Commit Graph

9 Commits

Author SHA1 Message Date
Darian Leung
de6bf09f40 usb: Fix how the HCD handles sudden disconnection
This commit fixes how the USB Host HCD handles sudden disconnections.

Bugs:
- HW channels remain active when the port suddenly disconnects, and
previously the channel would be disabled by setting the disabled bit,
then waiting for a disabled interrupt. However, ISOC channels do not
generate the disabled interrupt when the port is invalid, thus leading
to tasks getting indefinitely blocked in hcd_pipe_command().

Fix:
On a sudden disconnection, forcibly treat all channels as halted even
if their HCCHAR.ChEna bit is still set. We do a soft reset after a port
error anyways, so the channels will eventually be reset.

Closes https://github.com/espressif/esp-idf/issues/7505
2021-11-11 16:25:01 +08:00
Darian Leung
accbaee57c Add USB Host Library
This commit adds the preliminary version of the USB Host Library. This commit contains:

- USBH (USB Host Driver)
- Hub Driver that only supports a single device and device enumeration
- USB Host Library (asychronous API)
- Test cases for USB Host Library asychronous API

The following changes were made to the existing HCD:
- Removed HCD_PIPE_STATE_INVALID. Pipes are no longer invalidated
- Changed pipe commands to halt, flush, and clear. Pipes need to be manually
  halted, flush, and cleared.
- Halting and flushing a pipe will execute the pipe callback if it causes a
  HCD_PIPE_EVENT_URB_DONE event
2021-08-24 23:28:00 +08:00
Darian Leung
d37451f2c7 USB HCD: Add pipe persistence feature
This commit adds a pipe persistence feature allowing HCD pipes
to survive a port reset.
2021-06-29 21:09:27 +08:00
Darian Leung
5f9692ae97 HCD: Fix multiple bugs
This commit fixes the following bugs with the HCD and USB Host HAL

- Make the setting to periodic frame list and scheduling to occur after
  a reset command
- All port errors states should put the port into the HCD_PORT_STATE_RECOVERY
  state.
- Fixed incorrect return type of hcd_port_command() function
2021-06-15 18:52:56 +08:00
Darian Leung
18f9dabce1 USB: Change IRP to URBs
This commit changes the IRP (I/O Request Packet) structure to
the URB (USB Request Block) in order to represent USB transfers
in the host stack. The new URB strcuture:

- Add extra safety with const fields
- Allows each layer of the stack to add their own overhead variables

The HCD layer API and tests have been updated to use this new URB structure
2021-06-09 22:09:46 +08:00
Darian Leung
7f42104893 HCD: Add support for interrupt and isochronous pipes
This commit adds support for interrupt and isochronous pipes to the HCD:
- HCD now internally uses double buffering
- Added test cases for interrupt and isochronous transfers
- Reorganized test cases for each transfer type
- Updated API comments and maintainer's notes

Some minor bugs were also fixed
2021-05-26 22:55:12 +08:00
Darian Leung
738af3fd38 USB HCD uses IRPs directly for transfer
This commit updates the HCD so that transfer requests are no longer used.
The USB IRP object is updated so that the it can be directly passed to the HCD
to start a transfer. HCD API, tests, and documentation updated accordingly.
2021-04-25 21:52:07 +08:00
Darian Leung
2906a25988 Separate USB HAL and common USB types
This commit separates out the common USB types used throughout most of the stack into its
own header file inside the USB component. The types used in the USB HAL are now exclusive
to the HAL.
2021-04-22 19:24:48 +08:00
Darian Leung
424e1e1886 Add USB HCD
This commit adds the USB HCD (Host Controller Driver) and accompanying unit tests.
2021-02-26 23:13:42 +08:00