drivers/media/video/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 u32 vid1_static_vrfb_alloc;
  74 static u32 vid2_static_vrfb_alloc;
  75 static int 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         /* For kernel direct-mapped memory, take the easy way */
 210         if (virtp >= PAGE_OFFSET)
 211                 return virt_to_phys((void *) virtp);
 212
 213         down_read(&current->mm->mmap_sem);
 214         vma = find_vma(mm, virtp);
 215         if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) {
 216                 /* this will catch, kernel-allocated, mmaped-to-usermode
 217                    addresses */
 218                 physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start);
 219                 up_read(&current->mm->mmap_sem);
 220         } else {
 221                 /* otherwise, use get_user_pages() for general userland pages */
 222                 int res, nr_pages = 1;
 223                 struct page *pages;
 224
 225                 res = get_user_pages(current, current->mm, virtp, nr_pages, 1,
 226                                 0, &pages, NULL);
 227                 up_read(&current->mm->mmap_sem);
 228
 229                 if (res == nr_pages) {
 230                         physp =  __pa(page_address(&pages[0]) +
 231                                         (virtp & ~PAGE_MASK));
 232                 } else {
 233                         printk(KERN_WARNING VOUT_NAME
 234                                         "get_user_pages failed\n");
 235                         return 0;
 236                 }
 237         }
 238
 239         return physp;
 240 }
 241
 242 /*
 243  * Free the V4L2 buffers
 244  */
 245 void omap_vout_free_buffers(struct omap_vout_device *vout)
 246 {
 247         int i, numbuffers;
 248
 249         /* Allocate memory for the buffers */
 250         numbuffers = (vout->vid) ?  video2_numbuffers : video1_numbuffers;
 251         vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize;
 252
 253         for (i = 0; i < numbuffers; i++) {
 254                 omap_vout_free_buffer(vout->buf_virt_addr[i],
 255                                 vout->buffer_size);
 256                 vout->buf_phy_addr[i] = 0;
 257                 vout->buf_virt_addr[i] = 0;
 258         }
 259 }
 260
 261 /*
 262  * Convert V4L2 rotation to DSS rotation
 263  *      V4L2 understand 0, 90, 180, 270.
 264  *      Convert to 0, 1, 2 and 3 respectively for DSS
 265  */
 266 static int v4l2_rot_to_dss_rot(int v4l2_rotation,
 267                         enum dss_rotation *rotation, bool mirror)
 268 {
 269         int ret = 0;
 270
 271         switch (v4l2_rotation) {
 272         case 90:
 273                 *rotation = dss_rotation_90_degree;
 274                 break;
 275         case 180:
 276                 *rotation = dss_rotation_180_degree;
 277                 break;
 278         case 270:
 279                 *rotation = dss_rotation_270_degree;
 280                 break;
 281         case 0:
 282                 *rotation = dss_rotation_0_degree;
 283                 break;
 284         default:
 285                 ret = -EINVAL;
 286         }
 287         return ret;
 288 }
 289
 290 static int omap_vout_calculate_offset(struct omap_vout_device *vout)
 291 {
 292         struct omapvideo_info *ovid;
 293         struct v4l2_rect *crop = &vout->crop;
 294         struct v4l2_pix_format *pix = &vout->pix;
 295         int *cropped_offset = &vout->cropped_offset;
 296         int ps = 2, line_length = 0;
 297
 298         ovid = &vout->vid_info;
 299
 300         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 301                 omap_vout_calculate_vrfb_offset(vout);
 302         } else {
 303                 vout->line_length = line_length = pix->width;
 304
 305                 if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
 306                         V4L2_PIX_FMT_UYVY == pix->pixelformat)
 307                         ps = 2;
 308                 else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
 309                         ps = 4;
 310                 else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
 311                         ps = 3;
 312
 313                 vout->ps = ps;
 314
 315                 *cropped_offset = (line_length * ps) *
 316                         crop->top + crop->left * ps;
 317         }
 318
 319         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
 320                         __func__, vout->cropped_offset);
 321
 322         return 0;
 323 }
 324
 325 /*
 326  * Convert V4L2 pixel format to DSS pixel format
 327  */
 328 static int video_mode_to_dss_mode(struct omap_vout_device *vout)
 329 {
 330         struct omap_overlay *ovl;
 331         struct omapvideo_info *ovid;
 332         struct v4l2_pix_format *pix = &vout->pix;
 333         enum omap_color_mode mode;
 334
 335         ovid = &vout->vid_info;
 336         ovl = ovid->overlays[0];
 337
 338         switch (pix->pixelformat) {
 339         case 0:
 340                 break;
 341         case V4L2_PIX_FMT_YUYV:
 342                 mode = OMAP_DSS_COLOR_YUV2;
 343                 break;
 344         case V4L2_PIX_FMT_UYVY:
 345                 mode = OMAP_DSS_COLOR_UYVY;
 346                 break;
 347         case V4L2_PIX_FMT_RGB565:
 348                 mode = OMAP_DSS_COLOR_RGB16;
 349                 break;
 350         case V4L2_PIX_FMT_RGB24:
 351                 mode = OMAP_DSS_COLOR_RGB24P;
 352                 break;
 353         case V4L2_PIX_FMT_RGB32:
 354                 mode = (ovl->id == OMAP_DSS_VIDEO1) ?
 355                         OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
 356                 break;
 357         case V4L2_PIX_FMT_BGR32:
 358                 mode = OMAP_DSS_COLOR_RGBX32;
 359                 break;
 360         default:
 361                 mode = -EINVAL;
 362         }
 363         return mode;
 364 }
 365
 366 /*
 367  * Setup the overlay
 368  */
 369 static int omapvid_setup_overlay(struct omap_vout_device *vout,
 370                 struct omap_overlay *ovl, int posx, int posy, int outw,
 371                 int outh, u32 addr)
 372 {
 373         int ret = 0;
 374         struct omap_overlay_info info;
 375         int cropheight, cropwidth, pixheight, pixwidth;
 376
 377         if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
 378                         (outw != vout->pix.width || outh != vout->pix.height)) {
 379                 ret = -EINVAL;
 380                 goto setup_ovl_err;
 381         }
 382
 383         vout->dss_mode = video_mode_to_dss_mode(vout);
 384         if (vout->dss_mode == -EINVAL) {
 385                 ret = -EINVAL;
 386                 goto setup_ovl_err;
 387         }
 388
 389         /* Setup the input plane parameters according to
 390          * rotation value selected.
 391          */
 392         if (is_rotation_90_or_270(vout)) {
 393                 cropheight = vout->crop.width;
 394                 cropwidth = vout->crop.height;
 395                 pixheight = vout->pix.width;
 396                 pixwidth = vout->pix.height;
 397         } else {
 398                 cropheight = vout->crop.height;
 399                 cropwidth = vout->crop.width;
 400                 pixheight = vout->pix.height;
 401                 pixwidth = vout->pix.width;
 402         }
 403
 404         ovl->get_overlay_info(ovl, &info);
 405         info.paddr = addr;
 406         info.width = cropwidth;
 407         info.height = cropheight;
 408         info.color_mode = vout->dss_mode;
 409         info.mirror = vout->mirror;
 410         info.pos_x = posx;
 411         info.pos_y = posy;
 412         info.out_width = outw;
 413         info.out_height = outh;
 414         info.global_alpha = vout->win.global_alpha;
 415         if (!is_rotation_enabled(vout)) {
 416                 info.rotation = 0;
 417                 info.rotation_type = OMAP_DSS_ROT_DMA;
 418                 info.screen_width = pixwidth;
 419         } else {
 420                 info.rotation = vout->rotation;
 421                 info.rotation_type = OMAP_DSS_ROT_VRFB;
 422                 info.screen_width = 2048;
 423         }
 424
 425         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 426                 "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n"
 427                 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
 428                 "out_height=%d rotation_type=%d screen_width=%d\n",
 429                 __func__, info.enabled, info.paddr, info.width, info.height,
 430                 info.color_mode, info.rotation, info.mirror, info.pos_x,
 431                 info.pos_y, info.out_width, info.out_height, info.rotation_type,
 432                 info.screen_width);
 433
 434         ret = ovl->set_overlay_info(ovl, &info);
 435         if (ret)
 436                 goto setup_ovl_err;
 437
 438         return 0;
 439
 440 setup_ovl_err:
 441         v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
 442         return ret;
 443 }
 444
 445 /*
 446  * Initialize the overlay structure
 447  */
 448 static int omapvid_init(struct omap_vout_device *vout, u32 addr)
 449 {
 450         int ret = 0, i;
 451         struct v4l2_window *win;
 452         struct omap_overlay *ovl;
 453         int posx, posy, outw, outh, temp;
 454         struct omap_video_timings *timing;
 455         struct omapvideo_info *ovid = &vout->vid_info;
 456
 457         win = &vout->win;
 458         for (i = 0; i < ovid->num_overlays; i++) {
 459                 ovl = ovid->overlays[i];
 460                 if (!ovl->manager || !ovl->manager->device)
 461                         return -EINVAL;
 462
 463                 timing = &ovl->manager->device->panel.timings;
 464
 465                 outw = win->w.width;
 466                 outh = win->w.height;
 467                 switch (vout->rotation) {
 468                 case dss_rotation_90_degree:
 469                         /* Invert the height and width for 90
 470                          * and 270 degree rotation
 471                          */
 472                         temp = outw;
 473                         outw = outh;
 474                         outh = temp;
 475                         posy = (timing->y_res - win->w.width) - win->w.left;
 476                         posx = win->w.top;
 477                         break;
 478
 479                 case dss_rotation_180_degree:
 480                         posx = (timing->x_res - win->w.width) - win->w.left;
 481                         posy = (timing->y_res - win->w.height) - win->w.top;
 482                         break;
 483
 484                 case dss_rotation_270_degree:
 485                         temp = outw;
 486                         outw = outh;
 487                         outh = temp;
 488                         posy = win->w.left;
 489                         posx = (timing->x_res - win->w.height) - win->w.top;
 490                         break;
 491
 492                 default:
 493                         posx = win->w.left;
 494                         posy = win->w.top;
 495                         break;
 496                 }
 497
 498                 ret = omapvid_setup_overlay(vout, ovl, posx, posy,
 499                                 outw, outh, addr);
 500                 if (ret)
 501                         goto omapvid_init_err;
 502         }
 503         return 0;
 504
 505 omapvid_init_err:
 506         v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
 507         return ret;
 508 }
 509
 510 /*
 511  * Apply the changes set the go bit of DSS
 512  */
 513 static int omapvid_apply_changes(struct omap_vout_device *vout)
 514 {
 515         int i;
 516         struct omap_overlay *ovl;
 517         struct omapvideo_info *ovid = &vout->vid_info;
 518
 519         for (i = 0; i < ovid->num_overlays; i++) {
 520                 ovl = ovid->overlays[i];
 521                 if (!ovl->manager || !ovl->manager->device)
 522                         return -EINVAL;
 523                 ovl->manager->apply(ovl->manager);
 524         }
 525
 526         return 0;
 527 }
 528
 529 static void omap_vout_isr(void *arg, unsigned int irqstatus)
 530 {
 531         int ret;
 532         u32 addr, fid;
 533         struct omap_overlay *ovl;
 534         struct timeval timevalue;
 535         struct omapvideo_info *ovid;
 536         struct omap_dss_device *cur_display;
 537         struct omap_vout_device *vout = (struct omap_vout_device *)arg;
 538
 539         if (!vout->streaming)
 540                 return;
 541
 542         ovid = &vout->vid_info;
 543         ovl = ovid->overlays[0];
 544         /* get the display device attached to the overlay */
 545         if (!ovl->manager || !ovl->manager->device)
 546                 return;
 547
 548         cur_display = ovl->manager->device;
 549
 550         spin_lock(&vout->vbq_lock);
 551         do_gettimeofday(&timevalue);
 552
 553         if (cur_display->type != OMAP_DISPLAY_TYPE_VENC) {
 554                 switch (cur_display->type) {
 555                 case OMAP_DISPLAY_TYPE_DPI:
 556                         if (!(irqstatus & (DISPC_IRQ_VSYNC | DISPC_IRQ_VSYNC2)))
 557                                 goto vout_isr_err;
 558                         break;
 559                 case OMAP_DISPLAY_TYPE_HDMI:
 560                         if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
 561                                 goto vout_isr_err;
 562                         break;
 563                 default:
 564                         goto vout_isr_err;
 565                 }
 566                 if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
 567                         vout->cur_frm->ts = timevalue;
 568                         vout->cur_frm->state = VIDEOBUF_DONE;
 569                         wake_up_interruptible(&vout->cur_frm->done);
 570                         vout->cur_frm = vout->next_frm;
 571                 }
 572                 vout->first_int = 0;
 573                 if (list_empty(&vout->dma_queue))
 574                         goto vout_isr_err;
 575
 576                 vout->next_frm = list_entry(vout->dma_queue.next,
 577                                 struct videobuf_buffer, queue);
 578                 list_del(&vout->next_frm->queue);
 579
 580                 vout->next_frm->state = VIDEOBUF_ACTIVE;
 581
 582                 addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
 583                         + vout->cropped_offset;
 584
 585                 /* First save the configuration in ovelray structure */
 586                 ret = omapvid_init(vout, addr);
 587                 if (ret)
 588                         printk(KERN_ERR VOUT_NAME
 589                                 "failed to set overlay info\n");
 590                 /* Enable the pipeline and set the Go bit */
 591                 ret = omapvid_apply_changes(vout);
 592                 if (ret)
 593                         printk(KERN_ERR VOUT_NAME "failed to change mode\n");
 594         } else {
 595
 596                 if (vout->first_int) {
 597                         vout->first_int = 0;
 598                         goto vout_isr_err;
 599                 }
 600                 if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
 601                         fid = 1;
 602                 else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
 603                         fid = 0;
 604                 else
 605                         goto vout_isr_err;
 606
 607                 vout->field_id ^= 1;
 608                 if (fid != vout->field_id) {
 609                         if (0 == fid)
 610                                 vout->field_id = fid;
 611
 612                         goto vout_isr_err;
 613                 }
 614                 if (0 == fid) {
 615                         if (vout->cur_frm == vout->next_frm)
 616                                 goto vout_isr_err;
 617
 618                         vout->cur_frm->ts = timevalue;
 619                         vout->cur_frm->state = VIDEOBUF_DONE;
 620                         wake_up_interruptible(&vout->cur_frm->done);
 621                         vout->cur_frm = vout->next_frm;
 622                 } else if (1 == fid) {
 623                         if (list_empty(&vout->dma_queue) ||
 624                                         (vout->cur_frm != vout->next_frm))
 625                                 goto vout_isr_err;
 626
 627                         vout->next_frm = list_entry(vout->dma_queue.next,
 628                                         struct videobuf_buffer, queue);
 629                         list_del(&vout->next_frm->queue);
 630
 631                         vout->next_frm->state = VIDEOBUF_ACTIVE;
 632                         addr = (unsigned long)
 633                                 vout->queued_buf_addr[vout->next_frm->i] +
 634                                 vout->cropped_offset;
 635                         /* First save the configuration in ovelray structure */
 636                         ret = omapvid_init(vout, addr);
 637                         if (ret)
 638                                 printk(KERN_ERR VOUT_NAME
 639                                                 "failed to set overlay info\n");
 640                         /* Enable the pipeline and set the Go bit */
 641                         ret = omapvid_apply_changes(vout);
 642                         if (ret)
 643                                 printk(KERN_ERR VOUT_NAME
 644                                                 "failed to change mode\n");
 645                 }
 646
 647         }
 648
 649 vout_isr_err:
 650         spin_unlock(&vout->vbq_lock);
 651 }
 652
 653
 654 /* Video buffer call backs */
 655
 656 /*
 657  * Buffer setup function is called by videobuf layer when REQBUF ioctl is
 658  * called. This is used to setup buffers and return size and count of
 659  * buffers allocated. After the call to this buffer, videobuf layer will
 660  * setup buffer queue depending on the size and count of buffers
 661  */
 662 static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
 663                           unsigned int *size)
 664 {
 665         int startindex = 0, i, j;
 666         u32 phy_addr = 0, virt_addr = 0;
 667         struct omap_vout_device *vout = q->priv_data;
 668         struct omapvideo_info *ovid = &vout->vid_info;
 669
 670         if (!vout)
 671                 return -EINVAL;
 672
 673         if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
 674                 return -EINVAL;
 675
 676         startindex = (vout->vid == OMAP_VIDEO1) ?
 677                 video1_numbuffers : video2_numbuffers;
 678         if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
 679                 *count = startindex;
 680
 681         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 682                 if (omap_vout_vrfb_buffer_setup(vout, count, startindex))
 683                         return -ENOMEM;
 684         }
 685
 686         if (V4L2_MEMORY_MMAP != vout->memory)
 687                 return 0;
 688
 689         /* Now allocated the V4L2 buffers */
 690         *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp);
 691         startindex = (vout->vid == OMAP_VIDEO1) ?
 692                 video1_numbuffers : video2_numbuffers;
 693
 694         /* Check the size of the buffer */
 695         if (*size > vout->buffer_size) {
 696                 v4l2_err(&vout->vid_dev->v4l2_dev,
 697                                 "buffer allocation mismatch [%u] [%u]\n",
 698                                 *size, vout->buffer_size);
 699                 return -ENOMEM;
 700         }
 701
 702         for (i = startindex; i < *count; i++) {
 703                 vout->buffer_size = *size;
 704
 705                 virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
 706                                 &phy_addr);
 707                 if (!virt_addr) {
 708                         if (ovid->rotation_type == VOUT_ROT_NONE) {
 709                                 break;
 710                         } else {
 711                                 if (!is_rotation_enabled(vout))
 712                                         break;
 713                         /* Free the VRFB buffers if no space for V4L2 buffers */
 714                         for (j = i; j < *count; j++) {
 715                                 omap_vout_free_buffer(
 716                                                 vout->smsshado_virt_addr[j],
 717                                                 vout->smsshado_size);
 718                                 vout->smsshado_virt_addr[j] = 0;
 719                                 vout->smsshado_phy_addr[j] = 0;
 720                                 }
 721                         }
 722                 }
 723                 vout->buf_virt_addr[i] = virt_addr;
 724                 vout->buf_phy_addr[i] = phy_addr;
 725         }
 726         *count = vout->buffer_allocated = i;
 727
 728         return 0;
 729 }
 730
 731 /*
 732  * Free the V4L2 buffers additionally allocated than default
 733  * number of buffers
 734  */
 735 static void omap_vout_free_extra_buffers(struct omap_vout_device *vout)
 736 {
 737         int num_buffers = 0, i;
 738
 739         num_buffers = (vout->vid == OMAP_VIDEO1) ?
 740                 video1_numbuffers : video2_numbuffers;
 741
 742         for (i = num_buffers; i < vout->buffer_allocated; i++) {
 743                 if (vout->buf_virt_addr[i])
 744                         omap_vout_free_buffer(vout->buf_virt_addr[i],
 745                                         vout->buffer_size);
 746
 747                 vout->buf_virt_addr[i] = 0;
 748                 vout->buf_phy_addr[i] = 0;
 749         }
 750         vout->buffer_allocated = num_buffers;
 751 }
 752
 753 /*
 754  * This function will be called when VIDIOC_QBUF ioctl is called.
 755  * It prepare buffers before give out for the display. This function
 756  * converts user space virtual address into physical address if userptr memory
 757  * exchange mechanism is used. If rotation is enabled, it copies entire
 758  * buffer into VRFB memory space before giving it to the DSS.
 759  */
 760 static int omap_vout_buffer_prepare(struct videobuf_queue *q,
 761                         struct videobuf_buffer *vb,
 762                         enum v4l2_field field)
 763 {
 764         struct omap_vout_device *vout = q->priv_data;
 765         struct omapvideo_info *ovid = &vout->vid_info;
 766
 767         if (VIDEOBUF_NEEDS_INIT == vb->state) {
 768                 vb->width = vout->pix.width;
 769                 vb->height = vout->pix.height;
 770                 vb->size = vb->width * vb->height * vout->bpp;
 771                 vb->field = field;
 772         }
 773         vb->state = VIDEOBUF_PREPARED;
 774         /* if user pointer memory mechanism is used, get the physical
 775          * address of the buffer
 776          */
 777         if (V4L2_MEMORY_USERPTR == vb->memory) {
 778                 if (0 == vb->baddr)
 779                         return -EINVAL;
 780                 /* Physical address */
 781                 vout->queued_buf_addr[vb->i] = (u8 *)
 782                         omap_vout_uservirt_to_phys(vb->baddr);
 783         } else {
 784                 u32 addr, dma_addr;
 785                 unsigned long size;
 786
 787                 addr = (unsigned long) vout->buf_virt_addr[vb->i];
 788                 size = (unsigned long) vb->size;
 789
 790                 dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr,
 791                                 size, DMA_TO_DEVICE);
 792                 if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr))
 793                         v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n");
 794
 795                 vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i];
 796         }
 797
 798         if (ovid->rotation_type == VOUT_ROT_VRFB)
 799                 return omap_vout_prepare_vrfb(vout, vb);
 800         else
 801                 return 0;
 802 }
 803
 804 /*
 805  * Buffer queue function will be called from the videobuf layer when _QBUF
 806  * ioctl is called. It is used to enqueue buffer, which is ready to be
 807  * displayed.
 808  */
 809 static void omap_vout_buffer_queue(struct videobuf_queue *q,
 810                           struct videobuf_buffer *vb)
 811 {
 812         struct omap_vout_device *vout = q->priv_data;
 813
 814         /* Driver is also maintainig a queue. So enqueue buffer in the driver
 815          * queue */
 816         list_add_tail(&vb->queue, &vout->dma_queue);
 817
 818         vb->state = VIDEOBUF_QUEUED;
 819 }
 820
 821 /*
 822  * Buffer release function is called from videobuf layer to release buffer
 823  * which are already allocated
 824  */
 825 static void omap_vout_buffer_release(struct videobuf_queue *q,
 826                             struct videobuf_buffer *vb)
 827 {
 828         struct omap_vout_device *vout = q->priv_data;
 829
 830         vb->state = VIDEOBUF_NEEDS_INIT;
 831
 832         if (V4L2_MEMORY_MMAP != vout->memory)
 833                 return;
 834 }
 835
 836 /*
 837  *  File operations
 838  */
 839 static unsigned int omap_vout_poll(struct file *file,
 840                                    struct poll_table_struct *wait)
 841 {
 842         struct omap_vout_device *vout = file->private_data;
 843         struct videobuf_queue *q = &vout->vbq;
 844
 845         return videobuf_poll_stream(file, q, wait);
 846 }
 847
 848 static void omap_vout_vm_open(struct vm_area_struct *vma)
 849 {
 850         struct omap_vout_device *vout = vma->vm_private_data;
 851
 852         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 853                 "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
 854         vout->mmap_count++;
 855 }
 856
 857 static void omap_vout_vm_close(struct vm_area_struct *vma)
 858 {
 859         struct omap_vout_device *vout = vma->vm_private_data;
 860
 861         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 862                 "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
 863         vout->mmap_count--;
 864 }
 865
 866 static struct vm_operations_struct omap_vout_vm_ops = {
 867         .open   = omap_vout_vm_open,
 868         .close  = omap_vout_vm_close,
 869 };
 870
 871 static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
 872 {
 873         int i;
 874         void *pos;
 875         unsigned long start = vma->vm_start;
 876         unsigned long size = (vma->vm_end - vma->vm_start);
 877         struct omap_vout_device *vout = file->private_data;
 878         struct videobuf_queue *q = &vout->vbq;
 879
 880         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 881                         " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__,
 882                         vma->vm_pgoff, vma->vm_start, vma->vm_end);
 883
 884         /* look for the buffer to map */
 885         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
 886                 if (NULL == q->bufs[i])
 887                         continue;
 888                 if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
 889                         continue;
 890                 if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
 891                         break;
 892         }
 893
 894         if (VIDEO_MAX_FRAME == i) {
 895                 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 896                                 "offset invalid [offset=0x%lx]\n",
 897                                 (vma->vm_pgoff << PAGE_SHIFT));
 898                 return -EINVAL;
 899         }
 900         /* Check the size of the buffer */
 901         if (size > vout->buffer_size) {
 902                 v4l2_err(&vout->vid_dev->v4l2_dev,
 903                                 "insufficient memory [%lu] [%u]\n",
 904                                 size, vout->buffer_size);
 905                 return -ENOMEM;
 906         }
 907
 908         q->bufs[i]->baddr = vma->vm_start;
 909
 910         vma->vm_flags |= VM_RESERVED;
 911         vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 912         vma->vm_ops = &omap_vout_vm_ops;
 913         vma->vm_private_data = (void *) vout;
 914         pos = (void *)vout->buf_virt_addr[i];
 915         vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT;
 916         while (size > 0) {
 917                 unsigned long pfn;
 918                 pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
 919                 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
 920                         return -EAGAIN;
 921                 start += PAGE_SIZE;
 922                 pos += PAGE_SIZE;
 923                 size -= PAGE_SIZE;
 924         }
 925         vout->mmap_count++;
 926         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
 927
 928         return 0;
 929 }
 930
 931 static int omap_vout_release(struct file *file)
 932 {
 933         unsigned int ret, i;
 934         struct videobuf_queue *q;
 935         struct omapvideo_info *ovid;
 936         struct omap_vout_device *vout = file->private_data;
 937
 938         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
 939         ovid = &vout->vid_info;
 940
 941         if (!vout)
 942                 return 0;
 943
 944         q = &vout->vbq;
 945         /* Disable all the overlay managers connected with this interface */
 946         for (i = 0; i < ovid->num_overlays; i++) {
 947                 struct omap_overlay *ovl = ovid->overlays[i];
 948                 if (ovl->manager && ovl->manager->device) {
 949                         struct omap_overlay_info info;
 950                         ovl->get_overlay_info(ovl, &info);
 951                         info.enabled = 0;
 952                         ovl->set_overlay_info(ovl, &info);
 953                 }
 954         }
 955         /* Turn off the pipeline */
 956         ret = omapvid_apply_changes(vout);
 957         if (ret)
 958                 v4l2_warn(&vout->vid_dev->v4l2_dev,
 959                                 "Unable to apply changes\n");
 960
 961         /* Free all buffers */
 962         omap_vout_free_extra_buffers(vout);
 963
 964         /* Free the VRFB buffers only if they are allocated
 965          * during reqbufs.  Don't free if init time allocated
 966          */
 967         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 968                 if (!vout->vrfb_static_allocation)
 969                         omap_vout_free_vrfb_buffers(vout);
 970         }
 971         videobuf_mmap_free(q);
 972
 973         /* Even if apply changes fails we should continue
 974            freeing allocated memory */
 975         if (vout->streaming) {
 976                 u32 mask = 0;
 977
 978                 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN |
 979                         DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2;
 980                 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
 981                 vout->streaming = 0;
 982
 983                 videobuf_streamoff(q);
 984                 videobuf_queue_cancel(q);
 985         }
 986
 987         if (vout->mmap_count != 0)
 988                 vout->mmap_count = 0;
 989
 990         vout->opened -= 1;
 991         file->private_data = NULL;
 992
 993         if (vout->buffer_allocated)
 994                 videobuf_mmap_free(q);
 995
 996         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
 997         return ret;
 998 }
 999
1000 static int omap_vout_open(struct file *file)
1001 {
1002         struct videobuf_queue *q;
1003         struct omap_vout_device *vout = NULL;
1004
1005         vout = video_drvdata(file);
1006         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
1007
1008         if (vout == NULL)
1009                 return -ENODEV;
1010
1011         /* for now, we only support single open */
1012         if (vout->opened)
1013                 return -EBUSY;
1014
1015         vout->opened += 1;
1016
1017         file->private_data = vout;
1018         vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1019
1020         q = &vout->vbq;
1021         video_vbq_ops.buf_setup = omap_vout_buffer_setup;
1022         video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
1023         video_vbq_ops.buf_release = omap_vout_buffer_release;
1024         video_vbq_ops.buf_queue = omap_vout_buffer_queue;
1025         spin_lock_init(&vout->vbq_lock);
1026
1027         videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
1028                         &vout->vbq_lock, vout->type, V4L2_FIELD_NONE,
1029                         sizeof(struct videobuf_buffer), vout, NULL);
1030
1031         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1032         return 0;
1033 }
1034
1035 /*
1036  * V4L2 ioctls
1037  */
1038 static int vidioc_querycap(struct file *file, void *fh,
1039                 struct v4l2_capability *cap)
1040 {
1041         struct omap_vout_device *vout = fh;
1042
1043         strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
1044         strlcpy(cap->card, vout->vfd->name, sizeof(cap->card));
1045         cap->bus_info[0] = '\0';
1046         cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
1047                 V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
1048
1049         return 0;
1050 }
1051
1052 static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
1053                         struct v4l2_fmtdesc *fmt)
1054 {
1055         int index = fmt->index;
1056
1057         if (index >= NUM_OUTPUT_FORMATS)
1058                 return -EINVAL;
1059
1060         fmt->flags = omap_formats[index].flags;
1061         strlcpy(fmt->description, omap_formats[index].description,
1062                         sizeof(fmt->description));
1063         fmt->pixelformat = omap_formats[index].pixelformat;
1064
1065         return 0;
1066 }
1067
1068 static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
1069                         struct v4l2_format *f)
1070 {
1071         struct omap_vout_device *vout = fh;
1072
1073         f->fmt.pix = vout->pix;
1074         return 0;
1075
1076 }
1077
1078 static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
1079                         struct v4l2_format *f)
1080 {
1081         struct omap_overlay *ovl;
1082         struct omapvideo_info *ovid;
1083         struct omap_video_timings *timing;
1084         struct omap_vout_device *vout = fh;
1085
1086         ovid = &vout->vid_info;
1087         ovl = ovid->overlays[0];
1088
1089         if (!ovl->manager || !ovl->manager->device)
1090                 return -EINVAL;
1091         /* get the display device attached to the overlay */
1092         timing = &ovl->manager->device->panel.timings;
1093
1094         vout->fbuf.fmt.height = timing->y_res;
1095         vout->fbuf.fmt.width = timing->x_res;
1096
1097         omap_vout_try_format(&f->fmt.pix);
1098         return 0;
1099 }
1100
1101 static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
1102                         struct v4l2_format *f)
1103 {
1104         int ret, bpp;
1105         struct omap_overlay *ovl;
1106         struct omapvideo_info *ovid;
1107         struct omap_video_timings *timing;
1108         struct omap_vout_device *vout = fh;
1109
1110         if (vout->streaming)
1111                 return -EBUSY;
1112
1113         mutex_lock(&vout->lock);
1114
1115         ovid = &vout->vid_info;
1116         ovl = ovid->overlays[0];
1117
1118         /* get the display device attached to the overlay */
1119         if (!ovl->manager || !ovl->manager->device) {
1120                 ret = -EINVAL;
1121                 goto s_fmt_vid_out_exit;
1122         }
1123         timing = &ovl->manager->device->panel.timings;
1124
1125         /* We dont support RGB24-packed mode if vrfb rotation
1126          * is enabled*/
1127         if ((is_rotation_enabled(vout)) &&
1128                         f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1129                 ret = -EINVAL;
1130                 goto s_fmt_vid_out_exit;
1131         }
1132
1133         /* get the framebuffer parameters */
1134
1135         if (is_rotation_90_or_270(vout)) {
1136                 vout->fbuf.fmt.height = timing->x_res;
1137                 vout->fbuf.fmt.width = timing->y_res;
1138         } else {
1139                 vout->fbuf.fmt.height = timing->y_res;
1140                 vout->fbuf.fmt.width = timing->x_res;
1141         }
1142
1143         /* change to samller size is OK */
1144
1145         bpp = omap_vout_try_format(&f->fmt.pix);
1146         f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
1147
1148         /* try & set the new output format */
1149         vout->bpp = bpp;
1150         vout->pix = f->fmt.pix;
1151         vout->vrfb_bpp = 1;
1152
1153         /* If YUYV then vrfb bpp is 2, for  others its 1 */
1154         if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
1155                         V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
1156                 vout->vrfb_bpp = 2;
1157
1158         /* set default crop and win */
1159         omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
1160
1161         /* Save the changes in the overlay strcuture */
1162         ret = omapvid_init(vout, 0);
1163         if (ret) {
1164                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1165                 goto s_fmt_vid_out_exit;
1166         }
1167
1168         ret = 0;
1169
1170 s_fmt_vid_out_exit:
1171         mutex_unlock(&vout->lock);
1172         return ret;
1173 }
1174
1175 static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
1176                         struct v4l2_format *f)
1177 {
1178         int ret = 0;
1179         struct omap_vout_device *vout = fh;
1180         struct omap_overlay *ovl;
1181         struct omapvideo_info *ovid;
1182         struct v4l2_window *win = &f->fmt.win;
1183
1184         ovid = &vout->vid_info;
1185         ovl = ovid->overlays[0];
1186
1187         ret = omap_vout_try_window(&vout->fbuf, win);
1188
1189         if (!ret) {
1190                 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1191                         win->global_alpha = 255;
1192                 else
1193                         win->global_alpha = f->fmt.win.global_alpha;
1194         }
1195
1196         return ret;
1197 }
1198
1199 static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
1200                         struct v4l2_format *f)
1201 {
1202         int ret = 0;
1203         struct omap_overlay *ovl;
1204         struct omapvideo_info *ovid;
1205         struct omap_vout_device *vout = fh;
1206         struct v4l2_window *win = &f->fmt.win;
1207
1208         mutex_lock(&vout->lock);
1209         ovid = &vout->vid_info;
1210         ovl = ovid->overlays[0];
1211
1212         ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
1213         if (!ret) {
1214                 /* Video1 plane does not support global alpha on OMAP3 */
1215                 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1216                         vout->win.global_alpha = 255;
1217                 else
1218                         vout->win.global_alpha = f->fmt.win.global_alpha;
1219
1220                 vout->win.chromakey = f->fmt.win.chromakey;
1221         }
1222         mutex_unlock(&vout->lock);
1223         return ret;
1224 }
1225
1226 static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh,
1227                         struct v4l2_fmtdesc *fmt)
1228 {
1229         int index = fmt->index;
1230
1231         if (index >= NUM_OUTPUT_FORMATS)
1232                 return -EINVAL;
1233
1234         fmt->flags = omap_formats[index].flags;
1235         strlcpy(fmt->description, omap_formats[index].description,
1236                         sizeof(fmt->description));
1237         fmt->pixelformat = omap_formats[index].pixelformat;
1238         return 0;
1239 }
1240
1241 static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
1242                         struct v4l2_format *f)
1243 {
1244         u32 key_value =  0;
1245         struct omap_overlay *ovl;
1246         struct omapvideo_info *ovid;
1247         struct omap_vout_device *vout = fh;
1248         struct omap_overlay_manager_info info;
1249         struct v4l2_window *win = &f->fmt.win;
1250
1251         ovid = &vout->vid_info;
1252         ovl = ovid->overlays[0];
1253
1254         win->w = vout->win.w;
1255         win->field = vout->win.field;
1256         win->global_alpha = vout->win.global_alpha;
1257
1258         if (ovl->manager && ovl->manager->get_manager_info) {
1259                 ovl->manager->get_manager_info(ovl->manager, &info);
1260                 key_value = info.trans_key;
1261         }
1262         win->chromakey = key_value;
1263         return 0;
1264 }
1265
1266 static int vidioc_cropcap(struct file *file, void *fh,
1267                 struct v4l2_cropcap *cropcap)
1268 {
1269         struct omap_vout_device *vout = fh;
1270         struct v4l2_pix_format *pix = &vout->pix;
1271
1272         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1273                 return -EINVAL;
1274
1275         /* Width and height are always even */
1276         cropcap->bounds.width = pix->width & ~1;
1277         cropcap->bounds.height = pix->height & ~1;
1278
1279         omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect);
1280         cropcap->pixelaspect.numerator = 1;
1281         cropcap->pixelaspect.denominator = 1;
1282         return 0;
1283 }
1284
1285 static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1286 {
1287         struct omap_vout_device *vout = fh;
1288
1289         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1290                 return -EINVAL;
1291         crop->c = vout->crop;
1292         return 0;
1293 }
1294
1295 static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1296 {
1297         int ret = -EINVAL;
1298         struct omap_vout_device *vout = fh;
1299         struct omapvideo_info *ovid;
1300         struct omap_overlay *ovl;
1301         struct omap_video_timings *timing;
1302
1303         if (vout->streaming)
1304                 return -EBUSY;
1305
1306         mutex_lock(&vout->lock);
1307         ovid = &vout->vid_info;
1308         ovl = ovid->overlays[0];
1309
1310         if (!ovl->manager || !ovl->manager->device) {
1311                 ret = -EINVAL;
1312                 goto s_crop_err;
1313         }
1314         /* get the display device attached to the overlay */
1315         timing = &ovl->manager->device->panel.timings;
1316
1317         if (is_rotation_90_or_270(vout)) {
1318                 vout->fbuf.fmt.height = timing->x_res;
1319                 vout->fbuf.fmt.width = timing->y_res;
1320         } else {
1321                 vout->fbuf.fmt.height = timing->y_res;
1322                 vout->fbuf.fmt.width = timing->x_res;
1323         }
1324
1325         if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1326                 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
1327                                 &vout->fbuf, &crop->c);
1328
1329 s_crop_err:
1330         mutex_unlock(&vout->lock);
1331         return ret;
1332 }
1333
1334 static int vidioc_queryctrl(struct file *file, void *fh,
1335                 struct v4l2_queryctrl *ctrl)
1336 {
1337         int ret = 0;
1338
1339         switch (ctrl->id) {
1340         case V4L2_CID_ROTATE:
1341                 ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0);
1342                 break;
1343         case V4L2_CID_BG_COLOR:
1344                 ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0);
1345                 break;
1346         case V4L2_CID_VFLIP:
1347                 ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
1348                 break;
1349         default:
1350                 ctrl->name[0] = '\0';
1351                 ret = -EINVAL;
1352         }
1353         return ret;
1354 }
1355
1356 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
1357 {
1358         int ret = 0;
1359         struct omap_vout_device *vout = fh;
1360
1361         switch (ctrl->id) {
1362         case V4L2_CID_ROTATE:
1363                 ctrl->value = vout->control[0].value;
1364                 break;
1365         case V4L2_CID_BG_COLOR:
1366         {
1367                 struct omap_overlay_manager_info info;
1368                 struct omap_overlay *ovl;
1369
1370                 ovl = vout->vid_info.overlays[0];
1371                 if (!ovl->manager || !ovl->manager->get_manager_info) {
1372                         ret = -EINVAL;
1373                         break;
1374                 }
1375
1376                 ovl->manager->get_manager_info(ovl->manager, &info);
1377                 ctrl->value = info.default_color;
1378                 break;
1379         }
1380         case V4L2_CID_VFLIP:
1381                 ctrl->value = vout->control[2].value;
1382                 break;
1383         default:
1384                 ret = -EINVAL;
1385         }
1386         return ret;
1387 }
1388
1389 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
1390 {
1391         int ret = 0;
1392         struct omap_vout_device *vout = fh;
1393
1394         switch (a->id) {
1395         case V4L2_CID_ROTATE:
1396         {
1397                 struct omapvideo_info *ovid;
1398                 int rotation = a->value;
1399
1400                 ovid = &vout->vid_info;
1401
1402                 mutex_lock(&vout->lock);
1403                 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
1404                         mutex_unlock(&vout->lock);
1405                         ret = -ERANGE;
1406                         break;
1407                 }
1408
1409                 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1410                         mutex_unlock(&vout->lock);
1411                         ret = -EINVAL;
1412                         break;
1413                 }
1414
1415                 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
1416                                                         vout->mirror)) {
1417                         mutex_unlock(&vout->lock);
1418                         ret = -EINVAL;
1419                         break;
1420                 }
1421
1422                 vout->control[0].value = rotation;
1423                 mutex_unlock(&vout->lock);
1424                 break;
1425         }
1426         case V4L2_CID_BG_COLOR:
1427         {
1428                 struct omap_overlay *ovl;
1429                 unsigned int  color = a->value;
1430                 struct omap_overlay_manager_info info;
1431
1432                 ovl = vout->vid_info.overlays[0];
1433
1434                 mutex_lock(&vout->lock);
1435                 if (!ovl->manager || !ovl->manager->get_manager_info) {
1436                         mutex_unlock(&vout->lock);
1437                         ret = -EINVAL;
1438                         break;
1439                 }
1440
1441                 ovl->manager->get_manager_info(ovl->manager, &info);
1442                 info.default_color = color;
1443                 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
1444                         mutex_unlock(&vout->lock);
1445                         ret = -EINVAL;
1446                         break;
1447                 }
1448
1449                 vout->control[1].value = color;
1450                 mutex_unlock(&vout->lock);
1451                 break;
1452         }
1453         case V4L2_CID_VFLIP:
1454         {
1455                 struct omap_overlay *ovl;
1456                 struct omapvideo_info *ovid;
1457                 unsigned int  mirror = a->value;
1458
1459                 ovid = &vout->vid_info;
1460                 ovl = ovid->overlays[0];
1461
1462                 mutex_lock(&vout->lock);
1463                 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
1464                         mutex_unlock(&vout->lock);
1465                         ret = -ERANGE;
1466                         break;
1467                 }
1468
1469                 if (mirror  && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1470                         mutex_unlock(&vout->lock);
1471                         ret = -EINVAL;
1472                         break;
1473                 }
1474                 vout->mirror = mirror;
1475                 vout->control[2].value = mirror;
1476                 mutex_unlock(&vout->lock);
1477                 break;
1478         }
1479         default:
1480                 ret = -EINVAL;
1481         }
1482         return ret;
1483 }
1484
1485 static int vidioc_reqbufs(struct file *file, void *fh,
1486                         struct v4l2_requestbuffers *req)
1487 {
1488         int ret = 0;
1489         unsigned int i, num_buffers = 0;
1490         struct omap_vout_device *vout = fh;
1491         struct videobuf_queue *q = &vout->vbq;
1492
1493         if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0))
1494                 return -EINVAL;
1495         /* if memory is not mmp or userptr
1496            return error */
1497         if ((V4L2_MEMORY_MMAP != req->memory) &&
1498                         (V4L2_MEMORY_USERPTR != req->memory))
1499                 return -EINVAL;
1500
1501         mutex_lock(&vout->lock);
1502         /* Cannot be requested when streaming is on */
1503         if (vout->streaming) {
1504                 ret = -EBUSY;
1505                 goto reqbuf_err;
1506         }
1507
1508         /* If buffers are already allocated free them */
1509         if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
1510                 if (vout->mmap_count) {
1511                         ret = -EBUSY;
1512                         goto reqbuf_err;
1513                 }
1514                 num_buffers = (vout->vid == OMAP_VIDEO1) ?
1515                         video1_numbuffers : video2_numbuffers;
1516                 for (i = num_buffers; i < vout->buffer_allocated; i++) {
1517                         omap_vout_free_buffer(vout->buf_virt_addr[i],
1518                                         vout->buffer_size);
1519                         vout->buf_virt_addr[i] = 0;
1520                         vout->buf_phy_addr[i] = 0;
1521                 }
1522                 vout->buffer_allocated = num_buffers;
1523                 videobuf_mmap_free(q);
1524         } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
1525                 if (vout->buffer_allocated) {
1526                         videobuf_mmap_free(q);
1527                         for (i = 0; i < vout->buffer_allocated; i++) {
1528                                 kfree(q->bufs[i]);
1529                                 q->bufs[i] = NULL;
1530                         }
1531                         vout->buffer_allocated = 0;
1532                 }
1533         }
1534
1535         /*store the memory type in data structure */
1536         vout->memory = req->memory;
1537
1538         INIT_LIST_HEAD(&vout->dma_queue);
1539
1540         /* call videobuf_reqbufs api */
1541         ret = videobuf_reqbufs(q, req);
1542         if (ret < 0)
1543                 goto reqbuf_err;
1544
1545         vout->buffer_allocated = req->count;
1546
1547 reqbuf_err:
1548         mutex_unlock(&vout->lock);
1549         return ret;
1550 }
1551
1552 static int vidioc_querybuf(struct file *file, void *fh,
1553                         struct v4l2_buffer *b)
1554 {
1555         struct omap_vout_device *vout = fh;
1556
1557         return videobuf_querybuf(&vout->vbq, b);
1558 }
1559
1560 static int vidioc_qbuf(struct file *file, void *fh,
1561                         struct v4l2_buffer *buffer)
1562 {
1563         struct omap_vout_device *vout = fh;
1564         struct videobuf_queue *q = &vout->vbq;
1565
1566         if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
1567                         (buffer->index >= vout->buffer_allocated) ||
1568                         (q->bufs[buffer->index]->memory != buffer->memory)) {
1569                 return -EINVAL;
1570         }
1571         if (V4L2_MEMORY_USERPTR == buffer->memory) {
1572                 if ((buffer->length < vout->pix.sizeimage) ||
1573                                 (0 == buffer->m.userptr)) {
1574                         return -EINVAL;
1575                 }
1576         }
1577
1578         if ((is_rotation_enabled(vout)) &&
1579                         vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
1580                 v4l2_warn(&vout->vid_dev->v4l2_dev,
1581                                 "DMA Channel not allocated for Rotation\n");
1582                 return -EINVAL;
1583         }
1584
1585         return videobuf_qbuf(q, buffer);
1586 }
1587
1588 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1589 {
1590         struct omap_vout_device *vout = fh;
1591         struct videobuf_queue *q = &vout->vbq;
1592
1593         int ret;
1594         u32 addr;
1595         unsigned long size;
1596         struct videobuf_buffer *vb;
1597
1598         vb = q->bufs[b->index];
1599
1600         if (!vout->streaming)
1601                 return -EINVAL;
1602
1603         if (file->f_flags & O_NONBLOCK)
1604                 /* Call videobuf_dqbuf for non blocking mode */
1605                 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
1606         else
1607                 /* Call videobuf_dqbuf for  blocking mode */
1608                 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
1609
1610         addr = (unsigned long) vout->buf_phy_addr[vb->i];
1611         size = (unsigned long) vb->size;
1612         dma_unmap_single(vout->vid_dev->v4l2_dev.dev,  addr,
1613                                 size, DMA_TO_DEVICE);
1614         return ret;
1615 }
1616
1617 static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1618 {
1619         int ret = 0, j;
1620         u32 addr = 0, mask = 0;
1621         struct omap_vout_device *vout = fh;
1622         struct videobuf_queue *q = &vout->vbq;
1623         struct omapvideo_info *ovid = &vout->vid_info;
1624
1625         mutex_lock(&vout->lock);
1626
1627         if (vout->streaming) {
1628                 ret = -EBUSY;
1629                 goto streamon_err;
1630         }
1631
1632         ret = videobuf_streamon(q);
1633         if (ret)
1634                 goto streamon_err;
1635
1636         if (list_empty(&vout->dma_queue)) {
1637                 ret = -EIO;
1638                 goto streamon_err1;
1639         }
1640
1641         /* Get the next frame from the buffer queue */
1642         vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1643                         struct videobuf_buffer, queue);
1644         /* Remove buffer from the buffer queue */
1645         list_del(&vout->cur_frm->queue);
1646         /* Mark state of the current frame to active */
1647         vout->cur_frm->state = VIDEOBUF_ACTIVE;
1648         /* Initialize field_id and started member */
1649         vout->field_id = 0;
1650
1651         /* set flag here. Next QBUF will start DMA */
1652         vout->streaming = 1;
1653
1654         vout->first_int = 1;
1655
1656         if (omap_vout_calculate_offset(vout)) {
1657                 ret = -EINVAL;
1658                 goto streamon_err1;
1659         }
1660         addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i]
1661                 + vout->cropped_offset;
1662
1663         mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1664                 | DISPC_IRQ_VSYNC2;
1665
1666         omap_dispc_register_isr(omap_vout_isr, vout, mask);
1667
1668         for (j = 0; j < ovid->num_overlays; j++) {
1669                 struct omap_overlay *ovl = ovid->overlays[j];
1670
1671                 if (ovl->manager && ovl->manager->device) {
1672                         struct omap_overlay_info info;
1673                         ovl->get_overlay_info(ovl, &info);
1674                         info.enabled = 1;
1675                         info.paddr = addr;
1676                         if (ovl->set_overlay_info(ovl, &info)) {
1677                                 ret = -EINVAL;
1678                                 goto streamon_err1;
1679                         }
1680                 }
1681         }
1682
1683         /* First save the configuration in ovelray structure */
1684         ret = omapvid_init(vout, addr);
1685         if (ret)
1686                 v4l2_err(&vout->vid_dev->v4l2_dev,
1687                                 "failed to set overlay info\n");
1688         /* Enable the pipeline and set the Go bit */
1689         ret = omapvid_apply_changes(vout);
1690         if (ret)
1691                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1692
1693         ret = 0;
1694
1695 streamon_err1:
1696         if (ret)
1697                 ret = videobuf_streamoff(q);
1698 streamon_err:
1699         mutex_unlock(&vout->lock);
1700         return ret;
1701 }
1702
1703 static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1704 {
1705         u32 mask = 0;
1706         int ret = 0, j;
1707         struct omap_vout_device *vout = fh;
1708         struct omapvideo_info *ovid = &vout->vid_info;
1709
1710         if (!vout->streaming)
1711                 return -EINVAL;
1712
1713         vout->streaming = 0;
1714         mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1715                 | DISPC_IRQ_VSYNC2;
1716
1717         omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1718
1719         for (j = 0; j < ovid->num_overlays; j++) {
1720                 struct omap_overlay *ovl = ovid->overlays[j];
1721
1722                 if (ovl->manager && ovl->manager->device) {
1723                         struct omap_overlay_info info;
1724
1725                         ovl->get_overlay_info(ovl, &info);
1726                         info.enabled = 0;
1727                         ret = ovl->set_overlay_info(ovl, &info);
1728                         if (ret)
1729                                 v4l2_err(&vout->vid_dev->v4l2_dev,
1730                                 "failed to update overlay info in streamoff\n");
1731                 }
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         .probe = omap_vout_probe,
2272         .remove = omap_vout_remove,
2273 };
2274
2275 static int __init omap_vout_init(void)
2276 {
2277         if (platform_driver_register(&omap_vout_driver) != 0) {
2278                 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
2279                 return -EINVAL;
2280         }
2281         return 0;
2282 }
2283
2284 static void omap_vout_cleanup(void)
2285 {
2286         platform_driver_unregister(&omap_vout_driver);
2287 }
2288
2289 late_initcall(omap_vout_init);
2290 module_exit(omap_vout_cleanup);