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         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__, info.enabled, 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 void omap_vout_isr(void *arg, unsigned int irqstatus)
 528 {
 529         int ret;
 530         u32 addr, fid;
 531         struct omap_overlay *ovl;
 532         struct timeval timevalue;
 533         struct omapvideo_info *ovid;
 534         struct omap_dss_device *cur_display;
 535         struct omap_vout_device *vout = (struct omap_vout_device *)arg;
 536
 537         if (!vout->streaming)
 538                 return;
 539
 540         ovid = &vout->vid_info;
 541         ovl = ovid->overlays[0];
 542         /* get the display device attached to the overlay */
 543         if (!ovl->manager || !ovl->manager->device)
 544                 return;
 545
 546         cur_display = ovl->manager->device;
 547
 548         spin_lock(&vout->vbq_lock);
 549         do_gettimeofday(&timevalue);
 550
 551         if (cur_display->type != OMAP_DISPLAY_TYPE_VENC) {
 552                 switch (cur_display->type) {
 553                 case OMAP_DISPLAY_TYPE_DPI:
 554                         if (!(irqstatus & (DISPC_IRQ_VSYNC | DISPC_IRQ_VSYNC2)))
 555                                 goto vout_isr_err;
 556                         break;
 557                 case OMAP_DISPLAY_TYPE_HDMI:
 558                         if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
 559                                 goto vout_isr_err;
 560                         break;
 561                 default:
 562                         goto vout_isr_err;
 563                 }
 564                 if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
 565                         vout->cur_frm->ts = timevalue;
 566                         vout->cur_frm->state = VIDEOBUF_DONE;
 567                         wake_up_interruptible(&vout->cur_frm->done);
 568                         vout->cur_frm = vout->next_frm;
 569                 }
 570                 vout->first_int = 0;
 571                 if (list_empty(&vout->dma_queue))
 572                         goto vout_isr_err;
 573
 574                 vout->next_frm = list_entry(vout->dma_queue.next,
 575                                 struct videobuf_buffer, queue);
 576                 list_del(&vout->next_frm->queue);
 577
 578                 vout->next_frm->state = VIDEOBUF_ACTIVE;
 579
 580                 addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
 581                         + vout->cropped_offset;
 582
 583                 /* First save the configuration in ovelray structure */
 584                 ret = omapvid_init(vout, addr);
 585                 if (ret)
 586                         printk(KERN_ERR VOUT_NAME
 587                                 "failed to set overlay info\n");
 588                 /* Enable the pipeline and set the Go bit */
 589                 ret = omapvid_apply_changes(vout);
 590                 if (ret)
 591                         printk(KERN_ERR VOUT_NAME "failed to change mode\n");
 592         } else {
 593
 594                 if (vout->first_int) {
 595                         vout->first_int = 0;
 596                         goto vout_isr_err;
 597                 }
 598                 if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
 599                         fid = 1;
 600                 else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
 601                         fid = 0;
 602                 else
 603                         goto vout_isr_err;
 604
 605                 vout->field_id ^= 1;
 606                 if (fid != vout->field_id) {
 607                         if (0 == fid)
 608                                 vout->field_id = fid;
 609
 610                         goto vout_isr_err;
 611                 }
 612                 if (0 == fid) {
 613                         if (vout->cur_frm == vout->next_frm)
 614                                 goto vout_isr_err;
 615
 616                         vout->cur_frm->ts = timevalue;
 617                         vout->cur_frm->state = VIDEOBUF_DONE;
 618                         wake_up_interruptible(&vout->cur_frm->done);
 619                         vout->cur_frm = vout->next_frm;
 620                 } else if (1 == fid) {
 621                         if (list_empty(&vout->dma_queue) ||
 622                                         (vout->cur_frm != vout->next_frm))
 623                                 goto vout_isr_err;
 624
 625                         vout->next_frm = list_entry(vout->dma_queue.next,
 626                                         struct videobuf_buffer, queue);
 627                         list_del(&vout->next_frm->queue);
 628
 629                         vout->next_frm->state = VIDEOBUF_ACTIVE;
 630                         addr = (unsigned long)
 631                                 vout->queued_buf_addr[vout->next_frm->i] +
 632                                 vout->cropped_offset;
 633                         /* First save the configuration in ovelray structure */
 634                         ret = omapvid_init(vout, addr);
 635                         if (ret)
 636                                 printk(KERN_ERR VOUT_NAME
 637                                                 "failed to set overlay info\n");
 638                         /* Enable the pipeline and set the Go bit */
 639                         ret = omapvid_apply_changes(vout);
 640                         if (ret)
 641                                 printk(KERN_ERR VOUT_NAME
 642                                                 "failed to change mode\n");
 643                 }
 644
 645         }
 646
 647 vout_isr_err:
 648         spin_unlock(&vout->vbq_lock);
 649 }
 650
 651
 652 /* Video buffer call backs */
 653
 654 /*
 655  * Buffer setup function is called by videobuf layer when REQBUF ioctl is
 656  * called. This is used to setup buffers and return size and count of
 657  * buffers allocated. After the call to this buffer, videobuf layer will
 658  * setup buffer queue depending on the size and count of buffers
 659  */
 660 static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
 661                           unsigned int *size)
 662 {
 663         int startindex = 0, i, j;
 664         u32 phy_addr = 0, virt_addr = 0;
 665         struct omap_vout_device *vout = q->priv_data;
 666         struct omapvideo_info *ovid = &vout->vid_info;
 667
 668         if (!vout)
 669                 return -EINVAL;
 670
 671         if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
 672                 return -EINVAL;
 673
 674         startindex = (vout->vid == OMAP_VIDEO1) ?
 675                 video1_numbuffers : video2_numbuffers;
 676         if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
 677                 *count = startindex;
 678
 679         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 680                 if (omap_vout_vrfb_buffer_setup(vout, count, startindex))
 681                         return -ENOMEM;
 682         }
 683
 684         if (V4L2_MEMORY_MMAP != vout->memory)
 685                 return 0;
 686
 687         /* Now allocated the V4L2 buffers */
 688         *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp);
 689         startindex = (vout->vid == OMAP_VIDEO1) ?
 690                 video1_numbuffers : video2_numbuffers;
 691
 692         /* Check the size of the buffer */
 693         if (*size > vout->buffer_size) {
 694                 v4l2_err(&vout->vid_dev->v4l2_dev,
 695                                 "buffer allocation mismatch [%u] [%u]\n",
 696                                 *size, vout->buffer_size);
 697                 return -ENOMEM;
 698         }
 699
 700         for (i = startindex; i < *count; i++) {
 701                 vout->buffer_size = *size;
 702
 703                 virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
 704                                 &phy_addr);
 705                 if (!virt_addr) {
 706                         if (ovid->rotation_type == VOUT_ROT_NONE) {
 707                                 break;
 708                         } else {
 709                                 if (!is_rotation_enabled(vout))
 710                                         break;
 711                         /* Free the VRFB buffers if no space for V4L2 buffers */
 712                         for (j = i; j < *count; j++) {
 713                                 omap_vout_free_buffer(
 714                                                 vout->smsshado_virt_addr[j],
 715                                                 vout->smsshado_size);
 716                                 vout->smsshado_virt_addr[j] = 0;
 717                                 vout->smsshado_phy_addr[j] = 0;
 718                                 }
 719                         }
 720                 }
 721                 vout->buf_virt_addr[i] = virt_addr;
 722                 vout->buf_phy_addr[i] = phy_addr;
 723         }
 724         *count = vout->buffer_allocated = i;
 725
 726         return 0;
 727 }
 728
 729 /*
 730  * Free the V4L2 buffers additionally allocated than default
 731  * number of buffers
 732  */
 733 static void omap_vout_free_extra_buffers(struct omap_vout_device *vout)
 734 {
 735         int num_buffers = 0, i;
 736
 737         num_buffers = (vout->vid == OMAP_VIDEO1) ?
 738                 video1_numbuffers : video2_numbuffers;
 739
 740         for (i = num_buffers; i < vout->buffer_allocated; i++) {
 741                 if (vout->buf_virt_addr[i])
 742                         omap_vout_free_buffer(vout->buf_virt_addr[i],
 743                                         vout->buffer_size);
 744
 745                 vout->buf_virt_addr[i] = 0;
 746                 vout->buf_phy_addr[i] = 0;
 747         }
 748         vout->buffer_allocated = num_buffers;
 749 }
 750
 751 /*
 752  * This function will be called when VIDIOC_QBUF ioctl is called.
 753  * It prepare buffers before give out for the display. This function
 754  * converts user space virtual address into physical address if userptr memory
 755  * exchange mechanism is used. If rotation is enabled, it copies entire
 756  * buffer into VRFB memory space before giving it to the DSS.
 757  */
 758 static int omap_vout_buffer_prepare(struct videobuf_queue *q,
 759                         struct videobuf_buffer *vb,
 760                         enum v4l2_field field)
 761 {
 762         struct omap_vout_device *vout = q->priv_data;
 763         struct omapvideo_info *ovid = &vout->vid_info;
 764
 765         if (VIDEOBUF_NEEDS_INIT == vb->state) {
 766                 vb->width = vout->pix.width;
 767                 vb->height = vout->pix.height;
 768                 vb->size = vb->width * vb->height * vout->bpp;
 769                 vb->field = field;
 770         }
 771         vb->state = VIDEOBUF_PREPARED;
 772         /* if user pointer memory mechanism is used, get the physical
 773          * address of the buffer
 774          */
 775         if (V4L2_MEMORY_USERPTR == vb->memory) {
 776                 if (0 == vb->baddr)
 777                         return -EINVAL;
 778                 /* Physical address */
 779                 vout->queued_buf_addr[vb->i] = (u8 *)
 780                         omap_vout_uservirt_to_phys(vb->baddr);
 781         } else {
 782                 u32 addr, dma_addr;
 783                 unsigned long size;
 784
 785                 addr = (unsigned long) vout->buf_virt_addr[vb->i];
 786                 size = (unsigned long) vb->size;
 787
 788                 dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr,
 789                                 size, DMA_TO_DEVICE);
 790                 if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr))
 791                         v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n");
 792
 793                 vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i];
 794         }
 795
 796         if (ovid->rotation_type == VOUT_ROT_VRFB)
 797                 return omap_vout_prepare_vrfb(vout, vb);
 798         else
 799                 return 0;
 800 }
 801
 802 /*
 803  * Buffer queue function will be called from the videobuf layer when _QBUF
 804  * ioctl is called. It is used to enqueue buffer, which is ready to be
 805  * displayed.
 806  */
 807 static void omap_vout_buffer_queue(struct videobuf_queue *q,
 808                           struct videobuf_buffer *vb)
 809 {
 810         struct omap_vout_device *vout = q->priv_data;
 811
 812         /* Driver is also maintainig a queue. So enqueue buffer in the driver
 813          * queue */
 814         list_add_tail(&vb->queue, &vout->dma_queue);
 815
 816         vb->state = VIDEOBUF_QUEUED;
 817 }
 818
 819 /*
 820  * Buffer release function is called from videobuf layer to release buffer
 821  * which are already allocated
 822  */
 823 static void omap_vout_buffer_release(struct videobuf_queue *q,
 824                             struct videobuf_buffer *vb)
 825 {
 826         struct omap_vout_device *vout = q->priv_data;
 827
 828         vb->state = VIDEOBUF_NEEDS_INIT;
 829
 830         if (V4L2_MEMORY_MMAP != vout->memory)
 831                 return;
 832 }
 833
 834 /*
 835  *  File operations
 836  */
 837 static unsigned int omap_vout_poll(struct file *file,
 838                                    struct poll_table_struct *wait)
 839 {
 840         struct omap_vout_device *vout = file->private_data;
 841         struct videobuf_queue *q = &vout->vbq;
 842
 843         return videobuf_poll_stream(file, q, wait);
 844 }
 845
 846 static void omap_vout_vm_open(struct vm_area_struct *vma)
 847 {
 848         struct omap_vout_device *vout = vma->vm_private_data;
 849
 850         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 851                 "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
 852         vout->mmap_count++;
 853 }
 854
 855 static void omap_vout_vm_close(struct vm_area_struct *vma)
 856 {
 857         struct omap_vout_device *vout = vma->vm_private_data;
 858
 859         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 860                 "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
 861         vout->mmap_count--;
 862 }
 863
 864 static struct vm_operations_struct omap_vout_vm_ops = {
 865         .open   = omap_vout_vm_open,
 866         .close  = omap_vout_vm_close,
 867 };
 868
 869 static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
 870 {
 871         int i;
 872         void *pos;
 873         unsigned long start = vma->vm_start;
 874         unsigned long size = (vma->vm_end - vma->vm_start);
 875         struct omap_vout_device *vout = file->private_data;
 876         struct videobuf_queue *q = &vout->vbq;
 877
 878         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 879                         " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__,
 880                         vma->vm_pgoff, vma->vm_start, vma->vm_end);
 881
 882         /* look for the buffer to map */
 883         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
 884                 if (NULL == q->bufs[i])
 885                         continue;
 886                 if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
 887                         continue;
 888                 if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
 889                         break;
 890         }
 891
 892         if (VIDEO_MAX_FRAME == i) {
 893                 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 894                                 "offset invalid [offset=0x%lx]\n",
 895                                 (vma->vm_pgoff << PAGE_SHIFT));
 896                 return -EINVAL;
 897         }
 898         /* Check the size of the buffer */
 899         if (size > vout->buffer_size) {
 900                 v4l2_err(&vout->vid_dev->v4l2_dev,
 901                                 "insufficient memory [%lu] [%u]\n",
 902                                 size, vout->buffer_size);
 903                 return -ENOMEM;
 904         }
 905
 906         q->bufs[i]->baddr = vma->vm_start;
 907
 908         vma->vm_flags |= VM_RESERVED;
 909         vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 910         vma->vm_ops = &omap_vout_vm_ops;
 911         vma->vm_private_data = (void *) vout;
 912         pos = (void *)vout->buf_virt_addr[i];
 913         vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT;
 914         while (size > 0) {
 915                 unsigned long pfn;
 916                 pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
 917                 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
 918                         return -EAGAIN;
 919                 start += PAGE_SIZE;
 920                 pos += PAGE_SIZE;
 921                 size -= PAGE_SIZE;
 922         }
 923         vout->mmap_count++;
 924         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
 925
 926         return 0;
 927 }
 928
 929 static int omap_vout_release(struct file *file)
 930 {
 931         unsigned int ret, i;
 932         struct videobuf_queue *q;
 933         struct omapvideo_info *ovid;
 934         struct omap_vout_device *vout = file->private_data;
 935
 936         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
 937         ovid = &vout->vid_info;
 938
 939         if (!vout)
 940                 return 0;
 941
 942         q = &vout->vbq;
 943         /* Disable all the overlay managers connected with this interface */
 944         for (i = 0; i < ovid->num_overlays; i++) {
 945                 struct omap_overlay *ovl = ovid->overlays[i];
 946                 if (ovl->manager && ovl->manager->device) {
 947                         struct omap_overlay_info info;
 948                         ovl->get_overlay_info(ovl, &info);
 949                         info.enabled = 0;
 950                         ovl->set_overlay_info(ovl, &info);
 951                 }
 952         }
 953         /* Turn off the pipeline */
 954         ret = omapvid_apply_changes(vout);
 955         if (ret)
 956                 v4l2_warn(&vout->vid_dev->v4l2_dev,
 957                                 "Unable to apply changes\n");
 958
 959         /* Free all buffers */
 960         omap_vout_free_extra_buffers(vout);
 961
 962         /* Free the VRFB buffers only if they are allocated
 963          * during reqbufs.  Don't free if init time allocated
 964          */
 965         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 966                 if (!vout->vrfb_static_allocation)
 967                         omap_vout_free_vrfb_buffers(vout);
 968         }
 969         videobuf_mmap_free(q);
 970
 971         /* Even if apply changes fails we should continue
 972            freeing allocated memory */
 973         if (vout->streaming) {
 974                 u32 mask = 0;
 975
 976                 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN |
 977                         DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2;
 978                 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
 979                 vout->streaming = 0;
 980
 981                 videobuf_streamoff(q);
 982                 videobuf_queue_cancel(q);
 983         }
 984
 985         if (vout->mmap_count != 0)
 986                 vout->mmap_count = 0;
 987
 988         vout->opened -= 1;
 989         file->private_data = NULL;
 990
 991         if (vout->buffer_allocated)
 992                 videobuf_mmap_free(q);
 993
 994         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
 995         return ret;
 996 }
 997
 998 static int omap_vout_open(struct file *file)
 999 {
1000         struct videobuf_queue *q;
1001         struct omap_vout_device *vout = NULL;
1002
1003         vout = video_drvdata(file);
1004         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
1005
1006         if (vout == NULL)
1007                 return -ENODEV;
1008
1009         /* for now, we only support single open */
1010         if (vout->opened)
1011                 return -EBUSY;
1012
1013         vout->opened += 1;
1014
1015         file->private_data = vout;
1016         vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1017
1018         q = &vout->vbq;
1019         video_vbq_ops.buf_setup = omap_vout_buffer_setup;
1020         video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
1021         video_vbq_ops.buf_release = omap_vout_buffer_release;
1022         video_vbq_ops.buf_queue = omap_vout_buffer_queue;
1023         spin_lock_init(&vout->vbq_lock);
1024
1025         videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
1026                         &vout->vbq_lock, vout->type, V4L2_FIELD_NONE,
1027                         sizeof(struct videobuf_buffer), vout, NULL);
1028
1029         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1030         return 0;
1031 }
1032
1033 /*
1034  * V4L2 ioctls
1035  */
1036 static int vidioc_querycap(struct file *file, void *fh,
1037                 struct v4l2_capability *cap)
1038 {
1039         struct omap_vout_device *vout = fh;
1040
1041         strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
1042         strlcpy(cap->card, vout->vfd->name, sizeof(cap->card));
1043         cap->bus_info[0] = '\0';
1044         cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT;
1045
1046         return 0;
1047 }
1048
1049 static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
1050                         struct v4l2_fmtdesc *fmt)
1051 {
1052         int index = fmt->index;
1053
1054         if (index >= NUM_OUTPUT_FORMATS)
1055                 return -EINVAL;
1056
1057         fmt->flags = omap_formats[index].flags;
1058         strlcpy(fmt->description, omap_formats[index].description,
1059                         sizeof(fmt->description));
1060         fmt->pixelformat = omap_formats[index].pixelformat;
1061
1062         return 0;
1063 }
1064
1065 static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
1066                         struct v4l2_format *f)
1067 {
1068         struct omap_vout_device *vout = fh;
1069
1070         f->fmt.pix = vout->pix;
1071         return 0;
1072
1073 }
1074
1075 static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
1076                         struct v4l2_format *f)
1077 {
1078         struct omap_overlay *ovl;
1079         struct omapvideo_info *ovid;
1080         struct omap_video_timings *timing;
1081         struct omap_vout_device *vout = fh;
1082
1083         ovid = &vout->vid_info;
1084         ovl = ovid->overlays[0];
1085
1086         if (!ovl->manager || !ovl->manager->device)
1087                 return -EINVAL;
1088         /* get the display device attached to the overlay */
1089         timing = &ovl->manager->device->panel.timings;
1090
1091         vout->fbuf.fmt.height = timing->y_res;
1092         vout->fbuf.fmt.width = timing->x_res;
1093
1094         omap_vout_try_format(&f->fmt.pix);
1095         return 0;
1096 }
1097
1098 static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
1099                         struct v4l2_format *f)
1100 {
1101         int ret, bpp;
1102         struct omap_overlay *ovl;
1103         struct omapvideo_info *ovid;
1104         struct omap_video_timings *timing;
1105         struct omap_vout_device *vout = fh;
1106
1107         if (vout->streaming)
1108                 return -EBUSY;
1109
1110         mutex_lock(&vout->lock);
1111
1112         ovid = &vout->vid_info;
1113         ovl = ovid->overlays[0];
1114
1115         /* get the display device attached to the overlay */
1116         if (!ovl->manager || !ovl->manager->device) {
1117                 ret = -EINVAL;
1118                 goto s_fmt_vid_out_exit;
1119         }
1120         timing = &ovl->manager->device->panel.timings;
1121
1122         /* We dont support RGB24-packed mode if vrfb rotation
1123          * is enabled*/
1124         if ((is_rotation_enabled(vout)) &&
1125                         f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1126                 ret = -EINVAL;
1127                 goto s_fmt_vid_out_exit;
1128         }
1129
1130         /* get the framebuffer parameters */
1131
1132         if (is_rotation_90_or_270(vout)) {
1133                 vout->fbuf.fmt.height = timing->x_res;
1134                 vout->fbuf.fmt.width = timing->y_res;
1135         } else {
1136                 vout->fbuf.fmt.height = timing->y_res;
1137                 vout->fbuf.fmt.width = timing->x_res;
1138         }
1139
1140         /* change to samller size is OK */
1141
1142         bpp = omap_vout_try_format(&f->fmt.pix);
1143         f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
1144
1145         /* try & set the new output format */
1146         vout->bpp = bpp;
1147         vout->pix = f->fmt.pix;
1148         vout->vrfb_bpp = 1;
1149
1150         /* If YUYV then vrfb bpp is 2, for  others its 1 */
1151         if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
1152                         V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
1153                 vout->vrfb_bpp = 2;
1154
1155         /* set default crop and win */
1156         omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
1157
1158         /* Save the changes in the overlay strcuture */
1159         ret = omapvid_init(vout, 0);
1160         if (ret) {
1161                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1162                 goto s_fmt_vid_out_exit;
1163         }
1164
1165         ret = 0;
1166
1167 s_fmt_vid_out_exit:
1168         mutex_unlock(&vout->lock);
1169         return ret;
1170 }
1171
1172 static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
1173                         struct v4l2_format *f)
1174 {
1175         int ret = 0;
1176         struct omap_vout_device *vout = fh;
1177         struct omap_overlay *ovl;
1178         struct omapvideo_info *ovid;
1179         struct v4l2_window *win = &f->fmt.win;
1180
1181         ovid = &vout->vid_info;
1182         ovl = ovid->overlays[0];
1183
1184         ret = omap_vout_try_window(&vout->fbuf, win);
1185
1186         if (!ret) {
1187                 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1188                         win->global_alpha = 255;
1189                 else
1190                         win->global_alpha = f->fmt.win.global_alpha;
1191         }
1192
1193         return ret;
1194 }
1195
1196 static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
1197                         struct v4l2_format *f)
1198 {
1199         int ret = 0;
1200         struct omap_overlay *ovl;
1201         struct omapvideo_info *ovid;
1202         struct omap_vout_device *vout = fh;
1203         struct v4l2_window *win = &f->fmt.win;
1204
1205         mutex_lock(&vout->lock);
1206         ovid = &vout->vid_info;
1207         ovl = ovid->overlays[0];
1208
1209         ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
1210         if (!ret) {
1211                 /* Video1 plane does not support global alpha on OMAP3 */
1212                 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1213                         vout->win.global_alpha = 255;
1214                 else
1215                         vout->win.global_alpha = f->fmt.win.global_alpha;
1216
1217                 vout->win.chromakey = f->fmt.win.chromakey;
1218         }
1219         mutex_unlock(&vout->lock);
1220         return ret;
1221 }
1222
1223 static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh,
1224                         struct v4l2_fmtdesc *fmt)
1225 {
1226         int index = fmt->index;
1227
1228         if (index >= NUM_OUTPUT_FORMATS)
1229                 return -EINVAL;
1230
1231         fmt->flags = omap_formats[index].flags;
1232         strlcpy(fmt->description, omap_formats[index].description,
1233                         sizeof(fmt->description));
1234         fmt->pixelformat = omap_formats[index].pixelformat;
1235         return 0;
1236 }
1237
1238 static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
1239                         struct v4l2_format *f)
1240 {
1241         u32 key_value =  0;
1242         struct omap_overlay *ovl;
1243         struct omapvideo_info *ovid;
1244         struct omap_vout_device *vout = fh;
1245         struct omap_overlay_manager_info info;
1246         struct v4l2_window *win = &f->fmt.win;
1247
1248         ovid = &vout->vid_info;
1249         ovl = ovid->overlays[0];
1250
1251         win->w = vout->win.w;
1252         win->field = vout->win.field;
1253         win->global_alpha = vout->win.global_alpha;
1254
1255         if (ovl->manager && ovl->manager->get_manager_info) {
1256                 ovl->manager->get_manager_info(ovl->manager, &info);
1257                 key_value = info.trans_key;
1258         }
1259         win->chromakey = key_value;
1260         return 0;
1261 }
1262
1263 static int vidioc_cropcap(struct file *file, void *fh,
1264                 struct v4l2_cropcap *cropcap)
1265 {
1266         struct omap_vout_device *vout = fh;
1267         struct v4l2_pix_format *pix = &vout->pix;
1268
1269         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1270                 return -EINVAL;
1271
1272         /* Width and height are always even */
1273         cropcap->bounds.width = pix->width & ~1;
1274         cropcap->bounds.height = pix->height & ~1;
1275
1276         omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect);
1277         cropcap->pixelaspect.numerator = 1;
1278         cropcap->pixelaspect.denominator = 1;
1279         return 0;
1280 }
1281
1282 static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1283 {
1284         struct omap_vout_device *vout = fh;
1285
1286         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1287                 return -EINVAL;
1288         crop->c = vout->crop;
1289         return 0;
1290 }
1291
1292 static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1293 {
1294         int ret = -EINVAL;
1295         struct omap_vout_device *vout = fh;
1296         struct omapvideo_info *ovid;
1297         struct omap_overlay *ovl;
1298         struct omap_video_timings *timing;
1299
1300         if (vout->streaming)
1301                 return -EBUSY;
1302
1303         mutex_lock(&vout->lock);
1304         ovid = &vout->vid_info;
1305         ovl = ovid->overlays[0];
1306
1307         if (!ovl->manager || !ovl->manager->device) {
1308                 ret = -EINVAL;
1309                 goto s_crop_err;
1310         }
1311         /* get the display device attached to the overlay */
1312         timing = &ovl->manager->device->panel.timings;
1313
1314         if (is_rotation_90_or_270(vout)) {
1315                 vout->fbuf.fmt.height = timing->x_res;
1316                 vout->fbuf.fmt.width = timing->y_res;
1317         } else {
1318                 vout->fbuf.fmt.height = timing->y_res;
1319                 vout->fbuf.fmt.width = timing->x_res;
1320         }
1321
1322         if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1323                 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
1324                                 &vout->fbuf, &crop->c);
1325
1326 s_crop_err:
1327         mutex_unlock(&vout->lock);
1328         return ret;
1329 }
1330
1331 static int vidioc_queryctrl(struct file *file, void *fh,
1332                 struct v4l2_queryctrl *ctrl)
1333 {
1334         int ret = 0;
1335
1336         switch (ctrl->id) {
1337         case V4L2_CID_ROTATE:
1338                 ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0);
1339                 break;
1340         case V4L2_CID_BG_COLOR:
1341                 ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0);
1342                 break;
1343         case V4L2_CID_VFLIP:
1344                 ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
1345                 break;
1346         default:
1347                 ctrl->name[0] = '\0';
1348                 ret = -EINVAL;
1349         }
1350         return ret;
1351 }
1352
1353 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
1354 {
1355         int ret = 0;
1356         struct omap_vout_device *vout = fh;
1357
1358         switch (ctrl->id) {
1359         case V4L2_CID_ROTATE:
1360                 ctrl->value = vout->control[0].value;
1361                 break;
1362         case V4L2_CID_BG_COLOR:
1363         {
1364                 struct omap_overlay_manager_info info;
1365                 struct omap_overlay *ovl;
1366
1367                 ovl = vout->vid_info.overlays[0];
1368                 if (!ovl->manager || !ovl->manager->get_manager_info) {
1369                         ret = -EINVAL;
1370                         break;
1371                 }
1372
1373                 ovl->manager->get_manager_info(ovl->manager, &info);
1374                 ctrl->value = info.default_color;
1375                 break;
1376         }
1377         case V4L2_CID_VFLIP:
1378                 ctrl->value = vout->control[2].value;
1379                 break;
1380         default:
1381                 ret = -EINVAL;
1382         }
1383         return ret;
1384 }
1385
1386 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
1387 {
1388         int ret = 0;
1389         struct omap_vout_device *vout = fh;
1390
1391         switch (a->id) {
1392         case V4L2_CID_ROTATE:
1393         {
1394                 struct omapvideo_info *ovid;
1395                 int rotation = a->value;
1396
1397                 ovid = &vout->vid_info;
1398
1399                 mutex_lock(&vout->lock);
1400                 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
1401                         mutex_unlock(&vout->lock);
1402                         ret = -ERANGE;
1403                         break;
1404                 }
1405
1406                 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1407                         mutex_unlock(&vout->lock);
1408                         ret = -EINVAL;
1409                         break;
1410                 }
1411
1412                 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
1413                                                         vout->mirror)) {
1414                         mutex_unlock(&vout->lock);
1415                         ret = -EINVAL;
1416                         break;
1417                 }
1418
1419                 vout->control[0].value = rotation;
1420                 mutex_unlock(&vout->lock);
1421                 break;
1422         }
1423         case V4L2_CID_BG_COLOR:
1424         {
1425                 struct omap_overlay *ovl;
1426                 unsigned int  color = a->value;
1427                 struct omap_overlay_manager_info info;
1428
1429                 ovl = vout->vid_info.overlays[0];
1430
1431                 mutex_lock(&vout->lock);
1432                 if (!ovl->manager || !ovl->manager->get_manager_info) {
1433                         mutex_unlock(&vout->lock);
1434                         ret = -EINVAL;
1435                         break;
1436                 }
1437
1438                 ovl->manager->get_manager_info(ovl->manager, &info);
1439                 info.default_color = color;
1440                 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
1441                         mutex_unlock(&vout->lock);
1442                         ret = -EINVAL;
1443                         break;
1444                 }
1445
1446                 vout->control[1].value = color;
1447                 mutex_unlock(&vout->lock);
1448                 break;
1449         }
1450         case V4L2_CID_VFLIP:
1451         {
1452                 struct omap_overlay *ovl;
1453                 struct omapvideo_info *ovid;
1454                 unsigned int  mirror = a->value;
1455
1456                 ovid = &vout->vid_info;
1457                 ovl = ovid->overlays[0];
1458
1459                 mutex_lock(&vout->lock);
1460                 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
1461                         mutex_unlock(&vout->lock);
1462                         ret = -ERANGE;
1463                         break;
1464                 }
1465
1466                 if (mirror  && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1467                         mutex_unlock(&vout->lock);
1468                         ret = -EINVAL;
1469                         break;
1470                 }
1471                 vout->mirror = mirror;
1472                 vout->control[2].value = mirror;
1473                 mutex_unlock(&vout->lock);
1474                 break;
1475         }
1476         default:
1477                 ret = -EINVAL;
1478         }
1479         return ret;
1480 }
1481
1482 static int vidioc_reqbufs(struct file *file, void *fh,
1483                         struct v4l2_requestbuffers *req)
1484 {
1485         int ret = 0;
1486         unsigned int i, num_buffers = 0;
1487         struct omap_vout_device *vout = fh;
1488         struct videobuf_queue *q = &vout->vbq;
1489
1490         if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0))
1491                 return -EINVAL;
1492         /* if memory is not mmp or userptr
1493            return error */
1494         if ((V4L2_MEMORY_MMAP != req->memory) &&
1495                         (V4L2_MEMORY_USERPTR != req->memory))
1496                 return -EINVAL;
1497
1498         mutex_lock(&vout->lock);
1499         /* Cannot be requested when streaming is on */
1500         if (vout->streaming) {
1501                 ret = -EBUSY;
1502                 goto reqbuf_err;
1503         }
1504
1505         /* If buffers are already allocated free them */
1506         if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
1507                 if (vout->mmap_count) {
1508                         ret = -EBUSY;
1509                         goto reqbuf_err;
1510                 }
1511                 num_buffers = (vout->vid == OMAP_VIDEO1) ?
1512                         video1_numbuffers : video2_numbuffers;
1513                 for (i = num_buffers; i < vout->buffer_allocated; i++) {
1514                         omap_vout_free_buffer(vout->buf_virt_addr[i],
1515                                         vout->buffer_size);
1516                         vout->buf_virt_addr[i] = 0;
1517                         vout->buf_phy_addr[i] = 0;
1518                 }
1519                 vout->buffer_allocated = num_buffers;
1520                 videobuf_mmap_free(q);
1521         } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
1522                 if (vout->buffer_allocated) {
1523                         videobuf_mmap_free(q);
1524                         for (i = 0; i < vout->buffer_allocated; i++) {
1525                                 kfree(q->bufs[i]);
1526                                 q->bufs[i] = NULL;
1527                         }
1528                         vout->buffer_allocated = 0;
1529                 }
1530         }
1531
1532         /*store the memory type in data structure */
1533         vout->memory = req->memory;
1534
1535         INIT_LIST_HEAD(&vout->dma_queue);
1536
1537         /* call videobuf_reqbufs api */
1538         ret = videobuf_reqbufs(q, req);
1539         if (ret < 0)
1540                 goto reqbuf_err;
1541
1542         vout->buffer_allocated = req->count;
1543
1544 reqbuf_err:
1545         mutex_unlock(&vout->lock);
1546         return ret;
1547 }
1548
1549 static int vidioc_querybuf(struct file *file, void *fh,
1550                         struct v4l2_buffer *b)
1551 {
1552         struct omap_vout_device *vout = fh;
1553
1554         return videobuf_querybuf(&vout->vbq, b);
1555 }
1556
1557 static int vidioc_qbuf(struct file *file, void *fh,
1558                         struct v4l2_buffer *buffer)
1559 {
1560         struct omap_vout_device *vout = fh;
1561         struct videobuf_queue *q = &vout->vbq;
1562
1563         if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
1564                         (buffer->index >= vout->buffer_allocated) ||
1565                         (q->bufs[buffer->index]->memory != buffer->memory)) {
1566                 return -EINVAL;
1567         }
1568         if (V4L2_MEMORY_USERPTR == buffer->memory) {
1569                 if ((buffer->length < vout->pix.sizeimage) ||
1570                                 (0 == buffer->m.userptr)) {
1571                         return -EINVAL;
1572                 }
1573         }
1574
1575         if ((is_rotation_enabled(vout)) &&
1576                         vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
1577                 v4l2_warn(&vout->vid_dev->v4l2_dev,
1578                                 "DMA Channel not allocated for Rotation\n");
1579                 return -EINVAL;
1580         }
1581
1582         return videobuf_qbuf(q, buffer);
1583 }
1584
1585 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1586 {
1587         struct omap_vout_device *vout = fh;
1588         struct videobuf_queue *q = &vout->vbq;
1589
1590         int ret;
1591         u32 addr;
1592         unsigned long size;
1593         struct videobuf_buffer *vb;
1594
1595         vb = q->bufs[b->index];
1596
1597         if (!vout->streaming)
1598                 return -EINVAL;
1599
1600         if (file->f_flags & O_NONBLOCK)
1601                 /* Call videobuf_dqbuf for non blocking mode */
1602                 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
1603         else
1604                 /* Call videobuf_dqbuf for  blocking mode */
1605                 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
1606
1607         addr = (unsigned long) vout->buf_phy_addr[vb->i];
1608         size = (unsigned long) vb->size;
1609         dma_unmap_single(vout->vid_dev->v4l2_dev.dev,  addr,
1610                                 size, DMA_TO_DEVICE);
1611         return ret;
1612 }
1613
1614 static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1615 {
1616         int ret = 0, j;
1617         u32 addr = 0, mask = 0;
1618         struct omap_vout_device *vout = fh;
1619         struct videobuf_queue *q = &vout->vbq;
1620         struct omapvideo_info *ovid = &vout->vid_info;
1621
1622         mutex_lock(&vout->lock);
1623
1624         if (vout->streaming) {
1625                 ret = -EBUSY;
1626                 goto streamon_err;
1627         }
1628
1629         ret = videobuf_streamon(q);
1630         if (ret)
1631                 goto streamon_err;
1632
1633         if (list_empty(&vout->dma_queue)) {
1634                 ret = -EIO;
1635                 goto streamon_err1;
1636         }
1637
1638         /* Get the next frame from the buffer queue */
1639         vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1640                         struct videobuf_buffer, queue);
1641         /* Remove buffer from the buffer queue */
1642         list_del(&vout->cur_frm->queue);
1643         /* Mark state of the current frame to active */
1644         vout->cur_frm->state = VIDEOBUF_ACTIVE;
1645         /* Initialize field_id and started member */
1646         vout->field_id = 0;
1647
1648         /* set flag here. Next QBUF will start DMA */
1649         vout->streaming = 1;
1650
1651         vout->first_int = 1;
1652
1653         if (omap_vout_calculate_offset(vout)) {
1654                 ret = -EINVAL;
1655                 goto streamon_err1;
1656         }
1657         addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i]
1658                 + vout->cropped_offset;
1659
1660         mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1661                 | DISPC_IRQ_VSYNC2;
1662
1663         omap_dispc_register_isr(omap_vout_isr, vout, mask);
1664
1665         for (j = 0; j < ovid->num_overlays; j++) {
1666                 struct omap_overlay *ovl = ovid->overlays[j];
1667
1668                 if (ovl->manager && ovl->manager->device) {
1669                         struct omap_overlay_info info;
1670                         ovl->get_overlay_info(ovl, &info);
1671                         info.enabled = 1;
1672                         info.paddr = addr;
1673                         if (ovl->set_overlay_info(ovl, &info)) {
1674                                 ret = -EINVAL;
1675                                 goto streamon_err1;
1676                         }
1677                 }
1678         }
1679
1680         /* First save the configuration in ovelray structure */
1681         ret = omapvid_init(vout, addr);
1682         if (ret)
1683                 v4l2_err(&vout->vid_dev->v4l2_dev,
1684                                 "failed to set overlay info\n");
1685         /* Enable the pipeline and set the Go bit */
1686         ret = omapvid_apply_changes(vout);
1687         if (ret)
1688                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1689
1690         ret = 0;
1691
1692 streamon_err1:
1693         if (ret)
1694                 ret = videobuf_streamoff(q);
1695 streamon_err:
1696         mutex_unlock(&vout->lock);
1697         return ret;
1698 }
1699
1700 static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1701 {
1702         u32 mask = 0;
1703         int ret = 0, j;
1704         struct omap_vout_device *vout = fh;
1705         struct omapvideo_info *ovid = &vout->vid_info;
1706
1707         if (!vout->streaming)
1708                 return -EINVAL;
1709
1710         vout->streaming = 0;
1711         mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1712                 | DISPC_IRQ_VSYNC2;
1713
1714         omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1715
1716         for (j = 0; j < ovid->num_overlays; j++) {
1717                 struct omap_overlay *ovl = ovid->overlays[j];
1718
1719                 if (ovl->manager && ovl->manager->device) {
1720                         struct omap_overlay_info info;
1721
1722                         ovl->get_overlay_info(ovl, &info);
1723                         info.enabled = 0;
1724                         ret = ovl->set_overlay_info(ovl, &info);
1725                         if (ret)
1726                                 v4l2_err(&vout->vid_dev->v4l2_dev,
1727                                 "failed to update overlay info in streamoff\n");
1728                 }
1729         }
1730
1731         /* Turn of the pipeline */
1732         ret = omapvid_apply_changes(vout);
1733         if (ret)
1734                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in"
1735                                 " streamoff\n");
1736
1737         INIT_LIST_HEAD(&vout->dma_queue);
1738         ret = videobuf_streamoff(&vout->vbq);
1739
1740         return ret;
1741 }
1742
1743 static int vidioc_s_fbuf(struct file *file, void *fh,
1744                                 struct v4l2_framebuffer *a)
1745 {
1746         int enable = 0;
1747         struct omap_overlay *ovl;
1748         struct omapvideo_info *ovid;
1749         struct omap_vout_device *vout = fh;
1750         struct omap_overlay_manager_info info;
1751         enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1752
1753         ovid = &vout->vid_info;
1754         ovl = ovid->overlays[0];
1755
1756         /* OMAP DSS doesn't support Source and Destination color
1757            key together */
1758         if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
1759                         (a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
1760                 return -EINVAL;
1761         /* OMAP DSS Doesn't support the Destination color key
1762            and alpha blending together */
1763         if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
1764                         (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA))
1765                 return -EINVAL;
1766
1767         if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) {
1768                 vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1769                 key_type =  OMAP_DSS_COLOR_KEY_VID_SRC;
1770         } else
1771                 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1772
1773         if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) {
1774                 vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1775                 key_type =  OMAP_DSS_COLOR_KEY_GFX_DST;
1776         } else
1777                 vout->fbuf.flags &=  ~V4L2_FBUF_FLAG_CHROMAKEY;
1778
1779         if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
1780                                 V4L2_FBUF_FLAG_SRC_CHROMAKEY))
1781                 enable = 1;
1782         else
1783                 enable = 0;
1784         if (ovl->manager && ovl->manager->get_manager_info &&
1785                         ovl->manager->set_manager_info) {
1786
1787                 ovl->manager->get_manager_info(ovl->manager, &info);
1788                 info.trans_enabled = enable;
1789                 info.trans_key_type = key_type;
1790                 info.trans_key = vout->win.chromakey;
1791
1792                 if (ovl->manager->set_manager_info(ovl->manager, &info))
1793                         return -EINVAL;
1794         }
1795         if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
1796                 vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1797                 enable = 1;
1798         } else {
1799                 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
1800                 enable = 0;
1801         }
1802         if (ovl->manager && ovl->manager->get_manager_info &&
1803                         ovl->manager->set_manager_info) {
1804                 ovl->manager->get_manager_info(ovl->manager, &info);
1805                 /* enable this only if there is no zorder cap */
1806                 if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
1807                         info.partial_alpha_enabled = enable;
1808                 if (ovl->manager->set_manager_info(ovl->manager, &info))
1809                         return -EINVAL;
1810         }
1811
1812         return 0;
1813 }
1814
1815 static int vidioc_g_fbuf(struct file *file, void *fh,
1816                 struct v4l2_framebuffer *a)
1817 {
1818         struct omap_overlay *ovl;
1819         struct omapvideo_info *ovid;
1820         struct omap_vout_device *vout = fh;
1821         struct omap_overlay_manager_info info;
1822
1823         ovid = &vout->vid_info;
1824         ovl = ovid->overlays[0];
1825
1826         a->flags = 0x0;
1827         a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY
1828                 | V4L2_FBUF_CAP_SRC_CHROMAKEY;
1829
1830         if (ovl->manager && ovl->manager->get_manager_info) {
1831                 ovl->manager->get_manager_info(ovl->manager, &info);
1832                 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
1833                         a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1834                 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
1835                         a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1836         }
1837         if (ovl->manager && ovl->manager->get_manager_info) {
1838                 ovl->manager->get_manager_info(ovl->manager, &info);
1839                 if (info.partial_alpha_enabled)
1840                         a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1841         }
1842
1843         return 0;
1844 }
1845
1846 static const struct v4l2_ioctl_ops vout_ioctl_ops = {
1847         .vidioc_querycap                        = vidioc_querycap,
1848         .vidioc_enum_fmt_vid_out                = vidioc_enum_fmt_vid_out,
1849         .vidioc_g_fmt_vid_out                   = vidioc_g_fmt_vid_out,
1850         .vidioc_try_fmt_vid_out                 = vidioc_try_fmt_vid_out,
1851         .vidioc_s_fmt_vid_out                   = vidioc_s_fmt_vid_out,
1852         .vidioc_queryctrl                       = vidioc_queryctrl,
1853         .vidioc_g_ctrl                          = vidioc_g_ctrl,
1854         .vidioc_s_fbuf                          = vidioc_s_fbuf,
1855         .vidioc_g_fbuf                          = vidioc_g_fbuf,
1856         .vidioc_s_ctrl                          = vidioc_s_ctrl,
1857         .vidioc_try_fmt_vid_overlay             = vidioc_try_fmt_vid_overlay,
1858         .vidioc_s_fmt_vid_overlay               = vidioc_s_fmt_vid_overlay,
1859         .vidioc_enum_fmt_vid_overlay            = vidioc_enum_fmt_vid_overlay,
1860         .vidioc_g_fmt_vid_overlay               = vidioc_g_fmt_vid_overlay,
1861         .vidioc_cropcap                         = vidioc_cropcap,
1862         .vidioc_g_crop                          = vidioc_g_crop,
1863         .vidioc_s_crop                          = vidioc_s_crop,
1864         .vidioc_reqbufs                         = vidioc_reqbufs,
1865         .vidioc_querybuf                        = vidioc_querybuf,
1866         .vidioc_qbuf                            = vidioc_qbuf,
1867         .vidioc_dqbuf                           = vidioc_dqbuf,
1868         .vidioc_streamon                        = vidioc_streamon,
1869         .vidioc_streamoff                       = vidioc_streamoff,
1870 };
1871
1872 static const struct v4l2_file_operations omap_vout_fops = {
1873         .owner          = THIS_MODULE,
1874         .poll           = omap_vout_poll,
1875         .unlocked_ioctl = video_ioctl2,
1876         .mmap           = omap_vout_mmap,
1877         .open           = omap_vout_open,
1878         .release        = omap_vout_release,
1879 };
1880
1881 /* Init functions used during driver initialization */
1882 /* Initial setup of video_data */
1883 static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
1884 {
1885         struct video_device *vfd;
1886         struct v4l2_pix_format *pix;
1887         struct v4l2_control *control;
1888         struct omap_dss_device *display =
1889                 vout->vid_info.overlays[0]->manager->device;
1890
1891         /* set the default pix */
1892         pix = &vout->pix;
1893
1894         /* Set the default picture of QVGA  */
1895         pix->width = QQVGA_WIDTH;
1896         pix->height = QQVGA_HEIGHT;
1897
1898         /* Default pixel format is RGB 5-6-5 */
1899         pix->pixelformat = V4L2_PIX_FMT_RGB565;
1900         pix->field = V4L2_FIELD_ANY;
1901         pix->bytesperline = pix->width * 2;
1902         pix->sizeimage = pix->bytesperline * pix->height;
1903         pix->priv = 0;
1904         pix->colorspace = V4L2_COLORSPACE_JPEG;
1905
1906         vout->bpp = RGB565_BPP;
1907         vout->fbuf.fmt.width  =  display->panel.timings.x_res;
1908         vout->fbuf.fmt.height =  display->panel.timings.y_res;
1909
1910         /* Set the data structures for the overlay parameters*/
1911         vout->win.global_alpha = 255;
1912         vout->fbuf.flags = 0;
1913         vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
1914                 V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY;
1915         vout->win.chromakey = 0;
1916
1917         omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
1918
1919         /*Initialize the control variables for
1920           rotation, flipping and background color. */
1921         control = vout->control;
1922         control[0].id = V4L2_CID_ROTATE;
1923         control[0].value = 0;
1924         vout->rotation = 0;
1925         vout->mirror = 0;
1926         vout->control[2].id = V4L2_CID_HFLIP;
1927         vout->control[2].value = 0;
1928         if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
1929                 vout->vrfb_bpp = 2;
1930
1931         control[1].id = V4L2_CID_BG_COLOR;
1932         control[1].value = 0;
1933
1934         /* initialize the video_device struct */
1935         vfd = vout->vfd = video_device_alloc();
1936
1937         if (!vfd) {
1938                 printk(KERN_ERR VOUT_NAME ": could not allocate"
1939                                 " video device struct\n");
1940                 return -ENOMEM;
1941         }
1942         vfd->release = video_device_release;
1943         vfd->ioctl_ops = &vout_ioctl_ops;
1944
1945         strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
1946
1947         vfd->fops = &omap_vout_fops;
1948         vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
1949         mutex_init(&vout->lock);
1950
1951         vfd->minor = -1;
1952         return 0;
1953
1954 }
1955
1956 /* Setup video buffers */
1957 static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
1958                 int vid_num)
1959 {
1960         u32 numbuffers;
1961         int ret = 0, i;
1962         struct omapvideo_info *ovid;
1963         struct omap_vout_device *vout;
1964         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1965         struct omap2video_device *vid_dev =
1966                 container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
1967
1968         vout = vid_dev->vouts[vid_num];
1969         ovid = &vout->vid_info;
1970
1971         numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers;
1972         vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize;
1973         dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size);
1974
1975         for (i = 0; i < numbuffers; i++) {
1976                 vout->buf_virt_addr[i] =
1977                         omap_vout_alloc_buffer(vout->buffer_size,
1978                                         (u32 *) &vout->buf_phy_addr[i]);
1979                 if (!vout->buf_virt_addr[i]) {
1980                         numbuffers = i;
1981                         ret = -ENOMEM;
1982                         goto free_buffers;
1983                 }
1984         }
1985
1986         vout->cropped_offset = 0;
1987
1988         if (ovid->rotation_type == VOUT_ROT_VRFB) {
1989                 int static_vrfb_allocation = (vid_num == 0) ?
1990                         vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
1991                 ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
1992                                 static_vrfb_allocation);
1993         }
1994
1995         return ret;
1996
1997 free_buffers:
1998         for (i = 0; i < numbuffers; i++) {
1999                 omap_vout_free_buffer(vout->buf_virt_addr[i],
2000                                                 vout->buffer_size);
2001                 vout->buf_virt_addr[i] = 0;
2002                 vout->buf_phy_addr[i] = 0;
2003         }
2004         return ret;
2005
2006 }
2007
2008 /* Create video out devices */
2009 static int __init omap_vout_create_video_devices(struct platform_device *pdev)
2010 {
2011         int ret = 0, k;
2012         struct omap_vout_device *vout;
2013         struct video_device *vfd = NULL;
2014         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2015         struct omap2video_device *vid_dev = container_of(v4l2_dev,
2016                         struct omap2video_device, v4l2_dev);
2017
2018         for (k = 0; k < pdev->num_resources; k++) {
2019
2020                 vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
2021                 if (!vout) {
2022                         dev_err(&pdev->dev, ": could not allocate memory\n");
2023                         return -ENOMEM;
2024                 }
2025
2026                 vout->vid = k;
2027                 vid_dev->vouts[k] = vout;
2028                 vout->vid_dev = vid_dev;
2029                 /* Select video2 if only 1 overlay is controlled by V4L2 */
2030                 if (pdev->num_resources == 1)
2031                         vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
2032                 else
2033                         /* Else select video1 and video2 one by one. */
2034                         vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
2035                 vout->vid_info.num_overlays = 1;
2036                 vout->vid_info.id = k + 1;
2037
2038                 /* Set VRFB as rotation_type for omap2 and omap3 */
2039                 if (cpu_is_omap24xx() || cpu_is_omap34xx())
2040                         vout->vid_info.rotation_type = VOUT_ROT_VRFB;
2041
2042                 /* Setup the default configuration for the video devices
2043                  */
2044                 if (omap_vout_setup_video_data(vout) != 0) {
2045                         ret = -ENOMEM;
2046                         goto error;
2047                 }
2048
2049                 /* Allocate default number of buffers for the video streaming
2050                  * and reserve the VRFB space for rotation
2051                  */
2052                 if (omap_vout_setup_video_bufs(pdev, k) != 0) {
2053                         ret = -ENOMEM;
2054                         goto error1;
2055                 }
2056
2057                 /* Register the Video device with V4L2
2058                  */
2059                 vfd = vout->vfd;
2060                 if (video_register_device(vfd, VFL_TYPE_GRABBER, -1) < 0) {
2061                         dev_err(&pdev->dev, ": Could not register "
2062                                         "Video for Linux device\n");
2063                         vfd->minor = -1;
2064                         ret = -ENODEV;
2065                         goto error2;
2066                 }
2067                 video_set_drvdata(vfd, vout);
2068
2069                 /* Configure the overlay structure */
2070                 ret = omapvid_init(vid_dev->vouts[k], 0);
2071                 if (!ret)
2072                         goto success;
2073
2074 error2:
2075                 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
2076                         omap_vout_release_vrfb(vout);
2077                 omap_vout_free_buffers(vout);
2078 error1:
2079                 video_device_release(vfd);
2080 error:
2081                 kfree(vout);
2082                 return ret;
2083
2084 success:
2085                 dev_info(&pdev->dev, ": registered and initialized"
2086                                 " video device %d\n", vfd->minor);
2087                 if (k == (pdev->num_resources - 1))
2088                         return 0;
2089         }
2090
2091         return -ENODEV;
2092 }
2093 /* Driver functions */
2094 static void omap_vout_cleanup_device(struct omap_vout_device *vout)
2095 {
2096         struct video_device *vfd;
2097         struct omapvideo_info *ovid;
2098
2099         if (!vout)
2100                 return;
2101
2102         vfd = vout->vfd;
2103         ovid = &vout->vid_info;
2104         if (vfd) {
2105                 if (!video_is_registered(vfd)) {
2106                         /*
2107                          * The device was never registered, so release the
2108                          * video_device struct directly.
2109                          */
2110                         video_device_release(vfd);
2111                 } else {
2112                         /*
2113                          * The unregister function will release the video_device
2114                          * struct as well as unregistering it.
2115                          */
2116                         video_unregister_device(vfd);
2117                 }
2118         }
2119         if (ovid->rotation_type == VOUT_ROT_VRFB) {
2120                 omap_vout_release_vrfb(vout);
2121                 /* Free the VRFB buffer if allocated
2122                  * init time
2123                  */
2124                 if (vout->vrfb_static_allocation)
2125                         omap_vout_free_vrfb_buffers(vout);
2126         }
2127         omap_vout_free_buffers(vout);
2128
2129         kfree(vout);
2130 }
2131
2132 static int omap_vout_remove(struct platform_device *pdev)
2133 {
2134         int k;
2135         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2136         struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
2137                         omap2video_device, v4l2_dev);
2138
2139         v4l2_device_unregister(v4l2_dev);
2140         for (k = 0; k < pdev->num_resources; k++)
2141                 omap_vout_cleanup_device(vid_dev->vouts[k]);
2142
2143         for (k = 0; k < vid_dev->num_displays; k++) {
2144                 if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
2145                         vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
2146
2147                 omap_dss_put_device(vid_dev->displays[k]);
2148         }
2149         kfree(vid_dev);
2150         return 0;
2151 }
2152
2153 static int __init omap_vout_probe(struct platform_device *pdev)
2154 {
2155         int ret = 0, i;
2156         struct omap_overlay *ovl;
2157         struct omap_dss_device *dssdev = NULL;
2158         struct omap_dss_device *def_display;
2159         struct omap2video_device *vid_dev = NULL;
2160
2161         if (pdev->num_resources == 0) {
2162                 dev_err(&pdev->dev, "probed for an unknown device\n");
2163                 return -ENODEV;
2164         }
2165
2166         vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
2167         if (vid_dev == NULL)
2168                 return -ENOMEM;
2169
2170         vid_dev->num_displays = 0;
2171         for_each_dss_dev(dssdev) {
2172                 omap_dss_get_device(dssdev);
2173
2174                 if (!dssdev->driver) {
2175                         dev_warn(&pdev->dev, "no driver for display: %s\n",
2176                                         dssdev->name);
2177                         omap_dss_put_device(dssdev);
2178                         continue;
2179                 }
2180
2181                 vid_dev->displays[vid_dev->num_displays++] = dssdev;
2182         }
2183
2184         if (vid_dev->num_displays == 0) {
2185                 dev_err(&pdev->dev, "no displays\n");
2186                 ret = -EINVAL;
2187                 goto probe_err0;
2188         }
2189
2190         vid_dev->num_overlays = omap_dss_get_num_overlays();
2191         for (i = 0; i < vid_dev->num_overlays; i++)
2192                 vid_dev->overlays[i] = omap_dss_get_overlay(i);
2193
2194         vid_dev->num_managers = omap_dss_get_num_overlay_managers();
2195         for (i = 0; i < vid_dev->num_managers; i++)
2196                 vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
2197
2198         /* Get the Video1 overlay and video2 overlay.
2199          * Setup the Display attached to that overlays
2200          */
2201         for (i = 1; i < vid_dev->num_overlays; i++) {
2202                 ovl = omap_dss_get_overlay(i);
2203                 if (ovl->manager && ovl->manager->device) {
2204                         def_display = ovl->manager->device;
2205                 } else {
2206                         dev_warn(&pdev->dev, "cannot find display\n");
2207                         def_display = NULL;
2208                 }
2209                 if (def_display) {
2210                         struct omap_dss_driver *dssdrv = def_display->driver;
2211
2212                         ret = dssdrv->enable(def_display);
2213                         if (ret) {
2214                                 /* Here we are not considering a error
2215                                  *  as display may be enabled by frame
2216                                  *  buffer driver
2217                                  */
2218                                 dev_warn(&pdev->dev,
2219                                         "'%s' Display already enabled\n",
2220                                         def_display->name);
2221                         }
2222                 }
2223         }
2224
2225         if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
2226                 dev_err(&pdev->dev, "v4l2_device_register failed\n");
2227                 ret = -ENODEV;
2228                 goto probe_err1;
2229         }
2230
2231         ret = omap_vout_create_video_devices(pdev);
2232         if (ret)
2233                 goto probe_err2;
2234
2235         for (i = 0; i < vid_dev->num_displays; i++) {
2236                 struct omap_dss_device *display = vid_dev->displays[i];
2237
2238                 if (display->driver->update)
2239                         display->driver->update(display, 0, 0,
2240                                         display->panel.timings.x_res,
2241                                         display->panel.timings.y_res);
2242         }
2243         return 0;
2244
2245 probe_err2:
2246         v4l2_device_unregister(&vid_dev->v4l2_dev);
2247 probe_err1:
2248         for (i = 1; i < vid_dev->num_overlays; i++) {
2249                 def_display = NULL;
2250                 ovl = omap_dss_get_overlay(i);
2251                 if (ovl->manager && ovl->manager->device)
2252                         def_display = ovl->manager->device;
2253
2254                 if (def_display && def_display->driver)
2255                         def_display->driver->disable(def_display);
2256         }
2257 probe_err0:
2258         kfree(vid_dev);
2259         return ret;
2260 }
2261
2262 static struct platform_driver omap_vout_driver = {
2263         .driver = {
2264                 .name = VOUT_NAME,
2265         },
2266         .probe = omap_vout_probe,
2267         .remove = omap_vout_remove,
2268 };
2269
2270 static int __init omap_vout_init(void)
2271 {
2272         if (platform_driver_register(&omap_vout_driver) != 0) {
2273                 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
2274                 return -EINVAL;
2275         }
2276         return 0;
2277 }
2278
2279 static void omap_vout_cleanup(void)
2280 {
2281         platform_driver_unregister(&omap_vout_driver);
2282 }
2283
2284 late_initcall(omap_vout_init);
2285 module_exit(omap_vout_cleanup);