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