--- /dev/null
+/*
+ * cpia CPiA (1) gspca driver
+ *
+ * Copyright (C) 2010 Hans de Goede <hdgoede@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 MODULE_NAME "cpia1"
+
+#include "gspca.h"
+
+MODULE_AUTHOR("Hans de Goede <hdgoede@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))
+
+/* 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;
+ u8 mainsFreq; /* 0 = 50hz, 1 = 60hz */
+ u8 first_frame;
+ u8 freq;
+};
+
+/* V4L2 controls supported by the driver */
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setsaturation(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getsaturation(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setcomptarget(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getcomptarget(struct gspca_dev *gspca_dev, __s32 *val);
+
+static struct ctrl sd_ctrls[] = {
+ {
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Brightness",
+ .minimum = 0,
+ .maximum = 100,
+ .step = 1,
+#define BRIGHTNESS_DEF 50
+ .default_value = BRIGHTNESS_DEF,
+ .flags = 0,
+ },
+ .set = sd_setbrightness,
+ .get = sd_getbrightness,
+ },
+ {
+ {
+ .id = V4L2_CID_CONTRAST,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Contrast",
+ .minimum = 0,
+ .maximum = 96,
+ .step = 8,
+#define CONTRAST_DEF 48
+ .default_value = CONTRAST_DEF,
+ },
+ .set = sd_setcontrast,
+ .get = sd_getcontrast,
+ },
+ {
+ {
+ .id = V4L2_CID_SATURATION,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Saturation",
+ .minimum = 0,
+ .maximum = 100,
+ .step = 1,
+#define SATURATION_DEF 50
+ .default_value = SATURATION_DEF,
+ },
+ .set = sd_setsaturation,
+ .get = sd_getsaturation,
+ },
+ {
+ {
+ .id = V4L2_CID_POWER_LINE_FREQUENCY,
+ .type = V4L2_CTRL_TYPE_MENU,
+ .name = "Light frequency filter",
+ .minimum = 0,
+ .maximum = 2, /* 0: 0, 1: 50Hz, 2:60Hz */
+ .step = 1,
+#define FREQ_DEF 1
+ .default_value = FREQ_DEF,
+ },
+ .set = sd_setfreq,
+ .get = sd_getfreq,
+ },
+ {
+ {
+#define V4L2_CID_COMP_TARGET V4L2_CID_PRIVATE_BASE
+ .id = V4L2_CID_COMP_TARGET,
+ .type = V4L2_CTRL_TYPE_MENU,
+ .name = "Compression Target",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+#define COMP_TARGET_DEF CPIA_COMPRESSION_TARGET_QUALITY
+ .default_value = COMP_TARGET_DEF,
+ },
+ .set = sd_setcomptarget,
+ .get = sd_getcomptarget,
+ },
+};
+
+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)
+ PDEBUG(D_ERR, "usb_control_msg %02x, error %d", 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:
+ if (!sd->params.qx3.qx3_detected)
+ break;
+ /* test button press */
+ sd->params.qx3.button = ((gspca_dev->usb_buf[1] & 0x02) == 0);
+ 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->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->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->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;
+
+ 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);
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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;
+}
+
+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;
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+int command_pause(struct gspca_dev *gspca_dev)
+{
+ return do_command(gspca_dev, CPIA_COMMAND_EndStreamCap, 0, 0, 0, 0);
+}
+
+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);
+}
+
+int command_setlights(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int ret, p1, p2;
+
+ if (!sd->params.qx3.qx3_detected)
+ return 0;
+
+ 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, gain, coarseL, 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) {
+ PDEBUG(D_ERR, "ReadVPRegs(30,4,9,8) - failed: %d", ret);
+ return;
+ }
+ exp_acc = gspca_dev->usb_buf[0];
+ bcomp = gspca_dev->usb_buf[1];
+ gain = gspca_dev->usb_buf[2];
+ coarseL = gspca_dev->usb_buf[3];
+
+ 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 < 3) {
+
+ /* 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 < 3) {
+
+ /* 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 cam *cam;
+
+ 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);
+
+ sd_setfreq(gspca_dev, FREQ_DEF);
+
+ 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);
+ 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);
+
+ /* 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)
+{
+ 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);
+}
+
+/* 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;
+
+ 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) {
+ struct gspca_frame *frame = gspca_get_i_frame(gspca_dev);
+
+ atomic_set(&sd->cam_exposure, data[39] * 2);
+ atomic_set(&sd->fps, data[41]);
+
+ if (frame == NULL) {
+ gspca_dev->last_packet_type = DISCARD_PACKET;
+ return;
+ }
+
+ /* Check for proper EOF for last frame */
+ if ((frame->data_end - frame->data) > 4 &&
+ frame->data_end[-4] == 0xff &&
+ frame->data_end[-3] == 0xff &&
+ frame->data_end[-2] == 0xff &&
+ frame->data_end[-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);
+ if (sd->params.qx3.qx3_detected)
+ do_command(gspca_dev, CPIA_COMMAND_ReadMCPorts, 0, 0, 0, 0);
+}
+
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int ret;
+
+ sd->params.colourParams.brightness = val;
+ sd->params.flickerControl.allowableOverExposure =
+ find_over_exposure(sd->params.colourParams.brightness);
+ if (gspca_dev->streaming) {
+ ret = command_setcolourparams(gspca_dev);
+ if (ret)
+ return ret;
+ return command_setflickerctrl(gspca_dev);
+ }
+ return 0;
+}
+
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->params.colourParams.brightness;
+ return 0;
+}
+
+static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->params.colourParams.contrast = val;
+ if (gspca_dev->streaming)
+ return command_setcolourparams(gspca_dev);
+
+ return 0;
+}
+
+static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->params.colourParams.contrast;
+ return 0;
+}
+
+static int sd_setsaturation(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->params.colourParams.saturation = val;
+ if (gspca_dev->streaming)
+ return command_setcolourparams(gspca_dev);
+
+ return 0;
+}
+
+static int sd_getsaturation(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->params.colourParams.saturation;
+ return 0;
+}
+
+static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int on;
+
+ switch (val) {
+ case 0: /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
+ on = 0;
+ break;
+ case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
+ on = 1;
+ sd->mainsFreq = 0;
+ break;
+ case 2: /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
+ on = 1;
+ sd->mainsFreq = 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ sd->freq = val;
+ sd->params.flickerControl.coarseJump =
+ flicker_jumps[sd->mainsFreq]
+ [sd->params.sensorFps.baserate]
+ [sd->params.sensorFps.divisor];
+
+ return set_flicker(gspca_dev, on, gspca_dev->streaming);
+}
+
+static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->freq;
+ return 0;
+}
+
+static int sd_setcomptarget(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->params.compressionTarget.frTargeting = val;
+ if (gspca_dev->streaming)
+ return command_setcompressiontarget(gspca_dev);
+
+ return 0;
+}
+
+static int sd_getcomptarget(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->params.compressionTarget.frTargeting;
+ return 0;
+}
+
+static int sd_querymenu(struct gspca_dev *gspca_dev,
+ struct v4l2_querymenu *menu)
+{
+ switch (menu->id) {
+ case V4L2_CID_POWER_LINE_FREQUENCY:
+ switch (menu->index) {
+ case 0: /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
+ strcpy((char *) menu->name, "NoFliker");
+ return 0;
+ case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
+ strcpy((char *) menu->name, "50 Hz");
+ return 0;
+ case 2: /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
+ strcpy((char *) menu->name, "60 Hz");
+ return 0;
+ }
+ break;
+ case V4L2_CID_COMP_TARGET:
+ switch (menu->index) {
+ case CPIA_COMPRESSION_TARGET_QUALITY:
+ strcpy((char *) menu->name, "Quality");
+ return 0;
+ case CPIA_COMPRESSION_TARGET_FRAMERATE:
+ strcpy((char *) menu->name, "Framerate");
+ return 0;
+ }
+ break;
+ }
+ return -EINVAL;
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+ .name = MODULE_NAME,
+ .ctrls = sd_ctrls,
+ .nctrls = ARRAY_SIZE(sd_ctrls),
+ .config = sd_config,
+ .init = sd_init,
+ .start = sd_start,
+ .stopN = sd_stopN,
+ .dq_callback = sd_dq_callback,
+ .pkt_scan = sd_pkt_scan,
+ .querymenu = sd_querymenu,
+};
+
+/* -- module initialisation -- */
+static const __devinitdata 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,
+#endif
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+ int ret;
+ ret = usb_register(&sd_driver);
+ if (ret < 0)
+ return ret;
+ PDEBUG(D_PROBE, "registered");
+ return 0;
+}
+static void __exit sd_mod_exit(void)
+{
+ usb_deregister(&sd_driver);
+ PDEBUG(D_PROBE, "deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
projects / mv-sheeva.git / commitdiff