git.oblomov.eu Git - linux-2.6/blob - drivers/video/aty/atyfb_base.c

   1 /*
   2  *  ATI Frame Buffer Device Driver Core
   3  *
   4  *      Copyright (C) 2004  Alex Kern <alex.kern@gmx.de>
   5  *      Copyright (C) 1997-2001  Geert Uytterhoeven
   6  *      Copyright (C) 1998  Bernd Harries
   7  *      Copyright (C) 1998  Eddie C. Dost  (ecd@skynet.be)
   8  *
   9  *  This driver supports the following ATI graphics chips:
  10  *    - ATI Mach64
  11  *
  12  *  To do: add support for
  13  *    - ATI Rage128 (from aty128fb.c)
  14  *    - ATI Radeon (from radeonfb.c)
  15  *
  16  *  This driver is partly based on the PowerMac console driver:
  17  *
  18  *      Copyright (C) 1996 Paul Mackerras
  19  *
  20  *  and on the PowerMac ATI/mach64 display driver:
  21  *
  22  *      Copyright (C) 1997 Michael AK Tesch
  23  *
  24  *            with work by Jon Howell
  25  *                         Harry AC Eaton
  26  *                         Anthony Tong <atong@uiuc.edu>
  27  *
  28  *  Generic LCD support written by Daniel Mantione, ported from 2.4.20 by Alex Kern
  29  *  Many Thanks to Ville Syrjälä for patches and fixing nasting 16 bit color bug.
  30  *
  31  *  This file is subject to the terms and conditions of the GNU General Public
  32  *  License. See the file COPYING in the main directory of this archive for
  33  *  more details.
  34  *
  35  *  Many thanks to Nitya from ATI devrel for support and patience !
  36  */
  37
  38 /******************************************************************************
  39
  40   TODO:
  41
  42     - cursor support on all cards and all ramdacs.
  43     - cursor parameters controlable via ioctl()s.
  44     - guess PLL and MCLK based on the original PLL register values initialized
  45       by Open Firmware (if they are initialized). BIOS is done
  46
  47     (Anyone with Mac to help with this?)
  48
  49 ******************************************************************************/
  50
  51
  52 #include <linux/module.h>
  53 #include <linux/moduleparam.h>
  54 #include <linux/kernel.h>
  55 #include <linux/errno.h>
  56 #include <linux/string.h>
  57 #include <linux/mm.h>
  58 #include <linux/slab.h>
  59 #include <linux/vmalloc.h>
  60 #include <linux/delay.h>
  61 #include <linux/console.h>
  62 #include <linux/fb.h>
  63 #include <linux/init.h>
  64 #include <linux/pci.h>
  65 #include <linux/interrupt.h>
  66 #include <linux/spinlock.h>
  67 #include <linux/wait.h>
  68 #include <linux/backlight.h>
  69
  70 #include <asm/io.h>
  71 #include <linux/uaccess.h>
  72
  73 #include <video/mach64.h>
  74 #include "atyfb.h"
  75 #include "ati_ids.h"
  76
  77 #ifdef __powerpc__
  78 #include <asm/machdep.h>
  79 #include <asm/prom.h>
  80 #include "../macmodes.h"
  81 #endif
  82 #ifdef __sparc__
  83 #include <asm/fbio.h>
  84 #include <asm/oplib.h>
  85 #include <asm/prom.h>
  86 #endif
  87
  88 #ifdef CONFIG_ADB_PMU
  89 #include <linux/adb.h>
  90 #include <linux/pmu.h>
  91 #endif
  92 #ifdef CONFIG_BOOTX_TEXT
  93 #include <asm/btext.h>
  94 #endif
  95 #ifdef CONFIG_PMAC_BACKLIGHT
  96 #include <asm/backlight.h>
  97 #endif
  98 #ifdef CONFIG_MTRR
  99 #include <asm/mtrr.h>
 100 #endif
 101
 102 /*
 103  * Debug flags.
 104  */
 105 #undef DEBUG
 106 /*#define DEBUG*/
 107
 108 /* Make sure n * PAGE_SIZE is protected at end of Aperture for GUI-regs */
 109 /*  - must be large enough to catch all GUI-Regs   */
 110 /*  - must be aligned to a PAGE boundary           */
 111 #define GUI_RESERVE     (1 * PAGE_SIZE)
 112
 113 /* FIXME: remove the FAIL definition */
 114 #define FAIL(msg) do { \
 115         if (!(var->activate & FB_ACTIVATE_TEST)) \
 116                 printk(KERN_CRIT "atyfb: " msg "\n"); \
 117         return -EINVAL; \
 118 } while (0)
 119 #define FAIL_MAX(msg, x, _max_) do { \
 120         if (x > _max_) { \
 121                 if (!(var->activate & FB_ACTIVATE_TEST)) \
 122                         printk(KERN_CRIT "atyfb: " msg " %x(%x)\n", x, _max_); \
 123                 return -EINVAL; \
 124         } \
 125 } while (0)
 126 #ifdef DEBUG
 127 #define DPRINTK(fmt, args...)   printk(KERN_DEBUG "atyfb: " fmt, ## args)
 128 #else
 129 #define DPRINTK(fmt, args...)
 130 #endif
 131
 132 #define PRINTKI(fmt, args...)   printk(KERN_INFO "atyfb: " fmt, ## args)
 133 #define PRINTKE(fmt, args...)    printk(KERN_ERR "atyfb: " fmt, ## args)
 134
 135 #if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || \
 136 defined (CONFIG_FB_ATY_GENERIC_LCD) || defined(CONFIG_FB_ATY_BACKLIGHT)
 137 static const u32 lt_lcd_regs[] = {
 138         CONFIG_PANEL_LG,
 139         LCD_GEN_CNTL_LG,
 140         DSTN_CONTROL_LG,
 141         HFB_PITCH_ADDR_LG,
 142         HORZ_STRETCHING_LG,
 143         VERT_STRETCHING_LG,
 144         0, /* EXT_VERT_STRETCH */
 145         LT_GIO_LG,
 146         POWER_MANAGEMENT_LG
 147 };
 148
 149 void aty_st_lcd(int index, u32 val, const struct atyfb_par *par)
 150 {
 151         if (M64_HAS(LT_LCD_REGS)) {
 152                 aty_st_le32(lt_lcd_regs[index], val, par);
 153         } else {
 154                 unsigned long temp;
 155
 156                 /* write addr byte */
 157                 temp = aty_ld_le32(LCD_INDEX, par);
 158                 aty_st_le32(LCD_INDEX, (temp & ~LCD_INDEX_MASK) | index, par);
 159                 /* write the register value */
 160                 aty_st_le32(LCD_DATA, val, par);
 161         }
 162 }
 163
 164 u32 aty_ld_lcd(int index, const struct atyfb_par *par)
 165 {
 166         if (M64_HAS(LT_LCD_REGS)) {
 167                 return aty_ld_le32(lt_lcd_regs[index], par);
 168         } else {
 169                 unsigned long temp;
 170
 171                 /* write addr byte */
 172                 temp = aty_ld_le32(LCD_INDEX, par);
 173                 aty_st_le32(LCD_INDEX, (temp & ~LCD_INDEX_MASK) | index, par);
 174                 /* read the register value */
 175                 return aty_ld_le32(LCD_DATA, par);
 176         }
 177 }
 178 #endif /* defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD) */
 179
 180 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 181 /*
 182  * ATIReduceRatio --
 183  *
 184  * Reduce a fraction by factoring out the largest common divider of the
 185  * fraction's numerator and denominator.
 186  */
 187 static void ATIReduceRatio(int *Numerator, int *Denominator)
 188 {
 189     int Multiplier, Divider, Remainder;
 190
 191     Multiplier = *Numerator;
 192     Divider = *Denominator;
 193
 194     while ((Remainder = Multiplier % Divider))
 195     {
 196         Multiplier = Divider;
 197         Divider = Remainder;
 198     }
 199
 200     *Numerator /= Divider;
 201     *Denominator /= Divider;
 202 }
 203 #endif
 204     /*
 205      *  The Hardware parameters for each card
 206      */
 207
 208 struct pci_mmap_map {
 209         unsigned long voff;
 210         unsigned long poff;
 211         unsigned long size;
 212         unsigned long prot_flag;
 213         unsigned long prot_mask;
 214 };
 215
 216 static struct fb_fix_screeninfo atyfb_fix __devinitdata = {
 217         .id             = "ATY Mach64",
 218         .type           = FB_TYPE_PACKED_PIXELS,
 219         .visual         = FB_VISUAL_PSEUDOCOLOR,
 220         .xpanstep       = 8,
 221         .ypanstep       = 1,
 222 };
 223
 224     /*
 225      *  Frame buffer device API
 226      */
 227
 228 static int atyfb_open(struct fb_info *info, int user);
 229 static int atyfb_release(struct fb_info *info, int user);
 230 static int atyfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info);
 231 static int atyfb_set_par(struct fb_info *info);
 232 static int atyfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 233         u_int transp, struct fb_info *info);
 234 static int atyfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info);
 235 static int atyfb_blank(int blank, struct fb_info *info);
 236 static int atyfb_ioctl(struct fb_info *info, u_int cmd, u_long arg);
 237 #ifdef __sparc__
 238 static int atyfb_mmap(struct fb_info *info, struct vm_area_struct *vma);
 239 #endif
 240 static int atyfb_sync(struct fb_info *info);
 241
 242     /*
 243      *  Internal routines
 244      */
 245
 246 static int aty_init(struct fb_info *info);
 247
 248 #ifdef CONFIG_ATARI
 249 static int store_video_par(char *videopar, unsigned char m64_num);
 250 #endif
 251
 252 static struct crtc saved_crtc;
 253 static union aty_pll saved_pll;
 254 static void aty_get_crtc(const struct atyfb_par *par, struct crtc *crtc);
 255
 256 static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc);
 257 static int aty_var_to_crtc(const struct fb_info *info, const struct fb_var_screeninfo *var, struct crtc *crtc);
 258 static int aty_crtc_to_var(const struct crtc *crtc, struct fb_var_screeninfo *var);
 259 static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info);
 260 #ifdef CONFIG_PPC
 261 static int read_aty_sense(const struct atyfb_par *par);
 262 #endif
 263
 264
 265     /*
 266      *  Interface used by the world
 267      */
 268
 269 static struct fb_var_screeninfo default_var = {
 270         /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
 271         640, 480, 640, 480, 0, 0, 8, 0,
 272         {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
 273         0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2,
 274         0, FB_VMODE_NONINTERLACED
 275 };
 276
 277 static struct fb_videomode defmode = {
 278         /* 640x480 @ 60 Hz, 31.5 kHz hsync */
 279         NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
 280         0, FB_VMODE_NONINTERLACED
 281 };
 282
 283 static struct fb_ops atyfb_ops = {
 284         .owner          = THIS_MODULE,
 285         .fb_open        = atyfb_open,
 286         .fb_release     = atyfb_release,
 287         .fb_check_var   = atyfb_check_var,
 288         .fb_set_par     = atyfb_set_par,
 289         .fb_setcolreg   = atyfb_setcolreg,
 290         .fb_pan_display = atyfb_pan_display,
 291         .fb_blank       = atyfb_blank,
 292         .fb_ioctl       = atyfb_ioctl,
 293         .fb_fillrect    = atyfb_fillrect,
 294         .fb_copyarea    = atyfb_copyarea,
 295         .fb_imageblit   = atyfb_imageblit,
 296 #ifdef __sparc__
 297         .fb_mmap        = atyfb_mmap,
 298 #endif
 299         .fb_sync        = atyfb_sync,
 300 };
 301
 302 static int noaccel;
 303 #ifdef CONFIG_MTRR
 304 static int nomtrr;
 305 #endif
 306 static int vram;
 307 static int pll;
 308 static int mclk;
 309 static int xclk;
 310 static int comp_sync __devinitdata = -1;
 311 static char *mode;
 312
 313 #ifdef CONFIG_PMAC_BACKLIGHT
 314 static int backlight __devinitdata = 1;
 315 #else
 316 static int backlight __devinitdata = 0;
 317 #endif
 318
 319 #ifdef CONFIG_PPC
 320 static int default_vmode __devinitdata = VMODE_CHOOSE;
 321 static int default_cmode __devinitdata = CMODE_CHOOSE;
 322
 323 module_param_named(vmode, default_vmode, int, 0);
 324 MODULE_PARM_DESC(vmode, "int: video mode for mac");
 325 module_param_named(cmode, default_cmode, int, 0);
 326 MODULE_PARM_DESC(cmode, "int: color mode for mac");
 327 #endif
 328
 329 #ifdef CONFIG_ATARI
 330 static unsigned int mach64_count __devinitdata = 0;
 331 static unsigned long phys_vmembase[FB_MAX] __devinitdata = { 0, };
 332 static unsigned long phys_size[FB_MAX] __devinitdata = { 0, };
 333 static unsigned long phys_guiregbase[FB_MAX] __devinitdata = { 0, };
 334 #endif
 335
 336 /* top -> down is an evolution of mach64 chipset, any corrections? */
 337 #define ATI_CHIP_88800GX   (M64F_GX)
 338 #define ATI_CHIP_88800CX   (M64F_GX)
 339
 340 #define ATI_CHIP_264CT     (M64F_CT | M64F_INTEGRATED | M64F_CT_BUS | M64F_MAGIC_FIFO)
 341 #define ATI_CHIP_264ET     (M64F_CT | M64F_INTEGRATED | M64F_CT_BUS | M64F_MAGIC_FIFO)
 342
 343 #define ATI_CHIP_264VT     (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_MAGIC_FIFO)
 344 #define ATI_CHIP_264GT     (M64F_GT | M64F_INTEGRATED               | M64F_MAGIC_FIFO | M64F_EXTRA_BRIGHT)
 345
 346 #define ATI_CHIP_264VTB    (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_GTB_DSP)
 347 #define ATI_CHIP_264VT3    (M64F_VT | M64F_INTEGRATED | M64F_VT_BUS | M64F_GTB_DSP | M64F_SDRAM_MAGIC_PLL)
 348 #define ATI_CHIP_264VT4    (M64F_VT | M64F_INTEGRATED               | M64F_GTB_DSP)
 349
 350 /* FIXME what is this chip? */
 351 #define ATI_CHIP_264LT     (M64F_GT | M64F_INTEGRATED               | M64F_GTB_DSP)
 352
 353 /* make sets shorter */
 354 #define ATI_MODERN_SET     (M64F_GT | M64F_INTEGRATED               | M64F_GTB_DSP | M64F_EXTRA_BRIGHT)
 355
 356 #define ATI_CHIP_264GTB    (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL)
 357 /*#define ATI_CHIP_264GTDVD  ?*/
 358 #define ATI_CHIP_264LTG    (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL)
 359
 360 #define ATI_CHIP_264GT2C   (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL | M64F_HW_TRIPLE)
 361 #define ATI_CHIP_264GTPRO  (ATI_MODERN_SET | M64F_SDRAM_MAGIC_PLL | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D)
 362 #define ATI_CHIP_264LTPRO  (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D)
 363
 364 #define ATI_CHIP_264XL     (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4)
 365 #define ATI_CHIP_MOBILITY  (ATI_MODERN_SET | M64F_HW_TRIPLE | M64F_FIFO_32 | M64F_RESET_3D | M64F_XL_DLL | M64F_MFB_FORCE_4 | M64F_MOBIL_BUS)
 366
 367 static struct {
 368         u16 pci_id;
 369         const char *name;
 370         int pll, mclk, xclk, ecp_max;
 371         u32 features;
 372 } aty_chips[] __devinitdata = {
 373 #ifdef CONFIG_FB_ATY_GX
 374         /* Mach64 GX */
 375         { PCI_CHIP_MACH64GX, "ATI888GX00 (Mach64 GX)", 135, 50, 50, 0, ATI_CHIP_88800GX },
 376         { PCI_CHIP_MACH64CX, "ATI888CX00 (Mach64 CX)", 135, 50, 50, 0, ATI_CHIP_88800CX },
 377 #endif /* CONFIG_FB_ATY_GX */
 378
 379 #ifdef CONFIG_FB_ATY_CT
 380         { PCI_CHIP_MACH64CT, "ATI264CT (Mach64 CT)", 135, 60, 60, 0, ATI_CHIP_264CT },
 381         { PCI_CHIP_MACH64ET, "ATI264ET (Mach64 ET)", 135, 60, 60, 0, ATI_CHIP_264ET },
 382
 383         /* FIXME what is this chip? */
 384         { PCI_CHIP_MACH64LT, "ATI264LT (Mach64 LT)", 135, 63, 63, 0, ATI_CHIP_264LT },
 385
 386         { PCI_CHIP_MACH64VT, "ATI264VT (Mach64 VT)", 170, 67, 67, 80, ATI_CHIP_264VT },
 387         { PCI_CHIP_MACH64GT, "3D RAGE (Mach64 GT)", 135, 63, 63, 80, ATI_CHIP_264GT },
 388
 389         { PCI_CHIP_MACH64VU, "ATI264VT3 (Mach64 VU)", 200, 67, 67, 80, ATI_CHIP_264VT3 },
 390         { PCI_CHIP_MACH64GU, "3D RAGE II+ (Mach64 GU)", 200, 67, 67, 100, ATI_CHIP_264GTB },
 391
 392         { PCI_CHIP_MACH64LG, "3D RAGE LT (Mach64 LG)", 230, 63, 63, 100, ATI_CHIP_264LTG | M64F_LT_LCD_REGS | M64F_G3_PB_1024x768 },
 393
 394         { PCI_CHIP_MACH64VV, "ATI264VT4 (Mach64 VV)", 230, 83, 83, 100, ATI_CHIP_264VT4 },
 395
 396         { PCI_CHIP_MACH64GV, "3D RAGE IIC (Mach64 GV, PCI)", 230, 83, 83, 100, ATI_CHIP_264GT2C },
 397         { PCI_CHIP_MACH64GW, "3D RAGE IIC (Mach64 GW, AGP)", 230, 83, 83, 100, ATI_CHIP_264GT2C },
 398         { PCI_CHIP_MACH64GY, "3D RAGE IIC (Mach64 GY, PCI)", 230, 83, 83, 100, ATI_CHIP_264GT2C },
 399         { PCI_CHIP_MACH64GZ, "3D RAGE IIC (Mach64 GZ, AGP)", 230, 83, 83, 100, ATI_CHIP_264GT2C },
 400
 401         { PCI_CHIP_MACH64GB, "3D RAGE PRO (Mach64 GB, BGA, AGP)", 230, 100, 100, 125, ATI_CHIP_264GTPRO },
 402         { PCI_CHIP_MACH64GD, "3D RAGE PRO (Mach64 GD, BGA, AGP 1x)", 230, 100, 100, 125, ATI_CHIP_264GTPRO },
 403         { PCI_CHIP_MACH64GI, "3D RAGE PRO (Mach64 GI, BGA, PCI)", 230, 100, 100, 125, ATI_CHIP_264GTPRO | M64F_MAGIC_VRAM_SIZE },
 404         { PCI_CHIP_MACH64GP, "3D RAGE PRO (Mach64 GP, PQFP, PCI)", 230, 100, 100, 125, ATI_CHIP_264GTPRO },
 405         { PCI_CHIP_MACH64GQ, "3D RAGE PRO (Mach64 GQ, PQFP, PCI, limited 3D)", 230, 100, 100, 125, ATI_CHIP_264GTPRO },
 406
 407         { PCI_CHIP_MACH64LB, "3D RAGE LT PRO (Mach64 LB, AGP)", 236, 75, 100, 135, ATI_CHIP_264LTPRO },
 408         { PCI_CHIP_MACH64LD, "3D RAGE LT PRO (Mach64 LD, AGP)", 230, 100, 100, 135, ATI_CHIP_264LTPRO },
 409         { PCI_CHIP_MACH64LI, "3D RAGE LT PRO (Mach64 LI, PCI)", 230, 100, 100, 135, ATI_CHIP_264LTPRO | M64F_G3_PB_1_1 | M64F_G3_PB_1024x768 },
 410         { PCI_CHIP_MACH64LP, "3D RAGE LT PRO (Mach64 LP, PCI)", 230, 100, 100, 135, ATI_CHIP_264LTPRO | M64F_G3_PB_1024x768 },
 411         { PCI_CHIP_MACH64LQ, "3D RAGE LT PRO (Mach64 LQ, PCI)", 230, 100, 100, 135, ATI_CHIP_264LTPRO },
 412
 413         { PCI_CHIP_MACH64GM, "3D RAGE XL (Mach64 GM, AGP 2x)", 230, 83, 63, 135, ATI_CHIP_264XL },
 414         { PCI_CHIP_MACH64GN, "3D RAGE XC (Mach64 GN, AGP 2x)", 230, 83, 63, 135, ATI_CHIP_264XL },
 415         { PCI_CHIP_MACH64GO, "3D RAGE XL (Mach64 GO, PCI-66)", 230, 83, 63, 135, ATI_CHIP_264XL },
 416         { PCI_CHIP_MACH64GL, "3D RAGE XC (Mach64 GL, PCI-66)", 230, 83, 63, 135, ATI_CHIP_264XL },
 417         { PCI_CHIP_MACH64GR, "3D RAGE XL (Mach64 GR, PCI-33)", 230, 83, 63, 135, ATI_CHIP_264XL | M64F_SDRAM_MAGIC_PLL },
 418         { PCI_CHIP_MACH64GS, "3D RAGE XC (Mach64 GS, PCI-33)", 230, 83, 63, 135, ATI_CHIP_264XL },
 419
 420         { PCI_CHIP_MACH64LM, "3D RAGE Mobility P/M (Mach64 LM, AGP 2x)", 230, 83, 125, 135, ATI_CHIP_MOBILITY },
 421         { PCI_CHIP_MACH64LN, "3D RAGE Mobility L (Mach64 LN, AGP 2x)", 230, 83, 125, 135, ATI_CHIP_MOBILITY },
 422         { PCI_CHIP_MACH64LR, "3D RAGE Mobility P/M (Mach64 LR, PCI)", 230, 83, 125, 135, ATI_CHIP_MOBILITY },
 423         { PCI_CHIP_MACH64LS, "3D RAGE Mobility L (Mach64 LS, PCI)", 230, 83, 125, 135, ATI_CHIP_MOBILITY },
 424 #endif /* CONFIG_FB_ATY_CT */
 425 };
 426
 427 static int __devinit correct_chipset(struct atyfb_par *par)
 428 {
 429         u8 rev;
 430         u16 type;
 431         u32 chip_id;
 432         const char *name;
 433         int i;
 434
 435         for (i = ARRAY_SIZE(aty_chips) - 1; i >= 0; i--)
 436                 if (par->pci_id == aty_chips[i].pci_id)
 437                         break;
 438
 439         if (i < 0)
 440                 return -ENODEV;
 441
 442         name = aty_chips[i].name;
 443         par->pll_limits.pll_max = aty_chips[i].pll;
 444         par->pll_limits.mclk = aty_chips[i].mclk;
 445         par->pll_limits.xclk = aty_chips[i].xclk;
 446         par->pll_limits.ecp_max = aty_chips[i].ecp_max;
 447         par->features = aty_chips[i].features;
 448
 449         chip_id = aty_ld_le32(CONFIG_CHIP_ID, par);
 450         type = chip_id & CFG_CHIP_TYPE;
 451         rev = (chip_id & CFG_CHIP_REV) >> 24;
 452
 453         switch(par->pci_id) {
 454 #ifdef CONFIG_FB_ATY_GX
 455         case PCI_CHIP_MACH64GX:
 456                 if(type != 0x00d7)
 457                         return -ENODEV;
 458                 break;
 459         case PCI_CHIP_MACH64CX:
 460                 if(type != 0x0057)
 461                         return -ENODEV;
 462                 break;
 463 #endif
 464 #ifdef CONFIG_FB_ATY_CT
 465         case PCI_CHIP_MACH64VT:
 466                 switch (rev & 0x07) {
 467                 case 0x00:
 468                         switch (rev & 0xc0) {
 469                         case 0x00:
 470                                 name = "ATI264VT (A3) (Mach64 VT)";
 471                                 par->pll_limits.pll_max = 170;
 472                                 par->pll_limits.mclk = 67;
 473                                 par->pll_limits.xclk = 67;
 474                                 par->pll_limits.ecp_max = 80;
 475                                 par->features = ATI_CHIP_264VT;
 476                                 break;
 477                         case 0x40:
 478                                 name = "ATI264VT2 (A4) (Mach64 VT)";
 479                                 par->pll_limits.pll_max = 200;
 480                                 par->pll_limits.mclk = 67;
 481                                 par->pll_limits.xclk = 67;
 482                                 par->pll_limits.ecp_max = 80;
 483                                 par->features = ATI_CHIP_264VT | M64F_MAGIC_POSTDIV;
 484                                 break;
 485                         }
 486                         break;
 487                 case 0x01:
 488                         name = "ATI264VT3 (B1) (Mach64 VT)";
 489                         par->pll_limits.pll_max = 200;
 490                         par->pll_limits.mclk = 67;
 491                         par->pll_limits.xclk = 67;
 492                         par->pll_limits.ecp_max = 80;
 493                         par->features = ATI_CHIP_264VTB;
 494                         break;
 495                 case 0x02:
 496                         name = "ATI264VT3 (B2) (Mach64 VT)";
 497                         par->pll_limits.pll_max = 200;
 498                         par->pll_limits.mclk = 67;
 499                         par->pll_limits.xclk = 67;
 500                         par->pll_limits.ecp_max = 80;
 501                         par->features = ATI_CHIP_264VT3;
 502                         break;
 503                 }
 504                 break;
 505         case PCI_CHIP_MACH64GT:
 506                 switch (rev & 0x07) {
 507                 case 0x01:
 508                         name = "3D RAGE II (Mach64 GT)";
 509                         par->pll_limits.pll_max = 170;
 510                         par->pll_limits.mclk = 67;
 511                         par->pll_limits.xclk = 67;
 512                         par->pll_limits.ecp_max = 80;
 513                         par->features = ATI_CHIP_264GTB;
 514                         break;
 515                 case 0x02:
 516                         name = "3D RAGE II+ (Mach64 GT)";
 517                         par->pll_limits.pll_max = 200;
 518                         par->pll_limits.mclk = 67;
 519                         par->pll_limits.xclk = 67;
 520                         par->pll_limits.ecp_max = 100;
 521                         par->features = ATI_CHIP_264GTB;
 522                         break;
 523                 }
 524                 break;
 525 #endif
 526         }
 527
 528         PRINTKI("%s [0x%04x rev 0x%02x]\n", name, type, rev);
 529         return 0;
 530 }
 531
 532 static char ram_dram[] __devinitdata = "DRAM";
 533 static char ram_resv[] __devinitdata = "RESV";
 534 #ifdef CONFIG_FB_ATY_GX
 535 static char ram_vram[] __devinitdata = "VRAM";
 536 #endif /* CONFIG_FB_ATY_GX */
 537 #ifdef CONFIG_FB_ATY_CT
 538 static char ram_edo[] __devinitdata = "EDO";
 539 static char ram_sdram[] __devinitdata = "SDRAM (1:1)";
 540 static char ram_sgram[] __devinitdata = "SGRAM (1:1)";
 541 static char ram_sdram32[] __devinitdata = "SDRAM (2:1) (32-bit)";
 542 static char ram_off[] __devinitdata = "OFF";
 543 #endif /* CONFIG_FB_ATY_CT */
 544
 545
 546 #ifdef CONFIG_FB_ATY_GX
 547 static char *aty_gx_ram[8] __devinitdata = {
 548         ram_dram, ram_vram, ram_vram, ram_dram,
 549         ram_dram, ram_vram, ram_vram, ram_resv
 550 };
 551 #endif /* CONFIG_FB_ATY_GX */
 552
 553 #ifdef CONFIG_FB_ATY_CT
 554 static char *aty_ct_ram[8] __devinitdata = {
 555         ram_off, ram_dram, ram_edo, ram_edo,
 556         ram_sdram, ram_sgram, ram_sdram32, ram_resv
 557 };
 558 #endif /* CONFIG_FB_ATY_CT */
 559
 560 static u32 atyfb_get_pixclock(struct fb_var_screeninfo *var, struct atyfb_par *par)
 561 {
 562         u32 pixclock = var->pixclock;
 563 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 564         u32 lcd_on_off;
 565         par->pll.ct.xres = 0;
 566         if (par->lcd_table != 0) {
 567                 lcd_on_off = aty_ld_lcd(LCD_GEN_CNTL, par);
 568                 if(lcd_on_off & LCD_ON) {
 569                         par->pll.ct.xres = var->xres;
 570                         pixclock = par->lcd_pixclock;
 571                 }
 572         }
 573 #endif
 574         return pixclock;
 575 }
 576
 577 #if defined(CONFIG_PPC)
 578
 579 /*
 580  *  Apple monitor sense
 581  */
 582
 583 static int __devinit read_aty_sense(const struct atyfb_par *par)
 584 {
 585         int sense, i;
 586
 587         aty_st_le32(GP_IO, 0x31003100, par); /* drive outputs high */
 588         __delay(200);
 589         aty_st_le32(GP_IO, 0, par); /* turn off outputs */
 590         __delay(2000);
 591         i = aty_ld_le32(GP_IO, par); /* get primary sense value */
 592         sense = ((i & 0x3000) >> 3) | (i & 0x100);
 593
 594         /* drive each sense line low in turn and collect the other 2 */
 595         aty_st_le32(GP_IO, 0x20000000, par); /* drive A low */
 596         __delay(2000);
 597         i = aty_ld_le32(GP_IO, par);
 598         sense |= ((i & 0x1000) >> 7) | ((i & 0x100) >> 4);
 599         aty_st_le32(GP_IO, 0x20002000, par); /* drive A high again */
 600         __delay(200);
 601
 602         aty_st_le32(GP_IO, 0x10000000, par); /* drive B low */
 603         __delay(2000);
 604         i = aty_ld_le32(GP_IO, par);
 605         sense |= ((i & 0x2000) >> 10) | ((i & 0x100) >> 6);
 606         aty_st_le32(GP_IO, 0x10001000, par); /* drive B high again */
 607         __delay(200);
 608
 609         aty_st_le32(GP_IO, 0x01000000, par); /* drive C low */
 610         __delay(2000);
 611         sense |= (aty_ld_le32(GP_IO, par) & 0x3000) >> 12;
 612         aty_st_le32(GP_IO, 0, par); /* turn off outputs */
 613         return sense;
 614 }
 615
 616 #endif /* defined(CONFIG_PPC) */
 617
 618 /* ------------------------------------------------------------------------- */
 619
 620 /*
 621  *  CRTC programming
 622  */
 623
 624 static void aty_get_crtc(const struct atyfb_par *par, struct crtc *crtc)
 625 {
 626 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 627         if (par->lcd_table != 0) {
 628                 if(!M64_HAS(LT_LCD_REGS)) {
 629                     crtc->lcd_index = aty_ld_le32(LCD_INDEX, par);
 630                     aty_st_le32(LCD_INDEX, crtc->lcd_index, par);
 631                 }
 632                 crtc->lcd_config_panel = aty_ld_lcd(CONFIG_PANEL, par);
 633                 crtc->lcd_gen_cntl = aty_ld_lcd(LCD_GEN_CNTL, par);
 634
 635
 636                 /* switch to non shadow registers */
 637                 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl &
 638                     ~(CRTC_RW_SELECT | SHADOW_EN | SHADOW_RW_EN), par);
 639
 640                 /* save stretching */
 641                 crtc->horz_stretching = aty_ld_lcd(HORZ_STRETCHING, par);
 642                 crtc->vert_stretching = aty_ld_lcd(VERT_STRETCHING, par);
 643                 if (!M64_HAS(LT_LCD_REGS))
 644                         crtc->ext_vert_stretch = aty_ld_lcd(EXT_VERT_STRETCH, par);
 645         }
 646 #endif
 647         crtc->h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
 648         crtc->h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);
 649         crtc->v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
 650         crtc->v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par);
 651         crtc->vline_crnt_vline = aty_ld_le32(CRTC_VLINE_CRNT_VLINE, par);
 652         crtc->off_pitch = aty_ld_le32(CRTC_OFF_PITCH, par);
 653         crtc->gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par);
 654
 655 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 656         if (par->lcd_table != 0) {
 657                 /* switch to shadow registers */
 658                 aty_st_lcd(LCD_GEN_CNTL, (crtc->lcd_gen_cntl & ~CRTC_RW_SELECT) |
 659                         SHADOW_EN | SHADOW_RW_EN, par);
 660
 661                 crtc->shadow_h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
 662                 crtc->shadow_h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);
 663                 crtc->shadow_v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
 664                 crtc->shadow_v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par);
 665
 666                 aty_st_le32(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par);
 667         }
 668 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
 669 }
 670
 671 static void aty_set_crtc(const struct atyfb_par *par, const struct crtc *crtc)
 672 {
 673 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 674         if (par->lcd_table != 0) {
 675                 /* stop CRTC */
 676                 aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl & ~(CRTC_EXT_DISP_EN | CRTC_EN), par);
 677
 678                 /* update non-shadow registers first */
 679                 aty_st_lcd(CONFIG_PANEL, crtc->lcd_config_panel, par);
 680                 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl &
 681                         ~(CRTC_RW_SELECT | SHADOW_EN | SHADOW_RW_EN), par);
 682
 683                 /* temporarily disable stretching */
 684                 aty_st_lcd(HORZ_STRETCHING,
 685                         crtc->horz_stretching &
 686                         ~(HORZ_STRETCH_MODE | HORZ_STRETCH_EN), par);
 687                 aty_st_lcd(VERT_STRETCHING,
 688                         crtc->vert_stretching &
 689                         ~(VERT_STRETCH_RATIO1 | VERT_STRETCH_RATIO2 |
 690                         VERT_STRETCH_USE0 | VERT_STRETCH_EN), par);
 691         }
 692 #endif
 693         /* turn off CRT */
 694         aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl & ~CRTC_EN, par);
 695
 696         DPRINTK("setting up CRTC\n");
 697         DPRINTK("set primary CRT to %ix%i %c%c composite %c\n",
 698             ((((crtc->h_tot_disp>>16) & 0xff) + 1)<<3), (((crtc->v_tot_disp>>16) & 0x7ff) + 1),
 699             (crtc->h_sync_strt_wid & 0x200000)?'N':'P', (crtc->v_sync_strt_wid & 0x200000)?'N':'P',
 700             (crtc->gen_cntl & CRTC_CSYNC_EN)?'P':'N');
 701
 702         DPRINTK("CRTC_H_TOTAL_DISP: %x\n",crtc->h_tot_disp);
 703         DPRINTK("CRTC_H_SYNC_STRT_WID: %x\n",crtc->h_sync_strt_wid);
 704         DPRINTK("CRTC_V_TOTAL_DISP: %x\n",crtc->v_tot_disp);
 705         DPRINTK("CRTC_V_SYNC_STRT_WID: %x\n",crtc->v_sync_strt_wid);
 706         DPRINTK("CRTC_OFF_PITCH: %x\n", crtc->off_pitch);
 707         DPRINTK("CRTC_VLINE_CRNT_VLINE: %x\n", crtc->vline_crnt_vline);
 708         DPRINTK("CRTC_GEN_CNTL: %x\n",crtc->gen_cntl);
 709
 710         aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_tot_disp, par);
 711         aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid, par);
 712         aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_tot_disp, par);
 713         aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid, par);
 714         aty_st_le32(CRTC_OFF_PITCH, crtc->off_pitch, par);
 715         aty_st_le32(CRTC_VLINE_CRNT_VLINE, crtc->vline_crnt_vline, par);
 716
 717         aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl, par);
 718 #if 0
 719         FIXME
 720         if (par->accel_flags & FB_ACCELF_TEXT)
 721                 aty_init_engine(par, info);
 722 #endif
 723 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 724         /* after setting the CRTC registers we should set the LCD registers. */
 725         if (par->lcd_table != 0) {
 726                 /* switch to shadow registers */
 727                 aty_st_lcd(LCD_GEN_CNTL, (crtc->lcd_gen_cntl & ~CRTC_RW_SELECT) |
 728                         (SHADOW_EN | SHADOW_RW_EN), par);
 729
 730                 DPRINTK("set shadow CRT to %ix%i %c%c\n",
 731                     ((((crtc->shadow_h_tot_disp>>16) & 0xff) + 1)<<3), (((crtc->shadow_v_tot_disp>>16) & 0x7ff) + 1),
 732                     (crtc->shadow_h_sync_strt_wid & 0x200000)?'N':'P', (crtc->shadow_v_sync_strt_wid & 0x200000)?'N':'P');
 733
 734                 DPRINTK("SHADOW CRTC_H_TOTAL_DISP: %x\n", crtc->shadow_h_tot_disp);
 735                 DPRINTK("SHADOW CRTC_H_SYNC_STRT_WID: %x\n", crtc->shadow_h_sync_strt_wid);
 736                 DPRINTK("SHADOW CRTC_V_TOTAL_DISP: %x\n", crtc->shadow_v_tot_disp);
 737                 DPRINTK("SHADOW CRTC_V_SYNC_STRT_WID: %x\n", crtc->shadow_v_sync_strt_wid);
 738
 739                 aty_st_le32(CRTC_H_TOTAL_DISP, crtc->shadow_h_tot_disp, par);
 740                 aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->shadow_h_sync_strt_wid, par);
 741                 aty_st_le32(CRTC_V_TOTAL_DISP, crtc->shadow_v_tot_disp, par);
 742                 aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->shadow_v_sync_strt_wid, par);
 743
 744                 /* restore CRTC selection & shadow state and enable stretching */
 745                 DPRINTK("LCD_GEN_CNTL: %x\n", crtc->lcd_gen_cntl);
 746                 DPRINTK("HORZ_STRETCHING: %x\n", crtc->horz_stretching);
 747                 DPRINTK("VERT_STRETCHING: %x\n", crtc->vert_stretching);
 748                 if(!M64_HAS(LT_LCD_REGS))
 749                     DPRINTK("EXT_VERT_STRETCH: %x\n", crtc->ext_vert_stretch);
 750
 751                 aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par);
 752                 aty_st_lcd(HORZ_STRETCHING, crtc->horz_stretching, par);
 753                 aty_st_lcd(VERT_STRETCHING, crtc->vert_stretching, par);
 754                 if(!M64_HAS(LT_LCD_REGS)) {
 755                     aty_st_lcd(EXT_VERT_STRETCH, crtc->ext_vert_stretch, par);
 756                     aty_ld_le32(LCD_INDEX, par);
 757                     aty_st_le32(LCD_INDEX, crtc->lcd_index, par);
 758                 }
 759         }
 760 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
 761 }
 762
 763 static int aty_var_to_crtc(const struct fb_info *info,
 764         const struct fb_var_screeninfo *var, struct crtc *crtc)
 765 {
 766         struct atyfb_par *par = (struct atyfb_par *) info->par;
 767         u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp;
 768         u32 sync, vmode, vdisplay;
 769         u32 h_total, h_disp, h_sync_strt, h_sync_end, h_sync_dly, h_sync_wid, h_sync_pol;
 770         u32 v_total, v_disp, v_sync_strt, v_sync_end, v_sync_wid, v_sync_pol, c_sync;
 771         u32 pix_width, dp_pix_width, dp_chain_mask;
 772
 773         /* input */
 774         xres = var->xres;
 775         yres = var->yres;
 776         vxres = var->xres_virtual;
 777         vyres = var->yres_virtual;
 778         xoffset = var->xoffset;
 779         yoffset = var->yoffset;
 780         bpp = var->bits_per_pixel;
 781         if (bpp == 16)
 782                 bpp = (var->green.length == 5) ? 15 : 16;
 783         sync = var->sync;
 784         vmode = var->vmode;
 785
 786         /* convert (and round up) and validate */
 787         if (vxres < xres + xoffset)
 788                 vxres = xres + xoffset;
 789         h_disp = xres;
 790
 791         if (vyres < yres + yoffset)
 792                 vyres = yres + yoffset;
 793         v_disp = yres;
 794
 795         if (bpp <= 8) {
 796                 bpp = 8;
 797                 pix_width = CRTC_PIX_WIDTH_8BPP;
 798                 dp_pix_width =
 799                     HOST_8BPP | SRC_8BPP | DST_8BPP |
 800                     BYTE_ORDER_LSB_TO_MSB;
 801                 dp_chain_mask = DP_CHAIN_8BPP;
 802         } else if (bpp <= 15) {
 803                 bpp = 16;
 804                 pix_width = CRTC_PIX_WIDTH_15BPP;
 805                 dp_pix_width = HOST_15BPP | SRC_15BPP | DST_15BPP |
 806                     BYTE_ORDER_LSB_TO_MSB;
 807                 dp_chain_mask = DP_CHAIN_15BPP;
 808         } else if (bpp <= 16) {
 809                 bpp = 16;
 810                 pix_width = CRTC_PIX_WIDTH_16BPP;
 811                 dp_pix_width = HOST_16BPP | SRC_16BPP | DST_16BPP |
 812                     BYTE_ORDER_LSB_TO_MSB;
 813                 dp_chain_mask = DP_CHAIN_16BPP;
 814         } else if (bpp <= 24 && M64_HAS(INTEGRATED)) {
 815                 bpp = 24;
 816                 pix_width = CRTC_PIX_WIDTH_24BPP;
 817                 dp_pix_width =
 818                     HOST_8BPP | SRC_8BPP | DST_8BPP |
 819                     BYTE_ORDER_LSB_TO_MSB;
 820                 dp_chain_mask = DP_CHAIN_24BPP;
 821         } else if (bpp <= 32) {
 822                 bpp = 32;
 823                 pix_width = CRTC_PIX_WIDTH_32BPP;
 824                 dp_pix_width = HOST_32BPP | SRC_32BPP | DST_32BPP |
 825                     BYTE_ORDER_LSB_TO_MSB;
 826                 dp_chain_mask = DP_CHAIN_32BPP;
 827         } else
 828                 FAIL("invalid bpp");
 829
 830         if (vxres * vyres * bpp / 8 > info->fix.smem_len)
 831                 FAIL("not enough video RAM");
 832
 833         h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
 834         v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
 835
 836         if((xres > 1600) || (yres > 1200)) {
 837                 FAIL("MACH64 chips are designed for max 1600x1200\n"
 838                 "select anoter resolution.");
 839         }
 840         h_sync_strt = h_disp + var->right_margin;
 841         h_sync_end = h_sync_strt + var->hsync_len;
 842         h_sync_dly  = var->right_margin & 7;
 843         h_total = h_sync_end + h_sync_dly + var->left_margin;
 844
 845         v_sync_strt = v_disp + var->lower_margin;
 846         v_sync_end = v_sync_strt + var->vsync_len;
 847         v_total = v_sync_end + var->upper_margin;
 848
 849 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 850         if (par->lcd_table != 0) {
 851                 if(!M64_HAS(LT_LCD_REGS)) {
 852                     u32 lcd_index = aty_ld_le32(LCD_INDEX, par);
 853                     crtc->lcd_index = lcd_index &
 854                         ~(LCD_INDEX_MASK | LCD_DISPLAY_DIS | LCD_SRC_SEL | CRTC2_DISPLAY_DIS);
 855                     aty_st_le32(LCD_INDEX, lcd_index, par);
 856                 }
 857
 858                 if (!M64_HAS(MOBIL_BUS))
 859                         crtc->lcd_index |= CRTC2_DISPLAY_DIS;
 860
 861                 crtc->lcd_config_panel = aty_ld_lcd(CONFIG_PANEL, par) | 0x4000;
 862                 crtc->lcd_gen_cntl = aty_ld_lcd(LCD_GEN_CNTL, par) & ~CRTC_RW_SELECT;
 863
 864                 crtc->lcd_gen_cntl &=
 865                         ~(HORZ_DIVBY2_EN | DIS_HOR_CRT_DIVBY2 | TVCLK_PM_EN |
 866                         /*VCLK_DAC_PM_EN | USE_SHADOWED_VEND |*/
 867                         USE_SHADOWED_ROWCUR | SHADOW_EN | SHADOW_RW_EN);
 868                 crtc->lcd_gen_cntl |= DONT_SHADOW_VPAR | LOCK_8DOT;
 869
 870                 if((crtc->lcd_gen_cntl & LCD_ON) &&
 871                         ((xres > par->lcd_width) || (yres > par->lcd_height))) {
 872                         /* We cannot display the mode on the LCD. If the CRT is enabled
 873                            we can turn off the LCD.
 874                            If the CRT is off, it isn't a good idea to switch it on; we don't
 875                            know if one is connected. So it's better to fail then.
 876                          */
 877                         if (crtc->lcd_gen_cntl & CRT_ON) {
 878                                 if (!(var->activate & FB_ACTIVATE_TEST))
 879                                         PRINTKI("Disable LCD panel, because video mode does not fit.\n");
 880                                 crtc->lcd_gen_cntl &= ~LCD_ON;
 881                                 /*aty_st_lcd(LCD_GEN_CNTL, crtc->lcd_gen_cntl, par);*/
 882                         } else {
 883                                 if (!(var->activate & FB_ACTIVATE_TEST))
 884                                         PRINTKE("Video mode exceeds size of LCD panel.\nConnect this computer to a conventional monitor if you really need this mode.\n");
 885                                 return -EINVAL;
 886                         }
 887                 }
 888         }
 889
 890         if ((par->lcd_table != 0) && (crtc->lcd_gen_cntl & LCD_ON)) {
 891                 int VScan = 1;
 892                 /* bpp -> bytespp, 1,4 -> 0; 8 -> 2; 15,16 -> 1; 24 -> 6; 32 -> 5
 893                 const u8 DFP_h_sync_dly_LT[] = { 0, 2, 1, 6, 5 };
 894                 const u8 ADD_to_strt_wid_and_dly_LT_DAC[] = { 0, 5, 6, 9, 9, 12, 12 };  */
 895
 896                 vmode &= ~(FB_VMODE_DOUBLE | FB_VMODE_INTERLACED);
 897
 898                 /* This is horror! When we simulate, say 640x480 on an 800x600
 899                    LCD monitor, the CRTC should be programmed 800x600 values for
 900                    the non visible part, but 640x480 for the visible part.
 901                    This code has been tested on a laptop with it's 1400x1050 LCD
 902                    monitor and a conventional monitor both switched on.
 903                    Tested modes: 1280x1024, 1152x864, 1024x768, 800x600,
 904                     works with little glitches also with DOUBLESCAN modes
 905                  */
 906                 if (yres < par->lcd_height) {
 907                         VScan = par->lcd_height / yres;
 908                         if(VScan > 1) {
 909                                 VScan = 2;
 910                                 vmode |= FB_VMODE_DOUBLE;
 911                         }
 912                 }
 913
 914                 h_sync_strt = h_disp + par->lcd_right_margin;
 915                 h_sync_end = h_sync_strt + par->lcd_hsync_len;
 916                 h_sync_dly = /*DFP_h_sync_dly[ ( bpp + 1 ) / 3 ]; */par->lcd_hsync_dly;
 917                 h_total = h_disp + par->lcd_hblank_len;
 918
 919                 v_sync_strt = v_disp + par->lcd_lower_margin / VScan;
 920                 v_sync_end = v_sync_strt + par->lcd_vsync_len / VScan;
 921                 v_total = v_disp + par->lcd_vblank_len / VScan;
 922         }
 923 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
 924
 925         h_disp = (h_disp >> 3) - 1;
 926         h_sync_strt = (h_sync_strt >> 3) - 1;
 927         h_sync_end = (h_sync_end >> 3) - 1;
 928         h_total = (h_total >> 3) - 1;
 929         h_sync_wid = h_sync_end - h_sync_strt;
 930
 931         FAIL_MAX("h_disp too large", h_disp, 0xff);
 932         FAIL_MAX("h_sync_strt too large", h_sync_strt, 0x1ff);
 933         /*FAIL_MAX("h_sync_wid too large", h_sync_wid, 0x1f);*/
 934         if(h_sync_wid > 0x1f)
 935                 h_sync_wid = 0x1f;
 936         FAIL_MAX("h_total too large", h_total, 0x1ff);
 937
 938         if (vmode & FB_VMODE_DOUBLE) {
 939                 v_disp <<= 1;
 940                 v_sync_strt <<= 1;
 941                 v_sync_end <<= 1;
 942                 v_total <<= 1;
 943         }
 944
 945         vdisplay = yres;
 946 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 947         if ((par->lcd_table != 0) && (crtc->lcd_gen_cntl & LCD_ON))
 948                 vdisplay  = par->lcd_height;
 949 #endif
 950
 951         v_disp--;
 952         v_sync_strt--;
 953         v_sync_end--;
 954         v_total--;
 955         v_sync_wid = v_sync_end - v_sync_strt;
 956
 957         FAIL_MAX("v_disp too large", v_disp, 0x7ff);
 958         FAIL_MAX("v_sync_stsrt too large", v_sync_strt, 0x7ff);
 959         /*FAIL_MAX("v_sync_wid too large", v_sync_wid, 0x1f);*/
 960         if(v_sync_wid > 0x1f)
 961                 v_sync_wid = 0x1f;
 962         FAIL_MAX("v_total too large", v_total, 0x7ff);
 963
 964         c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? CRTC_CSYNC_EN : 0;
 965
 966         /* output */
 967         crtc->vxres = vxres;
 968         crtc->vyres = vyres;
 969         crtc->xoffset = xoffset;
 970         crtc->yoffset = yoffset;
 971         crtc->bpp = bpp;
 972         crtc->off_pitch = ((yoffset*vxres+xoffset)*bpp/64) | (vxres<<19);
 973         crtc->vline_crnt_vline = 0;
 974
 975         crtc->h_tot_disp = h_total | (h_disp<<16);
 976         crtc->h_sync_strt_wid = (h_sync_strt & 0xff) | (h_sync_dly<<8) |
 977                 ((h_sync_strt & 0x100)<<4) | (h_sync_wid<<16) | (h_sync_pol<<21);
 978         crtc->v_tot_disp = v_total | (v_disp<<16);
 979         crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid<<16) | (v_sync_pol<<21);
 980
 981         /* crtc->gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_PRESERVED_MASK; */
 982         crtc->gen_cntl = CRTC_EXT_DISP_EN | CRTC_EN | pix_width | c_sync;
 983         crtc->gen_cntl |= CRTC_VGA_LINEAR;
 984
 985         /* Enable doublescan mode if requested */
 986         if (vmode & FB_VMODE_DOUBLE)
 987                 crtc->gen_cntl |= CRTC_DBL_SCAN_EN;
 988         /* Enable interlaced mode if requested */
 989         if (vmode & FB_VMODE_INTERLACED)
 990                 crtc->gen_cntl |= CRTC_INTERLACE_EN;
 991 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 992         if (par->lcd_table != 0) {
 993                 vdisplay = yres;
 994                 if(vmode & FB_VMODE_DOUBLE)
 995                         vdisplay <<= 1;
 996                 crtc->gen_cntl &= ~(CRTC2_EN | CRTC2_PIX_WIDTH);
 997                 crtc->lcd_gen_cntl &= ~(HORZ_DIVBY2_EN | DIS_HOR_CRT_DIVBY2 |
 998                         /*TVCLK_PM_EN | VCLK_DAC_PM_EN |*/
 999                         USE_SHADOWED_VEND | USE_SHADOWED_ROWCUR | SHADOW_EN | SHADOW_RW_EN);
1000                 crtc->lcd_gen_cntl |= (DONT_SHADOW_VPAR/* | LOCK_8DOT*/);
1001
1002                 /* MOBILITY M1 tested, FIXME: LT */
1003                 crtc->horz_stretching = aty_ld_lcd(HORZ_STRETCHING, par);
1004                 if (!M64_HAS(LT_LCD_REGS))
1005                         crtc->ext_vert_stretch = aty_ld_lcd(EXT_VERT_STRETCH, par) &
1006                                 ~(AUTO_VERT_RATIO | VERT_STRETCH_MODE | VERT_STRETCH_RATIO3);
1007
1008                 crtc->horz_stretching &=
1009                         ~(HORZ_STRETCH_RATIO | HORZ_STRETCH_LOOP | AUTO_HORZ_RATIO |
1010                         HORZ_STRETCH_MODE | HORZ_STRETCH_EN);
1011                 if (xres < par->lcd_width && crtc->lcd_gen_cntl & LCD_ON) {
1012                         do {
1013                                 /*
1014                                 * The horizontal blender misbehaves when HDisplay is less than a
1015                                 * a certain threshold (440 for a 1024-wide panel).  It doesn't
1016                                 * stretch such modes enough.  Use pixel replication instead of
1017                                 * blending to stretch modes that can be made to exactly fit the
1018                                 * panel width.  The undocumented "NoLCDBlend" option allows the
1019                                 * pixel-replicated mode to be slightly wider or narrower than the
1020                                 * panel width.  It also causes a mode that is exactly half as wide
1021                                 * as the panel to be pixel-replicated, rather than blended.
1022                                 */
1023                                 int HDisplay  = xres & ~7;
1024                                 int nStretch  = par->lcd_width / HDisplay;
1025                                 int Remainder = par->lcd_width % HDisplay;
1026
1027                                 if ((!Remainder && ((nStretch > 2))) ||
1028                                         (((HDisplay * 16) / par->lcd_width) < 7)) {
1029                                         static const char StretchLoops[] = {10, 12, 13, 15, 16};
1030                                         int horz_stretch_loop = -1, BestRemainder;
1031                                         int Numerator = HDisplay, Denominator = par->lcd_width;
1032                                         int Index = 5;
1033                                         ATIReduceRatio(&Numerator, &Denominator);
1034
1035                                         BestRemainder = (Numerator * 16) / Denominator;
1036                                         while (--Index >= 0) {
1037                                                 Remainder = ((Denominator - Numerator) * StretchLoops[Index]) %
1038                                                         Denominator;
1039                                                 if (Remainder < BestRemainder) {
1040                                                         horz_stretch_loop = Index;
1041                                                         if (!(BestRemainder = Remainder))
1042                                                                 break;
1043                                                 }
1044                                         }
1045
1046                                         if ((horz_stretch_loop >= 0) && !BestRemainder) {
1047                                                 int horz_stretch_ratio = 0, Accumulator = 0;
1048                                                 int reuse_previous = 1;
1049
1050                                                 Index = StretchLoops[horz_stretch_loop];
1051
1052                                                 while (--Index >= 0) {
1053                                                         if (Accumulator > 0)
1054                                                                 horz_stretch_ratio |= reuse_previous;
1055                                                         else
1056                                                                 Accumulator += Denominator;
1057                                                         Accumulator -= Numerator;
1058                                                         reuse_previous <<= 1;
1059                                                 }
1060
1061                                                 crtc->horz_stretching |= (HORZ_STRETCH_EN |
1062                                                         ((horz_stretch_loop & HORZ_STRETCH_LOOP) << 16) |
1063                                                         (horz_stretch_ratio & HORZ_STRETCH_RATIO));
1064                                                 break;      /* Out of the do { ... } while (0) */
1065                                         }
1066                                 }
1067
1068                                 crtc->horz_stretching |= (HORZ_STRETCH_MODE | HORZ_STRETCH_EN |
1069                                         (((HDisplay * (HORZ_STRETCH_BLEND + 1)) / par->lcd_width) & HORZ_STRETCH_BLEND));
1070                         } while (0);
1071                 }
1072
1073                 if (vdisplay < par->lcd_height && crtc->lcd_gen_cntl & LCD_ON) {
1074                         crtc->vert_stretching = (VERT_STRETCH_USE0 | VERT_STRETCH_EN |
1075                                 (((vdisplay * (VERT_STRETCH_RATIO0 + 1)) / par->lcd_height) & VERT_STRETCH_RATIO0));
1076
1077                         if (!M64_HAS(LT_LCD_REGS) &&
1078                             xres <= (M64_HAS(MOBIL_BUS)?1024:800))
1079                                 crtc->ext_vert_stretch |= VERT_STRETCH_MODE;
1080                 } else {
1081                         /*
1082                          * Don't use vertical blending if the mode is too wide or not
1083                          * vertically stretched.
1084                          */
1085                         crtc->vert_stretching = 0;
1086                 }
1087                 /* copy to shadow crtc */
1088                 crtc->shadow_h_tot_disp = crtc->h_tot_disp;
1089                 crtc->shadow_h_sync_strt_wid = crtc->h_sync_strt_wid;
1090                 crtc->shadow_v_tot_disp = crtc->v_tot_disp;
1091                 crtc->shadow_v_sync_strt_wid = crtc->v_sync_strt_wid;
1092         }
1093 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
1094
1095         if (M64_HAS(MAGIC_FIFO)) {
1096                 /* FIXME: display FIFO low watermark values */
1097                 crtc->gen_cntl |= (aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_FIFO_LWM);
1098         }
1099         crtc->dp_pix_width = dp_pix_width;
1100         crtc->dp_chain_mask = dp_chain_mask;
1101
1102         return 0;
1103 }
1104
1105 static int aty_crtc_to_var(const struct crtc *crtc, struct fb_var_screeninfo *var)
1106 {
1107         u32 xres, yres, bpp, left, right, upper, lower, hslen, vslen, sync;
1108         u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid,
1109             h_sync_pol;
1110         u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync;
1111         u32 pix_width;
1112         u32 double_scan, interlace;
1113
1114         /* input */
1115         h_total = crtc->h_tot_disp & 0x1ff;
1116         h_disp = (crtc->h_tot_disp >> 16) & 0xff;
1117         h_sync_strt = (crtc->h_sync_strt_wid & 0xff) | ((crtc->h_sync_strt_wid >> 4) & 0x100);
1118         h_sync_dly = (crtc->h_sync_strt_wid >> 8) & 0x7;
1119         h_sync_wid = (crtc->h_sync_strt_wid >> 16) & 0x1f;
1120         h_sync_pol = (crtc->h_sync_strt_wid >> 21) & 0x1;
1121         v_total = crtc->v_tot_disp & 0x7ff;
1122         v_disp = (crtc->v_tot_disp >> 16) & 0x7ff;
1123         v_sync_strt = crtc->v_sync_strt_wid & 0x7ff;
1124         v_sync_wid = (crtc->v_sync_strt_wid >> 16) & 0x1f;
1125         v_sync_pol = (crtc->v_sync_strt_wid >> 21) & 0x1;
1126         c_sync = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0;
1127         pix_width = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK;
1128         double_scan = crtc->gen_cntl & CRTC_DBL_SCAN_EN;
1129         interlace = crtc->gen_cntl & CRTC_INTERLACE_EN;
1130
1131         /* convert */
1132         xres = (h_disp + 1) * 8;
1133         yres = v_disp + 1;
1134         left = (h_total - h_sync_strt - h_sync_wid) * 8 - h_sync_dly;
1135         right = (h_sync_strt - h_disp) * 8 + h_sync_dly;
1136         hslen = h_sync_wid * 8;
1137         upper = v_total - v_sync_strt - v_sync_wid;
1138         lower = v_sync_strt - v_disp;
1139         vslen = v_sync_wid;
1140         sync = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) |
1141             (v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) |
1142             (c_sync ? FB_SYNC_COMP_HIGH_ACT : 0);
1143
1144         switch (pix_width) {
1145 #if 0
1146         case CRTC_PIX_WIDTH_4BPP:
1147                 bpp = 4;
1148                 var->red.offset = 0;
1149                 var->red.length = 8;
1150                 var->green.offset = 0;
1151                 var->green.length = 8;
1152                 var->blue.offset = 0;
1153                 var->blue.length = 8;
1154                 var->transp.offset = 0;
1155                 var->transp.length = 0;
1156                 break;
1157 #endif
1158         case CRTC_PIX_WIDTH_8BPP:
1159                 bpp = 8;
1160                 var->red.offset = 0;
1161                 var->red.length = 8;
1162                 var->green.offset = 0;
1163                 var->green.length = 8;
1164                 var->blue.offset = 0;
1165                 var->blue.length = 8;
1166                 var->transp.offset = 0;
1167                 var->transp.length = 0;
1168                 break;
1169         case CRTC_PIX_WIDTH_15BPP:      /* RGB 555 */
1170                 bpp = 16;
1171                 var->red.offset = 10;
1172                 var->red.length = 5;
1173                 var->green.offset = 5;
1174                 var->green.length = 5;
1175                 var->blue.offset = 0;
1176                 var->blue.length = 5;
1177                 var->transp.offset = 0;
1178                 var->transp.length = 0;
1179                 break;
1180         case CRTC_PIX_WIDTH_16BPP:      /* RGB 565 */
1181                 bpp = 16;
1182                 var->red.offset = 11;
1183                 var->red.length = 5;
1184                 var->green.offset = 5;
1185                 var->green.length = 6;
1186                 var->blue.offset = 0;
1187                 var->blue.length = 5;
1188                 var->transp.offset = 0;
1189                 var->transp.length = 0;
1190                 break;
1191         case CRTC_PIX_WIDTH_24BPP:      /* RGB 888 */
1192                 bpp = 24;
1193                 var->red.offset = 16;
1194                 var->red.length = 8;
1195                 var->green.offset = 8;
1196                 var->green.length = 8;
1197                 var->blue.offset = 0;
1198                 var->blue.length = 8;
1199                 var->transp.offset = 0;
1200                 var->transp.length = 0;
1201                 break;
1202         case CRTC_PIX_WIDTH_32BPP:      /* ARGB 8888 */
1203                 bpp = 32;
1204                 var->red.offset = 16;
1205                 var->red.length = 8;
1206                 var->green.offset = 8;
1207                 var->green.length = 8;
1208                 var->blue.offset = 0;
1209                 var->blue.length = 8;
1210                 var->transp.offset = 24;
1211                 var->transp.length = 8;
1212                 break;
1213         default:
1214                 PRINTKE("Invalid pixel width\n");
1215                 return -EINVAL;
1216         }
1217
1218         /* output */
1219         var->xres = xres;
1220         var->yres = yres;
1221         var->xres_virtual = crtc->vxres;
1222         var->yres_virtual = crtc->vyres;
1223         var->bits_per_pixel = bpp;
1224         var->left_margin = left;
1225         var->right_margin = right;
1226         var->upper_margin = upper;
1227         var->lower_margin = lower;
1228         var->hsync_len = hslen;
1229         var->vsync_len = vslen;
1230         var->sync = sync;
1231         var->vmode = FB_VMODE_NONINTERLACED;
1232         /* In double scan mode, the vertical parameters are doubled, so we need to
1233            half them to get the right values.
1234            In interlaced mode the values are already correct, so no correction is
1235            necessary.
1236          */
1237         if (interlace)
1238                 var->vmode = FB_VMODE_INTERLACED;
1239
1240         if (double_scan) {
1241                 var->vmode = FB_VMODE_DOUBLE;
1242                 var->yres>>=1;
1243                 var->upper_margin>>=1;
1244                 var->lower_margin>>=1;
1245                 var->vsync_len>>=1;
1246         }
1247
1248         return 0;
1249 }
1250
1251 /* ------------------------------------------------------------------------- */
1252
1253 static int atyfb_set_par(struct fb_info *info)
1254 {
1255         struct atyfb_par *par = (struct atyfb_par *) info->par;
1256         struct fb_var_screeninfo *var = &info->var;
1257         u32 tmp, pixclock;
1258         int err;
1259 #ifdef DEBUG
1260         struct fb_var_screeninfo debug;
1261         u32 pixclock_in_ps;
1262 #endif
1263         if (par->asleep)
1264                 return 0;
1265
1266         if ((err = aty_var_to_crtc(info, var, &par->crtc)))
1267                 return err;
1268
1269         pixclock = atyfb_get_pixclock(var, par);
1270
1271         if (pixclock == 0) {
1272                 PRINTKE("Invalid pixclock\n");
1273                 return -EINVAL;
1274         } else {
1275                 if((err = par->pll_ops->var_to_pll(info, pixclock, var->bits_per_pixel, &par->pll)))
1276                         return err;
1277         }
1278
1279         par->accel_flags = var->accel_flags; /* hack */
1280
1281         if (var->accel_flags) {
1282                 info->fbops->fb_sync = atyfb_sync;
1283                 info->flags &= ~FBINFO_HWACCEL_DISABLED;
1284         } else {
1285                 info->fbops->fb_sync = NULL;
1286                 info->flags |= FBINFO_HWACCEL_DISABLED;
1287         }
1288
1289         if (par->blitter_may_be_busy)
1290                 wait_for_idle(par);
1291
1292         aty_set_crtc(par, &par->crtc);
1293         par->dac_ops->set_dac(info, &par->pll, var->bits_per_pixel, par->accel_flags);
1294         par->pll_ops->set_pll(info, &par->pll);
1295
1296 #ifdef DEBUG
1297         if(par->pll_ops && par->pll_ops->pll_to_var)
1298                 pixclock_in_ps = par->pll_ops->pll_to_var(info, &(par->pll));
1299         else
1300                 pixclock_in_ps = 0;
1301
1302         if(0 == pixclock_in_ps) {
1303                 PRINTKE("ALERT ops->pll_to_var get 0\n");
1304                 pixclock_in_ps = pixclock;
1305         }
1306
1307         memset(&debug, 0, sizeof(debug));
1308         if(!aty_crtc_to_var(&(par->crtc), &debug)) {
1309                 u32 hSync, vRefresh;
1310                 u32 h_disp, h_sync_strt, h_sync_end, h_total;
1311                 u32 v_disp, v_sync_strt, v_sync_end, v_total;
1312
1313                 h_disp = debug.xres;
1314                 h_sync_strt = h_disp + debug.right_margin;
1315                 h_sync_end = h_sync_strt + debug.hsync_len;
1316                 h_total = h_sync_end + debug.left_margin;
1317                 v_disp = debug.yres;
1318                 v_sync_strt = v_disp + debug.lower_margin;
1319                 v_sync_end = v_sync_strt + debug.vsync_len;
1320                 v_total = v_sync_end + debug.upper_margin;
1321
1322                 hSync = 1000000000 / (pixclock_in_ps * h_total);
1323                 vRefresh = (hSync * 1000) / v_total;
1324                 if (par->crtc.gen_cntl & CRTC_INTERLACE_EN)
1325                 vRefresh *= 2;
1326                 if (par->crtc.gen_cntl & CRTC_DBL_SCAN_EN)
1327                 vRefresh /= 2;
1328
1329                 DPRINTK("atyfb_set_par\n");
1330                 DPRINTK(" Set Visible Mode to %ix%i-%i\n", var->xres, var->yres, var->bits_per_pixel);
1331                 DPRINTK(" Virtual resolution %ix%i, pixclock_in_ps %i (calculated %i)\n",
1332                         var->xres_virtual, var->yres_virtual, pixclock, pixclock_in_ps);
1333                 DPRINTK(" Dot clock:           %i MHz\n", 1000000 / pixclock_in_ps);
1334                 DPRINTK(" Horizontal sync:     %i kHz\n", hSync);
1335                 DPRINTK(" Vertical refresh:    %i Hz\n", vRefresh);
1336                 DPRINTK(" x  style: %i.%03i %i %i %i %i   %i %i %i %i\n",
1337                         1000000 / pixclock_in_ps, 1000000 % pixclock_in_ps,
1338                         h_disp, h_sync_strt, h_sync_end, h_total,
1339                         v_disp, v_sync_strt, v_sync_end, v_total);
1340                 DPRINTK(" fb style: %i  %i %i %i %i %i %i %i %i\n",
1341                         pixclock_in_ps,
1342                         debug.left_margin, h_disp, debug.right_margin, debug.hsync_len,
1343                         debug.upper_margin, v_disp, debug.lower_margin, debug.vsync_len);
1344         }
1345 #endif /* DEBUG */
1346
1347         if (!M64_HAS(INTEGRATED)) {
1348                 /* Don't forget MEM_CNTL */
1349                 tmp = aty_ld_le32(MEM_CNTL, par) & 0xf0ffffff;
1350                 switch (var->bits_per_pixel) {
1351                 case 8:
1352                         tmp |= 0x02000000;
1353                         break;
1354                 case 16:
1355                         tmp |= 0x03000000;
1356                         break;
1357                 case 32:
1358                         tmp |= 0x06000000;
1359                         break;
1360                 }
1361                 aty_st_le32(MEM_CNTL, tmp, par);
1362         } else {
1363                 tmp = aty_ld_le32(MEM_CNTL, par) & 0xf00fffff;
1364                 if (!M64_HAS(MAGIC_POSTDIV))
1365                         tmp |= par->mem_refresh_rate << 20;
1366                 switch (var->bits_per_pixel) {
1367                 case 8:
1368                 case 24:
1369                         tmp |= 0x00000000;
1370                         break;
1371                 case 16:
1372                         tmp |= 0x04000000;
1373                         break;
1374                 case 32:
1375                         tmp |= 0x08000000;
1376                         break;
1377                 }
1378                 if (M64_HAS(CT_BUS)) {
1379                         aty_st_le32(DAC_CNTL, 0x87010184, par);
1380                         aty_st_le32(BUS_CNTL, 0x680000f9, par);
1381                 } else if (M64_HAS(VT_BUS)) {
1382                         aty_st_le32(DAC_CNTL, 0x87010184, par);
1383                         aty_st_le32(BUS_CNTL, 0x680000f9, par);
1384                 } else if (M64_HAS(MOBIL_BUS)) {
1385                         aty_st_le32(DAC_CNTL, 0x80010102, par);
1386                         aty_st_le32(BUS_CNTL, 0x7b33a040 | (par->aux_start ? BUS_APER_REG_DIS : 0), par);
1387                 } else {
1388                         /* GT */
1389                         aty_st_le32(DAC_CNTL, 0x86010102, par);
1390                         aty_st_le32(BUS_CNTL, 0x7b23a040 | (par->aux_start ? BUS_APER_REG_DIS : 0), par);
1391                         aty_st_le32(EXT_MEM_CNTL, aty_ld_le32(EXT_MEM_CNTL, par) | 0x5000001, par);
1392                 }
1393                 aty_st_le32(MEM_CNTL, tmp, par);
1394         }
1395         aty_st_8(DAC_MASK, 0xff, par);
1396
1397         info->fix.line_length = var->xres_virtual * var->bits_per_pixel/8;
1398         info->fix.visual = var->bits_per_pixel <= 8 ?
1399                 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1400
1401         /* Initialize the graphics engine */
1402         if (par->accel_flags & FB_ACCELF_TEXT)
1403                 aty_init_engine(par, info);
1404
1405 #ifdef CONFIG_BOOTX_TEXT
1406         btext_update_display(info->fix.smem_start,
1407                 (((par->crtc.h_tot_disp >> 16) & 0xff) + 1) * 8,
1408                 ((par->crtc.v_tot_disp >> 16) & 0x7ff) + 1,
1409                 var->bits_per_pixel,
1410                 par->crtc.vxres * var->bits_per_pixel / 8);
1411 #endif /* CONFIG_BOOTX_TEXT */
1412 #if 0
1413         /* switch to accelerator mode */
1414         if (!(par->crtc.gen_cntl & CRTC_EXT_DISP_EN))
1415                 aty_st_le32(CRTC_GEN_CNTL, par->crtc.gen_cntl | CRTC_EXT_DISP_EN, par);
1416 #endif
1417 #ifdef DEBUG
1418 {
1419         /* dump non shadow CRTC, pll, LCD registers */
1420         int i; u32 base;
1421
1422         /* CRTC registers */
1423         base = 0x2000;
1424         printk("debug atyfb: Mach64 non-shadow register values:");
1425         for (i = 0; i < 256; i = i+4) {
1426                 if(i%16 == 0) printk("\ndebug atyfb: 0x%04X: ", base + i);
1427                 printk(" %08X", aty_ld_le32(i, par));
1428         }
1429         printk("\n\n");
1430
1431 #ifdef CONFIG_FB_ATY_CT
1432         /* PLL registers */
1433         base = 0x00;
1434         printk("debug atyfb: Mach64 PLL register values:");
1435         for (i = 0; i < 64; i++) {
1436                 if(i%16 == 0) printk("\ndebug atyfb: 0x%02X: ", base + i);
1437                 if(i%4 == 0)  printk(" ");
1438                 printk("%02X", aty_ld_pll_ct(i, par));
1439         }
1440         printk("\n\n");
1441 #endif  /* CONFIG_FB_ATY_CT */
1442
1443 #ifdef CONFIG_FB_ATY_GENERIC_LCD
1444         if (par->lcd_table != 0) {
1445                 /* LCD registers */
1446                 base = 0x00;
1447                 printk("debug atyfb: LCD register values:");
1448                 if(M64_HAS(LT_LCD_REGS)) {
1449                     for(i = 0; i <= POWER_MANAGEMENT; i++) {
1450                         if(i == EXT_VERT_STRETCH)
1451                             continue;
1452                         printk("\ndebug atyfb: 0x%04X: ", lt_lcd_regs[i]);
1453                         printk(" %08X", aty_ld_lcd(i, par));
1454                     }
1455
1456                 } else {
1457                     for (i = 0; i < 64; i++) {
1458                         if(i%4 == 0) printk("\ndebug atyfb: 0x%02X: ", base + i);
1459                         printk(" %08X", aty_ld_lcd(i, par));
1460                     }
1461                 }
1462                 printk("\n\n");
1463         }
1464 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
1465 }
1466 #endif /* DEBUG */
1467         return 0;
1468 }
1469
1470 static int atyfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1471 {
1472         struct atyfb_par *par = (struct atyfb_par *) info->par;
1473         int err;
1474         struct crtc crtc;
1475         union aty_pll pll;
1476         u32 pixclock;
1477
1478         memcpy(&pll, &(par->pll), sizeof(pll));
1479
1480         if((err = aty_var_to_crtc(info, var, &crtc)))
1481                 return err;
1482
1483         pixclock = atyfb_get_pixclock(var, par);
1484
1485         if (pixclock == 0) {
1486                 if (!(var->activate & FB_ACTIVATE_TEST))
1487                         PRINTKE("Invalid pixclock\n");
1488                 return -EINVAL;
1489         } else {
1490                 if((err = par->pll_ops->var_to_pll(info, pixclock, var->bits_per_pixel, &pll)))
1491                         return err;
1492         }
1493
1494         if (var->accel_flags & FB_ACCELF_TEXT)
1495                 info->var.accel_flags = FB_ACCELF_TEXT;
1496         else
1497                 info->var.accel_flags = 0;
1498
1499         aty_crtc_to_var(&crtc, var);
1500         var->pixclock = par->pll_ops->pll_to_var(info, &pll);
1501         return 0;
1502 }
1503
1504 static void set_off_pitch(struct atyfb_par *par, const struct fb_info *info)
1505 {
1506         u32 xoffset = info->var.xoffset;
1507         u32 yoffset = info->var.yoffset;
1508         u32 vxres = par->crtc.vxres;
1509         u32 bpp = info->var.bits_per_pixel;
1510
1511         par->crtc.off_pitch = ((yoffset * vxres + xoffset) * bpp / 64) | (vxres << 19);
1512 }
1513
1514
1515     /*
1516      *  Open/Release the frame buffer device
1517      */
1518
1519 static int atyfb_open(struct fb_info *info, int user)
1520 {
1521         struct atyfb_par *par = (struct atyfb_par *) info->par;
1522
1523         if (user) {
1524                 par->open++;
1525 #ifdef __sparc__
1526                 par->mmaped = 0;
1527 #endif
1528         }
1529         return (0);
1530 }
1531
1532 static irqreturn_t aty_irq(int irq, void *dev_id)
1533 {
1534         struct atyfb_par *par = dev_id;
1535         int handled = 0;
1536         u32 int_cntl;
1537
1538         spin_lock(&par->int_lock);
1539
1540         int_cntl = aty_ld_le32(CRTC_INT_CNTL, par);
1541
1542         if (int_cntl & CRTC_VBLANK_INT) {
1543                 /* clear interrupt */
1544                 aty_st_le32(CRTC_INT_CNTL, (int_cntl & CRTC_INT_EN_MASK) | CRTC_VBLANK_INT_AK, par);
1545                 par->vblank.count++;
1546                 if (par->vblank.pan_display) {
1547                         par->vblank.pan_display = 0;
1548                         aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par);
1549                 }
1550                 wake_up_interruptible(&par->vblank.wait);
1551                 handled = 1;
1552         }
1553
1554         spin_unlock(&par->int_lock);
1555
1556         return IRQ_RETVAL(handled);
1557 }
1558
1559 static int aty_enable_irq(struct atyfb_par *par, int reenable)
1560 {
1561         u32 int_cntl;
1562
1563         if (!test_and_set_bit(0, &par->irq_flags)) {
1564                 if (request_irq(par->irq, aty_irq, IRQF_SHARED, "atyfb", par)) {
1565                         clear_bit(0, &par->irq_flags);
1566                         return -EINVAL;
1567                 }
1568                 spin_lock_irq(&par->int_lock);
1569                 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK;
1570                 /* clear interrupt */
1571                 aty_st_le32(CRTC_INT_CNTL, int_cntl | CRTC_VBLANK_INT_AK, par);
1572                 /* enable interrupt */
1573                 aty_st_le32(CRTC_INT_CNTL, int_cntl | CRTC_VBLANK_INT_EN, par);
1574                 spin_unlock_irq(&par->int_lock);
1575         } else if (reenable) {
1576                 spin_lock_irq(&par->int_lock);
1577                 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK;
1578                 if (!(int_cntl & CRTC_VBLANK_INT_EN)) {
1579                         printk("atyfb: someone disabled IRQ [%08x]\n", int_cntl);
1580                         /* re-enable interrupt */
1581                         aty_st_le32(CRTC_INT_CNTL, int_cntl | CRTC_VBLANK_INT_EN, par );
1582                 }
1583                 spin_unlock_irq(&par->int_lock);
1584         }
1585
1586         return 0;
1587 }
1588
1589 static int aty_disable_irq(struct atyfb_par *par)
1590 {
1591         u32 int_cntl;
1592
1593         if (test_and_clear_bit(0, &par->irq_flags)) {
1594                 if (par->vblank.pan_display) {
1595                         par->vblank.pan_display = 0;
1596                         aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par);
1597                 }
1598                 spin_lock_irq(&par->int_lock);
1599                 int_cntl = aty_ld_le32(CRTC_INT_CNTL, par) & CRTC_INT_EN_MASK;
1600                 /* disable interrupt */
1601                 aty_st_le32(CRTC_INT_CNTL, int_cntl & ~CRTC_VBLANK_INT_EN, par );
1602                 spin_unlock_irq(&par->int_lock);
1603                 free_irq(par->irq, par);
1604         }
1605
1606         return 0;
1607 }
1608
1609 static int atyfb_release(struct fb_info *info, int user)
1610 {
1611         struct atyfb_par *par = (struct atyfb_par *) info->par;
1612         if (user) {
1613                 par->open--;
1614                 mdelay(1);
1615                 wait_for_idle(par);
1616                 if (!par->open) {
1617 #ifdef __sparc__
1618                         int was_mmaped = par->mmaped;
1619
1620                         par->mmaped = 0;
1621
1622                         if (was_mmaped) {
1623                                 struct fb_var_screeninfo var;
1624
1625                                 /* Now reset the default display config, we have no
1626                                  * idea what the program(s) which mmap'd the chip did
1627                                  * to the configuration, nor whether it restored it
1628                                  * correctly.
1629                                  */
1630                                 var = default_var;
1631                                 if (noaccel)
1632                                         var.accel_flags &= ~FB_ACCELF_TEXT;
1633                                 else
1634                                         var.accel_flags |= FB_ACCELF_TEXT;
1635                                 if (var.yres == var.yres_virtual) {
1636                                         u32 videoram = (info->fix.smem_len - (PAGE_SIZE << 2));
1637                                         var.yres_virtual = ((videoram * 8) / var.bits_per_pixel) / var.xres_virtual;
1638                                         if (var.yres_virtual < var.yres)
1639                                                 var.yres_virtual = var.yres;
1640                                 }
1641                         }
1642 #endif
1643                         aty_disable_irq(par);
1644                 }
1645         }
1646         return (0);
1647 }
1648
1649     /*
1650      *  Pan or Wrap the Display
1651      *
1652      *  This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
1653      */
1654
1655 static int atyfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
1656 {
1657         struct atyfb_par *par = (struct atyfb_par *) info->par;
1658         u32 xres, yres, xoffset, yoffset;
1659
1660         xres = (((par->crtc.h_tot_disp >> 16) & 0xff) + 1) * 8;
1661         yres = ((par->crtc.v_tot_disp >> 16) & 0x7ff) + 1;
1662         if (par->crtc.gen_cntl & CRTC_DBL_SCAN_EN)
1663                 yres >>= 1;
1664         xoffset = (var->xoffset + 7) & ~7;
1665         yoffset = var->yoffset;
1666         if (xoffset + xres > par->crtc.vxres || yoffset + yres > par->crtc.vyres)
1667                 return -EINVAL;
1668         info->var.xoffset = xoffset;
1669         info->var.yoffset = yoffset;
1670         if (par->asleep)
1671                 return 0;
1672
1673         set_off_pitch(par, info);
1674         if ((var->activate & FB_ACTIVATE_VBL) && !aty_enable_irq(par, 0)) {
1675                 par->vblank.pan_display = 1;
1676         } else {
1677                 par->vblank.pan_display = 0;
1678                 aty_st_le32(CRTC_OFF_PITCH, par->crtc.off_pitch, par);
1679         }
1680
1681         return 0;
1682 }
1683
1684 static int aty_waitforvblank(struct atyfb_par *par, u32 crtc)
1685 {
1686         struct aty_interrupt *vbl;
1687         unsigned int count;
1688         int ret;
1689
1690         switch (crtc) {
1691         case 0:
1692                 vbl = &par->vblank;
1693                 break;
1694         default:
1695                 return -ENODEV;
1696         }
1697
1698         ret = aty_enable_irq(par, 0);
1699         if (ret)
1700                 return ret;
1701
1702         count = vbl->count;
1703         ret = wait_event_interruptible_timeout(vbl->wait, count != vbl->count, HZ/10);
1704         if (ret < 0) {
1705                 return ret;
1706         }
1707         if (ret == 0) {
1708                 aty_enable_irq(par, 1);
1709                 return -ETIMEDOUT;
1710         }
1711
1712         return 0;
1713 }
1714
1715
1716 #ifdef DEBUG
1717 #define ATYIO_CLKR              0x41545900      /* ATY\00 */
1718 #define ATYIO_CLKW              0x41545901      /* ATY\01 */
1719
1720 struct atyclk {
1721         u32 ref_clk_per;
1722         u8 pll_ref_div;
1723         u8 mclk_fb_div;
1724         u8 mclk_post_div;       /* 1,2,3,4,8 */
1725         u8 mclk_fb_mult;        /* 2 or 4 */
1726         u8 xclk_post_div;       /* 1,2,3,4,8 */
1727         u8 vclk_fb_div;
1728         u8 vclk_post_div;       /* 1,2,3,4,6,8,12 */
1729         u32 dsp_xclks_per_row;  /* 0-16383 */
1730         u32 dsp_loop_latency;   /* 0-15 */
1731         u32 dsp_precision;      /* 0-7 */
1732         u32 dsp_on;             /* 0-2047 */
1733         u32 dsp_off;            /* 0-2047 */
1734 };
1735
1736 #define ATYIO_FEATR             0x41545902      /* ATY\02 */
1737 #define ATYIO_FEATW             0x41545903      /* ATY\03 */
1738 #endif
1739
1740 #ifndef FBIO_WAITFORVSYNC
1741 #define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
1742 #endif
1743
1744 static int atyfb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
1745 {
1746         struct atyfb_par *par = (struct atyfb_par *) info->par;
1747 #ifdef __sparc__
1748         struct fbtype fbtyp;
1749 #endif
1750
1751         switch (cmd) {
1752 #ifdef __sparc__
1753         case FBIOGTYPE:
1754                 fbtyp.fb_type = FBTYPE_PCI_GENERIC;
1755                 fbtyp.fb_width = par->crtc.vxres;
1756                 fbtyp.fb_height = par->crtc.vyres;
1757                 fbtyp.fb_depth = info->var.bits_per_pixel;
1758                 fbtyp.fb_cmsize = info->cmap.len;
1759                 fbtyp.fb_size = info->fix.smem_len;
1760                 if (copy_to_user((struct fbtype __user *) arg, &fbtyp, sizeof(fbtyp)))
1761                         return -EFAULT;
1762                 break;
1763 #endif /* __sparc__ */
1764
1765         case FBIO_WAITFORVSYNC:
1766                 {
1767                         u32 crtc;
1768
1769                         if (get_user(crtc, (__u32 __user *) arg))
1770                                 return -EFAULT;
1771
1772                         return aty_waitforvblank(par, crtc);
1773                 }
1774                 break;
1775
1776 #if defined(DEBUG) && defined(CONFIG_FB_ATY_CT)
1777         case ATYIO_CLKR:
1778                 if (M64_HAS(INTEGRATED)) {
1779                         struct atyclk clk;
1780                         union aty_pll *pll = &(par->pll);
1781                         u32 dsp_config = pll->ct.dsp_config;
1782                         u32 dsp_on_off = pll->ct.dsp_on_off;
1783                         clk.ref_clk_per = par->ref_clk_per;
1784                         clk.pll_ref_div = pll->ct.pll_ref_div;
1785                         clk.mclk_fb_div = pll->ct.mclk_fb_div;
1786                         clk.mclk_post_div = pll->ct.mclk_post_div_real;
1787                         clk.mclk_fb_mult = pll->ct.mclk_fb_mult;
1788                         clk.xclk_post_div = pll->ct.xclk_post_div_real;
1789                         clk.vclk_fb_div = pll->ct.vclk_fb_div;
1790                         clk.vclk_post_div = pll->ct.vclk_post_div_real;
1791                         clk.dsp_xclks_per_row = dsp_config & 0x3fff;
1792                         clk.dsp_loop_latency = (dsp_config >> 16) & 0xf;
1793                         clk.dsp_precision = (dsp_config >> 20) & 7;
1794                         clk.dsp_off = dsp_on_off & 0x7ff;
1795                         clk.dsp_on = (dsp_on_off >> 16) & 0x7ff;
1796                         if (copy_to_user((struct atyclk __user *) arg, &clk,
1797                                          sizeof(clk)))
1798                                 return -EFAULT;
1799                 } else
1800                         return -EINVAL;
1801                 break;
1802         case ATYIO_CLKW:
1803                 if (M64_HAS(INTEGRATED)) {
1804                         struct atyclk clk;
1805                         union aty_pll *pll = &(par->pll);
1806                         if (copy_from_user(&clk, (struct atyclk __user *) arg, sizeof(clk)))
1807                                 return -EFAULT;
1808                         par->ref_clk_per = clk.ref_clk_per;
1809                         pll->ct.pll_ref_div = clk.pll_ref_div;
1810                         pll->ct.mclk_fb_div = clk.mclk_fb_div;
1811                         pll->ct.mclk_post_div_real = clk.mclk_post_div;
1812                         pll->ct.mclk_fb_mult = clk.mclk_fb_mult;
1813                         pll->ct.xclk_post_div_real = clk.xclk_post_div;
1814                         pll->ct.vclk_fb_div = clk.vclk_fb_div;
1815                         pll->ct.vclk_post_div_real = clk.vclk_post_div;
1816                         pll->ct.dsp_config = (clk.dsp_xclks_per_row & 0x3fff) |
1817                                 ((clk.dsp_loop_latency & 0xf)<<16)| ((clk.dsp_precision & 7)<<20);
1818                         pll->ct.dsp_on_off = (clk.dsp_off & 0x7ff) | ((clk.dsp_on & 0x7ff)<<16);
1819                         /*aty_calc_pll_ct(info, &pll->ct);*/
1820                         aty_set_pll_ct(info, pll);
1821                 } else
1822                         return -EINVAL;
1823                 break;
1824         case ATYIO_FEATR:
1825                 if (get_user(par->features, (u32 __user *) arg))
1826                         return -EFAULT;
1827                 break;
1828         case ATYIO_FEATW:
1829                 if (put_user(par->features, (u32 __user *) arg))
1830                         return -EFAULT;
1831                 break;
1832 #endif /* DEBUG && CONFIG_FB_ATY_CT */
1833         default:
1834                 return -EINVAL;
1835         }
1836         return 0;
1837 }
1838
1839 static int atyfb_sync(struct fb_info *info)
1840 {
1841         struct atyfb_par *par = (struct atyfb_par *) info->par;
1842
1843         if (par->blitter_may_be_busy)
1844                 wait_for_idle(par);
1845         return 0;
1846 }
1847
1848 #ifdef __sparc__
1849 static int atyfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1850 {
1851         struct atyfb_par *par = (struct atyfb_par *) info->par;
1852         unsigned int size, page, map_size = 0;
1853         unsigned long map_offset = 0;
1854         unsigned long off;
1855         int i;
1856
1857         if (!par->mmap_map)
1858                 return -ENXIO;
1859
1860         if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
1861                 return -EINVAL;
1862
1863         off = vma->vm_pgoff << PAGE_SHIFT;
1864         size = vma->vm_end - vma->vm_start;
1865
1866         /* To stop the swapper from even considering these pages. */
1867         vma->vm_flags |= (VM_IO | VM_RESERVED);
1868
1869         if (((vma->vm_pgoff == 0) && (size == info->fix.smem_len)) ||
1870             ((off == info->fix.smem_len) && (size == PAGE_SIZE)))
1871                 off += 0x8000000000000000UL;
1872
1873         vma->vm_pgoff = off >> PAGE_SHIFT;      /* propagate off changes */
1874
1875         /* Each page, see which map applies */
1876         for (page = 0; page < size;) {
1877                 map_size = 0;
1878                 for (i = 0; par->mmap_map[i].size; i++) {
1879                         unsigned long start = par->mmap_map[i].voff;
1880                         unsigned long end = start + par->mmap_map[i].size;
1881                         unsigned long offset = off + page;
1882
1883                         if (start > offset)
1884                                 continue;
1885                         if (offset >= end)
1886                                 continue;
1887
1888                         map_size = par->mmap_map[i].size - (offset - start);
1889                         map_offset =
1890                             par->mmap_map[i].poff + (offset - start);
1891                         break;
1892                 }
1893                 if (!map_size) {
1894                         page += PAGE_SIZE;
1895                         continue;
1896                 }
1897                 if (page + map_size > size)
1898                         map_size = size - page;
1899
1900                 pgprot_val(vma->vm_page_prot) &=
1901                     ~(par->mmap_map[i].prot_mask);
1902                 pgprot_val(vma->vm_page_prot) |= par->mmap_map[i].prot_flag;
1903
1904                 if (remap_pfn_range(vma, vma->vm_start + page,
1905                         map_offset >> PAGE_SHIFT, map_size, vma->vm_page_prot))
1906                         return -EAGAIN;
1907
1908                 page += map_size;
1909         }
1910
1911         if (!map_size)
1912                 return -EINVAL;
1913
1914         if (!par->mmaped)
1915                 par->mmaped = 1;
1916         return 0;
1917 }
1918 #endif /* __sparc__ */
1919
1920
1921
1922 #if defined(CONFIG_PM) && defined(CONFIG_PCI)
1923
1924 #ifdef CONFIG_PPC_PMAC
1925 /* Power management routines. Those are used for PowerBook sleep.
1926  */
1927 static int aty_power_mgmt(int sleep, struct atyfb_par *par)
1928 {
1929         u32 pm;
1930         int timeout;
1931
1932         pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1933         pm = (pm & ~PWR_MGT_MODE_MASK) | PWR_MGT_MODE_REG;
1934         aty_st_lcd(POWER_MANAGEMENT, pm, par);
1935         pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1936
1937         timeout = 2000;
1938         if (sleep) {
1939                 /* Sleep */
1940                 pm &= ~PWR_MGT_ON;
1941                 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1942                 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1943                 udelay(10);
1944                 pm &= ~(PWR_BLON | AUTO_PWR_UP);
1945                 pm |= SUSPEND_NOW;
1946                 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1947                 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1948                 udelay(10);
1949                 pm |= PWR_MGT_ON;
1950                 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1951                 do {
1952                         pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1953                         mdelay(1);
1954                         if ((--timeout) == 0)
1955                                 break;
1956                 } while ((pm & PWR_MGT_STATUS_MASK) != PWR_MGT_STATUS_SUSPEND);
1957         } else {
1958                 /* Wakeup */
1959                 pm &= ~PWR_MGT_ON;
1960                 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1961                 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1962                 udelay(10);
1963                 pm &= ~SUSPEND_NOW;
1964                 pm |= (PWR_BLON | AUTO_PWR_UP);
1965                 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1966                 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1967                 udelay(10);
1968                 pm |= PWR_MGT_ON;
1969                 aty_st_lcd(POWER_MANAGEMENT, pm, par);
1970                 do {
1971                         pm = aty_ld_lcd(POWER_MANAGEMENT, par);
1972                         mdelay(1);
1973                         if ((--timeout) == 0)
1974                                 break;
1975                 } while ((pm & PWR_MGT_STATUS_MASK) != 0);
1976         }
1977         mdelay(500);
1978
1979         return timeout ? 0 : -EIO;
1980 }
1981 #endif
1982
1983 static int atyfb_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1984 {
1985         struct fb_info *info = pci_get_drvdata(pdev);
1986         struct atyfb_par *par = (struct atyfb_par *) info->par;
1987
1988         if (state.event == pdev->dev.power.power_state.event)
1989                 return 0;
1990
1991         acquire_console_sem();
1992
1993         fb_set_suspend(info, 1);
1994
1995         /* Idle & reset engine */
1996         wait_for_idle(par);
1997         aty_reset_engine(par);
1998
1999         /* Blank display and LCD */
2000         atyfb_blank(FB_BLANK_POWERDOWN, info);
2001
2002         par->asleep = 1;
2003         par->lock_blank = 1;
2004
2005 #ifdef CONFIG_PPC_PMAC
2006         /* Set chip to "suspend" mode */
2007         if (aty_power_mgmt(1, par)) {
2008                 par->asleep = 0;
2009                 par->lock_blank = 0;
2010                 atyfb_blank(FB_BLANK_UNBLANK, info);
2011                 fb_set_suspend(info, 0);
2012                 release_console_sem();
2013                 return -EIO;
2014         }
2015 #else
2016         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2017 #endif
2018
2019         release_console_sem();
2020
2021         pdev->dev.power.power_state = state;
2022
2023         return 0;
2024 }
2025
2026 static void aty_resume_chip(struct fb_info *info)
2027 {
2028         struct atyfb_par *par = info->par;
2029
2030         aty_st_le32(MEM_CNTL, par->mem_cntl, par);
2031
2032         if (par->pll_ops->resume_pll)
2033                 par->pll_ops->resume_pll(info, &par->pll);
2034
2035         if (par->aux_start)
2036                 aty_st_le32(BUS_CNTL,
2037                         aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par);
2038 }
2039
2040 static int atyfb_pci_resume(struct pci_dev *pdev)
2041 {
2042         struct fb_info *info = pci_get_drvdata(pdev);
2043         struct atyfb_par *par = (struct atyfb_par *) info->par;
2044
2045         if (pdev->dev.power.power_state.event == PM_EVENT_ON)
2046                 return 0;
2047
2048         acquire_console_sem();
2049
2050 #ifdef CONFIG_PPC_PMAC
2051         if (pdev->dev.power.power_state.event == 2)
2052                 aty_power_mgmt(0, par);
2053 #else
2054         pci_set_power_state(pdev, PCI_D0);
2055 #endif
2056
2057         aty_resume_chip(info);
2058
2059         par->asleep = 0;
2060
2061         /* Restore display */
2062         atyfb_set_par(info);
2063
2064         /* Refresh */
2065         fb_set_suspend(info, 0);
2066
2067         /* Unblank */
2068         par->lock_blank = 0;
2069         atyfb_blank(FB_BLANK_UNBLANK, info);
2070
2071         release_console_sem();
2072
2073         pdev->dev.power.power_state = PMSG_ON;
2074
2075         return 0;
2076 }
2077
2078 #endif /*  defined(CONFIG_PM) && defined(CONFIG_PCI) */
2079
2080 /* Backlight */
2081 #ifdef CONFIG_FB_ATY_BACKLIGHT
2082 #define MAX_LEVEL 0xFF
2083
2084 static int aty_bl_get_level_brightness(struct atyfb_par *par, int level)
2085 {
2086         struct fb_info *info = pci_get_drvdata(par->pdev);
2087         int atylevel;
2088
2089         /* Get and convert the value */
2090         /* No locking of bl_curve since we read a single value */
2091         atylevel = info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_LEVEL;
2092
2093         if (atylevel < 0)
2094                 atylevel = 0;
2095         else if (atylevel > MAX_LEVEL)
2096                 atylevel = MAX_LEVEL;
2097
2098         return atylevel;
2099 }
2100
2101 static int aty_bl_update_status(struct backlight_device *bd)
2102 {
2103         struct atyfb_par *par = bl_get_data(bd);
2104         unsigned int reg = aty_ld_lcd(LCD_MISC_CNTL, par);
2105         int level;
2106
2107         if (bd->props.power != FB_BLANK_UNBLANK ||
2108             bd->props.fb_blank != FB_BLANK_UNBLANK)
2109                 level = 0;
2110         else
2111                 level = bd->props.brightness;
2112
2113         reg |= (BLMOD_EN | BIASMOD_EN);
2114         if (level > 0) {
2115                 reg &= ~BIAS_MOD_LEVEL_MASK;
2116                 reg |= (aty_bl_get_level_brightness(par, level) << BIAS_MOD_LEVEL_SHIFT);
2117         } else {
2118                 reg &= ~BIAS_MOD_LEVEL_MASK;
2119                 reg |= (aty_bl_get_level_brightness(par, 0) << BIAS_MOD_LEVEL_SHIFT);
2120         }
2121         aty_st_lcd(LCD_MISC_CNTL, reg, par);
2122
2123         return 0;
2124 }
2125
2126 static int aty_bl_get_brightness(struct backlight_device *bd)
2127 {
2128         return bd->props.brightness;
2129 }
2130
2131 static struct backlight_ops aty_bl_data = {
2132         .get_brightness = aty_bl_get_brightness,
2133         .update_status  = aty_bl_update_status,
2134 };
2135
2136 static void aty_bl_init(struct atyfb_par *par)
2137 {
2138         struct fb_info *info = pci_get_drvdata(par->pdev);
2139         struct backlight_device *bd;
2140         char name[12];
2141
2142 #ifdef CONFIG_PMAC_BACKLIGHT
2143         if (!pmac_has_backlight_type("ati"))
2144                 return;
2145 #endif
2146
2147         snprintf(name, sizeof(name), "atybl%d", info->node);
2148
2149         bd = backlight_device_register(name, info->dev, par, &aty_bl_data);
2150         if (IS_ERR(bd)) {
2151                 info->bl_dev = NULL;
2152                 printk(KERN_WARNING "aty: Backlight registration failed\n");
2153                 goto error;
2154         }
2155
2156         info->bl_dev = bd;
2157         fb_bl_default_curve(info, 0,
2158                 0x3F * FB_BACKLIGHT_MAX / MAX_LEVEL,
2159                 0xFF * FB_BACKLIGHT_MAX / MAX_LEVEL);
2160
2161         bd->props.max_brightness = FB_BACKLIGHT_LEVELS - 1;
2162         bd->props.brightness = bd->props.max_brightness;
2163         bd->props.power = FB_BLANK_UNBLANK;
2164         backlight_update_status(bd);
2165
2166         printk("aty: Backlight initialized (%s)\n", name);
2167
2168         return;
2169
2170 error:
2171         return;
2172 }
2173
2174 static void aty_bl_exit(struct backlight_device *bd)
2175 {
2176         backlight_device_unregister(bd);
2177         printk("aty: Backlight unloaded\n");
2178 }
2179
2180 #endif /* CONFIG_FB_ATY_BACKLIGHT */
2181
2182 static void __devinit aty_calc_mem_refresh(struct atyfb_par *par, int xclk)
2183 {
2184         const int ragepro_tbl[] = {
2185                 44, 50, 55, 66, 75, 80, 100
2186         };
2187         const int ragexl_tbl[] = {
2188                 50, 66, 75, 83, 90, 95, 100, 105,
2189                 110, 115, 120, 125, 133, 143, 166
2190         };
2191         const int *refresh_tbl;
2192         int i, size;
2193
2194         if (IS_XL(par->pci_id) || IS_MOBILITY(par->pci_id)) {
2195                 refresh_tbl = ragexl_tbl;
2196                 size = ARRAY_SIZE(ragexl_tbl);
2197         } else {
2198                 refresh_tbl = ragepro_tbl;
2199                 size = ARRAY_SIZE(ragepro_tbl);
2200         }
2201
2202         for (i=0; i < size; i++) {
2203                 if (xclk < refresh_tbl[i])
2204                 break;
2205         }
2206         par->mem_refresh_rate = i;
2207 }
2208
2209     /*
2210      *  Initialisation
2211      */
2212
2213 static struct fb_info *fb_list = NULL;
2214
2215 #if defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD)
2216 static int __devinit atyfb_get_timings_from_lcd(struct atyfb_par *par,
2217                                                 struct fb_var_screeninfo *var)
2218 {
2219         int ret = -EINVAL;
2220
2221         if (par->lcd_table != 0 && (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
2222                 *var = default_var;
2223                 var->xres = var->xres_virtual = par->lcd_hdisp;
2224                 var->right_margin = par->lcd_right_margin;
2225                 var->left_margin = par->lcd_hblank_len -
2226                         (par->lcd_right_margin + par->lcd_hsync_dly +
2227                          par->lcd_hsync_len);
2228                 var->hsync_len = par->lcd_hsync_len + par->lcd_hsync_dly;
2229                 var->yres = var->yres_virtual = par->lcd_vdisp;
2230                 var->lower_margin = par->lcd_lower_margin;
2231                 var->upper_margin = par->lcd_vblank_len -
2232                         (par->lcd_lower_margin + par->lcd_vsync_len);
2233                 var->vsync_len = par->lcd_vsync_len;
2234                 var->pixclock = par->lcd_pixclock;
2235                 ret = 0;
2236         }
2237
2238         return ret;
2239 }
2240 #endif /* defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD) */
2241
2242 static int __devinit aty_init(struct fb_info *info)
2243 {
2244         struct atyfb_par *par = (struct atyfb_par *) info->par;
2245         const char *ramname = NULL, *xtal;
2246         int gtb_memsize, has_var = 0;
2247         struct fb_var_screeninfo var;
2248         int ret;
2249
2250         init_waitqueue_head(&par->vblank.wait);
2251         spin_lock_init(&par->int_lock);
2252
2253 #ifdef CONFIG_FB_ATY_GX
2254         if (!M64_HAS(INTEGRATED)) {
2255                 u32 stat0;
2256                 u8 dac_type, dac_subtype, clk_type;
2257                 stat0 = aty_ld_le32(CONFIG_STAT0, par);
2258                 par->bus_type = (stat0 >> 0) & 0x07;
2259                 par->ram_type = (stat0 >> 3) & 0x07;
2260                 ramname = aty_gx_ram[par->ram_type];
2261                 /* FIXME: clockchip/RAMDAC probing? */
2262                 dac_type = (aty_ld_le32(DAC_CNTL, par) >> 16) & 0x07;
2263 #ifdef CONFIG_ATARI
2264                 clk_type = CLK_ATI18818_1;
2265                 dac_type = (stat0 >> 9) & 0x07;
2266                 if (dac_type == 0x07)
2267                         dac_subtype = DAC_ATT20C408;
2268                 else
2269                         dac_subtype = (aty_ld_8(SCRATCH_REG1 + 1, par) & 0xF0) | dac_type;
2270 #else
2271                 dac_type = DAC_IBMRGB514;
2272                 dac_subtype = DAC_IBMRGB514;
2273                 clk_type = CLK_IBMRGB514;
2274 #endif
2275                 switch (dac_subtype) {
2276                 case DAC_IBMRGB514:
2277                         par->dac_ops = &aty_dac_ibm514;
2278                         break;
2279 #ifdef CONFIG_ATARI
2280                 case DAC_ATI68860_B:
2281                 case DAC_ATI68860_C:
2282                         par->dac_ops = &aty_dac_ati68860b;
2283                         break;
2284                 case DAC_ATT20C408:
2285                 case DAC_ATT21C498:
2286                         par->dac_ops = &aty_dac_att21c498;
2287                         break;
2288 #endif
2289                 default:
2290                         PRINTKI("aty_init: DAC type not implemented yet!\n");
2291                         par->dac_ops = &aty_dac_unsupported;
2292                         break;
2293                 }
2294                 switch (clk_type) {
2295 #ifdef CONFIG_ATARI
2296                 case CLK_ATI18818_1:
2297                         par->pll_ops = &aty_pll_ati18818_1;
2298                         break;
2299 #else
2300                 case CLK_IBMRGB514:
2301                         par->pll_ops = &aty_pll_ibm514;
2302                         break;
2303 #endif
2304 #if 0 /* dead code */
2305                 case CLK_STG1703:
2306                         par->pll_ops = &aty_pll_stg1703;
2307                         break;
2308                 case CLK_CH8398:
2309                         par->pll_ops = &aty_pll_ch8398;
2310                         break;
2311                 case CLK_ATT20C408:
2312                         par->pll_ops = &aty_pll_att20c408;
2313                         break;
2314 #endif
2315                 default:
2316                         PRINTKI("aty_init: CLK type not implemented yet!");
2317                         par->pll_ops = &aty_pll_unsupported;
2318                         break;
2319                 }
2320         }
2321 #endif /* CONFIG_FB_ATY_GX */
2322 #ifdef CONFIG_FB_ATY_CT
2323         if (M64_HAS(INTEGRATED)) {
2324                 par->dac_ops = &aty_dac_ct;
2325                 par->pll_ops = &aty_pll_ct;
2326                 par->bus_type = PCI;
2327                 par->ram_type = (aty_ld_le32(CONFIG_STAT0, par) & 0x07);
2328                 ramname = aty_ct_ram[par->ram_type];
2329                 /* for many chips, the mclk is 67 MHz for SDRAM, 63 MHz otherwise */
2330                 if (par->pll_limits.mclk == 67 && par->ram_type < SDRAM)
2331                         par->pll_limits.mclk = 63;
2332                 /* Mobility + 32bit memory interface need halved XCLK. */
2333                 if (M64_HAS(MOBIL_BUS) && par->ram_type == SDRAM32)
2334                         par->pll_limits.xclk = (par->pll_limits.xclk + 1) >> 1;
2335         }
2336 #endif
2337 #ifdef CONFIG_PPC_PMAC
2338         /* The Apple iBook1 uses non-standard memory frequencies. We detect it
2339          * and set the frequency manually. */
2340         if (machine_is_compatible("PowerBook2,1")) {
2341                 par->pll_limits.mclk = 70;
2342                 par->pll_limits.xclk = 53;
2343         }
2344 #endif
2345
2346         /* Allow command line to override clocks. */
2347         if (pll)
2348                 par->pll_limits.pll_max = pll;
2349         if (mclk)
2350                 par->pll_limits.mclk = mclk;
2351         if (xclk)
2352                 par->pll_limits.xclk = xclk;
2353
2354         aty_calc_mem_refresh(par, par->pll_limits.xclk);
2355         par->pll_per = 1000000/par->pll_limits.pll_max;
2356         par->mclk_per = 1000000/par->pll_limits.mclk;
2357         par->xclk_per = 1000000/par->pll_limits.xclk;
2358
2359         par->ref_clk_per = 1000000000000ULL / 14318180;
2360         xtal = "14.31818";
2361
2362 #ifdef CONFIG_FB_ATY_CT
2363         if (M64_HAS(GTB_DSP)) {
2364                 u8 pll_ref_div = aty_ld_pll_ct(PLL_REF_DIV, par);
2365
2366                 if (pll_ref_div) {
2367                         int diff1, diff2;
2368                         diff1 = 510 * 14 / pll_ref_div - par->pll_limits.pll_max;
2369                         diff2 = 510 * 29 / pll_ref_div - par->pll_limits.pll_max;
2370                         if (diff1 < 0)
2371                                 diff1 = -diff1;
2372                         if (diff2 < 0)
2373                                 diff2 = -diff2;
2374                         if (diff2 < diff1) {
2375                                 par->ref_clk_per = 1000000000000ULL / 29498928;
2376                                 xtal = "29.498928";
2377                         }
2378                 }
2379         }
2380 #endif /* CONFIG_FB_ATY_CT */
2381
2382         /* save previous video mode */
2383         aty_get_crtc(par, &saved_crtc);
2384         if(par->pll_ops->get_pll)
2385                 par->pll_ops->get_pll(info, &saved_pll);
2386
2387         par->mem_cntl = aty_ld_le32(MEM_CNTL, par);
2388         gtb_memsize = M64_HAS(GTB_DSP);
2389         if (gtb_memsize)
2390                 switch (par->mem_cntl & 0xF) {  /* 0xF used instead of MEM_SIZE_ALIAS */
2391                 case MEM_SIZE_512K:
2392                         info->fix.smem_len = 0x80000;
2393                         break;
2394                 case MEM_SIZE_1M:
2395                         info->fix.smem_len = 0x100000;
2396                         break;
2397                 case MEM_SIZE_2M_GTB:
2398                         info->fix.smem_len = 0x200000;
2399                         break;
2400                 case MEM_SIZE_4M_GTB:
2401                         info->fix.smem_len = 0x400000;
2402                         break;
2403                 case MEM_SIZE_6M_GTB:
2404                         info->fix.smem_len = 0x600000;
2405                         break;
2406                 case MEM_SIZE_8M_GTB:
2407                         info->fix.smem_len = 0x800000;
2408                         break;
2409                 default:
2410                         info->fix.smem_len = 0x80000;
2411         } else
2412                 switch (par->mem_cntl & MEM_SIZE_ALIAS) {
2413                 case MEM_SIZE_512K:
2414                         info->fix.smem_len = 0x80000;
2415                         break;
2416                 case MEM_SIZE_1M:
2417                         info->fix.smem_len = 0x100000;
2418                         break;
2419                 case MEM_SIZE_2M:
2420                         info->fix.smem_len = 0x200000;
2421                         break;
2422                 case MEM_SIZE_4M:
2423                         info->fix.smem_len = 0x400000;
2424                         break;
2425                 case MEM_SIZE_6M:
2426                         info->fix.smem_len = 0x600000;
2427                         break;
2428                 case MEM_SIZE_8M:
2429                         info->fix.smem_len = 0x800000;
2430                         break;
2431                 default:
2432                         info->fix.smem_len = 0x80000;
2433                 }
2434
2435         if (M64_HAS(MAGIC_VRAM_SIZE)) {
2436                 if (aty_ld_le32(CONFIG_STAT1, par) & 0x40000000)
2437                         info->fix.smem_len += 0x400000;
2438         }
2439
2440         if (vram) {
2441                 info->fix.smem_len = vram * 1024;
2442                 par->mem_cntl &= ~(gtb_memsize ? 0xF : MEM_SIZE_ALIAS);
2443                 if (info->fix.smem_len <= 0x80000)
2444                         par->mem_cntl |= MEM_SIZE_512K;
2445                 else if (info->fix.smem_len <= 0x100000)
2446                         par->mem_cntl |= MEM_SIZE_1M;
2447                 else if (info->fix.smem_len <= 0x200000)
2448                         par->mem_cntl |= gtb_memsize ? MEM_SIZE_2M_GTB : MEM_SIZE_2M;
2449                 else if (info->fix.smem_len <= 0x400000)
2450                         par->mem_cntl |= gtb_memsize ? MEM_SIZE_4M_GTB : MEM_SIZE_4M;
2451                 else if (info->fix.smem_len <= 0x600000)
2452                         par->mem_cntl |= gtb_memsize ? MEM_SIZE_6M_GTB : MEM_SIZE_6M;
2453                 else
2454                         par->mem_cntl |= gtb_memsize ? MEM_SIZE_8M_GTB : MEM_SIZE_8M;
2455                 aty_st_le32(MEM_CNTL, par->mem_cntl, par);
2456         }
2457
2458         /*
2459          *  Reg Block 0 (CT-compatible block) is at mmio_start
2460          *  Reg Block 1 (multimedia extensions) is at mmio_start - 0x400
2461          */
2462         if (M64_HAS(GX)) {
2463                 info->fix.mmio_len = 0x400;
2464                 info->fix.accel = FB_ACCEL_ATI_MACH64GX;
2465         } else if (M64_HAS(CT)) {
2466                 info->fix.mmio_len = 0x400;
2467                 info->fix.accel = FB_ACCEL_ATI_MACH64CT;
2468         } else if (M64_HAS(VT)) {
2469                 info->fix.mmio_start -= 0x400;
2470                 info->fix.mmio_len = 0x800;
2471                 info->fix.accel = FB_ACCEL_ATI_MACH64VT;
2472         } else {/* GT */
2473                 info->fix.mmio_start -= 0x400;
2474                 info->fix.mmio_len = 0x800;
2475                 info->fix.accel = FB_ACCEL_ATI_MACH64GT;
2476         }
2477
2478         PRINTKI("%d%c %s, %s MHz XTAL, %d MHz PLL, %d Mhz MCLK, %d MHz XCLK\n",
2479                info->fix.smem_len == 0x80000 ? 512 : (info->fix.smem_len >> 20),
2480                info->fix.smem_len == 0x80000 ? 'K' : 'M', ramname, xtal, par->pll_limits.pll_max,
2481                par->pll_limits.mclk, par->pll_limits.xclk);
2482
2483 #if defined(DEBUG) && defined(CONFIG_FB_ATY_CT)
2484         if (M64_HAS(INTEGRATED)) {
2485                 int i;
2486                 printk("debug atyfb: BUS_CNTL DAC_CNTL MEM_CNTL EXT_MEM_CNTL CRTC_GEN_CNTL "
2487                        "DSP_CONFIG DSP_ON_OFF CLOCK_CNTL\n"
2488                        "debug atyfb: %08x %08x %08x %08x     %08x      %08x   %08x   %08x\n"
2489                        "debug atyfb: PLL",
2490                         aty_ld_le32(BUS_CNTL, par), aty_ld_le32(DAC_CNTL, par),
2491                         aty_ld_le32(MEM_CNTL, par), aty_ld_le32(EXT_MEM_CNTL, par),
2492                         aty_ld_le32(CRTC_GEN_CNTL, par), aty_ld_le32(DSP_CONFIG, par),
2493                         aty_ld_le32(DSP_ON_OFF, par), aty_ld_le32(CLOCK_CNTL, par));
2494                 for (i = 0; i < 40; i++)
2495                         printk(" %02x", aty_ld_pll_ct(i, par));
2496                 printk("\n");
2497         }
2498 #endif
2499         if(par->pll_ops->init_pll)
2500                 par->pll_ops->init_pll(info, &par->pll);
2501         if (par->pll_ops->resume_pll)
2502                 par->pll_ops->resume_pll(info, &par->pll);
2503
2504         /*
2505          *  Last page of 8 MB (4 MB on ISA) aperture is MMIO,
2506          *  unless the auxiliary register aperture is used.
2507          */
2508
2509         if (!par->aux_start &&
2510                 (info->fix.smem_len == 0x800000 || (par->bus_type == ISA && info->fix.smem_len == 0x400000)))
2511                 info->fix.smem_len -= GUI_RESERVE;
2512
2513         /*
2514          *  Disable register access through the linear aperture
2515          *  if the auxiliary aperture is used so we can access
2516          *  the full 8 MB of video RAM on 8 MB boards.
2517          */
2518         if (par->aux_start)
2519                 aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL, par) | BUS_APER_REG_DIS, par);
2520
2521 #ifdef CONFIG_MTRR
2522         par->mtrr_aper = -1;
2523         par->mtrr_reg = -1;
2524         if (!nomtrr) {
2525                 /* Cover the whole resource. */
2526                  par->mtrr_aper = mtrr_add(par->res_start, par->res_size, MTRR_TYPE_WRCOMB, 1);
2527                  if (par->mtrr_aper >= 0 && !par->aux_start) {
2528                         /* Make a hole for mmio. */
2529                         par->mtrr_reg = mtrr_add(par->res_start + 0x800000 - GUI_RESERVE,
2530                                 GUI_RESERVE, MTRR_TYPE_UNCACHABLE, 1);
2531                         if (par->mtrr_reg < 0) {
2532                                 mtrr_del(par->mtrr_aper, 0, 0);
2533                                 par->mtrr_aper = -1;
2534                         }
2535                  }
2536         }
2537 #endif
2538
2539         info->fbops = &atyfb_ops;
2540         info->pseudo_palette = par->pseudo_palette;
2541         info->flags = FBINFO_DEFAULT           |
2542                       FBINFO_HWACCEL_IMAGEBLIT |
2543                       FBINFO_HWACCEL_FILLRECT  |
2544                       FBINFO_HWACCEL_COPYAREA  |
2545                       FBINFO_HWACCEL_YPAN;
2546
2547 #ifdef CONFIG_PMAC_BACKLIGHT
2548         if (M64_HAS(G3_PB_1_1) && machine_is_compatible("PowerBook1,1")) {
2549                 /* these bits let the 101 powerbook wake up from sleep -- paulus */
2550                 aty_st_lcd(POWER_MANAGEMENT, aty_ld_lcd(POWER_MANAGEMENT, par)
2551                            | (USE_F32KHZ | TRISTATE_MEM_EN), par);
2552         } else
2553 #endif
2554         if (M64_HAS(MOBIL_BUS) && backlight) {
2555 #ifdef CONFIG_FB_ATY_BACKLIGHT
2556                 aty_bl_init (par);
2557 #endif
2558         }
2559
2560         memset(&var, 0, sizeof(var));
2561 #ifdef CONFIG_PPC
2562         if (machine_is(powermac)) {
2563                 /*
2564                  *  FIXME: The NVRAM stuff should be put in a Mac-specific file, as it
2565                  *         applies to all Mac video cards
2566                  */
2567                 if (mode) {
2568                         if (mac_find_mode(&var, info, mode, 8))
2569                                 has_var = 1;
2570                 } else {
2571                         if (default_vmode == VMODE_CHOOSE) {
2572                                 int sense;
2573                                 if (M64_HAS(G3_PB_1024x768))
2574                                         /* G3 PowerBook with 1024x768 LCD */
2575                                         default_vmode = VMODE_1024_768_60;
2576                                 else if (machine_is_compatible("iMac"))
2577                                         default_vmode = VMODE_1024_768_75;
2578                                 else if (machine_is_compatible
2579                                          ("PowerBook2,1"))
2580                                         /* iBook with 800x600 LCD */
2581                                         default_vmode = VMODE_800_600_60;
2582                                 else
2583                                         default_vmode = VMODE_640_480_67;
2584                                 sense = read_aty_sense(par);
2585                                 PRINTKI("monitor sense=%x, mode %d\n",
2586                                         sense,  mac_map_monitor_sense(sense));
2587                         }
2588                         if (default_vmode <= 0 || default_vmode > VMODE_MAX)
2589                                 default_vmode = VMODE_640_480_60;
2590                         if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
2591                                 default_cmode = CMODE_8;
2592                         if (!mac_vmode_to_var(default_vmode, default_cmode,
2593                                                &var))
2594                                 has_var = 1;
2595                 }
2596         }
2597
2598 #endif /* !CONFIG_PPC */
2599
2600 #if defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD)
2601         if (!atyfb_get_timings_from_lcd(par, &var))
2602                 has_var = 1;
2603 #endif
2604
2605         if (mode && fb_find_mode(&var, info, mode, NULL, 0, &defmode, 8))
2606                 has_var = 1;
2607
2608         if (!has_var)
2609                 var = default_var;
2610
2611         if (noaccel)
2612                 var.accel_flags &= ~FB_ACCELF_TEXT;
2613         else
2614                 var.accel_flags |= FB_ACCELF_TEXT;
2615
2616         if (comp_sync != -1) {
2617                 if (!comp_sync)
2618                         var.sync &= ~FB_SYNC_COMP_HIGH_ACT;
2619                 else
2620                         var.sync |= FB_SYNC_COMP_HIGH_ACT;
2621         }
2622
2623         if (var.yres == var.yres_virtual) {
2624                 u32 videoram = (info->fix.smem_len - (PAGE_SIZE << 2));
2625                 var.yres_virtual = ((videoram * 8) / var.bits_per_pixel) / var.xres_virtual;
2626                 if (var.yres_virtual < var.yres)
2627                         var.yres_virtual = var.yres;
2628         }
2629
2630         ret = atyfb_check_var(&var, info);
2631         if (ret) {
2632                 PRINTKE("can't set default video mode\n");
2633                 goto aty_init_exit;
2634         }
2635
2636 #ifdef CONFIG_FB_ATY_CT
2637         if (!noaccel && M64_HAS(INTEGRATED))
2638                 aty_init_cursor(info);
2639 #endif /* CONFIG_FB_ATY_CT */
2640         info->var = var;
2641
2642         ret = fb_alloc_cmap(&info->cmap, 256, 0);
2643         if (ret < 0)
2644                 goto aty_init_exit;
2645
2646         ret = register_framebuffer(info);
2647         if (ret < 0) {
2648                 fb_dealloc_cmap(&info->cmap);
2649                 goto aty_init_exit;
2650         }
2651
2652         fb_list = info;
2653
2654         PRINTKI("fb%d: %s frame buffer device on %s\n",
2655                 info->node, info->fix.id, par->bus_type == ISA ? "ISA" : "PCI");
2656         return 0;
2657
2658 aty_init_exit:
2659         /* restore video mode */
2660         aty_set_crtc(par, &saved_crtc);
2661         par->pll_ops->set_pll(info, &saved_pll);
2662
2663 #ifdef CONFIG_MTRR
2664         if (par->mtrr_reg >= 0) {
2665             mtrr_del(par->mtrr_reg, 0, 0);
2666             par->mtrr_reg = -1;
2667         }
2668         if (par->mtrr_aper >= 0) {
2669             mtrr_del(par->mtrr_aper, 0, 0);
2670             par->mtrr_aper = -1;
2671         }
2672 #endif
2673         return ret;
2674 }
2675
2676 #ifdef CONFIG_ATARI
2677 static int __devinit store_video_par(char *video_str, unsigned char m64_num)
2678 {
2679         char *p;
2680         unsigned long vmembase, size, guiregbase;
2681
2682         PRINTKI("store_video_par() '%s' \n", video_str);
2683
2684         if (!(p = strsep(&video_str, ";")) || !*p)
2685                 goto mach64_invalid;
2686         vmembase = simple_strtoul(p, NULL, 0);
2687         if (!(p = strsep(&video_str, ";")) || !*p)
2688                 goto mach64_invalid;
2689         size = simple_strtoul(p, NULL, 0);
2690         if (!(p = strsep(&video_str, ";")) || !*p)
2691                 goto mach64_invalid;
2692         guiregbase = simple_strtoul(p, NULL, 0);
2693
2694         phys_vmembase[m64_num] = vmembase;
2695         phys_size[m64_num] = size;
2696         phys_guiregbase[m64_num] = guiregbase;
2697         PRINTKI("stored them all: $%08lX $%08lX $%08lX \n", vmembase, size,
2698                guiregbase);
2699         return 0;
2700
2701       mach64_invalid:
2702         phys_vmembase[m64_num] = 0;
2703         return -1;
2704 }
2705 #endif /* CONFIG_ATARI */
2706
2707     /*
2708      *  Blank the display.
2709      */
2710
2711 static int atyfb_blank(int blank, struct fb_info *info)
2712 {
2713         struct atyfb_par *par = (struct atyfb_par *) info->par;
2714         u32 gen_cntl;
2715
2716         if (par->lock_blank || par->asleep)
2717                 return 0;
2718
2719 #ifdef CONFIG_FB_ATY_GENERIC_LCD
2720         if (par->lcd_table && blank > FB_BLANK_NORMAL &&
2721             (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
2722                 u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2723                 pm &= ~PWR_BLON;
2724                 aty_st_lcd(POWER_MANAGEMENT, pm, par);
2725         }
2726 #endif
2727
2728         gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par);
2729         gen_cntl &= ~0x400004c;
2730         switch (blank) {
2731                 case FB_BLANK_UNBLANK:
2732                         break;
2733                 case FB_BLANK_NORMAL:
2734                         gen_cntl |= 0x4000040;
2735                         break;
2736                 case FB_BLANK_VSYNC_SUSPEND:
2737                         gen_cntl |= 0x4000048;
2738                         break;
2739                 case FB_BLANK_HSYNC_SUSPEND:
2740                         gen_cntl |= 0x4000044;
2741                         break;
2742                 case FB_BLANK_POWERDOWN:
2743                         gen_cntl |= 0x400004c;
2744                         break;
2745         }
2746         aty_st_le32(CRTC_GEN_CNTL, gen_cntl, par);
2747
2748 #ifdef CONFIG_FB_ATY_GENERIC_LCD
2749         if (par->lcd_table && blank <= FB_BLANK_NORMAL &&
2750             (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
2751                 u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
2752                 pm |= PWR_BLON;
2753                 aty_st_lcd(POWER_MANAGEMENT, pm, par);
2754         }
2755 #endif
2756
2757         return 0;
2758 }
2759
2760 static void aty_st_pal(u_int regno, u_int red, u_int green, u_int blue,
2761                        const struct atyfb_par *par)
2762 {
2763         aty_st_8(DAC_W_INDEX, regno, par);
2764         aty_st_8(DAC_DATA, red, par);
2765         aty_st_8(DAC_DATA, green, par);
2766         aty_st_8(DAC_DATA, blue, par);
2767 }
2768
2769     /*
2770      *  Set a single color register. The values supplied are already
2771      *  rounded down to the hardware's capabilities (according to the
2772      *  entries in the var structure). Return != 0 for invalid regno.
2773      *  !! 4 & 8 =  PSEUDO, > 8 = DIRECTCOLOR
2774      */
2775
2776 static int atyfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
2777         u_int transp, struct fb_info *info)
2778 {
2779         struct atyfb_par *par = (struct atyfb_par *) info->par;
2780         int i, depth;
2781         u32 *pal = info->pseudo_palette;
2782
2783         depth = info->var.bits_per_pixel;
2784         if (depth == 16)
2785                 depth = (info->var.green.length == 5) ? 15 : 16;
2786
2787         if (par->asleep)
2788                 return 0;
2789
2790         if (regno > 255 ||
2791             (depth == 16 && regno > 63) ||
2792             (depth == 15 && regno > 31))
2793                 return 1;
2794
2795         red >>= 8;
2796         green >>= 8;
2797         blue >>= 8;
2798
2799         par->palette[regno].red = red;
2800         par->palette[regno].green = green;
2801         par->palette[regno].blue = blue;
2802
2803         if (regno < 16) {
2804                 switch (depth) {
2805                 case 15:
2806                         pal[regno] = (regno << 10) | (regno << 5) | regno;
2807                         break;
2808                 case 16:
2809                         pal[regno] = (regno << 11) | (regno << 5) | regno;
2810                         break;
2811                 case 24:
2812                         pal[regno] = (regno << 16) | (regno << 8) | regno;
2813                         break;
2814                 case 32:
2815                         i = (regno << 8) | regno;
2816                         pal[regno] = (i << 16) | i;
2817                         break;
2818                 }
2819         }
2820
2821         i = aty_ld_8(DAC_CNTL, par) & 0xfc;
2822         if (M64_HAS(EXTRA_BRIGHT))
2823                 i |= 0x2; /* DAC_CNTL | 0x2 turns off the extra brightness for gt */
2824         aty_st_8(DAC_CNTL, i, par);
2825         aty_st_8(DAC_MASK, 0xff, par);
2826
2827         if (M64_HAS(INTEGRATED)) {
2828                 if (depth == 16) {
2829                         if (regno < 32)
2830                                 aty_st_pal(regno << 3, red,
2831                                            par->palette[regno<<1].green,
2832                                            blue, par);
2833                         red = par->palette[regno>>1].red;
2834                         blue = par->palette[regno>>1].blue;
2835                         regno <<= 2;
2836                 } else if (depth == 15) {
2837                         regno <<= 3;
2838                         for(i = 0; i < 8; i++) {
2839                             aty_st_pal(regno + i, red, green, blue, par);
2840                         }
2841                 }
2842         }
2843         aty_st_pal(regno, red, green, blue, par);
2844
2845         return 0;
2846 }
2847
2848 #ifdef CONFIG_PCI
2849
2850 #ifdef __sparc__
2851
2852 static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
2853                         struct fb_info *info, unsigned long addr)
2854 {
2855         struct atyfb_par *par = info->par;
2856         struct device_node *dp;
2857         char prop[128];
2858         int node, len, i, j, ret;
2859         u32 mem, chip_id;
2860
2861         /*
2862          * Map memory-mapped registers.
2863          */
2864         par->ati_regbase = (void *)addr + 0x7ffc00UL;
2865         info->fix.mmio_start = addr + 0x7ffc00UL;
2866
2867         /*
2868          * Map in big-endian aperture.
2869          */
2870         info->screen_base = (char *) (addr + 0x800000UL);
2871         info->fix.smem_start = addr + 0x800000UL;
2872
2873         /*
2874          * Figure mmap addresses from PCI config space.
2875          * Split Framebuffer in big- and little-endian halfs.
2876          */
2877         for (i = 0; i < 6 && pdev->resource[i].start; i++)
2878                 /* nothing */ ;
2879         j = i + 4;
2880
2881         par->mmap_map = kcalloc(j, sizeof(*par->mmap_map), GFP_ATOMIC);
2882         if (!par->mmap_map) {
2883                 PRINTKE("atyfb_setup_sparc() can't alloc mmap_map\n");
2884                 return -ENOMEM;
2885         }
2886
2887         for (i = 0, j = 2; i < 6 && pdev->resource[i].start; i++) {
2888                 struct resource *rp = &pdev->resource[i];
2889                 int io, breg = PCI_BASE_ADDRESS_0 + (i << 2);
2890                 unsigned long base;
2891                 u32 size, pbase;
2892
2893                 base = rp->start;
2894
2895                 io = (rp->flags & IORESOURCE_IO);
2896
2897                 size = rp->end - base + 1;
2898
2899                 pci_read_config_dword(pdev, breg, &pbase);
2900
2901                 if (io)
2902                         size &= ~1;
2903
2904                 /*
2905                  * Map the framebuffer a second time, this time without
2906                  * the braindead _PAGE_IE setting. This is used by the
2907                  * fixed Xserver, but we need to maintain the old mapping
2908                  * to stay compatible with older ones...
2909                  */
2910                 if (base == addr) {
2911                         par->mmap_map[j].voff = (pbase + 0x10000000) & PAGE_MASK;
2912                         par->mmap_map[j].poff = base & PAGE_MASK;
2913                         par->mmap_map[j].size = (size + ~PAGE_MASK) & PAGE_MASK;
2914                         par->mmap_map[j].prot_mask = _PAGE_CACHE;
2915                         par->mmap_map[j].prot_flag = _PAGE_E;
2916                         j++;
2917                 }
2918
2919                 /*
2920                  * Here comes the old framebuffer mapping with _PAGE_IE
2921                  * set for the big endian half of the framebuffer...
2922                  */
2923                 if (base == addr) {
2924                         par->mmap_map[j].voff = (pbase + 0x800000) & PAGE_MASK;
2925                         par->mmap_map[j].poff = (base + 0x800000) & PAGE_MASK;
2926                         par->mmap_map[j].size = 0x800000;
2927                         par->mmap_map[j].prot_mask = _PAGE_CACHE;
2928                         par->mmap_map[j].prot_flag = _PAGE_E | _PAGE_IE;
2929                         size -= 0x800000;
2930                         j++;
2931                 }
2932
2933                 par->mmap_map[j].voff = pbase & PAGE_MASK;
2934                 par->mmap_map[j].poff = base & PAGE_MASK;
2935                 par->mmap_map[j].size = (size + ~PAGE_MASK) & PAGE_MASK;
2936                 par->mmap_map[j].prot_mask = _PAGE_CACHE;
2937                 par->mmap_map[j].prot_flag = _PAGE_E;
2938                 j++;
2939         }
2940
2941         if((ret = correct_chipset(par)))
2942                 return ret;
2943
2944         if (IS_XL(pdev->device)) {
2945                 /*
2946                  * Fix PROMs idea of MEM_CNTL settings...
2947                  */
2948                 mem = aty_ld_le32(MEM_CNTL, par);
2949                 chip_id = aty_ld_le32(CONFIG_CHIP_ID, par);
2950                 if (((chip_id & CFG_CHIP_TYPE) == VT_CHIP_ID) && !((chip_id >> 24) & 1)) {
2951                         switch (mem & 0x0f) {
2952                         case 3:
2953                                 mem = (mem & ~(0x0f)) | 2;
2954                                 break;
2955                         case 7:
2956                                 mem = (mem & ~(0x0f)) | 3;
2957                                 break;
2958                         case 9:
2959                                 mem = (mem & ~(0x0f)) | 4;
2960                                 break;
2961                         case 11:
2962                                 mem = (mem & ~(0x0f)) | 5;
2963                                 break;
2964                         default:
2965                                 break;
2966                         }
2967                         if ((aty_ld_le32(CONFIG_STAT0, par) & 7) >= SDRAM)
2968                                 mem &= ~(0x00700000);
2969                 }
2970                 mem &= ~(0xcf80e000);   /* Turn off all undocumented bits. */
2971                 aty_st_le32(MEM_CNTL, mem, par);
2972         }
2973
2974         /*
2975          * If this is the console device, we will set default video
2976          * settings to what the PROM left us with.
2977          */
2978         node = prom_getchild(prom_root_node);
2979         node = prom_searchsiblings(node, "aliases");
2980         if (node) {
2981                 len = prom_getproperty(node, "screen", prop, sizeof(prop));
2982                 if (len > 0) {
2983                         prop[len] = '\0';
2984                         node = prom_finddevice(prop);
2985                 } else
2986                         node = 0;
2987         }
2988
2989         dp = pci_device_to_OF_node(pdev);
2990         if (node == dp->node) {
2991                 struct fb_var_screeninfo *var = &default_var;
2992                 unsigned int N, P, Q, M, T, R;
2993                 u32 v_total, h_total;
2994                 struct crtc crtc;
2995                 u8 pll_regs[16];
2996                 u8 clock_cntl;
2997
2998                 crtc.vxres = prom_getintdefault(node, "width", 1024);
2999                 crtc.vyres = prom_getintdefault(node, "height", 768);
3000                 var->bits_per_pixel = prom_getintdefault(node, "depth", 8);
3001                 var->xoffset = var->yoffset = 0;
3002                 crtc.h_tot_disp = aty_ld_le32(CRTC_H_TOTAL_DISP, par);
3003                 crtc.h_sync_strt_wid = aty_ld_le32(CRTC_H_SYNC_STRT_WID, par);
3004                 crtc.v_tot_disp = aty_ld_le32(CRTC_V_TOTAL_DISP, par);
3005                 crtc.v_sync_strt_wid = aty_ld_le32(CRTC_V_SYNC_STRT_WID, par);
3006                 crtc.gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par);
3007                 aty_crtc_to_var(&crtc, var);
3008
3009                 h_total = var->xres + var->right_margin + var->hsync_len + var->left_margin;
3010                 v_total = var->yres + var->lower_margin + var->vsync_len + var->upper_margin;
3011
3012                 /*
3013                  * Read the PLL to figure actual Refresh Rate.
3014                  */
3015                 clock_cntl = aty_ld_8(CLOCK_CNTL, par);
3016                 /* DPRINTK("CLOCK_CNTL %02x\n", clock_cntl); */
3017                 for (i = 0; i < 16; i++)
3018                         pll_regs[i] = aty_ld_pll_ct(i, par);
3019
3020                 /*
3021                  * PLL Reference Divider M:
3022                  */
3023                 M = pll_regs[2];
3024
3025                 /*
3026                  * PLL Feedback Divider N (Dependant on CLOCK_CNTL):
3027                  */
3028                 N = pll_regs[7 + (clock_cntl & 3)];
3029
3030                 /*
3031                  * PLL Post Divider P (Dependant on CLOCK_CNTL):
3032                  */
3033                 P = 1 << (pll_regs[6] >> ((clock_cntl & 3) << 1));
3034
3035                 /*
3036                  * PLL Divider Q:
3037                  */
3038                 Q = N / P;
3039
3040                 /*
3041                  * Target Frequency:
3042                  *
3043                  *      T * M
3044                  * Q = -------
3045                  *      2 * R
3046                  *
3047                  * where R is XTALIN (= 14318 or 29498 kHz).
3048                  */
3049                 if (IS_XL(pdev->device))
3050                         R = 29498;
3051                 else
3052                         R = 14318;
3053
3054                 T = 2 * Q * R / M;
3055
3056                 default_var.pixclock = 1000000000 / T;
3057         }
3058
3059         return 0;
3060 }
3061
3062 #else /* __sparc__ */
3063
3064 #ifdef __i386__
3065 #ifdef CONFIG_FB_ATY_GENERIC_LCD
3066 static void __devinit aty_init_lcd(struct atyfb_par *par, u32 bios_base)
3067 {
3068         u32 driv_inf_tab, sig;
3069         u16 lcd_ofs;
3070
3071         /* To support an LCD panel, we should know it's dimensions and
3072          *  it's desired pixel clock.
3073          * There are two ways to do it:
3074          *  - Check the startup video mode and calculate the panel
3075          *    size from it. This is unreliable.
3076          *  - Read it from the driver information table in the video BIOS.
3077         */
3078         /* Address of driver information table is at offset 0x78. */
3079         driv_inf_tab = bios_base + *((u16 *)(bios_base+0x78));
3080
3081         /* Check for the driver information table signature. */
3082         sig = (*(u32 *)driv_inf_tab);
3083         if ((sig == 0x54504c24) || /* Rage LT pro */
3084                 (sig == 0x544d5224) || /* Rage mobility */
3085                 (sig == 0x54435824) || /* Rage XC */
3086                 (sig == 0x544c5824)) { /* Rage XL */
3087                 PRINTKI("BIOS contains driver information table.\n");
3088                 lcd_ofs = (*(u16 *)(driv_inf_tab + 10));
3089                 par->lcd_table = 0;
3090                 if (lcd_ofs != 0) {
3091                         par->lcd_table = bios_base + lcd_ofs;
3092                 }
3093         }
3094
3095         if (par->lcd_table != 0) {
3096                 char model[24];
3097                 char strbuf[16];
3098                 char refresh_rates_buf[100];
3099                 int id, tech, f, i, m, default_refresh_rate;
3100                 char *txtcolour;
3101                 char *txtmonitor;
3102                 char *txtdual;
3103                 char *txtformat;
3104                 u16 width, height, panel_type, refresh_rates;
3105                 u16 *lcdmodeptr;
3106                 u32 format;
3107                 u8 lcd_refresh_rates[16] = {50,56,60,67,70,72,75,76,85,90,100,120,140,150,160,200};
3108                 /* The most important information is the panel size at
3109                  * offset 25 and 27, but there's some other nice information
3110                  * which we print to the screen.
3111                  */
3112                 id = *(u8 *)par->lcd_table;
3113                 strncpy(model,(char *)par->lcd_table+1,24);
3114                 model[23]=0;
3115
3116                 width = par->lcd_width = *(u16 *)(par->lcd_table+25);
3117                 height = par->lcd_height = *(u16 *)(par->lcd_table+27);
3118                 panel_type = *(u16 *)(par->lcd_table+29);
3119                 if (panel_type & 1)
3120                         txtcolour = "colour";
3121                 else
3122                         txtcolour = "monochrome";
3123                 if (panel_type & 2)
3124                         txtdual = "dual (split) ";
3125                 else
3126                         txtdual = "";
3127                 tech = (panel_type>>2) & 63;
3128                 switch (tech) {
3129                 case 0:
3130                         txtmonitor = "passive matrix";
3131                         break;
3132                 case 1:
3133                         txtmonitor = "active matrix";
3134                         break;
3135                 case 2:
3136                         txtmonitor = "active addressed STN";
3137                         break;
3138                 case 3:
3139                         txtmonitor = "EL";
3140                         break;
3141                 case 4:
3142                         txtmonitor = "plasma";
3143                         break;
3144                 default:
3145                         txtmonitor = "unknown";
3146                 }
3147                 format = *(u32 *)(par->lcd_table+57);
3148                 if (tech == 0 || tech == 2) {
3149                         switch (format & 7) {
3150                         case 0:
3151                                 txtformat = "12 bit interface";
3152                                 break;
3153                         case 1:
3154                                 txtformat = "16 bit interface";
3155                                 break;
3156                         case 2:
3157                                 txtformat = "24 bit interface";
3158                                 break;
3159                         default:
3160                                 txtformat = "unkown format";
3161                         }
3162                 } else {
3163                         switch (format & 7) {
3164                         case 0:
3165                                 txtformat = "8 colours";
3166                                 break;
3167                         case 1:
3168                                 txtformat = "512 colours";
3169                                 break;
3170                         case 2:
3171                                 txtformat = "4096 colours";
3172                                 break;
3173                         case 4:
3174                                 txtformat = "262144 colours (LT mode)";
3175                                 break;
3176                         case 5:
3177                                 txtformat = "16777216 colours";
3178                                 break;
3179                         case 6:
3180                                 txtformat = "262144 colours (FDPI-2 mode)";
3181                                 break;
3182                         default:
3183                                 txtformat = "unkown format";
3184                         }
3185                 }
3186                 PRINTKI("%s%s %s monitor detected: %s\n",
3187                         txtdual ,txtcolour, txtmonitor, model);
3188                 PRINTKI("       id=%d, %dx%d pixels, %s\n",
3189                         id, width, height, txtformat);
3190                 refresh_rates_buf[0] = 0;
3191                 refresh_rates = *(u16 *)(par->lcd_table+62);
3192                 m = 1;
3193                 f = 0;
3194                 for (i=0;i<16;i++) {
3195                         if (refresh_rates & m) {
3196                                 if (f == 0) {
3197                                         sprintf(strbuf, "%d", lcd_refresh_rates[i]);
3198                                         f++;
3199                                 } else {
3200                                         sprintf(strbuf, ",%d", lcd_refresh_rates[i]);
3201                                 }
3202                                 strcat(refresh_rates_buf,strbuf);
3203                         }
3204                         m = m << 1;
3205                 }
3206                 default_refresh_rate = (*(u8 *)(par->lcd_table+61) & 0xf0) >> 4;
3207                 PRINTKI("       supports refresh rates [%s], default %d Hz\n",
3208                         refresh_rates_buf, lcd_refresh_rates[default_refresh_rate]);
3209                 par->lcd_refreshrate = lcd_refresh_rates[default_refresh_rate];
3210                 /* We now need to determine the crtc parameters for the
3211                  * LCD monitor. This is tricky, because they are not stored
3212                  * individually in the BIOS. Instead, the BIOS contains a
3213                  * table of display modes that work for this monitor.
3214                  *
3215                  * The idea is that we search for a mode of the same dimensions
3216                  * as the dimensions of the LCD monitor. Say our LCD monitor
3217                  * is 800x600 pixels, we search for a 800x600 monitor.
3218                  * The CRTC parameters we find here are the ones that we need
3219                  * to use to simulate other resolutions on the LCD screen.
3220                  */
3221                 lcdmodeptr = (u16 *)(par->lcd_table + 64);
3222                 while (*lcdmodeptr != 0) {
3223                         u32 modeptr;
3224                         u16 mwidth, mheight, lcd_hsync_start, lcd_vsync_start;
3225                         modeptr = bios_base + *lcdmodeptr;
3226
3227                         mwidth = *((u16 *)(modeptr+0));
3228                         mheight = *((u16 *)(modeptr+2));
3229
3230                         if (mwidth == width && mheight == height) {
3231                                 par->lcd_pixclock = 100000000 / *((u16 *)(modeptr+9));
3232                                 par->lcd_htotal = *((u16 *)(modeptr+17)) & 511;
3233                                 par->lcd_hdisp = *((u16 *)(modeptr+19)) & 511;
3234                                 lcd_hsync_start = *((u16 *)(modeptr+21)) & 511;
3235                                 par->lcd_hsync_dly = (*((u16 *)(modeptr+21)) >> 9) & 7;
3236                                 par->lcd_hsync_len = *((u8 *)(modeptr+23)) & 63;
3237
3238                                 par->lcd_vtotal = *((u16 *)(modeptr+24)) & 2047;
3239                                 par->lcd_vdisp = *((u16 *)(modeptr+26)) & 2047;
3240                                 lcd_vsync_start = *((u16 *)(modeptr+28)) & 2047;
3241                                 par->lcd_vsync_len = (*((u16 *)(modeptr+28)) >> 11) & 31;
3242
3243                                 par->lcd_htotal = (par->lcd_htotal + 1) * 8;
3244                                 par->lcd_hdisp = (par->lcd_hdisp + 1) * 8;
3245                                 lcd_hsync_start = (lcd_hsync_start + 1) * 8;
3246                                 par->lcd_hsync_len = par->lcd_hsync_len * 8;
3247
3248                                 par->lcd_vtotal++;
3249                                 par->lcd_vdisp++;
3250                                 lcd_vsync_start++;
3251
3252                                 par->lcd_right_margin = lcd_hsync_start - par->lcd_hdisp;
3253                                 par->lcd_lower_margin = lcd_vsync_start - par->lcd_vdisp;
3254                                 par->lcd_hblank_len = par->lcd_htotal - par->lcd_hdisp;
3255                                 par->lcd_vblank_len = par->lcd_vtotal - par->lcd_vdisp;
3256                                 break;
3257                         }
3258
3259                         lcdmodeptr++;
3260                 }
3261                 if (*lcdmodeptr == 0) {
3262                         PRINTKE("LCD monitor CRTC parameters not found!!!\n");
3263                         /* To do: Switch to CRT if possible. */
3264                 } else {
3265                         PRINTKI("       LCD CRTC parameters: %d.%d  %d %d %d %d  %d %d %d %d\n",
3266                                 1000000 / par->lcd_pixclock, 1000000 % par->lcd_pixclock,
3267                                 par->lcd_hdisp,
3268                                 par->lcd_hdisp + par->lcd_right_margin,
3269                                 par->lcd_hdisp + par->lcd_right_margin
3270                                         + par->lcd_hsync_dly + par->lcd_hsync_len,
3271                                 par->lcd_htotal,
3272                                 par->lcd_vdisp,
3273                                 par->lcd_vdisp + par->lcd_lower_margin,
3274                                 par->lcd_vdisp + par->lcd_lower_margin + par->lcd_vsync_len,
3275                                 par->lcd_vtotal);
3276                         PRINTKI("                          : %d %d %d %d %d %d %d %d %d\n",
3277                                 par->lcd_pixclock,
3278                                 par->lcd_hblank_len - (par->lcd_right_margin +
3279                                         par->lcd_hsync_dly + par->lcd_hsync_len),
3280                                 par->lcd_hdisp,
3281                                 par->lcd_right_margin,
3282                                 par->lcd_hsync_len,
3283                                 par->lcd_vblank_len - (par->lcd_lower_margin + par->lcd_vsync_len),
3284                                 par->lcd_vdisp,
3285                                 par->lcd_lower_margin,
3286                                 par->lcd_vsync_len);
3287                 }
3288         }
3289 }
3290 #endif /* CONFIG_FB_ATY_GENERIC_LCD */
3291
3292 static int __devinit init_from_bios(struct atyfb_par *par)
3293 {
3294         u32 bios_base, rom_addr;
3295         int ret;
3296
3297         rom_addr = 0xc0000 + ((aty_ld_le32(SCRATCH_REG1, par) & 0x7f) << 11);
3298         bios_base = (unsigned long)ioremap(rom_addr, 0x10000);
3299
3300         /* The BIOS starts with 0xaa55. */
3301         if (*((u16 *)bios_base) == 0xaa55) {
3302
3303                 u8 *bios_ptr;
3304                 u16 rom_table_offset, freq_table_offset;
3305                 PLL_BLOCK_MACH64 pll_block;
3306
3307                 PRINTKI("Mach64 BIOS is located at %x, mapped at %x.\n", rom_addr, bios_base);
3308
3309                 /* check for frequncy table */
3310                 bios_ptr = (u8*)bios_base;
3311                 rom_table_offset = (u16)(bios_ptr[0x48] | (bios_ptr[0x49] << 8));
3312                 freq_table_offset = bios_ptr[rom_table_offset + 16] | (bios_ptr[rom_table_offset + 17] << 8);
3313                 memcpy(&pll_block, bios_ptr + freq_table_offset, sizeof(PLL_BLOCK_MACH64));
3314
3315                 PRINTKI("BIOS frequency table:\n");
3316                 PRINTKI("PCLK_min_freq %d, PCLK_max_freq %d, ref_freq %d, ref_divider %d\n",
3317                         pll_block.PCLK_min_freq, pll_block.PCLK_max_freq,
3318                         pll_block.ref_freq, pll_block.ref_divider);
3319                 PRINTKI("MCLK_pwd %d, MCLK_max_freq %d, XCLK_max_freq %d, SCLK_freq %d\n",
3320                         pll_block.MCLK_pwd, pll_block.MCLK_max_freq,
3321                         pll_block.XCLK_max_freq, pll_block.SCLK_freq);
3322
3323                 par->pll_limits.pll_min = pll_block.PCLK_min_freq/100;
3324                 par->pll_limits.pll_max = pll_block.PCLK_max_freq/100;
3325                 par->pll_limits.ref_clk = pll_block.ref_freq/100;
3326                 par->pll_limits.ref_div = pll_block.ref_divider;
3327                 par->pll_limits.sclk = pll_block.SCLK_freq/100;
3328                 par->pll_limits.mclk = pll_block.MCLK_max_freq/100;
3329                 par->pll_limits.mclk_pm = pll_block.MCLK_pwd/100;
3330                 par->pll_limits.xclk = pll_block.XCLK_max_freq/100;
3331 #ifdef CONFIG_FB_ATY_GENERIC_LCD
3332                 aty_init_lcd(par, bios_base);
3333 #endif
3334                 ret = 0;
3335         } else {
3336                 PRINTKE("no BIOS frequency table found, use parameters\n");
3337                 ret = -ENXIO;
3338         }
3339         iounmap((void __iomem *)bios_base);
3340
3341         return ret;
3342 }
3343 #endif /* __i386__ */
3344
3345 static int __devinit atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *info, unsigned long addr)
3346 {
3347         struct atyfb_par *par = info->par;
3348         u16 tmp;
3349         unsigned long raddr;
3350         struct resource *rrp;
3351         int ret = 0;
3352
3353         raddr = addr + 0x7ff000UL;
3354         rrp = &pdev->resource[2];
3355         if ((rrp->flags & IORESOURCE_MEM) && request_mem_region(rrp->start, rrp->end - rrp->start + 1, "atyfb")) {
3356                 par->aux_start = rrp->start;
3357                 par->aux_size = rrp->end - rrp->start + 1;
3358                 raddr = rrp->start;
3359                 PRINTKI("using auxiliary register aperture\n");
3360         }
3361
3362         info->fix.mmio_start = raddr;
3363         par->ati_regbase = ioremap(info->fix.mmio_start, 0x1000);
3364         if (par->ati_regbase == NULL)
3365                 return -ENOMEM;
3366
3367         info->fix.mmio_start += par->aux_start ? 0x400 : 0xc00;
3368         par->ati_regbase += par->aux_start ? 0x400 : 0xc00;
3369
3370         /*
3371          * Enable memory-space accesses using config-space
3372          * command register.
3373          */
3374         pci_read_config_word(pdev, PCI_COMMAND, &tmp);
3375         if (!(tmp & PCI_COMMAND_MEMORY)) {
3376                 tmp |= PCI_COMMAND_MEMORY;
3377                 pci_write_config_word(pdev, PCI_COMMAND, tmp);
3378         }
3379 #ifdef __BIG_ENDIAN
3380         /* Use the big-endian aperture */
3381         addr += 0x800000;
3382 #endif
3383
3384         /* Map in frame buffer */
3385         info->fix.smem_start = addr;
3386         info->screen_base = ioremap(addr, 0x800000);
3387         if (info->screen_base == NULL) {
3388                 ret = -ENOMEM;
3389                 goto atyfb_setup_generic_fail;
3390         }
3391
3392         if((ret = correct_chipset(par)))
3393                 goto atyfb_setup_generic_fail;
3394 #ifdef __i386__
3395         if((ret = init_from_bios(par)))
3396                 goto atyfb_setup_generic_fail;
3397 #endif
3398         if (!(aty_ld_le32(CRTC_GEN_CNTL, par) & CRTC_EXT_DISP_EN))
3399                 par->clk_wr_offset = (inb(R_GENMO) & 0x0CU) >> 2;
3400         else
3401                 par->clk_wr_offset = aty_ld_8(CLOCK_CNTL, par) & 0x03U;
3402
3403         /* according to ATI, we should use clock 3 for acelerated mode */
3404         par->clk_wr_offset = 3;
3405
3406         return 0;
3407
3408 atyfb_setup_generic_fail:
3409         iounmap(par->ati_regbase);
3410         par->ati_regbase = NULL;
3411         if (info->screen_base) {
3412                 iounmap(info->screen_base);
3413                 info->screen_base = NULL;
3414         }
3415         return ret;
3416 }
3417
3418 #endif /* !__sparc__ */
3419
3420 static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
3421 {
3422         unsigned long addr, res_start, res_size;
3423         struct fb_info *info;
3424         struct resource *rp;
3425         struct atyfb_par *par;
3426         int rc = -ENOMEM;
3427
3428         /* Enable device in PCI config */
3429         if (pci_enable_device(pdev)) {
3430                 PRINTKE("Cannot enable PCI device\n");
3431                 return -ENXIO;
3432         }
3433
3434         /* Find which resource to use */
3435         rp = &pdev->resource[0];
3436         if (rp->flags & IORESOURCE_IO)
3437                 rp = &pdev->resource[1];
3438         addr = rp->start;
3439         if (!addr)
3440                 return -ENXIO;
3441
3442         /* Reserve space */
3443         res_start = rp->start;
3444         res_size = rp->end - rp->start + 1;
3445         if (!request_mem_region (res_start, res_size, "atyfb"))
3446                 return -EBUSY;
3447
3448         /* Allocate framebuffer */
3449         info = framebuffer_alloc(sizeof(struct atyfb_par), &pdev->dev);
3450         if (!info) {
3451                 PRINTKE("atyfb_pci_probe() can't alloc fb_info\n");
3452                 return -ENOMEM;
3453         }
3454         par = info->par;
3455         info->fix = atyfb_fix;
3456         info->device = &pdev->dev;
3457         par->pci_id = pdev->device;
3458         par->res_start = res_start;
3459         par->res_size = res_size;
3460         par->irq = pdev->irq;
3461         par->pdev = pdev;
3462
3463         /* Setup "info" structure */
3464 #ifdef __sparc__
3465         rc = atyfb_setup_sparc(pdev, info, addr);
3466 #else
3467         rc = atyfb_setup_generic(pdev, info, addr);
3468 #endif
3469         if (rc)
3470                 goto err_release_mem;
3471
3472         pci_set_drvdata(pdev, info);
3473
3474         /* Init chip & register framebuffer */
3475         rc = aty_init(info);
3476         if (rc)
3477                 goto err_release_io;
3478
3479 #ifdef __sparc__
3480         /*
3481          * Add /dev/fb mmap values.
3482          */
3483         par->mmap_map[0].voff = 0x8000000000000000UL;
3484         par->mmap_map[0].poff = (unsigned long) info->screen_base & PAGE_MASK;
3485         par->mmap_map[0].size = info->fix.smem_len;
3486         par->mmap_map[0].prot_mask = _PAGE_CACHE;
3487         par->mmap_map[0].prot_flag = _PAGE_E;
3488         par->mmap_map[1].voff = par->mmap_map[0].voff + info->fix.smem_len;
3489         par->mmap_map[1].poff = (long)par->ati_regbase & PAGE_MASK;
3490         par->mmap_map[1].size = PAGE_SIZE;
3491         par->mmap_map[1].prot_mask = _PAGE_CACHE;
3492         par->mmap_map[1].prot_flag = _PAGE_E;
3493 #endif /* __sparc__ */
3494
3495         return 0;
3496
3497 err_release_io:
3498 #ifdef __sparc__
3499         kfree(par->mmap_map);
3500 #else
3501         if (par->ati_regbase)
3502                 iounmap(par->ati_regbase);
3503         if (info->screen_base)
3504                 iounmap(info->screen_base);
3505 #endif
3506 err_release_mem:
3507         if (par->aux_start)
3508                 release_mem_region(par->aux_start, par->aux_size);
3509
3510         release_mem_region(par->res_start, par->res_size);
3511         framebuffer_release(info);
3512
3513         return rc;
3514 }
3515
3516 #endif /* CONFIG_PCI */
3517
3518 #ifdef CONFIG_ATARI
3519
3520 static int __init atyfb_atari_probe(void)
3521 {
3522         struct atyfb_par *par;
3523         struct fb_info *info;
3524         int m64_num;
3525         u32 clock_r;
3526         int num_found = 0;
3527
3528         for (m64_num = 0; m64_num < mach64_count; m64_num++) {
3529                 if (!phys_vmembase[m64_num] || !phys_size[m64_num] ||
3530                     !phys_guiregbase[m64_num]) {
3531                     PRINTKI("phys_*[%d] parameters not set => returning early. \n", m64_num);
3532                         continue;
3533                 }
3534
3535                 info = framebuffer_alloc(sizeof(struct atyfb_par), NULL);
3536                 if (!info) {
3537                         PRINTKE("atyfb_atari_probe() can't alloc fb_info\n");
3538                         return -ENOMEM;
3539                 }
3540                 par = info->par;
3541
3542                 info->fix = atyfb_fix;
3543
3544                 par->irq = (unsigned int) -1; /* something invalid */
3545
3546                 /*
3547                  *  Map the video memory (physical address given) to somewhere in the
3548                  *  kernel address space.
3549                  */
3550                 info->screen_base = ioremap(phys_vmembase[m64_num], phys_size[m64_num]);
3551                 info->fix.smem_start = (unsigned long)info->screen_base; /* Fake! */
3552                 par->ati_regbase = ioremap(phys_guiregbase[m64_num], 0x10000) +
3553                                                 0xFC00ul;
3554                 info->fix.mmio_start = (unsigned long)par->ati_regbase; /* Fake! */
3555
3556                 aty_st_le32(CLOCK_CNTL, 0x12345678, par);
3557                 clock_r = aty_ld_le32(CLOCK_CNTL, par);
3558
3559                 switch (clock_r & 0x003F) {
3560                 case 0x12:
3561                         par->clk_wr_offset = 3; /*  */
3562                         break;
3563                 case 0x34:
3564                         par->clk_wr_offset = 2; /* Medusa ST-IO ISA Adapter etc. */
3565                         break;
3566                 case 0x16:
3567                         par->clk_wr_offset = 1; /*  */
3568                         break;
3569                 case 0x38:
3570                         par->clk_wr_offset = 0; /* Panther 1 ISA Adapter (Gerald) */
3571                         break;
3572                 }
3573
3574                 /* Fake pci_id for correct_chipset() */
3575                 switch (aty_ld_le32(CONFIG_CHIP_ID, par) & CFG_CHIP_TYPE) {
3576                 case 0x00d7:
3577                         par->pci_id = PCI_CHIP_MACH64GX;
3578                         break;
3579                 case 0x0057:
3580                         par->pci_id = PCI_CHIP_MACH64CX;
3581                         break;
3582                 default:
3583                         break;
3584                 }
3585
3586                 if (correct_chipset(par) || aty_init(info)) {
3587                         iounmap(info->screen_base);
3588                         iounmap(par->ati_regbase);
3589                         framebuffer_release(info);
3590                 } else {
3591                         num_found++;
3592                 }
3593         }
3594
3595         return num_found ? 0 : -ENXIO;
3596 }
3597
3598 #endif /* CONFIG_ATARI */
3599
3600 #ifdef CONFIG_PCI
3601
3602 static void __devexit atyfb_remove(struct fb_info *info)
3603 {
3604         struct atyfb_par *par = (struct atyfb_par *) info->par;
3605
3606         /* restore video mode */
3607         aty_set_crtc(par, &saved_crtc);
3608         par->pll_ops->set_pll(info, &saved_pll);
3609
3610         unregister_framebuffer(info);
3611
3612 #ifdef CONFIG_FB_ATY_BACKLIGHT
3613         if (M64_HAS(MOBIL_BUS))
3614                 aty_bl_exit(info->bl_dev);
3615 #endif
3616
3617 #ifdef CONFIG_MTRR
3618         if (par->mtrr_reg >= 0) {
3619             mtrr_del(par->mtrr_reg, 0, 0);
3620             par->mtrr_reg = -1;
3621         }
3622         if (par->mtrr_aper >= 0) {
3623             mtrr_del(par->mtrr_aper, 0, 0);
3624             par->mtrr_aper = -1;
3625         }
3626 #endif
3627 #ifndef __sparc__
3628         if (par->ati_regbase)
3629                 iounmap(par->ati_regbase);
3630         if (info->screen_base)
3631                 iounmap(info->screen_base);
3632 #ifdef __BIG_ENDIAN
3633         if (info->sprite.addr)
3634                 iounmap(info->sprite.addr);
3635 #endif
3636 #endif
3637 #ifdef __sparc__
3638         kfree(par->mmap_map);
3639 #endif
3640         if (par->aux_start)
3641                 release_mem_region(par->aux_start, par->aux_size);
3642
3643         if (par->res_start)
3644                 release_mem_region(par->res_start, par->res_size);
3645
3646         framebuffer_release(info);
3647 }
3648
3649
3650 static void __devexit atyfb_pci_remove(struct pci_dev *pdev)
3651 {
3652         struct fb_info *info = pci_get_drvdata(pdev);
3653
3654         atyfb_remove(info);
3655 }
3656
3657 static struct pci_device_id atyfb_pci_tbl[] = {
3658 #ifdef CONFIG_FB_ATY_GX
3659         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GX) },
3660         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CX) },
3661 #endif /* CONFIG_FB_ATY_GX */
3662
3663 #ifdef CONFIG_FB_ATY_CT
3664         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CT) },
3665         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64ET) },
3666
3667         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LT) },
3668
3669         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VT) },
3670         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GT) },
3671
3672         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VU) },
3673         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GU) },
3674
3675         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LG) },
3676
3677         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VV) },
3678
3679         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GV) },
3680         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GW) },
3681         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GY) },
3682         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GZ) },
3683
3684         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GB) },
3685         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GD) },
3686         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GI) },
3687         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GP) },
3688         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GQ) },
3689
3690         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LB) },
3691         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LD) },
3692         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LI) },
3693         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LP) },
3694         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LQ) },
3695
3696         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GM) },
3697         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GN) },
3698         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GO) },
3699         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GL) },
3700         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GR) },
3701         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GS) },
3702
3703         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LM) },
3704         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LN) },
3705         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LR) },
3706         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LS) },
3707 #endif /* CONFIG_FB_ATY_CT */
3708         { }
3709 };
3710
3711 MODULE_DEVICE_TABLE(pci, atyfb_pci_tbl);
3712
3713 static struct pci_driver atyfb_driver = {
3714         .name           = "atyfb",
3715         .id_table       = atyfb_pci_tbl,
3716         .probe          = atyfb_pci_probe,
3717         .remove         = __devexit_p(atyfb_pci_remove),
3718 #ifdef CONFIG_PM
3719         .suspend        = atyfb_pci_suspend,
3720         .resume         = atyfb_pci_resume,
3721 #endif /* CONFIG_PM */
3722 };
3723
3724 #endif /* CONFIG_PCI */
3725
3726 #ifndef MODULE
3727 static int __init atyfb_setup(char *options)
3728 {
3729         char *this_opt;
3730
3731         if (!options || !*options)
3732                 return 0;
3733
3734         while ((this_opt = strsep(&options, ",")) != NULL) {
3735                 if (!strncmp(this_opt, "noaccel", 7)) {
3736                         noaccel = 1;
3737 #ifdef CONFIG_MTRR
3738                 } else if (!strncmp(this_opt, "nomtrr", 6)) {
3739                         nomtrr = 1;
3740 #endif
3741                 } else if (!strncmp(this_opt, "vram:", 5))
3742                         vram = simple_strtoul(this_opt + 5, NULL, 0);
3743                 else if (!strncmp(this_opt, "pll:", 4))
3744                         pll = simple_strtoul(this_opt + 4, NULL, 0);
3745                 else if (!strncmp(this_opt, "mclk:", 5))
3746                         mclk = simple_strtoul(this_opt + 5, NULL, 0);
3747                 else if (!strncmp(this_opt, "xclk:", 5))
3748                         xclk = simple_strtoul(this_opt+5, NULL, 0);
3749                 else if (!strncmp(this_opt, "comp_sync:", 10))
3750                         comp_sync = simple_strtoul(this_opt+10, NULL, 0);
3751                 else if (!strncmp(this_opt, "backlight:", 10))
3752                         backlight = simple_strtoul(this_opt+10, NULL, 0);
3753 #ifdef CONFIG_PPC
3754                 else if (!strncmp(this_opt, "vmode:", 6)) {
3755                         unsigned int vmode =
3756                             simple_strtoul(this_opt + 6, NULL, 0);
3757                         if (vmode > 0 && vmode <= VMODE_MAX)
3758                                 default_vmode = vmode;
3759                 } else if (!strncmp(this_opt, "cmode:", 6)) {
3760                         unsigned int cmode =
3761                             simple_strtoul(this_opt + 6, NULL, 0);
3762                         switch (cmode) {
3763                         case 0:
3764                         case 8:
3765                                 default_cmode = CMODE_8;
3766                                 break;
3767                         case 15:
3768                         case 16:
3769                                 default_cmode = CMODE_16;
3770                                 break;
3771                         case 24:
3772                         case 32:
3773                                 default_cmode = CMODE_32;
3774                                 break;
3775                         }
3776                 }
3777 #endif
3778 #ifdef CONFIG_ATARI
3779                 /*
3780                  * Why do we need this silly Mach64 argument?
3781                  * We are already here because of mach64= so its redundant.
3782                  */
3783                 else if (MACH_IS_ATARI
3784                          && (!strncmp(this_opt, "Mach64:", 7))) {
3785                         static unsigned char m64_num;
3786                         static char mach64_str[80];
3787                         strlcpy(mach64_str, this_opt + 7, sizeof(mach64_str));
3788                         if (!store_video_par(mach64_str, m64_num)) {
3789                                 m64_num++;
3790                                 mach64_count = m64_num;
3791                         }
3792                 }
3793 #endif
3794                 else
3795                         mode = this_opt;
3796         }
3797         return 0;
3798 }
3799 #endif  /*  MODULE  */
3800
3801 static int __init atyfb_init(void)
3802 {
3803     int err1 = 1, err2 = 1;
3804 #ifndef MODULE
3805     char *option = NULL;
3806
3807     if (fb_get_options("atyfb", &option))
3808         return -ENODEV;
3809     atyfb_setup(option);
3810 #endif
3811
3812 #ifdef CONFIG_PCI
3813     err1 = pci_register_driver(&atyfb_driver);
3814 #endif
3815 #ifdef CONFIG_ATARI
3816     err2 = atyfb_atari_probe();
3817 #endif
3818
3819     return (err1 && err2) ? -ENODEV : 0;
3820 }
3821
3822 static void __exit atyfb_exit(void)
3823 {
3824 #ifdef CONFIG_PCI
3825         pci_unregister_driver(&atyfb_driver);
3826 #endif
3827 }
3828
3829 module_init(atyfb_init);
3830 module_exit(atyfb_exit);
3831
3832 MODULE_DESCRIPTION("FBDev driver for ATI Mach64 cards");
3833 MODULE_LICENSE("GPL");
3834 module_param(noaccel, bool, 0);
3835 MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
3836 module_param(vram, int, 0);
3837 MODULE_PARM_DESC(vram, "int: override size of video ram");
3838 module_param(pll, int, 0);
3839 MODULE_PARM_DESC(pll, "int: override video clock");
3840 module_param(mclk, int, 0);
3841 MODULE_PARM_DESC(mclk, "int: override memory clock");
3842 module_param(xclk, int, 0);
3843 MODULE_PARM_DESC(xclk, "int: override accelerated engine clock");
3844 module_param(comp_sync, int, 0);
3845 MODULE_PARM_DESC(comp_sync,
3846                  "Set composite sync signal to low (0) or high (1)");
3847 module_param(mode, charp, 0);
3848 MODULE_PARM_DESC(mode, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
3849 #ifdef CONFIG_MTRR
3850 module_param(nomtrr, bool, 0);
3851 MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers");
3852 #endif