32  * There are 3 types of interaction: One member is alone, in this case only
54  * individual member. This is only the case if data needs to be dejittered
87  * If a member joins a conference:
89  * - If a member joins, its rx_buff is set to silence and change read pointer
109  * If tones are generated by hardware, this conference member is removed for
162 	struct dsp_conf_member	*member;  in dsp_cmx_debug()  local
179 		list_for_each_entry(member, &conf->mlist, list) {  in dsp_cmx_debug()
181 			       "  - member = %s (slot_tx %d, bank_tx %d, "  in dsp_cmx_debug()
184 			       member->dsp->name, member->dsp->pcm_slot_tx,  in dsp_cmx_debug()
185 			       member->dsp->pcm_bank_tx, member->dsp->pcm_slot_rx,  in dsp_cmx_debug()
186 			       member->dsp->pcm_bank_rx, member->dsp->hfc_conf,  in dsp_cmx_debug()
187 			       member->dsp->tx_data, member->dsp->rx_is_off,  in dsp_cmx_debug()
188 			       (member->dsp == dsp) ? " *this*" : "");  in dsp_cmx_debug()
217  * add member to conference
222 	struct dsp_conf_member *member;  in dsp_cmx_add_conf_member()  local
228 	if (dsp->member) {  in dsp_cmx_add_conf_member()
229 		printk(KERN_WARNING "%s: dsp is already member in a conf.\n",  in dsp_cmx_add_conf_member()
240 	member = kzalloc(sizeof(struct dsp_conf_member), GFP_ATOMIC);  in dsp_cmx_add_conf_member()
241 	if (!member) {  in dsp_cmx_add_conf_member()
245 	member->dsp = dsp;  in dsp_cmx_add_conf_member()
252 	list_add_tail(&member->list, &conf->mlist);  in dsp_cmx_add_conf_member()
255 	dsp->member = member;  in dsp_cmx_add_conf_member()
262  * del member from conference
267 	struct dsp_conf_member *member;  in dsp_cmx_del_conf_member()  local
288 	list_for_each_entry(member, &dsp->conf->mlist, list) {  in dsp_cmx_del_conf_member()
289 		if (member->dsp == dsp) {  in dsp_cmx_del_conf_member()
290 			list_del(&member->list);  in dsp_cmx_del_conf_member()
292 			dsp->member = NULL;  in dsp_cmx_del_conf_member()
293 			kfree(member);  in dsp_cmx_del_conf_member()
381  * be member of that conference.
386 	struct dsp_conf_member	*member, *nextm;  in dsp_cmx_hardware()  local
513 	member = list_entry(conf->mlist.next, struct dsp_conf_member, list);  in dsp_cmx_hardware()
514 	same_hfc = member->dsp->features.hfc_id;  in dsp_cmx_hardware()
515 	same_pcm = member->dsp->features.pcm_id;  in dsp_cmx_hardware()
517 	list_for_each_entry(member, &conf->mlist, list) {  in dsp_cmx_hardware()
518 		/* check if member uses mixing */  in dsp_cmx_hardware()
519 		if (member->dsp->tx_mix) {  in dsp_cmx_hardware()
524 				       member->dsp->name);  in dsp_cmx_hardware()
526 			list_for_each_entry(member, &conf->mlist, list) {  in dsp_cmx_hardware()
527 				dsp = member->dsp;  in dsp_cmx_hardware()
568 		/* check if member has echo turned on */  in dsp_cmx_hardware()
569 		if (member->dsp->echo.hardware || member->dsp->echo.software) {  in dsp_cmx_hardware()
574 				       member->dsp->name);  in dsp_cmx_hardware()
577 		/* check if member has tx_mix turned on */  in dsp_cmx_hardware()
578 		if (member->dsp->tx_mix) {  in dsp_cmx_hardware()
583 				       __func__, member->dsp->name);  in dsp_cmx_hardware()
586 		/* check if member changes volume at an not suppoted level */  in dsp_cmx_hardware()
587 		if (member->dsp->tx_volume) {  in dsp_cmx_hardware()
592 				       __func__, member->dsp->name);  in dsp_cmx_hardware()
595 		if (member->dsp->rx_volume) {  in dsp_cmx_hardware()
600 				       __func__, member->dsp->name);  in dsp_cmx_hardware()
604 		if (member->dsp->tx_data) {  in dsp_cmx_hardware()
608 				       __func__, member->dsp->name);  in dsp_cmx_hardware()
612 		if (member->dsp->pipeline.inuse) {  in dsp_cmx_hardware()
617 				       member->dsp->name);  in dsp_cmx_hardware()
621 		if (member->dsp->bf_enable) {  in dsp_cmx_hardware()
625 				       __func__, member->dsp->name);  in dsp_cmx_hardware()
628 		/* check if member is on a card with PCM support */  in dsp_cmx_hardware()
629 		if (member->dsp->features.pcm_id < 0) {  in dsp_cmx_hardware()
634 				       __func__, member->dsp->name);  in dsp_cmx_hardware()
638 		if (member->dsp->features.pcm_id != same_pcm) {  in dsp_cmx_hardware()
644 				       __func__, member->dsp->name);  in dsp_cmx_hardware()
648 		if (same_hfc != member->dsp->features.hfc_id)  in dsp_cmx_hardware()
651 		if (current_conf < 0 && member->dsp->hfc_conf >= 0)  in dsp_cmx_hardware()
652 			current_conf = member->dsp->hfc_conf;  in dsp_cmx_hardware()
653 		/* if any member is not in a conference */  in dsp_cmx_hardware()
654 		if (member->dsp->hfc_conf < 0)  in dsp_cmx_hardware()
660 	/* if no member, this is an error */  in dsp_cmx_hardware()
664 	/* one member */  in dsp_cmx_hardware()
672 		member = list_entry(conf->mlist.next, struct dsp_conf_member,  in dsp_cmx_hardware()
674 		dsp = member->dsp;  in dsp_cmx_hardware()
686 		member = list_entry(conf->mlist.next, struct dsp_conf_member,  in dsp_cmx_hardware()
688 		nextm = list_entry(member->list.next, struct dsp_conf_member,  in dsp_cmx_hardware()
691 		if (member->dsp->hfc_conf >= 0) {  in dsp_cmx_hardware()
696 				       __func__, member->dsp->name,  in dsp_cmx_hardware()
697 				       member->dsp->hfc_conf);  in dsp_cmx_hardware()
698 			dsp_cmx_hw_message(member->dsp,  in dsp_cmx_hardware()
700 			member->dsp->hfc_conf = -1;  in dsp_cmx_hardware()
714 		if (member->dsp->features.pcm_banks > 1 &&  in dsp_cmx_hardware()
716 		    member->dsp->features.hfc_id !=  in dsp_cmx_hardware()
719 			if (member->dsp->pcm_slot_tx >= 0 &&  in dsp_cmx_hardware()
720 			    member->dsp->pcm_slot_rx >= 0 &&  in dsp_cmx_hardware()
724 			    member->dsp->pcm_slot_rx &&  in dsp_cmx_hardware()
726 			    member->dsp->pcm_slot_tx &&  in dsp_cmx_hardware()
728 			    member->dsp->pcm_slot_tx &&  in dsp_cmx_hardware()
729 			    member->dsp->pcm_bank_tx !=  in dsp_cmx_hardware()
730 			    member->dsp->pcm_bank_rx &&  in dsp_cmx_hardware()
740 					       member->dsp->name,  in dsp_cmx_hardware()
742 					       member->dsp->pcm_slot_tx,  in dsp_cmx_hardware()
743 					       member->dsp->pcm_bank_tx,  in dsp_cmx_hardware()
744 					       member->dsp->pcm_bank_rx);  in dsp_cmx_hardware()
752 				if (dsp != member->dsp &&  in dsp_cmx_hardware()
754 				    member->dsp->features.pcm_id ==  in dsp_cmx_hardware()
767 			ii = member->dsp->features.pcm_slots;  in dsp_cmx_hardware()
778 					       member->dsp->name,  in dsp_cmx_hardware()
784 			member->dsp->pcm_slot_tx = i;  in dsp_cmx_hardware()
785 			member->dsp->pcm_slot_rx = i;  in dsp_cmx_hardware()
788 			member->dsp->pcm_bank_rx = 0;  in dsp_cmx_hardware()
789 			member->dsp->pcm_bank_tx = 1;  in dsp_cmx_hardware()
798 				       member->dsp->name,  in dsp_cmx_hardware()
800 				       member->dsp->pcm_slot_tx);  in dsp_cmx_hardware()
801 			dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN,  in dsp_cmx_hardware()
802 					   member->dsp->pcm_slot_tx, member->dsp->pcm_bank_tx,  in dsp_cmx_hardware()
803 					   member->dsp->pcm_slot_rx, member->dsp->pcm_bank_rx);  in dsp_cmx_hardware()
813 			if (member->dsp->pcm_slot_tx >= 0 &&  in dsp_cmx_hardware()
814 			    member->dsp->pcm_slot_rx >= 0 &&  in dsp_cmx_hardware()
818 			    member->dsp->pcm_slot_rx &&  in dsp_cmx_hardware()
820 			    member->dsp->pcm_slot_tx &&  in dsp_cmx_hardware()
821 			    member->dsp->pcm_slot_tx !=  in dsp_cmx_hardware()
822 			    member->dsp->pcm_slot_rx &&  in dsp_cmx_hardware()
823 			    member->dsp->pcm_bank_tx == 0 &&  in dsp_cmx_hardware()
824 			    member->dsp->pcm_bank_rx == 0 &&  in dsp_cmx_hardware()
833 					       member->dsp->name,  in dsp_cmx_hardware()
835 					       member->dsp->pcm_slot_tx,  in dsp_cmx_hardware()
836 					       member->dsp->pcm_slot_rx);  in dsp_cmx_hardware()
844 				if (dsp != member->dsp &&  in dsp_cmx_hardware()
846 				    member->dsp->features.pcm_id ==  in dsp_cmx_hardware()
859 			ii = member->dsp->features.pcm_slots;  in dsp_cmx_hardware()
870 					       member->dsp->name,  in dsp_cmx_hardware()
887 					       member->dsp->name,  in dsp_cmx_hardware()
893 			member->dsp->pcm_slot_tx = i1;  in dsp_cmx_hardware()
894 			member->dsp->pcm_slot_rx = i2;  in dsp_cmx_hardware()
897 			member->dsp->pcm_bank_rx = 0;  in dsp_cmx_hardware()
898 			member->dsp->pcm_bank_tx = 0;  in dsp_cmx_hardware()
907 				       member->dsp->name,  in dsp_cmx_hardware()
909 				       member->dsp->pcm_slot_tx,  in dsp_cmx_hardware()
910 				       member->dsp->pcm_slot_rx);  in dsp_cmx_hardware()
911 			dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN,  in dsp_cmx_hardware()
912 					   member->dsp->pcm_slot_tx, member->dsp->pcm_bank_tx,  in dsp_cmx_hardware()
913 					   member->dsp->pcm_slot_rx, member->dsp->pcm_bank_rx);  in dsp_cmx_hardware()
953 		list_for_each_entry(member, &conf->mlist, list) {  in dsp_cmx_hardware()
956 			if (!member->dsp->features.hfc_conf)  in dsp_cmx_hardware()
959 			if (member->dsp->hdlc)  in dsp_cmx_hardware()
962 			if (member->dsp->hfc_conf == current_conf)  in dsp_cmx_hardware()
968 				 * not checking current member, because  in dsp_cmx_hardware()
972 					dsp != member->dsp &&  in dsp_cmx_hardware()
974 					member->dsp->features.pcm_id ==  in dsp_cmx_hardware()
988 			ii = member->dsp->features.pcm_slots;  in dsp_cmx_hardware()
1007 				       member->dsp->name, current_conf, i);  in dsp_cmx_hardware()
1009 			member->dsp->pcm_slot_tx = i;  in dsp_cmx_hardware()
1010 			member->dsp->pcm_slot_rx = i;  in dsp_cmx_hardware()
1011 			member->dsp->pcm_bank_tx = 2; /* loop */  in dsp_cmx_hardware()
1012 			member->dsp->pcm_bank_rx = 2;  in dsp_cmx_hardware()
1013 			member->dsp->hfc_conf = current_conf;  in dsp_cmx_hardware()
1014 			dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN,  in dsp_cmx_hardware()
1016 			dsp_cmx_hw_message(member->dsp,  in dsp_cmx_hardware()
1025 	 * no member is in a conference yet, so we find a free one  in dsp_cmx_hardware()
1068 	struct dsp_conf_member	*member;  in dsp_cmx_conf()  local
1121 		member = list_entry(conf->mlist.next, struct dsp_conf_member,  in dsp_cmx_conf()
1123 		if (dsp->hdlc && !member->dsp->hdlc) {  in dsp_cmx_conf()
1129 		if (!dsp->hdlc && member->dsp->hdlc) {  in dsp_cmx_conf()
1136 	/* add conference member */  in dsp_cmx_conf()
1312 	struct dsp *member, *other;  local
1367 	member = dsp;
1418 	/* PROCESS DATA (one member / no conf) */
1462 		if (other == member)
1473 			 * -> copy other member's rx-data,
1488 			 * -> mix other member's rx-data with echo,
1631 	struct dsp_conf_member *member;  local
1705 			member = list_entry(conf->mlist.next,
1707 			if (member->dsp->hdlc)
1711 			list_for_each_entry(member, &conf->mlist, list) {
1712 				dsp = member->dsp;
1718 				/* add member's data */
1725 			/* process each member */
1726 			list_for_each_entry(member, &conf->mlist, list) {
1728 				dsp_cmx_send_member(member->dsp, length,
1919 	struct dsp_conf_member *member;  local
1948 	list_for_each_entry(member, &dsp->conf->mlist, list) {
1949 		if (dsp->echo.software || member->dsp != dsp) {
1955 				skb_queue_tail(&member->dsp->sendq, nskb);
1956 				schedule_work(&member->dsp->workq);