linux/include/video/newport.h
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   1/* $Id: newport.h,v 1.5 1999/08/04 06:01:51 ulfc Exp $
   2 *
   3 * newport.h: Defines and register layout for NEWPORT graphics
   4 *            hardware.
   5 *
   6 * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
   7 * 
   8 * Ulf Carlsson - Compatibility with the IRIX structures added
   9 */
  10
  11#ifndef _SGI_NEWPORT_H
  12#define _SGI_NEWPORT_H
  13
  14
  15typedef volatile unsigned int npireg_t;
  16
  17union npfloat {
  18        volatile float flt;
  19        npireg_t       word;
  20};
  21
  22typedef union npfloat npfreg_t;
  23
  24union np_dcb {
  25        npireg_t byword;
  26        struct { volatile unsigned short s0, s1; } byshort;
  27        struct { volatile unsigned char b0, b1, b2, b3; } bybytes;
  28};
  29
  30struct newport_rexregs {
  31        npireg_t drawmode1;      /* GL extra mode bits */
  32        
  33#define DM1_PLANES         0x00000007
  34#define    DM1_NOPLANES    0x00000000
  35#define    DM1_RGBPLANES   0x00000001
  36#define    DM1_RGBAPLANES  0x00000002
  37#define    DM1_OLAYPLANES  0x00000004
  38#define    DM1_PUPPLANES   0x00000005
  39#define    DM1_CIDPLANES   0x00000006
  40        
  41#define NPORT_DMODE1_DDMASK      0x00000018
  42#define NPORT_DMODE1_DD4         0x00000000
  43#define NPORT_DMODE1_DD8         0x00000008
  44#define NPORT_DMODE1_DD12        0x00000010
  45#define NPORT_DMODE1_DD24        0x00000018
  46#define NPORT_DMODE1_DSRC        0x00000020
  47#define NPORT_DMODE1_YFLIP       0x00000040
  48#define NPORT_DMODE1_RWPCKD      0x00000080
  49#define NPORT_DMODE1_HDMASK      0x00000300
  50#define NPORT_DMODE1_HD4         0x00000000
  51#define NPORT_DMODE1_HD8         0x00000100
  52#define NPORT_DMODE1_HD12        0x00000200
  53#define NPORT_DMODE1_HD32        0x00000300
  54#define NPORT_DMODE1_RWDBL       0x00000400
  55#define NPORT_DMODE1_ESWAP       0x00000800 /* Endian swap */
  56#define NPORT_DMODE1_CCMASK      0x00007000
  57#define NPORT_DMODE1_CCLT        0x00001000
  58#define NPORT_DMODE1_CCEQ        0x00002000
  59#define NPORT_DMODE1_CCGT        0x00004000
  60#define NPORT_DMODE1_RGBMD       0x00008000
  61#define NPORT_DMODE1_DENAB       0x00010000 /* Dither enable */
  62#define NPORT_DMODE1_FCLR        0x00020000 /* Fast clear */
  63#define NPORT_DMODE1_BENAB       0x00040000 /* Blend enable */
  64#define NPORT_DMODE1_SFMASK      0x00380000
  65#define NPORT_DMODE1_SF0         0x00000000
  66#define NPORT_DMODE1_SF1         0x00080000
  67#define NPORT_DMODE1_SFDC        0x00100000
  68#define NPORT_DMODE1_SFMDC       0x00180000
  69#define NPORT_DMODE1_SFSA        0x00200000
  70#define NPORT_DMODE1_SFMSA       0x00280000
  71#define NPORT_DMODE1_DFMASK      0x01c00000
  72#define NPORT_DMODE1_DF0         0x00000000
  73#define NPORT_DMODE1_DF1         0x00400000
  74#define NPORT_DMODE1_DFSC        0x00800000
  75#define NPORT_DMODE1_DFMSC       0x00c00000
  76#define NPORT_DMODE1_DFSA        0x01000000
  77#define NPORT_DMODE1_DFMSA       0x01400000
  78#define NPORT_DMODE1_BBENAB      0x02000000 /* Back blend enable */
  79#define NPORT_DMODE1_PFENAB      0x04000000 /* Pre-fetch enable */
  80#define NPORT_DMODE1_ABLEND      0x08000000 /* Alpha blend */
  81#define NPORT_DMODE1_LOMASK      0xf0000000
  82#define NPORT_DMODE1_LOZERO      0x00000000
  83#define NPORT_DMODE1_LOAND       0x10000000
  84#define NPORT_DMODE1_LOANDR      0x20000000
  85#define NPORT_DMODE1_LOSRC       0x30000000
  86#define NPORT_DMODE1_LOANDI      0x40000000
  87#define NPORT_DMODE1_LODST       0x50000000
  88#define NPORT_DMODE1_LOXOR       0x60000000
  89#define NPORT_DMODE1_LOOR        0x70000000
  90#define NPORT_DMODE1_LONOR       0x80000000
  91#define NPORT_DMODE1_LOXNOR      0x90000000
  92#define NPORT_DMODE1_LONDST      0xa0000000
  93#define NPORT_DMODE1_LOORR       0xb0000000
  94#define NPORT_DMODE1_LONSRC      0xc0000000
  95#define NPORT_DMODE1_LOORI       0xd0000000
  96#define NPORT_DMODE1_LONAND      0xe0000000
  97#define NPORT_DMODE1_LOONE       0xf0000000
  98
  99        npireg_t drawmode0;      /* REX command register */
 100
 101        /* These bits define the graphics opcode being performed. */
 102#define NPORT_DMODE0_OPMASK   0x00000003 /* Opcode mask */
 103#define NPORT_DMODE0_NOP      0x00000000 /* No operation */
 104#define NPORT_DMODE0_RD       0x00000001 /* Read operation */
 105#define NPORT_DMODE0_DRAW     0x00000002 /* Draw operation */
 106#define NPORT_DMODE0_S2S      0x00000003 /* Screen to screen operation */
 107
 108        /* The following decide what addressing mode(s) are to be used */
 109#define NPORT_DMODE0_AMMASK   0x0000001c /* Address mode mask */
 110#define NPORT_DMODE0_SPAN     0x00000000 /* Spanning address mode */
 111#define NPORT_DMODE0_BLOCK    0x00000004 /* Block address mode */
 112#define NPORT_DMODE0_ILINE    0x00000008 /* Iline address mode */
 113#define NPORT_DMODE0_FLINE    0x0000000c /* Fline address mode */
 114#define NPORT_DMODE0_ALINE    0x00000010 /* Aline address mode */
 115#define NPORT_DMODE0_TLINE    0x00000014 /* Tline address mode */
 116#define NPORT_DMODE0_BLINE    0x00000018 /* Bline address mode */
 117
 118        /* And now some misc. operation control bits. */
 119#define NPORT_DMODE0_DOSETUP  0x00000020
 120#define NPORT_DMODE0_CHOST    0x00000040
 121#define NPORT_DMODE0_AHOST    0x00000080
 122#define NPORT_DMODE0_STOPX    0x00000100
 123#define NPORT_DMODE0_STOPY    0x00000200
 124#define NPORT_DMODE0_SK1ST    0x00000400
 125#define NPORT_DMODE0_SKLST    0x00000800
 126#define NPORT_DMODE0_ZPENAB   0x00001000
 127#define NPORT_DMODE0_LISPENAB 0x00002000
 128#define NPORT_DMODE0_LISLST   0x00004000
 129#define NPORT_DMODE0_L32      0x00008000
 130#define NPORT_DMODE0_ZOPQ     0x00010000
 131#define NPORT_DMODE0_LISOPQ   0x00020000
 132#define NPORT_DMODE0_SHADE    0x00040000
 133#define NPORT_DMODE0_LRONLY   0x00080000
 134#define NPORT_DMODE0_XYOFF    0x00100000
 135#define NPORT_DMODE0_CLAMP    0x00200000
 136#define NPORT_DMODE0_ENDPF    0x00400000
 137#define NPORT_DMODE0_YSTR     0x00800000
 138
 139        npireg_t lsmode;      /* Mode for line stipple ops */
 140        npireg_t lspattern;   /* Pattern for line stipple ops */
 141        npireg_t lspatsave;   /* Backup save pattern */
 142        npireg_t zpattern;    /* Pixel zpattern */
 143        npireg_t colorback;   /* Background color */
 144        npireg_t colorvram;   /* Clear color for fast vram */
 145        npireg_t alpharef;    /* Reference value for afunctions */
 146        unsigned int pad0;
 147        npireg_t smask0x;     /* Window GL relative screen mask 0 */
 148        npireg_t smask0y;     /* Window GL relative screen mask 0 */
 149        npireg_t _setup;
 150        npireg_t _stepz;
 151        npireg_t _lsrestore;
 152        npireg_t _lssave;
 153
 154        unsigned int _pad1[0x30];
 155
 156        /* Iterators, full state for context switch */
 157        npfreg_t _xstart;       /* X-start point (current) */
 158        npfreg_t _ystart;       /* Y-start point (current) */
 159        npfreg_t _xend;         /* x-end point */
 160        npfreg_t _yend;         /* y-end point */
 161        npireg_t xsave;         /* copy of xstart integer value for BLOCk addressing MODE */
 162        npireg_t xymove;        /* x.y offset from xstart, ystart for relative operations */
 163        npfreg_t bresd;
 164        npfreg_t bress1;
 165        npireg_t bresoctinc1;
 166        volatile int bresrndinc2;
 167        npireg_t brese1;
 168        npireg_t bress2;
 169        npireg_t aweight0;
 170        npireg_t aweight1;
 171        npfreg_t xstartf;
 172        npfreg_t ystartf;
 173        npfreg_t xendf;
 174        npfreg_t yendf;
 175        npireg_t xstarti;
 176        npfreg_t xendf1;
 177        npireg_t xystarti;
 178        npireg_t xyendi;
 179        npireg_t xstartendi;
 180
 181        unsigned int _unused2[0x29];
 182
 183        npfreg_t colorred;
 184        npfreg_t coloralpha;
 185        npfreg_t colorgrn;
 186        npfreg_t colorblue;
 187        npfreg_t slopered;
 188        npfreg_t slopealpha;
 189        npfreg_t slopegrn;
 190        npfreg_t slopeblue;
 191        npireg_t wrmask;
 192        npireg_t colori;
 193        npfreg_t colorx;
 194        npfreg_t slopered1;
 195        npireg_t hostrw0;
 196        npireg_t hostrw1;
 197        npireg_t dcbmode;
 198#define NPORT_DMODE_WMASK   0x00000003
 199#define NPORT_DMODE_W4      0x00000000
 200#define NPORT_DMODE_W1      0x00000001
 201#define NPORT_DMODE_W2      0x00000002
 202#define NPORT_DMODE_W3      0x00000003
 203#define NPORT_DMODE_EDPACK  0x00000004
 204#define NPORT_DMODE_ECINC   0x00000008
 205#define NPORT_DMODE_CMASK   0x00000070
 206#define NPORT_DMODE_AMASK   0x00000780
 207#define NPORT_DMODE_AVC2    0x00000000
 208#define NPORT_DMODE_ACMALL  0x00000080
 209#define NPORT_DMODE_ACM0    0x00000100
 210#define NPORT_DMODE_ACM1    0x00000180
 211#define NPORT_DMODE_AXMALL  0x00000200
 212#define NPORT_DMODE_AXM0    0x00000280
 213#define NPORT_DMODE_AXM1    0x00000300
 214#define NPORT_DMODE_ABT     0x00000380
 215#define NPORT_DMODE_AVCC1   0x00000400
 216#define NPORT_DMODE_AVAB1   0x00000480
 217#define NPORT_DMODE_ALG3V0  0x00000500
 218#define NPORT_DMODE_A1562   0x00000580
 219#define NPORT_DMODE_ESACK   0x00000800
 220#define NPORT_DMODE_EASACK  0x00001000
 221#define NPORT_DMODE_CWMASK  0x0003e000
 222#define NPORT_DMODE_CHMASK  0x007c0000
 223#define NPORT_DMODE_CSMASK  0x0f800000
 224#define NPORT_DMODE_SENDIAN 0x10000000
 225
 226        unsigned int _unused3;
 227
 228        union np_dcb dcbdata0;
 229        npireg_t dcbdata1;
 230};
 231
 232struct newport_cregs {
 233        npireg_t smask1x;
 234        npireg_t smask1y;
 235        npireg_t smask2x;
 236        npireg_t smask2y;
 237        npireg_t smask3x;
 238        npireg_t smask3y;
 239        npireg_t smask4x;
 240        npireg_t smask4y;
 241        npireg_t topscan;
 242        npireg_t xywin;
 243        npireg_t clipmode;
 244#define NPORT_CMODE_SM0   0x00000001
 245#define NPORT_CMODE_SM1   0x00000002
 246#define NPORT_CMODE_SM2   0x00000004
 247#define NPORT_CMODE_SM3   0x00000008
 248#define NPORT_CMODE_SM4   0x00000010
 249#define NPORT_CMODE_CMSK  0x00001e00
 250
 251        unsigned int _unused0;
 252        unsigned int config;
 253#define NPORT_CFG_G32MD   0x00000001
 254#define NPORT_CFG_BWIDTH  0x00000002
 255#define NPORT_CFG_ERCVR   0x00000004
 256#define NPORT_CFG_BDMSK   0x00000078
 257#define NPORT_CFG_BFAINT  0x00000080
 258#define NPORT_CFG_GDMSK   0x00001f80
 259#define NPORT_CFG_GD0     0x00000100
 260#define NPORT_CFG_GD1     0x00000200
 261#define NPORT_CFG_GD2     0x00000400
 262#define NPORT_CFG_GD3     0x00000800
 263#define NPORT_CFG_GD4     0x00001000
 264#define NPORT_CFG_GFAINT  0x00002000
 265#define NPORT_CFG_TOMSK   0x0001c000
 266#define NPORT_CFG_VRMSK   0x000e0000
 267#define NPORT_CFG_FBTYP   0x00100000
 268
 269        npireg_t _unused1;
 270        npireg_t status;
 271#define NPORT_STAT_VERS   0x00000007
 272#define NPORT_STAT_GBUSY  0x00000008
 273#define NPORT_STAT_BBUSY  0x00000010
 274#define NPORT_STAT_VRINT  0x00000020
 275#define NPORT_STAT_VIDINT 0x00000040
 276#define NPORT_STAT_GLMSK  0x00001f80
 277#define NPORT_STAT_BLMSK  0x0007e000
 278#define NPORT_STAT_BFIRQ  0x00080000
 279#define NPORT_STAT_GFIRQ  0x00100000
 280
 281        npireg_t ustatus;
 282        npireg_t dcbreset;
 283};
 284
 285struct newport_regs {
 286        struct newport_rexregs set;
 287        unsigned int _unused0[0x16e];
 288        struct newport_rexregs go;
 289        unsigned int _unused1[0x22e];
 290        struct newport_cregs cset;
 291        unsigned int _unused2[0x1ef];
 292        struct newport_cregs cgo;
 293};
 294
 295typedef struct {
 296        unsigned int drawmode1;
 297        unsigned int drawmode0;
 298        unsigned int lsmode;   
 299        unsigned int lspattern;
 300        unsigned int lspatsave;
 301        unsigned int zpattern; 
 302        unsigned int colorback;
 303        unsigned int colorvram;
 304        unsigned int alpharef; 
 305        unsigned int smask0x;  
 306        unsigned int smask0y;  
 307        unsigned int _xstart;  
 308        unsigned int _ystart;  
 309        unsigned int _xend;    
 310        unsigned int _yend;    
 311        unsigned int xsave;    
 312        unsigned int xymove;   
 313        unsigned int bresd;    
 314        unsigned int bress1;   
 315        unsigned int bresoctinc1;
 316        unsigned int bresrndinc2;
 317        unsigned int brese1;     
 318        unsigned int bress2;     
 319        
 320        unsigned int aweight0;    
 321        unsigned int aweight1;    
 322        unsigned int colorred;    
 323        unsigned int coloralpha;  
 324        unsigned int colorgrn;    
 325        unsigned int colorblue;   
 326        unsigned int slopered;    
 327        unsigned int slopealpha;  
 328        unsigned int slopegrn;    
 329        unsigned int slopeblue;   
 330        unsigned int wrmask;      
 331        unsigned int hostrw0;     
 332        unsigned int hostrw1;     
 333        
 334        /* configregs */
 335        
 336        unsigned int smask1x;    
 337        unsigned int smask1y;    
 338        unsigned int smask2x;    
 339        unsigned int smask2y;    
 340        unsigned int smask3x;    
 341        unsigned int smask3y;    
 342        unsigned int smask4x;    
 343        unsigned int smask4y;    
 344        unsigned int topscan;    
 345        unsigned int xywin;      
 346        unsigned int clipmode;   
 347        unsigned int config;     
 348        
 349        /* dcb registers */
 350        unsigned int dcbmode;   
 351        unsigned int dcbdata0;  
 352        unsigned int dcbdata1;
 353} newport_ctx;
 354
 355/* Reading/writing VC2 registers. */
 356#define VC2_REGADDR_INDEX      0x00000000
 357#define VC2_REGADDR_IREG       0x00000010
 358#define VC2_REGADDR_RAM        0x00000030
 359#define VC2_PROTOCOL           (NPORT_DMODE_EASACK | 0x00800000 | 0x00040000)
 360
 361#define VC2_VLINET_ADDR        0x000
 362#define VC2_VFRAMET_ADDR       0x400
 363#define VC2_CGLYPH_ADDR        0x500
 364
 365/* Now the Indexed registers of the VC2. */
 366#define VC2_IREG_VENTRY        0x00
 367#define VC2_IREG_CENTRY        0x01
 368#define VC2_IREG_CURSX         0x02
 369#define VC2_IREG_CURSY         0x03
 370#define VC2_IREG_CCURSX        0x04
 371#define VC2_IREG_DENTRY        0x05
 372#define VC2_IREG_SLEN          0x06
 373#define VC2_IREG_RADDR         0x07
 374#define VC2_IREG_VFPTR         0x08
 375#define VC2_IREG_VLSPTR        0x09
 376#define VC2_IREG_VLIR          0x0a
 377#define VC2_IREG_VLCTR         0x0b
 378#define VC2_IREG_CTPTR         0x0c
 379#define VC2_IREG_WCURSY        0x0d
 380#define VC2_IREG_DFPTR         0x0e
 381#define VC2_IREG_DLTPTR        0x0f
 382#define VC2_IREG_CONTROL       0x10
 383#define VC2_IREG_CONFIG        0x20
 384
 385static inline void newport_vc2_set(struct newport_regs *regs,
 386                                   unsigned char vc2ireg,
 387                                   unsigned short val)
 388{
 389        regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_INDEX | NPORT_DMODE_W3 |
 390                           NPORT_DMODE_ECINC | VC2_PROTOCOL);
 391        regs->set.dcbdata0.byword = (vc2ireg << 24) | (val << 8);
 392}
 393
 394static inline unsigned short newport_vc2_get(struct newport_regs *regs,
 395                                             unsigned char vc2ireg)
 396{
 397        regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_INDEX | NPORT_DMODE_W1 |
 398                           NPORT_DMODE_ECINC | VC2_PROTOCOL);
 399        regs->set.dcbdata0.bybytes.b3 = vc2ireg;
 400        regs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_IREG | NPORT_DMODE_W2 |
 401                           NPORT_DMODE_ECINC | VC2_PROTOCOL);
 402        return regs->set.dcbdata0.byshort.s1;
 403}
 404
 405/* VC2 Control register bits */
 406#define VC2_CTRL_EVIRQ     0x0001
 407#define VC2_CTRL_EDISP     0x0002
 408#define VC2_CTRL_EVIDEO    0x0004
 409#define VC2_CTRL_EDIDS     0x0008
 410#define VC2_CTRL_ECURS     0x0010
 411#define VC2_CTRL_EGSYNC    0x0020
 412#define VC2_CTRL_EILACE    0x0040
 413#define VC2_CTRL_ECDISP    0x0080
 414#define VC2_CTRL_ECCURS    0x0100
 415#define VC2_CTRL_ECG64     0x0200
 416#define VC2_CTRL_GLSEL     0x0400
 417
 418/* Controlling the color map on NEWPORT. */
 419#define NCMAP_REGADDR_AREG   0x00000000
 420#define NCMAP_REGADDR_ALO    0x00000000
 421#define NCMAP_REGADDR_AHI    0x00000010
 422#define NCMAP_REGADDR_PBUF   0x00000020
 423#define NCMAP_REGADDR_CREG   0x00000030
 424#define NCMAP_REGADDR_SREG   0x00000040
 425#define NCMAP_REGADDR_RREG   0x00000060
 426#define NCMAP_PROTOCOL       (0x00008000 | 0x00040000 | 0x00800000)
 427
 428static __inline__ void newport_cmap_setaddr(struct newport_regs *regs,
 429                                        unsigned short addr)
 430{
 431        regs->set.dcbmode = (NPORT_DMODE_ACMALL | NCMAP_PROTOCOL |
 432                           NPORT_DMODE_SENDIAN | NPORT_DMODE_ECINC |
 433                           NCMAP_REGADDR_AREG | NPORT_DMODE_W2);
 434        regs->set.dcbdata0.byshort.s1 = addr;
 435        regs->set.dcbmode = (NPORT_DMODE_ACMALL | NCMAP_PROTOCOL |
 436                           NCMAP_REGADDR_PBUF | NPORT_DMODE_W3);
 437}
 438
 439static __inline__ void newport_cmap_setrgb(struct newport_regs *regs,
 440                                       unsigned char red,
 441                                       unsigned char green,
 442                                       unsigned char blue)
 443{
 444        regs->set.dcbdata0.byword =
 445                (red << 24) |
 446                (green << 16) |
 447                (blue << 8);
 448}
 449
 450/* Miscellaneous NEWPORT routines. */
 451#define BUSY_TIMEOUT 100000
 452static __inline__ int newport_wait(struct newport_regs *regs)
 453{
 454        int t = BUSY_TIMEOUT;
 455
 456        while (--t)
 457                if (!(regs->cset.status & NPORT_STAT_GBUSY))
 458                        break;
 459        return !t;
 460}
 461
 462static __inline__ int newport_bfwait(struct newport_regs *regs)
 463{
 464        int t = BUSY_TIMEOUT;
 465
 466        while (--t)
 467                if(!(regs->cset.status & NPORT_STAT_BBUSY))
 468                        break;
 469        return !t;
 470}
 471
 472/*
 473 * DCBMODE register defines:
 474 */
 475
 476/* Width of the data being transferred for each DCBDATA[01] word */
 477#define DCB_DATAWIDTH_4 0x0
 478#define DCB_DATAWIDTH_1 0x1
 479#define DCB_DATAWIDTH_2 0x2
 480#define DCB_DATAWIDTH_3 0x3
 481
 482/* If set, all of DCBDATA will be moved, otherwise only DATAWIDTH bytes */
 483#define DCB_ENDATAPACK   (1 << 2)
 484
 485/* Enables DCBCRS auto increment after each DCB transfer */
 486#define DCB_ENCRSINC     (1 << 3)
 487
 488/* shift for accessing the control register select address (DBCCRS, 3 bits) */
 489#define DCB_CRS_SHIFT    4
 490
 491/* DCBADDR (4 bits): display bus slave address */
 492#define DCB_ADDR_SHIFT   7
 493#define DCB_VC2          (0 <<  DCB_ADDR_SHIFT)
 494#define DCB_CMAP_ALL     (1 <<  DCB_ADDR_SHIFT)
 495#define DCB_CMAP0        (2 <<  DCB_ADDR_SHIFT)
 496#define DCB_CMAP1        (3 <<  DCB_ADDR_SHIFT)
 497#define DCB_XMAP_ALL     (4 <<  DCB_ADDR_SHIFT)
 498#define DCB_XMAP0        (5 <<  DCB_ADDR_SHIFT)
 499#define DCB_XMAP1        (6 <<  DCB_ADDR_SHIFT)
 500#define DCB_BT445        (7 <<  DCB_ADDR_SHIFT)
 501#define DCB_VCC1         (8 <<  DCB_ADDR_SHIFT)
 502#define DCB_VAB1         (9 <<  DCB_ADDR_SHIFT)
 503#define DCB_LG3_BDVERS0  (10 << DCB_ADDR_SHIFT)
 504#define DCB_LG3_ICS1562  (11 << DCB_ADDR_SHIFT)
 505#define DCB_RESERVED     (15 << DCB_ADDR_SHIFT)
 506
 507/* DCB protocol ack types */
 508#define DCB_ENSYNCACK    (1 << 11)
 509#define DCB_ENASYNCACK   (1 << 12)
 510
 511#define DCB_CSWIDTH_SHIFT 13
 512#define DCB_CSHOLD_SHIFT  18
 513#define DCB_CSSETUP_SHIFT 23
 514
 515/* XMAP9 specific defines */
 516/*   XMAP9 -- registers as seen on the DCBMODE register*/
 517#   define XM9_CRS_CONFIG            (0 << DCB_CRS_SHIFT)
 518#       define XM9_PUPMODE           (1 << 0)
 519#       define XM9_ODD_PIXEL         (1 << 1)
 520#       define XM9_8_BITPLANES       (1 << 2)
 521#       define XM9_SLOW_DCB          (1 << 3)
 522#       define XM9_VIDEO_RGBMAP_MASK (3 << 4)
 523#       define XM9_EXPRESS_VIDEO     (1 << 6)
 524#       define XM9_VIDEO_OPTION      (1 << 7)
 525#   define XM9_CRS_REVISION          (1 << DCB_CRS_SHIFT)
 526#   define XM9_CRS_FIFO_AVAIL        (2 << DCB_CRS_SHIFT)
 527#       define XM9_FIFO_0_AVAIL      0
 528#       define XM9_FIFO_1_AVAIL      1
 529#       define XM9_FIFO_2_AVAIL      3
 530#       define XM9_FIFO_3_AVAIL      2
 531#       define XM9_FIFO_FULL         XM9_FIFO_0_AVAIL
 532#       define XM9_FIFO_EMPTY        XM9_FIFO_3_AVAIL
 533#   define XM9_CRS_CURS_CMAP_MSB     (3 << DCB_CRS_SHIFT)
 534#   define XM9_CRS_PUP_CMAP_MSB      (4 << DCB_CRS_SHIFT)
 535#   define XM9_CRS_MODE_REG_DATA     (5 << DCB_CRS_SHIFT)
 536#   define XM9_CRS_MODE_REG_INDEX    (7 << DCB_CRS_SHIFT)
 537
 538
 539#define DCB_CYCLES(setup,hold,width)                \
 540                  ((hold << DCB_CSHOLD_SHIFT)  |    \
 541                   (setup << DCB_CSSETUP_SHIFT)|    \
 542                   (width << DCB_CSWIDTH_SHIFT))
 543
 544#define W_DCB_XMAP9_PROTOCOL       DCB_CYCLES (2, 1, 0)
 545#define WSLOW_DCB_XMAP9_PROTOCOL   DCB_CYCLES (5, 5, 0)
 546#define WAYSLOW_DCB_XMAP9_PROTOCOL DCB_CYCLES (12, 12, 0)
 547#define R_DCB_XMAP9_PROTOCOL       DCB_CYCLES (2, 1, 3)
 548
 549static __inline__ void
 550xmap9FIFOWait (struct newport_regs *rex)
 551{
 552        rex->set.dcbmode = DCB_XMAP0 | XM9_CRS_FIFO_AVAIL |
 553                DCB_DATAWIDTH_1 | R_DCB_XMAP9_PROTOCOL;
 554        newport_bfwait (rex);
 555        
 556        while ((rex->set.dcbdata0.bybytes.b3 & 3) != XM9_FIFO_EMPTY)
 557                ;
 558}
 559
 560static __inline__ void
 561xmap9SetModeReg (struct newport_regs *rex, unsigned int modereg, unsigned int data24, int cfreq)
 562{
 563        if (cfreq > 119)
 564            rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
 565                        DCB_DATAWIDTH_4 | W_DCB_XMAP9_PROTOCOL;
 566        else if (cfreq > 59)
 567            rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
 568                    DCB_DATAWIDTH_4 | WSLOW_DCB_XMAP9_PROTOCOL;    
 569        else
 570            rex->set.dcbmode = DCB_XMAP_ALL | XM9_CRS_MODE_REG_DATA |
 571                        DCB_DATAWIDTH_4 | WAYSLOW_DCB_XMAP9_PROTOCOL; 
 572        rex->set.dcbdata0.byword = ((modereg) << 24) | (data24 & 0xffffff);
 573}
 574
 575#define BT445_PROTOCOL          DCB_CYCLES(1,1,3)
 576
 577#define BT445_CSR_ADDR_REG      (0 << DCB_CRS_SHIFT)
 578#define BT445_CSR_REVISION      (2 << DCB_CRS_SHIFT)
 579
 580#define BT445_REVISION_REG      0x01
 581
 582#endif /* !(_SGI_NEWPORT_H) */
 583
 584
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