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
  42 #include <media/videobuf-dma-contig.h>
  43 #include <media/v4l2-device.h>
  44 #include <media/v4l2-ioctl.h>
  45
  46 #include <plat/dma.h>
  47 #include <plat/vrfb.h>
  48 #include <video/omapdss.h>
  49
  50 #include "omap_voutlib.h"
  51 #include "omap_voutdef.h"
  52 #include "omap_vout_vrfb.h"
  53
  54 MODULE_AUTHOR("Texas Instruments");
  55 MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
  56 MODULE_LICENSE("GPL");
  57
  58 /* Driver Configuration macros */
  59 #define VOUT_NAME               "omap_vout"
  60
  61 enum omap_vout_channels {
  62         OMAP_VIDEO1,
  63         OMAP_VIDEO2,
  64 };
  65
  66 static struct videobuf_queue_ops video_vbq_ops;
  67 /* Variables configurable through module params*/
  68 static u32 video1_numbuffers = 3;
  69 static u32 video2_numbuffers = 3;
  70 static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
  71 static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
  72 static u32 vid1_static_vrfb_alloc;
  73 static u32 vid2_static_vrfb_alloc;
  74 static int debug;
  75
  76 /* Module parameters */
  77 module_param(video1_numbuffers, uint, S_IRUGO);
  78 MODULE_PARM_DESC(video1_numbuffers,
  79         "Number of buffers to be allocated at init time for Video1 device.");
  80
  81 module_param(video2_numbuffers, uint, S_IRUGO);
  82 MODULE_PARM_DESC(video2_numbuffers,
  83         "Number of buffers to be allocated at init time for Video2 device.");
  84
  85 module_param(video1_bufsize, uint, S_IRUGO);
  86 MODULE_PARM_DESC(video1_bufsize,
  87         "Size of the buffer to be allocated for video1 device");
  88
  89 module_param(video2_bufsize, uint, S_IRUGO);
  90 MODULE_PARM_DESC(video2_bufsize,
  91         "Size of the buffer to be allocated for video2 device");
  92
  93 module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
  94 MODULE_PARM_DESC(vid1_static_vrfb_alloc,
  95         "Static allocation of the VRFB buffer for video1 device");
  96
  97 module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
  98 MODULE_PARM_DESC(vid2_static_vrfb_alloc,
  99         "Static allocation of the VRFB buffer for video2 device");
 100
 101 module_param(debug, bool, S_IRUGO);
 102 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 103
 104 /* list of image formats supported by OMAP2 video pipelines */
 105 static const struct v4l2_fmtdesc omap_formats[] = {
 106         {
 107                 /* Note:  V4L2 defines RGB565 as:
 108                  *
 109                  *      Byte 0                    Byte 1
 110                  *      g2 g1 g0 r4 r3 r2 r1 r0   b4 b3 b2 b1 b0 g5 g4 g3
 111                  *
 112                  * We interpret RGB565 as:
 113                  *
 114                  *      Byte 0                    Byte 1
 115                  *      g2 g1 g0 b4 b3 b2 b1 b0   r4 r3 r2 r1 r0 g5 g4 g3
 116                  */
 117                 .description = "RGB565, le",
 118                 .pixelformat = V4L2_PIX_FMT_RGB565,
 119         },
 120         {
 121                 /* Note:  V4L2 defines RGB32 as: RGB-8-8-8-8  we use
 122                  *  this for RGB24 unpack mode, the last 8 bits are ignored
 123                  * */
 124                 .description = "RGB32, le",
 125                 .pixelformat = V4L2_PIX_FMT_RGB32,
 126         },
 127         {
 128                 /* Note:  V4L2 defines RGB24 as: RGB-8-8-8  we use
 129                  *        this for RGB24 packed mode
 130                  *
 131                  */
 132                 .description = "RGB24, le",
 133                 .pixelformat = V4L2_PIX_FMT_RGB24,
 134         },
 135         {
 136                 .description = "YUYV (YUV 4:2:2), packed",
 137                 .pixelformat = V4L2_PIX_FMT_YUYV,
 138         },
 139         {
 140                 .description = "UYVY, packed",
 141                 .pixelformat = V4L2_PIX_FMT_UYVY,
 142         },
 143 };
 144
 145 #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
 146
 147 /*
 148  * Try format
 149  */
 150 static int omap_vout_try_format(struct v4l2_pix_format *pix)
 151 {
 152         int ifmt, bpp = 0;
 153
 154         pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT,
 155                                                 (u32)VID_MAX_HEIGHT);
 156         pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH);
 157
 158         for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
 159                 if (pix->pixelformat == omap_formats[ifmt].pixelformat)
 160                         break;
 161         }
 162
 163         if (ifmt == NUM_OUTPUT_FORMATS)
 164                 ifmt = 0;
 165
 166         pix->pixelformat = omap_formats[ifmt].pixelformat;
 167         pix->field = V4L2_FIELD_ANY;
 168         pix->priv = 0;
 169
 170         switch (pix->pixelformat) {
 171         case V4L2_PIX_FMT_YUYV:
 172         case V4L2_PIX_FMT_UYVY:
 173         default:
 174                 pix->colorspace = V4L2_COLORSPACE_JPEG;
 175                 bpp = YUYV_BPP;
 176                 break;
 177         case V4L2_PIX_FMT_RGB565:
 178         case V4L2_PIX_FMT_RGB565X:
 179                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 180                 bpp = RGB565_BPP;
 181                 break;
 182         case V4L2_PIX_FMT_RGB24:
 183                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 184                 bpp = RGB24_BPP;
 185                 break;
 186         case V4L2_PIX_FMT_RGB32:
 187         case V4L2_PIX_FMT_BGR32:
 188                 pix->colorspace = V4L2_COLORSPACE_SRGB;
 189                 bpp = RGB32_BPP;
 190                 break;
 191         }
 192         pix->bytesperline = pix->width * bpp;
 193         pix->sizeimage = pix->bytesperline * pix->height;
 194
 195         return bpp;
 196 }
 197
 198 /*
 199  * omap_vout_uservirt_to_phys: This inline function is used to convert user
 200  * space virtual address to physical address.
 201  */
 202 static u32 omap_vout_uservirt_to_phys(u32 virtp)
 203 {
 204         unsigned long physp = 0;
 205         struct vm_area_struct *vma;
 206         struct mm_struct *mm = current->mm;
 207
 208         vma = find_vma(mm, virtp);
 209         /* For kernel direct-mapped memory, take the easy way */
 210         if (virtp >= PAGE_OFFSET) {
 211                 physp = virt_to_phys((void *) virtp);
 212         } else if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) {
 213                 /* this will catch, kernel-allocated, mmaped-to-usermode
 214                    addresses */
 215                 physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start);
 216         } else {
 217                 /* otherwise, use get_user_pages() for general userland pages */
 218                 int res, nr_pages = 1;
 219                 struct page *pages;
 220                 down_read(&current->mm->mmap_sem);
 221
 222                 res = get_user_pages(current, current->mm, virtp, nr_pages, 1,
 223                                 0, &pages, NULL);
 224                 up_read(&current->mm->mmap_sem);
 225
 226                 if (res == nr_pages) {
 227                         physp =  __pa(page_address(&pages[0]) +
 228                                         (virtp & ~PAGE_MASK));
 229                 } else {
 230                         printk(KERN_WARNING VOUT_NAME
 231                                         "get_user_pages failed\n");
 232                         return 0;
 233                 }
 234         }
 235
 236         return physp;
 237 }
 238
 239 /*
 240  * Free the V4L2 buffers
 241  */
 242 void omap_vout_free_buffers(struct omap_vout_device *vout)
 243 {
 244         int i, numbuffers;
 245
 246         /* Allocate memory for the buffers */
 247         numbuffers = (vout->vid) ?  video2_numbuffers : video1_numbuffers;
 248         vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize;
 249
 250         for (i = 0; i < numbuffers; i++) {
 251                 omap_vout_free_buffer(vout->buf_virt_addr[i],
 252                                 vout->buffer_size);
 253                 vout->buf_phy_addr[i] = 0;
 254                 vout->buf_virt_addr[i] = 0;
 255         }
 256 }
 257
 258 /*
 259  * Convert V4L2 rotation to DSS rotation
 260  *      V4L2 understand 0, 90, 180, 270.
 261  *      Convert to 0, 1, 2 and 3 respectively for DSS
 262  */
 263 static int v4l2_rot_to_dss_rot(int v4l2_rotation,
 264                         enum dss_rotation *rotation, bool mirror)
 265 {
 266         int ret = 0;
 267
 268         switch (v4l2_rotation) {
 269         case 90:
 270                 *rotation = dss_rotation_90_degree;
 271                 break;
 272         case 180:
 273                 *rotation = dss_rotation_180_degree;
 274                 break;
 275         case 270:
 276                 *rotation = dss_rotation_270_degree;
 277                 break;
 278         case 0:
 279                 *rotation = dss_rotation_0_degree;
 280                 break;
 281         default:
 282                 ret = -EINVAL;
 283         }
 284         return ret;
 285 }
 286
 287 static int omap_vout_calculate_offset(struct omap_vout_device *vout)
 288 {
 289         struct omapvideo_info *ovid;
 290         struct v4l2_rect *crop = &vout->crop;
 291         struct v4l2_pix_format *pix = &vout->pix;
 292         int *cropped_offset = &vout->cropped_offset;
 293         int ps = 2, line_length = 0;
 294
 295         ovid = &vout->vid_info;
 296
 297         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 298                 omap_vout_calculate_vrfb_offset(vout);
 299         } else {
 300                 vout->line_length = line_length = pix->width;
 301
 302                 if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
 303                         V4L2_PIX_FMT_UYVY == pix->pixelformat)
 304                         ps = 2;
 305                 else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
 306                         ps = 4;
 307                 else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
 308                         ps = 3;
 309
 310                 vout->ps = ps;
 311
 312                 *cropped_offset = (line_length * ps) *
 313                         crop->top + crop->left * ps;
 314         }
 315
 316         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
 317                         __func__, vout->cropped_offset);
 318
 319         return 0;
 320 }
 321
 322 /*
 323  * Convert V4L2 pixel format to DSS pixel format
 324  */
 325 static int video_mode_to_dss_mode(struct omap_vout_device *vout)
 326 {
 327         struct omap_overlay *ovl;
 328         struct omapvideo_info *ovid;
 329         struct v4l2_pix_format *pix = &vout->pix;
 330         enum omap_color_mode mode;
 331
 332         ovid = &vout->vid_info;
 333         ovl = ovid->overlays[0];
 334
 335         switch (pix->pixelformat) {
 336         case 0:
 337                 break;
 338         case V4L2_PIX_FMT_YUYV:
 339                 mode = OMAP_DSS_COLOR_YUV2;
 340                 break;
 341         case V4L2_PIX_FMT_UYVY:
 342                 mode = OMAP_DSS_COLOR_UYVY;
 343                 break;
 344         case V4L2_PIX_FMT_RGB565:
 345                 mode = OMAP_DSS_COLOR_RGB16;
 346                 break;
 347         case V4L2_PIX_FMT_RGB24:
 348                 mode = OMAP_DSS_COLOR_RGB24P;
 349                 break;
 350         case V4L2_PIX_FMT_RGB32:
 351                 mode = (ovl->id == OMAP_DSS_VIDEO1) ?
 352                         OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
 353                 break;
 354         case V4L2_PIX_FMT_BGR32:
 355                 mode = OMAP_DSS_COLOR_RGBX32;
 356                 break;
 357         default:
 358                 mode = -EINVAL;
 359         }
 360         return mode;
 361 }
 362
 363 /*
 364  * Setup the overlay
 365  */
 366 static int omapvid_setup_overlay(struct omap_vout_device *vout,
 367                 struct omap_overlay *ovl, int posx, int posy, int outw,
 368                 int outh, u32 addr)
 369 {
 370         int ret = 0;
 371         struct omap_overlay_info info;
 372         int cropheight, cropwidth, pixheight, pixwidth;
 373
 374         if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
 375                         (outw != vout->pix.width || outh != vout->pix.height)) {
 376                 ret = -EINVAL;
 377                 goto setup_ovl_err;
 378         }
 379
 380         vout->dss_mode = video_mode_to_dss_mode(vout);
 381         if (vout->dss_mode == -EINVAL) {
 382                 ret = -EINVAL;
 383                 goto setup_ovl_err;
 384         }
 385
 386         /* Setup the input plane parameters according to
 387          * rotation value selected.
 388          */
 389         if (is_rotation_90_or_270(vout)) {
 390                 cropheight = vout->crop.width;
 391                 cropwidth = vout->crop.height;
 392                 pixheight = vout->pix.width;
 393                 pixwidth = vout->pix.height;
 394         } else {
 395                 cropheight = vout->crop.height;
 396                 cropwidth = vout->crop.width;
 397                 pixheight = vout->pix.height;
 398                 pixwidth = vout->pix.width;
 399         }
 400
 401         ovl->get_overlay_info(ovl, &info);
 402         info.paddr = addr;
 403         info.width = cropwidth;
 404         info.height = cropheight;
 405         info.color_mode = vout->dss_mode;
 406         info.mirror = vout->mirror;
 407         info.pos_x = posx;
 408         info.pos_y = posy;
 409         info.out_width = outw;
 410         info.out_height = outh;
 411         info.global_alpha = vout->win.global_alpha;
 412         if (!is_rotation_enabled(vout)) {
 413                 info.rotation = 0;
 414                 info.rotation_type = OMAP_DSS_ROT_DMA;
 415                 info.screen_width = pixwidth;
 416         } else {
 417                 info.rotation = vout->rotation;
 418                 info.rotation_type = OMAP_DSS_ROT_VRFB;
 419                 info.screen_width = 2048;
 420         }
 421
 422         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 423                 "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n"
 424                 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
 425                 "out_height=%d rotation_type=%d screen_width=%d\n",
 426                 __func__, info.enabled, info.paddr, info.width, info.height,
 427                 info.color_mode, info.rotation, info.mirror, info.pos_x,
 428                 info.pos_y, info.out_width, info.out_height, info.rotation_type,
 429                 info.screen_width);
 430
 431         ret = ovl->set_overlay_info(ovl, &info);
 432         if (ret)
 433                 goto setup_ovl_err;
 434
 435         return 0;
 436
 437 setup_ovl_err:
 438         v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
 439         return ret;
 440 }
 441
 442 /*
 443  * Initialize the overlay structure
 444  */
 445 static int omapvid_init(struct omap_vout_device *vout, u32 addr)
 446 {
 447         int ret = 0, i;
 448         struct v4l2_window *win;
 449         struct omap_overlay *ovl;
 450         int posx, posy, outw, outh, temp;
 451         struct omap_video_timings *timing;
 452         struct omapvideo_info *ovid = &vout->vid_info;
 453
 454         win = &vout->win;
 455         for (i = 0; i < ovid->num_overlays; i++) {
 456                 ovl = ovid->overlays[i];
 457                 if (!ovl->manager || !ovl->manager->device)
 458                         return -EINVAL;
 459
 460                 timing = &ovl->manager->device->panel.timings;
 461
 462                 outw = win->w.width;
 463                 outh = win->w.height;
 464                 switch (vout->rotation) {
 465                 case dss_rotation_90_degree:
 466                         /* Invert the height and width for 90
 467                          * and 270 degree rotation
 468                          */
 469                         temp = outw;
 470                         outw = outh;
 471                         outh = temp;
 472                         posy = (timing->y_res - win->w.width) - win->w.left;
 473                         posx = win->w.top;
 474                         break;
 475
 476                 case dss_rotation_180_degree:
 477                         posx = (timing->x_res - win->w.width) - win->w.left;
 478                         posy = (timing->y_res - win->w.height) - win->w.top;
 479                         break;
 480
 481                 case dss_rotation_270_degree:
 482                         temp = outw;
 483                         outw = outh;
 484                         outh = temp;
 485                         posy = win->w.left;
 486                         posx = (timing->x_res - win->w.height) - win->w.top;
 487                         break;
 488
 489                 default:
 490                         posx = win->w.left;
 491                         posy = win->w.top;
 492                         break;
 493                 }
 494
 495                 ret = omapvid_setup_overlay(vout, ovl, posx, posy,
 496                                 outw, outh, addr);
 497                 if (ret)
 498                         goto omapvid_init_err;
 499         }
 500         return 0;
 501
 502 omapvid_init_err:
 503         v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
 504         return ret;
 505 }
 506
 507 /*
 508  * Apply the changes set the go bit of DSS
 509  */
 510 static int omapvid_apply_changes(struct omap_vout_device *vout)
 511 {
 512         int i;
 513         struct omap_overlay *ovl;
 514         struct omapvideo_info *ovid = &vout->vid_info;
 515
 516         for (i = 0; i < ovid->num_overlays; i++) {
 517                 ovl = ovid->overlays[i];
 518                 if (!ovl->manager || !ovl->manager->device)
 519                         return -EINVAL;
 520                 ovl->manager->apply(ovl->manager);
 521         }
 522
 523         return 0;
 524 }
 525
 526 static void omap_vout_isr(void *arg, unsigned int irqstatus)
 527 {
 528         int ret;
 529         u32 addr, fid;
 530         struct omap_overlay *ovl;
 531         struct timeval timevalue;
 532         struct omapvideo_info *ovid;
 533         struct omap_dss_device *cur_display;
 534         struct omap_vout_device *vout = (struct omap_vout_device *)arg;
 535
 536         if (!vout->streaming)
 537                 return;
 538
 539         ovid = &vout->vid_info;
 540         ovl = ovid->overlays[0];
 541         /* get the display device attached to the overlay */
 542         if (!ovl->manager || !ovl->manager->device)
 543                 return;
 544
 545         cur_display = ovl->manager->device;
 546
 547         spin_lock(&vout->vbq_lock);
 548         do_gettimeofday(&timevalue);
 549
 550         if (cur_display->type != OMAP_DISPLAY_TYPE_VENC) {
 551                 switch (cur_display->type) {
 552                 case OMAP_DISPLAY_TYPE_DPI:
 553                         if (!(irqstatus & (DISPC_IRQ_VSYNC | DISPC_IRQ_VSYNC2)))
 554                                 goto vout_isr_err;
 555                         break;
 556                 case OMAP_DISPLAY_TYPE_HDMI:
 557                         if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
 558                                 goto vout_isr_err;
 559                         break;
 560                 default:
 561                         goto vout_isr_err;
 562                 }
 563                 if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
 564                         vout->cur_frm->ts = timevalue;
 565                         vout->cur_frm->state = VIDEOBUF_DONE;
 566                         wake_up_interruptible(&vout->cur_frm->done);
 567                         vout->cur_frm = vout->next_frm;
 568                 }
 569                 vout->first_int = 0;
 570                 if (list_empty(&vout->dma_queue))
 571                         goto vout_isr_err;
 572
 573                 vout->next_frm = list_entry(vout->dma_queue.next,
 574                                 struct videobuf_buffer, queue);
 575                 list_del(&vout->next_frm->queue);
 576
 577                 vout->next_frm->state = VIDEOBUF_ACTIVE;
 578
 579                 addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
 580                         + vout->cropped_offset;
 581
 582                 /* First save the configuration in ovelray structure */
 583                 ret = omapvid_init(vout, addr);
 584                 if (ret)
 585                         printk(KERN_ERR VOUT_NAME
 586                                 "failed to set overlay info\n");
 587                 /* Enable the pipeline and set the Go bit */
 588                 ret = omapvid_apply_changes(vout);
 589                 if (ret)
 590                         printk(KERN_ERR VOUT_NAME "failed to change mode\n");
 591         } else {
 592
 593                 if (vout->first_int) {
 594                         vout->first_int = 0;
 595                         goto vout_isr_err;
 596                 }
 597                 if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
 598                         fid = 1;
 599                 else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
 600                         fid = 0;
 601                 else
 602                         goto vout_isr_err;
 603
 604                 vout->field_id ^= 1;
 605                 if (fid != vout->field_id) {
 606                         if (0 == fid)
 607                                 vout->field_id = fid;
 608
 609                         goto vout_isr_err;
 610                 }
 611                 if (0 == fid) {
 612                         if (vout->cur_frm == vout->next_frm)
 613                                 goto vout_isr_err;
 614
 615                         vout->cur_frm->ts = timevalue;
 616                         vout->cur_frm->state = VIDEOBUF_DONE;
 617                         wake_up_interruptible(&vout->cur_frm->done);
 618                         vout->cur_frm = vout->next_frm;
 619                 } else if (1 == fid) {
 620                         if (list_empty(&vout->dma_queue) ||
 621                                         (vout->cur_frm != vout->next_frm))
 622                                 goto vout_isr_err;
 623
 624                         vout->next_frm = list_entry(vout->dma_queue.next,
 625                                         struct videobuf_buffer, queue);
 626                         list_del(&vout->next_frm->queue);
 627
 628                         vout->next_frm->state = VIDEOBUF_ACTIVE;
 629                         addr = (unsigned long)
 630                                 vout->queued_buf_addr[vout->next_frm->i] +
 631                                 vout->cropped_offset;
 632                         /* First save the configuration in ovelray structure */
 633                         ret = omapvid_init(vout, addr);
 634                         if (ret)
 635                                 printk(KERN_ERR VOUT_NAME
 636                                                 "failed to set overlay info\n");
 637                         /* Enable the pipeline and set the Go bit */
 638                         ret = omapvid_apply_changes(vout);
 639                         if (ret)
 640                                 printk(KERN_ERR VOUT_NAME
 641                                                 "failed to change mode\n");
 642                 }
 643
 644         }
 645
 646 vout_isr_err:
 647         spin_unlock(&vout->vbq_lock);
 648 }
 649
 650
 651 /* Video buffer call backs */
 652
 653 /*
 654  * Buffer setup function is called by videobuf layer when REQBUF ioctl is
 655  * called. This is used to setup buffers and return size and count of
 656  * buffers allocated. After the call to this buffer, videobuf layer will
 657  * setup buffer queue depending on the size and count of buffers
 658  */
 659 static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
 660                           unsigned int *size)
 661 {
 662         int startindex = 0, i, j;
 663         u32 phy_addr = 0, virt_addr = 0;
 664         struct omap_vout_device *vout = q->priv_data;
 665         struct omapvideo_info *ovid = &vout->vid_info;
 666
 667         if (!vout)
 668                 return -EINVAL;
 669
 670         if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
 671                 return -EINVAL;
 672
 673         startindex = (vout->vid == OMAP_VIDEO1) ?
 674                 video1_numbuffers : video2_numbuffers;
 675         if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
 676                 *count = startindex;
 677
 678         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 679                 if (omap_vout_vrfb_buffer_setup(vout, count, startindex))
 680                         return -ENOMEM;
 681         }
 682
 683         if (V4L2_MEMORY_MMAP != vout->memory)
 684                 return 0;
 685
 686         /* Now allocated the V4L2 buffers */
 687         *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp);
 688         startindex = (vout->vid == OMAP_VIDEO1) ?
 689                 video1_numbuffers : video2_numbuffers;
 690
 691         /* Check the size of the buffer */
 692         if (*size > vout->buffer_size) {
 693                 v4l2_err(&vout->vid_dev->v4l2_dev,
 694                                 "buffer allocation mismatch [%u] [%u]\n",
 695                                 *size, vout->buffer_size);
 696                 return -ENOMEM;
 697         }
 698
 699         for (i = startindex; i < *count; i++) {
 700                 vout->buffer_size = *size;
 701
 702                 virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
 703                                 &phy_addr);
 704                 if (!virt_addr) {
 705                         if (ovid->rotation_type == VOUT_ROT_NONE) {
 706                                 break;
 707                         } else {
 708                                 if (!is_rotation_enabled(vout))
 709                                         break;
 710                         /* Free the VRFB buffers if no space for V4L2 buffers */
 711                         for (j = i; j < *count; j++) {
 712                                 omap_vout_free_buffer(
 713                                                 vout->smsshado_virt_addr[j],
 714                                                 vout->smsshado_size);
 715                                 vout->smsshado_virt_addr[j] = 0;
 716                                 vout->smsshado_phy_addr[j] = 0;
 717                                 }
 718                         }
 719                 }
 720                 vout->buf_virt_addr[i] = virt_addr;
 721                 vout->buf_phy_addr[i] = phy_addr;
 722         }
 723         *count = vout->buffer_allocated = i;
 724
 725         return 0;
 726 }
 727
 728 /*
 729  * Free the V4L2 buffers additionally allocated than default
 730  * number of buffers
 731  */
 732 static void omap_vout_free_extra_buffers(struct omap_vout_device *vout)
 733 {
 734         int num_buffers = 0, i;
 735
 736         num_buffers = (vout->vid == OMAP_VIDEO1) ?
 737                 video1_numbuffers : video2_numbuffers;
 738
 739         for (i = num_buffers; i < vout->buffer_allocated; i++) {
 740                 if (vout->buf_virt_addr[i])
 741                         omap_vout_free_buffer(vout->buf_virt_addr[i],
 742                                         vout->buffer_size);
 743
 744                 vout->buf_virt_addr[i] = 0;
 745                 vout->buf_phy_addr[i] = 0;
 746         }
 747         vout->buffer_allocated = num_buffers;
 748 }
 749
 750 /*
 751  * This function will be called when VIDIOC_QBUF ioctl is called.
 752  * It prepare buffers before give out for the display. This function
 753  * converts user space virtual address into physical address if userptr memory
 754  * exchange mechanism is used. If rotation is enabled, it copies entire
 755  * buffer into VRFB memory space before giving it to the DSS.
 756  */
 757 static int omap_vout_buffer_prepare(struct videobuf_queue *q,
 758                         struct videobuf_buffer *vb,
 759                         enum v4l2_field field)
 760 {
 761         struct omap_vout_device *vout = q->priv_data;
 762         struct omapvideo_info *ovid = &vout->vid_info;
 763
 764         if (VIDEOBUF_NEEDS_INIT == vb->state) {
 765                 vb->width = vout->pix.width;
 766                 vb->height = vout->pix.height;
 767                 vb->size = vb->width * vb->height * vout->bpp;
 768                 vb->field = field;
 769         }
 770         vb->state = VIDEOBUF_PREPARED;
 771         /* if user pointer memory mechanism is used, get the physical
 772          * address of the buffer
 773          */
 774         if (V4L2_MEMORY_USERPTR == vb->memory) {
 775                 if (0 == vb->baddr)
 776                         return -EINVAL;
 777                 /* Physical address */
 778                 vout->queued_buf_addr[vb->i] = (u8 *)
 779                         omap_vout_uservirt_to_phys(vb->baddr);
 780         } else {
 781                 u32 addr, dma_addr;
 782                 unsigned long size;
 783
 784                 addr = (unsigned long) vout->buf_virt_addr[vb->i];
 785                 size = (unsigned long) vb->size;
 786
 787                 dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr,
 788                                 size, DMA_TO_DEVICE);
 789                 if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr))
 790                         v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n");
 791
 792                 vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i];
 793         }
 794
 795         if (ovid->rotation_type == VOUT_ROT_VRFB)
 796                 return omap_vout_prepare_vrfb(vout, vb);
 797         else
 798                 return 0;
 799 }
 800
 801 /*
 802  * Buffer queue function will be called from the videobuf layer when _QBUF
 803  * ioctl is called. It is used to enqueue buffer, which is ready to be
 804  * displayed.
 805  */
 806 static void omap_vout_buffer_queue(struct videobuf_queue *q,
 807                           struct videobuf_buffer *vb)
 808 {
 809         struct omap_vout_device *vout = q->priv_data;
 810
 811         /* Driver is also maintainig a queue. So enqueue buffer in the driver
 812          * queue */
 813         list_add_tail(&vb->queue, &vout->dma_queue);
 814
 815         vb->state = VIDEOBUF_QUEUED;
 816 }
 817
 818 /*
 819  * Buffer release function is called from videobuf layer to release buffer
 820  * which are already allocated
 821  */
 822 static void omap_vout_buffer_release(struct videobuf_queue *q,
 823                             struct videobuf_buffer *vb)
 824 {
 825         struct omap_vout_device *vout = q->priv_data;
 826
 827         vb->state = VIDEOBUF_NEEDS_INIT;
 828
 829         if (V4L2_MEMORY_MMAP != vout->memory)
 830                 return;
 831 }
 832
 833 /*
 834  *  File operations
 835  */
 836 static unsigned int omap_vout_poll(struct file *file,
 837                                    struct poll_table_struct *wait)
 838 {
 839         struct omap_vout_device *vout = file->private_data;
 840         struct videobuf_queue *q = &vout->vbq;
 841
 842         return videobuf_poll_stream(file, q, wait);
 843 }
 844
 845 static void omap_vout_vm_open(struct vm_area_struct *vma)
 846 {
 847         struct omap_vout_device *vout = vma->vm_private_data;
 848
 849         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 850                 "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
 851         vout->mmap_count++;
 852 }
 853
 854 static void omap_vout_vm_close(struct vm_area_struct *vma)
 855 {
 856         struct omap_vout_device *vout = vma->vm_private_data;
 857
 858         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 859                 "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
 860         vout->mmap_count--;
 861 }
 862
 863 static struct vm_operations_struct omap_vout_vm_ops = {
 864         .open   = omap_vout_vm_open,
 865         .close  = omap_vout_vm_close,
 866 };
 867
 868 static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
 869 {
 870         int i;
 871         void *pos;
 872         unsigned long start = vma->vm_start;
 873         unsigned long size = (vma->vm_end - vma->vm_start);
 874         struct omap_vout_device *vout = file->private_data;
 875         struct videobuf_queue *q = &vout->vbq;
 876
 877         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 878                         " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__,
 879                         vma->vm_pgoff, vma->vm_start, vma->vm_end);
 880
 881         /* look for the buffer to map */
 882         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
 883                 if (NULL == q->bufs[i])
 884                         continue;
 885                 if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
 886                         continue;
 887                 if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
 888                         break;
 889         }
 890
 891         if (VIDEO_MAX_FRAME == i) {
 892                 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
 893                                 "offset invalid [offset=0x%lx]\n",
 894                                 (vma->vm_pgoff << PAGE_SHIFT));
 895                 return -EINVAL;
 896         }
 897         /* Check the size of the buffer */
 898         if (size > vout->buffer_size) {
 899                 v4l2_err(&vout->vid_dev->v4l2_dev,
 900                                 "insufficient memory [%lu] [%u]\n",
 901                                 size, vout->buffer_size);
 902                 return -ENOMEM;
 903         }
 904
 905         q->bufs[i]->baddr = vma->vm_start;
 906
 907         vma->vm_flags |= VM_RESERVED;
 908         vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 909         vma->vm_ops = &omap_vout_vm_ops;
 910         vma->vm_private_data = (void *) vout;
 911         pos = (void *)vout->buf_virt_addr[i];
 912         vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT;
 913         while (size > 0) {
 914                 unsigned long pfn;
 915                 pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
 916                 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
 917                         return -EAGAIN;
 918                 start += PAGE_SIZE;
 919                 pos += PAGE_SIZE;
 920                 size -= PAGE_SIZE;
 921         }
 922         vout->mmap_count++;
 923         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
 924
 925         return 0;
 926 }
 927
 928 static int omap_vout_release(struct file *file)
 929 {
 930         unsigned int ret, i;
 931         struct videobuf_queue *q;
 932         struct omapvideo_info *ovid;
 933         struct omap_vout_device *vout = file->private_data;
 934
 935         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
 936         ovid = &vout->vid_info;
 937
 938         if (!vout)
 939                 return 0;
 940
 941         q = &vout->vbq;
 942         /* Disable all the overlay managers connected with this interface */
 943         for (i = 0; i < ovid->num_overlays; i++) {
 944                 struct omap_overlay *ovl = ovid->overlays[i];
 945                 if (ovl->manager && ovl->manager->device) {
 946                         struct omap_overlay_info info;
 947                         ovl->get_overlay_info(ovl, &info);
 948                         info.enabled = 0;
 949                         ovl->set_overlay_info(ovl, &info);
 950                 }
 951         }
 952         /* Turn off the pipeline */
 953         ret = omapvid_apply_changes(vout);
 954         if (ret)
 955                 v4l2_warn(&vout->vid_dev->v4l2_dev,
 956                                 "Unable to apply changes\n");
 957
 958         /* Free all buffers */
 959         omap_vout_free_extra_buffers(vout);
 960
 961         /* Free the VRFB buffers only if they are allocated
 962          * during reqbufs.  Don't free if init time allocated
 963          */
 964         if (ovid->rotation_type == VOUT_ROT_VRFB) {
 965                 if (!vout->vrfb_static_allocation)
 966                         omap_vout_free_vrfb_buffers(vout);
 967         }
 968         videobuf_mmap_free(q);
 969
 970         /* Even if apply changes fails we should continue
 971            freeing allocated memory */
 972         if (vout->streaming) {
 973                 u32 mask = 0;
 974
 975                 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN |
 976                         DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2;
 977                 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
 978                 vout->streaming = 0;
 979
 980                 videobuf_streamoff(q);
 981                 videobuf_queue_cancel(q);
 982         }
 983
 984         if (vout->mmap_count != 0)
 985                 vout->mmap_count = 0;
 986
 987         vout->opened -= 1;
 988         file->private_data = NULL;
 989
 990         if (vout->buffer_allocated)
 991                 videobuf_mmap_free(q);
 992
 993         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
 994         return ret;
 995 }
 996
 997 static int omap_vout_open(struct file *file)
 998 {
 999         struct videobuf_queue *q;
1000         struct omap_vout_device *vout = NULL;
1001
1002         vout = video_drvdata(file);
1003         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
1004
1005         if (vout == NULL)
1006                 return -ENODEV;
1007
1008         /* for now, we only support single open */
1009         if (vout->opened)
1010                 return -EBUSY;
1011
1012         vout->opened += 1;
1013
1014         file->private_data = vout;
1015         vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1016
1017         q = &vout->vbq;
1018         video_vbq_ops.buf_setup = omap_vout_buffer_setup;
1019         video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
1020         video_vbq_ops.buf_release = omap_vout_buffer_release;
1021         video_vbq_ops.buf_queue = omap_vout_buffer_queue;
1022         spin_lock_init(&vout->vbq_lock);
1023
1024         videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
1025                         &vout->vbq_lock, vout->type, V4L2_FIELD_NONE,
1026                         sizeof(struct videobuf_buffer), vout, NULL);
1027
1028         v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1029         return 0;
1030 }
1031
1032 /*
1033  * V4L2 ioctls
1034  */
1035 static int vidioc_querycap(struct file *file, void *fh,
1036                 struct v4l2_capability *cap)
1037 {
1038         struct omap_vout_device *vout = fh;
1039
1040         strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
1041         strlcpy(cap->card, vout->vfd->name, sizeof(cap->card));
1042         cap->bus_info[0] = '\0';
1043         cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT;
1044
1045         return 0;
1046 }
1047
1048 static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
1049                         struct v4l2_fmtdesc *fmt)
1050 {
1051         int index = fmt->index;
1052
1053         if (index >= NUM_OUTPUT_FORMATS)
1054                 return -EINVAL;
1055
1056         fmt->flags = omap_formats[index].flags;
1057         strlcpy(fmt->description, omap_formats[index].description,
1058                         sizeof(fmt->description));
1059         fmt->pixelformat = omap_formats[index].pixelformat;
1060
1061         return 0;
1062 }
1063
1064 static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
1065                         struct v4l2_format *f)
1066 {
1067         struct omap_vout_device *vout = fh;
1068
1069         f->fmt.pix = vout->pix;
1070         return 0;
1071
1072 }
1073
1074 static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
1075                         struct v4l2_format *f)
1076 {
1077         struct omap_overlay *ovl;
1078         struct omapvideo_info *ovid;
1079         struct omap_video_timings *timing;
1080         struct omap_vout_device *vout = fh;
1081
1082         ovid = &vout->vid_info;
1083         ovl = ovid->overlays[0];
1084
1085         if (!ovl->manager || !ovl->manager->device)
1086                 return -EINVAL;
1087         /* get the display device attached to the overlay */
1088         timing = &ovl->manager->device->panel.timings;
1089
1090         vout->fbuf.fmt.height = timing->y_res;
1091         vout->fbuf.fmt.width = timing->x_res;
1092
1093         omap_vout_try_format(&f->fmt.pix);
1094         return 0;
1095 }
1096
1097 static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
1098                         struct v4l2_format *f)
1099 {
1100         int ret, bpp;
1101         struct omap_overlay *ovl;
1102         struct omapvideo_info *ovid;
1103         struct omap_video_timings *timing;
1104         struct omap_vout_device *vout = fh;
1105
1106         if (vout->streaming)
1107                 return -EBUSY;
1108
1109         mutex_lock(&vout->lock);
1110
1111         ovid = &vout->vid_info;
1112         ovl = ovid->overlays[0];
1113
1114         /* get the display device attached to the overlay */
1115         if (!ovl->manager || !ovl->manager->device) {
1116                 ret = -EINVAL;
1117                 goto s_fmt_vid_out_exit;
1118         }
1119         timing = &ovl->manager->device->panel.timings;
1120
1121         /* We dont support RGB24-packed mode if vrfb rotation
1122          * is enabled*/
1123         if ((is_rotation_enabled(vout)) &&
1124                         f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1125                 ret = -EINVAL;
1126                 goto s_fmt_vid_out_exit;
1127         }
1128
1129         /* get the framebuffer parameters */
1130
1131         if (is_rotation_90_or_270(vout)) {
1132                 vout->fbuf.fmt.height = timing->x_res;
1133                 vout->fbuf.fmt.width = timing->y_res;
1134         } else {
1135                 vout->fbuf.fmt.height = timing->y_res;
1136                 vout->fbuf.fmt.width = timing->x_res;
1137         }
1138
1139         /* change to samller size is OK */
1140
1141         bpp = omap_vout_try_format(&f->fmt.pix);
1142         f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
1143
1144         /* try & set the new output format */
1145         vout->bpp = bpp;
1146         vout->pix = f->fmt.pix;
1147         vout->vrfb_bpp = 1;
1148
1149         /* If YUYV then vrfb bpp is 2, for  others its 1 */
1150         if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
1151                         V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
1152                 vout->vrfb_bpp = 2;
1153
1154         /* set default crop and win */
1155         omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
1156
1157         /* Save the changes in the overlay strcuture */
1158         ret = omapvid_init(vout, 0);
1159         if (ret) {
1160                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1161                 goto s_fmt_vid_out_exit;
1162         }
1163
1164         ret = 0;
1165
1166 s_fmt_vid_out_exit:
1167         mutex_unlock(&vout->lock);
1168         return ret;
1169 }
1170
1171 static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
1172                         struct v4l2_format *f)
1173 {
1174         int ret = 0;
1175         struct omap_vout_device *vout = fh;
1176         struct omap_overlay *ovl;
1177         struct omapvideo_info *ovid;
1178         struct v4l2_window *win = &f->fmt.win;
1179
1180         ovid = &vout->vid_info;
1181         ovl = ovid->overlays[0];
1182
1183         ret = omap_vout_try_window(&vout->fbuf, win);
1184
1185         if (!ret) {
1186                 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1187                         win->global_alpha = 255;
1188                 else
1189                         win->global_alpha = f->fmt.win.global_alpha;
1190         }
1191
1192         return ret;
1193 }
1194
1195 static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
1196                         struct v4l2_format *f)
1197 {
1198         int ret = 0;
1199         struct omap_overlay *ovl;
1200         struct omapvideo_info *ovid;
1201         struct omap_vout_device *vout = fh;
1202         struct v4l2_window *win = &f->fmt.win;
1203
1204         mutex_lock(&vout->lock);
1205         ovid = &vout->vid_info;
1206         ovl = ovid->overlays[0];
1207
1208         ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
1209         if (!ret) {
1210                 /* Video1 plane does not support global alpha on OMAP3 */
1211                 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1212                         vout->win.global_alpha = 255;
1213                 else
1214                         vout->win.global_alpha = f->fmt.win.global_alpha;
1215
1216                 vout->win.chromakey = f->fmt.win.chromakey;
1217         }
1218         mutex_unlock(&vout->lock);
1219         return ret;
1220 }
1221
1222 static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh,
1223                         struct v4l2_fmtdesc *fmt)
1224 {
1225         int index = fmt->index;
1226
1227         if (index >= NUM_OUTPUT_FORMATS)
1228                 return -EINVAL;
1229
1230         fmt->flags = omap_formats[index].flags;
1231         strlcpy(fmt->description, omap_formats[index].description,
1232                         sizeof(fmt->description));
1233         fmt->pixelformat = omap_formats[index].pixelformat;
1234         return 0;
1235 }
1236
1237 static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
1238                         struct v4l2_format *f)
1239 {
1240         u32 key_value =  0;
1241         struct omap_overlay *ovl;
1242         struct omapvideo_info *ovid;
1243         struct omap_vout_device *vout = fh;
1244         struct omap_overlay_manager_info info;
1245         struct v4l2_window *win = &f->fmt.win;
1246
1247         ovid = &vout->vid_info;
1248         ovl = ovid->overlays[0];
1249
1250         win->w = vout->win.w;
1251         win->field = vout->win.field;
1252         win->global_alpha = vout->win.global_alpha;
1253
1254         if (ovl->manager && ovl->manager->get_manager_info) {
1255                 ovl->manager->get_manager_info(ovl->manager, &info);
1256                 key_value = info.trans_key;
1257         }
1258         win->chromakey = key_value;
1259         return 0;
1260 }
1261
1262 static int vidioc_cropcap(struct file *file, void *fh,
1263                 struct v4l2_cropcap *cropcap)
1264 {
1265         struct omap_vout_device *vout = fh;
1266         struct v4l2_pix_format *pix = &vout->pix;
1267
1268         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1269                 return -EINVAL;
1270
1271         /* Width and height are always even */
1272         cropcap->bounds.width = pix->width & ~1;
1273         cropcap->bounds.height = pix->height & ~1;
1274
1275         omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect);
1276         cropcap->pixelaspect.numerator = 1;
1277         cropcap->pixelaspect.denominator = 1;
1278         return 0;
1279 }
1280
1281 static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1282 {
1283         struct omap_vout_device *vout = fh;
1284
1285         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1286                 return -EINVAL;
1287         crop->c = vout->crop;
1288         return 0;
1289 }
1290
1291 static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1292 {
1293         int ret = -EINVAL;
1294         struct omap_vout_device *vout = fh;
1295         struct omapvideo_info *ovid;
1296         struct omap_overlay *ovl;
1297         struct omap_video_timings *timing;
1298
1299         if (vout->streaming)
1300                 return -EBUSY;
1301
1302         mutex_lock(&vout->lock);
1303         ovid = &vout->vid_info;
1304         ovl = ovid->overlays[0];
1305
1306         if (!ovl->manager || !ovl->manager->device) {
1307                 ret = -EINVAL;
1308                 goto s_crop_err;
1309         }
1310         /* get the display device attached to the overlay */
1311         timing = &ovl->manager->device->panel.timings;
1312
1313         if (is_rotation_90_or_270(vout)) {
1314                 vout->fbuf.fmt.height = timing->x_res;
1315                 vout->fbuf.fmt.width = timing->y_res;
1316         } else {
1317                 vout->fbuf.fmt.height = timing->y_res;
1318                 vout->fbuf.fmt.width = timing->x_res;
1319         }
1320
1321         if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1322                 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
1323                                 &vout->fbuf, &crop->c);
1324
1325 s_crop_err:
1326         mutex_unlock(&vout->lock);
1327         return ret;
1328 }
1329
1330 static int vidioc_queryctrl(struct file *file, void *fh,
1331                 struct v4l2_queryctrl *ctrl)
1332 {
1333         int ret = 0;
1334
1335         switch (ctrl->id) {
1336         case V4L2_CID_ROTATE:
1337                 ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0);
1338                 break;
1339         case V4L2_CID_BG_COLOR:
1340                 ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0);
1341                 break;
1342         case V4L2_CID_VFLIP:
1343                 ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
1344                 break;
1345         default:
1346                 ctrl->name[0] = '\0';
1347                 ret = -EINVAL;
1348         }
1349         return ret;
1350 }
1351
1352 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
1353 {
1354         int ret = 0;
1355         struct omap_vout_device *vout = fh;
1356
1357         switch (ctrl->id) {
1358         case V4L2_CID_ROTATE:
1359                 ctrl->value = vout->control[0].value;
1360                 break;
1361         case V4L2_CID_BG_COLOR:
1362         {
1363                 struct omap_overlay_manager_info info;
1364                 struct omap_overlay *ovl;
1365
1366                 ovl = vout->vid_info.overlays[0];
1367                 if (!ovl->manager || !ovl->manager->get_manager_info) {
1368                         ret = -EINVAL;
1369                         break;
1370                 }
1371
1372                 ovl->manager->get_manager_info(ovl->manager, &info);
1373                 ctrl->value = info.default_color;
1374                 break;
1375         }
1376         case V4L2_CID_VFLIP:
1377                 ctrl->value = vout->control[2].value;
1378                 break;
1379         default:
1380                 ret = -EINVAL;
1381         }
1382         return ret;
1383 }
1384
1385 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
1386 {
1387         int ret = 0;
1388         struct omap_vout_device *vout = fh;
1389
1390         switch (a->id) {
1391         case V4L2_CID_ROTATE:
1392         {
1393                 struct omapvideo_info *ovid;
1394                 int rotation = a->value;
1395
1396                 ovid = &vout->vid_info;
1397
1398                 mutex_lock(&vout->lock);
1399                 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
1400                         mutex_unlock(&vout->lock);
1401                         ret = -ERANGE;
1402                         break;
1403                 }
1404
1405                 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1406                         mutex_unlock(&vout->lock);
1407                         ret = -EINVAL;
1408                         break;
1409                 }
1410
1411                 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
1412                                                         vout->mirror)) {
1413                         mutex_unlock(&vout->lock);
1414                         ret = -EINVAL;
1415                         break;
1416                 }
1417
1418                 vout->control[0].value = rotation;
1419                 mutex_unlock(&vout->lock);
1420                 break;
1421         }
1422         case V4L2_CID_BG_COLOR:
1423         {
1424                 struct omap_overlay *ovl;
1425                 unsigned int  color = a->value;
1426                 struct omap_overlay_manager_info info;
1427
1428                 ovl = vout->vid_info.overlays[0];
1429
1430                 mutex_lock(&vout->lock);
1431                 if (!ovl->manager || !ovl->manager->get_manager_info) {
1432                         mutex_unlock(&vout->lock);
1433                         ret = -EINVAL;
1434                         break;
1435                 }
1436
1437                 ovl->manager->get_manager_info(ovl->manager, &info);
1438                 info.default_color = color;
1439                 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
1440                         mutex_unlock(&vout->lock);
1441                         ret = -EINVAL;
1442                         break;
1443                 }
1444
1445                 vout->control[1].value = color;
1446                 mutex_unlock(&vout->lock);
1447                 break;
1448         }
1449         case V4L2_CID_VFLIP:
1450         {
1451                 struct omap_overlay *ovl;
1452                 struct omapvideo_info *ovid;
1453                 unsigned int  mirror = a->value;
1454
1455                 ovid = &vout->vid_info;
1456                 ovl = ovid->overlays[0];
1457
1458                 mutex_lock(&vout->lock);
1459                 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
1460                         mutex_unlock(&vout->lock);
1461                         ret = -ERANGE;
1462                         break;
1463                 }
1464
1465                 if (mirror  && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1466                         mutex_unlock(&vout->lock);
1467                         ret = -EINVAL;
1468                         break;
1469                 }
1470                 vout->mirror = mirror;
1471                 vout->control[2].value = mirror;
1472                 mutex_unlock(&vout->lock);
1473                 break;
1474         }
1475         default:
1476                 ret = -EINVAL;
1477         }
1478         return ret;
1479 }
1480
1481 static int vidioc_reqbufs(struct file *file, void *fh,
1482                         struct v4l2_requestbuffers *req)
1483 {
1484         int ret = 0;
1485         unsigned int i, num_buffers = 0;
1486         struct omap_vout_device *vout = fh;
1487         struct videobuf_queue *q = &vout->vbq;
1488
1489         if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0))
1490                 return -EINVAL;
1491         /* if memory is not mmp or userptr
1492            return error */
1493         if ((V4L2_MEMORY_MMAP != req->memory) &&
1494                         (V4L2_MEMORY_USERPTR != req->memory))
1495                 return -EINVAL;
1496
1497         mutex_lock(&vout->lock);
1498         /* Cannot be requested when streaming is on */
1499         if (vout->streaming) {
1500                 ret = -EBUSY;
1501                 goto reqbuf_err;
1502         }
1503
1504         /* If buffers are already allocated free them */
1505         if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
1506                 if (vout->mmap_count) {
1507                         ret = -EBUSY;
1508                         goto reqbuf_err;
1509                 }
1510                 num_buffers = (vout->vid == OMAP_VIDEO1) ?
1511                         video1_numbuffers : video2_numbuffers;
1512                 for (i = num_buffers; i < vout->buffer_allocated; i++) {
1513                         omap_vout_free_buffer(vout->buf_virt_addr[i],
1514                                         vout->buffer_size);
1515                         vout->buf_virt_addr[i] = 0;
1516                         vout->buf_phy_addr[i] = 0;
1517                 }
1518                 vout->buffer_allocated = num_buffers;
1519                 videobuf_mmap_free(q);
1520         } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
1521                 if (vout->buffer_allocated) {
1522                         videobuf_mmap_free(q);
1523                         for (i = 0; i < vout->buffer_allocated; i++) {
1524                                 kfree(q->bufs[i]);
1525                                 q->bufs[i] = NULL;
1526                         }
1527                         vout->buffer_allocated = 0;
1528                 }
1529         }
1530
1531         /*store the memory type in data structure */
1532         vout->memory = req->memory;
1533
1534         INIT_LIST_HEAD(&vout->dma_queue);
1535
1536         /* call videobuf_reqbufs api */
1537         ret = videobuf_reqbufs(q, req);
1538         if (ret < 0)
1539                 goto reqbuf_err;
1540
1541         vout->buffer_allocated = req->count;
1542
1543 reqbuf_err:
1544         mutex_unlock(&vout->lock);
1545         return ret;
1546 }
1547
1548 static int vidioc_querybuf(struct file *file, void *fh,
1549                         struct v4l2_buffer *b)
1550 {
1551         struct omap_vout_device *vout = fh;
1552
1553         return videobuf_querybuf(&vout->vbq, b);
1554 }
1555
1556 static int vidioc_qbuf(struct file *file, void *fh,
1557                         struct v4l2_buffer *buffer)
1558 {
1559         struct omap_vout_device *vout = fh;
1560         struct videobuf_queue *q = &vout->vbq;
1561
1562         if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
1563                         (buffer->index >= vout->buffer_allocated) ||
1564                         (q->bufs[buffer->index]->memory != buffer->memory)) {
1565                 return -EINVAL;
1566         }
1567         if (V4L2_MEMORY_USERPTR == buffer->memory) {
1568                 if ((buffer->length < vout->pix.sizeimage) ||
1569                                 (0 == buffer->m.userptr)) {
1570                         return -EINVAL;
1571                 }
1572         }
1573
1574         if ((is_rotation_enabled(vout)) &&
1575                         vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
1576                 v4l2_warn(&vout->vid_dev->v4l2_dev,
1577                                 "DMA Channel not allocated for Rotation\n");
1578                 return -EINVAL;
1579         }
1580
1581         return videobuf_qbuf(q, buffer);
1582 }
1583
1584 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1585 {
1586         struct omap_vout_device *vout = fh;
1587         struct videobuf_queue *q = &vout->vbq;
1588
1589         int ret;
1590         u32 addr;
1591         unsigned long size;
1592         struct videobuf_buffer *vb;
1593
1594         vb = q->bufs[b->index];
1595
1596         if (!vout->streaming)
1597                 return -EINVAL;
1598
1599         if (file->f_flags & O_NONBLOCK)
1600                 /* Call videobuf_dqbuf for non blocking mode */
1601                 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
1602         else
1603                 /* Call videobuf_dqbuf for  blocking mode */
1604                 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
1605
1606         addr = (unsigned long) vout->buf_phy_addr[vb->i];
1607         size = (unsigned long) vb->size;
1608         dma_unmap_single(vout->vid_dev->v4l2_dev.dev,  addr,
1609                                 size, DMA_TO_DEVICE);
1610         return ret;
1611 }
1612
1613 static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1614 {
1615         int ret = 0, j;
1616         u32 addr = 0, mask = 0;
1617         struct omap_vout_device *vout = fh;
1618         struct videobuf_queue *q = &vout->vbq;
1619         struct omapvideo_info *ovid = &vout->vid_info;
1620
1621         mutex_lock(&vout->lock);
1622
1623         if (vout->streaming) {
1624                 ret = -EBUSY;
1625                 goto streamon_err;
1626         }
1627
1628         ret = videobuf_streamon(q);
1629         if (ret)
1630                 goto streamon_err;
1631
1632         if (list_empty(&vout->dma_queue)) {
1633                 ret = -EIO;
1634                 goto streamon_err1;
1635         }
1636
1637         /* Get the next frame from the buffer queue */
1638         vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1639                         struct videobuf_buffer, queue);
1640         /* Remove buffer from the buffer queue */
1641         list_del(&vout->cur_frm->queue);
1642         /* Mark state of the current frame to active */
1643         vout->cur_frm->state = VIDEOBUF_ACTIVE;
1644         /* Initialize field_id and started member */
1645         vout->field_id = 0;
1646
1647         /* set flag here. Next QBUF will start DMA */
1648         vout->streaming = 1;
1649
1650         vout->first_int = 1;
1651
1652         if (omap_vout_calculate_offset(vout)) {
1653                 ret = -EINVAL;
1654                 goto streamon_err1;
1655         }
1656         addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i]
1657                 + vout->cropped_offset;
1658
1659         mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1660                 | DISPC_IRQ_VSYNC2;
1661
1662         omap_dispc_register_isr(omap_vout_isr, vout, mask);
1663
1664         for (j = 0; j < ovid->num_overlays; j++) {
1665                 struct omap_overlay *ovl = ovid->overlays[j];
1666
1667                 if (ovl->manager && ovl->manager->device) {
1668                         struct omap_overlay_info info;
1669                         ovl->get_overlay_info(ovl, &info);
1670                         info.enabled = 1;
1671                         info.paddr = addr;
1672                         if (ovl->set_overlay_info(ovl, &info)) {
1673                                 ret = -EINVAL;
1674                                 goto streamon_err1;
1675                         }
1676                 }
1677         }
1678
1679         /* First save the configuration in ovelray structure */
1680         ret = omapvid_init(vout, addr);
1681         if (ret)
1682                 v4l2_err(&vout->vid_dev->v4l2_dev,
1683                                 "failed to set overlay info\n");
1684         /* Enable the pipeline and set the Go bit */
1685         ret = omapvid_apply_changes(vout);
1686         if (ret)
1687                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1688
1689         ret = 0;
1690
1691 streamon_err1:
1692         if (ret)
1693                 ret = videobuf_streamoff(q);
1694 streamon_err:
1695         mutex_unlock(&vout->lock);
1696         return ret;
1697 }
1698
1699 static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1700 {
1701         u32 mask = 0;
1702         int ret = 0, j;
1703         struct omap_vout_device *vout = fh;
1704         struct omapvideo_info *ovid = &vout->vid_info;
1705
1706         if (!vout->streaming)
1707                 return -EINVAL;
1708
1709         vout->streaming = 0;
1710         mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1711                 | DISPC_IRQ_VSYNC2;
1712
1713         omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1714
1715         for (j = 0; j < ovid->num_overlays; j++) {
1716                 struct omap_overlay *ovl = ovid->overlays[j];
1717
1718                 if (ovl->manager && ovl->manager->device) {
1719                         struct omap_overlay_info info;
1720
1721                         ovl->get_overlay_info(ovl, &info);
1722                         info.enabled = 0;
1723                         ret = ovl->set_overlay_info(ovl, &info);
1724                         if (ret)
1725                                 v4l2_err(&vout->vid_dev->v4l2_dev,
1726                                 "failed to update overlay info in streamoff\n");
1727                 }
1728         }
1729
1730         /* Turn of the pipeline */
1731         ret = omapvid_apply_changes(vout);
1732         if (ret)
1733                 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in"
1734                                 " streamoff\n");
1735
1736         INIT_LIST_HEAD(&vout->dma_queue);
1737         ret = videobuf_streamoff(&vout->vbq);
1738
1739         return ret;
1740 }
1741
1742 static int vidioc_s_fbuf(struct file *file, void *fh,
1743                                 struct v4l2_framebuffer *a)
1744 {
1745         int enable = 0;
1746         struct omap_overlay *ovl;
1747         struct omapvideo_info *ovid;
1748         struct omap_vout_device *vout = fh;
1749         struct omap_overlay_manager_info info;
1750         enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1751
1752         ovid = &vout->vid_info;
1753         ovl = ovid->overlays[0];
1754
1755         /* OMAP DSS doesn't support Source and Destination color
1756            key together */
1757         if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
1758                         (a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
1759                 return -EINVAL;
1760         /* OMAP DSS Doesn't support the Destination color key
1761            and alpha blending together */
1762         if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
1763                         (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA))
1764                 return -EINVAL;
1765
1766         if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) {
1767                 vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1768                 key_type =  OMAP_DSS_COLOR_KEY_VID_SRC;
1769         } else
1770                 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1771
1772         if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) {
1773                 vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1774                 key_type =  OMAP_DSS_COLOR_KEY_GFX_DST;
1775         } else
1776                 vout->fbuf.flags &=  ~V4L2_FBUF_FLAG_CHROMAKEY;
1777
1778         if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
1779                                 V4L2_FBUF_FLAG_SRC_CHROMAKEY))
1780                 enable = 1;
1781         else
1782                 enable = 0;
1783         if (ovl->manager && ovl->manager->get_manager_info &&
1784                         ovl->manager->set_manager_info) {
1785
1786                 ovl->manager->get_manager_info(ovl->manager, &info);
1787                 info.trans_enabled = enable;
1788                 info.trans_key_type = key_type;
1789                 info.trans_key = vout->win.chromakey;
1790
1791                 if (ovl->manager->set_manager_info(ovl->manager, &info))
1792                         return -EINVAL;
1793         }
1794         if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
1795                 vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1796                 enable = 1;
1797         } else {
1798                 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
1799                 enable = 0;
1800         }
1801         if (ovl->manager && ovl->manager->get_manager_info &&
1802                         ovl->manager->set_manager_info) {
1803                 ovl->manager->get_manager_info(ovl->manager, &info);
1804                 /* enable this only if there is no zorder cap */
1805                 if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
1806                         info.partial_alpha_enabled = enable;
1807                 if (ovl->manager->set_manager_info(ovl->manager, &info))
1808                         return -EINVAL;
1809         }
1810
1811         return 0;
1812 }
1813
1814 static int vidioc_g_fbuf(struct file *file, void *fh,
1815                 struct v4l2_framebuffer *a)
1816 {
1817         struct omap_overlay *ovl;
1818         struct omapvideo_info *ovid;
1819         struct omap_vout_device *vout = fh;
1820         struct omap_overlay_manager_info info;
1821
1822         ovid = &vout->vid_info;
1823         ovl = ovid->overlays[0];
1824
1825         a->flags = 0x0;
1826         a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY
1827                 | V4L2_FBUF_CAP_SRC_CHROMAKEY;
1828
1829         if (ovl->manager && ovl->manager->get_manager_info) {
1830                 ovl->manager->get_manager_info(ovl->manager, &info);
1831                 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
1832                         a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1833                 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
1834                         a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1835         }
1836         if (ovl->manager && ovl->manager->get_manager_info) {
1837                 ovl->manager->get_manager_info(ovl->manager, &info);
1838                 if (info.partial_alpha_enabled)
1839                         a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1840         }
1841
1842         return 0;
1843 }
1844
1845 static const struct v4l2_ioctl_ops vout_ioctl_ops = {
1846         .vidioc_querycap                        = vidioc_querycap,
1847         .vidioc_enum_fmt_vid_out                = vidioc_enum_fmt_vid_out,
1848         .vidioc_g_fmt_vid_out                   = vidioc_g_fmt_vid_out,
1849         .vidioc_try_fmt_vid_out                 = vidioc_try_fmt_vid_out,
1850         .vidioc_s_fmt_vid_out                   = vidioc_s_fmt_vid_out,
1851         .vidioc_queryctrl                       = vidioc_queryctrl,
1852         .vidioc_g_ctrl                          = vidioc_g_ctrl,
1853         .vidioc_s_fbuf                          = vidioc_s_fbuf,
1854         .vidioc_g_fbuf                          = vidioc_g_fbuf,
1855         .vidioc_s_ctrl                          = vidioc_s_ctrl,
1856         .vidioc_try_fmt_vid_overlay             = vidioc_try_fmt_vid_overlay,
1857         .vidioc_s_fmt_vid_overlay               = vidioc_s_fmt_vid_overlay,
1858         .vidioc_enum_fmt_vid_overlay            = vidioc_enum_fmt_vid_overlay,
1859         .vidioc_g_fmt_vid_overlay               = vidioc_g_fmt_vid_overlay,
1860         .vidioc_cropcap                         = vidioc_cropcap,
1861         .vidioc_g_crop                          = vidioc_g_crop,
1862         .vidioc_s_crop                          = vidioc_s_crop,
1863         .vidioc_reqbufs                         = vidioc_reqbufs,
1864         .vidioc_querybuf                        = vidioc_querybuf,
1865         .vidioc_qbuf                            = vidioc_qbuf,
1866         .vidioc_dqbuf                           = vidioc_dqbuf,
1867         .vidioc_streamon                        = vidioc_streamon,
1868         .vidioc_streamoff                       = vidioc_streamoff,
1869 };
1870
1871 static const struct v4l2_file_operations omap_vout_fops = {
1872         .owner          = THIS_MODULE,
1873         .poll           = omap_vout_poll,
1874         .unlocked_ioctl = video_ioctl2,
1875         .mmap           = omap_vout_mmap,
1876         .open           = omap_vout_open,
1877         .release        = omap_vout_release,
1878 };
1879
1880 /* Init functions used during driver initialization */
1881 /* Initial setup of video_data */
1882 static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
1883 {
1884         struct video_device *vfd;
1885         struct v4l2_pix_format *pix;
1886         struct v4l2_control *control;
1887         struct omap_dss_device *display =
1888                 vout->vid_info.overlays[0]->manager->device;
1889
1890         /* set the default pix */
1891         pix = &vout->pix;
1892
1893         /* Set the default picture of QVGA  */
1894         pix->width = QQVGA_WIDTH;
1895         pix->height = QQVGA_HEIGHT;
1896
1897         /* Default pixel format is RGB 5-6-5 */
1898         pix->pixelformat = V4L2_PIX_FMT_RGB565;
1899         pix->field = V4L2_FIELD_ANY;
1900         pix->bytesperline = pix->width * 2;
1901         pix->sizeimage = pix->bytesperline * pix->height;
1902         pix->priv = 0;
1903         pix->colorspace = V4L2_COLORSPACE_JPEG;
1904
1905         vout->bpp = RGB565_BPP;
1906         vout->fbuf.fmt.width  =  display->panel.timings.x_res;
1907         vout->fbuf.fmt.height =  display->panel.timings.y_res;
1908
1909         /* Set the data structures for the overlay parameters*/
1910         vout->win.global_alpha = 255;
1911         vout->fbuf.flags = 0;
1912         vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
1913                 V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY;
1914         vout->win.chromakey = 0;
1915
1916         omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
1917
1918         /*Initialize the control variables for
1919           rotation, flipping and background color. */
1920         control = vout->control;
1921         control[0].id = V4L2_CID_ROTATE;
1922         control[0].value = 0;
1923         vout->rotation = 0;
1924         vout->mirror = 0;
1925         vout->control[2].id = V4L2_CID_HFLIP;
1926         vout->control[2].value = 0;
1927         if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
1928                 vout->vrfb_bpp = 2;
1929
1930         control[1].id = V4L2_CID_BG_COLOR;
1931         control[1].value = 0;
1932
1933         /* initialize the video_device struct */
1934         vfd = vout->vfd = video_device_alloc();
1935
1936         if (!vfd) {
1937                 printk(KERN_ERR VOUT_NAME ": could not allocate"
1938                                 " video device struct\n");
1939                 return -ENOMEM;
1940         }
1941         vfd->release = video_device_release;
1942         vfd->ioctl_ops = &vout_ioctl_ops;
1943
1944         strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
1945
1946         vfd->fops = &omap_vout_fops;
1947         vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
1948         mutex_init(&vout->lock);
1949
1950         vfd->minor = -1;
1951         return 0;
1952
1953 }
1954
1955 /* Setup video buffers */
1956 static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
1957                 int vid_num)
1958 {
1959         u32 numbuffers;
1960         int ret = 0, i;
1961         struct omapvideo_info *ovid;
1962         struct omap_vout_device *vout;
1963         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1964         struct omap2video_device *vid_dev =
1965                 container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
1966
1967         vout = vid_dev->vouts[vid_num];
1968         ovid = &vout->vid_info;
1969
1970         numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers;
1971         vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize;
1972         dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size);
1973
1974         for (i = 0; i < numbuffers; i++) {
1975                 vout->buf_virt_addr[i] =
1976                         omap_vout_alloc_buffer(vout->buffer_size,
1977                                         (u32 *) &vout->buf_phy_addr[i]);
1978                 if (!vout->buf_virt_addr[i]) {
1979                         numbuffers = i;
1980                         ret = -ENOMEM;
1981                         goto free_buffers;
1982                 }
1983         }
1984
1985         vout->cropped_offset = 0;
1986
1987         if (ovid->rotation_type == VOUT_ROT_VRFB) {
1988                 int static_vrfb_allocation = (vid_num == 0) ?
1989                         vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
1990                 ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
1991                                 static_vrfb_allocation);
1992         }
1993
1994         return ret;
1995
1996 free_buffers:
1997         for (i = 0; i < numbuffers; i++) {
1998                 omap_vout_free_buffer(vout->buf_virt_addr[i],
1999                                                 vout->buffer_size);
2000                 vout->buf_virt_addr[i] = 0;
2001                 vout->buf_phy_addr[i] = 0;
2002         }
2003         return ret;
2004
2005 }
2006
2007 /* Create video out devices */
2008 static int __init omap_vout_create_video_devices(struct platform_device *pdev)
2009 {
2010         int ret = 0, k;
2011         struct omap_vout_device *vout;
2012         struct video_device *vfd = NULL;
2013         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2014         struct omap2video_device *vid_dev = container_of(v4l2_dev,
2015                         struct omap2video_device, v4l2_dev);
2016
2017         for (k = 0; k < pdev->num_resources; k++) {
2018
2019                 vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
2020                 if (!vout) {
2021                         dev_err(&pdev->dev, ": could not allocate memory\n");
2022                         return -ENOMEM;
2023                 }
2024
2025                 vout->vid = k;
2026                 vid_dev->vouts[k] = vout;
2027                 vout->vid_dev = vid_dev;
2028                 /* Select video2 if only 1 overlay is controlled by V4L2 */
2029                 if (pdev->num_resources == 1)
2030                         vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
2031                 else
2032                         /* Else select video1 and video2 one by one. */
2033                         vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
2034                 vout->vid_info.num_overlays = 1;
2035                 vout->vid_info.id = k + 1;
2036
2037                 /* Set VRFB as rotation_type for omap2 and omap3 */
2038                 if (cpu_is_omap24xx() || cpu_is_omap34xx())
2039                         vout->vid_info.rotation_type = VOUT_ROT_VRFB;
2040
2041                 /* Setup the default configuration for the video devices
2042                  */
2043                 if (omap_vout_setup_video_data(vout) != 0) {
2044                         ret = -ENOMEM;
2045                         goto error;
2046                 }
2047
2048                 /* Allocate default number of buffers for the video streaming
2049                  * and reserve the VRFB space for rotation
2050                  */
2051                 if (omap_vout_setup_video_bufs(pdev, k) != 0) {
2052                         ret = -ENOMEM;
2053                         goto error1;
2054                 }
2055
2056                 /* Register the Video device with V4L2
2057                  */
2058                 vfd = vout->vfd;
2059                 if (video_register_device(vfd, VFL_TYPE_GRABBER, -1) < 0) {
2060                         dev_err(&pdev->dev, ": Could not register "
2061                                         "Video for Linux device\n");
2062                         vfd->minor = -1;
2063                         ret = -ENODEV;
2064                         goto error2;
2065                 }
2066                 video_set_drvdata(vfd, vout);
2067
2068                 /* Configure the overlay structure */
2069                 ret = omapvid_init(vid_dev->vouts[k], 0);
2070                 if (!ret)
2071                         goto success;
2072
2073 error2:
2074                 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
2075                         omap_vout_release_vrfb(vout);
2076                 omap_vout_free_buffers(vout);
2077 error1:
2078                 video_device_release(vfd);
2079 error:
2080                 kfree(vout);
2081                 return ret;
2082
2083 success:
2084                 dev_info(&pdev->dev, ": registered and initialized"
2085                                 " video device %d\n", vfd->minor);
2086                 if (k == (pdev->num_resources - 1))
2087                         return 0;
2088         }
2089
2090         return -ENODEV;
2091 }
2092 /* Driver functions */
2093 static void omap_vout_cleanup_device(struct omap_vout_device *vout)
2094 {
2095         struct video_device *vfd;
2096         struct omapvideo_info *ovid;
2097
2098         if (!vout)
2099                 return;
2100
2101         vfd = vout->vfd;
2102         ovid = &vout->vid_info;
2103         if (vfd) {
2104                 if (!video_is_registered(vfd)) {
2105                         /*
2106                          * The device was never registered, so release the
2107                          * video_device struct directly.
2108                          */
2109                         video_device_release(vfd);
2110                 } else {
2111                         /*
2112                          * The unregister function will release the video_device
2113                          * struct as well as unregistering it.
2114                          */
2115                         video_unregister_device(vfd);
2116                 }
2117         }
2118         if (ovid->rotation_type == VOUT_ROT_VRFB) {
2119                 omap_vout_release_vrfb(vout);
2120                 /* Free the VRFB buffer if allocated
2121                  * init time
2122                  */
2123                 if (vout->vrfb_static_allocation)
2124                         omap_vout_free_vrfb_buffers(vout);
2125         }
2126         omap_vout_free_buffers(vout);
2127
2128         kfree(vout);
2129 }
2130
2131 static int omap_vout_remove(struct platform_device *pdev)
2132 {
2133         int k;
2134         struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2135         struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
2136                         omap2video_device, v4l2_dev);
2137
2138         v4l2_device_unregister(v4l2_dev);
2139         for (k = 0; k < pdev->num_resources; k++)
2140                 omap_vout_cleanup_device(vid_dev->vouts[k]);
2141
2142         for (k = 0; k < vid_dev->num_displays; k++) {
2143                 if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
2144                         vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
2145
2146                 omap_dss_put_device(vid_dev->displays[k]);
2147         }
2148         kfree(vid_dev);
2149         return 0;
2150 }
2151
2152 static int __init omap_vout_probe(struct platform_device *pdev)
2153 {
2154         int ret = 0, i;
2155         struct omap_overlay *ovl;
2156         struct omap_dss_device *dssdev = NULL;
2157         struct omap_dss_device *def_display;
2158         struct omap2video_device *vid_dev = NULL;
2159
2160         if (pdev->num_resources == 0) {
2161                 dev_err(&pdev->dev, "probed for an unknown device\n");
2162                 return -ENODEV;
2163         }
2164
2165         vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
2166         if (vid_dev == NULL)
2167                 return -ENOMEM;
2168
2169         vid_dev->num_displays = 0;
2170         for_each_dss_dev(dssdev) {
2171                 omap_dss_get_device(dssdev);
2172                 vid_dev->displays[vid_dev->num_displays++] = dssdev;
2173         }
2174
2175         if (vid_dev->num_displays == 0) {
2176                 dev_err(&pdev->dev, "no displays\n");
2177                 ret = -EINVAL;
2178                 goto probe_err0;
2179         }
2180
2181         vid_dev->num_overlays = omap_dss_get_num_overlays();
2182         for (i = 0; i < vid_dev->num_overlays; i++)
2183                 vid_dev->overlays[i] = omap_dss_get_overlay(i);
2184
2185         vid_dev->num_managers = omap_dss_get_num_overlay_managers();
2186         for (i = 0; i < vid_dev->num_managers; i++)
2187                 vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
2188
2189         /* Get the Video1 overlay and video2 overlay.
2190          * Setup the Display attached to that overlays
2191          */
2192         for (i = 1; i < vid_dev->num_overlays; i++) {
2193                 ovl = omap_dss_get_overlay(i);
2194                 if (ovl->manager && ovl->manager->device) {
2195                         def_display = ovl->manager->device;
2196                 } else {
2197                         dev_warn(&pdev->dev, "cannot find display\n");
2198                         def_display = NULL;
2199                 }
2200                 if (def_display) {
2201                         struct omap_dss_driver *dssdrv = def_display->driver;
2202
2203                         ret = dssdrv->enable(def_display);
2204                         if (ret) {
2205                                 /* Here we are not considering a error
2206                                  *  as display may be enabled by frame
2207                                  *  buffer driver
2208                                  */
2209                                 dev_warn(&pdev->dev,
2210                                         "'%s' Display already enabled\n",
2211                                         def_display->name);
2212                         }
2213                 }
2214         }
2215
2216         if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
2217                 dev_err(&pdev->dev, "v4l2_device_register failed\n");
2218                 ret = -ENODEV;
2219                 goto probe_err1;
2220         }
2221
2222         ret = omap_vout_create_video_devices(pdev);
2223         if (ret)
2224                 goto probe_err2;
2225
2226         for (i = 0; i < vid_dev->num_displays; i++) {
2227                 struct omap_dss_device *display = vid_dev->displays[i];
2228
2229                 if (display->driver->update)
2230                         display->driver->update(display, 0, 0,
2231                                         display->panel.timings.x_res,
2232                                         display->panel.timings.y_res);
2233         }
2234         return 0;
2235
2236 probe_err2:
2237         v4l2_device_unregister(&vid_dev->v4l2_dev);
2238 probe_err1:
2239         for (i = 1; i < vid_dev->num_overlays; i++) {
2240                 def_display = NULL;
2241                 ovl = omap_dss_get_overlay(i);
2242                 if (ovl->manager && ovl->manager->device)
2243                         def_display = ovl->manager->device;
2244
2245                 if (def_display && def_display->driver)
2246                         def_display->driver->disable(def_display);
2247         }
2248 probe_err0:
2249         kfree(vid_dev);
2250         return ret;
2251 }
2252
2253 static struct platform_driver omap_vout_driver = {
2254         .driver = {
2255                 .name = VOUT_NAME,
2256         },
2257         .probe = omap_vout_probe,
2258         .remove = omap_vout_remove,
2259 };
2260
2261 static int __init omap_vout_init(void)
2262 {
2263         if (platform_driver_register(&omap_vout_driver) != 0) {
2264                 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
2265                 return -EINVAL;
2266         }
2267         return 0;
2268 }
2269
2270 static void omap_vout_cleanup(void)
2271 {
2272         platform_driver_unregister(&omap_vout_driver);
2273 }
2274
2275 late_initcall(omap_vout_init);
2276 module_exit(omap_vout_cleanup);