/* SPDX-License-Identifier: GPL-2.0 *//* * Cadence USBSS DRD Driver. * Debug header file. * * Copyright (C) 2018-2019 Cadence. * * Author: Pawel Laszczak <pawell@cadence.com> */#ifndef __LINUX_CDNS3_DEBUG#define __LINUX_CDNS3_DEBUG #include "core.h" static inline char *cdns3_decode_usb_irq(char *str,					 enum usb_device_speed speed,					 u32 usb_ists){	int ret; 	ret = sprintf(str, "IRQ %08x = ", usb_ists); 	if (usb_ists & (USB_ISTS_CON2I | USB_ISTS_CONI)) {		ret += sprintf(str + ret, "Connection %s\n",			       usb_speed_string(speed));	}	if (usb_ists & USB_ISTS_DIS2I || usb_ists & USB_ISTS_DISI)		ret += sprintf(str + ret, "Disconnection ");	if (usb_ists & USB_ISTS_L2ENTI)		ret += sprintf(str + ret, "suspended ");	if (usb_ists & USB_ISTS_L1ENTI)		ret += sprintf(str + ret, "L1 enter ");	if (usb_ists & USB_ISTS_L1EXTI)		ret += sprintf(str + ret, "L1 exit ");	if (usb_ists & USB_ISTS_L2ENTI)		ret += sprintf(str + ret, "L2 enter ");	if (usb_ists & USB_ISTS_L2EXTI)		ret += sprintf(str + ret, "L2 exit ");	if (usb_ists & USB_ISTS_U3EXTI)		ret += sprintf(str + ret, "U3 exit ");	if (usb_ists & USB_ISTS_UWRESI)		ret += sprintf(str + ret, "Warm Reset ");	if (usb_ists & USB_ISTS_UHRESI)		ret += sprintf(str + ret, "Hot Reset ");	if (usb_ists & USB_ISTS_U2RESI)		ret += sprintf(str + ret, "Reset"); 	return str;} static inline  char *cdns3_decode_ep_irq(char *str,					 u32 ep_sts,					 const char *ep_name){	int ret; 	ret = sprintf(str, "IRQ for %s: %08x ", ep_name, ep_sts); 	if (ep_sts & EP_STS_SETUP)		ret += sprintf(str + ret, "SETUP ");	if (ep_sts & EP_STS_IOC)		ret += sprintf(str + ret, "IOC ");	if (ep_sts & EP_STS_ISP)		ret += sprintf(str + ret, "ISP ");	if (ep_sts & EP_STS_DESCMIS)		ret += sprintf(str + ret, "DESCMIS ");	if (ep_sts & EP_STS_STREAMR)		ret += sprintf(str + ret, "STREAMR ");	if (ep_sts & EP_STS_MD_EXIT)		ret += sprintf(str + ret, "MD_EXIT ");	if (ep_sts & EP_STS_TRBERR)		ret += sprintf(str + ret, "TRBERR ");	if (ep_sts & EP_STS_NRDY)		ret += sprintf(str + ret, "NRDY ");	if (ep_sts & EP_STS_PRIME)		ret += sprintf(str + ret, "PRIME ");	if (ep_sts & EP_STS_SIDERR)		ret += sprintf(str + ret, "SIDERRT ");	if (ep_sts & EP_STS_OUTSMM)		ret += sprintf(str + ret, "OUTSMM ");	if (ep_sts & EP_STS_ISOERR)		ret += sprintf(str + ret, "ISOERR ");	if (ep_sts & EP_STS_IOT)		ret += sprintf(str + ret, "IOT "); 	return str;} static inline char *cdns3_decode_epx_irq(char *str,					 char *ep_name,					 u32 ep_sts){	return cdns3_decode_ep_irq(str, ep_sts, ep_name);} static inline char *cdns3_decode_ep0_irq(char *str,					 int dir,					 u32 ep_sts){	return cdns3_decode_ep_irq(str, ep_sts,				   dir ? "ep0IN" : "ep0OUT");} /** * Debug a transfer ring. * * Prints out all TRBs in the endpoint ring, even those after the Link TRB. *. */static inline char *cdns3_dbg_ring(struct cdns3_endpoint *priv_ep,				   struct cdns3_trb *ring, char *str){	dma_addr_t addr = priv_ep->trb_pool_dma;	struct cdns3_trb *trb;	int trb_per_sector;	int ret = 0;	int i; 	trb_per_sector = GET_TRBS_PER_SEGMENT(priv_ep->type); 	trb = &priv_ep->trb_pool[priv_ep->dequeue];	ret += sprintf(str + ret, "\n\t\tRing contents for %s:", priv_ep->name); 	ret += sprintf(str + ret,		       "\n\t\tRing deq index: %d, trb: %p (virt), 0x%llx (dma)\n",		       priv_ep->dequeue, trb,		       (unsigned long long)cdns3_trb_virt_to_dma(priv_ep, trb)); 	trb = &priv_ep->trb_pool[priv_ep->enqueue];	ret += sprintf(str + ret,		       "\t\tRing enq index: %d, trb: %p (virt), 0x%llx (dma)\n",		       priv_ep->enqueue, trb,		       (unsigned long long)cdns3_trb_virt_to_dma(priv_ep, trb)); 	ret += sprintf(str + ret,		       "\t\tfree trbs: %d, CCS=%d, PCS=%d\n",		       priv_ep->free_trbs, priv_ep->ccs, priv_ep->pcs); 	if (trb_per_sector > TRBS_PER_SEGMENT)		trb_per_sector = TRBS_PER_SEGMENT; 	if (trb_per_sector > TRBS_PER_SEGMENT) {		sprintf(str + ret, "\t\tTransfer ring %d too big\n",			trb_per_sector);		return str;	} 	for (i = 0; i < trb_per_sector; ++i) {		trb = &ring[i];		ret += sprintf(str + ret,			"\t\t@%pad %08x %08x %08x\n", &addr,			le32_to_cpu(trb->buffer),			le32_to_cpu(trb->length),			le32_to_cpu(trb->control));		addr += sizeof(*trb);	} 	return str;} #endif /*__LINUX_CDNS3_DEBUG*/