Auto set as max scale when device changed

DSView/pv/mainwindow.cpp

@@ -1699,15 +1699,21 @@ namespace pv
                 _msg->close();
                 _msg = NULL;
             }
- 
-            _sampling_bar->update_device_list();
+  
             reset_all_view();
             load_device_config();
+            _sampling_bar->update_device_list();
             
             _logo_bar->dsl_connected(_session->get_device()->is_hardware());
             update_toolbar_view_status();
             _session->device_event_object()->device_updated();
 
+            if (_device_agent->is_hardware())
+                _session->on_load_config_end();
+            
+            if (_device_agent->get_work_mode() == LOGIC && _device_agent->is_file() == false)
+                _view->auto_set_max_scale();
+
             if (_device_agent->is_file())
             {
                 check_session_file_version();
@@ -1722,7 +1728,7 @@ namespace pv
                 }
                 
                 _session->start_capture(true);
-            }
+            } 
         }
         break;
 
@@ -1737,12 +1743,18 @@ namespace pv
             _view->timebase_changed();
             break;
 
-        case DSV_MSG_DEVICE_MODE_CHANGED:
-            _sampling_bar->update_sample_rate_list();
+        case DSV_MSG_DEVICE_MODE_CHANGED:           
             _view->mode_changed(); 
             reset_all_view();
-            load_device_config();
+            load_device_config(); 
             update_toolbar_view_status();
+            _sampling_bar->update_sample_rate_list();
+
+            if (_device_agent->is_hardware())
+                _session->on_load_config_end();
+            
+            if (_device_agent->get_work_mode() == LOGIC)
+                _view->auto_set_max_scale();
             break;
 
         case DSV_MSG_NEW_USB_DEVICE:

DSView/pv/sigsession.cpp

@@ -240,7 +240,7 @@ namespace pv
         _view_data->clear();
         _capture_data->clear();
         _capture_data = _view_data;
-
+ 
         init_signals();
 
         set_cur_snap_samplerate(_device_agent.get_sample_rate());
@@ -812,8 +812,7 @@ namespace pv
                 break;
             } 
         }
-
-        dsv_info("SigSession::init_signals(), clear signals");
+ 
         clear_signals();
 
         std::vector<view::Signal *>().swap(_signals);
@@ -2079,6 +2078,7 @@ namespace pv
 
             if (cur_mode == LOGIC){
                 clear_all_decode_task2();
+                clear_decode_result();
             }
 
             _is_stream_mode = false;
@@ -2091,14 +2091,15 @@ namespace pv
                 }
             }
 
-            if (_view_data != _capture_data){
-                _capture_data->clear();
-                _capture_data = _view_data;             
-            }
-            set_cur_snap_samplerate(_device_agent.get_sample_rate());
-            set_cur_samplelimits(_device_agent.get_sample_limit());
-
+            _capture_data->clear();
+            _view_data->clear();
+            _capture_data = _view_data;              
+            
             init_signals();
+
+            set_cur_snap_samplerate(_device_agent.get_sample_rate());
+            set_cur_samplelimits(_device_agent.get_sample_limit()); 
+
             dsv_info("Switch work mode to:%d", mode);
             broadcast_msg(DSV_MSG_DEVICE_MODE_CHANGED);
             return true;
@@ -2211,4 +2212,10 @@ namespace pv
         return false;     
     }
 
+    void SigSession::on_load_config_end()
+    {
+        set_cur_snap_samplerate(_device_agent.get_sample_rate());
+        set_cur_samplelimits(_device_agent.get_sample_limit());
+    }
+
 } // namespace pv

DSView/pv/sigsession.h

@@ -409,6 +409,8 @@ public:
         return get_signal_snapshot()->have_data();
     }
 
+    void on_load_config_end();
+
 private:
     void set_cur_samplelimits(uint64_t samplelimits);
     void set_cur_snap_samplerate(uint64_t samplerate);

libsigrok4DSL/hardware/demo/demo.c

@@ -246,7 +246,7 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
     struct demo_context *const devc = sdi->priv;
 
     if (sdi->status == SR_ST_ACTIVE)
-        return;
+        return SR_OK;
 
     reset_demo_device(sdi);