drivers/staging/gma500/psb_fb.c

   1 /**************************************************************************
   2  * Copyright (c) 2007, Intel Corporation.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  **************************************************************************/
  19
  20 #include <linux/module.h>
  21 #include <linux/kernel.h>
  22 #include <linux/errno.h>
  23 #include <linux/string.h>
  24 #include <linux/mm.h>
  25 #include <linux/tty.h>
  26 #include <linux/slab.h>
  27 #include <linux/delay.h>
  28 #include <linux/fb.h>
  29 #include <linux/init.h>
  30 #include <linux/console.h>
  31
  32 #include <drm/drmP.h>
  33 #include <drm/drm.h>
  34 #include <drm/drm_crtc.h>
  35
  36 #include "psb_drv.h"
  37 #include "psb_intel_reg.h"
  38 #include "psb_intel_drv.h"
  39 #include "psb_fb.h"
  40 #include "psb_pvr_glue.h"
  41
  42 static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb);
  43 static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
  44                                               struct drm_file *file_priv,
  45                                               unsigned int *handle);
  46
  47 static const struct drm_framebuffer_funcs psb_fb_funcs = {
  48         .destroy = psb_user_framebuffer_destroy,
  49         .create_handle = psb_user_framebuffer_create_handle,
  50 };
  51
  52 #define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16)
  53
  54 void *psbfb_vdc_reg(struct drm_device *dev)
  55 {
  56         struct drm_psb_private *dev_priv;
  57         dev_priv = (struct drm_psb_private *) dev->dev_private;
  58         return dev_priv->vdc_reg;
  59 }
  60 /*EXPORT_SYMBOL(psbfb_vdc_reg); */
  61
  62 static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green,
  63                            unsigned blue, unsigned transp,
  64                            struct fb_info *info)
  65 {
  66         struct psb_fbdev *fbdev = info->par;
  67         struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb;
  68         uint32_t v;
  69
  70         if (!fb)
  71                 return -ENOMEM;
  72
  73         if (regno > 255)
  74                 return 1;
  75
  76         red = CMAP_TOHW(red, info->var.red.length);
  77         blue = CMAP_TOHW(blue, info->var.blue.length);
  78         green = CMAP_TOHW(green, info->var.green.length);
  79         transp = CMAP_TOHW(transp, info->var.transp.length);
  80
  81         v = (red << info->var.red.offset) |
  82             (green << info->var.green.offset) |
  83             (blue << info->var.blue.offset) |
  84             (transp << info->var.transp.offset);
  85
  86         if (regno < 16) {
  87                 switch (fb->bits_per_pixel) {
  88                 case 16:
  89                         ((uint32_t *) info->pseudo_palette)[regno] = v;
  90                         break;
  91                 case 24:
  92                 case 32:
  93                         ((uint32_t *) info->pseudo_palette)[regno] = v;
  94                         break;
  95                 }
  96         }
  97
  98         return 0;
  99 }
 100
 101 static int psbfb_kms_off(struct drm_device *dev, int suspend)
 102 {
 103         struct drm_framebuffer *fb = 0;
 104         struct psb_framebuffer *psbfb = to_psb_fb(fb);
 105         DRM_DEBUG("psbfb_kms_off_ioctl\n");
 106
 107         mutex_lock(&dev->mode_config.mutex);
 108         list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
 109                 struct fb_info *info = psbfb->fbdev;
 110
 111                 if (suspend) {
 112                         fb_set_suspend(info, 1);
 113                         drm_fb_helper_blank(FB_BLANK_POWERDOWN, info);
 114                 }
 115         }
 116         mutex_unlock(&dev->mode_config.mutex);
 117         return 0;
 118 }
 119
 120 int psbfb_kms_off_ioctl(struct drm_device *dev, void *data,
 121                         struct drm_file *file_priv)
 122 {
 123         int ret;
 124
 125         if (drm_psb_no_fb)
 126                 return 0;
 127         console_lock();
 128         ret = psbfb_kms_off(dev, 0);
 129         console_unlock();
 130
 131         return ret;
 132 }
 133
 134 static int psbfb_kms_on(struct drm_device *dev, int resume)
 135 {
 136         struct drm_framebuffer *fb = 0;
 137         struct psb_framebuffer *psbfb = to_psb_fb(fb);
 138
 139         DRM_DEBUG("psbfb_kms_on_ioctl\n");
 140
 141         mutex_lock(&dev->mode_config.mutex);
 142         list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
 143                 struct fb_info *info = psbfb->fbdev;
 144
 145                 if (resume) {
 146                         fb_set_suspend(info, 0);
 147                         drm_fb_helper_blank(FB_BLANK_UNBLANK, info);
 148                 }
 149         }
 150         mutex_unlock(&dev->mode_config.mutex);
 151
 152         return 0;
 153 }
 154
 155 int psbfb_kms_on_ioctl(struct drm_device *dev, void *data,
 156                        struct drm_file *file_priv)
 157 {
 158         int ret;
 159
 160         if (drm_psb_no_fb)
 161                 return 0;
 162         console_lock();
 163         ret = psbfb_kms_on(dev, 0);
 164         console_unlock();
 165         drm_helper_disable_unused_functions(dev);
 166         return ret;
 167 }
 168
 169 void psbfb_suspend(struct drm_device *dev)
 170 {
 171         console_lock();
 172         psbfb_kms_off(dev, 1);
 173         console_unlock();
 174 }
 175
 176 void psbfb_resume(struct drm_device *dev)
 177 {
 178         console_lock();
 179         psbfb_kms_on(dev, 1);
 180         console_unlock();
 181         drm_helper_disable_unused_functions(dev);
 182 }
 183
 184 static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 185 {
 186         int page_num = 0;
 187         int i;
 188         unsigned long address = 0;
 189         int ret;
 190         unsigned long pfn;
 191         struct psb_framebuffer *psbfb = vma->vm_private_data;
 192         struct drm_device *dev = psbfb->base.dev;
 193         struct drm_psb_private *dev_priv = dev->dev_private;
 194         struct psb_gtt *pg = dev_priv->pg;
 195         unsigned long phys_addr = (unsigned long)pg->stolen_base;
 196
 197         page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 198
 199         address = (unsigned long)vmf->virtual_address;
 200
 201         vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 202
 203         for (i = 0; i < page_num; i++) {
 204                 pfn = (phys_addr >> PAGE_SHIFT); /* phys_to_pfn(phys_addr); */
 205
 206                 ret = vm_insert_mixed(vma, address, pfn);
 207                 if (unlikely((ret == -EBUSY) || (ret != 0 && i > 0)))
 208                         break;
 209                 else if (unlikely(ret != 0)) {
 210                         ret = (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS;
 211                         return ret;
 212                 }
 213
 214                 address += PAGE_SIZE;
 215                 phys_addr += PAGE_SIZE;
 216         }
 217
 218         return VM_FAULT_NOPAGE;
 219 }
 220
 221 static void psbfb_vm_open(struct vm_area_struct *vma)
 222 {
 223         DRM_DEBUG("vm_open\n");
 224 }
 225
 226 static void psbfb_vm_close(struct vm_area_struct *vma)
 227 {
 228         DRM_DEBUG("vm_close\n");
 229 }
 230
 231 static struct vm_operations_struct psbfb_vm_ops = {
 232         .fault  = psbfb_vm_fault,
 233         .open   = psbfb_vm_open,
 234         .close  = psbfb_vm_close
 235 };
 236
 237 static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 238 {
 239         struct psb_fbdev *fbdev = info->par;
 240         struct psb_framebuffer *psbfb = fbdev->pfb;
 241         char *fb_screen_base = NULL;
 242         struct drm_device *dev = psbfb->base.dev;
 243         struct drm_psb_private *dev_priv = dev->dev_private;
 244         struct psb_gtt *pg = dev_priv->pg;
 245
 246         if (vma->vm_pgoff != 0)
 247                 return -EINVAL;
 248         if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
 249                 return -EINVAL;
 250
 251         if (!psbfb->addr_space)
 252                 psbfb->addr_space = vma->vm_file->f_mapping;
 253
 254         fb_screen_base = (char *)info->screen_base;
 255
 256         DRM_DEBUG("vm_pgoff 0x%lx, screen base %p vram_addr %p\n",
 257                                 vma->vm_pgoff, fb_screen_base, pg->vram_addr);
 258
 259         /*if using stolen memory, */
 260         if (fb_screen_base == pg->vram_addr) {
 261                 vma->vm_ops = &psbfb_vm_ops;
 262                 vma->vm_private_data = (void *)psbfb;
 263                 vma->vm_flags |= VM_RESERVED | VM_IO |
 264                                                 VM_MIXEDMAP | VM_DONTEXPAND;
 265         } else {
 266         /*using IMG meminfo, can I use pvrmmap to map it?*/
 267
 268         }
 269
 270         return 0;
 271 }
 272
 273
 274 static struct fb_ops psbfb_ops = {
 275         .owner = THIS_MODULE,
 276         .fb_check_var = drm_fb_helper_check_var,
 277         .fb_set_par = drm_fb_helper_set_par,
 278         .fb_blank = drm_fb_helper_blank,
 279         .fb_setcolreg = psbfb_setcolreg,
 280         .fb_fillrect = psbfb_fillrect,
 281         .fb_copyarea = psbfb_copyarea,
 282         .fb_imageblit = psbfb_imageblit,
 283         .fb_mmap = psbfb_mmap,
 284         .fb_sync = psbfb_sync,
 285 };
 286
 287 static struct drm_framebuffer *psb_framebuffer_create
 288                         (struct drm_device *dev, struct drm_mode_fb_cmd *r,
 289                          void *mm_private)
 290 {
 291         struct psb_framebuffer *fb;
 292         int ret;
 293
 294         fb = kzalloc(sizeof(*fb), GFP_KERNEL);
 295         if (!fb)
 296                 return NULL;
 297
 298         ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs);
 299
 300         if (ret)
 301                 goto err;
 302
 303         drm_helper_mode_fill_fb_struct(&fb->base, r);
 304
 305         fb->bo = mm_private;
 306
 307         return &fb->base;
 308
 309 err:
 310         kfree(fb);
 311         return NULL;
 312 }
 313
 314 static struct drm_framebuffer *psb_user_framebuffer_create
 315                         (struct drm_device *dev, struct drm_file *filp,
 316                          struct drm_mode_fb_cmd *r)
 317 {
 318         return NULL;
 319 #if 0
 320         struct ttm_buffer_object *bo = NULL;
 321         uint64_t size;
 322
 323         bo = ttm_buffer_object_lookup(psb_fpriv(filp)->tfile, r->handle);
 324         if (!bo)
 325                 return NULL;
 326
 327         /* JB: TODO not drop, make smarter */
 328         size = ((uint64_t) bo->num_pages) << PAGE_SHIFT;
 329         if (size < r->width * r->height * 4)
 330                 return NULL;
 331
 332         /* JB: TODO not drop, refcount buffer */
 333         return psb_framebuffer_create(dev, r, bo);
 334
 335         struct psb_framebuffer *psbfb;
 336         struct drm_framebuffer *fb;
 337         struct fb_info *info;
 338         void *psKernelMemInfo = NULL;
 339         void * hKernelMemInfo = (void *)r->handle;
 340         struct drm_psb_private *dev_priv
 341                 = (struct drm_psb_private *)dev->dev_private;
 342         struct psb_fbdev *fbdev = dev_priv->fbdev;
 343         struct psb_gtt *pg = dev_priv->pg;
 344         int ret;
 345         uint32_t offset;
 346         uint64_t size;
 347
 348         ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
 349         if (ret) {
 350                 DRM_ERROR("Cannot get meminfo for handle 0x%x\n",
 351                                                 (u32)hKernelMemInfo);
 352                 return NULL;
 353         }
 354
 355         DRM_DEBUG("Got Kernel MemInfo for handle %lx\n",
 356                   (u32)hKernelMemInfo);
 357
 358         /* JB: TODO not drop, make smarter */
 359         size = psKernelMemInfo->ui32AllocSize;
 360         if (size < r->height * r->pitch)
 361                 return NULL;
 362
 363         /* JB: TODO not drop, refcount buffer */
 364         /* return psb_framebuffer_create(dev, r, bo); */
 365
 366         fb = psb_framebuffer_create(dev, r, (void *)psKernelMemInfo);
 367         if (!fb) {
 368                 DRM_ERROR("failed to allocate fb.\n");
 369                 return NULL;
 370         }
 371
 372         psbfb = to_psb_fb(fb);
 373         psbfb->size = size;
 374         psbfb->hKernelMemInfo = hKernelMemInfo;
 375
 376         DRM_DEBUG("Mapping to gtt..., KernelMemInfo %p\n", psKernelMemInfo);
 377
 378         /*if not VRAM, map it into tt aperture*/
 379         if (psKernelMemInfo->pvLinAddrKM != pg->vram_addr) {
 380                 ret = psb_gtt_map_meminfo(dev, hKernelMemInfo, &offset);
 381                 if (ret) {
 382                         DRM_ERROR("map meminfo for 0x%x failed\n",
 383                                   (u32)hKernelMemInfo);
 384                         return NULL;
 385                 }
 386                 psbfb->offset = (offset << PAGE_SHIFT);
 387         } else {
 388                 psbfb->offset = 0;
 389         }
 390         info = framebuffer_alloc(0, &dev->pdev->dev);
 391         if (!info)
 392                 return NULL;
 393
 394         strcpy(info->fix.id, "psbfb");
 395
 396         info->flags = FBINFO_DEFAULT;
 397         info->fix.accel = FB_ACCEL_I830;        /*FIXMEAC*/
 398         info->fbops = &psbfb_ops;
 399
 400         info->fix.smem_start = dev->mode_config.fb_base;
 401         info->fix.smem_len = size;
 402
 403         info->screen_base = psKernelMemInfo->pvLinAddrKM;
 404         info->screen_size = size;
 405
 406         drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
 407         drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
 408                                                         fb->width, fb->height);
 409
 410         info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
 411         info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
 412
 413         info->pixmap.size = 64 * 1024;
 414         info->pixmap.buf_align = 8;
 415         info->pixmap.access_align = 32;
 416         info->pixmap.flags = FB_PIXMAP_SYSTEM;
 417         info->pixmap.scan_align = 1;
 418
 419         psbfb->fbdev = info;
 420         fbdev->pfb = psbfb;
 421
 422         fbdev->psb_fb_helper.fb = fb;
 423         fbdev->psb_fb_helper.fbdev = info;
 424         MRSTLFBHandleChangeFB(dev, psbfb);
 425
 426         return fb;
 427 #endif
 428 }
 429
 430 static int psbfb_create(struct psb_fbdev *fbdev,
 431                                 struct drm_fb_helper_surface_size *sizes)
 432 {
 433         struct drm_device *dev = fbdev->psb_fb_helper.dev;
 434         struct drm_psb_private *dev_priv = dev->dev_private;
 435         struct psb_gtt *pg = dev_priv->pg;
 436         struct fb_info *info;
 437         struct drm_framebuffer *fb;
 438         struct psb_framebuffer *psbfb;
 439         struct drm_mode_fb_cmd mode_cmd;
 440         struct device *device = &dev->pdev->dev;
 441
 442         struct ttm_buffer_object *fbo = NULL;
 443         int size, aligned_size;
 444         int ret;
 445
 446         mode_cmd.width = sizes->surface_width;
 447         mode_cmd.height = sizes->surface_height;
 448
 449         mode_cmd.bpp = 32;
 450         /* HW requires pitch to be 64 byte aligned */
 451         mode_cmd.pitch =  ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64);
 452         mode_cmd.depth = 24;
 453
 454         size = mode_cmd.pitch * mode_cmd.height;
 455         aligned_size = ALIGN(size, PAGE_SIZE);
 456
 457         mutex_lock(&dev->struct_mutex);
 458         fb = psb_framebuffer_create(dev, &mode_cmd, fbo);
 459         if (!fb) {
 460                 DRM_ERROR("failed to allocate fb.\n");
 461                 ret = -ENOMEM;
 462                 goto out_err1;
 463         }
 464         psbfb = to_psb_fb(fb);
 465         psbfb->size = size;
 466
 467         info = framebuffer_alloc(sizeof(struct psb_fbdev), device);
 468         if (!info) {
 469                 ret = -ENOMEM;
 470                 goto out_err0;
 471         }
 472
 473         info->par = fbdev;
 474
 475         psbfb->fbdev = info;
 476
 477         fbdev->psb_fb_helper.fb = fb;
 478         fbdev->psb_fb_helper.fbdev = info;
 479         fbdev->pfb = psbfb;
 480
 481         strcpy(info->fix.id, "psbfb");
 482
 483         info->flags = FBINFO_DEFAULT;
 484         info->fbops = &psbfb_ops;
 485         info->fix.smem_start = dev->mode_config.fb_base;
 486         info->fix.smem_len = size;
 487         info->screen_base = (char *)pg->vram_addr;
 488         info->screen_size = size;
 489         memset(info->screen_base, 0, size);
 490
 491         drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
 492         drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
 493                                 sizes->fb_width, sizes->fb_height);
 494
 495         info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
 496         info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
 497
 498         info->pixmap.size = 64 * 1024;
 499         info->pixmap.buf_align = 8;
 500         info->pixmap.access_align = 32;
 501         info->pixmap.flags = FB_PIXMAP_SYSTEM;
 502         info->pixmap.scan_align = 1;
 503
 504         DRM_DEBUG("fb depth is %d\n", fb->depth);
 505         DRM_DEBUG("   pitch is %d\n", fb->pitch);
 506
 507         printk(KERN_INFO"allocated %dx%d fb\n",
 508                                 psbfb->base.width, psbfb->base.height);
 509
 510         mutex_unlock(&dev->struct_mutex);
 511
 512         return 0;
 513 out_err0:
 514         fb->funcs->destroy(fb);
 515 out_err1:
 516         mutex_unlock(&dev->struct_mutex);
 517         return ret;
 518 }
 519
 520 static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 521                                                         u16 blue, int regno)
 522 {
 523         DRM_DEBUG("%s\n", __func__);
 524 }
 525
 526 static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red,
 527                                         u16 *green, u16 *blue, int regno)
 528 {
 529         DRM_DEBUG("%s\n", __func__);
 530 }
 531
 532 static int psbfb_probe(struct drm_fb_helper *helper,
 533                                 struct drm_fb_helper_surface_size *sizes)
 534 {
 535         struct psb_fbdev *psb_fbdev = (struct psb_fbdev *)helper;
 536         int new_fb = 0;
 537         int ret;
 538
 539         DRM_DEBUG("%s\n", __func__);
 540
 541         if (!helper->fb) {
 542                 ret = psbfb_create(psb_fbdev, sizes);
 543                 if (ret)
 544                         return ret;
 545                 new_fb = 1;
 546         }
 547         return new_fb;
 548 }
 549
 550 struct drm_fb_helper_funcs psb_fb_helper_funcs = {
 551         .gamma_set = psbfb_gamma_set,
 552         .gamma_get = psbfb_gamma_get,
 553         .fb_probe = psbfb_probe,
 554 };
 555
 556 int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev)
 557 {
 558         struct fb_info *info;
 559         struct psb_framebuffer *psbfb = fbdev->pfb;
 560
 561         if (fbdev->psb_fb_helper.fbdev) {
 562                 info = fbdev->psb_fb_helper.fbdev;
 563                 unregister_framebuffer(info);
 564                 iounmap(info->screen_base);
 565                 framebuffer_release(info);
 566         }
 567
 568         drm_fb_helper_fini(&fbdev->psb_fb_helper);
 569
 570         drm_framebuffer_cleanup(&psbfb->base);
 571
 572         return 0;
 573 }
 574
 575 int psb_fbdev_init(struct drm_device *dev)
 576 {
 577         struct psb_fbdev *fbdev;
 578         struct drm_psb_private *dev_priv = dev->dev_private;
 579         int num_crtc;
 580
 581         fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL);
 582         if (!fbdev) {
 583                 DRM_ERROR("no memory\n");
 584                 return -ENOMEM;
 585         }
 586
 587         dev_priv->fbdev = fbdev;
 588         fbdev->psb_fb_helper.funcs = &psb_fb_helper_funcs;
 589
 590         num_crtc = 2;
 591
 592         drm_fb_helper_init(dev, &fbdev->psb_fb_helper, num_crtc,
 593                                                         INTELFB_CONN_LIMIT);
 594
 595         drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper);
 596         drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32);
 597         return 0;
 598 }
 599
 600 void psb_fbdev_fini(struct drm_device *dev)
 601 {
 602         struct drm_psb_private *dev_priv = dev->dev_private;
 603
 604         if (!dev_priv->fbdev)
 605                 return;
 606
 607         psb_fbdev_destroy(dev, dev_priv->fbdev);
 608         kfree(dev_priv->fbdev);
 609         dev_priv->fbdev = NULL;
 610 }
 611
 612
 613 static void psbfb_output_poll_changed(struct drm_device *dev)
 614 {
 615         struct drm_psb_private *dev_priv = dev->dev_private;
 616         struct psb_fbdev *fbdev = (struct psb_fbdev *)dev_priv->fbdev;
 617         drm_fb_helper_hotplug_event(&fbdev->psb_fb_helper);
 618 }
 619
 620 int psbfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
 621 {
 622         struct fb_info *info;
 623         struct psb_framebuffer *psbfb = to_psb_fb(fb);
 624
 625         if (drm_psb_no_fb)
 626                 return 0;
 627
 628         info = psbfb->fbdev;
 629         psbfb->pvrBO = NULL;
 630
 631         if (info)
 632                 framebuffer_release(info);
 633         return 0;
 634 }
 635 /*EXPORT_SYMBOL(psbfb_remove); */
 636
 637 static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
 638                                               struct drm_file *file_priv,
 639                                               unsigned int *handle)
 640 {
 641         /* JB: TODO currently we can't go from a bo to a handle with ttm */
 642         (void) file_priv;
 643         *handle = 0;
 644         return 0;
 645 }
 646
 647 static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb)
 648 {
 649         struct drm_device *dev = fb->dev;
 650         struct psb_framebuffer *psbfb = to_psb_fb(fb);
 651
 652         /*ummap gtt pages*/
 653         psb_gtt_unmap_meminfo(dev, psbfb->hKernelMemInfo);
 654         if (psbfb->fbdev)
 655                 psbfb_remove(dev, fb);
 656
 657         /* JB: TODO not drop, refcount buffer */
 658         drm_framebuffer_cleanup(fb);
 659         kfree(fb);
 660 }
 661
 662 static const struct drm_mode_config_funcs psb_mode_funcs = {
 663         .fb_create = psb_user_framebuffer_create,
 664         .output_poll_changed = psbfb_output_poll_changed,
 665 };
 666
 667 static int psb_create_backlight_property(struct drm_device *dev)
 668 {
 669         struct drm_psb_private *dev_priv
 670                                 = (struct drm_psb_private *) dev->dev_private;
 671         struct drm_property *backlight;
 672
 673         if (dev_priv->backlight_property)
 674                 return 0;
 675
 676         backlight = drm_property_create(dev,
 677                                         DRM_MODE_PROP_RANGE,
 678                                         "backlight",
 679                                         2);
 680         backlight->values[0] = 0;
 681         backlight->values[1] = 100;
 682
 683         dev_priv->backlight_property = backlight;
 684
 685         return 0;
 686 }
 687
 688 static void psb_setup_outputs(struct drm_device *dev)
 689 {
 690         struct drm_psb_private *dev_priv =
 691             (struct drm_psb_private *) dev->dev_private;
 692         struct drm_connector *connector;
 693
 694         PSB_DEBUG_ENTRY("\n");
 695
 696         drm_mode_create_scaling_mode_property(dev);
 697
 698         psb_create_backlight_property(dev);
 699
 700         if (IS_MRST(dev)) {
 701                 if (dev_priv->iLVDS_enable)
 702                         mrst_lvds_init(dev, &dev_priv->mode_dev);
 703                 else
 704                         DRM_ERROR("DSI is not supported\n");
 705         } else {
 706                 /* FIXME: check if SDVO init should be re-enabled */
 707                 psb_intel_lvds_init(dev, &dev_priv->mode_dev);
 708                 /* psb_intel_sdvo_init(dev, SDVOB); */
 709         }
 710
 711         list_for_each_entry(connector, &dev->mode_config.connector_list,
 712                             head) {
 713                 struct psb_intel_output *psb_intel_output =
 714                     to_psb_intel_output(connector);
 715                 struct drm_encoder *encoder = &psb_intel_output->enc;
 716                 int crtc_mask = 0, clone_mask = 0;
 717
 718                 /* valid crtcs */
 719                 switch (psb_intel_output->type) {
 720                 case INTEL_OUTPUT_SDVO:
 721                         crtc_mask = ((1 << 0) | (1 << 1));
 722                         clone_mask = (1 << INTEL_OUTPUT_SDVO);
 723                         break;
 724                 case INTEL_OUTPUT_LVDS:
 725                         PSB_DEBUG_ENTRY("LVDS.\n");
 726                         if (IS_MRST(dev))
 727                                 crtc_mask = (1 << 0);
 728                         else
 729                                 crtc_mask = (1 << 1);
 730                         clone_mask = (1 << INTEL_OUTPUT_LVDS);
 731                         break;
 732                 case INTEL_OUTPUT_MIPI:
 733                         PSB_DEBUG_ENTRY("MIPI.\n");
 734                         crtc_mask = (1 << 0);
 735                         clone_mask = (1 << INTEL_OUTPUT_MIPI);
 736                         break;
 737                 case INTEL_OUTPUT_MIPI2:
 738                         PSB_DEBUG_ENTRY("MIPI2.\n");
 739                         crtc_mask = (1 << 2);
 740                         clone_mask = (1 << INTEL_OUTPUT_MIPI2);
 741                         break;
 742                 case INTEL_OUTPUT_HDMI:
 743                         PSB_DEBUG_ENTRY("HDMI.\n");
 744                         crtc_mask = (1 << 1);
 745                         clone_mask = (1 << INTEL_OUTPUT_HDMI);
 746                         break;
 747                 }
 748
 749                 encoder->possible_crtcs = crtc_mask;
 750                 encoder->possible_clones =
 751                     psb_intel_connector_clones(dev, clone_mask);
 752
 753         }
 754 }
 755
 756 static void *psb_bo_from_handle(struct drm_device *dev,
 757                                 struct drm_file *file_priv,
 758                                 unsigned int handle)
 759 {
 760         void *psKernelMemInfo = NULL;
 761         void * hKernelMemInfo = (void *)handle;
 762         int ret;
 763
 764         ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
 765         if (ret) {
 766                 DRM_ERROR("Cannot get meminfo for handle 0x%x\n",
 767                           (u32)hKernelMemInfo);
 768                 return NULL;
 769         }
 770
 771         return (void *)psKernelMemInfo;
 772 }
 773
 774 static size_t psb_bo_size(struct drm_device *dev, void *bof)
 775 {
 776 #if 0
 777         void *psKernelMemInfo   = (void *)bof;
 778         return (size_t)psKernelMemInfo->ui32AllocSize;
 779 #else
 780         return 0;
 781 #endif
 782 }
 783
 784 static size_t psb_bo_offset(struct drm_device *dev, void *bof)
 785 {
 786         struct psb_framebuffer *psbfb
 787                 = (struct psb_framebuffer *)bof;
 788
 789         return (size_t)psbfb->offset;
 790 }
 791
 792 static int psb_bo_pin_for_scanout(struct drm_device *dev, void *bo)
 793 {
 794          return 0;
 795 }
 796
 797 static int psb_bo_unpin_for_scanout(struct drm_device *dev, void *bo)
 798 {
 799         return 0;
 800 }
 801
 802 void psb_modeset_init(struct drm_device *dev)
 803 {
 804         struct drm_psb_private *dev_priv =
 805             (struct drm_psb_private *) dev->dev_private;
 806         struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
 807         int i;
 808
 809         PSB_DEBUG_ENTRY("\n");
 810         /* Init mm functions */
 811         mode_dev->bo_from_handle = psb_bo_from_handle;
 812         mode_dev->bo_size = psb_bo_size;
 813         mode_dev->bo_offset = psb_bo_offset;
 814         mode_dev->bo_pin_for_scanout = psb_bo_pin_for_scanout;
 815         mode_dev->bo_unpin_for_scanout = psb_bo_unpin_for_scanout;
 816
 817         drm_mode_config_init(dev);
 818
 819         dev->mode_config.min_width = 0;
 820         dev->mode_config.min_height = 0;
 821
 822         dev->mode_config.funcs = (void *) &psb_mode_funcs;
 823
 824         /* set memory base */
 825         /* MRST and PSB should use BAR 2*/
 826         pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *)
 827                                         &(dev->mode_config.fb_base));
 828
 829         /* num pipes is 2 for PSB but 1 for Mrst */
 830         for (i = 0; i < dev_priv->num_pipe; i++)
 831                 psb_intel_crtc_init(dev, i, mode_dev);
 832
 833         dev->mode_config.max_width = 2048;
 834         dev->mode_config.max_height = 2048;
 835
 836         psb_setup_outputs(dev);
 837
 838         /* setup fbs */
 839         /* drm_initial_config(dev); */
 840 }
 841
 842 void psb_modeset_cleanup(struct drm_device *dev)
 843 {
 844         mutex_lock(&dev->struct_mutex);
 845
 846         drm_kms_helper_poll_fini(dev);
 847         psb_fbdev_fini(dev);
 848
 849         drm_mode_config_cleanup(dev);
 850
 851         mutex_unlock(&dev->struct_mutex);
 852 }