#define WAKE_DENOMINATOR 1001
#define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
-/* These timers are for 1 fps - used only for testing */
-//#define WAKE_DENOMINATOR 30 /* hack for testing purposes */
-//#define BUFFER_TIMEOUT msecs_to_jiffies(5000) /* 5 seconds */
-
#include "font.h"
#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)
+#define VIVI_VERSION \
+ KERNEL_VERSION(VIVI_MAJOR_VERSION, VIVI_MINOR_VERSION, VIVI_RELEASE)
/* 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 */
+static int n_devs = 1; /* Number of virtual devices */
/* supported controls */
static struct v4l2_queryctrl vivi_qctrl[] = {
.default_value = 65535,
.flags = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
- },{
+ }, {
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
static int qctl_regs[ARRAY_SIZE(vivi_qctrl)];
-#define dprintk(level,fmt, arg...) \
+#define dprintk(dev, level, fmt, arg...) \
do { \
- if (vivi.debug >= (level)) \
+ if (dev->vfd->debug >= (level)) \
printk(KERN_DEBUG "vivi: " fmt , ## arg); \
} while (0)
struct list_head vivi_devlist;
struct mutex lock;
+ spinlock_t slock;
int users;
/* various device info */
- struct video_device vfd;
+ struct video_device *vfd;
struct vivi_dmaqueue vidq;
/* Several counters */
- int h,m,s,us,jiffies;
+ int h, m, s, ms;
+ unsigned long jiffies;
char timestr[13];
+
+ int mv_count; /* Controls bars movement */
};
struct vivi_fh {
/* video capture */
struct vivi_fmt *fmt;
- unsigned int width,height;
+ unsigned int width, height;
struct videobuf_queue vb_vidq;
enum v4l2_buf_type type;
GREEN,
MAGENTA,
RED,
- BLUE
+ BLUE,
+ BLACK,
};
static u8 bars[8][3] = {
/* R G B */
- {204,204,204}, /* white */
- {208,208, 0}, /* ambar */
- { 0,206,206}, /* cyan */
- { 0,239, 0}, /* green */
- {239, 0,239}, /* magenta */
- {205, 0, 0}, /* red */
- { 0, 0,255}, /* blue */
- { 0, 0, 0}
+ {204, 204, 204}, /* white */
+ {208, 208, 0}, /* ambar */
+ { 0, 206, 206}, /* cyan */
+ { 0, 239, 0}, /* green */
+ {239, 0, 239}, /* magenta */
+ {205, 0, 0}, /* red */
+ { 0, 0, 255}, /* blue */
+ { 0, 0, 0}, /* black */
};
-#define TO_Y(r,g,b) (((16829*r +33039*g +6416*b + 32768)>>16)+16)
+#define TO_Y(r, g, b) \
+ (((16829 * r + 33039 * g + 6416 * b + 32768) >> 16) + 16)
/* RGB to V(Cr) Color transform */
-#define TO_V(r,g,b) (((28784*r -24103*g -4681*b + 32768)>>16)+128)
+#define TO_V(r, g, b) \
+ (((28784 * r - 24103 * g - 4681 * b + 32768) >> 16) + 128)
/* RGB to U(Cb) Color transform */
-#define TO_U(r,g,b) (((-9714*r -19070*g +28784*b + 32768)>>16)+128)
+#define TO_U(r, g, b) \
+ (((-9714 * r - 19070 * g + 28784 * b + 32768) >> 16) + 128)
#define TSTAMP_MIN_Y 24
#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, int count, char *timestr)
+static void gen_line(char *basep, int inipos, int wmax,
+ int hmax, int line, int count, char *timestr)
{
- int w,i,j,pos=inipos,y;
- char *p,*s;
- u8 chr,r,g,b,color;
+ int w, i, j, y;
+ int pos = inipos;
+ char *p, *s;
+ u8 chr, r, g, b, color;
/* We will just duplicate the second pixel at the packet */
- wmax/=2;
+ wmax /= 2;
/* Generate a standard color bar pattern */
- for (w=0;w<wmax;w++) {
- int colorpos=((w+count)*8/(wmax+1)) % 8;
- r=bars[colorpos][0];
- g=bars[colorpos][1];
- b=bars[colorpos][2];
+ for (w = 0; w < wmax; w++) {
+ 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;
+ for (color = 0; color < 4; color++) {
+ p = basep + pos;
switch (color) {
- case 0:
- case 2:
- *p=TO_Y(r,g,b); /* Luminance */
- break;
- case 1:
- *p=TO_U(r,g,b); /* Cb */
- break;
- case 3:
- *p=TO_V(r,g,b); /* Cr */
- break;
+ case 0:
+ case 2:
+ *p = TO_Y(r, g, b); /* Luma */
+ break;
+ case 1:
+ *p = TO_U(r, g, b); /* Cb */
+ break;
+ case 3:
+ *p = TO_V(r, g, b); /* Cr */
+ break;
}
pos++;
}
}
/* Checks if it is possible to show timestamp */
- if (TSTAMP_MAX_Y>=hmax)
+ if (TSTAMP_MAX_Y >= hmax)
goto end;
- if (TSTAMP_MIN_X+strlen(timestr)>=wmax)
+ if (TSTAMP_MIN_X + strlen(timestr) >= wmax)
goto end;
/* Print stream time */
- if (line>=TSTAMP_MIN_Y && line<=TSTAMP_MAX_Y) {
- j=TSTAMP_MIN_X;
- for (s=timestr;*s;s++) {
- chr=rom8x16_bits[(*s-0x30)*16+line-TSTAMP_MIN_Y];
- for (i=0;i<7;i++) {
- if (chr&1<<(7-i)) { /* Font color*/
- r=bars[BLUE][0];
- g=bars[BLUE][1];
- b=bars[BLUE][2];
- r=g=b=0;
- g=198;
- } else { /* Background color */
- r=bars[WHITE][0];
- g=bars[WHITE][1];
- b=bars[WHITE][2];
- r=g=b=0;
+ if (line >= TSTAMP_MIN_Y && line <= TSTAMP_MAX_Y) {
+ j = TSTAMP_MIN_X;
+ for (s = timestr; *s; s++) {
+ chr = rom8x16_bits[(*s-0x30)*16+line-TSTAMP_MIN_Y];
+ for (i = 0; i < 7; i++) {
+ if (chr & 1 << (7 - i)) {
+ /* Font color*/
+ r = 0;
+ g = 198;
+ b = 0;
+ } else {
+ /* Background color */
+ r = bars[BLACK][0];
+ g = bars[BLACK][1];
+ b = bars[BLACK][2];
}
- pos=inipos+j*2;
- for (color=0;color<4;color++) {
- p=basep+pos;
+ pos = inipos + j * 2;
+ for (color = 0; color < 4; color++) {
+ p = basep + pos;
- y=TO_Y(r,g,b);
+ y = TO_Y(r, g, b);
switch (color) {
- case 0:
- case 2:
- *p=TO_Y(r,g,b); /* Luminance */
- break;
- case 1:
- *p=TO_U(r,g,b); /* Cb */
- break;
- case 3:
- *p=TO_V(r,g,b); /* Cr */
- break;
+ case 0:
+ case 2:
+ *p = TO_Y(r, g, b); /* Luma */
+ break;
+ case 1:
+ *p = TO_U(r, g, b); /* Cb */
+ break;
+ case 3:
+ *p = TO_V(r, g, b); /* Cr */
+ break;
}
pos++;
}
}
}
-
end:
return;
}
-static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf)
+static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf)
{
- int h,pos=0;
+ int h , pos = 0;
int hmax = buf->vb.height;
int wmax = buf->vb.width;
struct timeval ts;
- char *tmpbuf = kmalloc(wmax*2,GFP_KERNEL);
- void *vbuf=videobuf_to_vmalloc (&buf->vb);
- /* FIXME: move to dev struct */
- static int mv_count=0;
+ char *tmpbuf = kmalloc(wmax * 2, GFP_KERNEL);
+ void *vbuf = videobuf_to_vmalloc(&buf->vb);
if (!tmpbuf)
return;
- for (h=0;h<hmax;h++) {
- gen_line(tmpbuf,0,wmax,hmax,h,mv_count,
+ for (h = 0; h < hmax; h++) {
+ gen_line(tmpbuf, 0, wmax, hmax, h, dev->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");
+ if (copy_to_user(vbuf + pos, tmpbuf, wmax * 2) != 0)
+ dprintk(dev, 2, "vivifill copy_to_user failed.\n");
pos += wmax*2;
}
- mv_count++;
+ dev->mv_count++;
kfree(tmpbuf);
/* Updates stream time */
- dev->us+=jiffies_to_usecs(jiffies-dev->jiffies);
- dev->jiffies=jiffies;
- if (dev->us>=1000000) {
- dev->us-=1000000;
+ dev->ms += jiffies_to_msecs(jiffies-dev->jiffies);
+ dev->jiffies = jiffies;
+ if (dev->ms >= 1000) {
+ dev->ms -= 1000;
dev->s++;
- if (dev->s>=60) {
- dev->s-=60;
+ if (dev->s >= 60) {
+ dev->s -= 60;
dev->m++;
- if (dev->m>60) {
- dev->m-=60;
+ if (dev->m > 60) {
+ dev->m -= 60;
dev->h++;
- if (dev->h>24)
- dev->h-=24;
+ if (dev->h > 24)
+ dev->h -= 24;
}
}
}
- sprintf(dev->timestr,"%02d:%02d:%02d:%03d",
- dev->h,dev->m,dev->s,(dev->us+500)/1000);
+ sprintf(dev->timestr, "%02d:%02d:%02d:%03d",
+ dev->h, dev->m, dev->s, dev->ms);
- dprintk(2,"vivifill at %s: Buffer 0x%08lx size= %d\n",dev->timestr,
- (unsigned long)tmpbuf,pos);
+ dprintk(dev, 2, "vivifill at %s: Buffer 0x%08lx size= %d\n",
+ dev->timestr, (unsigned long)tmpbuf, pos);
/* Advice that buffer was filled */
- buf->vb.state = STATE_DONE;
+ buf->vb.state = VIDEOBUF_DONE;
buf->vb.field_count++;
do_gettimeofday(&ts);
buf->vb.ts = ts;
static void vivi_thread_tick(struct vivi_dmaqueue *dma_q)
{
struct vivi_buffer *buf;
- struct vivi_dev *dev= container_of(dma_q,struct vivi_dev,vidq);
+ struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq);
int bc;
+ spin_lock(&dev->slock);
/* Announces videobuf that all went ok */
for (bc = 0;; bc++) {
if (list_empty(&dma_q->active)) {
- dprintk(1,"No active queue to serve\n");
+ dprintk(dev, 1, "No active queue to serve\n");
break;
}
/* Nobody is waiting something to be done, just return */
if (!waitqueue_active(&buf->vb.done)) {
mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
+ spin_unlock(&dev->slock);
return;
}
do_gettimeofday(&buf->vb.ts);
- dprintk(2,"[%p/%d] wakeup\n",buf,buf->vb.i);
+ dprintk(dev, 2, "[%p/%d] wakeup\n", buf, buf->vb. i);
/* Fill buffer */
- vivi_fillbuff(dev,buf);
+ vivi_fillbuff(dev, buf);
if (list_empty(&dma_q->active)) {
del_timer(&dma_q->timeout);
} else {
- mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
+ mod_timer(&dma_q->timeout, jiffies + BUFFER_TIMEOUT);
}
}
if (bc != 1)
- dprintk(1,"%s: %d buffers handled (should be 1)\n",__FUNCTION__,bc);
+ dprintk(dev, 1, "%s: %d buffers handled (should be 1)\n",
+ __FUNCTION__, bc);
+ spin_unlock(&dev->slock);
}
+#define frames_to_ms(frames) \
+ ((frames * WAKE_NUMERATOR * 1000) / WAKE_DENOMINATOR)
+
static void vivi_sleep(struct vivi_dmaqueue *dma_q)
{
- int timeout;
+ struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq);
+ int timeout, running_time;
DECLARE_WAITQUEUE(wait, current);
- dprintk(1,"%s dma_q=0x%08lx\n",__FUNCTION__,(unsigned long)dma_q);
+ dprintk(dev, 1, "%s dma_q=0x%08lx\n", __FUNCTION__,
+ (unsigned long)dma_q);
add_wait_queue(&dma_q->wq, &wait);
- if (!kthread_should_stop()) {
- dma_q->frame++;
+ if (kthread_should_stop())
+ goto stop_task;
- /* Calculate time to wake up */
- timeout=dma_q->ini_jiffies+msecs_to_jiffies((dma_q->frame*WAKE_NUMERATOR*1000)/WAKE_DENOMINATOR)-jiffies;
+ running_time = jiffies - dma_q->ini_jiffies;
+ dma_q->frame++;
- if (timeout <= 0) {
- int old=dma_q->frame;
- dma_q->frame=(jiffies_to_msecs(jiffies-dma_q->ini_jiffies)*WAKE_DENOMINATOR)/(WAKE_NUMERATOR*1000)+1;
+ /* Calculate time to wake up */
+ timeout = msecs_to_jiffies(frames_to_ms(dma_q->frame)) - running_time;
- timeout=dma_q->ini_jiffies+msecs_to_jiffies((dma_q->frame*WAKE_NUMERATOR*1000)/WAKE_DENOMINATOR)-jiffies;
+ if (timeout > msecs_to_jiffies(frames_to_ms(2)) || timeout <= 0) {
+ int old = dma_q->frame;
+ int nframes;
- dprintk(1,"underrun, losed %d frames. "
- "Now, frame is %d. Waking on %d jiffies\n",
- dma_q->frame-old,dma_q->frame,timeout);
- } else
- dprintk(1,"will sleep for %i jiffies\n",timeout);
+ dma_q->frame = (jiffies_to_msecs(running_time) /
+ frames_to_ms(1)) + 1;
- vivi_thread_tick(dma_q);
+ timeout = msecs_to_jiffies(frames_to_ms(dma_q->frame))
+ - running_time;
- schedule_timeout_interruptible (timeout);
- }
+ if (unlikely (timeout <= 0))
+ timeout = 1;
+
+ nframes = (dma_q->frame > old)?
+ dma_q->frame - old : old - dma_q->frame;
+
+ dprintk(dev, 1, "%ld: %s %d frames. "
+ "Current frame is %d. Will sleep for %d jiffies\n",
+ jiffies,
+ (dma_q->frame > old)? "Underrun, losed" : "Overrun of",
+ nframes, dma_q->frame, timeout);
+ } else
+ dprintk(dev, 1, "will sleep for %d jiffies\n", timeout);
+ vivi_thread_tick(dma_q);
+
+ schedule_timeout_interruptible(timeout);
+
+stop_task:
remove_wait_queue(&dma_q->wq, &wait);
try_to_freeze();
}
static int vivi_thread(void *data)
{
- struct vivi_dmaqueue *dma_q=data;
+ struct vivi_dmaqueue *dma_q = data;
+ struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq);
- dprintk(1,"thread started\n");
+ dprintk(dev, 1, "thread started\n");
mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
set_freezable();
if (kthread_should_stop())
break;
}
- dprintk(1, "thread: exit\n");
+ dprintk(dev, 1, "thread: exit\n");
return 0;
}
static int vivi_start_thread(struct vivi_dmaqueue *dma_q)
{
- dma_q->frame=0;
- dma_q->ini_jiffies=jiffies;
+ struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq);
- dprintk(1,"%s\n",__FUNCTION__);
+ dma_q->frame = 0;
+ dma_q->ini_jiffies = jiffies;
+
+ dprintk(dev, 1, "%s\n", __FUNCTION__);
dma_q->kthread = kthread_run(vivi_thread, dma_q, "vivi");
/* Wakes thread */
wake_up_interruptible(&dma_q->wq);
- dprintk(1,"returning from %s\n",__FUNCTION__);
+ dprintk(dev, 1, "returning from %s\n", __FUNCTION__);
return 0;
}
static void vivi_stop_thread(struct vivi_dmaqueue *dma_q)
{
- dprintk(1,"%s\n",__FUNCTION__);
+ struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq);
+
+ dprintk(dev, 1, "%s\n", __FUNCTION__);
/* shutdown control thread */
if (dma_q->kthread) {
kthread_stop(dma_q->kthread);
- dma_q->kthread=NULL;
+ dma_q->kthread = NULL;
}
}
static int restart_video_queue(struct vivi_dmaqueue *dma_q)
{
+ struct vivi_dev *dev = container_of(dma_q, struct vivi_dev, vidq);
struct vivi_buffer *buf, *prev;
- dprintk(1,"%s dma_q=0x%08lx\n",__FUNCTION__,(unsigned long)dma_q);
+ dprintk(dev, 1, "%s dma_q=0x%08lx\n", __FUNCTION__,
+ (unsigned long)dma_q);
if (!list_empty(&dma_q->active)) {
- buf = list_entry(dma_q->active.next, struct vivi_buffer, vb.queue);
- dprintk(2,"restart_queue [%p/%d]: restart dma\n",
+ buf = list_entry(dma_q->active.next,
+ struct vivi_buffer, vb.queue);
+ dprintk(dev, 2, "restart_queue [%p/%d]: restart dma\n",
buf, buf->vb.i);
- dprintk(1,"Restarting video dma\n");
+ dprintk(dev, 1, "Restarting video dma\n");
vivi_stop_thread(dma_q);
-// vivi_start_thread(dma_q);
/* cancel all outstanding capture / vbi requests */
list_for_each_entry_safe(buf, prev, &dma_q->active, vb.queue) {
list_del(&buf->vb.queue);
- buf->vb.state = STATE_ERROR;
+ buf->vb.state = VIDEOBUF_ERROR;
wake_up(&buf->vb.done);
}
mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
for (;;) {
if (list_empty(&dma_q->queued))
return 0;
- buf = list_entry(dma_q->queued.next, struct vivi_buffer, vb.queue);
+ buf = list_entry(dma_q->queued.next,
+ struct vivi_buffer, vb.queue);
if (NULL == prev) {
list_del(&buf->vb.queue);
- list_add_tail(&buf->vb.queue,&dma_q->active);
+ list_add_tail(&buf->vb.queue, &dma_q->active);
- dprintk(1,"Restarting video dma\n");
+ dprintk(dev, 1, "Restarting video dma\n");
vivi_stop_thread(dma_q);
vivi_start_thread(dma_q);
- buf->vb.state = STATE_ACTIVE;
+ buf->vb.state = VIDEOBUF_ACTIVE;
mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
- dprintk(2,"[%p/%d] restart_queue - first active\n",
- buf,buf->vb.i);
+ dprintk(dev, 2,
+ "[%p/%d] restart_queue - first active\n",
+ buf, buf->vb.i);
} else if (prev->vb.width == buf->vb.width &&
prev->vb.height == buf->vb.height &&
prev->fmt == buf->fmt) {
list_del(&buf->vb.queue);
- list_add_tail(&buf->vb.queue,&dma_q->active);
- buf->vb.state = STATE_ACTIVE;
- dprintk(2,"[%p/%d] restart_queue - move to active\n",
- buf,buf->vb.i);
+ list_add_tail(&buf->vb.queue, &dma_q->active);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ dprintk(dev, 2,
+ "[%p/%d] restart_queue - move to active\n",
+ buf, buf->vb.i);
} else {
return 0;
}
static void vivi_vid_timeout(unsigned long data)
{
- struct vivi_dev *dev = (struct vivi_dev*)data;
+ struct vivi_dev *dev = (struct vivi_dev *)data;
struct vivi_dmaqueue *vidq = &dev->vidq;
struct vivi_buffer *buf;
+ spin_lock(&dev->slock);
+
while (!list_empty(&vidq->active)) {
- buf = list_entry(vidq->active.next, struct vivi_buffer, vb.queue);
+ buf = list_entry(vidq->active.next,
+ struct vivi_buffer, vb.queue);
list_del(&buf->vb.queue);
- buf->vb.state = STATE_ERROR;
+ buf->vb.state = VIDEOBUF_ERROR;
wake_up(&buf->vb.done);
- printk("vivi/0: [%p/%d] timeout\n", buf, buf->vb.i);
+ printk(KERN_INFO "vivi/0: [%p/%d] timeout\n", buf, buf->vb.i);
}
-
restart_video_queue(vidq);
+
+ spin_unlock(&dev->slock);
}
/* ------------------------------------------------------------------
static int
buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
{
- struct vivi_fh *fh = vq->priv_data;
+ struct vivi_fh *fh = vq->priv_data;
+ struct vivi_dev *dev = fh->dev;
*size = fh->width*fh->height*2;
while (*size * *count > vid_limit * 1024 * 1024)
(*count)--;
- dprintk(1,"%s, count=%d, size=%d\n",__FUNCTION__,*count, *size);
+ dprintk(dev, 1, "%s, count=%d, size=%d\n", __FUNCTION__,
+ *count, *size);
return 0;
}
static void free_buffer(struct videobuf_queue *vq, struct vivi_buffer *buf)
{
- dprintk(1,"%s\n",__FUNCTION__);
+ struct vivi_fh *fh = vq->priv_data;
+ struct vivi_dev *dev = fh->dev;
+
+ dprintk(dev, 1, "%s\n", __FUNCTION__);
if (in_interrupt())
BUG();
- videobuf_waiton(&buf->vb,0,0);
+ videobuf_waiton(&buf->vb, 0, 0);
videobuf_vmalloc_free(&buf->vb);
- buf->vb.state = STATE_NEEDS_INIT;
+ buf->vb.state = VIDEOBUF_NEEDS_INIT;
}
#define norm_maxw() 1024
enum v4l2_field field)
{
struct vivi_fh *fh = vq->priv_data;
- struct vivi_buffer *buf = container_of(vb,struct vivi_buffer,vb);
+ struct vivi_dev *dev = fh->dev;
+ 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(dev, 1, "%s, field=%d\n", __FUNCTION__, field);
BUG_ON(NULL == fh->fmt);
if (fh->width < 48 || fh->width > norm_maxw() ||
init_buffer = 1;
}
- if (STATE_NEEDS_INIT == buf->vb.state) {
- if (0 != (rc = videobuf_iolock(vq,&buf->vb,NULL)))
+ if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+ rc = videobuf_iolock(vq, &buf->vb, NULL);
+ if (rc < 0)
goto fail;
}
- buf->vb.state = STATE_PREPARED;
+ buf->vb.state = VIDEOBUF_PREPARED;
return 0;
fail:
- free_buffer(vq,buf);
+ free_buffer(vq, buf);
return rc;
}
static void
buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
{
- struct vivi_buffer *buf = container_of(vb,struct vivi_buffer,vb);
- struct vivi_fh *fh = vq->priv_data;
- struct vivi_dev *dev = fh->dev;
- struct vivi_dmaqueue *vidq = &dev->vidq;
+ struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb);
+ struct vivi_fh *fh = vq->priv_data;
+ struct vivi_dev *dev = fh->dev;
+ struct vivi_dmaqueue *vidq = &dev->vidq;
struct vivi_buffer *prev;
if (!list_empty(&vidq->queued)) {
- dprintk(1,"adding vb queue=0x%08lx\n",(unsigned long)&buf->vb.queue);
- list_add_tail(&buf->vb.queue,&vidq->queued);
- buf->vb.state = STATE_QUEUED;
- dprintk(2,"[%p/%d] buffer_queue - append to queued\n",
+ dprintk(dev, 1, "adding vb queue=0x%08lx\n",
+ (unsigned long)&buf->vb.queue);
+ list_add_tail(&buf->vb.queue, &vidq->queued);
+ buf->vb.state = VIDEOBUF_QUEUED;
+ dprintk(dev, 2, "[%p/%d] buffer_queue - append to queued\n",
buf, buf->vb.i);
} else if (list_empty(&vidq->active)) {
- list_add_tail(&buf->vb.queue,&vidq->active);
+ list_add_tail(&buf->vb.queue, &vidq->active);
- buf->vb.state = STATE_ACTIVE;
+ buf->vb.state = VIDEOBUF_ACTIVE;
mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
- dprintk(2,"[%p/%d] buffer_queue - first active\n",
+ dprintk(dev, 2, "[%p/%d] buffer_queue - first active\n",
buf, buf->vb.i);
vivi_start_thread(vidq);
} else {
- prev = list_entry(vidq->active.prev, struct vivi_buffer, vb.queue);
+ prev = list_entry(vidq->active.prev,
+ struct vivi_buffer, vb.queue);
if (prev->vb.width == buf->vb.width &&
prev->vb.height == buf->vb.height &&
prev->fmt == buf->fmt) {
- list_add_tail(&buf->vb.queue,&vidq->active);
- buf->vb.state = STATE_ACTIVE;
- dprintk(2,"[%p/%d] buffer_queue - append to active\n",
+ list_add_tail(&buf->vb.queue, &vidq->active);
+ buf->vb.state = VIDEOBUF_ACTIVE;
+ dprintk(dev, 2,
+ "[%p/%d] buffer_queue - append to active\n",
buf, buf->vb.i);
} else {
- list_add_tail(&buf->vb.queue,&vidq->queued);
- buf->vb.state = STATE_QUEUED;
- dprintk(2,"[%p/%d] buffer_queue - first queued\n",
+ list_add_tail(&buf->vb.queue, &vidq->queued);
+ buf->vb.state = VIDEOBUF_QUEUED;
+ dprintk(dev, 2,
+ "[%p/%d] buffer_queue - first queued\n",
buf, buf->vb.i);
}
}
}
-static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+static void buffer_release(struct videobuf_queue *vq,
+ struct videobuf_buffer *vb)
{
- struct vivi_buffer *buf = container_of(vb,struct vivi_buffer,vb);
+ struct vivi_buffer *buf = container_of(vb, struct vivi_buffer, vb);
struct vivi_fh *fh = vq->priv_data;
- struct vivi_dev *dev = (struct vivi_dev*)fh->dev;
+ struct vivi_dev *dev = (struct vivi_dev *)fh->dev;
struct vivi_dmaqueue *vidq = &dev->vidq;
- dprintk(1,"%s\n",__FUNCTION__);
+ dprintk(dev, 1, "%s\n", __FUNCTION__);
vivi_stop_thread(vidq);
- free_buffer(vq,buf);
+ free_buffer(vq, buf);
}
static struct videobuf_queue_ops vivi_video_qops = {
/* ------------------------------------------------------------------
IOCTL vidioc handling
------------------------------------------------------------------*/
-static int vidioc_querycap (struct file *file, void *priv,
+static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
strcpy(cap->driver, "vivi");
return 0;
}
-static int vidioc_enum_fmt_cap (struct file *file, void *priv,
+static int vidioc_enum_fmt_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
if (f->index > 0)
return -EINVAL;
- strlcpy(f->description,format.name,sizeof(f->description));
+ strlcpy(f->description, format.name, sizeof(f->description));
f->pixelformat = format.fourcc;
return 0;
}
-static int vidioc_g_fmt_cap (struct file *file, void *priv,
+static int vidioc_g_fmt_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct vivi_fh *fh=priv;
+ struct vivi_fh *fh = priv;
f->fmt.pix.width = fh->width;
f->fmt.pix.height = fh->height;
return (0);
}
-static int vidioc_try_fmt_cap (struct file *file, void *priv,
+static int vidioc_try_fmt_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
+ struct vivi_fh *fh = priv;
+ struct vivi_dev *dev = fh->dev;
struct vivi_fmt *fmt;
enum v4l2_field field;
unsigned int maxw, maxh;
if (format.fourcc != f->fmt.pix.pixelformat) {
- dprintk(1,"Fourcc format (0x%08x) invalid. Driver accepts "
- "only 0x%08x\n",f->fmt.pix.pixelformat,format.fourcc);
+ dprintk(dev, 1, "Fourcc format (0x%08x) invalid. "
+ "Driver accepts only 0x%08x\n",
+ f->fmt.pix.pixelformat, format.fourcc);
return -EINVAL;
}
- fmt=&format;
+ fmt = &format;
field = f->fmt.pix.field;
if (field == V4L2_FIELD_ANY) {
- field=V4L2_FIELD_INTERLACED;
+ field = V4L2_FIELD_INTERLACED;
} else if (V4L2_FIELD_INTERLACED != field) {
- dprintk(1,"Field type invalid.\n");
+ dprintk(dev, 1, "Field type invalid.\n");
return -EINVAL;
}
}
/*FIXME: This seems to be generic enough to be at videodev2 */
-static int vidioc_s_fmt_cap (struct file *file, void *priv,
+static int vidioc_s_fmt_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct vivi_fh *fh=priv;
- int ret = vidioc_try_fmt_cap(file,fh,f);
+ struct vivi_fh *fh = priv;
+ int ret = vidioc_try_fmt_cap(file, fh, f);
if (ret < 0)
return (ret);
return (0);
}
-static int vidioc_reqbufs (struct file *file, void *priv, struct v4l2_requestbuffers *p)
+static int vidioc_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *p)
{
- struct vivi_fh *fh=priv;
+ struct vivi_fh *fh = priv;
return (videobuf_reqbufs(&fh->vb_vidq, p));
}
-static int vidioc_querybuf (struct file *file, void *priv, struct v4l2_buffer *p)
+static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
{
- struct vivi_fh *fh=priv;
+ struct vivi_fh *fh = priv;
return (videobuf_querybuf(&fh->vb_vidq, p));
}
-static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p)
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
{
- struct vivi_fh *fh=priv;
+ struct vivi_fh *fh = priv;
return (videobuf_qbuf(&fh->vb_vidq, p));
}
-static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
{
- struct vivi_fh *fh=priv;
+ struct vivi_fh *fh = priv;
return (videobuf_dqbuf(&fh->vb_vidq, p,
file->f_flags & O_NONBLOCK));
}
#ifdef CONFIG_VIDEO_V4L1_COMPAT
-static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
+static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
{
- struct vivi_fh *fh=priv;
+ struct vivi_fh *fh = priv;
- return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
+ 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_fh *fh = priv;
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
{
- struct vivi_fh *fh=priv;
+ struct vivi_fh *fh = priv;
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
return videobuf_streamoff(&fh->vb_vidq);
}
-static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *i)
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *i)
{
return 0;
}
/* only one input in this sample driver */
-static int vidioc_enum_input (struct file *file, void *priv,
+static int vidioc_enum_input(struct file *file, void *priv,
struct v4l2_input *inp)
{
if (inp->index != 0)
return -EINVAL;
inp->type = V4L2_INPUT_TYPE_CAMERA;
- inp->std = V4L2_STD_NTSC_M;
- strcpy(inp->name,"Camera");
+ inp->std = V4L2_STD_525_60;
+ strcpy(inp->name, "Camera");
return (0);
}
-static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
+static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
{
*i = 0;
return (0);
}
-static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
+static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
{
if (i > 0)
return -EINVAL;
}
/* --- controls ---------------------------------------------- */
-static int vidioc_queryctrl (struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
+static int vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
{
int i;
return -EINVAL;
}
-static int vidioc_g_ctrl (struct file *file, void *priv,
- struct v4l2_control *ctrl)
+static int vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
{
int i;
for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)
if (ctrl->id == vivi_qctrl[i].id) {
- ctrl->value=qctl_regs[i];
+ ctrl->value = qctl_regs[i];
return (0);
}
return -EINVAL;
}
-static int vidioc_s_ctrl (struct file *file, void *priv,
+static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
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) {
+ if (ctrl->value < vivi_qctrl[i].minimum
+ || ctrl->value > vivi_qctrl[i].maximum) {
return (-ERANGE);
}
- qctl_regs[i]=ctrl->value;
+ qctl_regs[i] = ctrl->value;
return (0);
}
return -EINVAL;
struct vivi_fh *fh;
int i;
- printk(KERN_DEBUG "vivi: open called (minor=%d)\n",minor);
+ printk(KERN_DEBUG "vivi: open called (minor=%d)\n", minor);
list_for_each_entry(dev, &vivi_devlist, vivi_devlist)
- if (dev->vfd.minor == minor)
+ if (dev->vfd->minor == minor)
goto found;
return -ENODEV;
-found:
-
-
+found:
/* If more than one user, mutex should be added */
dev->users++;
- dprintk(1, "open minor=%d type=%s users=%d\n", minor,
+ dprintk(dev, 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);
+ fh = kzalloc(sizeof(*fh), GFP_KERNEL);
if (NULL == fh) {
dev->users--;
return -ENOMEM;
/* Put all controls at a sane state */
for (i = 0; i < ARRAY_SIZE(vivi_qctrl); i++)
- qctl_regs[i] =vivi_qctrl[i].default_value;
-
- dprintk(1,"Open: fh=0x%08lx, dev=0x%08lx, dev->vidq=0x%08lx\n",
- (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq);
- dprintk(1,"Open: list_empty queued=%d\n",list_empty(&dev->vidq.queued));
- dprintk(1,"Open: list_empty active=%d\n",list_empty(&dev->vidq.active));
+ qctl_regs[i] = vivi_qctrl[i].default_value;
/* Resets frame counters */
- dev->h=0;
- dev->m=0;
- dev->s=0;
- dev->us=0;
- dev->jiffies=jiffies;
- sprintf(dev->timestr,"%02d:%02d:%02d:%03d",
- dev->h,dev->m,dev->s,(dev->us+500)/1000);
+ dev->h = 0;
+ dev->m = 0;
+ dev->s = 0;
+ dev->ms = 0;
+ dev->mv_count = 0;
+ dev->jiffies = jiffies;
+ sprintf(dev->timestr, "%02d:%02d:%02d:%03d",
+ dev->h, dev->m, dev->s, dev->ms);
videobuf_queue_vmalloc_init(&fh->vb_vidq, &vivi_video_qops,
- NULL, NULL,
- fh->type,
- V4L2_FIELD_INTERLACED,
- sizeof(struct vivi_buffer),fh);
+ NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED,
+ sizeof(struct vivi_buffer), fh);
return 0;
}
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 (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
return videobuf_read_stream(&fh->vb_vidq, data, count, ppos, 0,
file->f_flags & O_NONBLOCK);
}
vivi_poll(struct file *file, struct poll_table_struct *wait)
{
struct vivi_fh *fh = file->private_data;
+ struct vivi_dev *dev = fh->dev;
struct videobuf_queue *q = &fh->vb_vidq;
- dprintk(1,"%s\n",__FUNCTION__);
+ dprintk(dev, 1, "%s\n", __FUNCTION__);
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
return POLLERR;
return videobuf_poll_stream(file, q, wait);
}
-static int vivi_release(struct inode *inode, struct file *file)
+static int vivi_close(struct inode *inode, struct file *file)
{
struct vivi_fh *fh = file->private_data;
struct vivi_dev *dev = fh->dev;
int minor = iminor(inode);
vivi_stop_thread(vidq);
+ videobuf_stop(&fh->vb_vidq);
videobuf_mmap_free(&fh->vb_vidq);
- kfree (fh);
+ kfree(fh);
dev->users--;
- printk(KERN_DEBUG "vivi: close called (minor=%d, users=%d)\n",minor,dev->users);
+ dprintk(dev, 1, "close called (minor=%d, users=%d)\n",
+ minor, dev->users);
return 0;
}
-static int
-vivi_mmap(struct file *file, struct vm_area_struct * vma)
+static int vivi_release(void)
{
- struct vivi_fh *fh = file->private_data;
+ struct vivi_dev *dev;
+ struct list_head *list;
+
+ while (!list_empty(&vivi_devlist)) {
+ list = vivi_devlist.next;
+ list_del(list);
+ dev = list_entry(list, struct vivi_dev, vivi_devlist);
+
+ if (-1 != dev->vfd->minor)
+ video_unregister_device(dev->vfd);
+ else
+ video_device_release(dev->vfd);
+
+ kfree(dev);
+ }
+
+ return 0;
+}
+
+static int vivi_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct vivi_fh *fh = file->private_data;
+ struct vivi_dev *dev = fh->dev;
int ret;
- dprintk (1,"mmap called, vma=0x%08lx\n",(unsigned long)vma);
+ dprintk(dev, 1, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
- ret=videobuf_mmap_mapper(&fh->vb_vidq, vma);
+ ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
- dprintk (1,"vma start=0x%08lx, size=%ld, ret=%d\n",
+ dprintk(dev, 1, "vma start=0x%08lx, size=%ld, ret=%d\n",
(unsigned long)vma->vm_start,
(unsigned long)vma->vm_end-(unsigned long)vma->vm_start,
ret);
static const struct file_operations vivi_fops = {
.owner = THIS_MODULE,
.open = vivi_open,
- .release = vivi_release,
+ .release = vivi_close,
.read = vivi_read,
.poll = vivi_poll,
.ioctl = video_ioctl2, /* V4L2 ioctl handler */
.llseek = no_llseek,
};
-static struct video_device vivi = {
+static struct video_device vivi_template = {
.name = "vivi",
.type = VID_TYPE_CAPTURE,
.fops = &vivi_fops,
.minor = -1,
-// .release = video_device_release,
+ .release = video_device_release,
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_cap = vidioc_enum_fmt_cap,
#ifdef CONFIG_VIDEO_V4L1_COMPAT
.vidiocgmbuf = vidiocgmbuf,
#endif
- .tvnorms = V4L2_STD_NTSC_M,
+ .tvnorms = V4L2_STD_525_60,
.current_norm = V4L2_STD_NTSC_M,
};
/* -----------------------------------------------------------------
static int __init vivi_init(void)
{
- int ret;
+ int ret = -ENOMEM, i;
struct vivi_dev *dev;
+ struct video_device *vfd;
- dev = kzalloc(sizeof(*dev),GFP_KERNEL);
- if (NULL == dev)
- return -ENOMEM;
- list_add_tail(&dev->vivi_devlist,&vivi_devlist);
+ for (i = 0; i < n_devs; i++) {
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (NULL == dev)
+ break;
- /* init video dma queues */
- INIT_LIST_HEAD(&dev->vidq.active);
- INIT_LIST_HEAD(&dev->vidq.queued);
- init_waitqueue_head(&dev->vidq.wq);
+ list_add_tail(&dev->vivi_devlist, &vivi_devlist);
- /* initialize locks */
- mutex_init(&dev->lock);
+ /* init video dma queues */
+ INIT_LIST_HEAD(&dev->vidq.active);
+ INIT_LIST_HEAD(&dev->vidq.queued);
+ init_waitqueue_head(&dev->vidq.wq);
- dev->vidq.timeout.function = vivi_vid_timeout;
- dev->vidq.timeout.data = (unsigned long)dev;
- init_timer(&dev->vidq.timeout);
+ /* initialize locks */
+ mutex_init(&dev->lock);
+ spin_lock_init(&dev->slock);
- ret = video_register_device(&vivi, VFL_TYPE_GRABBER, video_nr);
- printk(KERN_INFO "Video Technology Magazine Virtual Video Capture Board (Load status: %d)\n", ret);
+ dev->vidq.timeout.function = vivi_vid_timeout;
+ dev->vidq.timeout.data = (unsigned long)dev;
+ init_timer(&dev->vidq.timeout);
+
+ vfd = video_device_alloc();
+ if (NULL == vfd)
+ break;
+
+ *vfd = vivi_template;
+
+ ret = video_register_device(vfd, VFL_TYPE_GRABBER, video_nr);
+ if (ret < 0)
+ break;
+
+ snprintf(vfd->name, sizeof(vfd->name), "%s (%i)",
+ vivi_template.name, vfd->minor);
+
+ if (video_nr >= 0)
+ video_nr++;
+
+ dev->vfd = vfd;
+ }
+
+ if (ret < 0) {
+ vivi_release();
+ printk(KERN_INFO "Error %d while loading vivi driver\n", ret);
+ } else
+ printk(KERN_INFO "Video Technology Magazine Virtual Video "
+ "Capture Board successfully loaded.\n");
return ret;
}
static void __exit vivi_exit(void)
{
- struct vivi_dev *h;
- struct list_head *list;
-
- while (!list_empty(&vivi_devlist)) {
- list = vivi_devlist.next;
- list_del(list);
- h = list_entry(list, struct vivi_dev, vivi_devlist);
- kfree (h);
- }
- video_unregister_device(&vivi);
+ vivi_release();
}
module_init(vivi_init);
MODULE_LICENSE("Dual BSD/GPL");
module_param(video_nr, int, 0);
+MODULE_PARM_DESC(video_nr, "video iminor start number");
-module_param_named(debug,vivi.debug, int, 0644);
-MODULE_PARM_DESC(debug,"activates debug info");
+module_param(n_devs, int, 0);
+MODULE_PARM_DESC(n_devs, "number of video devices to create");
-module_param(vid_limit,int,0644);
-MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes");
+module_param_named(debug, vivi_template.debug, int, 0444);
+MODULE_PARM_DESC(debug, "activates debug info");
+module_param(vid_limit, int, 0644);
+MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
git.openpandora.org / pandora-kernel.git / blobdiff