414 static int sq_allocate_buffers(struct sound_queue *sq, int num, int size)  in sq_allocate_buffers()  argument
418 	if (sq->buffers)  in sq_allocate_buffers()
420 	sq->numBufs = num;  in sq_allocate_buffers()
421 	sq->bufSize = size;  in sq_allocate_buffers()
422 	sq->buffers = kmalloc (num * sizeof(char *), GFP_KERNEL);  in sq_allocate_buffers()
423 	if (!sq->buffers)  in sq_allocate_buffers()
426 		sq->buffers[i] = dmasound.mach.dma_alloc(size, GFP_KERNEL);  in sq_allocate_buffers()
427 		if (!sq->buffers[i]) {  in sq_allocate_buffers()
429 				dmasound.mach.dma_free(sq->buffers[i], size);  in sq_allocate_buffers()
430 			kfree(sq->buffers);  in sq_allocate_buffers()
431 			sq->buffers = NULL;  in sq_allocate_buffers()
438 static void sq_release_buffers(struct sound_queue *sq)  in sq_release_buffers()  argument
442 	if (sq->buffers) {  in sq_release_buffers()
443 		for (i = 0; i < sq->numBufs; i++)  in sq_release_buffers()
444 			dmasound.mach.dma_free(sq->buffers[i], sq->bufSize);  in sq_release_buffers()
445 		kfree(sq->buffers);  in sq_release_buffers()
446 		sq->buffers = NULL;  in sq_release_buffers()
451 static int sq_setup(struct sound_queue *sq)  in sq_setup()  argument
456 	if (sq->locked) { /* are we already set? - and not changeable */  in sq_setup()
462 	sq->locked = 1 ; /* don't think we have a race prob. here _check_ */  in sq_setup()
482 	if (sq->user_frags <= 0) {  in sq_setup()
483 		sq->max_count = sq->numBufs ;  in sq_setup()
484 		sq->max_active = sq->numBufs ;  in sq_setup()
485 		sq->block_size = sq->bufSize;  in sq_setup()
487 		sq->user_frags = sq->numBufs ;  in sq_setup()
488 		sq->user_frag_size = sq->bufSize ;  in sq_setup()
489 		sq->user_frag_size *=  in sq_setup()
491 		sq->user_frag_size /=  in sq_setup()
495 		sq->block_size = sq->user_frag_size ;  in sq_setup()
496 		sq->block_size *=  in sq_setup()
498 		sq->block_size /=  in sq_setup()
501 		sq->block_size *= dmasound.hard.speed ;  in sq_setup()
502 		sq->block_size /= dmasound.soft.speed ;  in sq_setup()
506 		sq->block_size +=  (hard_frame - 1) ;  in sq_setup()
507 		sq->block_size &= ~(hard_frame - 1) ; /* make sure we are aligned */  in sq_setup()
509 		if ( sq->block_size <= 0 || sq->block_size > sq->bufSize) {  in sq_setup()
511 printk("dmasound_core: invalid frag size (user set %d)\n", sq->user_frag_size) ;  in sq_setup()
513 			sq->block_size = sq->bufSize ;  in sq_setup()
515 		if ( sq->user_frags <= sq->numBufs ) {  in sq_setup()
516 			sq->max_count = sq->user_frags ;  in sq_setup()
518 			sq->max_active = (sq->max_active <= sq->max_count) ?  in sq_setup()
519 				sq->max_active : sq->max_count ;  in sq_setup()
522 printk("dmasound_core: invalid frag count (user set %d)\n", sq->user_frags) ;  in sq_setup()
524 			sq->max_count =  in sq_setup()
525 			sq->max_active = sq->numBufs ;  in sq_setup()
528 	sq->front = sq->count = sq->rear_size = 0;  in sq_setup()
529 	sq->syncing = 0;  in sq_setup()
530 	sq->active = 0;  in sq_setup()
532 	if (sq == &write_sq) {  in sq_setup()
533 	    sq->rear = -1;  in sq_setup()
691 static inline void sq_init_waitqueue(struct sound_queue *sq)  in sq_init_waitqueue()  argument
693 	init_waitqueue_head(&sq->action_queue);  in sq_init_waitqueue()
694 	init_waitqueue_head(&sq->open_queue);  in sq_init_waitqueue()
695 	init_waitqueue_head(&sq->sync_queue);  in sq_init_waitqueue()
696 	sq->busy = 0;  in sq_init_waitqueue()
700 static inline void sq_wake_up(struct sound_queue *sq, struct file *file,
704 		sq->busy = 0; /* CHECK: IS THIS OK??? */
705 		WAKE_UP(sq->open_queue);
710 static int sq_open2(struct sound_queue *sq, struct file *file, fmode_t mode,  in sq_open2()  argument
716 		if (sq->busy) {  in sq_open2()
722 			if (wait_event_interruptible(sq->open_queue, !sq->busy))  in sq_open2()
732 		sq->busy = 1; /* Let's play spot-the-race-condition */  in sq_open2()
739 		if (( rc = sq_allocate_buffers(sq, numbufs, bufsize))) {  in sq_open2()
741 			sq_wake_up(sq, file, mode);  in sq_open2()
743 			sq->busy = 0 ;  in sq_open2()
748 		sq->non_blocking = file->f_flags & O_NONBLOCK;  in sq_open2()
956 static int set_queue_frags(struct sound_queue *sq, int bufs, int size)  in set_queue_frags()  argument
958 	if (sq->locked) {  in set_queue_frags()
968 	if (size > sq->bufSize)  in set_queue_frags()
973 	if (bufs > sq->numBufs) /* the user is allowed say "don't care" with 0x7fff */  in set_queue_frags()
974 		bufs = sq->numBufs ;  in set_queue_frags()
981 	sq->user_frags =  in set_queue_frags()
982 	sq->max_active = bufs ;  in set_queue_frags()
983 	sq->user_frag_size = size ;  in set_queue_frags()