Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0+
/*
 * Freescale QUICC Engine USB Host Controller Driver
 *
 * Copyright (c) Freescale Semicondutor, Inc. 2006.
 *               Shlomi Gridish <gridish@freescale.com>
 *               Jerry Huang <Chang-Ming.Huang@freescale.com>
 * Copyright (c) Logic Product Development, Inc. 2007
 *               Peter Barada <peterb@logicpd.com>
 * Copyright (c) MontaVista Software, Inc. 2008.
 *               Anton Vorontsov <avorontsov@ru.mvista.com>
 */
 
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include "fhci.h"
 
void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er)
{
<------>int i;
 
<------>if (usb_er == -1) {
<------><------>fhci->usb_irq_stat[12]++;
<------><------>return;
<------>}
 
<------>for (i = 0; i < 12; ++i) {
<------><------>if (usb_er & (1 << i))
<------><------><------>fhci->usb_irq_stat[i]++;
<------>}
}
 
static int fhci_dfs_regs_show(struct seq_file *s, void *v)
{
<------>struct fhci_hcd *fhci = s->private;
<------>struct qe_usb_ctlr __iomem *regs = fhci->regs;
 
<------>seq_printf(s,
<------><------>"mode: 0x%x\n" "addr: 0x%x\n"
<------><------>"command: 0x%x\n" "ep0: 0x%x\n"
<------><------>"event: 0x%x\n" "mask: 0x%x\n"
<------><------>"status: 0x%x\n" "SOF timer: %d\n"
<------><------>"frame number: %d\n"
<------><------>"lines status: 0x%x\n",
<------><------>in_8(&regs->usb_usmod), in_8(&regs->usb_usadr),
<------><------>in_8(&regs->usb_uscom), in_be16(&regs->usb_usep[0]),
<------><------>in_be16(&regs->usb_usber), in_be16(&regs->usb_usbmr),
<------><------>in_8(&regs->usb_usbs), in_be16(&regs->usb_ussft),
<------><------>in_be16(&regs->usb_usfrn),
<------><------>fhci_ioports_check_bus_state(fhci));
 
<------>return 0;
}
DEFINE_SHOW_ATTRIBUTE(fhci_dfs_regs);
 
static int fhci_dfs_irq_stat_show(struct seq_file *s, void *v)
{
<------>struct fhci_hcd *fhci = s->private;
<------>int *usb_irq_stat = fhci->usb_irq_stat;
 
<------>seq_printf(s,
<------><------>"RXB: %d\n" "TXB: %d\n" "BSY: %d\n"
<------><------>"SOF: %d\n" "TXE0: %d\n" "TXE1: %d\n"
<------><------>"TXE2: %d\n" "TXE3: %d\n" "IDLE: %d\n"
<------><------>"RESET: %d\n" "SFT: %d\n" "MSF: %d\n"
<------><------>"IDLE_ONLY: %d\n",
<------><------>usb_irq_stat[0], usb_irq_stat[1], usb_irq_stat[2],
<------><------>usb_irq_stat[3], usb_irq_stat[4], usb_irq_stat[5],
<------><------>usb_irq_stat[6], usb_irq_stat[7], usb_irq_stat[8],
<------><------>usb_irq_stat[9], usb_irq_stat[10], usb_irq_stat[11],
<------><------>usb_irq_stat[12]);
 
<------>return 0;
}
DEFINE_SHOW_ATTRIBUTE(fhci_dfs_irq_stat);
 
void fhci_dfs_create(struct fhci_hcd *fhci)
{
<------>struct device *dev = fhci_to_hcd(fhci)->self.controller;
 
<------>fhci->dfs_root = debugfs_create_dir(dev_name(dev), usb_debug_root);
 
<------>debugfs_create_file("regs", S_IFREG | S_IRUGO, fhci->dfs_root, fhci,
<------><------><------>    &fhci_dfs_regs_fops);
<------>debugfs_create_file("irq_stat", S_IFREG | S_IRUGO, fhci->dfs_root, fhci,
<------><------><------>    &fhci_dfs_irq_stat_fops);
}
 
void fhci_dfs_destroy(struct fhci_hcd *fhci)
{
<------>debugfs_remove_recursive(fhci->dfs_root);
}