spi: Add support for "transfer" annotations.

There is already an OUTPUT_PYTHON type named 'TRANSFER' that is being
transmitted to stacked decoders. Make the same information available
as annotations (additionally), which can be helpful in some situations.

diff --git a/decoders/spi/pd.py b/decoders/spi/pd.py
index 27971378c24d664301b3a9a70172ab361acaa3df..7cfa2662adbfbf957ba2895fa8df2fd85ec231a6 100644 (file)
--- a/decoders/spi/pd.py
+++ b/decoders/spi/pd.py
@@ -108,12 +108,16 @@ class Decoder(srd.Decoder):
         ('miso-bits', 'MISO bits'),
         ('mosi-bits', 'MOSI bits'),
         ('warnings', 'Human-readable warnings'),
+        ('miso-transfer', 'MISO transfer'),
+        ('mosi-transfer', 'MOSI transfer'),
     )
     annotation_rows = (
         ('miso-data', 'MISO data', (0,)),
         ('miso-bits', 'MISO bits', (2,)),
+        ('miso-transfer', 'MISO transfer', (5,)),
         ('mosi-data', 'MOSI data', (1,)),
         ('mosi-bits', 'MOSI bits', (3,)),
+        ('mosi-transfer', 'MOSI transfer', (6,)),
         ('other', 'Other', (4,)),
     )
     binary = (
@@ -276,6 +280,12 @@ class Decoder(srd.Decoder):
                 self.misobytes = []
                 self.mosibytes = []
             else:
+                if self.have_miso:
+                    self.put(self.ss_transfer, self.samplenum, self.out_ann,
+                        [5, [' '.join(format(x.val, '02X') for x in self.misobytes)]])
+                if self.have_mosi:
+                    self.put(self.ss_transfer, self.samplenum, self.out_ann,
+                        [6, [' '.join(format(x.val, '02X') for x in self.mosibytes)]])
                 self.put(self.ss_transfer, self.samplenum, self.out_python,
                     ['TRANSFER', self.mosibytes, self.misobytes])