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Commit c37b11bf authored by Andy Walls's avatar Andy Walls Committed by Mauro Carvalho Chehab
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V4L/DVB (13427): cx18: Rename struct cx18_queue.buffers to struct cx18_queue.depth

parent f0076e60
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+1 −1
Original line number Diff line number Diff line
@@ -285,7 +285,7 @@ struct cx18_buffer {

struct cx18_queue {
	struct list_head list;
	atomic_t buffers;
	atomic_t depth;
	u32 bytesused;
	spinlock_t lock;
};
+2 −2
Original line number Diff line number Diff line
@@ -229,7 +229,7 @@ static struct cx18_buffer *cx18_get_buffer(struct cx18_stream *s, int non_block,
		prepare_to_wait(&s->waitq, &wait, TASK_INTERRUPTIBLE);
		/* New buffers might have become available before we were added
		   to the waitqueue */
		if (!atomic_read(&s->q_full.buffers))
		if (!atomic_read(&s->q_full.depth))
			schedule();
		finish_wait(&s->waitq, &wait);
		if (signal_pending(current)) {
@@ -543,7 +543,7 @@ unsigned int cx18_v4l2_enc_poll(struct file *filp, poll_table *wait)
	CX18_DEBUG_HI_FILE("Encoder poll\n");
	poll_wait(filp, &s->waitq, wait);

	if (atomic_read(&s->q_full.buffers))
	if (atomic_read(&s->q_full.depth))
		return POLLIN | POLLRDNORM;
	if (eof)
		return POLLHUP;
+1 −1
Original line number Diff line number Diff line
@@ -910,7 +910,7 @@ static int cx18_log_status(struct file *file, void *fh)
			continue;
		CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
			  s->name, s->s_flags,
			  atomic_read(&s->q_full.buffers) * 100 / s->buffers,
			  atomic_read(&s->q_full.depth) * 100 / s->buffers,
			  (s->buffers * s->buf_size) / 1024, s->buffers);
	}
	CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
+8 −8
Original line number Diff line number Diff line
@@ -38,7 +38,7 @@ void cx18_buf_swap(struct cx18_buffer *buf)
void cx18_queue_init(struct cx18_queue *q)
{
	INIT_LIST_HEAD(&q->list);
	atomic_set(&q->buffers, 0);
	atomic_set(&q->depth, 0);
	q->bytesused = 0;
}

@@ -55,7 +55,7 @@ struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,

	/* q_busy is restricted to a max buffer count imposed by firmware */
	if (q == &s->q_busy &&
	    atomic_read(&q->buffers) >= CX18_MAX_FW_MDLS_PER_STREAM)
	    atomic_read(&q->depth) >= CX18_MAX_FW_MDLS_PER_STREAM)
		q = &s->q_free;

	spin_lock(&q->lock);
@@ -65,7 +65,7 @@ struct cx18_queue *_cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf,
	else
		list_add_tail(&buf->list, &q->list); /* FIFO */
	q->bytesused += buf->bytesused - buf->readpos;
	atomic_inc(&q->buffers);
	atomic_inc(&q->depth);

	spin_unlock(&q->lock);
	return q;
@@ -81,7 +81,7 @@ struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q)
		list_del_init(&buf->list);
		q->bytesused -= buf->bytesused - buf->readpos;
		buf->skipped = 0;
		atomic_dec(&q->buffers);
		atomic_dec(&q->depth);
	}
	spin_unlock(&q->lock);
	return buf;
@@ -113,7 +113,7 @@ struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id,
		 */
		if (buf->id != id) {
			buf->skipped++;
			if (buf->skipped >= atomic_read(&s->q_busy.buffers)-1) {
			if (buf->skipped >= atomic_read(&s->q_busy.depth)-1) {
				/* buffer must have fallen out of rotation */
				CX18_WARN("Skipped %s, buffer %d, %d "
					  "times - it must have dropped out of "
@@ -121,7 +121,7 @@ struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id,
					  buf->skipped);
				/* Sweep it up to put it back into rotation */
				list_move_tail(&buf->list, &sweep_up);
				atomic_dec(&s->q_busy.buffers);
				atomic_dec(&s->q_busy.depth);
			}
			continue;
		}
@@ -130,7 +130,7 @@ struct cx18_buffer *cx18_queue_get_buf(struct cx18_stream *s, u32 id,
		 * will have to put it back on a queue later.
		 */
		list_del_init(&buf->list);
		atomic_dec(&s->q_busy.buffers);
		atomic_dec(&s->q_busy.depth);
		ret = buf;
		break;
	}
@@ -170,7 +170,7 @@ static void cx18_queue_flush(struct cx18_stream *s, struct cx18_queue *q)
		buf = list_first_entry(&q->list, struct cx18_buffer, list);
		list_move_tail(&buf->list, &s->q_free.list);
		buf->bytesused = buf->readpos = buf->b_flags = buf->skipped = 0;
		atomic_inc(&s->q_free.buffers);
		atomic_inc(&s->q_free.depth);
	}
	cx18_queue_init(q);
	spin_unlock(&q->lock);
+3 −3
Original line number Diff line number Diff line
@@ -470,8 +470,8 @@ void _cx18_stream_load_fw_queue(struct cx18_stream *s)
	struct cx18_queue *q;
	struct cx18_buffer *buf;

	if (atomic_read(&s->q_free.buffers) == 0 ||
	    atomic_read(&s->q_busy.buffers) >= CX18_MAX_FW_MDLS_PER_STREAM)
	if (atomic_read(&s->q_free.depth) == 0 ||
	    atomic_read(&s->q_busy.depth) >= CX18_MAX_FW_MDLS_PER_STREAM)
		return;

	/* Move from q_free to q_busy notifying the firmware, until the limit */
@@ -480,7 +480,7 @@ void _cx18_stream_load_fw_queue(struct cx18_stream *s)
		if (buf == NULL)
			break;
		q = _cx18_stream_put_buf_fw(s, buf);
	} while (atomic_read(&s->q_busy.buffers) < CX18_MAX_FW_MDLS_PER_STREAM
	} while (atomic_read(&s->q_busy.depth) < CX18_MAX_FW_MDLS_PER_STREAM
		 && q == &s->q_busy);
}