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/*
* SPDX-FileCopyrightText: Copyright (c) 2019 Ha Thach (tinyusb.org)
* SPDX-License-Identifier: MIT
*
* This file is part of the TinyUSB stack.
*/
#include "tusb_option.h"
#if (CFG_TUH_ENABLED && CFG_TUH_VENDOR)
//--------------------------------------------------------------------+
// INCLUDE
//--------------------------------------------------------------------+
#include "host/usbh.h"
#include "vendor_host.h"
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF
//--------------------------------------------------------------------+
//--------------------------------------------------------------------+
// INTERNAL OBJECT & FUNCTION DECLARATION
//--------------------------------------------------------------------+
custom_interface_info_t custom_interface[CFG_TUH_DEVICE_MAX];
static tusb_error_t cush_validate_paras(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void * p_buffer, uint16_t length)
{
if ( !tusbh_custom_is_mounted(dev_addr, vendor_id, product_id) )
{
return TUSB_ERROR_DEVICE_NOT_READY;
}
TU_ASSERT( p_buffer != NULL && length != 0, TUSB_ERROR_INVALID_PARA);
return TUSB_ERROR_NONE;
}
//--------------------------------------------------------------------+
// APPLICATION API (need to check parameters)
//--------------------------------------------------------------------+
tusb_error_t tusbh_custom_read(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void * p_buffer, uint16_t length)
{
TU_ASSERT_ERR( cush_validate_paras(dev_addr, vendor_id, product_id, p_buffer, length) );
if ( !hcd_pipe_is_idle(custom_interface[dev_addr-1].pipe_in) )
{
return TUSB_ERROR_INTERFACE_IS_BUSY;
}
(void) usbh_edpt_xfer( custom_interface[dev_addr-1].pipe_in, p_buffer, length);
return TUSB_ERROR_NONE;
}
tusb_error_t tusbh_custom_write(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void const * p_data, uint16_t length)
{
TU_ASSERT_ERR( cush_validate_paras(dev_addr, vendor_id, product_id, p_data, length) );
if ( !hcd_pipe_is_idle(custom_interface[dev_addr-1].pipe_out) )
{
return TUSB_ERROR_INTERFACE_IS_BUSY;
}
(void) usbh_edpt_xfer( custom_interface[dev_addr-1].pipe_out, p_data, length);
return TUSB_ERROR_NONE;
}
//--------------------------------------------------------------------+
// USBH-CLASS API
//--------------------------------------------------------------------+
void cush_init(void)
{
tu_memclr(&custom_interface, sizeof(custom_interface_info_t) * CFG_TUH_DEVICE_MAX);
}
tusb_error_t cush_open_subtask(uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length)
{
// FIXME quick hack to test lpc1k custom class with 2 bulk endpoints
uint8_t const *p_desc = (uint8_t const *) p_interface_desc;
p_desc = tu_desc_next(p_desc);
//------------- Bulk Endpoints Descriptor -------------//
for(uint32_t i=0; i<2; i++)
{
tusb_desc_endpoint_t const *p_endpoint = (tusb_desc_endpoint_t const *) p_desc;
TU_ASSERT(TUSB_DESC_ENDPOINT == p_endpoint->bDescriptorType, TUSB_ERROR_INVALID_PARA);
pipe_handle_t * p_pipe_hdl = ( p_endpoint->bEndpointAddress & TUSB_DIR_IN_MASK ) ?
&custom_interface[dev_addr-1].pipe_in : &custom_interface[dev_addr-1].pipe_out;
*p_pipe_hdl = usbh_edpt_open(dev_addr, p_endpoint, TUSB_CLASS_VENDOR_SPECIFIC);
TU_ASSERT ( pipehandle_is_valid(*p_pipe_hdl), TUSB_ERROR_HCD_OPEN_PIPE_FAILED );
p_desc = tu_desc_next(p_desc);
}
(*p_length) = sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
return TUSB_ERROR_NONE;
}
void cush_isr(pipe_handle_t pipe_hdl, xfer_result_t event)
{
}
void cush_close(uint8_t dev_addr)
{
tusb_error_t err1, err2;
custom_interface_info_t * p_interface = &custom_interface[dev_addr-1];
// TODO re-consider to check pipe valid before calling pipe_close
if( pipehandle_is_valid( p_interface->pipe_in ) )
{
err1 = hcd_pipe_close( p_interface->pipe_in );
}
if ( pipehandle_is_valid( p_interface->pipe_out ) )
{
err2 = hcd_pipe_close( p_interface->pipe_out );
}
tu_memclr(p_interface, sizeof(custom_interface_info_t));
TU_ASSERT(err1 == TUSB_ERROR_NONE && err2 == TUSB_ERROR_NONE, (void) 0 );
}
#endif
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