129 lines
4.1 KiB
C
129 lines
4.1 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Sylvain Munaut <tnt@246tNt.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "tusb_option.h"
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#if (CFG_TUD_ENABLED && CFG_TUD_DFU_RUNTIME)
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#include "device/usbd.h"
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#include "device/usbd_pvt.h"
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#include "dfu_rt_device.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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// USBD Driver API
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//--------------------------------------------------------------------+
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void dfu_rtd_init(void)
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{
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}
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void dfu_rtd_reset(uint8_t rhport)
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{
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(void) rhport;
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}
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uint16_t dfu_rtd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len)
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{
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(void) rhport;
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(void) max_len;
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// Ensure this is DFU Runtime
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TU_VERIFY((itf_desc->bInterfaceSubClass == TUD_DFU_APP_SUBCLASS) &&
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(itf_desc->bInterfaceProtocol == DFU_PROTOCOL_RT), 0);
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uint8_t const * p_desc = tu_desc_next( itf_desc );
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uint16_t drv_len = sizeof(tusb_desc_interface_t);
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if ( TUSB_DESC_FUNCTIONAL == tu_desc_type(p_desc) )
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{
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drv_len += tu_desc_len(p_desc);
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p_desc = tu_desc_next(p_desc);
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}
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return drv_len;
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}
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// Invoked when a control transfer occurred on an interface of this class
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// Driver response accordingly to the request and the transfer stage (setup/data/ack)
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// return false to stall control endpoint (e.g unsupported request)
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bool dfu_rtd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t const * request)
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{
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// nothing to do with DATA or ACK stage
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if ( stage != CONTROL_STAGE_SETUP ) return true;
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TU_VERIFY(request->bmRequestType_bit.recipient == TUSB_REQ_RCPT_INTERFACE);
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// dfu-util will try to claim the interface with SET_INTERFACE request before sending DFU request
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if ( TUSB_REQ_TYPE_STANDARD == request->bmRequestType_bit.type &&
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TUSB_REQ_SET_INTERFACE == request->bRequest )
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{
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tud_control_status(rhport, request);
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return true;
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}
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// Handle class request only from here
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TU_VERIFY(request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS);
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switch (request->bRequest)
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{
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case DFU_REQUEST_DETACH:
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{
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TU_LOG2(" DFU RT Request: DETACH\r\n");
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tud_control_status(rhport, request);
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tud_dfu_runtime_reboot_to_dfu_cb();
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}
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break;
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case DFU_REQUEST_GETSTATUS:
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{
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TU_LOG2(" DFU RT Request: GETSTATUS\r\n");
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dfu_status_response_t resp;
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// Status = OK, Poll timeout is ignored during RT, State = APP_IDLE, IString = 0
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memset(&resp, 0x00, sizeof(dfu_status_response_t));
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tud_control_xfer(rhport, request, &resp, sizeof(dfu_status_response_t));
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}
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break;
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default:
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{
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TU_LOG2(" DFU RT Unexpected Request: %d\r\n", request->bRequest);
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return false; // stall unsupported request
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}
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}
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return true;
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}
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#endif
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