9 # include "dwc_modpow.h"
11 # include "dwc_crypto.h"
15 # include "dwc_notifier.h"
18 /* OS-Level Implementations */
20 /* This is the NetBSD 4.0.1 kernel implementation of the DWC platform library. */
25 void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size)
27 return memset(dest, byte, size);
30 void *DWC_MEMCPY(void *dest, void const *src, uint32_t size)
32 return memcpy(dest, src, size);
35 void *DWC_MEMMOVE(void *dest, void *src, uint32_t size)
37 bcopy(src, dest, size);
41 int DWC_MEMCMP(void *m1, void *m2, uint32_t size)
43 return memcmp(m1, m2, size);
46 int DWC_STRNCMP(void *s1, void *s2, uint32_t size)
48 return strncmp(s1, s2, size);
51 int DWC_STRCMP(void *s1, void *s2)
53 return strcmp(s1, s2);
56 int DWC_STRLEN(char const *str)
61 char *DWC_STRCPY(char *to, char const *from)
63 return strcpy(to, from);
66 char *DWC_STRDUP(char const *str)
68 int len = DWC_STRLEN(str) + 1;
69 char *new = DWC_ALLOC_ATOMIC(len);
75 DWC_MEMCPY(new, str, len);
79 int DWC_ATOI(char *str, int32_t *value)
83 /* NetBSD doesn't have 'strtol' in the kernel, but 'strtoul'
84 * should be equivalent on 2's complement machines
86 *value = strtoul(str, &end, 0);
94 int DWC_ATOUI(char *str, uint32_t *value)
98 *value = strtoul(str, &end, 0);
108 /* From usbstring.c */
110 int DWC_UTF8_TO_UTF16LE(uint8_t const *s, uint16_t *cp, unsigned len)
116 /* this insists on correct encodings, though not minimal ones.
117 * BUT it currently rejects legit 4-byte UTF-8 code points,
118 * which need surrogate pairs. (Unicode 3.1 can use them.)
120 while (len != 0 && (c = (u8) *s++) != 0) {
121 if (unlikely(c & 0x80)) {
123 // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
124 if ((c & 0xe0) == 0xc0) {
125 uchar = (c & 0x1f) << 6;
128 if ((c & 0xc0) != 0xc0)
133 // 3-byte sequence (most CJKV characters):
134 // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
135 } else if ((c & 0xf0) == 0xe0) {
136 uchar = (c & 0x0f) << 12;
139 if ((c & 0xc0) != 0xc0)
145 if ((c & 0xc0) != 0xc0)
150 /* no bogus surrogates */
151 if (0xd800 <= uchar && uchar <= 0xdfff)
154 // 4-byte sequence (surrogate pairs, currently rare):
155 // 11101110wwwwzzzzyy + 110111yyyyxxxxxx
156 // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
157 // (uuuuu = wwww + 1)
158 // FIXME accept the surrogate code points (only)
163 put_unaligned (cpu_to_le16 (uchar), cp++);
172 #endif /* DWC_UTFLIB */
177 dwc_bool_t DWC_IN_IRQ(void)
183 dwc_bool_t DWC_IN_BH(void)
185 // return in_softirq();
189 void DWC_VPRINTF(char *format, va_list args)
191 vprintf(format, args);
194 int DWC_VSNPRINTF(char *str, int size, char *format, va_list args)
196 return vsnprintf(str, size, format, args);
199 void DWC_PRINTF(char *format, ...)
203 va_start(args, format);
204 DWC_VPRINTF(format, args);
208 int DWC_SPRINTF(char *buffer, char *format, ...)
213 va_start(args, format);
214 retval = vsprintf(buffer, format, args);
219 int DWC_SNPRINTF(char *buffer, int size, char *format, ...)
224 va_start(args, format);
225 retval = vsnprintf(buffer, size, format, args);
230 void __DWC_WARN(char *format, ...)
234 va_start(args, format);
235 DWC_VPRINTF(format, args);
239 void __DWC_ERROR(char *format, ...)
243 va_start(args, format);
244 DWC_VPRINTF(format, args);
248 void DWC_EXCEPTION(char *format, ...)
252 va_start(args, format);
253 DWC_VPRINTF(format, args);
259 void __DWC_DEBUG(char *format, ...)
263 va_start(args, format);
264 DWC_VPRINTF(format, args);
273 dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size,
277 struct dma_pool *pool = dma_pool_create("Pool", NULL,
279 return (dwc_pool_t *)pool;
282 void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool)
284 dma_pool_destroy((struct dma_pool *)pool);
287 void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr)
289 // return dma_pool_alloc((struct dma_pool *)pool, GFP_KERNEL, dma_addr);
290 return dma_pool_alloc((struct dma_pool *)pool, M_WAITOK, dma_addr);
293 void *DWC_DMA_POOL_ZALLOC(dwc_pool_t *pool, uint64_t *dma_addr)
295 void *vaddr = DWC_DMA_POOL_ALLOC(pool, dma_addr);
299 void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr)
301 dma_pool_free(pool, vaddr, daddr);
305 void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr)
307 dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx;
310 error = bus_dmamem_alloc(dma->dma_tag, size, 1, size, dma->segs,
311 sizeof(dma->segs) / sizeof(dma->segs[0]),
312 &dma->nsegs, BUS_DMA_NOWAIT);
314 printf("%s: bus_dmamem_alloc(%ju) failed: %d\n", __func__,
315 (uintmax_t)size, error);
319 error = bus_dmamem_map(dma->dma_tag, dma->segs, dma->nsegs, size,
320 (caddr_t *)&dma->dma_vaddr,
321 BUS_DMA_NOWAIT | BUS_DMA_COHERENT);
323 printf("%s: bus_dmamem_map failed: %d\n", __func__, error);
327 error = bus_dmamap_create(dma->dma_tag, size, 1, size, 0,
328 BUS_DMA_NOWAIT, &dma->dma_map);
330 printf("%s: bus_dmamap_create failed: %d\n", __func__, error);
334 error = bus_dmamap_load(dma->dma_tag, dma->dma_map, dma->dma_vaddr,
335 size, NULL, BUS_DMA_NOWAIT);
337 printf("%s: bus_dmamap_load failed: %d\n", __func__, error);
341 dma->dma_paddr = (bus_addr_t)dma->segs[0].ds_addr;
342 *dma_addr = dma->dma_paddr;
343 return dma->dma_vaddr;
346 bus_dmamap_destroy(dma->dma_tag, dma->dma_map);
348 bus_dmamem_unmap(dma->dma_tag, dma->dma_vaddr, size);
350 bus_dmamem_free(dma->dma_tag, dma->segs, dma->nsegs);
353 dma->dma_vaddr = NULL;
359 void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr)
361 dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx;
363 if (dma->dma_map != NULL) {
364 bus_dmamap_sync(dma->dma_tag, dma->dma_map, 0, size,
365 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
366 bus_dmamap_unload(dma->dma_tag, dma->dma_map);
367 bus_dmamap_destroy(dma->dma_tag, dma->dma_map);
368 bus_dmamem_unmap(dma->dma_tag, dma->dma_vaddr, size);
369 bus_dmamem_free(dma->dma_tag, dma->segs, dma->nsegs);
372 dma->dma_vaddr = NULL;
377 void *__DWC_ALLOC(void *mem_ctx, uint32_t size)
379 return malloc(size, M_DEVBUF, M_WAITOK | M_ZERO);
382 void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size)
384 return malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO);
387 void __DWC_FREE(void *mem_ctx, void *addr)
389 free(addr, M_DEVBUF);
396 void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length)
398 get_random_bytes(buffer, length);
401 int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out)
403 struct crypto_blkcipher *tfm;
404 struct blkcipher_desc desc;
405 struct scatterlist sgd;
406 struct scatterlist sgs;
408 tfm = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC);
410 printk("failed to load transform for aes CBC\n");
414 crypto_blkcipher_setkey(tfm, key, keylen);
415 crypto_blkcipher_set_iv(tfm, iv, 16);
417 sg_init_one(&sgd, out, messagelen);
418 sg_init_one(&sgs, message, messagelen);
423 if (crypto_blkcipher_encrypt(&desc, &sgd, &sgs, messagelen)) {
424 crypto_free_blkcipher(tfm);
425 DWC_ERROR("AES CBC encryption failed");
429 crypto_free_blkcipher(tfm);
433 int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out)
435 struct crypto_hash *tfm;
436 struct hash_desc desc;
437 struct scatterlist sg;
439 tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
441 DWC_ERROR("Failed to load transform for sha256: %ld", PTR_ERR(tfm));
447 sg_init_one(&sg, message, len);
448 crypto_hash_digest(&desc, &sg, len, out);
449 crypto_free_hash(tfm);
454 int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen,
455 uint8_t *key, uint32_t keylen, uint8_t *out)
457 struct crypto_hash *tfm;
458 struct hash_desc desc;
459 struct scatterlist sg;
461 tfm = crypto_alloc_hash("hmac(sha256)", 0, CRYPTO_ALG_ASYNC);
463 DWC_ERROR("Failed to load transform for hmac(sha256): %ld", PTR_ERR(tfm));
469 sg_init_one(&sg, message, messagelen);
470 crypto_hash_setkey(tfm, key, keylen);
471 crypto_hash_digest(&desc, &sg, messagelen, out);
472 crypto_free_hash(tfm);
477 #endif /* DWC_CRYPTOLIB */
480 /* Byte Ordering Conversions */
482 uint32_t DWC_CPU_TO_LE32(uint32_t *p)
484 #ifdef __LITTLE_ENDIAN
487 uint8_t *u_p = (uint8_t *)p;
489 return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
493 uint32_t DWC_CPU_TO_BE32(uint32_t *p)
498 uint8_t *u_p = (uint8_t *)p;
500 return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
504 uint32_t DWC_LE32_TO_CPU(uint32_t *p)
506 #ifdef __LITTLE_ENDIAN
509 uint8_t *u_p = (uint8_t *)p;
511 return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
515 uint32_t DWC_BE32_TO_CPU(uint32_t *p)
520 uint8_t *u_p = (uint8_t *)p;
522 return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
526 uint16_t DWC_CPU_TO_LE16(uint16_t *p)
528 #ifdef __LITTLE_ENDIAN
531 uint8_t *u_p = (uint8_t *)p;
532 return (u_p[1] | (u_p[0] << 8));
536 uint16_t DWC_CPU_TO_BE16(uint16_t *p)
541 uint8_t *u_p = (uint8_t *)p;
542 return (u_p[1] | (u_p[0] << 8));
546 uint16_t DWC_LE16_TO_CPU(uint16_t *p)
548 #ifdef __LITTLE_ENDIAN
551 uint8_t *u_p = (uint8_t *)p;
552 return (u_p[1] | (u_p[0] << 8));
556 uint16_t DWC_BE16_TO_CPU(uint16_t *p)
561 uint8_t *u_p = (uint8_t *)p;
562 return (u_p[1] | (u_p[0] << 8));
569 uint32_t DWC_READ_REG32(void *io_ctx, uint32_t volatile *reg)
571 dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
572 bus_size_t ior = (bus_size_t)reg;
574 return bus_space_read_4(io->iot, io->ioh, ior);
578 uint64_t DWC_READ_REG64(void *io_ctx, uint64_t volatile *reg)
580 dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
581 bus_size_t ior = (bus_size_t)reg;
583 return bus_space_read_8(io->iot, io->ioh, ior);
587 void DWC_WRITE_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t value)
589 dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
590 bus_size_t ior = (bus_size_t)reg;
592 bus_space_write_4(io->iot, io->ioh, ior, value);
596 void DWC_WRITE_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t value)
598 dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
599 bus_size_t ior = (bus_size_t)reg;
601 bus_space_write_8(io->iot, io->ioh, ior, value);
605 void DWC_MODIFY_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t clear_mask,
608 dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
609 bus_size_t ior = (bus_size_t)reg;
611 bus_space_write_4(io->iot, io->ioh, ior,
612 (bus_space_read_4(io->iot, io->ioh, ior) &
613 ~clear_mask) | set_mask);
617 void DWC_MODIFY_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t clear_mask,
620 dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
621 bus_size_t ior = (bus_size_t)reg;
623 bus_space_write_8(io->iot, io->ioh, ior,
624 (bus_space_read_8(io->iot, io->ioh, ior) &
625 ~clear_mask) | set_mask);
632 dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void)
634 struct simplelock *sl = DWC_ALLOC(sizeof(*sl));
637 DWC_ERROR("Cannot allocate memory for spinlock");
641 simple_lock_init(sl);
642 return (dwc_spinlock_t *)sl;
645 void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock)
647 struct simplelock *sl = (struct simplelock *)lock;
652 void DWC_SPINLOCK(dwc_spinlock_t *lock)
654 simple_lock((struct simplelock *)lock);
657 void DWC_SPINUNLOCK(dwc_spinlock_t *lock)
659 simple_unlock((struct simplelock *)lock);
662 void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags)
664 simple_lock((struct simplelock *)lock);
668 void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags)
671 simple_unlock((struct simplelock *)lock);
674 dwc_mutex_t *DWC_MUTEX_ALLOC(void)
676 dwc_mutex_t *mutex = DWC_ALLOC(sizeof(struct lock));
679 DWC_ERROR("Cannot allocate memory for mutex");
683 lockinit((struct lock *)mutex, 0, "dw3mtx", 0, 0);
687 #if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES))
689 void DWC_MUTEX_FREE(dwc_mutex_t *mutex)
695 void DWC_MUTEX_LOCK(dwc_mutex_t *mutex)
697 lockmgr((struct lock *)mutex, LK_EXCLUSIVE, NULL);
700 int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex)
704 status = lockmgr((struct lock *)mutex, LK_EXCLUSIVE | LK_NOWAIT, NULL);
708 void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex)
710 lockmgr((struct lock *)mutex, LK_RELEASE, NULL);
716 void DWC_UDELAY(uint32_t usecs)
721 void DWC_MDELAY(uint32_t msecs)
728 void DWC_MSLEEP(uint32_t msecs)
732 tv.tv_sec = msecs / 1000;
733 tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000;
734 tsleep(&tv, 0, "dw3slp", tvtohz(&tv));
737 uint32_t DWC_TIME(void)
741 microuptime(&tv); // or getmicrouptime? (less precise, but faster)
742 return tv.tv_sec * 1000 + tv.tv_usec / 1000;
751 dwc_spinlock_t *lock;
752 dwc_timer_callback_t cb;
756 dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data)
758 dwc_timer_t *t = DWC_ALLOC(sizeof(*t));
761 DWC_ERROR("Cannot allocate memory for timer");
767 t->name = DWC_STRDUP(name);
769 DWC_ERROR("Cannot allocate memory for timer->name");
773 t->lock = DWC_SPINLOCK_ALLOC();
775 DWC_ERROR("Cannot allocate memory for timer->lock");
792 void DWC_TIMER_FREE(dwc_timer_t *timer)
794 callout_stop(&timer->t);
795 DWC_SPINLOCK_FREE(timer->lock);
796 DWC_FREE(timer->name);
800 void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time)
804 tv.tv_sec = time / 1000;
805 tv.tv_usec = (time - tv.tv_sec * 1000) * 1000;
806 callout_reset(&timer->t, tvtohz(&tv), timer->cb, timer->data);
809 void DWC_TIMER_CANCEL(dwc_timer_t *timer)
811 callout_stop(&timer->t);
818 struct simplelock lock;
822 dwc_waitq_t *DWC_WAITQ_ALLOC(void)
824 dwc_waitq_t *wq = DWC_ALLOC(sizeof(*wq));
827 DWC_ERROR("Cannot allocate memory for waitqueue");
831 simple_lock_init(&wq->lock);
837 void DWC_WAITQ_FREE(dwc_waitq_t *wq)
842 int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data)
847 simple_lock(&wq->lock);
850 /* Skip the sleep if already aborted or triggered */
851 if (!wq->abort && !cond(data)) {
853 result = ltsleep(wq, PCATCH, "dw3wat", 0, &wq->lock); // infinite timeout
857 if (result == 0) { // awoken
860 result = -DWC_E_ABORT;
866 simple_unlock(&wq->lock);
870 simple_unlock(&wq->lock);
872 if (result == ERESTART) { // signaled - restart
873 result = -DWC_E_RESTART;
874 } else { // signaled - must be EINTR
875 result = -DWC_E_ABORT;
882 int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond,
883 void *data, int32_t msecs)
885 struct timeval tv, tv1, tv2;
889 tv.tv_sec = msecs / 1000;
890 tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000;
892 simple_lock(&wq->lock);
895 /* Skip the sleep if already aborted or triggered */
896 if (!wq->abort && !cond(data)) {
898 getmicrouptime(&tv1);
899 result = ltsleep(wq, PCATCH, "dw3wto", tvtohz(&tv), &wq->lock);
900 getmicrouptime(&tv2);
904 if (result == 0) { // awoken
908 simple_unlock(&wq->lock);
909 result = -DWC_E_ABORT;
912 simple_unlock(&wq->lock);
914 tv2.tv_usec -= tv1.tv_usec;
915 if (tv2.tv_usec < 0) {
916 tv2.tv_usec += 1000000;
920 tv2.tv_sec -= tv1.tv_sec;
921 result = tv2.tv_sec * 1000 + tv2.tv_usec / 1000;
922 result = msecs - result;
929 simple_unlock(&wq->lock);
931 if (result == ERESTART) { // signaled - restart
932 result = -DWC_E_RESTART;
934 } else if (result == EINTR) { // signaled - interrupt
935 result = -DWC_E_ABORT;
937 } else { // timed out
938 result = -DWC_E_TIMEOUT;
945 void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq)
950 void DWC_WAITQ_ABORT(dwc_waitq_t *wq)
954 simple_lock(&wq->lock);
959 simple_unlock(&wq->lock);
970 dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data)
973 dwc_thread_t *thread = DWC_ALLOC(sizeof(*thread));
980 retval = kthread_create1((void (*)(void *))func, data, &thread->proc,
990 int DWC_THREAD_STOP(dwc_thread_t *thread)
995 retval = tsleep(&thread->abort, 0, "dw3stp", 60 * hz);
998 /* DWC_THREAD_EXIT() will free the thread struct */
1002 /* NOTE: We leak the thread struct if thread doesn't die */
1004 if (retval == EWOULDBLOCK) {
1005 return -DWC_E_TIMEOUT;
1008 return -DWC_E_UNKNOWN;
1011 dwc_bool_t DWC_THREAD_SHOULD_STOP(dwc_thread_t *thread)
1013 return thread->abort;
1016 void DWC_THREAD_EXIT(dwc_thread_t *thread)
1018 wakeup(&thread->abort);
1024 - Runs in interrupt context (cannot sleep)
1025 - Each tasklet runs on a single CPU
1026 - Different tasklets can be running simultaneously on different CPUs
1027 [ On NetBSD there is no corresponding mechanism, drivers don't have bottom-
1028 halves. So we just call the callback directly from DWC_TASK_SCHEDULE() ]
1030 struct dwc_tasklet {
1031 dwc_tasklet_callback_t cb;
1035 static void tasklet_callback(void *data)
1037 dwc_tasklet_t *task = (dwc_tasklet_t *)data;
1039 task->cb(task->data);
1042 dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data)
1044 dwc_tasklet_t *task = DWC_ALLOC(sizeof(*task));
1050 DWC_ERROR("Cannot allocate memory for tasklet");
1056 void DWC_TASK_FREE(dwc_tasklet_t *task)
1061 void DWC_TASK_SCHEDULE(dwc_tasklet_t *task)
1063 tasklet_callback(task);
1068 - Runs in process context (can sleep)
1070 typedef struct work_container {
1071 dwc_work_callback_t cb;
1080 struct workqueue *taskq;
1081 dwc_spinlock_t *lock;
1084 struct work_container *container;
1087 static void do_work(struct work *task, void *data)
1089 dwc_workq_t *wq = (dwc_workq_t *)data;
1090 work_container_t *container = wq->container;
1091 dwc_irqflags_t flags;
1093 if (container->hz) {
1094 tsleep(container, 0, "dw3wrk", container->hz);
1097 container->cb(container->data);
1098 DWC_DEBUG("Work done: %s, container=%p", container->name, container);
1100 DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
1101 if (container->name)
1102 DWC_FREE(container->name);
1103 DWC_FREE(container);
1105 DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
1106 DWC_WAITQ_TRIGGER(wq->waitq);
1109 static int work_done(void *data)
1111 dwc_workq_t *workq = (dwc_workq_t *)data;
1113 return workq->pending == 0;
1116 int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout)
1118 return DWC_WAITQ_WAIT_TIMEOUT(workq->waitq, work_done, workq, timeout);
1121 dwc_workq_t *DWC_WORKQ_ALLOC(char *name)
1124 dwc_workq_t *wq = DWC_ALLOC(sizeof(*wq));
1127 DWC_ERROR("Cannot allocate memory for workqueue");
1131 result = workqueue_create(&wq->taskq, name, do_work, wq, 0 /*PWAIT*/,
1134 DWC_ERROR("Cannot create workqueue");
1140 wq->lock = DWC_SPINLOCK_ALLOC();
1142 DWC_ERROR("Cannot allocate memory for spinlock");
1146 wq->waitq = DWC_WAITQ_ALLOC();
1148 DWC_ERROR("Cannot allocate memory for waitqueue");
1155 DWC_SPINLOCK_FREE(wq->lock);
1157 workqueue_destroy(wq->taskq);
1164 void DWC_WORKQ_FREE(dwc_workq_t *wq)
1167 dwc_irqflags_t flags;
1169 DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
1171 if (wq->pending != 0) {
1172 struct work_container *container = wq->container;
1174 DWC_ERROR("Destroying work queue with pending work");
1176 if (container && container->name) {
1177 DWC_ERROR("Work %s still pending", container->name);
1181 DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
1183 DWC_WAITQ_FREE(wq->waitq);
1184 DWC_SPINLOCK_FREE(wq->lock);
1185 workqueue_destroy(wq->taskq);
1189 void DWC_WORKQ_SCHEDULE(dwc_workq_t *wq, dwc_work_callback_t cb, void *data,
1192 dwc_irqflags_t flags;
1193 work_container_t *container;
1194 static char name[128];
1197 va_start(args, format);
1198 DWC_VSNPRINTF(name, 128, format, args);
1201 DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
1203 DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
1204 DWC_WAITQ_TRIGGER(wq->waitq);
1206 container = DWC_ALLOC_ATOMIC(sizeof(*container));
1208 DWC_ERROR("Cannot allocate memory for container");
1212 container->name = DWC_STRDUP(name);
1213 if (!container->name) {
1214 DWC_ERROR("Cannot allocate memory for container->name");
1215 DWC_FREE(container);
1220 container->data = data;
1223 wq->container = container;
1225 DWC_DEBUG("Queueing work: %s, container=%p", container->name, container);
1226 workqueue_enqueue(wq->taskq, &container->task);
1229 void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *wq, dwc_work_callback_t cb,
1230 void *data, uint32_t time, char *format, ...)
1232 dwc_irqflags_t flags;
1233 work_container_t *container;
1234 static char name[128];
1238 va_start(args, format);
1239 DWC_VSNPRINTF(name, 128, format, args);
1242 DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
1244 DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
1245 DWC_WAITQ_TRIGGER(wq->waitq);
1247 container = DWC_ALLOC_ATOMIC(sizeof(*container));
1249 DWC_ERROR("Cannot allocate memory for container");
1253 container->name = DWC_STRDUP(name);
1254 if (!container->name) {
1255 DWC_ERROR("Cannot allocate memory for container->name");
1256 DWC_FREE(container);
1261 container->data = data;
1263 tv.tv_sec = time / 1000;
1264 tv.tv_usec = (time - tv.tv_sec * 1000) * 1000;
1265 container->hz = tvtohz(&tv);
1266 wq->container = container;
1268 DWC_DEBUG("Queueing work: %s, container=%p", container->name, container);
1269 workqueue_enqueue(wq->taskq, &container->task);
1272 int DWC_WORKQ_PENDING(dwc_workq_t *wq)