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>
47 #include <video/omapvrfb.h>
48 #include <video/omapdss.h>
50 #include "omap_voutlib.h"
51 #include "omap_voutdef.h"
52 #include "omap_vout_vrfb.h"
54 MODULE_AUTHOR("Texas Instruments");
55 MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
56 MODULE_LICENSE("GPL");
58 /* Driver Configuration macros */
59 #define VOUT_NAME "omap_vout"
61 enum omap_vout_channels {
66 static struct videobuf_queue_ops video_vbq_ops;
67 /* Variables configurable through module params*/
68 static u32 video1_numbuffers = 3;
69 static u32 video2_numbuffers = 3;
70 static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
71 static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
72 static bool vid1_static_vrfb_alloc;
73 static bool vid2_static_vrfb_alloc;
76 /* Module parameters */
77 module_param(video1_numbuffers, uint, S_IRUGO);
78 MODULE_PARM_DESC(video1_numbuffers,
79 "Number of buffers to be allocated at init time for Video1 device.");
81 module_param(video2_numbuffers, uint, S_IRUGO);
82 MODULE_PARM_DESC(video2_numbuffers,
83 "Number of buffers to be allocated at init time for Video2 device.");
85 module_param(video1_bufsize, uint, S_IRUGO);
86 MODULE_PARM_DESC(video1_bufsize,
87 "Size of the buffer to be allocated for video1 device");
89 module_param(video2_bufsize, uint, S_IRUGO);
90 MODULE_PARM_DESC(video2_bufsize,
91 "Size of the buffer to be allocated for video2 device");
93 module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
94 MODULE_PARM_DESC(vid1_static_vrfb_alloc,
95 "Static allocation of the VRFB buffer for video1 device");
97 module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
98 MODULE_PARM_DESC(vid2_static_vrfb_alloc,
99 "Static allocation of the VRFB buffer for video2 device");
101 module_param(debug, bool, S_IRUGO);
102 MODULE_PARM_DESC(debug, "Debug level (0-1)");
104 /* list of image formats supported by OMAP2 video pipelines */
105 static const struct v4l2_fmtdesc omap_formats[] = {
107 /* Note: V4L2 defines RGB565 as:
110 * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3
112 * We interpret RGB565 as:
115 * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
117 .description = "RGB565, le",
118 .pixelformat = V4L2_PIX_FMT_RGB565,
121 /* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use
122 * this for RGB24 unpack mode, the last 8 bits are ignored
124 .description = "RGB32, le",
125 .pixelformat = V4L2_PIX_FMT_RGB32,
128 /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use
129 * this for RGB24 packed mode
132 .description = "RGB24, le",
133 .pixelformat = V4L2_PIX_FMT_RGB24,
136 .description = "YUYV (YUV 4:2:2), packed",
137 .pixelformat = V4L2_PIX_FMT_YUYV,
140 .description = "UYVY, packed",
141 .pixelformat = V4L2_PIX_FMT_UYVY,
145 #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
150 static int omap_vout_try_format(struct v4l2_pix_format *pix)
154 pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT,
155 (u32)VID_MAX_HEIGHT);
156 pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH);
158 for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
159 if (pix->pixelformat == omap_formats[ifmt].pixelformat)
163 if (ifmt == NUM_OUTPUT_FORMATS)
166 pix->pixelformat = omap_formats[ifmt].pixelformat;
167 pix->field = V4L2_FIELD_ANY;
169 switch (pix->pixelformat) {
170 case V4L2_PIX_FMT_YUYV:
171 case V4L2_PIX_FMT_UYVY:
173 pix->colorspace = V4L2_COLORSPACE_JPEG;
176 case V4L2_PIX_FMT_RGB565:
177 case V4L2_PIX_FMT_RGB565X:
178 pix->colorspace = V4L2_COLORSPACE_SRGB;
181 case V4L2_PIX_FMT_RGB24:
182 pix->colorspace = V4L2_COLORSPACE_SRGB;
185 case V4L2_PIX_FMT_RGB32:
186 case V4L2_PIX_FMT_BGR32:
187 pix->colorspace = V4L2_COLORSPACE_SRGB;
191 pix->bytesperline = pix->width * bpp;
192 pix->sizeimage = pix->bytesperline * pix->height;
198 * omap_vout_uservirt_to_phys: This inline function is used to convert user
199 * space virtual address to physical address.
201 static unsigned long omap_vout_uservirt_to_phys(unsigned long virtp)
203 unsigned long physp = 0;
204 struct vm_area_struct *vma;
205 struct mm_struct *mm = current->mm;
207 /* For kernel direct-mapped memory, take the easy way */
208 if (virtp >= PAGE_OFFSET)
209 return virt_to_phys((void *) virtp);
211 down_read(¤t->mm->mmap_sem);
212 vma = find_vma(mm, virtp);
213 if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) {
214 /* this will catch, kernel-allocated, mmaped-to-usermode
216 physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start);
217 up_read(¤t->mm->mmap_sem);
219 /* otherwise, use get_user_pages() for general userland pages */
220 int res, nr_pages = 1;
223 res = get_user_pages(current, current->mm, virtp, nr_pages, 1,
225 up_read(¤t->mm->mmap_sem);
227 if (res == nr_pages) {
228 physp = __pa(page_address(&pages[0]) +
229 (virtp & ~PAGE_MASK));
231 printk(KERN_WARNING VOUT_NAME
232 "get_user_pages failed\n");
241 * Free the V4L2 buffers
243 void omap_vout_free_buffers(struct omap_vout_device *vout)
247 /* Allocate memory for the buffers */
248 numbuffers = (vout->vid) ? video2_numbuffers : video1_numbuffers;
249 vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize;
251 for (i = 0; i < numbuffers; i++) {
252 omap_vout_free_buffer(vout->buf_virt_addr[i],
254 vout->buf_phy_addr[i] = 0;
255 vout->buf_virt_addr[i] = 0;
260 * Convert V4L2 rotation to DSS rotation
261 * V4L2 understand 0, 90, 180, 270.
262 * Convert to 0, 1, 2 and 3 respectively for DSS
264 static int v4l2_rot_to_dss_rot(int v4l2_rotation,
265 enum dss_rotation *rotation, bool mirror)
269 switch (v4l2_rotation) {
271 *rotation = dss_rotation_90_degree;
274 *rotation = dss_rotation_180_degree;
277 *rotation = dss_rotation_270_degree;
280 *rotation = dss_rotation_0_degree;
288 static int omap_vout_calculate_offset(struct omap_vout_device *vout)
290 struct omapvideo_info *ovid;
291 struct v4l2_rect *crop = &vout->crop;
292 struct v4l2_pix_format *pix = &vout->pix;
293 int *cropped_offset = &vout->cropped_offset;
294 int ps = 2, line_length = 0;
296 ovid = &vout->vid_info;
298 if (ovid->rotation_type == VOUT_ROT_VRFB) {
299 omap_vout_calculate_vrfb_offset(vout);
301 vout->line_length = line_length = pix->width;
303 if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
304 V4L2_PIX_FMT_UYVY == pix->pixelformat)
306 else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
308 else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
313 *cropped_offset = (line_length * ps) *
314 crop->top + crop->left * ps;
317 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
318 __func__, vout->cropped_offset);
324 * Convert V4L2 pixel format to DSS pixel format
326 static int video_mode_to_dss_mode(struct omap_vout_device *vout)
328 struct omap_overlay *ovl;
329 struct omapvideo_info *ovid;
330 struct v4l2_pix_format *pix = &vout->pix;
331 enum omap_color_mode mode;
333 ovid = &vout->vid_info;
334 ovl = ovid->overlays[0];
336 switch (pix->pixelformat) {
337 case V4L2_PIX_FMT_YUYV:
338 mode = OMAP_DSS_COLOR_YUV2;
340 case V4L2_PIX_FMT_UYVY:
341 mode = OMAP_DSS_COLOR_UYVY;
343 case V4L2_PIX_FMT_RGB565:
344 mode = OMAP_DSS_COLOR_RGB16;
346 case V4L2_PIX_FMT_RGB24:
347 mode = OMAP_DSS_COLOR_RGB24P;
349 case V4L2_PIX_FMT_RGB32:
350 mode = (ovl->id == OMAP_DSS_VIDEO1) ?
351 OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
353 case V4L2_PIX_FMT_BGR32:
354 mode = OMAP_DSS_COLOR_RGBX32;
366 static int omapvid_setup_overlay(struct omap_vout_device *vout,
367 struct omap_overlay *ovl, int posx, int posy, int outw,
371 struct omap_overlay_info info;
372 int cropheight, cropwidth, pixwidth;
374 if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
375 (outw != vout->pix.width || outh != vout->pix.height)) {
380 vout->dss_mode = video_mode_to_dss_mode(vout);
381 if (vout->dss_mode == -EINVAL) {
386 /* Setup the input plane parameters according to
387 * rotation value selected.
389 if (is_rotation_90_or_270(vout)) {
390 cropheight = vout->crop.width;
391 cropwidth = vout->crop.height;
392 pixwidth = vout->pix.height;
394 cropheight = vout->crop.height;
395 cropwidth = vout->crop.width;
396 pixwidth = vout->pix.width;
399 ovl->get_overlay_info(ovl, &info);
401 info.width = cropwidth;
402 info.height = cropheight;
403 info.color_mode = vout->dss_mode;
404 info.mirror = vout->mirror;
407 info.out_width = outw;
408 info.out_height = outh;
409 info.global_alpha = vout->win.global_alpha;
410 if (!is_rotation_enabled(vout)) {
412 info.rotation_type = OMAP_DSS_ROT_DMA;
413 info.screen_width = pixwidth;
415 info.rotation = vout->rotation;
416 info.rotation_type = OMAP_DSS_ROT_VRFB;
417 info.screen_width = 2048;
420 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
421 "%s enable=%d addr=%pad width=%d\n height=%d color_mode=%d\n"
422 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
423 "out_height=%d rotation_type=%d screen_width=%d\n",
424 __func__, ovl->is_enabled(ovl), &info.paddr, info.width, info.height,
425 info.color_mode, info.rotation, info.mirror, info.pos_x,
426 info.pos_y, info.out_width, info.out_height, info.rotation_type,
429 ret = ovl->set_overlay_info(ovl, &info);
436 v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
441 * Initialize the overlay structure
443 static int omapvid_init(struct omap_vout_device *vout, u32 addr)
446 struct v4l2_window *win;
447 struct omap_overlay *ovl;
448 int posx, posy, outw, outh;
449 struct omap_video_timings *timing;
450 struct omapvideo_info *ovid = &vout->vid_info;
453 for (i = 0; i < ovid->num_overlays; i++) {
454 struct omap_dss_device *dssdev;
456 ovl = ovid->overlays[i];
457 dssdev = ovl->get_device(ovl);
462 timing = &dssdev->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
472 posy = (timing->y_res - win->w.width) - win->w.left;
476 case dss_rotation_180_degree:
477 posx = (timing->x_res - win->w.width) - win->w.left;
478 posy = (timing->y_res - win->w.height) - win->w.top;
481 case dss_rotation_270_degree:
484 posx = (timing->x_res - win->w.height) - win->w.top;
493 ret = omapvid_setup_overlay(vout, ovl, posx, posy,
496 goto omapvid_init_err;
501 v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
506 * Apply the changes set the go bit of DSS
508 static int omapvid_apply_changes(struct omap_vout_device *vout)
511 struct omap_overlay *ovl;
512 struct omapvideo_info *ovid = &vout->vid_info;
514 for (i = 0; i < ovid->num_overlays; i++) {
515 struct omap_dss_device *dssdev;
517 ovl = ovid->overlays[i];
518 dssdev = ovl->get_device(ovl);
521 ovl->manager->apply(ovl->manager);
527 static int omapvid_handle_interlace_display(struct omap_vout_device *vout,
528 unsigned int irqstatus, struct timeval timevalue)
532 if (vout->first_int) {
537 if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
539 else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
545 if (fid != vout->field_id) {
547 vout->field_id = fid;
548 } else if (0 == fid) {
549 if (vout->cur_frm == vout->next_frm)
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;
557 if (list_empty(&vout->dma_queue) ||
558 (vout->cur_frm != vout->next_frm))
562 return vout->field_id;
567 static void omap_vout_isr(void *arg, unsigned int irqstatus)
569 int ret, fid, mgr_id;
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;
577 if (!vout->streaming)
580 ovid = &vout->vid_info;
581 ovl = ovid->overlays[0];
583 mgr_id = ovl->manager->id;
585 /* get the display device attached to the overlay */
586 cur_display = ovl->get_device(ovl);
591 spin_lock(&vout->vbq_lock);
592 v4l2_get_timestamp(&timevalue);
594 switch (cur_display->type) {
595 case OMAP_DISPLAY_TYPE_DSI:
596 case OMAP_DISPLAY_TYPE_DPI:
597 case OMAP_DISPLAY_TYPE_DVI:
598 if (mgr_id == OMAP_DSS_CHANNEL_LCD)
599 irq = DISPC_IRQ_VSYNC;
600 else if (mgr_id == OMAP_DSS_CHANNEL_LCD2)
601 irq = DISPC_IRQ_VSYNC2;
605 if (!(irqstatus & irq))
608 case OMAP_DISPLAY_TYPE_VENC:
609 fid = omapvid_handle_interlace_display(vout, irqstatus,
614 case OMAP_DISPLAY_TYPE_HDMI:
615 if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
622 if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
623 vout->cur_frm->ts = timevalue;
624 vout->cur_frm->state = VIDEOBUF_DONE;
625 wake_up_interruptible(&vout->cur_frm->done);
626 vout->cur_frm = vout->next_frm;
630 if (list_empty(&vout->dma_queue))
633 vout->next_frm = list_entry(vout->dma_queue.next,
634 struct videobuf_buffer, queue);
635 list_del(&vout->next_frm->queue);
637 vout->next_frm->state = VIDEOBUF_ACTIVE;
639 addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i]
640 + vout->cropped_offset;
642 /* First save the configuration in ovelray structure */
643 ret = omapvid_init(vout, addr);
645 printk(KERN_ERR VOUT_NAME
646 "failed to set overlay info\n");
650 /* Enable the pipeline and set the Go bit */
651 ret = omapvid_apply_changes(vout);
653 printk(KERN_ERR VOUT_NAME "failed to change mode\n");
656 spin_unlock(&vout->vbq_lock);
659 /* Video buffer call backs */
662 * Buffer setup function is called by videobuf layer when REQBUF ioctl is
663 * called. This is used to setup buffers and return size and count of
664 * buffers allocated. After the call to this buffer, videobuf layer will
665 * setup buffer queue depending on the size and count of buffers
667 static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
670 int startindex = 0, i, j;
671 u32 phy_addr = 0, virt_addr = 0;
672 struct omap_vout_device *vout = q->priv_data;
673 struct omapvideo_info *ovid = &vout->vid_info;
674 int vid_max_buf_size;
679 vid_max_buf_size = vout->vid == OMAP_VIDEO1 ? video1_bufsize :
682 if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
685 startindex = (vout->vid == OMAP_VIDEO1) ?
686 video1_numbuffers : video2_numbuffers;
687 if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
690 if (ovid->rotation_type == VOUT_ROT_VRFB) {
691 if (omap_vout_vrfb_buffer_setup(vout, count, startindex))
695 if (V4L2_MEMORY_MMAP != vout->memory)
698 /* Now allocated the V4L2 buffers */
699 *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp);
700 startindex = (vout->vid == OMAP_VIDEO1) ?
701 video1_numbuffers : video2_numbuffers;
703 /* Check the size of the buffer */
704 if (*size > vid_max_buf_size) {
705 v4l2_err(&vout->vid_dev->v4l2_dev,
706 "buffer allocation mismatch [%u] [%u]\n",
707 *size, vout->buffer_size);
711 for (i = startindex; i < *count; i++) {
712 vout->buffer_size = *size;
714 virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
717 if (ovid->rotation_type == VOUT_ROT_NONE) {
720 if (!is_rotation_enabled(vout))
722 /* Free the VRFB buffers if no space for V4L2 buffers */
723 for (j = i; j < *count; j++) {
724 omap_vout_free_buffer(
725 vout->smsshado_virt_addr[j],
726 vout->smsshado_size);
727 vout->smsshado_virt_addr[j] = 0;
728 vout->smsshado_phy_addr[j] = 0;
732 vout->buf_virt_addr[i] = virt_addr;
733 vout->buf_phy_addr[i] = phy_addr;
735 *count = vout->buffer_allocated = i;
741 * Free the V4L2 buffers additionally allocated than default
744 static void omap_vout_free_extra_buffers(struct omap_vout_device *vout)
746 int num_buffers = 0, i;
748 num_buffers = (vout->vid == OMAP_VIDEO1) ?
749 video1_numbuffers : video2_numbuffers;
751 for (i = num_buffers; i < vout->buffer_allocated; i++) {
752 if (vout->buf_virt_addr[i])
753 omap_vout_free_buffer(vout->buf_virt_addr[i],
756 vout->buf_virt_addr[i] = 0;
757 vout->buf_phy_addr[i] = 0;
759 vout->buffer_allocated = num_buffers;
763 * This function will be called when VIDIOC_QBUF ioctl is called.
764 * It prepare buffers before give out for the display. This function
765 * converts user space virtual address into physical address if userptr memory
766 * exchange mechanism is used. If rotation is enabled, it copies entire
767 * buffer into VRFB memory space before giving it to the DSS.
769 static int omap_vout_buffer_prepare(struct videobuf_queue *q,
770 struct videobuf_buffer *vb,
771 enum v4l2_field field)
773 struct omap_vout_device *vout = q->priv_data;
774 struct omapvideo_info *ovid = &vout->vid_info;
776 if (VIDEOBUF_NEEDS_INIT == vb->state) {
777 vb->width = vout->pix.width;
778 vb->height = vout->pix.height;
779 vb->size = vb->width * vb->height * vout->bpp;
782 vb->state = VIDEOBUF_PREPARED;
783 /* if user pointer memory mechanism is used, get the physical
784 * address of the buffer
786 if (V4L2_MEMORY_USERPTR == vb->memory) {
789 /* Physical address */
790 vout->queued_buf_addr[vb->i] = (u8 *)
791 omap_vout_uservirt_to_phys(vb->baddr);
793 unsigned long addr, dma_addr;
796 addr = (unsigned long) vout->buf_virt_addr[vb->i];
797 size = (unsigned long) vb->size;
799 dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr,
800 size, DMA_TO_DEVICE);
801 if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr))
802 v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n");
804 vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i];
807 if (ovid->rotation_type == VOUT_ROT_VRFB)
808 return omap_vout_prepare_vrfb(vout, vb);
814 * Buffer queue function will be called from the videobuf layer when _QBUF
815 * ioctl is called. It is used to enqueue buffer, which is ready to be
818 static void omap_vout_buffer_queue(struct videobuf_queue *q,
819 struct videobuf_buffer *vb)
821 struct omap_vout_device *vout = q->priv_data;
823 /* Driver is also maintainig a queue. So enqueue buffer in the driver
825 list_add_tail(&vb->queue, &vout->dma_queue);
827 vb->state = VIDEOBUF_QUEUED;
831 * Buffer release function is called from videobuf layer to release buffer
832 * which are already allocated
834 static void omap_vout_buffer_release(struct videobuf_queue *q,
835 struct videobuf_buffer *vb)
837 struct omap_vout_device *vout = q->priv_data;
839 vb->state = VIDEOBUF_NEEDS_INIT;
841 if (V4L2_MEMORY_MMAP != vout->memory)
848 static unsigned int omap_vout_poll(struct file *file,
849 struct poll_table_struct *wait)
851 struct omap_vout_device *vout = file->private_data;
852 struct videobuf_queue *q = &vout->vbq;
854 return videobuf_poll_stream(file, q, wait);
857 static void omap_vout_vm_open(struct vm_area_struct *vma)
859 struct omap_vout_device *vout = vma->vm_private_data;
861 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
862 "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
866 static void omap_vout_vm_close(struct vm_area_struct *vma)
868 struct omap_vout_device *vout = vma->vm_private_data;
870 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
871 "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
875 static struct vm_operations_struct omap_vout_vm_ops = {
876 .open = omap_vout_vm_open,
877 .close = omap_vout_vm_close,
880 static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
884 unsigned long start = vma->vm_start;
885 unsigned long size = (vma->vm_end - vma->vm_start);
886 struct omap_vout_device *vout = file->private_data;
887 struct videobuf_queue *q = &vout->vbq;
889 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
890 " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__,
891 vma->vm_pgoff, vma->vm_start, vma->vm_end);
893 /* look for the buffer to map */
894 for (i = 0; i < VIDEO_MAX_FRAME; i++) {
895 if (NULL == q->bufs[i])
897 if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
899 if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
903 if (VIDEO_MAX_FRAME == i) {
904 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
905 "offset invalid [offset=0x%lx]\n",
906 (vma->vm_pgoff << PAGE_SHIFT));
909 /* Check the size of the buffer */
910 if (size > vout->buffer_size) {
911 v4l2_err(&vout->vid_dev->v4l2_dev,
912 "insufficient memory [%lu] [%u]\n",
913 size, vout->buffer_size);
917 q->bufs[i]->baddr = vma->vm_start;
919 vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
920 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
921 vma->vm_ops = &omap_vout_vm_ops;
922 vma->vm_private_data = (void *) vout;
923 pos = (void *)vout->buf_virt_addr[i];
924 vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT;
927 pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
928 if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
935 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
940 static int omap_vout_release(struct file *file)
943 struct videobuf_queue *q;
944 struct omapvideo_info *ovid;
945 struct omap_vout_device *vout = file->private_data;
947 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
948 ovid = &vout->vid_info;
954 /* Disable all the overlay managers connected with this interface */
955 for (i = 0; i < ovid->num_overlays; i++) {
956 struct omap_overlay *ovl = ovid->overlays[i];
957 struct omap_dss_device *dssdev = ovl->get_device(ovl);
962 /* Turn off the pipeline */
963 ret = omapvid_apply_changes(vout);
965 v4l2_warn(&vout->vid_dev->v4l2_dev,
966 "Unable to apply changes\n");
968 /* Free all buffers */
969 omap_vout_free_extra_buffers(vout);
971 /* Free the VRFB buffers only if they are allocated
972 * during reqbufs. Don't free if init time allocated
974 if (ovid->rotation_type == VOUT_ROT_VRFB) {
975 if (!vout->vrfb_static_allocation)
976 omap_vout_free_vrfb_buffers(vout);
978 videobuf_mmap_free(q);
980 /* Even if apply changes fails we should continue
981 freeing allocated memory */
982 if (vout->streaming) {
985 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN |
986 DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2;
987 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
988 vout->streaming = false;
990 videobuf_streamoff(q);
991 videobuf_queue_cancel(q);
994 if (vout->mmap_count != 0)
995 vout->mmap_count = 0;
998 file->private_data = NULL;
1000 if (vout->buffer_allocated)
1001 videobuf_mmap_free(q);
1003 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1007 static int omap_vout_open(struct file *file)
1009 struct videobuf_queue *q;
1010 struct omap_vout_device *vout = NULL;
1012 vout = video_drvdata(file);
1013 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
1018 /* for now, we only support single open */
1024 file->private_data = vout;
1025 vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1028 video_vbq_ops.buf_setup = omap_vout_buffer_setup;
1029 video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
1030 video_vbq_ops.buf_release = omap_vout_buffer_release;
1031 video_vbq_ops.buf_queue = omap_vout_buffer_queue;
1032 spin_lock_init(&vout->vbq_lock);
1034 videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
1035 &vout->vbq_lock, vout->type, V4L2_FIELD_NONE,
1036 sizeof(struct videobuf_buffer), vout, NULL);
1038 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__);
1045 static int vidioc_querycap(struct file *file, void *fh,
1046 struct v4l2_capability *cap)
1048 struct omap_vout_device *vout = fh;
1050 strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
1051 strlcpy(cap->card, vout->vfd->name, sizeof(cap->card));
1052 cap->bus_info[0] = '\0';
1053 cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
1054 V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
1055 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1060 static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
1061 struct v4l2_fmtdesc *fmt)
1063 int index = fmt->index;
1065 if (index >= NUM_OUTPUT_FORMATS)
1068 fmt->flags = omap_formats[index].flags;
1069 strlcpy(fmt->description, omap_formats[index].description,
1070 sizeof(fmt->description));
1071 fmt->pixelformat = omap_formats[index].pixelformat;
1076 static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
1077 struct v4l2_format *f)
1079 struct omap_vout_device *vout = fh;
1081 f->fmt.pix = vout->pix;
1086 static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
1087 struct v4l2_format *f)
1089 struct omap_overlay *ovl;
1090 struct omapvideo_info *ovid;
1091 struct omap_video_timings *timing;
1092 struct omap_vout_device *vout = fh;
1093 struct omap_dss_device *dssdev;
1095 ovid = &vout->vid_info;
1096 ovl = ovid->overlays[0];
1097 /* get the display device attached to the overlay */
1098 dssdev = ovl->get_device(ovl);
1103 timing = &dssdev->panel.timings;
1105 vout->fbuf.fmt.height = timing->y_res;
1106 vout->fbuf.fmt.width = timing->x_res;
1108 omap_vout_try_format(&f->fmt.pix);
1112 static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
1113 struct v4l2_format *f)
1116 struct omap_overlay *ovl;
1117 struct omapvideo_info *ovid;
1118 struct omap_video_timings *timing;
1119 struct omap_vout_device *vout = fh;
1120 struct omap_dss_device *dssdev;
1122 if (vout->streaming)
1125 mutex_lock(&vout->lock);
1127 ovid = &vout->vid_info;
1128 ovl = ovid->overlays[0];
1129 dssdev = ovl->get_device(ovl);
1131 /* get the display device attached to the overlay */
1134 goto s_fmt_vid_out_exit;
1136 timing = &dssdev->panel.timings;
1138 /* We dont support RGB24-packed mode if vrfb rotation
1140 if ((is_rotation_enabled(vout)) &&
1141 f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1143 goto s_fmt_vid_out_exit;
1146 /* get the framebuffer parameters */
1148 if (is_rotation_90_or_270(vout)) {
1149 vout->fbuf.fmt.height = timing->x_res;
1150 vout->fbuf.fmt.width = timing->y_res;
1152 vout->fbuf.fmt.height = timing->y_res;
1153 vout->fbuf.fmt.width = timing->x_res;
1156 /* change to samller size is OK */
1158 bpp = omap_vout_try_format(&f->fmt.pix);
1159 f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
1161 /* try & set the new output format */
1163 vout->pix = f->fmt.pix;
1166 /* If YUYV then vrfb bpp is 2, for others its 1 */
1167 if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
1168 V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
1171 /* set default crop and win */
1172 omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
1177 mutex_unlock(&vout->lock);
1181 static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
1182 struct v4l2_format *f)
1185 struct omap_vout_device *vout = fh;
1186 struct omap_overlay *ovl;
1187 struct omapvideo_info *ovid;
1188 struct v4l2_window *win = &f->fmt.win;
1190 ovid = &vout->vid_info;
1191 ovl = ovid->overlays[0];
1193 ret = omap_vout_try_window(&vout->fbuf, win);
1196 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1197 win->global_alpha = 255;
1199 win->global_alpha = f->fmt.win.global_alpha;
1205 static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
1206 struct v4l2_format *f)
1209 struct omap_overlay *ovl;
1210 struct omapvideo_info *ovid;
1211 struct omap_vout_device *vout = fh;
1212 struct v4l2_window *win = &f->fmt.win;
1214 mutex_lock(&vout->lock);
1215 ovid = &vout->vid_info;
1216 ovl = ovid->overlays[0];
1218 ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
1220 /* Video1 plane does not support global alpha on OMAP3 */
1221 if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
1222 vout->win.global_alpha = 255;
1224 vout->win.global_alpha = f->fmt.win.global_alpha;
1226 vout->win.chromakey = f->fmt.win.chromakey;
1228 mutex_unlock(&vout->lock);
1232 static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
1233 struct v4l2_format *f)
1236 struct omap_overlay *ovl;
1237 struct omapvideo_info *ovid;
1238 struct omap_vout_device *vout = fh;
1239 struct omap_overlay_manager_info info;
1240 struct v4l2_window *win = &f->fmt.win;
1242 ovid = &vout->vid_info;
1243 ovl = ovid->overlays[0];
1245 win->w = vout->win.w;
1246 win->field = vout->win.field;
1247 win->global_alpha = vout->win.global_alpha;
1249 if (ovl->manager && ovl->manager->get_manager_info) {
1250 ovl->manager->get_manager_info(ovl->manager, &info);
1251 key_value = info.trans_key;
1253 win->chromakey = key_value;
1257 static int vidioc_cropcap(struct file *file, void *fh,
1258 struct v4l2_cropcap *cropcap)
1260 struct omap_vout_device *vout = fh;
1261 struct v4l2_pix_format *pix = &vout->pix;
1263 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1266 /* Width and height are always even */
1267 cropcap->bounds.width = pix->width & ~1;
1268 cropcap->bounds.height = pix->height & ~1;
1270 omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect);
1271 cropcap->pixelaspect.numerator = 1;
1272 cropcap->pixelaspect.denominator = 1;
1276 static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
1278 struct omap_vout_device *vout = fh;
1280 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1282 crop->c = vout->crop;
1286 static int vidioc_s_crop(struct file *file, void *fh, const struct v4l2_crop *crop)
1289 struct omap_vout_device *vout = fh;
1290 struct omapvideo_info *ovid;
1291 struct omap_overlay *ovl;
1292 struct omap_video_timings *timing;
1293 struct omap_dss_device *dssdev;
1295 if (vout->streaming)
1298 mutex_lock(&vout->lock);
1299 ovid = &vout->vid_info;
1300 ovl = ovid->overlays[0];
1301 /* get the display device attached to the overlay */
1302 dssdev = ovl->get_device(ovl);
1309 timing = &dssdev->panel.timings;
1311 if (is_rotation_90_or_270(vout)) {
1312 vout->fbuf.fmt.height = timing->x_res;
1313 vout->fbuf.fmt.width = timing->y_res;
1315 vout->fbuf.fmt.height = timing->y_res;
1316 vout->fbuf.fmt.width = timing->x_res;
1319 if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1320 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
1321 &vout->fbuf, &crop->c);
1324 mutex_unlock(&vout->lock);
1328 static int vidioc_queryctrl(struct file *file, void *fh,
1329 struct v4l2_queryctrl *ctrl)
1334 case V4L2_CID_ROTATE:
1335 ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0);
1337 case V4L2_CID_BG_COLOR:
1338 ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0);
1340 case V4L2_CID_VFLIP:
1341 ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
1344 ctrl->name[0] = '\0';
1350 static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
1353 struct omap_vout_device *vout = fh;
1356 case V4L2_CID_ROTATE:
1357 ctrl->value = vout->control[0].value;
1359 case V4L2_CID_BG_COLOR:
1361 struct omap_overlay_manager_info info;
1362 struct omap_overlay *ovl;
1364 ovl = vout->vid_info.overlays[0];
1365 if (!ovl->manager || !ovl->manager->get_manager_info) {
1370 ovl->manager->get_manager_info(ovl->manager, &info);
1371 ctrl->value = info.default_color;
1374 case V4L2_CID_VFLIP:
1375 ctrl->value = vout->control[2].value;
1383 static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
1386 struct omap_vout_device *vout = fh;
1389 case V4L2_CID_ROTATE:
1391 struct omapvideo_info *ovid;
1392 int rotation = a->value;
1394 ovid = &vout->vid_info;
1396 mutex_lock(&vout->lock);
1397 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
1398 mutex_unlock(&vout->lock);
1403 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1404 mutex_unlock(&vout->lock);
1409 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
1411 mutex_unlock(&vout->lock);
1416 vout->control[0].value = rotation;
1417 mutex_unlock(&vout->lock);
1420 case V4L2_CID_BG_COLOR:
1422 struct omap_overlay *ovl;
1423 unsigned int color = a->value;
1424 struct omap_overlay_manager_info info;
1426 ovl = vout->vid_info.overlays[0];
1428 mutex_lock(&vout->lock);
1429 if (!ovl->manager || !ovl->manager->get_manager_info) {
1430 mutex_unlock(&vout->lock);
1435 ovl->manager->get_manager_info(ovl->manager, &info);
1436 info.default_color = color;
1437 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
1438 mutex_unlock(&vout->lock);
1443 vout->control[1].value = color;
1444 mutex_unlock(&vout->lock);
1447 case V4L2_CID_VFLIP:
1449 struct omapvideo_info *ovid;
1450 unsigned int mirror = a->value;
1452 ovid = &vout->vid_info;
1454 mutex_lock(&vout->lock);
1455 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
1456 mutex_unlock(&vout->lock);
1461 if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
1462 mutex_unlock(&vout->lock);
1466 vout->mirror = mirror;
1467 vout->control[2].value = mirror;
1468 mutex_unlock(&vout->lock);
1477 static int vidioc_reqbufs(struct file *file, void *fh,
1478 struct v4l2_requestbuffers *req)
1481 unsigned int i, num_buffers = 0;
1482 struct omap_vout_device *vout = fh;
1483 struct videobuf_queue *q = &vout->vbq;
1485 if (req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1487 /* if memory is not mmp or userptr
1489 if ((V4L2_MEMORY_MMAP != req->memory) &&
1490 (V4L2_MEMORY_USERPTR != req->memory))
1493 mutex_lock(&vout->lock);
1494 /* Cannot be requested when streaming is on */
1495 if (vout->streaming) {
1500 /* If buffers are already allocated free them */
1501 if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
1502 if (vout->mmap_count) {
1506 num_buffers = (vout->vid == OMAP_VIDEO1) ?
1507 video1_numbuffers : video2_numbuffers;
1508 for (i = num_buffers; i < vout->buffer_allocated; i++) {
1509 omap_vout_free_buffer(vout->buf_virt_addr[i],
1511 vout->buf_virt_addr[i] = 0;
1512 vout->buf_phy_addr[i] = 0;
1514 vout->buffer_allocated = num_buffers;
1515 videobuf_mmap_free(q);
1516 } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
1517 if (vout->buffer_allocated) {
1518 videobuf_mmap_free(q);
1519 for (i = 0; i < vout->buffer_allocated; i++) {
1523 vout->buffer_allocated = 0;
1527 /*store the memory type in data structure */
1528 vout->memory = req->memory;
1530 INIT_LIST_HEAD(&vout->dma_queue);
1532 /* call videobuf_reqbufs api */
1533 ret = videobuf_reqbufs(q, req);
1537 vout->buffer_allocated = req->count;
1540 mutex_unlock(&vout->lock);
1544 static int vidioc_querybuf(struct file *file, void *fh,
1545 struct v4l2_buffer *b)
1547 struct omap_vout_device *vout = fh;
1549 return videobuf_querybuf(&vout->vbq, b);
1552 static int vidioc_qbuf(struct file *file, void *fh,
1553 struct v4l2_buffer *buffer)
1555 struct omap_vout_device *vout = fh;
1556 struct videobuf_queue *q = &vout->vbq;
1558 if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
1559 (buffer->index >= vout->buffer_allocated) ||
1560 (q->bufs[buffer->index]->memory != buffer->memory)) {
1563 if (V4L2_MEMORY_USERPTR == buffer->memory) {
1564 if ((buffer->length < vout->pix.sizeimage) ||
1565 (0 == buffer->m.userptr)) {
1570 if ((is_rotation_enabled(vout)) &&
1571 vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
1572 v4l2_warn(&vout->vid_dev->v4l2_dev,
1573 "DMA Channel not allocated for Rotation\n");
1577 return videobuf_qbuf(q, buffer);
1580 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
1582 struct omap_vout_device *vout = fh;
1583 struct videobuf_queue *q = &vout->vbq;
1588 struct videobuf_buffer *vb;
1590 vb = q->bufs[b->index];
1592 if (!vout->streaming)
1595 if (file->f_flags & O_NONBLOCK)
1596 /* Call videobuf_dqbuf for non blocking mode */
1597 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
1599 /* Call videobuf_dqbuf for blocking mode */
1600 ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
1602 addr = (unsigned long) vout->buf_phy_addr[vb->i];
1603 size = (unsigned long) vb->size;
1604 dma_unmap_single(vout->vid_dev->v4l2_dev.dev, addr,
1605 size, DMA_TO_DEVICE);
1609 static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1612 u32 addr = 0, mask = 0;
1613 struct omap_vout_device *vout = fh;
1614 struct videobuf_queue *q = &vout->vbq;
1615 struct omapvideo_info *ovid = &vout->vid_info;
1617 mutex_lock(&vout->lock);
1619 if (vout->streaming) {
1624 ret = videobuf_streamon(q);
1628 if (list_empty(&vout->dma_queue)) {
1633 /* Get the next frame from the buffer queue */
1634 vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1635 struct videobuf_buffer, queue);
1636 /* Remove buffer from the buffer queue */
1637 list_del(&vout->cur_frm->queue);
1638 /* Mark state of the current frame to active */
1639 vout->cur_frm->state = VIDEOBUF_ACTIVE;
1640 /* Initialize field_id and started member */
1643 /* set flag here. Next QBUF will start DMA */
1644 vout->streaming = true;
1646 vout->first_int = 1;
1648 if (omap_vout_calculate_offset(vout)) {
1652 addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i]
1653 + vout->cropped_offset;
1655 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1658 /* First save the configuration in ovelray structure */
1659 ret = omapvid_init(vout, addr);
1661 v4l2_err(&vout->vid_dev->v4l2_dev,
1662 "failed to set overlay info\n");
1666 omap_dispc_register_isr(omap_vout_isr, vout, mask);
1668 /* Enable the pipeline and set the Go bit */
1669 ret = omapvid_apply_changes(vout);
1671 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1673 for (j = 0; j < ovid->num_overlays; j++) {
1674 struct omap_overlay *ovl = ovid->overlays[j];
1675 struct omap_dss_device *dssdev = ovl->get_device(ovl);
1678 ret = ovl->enable(ovl);
1688 ret = videobuf_streamoff(q);
1690 mutex_unlock(&vout->lock);
1694 static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1698 struct omap_vout_device *vout = fh;
1699 struct omapvideo_info *ovid = &vout->vid_info;
1701 if (!vout->streaming)
1704 vout->streaming = false;
1705 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1708 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1710 for (j = 0; j < ovid->num_overlays; j++) {
1711 struct omap_overlay *ovl = ovid->overlays[j];
1712 struct omap_dss_device *dssdev = ovl->get_device(ovl);
1718 /* Turn of the pipeline */
1719 ret = omapvid_apply_changes(vout);
1721 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in"
1724 INIT_LIST_HEAD(&vout->dma_queue);
1725 ret = videobuf_streamoff(&vout->vbq);
1730 static int vidioc_s_fbuf(struct file *file, void *fh,
1731 const struct v4l2_framebuffer *a)
1734 struct omap_overlay *ovl;
1735 struct omapvideo_info *ovid;
1736 struct omap_vout_device *vout = fh;
1737 struct omap_overlay_manager_info info;
1738 enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1740 ovid = &vout->vid_info;
1741 ovl = ovid->overlays[0];
1743 /* OMAP DSS doesn't support Source and Destination color
1745 if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
1746 (a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
1748 /* OMAP DSS Doesn't support the Destination color key
1749 and alpha blending together */
1750 if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
1751 (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA))
1754 if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) {
1755 vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1756 key_type = OMAP_DSS_COLOR_KEY_VID_SRC;
1758 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1760 if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) {
1761 vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1762 key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1764 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_CHROMAKEY;
1766 if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
1767 V4L2_FBUF_FLAG_SRC_CHROMAKEY))
1771 if (ovl->manager && ovl->manager->get_manager_info &&
1772 ovl->manager->set_manager_info) {
1774 ovl->manager->get_manager_info(ovl->manager, &info);
1775 info.trans_enabled = enable;
1776 info.trans_key_type = key_type;
1777 info.trans_key = vout->win.chromakey;
1779 if (ovl->manager->set_manager_info(ovl->manager, &info))
1782 if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
1783 vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1786 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
1789 if (ovl->manager && ovl->manager->get_manager_info &&
1790 ovl->manager->set_manager_info) {
1791 ovl->manager->get_manager_info(ovl->manager, &info);
1792 /* enable this only if there is no zorder cap */
1793 if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
1794 info.partial_alpha_enabled = enable;
1795 if (ovl->manager->set_manager_info(ovl->manager, &info))
1802 static int vidioc_g_fbuf(struct file *file, void *fh,
1803 struct v4l2_framebuffer *a)
1805 struct omap_overlay *ovl;
1806 struct omapvideo_info *ovid;
1807 struct omap_vout_device *vout = fh;
1808 struct omap_overlay_manager_info info;
1810 ovid = &vout->vid_info;
1811 ovl = ovid->overlays[0];
1813 /* The video overlay must stay within the framebuffer and can't be
1814 positioned independently. */
1815 a->flags = V4L2_FBUF_FLAG_OVERLAY;
1816 a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY
1817 | V4L2_FBUF_CAP_SRC_CHROMAKEY;
1819 if (ovl->manager && ovl->manager->get_manager_info) {
1820 ovl->manager->get_manager_info(ovl->manager, &info);
1821 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
1822 a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1823 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
1824 a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1826 if (ovl->manager && ovl->manager->get_manager_info) {
1827 ovl->manager->get_manager_info(ovl->manager, &info);
1828 if (info.partial_alpha_enabled)
1829 a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1835 static const struct v4l2_ioctl_ops vout_ioctl_ops = {
1836 .vidioc_querycap = vidioc_querycap,
1837 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
1838 .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out,
1839 .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
1840 .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
1841 .vidioc_queryctrl = vidioc_queryctrl,
1842 .vidioc_g_ctrl = vidioc_g_ctrl,
1843 .vidioc_s_fbuf = vidioc_s_fbuf,
1844 .vidioc_g_fbuf = vidioc_g_fbuf,
1845 .vidioc_s_ctrl = vidioc_s_ctrl,
1846 .vidioc_try_fmt_vid_out_overlay = vidioc_try_fmt_vid_overlay,
1847 .vidioc_s_fmt_vid_out_overlay = vidioc_s_fmt_vid_overlay,
1848 .vidioc_g_fmt_vid_out_overlay = vidioc_g_fmt_vid_overlay,
1849 .vidioc_cropcap = vidioc_cropcap,
1850 .vidioc_g_crop = vidioc_g_crop,
1851 .vidioc_s_crop = vidioc_s_crop,
1852 .vidioc_reqbufs = vidioc_reqbufs,
1853 .vidioc_querybuf = vidioc_querybuf,
1854 .vidioc_qbuf = vidioc_qbuf,
1855 .vidioc_dqbuf = vidioc_dqbuf,
1856 .vidioc_streamon = vidioc_streamon,
1857 .vidioc_streamoff = vidioc_streamoff,
1860 static const struct v4l2_file_operations omap_vout_fops = {
1861 .owner = THIS_MODULE,
1862 .poll = omap_vout_poll,
1863 .unlocked_ioctl = video_ioctl2,
1864 .mmap = omap_vout_mmap,
1865 .open = omap_vout_open,
1866 .release = omap_vout_release,
1869 /* Init functions used during driver initialization */
1870 /* Initial setup of video_data */
1871 static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
1873 struct video_device *vfd;
1874 struct v4l2_pix_format *pix;
1875 struct v4l2_control *control;
1876 struct omap_overlay *ovl = vout->vid_info.overlays[0];
1877 struct omap_dss_device *display = ovl->get_device(ovl);
1879 /* set the default pix */
1882 /* Set the default picture of QVGA */
1883 pix->width = QQVGA_WIDTH;
1884 pix->height = QQVGA_HEIGHT;
1886 /* Default pixel format is RGB 5-6-5 */
1887 pix->pixelformat = V4L2_PIX_FMT_RGB565;
1888 pix->field = V4L2_FIELD_ANY;
1889 pix->bytesperline = pix->width * 2;
1890 pix->sizeimage = pix->bytesperline * pix->height;
1891 pix->colorspace = V4L2_COLORSPACE_JPEG;
1893 vout->bpp = RGB565_BPP;
1894 vout->fbuf.fmt.width = display->panel.timings.x_res;
1895 vout->fbuf.fmt.height = display->panel.timings.y_res;
1897 /* Set the data structures for the overlay parameters*/
1898 vout->win.global_alpha = 255;
1899 vout->fbuf.flags = 0;
1900 vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
1901 V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY;
1902 vout->win.chromakey = 0;
1904 omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
1906 /*Initialize the control variables for
1907 rotation, flipping and background color. */
1908 control = vout->control;
1909 control[0].id = V4L2_CID_ROTATE;
1910 control[0].value = 0;
1912 vout->mirror = false;
1913 vout->control[2].id = V4L2_CID_HFLIP;
1914 vout->control[2].value = 0;
1915 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
1918 control[1].id = V4L2_CID_BG_COLOR;
1919 control[1].value = 0;
1921 /* initialize the video_device struct */
1922 vfd = vout->vfd = video_device_alloc();
1925 printk(KERN_ERR VOUT_NAME ": could not allocate"
1926 " video device struct\n");
1929 vfd->release = video_device_release;
1930 vfd->ioctl_ops = &vout_ioctl_ops;
1932 strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
1934 vfd->fops = &omap_vout_fops;
1935 vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
1936 vfd->vfl_dir = VFL_DIR_TX;
1937 mutex_init(&vout->lock);
1944 /* Setup video buffers */
1945 static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
1950 struct omapvideo_info *ovid;
1951 struct omap_vout_device *vout;
1952 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1953 struct omap2video_device *vid_dev =
1954 container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
1956 vout = vid_dev->vouts[vid_num];
1957 ovid = &vout->vid_info;
1959 numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers;
1960 vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize;
1961 dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size);
1963 for (i = 0; i < numbuffers; i++) {
1964 vout->buf_virt_addr[i] =
1965 omap_vout_alloc_buffer(vout->buffer_size,
1966 (u32 *) &vout->buf_phy_addr[i]);
1967 if (!vout->buf_virt_addr[i]) {
1974 vout->cropped_offset = 0;
1976 if (ovid->rotation_type == VOUT_ROT_VRFB) {
1977 bool static_vrfb_allocation = (vid_num == 0) ?
1978 vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
1979 ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
1980 static_vrfb_allocation);
1986 for (i = 0; i < numbuffers; i++) {
1987 omap_vout_free_buffer(vout->buf_virt_addr[i],
1989 vout->buf_virt_addr[i] = 0;
1990 vout->buf_phy_addr[i] = 0;
1996 /* Create video out devices */
1997 static int __init omap_vout_create_video_devices(struct platform_device *pdev)
2000 struct omap_vout_device *vout;
2001 struct video_device *vfd = NULL;
2002 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2003 struct omap2video_device *vid_dev = container_of(v4l2_dev,
2004 struct omap2video_device, v4l2_dev);
2006 for (k = 0; k < pdev->num_resources; k++) {
2008 vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
2010 dev_err(&pdev->dev, ": could not allocate memory\n");
2015 vid_dev->vouts[k] = vout;
2016 vout->vid_dev = vid_dev;
2017 /* Select video2 if only 1 overlay is controlled by V4L2 */
2018 if (pdev->num_resources == 1)
2019 vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
2021 /* Else select video1 and video2 one by one. */
2022 vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
2023 vout->vid_info.num_overlays = 1;
2024 vout->vid_info.id = k + 1;
2026 /* Set VRFB as rotation_type for omap2 and omap3 */
2027 if (omap_vout_dss_omap24xx() || omap_vout_dss_omap34xx())
2028 vout->vid_info.rotation_type = VOUT_ROT_VRFB;
2030 /* Setup the default configuration for the video devices
2032 if (omap_vout_setup_video_data(vout) != 0) {
2037 /* Allocate default number of buffers for the video streaming
2038 * and reserve the VRFB space for rotation
2040 if (omap_vout_setup_video_bufs(pdev, k) != 0) {
2045 /* Register the Video device with V4L2
2048 if (video_register_device(vfd, VFL_TYPE_GRABBER, -1) < 0) {
2049 dev_err(&pdev->dev, ": Could not register "
2050 "Video for Linux device\n");
2055 video_set_drvdata(vfd, vout);
2057 dev_info(&pdev->dev, ": registered and initialized"
2058 " video device %d\n", vfd->minor);
2059 if (k == (pdev->num_resources - 1))
2064 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
2065 omap_vout_release_vrfb(vout);
2066 omap_vout_free_buffers(vout);
2068 video_device_release(vfd);
2076 /* Driver functions */
2077 static void omap_vout_cleanup_device(struct omap_vout_device *vout)
2079 struct video_device *vfd;
2080 struct omapvideo_info *ovid;
2086 ovid = &vout->vid_info;
2088 if (!video_is_registered(vfd)) {
2090 * The device was never registered, so release the
2091 * video_device struct directly.
2093 video_device_release(vfd);
2096 * The unregister function will release the video_device
2097 * struct as well as unregistering it.
2099 video_unregister_device(vfd);
2102 if (ovid->rotation_type == VOUT_ROT_VRFB) {
2103 omap_vout_release_vrfb(vout);
2104 /* Free the VRFB buffer if allocated
2107 if (vout->vrfb_static_allocation)
2108 omap_vout_free_vrfb_buffers(vout);
2110 omap_vout_free_buffers(vout);
2115 static int omap_vout_remove(struct platform_device *pdev)
2118 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
2119 struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
2120 omap2video_device, v4l2_dev);
2122 v4l2_device_unregister(v4l2_dev);
2123 for (k = 0; k < pdev->num_resources; k++)
2124 omap_vout_cleanup_device(vid_dev->vouts[k]);
2126 for (k = 0; k < vid_dev->num_displays; k++) {
2127 if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
2128 vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
2130 omap_dss_put_device(vid_dev->displays[k]);
2136 static int __init omap_vout_probe(struct platform_device *pdev)
2139 struct omap_overlay *ovl;
2140 struct omap_dss_device *dssdev = NULL;
2141 struct omap_dss_device *def_display;
2142 struct omap2video_device *vid_dev = NULL;
2144 if (omapdss_is_initialized() == false)
2145 return -EPROBE_DEFER;
2147 ret = omapdss_compat_init();
2149 dev_err(&pdev->dev, "failed to init dss\n");
2153 if (pdev->num_resources == 0) {
2154 dev_err(&pdev->dev, "probed for an unknown device\n");
2159 vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
2160 if (vid_dev == NULL) {
2165 vid_dev->num_displays = 0;
2166 for_each_dss_dev(dssdev) {
2167 omap_dss_get_device(dssdev);
2169 if (!dssdev->driver) {
2170 dev_warn(&pdev->dev, "no driver for display: %s\n",
2172 omap_dss_put_device(dssdev);
2176 vid_dev->displays[vid_dev->num_displays++] = dssdev;
2179 if (vid_dev->num_displays == 0) {
2180 dev_err(&pdev->dev, "no displays\n");
2185 vid_dev->num_overlays = omap_dss_get_num_overlays();
2186 for (i = 0; i < vid_dev->num_overlays; i++)
2187 vid_dev->overlays[i] = omap_dss_get_overlay(i);
2189 vid_dev->num_managers = omap_dss_get_num_overlay_managers();
2190 for (i = 0; i < vid_dev->num_managers; i++)
2191 vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
2193 /* Get the Video1 overlay and video2 overlay.
2194 * Setup the Display attached to that overlays
2196 for (i = 1; i < vid_dev->num_overlays; i++) {
2197 ovl = omap_dss_get_overlay(i);
2198 dssdev = ovl->get_device(ovl);
2201 def_display = dssdev;
2203 dev_warn(&pdev->dev, "cannot find display\n");
2207 struct omap_dss_driver *dssdrv = def_display->driver;
2209 ret = dssdrv->enable(def_display);
2211 /* Here we are not considering a error
2212 * as display may be enabled by frame
2215 dev_warn(&pdev->dev,
2216 "'%s' Display already enabled\n",
2222 if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
2223 dev_err(&pdev->dev, "v4l2_device_register failed\n");
2228 ret = omap_vout_create_video_devices(pdev);
2232 for (i = 0; i < vid_dev->num_displays; i++) {
2233 struct omap_dss_device *display = vid_dev->displays[i];
2235 if (display->driver->update)
2236 display->driver->update(display, 0, 0,
2237 display->panel.timings.x_res,
2238 display->panel.timings.y_res);
2243 v4l2_device_unregister(&vid_dev->v4l2_dev);
2245 for (i = 1; i < vid_dev->num_overlays; i++) {
2247 ovl = omap_dss_get_overlay(i);
2248 dssdev = ovl->get_device(ovl);
2251 def_display = dssdev;
2253 if (def_display && def_display->driver)
2254 def_display->driver->disable(def_display);
2259 omapdss_compat_uninit();
2263 static struct platform_driver omap_vout_driver = {
2267 .remove = omap_vout_remove,
2270 static int __init omap_vout_init(void)
2272 if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) {
2273 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
2279 static void omap_vout_cleanup(void)
2281 platform_driver_unregister(&omap_vout_driver);
2284 late_initcall(omap_vout_init);
2285 module_exit(omap_vout_cleanup);