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