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authorsakumisu <[email protected]>2024-09-30 16:46:58 +0800
committersakumisu <[email protected]>2024-09-30 16:46:58 +0800
commit525884a00feee70e0395673774fd3085133dd9fe (patch)
tree67615e7841ad329d9d797356679ca95bd42a715d /class
parent2c524456399d0664354414d971687396fb214f2b (diff)
feat(class/audio/usb_audio): add audio altsetting desc init macros
Diffstat (limited to 'class')
-rw-r--r--class/audio/usb_audio.h123
1 files changed, 115 insertions, 8 deletions
diff --git a/class/audio/usb_audio.h b/class/audio/usb_audio.h
index 2b3cdaff..1aced20f 100644
--- a/class/audio/usb_audio.h
+++ b/class/audio/usb_audio.h
@@ -132,11 +132,11 @@
#define AUDIO_FORMAT_ALAW 0x0004
#define AUDIO_FORMAT_MULAW 0x0005
-#define AUDIO_V2_FORMAT_PCM 0x00000001
-#define AUDIO_V2_FORMAT_PCM8 0x00000002
-#define AUDIO_V2_FORMAT_IEEE_FLOAT 0x00000004
-#define AUDIO_V2_FORMAT_ALAW 0x00000008
-#define AUDIO_V2_FORMAT_MULAW 0x00000010
+#define AUDIO_V2_FORMAT_PCM 0x00000001
+#define AUDIO_V2_FORMAT_PCM8 0x00000002
+#define AUDIO_V2_FORMAT_IEEE_FLOAT 0x00000004
+#define AUDIO_V2_FORMAT_ALAW 0x00000008
+#define AUDIO_V2_FORMAT_MULAW 0x00000010
/* bmChannelConfig: a bitmap field that indicates which spatial locations
* are occupied by the channels present in the cluster. The bit allocations
@@ -812,6 +812,60 @@ struct audio_cs_ep_ep_general_descriptor {
#define AUDIO_AS_DESCRIPTOR_INIT_LEN(n) (0x09 + 0x09 + 0x07 + 0x08 + 3 * n + 0x09 + 0x07)
+#define AUDIO_AS_ALTSETTING_DESCRIPTOR_INIT(bInterfaceNumber, bAlternateSetting, bTerminalLink, bNrChannels, bSubFrameSize, bBitResolution, bEndpointAddress, bmAttributes, wMaxPacketSize, bInterval, ...) \
+ 0x09, /* bLength */ \
+ USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType */ \
+ bInterfaceNumber, /* bInterfaceNumber */ \
+ bAlternateSetting, /* bAlternateSetting */ \
+ 0x01, /* bNumEndpoints */ \
+ USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */ \
+ AUDIO_SUBCLASS_AUDIOSTREAMING, /* bInterfaceSubClass */ \
+ AUDIO_PROTOCOL_UNDEFINED, /* bInterfaceProtocol */ \
+ 0x00, /* iInterface */ \
+ 0x07, /* bLength */ \
+ AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */ \
+ AUDIO_STREAMING_GENERAL, /* bDescriptorSubtype */ \
+ bTerminalLink, /* bTerminalLink : Unit ID of the Output Terminal*/ \
+ 0x01, /* bDelay */ \
+ WBVAL(AUDIO_FORMAT_PCM), /* wFormatTag : AUDIO_FORMAT_PCM */ \
+ 0x08 + PP_NARG(__VA_ARGS__), /* bLength */ \
+ AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */ \
+ AUDIO_STREAMING_FORMAT_TYPE, /* bDescriptorSubtype */ \
+ AUDIO_FORMAT_TYPE_I, /* bFormatType */ \
+ bNrChannels, /* bNrChannels */ \
+ bSubFrameSize, /* bSubFrameSize : Bytes per audio subframe */ \
+ bBitResolution, /* bBitResolution : bits per sample */ \
+ (PP_NARG(__VA_ARGS__)/3), /* bSamFreqType : only one frequency supported */ \
+ __VA_ARGS__, /* tSamFreq : Audio sampling frequency coded on 3 bytes */ \
+ 0x09, /* bLength */ \
+ USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType */ \
+ bEndpointAddress, /* bEndpointAddress : IN endpoint 1 */ \
+ bmAttributes, /* bmAttributes */ \
+ WBVAL(wMaxPacketSize), /* wMaxPacketSize */ \
+ bInterval, /* bInterval : one packet per frame */ \
+ 0x00, /* bRefresh */ \
+ 0x00, /* bSynchAddress */ \
+ 0x07, /* bLength */ \
+ AUDIO_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType */ \
+ AUDIO_ENDPOINT_GENERAL, /* bDescriptor */ \
+ AUDIO_EP_CONTROL_SAMPLING_FEQ, /* bmAttributes AUDIO_SAMPLING_FREQ_CONTROL */ \
+ 0x00, /* bLockDelayUnits */ \
+ 0x00, /* wLockDelay */ \
+ 0x00
+
+#define AUDIO_AS_ALTSETTING_DESCRIPTOR_INIT_LEN(n) (0x09 + 0x07 + 0x08 + 3 * n + 0x09 + 0x07)
+
+#define AUDIO_AS_ALTSETTING0_DESCRIPTOR_INIT(bInterfaceNumber) \
+ 0x09, /* bLength */ \
+ USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType */ \
+ bInterfaceNumber, /* bInterfaceNumber */ \
+ 0x00, /* bAlternateSetting */ \
+ 0x01, /* bNumEndpoints */ \
+ USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */ \
+ AUDIO_SUBCLASS_AUDIOSTREAMING, /* bInterfaceSubClass */ \
+ AUDIO_PROTOCOL_UNDEFINED, /* bInterfaceProtocol */ \
+ 0x00 /* iInterface */
+
#define AUDIO_MS_STANDARD_DESCRIPTOR_INIT(bInterfaceNumber, bNumEndpoints) \
0x09, /* bLength */ \
USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType */ \
@@ -1096,6 +1150,58 @@ struct audio_v2_control_range3_param_block {
0x00, /* wLockDelay */ \
0x00
+#define AUDIO_V2_AS_ALTSETTING_DESCRIPTOR_INIT(bInterfaceNumber, bAlternateSetting, bTerminalLink, bNrChannels, bmChannelConfig, bSubslotSize, bBitResolution, bEndpointAddress, bmAttributes, wMaxPacketSize, bInterval) \
+ 0x09, /* bLength */ \
+ USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType */ \
+ bInterfaceNumber, /* bInterfaceNumber */ \
+ bAlternateSetting, /* bAlternateSetting */ \
+ 0x01, /* bNumEndpoints */ \
+ USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */ \
+ AUDIO_SUBCLASS_AUDIOSTREAMING, /* bInterfaceSubClass */ \
+ AUDIO_PROTOCOLv20, /* bInterfaceProtocol */ \
+ 0x00, /* iInterface */ \
+ 0x10, /* bLength */ \
+ AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */ \
+ AUDIO_STREAMING_GENERAL, /* bDescriptorSubtype */ \
+ bTerminalLink, /* bTerminalLink : Unit ID of the Output or Input Terminal*/ \
+ 0x00, /* bmControls */ \
+ AUDIO_FORMAT_TYPE_I, /* bFormatType : AUDIO_FORMAT_TYPE_I */ \
+ DBVAL(AUDIO_V2_FORMAT_PCM), /* bmFormats PCM */ \
+ bNrChannels, /* bNrChannels */ \
+ DBVAL(bmChannelConfig), /* bmChannelConfig */ \
+ 0x00, /* iChannelNames */ \
+ 0x06, /* bLength */ \
+ AUDIO_INTERFACE_DESCRIPTOR_TYPE, /* bDescriptorType */ \
+ AUDIO_STREAMING_FORMAT_TYPE, /* bDescriptorSubtype */ \
+ AUDIO_FORMAT_TYPE_I, /* bFormatType */ \
+ bSubslotSize, /* bSubslotSize */ \
+ bBitResolution, /* bBitResolution */ \
+ 0x07, /* bLength */ \
+ USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType */ \
+ bEndpointAddress, /* bEndpointAddress 3 out endpoint for Audio */ \
+ bmAttributes, /* bmAttributes */ \
+ WBVAL(wMaxPacketSize), /* XXXX wMaxPacketSize in Bytes (SampleRate * SlotByteSize * NumChannels) */ \
+ bInterval, /* bInterval */ \
+ 0x08, /* bLength */ \
+ AUDIO_ENDPOINT_DESCRIPTOR_TYPE, /* bDescriptorType */ \
+ AUDIO_ENDPOINT_GENERAL, /* bDescriptor */ \
+ 0x00, /* bmAttributes */ \
+ 0x00, /* bmControls */ \
+ 0x00, /* bLockDelayUnits */ \
+ 0x00, /* wLockDelay */ \
+ 0x00
+
+#define AUDIO_V2_AS_ALTSETTING0_DESCRIPTOR_INIT(bInterfaceNumber) \
+ 0x09, /* bLength */ \
+ USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType */ \
+ bInterfaceNumber, /* bInterfaceNumber */ \
+ 0x00, /* bAlternateSetting */ \
+ 0x01, /* bNumEndpoints */ \
+ USB_DEVICE_CLASS_AUDIO, /* bInterfaceClass */ \
+ AUDIO_SUBCLASS_AUDIOSTREAMING, /* bInterfaceSubClass */ \
+ AUDIO_PROTOCOLv20, /* bInterfaceProtocol */ \
+ 0x00 /* iInterface */
+
#define AUDIO_V2_AS_FEEDBACK_DESCRIPTOR_INIT(bInterfaceNumber, bTerminalLink, bNrChannels, bmChannelConfig, bSubslotSize, bBitResolution, bEndpointAddress, wMaxPacketSize, bInterval, bFeedbackEndpointAddress) \
0x09, /* bLength */ \
USB_DESCRIPTOR_TYPE_INTERFACE, /* bDescriptorType */ \
@@ -1150,12 +1256,13 @@ struct audio_v2_control_range3_param_block {
bFeedbackEndpointAddress, /* bFeedbackEndpointAddress Revise Dir to bEndpointAddress */ \
0x11, /* bmAttributes: TransferType=Isochronous SyncType=None EndpointType=Feedback */ \
WBVAL(4), /* XXXX wMaxPacketSize in Bytes */ \
- bInterval /* bInterval */ \
+ bInterval /* bInterval */
// clang-format on
-#define AUDIO_V2_AS_DESCRIPTOR_INIT_LEN (0x09 + 0x09 + 0x10 + 0x06 + 0x07 + 0x08)
-#define AUDIO_V2_AS_FEEDBACK_DESCRIPTOR_INIT_LEN (0x09 + 0x09 + 0x10 + 0x06 + 0x07 + 0x08 + 0x07)
+#define AUDIO_V2_AS_DESCRIPTOR_INIT_LEN (0x09 + 0x09 + 0x10 + 0x06 + 0x07 + 0x08)
+#define AUDIO_V2_AS_ALTSETTING_DESCRIPTOR_INIT_LEN (0x09 + 0x10 + 0x06 + 0x07 + 0x08)
+#define AUDIO_V2_AS_FEEDBACK_DESCRIPTOR_INIT_LEN (0x09 + 0x09 + 0x10 + 0x06 + 0x07 + 0x08 + 0x07)
#define AUDIO_SAMPLE_FREQ_NUM(num) (uint8_t)(num), (uint8_t)((num >> 8))
#define AUDIO_SAMPLE_FREQ_3B(frq) (uint8_t)(frq), (uint8_t)((frq >> 8)), (uint8_t)((frq >> 16))
generated by cgit v1.3.1 (git 2.54.0) at 2026-09-02 22:45:47 +0000