91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
// Copyright 2020-2021 Beken
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "bk_arch.h"
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#include "armstar.h"
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void arch_init(void)
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{
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}
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void smem_reset_lastblock(void)
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{
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}
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__attribute__((section(".itcm_sec_code"))) void arch_deep_sleep(void)
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{
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SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
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__WFI();
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}
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__attribute__((section(".iram"))) void arch_sleep(void)
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{
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SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
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__WFI();
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}
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__attribute__((section(".itcm_sec_code")))uint64_t check_IRQ_pending(void)
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{
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return NVIC_GetAllPendingIRQ();
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}
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void arch_atomic_set( volatile uint32_t *lk ) /* PRIVILEGED_FUNCTION */
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{
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int result;
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do
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{
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while(__LDAEX(lk) != 0);
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result = __STREXW(1, lk);
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} while(result != 0);
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return;
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}
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void arch_atomic_clear(volatile uint32_t *lk)
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{
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__STL(0, lk);
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return;
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}
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void arch_fence(void)
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{
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}
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void arch_dwt_trap_write(uint32_t addr, uint32_t data)
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{
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DCB->DEMCR &= ~(DCB_DEMCR_TRCENA_Msk | DCB_DEMCR_MON_EN_Msk);
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DWT->COMP2 = addr;
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DWT->FUNCTION2 = 0x815;
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DWT->COMP3 = data;
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DWT->FUNCTION3 = 0x81b;
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DCB->DEMCR |= (DCB_DEMCR_TRCENA_Msk | DCB_DEMCR_MON_EN_Msk);
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}
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void arch_dwt_trap_disable(void)
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{
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DCB->DEMCR &= ~(DCB_DEMCR_TRCENA_Msk | DCB_DEMCR_MON_EN_Msk);
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DWT->FUNCTION0 = 0;
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DWT->FUNCTION1 = 0;
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DWT->FUNCTION2 = 0;
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DWT->FUNCTION3 = 0;
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}
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// eof
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