(PM4_BUFFER_CNTL, PM4_BUFFER_CNTL_NONPM4); 689 690 DBG("engine reset"); 691} 692 693 694static void aty128_init_engine(struct aty128fb_par *par) 695{ 696 u32 pitch_value; 697 698 wait_for_idle(par); 699 700 /* 3D scaler not spoken here */ 701 wait_for_fifo(1, par); 702 aty_st_le32(SCALE_3D_CNTL, 0x00000000); 703 704 aty128_reset_engine(par); 705 706 pitch_value = par->crtc.pitch; 707 if (par->crtc.bpp == 24) { 708 pitch_value = pitch_value * 3; 709 } 710 711 wait_for_fifo(4, par); 712 /* setup engine offset registers */ 713 aty_st_le32(DEFAULT_OFFSET, 0x00000000); 714 715 /* setup engine pitch registers */ 716 aty_st_le32(DEFAULT_PITCH, pitch_value); 717 718 /* set the default scissor register to max dimensions */ 719 aty_st_le32(DEFAULT_SC_BOTTOM_RIGHT, (0x1FFF << 16) | 0x1FFF); 720 721 /* set the drawing controls registers */ 722 aty_st_le32(DP_GUI_MASTER_CNTL, 723 GMC_SRC_PITCH_OFFSET_DEFAULT | 724 GMC_DST_PITCH_OFFSET_DEFAULT | 725 GMC_SRC_CLIP_DEFAULT | 726 GMC_DST_CLIP_DEFAULT | 727 GMC_BRUSH_SOLIDCOLOR | 728 (depth_to_dst(par->crtc.depth) << 8) | 729 GMC_SRC_DSTCOLOR | 730 GMC_BYTE_ORDER_MSB_TO_LSB | 731 GMC_DP_CONVERSION_TEMP_6500 | 732 ROP3_PATCOPY | 733 GMC_DP_SRC_RECT | 734 GMC_3D_FCN_EN_CLR | 735 GMC_DST_CLR_CMP_FCN_CLEAR | 736 GMC_AUX_CLIP_CLEAR | 737 GMC_WRITE_MASK_SET); 738 739 wait_for_fifo(8, par); 740 /* clear the line drawing registers */ 741 aty_st_le32(DST_BRES_ERR, 0); 742 aty_st_le32(DST_BRES_INC, 0); 743 aty_st_le32(DST_BRES_DEC, 0); 744 745 /* set brush color registers */ 746 aty_st_le32(DP_BRUSH_FRGD_CLR, 0xFFFFFFFF); /* white */ 747 aty_st_le32(DP_BRUSH_BKGD_CLR, 0x00000000); /* black */ 748 749 /* set source color registers */ 750 aty_st_le32(DP_SRC_FRGD_CLR, 0xFFFFFFFF); /* white */ 751 aty_st_le32(DP_SRC_BKGD_CLR, 0x00000000); /* black */ 752 753 /* default write mask */ 754 aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF); 755 756 /* Wait for all the writes to be completed before returning */ 757 wait_for_idle(par); 758} 759 760 761/* convert depth values to their register representation */ 762static u32 depth_to_dst(u32 depth) 763{ 764 if (depth <= 8) 765 return DST_8BPP; 766 else if (depth <= 15) 767 return DST_15BPP; 768 else if (depth == 16) 769 return DST_16BPP; 770 else if (depth <= 24) 771 return DST_24BPP; 772 else if (depth <= 32) 773 return DST_32BPP; 774 775 return -EINVAL; 776} 777 778/* 779 * PLL informations retreival 780 */ 781 782 783#ifndef __sparc__ 784static void __iomem *aty128_map_ROM(const struct aty128fb_par *par, 785 struct pci_dev *dev) 786{ 787 u16 dptr; 788 u8 rom_type; 789 void __iomem *bios; 790 size_t rom_size; 791 792 /* Fix from ATI for problem with Rage128 hardware not leaving ROM enabled */ 793 unsigned int temp; 794 temp = aty_ld_le32(RAGE128_MPP_TB_CONFIG); 795 temp &= 0x00ffffffu; 796 temp |= 0x04 << 24; 797 aty_st_le32(RAGE128_MPP_TB_CONFIG, temp); 798 temp = aty_ld_le32(RAGE128_MPP_TB_CONFIG); 799 800 bios = pci_map_rom(dev, &rom_size); 801 802 if (!bios) { 803 printk(KERN_ERR "aty128fb: ROM failed to map\n"); 804 return NULL; 805 } 806 807 /* Very simple test to make sure it appeared */ 808 if (BIOS_IN16(0) != 0xaa55) { 809 printk(KERN_DEBUG "aty128fb: Invalid ROM signature %x should " 810 " be 0xaa55\n", BIOS_IN16(0)); 811 goto failed; 812 } 813 814 /* Look for the PCI data to check the ROM type */ 815 dptr = BIOS_IN16(0x18); 816 817 /* Check the PCI data signature. If it's wrong, we still assume a normal 818 * x86 ROM for now, until I've verified this works everywhere. 819 * The goal here is more to phase out Open Firmware images. 820 * 821 * Currently, we only look at the first PCI data, we could iteratre and 822 * deal with them all, and we should use fb_bios_start relative to start 823 * of image and not relative start of ROM, but so far, I never found a 824 * dual-image ATI card. 825 * 826 * typedef struct { 827 * u32 signature; + 0x00 828 * u16 vendor; + 0x04 829 * u16 device; + 0x06 830 * u16 reserved_1; + 0x08 831 * u16 dlen; + 0x0a 832 * u8 drevision; + 0x0c 833 * u8 class_hi; + 0x0d 834 * u16 class_lo; + 0x0e 835 * u16 ilen; + 0x10 836 * u16 irevision; + 0x12 837 * u8 type; + 0x14 838 * u8 indicator; + 0x15 839 * u16 reserved_2; + 0x16 840 * } pci_data_t; 841 */ 842 if (BIOS_IN32(dptr) != (('R' << 24) | ('I' << 16) | ('C' << 8) | 'P')) { 843 printk(KERN_WARNING "aty128fb: PCI DATA signature in ROM incorrect: %08x\n", 844 BIOS_IN32(dptr)); 845 goto anyway; 846 } 847 rom_type = BIOS_IN8(dptr + 0x14); 848 switch(rom_type) { 849 case 0: 850 printk(KERN_INFO "aty128fb: Found Intel x86 BIOS ROM Image\n"); 851 break; 852 case 1: 853 printk(KERN_INFO "aty128fb: Found Open Firmware ROM Image\n"); 854 goto failed; 855 case 2: 856 printk(KERN_INFO "aty128fb: Found HP PA-RISC ROM Image\n"); 857 goto failed; 858 default: 859 printk(KERN_INFO "aty128fb: Found unknown type %d ROM Image\n", 860 rom_type); 861 goto failed; 862 } 863 anyway: 864 return bios; 865 866 failed: 867 pci_unmap_rom(dev, bios); 868 return NULL; 869} 870 871static void aty128_get_pllinfo(struct aty128fb_par *par, 872 unsigned char __iomem *bios) 873{ 874 unsigned int bios_hdr; 875 unsigned int bios_pll; 876 877 bios_hdr = BIOS_IN16(0x48); 878 bios_pll = BIOS_IN16(bios_hdr + 0x30); 879 880 par->constants.ppll_max = BIOS_IN32(bios_pll + 0x16); 881 par->constants.ppll_min = BIOS_IN32(bios_pll + 0x12); 882 par->constants.xclk = BIOS_IN16(bios_pll + 0x08); 883 par->constants.ref_divider = BIOS_IN16(bios_pll + 0x10); 884 par->constants.ref_clk = BIOS_IN16(bios_pll + 0x0e); 885 886 DBG("ppll_max %d ppll_min %d xclk %d ref_divider %d ref clock %d\n", 887 par->constants.ppll_max, par->constants.ppll_min, 888 par->constants.xclk, par->constants.ref_divider, 889 par->constants.ref_clk); 890 891} 892 893#ifdef CONFIG_X86 894static void __iomem *aty128_find_mem_vbios(struct aty128fb_par *par) 895{ 896 /* I simplified this code as we used to miss the signatures in 897 * a lot of case. It's now closer to XFree, we just don't check 898 * for signatures at all... Something better will have to be done 899 * if we end up having conflicts 900 */ 901 u32 segstart; 902 unsigned char __iomem *rom_base = NULL; 903 904 for (segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) { 905 rom_base = ioremap(segstart, 0x10000); 906 if (rom_base == NULL) 907 return NULL; 908 if (readb(rom_base) == 0x55 && readb(rom_base + 1) == 0xaa) 909 break; 910 iounmap(rom_base); 911 rom_base = NULL; 912 } 913 return rom_base; 914} 915#endif 916#endif /* ndef(__sparc__) */ 917 918/* fill in known card constants if pll_block is not available */ 919static void aty128_timings(struct aty128fb_par *par) 920{ 921#ifdef CONFIG_PPC_OF 922 /* instead of a table lookup, assume OF has properly 923 * setup the PLL registers and use their values 924 * to set the XCLK values and reference divider values */ 925 926 u32 x_mpll_ref_fb_div; 927 u32 xclk_cntl; 928 u32 Nx, M; 929 unsigned PostDivSet[] = { 0, 1, 2, 4, 8, 3, 6, 12 }; 930#endif 931 932 if (!par->constants.ref_clk) 933 par->constants.ref_clk = 2950; 934 935#ifdef CONFIG_PPC_OF 936 x_mpll_ref_fb_div = aty_ld_pll(X_MPLL_REF_FB_DIV); 937 xclk_cntl = aty_ld_pll(XCLK_CNTL) & 0x7; 938 Nx = (x_mpll_ref_fb_div & 0x00ff00) >> 8; 939 M = x_mpll_ref_fb_div & 0x0000ff; 940 941 par->constants.xclk = round_div((2 * Nx * par->constants.ref_clk), 942 (M * PostDivSet[xclk_cntl])); 943 944 par->constants.ref_divider = 945 aty_ld_pll(PPLL_REF_DIV) & PPLL_REF_DIV_MASK; 946#endif 947 948 if (!par->constants.ref_divider) { 949 par->constants.ref_divider = 0x3b; 950 951 aty_st_pll(X_MPLL_REF_FB_DIV, 0x004c4c1e); 952 aty_pll_writeupdate(par); 953 } 954 aty_st_pll(PPLL_REF_DIV, par->constants.ref_divider); 955 aty_pll_writeupdate(par); 956 957 /* from documentation */ 958 if (!par->constants.ppll_min) 959 par->constants.ppll_min = 12500; 960 if (!par->constants.ppll_max) 961 par->constants.ppll_max = 25000; /* 23000 on some cards? */ 962 if (!par->constants.xclk) 963 par->constants.xclk = 0x1d4d; /* same as mclk */ 964 965 par->constants.fifo_width = 128; 966 par->constants.fifo_depth = 32; 967 968 switch (aty_ld_le32(MEM_CNTL) & 0x3) { 969 case 0: 970 par->mem = &sdr_128; 971 break; 972 case 1: 973 par->mem = &sdr_sgram; 974 break; 975 case 2: 976 par->mem = &ddr_sgram; 977 break; 978 default: 979 par->mem = &sdr_sgram; 980 } 981} 982 983 984 985/* 986 * CRTC programming 987 */ 988 989/* Program the CRTC registers */ 990static void aty128_set_crtc(const struct aty128_crtc *crtc, 991 const struct aty128fb_par *par) 992{ 993 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl); 994 aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_total); 995 aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid); 996 aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_total); 997 aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid); 998 aty_st_le32(CRTC_PITCH, crtc->pitch); 999 aty_st_le32(CRTC_OFFSET, crtc->offset); 1000 aty_st_le32(CRTC_OFFSET_CNTL, crtc->offset_cntl); 1001 /* Disable ATOMIC updating. Is this the right place? */ 1002 aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~(0x00030000)); 1003} 1004 1005 1006static int aty128_var_to_crtc(const struct fb_var_screeninfo *var, 1007 struct aty128_crtc *crtc, 1008 const struct aty128fb_par *par) 1009{ 1010 u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp, dst; 1011 u32 left, right, upper, lower, hslen, vslen, sync, vmode; 1012 u32 h_total, h_disp, h_sync_strt, h_sync_wid, h_sync_pol; 1013 u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync; 1014 u32 depth, bytpp; 1015 u8 mode_bytpp[7] = { 0, 0, 1, 2, 2, 3, 4 }; 1016 1017 /* input */ 1018 xres = var->xres; 1019 yres = var->yres; 1020 vxres = var->xres_virtual; 1021 vyres = var->yres_virtual; 1022 xoffset = var->xoffset; 1023 yoffset = var->yoffset; 1024 bpp = var->bits_per_pixel; 1025 left = var->left_margin; 1026 right = var->right_margin; 1027 upper = var->upper_margin; 1028 lower = var->lower_margin; 1029 hslen = var->hsync_len; 1030 vslen = var->vsync_len; 1031 sync = var->sync; 1032 vmode = var->vmode; 1033 1034 if (bpp != 16) 1035 depth = bpp; 1036 else 1037 depth = (var->green.length == 6) ? 16 : 15; 1038 1039 /* check for mode eligibility 1040 * accept only non interlaced modes */ 1041 if ((vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) 1042 return -EINVAL; 1043 1044 /* convert (and round up) and validate */ 1045 xres = (xres + 7) & ~7; 1046 xoffset = (xoffset + 7) & ~7; 1047 1048 if (vxres < xres + xoffset) 1049 vxres = xres + xoffset; 1050 1051 if (vyres < yres + yoffset) 1052 vyres = yres + yoffset; 1053 1054 /* convert depth into ATI register depth */ 1055 dst = depth_to_dst(depth); 1056 1057 if (dst == -EINVAL) { 1058 printk(KERN_ERR "aty128fb: Invalid depth or RGBA\n"); 1059 return -EINVAL; 1060 } 1061 1062 /* convert register depth to bytes per pixel */ 1063 bytpp = mode_bytpp[dst]; 1064 1065 /* make sure there is enough video ram for the mode */ 1066 if ((u32)(vxres * vyres * bytpp) > par->vram_size) { 1067 printk(KERN_ERR "aty128fb: Not enough memory for mode\n"); 1068 return -EINVAL; 1069 } 1070 1071 h_disp = (xres >> 3) - 1; 1072 h_total = (((xres + right + hslen + left) >> 3) - 1) & 0xFFFFL; 1073 1074 v_disp = yres - 1; 1075 v_total = (yres + upper + vslen + lower - 1) & 0xFFFFL; 1076 1077 /* check to make sure h_total and v_total are in range */ 1078 if (((h_total >> 3) - 1) > 0x1ff || (v_total - 1) > 0x7FF) { 1079 printk(KERN_ERR "aty128fb: invalid width ranges\n"); 1080 return -EINVAL; 1081 } 1082 1083 h_sync_wid = (hslen + 7) >> 3; 1084 if (h_sync_wid == 0) 1085 h_sync_wid = 1; 1086 else if (h_sync_wid > 0x3f) /* 0x3f = max hwidth */ 1087 h_sync_wid = 0x3f; 1088 1089 h_sync_strt = (h_disp << 3) + right; 1090 1091 v_sync_wid = vslen; 1092 if (v_sync_wid == 0) 1093 v_sync_wid = 1; 1094 else if (v_sync_wid > 0x1f) /* 0x1f = max vwidth */ 1095 v_sync_wid = 0x1f; 1096 1097 v_sync_strt = v_disp + lower; 1098 1099 h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1; 1100 v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1; 1101 1102 c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0; 1103 1104 crtc->gen_cntl = 0x3000000L | c_sync | (dst << 8); 1105 1106 crtc->h_total = h_total | (h_disp << 16); 1107 crtc->v_total = v_total | (v_disp << 16); 1108 1109 crtc->h_sync_strt_wid = h_sync_strt | (h_sync_wid << 16) | 1110 (h_sync_pol << 23); 1111 crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid << 16) | 1112 (v_sync_pol << 23); 1113 1114 crtc->pitch = vxres >> 3; 1115 1116 crtc->offset = 0; 1117 1118 if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) 1119 crtc->offset_cntl = 0x00010000; 1120 else 1121 crtc->offset_cntl = 0; 1122 1123 crtc->vxres = vxres; 1124 crtc->vyres = vyres; 1125 crtc->xoffset = xoffset; 1126 crtc->yoffset = yoffset; 1127 crtc->depth = depth; 1128 crtc->bpp = bpp; 1129 1130 return 0; 1131} 1132 1133 1134static int aty128_pix_width_to_var(int pix_width, struct fb_var_screeninfo *var) 1135{ 1136 1137 /* fill in pixel info */ 1138 var->red.msb_right = 0; 1139 var->green.msb_right = 0; 1140 var->blue.offset = 0; 1141 var->blue.msb_right = 0; 1142 var->transp.offset = 0; 1143 var->transp.length = 0; 1144 var->transp.msb_right = 0; 1145 switch (pix_width) { 1146 case CRTC_PIX_WIDTH_8BPP: 1147 var->bits_per_pixel = 8; 1148 var->red.offset = 0; 1149 var->red.length = 8; 1150 var->green.offset = 0; 1151 var->green.length = 8; 1152 var->blue.length = 8; 1153 break; 1154 case CRTC_PIX_WIDTH_15BPP: 1155 var->bits_per_pixel = 16; 1156 var->red.offset = 10; 1157 var->red.length = 5; 1158 var->green.offset = 5; 1159 var->green.length = 5; 1160 var->blue.length = 5; 1161 break; 1162 case CRTC_PIX_WIDTH_16BPP: 1163 var->bits_per_pixel = 16; 1164 var->red.offset = 11; 1165 var->red.length = 5; 1166 var->green.offset = 5; 1167 var->green.length = 6; 1168 var->blue.length = 5; 1169 break; 1170 case CRTC_PIX_WIDTH_24BPP: 1171 var->bits_per_pixel = 24; 1172 var->red.offset = 16; 1173 var->red.length = 8; 1174 var->green.offset = 8; 1175 var->green.length = 8; 1176 var->blue.length = 8; 1177 break; 1178 case CRTC_PIX_WIDTH_32BPP: 1179 var->bits_per_pixel = 32; 1180 var->red.offset = 16; 1181 var->red.length = 8; 1182 var->green.offset = 8; 1183 var->green.length = 8; 1184 var->blue.length = 8; 1185 var->transp.offset = 24; 1186 var->transp.length = 8; 1187 break; 1188 default: 1189 printk(KERN_ERR "aty128fb: Invalid pixel width\n"); 1190 return -EINVAL; 1191 } 1192 1193 return 0; 1194} 1195 1196 1197static int aty128_crtc_to_var(const struct aty128_crtc *crtc, 1198 struct fb_var_screeninfo *var) 1199{ 1200 u32 xres, yres, left, right, upper, lower, hslen, vslen, sync; 1201 u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid, h_sync_pol; 1202 u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync; 1203 u32 pix_width; 1204 1205 /* fun with masking */ 1206 h_total = crtc->h_total & 0x1ff; 1207 h_disp = (crtc->h_total >> 16) & 0xff; 1208 h_sync_strt = (crtc->h_sync_strt_wid >> 3) & 0x1ff; 1209 h_sync_dly = crtc->h_sync_strt_wid & 0x7; 1210 h_sync_wid = (crtc->h_sync_strt_wid >> 16) & 0x3f; 1211 h_sync_pol = (crtc->h_sync_strt_wid >> 23) & 0x1; 1212 v_total = crtc->v_total & 0x7ff; 1213 v_disp = (crtc->v_total >> 16) & 0x7ff; 1214 v_sync_strt = crtc->v_sync_strt_wid & 0x7ff; 1215 v_sync_wid = (crtc->v_sync_strt_wid >> 16) & 0x1f; 1216 v_sync_pol = (crtc->v_sync_strt_wid >> 23) & 0x1; 1217 c_sync = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0; 1218 pix_width = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK; 1219 1220 /* do conversions */ 1221 xres = (h_disp + 1) << 3; 1222 yres = v_disp + 1; 1223 left = ((h_total - h_sync_strt - h_sync_wid) << 3) - h_sync_dly; 1224 right = ((h_sync_strt - h_disp) << 3) + h_sync_dly; 1225 hslen = h_sync_wid << 3; 1226 upper = v_total - v_sync_strt - v_sync_wid; 1227 lower = v_sync_strt - v_disp; 1228 vslen = v_sync_wid; 1229 sync = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) | 1230 (v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) | 1231 (c_sync ? FB_SYNC_COMP_HIGH_ACT : 0); 1232 1233 aty128_pix_width_to_var(pix_width, var); 1234 1235 var->xres = xres; 1236 var->yres = yres; 1237 var->xres_virtual = crtc->vxres; 1238 var->yres_virtual = crtc->vyres; 1239 var->xoffset = crtc->xoffset; 1240 var->yoffset = crtc->yoffset; 1241 var->left_margin = left; 1242 var->right_margin = right; 1243 var->upper_margin = upper; 1244 var->lower_margin = lower; 1245 var->hsync_len = hslen; 1246 var->vsync_len = vslen; 1247 var->sync = sync; 1248 var->vmode = FB_VMODE_NONINTERLACED; 1249 1250 return 0; 1251} 1252 1253static void aty128_set_crt_enable(struct aty128fb_par *par, int on) 1254{ 1255 if (on) { 1256 aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) | 1257 CRT_CRTC_ON); 1258 aty_st_le32(DAC_CNTL, (aty_ld_le32(DAC_CNTL) | 1259 DAC_PALETTE2_SNOOP_EN)); 1260 } else 1261 aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) & 1262 ~CRT_CRTC_ON); 1263} 1264 1265static void aty128_set_lcd_enable(struct aty128fb_par *par, int on) 1266{ 1267 u32 reg; 1268#ifdef CONFIG_FB_ATY128_BACKLIGHT 1269 struct fb_info *info = pci_get_drvdata(par->pdev); 1270#endif 1271 1272 if (on) { 1273 reg = aty_ld_le32(LVDS_GEN_CNTL); 1274 reg |= LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION; 1275 reg &= ~LVDS_DISPLAY_DIS; 1276 aty_st_le32(LVDS_GEN_CNTL, reg); 1277#ifdef CONFIG_FB_ATY128_BACKLIGHT 1278 aty128_bl_set_power(info, FB_BLANK_UNBLANK); 1279#endif 1280 } else { 1281#ifdef CONFIG_FB_ATY128_BACKLIGHT 1282 aty128_bl_set_power(info, FB_BLANK_POWERDOWN); 1283#endif 1284 reg = aty_ld_le32(LVDS_GEN_CNTL); 1285 reg |= LVDS_DISPLAY_DIS; 1286 aty_st_le32(LVDS_GEN_CNTL, reg); 1287 mdelay(100); 1288 reg &= ~(LVDS_ON /*| LVDS_EN*/); 1289 aty_st_le32(LVDS_GEN_CNTL, reg); 1290 } 1291} 1292 1293static void aty128_set_pll(struct aty128_pll *pll, 1294 const struct aty128fb_par *par) 1295{ 1296 u32 div3; 1297 1298 unsigned char post_conv[] = /* register values for post dividers */ 1299 { 2, 0, 1, 4, 2, 2, 6, 2, 3, 2, 2, 2, 7 }; 1300 1301 /* select PPLL_DIV_3 */ 1302 aty_st_le32(CLOCK_CNTL_INDEX, aty_ld_le32(CLOCK_CNTL_INDEX) | (3 << 8)); 1303 1304 /* reset PLL */ 1305 aty_st_pll(PPLL_CNTL, 1306 aty_ld_pll(PPLL_CNTL) | PPLL_RESET | PPLL_ATOMIC_UPDATE_EN); 1307 1308 /* write the reference divider */ 1309 aty_pll_wait_readupdate(par); 1310 aty_st_pll(PPLL_REF_DIV, par->constants.ref_divider & 0x3ff); 1311 aty_pll_writeupdate(par); 1312 1313 div3 = aty_ld_pll(PPLL_DIV_3); 1314 div3 &= ~PPLL_FB3_DIV_MASK; 1315 div3 |= pll->feedback_divider; 1316 div3 &= ~PPLL_POST3_DIV_MASK; 1317 div3 |= post_conv[pll->post_divider] << 16; 1318 1319 /* write feedback and post dividers */ 1320 aty_pll_wait_readupdate(par); 1321 aty_st_pll(PPLL_DIV_3, div3); 1322 aty_pll_writeupdate(par); 1323 1324 aty_pll_wait_readupdate(par); 1325 aty_st_pll(HTOTAL_CNTL, 0); /* no horiz crtc adjustment */ 1326 aty_pll_writeupdate(par); 1327 1328 /* clear the reset, just in case */ 1329 aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~PPLL_RESET); 1330} 1331 1332 1333static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, 1334 const struct aty128fb_par *par) 1335{ 1336 const struct aty128_constants c = par->constants; 1337 unsigned char post_dividers[] = {1,2,4,8,3,6,12}; 1338 u32 output_freq; 1339 u32 vclk; /* in .01 MHz */ 1340 int i = 0; 1341 u32 n, d; 1342 1343 vclk = 100000000 / period_in_ps; /* convert units to 10 kHz */ 1344 1345 /* adjust pixel clock if necessary */ 1346 if (vclk > c.ppll_max) 1347 vclk = c.ppll_max; 1348 if (vclk * 12 < c.ppll_min) 1349 vclk = c.ppll_min/12; 1350 1351 /* now, find an acceptable divider */ 1352 for (i = 0; i < ARRAY_SIZE(post_dividers); i++) { 1353 output_freq = post_dividers[i] * vclk; 1354 if (output_freq >= c.ppll_min && output_freq <= c.ppll_max) { 1355 pll->post_divider = post_dividers[i]; 1356 break; 1357 } 1358 } 1359 1360 if (i == ARRAY_SIZE(post_dividers)) 1361 return -EINVAL; 1362 1363 /* calculate feedback divider */ 1364 n = c.ref_divider * output_freq; 1365 d = c.ref_clk; 1366 1367 pll->feedback_divider = round_div(n, d); 1368 pll->vclk = vclk; 1369 1370 DBG("post %d feedback %d vlck %d output %d ref_divider %d " 1371 "vclk_per: %d\n", pll->post_divider, 1372 pll->feedback_divider, vclk, output_freq, 1373 c.ref_divider, period_in_ps); 1374 1375 return 0; 1376} 1377 1378 1379static int aty128_pll_to_var(const struct aty128_pll *pll, 1380 struct fb_var_screeninfo *var) 1381{ 1382 var->pixclock = 100000000 / pll->vclk; 1383 1384 return 0; 1385} 1386 1387 1388static void aty128_set_fifo(const struct aty128_ddafifo *dsp, 1389 const struct aty128fb_par *par) 1390{ 1391 aty_st_le32(DDA_CONFIG, dsp->dda_config); 1392 aty_st_le32(DDA_ON_OFF, dsp->dda_on_off); 1393} 1394 1395 1396static int aty128_ddafifo(struct aty128_ddafifo *dsp, 1397 const struct aty128_pll *pll, 1398 u32 depth, 1399 const struct aty128fb_par *par) 1400{ 1401 const struct aty128_meminfo *m = par->mem; 1402 u32 xclk = par->constants.xclk; 1403 u32 fifo_width = par->constants.fifo_width; 1404 u32 fifo_depth = par->constants.fifo_depth; 1405 s32 x, b, p, ron, roff; 1406 u32 n, d, bpp; 1407 1408 /* round up to multiple of 8 */ 1409 bpp = (depth+7) & ~7; 1410 1411 n = xclk * fifo_width; 1412 d = pll->vclk * bpp; 1413 x = round_div(n, d); 1414 1415 ron = 4 * m->MB + 1416 3 * ((m->Trcd - 2 > 0) ? m->Trcd - 2 : 0) + 1417 2 * m->Trp + 1418 m->Twr + 1419 m->CL + 1420 m->Tr2w + 1421 x; 1422 1423 DBG("x %x\n", x); 1424 1425 b = 0; 1426 while (x) { 1427 x >>= 1; 1428 b++; 1429 } 1430 p = b + 1; 1431 1432 ron <<= (11 - p); 1433 1434 n <<= (11 - p); 1435 x = round_div(n, d); 1436 roff = x * (fifo_depth - 4); 1437 1438 if ((ron + m->Rloop) >= roff) { 1439 printk(KERN_ERR "aty128fb: Mode out of range!\n"); 1440 return -EINVAL; 1441 } 1442 1443 DBG("p: %x rloop: %x x: %x ron: %x roff: %x\n", 1444 p, m->Rloop, x, ron, roff); 1445 1446 dsp->dda_config = p << 16 | m->Rloop << 20 | x; 1447 dsp->dda_on_off = ron << 16 | roff; 1448 1449 return 0; 1450} 1451 1452 1453/* 1454 * This actually sets the video mode. 1455 */ 1456static int aty128fb_set_par(struct fb_info *info) 1457{ 1458 struct aty128fb_par *par = info->par; 1459 u32 config; 1460 int err; 1461 1462 if ((err = aty128_decode_var(&info->var, par)) != 0) 1463 return err; 1464 1465 if (par->blitter_may_be_busy) 1466 wait_for_idle(par); 1467 1468 /* clear all registers that may interfere with mode setting */ 1469 aty_st_le32(OVR_CLR, 0); 1470 aty_st_le32(OVR_WID_LEFT_RIGHT, 0); 1471 aty_st_le32(OVR_WID_TOP_BOTTOM, 0); 1472 aty_st_le32(OV0_SCALE_CNTL, 0); 1473 aty_st_le32(MPP_TB_CONFIG, 0); 1474 aty_st_le32(MPP_GP_CONFIG, 0); 1475 aty_st_le32(SUBPIC_CNTL, 0); 1476 aty_st_le32(VIPH_CONTROL, 0); 1477 aty_st_le32(I2C_CNTL_1, 0); /* turn off i2c */ 1478 aty_st_le32(GEN_INT_CNTL, 0); /* turn off interrupts */ 1479 aty_st_le32(CAP0_TRIG_CNTL, 0); 1480 aty_st_le32(CAP1_TRIG_CNTL, 0); 1481 1482 aty_st_8(CRTC_EXT_CNTL + 1, 4); /* turn video off */ 1483 1484 aty128_set_crtc(&par->crtc, par); 1485 aty128_set_pll(&par->pll, par); 1486 aty128_set_fifo(&par->fifo_reg, par); 1487 1488 config = aty_ld_le32(CNFG_CNTL) & ~3; 1489 1490#if defined(__BIG_ENDIAN) 1491 if (par->crtc.bpp == 32) 1492 config |= 2; /* make aperture do 32 bit swapping */ 1493 else if (par->crtc.bpp == 16) 1494 config |= 1; /* make aperture do 16 bit swapping */ 1495#endif 1496 1497 aty_st_le32(CNFG_CNTL, config); 1498 aty_st_8(CRTC_EXT_CNTL + 1, 0); /* turn the video back on */ 1499 1500 info->fix.line_length = (par->crtc.vxres * par->crtc.bpp) >> 3; 1501 info->fix.visual = par->crtc.bpp == 8 ? FB_VISUAL_PSEUDOCOLOR 1502 : FB_VISUAL_DIRECTCOLOR; 1503 1504 if (par->chip_gen == rage_M3) { 1505 aty128_set_crt_enable(par, par->crt_on); 1506 aty128_set_lcd_enable(par, par->lcd_on); 1507 } 1508 if (par->accel_flags & FB_ACCELF_TEXT) 1509 aty128_init_engine(par); 1510 1511#ifdef CONFIG_BOOTX_TEXT 1512 btext_update_display(info->fix.smem_start, 1513 (((par->crtc.h_total>>16) & 0xff)+1)*8, 1514 ((par->crtc.v_total>>16) & 0x7ff)+1, 1515 par->crtc.bpp, 1516 par->crtc.vxres*par->crtc.bpp/8); 1517#endif /* CONFIG_BOOTX_TEXT */ 1518 1519 return 0; 1520} 1521 1522/* 1523 * encode/decode the User Defined Part of the Display 1524 */ 1525 1526static int aty128_decode_var(struct fb_var_screeninfo *var, 1527 struct aty128fb_par *par) 1528{ 1529 int err; 1530 struct aty128_crtc crtc; 1531 struct aty128_pll pll; 1532 struct aty128_ddafifo fifo_reg; 1533 1534 if ((err = aty128_var_to_crtc(var, &crtc, par))) 1535 return err; 1536 1537 if ((err = aty128_var_to_pll(var->pixclock, &pll, par))) 1538 return err; 1539 1540 if ((err = aty128_ddafifo(&fifo_reg, &pll, crtc.depth, par))) 1541 return err; 1542 1543 par->crtc = crtc; 1544 par->pll = pll; 1545 par->fifo_reg = fifo_reg; 1546 par->accel_flags = var->accel_flags; 1547 1548 return 0; 1549} 1550 1551 1552static int aty128_encode_var(struct fb_var_screeninfo *var, 1553 const struct aty128fb_par *par) 1554{ 1555 int err; 1556 1557 if ((err = aty128_crtc_to_var(&par->crtc, var))) 1558 return err; 1559 1560 if ((err = aty128_pll_to_var(&par->pll, var))) 1561 return err; 1562 1563 var->nonstd = 0; 1564 var->activate = 0; 1565 1566 var->height = -1; 1567 var->width = -1; 1568 var->accel_flags = par->accel_flags; 1569 1570 return 0; 1571} 1572 1573 1574static int aty128fb_check_var(struct fb_var_screeninfo *var, 1575 struct fb_info *info) 1576{ 1577 struct aty128fb_par par; 1578 int err; 1579 1580 par = *(struct aty128fb_par *)info->par; 1581 if ((err = aty128_decode_var(var, &par)) != 0) 1582 return err; 1583 aty128_encode_var(var, &par); 1584 return 0; 1585} 1586 1587 1588/* 1589 * Pan or Wrap the Display 1590 */ 1591static int aty128fb_pan_display(struct fb_var_screeninfo *var, 1592 struct fb_info *fb) 1593{ 1594 struct aty128fb_par *par = fb->par; 1595 u32 xoffset, yoffset; 1596 u32 offset; 1597 u32 xres, yres; 1598 1599 xres = (((par->crtc.h_total >> 16) & 0xff) + 1) << 3; 1600 yres = ((par->crtc.v_total >> 16) & 0x7ff) + 1; 1601 1602 xoffset = (var->xoffset +7) & ~7; 1603 yoffset = var->yoffset; 1604 1605 if (xoffset+xres > par->crtc.vxres || yoffset+yres > par->crtc.vyres) 1606 return -EINVAL; 1607 1608 par->crtc.xoffset = xoffset; 1609 par->crtc.yoffset = yoffset; 1610 1611 offset = ((yoffset * par->crtc.vxres + xoffset) * (par->crtc.bpp >> 3)) 1612 & ~7; 1613 1614 if (par->crtc.bpp == 24) 1615 offset += 8 * (offset % 3); /* Must be multiple of 8 and 3 */ 1616 1617 aty_st_le32(CRTC_OFFSET, offset); 1618 1619 return 0; 1620} 1621 1622 1623/* 1624 * Helper function to store a single palette register 1625 */ 1626static void aty128_st_pal(u_int regno, u_int red, u_int green, u_int blue, 1627 struct aty128fb_par *par) 1628{ 1629 if (par->chip_gen == rage_M3) { 1630#if 0 1631 /* Note: For now, on M3, we set palette on both heads, which may 1632 * be useless. Can someone with a M3 check this ? 1633 * 1634 * This code would still be useful if using the second CRTC to 1635 * do mirroring 1636 */ 1637 1638 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | 1639 DAC_PALETTE_ACCESS_CNTL); 1640 aty_st_8(PALETTE_INDEX, regno); 1641 aty_st_le32(PALETTE_DATA, (red<<16)|(green<<8)|blue); 1642#endif 1643 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & 1644 ~DAC_PALETTE_ACCESS_CNTL); 1645 } 1646 1647 aty_st_8(PALETTE_INDEX, regno); 1648 aty_st_le32(PALETTE_DATA, (red<<16)|(green<<8)|blue); 1649} 1650 1651static int aty128fb_sync(struct fb_info *info) 1652{ 1653 struct aty128fb_par *par = info->par; 1654 1655 if (par->blitter_may_be_busy) 1656 wait_for_idle(par); 1657 return 0; 1658} 1659 1660#ifndef MODULE 1661static int aty128fb_setup(char *options) 1662{ 1663 char *this_opt; 1664 1665 if (!options || !*options) 1666 return 0; 1667 1668 while ((this_opt = strsep(&options, ",")) != NULL) { 1669 if (!strncmp(this_opt, "lcd:", 4)) { 1670 default_lcd_on = simple_strtoul(this_opt+4, NULL, 0); 1671 continue; 1672 } else if (!strncmp(this_opt, "crt:", 4)) { 1673 default_crt_on = simple_strtoul(this_opt+4, NULL, 0); 1674 continue; 1675 } else if (!strncmp(this_opt, "backlight:", 10)) { 1676#ifdef CONFIG_FB_ATY128_BACKLIGHT 1677 backlight = simple_strtoul(this_opt+10, NULL, 0); 1678#endif 1679 continue; 1680 } 1681#ifdef CONFIG_MTRR 1682 if(!strncmp(this_opt, "nomtrr", 6)) { 1683 mtrr = 0; 1684 continue; 1685 } 1686#endif 1687#ifdef CONFIG_PPC_PMAC 1688 /* vmode and cmode deprecated */ 1689 if (!strncmp(this_opt, "vmode:", 6)) { 1690 unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0); 1691 if (vmode > 0 && vmode <= VMODE_MAX) 1692 default_vmode = vmode; 1693 continue; 1694 } else if (!strncmp(this_opt, "cmode:", 6)) { 1695 unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0); 1696 switch (cmode) { 1697 case 0: 1698 case 8: 1699 default_cmode = CMODE_8; 1700 break; 1701 case 15: 1702 case 16: 1703 default_cmode = CMODE_16; 1704 break; 1705 case 24: 1706 case 32: 1707 default_cmode = CMODE_32; 1708 break; 1709 } 1710 continue; 1711 } 1712#endif /* CONFIG_PPC_PMAC */ 1713 mode_option = this_opt; 1714 } 1715 return 0; 1716} 1717#endif /* MODULE */ 1718 1719/* Backlight */ 1720#ifdef CONFIG_FB_ATY128_BACKLIGHT 1721#define MAX_LEVEL 0xFF 1722 1723static int aty128_bl_get_level_brightness(struct aty128fb_par *par, 1724 int level) 1725{ 1726 struct fb_info *info = pci_get_drvdata(par->pdev); 1727 int atylevel; 1728 1729 /* Get and convert the value */ 1730 /* No locking of bl_curve since we read a single value */ 1731 atylevel = MAX_LEVEL - 1732 (info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_LEVEL); 1733 1734 if (atylevel < 0) 1735 atylevel = 0; 1736 else if (atylevel > MAX_LEVEL) 1737 atylevel = MAX_LEVEL; 1738 1739 return atylevel; 1740} 1741 1742/* We turn off the LCD completely instead of just dimming the backlight. 1743 * This provides greater power saving and the display is useless without 1744 * backlight anyway 1745 */ 1746#define BACKLIGHT_LVDS_OFF 1747/* That one prevents proper CRT output with LCD off */ 1748#undef BACKLIGHT_DAC_OFF 1749 1750static int aty128_bl_update_status(struct backlight_device *bd) 1751{ 1752 struct aty128fb_par *par = bl_get_data(bd); 1753 unsigned int reg = aty_ld_le32(LVDS_GEN_CNTL); 1754 int level; 1755 1756 if (bd->props.power != FB_BLANK_UNBLANK || 1757 bd->props.fb_blank != FB_BLANK_UNBLANK || 1758 !par->lcd_on) 1759 level = 0; 1760 else 1761 level = bd->props.brightness; 1762 1763 reg |= LVDS_BL_MOD_EN | LVDS_BLON; 1764 if (level > 0) { 1765 reg |= LVDS_DIGION; 1766 if (!(reg & LVDS_ON)) { 1767 reg &= ~LVDS_BLON; 1768 aty_st_le32(LVDS_GEN_CNTL, reg); 1769 aty_ld_le32(LVDS_GEN_CNTL); 1770 mdelay(10); 1771 reg |= LVDS_BLON; 1772 aty_st_le32(LVDS_GEN_CNTL, reg); 1773 } 1774 reg &= ~LVDS_BL_MOD_LEVEL_MASK; 1775 reg |= (aty128_bl_get_level_brightness(par, level) << 1776 LVDS_BL_MOD_LEVEL_SHIFT); 1777#ifdef BACKLIGHT_LVDS_OFF 1778 reg |= LVDS_ON | LVDS_EN; 1779 reg &= ~LVDS_DISPLAY_DIS; 1780#endif 1781 aty_st_le32(LVDS_GEN_CNTL, reg); 1782#ifdef BACKLIGHT_DAC_OFF 1783 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & (~DAC_PDWN)); 1784#endif 1785 } else { 1786 reg &= ~LVDS_BL_MOD_LEVEL_MASK; 1787 reg |= (aty128_bl_get_level_brightness(par, 0) << 1788 LVDS_BL_MOD_LEVEL_SHIFT); 1789#ifdef BACKLIGHT_LVDS_OFF 1790 reg |= LVDS_DISPLAY_DIS; 1791 aty_st_le32(LVDS_GEN_CNTL, reg); 1792 aty_ld_le32(LVDS_GEN_CNTL); 1793 udelay(10); 1794 reg &= ~(LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION); 1795#endif 1796 aty_st_le32(LVDS_GEN_CNTL, reg); 1797#ifdef BACKLIGHT_DAC_OFF 1798 aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PDWN); 1799#endif 1800 } 1801 1802 return 0; 1803} 1804 1805static const struct backlight_ops aty128_bl_data = { 1806 .update_status = aty128_bl_update_status, 1807}; 1808 1809static void aty128_bl_set_power(struct fb_info *info, int power) 1810{ 1811 if (info->bl_dev) { 1812 info->bl_dev->props.power = power; 1813 backlight_update_status(info->bl_dev); 1814 } 1815} 1816 1817static void aty128_bl_init(struct aty128fb_par *par) 1818{ 1819 struct backlight_properties props; 1820 struct fb_info *info = pci_get_drvdata(par->pdev); 1821 struct backlight_device *bd; 1822 char name[12]; 1823 1824 /* Could be extended to Rage128Pro LVDS output too */ 1825 if (par->chip_gen != rage_M3) 1826 return; 1827 1828#ifdef CONFIG_PMAC_BACKLIGHT 1829 if (!pmac_has_backlight_type("ati")) 1830 return; 1831#endif 1832 1833 snprintf(name, sizeof(name), "aty128bl%d", info->node); 1834 1835 memset(&props, 0, sizeof(struct backlight_properties)); 1836 props.type = BACKLIGHT_RAW; 1837 props.max_brightness = FB_BACKLIGHT_LEVELS - 1; 1838 bd = backlight_device_register(name, info->dev, par, &aty128_bl_data, 1839 &props); 1840 if (IS_ERR(bd)) { 1841 info->bl_dev = NULL; 1842 printk(KERN_WARNING "aty128: Backlight registration failed\n"); 1843 goto error; 1844 } 1845 1846 info->bl_dev = bd; 1847 fb_bl_default_curve(info, 0, 1848 63 * FB_BACKLIGHT_MAX / MAX_LEVEL, 1849 219 * FB_BACKLIGHT_MAX / MAX_LEVEL); 1850 1851 bd->props.brightness = bd->props.max_brightness; 1852 bd->props.power = FB_BLANK_UNBLANK; 1853 backlight_update_status(bd); 1854 1855 printk("aty128: Backlight initialized (%s)\n", name); 1856 1857 return; 1858 1859error: 1860 return; 1861} 1862 1863static void aty128_bl_exit(struct backlight_device *bd) 1864{ 1865 backlight_device_unregister(bd); 1866 printk("aty128: Backlight unloaded\n"); 1867} 1868#endif /* CONFIG_FB_ATY128_BACKLIGHT */ 1869 1870/* 1871 * Initialisation 1872 */ 1873 1874#ifdef CONFIG_PPC_PMAC__disabled 1875static void aty128_early_resume(void *data) 1876{ 1877 struct aty128fb_par *par = data; 1878 1879 if (!console_trylock()) 1880 return; 1881 pci_restore_state(par->pdev); 1882 aty128_do_resume(par->pdev); 1883 console_unlock(); 1884} 1885#endif /* CONFIG_PPC_PMAC */ 1886 1887static int aty128_init(struct pci_dev *pdev, const struct pci_device_id *ent) 1888{ 1889 struct fb_info *info = pci_get_drvdata(pdev); 1890 struct aty128fb_par *par = info->par; 1891 struct fb_var_screeninfo var; 1892 char video_card[50]; 1893 u8 chip_rev; 1894 u32 dac; 1895 1896 /* Get the chip revision */ 1897 chip_rev = (aty_ld_le32(CNFG_CNTL) >> 16) & 0x1F; 1898 1899 strcpy(video_card, "Rage128 XX "); 1900 video_card[8] = ent->device >> 8; 1901 video_card[9] = ent->device & 0xFF; 1902 1903 /* range check to make sure */ 1904 if (ent->driver_data < ARRAY_SIZE(r128_family)) 1905 strlcat(video_card, r128_family[ent->driver_data], 1906 sizeof(video_card)); 1907 1908 printk(KERN_INFO "aty128fb: %s [chip rev 0x%x] ", video_card, chip_rev); 1909 1910 if (par->vram_size % (1024 * 1024) == 0) 1911 printk("%dM %s\n", par->vram_size / (1024*1024), par->mem->name); 1912 else 1913 printk("%dk %s\n", par->vram_size / 1024, par->mem->name); 1914 1915 par->chip_gen = ent->driver_data; 1916 1917 /* fill in info */ 1918 info->fbops = &aty128fb_ops; 1919 info->flags = FBINFO_FLAG_DEFAULT; 1920 1921 par->lcd_on = default_lcd_on; 1922 par->crt_on = default_crt_on; 1923 1924 var = default_var; 1925#ifdef CONFIG_PPC_PMAC 1926 if (machine_is(powermac)) { 1927 /* Indicate sleep capability */ 1928 if (par->chip_gen == rage_M3) { 1929 pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, NULL, 0, 1); 1930#if 0 /* Disable the early video resume hack for now as it's causing problems, 1931 * among others we now rely on the PCI core restoring the config space 1932 * for us, which isn't the case with that hack, and that code path causes 1933 * various things to be called with interrupts off while they shouldn't. 1934 * I'm leaving the code in as it can be useful for debugging purposes 1935 */ 1936 pmac_set_early_video_resume(aty128_early_resume, par); 1937#endif 1938 } 1939 1940 /* Find default mode */ 1941 if (mode_option) { 1942 if (!mac_find_mode(&var, info, mode_option, 8)) 1943 var = default_var; 1944 } else { 1945 if (default_vmode <= 0 || default_vmode > VMODE_MAX) 1946 default_vmode = VMODE_1024_768_60; 1947 1948 /* iMacs need that resolution 1949 * PowerMac2,1 first r128 iMacs 1950 * PowerMac2,2 summer 2000 iMacs 1951 * PowerMac4,1 january 2001 iMacs "flower power" 1952 */ 1953 if (of_machine_is_compatible("PowerMac2,1") || 1954 of_machine_is_compatible("PowerMac2,2") || 1955 of_machine_is_compatible("PowerMac4,1")) 1956 default_vmode = VMODE_1024_768_75; 1957 1958 /* iBook SE */ 1959 if (of_machine_is_compatible("PowerBook2,2")) 1960 default_vmode = VMODE_800_600_60; 1961 1962 /* PowerBook Firewire (Pismo), iBook Dual USB */ 1963 if (of_machine_is_compatible("PowerBook3,1") || 1964 of_machine_is_compatible("PowerBook4,1")) 1965 default_vmode = VMODE_1024_768_60; 1966 1967 /* PowerBook Titanium */ 1968 if (of_machine_is_compatible("PowerBook3,2")) 1969 default_vmode = VMODE_1152_768_60; 1970 1971 if (default_cmode > 16) 1972 default_cmode = CMODE_32; 1973 else if (default_cmode > 8) 1974 default_cmode = CMODE_16; 1975 else 1976 default_cmode = CMODE_8; 1977 1978 if (mac_vmode_to_var(default_vmode, default_cmode, &var)) 1979 var = default_var; 1980 } 1981 } else 1982#endif /* CONFIG_PPC_PMAC */ 1983 { 1984 if (mode_option) 1985 if (fb_find_mode(&var, info, mode_option, NULL, 1986 0, &defaultmode, 8) == 0) 1987 var = default_var; 1988 } 1989 1990 var.accel_flags &= ~FB_ACCELF_TEXT; 1991// var.accel_flags |= FB_ACCELF_TEXT;/* FIXME Will add accel later */ 1992 1993 if (aty128fb_check_var(&var, info)) { 1994 printk(KERN_ERR "aty128fb: Cannot set default mode.\n"); 1995 return 0; 1996 } 1997 1998 /* setup the DAC the way we like it */ 1999 dac = aty_ld_le32(DAC_CNTL); 2000 dac |= (DAC_8BIT_EN | DAC_RANGE_CNTL); 2001 dac |= DAC_MASK; 2002 if (par->chip_gen == rage_M3) 2003 dac |= DAC_PALETTE2_SNOOP_EN; 2004 aty_st_le32(DAC_CNTL, dac); 2005 2006 /* turn off bus mastering, just in case */ 2007 aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL) | BUS_MASTER_DIS); 2008 2009 info->var = var; 2010 fb_alloc_cmap(&info->cmap, 256, 0); 2011 2012 var.activate = FB_ACTIVATE_NOW; 2013 2014 aty128_init_engine(par); 2015 2016 par->pdev = pdev; 2017 par->asleep = 0; 2018 par->lock_blank = 0; 2019 2020#ifdef CONFIG_FB_ATY128_BACKLIGHT 2021 if (backlight) 2022 aty128_bl_init(par); 2023#endif 2024 2025 if (register_framebuffer(info) < 0) 2026 return 0; 2027 2028 fb_info(info, "%s frame buffer device on %s\n", 2029 info->fix.id, video_card); 2030 2031 return 1; /* success! */ 2032} 2033 2034#ifdef CONFIG_PCI 2035/* register a card ++ajoshi */ 2036static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 2037{ 2038 unsigned long fb_addr, reg_addr; 2039 struct aty128fb_par *par; 2040 struct fb_info *info; 2041 int err; 2042#ifndef __sparc__ 2043 void __iomem *bios = NULL; 2044#endif 2045 2046 /* Enable device in PCI config */ 2047 if ((err = pci_enable_device(pdev))) { 2048 printk(KERN_ERR "aty128fb: Cannot enable PCI device: %d\n", 2049 err); 2050 return -ENODEV; 2051 } 2052 2053 fb_addr = pci_resource_start(pdev, 0); 2054 if (!request_mem_region(fb_addr, pci_resource_len(pdev, 0), 2055 "aty128fb FB")) { 2056 printk(KERN_ERR "aty128fb: cannot reserve frame " 2057 "buffer memory\n"); 2058 return -ENODEV; 2059 } 2060 2061 reg_addr = pci_resource_start(pdev, 2); 2062 if (!request_mem_region(reg_addr, pci_resource_len(pdev, 2), 2063 "aty128fb MMIO")) { 2064 printk(KERN_ERR "aty128fb: cannot reserve MMIO region\n"); 2065 goto err_free_fb; 2066 } 2067 2068 /* We have the resources. Now virtualize them */ 2069 info = framebuffer_alloc(sizeof(struct aty128fb_par), &pdev->dev); 2070 if (info == NULL) { 2071 printk(KERN_ERR "aty128fb: can't alloc fb_info_aty128\n"); 2072 goto err_free_mmio; 2073 } 2074 par = info->par; 2075 2076 info->pseudo_palette = par->pseudo_palette; 2077 2078 /* Virtualize mmio region */ 2079 info->fix.mmio_start = reg_addr; 2080 par->regbase = pci_ioremap_bar(pdev, 2); 2081 if (!par->regbase) 2082 goto err_free_info; 2083 2084 /* Grab memory size from the card */ 2085 // How does this relate to the resource length from the PCI hardware? 2086 par->vram_size = aty_ld_le32(CNFG_MEMSIZE) & 0x03FFFFFF; 2087 2088 /* Virtualize the framebuffer */ 2089 info->screen_base = ioremap(fb_addr, par->vram_size); 2090 if (!info->screen_base) 2091 goto err_unmap_out; 2092 2093 /* Set up info->fix */ 2094 info->fix = aty128fb_fix; 2095 info->fix.smem_start = fb_addr; 2096 info->fix.smem_len = par->vram_size; 2097 info->fix.mmio_start = reg_addr; 2098 2099 /* If we can't test scratch registers, something is seriously wrong */ 2100 if (!register_test(par)) { 2101 printk(KERN_ERR "aty128fb: Can't write to video register!\n"); 2102 goto err_out; 2103 } 2104 2105#ifndef __sparc__ 2106 bios = aty128_map_ROM(par, pdev); 2107#ifdef CONFIG_X86 2108 if (bios == NULL) 2109 bios = aty128_find_mem_vbios(par); 2110#endif 2111 if (bios == NULL) 2112 printk(KERN_INFO "aty128fb: BIOS not located, guessing timings.\n"); 2113 else { 2114 printk(KERN_INFO "aty128fb: Rage128 BIOS located\n"); 2115 aty128_get_pllinfo(par, bios); 2116 pci_unmap_rom(pdev, bios); 2117 } 2118#endif /* __sparc__ */ 2119 2120 aty128_timings(par); 2121 pci_set_drvdata(pdev, info); 2122 2123 if (!aty128_init(pdev, ent)) 2124 goto err_out; 2125 2126#ifdef CONFIG_MTRR 2127 if (mtrr) { 2128 par->mtrr.vram = mtrr_add(info->fix.smem_start, 2129 par->vram_size, MTRR_TYPE_WRCOMB, 1); 2130 par->mtrr.vram_valid = 1; 2131 /* let there be speed */ 2132 printk(KERN_INFO "aty128fb: Rage128 MTRR set to ON\n"); 2133 } 2134#endif /* CONFIG_MTRR */ 2135 return 0; 2136 2137err_out: 2138 iounmap(info->screen_base); 2139err_unmap_out: 2140 iounmap(par->regbase); 2141err_free_info: 2142 framebuffer_release(info); 2143err_free_mmio: 2144 release_mem_region(pci_resource_start(pdev, 2), 2145 pci_resource_len(pdev, 2)); 2146err_free_fb: 2147 release_mem_region(pci_resource_start(pdev, 0), 2148 pci_resource_len(pdev, 0)); 2149 return -ENODEV; 2150} 2151 2152static void aty128_remove(struct pci_dev *pdev) 2153{ 2154 struct fb_info *info = pci_get_drvdata(pdev); 2155 struct aty128fb_par *par; 2156 2157 if (!info) 2158 return; 2159 2160 par = info->par; 2161 2162 unregister_framebuffer(info); 2163 2164#ifdef CONFIG_FB_ATY128_BACKLIGHT 2165 aty128_bl_exit(info->bl_dev); 2166#endif 2167 2168#ifdef CONFIG_MTRR 2169 if (par->mtrr.vram_valid) 2170 mtrr_del(par->mtrr.vram, info->fix.smem_start, 2171 par->vram_size); 2172#endif /* CONFIG_MTRR */ 2173 iounmap(par->regbase); 2174 iounmap(info->screen_base); 2175 2176 release_mem_region(pci_resource_start(pdev, 0), 2177 pci_resource_len(pdev, 0)); 2178 release_mem_region(pci_resource_start(pdev, 2), 2179 pci_resource_len(pdev, 2)); 2180 framebuffer_release(info); 2181} 2182#endif /* CONFIG_PCI */ 2183 2184 2185 2186 /* 2187 * Blank the display. 2188 */ 2189static int aty128fb_blank(int blank, struct fb_info *fb) 2190{ 2191 struct aty128fb_par *par = fb->par; 2192 u8 state; 2193 2194 if (par->lock_blank || par->asleep) 2195 return 0; 2196 2197 switch (blank) { 2198 case FB_BLANK_NORMAL: 2199 state = 4; 2200 break; 2201 case FB_BLANK_VSYNC_SUSPEND: 2202 state = 6; 2203 break; 2204 case FB_BLANK_HSYNC_SUSPEND: 2205 state = 5; 2206 break; 2207 case FB_BLANK_POWERDOWN: 2208 state = 7; 2209 break; 2210 case FB_BLANK_UNBLANK: 2211 default: 2212 state = 0; 2213 break; 2214 } 2215 aty_st_8(CRTC_EXT_CNTL+1, state); 2216 2217 if (par->chip_gen == rage_M3) { 2218 aty128_set_crt_enable(par, par->crt_on && !blank); 2219 aty128_set_lcd_enable(par, par->lcd_on && !blank); 2220 } 2221 2222 return 0; 2223} 2224 2225/* 2226 * Set a single color register. The values supplied are already 2227 * rounded down to the hardware's capabilities (according to the 2228 * entries in the var structure). Return != 0 for invalid regno. 2229 */ 2230static int aty128fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, 2231 u_int transp, struct fb_info *info) 2232{ 2233 struct aty128fb_par *par = info->par; 2234 2235 if (regno > 255 2236 || (par->crtc.depth == 16 && regno > 63) 2237 || (par->crtc.depth == 15 && regno > 31)) 2238 return 1; 2239 2240 red >>= 8; 2241 green >>= 8; 2242 blue >>= 8; 2243 2244 if (regno < 16) { 2245 int i; 2246 u32 *pal = info->pseudo_palette; 2247 2248 switch (par->crtc.depth) { 2249 case 15: 2250 pal[regno] = (regno << 10) | (regno << 5) | regno; 2251 break; 2252 case 16: 2253 pal[regno] = (regno << 11) | (regno << 6) | regno; 2254 break; 2255 case 24: 2256 pal[regno] = (regno << 16) | (regno << 8) | regno; 2257 break; 2258 case 32: 2259 i = (regno << 8) | regno; 2260 pal[regno] = (i << 16) | i; 2261 break; 2262 } 2263 } 2264 2265 if (par->crtc.depth == 16 && regno > 0) { 2266 /* 2267 * With the 5-6-5 split of bits for RGB at 16 bits/pixel, we 2268 * have 32 slots for R and B values but 64 slots for G values. 2269 * Thus the R and B values go in one slot but the G value 2270 * goes in a different slot, and we have to avoid disturbing 2271 * the other fields in the slots we touch. 2272 */ 2273 par->green[regno] = green; 2274 if (regno < 32) { 2275 par->red[regno] = red; 2276 par->blue[regno] = blue; 2277 aty128_st_pal(regno * 8, red, par->green[regno*2], 2278 blue, par); 2279 } 2280 red = par->red[regno/2]; 2281 blue = par->blue[regno/2]; 2282 regno <<= 2; 2283 } else if (par->crtc.bpp == 16) 2284 regno <<= 3; 2285 aty128_st_pal(regno, red, green, blue, par); 2286 2287 return 0; 2288} 2289 2290#define ATY_MIRROR_LCD_ON 0x00000001 2291#define ATY_MIRROR_CRT_ON 0x00000002 2292 2293/* out param: u32* backlight value: 0 to 15 */ 2294#define FBIO_ATY128_GET_MIRROR _IOR('@', 1, __u32) 2295/* in param: u32* backlight value: 0 to 15 */ 2296#define FBIO_ATY128_SET_MIRROR _IOW('@', 2, __u32) 2297 2298static int aty128fb_ioctl(struct fb_info *info, u_int cmd, u_long arg) 2299{ 2300 struct aty128fb_par *par = info->par; 2301 u32 value; 2302 int rc; 2303 2304 switch (cmd) { 2305 case FBIO_ATY128_SET_MIRROR: 2306 if (par->chip_gen != rage_M3) 2307 return -EINVAL; 2308 rc = get_user(value, (__u32 __user *)arg); 2309 if (rc) 2310 return rc; 2311 par->lcd_on = (value & 0x01) != 0; 2312 par->crt_on = (value & 0x02) != 0; 2313 if (!par->crt_on && !par->lcd_on) 2314 par->lcd_on = 1; 2315 aty128_set_crt_enable(par, par->crt_on); 2316 aty128_set_lcd_enable(par, par->lcd_on); 2317 return 0; 2318 case FBIO_ATY128_GET_MIRROR: 2319 if (par->chip_gen != rage_M3) 2320 return -EINVAL; 2321 value = (par->crt_on << 1) | par->lcd_on; 2322 return put_user(value, (__u32 __user *)arg); 2323 } 2324 return -EINVAL; 2325} 2326 2327#if 0 2328 /* 2329 * Accelerated functions 2330 */ 2331 2332static inline void aty128_rectcopy(int srcx, int srcy, int dstx, int dsty, 2333 u_int width, u_int height, 2334 struct fb_info_aty128 *par) 2335{ 2336 u32 save_dp_datatype, save_dp_cntl, dstval; 2337 2338 if (!width || !height) 2339 return; 2340 2341 dstval = depth_to_dst(par->current_par.crtc.depth); 2342 if (dstval == DST_24BPP) { 2343 srcx *= 3; 2344 dstx *= 3; 2345 width *= 3; 2346 } else if (dstval == -EINVAL) { 2347 printk("aty128fb: invalid depth or RGBA\n"); 2348 return; 2349 } 2350 2351 wait_for_fifo(2, par); 2352 save_dp_datatype = aty_ld_le32(DP_DATATYPE); 2353 save_dp_cntl = aty_ld_le32(DP_CNTL); 2354 2355 wait_for_fifo(6, par); 2356 aty_st_le32(SRC_Y_X, (srcy << 16) | srcx); 2357 aty_st_le32(DP_MIX, ROP3_SRCCOPY | DP_SRC_RECT); 2358 aty_st_le32(DP_CNTL, DST_X_LEFT_TO_RIGHT | DST_Y_TOP_TO_BOTTOM); 2359 aty_st_le32(DP_DATATYPE, save_dp_datatype | dstval | SRC_DSTCOLOR); 2360 2361 aty_st_le32(DST_Y_X, (dsty << 16) | dstx); 2362 aty_st_le32(DST_HEIGHT_WIDTH, (height << 16) | width); 2363 2364 par->blitter_may_be_busy = 1; 2365 2366 wait_for_fifo(2, par); 2367 aty_st_le32(DP_DATATYPE, save_dp_datatype); 2368 aty_st_le32(DP_CNTL, save_dp_cntl); 2369} 2370 2371 2372 /* 2373 * Text mode accelerated functions 2374 */ 2375 2376static void fbcon_aty128_bmove(struct display *p, int sy, int sx, int dy, 2377 int dx, int height, int width) 2378{ 2379 sx *= fontwidth(p); 2380 sy *= fontheight(p); 2381 dx *= fontwidth(p); 2382 dy *= fontheight(p); 2383 width *= fontwidth(p); 2384 height *= fontheight(p); 2385 2386 aty128_rectcopy(sx, sy, dx, dy, width, height, 2387 (struct fb_info_aty128 *)p->fb_info); 2388} 2389#endif /* 0 */ 2390 2391static void aty128_set_suspend(struct aty128fb_par *par, int suspend) 2392{ 2393 u32 pmgt; 2394 struct pci_dev *pdev = par->pdev; 2395 2396 if (!par->pdev->pm_cap) 2397 return; 2398 2399 /* Set the chip into the appropriate suspend mode (we use D2, 2400 * D3 would require a complete re-initialisation of the chip, 2401 * including PCI config registers, clocks, AGP configuration, ...) 2402 * 2403 * For resume, the core will have already brought us back to D0 2404 */ 2405 if (suspend) { 2406 /* Make sure CRTC2 is reset. Remove that the day we decide to 2407 * actually use CRTC2 and replace it with real code for disabling 2408 * the CRTC2 output during sleep 2409 */ 2410 aty_st_le32(CRTC2_GEN_CNTL, aty_ld_le32(CRTC2_GEN_CNTL) & 2411 ~(CRTC2_EN)); 2412 2413 /* Set the power management mode to be PCI based */ 2414 /* Use this magic value for now */ 2415 pmgt = 0x0c005407; 2416 aty_st_pll(POWER_MANAGEMENT, pmgt); 2417 (void)aty_ld_pll(POWER_MANAGEMENT); 2418 aty_st_le32(BUS_CNTL1, 0x00000010); 2419 aty_st_le32(MEM_POWER_MISC, 0x0c830000); 2420 mdelay(100); 2421 2422 /* Switch PCI power management to D2 */ 2423 pci_set_power_state(pdev, PCI_D2); 2424 } 2425} 2426 2427static int aty128_pci_suspend(struct pci_dev *pdev, pm_message_t state) 2428{ 2429 struct fb_info *info = pci_get_drvdata(pdev); 2430 struct aty128fb_par *par = info->par; 2431 2432 /* Because we may change PCI D state ourselves, we need to 2433 * first save the config space content so the core can 2434 * restore it properly on resume. 2435 */ 2436 pci_save_state(pdev); 2437 2438 /* We don't do anything but D2, for now we return 0, but 2439 * we may want to change that. How do we know if the BIOS 2440 * can properly take care of D3 ? Also, with swsusp, we 2441 * know we'll be rebooted, ... 2442 */ 2443#ifndef CONFIG_PPC_PMAC 2444 /* HACK ALERT ! Once I find a proper way to say to each driver 2445 * individually what will happen with it's PCI slot, I'll change 2446 * that. On laptops, the AGP slot is just unclocked, so D2 is 2447 * expected, while on desktops, the card is powered off 2448 */ 2449 return 0; 2450#endif /* CONFIG_PPC_PMAC */ 2451 2452 if (state.event == pdev->dev.power.power_state.event) 2453 return 0; 2454 2455 printk(KERN_DEBUG "aty128fb: suspending...\n"); 2456 2457 console_lock(); 2458 2459 fb_set_suspend(info, 1); 2460 2461 /* Make sure engine is reset */ 2462 wait_for_idle(par); 2463 aty128_reset_engine(par); 2464 wait_for_idle(par); 2465 2466 /* Blank display and LCD */ 2467 aty128fb_blank(FB_BLANK_POWERDOWN, info); 2468 2469 /* Sleep */ 2470 par->asleep = 1; 2471 par->lock_blank = 1; 2472 2473#ifdef CONFIG_PPC_PMAC 2474 /* On powermac, we have hooks to properly suspend/resume AGP now, 2475 * use them here. We'll ultimately need some generic support here, 2476 * but the generic code isn't quite ready for that yet 2477 */ 2478 pmac_suspend_agp_for_card(pdev); 2479#endif /* CONFIG_PPC_PMAC */ 2480 2481 /* We need a way to make sure the fbdev layer will _not_ touch the 2482 * framebuffer before we put the chip to suspend state. On 2.4, I 2483 * used dummy fb ops, 2.5 need proper support for this at the 2484 * fbdev level 2485 */ 2486 if (state.event != PM_EVENT_ON) 2487 aty128_set_suspend(par, 1); 2488 2489 console_unlock(); 2490 2491 pdev->dev.power.power_state = state; 2492 2493 return 0; 2494} 2495 2496static int aty128_do_resume(struct pci_dev *pdev) 2497{ 2498 struct fb_info *info = pci_get_drvdata(pdev); 2499 struct aty128fb_par *par = info->par; 2500 2501 if (pdev->dev.power.power_state.event == PM_EVENT_ON) 2502 return 0; 2503 2504 /* PCI state will have been restored by the core, so 2505 * we should be in D0 now with our config space fully 2506 * restored 2507 */ 2508 2509 /* Wakeup chip */ 2510 aty128_set_suspend(par, 0); 2511 par->asleep = 0; 2512 2513 /* Restore display & engine */ 2514 aty128_reset_engine(par); 2515 wait_for_idle(par); 2516 aty128fb_set_par(info); 2517 fb_pan_display(info, &info->var); 2518 fb_set_cmap(&info->cmap, info); 2519 2520 /* Refresh */ 2521 fb_set_suspend(info, 0); 2522 2523 /* Unblank */ 2524 par->lock_blank = 0; 2525 aty128fb_blank(0, info); 2526 2527#ifdef CONFIG_PPC_PMAC 2528 /* On powermac, we have hooks to properly suspend/resume AGP now, 2529 * use them here. We'll ultimately need some generic support here, 2530 * but the generic code isn't quite ready for that yet 2531 */ 2532 pmac_resume_agp_for_card(pdev); 2533#endif /* CONFIG_PPC_PMAC */ 2534 2535 pdev->dev.power.power_state = PMSG_ON; 2536 2537 printk(KERN_DEBUG "aty128fb: resumed !\n"); 2538 2539 return 0; 2540} 2541 2542static int aty128_pci_resume(struct pci_dev *pdev) 2543{ 2544 int rc; 2545 2546 console_lock(); 2547 rc = aty128_do_resume(pdev); 2548 console_unlock(); 2549 2550 return rc; 2551} 2552 2553 2554static int aty128fb_init(void) 2555{ 2556#ifndef MODULE 2557 char *option = NULL; 2558 2559 if (fb_get_options("aty128fb", &option)) 2560 return -ENODEV; 2561 aty128fb_setup(option); 2562#endif 2563 2564 return pci_register_driver(&aty128fb_driver); 2565} 2566 2567static void __exit aty128fb_exit(void) 2568{ 2569 pci_unregister_driver(&aty128fb_driver); 2570} 2571 2572module_init(aty128fb_init); 2573 2574module_exit(aty128fb_exit); 2575 2576MODULE_AUTHOR("(c)1999-2003 Brad Douglas <brad@neruo.com>"); 2577MODULE_DESCRIPTION("FBDev driver for ATI Rage128 / Pro cards"); 2578MODULE_LICENSE("GPL"); 2579module_param(mode_option, charp, 0); 2580MODULE_PARM_DESC(mode_option, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); 2581#ifdef CONFIG_MTRR 2582module_param_named(nomtrr, mtrr, invbool, 0); 2583MODULE_PARM_DESC(nomtrr, "bool: Disable MTRR support (0 or 1=disabled) (default=0)"); 2584#endif 2585 2586