639 lines
22 KiB
C
639 lines
22 KiB
C
/*****************************************************************************
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* *
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* easycap.h *
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* *
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*****************************************************************************/
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/*
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*
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* Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org>
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*
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*
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* This 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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* The software 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 software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/*****************************************************************************/
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/*---------------------------------------------------------------------------*/
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/*
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* THE FOLLOWING PARAMETERS ARE UNDEFINED:
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*
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* EASYCAP_DEBUG
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* EASYCAP_IS_VIDEODEV_CLIENT
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* EASYCAP_NEEDS_USBVIDEO_H
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* EASYCAP_NEEDS_V4L2_DEVICE_H
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* EASYCAP_NEEDS_V4L2_FOPS
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*
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* IF REQUIRED THEY MUST BE EXTERNALLY DEFINED, FOR EXAMPLE AS COMPILER
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* OPTIONS.
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*/
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/*---------------------------------------------------------------------------*/
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#if (!defined(EASYCAP_H))
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#define EASYCAP_H
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#if defined(EASYCAP_DEBUG)
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#if (9 < EASYCAP_DEBUG)
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#error Debug levels 0 to 9 are okay.\
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To achieve higher levels, remove this trap manually from easycap.h
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#endif
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#endif /*EASYCAP_DEBUG*/
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/*---------------------------------------------------------------------------*/
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/*
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* THESE ARE FOR MAINTENANCE ONLY - NORMALLY UNDEFINED:
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*/
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/*---------------------------------------------------------------------------*/
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#undef PREFER_NTSC
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#undef EASYCAP_TESTCARD
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#undef EASYCAP_TESTTONE
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#undef LOCKFRAME
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#undef NOREADBACK
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#undef AUDIOTIME
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/*---------------------------------------------------------------------------*/
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/*
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*
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* DEFINE BRIDGER TO ACTIVATE THE ROUTINE FOR BRIDGING VIDEOTAPE DROPOUTS.
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*
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* *** UNDER DEVELOPMENT/TESTING - NOT READY YET!***
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*
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*/
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/*---------------------------------------------------------------------------*/
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#undef BRIDGER
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/*---------------------------------------------------------------------------*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/kref.h>
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#include <linux/smp_lock.h>
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#include <linux/usb.h>
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#include <linux/uaccess.h>
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#include <linux/i2c.h>
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#include <linux/version.h>
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#include <linux/workqueue.h>
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#include <linux/poll.h>
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#include <linux/mm.h>
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#include <linux/fs.h>
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#include <linux/delay.h>
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#include <linux/types.h>
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/*vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/
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#if defined(EASYCAP_IS_VIDEODEV_CLIENT)
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#if (!defined(__OLD_VIDIOC_))
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#define __OLD_VIDIOC_
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#endif /* !defined(__OLD_VIDIOC_) */
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#include <media/v4l2-dev.h>
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#if defined(EASYCAP_NEEDS_V4L2_DEVICE_H)
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#include <media/v4l2-device.h>
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#endif /*EASYCAP_NEEDS_V4L2_DEVICE_H*/
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#endif /*EASYCAP_IS_VIDEODEV_CLIENT*/
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/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
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#if (!defined(__OLD_VIDIOC_))
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#define __OLD_VIDIOC_
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#endif /* !defined(__OLD_VIDIOC_) */
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#include <linux/videodev2.h>
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#include <linux/soundcard.h>
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#if defined(EASYCAP_NEEDS_USBVIDEO_H)
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#include <config/video/usbvideo.h>
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#endif /*EASYCAP_NEEDS_USBVIDEO_H*/
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#if (!defined(PAGE_SIZE))
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#error "PAGE_SIZE not defined"
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#endif
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#define STRINGIZE_AGAIN(x) #x
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#define STRINGIZE(x) STRINGIZE_AGAIN(x)
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/*---------------------------------------------------------------------------*/
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/* VENDOR, PRODUCT: Syntek Semiconductor Co., Ltd
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*
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* EITHER EasyCAP USB 2.0 Video Adapter with Audio, Model No. DC60
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* with input cabling: AUDIO(L), AUDIO(R), CVBS, S-VIDEO.
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*
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* OR EasyCAP 4CHANNEL USB 2.0 DVR, Model No. EasyCAP002
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* with input cabling: MICROPHONE, CVBS1, CVBS2, CVBS3, CVBS4.
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*/
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/*---------------------------------------------------------------------------*/
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#define USB_EASYCAP_VENDOR_ID 0x05e1
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#define USB_EASYCAP_PRODUCT_ID 0x0408
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#define EASYCAP_DRIVER_VERSION "0.8.21"
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#define EASYCAP_DRIVER_DESCRIPTION "easycapdc60"
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#define USB_SKEL_MINOR_BASE 192
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#define VIDEO_DEVICE_MANY 8
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/*---------------------------------------------------------------------------*/
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/*
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* DEFAULT LUMINANCE, CONTRAST, SATURATION AND HUE
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*/
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/*---------------------------------------------------------------------------*/
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#define SAA_0A_DEFAULT 0x7F
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#define SAA_0B_DEFAULT 0x3F
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#define SAA_0C_DEFAULT 0x2F
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#define SAA_0D_DEFAULT 0x00
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/*---------------------------------------------------------------------------*/
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/*
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* VIDEO STREAMING PARAMETERS:
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* USB 2.0 PROVIDES FOR HIGH-BANDWIDTH ENDPOINTS WITH AN UPPER LIMIT
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* OF 3072 BYTES PER MICROFRAME for wMaxPacketSize.
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*/
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/*---------------------------------------------------------------------------*/
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#define VIDEO_ISOC_BUFFER_MANY 16
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#define VIDEO_ISOC_ORDER 3
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#define VIDEO_ISOC_FRAMESPERDESC ((unsigned int) 1 << VIDEO_ISOC_ORDER)
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#define USB_2_0_MAXPACKETSIZE 3072
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#if (USB_2_0_MAXPACKETSIZE > PAGE_SIZE)
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#error video_isoc_buffer[.] will not be big enough
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#endif
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/*---------------------------------------------------------------------------*/
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/*
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* VIDEO BUFFERS
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*/
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/*---------------------------------------------------------------------------*/
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#define FIELD_BUFFER_SIZE (203 * PAGE_SIZE)
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#define FRAME_BUFFER_SIZE (405 * PAGE_SIZE)
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#define FIELD_BUFFER_MANY 4
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#define FRAME_BUFFER_MANY 6
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/*---------------------------------------------------------------------------*/
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/*
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* AUDIO STREAMING PARAMETERS
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*/
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/*---------------------------------------------------------------------------*/
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#define AUDIO_ISOC_BUFFER_MANY 16
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#define AUDIO_ISOC_ORDER 3
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#define AUDIO_ISOC_BUFFER_SIZE (PAGE_SIZE << AUDIO_ISOC_ORDER)
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/*---------------------------------------------------------------------------*/
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/*
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* AUDIO BUFFERS
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*/
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/*---------------------------------------------------------------------------*/
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#define AUDIO_FRAGMENT_MANY 32
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/*---------------------------------------------------------------------------*/
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/*
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* IT IS ESSENTIAL THAT EVEN-NUMBERED STANDARDS ARE 25 FRAMES PER SECOND,
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* ODD-NUMBERED STANDARDS ARE 30 FRAMES PER SECOND.
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* THE NUMBERING OF STANDARDS MUST NOT BE CHANGED WITHOUT DUE CARE. NOT
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* ONLY MUST THE PARAMETER
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* STANDARD_MANY
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* BE CHANGED TO CORRESPOND TO THE NEW NUMBER OF STANDARDS, BUT ALSO THE
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* NUMBERING MUST REMAIN AN UNBROKEN ASCENDING SEQUENCE: DUMMY STANDARDS
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* MAY NEED TO BE ADDED. APPROPRIATE CHANGES WILL ALWAYS BE REQUIRED IN
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* ROUTINE fillin_formats() AND POSSIBLY ELSEWHERE. BEWARE.
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*/
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/*---------------------------------------------------------------------------*/
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#define PAL_BGHIN 0
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#define PAL_Nc 2
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#define SECAM 4
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#define NTSC_N 6
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#define NTSC_N_443 8
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#define NTSC_M 1
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#define NTSC_443 3
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#define NTSC_M_JP 5
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#define PAL_60 7
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#define PAL_M 9
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#define STANDARD_MANY 10
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/*---------------------------------------------------------------------------*/
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/*
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* ENUMS
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*/
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/*---------------------------------------------------------------------------*/
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enum {
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AT_720x576,
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AT_704x576,
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AT_640x480,
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AT_720x480,
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AT_360x288,
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AT_320x240,
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AT_360x240,
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RESOLUTION_MANY
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};
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enum {
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FMT_UYVY,
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FMT_YUY2,
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FMT_RGB24,
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FMT_RGB32,
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FMT_BGR24,
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FMT_BGR32,
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PIXELFORMAT_MANY
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};
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enum {
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FIELD_NONE,
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FIELD_INTERLACED,
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FIELD_ALTERNATE,
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INTERLACE_MANY
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};
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#define SETTINGS_MANY (STANDARD_MANY * \
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RESOLUTION_MANY * \
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2 * \
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PIXELFORMAT_MANY * \
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INTERLACE_MANY)
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/*---------------------------------------------------------------------------*/
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/*
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* STRUCTURE DEFINITIONS
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*/
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/*---------------------------------------------------------------------------*/
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struct data_buffer {
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struct list_head list_head;
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void *pgo;
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void *pto;
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__u16 kount;
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};
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/*---------------------------------------------------------------------------*/
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struct data_urb {
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struct list_head list_head;
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struct urb *purb;
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int isbuf;
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int length;
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};
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/*---------------------------------------------------------------------------*/
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struct easycap_standard {
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__u16 mask;
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struct v4l2_standard v4l2_standard;
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};
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struct easycap_format {
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__u16 mask;
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char name[128];
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struct v4l2_format v4l2_format;
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};
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/*---------------------------------------------------------------------------*/
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/*
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* easycap.ilk == 0 => CVBS+S-VIDEO HARDWARE, AUDIO wMaxPacketSize=256
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* easycap.ilk == 2 => CVBS+S-VIDEO HARDWARE, AUDIO wMaxPacketSize=9
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* easycap.ilk == 3 => FOUR-CVBS HARDWARE, AUDIO wMaxPacketSize=9
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*/
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/*---------------------------------------------------------------------------*/
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struct easycap {
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unsigned int audio_pages_per_fragment;
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unsigned int audio_bytes_per_fragment;
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unsigned int audio_buffer_page_many;
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#define UPSAMPLE
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#if defined(UPSAMPLE)
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__s16 oldaudio;
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#endif /*UPSAMPLE*/
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struct easycap_format easycap_format[1 + SETTINGS_MANY];
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int ilk;
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bool microphone;
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/*vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/
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#if defined(EASYCAP_IS_VIDEODEV_CLIENT)
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struct video_device *pvideo_device;
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#endif /*EASYCAP_IS_VIDEODEV_CLIENT*/
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/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
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struct usb_device *pusb_device;
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struct usb_interface *pusb_interface;
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struct kref kref;
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struct mutex mutex_mmap_video[FRAME_BUFFER_MANY];
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struct mutex mutex_timeval0;
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struct mutex mutex_timeval1;
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int queued[FRAME_BUFFER_MANY];
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int done[FRAME_BUFFER_MANY];
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wait_queue_head_t wq_video;
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wait_queue_head_t wq_audio;
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int input;
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int polled;
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int standard_offset;
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int format_offset;
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int fps;
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int usec;
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int tolerate;
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int merit[180];
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struct timeval timeval0;
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struct timeval timeval1;
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struct timeval timeval2;
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struct timeval timeval7;
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long long int dnbydt;
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int video_interface;
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int video_altsetting_on;
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int video_altsetting_off;
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int video_endpointnumber;
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int video_isoc_maxframesize;
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int video_isoc_buffer_size;
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int video_isoc_framesperdesc;
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int video_isoc_streaming;
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int video_isoc_sequence;
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int video_idle;
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int video_eof;
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int video_junk;
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int fudge;
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struct data_buffer video_isoc_buffer[VIDEO_ISOC_BUFFER_MANY];
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struct data_buffer \
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field_buffer[FIELD_BUFFER_MANY][(FIELD_BUFFER_SIZE/PAGE_SIZE)];
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struct data_buffer \
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frame_buffer[FRAME_BUFFER_MANY][(FRAME_BUFFER_SIZE/PAGE_SIZE)];
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struct list_head urb_video_head;
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struct list_head *purb_video_head;
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int vma_many;
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/*---------------------------------------------------------------------------*/
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/*
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* BUFFER INDICATORS
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*/
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/*---------------------------------------------------------------------------*/
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int field_fill; /* Field buffer being filled by easycap_complete(). */
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/* Bumped only by easycap_complete(). */
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int field_page; /* Page of field buffer page being filled by */
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/* easycap_complete(). */
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int field_read; /* Field buffer to be read by field2frame(). */
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/* Bumped only by easycap_complete(). */
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int frame_fill; /* Frame buffer being filled by field2frame(). */
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/* Bumped only by easycap_dqbuf() when */
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/* field2frame() has created a complete frame. */
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int frame_read; /* Frame buffer offered to user by DQBUF. */
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/* Set only by easycap_dqbuf() to trail frame_fill.*/
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int frame_lock; /* Flag set to 1 by DQBUF and cleared by QBUF */
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/*---------------------------------------------------------------------------*/
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/*
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* IMAGE PROPERTIES
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*/
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/*---------------------------------------------------------------------------*/
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__u32 pixelformat;
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__u32 field;
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int width;
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int height;
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int bytesperpixel;
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bool byteswaporder;
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bool decimatepixel;
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bool offerfields;
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int frame_buffer_used;
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int frame_buffer_many;
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int videofieldamount;
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int brightness;
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int contrast;
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int saturation;
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int hue;
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int allocation_video_urb;
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int allocation_video_page;
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int allocation_video_struct;
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int registered_video;
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/*---------------------------------------------------------------------------*/
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/*
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* SOUND PROPERTIES
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*/
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/*---------------------------------------------------------------------------*/
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int audio_interface;
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int audio_altsetting_on;
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int audio_altsetting_off;
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int audio_endpointnumber;
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int audio_isoc_maxframesize;
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int audio_isoc_buffer_size;
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int audio_isoc_framesperdesc;
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int audio_isoc_streaming;
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int audio_idle;
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int audio_eof;
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int volume;
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int mute;
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struct data_buffer audio_isoc_buffer[AUDIO_ISOC_BUFFER_MANY];
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struct list_head urb_audio_head;
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struct list_head *purb_audio_head;
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/*---------------------------------------------------------------------------*/
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/*
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* BUFFER INDICATORS
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*/
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/*---------------------------------------------------------------------------*/
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int audio_fill; /* Audio buffer being filled by easysnd_complete(). */
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/* Bumped only by easysnd_complete(). */
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int audio_read; /* Audio buffer page being read by easysnd_read(). */
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/* Set by easysnd_read() to trail audio_fill by */
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/* one fragment. */
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/*---------------------------------------------------------------------------*/
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/*
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* SOUND PROPERTIES
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*/
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/*---------------------------------------------------------------------------*/
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int audio_buffer_many;
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int allocation_audio_urb;
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int allocation_audio_page;
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int allocation_audio_struct;
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int registered_audio;
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long long int audio_sample;
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long long int audio_niveau;
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long long int audio_square;
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struct data_buffer audio_buffer[];
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};
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/*---------------------------------------------------------------------------*/
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/*
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* VIDEO FUNCTION PROTOTYPES
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*/
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/*---------------------------------------------------------------------------*/
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void easycap_complete(struct urb *);
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int easycap_open(struct inode *, struct file *);
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int easycap_release(struct inode *, struct file *);
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long easycap_ioctl(struct file *, unsigned int, unsigned long);
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/*vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/
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#if defined(EASYCAP_IS_VIDEODEV_CLIENT)
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int easycap_open_noinode(struct file *);
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int easycap_release_noinode(struct file *);
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int videodev_release(struct video_device *);
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#endif /*EASYCAP_IS_VIDEODEV_CLIENT*/
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/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
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unsigned int easycap_poll(struct file *, poll_table *);
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int easycap_mmap(struct file *, struct vm_area_struct *);
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int easycap_usb_probe(struct usb_interface *, \
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const struct usb_device_id *);
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void easycap_usb_disconnect(struct usb_interface *);
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void easycap_delete(struct kref *);
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void easycap_vma_open(struct vm_area_struct *);
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void easycap_vma_close(struct vm_area_struct *);
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int easycap_vma_fault(struct vm_area_struct *, struct vm_fault *);
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int easycap_dqbuf(struct easycap *, int);
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int submit_video_urbs(struct easycap *);
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int kill_video_urbs(struct easycap *);
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int field2frame(struct easycap *);
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int redaub(struct easycap *, void *, void *, \
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int, int, __u8, __u8, bool);
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void debrief(struct easycap *);
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void sayreadonly(struct easycap *);
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void easycap_testcard(struct easycap *, int);
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int explain_ioctl(__u32);
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int explain_cid(__u32);
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int fillin_formats(void);
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int adjust_standard(struct easycap *, v4l2_std_id);
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int adjust_format(struct easycap *, __u32, __u32, __u32, \
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int, bool);
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int adjust_brightness(struct easycap *, int);
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int adjust_contrast(struct easycap *, int);
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int adjust_saturation(struct easycap *, int);
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int adjust_hue(struct easycap *, int);
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int adjust_volume(struct easycap *, int);
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/*---------------------------------------------------------------------------*/
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/*
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* AUDIO FUNCTION PROTOTYPES
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*/
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/*---------------------------------------------------------------------------*/
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void easysnd_complete(struct urb *);
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ssize_t easysnd_read(struct file *, char __user *, size_t, loff_t *);
|
|
int easysnd_open(struct inode *, struct file *);
|
|
int easysnd_release(struct inode *, struct file *);
|
|
long easysnd_ioctl(struct file *, unsigned int, unsigned long);
|
|
unsigned int easysnd_poll(struct file *, poll_table *);
|
|
void easysnd_delete(struct kref *);
|
|
int submit_audio_urbs(struct easycap *);
|
|
int kill_audio_urbs(struct easycap *);
|
|
void easysnd_testtone(struct easycap *, int);
|
|
int audio_setup(struct easycap *);
|
|
/*---------------------------------------------------------------------------*/
|
|
/*
|
|
* LOW-LEVEL FUNCTION PROTOTYPES
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
int audio_gainget(struct usb_device *);
|
|
int audio_gainset(struct usb_device *, __s8);
|
|
|
|
int set_interface(struct usb_device *, __u16);
|
|
int wakeup_device(struct usb_device *);
|
|
int confirm_resolution(struct usb_device *);
|
|
int confirm_stream(struct usb_device *);
|
|
|
|
int setup_stk(struct usb_device *);
|
|
int setup_saa(struct usb_device *);
|
|
int setup_vt(struct usb_device *);
|
|
int check_stk(struct usb_device *);
|
|
int check_saa(struct usb_device *);
|
|
int ready_saa(struct usb_device *);
|
|
int merit_saa(struct usb_device *);
|
|
int check_vt(struct usb_device *);
|
|
int select_input(struct usb_device *, int, int);
|
|
int set_resolution(struct usb_device *, \
|
|
__u16, __u16, __u16, __u16);
|
|
|
|
int read_saa(struct usb_device *, __u16);
|
|
int read_stk(struct usb_device *, __u32);
|
|
int write_saa(struct usb_device *, __u16, __u16);
|
|
int wait_i2c(struct usb_device *);
|
|
int write_000(struct usb_device *, __u16, __u16);
|
|
int start_100(struct usb_device *);
|
|
int stop_100(struct usb_device *);
|
|
int write_300(struct usb_device *);
|
|
int read_vt(struct usb_device *, __u16);
|
|
int write_vt(struct usb_device *, __u16, __u16);
|
|
|
|
int set2to78(struct usb_device *);
|
|
int set2to93(struct usb_device *);
|
|
|
|
int regset(struct usb_device *, __u16, __u16);
|
|
int regget(struct usb_device *, __u16, void *);
|
|
/*---------------------------------------------------------------------------*/
|
|
struct signed_div_result {
|
|
long long int quotient;
|
|
unsigned long long int remainder;
|
|
} signed_div(long long int, long long int);
|
|
/*---------------------------------------------------------------------------*/
|
|
/*
|
|
* MACROS
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
#define GET(X, Y, Z) do { \
|
|
int rc; \
|
|
*(Z) = (__u16)0; \
|
|
rc = regget(X, Y, Z); \
|
|
if (0 > rc) { \
|
|
JOT(8, ":-(%i\n", __LINE__); return(rc); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define SET(X, Y, Z) do { \
|
|
int rc; \
|
|
rc = regset(X, Y, Z); \
|
|
if (0 > rc) { \
|
|
JOT(8, ":-(%i\n", __LINE__); return(rc); \
|
|
} \
|
|
} while (0)
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
#define SAY(format, args...) do { \
|
|
printk(KERN_DEBUG "easycap: %s: " format, __func__, ##args); \
|
|
} while (0)
|
|
|
|
|
|
#if defined(EASYCAP_DEBUG)
|
|
#define JOT(n, format, args...) do { \
|
|
if (n <= easycap_debug) { \
|
|
printk(KERN_DEBUG "easycap: %s: " format, __func__, ##args); \
|
|
} \
|
|
} while (0)
|
|
#else
|
|
#define JOT(n, format, args...) do {} while (0)
|
|
#endif /*EASYCAP_DEBUG*/
|
|
|
|
#define POUT JOT(8, ":-(in file %s line %4i\n", __FILE__, __LINE__)
|
|
|
|
#define MICROSECONDS(X, Y) \
|
|
((1000000*((long long int)(X.tv_sec - Y.tv_sec))) + \
|
|
(long long int)(X.tv_usec - Y.tv_usec))
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/*
|
|
* (unsigned char *)P pointer to next byte pair
|
|
* (long int *)X pointer to accumulating count
|
|
* (long int *)Y pointer to accumulating sum
|
|
* (long long int *)Z pointer to accumulating sum of squares
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
#define SUMMER(P, X, Y, Z) do { \
|
|
unsigned char *p; \
|
|
unsigned int u0, u1, u2; \
|
|
long int s; \
|
|
p = (unsigned char *)(P); \
|
|
u0 = (unsigned int) (*p); \
|
|
u1 = (unsigned int) (*(p + 1)); \
|
|
u2 = (unsigned int) ((u1 << 8) | u0); \
|
|
if (0x8000 & u2) \
|
|
s = -(long int)(0x7FFF & (~u2)); \
|
|
else \
|
|
s = (long int)(0x7FFF & u2); \
|
|
*((X)) += (long int) 1; \
|
|
*((Y)) += (long int) s; \
|
|
*((Z)) += ((long long int)(s) * (long long int)(s)); \
|
|
} while (0)
|
|
/*---------------------------------------------------------------------------*/
|
|
|
|
#endif /*EASYCAP_H*/
|