#include <linux/ioctl.h>
#include <linux/wait.h>
#include <linux/uaccess.h>
-#include "dmxdev.h"
+#include <media/dmxdev.h>
+#include <media/dvb_vb2.h>
static int debug;
struct dvb_device *dvbdev = file->private_data;
struct dmxdev *dmxdev = dvbdev->priv;
struct dmx_frontend *front;
+#ifndef DVB_MMAP
+ bool need_ringbuffer = false;
+#else
+ const bool need_ringbuffer = true;
+#endif
dprintk("%s\n", __func__);
return -ENODEV;
}
+#ifndef DVB_MMAP
+ if ((file->f_flags & O_ACCMODE) == O_RDONLY)
+ need_ringbuffer = true;
+#else
if ((file->f_flags & O_ACCMODE) == O_RDWR) {
if (!(dmxdev->capabilities & DMXDEV_CAP_DUPLEX)) {
mutex_unlock(&dmxdev->mutex);
return -EOPNOTSUPP;
}
}
+#endif
- if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
+ if (need_ringbuffer) {
void *mem;
if (!dvbdev->readers) {
return -ENOMEM;
}
dvb_ringbuffer_init(&dmxdev->dvr_buffer, mem, DVR_BUFFER_SIZE);
+ dvb_vb2_init(&dmxdev->dvr_vb2_ctx, "dvr",
+ file->f_flags & O_NONBLOCK);
dvbdev->readers--;
}
{
struct dvb_device *dvbdev = file->private_data;
struct dmxdev *dmxdev = dvbdev->priv;
+#ifndef DVB_MMAP
+ bool need_ringbuffer = false;
+#else
+ const bool need_ringbuffer = true;
+#endif
mutex_lock(&dmxdev->mutex);
dmxdev->demux->connect_frontend(dmxdev->demux,
dmxdev->dvr_orig_fe);
}
- if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
+#ifndef DVB_MMAP
+ if ((file->f_flags & O_ACCMODE) == O_RDONLY)
+ need_ringbuffer = true;
+#endif
+
+ if (need_ringbuffer) {
+ if (dvb_vb2_is_streaming(&dmxdev->dvr_vb2_ctx))
+ dvb_vb2_stream_off(&dmxdev->dvr_vb2_ctx);
+ dvb_vb2_release(&dmxdev->dvr_vb2_ctx);
dvbdev->readers++;
if (dmxdev->dvr_buffer.data) {
void *mem = dmxdev->dvr_buffer.data;
struct dmxdev_filter *dmxdevfilter = filter->priv;
int ret;
- if (dmxdevfilter->buffer.error) {
+ if (!dvb_vb2_is_streaming(&dmxdevfilter->vb2_ctx) &&
+ dmxdevfilter->buffer.error) {
wake_up(&dmxdevfilter->buffer.queue);
return 0;
}
}
del_timer(&dmxdevfilter->timer);
dprintk("section callback %*ph\n", 6, buffer1);
- ret = dvb_dmxdev_buffer_write(&dmxdevfilter->buffer, buffer1,
- buffer1_len);
- if (ret == buffer1_len) {
- ret = dvb_dmxdev_buffer_write(&dmxdevfilter->buffer, buffer2,
- buffer2_len);
+ if (dvb_vb2_is_streaming(&dmxdevfilter->vb2_ctx)) {
+ ret = dvb_vb2_fill_buffer(&dmxdevfilter->vb2_ctx,
+ buffer1, buffer1_len);
+ if (ret == buffer1_len)
+ ret = dvb_vb2_fill_buffer(&dmxdevfilter->vb2_ctx,
+ buffer2, buffer2_len);
+ } else {
+ ret = dvb_dmxdev_buffer_write(&dmxdevfilter->buffer,
+ buffer1, buffer1_len);
+ if (ret == buffer1_len) {
+ ret = dvb_dmxdev_buffer_write(&dmxdevfilter->buffer,
+ buffer2, buffer2_len);
+ }
}
if (ret < 0)
dmxdevfilter->buffer.error = ret;
{
struct dmxdev_filter *dmxdevfilter = feed->priv;
struct dvb_ringbuffer *buffer;
+#ifdef DVB_MMAP
+ struct dvb_vb2_ctx *ctx;
+#endif
int ret;
spin_lock(&dmxdevfilter->dev->lock);
return 0;
}
- if (dmxdevfilter->params.pes.output == DMX_OUT_TAP
- || dmxdevfilter->params.pes.output == DMX_OUT_TSDEMUX_TAP)
+ if (dmxdevfilter->params.pes.output == DMX_OUT_TAP ||
+ dmxdevfilter->params.pes.output == DMX_OUT_TSDEMUX_TAP) {
buffer = &dmxdevfilter->buffer;
- else
+#ifdef DVB_MMAP
+ ctx = &dmxdevfilter->vb2_ctx;
+#endif
+ } else {
buffer = &dmxdevfilter->dev->dvr_buffer;
- if (buffer->error) {
- spin_unlock(&dmxdevfilter->dev->lock);
- wake_up(&buffer->queue);
- return 0;
+#ifdef DVB_MMAP
+ ctx = &dmxdevfilter->dev->dvr_vb2_ctx;
+#endif
+ }
+
+ if (dvb_vb2_is_streaming(ctx)) {
+ ret = dvb_vb2_fill_buffer(ctx, buffer1, buffer1_len);
+ if (ret == buffer1_len)
+ ret = dvb_vb2_fill_buffer(ctx, buffer2, buffer2_len);
+ } else {
+ if (buffer->error) {
+ spin_unlock(&dmxdevfilter->dev->lock);
+ wake_up(&buffer->queue);
+ return 0;
+ }
+ ret = dvb_dmxdev_buffer_write(buffer, buffer1, buffer1_len);
+ if (ret == buffer1_len)
+ ret = dvb_dmxdev_buffer_write(buffer,
+ buffer2, buffer2_len);
}
- ret = dvb_dmxdev_buffer_write(buffer, buffer1, buffer1_len);
- if (ret == buffer1_len)
- ret = dvb_dmxdev_buffer_write(buffer, buffer2, buffer2_len);
if (ret < 0)
buffer->error = ret;
spin_unlock(&dmxdevfilter->dev->lock);
file->private_data = dmxdevfilter;
dvb_ringbuffer_init(&dmxdevfilter->buffer, NULL, 8192);
+ dvb_vb2_init(&dmxdevfilter->vb2_ctx, "demux_filter",
+ file->f_flags & O_NONBLOCK);
dmxdevfilter->type = DMXDEV_TYPE_NONE;
dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_ALLOCATED);
timer_setup(&dmxdevfilter->timer, dvb_dmxdev_filter_timeout, 0);
{
mutex_lock(&dmxdev->mutex);
mutex_lock(&dmxdevfilter->mutex);
+ if (dvb_vb2_is_streaming(&dmxdevfilter->vb2_ctx))
+ dvb_vb2_stream_off(&dmxdevfilter->vb2_ctx);
+ dvb_vb2_release(&dmxdevfilter->vb2_ctx);
+
dvb_dmxdev_filter_stop(dmxdevfilter);
dvb_dmxdev_filter_reset(dmxdevfilter);
mutex_unlock(&dmxdevfilter->mutex);
break;
+#ifdef DVB_MMAP
+ case DMX_REQBUFS:
+ if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+ mutex_unlock(&dmxdev->mutex);
+ return -ERESTARTSYS;
+ }
+ ret = dvb_vb2_reqbufs(&dmxdevfilter->vb2_ctx, parg);
+ mutex_unlock(&dmxdevfilter->mutex);
+ break;
+
+ case DMX_QUERYBUF:
+ if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+ mutex_unlock(&dmxdev->mutex);
+ return -ERESTARTSYS;
+ }
+ ret = dvb_vb2_querybuf(&dmxdevfilter->vb2_ctx, parg);
+ mutex_unlock(&dmxdevfilter->mutex);
+ break;
+
+ case DMX_EXPBUF:
+ if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+ mutex_unlock(&dmxdev->mutex);
+ return -ERESTARTSYS;
+ }
+ ret = dvb_vb2_expbuf(&dmxdevfilter->vb2_ctx, parg);
+ mutex_unlock(&dmxdevfilter->mutex);
+ break;
+
+ case DMX_QBUF:
+ if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+ mutex_unlock(&dmxdev->mutex);
+ return -ERESTARTSYS;
+ }
+ ret = dvb_vb2_qbuf(&dmxdevfilter->vb2_ctx, parg);
+ if (ret == 0 && !dvb_vb2_is_streaming(&dmxdevfilter->vb2_ctx))
+ ret = dvb_vb2_stream_on(&dmxdevfilter->vb2_ctx);
+ mutex_unlock(&dmxdevfilter->mutex);
+ break;
+
+ case DMX_DQBUF:
+ if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+ mutex_unlock(&dmxdev->mutex);
+ return -ERESTARTSYS;
+ }
+ ret = dvb_vb2_dqbuf(&dmxdevfilter->vb2_ctx, parg);
+ mutex_unlock(&dmxdevfilter->mutex);
+ break;
+#endif
default:
ret = -EINVAL;
break;
__poll_t mask = 0;
if ((!dmxdevfilter) || dmxdevfilter->dev->exit)
- return POLLERR;
+ return EPOLLERR;
+ if (dvb_vb2_is_streaming(&dmxdevfilter->vb2_ctx))
+ return dvb_vb2_poll(&dmxdevfilter->vb2_ctx, file, wait);
poll_wait(file, &dmxdevfilter->buffer.queue, wait);
return 0;
if (dmxdevfilter->buffer.error)
- mask |= (POLLIN | POLLRDNORM | POLLPRI | POLLERR);
+ mask |= (EPOLLIN | EPOLLRDNORM | EPOLLPRI | EPOLLERR);
if (!dvb_ringbuffer_empty(&dmxdevfilter->buffer))
- mask |= (POLLIN | POLLRDNORM | POLLPRI);
+ mask |= (EPOLLIN | EPOLLRDNORM | EPOLLPRI);
return mask;
}
-static int dvb_demux_release(struct inode *inode, struct file *file)
+#ifdef DVB_MMAP
+static int dvb_demux_mmap(struct file *file, struct vm_area_struct *vma)
{
struct dmxdev_filter *dmxdevfilter = file->private_data;
struct dmxdev *dmxdev = dmxdevfilter->dev;
+ int ret;
+
+ if (mutex_lock_interruptible(&dmxdev->mutex))
+ return -ERESTARTSYS;
+
+ if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
+ mutex_unlock(&dmxdev->mutex);
+ return -ERESTARTSYS;
+ }
+ ret = dvb_vb2_mmap(&dmxdevfilter->vb2_ctx, vma);
+
+ mutex_unlock(&dmxdevfilter->mutex);
+ mutex_unlock(&dmxdev->mutex);
+ return ret;
+}
+#endif
+
+static int dvb_demux_release(struct inode *inode, struct file *file)
+{
+ struct dmxdev_filter *dmxdevfilter = file->private_data;
+ struct dmxdev *dmxdev = dmxdevfilter->dev;
int ret;
ret = dvb_dmxdev_filter_free(dmxdev, dmxdevfilter);
.release = dvb_demux_release,
.poll = dvb_demux_poll,
.llseek = default_llseek,
+#ifdef DVB_MMAP
+ .mmap = dvb_demux_mmap,
+#endif
};
static const struct dvb_device dvbdev_demux = {
ret = dvb_dvr_set_buffer_size(dmxdev, arg);
break;
+#ifdef DVB_MMAP
+ case DMX_REQBUFS:
+ ret = dvb_vb2_reqbufs(&dmxdev->dvr_vb2_ctx, parg);
+ break;
+
+ case DMX_QUERYBUF:
+ ret = dvb_vb2_querybuf(&dmxdev->dvr_vb2_ctx, parg);
+ break;
+
+ case DMX_EXPBUF:
+ ret = dvb_vb2_expbuf(&dmxdev->dvr_vb2_ctx, parg);
+ break;
+
+ case DMX_QBUF:
+ ret = dvb_vb2_qbuf(&dmxdev->dvr_vb2_ctx, parg);
+ if (ret == 0 && !dvb_vb2_is_streaming(&dmxdev->dvr_vb2_ctx))
+ ret = dvb_vb2_stream_on(&dmxdev->dvr_vb2_ctx);
+ break;
+
+ case DMX_DQBUF:
+ ret = dvb_vb2_dqbuf(&dmxdev->dvr_vb2_ctx, parg);
+ break;
+#endif
default:
ret = -EINVAL;
break;
struct dvb_device *dvbdev = file->private_data;
struct dmxdev *dmxdev = dvbdev->priv;
__poll_t mask = 0;
+#ifndef DVB_MMAP
+ bool need_ringbuffer = false;
+#else
+ const bool need_ringbuffer = true;
+#endif
dprintk("%s\n", __func__);
if (dmxdev->exit)
- return POLLERR;
+ return EPOLLERR;
+ if (dvb_vb2_is_streaming(&dmxdev->dvr_vb2_ctx))
+ return dvb_vb2_poll(&dmxdev->dvr_vb2_ctx, file, wait);
poll_wait(file, &dmxdev->dvr_buffer.queue, wait);
- if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
+#ifndef DVB_MMAP
+ if ((file->f_flags & O_ACCMODE) == O_RDONLY)
+ need_ringbuffer = true;
+#endif
+ if (need_ringbuffer) {
if (dmxdev->dvr_buffer.error)
- mask |= (POLLIN | POLLRDNORM | POLLPRI | POLLERR);
+ mask |= (EPOLLIN | EPOLLRDNORM | EPOLLPRI | EPOLLERR);
if (!dvb_ringbuffer_empty(&dmxdev->dvr_buffer))
- mask |= (POLLIN | POLLRDNORM | POLLPRI);
+ mask |= (EPOLLIN | EPOLLRDNORM | EPOLLPRI);
} else
- mask |= (POLLOUT | POLLWRNORM | POLLPRI);
+ mask |= (EPOLLOUT | EPOLLWRNORM | EPOLLPRI);
return mask;
}
+#ifdef DVB_MMAP
+static int dvb_dvr_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct dvb_device *dvbdev = file->private_data;
+ struct dmxdev *dmxdev = dvbdev->priv;
+ int ret;
+
+ if (dmxdev->exit)
+ return -ENODEV;
+
+ if (mutex_lock_interruptible(&dmxdev->mutex))
+ return -ERESTARTSYS;
+
+ ret = dvb_vb2_mmap(&dmxdev->dvr_vb2_ctx, vma);
+ mutex_unlock(&dmxdev->mutex);
+ return ret;
+}
+#endif
+
static const struct file_operations dvb_dvr_fops = {
.owner = THIS_MODULE,
.read = dvb_dvr_read,
.release = dvb_dvr_release,
.poll = dvb_dvr_poll,
.llseek = default_llseek,
+#ifdef DVB_MMAP
+ .mmap = dvb_dvr_mmap,
+#endif
};
static const struct dvb_device dvbdev_dvr = {
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