mirror of https://gitee.com/openkylin/linux.git
[PATCH] USB: Add ZC0301 Video4Linux2 driver
This patch adds a Video4Linux2 driver for ZC0301 Image Processor and Control Chip. Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Luca Risolia
Greg Kroah-Hartman
parent
c4a1745aa0
commit
60f780528f
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@ -0,0 +1,250 @@
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ZC0301 Image Processor and Control Chip
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Driver for Linux
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=======================================
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- Documentation -
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Index
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=====
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1. Copyright
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2. Disclaimer
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3. License
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4. Overview and features
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5. Module dependencies
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6. Module loading
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7. Module parameters
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8. Supported devices
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9. Notes for V4L2 application developers
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10. Contact information
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11. Credits
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1. Copyright
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============
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Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it>
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2. Disclaimer
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=============
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This software is not developed or sponsored by Z-Star Microelectronics Corp.
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Trademarks are property of their respective owner.
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3. License
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==========
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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4. Overview and features
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========================
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This driver supports the video interface of the devices mounting the ZC0301
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Image Processor and Control Chip.
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The driver relies on the Video4Linux2 and USB core modules. It has been
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designed to run properly on SMP systems as well.
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The latest version of the ZC0301 driver can be found at the following URL:
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http://www.linux-projects.org/
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Some of the features of the driver are:
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- full compliance with the Video4Linux2 API (see also "Notes for V4L2
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application developers" paragraph);
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- available mmap or read/poll methods for video streaming through isochronous
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data transfers;
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- automatic detection of image sensor;
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- video formats is standard JPEG in various compression qualities
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(see also "Notes for V4L2 application developers" paragraph);
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- full support for the capabilities of every possible image sensors that can
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be connected to the ZC0301 bridges, including, for istance, red, green,
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blue and global gain adjustments and exposure control (see "Supported
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devices" paragraph for details);
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- use of default color settings for sunlight conditions;
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- dynamic driver control thanks to various module parameters (see "Module
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parameters" paragraph);
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- up to 64 cameras can be handled at the same time; they can be connected and
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disconnected from the host many times without turning off the computer, if
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the system supports hotplugging;
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5. Module dependencies
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======================
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For it to work properly, the driver needs kernel support for Video4Linux and
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USB.
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The following options of the kernel configuration file must be enabled and
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corresponding modules must be compiled:
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# Multimedia devices
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#
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CONFIG_VIDEO_DEV=m
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# USB support
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#
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CONFIG_USB=m
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In addition, depending on the hardware being used, the modules below are
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necessary:
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# USB Host Controller Drivers
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#
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CONFIG_USB_EHCI_HCD=m
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CONFIG_USB_UHCI_HCD=m
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CONFIG_USB_OHCI_HCD=m
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The ZC0301 controller also provides a built-in microphone interface. It is
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supported by the USB Audio driver thanks to the ALSA API:
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# Sound
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#
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CONFIG_SOUND=y
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# Advanced Linux Sound Architecture
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#
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CONFIG_SND=m
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# USB devices
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#
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CONFIG_SND_USB_AUDIO=m
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And finally:
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# USB Multimedia devices
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#
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CONFIG_USB_ZC0301=m
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6. Module loading
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=================
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To use the driver, it is necessary to load the "zc0301" module into memory
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after every other module required: "videodev", "usbcore" and, depending on
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the USB host controller you have, "ehci-hcd", "uhci-hcd" or "ohci-hcd".
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Loading can be done as shown below:
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[root@localhost home]# modprobe zc0301
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At this point the devices should be recognized. You can invoke "dmesg" to
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analyze kernel messages and verify that the loading process has gone well:
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[user@localhost home]$ dmesg
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7. Module parameters
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====================
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Module parameters are listed below:
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-------------------------------------------------------------------------------
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Name: video_nr
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Type: short array (min = 0, max = 64)
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Syntax: <-1|n[,...]>
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Description: Specify V4L2 minor mode number:
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-1 = use next available
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n = use minor number n
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You can specify up to 64 cameras this way.
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For example:
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video_nr=-1,2,-1 would assign minor number 2 to the second
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registered camera and use auto for the first one and for every
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other camera.
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Default: -1
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-------------------------------------------------------------------------------
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Name: force_munmap
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Type: bool array (min = 0, max = 64)
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Syntax: <0|1[,...]>
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Description: Force the application to unmap previously mapped buffer memory
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before calling any VIDIOC_S_CROP or VIDIOC_S_FMT ioctl's. Not
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all the applications support this feature. This parameter is
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specific for each detected camera.
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0 = do not force memory unmapping
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1 = force memory unmapping (save memory)
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Default: 0
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-------------------------------------------------------------------------------
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Name: debug
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Type: ushort
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Syntax: <n>
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Description: Debugging information level, from 0 to 3:
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0 = none (use carefully)
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1 = critical errors
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2 = significant informations
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3 = more verbose messages
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Level 3 is useful for testing only, when only one device
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is used at the same time. It also shows some more informations
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about the hardware being detected. This module parameter can be
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changed at runtime thanks to the /sys filesystem interface.
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Default: 2
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-------------------------------------------------------------------------------
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8. Supported devices
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====================
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None of the names of the companies as well as their products will be mentioned
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here. They have never collaborated with the author, so no advertising.
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From the point of view of a driver, what unambiguously identify a device are
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its vendor and product USB identifiers. Below is a list of known identifiers of
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devices mounting the ZC0301 Image Processor and Control Chips:
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Vendor ID Product ID
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--------- ----------
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0x046d 0x08ae
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The following image sensors are supported:
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Model Manufacturer
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----- ------------
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PAS202BCB PixArt Imaging, Inc.
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All the available control settings of each image sensor are supported through
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the V4L2 interface.
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9. Notes for V4L2 application developers
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========================================
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This driver follows the V4L2 API specifications. In particular, it enforces two
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rules:
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- exactly one I/O method, either "mmap" or "read", is associated with each
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file descriptor. Once it is selected, the application must close and reopen the
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device to switch to the other I/O method;
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- although it is not mandatory, previously mapped buffer memory should always
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be unmapped before calling any "VIDIOC_S_CROP" or "VIDIOC_S_FMT" ioctl's.
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The same number of buffers as before will be allocated again to match the size
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of the new video frames, so you have to map the buffers again before any I/O
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attempts on them.
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This driver supports the standard JPEG video format. The current compression
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quality may vary from 0 to 3 and can be selected or queried thanks to the
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VIDIOC_S_JPEGCOMP and VIDIOC_G_JPEGCOMP V4L2 ioctl's.
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10. Contact information
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=======================
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The author may be contacted by e-mail at <luca.risolia@studio.unibo.it>.
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GPG/PGP encrypted e-mail's are accepted. The GPG key ID of the author is
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'FCE635A4'; the public 1024-bit key should be available at any keyserver;
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the fingerprint is: '88E8 F32F 7244 68BA 3958 5D40 99DA 5D2A FCE6 35A4'.
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11. Credits
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===========
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- Informations about the chip internals to enable the I2C protocol have been
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taken from the documentation of the ZC030x Video4Linux1 driver written by
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Andrew Birkett <andy@nobugs.org>;
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- Initialization values of the ZC0301 connected to the PAS202BCB image sensor
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have been taken from the SPCA5XX driver maintained by
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Michel Xhaard <mxhaard@magic.fr>
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@ -2902,6 +2902,14 @@ L: video4linux-list@redhat.com
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W: http://www.linux-projects.org
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S: Maintained
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USB ZC0301 DRIVER
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P: Luca Risolia
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M: luca.risolia@studio.unibo.it
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L: linux-usb-devel@lists.sourceforge.net
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L: video4linux-list@redhat.com
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W: http://www.linux-projects.org
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S: Maintained
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USB ZD1201 DRIVER
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P: Jeroen Vreeken
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M: pe1rxq@amsat.org
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@ -48,6 +48,7 @@ obj-$(CONFIG_USB_SN9C102) += media/
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obj-$(CONFIG_USB_STV680) += media/
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obj-$(CONFIG_USB_VICAM) += media/
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obj-$(CONFIG_USB_W9968CF) += media/
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obj-$(CONFIG_USB_ZC0301) += media/
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obj-$(CONFIG_USB_CATC) += net/
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obj-$(CONFIG_USB_KAWETH) += net/
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@ -191,6 +191,21 @@ config USB_W9968CF
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To compile this driver as a module, choose M here: the
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module will be called w9968cf.
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config USB_ZC0301
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tristate "USB ZC0301 Image Processor and Control Chip support"
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depends on USB && VIDEO_DEV
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---help---
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Say Y here if you want support for cameras based on the ZC0301
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Image Processor and Control Chip.
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See <file:Documentation/usb/zc0301.txt> for more informations.
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This driver uses the Video For Linux API. You must say Y or M to
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"Video For Linux" to use this driver.
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To compile this driver as a module, choose M here: the
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module will be called zc0301.
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config USB_PWC
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tristate "USB Philips Cameras"
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depends on USB && VIDEO_DEV
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@ -4,6 +4,7 @@
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sn9c102-objs := sn9c102_core.o sn9c102_hv7131d.o sn9c102_mi0343.o sn9c102_ov7630.o sn9c102_pas106b.o sn9c102_pas202bcb.o sn9c102_tas5110c1b.o sn9c102_tas5130d1b.o
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et61x251-objs := et61x251_core.o et61x251_tas5130d1b.o
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zc0301-objs := zc0301_core.o zc0301_pas202bcb.o
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obj-$(CONFIG_USB_DABUSB) += dabusb.o
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obj-$(CONFIG_USB_DSBR) += dsbr100.o
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@ -16,4 +17,5 @@ obj-$(CONFIG_USB_SN9C102) += sn9c102.o
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obj-$(CONFIG_USB_STV680) += stv680.o
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obj-$(CONFIG_USB_VICAM) += vicam.o usbvideo.o
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obj-$(CONFIG_USB_W9968CF) += w9968cf.o
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obj-$(CONFIG_USB_ZC0301) += zc0301.o
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obj-$(CONFIG_USB_PWC) += pwc/
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@ -0,0 +1,185 @@
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/***************************************************************************
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* V4L2 driver for ZC0301 Image Processor and Control Chip *
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* *
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* Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software *
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
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***************************************************************************/
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#ifndef _ZC0301_H_
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#define _ZC0301_H_
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#include <linux/version.h>
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#include <linux/usb.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <linux/device.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/time.h>
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#include <linux/wait.h>
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#include <linux/types.h>
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#include <linux/param.h>
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#include <linux/mutex.h>
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#include <linux/rwsem.h>
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#include <asm/semaphore.h>
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#include "zc0301_sensor.h"
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/*****************************************************************************/
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#define ZC0301_DEBUG
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#define ZC0301_DEBUG_LEVEL 2
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#define ZC0301_MAX_DEVICES 64
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#define ZC0301_FORCE_MUNMAP 0
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#define ZC0301_MAX_FRAMES 32
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#define ZC0301_COMPRESSION_QUALITY 2
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#define ZC0301_URBS 2
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#define ZC0301_ISO_PACKETS 7
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#define ZC0301_ALTERNATE_SETTING 7
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#define ZC0301_URB_TIMEOUT msecs_to_jiffies(2 * ZC0301_ISO_PACKETS)
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#define ZC0301_CTRL_TIMEOUT 100
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#define ZC0301_FRAME_TIMEOUT 2 * 1000 * msecs_to_jiffies(1)
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/*****************************************************************************/
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ZC0301_ID_TABLE
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ZC0301_SENSOR_TABLE
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enum zc0301_frame_state {
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F_UNUSED,
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F_QUEUED,
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F_GRABBING,
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F_DONE,
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F_ERROR,
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};
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struct zc0301_frame_t {
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void* bufmem;
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struct v4l2_buffer buf;
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enum zc0301_frame_state state;
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struct list_head frame;
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unsigned long vma_use_count;
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};
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enum zc0301_dev_state {
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DEV_INITIALIZED = 0x01,
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DEV_DISCONNECTED = 0x02,
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DEV_MISCONFIGURED = 0x04,
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};
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enum zc0301_io_method {
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IO_NONE,
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IO_READ,
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IO_MMAP,
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};
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enum zc0301_stream_state {
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STREAM_OFF,
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STREAM_INTERRUPT,
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STREAM_ON,
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};
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struct zc0301_module_param {
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u8 force_munmap;
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};
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static DECLARE_RWSEM(zc0301_disconnect);
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struct zc0301_device {
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struct video_device* v4ldev;
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struct zc0301_sensor* sensor;
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struct usb_device* usbdev;
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struct urb* urb[ZC0301_URBS];
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void* transfer_buffer[ZC0301_URBS];
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u8* control_buffer;
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struct zc0301_frame_t *frame_current, frame[ZC0301_MAX_FRAMES];
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struct list_head inqueue, outqueue;
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u32 frame_count, nbuffers, nreadbuffers;
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enum zc0301_io_method io;
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enum zc0301_stream_state stream;
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struct v4l2_jpegcompression compression;
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struct zc0301_module_param module_param;
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enum zc0301_dev_state state;
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u8 users;
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struct mutex dev_mutex, fileop_mutex;
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spinlock_t queue_lock;
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wait_queue_head_t open, wait_frame, wait_stream;
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};
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/*****************************************************************************/
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void
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zc0301_attach_sensor(struct zc0301_device* cam, struct zc0301_sensor* sensor)
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{
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cam->sensor = sensor;
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cam->sensor->usbdev = cam->usbdev;
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}
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/*****************************************************************************/
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#undef DBG
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#undef KDBG
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#ifdef ZC0301_DEBUG
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# define DBG(level, fmt, args...) \
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do { \
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if (debug >= (level)) { \
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if ((level) == 1) \
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dev_err(&cam->usbdev->dev, fmt "\n", ## args); \
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else if ((level) == 2) \
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dev_info(&cam->usbdev->dev, fmt "\n", ## args); \
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else if ((level) >= 3) \
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dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \
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__FUNCTION__, __LINE__ , ## args); \
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} \
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} while (0)
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# define KDBG(level, fmt, args...) \
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do { \
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if (debug >= (level)) { \
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if ((level) == 1 || (level) == 2) \
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pr_info("zc0301: " fmt "\n", ## args); \
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else if ((level) == 3) \
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pr_debug("zc0301: [%s:%d] " fmt "\n", __FUNCTION__, \
|
||||
__LINE__ , ## args); \
|
||||
} \
|
||||
} while (0)
|
||||
# define V4LDBG(level, name, cmd) \
|
||||
do { \
|
||||
if (debug >= (level)) \
|
||||
v4l_print_ioctl(name, cmd); \
|
||||
} while (0)
|
||||
#else
|
||||
# define DBG(level, fmt, args...) do {;} while(0)
|
||||
# define KDBG(level, fmt, args...) do {;} while(0)
|
||||
# define V4LDBG(level, name, cmd) do {;} while(0)
|
||||
#endif
|
||||
|
||||
#undef PDBG
|
||||
#define PDBG(fmt, args...) \
|
||||
dev_info(&cam->usbdev->dev, "[%s:%d] " fmt "\n", \
|
||||
__FUNCTION__, __LINE__ , ## args)
|
||||
|
||||
#undef PDBGG
|
||||
#define PDBGG(fmt, args...) do {;} while(0) /* placeholder */
|
||||
|
||||
#endif /* _ZC0301_H_ */
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,353 @@
|
|||
/***************************************************************************
|
||||
* Plug-in for PAS202BCB image sensor connected to the ZC030! Image *
|
||||
* Processor and Control Chip *
|
||||
* *
|
||||
* Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
|
||||
* *
|
||||
* Initialization values of the ZC0301 have been taken from the SPCA5XX *
|
||||
* driver maintained by Michel Xhaard <mxhaard@magic.fr> *
|
||||
* *
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA. *
|
||||
***************************************************************************/
|
||||
|
||||
#include <linux/delay.h>
|
||||
#include "zc0301_sensor.h"
|
||||
|
||||
|
||||
static struct zc0301_sensor pas202bcb;
|
||||
|
||||
|
||||
static int pas202bcb_init(struct zc0301_device* cam)
|
||||
{
|
||||
int err = 0;
|
||||
|
||||
err += zc0301_write_reg(cam, 0x0002, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x0003, 0x02);
|
||||
err += zc0301_write_reg(cam, 0x0004, 0x80);
|
||||
err += zc0301_write_reg(cam, 0x0005, 0x01);
|
||||
err += zc0301_write_reg(cam, 0x0006, 0xE0);
|
||||
err += zc0301_write_reg(cam, 0x0098, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x009A, 0x03);
|
||||
err += zc0301_write_reg(cam, 0x011A, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x011C, 0x03);
|
||||
err += zc0301_write_reg(cam, 0x009B, 0x01);
|
||||
err += zc0301_write_reg(cam, 0x009C, 0xE6);
|
||||
err += zc0301_write_reg(cam, 0x009D, 0x02);
|
||||
err += zc0301_write_reg(cam, 0x009E, 0x86);
|
||||
|
||||
err += zc0301_i2c_write(cam, 0x02, 0x02);
|
||||
err += zc0301_i2c_write(cam, 0x0A, 0x01);
|
||||
err += zc0301_i2c_write(cam, 0x0B, 0x01);
|
||||
err += zc0301_i2c_write(cam, 0x0D, 0x00);
|
||||
err += zc0301_i2c_write(cam, 0x12, 0x05);
|
||||
err += zc0301_i2c_write(cam, 0x13, 0x63);
|
||||
err += zc0301_i2c_write(cam, 0x15, 0x70);
|
||||
|
||||
err += zc0301_write_reg(cam, 0x0101, 0xB7);
|
||||
err += zc0301_write_reg(cam, 0x0100, 0x0D);
|
||||
err += zc0301_write_reg(cam, 0x0189, 0x06);
|
||||
err += zc0301_write_reg(cam, 0x01AD, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x01C5, 0x03);
|
||||
err += zc0301_write_reg(cam, 0x01CB, 0x13);
|
||||
err += zc0301_write_reg(cam, 0x0250, 0x08);
|
||||
err += zc0301_write_reg(cam, 0x0301, 0x08);
|
||||
err += zc0301_write_reg(cam, 0x018D, 0x70);
|
||||
err += zc0301_write_reg(cam, 0x0008, 0x03);
|
||||
err += zc0301_write_reg(cam, 0x01C6, 0x04);
|
||||
err += zc0301_write_reg(cam, 0x01CB, 0x07);
|
||||
err += zc0301_write_reg(cam, 0x0120, 0x11);
|
||||
err += zc0301_write_reg(cam, 0x0121, 0x37);
|
||||
err += zc0301_write_reg(cam, 0x0122, 0x58);
|
||||
err += zc0301_write_reg(cam, 0x0123, 0x79);
|
||||
err += zc0301_write_reg(cam, 0x0124, 0x91);
|
||||
err += zc0301_write_reg(cam, 0x0125, 0xA6);
|
||||
err += zc0301_write_reg(cam, 0x0126, 0xB8);
|
||||
err += zc0301_write_reg(cam, 0x0127, 0xC7);
|
||||
err += zc0301_write_reg(cam, 0x0128, 0xD3);
|
||||
err += zc0301_write_reg(cam, 0x0129, 0xDE);
|
||||
err += zc0301_write_reg(cam, 0x012A, 0xE6);
|
||||
err += zc0301_write_reg(cam, 0x012B, 0xED);
|
||||
err += zc0301_write_reg(cam, 0x012C, 0xF3);
|
||||
err += zc0301_write_reg(cam, 0x012D, 0xF8);
|
||||
err += zc0301_write_reg(cam, 0x012E, 0xFB);
|
||||
err += zc0301_write_reg(cam, 0x012F, 0xFF);
|
||||
err += zc0301_write_reg(cam, 0x0130, 0x26);
|
||||
err += zc0301_write_reg(cam, 0x0131, 0x23);
|
||||
err += zc0301_write_reg(cam, 0x0132, 0x20);
|
||||
err += zc0301_write_reg(cam, 0x0133, 0x1C);
|
||||
err += zc0301_write_reg(cam, 0x0134, 0x16);
|
||||
err += zc0301_write_reg(cam, 0x0135, 0x13);
|
||||
err += zc0301_write_reg(cam, 0x0136, 0x10);
|
||||
err += zc0301_write_reg(cam, 0x0137, 0x0D);
|
||||
err += zc0301_write_reg(cam, 0x0138, 0x0B);
|
||||
err += zc0301_write_reg(cam, 0x0139, 0x09);
|
||||
err += zc0301_write_reg(cam, 0x013A, 0x07);
|
||||
err += zc0301_write_reg(cam, 0x013B, 0x06);
|
||||
err += zc0301_write_reg(cam, 0x013C, 0x05);
|
||||
err += zc0301_write_reg(cam, 0x013D, 0x04);
|
||||
err += zc0301_write_reg(cam, 0x013E, 0x03);
|
||||
err += zc0301_write_reg(cam, 0x013F, 0x02);
|
||||
err += zc0301_write_reg(cam, 0x010A, 0x4C);
|
||||
err += zc0301_write_reg(cam, 0x010B, 0xF5);
|
||||
err += zc0301_write_reg(cam, 0x010C, 0xFF);
|
||||
err += zc0301_write_reg(cam, 0x010D, 0xF9);
|
||||
err += zc0301_write_reg(cam, 0x010E, 0x51);
|
||||
err += zc0301_write_reg(cam, 0x010F, 0xF5);
|
||||
err += zc0301_write_reg(cam, 0x0110, 0xFB);
|
||||
err += zc0301_write_reg(cam, 0x0111, 0xED);
|
||||
err += zc0301_write_reg(cam, 0x0112, 0x5F);
|
||||
err += zc0301_write_reg(cam, 0x0180, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x0019, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x0087, 0x20);
|
||||
err += zc0301_write_reg(cam, 0x0088, 0x21);
|
||||
|
||||
err += zc0301_i2c_write(cam, 0x20, 0x02);
|
||||
err += zc0301_i2c_write(cam, 0x21, 0x1B);
|
||||
err += zc0301_i2c_write(cam, 0x03, 0x44);
|
||||
err += zc0301_i2c_write(cam, 0x0E, 0x01);
|
||||
err += zc0301_i2c_write(cam, 0x0F, 0x00);
|
||||
|
||||
err += zc0301_write_reg(cam, 0x01A9, 0x14);
|
||||
err += zc0301_write_reg(cam, 0x01AA, 0x24);
|
||||
err += zc0301_write_reg(cam, 0x0190, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x0191, 0x02);
|
||||
err += zc0301_write_reg(cam, 0x0192, 0x1B);
|
||||
err += zc0301_write_reg(cam, 0x0195, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x0196, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x0197, 0x4D);
|
||||
err += zc0301_write_reg(cam, 0x018C, 0x10);
|
||||
err += zc0301_write_reg(cam, 0x018F, 0x20);
|
||||
err += zc0301_write_reg(cam, 0x001D, 0x44);
|
||||
err += zc0301_write_reg(cam, 0x001E, 0x6F);
|
||||
err += zc0301_write_reg(cam, 0x001F, 0xAD);
|
||||
err += zc0301_write_reg(cam, 0x0020, 0xEB);
|
||||
err += zc0301_write_reg(cam, 0x0087, 0x0F);
|
||||
err += zc0301_write_reg(cam, 0x0088, 0x0E);
|
||||
err += zc0301_write_reg(cam, 0x0180, 0x40);
|
||||
err += zc0301_write_reg(cam, 0x0192, 0x1B);
|
||||
err += zc0301_write_reg(cam, 0x0191, 0x02);
|
||||
err += zc0301_write_reg(cam, 0x0190, 0x00);
|
||||
err += zc0301_write_reg(cam, 0x0116, 0x1D);
|
||||
err += zc0301_write_reg(cam, 0x0117, 0x40);
|
||||
err += zc0301_write_reg(cam, 0x0118, 0x99);
|
||||
err += zc0301_write_reg(cam, 0x0180, 0x42);
|
||||
err += zc0301_write_reg(cam, 0x0116, 0x1D);
|
||||
err += zc0301_write_reg(cam, 0x0117, 0x40);
|
||||
err += zc0301_write_reg(cam, 0x0118, 0x99);
|
||||
err += zc0301_write_reg(cam, 0x0007, 0x00);
|
||||
|
||||
err += zc0301_i2c_write(cam, 0x11, 0x01);
|
||||
|
||||
msleep(100);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
static int pas202bcb_get_ctrl(struct zc0301_device* cam,
|
||||
struct v4l2_control* ctrl)
|
||||
{
|
||||
switch (ctrl->id) {
|
||||
case V4L2_CID_EXPOSURE:
|
||||
{
|
||||
int r1 = zc0301_i2c_read(cam, 0x04, 1),
|
||||
r2 = zc0301_i2c_read(cam, 0x05, 1);
|
||||
if (r1 < 0 || r2 < 0)
|
||||
return -EIO;
|
||||
ctrl->value = (r1 << 6) | (r2 & 0x3f);
|
||||
}
|
||||
return 0;
|
||||
case V4L2_CID_RED_BALANCE:
|
||||
if ((ctrl->value = zc0301_i2c_read(cam, 0x09, 1)) < 0)
|
||||
return -EIO;
|
||||
ctrl->value &= 0x0f;
|
||||
return 0;
|
||||
case V4L2_CID_BLUE_BALANCE:
|
||||
if ((ctrl->value = zc0301_i2c_read(cam, 0x07, 1)) < 0)
|
||||
return -EIO;
|
||||
ctrl->value &= 0x0f;
|
||||
return 0;
|
||||
case V4L2_CID_GAIN:
|
||||
if ((ctrl->value = zc0301_i2c_read(cam, 0x10, 1)) < 0)
|
||||
return -EIO;
|
||||
ctrl->value &= 0x1f;
|
||||
return 0;
|
||||
case ZC0301_V4L2_CID_GREEN_BALANCE:
|
||||
if ((ctrl->value = zc0301_i2c_read(cam, 0x08, 1)) < 0)
|
||||
return -EIO;
|
||||
ctrl->value &= 0x0f;
|
||||
return 0;
|
||||
case ZC0301_V4L2_CID_DAC_MAGNITUDE:
|
||||
if ((ctrl->value = zc0301_i2c_read(cam, 0x0c, 1)) < 0)
|
||||
return -EIO;
|
||||
return 0;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int pas202bcb_set_ctrl(struct zc0301_device* cam,
|
||||
const struct v4l2_control* ctrl)
|
||||
{
|
||||
int err = 0;
|
||||
|
||||
switch (ctrl->id) {
|
||||
case V4L2_CID_EXPOSURE:
|
||||
err += zc0301_i2c_write(cam, 0x04, ctrl->value >> 6);
|
||||
err += zc0301_i2c_write(cam, 0x05, ctrl->value & 0x3f);
|
||||
break;
|
||||
case V4L2_CID_RED_BALANCE:
|
||||
err += zc0301_i2c_write(cam, 0x09, ctrl->value);
|
||||
break;
|
||||
case V4L2_CID_BLUE_BALANCE:
|
||||
err += zc0301_i2c_write(cam, 0x07, ctrl->value);
|
||||
break;
|
||||
case V4L2_CID_GAIN:
|
||||
err += zc0301_i2c_write(cam, 0x10, ctrl->value);
|
||||
break;
|
||||
case ZC0301_V4L2_CID_GREEN_BALANCE:
|
||||
err += zc0301_i2c_write(cam, 0x08, ctrl->value);
|
||||
break;
|
||||
case ZC0301_V4L2_CID_DAC_MAGNITUDE:
|
||||
err += zc0301_i2c_write(cam, 0x0c, ctrl->value);
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
err += zc0301_i2c_write(cam, 0x11, 0x01);
|
||||
|
||||
return err ? -EIO : 0;
|
||||
}
|
||||
|
||||
|
||||
static struct zc0301_sensor pas202bcb = {
|
||||
.name = "PAS202BCB",
|
||||
.init = &pas202bcb_init,
|
||||
.qctrl = {
|
||||
{
|
||||
.id = V4L2_CID_EXPOSURE,
|
||||
.type = V4L2_CTRL_TYPE_INTEGER,
|
||||
.name = "exposure",
|
||||
.minimum = 0x01e5,
|
||||
.maximum = 0x3fff,
|
||||
.step = 0x0001,
|
||||
.default_value = 0x01e5,
|
||||
.flags = 0,
|
||||
},
|
||||
{
|
||||
.id = V4L2_CID_GAIN,
|
||||
.type = V4L2_CTRL_TYPE_INTEGER,
|
||||
.name = "global gain",
|
||||
.minimum = 0x00,
|
||||
.maximum = 0x1f,
|
||||
.step = 0x01,
|
||||
.default_value = 0x0c,
|
||||
.flags = 0,
|
||||
},
|
||||
{
|
||||
.id = V4L2_CID_RED_BALANCE,
|
||||
.type = V4L2_CTRL_TYPE_INTEGER,
|
||||
.name = "red balance",
|
||||
.minimum = 0x00,
|
||||
.maximum = 0x0f,
|
||||
.step = 0x01,
|
||||
.default_value = 0x01,
|
||||
.flags = 0,
|
||||
},
|
||||
{
|
||||
.id = V4L2_CID_BLUE_BALANCE,
|
||||
.type = V4L2_CTRL_TYPE_INTEGER,
|
||||
.name = "blue balance",
|
||||
.minimum = 0x00,
|
||||
.maximum = 0x0f,
|
||||
.step = 0x01,
|
||||
.default_value = 0x05,
|
||||
.flags = 0,
|
||||
},
|
||||
{
|
||||
.id = ZC0301_V4L2_CID_GREEN_BALANCE,
|
||||
.type = V4L2_CTRL_TYPE_INTEGER,
|
||||
.name = "green balance",
|
||||
.minimum = 0x00,
|
||||
.maximum = 0x0f,
|
||||
.step = 0x01,
|
||||
.default_value = 0x00,
|
||||
.flags = 0,
|
||||
},
|
||||
{
|
||||
.id = ZC0301_V4L2_CID_DAC_MAGNITUDE,
|
||||
.type = V4L2_CTRL_TYPE_INTEGER,
|
||||
.name = "DAC magnitude",
|
||||
.minimum = 0x00,
|
||||
.maximum = 0xff,
|
||||
.step = 0x01,
|
||||
.default_value = 0x04,
|
||||
.flags = 0,
|
||||
},
|
||||
},
|
||||
.get_ctrl = &pas202bcb_get_ctrl,
|
||||
.set_ctrl = &pas202bcb_set_ctrl,
|
||||
.cropcap = {
|
||||
.bounds = {
|
||||
.left = 0,
|
||||
.top = 0,
|
||||
.width = 640,
|
||||
.height = 480,
|
||||
},
|
||||
.defrect = {
|
||||
.left = 0,
|
||||
.top = 0,
|
||||
.width = 640,
|
||||
.height = 480,
|
||||
},
|
||||
},
|
||||
.pix_format = {
|
||||
.width = 640,
|
||||
.height = 480,
|
||||
.pixelformat = V4L2_PIX_FMT_JPEG,
|
||||
.priv = 16,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
int zc0301_probe_pas202bcb(struct zc0301_device* cam)
|
||||
{
|
||||
int r0 = 0, r1 = 0, err = 0;
|
||||
unsigned int pid = 0;
|
||||
|
||||
err += zc0301_write_reg(cam, 0x0000, 0x01);
|
||||
err += zc0301_write_reg(cam, 0x0010, 0x0e);
|
||||
err += zc0301_write_reg(cam, 0x0001, 0x01);
|
||||
err += zc0301_write_reg(cam, 0x0012, 0x03);
|
||||
err += zc0301_write_reg(cam, 0x0012, 0x01);
|
||||
err += zc0301_write_reg(cam, 0x008d, 0x08);
|
||||
|
||||
msleep(10);
|
||||
|
||||
r0 = zc0301_i2c_read(cam, 0x00, 1);
|
||||
r1 = zc0301_i2c_read(cam, 0x01, 1);
|
||||
|
||||
if (r0 < 0 || r1 < 0 || err)
|
||||
return -EIO;
|
||||
|
||||
pid = (r0 << 4) | ((r1 & 0xf0) >> 4);
|
||||
if (pid != 0x017)
|
||||
return -ENODEV;
|
||||
|
||||
zc0301_attach_sensor(cam, &pas202bcb);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,98 @@
|
|||
/***************************************************************************
|
||||
* API for image sensors connected to the ZC030! Image Processor and *
|
||||
* Control Chip *
|
||||
* *
|
||||
* Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
|
||||
* *
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA. *
|
||||
***************************************************************************/
|
||||
|
||||
#ifndef _ZC0301_SENSOR_H_
|
||||
#define _ZC0301_SENSOR_H_
|
||||
|
||||
#include <linux/usb.h>
|
||||
#include <linux/videodev.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/stddef.h>
|
||||
#include <linux/errno.h>
|
||||
#include <asm/types.h>
|
||||
|
||||
struct zc0301_device;
|
||||
struct zc0301_sensor;
|
||||
|
||||
/*****************************************************************************/
|
||||
|
||||
extern int zc0301_probe_pas202bcb(struct zc0301_device* cam);
|
||||
|
||||
#define ZC0301_SENSOR_TABLE \
|
||||
/* Weak detections must go at the end of the list */ \
|
||||
static int (*zc0301_sensor_table[])(struct zc0301_device*) = { \
|
||||
&zc0301_probe_pas202bcb, \
|
||||
NULL, \
|
||||
};
|
||||
|
||||
extern void
|
||||
zc0301_attach_sensor(struct zc0301_device* cam,
|
||||
struct zc0301_sensor* sensor);
|
||||
|
||||
#define ZC0301_USB_DEVICE(vend, prod, intclass) \
|
||||
.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
|
||||
USB_DEVICE_ID_MATCH_INT_CLASS, \
|
||||
.idVendor = (vend), \
|
||||
.idProduct = (prod), \
|
||||
.bInterfaceClass = (intclass)
|
||||
|
||||
#define ZC0301_ID_TABLE \
|
||||
static const struct usb_device_id zc0301_id_table[] = { \
|
||||
{ ZC0301_USB_DEVICE(0x046d, 0x08ae, 0xff), }, /* PAS202BCB */ \
|
||||
{ } \
|
||||
};
|
||||
|
||||
/*****************************************************************************/
|
||||
|
||||
extern int zc0301_write_reg(struct zc0301_device*, u16 index, u16 value);
|
||||
extern int zc0301_read_reg(struct zc0301_device*, u16 index);
|
||||
extern int zc0301_i2c_write(struct zc0301_device*, u16 address, u16 value);
|
||||
extern int zc0301_i2c_read(struct zc0301_device*, u16 address, u8 length);
|
||||
|
||||
/*****************************************************************************/
|
||||
|
||||
#define ZC0301_MAX_CTRLS V4L2_CID_LASTP1-V4L2_CID_BASE+10
|
||||
#define ZC0301_V4L2_CID_DAC_MAGNITUDE V4L2_CID_PRIVATE_BASE
|
||||
#define ZC0301_V4L2_CID_GREEN_BALANCE V4L2_CID_PRIVATE_BASE + 1
|
||||
|
||||
struct zc0301_sensor {
|
||||
char name[32];
|
||||
|
||||
struct v4l2_queryctrl qctrl[ZC0301_MAX_CTRLS];
|
||||
struct v4l2_cropcap cropcap;
|
||||
struct v4l2_pix_format pix_format;
|
||||
|
||||
int (*init)(struct zc0301_device* cam);
|
||||
int (*get_ctrl)(struct zc0301_device* cam,
|
||||
struct v4l2_control* ctrl);
|
||||
int (*set_ctrl)(struct zc0301_device* cam,
|
||||
const struct v4l2_control* ctrl);
|
||||
int (*set_crop)(struct zc0301_device* cam,
|
||||
const struct v4l2_rect* rect);
|
||||
|
||||
const struct usb_device* usbdev;
|
||||
|
||||
/* Private */
|
||||
struct v4l2_queryctrl _qctrl[ZC0301_MAX_CTRLS];
|
||||
struct v4l2_rect _rect;
|
||||
};
|
||||
|
||||
#endif /* _ZC0301_SENSOR_H_ */
|
||||
Loading…
Reference in New Issue