128 hdsp_slot_first(uint32_t slots)  in hdsp_slot_first()  argument
130 	return (slots & (~(slots - 1)));	/* Extract first bit set. */  in hdsp_slot_first()
134 hdsp_slot_first_row(uint32_t slots)  in hdsp_slot_first_row()  argument
139 	ends = slots & (~(slots >> 1));  in hdsp_slot_first_row()
140 	/* First row of contiguous slots ends in the first row end. */  in hdsp_slot_first_row()
141 	return (slots & (ends ^ (ends - 1)));  in hdsp_slot_first_row()
145 hdsp_slot_first_n(uint32_t slots, unsigned int n)  in hdsp_slot_first_n()  argument
147 	/* Clear all but the first n slots. */  in hdsp_slot_first_n()
149 		if ((slots & slot) && n > 0)  in hdsp_slot_first_n()
152 			slots &= ~slot;  in hdsp_slot_first_n()
154 	return (slots);  in hdsp_slot_first_n()
158 hdsp_slot_count(uint32_t slots)  in hdsp_slot_count()  argument
160 	return (bitcount32(slots));  in hdsp_slot_count()
164 hdsp_slot_offset(uint32_t slots)  in hdsp_slot_offset()  argument
166 	return (hdsp_slot_count(hdsp_slot_first(slots) - 1));  in hdsp_slot_offset()
170 hdsp_slot_channel_offset(uint32_t subset, uint32_t slots)  in hdsp_slot_channel_offset()  argument
174 	/* Make sure we have a subset of slots. */  in hdsp_slot_channel_offset()
175 	subset &= slots;  in hdsp_slot_channel_offset()
176 	/* Include all slots preceding the first one of the subset. */  in hdsp_slot_channel_offset()
177 	preceding = slots & (hdsp_slot_first(subset) - 1);  in hdsp_slot_channel_offset()
268 	uint32_t slot, slots;  in hdspchan_setgain()  local
281 		slots = hdsp_port_slot_map(port, 48000);  in hdspchan_setgain()
282 		slot = hdsp_slot_first(slots);  in hdspchan_setgain()
290 			slots &= ~slot;  in hdspchan_setgain()
291 			slot = hdsp_slot_first(slots);  in hdspchan_setgain()
293 			/* Subsequent slots all get the right channel volume. */  in hdspchan_setgain()
373 	uint32_t slot, slots;  in hdspchan_enable()  local
387 	/* Iterate through all slots of the channel's physical ports. */  in hdspchan_enable()
388 	slots = hdsp_port_slot_map(ch->ports, sc->speed);  in hdspchan_enable()
389 	slot = hdsp_slot_first(slots);  in hdspchan_enable()
395 		slots &= ~slot;  in hdspchan_enable()
396 		slot = hdsp_slot_first(slots);  in hdspchan_enable()
473 buffer_mux_port(uint32_t *dma, uint32_t *pcm, uint32_t subset, uint32_t slots,  in buffer_mux_port()  argument
484 	chan_pos = hdsp_slot_channel_offset(subset, slots);  in buffer_mux_port()
518 buffer_demux_port(uint32_t *dma, uint32_t *pcm, uint32_t subset, uint32_t slots,  in buffer_demux_port()  argument
529 	chan_pos = hdsp_slot_channel_offset(subset, slots);  in buffer_demux_port()
555 	uint32_t row, slots;  in buffer_copy()  local
605 	/* Iterate through rows of contiguous slots. */  in buffer_copy()
606 	slots = hdsp_port_slot_map(ch->ports, sc->speed);  in buffer_copy()
607 	slots = hdsp_slot_first_n(slots, channels);  in buffer_copy()
608 	row = hdsp_slot_first_row(slots);  in buffer_copy()
612 			buffer_mux_port(sc->pbuf, ch->data, row, slots, pos,  in buffer_copy()
614 			buffer_mux_port(sc->pbuf, ch->data, row, slots, 0,  in buffer_copy()
617 			buffer_demux_port(sc->rbuf, ch->data, row, slots, pos,  in buffer_copy()
619 			buffer_demux_port(sc->rbuf, ch->data, row, slots, 0,  in buffer_copy()
623 		slots &= ~row;  in buffer_copy()
624 		row = hdsp_slot_first_row(slots);  in buffer_copy()
636 	uint32_t slot, slots;  in clean()  local
646 	/* Iterate through all of the channel's slots. */  in clean()
647 	slots = hdsp_port_slot_map(ch->ports, sc->speed);  in clean()
648 	slot = hdsp_slot_first(slots);  in clean()
654 		slots &= ~slot;  in clean()
655 		slot = hdsp_slot_first(slots);  in clean()