106 lines
4.1 KiB
C
106 lines
4.1 KiB
C
/*
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* Copyright (c) 2015 - 2016, Freescale Semiconductor, Inc.
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* Copyright 2016 NXP
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY 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 OR CONTRIBUTORS BE LIABLE FOR
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* ANY 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 ON
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* 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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*/
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#include "stdint.h"
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#include "usb.h"
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#include "usb_osa.h"
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#include "stdlib.h"
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#include "MK22F51212.h"
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#include "fsl_common.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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#define USB_OSA_BM_EVENT_COUNT (2U)
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#define USB_OSA_BM_SEM_COUNT (1U)
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#define USB_OSA_BM_MSGQ_COUNT (1U)
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#define USB_OSA_BM_MSG_COUNT (8U)
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#define USB_OSA_BM_MSG_SIZE (4U)
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/* BM Event status structure */
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typedef struct _usb_osa_event_struct
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{
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uint32_t value; /* Event mask */
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uint32_t flag; /* Event flags, includes auto clear flag */
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uint8_t isUsed; /* Is used */
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} usb_osa_event_struct_t;
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/* BM semaphore status structure */
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typedef struct _usb_osa_sem_struct
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{
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uint32_t value; /* Semaphore count */
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uint8_t isUsed; /* Is used */
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} usb_osa_sem_struct_t;
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/* BM msg status structure */
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typedef struct _usb_osa_msg_struct
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{
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uint32_t msg[USB_OSA_BM_MSG_SIZE]; /* Message entity pointer */
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} usb_osa_msg_struct_t;
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/* BM msgq status structure */
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typedef struct _usb_osa_msgq_struct
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{
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usb_osa_msg_struct_t msgs[USB_OSA_BM_MSG_COUNT]; /* Message entity list */
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uint32_t count; /* Max message entity count */
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uint32_t msgSize; /* Size of each message */
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uint32_t msgCount; /* Valid messages */
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uint32_t index; /* The first empty message entity index */
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uint32_t current; /* The vaild message index */
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uint8_t isUsed; /* Is used */
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} usb_osa_msgq_struct_t;
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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/*******************************************************************************
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* Variables
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******************************************************************************/
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USB_GLOBAL static usb_osa_sem_struct_t s_UsbBmSemStruct[USB_OSA_BM_SEM_COUNT];
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USB_GLOBAL static usb_osa_event_struct_t s_UsbBmEventStruct[USB_OSA_BM_EVENT_COUNT];
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USB_GLOBAL static usb_osa_msgq_struct_t s_UsbBmMsgqStruct[USB_OSA_BM_MSGQ_COUNT];
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/*******************************************************************************
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* Code
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******************************************************************************/
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void USB_OsaEnterCritical(uint32_t *sr)
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{
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*sr = __get_PRIMASK();
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__disable_irq();
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__ASM("CPSID I");
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}
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void USB_OsaExitCritical(uint32_t sr)
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{
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__set_PRIMASK(sr);
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}
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