diff options
Diffstat (limited to 'core/riscv-rv32i/irq_handler.h')
| -rw-r--r-- | core/riscv-rv32i/irq_handler.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/core/riscv-rv32i/irq_handler.h b/core/riscv-rv32i/irq_handler.h new file mode 100644 index 0000000000..e2ca79d71f --- /dev/null +++ b/core/riscv-rv32i/irq_handler.h @@ -0,0 +1,25 @@ +/* Copyright 2019 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/* Helper to declare IRQ handling routines */ + +#ifndef __CROS_EC_IRQ_HANDLER_H +#define __CROS_EC_IRQ_HANDLER_H + +/* Helper macros to build the IRQ handler and priority struct names */ +#define IRQ_HANDLER(irqname) CONCAT3(irq_, irqname, _handler) +#define IRQ_PRIORITY(irqname) CONCAT2(prio_, irqname) +/* + * Macro to connect the interrupt handler "routine" to the irq number "irq" and + * ensure it is enabled in the interrupt controller with the right priority. + */ +#define DECLARE_IRQ(irq, routine, priority) \ + void IRQ_HANDLER(CPU_INT(irq))(void) \ + __attribute__ ((alias(STRINGIFY(routine)))); \ + const struct irq_priority __keep IRQ_PRIORITY(CPU_INT(irq)) \ + __attribute__((section(".rodata.irqprio"))) \ + = {CPU_INT(irq), priority} + +#endif /* __CROS_EC_IRQ_HANDLER_H */ |