1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ 4 */ 5#include <linux/kernel.h> 6#include <linux/init.h> 7#include <linux/module.h> 8#include <linux/errno.h> 9#include <linux/interrupt.h> 10#include <linux/string.h> 11#include <linux/wait.h> 12#include <linux/time.h> 13#include <linux/platform_device.h> 14#include <linux/irq.h> 15#include <linux/mm.h> 16#include <linux/mutex.h> 17#include <linux/videodev2.h> 18#include <linux/slab.h> 19 20 21#include <media/v4l2-dev.h> 22#include <media/v4l2-common.h> 23#include <media/v4l2-ioctl.h> 24#include <media/v4l2-device.h> 25#include <media/davinci/vpbe_display.h> 26#include <media/davinci/vpbe_types.h> 27#include <media/davinci/vpbe.h> 28#include <media/davinci/vpbe_venc.h> 29#include <media/davinci/vpbe_osd.h> 30#include "vpbe_venc_regs.h" 31 32#define VPBE_DISPLAY_DRIVER "vpbe-v4l2" 33 34static int debug; 35 36#define VPBE_DEFAULT_NUM_BUFS 3 37 38module_param(debug, int, 0644); 39 40static int vpbe_set_osd_display_params(struct vpbe_display *disp_dev, 41 struct vpbe_layer *layer); 42 43static int venc_is_second_field(struct vpbe_display *disp_dev) 44{ 45 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 46 int ret, val; 47 48 ret = v4l2_subdev_call(vpbe_dev->venc, 49 core, 50 command, 51 VENC_GET_FLD, 52 &val); 53 if (ret < 0) { 54 v4l2_err(&vpbe_dev->v4l2_dev, 55 "Error in getting Field ID 0\n"); 56 return 1; 57 } 58 return val; 59} 60 61static void vpbe_isr_even_field(struct vpbe_display *disp_obj, 62 struct vpbe_layer *layer) 63{ 64 if (layer->cur_frm == layer->next_frm) 65 return; 66 67 layer->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns(); 68 vb2_buffer_done(&layer->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE); 69 /* Make cur_frm pointing to next_frm */ 70 layer->cur_frm = layer->next_frm; 71} 72 73static void vpbe_isr_odd_field(struct vpbe_display *disp_obj, 74 struct vpbe_layer *layer) 75{ 76 struct osd_state *osd_device = disp_obj->osd_device; 77 unsigned long addr; 78 79 spin_lock(&disp_obj->dma_queue_lock); 80 if (list_empty(&layer->dma_queue) || 81 (layer->cur_frm != layer->next_frm)) { 82 spin_unlock(&disp_obj->dma_queue_lock); 83 return; 84 } 85 /* 86 * one field is displayed configure 87 * the next frame if it is available 88 * otherwise hold on current frame 89 * Get next from the buffer queue 90 */ 91 layer->next_frm = list_entry(layer->dma_queue.next, 92 struct vpbe_disp_buffer, list); 93 /* Remove that from the buffer queue */ 94 list_del(&layer->next_frm->list); 95 spin_unlock(&disp_obj->dma_queue_lock); 96 /* Mark state of the frame to active */ 97 layer->next_frm->vb.vb2_buf.state = VB2_BUF_STATE_ACTIVE; 98 addr = vb2_dma_contig_plane_dma_addr(&layer->next_frm->vb.vb2_buf, 0); 99 osd_device->ops.start_layer(osd_device, 100 layer->layer_info.id, 101 addr, 102 disp_obj->cbcr_ofst); 103} 104 105/* interrupt service routine */ 106static irqreturn_t venc_isr(int irq, void *arg) 107{ 108 struct vpbe_display *disp_dev = (struct vpbe_display *)arg; 109 struct vpbe_layer *layer; 110 static unsigned last_event; 111 unsigned event = 0; 112 int fid; 113 int i; 114 115 if (!arg || !disp_dev->dev[0]) 116 return IRQ_HANDLED; 117 118 if (venc_is_second_field(disp_dev)) 119 event |= VENC_SECOND_FIELD; 120 else 121 event |= VENC_FIRST_FIELD; 122 123 if (event == (last_event & ~VENC_END_OF_FRAME)) { 124 /* 125 * If the display is non-interlaced, then we need to flag the 126 * end-of-frame event at every interrupt regardless of the 127 * value of the FIDST bit. We can conclude that the display is 128 * non-interlaced if the value of the FIDST bit is unchanged 129 * from the previous interrupt. 130 */ 131 event |= VENC_END_OF_FRAME; 132 } else if (event == VENC_SECOND_FIELD) { 133 /* end-of-frame for interlaced display */ 134 event |= VENC_END_OF_FRAME; 135 } 136 last_event = event; 137 138 for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { 139 layer = disp_dev->dev[i]; 140 141 if (!vb2_start_streaming_called(&layer->buffer_queue)) 142 continue; 143 144 if (layer->layer_first_int) { 145 layer->layer_first_int = 0; 146 continue; 147 } 148 /* Check the field format */ 149 if ((V4L2_FIELD_NONE == layer->pix_fmt.field) && 150 (event & VENC_END_OF_FRAME)) { 151 /* Progressive mode */ 152 153 vpbe_isr_even_field(disp_dev, layer); 154 vpbe_isr_odd_field(disp_dev, layer); 155 } else { 156 /* Interlaced mode */ 157 158 layer->field_id ^= 1; 159 if (event & VENC_FIRST_FIELD) 160 fid = 0; 161 else 162 fid = 1; 163 164 /* 165 * If field id does not match with store 166 * field id 167 */ 168 if (fid != layer->field_id) { 169 /* Make them in sync */ 170 layer->field_id = fid; 171 continue; 172 } 173 /* 174 * device field id and local field id are 175 * in sync. If this is even field 176 */ 177 if (0 == fid) 178 vpbe_isr_even_field(disp_dev, layer); 179 else /* odd field */ 180 vpbe_isr_odd_field(disp_dev, layer); 181 } 182 } 183 184 return IRQ_HANDLED; 185} 186 187/* 188 * vpbe_buffer_prepare() 189 * This is the callback function called from vb2_qbuf() function 190 * the buffer is prepared and user space virtual address is converted into 191 * physical address 192 */ 193static int vpbe_buffer_prepare(struct vb2_buffer *vb) 194{ 195 struct vb2_queue *q = vb->vb2_queue; 196 struct vpbe_layer *layer = vb2_get_drv_priv(q); 197 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 198 unsigned long addr; 199 200 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 201 "vpbe_buffer_prepare\n"); 202 203 vb2_set_plane_payload(vb, 0, layer->pix_fmt.sizeimage); 204 if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) 205 return -EINVAL; 206 207 addr = vb2_dma_contig_plane_dma_addr(vb, 0); 208 if (!IS_ALIGNED(addr, 8)) { 209 v4l2_err(&vpbe_dev->v4l2_dev, 210 "buffer_prepare:offset is not aligned to 32 bytes\n"); 211 return -EINVAL; 212 } 213 return 0; 214} 215 216/* 217 * vpbe_buffer_setup() 218 * This function allocates memory for the buffers 219 */ 220static int 221vpbe_buffer_queue_setup(struct vb2_queue *vq, 222 unsigned int *nbuffers, unsigned int *nplanes, 223 unsigned int sizes[], struct device *alloc_devs[]) 224 225{ 226 /* Get the file handle object and layer object */ 227 struct vpbe_layer *layer = vb2_get_drv_priv(vq); 228 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 229 230 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_buffer_setup\n"); 231 232 /* Store number of buffers allocated in numbuffer member */ 233 if (vq->num_buffers + *nbuffers < VPBE_DEFAULT_NUM_BUFS) 234 *nbuffers = VPBE_DEFAULT_NUM_BUFS - vq->num_buffers; 235 236 if (*nplanes) 237 return sizes[0] < layer->pix_fmt.sizeimage ? -EINVAL : 0; 238 239 *nplanes = 1; 240 sizes[0] = layer->pix_fmt.sizeimage; 241 242 return 0; 243} 244 245/* 246 * vpbe_buffer_queue() 247 * This function adds the buffer to DMA queue 248 */ 249static void vpbe_buffer_queue(struct vb2_buffer *vb) 250{ 251 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 252 /* Get the file handle object and layer object */ 253 struct vpbe_disp_buffer *buf = container_of(vbuf, 254 struct vpbe_disp_buffer, vb); 255 struct vpbe_layer *layer = vb2_get_drv_priv(vb->vb2_queue); 256 struct vpbe_display *disp = layer->disp_dev; 257 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 258 unsigned long flags; 259 260 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 261 "vpbe_buffer_queue\n"); 262 263 /* add the buffer to the DMA queue */ 264 spin_lock_irqsave(&disp->dma_queue_lock, flags); 265 list_add_tail(&buf->list, &layer->dma_queue); 266 spin_unlock_irqrestore(&disp->dma_queue_lock, flags); 267} 268 269static int vpbe_start_streaming(struct vb2_queue *vq, unsigned int count) 270{ 271 struct vpbe_layer *layer = vb2_get_drv_priv(vq); 272 struct osd_state *osd_device = layer->disp_dev->osd_device; 273 int ret; 274 275 osd_device->ops.disable_layer(osd_device, layer->layer_info.id); 276 277 /* Get the next frame from the buffer queue */ 278 layer->next_frm = layer->cur_frm = list_entry(layer->dma_queue.next, 279 struct vpbe_disp_buffer, list); 280 /* Remove buffer from the buffer queue */ 281 list_del(&layer->cur_frm->list); 282 /* Mark state of the current frame to active */ 283 layer->cur_frm->vb.vb2_buf.state = VB2_BUF_STATE_ACTIVE; 284 /* Initialize field_id and started member */ 285 layer->field_id = 0; 286 287 /* Set parameters in OSD and VENC */ 288 ret = vpbe_set_osd_display_params(layer->disp_dev, layer); 289 if (ret < 0) { 290 struct vpbe_disp_buffer *buf, *tmp; 291 292 vb2_buffer_done(&layer->cur_frm->vb.vb2_buf, 293 VB2_BUF_STATE_QUEUED); 294 list_for_each_entry_safe(buf, tmp, &layer->dma_queue, list) { 295 list_del(&buf->list); 296 vb2_buffer_done(&buf->vb.vb2_buf, 297 VB2_BUF_STATE_QUEUED); 298 } 299 300 return ret; 301 } 302 303 /* 304 * if request format is yuv420 semiplanar, need to 305 * enable both video windows 306 */ 307 layer->layer_first_int = 1; 308 309 return ret; 310} 311 312static void vpbe_stop_streaming(struct vb2_queue *vq) 313{ 314 struct vpbe_layer *layer = vb2_get_drv_priv(vq); 315 struct osd_state *osd_device = layer->disp_dev->osd_device; 316 struct vpbe_display *disp = layer->disp_dev; 317 unsigned long flags; 318 319 if (!vb2_is_streaming(vq)) 320 return; 321 322 osd_device->ops.disable_layer(osd_device, layer->layer_info.id); 323 324 /* release all active buffers */ 325 spin_lock_irqsave(&disp->dma_queue_lock, flags); 326 if (layer->cur_frm == layer->next_frm) { 327 vb2_buffer_done(&layer->cur_frm->vb.vb2_buf, 328 VB2_BUF_STATE_ERROR); 329 } else { 330 if (layer->cur_frm) 331 vb2_buffer_done(&layer->cur_frm->vb.vb2_buf, 332 VB2_BUF_STATE_ERROR); 333 if (layer->next_frm) 334 vb2_buffer_done(&layer->next_frm->vb.vb2_buf, 335 VB2_BUF_STATE_ERROR); 336 } 337 338 while (!list_empty(&layer->dma_queue)) { 339 layer->next_frm = list_entry(layer->dma_queue.next, 340 struct vpbe_disp_buffer, list); 341 list_del(&layer->next_frm->list); 342 vb2_buffer_done(&layer->next_frm->vb.vb2_buf, 343 VB2_BUF_STATE_ERROR); 344 } 345 spin_unlock_irqrestore(&disp->dma_queue_lock, flags); 346} 347 348static const struct vb2_ops video_qops = { 349 .queue_setup = vpbe_buffer_queue_setup, 350 .wait_prepare = vb2_ops_wait_prepare, 351 .wait_finish = vb2_ops_wait_finish, 352 .buf_prepare = vpbe_buffer_prepare, 353 .start_streaming = vpbe_start_streaming, 354 .stop_streaming = vpbe_stop_streaming, 355 .buf_queue = vpbe_buffer_queue, 356}; 357 358static 359struct vpbe_layer* 360_vpbe_display_get_other_win_layer(struct vpbe_display *disp_dev, 361 struct vpbe_layer *layer) 362{ 363 enum vpbe_display_device_id thiswin, otherwin; 364 thiswin = layer->device_id; 365 366 otherwin = (thiswin == VPBE_DISPLAY_DEVICE_0) ? 367 VPBE_DISPLAY_DEVICE_1 : VPBE_DISPLAY_DEVICE_0; 368 return disp_dev->dev[otherwin]; 369} 370 371static int vpbe_set_osd_display_params(struct vpbe_display *disp_dev, 372 struct vpbe_layer *layer) 373{ 374 struct osd_layer_config *cfg = &layer->layer_info.config; 375 struct osd_state *osd_device = disp_dev->osd_device; 376 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 377 unsigned long addr; 378 int ret; 379 380 addr = vb2_dma_contig_plane_dma_addr(&layer->cur_frm->vb.vb2_buf, 0); 381 /* Set address in the display registers */ 382 osd_device->ops.start_layer(osd_device, 383 layer->layer_info.id, 384 addr, 385 disp_dev->cbcr_ofst); 386 387 ret = osd_device->ops.enable_layer(osd_device, 388 layer->layer_info.id, 0); 389 if (ret < 0) { 390 v4l2_err(&vpbe_dev->v4l2_dev, 391 "Error in enabling osd window layer 0\n"); 392 return -1; 393 } 394 395 /* Enable the window */ 396 layer->layer_info.enable = 1; 397 if (cfg->pixfmt == PIXFMT_NV12) { 398 struct vpbe_layer *otherlayer = 399 _vpbe_display_get_other_win_layer(disp_dev, layer); 400 401 ret = osd_device->ops.enable_layer(osd_device, 402 otherlayer->layer_info.id, 1); 403 if (ret < 0) { 404 v4l2_err(&vpbe_dev->v4l2_dev, 405 "Error in enabling osd window layer 1\n"); 406 return -1; 407 } 408 otherlayer->layer_info.enable = 1; 409 } 410 return 0; 411} 412 413static void 414vpbe_disp_calculate_scale_factor(struct vpbe_display *disp_dev, 415 struct vpbe_layer *layer, 416 int expected_xsize, int expected_ysize) 417{ 418 struct display_layer_info *layer_info = &layer->layer_info; 419 struct v4l2_pix_format *pixfmt = &layer->pix_fmt; 420 struct osd_layer_config *cfg = &layer->layer_info.config; 421 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 422 int calculated_xsize; 423 int h_exp = 0; 424 int v_exp = 0; 425 int h_scale; 426 int v_scale; 427 428 v4l2_std_id standard_id = vpbe_dev->current_timings.std_id; 429 430 /* 431 * Application initially set the image format. Current display 432 * size is obtained from the vpbe display controller. expected_xsize 433 * and expected_ysize are set through S_SELECTION ioctl. Based on this, 434 * driver will calculate the scale factors for vertical and 435 * horizontal direction so that the image is displayed scaled 436 * and expanded. Application uses expansion to display the image 437 * in a square pixel. Otherwise it is displayed using displays 438 * pixel aspect ratio.It is expected that application chooses 439 * the crop coordinates for cropped or scaled display. if crop 440 * size is less than the image size, it is displayed cropped or 441 * it is displayed scaled and/or expanded. 442 * 443 * to begin with, set the crop window same as expected. Later we 444 * will override with scaled window size 445 */ 446 447 cfg->xsize = pixfmt->width; 448 cfg->ysize = pixfmt->height; 449 layer_info->h_zoom = ZOOM_X1; /* no horizontal zoom */ 450 layer_info->v_zoom = ZOOM_X1; /* no horizontal zoom */ 451 layer_info->h_exp = H_EXP_OFF; /* no horizontal zoom */ 452 layer_info->v_exp = V_EXP_OFF; /* no horizontal zoom */ 453 454 if (pixfmt->width < expected_xsize) { 455 h_scale = vpbe_dev->current_timings.xres / pixfmt->width; 456 if (h_scale < 2) 457 h_scale = 1; 458 else if (h_scale >= 4) 459 h_scale = 4; 460 else 461 h_scale = 2; 462 cfg->xsize *= h_scale; 463 if (cfg->xsize < expected_xsize) { 464 if ((standard_id & V4L2_STD_525_60) || 465 (standard_id & V4L2_STD_625_50)) { 466 calculated_xsize = (cfg->xsize * 467 VPBE_DISPLAY_H_EXP_RATIO_N) / 468 VPBE_DISPLAY_H_EXP_RATIO_D; 469 if (calculated_xsize <= expected_xsize) { 470 h_exp = 1; 471 cfg->xsize = calculated_xsize; 472 } 473 } 474 } 475 if (h_scale == 2) 476 layer_info->h_zoom = ZOOM_X2; 477 else if (h_scale == 4) 478 layer_info->h_zoom = ZOOM_X4; 479 if (h_exp) 480 layer_info->h_exp = H_EXP_9_OVER_8; 481 } else { 482 /* no scaling, only cropping. Set display area to crop area */ 483 cfg->xsize = expected_xsize; 484 } 485 486 if (pixfmt->height < expected_ysize) { 487 v_scale = expected_ysize / pixfmt->height; 488 if (v_scale < 2) 489 v_scale = 1; 490 else if (v_scale >= 4) 491 v_scale = 4; 492 else 493 v_scale = 2; 494 cfg->ysize *= v_scale; 495 if (cfg->ysize < expected_ysize) { 496 if ((standard_id & V4L2_STD_625_50)) { 497 calculated_xsize = (cfg->ysize * 498 VPBE_DISPLAY_V_EXP_RATIO_N) / 499 VPBE_DISPLAY_V_EXP_RATIO_D; 500 if (calculated_xsize <= expected_ysize) { 501 v_exp = 1; 502 cfg->ysize = calculated_xsize; 503 } 504 } 505 } 506 if (v_scale == 2) 507 layer_info->v_zoom = ZOOM_X2; 508 else if (v_scale == 4) 509 layer_info->v_zoom = ZOOM_X4; 510 if (v_exp) 511 layer_info->v_exp = V_EXP_6_OVER_5; 512 } else { 513 /* no scaling, only cropping. Set display area to crop area */ 514 cfg->ysize = expected_ysize; 515 } 516 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 517 "crop display xsize = %d, ysize = %d\n", 518 cfg->xsize, cfg->ysize); 519} 520 521static void vpbe_disp_adj_position(struct vpbe_display *disp_dev, 522 struct vpbe_layer *layer, 523 int top, int left) 524{ 525 struct osd_layer_config *cfg = &layer->layer_info.config; 526 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 527 528 cfg->xpos = min((unsigned int)left, 529 vpbe_dev->current_timings.xres - cfg->xsize); 530 cfg->ypos = min((unsigned int)top, 531 vpbe_dev->current_timings.yres - cfg->ysize); 532 533 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 534 "new xpos = %d, ypos = %d\n", 535 cfg->xpos, cfg->ypos); 536} 537 538static void vpbe_disp_check_window_params(struct vpbe_display *disp_dev, 539 struct v4l2_rect *c) 540{ 541 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 542 543 if ((c->width == 0) || 544 ((c->width + c->left) > vpbe_dev->current_timings.xres)) 545 c->width = vpbe_dev->current_timings.xres - c->left; 546 547 if ((c->height == 0) || ((c->height + c->top) > 548 vpbe_dev->current_timings.yres)) 549 c->height = vpbe_dev->current_timings.yres - c->top; 550 551 /* window height must be even for interlaced display */ 552 if (vpbe_dev->current_timings.interlaced) 553 c->height &= (~0x01); 554 555} 556 557/* 558 * vpbe_try_format() 559 * If user application provides width and height, and have bytesperline set 560 * to zero, driver calculates bytesperline and sizeimage based on hardware 561 * limits. 562 */ 563static int vpbe_try_format(struct vpbe_display *disp_dev, 564 struct v4l2_pix_format *pixfmt, int check) 565{ 566 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 567 int min_height = 1; 568 int min_width = 32; 569 int max_height; 570 int max_width; 571 int bpp; 572 573 if ((pixfmt->pixelformat != V4L2_PIX_FMT_UYVY) && 574 (pixfmt->pixelformat != V4L2_PIX_FMT_NV12)) 575 /* choose default as V4L2_PIX_FMT_UYVY */ 576 pixfmt->pixelformat = V4L2_PIX_FMT_UYVY; 577 578 /* Check the field format */ 579 if ((pixfmt->field != V4L2_FIELD_INTERLACED) && 580 (pixfmt->field != V4L2_FIELD_NONE)) { 581 if (vpbe_dev->current_timings.interlaced) 582 pixfmt->field = V4L2_FIELD_INTERLACED; 583 else 584 pixfmt->field = V4L2_FIELD_NONE; 585 } 586 587 if (pixfmt->field == V4L2_FIELD_INTERLACED) 588 min_height = 2; 589 590 if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) 591 bpp = 1; 592 else 593 bpp = 2; 594 595 max_width = vpbe_dev->current_timings.xres; 596 max_height = vpbe_dev->current_timings.yres; 597 598 min_width /= bpp; 599 600 if (!pixfmt->width || (pixfmt->width < min_width) || 601 (pixfmt->width > max_width)) { 602 pixfmt->width = vpbe_dev->current_timings.xres; 603 } 604 605 if (!pixfmt->height || (pixfmt->height < min_height) || 606 (pixfmt->height > max_height)) { 607 pixfmt->height = vpbe_dev->current_timings.yres; 608 } 609 610 if (pixfmt->bytesperline < (pixfmt->width * bpp)) 611 pixfmt->bytesperline = pixfmt->width * bpp; 612 613 /* Make the bytesperline 32 byte aligned */ 614 pixfmt->bytesperline = ((pixfmt->width * bpp + 31) & ~31); 615 616 if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) 617 pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height + 618 (pixfmt->bytesperline * pixfmt->height >> 1); 619 else 620 pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; 621 622 return 0; 623} 624 625static int vpbe_display_querycap(struct file *file, void *priv, 626 struct v4l2_capability *cap) 627{ 628 struct vpbe_layer *layer = video_drvdata(file); 629 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 630 631 snprintf(cap->driver, sizeof(cap->driver), "%s", 632 dev_name(vpbe_dev->pdev)); 633 snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", 634 dev_name(vpbe_dev->pdev)); 635 strscpy(cap->card, vpbe_dev->cfg->module_name, sizeof(cap->card)); 636 637 return 0; 638} 639 640static int vpbe_display_s_selection(struct file *file, void *priv, 641 struct v4l2_selection *sel) 642{ 643 struct vpbe_layer *layer = video_drvdata(file); 644 struct vpbe_display *disp_dev = layer->disp_dev; 645 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 646 struct osd_layer_config *cfg = &layer->layer_info.config; 647 struct osd_state *osd_device = disp_dev->osd_device; 648 struct v4l2_rect rect = sel->r; 649 int ret; 650 651 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 652 "VIDIOC_S_SELECTION, layer id = %d\n", layer->device_id); 653 654 if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT || 655 sel->target != V4L2_SEL_TGT_CROP) 656 return -EINVAL; 657 658 if (rect.top < 0) 659 rect.top = 0; 660 if (rect.left < 0) 661 rect.left = 0; 662 663 vpbe_disp_check_window_params(disp_dev, &rect); 664 665 osd_device->ops.get_layer_config(osd_device, 666 layer->layer_info.id, cfg); 667 668 vpbe_disp_calculate_scale_factor(disp_dev, layer, 669 rect.width, 670 rect.height); 671 vpbe_disp_adj_position(disp_dev, layer, rect.top, 672 rect.left); 673 ret = osd_device->ops.set_layer_config(osd_device, 674 layer->layer_info.id, cfg); 675 if (ret < 0) { 676 v4l2_err(&vpbe_dev->v4l2_dev, 677 "Error in set layer config:\n"); 678 return -EINVAL; 679 } 680 681 /* apply zooming and h or v expansion */ 682 osd_device->ops.set_zoom(osd_device, 683 layer->layer_info.id, 684 layer->layer_info.h_zoom, 685 layer->layer_info.v_zoom); 686 ret = osd_device->ops.set_vid_expansion(osd_device, 687 layer->layer_info.h_exp, 688 layer->layer_info.v_exp); 689 if (ret < 0) { 690 v4l2_err(&vpbe_dev->v4l2_dev, 691 "Error in set vid expansion:\n"); 692 return -EINVAL; 693 } 694 695 if ((layer->layer_info.h_zoom != ZOOM_X1) || 696 (layer->layer_info.v_zoom != ZOOM_X1) || 697 (layer->layer_info.h_exp != H_EXP_OFF) || 698 (layer->layer_info.v_exp != V_EXP_OFF)) 699 /* Enable expansion filter */ 700 osd_device->ops.set_interpolation_filter(osd_device, 1); 701 else 702 osd_device->ops.set_interpolation_filter(osd_device, 0); 703 704 sel->r = rect; 705 return 0; 706} 707 708static int vpbe_display_g_selection(struct file *file, void *priv, 709 struct v4l2_selection *sel) 710{ 711 struct vpbe_layer *layer = video_drvdata(file); 712 struct osd_layer_config *cfg = &layer->layer_info.config; 713 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 714 struct osd_state *osd_device = layer->disp_dev->osd_device; 715 struct v4l2_rect *rect = &sel->r; 716 717 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 718 "VIDIOC_G_SELECTION, layer id = %d\n", 719 layer->device_id); 720 721 if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 722 return -EINVAL; 723 724 switch (sel->target) { 725 case V4L2_SEL_TGT_CROP: 726 osd_device->ops.get_layer_config(osd_device, 727 layer->layer_info.id, cfg); 728 rect->top = cfg->ypos; 729 rect->left = cfg->xpos; 730 rect->width = cfg->xsize; 731 rect->height = cfg->ysize; 732 break; 733 case V4L2_SEL_TGT_CROP_DEFAULT: 734 case V4L2_SEL_TGT_CROP_BOUNDS: 735 rect->left = 0; 736 rect->top = 0; 737 rect->width = vpbe_dev->current_timings.xres; 738 rect->height = vpbe_dev->current_timings.yres; 739 break; 740 default: 741 return -EINVAL; 742 } 743 744 return 0; 745} 746 747static int vpbe_display_g_pixelaspect(struct file *file, void *priv, 748 int type, struct v4l2_fract *f) 749{ 750 struct vpbe_layer *layer = video_drvdata(file); 751 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 752 753 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_CROPCAP ioctl\n"); 754 755 if (type != V4L2_BUF_TYPE_VIDEO_OUTPUT) 756 return -EINVAL; 757 758 *f = vpbe_dev->current_timings.aspect; 759 return 0; 760} 761 762static int vpbe_display_g_fmt(struct file *file, void *priv, 763 struct v4l2_format *fmt) 764{ 765 struct vpbe_layer *layer = video_drvdata(file); 766 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 767 768 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 769 "VIDIOC_G_FMT, layer id = %d\n", 770 layer->device_id); 771 772 /* If buffer type is video output */ 773 if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { 774 v4l2_err(&vpbe_dev->v4l2_dev, "invalid type\n"); 775 return -EINVAL; 776 } 777 /* Fill in the information about format */ 778 fmt->fmt.pix = layer->pix_fmt; 779 780 return 0; 781} 782 783static int vpbe_display_enum_fmt(struct file *file, void *priv, 784 struct v4l2_fmtdesc *fmt) 785{ 786 struct vpbe_layer *layer = video_drvdata(file); 787 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 788 789 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 790 "VIDIOC_ENUM_FMT, layer id = %d\n", 791 layer->device_id); 792 if (fmt->index > 1) { 793 v4l2_err(&vpbe_dev->v4l2_dev, "Invalid format index\n"); 794 return -EINVAL; 795 } 796 797 /* Fill in the information about format */ 798 if (fmt->index == 0) 799 fmt->pixelformat = V4L2_PIX_FMT_UYVY; 800 else 801 fmt->pixelformat = V4L2_PIX_FMT_NV12; 802 803 return 0; 804} 805 806static int vpbe_display_s_fmt(struct file *file, void *priv, 807 struct v4l2_format *fmt) 808{ 809 struct vpbe_layer *layer = video_drvdata(file); 810 struct vpbe_display *disp_dev = layer->disp_dev; 811 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 812 struct osd_layer_config *cfg = &layer->layer_info.config; 813 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; 814 struct osd_state *osd_device = disp_dev->osd_device; 815 int ret; 816 817 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 818 "VIDIOC_S_FMT, layer id = %d\n", 819 layer->device_id); 820 821 if (vb2_is_busy(&layer->buffer_queue)) 822 return -EBUSY; 823 824 if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { 825 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "invalid type\n"); 826 return -EINVAL; 827 } 828 /* Check for valid pixel format */ 829 ret = vpbe_try_format(disp_dev, pixfmt, 1); 830 if (ret) 831 return ret; 832 833 /* YUV420 is requested, check availability of the 834 other video window */ 835 836 layer->pix_fmt = *pixfmt; 837 if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) { 838 struct vpbe_layer *otherlayer; 839 840 otherlayer = _vpbe_display_get_other_win_layer(disp_dev, layer); 841 /* if other layer is available, only 842 * claim it, do not configure it 843 */ 844 ret = osd_device->ops.request_layer(osd_device, 845 otherlayer->layer_info.id); 846 if (ret < 0) { 847 v4l2_err(&vpbe_dev->v4l2_dev, 848 "Display Manager failed to allocate layer\n"); 849 return -EBUSY; 850 } 851 } 852 853 /* Get osd layer config */ 854 osd_device->ops.get_layer_config(osd_device, 855 layer->layer_info.id, cfg); 856 /* Store the pixel format in the layer object */ 857 cfg->xsize = pixfmt->width; 858 cfg->ysize = pixfmt->height; 859 cfg->line_length = pixfmt->bytesperline; 860 cfg->ypos = 0; 861 cfg->xpos = 0; 862 cfg->interlaced = vpbe_dev->current_timings.interlaced; 863 864 if (V4L2_PIX_FMT_UYVY == pixfmt->pixelformat) 865 cfg->pixfmt = PIXFMT_YCBCRI; 866 867 /* Change of the default pixel format for both video windows */ 868 if (V4L2_PIX_FMT_NV12 == pixfmt->pixelformat) { 869 struct vpbe_layer *otherlayer; 870 cfg->pixfmt = PIXFMT_NV12; 871 otherlayer = _vpbe_display_get_other_win_layer(disp_dev, 872 layer); 873 otherlayer->layer_info.config.pixfmt = PIXFMT_NV12; 874 } 875 876 /* Set the layer config in the osd window */ 877 ret = osd_device->ops.set_layer_config(osd_device, 878 layer->layer_info.id, cfg); 879 if (ret < 0) { 880 v4l2_err(&vpbe_dev->v4l2_dev, 881 "Error in S_FMT params:\n"); 882 return -EINVAL; 883 } 884 885 /* Readback and fill the local copy of current pix format */ 886 osd_device->ops.get_layer_config(osd_device, 887 layer->layer_info.id, cfg); 888 889 return 0; 890} 891 892static int vpbe_display_try_fmt(struct file *file, void *priv, 893 struct v4l2_format *fmt) 894{ 895 struct vpbe_layer *layer = video_drvdata(file); 896 struct vpbe_display *disp_dev = layer->disp_dev; 897 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 898 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; 899 900 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_TRY_FMT\n"); 901 902 if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { 903 v4l2_err(&vpbe_dev->v4l2_dev, "invalid type\n"); 904 return -EINVAL; 905 } 906 907 /* Check for valid field format */ 908 return vpbe_try_format(disp_dev, pixfmt, 0); 909 910} 911 912/* 913 * vpbe_display_s_std - Set the given standard in the encoder 914 * 915 * Sets the standard if supported by the current encoder. Return the status. 916 * 0 - success & -EINVAL on error 917 */ 918static int vpbe_display_s_std(struct file *file, void *priv, 919 v4l2_std_id std_id) 920{ 921 struct vpbe_layer *layer = video_drvdata(file); 922 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 923 int ret; 924 925 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_STD\n"); 926 927 if (vb2_is_busy(&layer->buffer_queue)) 928 return -EBUSY; 929 930 if (vpbe_dev->ops.s_std) { 931 ret = vpbe_dev->ops.s_std(vpbe_dev, std_id); 932 if (ret) { 933 v4l2_err(&vpbe_dev->v4l2_dev, 934 "Failed to set standard for sub devices\n"); 935 return -EINVAL; 936 } 937 } else { 938 return -EINVAL; 939 } 940 941 return 0; 942} 943 944/* 945 * vpbe_display_g_std - Get the standard in the current encoder 946 * 947 * Get the standard in the current encoder. Return the status. 0 - success 948 * -EINVAL on error 949 */ 950static int vpbe_display_g_std(struct file *file, void *priv, 951 v4l2_std_id *std_id) 952{ 953 struct vpbe_layer *layer = video_drvdata(file); 954 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 955 956 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_STD\n"); 957 958 /* Get the standard from the current encoder */ 959 if (vpbe_dev->current_timings.timings_type & VPBE_ENC_STD) { 960 *std_id = vpbe_dev->current_timings.std_id; 961 return 0; 962 } 963 964 return -EINVAL; 965} 966 967/* 968 * vpbe_display_enum_output - enumerate outputs 969 * 970 * Enumerates the outputs available at the vpbe display 971 * returns the status, -EINVAL if end of output list 972 */ 973static int vpbe_display_enum_output(struct file *file, void *priv, 974 struct v4l2_output *output) 975{ 976 struct vpbe_layer *layer = video_drvdata(file); 977 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 978 int ret; 979 980 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_OUTPUT\n"); 981 982 /* Enumerate outputs */ 983 if (!vpbe_dev->ops.enum_outputs) 984 return -EINVAL; 985 986 ret = vpbe_dev->ops.enum_outputs(vpbe_dev, output); 987 if (ret) { 988 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 989 "Failed to enumerate outputs\n"); 990 return -EINVAL; 991 } 992 993 return 0; 994} 995 996/* 997 * vpbe_display_s_output - Set output to 998 * the output specified by the index 999 */ 1000static int vpbe_display_s_output(struct file *file, void *priv, 1001 unsigned int i) 1002{ 1003 struct vpbe_layer *layer = video_drvdata(file); 1004 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 1005 int ret; 1006 1007 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_OUTPUT\n"); 1008 1009 if (vb2_is_busy(&layer->buffer_queue)) 1010 return -EBUSY; 1011 1012 if (!vpbe_dev->ops.set_output) 1013 return -EINVAL; 1014 1015 ret = vpbe_dev->ops.set_output(vpbe_dev, i); 1016 if (ret) { 1017 v4l2_err(&vpbe_dev->v4l2_dev, 1018 "Failed to set output for sub devices\n"); 1019 return -EINVAL; 1020 } 1021 1022 return 0; 1023} 1024 1025/* 1026 * vpbe_display_g_output - Get output from subdevice 1027 * for a given by the index 1028 */ 1029static int vpbe_display_g_output(struct file *file, void *priv, 1030 unsigned int *i) 1031{ 1032 struct vpbe_layer *layer = video_drvdata(file); 1033 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 1034 1035 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_OUTPUT\n"); 1036 /* Get the standard from the current encoder */ 1037 *i = vpbe_dev->current_out_index; 1038 1039 return 0; 1040} 1041 1042/* 1043 * vpbe_display_enum_dv_timings - Enumerate the dv timings 1044 * 1045 * enum the timings in the current encoder. Return the status. 0 - success 1046 * -EINVAL on error 1047 */ 1048static int 1049vpbe_display_enum_dv_timings(struct file *file, void *priv, 1050 struct v4l2_enum_dv_timings *timings) 1051{ 1052 struct vpbe_layer *layer = video_drvdata(file); 1053 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 1054 int ret; 1055 1056 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_DV_TIMINGS\n"); 1057 1058 /* Enumerate outputs */ 1059 if (!vpbe_dev->ops.enum_dv_timings) 1060 return -EINVAL; 1061 1062 ret = vpbe_dev->ops.enum_dv_timings(vpbe_dev, timings); 1063 if (ret) { 1064 v4l2_err(&vpbe_dev->v4l2_dev, 1065 "Failed to enumerate dv timings info\n"); 1066 return -EINVAL; 1067 } 1068 1069 return 0; 1070} 1071 1072/* 1073 * vpbe_display_s_dv_timings - Set the dv timings 1074 * 1075 * Set the timings in the current encoder. Return the status. 0 - success 1076 * -EINVAL on error 1077 */ 1078static int 1079vpbe_display_s_dv_timings(struct file *file, void *priv, 1080 struct v4l2_dv_timings *timings) 1081{ 1082 struct vpbe_layer *layer = video_drvdata(file); 1083 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 1084 int ret; 1085 1086 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_DV_TIMINGS\n"); 1087 1088 if (vb2_is_busy(&layer->buffer_queue)) 1089 return -EBUSY; 1090 1091 /* Set the given standard in the encoder */ 1092 if (!vpbe_dev->ops.s_dv_timings) 1093 return -EINVAL; 1094 1095 ret = vpbe_dev->ops.s_dv_timings(vpbe_dev, timings); 1096 if (ret) { 1097 v4l2_err(&vpbe_dev->v4l2_dev, 1098 "Failed to set the dv timings info\n"); 1099 return -EINVAL; 1100 } 1101 1102 return 0; 1103} 1104 1105/* 1106 * vpbe_display_g_dv_timings - Set the dv timings 1107 * 1108 * Get the timings in the current encoder. Return the status. 0 - success 1109 * -EINVAL on error 1110 */ 1111static int 1112vpbe_display_g_dv_timings(struct file *file, void *priv, 1113 struct v4l2_dv_timings *dv_timings) 1114{ 1115 struct vpbe_layer *layer = video_drvdata(file); 1116 struct vpbe_device *vpbe_dev = layer->disp_dev->vpbe_dev; 1117 1118 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_DV_TIMINGS\n"); 1119 1120 /* Get the given standard in the encoder */ 1121 1122 if (vpbe_dev->current_timings.timings_type & 1123 VPBE_ENC_DV_TIMINGS) { 1124 *dv_timings = vpbe_dev->current_timings.dv_timings; 1125 } else { 1126 return -EINVAL; 1127 } 1128 1129 return 0; 1130} 1131 1132/* 1133 * vpbe_display_open() 1134 * It creates object of file handle structure and stores it in private_data 1135 * member of filepointer 1136 */ 1137static int vpbe_display_open(struct file *file) 1138{ 1139 struct vpbe_layer *layer = video_drvdata(file); 1140 struct vpbe_display *disp_dev = layer->disp_dev; 1141 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 1142 struct osd_state *osd_device = disp_dev->osd_device; 1143 int err; 1144 1145 /* creating context for file descriptor */ 1146 err = v4l2_fh_open(file); 1147 if (err) { 1148 v4l2_err(&vpbe_dev->v4l2_dev, "v4l2_fh_open failed\n"); 1149 return err; 1150 } 1151 1152 /* leaving if layer is already initialized */ 1153 if (!v4l2_fh_is_singular_file(file)) 1154 return err; 1155 1156 if (!layer->usrs) { 1157 if (mutex_lock_interruptible(&layer->opslock)) 1158 return -ERESTARTSYS; 1159 /* First claim the layer for this device */ 1160 err = osd_device->ops.request_layer(osd_device, 1161 layer->layer_info.id); 1162 mutex_unlock(&layer->opslock); 1163 if (err < 0) { 1164 /* Couldn't get layer */ 1165 v4l2_err(&vpbe_dev->v4l2_dev, 1166 "Display Manager failed to allocate layer\n"); 1167 v4l2_fh_release(file); 1168 return -EINVAL; 1169 } 1170 } 1171 /* Increment layer usrs counter */ 1172 layer->usrs++; 1173 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, 1174 "vpbe display device opened successfully\n"); 1175 return 0; 1176} 1177 1178/* 1179 * vpbe_display_release() 1180 * This function deletes buffer queue, frees the buffers and the davinci 1181 * display file * handle 1182 */ 1183static int vpbe_display_release(struct file *file) 1184{ 1185 struct vpbe_layer *layer = video_drvdata(file); 1186 struct osd_layer_config *cfg = &layer->layer_info.config; 1187 struct vpbe_display *disp_dev = layer->disp_dev; 1188 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 1189 struct osd_state *osd_device = disp_dev->osd_device; 1190 1191 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_release\n"); 1192 1193 mutex_lock(&layer->opslock); 1194 1195 osd_device->ops.disable_layer(osd_device, 1196 layer->layer_info.id); 1197 /* Decrement layer usrs counter */ 1198 layer->usrs--; 1199 /* If this file handle has initialize encoder device, reset it */ 1200 if (!layer->usrs) { 1201 if (cfg->pixfmt == PIXFMT_NV12) { 1202 struct vpbe_layer *otherlayer; 1203 otherlayer = 1204 _vpbe_display_get_other_win_layer(disp_dev, layer); 1205 osd_device->ops.disable_layer(osd_device, 1206 otherlayer->layer_info.id); 1207 osd_device->ops.release_layer(osd_device, 1208 otherlayer->layer_info.id); 1209 } 1210 osd_device->ops.disable_layer(osd_device, 1211 layer->layer_info.id); 1212 osd_device->ops.release_layer(osd_device, 1213 layer->layer_info.id); 1214 } 1215 1216 _vb2_fop_release(file, NULL); 1217 mutex_unlock(&layer->opslock); 1218 1219 disp_dev->cbcr_ofst = 0; 1220 1221 return 0; 1222} 1223 1224/* vpbe capture ioctl operations */ 1225static const struct v4l2_ioctl_ops vpbe_ioctl_ops = { 1226 .vidioc_querycap = vpbe_display_querycap, 1227 .vidioc_g_fmt_vid_out = vpbe_display_g_fmt, 1228 .vidioc_enum_fmt_vid_out = vpbe_display_enum_fmt, 1229 .vidioc_s_fmt_vid_out = vpbe_display_s_fmt, 1230 .vidioc_try_fmt_vid_out = vpbe_display_try_fmt, 1231 1232 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1233 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1234 .vidioc_querybuf = vb2_ioctl_querybuf, 1235 .vidioc_qbuf = vb2_ioctl_qbuf, 1236 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1237 .vidioc_streamon = vb2_ioctl_streamon, 1238 .vidioc_streamoff = vb2_ioctl_streamoff, 1239 .vidioc_expbuf = vb2_ioctl_expbuf, 1240 1241 .vidioc_g_pixelaspect = vpbe_display_g_pixelaspect, 1242 .vidioc_g_selection = vpbe_display_g_selection, 1243 .vidioc_s_selection = vpbe_display_s_selection, 1244 1245 .vidioc_s_std = vpbe_display_s_std, 1246 .vidioc_g_std = vpbe_display_g_std, 1247 1248 .vidioc_enum_output = vpbe_display_enum_output, 1249 .vidioc_s_output = vpbe_display_s_output, 1250 .vidioc_g_output = vpbe_display_g_output, 1251 1252 .vidioc_s_dv_timings = vpbe_display_s_dv_timings, 1253 .vidioc_g_dv_timings = vpbe_display_g_dv_timings, 1254 .vidioc_enum_dv_timings = vpbe_display_enum_dv_timings, 1255}; 1256 1257static const struct v4l2_file_operations vpbe_fops = { 1258 .owner = THIS_MODULE, 1259 .open = vpbe_display_open, 1260 .release = vpbe_display_release, 1261 .unlocked_ioctl = video_ioctl2, 1262 .mmap = vb2_fop_mmap, 1263 .poll = vb2_fop_poll, 1264}; 1265 1266static int vpbe_device_get(struct device *dev, void *data) 1267{ 1268 struct platform_device *pdev = to_platform_device(dev); 1269 struct vpbe_display *vpbe_disp = data; 1270 1271 if (strcmp("vpbe_controller", pdev->name) == 0) 1272 vpbe_disp->vpbe_dev = platform_get_drvdata(pdev); 1273 1274 if (strstr(pdev->name, "vpbe-osd")) 1275 vpbe_disp->osd_device = platform_get_drvdata(pdev); 1276 1277 return 0; 1278} 1279 1280static int init_vpbe_layer(int i, struct vpbe_display *disp_dev, 1281 struct platform_device *pdev) 1282{ 1283 struct vpbe_layer *vpbe_display_layer = NULL; 1284 struct video_device *vbd = NULL; 1285 1286 /* Allocate memory for four plane display objects */ 1287 disp_dev->dev[i] = kzalloc(sizeof(*disp_dev->dev[i]), GFP_KERNEL); 1288 if (!disp_dev->dev[i]) 1289 return -ENOMEM; 1290 1291 spin_lock_init(&disp_dev->dev[i]->irqlock); 1292 mutex_init(&disp_dev->dev[i]->opslock); 1293 1294 /* Get the pointer to the layer object */ 1295 vpbe_display_layer = disp_dev->dev[i]; 1296 vbd = &vpbe_display_layer->video_dev; 1297 /* Initialize field of video device */ 1298 vbd->release = video_device_release_empty; 1299 vbd->fops = &vpbe_fops; 1300 vbd->ioctl_ops = &vpbe_ioctl_ops; 1301 vbd->minor = -1; 1302 vbd->v4l2_dev = &disp_dev->vpbe_dev->v4l2_dev; 1303 vbd->lock = &vpbe_display_layer->opslock; 1304 vbd->vfl_dir = VFL_DIR_TX; 1305 vbd->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; 1306 1307 if (disp_dev->vpbe_dev->current_timings.timings_type & 1308 VPBE_ENC_STD) 1309 vbd->tvnorms = (V4L2_STD_525_60 | V4L2_STD_625_50); 1310 1311 snprintf(vbd->name, sizeof(vbd->name), 1312 "DaVinci_VPBE Display_DRIVER_V%d.%d.%d", 1313 (VPBE_DISPLAY_VERSION_CODE >> 16) & 0xff, 1314 (VPBE_DISPLAY_VERSION_CODE >> 8) & 0xff, 1315 (VPBE_DISPLAY_VERSION_CODE) & 0xff); 1316 1317 vpbe_display_layer->device_id = i; 1318 1319 vpbe_display_layer->layer_info.id = 1320 ((i == VPBE_DISPLAY_DEVICE_0) ? WIN_VID0 : WIN_VID1); 1321 1322 1323 return 0; 1324} 1325 1326static int register_device(struct vpbe_layer *vpbe_display_layer, 1327 struct vpbe_display *disp_dev, 1328 struct platform_device *pdev) 1329{ 1330 int err; 1331 1332 v4l2_info(&disp_dev->vpbe_dev->v4l2_dev, 1333 "Trying to register VPBE display device.\n"); 1334 v4l2_info(&disp_dev->vpbe_dev->v4l2_dev, 1335 "layer=%p,layer->video_dev=%p\n", 1336 vpbe_display_layer, 1337 &vpbe_display_layer->video_dev); 1338 1339 vpbe_display_layer->video_dev.queue = &vpbe_display_layer->buffer_queue; 1340 err = video_register_device(&vpbe_display_layer->video_dev, 1341 VFL_TYPE_VIDEO, 1342 -1); 1343 if (err) 1344 return -ENODEV; 1345 1346 vpbe_display_layer->disp_dev = disp_dev; 1347 /* set the driver data in platform device */ 1348 platform_set_drvdata(pdev, disp_dev); 1349 video_set_drvdata(&vpbe_display_layer->video_dev, 1350 vpbe_display_layer); 1351 1352 return 0; 1353} 1354 1355 1356 1357/* 1358 * vpbe_display_probe() 1359 * This function creates device entries by register itself to the V4L2 driver 1360 * and initializes fields of each layer objects 1361 */ 1362static int vpbe_display_probe(struct platform_device *pdev) 1363{ 1364 struct vpbe_display *disp_dev; 1365 struct v4l2_device *v4l2_dev; 1366 struct resource *res = NULL; 1367 struct vb2_queue *q; 1368 int k; 1369 int i; 1370 int err; 1371 int irq; 1372 1373 printk(KERN_DEBUG "vpbe_display_probe\n"); 1374 /* Allocate memory for vpbe_display */ 1375 disp_dev = devm_kzalloc(&pdev->dev, sizeof(*disp_dev), GFP_KERNEL); 1376 if (!disp_dev) 1377 return -ENOMEM; 1378 1379 spin_lock_init(&disp_dev->dma_queue_lock); 1380 /* 1381 * Scan all the platform devices to find the vpbe 1382 * controller device and get the vpbe_dev object 1383 */ 1384 err = bus_for_each_dev(&platform_bus_type, NULL, disp_dev, 1385 vpbe_device_get); 1386 if (err < 0) 1387 return err; 1388 1389 v4l2_dev = &disp_dev->vpbe_dev->v4l2_dev; 1390 /* Initialize the vpbe display controller */ 1391 if (disp_dev->vpbe_dev->ops.initialize) { 1392 err = disp_dev->vpbe_dev->ops.initialize(&pdev->dev, 1393 disp_dev->vpbe_dev); 1394 if (err) { 1395 v4l2_err(v4l2_dev, "Error initing vpbe\n"); 1396 err = -ENOMEM; 1397 goto probe_out; 1398 } 1399 } 1400 1401 for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { 1402 if (init_vpbe_layer(i, disp_dev, pdev)) { 1403 err = -ENODEV; 1404 goto probe_out; 1405 } 1406 } 1407 1408 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); 1409 if (!res) { 1410 v4l2_err(v4l2_dev, "Unable to get VENC interrupt resource\n"); 1411 err = -ENODEV; 1412 goto probe_out; 1413 } 1414 1415 irq = res->start; 1416 err = devm_request_irq(&pdev->dev, irq, venc_isr, 0, 1417 VPBE_DISPLAY_DRIVER, disp_dev); 1418 if (err) { 1419 v4l2_err(v4l2_dev, "VPBE IRQ request failed\n"); 1420 goto probe_out; 1421 } 1422 1423 for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { 1424 /* initialize vb2 queue */ 1425 q = &disp_dev->dev[i]->buffer_queue; 1426 memset(q, 0, sizeof(*q)); 1427 q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; 1428 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1429 q->drv_priv = disp_dev->dev[i]; 1430 q->ops = &video_qops; 1431 q->mem_ops = &vb2_dma_contig_memops; 1432 q->buf_struct_size = sizeof(struct vpbe_disp_buffer); 1433 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1434 q->min_buffers_needed = 1; 1435 q->lock = &disp_dev->dev[i]->opslock; 1436 q->dev = disp_dev->vpbe_dev->pdev; 1437 err = vb2_queue_init(q); 1438 if (err) { 1439 v4l2_err(v4l2_dev, "vb2_queue_init() failed\n"); 1440 goto probe_out; 1441 } 1442 1443 INIT_LIST_HEAD(&disp_dev->dev[i]->dma_queue); 1444 1445 if (register_device(disp_dev->dev[i], disp_dev, pdev)) { 1446 err = -ENODEV; 1447 goto probe_out; 1448 } 1449 } 1450 1451 v4l2_dbg(1, debug, v4l2_dev, 1452 "Successfully completed the probing of vpbe v4l2 device\n"); 1453 1454 return 0; 1455 1456probe_out: 1457 for (k = 0; k < VPBE_DISPLAY_MAX_DEVICES; k++) { 1458 /* Unregister video device */ 1459 if (disp_dev->dev[k]) { 1460 video_unregister_device(&disp_dev->dev[k]->video_dev); 1461 kfree(disp_dev->dev[k]); 1462 } 1463 } 1464 return err; 1465} 1466 1467/* 1468 * vpbe_display_remove() 1469 * It un-register hardware layer from V4L2 driver 1470 */ 1471static int vpbe_display_remove(struct platform_device *pdev) 1472{ 1473 struct vpbe_layer *vpbe_display_layer; 1474 struct vpbe_display *disp_dev = platform_get_drvdata(pdev); 1475 struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; 1476 int i; 1477 1478 v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_remove\n"); 1479 1480 /* deinitialize the vpbe display controller */ 1481 if (vpbe_dev->ops.deinitialize) 1482 vpbe_dev->ops.deinitialize(&pdev->dev, vpbe_dev); 1483 /* un-register device */ 1484 for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { 1485 /* Get the pointer to the layer object */ 1486 vpbe_display_layer = disp_dev->dev[i]; 1487 /* Unregister video device */ 1488 video_unregister_device(&vpbe_display_layer->video_dev); 1489 1490 } 1491 for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { 1492 kfree(disp_dev->dev[i]); 1493 disp_dev->dev[i] = NULL; 1494 } 1495 1496 return 0; 1497} 1498 1499static struct platform_driver vpbe_display_driver = { 1500 .driver = { 1501 .name = VPBE_DISPLAY_DRIVER, 1502 .bus = &platform_bus_type, 1503 }, 1504 .probe = vpbe_display_probe, 1505 .remove = vpbe_display_remove, 1506}; 1507 1508module_platform_driver(vpbe_display_driver); 1509 1510MODULE_DESCRIPTION("TI DM644x/DM355/DM365 VPBE Display controller"); 1511MODULE_LICENSE("GPL"); 1512MODULE_AUTHOR("Texas Instruments"); 1513