increase bbl denom range (cleanup)

src/main/blackbox/blackbox.c

@@ -93,7 +93,7 @@
 #define BLACKBOX_INTERVED_CARD_DETECTION 0
 #endif
 
-PG_REGISTER_WITH_RESET_TEMPLATE(blackboxConfig_t, blackboxConfig, PG_BLACKBOX_CONFIG, 0);
+PG_REGISTER_WITH_RESET_TEMPLATE(blackboxConfig_t, blackboxConfig, PG_BLACKBOX_CONFIG, 1);
 
 PG_RESET_TEMPLATE(blackboxConfig_t, blackboxConfig,
     .device = DEFAULT_BLACKBOX_DEVICE,
@@ -1540,7 +1540,7 @@ static bool blackboxWriteSysinfo(void)
         BLACKBOX_PRINT_HEADER_LINE("Firmware date", "%s %s",                buildDate, buildTime);
         BLACKBOX_PRINT_HEADER_LINE("Log start datetime", "%s",              blackboxGetStartDateTime(buf));
         BLACKBOX_PRINT_HEADER_LINE("Craft name", "%s",                      systemConfig()->name);
-        BLACKBOX_PRINT_HEADER_LINE("P interval", "%d/%d",                   blackboxConfig()->rate_num, blackboxConfig()->rate_denom);
+        BLACKBOX_PRINT_HEADER_LINE("P interval", "%u/%u",                   blackboxConfig()->rate_num, blackboxConfig()->rate_denom);
         BLACKBOX_PRINT_HEADER_LINE("minthrottle", "%d",                     motorConfig()->minthrottle);
         BLACKBOX_PRINT_HEADER_LINE("maxthrottle", "%d",                     motorConfig()->maxthrottle);
         BLACKBOX_PRINT_HEADER_LINE("gyro_scale", "0x%x",                    castFloatBytesToInt(1.0f));
@@ -1949,18 +1949,18 @@ void blackboxInit(void)
         blackboxSetState(BLACKBOX_STATE_DISABLED);
     }
 
+    /* FIXME is this really necessary ? Why?  */
+    int max_denom = 4096*1000 / gyroConfig()->looptime;
+    if (blackboxConfig()->rate_denom > max_denom) {
+        blackboxConfigMutable()->rate_denom = max_denom;
+    }
     /* Decide on how ofter are we going to log I-frames*/
     if (blackboxConfig()->rate_denom <= 32) {
         blackboxIFrameInterval = 32;
     }
-    else if (blackboxConfig()->rate_denom <= 64) {
-        blackboxIFrameInterval = 64;
-    }
-    else if (blackboxConfig()->rate_denom <= 128) {
-        blackboxIFrameInterval = 128;
-    }
     else {
-        blackboxIFrameInterval = 256;
+            // Use next higher power of two via GCC builtin
+        blackboxIFrameInterval = 1 << (32 - __builtin_clz (blackboxConfig()->rate_denom - 1));
     }
 }
 #endif

src/main/blackbox/blackbox.h

@@ -22,8 +22,8 @@
 #include "config/parameter_group.h"
 
 typedef struct blackboxConfig_s {
-    uint8_t rate_num;
+    uint16_t rate_num;
-    uint8_t rate_denom;
+    uint16_t rate_denom;
     uint8_t device;
     uint8_t invertedCardDetection;
 } blackboxConfig_t;

src/main/fc/fc_msp.c

@@ -956,16 +956,23 @@ static bool mspFcProcessOutCommand(uint16_t cmdMSP, sbuf_t *dst, mspPostProcessF
         break;
 
     case MSP_BLACKBOX_CONFIG:
+        sbufWriteU8(dst, 0); // API no longer supported
+        sbufWriteU8(dst, 0);
+        sbufWriteU8(dst, 0);
+        sbufWriteU8(dst, 0);
+        break;
+
+    case MSP2_BLACKBOX_CONFIG:
 #ifdef USE_BLACKBOX
         sbufWriteU8(dst, 1); //Blackbox supported
         sbufWriteU8(dst, blackboxConfig()->device);
-        sbufWriteU8(dst, blackboxConfig()->rate_num);
+        sbufWriteU16(dst, blackboxConfig()->rate_num);
-        sbufWriteU8(dst, blackboxConfig()->rate_denom);
+        sbufWriteU16(dst, blackboxConfig()->rate_denom);
 #else
         sbufWriteU8(dst, 0); // Blackbox not supported
         sbufWriteU8(dst, 0);
-        sbufWriteU8(dst, 0);
+        sbufWriteU16(dst, 0);
-        sbufWriteU8(dst, 0);
+        sbufWriteU16(dst, 0);
 #endif
         break;
 
@@ -2089,12 +2096,12 @@ static mspResult_e mspFcProcessInCommand(uint16_t cmdMSP, sbuf_t *src)
         break;
 
 #ifdef USE_BLACKBOX
-    case MSP_SET_BLACKBOX_CONFIG:
+    case MSP2_SET_BLACKBOX_CONFIG:
         // Don't allow config to be updated while Blackbox is logging
-        if ((dataSize >= 3) && blackboxMayEditConfig()) {
+        if ((dataSize >= 5) && blackboxMayEditConfig()) {
             blackboxConfigMutable()->device = sbufReadU8(src);
-            blackboxConfigMutable()->rate_num = sbufReadU8(src);
+            blackboxConfigMutable()->rate_num = sbufReadU16(src);
-            blackboxConfigMutable()->rate_denom = sbufReadU8(src);
+            blackboxConfigMutable()->rate_denom = sbufReadU16(src);
         } else
             return MSP_RESULT_ERROR;
         break;

src/main/fc/settings.yaml

@@ -396,11 +396,11 @@ groups:
       - name: blackbox_rate_num
         field: rate_num
         min: 1
-        max: 255
+        max: 65535
       - name: blackbox_rate_denom
         field: rate_denom
         min: 1
-        max: 255
+        max: 65535
       - name: blackbox_device
         field: device
         table: blackbox_device
@@ -1768,4 +1768,3 @@ groups:
         min: 0
         max: 255
         type: uint8_t
-

src/main/msp/msp_protocol.h

@@ -60,7 +60,7 @@
 #define MSP_PROTOCOL_VERSION                0   // Same version over MSPv1 & MSPv2 - message format didn't change and it backward compatible
 
 #define API_VERSION_MAJOR                   2   // increment when major changes are made
-#define API_VERSION_MINOR                   2   // increment when any change is made, reset to zero when major changes are released after changing API_VERSION_MAJOR
+#define API_VERSION_MINOR                   3   // increment when any change is made, reset to zero when major changes are released after changing API_VERSION_MAJOR
 
 #define API_VERSION_LENGTH                  2
 

src/main/msp/msp_protocol_v2_inav.h

@@ -45,3 +45,6 @@
 #define MSP2_INAV_SELECT_BATTERY_PROFILE        0x2018
 
 #define MSP2_INAV_DEBUG                         0x2019
+
+#define MSP2_BLACKBOX_CONFIG                    0x201A
+#define MSP2_SET_BLACKBOX_CONFIG                0x201B