mirror of https://github.com/RT-Thread/rt-thread
168 lines
5.3 KiB
C
Executable File
168 lines
5.3 KiB
C
Executable File
/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2022-08-24 GuEe-GUI first version
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*/
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#ifndef __PIC_H__
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#define __PIC_H__
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#include <rthw.h>
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#include <bitmap.h>
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#include <drivers/ofw.h>
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#include <drivers/core/rtdm.h>
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struct rt_pci_msi_desc;
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struct rt_pci_msi_msg;
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struct rt_pic_ops;
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struct rt_pic_irq;
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struct rt_pic
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{
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rt_list_t list;
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struct rt_pic_ops *ops;
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void *priv_data;
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void *user_data;
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struct rt_pic *parent;
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int irq_start;
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rt_size_t irq_nr;
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struct rt_pic_irq *pirqs;
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};
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struct rt_pic_ops
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{
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const char *name;
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rt_err_t (*irq_init)(struct rt_pic *pic);
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rt_err_t (*irq_finit)(struct rt_pic *pic);
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void (*irq_enable)(struct rt_pic_irq *pirq);
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void (*irq_disable)(struct rt_pic_irq *pirq);
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void (*irq_ack)(struct rt_pic_irq *pirq);
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void (*irq_mask)(struct rt_pic_irq *pirq);
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void (*irq_unmask)(struct rt_pic_irq *pirq);
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void (*irq_eoi)(struct rt_pic_irq *pirq);
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rt_err_t (*irq_set_priority)(struct rt_pic_irq *pirq, rt_uint32_t priority);
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rt_err_t (*irq_set_affinity)(struct rt_pic_irq *pirq, rt_bitmap_t *affinity);
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rt_err_t (*irq_set_triger_mode)(struct rt_pic_irq *pirq, rt_uint32_t mode);
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void (*irq_send_ipi)(struct rt_pic_irq *pirq, rt_bitmap_t *cpumask);
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void (*irq_compose_msi_msg)(struct rt_pic_irq *pirq, struct rt_pci_msi_msg *msg);
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void (*irq_write_msi_msg)(struct rt_pic_irq *pirq, struct rt_pci_msi_msg *msg);
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int (*irq_alloc_msi)(struct rt_pic *pic, struct rt_pci_msi_desc *msi_desc);
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void (*irq_free_msi)(struct rt_pic *pic, int irq);
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int (*irq_map)(struct rt_pic *pic, int hwirq, rt_uint32_t mode);
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rt_err_t (*irq_parse)(struct rt_pic *pic, struct rt_ofw_cell_args *args, struct rt_pic_irq *out_pirq);
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};
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struct rt_pic_isr
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{
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rt_list_t list;
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#define RT_IRQ_F_NONE 0
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int flags;
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struct rt_irq_desc action;
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};
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struct rt_pic_irq
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{
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int irq;
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int hwirq;
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#define RT_IRQ_MODE_NONE 0
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#define RT_IRQ_MODE_EDGE_RISING 1
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#define RT_IRQ_MODE_EDGE_FALLING 2
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#define RT_IRQ_MODE_EDGE_BOTH (RT_IRQ_MODE_EDGE_FALLING | RT_IRQ_MODE_EDGE_RISING)
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#define RT_IRQ_MODE_LEVEL_HIGH 4
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#define RT_IRQ_MODE_LEVEL_LOW 8
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#define RT_IRQ_MODE_LEVEL_MASK (RT_IRQ_MODE_LEVEL_LOW | RT_IRQ_MODE_LEVEL_HIGH)
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#define RT_IRQ_MODE_MASK 0xf
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rt_uint32_t mode;
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rt_uint32_t priority;
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RT_DECLARE_BITMAP(affinity, RT_CPUS_NR);
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struct rt_pci_msi_desc *msi_desc;
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struct rt_pic_isr isr;
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struct rt_spinlock rw_lock;
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struct rt_pic *pic;
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};
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rt_err_t rt_pic_linear_irq(struct rt_pic *pic, rt_size_t irq_nr);
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int rt_pic_config_ipi(struct rt_pic *pic, int ipi_index, int hwirq);
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int rt_pic_config_irq(struct rt_pic *pic, int irq_index, int hwirq);
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rt_inline struct rt_pic_irq *rt_pic_find_irq(struct rt_pic *pic, int irq_index)
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{
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/* This is a quickly interface */
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RT_ASSERT(pic != RT_NULL);
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RT_ASSERT(pic->pirqs != RT_NULL);
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RT_ASSERT(irq_index < pic->irq_nr);
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return &pic->pirqs[irq_index];
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}
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struct rt_pic_irq *rt_pic_find_ipi(struct rt_pic *pic, int ipi_index);
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int rt_pic_cascade(struct rt_pic *pic, struct rt_pic *parent_pic, int hwirq, rt_uint32_t mode);
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void rt_pic_uncascade(struct rt_pic *pic, int irq);
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rt_err_t rt_pic_attach_irq(int irq, rt_isr_handler_t handler, void *uid, const char *name, int flags);
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rt_err_t rt_pic_detach_irq(int irq, void *uid);
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rt_err_t rt_pic_add_traps(rt_bool_t (*handler)(void *), void *data);
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rt_err_t rt_pic_do_traps(void);
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rt_err_t rt_pic_handle_isr(struct rt_pic_irq *pirq);
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/* User-implemented extensions */
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rt_err_t rt_pic_user_extends(struct rt_pic *pic);
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rt_err_t rt_pic_irq_init(void);
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rt_err_t rt_pic_irq_finit(void);
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void rt_pic_irq_enable(int irq);
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void rt_pic_irq_disable(int irq);
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void rt_pic_irq_ack(int irq);
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void rt_pic_irq_mask(int irq);
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void rt_pic_irq_unmask(int irq);
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void rt_pic_irq_eoi(int irq);
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rt_err_t rt_pic_irq_set_priority(int irq, rt_uint32_t priority);
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rt_uint32_t rt_pic_irq_get_priority(int irq);
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rt_err_t rt_pic_irq_set_affinity(int irq, rt_bitmap_t *affinity);
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rt_err_t rt_pic_irq_get_affinity(int irq, rt_bitmap_t *out_affinity);
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rt_err_t rt_pic_irq_set_triger_mode(int irq, rt_uint32_t mode);
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rt_uint32_t rt_pic_irq_get_triger_mode(int irq);
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void rt_pic_irq_send_ipi(int irq, rt_bitmap_t *cpumask);
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void rt_pic_irq_parent_enable(struct rt_pic *ppic, struct rt_pic_irq *pirq);
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void rt_pic_irq_parent_disable(struct rt_pic *ppic, struct rt_pic_irq *pirq);
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void rt_pic_irq_parent_ack(struct rt_pic *ppic, struct rt_pic_irq *pirq);
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void rt_pic_irq_parent_mask(struct rt_pic *ppic, struct rt_pic_irq *pirq);
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void rt_pic_irq_parent_unmask(struct rt_pic *ppic, struct rt_pic_irq *pirq);
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void rt_pic_irq_parent_eoi(struct rt_pic *ppic, struct rt_pic_irq *pirq);
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rt_err_t rt_pic_irq_parent_set_priority(struct rt_pic *ppic, struct rt_pic_irq *pirq, rt_uint32_t priority);
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rt_err_t rt_pic_irq_parent_set_affinity(struct rt_pic *ppic, struct rt_pic_irq *pirq, rt_bitmap_t *affinity);
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rt_err_t rt_pic_irq_parent_set_triger_mode(struct rt_pic *ppic, struct rt_pic_irq *pirq, rt_uint32_t mode);
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#define RT_PIC_OFW_DECLARE(name, ids, handler) RT_OFW_STUB_EXPORT(name, ids, pic, handler)
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rt_err_t rt_pic_init(void);
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#endif /* __PIC_H__ */
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