2 * Copyright (c) 2015-2016 Svatopluk Kraus
3 * Copyright (c) 2015-2016 Michal Meloun
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <sys/systm.h>
35 #define INTR_IRQ_INVALID 0xFFFFFFFF
37 enum intr_map_data_type {
44 struct intr_map_data_acpi {
46 enum intr_polarity pol;
47 enum intr_trigger trig;
51 struct intr_map_data_fdt {
57 struct intr_map_data_gpio {
63 struct intr_map_data {
64 enum intr_map_data_type type;
67 struct intr_map_data_acpi acpi;
70 struct intr_map_data_fdt fdt;
72 struct intr_map_data_gpio gpio;
77 #define INTR_SOLO INTR_MD1
78 typedef int intr_irq_filter_t(void *arg, struct trapframe *tf);
80 typedef int intr_irq_filter_t(void *arg);
83 #define INTR_ISRC_NAMELEN (MAXCOMLEN + 1)
85 #define INTR_ISRCF_IPI 0x01 /* IPI interrupt */
86 #define INTR_ISRCF_PPI 0x02 /* PPI interrupt */
87 #define INTR_ISRCF_BOUND 0x04 /* bound to a CPU */
89 /* Interrupt source definition. */
91 device_t isrc_dev; /* where isrc is mapped */
92 u_int isrc_irq; /* unique identificator */
94 char isrc_name[INTR_ISRC_NAMELEN];
95 cpuset_t isrc_cpu; /* on which CPUs is enabled */
99 struct intr_event * isrc_event;
101 intr_irq_filter_t * isrc_filter;
106 /* Intr interface for PIC. */
107 int intr_isrc_deregister(struct intr_irqsrc *);
108 int intr_isrc_register(struct intr_irqsrc *, device_t, u_int, const char *, ...)
112 bool intr_isrc_init_on_cpu(struct intr_irqsrc *isrc, u_int cpu);
115 int intr_isrc_dispatch(struct intr_irqsrc *, struct trapframe *);
116 u_int intr_irq_next_cpu(u_int current_cpu, cpuset_t *cpumask);
118 int intr_pic_register(device_t, intptr_t);
119 int intr_pic_deregister(device_t, intptr_t);
120 int intr_pic_claim_root(device_t, intptr_t, intr_irq_filter_t *, void *, u_int);
122 extern device_t intr_irq_root_dev;
124 /* Intr interface for BUS. */
125 int intr_map_irq(device_t, intptr_t, struct intr_map_data *, u_int *);
127 int intr_alloc_irq(device_t, struct resource *);
128 int intr_release_irq(device_t, struct resource *);
130 int intr_setup_irq(device_t, struct resource *, driver_filter_t, driver_intr_t,
131 void *, int, void **);
132 int intr_teardown_irq(device_t, struct resource *, void *);
134 int intr_describe_irq(device_t, struct resource *, void *, const char *);
137 u_int intr_acpi_map_irq(device_t, u_int, enum intr_polarity,
141 u_int intr_fdt_map_irq(phandle_t, pcell_t *, u_int);
143 u_int intr_gpio_map_irq(device_t dev, u_int pin_num, u_int pin_flags,
147 int intr_bind_irq(device_t, struct resource *, int);
149 void intr_pic_init_secondary(void);
151 /* Virtualization for interrupt source IPI counter increment. */
153 intr_ipi_increment_count(u_long *counter, u_int cpu)
156 KASSERT(cpu < MAXCPU, ("%s: too big cpu %u", __func__, cpu));
160 /* Virtualization for interrupt source IPI counters setup. */
161 u_long * intr_ipi_setup_counters(const char *name);
164 #endif /* _SYS_INTR_H */