#include "go7007-priv.h"
#include "wis-i2c.h"
+/* Temporary defines until accepted in v4l-dvb */
+#ifndef V4L2_MPEG_STREAM_TYPE_MPEG_ELEM
+#define V4L2_MPEG_STREAM_TYPE_MPEG_ELEM 6 /* MPEG elementary stream */
+#endif
+#ifndef V4L2_MPEG_VIDEO_ENCODING_MPEG_4
+#define V4L2_MPEG_VIDEO_ENCODING_MPEG_4 3
+#endif
+
static void deactivate_buffer(struct go7007_buffer *gobuf)
{
int i;
return 0;
}
+static int mpeg_queryctrl(u32 id, struct v4l2_queryctrl *ctrl)
+{
+ static const u32 user_ctrls[] = {
+ V4L2_CID_USER_CLASS,
+ 0
+ };
+ static const u32 mpeg_ctrls[] = {
+ V4L2_CID_MPEG_CLASS,
+ V4L2_CID_MPEG_STREAM_TYPE,
+ V4L2_CID_MPEG_VIDEO_ENCODING,
+ V4L2_CID_MPEG_VIDEO_ASPECT,
+ V4L2_CID_MPEG_VIDEO_GOP_SIZE,
+ V4L2_CID_MPEG_VIDEO_GOP_CLOSURE,
+ V4L2_CID_MPEG_VIDEO_BITRATE,
+ 0
+ };
+ static const u32 *ctrl_classes[] = {
+ user_ctrls,
+ mpeg_ctrls,
+ NULL
+ };
+
+ /* The ctrl may already contain the queried i2c controls,
+ * query the mpeg controls if the existing ctrl id is
+ * greater than the next mpeg ctrl id.
+ */
+ id = v4l2_ctrl_next(ctrl_classes, id);
+ if (id >= ctrl->id && ctrl->name[0])
+ return 0;
+
+ memset(ctrl, 0, sizeof(*ctrl));
+ ctrl->id = id;
+
+ switch (ctrl->id) {
+ case V4L2_CID_USER_CLASS:
+ case V4L2_CID_MPEG_CLASS:
+ return v4l2_ctrl_query_fill_std(ctrl);
+ case V4L2_CID_MPEG_STREAM_TYPE:
+ return v4l2_ctrl_query_fill(ctrl,
+ V4L2_MPEG_STREAM_TYPE_MPEG2_DVD,
+ V4L2_MPEG_STREAM_TYPE_MPEG_ELEM, 1,
+ V4L2_MPEG_STREAM_TYPE_MPEG_ELEM);
+ case V4L2_CID_MPEG_VIDEO_ENCODING:
+ return v4l2_ctrl_query_fill(ctrl,
+ V4L2_MPEG_VIDEO_ENCODING_MPEG_1,
+ V4L2_MPEG_VIDEO_ENCODING_MPEG_4, 1,
+ V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
+ case V4L2_CID_MPEG_VIDEO_ASPECT:
+ return v4l2_ctrl_query_fill(ctrl,
+ V4L2_MPEG_VIDEO_ASPECT_1x1,
+ V4L2_MPEG_VIDEO_ASPECT_16x9, 1,
+ V4L2_MPEG_VIDEO_ASPECT_1x1);
+ case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+ case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+ return v4l2_ctrl_query_fill_std(ctrl);
+ case V4L2_CID_MPEG_VIDEO_BITRATE:
+ return v4l2_ctrl_query_fill(ctrl,
+ 64000,
+ 10000000, 1,
+ 9800000);
+ default:
+ break;
+ }
+ return -EINVAL;
+}
+
+static int mpeg_s_control(struct v4l2_control *ctrl, struct go7007 *go)
+{
+ /* pretty sure we can't change any of these while streaming */
+ if (go->streaming)
+ return -EBUSY;
+
+ switch (ctrl->id) {
+ case V4L2_CID_MPEG_STREAM_TYPE:
+ switch (ctrl->value) {
+ case V4L2_MPEG_STREAM_TYPE_MPEG2_DVD:
+ go->format = GO7007_FORMAT_MPEG2;
+ go->bitrate = 9800000;
+ go->gop_size = 15;
+ go->pali = 0x48;
+ go->closed_gop = 1;
+ go->repeat_seqhead = 0;
+ go->seq_header_enable = 1;
+ go->gop_header_enable = 1;
+ go->dvd_mode = 1;
+ break;
+ case V4L2_MPEG_STREAM_TYPE_MPEG_ELEM:
+ /* todo: */
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case V4L2_CID_MPEG_VIDEO_ENCODING:
+ switch (ctrl->value) {
+ case V4L2_MPEG_VIDEO_ENCODING_MPEG_1:
+ go->format = GO7007_FORMAT_MPEG1;
+ go->pali = 0;
+ break;
+ case V4L2_MPEG_VIDEO_ENCODING_MPEG_2:
+ go->format = GO7007_FORMAT_MPEG2;
+ /*if (mpeg->pali >> 24 == 2)
+ go->pali = mpeg->pali & 0xff;
+ else*/
+ go->pali = 0x48;
+ break;
+ case V4L2_MPEG_VIDEO_ENCODING_MPEG_4:
+ go->format = GO7007_FORMAT_MPEG4;
+ /*if (mpeg->pali >> 24 == 4)
+ go->pali = mpeg->pali & 0xff;
+ else*/
+ go->pali = 0xf5;
+ break;
+ default:
+ return -EINVAL;
+ }
+ go->gop_header_enable =
+ /*mpeg->flags & GO7007_MPEG_OMIT_GOP_HEADER
+ ? 0 :*/ 1;
+ /*if (mpeg->flags & GO7007_MPEG_REPEAT_SEQHEADER)
+ go->repeat_seqhead = 1;
+ else*/
+ go->repeat_seqhead = 0;
+ go->dvd_mode = 0;
+ break;
+ case V4L2_CID_MPEG_VIDEO_ASPECT:
+ if (go->format == GO7007_FORMAT_MJPEG)
+ return -EINVAL;
+ switch (ctrl->value) {
+ case V4L2_MPEG_VIDEO_ASPECT_1x1:
+ go->aspect_ratio = GO7007_RATIO_1_1;
+ break;
+ case V4L2_MPEG_VIDEO_ASPECT_4x3:
+ go->aspect_ratio = GO7007_RATIO_4_3;
+ break;
+ case V4L2_MPEG_VIDEO_ASPECT_16x9:
+ go->aspect_ratio = GO7007_RATIO_16_9;
+ break;
+ case V4L2_MPEG_VIDEO_ASPECT_221x100:
+ default:
+ return -EINVAL;
+ }
+ break;
+ case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+ go->gop_size = ctrl->value;
+ break;
+ case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+ if (ctrl->value != 0 && ctrl->value != 1)
+ return -EINVAL;
+ go->closed_gop = ctrl->value;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE:
+ /* Upper bound is kind of arbitrary here */
+ if (ctrl->value < 64000 || ctrl->value > 10000000)
+ return -EINVAL;
+ go->bitrate = ctrl->value;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int mpeg_g_control(struct v4l2_control *ctrl, struct go7007 *go)
+{
+ switch (ctrl->id) {
+ case V4L2_CID_MPEG_STREAM_TYPE:
+ if (go->dvd_mode)
+ ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_DVD;
+ else
+ ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG_ELEM;
+ break;
+ case V4L2_CID_MPEG_VIDEO_ENCODING:
+ switch (go->format) {
+ case GO7007_FORMAT_MPEG1:
+ ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
+ break;
+ case GO7007_FORMAT_MPEG2:
+ ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_2;
+ break;
+ case GO7007_FORMAT_MPEG4:
+ ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_4;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case V4L2_CID_MPEG_VIDEO_ASPECT:
+ switch (go->aspect_ratio) {
+ case GO7007_RATIO_1_1:
+ ctrl->value = V4L2_MPEG_VIDEO_ASPECT_1x1;
+ break;
+ case GO7007_RATIO_4_3:
+ ctrl->value = V4L2_MPEG_VIDEO_ASPECT_4x3;
+ break;
+ case GO7007_RATIO_16_9:
+ ctrl->value = V4L2_MPEG_VIDEO_ASPECT_16x9;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+ ctrl->value = go->gop_size;
+ break;
+ case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+ ctrl->value = go->closed_gop;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE:
+ ctrl->value = go->bitrate;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
static long go7007_do_ioctl(struct file *file, unsigned int cmd, void *arg)
{
struct go7007_file *gofh = file->private_data;
strncpy(cap->card, go->name, sizeof(cap->card));
cap->version = KERNEL_VERSION(0, 9, 8);
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_STREAMING; /* | V4L2_CAP_AUDIO; */
+ V4L2_CAP_STREAMING | V4L2_CAP_AUDIO;
if (go->board_info->flags & GO7007_BOARD_HAS_TUNER)
cap->capabilities |= V4L2_CAP_TUNER;
return 0;
return -EBUSY;
return set_capture_size(go, fmt, 0);
}
+ case VIDIOC_ENUMAUDIO:
+ case VIDIOC_G_AUDIO:
+ case VIDIOC_S_AUDIO:
+ {
+ struct v4l2_audio *audio = arg;
+
+ if (!go->i2c_adapter_online)
+ return -EIO;
+ i2c_clients_command(&go->i2c_adapter, cmd, arg);
+ if (cmd == VIDIOC_ENUMAUDIO && !audio->name[0])
+ return -EINVAL;
+ return 0;
+ }
case VIDIOC_G_FBUF:
case VIDIOC_S_FBUF:
return -EINVAL;
struct v4l2_queryctrl *ctrl = arg;
u32 id;
- if (!go->i2c_adapter_online)
- return -EIO;
id = ctrl->id;
memset(ctrl, 0, sizeof(*ctrl));
ctrl->id = id;
- i2c_clients_command(&go->i2c_adapter, VIDIOC_QUERYCTRL, arg);
+ if (go->i2c_adapter_online)
+ i2c_clients_command(&go->i2c_adapter,
+ VIDIOC_QUERYCTRL, arg);
+ else if (go->hpi_ops && go->hpi_ops->send_command)
+ go->hpi_ops->send_command(go, cmd, arg);
+ if (id & V4L2_CTRL_FLAG_NEXT_CTRL || ctrl->name[0] == 0)
+ return mpeg_queryctrl(id, ctrl);
return ctrl->name[0] == 0 ? -EINVAL : 0;
}
case VIDIOC_G_CTRL:
struct v4l2_control *ctrl = arg;
struct v4l2_queryctrl query;
- if (!go->i2c_adapter_online)
- return -EIO;
memset(&query, 0, sizeof(query));
query.id = ctrl->id;
- i2c_clients_command(&go->i2c_adapter, VIDIOC_QUERYCTRL, &query);
+ if (go->i2c_adapter_online)
+ i2c_clients_command(&go->i2c_adapter,
+ VIDIOC_QUERYCTRL, &query);
+ else if (go->hpi_ops && go->hpi_ops->send_command)
+ if (0 == go->hpi_ops->send_command(go, cmd, arg))
+ return 0;
if (query.name[0] == 0)
- return -EINVAL;
+ return mpeg_g_control(ctrl, go);
i2c_clients_command(&go->i2c_adapter, VIDIOC_G_CTRL, arg);
return 0;
}
struct v4l2_control *ctrl = arg;
struct v4l2_queryctrl query;
- if (!go->i2c_adapter_online)
- return -EIO;
memset(&query, 0, sizeof(query));
query.id = ctrl->id;
- i2c_clients_command(&go->i2c_adapter, VIDIOC_QUERYCTRL, &query);
+ if (go->i2c_adapter_online)
+ i2c_clients_command(&go->i2c_adapter,
+ VIDIOC_QUERYCTRL, &query);
+ else if (go->hpi_ops && go->hpi_ops->send_command)
+ if (0 == go->hpi_ops->send_command(go, cmd, arg))
+ return 0;
if (query.name[0] == 0)
- return -EINVAL;
+ return mpeg_s_control(ctrl, go);
i2c_clients_command(&go->i2c_adapter, VIDIOC_S_CTRL, arg);
return 0;
}
*std = V4L2_STD_NTSC;
else
*std = V4L2_STD_PAL | V4L2_STD_SECAM;
+ } else if (go->hpi_ops && go->hpi_ops->send_command) {
+ go->hpi_ops->send_command(go, cmd, arg);
} else
*std = 0;
return 0;
if (go->i2c_adapter_online)
i2c_clients_command(&go->i2c_adapter,
VIDIOC_S_STD, std);
+ if (go->hpi_ops && go->hpi_ops->send_command)
+ go->hpi_ops->send_command(go, cmd, arg);
+
set_capture_size(go, NULL, 0);
return 0;
}
return clip_to_modet_map(go, region->region, region->clips);
}
default:
- printk(KERN_DEBUG "go7007: unsupported ioctl %d\n", cmd);
+ printk(KERN_INFO "go7007-v4l2: unsupported ioctl %d\n", cmd);
return -ENOIOCTLCMD;
}
return 0;
}
video_set_drvdata(go->video_dev, go);
++go->ref_count;
+ printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
+ go->video_dev->name, go->video_dev->num);
return 0;
}
--- /dev/null
+This is a driver for the WIS GO7007SB multi-format video encoder.
+
+Pete Eberlein <pete@sensoray.com>
+
+The driver was orignally released under the GPL and is currently hosted at:
+http://nikosapi.org/wiki/index.php/WIS_Go7007_Linux_driver
+The go7007 firmware can be acquired from the package on the site above.
+
+I've modified the driver to support the following Video4Linux2 MPEG
+controls, with acceptable values:
+
+V4L2_CID_MPEG_STREAM_TYPE V4L2_MPEG_STREAM_TYPE_MPEG2_DVD
+ V4L2_MPEG_STREAM_TYPE_MPEG_ELEM
+V4L2_CID_MPEG_VIDEO_ENCODING V4L2_MPEG_VIDEO_ENCODING_MPEG_1
+ V4L2_MPEG_VIDEO_ENCODING_MPEG_2
+ V4L2_MPEG_VIDEO_ENCODING_MPEG_4
+V4L2_CID_MPEG_VIDEO_ASPECT V4L2_MPEG_VIDEO_ASPECT_1x1
+ V4L2_MPEG_VIDEO_ASPECT_4x3
+ V4L2_MPEG_VIDEO_ASPECT_16x9
+V4L2_CID_MPEG_VIDEO_GOP_SIZE integer
+V4L2_CID_MPEG_VIDEO_BITRATE 64000 .. 10000000
+
+These should be used instead of the non-standard GO7007 ioctls described
+below.
+
+
+The README files from the orignal package appear below:
+
+---------------------------------------------------------------------------
+ WIS GO7007SB Public Linux Driver
+---------------------------------------------------------------------------
+
+
+*** Please see the file RELEASE-NOTES for important last-minute updates ***
+
+
+ 0. OVERVIEW AND LICENSING/DISCLAIMER
+
+
+This driver kit contains Linux drivers for the WIS GO7007SB multi-format
+video encoder. Only kernel version 2.6.x is supported. The video stream
+is available through the Video4Linux2 API and the audio stream is available
+through the ALSA API (or the OSS emulation layer of the ALSA system).
+
+The files in kernel/ and hotplug/ are licensed under the GNU General Public
+License Version 2 from the Free Software Foundation. A copy of the license
+is included in the file COPYING.
+
+The example applications in apps/ and C header files in include/ are
+licensed under a permissive license included in the source files which
+allows copying, modification and redistribution for any purpose without
+attribution.
+
+The firmware files included in the firmware/ directory may be freely
+redistributed only in conjunction with this document; but modification,
+tampering and reverse engineering are prohibited.
+
+MICRONAS USA, INC., MAKES NO WARRANTIES TO ANY PERSON OR ENTITY WITH
+RESPECT TO THE SOFTWARE OR ANY DERIVATIVES THEREOF OR ANY SERVICES OR
+LICENSES AND DISCLAIMS ALL IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION
+WARRANTIES OF MERCHANTABILITY, SUPPORT, AND FITNESS FOR A PARTICULAR
+PURPOSE AND NON-INFRINGEMENT.
+
+
+ 1. SYSTEM REQUIREMENTS
+
+
+This driver requires Linux kernel 2.6. Kernel 2.4 is not supported. Using
+kernel 2.6.10 or later is recommended, as earlier kernels are known to have
+unstable USB 2.0 support.
+
+A fully built kernel source tree must be available. Typically this will be
+linked from "/lib/modules/<KERNEL VERSION>/build" for convenience. If this
+link does not exist, an extra parameter will need to be passed to the
+`make` command.
+
+All vendor-built kernels should already be configured properly. However,
+for custom-built kernels, the following options need to be enabled in the
+kernel as built-in or modules:
+
+ CONFIG_HOTPLUG - Support for hot-pluggable devices
+ CONFIG_MODULES - Enable loadable module support
+ CONFIG_KMOD - Automatic kernel module loading
+ CONFIG_FW_LOADER - Hotplug firmware loading support
+ CONFIG_I2C - I2C support
+ CONFIG_VIDEO_DEV - Video For Linux
+ CONFIG_SOUND - Sound card support
+ CONFIG_SND - Advanced Linux Sound Architecture
+ CONFIG_USB - Support for Host-side USB
+ CONFIG_USB_DEVICEFS - USB device filesystem
+ CONFIG_USB_EHCI_HCD - EHCI HCD (USB 2.0) support
+
+Additionally, to use the example application, the following options need to
+be enabled in the ALSA section:
+
+ CONFIG_SND_MIXER_OSS - OSS Mixer API
+ CONFIG_SND_PCM_OSS - OSS PCM (digital audio) API
+
+The hotplug scripts, along with the fxload utility, must also be installed.
+These scripts can be obtained from <http://linux-hotplug.sourceforge.net/>.
+Hotplugging is used for loading firmware into the Cypruss EZ-USB chip using
+fxload and for loading firmware into the driver using the firmware agent.
+
+
+ 2. COMPILING AND INSTALLING THE DRIVER
+
+
+Most users should be able to compile the driver by simply running:
+
+ $ make
+
+in the top-level directory of the driver kit. First the kernel modules
+will be built, followed by the example applications.
+
+If the build system is unable to locate the kernel source tree for the
+currently-running kernel, or if the module should be built for a kernel
+other than the currently-running kernel, an additional parameter will need
+to be passed to make to specify the appropriate kernel source directory:
+
+ $ make KERNELSRC=/usr/src/linux-2.6.10-custom3
+
+Once the compile completes, the driver and firmware files should be
+installed by running:
+
+ $ make install
+
+The kernel modules will be placed in "/lib/modules/<KERNEL VERSION>/extra"
+and the firmware files will be placed in the appropriate hotplug firmware
+directory, usually /lib/firmware. In addition, USB maps and scripts will
+be placed in /etc/hotplug/usb to enable fxload to initialize the EZ-USB
+control chip when the device is connected.
+
+
+ 3. PAL/SECAM TUNER CONFIGURATION (TV402U-EU only)
+
+
+The PAL model of the Plextor ConvertX TV402U may require additional
+configuration to correctly select the appropriate TV frequency band and
+audio subchannel.
+
+Users with a device other than the Plextor ConvertX TV402U-EU should skip
+this section.
+
+The wide variety of PAL TV systems used in Europe requires that additional
+information about the local TV standards be passed to the driver in order
+to properly tune TV channels. The two necessary parameters are (a) the PAL
+TV band, and (b) the audio subchannel format in use.
+
+In many cases, the appropriate TV band selection is passed to the driver
+from applications. However, in some cases, the application only specifies
+that the driver should use PAL but not the specific information about the
+appropriate TV band. To work around this issue, the correct TV band may be
+specified in the "force_band" parameter to the wis-sony-tuner module:
+
+ TV band force_band
+ ------- ----------
+ PAL B/G B
+ PAL I I
+ PAL D/K D
+ SECAM L L
+
+If the "force_band" parameter is specified, the driver will ignore any TV
+band specified by applications and will always use the band provided in the
+module parameter.
+
+The other parameter that can be specified is the audio subchannel format.
+There are several stereo audio carrier systems in use, including NICAM and
+three varieties of A2. To receive audio broadcast on one of these stereo
+carriers, the "force_mpx_mode" parameter must be specified to the
+wis-sony-tuner module.
+
+ TV band Audio subcarrier force_mpx_mode
+ ------- ---------------- --------------
+ PAL B/G Mono (default) 1
+ PAL B/G A2 2
+ PAL B/G NICAM 3
+ PAL I Mono (default) 4
+ PAL I NICAM 5
+ PAL D/K Mono (default) 6
+ PAL D/K A2 (1) 7
+ PAL D/K A2 (2) 8
+ PAL D/K A2 (3) 9
+ PAL D/K NICAM 10
+ SECAM L Mono (default) 11
+ SECAM L NICAM 12
+
+If the "force_mpx_mode" parameter is not specified, the correct mono-only
+mode will be chosen based on the TV band. However, the tuner will not
+receive stereo audio or bilingual broadcasts correctly.
+
+To pass the "force_band" or "force_mpx_mode" parameters to the
+wis-sony-tuner module, the following line must be added to the modprobe
+configuration file, which varies from one Linux distribution to another.
+
+ options wis-sony-tuner force_band=B force_mpx_mode=2
+
+The above example would force the tuner to the PAL B/G TV band and receive
+stereo audio broadcasts on the A2 carrier.
+
+To verify that the configuration has been placed in the correct location,
+execute:
+
+ $ modprobe -c | grep wis-sony-tuner
+
+If the configuration line appears, then modprobe will pass the parameters
+correctly the next time the wis-sony-tuner module is loaded into the
+kernel.
+
+
+ 4. TESTING THE DRIVER
+
+
+Because few Linux applications are able to correctly capture from
+Video4Linux2 devices with only compressed formats supported, the new driver
+should be tested with the "gorecord" application in the apps/ directory.
+
+First connect a video source to the device, such as a DVD player or VCR.
+This will be captured to a file for testing the driver. If an input source
+is unavailable, a test file can still be captured, but the video will be
+black and the audio will be silent.
+
+This application will auto-detect the V4L2 and ALSA/OSS device names of the
+hardware and will record video and audio to an AVI file for a specified
+number of seconds. For example:
+
+ $ apps/gorecord -duration 60 capture.avi
+
+If this application does not successfully record an AVI file, the error
+messages produced by gorecord and recorded in the system log (usually in
+/var/log/messages) should provide information to help resolve the problem.
+
+Supplying no parameters to gorecord will cause it to probe the available
+devices and exit. Use the -help flag for usage information.
+
+
+ 5. USING THE DRIVER
+
+
+The V4L2 device implemented by the driver provides a standard compressed
+format API, within the following criteria:
+
+ * Applications that only support the original Video4Linux1 API will not
+ be able to communicate with this driver at all.
+
+ * No raw video modes are supported, so applications like xawtv that
+ expect only uncompressed video will not function.
+
+ * Supported compression formats are: Motion-JPEG, MPEG1, MPEG2 and MPEG4.
+
+ * MPEG video formats are delivered as Video Elementary Streams only.
+ Program Stream (PS), Transport Stream (TS) and Packetized Elementary
+ Stream (PES) formats are not supported.
+
+ * Video parameters such as format and input port may not be changed while
+ the encoder is active.
+
+ * The audio capture device only functions when the video encoder is
+ actively capturing video. Attempts to read from the audio device when
+ the encoder is inactive will result in an I/O error.
+
+ * The native format of the audio device is 48Khz 2-channel 16-bit
+ little-endian PCM, delivered through the ALSA system. No audio
+ compression is implemented in the hardware. ALSA may convert to other
+ uncompressed formats on the fly.
+
+The include/ directory contains a C header file describing non-standard
+features of the GO7007SB encoder, which are described below:
+
+
+ GO7007IOC_S_COMP_PARAMS, GO7007IOC_G_COMP_PARAMS
+
+ These ioctls are used to negotiate general compression parameters.
+
+ To query the current parameters, call the GO7007IOC_G_COMP_PARAMS ioctl
+ with a pointer to a struct go7007_comp_params. If the driver is not
+ set to MPEG format, the EINVAL error code will be returned.
+
+ To change the current parameters, initialize all fields of a struct
+ go7007_comp_params and call the GO7007_IOC_S_COMP_PARAMS ioctl with a
+ pointer to this structure. The driver will return the current
+ parameters with any necessary changes to conform to the limitations of
+ the hardware or current compression mode. Any or all fields can be set
+ to zero to request a reasonable default value. If the driver is not
+ set to MPEG format, the EINVAL error code will be returned. When I/O
+ is in progress, the EBUSY error code will be returned.
+
+ Fields in struct go7007_comp_params:
+
+ __u32 The maximum number of frames in each
+ gop_size Group Of Pictures; i.e. the maximum
+ number of frames minus one between
+ each key frame.
+
+ __u32 The maximum number of sequential
+ max_b_frames bidirectionally-predicted frames.
+ (B-frames are not yet supported.)
+
+ enum go7007_aspect_ratio The aspect ratio to be encoded in the
+ aspect_ratio meta-data of the compressed format.
+
+ Choices are:
+ GO7007_ASPECT_RATIO_1_1
+ GO7007_ASPECT_RATIO_4_3_NTSC
+ GO7007_ASPECT_RATIO_4_3_PAL
+ GO7007_ASPECT_RATIO_16_9_NTSC
+ GO7007_ASPECT_RATIO_16_9_PAL
+
+ __u32 Bit-wise OR of control flags (below)
+ flags
+
+ Flags in struct go7007_comp_params:
+
+ GO7007_COMP_CLOSED_GOP Only produce self-contained GOPs, used
+ to produce streams appropriate for
+ random seeking.
+
+ GO7007_COMP_OMIT_SEQ_HEADER Omit the stream sequence header.
+
+
+ GO7007IOC_S_MPEG_PARAMS, GO7007IOC_G_MPEG_PARAMS
+
+ These ioctls are used to negotiate MPEG-specific stream parameters when
+ the pixelformat has been set to V4L2_PIX_FMT_MPEG.
+
+ To query the current parameters, call the GO7007IOC_G_MPEG_PARAMS ioctl
+ with a pointer to a struct go7007_mpeg_params. If the driver is not
+ set to MPEG format, the EINVAL error code will be returned.
+
+ To change the current parameters, initialize all fields of a struct
+ go7007_mpeg_params and call the GO7007_IOC_S_MPEG_PARAMS ioctl with a
+ pointer to this structure. The driver will return the current
+ parameters with any necessary changes to conform to the limitations of
+ the hardware or selected MPEG mode. Any or all fields can be set to
+ zero to request a reasonable default value. If the driver is not set
+ to MPEG format, the EINVAL error code will be returned. When I/O is in
+ progress, the EBUSY error code will be returned.
+
+ Fields in struct go7007_mpeg_params:
+
+ enum go7007_mpeg_video_standard
+ mpeg_video_standard The MPEG video standard in which to
+ compress the video.
+
+ Choices are:
+ GO7007_MPEG_VIDEO_MPEG1
+ GO7007_MPEG_VIDEO_MPEG2
+ GO7007_MPEG_VIDEO_MPEG4
+
+ __u32 Bit-wise OR of control flags (below)
+ flags
+
+ __u32 The profile and level indication to be
+ pali stored in the sequence header. This
+ is only used as an indicator to the
+ decoder, and does not affect the MPEG
+ features used in the video stream.
+ Not valid for MPEG1.
+
+ Choices for MPEG2 are:
+ GO7007_MPEG2_PROFILE_MAIN_MAIN
+
+ Choices for MPEG4 are:
+ GO7007_MPEG4_PROFILE_S_L0
+ GO7007_MPEG4_PROFILE_S_L1
+ GO7007_MPEG4_PROFILE_S_L2
+ GO7007_MPEG4_PROFILE_S_L3
+ GO7007_MPEG4_PROFILE_ARTS_L1
+ GO7007_MPEG4_PROFILE_ARTS_L2
+ GO7007_MPEG4_PROFILE_ARTS_L3
+ GO7007_MPEG4_PROFILE_ARTS_L4
+ GO7007_MPEG4_PROFILE_AS_L0
+ GO7007_MPEG4_PROFILE_AS_L1
+ GO7007_MPEG4_PROFILE_AS_L2
+ GO7007_MPEG4_PROFILE_AS_L3
+ GO7007_MPEG4_PROFILE_AS_L4
+ GO7007_MPEG4_PROFILE_AS_L5
+
+ Flags in struct go7007_mpeg_params:
+
+ GO7007_MPEG_FORCE_DVD_MODE Force all compression parameters and
+ bitrate control settings to comply
+ with DVD MPEG2 stream requirements.
+ This overrides most compression and
+ bitrate settings!
+
+ GO7007_MPEG_OMIT_GOP_HEADER Omit the GOP header.
+
+ GO7007_MPEG_REPEAT_SEQHEADER Repeat the MPEG sequence header at
+ the start of each GOP.
+
+
+ GO7007IOC_S_BITRATE, GO7007IOC_G_BITRATE
+
+ These ioctls are used to set and query the target bitrate value for the
+ compressed video stream. The bitrate may be selected by storing the
+ target bits per second in an int and calling GO7007IOC_S_BITRATE with a
+ pointer to the int. The bitrate may be queried by calling
+ GO7007IOC_G_BITRATE with a pointer to an int where the current bitrate
+ will be stored.
+
+ Note that this is the primary means of controlling the video quality
+ for all compression modes, including V4L2_PIX_FMT_MJPEG. The
+ VIDIOC_S_JPEGCOMP ioctl is not supported.
+
+
+----------------------------------------------------------------------------
+ Installing the WIS PCI Voyager Driver
+---------------------------------------------------------------------------
+
+The WIS PCI Voyager driver requires several patches to the Linux 2.6.11.x
+kernel source tree before compiling the driver. These patches update the
+in-kernel SAA7134 driver to the newest development version and patch bugs
+in the TDA8290/TDA8275 tuner driver.
+
+The following patches must be downloaded from Gerd Knorr's website and
+applied in the order listed:
+
+ http://dl.bytesex.org/patches/2.6.11-2/i2c-tuner
+ http://dl.bytesex.org/patches/2.6.11-2/i2c-tuner2
+ http://dl.bytesex.org/patches/2.6.11-2/v4l2-api-mpeg
+ http://dl.bytesex.org/patches/2.6.11-2/saa7134-update
+
+The following patches are included with this SDK and can be applied in any
+order:
+
+ patches/2.6.11/saa7134-voyager.diff
+ patches/2.6.11/tda8275-newaddr.diff
+ patches/2.6.11/tda8290-ntsc.diff
+
+Check to make sure the CONFIG_VIDEO_SAA7134 option is enabled in the kernel
+configuration, and build and install the kernel.
+
+After rebooting into the new kernel, the GO7007 driver can be compiled and
+installed:
+
+ $ make SAA7134_BUILD=y
+ $ make install
+ $ modprobe saa7134-go7007
+
+There will be two V4L video devices associated with the PCI Voyager. The
+first device (most likely /dev/video0) provides access to the raw video
+capture mode of the SAA7133 device and is used to configure the source
+video parameters and tune the TV tuner. This device can be used with xawtv
+or other V4L(2) video software as a standard uncompressed device.
+
+The second device (most likely /dev/video1) provides access to the
+compression functions of the GO7007. It can be tested using the gorecord
+application in the apps/ directory of this SDK:
+
+ $ apps/gorecord -vdevice /dev/video1 -noaudio test.avi
+
+Currently the frame resolution is fixed at 720x480 (NTSC) or 720x576 (PAL),
+and the video standard must be specified to both the raw and the compressed
+video devices (xawtv and gorecord, for example).
+
+
+--------------------------------------------------------------------------
+RELEASE NOTES FOR WIS GO7007SB LINUX DRIVER
+---------------------------------------------------------------------------
+
+Last updated: 5 November 2005
+
+ - Release 0.9.7 includes new support for using udev to run fxload. The
+ install script should automatically detect whether the old hotplug
+ scripts or the new udev rules should be used. To force the use of
+ hotplug, run "make install USE_UDEV=n". To force the use of udev, run
+ "make install USE_UDEV=y".
+
+ - Motion detection is supported but undocumented. Try the `modet` app
+ for a demonstration of how to use the facility.
+
+ - Using USB2.0 devices such as the TV402U with USB1.1 HCDs or hubs can
+ cause buffer overruns and frame drops, even at low framerates, due to
+ inconsistency in the bitrate control mechanism.
+
+ - On devices with an SAA7115, including the Plextor ConvertX, video height
+ values of 96, 128, 160, 192, 256, 320, and 384 do not work in NTSC mode.
+ All valid heights up to 512 work correctly in PAL mode.
+
+ - The WIS Star Trek and PCI Voyager boards have no support yet for audio
+ or the TV tuner.
git.openpandora.org / pandora-kernel.git / commitdiff