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[media] saa7134: store VBI hlen/vlen globally 

Don't calculate this for every buffer, store it globally instead.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2014-04-17 04:55:43 -03:00 committed by Mauro Carvalho Chehab
parent 51aefd738b
commit 01c3a846c5
2 changed files with 18 additions and 21 deletions
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38
drivers/media/pci/saa7134/saa7134-vbi.c
View File

@ -67,10 +67,10 @@ static void task_init(struct saa7134_dev *dev, struct saa7134_buf *buf,
saa_writeb(SAA7134_VBI_PHASE_OFFSET_LUMA(task), 0x00);
saa_writeb(SAA7134_VBI_PHASE_OFFSET_CHROMA(task), 0x00);
saa_writeb(SAA7134_VBI_H_LEN1(task), buf->vb.width & 0xff);
saa_writeb(SAA7134_VBI_H_LEN2(task), buf->vb.width >> 8);
saa_writeb(SAA7134_VBI_V_LEN1(task), buf->vb.height & 0xff);
saa_writeb(SAA7134_VBI_V_LEN2(task), buf->vb.height >> 8);
saa_writeb(SAA7134_VBI_H_LEN1(task), dev->vbi_hlen & 0xff);
saa_writeb(SAA7134_VBI_H_LEN2(task), dev->vbi_hlen >> 8);
saa_writeb(SAA7134_VBI_V_LEN1(task), dev->vbi_vlen & 0xff);
saa_writeb(SAA7134_VBI_V_LEN2(task), dev->vbi_vlen >> 8);
saa_andorb(SAA7134_DATA_PATH(task), 0xc0, 0x00);
}
@ -98,12 +98,12 @@ static int buffer_activate(struct saa7134_dev *dev,
SAA7134_RS_CONTROL_ME |
(buf->pt->dma >> 12);
saa_writel(SAA7134_RS_BA1(2), base);
saa_writel(SAA7134_RS_BA2(2), base + buf->vb.size / 2);
saa_writel(SAA7134_RS_PITCH(2), buf->vb.width);
saa_writel(SAA7134_RS_BA2(2), base + dev->vbi_hlen * dev->vbi_vlen);
saa_writel(SAA7134_RS_PITCH(2), dev->vbi_hlen);
saa_writel(SAA7134_RS_CONTROL(2), control);
saa_writel(SAA7134_RS_BA1(3), base);
saa_writel(SAA7134_RS_BA2(3), base + buf->vb.size / 2);
saa_writel(SAA7134_RS_PITCH(3), buf->vb.width);
saa_writel(SAA7134_RS_BA2(3), base + dev->vbi_hlen * dev->vbi_vlen);
saa_writel(SAA7134_RS_PITCH(3), dev->vbi_hlen);
saa_writel(SAA7134_RS_CONTROL(3), control);
/* start DMA */
@ -119,15 +119,10 @@ static int buffer_prepare(struct videobuf_queue *q,
{
struct saa7134_dev *dev = q->priv_data;
struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
struct saa7134_tvnorm *norm = dev->tvnorm;
unsigned int lines, llength, size;
unsigned int size;
int err;
lines = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
if (lines > VBI_LINE_COUNT)
lines = VBI_LINE_COUNT;
llength = VBI_LINE_LENGTH;
size = lines * llength * 2;
size = dev->vbi_hlen * dev->vbi_vlen * 2;
if (0 != buf->vb.baddr && buf->vb.bsize < size)
return -EINVAL;
@ -137,8 +132,8 @@ static int buffer_prepare(struct videobuf_queue *q,
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
buf->vb.width = llength;
buf->vb.height = lines;
buf->vb.width = dev->vbi_hlen;
buf->vb.height = dev->vbi_vlen;
buf->vb.size = size;
buf->pt = &dev->pt_vbi;
@ -166,11 +161,12 @@ static int
buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
{
struct saa7134_dev *dev = q->priv_data;
int llength,lines;
lines = dev->tvnorm->vbi_v_stop_0 - dev->tvnorm->vbi_v_start_0 +1;
llength = VBI_LINE_LENGTH;
*size = lines * llength * 2;
dev->vbi_vlen = dev->tvnorm->vbi_v_stop_0 - dev->tvnorm->vbi_v_start_0 + 1;
if (dev->vbi_vlen > VBI_LINE_COUNT)
dev->vbi_vlen = VBI_LINE_COUNT;
dev->vbi_hlen = VBI_LINE_LENGTH;
*size = dev->vbi_hlen * dev->vbi_vlen * 2;
if (0 == *count)
*count = vbibufs;
*count = saa7134_buffer_count(*size,*count);

1
drivers/media/pci/saa7134/saa7134.h
View File

@ -600,6 +600,7 @@ struct saa7134_dev {
unsigned int vbi_fieldcount;
struct saa7134_format *fmt;
unsigned int width, height;
unsigned int vbi_hlen, vbi_vlen;
struct pm_qos_request qos_request;
/* various v4l controls */