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
 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, "%s sr:%p dqp_index:%d\n", __func__,
 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}