move class files
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hathach
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tinyusb/class/cdc/cdc_device.c
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222
tinyusb/class/cdc/cdc_device.c
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/**************************************************************************/
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/*!
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@file cdc_device.c
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@author hathach (tinyusb.org)
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2013, hathach (tinyusb.org)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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This file is part of the tinyusb stack.
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*/
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/**************************************************************************/
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#include "tusb_option.h"
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#if (MODE_DEVICE_SUPPORTED && TUSB_CFG_DEVICE_CDC)
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#define _TINY_USB_SOURCE_FILE_
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//--------------------------------------------------------------------+
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// INCLUDE
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//--------------------------------------------------------------------+
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#include "common/common.h"
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#include "cdc_device.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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TUSB_CFG_ATTR_USBRAM STATIC_VAR cdc_line_coding_t cdcd_line_coding[CONTROLLER_DEVICE_NUMBER];
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typedef struct {
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uint8_t interface_number;
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cdc_acm_capability_t acm_capability;
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endpoint_handle_t edpt_hdl[3]; // notification, data in, data out
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}cdcd_data_t;
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//--------------------------------------------------------------------+
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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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STATIC_VAR cdcd_data_t cdcd_data[CONTROLLER_DEVICE_NUMBER];
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static tusb_error_t cdcd_xfer(uint8_t coreid, cdc_pipeid_t pipeid, void * p_buffer, uint32_t length, bool is_notify)
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{
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ASSERT(tud_mounted(coreid), TUSB_ERROR_USBD_DEVICE_NOT_CONFIGURED);
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cdcd_data_t* p_cdc = &cdcd_data[coreid];
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ASSERT_FALSE ( dcd_pipe_is_busy(p_cdc->edpt_hdl[pipeid]), TUSB_ERROR_INTERFACE_IS_BUSY);
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ASSERT_STATUS( hal_dcd_pipe_xfer(p_cdc->edpt_hdl[pipeid], p_buffer, length, is_notify) );
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return TUSB_ERROR_NONE;
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}
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//--------------------------------------------------------------------+
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// APPLICATION API (Parameters requires validation)
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//--------------------------------------------------------------------+
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bool tud_cdc_busy(uint8_t coreid, cdc_pipeid_t pipeid)
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{
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return dcd_pipe_is_busy( cdcd_data[coreid].edpt_hdl[pipeid] );
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}
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tusb_error_t tud_cdc_receive(uint8_t coreid, void * p_buffer, uint32_t length, bool is_notify)
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{
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return cdcd_xfer(coreid, CDC_PIPE_DATA_OUT, p_buffer, length, is_notify);
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}
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tusb_error_t tud_cdc_send(uint8_t coreid, void * p_data, uint32_t length, bool is_notify)
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{
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return cdcd_xfer(coreid, CDC_PIPE_DATA_IN, p_data, length, is_notify);
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}
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//--------------------------------------------------------------------+
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// USBD-CLASS API
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//--------------------------------------------------------------------+
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void cdcd_init(void)
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{
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memclr_(cdcd_data, sizeof(cdcd_data_t)*CONTROLLER_DEVICE_NUMBER);
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// default line coding is : stop bit = 1, parity = none, data bits = 8
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memclr_(cdcd_line_coding, sizeof(cdc_line_coding_t)*CONTROLLER_DEVICE_NUMBER);
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for(uint8_t i=0; i<CONTROLLER_DEVICE_NUMBER; i++) cdcd_line_coding[i].data_bits = 8;
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}
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tusb_error_t cdcd_open(uint8_t coreid, tusb_descriptor_interface_t const * p_interface_desc, uint16_t *p_length)
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{
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if ( CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL != p_interface_desc->bInterfaceSubClass) return TUSB_ERROR_CDC_UNSUPPORTED_SUBCLASS;
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if ( !(is_in_range(CDC_COMM_PROTOCOL_ATCOMMAND, p_interface_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA) ||
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0xff == p_interface_desc->bInterfaceProtocol) )
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{
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return TUSB_ERROR_CDC_UNSUPPORTED_PROTOCOL;
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}
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uint8_t const * p_desc = descriptor_next ( (uint8_t const *) p_interface_desc );
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cdcd_data_t * p_cdc = &cdcd_data[coreid];
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//------------- Communication Interface -------------//
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(*p_length) = sizeof(tusb_descriptor_interface_t);
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while( TUSB_DESC_TYPE_INTERFACE_CLASS_SPECIFIC == p_desc[DESCRIPTOR_OFFSET_TYPE] )
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{ // Communication Functional Descriptors
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if ( CDC_FUNC_DESC_ABSTRACT_CONTROL_MANAGEMENT == cdc_functional_desc_typeof(p_desc) )
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{ // save ACM bmCapabilities
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p_cdc->acm_capability = ((cdc_desc_func_abstract_control_management_t const *) p_desc)->bmCapabilities;
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}
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(*p_length) += p_desc[DESCRIPTOR_OFFSET_LENGTH];
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p_desc = descriptor_next(p_desc);
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}
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if ( TUSB_DESC_TYPE_ENDPOINT == p_desc[DESCRIPTOR_OFFSET_TYPE])
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{ // notification endpoint if any
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VERIFY( hal_dcd_pipe_open(coreid, (tusb_descriptor_endpoint_t const *) p_desc, &p_cdc->edpt_hdl[CDC_PIPE_NOTIFICATION]), TUSB_ERROR_DCD_OPEN_PIPE_FAILED);
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(*p_length) += p_desc[DESCRIPTOR_OFFSET_LENGTH];
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p_desc = descriptor_next(p_desc);
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}
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//------------- Data Interface (if any) -------------//
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if ( (TUSB_DESC_TYPE_INTERFACE == p_desc[DESCRIPTOR_OFFSET_TYPE]) &&
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(TUSB_CLASS_CDC_DATA == ((tusb_descriptor_interface_t const *) p_desc)->bInterfaceClass) )
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{
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(*p_length) += p_desc[DESCRIPTOR_OFFSET_LENGTH];
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p_desc = descriptor_next(p_desc);
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// data endpoints expected to be in pairs
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for(uint32_t i=0; i<2; i++)
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{
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tusb_descriptor_endpoint_t const *p_endpoint = (tusb_descriptor_endpoint_t const *) p_desc;
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ASSERT_INT(TUSB_DESC_TYPE_ENDPOINT, p_endpoint->bDescriptorType, TUSB_ERROR_DESCRIPTOR_CORRUPTED);
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ASSERT_INT(TUSB_XFER_BULK, p_endpoint->bmAttributes.xfer, TUSB_ERROR_DESCRIPTOR_CORRUPTED);
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endpoint_handle_t * p_edpt_hdl = ( p_endpoint->bEndpointAddress & TUSB_DIR_DEV_TO_HOST_MASK ) ?
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&p_cdc->edpt_hdl[CDC_PIPE_DATA_IN] : &p_cdc->edpt_hdl[CDC_PIPE_DATA_OUT] ;
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VERIFY( hal_dcd_pipe_open(coreid, p_endpoint, p_edpt_hdl), TUSB_ERROR_DCD_OPEN_PIPE_FAILED);
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(*p_length) += p_desc[DESCRIPTOR_OFFSET_LENGTH];
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p_desc = descriptor_next( p_desc );
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}
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}
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p_cdc->interface_number = p_interface_desc->bInterfaceNumber;
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return TUSB_ERROR_NONE;
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}
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void cdcd_close(uint8_t coreid)
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{
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// no need to close opened pipe, dcd bus reset will put controller's endpoints to default state
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memclr_(&cdcd_data[coreid], sizeof(cdcd_data_t));
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}
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tusb_error_t cdcd_control_request_subtask(uint8_t coreid, tusb_control_request_t const * p_request)
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{
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//------------- Class Specific Request -------------//
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if (p_request->bmRequestType_bit.type != TUSB_REQUEST_TYPE_CLASS) return TUSB_ERROR_DCD_CONTROL_REQUEST_NOT_SUPPORT;
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switch(p_request->bRequest)
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{
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case CDC_REQUEST_GET_LINE_CODING:
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hal_dcd_control_xfer(coreid, (tusb_direction_t) p_request->bmRequestType_bit.direction,
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(uint8_t*) &cdcd_line_coding[coreid], min16_of(sizeof(cdc_line_coding_t), p_request->wLength), false );
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break;
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case CDC_REQUEST_SET_LINE_CODING:
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hal_dcd_control_xfer(coreid, (tusb_direction_t) p_request->bmRequestType_bit.direction,
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(uint8_t*) &cdcd_line_coding[coreid], min16_of(sizeof(cdc_line_coding_t), p_request->wLength), false );
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// TODO notify application on xfer completea
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break;
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case CDC_REQUEST_SET_CONTROL_LINE_STATE: // TODO extract DTE present
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break;
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default: return TUSB_ERROR_DCD_CONTROL_REQUEST_NOT_SUPPORT;
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}
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return TUSB_ERROR_NONE;
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}
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tusb_error_t cdcd_xfer_cb(endpoint_handle_t edpt_hdl, tusb_event_t event, uint32_t xferred_bytes)
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{
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cdcd_data_t const * p_cdc = &cdcd_data[edpt_hdl.coreid];
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for(cdc_pipeid_t pipeid=CDC_PIPE_NOTIFICATION; pipeid < CDC_PIPE_ERROR; pipeid++ )
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{
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if ( endpointhandle_is_equal(edpt_hdl, p_cdc->edpt_hdl[pipeid]) )
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{
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tud_cdc_xfer_cb(edpt_hdl.coreid, event, pipeid, xferred_bytes);
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break;
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}
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}
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return TUSB_ERROR_NONE;
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}
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#endif
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