diff --git a/drivers/media/platform/soc_camera/Kconfig b/drivers/media/platform/soc_camera/Kconfig index 99cf471a5fc01670aadf0598630b16029a7b5091..de1767899ddc602ea1cd25331838cef7cf4ad62a 100644 --- a/drivers/media/platform/soc_camera/Kconfig +++ b/drivers/media/platform/soc_camera/Kconfig @@ -19,8 +19,8 @@ config SOC_CAMERA_PLATFORM config VIDEO_PXA27x tristate "PXA27x Quick Capture Interface driver" - depends on VIDEO_DEV && PXA27x && SOC_CAMERA - select VIDEOBUF_DMA_SG + depends on VIDEO_DEV && PXA27x && SOC_CAMERA && HAS_DMA + select VIDEOBUF2_DMA_SG select SG_SPLIT ---help--- This is a v4l2 driver for the PXA27x Quick Capture Interface diff --git a/drivers/media/platform/soc_camera/pxa_camera.c b/drivers/media/platform/soc_camera/pxa_camera.c index ebbe514d64e20f132df785716c84151a15044ddb..d565bcb9f2d6c83c22dbae3c242f4baf227ac52f 100644 --- a/drivers/media/platform/soc_camera/pxa_camera.c +++ b/drivers/media/platform/soc_camera/pxa_camera.c @@ -34,7 +34,7 @@ #include #include -#include +#include #include #include #include @@ -180,13 +180,16 @@ enum pxa_camera_active_dma { /* buffer for one video frame */ struct pxa_buffer { /* common v4l buffer stuff -- must be first */ - struct videobuf_buffer vb; + struct vb2_v4l2_buffer vbuf; + struct list_head queue; u32 code; + int nb_planes; /* our descriptor lists for Y, U and V channels */ struct dma_async_tx_descriptor *descs[3]; dma_cookie_t cookie[3]; struct scatterlist *sg[3]; int sg_len[3]; + size_t plane_sizes[3]; int inwork; enum pxa_camera_active_dma active_dma; }; @@ -230,59 +233,19 @@ struct pxa_cam { static const char *pxa_cam_driver_description = "PXA_Camera"; -static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ - /* * Videobuf operations */ -static int pxa_videobuf_setup(struct videobuf_queue *vq, unsigned int *count, - unsigned int *size) +static struct pxa_buffer *vb2_to_pxa_buffer(struct vb2_buffer *vb) { - struct soc_camera_device *icd = vq->priv_data; - - dev_dbg(icd->parent, "count=%d, size=%d\n", *count, *size); - - *size = icd->sizeimage; - - if (0 == *count) - *count = 32; - if (*size * *count > vid_limit * 1024 * 1024) - *count = (vid_limit * 1024 * 1024) / *size; + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - return 0; + return container_of(vbuf, struct pxa_buffer, vbuf); } -static void free_buffer(struct videobuf_queue *vq, struct pxa_buffer *buf) +static struct device *pcdev_to_dev(struct pxa_camera_dev *pcdev) { - struct soc_camera_device *icd = vq->priv_data; - struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); - int i; - - BUG_ON(in_interrupt()); - - dev_dbg(icd->parent, "%s (vb=0x%p) 0x%08lx %d\n", __func__, - &buf->vb, buf->vb.baddr, buf->vb.bsize); - - /* - * This waits until this buffer is out of danger, i.e., until it is no - * longer in STATE_QUEUED or STATE_ACTIVE - */ - videobuf_waiton(vq, &buf->vb, 0, 0); - - for (i = 0; i < 3 && buf->descs[i]; i++) { - dmaengine_desc_free(buf->descs[i]); - kfree(buf->sg[i]); - buf->descs[i] = NULL; - buf->sg[i] = NULL; - buf->sg_len[i] = 0; - } - videobuf_dma_unmap(vq->dev, dma); - videobuf_dma_free(dma); - - buf->vb.state = VIDEOBUF_NEEDS_INIT; - - dev_dbg(icd->parent, "%s end (vb=0x%p) 0x%08lx %d\n", __func__, - &buf->vb, buf->vb.baddr, buf->vb.bsize); + return pcdev->soc_host.v4l2_dev.dev; } static void pxa_camera_dma_irq(struct pxa_camera_dev *pcdev, @@ -312,31 +275,26 @@ static void pxa_camera_dma_irq_v(void *data) /** * pxa_init_dma_channel - init dma descriptors * @pcdev: pxa camera device - * @buf: pxa buffer to find pxa dma channel + * @vb: videobuffer2 buffer * @dma: dma video buffer * @channel: dma channel (0 => 'Y', 1 => 'U', 2 => 'V') * @cibr: camera Receive Buffer Register - * @size: bytes to transfer - * @offset: offset in videobuffer of the first byte to transfer * * Prepares the pxa dma descriptors to transfer one camera channel. * * Returns 0 if success or -ENOMEM if no memory is available */ static int pxa_init_dma_channel(struct pxa_camera_dev *pcdev, - struct pxa_buffer *buf, - struct videobuf_dmabuf *dma, int channel, - int cibr, int size, int offset) + struct pxa_buffer *buf, int channel, + struct scatterlist *sg, int sglen) { struct dma_chan *dma_chan = pcdev->dma_chans[channel]; - struct scatterlist *sg = buf->sg[channel]; - int sglen = buf->sg_len[channel]; struct dma_async_tx_descriptor *tx; tx = dmaengine_prep_slave_sg(dma_chan, sg, sglen, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_REUSE); if (!tx) { - dev_err(pcdev->soc_host.v4l2_dev.dev, + dev_err(pcdev_to_dev(pcdev), "dmaengine_prep_slave_sg failed\n"); goto fail; } @@ -357,11 +315,9 @@ static int pxa_init_dma_channel(struct pxa_camera_dev *pcdev, buf->descs[channel] = tx; return 0; fail: - kfree(sg); - - dev_dbg(pcdev->soc_host.v4l2_dev.dev, - "%s (vb=0x%p) dma_tx=%p\n", - __func__, &buf->vb, tx); + dev_dbg(pcdev_to_dev(pcdev), + "%s (vb=%p) dma_tx=%p\n", + __func__, buf, tx); return -ENOMEM; } @@ -374,129 +330,6 @@ static void pxa_videobuf_set_actdma(struct pxa_camera_dev *pcdev, buf->active_dma |= DMA_U | DMA_V; } -/* - * Please check the DMA prepared buffer structure in : - * Documentation/video4linux/pxa_camera.txt - * Please check also in pxa_camera_check_link_miss() to understand why DMA chain - * modification while DMA chain is running will work anyway. - */ -static int pxa_videobuf_prepare(struct videobuf_queue *vq, - struct videobuf_buffer *vb, enum v4l2_field field) -{ - struct soc_camera_device *icd = vq->priv_data; - struct soc_camera_host *ici = to_soc_camera_host(icd->parent); - struct pxa_camera_dev *pcdev = ici->priv; - struct device *dev = pcdev->soc_host.v4l2_dev.dev; - struct pxa_buffer *buf = container_of(vb, struct pxa_buffer, vb); - int ret; - int size_y, size_u = 0, size_v = 0; - size_t sizes[3]; - - dev_dbg(dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__, - vb, vb->baddr, vb->bsize); - - /* Added list head initialization on alloc */ - WARN_ON(!list_empty(&vb->queue)); - -#ifdef DEBUG - /* - * This can be useful if you want to see if we actually fill - * the buffer with something - */ - memset((void *)vb->baddr, 0xaa, vb->bsize); -#endif - - BUG_ON(NULL == icd->current_fmt); - - /* - * I think, in buf_prepare you only have to protect global data, - * the actual buffer is yours - */ - buf->inwork = 1; - - if (buf->code != icd->current_fmt->code || - vb->width != icd->user_width || - vb->height != icd->user_height || - vb->field != field) { - buf->code = icd->current_fmt->code; - vb->width = icd->user_width; - vb->height = icd->user_height; - vb->field = field; - vb->state = VIDEOBUF_NEEDS_INIT; - } - - vb->size = icd->sizeimage; - if (0 != vb->baddr && vb->bsize < vb->size) { - ret = -EINVAL; - goto out; - } - - if (vb->state == VIDEOBUF_NEEDS_INIT) { - int size = vb->size; - struct videobuf_dmabuf *dma = videobuf_to_dma(vb); - - ret = videobuf_iolock(vq, vb, NULL); - if (ret) - goto out; - - if (pcdev->channels == 3) { - size_y = size / 2; - size_u = size_v = size / 4; - } else { - size_y = size; - } - - sizes[0] = size_y; - sizes[1] = size_u; - sizes[2] = size_v; - ret = sg_split(dma->sglist, dma->sglen, 0, pcdev->channels, - sizes, buf->sg, buf->sg_len, GFP_KERNEL); - if (ret < 0) { - dev_err(dev, "sg_split failed: %d\n", ret); - goto fail; - } - - /* init DMA for Y channel */ - ret = pxa_init_dma_channel(pcdev, buf, dma, 0, CIBR0, - size_y, 0); - if (ret) { - dev_err(dev, "DMA initialization for Y/RGB failed\n"); - goto fail; - } - - /* init DMA for U channel */ - if (size_u) - ret = pxa_init_dma_channel(pcdev, buf, dma, 1, CIBR1, - size_u, size_y); - if (ret) { - dev_err(dev, "DMA initialization for U failed\n"); - goto fail; - } - - /* init DMA for V channel */ - if (size_v) - ret = pxa_init_dma_channel(pcdev, buf, dma, 2, CIBR2, - size_v, size_y + size_u); - if (ret) { - dev_err(dev, "DMA initialization for V failed\n"); - goto fail; - } - - vb->state = VIDEOBUF_PREPARED; - } - - buf->inwork = 0; - pxa_videobuf_set_actdma(pcdev, buf); - - return 0; - -fail: - free_buffer(vq, buf); -out: - buf->inwork = 0; - return ret; -} - /** * pxa_dma_start_channels - start DMA channel for active buffer * @pcdev: pxa camera device @@ -512,7 +345,7 @@ static void pxa_dma_start_channels(struct pxa_camera_dev *pcdev) active = pcdev->active; for (i = 0; i < pcdev->channels; i++) { - dev_dbg(pcdev->soc_host.v4l2_dev.dev, + dev_dbg(pcdev_to_dev(pcdev), "%s (channel=%d)\n", __func__, i); dma_async_issue_pending(pcdev->dma_chans[i]); } @@ -523,7 +356,7 @@ static void pxa_dma_stop_channels(struct pxa_camera_dev *pcdev) int i; for (i = 0; i < pcdev->channels; i++) { - dev_dbg(pcdev->soc_host.v4l2_dev.dev, + dev_dbg(pcdev_to_dev(pcdev), "%s (channel=%d)\n", __func__, i); dmaengine_terminate_all(pcdev->dma_chans[i]); } @@ -536,7 +369,7 @@ static void pxa_dma_add_tail_buf(struct pxa_camera_dev *pcdev, for (i = 0; i < pcdev->channels; i++) { buf->cookie[i] = dmaengine_submit(buf->descs[i]); - dev_dbg(pcdev->soc_host.v4l2_dev.dev, + dev_dbg(pcdev_to_dev(pcdev), "%s (channel=%d) : submit vb=%p cookie=%d\n", __func__, i, buf, buf->descs[i]->cookie); } @@ -554,7 +387,7 @@ static void pxa_camera_start_capture(struct pxa_camera_dev *pcdev) { unsigned long cicr0; - dev_dbg(pcdev->soc_host.v4l2_dev.dev, "%s\n", __func__); + dev_dbg(pcdev_to_dev(pcdev), "%s\n", __func__); __raw_writel(__raw_readl(pcdev->base + CISR), pcdev->base + CISR); /* Enable End-Of-Frame Interrupt */ cicr0 = __raw_readl(pcdev->base + CICR0) | CICR0_ENB; @@ -572,72 +405,20 @@ static void pxa_camera_stop_capture(struct pxa_camera_dev *pcdev) __raw_writel(cicr0, pcdev->base + CICR0); pcdev->active = NULL; - dev_dbg(pcdev->soc_host.v4l2_dev.dev, "%s\n", __func__); -} - -/* Called under spinlock_irqsave(&pcdev->lock, ...) */ -static void pxa_videobuf_queue(struct videobuf_queue *vq, - struct videobuf_buffer *vb) -{ - struct soc_camera_device *icd = vq->priv_data; - struct soc_camera_host *ici = to_soc_camera_host(icd->parent); - struct pxa_camera_dev *pcdev = ici->priv; - struct pxa_buffer *buf = container_of(vb, struct pxa_buffer, vb); - - dev_dbg(icd->parent, "%s (vb=0x%p) 0x%08lx %d active=%p\n", - __func__, vb, vb->baddr, vb->bsize, pcdev->active); - - list_add_tail(&vb->queue, &pcdev->capture); - - vb->state = VIDEOBUF_ACTIVE; - pxa_dma_add_tail_buf(pcdev, buf); - - if (!pcdev->active) - pxa_camera_start_capture(pcdev); -} - -static void pxa_videobuf_release(struct videobuf_queue *vq, - struct videobuf_buffer *vb) -{ - struct pxa_buffer *buf = container_of(vb, struct pxa_buffer, vb); -#ifdef DEBUG - struct soc_camera_device *icd = vq->priv_data; - struct device *dev = icd->parent; - - dev_dbg(dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__, - vb, vb->baddr, vb->bsize); - - switch (vb->state) { - case VIDEOBUF_ACTIVE: - dev_dbg(dev, "%s (active)\n", __func__); - break; - case VIDEOBUF_QUEUED: - dev_dbg(dev, "%s (queued)\n", __func__); - break; - case VIDEOBUF_PREPARED: - dev_dbg(dev, "%s (prepared)\n", __func__); - break; - default: - dev_dbg(dev, "%s (unknown)\n", __func__); - break; - } -#endif - - free_buffer(vq, buf); + dev_dbg(pcdev_to_dev(pcdev), "%s\n", __func__); } static void pxa_camera_wakeup(struct pxa_camera_dev *pcdev, - struct videobuf_buffer *vb, struct pxa_buffer *buf) { + struct vb2_buffer *vb = &buf->vbuf.vb2_buf; + /* _init is used to debug races, see comment in pxa_camera_reqbufs() */ - list_del_init(&vb->queue); - vb->state = VIDEOBUF_DONE; - v4l2_get_timestamp(&vb->ts); - vb->field_count++; - wake_up(&vb->done); - dev_dbg(pcdev->soc_host.v4l2_dev.dev, "%s dequeud buffer (vb=0x%p)\n", - __func__, vb); + list_del_init(&buf->queue); + vb->timestamp = ktime_get_ns(); + vb2_buffer_done(vb, VB2_BUF_STATE_DONE); + dev_dbg(pcdev_to_dev(pcdev), "%s dequeud buffer (buf=0x%p)\n", + __func__, buf); if (list_empty(&pcdev->capture)) { pxa_camera_stop_capture(pcdev); @@ -645,7 +426,7 @@ static void pxa_camera_wakeup(struct pxa_camera_dev *pcdev, } pcdev->active = list_entry(pcdev->capture.next, - struct pxa_buffer, vb.queue); + struct pxa_buffer, queue); } /** @@ -670,7 +451,7 @@ static void pxa_camera_check_link_miss(struct pxa_camera_dev *pcdev, { bool is_dma_stopped = last_submitted != last_issued; - dev_dbg(pcdev->soc_host.v4l2_dev.dev, + dev_dbg(pcdev_to_dev(pcdev), "%s : top queued buffer=%p, is_dma_stopped=%d\n", __func__, pcdev->active, is_dma_stopped); @@ -681,12 +462,11 @@ static void pxa_camera_check_link_miss(struct pxa_camera_dev *pcdev, static void pxa_camera_dma_irq(struct pxa_camera_dev *pcdev, enum pxa_camera_active_dma act_dma) { - struct device *dev = pcdev->soc_host.v4l2_dev.dev; + struct device *dev = pcdev_to_dev(pcdev); struct pxa_buffer *buf, *last_buf; unsigned long flags; u32 camera_status, overrun; int chan; - struct videobuf_buffer *vb; enum dma_status last_status; dma_cookie_t last_issued; @@ -714,9 +494,8 @@ static void pxa_camera_dma_irq(struct pxa_camera_dev *pcdev, if (!pcdev->active) goto out; - vb = &pcdev->active->vb; - buf = container_of(vb, struct pxa_buffer, vb); - WARN_ON(buf->inwork || list_empty(&vb->queue)); + buf = pcdev->active; + WARN_ON(buf->inwork || list_empty(&buf->queue)); /* * It's normal if the last frame creates an overrun, as there @@ -734,7 +513,7 @@ static void pxa_camera_dma_irq(struct pxa_camera_dev *pcdev, break; } last_buf = list_entry(pcdev->capture.prev, - struct pxa_buffer, vb.queue); + struct pxa_buffer, queue); last_status = dma_async_is_tx_complete(pcdev->dma_chans[chan], last_buf->cookie[chan], NULL, &last_issued); @@ -743,14 +522,14 @@ static void pxa_camera_dma_irq(struct pxa_camera_dev *pcdev, dev_dbg(dev, "FIFO overrun! CISR: %x\n", camera_status); pxa_camera_stop_capture(pcdev); - list_for_each_entry(buf, &pcdev->capture, vb.queue) + list_for_each_entry(buf, &pcdev->capture, queue) pxa_dma_add_tail_buf(pcdev, buf); pxa_camera_start_capture(pcdev); goto out; } buf->active_dma &= ~act_dma; if (!buf->active_dma) { - pxa_camera_wakeup(pcdev, vb, buf); + pxa_camera_wakeup(pcdev, buf); pxa_camera_check_link_miss(pcdev, last_buf->cookie[chan], last_issued); } @@ -759,26 +538,236 @@ static void pxa_camera_dma_irq(struct pxa_camera_dev *pcdev, spin_unlock_irqrestore(&pcdev->lock, flags); } -static struct videobuf_queue_ops pxa_videobuf_ops = { - .buf_setup = pxa_videobuf_setup, - .buf_prepare = pxa_videobuf_prepare, - .buf_queue = pxa_videobuf_queue, - .buf_release = pxa_videobuf_release, +static void pxa_buffer_cleanup(struct pxa_buffer *buf) +{ + int i; + + for (i = 0; i < 3 && buf->descs[i]; i++) { + dmaengine_desc_free(buf->descs[i]); + kfree(buf->sg[i]); + buf->descs[i] = NULL; + buf->sg[i] = NULL; + buf->sg_len[i] = 0; + buf->plane_sizes[i] = 0; + } + buf->nb_planes = 0; +} + +static int pxa_buffer_init(struct pxa_camera_dev *pcdev, + struct pxa_buffer *buf) +{ + struct vb2_buffer *vb = &buf->vbuf.vb2_buf; + struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0); + int nb_channels = pcdev->channels; + int i, ret = 0; + unsigned long size = vb2_plane_size(vb, 0); + + switch (nb_channels) { + case 1: + buf->plane_sizes[0] = size; + break; + case 3: + buf->plane_sizes[0] = size / 2; + buf->plane_sizes[1] = size / 4; + buf->plane_sizes[2] = size / 4; + break; + default: + return -EINVAL; + }; + buf->nb_planes = nb_channels; + + ret = sg_split(sgt->sgl, sgt->nents, 0, nb_channels, + buf->plane_sizes, buf->sg, buf->sg_len, GFP_KERNEL); + if (ret < 0) { + dev_err(pcdev_to_dev(pcdev), + "sg_split failed: %d\n", ret); + return ret; + } + for (i = 0; i < nb_channels; i++) { + ret = pxa_init_dma_channel(pcdev, buf, i, + buf->sg[i], buf->sg_len[i]); + if (ret) { + pxa_buffer_cleanup(buf); + return ret; + } + } + INIT_LIST_HEAD(&buf->queue); + + return ret; +} + +static void pxac_vb2_cleanup(struct vb2_buffer *vb) +{ + struct pxa_buffer *buf = vb2_to_pxa_buffer(vb); + struct pxa_camera_dev *pcdev = vb2_get_drv_priv(vb->vb2_queue); + + dev_dbg(pcdev_to_dev(pcdev), + "%s(vb=%p)\n", __func__, vb); + pxa_buffer_cleanup(buf); +} + +static void pxac_vb2_queue(struct vb2_buffer *vb) +{ + struct pxa_buffer *buf = vb2_to_pxa_buffer(vb); + struct pxa_camera_dev *pcdev = vb2_get_drv_priv(vb->vb2_queue); + + dev_dbg(pcdev_to_dev(pcdev), + "%s(vb=%p) nb_channels=%d size=%lu active=%p\n", + __func__, vb, pcdev->channels, vb2_get_plane_payload(vb, 0), + pcdev->active); + + list_add_tail(&buf->queue, &pcdev->capture); + + pxa_dma_add_tail_buf(pcdev, buf); +} + +/* + * Please check the DMA prepared buffer structure in : + * Documentation/video4linux/pxa_camera.txt + * Please check also in pxa_camera_check_link_miss() to understand why DMA chain + * modification while DMA chain is running will work anyway. + */ +static int pxac_vb2_prepare(struct vb2_buffer *vb) +{ + struct pxa_camera_dev *pcdev = vb2_get_drv_priv(vb->vb2_queue); + struct pxa_buffer *buf = vb2_to_pxa_buffer(vb); + struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue); + int ret = 0; + + switch (pcdev->channels) { + case 1: + case 3: + vb2_set_plane_payload(vb, 0, icd->sizeimage); + break; + default: + return -EINVAL; + } + + dev_dbg(pcdev_to_dev(pcdev), + "%s (vb=%p) nb_channels=%d size=%lu\n", + __func__, vb, pcdev->channels, vb2_get_plane_payload(vb, 0)); + + WARN_ON(!icd->current_fmt); + +#ifdef DEBUG + /* + * This can be useful if you want to see if we actually fill + * the buffer with something + */ + for (i = 0; i < vb->num_planes; i++) + memset((void *)vb2_plane_vaddr(vb, i), + 0xaa, vb2_get_plane_payload(vb, i)); +#endif + + /* + * I think, in buf_prepare you only have to protect global data, + * the actual buffer is yours + */ + buf->inwork = 0; + pxa_videobuf_set_actdma(pcdev, buf); + + return ret; +} + +static int pxac_vb2_init(struct vb2_buffer *vb) +{ + struct pxa_camera_dev *pcdev = vb2_get_drv_priv(vb->vb2_queue); + struct pxa_buffer *buf = vb2_to_pxa_buffer(vb); + + dev_dbg(pcdev_to_dev(pcdev), + "%s(nb_channels=%d)\n", + __func__, pcdev->channels); + + return pxa_buffer_init(pcdev, buf); +} + +static int pxac_vb2_queue_setup(struct vb2_queue *vq, + unsigned int *nbufs, + unsigned int *num_planes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct pxa_camera_dev *pcdev = vb2_get_drv_priv(vq); + struct soc_camera_device *icd = soc_camera_from_vb2q(vq); + int size = icd->sizeimage; + + dev_dbg(pcdev_to_dev(pcdev), + "%s(vq=%p nbufs=%d num_planes=%d size=%d)\n", + __func__, vq, *nbufs, *num_planes, size); + /* + * Called from VIDIOC_REQBUFS or in compatibility mode For YUV422P + * format, even if there are 3 planes Y, U and V, we reply there is only + * one plane, containing Y, U and V data, one after the other. + */ + if (*num_planes) + return sizes[0] < size ? -EINVAL : 0; + + *num_planes = 1; + switch (pcdev->channels) { + case 1: + case 3: + sizes[0] = size; + break; + default: + return -EINVAL; + } + + if (!*nbufs) + *nbufs = 1; + + return 0; +} + +static int pxac_vb2_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct pxa_camera_dev *pcdev = vb2_get_drv_priv(vq); + + dev_dbg(pcdev_to_dev(pcdev), "%s(count=%d) active=%p\n", + __func__, count, pcdev->active); + + if (!pcdev->active) + pxa_camera_start_capture(pcdev); + + return 0; +} + +static void pxac_vb2_stop_streaming(struct vb2_queue *vq) +{ + vb2_wait_for_all_buffers(vq); +} + +static struct vb2_ops pxac_vb2_ops = { + .queue_setup = pxac_vb2_queue_setup, + .buf_init = pxac_vb2_init, + .buf_prepare = pxac_vb2_prepare, + .buf_queue = pxac_vb2_queue, + .buf_cleanup = pxac_vb2_cleanup, + .start_streaming = pxac_vb2_start_streaming, + .stop_streaming = pxac_vb2_stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, }; -static void pxa_camera_init_videobuf(struct videobuf_queue *q, - struct soc_camera_device *icd) +static int pxa_camera_init_videobuf2(struct vb2_queue *vq, + struct soc_camera_device *icd) { struct soc_camera_host *ici = to_soc_camera_host(icd->parent); struct pxa_camera_dev *pcdev = ici->priv; + int ret; - /* - * We must pass NULL as dev pointer, then all pci_* dma operations - * transform to normal dma_* ones. - */ - videobuf_queue_sg_init(q, &pxa_videobuf_ops, NULL, &pcdev->lock, - V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE, - sizeof(struct pxa_buffer), icd, &ici->host_lock); + vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; + vq->drv_priv = pcdev; + vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + vq->buf_struct_size = sizeof(struct pxa_buffer); + + vq->ops = &pxac_vb2_ops; + vq->mem_ops = &vb2_dma_sg_memops; + + ret = vb2_queue_init(vq); + dev_dbg(pcdev_to_dev(pcdev), + "vb2_queue_init(vq=%p): %d\n", vq, ret); + + return ret; } static u32 mclk_get_divisor(struct platform_device *pdev, @@ -860,9 +849,8 @@ static void pxa_camera_eof(unsigned long arg) struct pxa_camera_dev *pcdev = (struct pxa_camera_dev *)arg; unsigned long cifr; struct pxa_buffer *buf; - struct videobuf_buffer *vb; - dev_dbg(pcdev->soc_host.v4l2_dev.dev, + dev_dbg(pcdev_to_dev(pcdev), "Camera interrupt status 0x%x\n", __raw_readl(pcdev->base + CISR)); @@ -871,9 +859,8 @@ static void pxa_camera_eof(unsigned long arg) __raw_writel(cifr, pcdev->base + CIFR); pcdev->active = list_first_entry(&pcdev->capture, - struct pxa_buffer, vb.queue); - vb = &pcdev->active->vb; - buf = container_of(vb, struct pxa_buffer, vb); + struct pxa_buffer, queue); + buf = pcdev->active; pxa_videobuf_set_actdma(pcdev, buf); pxa_dma_start_channels(pcdev); @@ -885,7 +872,7 @@ static irqreturn_t pxa_camera_irq(int irq, void *data) unsigned long status, cicr0; status = __raw_readl(pcdev->base + CISR); - dev_dbg(pcdev->soc_host.v4l2_dev.dev, + dev_dbg(pcdev_to_dev(pcdev), "Camera interrupt status 0x%lx\n", status); if (!status) @@ -1496,42 +1483,11 @@ static int pxa_camera_try_fmt(struct soc_camera_device *icd, return ret; } -static int pxa_camera_reqbufs(struct soc_camera_device *icd, - struct v4l2_requestbuffers *p) -{ - int i; - - /* - * This is for locking debugging only. I removed spinlocks and now I - * check whether .prepare is ever called on a linked buffer, or whether - * a dma IRQ can occur for an in-work or unlinked buffer. Until now - * it hadn't triggered - */ - for (i = 0; i < p->count; i++) { - struct pxa_buffer *buf = container_of(icd->vb_vidq.bufs[i], - struct pxa_buffer, vb); - buf->inwork = 0; - INIT_LIST_HEAD(&buf->vb.queue); - } - - return 0; -} - static unsigned int pxa_camera_poll(struct file *file, poll_table *pt) { struct soc_camera_device *icd = file->private_data; - struct pxa_buffer *buf; - - buf = list_entry(icd->vb_vidq.stream.next, struct pxa_buffer, - vb.stream); - poll_wait(file, &buf->vb.done, pt); - - if (buf->vb.state == VIDEOBUF_DONE || - buf->vb.state == VIDEOBUF_ERROR) - return POLLIN|POLLRDNORM; - - return 0; + return vb2_poll(&icd->vb2_vidq, file, pt); } static int pxa_camera_querycap(struct soc_camera_host *ici, @@ -1604,8 +1560,7 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = { .put_formats = pxa_camera_put_formats, .set_fmt = pxa_camera_set_fmt, .try_fmt = pxa_camera_try_fmt, - .init_videobuf = pxa_camera_init_videobuf, - .reqbufs = pxa_camera_reqbufs, + .init_videobuf2 = pxa_camera_init_videobuf2, .poll = pxa_camera_poll, .querycap = pxa_camera_querycap, .set_bus_param = pxa_camera_set_bus_param,