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955 lines
24 KiB
955 lines
24 KiB
// 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 - https://www.ti.com |
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* |
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* Authors: Felipe Balbi <[email protected]>, |
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* Sebastian Andrzej Siewior <[email protected]> |
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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 DWC3_LSP_MUX_UNSELECTED 0xfffff |
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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(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 void dwc3_host_lsp(struct seq_file *s) |
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{ |
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struct dwc3 *dwc = s->private; |
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bool dbc_enabled; |
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u32 sel; |
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u32 reg; |
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u32 val; |
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dbc_enabled = !!(dwc->hwparams.hwparams1 & DWC3_GHWPARAMS1_ENDBC); |
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sel = dwc->dbg_lsp_select; |
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if (sel == DWC3_LSP_MUX_UNSELECTED) { |
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seq_puts(s, "Write LSP selection to print for host\n"); |
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return; |
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} |
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reg = DWC3_GDBGLSPMUX_HOSTSELECT(sel); |
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dwc3_writel(dwc->regs, DWC3_GDBGLSPMUX, reg); |
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val = dwc3_readl(dwc->regs, DWC3_GDBGLSP); |
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seq_printf(s, "GDBGLSP[%d] = 0x%08x\n", sel, val); |
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if (dbc_enabled && sel < 256) { |
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reg |= DWC3_GDBGLSPMUX_ENDBC; |
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dwc3_writel(dwc->regs, DWC3_GDBGLSPMUX, reg); |
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val = dwc3_readl(dwc->regs, DWC3_GDBGLSP); |
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seq_printf(s, "GDBGLSP_DBC[%d] = 0x%08x\n", sel, val); |
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} |
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} |
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static void dwc3_gadget_lsp(struct seq_file *s) |
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{ |
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struct dwc3 *dwc = s->private; |
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int i; |
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u32 reg; |
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for (i = 0; i < 16; i++) { |
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reg = DWC3_GDBGLSPMUX_DEVSELECT(i); |
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dwc3_writel(dwc->regs, DWC3_GDBGLSPMUX, reg); |
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reg = dwc3_readl(dwc->regs, DWC3_GDBGLSP); |
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seq_printf(s, "GDBGLSP[%d] = 0x%08x\n", i, reg); |
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} |
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} |
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static int dwc3_lsp_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 int current_mode; |
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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_GSTS); |
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current_mode = DWC3_GSTS_CURMOD(reg); |
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switch (current_mode) { |
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case DWC3_GSTS_CURMOD_HOST: |
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dwc3_host_lsp(s); |
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break; |
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case DWC3_GSTS_CURMOD_DEVICE: |
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dwc3_gadget_lsp(s); |
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break; |
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default: |
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seq_puts(s, "Mode is unknown, no LSP register printed\n"); |
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break; |
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} |
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spin_unlock_irqrestore(&dwc->lock, flags); |
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return 0; |
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} |
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static int dwc3_lsp_open(struct inode *inode, struct file *file) |
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{ |
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return single_open(file, dwc3_lsp_show, inode->i_private); |
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} |
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static ssize_t dwc3_lsp_write(struct file *file, const char __user *ubuf, |
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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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char buf[32] = { 0 }; |
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u32 sel; |
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int ret; |
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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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ret = kstrtouint(buf, 0, &sel); |
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if (ret) |
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return ret; |
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spin_lock_irqsave(&dwc->lock, flags); |
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dwc->dbg_lsp_select = sel; |
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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_lsp_fops = { |
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.open = dwc3_lsp_open, |
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.write = dwc3_lsp_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_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_puts(s, "host\n"); |
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break; |
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case DWC3_GCTL_PRTCAP_DEVICE: |
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seq_puts(s, "device\n"); |
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break; |
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case DWC3_GCTL_PRTCAP_OTG: |
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seq_puts(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 (dwc->dr_mode != USB_DR_MODE_OTG) |
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return count; |
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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_puts(s, "no test\n"); |
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break; |
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case USB_TEST_J: |
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seq_puts(s, "test_j\n"); |
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break; |
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case USB_TEST_K: |
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seq_puts(s, "test_k\n"); |
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break; |
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case USB_TEST_SE0_NAK: |
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seq_puts(s, "test_se0_nak\n"); |
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break; |
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case USB_TEST_PACKET: |
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seq_puts(s, "test_packet\n"); |
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break; |
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case USB_TEST_FORCE_ENABLE: |
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seq_puts(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 = USB_TEST_J; |
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else if (!strncmp(buf, "test_k", 6)) |
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testmode = USB_TEST_K; |
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else if (!strncmp(buf, "test_se0_nak", 12)) |
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testmode = USB_TEST_SE0_NAK; |
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else if (!strncmp(buf, "test_packet", 11)) |
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testmode = USB_TEST_PACKET; |
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else if (!strncmp(buf, "test_force_enable", 17)) |
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testmode = USB_TEST_FORCE_ENABLE; |
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else |
|
testmode = 0; |
|
|
|
spin_lock_irqsave(&dwc->lock, flags); |
|
dwc3_gadget_set_test_mode(dwc, testmode); |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
|
|
return count; |
|
} |
|
|
|
static const struct file_operations dwc3_testmode_fops = { |
|
.open = dwc3_testmode_open, |
|
.write = dwc3_testmode_write, |
|
.read = seq_read, |
|
.llseek = seq_lseek, |
|
.release = single_release, |
|
}; |
|
|
|
static int dwc3_link_state_show(struct seq_file *s, void *unused) |
|
{ |
|
struct dwc3 *dwc = s->private; |
|
unsigned long flags; |
|
enum dwc3_link_state state; |
|
u32 reg; |
|
u8 speed; |
|
|
|
spin_lock_irqsave(&dwc->lock, flags); |
|
reg = dwc3_readl(dwc->regs, DWC3_GSTS); |
|
if (DWC3_GSTS_CURMOD(reg) != DWC3_GSTS_CURMOD_DEVICE) { |
|
seq_puts(s, "Not available\n"); |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
return 0; |
|
} |
|
|
|
reg = dwc3_readl(dwc->regs, DWC3_DSTS); |
|
state = DWC3_DSTS_USBLNKST(reg); |
|
speed = reg & DWC3_DSTS_CONNECTSPD; |
|
|
|
seq_printf(s, "%s\n", (speed >= DWC3_DSTS_SUPERSPEED) ? |
|
dwc3_gadget_link_string(state) : |
|
dwc3_gadget_hs_link_string(state)); |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
|
|
return 0; |
|
} |
|
|
|
static int dwc3_link_state_open(struct inode *inode, struct file *file) |
|
{ |
|
return single_open(file, dwc3_link_state_show, inode->i_private); |
|
} |
|
|
|
static ssize_t dwc3_link_state_write(struct file *file, |
|
const char __user *ubuf, size_t count, loff_t *ppos) |
|
{ |
|
struct seq_file *s = file->private_data; |
|
struct dwc3 *dwc = s->private; |
|
unsigned long flags; |
|
enum dwc3_link_state state = 0; |
|
char buf[32]; |
|
u32 reg; |
|
u8 speed; |
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) |
|
return -EFAULT; |
|
|
|
if (!strncmp(buf, "SS.Disabled", 11)) |
|
state = DWC3_LINK_STATE_SS_DIS; |
|
else if (!strncmp(buf, "Rx.Detect", 9)) |
|
state = DWC3_LINK_STATE_RX_DET; |
|
else if (!strncmp(buf, "SS.Inactive", 11)) |
|
state = DWC3_LINK_STATE_SS_INACT; |
|
else if (!strncmp(buf, "Recovery", 8)) |
|
state = DWC3_LINK_STATE_RECOV; |
|
else if (!strncmp(buf, "Compliance", 10)) |
|
state = DWC3_LINK_STATE_CMPLY; |
|
else if (!strncmp(buf, "Loopback", 8)) |
|
state = DWC3_LINK_STATE_LPBK; |
|
else |
|
return -EINVAL; |
|
|
|
spin_lock_irqsave(&dwc->lock, flags); |
|
reg = dwc3_readl(dwc->regs, DWC3_GSTS); |
|
if (DWC3_GSTS_CURMOD(reg) != DWC3_GSTS_CURMOD_DEVICE) { |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
return -EINVAL; |
|
} |
|
|
|
reg = dwc3_readl(dwc->regs, DWC3_DSTS); |
|
speed = reg & DWC3_DSTS_CONNECTSPD; |
|
|
|
if (speed < DWC3_DSTS_SUPERSPEED && |
|
state != DWC3_LINK_STATE_RECOV) { |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
return -EINVAL; |
|
} |
|
|
|
dwc3_gadget_set_link_state(dwc, state); |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
|
|
return count; |
|
} |
|
|
|
static const struct file_operations dwc3_link_state_fops = { |
|
.open = dwc3_link_state_open, |
|
.write = dwc3_link_state_write, |
|
.read = seq_read, |
|
.llseek = seq_lseek, |
|
.release = single_release, |
|
}; |
|
|
|
struct dwc3_ep_file_map { |
|
const char name[25]; |
|
const struct file_operations *const fops; |
|
}; |
|
|
|
static int dwc3_tx_fifo_size_show(struct seq_file *s, void *unused) |
|
{ |
|
struct dwc3_ep *dep = s->private; |
|
struct dwc3 *dwc = dep->dwc; |
|
unsigned long flags; |
|
int mdwidth; |
|
u32 val; |
|
|
|
spin_lock_irqsave(&dwc->lock, flags); |
|
val = dwc3_core_fifo_space(dep, DWC3_TXFIFO); |
|
|
|
/* Convert to bytes */ |
|
mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0); |
|
if (DWC3_IP_IS(DWC32)) |
|
mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6); |
|
|
|
val *= mdwidth; |
|
val >>= 3; |
|
seq_printf(s, "%u\n", val); |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
|
|
return 0; |
|
} |
|
|
|
static int dwc3_rx_fifo_size_show(struct seq_file *s, void *unused) |
|
{ |
|
struct dwc3_ep *dep = s->private; |
|
struct dwc3 *dwc = dep->dwc; |
|
unsigned long flags; |
|
int mdwidth; |
|
u32 val; |
|
|
|
spin_lock_irqsave(&dwc->lock, flags); |
|
val = dwc3_core_fifo_space(dep, DWC3_RXFIFO); |
|
|
|
/* Convert to bytes */ |
|
mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0); |
|
if (DWC3_IP_IS(DWC32)) |
|
mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6); |
|
|
|
val *= mdwidth; |
|
val >>= 3; |
|
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_puts(s, "--\n"); |
|
goto out; |
|
} |
|
|
|
switch (usb_endpoint_type(dep->endpoint.desc)) { |
|
case USB_ENDPOINT_XFER_CONTROL: |
|
seq_puts(s, "control\n"); |
|
break; |
|
case USB_ENDPOINT_XFER_ISOC: |
|
seq_puts(s, "isochronous\n"); |
|
break; |
|
case USB_ENDPOINT_XFER_BULK: |
|
seq_puts(s, "bulk\n"); |
|
break; |
|
case USB_ENDPOINT_XFER_INT: |
|
seq_puts(s, "interrupt\n"); |
|
break; |
|
default: |
|
seq_puts(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_puts(s, "--\n"); |
|
goto out; |
|
} |
|
|
|
seq_puts(s, "buffer_addr,size,type,ioc,isp_imi,csp,chn,lst,hwo\n"); |
|
|
|
for (i = 0; i < DWC3_TRB_NUM; i++) { |
|
struct dwc3_trb *trb = &dep->trb_pool[i]; |
|
unsigned int type = DWC3_TRBCTL_TYPE(trb->ctrl); |
|
|
|
seq_printf(s, "%08x%08x,%d,%s,%d,%d,%d,%d,%d,%d %c%c\n", |
|
trb->bph, trb->bpl, trb->size, |
|
dwc3_trb_type_string(type), |
|
!!(trb->ctrl & DWC3_TRB_CTRL_IOC), |
|
!!(trb->ctrl & DWC3_TRB_CTRL_ISP_IMI), |
|
!!(trb->ctrl & DWC3_TRB_CTRL_CSP), |
|
!!(trb->ctrl & DWC3_TRB_CTRL_CHN), |
|
!!(trb->ctrl & DWC3_TRB_CTRL_LST), |
|
!!(trb->ctrl & DWC3_TRB_CTRL_HWO), |
|
dep->trb_enqueue == i ? 'E' : ' ', |
|
dep->trb_dequeue == i ? 'D' : ' '); |
|
} |
|
|
|
out: |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
|
|
return 0; |
|
} |
|
|
|
static int dwc3_ep_info_register_show(struct seq_file *s, void *unused) |
|
{ |
|
struct dwc3_ep *dep = s->private; |
|
struct dwc3 *dwc = dep->dwc; |
|
unsigned long flags; |
|
u64 ep_info; |
|
u32 lower_32_bits; |
|
u32 upper_32_bits; |
|
u32 reg; |
|
|
|
spin_lock_irqsave(&dwc->lock, flags); |
|
reg = DWC3_GDBGLSPMUX_EPSELECT(dep->number); |
|
dwc3_writel(dwc->regs, DWC3_GDBGLSPMUX, reg); |
|
|
|
lower_32_bits = dwc3_readl(dwc->regs, DWC3_GDBGEPINFO0); |
|
upper_32_bits = dwc3_readl(dwc->regs, DWC3_GDBGEPINFO1); |
|
|
|
ep_info = ((u64)upper_32_bits << 32) | lower_32_bits; |
|
seq_printf(s, "0x%016llx\n", ep_info); |
|
spin_unlock_irqrestore(&dwc->lock, flags); |
|
|
|
return 0; |
|
} |
|
|
|
DEFINE_SHOW_ATTRIBUTE(dwc3_tx_fifo_size); |
|
DEFINE_SHOW_ATTRIBUTE(dwc3_rx_fifo_size); |
|
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); |
|
DEFINE_SHOW_ATTRIBUTE(dwc3_ep_info_register); |
|
|
|
static const struct dwc3_ep_file_map dwc3_ep_file_map[] = { |
|
{ "tx_fifo_size", &dwc3_tx_fifo_size_fops, }, |
|
{ "rx_fifo_size", &dwc3_rx_fifo_size_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, }, |
|
{ "GDBGEPINFO", &dwc3_ep_info_register_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, 0444, 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->dbg_lsp_select = DWC3_LSP_MUX_UNSELECTED; |
|
|
|
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), usb_debug_root); |
|
dwc->root = root; |
|
|
|
debugfs_create_regset32("regdump", 0444, root, dwc->regset); |
|
debugfs_create_file("lsp_dump", 0644, root, dwc, &dwc3_lsp_fops); |
|
|
|
if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) |
|
debugfs_create_file("mode", 0644, root, dwc, |
|
&dwc3_mode_fops); |
|
|
|
if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) || |
|
IS_ENABLED(CONFIG_USB_DWC3_GADGET)) { |
|
debugfs_create_file("testmode", 0644, root, dwc, |
|
&dwc3_testmode_fops); |
|
debugfs_create_file("link_state", 0644, 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); |
|
}
|
|
|