/**
* debug.h - DesignWare USB3 DRD Controller Debug Header
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 of
* the License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __DWC3_DEBUG_H
#define __DWC3_DEBUG_H
#include "core.h"
/**
* dwc3_gadget_ep_cmd_string - returns endpoint command string
* @cmd: command code
*/
static inline const char *
dwc3_gadget_ep_cmd_string(u8 cmd)
{
switch (cmd) {
case DWC3_DEPCMD_DEPSTARTCFG:
return "Start New Configuration";
case DWC3_DEPCMD_ENDTRANSFER:
return "End Transfer";
case DWC3_DEPCMD_UPDATETRANSFER:
return "Update Transfer";
case DWC3_DEPCMD_STARTTRANSFER:
return "Start Transfer";
case DWC3_DEPCMD_CLEARSTALL:
return "Clear Stall";
case DWC3_DEPCMD_SETSTALL:
return "Set Stall";
case DWC3_DEPCMD_GETEPSTATE:
return "Get Endpoint State";
case DWC3_DEPCMD_SETTRANSFRESOURCE:
return "Set Endpoint Transfer Resource";
case DWC3_DEPCMD_SETEPCONFIG:
return "Set Endpoint Configuration";
default:
return "UNKNOWN command";
}
}
/**
* dwc3_gadget_generic_cmd_string - returns generic command string
* @cmd: command code
*/
static inline const char *
dwc3_gadget_generic_cmd_string(u8 cmd)
{
switch (cmd) {
case DWC3_DGCMD_SET_LMP:
return "Set LMP";
case DWC3_DGCMD_SET_PERIODIC_PAR:
return "Set Periodic Parameters";
case DWC3_DGCMD_XMIT_FUNCTION:
return "Transmit Function Wake Device Notification";
case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO:
return "Set Scratchpad Buffer Array Address Lo";
case DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI:
return "Set Scratchpad Buffer Array Address Hi";
case DWC3_DGCMD_SELECTED_FIFO_FLUSH:
return "Selected FIFO Flush";
case DWC3_DGCMD_ALL_FIFO_FLUSH:
return "All FIFO Flush";
case DWC3_DGCMD_SET_ENDPOINT_NRDY:
return "Set Endpoint NRDY";
case DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK:
return "Run SoC Bus Loopback Test";
default:
return "UNKNOWN";
}
}
/**
* dwc3_gadget_link_string - returns link name
* @link_state: link state code
*/
static inline const char *
dwc3_gadget_link_string(enum dwc3_link_state link_state)
{
switch (link_state) {
case DWC3_LINK_STATE_U0:
return "U0";
case DWC3_LINK_STATE_U1:
return "U1";
case DWC3_LINK_STATE_U2:
return "U2";
case DWC3_LINK_STATE_U3:
return "U3";
case DWC3_LINK_STATE_SS_DIS:
return "SS.Disabled";
case DWC3_LINK_STATE_RX_DET:
return "RX.Detect";
case DWC3_LINK_STATE_SS_INACT:
return "SS.Inactive";
case DWC3_LINK_STATE_POLL:
return "Polling";
case DWC3_LINK_STATE_RECOV:
return "Recovery";
case DWC3_LINK_STATE_HRESET:
return "Hot Reset";
case DWC3_LINK_STATE_CMPLY:
return "Compliance";
case DWC3_LINK_STATE_LPBK:
return "Loopback";
case DWC3_LINK_STATE_RESET:
return "Reset";
case DWC3_LINK_STATE_RESUME:
return "Resume";
default:
return "UNKNOWN link state\n";
}
}
static inline const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
{
switch (state) {
case EP0_UNCONNECTED:
return "Unconnected";
case EP0_SETUP_PHASE:
return "Setup Phase";
case EP0_DATA_PHASE:
return "Data Phase";
case EP0_STATUS_PHASE:
return "Status Phase";
default:
return "UNKNOWN";
}
}
/**
* dwc3_gadget_event_string - returns event name
* @event: the event code
*/
static inline const char *
dwc3_gadget_event_string(const struct dwc3_event_devt *event)
{
static char str[256];
enum dwc3_link_state state = event->event_info & DWC3_LINK_STATE_MASK;
switch (event->type) {
case DWC3_DEVICE_EVENT_DISCONNECT:
sprintf(str, "Disconnect: [%s]",
dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_RESET:
sprintf(str, "Reset [%s]", dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_CONNECT_DONE:
sprintf(str, "Connection Done [%s]",
dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE:
sprintf(str, "Link Change [%s]",
dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_WAKEUP:
sprintf(str, "WakeUp [%s]", dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_EOPF:
sprintf(str, "End-Of-Frame [%s]",
dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_SOF:
sprintf(str, "Start-Of-Frame [%s]",
dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_ERRATIC_ERROR:
sprintf(str, "Erratic Error [%s]",
dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_CMD_CMPL:
sprintf(str, "Command Complete [%s]",
dwc3_gadget_link_string(state));
break;
case DWC3_DEVICE_EVENT_OVERFLOW:
sprintf(str, "Overflow [%s]", dwc3_gadget_link_string(state));
break;
default:
sprintf(str, "UNKNOWN");
}
return str;
}
/**
* dwc3_ep_event_string - returns event name
* @event: then event code
*/
static inline const char *
dwc3_ep_event_string(const struct dwc3_event_depevt *event, u32 ep0state)
{
u8 epnum = event->endpoint_number;
static char str[256];
size_t len;
int status;
int ret;
ret = sprintf(str, "ep%d%s: ", epnum >> 1,
(epnum & 1) ? "in" : "out");
if (ret < 0)
return "UNKNOWN";
switch (event->endpoint_event) {
case DWC3_DEPEVT_XFERCOMPLETE:
strcat(str, "Transfer Complete");
len = strlen(str);
if (epnum <= 1)
sprintf(str + len, " [%s]", dwc3_ep0_state_string(ep0state));
break;
case DWC3_DEPEVT_XFERINPROGRESS:
strcat(str, "Transfer In-Progress");
break;
case DWC3_DEPEVT_XFERNOTREADY:
strcat(str, "Transfer Not Ready");
status = event->status & DEPEVT_STATUS_TRANSFER_ACTIVE;
strcat(str, status ? " (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(u32 event, u32 ep0state)
{
const union dwc3_event evt = (union dwc3_event) event;
if (evt.type.is_devspec)
return dwc3_gadget_event_string(&evt.devt);
else
return dwc3_ep_event_string(&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 [31mCONFIG_DEBUG_FS[0m
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 */