1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/kernel.h> 3 #include <linux/module.h> 4 #include <linux/errno.h> 5 #include <linux/string.h> 6 #include <linux/mm.h> 7 #include <linux/slab.h> 8 #include <linux/delay.h> 9 #include <linux/fb.h> 10 #include <linux/ioport.h> 11 #include <linux/init.h> 12 #include <linux/pci.h> 13 #include <linux/mm_types.h> 14 #include <linux/vmalloc.h> 15 #include <linux/pagemap.h> 16 #include <linux/screen_info.h> 17 #include <linux/console.h> 18 #include <asm/fb.h> 19 #include "sm750.h" 20 #include "sm750_accel.h" 21 #include "sm750_cursor.h" 22 23 /* 24 * #ifdef __BIG_ENDIAN 25 * ssize_t lynxfb_ops_write(struct fb_info *info, const char __user *buf, 26 * size_t count, loff_t *ppos); 27 * ssize_t lynxfb_ops_read(struct fb_info *info, char __user *buf, 28 * size_t count, loff_t *ppos); 29 * #endif 30 */ 31 32 /* common var for all device */ 33 static int g_hwcursor = 1; 34 static int g_noaccel; 35 static int g_nomtrr; 36 static const char *g_fbmode[] = {NULL, NULL}; 37 static const char *g_def_fbmode = "1024x768-32@60"; 38 static char *g_settings; 39 static int g_dualview; 40 static char *g_option; 41 42 static const struct fb_videomode lynx750_ext[] = { 43 /* 1024x600-60 VESA [1.71:1] */ 44 {NULL, 60, 1024, 600, 20423, 144, 40, 18, 1, 104, 3, 45 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 46 FB_VMODE_NONINTERLACED}, 47 48 /* 1024x600-70 VESA */ 49 {NULL, 70, 1024, 600, 17211, 152, 48, 21, 1, 104, 3, 50 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 51 FB_VMODE_NONINTERLACED}, 52 53 /* 1024x600-75 VESA */ 54 {NULL, 75, 1024, 600, 15822, 160, 56, 23, 1, 104, 3, 55 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 56 FB_VMODE_NONINTERLACED}, 57 58 /* 1024x600-85 VESA */ 59 {NULL, 85, 1024, 600, 13730, 168, 56, 26, 1, 112, 3, 60 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 61 FB_VMODE_NONINTERLACED}, 62 63 /* 720x480 */ 64 {NULL, 60, 720, 480, 37427, 88, 16, 13, 1, 72, 3, 65 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 66 FB_VMODE_NONINTERLACED}, 67 68 /* 1280x720 [1.78:1] */ 69 {NULL, 60, 1280, 720, 13426, 162, 86, 22, 1, 136, 3, 70 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 71 FB_VMODE_NONINTERLACED}, 72 73 /* 1280x768@60 */ 74 {NULL, 60, 1280, 768, 12579, 192, 64, 20, 3, 128, 7, 75 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 76 FB_VMODE_NONINTERLACED}, 77 78 /* 1360 x 768 [1.77083:1] */ 79 {NULL, 60, 1360, 768, 11804, 208, 64, 23, 1, 144, 3, 80 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 81 FB_VMODE_NONINTERLACED}, 82 83 /* 1368 x 768 [1.78:1] */ 84 {NULL, 60, 1368, 768, 11647, 216, 72, 23, 1, 144, 3, 85 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 86 FB_VMODE_NONINTERLACED}, 87 88 /* 1440 x 900 [16:10] */ 89 {NULL, 60, 1440, 900, 9392, 232, 80, 28, 1, 152, 3, 90 FB_SYNC_VERT_HIGH_ACT, 91 FB_VMODE_NONINTERLACED}, 92 93 /* 1440x960 [15:10] */ 94 {NULL, 60, 1440, 960, 8733, 240, 88, 30, 1, 152, 3, 95 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 96 FB_VMODE_NONINTERLACED}, 97 98 /* 1920x1080 [16:9] */ 99 {NULL, 60, 1920, 1080, 6734, 148, 88, 41, 1, 44, 3, 100 FB_SYNC_VERT_HIGH_ACT, 101 FB_VMODE_NONINTERLACED}, 102 }; 103 104 /* no hardware cursor supported under version 2.6.10, kernel bug */ 105 static int lynxfb_ops_cursor(struct fb_info *info, struct fb_cursor *fbcursor) 106 { 107 struct lynxfb_par *par; 108 struct lynxfb_crtc *crtc; 109 struct lynx_cursor *cursor; 110 111 par = info->par; 112 crtc = &par->crtc; 113 cursor = &crtc->cursor; 114 115 if (fbcursor->image.width > cursor->max_w || 116 fbcursor->image.height > cursor->max_h || 117 fbcursor->image.depth > 1) { 118 return -ENXIO; 119 } 120 121 sm750_hw_cursor_disable(cursor); 122 if (fbcursor->set & FB_CUR_SETSIZE) 123 sm750_hw_cursor_setSize(cursor, 124 fbcursor->image.width, 125 fbcursor->image.height); 126 127 if (fbcursor->set & FB_CUR_SETPOS) 128 sm750_hw_cursor_setPos(cursor, 129 fbcursor->image.dx - info->var.xoffset, 130 fbcursor->image.dy - info->var.yoffset); 131 132 if (fbcursor->set & FB_CUR_SETCMAP) { 133 /* get the 16bit color of kernel means */ 134 u16 fg, bg; 135 136 fg = ((info->cmap.red[fbcursor->image.fg_color] & 0xf800)) | 137 ((info->cmap.green[fbcursor->image.fg_color] & 0xfc00) >> 5) | 138 ((info->cmap.blue[fbcursor->image.fg_color] & 0xf800) >> 11); 139 140 bg = ((info->cmap.red[fbcursor->image.bg_color] & 0xf800)) | 141 ((info->cmap.green[fbcursor->image.bg_color] & 0xfc00) >> 5) | 142 ((info->cmap.blue[fbcursor->image.bg_color] & 0xf800) >> 11); 143 144 sm750_hw_cursor_setColor(cursor, fg, bg); 145 } 146 147 if (fbcursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 148 sm750_hw_cursor_setData(cursor, 149 fbcursor->rop, 150 fbcursor->image.data, 151 fbcursor->mask); 152 } 153 154 if (fbcursor->enable) 155 sm750_hw_cursor_enable(cursor); 156 157 return 0; 158 } 159 160 static void lynxfb_ops_fillrect(struct fb_info *info, 161 const struct fb_fillrect *region) 162 { 163 struct lynxfb_par *par; 164 struct sm750_dev *sm750_dev; 165 unsigned int base, pitch, Bpp, rop; 166 u32 color; 167 168 if (info->state != FBINFO_STATE_RUNNING) 169 return; 170 171 par = info->par; 172 sm750_dev = par->dev; 173 174 /* 175 * each time 2d function begin to work,below three variable always need 176 * be set, seems we can put them together in some place 177 */ 178 base = par->crtc.o_screen; 179 pitch = info->fix.line_length; 180 Bpp = info->var.bits_per_pixel >> 3; 181 182 color = (Bpp == 1) ? region->color : 183 ((u32 *)info->pseudo_palette)[region->color]; 184 rop = (region->rop != ROP_COPY) ? HW_ROP2_XOR : HW_ROP2_COPY; 185 186 /* 187 * If not use spin_lock, system will die if user load driver 188 * and immediately unload driver frequently (dual) 189 * since they fb_count could change during the lifetime of 190 * this lock, we are holding it for all cases. 191 */ 192 spin_lock(&sm750_dev->slock); 193 194 sm750_dev->accel.de_fillrect(&sm750_dev->accel, 195 base, pitch, Bpp, 196 region->dx, region->dy, 197 region->width, region->height, 198 color, rop); 199 spin_unlock(&sm750_dev->slock); 200 } 201 202 static void lynxfb_ops_copyarea(struct fb_info *info, 203 const struct fb_copyarea *region) 204 { 205 struct lynxfb_par *par; 206 struct sm750_dev *sm750_dev; 207 unsigned int base, pitch, Bpp; 208 209 par = info->par; 210 sm750_dev = par->dev; 211 212 /* 213 * each time 2d function begin to work,below three variable always need 214 * be set, seems we can put them together in some place 215 */ 216 base = par->crtc.o_screen; 217 pitch = info->fix.line_length; 218 Bpp = info->var.bits_per_pixel >> 3; 219 220 /* 221 * If not use spin_lock, system will die if user load driver 222 * and immediately unload driver frequently (dual) 223 * since they fb_count could change during the lifetime of 224 * this lock, we are holding it for all cases. 225 */ 226 spin_lock(&sm750_dev->slock); 227 228 sm750_dev->accel.de_copyarea(&sm750_dev->accel, 229 base, pitch, region->sx, region->sy, 230 base, pitch, Bpp, region->dx, region->dy, 231 region->width, region->height, 232 HW_ROP2_COPY); 233 spin_unlock(&sm750_dev->slock); 234 } 235 236 static void lynxfb_ops_imageblit(struct fb_info *info, 237 const struct fb_image *image) 238 { 239 unsigned int base, pitch, Bpp; 240 unsigned int fgcol, bgcol; 241 struct lynxfb_par *par; 242 struct sm750_dev *sm750_dev; 243 244 par = info->par; 245 sm750_dev = par->dev; 246 /* 247 * each time 2d function begin to work,below three variable always need 248 * be set, seems we can put them together in some place 249 */ 250 base = par->crtc.o_screen; 251 pitch = info->fix.line_length; 252 Bpp = info->var.bits_per_pixel >> 3; 253 254 /* TODO: Implement hardware acceleration for image->depth > 1 */ 255 if (image->depth != 1) { 256 cfb_imageblit(info, image); 257 return; 258 } 259 260 if (info->fix.visual == FB_VISUAL_TRUECOLOR || 261 info->fix.visual == FB_VISUAL_DIRECTCOLOR) { 262 fgcol = ((u32 *)info->pseudo_palette)[image->fg_color]; 263 bgcol = ((u32 *)info->pseudo_palette)[image->bg_color]; 264 } else { 265 fgcol = image->fg_color; 266 bgcol = image->bg_color; 267 } 268 269 /* 270 * If not use spin_lock, system will die if user load driver 271 * and immediately unload driver frequently (dual) 272 * since they fb_count could change during the lifetime of 273 * this lock, we are holding it for all cases. 274 */ 275 spin_lock(&sm750_dev->slock); 276 277 sm750_dev->accel.de_imageblit(&sm750_dev->accel, 278 image->data, image->width >> 3, 0, 279 base, pitch, Bpp, 280 image->dx, image->dy, 281 image->width, image->height, 282 fgcol, bgcol, HW_ROP2_COPY); 283 spin_unlock(&sm750_dev->slock); 284 } 285 286 static int lynxfb_ops_pan_display(struct fb_var_screeninfo *var, 287 struct fb_info *info) 288 { 289 struct lynxfb_par *par; 290 struct lynxfb_crtc *crtc; 291 292 if (!info) 293 return -EINVAL; 294 295 par = info->par; 296 crtc = &par->crtc; 297 return hw_sm750_pan_display(crtc, var, info); 298 } 299 300 static inline void lynxfb_set_visual_mode(struct fb_info *info) 301 { 302 switch (info->var.bits_per_pixel) { 303 case 8: 304 info->fix.visual = FB_VISUAL_PSEUDOCOLOR; 305 break; 306 case 16: 307 case 24: 308 case 32: 309 info->fix.visual = FB_VISUAL_TRUECOLOR; 310 break; 311 default: 312 break; 313 } 314 } 315 316 static inline int lynxfb_set_color_offsets(struct fb_info *info) 317 { 318 lynxfb_set_visual_mode(info); 319 320 switch (info->var.bits_per_pixel) { 321 case 8: 322 info->var.red.offset = 0; 323 info->var.red.length = 8; 324 info->var.green.offset = 0; 325 info->var.green.length = 8; 326 info->var.blue.offset = 0; 327 info->var.blue.length = 8; 328 info->var.transp.length = 0; 329 info->var.transp.offset = 0; 330 break; 331 case 16: 332 info->var.red.offset = 11; 333 info->var.red.length = 5; 334 info->var.green.offset = 5; 335 info->var.green.length = 6; 336 info->var.blue.offset = 0; 337 info->var.blue.length = 5; 338 info->var.transp.length = 0; 339 info->var.transp.offset = 0; 340 break; 341 case 24: 342 case 32: 343 info->var.red.offset = 16; 344 info->var.red.length = 8; 345 info->var.green.offset = 8; 346 info->var.green.length = 8; 347 info->var.blue.offset = 0; 348 info->var.blue.length = 8; 349 break; 350 default: 351 return -EINVAL; 352 } 353 return 0; 354 } 355 356 static int lynxfb_ops_set_par(struct fb_info *info) 357 { 358 struct lynxfb_par *par; 359 struct lynxfb_crtc *crtc; 360 struct lynxfb_output *output; 361 struct fb_var_screeninfo *var; 362 struct fb_fix_screeninfo *fix; 363 int ret; 364 unsigned int line_length; 365 366 if (!info) 367 return -EINVAL; 368 369 ret = 0; 370 par = info->par; 371 crtc = &par->crtc; 372 output = &par->output; 373 var = &info->var; 374 fix = &info->fix; 375 376 /* fix structure is not so FIX ... */ 377 line_length = var->xres_virtual * var->bits_per_pixel / 8; 378 line_length = ALIGN(line_length, crtc->line_pad); 379 fix->line_length = line_length; 380 pr_info("fix->line_length = %d\n", fix->line_length); 381 382 /* 383 * var->red,green,blue,transp are need to be set by driver 384 * and these data should be set before setcolreg routine 385 */ 386 387 ret = lynxfb_set_color_offsets(info); 388 389 var->height = var->width = -1; 390 var->accel_flags = 0;/*FB_ACCELF_TEXT;*/ 391 392 if (ret) { 393 pr_err("bpp %d not supported\n", var->bits_per_pixel); 394 return ret; 395 } 396 ret = hw_sm750_crtc_setMode(crtc, var, fix); 397 if (!ret) 398 ret = hw_sm750_output_setMode(output, var, fix); 399 return ret; 400 } 401 402 static inline unsigned int chan_to_field(unsigned int chan, 403 struct fb_bitfield *bf) 404 { 405 chan &= 0xffff; 406 chan >>= 16 - bf->length; 407 return chan << bf->offset; 408 } 409 410 static int __maybe_unused lynxfb_suspend(struct device *dev) 411 { 412 struct fb_info *info; 413 struct sm750_dev *sm750_dev; 414 415 sm750_dev = dev_get_drvdata(dev); 416 417 console_lock(); 418 info = sm750_dev->fbinfo[0]; 419 if (info) 420 /* 1 means do suspend */ 421 fb_set_suspend(info, 1); 422 info = sm750_dev->fbinfo[1]; 423 if (info) 424 /* 1 means do suspend */ 425 fb_set_suspend(info, 1); 426 427 console_unlock(); 428 return 0; 429 } 430 431 static int __maybe_unused lynxfb_resume(struct device *dev) 432 { 433 struct pci_dev *pdev = to_pci_dev(dev); 434 struct fb_info *info; 435 struct sm750_dev *sm750_dev; 436 437 struct lynxfb_par *par; 438 struct lynxfb_crtc *crtc; 439 struct lynx_cursor *cursor; 440 441 sm750_dev = pci_get_drvdata(pdev); 442 443 console_lock(); 444 445 hw_sm750_inithw(sm750_dev, pdev); 446 447 info = sm750_dev->fbinfo[0]; 448 449 if (info) { 450 par = info->par; 451 crtc = &par->crtc; 452 cursor = &crtc->cursor; 453 memset_io(cursor->vstart, 0x0, cursor->size); 454 memset_io(crtc->v_screen, 0x0, crtc->vidmem_size); 455 lynxfb_ops_set_par(info); 456 fb_set_suspend(info, 0); 457 } 458 459 info = sm750_dev->fbinfo[1]; 460 461 if (info) { 462 par = info->par; 463 crtc = &par->crtc; 464 cursor = &crtc->cursor; 465 memset_io(cursor->vstart, 0x0, cursor->size); 466 memset_io(crtc->v_screen, 0x0, crtc->vidmem_size); 467 lynxfb_ops_set_par(info); 468 fb_set_suspend(info, 0); 469 } 470 471 pdev->dev.power.power_state.event = PM_EVENT_RESUME; 472 473 console_unlock(); 474 return 0; 475 } 476 477 static int lynxfb_ops_check_var(struct fb_var_screeninfo *var, 478 struct fb_info *info) 479 { 480 int ret; 481 struct lynxfb_par *par; 482 struct lynxfb_crtc *crtc; 483 resource_size_t request; 484 485 ret = 0; 486 par = info->par; 487 crtc = &par->crtc; 488 489 pr_debug("check var:%dx%d-%d\n", 490 var->xres, 491 var->yres, 492 var->bits_per_pixel); 493 494 ret = lynxfb_set_color_offsets(info); 495 496 if (ret) { 497 pr_err("bpp %d not supported\n", var->bits_per_pixel); 498 return ret; 499 } 500 501 var->height = var->width = -1; 502 var->accel_flags = 0;/* FB_ACCELF_TEXT; */ 503 504 /* check if current fb's video memory big enough to hold the onscreen*/ 505 request = var->xres_virtual * (var->bits_per_pixel >> 3); 506 /* defaulty crtc->channel go with par->index */ 507 508 request = ALIGN(request, crtc->line_pad); 509 request = request * var->yres_virtual; 510 if (crtc->vidmem_size < request) { 511 pr_err("not enough video memory for mode\n"); 512 return -ENOMEM; 513 } 514 515 return hw_sm750_crtc_checkMode(crtc, var); 516 } 517 518 static int lynxfb_ops_setcolreg(unsigned int regno, 519 unsigned int red, 520 unsigned int green, 521 unsigned int blue, 522 unsigned int transp, 523 struct fb_info *info) 524 { 525 struct lynxfb_par *par; 526 struct lynxfb_crtc *crtc; 527 struct fb_var_screeninfo *var; 528 int ret; 529 530 par = info->par; 531 crtc = &par->crtc; 532 var = &info->var; 533 ret = 0; 534 535 if (regno > 256) { 536 pr_err("regno = %d\n", regno); 537 return -EINVAL; 538 } 539 540 if (info->var.grayscale) 541 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; 542 543 if (var->bits_per_pixel == 8 && 544 info->fix.visual == FB_VISUAL_PSEUDOCOLOR) { 545 red >>= 8; 546 green >>= 8; 547 blue >>= 8; 548 ret = hw_sm750_setColReg(crtc, regno, red, green, blue); 549 goto exit; 550 } 551 552 if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 256) { 553 u32 val; 554 555 if (var->bits_per_pixel == 16 || 556 var->bits_per_pixel == 32 || 557 var->bits_per_pixel == 24) { 558 val = chan_to_field(red, &var->red); 559 val |= chan_to_field(green, &var->green); 560 val |= chan_to_field(blue, &var->blue); 561 par->pseudo_palette[regno] = val; 562 goto exit; 563 } 564 } 565 566 ret = -EINVAL; 567 568 exit: 569 return ret; 570 } 571 572 static int lynxfb_ops_blank(int blank, struct fb_info *info) 573 { 574 struct lynxfb_par *par; 575 struct lynxfb_output *output; 576 577 pr_debug("blank = %d.\n", blank); 578 par = info->par; 579 output = &par->output; 580 return output->proc_setBLANK(output, blank); 581 } 582 583 static int sm750fb_set_drv(struct lynxfb_par *par) 584 { 585 int ret; 586 struct sm750_dev *sm750_dev; 587 struct lynxfb_output *output; 588 struct lynxfb_crtc *crtc; 589 590 ret = 0; 591 592 sm750_dev = par->dev; 593 output = &par->output; 594 crtc = &par->crtc; 595 596 crtc->vidmem_size = sm750_dev->vidmem_size; 597 if (sm750_dev->fb_count > 1) 598 crtc->vidmem_size >>= 1; 599 600 /* setup crtc and output member */ 601 sm750_dev->hwCursor = g_hwcursor; 602 603 crtc->line_pad = 16; 604 crtc->xpanstep = 8; 605 crtc->ypanstep = 1; 606 crtc->ywrapstep = 0; 607 608 output->proc_setBLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ? 609 hw_sm750le_setBLANK : hw_sm750_setBLANK; 610 /* chip specific phase */ 611 sm750_dev->accel.de_wait = (sm750_dev->revid == SM750LE_REVISION_ID) ? 612 hw_sm750le_deWait : hw_sm750_deWait; 613 switch (sm750_dev->dataflow) { 614 case sm750_simul_pri: 615 output->paths = sm750_pnc; 616 crtc->channel = sm750_primary; 617 crtc->o_screen = 0; 618 crtc->v_screen = sm750_dev->pvMem; 619 pr_info("use simul primary mode\n"); 620 break; 621 case sm750_simul_sec: 622 output->paths = sm750_pnc; 623 crtc->channel = sm750_secondary; 624 crtc->o_screen = 0; 625 crtc->v_screen = sm750_dev->pvMem; 626 break; 627 case sm750_dual_normal: 628 if (par->index == 0) { 629 output->paths = sm750_panel; 630 crtc->channel = sm750_primary; 631 crtc->o_screen = 0; 632 crtc->v_screen = sm750_dev->pvMem; 633 } else { 634 output->paths = sm750_crt; 635 crtc->channel = sm750_secondary; 636 /* not consider of padding stuffs for o_screen,need fix */ 637 crtc->o_screen = sm750_dev->vidmem_size >> 1; 638 crtc->v_screen = sm750_dev->pvMem + crtc->o_screen; 639 } 640 break; 641 case sm750_dual_swap: 642 if (par->index == 0) { 643 output->paths = sm750_panel; 644 crtc->channel = sm750_secondary; 645 crtc->o_screen = 0; 646 crtc->v_screen = sm750_dev->pvMem; 647 } else { 648 output->paths = sm750_crt; 649 crtc->channel = sm750_primary; 650 /* not consider of padding stuffs for o_screen, 651 * need fix 652 */ 653 crtc->o_screen = sm750_dev->vidmem_size >> 1; 654 crtc->v_screen = sm750_dev->pvMem + crtc->o_screen; 655 } 656 break; 657 default: 658 ret = -EINVAL; 659 } 660 661 return ret; 662 } 663 664 static struct fb_ops lynxfb_ops = { 665 .owner = THIS_MODULE, 666 .fb_check_var = lynxfb_ops_check_var, 667 .fb_set_par = lynxfb_ops_set_par, 668 .fb_setcolreg = lynxfb_ops_setcolreg, 669 .fb_blank = lynxfb_ops_blank, 670 .fb_fillrect = cfb_fillrect, 671 .fb_imageblit = cfb_imageblit, 672 .fb_copyarea = cfb_copyarea, 673 /* cursor */ 674 .fb_cursor = lynxfb_ops_cursor, 675 }; 676 677 static int lynxfb_set_fbinfo(struct fb_info *info, int index) 678 { 679 int i; 680 struct lynxfb_par *par; 681 struct sm750_dev *sm750_dev; 682 struct lynxfb_crtc *crtc; 683 struct lynxfb_output *output; 684 struct fb_var_screeninfo *var; 685 struct fb_fix_screeninfo *fix; 686 687 const struct fb_videomode *pdb[] = { 688 lynx750_ext, NULL, vesa_modes, 689 }; 690 int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE}; 691 static const char * const mdb_desc[] = { 692 "driver prepared modes", 693 "kernel prepared default modedb", 694 "kernel HELPERS prepared vesa_modes", 695 }; 696 697 static const char *fixId[2] = { 698 "sm750_fb1", "sm750_fb2", 699 }; 700 701 int ret, line_length; 702 703 ret = 0; 704 par = (struct lynxfb_par *)info->par; 705 sm750_dev = par->dev; 706 crtc = &par->crtc; 707 output = &par->output; 708 var = &info->var; 709 fix = &info->fix; 710 711 /* set index */ 712 par->index = index; 713 output->channel = &crtc->channel; 714 sm750fb_set_drv(par); 715 lynxfb_ops.fb_pan_display = lynxfb_ops_pan_display; 716 717 /* 718 * set current cursor variable and proc pointer, 719 * must be set after crtc member initialized 720 */ 721 crtc->cursor.offset = crtc->o_screen + crtc->vidmem_size - 1024; 722 crtc->cursor.mmio = sm750_dev->pvReg + 723 0x800f0 + (int)crtc->channel * 0x140; 724 725 pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio); 726 crtc->cursor.max_h = crtc->cursor.max_w = 64; 727 crtc->cursor.size = crtc->cursor.max_h * crtc->cursor.max_w * 2 / 8; 728 crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset; 729 730 memset_io(crtc->cursor.vstart, 0, crtc->cursor.size); 731 if (!g_hwcursor) { 732 lynxfb_ops.fb_cursor = NULL; 733 sm750_hw_cursor_disable(&crtc->cursor); 734 } 735 736 /* set info->fbops, must be set before fb_find_mode */ 737 if (!sm750_dev->accel_off) { 738 /* use 2d acceleration */ 739 lynxfb_ops.fb_fillrect = lynxfb_ops_fillrect; 740 lynxfb_ops.fb_copyarea = lynxfb_ops_copyarea; 741 lynxfb_ops.fb_imageblit = lynxfb_ops_imageblit; 742 } 743 info->fbops = &lynxfb_ops; 744 745 if (!g_fbmode[index]) { 746 g_fbmode[index] = g_def_fbmode; 747 if (index) 748 g_fbmode[index] = g_fbmode[0]; 749 } 750 751 for (i = 0; i < 3; i++) { 752 ret = fb_find_mode(var, info, g_fbmode[index], 753 pdb[i], cdb[i], NULL, 8); 754 755 if (ret == 1) { 756 pr_info("success! use specified mode:%s in %s\n", 757 g_fbmode[index], 758 mdb_desc[i]); 759 break; 760 } else if (ret == 2) { 761 pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n", 762 g_fbmode[index], 763 mdb_desc[i]); 764 break; 765 } else if (ret == 3) { 766 pr_warn("wanna use default mode\n"); 767 /*break;*/ 768 } else if (ret == 4) { 769 pr_warn("fall back to any valid mode\n"); 770 } else { 771 pr_warn("ret = %d,fb_find_mode failed,with %s\n", 772 ret, 773 mdb_desc[i]); 774 } 775 } 776 777 /* some member of info->var had been set by fb_find_mode */ 778 779 pr_info("Member of info->var is :\n" 780 "xres=%d\n" 781 "yres=%d\n" 782 "xres_virtual=%d\n" 783 "yres_virtual=%d\n" 784 "xoffset=%d\n" 785 "yoffset=%d\n" 786 "bits_per_pixel=%d\n" 787 " ...\n", 788 var->xres, 789 var->yres, 790 var->xres_virtual, 791 var->yres_virtual, 792 var->xoffset, 793 var->yoffset, 794 var->bits_per_pixel); 795 796 /* set par */ 797 par->info = info; 798 799 /* set info */ 800 line_length = ALIGN((var->xres_virtual * var->bits_per_pixel / 8), 801 crtc->line_pad); 802 803 info->pseudo_palette = &par->pseudo_palette[0]; 804 info->screen_base = crtc->v_screen; 805 pr_debug("screen_base vaddr = %p\n", info->screen_base); 806 info->screen_size = line_length * var->yres_virtual; 807 info->flags = FBINFO_FLAG_DEFAULT | 0; 808 809 /* set info->fix */ 810 fix->type = FB_TYPE_PACKED_PIXELS; 811 fix->type_aux = 0; 812 fix->xpanstep = crtc->xpanstep; 813 fix->ypanstep = crtc->ypanstep; 814 fix->ywrapstep = crtc->ywrapstep; 815 fix->accel = FB_ACCEL_SMI; 816 817 strscpy(fix->id, fixId[index], sizeof(fix->id)); 818 819 fix->smem_start = crtc->o_screen + sm750_dev->vidmem_start; 820 pr_info("fix->smem_start = %lx\n", fix->smem_start); 821 /* 822 * according to mmap experiment from user space application, 823 * fix->mmio_len should not larger than virtual size 824 * (xres_virtual x yres_virtual x ByPP) 825 * Below line maybe buggy when user mmap fb dev node and write 826 * data into the bound over virtual size 827 */ 828 fix->smem_len = crtc->vidmem_size; 829 pr_info("fix->smem_len = %x\n", fix->smem_len); 830 info->screen_size = fix->smem_len; 831 fix->line_length = line_length; 832 fix->mmio_start = sm750_dev->vidreg_start; 833 pr_info("fix->mmio_start = %lx\n", fix->mmio_start); 834 fix->mmio_len = sm750_dev->vidreg_size; 835 pr_info("fix->mmio_len = %x\n", fix->mmio_len); 836 837 lynxfb_set_visual_mode(info); 838 839 /* set var */ 840 var->activate = FB_ACTIVATE_NOW; 841 var->accel_flags = 0; 842 var->vmode = FB_VMODE_NONINTERLACED; 843 844 pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n", 845 info->cmap.start, info->cmap.len, 846 info->cmap.red, info->cmap.green, info->cmap.blue, 847 info->cmap.transp); 848 849 ret = fb_alloc_cmap(&info->cmap, 256, 0); 850 if (ret < 0) { 851 pr_err("Could not allocate memory for cmap.\n"); 852 goto exit; 853 } 854 855 pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n", 856 info->cmap.start, info->cmap.len, 857 info->cmap.red, info->cmap.green, info->cmap.blue, 858 info->cmap.transp); 859 860 exit: 861 lynxfb_ops_check_var(var, info); 862 return ret; 863 } 864 865 /* chip specific g_option configuration routine */ 866 static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src) 867 { 868 char *opt; 869 int swap; 870 871 swap = 0; 872 873 sm750_dev->initParm.chip_clk = 0; 874 sm750_dev->initParm.mem_clk = 0; 875 sm750_dev->initParm.master_clk = 0; 876 sm750_dev->initParm.powerMode = 0; 877 sm750_dev->initParm.setAllEngOff = 0; 878 sm750_dev->initParm.resetMemory = 1; 879 880 /* defaultly turn g_hwcursor on for both view */ 881 g_hwcursor = 3; 882 883 if (!src || !*src) { 884 dev_warn(&sm750_dev->pdev->dev, "no specific g_option.\n"); 885 goto NO_PARAM; 886 } 887 888 while ((opt = strsep(&src, ":")) != NULL && *opt != 0) { 889 dev_info(&sm750_dev->pdev->dev, "opt=%s\n", opt); 890 dev_info(&sm750_dev->pdev->dev, "src=%s\n", src); 891 892 if (!strncmp(opt, "swap", strlen("swap"))) { 893 swap = 1; 894 } else if (!strncmp(opt, "nocrt", strlen("nocrt"))) { 895 sm750_dev->nocrt = 1; 896 } else if (!strncmp(opt, "36bit", strlen("36bit"))) { 897 sm750_dev->pnltype = sm750_doubleTFT; 898 } else if (!strncmp(opt, "18bit", strlen("18bit"))) { 899 sm750_dev->pnltype = sm750_dualTFT; 900 } else if (!strncmp(opt, "24bit", strlen("24bit"))) { 901 sm750_dev->pnltype = sm750_24TFT; 902 } else if (!strncmp(opt, "nohwc0", strlen("nohwc0"))) { 903 g_hwcursor &= ~0x1; 904 } else if (!strncmp(opt, "nohwc1", strlen("nohwc1"))) { 905 g_hwcursor &= ~0x2; 906 } else if (!strncmp(opt, "nohwc", strlen("nohwc"))) { 907 g_hwcursor = 0; 908 } else { 909 if (!g_fbmode[0]) { 910 g_fbmode[0] = opt; 911 dev_info(&sm750_dev->pdev->dev, 912 "find fbmode0 : %s\n", g_fbmode[0]); 913 } else if (!g_fbmode[1]) { 914 g_fbmode[1] = opt; 915 dev_info(&sm750_dev->pdev->dev, 916 "find fbmode1 : %s\n", g_fbmode[1]); 917 } else { 918 dev_warn(&sm750_dev->pdev->dev, "How many view you wann set?\n"); 919 } 920 } 921 } 922 923 NO_PARAM: 924 if (sm750_dev->revid != SM750LE_REVISION_ID) { 925 if (sm750_dev->fb_count > 1) { 926 if (swap) 927 sm750_dev->dataflow = sm750_dual_swap; 928 else 929 sm750_dev->dataflow = sm750_dual_normal; 930 } else { 931 if (swap) 932 sm750_dev->dataflow = sm750_simul_sec; 933 else 934 sm750_dev->dataflow = sm750_simul_pri; 935 } 936 } else { 937 /* SM750LE only have one crt channel */ 938 sm750_dev->dataflow = sm750_simul_sec; 939 /* sm750le do not have complex attributes */ 940 sm750_dev->nocrt = 0; 941 } 942 } 943 944 static void sm750fb_framebuffer_release(struct sm750_dev *sm750_dev) 945 { 946 struct fb_info *fb_info; 947 948 while (sm750_dev->fb_count) { 949 fb_info = sm750_dev->fbinfo[sm750_dev->fb_count - 1]; 950 unregister_framebuffer(fb_info); 951 framebuffer_release(fb_info); 952 sm750_dev->fb_count--; 953 } 954 } 955 956 static int sm750fb_framebuffer_alloc(struct sm750_dev *sm750_dev, int fbidx) 957 { 958 struct fb_info *fb_info; 959 struct lynxfb_par *par; 960 int err; 961 962 fb_info = framebuffer_alloc(sizeof(struct lynxfb_par), 963 &sm750_dev->pdev->dev); 964 if (!fb_info) 965 return -ENOMEM; 966 967 sm750_dev->fbinfo[fbidx] = fb_info; 968 par = fb_info->par; 969 par->dev = sm750_dev; 970 971 err = lynxfb_set_fbinfo(fb_info, fbidx); 972 if (err) 973 goto release_fb; 974 975 err = register_framebuffer(fb_info); 976 if (err < 0) 977 goto release_fb; 978 979 sm750_dev->fb_count++; 980 981 return 0; 982 983 release_fb: 984 framebuffer_release(fb_info); 985 return err; 986 } 987 988 static int lynxfb_kick_out_firmware_fb(struct pci_dev *pdev) 989 { 990 struct apertures_struct *ap; 991 bool primary = false; 992 993 ap = alloc_apertures(1); 994 if (!ap) 995 return -ENOMEM; 996 997 ap->ranges[0].base = pci_resource_start(pdev, 0); 998 ap->ranges[0].size = pci_resource_len(pdev, 0); 999 #ifdef CONFIG_X86 1000 primary = pdev->resource[PCI_ROM_RESOURCE].flags & 1001 IORESOURCE_ROM_SHADOW; 1002 #endif 1003 remove_conflicting_framebuffers(ap, "sm750_fb1", primary); 1004 kfree(ap); 1005 return 0; 1006 } 1007 1008 static int lynxfb_pci_probe(struct pci_dev *pdev, 1009 const struct pci_device_id *ent) 1010 { 1011 struct sm750_dev *sm750_dev = NULL; 1012 int max_fb; 1013 int fbidx; 1014 int err; 1015 1016 err = lynxfb_kick_out_firmware_fb(pdev); 1017 if (err) 1018 return err; 1019 1020 /* enable device */ 1021 err = pcim_enable_device(pdev); 1022 if (err) 1023 return err; 1024 1025 err = -ENOMEM; 1026 sm750_dev = devm_kzalloc(&pdev->dev, sizeof(*sm750_dev), GFP_KERNEL); 1027 if (!sm750_dev) 1028 return err; 1029 1030 sm750_dev->fbinfo[0] = sm750_dev->fbinfo[1] = NULL; 1031 sm750_dev->devid = pdev->device; 1032 sm750_dev->revid = pdev->revision; 1033 sm750_dev->pdev = pdev; 1034 sm750_dev->mtrr_off = g_nomtrr; 1035 sm750_dev->mtrr.vram = 0; 1036 sm750_dev->accel_off = g_noaccel; 1037 spin_lock_init(&sm750_dev->slock); 1038 1039 if (!sm750_dev->accel_off) { 1040 /* 1041 * hook deInit and 2d routines, notes that below hw_xxx 1042 * routine can work on most of lynx chips 1043 * if some chip need specific function, 1044 * please hook it in smXXX_set_drv routine 1045 */ 1046 sm750_dev->accel.de_init = sm750_hw_de_init; 1047 sm750_dev->accel.de_fillrect = sm750_hw_fillrect; 1048 sm750_dev->accel.de_copyarea = sm750_hw_copyarea; 1049 sm750_dev->accel.de_imageblit = sm750_hw_imageblit; 1050 } 1051 1052 /* call chip specific setup routine */ 1053 sm750fb_setup(sm750_dev, g_settings); 1054 1055 /* call chip specific mmap routine */ 1056 err = hw_sm750_map(sm750_dev, pdev); 1057 if (err) 1058 return err; 1059 1060 if (!sm750_dev->mtrr_off) 1061 sm750_dev->mtrr.vram = arch_phys_wc_add(sm750_dev->vidmem_start, 1062 sm750_dev->vidmem_size); 1063 1064 memset_io(sm750_dev->pvMem, 0, sm750_dev->vidmem_size); 1065 1066 pci_set_drvdata(pdev, sm750_dev); 1067 1068 /* call chipInit routine */ 1069 hw_sm750_inithw(sm750_dev, pdev); 1070 1071 /* allocate frame buffer info structures according to g_dualview */ 1072 max_fb = g_dualview ? 2 : 1; 1073 for (fbidx = 0; fbidx < max_fb; fbidx++) { 1074 err = sm750fb_framebuffer_alloc(sm750_dev, fbidx); 1075 if (err) 1076 goto release_fb; 1077 } 1078 1079 return 0; 1080 1081 release_fb: 1082 sm750fb_framebuffer_release(sm750_dev); 1083 return err; 1084 } 1085 1086 static void lynxfb_pci_remove(struct pci_dev *pdev) 1087 { 1088 struct sm750_dev *sm750_dev; 1089 1090 sm750_dev = pci_get_drvdata(pdev); 1091 1092 sm750fb_framebuffer_release(sm750_dev); 1093 arch_phys_wc_del(sm750_dev->mtrr.vram); 1094 1095 iounmap(sm750_dev->pvReg); 1096 iounmap(sm750_dev->pvMem); 1097 kfree(g_settings); 1098 } 1099 1100 static int __init lynxfb_setup(char *options) 1101 { 1102 int len; 1103 char *opt, *tmp; 1104 1105 if (!options || !*options) { 1106 pr_warn("no options.\n"); 1107 return 0; 1108 } 1109 1110 pr_info("options:%s\n", options); 1111 1112 len = strlen(options) + 1; 1113 g_settings = kzalloc(len, GFP_KERNEL); 1114 if (!g_settings) 1115 return -ENOMEM; 1116 1117 tmp = g_settings; 1118 1119 /* 1120 * Notes: 1121 * char * strsep(char **s,const char * ct); 1122 * @s: the string to be searched 1123 * @ct :the characters to search for 1124 * 1125 * strsep() updates @options to pointer after the first found token 1126 * it also returns the pointer ahead the token. 1127 */ 1128 while ((opt = strsep(&options, ":")) != NULL) { 1129 /* options that mean for any lynx chips are configured here */ 1130 if (!strncmp(opt, "noaccel", strlen("noaccel"))) { 1131 g_noaccel = 1; 1132 } else if (!strncmp(opt, "nomtrr", strlen("nomtrr"))) { 1133 g_nomtrr = 1; 1134 } else if (!strncmp(opt, "dual", strlen("dual"))) { 1135 g_dualview = 1; 1136 } else { 1137 strcat(tmp, opt); 1138 tmp += strlen(opt); 1139 if (options) 1140 *tmp++ = ':'; 1141 else 1142 *tmp++ = 0; 1143 } 1144 } 1145 1146 /* misc g_settings are transport to chip specific routines */ 1147 pr_info("parameter left for chip specific analysis:%s\n", g_settings); 1148 return 0; 1149 } 1150 1151 static const struct pci_device_id smi_pci_table[] = { 1152 { PCI_DEVICE(0x126f, 0x0750), }, 1153 {0,} 1154 }; 1155 1156 MODULE_DEVICE_TABLE(pci, smi_pci_table); 1157 1158 static SIMPLE_DEV_PM_OPS(lynxfb_pm_ops, lynxfb_suspend, lynxfb_resume); 1159 1160 static struct pci_driver lynxfb_driver = { 1161 .name = "sm750fb", 1162 .id_table = smi_pci_table, 1163 .probe = lynxfb_pci_probe, 1164 .remove = lynxfb_pci_remove, 1165 .driver.pm = &lynxfb_pm_ops, 1166 }; 1167 1168 static int __init lynxfb_init(void) 1169 { 1170 char *option; 1171 1172 #ifdef MODULE 1173 option = g_option; 1174 #else 1175 if (fb_get_options("sm750fb", &option)) 1176 return -ENODEV; 1177 #endif 1178 1179 lynxfb_setup(option); 1180 return pci_register_driver(&lynxfb_driver); 1181 } 1182 module_init(lynxfb_init); 1183 1184 static void __exit lynxfb_exit(void) 1185 { 1186 pci_unregister_driver(&lynxfb_driver); 1187 } 1188 module_exit(lynxfb_exit); 1189 1190 module_param(g_option, charp, 0444); 1191 1192 MODULE_PARM_DESC(g_option, 1193 "\n\t\tCommon options:\n" 1194 "\t\tnoaccel:disable 2d capabilities\n" 1195 "\t\tnomtrr:disable MTRR attribute for video memory\n" 1196 "\t\tdualview:dual frame buffer feature enabled\n" 1197 "\t\tnohwc:disable hardware cursor\n" 1198 "\t\tUsual example:\n" 1199 "\t\tinsmod ./sm750fb.ko g_option=\"noaccel,nohwc,1280x1024-8@60\"\n" 1200 ); 1201 1202 MODULE_AUTHOR("monk liu <monk.liu@siliconmotion.com>"); 1203 MODULE_AUTHOR("Sudip Mukherjee <sudip@vectorindia.org>"); 1204 MODULE_DESCRIPTION("Frame buffer driver for SM750 chipset"); 1205 MODULE_LICENSE("Dual BSD/GPL"); 1206