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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 12:13:30 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:36:22 -0300
commitb285192a43f0432d82c2c10974204e78af0da596 (patch)
tree618aa87e760c9c949eca9e4df6ae0eeffa11dcfc /drivers/media/video/cx18/cx18-streams.c
parent68de959f773a1d49096835c411390bceff5d1549 (diff)
[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>
Diffstat (limited to 'drivers/media/video/cx18/cx18-streams.c')
-rw-r--r--drivers/media/video/cx18/cx18-streams.c1060
1 files changed, 0 insertions, 1060 deletions
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
deleted file mode 100644
index 9d598ab88615..000000000000
--- a/drivers/media/video/cx18/cx18-streams.c
+++ /dev/null
@@ -1,1060 +0,0 @@
-/*
- * cx18 init/start/stop/exit stream functions
- *
- * Derived from ivtv-streams.c
- *
- * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
- * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
- *
- * 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 "cx18-driver.h"
-#include "cx18-io.h"
-#include "cx18-fileops.h"
-#include "cx18-mailbox.h"
-#include "cx18-i2c.h"
-#include "cx18-queue.h"
-#include "cx18-ioctl.h"
-#include "cx18-streams.h"
-#include "cx18-cards.h"
-#include "cx18-scb.h"
-#include "cx18-dvb.h"
-
-#define CX18_DSP0_INTERRUPT_MASK 0xd0004C
-
-static struct v4l2_file_operations cx18_v4l2_enc_fops = {
- .owner = THIS_MODULE,
- .read = cx18_v4l2_read,
- .open = cx18_v4l2_open,
- .unlocked_ioctl = video_ioctl2,
- .release = cx18_v4l2_close,
- .poll = cx18_v4l2_enc_poll,
- .mmap = cx18_v4l2_mmap,
-};
-
-/* offset from 0 to register ts v4l2 minors on */
-#define CX18_V4L2_ENC_TS_OFFSET 16
-/* offset from 0 to register pcm v4l2 minors on */
-#define CX18_V4L2_ENC_PCM_OFFSET 24
-/* offset from 0 to register yuv v4l2 minors on */
-#define CX18_V4L2_ENC_YUV_OFFSET 32
-
-static struct {
- const char *name;
- int vfl_type;
- int num_offset;
- int dma;
- enum v4l2_buf_type buf_type;
-} cx18_stream_info[] = {
- { /* CX18_ENC_STREAM_TYPE_MPG */
- "encoder MPEG",
- VFL_TYPE_GRABBER, 0,
- PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE,
- },
- { /* CX18_ENC_STREAM_TYPE_TS */
- "TS",
- VFL_TYPE_GRABBER, -1,
- PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE,
- },
- { /* CX18_ENC_STREAM_TYPE_YUV */
- "encoder YUV",
- VFL_TYPE_GRABBER, CX18_V4L2_ENC_YUV_OFFSET,
- PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE,
- },
- { /* CX18_ENC_STREAM_TYPE_VBI */
- "encoder VBI",
- VFL_TYPE_VBI, 0,
- PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VBI_CAPTURE,
- },
- { /* CX18_ENC_STREAM_TYPE_PCM */
- "encoder PCM audio",
- VFL_TYPE_GRABBER, CX18_V4L2_ENC_PCM_OFFSET,
- PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_PRIVATE,
- },
- { /* CX18_ENC_STREAM_TYPE_IDX */
- "encoder IDX",
- VFL_TYPE_GRABBER, -1,
- PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE,
- },
- { /* CX18_ENC_STREAM_TYPE_RAD */
- "encoder radio",
- VFL_TYPE_RADIO, 0,
- PCI_DMA_NONE, V4L2_BUF_TYPE_PRIVATE,
- },
-};
-
-
-void cx18_dma_free(struct videobuf_queue *q,
- struct cx18_stream *s, struct cx18_videobuf_buffer *buf)
-{
- videobuf_waiton(q, &buf->vb, 0, 0);
- videobuf_vmalloc_free(&buf->vb);
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-static int cx18_prepare_buffer(struct videobuf_queue *q,
- struct cx18_stream *s,
- struct cx18_videobuf_buffer *buf,
- u32 pixelformat,
- unsigned int width, unsigned int height,
- enum v4l2_field field)
-{
- struct cx18 *cx = s->cx;
- int rc = 0;
-
- /* check settings */
- buf->bytes_used = 0;
-
- if ((width < 48) || (height < 32))
- return -EINVAL;
-
- buf->vb.size = (width * height * 2);
- if ((buf->vb.baddr != 0) && (buf->vb.bsize < buf->vb.size))
- return -EINVAL;
-
- /* alloc + fill struct (if changed) */
- if (buf->vb.width != width || buf->vb.height != height ||
- buf->vb.field != field || s->pixelformat != pixelformat ||
- buf->tvnorm != cx->std) {
-
- buf->vb.width = width;
- buf->vb.height = height;
- buf->vb.field = field;
- buf->tvnorm = cx->std;
- s->pixelformat = pixelformat;
-
- /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
- UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */
- if (s->pixelformat == V4L2_PIX_FMT_HM12)
- s->vb_bytes_per_frame = height * 720 * 3 / 2;
- else
- s->vb_bytes_per_frame = height * 720 * 2;
- cx18_dma_free(q, s, buf);
- }
-
- if ((buf->vb.baddr != 0) && (buf->vb.bsize < buf->vb.size))
- return -EINVAL;
-
- if (buf->vb.field == 0)
- buf->vb.field = V4L2_FIELD_INTERLACED;
-
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- buf->vb.width = width;
- buf->vb.height = height;
- buf->vb.field = field;
- buf->tvnorm = cx->std;
- s->pixelformat = pixelformat;
-
- /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
- UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */
- if (s->pixelformat == V4L2_PIX_FMT_HM12)
- s->vb_bytes_per_frame = height * 720 * 3 / 2;
- else
- s->vb_bytes_per_frame = height * 720 * 2;
- rc = videobuf_iolock(q, &buf->vb, NULL);
- if (rc != 0)
- goto fail;
- }
- buf->vb.state = VIDEOBUF_PREPARED;
- return 0;
-
-fail:
- cx18_dma_free(q, s, buf);
- return rc;
-
-}
-
-/* VB_MIN_BUFSIZE is lcm(1440 * 480, 1440 * 576)
- 1440 is a single line of 4:2:2 YUV at 720 luma samples wide
-*/
-#define VB_MIN_BUFFERS 32
-#define VB_MIN_BUFSIZE 4147200
-
-static int buffer_setup(struct videobuf_queue *q,
- unsigned int *count, unsigned int *size)
-{
- struct cx18_stream *s = q->priv_data;
- struct cx18 *cx = s->cx;
-
- *size = 2 * cx->cxhdl.width * cx->cxhdl.height;
- if (*count == 0)
- *count = VB_MIN_BUFFERS;
-
- while (*size * *count > VB_MIN_BUFFERS * VB_MIN_BUFSIZE)
- (*count)--;
-
- q->field = V4L2_FIELD_INTERLACED;
- q->last = V4L2_FIELD_INTERLACED;
-
- return 0;
-}
-
-static int buffer_prepare(struct videobuf_queue *q,
- struct videobuf_buffer *vb,
- enum v4l2_field field)
-{
- struct cx18_videobuf_buffer *buf =
- container_of(vb, struct cx18_videobuf_buffer, vb);
- struct cx18_stream *s = q->priv_data;
- struct cx18 *cx = s->cx;
-
- return cx18_prepare_buffer(q, s, buf, s->pixelformat,
- cx->cxhdl.width, cx->cxhdl.height, field);
-}
-
-static void buffer_release(struct videobuf_queue *q,
- struct videobuf_buffer *vb)
-{
- struct cx18_videobuf_buffer *buf =
- container_of(vb, struct cx18_videobuf_buffer, vb);
- struct cx18_stream *s = q->priv_data;
-
- cx18_dma_free(q, s, buf);
-}
-
-static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
- struct cx18_videobuf_buffer *buf =
- container_of(vb, struct cx18_videobuf_buffer, vb);
- struct cx18_stream *s = q->priv_data;
-
- buf->vb.state = VIDEOBUF_QUEUED;
-
- list_add_tail(&buf->vb.queue, &s->vb_capture);
-}
-
-static struct videobuf_queue_ops cx18_videobuf_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
-};
-
-static void cx18_stream_init(struct cx18 *cx, int type)
-{
- struct cx18_stream *s = &cx->streams[type];
- struct video_device *video_dev = s->video_dev;
-
- /* we need to keep video_dev, so restore it afterwards */
- memset(s, 0, sizeof(*s));
- s->video_dev = video_dev;
-
- /* initialize cx18_stream fields */
- s->dvb = NULL;
- s->cx = cx;
- s->type = type;
- s->name = cx18_stream_info[type].name;
- s->handle = CX18_INVALID_TASK_HANDLE;
-
- s->dma = cx18_stream_info[type].dma;
- s->buffers = cx->stream_buffers[type];
- s->buf_size = cx->stream_buf_size[type];
- INIT_LIST_HEAD(&s->buf_pool);
- s->bufs_per_mdl = 1;
- s->mdl_size = s->buf_size * s->bufs_per_mdl;
-
- init_waitqueue_head(&s->waitq);
- s->id = -1;
- spin_lock_init(&s->q_free.lock);
- cx18_queue_init(&s->q_free);
- spin_lock_init(&s->q_busy.lock);
- cx18_queue_init(&s->q_busy);
- spin_lock_init(&s->q_full.lock);
- cx18_queue_init(&s->q_full);
- spin_lock_init(&s->q_idle.lock);
- cx18_queue_init(&s->q_idle);
-
- INIT_WORK(&s->out_work_order, cx18_out_work_handler);
-
- INIT_LIST_HEAD(&s->vb_capture);
- s->vb_timeout.function = cx18_vb_timeout;
- s->vb_timeout.data = (unsigned long)s;
- init_timer(&s->vb_timeout);
- spin_lock_init(&s->vb_lock);
- if (type == CX18_ENC_STREAM_TYPE_YUV) {
- spin_lock_init(&s->vbuf_q_lock);
-
- s->vb_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- videobuf_queue_vmalloc_init(&s->vbuf_q, &cx18_videobuf_qops,
- &cx->pci_dev->dev, &s->vbuf_q_lock,
- V4L2_BUF_TYPE_VIDEO_CAPTURE,
- V4L2_FIELD_INTERLACED,
- sizeof(struct cx18_videobuf_buffer),
- s, &cx->serialize_lock);
-
- /* Assume the previous pixel default */
- s->pixelformat = V4L2_PIX_FMT_HM12;
- s->vb_bytes_per_frame = cx->cxhdl.height * 720 * 3 / 2;
- }
-}
-
-static int cx18_prep_dev(struct cx18 *cx, int type)
-{
- struct cx18_stream *s = &cx->streams[type];
- u32 cap = cx->v4l2_cap;
- int num_offset = cx18_stream_info[type].num_offset;
- int num = cx->instance + cx18_first_minor + num_offset;
-
- /*
- * These five fields are always initialized.
- * For analog capture related streams, if video_dev == NULL then the
- * stream is not in use.
- * For the TS stream, if dvb == NULL then the stream is not in use.
- * In those cases no other fields but these four can be used.
- */
- s->video_dev = NULL;
- s->dvb = NULL;
- s->cx = cx;
- s->type = type;
- s->name = cx18_stream_info[type].name;
-
- /* Check whether the radio is supported */
- if (type == CX18_ENC_STREAM_TYPE_RAD && !(cap & V4L2_CAP_RADIO))
- return 0;
-
- /* Check whether VBI is supported */
- if (type == CX18_ENC_STREAM_TYPE_VBI &&
- !(cap & (V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_CAPTURE)))
- return 0;
-
- /* User explicitly selected 0 buffers for these streams, so don't
- create them. */
- if (cx18_stream_info[type].dma != PCI_DMA_NONE &&
- cx->stream_buffers[type] == 0) {
- CX18_INFO("Disabled %s device\n", cx18_stream_info[type].name);
- return 0;
- }
-
- cx18_stream_init(cx, type);
-
- /* Allocate the cx18_dvb struct only for the TS on cards with DTV */
- if (type == CX18_ENC_STREAM_TYPE_TS) {
- if (cx->card->hw_all & CX18_HW_DVB) {
- s->dvb = kzalloc(sizeof(struct cx18_dvb), GFP_KERNEL);
- if (s->dvb == NULL) {
- CX18_ERR("Couldn't allocate cx18_dvb structure"
- " for %s\n", s->name);
- return -ENOMEM;
- }
- } else {
- /* Don't need buffers for the TS, if there is no DVB */
- s->buffers = 0;
- }
- }
-
- if (num_offset == -1)
- return 0;
-
- /* allocate and initialize the v4l2 video device structure */
- s->video_dev = video_device_alloc();
- if (s->video_dev == NULL) {
- CX18_ERR("Couldn't allocate v4l2 video_device for %s\n",
- s->name);
- return -ENOMEM;
- }
-
- snprintf(s->video_dev->name, sizeof(s->video_dev->name), "%s %s",
- cx->v4l2_dev.name, s->name);
-
- s->video_dev->num = num;
- s->video_dev->v4l2_dev = &cx->v4l2_dev;
- s->video_dev->fops = &cx18_v4l2_enc_fops;
- s->video_dev->release = video_device_release;
- s->video_dev->tvnorms = V4L2_STD_ALL;
- s->video_dev->lock = &cx->serialize_lock;
- set_bit(V4L2_FL_USE_FH_PRIO, &s->video_dev->flags);
- cx18_set_funcs(s->video_dev);
- return 0;
-}
-
-/* Initialize v4l2 variables and register v4l2 devices */
-int cx18_streams_setup(struct cx18 *cx)
-{
- int type, ret;
-
- /* Setup V4L2 Devices */
- for (type = 0; type < CX18_MAX_STREAMS; type++) {
- /* Prepare device */
- ret = cx18_prep_dev(cx, type);
- if (ret < 0)
- break;
-
- /* Allocate Stream */
- ret = cx18_stream_alloc(&cx->streams[type]);
- if (ret < 0)
- break;
- }
- if (type == CX18_MAX_STREAMS)
- return 0;
-
- /* One or more streams could not be initialized. Clean 'em all up. */
- cx18_streams_cleanup(cx, 0);
- return ret;
-}
-
-static int cx18_reg_dev(struct cx18 *cx, int type)
-{
- struct cx18_stream *s = &cx->streams[type];
- int vfl_type = cx18_stream_info[type].vfl_type;
- const char *name;
- int num, ret;
-
- if (type == CX18_ENC_STREAM_TYPE_TS && s->dvb != NULL) {
- ret = cx18_dvb_register(s);
- if (ret < 0) {
- CX18_ERR("DVB failed to register\n");
- return ret;
- }
- }
-
- if (s->video_dev == NULL)
- return 0;
-
- num = s->video_dev->num;
- /* card number + user defined offset + device offset */
- if (type != CX18_ENC_STREAM_TYPE_MPG) {
- struct cx18_stream *s_mpg = &cx->streams[CX18_ENC_STREAM_TYPE_MPG];
-
- if (s_mpg->video_dev)
- num = s_mpg->video_dev->num
- + cx18_stream_info[type].num_offset;
- }
- video_set_drvdata(s->video_dev, s);
-
- /* Register device. First try the desired minor, then any free one. */
- ret = video_register_device_no_warn(s->video_dev, vfl_type, num);
- if (ret < 0) {
- CX18_ERR("Couldn't register v4l2 device for %s (device node number %d)\n",
- s->name, num);
- video_device_release(s->video_dev);
- s->video_dev = NULL;
- return ret;
- }
-
- name = video_device_node_name(s->video_dev);
-
- switch (vfl_type) {
- case VFL_TYPE_GRABBER:
- CX18_INFO("Registered device %s for %s (%d x %d.%02d kB)\n",
- name, s->name, cx->stream_buffers[type],
- cx->stream_buf_size[type] / 1024,
- (cx->stream_buf_size[type] * 100 / 1024) % 100);
- break;
-
- case VFL_TYPE_RADIO:
- CX18_INFO("Registered device %s for %s\n", name, s->name);
- break;
-
- case VFL_TYPE_VBI:
- if (cx->stream_buffers[type])
- CX18_INFO("Registered device %s for %s "
- "(%d x %d bytes)\n",
- name, s->name, cx->stream_buffers[type],
- cx->stream_buf_size[type]);
- else
- CX18_INFO("Registered device %s for %s\n",
- name, s->name);
- break;
- }
-
- return 0;
-}
-
-/* Register v4l2 devices */
-int cx18_streams_register(struct cx18 *cx)
-{
- int type;
- int err;
- int ret = 0;
-
- /* Register V4L2 devices */
- for (type = 0; type < CX18_MAX_STREAMS; type++) {
- err = cx18_reg_dev(cx, type);
- if (err && ret == 0)
- ret = err;
- }
-
- if (ret == 0)
- return 0;
-
- /* One or more streams could not be initialized. Clean 'em all up. */
- cx18_streams_cleanup(cx, 1);
- return ret;
-}
-
-/* Unregister v4l2 devices */
-void cx18_streams_cleanup(struct cx18 *cx, int unregister)
-{
- struct video_device *vdev;
- int type;
-
- /* Teardown all streams */
- for (type = 0; type < CX18_MAX_STREAMS; type++) {
-
- /* The TS has a cx18_dvb structure, not a video_device */
- if (type == CX18_ENC_STREAM_TYPE_TS) {
- if (cx->streams[type].dvb != NULL) {
- if (unregister)
- cx18_dvb_unregister(&cx->streams[type]);
- kfree(cx->streams[type].dvb);
- cx->streams[type].dvb = NULL;
- cx18_stream_free(&cx->streams[type]);
- }
- continue;
- }
-
- /* No struct video_device, but can have buffers allocated */
- if (type == CX18_ENC_STREAM_TYPE_IDX) {
- /* If the module params didn't inhibit IDX ... */
- if (cx->stream_buffers[type] != 0) {
- cx->stream_buffers[type] = 0;
- /*
- * Before calling cx18_stream_free(),
- * check if the IDX stream was actually set up.
- * Needed, since the cx18_probe() error path
- * exits through here as well as normal clean up
- */
- if (cx->streams[type].buffers != 0)
- cx18_stream_free(&cx->streams[type]);
- }
- continue;
- }
-
- /* If struct video_device exists, can have buffers allocated */
- vdev = cx->streams[type].video_dev;
-
- cx->streams[type].video_dev = NULL;
- if (vdev == NULL)
- continue;
-
- if (type == CX18_ENC_STREAM_TYPE_YUV)
- videobuf_mmap_free(&cx->streams[type].vbuf_q);
-
- cx18_stream_free(&cx->streams[type]);
-
- /* Unregister or release device */
- if (unregister)
- video_unregister_device(vdev);
- else
- video_device_release(vdev);
- }
-}
-
-static void cx18_vbi_setup(struct cx18_stream *s)
-{
- struct cx18 *cx = s->cx;
- int raw = cx18_raw_vbi(cx);
- u32 data[CX2341X_MBOX_MAX_DATA];
- int lines;
-
- if (cx->is_60hz) {
- cx->vbi.count = 12;
- cx->vbi.start[0] = 10;
- cx->vbi.start[1] = 273;
- } else { /* PAL/SECAM */
- cx->vbi.count = 18;
- cx->vbi.start[0] = 6;
- cx->vbi.start[1] = 318;
- }
-
- /* setup VBI registers */
- if (raw)
- v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &cx->vbi.in.fmt.vbi);
- else
- v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &cx->vbi.in.fmt.sliced);
-
- /*
- * Send the CX18_CPU_SET_RAW_VBI_PARAM API command to setup Encoder Raw
- * VBI when the first analog capture channel starts, as once it starts
- * (e.g. MPEG), we can't effect any change in the Encoder Raw VBI setup
- * (i.e. for the VBI capture channels). We also send it for each
- * analog capture channel anyway just to make sure we get the proper
- * behavior
- */
- if (raw) {
- lines = cx->vbi.count * 2;
- } else {
- /*
- * For 525/60 systems, according to the VIP 2 & BT.656 std:
- * The EAV RP code's Field bit toggles on line 4, a few lines
- * after the Vertcal Blank bit has already toggled.
- * Tell the encoder to capture 21-4+1=18 lines per field,
- * since we want lines 10 through 21.
- *
- * For 625/50 systems, according to the VIP 2 & BT.656 std:
- * The EAV RP code's Field bit toggles on line 1, a few lines
- * after the Vertcal Blank bit has already toggled.
- * (We've actually set the digitizer so that the Field bit
- * toggles on line 2.) Tell the encoder to capture 23-2+1=22
- * lines per field, since we want lines 6 through 23.
- */
- lines = cx->is_60hz ? (21 - 4 + 1) * 2 : (23 - 2 + 1) * 2;
- }
-
- data[0] = s->handle;
- /* Lines per field */
- data[1] = (lines / 2) | ((lines / 2) << 16);
- /* bytes per line */
- data[2] = (raw ? vbi_active_samples
- : (cx->is_60hz ? vbi_hblank_samples_60Hz
- : vbi_hblank_samples_50Hz));
- /* Every X number of frames a VBI interrupt arrives
- (frames as in 25 or 30 fps) */
- data[3] = 1;
- /*
- * Set the SAV/EAV RP codes to look for as start/stop points
- * when in VIP-1.1 mode
- */
- if (raw) {
- /*
- * Start codes for beginning of "active" line in vertical blank
- * 0x20 ( VerticalBlank )
- * 0x60 ( EvenField VerticalBlank )
- */
- data[4] = 0x20602060;
- /*
- * End codes for end of "active" raw lines and regular lines
- * 0x30 ( VerticalBlank HorizontalBlank)
- * 0x70 ( EvenField VerticalBlank HorizontalBlank)
- * 0x90 (Task HorizontalBlank)
- * 0xd0 (Task EvenField HorizontalBlank)
- */
- data[5] = 0x307090d0;
- } else {
- /*
- * End codes for active video, we want data in the hblank region
- * 0xb0 (Task 0 VerticalBlank HorizontalBlank)
- * 0xf0 (Task EvenField VerticalBlank HorizontalBlank)
- *
- * Since the V bit is only allowed to toggle in the EAV RP code,
- * just before the first active region line, these two
- * are problematic:
- * 0x90 (Task HorizontalBlank)
- * 0xd0 (Task EvenField HorizontalBlank)
- *
- * We have set the digitzer such that we don't have to worry
- * about these problem codes.
- */
- data[4] = 0xB0F0B0F0;
- /*
- * Start codes for beginning of active line in vertical blank
- * 0xa0 (Task VerticalBlank )
- * 0xe0 (Task EvenField VerticalBlank )
- */
- data[5] = 0xA0E0A0E0;
- }
-
- CX18_DEBUG_INFO("Setup VBI h: %d lines %x bpl %d fr %d %x %x\n",
- data[0], data[1], data[2], data[3], data[4], data[5]);
-
- cx18_api(cx, CX18_CPU_SET_RAW_VBI_PARAM, 6, data);
-}
-
-void cx18_stream_rotate_idx_mdls(struct cx18 *cx)
-{
- struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
- struct cx18_mdl *mdl;
-
- if (!cx18_stream_enabled(s))
- return;
-
- /* Return if the firmware is not running low on MDLs */
- if ((atomic_read(&s->q_free.depth) + atomic_read(&s->q_busy.depth)) >=
- CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN)
- return;
-
- /* Return if there are no MDLs to rotate back to the firmware */
- if (atomic_read(&s->q_full.depth) < 2)
- return;
-
- /*
- * Take the oldest IDX MDL still holding data, and discard its index
- * entries by scheduling the MDL to go back to the firmware
- */
- mdl = cx18_dequeue(s, &s->q_full);
- if (mdl != NULL)
- cx18_enqueue(s, mdl, &s->q_free);
-}
-
-static
-struct cx18_queue *_cx18_stream_put_mdl_fw(struct cx18_stream *s,
- struct cx18_mdl *mdl)
-{
- struct cx18 *cx = s->cx;
- struct cx18_queue *q;
-
- /* Don't give it to the firmware, if we're not running a capture */
- if (s->handle == CX18_INVALID_TASK_HANDLE ||
- test_bit(CX18_F_S_STOPPING, &s->s_flags) ||
- !test_bit(CX18_F_S_STREAMING, &s->s_flags))
- return cx18_enqueue(s, mdl, &s->q_free);
-
- q = cx18_enqueue(s, mdl, &s->q_busy);
- if (q != &s->q_busy)
- return q; /* The firmware has the max MDLs it can handle */
-
- cx18_mdl_sync_for_device(s, mdl);
- cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle,
- (void __iomem *) &cx->scb->cpu_mdl[mdl->id] - cx->enc_mem,
- s->bufs_per_mdl, mdl->id, s->mdl_size);
- return q;
-}
-
-static
-void _cx18_stream_load_fw_queue(struct cx18_stream *s)
-{
- struct cx18_queue *q;
- struct cx18_mdl *mdl;
-
- 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 */
- do {
- mdl = cx18_dequeue(s, &s->q_free);
- if (mdl == NULL)
- break;
- q = _cx18_stream_put_mdl_fw(s, mdl);
- } while (atomic_read(&s->q_busy.depth) < CX18_MAX_FW_MDLS_PER_STREAM
- && q == &s->q_busy);
-}
-
-void cx18_out_work_handler(struct work_struct *work)
-{
- struct cx18_stream *s =
- container_of(work, struct cx18_stream, out_work_order);
-
- _cx18_stream_load_fw_queue(s);
-}
-
-static void cx18_stream_configure_mdls(struct cx18_stream *s)
-{
- cx18_unload_queues(s);
-
- switch (s->type) {
- case CX18_ENC_STREAM_TYPE_YUV:
- /*
- * Height should be a multiple of 32 lines.
- * Set the MDL size to the exact size needed for one frame.
- * Use enough buffers per MDL to cover the MDL size
- */
- if (s->pixelformat == V4L2_PIX_FMT_HM12)
- s->mdl_size = 720 * s->cx->cxhdl.height * 3 / 2;
- else
- s->mdl_size = 720 * s->cx->cxhdl.height * 2;
- s->bufs_per_mdl = s->mdl_size / s->buf_size;
- if (s->mdl_size % s->buf_size)
- s->bufs_per_mdl++;
- break;
- case CX18_ENC_STREAM_TYPE_VBI:
- s->bufs_per_mdl = 1;
- if (cx18_raw_vbi(s->cx)) {
- s->mdl_size = (s->cx->is_60hz ? 12 : 18)
- * 2 * vbi_active_samples;
- } else {
- /*
- * See comment in cx18_vbi_setup() below about the
- * extra lines we capture in sliced VBI mode due to
- * the lines on which EAV RP codes toggle.
- */
- s->mdl_size = s->cx->is_60hz
- ? (21 - 4 + 1) * 2 * vbi_hblank_samples_60Hz
- : (23 - 2 + 1) * 2 * vbi_hblank_samples_50Hz;
- }
- break;
- default:
- s->bufs_per_mdl = 1;
- s->mdl_size = s->buf_size * s->bufs_per_mdl;
- break;
- }
-
- cx18_load_queues(s);
-}
-
-int cx18_start_v4l2_encode_stream(struct cx18_stream *s)
-{
- u32 data[MAX_MB_ARGUMENTS];
- struct cx18 *cx = s->cx;
- int captype = 0;
- struct cx18_stream *s_idx;
-
- if (!cx18_stream_enabled(s))
- return -EINVAL;
-
- CX18_DEBUG_INFO("Start encoder stream %s\n", s->name);
-
- switch (s->type) {
- case CX18_ENC_STREAM_TYPE_MPG:
- captype = CAPTURE_CHANNEL_TYPE_MPEG;
- cx->mpg_data_received = cx->vbi_data_inserted = 0;
- cx->dualwatch_jiffies = jiffies;
- cx->dualwatch_stereo_mode = v4l2_ctrl_g_ctrl(cx->cxhdl.audio_mode);
- cx->search_pack_header = 0;
- break;
-
- case CX18_ENC_STREAM_TYPE_IDX:
- captype = CAPTURE_CHANNEL_TYPE_INDEX;
- break;
- case CX18_ENC_STREAM_TYPE_TS:
- captype = CAPTURE_CHANNEL_TYPE_TS;
- break;
- case CX18_ENC_STREAM_TYPE_YUV:
- captype = CAPTURE_CHANNEL_TYPE_YUV;
- break;
- case CX18_ENC_STREAM_TYPE_PCM:
- captype = CAPTURE_CHANNEL_TYPE_PCM;
- break;
- case CX18_ENC_STREAM_TYPE_VBI:
-#ifdef CX18_ENCODER_PARSES_SLICED
- captype = cx18_raw_vbi(cx) ?
- CAPTURE_CHANNEL_TYPE_VBI : CAPTURE_CHANNEL_TYPE_SLICED_VBI;
-#else
- /*
- * Currently we set things up so that Sliced VBI from the
- * digitizer is handled as Raw VBI by the encoder
- */
- captype = CAPTURE_CHANNEL_TYPE_VBI;
-#endif
- cx->vbi.frame = 0;
- cx->vbi.inserted_frame = 0;
- memset(cx->vbi.sliced_mpeg_size,
- 0, sizeof(cx->vbi.sliced_mpeg_size));
- break;
- default:
- return -EINVAL;
- }
-
- /* Clear Streamoff flags in case left from last capture */
- clear_bit(CX18_F_S_STREAMOFF, &s->s_flags);
-
- cx18_vapi_result(cx, data, CX18_CREATE_TASK, 1, CPU_CMD_MASK_CAPTURE);
- s->handle = data[0];
- cx18_vapi(cx, CX18_CPU_SET_CHANNEL_TYPE, 2, s->handle, captype);
-
- /*
- * For everything but CAPTURE_CHANNEL_TYPE_TS, play it safe and
- * set up all the parameters, as it is not obvious which parameters the
- * firmware shares across capture channel types and which it does not.
- *
- * Some of the cx18_vapi() calls below apply to only certain capture
- * channel types. We're hoping there's no harm in calling most of them
- * anyway, as long as the values are all consistent. Setting some
- * shared parameters will have no effect once an analog capture channel
- * has started streaming.
- */
- if (captype != CAPTURE_CHANNEL_TYPE_TS) {
- cx18_vapi(cx, CX18_CPU_SET_VER_CROP_LINE, 2, s->handle, 0);
- cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 3, 1);
- cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 8, 0);
- cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 4, 1);
-
- /*
- * Audio related reset according to
- * Documentation/video4linux/cx2341x/fw-encoder-api.txt
- */
- if (atomic_read(&cx->ana_capturing) == 0)
- cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 2,
- s->handle, 12);
-
- /*
- * Number of lines for Field 1 & Field 2 according to
- * Documentation/video4linux/cx2341x/fw-encoder-api.txt
- * Field 1 is 312 for 625 line systems in BT.656
- * Field 2 is 313 for 625 line systems in BT.656
- */
- cx18_vapi(cx, CX18_CPU_SET_CAPTURE_LINE_NO, 3,
- s->handle, 312, 313);
-
- if (cx->v4l2_cap & V4L2_CAP_VBI_CAPTURE)
- cx18_vbi_setup(s);
-
- /*
- * Select to receive I, P, and B frame index entries, if the
- * index stream is enabled. Otherwise disable index entry
- * generation.
- */
- s_idx = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
- cx18_vapi_result(cx, data, CX18_CPU_SET_INDEXTABLE, 2,
- s->handle, cx18_stream_enabled(s_idx) ? 7 : 0);
-
- /* Call out to the common CX2341x API setup for user controls */
- cx->cxhdl.priv = s;
- cx2341x_handler_setup(&cx->cxhdl);
-
- /*
- * When starting a capture and we're set for radio,
- * ensure the video is muted, despite the user control.
- */
- if (!cx->cxhdl.video_mute &&
- test_bit(CX18_F_I_RADIO_USER, &cx->i_flags))
- cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2, s->handle,
- (v4l2_ctrl_g_ctrl(cx->cxhdl.video_mute_yuv) << 8) | 1);
-
- /* Enable the Video Format Converter for UYVY 4:2:2 support,
- * rather than the default HM12 Macroblovk 4:2:0 support.
- */
- if (captype == CAPTURE_CHANNEL_TYPE_YUV) {
- if (s->pixelformat == V4L2_PIX_FMT_UYVY)
- cx18_vapi(cx, CX18_CPU_SET_VFC_PARAM, 2,
- s->handle, 1);
- else
- /* If in doubt, default to HM12 */
- cx18_vapi(cx, CX18_CPU_SET_VFC_PARAM, 2,
- s->handle, 0);
- }
- }
-
- if (atomic_read(&cx->tot_capturing) == 0) {
- cx2341x_handler_set_busy(&cx->cxhdl, 1);
- clear_bit(CX18_F_I_EOS, &cx->i_flags);
- cx18_write_reg(cx, 7, CX18_DSP0_INTERRUPT_MASK);
- }
-
- cx18_vapi(cx, CX18_CPU_DE_SET_MDL_ACK, 3, s->handle,
- (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][0] - cx->enc_mem,
- (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][1] - cx->enc_mem);
-
- /* Init all the cpu_mdls for this stream */
- cx18_stream_configure_mdls(s);
- _cx18_stream_load_fw_queue(s);
-
- /* begin_capture */
- if (cx18_vapi(cx, CX18_CPU_CAPTURE_START, 1, s->handle)) {
- CX18_DEBUG_WARN("Error starting capture!\n");
- /* Ensure we're really not capturing before releasing MDLs */
- set_bit(CX18_F_S_STOPPING, &s->s_flags);
- if (s->type == CX18_ENC_STREAM_TYPE_MPG)
- cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 2, s->handle, 1);
- else
- cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 1, s->handle);
- clear_bit(CX18_F_S_STREAMING, &s->s_flags);
- /* FIXME - CX18_F_S_STREAMOFF as well? */
- cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle);
- cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle);
- s->handle = CX18_INVALID_TASK_HANDLE;
- clear_bit(CX18_F_S_STOPPING, &s->s_flags);
- if (atomic_read(&cx->tot_capturing) == 0) {
- set_bit(CX18_F_I_EOS, &cx->i_flags);
- cx18_write_reg(cx, 5, CX18_DSP0_INTERRUPT_MASK);
- }
- return -EINVAL;
- }
-
- /* you're live! sit back and await interrupts :) */
- if (captype != CAPTURE_CHANNEL_TYPE_TS)
- atomic_inc(&cx->ana_capturing);
- atomic_inc(&cx->tot_capturing);
- return 0;
-}
-EXPORT_SYMBOL(cx18_start_v4l2_encode_stream);
-
-void cx18_stop_all_captures(struct cx18 *cx)
-{
- int i;
-
- for (i = CX18_MAX_STREAMS - 1; i >= 0; i--) {
- struct cx18_stream *s = &cx->streams[i];
-
- if (!cx18_stream_enabled(s))
- continue;
- if (test_bit(CX18_F_S_STREAMING, &s->s_flags))
- cx18_stop_v4l2_encode_stream(s, 0);
- }
-}
-
-int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end)
-{
- struct cx18 *cx = s->cx;
-
- if (!cx18_stream_enabled(s))
- return -EINVAL;
-
- /* This function assumes that you are allowed to stop the capture
- and that we are actually capturing */
-
- CX18_DEBUG_INFO("Stop Capture\n");
-
- if (atomic_read(&cx->tot_capturing) == 0)
- return 0;
-
- set_bit(CX18_F_S_STOPPING, &s->s_flags);
- if (s->type == CX18_ENC_STREAM_TYPE_MPG)
- cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 2, s->handle, !gop_end);
- else
- cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 1, s->handle);
-
- if (s->type == CX18_ENC_STREAM_TYPE_MPG && gop_end) {
- CX18_INFO("ignoring gop_end: not (yet?) supported by the firmware\n");
- }
-
- if (s->type != CX18_ENC_STREAM_TYPE_TS)
- atomic_dec(&cx->ana_capturing);
- atomic_dec(&cx->tot_capturing);
-
- /* Clear capture and no-read bits */
- clear_bit(CX18_F_S_STREAMING, &s->s_flags);
-
- /* Tell the CX23418 it can't use our buffers anymore */
- cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle);
-
- cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle);
- s->handle = CX18_INVALID_TASK_HANDLE;
- clear_bit(CX18_F_S_STOPPING, &s->s_flags);
-
- if (atomic_read(&cx->tot_capturing) > 0)
- return 0;
-
- cx2341x_handler_set_busy(&cx->cxhdl, 0);
- cx18_write_reg(cx, 5, CX18_DSP0_INTERRUPT_MASK);
- wake_up(&s->waitq);
-
- return 0;
-}
-EXPORT_SYMBOL(cx18_stop_v4l2_encode_stream);
-
-u32 cx18_find_handle(struct cx18 *cx)
-{
- int i;
-
- /* find first available handle to be used for global settings */
- for (i = 0; i < CX18_MAX_STREAMS; i++) {
- struct cx18_stream *s = &cx->streams[i];
-
- if (s->video_dev && (s->handle != CX18_INVALID_TASK_HANDLE))
- return s->handle;
- }
- return CX18_INVALID_TASK_HANDLE;
-}
-
-struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle)
-{
- int i;
- struct cx18_stream *s;
-
- if (handle == CX18_INVALID_TASK_HANDLE)
- return NULL;
-
- for (i = 0; i < CX18_MAX_STREAMS; i++) {
- s = &cx->streams[i];
- if (s->handle != handle)
- continue;
- if (cx18_stream_enabled(s))
- return s;
- }
- return NULL;
-}