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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | /* SPDX-License-Identifier: GPL-2.0 */ /* * Cadence USBHS-DEV Driver. * Debug header file. * * Copyright (C) 2023 Cadence. * * Author: Pawel Laszczak <pawell@cadence.com> */ #ifndef __LINUX_CDNS2_DEBUG #define __LINUX_CDNS2_DEBUG static inline const char *cdns2_decode_usb_irq(char *str, size_t size, u8 usb_irq, u8 ext_irq) { int ret; ret = scnprintf(str, size, "usbirq: 0x%02x - ", usb_irq); if (usb_irq & USBIRQ_SOF) ret += scnprintf(str + ret, size - ret, "SOF "); if (usb_irq & USBIRQ_SUTOK) ret += scnprintf(str + ret, size - ret, "SUTOK "); if (usb_irq & USBIRQ_SUDAV) ret += scnprintf(str + ret, size - ret, "SETUP "); if (usb_irq & USBIRQ_SUSPEND) ret += scnprintf(str + ret, size - ret, "Suspend "); if (usb_irq & USBIRQ_URESET) ret += scnprintf(str + ret, size - ret, "Reset "); if (usb_irq & USBIRQ_HSPEED) ret += scnprintf(str + ret, size - ret, "HS "); if (usb_irq & USBIRQ_LPM) ret += scnprintf(str + ret, size - ret, "LPM "); ret += scnprintf(str + ret, size - ret, ", EXT: 0x%02x - ", ext_irq); if (ext_irq & EXTIRQ_WAKEUP) ret += scnprintf(str + ret, size - ret, "Wakeup "); if (ext_irq & EXTIRQ_VBUSFAULT_FALL) ret += scnprintf(str + ret, size - ret, "VBUS_FALL "); if (ext_irq & EXTIRQ_VBUSFAULT_RISE) ret += scnprintf(str + ret, size - ret, "VBUS_RISE "); if (ret == size - 1) pr_info("CDNS2: buffer may be truncated.\n"); return str; } static inline const char *cdns2_decode_dma_irq(char *str, size_t size, u32 ep_ists, u32 ep_sts, const char *ep_name) { int ret; ret = scnprintf(str, size, "ISTS: %08x, %s: %08x ", ep_ists, ep_name, ep_sts); if (ep_sts & DMA_EP_STS_IOC) ret += scnprintf(str + ret, size - ret, "IOC "); if (ep_sts & DMA_EP_STS_ISP) ret += scnprintf(str + ret, size - ret, "ISP "); if (ep_sts & DMA_EP_STS_DESCMIS) ret += scnprintf(str + ret, size - ret, "DESCMIS "); if (ep_sts & DMA_EP_STS_TRBERR) ret += scnprintf(str + ret, size - ret, "TRBERR "); if (ep_sts & DMA_EP_STS_OUTSMM) ret += scnprintf(str + ret, size - ret, "OUTSMM "); if (ep_sts & DMA_EP_STS_ISOERR) ret += scnprintf(str + ret, size - ret, "ISOERR "); if (ep_sts & DMA_EP_STS_DBUSY) ret += scnprintf(str + ret, size - ret, "DBUSY "); if (DMA_EP_STS_CCS(ep_sts)) ret += scnprintf(str + ret, size - ret, "CCS "); if (ret == size - 1) pr_info("CDNS2: buffer may be truncated.\n"); return str; } static inline const char *cdns2_decode_epx_irq(char *str, size_t size, char *ep_name, u32 ep_ists, u32 ep_sts) { return cdns2_decode_dma_irq(str, size, ep_ists, ep_sts, ep_name); } static inline const char *cdns2_decode_ep0_irq(char *str, size_t size, u32 ep_ists, u32 ep_sts, int dir) { return cdns2_decode_dma_irq(str, size, ep_ists, ep_sts, dir ? "ep0IN" : "ep0OUT"); } static inline const char *cdns2_raw_ring(struct cdns2_endpoint *pep, struct cdns2_trb *trbs, char *str, size_t size) { struct cdns2_ring *ring = &pep->ring; struct cdns2_trb *trb; dma_addr_t dma; int ret; int i; ret = scnprintf(str, size, "\n\t\tTR for %s:", pep->name); trb = &trbs[ring->dequeue]; dma = cdns2_trb_virt_to_dma(pep, trb); ret += scnprintf(str + ret, size - ret, "\n\t\tRing deq index: %d, trb: V=%p, P=0x%pad\n", ring->dequeue, trb, &dma); trb = &trbs[ring->enqueue]; dma = cdns2_trb_virt_to_dma(pep, trb); ret += scnprintf(str + ret, size - ret, "\t\tRing enq index: %d, trb: V=%p, P=0x%pad\n", ring->enqueue, trb, &dma); ret += scnprintf(str + ret, size - ret, "\t\tfree trbs: %d, CCS=%d, PCS=%d\n", ring->free_trbs, ring->ccs, ring->pcs); if (TRBS_PER_SEGMENT > 40) { ret += scnprintf(str + ret, size - ret, "\t\tTransfer ring %d too big\n", TRBS_PER_SEGMENT); return str; } dma = ring->dma; for (i = 0; i < TRBS_PER_SEGMENT; ++i) { trb = &trbs[i]; ret += scnprintf(str + ret, size - ret, "\t\t@%pad %08x %08x %08x\n", &dma, le32_to_cpu(trb->buffer), le32_to_cpu(trb->length), le32_to_cpu(trb->control)); dma += sizeof(*trb); } if (ret == size - 1) pr_info("CDNS2: buffer may be truncated.\n"); return str; } static inline const char *cdns2_trb_type_string(u8 type) { switch (type) { case TRB_NORMAL: return "Normal"; case TRB_LINK: return "Link"; default: return "UNKNOWN"; } } static inline const char *cdns2_decode_trb(char *str, size_t size, u32 flags, u32 length, u32 buffer) { int type = TRB_FIELD_TO_TYPE(flags); int ret; switch (type) { case TRB_LINK: ret = scnprintf(str, size, "LINK %08x type '%s' flags %c:%c:%c%c:%c", buffer, cdns2_trb_type_string(type), flags & TRB_CYCLE ? 'C' : 'c', flags & TRB_TOGGLE ? 'T' : 't', flags & TRB_CHAIN ? 'C' : 'c', flags & TRB_CHAIN ? 'H' : 'h', flags & TRB_IOC ? 'I' : 'i'); break; case TRB_NORMAL: ret = scnprintf(str, size, "type: '%s', Buffer: %08x, length: %ld, burst len: %ld, " "flags %c:%c:%c%c:%c", cdns2_trb_type_string(type), buffer, TRB_LEN(length), TRB_FIELD_TO_BURST(length), flags & TRB_CYCLE ? 'C' : 'c', flags & TRB_ISP ? 'I' : 'i', flags & TRB_CHAIN ? 'C' : 'c', flags & TRB_CHAIN ? 'H' : 'h', flags & TRB_IOC ? 'I' : 'i'); break; default: ret = scnprintf(str, size, "type '%s' -> raw %08x %08x %08x", cdns2_trb_type_string(type), buffer, length, flags); } if (ret == size - 1) pr_info("CDNS2: buffer may be truncated.\n"); return str; } #endif /*__LINUX_CDNS2_DEBUG*/ |