Merge pull request #956 from kkitayam/fix_audio_format_for_renesas_rx

add settings for Renesas RX family

examples/device/uac2_headset/src/main.c

@@ -35,7 +35,11 @@
 //--------------------------------------------------------------------+
 
 // List of supported sample rates
+#if defined(__RX__)
+const uint32_t sample_rates[]       = {44100, 48000};
+#else
 const uint32_t sample_rates[]       = {44100, 48000, 88200, 96000};
+#endif
 uint32_t       current_sample_rate  = 44100;
 
 #define N_SAMPLE_RATES  TU_ARRAY_SIZE(sample_rates)

examples/device/uac2_headset/src/tusb_config.h

@@ -100,7 +100,11 @@ extern "C" {
 #define CFG_TUD_AUDIO_FUNC_1_N_FORMATS                               2
 
 // Audio format type I specifications
+#if defined(__RX__)
+#define CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE                         48000     // 16bit/48kHz is the best quality for Renesas RX
+#else
 #define CFG_TUD_AUDIO_FUNC_1_MAX_SAMPLE_RATE                         96000     // 24bit/96kHz is the best quality for full-speed, high-speed is needed beyond this
+#endif
 #define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX                           1
 #define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX                           2
 
@@ -110,11 +114,19 @@ extern "C" {
 #define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_N_BYTES_PER_SAMPLE_RX          2
 #define CFG_TUD_AUDIO_FUNC_1_FORMAT_1_RESOLUTION_RX                  16
 
+#if defined(__RX__)
+// 8bit in 8bit slots
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX          1
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_TX                  8
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX          1
+#define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX                  8
+#else
 // 24bit in 32bit slots
 #define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_TX          4
 #define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_TX                  24
 #define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_N_BYTES_PER_SAMPLE_RX          4
 #define CFG_TUD_AUDIO_FUNC_1_FORMAT_2_RESOLUTION_RX                  24
+#endif
 
 // EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
 #define CFG_TUD_AUDIO_ENABLE_EP_IN                1