172 lines
4.7 KiB
C
172 lines
4.7 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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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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// Segger embOS porting layer
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// 2019-10-08 Matt Page @ Scannex.com
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#ifndef _TUSB_OSAL_EMBOS_H_
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#define _TUSB_OSAL_EMBOS_H_
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#include "RTOS.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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//--------------------------------------------------------------------+
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// TASK API
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//--------------------------------------------------------------------+
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static inline void osal_task_delay(uint32_t msec)
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{
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// TODO: Convert milliseconds to RTOS ticks (most BSP are millisecond based, but not all!)
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OS_Delay(msec);
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}
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//--------------------------------------------------------------------+
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// Interrupt API
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//--------------------------------------------------------------------+
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static inline void osal_enter_interrupt(void)
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{
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OS_EnterInterrupt();
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}
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static inline void osal_leave_interrupt(void)
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{
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OS_LeaveInterrupt();
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}
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//--------------------------------------------------------------------+
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// Binary Semaphore API
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//--------------------------------------------------------------------+
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typedef OS_CSEMA osal_semaphore_def_t;
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typedef osal_semaphore_def_t* osal_semaphore_t;
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static inline osal_semaphore_t osal_semaphore_create(osal_semaphore_def_t* semdef)
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{
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OS_CreateCSema(semdef, 0);
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return semdef;
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}
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static inline bool osal_semaphore_post(osal_semaphore_t sem_hdl, bool in_isr)
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{
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(void) in_isr;
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OS_SignalCSema(sem_hdl);
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return true;
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}
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static inline bool osal_semaphore_wait (osal_semaphore_t sem_hdl, uint32_t msec)
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{
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(void) msec;
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if (msec == OSAL_TIMEOUT_WAIT_FOREVER) {
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OS_WaitCSema(sem_hdl);
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return true;
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} else {
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return OS_WaitCSemaTimed(sem_hdl, msec);
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}
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}
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static inline void osal_semaphore_reset(osal_semaphore_t sem_hdl)
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{
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OS_SetCSemaValue(sem_hdl, 0);
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}
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//--------------------------------------------------------------------+
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// MUTEX API (priority inheritance)
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// Within tinyusb, mutex is never used in ISR context
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//--------------------------------------------------------------------+
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typedef OS_RSEMA osal_mutex_def_t;
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typedef OS_RSEMA* osal_mutex_t;
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static inline osal_mutex_t osal_mutex_create(osal_mutex_def_t* mdef)
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{
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OS_CreateRSema(mdef);
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return mdef;
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}
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static inline bool osal_mutex_lock (osal_mutex_t mutex_hdl, uint32_t msec)
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{
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if (msec == OSAL_TIMEOUT_WAIT_FOREVER) {
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OS_Use(mutex_hdl);
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return true;
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}
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else {
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return OS_UseTimed(mutex_hdl, msec);
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}
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}
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static inline bool osal_mutex_unlock(osal_mutex_t mutex_hdl)
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{
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OS_Unuse(mutex_hdl);
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return true;
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}
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//--------------------------------------------------------------------+
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// QUEUE API
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//--------------------------------------------------------------------+
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// role device/host is used by OS NONE for mutex (disable usb isr) only
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#define OSAL_QUEUE_DEF(_role, _name, _depth, _type) \
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static _type _name##_##buf[_depth];\
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osal_queue_def_t _name = { .depth = _depth, .item_sz = sizeof(_type), .buf = _name##_##buf };
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typedef struct
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{
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uint16_t depth;
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uint16_t item_sz;
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void* buf;
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OS_MAILBOX mb;
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}osal_queue_def_t;
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typedef OS_MAILBOX* osal_queue_t;
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static inline osal_queue_t osal_queue_create(osal_queue_def_t* qdef)
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{
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OS_MAILBOX *mbp = &qdef->mb;
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OS_CreateMB(mbp, qdef->item_sz, qdef->depth, qdef->buf);
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return mbp;
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}
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static inline bool osal_queue_receive(osal_queue_t const queue_hdl, void* data)
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{
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OS_GetMail(queue_hdl, data);
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return true;
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}
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static inline bool osal_queue_send(osal_queue_t const queue_hdl, void const * data, bool in_isr)
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{
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if (in_isr) return (0 == OS_PutMailCond(queue_hdl, data));
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OS_PutMail(queue_hdl, data);
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return true;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _TUSB_OSAL_NONE_H_ */
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