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1104 lines
28 KiB
1104 lines
28 KiB
/**
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* debugfs.c - DesignWare USB3 DRD Controller DebugFS file
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*
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* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
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*
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* Authors: Felipe Balbi <balbi@ti.com>,
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* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 of
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* the License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/ptrace.h>
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <linux/delay.h>
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#include <linux/uaccess.h>
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#include <linux/usb/ch9.h>
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#include "core.h"
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#include "gadget.h"
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#include "io.h"
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#include "debug.h"
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#define dump_register(nm) \
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{ \
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.name = __stringify(nm), \
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.offset = DWC3_ ##nm, \
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}
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#define dump_ep_register_set(n) \
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{ \
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.name = "DEPCMDPAR2("__stringify(n)")", \
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.offset = DWC3_DEP_BASE(n) + \
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DWC3_DEPCMDPAR2, \
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}, \
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{ \
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.name = "DEPCMDPAR1("__stringify(n)")", \
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.offset = DWC3_DEP_BASE(n) + \
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DWC3_DEPCMDPAR1, \
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}, \
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{ \
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.name = "DEPCMDPAR0("__stringify(n)")", \
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.offset = DWC3_DEP_BASE(n) + \
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DWC3_DEPCMDPAR0, \
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}, \
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{ \
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.name = "DEPCMD("__stringify(n)")", \
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.offset = DWC3_DEP_BASE(n) + \
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DWC3_DEPCMD, \
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}
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#define ep_event_rate(ev, c, p, dt) \
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((dt) ? ((c.ev - p.ev) * (MSEC_PER_SEC)) / (dt) : 0)
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static const struct debugfs_reg32 dwc3_regs[] = {
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dump_register(GSBUSCFG0),
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dump_register(GSBUSCFG1),
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dump_register(GTXTHRCFG),
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dump_register(GRXTHRCFG),
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dump_register(GCTL),
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dump_register(GEVTEN),
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dump_register(GSTS),
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dump_register(GUCTL1),
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dump_register(GSNPSID),
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dump_register(GGPIO),
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dump_register(GUID),
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dump_register(GUCTL),
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dump_register(GBUSERRADDR0),
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dump_register(GBUSERRADDR1),
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dump_register(GPRTBIMAP0),
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dump_register(GPRTBIMAP1),
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dump_register(GHWPARAMS0),
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dump_register(GHWPARAMS1),
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dump_register(GHWPARAMS2),
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dump_register(GHWPARAMS3),
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dump_register(GHWPARAMS4),
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dump_register(GHWPARAMS5),
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dump_register(GHWPARAMS6),
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dump_register(GHWPARAMS7),
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dump_register(GDBGFIFOSPACE),
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dump_register(GDBGLTSSM),
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dump_register(GPRTBIMAP_HS0),
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dump_register(GPRTBIMAP_HS1),
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dump_register(GPRTBIMAP_FS0),
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dump_register(GPRTBIMAP_FS1),
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dump_register(GUSB2PHYCFG(0)),
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dump_register(GUSB2PHYCFG(1)),
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dump_register(GUSB2PHYCFG(2)),
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dump_register(GUSB2PHYCFG(3)),
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dump_register(GUSB2PHYCFG(4)),
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dump_register(GUSB2PHYCFG(5)),
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dump_register(GUSB2PHYCFG(6)),
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dump_register(GUSB2PHYCFG(7)),
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dump_register(GUSB2PHYCFG(8)),
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dump_register(GUSB2PHYCFG(9)),
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dump_register(GUSB2PHYCFG(10)),
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dump_register(GUSB2PHYCFG(11)),
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dump_register(GUSB2PHYCFG(12)),
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dump_register(GUSB2PHYCFG(13)),
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dump_register(GUSB2PHYCFG(14)),
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dump_register(GUSB2PHYCFG(15)),
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dump_register(GUSB2I2CCTL(0)),
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dump_register(GUSB2I2CCTL(1)),
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dump_register(GUSB2I2CCTL(2)),
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dump_register(GUSB2I2CCTL(3)),
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dump_register(GUSB2I2CCTL(4)),
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dump_register(GUSB2I2CCTL(5)),
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dump_register(GUSB2I2CCTL(6)),
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dump_register(GUSB2I2CCTL(7)),
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dump_register(GUSB2I2CCTL(8)),
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dump_register(GUSB2I2CCTL(9)),
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dump_register(GUSB2I2CCTL(10)),
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dump_register(GUSB2I2CCTL(11)),
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dump_register(GUSB2I2CCTL(12)),
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dump_register(GUSB2I2CCTL(13)),
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dump_register(GUSB2I2CCTL(14)),
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dump_register(GUSB2I2CCTL(15)),
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dump_register(GUSB2PHYACC(0)),
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dump_register(GUSB2PHYACC(1)),
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dump_register(GUSB2PHYACC(2)),
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dump_register(GUSB2PHYACC(3)),
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dump_register(GUSB2PHYACC(4)),
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dump_register(GUSB2PHYACC(5)),
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dump_register(GUSB2PHYACC(6)),
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dump_register(GUSB2PHYACC(7)),
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dump_register(GUSB2PHYACC(8)),
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dump_register(GUSB2PHYACC(9)),
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dump_register(GUSB2PHYACC(10)),
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dump_register(GUSB2PHYACC(11)),
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dump_register(GUSB2PHYACC(12)),
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dump_register(GUSB2PHYACC(13)),
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dump_register(GUSB2PHYACC(14)),
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dump_register(GUSB2PHYACC(15)),
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dump_register(GUSB3PIPECTL(0)),
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dump_register(GUSB3PIPECTL(1)),
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dump_register(GUSB3PIPECTL(2)),
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dump_register(GUSB3PIPECTL(3)),
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dump_register(GUSB3PIPECTL(4)),
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dump_register(GUSB3PIPECTL(5)),
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dump_register(GUSB3PIPECTL(6)),
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dump_register(GUSB3PIPECTL(7)),
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dump_register(GUSB3PIPECTL(8)),
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dump_register(GUSB3PIPECTL(9)),
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dump_register(GUSB3PIPECTL(10)),
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dump_register(GUSB3PIPECTL(11)),
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dump_register(GUSB3PIPECTL(12)),
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dump_register(GUSB3PIPECTL(13)),
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dump_register(GUSB3PIPECTL(14)),
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dump_register(GUSB3PIPECTL(15)),
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dump_register(GTXFIFOSIZ(0)),
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dump_register(GTXFIFOSIZ(1)),
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dump_register(GTXFIFOSIZ(2)),
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dump_register(GTXFIFOSIZ(3)),
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dump_register(GTXFIFOSIZ(4)),
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dump_register(GTXFIFOSIZ(5)),
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dump_register(GTXFIFOSIZ(6)),
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dump_register(GTXFIFOSIZ(7)),
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dump_register(GTXFIFOSIZ(8)),
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dump_register(GTXFIFOSIZ(9)),
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dump_register(GTXFIFOSIZ(10)),
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dump_register(GTXFIFOSIZ(11)),
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dump_register(GTXFIFOSIZ(12)),
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dump_register(GTXFIFOSIZ(13)),
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dump_register(GTXFIFOSIZ(14)),
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dump_register(GTXFIFOSIZ(15)),
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dump_register(GTXFIFOSIZ(16)),
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dump_register(GTXFIFOSIZ(17)),
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dump_register(GTXFIFOSIZ(18)),
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dump_register(GTXFIFOSIZ(19)),
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dump_register(GTXFIFOSIZ(20)),
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dump_register(GTXFIFOSIZ(21)),
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dump_register(GTXFIFOSIZ(22)),
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dump_register(GTXFIFOSIZ(23)),
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dump_register(GTXFIFOSIZ(24)),
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dump_register(GTXFIFOSIZ(25)),
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dump_register(GTXFIFOSIZ(26)),
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dump_register(GTXFIFOSIZ(27)),
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dump_register(GTXFIFOSIZ(28)),
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dump_register(GTXFIFOSIZ(29)),
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dump_register(GTXFIFOSIZ(30)),
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dump_register(GTXFIFOSIZ(31)),
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dump_register(GRXFIFOSIZ(0)),
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dump_register(GRXFIFOSIZ(1)),
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dump_register(GRXFIFOSIZ(2)),
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dump_register(GRXFIFOSIZ(3)),
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dump_register(GRXFIFOSIZ(4)),
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dump_register(GRXFIFOSIZ(5)),
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dump_register(GRXFIFOSIZ(6)),
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dump_register(GRXFIFOSIZ(7)),
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dump_register(GRXFIFOSIZ(8)),
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dump_register(GRXFIFOSIZ(9)),
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dump_register(GRXFIFOSIZ(10)),
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dump_register(GRXFIFOSIZ(11)),
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dump_register(GRXFIFOSIZ(12)),
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dump_register(GRXFIFOSIZ(13)),
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dump_register(GRXFIFOSIZ(14)),
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dump_register(GRXFIFOSIZ(15)),
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dump_register(GRXFIFOSIZ(16)),
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dump_register(GRXFIFOSIZ(17)),
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dump_register(GRXFIFOSIZ(18)),
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dump_register(GRXFIFOSIZ(19)),
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dump_register(GRXFIFOSIZ(20)),
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dump_register(GRXFIFOSIZ(21)),
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dump_register(GRXFIFOSIZ(22)),
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dump_register(GRXFIFOSIZ(23)),
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dump_register(GRXFIFOSIZ(24)),
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dump_register(GRXFIFOSIZ(25)),
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dump_register(GRXFIFOSIZ(26)),
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dump_register(GRXFIFOSIZ(27)),
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dump_register(GRXFIFOSIZ(28)),
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dump_register(GRXFIFOSIZ(29)),
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dump_register(GRXFIFOSIZ(30)),
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dump_register(GRXFIFOSIZ(31)),
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dump_register(GEVNTADRLO(0)),
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dump_register(GEVNTADRHI(0)),
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dump_register(GEVNTSIZ(0)),
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dump_register(GEVNTCOUNT(0)),
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dump_register(GHWPARAMS8),
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dump_register(DCFG),
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dump_register(DCTL),
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dump_register(DEVTEN),
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dump_register(DSTS),
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dump_register(DGCMDPAR),
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dump_register(DGCMD),
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dump_register(DALEPENA),
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dump_ep_register_set(0),
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dump_ep_register_set(1),
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dump_ep_register_set(2),
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dump_ep_register_set(3),
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dump_ep_register_set(4),
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dump_ep_register_set(5),
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dump_ep_register_set(6),
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dump_ep_register_set(7),
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dump_ep_register_set(8),
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dump_ep_register_set(9),
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dump_ep_register_set(10),
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dump_ep_register_set(11),
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dump_ep_register_set(12),
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dump_ep_register_set(13),
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dump_ep_register_set(14),
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dump_ep_register_set(15),
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dump_ep_register_set(16),
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dump_ep_register_set(17),
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dump_ep_register_set(18),
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dump_ep_register_set(19),
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dump_ep_register_set(20),
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dump_ep_register_set(21),
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dump_ep_register_set(22),
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dump_ep_register_set(23),
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dump_ep_register_set(24),
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dump_ep_register_set(25),
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dump_ep_register_set(26),
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dump_ep_register_set(27),
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dump_ep_register_set(28),
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dump_ep_register_set(29),
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dump_ep_register_set(30),
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dump_ep_register_set(31),
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dump_register(OCFG),
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dump_register(OCTL),
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dump_register(OEVT),
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dump_register(OEVTEN),
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dump_register(OSTS),
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};
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static int dwc3_regdump_show(struct seq_file *s, void *unused)
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{
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struct dwc3 *dwc = s->private;
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if (atomic_read(&dwc->in_lpm)) {
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seq_puts(s, "USB device is powered off\n");
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return 0;
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}
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debugfs_print_regs32(s, dwc->regset->regs, dwc->regset->nregs,
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dwc->regset->base, "");
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return 0;
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}
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static int dwc3_regdump_open(struct inode *inode, struct file *file)
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{
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return single_open(file, dwc3_regdump_show, inode->i_private);
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}
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static const struct file_operations dwc3_regdump_fops = {
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.open = dwc3_regdump_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 int dwc3_mode_show(struct seq_file *s, void *unused)
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{
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struct dwc3 *dwc = s->private;
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unsigned long flags;
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u32 reg;
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if (atomic_read(&dwc->in_lpm)) {
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seq_puts(s, "USB device is powered off\n");
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return 0;
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}
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spin_lock_irqsave(&dwc->lock, flags);
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reg = dwc3_readl(dwc->regs, DWC3_GCTL);
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spin_unlock_irqrestore(&dwc->lock, flags);
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switch (DWC3_GCTL_PRTCAP(reg)) {
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case DWC3_GCTL_PRTCAP_HOST:
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seq_printf(s, "host\n");
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break;
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case DWC3_GCTL_PRTCAP_DEVICE:
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seq_printf(s, "device\n");
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break;
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case DWC3_GCTL_PRTCAP_OTG:
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seq_printf(s, "otg\n");
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break;
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default:
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seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg));
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}
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return 0;
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}
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static int dwc3_mode_open(struct inode *inode, struct file *file)
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{
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return single_open(file, dwc3_mode_show, inode->i_private);
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}
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static ssize_t dwc3_mode_write(struct file *file,
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const char __user *ubuf, size_t count, loff_t *ppos)
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{
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struct seq_file *s = file->private_data;
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struct dwc3 *dwc = s->private;
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u32 mode = 0;
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char buf[32] = {};
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if (atomic_read(&dwc->in_lpm)) {
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dev_err(dwc->dev, "USB device is powered off\n");
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return count;
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}
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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if (!strncmp(buf, "host", 4))
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mode = DWC3_GCTL_PRTCAP_HOST;
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if (!strncmp(buf, "device", 6))
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mode = DWC3_GCTL_PRTCAP_DEVICE;
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if (!strncmp(buf, "otg", 3))
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mode = DWC3_GCTL_PRTCAP_OTG;
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dwc3_set_mode(dwc, mode);
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return count;
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}
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|
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static const struct file_operations dwc3_mode_fops = {
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.open = dwc3_mode_open,
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.write = dwc3_mode_write,
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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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|
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static int dwc3_testmode_show(struct seq_file *s, void *unused)
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{
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struct dwc3 *dwc = s->private;
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unsigned long flags;
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u32 reg;
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|
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if (atomic_read(&dwc->in_lpm)) {
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seq_puts(s, "USB device is powered off\n");
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return 0;
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}
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|
|
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spin_lock_irqsave(&dwc->lock, flags);
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reg = dwc3_readl(dwc->regs, DWC3_DCTL);
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reg &= DWC3_DCTL_TSTCTRL_MASK;
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reg >>= 1;
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spin_unlock_irqrestore(&dwc->lock, flags);
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|
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switch (reg) {
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case 0:
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seq_printf(s, "no test\n");
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break;
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case TEST_J:
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seq_printf(s, "test_j\n");
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break;
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case TEST_K:
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seq_printf(s, "test_k\n");
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break;
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case TEST_SE0_NAK:
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seq_printf(s, "test_se0_nak\n");
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break;
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case TEST_PACKET:
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seq_printf(s, "test_packet\n");
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break;
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case TEST_FORCE_EN:
|
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seq_printf(s, "test_force_enable\n");
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break;
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default:
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seq_printf(s, "UNKNOWN %d\n", reg);
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}
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|
|
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return 0;
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|
}
|
|
|
|
static int dwc3_testmode_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, dwc3_testmode_show, inode->i_private);
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|
}
|
|
|
|
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;
|
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unsigned long flags;
|
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u32 testmode = 0;
|
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char buf[32] = {};
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|
|
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if (atomic_read(&dwc->in_lpm)) {
|
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seq_puts(s, "USB device is powered off\n");
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|
return 0;
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|
}
|
|
|
|
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;
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|
else if (!strncmp(buf, "test_packet", 11))
|
|
testmode = TEST_PACKET;
|
|
else if (!strncmp(buf, "test_force_enable", 17))
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|
testmode = TEST_FORCE_EN;
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|
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;
|
|
u8 speed;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
reg = dwc3_readl(dwc->regs, DWC3_DSTS);
|
|
state = DWC3_DSTS_USBLNKST(reg);
|
|
speed = reg & DWC3_DSTS_CONNECTSPD;
|
|
|
|
seq_printf(s, "%s\n", (speed >= DWC3_DSTS_SUPERSPEED) ?
|
|
dwc3_gadget_link_string(state) :
|
|
dwc3_gadget_hs_link_string(state));
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
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] = {};
|
|
u32 reg;
|
|
u8 speed;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
reg = dwc3_readl(dwc->regs, DWC3_DSTS);
|
|
speed = reg & DWC3_DSTS_CONNECTSPD;
|
|
|
|
if (speed < DWC3_DSTS_SUPERSPEED &&
|
|
state != DWC3_LINK_STATE_RECOV) {
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
return -EINVAL;
|
|
}
|
|
|
|
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,
|
|
};
|
|
|
|
struct dwc3_ep_file_map {
|
|
char name[25];
|
|
int (*show)(struct seq_file *s, void *unused);
|
|
};
|
|
|
|
static int dwc3_tx_fifo_queue_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
u32 val;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
val = dwc3_core_fifo_space(dep, DWC3_TXFIFOQ);
|
|
seq_printf(s, "%u\n", val);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_rx_fifo_queue_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
u32 val;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
val = dwc3_core_fifo_space(dep, DWC3_RXFIFOQ);
|
|
seq_printf(s, "%u\n", val);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_tx_request_queue_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
u32 val;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
val = dwc3_core_fifo_space(dep, DWC3_TXREQQ);
|
|
seq_printf(s, "%u\n", val);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_rx_request_queue_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
u32 val;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
val = dwc3_core_fifo_space(dep, DWC3_RXREQQ);
|
|
seq_printf(s, "%u\n", val);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_rx_info_queue_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
u32 val;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
val = dwc3_core_fifo_space(dep, DWC3_RXINFOQ);
|
|
seq_printf(s, "%u\n", val);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_descriptor_fetch_queue_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
u32 val;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
val = dwc3_core_fifo_space(dep, DWC3_DESCFETCHQ);
|
|
seq_printf(s, "%u\n", val);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_event_queue_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
u32 val;
|
|
|
|
if (atomic_read(&dwc->in_lpm)) {
|
|
seq_puts(s, "USB device is powered off\n");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
val = dwc3_core_fifo_space(dep, DWC3_EVENTQ);
|
|
seq_printf(s, "%u\n", val);
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_ep_transfer_type_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
if (!(dep->flags & DWC3_EP_ENABLED) ||
|
|
!dep->endpoint.desc) {
|
|
seq_printf(s, "--\n");
|
|
goto out;
|
|
}
|
|
|
|
switch (usb_endpoint_type(dep->endpoint.desc)) {
|
|
case USB_ENDPOINT_XFER_CONTROL:
|
|
seq_printf(s, "control\n");
|
|
break;
|
|
case USB_ENDPOINT_XFER_ISOC:
|
|
seq_printf(s, "isochronous\n");
|
|
break;
|
|
case USB_ENDPOINT_XFER_BULK:
|
|
seq_printf(s, "bulk\n");
|
|
break;
|
|
case USB_ENDPOINT_XFER_INT:
|
|
seq_printf(s, "interrupt\n");
|
|
break;
|
|
default:
|
|
seq_printf(s, "--\n");
|
|
}
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_ep_trb_ring_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3_ep *dep = s->private;
|
|
struct dwc3 *dwc = dep->dwc;
|
|
unsigned long flags;
|
|
int i;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
if (dep->number <= 1) {
|
|
seq_printf(s, "--\n");
|
|
goto out;
|
|
}
|
|
|
|
seq_printf(s, "buffer_addr,size,type,ioc,isp_imi,csp,chn,lst,hwo\n");
|
|
|
|
for (i = 0; i < DWC3_TRB_NUM; i++) {
|
|
struct dwc3_trb *trb = &dep->trb_pool[i];
|
|
unsigned int type = DWC3_TRBCTL_TYPE(trb->ctrl);
|
|
|
|
seq_printf(s, "%08x%08x,%d,%s,%d,%d,%d,%d,%d,%d %c%c\n",
|
|
trb->bph, trb->bpl, trb->size,
|
|
dwc3_trb_type_string(type),
|
|
!!(trb->ctrl & DWC3_TRB_CTRL_IOC),
|
|
!!(trb->ctrl & DWC3_TRB_CTRL_ISP_IMI),
|
|
!!(trb->ctrl & DWC3_TRB_CTRL_CSP),
|
|
!!(trb->ctrl & DWC3_TRB_CTRL_CHN),
|
|
!!(trb->ctrl & DWC3_TRB_CTRL_LST),
|
|
!!(trb->ctrl & DWC3_TRB_CTRL_HWO),
|
|
dep->trb_enqueue == i ? 'E' : ' ',
|
|
dep->trb_dequeue == i ? 'D' : ' ');
|
|
}
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct dwc3_ep_file_map map[] = {
|
|
{ "tx_fifo_queue", dwc3_tx_fifo_queue_show, },
|
|
{ "rx_fifo_queue", dwc3_rx_fifo_queue_show, },
|
|
{ "tx_request_queue", dwc3_tx_request_queue_show, },
|
|
{ "rx_request_queue", dwc3_rx_request_queue_show, },
|
|
{ "rx_info_queue", dwc3_rx_info_queue_show, },
|
|
{ "descriptor_fetch_queue", dwc3_descriptor_fetch_queue_show, },
|
|
{ "event_queue", dwc3_event_queue_show, },
|
|
{ "transfer_type", dwc3_ep_transfer_type_show, },
|
|
{ "trb_ring", dwc3_ep_trb_ring_show, },
|
|
};
|
|
|
|
static int dwc3_endpoint_open(struct inode *inode, struct file *file)
|
|
{
|
|
const char *file_name = file_dentry(file)->d_iname;
|
|
struct dwc3_ep_file_map *f_map;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(map); i++) {
|
|
f_map = &map[i];
|
|
|
|
if (strcmp(f_map->name, file_name) == 0)
|
|
break;
|
|
}
|
|
|
|
return single_open(file, f_map->show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations dwc3_endpoint_fops = {
|
|
.open = dwc3_endpoint_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static void dwc3_debugfs_create_endpoint_file(struct dwc3_ep *dep,
|
|
struct dentry *parent, int type)
|
|
{
|
|
struct dentry *file;
|
|
struct dwc3_ep_file_map *ep_file = &map[type];
|
|
|
|
file = debugfs_create_file(ep_file->name, S_IRUGO, parent, dep,
|
|
&dwc3_endpoint_fops);
|
|
}
|
|
|
|
static void dwc3_debugfs_create_endpoint_files(struct dwc3_ep *dep,
|
|
struct dentry *parent)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(map); i++)
|
|
dwc3_debugfs_create_endpoint_file(dep, parent, i);
|
|
}
|
|
|
|
static void dwc3_debugfs_create_endpoint_dir(struct dwc3_ep *dep,
|
|
struct dentry *parent)
|
|
{
|
|
struct dentry *dir;
|
|
|
|
dir = debugfs_create_dir(dep->name, parent);
|
|
if (IS_ERR_OR_NULL(dir))
|
|
return;
|
|
|
|
dwc3_debugfs_create_endpoint_files(dep, dir);
|
|
}
|
|
|
|
static void dwc3_debugfs_create_endpoint_dirs(struct dwc3 *dwc,
|
|
struct dentry *parent)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < dwc->num_eps; i++) {
|
|
struct dwc3_ep *dep = dwc->eps[i];
|
|
|
|
if (!dep)
|
|
continue;
|
|
|
|
dwc3_debugfs_create_endpoint_dir(dep, parent);
|
|
}
|
|
}
|
|
|
|
static ssize_t dwc3_store_int_events(struct file *file,
|
|
const char __user *ubuf, size_t count, loff_t *ppos)
|
|
{
|
|
int i, ret;
|
|
unsigned long flags;
|
|
struct seq_file *s = file->private_data;
|
|
struct dwc3 *dwc = s->private;
|
|
struct dwc3_ep *dep;
|
|
struct timespec ts;
|
|
u8 clear_stats;
|
|
|
|
if (ubuf == NULL) {
|
|
pr_err("[%s] EINVAL\n", __func__);
|
|
ret = -EINVAL;
|
|
return ret;
|
|
}
|
|
|
|
ret = kstrtou8_from_user(ubuf, count, 0, &clear_stats);
|
|
if (ret < 0) {
|
|
pr_err("can't get enter value.\n");
|
|
return ret;
|
|
}
|
|
|
|
if (clear_stats != 0) {
|
|
pr_err("Wrong value. To clear stats, enter value as 0.\n");
|
|
ret = -EINVAL;
|
|
return ret;
|
|
}
|
|
|
|
pr_debug("%s(): clearing debug interrupt buffers\n", __func__);
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
ts = current_kernel_time();
|
|
for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
|
|
dep = dwc->eps[i];
|
|
memset(&dep->dbg_ep_events, 0, sizeof(dep->dbg_ep_events));
|
|
memset(&dep->dbg_ep_events_diff, 0, sizeof(dep->dbg_ep_events));
|
|
dep->dbg_ep_events_ts = ts;
|
|
}
|
|
memset(&dwc->dbg_gadget_events, 0, sizeof(dwc->dbg_gadget_events));
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
return count;
|
|
}
|
|
|
|
static int dwc3_gadget_int_events_show(struct seq_file *s, void *unused)
|
|
{
|
|
unsigned long flags;
|
|
struct dwc3 *dwc = s->private;
|
|
struct dwc3_gadget_events *dbg_gadget_events;
|
|
struct dwc3_ep *dep;
|
|
int i;
|
|
struct timespec ts_delta;
|
|
struct timespec ts_current;
|
|
u32 ts_delta_ms;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
dbg_gadget_events = &dwc->dbg_gadget_events;
|
|
|
|
for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
|
|
dep = dwc->eps[i];
|
|
|
|
if (dep == NULL || !(dep->flags & DWC3_EP_ENABLED))
|
|
continue;
|
|
|
|
ts_current = current_kernel_time();
|
|
ts_delta = timespec_sub(ts_current, dep->dbg_ep_events_ts);
|
|
ts_delta_ms = ts_delta.tv_nsec / NSEC_PER_MSEC +
|
|
ts_delta.tv_sec * MSEC_PER_SEC;
|
|
|
|
seq_printf(s, "\n\n===== dbg_ep_events for EP(%d) %s =====\n",
|
|
i, dep->name);
|
|
seq_printf(s, "xfercomplete:%u @ %luHz\n",
|
|
dep->dbg_ep_events.xfercomplete,
|
|
ep_event_rate(xfercomplete, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "xfernotready:%u @ %luHz\n",
|
|
dep->dbg_ep_events.xfernotready,
|
|
ep_event_rate(xfernotready, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "control_data:%u @ %luHz\n",
|
|
dep->dbg_ep_events.control_data,
|
|
ep_event_rate(control_data, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "control_status:%u @ %luHz\n",
|
|
dep->dbg_ep_events.control_status,
|
|
ep_event_rate(control_status, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "xferinprogress:%u @ %luHz\n",
|
|
dep->dbg_ep_events.xferinprogress,
|
|
ep_event_rate(xferinprogress, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "rxtxfifoevent:%u @ %luHz\n",
|
|
dep->dbg_ep_events.rxtxfifoevent,
|
|
ep_event_rate(rxtxfifoevent, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "streamevent:%u @ %luHz\n",
|
|
dep->dbg_ep_events.streamevent,
|
|
ep_event_rate(streamevent, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "epcmdcomplt:%u @ %luHz\n",
|
|
dep->dbg_ep_events.epcmdcomplete,
|
|
ep_event_rate(epcmdcomplete, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "unknown:%u @ %luHz\n",
|
|
dep->dbg_ep_events.unknown_event,
|
|
ep_event_rate(unknown_event, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
seq_printf(s, "total:%u @ %luHz\n",
|
|
dep->dbg_ep_events.total,
|
|
ep_event_rate(total, dep->dbg_ep_events,
|
|
dep->dbg_ep_events_diff, ts_delta_ms));
|
|
|
|
dep->dbg_ep_events_ts = ts_current;
|
|
dep->dbg_ep_events_diff = dep->dbg_ep_events;
|
|
}
|
|
|
|
seq_puts(s, "\n=== dbg_gadget events ==\n");
|
|
seq_printf(s, "disconnect:%u\n reset:%u\n",
|
|
dbg_gadget_events->disconnect, dbg_gadget_events->reset);
|
|
seq_printf(s, "connect:%u\n wakeup:%u\n",
|
|
dbg_gadget_events->connect, dbg_gadget_events->wakeup);
|
|
seq_printf(s, "link_status_change:%u\n eopf:%u\n",
|
|
dbg_gadget_events->link_status_change, dbg_gadget_events->eopf);
|
|
seq_printf(s, "sof:%u\n suspend:%u\n",
|
|
dbg_gadget_events->sof, dbg_gadget_events->suspend);
|
|
seq_printf(s, "erratic_error:%u\n overflow:%u\n",
|
|
dbg_gadget_events->erratic_error,
|
|
dbg_gadget_events->overflow);
|
|
seq_printf(s, "vendor_dev_test_lmp:%u\n cmdcmplt:%u\n",
|
|
dbg_gadget_events->vendor_dev_test_lmp,
|
|
dbg_gadget_events->cmdcmplt);
|
|
seq_printf(s, "unknown_event:%u\n", dbg_gadget_events->unknown_event);
|
|
|
|
seq_printf(s, "\n\t== Last %d interrupts stats ==\t\n", MAX_INTR_STATS);
|
|
seq_puts(s, "@ time (us):\t");
|
|
for (i = 0; i < MAX_INTR_STATS; i++)
|
|
seq_printf(s, "%lld\t", ktime_to_us(dwc->irq_start_time[i]));
|
|
seq_puts(s, "\nhard irq time (us):\t");
|
|
for (i = 0; i < MAX_INTR_STATS; i++)
|
|
seq_printf(s, "%d\t", dwc->irq_completion_time[i]);
|
|
seq_puts(s, "\nevents count:\t\t");
|
|
for (i = 0; i < MAX_INTR_STATS; i++)
|
|
seq_printf(s, "%d\t", dwc->irq_event_count[i]);
|
|
seq_puts(s, "\nbh handled count:\t");
|
|
for (i = 0; i < MAX_INTR_STATS; i++)
|
|
seq_printf(s, "%d\t", dwc->bh_handled_evt_cnt[i]);
|
|
seq_puts(s, "\nirq thread time (us):\t");
|
|
for (i = 0; i < MAX_INTR_STATS; i++)
|
|
seq_printf(s, "%d\t", dwc->bh_completion_time[i]);
|
|
seq_putc(s, '\n');
|
|
|
|
seq_printf(s, "t_pwr evt irq : %lld\n",
|
|
ktime_to_us(dwc->t_pwr_evt_irq));
|
|
|
|
seq_printf(s, "l1_remote_wakeup_cnt : %lu\n",
|
|
dwc->l1_remote_wakeup_cnt);
|
|
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_gadget_events_open(struct inode *inode, struct file *f)
|
|
{
|
|
return single_open(f, dwc3_gadget_int_events_show, inode->i_private);
|
|
}
|
|
|
|
const struct file_operations dwc3_gadget_dbg_events_fops = {
|
|
.open = dwc3_gadget_events_open,
|
|
.read = seq_read,
|
|
.write = dwc3_store_int_events,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
void dwc3_debugfs_init(struct dwc3 *dwc)
|
|
{
|
|
struct dentry *root;
|
|
struct dentry *file;
|
|
|
|
root = debugfs_create_dir(dev_name(dwc->dev), NULL);
|
|
if (IS_ERR_OR_NULL(root)) {
|
|
if (!root)
|
|
dev_err(dwc->dev, "Can't create debugfs root\n");
|
|
return;
|
|
}
|
|
dwc->root = root;
|
|
|
|
dwc->regset = kzalloc(sizeof(*dwc->regset), GFP_KERNEL);
|
|
if (!dwc->regset) {
|
|
debugfs_remove_recursive(root);
|
|
return;
|
|
}
|
|
|
|
dwc->regset->regs = dwc3_regs;
|
|
dwc->regset->nregs = ARRAY_SIZE(dwc3_regs);
|
|
dwc->regset->base = dwc->regs - DWC3_GLOBALS_REGS_START;
|
|
|
|
file = debugfs_create_file("regdump", 0444, root, dwc,
|
|
&dwc3_regdump_fops);
|
|
if (!file)
|
|
dev_dbg(dwc->dev, "Can't create debugfs regdump\n");
|
|
|
|
if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) {
|
|
file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_mode_fops);
|
|
if (!file)
|
|
dev_dbg(dwc->dev, "Can't create debugfs mode\n");
|
|
}
|
|
|
|
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)
|
|
dev_dbg(dwc->dev, "Can't create debugfs testmode\n");
|
|
|
|
file = debugfs_create_file("link_state", S_IRUGO | S_IWUSR,
|
|
root, dwc, &dwc3_link_state_fops);
|
|
if (!file)
|
|
dev_dbg(dwc->dev, "Can't create debugfs link_state\n");
|
|
|
|
dwc3_debugfs_create_endpoint_dirs(dwc, root);
|
|
|
|
file = debugfs_create_file("int_events", 0644, root, dwc,
|
|
&dwc3_gadget_dbg_events_fops);
|
|
if (!file)
|
|
dev_dbg(dwc->dev, "Can't create debugfs int_events\n");
|
|
}
|
|
}
|
|
|
|
void dwc3_debugfs_exit(struct dwc3 *dwc)
|
|
{
|
|
debugfs_remove_recursive(dwc->root);
|
|
kfree(dwc->regset);
|
|
}
|
|
|