9e5d3dacd6
reason: dynaminc create g_irqmap to reduce the use of data segments CONFIG_ARCH_NUSER_INTERRUPTS should be one more than the number of IRQs actually used Signed-off-by: hujun5 <hujun5@xiaomi.com>
207 lines
6.9 KiB
C
207 lines
6.9 KiB
C
/****************************************************************************
|
|
* sched/irq/irq.h
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __SCHED_IRQ_IRQ_H
|
|
#define __SCHED_IRQ_IRQ_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <nuttx/compiler.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <nuttx/arch.h>
|
|
#include <nuttx/irq.h>
|
|
#include <nuttx/spinlock.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#if defined(CONFIG_ARCH_MINIMAL_VECTORTABLE) && \
|
|
!defined(CONFIG_ARCH_NUSER_INTERRUPTS)
|
|
# error CONFIG_ARCH_NUSER_INTERRUPTS is not defined
|
|
#endif
|
|
|
|
#if defined(CONFIG_ARCH_MINIMAL_VECTORTABLE_DYNAMIC)
|
|
# define IRQ_TO_NDX(irq) (g_irqmap[irq] ? g_irqmap[irq] : irq_to_ndx(irq))
|
|
#elif defined(CONFIG_ARCH_MINIMAL_VECTORTABLE)
|
|
# define IRQ_TO_NDX(irq) \
|
|
(g_irqmap[(irq)] < CONFIG_ARCH_NUSER_INTERRUPTS ? g_irqmap[(irq)] : -EINVAL)
|
|
#else
|
|
# define IRQ_TO_NDX(irq) (irq)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* This is the type of the list of interrupt handlers, one for each IRQ.
|
|
* This type provided all of the information necessary to irq_dispatch to
|
|
* transfer control to interrupt handlers after the occurrence of an
|
|
* interrupt.
|
|
*/
|
|
|
|
struct irq_info_s
|
|
{
|
|
xcpt_t handler; /* Address of the interrupt handler */
|
|
FAR void *arg; /* The argument provided to the interrupt handler. */
|
|
#ifdef CONFIG_SCHED_IRQMONITOR
|
|
clock_t start; /* Time interrupt attached */
|
|
clock_t time; /* Maximum execution time on this IRQ */
|
|
uint32_t count; /* Number of interrupts on this IRQ */
|
|
#endif
|
|
};
|
|
|
|
#ifdef CONFIG_SCHED_IRQMONITOR
|
|
/* This is the type of the callback from irq_foreach(). */
|
|
|
|
typedef CODE int (*irq_foreach_t)(int irq, FAR struct irq_info_s *info,
|
|
FAR void *arg);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/* This is the list of interrupt handlers, one for each IRQ. This is used
|
|
* by irq_dispatch to transfer control to interrupt handlers after the
|
|
* occurrence of an interrupt.
|
|
*/
|
|
|
|
#ifdef CONFIG_ARCH_MINIMAL_VECTORTABLE
|
|
extern struct irq_info_s g_irqvector[CONFIG_ARCH_NUSER_INTERRUPTS];
|
|
#else
|
|
extern struct irq_info_s g_irqvector[NR_IRQS];
|
|
#endif
|
|
|
|
/* This is the interrupt vector mapping table. This must be provided by
|
|
* architecture specific logic if CONFIG_ARCH_MINIMAL_VECTORTABLE is define
|
|
* in the configuration.
|
|
*
|
|
* REVISIT: This should be declared in include/nuttx/irq.h. The declaration
|
|
* at that location, however, introduces a circular include dependency so the
|
|
* declaration is here for the time being.
|
|
*/
|
|
|
|
#if defined(CONFIG_ARCH_MINIMAL_VECTORTABLE_DYNAMIC)
|
|
extern irq_mapped_t g_irqmap[NR_IRQS];
|
|
int irq_to_ndx(int irq);
|
|
#elif defined(CONFIG_ARCH_MINIMAL_VECTORTABLE)
|
|
extern const irq_mapped_t g_irqmap[NR_IRQS];
|
|
#endif
|
|
|
|
#ifdef CONFIG_SMP
|
|
/* This is the spinlock that enforces critical sections when interrupts are
|
|
* disabled.
|
|
*/
|
|
|
|
extern volatile spinlock_t g_cpu_irqlock;
|
|
|
|
/* Used to keep track of which CPU(s) hold the IRQ lock. */
|
|
|
|
extern volatile spinlock_t g_cpu_irqsetlock;
|
|
extern volatile cpu_set_t g_cpu_irqset;
|
|
|
|
/* Handles nested calls to enter_critical section from interrupt handlers */
|
|
|
|
extern volatile uint8_t g_cpu_nestcount[CONFIG_SMP_NCPUS];
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: irq_initialize
|
|
*
|
|
* Description:
|
|
* Configure the IRQ subsystem
|
|
*
|
|
****************************************************************************/
|
|
|
|
void irq_initialize(void);
|
|
|
|
/****************************************************************************
|
|
* Name: irq_unexpected_isr
|
|
*
|
|
* Description:
|
|
* An interrupt has been received for an IRQ that was never registered
|
|
* with the system.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int irq_unexpected_isr(int irq, FAR void *context, FAR void *arg);
|
|
|
|
/****************************************************************************
|
|
* Name: irq_foreach
|
|
*
|
|
* Description:
|
|
* This function traverses the internal list of interrupts and provides
|
|
* information about each attached interrupt.
|
|
*
|
|
* Some caution may be necessary: If interrupts are disabled then the
|
|
* counts may change during the traversal. If pre-emption is enabled, then
|
|
* the traversed sequence may be widely separated in time.
|
|
*
|
|
* Input Parameters:
|
|
* callback - This function will be called for each attached interrupt
|
|
* along with the IRQ number, an instance of struct irq_info_s,
|
|
* and the caller provided argument
|
|
* args - This is an opaque argument provided with each call to the
|
|
* callback function.
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) is returned after callback has been invoked for all of
|
|
* the attached interrupts. The callback function may terminate the
|
|
* traversal at any time by returning a non-zero value. In that case,
|
|
* irq_foreach will return that non-zero value.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_SCHED_IRQMONITOR
|
|
int irq_foreach(irq_foreach_t callback, FAR void *arg);
|
|
#endif
|
|
|
|
#ifdef CONFIG_IRQCHAIN
|
|
void irqchain_initialize(void);
|
|
bool is_irqchain(int ndx, xcpt_t isr);
|
|
int irqchain_attach(int ndx, xcpt_t isr, FAR void *arg);
|
|
#endif
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __SCHED_IRQ_IRQ_H */
|