Merge pull request #1207 from slsdetectorgroup/fix_blackfin_read_access

ctb: fix bug in blackfin read access to firmware registers

slsDetectorServers/ctbDetectorServer/slsDetectorFunctionList.c

@@ -15,6 +15,7 @@
 #include "loadPattern.h"
 
 #include <netinet/in.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h> // usleep
@@ -93,6 +94,10 @@ void basictests() {
     LOG(logINFOBLUE, ("********* Chip Test Board Virtual Server *********\n"));
 #else
     LOG(logINFOBLUE, ("************* Chip Test Board Server *************\n"));
+    initError = enableBlackfinAMCExternalAccessExtension(initErrorMessage);
+    if (initError == FAIL) {
+        return;
+    }
     initError = defineGPIOpins(initErrorMessage);
     if (initError == FAIL) {
         return;
@@ -438,6 +443,32 @@ uint32_t getDetectorIP() {
     return res;
 }
 
+int enableBlackfinAMCExternalAccessExtension(char *mess) {
+    unsigned int value;
+    const char *file_path = BFIN_AMC_ACCESS_EXTENSION_FNAME;
+    FILE *file = fopen(file_path, "r");
+    if (!file) {
+        strcpy(mess, "Failed to enable blackfin AMC access extension. Could "
+                     "not read EBIU_AMBCTL1\n");
+        LOG(logERROR, (mess));
+        return FAIL;
+    }
+    fscanf(file, "%x", &value);
+    fclose(file);
+
+    value |= BFIN_AMC_ACCESS_EXTENSION_ENA_VAL;
+    file = fopen(file_path, "w");
+    if (!file) {
+        strcpy(mess, "Failed to enable blackfin AMC access extension. Could "
+                     "not write EBIU_AMBCTL1\n");
+        LOG(logERROR, (mess));
+        return FAIL;
+    }
+    fprintf(file, "0x%x", value);
+    fclose(file);
+    return OK;
+}
+
 /* initialization */
 
 void initControlServer() {

slsDetectorServers/slsDetectorServer/include/blackfin.h

@@ -5,6 +5,23 @@
 #include <inttypes.h>
 #include <sys/types.h>
 
+/** enable support for ARDY signal on interface to FPGA
+ * needed to properly translate avalon_mm_waitrequest in the CTB firmware
+ * https://www.analog.com/media/en/dsp-documentation/processor-manuals/bf537_hwr_Rev3.2.pdf
+ * page 274
+ * */
+#define BFIN_EBIU_AMBCTL1_B2_ARDY_ENA_OFST (0)
+#define BFIN_EBIU_AMBCTL1_B2_ARDY_ENA_MSK                                      \
+    (1 << BFIN_EBIU_AMBCTL1_B2_ARDY_ENA_OFST)
+#define BFIN_EBIU_AMBCTL1_B2_ARDY_POL_OFST (1)
+#define BFIN_EBIU_AMBCTL1_B2_ARDY_POL_MSK                                      \
+    (1 << BFIN_EBIU_AMBCTL1_B2_ARDY_POL_OFST)
+
+#define BFIN_AMC_ACCESS_EXTENSION_ENA_VAL                                      \
+    (BFIN_EBIU_AMBCTL1_B2_ARDY_ENA_MSK | BFIN_EBIU_AMBCTL1_B2_ARDY_POL_MSK)
+#define BFIN_AMC_ACCESS_EXTENSION_FNAME                                        \
+    "/sys/kernel/debug/blackfin/ebiu_amc/EBIU_AMBCTL1"
+
 /** I2C defines */
 #define I2C_CLOCK_MHZ (131.25)
 

slsDetectorServers/slsDetectorServer/include/slsDetectorFunctionList.h

@@ -113,6 +113,10 @@ void setModuleId(int modid);
 u_int64_t getDetectorMAC();
 u_int32_t getDetectorIP();
 
+#if defined(CHIPTESTBOARDD)
+int enableBlackfinAMCExternalAccessExtension(char *mess);
+#endif
+
 // initialization
 void initControlServer();
 void initStopServer();

slsSupportLib/include/sls/versionAPI.h

@@ -3,10 +3,10 @@
 /** API versions */
 #define APILIB       "developer 0x241122"
 #define APIRECEIVER  "developer 0x241122"
-#define APICTB       "developer 0x250310"
 #define APIGOTTHARD2 "developer 0x250310"
 #define APIMOENCH    "developer 0x250310"
 #define APIEIGER     "developer 0x250310"
 #define APIXILINXCTB "developer 0x250311"
 #define APIJUNGFRAU  "developer 0x250318"
 #define APIMYTHEN3   "developer 0x250409"
+#define APICTB       "developer 0x250519"