4 * Copyright (C) 2005-2010 Texas Instruments.
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.
10 * Leveraged code from the OMAP2 camera driver
11 * Video-for-Linux (Version 2) camera capture driver for
12 * the OMAP24xx camera controller.
14 * Author: Andy Lowe (source@mvista.com)
16 * Copyright (C) 2004 MontaVista Software, Inc.
17 * Copyright (C) 2010 Texas Instruments.
20 * 20-APR-2006 Khasim Modified VRFB based Rotation,
21 * The image data is always read from 0 degree
23 * to the virtual space of desired rotation angle
24 * 4-DEC-2006 Jian Changed to support better memory management
26 * 17-Nov-2008 Hardik Changed driver to use video_ioctl2
28 * 23-Feb-2010 Vaibhav H Modified to use new DSS2 interface
32 #include <linux/init.h>
33 #include <linux/module.h>
34 #include <linux/vmalloc.h>
35 #include <linux/sched.h>
36 #include <linux/types.h>
37 #include <linux/platform_device.h>
38 #include <linux/irq.h>
39 #include <linux/videodev2.h>
40 #include <linux/dma-mapping.h>
41 #include <linux/slab.h>
43 #include <media/videobuf-dma-contig.h>
44 #include <media/v4l2-device.h>
45 #include <media/v4l2-ioctl.h>
48 #include <plat/vrfb.h>
49 #include <video/omapdss.h>
51 #include "omap_voutlib.h"
52 #include "omap_voutdef.h"
53 #include "omap_vout_vrfb.h"
55 MODULE_AUTHOR("Texas Instruments");
56 MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
57 MODULE_LICENSE("GPL");
59 /* Driver Configuration macros */
60 #define VOUT_NAME "omap_vout"
62 enum omap_vout_channels {
67 static struct videobuf_queue_ops video_vbq_ops;
68 /* Variables configurable through module params*/
69 static u32 video1_numbuffers = 3;
70 static u32 video2_numbuffers = 3;
71 static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
72 static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
73 static u32 vid1_static_vrfb_alloc;
74 static u32 vid2_static_vrfb_alloc;
77 /* Module parameters */
78 module_param(video1_numbuffers, uint, S_IRUGO);
79 MODULE_PARM_DESC(video1_numbuffers,
80 "Number of buffers to be allocated at init time for Video1 device.");
82 module_param(video2_numbuffers, uint, S_IRUGO);
83 MODULE_PARM_DESC(video2_numbuffers,
84 "Number of buffers to be allocated at init time for Video2 device.");
86 module_param(video1_bufsize, uint, S_IRUGO);
87 MODULE_PARM_DESC(video1_bufsize,
88 "Size of the buffer to be allocated for video1 device");
90 module_param(video2_bufsize, uint, S_IRUGO);
91 MODULE_PARM_DESC(video2_bufsize,
92 "Size of the buffer to be allocated for video2 device");
94 module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
95 MODULE_PARM_DESC(vid1_static_vrfb_alloc,
96 "Static allocation of the VRFB buffer for video1 device");
98 module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
99 MODULE_PARM_DESC(vid2_static_vrfb_alloc,
100 "Static allocation of the VRFB buffer for video2 device");
102 module_param(debug, bool, S_IRUGO);
103 MODULE_PARM_DESC(debug, "Debug level (0-1)");
105 /* list of image formats supported by OMAP2 video pipelines */
106 static const struct v4l2_fmtdesc omap_formats[] = {
108 /* Note: V4L2 defines RGB565 as:
111 * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
113 * We interpret RGB565 as:
116 * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
118 .description = "RGB565, le",
119 .pixelformat = V4L2_PIX_FMT_RGB565,
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
125 .description = "RGB32, le",
126 .pixelformat = V4L2_PIX_FMT_RGB32,
129 /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use
130 * this for RGB24 packed mode
133 .description = "RGB24, le",
134 .pixelformat = V4L2_PIX_FMT_RGB24,
137 .description = "YUYV (YUV 4:2:2), packed",
138 .pixelformat = V4L2_PIX_FMT_YUYV,
141 .description = "UYVY, packed",
142 .pixelformat = V4L2_PIX_FMT_UYVY,
146 #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
151 static int omap_vout_try_format(struct v4l2_pix_format *pix)
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);
159 for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
160 if (pix->pixelformat == omap_formats[ifmt].pixelformat)
164 if (ifmt == NUM_OUTPUT_FORMATS)
167 pix->pixelformat = omap_formats[ifmt].pixelformat;
168 pix->field = V4L2_FIELD_ANY;
171 switch (pix->pixelformat) {
172 case V4L2_PIX_FMT_YUYV:
173 case V4L2_PIX_FMT_UYVY:
175 pix->colorspace = V4L2_COLORSPACE_JPEG;
178 case V4L2_PIX_FMT_RGB565:
179 case V4L2_PIX_FMT_RGB565X:
180 pix->colorspace = V4L2_COLORSPACE_SRGB;
183 case V4L2_PIX_FMT_RGB24:
184 pix->colorspace = V4L2_COLORSPACE_SRGB;
187 case V4L2_PIX_FMT_RGB32:
188 case V4L2_PIX_FMT_BGR32:
189 pix->colorspace = V4L2_COLORSPACE_SRGB;
193 pix->bytesperline = pix->width * bpp;
194 pix->sizeimage = pix->bytesperline * pix->height;
200 * omap_vout_uservirt_to_phys: This inline function is used to convert user
201 * space virtual address to physical address.
203 static u32 omap_vout_uservirt_to_phys(u32 virtp)
205 unsigned long physp = 0;
206 struct vm_area_struct *vma;
207 struct mm_struct *mm = current->mm;
209 /* For kernel direct-mapped memory, take the easy way */
210 if (virtp >= PAGE_OFFSET)
211 return virt_to_phys((void *) virtp);
213 down_read(¤t->mm->mmap_sem);
214 vma = find_vma(mm, virtp);
215 if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) {
216 /* this will catch, kernel-allocated, mmaped-to-usermode
218 physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start);
219 up_read(¤t->mm->mmap_sem);
221 /* otherwise, use get_user_pages() for general userland pages */
222 int res, nr_pages = 1;
225 res = get_user_pages(current, current->mm, virtp, nr_pages, 1,
227 up_read(¤t->mm->mmap_sem);
229 if (res == nr_pages) {
230 physp = __pa(page_address(&pages[0]) +
231 (virtp & ~PAGE_MASK));
233 printk(KERN_WARNING VOUT_NAME
234 "get_user_pages failed\n");
243 * Free the V4L2 buffers
245 void omap_vout_free_buffers(struct omap_vout_device *vout)
249 /* Allocate memory for the buffers */
250 numbuffers = (vout->vid) ? video2_numbuffers : video1_numbuffers;
251 vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize;
253 for (i = 0; i < numbuffers; i++) {
254 omap_vout_free_buffer(vout->buf_virt_addr[i],
256 vout->buf_phy_addr[i] = 0;
257 vout->buf_virt_addr[i] = 0;
262 * Convert V4L2 rotation to DSS rotation
263 * V4L2 understand 0, 90, 180, 270.
264 * Convert to 0, 1, 2 and 3 respectively for DSS
266 static int v4l2_rot_to_dss_rot(int v4l2_rotation,
267 enum dss_rotation *rotation, bool mirror)
271 switch (v4l2_rotation) {
273 *rotation = dss_rotation_90_degree;
276 *rotation = dss_rotation_180_degree;
279 *rotation = dss_rotation_270_degree;
282 *rotation = dss_rotation_0_degree;
290 static int omap_vout_calculate_offset(struct omap_vout_device *vout)
292 struct omapvideo_info *ovid;
293 struct v4l2_rect *crop = &vout->crop;
294 struct v4l2_pix_format *pix = &vout->pix;
295 int *cropped_offset = &vout->cropped_offset;
296 int ps = 2, line_length = 0;
298 ovid = &vout->vid_info;
300 if (ovid->rotation_type == VOUT_ROT_VRFB) {
301 omap_vout_calculate_vrfb_offset(vout);
303 vout->line_length = line_length = pix->width;
305 if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
306 V4L2_PIX_FMT_UYVY == pix->pixelformat)
308 else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
310 else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
315 *cropped_offset = (line_length * ps) *
316 crop->top + crop->left * ps;
319 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
320 __func__, vout->cropped_offset);
326 * Convert V4L2 pixel format to DSS pixel format
328 static int video_mode_to_dss_mode(struct omap_vout_device *vout)
330 struct omap_overlay *ovl;
331 struct omapvideo_info *ovid;
332 struct v4l2_pix_format *pix = &vout->pix;
333 enum omap_color_mode mode;
335 ovid = &vout->vid_info;
336 ovl = ovid->overlays[0];
338 switch (pix->pixelformat) {
339 case V4L2_PIX_FMT_YUYV:
340 mode = OMAP_DSS_COLOR_YUV2;
342 case V4L2_PIX_FMT_UYVY:
343 mode = OMAP_DSS_COLOR_UYVY;
345 case V4L2_PIX_FMT_RGB565:
346 mode = OMAP_DSS_COLOR_RGB16;
348 case V4L2_PIX_FMT_RGB24:
349 mode = OMAP_DSS_COLOR_RGB24P;
351 case V4L2_PIX_FMT_RGB32:
352 mode = (ovl->id == OMAP_DSS_VIDEO1) ?
353 OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
355 case V4L2_PIX_FMT_BGR32:
356 mode = OMAP_DSS_COLOR_RGBX32;
368 static int omapvid_setup_overlay(struct omap_vout_device *vout,
369 struct omap_overlay *ovl, int posx, int posy, int outw,
373 struct omap_overlay_info info;
374 int cropheight, cropwidth, pixheight, pixwidth;
376 if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
377 (outw != vout->pix.width || outh != vout->pix.height)) {
382 vout->dss_mode = video_mode_to_dss_mode(vout);
383 if (vout->dss_mode == -EINVAL) {
388 /* Setup the input plane parameters according to
389 * rotation value selected.
391 if (is_rotation_90_or_270(vout)) {
392 cropheight = vout->crop.width;
393 cropwidth = vout->crop.height;
394 pixheight = vout->pix.width;
395 pixwidth = vout->pix.height;
397 cropheight = vout->crop.height;
398 cropwidth = vout->crop.width;
399 pixheight = vout->pix.height;
400 pixwidth = vout->pix.width;
403 ovl->get_overlay_info(ovl, &info);
405 info.width = cropwidth;
406 info.height = cropheight;
407 info.color_mode = vout->dss_mode;
408 info.mirror = vout->mirror;
411 info.out_width = outw;
412 info.out_height = outh;
413 info.global_alpha = vout->win.global_alpha;
414 if (!is_rotation_enabled(vout)) {
416 info.rotation_type = OMAP_DSS_ROT_DMA;
417 info.screen_width = pixwidth;
419 info.rotation = vout->rotation;
420 info.rotation_type = OMAP_DSS_ROT_VRFB;
421 info.screen_width = 2048;
424 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
425 "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n"
426 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
427 "out_height=%d rotation_type=%d screen_width=%d\n",
428 __func__, info.enabled, info.paddr, info.width, info.height,
429 info.color_mode, info.rotation, info.mirror, info.pos_x,
430 info.pos_y, info.out_width, info.out_height, info.rotation_type,
433 ret = ovl->set_overlay_info(ovl, &info);
440 v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
445 * Initialize the overlay structure
447 static int omapvid_init(struct omap_vout_device *vout, u32 addr)
450 struct v4l2_window *win;
451 struct omap_overlay *ovl;
452 int posx, posy, outw, outh, temp;
453 struct omap_video_timings *timing;
454 struct omapvideo_info *ovid = &vout->vid_info;
457 for (i = 0; i < ovid->num_overlays; i++) {
458 ovl = ovid->overlays[i];
459 if (!ovl->manager || !ovl->manager->device)
462 timing = &ovl->manager->device->panel.timings;
465 outh = win->w.height;
466 switch (vout->rotation) {
467 case dss_rotation_90_degree:
468 /* Invert the height and width for 90
469 * and 270 degree rotation
474 posy = (timing->y_res - win->w.width) - win->w.left;
478 case dss_rotation_180_degree:
479 posx = (timing->x_res - win->w.width) - win->w.left;
480 posy = (timing->y_res - win->w.height) - win->w.top;
483 case dss_rotation_270_degree:
488 posx = (timing->x_res - win->w.height) - win->w.top;
497 ret = omapvid_setup_overlay(vout, ovl, posx, posy,
500 goto omapvid_init_err;
505 v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
510 * Apply the changes set the go bit of DSS
512 static int omapvid_apply_changes(struct omap_vout_device *vout)
515 struct omap_overlay *ovl;
516 struct omapvideo_info *ovid = &vout->vid_info;
518 for (i = 0; i < ovid->num_overlays; i++) {
519 ovl = ovid->overlays[i];
520 if (!ovl->manager || !ovl->manager->device)
522 ovl->manager->apply(ovl->manager);
528 static void omap_vout_isr(void *arg, unsigned int irqstatus)
532 struct omap_overlay *ovl;
533 struct timeval timevalue;
534 struct omapvideo_info *ovid;
535 struct omap_dss_device *cur_display;
536 struct omap_vout_device *vout = (struct omap_vout_device *)arg;
538 if (!vout->streaming)
541 ovid = &vout->vid_info;
542 ovl = ovid->overlays[0];
543 /* get the display device attached to the overlay */
544 if (!ovl->manager || !ovl->manager->device)
547 cur_display = ovl->manager->device;
549 spin_lock(&vout->vbq_lock);
550 do_gettimeofday(&timevalue);
552 if (cur_display->type != OMAP_DISPLAY_TYPE_VENC) {
553 switch (cur_display->type) {
554 case OMAP_DISPLAY_TYPE_DPI:
555 if (!(irqstatus & (DISPC_IRQ_VSYNC | DISPC_IRQ_VSYNC2)))
558 case OMAP_DISPLAY_TYPE_HDMI:
559 if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
565 if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
566 vout->cur_frm->ts = timevalue;
567 vout->cur_frm->state = VIDEOBUF_DONE;
568 wake_up_interruptible(&vout->cur_frm->done);
569 vout->cur_frm = vout->next_frm;
572 if (list_empty(&vout->dma_queue))
575 vout->next_frm = list_entry(vout->dma_queue.next,
576 struct videobuf_buffer, queue);
577 list_del(&vout->next_frm->queue);
579 vout->next_frm->state = VIDEOBUF_ACTIVE;
581 addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
582 + vout->cropped_offset;
584 /* First save the configuration in ovelray structure */
585 ret = omapvid_init(vout, addr);
587 printk(KERN_ERR VOUT_NAME
588 "failed to set overlay info\n");
589 /* Enable the pipeline and set the Go bit */
590 ret = omapvid_apply_changes(vout);
592 printk(KERN_ERR VOUT_NAME "failed to change mode\n");
595 if (vout->first_int) {
599 if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
601 else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
607 if (fid != vout->field_id) {
609 vout->field_id = fid;
614 if (vout->cur_frm == vout->next_frm)
617 vout->cur_frm->ts = timevalue;
618 vout->cur_frm->state = VIDEOBUF_DONE;
619 wake_up_interruptible(&vout->cur_frm->done);
620 vout->cur_frm = vout->next_frm;
621 } else if (1 == fid) {
622 if (list_empty(&vout->dma_queue) ||
623 (vout->cur_frm != vout->next_frm))
626 vout->next_frm = list_entry(vout->dma_queue.next,
627 struct videobuf_buffer, queue);
628 list_del(&vout->next_frm->queue);
630 vout->next_frm->state = VIDEOBUF_ACTIVE;
631 addr = (unsigned long)
632 vout->queued_buf_addr[vout->next_frm->i] +
633 vout->cropped_offset;
634 /* First save the configuration in ovelray structure */
635 ret = omapvid_init(vout, addr);
637 printk(KERN_ERR VOUT_NAME
638 "failed to set overlay info\n");
639 /* Enable the pipeline and set the Go bit */
640 ret = omapvid_apply_changes(vout);
642 printk(KERN_ERR VOUT_NAME
643 "failed to change mode\n");
649 spin_unlock(&vout->vbq_lock);
653 /* Video buffer call backs */
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
661 static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
664 int startindex = 0, i, j;
665 u32 phy_addr = 0, virt_addr = 0;
666 struct omap_vout_device *vout = q->priv_data;
667 struct omapvideo_info *ovid = &vout->vid_info;
672 if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
675 startindex = (vout->vid == OMAP_VIDEO1) ?
676 video1_numbuffers : video2_numbuffers;
677 if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
680 if (ovid->rotation_type == VOUT_ROT_VRFB) {
681 if (omap_vout_vrfb_buffer_setup(vout, count, startindex))
685 if (V4L2_MEMORY_MMAP != vout->memory)
688 /* Now allocated the V4L2 buffers */
689 *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp);
690 startindex = (vout->vid == OMAP_VIDEO1) ?
691 video1_numbuffers : video2_numbuffers;
693 /* Check the size of the buffer */
694 if (*size > vout->buffer_size) {
695 v4l2_err(&vout->vid_dev->v4l2_dev,
696 "buffer allocation mismatch [%u] [%u]\n",
697 *size, vout->buffer_size);
701 for (i = startindex; i < *count; i++) {
702 vout->buffer_size = *size;
704 virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
707 if (ovid->rotation_type == VOUT_ROT_NONE) {
710 if (!is_rotation_enabled(vout))
712 /* Free the VRFB buffers if no space for V4L2 buffers */
713 for (j = i; j < *count; j++) {
714 omap_vout_free_buffer(
715 vout->smsshado_virt_addr[j],
716 vout->smsshado_size);
717 vout->smsshado_virt_addr[j] = 0;
718 vout->smsshado_phy_addr[j] = 0;
722 vout->buf_virt_addr[i] = virt_addr;
723 vout->buf_phy_addr[i] = phy_addr;
725 *count = vout->buffer_allocated = i;
731 * Free the V4L2 buffers additionally allocated than default
734 static void omap_vout_free_extra_buffers(struct omap_vout_device *vout)
736 int num_buffers = 0, i;
738 num_buffers = (vout->vid == OMAP_VIDEO1) ?
739 video1_numbuffers : video2_numbuffers;
741 for (i = num_buffers; i < vout->buffer_allocated; i++) {
742 if (vout->buf_virt_addr[i])
743 omap_vout_free_buffer(vout->buf_virt_addr[i],
746 vout->buf_virt_addr[i] = 0;
747 vout->buf_phy_addr[i] = 0;
749 vout->buffer_allocated = num_buffers;
753 * This function will be called when VIDIOC_QBUF ioctl is called.
754 * It prepare buffers before give out for the display. This function
755 * converts user space virtual address into physical address if userptr memory
756 * exchange mechanism is used. If rotation is enabled, it copies entire
757 * buffer into VRFB memory space before giving it to the DSS.
759 static int omap_vout_buffer_prepare(struct videobuf_queue *q,
760 struct videobuf_buffer *vb,
761 enum v4l2_field field)
763 struct omap_vout_device *vout = q->priv_data;
764 struct omapvideo_info *ovid = &vout->vid_info;
766 if (VIDEOBUF_NEEDS_INIT == vb->state) {
767 vb->width = vout->pix.width;
768 vb->height = vout->pix.height;
769 vb->size = vb->width * vb->height * vout->bpp;
772 vb->state = VIDEOBUF_PREPARED;
773 /* if user pointer memory mechanism is used, get the physical
774 * address of the buffer
776 if (V4L2_MEMORY_USERPTR == vb->memory) {
779 /* Physical address */
780 vout->queued_buf_addr[vb->i] = (u8 *)
781 omap_vout_uservirt_to_phys(vb->baddr);
786 addr = (unsigned long) vout->buf_virt_addr[vb->i];
787 size = (unsigned long) vb->size;
789 dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr,
790 size, DMA_TO_DEVICE);
791 if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr))
792 v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n");
794 vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i];
797 if (ovid->rotation_type == VOUT_ROT_VRFB)
798 return omap_vout_prepare_vrfb(vout, vb);
804 * Buffer queue function will be called from the videobuf layer when _QBUF
805 * ioctl is called. It is used to enqueue buffer, which is ready to be
808 static void omap_vout_buffer_queue(struct videobuf_queue *q,
809 struct videobuf_buffer *vb)
811 struct omap_vout_device *vout = q->priv_data;
813 /* Driver is also maintainig a queue. So enqueue buffer in the driver
815 list_add_tail(&vb->queue, &vout->dma_queue);
817 vb->state = VIDEOBUF_QUEUED;
821 * Buffer release function is called from videobuf layer to release buffer
822 * which are already allocated
824 static void omap_vout_buffer_release(struct videobuf_queue *q,
825 struct videobuf_buffer *vb)
827 struct omap_vout_device *vout = q->priv_data;
829 vb->state = VIDEOBUF_NEEDS_INIT;
831 if (V4L2_MEMORY_MMAP != vout->memory)
838 static unsigned int omap_vout_poll(struct file *file,
839 struct poll_table_struct *wait)
841 struct omap_vout_device *vout = file->private_data;
842 struct videobuf_queue *q = &vout->vbq;
844 return videobuf_poll_stream(file, q, wait);
847 static void omap_vout_vm_open(struct vm_area_struct *vma)
849 struct omap_vout_device *vout = vma->vm_private_data;
851 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
852 "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
856 static void omap_vout_vm_close(struct vm_area_struct *vma)
858 struct omap_vout_device *vout = vma->vm_private_data;
860 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
861 "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
865 static struct vm_operations_struct omap_vout_vm_ops = {
866 .open = omap_vout_vm_open,
867 .close = omap_vout_vm_close,
870 static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
874 unsigned long start = vma->vm_start;
875 unsigned long size = (vma->vm_end - vma->vm_start);
876 struct omap_vout_device *vout = file->private_data;
877 struct videobuf_queue *q = &vout->vbq;
879 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
880 " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__,
881 vma->vm_pgoff, vma->vm_start, vma->vm_end);
883 /* look for the buffer to map */
884 for (i = 0; i < VIDEO_MAX_FRAME; i++) {
885 if (NULL == q->bufs[i])
887 if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
889 if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
893 if (VIDEO_MAX_FRAME == i) {
894 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
895 "offset invalid [offset=0x%lx]\n",
896 (vma->vm_pgoff << PAGE_SHIFT));
899 /* Check the size of the buffer */
900 if (size > vout->buffer_size) {
901 v4l2_err(&vout->vid_dev->v4l2_dev,
902 "insufficient memory [%lu] [%u]\n",
903 size, vout->buffer_size);
907 q->bufs[i]->baddr = vma->vm_start;
909 vma->vm_flags |= VM_RESERVED;
910 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
911 vma->vm_ops = &omap_vout_vm_ops;
912 vma->vm_private_data = (void *) vout;
913 pos = (void *)vout->buf_virt_addr[i];
914 vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT;
917 pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
918 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
925 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
930 static int omap_vout_release(struct file *file)
933 struct videobuf_queue *q;
934 struct omapvideo_info *ovid;
935 struct omap_vout_device *vout = file->private_data;
937 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
938 ovid = &vout->vid_info;
944 /* Disable all the overlay managers connected with this interface */
945 for (i = 0; i < ovid->num_overlays; i++) {
946 struct omap_overlay *ovl = ovid->overlays[i];
947 if (ovl->manager && ovl->manager->device) {
948 struct omap_overlay_info info;
949 ovl->get_overlay_info(ovl, &info);
951 ovl->set_overlay_info(ovl, &info);
954 /* Turn off the pipeline */
955 ret = omapvid_apply_changes(vout);
957 v4l2_warn(&vout->vid_dev->v4l2_dev,
958 "Unable to apply changes\n");
960 /* Free all buffers */
961 omap_vout_free_extra_buffers(vout);
963 /* Free the VRFB buffers only if they are allocated
964 * during reqbufs. Don't free if init time allocated
966 if (ovid->rotation_type == VOUT_ROT_VRFB) {
967 if (!vout->vrfb_static_allocation)
968 omap_vout_free_vrfb_buffers(vout);
970 videobuf_mmap_free(q);
972 /* Even if apply changes fails we should continue
973 freeing allocated memory */
974 if (vout->streaming) {
977 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN |
978 DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2;
979 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
982 videobuf_streamoff(q);
983 videobuf_queue_cancel(q);
986 if (vout->mmap_count != 0)
987 vout->mmap_count = 0;
990 file->private_data = NULL;
992 if (vout->buffer_allocated)
993 videobuf_mmap_free(q);
995 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
999 static int omap_vout_open(struct file *file)
1001 struct videobuf_queue *q;
1002 struct omap_vout_device *vout = NULL;
1004 vout = video_drvdata(file);
1005 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
1010 /* for now, we only support single open */
1016 file->private_data = vout;
1017 vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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);
1026 videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
1027 &vout->vbq_lock, vout->type, V4L2_FIELD_NONE,
1028 sizeof(struct videobuf_buffer), vout, NULL);
1030 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1037 static int vidioc_querycap(struct file *file, void *fh,
1038 struct v4l2_capability *cap)
1040 struct omap_vout_device *vout = fh;
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 V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
1051 static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
1052 struct v4l2_fmtdesc *fmt)
1054 int index = fmt->index;
1056 if (index >= NUM_OUTPUT_FORMATS)
1059 fmt->flags = omap_formats[index].flags;
1060 strlcpy(fmt->description, omap_formats[index].description,
1061 sizeof(fmt->description));
1062 fmt->pixelformat = omap_formats[index].pixelformat;
1067 static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
1068 struct v4l2_format *f)
1070 struct omap_vout_device *vout = fh;
1072 f->fmt.pix = vout->pix;
1077 static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
1078 struct v4l2_format *f)
1080 struct omap_overlay *ovl;
1081 struct omapvideo_info *ovid;
1082 struct omap_video_timings *timing;
1083 struct omap_vout_device *vout = fh;
1085 ovid = &vout->vid_info;
1086 ovl = ovid->overlays[0];
1088 if (!ovl->manager || !ovl->manager->device)
1090 /* get the display device attached to the overlay */
1091 timing = &ovl->manager->device->panel.timings;
1093 vout->fbuf.fmt.height = timing->y_res;
1094 vout->fbuf.fmt.width = timing->x_res;
1096 omap_vout_try_format(&f->fmt.pix);
1100 static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
1101 struct v4l2_format *f)
1104 struct omap_overlay *ovl;
1105 struct omapvideo_info *ovid;
1106 struct omap_video_timings *timing;
1107 struct omap_vout_device *vout = fh;
1109 if (vout->streaming)
1112 mutex_lock(&vout->lock);
1114 ovid = &vout->vid_info;
1115 ovl = ovid->overlays[0];
1117 /* get the display device attached to the overlay */
1118 if (!ovl->manager || !ovl->manager->device) {
1120 goto s_fmt_vid_out_exit;
1122 timing = &ovl->manager->device->panel.timings;
1124 /* We dont support RGB24-packed mode if vrfb rotation
1126 if ((is_rotation_enabled(vout)) &&
1127 f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1129 goto s_fmt_vid_out_exit;
1132 /* get the framebuffer parameters */
1134 if (is_rotation_90_or_270(vout)) {
1135 vout->fbuf.fmt.height = timing->x_res;
1136 vout->fbuf.fmt.width = timing->y_res;
1138 vout->fbuf.fmt.height = timing->y_res;
1139 vout->fbuf.fmt.width = timing->x_res;
1142 /* change to samller size is OK */
1144 bpp = omap_vout_try_format(&f->fmt.pix);
1145 f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
1147 /* try & set the new output format */
1149 vout->pix = f->fmt.pix;
1152 /* If YUYV then vrfb bpp is 2, for others its 1 */
1153 if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
1154 V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
1157 /* set default crop and win */
1158 omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
1160 /* Save the changes in the overlay strcuture */
1161 ret = omapvid_init(vout, 0);
1163 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1164 goto s_fmt_vid_out_exit;
1170 mutex_unlock(&vout->lock);
1174 static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
1175 struct v4l2_format *f)
1178 struct omap_vout_device *vout = fh;
1179 struct omap_overlay *ovl;
1180 struct omapvideo_info *ovid;
1181 struct v4l2_window *win = &f->fmt.win;
1183 ovid = &vout->vid_info;
1184 ovl = ovid->overlays[0];
1186 ret = omap_vout_try_window(&vout->fbuf, win);
1189 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1190 win->global_alpha = 255;
1192 win->global_alpha = f->fmt.win.global_alpha;
1198 static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
1199 struct v4l2_format *f)
1202 struct omap_overlay *ovl;
1203 struct omapvideo_info *ovid;
1204 struct omap_vout_device *vout = fh;
1205 struct v4l2_window *win = &f->fmt.win;
1207 mutex_lock(&vout->lock);
1208 ovid = &vout->vid_info;
1209 ovl = ovid->overlays[0];
1211 ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
1213 /* Video1 plane does not support global alpha on OMAP3 */
1214 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1215 vout->win.global_alpha = 255;
1217 vout->win.global_alpha = f->fmt.win.global_alpha;
1219 vout->win.chromakey = f->fmt.win.chromakey;
1221 mutex_unlock(&vout->lock);
1225 static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh,
1226 struct v4l2_fmtdesc *fmt)
1228 int index = fmt->index;
1230 if (index >= NUM_OUTPUT_FORMATS)
1233 fmt->flags = omap_formats[index].flags;
1234 strlcpy(fmt->description, omap_formats[index].description,
1235 sizeof(fmt->description));
1236 fmt->pixelformat = omap_formats[index].pixelformat;
1240 static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
1241 struct v4l2_format *f)
1244 struct omap_overlay *ovl;
1245 struct omapvideo_info *ovid;
1246 struct omap_vout_device *vout = fh;
1247 struct omap_overlay_manager_info info;
1248 struct v4l2_window *win = &f->fmt.win;
1250 ovid = &vout->vid_info;
1251 ovl = ovid->overlays[0];
1253 win->w = vout->win.w;
1254 win->field = vout->win.field;
1255 win->global_alpha = vout->win.global_alpha;
1257 if (ovl->manager && ovl->manager->get_manager_info) {
1258 ovl->manager->get_manager_info(ovl->manager, &info);
1259 key_value = info.trans_key;
1261 win->chromakey = key_value;
1265 static int vidioc_cropcap(struct file *file, void *fh,
1266 struct v4l2_cropcap *cropcap)
1268 struct omap_vout_device *vout = fh;
1269 struct v4l2_pix_format *pix = &vout->pix;
1271 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1274 /* Width and height are always even */
1275 cropcap->bounds.width = pix->width & ~1;
1276 cropcap->bounds.height = pix->height & ~1;
1278 omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect);
1279 cropcap->pixelaspect.numerator = 1;
1280 cropcap->pixelaspect.denominator = 1;
1284 static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1286 struct omap_vout_device *vout = fh;
1288 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1290 crop->c = vout->crop;
1294 static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1297 struct omap_vout_device *vout = fh;
1298 struct omapvideo_info *ovid;
1299 struct omap_overlay *ovl;
1300 struct omap_video_timings *timing;
1302 if (vout->streaming)
1305 mutex_lock(&vout->lock);
1306 ovid = &vout->vid_info;
1307 ovl = ovid->overlays[0];
1309 if (!ovl->manager || !ovl->manager->device) {
1313 /* get the display device attached to the overlay */
1314 timing = &ovl->manager->device->panel.timings;
1316 if (is_rotation_90_or_270(vout)) {
1317 vout->fbuf.fmt.height = timing->x_res;
1318 vout->fbuf.fmt.width = timing->y_res;
1320 vout->fbuf.fmt.height = timing->y_res;
1321 vout->fbuf.fmt.width = timing->x_res;
1324 if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1325 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
1326 &vout->fbuf, &crop->c);
1329 mutex_unlock(&vout->lock);
1333 static int vidioc_queryctrl(struct file *file, void *fh,
1334 struct v4l2_queryctrl *ctrl)
1339 case V4L2_CID_ROTATE:
1340 ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0);
1342 case V4L2_CID_BG_COLOR:
1343 ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0);
1345 case V4L2_CID_VFLIP:
1346 ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
1349 ctrl->name[0] = '\0';
1355 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
1358 struct omap_vout_device *vout = fh;
1361 case V4L2_CID_ROTATE:
1362 ctrl->value = vout->control[0].value;
1364 case V4L2_CID_BG_COLOR:
1366 struct omap_overlay_manager_info info;
1367 struct omap_overlay *ovl;
1369 ovl = vout->vid_info.overlays[0];
1370 if (!ovl->manager || !ovl->manager->get_manager_info) {
1375 ovl->manager->get_manager_info(ovl->manager, &info);
1376 ctrl->value = info.default_color;
1379 case V4L2_CID_VFLIP:
1380 ctrl->value = vout->control[2].value;
1388 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
1391 struct omap_vout_device *vout = fh;
1394 case V4L2_CID_ROTATE:
1396 struct omapvideo_info *ovid;
1397 int rotation = a->value;
1399 ovid = &vout->vid_info;
1401 mutex_lock(&vout->lock);
1402 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
1403 mutex_unlock(&vout->lock);
1408 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1409 mutex_unlock(&vout->lock);
1414 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
1416 mutex_unlock(&vout->lock);
1421 vout->control[0].value = rotation;
1422 mutex_unlock(&vout->lock);
1425 case V4L2_CID_BG_COLOR:
1427 struct omap_overlay *ovl;
1428 unsigned int color = a->value;
1429 struct omap_overlay_manager_info info;
1431 ovl = vout->vid_info.overlays[0];
1433 mutex_lock(&vout->lock);
1434 if (!ovl->manager || !ovl->manager->get_manager_info) {
1435 mutex_unlock(&vout->lock);
1440 ovl->manager->get_manager_info(ovl->manager, &info);
1441 info.default_color = color;
1442 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
1443 mutex_unlock(&vout->lock);
1448 vout->control[1].value = color;
1449 mutex_unlock(&vout->lock);
1452 case V4L2_CID_VFLIP:
1454 struct omap_overlay *ovl;
1455 struct omapvideo_info *ovid;
1456 unsigned int mirror = a->value;
1458 ovid = &vout->vid_info;
1459 ovl = ovid->overlays[0];
1461 mutex_lock(&vout->lock);
1462 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
1463 mutex_unlock(&vout->lock);
1468 if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1469 mutex_unlock(&vout->lock);
1473 vout->mirror = mirror;
1474 vout->control[2].value = mirror;
1475 mutex_unlock(&vout->lock);
1484 static int vidioc_reqbufs(struct file *file, void *fh,
1485 struct v4l2_requestbuffers *req)
1488 unsigned int i, num_buffers = 0;
1489 struct omap_vout_device *vout = fh;
1490 struct videobuf_queue *q = &vout->vbq;
1492 if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0))
1494 /* if memory is not mmp or userptr
1496 if ((V4L2_MEMORY_MMAP != req->memory) &&
1497 (V4L2_MEMORY_USERPTR != req->memory))
1500 mutex_lock(&vout->lock);
1501 /* Cannot be requested when streaming is on */
1502 if (vout->streaming) {
1507 /* If buffers are already allocated free them */
1508 if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
1509 if (vout->mmap_count) {
1513 num_buffers = (vout->vid == OMAP_VIDEO1) ?
1514 video1_numbuffers : video2_numbuffers;
1515 for (i = num_buffers; i < vout->buffer_allocated; i++) {
1516 omap_vout_free_buffer(vout->buf_virt_addr[i],
1518 vout->buf_virt_addr[i] = 0;
1519 vout->buf_phy_addr[i] = 0;
1521 vout->buffer_allocated = num_buffers;
1522 videobuf_mmap_free(q);
1523 } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
1524 if (vout->buffer_allocated) {
1525 videobuf_mmap_free(q);
1526 for (i = 0; i < vout->buffer_allocated; i++) {
1530 vout->buffer_allocated = 0;
1534 /*store the memory type in data structure */
1535 vout->memory = req->memory;
1537 INIT_LIST_HEAD(&vout->dma_queue);
1539 /* call videobuf_reqbufs api */
1540 ret = videobuf_reqbufs(q, req);
1544 vout->buffer_allocated = req->count;
1547 mutex_unlock(&vout->lock);
1551 static int vidioc_querybuf(struct file *file, void *fh,
1552 struct v4l2_buffer *b)
1554 struct omap_vout_device *vout = fh;
1556 return videobuf_querybuf(&vout->vbq, b);
1559 static int vidioc_qbuf(struct file *file, void *fh,
1560 struct v4l2_buffer *buffer)
1562 struct omap_vout_device *vout = fh;
1563 struct videobuf_queue *q = &vout->vbq;
1565 if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
1566 (buffer->index >= vout->buffer_allocated) ||
1567 (q->bufs[buffer->index]->memory != buffer->memory)) {
1570 if (V4L2_MEMORY_USERPTR == buffer->memory) {
1571 if ((buffer->length < vout->pix.sizeimage) ||
1572 (0 == buffer->m.userptr)) {
1577 if ((is_rotation_enabled(vout)) &&
1578 vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
1579 v4l2_warn(&vout->vid_dev->v4l2_dev,
1580 "DMA Channel not allocated for Rotation\n");
1584 return videobuf_qbuf(q, buffer);
1587 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1589 struct omap_vout_device *vout = fh;
1590 struct videobuf_queue *q = &vout->vbq;
1595 struct videobuf_buffer *vb;
1597 vb = q->bufs[b->index];
1599 if (!vout->streaming)
1602 if (file->f_flags & O_NONBLOCK)
1603 /* Call videobuf_dqbuf for non blocking mode */
1604 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
1606 /* Call videobuf_dqbuf for blocking mode */
1607 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
1609 addr = (unsigned long) vout->buf_phy_addr[vb->i];
1610 size = (unsigned long) vb->size;
1611 dma_unmap_single(vout->vid_dev->v4l2_dev.dev, addr,
1612 size, DMA_TO_DEVICE);
1616 static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1619 u32 addr = 0, mask = 0;
1620 struct omap_vout_device *vout = fh;
1621 struct videobuf_queue *q = &vout->vbq;
1622 struct omapvideo_info *ovid = &vout->vid_info;
1624 mutex_lock(&vout->lock);
1626 if (vout->streaming) {
1631 ret = videobuf_streamon(q);
1635 if (list_empty(&vout->dma_queue)) {
1640 /* Get the next frame from the buffer queue */
1641 vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1642 struct videobuf_buffer, queue);
1643 /* Remove buffer from the buffer queue */
1644 list_del(&vout->cur_frm->queue);
1645 /* Mark state of the current frame to active */
1646 vout->cur_frm->state = VIDEOBUF_ACTIVE;
1647 /* Initialize field_id and started member */
1650 /* set flag here. Next QBUF will start DMA */
1651 vout->streaming = 1;
1653 vout->first_int = 1;
1655 if (omap_vout_calculate_offset(vout)) {
1659 addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i]
1660 + vout->cropped_offset;
1662 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1665 omap_dispc_register_isr(omap_vout_isr, vout, mask);
1667 for (j = 0; j < ovid->num_overlays; j++) {
1668 struct omap_overlay *ovl = ovid->overlays[j];
1670 if (ovl->manager && ovl->manager->device) {
1671 struct omap_overlay_info info;
1672 ovl->get_overlay_info(ovl, &info);
1675 if (ovl->set_overlay_info(ovl, &info)) {
1682 /* First save the configuration in ovelray structure */
1683 ret = omapvid_init(vout, addr);
1685 v4l2_err(&vout->vid_dev->v4l2_dev,
1686 "failed to set overlay info\n");
1687 /* Enable the pipeline and set the Go bit */
1688 ret = omapvid_apply_changes(vout);
1690 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1696 ret = videobuf_streamoff(q);
1698 mutex_unlock(&vout->lock);
1702 static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1706 struct omap_vout_device *vout = fh;
1707 struct omapvideo_info *ovid = &vout->vid_info;
1709 if (!vout->streaming)
1712 vout->streaming = 0;
1713 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1716 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1718 for (j = 0; j < ovid->num_overlays; j++) {
1719 struct omap_overlay *ovl = ovid->overlays[j];
1721 if (ovl->manager && ovl->manager->device) {
1722 struct omap_overlay_info info;
1724 ovl->get_overlay_info(ovl, &info);
1726 ret = ovl->set_overlay_info(ovl, &info);
1728 v4l2_err(&vout->vid_dev->v4l2_dev,
1729 "failed to update overlay info in streamoff\n");
1733 /* Turn of the pipeline */
1734 ret = omapvid_apply_changes(vout);
1736 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in"
1739 INIT_LIST_HEAD(&vout->dma_queue);
1740 ret = videobuf_streamoff(&vout->vbq);
1745 static int vidioc_s_fbuf(struct file *file, void *fh,
1746 struct v4l2_framebuffer *a)
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;
1755 ovid = &vout->vid_info;
1756 ovl = ovid->overlays[0];
1758 /* OMAP DSS doesn't support Source and Destination color
1760 if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
1761 (a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
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))
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;
1773 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
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;
1779 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_CHROMAKEY;
1781 if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
1782 V4L2_FBUF_FLAG_SRC_CHROMAKEY))
1786 if (ovl->manager && ovl->manager->get_manager_info &&
1787 ovl->manager->set_manager_info) {
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;
1794 if (ovl->manager->set_manager_info(ovl->manager, &info))
1797 if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
1798 vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1801 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
1804 if (ovl->manager && ovl->manager->get_manager_info &&
1805 ovl->manager->set_manager_info) {
1806 ovl->manager->get_manager_info(ovl->manager, &info);
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;
1810 if (ovl->manager->set_manager_info(ovl->manager, &info))
1817 static int vidioc_g_fbuf(struct file *file, void *fh,
1818 struct v4l2_framebuffer *a)
1820 struct omap_overlay *ovl;
1821 struct omapvideo_info *ovid;
1822 struct omap_vout_device *vout = fh;
1823 struct omap_overlay_manager_info info;
1825 ovid = &vout->vid_info;
1826 ovl = ovid->overlays[0];
1828 /* The video overlay must stay within the framebuffer and can't be
1829 positioned independently. */
1830 a->flags = V4L2_FBUF_FLAG_OVERLAY;
1831 a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY
1832 | V4L2_FBUF_CAP_SRC_CHROMAKEY;
1834 if (ovl->manager && ovl->manager->get_manager_info) {
1835 ovl->manager->get_manager_info(ovl->manager, &info);
1836 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
1837 a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1838 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
1839 a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1841 if (ovl->manager && ovl->manager->get_manager_info) {
1842 ovl->manager->get_manager_info(ovl->manager, &info);
1843 if (info.partial_alpha_enabled)
1844 a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1850 static const struct v4l2_ioctl_ops vout_ioctl_ops = {
1851 .vidioc_querycap = vidioc_querycap,
1852 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
1853 .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out,
1854 .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
1855 .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
1856 .vidioc_queryctrl = vidioc_queryctrl,
1857 .vidioc_g_ctrl = vidioc_g_ctrl,
1858 .vidioc_s_fbuf = vidioc_s_fbuf,
1859 .vidioc_g_fbuf = vidioc_g_fbuf,
1860 .vidioc_s_ctrl = vidioc_s_ctrl,
1861 .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay,
1862 .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay,
1863 .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay,
1864 .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay,
1865 .vidioc_cropcap = vidioc_cropcap,
1866 .vidioc_g_crop = vidioc_g_crop,
1867 .vidioc_s_crop = vidioc_s_crop,
1868 .vidioc_reqbufs = vidioc_reqbufs,
1869 .vidioc_querybuf = vidioc_querybuf,
1870 .vidioc_qbuf = vidioc_qbuf,
1871 .vidioc_dqbuf = vidioc_dqbuf,
1872 .vidioc_streamon = vidioc_streamon,
1873 .vidioc_streamoff = vidioc_streamoff,
1876 static const struct v4l2_file_operations omap_vout_fops = {
1877 .owner = THIS_MODULE,
1878 .poll = omap_vout_poll,
1879 .unlocked_ioctl = video_ioctl2,
1880 .mmap = omap_vout_mmap,
1881 .open = omap_vout_open,
1882 .release = omap_vout_release,
1885 /* Init functions used during driver initialization */
1886 /* Initial setup of video_data */
1887 static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
1889 struct video_device *vfd;
1890 struct v4l2_pix_format *pix;
1891 struct v4l2_control *control;
1892 struct omap_dss_device *display =
1893 vout->vid_info.overlays[0]->manager->device;
1895 /* set the default pix */
1898 /* Set the default picture of QVGA */
1899 pix->width = QQVGA_WIDTH;
1900 pix->height = QQVGA_HEIGHT;
1902 /* Default pixel format is RGB 5-6-5 */
1903 pix->pixelformat = V4L2_PIX_FMT_RGB565;
1904 pix->field = V4L2_FIELD_ANY;
1905 pix->bytesperline = pix->width * 2;
1906 pix->sizeimage = pix->bytesperline * pix->height;
1908 pix->colorspace = V4L2_COLORSPACE_JPEG;
1910 vout->bpp = RGB565_BPP;
1911 vout->fbuf.fmt.width = display->panel.timings.x_res;
1912 vout->fbuf.fmt.height = display->panel.timings.y_res;
1914 /* Set the data structures for the overlay parameters*/
1915 vout->win.global_alpha = 255;
1916 vout->fbuf.flags = 0;
1917 vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
1918 V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY;
1919 vout->win.chromakey = 0;
1921 omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
1923 /*Initialize the control variables for
1924 rotation, flipping and background color. */
1925 control = vout->control;
1926 control[0].id = V4L2_CID_ROTATE;
1927 control[0].value = 0;
1930 vout->control[2].id = V4L2_CID_HFLIP;
1931 vout->control[2].value = 0;
1932 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
1935 control[1].id = V4L2_CID_BG_COLOR;
1936 control[1].value = 0;
1938 /* initialize the video_device struct */
1939 vfd = vout->vfd = video_device_alloc();
1942 printk(KERN_ERR VOUT_NAME ": could not allocate"
1943 " video device struct\n");
1946 vfd->release = video_device_release;
1947 vfd->ioctl_ops = &vout_ioctl_ops;
1949 strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
1951 vfd->fops = &omap_vout_fops;
1952 vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
1953 mutex_init(&vout->lock);
1960 /* Setup video buffers */
1961 static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
1966 struct omapvideo_info *ovid;
1967 struct omap_vout_device *vout;
1968 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1969 struct omap2video_device *vid_dev =
1970 container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
1972 vout = vid_dev->vouts[vid_num];
1973 ovid = &vout->vid_info;
1975 numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers;
1976 vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize;
1977 dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size);
1979 for (i = 0; i < numbuffers; i++) {
1980 vout->buf_virt_addr[i] =
1981 omap_vout_alloc_buffer(vout->buffer_size,
1982 (u32 *) &vout->buf_phy_addr[i]);
1983 if (!vout->buf_virt_addr[i]) {
1990 vout->cropped_offset = 0;
1992 if (ovid->rotation_type == VOUT_ROT_VRFB) {
1993 int static_vrfb_allocation = (vid_num == 0) ?
1994 vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
1995 ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
1996 static_vrfb_allocation);
2002 for (i = 0; i < numbuffers; i++) {
2003 omap_vout_free_buffer(vout->buf_virt_addr[i],
2005 vout->buf_virt_addr[i] = 0;
2006 vout->buf_phy_addr[i] = 0;
2012 /* Create video out devices */
2013 static int __init omap_vout_create_video_devices(struct platform_device *pdev)
2016 struct omap_vout_device *vout;
2017 struct video_device *vfd = NULL;
2018 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2019 struct omap2video_device *vid_dev = container_of(v4l2_dev,
2020 struct omap2video_device, v4l2_dev);
2022 for (k = 0; k < pdev->num_resources; k++) {
2024 vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
2026 dev_err(&pdev->dev, ": could not allocate memory\n");
2031 vid_dev->vouts[k] = vout;
2032 vout->vid_dev = vid_dev;
2033 /* Select video2 if only 1 overlay is controlled by V4L2 */
2034 if (pdev->num_resources == 1)
2035 vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
2037 /* Else select video1 and video2 one by one. */
2038 vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
2039 vout->vid_info.num_overlays = 1;
2040 vout->vid_info.id = k + 1;
2042 /* Set VRFB as rotation_type for omap2 and omap3 */
2043 if (cpu_is_omap24xx() || cpu_is_omap34xx())
2044 vout->vid_info.rotation_type = VOUT_ROT_VRFB;
2046 /* Setup the default configuration for the video devices
2048 if (omap_vout_setup_video_data(vout) != 0) {
2053 /* Allocate default number of buffers for the video streaming
2054 * and reserve the VRFB space for rotation
2056 if (omap_vout_setup_video_bufs(pdev, k) != 0) {
2061 /* Register the Video device with V4L2
2064 if (video_register_device(vfd, VFL_TYPE_GRABBER, -1) < 0) {
2065 dev_err(&pdev->dev, ": Could not register "
2066 "Video for Linux device\n");
2071 video_set_drvdata(vfd, vout);
2073 /* Configure the overlay structure */
2074 ret = omapvid_init(vid_dev->vouts[k], 0);
2079 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
2080 omap_vout_release_vrfb(vout);
2081 omap_vout_free_buffers(vout);
2083 video_device_release(vfd);
2089 dev_info(&pdev->dev, ": registered and initialized"
2090 " video device %d\n", vfd->minor);
2091 if (k == (pdev->num_resources - 1))
2097 /* Driver functions */
2098 static void omap_vout_cleanup_device(struct omap_vout_device *vout)
2100 struct video_device *vfd;
2101 struct omapvideo_info *ovid;
2107 ovid = &vout->vid_info;
2109 if (!video_is_registered(vfd)) {
2111 * The device was never registered, so release the
2112 * video_device struct directly.
2114 video_device_release(vfd);
2117 * The unregister function will release the video_device
2118 * struct as well as unregistering it.
2120 video_unregister_device(vfd);
2123 if (ovid->rotation_type == VOUT_ROT_VRFB) {
2124 omap_vout_release_vrfb(vout);
2125 /* Free the VRFB buffer if allocated
2128 if (vout->vrfb_static_allocation)
2129 omap_vout_free_vrfb_buffers(vout);
2131 omap_vout_free_buffers(vout);
2136 static int omap_vout_remove(struct platform_device *pdev)
2139 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2140 struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
2141 omap2video_device, v4l2_dev);
2143 v4l2_device_unregister(v4l2_dev);
2144 for (k = 0; k < pdev->num_resources; k++)
2145 omap_vout_cleanup_device(vid_dev->vouts[k]);
2147 for (k = 0; k < vid_dev->num_displays; k++) {
2148 if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
2149 vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
2151 omap_dss_put_device(vid_dev->displays[k]);
2157 static int __init omap_vout_probe(struct platform_device *pdev)
2160 struct omap_overlay *ovl;
2161 struct omap_dss_device *dssdev = NULL;
2162 struct omap_dss_device *def_display;
2163 struct omap2video_device *vid_dev = NULL;
2165 if (pdev->num_resources == 0) {
2166 dev_err(&pdev->dev, "probed for an unknown device\n");
2170 vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
2171 if (vid_dev == NULL)
2174 vid_dev->num_displays = 0;
2175 for_each_dss_dev(dssdev) {
2176 omap_dss_get_device(dssdev);
2178 if (!dssdev->driver) {
2179 dev_warn(&pdev->dev, "no driver for display: %s\n",
2181 omap_dss_put_device(dssdev);
2185 vid_dev->displays[vid_dev->num_displays++] = dssdev;
2188 if (vid_dev->num_displays == 0) {
2189 dev_err(&pdev->dev, "no displays\n");
2194 vid_dev->num_overlays = omap_dss_get_num_overlays();
2195 for (i = 0; i < vid_dev->num_overlays; i++)
2196 vid_dev->overlays[i] = omap_dss_get_overlay(i);
2198 vid_dev->num_managers = omap_dss_get_num_overlay_managers();
2199 for (i = 0; i < vid_dev->num_managers; i++)
2200 vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
2202 /* Get the Video1 overlay and video2 overlay.
2203 * Setup the Display attached to that overlays
2205 for (i = 1; i < vid_dev->num_overlays; i++) {
2206 ovl = omap_dss_get_overlay(i);
2207 if (ovl->manager && ovl->manager->device) {
2208 def_display = ovl->manager->device;
2210 dev_warn(&pdev->dev, "cannot find display\n");
2214 struct omap_dss_driver *dssdrv = def_display->driver;
2216 ret = dssdrv->enable(def_display);
2218 /* Here we are not considering a error
2219 * as display may be enabled by frame
2222 dev_warn(&pdev->dev,
2223 "'%s' Display already enabled\n",
2229 if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
2230 dev_err(&pdev->dev, "v4l2_device_register failed\n");
2235 ret = omap_vout_create_video_devices(pdev);
2239 for (i = 0; i < vid_dev->num_displays; i++) {
2240 struct omap_dss_device *display = vid_dev->displays[i];
2242 if (display->driver->update)
2243 display->driver->update(display, 0, 0,
2244 display->panel.timings.x_res,
2245 display->panel.timings.y_res);
2250 v4l2_device_unregister(&vid_dev->v4l2_dev);
2252 for (i = 1; i < vid_dev->num_overlays; i++) {
2254 ovl = omap_dss_get_overlay(i);
2255 if (ovl->manager && ovl->manager->device)
2256 def_display = ovl->manager->device;
2258 if (def_display && def_display->driver)
2259 def_display->driver->disable(def_display);
2266 static struct platform_driver omap_vout_driver = {
2270 .remove = omap_vout_remove,
2273 static int __init omap_vout_init(void)
2275 if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) {
2276 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
2282 static void omap_vout_cleanup(void)
2284 platform_driver_unregister(&omap_vout_driver);
2287 late_initcall(omap_vout_init);
2288 module_exit(omap_vout_cleanup);