1 #ifndef __RADEONFB_H__ 2 #define __RADEONFB_H__ 3 4 #ifdef CONFIG_FB_RADEON_DEBUG 5 #define DEBUG 1 6 #endif 7 8 #include <linux/module.h> 9 #include <linux/kernel.h> 10 #include <linux/sched.h> 11 #include <linux/delay.h> 12 #include <linux/pci.h> 13 #include <linux/fb.h> 14 15 16 #ifdef CONFIG_FB_RADEON_I2C 17 #include <linux/i2c.h> 18 #include <linux/i2c-algo-bit.h> 19 #endif 20 21 #include <asm/io.h> 22 23 #if defined(CONFIG_PPC) || defined(CONFIG_SPARC) 24 #include <asm/prom.h> 25 #endif 26 27 #include <video/radeon.h> 28 29 /*************************************************************** 30 * Most of the definitions here are adapted right from XFree86 * 31 ***************************************************************/ 32 33 34 /* 35 * Chip families. Must fit in the low 16 bits of a long word 36 */ 37 enum radeon_family { 38 CHIP_FAMILY_UNKNOW, 39 CHIP_FAMILY_LEGACY, 40 CHIP_FAMILY_RADEON, 41 CHIP_FAMILY_RV100, 42 CHIP_FAMILY_RS100, /* U1 (IGP320M) or A3 (IGP320)*/ 43 CHIP_FAMILY_RV200, 44 CHIP_FAMILY_RS200, /* U2 (IGP330M/340M/350M) or A4 (IGP330/340/345/350), 45 RS250 (IGP 7000) */ 46 CHIP_FAMILY_R200, 47 CHIP_FAMILY_RV250, 48 CHIP_FAMILY_RS300, /* Radeon 9000 IGP */ 49 CHIP_FAMILY_RV280, 50 CHIP_FAMILY_R300, 51 CHIP_FAMILY_R350, 52 CHIP_FAMILY_RV350, 53 CHIP_FAMILY_RV380, /* RV370/RV380/M22/M24 */ 54 CHIP_FAMILY_R420, /* R420/R423/M18 */ 55 CHIP_FAMILY_RC410, 56 CHIP_FAMILY_RS400, 57 CHIP_FAMILY_RS480, 58 CHIP_FAMILY_LAST, 59 }; 60 61 #define IS_RV100_VARIANT(rinfo) (((rinfo)->family == CHIP_FAMILY_RV100) || \ 62 ((rinfo)->family == CHIP_FAMILY_RV200) || \ 63 ((rinfo)->family == CHIP_FAMILY_RS100) || \ 64 ((rinfo)->family == CHIP_FAMILY_RS200) || \ 65 ((rinfo)->family == CHIP_FAMILY_RV250) || \ 66 ((rinfo)->family == CHIP_FAMILY_RV280) || \ 67 ((rinfo)->family == CHIP_FAMILY_RS300)) 68 69 70 #define IS_R300_VARIANT(rinfo) (((rinfo)->family == CHIP_FAMILY_R300) || \ 71 ((rinfo)->family == CHIP_FAMILY_RV350) || \ 72 ((rinfo)->family == CHIP_FAMILY_R350) || \ 73 ((rinfo)->family == CHIP_FAMILY_RV380) || \ 74 ((rinfo)->family == CHIP_FAMILY_R420) || \ 75 ((rinfo)->family == CHIP_FAMILY_RC410) || \ 76 ((rinfo)->family == CHIP_FAMILY_RS480)) 77 78 /* 79 * Chip flags 80 */ 81 enum radeon_chip_flags { 82 CHIP_FAMILY_MASK = 0x0000ffffUL, 83 CHIP_FLAGS_MASK = 0xffff0000UL, 84 CHIP_IS_MOBILITY = 0x00010000UL, 85 CHIP_IS_IGP = 0x00020000UL, 86 CHIP_HAS_CRTC2 = 0x00040000UL, 87 }; 88 89 /* 90 * Errata workarounds 91 */ 92 enum radeon_errata { 93 CHIP_ERRATA_R300_CG = 0x00000001, 94 CHIP_ERRATA_PLL_DUMMYREADS = 0x00000002, 95 CHIP_ERRATA_PLL_DELAY = 0x00000004, 96 }; 97 98 99 /* 100 * Monitor types 101 */ 102 enum radeon_montype { 103 MT_NONE = 0, 104 MT_CRT, /* CRT */ 105 MT_LCD, /* LCD */ 106 MT_DFP, /* DVI */ 107 MT_CTV, /* composite TV */ 108 MT_STV /* S-Video out */ 109 }; 110 111 /* 112 * DDC i2c ports 113 */ 114 enum ddc_type { 115 ddc_none, 116 ddc_monid, 117 ddc_dvi, 118 ddc_vga, 119 ddc_crt2, 120 }; 121 122 /* 123 * Connector types 124 */ 125 enum conn_type { 126 conn_none, 127 conn_proprietary, 128 conn_crt, 129 conn_DVI_I, 130 conn_DVI_D, 131 }; 132 133 134 /* 135 * PLL infos 136 */ 137 struct pll_info { 138 int ppll_max; 139 int ppll_min; 140 int sclk, mclk; 141 int ref_div; 142 int ref_clk; 143 }; 144 145 146 /* 147 * This structure contains the various registers manipulated by this 148 * driver for setting or restoring a mode. It's mostly copied from 149 * XFree's RADEONSaveRec structure. A few chip settings might still be 150 * tweaked without beeing reflected or saved in these registers though 151 */ 152 struct radeon_regs { 153 /* Common registers */ 154 u32 ovr_clr; 155 u32 ovr_wid_left_right; 156 u32 ovr_wid_top_bottom; 157 u32 ov0_scale_cntl; 158 u32 mpp_tb_config; 159 u32 mpp_gp_config; 160 u32 subpic_cntl; 161 u32 viph_control; 162 u32 i2c_cntl_1; 163 u32 gen_int_cntl; 164 u32 cap0_trig_cntl; 165 u32 cap1_trig_cntl; 166 u32 bus_cntl; 167 u32 surface_cntl; 168 u32 bios_5_scratch; 169 170 /* Other registers to save for VT switches or driver load/unload */ 171 u32 dp_datatype; 172 u32 rbbm_soft_reset; 173 u32 clock_cntl_index; 174 u32 amcgpio_en_reg; 175 u32 amcgpio_mask; 176 177 /* Surface/tiling registers */ 178 u32 surf_lower_bound[8]; 179 u32 surf_upper_bound[8]; 180 u32 surf_info[8]; 181 182 /* CRTC registers */ 183 u32 crtc_gen_cntl; 184 u32 crtc_ext_cntl; 185 u32 dac_cntl; 186 u32 crtc_h_total_disp; 187 u32 crtc_h_sync_strt_wid; 188 u32 crtc_v_total_disp; 189 u32 crtc_v_sync_strt_wid; 190 u32 crtc_offset; 191 u32 crtc_offset_cntl; 192 u32 crtc_pitch; 193 u32 disp_merge_cntl; 194 u32 grph_buffer_cntl; 195 u32 crtc_more_cntl; 196 197 /* CRTC2 registers */ 198 u32 crtc2_gen_cntl; 199 u32 dac2_cntl; 200 u32 disp_output_cntl; 201 u32 disp_hw_debug; 202 u32 disp2_merge_cntl; 203 u32 grph2_buffer_cntl; 204 u32 crtc2_h_total_disp; 205 u32 crtc2_h_sync_strt_wid; 206 u32 crtc2_v_total_disp; 207 u32 crtc2_v_sync_strt_wid; 208 u32 crtc2_offset; 209 u32 crtc2_offset_cntl; 210 u32 crtc2_pitch; 211 212 /* Flat panel regs */ 213 u32 fp_crtc_h_total_disp; 214 u32 fp_crtc_v_total_disp; 215 u32 fp_gen_cntl; 216 u32 fp2_gen_cntl; 217 u32 fp_h_sync_strt_wid; 218 u32 fp2_h_sync_strt_wid; 219 u32 fp_horz_stretch; 220 u32 fp_panel_cntl; 221 u32 fp_v_sync_strt_wid; 222 u32 fp2_v_sync_strt_wid; 223 u32 fp_vert_stretch; 224 u32 lvds_gen_cntl; 225 u32 lvds_pll_cntl; 226 u32 tmds_crc; 227 u32 tmds_transmitter_cntl; 228 229 /* Computed values for PLL */ 230 u32 dot_clock_freq; 231 int feedback_div; 232 int post_div; 233 234 /* PLL registers */ 235 u32 ppll_div_3; 236 u32 ppll_ref_div; 237 u32 vclk_ecp_cntl; 238 u32 clk_cntl_index; 239 240 /* Computed values for PLL2 */ 241 u32 dot_clock_freq_2; 242 int feedback_div_2; 243 int post_div_2; 244 245 /* PLL2 registers */ 246 u32 p2pll_ref_div; 247 u32 p2pll_div_0; 248 u32 htotal_cntl2; 249 250 /* Palette */ 251 int palette_valid; 252 }; 253 254 struct panel_info { 255 int xres, yres; 256 int valid; 257 int clock; 258 int hOver_plus, hSync_width, hblank; 259 int vOver_plus, vSync_width, vblank; 260 int hAct_high, vAct_high, interlaced; 261 int pwr_delay; 262 int use_bios_dividers; 263 int ref_divider; 264 int post_divider; 265 int fbk_divider; 266 }; 267 268 struct radeonfb_info; 269 270 #ifdef CONFIG_FB_RADEON_I2C 271 struct radeon_i2c_chan { 272 struct radeonfb_info *rinfo; 273 u32 ddc_reg; 274 struct i2c_adapter adapter; 275 struct i2c_algo_bit_data algo; 276 }; 277 #endif 278 279 enum radeon_pm_mode { 280 radeon_pm_none = 0, /* Nothing supported */ 281 radeon_pm_d2 = 0x00000001, /* Can do D2 state */ 282 radeon_pm_off = 0x00000002, /* Can resume from D3 cold */ 283 }; 284 285 typedef void (*reinit_function_ptr)(struct radeonfb_info *rinfo); 286 287 struct radeonfb_info { 288 struct fb_info *info; 289 290 struct radeon_regs state; 291 struct radeon_regs init_state; 292 293 char name[50]; 294 295 unsigned long mmio_base_phys; 296 unsigned long fb_base_phys; 297 298 void __iomem *mmio_base; 299 void __iomem *fb_base; 300 301 unsigned long fb_local_base; 302 303 struct pci_dev *pdev; 304 #if defined(CONFIG_PPC) || defined(CONFIG_SPARC) 305 struct device_node *of_node; 306 #endif 307 308 void __iomem *bios_seg; 309 int fp_bios_start; 310 311 u32 pseudo_palette[16]; 312 struct { u8 red, green, blue, pad; } 313 palette[256]; 314 315 int chipset; 316 u8 family; 317 u8 rev; 318 unsigned int errata; 319 unsigned long video_ram; 320 unsigned long mapped_vram; 321 int vram_width; 322 int vram_ddr; 323 324 int pitch, bpp, depth; 325 326 int has_CRTC2; 327 int is_mobility; 328 int is_IGP; 329 int reversed_DAC; 330 int reversed_TMDS; 331 struct panel_info panel_info; 332 int mon1_type; 333 u8 *mon1_EDID; 334 struct fb_videomode *mon1_modedb; 335 int mon1_dbsize; 336 int mon2_type; 337 u8 *mon2_EDID; 338 339 u32 dp_gui_master_cntl; 340 341 struct pll_info pll; 342 343 int mtrr_hdl; 344 345 u32 save_regs[100]; 346 int asleep; 347 int lock_blank; 348 int dynclk; 349 int no_schedule; 350 enum radeon_pm_mode pm_mode; 351 reinit_function_ptr reinit_func; 352 353 /* Lock on register access */ 354 spinlock_t reg_lock; 355 356 /* Timer used for delayed LVDS operations */ 357 struct timer_list lvds_timer; 358 u32 pending_lvds_gen_cntl; 359 360 #ifdef CONFIG_FB_RADEON_I2C 361 struct radeon_i2c_chan i2c[4]; 362 #endif 363 }; 364 365 366 #define PRIMARY_MONITOR(rinfo) (rinfo->mon1_type) 367 368 369 /* 370 * IO macros 371 */ 372 373 /* Note about this function: we have some rare cases where we must not schedule, 374 * this typically happen with our special "wake up early" hook which allows us to 375 * wake up the graphic chip (and thus get the console back) before everything else 376 * on some machines that support that mechanism. At this point, interrupts are off 377 * and scheduling is not permitted 378 */ 379 static inline void _radeon_msleep(struct radeonfb_info *rinfo, unsigned long ms) 380 { 381 if (rinfo->no_schedule || oops_in_progress) 382 mdelay(ms); 383 else 384 msleep(ms); 385 } 386 387 388 #define INREG8(addr) readb((rinfo->mmio_base)+addr) 389 #define OUTREG8(addr,val) writeb(val, (rinfo->mmio_base)+addr) 390 #define INREG16(addr) readw((rinfo->mmio_base)+addr) 391 #define OUTREG16(addr,val) writew(val, (rinfo->mmio_base)+addr) 392 #define INREG(addr) readl((rinfo->mmio_base)+addr) 393 #define OUTREG(addr,val) writel(val, (rinfo->mmio_base)+addr) 394 395 static inline void _OUTREGP(struct radeonfb_info *rinfo, u32 addr, 396 u32 val, u32 mask) 397 { 398 unsigned long flags; 399 unsigned int tmp; 400 401 spin_lock_irqsave(&rinfo->reg_lock, flags); 402 tmp = INREG(addr); 403 tmp &= (mask); 404 tmp |= (val); 405 OUTREG(addr, tmp); 406 spin_unlock_irqrestore(&rinfo->reg_lock, flags); 407 } 408 409 #define OUTREGP(addr,val,mask) _OUTREGP(rinfo, addr, val,mask) 410 411 /* 412 * Note about PLL register accesses: 413 * 414 * I have removed the spinlock on them on purpose. The driver now 415 * expects that it will only manipulate the PLL registers in normal 416 * task environment, where radeon_msleep() will be called, protected 417 * by a semaphore (currently the console semaphore) so that no conflict 418 * will happen on the PLL register index. 419 * 420 * With the latest changes to the VT layer, this is guaranteed for all 421 * calls except the actual drawing/blits which aren't supposed to use 422 * the PLL registers anyway 423 * 424 * This is very important for the workarounds to work properly. The only 425 * possible exception to this rule is the call to unblank(), which may 426 * be done at irq time if an oops is in progress. 427 */ 428 static inline void radeon_pll_errata_after_index(struct radeonfb_info *rinfo) 429 { 430 if (!(rinfo->errata & CHIP_ERRATA_PLL_DUMMYREADS)) 431 return; 432 433 (void)INREG(CLOCK_CNTL_DATA); 434 (void)INREG(CRTC_GEN_CNTL); 435 } 436 437 static inline void radeon_pll_errata_after_data(struct radeonfb_info *rinfo) 438 { 439 if (rinfo->errata & CHIP_ERRATA_PLL_DELAY) { 440 /* we can't deal with posted writes here ... */ 441 _radeon_msleep(rinfo, 5); 442 } 443 if (rinfo->errata & CHIP_ERRATA_R300_CG) { 444 u32 save, tmp; 445 save = INREG(CLOCK_CNTL_INDEX); 446 tmp = save & ~(0x3f | PLL_WR_EN); 447 OUTREG(CLOCK_CNTL_INDEX, tmp); 448 tmp = INREG(CLOCK_CNTL_DATA); 449 OUTREG(CLOCK_CNTL_INDEX, save); 450 } 451 } 452 453 static inline u32 __INPLL(struct radeonfb_info *rinfo, u32 addr) 454 { 455 u32 data; 456 457 OUTREG8(CLOCK_CNTL_INDEX, addr & 0x0000003f); 458 radeon_pll_errata_after_index(rinfo); 459 data = INREG(CLOCK_CNTL_DATA); 460 radeon_pll_errata_after_data(rinfo); 461 return data; 462 } 463 464 static inline void __OUTPLL(struct radeonfb_info *rinfo, unsigned int index, 465 u32 val) 466 { 467 468 OUTREG8(CLOCK_CNTL_INDEX, (index & 0x0000003f) | 0x00000080); 469 radeon_pll_errata_after_index(rinfo); 470 OUTREG(CLOCK_CNTL_DATA, val); 471 radeon_pll_errata_after_data(rinfo); 472 } 473 474 475 static inline void __OUTPLLP(struct radeonfb_info *rinfo, unsigned int index, 476 u32 val, u32 mask) 477 { 478 unsigned int tmp; 479 480 tmp = __INPLL(rinfo, index); 481 tmp &= (mask); 482 tmp |= (val); 483 __OUTPLL(rinfo, index, tmp); 484 } 485 486 487 #define INPLL(addr) __INPLL(rinfo, addr) 488 #define OUTPLL(index, val) __OUTPLL(rinfo, index, val) 489 #define OUTPLLP(index, val, mask) __OUTPLLP(rinfo, index, val, mask) 490 491 492 #define BIOS_IN8(v) (readb(rinfo->bios_seg + (v))) 493 #define BIOS_IN16(v) (readb(rinfo->bios_seg + (v)) | \ 494 (readb(rinfo->bios_seg + (v) + 1) << 8)) 495 #define BIOS_IN32(v) (readb(rinfo->bios_seg + (v)) | \ 496 (readb(rinfo->bios_seg + (v) + 1) << 8) | \ 497 (readb(rinfo->bios_seg + (v) + 2) << 16) | \ 498 (readb(rinfo->bios_seg + (v) + 3) << 24)) 499 500 /* 501 * Inline utilities 502 */ 503 static inline int round_div(int num, int den) 504 { 505 return (num + (den / 2)) / den; 506 } 507 508 static inline int var_to_depth(const struct fb_var_screeninfo *var) 509 { 510 if (var->bits_per_pixel != 16) 511 return var->bits_per_pixel; 512 return (var->green.length == 5) ? 15 : 16; 513 } 514 515 static inline u32 radeon_get_dstbpp(u16 depth) 516 { 517 switch (depth) { 518 case 8: 519 return DST_8BPP; 520 case 15: 521 return DST_15BPP; 522 case 16: 523 return DST_16BPP; 524 case 32: 525 return DST_32BPP; 526 default: 527 return 0; 528 } 529 } 530 531 /* 532 * 2D Engine helper routines 533 */ 534 535 static inline void _radeon_fifo_wait(struct radeonfb_info *rinfo, int entries) 536 { 537 int i; 538 539 for (i=0; i<2000000; i++) { 540 if ((INREG(RBBM_STATUS) & 0x7f) >= entries) 541 return; 542 udelay(1); 543 } 544 printk(KERN_ERR "radeonfb: FIFO Timeout !\n"); 545 } 546 547 static inline void radeon_engine_flush (struct radeonfb_info *rinfo) 548 { 549 int i; 550 551 /* Initiate flush */ 552 OUTREGP(DSTCACHE_CTLSTAT, RB2D_DC_FLUSH_ALL, 553 ~RB2D_DC_FLUSH_ALL); 554 555 /* Ensure FIFO is empty, ie, make sure the flush commands 556 * has reached the cache 557 */ 558 _radeon_fifo_wait (rinfo, 64); 559 560 /* Wait for the flush to complete */ 561 for (i=0; i < 2000000; i++) { 562 if (!(INREG(DSTCACHE_CTLSTAT) & RB2D_DC_BUSY)) 563 return; 564 udelay(1); 565 } 566 printk(KERN_ERR "radeonfb: Flush Timeout !\n"); 567 } 568 569 570 static inline void _radeon_engine_idle(struct radeonfb_info *rinfo) 571 { 572 int i; 573 574 /* ensure FIFO is empty before waiting for idle */ 575 _radeon_fifo_wait (rinfo, 64); 576 577 for (i=0; i<2000000; i++) { 578 if (((INREG(RBBM_STATUS) & GUI_ACTIVE)) == 0) { 579 radeon_engine_flush (rinfo); 580 return; 581 } 582 udelay(1); 583 } 584 printk(KERN_ERR "radeonfb: Idle Timeout !\n"); 585 } 586 587 588 #define radeon_engine_idle() _radeon_engine_idle(rinfo) 589 #define radeon_fifo_wait(entries) _radeon_fifo_wait(rinfo,entries) 590 #define radeon_msleep(ms) _radeon_msleep(rinfo,ms) 591 592 593 /* I2C Functions */ 594 extern void radeon_create_i2c_busses(struct radeonfb_info *rinfo); 595 extern void radeon_delete_i2c_busses(struct radeonfb_info *rinfo); 596 extern int radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int conn, u8 **out_edid); 597 598 /* PM Functions */ 599 extern int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t state); 600 extern int radeonfb_pci_resume(struct pci_dev *pdev); 601 extern void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlist, int force_sleep); 602 extern void radeonfb_pm_exit(struct radeonfb_info *rinfo); 603 604 /* Monitor probe functions */ 605 extern void radeon_probe_screens(struct radeonfb_info *rinfo, 606 const char *monitor_layout, int ignore_edid); 607 extern void radeon_check_modes(struct radeonfb_info *rinfo, const char *mode_option); 608 extern int radeon_match_mode(struct radeonfb_info *rinfo, 609 struct fb_var_screeninfo *dest, 610 const struct fb_var_screeninfo *src); 611 612 /* Accel functions */ 613 extern void radeonfb_fillrect(struct fb_info *info, const struct fb_fillrect *region); 614 extern void radeonfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); 615 extern void radeonfb_imageblit(struct fb_info *p, const struct fb_image *image); 616 extern int radeonfb_sync(struct fb_info *info); 617 extern void radeonfb_engine_init (struct radeonfb_info *rinfo); 618 extern void radeonfb_engine_reset(struct radeonfb_info *rinfo); 619 620 /* Other functions */ 621 extern int radeon_screen_blank(struct radeonfb_info *rinfo, int blank, int mode_switch); 622 extern void radeon_write_mode (struct radeonfb_info *rinfo, struct radeon_regs *mode, 623 int reg_only); 624 625 /* Backlight functions */ 626 #ifdef CONFIG_FB_RADEON_BACKLIGHT 627 extern void radeonfb_bl_init(struct radeonfb_info *rinfo); 628 extern void radeonfb_bl_exit(struct radeonfb_info *rinfo); 629 #else 630 static inline void radeonfb_bl_init(struct radeonfb_info *rinfo) {} 631 static inline void radeonfb_bl_exit(struct radeonfb_info *rinfo) {} 632 #endif 633 634 #endif /* __RADEONFB_H__ */ 635