projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
[deliverable/linux.git] / drivers / media / video / omap / omap_vout.c
CommitLineData
5c7ab634
VH		 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>
5c7ab634
VH		 38#include <linux/irq.h>
39#include <linux/videodev2.h>
72915e85 40#include <linux/dma-mapping.h>
d1ee8878 41#include <linux/slab.h>
5c7ab634 42
dd880dd4 43#include <media/videobuf-dma-contig.h>
5c7ab634
VH		 44#include <media/v4l2-device.h>
45#include <media/v4l2-ioctl.h>
46
47#include <plat/dma.h>
5c7ab634 48#include <plat/vrfb.h>
a0b38cc4 49#include <video/omapdss.h>
5c7ab634
VH		 50
51#include "omap_voutlib.h"
52#include "omap_voutdef.h"
445e258f 53#include "omap_vout_vrfb.h"
5c7ab634
VH		 54
55MODULE_AUTHOR("Texas Instruments");
56MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
57MODULE_LICENSE("GPL");
58
5c7ab634
VH		 59/* Driver Configuration macros */
60#define VOUT_NAME "omap_vout"
61
62enum omap_vout_channels {
63 OMAP_VIDEO1,
64 OMAP_VIDEO2,
65};
66
5c7ab634
VH		 67static struct videobuf_queue_ops video_vbq_ops;
68/* Variables configurable through module params*/
69static u32 video1_numbuffers = 3;
70static u32 video2_numbuffers = 3;
71static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
72static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
90ab5ee9
RR		 73static bool vid1_static_vrfb_alloc;
74static bool vid2_static_vrfb_alloc;
75static bool debug;
5c7ab634
VH		 76
77/* Module parameters */
78module_param(video1_numbuffers, uint, S_IRUGO);
79MODULE_PARM_DESC(video1_numbuffers,
80 "Number of buffers to be allocated at init time for Video1 device.");
81
82module_param(video2_numbuffers, uint, S_IRUGO);
83MODULE_PARM_DESC(video2_numbuffers,
84 "Number of buffers to be allocated at init time for Video2 device.");
85
86module_param(video1_bufsize, uint, S_IRUGO);
87MODULE_PARM_DESC(video1_bufsize,
88 "Size of the buffer to be allocated for video1 device");
89
90module_param(video2_bufsize, uint, S_IRUGO);
91MODULE_PARM_DESC(video2_bufsize,
92 "Size of the buffer to be allocated for video2 device");
93
94module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
95MODULE_PARM_DESC(vid1_static_vrfb_alloc,
96 "Static allocation of the VRFB buffer for video1 device");
97
98module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
99MODULE_PARM_DESC(vid2_static_vrfb_alloc,
100 "Static allocation of the VRFB buffer for video2 device");
101
102module_param(debug, bool, S_IRUGO);
103MODULE_PARM_DESC(debug, "Debug level (0-1)");
104
105/* list of image formats supported by OMAP2 video pipelines */
0d334f7f 106static const struct v4l2_fmtdesc omap_formats[] = {
5c7ab634
VH		 107 {
108 /* Note: V4L2 defines RGB565 as:
109 *
110 * Byte 0 Byte 1
111 * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
112 *
113 * We interpret RGB565 as:
114 *
115 * Byte 0 Byte 1
116 * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
117 */
118 .description = "RGB565, le",
119 .pixelformat = V4L2_PIX_FMT_RGB565,
120 },
121 {
122 /* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use
123 * this for RGB24 unpack mode, the last 8 bits are ignored
124 * */
125 .description = "RGB32, le",
126 .pixelformat = V4L2_PIX_FMT_RGB32,
127 },
128 {
129 /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use
130 * this for RGB24 packed mode
131 *
132 */
133 .description = "RGB24, le",
134 .pixelformat = V4L2_PIX_FMT_RGB24,
135 },
136 {
137 .description = "YUYV (YUV 4:2:2), packed",
138 .pixelformat = V4L2_PIX_FMT_YUYV,
139 },
140 {
141 .description = "UYVY, packed",
142 .pixelformat = V4L2_PIX_FMT_UYVY,
143 },
144};
145
146#define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
147
5c7ab634
VH		 148/*
149 * Try format
150 */
151static int omap_vout_try_format(struct v4l2_pix_format *pix)
152{
153 int ifmt, bpp = 0;
154
155 pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT,
156 (u32)VID_MAX_HEIGHT);
157 pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH);
158
159 for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
160 if (pix->pixelformat == omap_formats[ifmt].pixelformat)
161 break;
162 }
163
164 if (ifmt == NUM_OUTPUT_FORMATS)
165 ifmt = 0;
166
167 pix->pixelformat = omap_formats[ifmt].pixelformat;
168 pix->field = V4L2_FIELD_ANY;
169 pix->priv = 0;
170
171 switch (pix->pixelformat) {
172 case V4L2_PIX_FMT_YUYV:
173 case V4L2_PIX_FMT_UYVY:
174 default:
175 pix->colorspace = V4L2_COLORSPACE_JPEG;
176 bpp = YUYV_BPP;
177 break;
178 case V4L2_PIX_FMT_RGB565:
179 case V4L2_PIX_FMT_RGB565X:
180 pix->colorspace = V4L2_COLORSPACE_SRGB;
181 bpp = RGB565_BPP;
182 break;
183 case V4L2_PIX_FMT_RGB24:
184 pix->colorspace = V4L2_COLORSPACE_SRGB;
185 bpp = RGB24_BPP;
186 break;
187 case V4L2_PIX_FMT_RGB32:
188 case V4L2_PIX_FMT_BGR32:
189 pix->colorspace = V4L2_COLORSPACE_SRGB;
190 bpp = RGB32_BPP;
191 break;
192 }
193 pix->bytesperline = pix->width * bpp;
194 pix->sizeimage = pix->bytesperline * pix->height;
195
196 return bpp;
197}
198
199/*
200 * omap_vout_uservirt_to_phys: This inline function is used to convert user
201 * space virtual address to physical address.
202 */
203static u32 omap_vout_uservirt_to_phys(u32 virtp)
204{
205 unsigned long physp = 0;
206 struct vm_area_struct *vma;
207 struct mm_struct *mm = current->mm;
208
209 vma = find_vma(mm, virtp);
210 /* For kernel direct-mapped memory, take the easy way */
211 if (virtp >= PAGE_OFFSET) {
212 physp = virt_to_phys((void *) virtp);
213 } else if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) {
214 /* this will catch, kernel-allocated, mmaped-to-usermode
215 addresses */
216 physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start);
217 } else {
218 /* otherwise, use get_user_pages() for general userland pages */
219 int res, nr_pages = 1;
220 struct page *pages;
221 down_read(&current->mm->mmap_sem);
222
223 res = get_user_pages(current, current->mm, virtp, nr_pages, 1,
224 0, &pages, NULL);
225 up_read(&current->mm->mmap_sem);
226
227 if (res == nr_pages) {
228 physp = __pa(page_address(&pages[0]) +
229 (virtp & ~PAGE_MASK));
230 } else {
231 printk(KERN_WARNING VOUT_NAME
232 "get_user_pages failed\n");
233 return 0;
234 }
235 }
236
237 return physp;
238}
239
5c7ab634
VH		 240/*
241 * Free the V4L2 buffers
242 */
445e258f 243void omap_vout_free_buffers(struct omap_vout_device *vout)
5c7ab634
VH		 244{
245 int i, numbuffers;
246
247 /* Allocate memory for the buffers */
248 numbuffers = (vout->vid) ? video2_numbuffers : video1_numbuffers;
249 vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize;
250
251 for (i = 0; i < numbuffers; i++) {
252 omap_vout_free_buffer(vout->buf_virt_addr[i],
253 vout->buffer_size);
254 vout->buf_phy_addr[i] = 0;
255 vout->buf_virt_addr[i] = 0;
256 }
257}
258
5c7ab634
VH		 259/*
260 * Convert V4L2 rotation to DSS rotation
261 * V4L2 understand 0, 90, 180, 270.
25985edc 262 * Convert to 0, 1, 2 and 3 respectively for DSS
5c7ab634
VH		 263 */
264static int v4l2_rot_to_dss_rot(int v4l2_rotation,
265 enum dss_rotation *rotation, bool mirror)
266{
267 int ret = 0;
268
269 switch (v4l2_rotation) {
270 case 90:
271 *rotation = dss_rotation_90_degree;
272 break;
273 case 180:
274 *rotation = dss_rotation_180_degree;
275 break;
276 case 270:
277 *rotation = dss_rotation_270_degree;
278 break;
279 case 0:
280 *rotation = dss_rotation_0_degree;
281 break;
282 default:
283 ret = -EINVAL;
284 }
285 return ret;
286}
287
5c7ab634
VH		 288static int omap_vout_calculate_offset(struct omap_vout_device *vout)
289{
5c7ab634 290 struct omapvideo_info *ovid;
5c7ab634
VH		 291 struct v4l2_rect *crop = &vout->crop;
292 struct v4l2_pix_format *pix = &vout->pix;
293 int *cropped_offset = &vout->cropped_offset;
445e258f 294 int ps = 2, line_length = 0;
5c7ab634
VH		 295
296 ovid = &vout->vid_info;
5c7ab634 297
445e258f 298 if (ovid->rotation_type == VOUT_ROT_VRFB) {
299 omap_vout_calculate_vrfb_offset(vout);
300 } else {
301 vout->line_length = line_length = pix->width;
5c7ab634 302
445e258f 303 if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
304 V4L2_PIX_FMT_UYVY == pix->pixelformat)
305 ps = 2;
306 else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
5c7ab634 307 ps = 4;
445e258f 308 else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
309 ps = 3;
5c7ab634 310
445e258f 311 vout->ps = ps;
312
313 *cropped_offset = (line_length * ps) *
314 crop->top + crop->left * ps;
5c7ab634 315 }
445e258f 316
5c7ab634 317 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
445e258f 318 __func__, vout->cropped_offset);
319
5c7ab634
VH		 320 return 0;
321}
322
323/*
324 * Convert V4L2 pixel format to DSS pixel format
325 */
72fcf2a8 326static int video_mode_to_dss_mode(struct omap_vout_device *vout)
5c7ab634
VH		 327{
328 struct omap_overlay *ovl;
329 struct omapvideo_info *ovid;
330 struct v4l2_pix_format *pix = &vout->pix;
331 enum omap_color_mode mode;
332
333 ovid = &vout->vid_info;
334 ovl = ovid->overlays[0];
335
336 switch (pix->pixelformat) {
337 case 0:
338 break;
339 case V4L2_PIX_FMT_YUYV:
340 mode = OMAP_DSS_COLOR_YUV2;
341 break;
342 case V4L2_PIX_FMT_UYVY:
343 mode = OMAP_DSS_COLOR_UYVY;
344 break;
345 case V4L2_PIX_FMT_RGB565:
346 mode = OMAP_DSS_COLOR_RGB16;
347 break;
348 case V4L2_PIX_FMT_RGB24:
349 mode = OMAP_DSS_COLOR_RGB24P;
350 break;
351 case V4L2_PIX_FMT_RGB32:
352 mode = (ovl->id == OMAP_DSS_VIDEO1) ?
353 OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
354 break;
355 case V4L2_PIX_FMT_BGR32:
356 mode = OMAP_DSS_COLOR_RGBX32;
357 break;
358 default:
359 mode = -EINVAL;
360 }
361 return mode;
362}
363
364/*
365 * Setup the overlay
366 */
a137ac87 367static int omapvid_setup_overlay(struct omap_vout_device *vout,
5c7ab634
VH		 368 struct omap_overlay *ovl, int posx, int posy, int outw,
369 int outh, u32 addr)
370{
371 int ret = 0;
372 struct omap_overlay_info info;
373 int cropheight, cropwidth, pixheight, pixwidth;
374
375 if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
376 (outw != vout->pix.width || outh != vout->pix.height)) {
377 ret = -EINVAL;
378 goto setup_ovl_err;
379 }
380
381 vout->dss_mode = video_mode_to_dss_mode(vout);
382 if (vout->dss_mode == -EINVAL) {
383 ret = -EINVAL;
384 goto setup_ovl_err;
385 }
386
387 /* Setup the input plane parameters according to
388 * rotation value selected.
389 */
b366888a 390 if (is_rotation_90_or_270(vout)) {
5c7ab634
VH		 391 cropheight = vout->crop.width;
392 cropwidth = vout->crop.height;
393 pixheight = vout->pix.width;
394 pixwidth = vout->pix.height;
395 } else {
396 cropheight = vout->crop.height;
397 cropwidth = vout->crop.width;
398 pixheight = vout->pix.height;
399 pixwidth = vout->pix.width;
400 }
401
402 ovl->get_overlay_info(ovl, &info);
403 info.paddr = addr;
5c7ab634
VH		 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;
b366888a 413 if (!is_rotation_enabled(vout)) {
5c7ab634
VH		 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",
aaa874a9 427 __func__, ovl->is_enabled(ovl), info.paddr, info.width, info.height,
5c7ab634
VH		 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
438setup_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 */
a137ac87 446static int omapvid_init(struct omap_vout_device *vout, u32 addr)
5c7ab634
VH		 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
503omapvid_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 */
a137ac87 511static int omapvid_apply_changes(struct omap_vout_device *vout)
5c7ab634
VH		 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
27801688
AT		 527static int omapvid_handle_interlace_display(struct omap_vout_device *vout,
528 unsigned int irqstatus, struct timeval timevalue)
529{
530 u32 fid;
531
532 if (vout->first_int) {
533 vout->first_int = 0;
534 goto err;
535 }
536
537 if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
538 fid = 1;
539 else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
540 fid = 0;
541 else
542 goto err;
543
544 vout->field_id ^= 1;
545 if (fid != vout->field_id) {
546 if (fid == 0)
547 vout->field_id = fid;
548 } else if (0 == fid) {
549 if (vout->cur_frm == vout->next_frm)
550 goto err;
551
552 vout->cur_frm->ts = timevalue;
553 vout->cur_frm->state = VIDEOBUF_DONE;
554 wake_up_interruptible(&vout->cur_frm->done);
555 vout->cur_frm = vout->next_frm;
556 } else {
557 if (list_empty(&vout->dma_queue) ||
558 (vout->cur_frm != vout->next_frm))
559 goto err;
560 }
561
562 return vout->field_id;
563err:
564 return 0;
565}
566
a137ac87 567static void omap_vout_isr(void *arg, unsigned int irqstatus)
5c7ab634 568{
e144ca64
AT		 569 int ret, fid, mgr_id;
570 u32 addr, irq;
5c7ab634
VH		 571 struct omap_overlay *ovl;
572 struct timeval timevalue;
573 struct omapvideo_info *ovid;
574 struct omap_dss_device *cur_display;
575 struct omap_vout_device *vout = (struct omap_vout_device *)arg;
576
577 if (!vout->streaming)
578 return;
579
580 ovid = &vout->vid_info;
581 ovl = ovid->overlays[0];
582 /* get the display device attached to the overlay */
583 if (!ovl->manager || !ovl->manager->device)
584 return;
585
e144ca64 586 mgr_id = ovl->manager->id;
5c7ab634
VH		 587 cur_display = ovl->manager->device;
588
589 spin_lock(&vout->vbq_lock);
590 do_gettimeofday(&timevalue);
5c7ab634 591
27801688 592 switch (cur_display->type) {
881a9640 593 case OMAP_DISPLAY_TYPE_DSI:
27801688 594 case OMAP_DISPLAY_TYPE_DPI:
e144ca64
AT		 595 if (mgr_id == OMAP_DSS_CHANNEL_LCD)
596 irq = DISPC_IRQ_VSYNC;
597 else if (mgr_id == OMAP_DSS_CHANNEL_LCD2)
598 irq = DISPC_IRQ_VSYNC2;
599 else
5c7ab634
VH		 600 goto vout_isr_err;
601
e144ca64 602 if (!(irqstatus & irq))
5251dd6c 603 goto vout_isr_err;
27801688
AT		 604 break;
605 case OMAP_DISPLAY_TYPE_VENC:
606 fid = omapvid_handle_interlace_display(vout, irqstatus,
607 timevalue);
608 if (!fid)
5c7ab634 609 goto vout_isr_err;
27801688
AT		 610 break;
611 case OMAP_DISPLAY_TYPE_HDMI:
612 if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
613 goto vout_isr_err;
614 break;
615 default:
616 goto vout_isr_err;
617 }
5c7ab634 618
27801688
AT		 619 if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
620 vout->cur_frm->ts = timevalue;
621 vout->cur_frm->state = VIDEOBUF_DONE;
622 wake_up_interruptible(&vout->cur_frm->done);
623 vout->cur_frm = vout->next_frm;
624 }
5c7ab634 625
27801688
AT		 626 vout->first_int = 0;
627 if (list_empty(&vout->dma_queue))
628 goto vout_isr_err;
5c7ab634 629
27801688
AT		 630 vout->next_frm = list_entry(vout->dma_queue.next,
631 struct videobuf_buffer, queue);
632 list_del(&vout->next_frm->queue);
5c7ab634 633
27801688 634 vout->next_frm->state = VIDEOBUF_ACTIVE;
5c7ab634 635
27801688
AT		 636 addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
637 + vout->cropped_offset;
5c7ab634 638
27801688
AT		 639 /* First save the configuration in ovelray structure */
640 ret = omapvid_init(vout, addr);
641 if (ret)
642 printk(KERN_ERR VOUT_NAME
643 "failed to set overlay info\n");
644 /* Enable the pipeline and set the Go bit */
645 ret = omapvid_apply_changes(vout);
646 if (ret)
647 printk(KERN_ERR VOUT_NAME "failed to change mode\n");
5c7ab634
VH		 648
649vout_isr_err:
650 spin_unlock(&vout->vbq_lock);
651}
652
5c7ab634
VH		 653/* Video buffer call backs */
654
655/*
656 * Buffer setup function is called by videobuf layer when REQBUF ioctl is
657 * called. This is used to setup buffers and return size and count of
658 * buffers allocated. After the call to this buffer, videobuf layer will
659 * setup buffer queue depending on the size and count of buffers
660 */
661static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
662 unsigned int *size)
663{
664 int startindex = 0, i, j;
665 u32 phy_addr = 0, virt_addr = 0;
666 struct omap_vout_device *vout = q->priv_data;
445e258f 667 struct omapvideo_info *ovid = &vout->vid_info;
d06db7ec 668 int vid_max_buf_size;
5c7ab634
VH		 669
670 if (!vout)
671 return -EINVAL;
672
d06db7ec
AT		 673 vid_max_buf_size = vout->vid == OMAP_VIDEO1 ? video1_bufsize :
674 video2_bufsize;
675
5c7ab634
VH		 676 if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
677 return -EINVAL;
678
679 startindex = (vout->vid == OMAP_VIDEO1) ?
680 video1_numbuffers : video2_numbuffers;
681 if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
682 *count = startindex;
683
445e258f 684 if (ovid->rotation_type == VOUT_ROT_VRFB) {
5c7ab634
VH		 685 if (omap_vout_vrfb_buffer_setup(vout, count, startindex))
686 return -ENOMEM;
445e258f 687 }
5c7ab634
VH		 688
689 if (V4L2_MEMORY_MMAP != vout->memory)
690 return 0;
691
692 /* Now allocated the V4L2 buffers */
693 *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp);
694 startindex = (vout->vid == OMAP_VIDEO1) ?
695 video1_numbuffers : video2_numbuffers;
696
383e4f69 697 /* Check the size of the buffer */
d06db7ec 698 if (*size > vid_max_buf_size) {
383e4f69
VH		 699 v4l2_err(&vout->vid_dev->v4l2_dev,
700 "buffer allocation mismatch [%u] [%u]\n",
701 *size, vout->buffer_size);
702 return -ENOMEM;
703 }
704
5c7ab634
VH		 705 for (i = startindex; i < *count; i++) {
706 vout->buffer_size = *size;
707
708 virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
709 &phy_addr);
710 if (!virt_addr) {
445e258f 711 if (ovid->rotation_type == VOUT_ROT_NONE) {
5c7ab634 712 break;
445e258f 713 } else {
714 if (!is_rotation_enabled(vout))
715 break;
5c7ab634
VH		 716 /* Free the VRFB buffers if no space for V4L2 buffers */
717 for (j = i; j < *count; j++) {
718 omap_vout_free_buffer(
719 vout->smsshado_virt_addr[j],
720 vout->smsshado_size);
721 vout->smsshado_virt_addr[j] = 0;
722 vout->smsshado_phy_addr[j] = 0;
445e258f 723 }
5c7ab634
VH		 724 }
725 }
726 vout->buf_virt_addr[i] = virt_addr;
727 vout->buf_phy_addr[i] = phy_addr;
728 }
729 *count = vout->buffer_allocated = i;
730
731 return 0;
732}
733
734/*
735 * Free the V4L2 buffers additionally allocated than default
445e258f 736 * number of buffers
5c7ab634 737 */
445e258f 738static void omap_vout_free_extra_buffers(struct omap_vout_device *vout)
5c7ab634
VH		 739{
740 int num_buffers = 0, i;
741
742 num_buffers = (vout->vid == OMAP_VIDEO1) ?
743 video1_numbuffers : video2_numbuffers;
744
745 for (i = num_buffers; i < vout->buffer_allocated; i++) {
746 if (vout->buf_virt_addr[i])
747 omap_vout_free_buffer(vout->buf_virt_addr[i],
748 vout->buffer_size);
749
750 vout->buf_virt_addr[i] = 0;
751 vout->buf_phy_addr[i] = 0;
752 }
5c7ab634
VH		 753 vout->buffer_allocated = num_buffers;
754}
755
756/*
757 * This function will be called when VIDIOC_QBUF ioctl is called.
758 * It prepare buffers before give out for the display. This function
759 * converts user space virtual address into physical address if userptr memory
760 * exchange mechanism is used. If rotation is enabled, it copies entire
761 * buffer into VRFB memory space before giving it to the DSS.
762 */
763static int omap_vout_buffer_prepare(struct videobuf_queue *q,
445e258f 764 struct videobuf_buffer *vb,
765 enum v4l2_field field)
5c7ab634 766{
5c7ab634 767 struct omap_vout_device *vout = q->priv_data;
445e258f 768 struct omapvideo_info *ovid = &vout->vid_info;
5c7ab634
VH		 769
770 if (VIDEOBUF_NEEDS_INIT == vb->state) {
771 vb->width = vout->pix.width;
772 vb->height = vout->pix.height;
773 vb->size = vb->width * vb->height * vout->bpp;
774 vb->field = field;
775 }
776 vb->state = VIDEOBUF_PREPARED;
777 /* if user pointer memory mechanism is used, get the physical
778 * address of the buffer
779 */
780 if (V4L2_MEMORY_USERPTR == vb->memory) {
781 if (0 == vb->baddr)
782 return -EINVAL;
5c7ab634 783 /* Physical address */
dd880dd4
VH		 784 vout->queued_buf_addr[vb->i] = (u8 *)
785 omap_vout_uservirt_to_phys(vb->baddr);
786 } else {
72915e85
AJ		 787 u32 addr, dma_addr;
788 unsigned long size;
789
790 addr = (unsigned long) vout->buf_virt_addr[vb->i];
791 size = (unsigned long) vb->size;
792
793 dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr,
794 size, DMA_TO_DEVICE);
795 if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr))
796 v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n");
797
dd880dd4 798 vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i];
5c7ab634
VH		 799 }
800
445e258f 801 if (ovid->rotation_type == VOUT_ROT_VRFB)
802 return omap_vout_prepare_vrfb(vout, vb);
803 else
5c7ab634 804 return 0;
5c7ab634
VH		 805}
806
807/*
25985edc 808 * Buffer queue function will be called from the videobuf layer when _QBUF
5c7ab634
VH		 809 * ioctl is called. It is used to enqueue buffer, which is ready to be
810 * displayed.
811 */
812static void omap_vout_buffer_queue(struct videobuf_queue *q,
813 struct videobuf_buffer *vb)
814{
815 struct omap_vout_device *vout = q->priv_data;
816
817 /* Driver is also maintainig a queue. So enqueue buffer in the driver
818 * queue */
819 list_add_tail(&vb->queue, &vout->dma_queue);
820
821 vb->state = VIDEOBUF_QUEUED;
822}
823
824/*
825 * Buffer release function is called from videobuf layer to release buffer
826 * which are already allocated
827 */
828static void omap_vout_buffer_release(struct videobuf_queue *q,
829 struct videobuf_buffer *vb)
830{
831 struct omap_vout_device *vout = q->priv_data;
832
833 vb->state = VIDEOBUF_NEEDS_INIT;
834
835 if (V4L2_MEMORY_MMAP != vout->memory)
836 return;
837}
838
839/*
840 * File operations
841 */
94f3f48f
LP		 842static unsigned int omap_vout_poll(struct file *file,
843 struct poll_table_struct *wait)
844{
845 struct omap_vout_device *vout = file->private_data;
846 struct videobuf_queue *q = &vout->vbq;
847
848 return videobuf_poll_stream(file, q, wait);
849}
850
5c7ab634
VH		 851static void omap_vout_vm_open(struct vm_area_struct *vma)
852{
853 struct omap_vout_device *vout = vma->vm_private_data;
854
855 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
856 "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
857 vout->mmap_count++;
858}
859
860static void omap_vout_vm_close(struct vm_area_struct *vma)
861{
862 struct omap_vout_device *vout = vma->vm_private_data;
863
864 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
865 "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
866 vout->mmap_count--;
867}
868
869static struct vm_operations_struct omap_vout_vm_ops = {
870 .open = omap_vout_vm_open,
871 .close = omap_vout_vm_close,
872};
873
874static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
875{
876 int i;
877 void *pos;
878 unsigned long start = vma->vm_start;
879 unsigned long size = (vma->vm_end - vma->vm_start);
5c7ab634
VH		 880 struct omap_vout_device *vout = file->private_data;
881 struct videobuf_queue *q = &vout->vbq;
882
883 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
884 " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__,
885 vma->vm_pgoff, vma->vm_start, vma->vm_end);
886
887 /* look for the buffer to map */
888 for (i = 0; i < VIDEO_MAX_FRAME; i++) {
889 if (NULL == q->bufs[i])
890 continue;
891 if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
892 continue;
893 if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
894 break;
895 }
896
897 if (VIDEO_MAX_FRAME == i) {
898 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
899 "offset invalid [offset=0x%lx]\n",
900 (vma->vm_pgoff << PAGE_SHIFT));
901 return -EINVAL;
902 }
383e4f69
VH		 903 /* Check the size of the buffer */
904 if (size > vout->buffer_size) {
905 v4l2_err(&vout->vid_dev->v4l2_dev,
906 "insufficient memory [%lu] [%u]\n",
907 size, vout->buffer_size);
908 return -ENOMEM;
909 }
910
5c7ab634
VH		 911 q->bufs[i]->baddr = vma->vm_start;
912
913 vma->vm_flags |= VM_RESERVED;
914 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
915 vma->vm_ops = &omap_vout_vm_ops;
916 vma->vm_private_data = (void *) vout;
dd880dd4 917 pos = (void *)vout->buf_virt_addr[i];
5c7ab634
VH		 918 vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT;
919 while (size > 0) {
920 unsigned long pfn;
921 pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
922 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
923 return -EAGAIN;
924 start += PAGE_SIZE;
925 pos += PAGE_SIZE;
926 size -= PAGE_SIZE;
927 }
928 vout->mmap_count++;
929 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
930
931 return 0;
932}
933
934static int omap_vout_release(struct file *file)
935{
936 unsigned int ret, i;
937 struct videobuf_queue *q;
938 struct omapvideo_info *ovid;
939 struct omap_vout_device *vout = file->private_data;
940
941 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
942 ovid = &vout->vid_info;
943
944 if (!vout)
945 return 0;
946
947 q = &vout->vbq;
948 /* Disable all the overlay managers connected with this interface */
949 for (i = 0; i < ovid->num_overlays; i++) {
950 struct omap_overlay *ovl = ovid->overlays[i];
aaa874a9
TV		 951 if (ovl->manager && ovl->manager->device)
952 ovl->disable(ovl);
5c7ab634
VH		 953 }
954 /* Turn off the pipeline */
955 ret = omapvid_apply_changes(vout);
956 if (ret)
957 v4l2_warn(&vout->vid_dev->v4l2_dev,
958 "Unable to apply changes\n");
959
960 /* Free all buffers */
445e258f 961 omap_vout_free_extra_buffers(vout);
962
963 /* Free the VRFB buffers only if they are allocated
964 * during reqbufs. Don't free if init time allocated
965 */
966 if (ovid->rotation_type == VOUT_ROT_VRFB) {
967 if (!vout->vrfb_static_allocation)
968 omap_vout_free_vrfb_buffers(vout);
969 }
5c7ab634
VH		 970 videobuf_mmap_free(q);
971
972 /* Even if apply changes fails we should continue
b595076a 973 freeing allocated memory */
5c7ab634
VH		 974 if (vout->streaming) {
975 u32 mask = 0;
976
977 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN |
5251dd6c 978 DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2;
5c7ab634
VH		 979 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
980 vout->streaming = 0;
981
982 videobuf_streamoff(q);
983 videobuf_queue_cancel(q);
984 }
985
986 if (vout->mmap_count != 0)
987 vout->mmap_count = 0;
988
989 vout->opened -= 1;
990 file->private_data = NULL;
991
992 if (vout->buffer_allocated)
993 videobuf_mmap_free(q);
994
995 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
996 return ret;
997}
998
999static int omap_vout_open(struct file *file)
1000{
1001 struct videobuf_queue *q;
1002 struct omap_vout_device *vout = NULL;
1003
1004 vout = video_drvdata(file);
1005 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
1006
1007 if (vout == NULL)
1008 return -ENODEV;
1009
1010 /* for now, we only support single open */
1011 if (vout->opened)
1012 return -EBUSY;
1013
1014 vout->opened += 1;
1015
1016 file->private_data = vout;
1017 vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1018
1019 q = &vout->vbq;
1020 video_vbq_ops.buf_setup = omap_vout_buffer_setup;
1021 video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
1022 video_vbq_ops.buf_release = omap_vout_buffer_release;
1023 video_vbq_ops.buf_queue = omap_vout_buffer_queue;
1024 spin_lock_init(&vout->vbq_lock);
1025
dd880dd4
VH		 1026 videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
1027 &vout->vbq_lock, vout->type, V4L2_FIELD_NONE,
e3cfd447 1028 sizeof(struct videobuf_buffer), vout, NULL);
5c7ab634
VH		 1029
1030 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1031 return 0;
1032}
1033
1034/*
1035 * V4L2 ioctls
1036 */
1037static int vidioc_querycap(struct file *file, void *fh,
1038 struct v4l2_capability *cap)
1039{
1040 struct omap_vout_device *vout = fh;
1041
1042 strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
1043 strlcpy(cap->card, vout->vfd->name, sizeof(cap->card));
1044 cap->bus_info[0] = '\0';
1045 cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT;
1046
1047 return 0;
1048}
1049
1050static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
1051 struct v4l2_fmtdesc *fmt)
1052{
1053 int index = fmt->index;
5c7ab634 1054
5c7ab634
VH		 1055 if (index >= NUM_OUTPUT_FORMATS)
1056 return -EINVAL;
1057
1058 fmt->flags = omap_formats[index].flags;
1059 strlcpy(fmt->description, omap_formats[index].description,
1060 sizeof(fmt->description));
1061 fmt->pixelformat = omap_formats[index].pixelformat;
1062
1063 return 0;
1064}
1065
1066static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
1067 struct v4l2_format *f)
1068{
1069 struct omap_vout_device *vout = fh;
1070
1071 f->fmt.pix = vout->pix;
1072 return 0;
1073
1074}
1075
1076static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
1077 struct v4l2_format *f)
1078{
1079 struct omap_overlay *ovl;
1080 struct omapvideo_info *ovid;
1081 struct omap_video_timings *timing;
1082 struct omap_vout_device *vout = fh;
1083
1084 ovid = &vout->vid_info;
1085 ovl = ovid->overlays[0];
1086
1087 if (!ovl->manager || !ovl->manager->device)
1088 return -EINVAL;
1089 /* get the display device attached to the overlay */
1090 timing = &ovl->manager->device->panel.timings;
1091
1092 vout->fbuf.fmt.height = timing->y_res;
1093 vout->fbuf.fmt.width = timing->x_res;
1094
1095 omap_vout_try_format(&f->fmt.pix);
1096 return 0;
1097}
1098
1099static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
1100 struct v4l2_format *f)
1101{
1102 int ret, bpp;
1103 struct omap_overlay *ovl;
1104 struct omapvideo_info *ovid;
1105 struct omap_video_timings *timing;
1106 struct omap_vout_device *vout = fh;
1107
1108 if (vout->streaming)
1109 return -EBUSY;
1110
1111 mutex_lock(&vout->lock);
1112
1113 ovid = &vout->vid_info;
1114 ovl = ovid->overlays[0];
1115
1116 /* get the display device attached to the overlay */
1117 if (!ovl->manager || !ovl->manager->device) {
1118 ret = -EINVAL;
1119 goto s_fmt_vid_out_exit;
1120 }
1121 timing = &ovl->manager->device->panel.timings;
1122
1123 /* We dont support RGB24-packed mode if vrfb rotation
1124 * is enabled*/
b366888a 1125 if ((is_rotation_enabled(vout)) &&
5c7ab634
VH		 1126 f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1127 ret = -EINVAL;
1128 goto s_fmt_vid_out_exit;
1129 }
1130
1131 /* get the framebuffer parameters */
1132
b366888a 1133 if (is_rotation_90_or_270(vout)) {
5c7ab634
VH		 1134 vout->fbuf.fmt.height = timing->x_res;
1135 vout->fbuf.fmt.width = timing->y_res;
1136 } else {
1137 vout->fbuf.fmt.height = timing->y_res;
1138 vout->fbuf.fmt.width = timing->x_res;
1139 }
1140
1141 /* change to samller size is OK */
1142
1143 bpp = omap_vout_try_format(&f->fmt.pix);
1144 f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
1145
1146 /* try & set the new output format */
1147 vout->bpp = bpp;
1148 vout->pix = f->fmt.pix;
1149 vout->vrfb_bpp = 1;
1150
1151 /* If YUYV then vrfb bpp is 2, for others its 1 */
1152 if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
1153 V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
1154 vout->vrfb_bpp = 2;
1155
1156 /* set default crop and win */
1157 omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
1158
1159 /* Save the changes in the overlay strcuture */
1160 ret = omapvid_init(vout, 0);
1161 if (ret) {
1162 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1163 goto s_fmt_vid_out_exit;
1164 }
1165
1166 ret = 0;
1167
1168s_fmt_vid_out_exit:
1169 mutex_unlock(&vout->lock);
1170 return ret;
1171}
1172
1173static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
1174 struct v4l2_format *f)
1175{
1176 int ret = 0;
1177 struct omap_vout_device *vout = fh;
11354dd5
AT		 1178 struct omap_overlay *ovl;
1179 struct omapvideo_info *ovid;
5c7ab634
VH		 1180 struct v4l2_window *win = &f->fmt.win;
1181
11354dd5
AT		 1182 ovid = &vout->vid_info;
1183 ovl = ovid->overlays[0];
1184
5c7ab634
VH		 1185 ret = omap_vout_try_window(&vout->fbuf, win);
1186
1187 if (!ret) {
11354dd5 1188 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
5c7ab634
VH		 1189 win->global_alpha = 255;
1190 else
1191 win->global_alpha = f->fmt.win.global_alpha;
1192 }
1193
1194 return ret;
1195}
1196
1197static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
1198 struct v4l2_format *f)
1199{
1200 int ret = 0;
1201 struct omap_overlay *ovl;
1202 struct omapvideo_info *ovid;
1203 struct omap_vout_device *vout = fh;
1204 struct v4l2_window *win = &f->fmt.win;
1205
1206 mutex_lock(&vout->lock);
1207 ovid = &vout->vid_info;
1208 ovl = ovid->overlays[0];
1209
1210 ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
1211 if (!ret) {
11354dd5
AT		 1212 /* Video1 plane does not support global alpha on OMAP3 */
1213 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
5c7ab634
VH		 1214 vout->win.global_alpha = 255;
1215 else
1216 vout->win.global_alpha = f->fmt.win.global_alpha;
1217
1218 vout->win.chromakey = f->fmt.win.chromakey;
1219 }
1220 mutex_unlock(&vout->lock);
1221 return ret;
1222}
1223
1224static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh,
1225 struct v4l2_fmtdesc *fmt)
1226{
1227 int index = fmt->index;
5c7ab634 1228
5c7ab634
VH		 1229 if (index >= NUM_OUTPUT_FORMATS)
1230 return -EINVAL;
1231
1232 fmt->flags = omap_formats[index].flags;
1233 strlcpy(fmt->description, omap_formats[index].description,
1234 sizeof(fmt->description));
1235 fmt->pixelformat = omap_formats[index].pixelformat;
1236 return 0;
1237}
1238
1239static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
1240 struct v4l2_format *f)
1241{
1242 u32 key_value = 0;
1243 struct omap_overlay *ovl;
1244 struct omapvideo_info *ovid;
1245 struct omap_vout_device *vout = fh;
1246 struct omap_overlay_manager_info info;
1247 struct v4l2_window *win = &f->fmt.win;
1248
1249 ovid = &vout->vid_info;
1250 ovl = ovid->overlays[0];
1251
1252 win->w = vout->win.w;
1253 win->field = vout->win.field;
1254 win->global_alpha = vout->win.global_alpha;
1255
1256 if (ovl->manager && ovl->manager->get_manager_info) {
1257 ovl->manager->get_manager_info(ovl->manager, &info);
1258 key_value = info.trans_key;
1259 }
1260 win->chromakey = key_value;
1261 return 0;
1262}
1263
1264static int vidioc_cropcap(struct file *file, void *fh,
1265 struct v4l2_cropcap *cropcap)
1266{
1267 struct omap_vout_device *vout = fh;
1268 struct v4l2_pix_format *pix = &vout->pix;
1269
1270 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1271 return -EINVAL;
1272
1273 /* Width and height are always even */
1274 cropcap->bounds.width = pix->width & ~1;
1275 cropcap->bounds.height = pix->height & ~1;
1276
1277 omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect);
1278 cropcap->pixelaspect.numerator = 1;
1279 cropcap->pixelaspect.denominator = 1;
1280 return 0;
1281}
1282
1283static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1284{
1285 struct omap_vout_device *vout = fh;
1286
1287 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1288 return -EINVAL;
1289 crop->c = vout->crop;
1290 return 0;
1291}
1292
1293static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1294{
1295 int ret = -EINVAL;
1296 struct omap_vout_device *vout = fh;
1297 struct omapvideo_info *ovid;
1298 struct omap_overlay *ovl;
1299 struct omap_video_timings *timing;
1300
1301 if (vout->streaming)
1302 return -EBUSY;
1303
1304 mutex_lock(&vout->lock);
1305 ovid = &vout->vid_info;
1306 ovl = ovid->overlays[0];
1307
1308 if (!ovl->manager || !ovl->manager->device) {
1309 ret = -EINVAL;
1310 goto s_crop_err;
1311 }
1312 /* get the display device attached to the overlay */
1313 timing = &ovl->manager->device->panel.timings;
1314
b366888a 1315 if (is_rotation_90_or_270(vout)) {
5c7ab634
VH		 1316 vout->fbuf.fmt.height = timing->x_res;
1317 vout->fbuf.fmt.width = timing->y_res;
1318 } else {
1319 vout->fbuf.fmt.height = timing->y_res;
1320 vout->fbuf.fmt.width = timing->x_res;
1321 }
1322
1323 if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1324 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
1325 &vout->fbuf, &crop->c);
1326
1327s_crop_err:
1328 mutex_unlock(&vout->lock);
1329 return ret;
1330}
1331
1332static int vidioc_queryctrl(struct file *file, void *fh,
1333 struct v4l2_queryctrl *ctrl)
1334{
1335 int ret = 0;
1336
1337 switch (ctrl->id) {
1338 case V4L2_CID_ROTATE:
1339 ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0);
1340 break;
1341 case V4L2_CID_BG_COLOR:
1342 ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0);
1343 break;
1344 case V4L2_CID_VFLIP:
1345 ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
1346 break;
1347 default:
1348 ctrl->name[0] = '\0';
1349 ret = -EINVAL;
1350 }
1351 return ret;
1352}
1353
1354static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
1355{
1356 int ret = 0;
1357 struct omap_vout_device *vout = fh;
1358
1359 switch (ctrl->id) {
1360 case V4L2_CID_ROTATE:
1361 ctrl->value = vout->control[0].value;
1362 break;
1363 case V4L2_CID_BG_COLOR:
1364 {
1365 struct omap_overlay_manager_info info;
1366 struct omap_overlay *ovl;
1367
1368 ovl = vout->vid_info.overlays[0];
1369 if (!ovl->manager || !ovl->manager->get_manager_info) {
1370 ret = -EINVAL;
1371 break;
1372 }
1373
1374 ovl->manager->get_manager_info(ovl->manager, &info);
1375 ctrl->value = info.default_color;
1376 break;
1377 }
1378 case V4L2_CID_VFLIP:
1379 ctrl->value = vout->control[2].value;
1380 break;
1381 default:
1382 ret = -EINVAL;
1383 }
1384 return ret;
1385}
1386
1387static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
1388{
1389 int ret = 0;
1390 struct omap_vout_device *vout = fh;
1391
1392 switch (a->id) {
1393 case V4L2_CID_ROTATE:
1394 {
445e258f 1395 struct omapvideo_info *ovid;
5c7ab634
VH		 1396 int rotation = a->value;
1397
445e258f 1398 ovid = &vout->vid_info;
1399
5c7ab634 1400 mutex_lock(&vout->lock);
445e258f 1401 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
1402 mutex_unlock(&vout->lock);
1403 ret = -ERANGE;
1404 break;
1405 }
5c7ab634
VH		 1406
1407 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1408 mutex_unlock(&vout->lock);
1409 ret = -EINVAL;
1410 break;
1411 }
1412
1413 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
1414 vout->mirror)) {
1415 mutex_unlock(&vout->lock);
1416 ret = -EINVAL;
1417 break;
1418 }
1419
1420 vout->control[0].value = rotation;
1421 mutex_unlock(&vout->lock);
1422 break;
1423 }
1424 case V4L2_CID_BG_COLOR:
1425 {
1426 struct omap_overlay *ovl;
1427 unsigned int color = a->value;
1428 struct omap_overlay_manager_info info;
1429
1430 ovl = vout->vid_info.overlays[0];
1431
1432 mutex_lock(&vout->lock);
1433 if (!ovl->manager || !ovl->manager->get_manager_info) {
1434 mutex_unlock(&vout->lock);
1435 ret = -EINVAL;
1436 break;
1437 }
1438
1439 ovl->manager->get_manager_info(ovl->manager, &info);
1440 info.default_color = color;
1441 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
1442 mutex_unlock(&vout->lock);
1443 ret = -EINVAL;
1444 break;
1445 }
1446
1447 vout->control[1].value = color;
1448 mutex_unlock(&vout->lock);
1449 break;
1450 }
1451 case V4L2_CID_VFLIP:
1452 {
1453 struct omap_overlay *ovl;
1454 struct omapvideo_info *ovid;
1455 unsigned int mirror = a->value;
1456
1457 ovid = &vout->vid_info;
1458 ovl = ovid->overlays[0];
1459
1460 mutex_lock(&vout->lock);
445e258f 1461 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
1462 mutex_unlock(&vout->lock);
1463 ret = -ERANGE;
1464 break;
1465 }
5c7ab634
VH		 1466
1467 if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1468 mutex_unlock(&vout->lock);
1469 ret = -EINVAL;
1470 break;
1471 }
1472 vout->mirror = mirror;
1473 vout->control[2].value = mirror;
1474 mutex_unlock(&vout->lock);
1475 break;
1476 }
1477 default:
1478 ret = -EINVAL;
1479 }
1480 return ret;
1481}
1482
1483static int vidioc_reqbufs(struct file *file, void *fh,
1484 struct v4l2_requestbuffers *req)
1485{
1486 int ret = 0;
1487 unsigned int i, num_buffers = 0;
1488 struct omap_vout_device *vout = fh;
1489 struct videobuf_queue *q = &vout->vbq;
5c7ab634
VH		 1490
1491 if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0))
1492 return -EINVAL;
1493 /* if memory is not mmp or userptr
1494 return error */
1495 if ((V4L2_MEMORY_MMAP != req->memory) &&
1496 (V4L2_MEMORY_USERPTR != req->memory))
1497 return -EINVAL;
1498
1499 mutex_lock(&vout->lock);
1500 /* Cannot be requested when streaming is on */
1501 if (vout->streaming) {
1502 ret = -EBUSY;
1503 goto reqbuf_err;
1504 }
1505
1506 /* If buffers are already allocated free them */
1507 if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
1508 if (vout->mmap_count) {
1509 ret = -EBUSY;
1510 goto reqbuf_err;
1511 }
1512 num_buffers = (vout->vid == OMAP_VIDEO1) ?
1513 video1_numbuffers : video2_numbuffers;
1514 for (i = num_buffers; i < vout->buffer_allocated; i++) {
dd880dd4 1515 omap_vout_free_buffer(vout->buf_virt_addr[i],
5c7ab634
VH		 1516 vout->buffer_size);
1517 vout->buf_virt_addr[i] = 0;
1518 vout->buf_phy_addr[i] = 0;
1519 }
1520 vout->buffer_allocated = num_buffers;
1521 videobuf_mmap_free(q);
1522 } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
1523 if (vout->buffer_allocated) {
1524 videobuf_mmap_free(q);
1525 for (i = 0; i < vout->buffer_allocated; i++) {
1526 kfree(q->bufs[i]);
1527 q->bufs[i] = NULL;
1528 }
1529 vout->buffer_allocated = 0;
1530 }
1531 }
1532
1533 /*store the memory type in data structure */
1534 vout->memory = req->memory;
1535
1536 INIT_LIST_HEAD(&vout->dma_queue);
1537
1538 /* call videobuf_reqbufs api */
1539 ret = videobuf_reqbufs(q, req);
1540 if (ret < 0)
1541 goto reqbuf_err;
1542
1543 vout->buffer_allocated = req->count;
dd880dd4 1544
5c7ab634
VH		 1545reqbuf_err:
1546 mutex_unlock(&vout->lock);
1547 return ret;
1548}
1549
1550static int vidioc_querybuf(struct file *file, void *fh,
1551 struct v4l2_buffer *b)
1552{
1553 struct omap_vout_device *vout = fh;
1554
1555 return videobuf_querybuf(&vout->vbq, b);
1556}
1557
1558static int vidioc_qbuf(struct file *file, void *fh,
1559 struct v4l2_buffer *buffer)
1560{
1561 struct omap_vout_device *vout = fh;
1562 struct videobuf_queue *q = &vout->vbq;
1563
1564 if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
1565 (buffer->index >= vout->buffer_allocated) ||
1566 (q->bufs[buffer->index]->memory != buffer->memory)) {
1567 return -EINVAL;
1568 }
1569 if (V4L2_MEMORY_USERPTR == buffer->memory) {
1570 if ((buffer->length < vout->pix.sizeimage) ||
1571 (0 == buffer->m.userptr)) {
1572 return -EINVAL;
1573 }
1574 }
1575
b366888a 1576 if ((is_rotation_enabled(vout)) &&
5c7ab634
VH		 1577 vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
1578 v4l2_warn(&vout->vid_dev->v4l2_dev,
1579 "DMA Channel not allocated for Rotation\n");
1580 return -EINVAL;
1581 }
1582
1583 return videobuf_qbuf(q, buffer);
1584}
1585
1586static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1587{
1588 struct omap_vout_device *vout = fh;
1589 struct videobuf_queue *q = &vout->vbq;
1590
72915e85
AJ		 1591 int ret;
1592 u32 addr;
1593 unsigned long size;
1594 struct videobuf_buffer *vb;
1595
1596 vb = q->bufs[b->index];
1597
5c7ab634
VH		 1598 if (!vout->streaming)
1599 return -EINVAL;
1600
1601 if (file->f_flags & O_NONBLOCK)
1602 /* Call videobuf_dqbuf for non blocking mode */
72915e85 1603 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
5c7ab634
VH		 1604 else
1605 /* Call videobuf_dqbuf for blocking mode */
72915e85
AJ		 1606 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
1607
1608 addr = (unsigned long) vout->buf_phy_addr[vb->i];
1609 size = (unsigned long) vb->size;
1610 dma_unmap_single(vout->vid_dev->v4l2_dev.dev, addr,
1611 size, DMA_TO_DEVICE);
1612 return ret;
5c7ab634
VH		 1613}
1614
1615static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1616{
1617 int ret = 0, j;
1618 u32 addr = 0, mask = 0;
1619 struct omap_vout_device *vout = fh;
1620 struct videobuf_queue *q = &vout->vbq;
1621 struct omapvideo_info *ovid = &vout->vid_info;
1622
1623 mutex_lock(&vout->lock);
1624
1625 if (vout->streaming) {
1626 ret = -EBUSY;
1627 goto streamon_err;
1628 }
1629
1630 ret = videobuf_streamon(q);
1631 if (ret)
1632 goto streamon_err;
1633
1634 if (list_empty(&vout->dma_queue)) {
1635 ret = -EIO;
1636 goto streamon_err1;
1637 }
1638
1639 /* Get the next frame from the buffer queue */
1640 vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1641 struct videobuf_buffer, queue);
1642 /* Remove buffer from the buffer queue */
1643 list_del(&vout->cur_frm->queue);
1644 /* Mark state of the current frame to active */
1645 vout->cur_frm->state = VIDEOBUF_ACTIVE;
1646 /* Initialize field_id and started member */
1647 vout->field_id = 0;
1648
1649 /* set flag here. Next QBUF will start DMA */
1650 vout->streaming = 1;
1651
1652 vout->first_int = 1;
1653
1654 if (omap_vout_calculate_offset(vout)) {
1655 ret = -EINVAL;
1656 goto streamon_err1;
1657 }
1658 addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i]
1659 + vout->cropped_offset;
1660
5251dd6c
AJ		 1661 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1662 | DISPC_IRQ_VSYNC2;
5c7ab634
VH		 1663
1664 omap_dispc_register_isr(omap_vout_isr, vout, mask);
1665
1666 for (j = 0; j < ovid->num_overlays; j++) {
1667 struct omap_overlay *ovl = ovid->overlays[j];
1668
1669 if (ovl->manager && ovl->manager->device) {
1670 struct omap_overlay_info info;
1671 ovl->get_overlay_info(ovl, &info);
5c7ab634
VH		 1672 info.paddr = addr;
1673 if (ovl->set_overlay_info(ovl, &info)) {
1674 ret = -EINVAL;
1675 goto streamon_err1;
1676 }
1677 }
1678 }
1679
1680 /* First save the configuration in ovelray structure */
1681 ret = omapvid_init(vout, addr);
1682 if (ret)
1683 v4l2_err(&vout->vid_dev->v4l2_dev,
1684 "failed to set overlay info\n");
1685 /* Enable the pipeline and set the Go bit */
1686 ret = omapvid_apply_changes(vout);
1687 if (ret)
1688 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1689
aaa874a9
TV		 1690 for (j = 0; j < ovid->num_overlays; j++) {
1691 struct omap_overlay *ovl = ovid->overlays[j];
1692
1693 if (ovl->manager && ovl->manager->device) {
1694 ret = ovl->enable(ovl);
1695 if (ret)
1696 goto streamon_err1;
1697 }
1698 }
1699
5c7ab634
VH		 1700 ret = 0;
1701
1702streamon_err1:
1703 if (ret)
1704 ret = videobuf_streamoff(q);
1705streamon_err:
1706 mutex_unlock(&vout->lock);
1707 return ret;
1708}
1709
1710static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1711{
1712 u32 mask = 0;
1713 int ret = 0, j;
1714 struct omap_vout_device *vout = fh;
1715 struct omapvideo_info *ovid = &vout->vid_info;
1716
1717 if (!vout->streaming)
1718 return -EINVAL;
1719
1720 vout->streaming = 0;
5251dd6c
AJ		 1721 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1722 | DISPC_IRQ_VSYNC2;
5c7ab634
VH		 1723
1724 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1725
1726 for (j = 0; j < ovid->num_overlays; j++) {
1727 struct omap_overlay *ovl = ovid->overlays[j];
1728
aaa874a9
TV		 1729 if (ovl->manager && ovl->manager->device)
1730 ovl->disable(ovl);
5c7ab634
VH		 1731 }
1732
1733 /* Turn of the pipeline */
1734 ret = omapvid_apply_changes(vout);
1735 if (ret)
1736 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in"
1737 " streamoff\n");
1738
1739 INIT_LIST_HEAD(&vout->dma_queue);
1740 ret = videobuf_streamoff(&vout->vbq);
1741
1742 return ret;
1743}
1744
1745static int vidioc_s_fbuf(struct file *file, void *fh,
1746 struct v4l2_framebuffer *a)
1747{
1748 int enable = 0;
1749 struct omap_overlay *ovl;
1750 struct omapvideo_info *ovid;
1751 struct omap_vout_device *vout = fh;
1752 struct omap_overlay_manager_info info;
1753 enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1754
1755 ovid = &vout->vid_info;
1756 ovl = ovid->overlays[0];
1757
1758 /* OMAP DSS doesn't support Source and Destination color
1759 key together */
1760 if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
1761 (a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
1762 return -EINVAL;
1763 /* OMAP DSS Doesn't support the Destination color key
1764 and alpha blending together */
1765 if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
1766 (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA))
1767 return -EINVAL;
1768
1769 if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) {
1770 vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1771 key_type = OMAP_DSS_COLOR_KEY_VID_SRC;
1772 } else
1773 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1774
1775 if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) {
1776 vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1777 key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1778 } else
1779 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_CHROMAKEY;
1780
1781 if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
1782 V4L2_FBUF_FLAG_SRC_CHROMAKEY))
1783 enable = 1;
1784 else
1785 enable = 0;
1786 if (ovl->manager && ovl->manager->get_manager_info &&
1787 ovl->manager->set_manager_info) {
1788
1789 ovl->manager->get_manager_info(ovl->manager, &info);
1790 info.trans_enabled = enable;
1791 info.trans_key_type = key_type;
1792 info.trans_key = vout->win.chromakey;
1793
1794 if (ovl->manager->set_manager_info(ovl->manager, &info))
1795 return -EINVAL;
1796 }
1797 if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
1798 vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1799 enable = 1;
1800 } else {
1801 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
1802 enable = 0;
1803 }
1804 if (ovl->manager && ovl->manager->get_manager_info &&
1805 ovl->manager->set_manager_info) {
1806 ovl->manager->get_manager_info(ovl->manager, &info);
11354dd5
AT		 1807 /* enable this only if there is no zorder cap */
1808 if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
1809 info.partial_alpha_enabled = enable;
5c7ab634
VH		 1810 if (ovl->manager->set_manager_info(ovl->manager, &info))
1811 return -EINVAL;
1812 }
1813
1814 return 0;
1815}
1816
1817static int vidioc_g_fbuf(struct file *file, void *fh,
1818 struct v4l2_framebuffer *a)
1819{
1820 struct omap_overlay *ovl;
1821 struct omapvideo_info *ovid;
1822 struct omap_vout_device *vout = fh;
1823 struct omap_overlay_manager_info info;
1824
1825 ovid = &vout->vid_info;
1826 ovl = ovid->overlays[0];
1827
1828 a->flags = 0x0;
1829 a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY
1830 | V4L2_FBUF_CAP_SRC_CHROMAKEY;
1831
1832 if (ovl->manager && ovl->manager->get_manager_info) {
1833 ovl->manager->get_manager_info(ovl->manager, &info);
1834 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
1835 a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1836 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
1837 a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1838 }
1839 if (ovl->manager && ovl->manager->get_manager_info) {
1840 ovl->manager->get_manager_info(ovl->manager, &info);
11354dd5 1841 if (info.partial_alpha_enabled)
5c7ab634
VH		 1842 a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1843 }
1844
1845 return 0;
1846}
1847
1848static const struct v4l2_ioctl_ops vout_ioctl_ops = {
1849 .vidioc_querycap = vidioc_querycap,
1850 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
1851 .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out,
1852 .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
1853 .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
1854 .vidioc_queryctrl = vidioc_queryctrl,
1855 .vidioc_g_ctrl = vidioc_g_ctrl,
1856 .vidioc_s_fbuf = vidioc_s_fbuf,
1857 .vidioc_g_fbuf = vidioc_g_fbuf,
1858 .vidioc_s_ctrl = vidioc_s_ctrl,
1859 .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay,
1860 .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay,
1861 .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay,
1862 .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay,
1863 .vidioc_cropcap = vidioc_cropcap,
1864 .vidioc_g_crop = vidioc_g_crop,
1865 .vidioc_s_crop = vidioc_s_crop,
1866 .vidioc_reqbufs = vidioc_reqbufs,
1867 .vidioc_querybuf = vidioc_querybuf,
1868 .vidioc_qbuf = vidioc_qbuf,
1869 .vidioc_dqbuf = vidioc_dqbuf,
1870 .vidioc_streamon = vidioc_streamon,
1871 .vidioc_streamoff = vidioc_streamoff,
1872};
1873
1874static const struct v4l2_file_operations omap_vout_fops = {
1875 .owner = THIS_MODULE,
94f3f48f 1876 .poll = omap_vout_poll,
5c7ab634
VH		 1877 .unlocked_ioctl = video_ioctl2,
1878 .mmap = omap_vout_mmap,
1879 .open = omap_vout_open,
1880 .release = omap_vout_release,
1881};
1882
1883/* Init functions used during driver initialization */
1884/* Initial setup of video_data */
1885static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
1886{
1887 struct video_device *vfd;
1888 struct v4l2_pix_format *pix;
1889 struct v4l2_control *control;
1890 struct omap_dss_device *display =
1891 vout->vid_info.overlays[0]->manager->device;
1892
1893 /* set the default pix */
1894 pix = &vout->pix;
1895
1896 /* Set the default picture of QVGA */
1897 pix->width = QQVGA_WIDTH;
1898 pix->height = QQVGA_HEIGHT;
1899
1900 /* Default pixel format is RGB 5-6-5 */
1901 pix->pixelformat = V4L2_PIX_FMT_RGB565;
1902 pix->field = V4L2_FIELD_ANY;
1903 pix->bytesperline = pix->width * 2;
1904 pix->sizeimage = pix->bytesperline * pix->height;
1905 pix->priv = 0;
1906 pix->colorspace = V4L2_COLORSPACE_JPEG;
1907
1908 vout->bpp = RGB565_BPP;
1909 vout->fbuf.fmt.width = display->panel.timings.x_res;
1910 vout->fbuf.fmt.height = display->panel.timings.y_res;
1911
1912 /* Set the data structures for the overlay parameters*/
1913 vout->win.global_alpha = 255;
1914 vout->fbuf.flags = 0;
1915 vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
1916 V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY;
1917 vout->win.chromakey = 0;
1918
1919 omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
1920
1921 /*Initialize the control variables for
1922 rotation, flipping and background color. */
1923 control = vout->control;
1924 control[0].id = V4L2_CID_ROTATE;
1925 control[0].value = 0;
1926 vout->rotation = 0;
1927 vout->mirror = 0;
1928 vout->control[2].id = V4L2_CID_HFLIP;
1929 vout->control[2].value = 0;
445e258f 1930 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
1931 vout->vrfb_bpp = 2;
5c7ab634
VH		 1932
1933 control[1].id = V4L2_CID_BG_COLOR;
1934 control[1].value = 0;
1935
1936 /* initialize the video_device struct */
1937 vfd = vout->vfd = video_device_alloc();
1938
1939 if (!vfd) {
1940 printk(KERN_ERR VOUT_NAME ": could not allocate"
1941 " video device struct\n");
1942 return -ENOMEM;
1943 }
1944 vfd->release = video_device_release;
1945 vfd->ioctl_ops = &vout_ioctl_ops;
1946
1947 strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
1948
5c7ab634
VH		 1949 vfd->fops = &omap_vout_fops;
1950 vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
1951 mutex_init(&vout->lock);
1952
1953 vfd->minor = -1;
1954 return 0;
1955
1956}
1957
1958/* Setup video buffers */
1959static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
1960 int vid_num)
1961{
1962 u32 numbuffers;
445e258f 1963 int ret = 0, i;
1964 struct omapvideo_info *ovid;
5c7ab634 1965 struct omap_vout_device *vout;
5c7ab634
VH		 1966 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1967 struct omap2video_device *vid_dev =
1968 container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
1969
1970 vout = vid_dev->vouts[vid_num];
445e258f 1971 ovid = &vout->vid_info;
5c7ab634
VH		 1972
1973 numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers;
1974 vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize;
1975 dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size);
1976
1977 for (i = 0; i < numbuffers; i++) {
1978 vout->buf_virt_addr[i] =
1979 omap_vout_alloc_buffer(vout->buffer_size,
1980 (u32 *) &vout->buf_phy_addr[i]);
1981 if (!vout->buf_virt_addr[i]) {
1982 numbuffers = i;
1983 ret = -ENOMEM;
1984 goto free_buffers;
1985 }
1986 }
1987
5c7ab634
VH		 1988 vout->cropped_offset = 0;
1989
445e258f 1990 if (ovid->rotation_type == VOUT_ROT_VRFB) {
1991 int static_vrfb_allocation = (vid_num == 0) ?
1992 vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
1993 ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
1994 static_vrfb_allocation);
5c7ab634 1995 }
5c7ab634 1996
445e258f 1997 return ret;
5c7ab634
VH		 1998
1999free_buffers:
2000 for (i = 0; i < numbuffers; i++) {
2001 omap_vout_free_buffer(vout->buf_virt_addr[i],
2002 vout->buffer_size);
2003 vout->buf_virt_addr[i] = 0;
2004 vout->buf_phy_addr[i] = 0;
2005 }
2006 return ret;
2007
2008}
2009
2010/* Create video out devices */
2011static int __init omap_vout_create_video_devices(struct platform_device *pdev)
2012{
2013 int ret = 0, k;
2014 struct omap_vout_device *vout;
2015 struct video_device *vfd = NULL;
2016 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2017 struct omap2video_device *vid_dev = container_of(v4l2_dev,
2018 struct omap2video_device, v4l2_dev);
2019
2020 for (k = 0; k < pdev->num_resources; k++) {
2021
2ef17c9f 2022 vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
5c7ab634
VH		 2023 if (!vout) {
2024 dev_err(&pdev->dev, ": could not allocate memory\n");
2025 return -ENOMEM;
2026 }
5c7ab634
VH		 2027
2028 vout->vid = k;
2029 vid_dev->vouts[k] = vout;
2030 vout->vid_dev = vid_dev;
2031 /* Select video2 if only 1 overlay is controlled by V4L2 */
2032 if (pdev->num_resources == 1)
2033 vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
2034 else
2035 /* Else select video1 and video2 one by one. */
2036 vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
2037 vout->vid_info.num_overlays = 1;
2038 vout->vid_info.id = k + 1;
2039
445e258f 2040 /* Set VRFB as rotation_type for omap2 and omap3 */
2041 if (cpu_is_omap24xx() || cpu_is_omap34xx())
2042 vout->vid_info.rotation_type = VOUT_ROT_VRFB;
2043
5c7ab634
VH		 2044 /* Setup the default configuration for the video devices
2045 */
2046 if (omap_vout_setup_video_data(vout) != 0) {
2047 ret = -ENOMEM;
2048 goto error;
2049 }
2050
2051 /* Allocate default number of buffers for the video streaming
2052 * and reserve the VRFB space for rotation
2053 */
2054 if (omap_vout_setup_video_bufs(pdev, k) != 0) {
2055 ret = -ENOMEM;
2056 goto error1;
2057 }
2058
2059 /* Register the Video device with V4L2
2060 */
2061 vfd = vout->vfd;
8f3a307b 2062 if (video_register_device(vfd, VFL_TYPE_GRABBER, -1) < 0) {
5c7ab634
VH		 2063 dev_err(&pdev->dev, ": Could not register "
2064 "Video for Linux device\n");
2065 vfd->minor = -1;
2066 ret = -ENODEV;
2067 goto error2;
2068 }
2069 video_set_drvdata(vfd, vout);
2070
2071 /* Configure the overlay structure */
2072 ret = omapvid_init(vid_dev->vouts[k], 0);
2073 if (!ret)
2074 goto success;
2075
2076error2:
445e258f 2077 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
2078 omap_vout_release_vrfb(vout);
5c7ab634
VH		 2079 omap_vout_free_buffers(vout);
2080error1:
2081 video_device_release(vfd);
2082error:
2083 kfree(vout);
2084 return ret;
2085
2086success:
2087 dev_info(&pdev->dev, ": registered and initialized"
2088 " video device %d\n", vfd->minor);
2089 if (k == (pdev->num_resources - 1))
2090 return 0;
2091 }
2092
2093 return -ENODEV;
2094}
2095/* Driver functions */
2096static void omap_vout_cleanup_device(struct omap_vout_device *vout)
2097{
2098 struct video_device *vfd;
445e258f 2099 struct omapvideo_info *ovid;
5c7ab634
VH		 2100
2101 if (!vout)
2102 return;
2103
2104 vfd = vout->vfd;
445e258f 2105 ovid = &vout->vid_info;
5c7ab634
VH		 2106 if (vfd) {
2107 if (!video_is_registered(vfd)) {
2108 /*
2109 * The device was never registered, so release the
2110 * video_device struct directly.
2111 */
2112 video_device_release(vfd);
2113 } else {
2114 /*
2115 * The unregister function will release the video_device
2116 * struct as well as unregistering it.
2117 */
2118 video_unregister_device(vfd);
2119 }
2120 }
445e258f 2121 if (ovid->rotation_type == VOUT_ROT_VRFB) {
2122 omap_vout_release_vrfb(vout);
2123 /* Free the VRFB buffer if allocated
2124 * init time
2125 */
2126 if (vout->vrfb_static_allocation)
2127 omap_vout_free_vrfb_buffers(vout);
2128 }
5c7ab634 2129 omap_vout_free_buffers(vout);
5c7ab634
VH		 2130
2131 kfree(vout);
2132}
2133
2134static int omap_vout_remove(struct platform_device *pdev)
2135{
2136 int k;
2137 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2138 struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
2139 omap2video_device, v4l2_dev);
2140
2141 v4l2_device_unregister(v4l2_dev);
2142 for (k = 0; k < pdev->num_resources; k++)
2143 omap_vout_cleanup_device(vid_dev->vouts[k]);
2144
2145 for (k = 0; k < vid_dev->num_displays; k++) {
2146 if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
5ba9bb0e 2147 vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
5c7ab634
VH		 2148
2149 omap_dss_put_device(vid_dev->displays[k]);
2150 }
2151 kfree(vid_dev);
2152 return 0;
2153}
2154
2155static int __init omap_vout_probe(struct platform_device *pdev)
2156{
2157 int ret = 0, i;
2158 struct omap_overlay *ovl;
2159 struct omap_dss_device *dssdev = NULL;
2160 struct omap_dss_device *def_display;
2161 struct omap2video_device *vid_dev = NULL;
2162
2163 if (pdev->num_resources == 0) {
2164 dev_err(&pdev->dev, "probed for an unknown device\n");
2165 return -ENODEV;
2166 }
2167
2168 vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
2169 if (vid_dev == NULL)
2170 return -ENOMEM;
2171
2172 vid_dev->num_displays = 0;
2173 for_each_dss_dev(dssdev) {
2174 omap_dss_get_device(dssdev);
71c7a972
TV		 2175
2176 if (!dssdev->driver) {
2177 dev_warn(&pdev->dev, "no driver for display: %s\n",
2178 dssdev->name);
2179 omap_dss_put_device(dssdev);
2180 continue;
2181 }
2182
5c7ab634
VH		 2183 vid_dev->displays[vid_dev->num_displays++] = dssdev;
2184 }
2185
2186 if (vid_dev->num_displays == 0) {
2187 dev_err(&pdev->dev, "no displays\n");
2188 ret = -EINVAL;
2189 goto probe_err0;
2190 }
2191
2192 vid_dev->num_overlays = omap_dss_get_num_overlays();
2193 for (i = 0; i < vid_dev->num_overlays; i++)
2194 vid_dev->overlays[i] = omap_dss_get_overlay(i);
2195
2196 vid_dev->num_managers = omap_dss_get_num_overlay_managers();
2197 for (i = 0; i < vid_dev->num_managers; i++)
2198 vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
2199
2200 /* Get the Video1 overlay and video2 overlay.
2201 * Setup the Display attached to that overlays
2202 */
2203 for (i = 1; i < vid_dev->num_overlays; i++) {
2204 ovl = omap_dss_get_overlay(i);
2205 if (ovl->manager && ovl->manager->device) {
2206 def_display = ovl->manager->device;
2207 } else {
2208 dev_warn(&pdev->dev, "cannot find display\n");
2209 def_display = NULL;
2210 }
2211 if (def_display) {
5ba9bb0e
VH		 2212 struct omap_dss_driver *dssdrv = def_display->driver;
2213
2214 ret = dssdrv->enable(def_display);
5c7ab634
VH		 2215 if (ret) {
2216 /* Here we are not considering a error
2217 * as display may be enabled by frame
2218 * buffer driver
2219 */
2220 dev_warn(&pdev->dev,
2221 "'%s' Display already enabled\n",
2222 def_display->name);
2223 }
5c7ab634
VH		 2224 }
2225 }
2226
2227 if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
2228 dev_err(&pdev->dev, "v4l2_device_register failed\n");
2229 ret = -ENODEV;
2230 goto probe_err1;
2231 }
2232
2233 ret = omap_vout_create_video_devices(pdev);
2234 if (ret)
2235 goto probe_err2;
2236
2237 for (i = 0; i < vid_dev->num_displays; i++) {
2238 struct omap_dss_device *display = vid_dev->displays[i];
2239
5ba9bb0e
VH		 2240 if (display->driver->update)
2241 display->driver->update(display, 0, 0,
5c7ab634
VH		 2242 display->panel.timings.x_res,
2243 display->panel.timings.y_res);
2244 }
2245 return 0;
2246
2247probe_err2:
2248 v4l2_device_unregister(&vid_dev->v4l2_dev);
2249probe_err1:
2250 for (i = 1; i < vid_dev->num_overlays; i++) {
2251 def_display = NULL;
2252 ovl = omap_dss_get_overlay(i);
2253 if (ovl->manager && ovl->manager->device)
2254 def_display = ovl->manager->device;
2255
5ba9bb0e
VH		 2256 if (def_display && def_display->driver)
2257 def_display->driver->disable(def_display);
5c7ab634
VH		 2258 }
2259probe_err0:
2260 kfree(vid_dev);
2261 return ret;
2262}
2263
2264static struct platform_driver omap_vout_driver = {
2265 .driver = {
2266 .name = VOUT_NAME,
2267 },
2268 .probe = omap_vout_probe,
2269 .remove = omap_vout_remove,
2270};
2271
2272static int __init omap_vout_init(void)
2273{
2274 if (platform_driver_register(&omap_vout_driver) != 0) {
2275 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
2276 return -EINVAL;
2277 }
2278 return 0;
2279}
2280
2281static void omap_vout_cleanup(void)
2282{
2283 platform_driver_unregister(&omap_vout_driver);
2284}
2285
2286late_initcall(omap_vout_init);
2287module_exit(omap_vout_cleanup);
Linux kernel - Deliverables
This page took 0.265374 seconds and 5 git commands to generate.