Skip to content

Commit

Permalink
V4L/DVB (5329): Some saa7134 cleanups
Browse files Browse the repository at this point in the history
- use generic sort instead of bubblesort
 - removed useless saa7134_video_fini function
 - small coding style changes

Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
  • Loading branch information
Heikki Orsila authored and Mauro Carvalho Chehab committed Apr 27, 2007
1 parent 80f90fb commit 9040b32
Show file tree
Hide file tree
Showing 3 changed files with 28 additions and 50 deletions.
1 change: 0 additions & 1 deletion drivers/media/video/saa7134/saa7134-core.c
Original file line number Diff line number Diff line change
Expand Up @@ -734,7 +734,6 @@ static int saa7134_hwfini(struct saa7134_dev *dev)
saa7134_ts_fini(dev);
saa7134_input_fini(dev);
saa7134_vbi_fini(dev);
saa7134_video_fini(dev);
saa7134_tvaudio_fini(dev);
return 0;
}
Expand Down
76 changes: 28 additions & 48 deletions drivers/media/video/saa7134/saa7134-video.c
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/sort.h>

#include "saa7134-reg.h"
#include "saa7134.h"
Expand Down Expand Up @@ -516,14 +517,12 @@ static int res_get(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int
return 1;
}

static
int res_check(struct saa7134_fh *fh, unsigned int bit)
static int res_check(struct saa7134_fh *fh, unsigned int bit)
{
return (fh->resources & bit);
}

static
int res_locked(struct saa7134_dev *dev, unsigned int bit)
static int res_locked(struct saa7134_dev *dev, unsigned int bit)
{
return (dev->resources & bit);
}
Expand Down Expand Up @@ -739,25 +738,6 @@ struct cliplist {
__u8 disable;
};

static void sort_cliplist(struct cliplist *cl, int entries)
{
struct cliplist swap;
int i,j,n;

for (i = entries-2; i >= 0; i--) {
for (n = 0, j = 0; j <= i; j++) {
if (cl[j].position > cl[j+1].position) {
swap = cl[j];
cl[j] = cl[j+1];
cl[j+1] = swap;
n++;
}
}
if (0 == n)
break;
}
}

static void set_cliplist(struct saa7134_dev *dev, int reg,
struct cliplist *cl, int entries, char *name)
{
Expand Down Expand Up @@ -791,15 +771,27 @@ static int clip_range(int val)
return val;
}

/* Sort into smallest position first order */
static int cliplist_cmp(const void *a, const void *b)
{
const struct cliplist *cla = a;
const struct cliplist *clb = b;
if (cla->position < clb->position)
return -1;
if (cla->position > clb->position)
return 1;
return 0;
}

static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
int nclips, int interlace)
{
struct cliplist col[16], row[16];
int cols, rows, i;
int cols = 0, rows = 0, i;
int div = interlace ? 2 : 1;

memset(col,0,sizeof(col)); cols = 0;
memset(row,0,sizeof(row)); rows = 0;
memset(col, 0, sizeof(col));
memset(row, 0, sizeof(row));
for (i = 0; i < nclips && i < 8; i++) {
col[cols].position = clip_range(clips[i].c.left);
col[cols].enable = (1 << i);
Expand All @@ -815,8 +807,8 @@ static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
row[rows].disable = (1 << i);
rows++;
}
sort_cliplist(col,cols);
sort_cliplist(row,rows);
sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
set_cliplist(dev,0x380,col,cols,"cols");
set_cliplist(dev,0x384,row,rows,"rows");
return 0;
Expand Down Expand Up @@ -1268,19 +1260,14 @@ static struct videobuf_queue* saa7134_queue(struct saa7134_fh *fh)

static int saa7134_resource(struct saa7134_fh *fh)
{
int res = 0;
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
return RESOURCE_VIDEO;

switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
res = RESOURCE_VIDEO;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
res = RESOURCE_VBI;
break;
default:
BUG();
}
return res;
if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
return RESOURCE_VBI;

BUG();
return 0;
}

static int video_open(struct inode *inode, struct file *file)
Expand Down Expand Up @@ -1468,8 +1455,7 @@ static int video_release(struct inode *inode, struct file *file)
return 0;
}

static int
video_mmap(struct file *file, struct vm_area_struct * vma)
static int video_mmap(struct file *file, struct vm_area_struct * vma)
{
struct saa7134_fh *fh = file->private_data;

Expand Down Expand Up @@ -2468,12 +2454,6 @@ int saa7134_video_init2(struct saa7134_dev *dev)
return 0;
}

int saa7134_video_fini(struct saa7134_dev *dev)
{
/* nothing */
return 0;
}

void saa7134_irq_video_intl(struct saa7134_dev *dev)
{
static const char *st[] = {
Expand Down
1 change: 0 additions & 1 deletion drivers/media/video/saa7134/saa7134.h
Original file line number Diff line number Diff line change
Expand Up @@ -626,7 +626,6 @@ int saa7134_common_ioctl(struct saa7134_dev *dev,

int saa7134_video_init1(struct saa7134_dev *dev);
int saa7134_video_init2(struct saa7134_dev *dev);
int saa7134_video_fini(struct saa7134_dev *dev);
void saa7134_irq_video_intl(struct saa7134_dev *dev);
void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status);

Expand Down

0 comments on commit 9040b32

Please sign in to comment.