fc4e404d58
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Cc: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Freescale QUICC Engine USB Host Controller Driver
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*
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* Copyright (c) Freescale Semicondutor, Inc. 2006.
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* Shlomi Gridish <gridish@freescale.com>
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* Jerry Huang <Chang-Ming.Huang@freescale.com>
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* Copyright (c) Logic Product Development, Inc. 2007
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* Peter Barada <peterb@logicpd.com>
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* Copyright (c) MontaVista Software, Inc. 2008.
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* Anton Vorontsov <avorontsov@ru.mvista.com>
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <linux/usb.h>
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#include <linux/usb/hcd.h>
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#include "fhci.h"
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void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er)
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{
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int i;
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if (usb_er == -1) {
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fhci->usb_irq_stat[12]++;
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return;
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}
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for (i = 0; i < 12; ++i) {
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if (usb_er & (1 << i))
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fhci->usb_irq_stat[i]++;
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}
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}
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static int fhci_dfs_regs_show(struct seq_file *s, void *v)
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{
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struct fhci_hcd *fhci = s->private;
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struct qe_usb_ctlr __iomem *regs = fhci->regs;
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seq_printf(s,
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"mode: 0x%x\n" "addr: 0x%x\n"
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"command: 0x%x\n" "ep0: 0x%x\n"
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"event: 0x%x\n" "mask: 0x%x\n"
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"status: 0x%x\n" "SOF timer: %d\n"
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"frame number: %d\n"
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"lines status: 0x%x\n",
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in_8(®s->usb_usmod), in_8(®s->usb_usadr),
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in_8(®s->usb_uscom), in_be16(®s->usb_usep[0]),
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in_be16(®s->usb_usber), in_be16(®s->usb_usbmr),
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in_8(®s->usb_usbs), in_be16(®s->usb_ussft),
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in_be16(®s->usb_usfrn),
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fhci_ioports_check_bus_state(fhci));
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return 0;
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}
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static int fhci_dfs_irq_stat_show(struct seq_file *s, void *v)
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{
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struct fhci_hcd *fhci = s->private;
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int *usb_irq_stat = fhci->usb_irq_stat;
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seq_printf(s,
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"RXB: %d\n" "TXB: %d\n" "BSY: %d\n"
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"SOF: %d\n" "TXE0: %d\n" "TXE1: %d\n"
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"TXE2: %d\n" "TXE3: %d\n" "IDLE: %d\n"
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"RESET: %d\n" "SFT: %d\n" "MSF: %d\n"
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"IDLE_ONLY: %d\n",
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usb_irq_stat[0], usb_irq_stat[1], usb_irq_stat[2],
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usb_irq_stat[3], usb_irq_stat[4], usb_irq_stat[5],
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usb_irq_stat[6], usb_irq_stat[7], usb_irq_stat[8],
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usb_irq_stat[9], usb_irq_stat[10], usb_irq_stat[11],
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usb_irq_stat[12]);
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return 0;
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}
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static int fhci_dfs_regs_open(struct inode *inode, struct file *file)
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{
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return single_open(file, fhci_dfs_regs_show, inode->i_private);
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}
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static int fhci_dfs_irq_stat_open(struct inode *inode, struct file *file)
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{
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return single_open(file, fhci_dfs_irq_stat_show, inode->i_private);
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}
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static const struct file_operations fhci_dfs_regs_fops = {
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.open = fhci_dfs_regs_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static const struct file_operations fhci_dfs_irq_stat_fops = {
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.open = fhci_dfs_irq_stat_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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void fhci_dfs_create(struct fhci_hcd *fhci)
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{
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struct device *dev = fhci_to_hcd(fhci)->self.controller;
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fhci->dfs_root = debugfs_create_dir(dev_name(dev), usb_debug_root);
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if (!fhci->dfs_root) {
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WARN_ON(1);
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return;
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}
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fhci->dfs_regs = debugfs_create_file("regs", S_IFREG | S_IRUGO,
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fhci->dfs_root, fhci, &fhci_dfs_regs_fops);
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fhci->dfs_irq_stat = debugfs_create_file("irq_stat",
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S_IFREG | S_IRUGO, fhci->dfs_root, fhci,
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&fhci_dfs_irq_stat_fops);
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WARN_ON(!fhci->dfs_regs || !fhci->dfs_irq_stat);
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}
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void fhci_dfs_destroy(struct fhci_hcd *fhci)
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{
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if (!fhci->dfs_root)
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return;
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debugfs_remove(fhci->dfs_irq_stat);
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debugfs_remove(fhci->dfs_regs);
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debugfs_remove(fhci->dfs_root);
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}
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