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linux/drivers/usb/dwc3/trace.h
Andy Shevchenko 54d48183d2 usb: dwc3: trace: add missing break statement to make compiler happy 
The missed break statement in the outer switch makes the code fall through
always and thus always same value will be printed.

Besides that, compiler warns about missed fall through marker:

drivers/usb/dwc3/./trace.h: In function ‘trace_raw_output_dwc3_log_trb’:
drivers/usb/dwc3/./trace.h:246:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
    switch (pcm) {
    ^~~~~~

Add the missing break statement to work correctly without compilation
warnings.

Fixes: fa8d965d73 ("usb: dwc3: trace: pretty print high-bandwidth transfers too")
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-12-07 07:30:18 +02:00

344 lines
8.9 KiB
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// SPDX-License-Identifier: GPL-2.0
/**
* trace.h - DesignWare USB3 DRD Controller Trace Support
*
* Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
*
* Author: Felipe Balbi <balbi@ti.com>
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM dwc3
#if !defined(__DWC3_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define __DWC3_TRACE_H
#include <linux/types.h>
#include <linux/tracepoint.h>
#include <asm/byteorder.h>
#include "core.h"
#include "debug.h"
DECLARE_EVENT_CLASS(dwc3_log_io,
TP_PROTO(void *base, u32 offset, u32 value),
TP_ARGS(base, offset, value),
TP_STRUCT__entry(
__field(void *, base)
__field(u32, offset)
__field(u32, value)
),
TP_fast_assign(
__entry->base = base;
__entry->offset = offset;
__entry->value = value;
),
TP_printk("addr %p value %08x", __entry->base + __entry->offset,
__entry->value)
);
DEFINE_EVENT(dwc3_log_io, dwc3_readl,
TP_PROTO(void __iomem *base, u32 offset, u32 value),
TP_ARGS(base, offset, value)
);
DEFINE_EVENT(dwc3_log_io, dwc3_writel,
TP_PROTO(void __iomem *base, u32 offset, u32 value),
TP_ARGS(base, offset, value)
);
DECLARE_EVENT_CLASS(dwc3_log_event,
TP_PROTO(u32 event, struct dwc3 *dwc),
TP_ARGS(event, dwc),
TP_STRUCT__entry(
__field(u32, event)
__field(u32, ep0state)
__dynamic_array(char, str, DWC3_MSG_MAX)
),
TP_fast_assign(
__entry->event = event;
__entry->ep0state = dwc->ep0state;
),
TP_printk("event (%08x): %s", __entry->event,
dwc3_decode_event(__get_str(str), __entry->event,
__entry->ep0state))
);
DEFINE_EVENT(dwc3_log_event, dwc3_event,
TP_PROTO(u32 event, struct dwc3 *dwc),
TP_ARGS(event, dwc)
);
DECLARE_EVENT_CLASS(dwc3_log_ctrl,
TP_PROTO(struct usb_ctrlrequest *ctrl),
TP_ARGS(ctrl),
TP_STRUCT__entry(
__field(__u8, bRequestType)
__field(__u8, bRequest)
__field(__u16, wValue)
__field(__u16, wIndex)
__field(__u16, wLength)
__dynamic_array(char, str, DWC3_MSG_MAX)
),
TP_fast_assign(
__entry->bRequestType = ctrl->bRequestType;
__entry->bRequest = ctrl->bRequest;
__entry->wValue = le16_to_cpu(ctrl->wValue);
__entry->wIndex = le16_to_cpu(ctrl->wIndex);
__entry->wLength = le16_to_cpu(ctrl->wLength);
),
TP_printk("%s", dwc3_decode_ctrl(__get_str(str), __entry->bRequestType,
__entry->bRequest, __entry->wValue,
__entry->wIndex, __entry->wLength)
)
);
DEFINE_EVENT(dwc3_log_ctrl, dwc3_ctrl_req,
TP_PROTO(struct usb_ctrlrequest *ctrl),
TP_ARGS(ctrl)
);
DECLARE_EVENT_CLASS(dwc3_log_request,
TP_PROTO(struct dwc3_request *req),
TP_ARGS(req),
TP_STRUCT__entry(
__string(name, req->dep->name)
__field(struct dwc3_request *, req)
__field(unsigned, actual)
__field(unsigned, length)
__field(int, status)
__field(int, zero)
__field(int, short_not_ok)
__field(int, no_interrupt)
),
TP_fast_assign(
__assign_str(name, req->dep->name);
__entry->req = req;
__entry->actual = req->request.actual;
__entry->length = req->request.length;
__entry->status = req->request.status;
__entry->zero = req->request.zero;
__entry->short_not_ok = req->request.short_not_ok;
__entry->no_interrupt = req->request.no_interrupt;
),
TP_printk("%s: req %p length %u/%u %s%s%s ==> %d",
__get_str(name), __entry->req, __entry->actual, __entry->length,
__entry->zero ? "Z" : "z",
__entry->short_not_ok ? "S" : "s",
__entry->no_interrupt ? "i" : "I",
__entry->status
)
);
DEFINE_EVENT(dwc3_log_request, dwc3_alloc_request,
TP_PROTO(struct dwc3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(dwc3_log_request, dwc3_free_request,
TP_PROTO(struct dwc3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(dwc3_log_request, dwc3_ep_queue,
TP_PROTO(struct dwc3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(dwc3_log_request, dwc3_ep_dequeue,
TP_PROTO(struct dwc3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(dwc3_log_request, dwc3_gadget_giveback,
TP_PROTO(struct dwc3_request *req),
TP_ARGS(req)
);
DECLARE_EVENT_CLASS(dwc3_log_generic_cmd,
TP_PROTO(unsigned int cmd, u32 param, int status),
TP_ARGS(cmd, param, status),
TP_STRUCT__entry(
__field(unsigned int, cmd)
__field(u32, param)
__field(int, status)
),
TP_fast_assign(
__entry->cmd = cmd;
__entry->param = param;
__entry->status = status;
),
TP_printk("cmd '%s' [%x] param %08x --> status: %s",
dwc3_gadget_generic_cmd_string(__entry->cmd),
__entry->cmd, __entry->param,
dwc3_gadget_generic_cmd_status_string(__entry->status)
)
);
DEFINE_EVENT(dwc3_log_generic_cmd, dwc3_gadget_generic_cmd,
TP_PROTO(unsigned int cmd, u32 param, int status),
TP_ARGS(cmd, param, status)
);
DECLARE_EVENT_CLASS(dwc3_log_gadget_ep_cmd,
TP_PROTO(struct dwc3_ep *dep, unsigned int cmd,
struct dwc3_gadget_ep_cmd_params *params, int cmd_status),
TP_ARGS(dep, cmd, params, cmd_status),
TP_STRUCT__entry(
__string(name, dep->name)
__field(unsigned int, cmd)
__field(u32, param0)
__field(u32, param1)
__field(u32, param2)
__field(int, cmd_status)
),
TP_fast_assign(
__assign_str(name, dep->name);
__entry->cmd = cmd;
__entry->param0 = params->param0;
__entry->param1 = params->param1;
__entry->param2 = params->param2;
__entry->cmd_status = cmd_status;
),
TP_printk("%s: cmd '%s' [%x] params %08x %08x %08x --> status: %s",
__get_str(name), dwc3_gadget_ep_cmd_string(__entry->cmd),
__entry->cmd, __entry->param0,
__entry->param1, __entry->param2,
dwc3_ep_cmd_status_string(__entry->cmd_status)
)
);
DEFINE_EVENT(dwc3_log_gadget_ep_cmd, dwc3_gadget_ep_cmd,
TP_PROTO(struct dwc3_ep *dep, unsigned int cmd,
struct dwc3_gadget_ep_cmd_params *params, int cmd_status),
TP_ARGS(dep, cmd, params, cmd_status)
);
DECLARE_EVENT_CLASS(dwc3_log_trb,
TP_PROTO(struct dwc3_ep *dep, struct dwc3_trb *trb),
TP_ARGS(dep, trb),
TP_STRUCT__entry(
__string(name, dep->name)
__field(struct dwc3_trb *, trb)
__field(u32, allocated)
__field(u32, queued)
__field(u32, bpl)
__field(u32, bph)
__field(u32, size)
__field(u32, ctrl)
__field(u32, type)
),
TP_fast_assign(
__assign_str(name, dep->name);
__entry->trb = trb;
__entry->bpl = trb->bpl;
__entry->bph = trb->bph;
__entry->size = trb->size;
__entry->ctrl = trb->ctrl;
__entry->type = usb_endpoint_type(dep->endpoint.desc);
),
TP_printk("%s: trb %p buf %08x%08x size %s%d ctrl %08x (%c%c%c%c:%c%c:%s)",
__get_str(name), __entry->trb, __entry->bph, __entry->bpl,
({char *s;
int pcm = ((__entry->size >> 24) & 3) + 1;
switch (__entry->type) {
case USB_ENDPOINT_XFER_INT:
case USB_ENDPOINT_XFER_ISOC:
switch (pcm) {
case 1:
s = "1x ";
break;
case 2:
s = "2x ";
break;
case 3:
default:
s = "3x ";
break;
}
break;
default:
s = "";
} s; }),
DWC3_TRB_SIZE_LENGTH(__entry->size), __entry->ctrl,
__entry->ctrl & DWC3_TRB_CTRL_HWO ? 'H' : 'h',
__entry->ctrl & DWC3_TRB_CTRL_LST ? 'L' : 'l',
__entry->ctrl & DWC3_TRB_CTRL_CHN ? 'C' : 'c',
__entry->ctrl & DWC3_TRB_CTRL_CSP ? 'S' : 's',
__entry->ctrl & DWC3_TRB_CTRL_ISP_IMI ? 'S' : 's',
__entry->ctrl & DWC3_TRB_CTRL_IOC ? 'C' : 'c',
dwc3_trb_type_string(DWC3_TRBCTL_TYPE(__entry->ctrl))
)
);
DEFINE_EVENT(dwc3_log_trb, dwc3_prepare_trb,
TP_PROTO(struct dwc3_ep *dep, struct dwc3_trb *trb),
TP_ARGS(dep, trb)
);
DEFINE_EVENT(dwc3_log_trb, dwc3_complete_trb,
TP_PROTO(struct dwc3_ep *dep, struct dwc3_trb *trb),
TP_ARGS(dep, trb)
);
DECLARE_EVENT_CLASS(dwc3_log_ep,
TP_PROTO(struct dwc3_ep *dep),
TP_ARGS(dep),
TP_STRUCT__entry(
__string(name, dep->name)
__field(unsigned, maxpacket)
__field(unsigned, maxpacket_limit)
__field(unsigned, max_streams)
__field(unsigned, maxburst)
__field(unsigned, flags)
__field(unsigned, direction)
__field(u8, trb_enqueue)
__field(u8, trb_dequeue)
),
TP_fast_assign(
__assign_str(name, dep->name);
__entry->maxpacket = dep->endpoint.maxpacket;
__entry->maxpacket_limit = dep->endpoint.maxpacket_limit;
__entry->max_streams = dep->endpoint.max_streams;
__entry->maxburst = dep->endpoint.maxburst;
__entry->flags = dep->flags;
__entry->direction = dep->direction;
__entry->trb_enqueue = dep->trb_enqueue;
__entry->trb_dequeue = dep->trb_dequeue;
),
TP_printk("%s: mps %d/%d streams %d burst %d ring %d/%d flags %c:%c%c%c%c:%c:%c",
__get_str(name), __entry->maxpacket,
__entry->maxpacket_limit, __entry->max_streams,
__entry->maxburst, __entry->trb_enqueue,
__entry->trb_dequeue,
__entry->flags & DWC3_EP_ENABLED ? 'E' : 'e',
__entry->flags & DWC3_EP_STALL ? 'S' : 's',
__entry->flags & DWC3_EP_WEDGE ? 'W' : 'w',
__entry->flags & DWC3_EP_TRANSFER_STARTED ? 'B' : 'b',
__entry->flags & DWC3_EP_PENDING_REQUEST ? 'P' : 'p',
__entry->flags & DWC3_EP_END_TRANSFER_PENDING ? 'E' : 'e',
__entry->direction ? '<' : '>'
)
);
DEFINE_EVENT(dwc3_log_ep, dwc3_gadget_ep_enable,
TP_PROTO(struct dwc3_ep *dep),
TP_ARGS(dep)
);
DEFINE_EVENT(dwc3_log_ep, dwc3_gadget_ep_disable,
TP_PROTO(struct dwc3_ep *dep),
TP_ARGS(dep)
);
#endif /* __DWC3_TRACE_H */
/* this part has to be here */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>
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