diff options
Diffstat (limited to 'drivers/media/common/saa7146')
| -rw-r--r-- | drivers/media/common/saa7146/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_core.c | 40 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_fops.c | 373 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_hlp.c | 355 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_vbi.c | 287 | ||||
| -rw-r--r-- | drivers/media/common/saa7146/saa7146_video.c | 959 |
6 files changed, 447 insertions, 1569 deletions
diff --git a/drivers/media/common/saa7146/Kconfig b/drivers/media/common/saa7146/Kconfig index a0aa155e5d85..dfec86e50dff 100644 --- a/drivers/media/common/saa7146/Kconfig +++ b/drivers/media/common/saa7146/Kconfig @@ -6,5 +6,5 @@ config VIDEO_SAA7146 config VIDEO_SAA7146_VV tristate depends on VIDEO_DEV - select VIDEOBUF_DMA_SG + select VIDEOBUF2_DMA_SG select VIDEO_SAA7146 diff --git a/drivers/media/common/saa7146/saa7146_core.c b/drivers/media/common/saa7146/saa7146_core.c index e50fa0ff7c5d..bcb957883044 100644 --- a/drivers/media/common/saa7146/saa7146_core.c +++ b/drivers/media/common/saa7146/saa7146_core.c @@ -37,7 +37,8 @@ void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data) { u32 value = 0; - BUG_ON(port > 3); + if (WARN_ON(port > 3)) + return; value = saa7146_read(dev, GPIO_CTRL); value &= ~(0xff << (8*port)); @@ -148,7 +149,8 @@ static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages) pg = vmalloc_to_page(virt); if (NULL == pg) goto err; - BUG_ON(PageHighMem(pg)); + if (WARN_ON(PageHighMem(pg))) + return NULL; sg_set_page(&sglist[i], pg, PAGE_SIZE, 0); } return sglist; @@ -233,46 +235,32 @@ int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt) } int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt, - struct scatterlist *list, int sglen ) + struct scatterlist *list, int sglen) { + struct sg_dma_page_iter dma_iter; __le32 *ptr, fill; int nr_pages = 0; - int i,p; + int i; - BUG_ON(0 == sglen); - BUG_ON(list->offset > PAGE_SIZE); + if (WARN_ON(!sglen) || + WARN_ON(list->offset > PAGE_SIZE)) + return -EIO; /* if we have a user buffer, the first page may not be aligned to a page boundary. */ pt->offset = list->offset; ptr = pt->cpu; - for (i = 0; i < sglen; i++, list++) { -/* - pr_debug("i:%d, adr:0x%08x, len:%d, offset:%d\n", - i, sg_dma_address(list), sg_dma_len(list), - list->offset); -*/ - for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr++) { - *ptr = cpu_to_le32(sg_dma_address(list) + p * 4096); - nr_pages++; - } + for_each_sg_dma_page(list, &dma_iter, sglen, 0) { + *ptr++ = cpu_to_le32(sg_page_iter_dma_address(&dma_iter)); + nr_pages++; } /* safety; fill the page table up with the last valid page */ fill = *(ptr-1); - for(i=nr_pages;i<1024;i++) { + for (i = nr_pages; i < 1024; i++) *ptr++ = fill; - } - -/* - ptr = pt->cpu; - pr_debug("offset: %d\n", pt->offset); - for(i=0;i<5;i++) { - pr_debug("ptr1 %d: 0x%08x\n", i, ptr[i]); - } -*/ return 0; } diff --git a/drivers/media/common/saa7146/saa7146_fops.c b/drivers/media/common/saa7146/saa7146_fops.c index e9a15de6126e..79214459387a 100644 --- a/drivers/media/common/saa7146/saa7146_fops.c +++ b/drivers/media/common/saa7146/saa7146_fops.c @@ -7,12 +7,11 @@ /****************************************************************************/ /* resource management functions, shamelessly stolen from saa7134 driver */ -int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit) +int saa7146_res_get(struct saa7146_dev *dev, unsigned int bit) { - struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; - if (fh->resources & bit) { + if (vv->resources & bit) { DEB_D("already allocated! want: 0x%02x, cur:0x%02x\n", bit, vv->resources); /* have it already allocated */ @@ -27,42 +26,23 @@ int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit) return 0; } /* it's free, grab it */ - fh->resources |= bit; vv->resources |= bit; DEB_D("res: get 0x%02x, cur:0x%02x\n", bit, vv->resources); return 1; } -void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits) +void saa7146_res_free(struct saa7146_dev *dev, unsigned int bits) { - struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; - BUG_ON((fh->resources & bits) != bits); + WARN_ON((vv->resources & bits) != bits); - fh->resources &= ~bits; vv->resources &= ~bits; DEB_D("res: put 0x%02x, cur:0x%02x\n", bits, vv->resources); } /********************************************************************************/ -/* common dma functions */ - -void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q, - struct saa7146_buf *buf) -{ - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - DEB_EE("dev:%p, buf:%p\n", dev, buf); - - videobuf_waiton(q, &buf->vb, 0, 0); - videobuf_dma_unmap(q->dev, dma); - videobuf_dma_free(dma); - buf->vb.state = VIDEOBUF_NEEDS_INIT; -} - - -/********************************************************************************/ /* common buffer functions */ int saa7146_buffer_queue(struct saa7146_dev *dev, @@ -72,15 +52,15 @@ int saa7146_buffer_queue(struct saa7146_dev *dev, assert_spin_locked(&dev->slock); DEB_EE("dev:%p, dmaq:%p, buf:%p\n", dev, q, buf); - BUG_ON(!q); + if (WARN_ON(!q)) + return -EIO; if (NULL == q->curr) { q->curr = buf; DEB_D("immediately activating buffer %p\n", buf); buf->activate(dev,buf,NULL); } else { - list_add_tail(&buf->vb.queue,&q->queue); - buf->vb.state = VIDEOBUF_QUEUED; + list_add_tail(&buf->list, &q->queue); DEB_D("adding buffer %p to queue. (active buffer present)\n", buf); } @@ -91,21 +71,31 @@ void saa7146_buffer_finish(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, int state) { + struct saa7146_vv *vv = dev->vv_data; + struct saa7146_buf *buf = q->curr; + assert_spin_locked(&dev->slock); DEB_EE("dev:%p, dmaq:%p, state:%d\n", dev, q, state); DEB_EE("q->curr:%p\n", q->curr); /* finish current buffer */ - if (NULL == q->curr) { + if (!buf) { DEB_D("aiii. no current buffer\n"); return; } - q->curr->vb.state = state; - q->curr->vb.ts = ktime_get_ns(); - wake_up(&q->curr->vb.done); - q->curr = NULL; + buf->vb.vb2_buf.timestamp = ktime_get_ns(); + if (vv->video_fmt.field == V4L2_FIELD_ALTERNATE) + buf->vb.field = vv->last_field; + else if (vv->video_fmt.field == V4L2_FIELD_ANY) + buf->vb.field = (vv->video_fmt.height > vv->standard->v_max_out / 2) + ? V4L2_FIELD_INTERLACED + : V4L2_FIELD_BOTTOM; + else + buf->vb.field = vv->video_fmt.field; + buf->vb.sequence = vv->seqnr++; + vb2_buffer_done(&buf->vb.vb2_buf, state); } void saa7146_buffer_next(struct saa7146_dev *dev, @@ -113,17 +103,18 @@ void saa7146_buffer_next(struct saa7146_dev *dev, { struct saa7146_buf *buf,*next = NULL; - BUG_ON(!q); + if (WARN_ON(!q)) + return; DEB_INT("dev:%p, dmaq:%p, vbi:%d\n", dev, q, vbi); assert_spin_locked(&dev->slock); if (!list_empty(&q->queue)) { /* activate next one from queue */ - buf = list_entry(q->queue.next,struct saa7146_buf,vb.queue); - list_del(&buf->vb.queue); + buf = list_entry(q->queue.next, struct saa7146_buf, list); + list_del(&buf->list); if (!list_empty(&q->queue)) - next = list_entry(q->queue.next,struct saa7146_buf, vb.queue); + next = list_entry(q->queue.next, struct saa7146_buf, list); q->curr = buf; DEB_INT("next buffer: buf:%p, prev:%p, next:%p\n", buf, q->queue.prev, q->queue.next); @@ -171,7 +162,7 @@ void saa7146_buffer_timeout(struct timer_list *t) spin_lock_irqsave(&dev->slock,flags); if (q->curr) { DEB_D("timeout on %p\n", q->curr); - saa7146_buffer_finish(dev,q,VIDEOBUF_ERROR); + saa7146_buffer_finish(dev, q, VB2_BUF_STATE_ERROR); } /* we don't restart the transfer here like other drivers do. when @@ -180,256 +171,39 @@ void saa7146_buffer_timeout(struct timer_list *t) we mess up our capture logic. if a timeout occurs on another buffer, then something is seriously broken before, so no need to buffer the next capture IMHO... */ -/* - saa7146_buffer_next(dev,q); -*/ + + saa7146_buffer_next(dev, q, 0); + spin_unlock_irqrestore(&dev->slock,flags); } /********************************************************************************/ /* file operations */ -static int fops_open(struct file *file) +static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos) { struct video_device *vdev = video_devdata(file); struct saa7146_dev *dev = video_drvdata(file); - struct saa7146_fh *fh = NULL; - int result = 0; - - DEB_EE("file:%p, dev:%s\n", file, video_device_node_name(vdev)); - - if (mutex_lock_interruptible(vdev->lock)) - return -ERESTARTSYS; - - DEB_D("using: %p\n", dev); - - /* check if an extension is registered */ - if( NULL == dev->ext ) { - DEB_S("no extension registered for this device\n"); - result = -ENODEV; - goto out; - } - - /* allocate per open data */ - fh = kzalloc(sizeof(*fh),GFP_KERNEL); - if (NULL == fh) { - DEB_S("cannot allocate memory for per open data\n"); - result = -ENOMEM; - goto out; - } - - v4l2_fh_init(&fh->fh, vdev); - - file->private_data = &fh->fh; - fh->dev = dev; - - if (vdev->vfl_type == VFL_TYPE_VBI) { - DEB_S("initializing vbi...\n"); - if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - result = saa7146_vbi_uops.open(dev,file); - if (dev->ext_vv_data->vbi_fops.open) - dev->ext_vv_data->vbi_fops.open(file); - } else { - DEB_S("initializing video...\n"); - result = saa7146_video_uops.open(dev,file); - } - - if (0 != result) { - goto out; - } - - if( 0 == try_module_get(dev->ext->module)) { - result = -EINVAL; - goto out; - } - - result = 0; - v4l2_fh_add(&fh->fh); -out: - if (fh && result != 0) { - kfree(fh); - file->private_data = NULL; - } - mutex_unlock(vdev->lock); - return result; -} - -static int fops_release(struct file *file) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - - DEB_EE("file:%p\n", file); - - mutex_lock(vdev->lock); - - if (vdev->vfl_type == VFL_TYPE_VBI) { - if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) - saa7146_vbi_uops.release(dev,file); - if (dev->ext_vv_data->vbi_fops.release) - dev->ext_vv_data->vbi_fops.release(file); - } else { - saa7146_video_uops.release(dev,file); - } - - v4l2_fh_del(&fh->fh); - v4l2_fh_exit(&fh->fh); - module_put(dev->ext->module); - file->private_data = NULL; - kfree(fh); - - mutex_unlock(vdev->lock); - - return 0; -} - -static int fops_mmap(struct file *file, struct vm_area_struct * vma) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - struct videobuf_queue *q; - int res; - - switch (vdev->vfl_type) { - case VFL_TYPE_VIDEO: { - DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n", - file, vma); - q = &fh->video_q; - break; - } - case VFL_TYPE_VBI: { - DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n", - file, vma); - if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT) - return -ENODEV; - q = &fh->vbi_q; - break; - } - default: - BUG(); - } + int ret; + if (vdev->vfl_type != VFL_TYPE_VBI || !dev->ext_vv_data->vbi_fops.write) + return -EINVAL; if (mutex_lock_interruptible(vdev->lock)) return -ERESTARTSYS; - res = videobuf_mmap_mapper(q, vma); + ret = dev->ext_vv_data->vbi_fops.write(file, data, count, ppos); mutex_unlock(vdev->lock); - return res; -} - -static __poll_t __fops_poll(struct file *file, struct poll_table_struct *wait) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - struct videobuf_buffer *buf = NULL; - struct videobuf_queue *q; - __poll_t res = v4l2_ctrl_poll(file, wait); - - DEB_EE("file:%p, poll:%p\n", file, wait); - - if (vdev->vfl_type == VFL_TYPE_VBI) { - if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT) - return res | EPOLLOUT | EPOLLWRNORM; - if( 0 == fh->vbi_q.streaming ) - return res | videobuf_poll_stream(file, &fh->vbi_q, wait); - q = &fh->vbi_q; - } else { - DEB_D("using video queue\n"); - q = &fh->video_q; - } - - if (!list_empty(&q->stream)) - buf = list_entry(q->stream.next, struct videobuf_buffer, stream); - - if (!buf) { - DEB_D("buf == NULL!\n"); - return res | EPOLLERR; - } - - poll_wait(file, &buf->done, wait); - if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) { - DEB_D("poll succeeded!\n"); - return res | EPOLLIN | EPOLLRDNORM; - } - - DEB_D("nothing to poll for, buf->state:%d\n", buf->state); - return res; -} - -static __poll_t fops_poll(struct file *file, struct poll_table_struct *wait) -{ - struct video_device *vdev = video_devdata(file); - __poll_t res; - - mutex_lock(vdev->lock); - res = __fops_poll(file, wait); - mutex_unlock(vdev->lock); - return res; -} - -static ssize_t fops_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - int ret; - - switch (vdev->vfl_type) { - case VFL_TYPE_VIDEO: -/* - DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun", - file, data, (unsigned long)count); -*/ - return saa7146_video_uops.read(file,data,count,ppos); - case VFL_TYPE_VBI: -/* - DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n", - file, data, (unsigned long)count); -*/ - if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) { - if (mutex_lock_interruptible(vdev->lock)) - return -ERESTARTSYS; - ret = saa7146_vbi_uops.read(file, data, count, ppos); - mutex_unlock(vdev->lock); - return ret; - } - return -EINVAL; - default: - BUG(); - } -} - -static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos) -{ - struct video_device *vdev = video_devdata(file); - struct saa7146_fh *fh = file->private_data; - int ret; - - switch (vdev->vfl_type) { - case VFL_TYPE_VIDEO: - return -EINVAL; - case VFL_TYPE_VBI: - if (fh->dev->ext_vv_data->vbi_fops.write) { - if (mutex_lock_interruptible(vdev->lock)) - return -ERESTARTSYS; - ret = fh->dev->ext_vv_data->vbi_fops.write(file, data, count, ppos); - mutex_unlock(vdev->lock); - return ret; - } - return -EINVAL; - default: - BUG(); - } + return ret; } static const struct v4l2_file_operations video_fops = { .owner = THIS_MODULE, - .open = fops_open, - .release = fops_release, - .read = fops_read, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .read = vb2_fop_read, .write = fops_write, - .poll = fops_poll, - .mmap = fops_mmap, + .poll = vb2_fop_poll, + .mmap = vb2_fop_mmap, .unlocked_ioctl = video_ioctl2, }; @@ -516,33 +290,15 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv) configuration data) */ dev->ext_vv_data = ext_vv; - vv->d_clipping.cpu_addr = - dma_alloc_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM, - &vv->d_clipping.dma_handle, GFP_KERNEL); - if( NULL == vv->d_clipping.cpu_addr ) { - ERR("out of memory. aborting.\n"); - kfree(vv); - v4l2_ctrl_handler_free(hdl); - v4l2_device_unregister(&dev->v4l2_dev); - return -ENOMEM; - } - saa7146_video_uops.init(dev,vv); if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) saa7146_vbi_uops.init(dev,vv); - vv->ov_fb.fmt.width = vv->standard->h_max_out; - vv->ov_fb.fmt.height = vv->standard->v_max_out; - vv->ov_fb.fmt.pixelformat = V4L2_PIX_FMT_RGB565; - vv->ov_fb.fmt.bytesperline = 2 * vv->ov_fb.fmt.width; - vv->ov_fb.fmt.sizeimage = vv->ov_fb.fmt.bytesperline * vv->ov_fb.fmt.height; - vv->ov_fb.fmt.colorspace = V4L2_COLORSPACE_SRGB; - fmt = &vv->video_fmt; fmt->width = 384; fmt->height = 288; fmt->pixelformat = V4L2_PIX_FMT_BGR24; - fmt->field = V4L2_FIELD_ANY; + fmt->field = V4L2_FIELD_INTERLACED; fmt->colorspace = V4L2_COLORSPACE_SMPTE170M; fmt->bytesperline = 3 * fmt->width; fmt->sizeimage = fmt->bytesperline * fmt->height; @@ -561,8 +317,6 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv) timer_setup(&vv->vbi_read_timeout, NULL, 0); - vv->ov_fb.capability = V4L2_FBUF_CAP_LIST_CLIPPING; - vv->ov_fb.flags = V4L2_FBUF_FLAG_PRIMARY; dev->vv_data = vv; dev->vv_callback = &vv_callback; @@ -577,8 +331,6 @@ int saa7146_vv_release(struct saa7146_dev* dev) DEB_EE("dev:%p\n", dev); v4l2_device_unregister(&dev->v4l2_dev); - dma_free_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM, - vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle); v4l2_ctrl_handler_free(&dev->ctrl_handler); kfree(vv); dev->vv_data = NULL; @@ -591,16 +343,20 @@ EXPORT_SYMBOL_GPL(saa7146_vv_release); int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev, char *name, int type) { + struct vb2_queue *q; int err; int i; DEB_EE("dev:%p, name:'%s', type:%d\n", dev, name, type); vfd->fops = &video_fops; - if (type == VFL_TYPE_VIDEO) + if (type == VFL_TYPE_VIDEO) { vfd->ioctl_ops = &dev->ext_vv_data->vid_ops; - else + q = &dev->vv_data->video_dmaq.q; + } else { vfd->ioctl_ops = &dev->ext_vv_data->vbi_ops; + q = &dev->vv_data->vbi_dmaq.q; + } vfd->release = video_device_release_empty; vfd->lock = &dev->v4l2_lock; vfd->v4l2_dev = &dev->v4l2_dev; @@ -608,15 +364,36 @@ int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev, for (i = 0; i < dev->ext_vv_data->num_stds; i++) vfd->tvnorms |= dev->ext_vv_data->stds[i].id; strscpy(vfd->name, name, sizeof(vfd->name)); - vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | + vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; vfd->device_caps |= dev->ext_vv_data->capabilities; - if (type == VFL_TYPE_VIDEO) + if (type == VFL_TYPE_VIDEO) { vfd->device_caps &= ~(V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_OUTPUT); - else - vfd->device_caps &= - ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | V4L2_CAP_AUDIO); + } else if (vfd->device_caps & V4L2_CAP_SLICED_VBI_OUTPUT) { + vfd->vfl_dir = VFL_DIR_TX; + vfd->device_caps &= ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | + V4L2_CAP_AUDIO | V4L2_CAP_TUNER); + } else { + vfd->device_caps &= ~V4L2_CAP_VIDEO_CAPTURE; + } + + q->type = type == VFL_TYPE_VIDEO ? V4L2_BUF_TYPE_VIDEO_CAPTURE : V4L2_BUF_TYPE_VBI_CAPTURE; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->io_modes = VB2_MMAP | VB2_READ | VB2_DMABUF; + q->ops = type == VFL_TYPE_VIDEO ? &video_qops : &vbi_qops; + q->mem_ops = &vb2_dma_sg_memops; + q->drv_priv = dev; + q->gfp_flags = __GFP_DMA32; + q->buf_struct_size = sizeof(struct saa7146_buf); + q->lock = &dev->v4l2_lock; + q->min_buffers_needed = 2; + q->dev = &dev->pci->dev; + err = vb2_queue_init(q); + if (err) + return err; + vfd->queue = q; + video_set_drvdata(vfd, dev); err = video_register_device(vfd, type, -1); diff --git a/drivers/media/common/saa7146/saa7146_hlp.c b/drivers/media/common/saa7146/saa7146_hlp.c index 6c9946a402ee..7569d8cdd4d8 100644 --- a/drivers/media/common/saa7146/saa7146_hlp.c +++ b/drivers/media/common/saa7146/saa7146_hlp.c @@ -306,221 +306,6 @@ static int calculate_v_scale_registers(struct saa7146_dev *dev, enum v4l2_field } /* simple bubble-sort algorithm with duplicate elimination */ -static int sort_and_eliminate(u32* values, int* count) -{ - int low = 0, high = 0, top = 0; - int cur = 0, next = 0; - - /* sanity checks */ - if( (0 > *count) || (NULL == values) ) { - return -EINVAL; - } - - /* bubble sort the first @count items of the array @values */ - for( top = *count; top > 0; top--) { - for( low = 0, high = 1; high < top; low++, high++) { - if( values[low] > values[high] ) - swap(values[low], values[high]); - } - } - - /* remove duplicate items */ - for( cur = 0, next = 1; next < *count; next++) { - if( values[cur] != values[next]) - values[++cur] = values[next]; - } - - *count = cur + 1; - - return 0; -} - -static void calculate_clipping_registers_rect(struct saa7146_dev *dev, struct saa7146_fh *fh, - struct saa7146_video_dma *vdma2, u32* clip_format, u32* arbtr_ctrl, enum v4l2_field field) -{ - struct saa7146_vv *vv = dev->vv_data; - __le32 *clipping = vv->d_clipping.cpu_addr; - - int width = vv->ov.win.w.width; - int height = vv->ov.win.w.height; - int clipcount = vv->ov.nclips; - - u32 line_list[32]; - u32 pixel_list[32]; - int numdwords = 0; - - int i = 0, j = 0; - int cnt_line = 0, cnt_pixel = 0; - - int x[32], y[32], w[32], h[32]; - - /* clear out memory */ - memset(&line_list[0], 0x00, sizeof(u32)*32); - memset(&pixel_list[0], 0x00, sizeof(u32)*32); - memset(clipping, 0x00, SAA7146_CLIPPING_MEM); - - /* fill the line and pixel-lists */ - for(i = 0; i < clipcount; i++) { - int l = 0, r = 0, t = 0, b = 0; - - x[i] = vv->ov.clips[i].c.left; - y[i] = vv->ov.clips[i].c.top; - w[i] = vv->ov.clips[i].c.width; - h[i] = vv->ov.clips[i].c.height; - - if( w[i] < 0) { - x[i] += w[i]; w[i] = -w[i]; - } - if( h[i] < 0) { - y[i] += h[i]; h[i] = -h[i]; - } - if( x[i] < 0) { - w[i] += x[i]; x[i] = 0; - } - if( y[i] < 0) { - h[i] += y[i]; y[i] = 0; - } - if( 0 != vv->vflip ) { - y[i] = height - y[i] - h[i]; - } - - l = x[i]; - r = x[i]+w[i]; - t = y[i]; - b = y[i]+h[i]; - - /* insert left/right coordinates */ - pixel_list[ 2*i ] = min_t(int, l, width); - pixel_list[(2*i)+1] = min_t(int, r, width); - /* insert top/bottom coordinates */ - line_list[ 2*i ] = min_t(int, t, height); - line_list[(2*i)+1] = min_t(int, b, height); - } - - /* sort and eliminate lists */ - cnt_line = cnt_pixel = 2*clipcount; - sort_and_eliminate( &pixel_list[0], &cnt_pixel ); - sort_and_eliminate( &line_list[0], &cnt_line ); - - /* calculate the number of used u32s */ - numdwords = max_t(int, (cnt_line+1), (cnt_pixel+1))*2; - numdwords = max_t(int, 4, numdwords); - numdwords = min_t(int, 64, numdwords); - - /* fill up cliptable */ - for(i = 0; i < cnt_pixel; i++) { - clipping[2*i] |= cpu_to_le32(pixel_list[i] << 16); - } - for(i = 0; i < cnt_line; i++) { - clipping[(2*i)+1] |= cpu_to_le32(line_list[i] << 16); - } - - /* fill up cliptable with the display infos */ - for(j = 0; j < clipcount; j++) { - - for(i = 0; i < cnt_pixel; i++) { - - if( x[j] < 0) - x[j] = 0; - - if( pixel_list[i] < (x[j] + w[j])) { - - if ( pixel_list[i] >= x[j] ) { - clipping[2*i] |= cpu_to_le32(1 << j); - } - } - } - for(i = 0; i < cnt_line; i++) { - - if( y[j] < 0) - y[j] = 0; - - if( line_list[i] < (y[j] + h[j]) ) { - - if( line_list[i] >= y[j] ) { - clipping[(2*i)+1] |= cpu_to_le32(1 << j); - } - } - } - } - - /* adjust arbitration control register */ - *arbtr_ctrl &= 0xffff00ff; - *arbtr_ctrl |= 0x00001c00; - - vdma2->base_even = vv->d_clipping.dma_handle; - vdma2->base_odd = vv->d_clipping.dma_handle; - vdma2->prot_addr = vv->d_clipping.dma_handle+((sizeof(u32))*(numdwords)); - vdma2->base_page = 0x04; - vdma2->pitch = 0x00; - vdma2->num_line_byte = (0 << 16 | (sizeof(u32))*(numdwords-1) ); - - /* set clipping-mode. this depends on the field(s) used */ - *clip_format &= 0xfffffff7; - if (V4L2_FIELD_HAS_BOTH(field)) { - *clip_format |= 0x00000008; - } else { - *clip_format |= 0x00000000; - } -} - -/* disable clipping */ -static void saa7146_disable_clipping(struct saa7146_dev *dev) -{ - u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - - /* mask out relevant bits (=lower word)*/ - clip_format &= MASK_W1; - - /* upload clipping-registers*/ - saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format); - saa7146_write(dev, MC2, (MASK_05 | MASK_21)); - - /* disable video dma2 */ - saa7146_write(dev, MC1, MASK_21); -} - -static void saa7146_set_clipping_rect(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - enum v4l2_field field = vv->ov.win.field; - struct saa7146_video_dma vdma2; - u32 clip_format; - u32 arbtr_ctrl; - - /* check clipcount, disable clipping if clipcount == 0*/ - if (vv->ov.nclips == 0) { - saa7146_disable_clipping(dev); - return; - } - - clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); - - calculate_clipping_registers_rect(dev, fh, &vdma2, &clip_format, &arbtr_ctrl, field); - - /* set clipping format */ - clip_format &= 0xffff0008; - clip_format |= (SAA7146_CLIPPING_RECT << 4); - - /* prepare video dma2 */ - saa7146_write(dev, BASE_EVEN2, vdma2.base_even); - saa7146_write(dev, BASE_ODD2, vdma2.base_odd); - saa7146_write(dev, PROT_ADDR2, vdma2.prot_addr); - saa7146_write(dev, BASE_PAGE2, vdma2.base_page); - saa7146_write(dev, PITCH2, vdma2.pitch); - saa7146_write(dev, NUM_LINE_BYTE2, vdma2.num_line_byte); - - /* prepare the rest */ - saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format); - saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); - - /* upload clip_control-register, clipping-registers, enable video dma2 */ - saa7146_write(dev, MC2, (MASK_05 | MASK_21 | MASK_03 | MASK_19)); - saa7146_write(dev, MC1, (MASK_05 | MASK_21)); -} - static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, enum v4l2_field field) { struct saa7146_vv *vv = dev->vv_data; @@ -556,62 +341,6 @@ static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, e saa7146_write(dev, MC2, (MASK_05 | MASK_06 | MASK_21 | MASK_22) ); } -/* calculate the new memory offsets for a desired position */ -static void saa7146_set_position(struct saa7146_dev *dev, int w_x, int w_y, int w_height, enum v4l2_field field, u32 pixelformat) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pixelformat); - - int b_depth = vv->ov_fmt->depth; - int b_bpl = vv->ov_fb.fmt.bytesperline; - /* The unsigned long cast is to remove a 64-bit compile warning since - it looks like a 64-bit address is cast to a 32-bit value, even - though the base pointer is really a 32-bit physical address that - goes into a 32-bit DMA register. - FIXME: might not work on some 64-bit platforms, but see the FIXME - in struct v4l2_framebuffer (videodev2.h) for that. - */ - u32 base = (u32)(unsigned long)vv->ov_fb.base; - - struct saa7146_video_dma vdma1; - - /* calculate memory offsets for picture, look if we shall top-down-flip */ - vdma1.pitch = 2*b_bpl; - if ( 0 == vv->vflip ) { - vdma1.base_even = base + (w_y * (vdma1.pitch/2)) + (w_x * (b_depth / 8)); - vdma1.base_odd = vdma1.base_even + (vdma1.pitch / 2); - vdma1.prot_addr = vdma1.base_even + (w_height * (vdma1.pitch / 2)); - } - else { - vdma1.base_even = base + ((w_y+w_height) * (vdma1.pitch/2)) + (w_x * (b_depth / 8)); - vdma1.base_odd = vdma1.base_even - (vdma1.pitch / 2); - vdma1.prot_addr = vdma1.base_odd - (w_height * (vdma1.pitch / 2)); - } - - if (V4L2_FIELD_HAS_BOTH(field)) { - } else if (field == V4L2_FIELD_ALTERNATE) { - /* fixme */ - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_TOP) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_BOTTOM) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - } - - if ( 0 != vv->vflip ) { - vdma1.pitch *= -1; - } - - vdma1.base_page = sfmt->swap; - vdma1.num_line_byte = (vv->standard->v_field<<16)+vv->standard->h_pixels; - - saa7146_write_out_dma(dev, 1, &vdma1); -} - static void saa7146_set_output_format(struct saa7146_dev *dev, unsigned long palette) { u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); @@ -645,30 +374,6 @@ void saa7146_set_hps_source_and_sync(struct saa7146_dev *dev, int source, int sy } EXPORT_SYMBOL_GPL(saa7146_set_hps_source_and_sync); -int saa7146_enable_overlay(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - saa7146_set_window(dev, vv->ov.win.w.width, vv->ov.win.w.height, vv->ov.win.field); - saa7146_set_position(dev, vv->ov.win.w.left, vv->ov.win.w.top, vv->ov.win.w.height, vv->ov.win.field, vv->ov_fmt->pixelformat); - saa7146_set_output_format(dev, vv->ov_fmt->trans); - saa7146_set_clipping_rect(fh); - - /* enable video dma1 */ - saa7146_write(dev, MC1, (MASK_06 | MASK_22)); - return 0; -} - -void saa7146_disable_overlay(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - - /* disable clipping + video dma1 */ - saa7146_disable_clipping(dev); - saa7146_write(dev, MC1, MASK_22); -} - void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) { int where = 0; @@ -702,14 +407,14 @@ void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_vi static int calculate_video_dma_grab_packed(struct saa7146_dev* dev, struct saa7146_buf *buf) { struct saa7146_vv *vv = dev->vv_data; + struct v4l2_pix_format *pix = &vv->video_fmt; struct saa7146_video_dma vdma1; + struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pix->pixelformat); - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); - - int width = buf->fmt->width; - int height = buf->fmt->height; - int bytesperline = buf->fmt->bytesperline; - enum v4l2_field field = buf->fmt->field; + int width = pix->width; + int height = pix->height; + int bytesperline = pix->bytesperline; + enum v4l2_field field = pix->field; int depth = sfmt->depth; @@ -764,8 +469,9 @@ static int calculate_video_dma_grab_packed(struct saa7146_dev* dev, struct saa71 static int calc_planar_422(struct saa7146_vv *vv, struct saa7146_buf *buf, struct saa7146_video_dma *vdma2, struct saa7146_video_dma *vdma3) { - int height = buf->fmt->height; - int width = buf->fmt->width; + struct v4l2_pix_format *pix = &vv->video_fmt; + int height = pix->height; + int width = pix->width; vdma2->pitch = width; vdma3->pitch = width; @@ -795,8 +501,9 @@ static int calc_planar_422(struct saa7146_vv *vv, struct saa7146_buf *buf, struc static int calc_planar_420(struct saa7146_vv *vv, struct saa7146_buf *buf, struct saa7146_video_dma *vdma2, struct saa7146_video_dma *vdma3) { - int height = buf->fmt->height; - int width = buf->fmt->width; + struct v4l2_pix_format *pix = &vv->video_fmt; + int height = pix->height; + int width = pix->width; vdma2->pitch = width/2; vdma3->pitch = width/2; @@ -825,19 +532,20 @@ static int calc_planar_420(struct saa7146_vv *vv, struct saa7146_buf *buf, struc static int calculate_video_dma_grab_planar(struct saa7146_dev* dev, struct saa7146_buf *buf) { struct saa7146_vv *vv = dev->vv_data; + struct v4l2_pix_format *pix = &vv->video_fmt; struct saa7146_video_dma vdma1; struct saa7146_video_dma vdma2; struct saa7146_video_dma vdma3; + struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pix->pixelformat); - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); + int width = pix->width; + int height = pix->height; + enum v4l2_field field = pix->field; - int width = buf->fmt->width; - int height = buf->fmt->height; - enum v4l2_field field = buf->fmt->field; - - BUG_ON(0 == buf->pt[0].dma); - BUG_ON(0 == buf->pt[1].dma); - BUG_ON(0 == buf->pt[2].dma); + if (WARN_ON(!buf->pt[0].dma) || + WARN_ON(!buf->pt[1].dma) || + WARN_ON(!buf->pt[2].dma)) + return -1; DEB_CAP("[size=%dx%d,fields=%s]\n", width, height, v4l2_field_names[field]); @@ -994,10 +702,27 @@ static void program_capture_engine(struct saa7146_dev *dev, int planar) WRITE_RPS0(CMD_STOP); } +/* disable clipping */ +static void saa7146_disable_clipping(struct saa7146_dev *dev) +{ + u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); + + /* mask out relevant bits (=lower word)*/ + clip_format &= MASK_W1; + + /* upload clipping-registers*/ + saa7146_write(dev, CLIP_FORMAT_CTRL, clip_format); + saa7146_write(dev, MC2, (MASK_05 | MASK_21)); + + /* disable video dma2 */ + saa7146_write(dev, MC1, MASK_21); +} + void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next) { - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); struct saa7146_vv *vv = dev->vv_data; + struct v4l2_pix_format *pix = &vv->video_fmt; + struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pix->pixelformat); u32 vdma1_prot_addr; DEB_CAP("buf:%p, next:%p\n", buf, next); @@ -1009,7 +734,7 @@ void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struc saa7146_write(dev, MC2, MASK_27 ); } - saa7146_set_window(dev, buf->fmt->width, buf->fmt->height, buf->fmt->field); + saa7146_set_window(dev, pix->width, pix->height, pix->field); saa7146_set_output_format(dev, sfmt->trans); saa7146_disable_clipping(dev); diff --git a/drivers/media/common/saa7146/saa7146_vbi.c b/drivers/media/common/saa7146/saa7146_vbi.c index bd442b984423..bb7d81f7eba6 100644 --- a/drivers/media/common/saa7146/saa7146_vbi.c +++ b/drivers/media/common/saa7146/saa7146_vbi.c @@ -207,7 +207,6 @@ static int buffer_activate(struct saa7146_dev *dev, struct saa7146_buf *next) { struct saa7146_vv *vv = dev->vv_data; - buf->vb.state = VIDEOBUF_ACTIVE; DEB_VBI("dev:%p, buf:%p, next:%p\n", dev, buf, next); saa7146_set_vbi_capture(dev,buf,next); @@ -216,114 +215,101 @@ static int buffer_activate(struct saa7146_dev *dev, return 0; } -static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,enum v4l2_field field) -{ - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; +/* ------------------------------------------------------------------ */ - int err = 0; - int lines, llength, size; +static int queue_setup(struct vb2_queue *q, + unsigned int *num_buffers, unsigned int *num_planes, + unsigned int sizes[], struct device *alloc_devs[]) +{ + unsigned int size = 16 * 2 * vbi_pixel_to_capture; - lines = 16 * 2 ; /* 2 fields */ - llength = vbi_pixel_to_capture; - size = lines * llength; + if (*num_planes) + return sizes[0] < size ? -EINVAL : 0; + *num_planes = 1; + sizes[0] = size; - DEB_VBI("vb:%p\n", vb); + return 0; +} - if (0 != buf->vb.baddr && buf->vb.bsize < size) { - DEB_VBI("size mismatch\n"); - return -EINVAL; - } +static void buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vb2_queue *vq = vb->vb2_queue; + struct saa7146_dev *dev = vb2_get_drv_priv(vq); + struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb); + unsigned long flags; - if (buf->vb.size != size) - saa7146_dma_free(dev,q,buf); + spin_lock_irqsave(&dev->slock, flags); - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); + saa7146_buffer_queue(dev, &dev->vv_data->vbi_dmaq, buf); + spin_unlock_irqrestore(&dev->slock, flags); +} - buf->vb.width = llength; - buf->vb.height = lines; - buf->vb.size = size; - buf->vb.field = field; // FIXME: check this +static int buf_init(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb); + struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0); + struct scatterlist *list = sgt->sgl; + int length = sgt->nents; + struct vb2_queue *vq = vb->vb2_queue; + struct saa7146_dev *dev = vb2_get_drv_priv(vq); + int ret; - saa7146_pgtable_free(dev->pci, &buf->pt[2]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); - - err = videobuf_iolock(q,&buf->vb, NULL); - if (err) - goto oops; - err = saa7146_pgtable_build_single(dev->pci, &buf->pt[2], - dma->sglist, dma->sglen); - if (0 != err) - return err; - } - buf->vb.state = VIDEOBUF_PREPARED; buf->activate = buffer_activate; - return 0; - - oops: - DEB_VBI("error out\n"); - saa7146_dma_free(dev,q,buf); + saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); - return err; + ret = saa7146_pgtable_build_single(dev->pci, &buf->pt[2], + list, length); + if (ret) + saa7146_pgtable_free(dev->pci, &buf->pt[2]); + return ret; } -static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) +static int buf_prepare(struct vb2_buffer *vb) { - int llength,lines; - - lines = 16 * 2 ; /* 2 fields */ - llength = vbi_pixel_to_capture; - - *size = lines * llength; - *count = 2; - - DEB_VBI("count:%d, size:%d\n", *count, *size); + unsigned int size = 16 * 2 * vbi_pixel_to_capture; + if (vb2_plane_size(vb, 0) < size) + return -EINVAL; + vb2_set_plane_payload(vb, 0, size); return 0; } -static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) +static void buf_cleanup(struct vb2_buffer *vb) { - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb); + struct vb2_queue *vq = vb->vb2_queue; + struct saa7146_dev *dev = vb2_get_drv_priv(vq); - DEB_VBI("vb:%p\n", vb); - saa7146_buffer_queue(dev, &vv->vbi_dmaq, buf); + saa7146_pgtable_free(dev->pci, &buf->pt[2]); } -static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) +static void return_buffers(struct vb2_queue *q, int state) { - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - - DEB_VBI("vb:%p\n", vb); - saa7146_dma_free(dev,q,buf); + struct saa7146_dev *dev = vb2_get_drv_priv(q); + struct saa7146_dmaqueue *dq = &dev->vv_data->vbi_dmaq; + struct saa7146_buf *buf; + + if (dq->curr) { + buf = dq->curr; + dq->curr = NULL; + vb2_buffer_done(&buf->vb.vb2_buf, state); + } + while (!list_empty(&dq->queue)) { + buf = list_entry(dq->queue.next, struct saa7146_buf, list); + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, state); + } } -static const struct videobuf_queue_ops vbi_qops = { - .buf_setup = buffer_setup, - .buf_prepare = buffer_prepare, - .buf_queue = buffer_queue, - .buf_release = buffer_release, -}; - -/* ------------------------------------------------------------------ */ - -static void vbi_stop(struct saa7146_fh *fh, struct file *file) +static void vbi_stop(struct saa7146_dev *dev) { - struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; unsigned long flags; - DEB_VBI("dev:%p, fh:%p\n", dev, fh); + DEB_VBI("dev:%p\n", dev); spin_lock_irqsave(&dev->slock,flags); @@ -336,13 +322,6 @@ static void vbi_stop(struct saa7146_fh *fh, struct file *file) /* shut down dma 3 transfers */ saa7146_write(dev, MC1, MASK_20); - if (vv->vbi_dmaq.curr) - saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE); - - videobuf_queue_cancel(&fh->vbi_q); - - vv->vbi_streaming = NULL; - del_timer(&vv->vbi_dmaq.timeout); del_timer(&vv->vbi_read_timeout); @@ -352,38 +331,22 @@ static void vbi_stop(struct saa7146_fh *fh, struct file *file) static void vbi_read_timeout(struct timer_list *t) { struct saa7146_vv *vv = from_timer(vv, t, vbi_read_timeout); - struct file *file = vv->vbi_read_timeout_file; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - - DEB_VBI("dev:%p, fh:%p\n", dev, fh); + struct saa7146_dev *dev = vv->vbi_dmaq.dev; - vbi_stop(fh, file); -} - -static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv) -{ DEB_VBI("dev:%p\n", dev); - INIT_LIST_HEAD(&vv->vbi_dmaq.queue); - - timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0); - vv->vbi_dmaq.dev = dev; - - init_waitqueue_head(&vv->vbi_wq); + vbi_stop(dev); } -static int vbi_open(struct saa7146_dev *dev, struct file *file) +static int vbi_begin(struct saa7146_dev *dev) { - struct saa7146_fh *fh = file->private_data; - struct saa7146_vv *vv = fh->dev->vv_data; - + struct saa7146_vv *vv = dev->vv_data; u32 arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); int ret = 0; - DEB_VBI("dev:%p, fh:%p\n", dev, fh); + DEB_VBI("dev:%p\n", dev); - ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS); + ret = saa7146_res_get(dev, RESOURCE_DMA3_BRS); if (0 == ret) { DEB_S("cannot get vbi RESOURCE_DMA3_BRS resource\n"); return -EBUSY; @@ -395,15 +358,7 @@ static int vbi_open(struct saa7146_dev *dev, struct file *file) saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); saa7146_write(dev, MC2, (MASK_04|MASK_20)); - videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops, - &dev->pci->dev, &dev->slock, - V4L2_BUF_TYPE_VBI_CAPTURE, - V4L2_FIELD_SEQ_TB, // FIXME: does this really work? - sizeof(struct saa7146_buf), - file, &dev->v4l2_lock); - vv->vbi_read_timeout.function = vbi_read_timeout; - vv->vbi_read_timeout_file = file; /* initialize the brs */ if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) { @@ -422,16 +377,52 @@ static int vbi_open(struct saa7146_dev *dev, struct file *file) return 0; } -static void vbi_close(struct saa7146_dev *dev, struct file *file) +static int start_streaming(struct vb2_queue *q, unsigned int count) { - struct saa7146_fh *fh = file->private_data; - struct saa7146_vv *vv = dev->vv_data; - DEB_VBI("dev:%p, fh:%p\n", dev, fh); + struct saa7146_dev *dev = vb2_get_drv_priv(q); + int ret; + + if (!vb2_is_streaming(&dev->vv_data->vbi_dmaq.q)) + dev->vv_data->seqnr = 0; + ret = vbi_begin(dev); + if (ret) + return_buffers(q, VB2_BUF_STATE_QUEUED); + return ret; +} - if( fh == vv->vbi_streaming ) { - vbi_stop(fh, file); - } - saa7146_res_free(fh, RESOURCE_DMA3_BRS); +static void stop_streaming(struct vb2_queue *q) +{ + struct saa7146_dev *dev = vb2_get_drv_priv(q); + + vbi_stop(dev); + return_buffers(q, VB2_BUF_STATE_ERROR); + saa7146_res_free(dev, RESOURCE_DMA3_BRS); +} + +const struct vb2_ops vbi_qops = { + .queue_setup = queue_setup, + .buf_queue = buf_queue, + .buf_init = buf_init, + .buf_prepare = buf_prepare, + .buf_cleanup = buf_cleanup, + .start_streaming = start_streaming, + .stop_streaming = stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +/* ------------------------------------------------------------------ */ + +static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv) +{ + DEB_VBI("dev:%p\n", dev); + + INIT_LIST_HEAD(&vv->vbi_dmaq.queue); + + timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0); + vv->vbi_dmaq.dev = dev; + + init_waitqueue_head(&vv->vbi_wq); } static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status) @@ -441,10 +432,7 @@ static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status) if (vv->vbi_dmaq.curr) { DEB_VBI("dev:%p, curr:%p\n", dev, vv->vbi_dmaq.curr); - /* this must be += 2, one count for each field */ - vv->vbi_fieldcount+=2; - vv->vbi_dmaq.curr->vb.field_count = vv->vbi_fieldcount; - saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE); + saa7146_buffer_finish(dev, &vv->vbi_dmaq, VB2_BUF_STATE_DONE); } else { DEB_VBI("dev:%p\n", dev); } @@ -453,46 +441,7 @@ static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status) spin_unlock(&dev->slock); } -static ssize_t vbi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - ssize_t ret = 0; - - DEB_VBI("dev:%p, fh:%p\n", dev, fh); - - if( NULL == vv->vbi_streaming ) { - // fixme: check if dma3 is available - // fixme: activate vbi engine here if necessary. (really?) - vv->vbi_streaming = fh; - } - - if( fh != vv->vbi_streaming ) { - DEB_VBI("open %p is already using vbi capture\n", - vv->vbi_streaming); - return -EBUSY; - } - - mod_timer(&vv->vbi_read_timeout, jiffies+BUFFER_TIMEOUT); - ret = videobuf_read_stream(&fh->vbi_q, data, count, ppos, 1, - file->f_flags & O_NONBLOCK); -/* - printk("BASE_ODD3: 0x%08x\n", saa7146_read(dev, BASE_ODD3)); - printk("BASE_EVEN3: 0x%08x\n", saa7146_read(dev, BASE_EVEN3)); - printk("PROT_ADDR3: 0x%08x\n", saa7146_read(dev, PROT_ADDR3)); - printk("PITCH3: 0x%08x\n", saa7146_read(dev, PITCH3)); - printk("BASE_PAGE3: 0x%08x\n", saa7146_read(dev, BASE_PAGE3)); - printk("NUM_LINE_BYTE3: 0x%08x\n", saa7146_read(dev, NUM_LINE_BYTE3)); - printk("BRS_CTRL: 0x%08x\n", saa7146_read(dev, BRS_CTRL)); -*/ - return ret; -} - const struct saa7146_use_ops saa7146_vbi_uops = { .init = vbi_init, - .open = vbi_open, - .release = vbi_close, .irq_done = vbi_irq_done, - .read = vbi_read, }; diff --git a/drivers/media/common/saa7146/saa7146_video.c b/drivers/media/common/saa7146/saa7146_video.c index 2296765079a4..040489e15ea0 100644 --- a/drivers/media/common/saa7146/saa7146_video.c +++ b/drivers/media/common/saa7146/saa7146_video.c @@ -6,17 +6,6 @@ #include <linux/module.h> #include <linux/kernel.h> -static int max_memory = 32; - -module_param(max_memory, int, 0644); -MODULE_PARM_DESC(max_memory, "maximum memory usage for capture buffers (default: 32Mb)"); - -#define IS_CAPTURE_ACTIVE(fh) \ - (((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh)) - -#define IS_OVERLAY_ACTIVE(fh) \ - (((vv->video_status & STATUS_OVERLAY) != 0) && (vv->video_fh == fh)) - /* format descriptions for capture and preview */ static struct saa7146_format formats[] = { { @@ -54,7 +43,7 @@ static struct saa7146_format formats[] = { .pixelformat = V4L2_PIX_FMT_YUV422P, .trans = YUV422_DECOMPOSED, .depth = 16, - .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR, + .flags = FORMAT_IS_PLANAR, }, { .pixelformat = V4L2_PIX_FMT_YVU420, .trans = YUV420_DECOMPOSED, @@ -91,115 +80,18 @@ struct saa7146_format* saa7146_format_by_fourcc(struct saa7146_dev *dev, int fou return NULL; } -static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f); - -int saa7146_start_preview(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct v4l2_format fmt; - int ret = 0, err = 0; - - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - /* check if we have overlay information */ - if (vv->ov.fh == NULL) { - DEB_D("no overlay data available. try S_FMT first.\n"); - return -EAGAIN; - } - - /* check if streaming capture is running */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D("streaming capture is active\n"); - return -EBUSY; - } - - /* check if overlay is running */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - if (vv->video_fh == fh) { - DEB_D("overlay is already active\n"); - return 0; - } - DEB_D("overlay is already active in another open\n"); - return -EBUSY; - } - - if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) { - DEB_D("cannot get necessary overlay resources\n"); - return -EBUSY; - } - - fmt.fmt.win = vv->ov.win; - err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt); - if (0 != err) { - saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - return -EBUSY; - } - vv->ov.win = fmt.fmt.win; - - DEB_D("%dx%d+%d+%d 0x%08x field=%s\n", - vv->ov.win.w.width, vv->ov.win.w.height, - vv->ov.win.w.left, vv->ov.win.w.top, - vv->ov_fmt->pixelformat, v4l2_field_names[vv->ov.win.field]); - - if (0 != (ret = saa7146_enable_overlay(fh))) { - DEB_D("enabling overlay failed: %d\n", ret); - saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - return ret; - } - - vv->video_status = STATUS_OVERLAY; - vv->video_fh = fh; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_start_preview); - -int saa7146_stop_preview(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - /* check if streaming capture is running */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D("streaming capture is active\n"); - return -EBUSY; - } - - /* check if overlay is running at all */ - if ((vv->video_status & STATUS_OVERLAY) == 0) { - DEB_D("no active overlay\n"); - return 0; - } - - if (vv->video_fh != fh) { - DEB_D("overlay is active, but in another open\n"); - return -EBUSY; - } - - vv->video_status = 0; - vv->video_fh = NULL; - - saa7146_disable_overlay(fh); - - saa7146_res_free(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_stop_preview); - /********************************************************************************/ /* common pagetable functions */ static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *buf) { + struct saa7146_vv *vv = dev->vv_data; struct pci_dev *pci = dev->pci; - struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); - struct scatterlist *list = dma->sglist; - int length = dma->sglen; - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); + struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0); + struct scatterlist *list = sgt->sgl; + int length = sgt->nents; + struct v4l2_pix_format *pix = &vv->video_fmt; + struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pix->pixelformat); DEB_EE("dev:%p, buf:%p, sg_len:%d\n", dev, buf, length); @@ -207,31 +99,32 @@ static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *bu struct saa7146_pgtable *pt1 = &buf->pt[0]; struct saa7146_pgtable *pt2 = &buf->pt[1]; struct saa7146_pgtable *pt3 = &buf->pt[2]; + struct sg_dma_page_iter dma_iter; __le32 *ptr1, *ptr2, *ptr3; __le32 fill; - int size = buf->fmt->width*buf->fmt->height; - int i,p,m1,m2,m3,o1,o2; + int size = pix->width * pix->height; + int i, m1, m2, m3, o1, o2; switch( sfmt->depth ) { case 12: { /* create some offsets inside the page table */ - m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1; - m2 = ((size+(size/4)+PAGE_SIZE)/PAGE_SIZE)-1; - m3 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1; - o1 = size%PAGE_SIZE; - o2 = (size+(size/4))%PAGE_SIZE; + m1 = ((size + PAGE_SIZE) / PAGE_SIZE) - 1; + m2 = ((size + (size / 4) + PAGE_SIZE) / PAGE_SIZE) - 1; + m3 = ((size + (size / 2) + PAGE_SIZE) / PAGE_SIZE) - 1; + o1 = size % PAGE_SIZE; + o2 = (size + (size / 4)) % PAGE_SIZE; DEB_CAP("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n", size, m1, m2, m3, o1, o2); break; } case 16: { /* create some offsets inside the page table */ - m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1; - m2 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1; - m3 = ((2*size+PAGE_SIZE)/PAGE_SIZE)-1; - o1 = size%PAGE_SIZE; - o2 = (size+(size/2))%PAGE_SIZE; + m1 = ((size + PAGE_SIZE) / PAGE_SIZE) - 1; + m2 = ((size + (size / 2) + PAGE_SIZE) / PAGE_SIZE) - 1; + m3 = ((2 * size + PAGE_SIZE) / PAGE_SIZE) - 1; + o1 = size % PAGE_SIZE; + o2 = (size + (size / 2)) % PAGE_SIZE; DEB_CAP("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n", size, m1, m2, m3, o1, o2); break; @@ -245,64 +138,37 @@ static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *bu ptr2 = pt2->cpu; ptr3 = pt3->cpu; - /* walk all pages, copy all page addresses to ptr1 */ - for (i = 0; i < length; i++, list++) { - for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr1++) - *ptr1 = cpu_to_le32(sg_dma_address(list) - list->offset); - } -/* - ptr1 = pt1->cpu; - for(j=0;j<40;j++) { - printk("ptr1 %d: 0x%08x\n",j,ptr1[j]); - } -*/ + for_each_sg_dma_page(list, &dma_iter, length, 0) + *ptr1++ = cpu_to_le32(sg_page_iter_dma_address(&dma_iter) - list->offset); /* if we have a user buffer, the first page may not be aligned to a page boundary. */ - pt1->offset = dma->sglist->offset; - pt2->offset = pt1->offset+o1; - pt3->offset = pt1->offset+o2; + pt1->offset = sgt->sgl->offset; + pt2->offset = pt1->offset + o1; + pt3->offset = pt1->offset + o2; /* create video-dma2 page table */ ptr1 = pt1->cpu; - for(i = m1; i <= m2 ; i++, ptr2++) { + for (i = m1; i <= m2; i++, ptr2++) *ptr2 = ptr1[i]; - } - fill = *(ptr2-1); - for(;i<1024;i++,ptr2++) { + fill = *(ptr2 - 1); + for (; i < 1024; i++, ptr2++) *ptr2 = fill; - } /* create video-dma3 page table */ ptr1 = pt1->cpu; - for(i = m2; i <= m3; i++,ptr3++) { + for (i = m2; i <= m3; i++, ptr3++) *ptr3 = ptr1[i]; - } - fill = *(ptr3-1); - for(;i<1024;i++,ptr3++) { + fill = *(ptr3 - 1); + for (; i < 1024; i++, ptr3++) *ptr3 = fill; - } /* finally: finish up video-dma1 page table */ - ptr1 = pt1->cpu+m1; + ptr1 = pt1->cpu + m1; fill = pt1->cpu[m1]; - for(i=m1;i<1024;i++,ptr1++) { + for (i = m1; i < 1024; i++, ptr1++) *ptr1 = fill; - } -/* - ptr1 = pt1->cpu; - ptr2 = pt2->cpu; - ptr3 = pt3->cpu; - for(j=0;j<40;j++) { - printk("ptr1 %d: 0x%08x\n",j,ptr1[j]); - } - for(j=0;j<40;j++) { - printk("ptr2 %d: 0x%08x\n",j,ptr2[j]); - } - for(j=0;j<40;j++) { - printk("ptr3 %d: 0x%08x\n",j,ptr3[j]); - } -*/ } else { struct saa7146_pgtable *pt = &buf->pt[0]; + return saa7146_pgtable_build_single(pci, pt, list, length); } @@ -313,34 +179,14 @@ static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *bu /********************************************************************************/ /* file operations */ -static int video_begin(struct saa7146_fh *fh) +static int video_begin(struct saa7146_dev *dev) { - struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; struct saa7146_format *fmt = NULL; unsigned int resource; - int ret = 0, err = 0; - - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - if ((vv->video_status & STATUS_CAPTURE) != 0) { - if (vv->video_fh == fh) { - DEB_S("already capturing\n"); - return 0; - } - DEB_S("already capturing in another open\n"); - return -EBUSY; - } + int ret = 0; - if ((vv->video_status & STATUS_OVERLAY) != 0) { - DEB_S("warning: suspending overlay video for streaming capture\n"); - vv->ov_suspend = vv->video_fh; - err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ - if (0 != err) { - DEB_D("suspending video failed. aborting\n"); - return err; - } - } + DEB_EE("dev:%p\n", dev); fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat); /* we need to have a valid format set here */ @@ -353,13 +199,9 @@ static int video_begin(struct saa7146_fh *fh) resource = RESOURCE_DMA1_HPS; } - ret = saa7146_res_get(fh, resource); + ret = saa7146_res_get(dev, resource); if (0 == ret) { DEB_S("cannot get capture resource %d\n", resource); - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } return -EBUSY; } @@ -369,37 +211,22 @@ static int video_begin(struct saa7146_fh *fh) /* enable rps0 irqs */ SAA7146_IER_ENABLE(dev, MASK_27); - vv->video_fh = fh; - vv->video_status = STATUS_CAPTURE; - return 0; } -static int video_end(struct saa7146_fh *fh, struct file *file) +static void video_end(struct saa7146_dev *dev) { - struct saa7146_dev *dev = fh->dev; struct saa7146_vv *vv = dev->vv_data; - struct saa7146_dmaqueue *q = &vv->video_dmaq; struct saa7146_format *fmt = NULL; unsigned long flags; unsigned int resource; u32 dmas = 0; - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { - DEB_S("not capturing\n"); - return 0; - } - - if (vv->video_fh != fh) { - DEB_S("capturing, but in another open\n"); - return -EBUSY; - } + DEB_EE("dev:%p\n", dev); fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat); /* we need to have a valid format set here */ if (!fmt) - return -EINVAL; + return; if (0 != (fmt->flags & FORMAT_IS_PLANAR)) { resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS; @@ -419,88 +246,24 @@ static int video_end(struct saa7146_fh *fh, struct file *file) /* shut down all used video dma transfers */ saa7146_write(dev, MC1, dmas); - if (q->curr) - saa7146_buffer_finish(dev, q, VIDEOBUF_DONE); - spin_unlock_irqrestore(&dev->slock, flags); - vv->video_fh = NULL; - vv->video_status = 0; - - saa7146_res_free(fh, resource); - - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - - return 0; + saa7146_res_free(dev, resource); } static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *cap) { - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; + struct saa7146_dev *dev = video_drvdata(file); strscpy((char *)cap->driver, "saa7146 v4l2", sizeof(cap->driver)); strscpy((char *)cap->card, dev->ext->name, sizeof(cap->card)); - cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | + cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; cap->capabilities |= dev->ext_vv_data->capabilities; return 0; } -static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - *fb = vv->ov_fb; - fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; - fb->flags = V4L2_FBUF_FLAG_PRIMARY; - return 0; -} - -static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *fb) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *fmt; - - DEB_EE("VIDIOC_S_FBUF\n"); - - if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) - return -EPERM; - - /* check args */ - fmt = saa7146_format_by_fourcc(dev, fb->fmt.pixelformat); - if (NULL == fmt) - return -EINVAL; - - /* planar formats are not allowed for overlay video, clipping and video dma would clash */ - if (fmt->flags & FORMAT_IS_PLANAR) - DEB_S("planar pixelformat '%4.4s' not allowed for overlay\n", - (char *)&fmt->pixelformat); - - /* check if overlay is running */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - if (vv->video_fh != fh) { - DEB_D("refusing to change framebuffer information while overlay is active in another open\n"); - return -EBUSY; - } - } - - /* ok, accept it */ - vv->ov_fb = *fb; - vv->ov_fmt = fmt; - - if (vv->ov_fb.fmt.bytesperline < vv->ov_fb.fmt.width) { - vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width * fmt->depth / 8; - DEB_D("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline); - } - return 0; -} - static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) { if (f->index >= ARRAY_SIZE(formats)) @@ -543,13 +306,13 @@ int saa7146_s_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_HFLIP: /* fixme: we can support changing VFLIP and HFLIP here... */ - if ((vv->video_status & STATUS_CAPTURE)) + if (vb2_is_busy(&vv->video_dmaq.q)) return -EBUSY; vv->hflip = ctrl->val; break; case V4L2_CID_VFLIP: - if ((vv->video_status & STATUS_CAPTURE)) + if (vb2_is_busy(&vv->video_dmaq.q)) return -EBUSY; vv->vflip = ctrl->val; break; @@ -557,20 +320,13 @@ int saa7146_s_ctrl(struct v4l2_ctrl *ctrl) default: return -EINVAL; } - - if ((vv->video_status & STATUS_OVERLAY) != 0) { /* CHECK: && (vv->video_fh == fh)) */ - struct saa7146_fh *fh = vv->video_fh; - - saa7146_stop_preview(fh); - saa7146_start_preview(fh); - } return 0; } static int vidioc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *parm) { - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; + struct saa7146_dev *dev = video_drvdata(file); struct saa7146_vv *vv = dev->vv_data; if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) @@ -583,25 +339,16 @@ static int vidioc_g_parm(struct file *file, void *fh, static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; + struct saa7146_dev *dev = video_drvdata(file); struct saa7146_vv *vv = dev->vv_data; f->fmt.pix = vv->video_fmt; return 0; } -static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - f->fmt.win = vv->ov.win; - return 0; -} - static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f) { - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; + struct saa7146_dev *dev = video_drvdata(file); struct saa7146_vv *vv = dev->vv_data; f->fmt.vbi = vv->vbi_fmt; @@ -610,7 +357,7 @@ static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; + struct saa7146_dev *dev = video_drvdata(file); struct saa7146_vv *vv = dev->vv_data; struct saa7146_format *fmt; enum v4l2_field field; @@ -634,24 +381,21 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_forma } switch (field) { case V4L2_FIELD_ALTERNATE: - vv->last_field = V4L2_FIELD_TOP; - maxh = maxh / 2; - break; case V4L2_FIELD_TOP: case V4L2_FIELD_BOTTOM: - vv->last_field = V4L2_FIELD_INTERLACED; maxh = maxh / 2; break; - case V4L2_FIELD_INTERLACED: - vv->last_field = V4L2_FIELD_INTERLACED; - break; default: - DEB_D("no known field mode '%d'\n", field); - return -EINVAL; + field = V4L2_FIELD_INTERLACED; + break; } f->fmt.pix.field = field; f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + if (f->fmt.pix.width < 48) + f->fmt.pix.width = 48; + if (f->fmt.pix.height < 32) + f->fmt.pix.height = 32; if (f->fmt.pix.width > maxw) f->fmt.pix.width = maxw; if (f->fmt.pix.height > maxh) @@ -673,169 +417,65 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_forma return 0; } - -static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) +static int vidioc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - struct v4l2_window *win = &f->fmt.win; - enum v4l2_field field; - int maxw, maxh; - - DEB_EE("dev:%p\n", dev); - - if (NULL == vv->ov_fb.base) { - DEB_D("no fb base set\n"); - return -EINVAL; - } - if (NULL == vv->ov_fmt) { - DEB_D("no fb fmt set\n"); - return -EINVAL; - } - if (win->w.width < 48 || win->w.height < 32) { - DEB_D("min width/height. (%d,%d)\n", - win->w.width, win->w.height); - return -EINVAL; - } - if (win->clipcount > 16) { - DEB_D("clipcount too big\n"); - return -EINVAL; - } - - field = win->field; - maxw = vv->standard->h_max_out; - maxh = vv->standard->v_max_out; - - if (V4L2_FIELD_ANY == field) { - field = (win->w.height > maxh / 2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_TOP; - } - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_ALTERNATE: - maxh = maxh / 2; - break; - case V4L2_FIELD_INTERLACED: - break; - default: - DEB_D("no known field mode '%d'\n", field); - return -EINVAL; - } - - win->field = field; - if (win->w.width > maxw) - win->w.width = maxw; - if (win->w.height > maxh) - win->w.height = maxh; - - return 0; -} - -static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f) -{ - struct saa7146_fh *fh = __fh; - struct saa7146_dev *dev = fh->dev; + struct saa7146_dev *dev = video_drvdata(file); struct saa7146_vv *vv = dev->vv_data; int err; - DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh); - if (IS_CAPTURE_ACTIVE(fh) != 0) { + DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p\n", dev); + if (vb2_is_busy(&vv->video_dmaq.q)) { DEB_EE("streaming capture is active\n"); return -EBUSY; } err = vidioc_try_fmt_vid_cap(file, fh, f); if (0 != err) return err; + switch (f->fmt.pix.field) { + case V4L2_FIELD_ALTERNATE: + vv->last_field = V4L2_FIELD_TOP; + break; + default: + vv->last_field = V4L2_FIELD_INTERLACED; + break; + } vv->video_fmt = f->fmt.pix; DEB_EE("set to pixelformat '%4.4s'\n", (char *)&vv->video_fmt.pixelformat); return 0; } -static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f) -{ - struct saa7146_fh *fh = __fh; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - int err; - - DEB_EE("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh); - err = vidioc_try_fmt_vid_overlay(file, fh, f); - if (0 != err) - return err; - vv->ov.win = f->fmt.win; - vv->ov.nclips = f->fmt.win.clipcount; - if (vv->ov.nclips > 16) - vv->ov.nclips = 16; - memcpy(vv->ov.clips, f->fmt.win.clips, - sizeof(struct v4l2_clip) * vv->ov.nclips); - - /* vv->ov.fh is used to indicate that we have valid overlay information, too */ - vv->ov.fh = fh; - - /* check if our current overlay is active */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - saa7146_stop_preview(fh); - saa7146_start_preview(fh); - } - return 0; -} - static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm) { - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; + struct saa7146_dev *dev = video_drvdata(file); struct saa7146_vv *vv = dev->vv_data; *norm = vv->standard->id; return 0; } - /* the saa7146 supfhrts (used in conjunction with the saa7111a for example) - PAL / NTSC / SECAM. if your hardware does not (or does more) - -- override this function in your extension */ -/* - case VIDIOC_ENUMSTD: - { - struct v4l2_standard *e = arg; - if (e->index < 0 ) - return -EINVAL; - if( e->index < dev->ext_vv_data->num_stds ) { - DEB_EE("VIDIOC_ENUMSTD: index:%d\n", e->index); - v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name); - return 0; - } - return -EINVAL; - } - */ - static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) { - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; + struct saa7146_dev *dev = video_drvdata(file); struct saa7146_vv *vv = dev->vv_data; int found = 0; - int err, i; + int i; DEB_EE("VIDIOC_S_STD\n"); - if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) { + for (i = 0; i < dev->ext_vv_data->num_stds; i++) + if (id & dev->ext_vv_data->stds[i].id) + break; + + if (i != dev->ext_vv_data->num_stds && + vv->standard == &dev->ext_vv_data->stds[i]) + return 0; + + if (vb2_is_busy(&vv->video_dmaq.q) || vb2_is_busy(&vv->vbi_dmaq.q)) { DEB_D("cannot change video standard while streaming capture is active\n"); return -EBUSY; } - if ((vv->video_status & STATUS_OVERLAY) != 0) { - vv->ov_suspend = vv->video_fh; - err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ - if (0 != err) { - DEB_D("suspending video failed. aborting\n"); - return err; - } - } - - for (i = 0; i < dev->ext_vv_data->num_stds; i++) - if (id & dev->ext_vv_data->stds[i].id) - break; if (i != dev->ext_vv_data->num_stds) { vv->standard = &dev->ext_vv_data->stds[i]; if (NULL != dev->ext_vv_data->std_callback) @@ -843,11 +483,6 @@ static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) found = 1; } - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - if (!found) { DEB_EE("VIDIOC_S_STD: standard not found\n"); return -EINVAL; @@ -857,138 +492,22 @@ static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) return 0; } -static int vidioc_overlay(struct file *file, void *fh, unsigned int on) -{ - int err; - - DEB_D("VIDIOC_OVERLAY on:%d\n", on); - if (on) - err = saa7146_start_preview(fh); - else - err = saa7146_stop_preview(fh); - return err; -} - -static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b) -{ - struct saa7146_fh *fh = __fh; - - if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_reqbufs(&fh->video_q, b); - if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_reqbufs(&fh->vbi_q, b); - return -EINVAL; -} - -static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf) -{ - struct saa7146_fh *fh = __fh; - - if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_querybuf(&fh->video_q, buf); - if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_querybuf(&fh->vbi_q, buf); - return -EINVAL; -} - -static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) -{ - struct saa7146_fh *fh = __fh; - - if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_qbuf(&fh->video_q, buf); - if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_qbuf(&fh->vbi_q, buf); - return -EINVAL; -} - -static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) -{ - struct saa7146_fh *fh = __fh; - - if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK); - if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK); - return -EINVAL; -} - -static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type) -{ - struct saa7146_fh *fh = __fh; - int err; - - DEB_D("VIDIOC_STREAMON, type:%d\n", type); - - err = video_begin(fh); - if (err) - return err; - if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - return videobuf_streamon(&fh->video_q); - if (type == V4L2_BUF_TYPE_VBI_CAPTURE) - return videobuf_streamon(&fh->vbi_q); - return -EINVAL; -} - -static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type) -{ - struct saa7146_fh *fh = __fh; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - int err; - - DEB_D("VIDIOC_STREAMOFF, type:%d\n", type); - - /* ugly: we need to copy some checks from video_end(), - because videobuf_streamoff() relies on the capture running. - check and fix this */ - if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { - DEB_S("not capturing\n"); - return 0; - } - - if (vv->video_fh != fh) { - DEB_S("capturing, but in another open\n"); - return -EBUSY; - } - - err = -EINVAL; - if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - err = videobuf_streamoff(&fh->video_q); - else if (type == V4L2_BUF_TYPE_VBI_CAPTURE) - err = videobuf_streamoff(&fh->vbi_q); - if (0 != err) { - DEB_D("warning: videobuf_streamoff() failed\n"); - video_end(fh, file); - } else { - err = video_end(fh, file); - } - return err; -} - const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = { .vidioc_querycap = vidioc_querycap, .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, - .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_cap, .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, - .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, - .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, - .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, - - .vidioc_overlay = vidioc_overlay, - .vidioc_g_fbuf = vidioc_g_fbuf, - .vidioc_s_fbuf = vidioc_s_fbuf, - .vidioc_reqbufs = vidioc_reqbufs, - .vidioc_querybuf = vidioc_querybuf, - .vidioc_qbuf = vidioc_qbuf, - .vidioc_dqbuf = vidioc_dqbuf, .vidioc_g_std = vidioc_g_std, .vidioc_s_std = vidioc_s_std, - .vidioc_streamon = vidioc_streamon, - .vidioc_streamoff = vidioc_streamoff, .vidioc_g_parm = vidioc_g_parm, + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; @@ -996,16 +515,18 @@ const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = { const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops = { .vidioc_querycap = vidioc_querycap, .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, - - .vidioc_reqbufs = vidioc_reqbufs, - .vidioc_querybuf = vidioc_querybuf, - .vidioc_qbuf = vidioc_qbuf, - .vidioc_dqbuf = vidioc_dqbuf, + .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, + .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, .vidioc_g_std = vidioc_g_std, .vidioc_s_std = vidioc_s_std, - .vidioc_streamon = vidioc_streamon, - .vidioc_streamoff = vidioc_streamoff, .vidioc_g_parm = vidioc_g_parm, + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; @@ -1019,7 +540,6 @@ static int buffer_activate (struct saa7146_dev *dev, { struct saa7146_vv *vv = dev->vv_data; - buf->vb.state = VIDEOBUF_ACTIVE; saa7146_set_capture(dev,buf,next); mod_timer(&vv->video_dmaq.timeout, jiffies+BUFFER_TIMEOUT); @@ -1033,140 +553,136 @@ static void release_all_pagetables(struct saa7146_dev *dev, struct saa7146_buf * saa7146_pgtable_free(dev->pci, &buf->pt[2]); } -static int buffer_prepare(struct videobuf_queue *q, - struct videobuf_buffer *vb, enum v4l2_field field) +static int queue_setup(struct vb2_queue *q, + unsigned int *num_buffers, unsigned int *num_planes, + unsigned int sizes[], struct device *alloc_devs[]) { - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; - int size,err = 0; - - DEB_CAP("vbuf:%p\n", vb); - - /* sanity checks */ - if (vv->video_fmt.width < 48 || - vv->video_fmt.height < 32 || - vv->video_fmt.width > vv->standard->h_max_out || - vv->video_fmt.height > vv->standard->v_max_out) { - DEB_D("w (%d) / h (%d) out of bounds\n", - vv->video_fmt.width, vv->video_fmt.height); - return -EINVAL; - } + struct saa7146_dev *dev = vb2_get_drv_priv(q); + unsigned int size = dev->vv_data->video_fmt.sizeimage; - size = vv->video_fmt.sizeimage; - if (0 != buf->vb.baddr && buf->vb.bsize < size) { - DEB_D("size mismatch\n"); - return -EINVAL; - } + if (*num_planes) + return sizes[0] < size ? -EINVAL : 0; + *num_planes = 1; + sizes[0] = size; - DEB_CAP("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n", - vv->video_fmt.width, vv->video_fmt.height, - size, v4l2_field_names[vv->video_fmt.field]); - if (buf->vb.width != vv->video_fmt.width || - buf->vb.bytesperline != vv->video_fmt.bytesperline || - buf->vb.height != vv->video_fmt.height || - buf->vb.size != size || - buf->vb.field != field || - buf->vb.field != vv->video_fmt.field || - buf->fmt != &vv->video_fmt) { - saa7146_dma_free(dev,q,buf); - } + return 0; +} - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - struct saa7146_format *sfmt; +static void buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vb2_queue *vq = vb->vb2_queue; + struct saa7146_dev *dev = vb2_get_drv_priv(vq); + struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb); + unsigned long flags; - buf->vb.bytesperline = vv->video_fmt.bytesperline; - buf->vb.width = vv->video_fmt.width; - buf->vb.height = vv->video_fmt.height; - buf->vb.size = size; - buf->vb.field = field; - buf->fmt = &vv->video_fmt; - buf->vb.field = vv->video_fmt.field; + spin_lock_irqsave(&dev->slock, flags); - sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat); + saa7146_buffer_queue(dev, &dev->vv_data->video_dmaq, buf); + spin_unlock_irqrestore(&dev->slock, flags); +} - release_all_pagetables(dev, buf); - if( 0 != IS_PLANAR(sfmt->trans)) { - saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[1]); - saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); - } else { - saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); - } +static int buf_init(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb); + struct vb2_queue *vq = vb->vb2_queue; + struct saa7146_dev *dev = vb2_get_drv_priv(vq); + struct saa7146_vv *vv = dev->vv_data; + struct saa7146_format *sfmt; + int ret; - err = videobuf_iolock(q,&buf->vb, &vv->ov_fb); - if (err) - goto oops; - err = saa7146_pgtable_build(dev,buf); - if (err) - goto oops; - } - buf->vb.state = VIDEOBUF_PREPARED; buf->activate = buffer_activate; + sfmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat); - return 0; - - oops: - DEB_D("error out\n"); - saa7146_dma_free(dev,q,buf); + if (IS_PLANAR(sfmt->trans)) { + saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); + saa7146_pgtable_alloc(dev->pci, &buf->pt[1]); + saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); + } else { + saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); + } - return err; + ret = saa7146_pgtable_build(dev, buf); + if (ret) + release_all_pagetables(dev, buf); + return ret; } -static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) +static int buf_prepare(struct vb2_buffer *vb) { - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_vv *vv = fh->dev->vv_data; - - if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS) - *count = MAX_SAA7146_CAPTURE_BUFFERS; - - *size = vv->video_fmt.sizeimage; + struct vb2_queue *vq = vb->vb2_queue; + struct saa7146_dev *dev = vb2_get_drv_priv(vq); + struct saa7146_vv *vv = dev->vv_data; + unsigned int size = vv->video_fmt.sizeimage; - /* check if we exceed the "max_memory" parameter */ - if( (*count * *size) > (max_memory*1048576) ) { - *count = (max_memory*1048576) / *size; - } + if (vb2_plane_size(vb, 0) < size) + return -EINVAL; + vb2_set_plane_payload(vb, 0, size); + return 0; +} - DEB_CAP("%d buffers, %d bytes each\n", *count, *size); +static void buf_cleanup(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb); + struct vb2_queue *vq = vb->vb2_queue; + struct saa7146_dev *dev = vb2_get_drv_priv(vq); - return 0; + release_all_pagetables(dev, buf); } -static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) +static void return_buffers(struct vb2_queue *q, int state) { - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; + struct saa7146_dev *dev = vb2_get_drv_priv(q); + struct saa7146_dmaqueue *dq = &dev->vv_data->video_dmaq; + struct saa7146_buf *buf; - DEB_CAP("vbuf:%p\n", vb); - saa7146_buffer_queue(fh->dev, &vv->video_dmaq, buf); + if (dq->curr) { + buf = dq->curr; + dq->curr = NULL; + vb2_buffer_done(&buf->vb.vb2_buf, state); + } + while (!list_empty(&dq->queue)) { + buf = list_entry(dq->queue.next, struct saa7146_buf, list); + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, state); + } } -static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) +static int start_streaming(struct vb2_queue *q, unsigned int count) { - struct file *file = q->priv_data; - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_buf *buf = (struct saa7146_buf *)vb; + struct saa7146_dev *dev = vb2_get_drv_priv(q); + int ret; - DEB_CAP("vbuf:%p\n", vb); + if (!vb2_is_streaming(&dev->vv_data->video_dmaq.q)) + dev->vv_data->seqnr = 0; + ret = video_begin(dev); + if (ret) + return_buffers(q, VB2_BUF_STATE_QUEUED); + return ret; +} - saa7146_dma_free(dev,q,buf); +static void stop_streaming(struct vb2_queue *q) +{ + struct saa7146_dev *dev = vb2_get_drv_priv(q); + struct saa7146_dmaqueue *dq = &dev->vv_data->video_dmaq; - release_all_pagetables(dev, buf); + del_timer(&dq->timeout); + video_end(dev); + return_buffers(q, VB2_BUF_STATE_ERROR); } -static const struct videobuf_queue_ops video_qops = { - .buf_setup = buffer_setup, - .buf_prepare = buffer_prepare, - .buf_queue = buffer_queue, - .buf_release = buffer_release, +const struct vb2_ops video_qops = { + .queue_setup = queue_setup, + .buf_queue = buf_queue, + .buf_init = buf_init, + .buf_prepare = buf_prepare, + .buf_cleanup = buf_cleanup, + .start_streaming = start_streaming, + .stop_streaming = stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, }; /********************************************************************************/ @@ -1187,38 +703,6 @@ static void video_init(struct saa7146_dev *dev, struct saa7146_vv *vv) vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A; } - -static int video_open(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = file->private_data; - - videobuf_queue_sg_init(&fh->video_q, &video_qops, - &dev->pci->dev, &dev->slock, - V4L2_BUF_TYPE_VIDEO_CAPTURE, - V4L2_FIELD_INTERLACED, - sizeof(struct saa7146_buf), - file, &dev->v4l2_lock); - - return 0; -} - - -static void video_close(struct saa7146_dev *dev, struct file *file) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_vv *vv = dev->vv_data; - struct videobuf_queue *q = &fh->video_q; - - if (IS_CAPTURE_ACTIVE(fh) != 0) - video_end(fh, file); - else if (IS_OVERLAY_ACTIVE(fh) != 0) - saa7146_stop_preview(fh); - - videobuf_stop(q); - /* hmm, why is this function declared void? */ -} - - static void video_irq_done(struct saa7146_dev *dev, unsigned long st) { struct saa7146_vv *vv = dev->vv_data; @@ -1228,59 +712,14 @@ static void video_irq_done(struct saa7146_dev *dev, unsigned long st) DEB_CAP("called\n"); /* only finish the buffer if we have one... */ - if( NULL != q->curr ) { - saa7146_buffer_finish(dev,q,VIDEOBUF_DONE); - } + if (q->curr) + saa7146_buffer_finish(dev, q, VB2_BUF_STATE_DONE); saa7146_buffer_next(dev,q,0); spin_unlock(&dev->slock); } -static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ - struct saa7146_fh *fh = file->private_data; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - ssize_t ret = 0; - - DEB_EE("called\n"); - - if ((vv->video_status & STATUS_CAPTURE) != 0) { - /* fixme: should we allow read() captures while streaming capture? */ - if (vv->video_fh == fh) { - DEB_S("already capturing\n"); - return -EBUSY; - } - DEB_S("already capturing in another open\n"); - return -EBUSY; - } - - ret = video_begin(fh); - if( 0 != ret) { - goto out; - } - - ret = videobuf_read_one(&fh->video_q , data, count, ppos, - file->f_flags & O_NONBLOCK); - if (ret != 0) { - video_end(fh, file); - } else { - ret = video_end(fh, file); - } -out: - /* restart overlay if it was active before */ - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - - return ret; -} - const struct saa7146_use_ops saa7146_video_uops = { .init = video_init, - .open = video_open, - .release = video_close, .irq_done = video_irq_done, - .read = video_read, }; |