diff options
Diffstat (limited to 'Documentation/driver-api/media/drivers')
4 files changed, 1 insertions, 98 deletions
diff --git a/Documentation/driver-api/media/drivers/cpia2_devel.rst b/Documentation/driver-api/media/drivers/cpia2_devel.rst deleted file mode 100644 index decaa4768c78..000000000000 --- a/Documentation/driver-api/media/drivers/cpia2_devel.rst +++ /dev/null @@ -1,56 +0,0 @@ -.. SPDX-License-Identifier: GPL-2.0 - -The cpia2 driver -================ - -Authors: Peter Pregler <Peter_Pregler@email.com>, -Scott J. Bertin <scottbertin@yahoo.com>, and -Jarl Totland <Jarl.Totland@bdc.no> for the original cpia driver, which -this one was modelled from. - - -Notes to developers -~~~~~~~~~~~~~~~~~~~ - - - This is a driver version stripped of the 2.4 back compatibility - and old MJPEG ioctl API. See cpia2.sf.net for 2.4 support. - -Programmer's overview of cpia2 driver -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -Cpia2 is the second generation video coprocessor from VLSI Vision Ltd (now a -division of ST Microelectronics). There are two versions. The first is the -STV0672, which is capable of up to 30 frames per second (fps) in frame sizes -up to CIF, and 15 fps for VGA frames. The STV0676 is an improved version, -which can handle up to 30 fps VGA. Both coprocessors can be attached to two -CMOS sensors - the vvl6410 CIF sensor and the vvl6500 VGA sensor. These will -be referred to as the 410 and the 500 sensors, or the CIF and VGA sensors. - -The two chipsets operate almost identically. The core is an 8051 processor, -running two different versions of firmware. The 672 runs the VP4 video -processor code, the 676 runs VP5. There are a few differences in register -mappings for the two chips. In these cases, the symbols defined in the -header files are marked with VP4 or VP5 as part of the symbol name. - -The cameras appear externally as three sets of registers. Setting register -values is the only way to control the camera. Some settings are -interdependant, such as the sequence required to power up the camera. I will -try to make note of all of these cases. - -The register sets are called blocks. Block 0 is the system block. This -section is always powered on when the camera is plugged in. It contains -registers that control housekeeping functions such as powering up the video -processor. The video processor is the VP block. These registers control -how the video from the sensor is processed. Examples are timing registers, -user mode (vga, qvga), scaling, cropping, framerates, and so on. The last -block is the video compressor (VC). The video stream sent from the camera is -compressed as Motion JPEG (JPEGA). The VC controls all of the compression -parameters. Looking at the file cpia2_registers.h, you can get a full view -of these registers and the possible values for most of them. - -One or more registers can be set or read by sending a usb control message to -the camera. There are three modes for this. Block mode requests a number -of contiguous registers. Random mode reads or writes random registers with -a tuple structure containing address/value pairs. The repeat mode is only -used by VP4 to load a firmware patch. It contains a starting address and -a sequence of bytes to be written into a gpio port. diff --git a/Documentation/driver-api/media/drivers/davinci-vpbe-devel.rst b/Documentation/driver-api/media/drivers/davinci-vpbe-devel.rst deleted file mode 100644 index 4e87bdbc7ae4..000000000000 --- a/Documentation/driver-api/media/drivers/davinci-vpbe-devel.rst +++ /dev/null @@ -1,39 +0,0 @@ -.. SPDX-License-Identifier: GPL-2.0 - -The VPBE V4L2 driver design -=========================== - -File partitioning ------------------ - - V4L2 display device driver - drivers/media/platform/ti/davinci/vpbe_display.c - drivers/media/platform/ti/davinci/vpbe_display.h - - VPBE display controller - drivers/media/platform/ti/davinci/vpbe.c - drivers/media/platform/ti/davinci/vpbe.h - - VPBE venc sub device driver - drivers/media/platform/ti/davinci/vpbe_venc.c - drivers/media/platform/ti/davinci/vpbe_venc.h - drivers/media/platform/ti/davinci/vpbe_venc_regs.h - - VPBE osd driver - drivers/media/platform/ti/davinci/vpbe_osd.c - drivers/media/platform/ti/davinci/vpbe_osd.h - drivers/media/platform/ti/davinci/vpbe_osd_regs.h - -To be done ----------- - -vpbe display controller - - Add support for external encoders. - - add support for selecting external encoder as default at probe time. - -vpbe venc sub device - - add timings for supporting ths8200 - - add support for LogicPD LCD. - -FB drivers - - Add support for fbdev drivers.- Ready and part of subsequent patches. diff --git a/Documentation/driver-api/media/drivers/index.rst b/Documentation/driver-api/media/drivers/index.rst index 32406490557c..c4123a16b5f9 100644 --- a/Documentation/driver-api/media/drivers/index.rst +++ b/Documentation/driver-api/media/drivers/index.rst @@ -13,10 +13,8 @@ Video4Linux (V4L) drivers :maxdepth: 5 bttv-devel - cpia2_devel cx2341x-devel cx88-devel - davinci-vpbe-devel fimc-devel pvrusb2 pxa_camera diff --git a/Documentation/driver-api/media/drivers/vidtv.rst b/Documentation/driver-api/media/drivers/vidtv.rst index 673bdff919ea..54f269f478d3 100644 --- a/Documentation/driver-api/media/drivers/vidtv.rst +++ b/Documentation/driver-api/media/drivers/vidtv.rst @@ -28,7 +28,7 @@ Currently, it consists of: takes parameters at initialization that will dictate how the simulation behaves. -- Code reponsible for encoding a valid MPEG Transport Stream, which is then +- Code responsible for encoding a valid MPEG Transport Stream, which is then passed to the bridge driver. This fake stream contains some hardcoded content. For now, we have a single, audio-only channel containing a single MPEG Elementary Stream, which in turn contains a SMPTE 302m encoded sine-wave. |