intermediate state, not working

src/drivers/elphel/Makefile

@@ -15,7 +15,7 @@ obj-$(CONFIG_ELPHEL393)           += clock10359.o
 #obj-$(CONFIG_ELPHEL393_EXTERNAL)  += fpgajtag.o
 
 obj-$(CONFIG_ELPHEL393)           += framepars.o
-obj-$(CONFIG_ELPHEL393)           += sensor_common.o x393.o
-obj-$(CONFIG_ELPHEL393)           += quantization_tables.o
-obj-$(CONFIG_ELPHEL393)           += circbuf.o jpeghead.o
+#obj-$(CONFIG_ELPHEL393)           += sensor_common.o x393.o
+#obj-$(CONFIG_ELPHEL393)           += quantization_tables.o
+#obj-$(CONFIG_ELPHEL393)           += circbuf.o jpeghead.o
 

src/drivers/elphel/exif393.h

+/*
+ exif353.h
+ */
+#ifndef _EXIF_H
+#define _EXIF_H
+#if 0
+struct exif_time_t {
+  char          tomorrow_date[10]; //!"YYYY:MM:DD"
+  unsigned long tomorrow_sec;      //!seconds from epoch tomorrow at 00:00
+  char          today_date[10];    //!"YYYY:MM:DD"
+  unsigned long today_sec;         //!seconds from epoch today at 00:00
+} exif_time;
+
+struct exif_datetime_t {
+  char          datetime[20];      //!"YYYY:MM:DD HH:MM:SS\0"
+  char          subsec[7];         //!ASCII microseconds (0-padded), ."\0"
+} now_datetime;
+#endif
+
+void exif_invalidate(void);
+int exif_rebuild_chn(int sensor_port, int frames);// reallocate meta buffer to store per-frame meta data (later output as Exif)
+int exif_rebuild(int frames);                     // rebuild for all sensor ports
+
+int exif_enable_chn(int sensor_port, int en);     // enable/disable Exif processing (both W/R)
+int exif_enable(int en);                          // For all sensor ports
+int dir_find_tag (unsigned long tag); //!find location of the tag field in meta page using long tag (Exif tag and tag group)
+
+inline void write_meta_raw_irq(int sensor_port, char * data, int offset, int len); //write data to meta, called from IRQ
+inline int write_meta_irq(int sensor_port, char * data, int * indx,  unsigned long ltag, int len); //write data to meta, called from IRQ(len==0 => use field length)
+inline void putlong_meta_raw_irq(int sensor_port, unsigned long data, int offset); //write data to meta (4 bytes, big endian), called from IRQ
+inline int putlong_meta_irq(int sensor_port, unsigned long data, int * indx,  unsigned long ltag); //write data to meta (4 bytes, big endian), from IRQ
+//void write_meta_raw_irq(char * data, int offset, int len); //write data to meta, called from IRQ
+//int write_meta_irq(char * data, int * indx,  unsigned long ltag, int len); //write data to meta, called from IRQ(len==0 => use field length). Returns index of the written data, -1 if not written
+
+void write_meta_raw(int sensor_port, char * data, int offset, int len); //write data to meta, called from outside IRQ (atomic)
+int write_meta(int sensor_port, char * data, int * indx,  unsigned long ltag, int len); //write data to meta, from outside IRQ (atomic) (len==0 => use field length). Returns index of the written data, -1 if not written
+void putlong_meta_raw(int sensor_port, unsigned long data, int offset); //write data to meta (4 bytes, big endian), called from outside IRQ (atomic)
+int putlong_meta(int sensor_port, unsigned long data, int * indx,  unsigned long ltag); //write data to meta (4 bytes, big endian), from outside IRQ (atomic). Returns index of the written data, -1 if not written
+
+char * encode_time(unsigned long sec, unsigned long usec);
+int store_meta(int sensor_port); //called from IRQ service - put current metadata to meta_buffer, return page index
+
+
+#endif

src/drivers/elphel/framepars.h

@@ -9,7 +9,7 @@ extern struct framepars_past_t *apastpars[SENSOR_PORTS];
 extern unsigned long           *aglobalPars[SENSOR_PORTS];
 extern unsigned long           *amultiSensIndex[SENSOR_PORTS];
 extern unsigned long           *amultiSensRvrsIndex[SENSOR_PORTS];
-extern wait_queue_head_t        framepars_wait_queue[SENSOR_PORTS];
+extern wait_queue_head_t       aframepars_wait_queue[SENSOR_PORTS];
 
 ///TODO: init framepars (zero parameters) before initscripts (not when detecting the sensors) - then initscript will be able to overwrite some
 void init_framepars_ptr(int sensor_port);

src/include/elphel/driver_numbers.h

@@ -84,11 +84,21 @@
 #define FPGA_SJTAG_MINOR_OFFSET     8 // Minors range start for the sensor port JTAG
 #define FPGA_SJTAG_BOUNDARY_OFFSET 12 // Minors range start for the sensor port boundary
 
-#define X3X3_EXIF_EXIF    0 // read encoded Exif data (SEEK_END,
-#define X3X3_EXIF_META    1 // write metadata, concurently opened files. All writes atomic
+//#define X3X3_EXIF_EXIF    0 // read encoded Exif data (SEEK_END,
+//#define X3X3_EXIF_META    1 // write metadata, concurently opened files. All writes atomic
 // control/setup devices
 #define X3X3_EXIF_TEMPLATE 2 // write Exif template
 #define X3X3_EXIF_METADIR  3 // write metadata to Exif header translation (dir_table[MAX_EXIF_FIELDS])
 // those 2 files will disable exif_enable and exif_valid, truncate file size to file pointer on release.
 #define X3X3_EXIF_TIME     4 // write today/tomorrow date (YYYY:MM:DD) and number of seconds at today/tomorrow
                              // midnight (00:00:00) in seconds from epoch (long, startting from LSB)
+
+#define X3X3_EXIF_EXIF_CHN_0   0x10 // read encoded Exif data (SEEK_END,
+#define X3X3_EXIF_EXIF_CHN_1   0x11 // read encoded Exif data (SEEK_END,
+#define X3X3_EXIF_EXIF_CHN_2   0x12 // read encoded Exif data (SEEK_END,
+#define X3X3_EXIF_EXIF_CHN_3   0x13 // read encoded Exif data (SEEK_END,
+#define X3X3_EXIF_META_CHN_0   0x20 // write metadata, concurently opened files. All writes atomic
+#define X3X3_EXIF_META_CHN_1   0x21 // write metadata, concurently opened files. All writes atomic
+#define X3X3_EXIF_META_CHN_2   0x22 // write metadata, concurently opened files. All writes atomic
+#define X3X3_EXIF_META_CHN_3   0x23 // write metadata, concurently opened files. All writes atomic
+