1// SPDX-License-Identifier: GPL-2.0+
 2/*
 3 * Freescale QUICC Engine USB Host Controller Driver
 4 *
 5 * Copyright (c) Freescale Semicondutor, Inc. 2006.
 6 *               Shlomi Gridish <gridish@freescale.com>
 7 *               Jerry Huang <Chang-Ming.Huang@freescale.com>
 8 * Copyright (c) Logic Product Development, Inc. 2007
 9 *               Peter Barada <peterb@logicpd.com>
10 * Copyright (c) MontaVista Software, Inc. 2008.
11 *               Anton Vorontsov <avorontsov@ru.mvista.com>
12 */
13
14#include <linux/kernel.h>
15#include <linux/errno.h>
16#include <linux/debugfs.h>
17#include <linux/seq_file.h>
18#include <linux/usb.h>
19#include <linux/usb/hcd.h>
20#include "fhci.h"
21
22void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er)
23{
24	int i;
25
26	if (usb_er == -1) {
27		fhci->usb_irq_stat[12]++;
28		return;
29	}
30
31	for (i = 0; i < 12; ++i) {
32		if (usb_er & (1 << i))
33			fhci->usb_irq_stat[i]++;
34	}
35}
36
37static int fhci_dfs_regs_show(struct seq_file *s, void *v)
38{
39	struct fhci_hcd *fhci = s->private;
40	struct qe_usb_ctlr __iomem *regs = fhci->regs;
41
42	seq_printf(s,
43		"mode: 0x%x\n" "addr: 0x%x\n"
44		"command: 0x%x\n" "ep0: 0x%x\n"
45		"event: 0x%x\n" "mask: 0x%x\n"
46		"status: 0x%x\n" "SOF timer: %d\n"
47		"frame number: %d\n"
48		"lines status: 0x%x\n",
49		in_8(&regs->usb_usmod), in_8(&regs->usb_usadr),
50		in_8(&regs->usb_uscom), in_be16(&regs->usb_usep[0]),
51		in_be16(&regs->usb_usber), in_be16(&regs->usb_usbmr),
52		in_8(&regs->usb_usbs), in_be16(&regs->usb_ussft),
53		in_be16(&regs->usb_usfrn),
54		fhci_ioports_check_bus_state(fhci));
55
56	return 0;
57}
58DEFINE_SHOW_ATTRIBUTE(fhci_dfs_regs);
59
60static int fhci_dfs_irq_stat_show(struct seq_file *s, void *v)
61{
62	struct fhci_hcd *fhci = s->private;
63	int *usb_irq_stat = fhci->usb_irq_stat;
64
65	seq_printf(s,
66		"RXB: %d\n" "TXB: %d\n" "BSY: %d\n"
67		"SOF: %d\n" "TXE0: %d\n" "TXE1: %d\n"
68		"TXE2: %d\n" "TXE3: %d\n" "IDLE: %d\n"
69		"RESET: %d\n" "SFT: %d\n" "MSF: %d\n"
70		"IDLE_ONLY: %d\n",
71		usb_irq_stat[0], usb_irq_stat[1], usb_irq_stat[2],
72		usb_irq_stat[3], usb_irq_stat[4], usb_irq_stat[5],
73		usb_irq_stat[6], usb_irq_stat[7], usb_irq_stat[8],
74		usb_irq_stat[9], usb_irq_stat[10], usb_irq_stat[11],
75		usb_irq_stat[12]);
76
77	return 0;
78}
79DEFINE_SHOW_ATTRIBUTE(fhci_dfs_irq_stat);
80
81void fhci_dfs_create(struct fhci_hcd *fhci)
82{
83	struct device *dev = fhci_to_hcd(fhci)->self.controller;
84
85	fhci->dfs_root = debugfs_create_dir(dev_name(dev), usb_debug_root);
86
87	debugfs_create_file("regs", S_IFREG | S_IRUGO, fhci->dfs_root, fhci,
88			    &fhci_dfs_regs_fops);
89	debugfs_create_file("irq_stat", S_IFREG | S_IRUGO, fhci->dfs_root, fhci,
90			    &fhci_dfs_irq_stat_fops);
91}
92
93void fhci_dfs_destroy(struct fhci_hcd *fhci)
94{
95	debugfs_remove_recursive(fhci->dfs_root);
96}

 1// SPDX-License-Identifier: GPL-2.0+
 2/*
 3 * Freescale QUICC Engine USB Host Controller Driver
 4 *
 5 * Copyright (c) Freescale Semicondutor, Inc. 2006.
 6 *               Shlomi Gridish <gridish@freescale.com>
 7 *               Jerry Huang <Chang-Ming.Huang@freescale.com>
 8 * Copyright (c) Logic Product Development, Inc. 2007
 9 *               Peter Barada <peterb@logicpd.com>
10 * Copyright (c) MontaVista Software, Inc. 2008.
11 *               Anton Vorontsov <avorontsov@ru.mvista.com>
12 */
13
14#include <linux/kernel.h>
15#include <linux/errno.h>
16#include <linux/debugfs.h>
17#include <linux/seq_file.h>
18#include <linux/usb.h>
19#include <linux/usb/hcd.h>
20#include "fhci.h"
21
22void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er)
23{
24	int i;
25
26	if (usb_er == -1) {
27		fhci->usb_irq_stat[12]++;
28		return;
29	}
30
31	for (i = 0; i < 12; ++i) {
32		if (usb_er & (1 << i))
33			fhci->usb_irq_stat[i]++;
34	}
35}
36
37static int fhci_dfs_regs_show(struct seq_file *s, void *v)
38{
39	struct fhci_hcd *fhci = s->private;
40	struct qe_usb_ctlr __iomem *regs = fhci->regs;
41
42	seq_printf(s,
43		"mode: 0x%x\n" "addr: 0x%x\n"
44		"command: 0x%x\n" "ep0: 0x%x\n"
45		"event: 0x%x\n" "mask: 0x%x\n"
46		"status: 0x%x\n" "SOF timer: %d\n"
47		"frame number: %d\n"
48		"lines status: 0x%x\n",
49		in_8(&regs->usb_usmod), in_8(&regs->usb_usadr),
50		in_8(&regs->usb_uscom), in_be16(&regs->usb_usep[0]),
51		in_be16(&regs->usb_usber), in_be16(&regs->usb_usbmr),
52		in_8(&regs->usb_usbs), in_be16(&regs->usb_ussft),
53		in_be16(&regs->usb_usfrn),
54		fhci_ioports_check_bus_state(fhci));
55
56	return 0;
57}
58DEFINE_SHOW_ATTRIBUTE(fhci_dfs_regs);
59
60static int fhci_dfs_irq_stat_show(struct seq_file *s, void *v)
61{
62	struct fhci_hcd *fhci = s->private;
63	int *usb_irq_stat = fhci->usb_irq_stat;
64
65	seq_printf(s,
66		"RXB: %d\n" "TXB: %d\n" "BSY: %d\n"
67		"SOF: %d\n" "TXE0: %d\n" "TXE1: %d\n"
68		"TXE2: %d\n" "TXE3: %d\n" "IDLE: %d\n"
69		"RESET: %d\n" "SFT: %d\n" "MSF: %d\n"
70		"IDLE_ONLY: %d\n",
71		usb_irq_stat[0], usb_irq_stat[1], usb_irq_stat[2],
72		usb_irq_stat[3], usb_irq_stat[4], usb_irq_stat[5],
73		usb_irq_stat[6], usb_irq_stat[7], usb_irq_stat[8],
74		usb_irq_stat[9], usb_irq_stat[10], usb_irq_stat[11],
75		usb_irq_stat[12]);
76
77	return 0;
78}
79DEFINE_SHOW_ATTRIBUTE(fhci_dfs_irq_stat);
80
81void fhci_dfs_create(struct fhci_hcd *fhci)
82{
83	struct device *dev = fhci_to_hcd(fhci)->self.controller;
84
85	fhci->dfs_root = debugfs_create_dir(dev_name(dev), usb_debug_root);
86
87	debugfs_create_file("regs", S_IFREG | S_IRUGO, fhci->dfs_root, fhci,
88			    &fhci_dfs_regs_fops);
89	debugfs_create_file("irq_stat", S_IFREG | S_IRUGO, fhci->dfs_root, fhci,
90			    &fhci_dfs_irq_stat_fops);
91}
92
93void fhci_dfs_destroy(struct fhci_hcd *fhci)
94{
95	debugfs_remove_recursive(fhci->dfs_root);
96}