1117 lines
28 KiB
C
1117 lines
28 KiB
C
/**
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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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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the above-listed copyright holders may not be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2, as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/module.h>
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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 - DWC3_GLOBALS_REGS_START, \
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}
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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(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_register(DEPCMDPAR2(0)),
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dump_register(DEPCMDPAR2(1)),
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dump_register(DEPCMDPAR2(2)),
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dump_register(DEPCMDPAR2(3)),
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dump_register(DEPCMDPAR2(4)),
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dump_register(DEPCMDPAR2(5)),
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dump_register(DEPCMDPAR2(6)),
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dump_register(DEPCMDPAR2(7)),
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dump_register(DEPCMDPAR2(8)),
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dump_register(DEPCMDPAR2(9)),
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dump_register(DEPCMDPAR2(10)),
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dump_register(DEPCMDPAR2(11)),
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dump_register(DEPCMDPAR2(12)),
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dump_register(DEPCMDPAR2(13)),
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dump_register(DEPCMDPAR2(14)),
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dump_register(DEPCMDPAR2(15)),
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dump_register(DEPCMDPAR2(16)),
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dump_register(DEPCMDPAR2(17)),
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dump_register(DEPCMDPAR2(18)),
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dump_register(DEPCMDPAR2(19)),
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dump_register(DEPCMDPAR2(20)),
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dump_register(DEPCMDPAR2(21)),
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dump_register(DEPCMDPAR2(22)),
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dump_register(DEPCMDPAR2(23)),
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dump_register(DEPCMDPAR2(24)),
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dump_register(DEPCMDPAR2(25)),
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dump_register(DEPCMDPAR2(26)),
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dump_register(DEPCMDPAR2(27)),
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dump_register(DEPCMDPAR2(28)),
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dump_register(DEPCMDPAR2(29)),
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dump_register(DEPCMDPAR2(30)),
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dump_register(DEPCMDPAR2(31)),
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dump_register(DEPCMDPAR1(0)),
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dump_register(DEPCMDPAR1(1)),
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dump_register(DEPCMDPAR1(2)),
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dump_register(DEPCMDPAR1(3)),
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dump_register(DEPCMDPAR1(4)),
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dump_register(DEPCMDPAR1(5)),
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dump_register(DEPCMDPAR1(6)),
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dump_register(DEPCMDPAR1(7)),
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dump_register(DEPCMDPAR1(8)),
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dump_register(DEPCMDPAR1(9)),
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dump_register(DEPCMDPAR1(10)),
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dump_register(DEPCMDPAR1(11)),
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dump_register(DEPCMDPAR1(12)),
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dump_register(DEPCMDPAR1(13)),
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dump_register(DEPCMDPAR1(14)),
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dump_register(DEPCMDPAR1(15)),
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dump_register(DEPCMDPAR1(16)),
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dump_register(DEPCMDPAR1(17)),
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dump_register(DEPCMDPAR1(18)),
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dump_register(DEPCMDPAR1(19)),
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dump_register(DEPCMDPAR1(20)),
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dump_register(DEPCMDPAR1(21)),
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dump_register(DEPCMDPAR1(22)),
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dump_register(DEPCMDPAR1(23)),
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dump_register(DEPCMDPAR1(24)),
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dump_register(DEPCMDPAR1(25)),
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dump_register(DEPCMDPAR1(26)),
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dump_register(DEPCMDPAR1(27)),
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dump_register(DEPCMDPAR1(28)),
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dump_register(DEPCMDPAR1(29)),
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dump_register(DEPCMDPAR1(30)),
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dump_register(DEPCMDPAR1(31)),
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dump_register(DEPCMDPAR0(0)),
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dump_register(DEPCMDPAR0(1)),
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dump_register(DEPCMDPAR0(2)),
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dump_register(DEPCMDPAR0(3)),
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dump_register(DEPCMDPAR0(4)),
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dump_register(DEPCMDPAR0(5)),
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dump_register(DEPCMDPAR0(6)),
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dump_register(DEPCMDPAR0(7)),
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dump_register(DEPCMDPAR0(8)),
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dump_register(DEPCMDPAR0(9)),
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dump_register(DEPCMDPAR0(10)),
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dump_register(DEPCMDPAR0(11)),
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dump_register(DEPCMDPAR0(12)),
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dump_register(DEPCMDPAR0(13)),
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dump_register(DEPCMDPAR0(14)),
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dump_register(DEPCMDPAR0(15)),
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dump_register(DEPCMDPAR0(16)),
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dump_register(DEPCMDPAR0(17)),
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dump_register(DEPCMDPAR0(18)),
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dump_register(DEPCMDPAR0(19)),
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dump_register(DEPCMDPAR0(20)),
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dump_register(DEPCMDPAR0(21)),
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dump_register(DEPCMDPAR0(22)),
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dump_register(DEPCMDPAR0(23)),
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dump_register(DEPCMDPAR0(24)),
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dump_register(DEPCMDPAR0(25)),
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dump_register(DEPCMDPAR0(26)),
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dump_register(DEPCMDPAR0(27)),
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dump_register(DEPCMDPAR0(28)),
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dump_register(DEPCMDPAR0(29)),
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dump_register(DEPCMDPAR0(30)),
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dump_register(DEPCMDPAR0(31)),
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dump_register(DEPCMD(0)),
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dump_register(DEPCMD(1)),
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dump_register(DEPCMD(2)),
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dump_register(DEPCMD(3)),
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dump_register(DEPCMD(4)),
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dump_register(DEPCMD(5)),
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dump_register(DEPCMD(6)),
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dump_register(DEPCMD(7)),
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dump_register(DEPCMD(8)),
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dump_register(DEPCMD(9)),
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dump_register(DEPCMD(10)),
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dump_register(DEPCMD(11)),
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dump_register(DEPCMD(12)),
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dump_register(DEPCMD(13)),
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dump_register(DEPCMD(14)),
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dump_register(DEPCMD(15)),
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dump_register(DEPCMD(16)),
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dump_register(DEPCMD(17)),
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dump_register(DEPCMD(18)),
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dump_register(DEPCMD(19)),
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dump_register(DEPCMD(20)),
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dump_register(DEPCMD(21)),
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dump_register(DEPCMD(22)),
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dump_register(DEPCMD(23)),
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dump_register(DEPCMD(24)),
|
|
dump_register(DEPCMD(25)),
|
|
dump_register(DEPCMD(26)),
|
|
dump_register(DEPCMD(27)),
|
|
dump_register(DEPCMD(28)),
|
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dump_register(DEPCMD(29)),
|
|
dump_register(DEPCMD(30)),
|
|
dump_register(DEPCMD(31)),
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|
|
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dump_register(OCFG),
|
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dump_register(OCTL),
|
|
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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seq_printf(s, "DesignWare USB3 Core Register Dump\n");
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debugfs_print_regs32(s, dwc3_regs, ARRAY_SIZE(dwc3_regs),
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dwc->regs, "");
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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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|
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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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.release = single_release,
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};
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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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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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|
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return 0;
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}
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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,
|
|
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];
|
|
|
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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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;
|
|
default:
|
|
seq_printf(s, "UNKNOWN %d\n", reg);
|
|
}
|
|
|
|
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,
|
|
};
|
|
|
|
static int ep_num;
|
|
static ssize_t dwc3_store_ep_num(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;
|
|
char kbuf[10];
|
|
unsigned int num, dir;
|
|
unsigned long flags;
|
|
|
|
memset(kbuf, 0, 10);
|
|
|
|
if (copy_from_user(kbuf, ubuf, count > 10 ? 10 : count))
|
|
return -EFAULT;
|
|
|
|
if (sscanf(kbuf, "%u %u", &num, &dir) != 2)
|
|
return -EINVAL;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
ep_num = (num << 1) + dir;
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return count;
|
|
}
|
|
|
|
static int dwc3_ep_req_list_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3 *dwc = s->private;
|
|
struct dwc3_ep *dep;
|
|
struct dwc3_request *req = NULL;
|
|
struct list_head *ptr = NULL;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
dep = dwc->eps[ep_num];
|
|
|
|
seq_printf(s, "%s request list: flags: 0x%x\n", dep->name, dep->flags);
|
|
list_for_each(ptr, &dep->request_list) {
|
|
req = list_entry(ptr, struct dwc3_request, list);
|
|
|
|
seq_printf(s,
|
|
"req:0x%p len: %d sts: %d dma:0x%pa num_sgs: %d\n",
|
|
req, req->request.length, req->request.status,
|
|
&req->request.dma, req->request.num_sgs);
|
|
}
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_ep_req_list_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, dwc3_ep_req_list_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations dwc3_ep_req_list_fops = {
|
|
.open = dwc3_ep_req_list_open,
|
|
.write = dwc3_store_ep_num,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int dwc3_ep_queued_req_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3 *dwc = s->private;
|
|
struct dwc3_ep *dep;
|
|
struct dwc3_request *req = NULL;
|
|
struct list_head *ptr = NULL;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
dep = dwc->eps[ep_num];
|
|
|
|
seq_printf(s, "%s queued reqs to HW: flags:0x%x\n", dep->name,
|
|
dep->flags);
|
|
list_for_each(ptr, &dep->req_queued) {
|
|
req = list_entry(ptr, struct dwc3_request, list);
|
|
|
|
seq_printf(s,
|
|
"req:0x%p len:%d sts:%d dma:%pa nsg:%d trb:0x%p\n",
|
|
req, req->request.length, req->request.status,
|
|
&req->request.dma, req->request.num_sgs, req->trb);
|
|
}
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_ep_queued_req_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, dwc3_ep_queued_req_show, inode->i_private);
|
|
}
|
|
|
|
const struct file_operations dwc3_ep_req_queued_fops = {
|
|
.open = dwc3_ep_queued_req_open,
|
|
.write = dwc3_store_ep_num,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int dwc3_ep_trbs_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct dwc3 *dwc = s->private;
|
|
struct dwc3_ep *dep;
|
|
struct dwc3_trb *trb;
|
|
unsigned long flags;
|
|
int j;
|
|
|
|
if (!ep_num)
|
|
return 0;
|
|
|
|
spin_lock_irqsave(&dwc->lock, flags);
|
|
dep = dwc->eps[ep_num];
|
|
|
|
seq_printf(s, "%s trb pool: flags:0x%x freeslot:%d busyslot:%d\n",
|
|
dep->name, dep->flags, dep->free_slot, dep->busy_slot);
|
|
for (j = 0; j < DWC3_TRB_NUM; j++) {
|
|
trb = &dep->trb_pool[j];
|
|
seq_printf(s, "trb:0x%p bph:0x%x bpl:0x%x size:0x%x ctrl: %x\n",
|
|
trb, trb->bph, trb->bpl, trb->size, trb->ctrl);
|
|
}
|
|
spin_unlock_irqrestore(&dwc->lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_ep_trbs_list_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, dwc3_ep_trbs_show, inode->i_private);
|
|
}
|
|
|
|
const struct file_operations dwc3_ep_trb_list_fops = {
|
|
.open = dwc3_ep_trbs_list_open,
|
|
.write = dwc3_store_ep_num,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static unsigned int ep_addr_rxdbg_mask;
|
|
module_param(ep_addr_rxdbg_mask, uint, S_IRUGO | S_IWUSR);
|
|
static unsigned int ep_addr_txdbg_mask;
|
|
module_param(ep_addr_txdbg_mask, uint, S_IRUGO | S_IWUSR);
|
|
|
|
/* Maximum debug message length */
|
|
#define DBG_DATA_MSG 64UL
|
|
|
|
/* Maximum number of messages */
|
|
#define DBG_DATA_MAX 128UL
|
|
|
|
static struct {
|
|
char (buf[DBG_DATA_MAX])[DBG_DATA_MSG]; /* buffer */
|
|
unsigned idx; /* index */
|
|
unsigned tty; /* print to console? */
|
|
rwlock_t lck; /* lock */
|
|
} dbg_dwc3_data = {
|
|
.idx = 0,
|
|
.tty = 0,
|
|
.lck = __RW_LOCK_UNLOCKED(lck)
|
|
};
|
|
|
|
/**
|
|
* dbg_dec: decrements debug event index
|
|
* @idx: buffer index
|
|
*/
|
|
static inline void __maybe_unused dbg_dec(unsigned *idx)
|
|
{
|
|
*idx = (*idx - 1) % DBG_DATA_MAX;
|
|
}
|
|
|
|
/**
|
|
* dbg_inc: increments debug event index
|
|
* @idx: buffer index
|
|
*/
|
|
static inline void dbg_inc(unsigned *idx)
|
|
{
|
|
*idx = (*idx + 1) % DBG_DATA_MAX;
|
|
}
|
|
|
|
#define TIME_BUF_LEN 20
|
|
/*get_timestamp - returns time of day in us */
|
|
static char *get_timestamp(char *tbuf)
|
|
{
|
|
unsigned long long t;
|
|
unsigned long nanosec_rem;
|
|
|
|
t = cpu_clock(smp_processor_id());
|
|
nanosec_rem = do_div(t, 1000000000)/1000;
|
|
scnprintf(tbuf, TIME_BUF_LEN, "[%5lu.%06lu] ", (unsigned long)t,
|
|
nanosec_rem);
|
|
return tbuf;
|
|
}
|
|
|
|
static int allow_dbg_print(u8 ep_num)
|
|
{
|
|
int dir, num;
|
|
|
|
/* allow bus wide events */
|
|
if (ep_num == 0xff)
|
|
return 1;
|
|
|
|
dir = ep_num & 0x1;
|
|
num = ep_num >> 1;
|
|
num = 1 << num;
|
|
|
|
if (dir && (num & ep_addr_txdbg_mask))
|
|
return 1;
|
|
if (!dir && (num & ep_addr_rxdbg_mask))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* dbg_print: prints the common part of the event
|
|
* @addr: endpoint address
|
|
* @name: event name
|
|
* @status: status
|
|
* @extra: extra information
|
|
*/
|
|
void dbg_print(u8 ep_num, const char *name, int status, const char *extra)
|
|
{
|
|
unsigned long flags;
|
|
char tbuf[TIME_BUF_LEN];
|
|
|
|
if (!allow_dbg_print(ep_num))
|
|
return;
|
|
|
|
write_lock_irqsave(&dbg_dwc3_data.lck, flags);
|
|
|
|
scnprintf(dbg_dwc3_data.buf[dbg_dwc3_data.idx], DBG_DATA_MSG,
|
|
"%s\t? %02X %-7.7s %4i ?\t%s\n",
|
|
get_timestamp(tbuf), ep_num, name, status, extra);
|
|
|
|
dbg_inc(&dbg_dwc3_data.idx);
|
|
|
|
write_unlock_irqrestore(&dbg_dwc3_data.lck, flags);
|
|
|
|
if (dbg_dwc3_data.tty != 0)
|
|
pr_notice("%s\t? %02X %-7.7s %4i ?\t%s\n",
|
|
get_timestamp(tbuf), ep_num, name, status, extra);
|
|
}
|
|
|
|
/**
|
|
* dbg_done: prints a DONE event
|
|
* @addr: endpoint address
|
|
* @td: transfer descriptor
|
|
* @status: status
|
|
*/
|
|
void dbg_done(u8 ep_num, const u32 count, int status)
|
|
{
|
|
char msg[DBG_DATA_MSG];
|
|
|
|
if (!allow_dbg_print(ep_num))
|
|
return;
|
|
|
|
scnprintf(msg, sizeof(msg), "%d", count);
|
|
dbg_print(ep_num, "DONE", status, msg);
|
|
}
|
|
|
|
/**
|
|
* dbg_event: prints a generic event
|
|
* @addr: endpoint address
|
|
* @name: event name
|
|
* @status: status
|
|
*/
|
|
void dbg_event(u8 ep_num, const char *name, int status)
|
|
{
|
|
if (!allow_dbg_print(ep_num))
|
|
return;
|
|
|
|
if (name != NULL)
|
|
dbg_print(ep_num, name, status, "");
|
|
}
|
|
|
|
/*
|
|
* dbg_queue: prints a QUEUE event
|
|
* @addr: endpoint address
|
|
* @req: USB request
|
|
* @status: status
|
|
*/
|
|
void dbg_queue(u8 ep_num, const struct usb_request *req, int status)
|
|
{
|
|
char msg[DBG_DATA_MSG];
|
|
|
|
if (!allow_dbg_print(ep_num))
|
|
return;
|
|
|
|
if (req != NULL) {
|
|
scnprintf(msg, sizeof(msg),
|
|
"%d %d", !req->no_interrupt, req->length);
|
|
dbg_print(ep_num, "QUEUE", status, msg);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* dbg_setup: prints a SETUP event
|
|
* @addr: endpoint address
|
|
* @req: setup request
|
|
*/
|
|
void dbg_setup(u8 ep_num, const struct usb_ctrlrequest *req)
|
|
{
|
|
char msg[DBG_DATA_MSG];
|
|
|
|
if (!allow_dbg_print(ep_num))
|
|
return;
|
|
|
|
if (req != NULL) {
|
|
scnprintf(msg, sizeof(msg),
|
|
"%02X %02X %04X %04X %d", req->bRequestType,
|
|
req->bRequest, le16_to_cpu(req->wValue),
|
|
le16_to_cpu(req->wIndex), le16_to_cpu(req->wLength));
|
|
dbg_print(ep_num, "SETUP", 0, msg);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* store_events: configure if events are going to be also printed to console
|
|
*
|
|
*/
|
|
static ssize_t dwc3_store_events(struct file *file,
|
|
const char __user *buf, size_t count, loff_t *ppos)
|
|
{
|
|
unsigned tty;
|
|
|
|
if (buf == NULL) {
|
|
pr_err("[%s] EINVAL\n", __func__);
|
|
goto done;
|
|
}
|
|
|
|
if (sscanf(buf, "%u", &tty) != 1 || tty > 1) {
|
|
pr_err("<1|0>: enable|disable console log\n");
|
|
goto done;
|
|
}
|
|
|
|
dbg_dwc3_data.tty = tty;
|
|
pr_info("tty = %u", dbg_dwc3_data.tty);
|
|
|
|
done:
|
|
return count;
|
|
}
|
|
|
|
static int dwc3_gadget_data_events_show(struct seq_file *s, void *unused)
|
|
{
|
|
unsigned long flags;
|
|
unsigned i;
|
|
|
|
read_lock_irqsave(&dbg_dwc3_data.lck, flags);
|
|
|
|
i = dbg_dwc3_data.idx;
|
|
if (strnlen(dbg_dwc3_data.buf[i], DBG_DATA_MSG))
|
|
seq_printf(s, "%s\n", dbg_dwc3_data.buf[i]);
|
|
for (dbg_inc(&i); i != dbg_dwc3_data.idx; dbg_inc(&i)) {
|
|
if (!strnlen(dbg_dwc3_data.buf[i], DBG_DATA_MSG))
|
|
continue;
|
|
seq_printf(s, "%s\n", dbg_dwc3_data.buf[i]);
|
|
}
|
|
|
|
read_unlock_irqrestore(&dbg_dwc3_data.lck, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dwc3_gadget_data_events_open(struct inode *inode, struct file *f)
|
|
{
|
|
return single_open(f, dwc3_gadget_data_events_show, inode->i_private);
|
|
}
|
|
|
|
const struct file_operations dwc3_gadget_dbg_data_fops = {
|
|
.open = dwc3_gadget_data_events_open,
|
|
.read = seq_read,
|
|
.write = dwc3_store_events,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
int __devinit 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;
|
|
|
|
file = debugfs_create_file("regdump", S_IRUGO, root, dwc,
|
|
&dwc3_regdump_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_mode_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_testmode_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
file = debugfs_create_file("link_state", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_link_state_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
file = debugfs_create_file("trbs", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_ep_trb_list_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
file = debugfs_create_file("requests", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_ep_req_list_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
file = debugfs_create_file("queued_reqs", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_ep_req_queued_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
file = debugfs_create_file("events", S_IRUGO | S_IWUSR, root,
|
|
dwc, &dwc3_gadget_dbg_data_fops);
|
|
if (!file) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
return 0;
|
|
|
|
err1:
|
|
debugfs_remove_recursive(root);
|
|
|
|
err0:
|
|
return ret;
|
|
}
|
|
|
|
void __devexit dwc3_debugfs_exit(struct dwc3 *dwc)
|
|
{
|
|
debugfs_remove_recursive(dwc->root);
|
|
dwc->root = NULL;
|
|
}
|