fixeng stuff up , block capture verified and implemented in python

comm/msg_responses.c

@@ -21,14 +21,13 @@ void com_respond_snprintf(TF_ID frame_id, TF_TYPE type, const char *format, ...)
 
 void com_respond_buf(TF_ID frame_id, TF_TYPE type, const uint8_t *buf, uint32_t len)
 {
-    TF_Msg msg;
-    TF_ClearMsg(&msg);
-    {
-        msg.type = type;
-        msg.frame_id = frame_id;
-        msg.data = buf;
-        msg.len = (TF_LEN) len;
-    }
+    TF_Msg msg = {
+        .type = type,
+        .frame_id = frame_id,
+        .data = buf,
+        .len = (TF_LEN) len,
+    };
+
     TF_Respond(comm, &msg);
 }
 
@@ -57,14 +56,13 @@ void com_send_pb(TF_TYPE type, PayloadBuilder *pb)
 
 void com_send_buf(TF_TYPE type, const uint8_t *buf, uint32_t len)
 {
-    TF_Msg msg;
-    TF_ClearMsg(&msg);
-    {
-        msg.type = MSG_UNIT_REPORT;
-        msg.data = buf;
-        msg.len = (TF_LEN) len;
-        msg.type = type;
-    }
+    TF_Msg msg = {
+        .type = MSG_UNIT_REPORT,
+        .data = buf,
+        .len = (TF_LEN) len,
+        .type = type,
+    };
+
     TF_Send(comm, &msg); // no listener
 }
 

units/adc/_adc_core.c

@@ -10,9 +10,61 @@
 
 #define DMA_POS(priv) ((priv)->dma_buffer_itemcount - (priv)->DMA_CHx->CNDTR)
 
+static void UADC_JobSendBlockChunk(Job *job)
+{
+    Unit *unit = job->unit;
+    assert_param(unit);
+    struct priv *priv = unit->data;
+    assert_param(priv);
+
+    uint32_t start = job->data1;
+    uint32_t count = job->data2;
+    bool close = (bool) job->data3;
+
+    dbg("Send indices [%d -> %d)", (int)start, (int)(start+count));
+
+    TF_TYPE type = close ? EVT_CAPT_DONE : EVT_CAPT_MORE;
+
+    TF_Msg msg = {
+        .frame_id = priv->stream_frame_id,
+        .len = (TF_LEN) (1 + count*sizeof(uint16_t)),
+        .type = type,
+    };
+
+    TF_Respond_Multipart(comm, &msg);
+    TF_Multipart_Payload(comm, &priv->stream_serial, 1);
+    TF_Multipart_Payload(comm, (uint8_t *) (priv->dma_buffer + start), count * sizeof(uint16_t));
+    TF_Multipart_Close(comm);
+
+    priv->stream_serial++;
+}
+
+static void UADC_JobSendEndOfStreamMsg(Job *job)
+{
+    Unit *unit = job->unit;
+    assert_param(unit);
+    struct priv *priv = unit->data;
+    assert_param(priv);
+
+    TF_Msg msg = {
+        .type = EVT_CAPT_DONE,
+        .frame_id = (TF_ID) job->data1
+    };
+    TF_Respond(comm, &msg);
+}
+
 void UADC_ReportEndOfStream(Unit *unit)
 {
-    dbg("~~End Of Stream msg~~");
+    assert_param(unit);
+    struct priv *priv = unit->data;
+    assert_param(priv);
+
+    Job j = {
+        .unit = unit,
+        .data1 = priv->stream_frame_id,
+        .cb = UADC_JobSendEndOfStreamMsg
+    };
+    scheduleJob(&j);
 }
 
 void UADC_DMA_Handler(void *arg)
@@ -62,23 +114,25 @@ void UADC_DMA_Handler(void *arg)
                         priv->trig_stream_remain -= sgcount;
                     }
 
-                    dbg("Would send %d groups (u16 offset %d -> %d)", (int) sgcount,
-                        (int) start, (int) (start + sgcount * priv->nb_channels));
+                    bool close = !m_stream && priv->trig_stream_remain == 0;
 
-                    // TODO send the data together with remaining count (used to detect end of transmission)
+                    Job j = {
+                        .unit = unit,
+                        .data1 = start,
+                        .data2 = sgcount * priv->nb_channels,
+                        .data3 = (uint32_t) close,
+                        .cb = UADC_JobSendBlockChunk
+                    };
+                    scheduleJob(&j);
 
-                    if (m_trigd || m_fixcpt) { // Trig'd or Block capture - check for the max count condition
-                        if (priv->trig_stream_remain == 0) {
+                    if (close) {
                         dbg("End of capture");
-                            UADC_ReportEndOfStream(unit);
-
                         // If auto-arm enabled, we need to re-arm again.
                         // However, EOS irq is disabled during the capture.
                         // We have to wait for the next EOS interrupt to occur.
                         // TODO verify if keeping the EOS irq enabled during capture has significant performance penalty. If not, we can leave it enabled.
                         UADC_SwitchMode(unit, (priv->auto_rearm && m_trigd) ? ADC_OPMODE_REARM_PENDING : ADC_OPMODE_IDLE);
                     }
-                    }
                 } else {
                     dbg("start==end, skip this irq");
                 }
@@ -203,10 +257,11 @@ void UADC_HandleTrigger(Unit *unit, uint8_t edge_type, uint64_t timestamp)
         unit->_tick_cnt = 0;
     }
 
-    // TODO Send pre-trigger
-
     priv->stream_startpos = (uint16_t) DMA_POS(priv);
     priv->trig_stream_remain = priv->trig_len;
+    priv->stream_serial = 0;
+
+    // TODO Send pre-trigger
 
     dbg("Trigger condition hit, edge=%d, startpos %d", edge_type, (int)priv->stream_startpos);
 
@@ -222,6 +277,7 @@ void UADC_StartBlockCapture(Unit *unit, uint32_t len, TF_ID frame_id)
     priv->stream_frame_id = frame_id;
     priv->stream_startpos = (uint16_t) DMA_POS(priv);
     priv->trig_stream_remain = len;
+    priv->stream_serial = 0;
     UADC_SwitchMode(unit, ADC_OPMODE_BLCAP);
 }
 
@@ -234,6 +290,7 @@ void UADC_StartStream(Unit *unit, TF_ID frame_id)
 
     priv->stream_frame_id = frame_id;
     priv->stream_startpos = (uint16_t) DMA_POS(priv);
+    priv->stream_serial = 0;
     dbg("Start streaming.");
     UADC_SwitchMode(unit, ADC_OPMODE_STREAM);
 }

units/adc/_adc_internal.h

@@ -17,10 +17,17 @@ enum uadc_opmode {
     ADC_OPMODE_REARM_PENDING, //!< Idle, waiting for the next sample to re-arm (auto trigger).
     ADC_OPMODE_ARMED,  //!< Armed for a trigger. Direct access and averaging are disabled.
     ADC_OPMODE_TRIGD,  //!< Triggered, sending pre-trigger and streaming captured data.
-    ADC_OPMODE_BLCAP,//!< Capture of fixed length without a trigger
+    ADC_OPMODE_BLCAP,  //!< Capture of fixed length without a trigger
     ADC_OPMODE_STREAM, //!< Unlimited capture
 };
 
+enum uadc_event {
+    EVT_CAPT_START = 50,  //!< Capture start (used in event in the first frame when trigger is detected)
+    EVT_CAPT_MORE = 51,   //!< Capture data payload (used as TYPE for all capture types)
+    EVT_CAPT_DONE = 52,   //!< End of trig'd or block capture payload (last frame with data),
+                          //!<   or a farewell message after closing stream using abort(), in this case without data.
+};
+
 /** Private data structure */
 struct priv {
     // settings
@@ -62,6 +69,7 @@ struct priv {
     bool auto_rearm;          //!< Flag that the trigger should be re-armed after the stream finishes
     uint16_t trig_holdoff;    //!< Trigger hold-off time, set when configuring the trigger
     TF_ID stream_frame_id;    //!< Session ID for multi-part stream (response or report)
+    uint8_t stream_serial;
 };
 
 /** Allocate data structure and set defaults */

units/adc/unit_adc.c

@@ -70,7 +70,6 @@ static error_t UADC_handleRequest(Unit *unit, TF_ID frame_id, uint8_t command, P
 
             for (uint8_t i = 0; i < 18; i++) {
                 if (priv->extended_channels_mask & (1 << i)) {
-                    pb_u8(&pb, i);
                     pb_u16(&pb, priv->last_samples[i]);
                 }
             }
@@ -88,7 +87,6 @@ static error_t UADC_handleRequest(Unit *unit, TF_ID frame_id, uint8_t command, P
 
             for (uint8_t i = 0; i < 18; i++) {
                 if (priv->extended_channels_mask & (1 << i)) {
-                    pb_u8(&pb, i);
                     pb_float(&pb, priv->averaging_bins[i]);
                 }
             }