diff options
Diffstat (limited to 'drivers/media/video/vivi.c')
-rw-r--r-- | drivers/media/video/vivi.c | 185 |
1 files changed, 46 insertions, 139 deletions
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index f6d3a9460ccc..b532aa280a1b 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -33,7 +33,7 @@ #include <linux/videodev.h> #endif #include <linux/interrupt.h> -#include <media/video-buf.h> +#include <media/videobuf-vmalloc.h> #include <media/v4l2-common.h> #include <linux/kthread.h> #include <linux/highmem.h> @@ -145,7 +145,6 @@ struct vivi_buffer { struct videobuf_buffer vb; struct vivi_fmt *fmt; - }; struct vivi_dmaqueue { @@ -171,7 +170,6 @@ struct vivi_dev { int users; /* various device info */ - unsigned int resources; struct video_device vfd; struct vivi_dmaqueue vidq; @@ -230,9 +228,8 @@ static u8 bars[8][3] = { #define TSTAMP_MAX_Y TSTAMP_MIN_Y+15 #define TSTAMP_MIN_X 64 - static void gen_line(char *basep,int inipos,int wmax, - int hmax, int line, char *timestr) + int hmax, int line, int count, char *timestr) { int w,i,j,pos=inipos,y; char *p,*s; @@ -243,9 +240,10 @@ static void gen_line(char *basep,int inipos,int wmax, /* Generate a standard color bar pattern */ for (w=0;w<wmax;w++) { - r=bars[w*7/wmax][0]; - g=bars[w*7/wmax][1]; - b=bars[w*7/wmax][2]; + int colorpos=((w+count)*8/(wmax+1)) % 8; + r=bars[colorpos][0]; + g=bars[colorpos][1]; + b=bars[colorpos][2]; for (color=0;color<4;color++) { p=basep+pos; @@ -326,27 +324,27 @@ static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf) int hmax = buf->vb.height; int wmax = buf->vb.width; struct timeval ts; - char *tmpbuf; - - if (buf->vb.dma.varea) { - tmpbuf=kmalloc (wmax*2, GFP_KERNEL); - } else { - tmpbuf=buf->vb.dma.vmalloc; - } + char *tmpbuf = kmalloc(wmax*2,GFP_KERNEL); + void *vbuf=videobuf_to_vmalloc (&buf->vb); + /* FIXME: move to dev struct */ + static int mv_count=0; + if (!tmpbuf) + return; for (h=0;h<hmax;h++) { - if (buf->vb.dma.varea) { - gen_line(tmpbuf,0,wmax,hmax,h,dev->timestr); - /* FIXME: replacing to __copy_to_user */ - if (copy_to_user(buf->vb.dma.varea+pos,tmpbuf,wmax*2)!=0) - dprintk(2,"vivifill copy_to_user failed.\n"); - } else { - gen_line(tmpbuf,pos,wmax,hmax,h,dev->timestr); - } + gen_line(tmpbuf,0,wmax,hmax,h,mv_count, + dev->timestr); + /* FIXME: replacing to __copy_to_user */ + if (copy_to_user(vbuf+pos,tmpbuf,wmax*2)!=0) + dprintk(2,"vivifill copy_to_user failed.\n"); pos += wmax*2; } + mv_count++; + + kfree(tmpbuf); + /* Updates stream time */ dev->us+=jiffies_to_usecs(jiffies-dev->jiffies); @@ -369,7 +367,7 @@ static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf) dev->h,dev->m,dev->s,(dev->us+500)/1000); dprintk(2,"vivifill at %s: Buffer 0x%08lx size= %d\n",dev->timestr, - (unsigned long)buf->vb.dma.varea,pos); + (unsigned long)tmpbuf,pos); /* Advice that buffer was filled */ buf->vb.state = STATE_DONE; @@ -509,7 +507,6 @@ static void vivi_stop_thread(struct vivi_dmaqueue *dma_q) static int restart_video_queue(struct vivi_dmaqueue *dma_q) { struct vivi_buffer *buf, *prev; - struct list_head *item; dprintk(1,"%s dma_q=0x%08lx\n",__FUNCTION__,(unsigned long)dma_q); @@ -523,9 +520,7 @@ static int restart_video_queue(struct vivi_dmaqueue *dma_q) // vivi_start_thread(dma_q); /* cancel all outstanding capture / vbi requests */ - list_for_each(item,&dma_q->active) { - buf = list_entry(item, struct vivi_buffer, vb.queue); - + list_for_each_entry_safe(buf, prev, &dma_q->active, vb.queue) { list_del(&buf->vb.queue); buf->vb.state = STATE_ERROR; wake_up(&buf->vb.done); @@ -597,8 +592,12 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) if (0 == *count) *count = 32; + while (*size * *count > vid_limit * 1024 * 1024) (*count)--; + + dprintk(1,"%s, count=%d, size=%d\n",__FUNCTION__,*count, *size); + return 0; } @@ -609,10 +608,8 @@ static void free_buffer(struct videobuf_queue *vq, struct vivi_buffer *buf) if (in_interrupt()) BUG(); - videobuf_waiton(&buf->vb,0,0); - videobuf_dma_unmap(vq, &buf->vb.dma); - videobuf_dma_free(&buf->vb.dma); + videobuf_vmalloc_free(&buf->vb); buf->vb.state = STATE_NEEDS_INIT; } @@ -626,7 +623,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, struct vivi_buffer *buf = container_of(vb,struct vivi_buffer,vb); int rc, init_buffer = 0; -// dprintk(1,"%s, field=%d\n",__FUNCTION__,field); + dprintk(1,"%s, field=%d\n",__FUNCTION__,field); BUG_ON(NULL == fh->fmt); if (fh->width < 48 || fh->width > norm_maxw() || @@ -718,54 +715,14 @@ static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb free_buffer(vq,buf); } - static struct videobuf_queue_ops vivi_video_qops = { .buf_setup = buffer_setup, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue, .buf_release = buffer_release, - - /* Non-pci handling routines */ -// .vb_map_sg = vivi_map_sg, -// .vb_dma_sync_sg = vivi_dma_sync_sg, -// .vb_unmap_sg = vivi_unmap_sg, }; /* ------------------------------------------------------------------ - IOCTL handling - ------------------------------------------------------------------*/ - - -static int res_get(struct vivi_dev *dev, struct vivi_fh *fh) -{ - /* is it free? */ - mutex_lock(&dev->lock); - if (dev->resources) { - /* no, someone else uses it */ - mutex_unlock(&dev->lock); - return 0; - } - /* it's free, grab it */ - dev->resources =1; - dprintk(1,"res: get\n"); - mutex_unlock(&dev->lock); - return 1; -} - -static int res_locked(struct vivi_dev *dev) -{ - return (dev->resources); -} - -static void res_free(struct vivi_dev *dev, struct vivi_fh *fh) -{ - mutex_lock(&dev->lock); - dev->resources = 0; - dprintk(1,"res: put\n"); - mutex_lock(&dev->lock); -} - -/* ------------------------------------------------------------------ IOCTL vidioc handling ------------------------------------------------------------------*/ static int vidioc_querycap (struct file *file, void *priv, @@ -825,8 +782,7 @@ static int vidioc_try_fmt_cap (struct file *file, void *priv, field = f->fmt.pix.field; if (field == V4L2_FIELD_ANY) { -// field=V4L2_FIELD_INTERLACED; - field=V4L2_FIELD_SEQ_TB; + field=V4L2_FIELD_INTERLACED; } else if (V4L2_FIELD_INTERLACED != field) { dprintk(1,"Field type invalid.\n"); return -EINVAL; @@ -904,57 +860,33 @@ static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p) static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf) { struct vivi_fh *fh=priv; - struct videobuf_queue *q=&fh->vb_vidq; - struct v4l2_requestbuffers req; - unsigned int i; - int ret; - - req.type = q->type; - req.count = 8; - req.memory = V4L2_MEMORY_MMAP; - ret = videobuf_reqbufs(q,&req); - if (ret < 0) - return (ret); - mbuf->frames = req.count; - mbuf->size = 0; - for (i = 0; i < mbuf->frames; i++) { - mbuf->offsets[i] = q->bufs[i]->boff; - mbuf->size += q->bufs[i]->bsize; - } - return (0); + return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8); } #endif static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) { struct vivi_fh *fh=priv; - struct vivi_dev *dev = fh->dev; if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; if (i != fh->type) return -EINVAL; - if (!res_get(dev,fh)) - return -EBUSY; - return (videobuf_streamon(&fh->vb_vidq)); + return videobuf_streamon(&fh->vb_vidq); } static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) { struct vivi_fh *fh=priv; - struct vivi_dev *dev = fh->dev; if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; if (i != fh->type) return -EINVAL; - videobuf_streamoff(&fh->vb_vidq); - res_free(dev,fh); - - return (0); + return videobuf_streamoff(&fh->vb_vidq); } static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *i) @@ -1047,31 +979,25 @@ static int vidioc_s_ctrl (struct file *file, void *priv, static int vivi_open(struct inode *inode, struct file *file) { int minor = iminor(inode); - struct vivi_dev *h,*dev = NULL; + struct vivi_dev *dev; struct vivi_fh *fh; - struct list_head *list; - enum v4l2_buf_type type = 0; int i; printk(KERN_DEBUG "vivi: open called (minor=%d)\n",minor); - list_for_each(list,&vivi_devlist) { - h = list_entry(list, struct vivi_dev, vivi_devlist); - if (h->vfd.minor == minor) { - dev = h; - type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - } - } - if (NULL == dev) - return -ENODEV; + list_for_each_entry(dev, &vivi_devlist, vivi_devlist) + if (dev->vfd.minor == minor) + goto found; + return -ENODEV; +found: /* If more than one user, mutex should be added */ dev->users++; - dprintk(1,"open minor=%d type=%s users=%d\n", - minor,v4l2_type_names[type],dev->users); + dprintk(1, "open minor=%d type=%s users=%d\n", minor, + v4l2_type_names[V4L2_BUF_TYPE_VIDEO_CAPTURE], dev->users); /* allocate + initialize per filehandle data */ fh = kzalloc(sizeof(*fh),GFP_KERNEL); @@ -1106,7 +1032,7 @@ static int vivi_open(struct inode *inode, struct file *file) sprintf(dev->timestr,"%02d:%02d:%02d:%03d", dev->h,dev->m,dev->s,(dev->us+500)/1000); - videobuf_queue_init(&fh->vb_vidq, &vivi_video_qops, + videobuf_queue_vmalloc_init(&fh->vb_vidq, &vivi_video_qops, NULL, NULL, fh->type, V4L2_FIELD_INTERLACED, @@ -1121,9 +1047,7 @@ vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) struct vivi_fh *fh = file->private_data; if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) { - if (res_locked(fh->dev)) - return -EBUSY; - return videobuf_read_one(&fh->vb_vidq, data, count, ppos, + return videobuf_read_stream(&fh->vb_vidq, data, count, ppos, 0, file->f_flags & O_NONBLOCK); } return 0; @@ -1133,31 +1057,14 @@ static unsigned int vivi_poll(struct file *file, struct poll_table_struct *wait) { struct vivi_fh *fh = file->private_data; - struct vivi_buffer *buf; + struct videobuf_queue *q = &fh->vb_vidq; dprintk(1,"%s\n",__FUNCTION__); if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) return POLLERR; - if (res_get(fh->dev,fh)) { - dprintk(1,"poll: mmap interface\n"); - /* streaming capture */ - if (list_empty(&fh->vb_vidq.stream)) - return POLLERR; - buf = list_entry(fh->vb_vidq.stream.next,struct vivi_buffer,vb.stream); - } else { - dprintk(1,"poll: read() interface\n"); - /* read() capture */ - buf = (struct vivi_buffer*)fh->vb_vidq.read_buf; - if (NULL == buf) - return POLLERR; - } - poll_wait(file, &buf->vb.done, wait); - if (buf->vb.state == STATE_DONE || - buf->vb.state == STATE_ERROR) - return POLLIN|POLLRDNORM; - return 0; + return videobuf_poll_stream(file, q, wait); } static int vivi_release(struct inode *inode, struct file *file) @@ -1205,7 +1112,7 @@ static const struct file_operations vivi_fops = { .read = vivi_read, .poll = vivi_poll, .ioctl = video_ioctl2, /* V4L2 ioctl handler */ - .mmap = vivi_mmap, + .mmap = vivi_mmap, .llseek = no_llseek, }; 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