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 static int psbfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 274 {
 275         struct psb_fbdev *fbdev = info->par;
 276         struct psb_framebuffer *psbfb = fbdev->pfb;
 277         struct drm_device *dev = psbfb->base.dev;
 278         struct drm_psb_private *dev_priv = dev->dev_private;
 279         u32 __user *p = (u32 __user *)arg;
 280         u32 l;
 281         u32 buf[32];
 282         switch (cmd) {
 283         case 0x12345678:
 284                 if (!capable(CAP_SYS_RAWIO))
 285                         return -EPERM;
 286                 if (get_user(l, p))
 287                         return -EFAULT;
 288                 if (l > 32)
 289                         return -EMSGSIZE;
 290                 if (copy_from_user(buf, p + 1, l * sizeof(u32)))
 291                         return -EFAULT;
 292                 psbfb_2d_submit(dev_priv, buf, l);
 293                 return 0;
 294         default:
 295                 return -ENOTTY;
 296         }
 297 }
 298
 299 static struct fb_ops psbfb_ops = {
 300         .owner = THIS_MODULE,
 301         .fb_check_var = drm_fb_helper_check_var,
 302         .fb_set_par = drm_fb_helper_set_par,
 303         .fb_blank = drm_fb_helper_blank,
 304         .fb_setcolreg = psbfb_setcolreg,
 305         .fb_fillrect = psbfb_fillrect,
 306         .fb_copyarea = psbfb_copyarea,
 307         .fb_imageblit = psbfb_imageblit,
 308         .fb_mmap = psbfb_mmap,
 309         .fb_sync = psbfb_sync,
 310         .fb_ioctl = psbfb_ioctl,
 311 };
 312
 313 static struct drm_framebuffer *psb_framebuffer_create
 314                         (struct drm_device *dev, struct drm_mode_fb_cmd *r,
 315                          void *mm_private)
 316 {
 317         struct psb_framebuffer *fb;
 318         int ret;
 319
 320         fb = kzalloc(sizeof(*fb), GFP_KERNEL);
 321         if (!fb)
 322                 return NULL;
 323
 324         ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs);
 325
 326         if (ret)
 327                 goto err;
 328
 329         drm_helper_mode_fill_fb_struct(&fb->base, r);
 330
 331         fb->bo = mm_private;
 332
 333         return &fb->base;
 334
 335 err:
 336         kfree(fb);
 337         return NULL;
 338 }
 339
 340 static struct drm_framebuffer *psb_user_framebuffer_create
 341                         (struct drm_device *dev, struct drm_file *filp,
 342                          struct drm_mode_fb_cmd *r)
 343 {
 344         return NULL;
 345 #if 0
 346         struct ttm_buffer_object *bo = NULL;
 347         uint64_t size;
 348
 349         bo = ttm_buffer_object_lookup(psb_fpriv(filp)->tfile, r->handle);
 350         if (!bo)
 351                 return NULL;
 352
 353         /* JB: TODO not drop, make smarter */
 354         size = ((uint64_t) bo->num_pages) << PAGE_SHIFT;
 355         if (size < r->width * r->height * 4)
 356                 return NULL;
 357
 358         /* JB: TODO not drop, refcount buffer */
 359         return psb_framebuffer_create(dev, r, bo);
 360
 361         struct psb_framebuffer *psbfb;
 362         struct drm_framebuffer *fb;
 363         struct fb_info *info;
 364         void *psKernelMemInfo = NULL;
 365         void * hKernelMemInfo = (void *)r->handle;
 366         struct drm_psb_private *dev_priv
 367                 = (struct drm_psb_private *)dev->dev_private;
 368         struct psb_fbdev *fbdev = dev_priv->fbdev;
 369         struct psb_gtt *pg = dev_priv->pg;
 370         int ret;
 371         uint32_t offset;
 372         uint64_t size;
 373
 374         ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
 375         if (ret) {
 376                 DRM_ERROR("Cannot get meminfo for handle 0x%x\n",
 377                                                 (u32)hKernelMemInfo);
 378                 return NULL;
 379         }
 380
 381         DRM_DEBUG("Got Kernel MemInfo for handle %lx\n",
 382                   (u32)hKernelMemInfo);
 383
 384         /* JB: TODO not drop, make smarter */
 385         size = psKernelMemInfo->ui32AllocSize;
 386         if (size < r->height * r->pitch)
 387                 return NULL;
 388
 389         /* JB: TODO not drop, refcount buffer */
 390         /* return psb_framebuffer_create(dev, r, bo); */
 391
 392         fb = psb_framebuffer_create(dev, r, (void *)psKernelMemInfo);
 393         if (!fb) {
 394                 DRM_ERROR("failed to allocate fb.\n");
 395                 return NULL;
 396         }
 397
 398         psbfb = to_psb_fb(fb);
 399         psbfb->size = size;
 400         psbfb->hKernelMemInfo = hKernelMemInfo;
 401
 402         DRM_DEBUG("Mapping to gtt..., KernelMemInfo %p\n", psKernelMemInfo);
 403
 404         /*if not VRAM, map it into tt aperture*/
 405         if (psKernelMemInfo->pvLinAddrKM != pg->vram_addr) {
 406                 ret = psb_gtt_map_meminfo(dev, hKernelMemInfo, &offset);
 407                 if (ret) {
 408                         DRM_ERROR("map meminfo for 0x%x failed\n",
 409                                   (u32)hKernelMemInfo);
 410                         return NULL;
 411                 }
 412                 psbfb->offset = (offset << PAGE_SHIFT);
 413         } else {
 414                 psbfb->offset = 0;
 415         }
 416         info = framebuffer_alloc(0, &dev->pdev->dev);
 417         if (!info)
 418                 return NULL;
 419
 420         strcpy(info->fix.id, "psbfb");
 421
 422         info->flags = FBINFO_DEFAULT;
 423         info->fix.accel = FB_ACCEL_I830;        /*FIXMEAC*/
 424         info->fbops = &psbfb_ops;
 425
 426         info->fix.smem_start = dev->mode_config.fb_base;
 427         info->fix.smem_len = size;
 428
 429         info->screen_base = psKernelMemInfo->pvLinAddrKM;
 430         info->screen_size = size;
 431
 432         drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
 433         drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
 434                                                         fb->width, fb->height);
 435
 436         info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
 437         info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
 438
 439         info->pixmap.size = 64 * 1024;
 440         info->pixmap.buf_align = 8;
 441         info->pixmap.access_align = 32;
 442         info->pixmap.flags = FB_PIXMAP_SYSTEM;
 443         info->pixmap.scan_align = 1;
 444
 445         psbfb->fbdev = info;
 446         fbdev->pfb = psbfb;
 447
 448         fbdev->psb_fb_helper.fb = fb;
 449         fbdev->psb_fb_helper.fbdev = info;
 450         MRSTLFBHandleChangeFB(dev, psbfb);
 451
 452         return fb;
 453 #endif
 454 }
 455
 456 static int psbfb_create(struct psb_fbdev *fbdev,
 457                                 struct drm_fb_helper_surface_size *sizes)
 458 {
 459         struct drm_device *dev = fbdev->psb_fb_helper.dev;
 460         struct drm_psb_private *dev_priv = dev->dev_private;
 461         struct psb_gtt *pg = dev_priv->pg;
 462         struct fb_info *info;
 463         struct drm_framebuffer *fb;
 464         struct psb_framebuffer *psbfb;
 465         struct drm_mode_fb_cmd mode_cmd;
 466         struct device *device = &dev->pdev->dev;
 467
 468         struct ttm_buffer_object *fbo = NULL;
 469         int size, aligned_size;
 470         int ret;
 471
 472         mode_cmd.width = sizes->surface_width;
 473         mode_cmd.height = sizes->surface_height;
 474
 475         mode_cmd.bpp = 32;
 476         /* HW requires pitch to be 64 byte aligned */
 477         mode_cmd.pitch =  ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64);
 478         mode_cmd.depth = 24;
 479
 480         size = mode_cmd.pitch * mode_cmd.height;
 481         aligned_size = ALIGN(size, PAGE_SIZE);
 482
 483         mutex_lock(&dev->struct_mutex);
 484         fb = psb_framebuffer_create(dev, &mode_cmd, fbo);
 485         if (!fb) {
 486                 DRM_ERROR("failed to allocate fb.\n");
 487                 ret = -ENOMEM;
 488                 goto out_err1;
 489         }
 490         psbfb = to_psb_fb(fb);
 491         psbfb->size = size;
 492
 493         info = framebuffer_alloc(sizeof(struct psb_fbdev), device);
 494         if (!info) {
 495                 ret = -ENOMEM;
 496                 goto out_err0;
 497         }
 498
 499         info->par = fbdev;
 500
 501         psbfb->fbdev = info;
 502
 503         fbdev->psb_fb_helper.fb = fb;
 504         fbdev->psb_fb_helper.fbdev = info;
 505         fbdev->pfb = psbfb;
 506
 507         strcpy(info->fix.id, "psbfb");
 508
 509         info->flags = FBINFO_DEFAULT;
 510         info->fbops = &psbfb_ops;
 511         info->fix.smem_start = dev->mode_config.fb_base;
 512         info->fix.smem_len = size;
 513         info->screen_base = (char *)pg->vram_addr;
 514         info->screen_size = size;
 515         memset(info->screen_base, 0, size);
 516
 517         drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
 518         drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
 519                                 sizes->fb_width, sizes->fb_height);
 520
 521         info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
 522         info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
 523
 524         info->pixmap.size = 64 * 1024;
 525         info->pixmap.buf_align = 8;
 526         info->pixmap.access_align = 32;
 527         info->pixmap.flags = FB_PIXMAP_SYSTEM;
 528         info->pixmap.scan_align = 1;
 529
 530         DRM_DEBUG("fb depth is %d\n", fb->depth);
 531         DRM_DEBUG("   pitch is %d\n", fb->pitch);
 532
 533         printk(KERN_INFO"allocated %dx%d fb\n",
 534                                 psbfb->base.width, psbfb->base.height);
 535
 536         mutex_unlock(&dev->struct_mutex);
 537
 538         return 0;
 539 out_err0:
 540         fb->funcs->destroy(fb);
 541 out_err1:
 542         mutex_unlock(&dev->struct_mutex);
 543         return ret;
 544 }
 545
 546 static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 547                                                         u16 blue, int regno)
 548 {
 549         DRM_DEBUG("%s\n", __func__);
 550 }
 551
 552 static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red,
 553                                         u16 *green, u16 *blue, int regno)
 554 {
 555         DRM_DEBUG("%s\n", __func__);
 556 }
 557
 558 static int psbfb_probe(struct drm_fb_helper *helper,
 559                                 struct drm_fb_helper_surface_size *sizes)
 560 {
 561         struct psb_fbdev *psb_fbdev = (struct psb_fbdev *)helper;
 562         int new_fb = 0;
 563         int ret;
 564
 565         DRM_DEBUG("%s\n", __func__);
 566
 567         if (!helper->fb) {
 568                 ret = psbfb_create(psb_fbdev, sizes);
 569                 if (ret)
 570                         return ret;
 571                 new_fb = 1;
 572         }
 573         return new_fb;
 574 }
 575
 576 struct drm_fb_helper_funcs psb_fb_helper_funcs = {
 577         .gamma_set = psbfb_gamma_set,
 578         .gamma_get = psbfb_gamma_get,
 579         .fb_probe = psbfb_probe,
 580 };
 581
 582 int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev)
 583 {
 584         struct fb_info *info;
 585         struct psb_framebuffer *psbfb = fbdev->pfb;
 586
 587         if (fbdev->psb_fb_helper.fbdev) {
 588                 info = fbdev->psb_fb_helper.fbdev;
 589                 unregister_framebuffer(info);
 590                 iounmap(info->screen_base);
 591                 framebuffer_release(info);
 592         }
 593
 594         drm_fb_helper_fini(&fbdev->psb_fb_helper);
 595
 596         drm_framebuffer_cleanup(&psbfb->base);
 597
 598         return 0;
 599 }
 600
 601 int psb_fbdev_init(struct drm_device *dev)
 602 {
 603         struct psb_fbdev *fbdev;
 604         struct drm_psb_private *dev_priv = dev->dev_private;
 605         int num_crtc;
 606
 607         fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL);
 608         if (!fbdev) {
 609                 DRM_ERROR("no memory\n");
 610                 return -ENOMEM;
 611         }
 612
 613         dev_priv->fbdev = fbdev;
 614         fbdev->psb_fb_helper.funcs = &psb_fb_helper_funcs;
 615
 616         num_crtc = 2;
 617
 618         drm_fb_helper_init(dev, &fbdev->psb_fb_helper, num_crtc,
 619                                                         INTELFB_CONN_LIMIT);
 620
 621         drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper);
 622         drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32);
 623         return 0;
 624 }
 625
 626 void psb_fbdev_fini(struct drm_device *dev)
 627 {
 628         struct drm_psb_private *dev_priv = dev->dev_private;
 629
 630         if (!dev_priv->fbdev)
 631                 return;
 632
 633         psb_fbdev_destroy(dev, dev_priv->fbdev);
 634         kfree(dev_priv->fbdev);
 635         dev_priv->fbdev = NULL;
 636 }
 637
 638
 639 static void psbfb_output_poll_changed(struct drm_device *dev)
 640 {
 641         struct drm_psb_private *dev_priv = dev->dev_private;
 642         struct psb_fbdev *fbdev = (struct psb_fbdev *)dev_priv->fbdev;
 643         drm_fb_helper_hotplug_event(&fbdev->psb_fb_helper);
 644 }
 645
 646 int psbfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
 647 {
 648         struct fb_info *info;
 649         struct psb_framebuffer *psbfb = to_psb_fb(fb);
 650
 651         if (drm_psb_no_fb)
 652                 return 0;
 653
 654         info = psbfb->fbdev;
 655         psbfb->pvrBO = NULL;
 656
 657         if (info)
 658                 framebuffer_release(info);
 659         return 0;
 660 }
 661 /*EXPORT_SYMBOL(psbfb_remove); */
 662
 663 static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
 664                                               struct drm_file *file_priv,
 665                                               unsigned int *handle)
 666 {
 667         /* JB: TODO currently we can't go from a bo to a handle with ttm */
 668         (void) file_priv;
 669         *handle = 0;
 670         return 0;
 671 }
 672
 673 static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb)
 674 {
 675         struct drm_device *dev = fb->dev;
 676         struct psb_framebuffer *psbfb = to_psb_fb(fb);
 677
 678         /*ummap gtt pages*/
 679         psb_gtt_unmap_meminfo(dev, psbfb->hKernelMemInfo);
 680         if (psbfb->fbdev)
 681                 psbfb_remove(dev, fb);
 682
 683         /* JB: TODO not drop, refcount buffer */
 684         drm_framebuffer_cleanup(fb);
 685         kfree(fb);
 686 }
 687
 688 static const struct drm_mode_config_funcs psb_mode_funcs = {
 689         .fb_create = psb_user_framebuffer_create,
 690         .output_poll_changed = psbfb_output_poll_changed,
 691 };
 692
 693 static int psb_create_backlight_property(struct drm_device *dev)
 694 {
 695         struct drm_psb_private *dev_priv
 696                                 = (struct drm_psb_private *) dev->dev_private;
 697         struct drm_property *backlight;
 698
 699         if (dev_priv->backlight_property)
 700                 return 0;
 701
 702         backlight = drm_property_create(dev,
 703                                         DRM_MODE_PROP_RANGE,
 704                                         "backlight",
 705                                         2);
 706         backlight->values[0] = 0;
 707         backlight->values[1] = 100;
 708
 709         dev_priv->backlight_property = backlight;
 710
 711         return 0;
 712 }
 713
 714 static void psb_setup_outputs(struct drm_device *dev)
 715 {
 716         struct drm_psb_private *dev_priv =
 717             (struct drm_psb_private *) dev->dev_private;
 718         struct drm_connector *connector;
 719
 720         PSB_DEBUG_ENTRY("\n");
 721
 722         drm_mode_create_scaling_mode_property(dev);
 723
 724         psb_create_backlight_property(dev);
 725
 726         if (IS_MRST(dev)) {
 727                 if (dev_priv->iLVDS_enable)
 728                         mrst_lvds_init(dev, &dev_priv->mode_dev);
 729                 else
 730                         DRM_ERROR("DSI is not supported\n");
 731         } else {
 732                 psb_intel_lvds_init(dev, &dev_priv->mode_dev);
 733                 psb_intel_sdvo_init(dev, SDVOB);
 734         }
 735
 736         list_for_each_entry(connector, &dev->mode_config.connector_list,
 737                             head) {
 738                 struct psb_intel_output *psb_intel_output =
 739                     to_psb_intel_output(connector);
 740                 struct drm_encoder *encoder = &psb_intel_output->enc;
 741                 int crtc_mask = 0, clone_mask = 0;
 742
 743                 /* valid crtcs */
 744                 switch (psb_intel_output->type) {
 745                 case INTEL_OUTPUT_SDVO:
 746                         crtc_mask = ((1 << 0) | (1 << 1));
 747                         clone_mask = (1 << INTEL_OUTPUT_SDVO);
 748                         break;
 749                 case INTEL_OUTPUT_LVDS:
 750                         PSB_DEBUG_ENTRY("LVDS.\n");
 751                         if (IS_MRST(dev))
 752                                 crtc_mask = (1 << 0);
 753                         else
 754                                 crtc_mask = (1 << 1);
 755                         clone_mask = (1 << INTEL_OUTPUT_LVDS);
 756                         break;
 757                 case INTEL_OUTPUT_MIPI:
 758                         PSB_DEBUG_ENTRY("MIPI.\n");
 759                         crtc_mask = (1 << 0);
 760                         clone_mask = (1 << INTEL_OUTPUT_MIPI);
 761                         break;
 762                 case INTEL_OUTPUT_MIPI2:
 763                         PSB_DEBUG_ENTRY("MIPI2.\n");
 764                         crtc_mask = (1 << 2);
 765                         clone_mask = (1 << INTEL_OUTPUT_MIPI2);
 766                         break;
 767                 case INTEL_OUTPUT_HDMI:
 768                         PSB_DEBUG_ENTRY("HDMI.\n");
 769                         crtc_mask = (1 << 1);
 770                         clone_mask = (1 << INTEL_OUTPUT_HDMI);
 771                         break;
 772                 }
 773
 774                 encoder->possible_crtcs = crtc_mask;
 775                 encoder->possible_clones =
 776                     psb_intel_connector_clones(dev, clone_mask);
 777
 778         }
 779 }
 780
 781 static void *psb_bo_from_handle(struct drm_device *dev,
 782                                 struct drm_file *file_priv,
 783                                 unsigned int handle)
 784 {
 785         void *psKernelMemInfo = NULL;
 786         void * hKernelMemInfo = (void *)handle;
 787         int ret;
 788
 789         ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
 790         if (ret) {
 791                 DRM_ERROR("Cannot get meminfo for handle 0x%x\n",
 792                           (u32)hKernelMemInfo);
 793                 return NULL;
 794         }
 795
 796         return (void *)psKernelMemInfo;
 797 }
 798
 799 static size_t psb_bo_size(struct drm_device *dev, void *bof)
 800 {
 801 #if 0
 802         void *psKernelMemInfo   = (void *)bof;
 803         return (size_t)psKernelMemInfo->ui32AllocSize;
 804 #else
 805         return 0;
 806 #endif
 807 }
 808
 809 static size_t psb_bo_offset(struct drm_device *dev, void *bof)
 810 {
 811         struct psb_framebuffer *psbfb
 812                 = (struct psb_framebuffer *)bof;
 813
 814         return (size_t)psbfb->offset;
 815 }
 816
 817 static int psb_bo_pin_for_scanout(struct drm_device *dev, void *bo)
 818 {
 819          return 0;
 820 }
 821
 822 static int psb_bo_unpin_for_scanout(struct drm_device *dev, void *bo)
 823 {
 824         return 0;
 825 }
 826
 827 void psb_modeset_init(struct drm_device *dev)
 828 {
 829         struct drm_psb_private *dev_priv =
 830             (struct drm_psb_private *) dev->dev_private;
 831         struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
 832         int i;
 833
 834         PSB_DEBUG_ENTRY("\n");
 835         /* Init mm functions */
 836         mode_dev->bo_from_handle = psb_bo_from_handle;
 837         mode_dev->bo_size = psb_bo_size;
 838         mode_dev->bo_offset = psb_bo_offset;
 839         mode_dev->bo_pin_for_scanout = psb_bo_pin_for_scanout;
 840         mode_dev->bo_unpin_for_scanout = psb_bo_unpin_for_scanout;
 841
 842         drm_mode_config_init(dev);
 843
 844         dev->mode_config.min_width = 0;
 845         dev->mode_config.min_height = 0;
 846
 847         dev->mode_config.funcs = (void *) &psb_mode_funcs;
 848
 849         /* set memory base */
 850         /* MRST and PSB should use BAR 2*/
 851         pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *)
 852                                         &(dev->mode_config.fb_base));
 853
 854         /* num pipes is 2 for PSB but 1 for Mrst */
 855         for (i = 0; i < dev_priv->num_pipe; i++)
 856                 psb_intel_crtc_init(dev, i, mode_dev);
 857
 858         dev->mode_config.max_width = 2048;
 859         dev->mode_config.max_height = 2048;
 860
 861         psb_setup_outputs(dev);
 862
 863         /* setup fbs */
 864         /* drm_initial_config(dev); */
 865 }
 866
 867 void psb_modeset_cleanup(struct drm_device *dev)
 868 {
 869         mutex_lock(&dev->struct_mutex);
 870
 871         drm_kms_helper_poll_fini(dev);
 872         psb_fbdev_fini(dev);
 873
 874         drm_mode_config_cleanup(dev);
 875
 876         mutex_unlock(&dev->struct_mutex);
 877 }