Merge pull request #388 from ed-xmos/fetaure/multi_interface

Changes for variable channel count ADAT Tx interfaces

CHANGELOG.rst

@@ -11,6 +11,8 @@ UNRELEASED
   * FIXED:     Incorrect internal input EP count for input only devices
   * ADDED:     MIDI unit and subsystem tests
   * FIXED:     ADAT Tx called too frequently
+  * CHANGED:   ADAT Tx presents different channel count interfaces based on sample
+    rate 
   * CHANGED:   aud_to_host buffer size and the condition to come out of underflow
     in decoupler to fix buffer underflow seen in ADAT tests
   * FIXED:     Initialise SMUX based on DEFAULT_FREQ in clockgen

lib_xua/api/xua_conf_default.h

@@ -412,22 +412,6 @@
 #define SPDIF_TX_INDEX        (0)
 #endif
 
-/**
- * @brief Enables ADAT Tx. Default: 0 (Disabled)
- */
-#ifndef XUA_ADAT_TX_EN
-#define XUA_ADAT_TX_EN           (0)
-#endif
-
-/**
- * @brief Defines which output channels (8) should be output on ADAT. Note, Output channels indexed from 0.
- *
- * Default: 0 (i.e. channels [0:7])
- * */
-#ifndef ADAT_TX_INDEX
-#define ADAT_TX_INDEX         (0)
-#endif
-
 /**
  * @brief Enables SPDIF Rx. Default: 0 (Disabled)
  */
@@ -435,24 +419,6 @@
 #define XUA_SPDIF_RX_EN       (0)
 #endif
 
-#if XUA_ADAT_RX_EN
-    #if (MIN_FREQ < 88200)
-        #define ADAT_RX_MAX_CHANS     (8)
-    #elif (MIN_FREQ < 176400)
-        #define ADAT_RX_MAX_CHANS     (4)
-    #else
-        #define ADAT_RX_MAX_CHANS     (2)
-    #endif
-#else
-#define ADAT_RX_MAX_CHANS             (0)
-#endif
-
-/**
- * @brief Enables ADAT Rx. Default: 0 (Disabled)
- */
-#ifndef XUA_ADAT_RX_EN
-#define XUA_ADAT_RX_EN        (0)
-#endif
 
 /**
  * @brief S/PDIF Rx first channel index, defines which channels S/PDIF will be input on.
@@ -467,6 +433,59 @@
     #endif
 #endif
 
+
+/**
+ * @brief Enables ADAT Tx. Default: 0 (Disabled)
+ */
+#ifndef XUA_ADAT_TX_EN
+#define XUA_ADAT_TX_EN           (0)
+#endif
+
+/* Calculate max ADAT channels based on sample rate range. Used for Tx and Rx */
+#if (MIN_FREQ < 88200)
+    #define ADAT_MAX_CHANS     (8)
+#elif (MIN_FREQ < 176400)
+    #define ADAT_MAX_CHANS     (4)
+#else
+    #define ADAT_MAX_CHANS     (2)
+#endif
+
+/* Set the maximum number of channels for ADAT */
+#if XUA_ADAT_TX_EN
+    #define ADAT_TX_MAX_CHANS   ADAT_MAX_CHANS
+#else
+    #define ADAT_TX_MAX_CHANS   (0)
+#endif
+
+/**
+ * @brief Defines which output channels (8) should be output on ADAT. Note, Output channels indexed from 0.
+ *
+ * Default: 0 (i.e. channels [0:7])
+ * */
+#if (XUA_ADAT_TX_EN) || defined(__DOXYGEN__)
+    #ifndef ADAT_TX_INDEX
+        #define ADAT_TX_INDEX (0)
+    #endif
+
+    #if (ADAT_TX_INDEX + ADAT_TX_MAX_CHANS > NUM_USB_CHAN_OUT)
+        #error Not enough channels for ADAT Tx
+    #endif
+#endif
+
+/**
+ * @brief Enables ADAT Rx. Default: 0 (Disabled)
+ */
+#ifndef XUA_ADAT_RX_EN
+#define XUA_ADAT_RX_EN        (0)
+#endif
+
+/* Set the maximum number of channels for ADAT */
+#if XUA_ADAT_RX_EN
+    #define ADAT_RX_MAX_CHANS   ADAT_MAX_CHANS
+#else
+    #define ADAT_RX_MAX_CHANS   (0)
+#endif
+
 /**
  * @brief ADAT Rx first channel index. defines which channels ADAT will be input on.
  * Note, indexed from 0.
@@ -480,13 +499,13 @@
     #endif
 
     #if (ADAT_RX_INDEX + ADAT_RX_MAX_CHANS > NUM_USB_CHAN_IN)
-    #error Not enough channels for ADAT
+        #error Not enough channels for ADAT Rx
     #endif
 #endif
 
-#if (XUA_ADAT_RX_EN)
 
 /* Setup input stream formats for ADAT */
+#if (XUA_ADAT_RX_EN)
     #if (MAX_FREQ > 96000)
         #if (MIN_FREQ > 96000)
             #define INPUT_FORMAT_COUNT 1
@@ -514,7 +533,40 @@
         #define INPUT_FORMAT_COUNT 1
         #define HS_STREAM_FORMAT_INPUT_1_CHAN_COUNT NUM_USB_CHAN_IN
     #endif
+#endif
 
+/* Setup output stream formats for ADAT */
+#if (XUA_ADAT_TX_EN)
+    #if (MAX_FREQ > 96000)
+        #if (MIN_FREQ > 96000)
+            #define OUTPUT_FORMAT_COUNT 1
+            #define HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT NUM_USB_CHAN_OUT
+        #elif (MIN_FREQ > 48000)
+            #define OUTPUT_FORMAT_COUNT 2
+            #define HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT NUM_USB_CHAN_OUT
+            #define HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT (NUM_USB_CHAN_OUT - 2)
+        #else
+            #define OUTPUT_FORMAT_COUNT 3
+            #define HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT NUM_USB_CHAN_OUT
+            #define HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT (NUM_USB_CHAN_OUT - 4)
+            #define HS_STREAM_FORMAT_OUTPUT_3_CHAN_COUNT (NUM_USB_CHAN_OUT - 6)
+        #endif
+    #elif (MAX_FREQ > 48000)
+        #if (MIN_FREQ > 48000)
+            #define OUTPUT_FORMAT_COUNT 1
+            #define HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT NUM_USB_CHAN_OUT
+        #else
+            #define OUTPUT_FORMAT_COUNT 2
+            #define HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT NUM_USB_CHAN_OUT
+            #define HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT (NUM_USB_CHAN_OUT - 4)
+        #endif
+    #else
+        #define OUTPUT_FORMAT_COUNT 1
+        #define HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT NUM_USB_CHAN_OUT
+    #endif
+    #define STREAM_FORMAT_OUTPUT_1_RESOLUTION_BITS  24
+    #define STREAM_FORMAT_OUTPUT_2_RESOLUTION_BITS  24
+    #define STREAM_FORMAT_OUTPUT_3_RESOLUTION_BITS  24
 #endif
 
 /**
@@ -991,7 +1043,18 @@
     #define HS_STREAM_FORMAT_INPUT_3_CHAN_COUNT             NUM_USB_CHAN_IN
 #endif
 
+/* Channel count defines for output streams */
+#ifndef HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT
+    #define HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT            NUM_USB_CHAN_OUT
+#endif
 
+#ifndef HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT
+    #define HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT            NUM_USB_CHAN_OUT
+#endif
+
+#ifndef HS_STREAM_FORMAT_OUTPUT_3_CHAN_COUNT
+    #define HS_STREAM_FORMAT_OUTPUT_3_CHAN_COUNT            NUM_USB_CHAN_OUT
+#endif
 
 /**
  * @brief Sample sub-slot size (bytes) of input stream Alternate 1 when running in high-speed

lib_xua/src/core/endpoint0/xua_endpoint0.c

@@ -968,20 +968,20 @@ void XUA_Endpoint0_loop(XUD_Result_t result, USB_SetupPacket_t sp, chanend c_ep0
                 cfgDesc_Audio2.Audio_Out_Format.bSubslotSize = HS_STREAM_FORMAT_OUTPUT_1_SUBSLOT_BYTES;
                 cfgDesc_Audio2.Audio_Out_Format.bBitResolution = HS_STREAM_FORMAT_OUTPUT_1_RESOLUTION_BITS;
                 cfgDesc_Audio2.Audio_Out_Endpoint.wMaxPacketSize = HS_STREAM_FORMAT_OUTPUT_1_MAXPACKETSIZE;
-                cfgDesc_Audio2.Audio_Out_ClassStreamInterface.bNrChannels = NUM_USB_CHAN_OUT;
+                cfgDesc_Audio2.Audio_Out_ClassStreamInterface.bNrChannels = HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT;
 #endif
 #if (OUTPUT_FORMAT_COUNT > 1)
                 cfgDesc_Audio2.Audio_Out_Format_2.bSubslotSize = HS_STREAM_FORMAT_OUTPUT_2_SUBSLOT_BYTES;
                 cfgDesc_Audio2.Audio_Out_Format_2.bBitResolution = HS_STREAM_FORMAT_OUTPUT_2_RESOLUTION_BITS;
                 cfgDesc_Audio2.Audio_Out_Endpoint_2.wMaxPacketSize = HS_STREAM_FORMAT_OUTPUT_2_MAXPACKETSIZE;
-                cfgDesc_Audio2.Audio_Out_ClassStreamInterface_2.bNrChannels = NUM_USB_CHAN_OUT;
+                cfgDesc_Audio2.Audio_Out_ClassStreamInterface_2.bNrChannels = HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT;
 #endif
 
 #if (OUTPUT_FORMAT_COUNT > 2)
                 cfgDesc_Audio2.Audio_Out_Format_3.bSubslotSize = HS_STREAM_FORMAT_OUTPUT_3_SUBSLOT_BYTES;
                 cfgDesc_Audio2.Audio_Out_Format_3.bBitResolution = HS_STREAM_FORMAT_OUTPUT_3_RESOLUTION_BITS;
                 cfgDesc_Audio2.Audio_Out_Endpoint_3.wMaxPacketSize = HS_STREAM_FORMAT_OUTPUT_3_MAXPACKETSIZE;
-                cfgDesc_Audio2.Audio_Out_ClassStreamInterface_3.bNrChannels = NUM_USB_CHAN_OUT;
+                cfgDesc_Audio2.Audio_Out_ClassStreamInterface_3.bNrChannels = HS_STREAM_FORMAT_OUTPUT_3_CHAN_COUNT;
 #endif
 #endif
 #if (NUM_USB_CHAN_IN > 0)

lib_xua/src/core/endpoint0/xua_ep0_descriptors.h

@@ -1461,7 +1461,7 @@ USB_Config_Descriptor_Audio2_t cfgDesc_Audio2=
         0x00,                                   /* 4  bmControls */
         UAC_FORMAT_TYPE_I,                      /* 5  bFormatType */
         STREAM_FORMAT_OUTPUT_1_DATAFORMAT,      /* 6:10  bmFormats (note this is a bitmap) */
-        NUM_USB_CHAN_OUT,                 /* 11 bNrChannels */
+        HS_STREAM_FORMAT_OUTPUT_1_CHAN_COUNT,   /* 11 bNrChannels */
         0x00000000,                             /* 12:14: bmChannelConfig */
         .iChannelNames                 = offsetof(StringDescTable_t, outputChanStr_1)/sizeof(char *),
     },
@@ -1552,7 +1552,7 @@ USB_Config_Descriptor_Audio2_t cfgDesc_Audio2=
         0x00,                                   /* 4  bmControls */
         UAC_FORMAT_TYPE_I,                      /* 5  bFormatType */
         STREAM_FORMAT_OUTPUT_2_DATAFORMAT,      /* 6:10  bmFormats (note this is a bitmap) */
-        NUM_USB_CHAN_OUT,                 /* 11 bNrChannels */
+        HS_STREAM_FORMAT_OUTPUT_2_CHAN_COUNT,   /* 11 bNrChannels */
         0x00000000,                             /* 12:14: bmChannelConfig */
         .iChannelNames                 = (offsetof(StringDescTable_t, outputChanStr_1)/sizeof(char *)),
     },
@@ -1643,7 +1643,7 @@ USB_Config_Descriptor_Audio2_t cfgDesc_Audio2=
         0x00,                                   /* 4  bmControls */
         UAC_FORMAT_TYPE_I,                      /* 5  bFormatType */
         STREAM_FORMAT_OUTPUT_3_DATAFORMAT,      /* 6:10  bmFormats (note this is a bitmap) */
-        NUM_USB_CHAN_OUT,                 /* 11 bNrChannels */
+        HS_STREAM_FORMAT_OUTPUT_3_CHAN_COUNT,   /* 11 bNrChannels */
         0x00000000,                             /* 12:14: bmChannelConfig */
         .iChannelNames                 = offsetof(StringDescTable_t, outputChanStr_1)/sizeof(char *),
     },