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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | /* 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, 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) { sprintf(str + ret, "\t\tTransfer ring %d too big\n", trb_per_sector); return str; } for (i = 0; i < trb_per_sector; ++i) { trb = &priv_ep->trb_pool[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*/ |