1903 lines
54 KiB
C
1903 lines
54 KiB
C
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/*
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* cpia CPiA (1) gspca driver
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*
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* Copyright (C) 2010-2011 Hans de Goede <hdegoede@redhat.com>
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*
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* This module is adapted from the in kernel v4l1 cpia driver which is :
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*
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* (C) Copyright 1999-2000 Peter Pregler
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* (C) Copyright 1999-2000 Scott J. Bertin
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* (C) Copyright 1999-2000 Johannes Erdfelt <johannes@erdfelt.com>
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* (C) Copyright 2000 STMicroelectronics
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define MODULE_NAME "cpia1"
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#include <linux/input.h>
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#include "gspca.h"
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MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
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MODULE_DESCRIPTION("Vision CPiA");
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MODULE_LICENSE("GPL");
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/* constant value's */
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#define MAGIC_0 0x19
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#define MAGIC_1 0x68
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#define DATA_IN 0xc0
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#define DATA_OUT 0x40
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#define VIDEOSIZE_QCIF 0 /* 176x144 */
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#define VIDEOSIZE_CIF 1 /* 352x288 */
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#define SUBSAMPLE_420 0
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#define SUBSAMPLE_422 1
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#define YUVORDER_YUYV 0
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#define YUVORDER_UYVY 1
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#define NOT_COMPRESSED 0
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#define COMPRESSED 1
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#define NO_DECIMATION 0
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#define DECIMATION_ENAB 1
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#define EOI 0xff /* End Of Image */
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#define EOL 0xfd /* End Of Line */
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#define FRAME_HEADER_SIZE 64
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/* Image grab modes */
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#define CPIA_GRAB_SINGLE 0
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#define CPIA_GRAB_CONTINEOUS 1
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/* Compression parameters */
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#define CPIA_COMPRESSION_NONE 0
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#define CPIA_COMPRESSION_AUTO 1
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#define CPIA_COMPRESSION_MANUAL 2
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#define CPIA_COMPRESSION_TARGET_QUALITY 0
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#define CPIA_COMPRESSION_TARGET_FRAMERATE 1
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/* Return offsets for GetCameraState */
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#define SYSTEMSTATE 0
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#define GRABSTATE 1
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#define STREAMSTATE 2
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#define FATALERROR 3
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#define CMDERROR 4
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#define DEBUGFLAGS 5
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#define VPSTATUS 6
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#define ERRORCODE 7
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/* SystemState */
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#define UNINITIALISED_STATE 0
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#define PASS_THROUGH_STATE 1
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#define LO_POWER_STATE 2
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#define HI_POWER_STATE 3
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#define WARM_BOOT_STATE 4
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/* GrabState */
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#define GRAB_IDLE 0
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#define GRAB_ACTIVE 1
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#define GRAB_DONE 2
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/* StreamState */
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#define STREAM_NOT_READY 0
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#define STREAM_READY 1
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#define STREAM_OPEN 2
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#define STREAM_PAUSED 3
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#define STREAM_FINISHED 4
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/* Fatal Error, CmdError, and DebugFlags */
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#define CPIA_FLAG 1
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#define SYSTEM_FLAG 2
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#define INT_CTRL_FLAG 4
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#define PROCESS_FLAG 8
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#define COM_FLAG 16
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#define VP_CTRL_FLAG 32
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#define CAPTURE_FLAG 64
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#define DEBUG_FLAG 128
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/* VPStatus */
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#define VP_STATE_OK 0x00
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#define VP_STATE_FAILED_VIDEOINIT 0x01
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#define VP_STATE_FAILED_AECACBINIT 0x02
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#define VP_STATE_AEC_MAX 0x04
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#define VP_STATE_ACB_BMAX 0x08
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#define VP_STATE_ACB_RMIN 0x10
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#define VP_STATE_ACB_GMIN 0x20
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#define VP_STATE_ACB_RMAX 0x40
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#define VP_STATE_ACB_GMAX 0x80
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/* default (minimum) compensation values */
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#define COMP_RED 220
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#define COMP_GREEN1 214
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#define COMP_GREEN2 COMP_GREEN1
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#define COMP_BLUE 230
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/* exposure status */
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#define EXPOSURE_VERY_LIGHT 0
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#define EXPOSURE_LIGHT 1
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#define EXPOSURE_NORMAL 2
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#define EXPOSURE_DARK 3
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#define EXPOSURE_VERY_DARK 4
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#define CPIA_MODULE_CPIA (0 << 5)
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#define CPIA_MODULE_SYSTEM (1 << 5)
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#define CPIA_MODULE_VP_CTRL (5 << 5)
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#define CPIA_MODULE_CAPTURE (6 << 5)
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#define CPIA_MODULE_DEBUG (7 << 5)
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#define INPUT (DATA_IN << 8)
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#define OUTPUT (DATA_OUT << 8)
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#define CPIA_COMMAND_GetCPIAVersion (INPUT | CPIA_MODULE_CPIA | 1)
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#define CPIA_COMMAND_GetPnPID (INPUT | CPIA_MODULE_CPIA | 2)
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#define CPIA_COMMAND_GetCameraStatus (INPUT | CPIA_MODULE_CPIA | 3)
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#define CPIA_COMMAND_GotoHiPower (OUTPUT | CPIA_MODULE_CPIA | 4)
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#define CPIA_COMMAND_GotoLoPower (OUTPUT | CPIA_MODULE_CPIA | 5)
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#define CPIA_COMMAND_GotoSuspend (OUTPUT | CPIA_MODULE_CPIA | 7)
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#define CPIA_COMMAND_GotoPassThrough (OUTPUT | CPIA_MODULE_CPIA | 8)
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#define CPIA_COMMAND_ModifyCameraStatus (OUTPUT | CPIA_MODULE_CPIA | 10)
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#define CPIA_COMMAND_ReadVCRegs (INPUT | CPIA_MODULE_SYSTEM | 1)
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#define CPIA_COMMAND_WriteVCReg (OUTPUT | CPIA_MODULE_SYSTEM | 2)
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#define CPIA_COMMAND_ReadMCPorts (INPUT | CPIA_MODULE_SYSTEM | 3)
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#define CPIA_COMMAND_WriteMCPort (OUTPUT | CPIA_MODULE_SYSTEM | 4)
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#define CPIA_COMMAND_SetBaudRate (OUTPUT | CPIA_MODULE_SYSTEM | 5)
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#define CPIA_COMMAND_SetECPTiming (OUTPUT | CPIA_MODULE_SYSTEM | 6)
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#define CPIA_COMMAND_ReadIDATA (INPUT | CPIA_MODULE_SYSTEM | 7)
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#define CPIA_COMMAND_WriteIDATA (OUTPUT | CPIA_MODULE_SYSTEM | 8)
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#define CPIA_COMMAND_GenericCall (OUTPUT | CPIA_MODULE_SYSTEM | 9)
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#define CPIA_COMMAND_I2CStart (OUTPUT | CPIA_MODULE_SYSTEM | 10)
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#define CPIA_COMMAND_I2CStop (OUTPUT | CPIA_MODULE_SYSTEM | 11)
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#define CPIA_COMMAND_I2CWrite (OUTPUT | CPIA_MODULE_SYSTEM | 12)
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#define CPIA_COMMAND_I2CRead (INPUT | CPIA_MODULE_SYSTEM | 13)
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#define CPIA_COMMAND_GetVPVersion (INPUT | CPIA_MODULE_VP_CTRL | 1)
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#define CPIA_COMMAND_ResetFrameCounter (INPUT | CPIA_MODULE_VP_CTRL | 2)
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#define CPIA_COMMAND_SetColourParams (OUTPUT | CPIA_MODULE_VP_CTRL | 3)
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#define CPIA_COMMAND_SetExposure (OUTPUT | CPIA_MODULE_VP_CTRL | 4)
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#define CPIA_COMMAND_SetColourBalance (OUTPUT | CPIA_MODULE_VP_CTRL | 6)
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#define CPIA_COMMAND_SetSensorFPS (OUTPUT | CPIA_MODULE_VP_CTRL | 7)
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#define CPIA_COMMAND_SetVPDefaults (OUTPUT | CPIA_MODULE_VP_CTRL | 8)
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#define CPIA_COMMAND_SetApcor (OUTPUT | CPIA_MODULE_VP_CTRL | 9)
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#define CPIA_COMMAND_SetFlickerCtrl (OUTPUT | CPIA_MODULE_VP_CTRL | 10)
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#define CPIA_COMMAND_SetVLOffset (OUTPUT | CPIA_MODULE_VP_CTRL | 11)
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#define CPIA_COMMAND_GetColourParams (INPUT | CPIA_MODULE_VP_CTRL | 16)
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#define CPIA_COMMAND_GetColourBalance (INPUT | CPIA_MODULE_VP_CTRL | 17)
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#define CPIA_COMMAND_GetExposure (INPUT | CPIA_MODULE_VP_CTRL | 18)
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#define CPIA_COMMAND_SetSensorMatrix (OUTPUT | CPIA_MODULE_VP_CTRL | 19)
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#define CPIA_COMMAND_ColourBars (OUTPUT | CPIA_MODULE_VP_CTRL | 25)
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#define CPIA_COMMAND_ReadVPRegs (INPUT | CPIA_MODULE_VP_CTRL | 30)
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#define CPIA_COMMAND_WriteVPReg (OUTPUT | CPIA_MODULE_VP_CTRL | 31)
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#define CPIA_COMMAND_GrabFrame (OUTPUT | CPIA_MODULE_CAPTURE | 1)
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#define CPIA_COMMAND_UploadFrame (OUTPUT | CPIA_MODULE_CAPTURE | 2)
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#define CPIA_COMMAND_SetGrabMode (OUTPUT | CPIA_MODULE_CAPTURE | 3)
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#define CPIA_COMMAND_InitStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 4)
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#define CPIA_COMMAND_FiniStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 5)
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#define CPIA_COMMAND_StartStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 6)
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#define CPIA_COMMAND_EndStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 7)
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#define CPIA_COMMAND_SetFormat (OUTPUT | CPIA_MODULE_CAPTURE | 8)
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#define CPIA_COMMAND_SetROI (OUTPUT | CPIA_MODULE_CAPTURE | 9)
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#define CPIA_COMMAND_SetCompression (OUTPUT | CPIA_MODULE_CAPTURE | 10)
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#define CPIA_COMMAND_SetCompressionTarget (OUTPUT | CPIA_MODULE_CAPTURE | 11)
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#define CPIA_COMMAND_SetYUVThresh (OUTPUT | CPIA_MODULE_CAPTURE | 12)
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#define CPIA_COMMAND_SetCompressionParams (OUTPUT | CPIA_MODULE_CAPTURE | 13)
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#define CPIA_COMMAND_DiscardFrame (OUTPUT | CPIA_MODULE_CAPTURE | 14)
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#define CPIA_COMMAND_GrabReset (OUTPUT | CPIA_MODULE_CAPTURE | 15)
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#define CPIA_COMMAND_OutputRS232 (OUTPUT | CPIA_MODULE_DEBUG | 1)
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#define CPIA_COMMAND_AbortProcess (OUTPUT | CPIA_MODULE_DEBUG | 4)
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#define CPIA_COMMAND_SetDramPage (OUTPUT | CPIA_MODULE_DEBUG | 5)
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#define CPIA_COMMAND_StartDramUpload (OUTPUT | CPIA_MODULE_DEBUG | 6)
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#define CPIA_COMMAND_StartDummyDtream (OUTPUT | CPIA_MODULE_DEBUG | 8)
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#define CPIA_COMMAND_AbortStream (OUTPUT | CPIA_MODULE_DEBUG | 9)
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#define CPIA_COMMAND_DownloadDRAM (OUTPUT | CPIA_MODULE_DEBUG | 10)
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#define CPIA_COMMAND_Null (OUTPUT | CPIA_MODULE_DEBUG | 11)
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#define ROUND_UP_EXP_FOR_FLICKER 15
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/* Constants for automatic frame rate adjustment */
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#define MAX_EXP 302
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#define MAX_EXP_102 255
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#define LOW_EXP 140
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#define VERY_LOW_EXP 70
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#define TC 94
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#define EXP_ACC_DARK 50
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#define EXP_ACC_LIGHT 90
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#define HIGH_COMP_102 160
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#define MAX_COMP 239
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#define DARK_TIME 3
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#define LIGHT_TIME 3
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#define FIRMWARE_VERSION(x, y) (sd->params.version.firmwareVersion == (x) && \
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sd->params.version.firmwareRevision == (y))
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#define CPIA1_CID_COMP_TARGET (V4L2_CTRL_CLASS_USER + 0x1000)
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#define BRIGHTNESS_DEF 50
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#define CONTRAST_DEF 48
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#define SATURATION_DEF 50
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#define FREQ_DEF V4L2_CID_POWER_LINE_FREQUENCY_50HZ
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#define ILLUMINATORS_1_DEF 0
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#define ILLUMINATORS_2_DEF 0
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#define COMP_TARGET_DEF CPIA_COMPRESSION_TARGET_QUALITY
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/* Developer's Guide Table 5 p 3-34
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* indexed by [mains][sensorFps.baserate][sensorFps.divisor]*/
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static u8 flicker_jumps[2][2][4] =
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{ { { 76, 38, 19, 9 }, { 92, 46, 23, 11 } },
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{ { 64, 32, 16, 8 }, { 76, 38, 19, 9} }
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};
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struct cam_params {
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struct {
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u8 firmwareVersion;
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u8 firmwareRevision;
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u8 vcVersion;
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u8 vcRevision;
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} version;
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struct {
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u16 vendor;
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u16 product;
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u16 deviceRevision;
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} pnpID;
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struct {
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u8 vpVersion;
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u8 vpRevision;
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u16 cameraHeadID;
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} vpVersion;
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struct {
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u8 systemState;
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u8 grabState;
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u8 streamState;
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u8 fatalError;
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u8 cmdError;
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u8 debugFlags;
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u8 vpStatus;
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u8 errorCode;
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} status;
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struct {
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u8 brightness;
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u8 contrast;
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u8 saturation;
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} colourParams;
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struct {
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u8 gainMode;
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u8 expMode;
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u8 compMode;
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u8 centreWeight;
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u8 gain;
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u8 fineExp;
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u8 coarseExpLo;
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u8 coarseExpHi;
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u8 redComp;
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u8 green1Comp;
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u8 green2Comp;
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u8 blueComp;
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} exposure;
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struct {
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u8 balanceMode;
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u8 redGain;
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u8 greenGain;
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u8 blueGain;
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} colourBalance;
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struct {
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u8 divisor;
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u8 baserate;
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} sensorFps;
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struct {
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u8 gain1;
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u8 gain2;
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u8 gain4;
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u8 gain8;
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} apcor;
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struct {
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u8 disabled;
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u8 flickerMode;
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u8 coarseJump;
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u8 allowableOverExposure;
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} flickerControl;
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struct {
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u8 gain1;
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u8 gain2;
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u8 gain4;
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u8 gain8;
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} vlOffset;
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struct {
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u8 mode;
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u8 decimation;
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} compression;
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struct {
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u8 frTargeting;
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u8 targetFR;
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u8 targetQ;
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} compressionTarget;
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struct {
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u8 yThreshold;
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u8 uvThreshold;
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} yuvThreshold;
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struct {
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u8 hysteresis;
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u8 threshMax;
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u8 smallStep;
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u8 largeStep;
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u8 decimationHysteresis;
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u8 frDiffStepThresh;
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u8 qDiffStepThresh;
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u8 decimationThreshMod;
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} compressionParams;
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struct {
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u8 videoSize; /* CIF/QCIF */
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u8 subSample;
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u8 yuvOrder;
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} format;
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struct { /* Intel QX3 specific data */
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u8 qx3_detected; /* a QX3 is present */
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u8 toplight; /* top light lit , R/W */
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u8 bottomlight; /* bottom light lit, R/W */
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u8 button; /* snapshot button pressed (R/O) */
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u8 cradled; /* microscope is in cradle (R/O) */
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} qx3;
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struct {
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u8 colStart; /* skip first 8*colStart pixels */
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u8 colEnd; /* finish at 8*colEnd pixels */
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u8 rowStart; /* skip first 4*rowStart lines */
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u8 rowEnd; /* finish at 4*rowEnd lines */
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} roi;
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u8 ecpTiming;
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u8 streamStartLine;
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};
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/* specific webcam descriptor */
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struct sd {
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struct gspca_dev gspca_dev; /* !! must be the first item */
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struct cam_params params; /* camera settings */
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atomic_t cam_exposure;
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atomic_t fps;
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int exposure_count;
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u8 exposure_status;
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struct v4l2_ctrl *freq;
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u8 mainsFreq; /* 0 = 50hz, 1 = 60hz */
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u8 first_frame;
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};
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static const struct v4l2_pix_format mode[] = {
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{160, 120, V4L2_PIX_FMT_CPIA1, V4L2_FIELD_NONE,
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/* The sizeimage is trial and error, as with low framerates
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the camera will pad out usb frames, making the image
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data larger then strictly necessary */
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.bytesperline = 160,
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.sizeimage = 65536,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 3},
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{176, 144, V4L2_PIX_FMT_CPIA1, V4L2_FIELD_NONE,
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.bytesperline = 172,
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|
.sizeimage = 65536,
|
||
|
.colorspace = V4L2_COLORSPACE_SRGB,
|
||
|
.priv = 2},
|
||
|
{320, 240, V4L2_PIX_FMT_CPIA1, V4L2_FIELD_NONE,
|
||
|
.bytesperline = 320,
|
||
|
.sizeimage = 262144,
|
||
|
.colorspace = V4L2_COLORSPACE_SRGB,
|
||
|
.priv = 1},
|
||
|
{352, 288, V4L2_PIX_FMT_CPIA1, V4L2_FIELD_NONE,
|
||
|
.bytesperline = 352,
|
||
|
.sizeimage = 262144,
|
||
|
.colorspace = V4L2_COLORSPACE_SRGB,
|
||
|
.priv = 0},
|
||
|
};
|
||
|
|
||
|
/**********************************************************************
|
||
|
*
|
||
|
* General functions
|
||
|
*
|
||
|
**********************************************************************/
|
||
|
|
||
|
static int cpia_usb_transferCmd(struct gspca_dev *gspca_dev, u8 *command)
|
||
|
{
|
||
|
u8 requesttype;
|
||
|
unsigned int pipe;
|
||
|
int ret, databytes = command[6] | (command[7] << 8);
|
||
|
/* Sometimes we see spurious EPIPE errors */
|
||
|
int retries = 3;
|
||
|
|
||
|
if (command[0] == DATA_IN) {
|
||
|
pipe = usb_rcvctrlpipe(gspca_dev->dev, 0);
|
||
|
requesttype = USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
|
||
|
} else if (command[0] == DATA_OUT) {
|
||
|
pipe = usb_sndctrlpipe(gspca_dev->dev, 0);
|
||
|
requesttype = USB_TYPE_VENDOR | USB_RECIP_DEVICE;
|
||
|
} else {
|
||
|
PERR("Unexpected first byte of command: %x", command[0]);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
retry:
|
||
|
ret = usb_control_msg(gspca_dev->dev, pipe,
|
||
|
command[1],
|
||
|
requesttype,
|
||
|
command[2] | (command[3] << 8),
|
||
|
command[4] | (command[5] << 8),
|
||
|
gspca_dev->usb_buf, databytes, 1000);
|
||
|
|
||
|
if (ret < 0)
|
||
|
pr_err("usb_control_msg %02x, error %d\n", command[1], ret);
|
||
|
|
||
|
if (ret == -EPIPE && retries > 0) {
|
||
|
retries--;
|
||
|
goto retry;
|
||
|
}
|
||
|
|
||
|
return (ret < 0) ? ret : 0;
|
||
|
}
|
||
|
|
||
|
/* send an arbitrary command to the camera */
|
||
|
static int do_command(struct gspca_dev *gspca_dev, u16 command,
|
||
|
u8 a, u8 b, u8 c, u8 d)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int ret, datasize;
|
||
|
u8 cmd[8];
|
||
|
|
||
|
switch (command) {
|
||
|
case CPIA_COMMAND_GetCPIAVersion:
|
||
|
case CPIA_COMMAND_GetPnPID:
|
||
|
case CPIA_COMMAND_GetCameraStatus:
|
||
|
case CPIA_COMMAND_GetVPVersion:
|
||
|
case CPIA_COMMAND_GetColourParams:
|
||
|
case CPIA_COMMAND_GetColourBalance:
|
||
|
case CPIA_COMMAND_GetExposure:
|
||
|
datasize = 8;
|
||
|
break;
|
||
|
case CPIA_COMMAND_ReadMCPorts:
|
||
|
case CPIA_COMMAND_ReadVCRegs:
|
||
|
datasize = 4;
|
||
|
break;
|
||
|
default:
|
||
|
datasize = 0;
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
cmd[0] = command >> 8;
|
||
|
cmd[1] = command & 0xff;
|
||
|
cmd[2] = a;
|
||
|
cmd[3] = b;
|
||
|
cmd[4] = c;
|
||
|
cmd[5] = d;
|
||
|
cmd[6] = datasize;
|
||
|
cmd[7] = 0;
|
||
|
|
||
|
ret = cpia_usb_transferCmd(gspca_dev, cmd);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
switch (command) {
|
||
|
case CPIA_COMMAND_GetCPIAVersion:
|
||
|
sd->params.version.firmwareVersion = gspca_dev->usb_buf[0];
|
||
|
sd->params.version.firmwareRevision = gspca_dev->usb_buf[1];
|
||
|
sd->params.version.vcVersion = gspca_dev->usb_buf[2];
|
||
|
sd->params.version.vcRevision = gspca_dev->usb_buf[3];
|
||
|
break;
|
||
|
case CPIA_COMMAND_GetPnPID:
|
||
|
sd->params.pnpID.vendor =
|
||
|
gspca_dev->usb_buf[0] | (gspca_dev->usb_buf[1] << 8);
|
||
|
sd->params.pnpID.product =
|
||
|
gspca_dev->usb_buf[2] | (gspca_dev->usb_buf[3] << 8);
|
||
|
sd->params.pnpID.deviceRevision =
|
||
|
gspca_dev->usb_buf[4] | (gspca_dev->usb_buf[5] << 8);
|
||
|
break;
|
||
|
case CPIA_COMMAND_GetCameraStatus:
|
||
|
sd->params.status.systemState = gspca_dev->usb_buf[0];
|
||
|
sd->params.status.grabState = gspca_dev->usb_buf[1];
|
||
|
sd->params.status.streamState = gspca_dev->usb_buf[2];
|
||
|
sd->params.status.fatalError = gspca_dev->usb_buf[3];
|
||
|
sd->params.status.cmdError = gspca_dev->usb_buf[4];
|
||
|
sd->params.status.debugFlags = gspca_dev->usb_buf[5];
|
||
|
sd->params.status.vpStatus = gspca_dev->usb_buf[6];
|
||
|
sd->params.status.errorCode = gspca_dev->usb_buf[7];
|
||
|
break;
|
||
|
case CPIA_COMMAND_GetVPVersion:
|
||
|
sd->params.vpVersion.vpVersion = gspca_dev->usb_buf[0];
|
||
|
sd->params.vpVersion.vpRevision = gspca_dev->usb_buf[1];
|
||
|
sd->params.vpVersion.cameraHeadID =
|
||
|
gspca_dev->usb_buf[2] | (gspca_dev->usb_buf[3] << 8);
|
||
|
break;
|
||
|
case CPIA_COMMAND_GetColourParams:
|
||
|
sd->params.colourParams.brightness = gspca_dev->usb_buf[0];
|
||
|
sd->params.colourParams.contrast = gspca_dev->usb_buf[1];
|
||
|
sd->params.colourParams.saturation = gspca_dev->usb_buf[2];
|
||
|
break;
|
||
|
case CPIA_COMMAND_GetColourBalance:
|
||
|
sd->params.colourBalance.redGain = gspca_dev->usb_buf[0];
|
||
|
sd->params.colourBalance.greenGain = gspca_dev->usb_buf[1];
|
||
|
sd->params.colourBalance.blueGain = gspca_dev->usb_buf[2];
|
||
|
break;
|
||
|
case CPIA_COMMAND_GetExposure:
|
||
|
sd->params.exposure.gain = gspca_dev->usb_buf[0];
|
||
|
sd->params.exposure.fineExp = gspca_dev->usb_buf[1];
|
||
|
sd->params.exposure.coarseExpLo = gspca_dev->usb_buf[2];
|
||
|
sd->params.exposure.coarseExpHi = gspca_dev->usb_buf[3];
|
||
|
sd->params.exposure.redComp = gspca_dev->usb_buf[4];
|
||
|
sd->params.exposure.green1Comp = gspca_dev->usb_buf[5];
|
||
|
sd->params.exposure.green2Comp = gspca_dev->usb_buf[6];
|
||
|
sd->params.exposure.blueComp = gspca_dev->usb_buf[7];
|
||
|
break;
|
||
|
|
||
|
case CPIA_COMMAND_ReadMCPorts:
|
||
|
/* test button press */
|
||
|
a = ((gspca_dev->usb_buf[1] & 0x02) == 0);
|
||
|
if (a != sd->params.qx3.button) {
|
||
|
#if IS_ENABLED(CONFIG_INPUT)
|
||
|
input_report_key(gspca_dev->input_dev, KEY_CAMERA, a);
|
||
|
input_sync(gspca_dev->input_dev);
|
||
|
#endif
|
||
|
sd->params.qx3.button = a;
|
||
|
}
|
||
|
if (sd->params.qx3.button) {
|
||
|
/* button pressed - unlock the latch */
|
||
|
do_command(gspca_dev, CPIA_COMMAND_WriteMCPort,
|
||
|
3, 0xdf, 0xdf, 0);
|
||
|
do_command(gspca_dev, CPIA_COMMAND_WriteMCPort,
|
||
|
3, 0xff, 0xff, 0);
|
||
|
}
|
||
|
|
||
|
/* test whether microscope is cradled */
|
||
|
sd->params.qx3.cradled = ((gspca_dev->usb_buf[2] & 0x40) == 0);
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* send a command to the camera with an additional data transaction */
|
||
|
static int do_command_extended(struct gspca_dev *gspca_dev, u16 command,
|
||
|
u8 a, u8 b, u8 c, u8 d,
|
||
|
u8 e, u8 f, u8 g, u8 h,
|
||
|
u8 i, u8 j, u8 k, u8 l)
|
||
|
{
|
||
|
u8 cmd[8];
|
||
|
|
||
|
cmd[0] = command >> 8;
|
||
|
cmd[1] = command & 0xff;
|
||
|
cmd[2] = a;
|
||
|
cmd[3] = b;
|
||
|
cmd[4] = c;
|
||
|
cmd[5] = d;
|
||
|
cmd[6] = 8;
|
||
|
cmd[7] = 0;
|
||
|
gspca_dev->usb_buf[0] = e;
|
||
|
gspca_dev->usb_buf[1] = f;
|
||
|
gspca_dev->usb_buf[2] = g;
|
||
|
gspca_dev->usb_buf[3] = h;
|
||
|
gspca_dev->usb_buf[4] = i;
|
||
|
gspca_dev->usb_buf[5] = j;
|
||
|
gspca_dev->usb_buf[6] = k;
|
||
|
gspca_dev->usb_buf[7] = l;
|
||
|
|
||
|
return cpia_usb_transferCmd(gspca_dev, cmd);
|
||
|
}
|
||
|
|
||
|
/* find_over_exposure
|
||
|
* Finds a suitable value of OverExposure for use with SetFlickerCtrl
|
||
|
* Some calculation is required because this value changes with the brightness
|
||
|
* set with SetColourParameters
|
||
|
*
|
||
|
* Parameters: Brightness - last brightness value set with SetColourParameters
|
||
|
*
|
||
|
* Returns: OverExposure value to use with SetFlickerCtrl
|
||
|
*/
|
||
|
#define FLICKER_MAX_EXPOSURE 250
|
||
|
#define FLICKER_ALLOWABLE_OVER_EXPOSURE 146
|
||
|
#define FLICKER_BRIGHTNESS_CONSTANT 59
|
||
|
static int find_over_exposure(int brightness)
|
||
|
{
|
||
|
int MaxAllowableOverExposure, OverExposure;
|
||
|
|
||
|
MaxAllowableOverExposure = FLICKER_MAX_EXPOSURE - brightness -
|
||
|
FLICKER_BRIGHTNESS_CONSTANT;
|
||
|
|
||
|
if (MaxAllowableOverExposure < FLICKER_ALLOWABLE_OVER_EXPOSURE)
|
||
|
OverExposure = MaxAllowableOverExposure;
|
||
|
else
|
||
|
OverExposure = FLICKER_ALLOWABLE_OVER_EXPOSURE;
|
||
|
|
||
|
return OverExposure;
|
||
|
}
|
||
|
#undef FLICKER_MAX_EXPOSURE
|
||
|
#undef FLICKER_ALLOWABLE_OVER_EXPOSURE
|
||
|
#undef FLICKER_BRIGHTNESS_CONSTANT
|
||
|
|
||
|
/* initialise cam_data structure */
|
||
|
static void reset_camera_params(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
struct cam_params *params = &sd->params;
|
||
|
|
||
|
/* The following parameter values are the defaults from
|
||
|
* "Software Developer's Guide for CPiA Cameras". Any changes
|
||
|
* to the defaults are noted in comments. */
|
||
|
params->colourParams.brightness = BRIGHTNESS_DEF;
|
||
|
params->colourParams.contrast = CONTRAST_DEF;
|
||
|
params->colourParams.saturation = SATURATION_DEF;
|
||
|
params->exposure.gainMode = 4;
|
||
|
params->exposure.expMode = 2; /* AEC */
|
||
|
params->exposure.compMode = 1;
|
||
|
params->exposure.centreWeight = 1;
|
||
|
params->exposure.gain = 0;
|
||
|
params->exposure.fineExp = 0;
|
||
|
params->exposure.coarseExpLo = 185;
|
||
|
params->exposure.coarseExpHi = 0;
|
||
|
params->exposure.redComp = COMP_RED;
|
||
|
params->exposure.green1Comp = COMP_GREEN1;
|
||
|
params->exposure.green2Comp = COMP_GREEN2;
|
||
|
params->exposure.blueComp = COMP_BLUE;
|
||
|
params->colourBalance.balanceMode = 2; /* ACB */
|
||
|
params->colourBalance.redGain = 32;
|
||
|
params->colourBalance.greenGain = 6;
|
||
|
params->colourBalance.blueGain = 92;
|
||
|
params->apcor.gain1 = 0x18;
|
||
|
params->apcor.gain2 = 0x16;
|
||
|
params->apcor.gain4 = 0x24;
|
||
|
params->apcor.gain8 = 0x34;
|
||
|
params->vlOffset.gain1 = 20;
|
||
|
params->vlOffset.gain2 = 24;
|
||
|
params->vlOffset.gain4 = 26;
|
||
|
params->vlOffset.gain8 = 26;
|
||
|
params->compressionParams.hysteresis = 3;
|
||
|
params->compressionParams.threshMax = 11;
|
||
|
params->compressionParams.smallStep = 1;
|
||
|
params->compressionParams.largeStep = 3;
|
||
|
params->compressionParams.decimationHysteresis = 2;
|
||
|
params->compressionParams.frDiffStepThresh = 5;
|
||
|
params->compressionParams.qDiffStepThresh = 3;
|
||
|
params->compressionParams.decimationThreshMod = 2;
|
||
|
/* End of default values from Software Developer's Guide */
|
||
|
|
||
|
/* Set Sensor FPS to 15fps. This seems better than 30fps
|
||
|
* for indoor lighting. */
|
||
|
params->sensorFps.divisor = 1;
|
||
|
params->sensorFps.baserate = 1;
|
||
|
|
||
|
params->flickerControl.flickerMode = 0;
|
||
|
params->flickerControl.disabled = 1;
|
||
|
params->flickerControl.coarseJump =
|
||
|
flicker_jumps[sd->mainsFreq]
|
||
|
[params->sensorFps.baserate]
|
||
|
[params->sensorFps.divisor];
|
||
|
params->flickerControl.allowableOverExposure =
|
||
|
find_over_exposure(params->colourParams.brightness);
|
||
|
|
||
|
params->yuvThreshold.yThreshold = 6; /* From windows driver */
|
||
|
params->yuvThreshold.uvThreshold = 6; /* From windows driver */
|
||
|
|
||
|
params->format.subSample = SUBSAMPLE_420;
|
||
|
params->format.yuvOrder = YUVORDER_YUYV;
|
||
|
|
||
|
params->compression.mode = CPIA_COMPRESSION_AUTO;
|
||
|
params->compression.decimation = NO_DECIMATION;
|
||
|
|
||
|
params->compressionTarget.frTargeting = COMP_TARGET_DEF;
|
||
|
params->compressionTarget.targetFR = 15; /* From windows driver */
|
||
|
params->compressionTarget.targetQ = 5; /* From windows driver */
|
||
|
|
||
|
params->qx3.qx3_detected = 0;
|
||
|
params->qx3.toplight = 0;
|
||
|
params->qx3.bottomlight = 0;
|
||
|
params->qx3.button = 0;
|
||
|
params->qx3.cradled = 0;
|
||
|
}
|
||
|
|
||
|
static void printstatus(struct gspca_dev *gspca_dev, struct cam_params *params)
|
||
|
{
|
||
|
PDEBUG(D_PROBE, "status: %02x %02x %02x %02x %02x %02x %02x %02x",
|
||
|
params->status.systemState, params->status.grabState,
|
||
|
params->status.streamState, params->status.fatalError,
|
||
|
params->status.cmdError, params->status.debugFlags,
|
||
|
params->status.vpStatus, params->status.errorCode);
|
||
|
}
|
||
|
|
||
|
static int goto_low_power(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int ret;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_GotoLoPower, 0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
if (sd->params.status.systemState != LO_POWER_STATE) {
|
||
|
if (sd->params.status.systemState != WARM_BOOT_STATE) {
|
||
|
PERR("unexpected state after lo power cmd: %02x",
|
||
|
sd->params.status.systemState);
|
||
|
printstatus(gspca_dev, &sd->params);
|
||
|
}
|
||
|
return -EIO;
|
||
|
}
|
||
|
|
||
|
PDEBUG(D_CONF, "camera now in LOW power state");
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int goto_high_power(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int ret;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_GotoHiPower, 0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
msleep_interruptible(40); /* windows driver does it too */
|
||
|
|
||
|
if (signal_pending(current))
|
||
|
return -EINTR;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
if (sd->params.status.systemState != HI_POWER_STATE) {
|
||
|
PERR("unexpected state after hi power cmd: %02x",
|
||
|
sd->params.status.systemState);
|
||
|
printstatus(gspca_dev, &sd->params);
|
||
|
return -EIO;
|
||
|
}
|
||
|
|
||
|
PDEBUG(D_CONF, "camera now in HIGH power state");
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int get_version_information(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
int ret;
|
||
|
|
||
|
/* GetCPIAVersion */
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_GetCPIAVersion, 0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* GetPnPID */
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_GetPnPID, 0, 0, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int save_camera_state(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
int ret;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_GetColourBalance, 0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_GetExposure, 0, 0, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int command_setformat(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int ret;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_SetFormat,
|
||
|
sd->params.format.videoSize,
|
||
|
sd->params.format.subSample,
|
||
|
sd->params.format.yuvOrder, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetROI,
|
||
|
sd->params.roi.colStart, sd->params.roi.colEnd,
|
||
|
sd->params.roi.rowStart, sd->params.roi.rowEnd);
|
||
|
}
|
||
|
|
||
|
static int command_setcolourparams(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetColourParams,
|
||
|
sd->params.colourParams.brightness,
|
||
|
sd->params.colourParams.contrast,
|
||
|
sd->params.colourParams.saturation, 0);
|
||
|
}
|
||
|
|
||
|
static int command_setapcor(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetApcor,
|
||
|
sd->params.apcor.gain1,
|
||
|
sd->params.apcor.gain2,
|
||
|
sd->params.apcor.gain4,
|
||
|
sd->params.apcor.gain8);
|
||
|
}
|
||
|
|
||
|
static int command_setvloffset(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetVLOffset,
|
||
|
sd->params.vlOffset.gain1,
|
||
|
sd->params.vlOffset.gain2,
|
||
|
sd->params.vlOffset.gain4,
|
||
|
sd->params.vlOffset.gain8);
|
||
|
}
|
||
|
|
||
|
static int command_setexposure(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int ret;
|
||
|
|
||
|
ret = do_command_extended(gspca_dev, CPIA_COMMAND_SetExposure,
|
||
|
sd->params.exposure.gainMode,
|
||
|
1,
|
||
|
sd->params.exposure.compMode,
|
||
|
sd->params.exposure.centreWeight,
|
||
|
sd->params.exposure.gain,
|
||
|
sd->params.exposure.fineExp,
|
||
|
sd->params.exposure.coarseExpLo,
|
||
|
sd->params.exposure.coarseExpHi,
|
||
|
sd->params.exposure.redComp,
|
||
|
sd->params.exposure.green1Comp,
|
||
|
sd->params.exposure.green2Comp,
|
||
|
sd->params.exposure.blueComp);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
if (sd->params.exposure.expMode != 1) {
|
||
|
ret = do_command_extended(gspca_dev, CPIA_COMMAND_SetExposure,
|
||
|
0,
|
||
|
sd->params.exposure.expMode,
|
||
|
0, 0,
|
||
|
sd->params.exposure.gain,
|
||
|
sd->params.exposure.fineExp,
|
||
|
sd->params.exposure.coarseExpLo,
|
||
|
sd->params.exposure.coarseExpHi,
|
||
|
0, 0, 0, 0);
|
||
|
}
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int command_setcolourbalance(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
if (sd->params.colourBalance.balanceMode == 1) {
|
||
|
int ret;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_SetColourBalance,
|
||
|
1,
|
||
|
sd->params.colourBalance.redGain,
|
||
|
sd->params.colourBalance.greenGain,
|
||
|
sd->params.colourBalance.blueGain);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetColourBalance,
|
||
|
3, 0, 0, 0);
|
||
|
}
|
||
|
if (sd->params.colourBalance.balanceMode == 2) {
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetColourBalance,
|
||
|
2, 0, 0, 0);
|
||
|
}
|
||
|
if (sd->params.colourBalance.balanceMode == 3) {
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetColourBalance,
|
||
|
3, 0, 0, 0);
|
||
|
}
|
||
|
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
static int command_setcompressiontarget(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetCompressionTarget,
|
||
|
sd->params.compressionTarget.frTargeting,
|
||
|
sd->params.compressionTarget.targetFR,
|
||
|
sd->params.compressionTarget.targetQ, 0);
|
||
|
}
|
||
|
|
||
|
static int command_setyuvtresh(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetYUVThresh,
|
||
|
sd->params.yuvThreshold.yThreshold,
|
||
|
sd->params.yuvThreshold.uvThreshold, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int command_setcompressionparams(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
return do_command_extended(gspca_dev,
|
||
|
CPIA_COMMAND_SetCompressionParams,
|
||
|
0, 0, 0, 0,
|
||
|
sd->params.compressionParams.hysteresis,
|
||
|
sd->params.compressionParams.threshMax,
|
||
|
sd->params.compressionParams.smallStep,
|
||
|
sd->params.compressionParams.largeStep,
|
||
|
sd->params.compressionParams.decimationHysteresis,
|
||
|
sd->params.compressionParams.frDiffStepThresh,
|
||
|
sd->params.compressionParams.qDiffStepThresh,
|
||
|
sd->params.compressionParams.decimationThreshMod);
|
||
|
}
|
||
|
|
||
|
static int command_setcompression(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetCompression,
|
||
|
sd->params.compression.mode,
|
||
|
sd->params.compression.decimation, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int command_setsensorfps(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetSensorFPS,
|
||
|
sd->params.sensorFps.divisor,
|
||
|
sd->params.sensorFps.baserate, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int command_setflickerctrl(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetFlickerCtrl,
|
||
|
sd->params.flickerControl.flickerMode,
|
||
|
sd->params.flickerControl.coarseJump,
|
||
|
sd->params.flickerControl.allowableOverExposure,
|
||
|
0);
|
||
|
}
|
||
|
|
||
|
static int command_setecptiming(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_SetECPTiming,
|
||
|
sd->params.ecpTiming, 0, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int command_pause(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_EndStreamCap, 0, 0, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int command_resume(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_InitStreamCap,
|
||
|
0, sd->params.streamStartLine, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int command_setlights(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int ret, p1, p2;
|
||
|
|
||
|
p1 = (sd->params.qx3.bottomlight == 0) << 1;
|
||
|
p2 = (sd->params.qx3.toplight == 0) << 3;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_WriteVCReg,
|
||
|
0x90, 0x8f, 0x50, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
return do_command(gspca_dev, CPIA_COMMAND_WriteMCPort, 2, 0,
|
||
|
p1 | p2 | 0xe0, 0);
|
||
|
}
|
||
|
|
||
|
static int set_flicker(struct gspca_dev *gspca_dev, int on, int apply)
|
||
|
{
|
||
|
/* Everything in here is from the Windows driver */
|
||
|
/* define for compgain calculation */
|
||
|
#if 0
|
||
|
#define COMPGAIN(base, curexp, newexp) \
|
||
|
(u8) ((((float) base - 128.0) * ((float) curexp / (float) newexp)) + 128.5)
|
||
|
#define EXP_FROM_COMP(basecomp, curcomp, curexp) \
|
||
|
(u16)((float)curexp * (float)(u8)(curcomp + 128) / \
|
||
|
(float)(u8)(basecomp - 128))
|
||
|
#else
|
||
|
/* equivalent functions without floating point math */
|
||
|
#define COMPGAIN(base, curexp, newexp) \
|
||
|
(u8)(128 + (((u32)(2*(base-128)*curexp + newexp)) / (2 * newexp)))
|
||
|
#define EXP_FROM_COMP(basecomp, curcomp, curexp) \
|
||
|
(u16)(((u32)(curexp * (u8)(curcomp + 128)) / (u8)(basecomp - 128)))
|
||
|
#endif
|
||
|
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int currentexp = sd->params.exposure.coarseExpLo +
|
||
|
sd->params.exposure.coarseExpHi * 256;
|
||
|
int ret, startexp;
|
||
|
|
||
|
if (on) {
|
||
|
int cj = sd->params.flickerControl.coarseJump;
|
||
|
sd->params.flickerControl.flickerMode = 1;
|
||
|
sd->params.flickerControl.disabled = 0;
|
||
|
if (sd->params.exposure.expMode != 2) {
|
||
|
sd->params.exposure.expMode = 2;
|
||
|
sd->exposure_status = EXPOSURE_NORMAL;
|
||
|
}
|
||
|
currentexp = currentexp << sd->params.exposure.gain;
|
||
|
sd->params.exposure.gain = 0;
|
||
|
/* round down current exposure to nearest value */
|
||
|
startexp = (currentexp + ROUND_UP_EXP_FOR_FLICKER) / cj;
|
||
|
if (startexp < 1)
|
||
|
startexp = 1;
|
||
|
startexp = (startexp * cj) - 1;
|
||
|
if (FIRMWARE_VERSION(1, 2))
|
||
|
while (startexp > MAX_EXP_102)
|
||
|
startexp -= cj;
|
||
|
else
|
||
|
while (startexp > MAX_EXP)
|
||
|
startexp -= cj;
|
||
|
sd->params.exposure.coarseExpLo = startexp & 0xff;
|
||
|
sd->params.exposure.coarseExpHi = startexp >> 8;
|
||
|
if (currentexp > startexp) {
|
||
|
if (currentexp > (2 * startexp))
|
||
|
currentexp = 2 * startexp;
|
||
|
sd->params.exposure.redComp =
|
||
|
COMPGAIN(COMP_RED, currentexp, startexp);
|
||
|
sd->params.exposure.green1Comp =
|
||
|
COMPGAIN(COMP_GREEN1, currentexp, startexp);
|
||
|
sd->params.exposure.green2Comp =
|
||
|
COMPGAIN(COMP_GREEN2, currentexp, startexp);
|
||
|
sd->params.exposure.blueComp =
|
||
|
COMPGAIN(COMP_BLUE, currentexp, startexp);
|
||
|
} else {
|
||
|
sd->params.exposure.redComp = COMP_RED;
|
||
|
sd->params.exposure.green1Comp = COMP_GREEN1;
|
||
|
sd->params.exposure.green2Comp = COMP_GREEN2;
|
||
|
sd->params.exposure.blueComp = COMP_BLUE;
|
||
|
}
|
||
|
if (FIRMWARE_VERSION(1, 2))
|
||
|
sd->params.exposure.compMode = 0;
|
||
|
else
|
||
|
sd->params.exposure.compMode = 1;
|
||
|
|
||
|
sd->params.apcor.gain1 = 0x18;
|
||
|
sd->params.apcor.gain2 = 0x18;
|
||
|
sd->params.apcor.gain4 = 0x16;
|
||
|
sd->params.apcor.gain8 = 0x14;
|
||
|
} else {
|
||
|
sd->params.flickerControl.flickerMode = 0;
|
||
|
sd->params.flickerControl.disabled = 1;
|
||
|
/* Average equivalent coarse for each comp channel */
|
||
|
startexp = EXP_FROM_COMP(COMP_RED,
|
||
|
sd->params.exposure.redComp, currentexp);
|
||
|
startexp += EXP_FROM_COMP(COMP_GREEN1,
|
||
|
sd->params.exposure.green1Comp, currentexp);
|
||
|
startexp += EXP_FROM_COMP(COMP_GREEN2,
|
||
|
sd->params.exposure.green2Comp, currentexp);
|
||
|
startexp += EXP_FROM_COMP(COMP_BLUE,
|
||
|
sd->params.exposure.blueComp, currentexp);
|
||
|
startexp = startexp >> 2;
|
||
|
while (startexp > MAX_EXP && sd->params.exposure.gain <
|
||
|
sd->params.exposure.gainMode - 1) {
|
||
|
startexp = startexp >> 1;
|
||
|
++sd->params.exposure.gain;
|
||
|
}
|
||
|
if (FIRMWARE_VERSION(1, 2) && startexp > MAX_EXP_102)
|
||
|
startexp = MAX_EXP_102;
|
||
|
if (startexp > MAX_EXP)
|
||
|
startexp = MAX_EXP;
|
||
|
sd->params.exposure.coarseExpLo = startexp & 0xff;
|
||
|
sd->params.exposure.coarseExpHi = startexp >> 8;
|
||
|
sd->params.exposure.redComp = COMP_RED;
|
||
|
sd->params.exposure.green1Comp = COMP_GREEN1;
|
||
|
sd->params.exposure.green2Comp = COMP_GREEN2;
|
||
|
sd->params.exposure.blueComp = COMP_BLUE;
|
||
|
sd->params.exposure.compMode = 1;
|
||
|
sd->params.apcor.gain1 = 0x18;
|
||
|
sd->params.apcor.gain2 = 0x16;
|
||
|
sd->params.apcor.gain4 = 0x24;
|
||
|
sd->params.apcor.gain8 = 0x34;
|
||
|
}
|
||
|
sd->params.vlOffset.gain1 = 20;
|
||
|
sd->params.vlOffset.gain2 = 24;
|
||
|
sd->params.vlOffset.gain4 = 26;
|
||
|
sd->params.vlOffset.gain8 = 26;
|
||
|
|
||
|
if (apply) {
|
||
|
ret = command_setexposure(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = command_setapcor(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = command_setvloffset(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = command_setflickerctrl(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
#undef EXP_FROM_COMP
|
||
|
#undef COMPGAIN
|
||
|
}
|
||
|
|
||
|
/* monitor the exposure and adjust the sensor frame rate if needed */
|
||
|
static void monitor_exposure(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
u8 exp_acc, bcomp, cmd[8];
|
||
|
int ret, light_exp, dark_exp, very_dark_exp;
|
||
|
int old_exposure, new_exposure, framerate;
|
||
|
int setfps = 0, setexp = 0, setflicker = 0;
|
||
|
|
||
|
/* get necessary stats and register settings from camera */
|
||
|
/* do_command can't handle this, so do it ourselves */
|
||
|
cmd[0] = CPIA_COMMAND_ReadVPRegs >> 8;
|
||
|
cmd[1] = CPIA_COMMAND_ReadVPRegs & 0xff;
|
||
|
cmd[2] = 30;
|
||
|
cmd[3] = 4;
|
||
|
cmd[4] = 9;
|
||
|
cmd[5] = 8;
|
||
|
cmd[6] = 8;
|
||
|
cmd[7] = 0;
|
||
|
ret = cpia_usb_transferCmd(gspca_dev, cmd);
|
||
|
if (ret) {
|
||
|
pr_err("ReadVPRegs(30,4,9,8) - failed: %d\n", ret);
|
||
|
return;
|
||
|
}
|
||
|
exp_acc = gspca_dev->usb_buf[0];
|
||
|
bcomp = gspca_dev->usb_buf[1];
|
||
|
|
||
|
light_exp = sd->params.colourParams.brightness +
|
||
|
TC - 50 + EXP_ACC_LIGHT;
|
||
|
if (light_exp > 255)
|
||
|
light_exp = 255;
|
||
|
dark_exp = sd->params.colourParams.brightness +
|
||
|
TC - 50 - EXP_ACC_DARK;
|
||
|
if (dark_exp < 0)
|
||
|
dark_exp = 0;
|
||
|
very_dark_exp = dark_exp / 2;
|
||
|
|
||
|
old_exposure = sd->params.exposure.coarseExpHi * 256 +
|
||
|
sd->params.exposure.coarseExpLo;
|
||
|
|
||
|
if (!sd->params.flickerControl.disabled) {
|
||
|
/* Flicker control on */
|
||
|
int max_comp = FIRMWARE_VERSION(1, 2) ? MAX_COMP :
|
||
|
HIGH_COMP_102;
|
||
|
bcomp += 128; /* decode */
|
||
|
if (bcomp >= max_comp && exp_acc < dark_exp) {
|
||
|
/* dark */
|
||
|
if (exp_acc < very_dark_exp) {
|
||
|
/* very dark */
|
||
|
if (sd->exposure_status == EXPOSURE_VERY_DARK)
|
||
|
++sd->exposure_count;
|
||
|
else {
|
||
|
sd->exposure_status =
|
||
|
EXPOSURE_VERY_DARK;
|
||
|
sd->exposure_count = 1;
|
||
|
}
|
||
|
} else {
|
||
|
/* just dark */
|
||
|
if (sd->exposure_status == EXPOSURE_DARK)
|
||
|
++sd->exposure_count;
|
||
|
else {
|
||
|
sd->exposure_status = EXPOSURE_DARK;
|
||
|
sd->exposure_count = 1;
|
||
|
}
|
||
|
}
|
||
|
} else if (old_exposure <= LOW_EXP || exp_acc > light_exp) {
|
||
|
/* light */
|
||
|
if (old_exposure <= VERY_LOW_EXP) {
|
||
|
/* very light */
|
||
|
if (sd->exposure_status == EXPOSURE_VERY_LIGHT)
|
||
|
++sd->exposure_count;
|
||
|
else {
|
||
|
sd->exposure_status =
|
||
|
EXPOSURE_VERY_LIGHT;
|
||
|
sd->exposure_count = 1;
|
||
|
}
|
||
|
} else {
|
||
|
/* just light */
|
||
|
if (sd->exposure_status == EXPOSURE_LIGHT)
|
||
|
++sd->exposure_count;
|
||
|
else {
|
||
|
sd->exposure_status = EXPOSURE_LIGHT;
|
||
|
sd->exposure_count = 1;
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
/* not dark or light */
|
||
|
sd->exposure_status = EXPOSURE_NORMAL;
|
||
|
}
|
||
|
} else {
|
||
|
/* Flicker control off */
|
||
|
if (old_exposure >= MAX_EXP && exp_acc < dark_exp) {
|
||
|
/* dark */
|
||
|
if (exp_acc < very_dark_exp) {
|
||
|
/* very dark */
|
||
|
if (sd->exposure_status == EXPOSURE_VERY_DARK)
|
||
|
++sd->exposure_count;
|
||
|
else {
|
||
|
sd->exposure_status =
|
||
|
EXPOSURE_VERY_DARK;
|
||
|
sd->exposure_count = 1;
|
||
|
}
|
||
|
} else {
|
||
|
/* just dark */
|
||
|
if (sd->exposure_status == EXPOSURE_DARK)
|
||
|
++sd->exposure_count;
|
||
|
else {
|
||
|
sd->exposure_status = EXPOSURE_DARK;
|
||
|
sd->exposure_count = 1;
|
||
|
}
|
||
|
}
|
||
|
} else if (old_exposure <= LOW_EXP || exp_acc > light_exp) {
|
||
|
/* light */
|
||
|
if (old_exposure <= VERY_LOW_EXP) {
|
||
|
/* very light */
|
||
|
if (sd->exposure_status == EXPOSURE_VERY_LIGHT)
|
||
|
++sd->exposure_count;
|
||
|
else {
|
||
|
sd->exposure_status =
|
||
|
EXPOSURE_VERY_LIGHT;
|
||
|
sd->exposure_count = 1;
|
||
|
}
|
||
|
} else {
|
||
|
/* just light */
|
||
|
if (sd->exposure_status == EXPOSURE_LIGHT)
|
||
|
++sd->exposure_count;
|
||
|
else {
|
||
|
sd->exposure_status = EXPOSURE_LIGHT;
|
||
|
sd->exposure_count = 1;
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
/* not dark or light */
|
||
|
sd->exposure_status = EXPOSURE_NORMAL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
framerate = atomic_read(&sd->fps);
|
||
|
if (framerate > 30 || framerate < 1)
|
||
|
framerate = 1;
|
||
|
|
||
|
if (!sd->params.flickerControl.disabled) {
|
||
|
/* Flicker control on */
|
||
|
if ((sd->exposure_status == EXPOSURE_VERY_DARK ||
|
||
|
sd->exposure_status == EXPOSURE_DARK) &&
|
||
|
sd->exposure_count >= DARK_TIME * framerate &&
|
||
|
sd->params.sensorFps.divisor < 2) {
|
||
|
|
||
|
/* dark for too long */
|
||
|
++sd->params.sensorFps.divisor;
|
||
|
setfps = 1;
|
||
|
|
||
|
sd->params.flickerControl.coarseJump =
|
||
|
flicker_jumps[sd->mainsFreq]
|
||
|
[sd->params.sensorFps.baserate]
|
||
|
[sd->params.sensorFps.divisor];
|
||
|
setflicker = 1;
|
||
|
|
||
|
new_exposure = sd->params.flickerControl.coarseJump-1;
|
||
|
while (new_exposure < old_exposure / 2)
|
||
|
new_exposure +=
|
||
|
sd->params.flickerControl.coarseJump;
|
||
|
sd->params.exposure.coarseExpLo = new_exposure & 0xff;
|
||
|
sd->params.exposure.coarseExpHi = new_exposure >> 8;
|
||
|
setexp = 1;
|
||
|
sd->exposure_status = EXPOSURE_NORMAL;
|
||
|
PDEBUG(D_CONF, "Automatically decreasing sensor_fps");
|
||
|
|
||
|
} else if ((sd->exposure_status == EXPOSURE_VERY_LIGHT ||
|
||
|
sd->exposure_status == EXPOSURE_LIGHT) &&
|
||
|
sd->exposure_count >= LIGHT_TIME * framerate &&
|
||
|
sd->params.sensorFps.divisor > 0) {
|
||
|
|
||
|
/* light for too long */
|
||
|
int max_exp = FIRMWARE_VERSION(1, 2) ? MAX_EXP_102 :
|
||
|
MAX_EXP;
|
||
|
--sd->params.sensorFps.divisor;
|
||
|
setfps = 1;
|
||
|
|
||
|
sd->params.flickerControl.coarseJump =
|
||
|
flicker_jumps[sd->mainsFreq]
|
||
|
[sd->params.sensorFps.baserate]
|
||
|
[sd->params.sensorFps.divisor];
|
||
|
setflicker = 1;
|
||
|
|
||
|
new_exposure = sd->params.flickerControl.coarseJump-1;
|
||
|
while (new_exposure < 2 * old_exposure &&
|
||
|
new_exposure +
|
||
|
sd->params.flickerControl.coarseJump < max_exp)
|
||
|
new_exposure +=
|
||
|
sd->params.flickerControl.coarseJump;
|
||
|
sd->params.exposure.coarseExpLo = new_exposure & 0xff;
|
||
|
sd->params.exposure.coarseExpHi = new_exposure >> 8;
|
||
|
setexp = 1;
|
||
|
sd->exposure_status = EXPOSURE_NORMAL;
|
||
|
PDEBUG(D_CONF, "Automatically increasing sensor_fps");
|
||
|
}
|
||
|
} else {
|
||
|
/* Flicker control off */
|
||
|
if ((sd->exposure_status == EXPOSURE_VERY_DARK ||
|
||
|
sd->exposure_status == EXPOSURE_DARK) &&
|
||
|
sd->exposure_count >= DARK_TIME * framerate &&
|
||
|
sd->params.sensorFps.divisor < 2) {
|
||
|
|
||
|
/* dark for too long */
|
||
|
++sd->params.sensorFps.divisor;
|
||
|
setfps = 1;
|
||
|
|
||
|
if (sd->params.exposure.gain > 0) {
|
||
|
--sd->params.exposure.gain;
|
||
|
setexp = 1;
|
||
|
}
|
||
|
sd->exposure_status = EXPOSURE_NORMAL;
|
||
|
PDEBUG(D_CONF, "Automatically decreasing sensor_fps");
|
||
|
|
||
|
} else if ((sd->exposure_status == EXPOSURE_VERY_LIGHT ||
|
||
|
sd->exposure_status == EXPOSURE_LIGHT) &&
|
||
|
sd->exposure_count >= LIGHT_TIME * framerate &&
|
||
|
sd->params.sensorFps.divisor > 0) {
|
||
|
|
||
|
/* light for too long */
|
||
|
--sd->params.sensorFps.divisor;
|
||
|
setfps = 1;
|
||
|
|
||
|
if (sd->params.exposure.gain <
|
||
|
sd->params.exposure.gainMode - 1) {
|
||
|
++sd->params.exposure.gain;
|
||
|
setexp = 1;
|
||
|
}
|
||
|
sd->exposure_status = EXPOSURE_NORMAL;
|
||
|
PDEBUG(D_CONF, "Automatically increasing sensor_fps");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (setexp)
|
||
|
command_setexposure(gspca_dev);
|
||
|
|
||
|
if (setfps)
|
||
|
command_setsensorfps(gspca_dev);
|
||
|
|
||
|
if (setflicker)
|
||
|
command_setflickerctrl(gspca_dev);
|
||
|
}
|
||
|
|
||
|
/*-----------------------------------------------------------------*/
|
||
|
/* if flicker is switched off, this function switches it back on.It checks,
|
||
|
however, that conditions are suitable before restarting it.
|
||
|
This should only be called for firmware version 1.2.
|
||
|
|
||
|
It also adjust the colour balance when an exposure step is detected - as
|
||
|
long as flicker is running
|
||
|
*/
|
||
|
static void restart_flicker(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int cam_exposure, old_exp;
|
||
|
|
||
|
if (!FIRMWARE_VERSION(1, 2))
|
||
|
return;
|
||
|
|
||
|
cam_exposure = atomic_read(&sd->cam_exposure);
|
||
|
|
||
|
if (sd->params.flickerControl.flickerMode == 0 ||
|
||
|
cam_exposure == 0)
|
||
|
return;
|
||
|
|
||
|
old_exp = sd->params.exposure.coarseExpLo +
|
||
|
sd->params.exposure.coarseExpHi*256;
|
||
|
/*
|
||
|
see how far away camera exposure is from a valid
|
||
|
flicker exposure value
|
||
|
*/
|
||
|
cam_exposure %= sd->params.flickerControl.coarseJump;
|
||
|
if (!sd->params.flickerControl.disabled &&
|
||
|
cam_exposure <= sd->params.flickerControl.coarseJump - 3) {
|
||
|
/* Flicker control auto-disabled */
|
||
|
sd->params.flickerControl.disabled = 1;
|
||
|
}
|
||
|
|
||
|
if (sd->params.flickerControl.disabled &&
|
||
|
old_exp > sd->params.flickerControl.coarseJump +
|
||
|
ROUND_UP_EXP_FOR_FLICKER) {
|
||
|
/* exposure is now high enough to switch
|
||
|
flicker control back on */
|
||
|
set_flicker(gspca_dev, 1, 1);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* this function is called at probe time */
|
||
|
static int sd_config(struct gspca_dev *gspca_dev,
|
||
|
const struct usb_device_id *id)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
struct cam *cam;
|
||
|
|
||
|
sd->mainsFreq = FREQ_DEF == V4L2_CID_POWER_LINE_FREQUENCY_60HZ;
|
||
|
reset_camera_params(gspca_dev);
|
||
|
|
||
|
PDEBUG(D_PROBE, "cpia CPiA camera detected (vid/pid 0x%04X:0x%04X)",
|
||
|
id->idVendor, id->idProduct);
|
||
|
|
||
|
cam = &gspca_dev->cam;
|
||
|
cam->cam_mode = mode;
|
||
|
cam->nmodes = ARRAY_SIZE(mode);
|
||
|
|
||
|
goto_low_power(gspca_dev);
|
||
|
/* Check the firmware version. */
|
||
|
sd->params.version.firmwareVersion = 0;
|
||
|
get_version_information(gspca_dev);
|
||
|
if (sd->params.version.firmwareVersion != 1) {
|
||
|
PERR("only firmware version 1 is supported (got: %d)",
|
||
|
sd->params.version.firmwareVersion);
|
||
|
return -ENODEV;
|
||
|
}
|
||
|
|
||
|
/* A bug in firmware 1-02 limits gainMode to 2 */
|
||
|
if (sd->params.version.firmwareRevision <= 2 &&
|
||
|
sd->params.exposure.gainMode > 2) {
|
||
|
sd->params.exposure.gainMode = 2;
|
||
|
}
|
||
|
|
||
|
/* set QX3 detected flag */
|
||
|
sd->params.qx3.qx3_detected = (sd->params.pnpID.vendor == 0x0813 &&
|
||
|
sd->params.pnpID.product == 0x0001);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* -- start the camera -- */
|
||
|
static int sd_start(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int priv, ret;
|
||
|
|
||
|
/* Start the camera in low power mode */
|
||
|
if (goto_low_power(gspca_dev)) {
|
||
|
if (sd->params.status.systemState != WARM_BOOT_STATE) {
|
||
|
PERR("unexpected systemstate: %02x",
|
||
|
sd->params.status.systemState);
|
||
|
printstatus(gspca_dev, &sd->params);
|
||
|
return -ENODEV;
|
||
|
}
|
||
|
|
||
|
/* FIXME: this is just dirty trial and error */
|
||
|
ret = goto_high_power(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_DiscardFrame,
|
||
|
0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ret = goto_low_power(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/* procedure described in developer's guide p3-28 */
|
||
|
|
||
|
/* Check the firmware version. */
|
||
|
sd->params.version.firmwareVersion = 0;
|
||
|
get_version_information(gspca_dev);
|
||
|
|
||
|
/* The fatal error checking should be done after
|
||
|
* the camera powers up (developer's guide p 3-38) */
|
||
|
|
||
|
/* Set streamState before transition to high power to avoid bug
|
||
|
* in firmware 1-02 */
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_ModifyCameraStatus,
|
||
|
STREAMSTATE, 0, STREAM_NOT_READY, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* GotoHiPower */
|
||
|
ret = goto_high_power(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* Check the camera status */
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
if (sd->params.status.fatalError) {
|
||
|
PERR("fatal_error: %04x, vp_status: %04x",
|
||
|
sd->params.status.fatalError, sd->params.status.vpStatus);
|
||
|
return -EIO;
|
||
|
}
|
||
|
|
||
|
/* VPVersion can't be retrieved before the camera is in HiPower,
|
||
|
* so get it here instead of in get_version_information. */
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_GetVPVersion, 0, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* Determine video mode settings */
|
||
|
sd->params.streamStartLine = 120;
|
||
|
|
||
|
priv = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
|
||
|
if (priv & 0x01) { /* crop */
|
||
|
sd->params.roi.colStart = 2;
|
||
|
sd->params.roi.rowStart = 6;
|
||
|
} else {
|
||
|
sd->params.roi.colStart = 0;
|
||
|
sd->params.roi.rowStart = 0;
|
||
|
}
|
||
|
|
||
|
if (priv & 0x02) { /* quarter */
|
||
|
sd->params.format.videoSize = VIDEOSIZE_QCIF;
|
||
|
sd->params.roi.colStart /= 2;
|
||
|
sd->params.roi.rowStart /= 2;
|
||
|
sd->params.streamStartLine /= 2;
|
||
|
} else
|
||
|
sd->params.format.videoSize = VIDEOSIZE_CIF;
|
||
|
|
||
|
sd->params.roi.colEnd = sd->params.roi.colStart +
|
||
|
(gspca_dev->pixfmt.width >> 3);
|
||
|
sd->params.roi.rowEnd = sd->params.roi.rowStart +
|
||
|
(gspca_dev->pixfmt.height >> 2);
|
||
|
|
||
|
/* And now set the camera to a known state */
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_SetGrabMode,
|
||
|
CPIA_GRAB_CONTINEOUS, 0, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
/* We start with compression disabled, as we need one uncompressed
|
||
|
frame to handle later compressed frames */
|
||
|
ret = do_command(gspca_dev, CPIA_COMMAND_SetCompression,
|
||
|
CPIA_COMPRESSION_NONE,
|
||
|
NO_DECIMATION, 0, 0);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setcompressiontarget(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setcolourparams(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setformat(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setyuvtresh(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setecptiming(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setcompressionparams(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setexposure(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setcolourbalance(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setsensorfps(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setapcor(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setflickerctrl(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
ret = command_setvloffset(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* Start stream */
|
||
|
ret = command_resume(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* Wait 6 frames before turning compression on for the sensor to get
|
||
|
all settings and AEC/ACB to settle */
|
||
|
sd->first_frame = 6;
|
||
|
sd->exposure_status = EXPOSURE_NORMAL;
|
||
|
sd->exposure_count = 0;
|
||
|
atomic_set(&sd->cam_exposure, 0);
|
||
|
atomic_set(&sd->fps, 0);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void sd_stopN(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd __maybe_unused = (struct sd *) gspca_dev;
|
||
|
|
||
|
command_pause(gspca_dev);
|
||
|
|
||
|
/* save camera state for later open (developers guide ch 3.5.3) */
|
||
|
save_camera_state(gspca_dev);
|
||
|
|
||
|
/* GotoLoPower */
|
||
|
goto_low_power(gspca_dev);
|
||
|
|
||
|
/* Update the camera status */
|
||
|
do_command(gspca_dev, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0);
|
||
|
|
||
|
#if IS_ENABLED(CONFIG_INPUT)
|
||
|
/* If the last button state is pressed, release it now! */
|
||
|
if (sd->params.qx3.button) {
|
||
|
/* The camera latch will hold the pressed state until we reset
|
||
|
the latch, so we do not reset sd->params.qx3.button now, to
|
||
|
avoid a false keypress being reported the next sd_start */
|
||
|
input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
|
||
|
input_sync(gspca_dev->input_dev);
|
||
|
}
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
/* this function is called at probe and resume time */
|
||
|
static int sd_init(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
int ret;
|
||
|
|
||
|
/* Start / Stop the camera to make sure we are talking to
|
||
|
a supported camera, and to get some information from it
|
||
|
to print. */
|
||
|
ret = sd_start(gspca_dev);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* Ensure the QX3 illuminators' states are restored upon resume,
|
||
|
or disable the illuminator controls, if this isn't a QX3 */
|
||
|
if (sd->params.qx3.qx3_detected)
|
||
|
command_setlights(gspca_dev);
|
||
|
|
||
|
sd_stopN(gspca_dev);
|
||
|
|
||
|
PDEBUG(D_PROBE, "CPIA Version: %d.%02d (%d.%d)",
|
||
|
sd->params.version.firmwareVersion,
|
||
|
sd->params.version.firmwareRevision,
|
||
|
sd->params.version.vcVersion,
|
||
|
sd->params.version.vcRevision);
|
||
|
PDEBUG(D_PROBE, "CPIA PnP-ID: %04x:%04x:%04x",
|
||
|
sd->params.pnpID.vendor, sd->params.pnpID.product,
|
||
|
sd->params.pnpID.deviceRevision);
|
||
|
PDEBUG(D_PROBE, "VP-Version: %d.%d %04x",
|
||
|
sd->params.vpVersion.vpVersion,
|
||
|
sd->params.vpVersion.vpRevision,
|
||
|
sd->params.vpVersion.cameraHeadID);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
|
||
|
u8 *data,
|
||
|
int len)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
/* Check for SOF */
|
||
|
if (len >= 64 &&
|
||
|
data[0] == MAGIC_0 && data[1] == MAGIC_1 &&
|
||
|
data[16] == sd->params.format.videoSize &&
|
||
|
data[17] == sd->params.format.subSample &&
|
||
|
data[18] == sd->params.format.yuvOrder &&
|
||
|
data[24] == sd->params.roi.colStart &&
|
||
|
data[25] == sd->params.roi.colEnd &&
|
||
|
data[26] == sd->params.roi.rowStart &&
|
||
|
data[27] == sd->params.roi.rowEnd) {
|
||
|
u8 *image;
|
||
|
|
||
|
atomic_set(&sd->cam_exposure, data[39] * 2);
|
||
|
atomic_set(&sd->fps, data[41]);
|
||
|
|
||
|
/* Check for proper EOF for last frame */
|
||
|
image = gspca_dev->image;
|
||
|
if (image != NULL &&
|
||
|
gspca_dev->image_len > 4 &&
|
||
|
image[gspca_dev->image_len - 4] == 0xff &&
|
||
|
image[gspca_dev->image_len - 3] == 0xff &&
|
||
|
image[gspca_dev->image_len - 2] == 0xff &&
|
||
|
image[gspca_dev->image_len - 1] == 0xff)
|
||
|
gspca_frame_add(gspca_dev, LAST_PACKET,
|
||
|
NULL, 0);
|
||
|
|
||
|
gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
|
||
|
}
|
||
|
|
||
|
static void sd_dq_callback(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
||
|
/* Set the normal compression settings once we have captured a
|
||
|
few uncompressed frames (and AEC has hopefully settled) */
|
||
|
if (sd->first_frame) {
|
||
|
sd->first_frame--;
|
||
|
if (sd->first_frame == 0)
|
||
|
command_setcompression(gspca_dev);
|
||
|
}
|
||
|
|
||
|
/* Switch flicker control back on if it got turned off */
|
||
|
restart_flicker(gspca_dev);
|
||
|
|
||
|
/* If AEC is enabled, monitor the exposure and
|
||
|
adjust the sensor frame rate if needed */
|
||
|
if (sd->params.exposure.expMode == 2)
|
||
|
monitor_exposure(gspca_dev);
|
||
|
|
||
|
/* Update our knowledge of the camera state */
|
||
|
do_command(gspca_dev, CPIA_COMMAND_GetExposure, 0, 0, 0, 0);
|
||
|
do_command(gspca_dev, CPIA_COMMAND_ReadMCPorts, 0, 0, 0, 0);
|
||
|
}
|
||
|
|
||
|
static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
|
||
|
{
|
||
|
struct gspca_dev *gspca_dev =
|
||
|
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
|
||
|
struct sd *sd = (struct sd *)gspca_dev;
|
||
|
|
||
|
gspca_dev->usb_err = 0;
|
||
|
|
||
|
if (!gspca_dev->streaming && ctrl->id != V4L2_CID_POWER_LINE_FREQUENCY)
|
||
|
return 0;
|
||
|
|
||
|
switch (ctrl->id) {
|
||
|
case V4L2_CID_BRIGHTNESS:
|
||
|
sd->params.colourParams.brightness = ctrl->val;
|
||
|
sd->params.flickerControl.allowableOverExposure =
|
||
|
find_over_exposure(sd->params.colourParams.brightness);
|
||
|
gspca_dev->usb_err = command_setcolourparams(gspca_dev);
|
||
|
if (!gspca_dev->usb_err)
|
||
|
gspca_dev->usb_err = command_setflickerctrl(gspca_dev);
|
||
|
break;
|
||
|
case V4L2_CID_CONTRAST:
|
||
|
sd->params.colourParams.contrast = ctrl->val;
|
||
|
gspca_dev->usb_err = command_setcolourparams(gspca_dev);
|
||
|
break;
|
||
|
case V4L2_CID_SATURATION:
|
||
|
sd->params.colourParams.saturation = ctrl->val;
|
||
|
gspca_dev->usb_err = command_setcolourparams(gspca_dev);
|
||
|
break;
|
||
|
case V4L2_CID_POWER_LINE_FREQUENCY:
|
||
|
sd->mainsFreq = ctrl->val == V4L2_CID_POWER_LINE_FREQUENCY_60HZ;
|
||
|
sd->params.flickerControl.coarseJump =
|
||
|
flicker_jumps[sd->mainsFreq]
|
||
|
[sd->params.sensorFps.baserate]
|
||
|
[sd->params.sensorFps.divisor];
|
||
|
|
||
|
gspca_dev->usb_err = set_flicker(gspca_dev,
|
||
|
ctrl->val != V4L2_CID_POWER_LINE_FREQUENCY_DISABLED,
|
||
|
gspca_dev->streaming);
|
||
|
break;
|
||
|
case V4L2_CID_ILLUMINATORS_1:
|
||
|
sd->params.qx3.bottomlight = ctrl->val;
|
||
|
gspca_dev->usb_err = command_setlights(gspca_dev);
|
||
|
break;
|
||
|
case V4L2_CID_ILLUMINATORS_2:
|
||
|
sd->params.qx3.toplight = ctrl->val;
|
||
|
gspca_dev->usb_err = command_setlights(gspca_dev);
|
||
|
break;
|
||
|
case CPIA1_CID_COMP_TARGET:
|
||
|
sd->params.compressionTarget.frTargeting = ctrl->val;
|
||
|
gspca_dev->usb_err = command_setcompressiontarget(gspca_dev);
|
||
|
break;
|
||
|
}
|
||
|
return gspca_dev->usb_err;
|
||
|
}
|
||
|
|
||
|
static const struct v4l2_ctrl_ops sd_ctrl_ops = {
|
||
|
.s_ctrl = sd_s_ctrl,
|
||
|
};
|
||
|
|
||
|
static int sd_init_controls(struct gspca_dev *gspca_dev)
|
||
|
{
|
||
|
struct sd *sd = (struct sd *)gspca_dev;
|
||
|
struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
|
||
|
static const char * const comp_target_menu[] = {
|
||
|
"Quality",
|
||
|
"Framerate",
|
||
|
NULL
|
||
|
};
|
||
|
static const struct v4l2_ctrl_config comp_target = {
|
||
|
.ops = &sd_ctrl_ops,
|
||
|
.id = CPIA1_CID_COMP_TARGET,
|
||
|
.type = V4L2_CTRL_TYPE_MENU,
|
||
|
.name = "Compression Target",
|
||
|
.qmenu = comp_target_menu,
|
||
|
.max = 1,
|
||
|
.def = COMP_TARGET_DEF,
|
||
|
};
|
||
|
|
||
|
gspca_dev->vdev.ctrl_handler = hdl;
|
||
|
v4l2_ctrl_handler_init(hdl, 7);
|
||
|
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||
|
V4L2_CID_BRIGHTNESS, 0, 100, 1, BRIGHTNESS_DEF);
|
||
|
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||
|
V4L2_CID_CONTRAST, 0, 96, 8, CONTRAST_DEF);
|
||
|
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||
|
V4L2_CID_SATURATION, 0, 100, 1, SATURATION_DEF);
|
||
|
sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
|
||
|
V4L2_CID_POWER_LINE_FREQUENCY,
|
||
|
V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0,
|
||
|
FREQ_DEF);
|
||
|
if (sd->params.qx3.qx3_detected) {
|
||
|
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||
|
V4L2_CID_ILLUMINATORS_1, 0, 1, 1,
|
||
|
ILLUMINATORS_1_DEF);
|
||
|
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||
|
V4L2_CID_ILLUMINATORS_2, 0, 1, 1,
|
||
|
ILLUMINATORS_2_DEF);
|
||
|
}
|
||
|
v4l2_ctrl_new_custom(hdl, &comp_target, NULL);
|
||
|
|
||
|
if (hdl->error) {
|
||
|
pr_err("Could not initialize controls\n");
|
||
|
return hdl->error;
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* sub-driver description */
|
||
|
static const struct sd_desc sd_desc = {
|
||
|
.name = MODULE_NAME,
|
||
|
.config = sd_config,
|
||
|
.init = sd_init,
|
||
|
.init_controls = sd_init_controls,
|
||
|
.start = sd_start,
|
||
|
.stopN = sd_stopN,
|
||
|
.dq_callback = sd_dq_callback,
|
||
|
.pkt_scan = sd_pkt_scan,
|
||
|
#if IS_ENABLED(CONFIG_INPUT)
|
||
|
.other_input = 1,
|
||
|
#endif
|
||
|
};
|
||
|
|
||
|
/* -- module initialisation -- */
|
||
|
static const struct usb_device_id device_table[] = {
|
||
|
{USB_DEVICE(0x0553, 0x0002)},
|
||
|
{USB_DEVICE(0x0813, 0x0001)},
|
||
|
{}
|
||
|
};
|
||
|
MODULE_DEVICE_TABLE(usb, device_table);
|
||
|
|
||
|
/* -- device connect -- */
|
||
|
static int sd_probe(struct usb_interface *intf,
|
||
|
const struct usb_device_id *id)
|
||
|
{
|
||
|
return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
|
||
|
THIS_MODULE);
|
||
|
}
|
||
|
|
||
|
static struct usb_driver sd_driver = {
|
||
|
.name = MODULE_NAME,
|
||
|
.id_table = device_table,
|
||
|
.probe = sd_probe,
|
||
|
.disconnect = gspca_disconnect,
|
||
|
#ifdef CONFIG_PM
|
||
|
.suspend = gspca_suspend,
|
||
|
.resume = gspca_resume,
|
||
|
.reset_resume = gspca_resume,
|
||
|
#endif
|
||
|
};
|
||
|
|
||
|
module_usb_driver(sd_driver);
|