initial commit - cloned from NC353

.gitignore

+html/*
+attic/*
+/.project
+/.cproject
+/.pydevproject
+/.externalToolBuilders
+/.settings
+.directory
+generated*
+sysroots
+bitbake-logs
+/temp/

README.md

+# elphel-apps-autoexposure

VERSION

+1.0 

run_bitbake.sh

+#!/bin/bash
+args="$@"
+while (( "$#" )); do
+  shift
+done
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+echo "Launching bitbake $args"
+cd $DIR/../../poky
+. ./oe-init-build-env
+bitbake $args  | sed -u 's@| @@'
+exit 0

src/Makefile

+AXIS_USABLE_LIBS = UCLIBC GLIBC
+AXIS_AUTO_DEPEND = yes
+include $(AXIS_TOP_DIR)/tools/build/Rules.axis
+#include ".depend"
+INSTDIR    = $(prefix)/usr/local/sbin/
+CONFDIR   = $(prefix)/etc/
+INSTMODE   = 0755
+INSTOTHER  = 0644
+INSTOWNER  = root
+INSTGROUP  = root
+
+INCDIR     = $(prefix)/include
+
+PROGS      = autoexposure temperature
+
+SRCS = autoexposure.c globalsinit.c aexp_utils.c aexp_corr.c white_balance.c hdr_control.c temperature.c
+
+OBJS = autoexposure.o globalsinit.o aexp_utils.o aexp_corr.o white_balance.o hdr_control.o temperature.o
+
+CFLAGS   += -Wall -I$(INCDIR) -I$(AXIS_KERNEL_DIR)/include 
+#CFLAGS   += -Wall -I$(INCDIR) -I$(AXIS_KERNEL_DIR)/include -save-temps -dA -dP
+
+all: $(PROGS)
+
+autoexposure: autoexposure.o globalsinit.o aexp_utils.o aexp_corr.o white_balance.o hdr_control.o
+	$(CC) $(LDFLAGS) $^ $(LDLIBS) -o $@
+	cris-strip -s $@
+temperature: temperature.o
+	$(CC) $(LDFLAGS) $^ $(LDLIBS) -o $@
+	cris-strip -s $@
+install: $(PROGS)
+	$(INSTALL) -d $(INSTDIR)
+	$(INSTALL) -m $(INSTMODE) -o $(INSTOWNER) -g $(INSTGROUP) $(PROGS) $(INSTDIR)
+clean:
+	rm -rf $(PROGS) *.o core
+configsubs:

src/aexp_corr.h

+/*!***************************************************************************
+*! FILE NAME  : aexp_corr.h
+*! DESCRIPTION: Autoexposure part of the autoexposure/white balance/hdr daemon
+*! Copyright (C) 2008 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: aexp_corr.h,v $
+*!  Revision 1.1.1.1  2008/11/27 20:04:01  elphel
+*!
+*!
+*!  Revision 1.2  2008/11/18 19:30:16  elphel
+*!  Added initialization of the "next" frame - otherwise it wait _very_ long if the camera frame number is reset
+*!
+*!  Revision 1.1  2008/11/15 23:08:24  elphel
+*!  8.0.alpha17 - split autoexposure source file
+*!
+*!
+*/ 
+
+#ifndef __H_AUTOEXPOSURE_AEXP_CORR__
+#define __H_AUTOEXPOSURE_AEXP_CORR__
+void initAexpCorr(void);
+int aexpCorr(int color, int frame, int target_frame);
+
+#endif
+

src/aexp_utils.h

+/*!***************************************************************************
+*! FILE NAME  : aexp_utils.h
+*! DESCRIPTION: Daemon to adjust camera exposure and white balance
+*! Copyright (C) 2008 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: aexp_utils.h,v $
+*!  Revision 1.2  2008/12/01 02:32:48  elphel
+*!  Updated white balance to use new gains
+*!
+*!  Revision 1.1.1.1  2008/11/27 20:04:01  elphel
+*!
+*!
+*!  Revision 1.1  2008/11/15 23:08:24  elphel
+*!  8.0.alpha17 - split autoexposure source file
+*!
+*!
+*/ 
+#ifndef __H_AUTOEXPOSURE_AEXP_UTILS__
+#define __H_AUTOEXPOSURE_AEXP_UTILS__
+unsigned long get_imageParamsThat     (int indx, unsigned long frame);
+int           get_imageParamsThatValid(int indx, unsigned long frame);
+int           setGammaIndex(int color);
+long getPercentile(unsigned long frame,int color, unsigned long fraction,int request_colors);
+int recalibrateDim(void);
+unsigned long gammaDirect (unsigned long x);
+unsigned long gammaReverse (unsigned long x);
+int waitRequstPrevHist(unsigned long next_frame);
+int poorLog(int x);
+int poorExp(int x);
+
+#define get_imageParamsThis(x) ( framePars[this_frame & PARS_FRAMES_MASK].pars[x])
+
+
+#endif

src/autoexposure.h

+/*!***************************************************************************
+*! FILE NAME  : autoexposure.h
+*! DESCRIPTION: 
+*! Copyright (C) 2008 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: autoexposure.h,v $
+*!  Revision 1.2  2009/02/25 17:47:51  spectr_rain
+*!  removed deprecated dependency
+*!
+*!  Revision 1.1.1.1  2008/11/27 20:04:01  elphel
+*!
+*!
+*!  Revision 1.1  2008/11/15 23:08:24  elphel
+*!  8.0.alpha17 - split autoexposure source file
+*!
+*/ 
+#ifndef __H_AUTOEXPOSURE__
+#define __H_AUTOEXPOSURE__
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+//#include <ctype.h>
+//#include <getopt.h>
+#include <time.h>
+#include <string.h>
+#include <syslog.h>
+
+#include <netinet/in.h>
+#include <sys/mman.h>      /* mmap */
+#include <sys/ioctl.h>
+
+#include <asm/elphel/c313a.h>
+#include <asm/elphel/exifa.h>
+#include <asm/byteorder.h>
+
+#include "aexp_utils.h"
+#include "aexp_corr.h"
+#include "white_balance.h"
+#include "hdr_control.h"
+#include "globalsinit.h"
+//#if ELPHEL_DEBUG
+ #define THIS_DEBUG 1
+//#else
+// #define THIS_DEBUG 0
+//#endif
+//#define ELP_FERR(x) printf(stderr,"%s:%d:%s: ERROR ",__FILE__,__LINE__,__FUNCTION__); x
+#if THIS_DEBUG
+  #define MDF0(x) { if (autoexposure_debug & (1 << 0)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF1(x) { if (autoexposure_debug & (1 << 1)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF2(x) { if (autoexposure_debug & (1 << 2)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+//  #define MDF2(x)
+  #define MDF3(x) { if (autoexposure_debug & (1 << 3)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+//  #define MDF3(x)
+  #define MDF4(x) { if (autoexposure_debug & (1 << 4)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF5(x) { if (autoexposure_debug & (1 << 5)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF6(x) { if (autoexposure_debug & (1 << 6)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF7(x) { if (autoexposure_debug & (1 << 7)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+#else
+  #define MDF0(x)
+  #define MDF1(x)
+  #define MDF2(x)
+  #define MDF3(x)
+  #define MDF4(x)
+  #define MDF5(x)
+  #define MDF6(x)
+  #define MDF7(x)
+#endif
+
+#define START_SKIP_FRAMES 8 // don't try autoexposure until this number of frames after startup
+#define get_imageParamsThis(x) ( framePars[this_frame & PARS_FRAMES_MASK].pars[x])
+#define min(x,y) ((x<y)?x:y)
+
+//#define get_imageParamsThis(x) ( framePars[this_frame & PARS_FRAMES_MASK].pars[x])
+#define RECALIBRATE_AHEAD           3 // Darken frame 3 ahead of current to measure histograms
+#define EXPOS_AHEAD                 3 // minimal frames ahead of the current to set VEXPOS
+#define DEFAULT_AE_PERIOD_CHANGE    4
+#define DEFAULT_AE_PERIOD_NOCHANGE  1
+#define DEFAULT_WB_PERIOD_CHANGE   16
+#define DEFAULT_WB_PERIOD_NOCHANGE  4
+#define RECALIBRATE_AFTER           2 // number of dim frames
+#define DEFAULT_BLACK_CALIB     0xa00
+#define HDR_PATTERN1_8          0xaa
+#define HDR_PATTERN2_8          0x66
+#define HDR_PATTERN1  (HDR_PATTERN1_8 | (HDR_PATTERN1_8 << 8) | (HDR_PATTERN1_8 << 16) | (HDR_PATTERN1_8 << 24))
+#define HDR_PATTERN2  (HDR_PATTERN2_8 | (HDR_PATTERN2_8 << 8) | (HDR_PATTERN2_8 << 16) | (HDR_PATTERN2_8 << 24))
+#define DEFAULT_WB_WHITELEV   0xfae1 // 98%
+#define DEFAULT_WB_WHITEFRAC  0x028f // 1%
+#define PERCENTILE_SHIFT 16
+#define PERCENTILE_1 (1 << PERCENTILE_SHIFT)
+
+#endif

src/globalsinit.c

+/*!***************************************************************************
+*! FILE NAME  : globalsinit.c
+*! DESCRIPTION: Opens files, mmap-s data structures, initializes variables
+*!              For the autoexposure daemon
+*! Copyright (C) 2008 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: globalsinit.c,v $
+*!  Revision 1.1.1.1  2008/11/27 20:04:01  elphel
+*!
+*!
+*!  Revision 1.2  2008/11/18 19:30:16  elphel
+*!  Added initialization of the "next" frame - otherwise it wait _very_ long if the camera frame number is reset
+*!
+*!  Revision 1.1  2008/11/15 23:08:24  elphel
+*!  8.0.alpha17 - split autoexposure source file
+*!
+*!
+*/ 
+
+#include "autoexposure.h"
+
+
+
+
+  int fd_fparmsall, fd_histogram_cache, fd_gamma_cache;
+  struct framepars_all_t    *frameParsAll;
+  struct framepars_t        *framePars;
+  unsigned long             *globalPars;
+  struct framepars_past_t   *pastPars;
+  struct histogram_stuct_t  * histogram_cache; /// array of histograms
+/// gamma cache is needed to re-linearize the data
+  struct gamma_stuct_t  * gamma_cache; /// array of gamma structures
+  int hist_index; /// to preserve it between calls
+  int gamma_index; /// to preserve it between calls
+  int aex_recover_cntr;
+  unsigned long this_frame;
+
+  int      autoexposure_debug;
+
+
+/**
+ * @brief open required files, mmap theurt data structures
+ * uses global variables for files and mmap-ed data so they are accessible everywhere
+ * @return 0 - OK, <0 - problems opening/mma-ing
+ */
+int initFilesMmap(void) {
+  const char framepars_driver_name[]="/dev/frameparsall";
+  const char histogram_driver_name[]="/dev/histogram_cache";
+  const char gamma_driver_name[]=    "/dev/gamma_cache";
+///Frame parameters file open/mmap (read/write)
+  fd_fparmsall= open(framepars_driver_name, O_RDWR);
+  if (fd_fparmsall <0) {
+     ELP_FERR(fprintf(stderr, "Open failed: (%s)\r\n", framepars_driver_name));
+     return -1;
+  }
+  frameParsAll = (struct framepars_all_t *) mmap(0, sizeof (struct framepars_all_t) * HISTOGRAM_CACHE_NUMBER , PROT_READ | PROT_WRITE, MAP_SHARED, fd_fparmsall, 0);
+  if((int) frameParsAll == -1) {
+     ELP_FERR(fprintf(stderr, "problems with mmap: %s\n", framepars_driver_name));
+     close (fd_fparmsall);
+     return -1;
+  }
+  framePars =   frameParsAll->framePars;
+  pastPars =    frameParsAll->pastPars;
+  globalPars=   frameParsAll->globalPars;
+
+///Histogrames file open/mmap (readonly)
+  fd_histogram_cache= open(histogram_driver_name, O_RDONLY);
+  if (fd_histogram_cache <0) {
+     ELP_FERR(fprintf(stderr, "Open failed: (%s)\r\n", histogram_driver_name));
+     close (fd_fparmsall);
+     return -1;
+  }
+  histogram_cache = (struct histogram_stuct_t *) mmap(0, sizeof (struct histogram_stuct_t) * HISTOGRAM_CACHE_NUMBER , PROT_READ, MAP_SHARED, fd_histogram_cache, 0);
+  if((int) histogram_cache == -1) {
+     ELP_FERR(fprintf(stderr, "problems with mmap: %s\n", histogram_driver_name));
+     close (fd_fparmsall);
+     close (fd_histogram_cache);
+     return -1;
+  }
+
+///Gamma tables file open/mmap (readonly)
+  fd_gamma_cache= open(gamma_driver_name, O_RDWR);
+  if (fd_gamma_cache <0) {
+     ELP_FERR(fprintf(stderr, "Open failed: (%s)\r\n", gamma_driver_name));
+     close (fd_fparmsall);
+     close (fd_histogram_cache);
+     return -1;
+  }
+  gamma_cache = (struct gamma_stuct_t *) mmap(0, sizeof (struct gamma_stuct_t) * GAMMA_CACHE_NUMBER , PROT_READ, MAP_SHARED, fd_gamma_cache, 0);
+  if((int) gamma_cache == -1) {
+     ELP_FERR(fprintf(stderr, "problems with mmap: %s\n", gamma_driver_name));
+     close (fd_fparmsall);
+     close (fd_histogram_cache);
+     close (fd_gamma_cache);
+     return -1;
+  }
+  return 0; /// All initialized
+}
+/**
+ * @brief give a chance for other applications to initialize P_* parameters related to autoexposure functionality
+ * so the daemon itself can be started early
+ * @return just 0 for now
+ */
+int initParams(int daemon_bit) {
+    aex_recover_cntr=0;
+    lseek(fd_histogram_cache, LSEEK_DAEMON_HIST_Y+daemon_bit, SEEK_END);   /// wait for autoexposure daemon to be enabled
+    GLOBALPARS(G_AE_INTEGERR)=0; /// reset running error
+    GLOBALPARS(G_WB_INTEGERR)=0; /// reset running error
+    this_frame=GLOBALPARS(G_THIS_FRAME);  /// set global frame number
+    if (GLOBALPARS(G_HIST_DIM_01)==0) {
+      GLOBALPARS(G_HIST_DIM_01)=DEFAULT_BLACK_CALIB | (DEFAULT_BLACK_CALIB <<16);
+      GLOBALPARS(G_HIST_DIM_23)=DEFAULT_BLACK_CALIB | (DEFAULT_BLACK_CALIB <<16);
+      return 1 ; /// used default, no real calibration
+    }
+//#define P_AUTOEXP_EXP_MAX 81 //unsigned long exp_max;		/* 100 usec == 1 etc... */
+    initAexpCorr();
+    initWhiteBalanceCorr();
+    return 0;
+}
+
+

src/globalsinit.h

+/*!***************************************************************************
+*! FILE NAME  : globalsinit.h
+*! DESCRIPTION: Daemon to adjust camera exposure and white balance
+*! Copyright (C) 2008 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: globalsinit.h,v $
+*!  Revision 1.1.1.1  2008/11/27 20:04:01  elphel
+*!
+*!
+*!  Revision 1.1  2008/11/15 23:08:24  elphel
+*!  8.0.alpha17 - split autoexposure source file
+*!
+*!
+*/ 
+#ifndef __H_AUTOEXPOSURE_GLOBALSINIT__
+#define __H_AUTOEXPOSURE_GLOBALSINIT__
+
+/// Global variables
+  extern int                        fd_fparmsall;
+  extern int                        fd_histogram_cache;
+  extern int                        fd_gamma_cache;
+  extern struct framepars_all_t   * frameParsAll;
+  extern struct framepars_t       * framePars;
+  extern unsigned long            * globalPars;
+  extern struct framepars_past_t  * pastPars;
+  extern struct histogram_stuct_t * histogram_cache; /// array of histograms
+/// gamma cache is needed to re-linearize the data
+  extern struct gamma_stuct_t     * gamma_cache; /// array of gamma structures
+  extern int                        hist_index;        /// to preserve it between calls
+  extern int                        gamma_index; /// to preserve it between calls
+  extern int                        aex_recover_cntr;
+  extern unsigned long              this_frame;
+  extern int                        autoexposure_debug;
+
+int initFilesMmap(void);
+int initParams(int daemon_bit);
+
+
+#endif

src/hdr_control.c

+/*!***************************************************************************
+*! FILE NAME  : hdr_control.c
+*! DESCRIPTION: HDR part of the autoexposure/white balance/hdr daemon
+*! Copyright (C) 2008 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: hdr_control.c,v $
+*!  Revision 1.4  2011/05/20 21:42:04  elphel
+*!  different debug levels
+*!
+*!  Revision 1.3  2010/12/16 16:52:15  elphel
+*!  working on HDR autoexposure
+*!
+*!  Revision 1.2  2010/12/15 16:46:44  elphel
+*!  autoexposure correction: hdr synchronization
+*!
+*!  Revision 1.1.1.1  2008/11/27 20:04:01  elphel
+*!
+*!
+*!  Revision 1.1  2008/11/15 23:08:24  elphel
+*!  8.0.alpha17 - split autoexposure source file
+*!
+*!
+*/ 
+
+#include "autoexposure.h"
+//#define P_HDR_DUR        168 // 0 - HDR 0ff, >1 - duration of same exposure (currently 1 or 2 - for free running)
+//#define P_HDR_VEXPOS     169 // if less than 0x10000 - number of lines of exposure, >=10000 - relative to "normal" exposure
+int exposureHDR (int frame, int target_frame) {
+   unsigned long write_data[4]; 
+   int target_frame8=target_frame & PARS_FRAMES_MASK;
+   int HDR_mode;
+   int vexpos, vexpos_HDR;
+   int rslt;
+   if (!((HDR_mode=framePars[target_frame8].pars[P_HDR_DUR])))  return 0; /// HDR mode is disabled
+   MDF5(fprintf(stderr,"frame=0x%x target_frame=0x%x GLOBALPARS(G_THIS_FRAME)=0x%x\n",(int) frame, (int) target_frame, (int)GLOBALPARS(G_THIS_FRAME)));
+
+   if ((HDR_mode<1) || (HDR_mode>2)) {
+     ELP_FERR(fprintf(stderr, "Wrong HDR mode %d (only 1 or 2 are supported)\n",HDR_mode));
+     return -1;
+   }
+ /// maybe expos (not vexpos!) was just written by autoexposure, not yet recalculated from expos to vexpos
+
+   switch (HDR_mode) {
+     case 1:
+       lseek(fd_fparmsall, frame+1 +LSEEK_FRAME_WAIT_ABS, SEEK_END);
+       break;
+     case 2:
+       lseek(fd_fparmsall, frame+2 +LSEEK_FRAME_WAIT_ABS, SEEK_END);
+       break;
+   }
+
+   vexpos=    framePars[target_frame8].pars[P_VEXPOS];
+   vexpos_HDR=framePars[target_frame8].pars[P_HDR_VEXPOS];
+   if (vexpos_HDR>=0x10000) vexpos_HDR= (((long long) vexpos_HDR) * vexpos) >> 16;
+   write_data[0]= FRAMEPARS_SETFRAME;
+   write_data[2]= P_VEXPOS; // | FRAMEPAIR_FORCE_NEWPROC ?
+/// program next two frames after target_frame
+   MDF1(fprintf(stderr,">>>>>HDR_mode=%d, write: %08lx  %08lx %08lx %08lx\n",HDR_mode,write_data[0],write_data[1],write_data[2],write_data[3]));
+
+   switch (HDR_mode) {
+     case 1:
+       write_data[1]= target_frame+1;
+       write_data[3]= vexpos_HDR;
+       rslt=write(fd_fparmsall, write_data, sizeof(write_data));
+      MDF1(fprintf(stderr,"write: %08lx  %08lx %08lx %08lx -> %d\n",write_data[0],write_data[1],write_data[2],write_data[3],rslt));
+       if (rslt < sizeof(write_data)) return -errno;
+       write_data[1]= target_frame+2;
+       write_data[3]= vexpos;
+       rslt=write(fd_fparmsall, write_data, sizeof(write_data));
+       if (rslt < sizeof(write_data)) return -errno;
+      MDF5(fprintf(stderr,"write: %08lx  %08lx %08lx %08lx -> %d\n",write_data[0],write_data[1],write_data[2],write_data[3],rslt));
+     break;
+     case 2:
+       write_data[1]= target_frame+2;
+       write_data[3]= vexpos_HDR;
+       rslt=write(fd_fparmsall, write_data, sizeof(write_data));
+       if (rslt < sizeof(write_data)) return -errno;
+      MDF1(fprintf(stderr,"write: %08lx  %08lx %08lx %08lx -> %d\n",write_data[0],write_data[1],write_data[2],write_data[3],rslt));
+     break;
+   }
+/// skip 2 frames from 'frame' (use absolute to add tolerance against being too late)
+   lseek(fd_fparmsall, frame + 2+LSEEK_FRAME_WAIT_ABS, SEEK_END);
+   switch (HDR_mode) {
+     case 1:
+       write_data[1]= target_frame+3;
+       write_data[3]= vexpos_HDR;
+       rslt=write(fd_fparmsall, write_data, sizeof(write_data));
+       if (rslt < sizeof(write_data)) return -errno;
+      MDF1(fprintf(stderr,"write: %08lx  %08lx %08lx %08lx -> %d\n",write_data[0],write_data[1],write_data[2],write_data[3],rslt));
+       write_data[1]= target_frame+4;
+       write_data[3]= vexpos;
+       rslt=write(fd_fparmsall, write_data, sizeof(write_data));
+       if (rslt < sizeof(write_data)) return -errno;
+      MDF1(fprintf(stderr,"write: %08lx  %08lx %08lx %08lx -> %d\n",write_data[0],write_data[1],write_data[2],write_data[3],rslt));
+     break;
+     case 2:
+       write_data[1]= target_frame+4;
+       write_data[3]= vexpos;
+       rslt=write(fd_fparmsall, write_data, sizeof(write_data));
+       if (rslt < sizeof(write_data)) return -errno;
+      MDF1(fprintf(stderr,"write: %08lx  %08lx %08lx %08lx -> %d\n",write_data[0],write_data[1],write_data[2],write_data[3],rslt));
+     break;
+   }
+   return 1;
+}
+
+
+
+/**
+ * @brief in HDR mode - wait until we get a histogram from a normal frame (only needed to re-sync after long delays
+ * uses global variables for files and mmap-ed data so they are accessible everywhere
+ * @return 0 - OK, <0 - problems opening/mma-ing
+ * BUG: Does not seem to work at all !
+ */
+int skipHDR(int mode, unsigned long frame) {
+  int patt;
+  int skip;
+  MDF5(fprintf(stderr,"mode=%d frame=0x%x GLOBALPARS(G_THIS_FRAME)=0x%x\n",(int) mode, (int) frame, (int)GLOBALPARS(G_THIS_FRAME)));
+
+  switch (mode) {
+   case 0: return 0;
+   case 1: patt=HDR_PATTERN1;
+           break;
+   case 2: patt=HDR_PATTERN2;
+           break;
+   default: return -1;
+  }
+  patt >>= (frame & PARS_FRAMES_MASK);
+  if (patt & 1) return 0;
+  skip=0;
+  while (patt && !(patt & 1)) { 
+    patt >>= 1;
+    skip++;
+  }
+  lseek(fd_histogram_cache, LSEEK_HIST_WAIT_Y,     SEEK_END); /// wait for Y only
+  lseek(fd_histogram_cache, LSEEK_HIST_NEEDED + 0, SEEK_END); /// nothing needed, just waiting for some frames to be skipped
+//  lseek(fd_histogram_cache, skip,                  SEEK_CUR); /// just wait until the Y histogram will available for non-HDR frame
+//  lseek(fd_histogram_cache, skip-1,                SEEK_CUR); /// just wait until the Y histogram will available for non-HDR frame
+  lseek(fd_histogram_cache, skip,                SEEK_CUR); /// just wait until the Y histogram will available for non-HDR frame
+  MDF5(fprintf(stderr,"mode=%d frame=0x%x skip=%d GLOBALPARS(G_THIS_FRAME)=0x%x\n",(int) mode, (int) frame, (int) skip, (int)GLOBALPARS(G_THIS_FRAME)));
+  return 1;
+}

src/hdr_control.h

+/*!***************************************************************************
+*! FILE NAME  : hdr_control.h
+*! DESCRIPTION: HDR part of the autoexposure/white balance/hdr daemon
+*! Copyright (C) 2008 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: hdr_control.h,v $
+*!  Revision 1.1.1.1  2008/11/27 20:04:01  elphel
+*!
+*!
+*!  Revision 1.1  2008/11/15 23:08:24  elphel
+*!  8.0.alpha17 - split autoexposure source file
+*!
+*!
+*/
+#ifndef __H_AUTOEXPOSURE_HDR_CONTROL__
+#define __H_AUTOEXPOSURE_HDR_CONTROL__
+
+int skipHDR(int mode, unsigned long frame);
+int exposureHDR (int frame, int target_frame);
+
+#endif

src/temperature.h

+/*!***************************************************************************
+*! FILE NAME  : temperature.h
+*! DESCRIPTION: 
+*! Copyright (C) 2012 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: temperature.h,v $
+*!  Revision 1.1  2012/04/08 04:10:36  elphel
+*!  rev. 8.2.2 - added temperature measuring daemon, related parameters for logging SFE and system temperatures
+*!
+*/ 
+#ifndef __H_TEMPERATURE__
+#define __H_TEMPERATURE__
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+//#include <ctype.h>
+//#include <getopt.h>
+#include <time.h>
+#include <string.h>
+#include <syslog.h>
+
+#include <netinet/in.h>
+#include <sys/mman.h>      /* mmap */
+#include <sys/ioctl.h>
+
+#include <asm/elphel/c313a.h>
+//#include <asm/elphel/exifa.h>
+#include <asm/byteorder.h>
+
+//#if ELPHEL_DEBUG
+ #define THIS_DEBUG 1
+//#else
+// #define THIS_DEBUG 0
+//#endif
+//#define ELP_FERR(x) printf(stderr,"%s:%d:%s: ERROR ",__FILE__,__LINE__,__FUNCTION__); x
+#if THIS_DEBUG
+  #define MDF0(x) { if (temperature_debug & (1 << 0)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF1(x) { if (temperature_debug & (1 << 1)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF2(x) { if (temperature_debug & (1 << 2)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+//  #define MDF2(x)
+  #define MDF3(x) { if (temperature_debug & (1 << 3)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+//  #define MDF3(x)
+  #define MDF4(x) { if (temperature_debug & (1 << 4)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF5(x) { if (temperature_debug & (1 << 5)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF6(x) { if (temperature_debug & (1 << 6)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+  #define MDF7(x) { if (temperature_debug & (1 << 7)) {fprintf(stderr,"%s:%d:%s: ",__FILE__,__LINE__,__FUNCTION__);x;} }
+#else
+  #define MDF0(x)
+  #define MDF1(x)
+  #define MDF2(x)
+  #define MDF3(x)
+  #define MDF4(x)
+  #define MDF5(x)
+  #define MDF6(x)
+  #define MDF7(x)
+#endif
+
+#define get_imageParamsThis(x) ( framePars[this_frame & PARS_FRAMES_MASK].pars[x])
+#define min(x,y) ((x<y)?x:y)
+
+
+#endif

src/white_balance.h

+/*!***************************************************************************
+*! FILE NAME  : white_balance.h
+*! DESCRIPTION: White balance part of the autoexposure/white balance/hdr daemon
+*! Copyright (C) 2008 Elphel, Inc.
+*! -----------------------------------------------------------------------------**
+*!  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 3 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, see <http://www.gnu.org/licenses/>.
+*! -----------------------------------------------------------------------------**
+*!
+*!  $Log: white_balance.h,v $
+*!  Revision 1.1.1.1  2008/11/27 20:04:01  elphel
+*!
+*!
+*!  Revision 1.2  2008/11/18 19:30:16  elphel
+*!  Added initialization of the "next" frame - otherwise it wait _very_ long if the camera frame number is reset
+*!
+*!  Revision 1.1  2008/11/15 23:08:24  elphel
+*!  8.0.alpha17 - split autoexposure source file
+*!
+*!
+*/
+
+#ifndef __H_AUTOEXPOSURE_WHITE_BALANCE__
+#define __H_AUTOEXPOSURE_WHITE_BALANCE__
+
+int whiteBalanceCorr(int frame, int target_frame, int ae_rslt);
+void initWhiteBalanceCorr(void);
+
+#endif