74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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* Copyright (c) 2014 Wind River Systems, Inc.
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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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*/
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/**
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* @file
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* @brief Interrupt helper functions (ARC)
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*
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* This file contains private nanokernel structures definitions and various
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* other definitions for the ARCv2 processor architecture.
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*/
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#ifndef _ARCV2_IRQ__H_
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#define _ARCV2_IRQ__H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define _ARC_V2_AUX_IRQ_CTRL_BLINK (1 << 9)
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#define _ARC_V2_AUX_IRQ_CTRL_LOOP_REGS (1 << 10)
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#define _ARC_V2_AUX_IRQ_CTRL_LP (1 << 13)
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#define _ARC_V2_AUX_IRQ_CTRL_14_REGS 7
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#define _ARC_V2_AUX_IRQ_CTRL_16_REGS 8
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#define _ARC_V2_AUX_IRQ_CTRL_32_REGS 16
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#define _ARC_V2_DEF_IRQ_LEVEL (CONFIG_NUM_IRQ_PRIO_LEVELS-1)
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#define _ARC_V2_WAKE_IRQ_LEVEL _ARC_V2_DEF_IRQ_LEVEL
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#ifndef _ASMLANGUAGE
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extern void _firq_stack_setup(void);
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extern char _interrupt_stack[];
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/*
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* _irq_setup
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*
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* Configures interrupt handling parameters
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*/
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static ALWAYS_INLINE void _irq_setup(void)
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{
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uint32_t aux_irq_ctrl_value = (
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_ARC_V2_AUX_IRQ_CTRL_LOOP_REGS | /* save lp_xxx registers */
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_ARC_V2_AUX_IRQ_CTRL_BLINK | /* save blink */
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_ARC_V2_AUX_IRQ_CTRL_14_REGS /* save r0 -> r13 (caller-saved) */
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);
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nano_cpu_sleep_mode = _ARC_V2_WAKE_IRQ_LEVEL;
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_arc_v2_aux_reg_write(_ARC_V2_AUX_IRQ_CTRL, aux_irq_ctrl_value);
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_kernel.irq_stack = _interrupt_stack + CONFIG_ISR_STACK_SIZE;
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_firq_stack_setup();
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}
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#endif /* _ASMLANGUAGE */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ARCV2_IRQ__H_ */
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