![Du, Changbin](/assets/img/avatar_default.png)
dwc->regset is allocated on dwc3_debugfs_init, and should be released on init failure or dwc3_debugfs_exit. Btw, The line "dwc->root = NULL" is unnecessary, so remove it. Signed-off-by: Du, Changbin <changbin.du@intel.com> [ felipe.balbi@linux.intel.com : add another err label for the new error condition ] Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
694 lines
18 KiB
C
694 lines
18 KiB
C
/**
|
|
* debugfs.c - DesignWare USB3 DRD Controller DebugFS file
|
|
*
|
|
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
|
|
*
|
|
* Authors: Felipe Balbi <balbi@ti.com>,
|
|
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 of
|
|
* the License as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/types.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/debugfs.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
#include <linux/usb/ch9.h>
|
|
|
|
#include "core.h"
|
|
#include "gadget.h"
|
|
#include "io.h"
|
|
#include "debug.h"
|
|
|
|
#define dump_register(nm) \
|
|
{ \
|
|
.name = __stringify(nm), \
|
|
.offset = DWC3_ ##nm - DWC3_GLOBALS_REGS_START, \
|
|
}
|
|
|
|
static const struct debugfs_reg32 dwc3_regs[] = {
|
|
dump_register(GSBUSCFG0),
|
|
dump_register(GSBUSCFG1),
|
|
dump_register(GTXTHRCFG),
|
|
dump_register(GRXTHRCFG),
|
|
dump_register(GCTL),
|
|
dump_register(GEVTEN),
|
|
dump_register(GSTS),
|
|
dump_register(GSNPSID),
|
|
dump_register(GGPIO),
|
|
dump_register(GUID),
|
|
dump_register(GUCTL),
|
|
dump_register(GBUSERRADDR0),
|
|
dump_register(GBUSERRADDR1),
|
|
dump_register(GPRTBIMAP0),
|
|
dump_register(GPRTBIMAP1),
|
|
dump_register(GHWPARAMS0),
|
|
dump_register(GHWPARAMS1),
|
|
dump_register(GHWPARAMS2),
|
|
dump_register(GHWPARAMS3),
|
|
dump_register(GHWPARAMS4),
|
|
dump_register(GHWPARAMS5),
|
|
dump_register(GHWPARAMS6),
|
|
dump_register(GHWPARAMS7),
|
|
dump_register(GDBGFIFOSPACE),
|
|
dump_register(GDBGLTSSM),
|
|
dump_register(GPRTBIMAP_HS0),
|
|
dump_register(GPRTBIMAP_HS1),
|
|
dump_register(GPRTBIMAP_FS0),
|
|
dump_register(GPRTBIMAP_FS1),
|
|
|
|
dump_register(GUSB2PHYCFG(0)),
|
|
dump_register(GUSB2PHYCFG(1)),
|
|
dump_register(GUSB2PHYCFG(2)),
|
|
dump_register(GUSB2PHYCFG(3)),
|
|
dump_register(GUSB2PHYCFG(4)),
|
|
dump_register(GUSB2PHYCFG(5)),
|
|
dump_register(GUSB2PHYCFG(6)),
|
|
dump_register(GUSB2PHYCFG(7)),
|
|
dump_register(GUSB2PHYCFG(8)),
|
|
dump_register(GUSB2PHYCFG(9)),
|
|
dump_register(GUSB2PHYCFG(10)),
|
|
dump_register(GUSB2PHYCFG(11)),
|
|
dump_register(GUSB2PHYCFG(12)),
|
|
dump_register(GUSB2PHYCFG(13)),
|
|
dump_register(GUSB2PHYCFG(14)),
|
|
dump_register(GUSB2PHYCFG(15)),
|
|
|
|
dump_register(GUSB2I2CCTL(0)),
|
|
dump_register(GUSB2I2CCTL(1)),
|
|
dump_register(GUSB2I2CCTL(2)),
|
|
dump_register(GUSB2I2CCTL(3)),
|
|
dump_register(GUSB2I2CCTL(4)),
|
|
dump_register(GUSB2I2CCTL(5)),
|
|
dump_register(GUSB2I2CCTL(6)),
|
|
dump_register(GUSB2I2CCTL(7)),
|
|
dump_register(GUSB2I2CCTL(8)),
|
|
dump_register(GUSB2I2CCTL(9)),
|
|
dump_register(GUSB2I2CCTL(10)),
|
|
dump_register(GUSB2I2CCTL(11)),
|
|
dump_register(GUSB2I2CCTL(12)),
|
|
dump_register(GUSB2I2CCTL(13)),
|
|
dump_register(GUSB2I2CCTL(14)),
|
|
dump_register(GUSB2I2CCTL(15)),
|
|
|
|
dump_register(GUSB2PHYACC(0)),
|
|
dump_register(GUSB2PHYACC(1)),
|
|
dump_register(GUSB2PHYACC(2)),
|
|
dump_register(GUSB2PHYACC(3)),
|
|
dump_register(GUSB2PHYACC(4)),
|
|
dump_register(GUSB2PHYACC(5)),
|
|
dump_register(GUSB2PHYACC(6)),
|
|
dump_register(GUSB2PHYACC(7)),
|
|
dump_register(GUSB2PHYACC(8)),
|
|
dump_register(GUSB2PHYACC(9)),
|
|
dump_register(GUSB2PHYACC(10)),
|
|
dump_register(GUSB2PHYACC(11)),
|
|
dump_register(GUSB2PHYACC(12)),
|
|
dump_register(GUSB2PHYACC(13)),
|
|
dump_register(GUSB2PHYACC(14)),
|
|
dump_register(GUSB2PHYACC(15)),
|
|
|
|
dump_register(GUSB3PIPECTL(0)),
|
|
dump_register(GUSB3PIPECTL(1)),
|
|
dump_register(GUSB3PIPECTL(2)),
|
|
dump_register(GUSB3PIPECTL(3)),
|
|
dump_register(GUSB3PIPECTL(4)),
|
|
dump_register(GUSB3PIPECTL(5)),
|
|
dump_register(GUSB3PIPECTL(6)),
|
|
dump_register(GUSB3PIPECTL(7)),
|
|
dump_register(GUSB3PIPECTL(8)),
|
|
dump_register(GUSB3PIPECTL(9)),
|
|
dump_register(GUSB3PIPECTL(10)),
|
|
dump_register(GUSB3PIPECTL(11)),
|
|
dump_register(GUSB3PIPECTL(12)),
|
|
dump_register(GUSB3PIPECTL(13)),
|
|
dump_register(GUSB3PIPECTL(14)),
|
|
dump_register(GUSB3PIPECTL(15)),
|
|
|
|
dump_register(GTXFIFOSIZ(0)),
|
|
dump_register(GTXFIFOSIZ(1)),
|
|
dump_register(GTXFIFOSIZ(2)),
|
|
dump_register(GTXFIFOSIZ(3)),
|
|
dump_register(GTXFIFOSIZ(4)),
|
|
dump_register(GTXFIFOSIZ(5)),
|
|
dump_register(GTXFIFOSIZ(6)),
|
|
dump_register(GTXFIFOSIZ(7)),
|
|
dump_register(GTXFIFOSIZ(8)),
|
|
dump_register(GTXFIFOSIZ(9)),
|
|
dump_register(GTXFIFOSIZ(10)),
|
|
dump_register(GTXFIFOSIZ(11)),
|
|
dump_register(GTXFIFOSIZ(12)),
|
|
dump_register(GTXFIFOSIZ(13)),
|
|
dump_register(GTXFIFOSIZ(14)),
|
|
dump_register(GTXFIFOSIZ(15)),
|
|
dump_register(GTXFIFOSIZ(16)),
|
|
dump_register(GTXFIFOSIZ(17)),
|
|
dump_register(GTXFIFOSIZ(18)),
|
|
dump_register(GTXFIFOSIZ(19)),
|
|
dump_register(GTXFIFOSIZ(20)),
|
|
dump_register(GTXFIFOSIZ(21)),
|
|
dump_register(GTXFIFOSIZ(22)),
|
|
dump_register(GTXFIFOSIZ(23)),
|
|
dump_register(GTXFIFOSIZ(24)),
|
|
dump_register(GTXFIFOSIZ(25)),
|
|
dump_register(GTXFIFOSIZ(26)),
|
|
dump_register(GTXFIFOSIZ(27)),
|
|
dump_register(GTXFIFOSIZ(28)),
|
|
dump_register(GTXFIFOSIZ(29)),
|
|
dump_register(GTXFIFOSIZ(30)),
|
|
dump_register(GTXFIFOSIZ(31)),
|
|
|
|
dump_register(GRXFIFOSIZ(0)),
|
|
dump_register(GRXFIFOSIZ(1)),
|
|
dump_register(GRXFIFOSIZ(2)),
|
|
dump_register(GRXFIFOSIZ(3)),
|
|
dump_register(GRXFIFOSIZ(4)),
|
|
dump_register(GRXFIFOSIZ(5)),
|
|
dump_register(GRXFIFOSIZ(6)),
|
|
dump_register(GRXFIFOSIZ(7)),
|
|
dump_register(GRXFIFOSIZ(8)),
|
|
dump_register(GRXFIFOSIZ(9)),
|
|
dump_register(GRXFIFOSIZ(10)),
|
|
dump_register(GRXFIFOSIZ(11)),
|
|
dump_register(GRXFIFOSIZ(12)),
|
|
dump_register(GRXFIFOSIZ(13)),
|
|
dump_register(GRXFIFOSIZ(14)),
|
|
dump_register(GRXFIFOSIZ(15)),
|
|
dump_register(GRXFIFOSIZ(16)),
|
|
dump_register(GRXFIFOSIZ(17)),
|
|
dump_register(GRXFIFOSIZ(18)),
|
|
dump_register(GRXFIFOSIZ(19)),
|
|
dump_register(GRXFIFOSIZ(20)),
|
|
dump_register(GRXFIFOSIZ(21)),
|
|
dump_register(GRXFIFOSIZ(22)),
|
|
dump_register(GRXFIFOSIZ(23)),
|
|
dump_register(GRXFIFOSIZ(24)),
|
|
dump_register(GRXFIFOSIZ(25)),
|
|
dump_register(GRXFIFOSIZ(26)),
|
|
dump_register(GRXFIFOSIZ(27)),
|
|
dump_register(GRXFIFOSIZ(28)),
|
|
dump_register(GRXFIFOSIZ(29)),
|
|
dump_register(GRXFIFOSIZ(30)),
|
|
dump_register(GRXFIFOSIZ(31)),
|
|
|
|
dump_register(GEVNTADRLO(0)),
|
|
dump_register(GEVNTADRHI(0)),
|
|
dump_register(GEVNTSIZ(0)),
|
|
dump_register(GEVNTCOUNT(0)),
|
|
|
|
dump_register(GHWPARAMS8),
|
|
dump_register(DCFG),
|
|
dump_register(DCTL),
|
|
dump_register(DEVTEN),
|
|
dump_register(DSTS),
|
|
dump_register(DGCMDPAR),
|
|
dump_register(DGCMD),
|
|
dump_register(DALEPENA),
|
|
|
|
dump_register(DEPCMDPAR2(0)),
|
|
dump_register(DEPCMDPAR2(1)),
|
|
dump_register(DEPCMDPAR2(2)),
|
|
dump_register(DEPCMDPAR2(3)),
|
|
dump_register(DEPCMDPAR2(4)),
|
|
dump_register(DEPCMDPAR2(5)),
|
|
dump_register(DEPCMDPAR2(6)),
|
|
dump_register(DEPCMDPAR2(7)),
|
|
dump_register(DEPCMDPAR2(8)),
|
|
dump_register(DEPCMDPAR2(9)),
|
|
dump_register(DEPCMDPAR2(10)),
|
|
dump_register(DEPCMDPAR2(11)),
|
|
dump_register(DEPCMDPAR2(12)),
|
|
dump_register(DEPCMDPAR2(13)),
|
|
dump_register(DEPCMDPAR2(14)),
|
|
dump_register(DEPCMDPAR2(15)),
|
|
dump_register(DEPCMDPAR2(16)),
|
|
dump_register(DEPCMDPAR2(17)),
|
|
dump_register(DEPCMDPAR2(18)),
|
|
dump_register(DEPCMDPAR2(19)),
|
|
dump_register(DEPCMDPAR2(20)),
|
|
dump_register(DEPCMDPAR2(21)),
|
|
dump_register(DEPCMDPAR2(22)),
|
|
dump_register(DEPCMDPAR2(23)),
|
|
dump_register(DEPCMDPAR2(24)),
|
|
dump_register(DEPCMDPAR2(25)),
|
|
dump_register(DEPCMDPAR2(26)),
|
|
dump_register(DEPCMDPAR2(27)),
|
|
dump_register(DEPCMDPAR2(28)),
|
|
dump_register(DEPCMDPAR2(29)),
|
|
dump_register(DEPCMDPAR2(30)),
|
|
dump_register(DEPCMDPAR2(31)),
|
|
|
|
dump_register(DEPCMDPAR1(0)),
|
|
dump_register(DEPCMDPAR1(1)),
|
|
dump_register(DEPCMDPAR1(2)),
|
|
dump_register(DEPCMDPAR1(3)),
|
|
dump_register(DEPCMDPAR1(4)),
|
|
dump_register(DEPCMDPAR1(5)),
|
|
dump_register(DEPCMDPAR1(6)),
|
|
dump_register(DEPCMDPAR1(7)),
|
|
dump_register(DEPCMDPAR1(8)),
|
|
dump_register(DEPCMDPAR1(9)),
|
|
dump_register(DEPCMDPAR1(10)),
|
|
dump_register(DEPCMDPAR1(11)),
|
|
dump_register(DEPCMDPAR1(12)),
|
|
dump_register(DEPCMDPAR1(13)),
|
|
dump_register(DEPCMDPAR1(14)),
|
|
dump_register(DEPCMDPAR1(15)),
|
|
dump_register(DEPCMDPAR1(16)),
|
|
dump_register(DEPCMDPAR1(17)),
|
|
dump_register(DEPCMDPAR1(18)),
|
|
dump_register(DEPCMDPAR1(19)),
|
|
dump_register(DEPCMDPAR1(20)),
|
|
dump_register(DEPCMDPAR1(21)),
|
|
dump_register(DEPCMDPAR1(22)),
|
|
dump_register(DEPCMDPAR1(23)),
|
|
dump_register(DEPCMDPAR1(24)),
|
|
dump_register(DEPCMDPAR1(25)),
|
|
dump_register(DEPCMDPAR1(26)),
|
|
dump_register(DEPCMDPAR1(27)),
|
|
dump_register(DEPCMDPAR1(28)),
|
|
dump_register(DEPCMDPAR1(29)),
|
|
dump_register(DEPCMDPAR1(30)),
|
|
dump_register(DEPCMDPAR1(31)),
|
|
|
|
dump_register(DEPCMDPAR0(0)),
|
|
dump_register(DEPCMDPAR0(1)),
|
|
dump_register(DEPCMDPAR0(2)),
|
|
dump_register(DEPCMDPAR0(3)),
|
|
dump_register(DEPCMDPAR0(4)),
|
|
dump_register(DEPCMDPAR0(5)),
|
|
dump_register(DEPCMDPAR0(6)),
|
|
dump_register(DEPCMDPAR0(7)),
|
|
dump_register(DEPCMDPAR0(8)),
|
|
dump_register(DEPCMDPAR0(9)),
|
|
dump_register(DEPCMDPAR0(10)),
|
|
dump_register(DEPCMDPAR0(11)),
|
|
dump_register(DEPCMDPAR0(12)),
|
|
dump_register(DEPCMDPAR0(13)),
|
|
dump_register(DEPCMDPAR0(14)),
|
|
dump_register(DEPCMDPAR0(15)),
|
|
dump_register(DEPCMDPAR0(16)),
|
|
dump_register(DEPCMDPAR0(17)),
|
|
dump_register(DEPCMDPAR0(18)),
|
|
dump_register(DEPCMDPAR0(19)),
|
|
dump_register(DEPCMDPAR0(20)),
|
|
dump_register(DEPCMDPAR0(21)),
|
|
dump_register(DEPCMDPAR0(22)),
|
|
dump_register(DEPCMDPAR0(23)),
|
|
dump_register(DEPCMDPAR0(24)),
|
|
dump_register(DEPCMDPAR0(25)),
|
|
dump_register(DEPCMDPAR0(26)),
|
|
dump_register(DEPCMDPAR0(27)),
|
|
dump_register(DEPCMDPAR0(28)),
|
|
dump_register(DEPCMDPAR0(29)),
|
|
dump_register(DEPCMDPAR0(30)),
|
|
dump_register(DEPCMDPAR0(31)),
|
|
|
|
dump_register(DEPCMD(0)),
|
|
dump_register(DEPCMD(1)),
|
|
dump_register(DEPCMD(2)),
|
|
dump_register(DEPCMD(3)),
|
|
dump_register(DEPCMD(4)),
|
|
dump_register(DEPCMD(5)),
|
|
dump_register(DEPCMD(6)),
|
|
dump_register(DEPCMD(7)),
|
|
dump_register(DEPCMD(8)),
|
|
dump_register(DEPCMD(9)),
|
|
dump_register(DEPCMD(10)),
|
|
dump_register(DEPCMD(11)),
|
|
dump_register(DEPCMD(12)),
|
|
dump_register(DEPCMD(13)),
|
|
dump_register(DEPCMD(14)),
|
|
dump_register(DEPCMD(15)),
|
|
dump_register(DEPCMD(16)),
|
|
dump_register(DEPCMD(17)),
|
|
dump_register(DEPCMD(18)),
|
|
dump_register(DEPCMD(19)),
|
|
dump_register(DEPCMD(20)),
|
|
dump_register(DEPCMD(21)),
|
|
dump_register(DEPCMD(22)),
|
|
dump_register(DEPCMD(23)),
|
|
dump_register(DEPCMD(24)),
|
|
dump_register(DEPCMD(25)),
|
|
dump_register(DEPCMD(26)),
|
|
dump_register(DEPCMD(27)),
|
|
dump_register(DEPCMD(28)),
|
|
dump_register(DEPCMD(29)),
|
|
dump_register(DEPCMD(30)),
|
|
dump_register(DEPCMD(31)),
|
|
|
|
dump_register(OCFG),
|
|
dump_register(OCTL),
|
|
dump_register(OEVT),
|
|
dump_register(OEVTEN),
|
|
dump_register(OSTS),
|
|
};
|
|
|
|
static int dwc3_mode_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3 *dwc = s->private;
|
|
unsigned long flags;
|
|
u32 reg;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
reg = dwc3_readl(dwc->regs, DWC3_GCTL);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
switch (DWC3_GCTL_PRTCAP(reg)) {
|
|
case DWC3_GCTL_PRTCAP_HOST:
|
|
seq_printf(s, "host\n");
|
|
break;
|
|
case DWC3_GCTL_PRTCAP_DEVICE:
|
|
seq_printf(s, "device\n");
|
|
break;
|
|
case DWC3_GCTL_PRTCAP_OTG:
|
|
seq_printf(s, "OTG\n");
|
|
break;
|
|
default:
|
|
seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_mode_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, dwc3_mode_show, inode->i_private);
|
|
}
|
|
|
|
static ssize_t dwc3_mode_write(struct file *file,
|
|
const char __user *ubuf, size_t count, loff_t *ppos)
|
|
{
|
|
struct seq_file *s = file->private_data;
|
|
struct dwc3 *dwc = s->private;
|
|
unsigned long flags;
|
|
u32 mode = 0;
|
|
char buf[32];
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
if (!strncmp(buf, "host", 4))
|
|
mode |= DWC3_GCTL_PRTCAP_HOST;
|
|
|
|
if (!strncmp(buf, "device", 6))
|
|
mode |= DWC3_GCTL_PRTCAP_DEVICE;
|
|
|
|
if (!strncmp(buf, "otg", 3))
|
|
mode |= DWC3_GCTL_PRTCAP_OTG;
|
|
|
|
if (mode) {
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
dwc3_set_mode(dwc, mode);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations dwc3_mode_fops = {
|
|
.open = dwc3_mode_open,
|
|
.write = dwc3_mode_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int dwc3_testmode_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3 *dwc = s->private;
|
|
unsigned long flags;
|
|
u32 reg;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
|
|
reg &= DWC3_DCTL_TSTCTRL_MASK;
|
|
reg >>= 1;
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
switch (reg) {
|
|
case 0:
|
|
seq_printf(s, "no test\n");
|
|
break;
|
|
case TEST_J:
|
|
seq_printf(s, "test_j\n");
|
|
break;
|
|
case TEST_K:
|
|
seq_printf(s, "test_k\n");
|
|
break;
|
|
case TEST_SE0_NAK:
|
|
seq_printf(s, "test_se0_nak\n");
|
|
break;
|
|
case TEST_PACKET:
|
|
seq_printf(s, "test_packet\n");
|
|
break;
|
|
case TEST_FORCE_EN:
|
|
seq_printf(s, "test_force_enable\n");
|
|
break;
|
|
default:
|
|
seq_printf(s, "UNKNOWN %d\n", reg);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_testmode_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, dwc3_testmode_show, inode->i_private);
|
|
}
|
|
|
|
static ssize_t dwc3_testmode_write(struct file *file,
|
|
const char __user *ubuf, size_t count, loff_t *ppos)
|
|
{
|
|
struct seq_file *s = file->private_data;
|
|
struct dwc3 *dwc = s->private;
|
|
unsigned long flags;
|
|
u32 testmode = 0;
|
|
char buf[32];
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
if (!strncmp(buf, "test_j", 6))
|
|
testmode = TEST_J;
|
|
else if (!strncmp(buf, "test_k", 6))
|
|
testmode = TEST_K;
|
|
else if (!strncmp(buf, "test_se0_nak", 12))
|
|
testmode = TEST_SE0_NAK;
|
|
else if (!strncmp(buf, "test_packet", 11))
|
|
testmode = TEST_PACKET;
|
|
else if (!strncmp(buf, "test_force_enable", 17))
|
|
testmode = TEST_FORCE_EN;
|
|
else
|
|
testmode = 0;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
dwc3_gadget_set_test_mode(dwc, testmode);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations dwc3_testmode_fops = {
|
|
.open = dwc3_testmode_open,
|
|
.write = dwc3_testmode_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int dwc3_link_state_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3 *dwc = s->private;
|
|
unsigned long flags;
|
|
enum dwc3_link_state state;
|
|
u32 reg;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
reg = dwc3_readl(dwc->regs, DWC3_DSTS);
|
|
state = DWC3_DSTS_USBLNKST(reg);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
switch (state) {
|
|
case DWC3_LINK_STATE_U0:
|
|
seq_printf(s, "U0\n");
|
|
break;
|
|
case DWC3_LINK_STATE_U1:
|
|
seq_printf(s, "U1\n");
|
|
break;
|
|
case DWC3_LINK_STATE_U2:
|
|
seq_printf(s, "U2\n");
|
|
break;
|
|
case DWC3_LINK_STATE_U3:
|
|
seq_printf(s, "U3\n");
|
|
break;
|
|
case DWC3_LINK_STATE_SS_DIS:
|
|
seq_printf(s, "SS.Disabled\n");
|
|
break;
|
|
case DWC3_LINK_STATE_RX_DET:
|
|
seq_printf(s, "Rx.Detect\n");
|
|
break;
|
|
case DWC3_LINK_STATE_SS_INACT:
|
|
seq_printf(s, "SS.Inactive\n");
|
|
break;
|
|
case DWC3_LINK_STATE_POLL:
|
|
seq_printf(s, "Poll\n");
|
|
break;
|
|
case DWC3_LINK_STATE_RECOV:
|
|
seq_printf(s, "Recovery\n");
|
|
break;
|
|
case DWC3_LINK_STATE_HRESET:
|
|
seq_printf(s, "HRESET\n");
|
|
break;
|
|
case DWC3_LINK_STATE_CMPLY:
|
|
seq_printf(s, "Compliance\n");
|
|
break;
|
|
case DWC3_LINK_STATE_LPBK:
|
|
seq_printf(s, "Loopback\n");
|
|
break;
|
|
case DWC3_LINK_STATE_RESET:
|
|
seq_printf(s, "Reset\n");
|
|
break;
|
|
case DWC3_LINK_STATE_RESUME:
|
|
seq_printf(s, "Resume\n");
|
|
break;
|
|
default:
|
|
seq_printf(s, "UNKNOWN %d\n", state);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_link_state_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, dwc3_link_state_show, inode->i_private);
|
|
}
|
|
|
|
static ssize_t dwc3_link_state_write(struct file *file,
|
|
const char __user *ubuf, size_t count, loff_t *ppos)
|
|
{
|
|
struct seq_file *s = file->private_data;
|
|
struct dwc3 *dwc = s->private;
|
|
unsigned long flags;
|
|
enum dwc3_link_state state = 0;
|
|
char buf[32];
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
if (!strncmp(buf, "SS.Disabled", 11))
|
|
state = DWC3_LINK_STATE_SS_DIS;
|
|
else if (!strncmp(buf, "Rx.Detect", 9))
|
|
state = DWC3_LINK_STATE_RX_DET;
|
|
else if (!strncmp(buf, "SS.Inactive", 11))
|
|
state = DWC3_LINK_STATE_SS_INACT;
|
|
else if (!strncmp(buf, "Recovery", 8))
|
|
state = DWC3_LINK_STATE_RECOV;
|
|
else if (!strncmp(buf, "Compliance", 10))
|
|
state = DWC3_LINK_STATE_CMPLY;
|
|
else if (!strncmp(buf, "Loopback", 8))
|
|
state = DWC3_LINK_STATE_LPBK;
|
|
else
|
|
return -EINVAL;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
dwc3_gadget_set_link_state(dwc, state);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations dwc3_link_state_fops = {
|
|
.open = dwc3_link_state_open,
|
|
.write = dwc3_link_state_write,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
int dwc3_debugfs_init(struct dwc3 *dwc)
|
|
{
|
|
struct dentry *root;
|
|
struct dentry *file;
|
|
int ret;
|
|
|
|
root = debugfs_create_dir(dev_name(dwc->dev), NULL);
|
|
if (!root) {
|
|
ret = -ENOMEM;
|
|
goto err0;
|
|
}
|
|
|
|
dwc->root = root;
|
|
|
|
dwc->regset = kzalloc(sizeof(*dwc->regset), GFP_KERNEL);
|
|
if (!dwc->regset) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
dwc->regset->regs = dwc3_regs;
|
|
dwc->regset->nregs = ARRAY_SIZE(dwc3_regs);
|
|
dwc->regset->base = dwc->regs;
|
|
|
|
file = debugfs_create_regset32("regdump", S_IRUGO, root, dwc->regset);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err2;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) {
|
|
file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_mode_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err2;
|
|
}
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) ||
|
|
IS_ENABLED(CONFIG_USB_DWC3_GADGET)) {
|
|
file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_testmode_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err2;
|
|
}
|
|
|
|
file = debugfs_create_file("link_state", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_link_state_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err2;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err2:
|
|
kfree(dwc->regset);
|
|
|
|
err1:
|
|
debugfs_remove_recursive(root);
|
|
|
|
err0:
|
|
return ret;
|
|
}
|
|
|
|
void dwc3_debugfs_exit(struct dwc3 *dwc)
|
|
{
|
|
debugfs_remove_recursive(dwc->root);
|
|
kfree(dwc->regset);
|
|
}
|