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535c8dc5c4
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Felipe Balbi <balbi@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
773 lines
19 KiB
C
773 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/**
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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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#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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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(GDBGBMU),
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dump_register(GDBGLSPMUX),
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dump_register(GDBGLSP),
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dump_register(GDBGEPINFO0),
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dump_register(GDBGEPINFO1),
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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_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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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 (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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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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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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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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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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return 0;
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}
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static int dwc3_testmode_open(struct inode *inode, struct file *file)
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{
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return single_open(file, dwc3_testmode_show, inode->i_private);
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}
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static ssize_t dwc3_testmode_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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unsigned long flags;
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u32 testmode = 0;
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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;
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if (!strncmp(buf, "test_j", 6))
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testmode = TEST_J;
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else if (!strncmp(buf, "test_k", 6))
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testmode = TEST_K;
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else if (!strncmp(buf, "test_se0_nak", 12))
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testmode = TEST_SE0_NAK;
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else if (!strncmp(buf, "test_packet", 11))
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testmode = TEST_PACKET;
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else if (!strncmp(buf, "test_force_enable", 17))
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testmode = TEST_FORCE_EN;
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else
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testmode = 0;
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spin_lock_irqsave(&dwc->lock, flags);
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dwc3_gadget_set_test_mode(dwc, testmode);
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spin_unlock_irqrestore(&dwc->lock, flags);
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return count;
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}
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static const struct file_operations dwc3_testmode_fops = {
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.open = dwc3_testmode_open,
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.write = dwc3_testmode_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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static int dwc3_link_state_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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enum dwc3_link_state state;
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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_DSTS);
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state = DWC3_DSTS_USBLNKST(reg);
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spin_unlock_irqrestore(&dwc->lock, flags);
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seq_printf(s, "%s\n", dwc3_gadget_link_string(state));
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return 0;
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}
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static int dwc3_link_state_open(struct inode *inode, struct file *file)
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{
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return single_open(file, dwc3_link_state_show, inode->i_private);
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}
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static ssize_t dwc3_link_state_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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unsigned long flags;
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enum dwc3_link_state state = 0;
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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;
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|
|
|
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,
|
|
};
|
|
|
|
struct dwc3_ep_file_map {
|
|
const char name[25];
|
|
const struct file_operations *const fops;
|
|
};
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
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_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_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;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_tx_fifo_queue);
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_rx_fifo_queue);
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_tx_request_queue);
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_rx_request_queue);
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_rx_info_queue);
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_descriptor_fetch_queue);
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_event_queue);
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_transfer_type);
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_trb_ring);
|
|
|
|
static const struct dwc3_ep_file_map dwc3_ep_file_map[] = {
|
|
{ "tx_fifo_queue", &dwc3_tx_fifo_queue_fops, },
|
|
{ "rx_fifo_queue", &dwc3_rx_fifo_queue_fops, },
|
|
{ "tx_request_queue", &dwc3_tx_request_queue_fops, },
|
|
{ "rx_request_queue", &dwc3_rx_request_queue_fops, },
|
|
{ "rx_info_queue", &dwc3_rx_info_queue_fops, },
|
|
{ "descriptor_fetch_queue", &dwc3_descriptor_fetch_queue_fops, },
|
|
{ "event_queue", &dwc3_event_queue_fops, },
|
|
{ "transfer_type", &dwc3_transfer_type_fops, },
|
|
{ "trb_ring", &dwc3_trb_ring_fops, },
|
|
};
|
|
|
|
static void dwc3_debugfs_create_endpoint_files(struct dwc3_ep *dep,
|
|
struct dentry *parent)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(dwc3_ep_file_map); i++) {
|
|
const struct file_operations *fops = dwc3_ep_file_map[i].fops;
|
|
const char *name = dwc3_ep_file_map[i].name;
|
|
|
|
debugfs_create_file(name, S_IRUGO, parent, dep, fops);
|
|
}
|
|
}
|
|
|
|
static void dwc3_debugfs_create_endpoint_dir(struct dwc3_ep *dep,
|
|
struct dentry *parent)
|
|
{
|
|
struct dentry *dir;
|
|
|
|
dir = debugfs_create_dir(dep->name, parent);
|
|
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);
|
|
}
|
|
}
|
|
|
|
void dwc3_debugfs_init(struct dwc3 *dwc)
|
|
{
|
|
struct dentry *root;
|
|
|
|
dwc->regset = kzalloc(sizeof(*dwc->regset), GFP_KERNEL);
|
|
if (!dwc->regset)
|
|
return;
|
|
|
|
dwc->regset->regs = dwc3_regs;
|
|
dwc->regset->nregs = ARRAY_SIZE(dwc3_regs);
|
|
dwc->regset->base = dwc->regs - DWC3_GLOBALS_REGS_START;
|
|
|
|
root = debugfs_create_dir(dev_name(dwc->dev), NULL);
|
|
dwc->root = root;
|
|
|
|
debugfs_create_regset32("regdump", S_IRUGO, root, dwc->regset);
|
|
|
|
if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) {
|
|
debugfs_create_file("mode", S_IRUGO | S_IWUSR, root, dwc,
|
|
&dwc3_mode_fops);
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) ||
|
|
IS_ENABLED(CONFIG_USB_DWC3_GADGET)) {
|
|
debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root, dwc,
|
|
&dwc3_testmode_fops);
|
|
debugfs_create_file("link_state", S_IRUGO | S_IWUSR, root, dwc,
|
|
&dwc3_link_state_fops);
|
|
dwc3_debugfs_create_endpoint_dirs(dwc, root);
|
|
}
|
|
}
|
|
|
|
void dwc3_debugfs_exit(struct dwc3 *dwc)
|
|
{
|
|
debugfs_remove_recursive(dwc->root);
|
|
kfree(dwc->regset);
|
|
}
|