drivers/usb/gadget/udc/bdc/bdc_dbg.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * bdc_dbg.c - BRCM BDC USB3.0 device controller debug functions
   4  *
   5  * Copyright (C) 2014 Broadcom Corporation
   6  *
   7  * Author: Ashwini Pahuja
   8  */
   9
  10 #include "bdc.h"
  11 #include "bdc_dbg.h"
  12
  13 void bdc_dbg_regs(struct bdc *bdc)
  14 {
  15         u32 temp;
  16
  17         dev_vdbg(bdc->dev, "bdc->regs:%p\n", bdc->regs);
  18         temp = bdc_readl(bdc->regs, BDC_BDCCFG0);
  19         dev_vdbg(bdc->dev, "bdccfg0:0x%08x\n", temp);
  20         temp = bdc_readl(bdc->regs, BDC_BDCCFG1);
  21         dev_vdbg(bdc->dev, "bdccfg1:0x%08x\n", temp);
  22         temp = bdc_readl(bdc->regs, BDC_BDCCAP0);
  23         dev_vdbg(bdc->dev, "bdccap0:0x%08x\n", temp);
  24         temp = bdc_readl(bdc->regs, BDC_BDCCAP1);
  25         dev_vdbg(bdc->dev, "bdccap1:0x%08x\n", temp);
  26         temp = bdc_readl(bdc->regs, BDC_USPC);
  27         dev_vdbg(bdc->dev, "uspc:0x%08x\n", temp);
  28         temp = bdc_readl(bdc->regs, BDC_DVCSA);
  29         dev_vdbg(bdc->dev, "dvcsa:0x%08x\n", temp);
  30         temp = bdc_readl(bdc->regs, BDC_DVCSB);
  31         dev_vdbg(bdc->dev, "dvcsb:0x%x08\n", temp);
  32 }
  33
  34 void bdc_dump_epsts(struct bdc *bdc)
  35 {
  36         u32 temp;
  37
  38         temp = bdc_readl(bdc->regs, BDC_EPSTS0);
  39         dev_vdbg(bdc->dev, "BDC_EPSTS0:0x%08x\n", temp);
  40
  41         temp = bdc_readl(bdc->regs, BDC_EPSTS1);
  42         dev_vdbg(bdc->dev, "BDC_EPSTS1:0x%x\n", temp);
  43
  44         temp = bdc_readl(bdc->regs, BDC_EPSTS2);
  45         dev_vdbg(bdc->dev, "BDC_EPSTS2:0x%08x\n", temp);
  46
  47         temp = bdc_readl(bdc->regs, BDC_EPSTS3);
  48         dev_vdbg(bdc->dev, "BDC_EPSTS3:0x%08x\n", temp);
  49
  50         temp = bdc_readl(bdc->regs, BDC_EPSTS4);
  51         dev_vdbg(bdc->dev, "BDC_EPSTS4:0x%08x\n", temp);
  52
  53         temp = bdc_readl(bdc->regs, BDC_EPSTS5);
  54         dev_vdbg(bdc->dev, "BDC_EPSTS5:0x%08x\n", temp);
  55
  56         temp = bdc_readl(bdc->regs, BDC_EPSTS6);
  57         dev_vdbg(bdc->dev, "BDC_EPSTS6:0x%08x\n", temp);
  58
  59         temp = bdc_readl(bdc->regs, BDC_EPSTS7);
  60         dev_vdbg(bdc->dev, "BDC_EPSTS7:0x%08x\n", temp);
  61 }
  62
  63 void bdc_dbg_srr(struct bdc *bdc, u32 srr_num)
  64 {
  65         struct bdc_sr *sr;
  66         dma_addr_t addr;
  67         int i;
  68
  69         sr = bdc->srr.sr_bds;
  70         addr = bdc->srr.dma_addr;
  71         dev_vdbg(bdc->dev, "bdc_dbg_srr sr:%p dqp_index:%d\n",
  72                                                 sr, bdc->srr.dqp_index);
  73         for (i = 0; i < NUM_SR_ENTRIES; i++) {
  74                 sr = &bdc->srr.sr_bds[i];
  75                 dev_vdbg(bdc->dev, "%llx %08x %08x %08x %08x\n",
  76                                         (unsigned long long)addr,
  77                                         le32_to_cpu(sr->offset[0]),
  78                                         le32_to_cpu(sr->offset[1]),
  79                                         le32_to_cpu(sr->offset[2]),
  80                                         le32_to_cpu(sr->offset[3]));
  81                 addr += sizeof(*sr);
  82         }
  83 }
  84
  85 void bdc_dbg_bd_list(struct bdc *bdc, struct bdc_ep *ep)
  86 {
  87         struct bd_list *bd_list = &ep->bd_list;
  88         struct bd_table *bd_table;
  89         struct bdc_bd *bd;
  90         int tbi, bdi, gbdi;
  91         dma_addr_t dma;
  92
  93         gbdi = 0;
  94         dev_vdbg(bdc->dev,
  95                 "Dump bd list for %s epnum:%d\n",
  96                 ep->name, ep->ep_num);
  97
  98         dev_vdbg(bdc->dev,
  99                 "tabs:%d max_bdi:%d eqp_bdi:%d hwd_bdi:%d num_bds_table:%d\n",
 100                 bd_list->num_tabs, bd_list->max_bdi, bd_list->eqp_bdi,
 101                 bd_list->hwd_bdi, bd_list->num_bds_table);
 102
 103         for (tbi = 0; tbi < bd_list->num_tabs; tbi++) {
 104                 bd_table = bd_list->bd_table_array[tbi];
 105                 for (bdi = 0; bdi < bd_list->num_bds_table; bdi++) {
 106                         bd =  bd_table->start_bd + bdi;
 107                         dma = bd_table->dma + (sizeof(struct bdc_bd) * bdi);
 108                         dev_vdbg(bdc->dev,
 109                                 "tbi:%2d bdi:%2d gbdi:%2d virt:%p phys:%llx %08x %08x %08x %08x\n",
 110                                 tbi, bdi, gbdi++, bd, (unsigned long long)dma,
 111                                 le32_to_cpu(bd->offset[0]),
 112                                 le32_to_cpu(bd->offset[1]),
 113                                 le32_to_cpu(bd->offset[2]),
 114                                 le32_to_cpu(bd->offset[3]));
 115                 }
 116                 dev_vdbg(bdc->dev, "\n\n");
 117         }
 118 }