diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 07:13:22 +0400 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 23:25:07 +0400 |
commit | 0c0d06cac63ee327ceaab4b5ffe2206574ab86bd (patch) | |
tree | e759f0dc3185d97f2a0c6b5cd5e32ea6faa74d40 /drivers/media/video/gspca/cpia1.c | |
parent | 84cfe9e79bd5ac11c963f4841158454fefa872f6 (diff) | |
download | linux-0c0d06cac63ee327ceaab4b5ffe2206574ab86bd.tar.xz |
[media] rename most media/video usb drivers to media/usb
Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca/cpia1.c')
-rw-r--r-- | drivers/media/video/gspca/cpia1.c | 1905 |
1 files changed, 0 insertions, 1905 deletions
diff --git a/drivers/media/video/gspca/cpia1.c b/drivers/media/video/gspca/cpia1.c deleted file mode 100644 index 2499a881d9a3..000000000000 --- a/drivers/media/video/gspca/cpia1.c +++ /dev/null @@ -1,1905 +0,0 @@ -/* - * cpia CPiA (1) gspca driver - * - * Copyright (C) 2010-2011 Hans de Goede <hdegoede@redhat.com> - * - * This module is adapted from the in kernel v4l1 cpia driver which is : - * - * (C) Copyright 1999-2000 Peter Pregler - * (C) Copyright 1999-2000 Scott J. Bertin - * (C) Copyright 1999-2000 Johannes Erdfelt <johannes@erdfelt.com> - * (C) Copyright 2000 STMicroelectronics - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#define MODULE_NAME "cpia1" - -#include <linux/input.h> -#include "gspca.h" - -MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); -MODULE_DESCRIPTION("Vision CPiA"); -MODULE_LICENSE("GPL"); - -/* constant value's */ -#define MAGIC_0 0x19 -#define MAGIC_1 0x68 -#define DATA_IN 0xc0 -#define DATA_OUT 0x40 -#define VIDEOSIZE_QCIF 0 /* 176x144 */ -#define VIDEOSIZE_CIF 1 /* 352x288 */ -#define SUBSAMPLE_420 0 -#define SUBSAMPLE_422 1 -#define YUVORDER_YUYV 0 -#define YUVORDER_UYVY 1 -#define NOT_COMPRESSED 0 -#define COMPRESSED 1 -#define NO_DECIMATION 0 -#define DECIMATION_ENAB 1 -#define EOI 0xff /* End Of Image */ -#define EOL 0xfd /* End Of Line */ -#define FRAME_HEADER_SIZE 64 - -/* Image grab modes */ -#define CPIA_GRAB_SINGLE 0 -#define CPIA_GRAB_CONTINEOUS 1 - -/* Compression parameters */ -#define CPIA_COMPRESSION_NONE 0 -#define CPIA_COMPRESSION_AUTO 1 -#define CPIA_COMPRESSION_MANUAL 2 -#define CPIA_COMPRESSION_TARGET_QUALITY 0 -#define CPIA_COMPRESSION_TARGET_FRAMERATE 1 - -/* Return offsets for GetCameraState */ -#define SYSTEMSTATE 0 -#define GRABSTATE 1 -#define STREAMSTATE 2 -#define FATALERROR 3 -#define CMDERROR 4 -#define DEBUGFLAGS 5 -#define VPSTATUS 6 -#define ERRORCODE 7 - -/* SystemState */ -#define UNINITIALISED_STATE 0 -#define PASS_THROUGH_STATE 1 -#define LO_POWER_STATE 2 -#define HI_POWER_STATE 3 -#define WARM_BOOT_STATE 4 - -/* GrabState */ -#define GRAB_IDLE 0 -#define GRAB_ACTIVE 1 -#define GRAB_DONE 2 - -/* StreamState */ -#define STREAM_NOT_READY 0 -#define STREAM_READY 1 -#define STREAM_OPEN 2 -#define STREAM_PAUSED 3 -#define STREAM_FINISHED 4 - -/* Fatal Error, CmdError, and DebugFlags */ -#define CPIA_FLAG 1 -#define SYSTEM_FLAG 2 -#define INT_CTRL_FLAG 4 -#define PROCESS_FLAG 8 -#define COM_FLAG 16 -#define VP_CTRL_FLAG 32 -#define CAPTURE_FLAG 64 -#define DEBUG_FLAG 128 - -/* VPStatus */ -#define VP_STATE_OK 0x00 - -#define VP_STATE_FAILED_VIDEOINIT 0x01 -#define VP_STATE_FAILED_AECACBINIT 0x02 -#define VP_STATE_AEC_MAX 0x04 -#define VP_STATE_ACB_BMAX 0x08 - -#define VP_STATE_ACB_RMIN 0x10 -#define VP_STATE_ACB_GMIN 0x20 -#define VP_STATE_ACB_RMAX 0x40 -#define VP_STATE_ACB_GMAX 0x80 - -/* default (minimum) compensation values */ -#define COMP_RED 220 -#define COMP_GREEN1 214 -#define COMP_GREEN2 COMP_GREEN1 -#define COMP_BLUE 230 - -/* exposure status */ -#define EXPOSURE_VERY_LIGHT 0 -#define EXPOSURE_LIGHT 1 -#define EXPOSURE_NORMAL 2 -#define EXPOSURE_DARK 3 -#define EXPOSURE_VERY_DARK 4 - -#define CPIA_MODULE_CPIA (0 << 5) -#define CPIA_MODULE_SYSTEM (1 << 5) -#define CPIA_MODULE_VP_CTRL (5 << 5) -#define CPIA_MODULE_CAPTURE (6 << 5) -#define CPIA_MODULE_DEBUG (7 << 5) - -#define INPUT (DATA_IN << 8) -#define OUTPUT (DATA_OUT << 8) - -#define CPIA_COMMAND_GetCPIAVersion (INPUT | CPIA_MODULE_CPIA | 1) -#define CPIA_COMMAND_GetPnPID (INPUT | CPIA_MODULE_CPIA | 2) -#define CPIA_COMMAND_GetCameraStatus (INPUT | CPIA_MODULE_CPIA | 3) -#define CPIA_COMMAND_GotoHiPower (OUTPUT | CPIA_MODULE_CPIA | 4) -#define CPIA_COMMAND_GotoLoPower (OUTPUT | CPIA_MODULE_CPIA | 5) -#define CPIA_COMMAND_GotoSuspend (OUTPUT | CPIA_MODULE_CPIA | 7) -#define CPIA_COMMAND_GotoPassThrough (OUTPUT | CPIA_MODULE_CPIA | 8) -#define CPIA_COMMAND_ModifyCameraStatus (OUTPUT | CPIA_MODULE_CPIA | 10) - -#define CPIA_COMMAND_ReadVCRegs (INPUT | CPIA_MODULE_SYSTEM | 1) -#define CPIA_COMMAND_WriteVCReg (OUTPUT | CPIA_MODULE_SYSTEM | 2) -#define CPIA_COMMAND_ReadMCPorts (INPUT | CPIA_MODULE_SYSTEM | 3) -#define CPIA_COMMAND_WriteMCPort (OUTPUT | CPIA_MODULE_SYSTEM | 4) -#define CPIA_COMMAND_SetBaudRate (OUTPUT | CPIA_MODULE_SYSTEM | 5) -#define CPIA_COMMAND_SetECPTiming (OUTPUT | CPIA_MODULE_SYSTEM | 6) -#define CPIA_COMMAND_ReadIDATA (INPUT | CPIA_MODULE_SYSTEM | 7) -#define CPIA_COMMAND_WriteIDATA (OUTPUT | CPIA_MODULE_SYSTEM | 8) -#define CPIA_COMMAND_GenericCall (OUTPUT | CPIA_MODULE_SYSTEM | 9) -#define CPIA_COMMAND_I2CStart (OUTPUT | CPIA_MODULE_SYSTEM | 10) -#define CPIA_COMMAND_I2CStop (OUTPUT | CPIA_MODULE_SYSTEM | 11) -#define CPIA_COMMAND_I2CWrite (OUTPUT | CPIA_MODULE_SYSTEM | 12) -#define CPIA_COMMAND_I2CRead (INPUT | CPIA_MODULE_SYSTEM | 13) - -#define CPIA_COMMAND_GetVPVersion (INPUT | CPIA_MODULE_VP_CTRL | 1) -#define CPIA_COMMAND_ResetFrameCounter (INPUT | CPIA_MODULE_VP_CTRL | 2) -#define CPIA_COMMAND_SetColourParams (OUTPUT | CPIA_MODULE_VP_CTRL | 3) -#define CPIA_COMMAND_SetExposure (OUTPUT | CPIA_MODULE_VP_CTRL | 4) -#define CPIA_COMMAND_SetColourBalance (OUTPUT | CPIA_MODULE_VP_CTRL | 6) -#define CPIA_COMMAND_SetSensorFPS (OUTPUT | CPIA_MODULE_VP_CTRL | 7) -#define CPIA_COMMAND_SetVPDefaults (OUTPUT | CPIA_MODULE_VP_CTRL | 8) -#define CPIA_COMMAND_SetApcor (OUTPUT | CPIA_MODULE_VP_CTRL | 9) -#define CPIA_COMMAND_SetFlickerCtrl (OUTPUT | CPIA_MODULE_VP_CTRL | 10) -#define CPIA_COMMAND_SetVLOffset (OUTPUT | CPIA_MODULE_VP_CTRL | 11) -#define CPIA_COMMAND_GetColourParams (INPUT | CPIA_MODULE_VP_CTRL | 16) -#define CPIA_COMMAND_GetColourBalance (INPUT | CPIA_MODULE_VP_CTRL | 17) -#define CPIA_COMMAND_GetExposure (INPUT | CPIA_MODULE_VP_CTRL | 18) -#define CPIA_COMMAND_SetSensorMatrix (OUTPUT | CPIA_MODULE_VP_CTRL | 19) -#define CPIA_COMMAND_ColourBars (OUTPUT | CPIA_MODULE_VP_CTRL | 25) -#define CPIA_COMMAND_ReadVPRegs (INPUT | CPIA_MODULE_VP_CTRL | 30) -#define CPIA_COMMAND_WriteVPReg (OUTPUT | CPIA_MODULE_VP_CTRL | 31) - -#define CPIA_COMMAND_GrabFrame (OUTPUT | CPIA_MODULE_CAPTURE | 1) -#define CPIA_COMMAND_UploadFrame (OUTPUT | CPIA_MODULE_CAPTURE | 2) -#define CPIA_COMMAND_SetGrabMode (OUTPUT | CPIA_MODULE_CAPTURE | 3) -#define CPIA_COMMAND_InitStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 4) -#define CPIA_COMMAND_FiniStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 5) -#define CPIA_COMMAND_StartStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 6) -#define CPIA_COMMAND_EndStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 7) -#define CPIA_COMMAND_SetFormat (OUTPUT | CPIA_MODULE_CAPTURE | 8) -#define CPIA_COMMAND_SetROI (OUTPUT | CPIA_MODULE_CAPTURE | 9) -#define CPIA_COMMAND_SetCompression (OUTPUT | CPIA_MODULE_CAPTURE | 10) -#define CPIA_COMMAND_SetCompressionTarget (OUTPUT | CPIA_MODULE_CAPTURE | 11) -#define CPIA_COMMAND_SetYUVThresh (OUTPUT | CPIA_MODULE_CAPTURE | 12) -#define CPIA_COMMAND_SetCompressionParams (OUTPUT | CPIA_MODULE_CAPTURE | 13) -#define CPIA_COMMAND_DiscardFrame (OUTPUT | CPIA_MODULE_CAPTURE | 14) -#define CPIA_COMMAND_GrabReset (OUTPUT | CPIA_MODULE_CAPTURE | 15) - -#define CPIA_COMMAND_OutputRS232 (OUTPUT | CPIA_MODULE_DEBUG | 1) -#define CPIA_COMMAND_AbortProcess (OUTPUT | CPIA_MODULE_DEBUG | 4) -#define CPIA_COMMAND_SetDramPage (OUTPUT | CPIA_MODULE_DEBUG | 5) -#define CPIA_COMMAND_StartDramUpload (OUTPUT | CPIA_MODULE_DEBUG | 6) -#define CPIA_COMMAND_StartDummyDtream (OUTPUT | CPIA_MODULE_DEBUG | 8) -#define CPIA_COMMAND_AbortStream (OUTPUT | CPIA_MODULE_DEBUG | 9) -#define CPIA_COMMAND_DownloadDRAM (OUTPUT | CPIA_MODULE_DEBUG | 10) -#define CPIA_COMMAND_Null (OUTPUT | CPIA_MODULE_DEBUG | 11) - -#define ROUND_UP_EXP_FOR_FLICKER 15 - -/* Constants for automatic frame rate adjustment */ -#define MAX_EXP 302 -#define MAX_EXP_102 255 -#define LOW_EXP 140 -#define VERY_LOW_EXP 70 -#define TC 94 -#define EXP_ACC_DARK 50 -#define EXP_ACC_LIGHT 90 -#define HIGH_COMP_102 160 -#define MAX_COMP 239 -#define DARK_TIME 3 -#define LIGHT_TIME 3 - -#define FIRMWARE_VERSION(x, y) (sd->params.version.firmwareVersion == (x) && \ - sd->params.version.firmwareRevision == (y)) - -#define CPIA1_CID_COMP_TARGET (V4L2_CTRL_CLASS_USER + 0x1000) -#define BRIGHTNESS_DEF 50 -#define CONTRAST_DEF 48 -#define SATURATION_DEF 50 -#define FREQ_DEF V4L2_CID_POWER_LINE_FREQUENCY_50HZ -#define ILLUMINATORS_1_DEF 0 -#define ILLUMINATORS_2_DEF 0 -#define COMP_TARGET_DEF CPIA_COMPRESSION_TARGET_QUALITY - -/* Developer's Guide Table 5 p 3-34 - * indexed by [mains][sensorFps.baserate][sensorFps.divisor]*/ -static u8 flicker_jumps[2][2][4] = -{ { { 76, 38, 19, 9 }, { 92, 46, 23, 11 } }, - { { 64, 32, 16, 8 }, { 76, 38, 19, 9} } -}; - -struct cam_params { - struct { - u8 firmwareVersion; - u8 firmwareRevision; - u8 vcVersion; - u8 vcRevision; - } version; - struct { - u16 vendor; - u16 product; - u16 deviceRevision; - } pnpID; - struct { - u8 vpVersion; - u8 vpRevision; - u16 cameraHeadID; - } vpVersion; - struct { - u8 systemState; - u8 grabState; - u8 streamState; - u8 fatalError; - u8 cmdError; - u8 debugFlags; - u8 vpStatus; - u8 errorCode; - } status; - struct { - u8 brightness; - u8 contrast; - u8 saturation; - } colourParams; - struct { - u8 gainMode; - u8 expMode; - u8 compMode; - u8 centreWeight; - u8 gain; - u8 fineExp; - u8 coarseExpLo; - u8 coarseExpHi; - u8 redComp; - u8 green1Comp; - u8 green2Comp; - u8 blueComp; - } exposure; - struct { - u8 balanceMode; - u8 redGain; - u8 greenGain; - u8 blueGain; - } colourBalance; - struct { - u8 divisor; - u8 baserate; - } sensorFps; - struct { - u8 gain1; - u8 gain2; - u8 gain4; - u8 gain8; - } apcor; - struct { - u8 disabled; - u8 flickerMode; - u8 coarseJump; - u8 allowableOverExposure; - } flickerControl; - struct { - u8 gain1; - u8 gain2; - u8 gain4; - u8 gain8; - } vlOffset; - struct { - u8 mode; - u8 decimation; - } compression; - struct { - u8 frTargeting; - u8 targetFR; - u8 targetQ; - } compressionTarget; - struct { - u8 yThreshold; - u8 uvThreshold; - } yuvThreshold; - struct { - u8 hysteresis; - u8 threshMax; - u8 smallStep; - u8 largeStep; - u8 decimationHysteresis; - u8 frDiffStepThresh; - u8 qDiffStepThresh; - u8 decimationThreshMod; - } compressionParams; - struct { - u8 videoSize; /* CIF/QCIF */ - u8 subSample; - u8 yuvOrder; - } format; - struct { /* Intel QX3 specific data */ - u8 qx3_detected; /* a QX3 is present */ - u8 toplight; /* top light lit , R/W */ - u8 bottomlight; /* bottom light lit, R/W */ - u8 button; /* snapshot button pressed (R/O) */ - u8 cradled; /* microscope is in cradle (R/O) */ - } qx3; - struct { - u8 colStart; /* skip first 8*colStart pixels */ - u8 colEnd; /* finish at 8*colEnd pixels */ - u8 rowStart; /* skip first 4*rowStart lines */ - u8 rowEnd; /* finish at 4*rowEnd lines */ - } roi; - u8 ecpTiming; - u8 streamStartLine; -}; - -/* specific webcam descriptor */ -struct sd { - struct gspca_dev gspca_dev; /* !! must be the first item */ - struct cam_params params; /* camera settings */ - - atomic_t cam_exposure; - atomic_t fps; - int exposure_count; - u8 exposure_status; - struct v4l2_ctrl *freq; - u8 mainsFreq; /* 0 = 50hz, 1 = 60hz */ - u8 first_frame; -}; - -static const struct v4l2_pix_format mode[] = { - {160, 120, V4L2_PIX_FMT_CPIA1, V4L2_FIELD_NONE, - /* The sizeimage is trial and error, as with low framerates - the camera will pad out usb frames, making the image - data larger then strictly necessary */ - .bytesperline = 160, - .sizeimage = 65536, - .colorspace = V4L2_COLORSPACE_SRGB, - .priv = 3}, - {176, 144, V4L2_PIX_FMT_CPIA1, V4L2_FIELD_NONE, - .bytesperline = 172, - .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 { - PDEBUG(D_ERR, "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 defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) - 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 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) { - PDEBUG(D_ERR, - "unexpected state after lo power cmd: %02x", - sd->params.status.systemState); - printstatus(&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; - - do_command(gspca_dev, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0); - if (ret) - return ret; - - if (sd->params.status.systemState != HI_POWER_STATE) { - PDEBUG(D_ERR, "unexpected state after hi power cmd: %02x", - sd->params.status.systemState); - printstatus(&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) { - PDEBUG(D_ERR, "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) { - PDEBUG(D_ERR, "unexpected systemstate: %02x", - sd->params.status.systemState); - printstatus(&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) { - PDEBUG(D_ERR, "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->width >> 3); - sd->params.roi.rowEnd = sd->params.roi.rowStart + - (gspca_dev->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 = (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 defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) - /* 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 defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE) - .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); |