#include <linux/pci.h>
#include <linux/random.h>
#include <linux/version.h>
+#include <linux/mutex.h>
#include <linux/videodev2.h>
#include <linux/dma-mapping.h>
#ifdef CONFIG_VIDEO_V4L1_COMPAT
#include <media/v4l2-common.h>
#include <linux/kthread.h>
#include <linux/highmem.h>
+#include <linux/freezer.h>
/* Wake up at about 30 fps */
#define WAKE_NUMERATOR 30
#include "font.h"
-#ifndef kzalloc
-#define kzalloc(size, flags) \
-({ \
- void *__ret = kmalloc(size, flags); \
- if (__ret) \
- memset(__ret, 0, size); \
- __ret; \
-})
-#endif
-
-MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board");
-MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol");
-MODULE_LICENSE("Dual BSD/GPL");
-
#define VIVI_MAJOR_VERSION 0
#define VIVI_MINOR_VERSION 4
#define VIVI_RELEASE 0
#define VIVI_VERSION KERNEL_VERSION(VIVI_MAJOR_VERSION, VIVI_MINOR_VERSION, VIVI_RELEASE)
-static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
-module_param(video_nr, int, 0);
-
-static int debug = 0;
-module_param(debug, int, 0);
-
-static unsigned int vid_limit = 16;
-module_param(vid_limit,int,0644);
-MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
+/* Declare static vars that will be used as parameters */
+static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
+static struct video_device vivi; /* Video device */
+static int video_nr = -1; /* /dev/videoN, -1 for autodetect */
/* supported controls */
static struct v4l2_queryctrl vivi_qctrl[] = {
static int qctl_regs[ARRAY_SIZE(vivi_qctrl)];
-#define dprintk(level,fmt, arg...) \
- do { \
- if (debug >= (level)) \
- printk(KERN_DEBUG "vivi: " fmt , ## arg); \
+#define dprintk(level,fmt, arg...) \
+ do { \
+ if (vivi.debug >= (level)) \
+ printk(KERN_DEBUG "vivi: " fmt , ## arg); \
} while (0)
/* ------------------------------------------------------------------
struct vivi_fmt *fmt;
- struct sg_to_addr *to_addr;
};
struct vivi_dmaqueue {
struct vivi_dev {
struct list_head vivi_devlist;
- struct semaphore lock;
+ struct mutex lock;
int users;
/* various device info */
unsigned int resources;
- struct video_device video_dev;
+ struct video_device vfd;
struct vivi_dmaqueue vidq;
#define TSTAMP_MAX_Y TSTAMP_MIN_Y+15
#define TSTAMP_MIN_X 64
-void prep_to_addr(struct sg_to_addr to_addr[],struct videobuf_buffer *vb)
-{
- int i, pos=0;
-
- for (i=0;i<vb->dma.nr_pages;i++) {
- to_addr[i].sg=&vb->dma.sglist[i];
- to_addr[i].pos=pos;
- pos += vb->dma.sglist[i].length;
- }
-}
-
-inline int get_addr_pos(int pos, int pages, struct sg_to_addr to_addr[])
-{
- int p1=0,p2=pages-1,p3=pages/2;
-
- /* Sanity test */
- BUG_ON (pos>=to_addr[p2].pos+to_addr[p2].sg->length);
-
- while (p1+1<p2) {
- if (pos < to_addr[p3].pos) {
- p2=p3;
- } else {
- p1=p3;
- }
- p3=(p1+p2)/2;
- }
- if (pos >= to_addr[p2].pos)
- p1=p2;
-
- return (p1);
-}
-void gen_line(struct sg_to_addr to_addr[],int inipos,int pages,int wmax,
- int hmax, int line, char *timestr)
+static void gen_line(char *basep,int inipos,int wmax,
+ int hmax, int line, char *timestr)
{
- int w,i,j,pos=inipos,pgpos,oldpg,y;
- char *p,*s,*basep;
- struct page *pg;
+ int w,i,j,pos=inipos,y;
+ char *p,*s;
u8 chr,r,g,b,color;
- /* Get first addr pointed to pixel position */
- oldpg=get_addr_pos(pos,pages,to_addr);
- pg=pfn_to_page(to_addr[oldpg].sg->dma_address >> PAGE_SHIFT);
- basep = kmap_atomic(pg, KM_BOUNCE_READ)+to_addr[oldpg].sg->offset;
-
/* We will just duplicate the second pixel at the packet */
wmax/=2;
b=bars[w*7/wmax][2];
for (color=0;color<4;color++) {
- pgpos=get_addr_pos(pos,pages,to_addr);
- if (pgpos!=oldpg) {
- pg=pfn_to_page(to_addr[pgpos].sg->dma_address >> PAGE_SHIFT);
- kunmap_atomic(basep, KM_BOUNCE_READ);
- basep= kmap_atomic(pg, KM_BOUNCE_READ)+to_addr[pgpos].sg->offset;
- oldpg=pgpos;
- }
- p=basep+pos-to_addr[pgpos].pos;
+ p=basep+pos;
switch (color) {
case 0:
pos=inipos+j*2;
for (color=0;color<4;color++) {
- pgpos=get_addr_pos(pos,pages,to_addr);
- if (pgpos!=oldpg) {
- pg=pfn_to_page(to_addr[pgpos].
- sg->dma_address
- >> PAGE_SHIFT);
- kunmap_atomic(basep,
- KM_BOUNCE_READ);
- basep= kmap_atomic(pg,
- KM_BOUNCE_READ)+
- to_addr[pgpos].sg->offset;
- oldpg=pgpos;
- }
- p=basep+pos-to_addr[pgpos].pos;
+ p=basep+pos;
y=TO_Y(r,g,b);
end:
- kunmap_atomic(basep, KM_BOUNCE_READ);
+ return;
}
static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf)
{
int h,pos=0;
int hmax = buf->vb.height;
int wmax = buf->vb.width;
- struct videobuf_buffer *vb=&buf->vb;
- struct sg_to_addr *to_addr=buf->to_addr;
struct timeval ts;
+ char *tmpbuf;
- /* Test if DMA mapping is ready */
- if (!vb->dma.sglist[0].dma_address)
- return;
-
- prep_to_addr(to_addr,vb);
+ if (buf->vb.dma.varea) {
+ tmpbuf=kmalloc (wmax*2, GFP_KERNEL);
+ } else {
+ tmpbuf=buf->vb.dma.vmalloc;
+ }
- /* Check if there is enough memory */
- BUG_ON(buf->vb.dma.nr_pages << PAGE_SHIFT < (buf->vb.width*buf->vb.height)*2);
for (h=0;h<hmax;h++) {
- gen_line(to_addr,pos,vb->dma.nr_pages,wmax,hmax,h,dev->timestr);
+ 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);
+ }
pos += wmax*2;
}
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.vmalloc,pos);
+ (unsigned long)buf->vb.dma.varea,pos);
/* Advice that buffer was filled */
buf->vb.state = STATE_DONE;
/* Fill buffer */
vivi_fillbuff(dev,buf);
- }
- if (list_empty(&dma_q->active)) {
- del_timer(&dma_q->timeout);
- } else {
- mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
+
+ if (list_empty(&dma_q->active)) {
+ del_timer(&dma_q->timeout);
+ } else {
+ mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
+ }
}
if (bc != 1)
dprintk(1,"%s: %d buffers handled (should be 1)\n",__FUNCTION__,bc);
}
-void vivi_sleep(struct vivi_dmaqueue *dma_q)
+static void vivi_sleep(struct vivi_dmaqueue *dma_q)
{
int timeout;
DECLARE_WAITQUEUE(wait, current);
try_to_freeze();
}
-int vivi_thread(void *data)
+static int vivi_thread(void *data)
{
struct vivi_dmaqueue *dma_q=data;
dprintk(1,"thread started\n");
+ mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
+ set_freezable();
+
for (;;) {
vivi_sleep(dma_q);
return 0;
}
-int vivi_start_thread(struct vivi_dmaqueue *dma_q)
+static int vivi_start_thread(struct vivi_dmaqueue *dma_q)
{
dma_q->frame=0;
dma_q->ini_jiffies=jiffies;
dprintk(1,"%s\n",__FUNCTION__);
- init_waitqueue_head(&dma_q->wq);
dma_q->kthread = kthread_run(vivi_thread, dma_q, "vivi");
- if (dma_q->kthread == NULL) {
+ if (IS_ERR(dma_q->kthread)) {
printk(KERN_ERR "vivi: kernel_thread() failed\n");
- return -EINVAL;
+ return PTR_ERR(dma_q->kthread);
}
+ /* Wakes thread */
+ wake_up_interruptible(&dma_q->wq);
+
dprintk(1,"returning from %s\n",__FUNCTION__);
return 0;
}
-void vivi_stop_thread(struct vivi_dmaqueue *dma_q)
+static void vivi_stop_thread(struct vivi_dmaqueue *dma_q)
{
dprintk(1,"%s\n",__FUNCTION__);
/* shutdown control thread */
return 0;
}
-void
-free_buffer(struct videobuf_queue *vq, struct vivi_buffer *buf)
+static void free_buffer(struct videobuf_queue *vq, struct vivi_buffer *buf)
{
dprintk(1,"%s\n",__FUNCTION__);
if (in_interrupt())
BUG();
- /*FIXME: Maybe a spinlock is required here */
- kfree(buf->to_addr);
- buf->to_addr=NULL;
videobuf_waiton(&buf->vb,0,0);
videobuf_dma_unmap(vq, &buf->vb.dma);
buf->vb.state = STATE_PREPARED;
- if (NULL == (buf->to_addr = kmalloc(sizeof(*buf->to_addr) * vb->dma.nr_pages,GFP_KERNEL))) {
- rc=-ENOMEM;
- goto fail;
- }
-
return 0;
fail:
free_buffer(vq,buf);
}
-int vivi_map_sg (void *dev, struct scatterlist *sg, int nents,
- int direction)
-{
- int i;
- dprintk(1,"%s, number of pages=%d\n",__FUNCTION__,nents);
- BUG_ON(direction == DMA_NONE);
+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
+ ------------------------------------------------------------------*/
- for (i = 0; i < nents; i++ ) {
- BUG_ON(!sg[i].page);
- sg[i].dma_address = page_to_phys(sg[i].page) + sg[i].offset;
+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;
+}
- return nents;
+static int res_locked(struct vivi_dev *dev)
+{
+ return (dev->resources);
}
-int vivi_unmap_sg(void *dev,struct scatterlist *sglist,int nr_pages,
- int direction)
+static void res_free(struct vivi_dev *dev, struct vivi_fh *fh)
{
- dprintk(1,"%s\n",__FUNCTION__);
+ 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,
+ struct v4l2_capability *cap)
+{
+ strcpy(cap->driver, "vivi");
+ strcpy(cap->card, "vivi");
+ cap->version = VIVI_VERSION;
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_STREAMING |
+ V4L2_CAP_READWRITE;
return 0;
}
-int vivi_dma_sync_sg(void *dev,struct scatterlist *sglist,int nr_pages,
- int direction)
+static int vidioc_enum_fmt_cap (struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
{
-// dprintk(1,"%s\n",__FUNCTION__);
+ if (f->index > 0)
+ return -EINVAL;
-// flush_write_buffers();
+ strlcpy(f->description,format.name,sizeof(f->description));
+ f->pixelformat = format.fourcc;
return 0;
}
-static struct videobuf_queue_ops vivi_video_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
+static int vidioc_g_fmt_cap (struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct vivi_fh *fh=priv;
- /* Non-pci handling routines */
- .vb_map_sg = vivi_map_sg,
- .vb_dma_sync_sg = vivi_dma_sync_sg,
- .vb_unmap_sg = vivi_unmap_sg,
-};
+ f->fmt.pix.width = fh->width;
+ f->fmt.pix.height = fh->height;
+ f->fmt.pix.field = fh->vb_vidq.field;
+ f->fmt.pix.pixelformat = fh->fmt->fourcc;
+ f->fmt.pix.bytesperline =
+ (f->fmt.pix.width * fh->fmt->depth) >> 3;
+ f->fmt.pix.sizeimage =
+ f->fmt.pix.height * f->fmt.pix.bytesperline;
-/* ------------------------------------------------------------------
- IOCTL handling
- ------------------------------------------------------------------*/
+ return (0);
+}
-static int vivi_try_fmt(struct vivi_dev *dev, struct vivi_fh *fh,
+static int vidioc_try_fmt_cap (struct file *file, void *priv,
struct v4l2_format *f)
{
struct vivi_fmt *fmt;
unsigned int maxw, maxh;
if (format.fourcc != f->fmt.pix.pixelformat) {
- dprintk(1,"Fourcc format invalid.\n");
+ dprintk(1,"Fourcc format (0x%08x) invalid. Driver accepts "
+ "only 0x%08x\n",f->fmt.pix.pixelformat,format.fourcc);
return -EINVAL;
}
fmt=&format;
return 0;
}
-static int res_get(struct vivi_dev *dev, struct vivi_fh *fh)
+/*FIXME: This seems to be generic enough to be at videodev2 */
+static int vidioc_s_fmt_cap (struct file *file, void *priv,
+ struct v4l2_format *f)
{
- /* is it free? */
- down(&dev->lock);
- if (dev->resources) {
- /* no, someone else uses it */
- up(&dev->lock);
- return 0;
- }
- /* it's free, grab it */
- dev->resources =1;
- dprintk(1,"res: get\n");
- up(&dev->lock);
- return 1;
+ struct vivi_fh *fh=priv;
+ int ret = vidioc_try_fmt_cap(file,fh,f);
+ if (ret < 0)
+ return (ret);
+
+ fh->fmt = &format;
+ fh->width = f->fmt.pix.width;
+ fh->height = f->fmt.pix.height;
+ fh->vb_vidq.field = f->fmt.pix.field;
+ fh->type = f->type;
+
+ return (0);
}
-static inline int res_locked(struct vivi_dev *dev)
+static int vidioc_reqbufs (struct file *file, void *priv, struct v4l2_requestbuffers *p)
{
- return (dev->resources);
+ struct vivi_fh *fh=priv;
+
+ return (videobuf_reqbufs(&fh->vb_vidq, p));
}
-static void res_free(struct vivi_dev *dev, struct vivi_fh *fh)
+static int vidioc_querybuf (struct file *file, void *priv, struct v4l2_buffer *p)
{
- down(&dev->lock);
- dev->resources = 0;
- dprintk(1,"res: put\n");
- up(&dev->lock);
+ struct vivi_fh *fh=priv;
+
+ return (videobuf_querybuf(&fh->vb_vidq, p));
}
-static int vivi_do_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg)
+static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
{
- struct vivi_fh *fh = file->private_data;
- struct vivi_dev *dev = fh->dev;
- int ret=0;
-
- if (debug) {
- if (_IOC_DIR(cmd) & _IOC_WRITE)
- v4l_printk_ioctl_arg("vivi(w)",cmd, arg);
- else if (!_IOC_DIR(cmd) & _IOC_READ) {
- v4l_print_ioctl("vivi", cmd);
- }
- }
+ struct vivi_fh *fh=priv;
- switch(cmd) {
- /* --- capabilities ------------------------------------------ */
- case VIDIOC_QUERYCAP:
- {
- struct v4l2_capability *cap = (struct v4l2_capability*)arg;
-
- memset(cap, 0, sizeof(*cap));
-
- strcpy(cap->driver, "vivi");
- strcpy(cap->card, "vivi");
- cap->version = VIVI_VERSION;
- cap->capabilities =
- V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_STREAMING |
- V4L2_CAP_READWRITE;
- break;
- }
- /* --- capture ioctls ---------------------------------------- */
- case VIDIOC_ENUM_FMT:
- {
- struct v4l2_fmtdesc *f = arg;
- enum v4l2_buf_type type;
- unsigned int index;
+ return (videobuf_qbuf(&fh->vb_vidq, p));
+}
- index = f->index;
- type = f->type;
+static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
+{
+ struct vivi_fh *fh=priv;
- if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- ret=-EINVAL;
- break;
- }
+ return (videobuf_dqbuf(&fh->vb_vidq, p,
+ file->f_flags & O_NONBLOCK));
+}
- switch (type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (index > 0){
- ret=-EINVAL;
- break;
- }
- memset(f,0,sizeof(*f));
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+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;
- f->index = index;
- f->type = type;
- strlcpy(f->description,format.name,sizeof(f->description));
- f->pixelformat = format.fourcc;
- break;
- default:
- ret=-EINVAL;
- }
- break;
+ 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;
}
- case VIDIOC_G_FMT:
- {
- struct v4l2_format *f = (struct v4l2_format *)arg;
+ return (0);
+}
+#endif
- if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- ret=-EINVAL;
- break;
- }
+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;
- memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
- f->fmt.pix.width = fh->width;
- f->fmt.pix.height = fh->height;
- f->fmt.pix.field = fh->vb_vidq.field;
- f->fmt.pix.pixelformat = fh->fmt->fourcc;
- f->fmt.pix.bytesperline =
- (f->fmt.pix.width * fh->fmt->depth) >> 3;
- f->fmt.pix.sizeimage =
- f->fmt.pix.height * f->fmt.pix.bytesperline;
- break;
- }
- case VIDIOC_S_FMT:
- {
- struct v4l2_format *f = arg;
+ if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ if (i != fh->type)
+ return -EINVAL;
- if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- dprintk(1,"Only capture supported.\n");
- ret=-EINVAL;
- break;
- }
+ if (!res_get(dev,fh))
+ return -EBUSY;
+ return (videobuf_streamon(&fh->vb_vidq));
+}
- ret = vivi_try_fmt(dev,fh,f);
- if (ret < 0)
- break;
+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;
- fh->fmt = &format;
- fh->width = f->fmt.pix.width;
- fh->height = f->fmt.pix.height;
- fh->vb_vidq.field = f->fmt.pix.field;
- fh->type = f->type;
+ if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ if (i != fh->type)
+ return -EINVAL;
- break;
- }
- case VIDIOC_TRY_FMT:
- {
- struct v4l2_format *f = arg;
- if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- ret=-EINVAL;
- break;
- }
+ videobuf_streamoff(&fh->vb_vidq);
+ res_free(dev,fh);
- ret=vivi_try_fmt(dev,fh,f);
- break;
- }
- case VIDIOC_REQBUFS:
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- ret=-EINVAL;
- break;
- }
- ret=videobuf_reqbufs(&fh->vb_vidq, arg);
- break;
- case VIDIOC_QUERYBUF:
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- ret=-EINVAL;
- break;
- }
- ret=videobuf_querybuf(&fh->vb_vidq, arg);
- break;
- case VIDIOC_QBUF:
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- ret=-EINVAL;
- break;
- }
- ret=videobuf_qbuf(&fh->vb_vidq, arg);
- break;
- case VIDIOC_DQBUF:
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- ret=-EINVAL;
- break;
- }
- ret=videobuf_dqbuf(&fh->vb_vidq, arg,
- file->f_flags & O_NONBLOCK);
- break;
-#ifdef HAVE_V4L1
- /* --- streaming capture ------------------------------------- */
- case VIDIOCGMBUF:
- {
- struct video_mbuf *mbuf = arg;
- struct videobuf_queue *q=&fh->vb_vidq;
- struct v4l2_requestbuffers req;
- unsigned int i;
-
- memset(&req,0,sizeof(req));
- req.type = q->type;
- req.count = 8;
- req.memory = V4L2_MEMORY_MMAP;
- ret = videobuf_reqbufs(q,&req);
- if (ret < 0)
- break;
- memset(mbuf,0,sizeof(*mbuf));
- 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;
- }
- break;
- }
-#endif
- case VIDIOC_STREAMON:
- {
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- if (!res_get(dev,fh))
- return -EBUSY;
- ret=videobuf_streamon(&fh->vb_vidq);
- break;
- }
- case VIDIOC_STREAMOFF:
- {
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- ret=-EINVAL;
- break;
- }
- ret = videobuf_streamoff(&fh->vb_vidq);
- if (ret < 0)
- break;
- res_free(dev,fh);
- break;
- }
- /* ---------- tv norms ---------- */
- case VIDIOC_ENUMSTD:
- {
- struct v4l2_standard *e = arg;
-
- if (e->index>0) {
- ret=-EINVAL;
- break;
- }
- ret = v4l2_video_std_construct(e, V4L2_STD_NTSC_M, "NTSC-M");
+ return (0);
+}
- /* Allows vivi to use different fps from video std */
- e->frameperiod.numerator = WAKE_NUMERATOR;
- e->frameperiod.denominator = WAKE_DENOMINATOR;
+static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *i)
+{
+ return 0;
+}
- break;
- }
- case VIDIOC_G_STD:
- {
- v4l2_std_id *id = arg;
+/* only one input in this sample driver */
+static int vidioc_enum_input (struct file *file, void *priv,
+ struct v4l2_input *inp)
+{
+ if (inp->index != 0)
+ return -EINVAL;
- *id = V4L2_STD_NTSC_M;
- break;
- }
- case VIDIOC_S_STD:
- {
- break;
- }
- /* ------ input switching ---------- */
- case VIDIOC_ENUMINPUT:
- { /* only one input in this sample driver */
- struct v4l2_input *inp = arg;
+ inp->type = V4L2_INPUT_TYPE_CAMERA;
+ inp->std = V4L2_STD_NTSC_M;
+ strcpy(inp->name,"Camera");
- if (inp->index != 0) {
- ret=-EINVAL;
- break;
- }
- memset(inp, 0, sizeof(*inp));
+ return (0);
+}
- inp->index = 0;
- inp->type = V4L2_INPUT_TYPE_CAMERA;
- inp->std = V4L2_STD_NTSC_M;
- strcpy(inp->name,"Camera");
- break;
- }
- case VIDIOC_G_INPUT:
- {
- unsigned int *i = arg;
+static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
+{
+ *i = 0;
- *i = 0;
- break;
- }
- case VIDIOC_S_INPUT:
- {
- unsigned int *i = arg;
+ return (0);
+}
+static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
+{
+ if (i > 0)
+ return -EINVAL;
- if (*i > 0)
- ret=-EINVAL;
- break;
- }
+ return (0);
+}
/* --- controls ---------------------------------------------- */
- case VIDIOC_QUERYCTRL:
- {
- struct v4l2_queryctrl *qc = arg;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)
- if (qc->id && qc->id == vivi_qctrl[i].id) {
- memcpy(qc, &(vivi_qctrl[i]),
- sizeof(*qc));
- break;
- }
+static int vidioc_queryctrl (struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
+{
+ int i;
- ret=-EINVAL;
- break;
- }
- case VIDIOC_G_CTRL:
- {
- struct v4l2_control *ctrl = arg;
- int i;
+ for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)
+ if (qc->id && qc->id == vivi_qctrl[i].id) {
+ memcpy(qc, &(vivi_qctrl[i]),
+ sizeof(*qc));
+ return (0);
+ }
- for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)
- if (ctrl->id == vivi_qctrl[i].id) {
- ctrl->value=qctl_regs[i];
- break;
- }
+ return -EINVAL;
+}
- ret=-EINVAL;
- break;
- }
- case VIDIOC_S_CTRL:
- {
- struct v4l2_control *ctrl = arg;
- int i;
- for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)
- if (ctrl->id == vivi_qctrl[i].id) {
- if (ctrl->value <
- vivi_qctrl[i].minimum
- || ctrl->value >
- vivi_qctrl[i].maximum) {
- ret=-ERANGE;
- break;
- }
- qctl_regs[i]=ctrl->value;
- break;
- }
- ret=-EINVAL;
- break;
- }
- default:
- ret=v4l_compat_translate_ioctl(inode,file,cmd,arg,vivi_do_ioctl);
- }
+static int vidioc_g_ctrl (struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ int i;
- if (debug) {
- if (ret<0) {
- v4l_print_ioctl("vivi(err)", cmd);
- dprintk(1,"errcode=%d\n",ret);
- } else if (_IOC_DIR(cmd) & _IOC_READ)
- v4l_printk_ioctl_arg("vivi(r)",cmd, arg);
- }
+ for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)
+ if (ctrl->id == vivi_qctrl[i].id) {
+ ctrl->value=qctl_regs[i];
+ return (0);
+ }
- return ret;
+ return -EINVAL;
}
-
-static int vivi_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int vidioc_s_ctrl (struct file *file, void *priv,
+ struct v4l2_control *ctrl)
{
- return video_usercopy(inode, file, cmd, arg, vivi_do_ioctl);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)
+ if (ctrl->id == vivi_qctrl[i].id) {
+ if (ctrl->value <
+ vivi_qctrl[i].minimum
+ || ctrl->value >
+ vivi_qctrl[i].maximum) {
+ return (-ERANGE);
+ }
+ qctl_regs[i]=ctrl->value;
+ return (0);
+ }
+ return -EINVAL;
}
/* ------------------------------------------------------------------
list_for_each(list,&vivi_devlist) {
h = list_entry(list, struct vivi_dev, vivi_devlist);
- if (h->video_dev.minor == minor) {
+ if (h->vfd.minor == minor) {
dev = h;
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
}
return -ENODEV;
+
/* If more than one user, mutex should be added */
dev->users++;
file->private_data = fh;
fh->dev = dev;
+
fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
fh->fmt = &format;
fh->width = 640;
static ssize_t
vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
{
- struct vivi_fh *fh = file->private_data;
+ 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;
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 vivi_fh *fh = file->private_data;
+ struct vivi_buffer *buf;
dprintk(1,"%s\n",__FUNCTION__);
static int vivi_release(struct inode *inode, struct file *file)
{
- struct vivi_fh *fh = file->private_data;
- struct vivi_dev *dev = fh->dev;
+ struct vivi_fh *fh = file->private_data;
+ struct vivi_dev *dev = fh->dev;
struct vivi_dmaqueue *vidq = &dev->vidq;
int minor = iminor(inode);
static int
vivi_mmap(struct file *file, struct vm_area_struct * vma)
{
- struct vivi_fh *fh = file->private_data;
+ struct vivi_fh *fh = file->private_data;
int ret;
dprintk (1,"mmap called, vma=0x%08lx\n",(unsigned long)vma);
return ret;
}
-static struct file_operations vivi_fops = {
+static const struct file_operations vivi_fops = {
.owner = THIS_MODULE,
.open = vivi_open,
.release = vivi_release,
.read = vivi_read,
.poll = vivi_poll,
- .ioctl = vivi_ioctl,
+ .ioctl = video_ioctl2, /* V4L2 ioctl handler */
.mmap = vivi_mmap,
.llseek = no_llseek,
};
static struct video_device vivi = {
- .name = "VTM Virtual Video Capture Board",
+ .name = "vivi",
.type = VID_TYPE_CAPTURE,
.hardware = 0,
.fops = &vivi_fops,
.minor = -1,
// .release = video_device_release,
+
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap,
+ .vidioc_g_fmt_cap = vidioc_g_fmt_cap,
+ .vidioc_try_fmt_cap = vidioc_try_fmt_cap,
+ .vidioc_s_fmt_cap = vidioc_s_fmt_cap,
+ .vidioc_reqbufs = vidioc_reqbufs,
+ .vidioc_querybuf = vidioc_querybuf,
+ .vidioc_qbuf = vidioc_qbuf,
+ .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_s_std = vidioc_s_std,
+ .vidioc_enum_input = vidioc_enum_input,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+ .vidioc_queryctrl = vidioc_queryctrl,
+ .vidioc_g_ctrl = vidioc_g_ctrl,
+ .vidioc_s_ctrl = vidioc_s_ctrl,
+ .vidioc_streamon = vidioc_streamon,
+ .vidioc_streamoff = vidioc_streamoff,
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+ .vidiocgmbuf = vidiocgmbuf,
+#endif
+ .tvnorms = V4L2_STD_NTSC_M,
+ .current_norm = V4L2_STD_NTSC_M,
};
-/* ------------------------------------------------------------------
+/* -----------------------------------------------------------------
Initialization and module stuff
------------------------------------------------------------------*/
/* init video dma queues */
INIT_LIST_HEAD(&dev->vidq.active);
INIT_LIST_HEAD(&dev->vidq.queued);
+ init_waitqueue_head(&dev->vidq.wq);
/* initialize locks */
- init_MUTEX(&dev->lock);
+ mutex_init(&dev->lock);
dev->vidq.timeout.function = vivi_vid_timeout;
dev->vidq.timeout.data = (unsigned long)dev;
struct vivi_dev *h;
struct list_head *list;
- list_for_each(list,&vivi_devlist) {
+ while (!list_empty(&vivi_devlist)) {
+ list = vivi_devlist.next;
+ list_del(list);
h = list_entry(list, struct vivi_dev, vivi_devlist);
kfree (h);
}
module_init(vivi_init);
module_exit(vivi_exit);
+
+MODULE_DESCRIPTION("Video Technology Magazine Virtual Video Capture Board");
+MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol");
+MODULE_LICENSE("Dual BSD/GPL");
+
+module_param(video_nr, int, 0);
+
+module_param_named(debug,vivi.debug, int, 0644);
+MODULE_PARM_DESC(debug,"activates debug info");
+
+module_param(vid_limit,int,0644);
+MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff