freebsd-dev/sys/boot/kshim/bsd_kernel.h
Hans Petter Selasky 8393643c27 Make the callout structure in the boot loader's kernel shim more
similar to the kernel one.

MFC after:	1 week
2016-09-14 11:16:00 +00:00

648 lines
20 KiB
C

/* $FreeBSD$ */
/*-
* Copyright (c) 2011 Hans Petter Selasky. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _BSD_KERNEL_H_
#define _BSD_KERNEL_H_
#define _KERNEL
#undef __FreeBSD_version
#define __FreeBSD_version 1100000
#include <sys/cdefs.h>
#include <sys/queue.h>
#include <sys/errno.h>
#define howmany(x, y) (((x)+((y)-1))/(y))
#define nitems(x) (sizeof((x)) / sizeof((x)[0]))
#define isalpha(x) (((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z'))
#define isdigit(x) ((x) >= '0' && (x) <= '9')
#define panic(...) do { printf("USB PANIC: " __VA_ARGS__); while (1) ; } while (0)
#define rebooting 0
#define M_USB 0
#define M_USBDEV 0
#define USB_PROC_MAX 3
#define USB_BUS_GIANT_PROC(bus) (usb_process + 2)
#define USB_BUS_NON_GIANT_BULK_PROC(bus) (usb_process + 2)
#define USB_BUS_NON_GIANT_ISOC_PROC(bus) (usb_process + 2)
#define USB_BUS_EXPLORE_PROC(bus) (usb_process + 0)
#define USB_BUS_CONTROL_XFER_PROC(bus) (usb_process + 1)
#define SYSCTL_DECL(...)
struct sysctl_req {
void *newptr;
};
#define SYSCTL_HANDLER_ARGS void *oidp, void *arg1, \
uint32_t arg2, struct sysctl_req *req
#define SYSCTL_NODE(name,...) struct { } name __used
#define SYSCTL_INT(...)
#define SYSCTL_UINT(...)
#define SYSCTL_PROC(...)
#define TUNABLE_INT(...)
#define MALLOC_DECLARE(...)
#define MALLOC_DEFINE(...)
#define EVENTHANDLER_DECLARE(...)
#define EVENTHANDLER_INVOKE(...)
#define KASSERT(...)
#define SCHEDULER_STOPPED(x) (0)
#define PI_SWI(...) (0)
#define UNIQ_NAME(x) x
#define UNIQ_NAME_STR(x) #x
#define DEVCLASS_MAXUNIT 32
#define MOD_LOAD 1
#define MOD_UNLOAD 2
#define DEVMETHOD(what,func) { #what, (void *)&func }
#define DEVMETHOD_END {0,0}
#define EARLY_DRIVER_MODULE(a, b, c, d, e, f, g) DRIVER_MODULE(a, b, c, d, e, f)
#define DRIVER_MODULE(name, busname, driver, devclass, evh, arg) \
static struct module_data bsd_##name##_##busname##_driver_mod = { \
evh, arg, #busname, #name, #busname "/" #name, \
&driver, &devclass, { 0, 0 } }; \
SYSINIT(bsd_##name##_##busname##_driver_mod, SI_SUB_DRIVERS, \
SI_ORDER_MIDDLE, module_register, \
&bsd_##name##_##busname##_driver_mod)
#define SYSINIT(uniq, subs, order, _func, _data) \
const struct sysinit UNIQ_NAME(sysinit_##uniq) = { \
.func = (_func), \
.data = __DECONST(void *, _data) \
}; \
SYSINIT_ENTRY(uniq##_entry, "sysinit", (subs), \
(order), "const struct sysinit", \
UNIQ_NAME_STR(sysinit_##uniq), "SYSINIT")
#define SYSUNINIT(uniq, subs, order, _func, _data) \
const struct sysinit UNIQ_NAME(sysuninit_##uniq) = { \
.func = (_func), \
.data = __DECONST(void *, _data) \
}; \
SYSINIT_ENTRY(uniq##_entry, "sysuninit", (subs), \
(order), "const struct sysuninit", \
UNIQ_NAME_STR(sysuninit_##uniq), "SYSUNINIT")
#define MODULE_DEPEND(...)
#define MODULE_VERSION(...)
#define NULL ((void *)0)
#define BUS_SPACE_BARRIER_READ 0x01
#define BUS_SPACE_BARRIER_WRITE 0x02
#define hz 1000
#undef PAGE_SIZE
#define PAGE_SIZE 4096
#undef MIN
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#undef MAX
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#define MTX_DEF 0
#define MTX_SPIN 0
#define MTX_RECURSE 0
#define SX_DUPOK 0
#define SX_NOWITNESS 0
#define WITNESS_WARN(...)
#define cold 0
#define BUS_PROBE_GENERIC 0
#define BUS_PROBE_DEFAULT (-20)
#define CALLOUT_RETURNUNLOCKED 0x1
#undef ffs
#define ffs(x) __builtin_ffs(x)
#undef va_list
#define va_list __builtin_va_list
#undef va_size
#define va_size(type) __builtin_va_size(type)
#undef va_start
#define va_start(ap, last) __builtin_va_start(ap, last)
#undef va_end
#define va_end(ap) __builtin_va_end(ap)
#undef va_arg
#define va_arg(ap, type) __builtin_va_arg((ap), type)
#define DEVICE_ATTACH(dev, ...) \
(((device_attach_t *)(device_get_method(dev, "device_attach")))(dev,## __VA_ARGS__))
#define DEVICE_DETACH(dev, ...) \
(((device_detach_t *)(device_get_method(dev, "device_detach")))(dev,## __VA_ARGS__))
#define DEVICE_PROBE(dev, ...) \
(((device_probe_t *)(device_get_method(dev, "device_probe")))(dev,## __VA_ARGS__))
#define DEVICE_RESUME(dev, ...) \
(((device_resume_t *)(device_get_method(dev, "device_resume")))(dev,## __VA_ARGS__))
#define DEVICE_SHUTDOWN(dev, ...) \
(((device_shutdown_t *)(device_get_method(dev, "device_shutdown")))(dev,## __VA_ARGS__))
#define DEVICE_SUSPEND(dev, ...) \
(((device_suspend_t *)(device_get_method(dev, "device_suspend")))(dev,## __VA_ARGS__))
#define USB_HANDLE_REQUEST(dev, ...) \
(((usb_handle_request_t *)(device_get_method(dev, "usb_handle_request")))(dev,## __VA_ARGS__))
#define USB_TAKE_CONTROLLER(dev, ...) \
(((usb_take_controller_t *)(device_get_method(dev, "usb_take_controller")))(dev,## __VA_ARGS__))
#define GPIO_PIN_SET(dev, ...) \
(((gpio_pin_set_t *)(device_get_method(dev, "gpio_pin_set")))(dev,## __VA_ARGS__))
#define GPIO_PIN_SETFLAGS(dev, ...) \
(((gpio_pin_setflags_t *)(device_get_method(dev, "gpio_pin_setflags")))(dev,## __VA_ARGS__))
enum {
SI_SUB_DUMMY = 0x0000000,
SI_SUB_LOCK = 0x1B00000,
SI_SUB_KLD = 0x2000000,
SI_SUB_DRIVERS = 0x3100000,
SI_SUB_PSEUDO = 0x7000000,
SI_SUB_KICK_SCHEDULER = 0xa000000,
SI_SUB_RUN_SCHEDULER = 0xfffffff
};
enum {
SI_ORDER_FIRST = 0x0000000,
SI_ORDER_SECOND = 0x0000001,
SI_ORDER_THIRD = 0x0000002,
SI_ORDER_FOURTH = 0x0000003,
SI_ORDER_MIDDLE = 0x1000000,
SI_ORDER_ANY = 0xfffffff /* last */
};
struct uio;
struct thread;
struct malloc_type;
struct usb_process;
#ifndef HAVE_STANDARD_DEFS
#define _UINT8_T_DECLARED
typedef unsigned char uint8_t;
#define _INT8_T_DECLARED
typedef signed char int8_t;
#define _UINT16_T_DECLARED
typedef unsigned short uint16_t;
#define _INT16_T_DECLARED
typedef signed short int16_t;
#define _UINT32_T_DECLARED
typedef unsigned int uint32_t;
#define _INT32_T_DECLARED
typedef signed int int32_t;
#define _UINT64_T_DECLARED
typedef unsigned long long uint64_t;
#define _INT16_T_DECLARED
typedef signed long long int64_t;
typedef uint16_t uid_t;
typedef uint16_t gid_t;
typedef uint16_t mode_t;
typedef uint8_t *caddr_t;
#define _UINTPTR_T_DECLARED
typedef unsigned long uintptr_t;
#define _SIZE_T_DECLARED
typedef unsigned long size_t;
typedef unsigned long u_long;
#endif
typedef unsigned long bus_addr_t;
typedef unsigned long bus_size_t;
typedef struct bus_dma_segment {
bus_addr_t ds_addr; /* DMA address */
bus_size_t ds_len; /* length of transfer */
} bus_dma_segment_t;
struct bus_dma_tag {
uint32_t alignment;
uint32_t maxsize;
};
typedef void *bus_dmamap_t;
typedef struct bus_dma_tag *bus_dma_tag_t;
typedef enum {
BUS_DMA_LOCK = 0x01,
BUS_DMA_UNLOCK = 0x02,
} bus_dma_lock_op_t;
typedef void *bus_space_tag_t;
typedef uint8_t *bus_space_handle_t;
typedef int bus_dma_filter_t(void *, bus_addr_t);
typedef void bus_dma_lock_t(void *, bus_dma_lock_op_t);
typedef uint32_t bool;
/* SYSINIT API */
#include <sysinit.h>
struct sysinit {
void (*func) (void *arg);
void *data;
};
/* MUTEX API */
struct mtx {
int owned;
struct mtx *parent;
};
#define mtx_assert(...) do { } while (0)
void mtx_init(struct mtx *, const char *, const char *, int);
void mtx_lock(struct mtx *);
void mtx_unlock(struct mtx *);
#define mtx_lock_spin(x) mtx_lock(x)
#define mtx_unlock_spin(x) mtx_unlock(x)
int mtx_owned(struct mtx *);
void mtx_destroy(struct mtx *);
extern struct mtx Giant;
/* SX API */
struct sx {
int owned;
};
#define sx_assert(...) do { } while (0)
#define sx_init(...) sx_init_flags(__VA_ARGS__, 0)
void sx_init_flags(struct sx *, const char *, int);
void sx_destroy(struct sx *);
void sx_xlock(struct sx *);
void sx_xunlock(struct sx *);
int sx_xlocked(struct sx *);
/* CONDVAR API */
struct cv {
int sleeping;
};
void cv_init(struct cv *, const char *desc);
void cv_destroy(struct cv *);
void cv_wait(struct cv *, struct mtx *);
int cv_timedwait(struct cv *, struct mtx *, int);
void cv_signal(struct cv *);
void cv_broadcast(struct cv *);
/* CALLOUT API */
typedef void callout_fn_t (void *);
extern volatile int ticks;
struct callout {
LIST_ENTRY(callout) entry;
callout_fn_t *c_func;
void *c_arg;
struct mtx *mtx;
int flags;
int timeout;
};
void callout_init_mtx(struct callout *, struct mtx *, int);
void callout_reset(struct callout *, int, callout_fn_t *, void *);
void callout_stop(struct callout *);
void callout_drain(struct callout *);
int callout_pending(struct callout *);
void callout_process(int timeout);
/* DEVICE API */
struct driver;
struct devclass;
struct device;
struct module;
struct module_data;
typedef struct driver driver_t;
typedef struct devclass *devclass_t;
typedef struct device *device_t;
typedef void (driver_intr_t)(void *arg);
typedef int (driver_filter_t)(void *arg);
#define FILTER_STRAY 0x01
#define FILTER_HANDLED 0x02
#define FILTER_SCHEDULE_THREAD 0x04
typedef int device_attach_t (device_t dev);
typedef int device_detach_t (device_t dev);
typedef int device_resume_t (device_t dev);
typedef int device_shutdown_t (device_t dev);
typedef int device_probe_t (device_t dev);
typedef int device_suspend_t (device_t dev);
typedef int gpio_pin_set_t (device_t dev, uint32_t, unsigned int);
typedef int gpio_pin_setflags_t (device_t dev, uint32_t, uint32_t);
typedef int bus_child_location_str_t (device_t parent, device_t child, char *buf, size_t buflen);
typedef int bus_child_pnpinfo_str_t (device_t parent, device_t child, char *buf, size_t buflen);
typedef void bus_driver_added_t (device_t dev, driver_t *driver);
struct device_method {
const char *desc;
void *const func;
};
typedef struct device_method device_method_t;
struct device {
TAILQ_HEAD(device_list, device) dev_children;
TAILQ_ENTRY(device) dev_link;
struct device *dev_parent;
const struct module_data *dev_module;
void *dev_sc;
void *dev_aux;
driver_filter_t *dev_irq_filter;
driver_intr_t *dev_irq_fn;
void *dev_irq_arg;
uint16_t dev_unit;
char dev_nameunit[64];
char dev_desc[64];
uint8_t dev_res_alloc:1;
uint8_t dev_quiet:1;
uint8_t dev_softc_set:1;
uint8_t dev_softc_alloc:1;
uint8_t dev_attached:1;
uint8_t dev_fixed_class:1;
uint8_t dev_unit_manual:1;
};
struct devclass {
device_t dev_list[DEVCLASS_MAXUNIT];
};
struct driver {
const char *name;
const struct device_method *methods;
uint32_t size;
};
struct module_data {
int (*callback) (struct module *, int, void *arg);
void *arg;
const char *bus_name;
const char *mod_name;
const char *long_name;
const struct driver *driver;
struct devclass **devclass_pp;
TAILQ_ENTRY(module_data) entry;
};
device_t device_get_parent(device_t dev);
void *device_get_method(device_t dev, const char *what);
const char *device_get_name(device_t dev);
const char *device_get_nameunit(device_t dev);
#define device_printf(dev, fmt,...) \
printf("%s: " fmt, device_get_nameunit(dev),## __VA_ARGS__)
device_t device_add_child(device_t dev, const char *name, int unit);
void device_quiet(device_t dev);
void device_set_interrupt(device_t dev, driver_filter_t *, driver_intr_t *, void *);
void device_run_interrupts(device_t parent);
void device_set_ivars(device_t dev, void *ivars);
void *device_get_ivars(device_t dev);
const char *device_get_desc(device_t dev);
int device_probe_and_attach(device_t dev);
int device_detach(device_t dev);
void *device_get_softc(device_t dev);
void device_set_softc(device_t dev, void *softc);
int device_delete_child(device_t dev, device_t child);
int device_delete_children(device_t dev);
int device_is_attached(device_t dev);
void device_set_desc(device_t dev, const char *desc);
void device_set_desc_copy(device_t dev, const char *desc);
int device_get_unit(device_t dev);
void *devclass_get_softc(devclass_t dc, int unit);
int devclass_get_maxunit(devclass_t dc);
device_t devclass_get_device(devclass_t dc, int unit);
devclass_t devclass_find(const char *classname);
#define bus_get_dma_tag(...) (NULL)
int bus_generic_detach(device_t dev);
int bus_generic_resume(device_t dev);
int bus_generic_shutdown(device_t dev);
int bus_generic_suspend(device_t dev);
int bus_generic_print_child(device_t dev, device_t child);
void bus_generic_driver_added(device_t dev, driver_t *driver);
int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp);
/* BUS SPACE API */
void bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint8_t data);
void bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint16_t data);
void bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint32_t data);
uint8_t bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset);
uint16_t bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset);
uint32_t bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset);
void bus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint8_t *datap, bus_size_t count);
void bus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint16_t *datap, bus_size_t count);
void bus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint32_t *datap, bus_size_t count);
void bus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint8_t *datap, bus_size_t count);
void bus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint16_t *datap, bus_size_t count);
void bus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint32_t *datap, bus_size_t count);
void bus_space_read_region_1(bus_space_tag_t space, bus_space_handle_t handle, bus_size_t offset, uint8_t *datap, bus_size_t count);
void bus_space_write_region_1(bus_space_tag_t space, bus_space_handle_t handle, bus_size_t offset, uint8_t *datap, bus_size_t count);
void bus_space_read_region_4(bus_space_tag_t space, bus_space_handle_t handle, bus_size_t offset, uint32_t *datap, bus_size_t count);
void bus_space_write_region_4(bus_space_tag_t space, bus_space_handle_t handle, bus_size_t offset, uint32_t *datap, bus_size_t count);
void bus_space_barrier(bus_space_tag_t space, bus_space_handle_t handle, bus_size_t offset, bus_size_t length, int flags);
void module_register(void *);
/* LIB-C */
void *memset(void *, int, size_t len);
void *memcpy(void *, const void *, size_t len);
int printf(const char *,...) __printflike(1, 2);
int snprintf(char *restrict str, size_t size, const char *restrict format,...) __printflike(3, 4);
size_t strlen(const char *s);
/* MALLOC API */
#undef malloc
#define malloc(s,x,f) usb_malloc(s)
void *usb_malloc(size_t);
#undef free
#define free(p,x) usb_free(p)
void usb_free(void *);
#define strdup(p,x) usb_strdup(p)
char *usb_strdup(const char *str);
/* ENDIANNESS */
#ifndef HAVE_ENDIAN_DEFS
/* Assume little endian */
#define htole64(x) ((uint64_t)(x))
#define le64toh(x) ((uint64_t)(x))
#define htole32(x) ((uint32_t)(x))
#define le32toh(x) ((uint32_t)(x))
#define htole16(x) ((uint16_t)(x))
#define le16toh(x) ((uint16_t)(x))
#define be32toh(x) ((uint32_t)(x))
#define htobe32(x) ((uint32_t)(x))
#else
#include <sys/endian.h>
#endif
/* USB */
typedef int usb_handle_request_t (device_t dev, const void *req, void **pptr, uint16_t *plen, uint16_t offset, uint8_t *pstate);
typedef int usb_take_controller_t (device_t dev);
void usb_idle(void);
void usb_init(void);
void usb_uninit(void);
/* set some defaults */
#ifndef USB_POOL_SIZE
#define USB_POOL_SIZE (1024*1024) /* 1 MByte */
#endif
int pause(const char *, int);
void DELAY(unsigned int);
/* OTHER */
struct selinfo {
};
/* SYSTEM STARTUP API */
extern const void *sysinit_data[];
extern const void *sysuninit_data[];
/* Resources */
enum intr_type {
INTR_TYPE_TTY = 1,
INTR_TYPE_BIO = 2,
INTR_TYPE_NET = 4,
INTR_TYPE_CAM = 8,
INTR_TYPE_MISC = 16,
INTR_TYPE_CLK = 32,
INTR_TYPE_AV = 64,
INTR_EXCL = 256, /* exclusive interrupt */
INTR_MPSAFE = 512, /* this interrupt is SMP safe */
INTR_ENTROPY = 1024, /* this interrupt provides entropy */
INTR_MD1 = 4096, /* flag reserved for MD use */
INTR_MD2 = 8192, /* flag reserved for MD use */
INTR_MD3 = 16384, /* flag reserved for MD use */
INTR_MD4 = 32768 /* flag reserved for MD use */
};
struct resource_i {
u_long r_start; /* index of the first entry in this resource */
u_long r_end; /* index of the last entry (inclusive) */
};
struct resource {
struct resource_i *__r_i;
bus_space_tag_t r_bustag; /* bus_space tag */
bus_space_handle_t r_bushandle; /* bus_space handle */
};
struct resource_spec {
int type;
int rid;
int flags;
};
#define SYS_RES_IRQ 1 /* interrupt lines */
#define SYS_RES_DRQ 2 /* isa dma lines */
#define SYS_RES_MEMORY 3 /* i/o memory */
#define SYS_RES_IOPORT 4 /* i/o ports */
#define RF_ALLOCATED 0x0001 /* resource has been reserved */
#define RF_ACTIVE 0x0002 /* resource allocation has been activated */
#define RF_SHAREABLE 0x0004 /* resource permits contemporaneous sharing */
#define RF_SPARE1 0x0008
#define RF_SPARE2 0x0010
#define RF_FIRSTSHARE 0x0020 /* first in sharing list */
#define RF_PREFETCHABLE 0x0040 /* resource is prefetchable */
#define RF_OPTIONAL 0x0080 /* for bus_alloc_resources() */
int bus_alloc_resources(device_t, struct resource_spec *, struct resource **);
int bus_release_resource(device_t, int, int, struct resource *);
void bus_release_resources(device_t, const struct resource_spec *,
struct resource **);
struct resource *bus_alloc_resource_any(device_t, int, int *, unsigned int);
int bus_generic_attach(device_t);
bus_space_tag_t rman_get_bustag(struct resource *);
bus_space_handle_t rman_get_bushandle(struct resource *);
u_long rman_get_size(struct resource *);
int bus_setup_intr(device_t, struct resource *, int, driver_filter_t,
driver_intr_t, void *, void **);
int bus_teardown_intr(device_t, struct resource *, void *);
int ofw_bus_status_okay(device_t);
int ofw_bus_is_compatible(device_t, char *);
extern int (*bus_alloc_resource_any_cb)(struct resource *res, device_t dev,
int type, int *rid, unsigned int flags);
extern int (*ofw_bus_status_ok_cb)(device_t dev);
extern int (*ofw_bus_is_compatible_cb)(device_t dev, char *name);
#ifndef strlcpy
#define strlcpy(d,s,n) snprintf((d),(n),"%s",(s))
#endif
/* Should be defined in user application since it is machine-dependent */
extern int delay(unsigned int);
/* BUS dma */
#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
#define BUS_SPACE_MAXADDR 0xFFFFFFFF
#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
#define BUS_SPACE_MAXSIZE 0xFFFFFFFF
#define BUS_DMA_WAITOK 0x00 /* safe to sleep (pseudo-flag) */
#define BUS_DMA_NOWAIT 0x01 /* not safe to sleep */
#define BUS_DMA_ALLOCNOW 0x02 /* perform resource allocation now */
#define BUS_DMA_COHERENT 0x04 /* hint: map memory in a coherent way */
#define BUS_DMA_ZERO 0x08 /* allocate zero'ed memory */
#define BUS_DMA_BUS1 0x10 /* placeholders for bus functions... */
#define BUS_DMA_BUS2 0x20
#define BUS_DMA_BUS3 0x40
#define BUS_DMA_BUS4 0x80
typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
int
bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
bus_size_t boundary, bus_addr_t lowaddr,
bus_addr_t highaddr, bus_dma_filter_t *filter,
void *filterarg, bus_size_t maxsize, int nsegments,
bus_size_t maxsegsz, int flags, bus_dma_lock_t *lockfunc,
void *lockfuncarg, bus_dma_tag_t *dmat);
int bus_dmamem_alloc(bus_dma_tag_t dmat, void** vaddr, int flags,
bus_dmamap_t *mapp);
void bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map);
int bus_dma_tag_destroy(bus_dma_tag_t dmat);
#endif /* _BSD_KERNEL_H_ */