finalized board detection, SENSPGM state checking moved to common part

src/drivers/elphel/lepton.c

@@ -465,7 +465,7 @@ int lepton_pgm_detectsensor   (int sensor_port,               ///< sensor port n
 //    int i2c_data,i2c_rslt;
     struct sensor_t * psensor; // current sensor
 //    x393_sensio_ctl_t sensio_ctl = {.d32=0};
-    x393_status_sens_io_t status; // check board exists
+    //x393_status_sens_io_t status; // check board exists
 //    unsigned short * sensor_multi_regs;
 
     // temporary
@@ -538,14 +538,17 @@ int lepton_pgm_detectsensor   (int sensor_port,               ///< sensor port n
     	return 0;  // no sensor found
     }
 #else
-//assume Lepton sesnors if there is some sesnor board attached
+    // this check is moved to pgm_functions.c, see check_senspgmin_state()
+    /*
+    //assume Lepton sensors if there is some sensor board attached
     status = x393_sensio_status(sensor_port);
     if (!status.senspgmin){
-        dev_info(g_dev_ptr,"Some sensor board is attached to port %d, assumimg Lepton 3.5 as FPGA is programmed for it\n",sensor_port);
+        dev_info(g_dev_ptr,"Some sensor board is attached to port %d, assuming Lepton 3.5 as FPGA is programmed for it\n",sensor_port);
     } else {
-        dev_info(g_dev_ptr,"No sesnor board is attached to port %d\n",sensor_port);
+        dev_info(g_dev_ptr,"No sensor board is attached to port %d\n",sensor_port);
     	return 0;  // no sensor found
     }
+    */
 #endif
 
     // Sensor recognized, go on

src/drivers/elphel/pgm_functions.c

@@ -356,6 +356,37 @@ int add_sensor_proc(int port,   ///< sensor port
     return 0;
 }
 
+/** Check SENSPGM pin state to determine board type connected to
+ *  the sensor_port.
+ *  '1' (pulled up) - nothing or mux board
+ *  '0' (grounded)  - some kind of sensor board
+ * @param sensor_port
+ * @return pin state
+ */
+inline int check_senspgmin_state(int sensor_port){
+
+    // Need to check a certain pin state, which is
+    // senspgmin (bit 24 of x393_status_sens_io_t)
+    // senspgmin = 0 - some sensor board is attached to port
+    // senspgmin = 1 - mux board or nothing
+    x393_status_ctrl_t    status_ctrl = {.d32 = 0};
+    x393_status_sens_io_t status;
+    int i;
+
+    // check senspgmin (bit 24 of x393_status_sens_io_t)
+    status = x393_sensio_status(sensor_port);
+    status_ctrl.seq_num = status.seq_num + 1;
+    status_ctrl.mode = 1;
+    set_x393_sensio_status_cntrl(status_ctrl, sensor_port);
+    for(i=0;i<10;i++){
+    	status = x393_sensio_status(sensor_port);
+    	if(status.seq_num==status_ctrl.seq_num){
+    		break;
+    	}
+    }
+    return status.senspgmin;
+}
+
 /** Detect and initialize sensor and related data structures
  * - detect sensor type
  * - set sensor structure (capabilities),
@@ -373,15 +404,7 @@ int pgm_detectsensor   (int sensor_port,               ///< sensor port number (
     x393_camsync_io_t   camsync_src  = {.d32=0x00000}; // all disabled (use internal)
     x393_camsync_io_t   camsync_dst  = {.d32=0x00000}; // all disable - nothing to output
 
-    // Need to check a certain pin state, which is
-    // senspgmin (bit 24 of x393_status_sens_io_t)
-    // senspgmin = 0 - some sensor board is attached to port
-    // senspgmin = 1 - mux board or nothing
-    x393_status_ctrl_t    status_ctrl = {.d32 = 0};
-    x393_status_sens_io_t status;
-    int i;
-
-    // Setting trigger input, output and preriod to off
+    // Setting trigger input, output and period to off
 
     int was_sensor_freq = 0; // 90000000; // getClockFreq(1);
     int qperiod;
@@ -484,23 +507,11 @@ int pgm_detectsensor   (int sensor_port,               ///< sensor port number (
     } else {
         dev_dbg(g_dev_ptr,"Mux mode for port %d SENSOR_NONE, skipping 10359 detection\n",sensor_port);
         MDP(DBGB_PADD, sensor_port,"Mux mode for port %d SENSOR_NONE, skipping 10359 detection\n",sensor_port)
-    }
 
-    // check senspgmin (bit 24 of x393_status_sens_io_t)
-    status = x393_sensio_status(sensor_port);
-    status_ctrl.seq_num = status.seq_num + 1;
-    status_ctrl.mode = 1;
-    set_x393_sensio_status_cntrl(status_ctrl, sensor_port);
-    for(i=0;i<10;i++){
-    	status = x393_sensio_status(sensor_port);
-    	if(status.seq_num==status_ctrl.seq_num){
-    		break;
-    	}
-    }
-    // '1' - means empty port (pull up) or mux board
-    if (status.senspgmin==1){
-    	dev_info(g_dev_ptr,"No sensors connected to port %d \n",sensor_port);
-    	return 0;
+        if (check_senspgmin_state()==1){
+        	dev_info(g_dev_ptr,"No sensors connected to port %d \n",sensor_port);
+        	return 0;
+        }
     }
 
     //if ((thispars->pars[P_SENSOR]==0) ||  // multisensor not detected