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236dd4d1 AV |
1 | /* |
2 | * Freescale QUICC Engine USB Host Controller Driver | |
3 | * | |
4 | * Copyright (c) Freescale Semicondutor, Inc. 2006. | |
5 | * Shlomi Gridish <gridish@freescale.com> | |
6 | * Jerry Huang <Chang-Ming.Huang@freescale.com> | |
7 | * Copyright (c) Logic Product Development, Inc. 2007 | |
8 | * Peter Barada <peterb@logicpd.com> | |
9 | * Copyright (c) MontaVista Software, Inc. 2008. | |
10 | * Anton Vorontsov <avorontsov@ru.mvista.com> | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License as published by the | |
14 | * Free Software Foundation; either version 2 of the License, or (at your | |
15 | * option) any later version. | |
16 | */ | |
17 | ||
18 | #include <linux/kernel.h> | |
19 | #include <linux/errno.h> | |
20 | #include <linux/debugfs.h> | |
21 | #include <linux/seq_file.h> | |
22 | #include <linux/usb.h> | |
27729aad | 23 | #include <linux/usb/hcd.h> |
236dd4d1 AV |
24 | #include "fhci.h" |
25 | ||
26 | void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er) | |
27 | { | |
28 | int i; | |
29 | ||
30 | if (usb_er == -1) { | |
31 | fhci->usb_irq_stat[12]++; | |
32 | return; | |
33 | } | |
34 | ||
35 | for (i = 0; i < 12; ++i) { | |
36 | if (usb_er & (1 << i)) | |
37 | fhci->usb_irq_stat[i]++; | |
38 | } | |
39 | } | |
40 | ||
41 | static int fhci_dfs_regs_show(struct seq_file *s, void *v) | |
42 | { | |
43 | struct fhci_hcd *fhci = s->private; | |
cf61fdb9 | 44 | struct qe_usb_ctlr __iomem *regs = fhci->regs; |
236dd4d1 AV |
45 | |
46 | seq_printf(s, | |
47 | "mode: 0x%x\n" "addr: 0x%x\n" | |
48 | "command: 0x%x\n" "ep0: 0x%x\n" | |
49 | "event: 0x%x\n" "mask: 0x%x\n" | |
50 | "status: 0x%x\n" "SOF timer: %d\n" | |
51 | "frame number: %d\n" | |
52 | "lines status: 0x%x\n", | |
cf61fdb9 GMF |
53 | in_8(®s->usb_usmod), in_8(®s->usb_usadr), |
54 | in_8(®s->usb_uscom), in_be16(®s->usb_usep[0]), | |
55 | in_be16(®s->usb_usber), in_be16(®s->usb_usbmr), | |
56 | in_8(®s->usb_usbs), in_be16(®s->usb_ussft), | |
57 | in_be16(®s->usb_usfrn), | |
236dd4d1 AV |
58 | fhci_ioports_check_bus_state(fhci)); |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
63 | static int fhci_dfs_irq_stat_show(struct seq_file *s, void *v) | |
64 | { | |
65 | struct fhci_hcd *fhci = s->private; | |
66 | int *usb_irq_stat = fhci->usb_irq_stat; | |
67 | ||
68 | seq_printf(s, | |
69 | "RXB: %d\n" "TXB: %d\n" "BSY: %d\n" | |
70 | "SOF: %d\n" "TXE0: %d\n" "TXE1: %d\n" | |
71 | "TXE2: %d\n" "TXE3: %d\n" "IDLE: %d\n" | |
72 | "RESET: %d\n" "SFT: %d\n" "MSF: %d\n" | |
73 | "IDLE_ONLY: %d\n", | |
74 | usb_irq_stat[0], usb_irq_stat[1], usb_irq_stat[2], | |
75 | usb_irq_stat[3], usb_irq_stat[4], usb_irq_stat[5], | |
76 | usb_irq_stat[6], usb_irq_stat[7], usb_irq_stat[8], | |
77 | usb_irq_stat[9], usb_irq_stat[10], usb_irq_stat[11], | |
78 | usb_irq_stat[12]); | |
79 | ||
80 | return 0; | |
81 | } | |
82 | ||
83 | static int fhci_dfs_regs_open(struct inode *inode, struct file *file) | |
84 | { | |
85 | return single_open(file, fhci_dfs_regs_show, inode->i_private); | |
86 | } | |
87 | ||
88 | static int fhci_dfs_irq_stat_open(struct inode *inode, struct file *file) | |
89 | { | |
90 | return single_open(file, fhci_dfs_irq_stat_show, inode->i_private); | |
91 | } | |
92 | ||
93 | static const struct file_operations fhci_dfs_regs_fops = { | |
94 | .open = fhci_dfs_regs_open, | |
95 | .read = seq_read, | |
96 | .llseek = seq_lseek, | |
97 | .release = single_release, | |
98 | }; | |
99 | ||
100 | static const struct file_operations fhci_dfs_irq_stat_fops = { | |
101 | .open = fhci_dfs_irq_stat_open, | |
102 | .read = seq_read, | |
103 | .llseek = seq_lseek, | |
104 | .release = single_release, | |
105 | }; | |
106 | ||
107 | void fhci_dfs_create(struct fhci_hcd *fhci) | |
108 | { | |
109 | struct device *dev = fhci_to_hcd(fhci)->self.controller; | |
110 | ||
66536ab3 | 111 | fhci->dfs_root = debugfs_create_dir(dev_name(dev), usb_debug_root); |
236dd4d1 AV |
112 | if (!fhci->dfs_root) { |
113 | WARN_ON(1); | |
114 | return; | |
115 | } | |
116 | ||
117 | fhci->dfs_regs = debugfs_create_file("regs", S_IFREG | S_IRUGO, | |
118 | fhci->dfs_root, fhci, &fhci_dfs_regs_fops); | |
119 | ||
120 | fhci->dfs_irq_stat = debugfs_create_file("irq_stat", | |
121 | S_IFREG | S_IRUGO, fhci->dfs_root, fhci, | |
122 | &fhci_dfs_irq_stat_fops); | |
123 | ||
124 | WARN_ON(!fhci->dfs_regs || !fhci->dfs_irq_stat); | |
125 | } | |
126 | ||
127 | void fhci_dfs_destroy(struct fhci_hcd *fhci) | |
128 | { | |
129 | if (!fhci->dfs_root) | |
130 | return; | |
131 | ||
64024d9f FF |
132 | debugfs_remove(fhci->dfs_irq_stat); |
133 | debugfs_remove(fhci->dfs_regs); | |
236dd4d1 AV |
134 | debugfs_remove(fhci->dfs_root); |
135 | } |