drivers/media/platform/omap/omap_vout.c

   1 /*
   2  * omap_vout.c
   3  *
   4  * Copyright (C) 2005-2010 Texas Instruments.
   5  *
   6  * This file is licensed under the terms of the GNU General Public License
   7  * version 2. This program is licensed "as is" without any warranty of any
   8  * kind, whether express or implied.
   9  *
  10  * Leveraged code from the OMAP2 camera driver
  11  * Video-for-Linux (Version 2) camera capture driver for
  12  * the OMAP24xx camera controller.
  13  *
  14  * Author: Andy Lowe (source@mvista.com)
  15  *
  16  * Copyright (C) 2004 MontaVista Software, Inc.
  17  * Copyright (C) 2010 Texas Instruments.
  18  *
  19  * History:
  20  * 20-APR-2006 Khasim           Modified VRFB based Rotation,
  21  *                              The image data is always read from 0 degree
  22  *                              view and written
  23  *                              to the virtual space of desired rotation angle
  24  * 4-DEC-2006  Jian             Changed to support better memory management
  25  *
  26  * 17-Nov-2008 Hardik           Changed driver to use video_ioctl2
  27  *
  28  * 23-Feb-2010 Vaibhav H        Modified to use new DSS2 interface
  29  *
  30  */
  31
  32 #include <linux/init.h>
  33 #include <linux/module.h>
  34 #include <linux/vmalloc.h>
  35 #include <linux/sched.h>
  36 #include <linux/types.h>
  37 #include <linux/platform_device.h>
  38 #include <linux/irq.h>
  39 #include <linux/videodev2.h>
  40 #include <linux/dma-mapping.h>
  41 #include <linux/slab.h>
  42
  43 #include <media/videobuf-dma-contig.h>
  44 #include <media/v4l2-device.h>
  45 #include <media/v4l2-ioctl.h>
  46
  47 #include <plat/dma.h>
  48 #include <plat/vrfb.h>
  49 #include <video/omapdss.h>
  50
  51 #include "omap_voutlib.h"
  52 #include "omap_voutdef.h"
  53 #include "omap_vout_vrfb.h"
  54
  55 MODULE_AUTHOR("Texas Instruments");
  56 MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
  57 MODULE_LICENSE("GPL");
  58
  59 /* Driver Configuration macros */
  60 #define VOUT_NAME               "omap_vout"
  61
  62 enum omap_vout_channels {
  63         OMAP_VIDEO1,
  64         OMAP_VIDEO2,
  65 };
  66
  67 static struct videobuf_queue_ops video_vbq_ops;
  68 /* Variables configurable through module params*/
  69 static u32 video1_numbuffers = 3;
  70 static u32 video2_numbuffers = 3;
  71 static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
  72 static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
  73 static bool vid1_static_vrfb_alloc;
  74 static bool vid2_static_vrfb_alloc;
  75 static bool debug;
  76
  77 /* Module parameters */
  78 module_param(video1_numbuffers, uint, S_IRUGO);
  79 MODULE_PARM_DESC(video1_numbuffers,
  80         "Number of buffers to be allocated at init time for Video1 device.");
  81
  82 module_param(video2_numbuffers, uint, S_IRUGO);
  83 MODULE_PARM_DESC(video2_numbuffers,
  84         "Number of buffers to be allocated at init time for Video2 device.");
  85
  86 module_param(video1_bufsize, uint, S_IRUGO);
  87 MODULE_PARM_DESC(video1_bufsize,
  88         "Size of the buffer to be allocated for video1 device");
  89
  90 module_param(video2_bufsize, uint, S_IRUGO);
  91 MODULE_PARM_DESC(video2_bufsize,
  92         "Size of the buffer to be allocated for video2 device");
  93
  94 module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
  95 MODULE_PARM_DESC(vid1_static_vrfb_alloc,
  96         "Static allocation of the VRFB buffer for video1 device");
  97
  98 module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
  99 MODULE_PARM_DESC(vid2_static_vrfb_alloc,
 100         "Static allocation of the VRFB buffer for video2 device");
 101
 102 module_param(debug, bool, S_IRUGO);
 103 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 104
 105 /* list of image formats supported by OMAP2 video pipelines */
 106 static const struct v4l2_fmtdesc omap_formats[] = {
 107         {
 108                 /* Note:  V4L2 defines RGB565 as:
 109                  *
 110                  *      Byte 0                    Byte 1
 111                  *      g2 g1 g0 r4 r3 r2 r1 r0   b4 b3 b2 b1 b0 g5 g4 g3
 112                  *
 113                  * We interpret RGB565 as:
 114                  *
 115                  *      Byte 0                    Byte 1
 116                  *      g2 g1 g0 b4 b3 b2 b1 b0   r4 r3 r2 r1 r0 g5 g4 g3
 117                  */
 118                 .description = "RGB565, le",
 119                 .pixelformat = V4L2_PIX_FMT_RGB565,
 120         },
 121         {
 122                 /* Note:  V4L2 defines RGB32 as: RGB-8-8-8-8  we use
 123                  *  this for RGB24 unpack mode, the last 8 bits are ignored
 124                  * */
 125                 .description = "RGB32, le",
 126                 .pixelformat = V4L2_PIX_FMT_RGB32,
 127         },
 128         {
 129                 /* Note:  V4L2 defines RGB24 as: RGB-8-8-8  we use
 130                  *        this for RGB24 packed mode
 131                  *
 132                  */
 133                 .description = "RGB24, le",
 134                 .pixelformat = V4L2_PIX_FMT_RGB24,
 135         },
 136         {
 137                 .description = "YUYV (YUV 4:2:2), packed",
 138                 .pixelformat = V4L2_PIX_FMT_YUYV,
 139         },
 140         {
 141                 .description = "UYVY, packed",
 142                 .pixelformat = V4L2_PIX_FMT_UYVY,
 143         },
 144 };
 145
 146 #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
 147
 148 /*
 149  * Try format
 150  */
 151 static int omap_vout_try_format(struct v4l2_pix_format *pix)
 152 {
 153         int ifmt, bpp = 0;
 154
 155         pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT,
 156                                                 (u32)VID_MAX_HEIGHT);
 157         pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH);
 158
 159         for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
 160                 if (pix->pixelformat == omap_formats[ifmt].pixelformat)
 161                         break;
 162         }
 163
 164         if (ifmt == NUM_OUTPUT_FORMATS)
 165                 ifmt = 0;
 166
 167         pix->pixelformat = omap_formats[ifmt].pixelformat;
 168         pix->field = V4L2_FIELD_ANY;
 169         pix->priv = 0;
 170
 171         switch (pix->pixelformat) {
 172         case V4L2_PIX_FMT_YUYV:
 173         case V4L2_PIX_FMT_UYVY:
 174         default:
 175                 pix->colorspace = V4L2_COLORSPACE_JPEG;
 176                 bpp = YUYV_BPP;
 177                 break;
 178         case V4L2_PIX_FMT_RGB565:
 179         case V4L2_PIX_FMT_RGB565X:
 180                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 181                 bpp = RGB565_BPP;
 182                 break;
 183         case V4L2_PIX_FMT_RGB24:
 184                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 185                 bpp = RGB24_BPP;
 186                 break;
 187         case V4L2_PIX_FMT_RGB32:
 188         case V4L2_PIX_FMT_BGR32:
 189                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 190                 bpp = RGB32_BPP;
 191                 break;
 192         }
 193         pix->bytesperline = pix->width * bpp;
 194         pix->sizeimage = pix->bytesperline * pix->height;
 195
 196         return bpp;
 197 }
 198
 199 /*
 200  * omap_vout_uservirt_to_phys: This inline function is used to convert user
 201  * space virtual address to physical address.
 202  */
 203 static u32 omap_vout_uservirt_to_phys(u32 virtp)
 204 {
 205         unsigned long physp = 0;
 206         struct vm_area_struct *vma;
 207         struct mm_struct *mm = current->mm;
 208
 209         vma = find_vma(mm, virtp);
 210         /* For kernel direct-mapped memory, take the easy way */
 211         if (virtp >= PAGE_OFFSET) {
 212                 physp = virt_to_phys((void *) virtp);
 213         } else if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) {
 214                 /* this will catch, kernel-allocated, mmaped-to-usermode
 215                    addresses */
 216                 physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start);
 217         } else {
 218                 /* otherwise, use get_user_pages() for general userland pages */
 219                 int res, nr_pages = 1;
 220                 struct page *pages;
 221                 down_read(&current->mm->mmap_sem);
 222
 223                 res = get_user_pages(current, current->mm, virtp, nr_pages, 1,
 224                                 0, &pages, NULL);
 225                 up_read(&current->mm->mmap_sem);
 226
 227                 if (res == nr_pages) {
 228                         physp =  __pa(page_address(&pages[0]) +
 229                                         (virtp & ~PAGE_MASK));
 230                 } else {
 231                         printk(KERN_WARNING VOUT_NAME
 232                                         "get_user_pages failed\n");
 233                         return 0;
 234                 }
 235         }
 236
 237         return physp;
 238 }
 239
 240 /*
 241  * Free the V4L2 buffers
 242  */
 243 void omap_vout_free_buffers(struct omap_vout_device *vout)
 244 {
 245         int i, numbuffers;
 246
 247         /* Allocate memory for the buffers */
 248         numbuffers = (vout->vid) ?  video2_numbuffers : video1_numbuffers;
 249         vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize;
 250
 251         for (i = 0; i < numbuffers; i++) {
 252                 omap_vout_free_buffer(vout->buf_virt_addr[i],
 253                                 vout->buffer_size);
 254                 vout->buf_phy_addr[i] = 0;
 255                 vout->buf_virt_addr[i] = 0;
 256         }
 257 }
 258
 259 /*
 260  * Convert V4L2 rotation to DSS rotation
 261  *      V4L2 understand 0, 90, 180, 270.
 262  *      Convert to 0, 1, 2 and 3 respectively for DSS
 263  */
 264 static int v4l2_rot_to_dss_rot(int v4l2_rotation,
 265                         enum dss_rotation *rotation, bool mirror)
 266 {
 267         int ret = 0;
 268
 269         switch (v4l2_rotation) {
 270         case 90:
 271                 *rotation = dss_rotation_90_degree;
 272                 break;
 273         case 180:
 274                 *rotation = dss_rotation_180_degree;
 275                 break;
 276         case 270:
 277                 *rotation = dss_rotation_270_degree;
 278                 break;
 279         case 0:
 280                 *rotation = dss_rotation_0_degree;
 281                 break;
 282         default:
 283                 ret = -EINVAL;
 284         }
 285         return ret;
 286 }
 287
 288 static int omap_vout_calculate_offset(struct omap_vout_device *vout)
 289 {
 290         struct omapvideo_info *ovid;
 291         struct v4l2_rect *crop = &vout->crop;
 292         struct v4l2_pix_format *pix = &vout->pix;
 293         int *cropped_offset = &vout->cropped_offset;
 294         int ps = 2, line_length = 0;
 295
 296         ovid = &vout->vid_info;
 297
 298         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 299                 omap_vout_calculate_vrfb_offset(vout);
 300         } else {
 301                 vout->line_length = line_length = pix->width;
 302
 303                 if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
 304                         V4L2_PIX_FMT_UYVY == pix->pixelformat)
 305                         ps = 2;
 306                 else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
 307                         ps = 4;
 308                 else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
 309                         ps = 3;
 310
 311                 vout->ps = ps;
 312
 313                 *cropped_offset = (line_length * ps) *
 314                         crop->top + crop->left * ps;
 315         }
 316
 317         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
 318                         __func__, vout->cropped_offset);
 319
 320         return 0;
 321 }
 322
 323 /*
 324  * Convert V4L2 pixel format to DSS pixel format
 325  */
 326 static int video_mode_to_dss_mode(struct omap_vout_device *vout)
 327 {
 328         struct omap_overlay *ovl;
 329         struct omapvideo_info *ovid;
 330         struct v4l2_pix_format *pix = &vout->pix;
 331         enum omap_color_mode mode;
 332
 333         ovid = &vout->vid_info;
 334         ovl = ovid->overlays[0];
 335
 336         switch (pix->pixelformat) {
 337         case 0:
 338                 break;
 339         case V4L2_PIX_FMT_YUYV:
 340                 mode = OMAP_DSS_COLOR_YUV2;
 341                 break;
 342         case V4L2_PIX_FMT_UYVY:
 343                 mode = OMAP_DSS_COLOR_UYVY;
 344                 break;
 345         case V4L2_PIX_FMT_RGB565:
 346                 mode = OMAP_DSS_COLOR_RGB16;
 347                 break;
 348         case V4L2_PIX_FMT_RGB24:
 349                 mode = OMAP_DSS_COLOR_RGB24P;
 350                 break;
 351         case V4L2_PIX_FMT_RGB32:
 352                 mode = (ovl->id == OMAP_DSS_VIDEO1) ?
 353                         OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
 354                 break;
 355         case V4L2_PIX_FMT_BGR32:
 356                 mode = OMAP_DSS_COLOR_RGBX32;
 357                 break;
 358         default:
 359                 mode = -EINVAL;
 360         }
 361         return mode;
 362 }
 363
 364 /*
 365  * Setup the overlay
 366  */
 367 static int omapvid_setup_overlay(struct omap_vout_device *vout,
 368                 struct omap_overlay *ovl, int posx, int posy, int outw,
 369                 int outh, u32 addr)
 370 {
 371         int ret = 0;
 372         struct omap_overlay_info info;
 373         int cropheight, cropwidth, pixheight, pixwidth;
 374
 375         if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
 376                         (outw != vout->pix.width || outh != vout->pix.height)) {
 377                 ret = -EINVAL;
 378                 goto setup_ovl_err;
 379         }
 380
 381         vout->dss_mode = video_mode_to_dss_mode(vout);
 382         if (vout->dss_mode == -EINVAL) {
 383                 ret = -EINVAL;
 384                 goto setup_ovl_err;
 385         }
 386
 387         /* Setup the input plane parameters according to
 388          * rotation value selected.
 389          */
 390         if (is_rotation_90_or_270(vout)) {
 391                 cropheight = vout->crop.width;
 392                 cropwidth = vout->crop.height;
 393                 pixheight = vout->pix.width;
 394                 pixwidth = vout->pix.height;
 395         } else {
 396                 cropheight = vout->crop.height;
 397                 cropwidth = vout->crop.width;
 398                 pixheight = vout->pix.height;
 399                 pixwidth = vout->pix.width;
 400         }
 401
 402         ovl->get_overlay_info(ovl, &info);
 403         info.paddr = addr;
 404         info.width = cropwidth;
 405         info.height = cropheight;
 406         info.color_mode = vout->dss_mode;
 407         info.mirror = vout->mirror;
 408         info.pos_x = posx;
 409         info.pos_y = posy;
 410         info.out_width = outw;
 411         info.out_height = outh;
 412         info.global_alpha = vout->win.global_alpha;
 413         if (!is_rotation_enabled(vout)) {
 414                 info.rotation = 0;
 415                 info.rotation_type = OMAP_DSS_ROT_DMA;
 416                 info.screen_width = pixwidth;
 417         } else {
 418                 info.rotation = vout->rotation;
 419                 info.rotation_type = OMAP_DSS_ROT_VRFB;
 420                 info.screen_width = 2048;
 421         }
 422
 423         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 424                 "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n"
 425                 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
 426                 "out_height=%d rotation_type=%d screen_width=%d\n",
 427                 __func__, ovl->is_enabled(ovl), info.paddr, info.width, info.height,
 428                 info.color_mode, info.rotation, info.mirror, info.pos_x,
 429                 info.pos_y, info.out_width, info.out_height, info.rotation_type,
 430                 info.screen_width);
 431
 432         ret = ovl->set_overlay_info(ovl, &info);
 433         if (ret)
 434                 goto setup_ovl_err;
 435
 436         return 0;
 437
 438 setup_ovl_err:
 439         v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
 440         return ret;
 441 }
 442
 443 /*
 444  * Initialize the overlay structure
 445  */
 446 static int omapvid_init(struct omap_vout_device *vout, u32 addr)
 447 {
 448         int ret = 0, i;
 449         struct v4l2_window *win;
 450         struct omap_overlay *ovl;
 451         int posx, posy, outw, outh, temp;
 452         struct omap_video_timings *timing;
 453         struct omapvideo_info *ovid = &vout->vid_info;
 454
 455         win = &vout->win;
 456         for (i = 0; i < ovid->num_overlays; i++) {
 457                 ovl = ovid->overlays[i];
 458                 if (!ovl->manager || !ovl->manager->device)
 459                         return -EINVAL;
 460
 461                 timing = &ovl->manager->device->panel.timings;
 462
 463                 outw = win->w.width;
 464                 outh = win->w.height;
 465                 switch (vout->rotation) {
 466                 case dss_rotation_90_degree:
 467                         /* Invert the height and width for 90
 468                          * and 270 degree rotation
 469                          */
 470                         temp = outw;
 471                         outw = outh;
 472                         outh = temp;
 473                         posy = (timing->y_res - win->w.width) - win->w.left;
 474                         posx = win->w.top;
 475                         break;
 476
 477                 case dss_rotation_180_degree:
 478                         posx = (timing->x_res - win->w.width) - win->w.left;
 479                         posy = (timing->y_res - win->w.height) - win->w.top;
 480                         break;
 481
 482                 case dss_rotation_270_degree:
 483                         temp = outw;
 484                         outw = outh;
 485                         outh = temp;
 486                         posy = win->w.left;
 487                         posx = (timing->x_res - win->w.height) - win->w.top;
 488                         break;
 489
 490                 default:
 491                         posx = win->w.left;
 492                         posy = win->w.top;
 493                         break;
 494                 }
 495
 496                 ret = omapvid_setup_overlay(vout, ovl, posx, posy,
 497                                 outw, outh, addr);
 498                 if (ret)
 499                         goto omapvid_init_err;
 500         }
 501         return 0;
 502
 503 omapvid_init_err:
 504         v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
 505         return ret;
 506 }
 507
 508 /*
 509  * Apply the changes set the go bit of DSS
 510  */
 511 static int omapvid_apply_changes(struct omap_vout_device *vout)
 512 {
 513         int i;
 514         struct omap_overlay *ovl;
 515         struct omapvideo_info *ovid = &vout->vid_info;
 516
 517         for (i = 0; i < ovid->num_overlays; i++) {
 518                 ovl = ovid->overlays[i];
 519                 if (!ovl->manager || !ovl->manager->device)
 520                         return -EINVAL;
 521                 ovl->manager->apply(ovl->manager);
 522         }
 523
 524         return 0;
 525 }
 526
 527 static int omapvid_handle_interlace_display(struct omap_vout_device *vout,
 528                 unsigned int irqstatus, struct timeval timevalue)
 529 {
 530         u32 fid;
 531
 532         if (vout->first_int) {
 533                 vout->first_int = 0;
 534                 goto err;
 535         }
 536
 537         if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
 538                 fid = 1;
 539         else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
 540                 fid = 0;
 541         else
 542                 goto err;
 543
 544         vout->field_id ^= 1;
 545         if (fid != vout->field_id) {
 546                 if (fid == 0)
 547                         vout->field_id = fid;
 548         } else if (0 == fid) {
 549                 if (vout->cur_frm == vout->next_frm)
 550                         goto err;
 551
 552                 vout->cur_frm->ts = timevalue;
 553                 vout->cur_frm->state = VIDEOBUF_DONE;
 554                 wake_up_interruptible(&vout->cur_frm->done);
 555                 vout->cur_frm = vout->next_frm;
 556         } else {
 557                 if (list_empty(&vout->dma_queue) ||
 558                                 (vout->cur_frm != vout->next_frm))
 559                         goto err;
 560         }
 561
 562         return vout->field_id;
 563 err:
 564         return 0;
 565 }
 566
 567 static void omap_vout_isr(void *arg, unsigned int irqstatus)
 568 {
 569         int ret, fid, mgr_id;
 570         u32 addr, irq;
 571         struct omap_overlay *ovl;
 572         struct timeval timevalue;
 573         struct omapvideo_info *ovid;
 574         struct omap_dss_device *cur_display;
 575         struct omap_vout_device *vout = (struct omap_vout_device *)arg;
 576
 577         if (!vout->streaming)
 578                 return;
 579
 580         ovid = &vout->vid_info;
 581         ovl = ovid->overlays[0];
 582         /* get the display device attached to the overlay */
 583         if (!ovl->manager || !ovl->manager->device)
 584                 return;
 585
 586         mgr_id = ovl->manager->id;
 587         cur_display = ovl->manager->device;
 588
 589         spin_lock(&vout->vbq_lock);
 590         do_gettimeofday(&timevalue);
 591
 592         switch (cur_display->type) {
 593         case OMAP_DISPLAY_TYPE_DSI:
 594         case OMAP_DISPLAY_TYPE_DPI:
 595                 if (mgr_id == OMAP_DSS_CHANNEL_LCD)
 596                         irq = DISPC_IRQ_VSYNC;
 597                 else if (mgr_id == OMAP_DSS_CHANNEL_LCD2)
 598                         irq = DISPC_IRQ_VSYNC2;
 599                 else
 600                         goto vout_isr_err;
 601
 602                 if (!(irqstatus & irq))
 603                         goto vout_isr_err;
 604                 break;
 605         case OMAP_DISPLAY_TYPE_VENC:
 606                 fid = omapvid_handle_interlace_display(vout, irqstatus,
 607                                 timevalue);
 608                 if (!fid)
 609                         goto vout_isr_err;
 610                 break;
 611         case OMAP_DISPLAY_TYPE_HDMI:
 612                 if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
 613                         goto vout_isr_err;
 614                 break;
 615         default:
 616                 goto vout_isr_err;
 617         }
 618
 619         if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
 620                 vout->cur_frm->ts = timevalue;
 621                 vout->cur_frm->state = VIDEOBUF_DONE;
 622                 wake_up_interruptible(&vout->cur_frm->done);
 623                 vout->cur_frm = vout->next_frm;
 624         }
 625
 626         vout->first_int = 0;
 627         if (list_empty(&vout->dma_queue))
 628                 goto vout_isr_err;
 629
 630         vout->next_frm = list_entry(vout->dma_queue.next,
 631                         struct videobuf_buffer, queue);
 632         list_del(&vout->next_frm->queue);
 633
 634         vout->next_frm->state = VIDEOBUF_ACTIVE;
 635
 636         addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
 637                 + vout->cropped_offset;
 638
 639         /* First save the configuration in ovelray structure */
 640         ret = omapvid_init(vout, addr);
 641         if (ret)
 642                 printk(KERN_ERR VOUT_NAME
 643                         "failed to set overlay info\n");
 644         /* Enable the pipeline and set the Go bit */
 645         ret = omapvid_apply_changes(vout);
 646         if (ret)
 647                 printk(KERN_ERR VOUT_NAME "failed to change mode\n");
 648
 649 vout_isr_err:
 650         spin_unlock(&vout->vbq_lock);
 651 }
 652
 653 /* Video buffer call backs */
 654
 655 /*
 656  * Buffer setup function is called by videobuf layer when REQBUF ioctl is
 657  * called. This is used to setup buffers and return size and count of
 658  * buffers allocated. After the call to this buffer, videobuf layer will
 659  * setup buffer queue depending on the size and count of buffers
 660  */
 661 static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
 662                           unsigned int *size)
 663 {
 664         int startindex = 0, i, j;
 665         u32 phy_addr = 0, virt_addr = 0;
 666         struct omap_vout_device *vout = q->priv_data;
 667         struct omapvideo_info *ovid = &vout->vid_info;
 668         int vid_max_buf_size;
 669
 670         if (!vout)
 671                 return -EINVAL;
 672
 673         vid_max_buf_size = vout->vid == OMAP_VIDEO1 ? video1_bufsize :
 674                 video2_bufsize;
 675
 676         if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
 677                 return -EINVAL;
 678
 679         startindex = (vout->vid == OMAP_VIDEO1) ?
 680                 video1_numbuffers : video2_numbuffers;
 681         if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
 682                 *count = startindex;
 683
 684         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 685                 if (omap_vout_vrfb_buffer_setup(vout, count, startindex))
 686                         return -ENOMEM;
 687         }
 688
 689         if (V4L2_MEMORY_MMAP != vout->memory)
 690                 return 0;
 691
 692         /* Now allocated the V4L2 buffers */
 693         *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp);
 694         startindex = (vout->vid == OMAP_VIDEO1) ?
 695                 video1_numbuffers : video2_numbuffers;
 696
 697         /* Check the size of the buffer */
 698         if (*size > vid_max_buf_size) {
 699                 v4l2_err(&vout->vid_dev->v4l2_dev,
 700                                 "buffer allocation mismatch [%u] [%u]\n",
 701                                 *size, vout->buffer_size);
 702                 return -ENOMEM;
 703         }
 704
 705         for (i = startindex; i < *count; i++) {
 706                 vout->buffer_size = *size;
 707
 708                 virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
 709                                 &phy_addr);
 710                 if (!virt_addr) {
 711                         if (ovid->rotation_type == VOUT_ROT_NONE) {
 712                                 break;
 713                         } else {
 714                                 if (!is_rotation_enabled(vout))
 715                                         break;
 716                         /* Free the VRFB buffers if no space for V4L2 buffers */
 717                         for (j = i; j < *count; j++) {
 718                                 omap_vout_free_buffer(
 719                                                 vout->smsshado_virt_addr[j],
 720                                                 vout->smsshado_size);
 721                                 vout->smsshado_virt_addr[j] = 0;
 722                                 vout->smsshado_phy_addr[j] = 0;
 723                                 }
 724                         }
 725                 }
 726                 vout->buf_virt_addr[i] = virt_addr;
 727                 vout->buf_phy_addr[i] = phy_addr;
 728         }
 729         *count = vout->buffer_allocated = i;
 730
 731         return 0;
 732 }
 733
 734 /*
 735  * Free the V4L2 buffers additionally allocated than default
 736  * number of buffers
 737  */
 738 static void omap_vout_free_extra_buffers(struct omap_vout_device *vout)
 739 {
 740         int num_buffers = 0, i;
 741
 742         num_buffers = (vout->vid == OMAP_VIDEO1) ?
 743                 video1_numbuffers : video2_numbuffers;
 744
 745         for (i = num_buffers; i < vout->buffer_allocated; i++) {
 746                 if (vout->buf_virt_addr[i])
 747                         omap_vout_free_buffer(vout->buf_virt_addr[i],
 748                                         vout->buffer_size);
 749
 750                 vout->buf_virt_addr[i] = 0;
 751                 vout->buf_phy_addr[i] = 0;
 752         }
 753         vout->buffer_allocated = num_buffers;
 754 }
 755
 756 /*
 757  * This function will be called when VIDIOC_QBUF ioctl is called.
 758  * It prepare buffers before give out for the display. This function
 759  * converts user space virtual address into physical address if userptr memory
 760  * exchange mechanism is used. If rotation is enabled, it copies entire
 761  * buffer into VRFB memory space before giving it to the DSS.
 762  */
 763 static int omap_vout_buffer_prepare(struct videobuf_queue *q,
 764                         struct videobuf_buffer *vb,
 765                         enum v4l2_field field)
 766 {
 767         struct omap_vout_device *vout = q->priv_data;
 768         struct omapvideo_info *ovid = &vout->vid_info;
 769
 770         if (VIDEOBUF_NEEDS_INIT == vb->state) {
 771                 vb->width = vout->pix.width;
 772                 vb->height = vout->pix.height;
 773                 vb->size = vb->width * vb->height * vout->bpp;
 774                 vb->field = field;
 775         }
 776         vb->state = VIDEOBUF_PREPARED;
 777         /* if user pointer memory mechanism is used, get the physical
 778          * address of the buffer
 779          */
 780         if (V4L2_MEMORY_USERPTR == vb->memory) {
 781                 if (0 == vb->baddr)
 782                         return -EINVAL;
 783                 /* Physical address */
 784                 vout->queued_buf_addr[vb->i] = (u8 *)
 785                         omap_vout_uservirt_to_phys(vb->baddr);
 786         } else {
 787                 u32 addr, dma_addr;
 788                 unsigned long size;
 789
 790                 addr = (unsigned long) vout->buf_virt_addr[vb->i];
 791                 size = (unsigned long) vb->size;
 792
 793                 dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr,
 794                                 size, DMA_TO_DEVICE);
 795                 if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr))
 796                         v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n");
 797
 798                 vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i];
 799         }
 800
 801         if (ovid->rotation_type == VOUT_ROT_VRFB)
 802                 return omap_vout_prepare_vrfb(vout, vb);
 803         else
 804                 return 0;
 805 }
 806
 807 /*
 808  * Buffer queue function will be called from the videobuf layer when _QBUF
 809  * ioctl is called. It is used to enqueue buffer, which is ready to be
 810  * displayed.
 811  */
 812 static void omap_vout_buffer_queue(struct videobuf_queue *q,
 813                           struct videobuf_buffer *vb)
 814 {
 815         struct omap_vout_device *vout = q->priv_data;
 816
 817         /* Driver is also maintainig a queue. So enqueue buffer in the driver
 818          * queue */
 819         list_add_tail(&vb->queue, &vout->dma_queue);
 820
 821         vb->state = VIDEOBUF_QUEUED;
 822 }
 823
 824 /*
 825  * Buffer release function is called from videobuf layer to release buffer
 826  * which are already allocated
 827  */
 828 static void omap_vout_buffer_release(struct videobuf_queue *q,
 829                             struct videobuf_buffer *vb)
 830 {
 831         struct omap_vout_device *vout = q->priv_data;
 832
 833         vb->state = VIDEOBUF_NEEDS_INIT;
 834
 835         if (V4L2_MEMORY_MMAP != vout->memory)
 836                 return;
 837 }
 838
 839 /*
 840  *  File operations
 841  */
 842 static unsigned int omap_vout_poll(struct file *file,
 843                                    struct poll_table_struct *wait)
 844 {
 845         struct omap_vout_device *vout = file->private_data;
 846         struct videobuf_queue *q = &vout->vbq;
 847
 848         return videobuf_poll_stream(file, q, wait);
 849 }
 850
 851 static void omap_vout_vm_open(struct vm_area_struct *vma)
 852 {
 853         struct omap_vout_device *vout = vma->vm_private_data;
 854
 855         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 856                 "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
 857         vout->mmap_count++;
 858 }
 859
 860 static void omap_vout_vm_close(struct vm_area_struct *vma)
 861 {
 862         struct omap_vout_device *vout = vma->vm_private_data;
 863
 864         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 865                 "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
 866         vout->mmap_count--;
 867 }
 868
 869 static struct vm_operations_struct omap_vout_vm_ops = {
 870         .open   = omap_vout_vm_open,
 871         .close  = omap_vout_vm_close,
 872 };
 873
 874 static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
 875 {
 876         int i;
 877         void *pos;
 878         unsigned long start = vma->vm_start;
 879         unsigned long size = (vma->vm_end - vma->vm_start);
 880         struct omap_vout_device *vout = file->private_data;
 881         struct videobuf_queue *q = &vout->vbq;
 882
 883         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 884                         " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__,
 885                         vma->vm_pgoff, vma->vm_start, vma->vm_end);
 886
 887         /* look for the buffer to map */
 888         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
 889                 if (NULL == q->bufs[i])
 890                         continue;
 891                 if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
 892                         continue;
 893                 if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
 894                         break;
 895         }
 896
 897         if (VIDEO_MAX_FRAME == i) {
 898                 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 899                                 "offset invalid [offset=0x%lx]\n",
 900                                 (vma->vm_pgoff << PAGE_SHIFT));
 901                 return -EINVAL;
 902         }
 903         /* Check the size of the buffer */
 904         if (size > vout->buffer_size) {
 905                 v4l2_err(&vout->vid_dev->v4l2_dev,
 906                                 "insufficient memory [%lu] [%u]\n",
 907                                 size, vout->buffer_size);
 908                 return -ENOMEM;
 909         }
 910
 911         q->bufs[i]->baddr = vma->vm_start;
 912
 913         vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
 914         vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 915         vma->vm_ops = &omap_vout_vm_ops;
 916         vma->vm_private_data = (void *) vout;
 917         pos = (void *)vout->buf_virt_addr[i];
 918         vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT;
 919         while (size > 0) {
 920                 unsigned long pfn;
 921                 pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
 922                 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
 923                         return -EAGAIN;
 924                 start += PAGE_SIZE;
 925                 pos += PAGE_SIZE;
 926                 size -= PAGE_SIZE;
 927         }
 928         vout->mmap_count++;
 929         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
 930
 931         return 0;
 932 }
 933
 934 static int omap_vout_release(struct file *file)
 935 {
 936         unsigned int ret, i;
 937         struct videobuf_queue *q;
 938         struct omapvideo_info *ovid;
 939         struct omap_vout_device *vout = file->private_data;
 940
 941         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
 942         ovid = &vout->vid_info;
 943
 944         if (!vout)
 945                 return 0;
 946
 947         q = &vout->vbq;
 948         /* Disable all the overlay managers connected with this interface */
 949         for (i = 0; i < ovid->num_overlays; i++) {
 950                 struct omap_overlay *ovl = ovid->overlays[i];
 951                 if (ovl->manager && ovl->manager->device)
 952                         ovl->disable(ovl);
 953         }
 954         /* Turn off the pipeline */
 955         ret = omapvid_apply_changes(vout);
 956         if (ret)
 957                 v4l2_warn(&vout->vid_dev->v4l2_dev,
 958                                 "Unable to apply changes\n");
 959
 960         /* Free all buffers */
 961         omap_vout_free_extra_buffers(vout);
 962
 963         /* Free the VRFB buffers only if they are allocated
 964          * during reqbufs.  Don't free if init time allocated
 965          */
 966         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 967                 if (!vout->vrfb_static_allocation)
 968                         omap_vout_free_vrfb_buffers(vout);
 969         }
 970         videobuf_mmap_free(q);
 971
 972         /* Even if apply changes fails we should continue
 973            freeing allocated memory */
 974         if (vout->streaming) {
 975                 u32 mask = 0;
 976
 977                 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN |
 978                         DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2;
 979                 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
 980                 vout->streaming = 0;
 981
 982                 videobuf_streamoff(q);
 983                 videobuf_queue_cancel(q);
 984         }
 985
 986         if (vout->mmap_count != 0)
 987                 vout->mmap_count = 0;
 988
 989         vout->opened -= 1;
 990         file->private_data = NULL;
 991
 992         if (vout->buffer_allocated)
 993                 videobuf_mmap_free(q);
 994
 995         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
 996         return ret;
 997 }
 998
 999 static int omap_vout_open(struct file *file)
1000 {
1001         struct videobuf_queue *q;
1002         struct omap_vout_device *vout = NULL;
1003
1004         vout = video_drvdata(file);
1005         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
1006
1007         if (vout == NULL)
1008                 return -ENODEV;
1009
1010         /* for now, we only support single open */
1011         if (vout->opened)
1012                 return -EBUSY;
1013
1014         vout->opened += 1;
1015
1016         file->private_data = vout;
1017         vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1018
1019         q = &vout->vbq;
1020         video_vbq_ops.buf_setup = omap_vout_buffer_setup;
1021         video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
1022         video_vbq_ops.buf_release = omap_vout_buffer_release;
1023         video_vbq_ops.buf_queue = omap_vout_buffer_queue;
1024         spin_lock_init(&vout->vbq_lock);
1025
1026         videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
1027                         &vout->vbq_lock, vout->type, V4L2_FIELD_NONE,
1028                         sizeof(struct videobuf_buffer), vout, NULL);
1029
1030         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1031         return 0;
1032 }
1033
1034 /*
1035  * V4L2 ioctls
1036  */
1037 static int vidioc_querycap(struct file *file, void *fh,
1038                 struct v4l2_capability *cap)
1039 {
1040         struct omap_vout_device *vout = fh;
1041
1042         strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
1043         strlcpy(cap->card, vout->vfd->name, sizeof(cap->card));
1044         cap->bus_info[0] = '\0';
1045         cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
1046                 V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
1047
1048         return 0;
1049 }
1050
1051 static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
1052                         struct v4l2_fmtdesc *fmt)
1053 {
1054         int index = fmt->index;
1055
1056         if (index >= NUM_OUTPUT_FORMATS)
1057                 return -EINVAL;
1058
1059         fmt->flags = omap_formats[index].flags;
1060         strlcpy(fmt->description, omap_formats[index].description,
1061                         sizeof(fmt->description));
1062         fmt->pixelformat = omap_formats[index].pixelformat;
1063
1064         return 0;
1065 }
1066
1067 static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
1068                         struct v4l2_format *f)
1069 {
1070         struct omap_vout_device *vout = fh;
1071
1072         f->fmt.pix = vout->pix;
1073         return 0;
1074
1075 }
1076
1077 static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
1078                         struct v4l2_format *f)
1079 {
1080         struct omap_overlay *ovl;
1081         struct omapvideo_info *ovid;
1082         struct omap_video_timings *timing;
1083         struct omap_vout_device *vout = fh;
1084
1085         ovid = &vout->vid_info;
1086         ovl = ovid->overlays[0];
1087
1088         if (!ovl->manager || !ovl->manager->device)
1089                 return -EINVAL;
1090         /* get the display device attached to the overlay */
1091         timing = &ovl->manager->device->panel.timings;
1092
1093         vout->fbuf.fmt.height = timing->y_res;
1094         vout->fbuf.fmt.width = timing->x_res;
1095
1096         omap_vout_try_format(&f->fmt.pix);
1097         return 0;
1098 }
1099
1100 static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
1101                         struct v4l2_format *f)
1102 {
1103         int ret, bpp;
1104         struct omap_overlay *ovl;
1105         struct omapvideo_info *ovid;
1106         struct omap_video_timings *timing;
1107         struct omap_vout_device *vout = fh;
1108
1109         if (vout->streaming)
1110                 return -EBUSY;
1111
1112         mutex_lock(&vout->lock);
1113
1114         ovid = &vout->vid_info;
1115         ovl = ovid->overlays[0];
1116
1117         /* get the display device attached to the overlay */
1118         if (!ovl->manager || !ovl->manager->device) {
1119                 ret = -EINVAL;
1120                 goto s_fmt_vid_out_exit;
1121         }
1122         timing = &ovl->manager->device->panel.timings;
1123
1124         /* We dont support RGB24-packed mode if vrfb rotation
1125          * is enabled*/
1126         if ((is_rotation_enabled(vout)) &&
1127                         f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1128                 ret = -EINVAL;
1129                 goto s_fmt_vid_out_exit;
1130         }
1131
1132         /* get the framebuffer parameters */
1133
1134         if (is_rotation_90_or_270(vout)) {
1135                 vout->fbuf.fmt.height = timing->x_res;
1136                 vout->fbuf.fmt.width = timing->y_res;
1137         } else {
1138                 vout->fbuf.fmt.height = timing->y_res;
1139                 vout->fbuf.fmt.width = timing->x_res;
1140         }
1141
1142         /* change to samller size is OK */
1143
1144         bpp = omap_vout_try_format(&f->fmt.pix);
1145         f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
1146
1147         /* try & set the new output format */
1148         vout->bpp = bpp;
1149         vout->pix = f->fmt.pix;
1150         vout->vrfb_bpp = 1;
1151
1152         /* If YUYV then vrfb bpp is 2, for  others its 1 */
1153         if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
1154                         V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
1155                 vout->vrfb_bpp = 2;
1156
1157         /* set default crop and win */
1158         omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
1159
1160         /* Save the changes in the overlay strcuture */
1161         ret = omapvid_init(vout, 0);
1162         if (ret) {
1163                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1164                 goto s_fmt_vid_out_exit;
1165         }
1166
1167         ret = 0;
1168
1169 s_fmt_vid_out_exit:
1170         mutex_unlock(&vout->lock);
1171         return ret;
1172 }
1173
1174 static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
1175                         struct v4l2_format *f)
1176 {
1177         int ret = 0;
1178         struct omap_vout_device *vout = fh;
1179         struct omap_overlay *ovl;
1180         struct omapvideo_info *ovid;
1181         struct v4l2_window *win = &f->fmt.win;
1182
1183         ovid = &vout->vid_info;
1184         ovl = ovid->overlays[0];
1185
1186         ret = omap_vout_try_window(&vout->fbuf, win);
1187
1188         if (!ret) {
1189                 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1190                         win->global_alpha = 255;
1191                 else
1192                         win->global_alpha = f->fmt.win.global_alpha;
1193         }
1194
1195         return ret;
1196 }
1197
1198 static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
1199                         struct v4l2_format *f)
1200 {
1201         int ret = 0;
1202         struct omap_overlay *ovl;
1203         struct omapvideo_info *ovid;
1204         struct omap_vout_device *vout = fh;
1205         struct v4l2_window *win = &f->fmt.win;
1206
1207         mutex_lock(&vout->lock);
1208         ovid = &vout->vid_info;
1209         ovl = ovid->overlays[0];
1210
1211         ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
1212         if (!ret) {
1213                 /* Video1 plane does not support global alpha on OMAP3 */
1214                 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1215                         vout->win.global_alpha = 255;
1216                 else
1217                         vout->win.global_alpha = f->fmt.win.global_alpha;
1218
1219                 vout->win.chromakey = f->fmt.win.chromakey;
1220         }
1221         mutex_unlock(&vout->lock);
1222         return ret;
1223 }
1224
1225 static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh,
1226                         struct v4l2_fmtdesc *fmt)
1227 {
1228         int index = fmt->index;
1229
1230         if (index >= NUM_OUTPUT_FORMATS)
1231                 return -EINVAL;
1232
1233         fmt->flags = omap_formats[index].flags;
1234         strlcpy(fmt->description, omap_formats[index].description,
1235                         sizeof(fmt->description));
1236         fmt->pixelformat = omap_formats[index].pixelformat;
1237         return 0;
1238 }
1239
1240 static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
1241                         struct v4l2_format *f)
1242 {
1243         u32 key_value =  0;
1244         struct omap_overlay *ovl;
1245         struct omapvideo_info *ovid;
1246         struct omap_vout_device *vout = fh;
1247         struct omap_overlay_manager_info info;
1248         struct v4l2_window *win = &f->fmt.win;
1249
1250         ovid = &vout->vid_info;
1251         ovl = ovid->overlays[0];
1252
1253         win->w = vout->win.w;
1254         win->field = vout->win.field;
1255         win->global_alpha = vout->win.global_alpha;
1256
1257         if (ovl->manager && ovl->manager->get_manager_info) {
1258                 ovl->manager->get_manager_info(ovl->manager, &info);
1259                 key_value = info.trans_key;
1260         }
1261         win->chromakey = key_value;
1262         return 0;
1263 }
1264
1265 static int vidioc_cropcap(struct file *file, void *fh,
1266                 struct v4l2_cropcap *cropcap)
1267 {
1268         struct omap_vout_device *vout = fh;
1269         struct v4l2_pix_format *pix = &vout->pix;
1270
1271         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1272                 return -EINVAL;
1273
1274         /* Width and height are always even */
1275         cropcap->bounds.width = pix->width & ~1;
1276         cropcap->bounds.height = pix->height & ~1;
1277
1278         omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect);
1279         cropcap->pixelaspect.numerator = 1;
1280         cropcap->pixelaspect.denominator = 1;
1281         return 0;
1282 }
1283
1284 static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1285 {
1286         struct omap_vout_device *vout = fh;
1287
1288         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1289                 return -EINVAL;
1290         crop->c = vout->crop;
1291         return 0;
1292 }
1293
1294 static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1295 {
1296         int ret = -EINVAL;
1297         struct omap_vout_device *vout = fh;
1298         struct omapvideo_info *ovid;
1299         struct omap_overlay *ovl;
1300         struct omap_video_timings *timing;
1301
1302         if (vout->streaming)
1303                 return -EBUSY;
1304
1305         mutex_lock(&vout->lock);
1306         ovid = &vout->vid_info;
1307         ovl = ovid->overlays[0];
1308
1309         if (!ovl->manager || !ovl->manager->device) {
1310                 ret = -EINVAL;
1311                 goto s_crop_err;
1312         }
1313         /* get the display device attached to the overlay */
1314         timing = &ovl->manager->device->panel.timings;
1315
1316         if (is_rotation_90_or_270(vout)) {
1317                 vout->fbuf.fmt.height = timing->x_res;
1318                 vout->fbuf.fmt.width = timing->y_res;
1319         } else {
1320                 vout->fbuf.fmt.height = timing->y_res;
1321                 vout->fbuf.fmt.width = timing->x_res;
1322         }
1323
1324         if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1325                 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
1326                                 &vout->fbuf, &crop->c);
1327
1328 s_crop_err:
1329         mutex_unlock(&vout->lock);
1330         return ret;
1331 }
1332
1333 static int vidioc_queryctrl(struct file *file, void *fh,
1334                 struct v4l2_queryctrl *ctrl)
1335 {
1336         int ret = 0;
1337
1338         switch (ctrl->id) {
1339         case V4L2_CID_ROTATE:
1340                 ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0);
1341                 break;
1342         case V4L2_CID_BG_COLOR:
1343                 ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0);
1344                 break;
1345         case V4L2_CID_VFLIP:
1346                 ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
1347                 break;
1348         default:
1349                 ctrl->name[0] = '\0';
1350                 ret = -EINVAL;
1351         }
1352         return ret;
1353 }
1354
1355 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
1356 {
1357         int ret = 0;
1358         struct omap_vout_device *vout = fh;
1359
1360         switch (ctrl->id) {
1361         case V4L2_CID_ROTATE:
1362                 ctrl->value = vout->control[0].value;
1363                 break;
1364         case V4L2_CID_BG_COLOR:
1365         {
1366                 struct omap_overlay_manager_info info;
1367                 struct omap_overlay *ovl;
1368
1369                 ovl = vout->vid_info.overlays[0];
1370                 if (!ovl->manager || !ovl->manager->get_manager_info) {
1371                         ret = -EINVAL;
1372                         break;
1373                 }
1374
1375                 ovl->manager->get_manager_info(ovl->manager, &info);
1376                 ctrl->value = info.default_color;
1377                 break;
1378         }
1379         case V4L2_CID_VFLIP:
1380                 ctrl->value = vout->control[2].value;
1381                 break;
1382         default:
1383                 ret = -EINVAL;
1384         }
1385         return ret;
1386 }
1387
1388 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
1389 {
1390         int ret = 0;
1391         struct omap_vout_device *vout = fh;
1392
1393         switch (a->id) {
1394         case V4L2_CID_ROTATE:
1395         {
1396                 struct omapvideo_info *ovid;
1397                 int rotation = a->value;
1398
1399                 ovid = &vout->vid_info;
1400
1401                 mutex_lock(&vout->lock);
1402                 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
1403                         mutex_unlock(&vout->lock);
1404                         ret = -ERANGE;
1405                         break;
1406                 }
1407
1408                 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1409                         mutex_unlock(&vout->lock);
1410                         ret = -EINVAL;
1411                         break;
1412                 }
1413
1414                 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
1415                                                         vout->mirror)) {
1416                         mutex_unlock(&vout->lock);
1417                         ret = -EINVAL;
1418                         break;
1419                 }
1420
1421                 vout->control[0].value = rotation;
1422                 mutex_unlock(&vout->lock);
1423                 break;
1424         }
1425         case V4L2_CID_BG_COLOR:
1426         {
1427                 struct omap_overlay *ovl;
1428                 unsigned int  color = a->value;
1429                 struct omap_overlay_manager_info info;
1430
1431                 ovl = vout->vid_info.overlays[0];
1432
1433                 mutex_lock(&vout->lock);
1434                 if (!ovl->manager || !ovl->manager->get_manager_info) {
1435                         mutex_unlock(&vout->lock);
1436                         ret = -EINVAL;
1437                         break;
1438                 }
1439
1440                 ovl->manager->get_manager_info(ovl->manager, &info);
1441                 info.default_color = color;
1442                 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
1443                         mutex_unlock(&vout->lock);
1444                         ret = -EINVAL;
1445                         break;
1446                 }
1447
1448                 vout->control[1].value = color;
1449                 mutex_unlock(&vout->lock);
1450                 break;
1451         }
1452         case V4L2_CID_VFLIP:
1453         {
1454                 struct omap_overlay *ovl;
1455                 struct omapvideo_info *ovid;
1456                 unsigned int  mirror = a->value;
1457
1458                 ovid = &vout->vid_info;
1459                 ovl = ovid->overlays[0];
1460
1461                 mutex_lock(&vout->lock);
1462                 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
1463                         mutex_unlock(&vout->lock);
1464                         ret = -ERANGE;
1465                         break;
1466                 }
1467
1468                 if (mirror  && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1469                         mutex_unlock(&vout->lock);
1470                         ret = -EINVAL;
1471                         break;
1472                 }
1473                 vout->mirror = mirror;
1474                 vout->control[2].value = mirror;
1475                 mutex_unlock(&vout->lock);
1476                 break;
1477         }
1478         default:
1479                 ret = -EINVAL;
1480         }
1481         return ret;
1482 }
1483
1484 static int vidioc_reqbufs(struct file *file, void *fh,
1485                         struct v4l2_requestbuffers *req)
1486 {
1487         int ret = 0;
1488         unsigned int i, num_buffers = 0;
1489         struct omap_vout_device *vout = fh;
1490         struct videobuf_queue *q = &vout->vbq;
1491
1492         if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0))
1493                 return -EINVAL;
1494         /* if memory is not mmp or userptr
1495            return error */
1496         if ((V4L2_MEMORY_MMAP != req->memory) &&
1497                         (V4L2_MEMORY_USERPTR != req->memory))
1498                 return -EINVAL;
1499
1500         mutex_lock(&vout->lock);
1501         /* Cannot be requested when streaming is on */
1502         if (vout->streaming) {
1503                 ret = -EBUSY;
1504                 goto reqbuf_err;
1505         }
1506
1507         /* If buffers are already allocated free them */
1508         if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
1509                 if (vout->mmap_count) {
1510                         ret = -EBUSY;
1511                         goto reqbuf_err;
1512                 }
1513                 num_buffers = (vout->vid == OMAP_VIDEO1) ?
1514                         video1_numbuffers : video2_numbuffers;
1515                 for (i = num_buffers; i < vout->buffer_allocated; i++) {
1516                         omap_vout_free_buffer(vout->buf_virt_addr[i],
1517                                         vout->buffer_size);
1518                         vout->buf_virt_addr[i] = 0;
1519                         vout->buf_phy_addr[i] = 0;
1520                 }
1521                 vout->buffer_allocated = num_buffers;
1522                 videobuf_mmap_free(q);
1523         } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
1524                 if (vout->buffer_allocated) {
1525                         videobuf_mmap_free(q);
1526                         for (i = 0; i < vout->buffer_allocated; i++) {
1527                                 kfree(q->bufs[i]);
1528                                 q->bufs[i] = NULL;
1529                         }
1530                         vout->buffer_allocated = 0;
1531                 }
1532         }
1533
1534         /*store the memory type in data structure */
1535         vout->memory = req->memory;
1536
1537         INIT_LIST_HEAD(&vout->dma_queue);
1538
1539         /* call videobuf_reqbufs api */
1540         ret = videobuf_reqbufs(q, req);
1541         if (ret < 0)
1542                 goto reqbuf_err;
1543
1544         vout->buffer_allocated = req->count;
1545
1546 reqbuf_err:
1547         mutex_unlock(&vout->lock);
1548         return ret;
1549 }
1550
1551 static int vidioc_querybuf(struct file *file, void *fh,
1552                         struct v4l2_buffer *b)
1553 {
1554         struct omap_vout_device *vout = fh;
1555
1556         return videobuf_querybuf(&vout->vbq, b);
1557 }
1558
1559 static int vidioc_qbuf(struct file *file, void *fh,
1560                         struct v4l2_buffer *buffer)
1561 {
1562         struct omap_vout_device *vout = fh;
1563         struct videobuf_queue *q = &vout->vbq;
1564
1565         if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
1566                         (buffer->index >= vout->buffer_allocated) ||
1567                         (q->bufs[buffer->index]->memory != buffer->memory)) {
1568                 return -EINVAL;
1569         }
1570         if (V4L2_MEMORY_USERPTR == buffer->memory) {
1571                 if ((buffer->length < vout->pix.sizeimage) ||
1572                                 (0 == buffer->m.userptr)) {
1573                         return -EINVAL;
1574                 }
1575         }
1576
1577         if ((is_rotation_enabled(vout)) &&
1578                         vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
1579                 v4l2_warn(&vout->vid_dev->v4l2_dev,
1580                                 "DMA Channel not allocated for Rotation\n");
1581                 return -EINVAL;
1582         }
1583
1584         return videobuf_qbuf(q, buffer);
1585 }
1586
1587 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1588 {
1589         struct omap_vout_device *vout = fh;
1590         struct videobuf_queue *q = &vout->vbq;
1591
1592         int ret;
1593         u32 addr;
1594         unsigned long size;
1595         struct videobuf_buffer *vb;
1596
1597         vb = q->bufs[b->index];
1598
1599         if (!vout->streaming)
1600                 return -EINVAL;
1601
1602         if (file->f_flags & O_NONBLOCK)
1603                 /* Call videobuf_dqbuf for non blocking mode */
1604                 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
1605         else
1606                 /* Call videobuf_dqbuf for  blocking mode */
1607                 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
1608
1609         addr = (unsigned long) vout->buf_phy_addr[vb->i];
1610         size = (unsigned long) vb->size;
1611         dma_unmap_single(vout->vid_dev->v4l2_dev.dev,  addr,
1612                                 size, DMA_TO_DEVICE);
1613         return ret;
1614 }
1615
1616 static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1617 {
1618         int ret = 0, j;
1619         u32 addr = 0, mask = 0;
1620         struct omap_vout_device *vout = fh;
1621         struct videobuf_queue *q = &vout->vbq;
1622         struct omapvideo_info *ovid = &vout->vid_info;
1623
1624         mutex_lock(&vout->lock);
1625
1626         if (vout->streaming) {
1627                 ret = -EBUSY;
1628                 goto streamon_err;
1629         }
1630
1631         ret = videobuf_streamon(q);
1632         if (ret)
1633                 goto streamon_err;
1634
1635         if (list_empty(&vout->dma_queue)) {
1636                 ret = -EIO;
1637                 goto streamon_err1;
1638         }
1639
1640         /* Get the next frame from the buffer queue */
1641         vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1642                         struct videobuf_buffer, queue);
1643         /* Remove buffer from the buffer queue */
1644         list_del(&vout->cur_frm->queue);
1645         /* Mark state of the current frame to active */
1646         vout->cur_frm->state = VIDEOBUF_ACTIVE;
1647         /* Initialize field_id and started member */
1648         vout->field_id = 0;
1649
1650         /* set flag here. Next QBUF will start DMA */
1651         vout->streaming = 1;
1652
1653         vout->first_int = 1;
1654
1655         if (omap_vout_calculate_offset(vout)) {
1656                 ret = -EINVAL;
1657                 goto streamon_err1;
1658         }
1659         addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i]
1660                 + vout->cropped_offset;
1661
1662         mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1663                 | DISPC_IRQ_VSYNC2;
1664
1665         omap_dispc_register_isr(omap_vout_isr, vout, mask);
1666
1667         for (j = 0; j < ovid->num_overlays; j++) {
1668                 struct omap_overlay *ovl = ovid->overlays[j];
1669
1670                 if (ovl->manager && ovl->manager->device) {
1671                         struct omap_overlay_info info;
1672                         ovl->get_overlay_info(ovl, &info);
1673                         info.paddr = addr;
1674                         if (ovl->set_overlay_info(ovl, &info)) {
1675                                 ret = -EINVAL;
1676                                 goto streamon_err1;
1677                         }
1678                 }
1679         }
1680
1681         /* First save the configuration in ovelray structure */
1682         ret = omapvid_init(vout, addr);
1683         if (ret)
1684                 v4l2_err(&vout->vid_dev->v4l2_dev,
1685                                 "failed to set overlay info\n");
1686         /* Enable the pipeline and set the Go bit */
1687         ret = omapvid_apply_changes(vout);
1688         if (ret)
1689                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1690
1691         for (j = 0; j < ovid->num_overlays; j++) {
1692                 struct omap_overlay *ovl = ovid->overlays[j];
1693
1694                 if (ovl->manager && ovl->manager->device) {
1695                         ret = ovl->enable(ovl);
1696                         if (ret)
1697                                 goto streamon_err1;
1698                 }
1699         }
1700
1701         ret = 0;
1702
1703 streamon_err1:
1704         if (ret)
1705                 ret = videobuf_streamoff(q);
1706 streamon_err:
1707         mutex_unlock(&vout->lock);
1708         return ret;
1709 }
1710
1711 static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1712 {
1713         u32 mask = 0;
1714         int ret = 0, j;
1715         struct omap_vout_device *vout = fh;
1716         struct omapvideo_info *ovid = &vout->vid_info;
1717
1718         if (!vout->streaming)
1719                 return -EINVAL;
1720
1721         vout->streaming = 0;
1722         mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1723                 | DISPC_IRQ_VSYNC2;
1724
1725         omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1726
1727         for (j = 0; j < ovid->num_overlays; j++) {
1728                 struct omap_overlay *ovl = ovid->overlays[j];
1729
1730                 if (ovl->manager && ovl->manager->device)
1731                         ovl->disable(ovl);
1732         }
1733
1734         /* Turn of the pipeline */
1735         ret = omapvid_apply_changes(vout);
1736         if (ret)
1737                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in"
1738                                 " streamoff\n");
1739
1740         INIT_LIST_HEAD(&vout->dma_queue);
1741         ret = videobuf_streamoff(&vout->vbq);
1742
1743         return ret;
1744 }
1745
1746 static int vidioc_s_fbuf(struct file *file, void *fh,
1747                                 struct v4l2_framebuffer *a)
1748 {
1749         int enable = 0;
1750         struct omap_overlay *ovl;
1751         struct omapvideo_info *ovid;
1752         struct omap_vout_device *vout = fh;
1753         struct omap_overlay_manager_info info;
1754         enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1755
1756         ovid = &vout->vid_info;
1757         ovl = ovid->overlays[0];
1758
1759         /* OMAP DSS doesn't support Source and Destination color
1760            key together */
1761         if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
1762                         (a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
1763                 return -EINVAL;
1764         /* OMAP DSS Doesn't support the Destination color key
1765            and alpha blending together */
1766         if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
1767                         (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA))
1768                 return -EINVAL;
1769
1770         if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) {
1771                 vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1772                 key_type =  OMAP_DSS_COLOR_KEY_VID_SRC;
1773         } else
1774                 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1775
1776         if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) {
1777                 vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1778                 key_type =  OMAP_DSS_COLOR_KEY_GFX_DST;
1779         } else
1780                 vout->fbuf.flags &=  ~V4L2_FBUF_FLAG_CHROMAKEY;
1781
1782         if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
1783                                 V4L2_FBUF_FLAG_SRC_CHROMAKEY))
1784                 enable = 1;
1785         else
1786                 enable = 0;
1787         if (ovl->manager && ovl->manager->get_manager_info &&
1788                         ovl->manager->set_manager_info) {
1789
1790                 ovl->manager->get_manager_info(ovl->manager, &info);
1791                 info.trans_enabled = enable;
1792                 info.trans_key_type = key_type;
1793                 info.trans_key = vout->win.chromakey;
1794
1795                 if (ovl->manager->set_manager_info(ovl->manager, &info))
1796                         return -EINVAL;
1797         }
1798         if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
1799                 vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1800                 enable = 1;
1801         } else {
1802                 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
1803                 enable = 0;
1804         }
1805         if (ovl->manager && ovl->manager->get_manager_info &&
1806                         ovl->manager->set_manager_info) {
1807                 ovl->manager->get_manager_info(ovl->manager, &info);
1808                 /* enable this only if there is no zorder cap */
1809                 if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
1810                         info.partial_alpha_enabled = enable;
1811                 if (ovl->manager->set_manager_info(ovl->manager, &info))
1812                         return -EINVAL;
1813         }
1814
1815         return 0;
1816 }
1817
1818 static int vidioc_g_fbuf(struct file *file, void *fh,
1819                 struct v4l2_framebuffer *a)
1820 {
1821         struct omap_overlay *ovl;
1822         struct omapvideo_info *ovid;
1823         struct omap_vout_device *vout = fh;
1824         struct omap_overlay_manager_info info;
1825
1826         ovid = &vout->vid_info;
1827         ovl = ovid->overlays[0];
1828
1829         /* The video overlay must stay within the framebuffer and can't be
1830            positioned independently. */
1831         a->flags = V4L2_FBUF_FLAG_OVERLAY;
1832         a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY
1833                 | V4L2_FBUF_CAP_SRC_CHROMAKEY;
1834
1835         if (ovl->manager && ovl->manager->get_manager_info) {
1836                 ovl->manager->get_manager_info(ovl->manager, &info);
1837                 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
1838                         a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1839                 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
1840                         a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1841         }
1842         if (ovl->manager && ovl->manager->get_manager_info) {
1843                 ovl->manager->get_manager_info(ovl->manager, &info);
1844                 if (info.partial_alpha_enabled)
1845                         a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1846         }
1847
1848         return 0;
1849 }
1850
1851 static const struct v4l2_ioctl_ops vout_ioctl_ops = {
1852         .vidioc_querycap                        = vidioc_querycap,
1853         .vidioc_enum_fmt_vid_out                = vidioc_enum_fmt_vid_out,
1854         .vidioc_g_fmt_vid_out                   = vidioc_g_fmt_vid_out,
1855         .vidioc_try_fmt_vid_out                 = vidioc_try_fmt_vid_out,
1856         .vidioc_s_fmt_vid_out                   = vidioc_s_fmt_vid_out,
1857         .vidioc_queryctrl                       = vidioc_queryctrl,
1858         .vidioc_g_ctrl                          = vidioc_g_ctrl,
1859         .vidioc_s_fbuf                          = vidioc_s_fbuf,
1860         .vidioc_g_fbuf                          = vidioc_g_fbuf,
1861         .vidioc_s_ctrl                          = vidioc_s_ctrl,
1862         .vidioc_try_fmt_vid_overlay             = vidioc_try_fmt_vid_overlay,
1863         .vidioc_s_fmt_vid_overlay               = vidioc_s_fmt_vid_overlay,
1864         .vidioc_enum_fmt_vid_overlay            = vidioc_enum_fmt_vid_overlay,
1865         .vidioc_g_fmt_vid_overlay               = vidioc_g_fmt_vid_overlay,
1866         .vidioc_cropcap                         = vidioc_cropcap,
1867         .vidioc_g_crop                          = vidioc_g_crop,
1868         .vidioc_s_crop                          = vidioc_s_crop,
1869         .vidioc_reqbufs                         = vidioc_reqbufs,
1870         .vidioc_querybuf                        = vidioc_querybuf,
1871         .vidioc_qbuf                            = vidioc_qbuf,
1872         .vidioc_dqbuf                           = vidioc_dqbuf,
1873         .vidioc_streamon                        = vidioc_streamon,
1874         .vidioc_streamoff                       = vidioc_streamoff,
1875 };
1876
1877 static const struct v4l2_file_operations omap_vout_fops = {
1878         .owner          = THIS_MODULE,
1879         .poll           = omap_vout_poll,
1880         .unlocked_ioctl = video_ioctl2,
1881         .mmap           = omap_vout_mmap,
1882         .open           = omap_vout_open,
1883         .release        = omap_vout_release,
1884 };
1885
1886 /* Init functions used during driver initialization */
1887 /* Initial setup of video_data */
1888 static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
1889 {
1890         struct video_device *vfd;
1891         struct v4l2_pix_format *pix;
1892         struct v4l2_control *control;
1893         struct omap_dss_device *display =
1894                 vout->vid_info.overlays[0]->manager->device;
1895
1896         /* set the default pix */
1897         pix = &vout->pix;
1898
1899         /* Set the default picture of QVGA  */
1900         pix->width = QQVGA_WIDTH;
1901         pix->height = QQVGA_HEIGHT;
1902
1903         /* Default pixel format is RGB 5-6-5 */
1904         pix->pixelformat = V4L2_PIX_FMT_RGB565;
1905         pix->field = V4L2_FIELD_ANY;
1906         pix->bytesperline = pix->width * 2;
1907         pix->sizeimage = pix->bytesperline * pix->height;
1908         pix->priv = 0;
1909         pix->colorspace = V4L2_COLORSPACE_JPEG;
1910
1911         vout->bpp = RGB565_BPP;
1912         vout->fbuf.fmt.width  =  display->panel.timings.x_res;
1913         vout->fbuf.fmt.height =  display->panel.timings.y_res;
1914
1915         /* Set the data structures for the overlay parameters*/
1916         vout->win.global_alpha = 255;
1917         vout->fbuf.flags = 0;
1918         vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
1919                 V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY;
1920         vout->win.chromakey = 0;
1921
1922         omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
1923
1924         /*Initialize the control variables for
1925           rotation, flipping and background color. */
1926         control = vout->control;
1927         control[0].id = V4L2_CID_ROTATE;
1928         control[0].value = 0;
1929         vout->rotation = 0;
1930         vout->mirror = 0;
1931         vout->control[2].id = V4L2_CID_HFLIP;
1932         vout->control[2].value = 0;
1933         if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
1934                 vout->vrfb_bpp = 2;
1935
1936         control[1].id = V4L2_CID_BG_COLOR;
1937         control[1].value = 0;
1938
1939         /* initialize the video_device struct */
1940         vfd = vout->vfd = video_device_alloc();
1941
1942         if (!vfd) {
1943                 printk(KERN_ERR VOUT_NAME ": could not allocate"
1944                                 " video device struct\n");
1945                 return -ENOMEM;
1946         }
1947         vfd->release = video_device_release;
1948         vfd->ioctl_ops = &vout_ioctl_ops;
1949
1950         strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
1951
1952         vfd->fops = &omap_vout_fops;
1953         vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
1954         mutex_init(&vout->lock);
1955
1956         vfd->minor = -1;
1957         return 0;
1958
1959 }
1960
1961 /* Setup video buffers */
1962 static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
1963                 int vid_num)
1964 {
1965         u32 numbuffers;
1966         int ret = 0, i;
1967         struct omapvideo_info *ovid;
1968         struct omap_vout_device *vout;
1969         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1970         struct omap2video_device *vid_dev =
1971                 container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
1972
1973         vout = vid_dev->vouts[vid_num];
1974         ovid = &vout->vid_info;
1975
1976         numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers;
1977         vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize;
1978         dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size);
1979
1980         for (i = 0; i < numbuffers; i++) {
1981                 vout->buf_virt_addr[i] =
1982                         omap_vout_alloc_buffer(vout->buffer_size,
1983                                         (u32 *) &vout->buf_phy_addr[i]);
1984                 if (!vout->buf_virt_addr[i]) {
1985                         numbuffers = i;
1986                         ret = -ENOMEM;
1987                         goto free_buffers;
1988                 }
1989         }
1990
1991         vout->cropped_offset = 0;
1992
1993         if (ovid->rotation_type == VOUT_ROT_VRFB) {
1994                 int static_vrfb_allocation = (vid_num == 0) ?
1995                         vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
1996                 ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
1997                                 static_vrfb_allocation);
1998         }
1999
2000         return ret;
2001
2002 free_buffers:
2003         for (i = 0; i < numbuffers; i++) {
2004                 omap_vout_free_buffer(vout->buf_virt_addr[i],
2005                                                 vout->buffer_size);
2006                 vout->buf_virt_addr[i] = 0;
2007                 vout->buf_phy_addr[i] = 0;
2008         }
2009         return ret;
2010
2011 }
2012
2013 /* Create video out devices */
2014 static int __init omap_vout_create_video_devices(struct platform_device *pdev)
2015 {
2016         int ret = 0, k;
2017         struct omap_vout_device *vout;
2018         struct video_device *vfd = NULL;
2019         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2020         struct omap2video_device *vid_dev = container_of(v4l2_dev,
2021                         struct omap2video_device, v4l2_dev);
2022
2023         for (k = 0; k < pdev->num_resources; k++) {
2024
2025                 vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
2026                 if (!vout) {
2027                         dev_err(&pdev->dev, ": could not allocate memory\n");
2028                         return -ENOMEM;
2029                 }
2030
2031                 vout->vid = k;
2032                 vid_dev->vouts[k] = vout;
2033                 vout->vid_dev = vid_dev;
2034                 /* Select video2 if only 1 overlay is controlled by V4L2 */
2035                 if (pdev->num_resources == 1)
2036                         vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
2037                 else
2038                         /* Else select video1 and video2 one by one. */
2039                         vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
2040                 vout->vid_info.num_overlays = 1;
2041                 vout->vid_info.id = k + 1;
2042
2043                 /* Set VRFB as rotation_type for omap2 and omap3 */
2044                 if (cpu_is_omap24xx() || cpu_is_omap34xx())
2045                         vout->vid_info.rotation_type = VOUT_ROT_VRFB;
2046
2047                 /* Setup the default configuration for the video devices
2048                  */
2049                 if (omap_vout_setup_video_data(vout) != 0) {
2050                         ret = -ENOMEM;
2051                         goto error;
2052                 }
2053
2054                 /* Allocate default number of buffers for the video streaming
2055                  * and reserve the VRFB space for rotation
2056                  */
2057                 if (omap_vout_setup_video_bufs(pdev, k) != 0) {
2058                         ret = -ENOMEM;
2059                         goto error1;
2060                 }
2061
2062                 /* Register the Video device with V4L2
2063                  */
2064                 vfd = vout->vfd;
2065                 if (video_register_device(vfd, VFL_TYPE_GRABBER, -1) < 0) {
2066                         dev_err(&pdev->dev, ": Could not register "
2067                                         "Video for Linux device\n");
2068                         vfd->minor = -1;
2069                         ret = -ENODEV;
2070                         goto error2;
2071                 }
2072                 video_set_drvdata(vfd, vout);
2073
2074                 /* Configure the overlay structure */
2075                 ret = omapvid_init(vid_dev->vouts[k], 0);
2076                 if (!ret)
2077                         goto success;
2078
2079 error2:
2080                 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
2081                         omap_vout_release_vrfb(vout);
2082                 omap_vout_free_buffers(vout);
2083 error1:
2084                 video_device_release(vfd);
2085 error:
2086                 kfree(vout);
2087                 return ret;
2088
2089 success:
2090                 dev_info(&pdev->dev, ": registered and initialized"
2091                                 " video device %d\n", vfd->minor);
2092                 if (k == (pdev->num_resources - 1))
2093                         return 0;
2094         }
2095
2096         return -ENODEV;
2097 }
2098 /* Driver functions */
2099 static void omap_vout_cleanup_device(struct omap_vout_device *vout)
2100 {
2101         struct video_device *vfd;
2102         struct omapvideo_info *ovid;
2103
2104         if (!vout)
2105                 return;
2106
2107         vfd = vout->vfd;
2108         ovid = &vout->vid_info;
2109         if (vfd) {
2110                 if (!video_is_registered(vfd)) {
2111                         /*
2112                          * The device was never registered, so release the
2113                          * video_device struct directly.
2114                          */
2115                         video_device_release(vfd);
2116                 } else {
2117                         /*
2118                          * The unregister function will release the video_device
2119                          * struct as well as unregistering it.
2120                          */
2121                         video_unregister_device(vfd);
2122                 }
2123         }
2124         if (ovid->rotation_type == VOUT_ROT_VRFB) {
2125                 omap_vout_release_vrfb(vout);
2126                 /* Free the VRFB buffer if allocated
2127                  * init time
2128                  */
2129                 if (vout->vrfb_static_allocation)
2130                         omap_vout_free_vrfb_buffers(vout);
2131         }
2132         omap_vout_free_buffers(vout);
2133
2134         kfree(vout);
2135 }
2136
2137 static int omap_vout_remove(struct platform_device *pdev)
2138 {
2139         int k;
2140         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2141         struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
2142                         omap2video_device, v4l2_dev);
2143
2144         v4l2_device_unregister(v4l2_dev);
2145         for (k = 0; k < pdev->num_resources; k++)
2146                 omap_vout_cleanup_device(vid_dev->vouts[k]);
2147
2148         for (k = 0; k < vid_dev->num_displays; k++) {
2149                 if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
2150                         vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
2151
2152                 omap_dss_put_device(vid_dev->displays[k]);
2153         }
2154         kfree(vid_dev);
2155         return 0;
2156 }
2157
2158 static int __init omap_vout_probe(struct platform_device *pdev)
2159 {
2160         int ret = 0, i;
2161         struct omap_overlay *ovl;
2162         struct omap_dss_device *dssdev = NULL;
2163         struct omap_dss_device *def_display;
2164         struct omap2video_device *vid_dev = NULL;
2165
2166         if (pdev->num_resources == 0) {
2167                 dev_err(&pdev->dev, "probed for an unknown device\n");
2168                 return -ENODEV;
2169         }
2170
2171         vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
2172         if (vid_dev == NULL)
2173                 return -ENOMEM;
2174
2175         vid_dev->num_displays = 0;
2176         for_each_dss_dev(dssdev) {
2177                 omap_dss_get_device(dssdev);
2178
2179                 if (!dssdev->driver) {
2180                         dev_warn(&pdev->dev, "no driver for display: %s\n",
2181                                         dssdev->name);
2182                         omap_dss_put_device(dssdev);
2183                         continue;
2184                 }
2185
2186                 vid_dev->displays[vid_dev->num_displays++] = dssdev;
2187         }
2188
2189         if (vid_dev->num_displays == 0) {
2190                 dev_err(&pdev->dev, "no displays\n");
2191                 ret = -EINVAL;
2192                 goto probe_err0;
2193         }
2194
2195         vid_dev->num_overlays = omap_dss_get_num_overlays();
2196         for (i = 0; i < vid_dev->num_overlays; i++)
2197                 vid_dev->overlays[i] = omap_dss_get_overlay(i);
2198
2199         vid_dev->num_managers = omap_dss_get_num_overlay_managers();
2200         for (i = 0; i < vid_dev->num_managers; i++)
2201                 vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
2202
2203         /* Get the Video1 overlay and video2 overlay.
2204          * Setup the Display attached to that overlays
2205          */
2206         for (i = 1; i < vid_dev->num_overlays; i++) {
2207                 ovl = omap_dss_get_overlay(i);
2208                 if (ovl->manager && ovl->manager->device) {
2209                         def_display = ovl->manager->device;
2210                 } else {
2211                         dev_warn(&pdev->dev, "cannot find display\n");
2212                         def_display = NULL;
2213                 }
2214                 if (def_display) {
2215                         struct omap_dss_driver *dssdrv = def_display->driver;
2216
2217                         ret = dssdrv->enable(def_display);
2218                         if (ret) {
2219                                 /* Here we are not considering a error
2220                                  *  as display may be enabled by frame
2221                                  *  buffer driver
2222                                  */
2223                                 dev_warn(&pdev->dev,
2224                                         "'%s' Display already enabled\n",
2225                                         def_display->name);
2226                         }
2227                 }
2228         }
2229
2230         if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
2231                 dev_err(&pdev->dev, "v4l2_device_register failed\n");
2232                 ret = -ENODEV;
2233                 goto probe_err1;
2234         }
2235
2236         ret = omap_vout_create_video_devices(pdev);
2237         if (ret)
2238                 goto probe_err2;
2239
2240         for (i = 0; i < vid_dev->num_displays; i++) {
2241                 struct omap_dss_device *display = vid_dev->displays[i];
2242
2243                 if (display->driver->update)
2244                         display->driver->update(display, 0, 0,
2245                                         display->panel.timings.x_res,
2246                                         display->panel.timings.y_res);
2247         }
2248         return 0;
2249
2250 probe_err2:
2251         v4l2_device_unregister(&vid_dev->v4l2_dev);
2252 probe_err1:
2253         for (i = 1; i < vid_dev->num_overlays; i++) {
2254                 def_display = NULL;
2255                 ovl = omap_dss_get_overlay(i);
2256                 if (ovl->manager && ovl->manager->device)
2257                         def_display = ovl->manager->device;
2258
2259                 if (def_display && def_display->driver)
2260                         def_display->driver->disable(def_display);
2261         }
2262 probe_err0:
2263         kfree(vid_dev);
2264         return ret;
2265 }
2266
2267 static struct platform_driver omap_vout_driver = {
2268         .driver = {
2269                 .name = VOUT_NAME,
2270         },
2271         .remove = omap_vout_remove,
2272 };
2273
2274 static int __init omap_vout_init(void)
2275 {
2276         if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) {
2277                 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
2278                 return -EINVAL;
2279         }
2280         return 0;
2281 }
2282
2283 static void omap_vout_cleanup(void)
2284 {
2285         platform_driver_unregister(&omap_vout_driver);
2286 }
2287
2288 late_initcall(omap_vout_init);
2289 module_exit(omap_vout_cleanup);