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