| Message ID | 20240529033038.28458-1-chris.lu@mediatek.com |
|---|---|
| Headers | show |
| Series | Bluetooth: btusb: MediaTek ISO data transmission support | expand |
Hi, On Tue, May 28, 2024 at 11:30 PM Chris Lu <chris.lu@mediatek.com> wrote: > > Since SIG hasn't clearly defined the specification about ISO data over USB > transmission yet, MediaTek adopts a method by adding an additional interrupt > endpoint for ISO data transmission which is different from current way > on Bluetooth upstream driver using existed bulk. Interrupt endpoint has > guaranteed bandwidth, sufficient max data length for LE audio packet and > support error checking. These characteristics are similar to the use of ISO data. > > Chris Lu (3): > Bluetooth: net: add hci_iso_hdr function for iso data > Bluetooth: btmtk: add macro to get/set/clear MediaTek defined flags > Bluetooth: btusb: mediatek: add MediaTek ISO data transmission > function > > drivers/bluetooth/btmtk.c | 35 +++++ > drivers/bluetooth/btmtk.h | 46 ++++++ > drivers/bluetooth/btusb.c | 293 +++++++++++++++++++++++++++++++++++- > include/net/bluetooth/hci.h | 5 + > 4 files changed, 378 insertions(+), 1 deletion(-) This probably needs to be handled in btmtk.c though, since it is not standard we shall avoid having vendor specific transports like this in btusb.c
Since SIG hasn't clearly defined the specification about ISO data over USB transmission yet, MediaTek adopts a method by adding an additional interrupt endpoint for ISO data transmission which is different from current way on Bluetooth upstream driver using existed bulk. Interrupt endpoint has guaranteed bandwidth, sufficient max data length for LE audio packet and support error checking. These characteristics are similar to the use of ISO data. Chris Lu (3): Bluetooth: net: add hci_iso_hdr function for iso data Bluetooth: btmtk: add macro to get/set/clear MediaTek defined flags Bluetooth: btusb: mediatek: add MediaTek ISO data transmission function drivers/bluetooth/btmtk.c | 35 +++++ drivers/bluetooth/btmtk.h | 46 ++++++ drivers/bluetooth/btusb.c | 293 +++++++++++++++++++++++++++++++++++- include/net/bluetooth/hci.h | 5 + 4 files changed, 378 insertions(+), 1 deletion(-)