| /* |
| * Copyright (c) 2014, Wind River Systems, Inc. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Software-managed ISR table |
| * |
| * Data types for a software-managed ISR table, with a parameter per-ISR. |
| */ |
| |
| #ifndef ZEPHYR_INCLUDE_SW_ISR_TABLE_H_ |
| #define ZEPHYR_INCLUDE_SW_ISR_TABLE_H_ |
| |
| #if !defined(_ASMLANGUAGE) |
| #include <zephyr/types.h> |
| #include <zephyr/toolchain.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Default vector for the IRQ vector table */ |
| extern void _isr_wrapper(void); |
| |
| /* Spurious interrupt handler. Throws an error if called */ |
| extern void z_irq_spurious(const void *unused); |
| |
| /* |
| * Note the order: arg first, then ISR. This allows a table entry to be |
| * loaded arg -> r0, isr -> r3 in _isr_wrapper with one ldmia instruction, |
| * on ARM Cortex-M (Thumb2). |
| */ |
| struct _isr_table_entry { |
| const void *arg; |
| void (*isr)(const void *); |
| }; |
| |
| /* The software ISR table itself, an array of these structures indexed by the |
| * irq line |
| */ |
| extern struct _isr_table_entry _sw_isr_table[]; |
| |
| /* |
| * Data structure created in a special binary .intlist section for each |
| * configured interrupt. gen_irq_tables.py pulls this out of the binary and |
| * uses it to create the IRQ vector table and the _sw_isr_table. |
| * |
| * More discussion in include/linker/intlist.ld |
| */ |
| struct _isr_list { |
| /** IRQ line number */ |
| int32_t irq; |
| /** Flags for this IRQ, see ISR_FLAG_* definitions */ |
| int32_t flags; |
| /** ISR to call */ |
| void *func; |
| /** Parameter for non-direct IRQs */ |
| const void *param; |
| }; |
| |
| /** This interrupt gets put directly in the vector table */ |
| #define ISR_FLAG_DIRECT BIT(0) |
| |
| #define _MK_ISR_NAME(x, y) __MK_ISR_NAME(x, y) |
| #define __MK_ISR_NAME(x, y) __isr_ ## x ## _irq_ ## y |
| |
| /* Create an instance of struct _isr_list which gets put in the .intList |
| * section. This gets consumed by gen_isr_tables.py which creates the vector |
| * and/or SW ISR tables. |
| */ |
| #define Z_ISR_DECLARE(irq, flags, func, param) \ |
| static Z_DECL_ALIGN(struct _isr_list) Z_GENERIC_SECTION(.intList) \ |
| __used _MK_ISR_NAME(func, __COUNTER__) = \ |
| {irq, flags, (void *)&func, (const void *)param} |
| |
| #define IRQ_TABLE_SIZE (CONFIG_NUM_IRQS - CONFIG_GEN_IRQ_START_VECTOR) |
| |
| #ifdef CONFIG_DYNAMIC_INTERRUPTS |
| void z_isr_install(unsigned int irq, void (*routine)(const void *), |
| const void *param); |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #endif /* ZEPHYR_INCLUDE_SW_ISR_TABLE_H_ */ |