LXR linux/drivers/usb/gadget/udc/bdc/bdc

   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
  13void 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
  34void 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
  63void 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
  85void 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}
 119