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audio_device: Update explicit feedback support

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Feedback can be specified by the user code and will be
sent at feedback endpoint specified interval.
This commit is contained in:
Jerzy Kasenberg
2020-09-14 11:28:05 +02:00
parent 6b52330969
commit 2ace98e943
3 changed files with 68 additions and 18 deletions
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5
src/device/usbd.h
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@@ -377,6 +377,11 @@ TU_ATTR_WEAK bool tud_vendor_control_complete_cb(uint8_t rhport, tusb_control_re
#define TUD_AUDIO_DESC_CS_AS_ISO_EP(_attr, _ctrl, _lockdelayunit, _lockdelay) \
TUD_AUDIO_DESC_CS_AS_ISO_EP_LEN, TUSB_DESC_CS_ENDPOINT, AUDIO_CS_EP_SUBTYPE_GENERAL, _attr, _ctrl, _lockdelayunit, U16_TO_U8S_LE(_lockdelay)
/* Standard AS Isochronous Feedback Endpoint Descriptor(4.10.2.1) */
#define TUD_AUDIO_DESC_STD_AS_ISO_FB_EP_LEN 7
#define TUD_AUDIO_DESC_STD_AS_ISO_FB_EP(_ep, _interval) \
TUD_AUDIO_DESC_STD_AS_ISO_FB_EP_LEN, TUSB_DESC_ENDPOINT, _ep, (TUSB_XFER_ISOCHRONOUS | TUSB_ISO_EP_ATT_NO_SYNC | TUSB_ISO_EP_ATT_EXPLICIT_FB), U16_TO_U8S_LE(4), _interval
// AUDIO simple descriptor (UAC2) for 1 microphone input
// - 1 Input Terminal, 1 Feature Unit (Mute and Volume Control), 1 Output Terminal, 1 Clock Source