+++ /dev/null
-/*
- * cpia CPiA driver
- *
- * Supports CPiA based Video Camera's.
- *
- * (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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/* define _CPIA_DEBUG_ for verbose debug output (see cpia.h) */
-/* #define _CPIA_DEBUG_ 1 */
-
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/vmalloc.h>
-#include <linux/sched.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/proc_fs.h>
-#include <linux/ctype.h>
-#include <linux/pagemap.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-#include <linux/mutex.h>
-
-#include "cpia.h"
-
-static int video_nr = -1;
-
-#ifdef MODULE
-module_param(video_nr, int, 0);
-MODULE_AUTHOR("Scott J. Bertin <sbertin@securenym.net> & Peter Pregler <Peter_Pregler@email.com> & Johannes Erdfelt <johannes@erdfelt.com>");
-MODULE_DESCRIPTION("V4L-driver for Vision CPiA based cameras");
-MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("video");
-#endif
-
-static unsigned short colorspace_conv;
-module_param(colorspace_conv, ushort, 0444);
-MODULE_PARM_DESC(colorspace_conv,
- " Colorspace conversion:"
- "\n 0 = disable, 1 = enable"
- "\n Default value is 0"
- );
-
-#define ABOUT "V4L-Driver for Vision CPiA based cameras"
-
-#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)
-
-enum {
- FRAME_READY, /* Ready to grab into */
- FRAME_GRABBING, /* In the process of being grabbed into */
- FRAME_DONE, /* Finished grabbing, but not been synced yet */
- FRAME_UNUSED, /* Unused (no MCAPTURE) */
-};
-
-#define COMMAND_NONE 0x0000
-#define COMMAND_SETCOMPRESSION 0x0001
-#define COMMAND_SETCOMPRESSIONTARGET 0x0002
-#define COMMAND_SETCOLOURPARAMS 0x0004
-#define COMMAND_SETFORMAT 0x0008
-#define COMMAND_PAUSE 0x0010
-#define COMMAND_RESUME 0x0020
-#define COMMAND_SETYUVTHRESH 0x0040
-#define COMMAND_SETECPTIMING 0x0080
-#define COMMAND_SETCOMPRESSIONPARAMS 0x0100
-#define COMMAND_SETEXPOSURE 0x0200
-#define COMMAND_SETCOLOURBALANCE 0x0400
-#define COMMAND_SETSENSORFPS 0x0800
-#define COMMAND_SETAPCOR 0x1000
-#define COMMAND_SETFLICKERCTRL 0x2000
-#define COMMAND_SETVLOFFSET 0x4000
-#define COMMAND_SETLIGHTS 0x8000
-
-#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
-
-/* Maximum number of 10ms loops to wait for the stream to become ready */
-#define READY_TIMEOUT 100
-
-/* 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} }
-};
-
-/* forward declaration of local function */
-static void reset_camera_struct(struct cam_data *cam);
-static int find_over_exposure(int brightness);
-static void set_flicker(struct cam_params *params, volatile u32 *command_flags,
- int on);
-
-
-/**********************************************************************
- *
- * Memory management
- *
- **********************************************************************/
-static void *rvmalloc(unsigned long size)
-{
- void *mem;
- unsigned long adr;
-
- size = PAGE_ALIGN(size);
- mem = vmalloc_32(size);
- if (!mem)
- return NULL;
-
- memset(mem, 0, size); /* Clear the ram out, no junk to the user */
- adr = (unsigned long) mem;
- while (size > 0) {
- SetPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
-
- return mem;
-}
-
-static void rvfree(void *mem, unsigned long size)
-{
- unsigned long adr;
-
- if (!mem)
- return;
-
- adr = (unsigned long) mem;
- while ((long) size > 0) {
- ClearPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
- vfree(mem);
-}
-
-/**********************************************************************
- *
- * /proc interface
- *
- **********************************************************************/
-#ifdef CONFIG_PROC_FS
-static struct proc_dir_entry *cpia_proc_root=NULL;
-
-static int cpia_proc_show(struct seq_file *m, void *v)
-{
- struct cam_data *cam = m->private;
- int tmp;
- char tmpstr[29];
-
- seq_printf(m, "read-only\n-----------------------\n");
- seq_printf(m, "V4L Driver version: %d.%d.%d\n",
- CPIA_MAJ_VER, CPIA_MIN_VER, CPIA_PATCH_VER);
- seq_printf(m, "CPIA Version: %d.%02d (%d.%d)\n",
- cam->params.version.firmwareVersion,
- cam->params.version.firmwareRevision,
- cam->params.version.vcVersion,
- cam->params.version.vcRevision);
- seq_printf(m, "CPIA PnP-ID: %04x:%04x:%04x\n",
- cam->params.pnpID.vendor, cam->params.pnpID.product,
- cam->params.pnpID.deviceRevision);
- seq_printf(m, "VP-Version: %d.%d %04x\n",
- cam->params.vpVersion.vpVersion,
- cam->params.vpVersion.vpRevision,
- cam->params.vpVersion.cameraHeadID);
-
- seq_printf(m, "system_state: %#04x\n",
- cam->params.status.systemState);
- seq_printf(m, "grab_state: %#04x\n",
- cam->params.status.grabState);
- seq_printf(m, "stream_state: %#04x\n",
- cam->params.status.streamState);
- seq_printf(m, "fatal_error: %#04x\n",
- cam->params.status.fatalError);
- seq_printf(m, "cmd_error: %#04x\n",
- cam->params.status.cmdError);
- seq_printf(m, "debug_flags: %#04x\n",
- cam->params.status.debugFlags);
- seq_printf(m, "vp_status: %#04x\n",
- cam->params.status.vpStatus);
- seq_printf(m, "error_code: %#04x\n",
- cam->params.status.errorCode);
- /* QX3 specific entries */
- if (cam->params.qx3.qx3_detected) {
- seq_printf(m, "button: %4d\n",
- cam->params.qx3.button);
- seq_printf(m, "cradled: %4d\n",
- cam->params.qx3.cradled);
- }
- seq_printf(m, "video_size: %s\n",
- cam->params.format.videoSize == VIDEOSIZE_CIF ?
- "CIF " : "QCIF");
- seq_printf(m, "roi: (%3d, %3d) to (%3d, %3d)\n",
- cam->params.roi.colStart*8,
- cam->params.roi.rowStart*4,
- cam->params.roi.colEnd*8,
- cam->params.roi.rowEnd*4);
- seq_printf(m, "actual_fps: %3d\n", cam->fps);
- seq_printf(m, "transfer_rate: %4dkB/s\n",
- cam->transfer_rate);
-
- seq_printf(m, "\nread-write\n");
- seq_printf(m, "----------------------- current min"
- " max default comment\n");
- seq_printf(m, "brightness: %8d %8d %8d %8d\n",
- cam->params.colourParams.brightness, 0, 100, 50);
- if (cam->params.version.firmwareVersion == 1 &&
- cam->params.version.firmwareRevision == 2)
- /* 1-02 firmware limits contrast to 80 */
- tmp = 80;
- else
- tmp = 96;
-
- seq_printf(m, "contrast: %8d %8d %8d %8d"
- " steps of 8\n",
- cam->params.colourParams.contrast, 0, tmp, 48);
- seq_printf(m, "saturation: %8d %8d %8d %8d\n",
- cam->params.colourParams.saturation, 0, 100, 50);
- tmp = (25000+5000*cam->params.sensorFps.baserate)/
- (1<<cam->params.sensorFps.divisor);
- seq_printf(m, "sensor_fps: %4d.%03d %8d %8d %8d\n",
- tmp/1000, tmp%1000, 3, 30, 15);
- seq_printf(m, "stream_start_line: %8d %8d %8d %8d\n",
- 2*cam->params.streamStartLine, 0,
- cam->params.format.videoSize == VIDEOSIZE_CIF ? 288:144,
- cam->params.format.videoSize == VIDEOSIZE_CIF ? 240:120);
- seq_printf(m, "sub_sample: %8s %8s %8s %8s\n",
- cam->params.format.subSample == SUBSAMPLE_420 ?
- "420" : "422", "420", "422", "422");
- seq_printf(m, "yuv_order: %8s %8s %8s %8s\n",
- cam->params.format.yuvOrder == YUVORDER_YUYV ?
- "YUYV" : "UYVY", "YUYV" , "UYVY", "YUYV");
- seq_printf(m, "ecp_timing: %8s %8s %8s %8s\n",
- cam->params.ecpTiming ? "slow" : "normal", "slow",
- "normal", "normal");
-
- if (cam->params.colourBalance.balanceMode == 2) {
- sprintf(tmpstr, "auto");
- } else {
- sprintf(tmpstr, "manual");
- }
- seq_printf(m, "color_balance_mode: %8s %8s %8s"
- " %8s\n", tmpstr, "manual", "auto", "auto");
- seq_printf(m, "red_gain: %8d %8d %8d %8d\n",
- cam->params.colourBalance.redGain, 0, 212, 32);
- seq_printf(m, "green_gain: %8d %8d %8d %8d\n",
- cam->params.colourBalance.greenGain, 0, 212, 6);
- seq_printf(m, "blue_gain: %8d %8d %8d %8d\n",
- cam->params.colourBalance.blueGain, 0, 212, 92);
-
- if (cam->params.version.firmwareVersion == 1 &&
- cam->params.version.firmwareRevision == 2)
- /* 1-02 firmware limits gain to 2 */
- sprintf(tmpstr, "%8d %8d %8d", 1, 2, 2);
- else
- sprintf(tmpstr, "%8d %8d %8d", 1, 8, 2);
-
- if (cam->params.exposure.gainMode == 0)
- seq_printf(m, "max_gain: unknown %28s"
- " powers of 2\n", tmpstr);
- else
- seq_printf(m, "max_gain: %8d %28s"
- " 1,2,4 or 8 \n",
- 1<<(cam->params.exposure.gainMode-1), tmpstr);
-
- switch(cam->params.exposure.expMode) {
- case 1:
- case 3:
- sprintf(tmpstr, "manual");
- break;
- case 2:
- sprintf(tmpstr, "auto");
- break;
- default:
- sprintf(tmpstr, "unknown");
- break;
- }
- seq_printf(m, "exposure_mode: %8s %8s %8s"
- " %8s\n", tmpstr, "manual", "auto", "auto");
- seq_printf(m, "centre_weight: %8s %8s %8s %8s\n",
- (2-cam->params.exposure.centreWeight) ? "on" : "off",
- "off", "on", "on");
- seq_printf(m, "gain: %8d %8d max_gain %8d 1,2,4,8 possible\n",
- 1<<cam->params.exposure.gain, 1, 1);
- if (cam->params.version.firmwareVersion == 1 &&
- cam->params.version.firmwareRevision == 2)
- /* 1-02 firmware limits fineExp/2 to 127 */
- tmp = 254;
- else
- tmp = 510;
-
- seq_printf(m, "fine_exp: %8d %8d %8d %8d\n",
- cam->params.exposure.fineExp*2, 0, tmp, 0);
- if (cam->params.version.firmwareVersion == 1 &&
- cam->params.version.firmwareRevision == 2)
- /* 1-02 firmware limits coarseExpHi to 0 */
- tmp = MAX_EXP_102;
- else
- tmp = MAX_EXP;
-
- seq_printf(m, "coarse_exp: %8d %8d %8d"
- " %8d\n", cam->params.exposure.coarseExpLo+
- 256*cam->params.exposure.coarseExpHi, 0, tmp, 185);
- seq_printf(m, "red_comp: %8d %8d %8d %8d\n",
- cam->params.exposure.redComp, COMP_RED, 255, COMP_RED);
- seq_printf(m, "green1_comp: %8d %8d %8d %8d\n",
- cam->params.exposure.green1Comp, COMP_GREEN1, 255,
- COMP_GREEN1);
- seq_printf(m, "green2_comp: %8d %8d %8d %8d\n",
- cam->params.exposure.green2Comp, COMP_GREEN2, 255,
- COMP_GREEN2);
- seq_printf(m, "blue_comp: %8d %8d %8d %8d\n",
- cam->params.exposure.blueComp, COMP_BLUE, 255, COMP_BLUE);
-
- seq_printf(m, "apcor_gain1: %#8x %#8x %#8x %#8x\n",
- cam->params.apcor.gain1, 0, 0xff, 0x1c);
- seq_printf(m, "apcor_gain2: %#8x %#8x %#8x %#8x\n",
- cam->params.apcor.gain2, 0, 0xff, 0x1a);
- seq_printf(m, "apcor_gain4: %#8x %#8x %#8x %#8x\n",
- cam->params.apcor.gain4, 0, 0xff, 0x2d);
- seq_printf(m, "apcor_gain8: %#8x %#8x %#8x %#8x\n",
- cam->params.apcor.gain8, 0, 0xff, 0x2a);
- seq_printf(m, "vl_offset_gain1: %8d %8d %8d %8d\n",
- cam->params.vlOffset.gain1, 0, 255, 24);
- seq_printf(m, "vl_offset_gain2: %8d %8d %8d %8d\n",
- cam->params.vlOffset.gain2, 0, 255, 28);
- seq_printf(m, "vl_offset_gain4: %8d %8d %8d %8d\n",
- cam->params.vlOffset.gain4, 0, 255, 30);
- seq_printf(m, "vl_offset_gain8: %8d %8d %8d %8d\n",
- cam->params.vlOffset.gain8, 0, 255, 30);
- seq_printf(m, "flicker_control: %8s %8s %8s %8s\n",
- cam->params.flickerControl.flickerMode ? "on" : "off",
- "off", "on", "off");
- seq_printf(m, "mains_frequency: %8d %8d %8d %8d"
- " only 50/60\n",
- cam->mainsFreq ? 60 : 50, 50, 60, 50);
- if(cam->params.flickerControl.allowableOverExposure < 0)
- seq_printf(m, "allowable_overexposure: %4dauto auto %8d auto\n",
- -cam->params.flickerControl.allowableOverExposure,
- 255);
- else
- seq_printf(m, "allowable_overexposure: %8d auto %8d auto\n",
- cam->params.flickerControl.allowableOverExposure,
- 255);
- seq_printf(m, "compression_mode: ");
- switch(cam->params.compression.mode) {
- case CPIA_COMPRESSION_NONE:
- seq_printf(m, "%8s", "none");
- break;
- case CPIA_COMPRESSION_AUTO:
- seq_printf(m, "%8s", "auto");
- break;
- case CPIA_COMPRESSION_MANUAL:
- seq_printf(m, "%8s", "manual");
- break;
- default:
- seq_printf(m, "%8s", "unknown");
- break;
- }
- seq_printf(m, " none,auto,manual auto\n");
- seq_printf(m, "decimation_enable: %8s %8s %8s %8s\n",
- cam->params.compression.decimation ==
- DECIMATION_ENAB ? "on":"off", "off", "on",
- "off");
- seq_printf(m, "compression_target: %9s %9s %9s %9s\n",
- cam->params.compressionTarget.frTargeting ==
- CPIA_COMPRESSION_TARGET_FRAMERATE ?
- "framerate":"quality",
- "framerate", "quality", "quality");
- seq_printf(m, "target_framerate: %8d %8d %8d %8d\n",
- cam->params.compressionTarget.targetFR, 1, 30, 15);
- seq_printf(m, "target_quality: %8d %8d %8d %8d\n",
- cam->params.compressionTarget.targetQ, 1, 64, 5);
- seq_printf(m, "y_threshold: %8d %8d %8d %8d\n",
- cam->params.yuvThreshold.yThreshold, 0, 31, 6);
- seq_printf(m, "uv_threshold: %8d %8d %8d %8d\n",
- cam->params.yuvThreshold.uvThreshold, 0, 31, 6);
- seq_printf(m, "hysteresis: %8d %8d %8d %8d\n",
- cam->params.compressionParams.hysteresis, 0, 255, 3);
- seq_printf(m, "threshold_max: %8d %8d %8d %8d\n",
- cam->params.compressionParams.threshMax, 0, 255, 11);
- seq_printf(m, "small_step: %8d %8d %8d %8d\n",
- cam->params.compressionParams.smallStep, 0, 255, 1);
- seq_printf(m, "large_step: %8d %8d %8d %8d\n",
- cam->params.compressionParams.largeStep, 0, 255, 3);
- seq_printf(m, "decimation_hysteresis: %8d %8d %8d %8d\n",
- cam->params.compressionParams.decimationHysteresis,
- 0, 255, 2);
- seq_printf(m, "fr_diff_step_thresh: %8d %8d %8d %8d\n",
- cam->params.compressionParams.frDiffStepThresh,
- 0, 255, 5);
- seq_printf(m, "q_diff_step_thresh: %8d %8d %8d %8d\n",
- cam->params.compressionParams.qDiffStepThresh,
- 0, 255, 3);
- seq_printf(m, "decimation_thresh_mod: %8d %8d %8d %8d\n",
- cam->params.compressionParams.decimationThreshMod,
- 0, 255, 2);
- /* QX3 specific entries */
- if (cam->params.qx3.qx3_detected) {
- seq_printf(m, "toplight: %8s %8s %8s %8s\n",
- cam->params.qx3.toplight ? "on" : "off",
- "off", "on", "off");
- seq_printf(m, "bottomlight: %8s %8s %8s %8s\n",
- cam->params.qx3.bottomlight ? "on" : "off",
- "off", "on", "off");
- }
-
- return 0;
-}
-
-static int cpia_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, cpia_proc_show, PDE(inode)->data);
-}
-
-static int match(char *checkstr, char **buffer, size_t *count,
- int *find_colon, int *err)
-{
- int ret, colon_found = 1;
- int len = strlen(checkstr);
- ret = (len <= *count && strncmp(*buffer, checkstr, len) == 0);
- if (ret) {
- *buffer += len;
- *count -= len;
- if (*find_colon) {
- colon_found = 0;
- while (*count && (**buffer == ' ' || **buffer == '\t' ||
- (!colon_found && **buffer == ':'))) {
- if (**buffer == ':')
- colon_found = 1;
- --*count;
- ++*buffer;
- }
- if (!*count || !colon_found)
- *err = -EINVAL;
- *find_colon = 0;
- }
- }
- return ret;
-}
-
-static unsigned long int value(char **buffer, size_t *count, int *err)
-{
- char *p;
- unsigned long int ret;
- ret = simple_strtoul(*buffer, &p, 0);
- if (p == *buffer)
- *err = -EINVAL;
- else {
- *count -= p - *buffer;
- *buffer = p;
- }
- return ret;
-}
-
-static ssize_t cpia_proc_write(struct file *file, const char __user *buf,
- size_t count, loff_t *pos)
-{
- struct cam_data *cam = PDE(file->f_path.dentry->d_inode)->data;
- struct cam_params new_params;
- char *page, *buffer;
- int retval, find_colon;
- int size = count;
- unsigned long val = 0;
- u32 command_flags = 0;
- u8 new_mains;
-
- /*
- * This code to copy from buf to page is shamelessly copied
- * from the comx driver
- */
- if (count > PAGE_SIZE) {
- printk(KERN_ERR "count is %zu > %d!!!\n", count, (int)PAGE_SIZE);
- return -ENOSPC;
- }
-
- if (!(page = (char *)__get_free_page(GFP_KERNEL))) return -ENOMEM;
-
- if(copy_from_user(page, buf, count))
- {
- retval = -EFAULT;
- goto out;
- }
-
- if (page[count-1] == '\n')
- page[count-1] = '\0';
- else if (count < PAGE_SIZE)
- page[count] = '\0';
- else if (page[count]) {
- retval = -EINVAL;
- goto out;
- }
-
- buffer = page;
-
- if (mutex_lock_interruptible(&cam->param_lock))
- return -ERESTARTSYS;
-
- /*
- * Skip over leading whitespace
- */
- while (count && isspace(*buffer)) {
- --count;
- ++buffer;
- }
-
- memcpy(&new_params, &cam->params, sizeof(struct cam_params));
- new_mains = cam->mainsFreq;
-
-#define MATCH(x) (match(x, &buffer, &count, &find_colon, &retval))
-#define VALUE (value(&buffer,&count, &retval))
-#define FIRMWARE_VERSION(x,y) (new_params.version.firmwareVersion == (x) && \
- new_params.version.firmwareRevision == (y))
-
- retval = 0;
- while (count && !retval) {
- find_colon = 1;
- if (MATCH("brightness")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 100)
- new_params.colourParams.brightness = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOLOURPARAMS;
- if(new_params.flickerControl.allowableOverExposure < 0)
- new_params.flickerControl.allowableOverExposure =
- -find_over_exposure(new_params.colourParams.brightness);
- if(new_params.flickerControl.flickerMode != 0)
- command_flags |= COMMAND_SETFLICKERCTRL;
-
- } else if (MATCH("contrast")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 100) {
- /* contrast is in steps of 8, so round*/
- val = ((val + 3) / 8) * 8;
- /* 1-02 firmware limits contrast to 80*/
- if (FIRMWARE_VERSION(1,2) && val > 80)
- val = 80;
-
- new_params.colourParams.contrast = val;
- } else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOLOURPARAMS;
- } else if (MATCH("saturation")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 100)
- new_params.colourParams.saturation = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOLOURPARAMS;
- } else if (MATCH("sensor_fps")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- /* find values so that sensorFPS is minimized,
- * but >= val */
- if (val > 30)
- retval = -EINVAL;
- else if (val > 25) {
- new_params.sensorFps.divisor = 0;
- new_params.sensorFps.baserate = 1;
- } else if (val > 15) {
- new_params.sensorFps.divisor = 0;
- new_params.sensorFps.baserate = 0;
- } else if (val > 12) {
- new_params.sensorFps.divisor = 1;
- new_params.sensorFps.baserate = 1;
- } else if (val > 7) {
- new_params.sensorFps.divisor = 1;
- new_params.sensorFps.baserate = 0;
- } else if (val > 6) {
- new_params.sensorFps.divisor = 2;
- new_params.sensorFps.baserate = 1;
- } else if (val > 3) {
- new_params.sensorFps.divisor = 2;
- new_params.sensorFps.baserate = 0;
- } else {
- new_params.sensorFps.divisor = 3;
- /* Either base rate would work here */
- new_params.sensorFps.baserate = 1;
- }
- new_params.flickerControl.coarseJump =
- flicker_jumps[new_mains]
- [new_params.sensorFps.baserate]
- [new_params.sensorFps.divisor];
- if (new_params.flickerControl.flickerMode)
- command_flags |= COMMAND_SETFLICKERCTRL;
- }
- command_flags |= COMMAND_SETSENSORFPS;
- cam->exposure_status = EXPOSURE_NORMAL;
- } else if (MATCH("stream_start_line")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- int max_line = 288;
-
- if (new_params.format.videoSize == VIDEOSIZE_QCIF)
- max_line = 144;
- if (val <= max_line)
- new_params.streamStartLine = val/2;
- else
- retval = -EINVAL;
- }
- } else if (MATCH("sub_sample")) {
- if (!retval && MATCH("420"))
- new_params.format.subSample = SUBSAMPLE_420;
- else if (!retval && MATCH("422"))
- new_params.format.subSample = SUBSAMPLE_422;
- else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETFORMAT;
- } else if (MATCH("yuv_order")) {
- if (!retval && MATCH("YUYV"))
- new_params.format.yuvOrder = YUVORDER_YUYV;
- else if (!retval && MATCH("UYVY"))
- new_params.format.yuvOrder = YUVORDER_UYVY;
- else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETFORMAT;
- } else if (MATCH("ecp_timing")) {
- if (!retval && MATCH("normal"))
- new_params.ecpTiming = 0;
- else if (!retval && MATCH("slow"))
- new_params.ecpTiming = 1;
- else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETECPTIMING;
- } else if (MATCH("color_balance_mode")) {
- if (!retval && MATCH("manual"))
- new_params.colourBalance.balanceMode = 3;
- else if (!retval && MATCH("auto"))
- new_params.colourBalance.balanceMode = 2;
- else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETCOLOURBALANCE;
- } else if (MATCH("red_gain")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 212) {
- new_params.colourBalance.redGain = val;
- new_params.colourBalance.balanceMode = 1;
- } else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOLOURBALANCE;
- } else if (MATCH("green_gain")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 212) {
- new_params.colourBalance.greenGain = val;
- new_params.colourBalance.balanceMode = 1;
- } else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOLOURBALANCE;
- } else if (MATCH("blue_gain")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 212) {
- new_params.colourBalance.blueGain = val;
- new_params.colourBalance.balanceMode = 1;
- } else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOLOURBALANCE;
- } else if (MATCH("max_gain")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- /* 1-02 firmware limits gain to 2 */
- if (FIRMWARE_VERSION(1,2) && val > 2)
- val = 2;
- switch(val) {
- case 1:
- new_params.exposure.gainMode = 1;
- break;
- case 2:
- new_params.exposure.gainMode = 2;
- break;
- case 4:
- new_params.exposure.gainMode = 3;
- break;
- case 8:
- new_params.exposure.gainMode = 4;
- break;
- default:
- retval = -EINVAL;
- break;
- }
- }
- command_flags |= COMMAND_SETEXPOSURE;
- } else if (MATCH("exposure_mode")) {
- if (!retval && MATCH("auto"))
- new_params.exposure.expMode = 2;
- else if (!retval && MATCH("manual")) {
- if (new_params.exposure.expMode == 2)
- new_params.exposure.expMode = 3;
- if(new_params.flickerControl.flickerMode != 0)
- command_flags |= COMMAND_SETFLICKERCTRL;
- new_params.flickerControl.flickerMode = 0;
- } else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETEXPOSURE;
- } else if (MATCH("centre_weight")) {
- if (!retval && MATCH("on"))
- new_params.exposure.centreWeight = 1;
- else if (!retval && MATCH("off"))
- new_params.exposure.centreWeight = 2;
- else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETEXPOSURE;
- } else if (MATCH("gain")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- switch(val) {
- case 1:
- new_params.exposure.gain = 0;
- break;
- case 2:
- new_params.exposure.gain = 1;
- break;
- case 4:
- new_params.exposure.gain = 2;
- break;
- case 8:
- new_params.exposure.gain = 3;
- break;
- default:
- retval = -EINVAL;
- break;
- }
- new_params.exposure.expMode = 1;
- if(new_params.flickerControl.flickerMode != 0)
- command_flags |= COMMAND_SETFLICKERCTRL;
- new_params.flickerControl.flickerMode = 0;
- command_flags |= COMMAND_SETEXPOSURE;
- if (new_params.exposure.gain >
- new_params.exposure.gainMode-1)
- retval = -EINVAL;
- }
- } else if (MATCH("fine_exp")) {
- if (!retval)
- val = VALUE/2;
-
- if (!retval) {
- if (val < 256) {
- /* 1-02 firmware limits fineExp/2 to 127*/
- if (FIRMWARE_VERSION(1,2) && val > 127)
- val = 127;
- new_params.exposure.fineExp = val;
- new_params.exposure.expMode = 1;
- command_flags |= COMMAND_SETEXPOSURE;
- if(new_params.flickerControl.flickerMode != 0)
- command_flags |= COMMAND_SETFLICKERCTRL;
- new_params.flickerControl.flickerMode = 0;
- command_flags |= COMMAND_SETFLICKERCTRL;
- } else
- retval = -EINVAL;
- }
- } else if (MATCH("coarse_exp")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= MAX_EXP) {
- if (FIRMWARE_VERSION(1,2) &&
- val > MAX_EXP_102)
- val = MAX_EXP_102;
- new_params.exposure.coarseExpLo =
- val & 0xff;
- new_params.exposure.coarseExpHi =
- val >> 8;
- new_params.exposure.expMode = 1;
- command_flags |= COMMAND_SETEXPOSURE;
- if(new_params.flickerControl.flickerMode != 0)
- command_flags |= COMMAND_SETFLICKERCTRL;
- new_params.flickerControl.flickerMode = 0;
- command_flags |= COMMAND_SETFLICKERCTRL;
- } else
- retval = -EINVAL;
- }
- } else if (MATCH("red_comp")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val >= COMP_RED && val <= 255) {
- new_params.exposure.redComp = val;
- new_params.exposure.compMode = 1;
- command_flags |= COMMAND_SETEXPOSURE;
- } else
- retval = -EINVAL;
- }
- } else if (MATCH("green1_comp")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val >= COMP_GREEN1 && val <= 255) {
- new_params.exposure.green1Comp = val;
- new_params.exposure.compMode = 1;
- command_flags |= COMMAND_SETEXPOSURE;
- } else
- retval = -EINVAL;
- }
- } else if (MATCH("green2_comp")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val >= COMP_GREEN2 && val <= 255) {
- new_params.exposure.green2Comp = val;
- new_params.exposure.compMode = 1;
- command_flags |= COMMAND_SETEXPOSURE;
- } else
- retval = -EINVAL;
- }
- } else if (MATCH("blue_comp")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val >= COMP_BLUE && val <= 255) {
- new_params.exposure.blueComp = val;
- new_params.exposure.compMode = 1;
- command_flags |= COMMAND_SETEXPOSURE;
- } else
- retval = -EINVAL;
- }
- } else if (MATCH("apcor_gain1")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- command_flags |= COMMAND_SETAPCOR;
- if (val <= 0xff)
- new_params.apcor.gain1 = val;
- else
- retval = -EINVAL;
- }
- } else if (MATCH("apcor_gain2")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- command_flags |= COMMAND_SETAPCOR;
- if (val <= 0xff)
- new_params.apcor.gain2 = val;
- else
- retval = -EINVAL;
- }
- } else if (MATCH("apcor_gain4")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- command_flags |= COMMAND_SETAPCOR;
- if (val <= 0xff)
- new_params.apcor.gain4 = val;
- else
- retval = -EINVAL;
- }
- } else if (MATCH("apcor_gain8")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- command_flags |= COMMAND_SETAPCOR;
- if (val <= 0xff)
- new_params.apcor.gain8 = val;
- else
- retval = -EINVAL;
- }
- } else if (MATCH("vl_offset_gain1")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.vlOffset.gain1 = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETVLOFFSET;
- } else if (MATCH("vl_offset_gain2")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.vlOffset.gain2 = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETVLOFFSET;
- } else if (MATCH("vl_offset_gain4")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.vlOffset.gain4 = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETVLOFFSET;
- } else if (MATCH("vl_offset_gain8")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.vlOffset.gain8 = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETVLOFFSET;
- } else if (MATCH("flicker_control")) {
- if (!retval && MATCH("on")) {
- set_flicker(&new_params, &command_flags, 1);
- } else if (!retval && MATCH("off")) {
- set_flicker(&new_params, &command_flags, 0);
- } else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETFLICKERCTRL;
- } else if (MATCH("mains_frequency")) {
- if (!retval && MATCH("50")) {
- new_mains = 0;
- new_params.flickerControl.coarseJump =
- flicker_jumps[new_mains]
- [new_params.sensorFps.baserate]
- [new_params.sensorFps.divisor];
- if (new_params.flickerControl.flickerMode)
- command_flags |= COMMAND_SETFLICKERCTRL;
- } else if (!retval && MATCH("60")) {
- new_mains = 1;
- new_params.flickerControl.coarseJump =
- flicker_jumps[new_mains]
- [new_params.sensorFps.baserate]
- [new_params.sensorFps.divisor];
- if (new_params.flickerControl.flickerMode)
- command_flags |= COMMAND_SETFLICKERCTRL;
- } else
- retval = -EINVAL;
- } else if (MATCH("allowable_overexposure")) {
- if (!retval && MATCH("auto")) {
- new_params.flickerControl.allowableOverExposure =
- -find_over_exposure(new_params.colourParams.brightness);
- if(new_params.flickerControl.flickerMode != 0)
- command_flags |= COMMAND_SETFLICKERCTRL;
- } else {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff) {
- new_params.flickerControl.
- allowableOverExposure = val;
- if(new_params.flickerControl.flickerMode != 0)
- command_flags |= COMMAND_SETFLICKERCTRL;
- } else
- retval = -EINVAL;
- }
- }
- } else if (MATCH("compression_mode")) {
- if (!retval && MATCH("none"))
- new_params.compression.mode =
- CPIA_COMPRESSION_NONE;
- else if (!retval && MATCH("auto"))
- new_params.compression.mode =
- CPIA_COMPRESSION_AUTO;
- else if (!retval && MATCH("manual"))
- new_params.compression.mode =
- CPIA_COMPRESSION_MANUAL;
- else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETCOMPRESSION;
- } else if (MATCH("decimation_enable")) {
- if (!retval && MATCH("off"))
- new_params.compression.decimation = 0;
- else if (!retval && MATCH("on"))
- new_params.compression.decimation = 1;
- else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETCOMPRESSION;
- } else if (MATCH("compression_target")) {
- if (!retval && MATCH("quality"))
- new_params.compressionTarget.frTargeting =
- CPIA_COMPRESSION_TARGET_QUALITY;
- else if (!retval && MATCH("framerate"))
- new_params.compressionTarget.frTargeting =
- CPIA_COMPRESSION_TARGET_FRAMERATE;
- else
- retval = -EINVAL;
-
- command_flags |= COMMAND_SETCOMPRESSIONTARGET;
- } else if (MATCH("target_framerate")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if(val > 0 && val <= 30)
- new_params.compressionTarget.targetFR = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONTARGET;
- } else if (MATCH("target_quality")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if(val > 0 && val <= 64)
- new_params.compressionTarget.targetQ = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONTARGET;
- } else if (MATCH("y_threshold")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val < 32)
- new_params.yuvThreshold.yThreshold = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETYUVTHRESH;
- } else if (MATCH("uv_threshold")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val < 32)
- new_params.yuvThreshold.uvThreshold = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETYUVTHRESH;
- } else if (MATCH("hysteresis")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.compressionParams.hysteresis = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONPARAMS;
- } else if (MATCH("threshold_max")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.compressionParams.threshMax = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONPARAMS;
- } else if (MATCH("small_step")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.compressionParams.smallStep = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONPARAMS;
- } else if (MATCH("large_step")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.compressionParams.largeStep = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONPARAMS;
- } else if (MATCH("decimation_hysteresis")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.compressionParams.decimationHysteresis = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONPARAMS;
- } else if (MATCH("fr_diff_step_thresh")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.compressionParams.frDiffStepThresh = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONPARAMS;
- } else if (MATCH("q_diff_step_thresh")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.compressionParams.qDiffStepThresh = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONPARAMS;
- } else if (MATCH("decimation_thresh_mod")) {
- if (!retval)
- val = VALUE;
-
- if (!retval) {
- if (val <= 0xff)
- new_params.compressionParams.decimationThreshMod = val;
- else
- retval = -EINVAL;
- }
- command_flags |= COMMAND_SETCOMPRESSIONPARAMS;
- } else if (MATCH("toplight")) {
- if (!retval && MATCH("on"))
- new_params.qx3.toplight = 1;
- else if (!retval && MATCH("off"))
- new_params.qx3.toplight = 0;
- else
- retval = -EINVAL;
- command_flags |= COMMAND_SETLIGHTS;
- } else if (MATCH("bottomlight")) {
- if (!retval && MATCH("on"))
- new_params.qx3.bottomlight = 1;
- else if (!retval && MATCH("off"))
- new_params.qx3.bottomlight = 0;
- else
- retval = -EINVAL;
- command_flags |= COMMAND_SETLIGHTS;
- } else {
- DBG("No match found\n");
- retval = -EINVAL;
- }
-
- if (!retval) {
- while (count && isspace(*buffer) && *buffer != '\n') {
- --count;
- ++buffer;
- }
- if (count) {
- if (*buffer == '\0' && count != 1)
- retval = -EINVAL;
- else if (*buffer != '\n' && *buffer != ';' &&
- *buffer != '\0')
- retval = -EINVAL;
- else {
- --count;
- ++buffer;
- }
- }
- }
- }
-#undef MATCH
-#undef VALUE
-#undef FIRMWARE_VERSION
- if (!retval) {
- if (command_flags & COMMAND_SETCOLOURPARAMS) {
- /* Adjust cam->vp to reflect these changes */
- cam->vp.brightness =
- new_params.colourParams.brightness*65535/100;
- cam->vp.contrast =
- new_params.colourParams.contrast*65535/100;
- cam->vp.colour =
- new_params.colourParams.saturation*65535/100;
- }
- if((command_flags & COMMAND_SETEXPOSURE) &&
- new_params.exposure.expMode == 2)
- cam->exposure_status = EXPOSURE_NORMAL;
-
- memcpy(&cam->params, &new_params, sizeof(struct cam_params));
- cam->mainsFreq = new_mains;
- cam->cmd_queue |= command_flags;
- retval = size;
- } else
- DBG("error: %d\n", retval);
-
- mutex_unlock(&cam->param_lock);
-
-out:
- free_page((unsigned long)page);
- return retval;
-}
-
-static const struct file_operations cpia_proc_fops = {
- .owner = THIS_MODULE,
- .open = cpia_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .write = cpia_proc_write,
-};
-
-static void create_proc_cpia_cam(struct cam_data *cam)
-{
- struct proc_dir_entry *ent;
-
- if (!cpia_proc_root || !cam)
- return;
-
- ent = proc_create_data(video_device_node_name(&cam->vdev),
- S_IRUGO|S_IWUSR, cpia_proc_root,
- &cpia_proc_fops, cam);
- if (!ent)
- return;
-
- /*
- size of the proc entry is 3736 bytes for the standard webcam;
- the extra features of the QX3 microscope add 189 bytes.
- (we have not yet probed the camera to see which type it is).
- */
- ent->size = 3736 + 189;
- cam->proc_entry = ent;
-}
-
-static void destroy_proc_cpia_cam(struct cam_data *cam)
-{
- if (!cam || !cam->proc_entry)
- return;
-
- remove_proc_entry(video_device_node_name(&cam->vdev), cpia_proc_root);
- cam->proc_entry = NULL;
-}
-
-static void proc_cpia_create(void)
-{
- cpia_proc_root = proc_mkdir("cpia", NULL);
-
- if (!cpia_proc_root)
- LOG("Unable to initialise /proc/cpia\n");
-}
-
-static void __exit proc_cpia_destroy(void)
-{
- remove_proc_entry("cpia", NULL);
-}
-#endif /* CONFIG_PROC_FS */
-
-/* ----------------------- debug functions ---------------------- */
-
-#define printstatus(cam) \
- DBG("%02x %02x %02x %02x %02x %02x %02x %02x\n",\
- cam->params.status.systemState, cam->params.status.grabState, \
- cam->params.status.streamState, cam->params.status.fatalError, \
- cam->params.status.cmdError, cam->params.status.debugFlags, \
- cam->params.status.vpStatus, cam->params.status.errorCode);
-
-/* ----------------------- v4l helpers -------------------------- */
-
-/* supported frame palettes and depths */
-static inline int valid_mode(u16 palette, u16 depth)
-{
- if ((palette == VIDEO_PALETTE_YUV422 && depth == 16) ||
- (palette == VIDEO_PALETTE_YUYV && depth == 16))
- return 1;
-
- if (colorspace_conv)
- return (palette == VIDEO_PALETTE_GREY && depth == 8) ||
- (palette == VIDEO_PALETTE_RGB555 && depth == 16) ||
- (palette == VIDEO_PALETTE_RGB565 && depth == 16) ||
- (palette == VIDEO_PALETTE_RGB24 && depth == 24) ||
- (palette == VIDEO_PALETTE_RGB32 && depth == 32) ||
- (palette == VIDEO_PALETTE_UYVY && depth == 16);
-
- return 0;
-}
-
-static int match_videosize( int width, int height )
-{
- /* return the best match, where 'best' is as always
- * the largest that is not bigger than what is requested. */
- if (width>=352 && height>=288)
- return VIDEOSIZE_352_288; /* CIF */
-
- if (width>=320 && height>=240)
- return VIDEOSIZE_320_240; /* SIF */
-
- if (width>=288 && height>=216)
- return VIDEOSIZE_288_216;
-
- if (width>=256 && height>=192)
- return VIDEOSIZE_256_192;
-
- if (width>=224 && height>=168)
- return VIDEOSIZE_224_168;
-
- if (width>=192 && height>=144)
- return VIDEOSIZE_192_144;
-
- if (width>=176 && height>=144)
- return VIDEOSIZE_176_144; /* QCIF */
-
- if (width>=160 && height>=120)
- return VIDEOSIZE_160_120; /* QSIF */
-
- if (width>=128 && height>=96)
- return VIDEOSIZE_128_96;
-
- if (width>=88 && height>=72)
- return VIDEOSIZE_88_72;
-
- if (width>=64 && height>=48)
- return VIDEOSIZE_64_48;
-
- if (width>=48 && height>=48)
- return VIDEOSIZE_48_48;
-
- return -1;
-}
-
-/* these are the capture sizes we support */
-static void set_vw_size(struct cam_data *cam)
-{
- /* the col/row/start/end values are the result of simple math */
- /* study the SetROI-command in cpia developers guide p 2-22 */
- /* streamStartLine is set to the recommended value in the cpia */
- /* developers guide p 3-37 */
- switch(cam->video_size) {
- case VIDEOSIZE_CIF:
- cam->vw.width = 352;
- cam->vw.height = 288;
- cam->params.format.videoSize=VIDEOSIZE_CIF;
- cam->params.roi.colStart=0;
- cam->params.roi.rowStart=0;
- cam->params.streamStartLine = 120;
- break;
- case VIDEOSIZE_SIF:
- cam->vw.width = 320;
- cam->vw.height = 240;
- cam->params.format.videoSize=VIDEOSIZE_CIF;
- cam->params.roi.colStart=2;
- cam->params.roi.rowStart=6;
- cam->params.streamStartLine = 120;
- break;
- case VIDEOSIZE_288_216:
- cam->vw.width = 288;
- cam->vw.height = 216;
- cam->params.format.videoSize=VIDEOSIZE_CIF;
- cam->params.roi.colStart=4;
- cam->params.roi.rowStart=9;
- cam->params.streamStartLine = 120;
- break;
- case VIDEOSIZE_256_192:
- cam->vw.width = 256;
- cam->vw.height = 192;
- cam->params.format.videoSize=VIDEOSIZE_CIF;
- cam->params.roi.colStart=6;
- cam->params.roi.rowStart=12;
- cam->params.streamStartLine = 120;
- break;
- case VIDEOSIZE_224_168:
- cam->vw.width = 224;
- cam->vw.height = 168;
- cam->params.format.videoSize=VIDEOSIZE_CIF;
- cam->params.roi.colStart=8;
- cam->params.roi.rowStart=15;
- cam->params.streamStartLine = 120;
- break;
- case VIDEOSIZE_192_144:
- cam->vw.width = 192;
- cam->vw.height = 144;
- cam->params.format.videoSize=VIDEOSIZE_CIF;
- cam->params.roi.colStart=10;
- cam->params.roi.rowStart=18;
- cam->params.streamStartLine = 120;
- break;
- case VIDEOSIZE_QCIF:
- cam->vw.width = 176;
- cam->vw.height = 144;
- cam->params.format.videoSize=VIDEOSIZE_QCIF;
- cam->params.roi.colStart=0;
- cam->params.roi.rowStart=0;
- cam->params.streamStartLine = 60;
- break;
- case VIDEOSIZE_QSIF:
- cam->vw.width = 160;
- cam->vw.height = 120;
- cam->params.format.videoSize=VIDEOSIZE_QCIF;
- cam->params.roi.colStart=1;
- cam->params.roi.rowStart=3;
- cam->params.streamStartLine = 60;
- break;
- case VIDEOSIZE_128_96:
- cam->vw.width = 128;
- cam->vw.height = 96;
- cam->params.format.videoSize=VIDEOSIZE_QCIF;
- cam->params.roi.colStart=3;
- cam->params.roi.rowStart=6;
- cam->params.streamStartLine = 60;
- break;
- case VIDEOSIZE_88_72:
- cam->vw.width = 88;
- cam->vw.height = 72;
- cam->params.format.videoSize=VIDEOSIZE_QCIF;
- cam->params.roi.colStart=5;
- cam->params.roi.rowStart=9;
- cam->params.streamStartLine = 60;
- break;
- case VIDEOSIZE_64_48:
- cam->vw.width = 64;
- cam->vw.height = 48;
- cam->params.format.videoSize=VIDEOSIZE_QCIF;
- cam->params.roi.colStart=7;
- cam->params.roi.rowStart=12;
- cam->params.streamStartLine = 60;
- break;
- case VIDEOSIZE_48_48:
- cam->vw.width = 48;
- cam->vw.height = 48;
- cam->params.format.videoSize=VIDEOSIZE_QCIF;
- cam->params.roi.colStart=8;
- cam->params.roi.rowStart=6;
- cam->params.streamStartLine = 60;
- break;
- default:
- LOG("bad videosize value: %d\n", cam->video_size);
- return;
- }
-
- if(cam->vc.width == 0)
- cam->vc.width = cam->vw.width;
- if(cam->vc.height == 0)
- cam->vc.height = cam->vw.height;
-
- cam->params.roi.colStart += cam->vc.x >> 3;
- cam->params.roi.colEnd = cam->params.roi.colStart +
- (cam->vc.width >> 3);
- cam->params.roi.rowStart += cam->vc.y >> 2;
- cam->params.roi.rowEnd = cam->params.roi.rowStart +
- (cam->vc.height >> 2);
-
- return;
-}
-
-static int allocate_frame_buf(struct cam_data *cam)
-{
- int i;
-
- cam->frame_buf = rvmalloc(FRAME_NUM * CPIA_MAX_FRAME_SIZE);
- if (!cam->frame_buf)
- return -ENOBUFS;
-
- for (i = 0; i < FRAME_NUM; i++)
- cam->frame[i].data = cam->frame_buf + i * CPIA_MAX_FRAME_SIZE;
-
- return 0;
-}
-
-static int free_frame_buf(struct cam_data *cam)
-{
- int i;
-
- rvfree(cam->frame_buf, FRAME_NUM*CPIA_MAX_FRAME_SIZE);
- cam->frame_buf = NULL;
- for (i=0; i < FRAME_NUM; i++)
- cam->frame[i].data = NULL;
-
- return 0;
-}
-
-
-static inline void free_frames(struct cpia_frame frame[FRAME_NUM])
-{
- int i;
-
- for (i=0; i < FRAME_NUM; i++)
- frame[i].state = FRAME_UNUSED;
- return;
-}
-
-/**********************************************************************
- *
- * General functions
- *
- **********************************************************************/
-/* send an arbitrary command to the camera */
-static int do_command(struct cam_data *cam, u16 command, u8 a, u8 b, u8 c, u8 d)
-{
- int retval, datasize;
- u8 cmd[8], data[8];
-
- switch(command) {
- case CPIA_COMMAND_GetCPIAVersion:
- case CPIA_COMMAND_GetPnPID:
- case CPIA_COMMAND_GetCameraStatus:
- case CPIA_COMMAND_GetVPVersion:
- datasize=8;
- break;
- case CPIA_COMMAND_GetColourParams:
- case CPIA_COMMAND_GetColourBalance:
- case CPIA_COMMAND_GetExposure:
- mutex_lock(&cam->param_lock);
- 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;
-
- retval = cam->ops->transferCmd(cam->lowlevel_data, cmd, data);
- if (retval) {
- DBG("%x - failed, retval=%d\n", command, retval);
- if (command == CPIA_COMMAND_GetColourParams ||
- command == CPIA_COMMAND_GetColourBalance ||
- command == CPIA_COMMAND_GetExposure)
- mutex_unlock(&cam->param_lock);
- } else {
- switch(command) {
- case CPIA_COMMAND_GetCPIAVersion:
- cam->params.version.firmwareVersion = data[0];
- cam->params.version.firmwareRevision = data[1];
- cam->params.version.vcVersion = data[2];
- cam->params.version.vcRevision = data[3];
- break;
- case CPIA_COMMAND_GetPnPID:
- cam->params.pnpID.vendor = data[0]+(((u16)data[1])<<8);
- cam->params.pnpID.product = data[2]+(((u16)data[3])<<8);
- cam->params.pnpID.deviceRevision =
- data[4]+(((u16)data[5])<<8);
- break;
- case CPIA_COMMAND_GetCameraStatus:
- cam->params.status.systemState = data[0];
- cam->params.status.grabState = data[1];
- cam->params.status.streamState = data[2];
- cam->params.status.fatalError = data[3];
- cam->params.status.cmdError = data[4];
- cam->params.status.debugFlags = data[5];
- cam->params.status.vpStatus = data[6];
- cam->params.status.errorCode = data[7];
- break;
- case CPIA_COMMAND_GetVPVersion:
- cam->params.vpVersion.vpVersion = data[0];
- cam->params.vpVersion.vpRevision = data[1];
- cam->params.vpVersion.cameraHeadID =
- data[2]+(((u16)data[3])<<8);
- break;
- case CPIA_COMMAND_GetColourParams:
- cam->params.colourParams.brightness = data[0];
- cam->params.colourParams.contrast = data[1];
- cam->params.colourParams.saturation = data[2];
- mutex_unlock(&cam->param_lock);
- break;
- case CPIA_COMMAND_GetColourBalance:
- cam->params.colourBalance.redGain = data[0];
- cam->params.colourBalance.greenGain = data[1];
- cam->params.colourBalance.blueGain = data[2];
- mutex_unlock(&cam->param_lock);
- break;
- case CPIA_COMMAND_GetExposure:
- cam->params.exposure.gain = data[0];
- cam->params.exposure.fineExp = data[1];
- cam->params.exposure.coarseExpLo = data[2];
- cam->params.exposure.coarseExpHi = data[3];
- cam->params.exposure.redComp = data[4];
- cam->params.exposure.green1Comp = data[5];
- cam->params.exposure.green2Comp = data[6];
- cam->params.exposure.blueComp = data[7];
- mutex_unlock(&cam->param_lock);
- break;
-
- case CPIA_COMMAND_ReadMCPorts:
- if (!cam->params.qx3.qx3_detected)
- break;
- /* test button press */
- cam->params.qx3.button = ((data[1] & 0x02) == 0);
- if (cam->params.qx3.button) {
- /* button pressed - unlock the latch */
- do_command(cam,CPIA_COMMAND_WriteMCPort,3,0xDF,0xDF,0);
- do_command(cam,CPIA_COMMAND_WriteMCPort,3,0xFF,0xFF,0);
- }
-
- /* test whether microscope is cradled */
- cam->params.qx3.cradled = ((data[2] & 0x40) == 0);
- break;
-
- default:
- break;
- }
- }
- return retval;
-}
-
-/* send a command to the camera with an additional data transaction */
-static int do_command_extended(struct cam_data *cam, 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)
-{
- int retval;
- u8 cmd[8], data[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;
- data[0] = e;
- data[1] = f;
- data[2] = g;
- data[3] = h;
- data[4] = i;
- data[5] = j;
- data[6] = k;
- data[7] = l;
-
- retval = cam->ops->transferCmd(cam->lowlevel_data, cmd, data);
- if (retval)
- DBG("%x - failed\n", command);
-
- return retval;
-}
-
-/**********************************************************************
- *
- * Colorspace conversion
- *
- **********************************************************************/
-#define LIMIT(x) ((((x)>0xffffff)?0xff0000:(((x)<=0xffff)?0:(x)&0xff0000))>>16)
-
-static int convert420(unsigned char *yuv, unsigned char *rgb, int out_fmt,
- int linesize, int mmap_kludge)
-{
- int y, u, v, r, g, b, y1;
-
- /* Odd lines use the same u and v as the previous line.
- * Because of compression, it is necessary to get this
- * information from the decoded image. */
- switch(out_fmt) {
- case VIDEO_PALETTE_RGB555:
- y = (*yuv++ - 16) * 76310;
- y1 = (*yuv - 16) * 76310;
- r = ((*(rgb+1-linesize)) & 0x7c) << 1;
- g = ((*(rgb-linesize)) & 0xe0) >> 4 |
- ((*(rgb+1-linesize)) & 0x03) << 6;
- b = ((*(rgb-linesize)) & 0x1f) << 3;
- u = (-53294 * r - 104635 * g + 157929 * b) / 5756495;
- v = (157968 * r - 132278 * g - 25690 * b) / 5366159;
- r = 104635 * v;
- g = -25690 * u - 53294 * v;
- b = 132278 * u;
- *rgb++ = ((LIMIT(g+y) & 0xf8) << 2) | (LIMIT(b+y) >> 3);
- *rgb++ = ((LIMIT(r+y) & 0xf8) >> 1) | (LIMIT(g+y) >> 6);
- *rgb++ = ((LIMIT(g+y1) & 0xf8) << 2) | (LIMIT(b+y1) >> 3);
- *rgb = ((LIMIT(r+y1) & 0xf8) >> 1) | (LIMIT(g+y1) >> 6);
- return 4;
- case VIDEO_PALETTE_RGB565:
- y = (*yuv++ - 16) * 76310;
- y1 = (*yuv - 16) * 76310;
- r = (*(rgb+1-linesize)) & 0xf8;
- g = ((*(rgb-linesize)) & 0xe0) >> 3 |
- ((*(rgb+1-linesize)) & 0x07) << 5;
- b = ((*(rgb-linesize)) & 0x1f) << 3;
- u = (-53294 * r - 104635 * g + 157929 * b) / 5756495;
- v = (157968 * r - 132278 * g - 25690 * b) / 5366159;
- r = 104635 * v;
- g = -25690 * u - 53294 * v;
- b = 132278 * u;
- *rgb++ = ((LIMIT(g+y) & 0xfc) << 3) | (LIMIT(b+y) >> 3);
- *rgb++ = (LIMIT(r+y) & 0xf8) | (LIMIT(g+y) >> 5);
- *rgb++ = ((LIMIT(g+y1) & 0xfc) << 3) | (LIMIT(b+y1) >> 3);
- *rgb = (LIMIT(r+y1) & 0xf8) | (LIMIT(g+y1) >> 5);
- return 4;
- break;
- case VIDEO_PALETTE_RGB24:
- case VIDEO_PALETTE_RGB32:
- y = (*yuv++ - 16) * 76310;
- y1 = (*yuv - 16) * 76310;
- if (mmap_kludge) {
- r = *(rgb+2-linesize);
- g = *(rgb+1-linesize);
- b = *(rgb-linesize);
- } else {
- r = *(rgb-linesize);
- g = *(rgb+1-linesize);
- b = *(rgb+2-linesize);
- }
- u = (-53294 * r - 104635 * g + 157929 * b) / 5756495;
- v = (157968 * r - 132278 * g - 25690 * b) / 5366159;
- r = 104635 * v;
- g = -25690 * u + -53294 * v;
- b = 132278 * u;
- if (mmap_kludge) {
- *rgb++ = LIMIT(b+y);
- *rgb++ = LIMIT(g+y);
- *rgb++ = LIMIT(r+y);
- if(out_fmt == VIDEO_PALETTE_RGB32)
- rgb++;
- *rgb++ = LIMIT(b+y1);
- *rgb++ = LIMIT(g+y1);
- *rgb = LIMIT(r+y1);
- } else {
- *rgb++ = LIMIT(r+y);
- *rgb++ = LIMIT(g+y);
- *rgb++ = LIMIT(b+y);
- if(out_fmt == VIDEO_PALETTE_RGB32)
- rgb++;
- *rgb++ = LIMIT(r+y1);
- *rgb++ = LIMIT(g+y1);
- *rgb = LIMIT(b+y1);
- }
- if(out_fmt == VIDEO_PALETTE_RGB32)
- return 8;
- return 6;
- case VIDEO_PALETTE_YUV422:
- case VIDEO_PALETTE_YUYV:
- y = *yuv++;
- u = *(rgb+1-linesize);
- y1 = *yuv;
- v = *(rgb+3-linesize);
- *rgb++ = y;
- *rgb++ = u;
- *rgb++ = y1;
- *rgb = v;
- return 4;
- case VIDEO_PALETTE_UYVY:
- u = *(rgb-linesize);
- y = *yuv++;
- v = *(rgb+2-linesize);
- y1 = *yuv;
- *rgb++ = u;
- *rgb++ = y;
- *rgb++ = v;
- *rgb = y1;
- return 4;
- case VIDEO_PALETTE_GREY:
- *rgb++ = *yuv++;
- *rgb = *yuv;
- return 2;
- default:
- DBG("Empty: %d\n", out_fmt);
- return 0;
- }
-}
-
-
-static int yuvconvert(unsigned char *yuv, unsigned char *rgb, int out_fmt,
- int in_uyvy, int mmap_kludge)
-{
- int y, u, v, r, g, b, y1;
-
- switch(out_fmt) {
- case VIDEO_PALETTE_RGB555:
- case VIDEO_PALETTE_RGB565:
- case VIDEO_PALETTE_RGB24:
- case VIDEO_PALETTE_RGB32:
- if (in_uyvy) {
- u = *yuv++ - 128;
- y = (*yuv++ - 16) * 76310;
- v = *yuv++ - 128;
- y1 = (*yuv - 16) * 76310;
- } else {
- y = (*yuv++ - 16) * 76310;
- u = *yuv++ - 128;
- y1 = (*yuv++ - 16) * 76310;
- v = *yuv - 128;
- }
- r = 104635 * v;
- g = -25690 * u + -53294 * v;
- b = 132278 * u;
- break;
- default:
- y = *yuv++;
- u = *yuv++;
- y1 = *yuv++;
- v = *yuv;
- /* Just to avoid compiler warnings */
- r = 0;
- g = 0;
- b = 0;
- break;
- }
- switch(out_fmt) {
- case VIDEO_PALETTE_RGB555:
- *rgb++ = ((LIMIT(g+y) & 0xf8) << 2) | (LIMIT(b+y) >> 3);
- *rgb++ = ((LIMIT(r+y) & 0xf8) >> 1) | (LIMIT(g+y) >> 6);
- *rgb++ = ((LIMIT(g+y1) & 0xf8) << 2) | (LIMIT(b+y1) >> 3);
- *rgb = ((LIMIT(r+y1) & 0xf8) >> 1) | (LIMIT(g+y1) >> 6);
- return 4;
- case VIDEO_PALETTE_RGB565:
- *rgb++ = ((LIMIT(g+y) & 0xfc) << 3) | (LIMIT(b+y) >> 3);
- *rgb++ = (LIMIT(r+y) & 0xf8) | (LIMIT(g+y) >> 5);
- *rgb++ = ((LIMIT(g+y1) & 0xfc) << 3) | (LIMIT(b+y1) >> 3);
- *rgb = (LIMIT(r+y1) & 0xf8) | (LIMIT(g+y1) >> 5);
- return 4;
- case VIDEO_PALETTE_RGB24:
- if (mmap_kludge) {
- *rgb++ = LIMIT(b+y);
- *rgb++ = LIMIT(g+y);
- *rgb++ = LIMIT(r+y);
- *rgb++ = LIMIT(b+y1);
- *rgb++ = LIMIT(g+y1);
- *rgb = LIMIT(r+y1);
- } else {
- *rgb++ = LIMIT(r+y);
- *rgb++ = LIMIT(g+y);
- *rgb++ = LIMIT(b+y);
- *rgb++ = LIMIT(r+y1);
- *rgb++ = LIMIT(g+y1);
- *rgb = LIMIT(b+y1);
- }
- return 6;
- case VIDEO_PALETTE_RGB32:
- if (mmap_kludge) {
- *rgb++ = LIMIT(b+y);
- *rgb++ = LIMIT(g+y);
- *rgb++ = LIMIT(r+y);
- rgb++;
- *rgb++ = LIMIT(b+y1);
- *rgb++ = LIMIT(g+y1);
- *rgb = LIMIT(r+y1);
- } else {
- *rgb++ = LIMIT(r+y);
- *rgb++ = LIMIT(g+y);
- *rgb++ = LIMIT(b+y);
- rgb++;
- *rgb++ = LIMIT(r+y1);
- *rgb++ = LIMIT(g+y1);
- *rgb = LIMIT(b+y1);
- }
- return 8;
- case VIDEO_PALETTE_GREY:
- *rgb++ = y;
- *rgb = y1;
- return 2;
- case VIDEO_PALETTE_YUV422:
- case VIDEO_PALETTE_YUYV:
- *rgb++ = y;
- *rgb++ = u;
- *rgb++ = y1;
- *rgb = v;
- return 4;
- case VIDEO_PALETTE_UYVY:
- *rgb++ = u;
- *rgb++ = y;
- *rgb++ = v;
- *rgb = y1;
- return 4;
- default:
- DBG("Empty: %d\n", out_fmt);
- return 0;
- }
-}
-
-static int skipcount(int count, int fmt)
-{
- switch(fmt) {
- case VIDEO_PALETTE_GREY:
- return count;
- case VIDEO_PALETTE_RGB555:
- case VIDEO_PALETTE_RGB565:
- case VIDEO_PALETTE_YUV422:
- case VIDEO_PALETTE_YUYV:
- case VIDEO_PALETTE_UYVY:
- return 2*count;
- case VIDEO_PALETTE_RGB24:
- return 3*count;
- case VIDEO_PALETTE_RGB32:
- return 4*count;
- default:
- return 0;
- }
-}
-
-static int parse_picture(struct cam_data *cam, int size)
-{
- u8 *obuf, *ibuf, *end_obuf;
- int ll, in_uyvy, compressed, decimation, even_line, origsize, out_fmt;
- int rows, cols, linesize, subsample_422;
-
- /* make sure params don't change while we are decoding */
- mutex_lock(&cam->param_lock);
-
- obuf = cam->decompressed_frame.data;
- end_obuf = obuf+CPIA_MAX_FRAME_SIZE;
- ibuf = cam->raw_image;
- origsize = size;
- out_fmt = cam->vp.palette;
-
- if ((ibuf[0] != MAGIC_0) || (ibuf[1] != MAGIC_1)) {
- LOG("header not found\n");
- mutex_unlock(&cam->param_lock);
- return -1;
- }
-
- if ((ibuf[16] != VIDEOSIZE_QCIF) && (ibuf[16] != VIDEOSIZE_CIF)) {
- LOG("wrong video size\n");
- mutex_unlock(&cam->param_lock);
- return -1;
- }
-
- if (ibuf[17] != SUBSAMPLE_420 && ibuf[17] != SUBSAMPLE_422) {
- LOG("illegal subtype %d\n",ibuf[17]);
- mutex_unlock(&cam->param_lock);
- return -1;
- }
- subsample_422 = ibuf[17] == SUBSAMPLE_422;
-
- if (ibuf[18] != YUVORDER_YUYV && ibuf[18] != YUVORDER_UYVY) {
- LOG("illegal yuvorder %d\n",ibuf[18]);
- mutex_unlock(&cam->param_lock);
- return -1;
- }
- in_uyvy = ibuf[18] == YUVORDER_UYVY;
-
- if ((ibuf[24] != cam->params.roi.colStart) ||
- (ibuf[25] != cam->params.roi.colEnd) ||
- (ibuf[26] != cam->params.roi.rowStart) ||
- (ibuf[27] != cam->params.roi.rowEnd)) {
- LOG("ROI mismatch\n");
- mutex_unlock(&cam->param_lock);
- return -1;
- }
- cols = 8*(ibuf[25] - ibuf[24]);
- rows = 4*(ibuf[27] - ibuf[26]);
-
-
- if ((ibuf[28] != NOT_COMPRESSED) && (ibuf[28] != COMPRESSED)) {
- LOG("illegal compression %d\n",ibuf[28]);
- mutex_unlock(&cam->param_lock);
- return -1;
- }
- compressed = (ibuf[28] == COMPRESSED);
-
- if (ibuf[29] != NO_DECIMATION && ibuf[29] != DECIMATION_ENAB) {
- LOG("illegal decimation %d\n",ibuf[29]);
- mutex_unlock(&cam->param_lock);
- return -1;
- }
- decimation = (ibuf[29] == DECIMATION_ENAB);
-
- cam->params.yuvThreshold.yThreshold = ibuf[30];
- cam->params.yuvThreshold.uvThreshold = ibuf[31];
- cam->params.status.systemState = ibuf[32];
- cam->params.status.grabState = ibuf[33];
- cam->params.status.streamState = ibuf[34];
- cam->params.status.fatalError = ibuf[35];
- cam->params.status.cmdError = ibuf[36];
- cam->params.status.debugFlags = ibuf[37];
- cam->params.status.vpStatus = ibuf[38];
- cam->params.status.errorCode = ibuf[39];
- cam->fps = ibuf[41];
- mutex_unlock(&cam->param_lock);
-
- linesize = skipcount(cols, out_fmt);
- ibuf += FRAME_HEADER_SIZE;
- size -= FRAME_HEADER_SIZE;
- ll = ibuf[0] | (ibuf[1] << 8);
- ibuf += 2;
- even_line = 1;
-
- while (size > 0) {
- size -= (ll+2);
- if (size < 0) {
- LOG("Insufficient data in buffer\n");
- return -1;
- }
-
- while (ll > 1) {
- if (!compressed || (compressed && !(*ibuf & 1))) {
- if(subsample_422 || even_line) {
- obuf += yuvconvert(ibuf, obuf, out_fmt,
- in_uyvy, cam->mmap_kludge);
- ibuf += 4;
- ll -= 4;
- } else {
- /* SUBSAMPLE_420 on an odd line */
- obuf += convert420(ibuf, obuf,
- out_fmt, linesize,
- cam->mmap_kludge);
- ibuf += 2;
- ll -= 2;
- }
- } else {
- /*skip compressed interval from previous frame*/
- obuf += skipcount(*ibuf >> 1, out_fmt);
- if (obuf > end_obuf) {
- LOG("Insufficient buffer size\n");
- return -1;
- }
- ++ibuf;
- ll--;
- }
- }
- if (ll == 1) {
- if (*ibuf != EOL) {
- DBG("EOL not found giving up after %d/%d"
- " bytes\n", origsize-size, origsize);
- return -1;
- }
-
- ++ibuf; /* skip over EOL */
-
- if ((size > 3) && (ibuf[0] == EOI) && (ibuf[1] == EOI) &&
- (ibuf[2] == EOI) && (ibuf[3] == EOI)) {
- size -= 4;
- break;
- }
-
- if(decimation) {
- /* skip the odd lines for now */
- obuf += linesize;
- }
-
- if (size > 1) {
- ll = ibuf[0] | (ibuf[1] << 8);
- ibuf += 2; /* skip over line length */
- }
- if(!decimation)
- even_line = !even_line;
- } else {
- LOG("line length was not 1 but %d after %d/%d bytes\n",
- ll, origsize-size, origsize);
- return -1;
- }
- }
-
- if(decimation) {
- /* interpolate odd rows */
- int i, j;
- u8 *prev, *next;
- prev = cam->decompressed_frame.data;
- obuf = prev+linesize;
- next = obuf+linesize;
- for(i=1; i<rows-1; i+=2) {
- for(j=0; j<linesize; ++j) {
- *obuf++ = ((int)*prev++ + *next++) / 2;
- }
- prev += linesize;
- obuf += linesize;
- next += linesize;
- }
- /* last row is odd, just copy previous row */
- memcpy(obuf, prev, linesize);
- }
-
- cam->decompressed_frame.count = obuf-cam->decompressed_frame.data;
-
- return cam->decompressed_frame.count;
-}
-
-/* InitStreamCap wrapper to select correct start line */
-static inline int init_stream_cap(struct cam_data *cam)
-{
- return do_command(cam, CPIA_COMMAND_InitStreamCap,
- 0, cam->params.streamStartLine, 0, 0);
-}
-
-
-/* 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
-
-/* update various camera modes and settings */
-static void dispatch_commands(struct cam_data *cam)
-{
- mutex_lock(&cam->param_lock);
- if (cam->cmd_queue==COMMAND_NONE) {
- mutex_unlock(&cam->param_lock);
- return;
- }
- DEB_BYTE(cam->cmd_queue);
- DEB_BYTE(cam->cmd_queue>>8);
- if (cam->cmd_queue & COMMAND_SETFORMAT) {
- do_command(cam, CPIA_COMMAND_SetFormat,
- cam->params.format.videoSize,
- cam->params.format.subSample,
- cam->params.format.yuvOrder, 0);
- do_command(cam, CPIA_COMMAND_SetROI,
- cam->params.roi.colStart, cam->params.roi.colEnd,
- cam->params.roi.rowStart, cam->params.roi.rowEnd);
- cam->first_frame = 1;
- }
-
- if (cam->cmd_queue & COMMAND_SETCOLOURPARAMS)
- do_command(cam, CPIA_COMMAND_SetColourParams,
- cam->params.colourParams.brightness,
- cam->params.colourParams.contrast,
- cam->params.colourParams.saturation, 0);
-
- if (cam->cmd_queue & COMMAND_SETAPCOR)
- do_command(cam, CPIA_COMMAND_SetApcor,
- cam->params.apcor.gain1,
- cam->params.apcor.gain2,
- cam->params.apcor.gain4,
- cam->params.apcor.gain8);
-
- if (cam->cmd_queue & COMMAND_SETVLOFFSET)
- do_command(cam, CPIA_COMMAND_SetVLOffset,
- cam->params.vlOffset.gain1,
- cam->params.vlOffset.gain2,
- cam->params.vlOffset.gain4,
- cam->params.vlOffset.gain8);
-
- if (cam->cmd_queue & COMMAND_SETEXPOSURE) {
- do_command_extended(cam, CPIA_COMMAND_SetExposure,
- cam->params.exposure.gainMode,
- 1,
- cam->params.exposure.compMode,
- cam->params.exposure.centreWeight,
- cam->params.exposure.gain,
- cam->params.exposure.fineExp,
- cam->params.exposure.coarseExpLo,
- cam->params.exposure.coarseExpHi,
- cam->params.exposure.redComp,
- cam->params.exposure.green1Comp,
- cam->params.exposure.green2Comp,
- cam->params.exposure.blueComp);
- if(cam->params.exposure.expMode != 1) {
- do_command_extended(cam, CPIA_COMMAND_SetExposure,
- 0,
- cam->params.exposure.expMode,
- 0, 0,
- cam->params.exposure.gain,
- cam->params.exposure.fineExp,
- cam->params.exposure.coarseExpLo,
- cam->params.exposure.coarseExpHi,
- 0, 0, 0, 0);
- }
- }
-
- if (cam->cmd_queue & COMMAND_SETCOLOURBALANCE) {
- if (cam->params.colourBalance.balanceMode == 1) {
- do_command(cam, CPIA_COMMAND_SetColourBalance,
- 1,
- cam->params.colourBalance.redGain,
- cam->params.colourBalance.greenGain,
- cam->params.colourBalance.blueGain);
- do_command(cam, CPIA_COMMAND_SetColourBalance,
- 3, 0, 0, 0);
- }
- if (cam->params.colourBalance.balanceMode == 2) {
- do_command(cam, CPIA_COMMAND_SetColourBalance,
- 2, 0, 0, 0);
- }
- if (cam->params.colourBalance.balanceMode == 3) {
- do_command(cam, CPIA_COMMAND_SetColourBalance,
- 3, 0, 0, 0);
- }
- }
-
- if (cam->cmd_queue & COMMAND_SETCOMPRESSIONTARGET)
- do_command(cam, CPIA_COMMAND_SetCompressionTarget,
- cam->params.compressionTarget.frTargeting,
- cam->params.compressionTarget.targetFR,
- cam->params.compressionTarget.targetQ, 0);
-
- if (cam->cmd_queue & COMMAND_SETYUVTHRESH)
- do_command(cam, CPIA_COMMAND_SetYUVThresh,
- cam->params.yuvThreshold.yThreshold,
- cam->params.yuvThreshold.uvThreshold, 0, 0);
-
- if (cam->cmd_queue & COMMAND_SETCOMPRESSIONPARAMS)
- do_command_extended(cam, CPIA_COMMAND_SetCompressionParams,
- 0, 0, 0, 0,
- cam->params.compressionParams.hysteresis,
- cam->params.compressionParams.threshMax,
- cam->params.compressionParams.smallStep,
- cam->params.compressionParams.largeStep,
- cam->params.compressionParams.decimationHysteresis,
- cam->params.compressionParams.frDiffStepThresh,
- cam->params.compressionParams.qDiffStepThresh,
- cam->params.compressionParams.decimationThreshMod);
-
- if (cam->cmd_queue & COMMAND_SETCOMPRESSION)
- do_command(cam, CPIA_COMMAND_SetCompression,
- cam->params.compression.mode,
- cam->params.compression.decimation, 0, 0);
-
- if (cam->cmd_queue & COMMAND_SETSENSORFPS)
- do_command(cam, CPIA_COMMAND_SetSensorFPS,
- cam->params.sensorFps.divisor,
- cam->params.sensorFps.baserate, 0, 0);
-
- if (cam->cmd_queue & COMMAND_SETFLICKERCTRL)
- do_command(cam, CPIA_COMMAND_SetFlickerCtrl,
- cam->params.flickerControl.flickerMode,
- cam->params.flickerControl.coarseJump,
- abs(cam->params.flickerControl.allowableOverExposure),
- 0);
-
- if (cam->cmd_queue & COMMAND_SETECPTIMING)
- do_command(cam, CPIA_COMMAND_SetECPTiming,
- cam->params.ecpTiming, 0, 0, 0);
-
- if (cam->cmd_queue & COMMAND_PAUSE)
- do_command(cam, CPIA_COMMAND_EndStreamCap, 0, 0, 0, 0);
-
- if (cam->cmd_queue & COMMAND_RESUME)
- init_stream_cap(cam);
-
- if (cam->cmd_queue & COMMAND_SETLIGHTS && cam->params.qx3.qx3_detected)
- {
- int p1 = (cam->params.qx3.bottomlight == 0) << 1;
- int p2 = (cam->params.qx3.toplight == 0) << 3;
- do_command(cam, CPIA_COMMAND_WriteVCReg, 0x90, 0x8F, 0x50, 0);
- do_command(cam, CPIA_COMMAND_WriteMCPort, 2, 0, (p1|p2|0xE0), 0);
- }
-
- cam->cmd_queue = COMMAND_NONE;
- mutex_unlock(&cam->param_lock);
- return;
-}
-
-
-
-static void set_flicker(struct cam_params *params, volatile u32 *command_flags,
- int on)
-{
- /* Everything in here is from the Windows driver */
-#define FIRMWARE_VERSION(x,y) (params->version.firmwareVersion == (x) && \
- params->version.firmwareRevision == (y))
-/* 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
-
-
- int currentexp = params->exposure.coarseExpLo +
- params->exposure.coarseExpHi*256;
- int startexp;
- if (on) {
- int cj = params->flickerControl.coarseJump;
- params->flickerControl.flickerMode = 1;
- params->flickerControl.disabled = 0;
- if(params->exposure.expMode != 2)
- *command_flags |= COMMAND_SETEXPOSURE;
- params->exposure.expMode = 2;
- currentexp = currentexp << params->exposure.gain;
- 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;
- params->exposure.coarseExpLo = startexp & 0xff;
- params->exposure.coarseExpHi = startexp >> 8;
- if (currentexp > startexp) {
- if (currentexp > (2 * startexp))
- currentexp = 2 * startexp;
- params->exposure.redComp = COMPGAIN (COMP_RED, currentexp, startexp);
- params->exposure.green1Comp = COMPGAIN (COMP_GREEN1, currentexp, startexp);
- params->exposure.green2Comp = COMPGAIN (COMP_GREEN2, currentexp, startexp);
- params->exposure.blueComp = COMPGAIN (COMP_BLUE, currentexp, startexp);
- } else {
- params->exposure.redComp = COMP_RED;
- params->exposure.green1Comp = COMP_GREEN1;
- params->exposure.green2Comp = COMP_GREEN2;
- params->exposure.blueComp = COMP_BLUE;
- }
- if(FIRMWARE_VERSION(1,2))
- params->exposure.compMode = 0;
- else
- params->exposure.compMode = 1;
-
- params->apcor.gain1 = 0x18;
- params->apcor.gain2 = 0x18;
- params->apcor.gain4 = 0x16;
- params->apcor.gain8 = 0x14;
- *command_flags |= COMMAND_SETAPCOR;
- } else {
- params->flickerControl.flickerMode = 0;
- params->flickerControl.disabled = 1;
- /* Coarse = average of equivalent coarse for each comp channel */
- startexp = EXP_FROM_COMP(COMP_RED, params->exposure.redComp, currentexp);
- startexp += EXP_FROM_COMP(COMP_GREEN1, params->exposure.green1Comp, currentexp);
- startexp += EXP_FROM_COMP(COMP_GREEN2, params->exposure.green2Comp, currentexp);
- startexp += EXP_FROM_COMP(COMP_BLUE, params->exposure.blueComp, currentexp);
- startexp = startexp >> 2;
- while(startexp > MAX_EXP &&
- params->exposure.gain < params->exposure.gainMode-1) {
- startexp = startexp >> 1;
- ++params->exposure.gain;
- }
- if(FIRMWARE_VERSION(1,2) && startexp > MAX_EXP_102)
- startexp = MAX_EXP_102;
- if(startexp > MAX_EXP)
- startexp = MAX_EXP;
- params->exposure.coarseExpLo = startexp&0xff;
- params->exposure.coarseExpHi = startexp >> 8;
- params->exposure.redComp = COMP_RED;
- params->exposure.green1Comp = COMP_GREEN1;
- params->exposure.green2Comp = COMP_GREEN2;
- params->exposure.blueComp = COMP_BLUE;
- params->exposure.compMode = 1;
- *command_flags |= COMMAND_SETEXPOSURE;
- params->apcor.gain1 = 0x18;
- params->apcor.gain2 = 0x16;
- params->apcor.gain4 = 0x24;
- params->apcor.gain8 = 0x34;
- *command_flags |= COMMAND_SETAPCOR;
- }
- params->vlOffset.gain1 = 20;
- params->vlOffset.gain2 = 24;
- params->vlOffset.gain4 = 26;
- params->vlOffset.gain8 = 26;
- *command_flags |= COMMAND_SETVLOFFSET;
-#undef FIRMWARE_VERSION
-#undef EXP_FROM_COMP
-#undef COMPGAIN
-}
-
-#define FIRMWARE_VERSION(x,y) (cam->params.version.firmwareVersion == (x) && \
- cam->params.version.firmwareRevision == (y))
-/* monitor the exposure and adjust the sensor frame rate if needed */
-static void monitor_exposure(struct cam_data *cam)
-{
- u8 exp_acc, bcomp, gain, coarseL, cmd[8], data[8];
- int retval, light_exp, dark_exp, very_dark_exp;
- int old_exposure, new_exposure, framerate;
-
- /* 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;
- retval = cam->ops->transferCmd(cam->lowlevel_data, cmd, data);
- if (retval) {
- LOG("ReadVPRegs(30,4,9,8) - failed, retval=%d\n",
- retval);
- return;
- }
- exp_acc = data[0];
- bcomp = data[1];
- gain = data[2];
- coarseL = data[3];
-
- mutex_lock(&cam->param_lock);
- light_exp = cam->params.colourParams.brightness +
- TC - 50 + EXP_ACC_LIGHT;
- if(light_exp > 255)
- light_exp = 255;
- dark_exp = cam->params.colourParams.brightness +
- TC - 50 - EXP_ACC_DARK;
- if(dark_exp < 0)
- dark_exp = 0;
- very_dark_exp = dark_exp/2;
-
- old_exposure = cam->params.exposure.coarseExpHi * 256 +
- cam->params.exposure.coarseExpLo;
-
- if(!cam->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(cam->exposure_status == EXPOSURE_VERY_DARK)
- ++cam->exposure_count;
- else {
- cam->exposure_status = EXPOSURE_VERY_DARK;
- cam->exposure_count = 1;
- }
- } else {
- /* just dark */
- if(cam->exposure_status == EXPOSURE_DARK)
- ++cam->exposure_count;
- else {
- cam->exposure_status = EXPOSURE_DARK;
- cam->exposure_count = 1;
- }
- }
- } else if(old_exposure <= LOW_EXP || exp_acc > light_exp) {
- /* light */
- if(old_exposure <= VERY_LOW_EXP) {
- /* very light */
- if(cam->exposure_status == EXPOSURE_VERY_LIGHT)
- ++cam->exposure_count;
- else {
- cam->exposure_status = EXPOSURE_VERY_LIGHT;
- cam->exposure_count = 1;
- }
- } else {
- /* just light */
- if(cam->exposure_status == EXPOSURE_LIGHT)
- ++cam->exposure_count;
- else {
- cam->exposure_status = EXPOSURE_LIGHT;
- cam->exposure_count = 1;
- }
- }
- } else {
- /* not dark or light */
- cam->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(cam->exposure_status == EXPOSURE_VERY_DARK)
- ++cam->exposure_count;
- else {
- cam->exposure_status = EXPOSURE_VERY_DARK;
- cam->exposure_count = 1;
- }
- } else {
- /* just dark */
- if(cam->exposure_status == EXPOSURE_DARK)
- ++cam->exposure_count;
- else {
- cam->exposure_status = EXPOSURE_DARK;
- cam->exposure_count = 1;
- }
- }
- } else if(old_exposure <= LOW_EXP || exp_acc > light_exp) {
- /* light */
- if(old_exposure <= VERY_LOW_EXP) {
- /* very light */
- if(cam->exposure_status == EXPOSURE_VERY_LIGHT)
- ++cam->exposure_count;
- else {
- cam->exposure_status = EXPOSURE_VERY_LIGHT;
- cam->exposure_count = 1;
- }
- } else {
- /* just light */
- if(cam->exposure_status == EXPOSURE_LIGHT)
- ++cam->exposure_count;
- else {
- cam->exposure_status = EXPOSURE_LIGHT;
- cam->exposure_count = 1;
- }
- }
- } else {
- /* not dark or light */
- cam->exposure_status = EXPOSURE_NORMAL;
- }
- }
-
- framerate = cam->fps;
- if(framerate > 30 || framerate < 1)
- framerate = 1;
-
- if(!cam->params.flickerControl.disabled) {
- /* Flicker control on */
- if((cam->exposure_status == EXPOSURE_VERY_DARK ||
- cam->exposure_status == EXPOSURE_DARK) &&
- cam->exposure_count >= DARK_TIME*framerate &&
- cam->params.sensorFps.divisor < 3) {
-
- /* dark for too long */
- ++cam->params.sensorFps.divisor;
- cam->cmd_queue |= COMMAND_SETSENSORFPS;
-
- cam->params.flickerControl.coarseJump =
- flicker_jumps[cam->mainsFreq]
- [cam->params.sensorFps.baserate]
- [cam->params.sensorFps.divisor];
- cam->cmd_queue |= COMMAND_SETFLICKERCTRL;
-
- new_exposure = cam->params.flickerControl.coarseJump-1;
- while(new_exposure < old_exposure/2)
- new_exposure += cam->params.flickerControl.coarseJump;
- cam->params.exposure.coarseExpLo = new_exposure & 0xff;
- cam->params.exposure.coarseExpHi = new_exposure >> 8;
- cam->cmd_queue |= COMMAND_SETEXPOSURE;
- cam->exposure_status = EXPOSURE_NORMAL;
- LOG("Automatically decreasing sensor_fps\n");
-
- } else if((cam->exposure_status == EXPOSURE_VERY_LIGHT ||
- cam->exposure_status == EXPOSURE_LIGHT) &&
- cam->exposure_count >= LIGHT_TIME*framerate &&
- cam->params.sensorFps.divisor > 0) {
-
- /* light for too long */
- int max_exp = FIRMWARE_VERSION(1,2) ? MAX_EXP_102 : MAX_EXP ;
-
- --cam->params.sensorFps.divisor;
- cam->cmd_queue |= COMMAND_SETSENSORFPS;
-
- cam->params.flickerControl.coarseJump =
- flicker_jumps[cam->mainsFreq]
- [cam->params.sensorFps.baserate]
- [cam->params.sensorFps.divisor];
- cam->cmd_queue |= COMMAND_SETFLICKERCTRL;
-
- new_exposure = cam->params.flickerControl.coarseJump-1;
- while(new_exposure < 2*old_exposure &&
- new_exposure+
- cam->params.flickerControl.coarseJump < max_exp)
- new_exposure += cam->params.flickerControl.coarseJump;
- cam->params.exposure.coarseExpLo = new_exposure & 0xff;
- cam->params.exposure.coarseExpHi = new_exposure >> 8;
- cam->cmd_queue |= COMMAND_SETEXPOSURE;
- cam->exposure_status = EXPOSURE_NORMAL;
- LOG("Automatically increasing sensor_fps\n");
- }
- } else {
- /* Flicker control off */
- if((cam->exposure_status == EXPOSURE_VERY_DARK ||
- cam->exposure_status == EXPOSURE_DARK) &&
- cam->exposure_count >= DARK_TIME*framerate &&
- cam->params.sensorFps.divisor < 3) {
-
- /* dark for too long */
- ++cam->params.sensorFps.divisor;
- cam->cmd_queue |= COMMAND_SETSENSORFPS;
-
- if(cam->params.exposure.gain > 0) {
- --cam->params.exposure.gain;
- cam->cmd_queue |= COMMAND_SETEXPOSURE;
- }
- cam->exposure_status = EXPOSURE_NORMAL;
- LOG("Automatically decreasing sensor_fps\n");
-
- } else if((cam->exposure_status == EXPOSURE_VERY_LIGHT ||
- cam->exposure_status == EXPOSURE_LIGHT) &&
- cam->exposure_count >= LIGHT_TIME*framerate &&
- cam->params.sensorFps.divisor > 0) {
-
- /* light for too long */
- --cam->params.sensorFps.divisor;
- cam->cmd_queue |= COMMAND_SETSENSORFPS;
-
- if(cam->params.exposure.gain <
- cam->params.exposure.gainMode-1) {
- ++cam->params.exposure.gain;
- cam->cmd_queue |= COMMAND_SETEXPOSURE;
- }
- cam->exposure_status = EXPOSURE_NORMAL;
- LOG("Automatically increasing sensor_fps\n");
- }
- }
- mutex_unlock(&cam->param_lock);
-}
-
-/*-----------------------------------------------------------------*/
-/* 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 cam_data *cam)
-{
- int cam_exposure, old_exp;
- if(!FIRMWARE_VERSION(1,2))
- return;
- mutex_lock(&cam->param_lock);
- if(cam->params.flickerControl.flickerMode == 0 ||
- cam->raw_image[39] == 0) {
- mutex_unlock(&cam->param_lock);
- return;
- }
- cam_exposure = cam->raw_image[39]*2;
- old_exp = cam->params.exposure.coarseExpLo +
- cam->params.exposure.coarseExpHi*256;
- /*
- see how far away camera exposure is from a valid
- flicker exposure value
- */
- cam_exposure %= cam->params.flickerControl.coarseJump;
- if(!cam->params.flickerControl.disabled &&
- cam_exposure <= cam->params.flickerControl.coarseJump - 3) {
- /* Flicker control auto-disabled */
- cam->params.flickerControl.disabled = 1;
- }
-
- if(cam->params.flickerControl.disabled &&
- cam->params.flickerControl.flickerMode &&
- old_exp > cam->params.flickerControl.coarseJump +
- ROUND_UP_EXP_FOR_FLICKER) {
- /* exposure is now high enough to switch
- flicker control back on */
- set_flicker(&cam->params, &cam->cmd_queue, 1);
- if((cam->cmd_queue & COMMAND_SETEXPOSURE) &&
- cam->params.exposure.expMode == 2)
- cam->exposure_status = EXPOSURE_NORMAL;
-
- }
- mutex_unlock(&cam->param_lock);
-}
-#undef FIRMWARE_VERSION
-
-static int clear_stall(struct cam_data *cam)
-{
- /* FIXME: Does this actually work? */
- LOG("Clearing stall\n");
-
- cam->ops->streamRead(cam->lowlevel_data, cam->raw_image, 0);
- do_command(cam, CPIA_COMMAND_GetCameraStatus,0,0,0,0);
- return cam->params.status.streamState != STREAM_PAUSED;
-}
-
-/* kernel thread function to read image from camera */
-static int fetch_frame(void *data)
-{
- int image_size, retry;
- struct cam_data *cam = (struct cam_data *)data;
- unsigned long oldjif, rate, diff;
-
- /* Allow up to two bad images in a row to be read and
- * ignored before an error is reported */
- for (retry = 0; retry < 3; ++retry) {
- if (retry)
- DBG("retry=%d\n", retry);
-
- if (!cam->ops)
- continue;
-
- /* load first frame always uncompressed */
- if (cam->first_frame &&
- cam->params.compression.mode != CPIA_COMPRESSION_NONE) {
- do_command(cam, CPIA_COMMAND_SetCompression,
- CPIA_COMPRESSION_NONE,
- NO_DECIMATION, 0, 0);
- /* Trial & error - Discarding a frame prevents the
- first frame from having an error in the data. */
- do_command(cam, CPIA_COMMAND_DiscardFrame, 0, 0, 0, 0);
- }
-
- /* init camera upload */
- if (do_command(cam, CPIA_COMMAND_GrabFrame, 0,
- cam->params.streamStartLine, 0, 0))
- continue;
-
- if (cam->ops->wait_for_stream_ready) {
- /* loop until image ready */
- int count = 0;
- do_command(cam, CPIA_COMMAND_GetCameraStatus,0,0,0,0);
- while (cam->params.status.streamState != STREAM_READY) {
- if(++count > READY_TIMEOUT)
- break;
- if(cam->params.status.streamState ==
- STREAM_PAUSED) {
- /* Bad news */
- if(!clear_stall(cam))
- return -EIO;
- }
-
- cond_resched();
-
- /* sleep for 10 ms, hopefully ;) */
- msleep_interruptible(10);
- if (signal_pending(current))
- return -EINTR;
-
- do_command(cam, CPIA_COMMAND_GetCameraStatus,
- 0, 0, 0, 0);
- }
- if(cam->params.status.streamState != STREAM_READY) {
- continue;
- }
- }
-
- cond_resched();
-
- /* grab image from camera */
- oldjif = jiffies;
- image_size = cam->ops->streamRead(cam->lowlevel_data,
- cam->raw_image, 0);
- if (image_size <= 0) {
- DBG("streamRead failed: %d\n", image_size);
- continue;
- }
-
- rate = image_size * HZ / 1024;
- diff = jiffies-oldjif;
- cam->transfer_rate = diff==0 ? rate : rate/diff;
- /* diff==0 ? unlikely but possible */
-
- /* Switch flicker control back on if it got turned off */
- restart_flicker(cam);
-
- /* If AEC is enabled, monitor the exposure and
- adjust the sensor frame rate if needed */
- if(cam->params.exposure.expMode == 2)
- monitor_exposure(cam);
-
- /* camera idle now so dispatch queued commands */
- dispatch_commands(cam);
-
- /* Update our knowledge of the camera state */
- do_command(cam, CPIA_COMMAND_GetColourBalance, 0, 0, 0, 0);
- do_command(cam, CPIA_COMMAND_GetExposure, 0, 0, 0, 0);
- do_command(cam, CPIA_COMMAND_ReadMCPorts, 0, 0, 0, 0);
-
- /* decompress and convert image to by copying it from
- * raw_image to decompressed_frame
- */
-
- cond_resched();
-
- cam->image_size = parse_picture(cam, image_size);
- if (cam->image_size <= 0) {
- DBG("parse_picture failed %d\n", cam->image_size);
- if(cam->params.compression.mode !=
- CPIA_COMPRESSION_NONE) {
- /* Compression may not work right if we
- had a bad frame, get the next one
- uncompressed. */
- cam->first_frame = 1;
- do_command(cam, CPIA_COMMAND_SetGrabMode,
- CPIA_GRAB_SINGLE, 0, 0, 0);
- /* FIXME: Trial & error - need up to 70ms for
- the grab mode change to complete ? */
- msleep_interruptible(70);
- if (signal_pending(current))
- return -EINTR;
- }
- } else
- break;
- }
-
- if (retry < 3) {
- /* FIXME: this only works for double buffering */
- if (cam->frame[cam->curframe].state == FRAME_READY) {
- memcpy(cam->frame[cam->curframe].data,
- cam->decompressed_frame.data,
- cam->decompressed_frame.count);
- cam->frame[cam->curframe].state = FRAME_DONE;
- } else
- cam->decompressed_frame.state = FRAME_DONE;
-
- if (cam->first_frame) {
- cam->first_frame = 0;
- do_command(cam, CPIA_COMMAND_SetCompression,
- cam->params.compression.mode,
- cam->params.compression.decimation, 0, 0);
-
- /* Switch from single-grab to continuous grab */
- do_command(cam, CPIA_COMMAND_SetGrabMode,
- CPIA_GRAB_CONTINUOUS, 0, 0, 0);
- }
- return 0;
- }
- return -EIO;
-}
-
-static int capture_frame(struct cam_data *cam, struct video_mmap *vm)
-{
- if (!cam->frame_buf) {
- /* we do lazy allocation */
- int err;
- if ((err = allocate_frame_buf(cam)))
- return err;
- }
-
- cam->curframe = vm->frame;
- cam->frame[cam->curframe].state = FRAME_READY;
- return fetch_frame(cam);
-}
-
-static int goto_high_power(struct cam_data *cam)
-{
- if (do_command(cam, CPIA_COMMAND_GotoHiPower, 0, 0, 0, 0))
- return -EIO;
- msleep_interruptible(40); /* windows driver does it too */
- if(signal_pending(current))
- return -EINTR;
- if (do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0))
- return -EIO;
- if (cam->params.status.systemState == HI_POWER_STATE) {
- DBG("camera now in HIGH power state\n");
- return 0;
- }
- printstatus(cam);
- return -EIO;
-}
-
-static int goto_low_power(struct cam_data *cam)
-{
- if (do_command(cam, CPIA_COMMAND_GotoLoPower, 0, 0, 0, 0))
- return -1;
- if (do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0))
- return -1;
- if (cam->params.status.systemState == LO_POWER_STATE) {
- DBG("camera now in LOW power state\n");
- return 0;
- }
- printstatus(cam);
- return -1;
-}
-
-static void save_camera_state(struct cam_data *cam)
-{
- if(!(cam->cmd_queue & COMMAND_SETCOLOURBALANCE))
- do_command(cam, CPIA_COMMAND_GetColourBalance, 0, 0, 0, 0);
- if(!(cam->cmd_queue & COMMAND_SETEXPOSURE))
- do_command(cam, CPIA_COMMAND_GetExposure, 0, 0, 0, 0);
-
- DBG("%d/%d/%d/%d/%d/%d/%d/%d\n",
- cam->params.exposure.gain,
- cam->params.exposure.fineExp,
- cam->params.exposure.coarseExpLo,
- cam->params.exposure.coarseExpHi,
- cam->params.exposure.redComp,
- cam->params.exposure.green1Comp,
- cam->params.exposure.green2Comp,
- cam->params.exposure.blueComp);
- DBG("%d/%d/%d\n",
- cam->params.colourBalance.redGain,
- cam->params.colourBalance.greenGain,
- cam->params.colourBalance.blueGain);
-}
-
-static int set_camera_state(struct cam_data *cam)
-{
- cam->cmd_queue = COMMAND_SETCOMPRESSION |
- COMMAND_SETCOMPRESSIONTARGET |
- COMMAND_SETCOLOURPARAMS |
- COMMAND_SETFORMAT |
- COMMAND_SETYUVTHRESH |
- COMMAND_SETECPTIMING |
- COMMAND_SETCOMPRESSIONPARAMS |
- COMMAND_SETEXPOSURE |
- COMMAND_SETCOLOURBALANCE |
- COMMAND_SETSENSORFPS |
- COMMAND_SETAPCOR |
- COMMAND_SETFLICKERCTRL |
- COMMAND_SETVLOFFSET;
-
- do_command(cam, CPIA_COMMAND_SetGrabMode, CPIA_GRAB_SINGLE,0,0,0);
- dispatch_commands(cam);
-
- /* Wait 6 frames for the sensor to get all settings and
- AEC/ACB to settle */
- msleep_interruptible(6*(cam->params.sensorFps.baserate ? 33 : 40) *
- (1 << cam->params.sensorFps.divisor) + 10);
-
- if(signal_pending(current))
- return -EINTR;
-
- save_camera_state(cam);
-
- return 0;
-}
-
-static void get_version_information(struct cam_data *cam)
-{
- /* GetCPIAVersion */
- do_command(cam, CPIA_COMMAND_GetCPIAVersion, 0, 0, 0, 0);
-
- /* GetPnPID */
- do_command(cam, CPIA_COMMAND_GetPnPID, 0, 0, 0, 0);
-}
-
-/* initialize camera */
-static int reset_camera(struct cam_data *cam)
-{
- int err;
- /* Start the camera in low power mode */
- if (goto_low_power(cam)) {
- if (cam->params.status.systemState != WARM_BOOT_STATE)
- return -ENODEV;
-
- /* FIXME: this is just dirty trial and error */
- err = goto_high_power(cam);
- if(err)
- return err;
- do_command(cam, CPIA_COMMAND_DiscardFrame, 0, 0, 0, 0);
- if (goto_low_power(cam))
- return -ENODEV;
- }
-
- /* procedure described in developer's guide p3-28 */
-
- /* Check the firmware version. */
- cam->params.version.firmwareVersion = 0;
- get_version_information(cam);
- if (cam->params.version.firmwareVersion != 1)
- return -ENODEV;
-
- /* A bug in firmware 1-02 limits gainMode to 2 */
- if(cam->params.version.firmwareRevision <= 2 &&
- cam->params.exposure.gainMode > 2) {
- cam->params.exposure.gainMode = 2;
- }
-
- /* set QX3 detected flag */
- cam->params.qx3.qx3_detected = (cam->params.pnpID.vendor == 0x0813 &&
- cam->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 */
- do_command(cam, CPIA_COMMAND_ModifyCameraStatus, STREAMSTATE, 0,
- STREAM_NOT_READY, 0);
-
- /* GotoHiPower */
- err = goto_high_power(cam);
- if (err)
- return err;
-
- /* Check the camera status */
- if (do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0))
- return -EIO;
-
- if (cam->params.status.fatalError) {
- DBG("fatal_error: %#04x\n",
- cam->params.status.fatalError);
- DBG("vp_status: %#04x\n",
- cam->params.status.vpStatus);
- if (cam->params.status.fatalError & ~(COM_FLAG|CPIA_FLAG)) {
- /* Fatal error in camera */
- return -EIO;
- } else if (cam->params.status.fatalError & (COM_FLAG|CPIA_FLAG)) {
- /* Firmware 1-02 may do this for parallel port cameras,
- * just clear the flags (developer's guide p 3-38) */
- do_command(cam, CPIA_COMMAND_ModifyCameraStatus,
- FATALERROR, ~(COM_FLAG|CPIA_FLAG), 0, 0);
- }
- }
-
- /* Check the camera status again */
- if (cam->params.status.fatalError) {
- if (cam->params.status.fatalError)
- return -EIO;
- }
-
- /* VPVersion can't be retrieved before the camera is in HiPower,
- * so get it here instead of in get_version_information. */
- do_command(cam, CPIA_COMMAND_GetVPVersion, 0, 0, 0, 0);
-
- /* set camera to a known state */
- return set_camera_state(cam);
-}
-
-static void put_cam(struct cpia_camera_ops* ops)
-{
- module_put(ops->owner);
-}
-
-/* ------------------------- V4L interface --------------------- */
-static int cpia_open(struct file *file)
-{
- struct video_device *dev = video_devdata(file);
- struct cam_data *cam = video_get_drvdata(dev);
- int err;
-
- if (!cam) {
- DBG("Internal error, cam_data not found!\n");
- return -ENODEV;
- }
-
- if (cam->open_count > 0) {
- DBG("Camera already open\n");
- return -EBUSY;
- }
-
- if (!try_module_get(cam->ops->owner))
- return -ENODEV;
-
- mutex_lock(&cam->busy_lock);
- err = -ENOMEM;
- if (!cam->raw_image) {
- cam->raw_image = rvmalloc(CPIA_MAX_IMAGE_SIZE);
- if (!cam->raw_image)
- goto oops;
- }
-
- if (!cam->decompressed_frame.data) {
- cam->decompressed_frame.data = rvmalloc(CPIA_MAX_FRAME_SIZE);
- if (!cam->decompressed_frame.data)
- goto oops;
- }
-
- /* open cpia */
- err = -ENODEV;
- if (cam->ops->open(cam->lowlevel_data))
- goto oops;
-
- /* reset the camera */
- if ((err = reset_camera(cam)) != 0) {
- cam->ops->close(cam->lowlevel_data);
- goto oops;
- }
-
- /* Set ownership of /proc/cpia/videoX to current user */
- if(cam->proc_entry)
- cam->proc_entry->uid = current_euid();
-
- /* set mark for loading first frame uncompressed */
- cam->first_frame = 1;
-
- /* init it to something */
- cam->mmap_kludge = 0;
-
- ++cam->open_count;
- file->private_data = dev;
- mutex_unlock(&cam->busy_lock);
- return 0;
-
- oops:
- if (cam->decompressed_frame.data) {
- rvfree(cam->decompressed_frame.data, CPIA_MAX_FRAME_SIZE);
- cam->decompressed_frame.data = NULL;
- }
- if (cam->raw_image) {
- rvfree(cam->raw_image, CPIA_MAX_IMAGE_SIZE);
- cam->raw_image = NULL;
- }
- mutex_unlock(&cam->busy_lock);
- put_cam(cam->ops);
- return err;
-}
-
-static int cpia_close(struct file *file)
-{
- struct video_device *dev = file->private_data;
- struct cam_data *cam = video_get_drvdata(dev);
-
- if (cam->ops) {
- /* Return ownership of /proc/cpia/videoX to root */
- if(cam->proc_entry)
- cam->proc_entry->uid = 0;
-
- /* save camera state for later open (developers guide ch 3.5.3) */
- save_camera_state(cam);
-
- /* GotoLoPower */
- goto_low_power(cam);
-
- /* Update the camera status */
- do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0);
-
- /* cleanup internal state stuff */
- free_frames(cam->frame);
-
- /* close cpia */
- cam->ops->close(cam->lowlevel_data);
-
- put_cam(cam->ops);
- }
-
- if (--cam->open_count == 0) {
- /* clean up capture-buffers */
- if (cam->raw_image) {
- rvfree(cam->raw_image, CPIA_MAX_IMAGE_SIZE);
- cam->raw_image = NULL;
- }
-
- if (cam->decompressed_frame.data) {
- rvfree(cam->decompressed_frame.data, CPIA_MAX_FRAME_SIZE);
- cam->decompressed_frame.data = NULL;
- }
-
- if (cam->frame_buf)
- free_frame_buf(cam);
-
- if (!cam->ops)
- kfree(cam);
- }
- file->private_data = NULL;
-
- return 0;
-}
-
-static ssize_t cpia_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct video_device *dev = file->private_data;
- struct cam_data *cam = video_get_drvdata(dev);
- int err;
-
- /* make this _really_ smp and multithread-safe */
- if (mutex_lock_interruptible(&cam->busy_lock))
- return -EINTR;
-
- if (!buf) {
- DBG("buf NULL\n");
- mutex_unlock(&cam->busy_lock);
- return -EINVAL;
- }
-
- if (!count) {
- DBG("count 0\n");
- mutex_unlock(&cam->busy_lock);
- return 0;
- }
-
- if (!cam->ops) {
- DBG("ops NULL\n");
- mutex_unlock(&cam->busy_lock);
- return -ENODEV;
- }
-
- /* upload frame */
- cam->decompressed_frame.state = FRAME_READY;
- cam->mmap_kludge=0;
- if((err = fetch_frame(cam)) != 0) {
- DBG("ERROR from fetch_frame: %d\n", err);
- mutex_unlock(&cam->busy_lock);
- return err;
- }
- cam->decompressed_frame.state = FRAME_UNUSED;
-
- /* copy data to user space */
- if (cam->decompressed_frame.count > count) {
- DBG("count wrong: %d, %lu\n", cam->decompressed_frame.count,
- (unsigned long) count);
- mutex_unlock(&cam->busy_lock);
- return -EFAULT;
- }
- if (copy_to_user(buf, cam->decompressed_frame.data,
- cam->decompressed_frame.count)) {
- DBG("copy_to_user failed\n");
- mutex_unlock(&cam->busy_lock);
- return -EFAULT;
- }
-
- mutex_unlock(&cam->busy_lock);
- return cam->decompressed_frame.count;
-}
-
-static long cpia_do_ioctl(struct file *file, unsigned int cmd, void *arg)
-{
- struct video_device *dev = file->private_data;
- struct cam_data *cam = video_get_drvdata(dev);
- int retval = 0;
-
- if (!cam || !cam->ops)
- return -ENODEV;
-
- /* make this _really_ smp-safe */
- if (mutex_lock_interruptible(&cam->busy_lock))
- return -EINTR;
-
- /* DBG("cpia_ioctl: %u\n", cmd); */
-
- switch (cmd) {
- /* query capabilities */
- case VIDIOCGCAP:
- {
- struct video_capability *b = arg;
-
- DBG("VIDIOCGCAP\n");
- strcpy(b->name, "CPiA Camera");
- b->type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE;
- b->channels = 1;
- b->audios = 0;
- b->maxwidth = 352; /* VIDEOSIZE_CIF */
- b->maxheight = 288;
- b->minwidth = 48; /* VIDEOSIZE_48_48 */
- b->minheight = 48;
- break;
- }
-
- /* get/set video source - we are a camera and nothing else */
- case VIDIOCGCHAN:
- {
- struct video_channel *v = arg;
-
- DBG("VIDIOCGCHAN\n");
- if (v->channel != 0) {
- retval = -EINVAL;
- break;
- }
-
- v->channel = 0;
- strcpy(v->name, "Camera");
- v->tuners = 0;
- v->flags = 0;
- v->type = VIDEO_TYPE_CAMERA;
- v->norm = 0;
- break;
- }
-
- case VIDIOCSCHAN:
- {
- struct video_channel *v = arg;
-
- DBG("VIDIOCSCHAN\n");
- if (v->channel != 0)
- retval = -EINVAL;
- break;
- }
-
- /* image properties */
- case VIDIOCGPICT:
- {
- struct video_picture *pic = arg;
- DBG("VIDIOCGPICT\n");
- *pic = cam->vp;
- break;
- }
-
- case VIDIOCSPICT:
- {
- struct video_picture *vp = arg;
-
- DBG("VIDIOCSPICT\n");
-
- /* check validity */
- DBG("palette: %d\n", vp->palette);
- DBG("depth: %d\n", vp->depth);
- if (!valid_mode(vp->palette, vp->depth)) {
- retval = -EINVAL;
- break;
- }
-
- mutex_lock(&cam->param_lock);
- /* brightness, colour, contrast need no check 0-65535 */
- cam->vp = *vp;
- /* update cam->params.colourParams */
- cam->params.colourParams.brightness = vp->brightness*100/65535;
- cam->params.colourParams.contrast = vp->contrast*100/65535;
- cam->params.colourParams.saturation = vp->colour*100/65535;
- /* contrast is in steps of 8, so round */
- cam->params.colourParams.contrast =
- ((cam->params.colourParams.contrast + 3) / 8) * 8;
- if (cam->params.version.firmwareVersion == 1 &&
- cam->params.version.firmwareRevision == 2 &&
- cam->params.colourParams.contrast > 80) {
- /* 1-02 firmware limits contrast to 80 */
- cam->params.colourParams.contrast = 80;
- }
-
- /* Adjust flicker control if necessary */
- if(cam->params.flickerControl.allowableOverExposure < 0)
- cam->params.flickerControl.allowableOverExposure =
- -find_over_exposure(cam->params.colourParams.brightness);
- if(cam->params.flickerControl.flickerMode != 0)
- cam->cmd_queue |= COMMAND_SETFLICKERCTRL;
-
-
- /* queue command to update camera */
- cam->cmd_queue |= COMMAND_SETCOLOURPARAMS;
- mutex_unlock(&cam->param_lock);
- DBG("VIDIOCSPICT: %d / %d // %d / %d / %d / %d\n",
- vp->depth, vp->palette, vp->brightness, vp->hue, vp->colour,
- vp->contrast);
- break;
- }
-
- /* get/set capture window */
- case VIDIOCGWIN:
- {
- struct video_window *vw = arg;
- DBG("VIDIOCGWIN\n");
-
- *vw = cam->vw;
- break;
- }
-
- case VIDIOCSWIN:
- {
- /* copy_from_user, check validity, copy to internal structure */
- struct video_window *vw = arg;
- DBG("VIDIOCSWIN\n");
-
- if (vw->clipcount != 0) { /* clipping not supported */
- retval = -EINVAL;
- break;
- }
- if (vw->clips != NULL) { /* clipping not supported */
- retval = -EINVAL;
- break;
- }
-
- /* we set the video window to something smaller or equal to what
- * is requested by the user???
- */
- mutex_lock(&cam->param_lock);
- if (vw->width != cam->vw.width || vw->height != cam->vw.height) {
- int video_size = match_videosize(vw->width, vw->height);
-
- if (video_size < 0) {
- retval = -EINVAL;
- mutex_unlock(&cam->param_lock);
- break;
- }
- cam->video_size = video_size;
-
- /* video size is changing, reset the subcapture area */
- memset(&cam->vc, 0, sizeof(cam->vc));
-
- set_vw_size(cam);
- DBG("%d / %d\n", cam->vw.width, cam->vw.height);
- cam->cmd_queue |= COMMAND_SETFORMAT;
- }
-
- mutex_unlock(&cam->param_lock);
-
- /* setformat ignored by camera during streaming,
- * so stop/dispatch/start */
- if (cam->cmd_queue & COMMAND_SETFORMAT) {
- DBG("\n");
- dispatch_commands(cam);
- }
- DBG("%d/%d:%d\n", cam->video_size,
- cam->vw.width, cam->vw.height);
- break;
- }
-
- /* mmap interface */
- case VIDIOCGMBUF:
- {
- struct video_mbuf *vm = arg;
- int i;
-
- DBG("VIDIOCGMBUF\n");
- memset(vm, 0, sizeof(*vm));
- vm->size = CPIA_MAX_FRAME_SIZE*FRAME_NUM;
- vm->frames = FRAME_NUM;
- for (i = 0; i < FRAME_NUM; i++)
- vm->offsets[i] = CPIA_MAX_FRAME_SIZE * i;
- break;
- }
-
- case VIDIOCMCAPTURE:
- {
- struct video_mmap *vm = arg;
- int video_size;
-
- DBG("VIDIOCMCAPTURE: %d / %d / %dx%d\n", vm->format, vm->frame,
- vm->width, vm->height);
- if (vm->frame<0||vm->frame>=FRAME_NUM) {
- retval = -EINVAL;
- break;
- }
-
- /* set video format */
- cam->vp.palette = vm->format;
- switch(vm->format) {
- case VIDEO_PALETTE_GREY:
- cam->vp.depth=8;
- break;
- case VIDEO_PALETTE_RGB555:
- case VIDEO_PALETTE_RGB565:
- case VIDEO_PALETTE_YUV422:
- case VIDEO_PALETTE_YUYV:
- case VIDEO_PALETTE_UYVY:
- cam->vp.depth = 16;
- break;
- case VIDEO_PALETTE_RGB24:
- cam->vp.depth = 24;
- break;
- case VIDEO_PALETTE_RGB32:
- cam->vp.depth = 32;
- break;
- default:
- retval = -EINVAL;
- break;
- }
- if (retval)
- break;
-
- /* set video size */
- video_size = match_videosize(vm->width, vm->height);
- if (video_size < 0) {
- retval = -EINVAL;
- break;
- }
- if (video_size != cam->video_size) {
- cam->video_size = video_size;
-
- /* video size is changing, reset the subcapture area */
- memset(&cam->vc, 0, sizeof(cam->vc));
-
- set_vw_size(cam);
- cam->cmd_queue |= COMMAND_SETFORMAT;
- dispatch_commands(cam);
- }
- /* according to v4l-spec we must start streaming here */
- cam->mmap_kludge = 1;
- retval = capture_frame(cam, vm);
-
- break;
- }
-
- case VIDIOCSYNC:
- {
- int *frame = arg;
-
- //DBG("VIDIOCSYNC: %d\n", *frame);
-
- if (*frame<0 || *frame >= FRAME_NUM) {
- retval = -EINVAL;
- break;
- }
-
- switch (cam->frame[*frame].state) {
- case FRAME_UNUSED:
- case FRAME_READY:
- case FRAME_GRABBING:
- DBG("sync to unused frame %d\n", *frame);
- retval = -EINVAL;
- break;
-
- case FRAME_DONE:
- cam->frame[*frame].state = FRAME_UNUSED;
- //DBG("VIDIOCSYNC: %d synced\n", *frame);
- break;
- }
- if (retval == -EINTR) {
- /* FIXME - xawtv does not handle this nice */
- retval = 0;
- }
- break;
- }
-
- case VIDIOCGCAPTURE:
- {
- struct video_capture *vc = arg;
-
- DBG("VIDIOCGCAPTURE\n");
-
- *vc = cam->vc;
-
- break;
- }
-
- case VIDIOCSCAPTURE:
- {
- struct video_capture *vc = arg;
-
- DBG("VIDIOCSCAPTURE\n");
-
- if (vc->decimation != 0) { /* How should this be used? */
- retval = -EINVAL;
- break;
- }
- if (vc->flags != 0) { /* Even/odd grab not supported */
- retval = -EINVAL;
- break;
- }
-
- /* Clip to the resolution we can set for the ROI
- (every 8 columns and 4 rows) */
- vc->x = vc->x & ~(__u32)7;
- vc->y = vc->y & ~(__u32)3;
- vc->width = vc->width & ~(__u32)7;
- vc->height = vc->height & ~(__u32)3;
-
- if(vc->width == 0 || vc->height == 0 ||
- vc->x + vc->width > cam->vw.width ||
- vc->y + vc->height > cam->vw.height) {
- retval = -EINVAL;
- break;
- }
-
- DBG("%d,%d/%dx%d\n", vc->x,vc->y,vc->width, vc->height);
-
- mutex_lock(&cam->param_lock);
-
- cam->vc.x = vc->x;
- cam->vc.y = vc->y;
- cam->vc.width = vc->width;
- cam->vc.height = vc->height;
-
- set_vw_size(cam);
- cam->cmd_queue |= COMMAND_SETFORMAT;
-
- mutex_unlock(&cam->param_lock);
-
- /* setformat ignored by camera during streaming,
- * so stop/dispatch/start */
- dispatch_commands(cam);
- break;
- }
-
- case VIDIOCGUNIT:
- {
- struct video_unit *vu = arg;
-
- DBG("VIDIOCGUNIT\n");
-
- vu->video = cam->vdev.minor;
- vu->vbi = VIDEO_NO_UNIT;
- vu->radio = VIDEO_NO_UNIT;
- vu->audio = VIDEO_NO_UNIT;
- vu->teletext = VIDEO_NO_UNIT;
-
- break;
- }
-
-
- /* pointless to implement overlay with this camera */
- case VIDIOCCAPTURE:
- case VIDIOCGFBUF:
- case VIDIOCSFBUF:
- case VIDIOCKEY:
- /* tuner interface - we have none */
- case VIDIOCGTUNER:
- case VIDIOCSTUNER:
- case VIDIOCGFREQ:
- case VIDIOCSFREQ:
- /* audio interface - we have none */
- case VIDIOCGAUDIO:
- case VIDIOCSAUDIO:
- retval = -EINVAL;
- break;
- default:
- retval = -ENOIOCTLCMD;
- break;
- }
-
- mutex_unlock(&cam->busy_lock);
- return retval;
-}
-
-static long cpia_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return video_usercopy(file, cmd, arg, cpia_do_ioctl);
-}
-
-
-/* FIXME */
-static int cpia_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct video_device *dev = file->private_data;
- unsigned long start = vma->vm_start;
- unsigned long size = vma->vm_end - vma->vm_start;
- unsigned long page, pos;
- struct cam_data *cam = video_get_drvdata(dev);
- int retval;
-
- if (!cam || !cam->ops)
- return -ENODEV;
-
- DBG("cpia_mmap: %ld\n", size);
-
- if (size > FRAME_NUM*CPIA_MAX_FRAME_SIZE)
- return -EINVAL;
-
- /* make this _really_ smp-safe */
- if (mutex_lock_interruptible(&cam->busy_lock))
- return -EINTR;
-
- if (!cam->frame_buf) { /* we do lazy allocation */
- if ((retval = allocate_frame_buf(cam))) {
- mutex_unlock(&cam->busy_lock);
- return retval;
- }
- }
-
- pos = (unsigned long)(cam->frame_buf);
- while (size > 0) {
- page = vmalloc_to_pfn((void *)pos);
- if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
- mutex_unlock(&cam->busy_lock);
- return -EAGAIN;
- }
- start += PAGE_SIZE;
- pos += PAGE_SIZE;
- if (size > PAGE_SIZE)
- size -= PAGE_SIZE;
- else
- size = 0;
- }
-
- DBG("cpia_mmap: %ld\n", size);
- mutex_unlock(&cam->busy_lock);
-
- return 0;
-}
-
-static const struct v4l2_file_operations cpia_fops = {
- .owner = THIS_MODULE,
- .open = cpia_open,
- .release = cpia_close,
- .read = cpia_read,
- .mmap = cpia_mmap,
- .ioctl = cpia_ioctl,
-};
-
-static struct video_device cpia_template = {
- .name = "CPiA Camera",
- .fops = &cpia_fops,
- .release = video_device_release_empty,
-};
-
-/* initialise cam_data structure */
-static void reset_camera_struct(struct cam_data *cam)
-{
- /* The following parameter values are the defaults from
- * "Software Developer's Guide for CPiA Cameras". Any changes
- * to the defaults are noted in comments. */
- cam->params.colourParams.brightness = 50;
- cam->params.colourParams.contrast = 48;
- cam->params.colourParams.saturation = 50;
- cam->params.exposure.gainMode = 4;
- cam->params.exposure.expMode = 2; /* AEC */
- cam->params.exposure.compMode = 1;
- cam->params.exposure.centreWeight = 1;
- cam->params.exposure.gain = 0;
- cam->params.exposure.fineExp = 0;
- cam->params.exposure.coarseExpLo = 185;
- cam->params.exposure.coarseExpHi = 0;
- cam->params.exposure.redComp = COMP_RED;
- cam->params.exposure.green1Comp = COMP_GREEN1;
- cam->params.exposure.green2Comp = COMP_GREEN2;
- cam->params.exposure.blueComp = COMP_BLUE;
- cam->params.colourBalance.balanceMode = 2; /* ACB */
- cam->params.colourBalance.redGain = 32;
- cam->params.colourBalance.greenGain = 6;
- cam->params.colourBalance.blueGain = 92;
- cam->params.apcor.gain1 = 0x18;
- cam->params.apcor.gain2 = 0x16;
- cam->params.apcor.gain4 = 0x24;
- cam->params.apcor.gain8 = 0x34;
- cam->params.flickerControl.flickerMode = 0;
- cam->params.flickerControl.disabled = 1;
-
- cam->params.flickerControl.coarseJump =
- flicker_jumps[cam->mainsFreq]
- [cam->params.sensorFps.baserate]
- [cam->params.sensorFps.divisor];
- cam->params.flickerControl.allowableOverExposure =
- -find_over_exposure(cam->params.colourParams.brightness);
- cam->params.vlOffset.gain1 = 20;
- cam->params.vlOffset.gain2 = 24;
- cam->params.vlOffset.gain4 = 26;
- cam->params.vlOffset.gain8 = 26;
- cam->params.compressionParams.hysteresis = 3;
- cam->params.compressionParams.threshMax = 11;
- cam->params.compressionParams.smallStep = 1;
- cam->params.compressionParams.largeStep = 3;
- cam->params.compressionParams.decimationHysteresis = 2;
- cam->params.compressionParams.frDiffStepThresh = 5;
- cam->params.compressionParams.qDiffStepThresh = 3;
- cam->params.compressionParams.decimationThreshMod = 2;
- /* End of default values from Software Developer's Guide */
-
- cam->transfer_rate = 0;
- cam->exposure_status = EXPOSURE_NORMAL;
-
- /* Set Sensor FPS to 15fps. This seems better than 30fps
- * for indoor lighting. */
- cam->params.sensorFps.divisor = 1;
- cam->params.sensorFps.baserate = 1;
-
- cam->params.yuvThreshold.yThreshold = 6; /* From windows driver */
- cam->params.yuvThreshold.uvThreshold = 6; /* From windows driver */
-
- cam->params.format.subSample = SUBSAMPLE_422;
- cam->params.format.yuvOrder = YUVORDER_YUYV;
-
- cam->params.compression.mode = CPIA_COMPRESSION_AUTO;
- cam->params.compressionTarget.frTargeting =
- CPIA_COMPRESSION_TARGET_QUALITY;
- cam->params.compressionTarget.targetFR = 15; /* From windows driver */
- cam->params.compressionTarget.targetQ = 5; /* From windows driver */
-
- cam->params.qx3.qx3_detected = 0;
- cam->params.qx3.toplight = 0;
- cam->params.qx3.bottomlight = 0;
- cam->params.qx3.button = 0;
- cam->params.qx3.cradled = 0;
-
- cam->video_size = VIDEOSIZE_CIF;
-
- cam->vp.colour = 32768; /* 50% */
- cam->vp.hue = 32768; /* 50% */
- cam->vp.brightness = 32768; /* 50% */
- cam->vp.contrast = 32768; /* 50% */
- cam->vp.whiteness = 0; /* not used -> grayscale only */
- cam->vp.depth = 24; /* to be set by user */
- cam->vp.palette = VIDEO_PALETTE_RGB24; /* to be set by user */
-
- cam->vc.x = 0;
- cam->vc.y = 0;
- cam->vc.width = 0;
- cam->vc.height = 0;
-
- cam->vw.x = 0;
- cam->vw.y = 0;
- set_vw_size(cam);
- cam->vw.chromakey = 0;
- cam->vw.flags = 0;
- cam->vw.clipcount = 0;
- cam->vw.clips = NULL;
-
- cam->cmd_queue = COMMAND_NONE;
- cam->first_frame = 1;
-
- return;
-}
-
-/* initialize cam_data structure */
-static void init_camera_struct(struct cam_data *cam,
- struct cpia_camera_ops *ops )
-{
- int i;
-
- /* Default everything to 0 */
- memset(cam, 0, sizeof(struct cam_data));
-
- cam->ops = ops;
- mutex_init(&cam->param_lock);
- mutex_init(&cam->busy_lock);
-
- reset_camera_struct(cam);
-
- cam->proc_entry = NULL;
-
- memcpy(&cam->vdev, &cpia_template, sizeof(cpia_template));
- video_set_drvdata(&cam->vdev, cam);
-
- cam->curframe = 0;
- for (i = 0; i < FRAME_NUM; i++) {
- cam->frame[i].width = 0;
- cam->frame[i].height = 0;
- cam->frame[i].state = FRAME_UNUSED;
- cam->frame[i].data = NULL;
- }
- cam->decompressed_frame.width = 0;
- cam->decompressed_frame.height = 0;
- cam->decompressed_frame.state = FRAME_UNUSED;
- cam->decompressed_frame.data = NULL;
-}
-
-struct cam_data *cpia_register_camera(struct cpia_camera_ops *ops, void *lowlevel)
-{
- struct cam_data *camera;
-
- if ((camera = kmalloc(sizeof(struct cam_data), GFP_KERNEL)) == NULL)
- return NULL;
-
-
- init_camera_struct( camera, ops );
- camera->lowlevel_data = lowlevel;
-
- /* register v4l device */
- if (video_register_device(&camera->vdev, VFL_TYPE_GRABBER, video_nr) < 0) {
- kfree(camera);
- printk(KERN_DEBUG "video_register_device failed\n");
- return NULL;
- }
-
- /* get version information from camera: open/reset/close */
-
- /* open cpia */
- if (camera->ops->open(camera->lowlevel_data))
- return camera;
-
- /* reset the camera */
- if (reset_camera(camera) != 0) {
- camera->ops->close(camera->lowlevel_data);
- return camera;
- }
-
- /* close cpia */
- camera->ops->close(camera->lowlevel_data);
-
-#ifdef CONFIG_PROC_FS
- create_proc_cpia_cam(camera);
-#endif
-
- printk(KERN_INFO " CPiA Version: %d.%02d (%d.%d)\n",
- camera->params.version.firmwareVersion,
- camera->params.version.firmwareRevision,
- camera->params.version.vcVersion,
- camera->params.version.vcRevision);
- printk(KERN_INFO " CPiA PnP-ID: %04x:%04x:%04x\n",
- camera->params.pnpID.vendor,
- camera->params.pnpID.product,
- camera->params.pnpID.deviceRevision);
- printk(KERN_INFO " VP-Version: %d.%d %04x\n",
- camera->params.vpVersion.vpVersion,
- camera->params.vpVersion.vpRevision,
- camera->params.vpVersion.cameraHeadID);
-
- return camera;
-}
-
-void cpia_unregister_camera(struct cam_data *cam)
-{
- DBG("unregistering video\n");
- video_unregister_device(&cam->vdev);
- if (cam->open_count) {
- put_cam(cam->ops);
- DBG("camera open -- setting ops to NULL\n");
- cam->ops = NULL;
- }
-
-#ifdef CONFIG_PROC_FS
- DBG("destroying /proc/cpia/%s\n", video_device_node_name(&cam->vdev));
- destroy_proc_cpia_cam(cam);
-#endif
- if (!cam->open_count) {
- DBG("freeing camera\n");
- kfree(cam);
- }
-}
-
-static int __init cpia_init(void)
-{
- printk(KERN_INFO "%s v%d.%d.%d\n", ABOUT,
- CPIA_MAJ_VER, CPIA_MIN_VER, CPIA_PATCH_VER);
-
- printk(KERN_WARNING "Since in-kernel colorspace conversion is not "
- "allowed, it is disabled by default now. Users should fix the "
- "applications in case they don't work without conversion "
- "reenabled by setting the 'colorspace_conv' module "
- "parameter to 1\n");
-
-#ifdef CONFIG_PROC_FS
- proc_cpia_create();
-#endif
-
- return 0;
-}
-
-static void __exit cpia_exit(void)
-{
-#ifdef CONFIG_PROC_FS
- proc_cpia_destroy();
-#endif
-}
-
-module_init(cpia_init);
-module_exit(cpia_exit);
-
-/* Exported symbols for modules. */
-
-EXPORT_SYMBOL(cpia_register_camera);
-EXPORT_SYMBOL(cpia_unregister_camera);
projects / mv-sheeva.git / blobdiff