69 		 * if yes, then check if bd memory has been allocated, then  in ep_bd_list_free()
79 			dev_dbg(bdc->dev, "bd dma pool not allocated\n");  in ep_bd_list_free()
94 	/* Free the bd table array */  in ep_bd_list_free()
99  * chain the tables, by insteting a chain bd at the end of prev_table, pointing
135 	/* if there is only 1 table in bd list then loop chain to self */  in ep_bd_list_alloc()
186 	/* Free the bd_table_array, bd_table struct, bd's */  in ep_bd_list_alloc()
192 /* returns how many bd's are need for this transfer */
198 	/* 1 bd needed for 0 byte transfer */  in bd_needed_req()
202 	/* remaining bytes after tranfering all max BD size BD's */  in bd_needed_req()
207 	/* How many maximum BUFF size BD's ? */  in bd_needed_req()
214 /* returns the bd index(bdi) corresponding to bd dma address */
229 	 * array and compare addresses of first and last address of bd of each  in bd_add_to_bdi()
247 		dev_err(bdc->dev, "%s FATAL err, bd not found\n", __func__);  in bd_add_to_bdi()
270 /* Find the bdi last bd in the transfer */
285  * How many transfer bd's are available on this ep bdl, chain bds are not
297 	/* if empty then we have all bd's available - number of chain bd's */  in bd_available_ep()
303 	 * of avaialble bd's  in bd_available_ep()
306 		/* available bd's are from eqp..max_bds + 0..dqp - chain_bds */  in bd_available_ep()
315 		/* available bd's are from eqp..dqp - number of chain bd's */  in bd_available_ep()
320 			/* If there any chain bd in between */  in bd_available_ep()
331 	 * we need to keep one extra bd to check if ring is full or empty so  in bd_available_ep()
340 /* Notify the hardware after queueing the bd to bdl */
356 /* returns the bd corresponding to bdi */
374 	/* if it's chain bd, then move to next */  in ep_bdlist_eqp_adv()
383 /* Setup the first bd for ep0 transfer */
416 			"Unknown ep0 state for queueing bd ep0_state:%s\n",  in setup_first_bd_ep0()
424 /* Setup the bd dma descriptor for a given request */
432 	struct bdc_bd *bd;  in setup_bd_list_xfr()  local
441 	bd = bdi_to_bd(ep, bd_list->eqp_bdi);  in setup_bd_list_xfr()
446 	dev_vdbg(bdc->dev, "%s ep:%s num_bds:%d tfs:%d r_len:%d bd:%p\n",  in setup_bd_list_xfr()
447 				__func__, ep->name, num_bds, tfs, req_len, bd);  in setup_bd_list_xfr()
451 		/* First bd */  in setup_bd_list_xfr()
455 			/* format of first bd for ep0 is different than other */  in setup_bd_list_xfr()
469 			/* this should be the last bd */  in setup_bd_list_xfr()
476 		bd = bdi_to_bd(ep, ep->bd_list.eqp_bdi);  in setup_bd_list_xfr()
477 		if (unlikely(!bd)) {  in setup_bd_list_xfr()
478 			dev_err(bdc->dev, "Err bd pointing to wrong addr\n");  in setup_bd_list_xfr()
481 		/* write bd */  in setup_bd_list_xfr()
482 		bd->offset[0] = cpu_to_le32(lower_32_bits(buf_add));  in setup_bd_list_xfr()
483 		bd->offset[1] = cpu_to_le32(upper_32_bits(buf_add));  in setup_bd_list_xfr()
484 		bd->offset[2] = cpu_to_le32(dword2);  in setup_bd_list_xfr()
485 		bd->offset[3] = cpu_to_le32(dword3);  in setup_bd_list_xfr()
490 		dev_vdbg(bdc->dev, "buf_add:%08llx req_len:%d bd:%p eqp:%d\n",  in setup_bd_list_xfr()
491 				(unsigned long long)buf_add, req_len, bd,  in setup_bd_list_xfr()
493 		bd = bdi_to_bd(ep, ep->bd_list.eqp_bdi);  in setup_bd_list_xfr()
494 		bd->offset[3] = cpu_to_le32(BD_SBF);  in setup_bd_list_xfr()
496 	/* clear the STOP BD fetch bit from the first bd of this xfr */  in setup_bd_list_xfr()
497 	bd = bdi_to_bd(ep, bd_xfr->start_bdi);  in setup_bd_list_xfr()
498 	bd->offset[3] &= cpu_to_le32(~BD_SBF);  in setup_bd_list_xfr()
523 	/* how many bd's are avaialble on ep */  in bdc_queue_xfr()
613 		dev_err(bdc->dev, "ep bd list allocation failed:%d\n", ret);  in bdc_ep_enable()
637 /* Queue a status stage BD */
671 			/* Queue a status stage BD */  in ep0_queue()
781 	/* we have the dma addr of next bd that will be fetched by hardware */  in ep_dequeue()
787 	 * curr_hw_dqpi points to actual dqp of HW and HW owns bd's from  in ep_dequeue()
791 	/* Check if start_bdi and end_bdi are in range of HW owned BD's */  in ep_dequeue()
835 	 * Due to HW limitation we need to bypadd chain bd's and issue ep_bla,  in ep_dequeue()
837 	 * then issue ep_bla instead of marking as chain bd  in ep_dequeue()
841 		 * Mark the start bd as Chain bd, and point the chain  in ep_dequeue()
842 		 * bd to next_bd_dma  in ep_dequeue()
975 		dev_warn(bdc->dev, "xfr srr with no BD's queued\n");  in handle_xsr_succ_status()
985 	 * sr_status is short and this transfer has more than 1 bd then it needs  in handle_xsr_succ_status()
990 		 * This is multi bd xfr, lets see which bd  in handle_xsr_succ_status()
1000 			dev_warn(bdc->dev, "bd doesn't exist?\n");  in handle_xsr_succ_status()
1384 /* Queue data stage to handle 6 byte SET_SEL request */
1393 	if (unlikely(wLength != 6)) {  in ep0_set_sel()
1399 	bdc->ep0_req.usb_req.length = 6;  in ep0_set_sel()
1408  * Queue a 0 byte bd only if wLength is more than the length and length is
1409  * a multiple of MaxPacket then queue 0 byte BD
1598 		/* Queue a status stage BD */  in bdc_xsf_ep0_status_start()
1697 				/* queue 0 length bd */  in bdc_sr_xsf()