Lines Matching +full:ring +full:- +full:disable +full:- +full:pullup
1 // SPDX-License-Identifier: GPL-2.0
3 * Cadence USBSS DRD Driver - gadget side.
5 * Copyright (C) 2018-2019 Cadence Design Systems.
6 * Copyright (C) 2017-2018 NXP
32 * Controller for OUT endpoints has shared on-chip buffers for all incoming
37 * Additionally the packets directed to one endpoint can block entire on-chip
59 #include <linux/dma-mapping.h>
65 #include "gadget-export.h"
81 * cdns3_clear_register_bit - clear bit in given register.
92 * cdns3_set_register_bit - set bit in given register.
103 * cdns3_ep_addr_to_index - Macro converts endpoint address to
118 dma_index = readl(&priv_dev->regs->ep_traddr) - priv_ep->trb_pool_dma; in cdns3_get_dma_pos()
124 * cdns3_next_request - returns next request from list
135 * cdns3_next_align_buf - returns next buffer from list
146 * cdns3_next_priv_request - returns next request from list
157 * select_ep - selects endpoint
163 if (priv_dev->selected_ep == ep) in cdns3_select_ep()
166 priv_dev->selected_ep = ep; in cdns3_select_ep()
167 writel(ep, &priv_dev->regs->ep_sel); in cdns3_select_ep()
171 * cdns3_get_tdl - gets current tdl for selected endpoint.
179 if (priv_dev->dev_ver < DEV_VER_V3) in cdns3_get_tdl()
180 return EP_CMD_TDL_GET(readl(&priv_dev->regs->ep_cmd)); in cdns3_get_tdl()
182 return readl(&priv_dev->regs->ep_tdl); in cdns3_get_tdl()
188 u32 offset = (char *)trb - (char *)priv_ep->trb_pool; in cdns3_trb_virt_to_dma()
190 return priv_ep->trb_pool_dma + offset; in cdns3_trb_virt_to_dma()
195 switch (priv_ep->type) { in cdns3_ring_size()
201 if (priv_ep->use_streams) in cdns3_ring_size()
210 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_free_trb_pool()
212 if (priv_ep->trb_pool) { in cdns3_free_trb_pool()
213 dma_free_coherent(priv_dev->sysdev, in cdns3_free_trb_pool()
215 priv_ep->trb_pool, priv_ep->trb_pool_dma); in cdns3_free_trb_pool()
216 priv_ep->trb_pool = NULL; in cdns3_free_trb_pool()
221 * cdns3_allocate_trb_pool - Allocates TRB's pool for selected endpoint
224 * Function will return 0 on success or -ENOMEM on allocation error
228 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_allocate_trb_pool()
233 if (priv_ep->trb_pool && priv_ep->alloc_ring_size < ring_size) in cdns3_allocate_trb_pool()
236 if (!priv_ep->trb_pool) { in cdns3_allocate_trb_pool()
237 priv_ep->trb_pool = dma_alloc_coherent(priv_dev->sysdev, in cdns3_allocate_trb_pool()
239 &priv_ep->trb_pool_dma, in cdns3_allocate_trb_pool()
241 if (!priv_ep->trb_pool) in cdns3_allocate_trb_pool()
242 return -ENOMEM; in cdns3_allocate_trb_pool()
244 priv_ep->alloc_ring_size = ring_size; in cdns3_allocate_trb_pool()
247 memset(priv_ep->trb_pool, 0, ring_size); in cdns3_allocate_trb_pool()
249 priv_ep->num_trbs = num_trbs; in cdns3_allocate_trb_pool()
251 if (!priv_ep->num) in cdns3_allocate_trb_pool()
255 link_trb = (priv_ep->trb_pool + (priv_ep->num_trbs - 1)); in cdns3_allocate_trb_pool()
257 if (priv_ep->use_streams) { in cdns3_allocate_trb_pool()
262 link_trb->control = 0; in cdns3_allocate_trb_pool()
264 link_trb->buffer = cpu_to_le32(TRB_BUFFER(priv_ep->trb_pool_dma)); in cdns3_allocate_trb_pool()
265 link_trb->control = cpu_to_le32(TRB_CYCLE | TRB_TYPE(TRB_LINK) | TRB_TOGGLE); in cdns3_allocate_trb_pool()
271 * cdns3_ep_stall_flush - Stalls and flushes selected endpoint
278 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_ep_stall_flush()
284 &priv_dev->regs->ep_cmd); in cdns3_ep_stall_flush()
287 readl_poll_timeout_atomic(&priv_dev->regs->ep_cmd, val, in cdns3_ep_stall_flush()
289 priv_ep->flags |= EP_STALLED; in cdns3_ep_stall_flush()
290 priv_ep->flags &= ~EP_STALL_PENDING; in cdns3_ep_stall_flush()
294 * cdns3_hw_reset_eps_config - reset endpoints configuration kept by controller.
301 writel(USB_CONF_CFGRST, &priv_dev->regs->usb_conf); in cdns3_hw_reset_eps_config()
304 priv_dev->hw_configured_flag = 0; in cdns3_hw_reset_eps_config()
305 priv_dev->onchip_used_size = 0; in cdns3_hw_reset_eps_config()
306 priv_dev->out_mem_is_allocated = 0; in cdns3_hw_reset_eps_config()
307 priv_dev->wait_for_setup = 0; in cdns3_hw_reset_eps_config()
308 priv_dev->using_streams = 0; in cdns3_hw_reset_eps_config()
311 if (priv_dev->eps[i]) in cdns3_hw_reset_eps_config()
312 priv_dev->eps[i]->flags &= ~EP_CONFIGURED; in cdns3_hw_reset_eps_config()
316 * cdns3_ep_inc_trb - increment a trb index.
329 if (*index == (trb_in_seg - 1)) { in cdns3_ep_inc_trb()
336 * cdns3_ep_inc_enq - increment endpoint's enqueue pointer
341 priv_ep->free_trbs--; in cdns3_ep_inc_enq()
342 cdns3_ep_inc_trb(&priv_ep->enqueue, &priv_ep->pcs, priv_ep->num_trbs); in cdns3_ep_inc_enq()
346 * cdns3_ep_inc_deq - increment endpoint's dequeue pointer
351 priv_ep->free_trbs++; in cdns3_ep_inc_deq()
352 cdns3_ep_inc_trb(&priv_ep->dequeue, &priv_ep->ccs, priv_ep->num_trbs); in cdns3_ep_inc_deq()
356 * cdns3_allow_enable_l1 - enable/disable permits to transition to L1.
358 * @enable: Enable/disable permit to transition to L1.
368 writel(USB_CONF_L1EN, &priv_dev->regs->usb_conf); in cdns3_allow_enable_l1()
370 writel(USB_CONF_L1DS, &priv_dev->regs->usb_conf); in cdns3_allow_enable_l1()
377 reg = readl(&priv_dev->regs->usb_sts); in cdns3_get_speed()
391 * cdns3_start_all_request - add to ring all request not started
395 * Returns return ENOMEM if transfer ring i not enough TRBs to start
403 u8 pending_empty = list_empty(&priv_ep->pending_req_list); in cdns3_start_all_request()
413 request = cdns3_next_request(&priv_ep->pending_req_list); in cdns3_start_all_request()
415 if ((priv_req->flags & REQUEST_INTERNAL) || in cdns3_start_all_request()
416 (priv_ep->flags & EP_TDLCHK_EN) || in cdns3_start_all_request()
417 priv_ep->use_streams) { in cdns3_start_all_request()
418 dev_dbg(priv_dev->dev, "Blocking external request\n"); in cdns3_start_all_request()
423 while (!list_empty(&priv_ep->deferred_req_list)) { in cdns3_start_all_request()
424 request = cdns3_next_request(&priv_ep->deferred_req_list); in cdns3_start_all_request()
426 if (!priv_ep->use_streams) { in cdns3_start_all_request()
429 priv_ep->stream_sg_idx = 0; in cdns3_start_all_request()
435 list_del(&request->list); in cdns3_start_all_request()
436 list_add_tail(&request->list, in cdns3_start_all_request()
437 &priv_ep->pending_req_list); in cdns3_start_all_request()
438 if (request->stream_id != 0 || (priv_ep->flags & EP_TDLCHK_EN)) in cdns3_start_all_request()
442 priv_ep->flags &= ~EP_RING_FULL; in cdns3_start_all_request()
449 * buffer for unblocking on-chip FIFO buffer. This flag will be cleared
453 if (!priv_ep->dir && priv_ep->type != USB_ENDPOINT_XFER_ISOC) { \
454 priv_ep->flags |= EP_QUIRK_EXTRA_BUF_DET; \
461 int length = request->actual + descmiss_req->actual; in __cdns3_descmiss_copy_data()
462 struct scatterlist *s = request->sg; in __cdns3_descmiss_copy_data()
465 if (length <= request->length) { in __cdns3_descmiss_copy_data()
466 memcpy(&((u8 *)request->buf)[request->actual], in __cdns3_descmiss_copy_data()
467 descmiss_req->buf, in __cdns3_descmiss_copy_data()
468 descmiss_req->actual); in __cdns3_descmiss_copy_data()
469 request->actual = length; in __cdns3_descmiss_copy_data()
472 request->status = -ENOMEM; in __cdns3_descmiss_copy_data()
478 memcpy(&((u8 *)p)[request->actual], in __cdns3_descmiss_copy_data()
479 descmiss_req->buf, in __cdns3_descmiss_copy_data()
480 descmiss_req->actual); in __cdns3_descmiss_copy_data()
481 request->actual = length; in __cdns3_descmiss_copy_data()
483 request->status = -ENOMEM; in __cdns3_descmiss_copy_data()
500 while (!list_empty(&priv_ep->wa2_descmiss_req_list)) { in cdns3_wa2_descmiss_copy_data()
504 cdns3_next_priv_request(&priv_ep->wa2_descmiss_req_list); in cdns3_wa2_descmiss_copy_data()
505 descmiss_req = &descmiss_priv_req->request; in cdns3_wa2_descmiss_copy_data()
508 if (descmiss_priv_req->flags & REQUEST_PENDING) in cdns3_wa2_descmiss_copy_data()
511 chunk_end = descmiss_priv_req->flags & REQUEST_INTERNAL_CH; in cdns3_wa2_descmiss_copy_data()
512 request->status = descmiss_req->status; in cdns3_wa2_descmiss_copy_data()
514 list_del_init(&descmiss_priv_req->list); in cdns3_wa2_descmiss_copy_data()
515 kfree(descmiss_req->buf); in cdns3_wa2_descmiss_copy_data()
516 cdns3_gadget_ep_free_request(&priv_ep->endpoint, descmiss_req); in cdns3_wa2_descmiss_copy_data()
517 --priv_ep->wa2_counter; in cdns3_wa2_descmiss_copy_data()
528 if (priv_ep->flags & EP_QUIRK_EXTRA_BUF_EN && in cdns3_wa2_gadget_giveback()
529 priv_req->flags & REQUEST_INTERNAL) { in cdns3_wa2_gadget_giveback()
532 req = cdns3_next_request(&priv_ep->deferred_req_list); in cdns3_wa2_gadget_giveback()
534 priv_ep->descmis_req = NULL; in cdns3_wa2_gadget_giveback()
540 usb_gadget_unmap_request_by_dev(priv_dev->sysdev, req, in cdns3_wa2_gadget_giveback()
541 priv_ep->dir); in cdns3_wa2_gadget_giveback()
544 if (!(priv_ep->flags & EP_QUIRK_END_TRANSFER) && in cdns3_wa2_gadget_giveback()
545 req->length != req->actual) { in cdns3_wa2_gadget_giveback()
547 /* re-map the gadget request buffer*/ in cdns3_wa2_gadget_giveback()
548 usb_gadget_map_request_by_dev(priv_dev->sysdev, req, in cdns3_wa2_gadget_giveback()
549 usb_endpoint_dir_in(priv_ep->endpoint.desc)); in cdns3_wa2_gadget_giveback()
553 if (req->status == -EINPROGRESS) in cdns3_wa2_gadget_giveback()
554 req->status = 0; in cdns3_wa2_gadget_giveback()
556 list_del_init(&req->list); in cdns3_wa2_gadget_giveback()
561 return &priv_req->request; in cdns3_wa2_gadget_giveback()
572 * can disable handling of DESCMISS interrupt. Driver assumes that it in cdns3_wa2_gadget_ep_queue()
573 * can disable special treatment for this endpoint. in cdns3_wa2_gadget_ep_queue()
575 if (priv_ep->flags & EP_QUIRK_EXTRA_BUF_DET) { in cdns3_wa2_gadget_ep_queue()
578 cdns3_select_ep(priv_dev, priv_ep->num | priv_ep->dir); in cdns3_wa2_gadget_ep_queue()
579 priv_ep->flags &= ~EP_QUIRK_EXTRA_BUF_DET; in cdns3_wa2_gadget_ep_queue()
580 reg = readl(&priv_dev->regs->ep_sts_en); in cdns3_wa2_gadget_ep_queue()
583 writel(reg, &priv_dev->regs->ep_sts_en); in cdns3_wa2_gadget_ep_queue()
586 if (priv_ep->flags & EP_QUIRK_EXTRA_BUF_EN) { in cdns3_wa2_gadget_ep_queue()
587 u8 pending_empty = list_empty(&priv_ep->pending_req_list); in cdns3_wa2_gadget_ep_queue()
588 u8 descmiss_empty = list_empty(&priv_ep->wa2_descmiss_req_list); in cdns3_wa2_gadget_ep_queue()
596 !(priv_req->flags & REQUEST_INTERNAL)) { in cdns3_wa2_gadget_ep_queue()
598 &priv_req->request); in cdns3_wa2_gadget_ep_queue()
602 list_add_tail(&priv_req->request.list, in cdns3_wa2_gadget_ep_queue()
603 &priv_ep->pending_req_list); in cdns3_wa2_gadget_ep_queue()
605 priv_req->request.status); in cdns3_wa2_gadget_ep_queue()
624 if (priv_req->flags & REQUEST_INTERNAL) in cdns3_wa2_gadget_ep_queue()
625 list_add_tail(&priv_req->list, in cdns3_wa2_gadget_ep_queue()
626 &priv_ep->wa2_descmiss_req_list); in cdns3_wa2_gadget_ep_queue()
636 while (!list_empty(&priv_ep->wa2_descmiss_req_list)) { in cdns3_wa2_remove_old_request()
639 priv_req = cdns3_next_priv_request(&priv_ep->wa2_descmiss_req_list); in cdns3_wa2_remove_old_request()
640 chain = !!(priv_req->flags & REQUEST_INTERNAL_CH); in cdns3_wa2_remove_old_request()
644 kfree(priv_req->request.buf); in cdns3_wa2_remove_old_request()
645 list_del_init(&priv_req->list); in cdns3_wa2_remove_old_request()
646 cdns3_gadget_ep_free_request(&priv_ep->endpoint, in cdns3_wa2_remove_old_request()
647 &priv_req->request); in cdns3_wa2_remove_old_request()
648 --priv_ep->wa2_counter; in cdns3_wa2_remove_old_request()
656 * cdns3_wa2_descmissing_packet - handles descriptor missing event.
666 u8 pending_empty = list_empty(&priv_ep->pending_req_list); in cdns3_wa2_descmissing_packet()
674 if (priv_ep->flags & EP_QUIRK_EXTRA_BUF_DET) { in cdns3_wa2_descmissing_packet()
675 priv_ep->flags &= ~EP_QUIRK_EXTRA_BUF_DET; in cdns3_wa2_descmissing_packet()
676 priv_ep->flags |= EP_QUIRK_EXTRA_BUF_EN; in cdns3_wa2_descmissing_packet()
681 if (priv_ep->wa2_counter >= CDNS3_WA2_NUM_BUFFERS) { in cdns3_wa2_descmissing_packet()
686 request = cdns3_gadget_ep_alloc_request(&priv_ep->endpoint, in cdns3_wa2_descmissing_packet()
692 priv_req->flags |= REQUEST_INTERNAL; in cdns3_wa2_descmissing_packet()
700 if (priv_ep->descmis_req) in cdns3_wa2_descmissing_packet()
701 priv_ep->descmis_req->flags |= REQUEST_INTERNAL_CH; in cdns3_wa2_descmissing_packet()
703 priv_req->request.buf = kzalloc(CDNS3_DESCMIS_BUF_SIZE, in cdns3_wa2_descmissing_packet()
705 priv_ep->wa2_counter++; in cdns3_wa2_descmissing_packet()
707 if (!priv_req->request.buf) { in cdns3_wa2_descmissing_packet()
708 cdns3_gadget_ep_free_request(&priv_ep->endpoint, request); in cdns3_wa2_descmissing_packet()
712 priv_req->request.length = CDNS3_DESCMIS_BUF_SIZE; in cdns3_wa2_descmissing_packet()
713 priv_ep->descmis_req = priv_req; in cdns3_wa2_descmissing_packet()
715 __cdns3_gadget_ep_queue(&priv_ep->endpoint, in cdns3_wa2_descmissing_packet()
716 &priv_ep->descmis_req->request, in cdns3_wa2_descmissing_packet()
722 dev_err(priv_ep->cdns3_dev->dev, in cdns3_wa2_descmissing_packet()
728 u16 tdl = EP_CMD_TDL_GET(readl(&priv_dev->regs->ep_cmd)); in cdns3_wa2_reset_tdl()
731 u16 reset_val = EP_CMD_TDL_MAX + 1 - tdl; in cdns3_wa2_reset_tdl()
734 &priv_dev->regs->ep_cmd); in cdns3_wa2_reset_tdl()
742 /* select EP0-out */ in cdns3_wa2_check_outq_status()
745 ep_sts_reg = readl(&priv_dev->regs->ep_sts); in cdns3_wa2_check_outq_status()
749 struct cdns3_endpoint *outq_ep = priv_dev->eps[outq_ep_num]; in cdns3_wa2_check_outq_status()
751 if ((outq_ep->flags & EP_ENABLED) && !(outq_ep->use_streams) && in cdns3_wa2_check_outq_status()
752 outq_ep->type != USB_ENDPOINT_XFER_ISOC && outq_ep_num) { in cdns3_wa2_check_outq_status()
753 u8 pending_empty = list_empty(&outq_ep->pending_req_list); in cdns3_wa2_check_outq_status()
755 if ((outq_ep->flags & EP_QUIRK_EXTRA_BUF_DET) || in cdns3_wa2_check_outq_status()
756 (outq_ep->flags & EP_QUIRK_EXTRA_BUF_EN) || in cdns3_wa2_check_outq_status()
762 cdns3_select_ep(priv_dev, outq_ep->num | in cdns3_wa2_check_outq_status()
763 outq_ep->dir); in cdns3_wa2_check_outq_status()
764 ep_sts_en_reg = readl(&priv_dev->regs->ep_sts_en); in cdns3_wa2_check_outq_status()
765 ep_cmd_reg = readl(&priv_dev->regs->ep_cmd); in cdns3_wa2_check_outq_status()
767 outq_ep->flags |= EP_TDLCHK_EN; in cdns3_wa2_check_outq_status()
768 cdns3_set_register_bit(&priv_dev->regs->ep_cfg, in cdns3_wa2_check_outq_status()
774 &priv_dev->regs->ep_sts_en); in cdns3_wa2_check_outq_status()
778 * Memory barrier - Reset tdl before ringing the in cdns3_wa2_check_outq_status()
788 * ring doorbell to generate DESCMIS irq in cdns3_wa2_check_outq_status()
791 &priv_dev->regs->ep_cmd); in cdns3_wa2_check_outq_status()
799 * cdns3_gadget_giveback - call struct usb_request's ->complete callback
805 * function will unmap @req and call its ->complete() callback to notify upper
812 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_gadget_giveback()
813 struct usb_request *request = &priv_req->request; in cdns3_gadget_giveback()
815 list_del_init(&request->list); in cdns3_gadget_giveback()
817 if (request->status == -EINPROGRESS) in cdns3_gadget_giveback()
818 request->status = status; in cdns3_gadget_giveback()
820 usb_gadget_unmap_request_by_dev(priv_dev->sysdev, request, in cdns3_gadget_giveback()
821 priv_ep->dir); in cdns3_gadget_giveback()
823 if ((priv_req->flags & REQUEST_UNALIGNED) && in cdns3_gadget_giveback()
824 priv_ep->dir == USB_DIR_OUT && !request->status) in cdns3_gadget_giveback()
825 memcpy(request->buf, priv_req->aligned_buf->buf, in cdns3_gadget_giveback()
826 request->length); in cdns3_gadget_giveback()
828 priv_req->flags &= ~(REQUEST_PENDING | REQUEST_UNALIGNED); in cdns3_gadget_giveback()
830 priv_req->finished_trb = 0; in cdns3_gadget_giveback()
833 if (priv_dev->dev_ver < DEV_VER_V2) { in cdns3_gadget_giveback()
840 if (request->complete) { in cdns3_gadget_giveback()
841 spin_unlock(&priv_dev->lock); in cdns3_gadget_giveback()
842 usb_gadget_giveback_request(&priv_ep->endpoint, in cdns3_gadget_giveback()
844 spin_lock(&priv_dev->lock); in cdns3_gadget_giveback()
847 if (request->buf == priv_dev->zlp_buf) in cdns3_gadget_giveback()
848 cdns3_gadget_ep_free_request(&priv_ep->endpoint, request); in cdns3_gadget_giveback()
854 if (priv_ep->wa1_set) { in cdns3_wa1_restore_cycle_bit()
857 priv_ep->wa1_set = 0; in cdns3_wa1_restore_cycle_bit()
858 priv_ep->wa1_trb_index = 0xFFFF; in cdns3_wa1_restore_cycle_bit()
859 if (priv_ep->wa1_cycle_bit) { in cdns3_wa1_restore_cycle_bit()
860 priv_ep->wa1_trb->control = in cdns3_wa1_restore_cycle_bit()
861 priv_ep->wa1_trb->control | cpu_to_le32(0x1); in cdns3_wa1_restore_cycle_bit()
863 priv_ep->wa1_trb->control = in cdns3_wa1_restore_cycle_bit()
864 priv_ep->wa1_trb->control & cpu_to_le32(~0x1); in cdns3_wa1_restore_cycle_bit()
876 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_free_aligned_request_buf()
878 list_for_each_entry_safe(buf, tmp, &priv_dev->aligned_buf_list, list) { in cdns3_free_aligned_request_buf()
879 if (!buf->in_use) { in cdns3_free_aligned_request_buf()
880 list_del(&buf->list); in cdns3_free_aligned_request_buf()
883 * Re-enable interrupts to free DMA capable memory. in cdns3_free_aligned_request_buf()
887 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_free_aligned_request_buf()
888 dma_free_coherent(priv_dev->sysdev, buf->size, in cdns3_free_aligned_request_buf()
889 buf->buf, buf->dma); in cdns3_free_aligned_request_buf()
891 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_free_aligned_request_buf()
895 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_free_aligned_request_buf()
900 struct cdns3_endpoint *priv_ep = priv_req->priv_ep; in cdns3_prepare_aligned_request_buf()
901 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_prepare_aligned_request_buf()
905 if (!((uintptr_t)priv_req->request.buf & 0x7)) in cdns3_prepare_aligned_request_buf()
908 buf = priv_req->aligned_buf; in cdns3_prepare_aligned_request_buf()
910 if (!buf || priv_req->request.length > buf->size) { in cdns3_prepare_aligned_request_buf()
913 return -ENOMEM; in cdns3_prepare_aligned_request_buf()
915 buf->size = priv_req->request.length; in cdns3_prepare_aligned_request_buf()
917 buf->buf = dma_alloc_coherent(priv_dev->sysdev, in cdns3_prepare_aligned_request_buf()
918 buf->size, in cdns3_prepare_aligned_request_buf()
919 &buf->dma, in cdns3_prepare_aligned_request_buf()
921 if (!buf->buf) { in cdns3_prepare_aligned_request_buf()
923 return -ENOMEM; in cdns3_prepare_aligned_request_buf()
926 if (priv_req->aligned_buf) { in cdns3_prepare_aligned_request_buf()
928 priv_req->aligned_buf->in_use = 0; in cdns3_prepare_aligned_request_buf()
930 &priv_dev->aligned_buf_wq); in cdns3_prepare_aligned_request_buf()
933 buf->in_use = 1; in cdns3_prepare_aligned_request_buf()
934 priv_req->aligned_buf = buf; in cdns3_prepare_aligned_request_buf()
936 list_add_tail(&buf->list, in cdns3_prepare_aligned_request_buf()
937 &priv_dev->aligned_buf_list); in cdns3_prepare_aligned_request_buf()
940 if (priv_ep->dir == USB_DIR_IN) { in cdns3_prepare_aligned_request_buf()
941 memcpy(buf->buf, priv_req->request.buf, in cdns3_prepare_aligned_request_buf()
942 priv_req->request.length); in cdns3_prepare_aligned_request_buf()
945 priv_req->flags |= REQUEST_UNALIGNED; in cdns3_prepare_aligned_request_buf()
954 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_wa1_update_guard()
956 if (!priv_ep->wa1_set) { in cdns3_wa1_update_guard()
959 doorbell = !!(readl(&priv_dev->regs->ep_cmd) & EP_CMD_DRDY); in cdns3_wa1_update_guard()
962 priv_ep->wa1_cycle_bit = priv_ep->pcs ? TRB_CYCLE : 0; in cdns3_wa1_update_guard()
963 priv_ep->wa1_set = 1; in cdns3_wa1_update_guard()
964 priv_ep->wa1_trb = trb; in cdns3_wa1_update_guard()
965 priv_ep->wa1_trb_index = priv_ep->enqueue; in cdns3_wa1_update_guard()
979 doorbell = !!(readl(&priv_dev->regs->ep_cmd) & EP_CMD_DRDY); in cdns3_wa1_tray_restore_cycle_bit()
982 if (!doorbell || dma_index != priv_ep->wa1_trb_index) in cdns3_wa1_tray_restore_cycle_bit()
989 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_ep_run_stream_transfer()
997 unsigned int sg_idx = priv_ep->stream_sg_idx; in cdns3_ep_run_stream_transfer()
1000 address = priv_ep->endpoint.desc->bEndpointAddress; in cdns3_ep_run_stream_transfer()
1002 priv_ep->flags |= EP_PENDING_REQUEST; in cdns3_ep_run_stream_transfer()
1005 if (priv_req->flags & REQUEST_UNALIGNED) in cdns3_ep_run_stream_transfer()
1006 trb_dma = priv_req->aligned_buf->dma; in cdns3_ep_run_stream_transfer()
1008 trb_dma = request->dma; in cdns3_ep_run_stream_transfer()
1011 trb = priv_ep->trb_pool + priv_ep->enqueue; in cdns3_ep_run_stream_transfer()
1012 priv_req->start_trb = priv_ep->enqueue; in cdns3_ep_run_stream_transfer()
1013 priv_req->end_trb = priv_req->start_trb; in cdns3_ep_run_stream_transfer()
1014 priv_req->trb = trb; in cdns3_ep_run_stream_transfer()
1016 cdns3_select_ep(priv_ep->cdns3_dev, address); in cdns3_ep_run_stream_transfer()
1019 TRB_STREAM_ID(priv_req->request.stream_id) | TRB_ISP; in cdns3_ep_run_stream_transfer()
1021 if (!request->num_sgs) { in cdns3_ep_run_stream_transfer()
1022 trb->buffer = cpu_to_le32(TRB_BUFFER(trb_dma)); in cdns3_ep_run_stream_transfer()
1023 length = request->length; in cdns3_ep_run_stream_transfer()
1025 trb->buffer = cpu_to_le32(TRB_BUFFER(request->sg[sg_idx].dma_address)); in cdns3_ep_run_stream_transfer()
1026 length = request->sg[sg_idx].length; in cdns3_ep_run_stream_transfer()
1029 tdl = DIV_ROUND_UP(length, priv_ep->endpoint.maxpacket); in cdns3_ep_run_stream_transfer()
1031 trb->length = cpu_to_le32(TRB_BURST_LEN(16) | TRB_LEN(length)); in cdns3_ep_run_stream_transfer()
1038 if (priv_dev->dev_ver >= DEV_VER_V2) { in cdns3_ep_run_stream_transfer()
1039 if (priv_dev->gadget.speed == USB_SPEED_SUPER) in cdns3_ep_run_stream_transfer()
1040 trb->length |= cpu_to_le32(TRB_TDL_SS_SIZE(tdl)); in cdns3_ep_run_stream_transfer()
1042 priv_req->flags |= REQUEST_PENDING; in cdns3_ep_run_stream_transfer()
1044 trb->control = cpu_to_le32(control); in cdns3_ep_run_stream_transfer()
1046 trace_cdns3_prepare_trb(priv_ep, priv_req->trb); in cdns3_ep_run_stream_transfer()
1049 * Memory barrier - Cycle Bit must be set before trb->length and in cdns3_ep_run_stream_transfer()
1050 * trb->buffer fields. in cdns3_ep_run_stream_transfer()
1055 writel(EP_TRADDR_TRADDR(priv_ep->trb_pool_dma), in cdns3_ep_run_stream_transfer()
1056 &priv_dev->regs->ep_traddr); in cdns3_ep_run_stream_transfer()
1058 if (!(priv_ep->flags & EP_STALLED)) { in cdns3_ep_run_stream_transfer()
1061 writel(EP_STS_TRBERR | EP_STS_DESCMIS, &priv_dev->regs->ep_sts); in cdns3_ep_run_stream_transfer()
1063 priv_ep->prime_flag = false; in cdns3_ep_run_stream_transfer()
1070 if (priv_dev->dev_ver < DEV_VER_V2) in cdns3_ep_run_stream_transfer()
1072 &priv_dev->regs->ep_cmd); in cdns3_ep_run_stream_transfer()
1073 else if (priv_dev->dev_ver > DEV_VER_V2) in cdns3_ep_run_stream_transfer()
1074 writel(tdl, &priv_dev->regs->ep_tdl); in cdns3_ep_run_stream_transfer()
1076 priv_ep->last_stream_id = priv_req->request.stream_id; in cdns3_ep_run_stream_transfer()
1077 writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd); in cdns3_ep_run_stream_transfer()
1078 writel(EP_CMD_ERDY_SID(priv_req->request.stream_id) | in cdns3_ep_run_stream_transfer()
1079 EP_CMD_ERDY, &priv_dev->regs->ep_cmd); in cdns3_ep_run_stream_transfer()
1081 trace_cdns3_doorbell_epx(priv_ep->name, in cdns3_ep_run_stream_transfer()
1082 readl(&priv_dev->regs->ep_traddr)); in cdns3_ep_run_stream_transfer()
1093 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_rearm_drdy_if_needed()
1095 if (priv_dev->dev_ver < DEV_VER_V3) in cdns3_rearm_drdy_if_needed()
1098 if (readl(&priv_dev->regs->ep_sts) & EP_STS_TRBERR) { in cdns3_rearm_drdy_if_needed()
1099 writel(EP_STS_TRBERR, &priv_dev->regs->ep_sts); in cdns3_rearm_drdy_if_needed()
1100 writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd); in cdns3_rearm_drdy_if_needed()
1105 * cdns3_ep_run_transfer - start transfer on no-default endpoint hardware
1114 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_ep_run_transfer()
1129 bool sg_supported = !!(request->num_mapped_sgs); in cdns3_ep_run_transfer()
1131 num_trb_req = sg_supported ? request->num_mapped_sgs : 1; in cdns3_ep_run_transfer()
1134 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC) in cdns3_ep_run_transfer()
1135 num_trb = priv_ep->interval * num_trb_req; in cdns3_ep_run_transfer()
1140 address = priv_ep->endpoint.desc->bEndpointAddress; in cdns3_ep_run_transfer()
1142 priv_ep->flags |= EP_PENDING_REQUEST; in cdns3_ep_run_transfer()
1145 if (priv_req->flags & REQUEST_UNALIGNED) in cdns3_ep_run_transfer()
1146 trb_dma = priv_req->aligned_buf->dma; in cdns3_ep_run_transfer()
1148 trb_dma = request->dma; in cdns3_ep_run_transfer()
1150 trb = priv_ep->trb_pool + priv_ep->enqueue; in cdns3_ep_run_transfer()
1151 priv_req->start_trb = priv_ep->enqueue; in cdns3_ep_run_transfer()
1152 priv_req->trb = trb; in cdns3_ep_run_transfer()
1154 cdns3_select_ep(priv_ep->cdns3_dev, address); in cdns3_ep_run_transfer()
1156 /* prepare ring */ in cdns3_ep_run_transfer()
1157 if ((priv_ep->enqueue + num_trb) >= (priv_ep->num_trbs - 1)) { in cdns3_ep_run_transfer()
1161 doorbell = !!(readl(&priv_dev->regs->ep_cmd) & EP_CMD_DRDY); in cdns3_ep_run_transfer()
1165 if (doorbell && dma_index == priv_ep->num_trbs - 1) { in cdns3_ep_run_transfer()
1166 priv_ep->flags |= EP_DEFERRED_DRDY; in cdns3_ep_run_transfer()
1167 return -ENOBUFS; in cdns3_ep_run_transfer()
1171 link_trb = priv_ep->trb_pool + (priv_ep->num_trbs - 1); in cdns3_ep_run_transfer()
1180 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC || in cdns3_ep_run_transfer()
1184 link_trb->control = cpu_to_le32(((priv_ep->pcs) ? TRB_CYCLE : 0) | in cdns3_ep_run_transfer()
1187 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC) { in cdns3_ep_run_transfer()
1192 while (priv_ep->enqueue) { in cdns3_ep_run_transfer()
1197 trb = priv_ep->trb_pool + priv_ep->enqueue; in cdns3_ep_run_transfer()
1198 priv_req->trb = trb; in cdns3_ep_run_transfer()
1203 if (num_trb > priv_ep->free_trbs) { in cdns3_ep_run_transfer()
1204 priv_ep->flags |= EP_RING_FULL; in cdns3_ep_run_transfer()
1205 return -ENOBUFS; in cdns3_ep_run_transfer()
1208 if (priv_dev->dev_ver <= DEV_VER_V2) in cdns3_ep_run_transfer()
1212 control = priv_ep->pcs ? 0 : TRB_CYCLE; in cdns3_ep_run_transfer()
1213 trb->length = 0; in cdns3_ep_run_transfer()
1214 if (priv_dev->dev_ver >= DEV_VER_V2) { in cdns3_ep_run_transfer()
1217 td_size = DIV_ROUND_UP(request->length, in cdns3_ep_run_transfer()
1218 priv_ep->endpoint.maxpacket); in cdns3_ep_run_transfer()
1219 if (priv_dev->gadget.speed == USB_SPEED_SUPER) in cdns3_ep_run_transfer()
1220 trb->length = cpu_to_le32(TRB_TDL_SS_SIZE(td_size)); in cdns3_ep_run_transfer()
1229 s = request->sg; in cdns3_ep_run_transfer()
1234 trb->buffer = cpu_to_le32(TRB_BUFFER(sg_dma_address(s))); in cdns3_ep_run_transfer()
1237 trb->buffer = cpu_to_le32(TRB_BUFFER(trb_dma)); in cdns3_ep_run_transfer()
1238 length = request->length; in cdns3_ep_run_transfer()
1241 if (priv_ep->flags & EP_TDLCHK_EN) in cdns3_ep_run_transfer()
1243 priv_ep->endpoint.maxpacket); in cdns3_ep_run_transfer()
1245 trb_burst = priv_ep->trb_burst_size; in cdns3_ep_run_transfer()
1252 * [UVC Header(8B) ] [data(3k - 8)] ... in cdns3_ep_run_transfer()
1269 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && priv_dev->dev_ver <= DEV_VER_V2) in cdns3_ep_run_transfer()
1270 if (ALIGN_DOWN(trb->buffer, SZ_4K) != in cdns3_ep_run_transfer()
1271 ALIGN_DOWN(trb->buffer + length, SZ_4K)) in cdns3_ep_run_transfer()
1274 trb->length |= cpu_to_le32(TRB_BURST_LEN(trb_burst) | in cdns3_ep_run_transfer()
1276 pcs = priv_ep->pcs ? TRB_CYCLE : 0; in cdns3_ep_run_transfer()
1285 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && !priv_ep->dir) { in cdns3_ep_run_transfer()
1289 if (sg_iter == (num_trb - 1) && sg_iter != 0) in cdns3_ep_run_transfer()
1294 trb->control = cpu_to_le32(control); in cdns3_ep_run_transfer()
1296 priv_req->trb->control = cpu_to_le32(control); in cdns3_ep_run_transfer()
1299 trb->control |= cpu_to_le32(TRB_ISP); in cdns3_ep_run_transfer()
1301 if ((sg_iter % num_trb_req) < num_trb_req - 1) in cdns3_ep_run_transfer()
1302 trb->control |= cpu_to_le32(TRB_CHAIN); in cdns3_ep_run_transfer()
1309 priv_req->end_trb = priv_ep->enqueue; in cdns3_ep_run_transfer()
1311 trb = priv_ep->trb_pool + priv_ep->enqueue; in cdns3_ep_run_transfer()
1312 trb->length = 0; in cdns3_ep_run_transfer()
1315 trb = priv_req->trb; in cdns3_ep_run_transfer()
1317 priv_req->flags |= REQUEST_PENDING; in cdns3_ep_run_transfer()
1318 priv_req->num_of_trb = num_trb; in cdns3_ep_run_transfer()
1321 trb->control |= cpu_to_le32(TRB_IOC | TRB_ISP); in cdns3_ep_run_transfer()
1323 if (priv_dev->dev_ver < DEV_VER_V2 && in cdns3_ep_run_transfer()
1324 (priv_ep->flags & EP_TDLCHK_EN)) { in cdns3_ep_run_transfer()
1326 u16 old_tdl = EP_CMD_TDL_GET(readl(&priv_dev->regs->ep_cmd)); in cdns3_ep_run_transfer()
1330 priv_ep->pending_tdl = total_tdl - EP_CMD_TDL_MAX; in cdns3_ep_run_transfer()
1334 tdl -= old_tdl; in cdns3_ep_run_transfer()
1336 &priv_dev->regs->ep_cmd); in cdns3_ep_run_transfer()
1341 * Memory barrier - cycle bit must be set before other filds in trb. in cdns3_ep_run_transfer()
1347 trb->control = trb->control ^ cpu_to_le32(1); in cdns3_ep_run_transfer()
1349 if (priv_dev->dev_ver <= DEV_VER_V2) in cdns3_ep_run_transfer()
1358 trb = priv_ep->trb_pool; in cdns3_ep_run_transfer()
1359 num_trb = num_trb - i; in cdns3_ep_run_transfer()
1366 trace_cdns3_prepare_trb(priv_ep, priv_req->trb); in cdns3_ep_run_transfer()
1370 * Memory barrier - Cycle Bit must be set before trb->length and in cdns3_ep_run_transfer()
1371 * trb->buffer fields. in cdns3_ep_run_transfer()
1376 * For DMULT mode we can set address to transfer ring only once after in cdns3_ep_run_transfer()
1379 if (priv_ep->flags & EP_UPDATE_EP_TRBADDR) { in cdns3_ep_run_transfer()
1385 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && !priv_ep->dir && in cdns3_ep_run_transfer()
1386 !(priv_ep->flags & EP_QUIRK_ISO_OUT_EN)) { in cdns3_ep_run_transfer()
1387 priv_ep->flags |= EP_QUIRK_ISO_OUT_EN; in cdns3_ep_run_transfer()
1388 cdns3_set_register_bit(&priv_dev->regs->ep_cfg, in cdns3_ep_run_transfer()
1392 writel(EP_TRADDR_TRADDR(priv_ep->trb_pool_dma + in cdns3_ep_run_transfer()
1393 priv_req->start_trb * TRB_SIZE), in cdns3_ep_run_transfer()
1394 &priv_dev->regs->ep_traddr); in cdns3_ep_run_transfer()
1396 priv_ep->flags &= ~EP_UPDATE_EP_TRBADDR; in cdns3_ep_run_transfer()
1399 if (!priv_ep->wa1_set && !(priv_ep->flags & EP_STALLED)) { in cdns3_ep_run_transfer()
1402 writel(EP_STS_TRBERR | EP_STS_DESCMIS, &priv_dev->regs->ep_sts); in cdns3_ep_run_transfer()
1403 writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd); in cdns3_ep_run_transfer()
1405 trace_cdns3_doorbell_epx(priv_ep->name, in cdns3_ep_run_transfer()
1406 readl(&priv_dev->regs->ep_traddr)); in cdns3_ep_run_transfer()
1420 if (priv_dev->hw_configured_flag) in cdns3_set_hw_configuration()
1423 writel(USB_CONF_CFGSET, &priv_dev->regs->usb_conf); in cdns3_set_hw_configuration()
1425 cdns3_set_register_bit(&priv_dev->regs->usb_conf, in cdns3_set_hw_configuration()
1428 priv_dev->hw_configured_flag = 1; in cdns3_set_hw_configuration()
1430 list_for_each_entry(ep, &priv_dev->gadget.ep_list, ep_list) { in cdns3_set_hw_configuration()
1431 if (ep->enabled) { in cdns3_set_hw_configuration()
1441 * cdns3_trb_handled - check whether trb has been handled by DMA
1450 * SR - start ring
1451 * ER - end ring
1452 * DQ = priv_ep->dequeue - dequeue position
1453 * EQ = priv_ep->enqueue - enqueue position
1454 * ST = priv_req->start_trb - index of first TRB in transfer ring
1455 * ET = priv_req->end_trb - index of last TRB in transfer ring
1456 * CI = current_index - index of processed TRB by DMA.
1459 * Then, we check if cycle bit for index priv_ep->dequeue
1463 * 1. priv_ep->dequeue never equals to current_index.
1464 * 2 priv_ep->enqueue never exceed priv_ep->dequeue
1465 * 3. exception: priv_ep->enqueue == priv_ep->dequeue
1466 * and priv_ep->free_trbs is zero.
1470 * Case 1 - priv_ep->dequeue < current_index
1474 * Case 2 - priv_ep->dequeue > current_index
1476 * transfer ring.
1482 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_trb_handled()
1489 doorbell = !!(readl(&priv_dev->regs->ep_cmd) & EP_CMD_DRDY); in cdns3_trb_handled()
1492 if (priv_req->start_trb < priv_req->end_trb) { in cdns3_trb_handled()
1493 if (priv_ep->dequeue > priv_req->end_trb) in cdns3_trb_handled()
1496 if (priv_ep->dequeue < priv_req->start_trb) in cdns3_trb_handled()
1500 if ((priv_req->start_trb > priv_req->end_trb) && in cdns3_trb_handled()
1501 (priv_ep->dequeue > priv_req->end_trb) && in cdns3_trb_handled()
1502 (priv_ep->dequeue < priv_req->start_trb)) in cdns3_trb_handled()
1505 if ((priv_req->start_trb == priv_req->end_trb) && in cdns3_trb_handled()
1506 (priv_ep->dequeue != priv_req->end_trb)) in cdns3_trb_handled()
1509 trb = &priv_ep->trb_pool[priv_ep->dequeue]; in cdns3_trb_handled()
1511 if ((le32_to_cpu(trb->control) & TRB_CYCLE) != priv_ep->ccs) in cdns3_trb_handled()
1514 if (doorbell == 1 && current_index == priv_ep->dequeue) in cdns3_trb_handled()
1518 if (TRBS_PER_SEGMENT == 2 && priv_ep->type != USB_ENDPOINT_XFER_ISOC) { in cdns3_trb_handled()
1523 if (priv_ep->enqueue == priv_ep->dequeue && in cdns3_trb_handled()
1524 priv_ep->free_trbs == 0) { in cdns3_trb_handled()
1526 } else if (priv_ep->dequeue < current_index) { in cdns3_trb_handled()
1527 if ((current_index == (priv_ep->num_trbs - 1)) && in cdns3_trb_handled()
1528 !priv_ep->dequeue) in cdns3_trb_handled()
1532 } else if (priv_ep->dequeue > current_index) { in cdns3_trb_handled()
1551 while (!list_empty(&priv_ep->pending_req_list)) { in cdns3_transfer_completed()
1552 request = cdns3_next_request(&priv_ep->pending_req_list); in cdns3_transfer_completed()
1555 trb = priv_ep->trb_pool + priv_ep->dequeue; in cdns3_transfer_completed()
1558 while (TRB_FIELD_TO_TYPE(le32_to_cpu(trb->control)) == TRB_LINK) { in cdns3_transfer_completed()
1561 if (priv_ep->dequeue == cdns3_get_dma_pos(priv_dev, priv_ep) && in cdns3_transfer_completed()
1562 priv_ep->type == USB_ENDPOINT_XFER_ISOC) in cdns3_transfer_completed()
1567 trb = priv_ep->trb_pool + priv_ep->dequeue; in cdns3_transfer_completed()
1570 if (!request->stream_id) { in cdns3_transfer_completed()
1571 /* Re-select endpoint. It could be changed by other CPU in cdns3_transfer_completed()
1574 cdns3_select_ep(priv_dev, priv_ep->endpoint.address); in cdns3_transfer_completed()
1577 priv_req->finished_trb++; in cdns3_transfer_completed()
1578 if (priv_req->finished_trb >= priv_req->num_of_trb) in cdns3_transfer_completed()
1581 trb = priv_ep->trb_pool + priv_ep->dequeue; in cdns3_transfer_completed()
1585 request->actual += in cdns3_transfer_completed()
1586 TRB_LEN(le32_to_cpu(trb->length)); in cdns3_transfer_completed()
1588 if (priv_req->num_of_trb > 1 && in cdns3_transfer_completed()
1589 le32_to_cpu(trb->control) & TRB_SMM && in cdns3_transfer_completed()
1590 le32_to_cpu(trb->control) & TRB_CHAIN) in cdns3_transfer_completed()
1597 /* TRBs are duplicated by priv_ep->interval time for ISO IN */ in cdns3_transfer_completed()
1598 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && priv_ep->dir) in cdns3_transfer_completed()
1599 request->actual /= priv_ep->interval; in cdns3_transfer_completed()
1608 if (priv_ep->type != USB_ENDPOINT_XFER_ISOC && in cdns3_transfer_completed()
1612 /* Re-select endpoint. It could be changed by other CPU in cdns3_transfer_completed()
1615 cdns3_select_ep(priv_dev, priv_ep->endpoint.address); in cdns3_transfer_completed()
1617 trb = priv_ep->trb_pool; in cdns3_transfer_completed()
1620 if (trb != priv_req->trb) in cdns3_transfer_completed()
1621 dev_warn(priv_dev->dev, in cdns3_transfer_completed()
1623 priv_req->trb, trb); in cdns3_transfer_completed()
1625 request->actual += TRB_LEN(le32_to_cpu(trb->length)); in cdns3_transfer_completed()
1627 if (!request->num_sgs || in cdns3_transfer_completed()
1628 (request->num_sgs == (priv_ep->stream_sg_idx + 1))) { in cdns3_transfer_completed()
1629 priv_ep->stream_sg_idx = 0; in cdns3_transfer_completed()
1632 priv_ep->stream_sg_idx++; in cdns3_transfer_completed()
1638 priv_ep->flags &= ~EP_PENDING_REQUEST; in cdns3_transfer_completed()
1641 if (!(priv_ep->flags & EP_STALLED) && in cdns3_transfer_completed()
1642 !(priv_ep->flags & EP_STALL_PENDING)) in cdns3_transfer_completed()
1648 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_rearm_transfer()
1657 writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd); in cdns3_rearm_transfer()
1661 trace_cdns3_doorbell_epx(priv_ep->name, in cdns3_rearm_transfer()
1662 readl(&priv_dev->regs->ep_traddr)); in cdns3_rearm_transfer()
1668 u16 tdl = priv_ep->pending_tdl; in cdns3_reprogram_tdl()
1669 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_reprogram_tdl()
1673 priv_ep->pending_tdl -= EP_CMD_TDL_MAX; in cdns3_reprogram_tdl()
1675 priv_ep->pending_tdl = 0; in cdns3_reprogram_tdl()
1678 writel(EP_CMD_TDL_SET(tdl) | EP_CMD_STDL, &priv_dev->regs->ep_cmd); in cdns3_reprogram_tdl()
1682 * cdns3_check_ep_interrupt_proceed - Processes interrupt related to endpoint
1689 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_check_ep_interrupt_proceed()
1695 cdns3_select_ep(priv_dev, priv_ep->endpoint.address); in cdns3_check_ep_interrupt_proceed()
1699 ep_sts_reg = readl(&priv_dev->regs->ep_sts); in cdns3_check_ep_interrupt_proceed()
1700 writel(ep_sts_reg, &priv_dev->regs->ep_sts); in cdns3_check_ep_interrupt_proceed()
1702 if ((ep_sts_reg & EP_STS_PRIME) && priv_ep->use_streams) { in cdns3_check_ep_interrupt_proceed()
1717 EP_CMD_ERDY_SID(priv_ep->last_stream_id), in cdns3_check_ep_interrupt_proceed()
1718 &priv_dev->regs->ep_cmd); in cdns3_check_ep_interrupt_proceed()
1721 priv_ep->prime_flag = true; in cdns3_check_ep_interrupt_proceed()
1723 pending_request = cdns3_next_request(&priv_ep->pending_req_list); in cdns3_check_ep_interrupt_proceed()
1724 deferred_request = cdns3_next_request(&priv_ep->deferred_req_list); in cdns3_check_ep_interrupt_proceed()
1733 if (priv_ep->flags & EP_STALL_PENDING && in cdns3_check_ep_interrupt_proceed()
1735 priv_dev->dev_ver < DEV_VER_V2)) { in cdns3_check_ep_interrupt_proceed()
1742 * OUT data packet. If host disable stream or lost some packet in cdns3_check_ep_interrupt_proceed()
1746 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && in cdns3_check_ep_interrupt_proceed()
1747 !priv_ep->wa1_set) { in cdns3_check_ep_interrupt_proceed()
1748 if (!priv_ep->dir) { in cdns3_check_ep_interrupt_proceed()
1749 u32 ep_cfg = readl(&priv_dev->regs->ep_cfg); in cdns3_check_ep_interrupt_proceed()
1752 writel(ep_cfg, &priv_dev->regs->ep_cfg); in cdns3_check_ep_interrupt_proceed()
1753 priv_ep->flags &= ~EP_QUIRK_ISO_OUT_EN; in cdns3_check_ep_interrupt_proceed()
1754 priv_ep->flags |= EP_UPDATE_EP_TRBADDR; in cdns3_check_ep_interrupt_proceed()
1757 } else if (!(priv_ep->flags & EP_STALLED) && in cdns3_check_ep_interrupt_proceed()
1758 !(priv_ep->flags & EP_STALL_PENDING)) { in cdns3_check_ep_interrupt_proceed()
1759 if (priv_ep->flags & EP_DEFERRED_DRDY) { in cdns3_check_ep_interrupt_proceed()
1760 priv_ep->flags &= ~EP_DEFERRED_DRDY; in cdns3_check_ep_interrupt_proceed()
1764 priv_ep->wa1_set); in cdns3_check_ep_interrupt_proceed()
1771 if (priv_ep->flags & EP_QUIRK_EXTRA_BUF_EN) { in cdns3_check_ep_interrupt_proceed()
1773 priv_ep->flags |= EP_QUIRK_END_TRANSFER; in cdns3_check_ep_interrupt_proceed()
1775 priv_ep->flags &= ~EP_QUIRK_END_TRANSFER; in cdns3_check_ep_interrupt_proceed()
1778 if (!priv_ep->use_streams) { in cdns3_check_ep_interrupt_proceed()
1782 } else if ((priv_ep->flags & EP_TDLCHK_EN) & in cdns3_check_ep_interrupt_proceed()
1783 priv_ep->pending_tdl) { in cdns3_check_ep_interrupt_proceed()
1787 } else if (priv_ep->dir == USB_DIR_OUT) { in cdns3_check_ep_interrupt_proceed()
1788 priv_ep->ep_sts_pending |= ep_sts_reg; in cdns3_check_ep_interrupt_proceed()
1798 if (priv_ep->dir == USB_DIR_OUT && (ep_sts_reg & EP_STS_MD_EXIT) && in cdns3_check_ep_interrupt_proceed()
1799 (priv_ep->ep_sts_pending & EP_STS_IOT) && priv_ep->use_streams) { in cdns3_check_ep_interrupt_proceed()
1800 priv_ep->ep_sts_pending = 0; in cdns3_check_ep_interrupt_proceed()
1806 * priv_ep->flags & EP_QUIRK_EXTRA_BUF_DET or in cdns3_check_ep_interrupt_proceed()
1807 * priv_ep->flags & EP_QUIRK_EXTRA_BUF_EN. in cdns3_check_ep_interrupt_proceed()
1810 if (ep_sts_reg & EP_STS_DESCMIS && priv_dev->dev_ver < DEV_VER_V2 && in cdns3_check_ep_interrupt_proceed()
1811 !(priv_ep->flags & EP_STALLED)) in cdns3_check_ep_interrupt_proceed()
1819 if (priv_dev->gadget_driver && priv_dev->gadget_driver->disconnect) in cdns3_disconnect_gadget()
1820 priv_dev->gadget_driver->disconnect(&priv_dev->gadget); in cdns3_disconnect_gadget()
1824 * cdns3_check_usb_interrupt_proceed - Processes interrupt related to device
1831 __must_hold(&priv_dev->lock) in cdns3_check_usb_interrupt_proceed()
1842 if (readl(&priv_dev->regs->drbl)) in cdns3_check_usb_interrupt_proceed()
1849 priv_dev->gadget.speed = speed; in cdns3_check_usb_interrupt_proceed()
1850 usb_gadget_set_state(&priv_dev->gadget, USB_STATE_POWERED); in cdns3_check_usb_interrupt_proceed()
1856 spin_unlock(&priv_dev->lock); in cdns3_check_usb_interrupt_proceed()
1858 spin_lock(&priv_dev->lock); in cdns3_check_usb_interrupt_proceed()
1859 priv_dev->gadget.speed = USB_SPEED_UNKNOWN; in cdns3_check_usb_interrupt_proceed()
1860 usb_gadget_set_state(&priv_dev->gadget, USB_STATE_NOTATTACHED); in cdns3_check_usb_interrupt_proceed()
1865 if (priv_dev->gadget_driver && in cdns3_check_usb_interrupt_proceed()
1866 priv_dev->gadget_driver->suspend) { in cdns3_check_usb_interrupt_proceed()
1867 spin_unlock(&priv_dev->lock); in cdns3_check_usb_interrupt_proceed()
1868 priv_dev->gadget_driver->suspend(&priv_dev->gadget); in cdns3_check_usb_interrupt_proceed()
1869 spin_lock(&priv_dev->lock); in cdns3_check_usb_interrupt_proceed()
1874 if (priv_dev->gadget_driver && in cdns3_check_usb_interrupt_proceed()
1875 priv_dev->gadget_driver->resume) { in cdns3_check_usb_interrupt_proceed()
1876 spin_unlock(&priv_dev->lock); in cdns3_check_usb_interrupt_proceed()
1877 priv_dev->gadget_driver->resume(&priv_dev->gadget); in cdns3_check_usb_interrupt_proceed()
1878 spin_lock(&priv_dev->lock); in cdns3_check_usb_interrupt_proceed()
1884 if (priv_dev->gadget_driver) { in cdns3_check_usb_interrupt_proceed()
1885 spin_unlock(&priv_dev->lock); in cdns3_check_usb_interrupt_proceed()
1886 usb_gadget_udc_reset(&priv_dev->gadget, in cdns3_check_usb_interrupt_proceed()
1887 priv_dev->gadget_driver); in cdns3_check_usb_interrupt_proceed()
1888 spin_lock(&priv_dev->lock); in cdns3_check_usb_interrupt_proceed()
1892 priv_dev->gadget.speed = speed; in cdns3_check_usb_interrupt_proceed()
1900 * cdns3_device_irq_handler- interrupt handler for device part of controller
1910 struct cdns3 *cdns = dev_get_drvdata(priv_dev->dev); in cdns3_device_irq_handler()
1914 if (cdns->in_lpm) in cdns3_device_irq_handler()
1918 reg = readl(&priv_dev->regs->usb_ists); in cdns3_device_irq_handler()
1927 reg = ~reg & readl(&priv_dev->regs->usb_ien); in cdns3_device_irq_handler()
1929 writel(reg, &priv_dev->regs->usb_ien); in cdns3_device_irq_handler()
1934 reg = readl(&priv_dev->regs->ep_ists); in cdns3_device_irq_handler()
1936 writel(0, &priv_dev->regs->ep_ien); in cdns3_device_irq_handler()
1944 * cdns3_device_thread_irq_handler- interrupt handler for device part
1960 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_device_thread_irq_handler()
1962 reg = readl(&priv_dev->regs->usb_ists); in cdns3_device_thread_irq_handler()
1964 writel(reg, &priv_dev->regs->usb_ists); in cdns3_device_thread_irq_handler()
1965 writel(USB_IEN_INIT, &priv_dev->regs->usb_ien); in cdns3_device_thread_irq_handler()
1970 reg = readl(&priv_dev->regs->ep_ists); in cdns3_device_thread_irq_handler()
1991 cdns3_check_ep_interrupt_proceed(priv_dev->eps[bit]); in cdns3_device_thread_irq_handler()
1995 if (priv_dev->dev_ver < DEV_VER_V2 && priv_dev->using_streams) in cdns3_device_thread_irq_handler()
1999 writel(~0, &priv_dev->regs->ep_ien); in cdns3_device_thread_irq_handler()
2000 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_device_thread_irq_handler()
2006 * cdns3_ep_onchip_buffer_reserve - Try to reserve onchip buf for EP
2023 remained = priv_dev->onchip_buffers - priv_dev->onchip_used_size - 2; in cdns3_ep_onchip_buffer_reserve()
2027 return -EPERM; in cdns3_ep_onchip_buffer_reserve()
2029 priv_dev->onchip_used_size += size; in cdns3_ep_onchip_buffer_reserve()
2037 if (priv_dev->out_mem_is_allocated >= size) in cdns3_ep_onchip_buffer_reserve()
2040 required = size - priv_dev->out_mem_is_allocated; in cdns3_ep_onchip_buffer_reserve()
2043 return -EPERM; in cdns3_ep_onchip_buffer_reserve()
2045 priv_dev->out_mem_is_allocated += required; in cdns3_ep_onchip_buffer_reserve()
2046 priv_dev->onchip_used_size += required; in cdns3_ep_onchip_buffer_reserve()
2055 struct cdns3_usb_regs __iomem *regs = priv_dev->regs; in cdns3_configure_dmult()
2058 if (priv_dev->dev_ver <= DEV_VER_V2) in cdns3_configure_dmult()
2059 writel(USB_CONF_DMULT, ®s->usb_conf); in cdns3_configure_dmult()
2061 if (priv_dev->dev_ver == DEV_VER_V2) in cdns3_configure_dmult()
2062 writel(USB_CONF2_EN_TDL_TRB, ®s->usb_conf2); in cdns3_configure_dmult()
2064 if (priv_dev->dev_ver >= DEV_VER_V3 && priv_ep) { in cdns3_configure_dmult()
2067 if (priv_ep->dir) in cdns3_configure_dmult()
2068 mask = BIT(priv_ep->num + 16); in cdns3_configure_dmult()
2070 mask = BIT(priv_ep->num); in cdns3_configure_dmult()
2072 if (priv_ep->type != USB_ENDPOINT_XFER_ISOC && !priv_ep->dir) { in cdns3_configure_dmult()
2073 cdns3_set_register_bit(®s->tdl_from_trb, mask); in cdns3_configure_dmult()
2074 cdns3_set_register_bit(®s->tdl_beh, mask); in cdns3_configure_dmult()
2075 cdns3_set_register_bit(®s->tdl_beh2, mask); in cdns3_configure_dmult()
2076 cdns3_set_register_bit(®s->dma_adv_td, mask); in cdns3_configure_dmult()
2079 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && !priv_ep->dir) in cdns3_configure_dmult()
2080 cdns3_set_register_bit(®s->tdl_from_trb, mask); in cdns3_configure_dmult()
2082 cdns3_set_register_bit(®s->dtrans, mask); in cdns3_configure_dmult()
2093 bool is_iso_ep = (priv_ep->type == USB_ENDPOINT_XFER_ISOC); in cdns3_ep_config()
2094 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_ep_config()
2095 u32 bEndpointAddress = priv_ep->num | priv_ep->dir; in cdns3_ep_config()
2096 u32 max_packet_size = priv_ep->wMaxPacketSize; in cdns3_ep_config()
2097 u8 maxburst = priv_ep->bMaxBurst; in cdns3_ep_config()
2102 buffering = priv_dev->ep_buf_size - 1; in cdns3_ep_config()
2106 switch (priv_ep->type) { in cdns3_ep_config()
2110 if (priv_dev->dev_ver >= DEV_VER_V2 && !priv_ep->dir) in cdns3_ep_config()
2116 if (priv_dev->dev_ver >= DEV_VER_V2 && !priv_ep->dir) in cdns3_ep_config()
2121 buffering = (priv_ep->bMaxBurst + 1) * (priv_ep->mult + 1) - 1; in cdns3_ep_config()
2124 switch (priv_dev->gadget.speed) { in cdns3_ep_config()
2132 if (priv_ep->type != USB_ENDPOINT_XFER_ISOC) { in cdns3_ep_config()
2134 maxburst = priv_dev->ep_buf_size - 1; in cdns3_ep_config()
2139 return -EINVAL; in cdns3_ep_config()
2143 priv_ep->trb_burst_size = 128; in cdns3_ep_config()
2145 priv_ep->trb_burst_size = 64; in cdns3_ep_config()
2147 priv_ep->trb_burst_size = 16; in cdns3_ep_config()
2152 * address is not aligned to 128 Bytes (which is a product of the 64-bit AXI in cdns3_ep_config()
2155 * specifically occurs from the position (4K - (address & 0x7F)) to 4K. in cdns3_ep_config()
2159 if (priv_dev->dev_ver < DEV_VER_V2) in cdns3_ep_config()
2160 priv_ep->trb_burst_size = 16; in cdns3_ep_config()
2166 if (!priv_dev->hw_configured_flag) { in cdns3_ep_config()
2168 !!priv_ep->dir); in cdns3_ep_config()
2170 dev_err(priv_dev->dev, "onchip mem is full, ep is invalid\n"); in cdns3_ep_config()
2178 if (priv_ep->use_streams && priv_dev->gadget.speed >= USB_SPEED_SUPER) { in cdns3_ep_config()
2179 if (priv_dev->dev_ver >= DEV_VER_V3) { in cdns3_ep_config()
2180 u32 mask = BIT(priv_ep->num + (priv_ep->dir ? 16 : 0)); in cdns3_ep_config()
2186 cdns3_clear_register_bit(&priv_dev->regs->tdl_from_trb, in cdns3_ep_config()
2195 EP_CFG_MULT(priv_ep->mult) | /* must match EP setting */ in cdns3_ep_config()
2200 writel(ep_cfg, &priv_dev->regs->ep_cfg); in cdns3_ep_config()
2201 priv_ep->flags |= EP_CONFIGURED; in cdns3_ep_config()
2203 dev_dbg(priv_dev->dev, "Configure %s: with val %08x\n", in cdns3_ep_config()
2204 priv_ep->name, ep_cfg); in cdns3_ep_config()
2213 return (priv_ep->endpoint.caps.dir_in && usb_endpoint_dir_in(desc)) || in cdns3_ep_dir_is_correct()
2214 (priv_ep->endpoint.caps.dir_out && usb_endpoint_dir_out(desc)); in cdns3_ep_dir_is_correct()
2224 list_for_each_entry(ep, &priv_dev->gadget.ep_list, ep_list) { in cdns3_find_available_ep()
2228 char c[2] = {ep->name[2], '\0'}; in cdns3_find_available_ep()
2236 if (!(priv_ep->flags & EP_CLAIMED)) { in cdns3_find_available_ep()
2237 priv_ep->num = num; in cdns3_find_available_ep()
2243 return ERR_PTR(-ENOENT); in cdns3_find_available_ep()
2258 * At usb_ep_ops.enable/disable, we only enable and disable endpoint through
2273 dev_err(priv_dev->dev, "no available ep\n"); in cdns3_gadget_match_ep()
2277 dev_dbg(priv_dev->dev, "match endpoint: %s\n", priv_ep->name); in cdns3_gadget_match_ep()
2279 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_match_ep()
2280 priv_ep->endpoint.desc = desc; in cdns3_gadget_match_ep()
2281 priv_ep->dir = usb_endpoint_dir_in(desc) ? USB_DIR_IN : USB_DIR_OUT; in cdns3_gadget_match_ep()
2282 priv_ep->type = usb_endpoint_type(desc); in cdns3_gadget_match_ep()
2283 priv_ep->flags |= EP_CLAIMED; in cdns3_gadget_match_ep()
2284 priv_ep->interval = desc->bInterval ? BIT(desc->bInterval - 1) : 0; in cdns3_gadget_match_ep()
2285 priv_ep->wMaxPacketSize = usb_endpoint_maxp(desc); in cdns3_gadget_match_ep()
2286 priv_ep->mult = USB_EP_MAXP_MULT(priv_ep->wMaxPacketSize); in cdns3_gadget_match_ep()
2287 priv_ep->wMaxPacketSize &= USB_ENDPOINT_MAXP_MASK; in cdns3_gadget_match_ep()
2288 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && comp_desc) { in cdns3_gadget_match_ep()
2289 priv_ep->mult = USB_SS_MULT(comp_desc->bmAttributes) - 1; in cdns3_gadget_match_ep()
2290 priv_ep->bMaxBurst = comp_desc->bMaxBurst; in cdns3_gadget_match_ep()
2293 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_match_ep()
2294 return &priv_ep->endpoint; in cdns3_gadget_match_ep()
2314 priv_req->priv_ep = priv_ep; in cdns3_gadget_ep_alloc_request()
2317 return &priv_req->request; in cdns3_gadget_ep_alloc_request()
2330 if (priv_req->aligned_buf) in cdns3_gadget_ep_free_request()
2331 priv_req->aligned_buf->in_use = 0; in cdns3_gadget_ep_free_request()
2359 return -EINVAL; in cdns3_gadget_ep_enable()
2363 priv_dev = priv_ep->cdns3_dev; in cdns3_gadget_ep_enable()
2364 comp_desc = priv_ep->endpoint.comp_desc; in cdns3_gadget_ep_enable()
2366 if (!desc || desc->bDescriptorType != USB_DT_ENDPOINT) { in cdns3_gadget_ep_enable()
2367 dev_dbg(priv_dev->dev, "usbss: invalid parameters\n"); in cdns3_gadget_ep_enable()
2368 return -EINVAL; in cdns3_gadget_ep_enable()
2371 if (!desc->wMaxPacketSize) { in cdns3_gadget_ep_enable()
2372 dev_err(priv_dev->dev, "usbss: missing wMaxPacketSize\n"); in cdns3_gadget_ep_enable()
2373 return -EINVAL; in cdns3_gadget_ep_enable()
2376 if (dev_WARN_ONCE(priv_dev->dev, priv_ep->flags & EP_ENABLED, in cdns3_gadget_ep_enable()
2377 "%s is already enabled\n", priv_ep->name)) in cdns3_gadget_ep_enable()
2380 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_ep_enable()
2382 priv_ep->endpoint.desc = desc; in cdns3_gadget_ep_enable()
2383 priv_ep->type = usb_endpoint_type(desc); in cdns3_gadget_ep_enable()
2384 priv_ep->interval = desc->bInterval ? BIT(desc->bInterval - 1) : 0; in cdns3_gadget_ep_enable()
2386 if (priv_ep->interval > ISO_MAX_INTERVAL && in cdns3_gadget_ep_enable()
2387 priv_ep->type == USB_ENDPOINT_XFER_ISOC) { in cdns3_gadget_ep_enable()
2388 dev_err(priv_dev->dev, "Driver is limited to %d period\n", in cdns3_gadget_ep_enable()
2391 ret = -EINVAL; in cdns3_gadget_ep_enable()
2395 bEndpointAddress = priv_ep->num | priv_ep->dir; in cdns3_gadget_ep_enable()
2400 * DMA reads Transfer Ring for the EP which has never got doorbell. in cdns3_gadget_ep_enable()
2406 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && !priv_ep->dir) in cdns3_gadget_ep_enable()
2414 if (priv_dev->gadget.speed >= USB_SPEED_SUPER) { in cdns3_gadget_ep_enable()
2418 priv_ep->use_streams = true; in cdns3_gadget_ep_enable()
2420 priv_dev->using_streams |= true; in cdns3_gadget_ep_enable()
2433 bEndpointAddress = priv_ep->num | priv_ep->dir; in cdns3_gadget_ep_enable()
2438 writel(EP_CMD_EPRST, &priv_dev->regs->ep_cmd); in cdns3_gadget_ep_enable()
2440 ret = readl_poll_timeout_atomic(&priv_dev->regs->ep_cmd, val, in cdns3_gadget_ep_enable()
2446 ret = -EINVAL; in cdns3_gadget_ep_enable()
2451 cdns3_set_register_bit(&priv_dev->regs->ep_ien, in cdns3_gadget_ep_enable()
2454 if (priv_dev->dev_ver < DEV_VER_V2) in cdns3_gadget_ep_enable()
2457 writel(reg, &priv_dev->regs->ep_sts_en); in cdns3_gadget_ep_enable()
2459 ep->desc = desc; in cdns3_gadget_ep_enable()
2460 priv_ep->flags &= ~(EP_PENDING_REQUEST | EP_STALLED | EP_STALL_PENDING | in cdns3_gadget_ep_enable()
2462 priv_ep->flags |= EP_ENABLED | EP_UPDATE_EP_TRBADDR; in cdns3_gadget_ep_enable()
2463 priv_ep->wa1_set = 0; in cdns3_gadget_ep_enable()
2464 priv_ep->enqueue = 0; in cdns3_gadget_ep_enable()
2465 priv_ep->dequeue = 0; in cdns3_gadget_ep_enable()
2466 reg = readl(&priv_dev->regs->ep_sts); in cdns3_gadget_ep_enable()
2467 priv_ep->pcs = !!EP_STS_CCS(reg); in cdns3_gadget_ep_enable()
2468 priv_ep->ccs = !!EP_STS_CCS(reg); in cdns3_gadget_ep_enable()
2470 priv_ep->free_trbs = priv_ep->num_trbs - 1; in cdns3_gadget_ep_enable()
2472 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_ep_enable()
2478 * cdns3_gadget_ep_disable Disable endpoint
2496 return -EINVAL; in cdns3_gadget_ep_disable()
2500 priv_dev = priv_ep->cdns3_dev; in cdns3_gadget_ep_disable()
2502 if (dev_WARN_ONCE(priv_dev->dev, !(priv_ep->flags & EP_ENABLED), in cdns3_gadget_ep_disable()
2503 "%s is already disabled\n", priv_ep->name)) in cdns3_gadget_ep_disable()
2506 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_ep_disable()
2510 cdns3_select_ep(priv_dev, ep->desc->bEndpointAddress); in cdns3_gadget_ep_disable()
2512 ep_cfg = readl(&priv_dev->regs->ep_cfg); in cdns3_gadget_ep_disable()
2514 writel(ep_cfg, &priv_dev->regs->ep_cfg); in cdns3_gadget_ep_disable()
2521 readl_poll_timeout_atomic(&priv_dev->regs->ep_sts, val, in cdns3_gadget_ep_disable()
2523 writel(EP_CMD_EPRST, &priv_dev->regs->ep_cmd); in cdns3_gadget_ep_disable()
2525 readl_poll_timeout_atomic(&priv_dev->regs->ep_cmd, val, in cdns3_gadget_ep_disable()
2529 dev_err(priv_dev->dev, "Timeout: %s resetting failed.\n", in cdns3_gadget_ep_disable()
2530 priv_ep->name); in cdns3_gadget_ep_disable()
2532 while (!list_empty(&priv_ep->pending_req_list)) { in cdns3_gadget_ep_disable()
2533 request = cdns3_next_request(&priv_ep->pending_req_list); in cdns3_gadget_ep_disable()
2536 -ESHUTDOWN); in cdns3_gadget_ep_disable()
2539 while (!list_empty(&priv_ep->wa2_descmiss_req_list)) { in cdns3_gadget_ep_disable()
2540 priv_req = cdns3_next_priv_request(&priv_ep->wa2_descmiss_req_list); in cdns3_gadget_ep_disable()
2542 kfree(priv_req->request.buf); in cdns3_gadget_ep_disable()
2543 cdns3_gadget_ep_free_request(&priv_ep->endpoint, in cdns3_gadget_ep_disable()
2544 &priv_req->request); in cdns3_gadget_ep_disable()
2545 list_del_init(&priv_req->list); in cdns3_gadget_ep_disable()
2546 --priv_ep->wa2_counter; in cdns3_gadget_ep_disable()
2549 while (!list_empty(&priv_ep->deferred_req_list)) { in cdns3_gadget_ep_disable()
2550 request = cdns3_next_request(&priv_ep->deferred_req_list); in cdns3_gadget_ep_disable()
2553 -ESHUTDOWN); in cdns3_gadget_ep_disable()
2556 priv_ep->descmis_req = NULL; in cdns3_gadget_ep_disable()
2558 ep->desc = NULL; in cdns3_gadget_ep_disable()
2559 priv_ep->flags &= ~EP_ENABLED; in cdns3_gadget_ep_disable()
2560 priv_ep->use_streams = false; in cdns3_gadget_ep_disable()
2562 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_ep_disable()
2580 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in __cdns3_gadget_ep_queue()
2584 request->actual = 0; in __cdns3_gadget_ep_queue()
2585 request->status = -EINPROGRESS; in __cdns3_gadget_ep_queue()
2589 if (priv_dev->dev_ver < DEV_VER_V2) { in __cdns3_gadget_ep_queue()
2601 ret = usb_gadget_map_request_by_dev(priv_dev->sysdev, request, in __cdns3_gadget_ep_queue()
2602 usb_endpoint_dir_in(ep->desc)); in __cdns3_gadget_ep_queue()
2606 list_add_tail(&request->list, &priv_ep->deferred_req_list); in __cdns3_gadget_ep_queue()
2615 if (!request->stream_id) { in __cdns3_gadget_ep_queue()
2616 if (priv_dev->hw_configured_flag && in __cdns3_gadget_ep_queue()
2617 !(priv_ep->flags & EP_STALLED) && in __cdns3_gadget_ep_queue()
2618 !(priv_ep->flags & EP_STALL_PENDING)) in __cdns3_gadget_ep_queue()
2621 if (priv_dev->hw_configured_flag && priv_ep->prime_flag) in __cdns3_gadget_ep_queue()
2638 return -EINVAL; in cdns3_gadget_ep_queue()
2641 priv_dev = priv_ep->cdns3_dev; in cdns3_gadget_ep_queue()
2643 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_ep_queue()
2647 if (ret == 0 && request->zero && request->length && in cdns3_gadget_ep_queue()
2648 (request->length % ep->maxpacket == 0)) { in cdns3_gadget_ep_queue()
2652 zlp_request->buf = priv_dev->zlp_buf; in cdns3_gadget_ep_queue()
2653 zlp_request->length = 0; in cdns3_gadget_ep_queue()
2656 priv_req->flags |= REQUEST_ZLP; in cdns3_gadget_ep_queue()
2658 dev_dbg(priv_dev->dev, "Queuing ZLP for endpoint: %s\n", in cdns3_gadget_ep_queue()
2659 priv_ep->name); in cdns3_gadget_ep_queue()
2663 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_ep_queue()
2686 if (!ep || !request || !ep->desc) in cdns3_gadget_ep_dequeue()
2687 return -EINVAL; in cdns3_gadget_ep_dequeue()
2689 priv_dev = priv_ep->cdns3_dev; in cdns3_gadget_ep_dequeue()
2691 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_ep_dequeue()
2697 cdns3_select_ep(priv_dev, ep->desc->bEndpointAddress); in cdns3_gadget_ep_dequeue()
2699 list_for_each_entry_safe(req, req_temp, &priv_ep->pending_req_list, in cdns3_gadget_ep_dequeue()
2707 list_for_each_entry_safe(req, req_temp, &priv_ep->deferred_req_list, in cdns3_gadget_ep_dequeue()
2716 link_trb = priv_req->trb; in cdns3_gadget_ep_dequeue()
2718 /* Update ring only if removed request is on pending_req_list list */ in cdns3_gadget_ep_dequeue()
2720 link_trb->buffer = cpu_to_le32(TRB_BUFFER(priv_ep->trb_pool_dma + in cdns3_gadget_ep_dequeue()
2721 ((priv_req->end_trb + 1) * TRB_SIZE))); in cdns3_gadget_ep_dequeue()
2722 link_trb->control = cpu_to_le32((le32_to_cpu(link_trb->control) & TRB_CYCLE) | in cdns3_gadget_ep_dequeue()
2725 if (priv_ep->wa1_trb == priv_req->trb) in cdns3_gadget_ep_dequeue()
2729 cdns3_gadget_giveback(priv_ep, priv_req, -ECONNRESET); in cdns3_gadget_ep_dequeue()
2732 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_ep_dequeue()
2743 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in __cdns3_gadget_ep_set_halt()
2747 if (!(priv_ep->flags & EP_STALLED)) { in __cdns3_gadget_ep_set_halt()
2748 u32 ep_sts_reg = readl(&priv_dev->regs->ep_sts); in __cdns3_gadget_ep_set_halt()
2753 priv_ep->flags |= EP_STALL_PENDING; in __cdns3_gadget_ep_set_halt()
2764 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in __cdns3_gadget_ep_clear_halt()
2774 request = cdns3_next_request(&priv_ep->pending_req_list); in __cdns3_gadget_ep_clear_halt()
2777 trb = priv_req->trb; in __cdns3_gadget_ep_clear_halt()
2780 trb->control = trb->control ^ cpu_to_le32(TRB_CYCLE); in __cdns3_gadget_ep_clear_halt()
2784 writel(EP_CMD_CSTALL | EP_CMD_EPRST, &priv_dev->regs->ep_cmd); in __cdns3_gadget_ep_clear_halt()
2787 ret = readl_poll_timeout_atomic(&priv_dev->regs->ep_cmd, val, in __cdns3_gadget_ep_clear_halt()
2790 return -EINVAL; in __cdns3_gadget_ep_clear_halt()
2792 priv_ep->flags &= ~(EP_STALLED | EP_STALL_PENDING); in __cdns3_gadget_ep_clear_halt()
2815 struct cdns3_device *priv_dev = priv_ep->cdns3_dev; in cdns3_gadget_ep_set_halt()
2819 if (!(priv_ep->flags & EP_ENABLED)) in cdns3_gadget_ep_set_halt()
2820 return -EPERM; in cdns3_gadget_ep_set_halt()
2822 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_ep_set_halt()
2824 cdns3_select_ep(priv_dev, ep->desc->bEndpointAddress); in cdns3_gadget_ep_set_halt()
2827 priv_ep->flags &= ~EP_WEDGE; in cdns3_gadget_ep_set_halt()
2833 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_ep_set_halt()
2842 .disable = cdns3_gadget_ep_disable,
2861 return readl(&priv_dev->regs->usb_itpn); in cdns3_gadget_get_frame()
2874 writel(USB_CONF_LGO_L0, &priv_dev->regs->usb_conf); in __cdns3_gadget_wakeup()
2885 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_wakeup()
2887 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_wakeup()
2897 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_set_selfpowered()
2898 priv_dev->is_selfpowered = !!is_selfpowered; in cdns3_gadget_set_selfpowered()
2899 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_set_selfpowered()
2908 writel(USB_CONF_DEVEN, &priv_dev->regs->usb_conf); in cdns3_gadget_pullup()
2910 writel(~0, &priv_dev->regs->ep_ists); in cdns3_gadget_pullup()
2911 writel(~0, &priv_dev->regs->usb_ists); in cdns3_gadget_pullup()
2912 writel(USB_CONF_DEVDS, &priv_dev->regs->usb_conf); in cdns3_gadget_pullup()
2920 struct cdns3_usb_regs __iomem *regs = priv_dev->regs; in cdns3_gadget_config()
2926 writel(EP_IEN_EP_OUT0 | EP_IEN_EP_IN0, ®s->ep_ien); in cdns3_gadget_config()
2932 if (priv_dev->dev_ver == DEV_VER_TI_V1) { in cdns3_gadget_config()
2933 reg = readl(®s->dbg_link1); in cdns3_gadget_config()
2938 writel(reg, ®s->dbg_link1); in cdns3_gadget_config()
2943 * This cause problem with cache, so driver restore non-secure in cdns3_gadget_config()
2946 reg = readl(®s->dma_axi_ctrl); in cdns3_gadget_config()
2949 writel(reg, ®s->dma_axi_ctrl); in cdns3_gadget_config()
2952 writel(USB_IEN_INIT, ®s->usb_ien); in cdns3_gadget_config()
2953 writel(USB_CONF_CLK2OFFDS | USB_CONF_L1DS, ®s->usb_conf); in cdns3_gadget_config()
2955 writel(PUSB_PWR_FST_REG_ACCESS, &priv_dev->regs->usb_pwr); in cdns3_gadget_config()
2972 enum usb_device_speed max_speed = driver->max_speed; in cdns3_gadget_udc_start()
2974 spin_lock_irqsave(&priv_dev->lock, flags); in cdns3_gadget_udc_start()
2975 priv_dev->gadget_driver = driver; in cdns3_gadget_udc_start()
2978 max_speed = min(driver->max_speed, gadget->max_speed); in cdns3_gadget_udc_start()
2982 writel(USB_CONF_SFORCE_FS, &priv_dev->regs->usb_conf); in cdns3_gadget_udc_start()
2983 writel(USB_CONF_USB3DIS, &priv_dev->regs->usb_conf); in cdns3_gadget_udc_start()
2986 writel(USB_CONF_USB3DIS, &priv_dev->regs->usb_conf); in cdns3_gadget_udc_start()
2991 dev_err(priv_dev->dev, in cdns3_gadget_udc_start()
3002 spin_unlock_irqrestore(&priv_dev->lock, flags); in cdns3_gadget_udc_start()
3020 priv_dev->gadget_driver = NULL; in cdns3_gadget_udc_stop()
3022 priv_dev->onchip_used_size = 0; in cdns3_gadget_udc_stop()
3023 priv_dev->out_mem_is_allocated = 0; in cdns3_gadget_udc_stop()
3024 priv_dev->gadget.speed = USB_SPEED_UNKNOWN; in cdns3_gadget_udc_stop()
3026 list_for_each_entry(ep, &priv_dev->gadget.ep_list, ep_list) { in cdns3_gadget_udc_stop()
3028 bEndpointAddress = priv_ep->num | priv_ep->dir; in cdns3_gadget_udc_stop()
3030 writel(EP_CMD_EPRST, &priv_dev->regs->ep_cmd); in cdns3_gadget_udc_stop()
3031 readl_poll_timeout_atomic(&priv_dev->regs->ep_cmd, val, in cdns3_gadget_udc_stop()
3034 priv_ep->flags &= ~EP_CLAIMED; in cdns3_gadget_udc_stop()
3037 /* disable interrupt for device */ in cdns3_gadget_udc_stop()
3038 writel(0, &priv_dev->regs->usb_ien); in cdns3_gadget_udc_stop()
3039 writel(0, &priv_dev->regs->usb_pwr); in cdns3_gadget_udc_stop()
3040 writel(USB_CONF_DEVDS, &priv_dev->regs->usb_conf); in cdns3_gadget_udc_stop()
3046 * cdns3_gadget_check_config - ensure cdns3 can support the USB configuration
3066 list_for_each_entry(ep, &gadget->ep_list, ep_list) { in cdns3_gadget_check_config()
3068 if (!(priv_ep->flags & EP_CLAIMED)) in cdns3_gadget_check_config()
3071 n = (priv_ep->mult + 1) * (priv_ep->bMaxBurst + 1); in cdns3_gadget_check_config()
3072 if (ep->address & USB_DIR_IN) { in cdns3_gadget_check_config()
3078 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC) in cdns3_gadget_check_config()
3083 if (priv_ep->type == USB_ENDPOINT_XFER_ISOC) in cdns3_gadget_check_config()
3091 if (total > priv_dev->onchip_buffers) in cdns3_gadget_check_config()
3092 return -ENOMEM; in cdns3_gadget_check_config()
3094 priv_dev->ep_buf_size = (priv_dev->onchip_buffers - 2 - iso) / (n_in + out); in cdns3_gadget_check_config()
3103 .pullup = cdns3_gadget_pullup,
3115 priv_dev->eps[16] = NULL; in cdns3_free_all_eps()
3118 if (priv_dev->eps[i]) { in cdns3_free_all_eps()
3119 cdns3_free_trb_pool(priv_dev->eps[i]); in cdns3_free_all_eps()
3120 devm_kfree(priv_dev->dev, priv_dev->eps[i]); in cdns3_free_all_eps()
3140 ep_enabled_reg = readl(&priv_dev->regs->usb_cap3); in cdns3_init_eps()
3141 iso_ep_reg = readl(&priv_dev->regs->usb_cap4); in cdns3_init_eps()
3143 dev_dbg(priv_dev->dev, "Initializing non-zero endpoints\n"); in cdns3_init_eps()
3154 priv_dev->eps[i] = priv_dev->eps[0]; in cdns3_init_eps()
3158 priv_ep = devm_kzalloc(priv_dev->dev, sizeof(*priv_ep), in cdns3_init_eps()
3164 priv_ep->cdns3_dev = priv_dev; in cdns3_init_eps()
3165 priv_dev->eps[i] = priv_ep; in cdns3_init_eps()
3166 priv_ep->num = ep_number; in cdns3_init_eps()
3167 priv_ep->dir = ep_dir ? USB_DIR_IN : USB_DIR_OUT; in cdns3_init_eps()
3172 dev_err(priv_dev->dev, "Failed to init ep0\n"); in cdns3_init_eps()
3176 snprintf(priv_ep->name, sizeof(priv_ep->name), "ep%d%s", in cdns3_init_eps()
3178 priv_ep->endpoint.name = priv_ep->name; in cdns3_init_eps()
3180 usb_ep_set_maxpacket_limit(&priv_ep->endpoint, in cdns3_init_eps()
3182 priv_ep->endpoint.max_streams = CDNS3_EP_MAX_STREAMS; in cdns3_init_eps()
3183 priv_ep->endpoint.ops = &cdns3_gadget_ep_ops; in cdns3_init_eps()
3185 priv_ep->endpoint.caps.dir_in = 1; in cdns3_init_eps()
3187 priv_ep->endpoint.caps.dir_out = 1; in cdns3_init_eps()
3190 priv_ep->endpoint.caps.type_iso = 1; in cdns3_init_eps()
3192 priv_ep->endpoint.caps.type_bulk = 1; in cdns3_init_eps()
3193 priv_ep->endpoint.caps.type_int = 1; in cdns3_init_eps()
3195 list_add_tail(&priv_ep->endpoint.ep_list, in cdns3_init_eps()
3196 &priv_dev->gadget.ep_list); in cdns3_init_eps()
3199 priv_ep->flags = 0; in cdns3_init_eps()
3201 dev_dbg(priv_dev->dev, "Initialized %s support: %s %s\n", in cdns3_init_eps()
3202 priv_ep->name, in cdns3_init_eps()
3203 priv_ep->endpoint.caps.type_bulk ? "BULK, INT" : "", in cdns3_init_eps()
3204 priv_ep->endpoint.caps.type_iso ? "ISO" : ""); in cdns3_init_eps()
3206 INIT_LIST_HEAD(&priv_ep->pending_req_list); in cdns3_init_eps()
3207 INIT_LIST_HEAD(&priv_ep->deferred_req_list); in cdns3_init_eps()
3208 INIT_LIST_HEAD(&priv_ep->wa2_descmiss_req_list); in cdns3_init_eps()
3214 return -ENOMEM; in cdns3_init_eps()
3229 priv_dev = cdns->gadget_dev; in cdns3_gadget_exit()
3232 pm_runtime_mark_last_busy(cdns->dev); in cdns3_gadget_exit()
3233 pm_runtime_put_autosuspend(cdns->dev); in cdns3_gadget_exit()
3235 usb_del_gadget(&priv_dev->gadget); in cdns3_gadget_exit()
3236 devm_free_irq(cdns->dev, cdns->dev_irq, priv_dev); in cdns3_gadget_exit()
3240 while (!list_empty(&priv_dev->aligned_buf_list)) { in cdns3_gadget_exit()
3243 buf = cdns3_next_align_buf(&priv_dev->aligned_buf_list); in cdns3_gadget_exit()
3244 dma_free_coherent(priv_dev->sysdev, buf->size, in cdns3_gadget_exit()
3245 buf->buf, in cdns3_gadget_exit()
3246 buf->dma); in cdns3_gadget_exit()
3248 list_del(&buf->list); in cdns3_gadget_exit()
3252 dma_free_coherent(priv_dev->sysdev, 8, priv_dev->setup_buf, in cdns3_gadget_exit()
3253 priv_dev->setup_dma); in cdns3_gadget_exit()
3255 kfree(priv_dev->zlp_buf); in cdns3_gadget_exit()
3256 usb_put_gadget(&priv_dev->gadget); in cdns3_gadget_exit()
3257 cdns->gadget_dev = NULL; in cdns3_gadget_exit()
3269 return -ENOMEM; in cdns3_gadget_start()
3271 usb_initialize_gadget(cdns->dev, &priv_dev->gadget, in cdns3_gadget_start()
3273 cdns->gadget_dev = priv_dev; in cdns3_gadget_start()
3274 priv_dev->sysdev = cdns->dev; in cdns3_gadget_start()
3275 priv_dev->dev = cdns->dev; in cdns3_gadget_start()
3276 priv_dev->regs = cdns->dev_regs; in cdns3_gadget_start()
3278 device_property_read_u16(priv_dev->dev, "cdns,on-chip-buff-size", in cdns3_gadget_start()
3279 &priv_dev->onchip_buffers); in cdns3_gadget_start()
3281 if (priv_dev->onchip_buffers <= 0) { in cdns3_gadget_start()
3282 u32 reg = readl(&priv_dev->regs->usb_cap2); in cdns3_gadget_start()
3284 priv_dev->onchip_buffers = USB_CAP2_ACTUAL_MEM_SIZE(reg); in cdns3_gadget_start()
3287 if (!priv_dev->onchip_buffers) in cdns3_gadget_start()
3288 priv_dev->onchip_buffers = 256; in cdns3_gadget_start()
3290 max_speed = usb_get_maximum_speed(cdns->dev); in cdns3_gadget_start()
3299 dev_err(cdns->dev, "invalid maximum_speed parameter %d\n", in cdns3_gadget_start()
3309 priv_dev->gadget.max_speed = max_speed; in cdns3_gadget_start()
3310 priv_dev->gadget.speed = USB_SPEED_UNKNOWN; in cdns3_gadget_start()
3311 priv_dev->gadget.ops = &cdns3_gadget_ops; in cdns3_gadget_start()
3312 priv_dev->gadget.name = "usb-ss-gadget"; in cdns3_gadget_start()
3313 priv_dev->gadget.quirk_avoids_skb_reserve = 1; in cdns3_gadget_start()
3314 priv_dev->gadget.irq = cdns->dev_irq; in cdns3_gadget_start()
3316 spin_lock_init(&priv_dev->lock); in cdns3_gadget_start()
3317 INIT_WORK(&priv_dev->pending_status_wq, in cdns3_gadget_start()
3320 INIT_WORK(&priv_dev->aligned_buf_wq, in cdns3_gadget_start()
3324 INIT_LIST_HEAD(&priv_dev->gadget.ep_list); in cdns3_gadget_start()
3325 INIT_LIST_HEAD(&priv_dev->aligned_buf_list); in cdns3_gadget_start()
3329 dev_err(priv_dev->dev, "Failed to create endpoints\n"); in cdns3_gadget_start()
3334 priv_dev->setup_buf = dma_alloc_coherent(priv_dev->sysdev, 8, in cdns3_gadget_start()
3335 &priv_dev->setup_dma, GFP_DMA); in cdns3_gadget_start()
3336 if (!priv_dev->setup_buf) { in cdns3_gadget_start()
3337 ret = -ENOMEM; in cdns3_gadget_start()
3341 priv_dev->dev_ver = readl(&priv_dev->regs->usb_cap6); in cdns3_gadget_start()
3343 dev_dbg(priv_dev->dev, "Device Controller version: %08x\n", in cdns3_gadget_start()
3344 readl(&priv_dev->regs->usb_cap6)); in cdns3_gadget_start()
3345 dev_dbg(priv_dev->dev, "USB Capabilities:: %08x\n", in cdns3_gadget_start()
3346 readl(&priv_dev->regs->usb_cap1)); in cdns3_gadget_start()
3347 dev_dbg(priv_dev->dev, "On-Chip memory configuration: %08x\n", in cdns3_gadget_start()
3348 readl(&priv_dev->regs->usb_cap2)); in cdns3_gadget_start()
3350 priv_dev->dev_ver = GET_DEV_BASE_VERSION(priv_dev->dev_ver); in cdns3_gadget_start()
3351 if (priv_dev->dev_ver >= DEV_VER_V2) in cdns3_gadget_start()
3352 priv_dev->gadget.sg_supported = 1; in cdns3_gadget_start()
3354 priv_dev->zlp_buf = kzalloc(CDNS3_EP_ZLP_BUF_SIZE, GFP_KERNEL); in cdns3_gadget_start()
3355 if (!priv_dev->zlp_buf) { in cdns3_gadget_start()
3356 ret = -ENOMEM; in cdns3_gadget_start()
3361 ret = usb_add_gadget(&priv_dev->gadget); in cdns3_gadget_start()
3363 dev_err(priv_dev->dev, "Failed to add gadget\n"); in cdns3_gadget_start()
3369 kfree(priv_dev->zlp_buf); in cdns3_gadget_start()
3371 dma_free_coherent(priv_dev->sysdev, 8, priv_dev->setup_buf, in cdns3_gadget_start()
3372 priv_dev->setup_dma); in cdns3_gadget_start()
3376 usb_put_gadget(&priv_dev->gadget); in cdns3_gadget_start()
3377 cdns->gadget_dev = NULL; in cdns3_gadget_start()
3385 /* Ensure 32-bit DMA Mask in case we switched back from Host mode */ in __cdns3_gadget_init()
3386 ret = dma_set_mask_and_coherent(cdns->dev, DMA_BIT_MASK(32)); in __cdns3_gadget_init()
3388 dev_err(cdns->dev, "Failed to set dma mask: %d\n", ret); in __cdns3_gadget_init()
3393 pm_runtime_get_sync(cdns->dev); in __cdns3_gadget_init()
3397 pm_runtime_put_sync(cdns->dev); in __cdns3_gadget_init()
3405 ret = devm_request_threaded_irq(cdns->dev, cdns->dev_irq, in __cdns3_gadget_init()
3408 IRQF_SHARED, dev_name(cdns->dev), in __cdns3_gadget_init()
3409 cdns->gadget_dev); in __cdns3_gadget_init()
3421 __must_hold(&cdns->lock) in cdns3_gadget_suspend()
3423 struct cdns3_device *priv_dev = cdns->gadget_dev; in cdns3_gadget_suspend()
3425 spin_unlock(&cdns->lock); in cdns3_gadget_suspend()
3427 spin_lock(&cdns->lock); in cdns3_gadget_suspend()
3429 priv_dev->gadget.speed = USB_SPEED_UNKNOWN; in cdns3_gadget_suspend()
3430 usb_gadget_set_state(&priv_dev->gadget, USB_STATE_NOTATTACHED); in cdns3_gadget_suspend()
3433 /* disable interrupt for device */ in cdns3_gadget_suspend()
3434 writel(0, &priv_dev->regs->usb_ien); in cdns3_gadget_suspend()
3441 struct cdns3_device *priv_dev = cdns->gadget_dev; in cdns3_gadget_resume()
3443 if (!priv_dev->gadget_driver) in cdns3_gadget_resume()
3452 * cdns3_gadget_init - initialize device structure
3462 rdrv = devm_kzalloc(cdns->dev, sizeof(*rdrv), GFP_KERNEL); in cdns3_gadget_init()
3464 return -ENOMEM; in cdns3_gadget_init()
3466 rdrv->start = __cdns3_gadget_init; in cdns3_gadget_init()
3467 rdrv->stop = cdns3_gadget_exit; in cdns3_gadget_init()
3468 rdrv->suspend = cdns3_gadget_suspend; in cdns3_gadget_init()
3469 rdrv->resume = cdns3_gadget_resume; in cdns3_gadget_init()
3470 rdrv->state = CDNS3_ROLE_STATE_INACTIVE; in cdns3_gadget_init()
3471 rdrv->name = "gadget"; in cdns3_gadget_init()
3472 cdns->roles[USB_ROLE_DEVICE] = rdrv; in cdns3_gadget_init()