drivers/video/aty/radeonfb.h

   1 #ifndef __RADEONFB_H__
   2 #define __RADEONFB_H__
   3
   4 #include <linux/module.h>
   5 #include <linux/kernel.h>
   6 #include <linux/sched.h>
   7 #include <linux/delay.h>
   8 #include <linux/pci.h>
   9 #include <linux/fb.h>
  10
  11
  12 #ifdef CONFIG_FB_RADEON_I2C
  13 #include <linux/i2c.h>
  14 #include <linux/i2c-algo-bit.h>
  15 #endif
  16
  17 #include <asm/io.h>
  18
  19 #ifdef CONFIG_PPC_OF
  20 #include <asm/prom.h>
  21 #endif
  22
  23 #include <video/radeon.h>
  24
  25 /***************************************************************
  26  * Most of the definitions here are adapted right from XFree86 *
  27  ***************************************************************/
  28
  29
  30 /*
  31  * Chip families. Must fit in the low 16 bits of a long word
  32  */
  33 enum radeon_family {
  34         CHIP_FAMILY_UNKNOW,
  35         CHIP_FAMILY_LEGACY,
  36         CHIP_FAMILY_RADEON,
  37         CHIP_FAMILY_RV100,
  38         CHIP_FAMILY_RS100,    /* U1 (IGP320M) or A3 (IGP320)*/
  39         CHIP_FAMILY_RV200,
  40         CHIP_FAMILY_RS200,    /* U2 (IGP330M/340M/350M) or A4 (IGP330/340/345/350),
  41                                  RS250 (IGP 7000) */
  42         CHIP_FAMILY_R200,
  43         CHIP_FAMILY_RV250,
  44         CHIP_FAMILY_RS300,    /* Radeon 9000 IGP */
  45         CHIP_FAMILY_RV280,
  46         CHIP_FAMILY_R300,
  47         CHIP_FAMILY_R350,
  48         CHIP_FAMILY_RV350,
  49         CHIP_FAMILY_RV380,    /* RV370/RV380/M22/M24 */
  50         CHIP_FAMILY_R420,     /* R420/R423/M18 */
  51         CHIP_FAMILY_LAST,
  52 };
  53
  54 #define IS_RV100_VARIANT(rinfo) (((rinfo)->family == CHIP_FAMILY_RV100)  || \
  55                                  ((rinfo)->family == CHIP_FAMILY_RV200)  || \
  56                                  ((rinfo)->family == CHIP_FAMILY_RS100)  || \
  57                                  ((rinfo)->family == CHIP_FAMILY_RS200)  || \
  58                                  ((rinfo)->family == CHIP_FAMILY_RV250)  || \
  59                                  ((rinfo)->family == CHIP_FAMILY_RV280)  || \
  60                                  ((rinfo)->family == CHIP_FAMILY_RS300))
  61
  62
  63 #define IS_R300_VARIANT(rinfo) (((rinfo)->family == CHIP_FAMILY_R300)  || \
  64                                 ((rinfo)->family == CHIP_FAMILY_RV350) || \
  65                                 ((rinfo)->family == CHIP_FAMILY_R350)  || \
  66                                 ((rinfo)->family == CHIP_FAMILY_RV380) || \
  67                                 ((rinfo)->family == CHIP_FAMILY_R420))
  68
  69 /*
  70  * Chip flags
  71  */
  72 enum radeon_chip_flags {
  73         CHIP_FAMILY_MASK        = 0x0000ffffUL,
  74         CHIP_FLAGS_MASK         = 0xffff0000UL,
  75         CHIP_IS_MOBILITY        = 0x00010000UL,
  76         CHIP_IS_IGP             = 0x00020000UL,
  77         CHIP_HAS_CRTC2          = 0x00040000UL,
  78 };
  79
  80 /*
  81  * Errata workarounds
  82  */
  83 enum radeon_errata {
  84         CHIP_ERRATA_R300_CG             = 0x00000001,
  85         CHIP_ERRATA_PLL_DUMMYREADS      = 0x00000002,
  86         CHIP_ERRATA_PLL_DELAY           = 0x00000004,
  87 };
  88
  89
  90 /*
  91  * Monitor types
  92  */
  93 enum radeon_montype {
  94         MT_NONE = 0,
  95         MT_CRT,         /* CRT */
  96         MT_LCD,         /* LCD */
  97         MT_DFP,         /* DVI */
  98         MT_CTV,         /* composite TV */
  99         MT_STV          /* S-Video out */
 100 };
 101
 102 /*
 103  * DDC i2c ports
 104  */
 105 enum ddc_type {
 106         ddc_none,
 107         ddc_monid,
 108         ddc_dvi,
 109         ddc_vga,
 110         ddc_crt2,
 111 };
 112
 113 /*
 114  * Connector types
 115  */
 116 enum conn_type {
 117         conn_none,
 118         conn_proprietary,
 119         conn_crt,
 120         conn_DVI_I,
 121         conn_DVI_D,
 122 };
 123
 124
 125 /*
 126  * PLL infos
 127  */
 128 struct pll_info {
 129         int ppll_max;
 130         int ppll_min;
 131         int sclk, mclk;
 132         int ref_div;
 133         int ref_clk;
 134 };
 135
 136
 137 /*
 138  * This structure contains the various registers manipulated by this
 139  * driver for setting or restoring a mode. It's mostly copied from
 140  * XFree's RADEONSaveRec structure. A few chip settings might still be
 141  * tweaked without beeing reflected or saved in these registers though
 142  */
 143 struct radeon_regs {
 144         /* Common registers */
 145         u32             ovr_clr;
 146         u32             ovr_wid_left_right;
 147         u32             ovr_wid_top_bottom;
 148         u32             ov0_scale_cntl;
 149         u32             mpp_tb_config;
 150         u32             mpp_gp_config;
 151         u32             subpic_cntl;
 152         u32             viph_control;
 153         u32             i2c_cntl_1;
 154         u32             gen_int_cntl;
 155         u32             cap0_trig_cntl;
 156         u32             cap1_trig_cntl;
 157         u32             bus_cntl;
 158         u32             surface_cntl;
 159         u32             bios_5_scratch;
 160
 161         /* Other registers to save for VT switches or driver load/unload */
 162         u32             dp_datatype;
 163         u32             rbbm_soft_reset;
 164         u32             clock_cntl_index;
 165         u32             amcgpio_en_reg;
 166         u32             amcgpio_mask;
 167
 168         /* Surface/tiling registers */
 169         u32             surf_lower_bound[8];
 170         u32             surf_upper_bound[8];
 171         u32             surf_info[8];
 172
 173         /* CRTC registers */
 174         u32             crtc_gen_cntl;
 175         u32             crtc_ext_cntl;
 176         u32             dac_cntl;
 177         u32             crtc_h_total_disp;
 178         u32             crtc_h_sync_strt_wid;
 179         u32             crtc_v_total_disp;
 180         u32             crtc_v_sync_strt_wid;
 181         u32             crtc_offset;
 182         u32             crtc_offset_cntl;
 183         u32             crtc_pitch;
 184         u32             disp_merge_cntl;
 185         u32             grph_buffer_cntl;
 186         u32             crtc_more_cntl;
 187
 188         /* CRTC2 registers */
 189         u32             crtc2_gen_cntl;
 190         u32             dac2_cntl;
 191         u32             disp_output_cntl;
 192         u32             disp_hw_debug;
 193         u32             disp2_merge_cntl;
 194         u32             grph2_buffer_cntl;
 195         u32             crtc2_h_total_disp;
 196         u32             crtc2_h_sync_strt_wid;
 197         u32             crtc2_v_total_disp;
 198         u32             crtc2_v_sync_strt_wid;
 199         u32             crtc2_offset;
 200         u32             crtc2_offset_cntl;
 201         u32             crtc2_pitch;
 202
 203         /* Flat panel regs */
 204         u32             fp_crtc_h_total_disp;
 205         u32             fp_crtc_v_total_disp;
 206         u32             fp_gen_cntl;
 207         u32             fp2_gen_cntl;
 208         u32             fp_h_sync_strt_wid;
 209         u32             fp2_h_sync_strt_wid;
 210         u32             fp_horz_stretch;
 211         u32             fp_panel_cntl;
 212         u32             fp_v_sync_strt_wid;
 213         u32             fp2_v_sync_strt_wid;
 214         u32             fp_vert_stretch;
 215         u32             lvds_gen_cntl;
 216         u32             lvds_pll_cntl;
 217         u32             tmds_crc;
 218         u32             tmds_transmitter_cntl;
 219
 220         /* Computed values for PLL */
 221         u32             dot_clock_freq;
 222         int             feedback_div;
 223         int             post_div;
 224
 225         /* PLL registers */
 226         u32             ppll_div_3;
 227         u32             ppll_ref_div;
 228         u32             vclk_ecp_cntl;
 229         u32             clk_cntl_index;
 230
 231         /* Computed values for PLL2 */
 232         u32             dot_clock_freq_2;
 233         int             feedback_div_2;
 234         int             post_div_2;
 235
 236         /* PLL2 registers */
 237         u32             p2pll_ref_div;
 238         u32             p2pll_div_0;
 239         u32             htotal_cntl2;
 240
 241         /* Palette */
 242         int             palette_valid;
 243 };
 244
 245 struct panel_info {
 246         int xres, yres;
 247         int valid;
 248         int clock;
 249         int hOver_plus, hSync_width, hblank;
 250         int vOver_plus, vSync_width, vblank;
 251         int hAct_high, vAct_high, interlaced;
 252         int pwr_delay;
 253         int use_bios_dividers;
 254         int ref_divider;
 255         int post_divider;
 256         int fbk_divider;
 257 };
 258
 259 struct radeonfb_info;
 260
 261 #ifdef CONFIG_FB_RADEON_I2C
 262 struct radeon_i2c_chan {
 263         struct radeonfb_info            *rinfo;
 264         u32                             ddc_reg;
 265         struct i2c_adapter              adapter;
 266         struct i2c_algo_bit_data        algo;
 267 };
 268 #endif
 269
 270 enum radeon_pm_mode {
 271         radeon_pm_none  = 0,            /* Nothing supported */
 272         radeon_pm_d2    = 0x00000001,   /* Can do D2 state */
 273         radeon_pm_off   = 0x00000002,   /* Can resume from D3 cold */
 274 };
 275
 276 typedef void (*reinit_function_ptr)(struct radeonfb_info *rinfo);
 277
 278 struct radeonfb_info {
 279         struct fb_info          *info;
 280
 281         struct radeon_regs      state;
 282         struct radeon_regs      init_state;
 283
 284         char                    name[DEVICE_NAME_SIZE];
 285
 286         unsigned long           mmio_base_phys;
 287         unsigned long           fb_base_phys;
 288
 289         void __iomem            *mmio_base;
 290         void __iomem            *fb_base;
 291
 292         unsigned long           fb_local_base;
 293
 294         struct pci_dev          *pdev;
 295 #ifdef CONFIG_PPC_OF
 296         struct device_node      *of_node;
 297 #endif
 298
 299         void __iomem            *bios_seg;
 300         int                     fp_bios_start;
 301
 302         u32                     pseudo_palette[17];
 303         struct { u8 red, green, blue, pad; }
 304                                 palette[256];
 305
 306         int                     chipset;
 307         u8                      family;
 308         u8                      rev;
 309         unsigned int            errata;
 310         unsigned long           video_ram;
 311         unsigned long           mapped_vram;
 312         int                     vram_width;
 313         int                     vram_ddr;
 314
 315         int                     pitch, bpp, depth;
 316
 317         int                     has_CRTC2;
 318         int                     is_mobility;
 319         int                     is_IGP;
 320         int                     reversed_DAC;
 321         int                     reversed_TMDS;
 322         struct panel_info       panel_info;
 323         int                     mon1_type;
 324         u8                      *mon1_EDID;
 325         struct fb_videomode     *mon1_modedb;
 326         int                     mon1_dbsize;
 327         int                     mon2_type;
 328         u8                      *mon2_EDID;
 329
 330         u32                     dp_gui_master_cntl;
 331
 332         struct pll_info         pll;
 333
 334         int                     mtrr_hdl;
 335
 336         int                     pm_reg;
 337         u32                     save_regs[100];
 338         int                     asleep;
 339         int                     lock_blank;
 340         int                     dynclk;
 341         int                     no_schedule;
 342         enum radeon_pm_mode     pm_mode;
 343         reinit_function_ptr     reinit_func;
 344
 345         /* Lock on register access */
 346         spinlock_t              reg_lock;
 347
 348         /* Timer used for delayed LVDS operations */
 349         struct timer_list       lvds_timer;
 350         u32                     pending_lvds_gen_cntl;
 351
 352 #ifdef CONFIG_FB_RADEON_I2C
 353         struct radeon_i2c_chan  i2c[4];
 354 #endif
 355
 356         u32                     cfg_save[64];
 357 };
 358
 359
 360 #define PRIMARY_MONITOR(rinfo)  (rinfo->mon1_type)
 361
 362
 363 /*
 364  * Debugging stuffs
 365  */
 366 #ifdef CONFIG_FB_RADEON_DEBUG
 367 #define DEBUG           1
 368 #else
 369 #define DEBUG           0
 370 #endif
 371
 372 #if DEBUG
 373 #define RTRACE          printk
 374 #else
 375 #define RTRACE          if(0) printk
 376 #endif
 377
 378
 379 /*
 380  * IO macros
 381  */
 382
 383 /* Note about this function: we have some rare cases where we must not schedule,
 384  * this typically happen with our special "wake up early" hook which allows us to
 385  * wake up the graphic chip (and thus get the console back) before everything else
 386  * on some machines that support that mechanism. At this point, interrupts are off
 387  * and scheduling is not permitted
 388  */
 389 static inline void _radeon_msleep(struct radeonfb_info *rinfo, unsigned long ms)
 390 {
 391         if (rinfo->no_schedule || oops_in_progress)
 392                 mdelay(ms);
 393         else
 394                 msleep(ms);
 395 }
 396
 397
 398 #define INREG8(addr)            readb((rinfo->mmio_base)+addr)
 399 #define OUTREG8(addr,val)       writeb(val, (rinfo->mmio_base)+addr)
 400 #define INREG16(addr)           readw((rinfo->mmio_base)+addr)
 401 #define OUTREG16(addr,val)      writew(val, (rinfo->mmio_base)+addr)
 402 #define INREG(addr)             readl((rinfo->mmio_base)+addr)
 403 #define OUTREG(addr,val)        writel(val, (rinfo->mmio_base)+addr)
 404
 405 static inline void _OUTREGP(struct radeonfb_info *rinfo, u32 addr,
 406                        u32 val, u32 mask)
 407 {
 408         unsigned long flags;
 409         unsigned int tmp;
 410
 411         spin_lock_irqsave(&rinfo->reg_lock, flags);
 412         tmp = INREG(addr);
 413         tmp &= (mask);
 414         tmp |= (val);
 415         OUTREG(addr, tmp);
 416         spin_unlock_irqrestore(&rinfo->reg_lock, flags);
 417 }
 418
 419 #define OUTREGP(addr,val,mask)  _OUTREGP(rinfo, addr, val,mask)
 420
 421 /*
 422  * Note about PLL register accesses:
 423  *
 424  * I have removed the spinlock on them on purpose. The driver now
 425  * expects that it will only manipulate the PLL registers in normal
 426  * task environment, where radeon_msleep() will be called, protected
 427  * by a semaphore (currently the console semaphore) so that no conflict
 428  * will happen on the PLL register index.
 429  *
 430  * With the latest changes to the VT layer, this is guaranteed for all
 431  * calls except the actual drawing/blits which aren't supposed to use
 432  * the PLL registers anyway
 433  *
 434  * This is very important for the workarounds to work properly. The only
 435  * possible exception to this rule is the call to unblank(), which may
 436  * be done at irq time if an oops is in progress.
 437  */
 438 static inline void radeon_pll_errata_after_index(struct radeonfb_info *rinfo)
 439 {
 440         if (!(rinfo->errata & CHIP_ERRATA_PLL_DUMMYREADS))
 441                 return;
 442
 443         (void)INREG(CLOCK_CNTL_DATA);
 444         (void)INREG(CRTC_GEN_CNTL);
 445 }
 446
 447 static inline void radeon_pll_errata_after_data(struct radeonfb_info *rinfo)
 448 {
 449         if (rinfo->errata & CHIP_ERRATA_PLL_DELAY) {
 450                 /* we can't deal with posted writes here ... */
 451                 _radeon_msleep(rinfo, 5);
 452         }
 453         if (rinfo->errata & CHIP_ERRATA_R300_CG) {
 454                 u32 save, tmp;
 455                 save = INREG(CLOCK_CNTL_INDEX);
 456                 tmp = save & ~(0x3f | PLL_WR_EN);
 457                 OUTREG(CLOCK_CNTL_INDEX, tmp);
 458                 tmp = INREG(CLOCK_CNTL_DATA);
 459                 OUTREG(CLOCK_CNTL_INDEX, save);
 460         }
 461 }
 462
 463 static inline u32 __INPLL(struct radeonfb_info *rinfo, u32 addr)
 464 {
 465         u32 data;
 466
 467         OUTREG8(CLOCK_CNTL_INDEX, addr & 0x0000003f);
 468         radeon_pll_errata_after_index(rinfo);
 469         data = INREG(CLOCK_CNTL_DATA);
 470         radeon_pll_errata_after_data(rinfo);
 471         return data;
 472 }
 473
 474 static inline void __OUTPLL(struct radeonfb_info *rinfo, unsigned int index,
 475                             u32 val)
 476 {
 477
 478         OUTREG8(CLOCK_CNTL_INDEX, (index & 0x0000003f) | 0x00000080);
 479         radeon_pll_errata_after_index(rinfo);
 480         OUTREG(CLOCK_CNTL_DATA, val);
 481         radeon_pll_errata_after_data(rinfo);
 482 }
 483
 484
 485 static inline void __OUTPLLP(struct radeonfb_info *rinfo, unsigned int index,
 486                              u32 val, u32 mask)
 487 {
 488         unsigned int tmp;
 489
 490         tmp  = __INPLL(rinfo, index);
 491         tmp &= (mask);
 492         tmp |= (val);
 493         __OUTPLL(rinfo, index, tmp);
 494 }
 495
 496
 497 #define INPLL(addr)                     __INPLL(rinfo, addr)
 498 #define OUTPLL(index, val)              __OUTPLL(rinfo, index, val)
 499 #define OUTPLLP(index, val, mask)       __OUTPLLP(rinfo, index, val, mask)
 500
 501
 502 #define BIOS_IN8(v)     (readb(rinfo->bios_seg + (v)))
 503 #define BIOS_IN16(v)    (readb(rinfo->bios_seg + (v)) | \
 504                           (readb(rinfo->bios_seg + (v) + 1) << 8))
 505 #define BIOS_IN32(v)    (readb(rinfo->bios_seg + (v)) | \
 506                           (readb(rinfo->bios_seg + (v) + 1) << 8) | \
 507                           (readb(rinfo->bios_seg + (v) + 2) << 16) | \
 508                           (readb(rinfo->bios_seg + (v) + 3) << 24))
 509
 510 /*
 511  * Inline utilities
 512  */
 513 static inline int round_div(int num, int den)
 514 {
 515         return (num + (den / 2)) / den;
 516 }
 517
 518 static inline int var_to_depth(const struct fb_var_screeninfo *var)
 519 {
 520         if (var->bits_per_pixel != 16)
 521                 return var->bits_per_pixel;
 522         return (var->green.length == 5) ? 15 : 16;
 523 }
 524
 525 static inline u32 radeon_get_dstbpp(u16 depth)
 526 {
 527         switch (depth) {
 528         case 8:
 529                 return DST_8BPP;
 530         case 15:
 531                 return DST_15BPP;
 532         case 16:
 533                 return DST_16BPP;
 534         case 32:
 535                 return DST_32BPP;
 536         default:
 537                 return 0;
 538         }
 539 }
 540
 541 /*
 542  * 2D Engine helper routines
 543  */
 544 static inline void radeon_engine_flush (struct radeonfb_info *rinfo)
 545 {
 546         int i;
 547
 548         /* initiate flush */
 549         OUTREGP(RB2D_DSTCACHE_CTLSTAT, RB2D_DC_FLUSH_ALL,
 550                 ~RB2D_DC_FLUSH_ALL);
 551
 552         for (i=0; i < 2000000; i++) {
 553                 if (!(INREG(RB2D_DSTCACHE_CTLSTAT) & RB2D_DC_BUSY))
 554                         return;
 555                 udelay(1);
 556         }
 557         printk(KERN_ERR "radeonfb: Flush Timeout !\n");
 558 }
 559
 560
 561 static inline void _radeon_fifo_wait(struct radeonfb_info *rinfo, int entries)
 562 {
 563         int i;
 564
 565         for (i=0; i<2000000; i++) {
 566                 if ((INREG(RBBM_STATUS) & 0x7f) >= entries)
 567                         return;
 568                 udelay(1);
 569         }
 570         printk(KERN_ERR "radeonfb: FIFO Timeout !\n");
 571 }
 572
 573
 574 static inline void _radeon_engine_idle(struct radeonfb_info *rinfo)
 575 {
 576         int i;
 577
 578         /* ensure FIFO is empty before waiting for idle */
 579         _radeon_fifo_wait (rinfo, 64);
 580
 581         for (i=0; i<2000000; i++) {
 582                 if (((INREG(RBBM_STATUS) & GUI_ACTIVE)) == 0) {
 583                         radeon_engine_flush (rinfo);
 584                         return;
 585                 }
 586                 udelay(1);
 587         }
 588         printk(KERN_ERR "radeonfb: Idle Timeout !\n");
 589 }
 590
 591
 592 #define radeon_engine_idle()            _radeon_engine_idle(rinfo)
 593 #define radeon_fifo_wait(entries)       _radeon_fifo_wait(rinfo,entries)
 594 #define radeon_msleep(ms)               _radeon_msleep(rinfo,ms)
 595
 596
 597 /* I2C Functions */
 598 extern void radeon_create_i2c_busses(struct radeonfb_info *rinfo);
 599 extern void radeon_delete_i2c_busses(struct radeonfb_info *rinfo);
 600 extern int radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int conn, u8 **out_edid);
 601
 602 /* PM Functions */
 603 extern int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 604 extern int radeonfb_pci_resume(struct pci_dev *pdev);
 605 extern void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlist, int force_sleep);
 606 extern void radeonfb_pm_exit(struct radeonfb_info *rinfo);
 607
 608 /* Monitor probe functions */
 609 extern void radeon_probe_screens(struct radeonfb_info *rinfo,
 610                                  const char *monitor_layout, int ignore_edid);
 611 extern void radeon_check_modes(struct radeonfb_info *rinfo, const char *mode_option);
 612 extern int radeon_match_mode(struct radeonfb_info *rinfo,
 613                              struct fb_var_screeninfo *dest,
 614                              const struct fb_var_screeninfo *src);
 615
 616 /* Accel functions */
 617 extern void radeonfb_fillrect(struct fb_info *info, const struct fb_fillrect *region);
 618 extern void radeonfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 619 extern void radeonfb_imageblit(struct fb_info *p, const struct fb_image *image);
 620 extern int radeonfb_sync(struct fb_info *info);
 621 extern void radeonfb_engine_init (struct radeonfb_info *rinfo);
 622 extern void radeonfb_engine_reset(struct radeonfb_info *rinfo);
 623
 624 /* Other functions */
 625 extern int radeon_screen_blank(struct radeonfb_info *rinfo, int blank, int mode_switch);
 626 extern void radeon_write_mode (struct radeonfb_info *rinfo, struct radeon_regs *mode,
 627                                int reg_only);
 628
 629 /* Backlight functions */
 630 #ifdef CONFIG_FB_RADEON_BACKLIGHT
 631 extern void radeonfb_bl_init(struct radeonfb_info *rinfo);
 632 extern void radeonfb_bl_exit(struct radeonfb_info *rinfo);
 633 #else
 634 static inline void radeonfb_bl_init(struct radeonfb_info *rinfo) {}
 635 static inline void radeonfb_bl_exit(struct radeonfb_info *rinfo) {}
 636 #endif
 637
 638 #endif /* __RADEONFB_H__ */