665 lines
16 KiB
C
665 lines
16 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/**
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* debug.h - DesignWare USB3 DRD Controller Debug Header
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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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#ifndef __DWC3_DEBUG_H
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#define __DWC3_DEBUG_H
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#include "core.h"
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/**
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* dwc3_gadget_ep_cmd_string - returns endpoint command string
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* @cmd: command code
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*/
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static inline const char *
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dwc3_gadget_ep_cmd_string(u8 cmd)
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{
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switch (cmd) {
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case DWC3_DEPCMD_DEPSTARTCFG:
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return "Start New Configuration";
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case DWC3_DEPCMD_ENDTRANSFER:
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return "End Transfer";
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case DWC3_DEPCMD_UPDATETRANSFER:
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return "Update Transfer";
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case DWC3_DEPCMD_STARTTRANSFER:
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return "Start Transfer";
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case DWC3_DEPCMD_CLEARSTALL:
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return "Clear Stall";
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case DWC3_DEPCMD_SETSTALL:
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return "Set Stall";
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case DWC3_DEPCMD_GETEPSTATE:
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return "Get Endpoint State";
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case DWC3_DEPCMD_SETTRANSFRESOURCE:
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return "Set Endpoint Transfer Resource";
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case DWC3_DEPCMD_SETEPCONFIG:
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return "Set Endpoint Configuration";
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default:
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return "UNKNOWN command";
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}
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}
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/**
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* dwc3_gadget_generic_cmd_string - returns generic command string
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* @cmd: command code
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*/
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static inline const char *
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dwc3_gadget_generic_cmd_string(u8 cmd)
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{
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switch (cmd) {
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case DWC3_DGCMD_SET_LMP:
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return "Set LMP";
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case DWC3_DGCMD_SET_PERIODIC_PAR:
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return "Set Periodic Parameters";
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case DWC3_DGCMD_XMIT_FUNCTION:
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return "Transmit Function Wake Device Notification";
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case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO:
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return "Set Scratchpad Buffer Array Address Lo";
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case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI:
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return "Set Scratchpad Buffer Array Address Hi";
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case DWC3_DGCMD_SELECTED_FIFO_FLUSH:
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return "Selected FIFO Flush";
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case DWC3_DGCMD_ALL_FIFO_FLUSH:
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return "All FIFO Flush";
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case DWC3_DGCMD_SET_ENDPOINT_NRDY:
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return "Set Endpoint NRDY";
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case DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK:
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return "Run SoC Bus Loopback Test";
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default:
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return "UNKNOWN";
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}
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}
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/**
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* dwc3_gadget_link_string - returns link name
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* @link_state: link state code
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*/
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static inline const char *
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dwc3_gadget_link_string(enum dwc3_link_state link_state)
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{
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switch (link_state) {
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case DWC3_LINK_STATE_U0:
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return "U0";
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case DWC3_LINK_STATE_U1:
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return "U1";
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case DWC3_LINK_STATE_U2:
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return "U2";
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case DWC3_LINK_STATE_U3:
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return "U3";
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case DWC3_LINK_STATE_SS_DIS:
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return "SS.Disabled";
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case DWC3_LINK_STATE_RX_DET:
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return "RX.Detect";
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case DWC3_LINK_STATE_SS_INACT:
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return "SS.Inactive";
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case DWC3_LINK_STATE_POLL:
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return "Polling";
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case DWC3_LINK_STATE_RECOV:
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return "Recovery";
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case DWC3_LINK_STATE_HRESET:
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return "Hot Reset";
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case DWC3_LINK_STATE_CMPLY:
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return "Compliance";
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case DWC3_LINK_STATE_LPBK:
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return "Loopback";
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case DWC3_LINK_STATE_RESET:
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return "Reset";
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case DWC3_LINK_STATE_RESUME:
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return "Resume";
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default:
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return "UNKNOWN link state\n";
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}
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}
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/**
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* dwc3_gadget_hs_link_string - returns highspeed and below link name
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* @link_state: link state code
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*/
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static inline const char *
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dwc3_gadget_hs_link_string(enum dwc3_link_state link_state)
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{
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switch (link_state) {
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case DWC3_LINK_STATE_U0:
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return "On";
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case DWC3_LINK_STATE_U2:
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return "Sleep";
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case DWC3_LINK_STATE_U3:
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return "Suspend";
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case DWC3_LINK_STATE_SS_DIS:
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return "Disconnected";
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case DWC3_LINK_STATE_RX_DET:
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return "Early Suspend";
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case DWC3_LINK_STATE_RECOV:
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return "Recovery";
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case DWC3_LINK_STATE_RESET:
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return "Reset";
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case DWC3_LINK_STATE_RESUME:
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return "Resume";
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default:
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return "UNKNOWN link state\n";
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}
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}
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/**
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* dwc3_trb_type_string - returns TRB type as a string
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* @type: the type of the TRB
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*/
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static inline const char *dwc3_trb_type_string(unsigned int type)
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{
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switch (type) {
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case DWC3_TRBCTL_NORMAL:
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return "normal";
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case DWC3_TRBCTL_CONTROL_SETUP:
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return "setup";
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case DWC3_TRBCTL_CONTROL_STATUS2:
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return "status2";
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case DWC3_TRBCTL_CONTROL_STATUS3:
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return "status3";
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case DWC3_TRBCTL_CONTROL_DATA:
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return "data";
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case DWC3_TRBCTL_ISOCHRONOUS_FIRST:
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return "isoc-first";
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case DWC3_TRBCTL_ISOCHRONOUS:
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return "isoc";
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case DWC3_TRBCTL_LINK_TRB:
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return "link";
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default:
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return "UNKNOWN";
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}
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}
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static inline const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
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{
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switch (state) {
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case EP0_UNCONNECTED:
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return "Unconnected";
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case EP0_SETUP_PHASE:
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return "Setup Phase";
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case EP0_DATA_PHASE:
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return "Data Phase";
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case EP0_STATUS_PHASE:
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return "Status Phase";
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default:
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return "UNKNOWN";
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}
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}
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/**
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* dwc3_gadget_event_string - returns event name
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* @event: the event code
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*/
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static inline const char *
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dwc3_gadget_event_string(char *str, const struct dwc3_event_devt *event)
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{
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enum dwc3_link_state state = event->event_info & DWC3_LINK_STATE_MASK;
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switch (event->type) {
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case DWC3_DEVICE_EVENT_DISCONNECT:
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sprintf(str, "Disconnect: [%s]",
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dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_RESET:
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sprintf(str, "Reset [%s]", dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_CONNECT_DONE:
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sprintf(str, "Connection Done [%s]",
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dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
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sprintf(str, "Link Change [%s]",
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dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_WAKEUP:
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sprintf(str, "WakeUp [%s]", dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_EOPF:
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sprintf(str, "End-Of-Frame [%s]",
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dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_SOF:
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sprintf(str, "Start-Of-Frame [%s]",
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dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
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sprintf(str, "Erratic Error [%s]",
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dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_CMD_CMPL:
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sprintf(str, "Command Complete [%s]",
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dwc3_gadget_link_string(state));
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break;
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case DWC3_DEVICE_EVENT_OVERFLOW:
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sprintf(str, "Overflow [%s]", dwc3_gadget_link_string(state));
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break;
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default:
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sprintf(str, "UNKNOWN");
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}
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return str;
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}
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static inline void dwc3_decode_get_status(__u8 t, __u16 i, __u16 l, char *str)
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{
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switch (t & USB_RECIP_MASK) {
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case USB_RECIP_INTERFACE:
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sprintf(str, "Get Interface Status(Intf = %d, Length = %d)",
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i, l);
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break;
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case USB_RECIP_ENDPOINT:
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sprintf(str, "Get Endpoint Status(ep%d%s)",
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i & ~USB_DIR_IN,
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i & USB_DIR_IN ? "in" : "out");
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break;
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}
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}
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static inline void dwc3_decode_set_clear_feature(__u8 t, __u8 b, __u16 v,
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__u16 i, char *str)
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{
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switch (t & USB_RECIP_MASK) {
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case USB_RECIP_DEVICE:
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sprintf(str, "%s Device Feature(%s%s)",
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b == USB_REQ_CLEAR_FEATURE ? "Clear" : "Set",
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({char *s;
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switch (v) {
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case USB_DEVICE_SELF_POWERED:
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s = "Self Powered";
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break;
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case USB_DEVICE_REMOTE_WAKEUP:
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s = "Remote Wakeup";
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break;
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case USB_DEVICE_TEST_MODE:
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s = "Test Mode";
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break;
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case USB_DEVICE_U1_ENABLE:
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s = "U1 Enable";
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break;
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case USB_DEVICE_U2_ENABLE:
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s = "U2 Enable";
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break;
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case USB_DEVICE_LTM_ENABLE:
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s = "LTM Enable";
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break;
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default:
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s = "UNKNOWN";
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} s; }),
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v == USB_DEVICE_TEST_MODE ?
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({ char *s;
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switch (i) {
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case TEST_J:
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s = ": TEST_J";
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break;
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case TEST_K:
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s = ": TEST_K";
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break;
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case TEST_SE0_NAK:
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s = ": TEST_SE0_NAK";
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break;
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case TEST_PACKET:
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s = ": TEST_PACKET";
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break;
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case TEST_FORCE_EN:
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s = ": TEST_FORCE_EN";
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break;
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default:
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s = ": UNKNOWN";
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} s; }) : "");
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break;
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case USB_RECIP_INTERFACE:
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sprintf(str, "%s Interface Feature(%s)",
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b == USB_REQ_CLEAR_FEATURE ? "Clear" : "Set",
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v == USB_INTRF_FUNC_SUSPEND ?
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"Function Suspend" : "UNKNOWN");
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break;
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case USB_RECIP_ENDPOINT:
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sprintf(str, "%s Endpoint Feature(%s ep%d%s)",
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b == USB_REQ_CLEAR_FEATURE ? "Clear" : "Set",
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v == USB_ENDPOINT_HALT ? "Halt" : "UNKNOWN",
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i & ~USB_DIR_IN,
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i & USB_DIR_IN ? "in" : "out");
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break;
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}
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}
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static inline void dwc3_decode_set_address(__u16 v, char *str)
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{
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sprintf(str, "Set Address(Addr = %02x)", v);
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}
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static inline void dwc3_decode_get_set_descriptor(__u8 t, __u8 b, __u16 v,
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__u16 i, __u16 l, char *str)
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{
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sprintf(str, "%s %s Descriptor(Index = %d, Length = %d)",
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b == USB_REQ_GET_DESCRIPTOR ? "Get" : "Set",
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({ char *s;
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switch (v >> 8) {
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case USB_DT_DEVICE:
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s = "Device";
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break;
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case USB_DT_CONFIG:
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s = "Configuration";
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break;
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case USB_DT_STRING:
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s = "String";
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break;
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case USB_DT_INTERFACE:
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s = "Interface";
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break;
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case USB_DT_ENDPOINT:
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s = "Endpoint";
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break;
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case USB_DT_DEVICE_QUALIFIER:
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s = "Device Qualifier";
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break;
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case USB_DT_OTHER_SPEED_CONFIG:
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s = "Other Speed Config";
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break;
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case USB_DT_INTERFACE_POWER:
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s = "Interface Power";
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break;
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case USB_DT_OTG:
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s = "OTG";
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break;
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case USB_DT_DEBUG:
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s = "Debug";
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break;
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case USB_DT_INTERFACE_ASSOCIATION:
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s = "Interface Association";
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break;
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case USB_DT_BOS:
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s = "BOS";
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break;
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case USB_DT_DEVICE_CAPABILITY:
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s = "Device Capability";
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break;
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case USB_DT_PIPE_USAGE:
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s = "Pipe Usage";
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break;
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case USB_DT_SS_ENDPOINT_COMP:
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s = "SS Endpoint Companion";
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break;
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case USB_DT_SSP_ISOC_ENDPOINT_COMP:
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s = "SSP Isochronous Endpoint Companion";
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break;
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default:
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s = "UNKNOWN";
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break;
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} s; }), v & 0xff, l);
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}
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static inline void dwc3_decode_get_configuration(__u16 l, char *str)
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{
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sprintf(str, "Get Configuration(Length = %d)", l);
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}
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static inline void dwc3_decode_set_configuration(__u8 v, char *str)
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{
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sprintf(str, "Set Configuration(Config = %d)", v);
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}
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static inline void dwc3_decode_get_intf(__u16 i, __u16 l, char *str)
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{
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sprintf(str, "Get Interface(Intf = %d, Length = %d)", i, l);
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}
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static inline void dwc3_decode_set_intf(__u8 v, __u16 i, char *str)
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{
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sprintf(str, "Set Interface(Intf = %d, Alt.Setting = %d)", i, v);
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}
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static inline void dwc3_decode_synch_frame(__u16 i, __u16 l, char *str)
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{
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sprintf(str, "Synch Frame(Endpoint = %d, Length = %d)", i, l);
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}
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static inline void dwc3_decode_set_sel(__u16 l, char *str)
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{
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sprintf(str, "Set SEL(Length = %d)", l);
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}
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static inline void dwc3_decode_set_isoch_delay(__u8 v, char *str)
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{
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sprintf(str, "Set Isochronous Delay(Delay = %d ns)", v);
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}
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/**
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* dwc3_decode_ctrl - returns a string represetion of ctrl request
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*/
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static inline const char *dwc3_decode_ctrl(char *str, __u8 bRequestType,
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__u8 bRequest, __u16 wValue, __u16 wIndex, __u16 wLength)
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{
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switch (bRequest) {
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case USB_REQ_GET_STATUS:
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dwc3_decode_get_status(bRequestType, wIndex, wLength, str);
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break;
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case USB_REQ_CLEAR_FEATURE:
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case USB_REQ_SET_FEATURE:
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dwc3_decode_set_clear_feature(bRequestType, bRequest, wValue,
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wIndex, str);
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break;
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case USB_REQ_SET_ADDRESS:
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dwc3_decode_set_address(wValue, str);
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break;
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case USB_REQ_GET_DESCRIPTOR:
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case USB_REQ_SET_DESCRIPTOR:
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dwc3_decode_get_set_descriptor(bRequestType, bRequest, wValue,
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wIndex, wLength, str);
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break;
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case USB_REQ_GET_CONFIGURATION:
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dwc3_decode_get_configuration(wLength, str);
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break;
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case USB_REQ_SET_CONFIGURATION:
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dwc3_decode_set_configuration(wValue, str);
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break;
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case USB_REQ_GET_INTERFACE:
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dwc3_decode_get_intf(wIndex, wLength, str);
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break;
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case USB_REQ_SET_INTERFACE:
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dwc3_decode_set_intf(wValue, wIndex, str);
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break;
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case USB_REQ_SYNCH_FRAME:
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dwc3_decode_synch_frame(wIndex, wLength, str);
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break;
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case USB_REQ_SET_SEL:
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dwc3_decode_set_sel(wLength, str);
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break;
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case USB_REQ_SET_ISOCH_DELAY:
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dwc3_decode_set_isoch_delay(wValue, str);
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break;
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default:
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sprintf(str, "%02x %02x %02x %02x %02x %02x %02x %02x",
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bRequestType, bRequest,
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cpu_to_le16(wValue) & 0xff,
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cpu_to_le16(wValue) >> 8,
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cpu_to_le16(wIndex) & 0xff,
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cpu_to_le16(wIndex) >> 8,
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cpu_to_le16(wLength) & 0xff,
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cpu_to_le16(wLength) >> 8);
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}
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return str;
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}
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/**
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* dwc3_ep_event_string - returns event name
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* @event: then event code
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*/
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static inline const char *
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dwc3_ep_event_string(char *str, const struct dwc3_event_depevt *event,
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u32 ep0state)
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{
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u8 epnum = event->endpoint_number;
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size_t len;
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int status;
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int ret;
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ret = sprintf(str, "ep%d%s: ", epnum >> 1,
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(epnum & 1) ? "in" : "out");
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if (ret < 0)
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return "UNKNOWN";
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status = event->status;
|
|
|
|
switch (event->endpoint_event) {
|
|
case DWC3_DEPEVT_XFERCOMPLETE:
|
|
len = strlen(str);
|
|
sprintf(str + len, "Transfer Complete (%c%c%c)",
|
|
status & DEPEVT_STATUS_SHORT ? 'S' : 's',
|
|
status & DEPEVT_STATUS_IOC ? 'I' : 'i',
|
|
status & DEPEVT_STATUS_LST ? 'L' : 'l');
|
|
|
|
len = strlen(str);
|
|
|
|
if (epnum <= 1)
|
|
sprintf(str + len, " [%s]", dwc3_ep0_state_string(ep0state));
|
|
break;
|
|
case DWC3_DEPEVT_XFERINPROGRESS:
|
|
len = strlen(str);
|
|
|
|
sprintf(str + len, "Transfer In Progress [%d] (%c%c%c)",
|
|
event->parameters,
|
|
status & DEPEVT_STATUS_SHORT ? 'S' : 's',
|
|
status & DEPEVT_STATUS_IOC ? 'I' : 'i',
|
|
status & DEPEVT_STATUS_LST ? 'M' : 'm');
|
|
break;
|
|
case DWC3_DEPEVT_XFERNOTREADY:
|
|
len = strlen(str);
|
|
|
|
sprintf(str + len, "Transfer Not Ready [%d]%s",
|
|
event->parameters,
|
|
status & DEPEVT_STATUS_TRANSFER_ACTIVE ?
|
|
" (Active)" : " (Not Active)");
|
|
|
|
/* Control Endpoints */
|
|
if (epnum <= 1) {
|
|
int phase = DEPEVT_STATUS_CONTROL_PHASE(event->status);
|
|
|
|
switch (phase) {
|
|
case DEPEVT_STATUS_CONTROL_DATA:
|
|
strcat(str, " [Data Phase]");
|
|
break;
|
|
case DEPEVT_STATUS_CONTROL_STATUS:
|
|
strcat(str, " [Status Phase]");
|
|
}
|
|
}
|
|
break;
|
|
case DWC3_DEPEVT_RXTXFIFOEVT:
|
|
strcat(str, "FIFO");
|
|
break;
|
|
case DWC3_DEPEVT_STREAMEVT:
|
|
status = event->status;
|
|
|
|
switch (status) {
|
|
case DEPEVT_STREAMEVT_FOUND:
|
|
sprintf(str + ret, " Stream %d Found",
|
|
event->parameters);
|
|
break;
|
|
case DEPEVT_STREAMEVT_NOTFOUND:
|
|
default:
|
|
strcat(str, " Stream Not Found");
|
|
break;
|
|
}
|
|
|
|
break;
|
|
case DWC3_DEPEVT_EPCMDCMPLT:
|
|
strcat(str, "Endpoint Command Complete");
|
|
break;
|
|
default:
|
|
sprintf(str, "UNKNOWN");
|
|
}
|
|
|
|
return str;
|
|
}
|
|
|
|
/**
|
|
* dwc3_gadget_event_type_string - return event name
|
|
* @event: the event code
|
|
*/
|
|
static inline const char *dwc3_gadget_event_type_string(u8 event)
|
|
{
|
|
switch (event) {
|
|
case DWC3_DEVICE_EVENT_DISCONNECT:
|
|
return "Disconnect";
|
|
case DWC3_DEVICE_EVENT_RESET:
|
|
return "Reset";
|
|
case DWC3_DEVICE_EVENT_CONNECT_DONE:
|
|
return "Connect Done";
|
|
case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
|
|
return "Link Status Change";
|
|
case DWC3_DEVICE_EVENT_WAKEUP:
|
|
return "Wake-Up";
|
|
case DWC3_DEVICE_EVENT_HIBER_REQ:
|
|
return "Hibernation";
|
|
case DWC3_DEVICE_EVENT_EOPF:
|
|
return "End of Periodic Frame";
|
|
case DWC3_DEVICE_EVENT_SOF:
|
|
return "Start of Frame";
|
|
case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
|
|
return "Erratic Error";
|
|
case DWC3_DEVICE_EVENT_CMD_CMPL:
|
|
return "Command Complete";
|
|
case DWC3_DEVICE_EVENT_OVERFLOW:
|
|
return "Overflow";
|
|
default:
|
|
return "UNKNOWN";
|
|
}
|
|
}
|
|
|
|
static inline const char *dwc3_decode_event(char *str, u32 event, u32 ep0state)
|
|
{
|
|
const union dwc3_event evt = (union dwc3_event) event;
|
|
|
|
if (evt.type.is_devspec)
|
|
return dwc3_gadget_event_string(str, &evt.devt);
|
|
else
|
|
return dwc3_ep_event_string(str, &evt.depevt, ep0state);
|
|
}
|
|
|
|
static inline const char *dwc3_ep_cmd_status_string(int status)
|
|
{
|
|
switch (status) {
|
|
case -ETIMEDOUT:
|
|
return "Timed Out";
|
|
case 0:
|
|
return "Successful";
|
|
case DEPEVT_TRANSFER_NO_RESOURCE:
|
|
return "No Resource";
|
|
case DEPEVT_TRANSFER_BUS_EXPIRY:
|
|
return "Bus Expiry";
|
|
default:
|
|
return "UNKNOWN";
|
|
}
|
|
}
|
|
|
|
static inline const char *dwc3_gadget_generic_cmd_status_string(int status)
|
|
{
|
|
switch (status) {
|
|
case -ETIMEDOUT:
|
|
return "Timed Out";
|
|
case 0:
|
|
return "Successful";
|
|
case 1:
|
|
return "Error";
|
|
default:
|
|
return "UNKNOWN";
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
extern void dwc3_debugfs_init(struct dwc3 *);
|
|
extern void dwc3_debugfs_exit(struct dwc3 *);
|
|
#else
|
|
static inline void dwc3_debugfs_init(struct dwc3 *d)
|
|
{ }
|
|
static inline void dwc3_debugfs_exit(struct dwc3 *d)
|
|
{ }
|
|
#endif
|
|
#endif /* __DWC3_DEBUG_H */
|