#include <linux/irq.h>
#include <linux/videodev2.h>
#include <linux/dma-mapping.h>
+#include <linux/slab.h>
#include <media/videobuf-dma-contig.h>
#include <media/v4l2-device.h>
struct vm_area_struct *vma;
struct mm_struct *mm = current->mm;
- vma = find_vma(mm, virtp);
/* For kernel direct-mapped memory, take the easy way */
- if (virtp >= PAGE_OFFSET) {
- physp = virt_to_phys((void *) virtp);
- } else if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) {
+ if (virtp >= PAGE_OFFSET)
+ return virt_to_phys((void *) virtp);
+
+ down_read(¤t->mm->mmap_sem);
+ vma = find_vma(mm, virtp);
+ if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) {
/* this will catch, kernel-allocated, mmaped-to-usermode
addresses */
physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start);
+ up_read(¤t->mm->mmap_sem);
} else {
/* otherwise, use get_user_pages() for general userland pages */
int res, nr_pages = 1;
struct page *pages;
- down_read(¤t->mm->mmap_sem);
res = get_user_pages(current, current->mm, virtp, nr_pages, 1,
0, &pages, NULL);
ovl->get_overlay_info(ovl, &info);
info.paddr = addr;
- info.vaddr = NULL;
info.width = cropwidth;
info.height = cropheight;
info.color_mode = vout->dss_mode;
/*
* File operations
*/
+static unsigned int omap_vout_poll(struct file *file,
+ struct poll_table_struct *wait)
+{
+ struct omap_vout_device *vout = file->private_data;
+ struct videobuf_queue *q = &vout->vbq;
+
+ return videobuf_poll_stream(file, q, wait);
+}
+
static void omap_vout_vm_open(struct vm_area_struct *vma)
{
struct omap_vout_device *vout = vma->vm_private_data;
strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
strlcpy(cap->card, vout->vfd->name, sizeof(cap->card));
cap->bus_info[0] = '\0';
- cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT;
+ cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
+ V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
return 0;
}
{
int ret = 0;
struct omap_vout_device *vout = fh;
+ struct omap_overlay *ovl;
+ struct omapvideo_info *ovid;
struct v4l2_window *win = &f->fmt.win;
+ ovid = &vout->vid_info;
+ ovl = ovid->overlays[0];
+
ret = omap_vout_try_window(&vout->fbuf, win);
if (!ret) {
- if (vout->vid == OMAP_VIDEO1)
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
win->global_alpha = 255;
else
win->global_alpha = f->fmt.win.global_alpha;
ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
if (!ret) {
- /* Video1 plane does not support global alpha */
- if (ovl->id == OMAP_DSS_VIDEO1)
+ /* Video1 plane does not support global alpha on OMAP3 */
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
vout->win.global_alpha = 255;
else
vout->win.global_alpha = f->fmt.win.global_alpha;
if (ovl->manager && ovl->manager->get_manager_info &&
ovl->manager->set_manager_info) {
ovl->manager->get_manager_info(ovl->manager, &info);
- info.alpha_enabled = enable;
+ /* enable this only if there is no zorder cap */
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
+ info.partial_alpha_enabled = enable;
if (ovl->manager->set_manager_info(ovl->manager, &info))
return -EINVAL;
}
ovid = &vout->vid_info;
ovl = ovid->overlays[0];
- a->flags = 0x0;
+ /* The video overlay must stay within the framebuffer and can't be
+ positioned independently. */
+ a->flags = V4L2_FBUF_FLAG_OVERLAY;
a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY
| V4L2_FBUF_CAP_SRC_CHROMAKEY;
}
if (ovl->manager && ovl->manager->get_manager_info) {
ovl->manager->get_manager_info(ovl->manager, &info);
- if (info.alpha_enabled)
+ if (info.partial_alpha_enabled)
a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
}
static const struct v4l2_file_operations omap_vout_fops = {
.owner = THIS_MODULE,
+ .poll = omap_vout_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = omap_vout_mmap,
.open = omap_vout_open,
vid_dev->num_displays = 0;
for_each_dss_dev(dssdev) {
omap_dss_get_device(dssdev);
+
+ if (!dssdev->driver) {
+ dev_warn(&pdev->dev, "no driver for display: %s\n",
+ dssdev->name);
+ omap_dss_put_device(dssdev);
+ continue;
+ }
+
vid_dev->displays[vid_dev->num_displays++] = dssdev;
}