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

   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
  18 void 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
  39 void 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
  68 void 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
  90 void 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 }