[sdlogger] conf added description, target to ap, consistent naming

conf/modules/logger_sd_spi_direct.xml

@@ -2,10 +2,22 @@
 
 <module name="logger_sd_spi_direct" dir="loggers">
   <doc>
-    <description>Direct SPI SD Logger that saves pprzlog messages to SD Card.</description>
+    <description>
+Direct SPI SD Logger that saves pprzlog messages to SD Card.
+
+This module logs data directly to an SD Card which is connected on a SPI port. For now, it is only possible to use a radio switch to start and stop logging.
+
+The values to be logged are defined in the telemetry config file. An example is available in rotorcraft_with_logger.xml. The logmessage is defined as the default message in the process "Logger".
+
+A LOGGER_LED can be enabled which indicates if the logger is writing or reading data.
+
+Downloading of the data occurs over an UART datalink. There is no check to verify that all data is transfered, so it is recommended to use an FTDI cable to the UART port.
+
+Do not use start/stop functionality of the module, the module is not intended to be used like this.
+</description>
     <configure name="SDLOGGER_DIRECT_SPI" value="SPI1|SPI2|SPI3|SPI4|SPI5|SPI6" description="Port to which the SD Card is connected."/>
     <configure name="SDLOGGER_DIRECT_SPI_SLAVE" value="SPI_SLAVE1|SPI_SLAVE2|SPI_SLAVE3|SPI_SLAVE4|SPI_SLAVE5|SPI_SLAVE6" description="Port to which the SD Card is connected."/>
-    <configure name="LOGGER_CONTROL_SWITCH" value="RADIO_AUX2"/>
+    <configure name="SDLOGGER_DIRECT_CONTROL_SWITCH" value="RADIO_AUX2"/>
     <configure name="LOGGER_LED" value="none"/>
   </doc>
   <settings>
@@ -24,7 +36,7 @@
   <init fun="sdlogger_spi_direct_init()"/>
   <periodic fun="sdlogger_spi_direct_periodic()" freq="512" start="sdlogger_spi_direct_start()" stop="sdlogger_spi_direct_stop()" autorun="TRUE"/>
   <datalink message="SETTING" fun="sdlogger_spi_direct_command()"/>
-  <makefile>
+  <makefile target="ap">
 
     <raw>
         SDLOGGER_DIRECT_SPI ?= spi2
@@ -35,7 +47,7 @@
         SDLOGGER_DIRECT_SPI_SLAVE_LOWER=$(shell echo $(SDLOGGER_DIRECT_SPI_SLAVE) | tr A-Z a-z)
         SDLOGGER_DIRECT_SPI_SLAVE_UPPER=$(shell echo $(SDLOGGER_DIRECT_SPI_SLAVE) | tr a-z A-Z)
 
-        LOGGER_CONTROL_SWITCH ?= RADIO_AUX2
+        SDLOGGER_DIRECT_CONTROL_SWITCH ?= RADIO_AUX2
 
         LOGGER_LED ?= none
         ifneq ($(LOGGER_LED),none)
@@ -43,19 +55,18 @@
         endif
 
         ap.srcs += subsystems/datalink/downlink.c subsystems/datalink/pprzlog_transport.c
+
+        include $(CFG_SHARED)/spi_master.makefile
     </raw>
 
     <file name="sdcard_spi.c" dir="peripherals"/>
     <file name="sdlogger_spi_direct.c"/>
-  </makefile>
+
-  <makefile target="ap">
-    <define name="USE_SDLOGGER_SPI_DIRECT" value="1" />
-    <define name="SPI_MASTER" value="1" />
     <define name="USE_$(SDLOGGER_DIRECT_SPI_UPPER)" value="1" />
     <define name="SDLOGGER_SPI_LINK_DEVICE" value="$(SDLOGGER_DIRECT_SPI_LOWER)" />
     <define name="USE_$(SDLOGGER_DIRECT_SPI_SLAVE_UPPER)" value="1" />
     <define name="SDLOGGER_SPI_LINK_SLAVE_NUMBER" value="$(SDLOGGER_DIRECT_SPI_SLAVE_UPPER)" />
-    <define name="SDLOGGER_CONTROL_SWITCH" value="$(LOGGER_CONTROL_SWITCH)"/>
+    <define name="SDLOGGER_CONTROL_SWITCH" value="$(SDLOGGER_DIRECT_CONTROL_SWITCH)"/>
   </makefile>
 </module>