linux/drivers/video/savage/savagefb.h
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   1/*
   2 * linux/drivers/video/savagefb.h -- S3 Savage Framebuffer Driver
   3 *
   4 * Copyright (c) 2001  Denis Oliver Kropp <dok@convergence.de>
   5 *
   6 * This file is subject to the terms and conditions of the GNU General
   7 * Public License.  See the file COPYING in the main directory of this
   8 * archive for more details.
   9 */
  10
  11
  12#ifndef __SAVAGEFB_H__
  13#define __SAVAGEFB_H__
  14
  15#include <linux/i2c.h>
  16#include <linux/i2c-algo-bit.h>
  17#include <linux/mutex.h>
  18#include <video/vga.h>
  19#include "../edid.h"
  20
  21#ifdef SAVAGEFB_DEBUG
  22# define DBG(x)         printk (KERN_DEBUG "savagefb: %s\n", (x));
  23#else
  24# define DBG(x)
  25# define SavagePrintRegs(...)
  26#endif
  27
  28
  29#define PCI_CHIP_SAVAGE4      0x8a22
  30#define PCI_CHIP_SAVAGE3D     0x8a20
  31#define PCI_CHIP_SAVAGE3D_MV  0x8a21
  32#define PCI_CHIP_SAVAGE2000   0x9102
  33#define PCI_CHIP_SAVAGE_MX_MV 0x8c10
  34#define PCI_CHIP_SAVAGE_MX    0x8c11
  35#define PCI_CHIP_SAVAGE_IX_MV 0x8c12
  36#define PCI_CHIP_SAVAGE_IX    0x8c13
  37#define PCI_CHIP_PROSAVAGE_PM 0x8a25
  38#define PCI_CHIP_PROSAVAGE_KM 0x8a26
  39#define PCI_CHIP_S3TWISTER_P  0x8d01
  40#define PCI_CHIP_S3TWISTER_K  0x8d02
  41#define PCI_CHIP_PROSAVAGE_DDR          0x8d03
  42#define PCI_CHIP_PROSAVAGE_DDRK         0x8d04
  43#define PCI_CHIP_SUPSAV_MX128           0x8c22
  44#define PCI_CHIP_SUPSAV_MX64            0x8c24
  45#define PCI_CHIP_SUPSAV_MX64C           0x8c26
  46#define PCI_CHIP_SUPSAV_IX128SDR        0x8c2a
  47#define PCI_CHIP_SUPSAV_IX128DDR        0x8c2b
  48#define PCI_CHIP_SUPSAV_IX64SDR         0x8c2c
  49#define PCI_CHIP_SUPSAV_IX64DDR         0x8c2d
  50#define PCI_CHIP_SUPSAV_IXCSDR          0x8c2e
  51#define PCI_CHIP_SUPSAV_IXCDDR          0x8c2f
  52
  53
  54#define S3_SAVAGE_SERIES(chip)    ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE2000))
  55
  56#define S3_SAVAGE3D_SERIES(chip)  ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE_MX))
  57
  58#define S3_SAVAGE4_SERIES(chip)   ((chip>=S3_SAVAGE4) && (chip<=S3_PROSAVAGEDDR))
  59
  60#define S3_SAVAGE_MOBILE_SERIES(chip)  ((chip==S3_SAVAGE_MX) || (chip==S3_SUPERSAVAGE))
  61
  62#define S3_MOBILE_TWISTER_SERIES(chip) ((chip==S3_TWISTER) || (chip==S3_PROSAVAGEDDR))
  63
  64/* Chip tags.  These are used to group the adapters into
  65 * related families.
  66 */
  67
  68typedef enum {
  69  S3_UNKNOWN = 0,
  70  S3_SAVAGE3D,
  71  S3_SAVAGE_MX,
  72  S3_SAVAGE4,
  73  S3_PROSAVAGE,
  74  S3_TWISTER,
  75  S3_PROSAVAGEDDR,
  76  S3_SUPERSAVAGE,
  77  S3_SAVAGE2000,
  78  S3_LAST
  79} savage_chipset;
  80
  81#define BIOS_BSIZE                   1024
  82#define BIOS_BASE                    0xc0000
  83
  84#define SAVAGE_NEWMMIO_REGBASE_S3    0x1000000  /* 16MB */
  85#define SAVAGE_NEWMMIO_REGBASE_S4    0x0000000
  86#define SAVAGE_NEWMMIO_REGSIZE       0x0080000  /* 512kb */
  87#define SAVAGE_NEWMMIO_VGABASE       0x8000
  88
  89#define BASE_FREQ                    14318
  90#define HALF_BASE_FREQ               7159
  91
  92#define FIFO_CONTROL_REG             0x8200
  93#define MIU_CONTROL_REG              0x8204
  94#define STREAMS_TIMEOUT_REG          0x8208
  95#define MISC_TIMEOUT_REG             0x820c
  96
  97#define MONO_PAT_0                   0xa4e8
  98#define MONO_PAT_1                   0xa4ec
  99
 100#define MAXFIFO                      0x7f00
 101
 102#define BCI_CMD_NOP                  0x40000000
 103#define BCI_CMD_SETREG               0x96000000
 104#define BCI_CMD_RECT                 0x48000000
 105#define BCI_CMD_RECT_XP              0x01000000
 106#define BCI_CMD_RECT_YP              0x02000000
 107#define BCI_CMD_SEND_COLOR           0x00008000
 108#define BCI_CMD_DEST_GBD             0x00000000
 109#define BCI_CMD_SRC_GBD              0x00000020
 110#define BCI_CMD_SRC_SOLID            0x00000000
 111#define BCI_CMD_SRC_MONO             0x00000060
 112#define BCI_CMD_CLIP_NEW             0x00006000
 113#define BCI_CMD_CLIP_LR              0x00004000
 114
 115#define BCI_CLIP_LR(l, r)            ((((r) << 16) | (l)) & 0x0FFF0FFF)
 116#define BCI_CLIP_TL(t, l)            ((((t) << 16) | (l)) & 0x0FFF0FFF)
 117#define BCI_CLIP_BR(b, r)            ((((b) << 16) | (r)) & 0x0FFF0FFF)
 118#define BCI_W_H(w, h)                (((h) << 16) | ((w) & 0xFFF))
 119#define BCI_X_Y(x, y)                (((y) << 16) | ((x) & 0xFFF))
 120
 121#define BCI_GBD1                     0xE0
 122#define BCI_GBD2                     0xE1
 123
 124#define BCI_BUFFER_OFFSET            0x10000
 125#define BCI_SIZE                     0x4000
 126
 127#define BCI_SEND(dw)                 writel(dw, par->bci_base + par->bci_ptr++)
 128
 129#define BCI_CMD_GET_ROP(cmd)         (((cmd) >> 16) & 0xFF)
 130#define BCI_CMD_SET_ROP(cmd, rop)    ((cmd) |= ((rop & 0xFF) << 16))
 131#define BCI_CMD_SEND_COLOR           0x00008000
 132
 133#define DISP_CRT     1
 134#define DISP_LCD     2
 135#define DISP_DFP     3
 136
 137struct xtimings {
 138        unsigned int Clock;
 139        unsigned int HDisplay;
 140        unsigned int HSyncStart;
 141        unsigned int HSyncEnd;
 142        unsigned int HTotal;
 143        unsigned int HAdjusted;
 144        unsigned int VDisplay;
 145        unsigned int VSyncStart;
 146        unsigned int VSyncEnd;
 147        unsigned int VTotal;
 148        unsigned int sync;
 149        int            dblscan;
 150        int            interlaced;
 151};
 152
 153struct savage_reg {
 154        unsigned char MiscOutReg;     /* Misc */
 155        unsigned char CRTC[25];       /* Crtc Controller */
 156        unsigned char Sequencer[5];   /* Video Sequencer */
 157        unsigned char Graphics[9];    /* Video Graphics */
 158        unsigned char Attribute[21];  /* Video Attribute */
 159
 160        unsigned int mode, refresh;
 161        unsigned char SR08, SR0E, SR0F;
 162        unsigned char SR10, SR11, SR12, SR13, SR15, SR18, SR29, SR30;
 163        unsigned char SR54[8];
 164        unsigned char Clock;
 165        unsigned char CR31, CR32, CR33, CR34, CR36, CR3A, CR3B, CR3C;
 166        unsigned char CR40, CR41, CR42, CR43, CR45;
 167        unsigned char CR50, CR51, CR53, CR55, CR58, CR5B, CR5D, CR5E;
 168        unsigned char CR60, CR63, CR65, CR66, CR67, CR68, CR69, CR6D, CR6F;
 169        unsigned char CR86, CR88;
 170        unsigned char CR90, CR91, CRB0;
 171        unsigned int  STREAMS[22];      /* yuck, streams regs */
 172        unsigned int  MMPR0, MMPR1, MMPR2, MMPR3;
 173};
 174/* --------------------------------------------------------------------- */
 175
 176#define NR_PALETTE      256
 177
 178
 179struct savagefb_par;
 180
 181struct savagefb_i2c_chan {
 182        struct savagefb_par *par;
 183        struct i2c_adapter adapter;
 184        struct i2c_algo_bit_data algo;
 185        volatile u8 __iomem *ioaddr;
 186        u32   reg;
 187};
 188
 189struct savagefb_par {
 190        struct pci_dev *pcidev;
 191        savage_chipset  chip;
 192        struct savagefb_i2c_chan chan;
 193        struct savage_reg state;
 194        struct savage_reg save;
 195        struct savage_reg initial;
 196        struct vgastate vgastate;
 197        struct mutex open_lock;
 198        unsigned char   *edid;
 199        u32 pseudo_palette[16];
 200        u32 open_count;
 201        int paletteEnabled;
 202        int pm_state;
 203        int display_type;
 204        int dvi;
 205        int crtonly;
 206        int dacSpeedBpp;
 207        int maxClock;
 208        int minClock;
 209        int numClocks;
 210        int clock[4];
 211        int MCLK, REFCLK, LCDclk;
 212        struct {
 213                void   __iomem *vbase;
 214                u32    pbase;
 215                u32    len;
 216#ifdef CONFIG_MTRR
 217                int    mtrr;
 218#endif
 219        } video;
 220
 221        struct {
 222                void  __iomem *vbase;
 223                u32           pbase;
 224                u32           len;
 225        } mmio;
 226
 227        volatile u32  __iomem *bci_base;
 228        unsigned int  bci_ptr;
 229        u32           cob_offset;
 230        u32           cob_size;
 231        int           cob_index;
 232
 233        void (*SavageWaitIdle) (struct savagefb_par *par);
 234        void (*SavageWaitFifo) (struct savagefb_par *par, int space);
 235
 236        int HorizScaleFactor;
 237
 238        /* Panels size */
 239        int SavagePanelWidth;
 240        int SavagePanelHeight;
 241
 242        struct {
 243                u16 red, green, blue, transp;
 244        } palette[NR_PALETTE];
 245
 246        int depth;
 247        int vwidth;
 248};
 249
 250#define BCI_BD_BW_DISABLE            0x10000000
 251#define BCI_BD_SET_BPP(bd, bpp)      ((bd) |= (((bpp) & 0xFF) << 16))
 252#define BCI_BD_SET_STRIDE(bd, st)    ((bd) |= ((st) & 0xFFFF))
 253
 254
 255/* IO functions */
 256static inline u8 savage_in8(u32 addr, struct savagefb_par *par)
 257{
 258        return readb(par->mmio.vbase + addr);
 259}
 260
 261static inline u16 savage_in16(u32 addr, struct savagefb_par *par)
 262{
 263        return readw(par->mmio.vbase + addr);
 264}
 265
 266static inline u32 savage_in32(u32 addr, struct savagefb_par *par)
 267{
 268        return readl(par->mmio.vbase + addr);
 269}
 270
 271static inline void savage_out8(u32 addr, u8 val, struct savagefb_par *par)
 272{
 273        writeb(val, par->mmio.vbase + addr);
 274}
 275
 276static inline void savage_out16(u32 addr, u16 val, struct savagefb_par *par)
 277{
 278        writew(val, par->mmio.vbase + addr);
 279}
 280
 281static inline void savage_out32(u32 addr, u32 val, struct savagefb_par *par)
 282{
 283        writel(val, par->mmio.vbase + addr);
 284}
 285
 286static inline u8 vga_in8(int addr, struct savagefb_par *par)
 287{
 288        return savage_in8(0x8000 + addr, par);
 289}
 290
 291static inline u16 vga_in16(int addr, struct savagefb_par *par)
 292{
 293        return savage_in16(0x8000 + addr, par);
 294}
 295
 296static inline u8 vga_in32(int addr, struct savagefb_par *par)
 297{
 298        return savage_in32(0x8000 + addr, par);
 299}
 300
 301static inline void vga_out8(int addr, u8 val, struct savagefb_par *par)
 302{
 303        savage_out8(0x8000 + addr, val, par);
 304}
 305
 306static inline void vga_out16(int addr, u16 val, struct savagefb_par *par)
 307{
 308        savage_out16(0x8000 + addr, val, par);
 309}
 310
 311static inline void vga_out32(int addr, u32 val, struct savagefb_par *par)
 312{
 313        savage_out32(0x8000 + addr, val, par);
 314}
 315
 316static inline u8 VGArCR (u8 index, struct savagefb_par *par)
 317{
 318        vga_out8(0x3d4, index,  par);
 319        return vga_in8(0x3d5, par);
 320}
 321
 322static inline u8 VGArGR (u8 index, struct savagefb_par *par)
 323{
 324        vga_out8(0x3ce, index, par);
 325        return vga_in8(0x3cf, par);
 326}
 327
 328static inline u8 VGArSEQ (u8 index, struct savagefb_par *par)
 329{
 330        vga_out8(0x3c4, index, par);
 331        return vga_in8(0x3c5, par);
 332}
 333
 334static inline void VGAwCR(u8 index, u8 val, struct savagefb_par *par)
 335{
 336        vga_out8(0x3d4, index, par);
 337        vga_out8(0x3d5, val, par);
 338}
 339
 340static inline void VGAwGR(u8 index, u8 val, struct savagefb_par *par)
 341{
 342        vga_out8(0x3ce, index, par);
 343        vga_out8(0x3cf, val, par);
 344}
 345
 346static inline void VGAwSEQ(u8 index, u8 val, struct savagefb_par *par)
 347{
 348        vga_out8(0x3c4, index, par);
 349        vga_out8 (0x3c5, val, par);
 350}
 351
 352static inline void VGAenablePalette(struct savagefb_par *par)
 353{
 354        u8 tmp;
 355
 356        tmp = vga_in8(0x3da, par);
 357        vga_out8(0x3c0, 0x00, par);
 358        par->paletteEnabled = 1;
 359}
 360
 361static inline void VGAdisablePalette(struct savagefb_par *par)
 362{
 363        u8 tmp;
 364
 365        tmp = vga_in8(0x3da, par);
 366        vga_out8(0x3c0, 0x20, par);
 367        par->paletteEnabled = 0;
 368}
 369
 370static inline void VGAwATTR(u8 index, u8 value, struct savagefb_par *par)
 371{
 372        u8 tmp;
 373
 374        if (par->paletteEnabled)
 375                index &= ~0x20;
 376        else
 377                index |= 0x20;
 378
 379        tmp = vga_in8(0x3da, par);
 380        vga_out8(0x3c0, index, par);
 381        vga_out8 (0x3c0, value, par);
 382}
 383
 384static inline void VGAwMISC(u8 value, struct savagefb_par *par)
 385{
 386        vga_out8(0x3c2, value, par);
 387}
 388
 389#ifndef CONFIG_FB_SAVAGE_ACCEL
 390#define savagefb_set_clip(x)
 391#endif
 392
 393static inline void VerticalRetraceWait(struct savagefb_par *par)
 394{
 395        vga_out8(0x3d4, 0x17, par);
 396        if (vga_in8(0x3d5, par) & 0x80) {
 397                while ((vga_in8(0x3da, par) & 0x08) == 0x08);
 398                while ((vga_in8(0x3da, par) & 0x08) == 0x00);
 399        }
 400}
 401
 402extern int savagefb_probe_i2c_connector(struct fb_info *info,
 403                                        u8 **out_edid);
 404extern void savagefb_create_i2c_busses(struct fb_info *info);
 405extern void savagefb_delete_i2c_busses(struct fb_info *info);
 406extern int  savagefb_sync(struct fb_info *info);
 407extern void savagefb_copyarea(struct fb_info *info,
 408                              const struct fb_copyarea *region);
 409extern void savagefb_fillrect(struct fb_info *info,
 410                              const struct fb_fillrect *rect);
 411extern void savagefb_imageblit(struct fb_info *info,
 412                               const struct fb_image *image);
 413
 414
 415#endif /* __SAVAGEFB_H__ */
 416