1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/aperture.h> 3 #include <linux/kernel.h> 4 #include <linux/module.h> 5 #include <linux/errno.h> 6 #include <linux/string.h> 7 #include <linux/mm.h> 8 #include <linux/slab.h> 9 #include <linux/delay.h> 10 #include <linux/fb.h> 11 #include <linux/ioport.h> 12 #include <linux/init.h> 13 #include <linux/pci.h> 14 #include <linux/mm_types.h> 15 #include <linux/vmalloc.h> 16 #include <linux/pagemap.h> 17 #include <linux/console.h> 18 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 = -1; 390 var->width = -1; 391 var->accel_flags = 0;/*FB_ACCELF_TEXT;*/ 392 393 if (ret) { 394 pr_err("bpp %d not supported\n", var->bits_per_pixel); 395 return ret; 396 } 397 ret = hw_sm750_crtc_setMode(crtc, var, fix); 398 if (!ret) 399 ret = hw_sm750_output_setMode(output, var, fix); 400 return ret; 401 } 402 403 static inline unsigned int chan_to_field(unsigned int chan, 404 struct fb_bitfield *bf) 405 { 406 chan &= 0xffff; 407 chan >>= 16 - bf->length; 408 return chan << bf->offset; 409 } 410 411 static int __maybe_unused lynxfb_suspend(struct device *dev) 412 { 413 struct fb_info *info; 414 struct sm750_dev *sm750_dev; 415 416 sm750_dev = dev_get_drvdata(dev); 417 418 console_lock(); 419 info = sm750_dev->fbinfo[0]; 420 if (info) 421 /* 1 means do suspend */ 422 fb_set_suspend(info, 1); 423 info = sm750_dev->fbinfo[1]; 424 if (info) 425 /* 1 means do suspend */ 426 fb_set_suspend(info, 1); 427 428 console_unlock(); 429 return 0; 430 } 431 432 static int __maybe_unused lynxfb_resume(struct device *dev) 433 { 434 struct pci_dev *pdev = to_pci_dev(dev); 435 struct fb_info *info; 436 struct sm750_dev *sm750_dev; 437 438 struct lynxfb_par *par; 439 struct lynxfb_crtc *crtc; 440 struct lynx_cursor *cursor; 441 442 sm750_dev = pci_get_drvdata(pdev); 443 444 console_lock(); 445 446 hw_sm750_inithw(sm750_dev, pdev); 447 448 info = sm750_dev->fbinfo[0]; 449 450 if (info) { 451 par = info->par; 452 crtc = &par->crtc; 453 cursor = &crtc->cursor; 454 memset_io(cursor->vstart, 0x0, cursor->size); 455 memset_io(crtc->v_screen, 0x0, crtc->vidmem_size); 456 lynxfb_ops_set_par(info); 457 fb_set_suspend(info, 0); 458 } 459 460 info = sm750_dev->fbinfo[1]; 461 462 if (info) { 463 par = info->par; 464 crtc = &par->crtc; 465 cursor = &crtc->cursor; 466 memset_io(cursor->vstart, 0x0, cursor->size); 467 memset_io(crtc->v_screen, 0x0, crtc->vidmem_size); 468 lynxfb_ops_set_par(info); 469 fb_set_suspend(info, 0); 470 } 471 472 pdev->dev.power.power_state.event = PM_EVENT_RESUME; 473 474 console_unlock(); 475 return 0; 476 } 477 478 static int lynxfb_ops_check_var(struct fb_var_screeninfo *var, 479 struct fb_info *info) 480 { 481 int ret; 482 struct lynxfb_par *par; 483 struct lynxfb_crtc *crtc; 484 resource_size_t request; 485 486 ret = 0; 487 par = info->par; 488 crtc = &par->crtc; 489 490 pr_debug("check var:%dx%d-%d\n", 491 var->xres, 492 var->yres, 493 var->bits_per_pixel); 494 495 ret = lynxfb_set_color_offsets(info); 496 497 if (ret) { 498 pr_err("bpp %d not supported\n", var->bits_per_pixel); 499 return ret; 500 } 501 502 var->height = -1; 503 var->width = -1; 504 var->accel_flags = 0;/* FB_ACCELF_TEXT; */ 505 506 /* check if current fb's video memory big enough to hold the onscreen*/ 507 request = var->xres_virtual * (var->bits_per_pixel >> 3); 508 /* defaulty crtc->channel go with par->index */ 509 510 request = ALIGN(request, crtc->line_pad); 511 request = request * var->yres_virtual; 512 if (crtc->vidmem_size < request) { 513 pr_err("not enough video memory for mode\n"); 514 return -ENOMEM; 515 } 516 517 return hw_sm750_crtc_checkMode(crtc, var); 518 } 519 520 static int lynxfb_ops_setcolreg(unsigned int regno, 521 unsigned int red, 522 unsigned int green, 523 unsigned int blue, 524 unsigned int transp, 525 struct fb_info *info) 526 { 527 struct lynxfb_par *par; 528 struct lynxfb_crtc *crtc; 529 struct fb_var_screeninfo *var; 530 int ret; 531 532 par = info->par; 533 crtc = &par->crtc; 534 var = &info->var; 535 ret = 0; 536 537 if (regno > 256) { 538 pr_err("regno = %d\n", regno); 539 return -EINVAL; 540 } 541 542 if (info->var.grayscale) 543 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; 544 545 if (var->bits_per_pixel == 8 && 546 info->fix.visual == FB_VISUAL_PSEUDOCOLOR) { 547 red >>= 8; 548 green >>= 8; 549 blue >>= 8; 550 ret = hw_sm750_setColReg(crtc, regno, red, green, blue); 551 goto exit; 552 } 553 554 if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 256) { 555 u32 val; 556 557 if (var->bits_per_pixel == 16 || 558 var->bits_per_pixel == 32 || 559 var->bits_per_pixel == 24) { 560 val = chan_to_field(red, &var->red); 561 val |= chan_to_field(green, &var->green); 562 val |= chan_to_field(blue, &var->blue); 563 par->pseudo_palette[regno] = val; 564 goto exit; 565 } 566 } 567 568 ret = -EINVAL; 569 570 exit: 571 return ret; 572 } 573 574 static int lynxfb_ops_blank(int blank, struct fb_info *info) 575 { 576 struct lynxfb_par *par; 577 struct lynxfb_output *output; 578 579 pr_debug("blank = %d.\n", blank); 580 par = info->par; 581 output = &par->output; 582 return output->proc_setBLANK(output, blank); 583 } 584 585 static int sm750fb_set_drv(struct lynxfb_par *par) 586 { 587 int ret; 588 struct sm750_dev *sm750_dev; 589 struct lynxfb_output *output; 590 struct lynxfb_crtc *crtc; 591 592 ret = 0; 593 594 sm750_dev = par->dev; 595 output = &par->output; 596 crtc = &par->crtc; 597 598 crtc->vidmem_size = sm750_dev->vidmem_size; 599 if (sm750_dev->fb_count > 1) 600 crtc->vidmem_size >>= 1; 601 602 /* setup crtc and output member */ 603 sm750_dev->hwCursor = g_hwcursor; 604 605 crtc->line_pad = 16; 606 crtc->xpanstep = 8; 607 crtc->ypanstep = 1; 608 crtc->ywrapstep = 0; 609 610 output->proc_setBLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ? 611 hw_sm750le_setBLANK : hw_sm750_setBLANK; 612 /* chip specific phase */ 613 sm750_dev->accel.de_wait = (sm750_dev->revid == SM750LE_REVISION_ID) ? 614 hw_sm750le_deWait : hw_sm750_deWait; 615 switch (sm750_dev->dataflow) { 616 case sm750_simul_pri: 617 output->paths = sm750_pnc; 618 crtc->channel = sm750_primary; 619 crtc->o_screen = 0; 620 crtc->v_screen = sm750_dev->pvMem; 621 pr_info("use simul primary mode\n"); 622 break; 623 case sm750_simul_sec: 624 output->paths = sm750_pnc; 625 crtc->channel = sm750_secondary; 626 crtc->o_screen = 0; 627 crtc->v_screen = sm750_dev->pvMem; 628 break; 629 case sm750_dual_normal: 630 if (par->index == 0) { 631 output->paths = sm750_panel; 632 crtc->channel = sm750_primary; 633 crtc->o_screen = 0; 634 crtc->v_screen = sm750_dev->pvMem; 635 } else { 636 output->paths = sm750_crt; 637 crtc->channel = sm750_secondary; 638 /* not consider of padding stuffs for o_screen,need fix */ 639 crtc->o_screen = sm750_dev->vidmem_size >> 1; 640 crtc->v_screen = sm750_dev->pvMem + crtc->o_screen; 641 } 642 break; 643 case sm750_dual_swap: 644 if (par->index == 0) { 645 output->paths = sm750_panel; 646 crtc->channel = sm750_secondary; 647 crtc->o_screen = 0; 648 crtc->v_screen = sm750_dev->pvMem; 649 } else { 650 output->paths = sm750_crt; 651 crtc->channel = sm750_primary; 652 /* not consider of padding stuffs for o_screen, 653 * need fix 654 */ 655 crtc->o_screen = sm750_dev->vidmem_size >> 1; 656 crtc->v_screen = sm750_dev->pvMem + crtc->o_screen; 657 } 658 break; 659 default: 660 ret = -EINVAL; 661 } 662 663 return ret; 664 } 665 666 static struct fb_ops lynxfb_ops = { 667 .owner = THIS_MODULE, 668 .fb_check_var = lynxfb_ops_check_var, 669 .fb_set_par = lynxfb_ops_set_par, 670 .fb_setcolreg = lynxfb_ops_setcolreg, 671 .fb_blank = lynxfb_ops_blank, 672 .fb_fillrect = cfb_fillrect, 673 .fb_imageblit = cfb_imageblit, 674 .fb_copyarea = cfb_copyarea, 675 /* cursor */ 676 .fb_cursor = lynxfb_ops_cursor, 677 }; 678 679 static int lynxfb_set_fbinfo(struct fb_info *info, int index) 680 { 681 int i; 682 struct lynxfb_par *par; 683 struct sm750_dev *sm750_dev; 684 struct lynxfb_crtc *crtc; 685 struct lynxfb_output *output; 686 struct fb_var_screeninfo *var; 687 struct fb_fix_screeninfo *fix; 688 689 const struct fb_videomode *pdb[] = { 690 lynx750_ext, NULL, vesa_modes, 691 }; 692 int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE}; 693 static const char * const mdb_desc[] = { 694 "driver prepared modes", 695 "kernel prepared default modedb", 696 "kernel HELPERS prepared vesa_modes", 697 }; 698 699 static const char *fixId[2] = { 700 "sm750_fb1", "sm750_fb2", 701 }; 702 703 int ret, line_length; 704 705 ret = 0; 706 par = (struct lynxfb_par *)info->par; 707 sm750_dev = par->dev; 708 crtc = &par->crtc; 709 output = &par->output; 710 var = &info->var; 711 fix = &info->fix; 712 713 /* set index */ 714 par->index = index; 715 output->channel = &crtc->channel; 716 sm750fb_set_drv(par); 717 lynxfb_ops.fb_pan_display = lynxfb_ops_pan_display; 718 719 /* 720 * set current cursor variable and proc pointer, 721 * must be set after crtc member initialized 722 */ 723 crtc->cursor.offset = crtc->o_screen + crtc->vidmem_size - 1024; 724 crtc->cursor.mmio = sm750_dev->pvReg + 725 0x800f0 + (int)crtc->channel * 0x140; 726 727 pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio); 728 crtc->cursor.max_h = 64; 729 crtc->cursor.max_w = 64; 730 crtc->cursor.size = crtc->cursor.max_h * crtc->cursor.max_w * 2 / 8; 731 crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset; 732 733 memset_io(crtc->cursor.vstart, 0, crtc->cursor.size); 734 if (!g_hwcursor) { 735 lynxfb_ops.fb_cursor = NULL; 736 sm750_hw_cursor_disable(&crtc->cursor); 737 } 738 739 /* set info->fbops, must be set before fb_find_mode */ 740 if (!sm750_dev->accel_off) { 741 /* use 2d acceleration */ 742 lynxfb_ops.fb_fillrect = lynxfb_ops_fillrect; 743 lynxfb_ops.fb_copyarea = lynxfb_ops_copyarea; 744 lynxfb_ops.fb_imageblit = lynxfb_ops_imageblit; 745 } 746 info->fbops = &lynxfb_ops; 747 748 if (!g_fbmode[index]) { 749 g_fbmode[index] = g_def_fbmode; 750 if (index) 751 g_fbmode[index] = g_fbmode[0]; 752 } 753 754 for (i = 0; i < 3; i++) { 755 ret = fb_find_mode(var, info, g_fbmode[index], 756 pdb[i], cdb[i], NULL, 8); 757 758 if (ret == 1) { 759 pr_info("success! use specified mode:%s in %s\n", 760 g_fbmode[index], 761 mdb_desc[i]); 762 break; 763 } else if (ret == 2) { 764 pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n", 765 g_fbmode[index], 766 mdb_desc[i]); 767 break; 768 } else if (ret == 3) { 769 pr_warn("wanna use default mode\n"); 770 /*break;*/ 771 } else if (ret == 4) { 772 pr_warn("fall back to any valid mode\n"); 773 } else { 774 pr_warn("ret = %d,fb_find_mode failed,with %s\n", 775 ret, 776 mdb_desc[i]); 777 } 778 } 779 780 /* some member of info->var had been set by fb_find_mode */ 781 782 pr_info("Member of info->var is :\n" 783 "xres=%d\n" 784 "yres=%d\n" 785 "xres_virtual=%d\n" 786 "yres_virtual=%d\n" 787 "xoffset=%d\n" 788 "yoffset=%d\n" 789 "bits_per_pixel=%d\n" 790 " ...\n", 791 var->xres, 792 var->yres, 793 var->xres_virtual, 794 var->yres_virtual, 795 var->xoffset, 796 var->yoffset, 797 var->bits_per_pixel); 798 799 /* set par */ 800 par->info = info; 801 802 /* set info */ 803 line_length = ALIGN((var->xres_virtual * var->bits_per_pixel / 8), 804 crtc->line_pad); 805 806 info->pseudo_palette = &par->pseudo_palette[0]; 807 info->screen_base = crtc->v_screen; 808 pr_debug("screen_base vaddr = %p\n", info->screen_base); 809 info->screen_size = line_length * var->yres_virtual; 810 811 /* set info->fix */ 812 fix->type = FB_TYPE_PACKED_PIXELS; 813 fix->type_aux = 0; 814 fix->xpanstep = crtc->xpanstep; 815 fix->ypanstep = crtc->ypanstep; 816 fix->ywrapstep = crtc->ywrapstep; 817 fix->accel = FB_ACCEL_SMI; 818 819 strscpy(fix->id, fixId[index], sizeof(fix->id)); 820 821 fix->smem_start = crtc->o_screen + sm750_dev->vidmem_start; 822 pr_info("fix->smem_start = %lx\n", fix->smem_start); 823 /* 824 * according to mmap experiment from user space application, 825 * fix->mmio_len should not larger than virtual size 826 * (xres_virtual x yres_virtual x ByPP) 827 * Below line maybe buggy when user mmap fb dev node and write 828 * data into the bound over virtual size 829 */ 830 fix->smem_len = crtc->vidmem_size; 831 pr_info("fix->smem_len = %x\n", fix->smem_len); 832 info->screen_size = fix->smem_len; 833 fix->line_length = line_length; 834 fix->mmio_start = sm750_dev->vidreg_start; 835 pr_info("fix->mmio_start = %lx\n", fix->mmio_start); 836 fix->mmio_len = sm750_dev->vidreg_size; 837 pr_info("fix->mmio_len = %x\n", fix->mmio_len); 838 839 lynxfb_set_visual_mode(info); 840 841 /* set var */ 842 var->activate = FB_ACTIVATE_NOW; 843 var->accel_flags = 0; 844 var->vmode = FB_VMODE_NONINTERLACED; 845 846 pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n", 847 info->cmap.start, info->cmap.len, 848 info->cmap.red, info->cmap.green, info->cmap.blue, 849 info->cmap.transp); 850 851 ret = fb_alloc_cmap(&info->cmap, 256, 0); 852 if (ret < 0) { 853 pr_err("Could not allocate memory for cmap.\n"); 854 goto exit; 855 } 856 857 pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n", 858 info->cmap.start, info->cmap.len, 859 info->cmap.red, info->cmap.green, info->cmap.blue, 860 info->cmap.transp); 861 862 exit: 863 lynxfb_ops_check_var(var, info); 864 return ret; 865 } 866 867 /* chip specific g_option configuration routine */ 868 static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src) 869 { 870 char *opt; 871 int swap; 872 873 swap = 0; 874 875 sm750_dev->initParm.chip_clk = 0; 876 sm750_dev->initParm.mem_clk = 0; 877 sm750_dev->initParm.master_clk = 0; 878 sm750_dev->initParm.powerMode = 0; 879 sm750_dev->initParm.setAllEngOff = 0; 880 sm750_dev->initParm.resetMemory = 1; 881 882 /* defaultly turn g_hwcursor on for both view */ 883 g_hwcursor = 3; 884 885 if (!src || !*src) { 886 dev_warn(&sm750_dev->pdev->dev, "no specific g_option.\n"); 887 goto NO_PARAM; 888 } 889 890 while ((opt = strsep(&src, ":")) != NULL && *opt != 0) { 891 dev_info(&sm750_dev->pdev->dev, "opt=%s\n", opt); 892 dev_info(&sm750_dev->pdev->dev, "src=%s\n", src); 893 894 if (!strncmp(opt, "swap", strlen("swap"))) { 895 swap = 1; 896 } else if (!strncmp(opt, "nocrt", strlen("nocrt"))) { 897 sm750_dev->nocrt = 1; 898 } else if (!strncmp(opt, "36bit", strlen("36bit"))) { 899 sm750_dev->pnltype = sm750_doubleTFT; 900 } else if (!strncmp(opt, "18bit", strlen("18bit"))) { 901 sm750_dev->pnltype = sm750_dualTFT; 902 } else if (!strncmp(opt, "24bit", strlen("24bit"))) { 903 sm750_dev->pnltype = sm750_24TFT; 904 } else if (!strncmp(opt, "nohwc0", strlen("nohwc0"))) { 905 g_hwcursor &= ~0x1; 906 } else if (!strncmp(opt, "nohwc1", strlen("nohwc1"))) { 907 g_hwcursor &= ~0x2; 908 } else if (!strncmp(opt, "nohwc", strlen("nohwc"))) { 909 g_hwcursor = 0; 910 } else { 911 if (!g_fbmode[0]) { 912 g_fbmode[0] = opt; 913 dev_info(&sm750_dev->pdev->dev, 914 "find fbmode0 : %s\n", g_fbmode[0]); 915 } else if (!g_fbmode[1]) { 916 g_fbmode[1] = opt; 917 dev_info(&sm750_dev->pdev->dev, 918 "find fbmode1 : %s\n", g_fbmode[1]); 919 } else { 920 dev_warn(&sm750_dev->pdev->dev, "How many view you wann set?\n"); 921 } 922 } 923 } 924 925 NO_PARAM: 926 if (sm750_dev->revid != SM750LE_REVISION_ID) { 927 if (sm750_dev->fb_count > 1) { 928 if (swap) 929 sm750_dev->dataflow = sm750_dual_swap; 930 else 931 sm750_dev->dataflow = sm750_dual_normal; 932 } else { 933 if (swap) 934 sm750_dev->dataflow = sm750_simul_sec; 935 else 936 sm750_dev->dataflow = sm750_simul_pri; 937 } 938 } else { 939 /* SM750LE only have one crt channel */ 940 sm750_dev->dataflow = sm750_simul_sec; 941 /* sm750le do not have complex attributes */ 942 sm750_dev->nocrt = 0; 943 } 944 } 945 946 static void sm750fb_framebuffer_release(struct sm750_dev *sm750_dev) 947 { 948 struct fb_info *fb_info; 949 950 while (sm750_dev->fb_count) { 951 fb_info = sm750_dev->fbinfo[sm750_dev->fb_count - 1]; 952 unregister_framebuffer(fb_info); 953 framebuffer_release(fb_info); 954 sm750_dev->fb_count--; 955 } 956 } 957 958 static int sm750fb_framebuffer_alloc(struct sm750_dev *sm750_dev, int fbidx) 959 { 960 struct fb_info *fb_info; 961 struct lynxfb_par *par; 962 int err; 963 964 fb_info = framebuffer_alloc(sizeof(struct lynxfb_par), 965 &sm750_dev->pdev->dev); 966 if (!fb_info) 967 return -ENOMEM; 968 969 sm750_dev->fbinfo[fbidx] = fb_info; 970 par = fb_info->par; 971 par->dev = sm750_dev; 972 973 err = lynxfb_set_fbinfo(fb_info, fbidx); 974 if (err) 975 goto release_fb; 976 977 err = register_framebuffer(fb_info); 978 if (err < 0) 979 goto release_fb; 980 981 sm750_dev->fb_count++; 982 983 return 0; 984 985 release_fb: 986 framebuffer_release(fb_info); 987 return err; 988 } 989 990 static int lynxfb_pci_probe(struct pci_dev *pdev, 991 const struct pci_device_id *ent) 992 { 993 struct sm750_dev *sm750_dev = NULL; 994 int max_fb; 995 int fbidx; 996 int err; 997 998 err = aperture_remove_conflicting_pci_devices(pdev, "sm750_fb1"); 999 if (err) 1000 return err; 1001 1002 /* enable device */ 1003 err = pcim_enable_device(pdev); 1004 if (err) 1005 return err; 1006 1007 err = -ENOMEM; 1008 sm750_dev = devm_kzalloc(&pdev->dev, sizeof(*sm750_dev), GFP_KERNEL); 1009 if (!sm750_dev) 1010 return err; 1011 1012 sm750_dev->fbinfo[0] = NULL; 1013 sm750_dev->fbinfo[1] = NULL; 1014 sm750_dev->devid = pdev->device; 1015 sm750_dev->revid = pdev->revision; 1016 sm750_dev->pdev = pdev; 1017 sm750_dev->mtrr_off = g_nomtrr; 1018 sm750_dev->mtrr.vram = 0; 1019 sm750_dev->accel_off = g_noaccel; 1020 spin_lock_init(&sm750_dev->slock); 1021 1022 if (!sm750_dev->accel_off) { 1023 /* 1024 * hook deInit and 2d routines, notes that below hw_xxx 1025 * routine can work on most of lynx chips 1026 * if some chip need specific function, 1027 * please hook it in smXXX_set_drv routine 1028 */ 1029 sm750_dev->accel.de_init = sm750_hw_de_init; 1030 sm750_dev->accel.de_fillrect = sm750_hw_fillrect; 1031 sm750_dev->accel.de_copyarea = sm750_hw_copyarea; 1032 sm750_dev->accel.de_imageblit = sm750_hw_imageblit; 1033 } 1034 1035 /* call chip specific setup routine */ 1036 sm750fb_setup(sm750_dev, g_settings); 1037 1038 /* call chip specific mmap routine */ 1039 err = hw_sm750_map(sm750_dev, pdev); 1040 if (err) 1041 return err; 1042 1043 if (!sm750_dev->mtrr_off) 1044 sm750_dev->mtrr.vram = arch_phys_wc_add(sm750_dev->vidmem_start, 1045 sm750_dev->vidmem_size); 1046 1047 memset_io(sm750_dev->pvMem, 0, sm750_dev->vidmem_size); 1048 1049 pci_set_drvdata(pdev, sm750_dev); 1050 1051 /* call chipInit routine */ 1052 hw_sm750_inithw(sm750_dev, pdev); 1053 1054 /* allocate frame buffer info structures according to g_dualview */ 1055 max_fb = g_dualview ? 2 : 1; 1056 for (fbidx = 0; fbidx < max_fb; fbidx++) { 1057 err = sm750fb_framebuffer_alloc(sm750_dev, fbidx); 1058 if (err) 1059 goto release_fb; 1060 } 1061 1062 return 0; 1063 1064 release_fb: 1065 sm750fb_framebuffer_release(sm750_dev); 1066 return err; 1067 } 1068 1069 static void lynxfb_pci_remove(struct pci_dev *pdev) 1070 { 1071 struct sm750_dev *sm750_dev; 1072 1073 sm750_dev = pci_get_drvdata(pdev); 1074 1075 sm750fb_framebuffer_release(sm750_dev); 1076 arch_phys_wc_del(sm750_dev->mtrr.vram); 1077 1078 iounmap(sm750_dev->pvReg); 1079 iounmap(sm750_dev->pvMem); 1080 kfree(g_settings); 1081 } 1082 1083 static int __init lynxfb_setup(char *options) 1084 { 1085 int len; 1086 char *opt, *tmp; 1087 1088 if (!options || !*options) { 1089 pr_warn("no options.\n"); 1090 return 0; 1091 } 1092 1093 pr_info("options:%s\n", options); 1094 1095 len = strlen(options) + 1; 1096 g_settings = kzalloc(len, GFP_KERNEL); 1097 if (!g_settings) 1098 return -ENOMEM; 1099 1100 tmp = g_settings; 1101 1102 /* 1103 * Notes: 1104 * char * strsep(char **s,const char * ct); 1105 * @s: the string to be searched 1106 * @ct :the characters to search for 1107 * 1108 * strsep() updates @options to pointer after the first found token 1109 * it also returns the pointer ahead the token. 1110 */ 1111 while ((opt = strsep(&options, ":")) != NULL) { 1112 /* options that mean for any lynx chips are configured here */ 1113 if (!strncmp(opt, "noaccel", strlen("noaccel"))) { 1114 g_noaccel = 1; 1115 } else if (!strncmp(opt, "nomtrr", strlen("nomtrr"))) { 1116 g_nomtrr = 1; 1117 } else if (!strncmp(opt, "dual", strlen("dual"))) { 1118 g_dualview = 1; 1119 } else { 1120 strcat(tmp, opt); 1121 tmp += strlen(opt); 1122 if (options) 1123 *tmp++ = ':'; 1124 else 1125 *tmp++ = 0; 1126 } 1127 } 1128 1129 /* misc g_settings are transport to chip specific routines */ 1130 pr_info("parameter left for chip specific analysis:%s\n", g_settings); 1131 return 0; 1132 } 1133 1134 static const struct pci_device_id smi_pci_table[] = { 1135 { PCI_DEVICE(0x126f, 0x0750), }, 1136 {0,} 1137 }; 1138 1139 MODULE_DEVICE_TABLE(pci, smi_pci_table); 1140 1141 static SIMPLE_DEV_PM_OPS(lynxfb_pm_ops, lynxfb_suspend, lynxfb_resume); 1142 1143 static struct pci_driver lynxfb_driver = { 1144 .name = "sm750fb", 1145 .id_table = smi_pci_table, 1146 .probe = lynxfb_pci_probe, 1147 .remove = lynxfb_pci_remove, 1148 .driver.pm = &lynxfb_pm_ops, 1149 }; 1150 1151 static int __init lynxfb_init(void) 1152 { 1153 char *option; 1154 1155 if (fb_modesetting_disabled("sm750fb")) 1156 return -ENODEV; 1157 1158 #ifdef MODULE 1159 option = g_option; 1160 #else 1161 if (fb_get_options("sm750fb", &option)) 1162 return -ENODEV; 1163 #endif 1164 1165 lynxfb_setup(option); 1166 return pci_register_driver(&lynxfb_driver); 1167 } 1168 module_init(lynxfb_init); 1169 1170 static void __exit lynxfb_exit(void) 1171 { 1172 pci_unregister_driver(&lynxfb_driver); 1173 } 1174 module_exit(lynxfb_exit); 1175 1176 module_param(g_option, charp, 0444); 1177 1178 MODULE_PARM_DESC(g_option, 1179 "\n\t\tCommon options:\n" 1180 "\t\tnoaccel:disable 2d capabilities\n" 1181 "\t\tnomtrr:disable MTRR attribute for video memory\n" 1182 "\t\tdualview:dual frame buffer feature enabled\n" 1183 "\t\tnohwc:disable hardware cursor\n" 1184 "\t\tUsual example:\n" 1185 "\t\tinsmod ./sm750fb.ko g_option=\"noaccel,nohwc,1280x1024-8@60\"\n" 1186 ); 1187 1188 MODULE_AUTHOR("monk liu <monk.liu@siliconmotion.com>"); 1189 MODULE_AUTHOR("Sudip Mukherjee <sudip@vectorindia.org>"); 1190 MODULE_DESCRIPTION("Frame buffer driver for SM750 chipset"); 1191 MODULE_LICENSE("Dual BSD/GPL"); 1192