bcc_inline.h
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/*
* Copyright (c) 2017, Cobham Gaisler AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __BCC_BCC_INLINE_H_
#define __BCC_BCC_INLINE_H_
/*
* Implementation of inline functions. This file shall only be included from
* <bcc/bcc.h>.
*/
#define RISCV_MSTATUS_MIE 0x8
static inline uint32_t riscv_interrupt_disable( void )
{
unsigned long mstatus;
__asm__ volatile (
"csrrc %0, mstatus, 0x8" :
"=&r" ( mstatus )
);
return mstatus & RISCV_MSTATUS_MIE;
}
static inline void riscv_interrupt_enable( uint32_t level )
{
__asm__ volatile ( "csrrs zero, mstatus, %0" : : "r" ( level ) );
}
static inline int bcc_int_disable(void)
{
return riscv_interrupt_disable();
}
static inline void bcc_int_enable(int plevel)
{
riscv_interrupt_enable(plevel);
}
static inline int bcc_timer_tick_init(void)
{
return bcc_timer_tick_init_period(10 * 1000);
}
#endif