From ec4ecfa817d6af9d35cf814d6d8d57e8bf71c605 Mon Sep 17 00:00:00 2001 From: Sylvain Munaut Date: Thu, 24 Oct 2019 00:42:42 +0200 Subject: Add support for DFU Runtime class for devices This is really just a few descriptors and then answering to the request from the host to reboot into DFU mode. That latter part is delegated to the app since this is platform specific. Signed-off-by: Sylvain Munaut --- src/class/dfu/dfu_rt_device.c | 120 ++++++++++++++++++++++++++++++++++++++++++ src/class/dfu/dfu_rt_device.h | 77 +++++++++++++++++++++++++++ src/common/tusb_types.h | 2 + src/device/usbd.c | 14 +++++ src/device/usbd.h | 15 ++++++ src/tusb.h | 4 ++ src/tusb_option.h | 4 ++ 7 files changed, 236 insertions(+) create mode 100644 src/class/dfu/dfu_rt_device.c create mode 100644 src/class/dfu/dfu_rt_device.h (limited to 'src') diff --git a/src/class/dfu/dfu_rt_device.c b/src/class/dfu/dfu_rt_device.c new file mode 100644 index 000000000..59adae7ef --- /dev/null +++ b/src/class/dfu/dfu_rt_device.c @@ -0,0 +1,120 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Sylvain Munaut + * + * 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; + +//--------------------------------------------------------------------+ +// USBD Driver API +//--------------------------------------------------------------------+ +void dfu_rtd_init(void) +{ +} + +void dfu_rtd_reset(uint8_t rhport) +{ + (void) rhport; +} + +bool dfu_rtd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length) +{ + (void) rhport; + + // Ensure this is DFU Runtime + TU_ASSERT(itf_desc->bInterfaceSubClass == TUD_DFU_APP_SUBCLASS); + TU_ASSERT(itf_desc->bInterfaceProtocol == DFU_PROTOCOL_RT); + + uint8_t const * p_desc = tu_desc_next( itf_desc ); + (*p_length) = sizeof(tusb_desc_interface_t); + + if ( TUSB_DESC_FUNCTIONAL == tu_desc_type(p_desc) ) + { + (*p_length) += p_desc[DESC_OFFSET_LEN]; + p_desc = tu_desc_next(p_desc); + } + + return true; +} + +bool dfu_rtd_control_complete(uint8_t rhport, tusb_control_request_t const * request) +{ + (void) rhport; + + //------------- Class Specific Request -------------// + TU_VERIFY(request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS); + TU_VERIFY(request->bmRequestType_bit.recipient == TUSB_REQ_RCPT_INTERFACE); + + return true; +} + +bool dfu_rtd_control_request(uint8_t rhport, tusb_control_request_t const * request) +{ + (void) rhport; + + //------------- Class Specific Request -------------// + TU_ASSERT(request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS); + TU_ASSERT(request->bmRequestType_bit.recipient == TUSB_REQ_RCPT_INTERFACE); + + switch ( request->bRequest ) + { + case DFU_REQUEST_DETACH: + tud_control_status(rhport, request); + tud_dfu_rt_reboot_to_dfu(); + 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 diff --git a/src/class/dfu/dfu_rt_device.h b/src/class/dfu/dfu_rt_device.h new file mode 100644 index 000000000..4348a0f3a --- /dev/null +++ b/src/class/dfu/dfu_rt_device.h @@ -0,0 +1,77 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Sylvain Munaut + * + * 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. + */ + +#ifndef _TUSB_DFU_RT_DEVICE_H_ +#define _TUSB_DFU_RT_DEVICE_H_ + +#include "common/tusb_common.h" +#include "device/usbd.h" + +#ifdef __cplusplus + extern "C" { +#endif + + +//--------------------------------------------------------------------+ +// Common Definitions +//--------------------------------------------------------------------+ + +// DFU Protocol +typedef enum +{ + DFU_PROTOCOL_RT = 1, + DFU_PROTOCOL_DFU = 2, +} dfu_protocol_type_t; + +// DFU Descriptor Type +typedef enum +{ + DFU_DESC_FUNCTIONAL = 0x21, +} dfu_descriptor_type_t; + + +//--------------------------------------------------------------------+ +// Application Callback API (weak is optional) +//--------------------------------------------------------------------+ + +// Invoked when received new data +TU_ATTR_WEAK void tud_dfu_rt_reboot_to_dfu(void); + +//--------------------------------------------------------------------+ +// Internal Class Driver API +//--------------------------------------------------------------------+ +void dfu_rtd_init(void); +void dfu_rtd_reset(uint8_t rhport); +bool dfu_rtd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length); +bool dfu_rtd_control_request(uint8_t rhport, tusb_control_request_t const * request); +bool dfu_rtd_control_complete(uint8_t rhport, tusb_control_request_t const * request); +bool dfu_rtd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes); + +#ifdef __cplusplus + } +#endif + +#endif /* _TUSB_DFU_RT_DEVICE_H_ */ diff --git a/src/common/tusb_types.h b/src/common/tusb_types.h index ad42baad7..737b17f76 100644 --- a/src/common/tusb_types.h +++ b/src/common/tusb_types.h @@ -86,6 +86,8 @@ typedef enum TUSB_DESC_BOS = 0x0F, TUSB_DESC_DEVICE_CAPABILITY = 0x10, + TUSB_DESC_FUNCTIONAL = 0x21, + // Class Specific Descriptor TUSB_DESC_CS_DEVICE = 0x21, TUSB_DESC_CS_CONFIGURATION = 0x22, diff --git a/src/device/usbd.c b/src/device/usbd.c index 14e56a9b7..49f28da87 100644 --- a/src/device/usbd.c +++ b/src/device/usbd.c @@ -167,6 +167,20 @@ static usbd_class_driver_t const usbd_class_drivers[] = .sof = NULL }, #endif + + #if CFG_TUD_DFU_RT + { + .class_code = TUD_DFU_APP_CLASS, + //.subclass_code = TUD_DFU_APP_SUBCLASS + .init = dfu_rtd_init, + .reset = dfu_rtd_reset, + .open = dfu_rtd_open, + .control_request = dfu_rtd_control_request, + .control_complete = dfu_rtd_control_complete, + .xfer_cb = dfu_rtd_xfer_cb, + .sof = NULL + }, + #endif }; enum { USBD_CLASS_DRIVER_COUNT = TU_ARRAY_SIZE(usbd_class_drivers) }; diff --git a/src/device/usbd.h b/src/device/usbd.h index f0887f0db..0ad126e94 100644 --- a/src/device/usbd.h +++ b/src/device/usbd.h @@ -304,6 +304,21 @@ TU_ATTR_WEAK bool tud_vendor_control_complete_cb(uint8_t rhport, tusb_control_re /* Endpoint In */\ 7, TUSB_DESC_ENDPOINT, _epin, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0 +//------------- DFU Runtime -------------// +#define TUD_DFU_APP_CLASS (TUSB_CLASS_APPLICATION_SPECIFIC) +#define TUD_DFU_APP_SUBCLASS 0x01u + +// Length of template descriptr: 18 bytes +#define TUD_DFU_RT_DESC_LEN (9 + 9) + +// DFU runtime descriptor +// Interface number, string index, attributes, detach timeout, transfer size +#define TUD_DFU_RT_DESCRIPTOR(_itfnum, _stridx, _attr, _timeout, _xfer_size) \ + /* Interface */ \ + 9, TUSB_DESC_INTERFACE, _itfnum, 0, 0, TUD_DFU_APP_CLASS, TUD_DFU_APP_SUBCLASS, DFU_PROTOCOL_RT, _stridx, \ + /* Function */ \ + 9, DFU_DESC_FUNCTIONAL, _attr, U16_TO_U8S_LE(_timeout), U16_TO_U8S_LE(_xfer_size), U16_TO_U8S_LE(0x0101) + #ifdef __cplusplus } diff --git a/src/tusb.h b/src/tusb.h index 1a6ff0b10..bf4ad5730 100644 --- a/src/tusb.h +++ b/src/tusb.h @@ -87,6 +87,10 @@ #if CFG_TUD_USBTMC #include "class/usbtmc/usbtmc_device.h" #endif + + #if CFG_TUD_DFU_RT + #include "class/dfu/dfu_rt_device.h" + #endif #endif diff --git a/src/tusb_option.h b/src/tusb_option.h index 6178b2cf9..fc509ae76 100644 --- a/src/tusb_option.h +++ b/src/tusb_option.h @@ -188,6 +188,10 @@ #define CFG_TUD_USBTMC 0 #endif +#ifndef CFG_TUD_DFU_RT + #define CFG_TUD_DFU_RT 0 +#endif + //-------------------------------------------------------------------- // HOST OPTIONS -- cgit v1.3.1 From 880ac1e39823f7e17416b882ff57b0899f2e85da Mon Sep 17 00:00:00 2001 From: hathach Date: Wed, 30 Oct 2019 11:35:25 +0700 Subject: move dcd event helper to be dcd.h as inline function --- src/device/dcd.h | 47 +++++++++++++++++++++++++++++++++++++++-------- src/device/usbd.c | 28 ---------------------------- 2 files changed, 39 insertions(+), 36 deletions(-) (limited to 'src') diff --git a/src/device/dcd.h b/src/device/dcd.h index c417ee4be..444b4a6f9 100644 --- a/src/device/dcd.h +++ b/src/device/dcd.h @@ -79,7 +79,7 @@ typedef struct TU_ATTR_ALIGNED(4) }; } dcd_event_t; -TU_VERIFY_STATIC(sizeof(dcd_event_t) <= 12, "size is not correct"); +//TU_VERIFY_STATIC(sizeof(dcd_event_t) <= 12, "size is not correct"); /*------------------------------------------------------------------*/ /* Device API @@ -119,20 +119,51 @@ void dcd_edpt_stall (uint8_t rhport, uint8_t ep_addr); // clear stall, data toggle is also reset to DATA0 void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr); -/*------------------------------------------------------------------*/ -/* Event Function - * Called by DCD to notify device stack - *------------------------------------------------------------------*/ +//--------------------------------------------------------------------+ +// Event API +//--------------------------------------------------------------------+ + +// Called by DCD to notify device stack void dcd_event_handler(dcd_event_t const * event, bool in_isr); // helper to send bus signal event -void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr); +static inline void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr); // helper to send setup received -void dcd_event_setup_received(uint8_t rhport, uint8_t const * setup, bool in_isr); +static inline void dcd_event_setup_received(uint8_t rhport, uint8_t const * setup, bool in_isr); // helper to send transfer complete event -void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr); +static inline void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr); + + +//--------------------------------------------------------------------+ +// Inline helper +//--------------------------------------------------------------------+ + +static inline void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr) +{ + dcd_event_t event = { .rhport = rhport, .event_id = eid, }; + dcd_event_handler(&event, in_isr); +} + +static inline void dcd_event_setup_received(uint8_t rhport, uint8_t const * setup, bool in_isr) +{ + dcd_event_t event = { .rhport = rhport, .event_id = DCD_EVENT_SETUP_RECEIVED }; + memcpy(&event.setup_received, setup, 8); + + dcd_event_handler(&event, in_isr); +} + +static inline void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr) +{ + dcd_event_t event = { .rhport = rhport, .event_id = DCD_EVENT_XFER_COMPLETE }; + + event.xfer_complete.ep_addr = ep_addr; + event.xfer_complete.len = xferred_bytes; + event.xfer_complete.result = result; + + dcd_event_handler(&event, in_isr); +} #ifdef __cplusplus } diff --git a/src/device/usbd.c b/src/device/usbd.c index f2becab95..3e6bf68c9 100644 --- a/src/device/usbd.c +++ b/src/device/usbd.c @@ -870,34 +870,6 @@ void dcd_event_handler(dcd_event_t const * event, bool in_isr) } } -// helper to send bus signal event -void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr) -{ - dcd_event_t event = { .rhport = rhport, .event_id = eid, }; - dcd_event_handler(&event, in_isr); -} - -// helper to send setup received -void dcd_event_setup_received(uint8_t rhport, uint8_t const * setup, bool in_isr) -{ - dcd_event_t event = { .rhport = rhport, .event_id = DCD_EVENT_SETUP_RECEIVED }; - memcpy(&event.setup_received, setup, 8); - - dcd_event_handler(&event, in_isr); -} - -// helper to send transfer complete event -void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr) -{ - dcd_event_t event = { .rhport = rhport, .event_id = DCD_EVENT_XFER_COMPLETE }; - - event.xfer_complete.ep_addr = ep_addr; - event.xfer_complete.len = xferred_bytes; - event.xfer_complete.result = result; - - dcd_event_handler(&event, in_isr); -} - //--------------------------------------------------------------------+ // Helper //--------------------------------------------------------------------+ -- cgit v1.3.1 From 16665672a45c4f85cb2e1a47873825f2b48fcf1a Mon Sep 17 00:00:00 2001 From: hathach Date: Wed, 30 Oct 2019 12:24:07 +0700 Subject: initally adding test_usbd.c --- src/device/dcd.h | 2 +- test/project.yml | 5 +-- test/test/support/tusb_config.h | 11 +++---- test/test/test_usbd.c | 68 +++++++++++++++++++++++++++++++++++++++++ 4 files changed, 77 insertions(+), 9 deletions(-) create mode 100644 test/test/test_usbd.c (limited to 'src') diff --git a/src/device/dcd.h b/src/device/dcd.h index 444b4a6f9..9fa98c669 100644 --- a/src/device/dcd.h +++ b/src/device/dcd.h @@ -124,7 +124,7 @@ void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr); //--------------------------------------------------------------------+ // Called by DCD to notify device stack -void dcd_event_handler(dcd_event_t const * event, bool in_isr); +extern void dcd_event_handler(dcd_event_t const * event, bool in_isr); // helper to send bus signal event static inline void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr); diff --git a/test/project.yml b/test/project.yml index 403aa0119..cf29c3b04 100644 --- a/test/project.yml +++ b/test/project.yml @@ -9,6 +9,7 @@ :use_exceptions: TRUE :use_test_preprocessor: TRUE :use_auxiliary_dependencies: TRUE + :use_deep_dependencies: TRUE :build_root: _build # :release_build: TRUE :test_file_prefix: test_ @@ -41,10 +42,10 @@ :commmon: &common_defines [] :test: - *common_defines - - TEST + - _TEST_ :test_preprocess: - *common_defines - - TEST + - _TEST_ :cmock: :mock_prefix: mock_ diff --git a/test/test/support/tusb_config.h b/test/test/support/tusb_config.h index b82a09a23..bfe5bf9e9 100644 --- a/test/test/support/tusb_config.h +++ b/test/test/support/tusb_config.h @@ -73,12 +73,11 @@ #define CFG_TUD_ENDOINT0_SIZE 64 //------------- CLASS -------------// -#define CFG_TUD_CDC 1 -#define CFG_TUD_MSC 1 -#define CFG_TUD_HID 1 - -#define CFG_TUD_MIDI 1 -#define CFG_TUD_VENDOR 1 +#define CFG_TUD_CDC 0 +#define CFG_TUD_MSC 0 +#define CFG_TUD_HID 0 +#define CFG_TUD_MIDI 0 +#define CFG_TUD_VENDOR 0 //------------- CDC -------------// diff --git a/test/test/test_usbd.c b/test/test/test_usbd.c new file mode 100644 index 000000000..8c29ee853 --- /dev/null +++ b/test/test/test_usbd.c @@ -0,0 +1,68 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 hathach for Adafruit Industries + * + * 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. + */ + +#include "unity.h" + +// Files to test +#include "tusb_fifo.h" +#include "tusb.h" +#include "usbd.h" +TEST_FILE("usbd_control.c") + +// Mock File +#include "mock_dcd.h" + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM DECLARATION +//--------------------------------------------------------------------+ + +uint8_t const * tud_descriptor_device_cb(void) +{ + return NULL; +} + +uint8_t const * tud_descriptor_configuration_cb(uint8_t index) +{ + return NULL; +} + +uint16_t const* tud_descriptor_string_cb(uint8_t index) +{ + return NULL; +} + +//------------- IMPLEMENTATION -------------// +void setUp(void) +{ + +} + +void tearDown(void) +{ +} + +void test_ok(void) +{ + +} -- cgit v1.3.1 From a0002cc709bd39049d3effbe9a59b62dc198f79d Mon Sep 17 00:00:00 2001 From: hathach Date: Wed, 30 Oct 2019 23:26:34 +0700 Subject: rename usbd_init() to tud_init() --- src/device/usbd.c | 2 +- src/device/usbd.h | 3 +++ src/device/usbd_pvt.h | 2 -- src/tusb.c | 2 +- 4 files changed, 5 insertions(+), 4 deletions(-) (limited to 'src') diff --git a/src/device/usbd.c b/src/device/usbd.c index 3e6bf68c9..62f6e9922 100644 --- a/src/device/usbd.c +++ b/src/device/usbd.c @@ -276,7 +276,7 @@ bool tud_remote_wakeup(void) //--------------------------------------------------------------------+ // USBD Task //--------------------------------------------------------------------+ -bool usbd_init (void) +bool tud_init (void) { TU_LOG2("USBD init\r\n"); diff --git a/src/device/usbd.h b/src/device/usbd.h index f0887f0db..e340215fe 100644 --- a/src/device/usbd.h +++ b/src/device/usbd.h @@ -41,6 +41,9 @@ // Application API //--------------------------------------------------------------------+ +// Init device stack +bool tud_init (void); + // Task function should be called in main/rtos loop void tud_task (void); diff --git a/src/device/usbd_pvt.h b/src/device/usbd_pvt.h index 892680142..b9947044b 100644 --- a/src/device/usbd_pvt.h +++ b/src/device/usbd_pvt.h @@ -33,8 +33,6 @@ extern "C" { #endif -bool usbd_init (void); - //--------------------------------------------------------------------+ // USBD Endpoint API //--------------------------------------------------------------------+ diff --git a/src/tusb.c b/src/tusb.c index 271b35f1e..7a1e73ec7 100644 --- a/src/tusb.c +++ b/src/tusb.c @@ -47,7 +47,7 @@ bool tusb_init(void) #endif #if TUSB_OPT_DEVICE_ENABLED - TU_ASSERT ( usbd_init() ); // init device stack + TU_ASSERT ( tud_init() ); // init device stack #endif _initialized = true; -- cgit v1.3.1