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}
119