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

   1/*
   2 * bdc_dbg.c - BRCM BDC USB3.0 device controller debug functions
   3 *
   4 * Copyright (C) 2014 Broadcom Corporation
   5 *
   6 * Author: Ashwini Pahuja
   7 *
   8 * This program is free software; you can redistribute it and/or modify it
   9 * under the terms of the GNU General Public License as published by the
  10 * Free Software Foundation; either version 2 of the License, or (at your
  11 * option) any later version.
  12 *
  13 */
  14
  15#include "bdc.h"
  16#include "bdc_dbg.h"
  17
  18void bdc_dbg_regs(struct bdc *bdc)
  19{
  20        u32 temp;
  21
  22        dev_vdbg(bdc->dev, "bdc->regs:%p\n", bdc->regs);
  23        temp = bdc_readl(bdc->regs, BDC_BDCCFG0);
  24        dev_vdbg(bdc->dev, "bdccfg0:0x%08x\n", temp);
  25        temp = bdc_readl(bdc->regs, BDC_BDCCFG1);
  26        dev_vdbg(bdc->dev, "bdccfg1:0x%08x\n", temp);
  27        temp = bdc_readl(bdc->regs, BDC_BDCCAP0);
  28        dev_vdbg(bdc->dev, "bdccap0:0x%08x\n", temp);
  29        temp = bdc_readl(bdc->regs, BDC_BDCCAP1);
  30        dev_vdbg(bdc->dev, "bdccap1:0x%08x\n", temp);
  31        temp = bdc_readl(bdc->regs, BDC_USPC);
  32        dev_vdbg(bdc->dev, "uspc:0x%08x\n", temp);
  33        temp = bdc_readl(bdc->regs, BDC_DVCSA);
  34        dev_vdbg(bdc->dev, "dvcsa:0x%08x\n", temp);
  35        temp = bdc_readl(bdc->regs, BDC_DVCSB);
  36        dev_vdbg(bdc->dev, "dvcsb:0x%x08\n", temp);
  37}
  38
  39void bdc_dump_epsts(struct bdc *bdc)
  40{
  41        u32 temp;
  42
  43        temp = bdc_readl(bdc->regs, BDC_EPSTS0(0));
  44        dev_vdbg(bdc->dev, "BDC_EPSTS0:0x%08x\n", temp);
  45
  46        temp = bdc_readl(bdc->regs, BDC_EPSTS1(0));
  47        dev_vdbg(bdc->dev, "BDC_EPSTS1:0x%x\n", temp);
  48
  49        temp = bdc_readl(bdc->regs, BDC_EPSTS2(0));
  50        dev_vdbg(bdc->dev, "BDC_EPSTS2:0x%08x\n", temp);
  51
  52        temp = bdc_readl(bdc->regs, BDC_EPSTS3(0));
  53        dev_vdbg(bdc->dev, "BDC_EPSTS3:0x%08x\n", temp);
  54
  55        temp = bdc_readl(bdc->regs, BDC_EPSTS4(0));
  56        dev_vdbg(bdc->dev, "BDC_EPSTS4:0x%08x\n", temp);
  57
  58        temp = bdc_readl(bdc->regs, BDC_EPSTS5(0));
  59        dev_vdbg(bdc->dev, "BDC_EPSTS5:0x%08x\n", temp);
  60
  61        temp = bdc_readl(bdc->regs, BDC_EPSTS6(0));
  62        dev_vdbg(bdc->dev, "BDC_EPSTS6:0x%08x\n", temp);
  63
  64        temp = bdc_readl(bdc->regs, BDC_EPSTS7(0));
  65        dev_vdbg(bdc->dev, "BDC_EPSTS7:0x%08x\n", temp);
  66}
  67
  68void bdc_dbg_srr(struct bdc *bdc, u32 srr_num)
  69{
  70        struct bdc_sr *sr;
  71        dma_addr_t addr;
  72        int i;
  73
  74        sr = bdc->srr.sr_bds;
  75        addr = bdc->srr.dma_addr;
  76        dev_vdbg(bdc->dev, "bdc_dbg_srr sr:%p dqp_index:%d\n",
  77                                                sr, bdc->srr.dqp_index);
  78        for (i = 0; i < NUM_SR_ENTRIES; i++) {
  79                sr = &bdc->srr.sr_bds[i];
  80                dev_vdbg(bdc->dev, "%llx %08x %08x %08x %08x\n",
  81                                        (unsigned long long)addr,
  82                                        le32_to_cpu(sr->offset[0]),
  83                                        le32_to_cpu(sr->offset[1]),
  84                                        le32_to_cpu(sr->offset[2]),
  85                                        le32_to_cpu(sr->offset[3]));
  86                addr += sizeof(*sr);
  87        }
  88}
  89
  90void bdc_dbg_bd_list(struct bdc *bdc, struct bdc_ep *ep)
  91{
  92        struct bd_list *bd_list = &ep->bd_list;
  93        struct bd_table *bd_table;
  94        struct bdc_bd *bd;
  95        int tbi, bdi, gbdi;
  96        dma_addr_t dma;
  97
  98        gbdi = 0;
  99        dev_vdbg(bdc->dev,
 100                "Dump bd list for %s epnum:%d\n",
 101                ep->name, ep->ep_num);
 102
 103        dev_vdbg(bdc->dev,
 104                "tabs:%d max_bdi:%d eqp_bdi:%d hwd_bdi:%d num_bds_table:%d\n",
 105                bd_list->num_tabs, bd_list->max_bdi, bd_list->eqp_bdi,
 106                bd_list->hwd_bdi, bd_list->num_bds_table);
 107
 108        for (tbi = 0; tbi < bd_list->num_tabs; tbi++) {
 109                bd_table = bd_list->bd_table_array[tbi];
 110                for (bdi = 0; bdi < bd_list->num_bds_table; bdi++) {
 111                        bd =  bd_table->start_bd + bdi;
 112                        dma = bd_table->dma + (sizeof(struct bdc_bd) * bdi);
 113                        dev_vdbg(bdc->dev,
 114                                "tbi:%2d bdi:%2d gbdi:%2d virt:%p phys:%llx %08x %08x %08x %08x\n",
 115                                tbi, bdi, gbdi++, bd, (unsigned long long)dma,
 116                                le32_to_cpu(bd->offset[0]),
 117                                le32_to_cpu(bd->offset[1]),
 118                                le32_to_cpu(bd->offset[2]),
 119                                le32_to_cpu(bd->offset[3]));
 120                }
 121                dev_vdbg(bdc->dev, "\n\n");
 122        }
 123}
 124