From c7b0ac0546985fc6361a8d92cf808d46da797677 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 10 Mar 2006 12:29:15 -0300 Subject: V4L/DVB (3516): Make video_buf more generic Video_buf were concerned to allow PCI devices to be used as video capture devices. This patch extends video_buf features by virtualizing pci-dependent functions and allowing other type of devices to use it. It is still DMA centric, although it may be used also by devices that emulates scatter/gather behavior or a DMA device Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx88/cx88-mpeg.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) (limited to 'drivers/media/video/cx88/cx88-mpeg.c') diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c index c79cc1d2bf8b..7d16888b4a86 100644 --- a/drivers/media/video/cx88/cx88-mpeg.c +++ b/drivers/media/video/cx88/cx88-mpeg.c @@ -163,8 +163,8 @@ static int cx8802_restart_queue(struct cx8802_dev *dev, /* ------------------------------------------------------------------ */ -int cx8802_buf_prepare(struct cx8802_dev *dev, struct cx88_buffer *buf, - enum v4l2_field field) +int cx8802_buf_prepare(struct videobuf_queue *q, struct cx8802_dev *dev, + struct cx88_buffer *buf, enum v4l2_field field) { int size = dev->ts_packet_size * dev->ts_packet_count; int rc; @@ -179,7 +179,7 @@ int cx8802_buf_prepare(struct cx8802_dev *dev, struct cx88_buffer *buf, buf->vb.size = size; buf->vb.field = field /*V4L2_FIELD_TOP*/; - if (0 != (rc = videobuf_iolock(dev->pci,&buf->vb,NULL))) + if (0 != (rc = videobuf_iolock(q,&buf->vb,NULL))) goto fail; cx88_risc_databuffer(dev->pci, &buf->risc, buf->vb.dma.sglist, @@ -189,36 +189,36 @@ int cx8802_buf_prepare(struct cx8802_dev *dev, struct cx88_buffer *buf, return 0; fail: - cx88_free_buffer(dev->pci,buf); + cx88_free_buffer(q,buf); return rc; } void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf) { struct cx88_buffer *prev; - struct cx88_dmaqueue *q = &dev->mpegq; + struct cx88_dmaqueue *cx88q = &dev->mpegq; dprintk( 1, "cx8802_buf_queue\n" ); /* add jump to stopper */ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); - buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma); + buf->risc.jmp[1] = cpu_to_le32(cx88q->stopper.dma); - if (list_empty(&q->active)) { + if (list_empty(&cx88q->active)) { dprintk( 0, "queue is empty - first active\n" ); - list_add_tail(&buf->vb.queue,&q->active); - cx8802_start_dma(dev, q, buf); + list_add_tail(&buf->vb.queue,&cx88q->active); + cx8802_start_dma(dev, cx88q, buf); buf->vb.state = STATE_ACTIVE; - buf->count = q->count++; - mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); + buf->count = cx88q->count++; + mod_timer(&cx88q->timeout, jiffies+BUFFER_TIMEOUT); dprintk(0,"[%p/%d] %s - first active\n", buf, buf->vb.i, __FUNCTION__); } else { dprintk( 1, "queue is not empty - append to active\n" ); - prev = list_entry(q->active.prev, struct cx88_buffer, vb.queue); - list_add_tail(&buf->vb.queue,&q->active); + prev = list_entry(cx88q->active.prev, struct cx88_buffer, vb.queue); + list_add_tail(&buf->vb.queue,&cx88q->active); buf->vb.state = STATE_ACTIVE; - buf->count = q->count++; + buf->count = cx88q->count++; prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); dprintk( 1, "[%p/%d] %s - append to active\n", buf, buf->vb.i, __FUNCTION__); -- cgit v1.2.3