/* SPDX-License-Identifier: GPL-2.0 */
/*
* Cadence CDNSP DRD Driver.
*
* Copyright (C) 2020 Cadence.
*
* Author: Pawel Laszczak <[email protected]>
*
*/
#ifndef __LINUX_CDNSP_DEBUG
#define __LINUX_CDNSP_DEBUG
static inline const char *cdnsp_trb_comp_code_string(u8 status)
{
switch (status) {
case COMP_INVALID:
return "Invalid";
case COMP_SUCCESS:
return "Success";
case COMP_DATA_BUFFER_ERROR:
return "Data Buffer Error";
case COMP_BABBLE_DETECTED_ERROR:
return "Babble Detected";
case COMP_TRB_ERROR:
return "TRB Error";
case COMP_RESOURCE_ERROR:
return "Resource Error";
case COMP_NO_SLOTS_AVAILABLE_ERROR:
return "No Slots Available Error";
case COMP_INVALID_STREAM_TYPE_ERROR:
return "Invalid Stream Type Error";
case COMP_SLOT_NOT_ENABLED_ERROR:
return "Slot Not Enabled Error";
case COMP_ENDPOINT_NOT_ENABLED_ERROR:
return "Endpoint Not Enabled Error";
case COMP_SHORT_PACKET:
return "Short Packet";
case COMP_RING_UNDERRUN:
return "Ring Underrun";
case COMP_RING_OVERRUN:
return "Ring Overrun";
case COMP_VF_EVENT_RING_FULL_ERROR:
return "VF Event Ring Full Error";
case COMP_PARAMETER_ERROR:
return "Parameter Error";
case COMP_CONTEXT_STATE_ERROR:
return "Context State Error";
case COMP_EVENT_RING_FULL_ERROR:
return "Event Ring Full Error";
case COMP_INCOMPATIBLE_DEVICE_ERROR:
return "Incompatible Device Error";
case COMP_MISSED_SERVICE_ERROR:
return "Missed Service Error";
case COMP_COMMAND_RING_STOPPED:
return "Command Ring Stopped";
case COMP_COMMAND_ABORTED:
return "Command Aborted";
case COMP_STOPPED:
return "Stopped";
case COMP_STOPPED_LENGTH_INVALID:
return "Stopped - Length Invalid";
case COMP_STOPPED_SHORT_PACKET:
return "Stopped - Short Packet";
case COMP_MAX_EXIT_LATENCY_TOO_LARGE_ERROR:
return "Max Exit Latency Too Large Error";
case COMP_ISOCH_BUFFER_OVERRUN:
return "Isoch Buffer Overrun";
case COMP_EVENT_LOST_ERROR:
return "Event Lost Error";
case COMP_UNDEFINED_ERROR:
return "Undefined Error";
case COMP_INVALID_STREAM_ID_ERROR:
return "Invalid Stream ID Error";
default:
return "Unknown!!";
}
}
static inline const char *cdnsp_trb_type_string(u8 type)
{
switch (type) {
case TRB_NORMAL:
return "Normal";
case TRB_SETUP:
return "Setup Stage";
case TRB_DATA:
return "Data Stage";
case TRB_STATUS:
return "Status Stage";
case TRB_ISOC:
return "Isoch";
case TRB_LINK:
return "Link";
case TRB_EVENT_DATA:
return "Event Data";
case TRB_TR_NOOP:
return "No-Op";
case TRB_ENABLE_SLOT:
return "Enable Slot Command";
case TRB_DISABLE_SLOT:
return "Disable Slot Command";
case TRB_ADDR_DEV:
return "Address Device Command";
case TRB_CONFIG_EP:
return "Configure Endpoint Command";
case TRB_EVAL_CONTEXT:
return "Evaluate Context Command";
case TRB_RESET_EP:
return "Reset Endpoint Command";
case TRB_STOP_RING:
return "Stop Ring Command";
case TRB_SET_DEQ:
return "Set TR Dequeue Pointer Command";
case TRB_RESET_DEV:
return "Reset Device Command";
case TRB_FORCE_HEADER:
return "Force Header Command";
case TRB_CMD_NOOP:
return "No-Op Command";
case TRB_TRANSFER:
return "Transfer Event";
case TRB_COMPLETION:
return "Command Completion Event";
case TRB_PORT_STATUS:
return "Port Status Change Event";
case TRB_HC_EVENT:
return "Device Controller Event";
case TRB_MFINDEX_WRAP:
return "MFINDEX Wrap Event";
case TRB_ENDPOINT_NRDY:
return "Endpoint Not ready";
case TRB_HALT_ENDPOINT:
return "Halt Endpoint";
default:
return "UNKNOWN";
}
}
static inline const char *cdnsp_ring_type_string(enum cdnsp_ring_type type)
{
switch (type) {
case TYPE_CTRL:
return "CTRL";
case TYPE_ISOC:
return "ISOC";
case TYPE_BULK:
return "BULK";
case TYPE_INTR:
return "INTR";
case TYPE_STREAM:
return "STREAM";
case TYPE_COMMAND:
return "CMD";
case TYPE_EVENT:
return "EVENT";
}
return "UNKNOWN";
}
static inline char *cdnsp_slot_state_string(u32 state)
{
switch (state) {
case SLOT_STATE_ENABLED:
return "enabled/disabled";
case SLOT_STATE_DEFAULT:
return "default";
case SLOT_STATE_ADDRESSED:
return "addressed";
case SLOT_STATE_CONFIGURED:
return "configured";
default:
return "reserved";
}
}
static inline const char *cdnsp_decode_trb(char *str, size_t size, u32 field0,
u32 field1, u32 field2, u32 field3)
{
int ep_id = TRB_TO_EP_INDEX(field3) - 1;
int type = TRB_FIELD_TO_TYPE(field3);
unsigned int ep_num;
int ret;
u32 temp;
ep_num = DIV_ROUND_UP(ep_id, 2);
switch (type) {
case TRB_LINK:
ret = scnprintf(str, size,
"LINK %08x%08x intr %ld type '%s' flags %c:%c:%c:%c",
field1, field0, GET_INTR_TARGET(field2),
cdnsp_trb_type_string(type),
field3 & TRB_IOC ? 'I' : 'i',
field3 & TRB_CHAIN ? 'C' : 'c',
field3 & TRB_TC ? 'T' : 't',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_TRANSFER:
case TRB_COMPLETION:
case TRB_PORT_STATUS:
case TRB_HC_EVENT:
ret = scnprintf(str, size,
"ep%d%s(%d) type '%s' TRB %08x%08x status '%s'"
" len %ld slot %ld flags %c:%c",
ep_num, ep_id % 2 ? "out" : "in",
TRB_TO_EP_INDEX(field3),
cdnsp_trb_type_string(type), field1, field0,
cdnsp_trb_comp_code_string(GET_COMP_CODE(field2)),
EVENT_TRB_LEN(field2), TRB_TO_SLOT_ID(field3),
field3 & EVENT_DATA ? 'E' : 'e',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_MFINDEX_WRAP:
ret = scnprintf(str, size, "%s: flags %c",
cdnsp_trb_type_string(type),
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_SETUP:
ret = scnprintf(str, size,
"type '%s' bRequestType %02x bRequest %02x "
"wValue %02x%02x wIndex %02x%02x wLength %d "
"length %ld TD size %ld intr %ld Setup ID %ld "
"flags %c:%c:%c",
cdnsp_trb_type_string(type),
field0 & 0xff,
(field0 & 0xff00) >> 8,
(field0 & 0xff000000) >> 24,
(field0 & 0xff0000) >> 16,
(field1 & 0xff00) >> 8,
field1 & 0xff,
(field1 & 0xff000000) >> 16 |
(field1 & 0xff0000) >> 16,
TRB_LEN(field2), GET_TD_SIZE(field2),
GET_INTR_TARGET(field2),
TRB_SETUPID_TO_TYPE(field3),
field3 & TRB_IDT ? 'D' : 'd',
field3 & TRB_IOC ? 'I' : 'i',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_DATA:
ret = scnprintf(str, size,
"type '%s' Buffer %08x%08x length %ld TD size %ld "
"intr %ld flags %c:%c:%c:%c:%c:%c:%c",
cdnsp_trb_type_string(type),
field1, field0, TRB_LEN(field2),
GET_TD_SIZE(field2),
GET_INTR_TARGET(field2),
field3 & TRB_IDT ? 'D' : 'i',
field3 & TRB_IOC ? 'I' : 'i',
field3 & TRB_CHAIN ? 'C' : 'c',
field3 & TRB_NO_SNOOP ? 'S' : 's',
field3 & TRB_ISP ? 'I' : 'i',
field3 & TRB_ENT ? 'E' : 'e',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_STATUS:
ret = scnprintf(str, size,
"Buffer %08x%08x length %ld TD size %ld intr"
"%ld type '%s' flags %c:%c:%c:%c",
field1, field0, TRB_LEN(field2),
GET_TD_SIZE(field2),
GET_INTR_TARGET(field2),
cdnsp_trb_type_string(type),
field3 & TRB_IOC ? 'I' : 'i',
field3 & TRB_CHAIN ? 'C' : 'c',
field3 & TRB_ENT ? 'E' : 'e',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_NORMAL:
case TRB_ISOC:
case TRB_EVENT_DATA:
case TRB_TR_NOOP:
ret = scnprintf(str, size,
"type '%s' Buffer %08x%08x length %ld "
"TD size %ld intr %ld "
"flags %c:%c:%c:%c:%c:%c:%c:%c:%c",
cdnsp_trb_type_string(type),
field1, field0, TRB_LEN(field2),
GET_TD_SIZE(field2),
GET_INTR_TARGET(field2),
field3 & TRB_BEI ? 'B' : 'b',
field3 & TRB_IDT ? 'T' : 't',
field3 & TRB_IOC ? 'I' : 'i',
field3 & TRB_CHAIN ? 'C' : 'c',
field3 & TRB_NO_SNOOP ? 'S' : 's',
field3 & TRB_ISP ? 'I' : 'i',
field3 & TRB_ENT ? 'E' : 'e',
field3 & TRB_CYCLE ? 'C' : 'c',
!(field3 & TRB_EVENT_INVALIDATE) ? 'V' : 'v');
break;
case TRB_CMD_NOOP:
case TRB_ENABLE_SLOT:
ret = scnprintf(str, size, "%s: flags %c",
cdnsp_trb_type_string(type),
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_DISABLE_SLOT:
ret = scnprintf(str, size, "%s: slot %ld flags %c",
cdnsp_trb_type_string(type),
TRB_TO_SLOT_ID(field3),
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_ADDR_DEV:
ret = scnprintf(str, size,
"%s: ctx %08x%08x slot %ld flags %c:%c",
cdnsp_trb_type_string(type), field1, field0,
TRB_TO_SLOT_ID(field3),
field3 & TRB_BSR ? 'B' : 'b',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_CONFIG_EP:
ret = scnprintf(str, size,
"%s: ctx %08x%08x slot %ld flags %c:%c",
cdnsp_trb_type_string(type), field1, field0,
TRB_TO_SLOT_ID(field3),
field3 & TRB_DC ? 'D' : 'd',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_EVAL_CONTEXT:
ret = scnprintf(str, size,
"%s: ctx %08x%08x slot %ld flags %c",
cdnsp_trb_type_string(type), field1, field0,
TRB_TO_SLOT_ID(field3),
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_RESET_EP:
case TRB_HALT_ENDPOINT:
ret = scnprintf(str, size,
"%s: ep%d%s(%d) ctx %08x%08x slot %ld flags %c",
cdnsp_trb_type_string(type),
ep_num, ep_id % 2 ? "out" : "in",
TRB_TO_EP_INDEX(field3), field1, field0,
TRB_TO_SLOT_ID(field3),
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_STOP_RING:
ret = scnprintf(str, size,
"%s: ep%d%s(%d) slot %ld sp %d flags %c",
cdnsp_trb_type_string(type),
ep_num, ep_id % 2 ? "out" : "in",
TRB_TO_EP_INDEX(field3),
TRB_TO_SLOT_ID(field3),
TRB_TO_SUSPEND_PORT(field3),
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_SET_DEQ:
ret = scnprintf(str, size,
"%s: ep%d%s(%d) deq %08x%08x stream %ld slot %ld flags %c",
cdnsp_trb_type_string(type),
ep_num, ep_id % 2 ? "out" : "in",
TRB_TO_EP_INDEX(field3), field1, field0,
TRB_TO_STREAM_ID(field2),
TRB_TO_SLOT_ID(field3),
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_RESET_DEV:
ret = scnprintf(str, size, "%s: slot %ld flags %c",
cdnsp_trb_type_string(type),
TRB_TO_SLOT_ID(field3),
field3 & TRB_CYCLE ? 'C' : 'c');
break;
case TRB_ENDPOINT_NRDY:
temp = TRB_TO_HOST_STREAM(field2);
ret = scnprintf(str, size,
"%s: ep%d%s(%d) H_SID %x%s%s D_SID %lx flags %c:%c",
cdnsp_trb_type_string(type),
ep_num, ep_id % 2 ? "out" : "in",
TRB_TO_EP_INDEX(field3), temp,
temp == STREAM_PRIME_ACK ? "(PRIME)" : "",
temp == STREAM_REJECTED ? "(REJECTED)" : "",
TRB_TO_DEV_STREAM(field0),
field3 & TRB_STAT ? 'S' : 's',
field3 & TRB_CYCLE ? 'C' : 'c');
break;
default:
ret = scnprintf(str, size,
"type '%s' -> raw %08x %08x %08x %08x",
cdnsp_trb_type_string(type),
field0, field1, field2, field3);
}
if (ret == size - 1)
pr_info("CDNSP: buffer may be truncated.\n");
return str;
}
static inline const char *cdnsp_decode_slot_context(u32 info, u32 info2,
u32 int_target, u32 state)
{
static char str[1024];
int ret = 0;
u32 speed;
char *s;
speed = info & DEV_SPEED;
switch (speed) {
case SLOT_SPEED_FS:
s = "full-speed";
break;
case SLOT_SPEED_HS:
s = "high-speed";
break;
case SLOT_SPEED_SS:
s = "super-speed";
break;
case SLOT_SPEED_SSP:
s = "super-speed plus";
break;
default:
s = "UNKNOWN speed";
}
ret = sprintf(str, "%s Ctx Entries %d",
s, (info & LAST_CTX_MASK) >> 27);
ret += sprintf(str + ret, " [Intr %ld] Addr %ld State %s",
GET_INTR_TARGET(int_target), state & DEV_ADDR_MASK,
cdnsp_slot_state_string(GET_SLOT_STATE(state)));
return str;
}
static inline const char *cdnsp_portsc_link_state_string(u32 portsc)
{
switch (portsc & PORT_PLS_MASK) {
case XDEV_U0:
return "U0";
case XDEV_U1:
return "U1";
case XDEV_U2:
return "U2";
case XDEV_U3:
return "U3";
case XDEV_DISABLED:
return "Disabled";
case XDEV_RXDETECT:
return "RxDetect";
case XDEV_INACTIVE:
return "Inactive";
case XDEV_POLLING:
return "Polling";
case XDEV_RECOVERY:
return "Recovery";
case XDEV_HOT_RESET:
return "Hot Reset";
case XDEV_COMP_MODE:
return "Compliance mode";
case XDEV_TEST_MODE:
return "Test mode";
case XDEV_RESUME:
return "Resume";
default:
break;
}
return "Unknown";
}
static inline const char *cdnsp_decode_portsc(char *str, size_t size,
u32 portsc)
{
int ret;
ret = scnprintf(str, size, "%s %s %s Link:%s PortSpeed:%d ",
portsc & PORT_POWER ? "Powered" : "Powered-off",
portsc & PORT_CONNECT ? "Connected" : "Not-connected",
portsc & PORT_PED ? "Enabled" : "Disabled",
cdnsp_portsc_link_state_string(portsc),
DEV_PORT_SPEED(portsc));
if (portsc & PORT_RESET)
ret += scnprintf(str + ret, size - ret, "In-Reset ");
ret += scnprintf(str + ret, size - ret, "Change: ");
if (portsc & PORT_CSC)
ret += scnprintf(str + ret, size - ret, "CSC ");
if (portsc & PORT_WRC)
ret += scnprintf(str + ret, size - ret, "WRC ");
if (portsc & PORT_RC)
ret += scnprintf(str + ret, size - ret, "PRC ");
if (portsc & PORT_PLC)
ret += scnprintf(str + ret, size - ret, "PLC ");
if (portsc & PORT_CEC)
ret += scnprintf(str + ret, size - ret, "CEC ");
ret += scnprintf(str + ret, size - ret, "Wake: ");
if (portsc & PORT_WKCONN_E)
ret += scnprintf(str + ret, size - ret, "WCE ");
if (portsc & PORT_WKDISC_E)
ret += scnprintf(str + ret, size - ret, "WDE ");
return str;
}
static inline const char *cdnsp_ep_state_string(u8 state)
{
switch (state) {
case EP_STATE_DISABLED:
return "disabled";
case EP_STATE_RUNNING:
return "running";
case EP_STATE_HALTED:
return "halted";
case EP_STATE_STOPPED:
return "stopped";
case EP_STATE_ERROR:
return "error";
default:
return "INVALID";
}
}
static inline const char *cdnsp_ep_type_string(u8 type)
{
switch (type) {
case ISOC_OUT_EP:
return "Isoc OUT";
case BULK_OUT_EP:
return "Bulk OUT";
case INT_OUT_EP:
return "Int OUT";
case CTRL_EP:
return "Ctrl";
case ISOC_IN_EP:
return "Isoc IN";
case BULK_IN_EP:
return "Bulk IN";
case INT_IN_EP:
return "Int IN";
default:
return "INVALID";
}
}
static inline const char *cdnsp_decode_ep_context(char *str, size_t size,
u32 info, u32 info2,
u64 deq, u32 tx_info)
{
u8 max_pstr, ep_state, interval, ep_type, burst, cerr, mult;
bool lsa, hid;
u16 maxp, avg;
u32 esit;
int ret;
esit = CTX_TO_MAX_ESIT_PAYLOAD_HI(info) << 16 |
CTX_TO_MAX_ESIT_PAYLOAD_LO(tx_info);
ep_state = info & EP_STATE_MASK;
max_pstr = CTX_TO_EP_MAXPSTREAMS(info);
interval = CTX_TO_EP_INTERVAL(info);
mult = CTX_TO_EP_MULT(info) + 1;
lsa = !!(info & EP_HAS_LSA);
cerr = (info2 & (3 << 1)) >> 1;
ep_type = CTX_TO_EP_TYPE(info2);
hid = !!(info2 & (1 << 7));
burst = CTX_TO_MAX_BURST(info2);
maxp = MAX_PACKET_DECODED(info2);
avg = EP_AVG_TRB_LENGTH(tx_info);
ret = scnprintf(str, size, "State %s mult %d max P. Streams %d %s",
cdnsp_ep_state_string(ep_state), mult,
max_pstr, lsa ? "LSA " : "");
ret += scnprintf(str + ret, size - ret,
"interval %d us max ESIT payload %d CErr %d ",
(1 << interval) * 125, esit, cerr);
ret += scnprintf(str + ret, size - ret,
"Type %s %sburst %d maxp %d deq %016llx ",
cdnsp_ep_type_string(ep_type), hid ? "HID" : "",
burst, maxp, deq);
ret += scnprintf(str + ret, size - ret, "avg trb len %d", avg);
return str;
}
#endif /*__LINUX_CDNSP_DEBUG*/
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