1056 static int allocate_pipes(struct echoaudio *chip, struct audiopipe *pipe,  in allocate_pipes()  argument
1083 	pipe->index = pipe_index;  in allocate_pipes()
1084 	pipe->interleave = interleave;  in allocate_pipes()
1085 	pipe->state = PIPE_STATE_STOPPED;  in allocate_pipes()
1090 	pipe->dma_counter = &chip->comm_page->position[pipe_index];  in allocate_pipes()
1091 	*pipe->dma_counter = 0;  in allocate_pipes()
1097 static int free_pipes(struct echoaudio *chip, struct audiopipe *pipe)  in free_pipes()  argument
1102 	if (snd_BUG_ON(!is_pipe_allocated(chip, pipe->index)))  in free_pipes()
1104 	if (snd_BUG_ON(pipe->state != PIPE_STATE_STOPPED))  in free_pipes()
1107 	for (channel_mask = i = 0; i < pipe->interleave; i++)  in free_pipes()
1108 		channel_mask |= 1 << (pipe->index + i);  in free_pipes()
1121 static int sglist_init(struct echoaudio *chip, struct audiopipe *pipe)  in sglist_init()  argument
1123 	pipe->sglist_head = 0;  in sglist_init()
1124 	memset(pipe->sgpage.area, 0, PAGE_SIZE);  in sglist_init()
1125 	chip->comm_page->sglist_addr[pipe->index].addr =  in sglist_init()
1126 		cpu_to_le32(pipe->sgpage.addr);  in sglist_init()
1132 static int sglist_add_mapping(struct echoaudio *chip, struct audiopipe *pipe,  in sglist_add_mapping()  argument
1135 	int head = pipe->sglist_head;  in sglist_add_mapping()
1136 	struct sg_entry *list = (struct sg_entry *)pipe->sgpage.area;  in sglist_add_mapping()
1141 		pipe->sglist_head++;  in sglist_add_mapping()
1151 static inline int sglist_add_irq(struct echoaudio *chip, struct audiopipe *pipe)  in sglist_add_irq()  argument
1153 	return sglist_add_mapping(chip, pipe, 0, 0);  in sglist_add_irq()
1158 static inline int sglist_wrap(struct echoaudio *chip, struct audiopipe *pipe)  in sglist_wrap()  argument
1160 	return sglist_add_mapping(chip, pipe, pipe->sgpage.addr, 0);  in sglist_wrap()