3 * Copyright (c) 2011 Hans Petter Selasky. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #ifndef _BSD_KERNEL_H_
28 #define _BSD_KERNEL_H_
31 #undef __FreeBSD_version
32 #define __FreeBSD_version 1100000
34 #include <sys/cdefs.h>
35 #include <sys/queue.h>
36 #include <sys/errno.h>
38 #define howmany(x, y) (((x)+((y)-1))/(y))
39 #define nitems(x) (sizeof((x)) / sizeof((x)[0]))
40 #define isalpha(x) (((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z'))
41 #define isdigit(x) ((x) >= '0' && (x) <= '9')
42 #define panic(...) do { printf("USB PANIC: " __VA_ARGS__); while (1) ; } while (0)
46 #define USB_PROC_MAX 3
47 #define USB_BUS_GIANT_PROC(bus) (usb_process + 2)
48 #define USB_BUS_NON_GIANT_BULK_PROC(bus) (usb_process + 2)
49 #define USB_BUS_NON_GIANT_ISOC_PROC(bus) (usb_process + 2)
50 #define USB_BUS_EXPLORE_PROC(bus) (usb_process + 0)
51 #define USB_BUS_CONTROL_XFER_PROC(bus) (usb_process + 1)
52 #define SYSCTL_DECL(...)
53 struct sysctl_ctx_list {
58 #define SYSCTL_HANDLER_ARGS void *oidp, void *arg1, \
59 uint32_t arg2, struct sysctl_req *req
60 #define SYSCTL_NODE(name,...) struct { } name __used
61 #define SYSCTL_INT(...)
62 #define SYSCTL_UINT(...)
63 #define SYSCTL_PROC(...)
64 #define SYSCTL_ADD_NODE(...) NULL
65 #define SYSCTL_ADD_U16(...) NULL
66 #define SYSCTL_ADD_PROC(...) NULL
67 #define sysctl_handle_int(...) EOPNOTSUPP
68 #define sysctl_handle_string(...) EOPNOTSUPP
69 #define sysctl_ctx_init(ctx) do { (void)(ctx); } while (0)
70 #define sysctl_ctx_free(ctx) do { (void)(ctx); } while (0)
71 #define TUNABLE_INT(...)
72 #define MALLOC_DECLARE(...)
73 #define MALLOC_DEFINE(...)
74 #define EVENTHANDLER_DECLARE(...)
75 #define EVENTHANDLER_INVOKE(...)
77 #define SCHEDULER_STOPPED(x) (0)
78 #define PI_SWI(...) (0)
79 #define UNIQ_NAME(x) x
80 #define UNIQ_NAME_STR(x) #x
81 #define DEVCLASS_MAXUNIT 32
84 #define DEVMETHOD(what,func) { #what, (void *)&func }
85 #define DEVMETHOD_END {0,0}
86 #define EARLY_DRIVER_MODULE(a, b, c, d, e, f, g) DRIVER_MODULE(a, b, c, d, e, f)
87 #define DRIVER_MODULE(name, busname, driver, devclass, evh, arg) \
88 static struct module_data bsd_##name##_##busname##_driver_mod = { \
89 evh, arg, #busname, #name, #busname "/" #name, \
90 &driver, &devclass, { 0, 0 } }; \
91 SYSINIT(bsd_##name##_##busname##_driver_mod, SI_SUB_DRIVERS, \
92 SI_ORDER_MIDDLE, module_register, \
93 &bsd_##name##_##busname##_driver_mod)
94 #define SYSINIT(uniq, subs, order, _func, _data) \
95 const struct sysinit UNIQ_NAME(sysinit_##uniq) = { \
97 .data = __DECONST(void *, _data) \
99 SYSINIT_ENTRY(uniq##_entry, "sysinit", (subs), \
100 (order), "const struct sysinit", \
101 UNIQ_NAME_STR(sysinit_##uniq), "SYSINIT")
103 #define SYSUNINIT(uniq, subs, order, _func, _data) \
104 const struct sysinit UNIQ_NAME(sysuninit_##uniq) = { \
106 .data = __DECONST(void *, _data) \
108 SYSINIT_ENTRY(uniq##_entry, "sysuninit", (subs), \
109 (order), "const struct sysuninit", \
110 UNIQ_NAME_STR(sysuninit_##uniq), "SYSUNINIT")
111 #define MODULE_DEPEND(...)
112 #define MODULE_VERSION(...)
113 #define NULL ((void *)0)
114 #define BUS_SPACE_BARRIER_READ 0x01
115 #define BUS_SPACE_BARRIER_WRITE 0x02
118 #define PAGE_SIZE 4096
120 #define MIN(a,b) (((a) < (b)) ? (a) : (b))
122 #define MAX(a,b) (((a) > (b)) ? (a) : (b))
125 #define MTX_RECURSE 0
127 #define SX_NOWITNESS 0
128 #define WITNESS_WARN(...)
130 #define BUS_PROBE_GENERIC 0
131 #define BUS_PROBE_DEFAULT (-20)
132 #define CALLOUT_RETURNUNLOCKED 0x1
134 #define ffs(x) __builtin_ffs(x)
136 #define va_list __builtin_va_list
138 #define va_size(type) __builtin_va_size(type)
140 #define va_start(ap, last) __builtin_va_start(ap, last)
142 #define va_end(ap) __builtin_va_end(ap)
144 #define va_arg(ap, type) __builtin_va_arg((ap), type)
145 #define DEVICE_ATTACH(dev, ...) \
146 (((device_attach_t *)(device_get_method(dev, "device_attach")))(dev,## __VA_ARGS__))
147 #define DEVICE_DETACH(dev, ...) \
148 (((device_detach_t *)(device_get_method(dev, "device_detach")))(dev,## __VA_ARGS__))
149 #define DEVICE_PROBE(dev, ...) \
150 (((device_probe_t *)(device_get_method(dev, "device_probe")))(dev,## __VA_ARGS__))
151 #define DEVICE_RESUME(dev, ...) \
152 (((device_resume_t *)(device_get_method(dev, "device_resume")))(dev,## __VA_ARGS__))
153 #define DEVICE_SHUTDOWN(dev, ...) \
154 (((device_shutdown_t *)(device_get_method(dev, "device_shutdown")))(dev,## __VA_ARGS__))
155 #define DEVICE_SUSPEND(dev, ...) \
156 (((device_suspend_t *)(device_get_method(dev, "device_suspend")))(dev,## __VA_ARGS__))
157 #define USB_HANDLE_REQUEST(dev, ...) \
158 (((usb_handle_request_t *)(device_get_method(dev, "usb_handle_request")))(dev,## __VA_ARGS__))
159 #define USB_TAKE_CONTROLLER(dev, ...) \
160 (((usb_take_controller_t *)(device_get_method(dev, "usb_take_controller")))(dev,## __VA_ARGS__))
161 #define GPIO_PIN_SET(dev, ...) \
162 (((gpio_pin_set_t *)(device_get_method(dev, "gpio_pin_set")))(dev,## __VA_ARGS__))
163 #define GPIO_PIN_SETFLAGS(dev, ...) \
164 (((gpio_pin_setflags_t *)(device_get_method(dev, "gpio_pin_setflags")))(dev,## __VA_ARGS__))
167 SI_SUB_DUMMY = 0x0000000,
168 SI_SUB_LOCK = 0x1B00000,
169 SI_SUB_KLD = 0x2000000,
170 SI_SUB_DRIVERS = 0x3100000,
171 SI_SUB_PSEUDO = 0x7000000,
172 SI_SUB_KICK_SCHEDULER = 0xa000000,
173 SI_SUB_RUN_SCHEDULER = 0xfffffff
177 SI_ORDER_FIRST = 0x0000000,
178 SI_ORDER_SECOND = 0x0000001,
179 SI_ORDER_THIRD = 0x0000002,
180 SI_ORDER_FOURTH = 0x0000003,
181 SI_ORDER_MIDDLE = 0x1000000,
182 SI_ORDER_ANY = 0xfffffff /* last */
191 #define INT32_MAX 0x7fffffff
194 #ifndef HAVE_STANDARD_DEFS
195 #define _UINT8_T_DECLARED
196 typedef unsigned char uint8_t;
197 #define _INT8_T_DECLARED
198 typedef signed char int8_t;
199 #define _UINT16_T_DECLARED
200 typedef unsigned short uint16_t;
201 #define _INT16_T_DECLARED
202 typedef signed short int16_t;
203 #define _UINT32_T_DECLARED
204 typedef unsigned int uint32_t;
205 #define _INT32_T_DECLARED
206 typedef signed int int32_t;
207 #define _UINT64_T_DECLARED
209 typedef unsigned long long uint64_t;
211 typedef unsigned long uint64_t;
213 #define _INT64_T_DECLARED
215 typedef signed long long int64_t;
217 typedef signed long int64_t;
220 typedef uint16_t uid_t;
221 typedef uint16_t gid_t;
222 typedef uint16_t mode_t;
224 typedef uint8_t *caddr_t;
225 #define _UINTPTR_T_DECLARED
226 typedef unsigned long uintptr_t;
228 #define _SIZE_T_DECLARED
229 typedef unsigned long size_t;
230 typedef unsigned long u_long;
233 typedef unsigned long bus_addr_t;
234 typedef unsigned long bus_size_t;
236 typedef struct bus_dma_segment {
237 bus_addr_t ds_addr; /* DMA address */
238 bus_size_t ds_len; /* length of transfer */
246 typedef void *bus_dmamap_t;
247 typedef struct bus_dma_tag *bus_dma_tag_t;
251 BUS_DMA_UNLOCK = 0x02,
254 typedef void *bus_space_tag_t;
255 typedef uint8_t *bus_space_handle_t;
256 typedef int bus_dma_filter_t(void *, bus_addr_t);
257 typedef void bus_dma_lock_t(void *, bus_dma_lock_op_t);
259 typedef uint32_t bool;
266 void (*func) (void *arg);
277 #define mtx_assert(...) do { } while (0)
278 void mtx_init(struct mtx *, const char *, const char *, int);
279 void mtx_lock(struct mtx *);
280 void mtx_unlock(struct mtx *);
281 #define mtx_lock_spin(x) mtx_lock(x)
282 #define mtx_unlock_spin(x) mtx_unlock(x)
283 int mtx_owned(struct mtx *);
284 void mtx_destroy(struct mtx *);
286 extern struct mtx Giant;
294 #define sx_assert(...) do { } while (0)
295 #define sx_init(...) sx_init_flags(__VA_ARGS__, 0)
296 void sx_init_flags(struct sx *, const char *, int);
297 void sx_destroy(struct sx *);
298 void sx_xlock(struct sx *);
299 void sx_xunlock(struct sx *);
300 int sx_xlocked(struct sx *);
308 void cv_init(struct cv *, const char *desc);
309 void cv_destroy(struct cv *);
310 void cv_wait(struct cv *, struct mtx *);
311 int cv_timedwait(struct cv *, struct mtx *, int);
312 void cv_signal(struct cv *);
313 void cv_broadcast(struct cv *);
317 typedef void callout_fn_t (void *);
319 extern volatile int ticks;
322 LIST_ENTRY(callout) entry;
323 callout_fn_t *c_func;
330 void callout_init_mtx(struct callout *, struct mtx *, int);
331 void callout_reset(struct callout *, int, callout_fn_t *, void *);
332 void callout_stop(struct callout *);
333 void callout_drain(struct callout *);
334 int callout_pending(struct callout *);
335 void callout_process(int timeout);
345 typedef struct driver driver_t;
346 typedef struct devclass *devclass_t;
347 typedef struct device *device_t;
348 typedef void (driver_intr_t)(void *arg);
349 typedef int (driver_filter_t)(void *arg);
350 #define FILTER_STRAY 0x01
351 #define FILTER_HANDLED 0x02
352 #define FILTER_SCHEDULE_THREAD 0x04
354 typedef int device_attach_t (device_t dev);
355 typedef int device_detach_t (device_t dev);
356 typedef int device_resume_t (device_t dev);
357 typedef int device_shutdown_t (device_t dev);
358 typedef int device_probe_t (device_t dev);
359 typedef int device_suspend_t (device_t dev);
360 typedef int gpio_pin_set_t (device_t dev, uint32_t, unsigned int);
361 typedef int gpio_pin_setflags_t (device_t dev, uint32_t, uint32_t);
363 typedef int bus_child_location_str_t (device_t parent, device_t child, char *buf, size_t buflen);
364 typedef int bus_child_pnpinfo_str_t (device_t parent, device_t child, char *buf, size_t buflen);
365 typedef void bus_driver_added_t (device_t dev, driver_t *driver);
367 struct device_method {
372 typedef struct device_method device_method_t;
375 TAILQ_HEAD(device_list, device) dev_children;
376 TAILQ_ENTRY(device) dev_link;
378 struct device *dev_parent;
379 const struct module_data *dev_module;
382 driver_filter_t *dev_irq_filter;
383 driver_intr_t *dev_irq_fn;
388 char dev_nameunit[64];
391 uint8_t dev_res_alloc:1;
393 uint8_t dev_softc_set:1;
394 uint8_t dev_softc_alloc:1;
395 uint8_t dev_attached:1;
396 uint8_t dev_fixed_class:1;
397 uint8_t dev_unit_manual:1;
401 device_t dev_list[DEVCLASS_MAXUNIT];
406 const struct device_method *methods;
411 int (*callback) (struct module *, int, void *arg);
413 const char *bus_name;
414 const char *mod_name;
415 const char *long_name;
416 const struct driver *driver;
417 struct devclass **devclass_pp;
418 TAILQ_ENTRY(module_data) entry;
421 device_t device_get_parent(device_t dev);
422 void *device_get_method(device_t dev, const char *what);
423 const char *device_get_name(device_t dev);
424 const char *device_get_nameunit(device_t dev);
426 #define device_printf(dev, fmt,...) \
427 printf("%s: " fmt, device_get_nameunit(dev),## __VA_ARGS__)
428 device_t device_add_child(device_t dev, const char *name, int unit);
429 void device_quiet(device_t dev);
430 void device_set_interrupt(device_t dev, driver_filter_t *, driver_intr_t *, void *);
431 void device_run_interrupts(device_t parent);
432 void device_set_ivars(device_t dev, void *ivars);
433 void *device_get_ivars(device_t dev);
434 const char *device_get_desc(device_t dev);
435 int device_probe_and_attach(device_t dev);
436 int device_detach(device_t dev);
437 void *device_get_softc(device_t dev);
438 void device_set_softc(device_t dev, void *softc);
439 int device_delete_child(device_t dev, device_t child);
440 int device_delete_children(device_t dev);
441 int device_is_attached(device_t dev);
442 void device_set_desc(device_t dev, const char *desc);
443 void device_set_desc_copy(device_t dev, const char *desc);
444 int device_get_unit(device_t dev);
445 void *devclass_get_softc(devclass_t dc, int unit);
446 int devclass_get_maxunit(devclass_t dc);
447 device_t devclass_get_device(devclass_t dc, int unit);
448 devclass_t devclass_find(const char *classname);
450 #define bus_get_dma_tag(...) (NULL)
451 int bus_generic_detach(device_t dev);
452 int bus_generic_resume(device_t dev);
453 int bus_generic_shutdown(device_t dev);
454 int bus_generic_suspend(device_t dev);
455 int bus_generic_print_child(device_t dev, device_t child);
456 void bus_generic_driver_added(device_t dev, driver_t *driver);
457 int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
458 bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp);
462 void bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint8_t data);
463 void bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint16_t data);
464 void bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset, uint32_t data);
466 uint8_t bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset);
467 uint16_t bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset);
468 uint32_t bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t offset);
470 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);
471 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);
472 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);
474 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);
475 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);
476 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);
478 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);
479 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);
480 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);
481 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);
483 void bus_space_barrier(bus_space_tag_t space, bus_space_handle_t handle, bus_size_t offset, bus_size_t length, int flags);
485 void module_register(void *);
489 void *memset(void *, int, size_t len);
490 void *memcpy(void *, const void *, size_t len);
491 int printf(const char *,...) __printflike(1, 2);
492 int snprintf(char *restrict str, size_t size, const char *restrict format,...) __printflike(3, 4);
493 size_t strlen(const char *s);
498 #define malloc(s,x,f) usb_malloc(s)
499 void *usb_malloc(size_t);
502 #define free(p,x) usb_free(p)
503 void usb_free(void *);
505 #define strdup(p,x) usb_strdup(p)
506 char *usb_strdup(const char *str);
510 #ifndef HAVE_ENDIAN_DEFS
512 /* Assume little endian */
514 #define htole64(x) ((uint64_t)(x))
515 #define le64toh(x) ((uint64_t)(x))
517 #define htole32(x) ((uint32_t)(x))
518 #define le32toh(x) ((uint32_t)(x))
520 #define htole16(x) ((uint16_t)(x))
521 #define le16toh(x) ((uint16_t)(x))
523 #define be32toh(x) ((uint32_t)(x))
524 #define htobe32(x) ((uint32_t)(x))
527 #include <sys/endian.h>
532 typedef int usb_handle_request_t (device_t dev, const void *req, void **pptr, uint16_t *plen, uint16_t offset, uint8_t *pstate);
533 typedef int usb_take_controller_t (device_t dev);
537 void usb_uninit(void);
539 /* set some defaults */
541 #ifndef USB_POOL_SIZE
542 #define USB_POOL_SIZE (1024*1024) /* 1 MByte */
545 int pause(const char *, int);
546 void DELAY(unsigned int);
553 /* SYSTEM STARTUP API */
555 extern const void *sysinit_data[];
556 extern const void *sysuninit_data[];
568 INTR_EXCL = 256, /* exclusive interrupt */
569 INTR_MPSAFE = 512, /* this interrupt is SMP safe */
570 INTR_ENTROPY = 1024, /* this interrupt provides entropy */
571 INTR_MD1 = 4096, /* flag reserved for MD use */
572 INTR_MD2 = 8192, /* flag reserved for MD use */
573 INTR_MD3 = 16384, /* flag reserved for MD use */
574 INTR_MD4 = 32768 /* flag reserved for MD use */
578 u_long r_start; /* index of the first entry in this resource */
579 u_long r_end; /* index of the last entry (inclusive) */
583 struct resource_i *__r_i;
584 bus_space_tag_t r_bustag; /* bus_space tag */
585 bus_space_handle_t r_bushandle; /* bus_space handle */
588 struct resource_spec {
594 #define SYS_RES_IRQ 1 /* interrupt lines */
595 #define SYS_RES_DRQ 2 /* isa dma lines */
596 #define SYS_RES_MEMORY 3 /* i/o memory */
597 #define SYS_RES_IOPORT 4 /* i/o ports */
599 #define RF_ALLOCATED 0x0001 /* resource has been reserved */
600 #define RF_ACTIVE 0x0002 /* resource allocation has been activated */
601 #define RF_SHAREABLE 0x0004 /* resource permits contemporaneous sharing */
602 #define RF_SPARE1 0x0008
603 #define RF_SPARE2 0x0010
604 #define RF_FIRSTSHARE 0x0020 /* first in sharing list */
605 #define RF_PREFETCHABLE 0x0040 /* resource is prefetchable */
606 #define RF_OPTIONAL 0x0080 /* for bus_alloc_resources() */
608 int bus_alloc_resources(device_t, struct resource_spec *, struct resource **);
609 int bus_release_resource(device_t, int, int, struct resource *);
610 void bus_release_resources(device_t, const struct resource_spec *,
612 struct resource *bus_alloc_resource_any(device_t, int, int *, unsigned int);
613 int bus_generic_attach(device_t);
614 bus_space_tag_t rman_get_bustag(struct resource *);
615 bus_space_handle_t rman_get_bushandle(struct resource *);
616 u_long rman_get_size(struct resource *);
617 int bus_setup_intr(device_t, struct resource *, int, driver_filter_t,
618 driver_intr_t, void *, void **);
619 int bus_teardown_intr(device_t, struct resource *, void *);
620 int ofw_bus_status_okay(device_t);
621 int ofw_bus_is_compatible(device_t, char *);
623 extern int (*bus_alloc_resource_any_cb)(struct resource *res, device_t dev,
624 int type, int *rid, unsigned int flags);
625 extern int (*ofw_bus_status_ok_cb)(device_t dev);
626 extern int (*ofw_bus_is_compatible_cb)(device_t dev, char *name);
629 #define strlcpy(d,s,n) snprintf((d),(n),"%s",(s))
632 /* Should be defined in user application since it is machine-dependent */
633 extern int delay(unsigned int);
636 #define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
637 #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
638 #define BUS_SPACE_MAXADDR 0xFFFFFFFF
639 #define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
640 #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
641 #define BUS_SPACE_MAXSIZE 0xFFFFFFFF
643 #define BUS_DMA_WAITOK 0x00 /* safe to sleep (pseudo-flag) */
644 #define BUS_DMA_NOWAIT 0x01 /* not safe to sleep */
645 #define BUS_DMA_ALLOCNOW 0x02 /* perform resource allocation now */
646 #define BUS_DMA_COHERENT 0x04 /* hint: map memory in a coherent way */
647 #define BUS_DMA_ZERO 0x08 /* allocate zero'ed memory */
648 #define BUS_DMA_BUS1 0x10 /* placeholders for bus functions... */
649 #define BUS_DMA_BUS2 0x20
650 #define BUS_DMA_BUS3 0x40
651 #define BUS_DMA_BUS4 0x80
653 typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
656 bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
657 bus_size_t boundary, bus_addr_t lowaddr,
658 bus_addr_t highaddr, bus_dma_filter_t *filter,
659 void *filterarg, bus_size_t maxsize, int nsegments,
660 bus_size_t maxsegsz, int flags, bus_dma_lock_t *lockfunc,
661 void *lockfuncarg, bus_dma_tag_t *dmat);
663 int bus_dmamem_alloc(bus_dma_tag_t dmat, void** vaddr, int flags,
665 void bus_dmamem_free(bus_dma_tag_t dmat, void *vaddr, bus_dmamap_t map);
666 int bus_dma_tag_destroy(bus_dma_tag_t dmat);
668 #endif /* _BSD_KERNEL_H_ */