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UHI for Vendor Class

Common APIs used by high level application to use this USB host class.

This Vendor Class implementation supports one endpoint for all endpoint types on all directions: Control IN, control OUT, interrupt IN, interrupt OUT, bulk IN, bulk OUT, isochronous IN, isochronous OUT.

This implementation is an example and can be a base to create another Vendor Class which support more endpoint as two bulk IN endpoints.

See Quick start guide for USB host vendor module (UHI vendor).

Modules

 
 Quick Start Guide(s)
 In this section you can find a list of all Quick Start guides related to the UHI for Vendor Class.
 
 Implementation of UHI Vendor
 Class internal implementation.
 
 Interface with USB Host Core (UHC)
 Define and functions required by UHC.
 

Functions

bool uhi_vendor_bulk_in_run (uint8_t *buf, iram_size_t buf_size, uhd_callback_trans_t callback)
 Start a transfer on bulk IN. More...
 
bool uhi_vendor_bulk_is_available (void)
 Check if a transfer on BULK is possible. More...
 
bool uhi_vendor_bulk_out_run (uint8_t *buf, iram_size_t buf_size, uhd_callback_trans_t callback)
 Start a transfer on bulk OUT. More...
 
bool uhi_vendor_control_in_run (uint8_t *buf, iram_size_t buf_size, uhd_callback_setup_end_t callback)
 Start a transfer on control IN. More...
 
bool uhi_vendor_control_out_run (uint8_t *buf, iram_size_t buf_size, uhd_callback_setup_end_t callback)
 Start a transfer on control OUT. More...
 
bool uhi_vendor_int_in_run (uint8_t *buf, iram_size_t buf_size, uhd_callback_trans_t callback)
 Start a transfer on interrupt IN. More...
 
bool uhi_vendor_int_is_available (void)
 Check if a transfer on INTERRUPT is possible. More...
 
bool uhi_vendor_int_out_run (uint8_t *buf, iram_size_t buf_size, uhd_callback_trans_t callback)
 Start a transfer on interrupt OUT. More...
 
bool uhi_vendor_iso_in_run (uint8_t *buf, iram_size_t buf_size, uhd_callback_trans_t callback)
 Start a transfer on ISO IN. More...
 
bool uhi_vendor_iso_is_available (void)
 Check if a transfer on ISO is possible. More...
 
bool uhi_vendor_iso_out_run (uint8_t *buf, iram_size_t buf_size, uhd_callback_trans_t callback)
 Start a transfer on ISO OUT. More...
 

bool uhi_vendor_bulk_in_run ( uint8_t *  buf,
iram_size_t  buf_size,
uhd_callback_trans_t  callback 
)

Start a transfer on bulk IN.

When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered.

Parameters
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Returns
1 if function was successfully done, otherwise 0.

References uhc_device_t::address, uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_bulk_in, uhd_ep_run(), uhi_vendor_bulk_is_available(), and UHI_VENDOR_TIMEOUT.

bool uhi_vendor_bulk_is_available ( void  )

Check if a transfer on BULK is possible.

Returns
1 if possible, otherwise 0.

References uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_bulk_in, uhi_vendor_dev_t::ep_bulk_out, and NULL.

Referenced by uhi_vendor_bulk_in_run(), and uhi_vendor_bulk_out_run().

bool uhi_vendor_bulk_out_run ( uint8_t *  buf,
iram_size_t  buf_size,
uhd_callback_trans_t  callback 
)

Start a transfer on bulk OUT.

When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered.

Parameters
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Returns
1 if function was successfully done, otherwise 0.

References uhc_device_t::address, uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_bulk_out, uhd_ep_run(), uhi_vendor_bulk_is_available(), and UHI_VENDOR_TIMEOUT.

bool uhi_vendor_control_in_run ( uint8_t *  buf,
iram_size_t  buf_size,
uhd_callback_setup_end_t  callback 
)

Start a transfer on control IN.

When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered.

Parameters
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Returns
1 if function was successfully done, otherwise 0.

References uhc_device_t::address, usb_setup_req_t::bmRequestType, usb_setup_req_t::bRequest, uhi_vendor_dev_t::dev, NULL, uhd_setup_request(), USB_REQ_DIR_IN, USB_REQ_RECIP_INTERFACE, USB_REQ_TYPE_VENDOR, usb_setup_req_t::wIndex, usb_setup_req_t::wLength, and usb_setup_req_t::wValue.

bool uhi_vendor_control_out_run ( uint8_t *  buf,
iram_size_t  buf_size,
uhd_callback_setup_end_t  callback 
)

Start a transfer on control OUT.

When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered.

Parameters
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Returns
1 if function was successfully done, otherwise 0.

References uhc_device_t::address, usb_setup_req_t::bmRequestType, usb_setup_req_t::bRequest, uhi_vendor_dev_t::dev, NULL, uhd_setup_request(), USB_REQ_RECIP_INTERFACE, USB_REQ_TYPE_VENDOR, usb_setup_req_t::wIndex, usb_setup_req_t::wLength, and usb_setup_req_t::wValue.

bool uhi_vendor_int_in_run ( uint8_t *  buf,
iram_size_t  buf_size,
uhd_callback_trans_t  callback 
)

Start a transfer on interrupt IN.

When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered.

Parameters
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Returns
1 if function was successfully done, otherwise 0.

References uhc_device_t::address, uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_int_in, uhd_ep_run(), uhi_vendor_int_is_available(), and UHI_VENDOR_TIMEOUT.

bool uhi_vendor_int_is_available ( void  )

Check if a transfer on INTERRUPT is possible.

Returns
1 if possible, otherwise 0.

References uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_int_in, uhi_vendor_dev_t::ep_int_out, and NULL.

Referenced by uhi_vendor_int_in_run(), and uhi_vendor_int_out_run().

bool uhi_vendor_int_out_run ( uint8_t *  buf,
iram_size_t  buf_size,
uhd_callback_trans_t  callback 
)

Start a transfer on interrupt OUT.

When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered.

Parameters
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Returns
1 if function was successfully done, otherwise 0.

References uhc_device_t::address, uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_int_out, uhd_ep_run(), uhi_vendor_int_is_available(), and UHI_VENDOR_TIMEOUT.

bool uhi_vendor_iso_in_run ( uint8_t *  buf,
iram_size_t  buf_size,
uhd_callback_trans_t  callback 
)

Start a transfer on ISO IN.

When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered.

Parameters
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Returns
1 if function was successfully done, otherwise 0.

References uhc_device_t::address, uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_iso_in, uhd_ep_run(), uhi_vendor_iso_is_available(), and UHI_VENDOR_TIMEOUT.

bool uhi_vendor_iso_is_available ( void  )

Check if a transfer on ISO is possible.

Returns
1 if possible, otherwise 0.

References uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_iso_in, uhi_vendor_dev_t::ep_iso_out, and NULL.

Referenced by uhi_vendor_iso_in_run(), and uhi_vendor_iso_out_run().

bool uhi_vendor_iso_out_run ( uint8_t *  buf,
iram_size_t  buf_size,
uhd_callback_trans_t  callback 
)

Start a transfer on ISO OUT.

When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered.

Parameters
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Returns
1 if function was successfully done, otherwise 0.

References uhc_device_t::address, uhi_vendor_dev_t::dev, uhi_vendor_dev_t::ep_iso_out, uhd_ep_run(), uhi_vendor_iso_is_available(), and UHI_VENDOR_TIMEOUT.