[media] rename most media/video pci drivers to media/pci

Rename all PCI drivers with their own directory under
drivers/media/video into drivers/media/pci and update the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 1070 deletions

diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c
deleted file mode 100644
index 88bce907cdef..000000000000
--- a/drivers/media/video/ivtv/ivtv-fileops.c
+++ /dev/null
@@ -1,1070 +0,0 @@
-/*
-    file operation functions
-    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
-    Copyright (C) 2004  Chris Kennedy <c@groovy.org>
-    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "ivtv-driver.h"
-#include "ivtv-fileops.h"
-#include "ivtv-i2c.h"
-#include "ivtv-queue.h"
-#include "ivtv-udma.h"
-#include "ivtv-irq.h"
-#include "ivtv-vbi.h"
-#include "ivtv-mailbox.h"
-#include "ivtv-routing.h"
-#include "ivtv-streams.h"
-#include "ivtv-yuv.h"
-#include "ivtv-ioctl.h"
-#include "ivtv-cards.h"
-#include "ivtv-firmware.h"
-#include <media/v4l2-event.h>
-#include <media/saa7115.h>
-
-/* This function tries to claim the stream for a specific file descriptor.
-   If no one else is using this stream then the stream is claimed and
-   associated VBI streams are also automatically claimed.
-   Possible error returns: -EBUSY if someone else has claimed
-   the stream or 0 on success. */
-static int ivtv_claim_stream(struct ivtv_open_id *id, int type)
-{
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[type];
-	struct ivtv_stream *s_vbi;
-	int vbi_type;
-
-	if (test_and_set_bit(IVTV_F_S_CLAIMED, &s->s_flags)) {
-		/* someone already claimed this stream */
-		if (s->fh == &id->fh) {
-			/* yes, this file descriptor did. So that's OK. */
-			return 0;
-		}
-		if (s->fh == NULL && (type == IVTV_DEC_STREAM_TYPE_VBI ||
-					 type == IVTV_ENC_STREAM_TYPE_VBI)) {
-			/* VBI is handled already internally, now also assign
-			   the file descriptor to this stream for external
-			   reading of the stream. */
-			s->fh = &id->fh;
-			IVTV_DEBUG_INFO("Start Read VBI\n");
-			return 0;
-		}
-		/* someone else is using this stream already */
-		IVTV_DEBUG_INFO("Stream %d is busy\n", type);
-		return -EBUSY;
-	}
-	s->fh = &id->fh;
-	if (type == IVTV_DEC_STREAM_TYPE_VBI) {
-		/* Enable reinsertion interrupt */
-		ivtv_clear_irq_mask(itv, IVTV_IRQ_DEC_VBI_RE_INSERT);
-	}
-
-	/* IVTV_DEC_STREAM_TYPE_MPG needs to claim IVTV_DEC_STREAM_TYPE_VBI,
-	   IVTV_ENC_STREAM_TYPE_MPG needs to claim IVTV_ENC_STREAM_TYPE_VBI
-	   (provided VBI insertion is on and sliced VBI is selected), for all
-	   other streams we're done */
-	if (type == IVTV_DEC_STREAM_TYPE_MPG) {
-		vbi_type = IVTV_DEC_STREAM_TYPE_VBI;
-	} else if (type == IVTV_ENC_STREAM_TYPE_MPG &&
-		   itv->vbi.insert_mpeg && !ivtv_raw_vbi(itv)) {
-		vbi_type = IVTV_ENC_STREAM_TYPE_VBI;
-	} else {
-		return 0;
-	}
-	s_vbi = &itv->streams[vbi_type];
-
-	if (!test_and_set_bit(IVTV_F_S_CLAIMED, &s_vbi->s_flags)) {
-		/* Enable reinsertion interrupt */
-		if (vbi_type == IVTV_DEC_STREAM_TYPE_VBI)
-			ivtv_clear_irq_mask(itv, IVTV_IRQ_DEC_VBI_RE_INSERT);
-	}
-	/* mark that it is used internally */
-	set_bit(IVTV_F_S_INTERNAL_USE, &s_vbi->s_flags);
-	return 0;
-}
-
-/* This function releases a previously claimed stream. It will take into
-   account associated VBI streams. */
-void ivtv_release_stream(struct ivtv_stream *s)
-{
-	struct ivtv *itv = s->itv;
-	struct ivtv_stream *s_vbi;
-
-	s->fh = NULL;
-	if ((s->type == IVTV_DEC_STREAM_TYPE_VBI || s->type == IVTV_ENC_STREAM_TYPE_VBI) &&
-		test_bit(IVTV_F_S_INTERNAL_USE, &s->s_flags)) {
-		/* this stream is still in use internally */
-		return;
-	}
-	if (!test_and_clear_bit(IVTV_F_S_CLAIMED, &s->s_flags)) {
-		IVTV_DEBUG_WARN("Release stream %s not in use!\n", s->name);
-		return;
-	}
-
-	ivtv_flush_queues(s);
-
-	/* disable reinsertion interrupt */
-	if (s->type == IVTV_DEC_STREAM_TYPE_VBI)
-		ivtv_set_irq_mask(itv, IVTV_IRQ_DEC_VBI_RE_INSERT);
-
-	/* IVTV_DEC_STREAM_TYPE_MPG needs to release IVTV_DEC_STREAM_TYPE_VBI,
-	   IVTV_ENC_STREAM_TYPE_MPG needs to release IVTV_ENC_STREAM_TYPE_VBI,
-	   for all other streams we're done */
-	if (s->type == IVTV_DEC_STREAM_TYPE_MPG)
-		s_vbi = &itv->streams[IVTV_DEC_STREAM_TYPE_VBI];
-	else if (s->type == IVTV_ENC_STREAM_TYPE_MPG)
-		s_vbi = &itv->streams[IVTV_ENC_STREAM_TYPE_VBI];
-	else
-		return;
-
-	/* clear internal use flag */
-	if (!test_and_clear_bit(IVTV_F_S_INTERNAL_USE, &s_vbi->s_flags)) {
-		/* was already cleared */
-		return;
-	}
-	if (s_vbi->fh) {
-		/* VBI stream still claimed by a file descriptor */
-		return;
-	}
-	/* disable reinsertion interrupt */
-	if (s_vbi->type == IVTV_DEC_STREAM_TYPE_VBI)
-		ivtv_set_irq_mask(itv, IVTV_IRQ_DEC_VBI_RE_INSERT);
-	clear_bit(IVTV_F_S_CLAIMED, &s_vbi->s_flags);
-	ivtv_flush_queues(s_vbi);
-}
-
-static void ivtv_dualwatch(struct ivtv *itv)
-{
-	struct v4l2_tuner vt;
-	u32 new_stereo_mode;
-	const u32 dual = 0x02;
-
-	new_stereo_mode = v4l2_ctrl_g_ctrl(itv->cxhdl.audio_mode);
-	memset(&vt, 0, sizeof(vt));
-	ivtv_call_all(itv, tuner, g_tuner, &vt);
-	if (vt.audmode == V4L2_TUNER_MODE_LANG1_LANG2 && (vt.rxsubchans & V4L2_TUNER_SUB_LANG2))
-		new_stereo_mode = dual;
-
-	if (new_stereo_mode == itv->dualwatch_stereo_mode)
-		return;
-
-	IVTV_DEBUG_INFO("dualwatch: change stereo flag from 0x%x to 0x%x.\n",
-			   itv->dualwatch_stereo_mode, new_stereo_mode);
-	if (v4l2_ctrl_s_ctrl(itv->cxhdl.audio_mode, new_stereo_mode))
-		IVTV_DEBUG_INFO("dualwatch: changing stereo flag failed\n");
-}
-
-static void ivtv_update_pgm_info(struct ivtv *itv)
-{
-	u32 wr_idx = (read_enc(itv->pgm_info_offset) - itv->pgm_info_offset - 4) / 24;
-	int cnt;
-	int i = 0;
-
-	if (wr_idx >= itv->pgm_info_num) {
-		IVTV_DEBUG_WARN("Invalid PGM index %d (>= %d)\n", wr_idx, itv->pgm_info_num);
-		return;
-	}
-	cnt = (wr_idx + itv->pgm_info_num - itv->pgm_info_write_idx) % itv->pgm_info_num;
-	while (i < cnt) {
-		int idx = (itv->pgm_info_write_idx + i) % itv->pgm_info_num;
-		struct v4l2_enc_idx_entry *e = itv->pgm_info + idx;
-		u32 addr = itv->pgm_info_offset + 4 + idx * 24;
-		const int mapping[8] = { -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, -1,
-			V4L2_ENC_IDX_FRAME_B, -1, -1, -1 };
-					// 1=I, 2=P, 4=B
-
-		e->offset = read_enc(addr + 4) + ((u64)read_enc(addr + 8) << 32);
-		if (e->offset > itv->mpg_data_received) {
-			break;
-		}
-		e->offset += itv->vbi_data_inserted;
-		e->length = read_enc(addr);
-		e->pts = read_enc(addr + 16) + ((u64)(read_enc(addr + 20) & 1) << 32);
-		e->flags = mapping[read_enc(addr + 12) & 7];
-		i++;
-	}
-	itv->pgm_info_write_idx = (itv->pgm_info_write_idx + i) % itv->pgm_info_num;
-}
-
-static struct ivtv_buffer *ivtv_get_buffer(struct ivtv_stream *s, int non_block, int *err)
-{
-	struct ivtv *itv = s->itv;
-	struct ivtv_stream *s_vbi = &itv->streams[IVTV_ENC_STREAM_TYPE_VBI];
-	struct ivtv_buffer *buf;
-	DEFINE_WAIT(wait);
-
-	*err = 0;
-	while (1) {
-		if (s->type == IVTV_ENC_STREAM_TYPE_MPG) {
-			/* Process pending program info updates and pending VBI data */
-			ivtv_update_pgm_info(itv);
-
-			if (time_after(jiffies,
-				       itv->dualwatch_jiffies +
-				       msecs_to_jiffies(1000))) {
-				itv->dualwatch_jiffies = jiffies;
-				ivtv_dualwatch(itv);
-			}
-
-			if (test_bit(IVTV_F_S_INTERNAL_USE, &s_vbi->s_flags) &&
-			    !test_bit(IVTV_F_S_APPL_IO, &s_vbi->s_flags)) {
-				while ((buf = ivtv_dequeue(s_vbi, &s_vbi->q_full))) {
-					/* byteswap and process VBI data */
-					ivtv_process_vbi_data(itv, buf, s_vbi->dma_pts, s_vbi->type);
-					ivtv_enqueue(s_vbi, buf, &s_vbi->q_free);
-				}
-			}
-			buf = &itv->vbi.sliced_mpeg_buf;
-			if (buf->readpos != buf->bytesused) {
-				return buf;
-			}
-		}
-
-		/* do we have leftover data? */
-		buf = ivtv_dequeue(s, &s->q_io);
-		if (buf)
-			return buf;
-
-		/* do we have new data? */
-		buf = ivtv_dequeue(s, &s->q_full);
-		if (buf) {
-			if ((buf->b_flags & IVTV_F_B_NEED_BUF_SWAP) == 0)
-				return buf;
-			buf->b_flags &= ~IVTV_F_B_NEED_BUF_SWAP;
-			if (s->type == IVTV_ENC_STREAM_TYPE_MPG)
-				/* byteswap MPG data */
-				ivtv_buf_swap(buf);
-			else if (s->type != IVTV_DEC_STREAM_TYPE_VBI) {
-				/* byteswap and process VBI data */
-				ivtv_process_vbi_data(itv, buf, s->dma_pts, s->type);
-			}
-			return buf;
-		}
-
-		/* return if end of stream */
-		if (s->type != IVTV_DEC_STREAM_TYPE_VBI && !test_bit(IVTV_F_S_STREAMING, &s->s_flags)) {
-			IVTV_DEBUG_INFO("EOS %s\n", s->name);
-			return NULL;
-		}
-
-		/* return if file was opened with O_NONBLOCK */
-		if (non_block) {
-			*err = -EAGAIN;
-			return NULL;
-		}
-
-		/* wait for more data to arrive */
-		mutex_unlock(&itv->serialize_lock);
-		prepare_to_wait(&s->waitq, &wait, TASK_INTERRUPTIBLE);
-		/* New buffers might have become available before we were added to the waitqueue */
-		if (!s->q_full.buffers)
-			schedule();
-		finish_wait(&s->waitq, &wait);
-		mutex_lock(&itv->serialize_lock);
-		if (signal_pending(current)) {
-			/* return if a signal was received */
-			IVTV_DEBUG_INFO("User stopped %s\n", s->name);
-			*err = -EINTR;
-			return NULL;
-		}
-	}
-}
-
-static void ivtv_setup_sliced_vbi_buf(struct ivtv *itv)
-{
-	int idx = itv->vbi.inserted_frame % IVTV_VBI_FRAMES;
-
-	itv->vbi.sliced_mpeg_buf.buf = itv->vbi.sliced_mpeg_data[idx];
-	itv->vbi.sliced_mpeg_buf.bytesused = itv->vbi.sliced_mpeg_size[idx];
-	itv->vbi.sliced_mpeg_buf.readpos = 0;
-}
-
-static size_t ivtv_copy_buf_to_user(struct ivtv_stream *s, struct ivtv_buffer *buf,
-		char __user *ubuf, size_t ucount)
-{
-	struct ivtv *itv = s->itv;
-	size_t len = buf->bytesused - buf->readpos;
-
-	if (len > ucount) len = ucount;
-	if (itv->vbi.insert_mpeg && s->type == IVTV_ENC_STREAM_TYPE_MPG &&
-	    !ivtv_raw_vbi(itv) && buf != &itv->vbi.sliced_mpeg_buf) {
-		const char *start = buf->buf + buf->readpos;
-		const char *p = start + 1;
-		const u8 *q;
-		u8 ch = itv->search_pack_header ? 0xba : 0xe0;
-		int stuffing, i;
-
-		while (start + len > p && (q = memchr(p, 0, start + len - p))) {
-			p = q + 1;
-			if ((char *)q + 15 >= buf->buf + buf->bytesused ||
-			    q[1] != 0 || q[2] != 1 || q[3] != ch) {
-				continue;
-			}
-			if (!itv->search_pack_header) {
-				if ((q[6] & 0xc0) != 0x80)
-					continue;
-				if (((q[7] & 0xc0) == 0x80 && (q[9] & 0xf0) == 0x20) ||
-				    ((q[7] & 0xc0) == 0xc0 && (q[9] & 0xf0) == 0x30)) {
-					ch = 0xba;
-					itv->search_pack_header = 1;
-					p = q + 9;
-				}
-				continue;
-			}
-			stuffing = q[13] & 7;
-			/* all stuffing bytes must be 0xff */
-			for (i = 0; i < stuffing; i++)
-				if (q[14 + i] != 0xff)
-					break;
-			if (i == stuffing && (q[4] & 0xc4) == 0x44 && (q[12] & 3) == 3 &&
-					q[14 + stuffing] == 0 && q[15 + stuffing] == 0 &&
-					q[16 + stuffing] == 1) {
-				itv->search_pack_header = 0;
-				len = (char *)q - start;
-				ivtv_setup_sliced_vbi_buf(itv);
-				break;
-			}
-		}
-	}
-	if (copy_to_user(ubuf, (u8 *)buf->buf + buf->readpos, len)) {
-		IVTV_DEBUG_WARN("copy %zd bytes to user failed for %s\n", len, s->name);
-		return -EFAULT;
-	}
-	/*IVTV_INFO("copied %lld %d %d %d %d %d vbi %d\n", itv->mpg_data_received, len, ucount,
-			buf->readpos, buf->bytesused, buf->bytesused - buf->readpos - len,
-			buf == &itv->vbi.sliced_mpeg_buf); */
-	buf->readpos += len;
-	if (s->type == IVTV_ENC_STREAM_TYPE_MPG && buf != &itv->vbi.sliced_mpeg_buf)
-		itv->mpg_data_received += len;
-	return len;
-}
-
-static ssize_t ivtv_read(struct ivtv_stream *s, char __user *ubuf, size_t tot_count, int non_block)
-{
-	struct ivtv *itv = s->itv;
-	size_t tot_written = 0;
-	int single_frame = 0;
-
-	if (atomic_read(&itv->capturing) == 0 && s->fh == NULL) {
-		/* shouldn't happen */
-		IVTV_DEBUG_WARN("Stream %s not initialized before read\n", s->name);
-		return -EIO;
-	}
-
-	/* Each VBI buffer is one frame, the v4l2 API says that for VBI the frames should
-	   arrive one-by-one, so make sure we never output more than one VBI frame at a time */
-	if (s->type == IVTV_DEC_STREAM_TYPE_VBI ||
-	    (s->type == IVTV_ENC_STREAM_TYPE_VBI && !ivtv_raw_vbi(itv)))
-		single_frame = 1;
-
-	for (;;) {
-		struct ivtv_buffer *buf;
-		int rc;
-
-		buf = ivtv_get_buffer(s, non_block, &rc);
-		/* if there is no data available... */
-		if (buf == NULL) {
-			/* if we got data, then return that regardless */
-			if (tot_written)
-				break;
-			/* EOS condition */
-			if (rc == 0) {
-				clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags);
-				clear_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-				ivtv_release_stream(s);
-			}
-			/* set errno */
-			return rc;
-		}
-		rc = ivtv_copy_buf_to_user(s, buf, ubuf + tot_written, tot_count - tot_written);
-		if (buf != &itv->vbi.sliced_mpeg_buf) {
-			ivtv_enqueue(s, buf, (buf->readpos == buf->bytesused) ? &s->q_free : &s->q_io);
-		}
-		else if (buf->readpos == buf->bytesused) {
-			int idx = itv->vbi.inserted_frame % IVTV_VBI_FRAMES;
-			itv->vbi.sliced_mpeg_size[idx] = 0;
-			itv->vbi.inserted_frame++;
-			itv->vbi_data_inserted += buf->bytesused;
-		}
-		if (rc < 0)
-			return rc;
-		tot_written += rc;
-
-		if (tot_written == tot_count || single_frame)
-			break;
-	}
-	return tot_written;
-}
-
-static ssize_t ivtv_read_pos(struct ivtv_stream *s, char __user *ubuf, size_t count,
-			loff_t *pos, int non_block)
-{
-	ssize_t rc = count ? ivtv_read(s, ubuf, count, non_block) : 0;
-	struct ivtv *itv = s->itv;
-
-	IVTV_DEBUG_HI_FILE("read %zd from %s, got %zd\n", count, s->name, rc);
-	if (rc > 0)
-		pos += rc;
-	return rc;
-}
-
-int ivtv_start_capture(struct ivtv_open_id *id)
-{
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-	struct ivtv_stream *s_vbi;
-
-	if (s->type == IVTV_ENC_STREAM_TYPE_RAD ||
-	    s->type == IVTV_DEC_STREAM_TYPE_MPG ||
-	    s->type == IVTV_DEC_STREAM_TYPE_YUV ||
-	    s->type == IVTV_DEC_STREAM_TYPE_VOUT) {
-		/* you cannot read from these stream types. */
-		return -EPERM;
-	}
-
-	/* Try to claim this stream. */
-	if (ivtv_claim_stream(id, s->type))
-		return -EBUSY;
-
-	/* This stream does not need to start capturing */
-	if (s->type == IVTV_DEC_STREAM_TYPE_VBI) {
-		set_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-		return 0;
-	}
-
-	/* If capture is already in progress, then we also have to
-	   do nothing extra. */
-	if (test_bit(IVTV_F_S_STREAMOFF, &s->s_flags) || test_and_set_bit(IVTV_F_S_STREAMING, &s->s_flags)) {
-		set_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-		return 0;
-	}
-
-	/* Start VBI capture if required */
-	s_vbi = &itv->streams[IVTV_ENC_STREAM_TYPE_VBI];
-	if (s->type == IVTV_ENC_STREAM_TYPE_MPG &&
-	    test_bit(IVTV_F_S_INTERNAL_USE, &s_vbi->s_flags) &&
-	    !test_and_set_bit(IVTV_F_S_STREAMING, &s_vbi->s_flags)) {
-		/* Note: the IVTV_ENC_STREAM_TYPE_VBI is claimed
-		   automatically when the MPG stream is claimed.
-		   We only need to start the VBI capturing. */
-		if (ivtv_start_v4l2_encode_stream(s_vbi)) {
-			IVTV_DEBUG_WARN("VBI capture start failed\n");
-
-			/* Failure, clean up and return an error */
-			clear_bit(IVTV_F_S_STREAMING, &s_vbi->s_flags);
-			clear_bit(IVTV_F_S_STREAMING, &s->s_flags);
-			/* also releases the associated VBI stream */
-			ivtv_release_stream(s);
-			return -EIO;
-		}
-		IVTV_DEBUG_INFO("VBI insertion started\n");
-	}
-
-	/* Tell the card to start capturing */
-	if (!ivtv_start_v4l2_encode_stream(s)) {
-		/* We're done */
-		set_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-		/* Resume a possibly paused encoder */
-		if (test_and_clear_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags))
-			ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 1);
-		return 0;
-	}
-
-	/* failure, clean up */
-	IVTV_DEBUG_WARN("Failed to start capturing for stream %s\n", s->name);
-
-	/* Note: the IVTV_ENC_STREAM_TYPE_VBI is released
-	   automatically when the MPG stream is released.
-	   We only need to stop the VBI capturing. */
-	if (s->type == IVTV_ENC_STREAM_TYPE_MPG &&
-	    test_bit(IVTV_F_S_STREAMING, &s_vbi->s_flags)) {
-		ivtv_stop_v4l2_encode_stream(s_vbi, 0);
-		clear_bit(IVTV_F_S_STREAMING, &s_vbi->s_flags);
-	}
-	clear_bit(IVTV_F_S_STREAMING, &s->s_flags);
-	ivtv_release_stream(s);
-	return -EIO;
-}
-
-ssize_t ivtv_v4l2_read(struct file * filp, char __user *buf, size_t count, loff_t * pos)
-{
-	struct ivtv_open_id *id = fh2id(filp->private_data);
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-	ssize_t rc;
-
-	IVTV_DEBUG_HI_FILE("read %zd bytes from %s\n", count, s->name);
-
-	if (mutex_lock_interruptible(&itv->serialize_lock))
-		return -ERESTARTSYS;
-	rc = ivtv_start_capture(id);
-	if (!rc)
-		rc = ivtv_read_pos(s, buf, count, pos, filp->f_flags & O_NONBLOCK);
-	mutex_unlock(&itv->serialize_lock);
-	return rc;
-}
-
-int ivtv_start_decoding(struct ivtv_open_id *id, int speed)
-{
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-	int rc;
-
-	if (atomic_read(&itv->decoding) == 0) {
-		if (ivtv_claim_stream(id, s->type)) {
-			/* someone else is using this stream already */
-			IVTV_DEBUG_WARN("start decode, stream already claimed\n");
-			return -EBUSY;
-		}
-		rc = ivtv_start_v4l2_decode_stream(s, 0);
-		if (rc < 0) {
-			if (rc == -EAGAIN)
-				rc = ivtv_start_v4l2_decode_stream(s, 0);
-			if (rc < 0)
-				return rc;
-		}
-	}
-	if (s->type == IVTV_DEC_STREAM_TYPE_MPG)
-		return ivtv_set_speed(itv, speed);
-	return 0;
-}
-
-static ssize_t ivtv_write(struct file *filp, const char __user *user_buf, size_t count, loff_t *pos)
-{
-	struct ivtv_open_id *id = fh2id(filp->private_data);
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-	struct yuv_playback_info *yi = &itv->yuv_info;
-	struct ivtv_buffer *buf;
-	struct ivtv_queue q;
-	int bytes_written = 0;
-	int mode;
-	int rc;
-	DEFINE_WAIT(wait);
-
-	IVTV_DEBUG_HI_FILE("write %zd bytes to %s\n", count, s->name);
-
-	if (s->type != IVTV_DEC_STREAM_TYPE_MPG &&
-	    s->type != IVTV_DEC_STREAM_TYPE_YUV &&
-	    s->type != IVTV_DEC_STREAM_TYPE_VOUT)
-		/* not decoder streams */
-		return -EPERM;
-
-	/* Try to claim this stream */
-	if (ivtv_claim_stream(id, s->type))
-		return -EBUSY;
-
-	/* This stream does not need to start any decoding */
-	if (s->type == IVTV_DEC_STREAM_TYPE_VOUT) {
-		int elems = count / sizeof(struct v4l2_sliced_vbi_data);
-
-		set_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-		return ivtv_write_vbi_from_user(itv,
-		   (const struct v4l2_sliced_vbi_data __user *)user_buf, elems);
-	}
-
-	mode = s->type == IVTV_DEC_STREAM_TYPE_MPG ? OUT_MPG : OUT_YUV;
-
-	if (ivtv_set_output_mode(itv, mode) != mode) {
-	    ivtv_release_stream(s);
-	    return -EBUSY;
-	}
-	ivtv_queue_init(&q);
-	set_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-
-	/* Start decoder (returns 0 if already started) */
-	rc = ivtv_start_decoding(id, itv->speed);
-	if (rc) {
-		IVTV_DEBUG_WARN("Failed start decode stream %s\n", s->name);
-
-		/* failure, clean up */
-		clear_bit(IVTV_F_S_STREAMING, &s->s_flags);
-		clear_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-		return rc;
-	}
-
-retry:
-	/* If possible, just DMA the entire frame - Check the data transfer size
-	since we may get here before the stream has been fully set-up */
-	if (mode == OUT_YUV && s->q_full.length == 0 && itv->dma_data_req_size) {
-		while (count >= itv->dma_data_req_size) {
-			rc = ivtv_yuv_udma_stream_frame(itv, (void __user *)user_buf);
-
-			if (rc < 0)
-				return rc;
-
-			bytes_written += itv->dma_data_req_size;
-			user_buf += itv->dma_data_req_size;
-			count -= itv->dma_data_req_size;
-		}
-		if (count == 0) {
-			IVTV_DEBUG_HI_FILE("Wrote %d bytes to %s (%d)\n", bytes_written, s->name, s->q_full.bytesused);
-			return bytes_written;
-		}
-	}
-
-	for (;;) {
-		/* Gather buffers */
-		while (q.length - q.bytesused < count && (buf = ivtv_dequeue(s, &s->q_io)))
-			ivtv_enqueue(s, buf, &q);
-		while (q.length - q.bytesused < count && (buf = ivtv_dequeue(s, &s->q_free))) {
-			ivtv_enqueue(s, buf, &q);
-		}
-		if (q.buffers)
-			break;
-		if (filp->f_flags & O_NONBLOCK)
-			return -EAGAIN;
-		mutex_unlock(&itv->serialize_lock);
-		prepare_to_wait(&s->waitq, &wait, TASK_INTERRUPTIBLE);
-		/* New buffers might have become free before we were added to the waitqueue */
-		if (!s->q_free.buffers)
-			schedule();
-		finish_wait(&s->waitq, &wait);
-		mutex_lock(&itv->serialize_lock);
-		if (signal_pending(current)) {
-			IVTV_DEBUG_INFO("User stopped %s\n", s->name);
-			return -EINTR;
-		}
-	}
-
-	/* copy user data into buffers */
-	while ((buf = ivtv_dequeue(s, &q))) {
-		/* yuv is a pain. Don't copy more data than needed for a single
-		   frame, otherwise we lose sync with the incoming stream */
-		if (s->type == IVTV_DEC_STREAM_TYPE_YUV &&
-		    yi->stream_size + count > itv->dma_data_req_size)
-			rc  = ivtv_buf_copy_from_user(s, buf, user_buf,
-				itv->dma_data_req_size - yi->stream_size);
-		else
-			rc = ivtv_buf_copy_from_user(s, buf, user_buf, count);
-
-		/* Make sure we really got all the user data */
-		if (rc < 0) {
-			ivtv_queue_move(s, &q, NULL, &s->q_free, 0);
-			return rc;
-		}
-		user_buf += rc;
-		count -= rc;
-		bytes_written += rc;
-
-		if (s->type == IVTV_DEC_STREAM_TYPE_YUV) {
-			yi->stream_size += rc;
-			/* If we have a complete yuv frame, break loop now */
-			if (yi->stream_size == itv->dma_data_req_size) {
-				ivtv_enqueue(s, buf, &s->q_full);
-				yi->stream_size = 0;
-				break;
-			}
-		}
-
-		if (buf->bytesused != s->buf_size) {
-			/* incomplete, leave in q_io for next time */
-			ivtv_enqueue(s, buf, &s->q_io);
-			break;
-		}
-		/* Byteswap MPEG buffer */
-		if (s->type == IVTV_DEC_STREAM_TYPE_MPG)
-			ivtv_buf_swap(buf);
-		ivtv_enqueue(s, buf, &s->q_full);
-	}
-
-	if (test_bit(IVTV_F_S_NEEDS_DATA, &s->s_flags)) {
-		if (s->q_full.length >= itv->dma_data_req_size) {
-			int got_sig;
-
-			if (mode == OUT_YUV)
-				ivtv_yuv_setup_stream_frame(itv);
-
-			mutex_unlock(&itv->serialize_lock);
-			prepare_to_wait(&itv->dma_waitq, &wait, TASK_INTERRUPTIBLE);
-			while (!(got_sig = signal_pending(current)) &&
-					test_bit(IVTV_F_S_DMA_PENDING, &s->s_flags)) {
-				schedule();
-			}
-			finish_wait(&itv->dma_waitq, &wait);
-			mutex_lock(&itv->serialize_lock);
-			if (got_sig) {
-				IVTV_DEBUG_INFO("User interrupted %s\n", s->name);
-				return -EINTR;
-			}
-
-			clear_bit(IVTV_F_S_NEEDS_DATA, &s->s_flags);
-			ivtv_queue_move(s, &s->q_full, NULL, &s->q_predma, itv->dma_data_req_size);
-			ivtv_dma_stream_dec_prepare(s, itv->dma_data_req_offset + IVTV_DECODER_OFFSET, 1);
-		}
-	}
-	/* more user data is available, wait until buffers become free
-	   to transfer the rest. */
-	if (count && !(filp->f_flags & O_NONBLOCK))
-		goto retry;
-	IVTV_DEBUG_HI_FILE("Wrote %d bytes to %s (%d)\n", bytes_written, s->name, s->q_full.bytesused);
-	return bytes_written;
-}
-
-ssize_t ivtv_v4l2_write(struct file *filp, const char __user *user_buf, size_t count, loff_t *pos)
-{
-	struct ivtv_open_id *id = fh2id(filp->private_data);
-	struct ivtv *itv = id->itv;
-	ssize_t res;
-
-	if (mutex_lock_interruptible(&itv->serialize_lock))
-		return -ERESTARTSYS;
-	res = ivtv_write(filp, user_buf, count, pos);
-	mutex_unlock(&itv->serialize_lock);
-	return res;
-}
-
-unsigned int ivtv_v4l2_dec_poll(struct file *filp, poll_table *wait)
-{
-	struct ivtv_open_id *id = fh2id(filp->private_data);
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-	int res = 0;
-
-	/* add stream's waitq to the poll list */
-	IVTV_DEBUG_HI_FILE("Decoder poll\n");
-
-	/* If there are subscribed events, then only use the new event
-	   API instead of the old video.h based API. */
-	if (!list_empty(&id->fh.subscribed)) {
-		poll_wait(filp, &id->fh.wait, wait);
-		/* Turn off the old-style vsync events */
-		clear_bit(IVTV_F_I_EV_VSYNC_ENABLED, &itv->i_flags);
-		if (v4l2_event_pending(&id->fh))
-			res = POLLPRI;
-	} else {
-		/* This is the old-style API which is here only for backwards
-		   compatibility. */
-		poll_wait(filp, &s->waitq, wait);
-		set_bit(IVTV_F_I_EV_VSYNC_ENABLED, &itv->i_flags);
-		if (test_bit(IVTV_F_I_EV_VSYNC, &itv->i_flags) ||
-		    test_bit(IVTV_F_I_EV_DEC_STOPPED, &itv->i_flags))
-			res = POLLPRI;
-	}
-
-	/* Allow write if buffers are available for writing */
-	if (s->q_free.buffers)
-		res |= POLLOUT | POLLWRNORM;
-	return res;
-}
-
-unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table *wait)
-{
-	unsigned long req_events = poll_requested_events(wait);
-	struct ivtv_open_id *id = fh2id(filp->private_data);
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-	int eof = test_bit(IVTV_F_S_STREAMOFF, &s->s_flags);
-	unsigned res = 0;
-
-	/* Start a capture if there is none */
-	if (!eof && !test_bit(IVTV_F_S_STREAMING, &s->s_flags) &&
-			(req_events & (POLLIN | POLLRDNORM))) {
-		int rc;
-
-		mutex_lock(&itv->serialize_lock);
-		rc = ivtv_start_capture(id);
-		mutex_unlock(&itv->serialize_lock);
-		if (rc) {
-			IVTV_DEBUG_INFO("Could not start capture for %s (%d)\n",
-					s->name, rc);
-			return POLLERR;
-		}
-		IVTV_DEBUG_FILE("Encoder poll started capture\n");
-	}
-
-	/* add stream's waitq to the poll list */
-	IVTV_DEBUG_HI_FILE("Encoder poll\n");
-	poll_wait(filp, &s->waitq, wait);
-	if (v4l2_event_pending(&id->fh))
-		res |= POLLPRI;
-	else
-		poll_wait(filp, &id->fh.wait, wait);
-
-	if (s->q_full.length || s->q_io.length)
-		return res | POLLIN | POLLRDNORM;
-	if (eof)
-		return res | POLLHUP;
-	return res;
-}
-
-void ivtv_stop_capture(struct ivtv_open_id *id, int gop_end)
-{
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-
-	IVTV_DEBUG_FILE("close() of %s\n", s->name);
-
-	/* 'Unclaim' this stream */
-
-	/* Stop capturing */
-	if (test_bit(IVTV_F_S_STREAMING, &s->s_flags)) {
-		struct ivtv_stream *s_vbi = &itv->streams[IVTV_ENC_STREAM_TYPE_VBI];
-
-		IVTV_DEBUG_INFO("close stopping capture\n");
-		/* Special case: a running VBI capture for VBI insertion
-		   in the mpeg stream. Need to stop that too. */
-		if (id->type == IVTV_ENC_STREAM_TYPE_MPG &&
-		    test_bit(IVTV_F_S_STREAMING, &s_vbi->s_flags) &&
-		    !test_bit(IVTV_F_S_APPL_IO, &s_vbi->s_flags)) {
-			IVTV_DEBUG_INFO("close stopping embedded VBI capture\n");
-			ivtv_stop_v4l2_encode_stream(s_vbi, 0);
-		}
-		if ((id->type == IVTV_DEC_STREAM_TYPE_VBI ||
-		     id->type == IVTV_ENC_STREAM_TYPE_VBI) &&
-		    test_bit(IVTV_F_S_INTERNAL_USE, &s->s_flags)) {
-			/* Also used internally, don't stop capturing */
-			s->fh = NULL;
-		}
-		else {
-			ivtv_stop_v4l2_encode_stream(s, gop_end);
-		}
-	}
-	if (!gop_end) {
-		clear_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-		clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags);
-		ivtv_release_stream(s);
-	}
-}
-
-static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts)
-{
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-
-	IVTV_DEBUG_FILE("close() of %s\n", s->name);
-
-	if (id->type == IVTV_DEC_STREAM_TYPE_YUV &&
-		test_bit(IVTV_F_I_DECODING_YUV, &itv->i_flags)) {
-		/* Restore registers we've changed & clean up any mess */
-		ivtv_yuv_close(itv);
-	}
-
-	/* Stop decoding */
-	if (test_bit(IVTV_F_S_STREAMING, &s->s_flags)) {
-		IVTV_DEBUG_INFO("close stopping decode\n");
-
-		ivtv_stop_v4l2_decode_stream(s, flags, pts);
-		itv->output_mode = OUT_NONE;
-	}
-	clear_bit(IVTV_F_S_APPL_IO, &s->s_flags);
-	clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags);
-
-	if (itv->output_mode == OUT_UDMA_YUV && id->yuv_frames)
-		itv->output_mode = OUT_NONE;
-
-	itv->speed = 0;
-	clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags);
-	ivtv_release_stream(s);
-}
-
-int ivtv_v4l2_close(struct file *filp)
-{
-	struct v4l2_fh *fh = filp->private_data;
-	struct ivtv_open_id *id = fh2id(fh);
-	struct ivtv *itv = id->itv;
-	struct ivtv_stream *s = &itv->streams[id->type];
-
-	IVTV_DEBUG_FILE("close %s\n", s->name);
-
-	mutex_lock(&itv->serialize_lock);
-
-	/* Stop radio */
-	if (id->type == IVTV_ENC_STREAM_TYPE_RAD &&
-			v4l2_fh_is_singular_file(filp)) {
-		/* Closing radio device, return to TV mode */
-		ivtv_mute(itv);
-		/* Mark that the radio is no longer in use */
-		clear_bit(IVTV_F_I_RADIO_USER, &itv->i_flags);
-		/* Switch tuner to TV */
-		ivtv_call_all(itv, core, s_std, itv->std);
-		/* Select correct audio input (i.e. TV tuner or Line in) */
-		ivtv_audio_set_io(itv);
-		if (itv->hw_flags & IVTV_HW_SAA711X) {
-			ivtv_call_hw(itv, IVTV_HW_SAA711X, video, s_crystal_freq,
-					SAA7115_FREQ_32_11_MHZ, 0);
-		}
-		if (atomic_read(&itv->capturing) > 0) {
-			/* Undo video mute */
-			ivtv_vapi(itv, CX2341X_ENC_MUTE_VIDEO, 1,
-					v4l2_ctrl_g_ctrl(itv->cxhdl.video_mute) |
-					(v4l2_ctrl_g_ctrl(itv->cxhdl.video_mute_yuv) << 8));
-		}
-		/* Done! Unmute and continue. */
-		ivtv_unmute(itv);
-	}
-
-	v4l2_fh_del(fh);
-	v4l2_fh_exit(fh);
-
-	/* Easy case first: this stream was never claimed by us */
-	if (s->fh != &id->fh)
-		goto close_done;
-
-	/* 'Unclaim' this stream */
-
-	if (s->type >= IVTV_DEC_STREAM_TYPE_MPG) {
-		struct ivtv_stream *s_vout = &itv->streams[IVTV_DEC_STREAM_TYPE_VOUT];
-
-		ivtv_stop_decoding(id, V4L2_DEC_CMD_STOP_TO_BLACK | V4L2_DEC_CMD_STOP_IMMEDIATELY, 0);
-
-		/* If all output streams are closed, and if the user doesn't have
-		   IVTV_DEC_STREAM_TYPE_VOUT open, then disable CC on TV-out. */
-		if (itv->output_mode == OUT_NONE && !test_bit(IVTV_F_S_APPL_IO, &s_vout->s_flags)) {
-			/* disable CC on TV-out */
-			ivtv_disable_cc(itv);
-		}
-	} else {
-		ivtv_stop_capture(id, 0);
-	}
-close_done:
-	kfree(id);
-	mutex_unlock(&itv->serialize_lock);
-	return 0;
-}
-
-static int ivtv_open(struct file *filp)
-{
-	struct video_device *vdev = video_devdata(filp);
-	struct ivtv_stream *s = video_get_drvdata(vdev);
-	struct ivtv *itv = s->itv;
-	struct ivtv_open_id *item;
-	int res = 0;
-
-	IVTV_DEBUG_FILE("open %s\n", s->name);
-
-	if (ivtv_init_on_first_open(itv)) {
-		IVTV_ERR("Failed to initialize on device %s\n",
-			 video_device_node_name(vdev));
-		return -ENXIO;
-	}
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-	/* Unless ivtv_fw_debug is set, error out if firmware dead. */
-	if (ivtv_fw_debug) {
-		IVTV_WARN("Opening %s with dead firmware lockout disabled\n",
-			  video_device_node_name(vdev));
-		IVTV_WARN("Selected firmware errors will be ignored\n");
-	} else {
-#else
-	if (1) {
-#endif
-		res = ivtv_firmware_check(itv, "ivtv_serialized_open");
-		if (res == -EAGAIN)
-			res = ivtv_firmware_check(itv, "ivtv_serialized_open");
-		if (res < 0)
-			return -EIO;
-	}
-
-	if (s->type == IVTV_DEC_STREAM_TYPE_MPG &&
-		test_bit(IVTV_F_S_CLAIMED, &itv->streams[IVTV_DEC_STREAM_TYPE_YUV].s_flags))
-		return -EBUSY;
-
-	if (s->type == IVTV_DEC_STREAM_TYPE_YUV &&
-		test_bit(IVTV_F_S_CLAIMED, &itv->streams[IVTV_DEC_STREAM_TYPE_MPG].s_flags))
-		return -EBUSY;
-
-	if (s->type == IVTV_DEC_STREAM_TYPE_YUV) {
-		if (read_reg(0x82c) == 0) {
-			IVTV_ERR("Tried to open YUV output device but need to send data to mpeg decoder before it can be used\n");
-			/* return -ENODEV; */
-		}
-		ivtv_udma_alloc(itv);
-	}
-
-	/* Allocate memory */
-	item = kzalloc(sizeof(struct ivtv_open_id), GFP_KERNEL);
-	if (NULL == item) {
-		IVTV_DEBUG_WARN("nomem on v4l2 open\n");
-		return -ENOMEM;
-	}
-	v4l2_fh_init(&item->fh, s->vdev);
-	item->itv = itv;
-	item->type = s->type;
-
-	filp->private_data = &item->fh;
-	v4l2_fh_add(&item->fh);
-
-	if (item->type == IVTV_ENC_STREAM_TYPE_RAD &&
-			v4l2_fh_is_singular_file(filp)) {
-		if (!test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) {
-			if (atomic_read(&itv->capturing) > 0) {
-				/* switching to radio while capture is
-				   in progress is not polite */
-				v4l2_fh_del(&item->fh);
-				v4l2_fh_exit(&item->fh);
-				kfree(item);
-				return -EBUSY;
-			}
-		}
-		/* Mark that the radio is being used. */
-		set_bit(IVTV_F_I_RADIO_USER, &itv->i_flags);
-		/* We have the radio */
-		ivtv_mute(itv);
-		/* Switch tuner to radio */
-		ivtv_call_all(itv, tuner, s_radio);
-		/* Select the correct audio input (i.e. radio tuner) */
-		ivtv_audio_set_io(itv);
-		if (itv->hw_flags & IVTV_HW_SAA711X) {
-			ivtv_call_hw(itv, IVTV_HW_SAA711X, video, s_crystal_freq,
-				SAA7115_FREQ_32_11_MHZ, SAA7115_FREQ_FL_APLL);
-		}
-		/* Done! Unmute and continue. */
-		ivtv_unmute(itv);
-	}
-
-	/* YUV or MPG Decoding Mode? */
-	if (s->type == IVTV_DEC_STREAM_TYPE_MPG) {
-		clear_bit(IVTV_F_I_DEC_YUV, &itv->i_flags);
-	} else if (s->type == IVTV_DEC_STREAM_TYPE_YUV) {
-		set_bit(IVTV_F_I_DEC_YUV, &itv->i_flags);
-		/* For yuv, we need to know the dma size before we start */
-		itv->dma_data_req_size =
-				1080 * ((itv->yuv_info.v4l2_src_h + 31) & ~31);
-		itv->yuv_info.stream_size = 0;
-	}
-	return 0;
-}
-
-int ivtv_v4l2_open(struct file *filp)
-{
-	struct video_device *vdev = video_devdata(filp);
-	int res;
-
-	if (mutex_lock_interruptible(vdev->lock))
-		return -ERESTARTSYS;
-	res = ivtv_open(filp);
-	mutex_unlock(vdev->lock);
-	return res;
-}
-
-void ivtv_mute(struct ivtv *itv)
-{
-	if (atomic_read(&itv->capturing))
-		ivtv_vapi(itv, CX2341X_ENC_MUTE_AUDIO, 1, 1);
-	IVTV_DEBUG_INFO("Mute\n");
-}
-
-void ivtv_unmute(struct ivtv *itv)
-{
-	if (atomic_read(&itv->capturing)) {
-		ivtv_msleep_timeout(100, 0);
-		ivtv_vapi(itv, CX2341X_ENC_MISC, 1, 12);
-		ivtv_vapi(itv, CX2341X_ENC_MUTE_AUDIO, 1, 0);
-	}
-	IVTV_DEBUG_INFO("Unmute\n");
-}