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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Sylvain Munaut <[email protected]>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#include "tusb_option.h"
#if (TUSB_OPT_DEVICE_ENABLED && CFG_TUD_DFU_RT)
#include "dfu_rt_device.h"
#include "device/usbd_pvt.h"
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF
//--------------------------------------------------------------------+
typedef enum {
DFU_REQUEST_DETACH = 0,
DFU_REQUEST_DNLOAD = 1,
DFU_REQUEST_UPLOAD = 2,
DFU_REQUEST_GETSTATUS = 3,
DFU_REQUEST_CLRSTATUS = 4,
DFU_REQUEST_GETSTATE = 5,
DFU_REQUEST_ABORT = 6,
} dfu_requests_t;
typedef struct TU_ATTR_PACKED
{
uint8_t status;
uint8_t poll_timeout[3];
uint8_t state;
uint8_t istring;
} dfu_status_t;
//--------------------------------------------------------------------+
// USBD Driver API
//--------------------------------------------------------------------+
void dfu_rtd_init(void)
{
}
void dfu_rtd_reset(uint8_t rhport)
{
(void) rhport;
}
uint16_t dfu_rtd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len)
{
(void) rhport;
(void) max_len;
// Ensure this is DFU Runtime
TU_VERIFY(itf_desc->bInterfaceSubClass == TUD_DFU_APP_SUBCLASS &&
itf_desc->bInterfaceProtocol == DFU_PROTOCOL_RT, 0);
uint8_t const * p_desc = tu_desc_next( itf_desc );
uint16_t drv_len = sizeof(tusb_desc_interface_t);
if ( TUSB_DESC_FUNCTIONAL == tu_desc_type(p_desc) )
{
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);
}
return drv_len;
}
bool dfu_rtd_control_complete(uint8_t rhport, tusb_control_request_t const * request)
{
(void) rhport;
(void) request;
// nothing to do
return true;
}
bool dfu_rtd_control_request(uint8_t rhport, tusb_control_request_t const * request)
{
TU_VERIFY(request->bmRequestType_bit.recipient == TUSB_REQ_RCPT_INTERFACE);
// dfu-util will try to claim the interface with SET_INTERFACE request before sending DFU request
if ( TUSB_REQ_TYPE_STANDARD == request->bmRequestType_bit.type &&
TUSB_REQ_SET_INTERFACE == request->bRequest )
{
tud_control_status(rhport, request);
return true;
}
// Handle class request only from here
TU_VERIFY(request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS);
switch ( request->bRequest )
{
case DFU_REQUEST_DETACH:
tud_control_status(rhport, request);
tud_dfu_rt_reboot_to_dfu();
break;
case DFU_REQUEST_GETSTATUS:
{
// status = OK, poll timeout = 0, state = app idle, istring = 0
uint8_t status_response[6] = { 0, 0, 0, 0, 0, 0 };
tud_control_xfer(rhport, request, status_response, sizeof(status_response));
}
break;
default: return false; // stall unsupported request
}
return true;
}
bool dfu_rtd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)
{
(void) rhport;
(void) ep_addr;
(void) result;
(void) xferred_bytes;
return true;
}
#endif
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