This new set of tracepoints will help all gadget
drivers and UDC drivers when problem appears. Note
that, in order to be able to add tracepoints to
udc-core.c we had to rename that to core.c and
statically link it with trace.c to form
udc-core.o. This is to make sure that module name
stays the same.
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
drivers/usb/gadget/udc/Makefile | 5 +
drivers/usb/gadget/udc/{udc-core.c => core.c} | 260 +++++++++++++++++-----
drivers/usb/gadget/udc/trace.c | 18 ++
drivers/usb/gadget/udc/trace.h | 298 ++++++++++++++++++++++++++
include/linux/usb/gadget.h | 4 +
5 files changed, 530 insertions(+), 55 deletions(-)
rename drivers/usb/gadget/udc/{udc-core.c => core.c} (92%)
create mode 100644 drivers/usb/gadget/udc/trace.c
create mode 100644 drivers/usb/gadget/udc/trace.h
diff --git a/drivers/usb/gadget/udc/Makefile b/drivers/usb/gadget/udc/Makefile
index dfee53446319..98e74ed9f555 100644
--- a/drivers/usb/gadget/udc/Makefile
+++ b/drivers/usb/gadget/udc/Makefile
@@ -1,3 +1,8 @@
+# define_trace.h needs to know how to find our header
+CFLAGS_trace.o := -I$(src)
+
+udc-core-y := core.o trace.o
+
#
# USB peripheral controller drivers
#
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/core.c
similarity index 92%
rename from drivers/usb/gadget/udc/udc-core.c
rename to drivers/usb/gadget/udc/core.c
index d2f28bb6dbda..42756d7b647a 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -29,6 +29,8 @@
#include <linux/usb/gadget.h>
#include <linux/usb.h>
+#include "trace.h"
+
/**
* struct usb_udc - describes one usb device controller
* @driver - the gadget driver pointer. For use by the class code
@@ -72,6 +74,8 @@ void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
{
ep->maxpacket_limit = maxpacket_limit;
ep->maxpacket = maxpacket_limit;
+
+ trace_usb_ep_set_maxpacket_limit(ep, 0);
}
EXPORT_SYMBOL_GPL(usb_ep_set_maxpacket_limit);
@@ -97,18 +101,23 @@ EXPORT_SYMBOL_GPL(usb_ep_set_maxpacket_limit);
*/
int usb_ep_enable(struct usb_ep *ep)
{
- int ret;
+ int ret = 0;
if (ep->enabled)
- return 0;
+ goto out;
ret = ep->ops->enable(ep, ep->desc);
- if (ret)
- return ret;
+ if (ret) {
+ ret = ret;
+ goto out;
+ }
ep->enabled = true;
- return 0;
+out:
+ trace_usb_ep_enable(ep, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_ep_enable);
@@ -126,18 +135,23 @@ EXPORT_SYMBOL_GPL(usb_ep_enable);
*/
int usb_ep_disable(struct usb_ep *ep)
{
- int ret;
+ int ret = 0;
if (!ep->enabled)
- return 0;
+ goto out;
ret = ep->ops->disable(ep);
- if (ret)
- return ret;
+ if (ret) {
+ ret = ret;
+ goto out;
+ }
ep->enabled = false;
- return 0;
+out:
+ trace_usb_ep_disable(ep, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_ep_disable);
@@ -158,7 +172,13 @@ EXPORT_SYMBOL_GPL(usb_ep_disable);
struct usb_request *usb_ep_alloc_request(struct usb_ep *ep,
gfp_t gfp_flags)
{
- return ep->ops->alloc_request(ep, gfp_flags);
+ struct usb_request *req = NULL;
+
+ req = ep->ops->alloc_request(ep, gfp_flags);
+
+ trace_usb_ep_alloc_request(ep, req, req ? 0 : -ENOMEM);
+
+ return req;
}
EXPORT_SYMBOL_GPL(usb_ep_alloc_request);
@@ -175,6 +195,7 @@ void usb_ep_free_request(struct usb_ep *ep,
struct usb_request *req)
{
ep->ops->free_request(ep, req);
+ trace_usb_ep_free_request(ep, req, 0);
}
EXPORT_SYMBOL_GPL(usb_ep_free_request);
@@ -238,10 +259,19 @@ EXPORT_SYMBOL_GPL(usb_ep_free_request);
int usb_ep_queue(struct usb_ep *ep,
struct usb_request *req, gfp_t gfp_flags)
{
- if (WARN_ON_ONCE(!ep->enabled && ep->address))
- return -ESHUTDOWN;
+ int ret = 0;
+
+ if (WARN_ON_ONCE(!ep->enabled && ep->address)) {
+ ret = -ESHUTDOWN;
+ goto out;
+ }
+
+ ret = ep->ops->queue(ep, req, gfp_flags);
- return ep->ops->queue(ep, req, gfp_flags);
+out:
+ trace_usb_ep_queue(ep, req, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_ep_queue);
@@ -262,7 +292,12 @@ EXPORT_SYMBOL_GPL(usb_ep_queue);
*/
int usb_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
{
- return ep->ops->dequeue(ep, req);
+ int ret;
+
+ ret = ep->ops->dequeue(ep, req);
+ trace_usb_ep_dequeue(ep, req, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_ep_dequeue);
@@ -289,7 +324,12 @@ EXPORT_SYMBOL_GPL(usb_ep_dequeue);
*/
int usb_ep_set_halt(struct usb_ep *ep)
{
- return ep->ops->set_halt(ep, 1);
+ int ret;
+
+ ret = ep->ops->set_halt(ep, 1);
+ trace_usb_ep_set_halt(ep, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_ep_set_halt);
@@ -308,7 +348,12 @@ EXPORT_SYMBOL_GPL(usb_ep_set_halt);
*/
int usb_ep_clear_halt(struct usb_ep *ep)
{
- return ep->ops->set_halt(ep, 0);
+ int ret;
+
+ ret = ep->ops->set_halt(ep, 0);
+ trace_usb_ep_clear_halt(ep, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_ep_clear_halt);
@@ -324,10 +369,16 @@ EXPORT_SYMBOL_GPL(usb_ep_clear_halt);
*/
int usb_ep_set_wedge(struct usb_ep *ep)
{
+ int ret;
+
if (ep->ops->set_wedge)
- return ep->ops->set_wedge(ep);
+ ret = ep->ops->set_wedge(ep);
else
- return ep->ops->set_halt(ep, 1);
+ ret = ep->ops->set_halt(ep, 1);
+
+ trace_usb_ep_set_wedge(ep, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_ep_set_wedge);
@@ -348,10 +399,16 @@ EXPORT_SYMBOL_GPL(usb_ep_set_wedge);
*/
int usb_ep_fifo_status(struct usb_ep *ep)
{
+ int ret;
+
if (ep->ops->fifo_status)
- return ep->ops->fifo_status(ep);
+ ret = ep->ops->fifo_status(ep);
else
- return -EOPNOTSUPP;
+ ret = -EOPNOTSUPP;
+
+ trace_usb_ep_fifo_status(ep, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_ep_fifo_status);
@@ -368,6 +425,8 @@ void usb_ep_fifo_flush(struct usb_ep *ep)
{
if (ep->ops->fifo_flush)
ep->ops->fifo_flush(ep);
+
+ trace_usb_ep_fifo_flush(ep, 0);
}
EXPORT_SYMBOL_GPL(usb_ep_fifo_flush);
@@ -382,7 +441,13 @@ EXPORT_SYMBOL_GPL(usb_ep_fifo_flush);
*/
int usb_gadget_frame_number(struct usb_gadget *gadget)
{
- return gadget->ops->get_frame(gadget);
+ int ret;
+
+ ret = gadget->ops->get_frame(gadget);
+
+ trace_usb_gadget_frame_number(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_frame_number);
@@ -401,9 +466,19 @@ EXPORT_SYMBOL_GPL(usb_gadget_frame_number);
*/
int usb_gadget_wakeup(struct usb_gadget *gadget)
{
- if (!gadget->ops->wakeup)
- return -EOPNOTSUPP;
- return gadget->ops->wakeup(gadget);
+ int ret = 0;
+
+ if (!gadget->ops->wakeup) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ ret = gadget->ops->wakeup(gadget);
+
+out:
+ trace_usb_gadget_wakeup(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_wakeup);
@@ -418,9 +493,19 @@ EXPORT_SYMBOL_GPL(usb_gadget_wakeup);
*/
int usb_gadget_set_selfpowered(struct usb_gadget *gadget)
{
- if (!gadget->ops->set_selfpowered)
- return -EOPNOTSUPP;
- return gadget->ops->set_selfpowered(gadget, 1);
+ int ret = 0;
+
+ if (!gadget->ops->set_selfpowered) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ ret = gadget->ops->set_selfpowered(gadget, 1);
+
+out:
+ trace_usb_gadget_set_selfpowered(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_set_selfpowered);
@@ -436,9 +521,19 @@ EXPORT_SYMBOL_GPL(usb_gadget_set_selfpowered);
*/
int usb_gadget_clear_selfpowered(struct usb_gadget *gadget)
{
- if (!gadget->ops->set_selfpowered)
- return -EOPNOTSUPP;
- return gadget->ops->set_selfpowered(gadget, 0);
+ int ret = 0;
+
+ if (!gadget->ops->set_selfpowered) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ ret = gadget->ops->set_selfpowered(gadget, 0);
+
+out:
+ trace_usb_gadget_clear_selfpowered(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_clear_selfpowered);
@@ -457,9 +552,19 @@ EXPORT_SYMBOL_GPL(usb_gadget_clear_selfpowered);
*/
int usb_gadget_vbus_connect(struct usb_gadget *gadget)
{
- if (!gadget->ops->vbus_session)
- return -EOPNOTSUPP;
- return gadget->ops->vbus_session(gadget, 1);
+ int ret = 0;
+
+ if (!gadget->ops->vbus_session) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ ret = gadget->ops->vbus_session(gadget, 1);
+
+out:
+ trace_usb_gadget_vbus_connect(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_vbus_connect);
@@ -477,9 +582,21 @@ EXPORT_SYMBOL_GPL(usb_gadget_vbus_connect);
*/
int usb_gadget_vbus_draw(struct usb_gadget *gadget, unsigned mA)
{
- if (!gadget->ops->vbus_draw)
- return -EOPNOTSUPP;
- return gadget->ops->vbus_draw(gadget, mA);
+ int ret = 0;
+
+ if (!gadget->ops->vbus_draw) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ ret = gadget->ops->vbus_draw(gadget, mA);
+ if (!ret)
+ gadget->mA = mA;
+
+out:
+ trace_usb_gadget_vbus_draw(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_vbus_draw);
@@ -496,9 +613,19 @@ EXPORT_SYMBOL_GPL(usb_gadget_vbus_draw);
*/
int usb_gadget_vbus_disconnect(struct usb_gadget *gadget)
{
- if (!gadget->ops->vbus_session)
- return -EOPNOTSUPP;
- return gadget->ops->vbus_session(gadget, 0);
+ int ret = 0;
+
+ if (!gadget->ops->vbus_session) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ ret = gadget->ops->vbus_session(gadget, 0);
+
+out:
+ trace_usb_gadget_vbus_disconnect(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_vbus_disconnect);
@@ -515,10 +642,12 @@ EXPORT_SYMBOL_GPL(usb_gadget_vbus_disconnect);
*/
int usb_gadget_connect(struct usb_gadget *gadget)
{
- int ret;
+ int ret = 0;
- if (!gadget->ops->pullup)
- return -EOPNOTSUPP;
+ if (!gadget->ops->pullup) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
if (gadget->deactivated) {
/*
@@ -526,12 +655,16 @@ int usb_gadget_connect(struct usb_gadget *gadget)
* Gadget will be connected automatically after activation.
*/
gadget->connected = true;
- return 0;
+ goto out;
}
ret = gadget->ops->pullup(gadget, 1);
if (!ret)
gadget->connected = 1;
+
+out:
+ trace_usb_gadget_connect(gadget, ret);
+
return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_connect);
@@ -548,10 +681,12 @@ EXPORT_SYMBOL_GPL(usb_gadget_connect);
*/
int usb_gadget_disconnect(struct usb_gadget *gadget)
{
- int ret;
+ int ret = 0;
- if (!gadget->ops->pullup)
- return -EOPNOTSUPP;
+ if (!gadget->ops->pullup) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
if (gadget->deactivated) {
/*
@@ -559,12 +694,16 @@ int usb_gadget_disconnect(struct usb_gadget *gadget)
* Gadget will stay disconnected after activation.
*/
gadget->connected = false;
- return 0;
+ goto out;
}
ret = gadget->ops->pullup(gadget, 0);
if (!ret)
gadget->connected = 0;
+
+out:
+ trace_usb_gadget_disconnect(gadget, ret);
+
return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_disconnect);
@@ -582,15 +721,16 @@ EXPORT_SYMBOL_GPL(usb_gadget_disconnect);
*/
int usb_gadget_deactivate(struct usb_gadget *gadget)
{
- int ret;
+ int ret = 0;
if (gadget->deactivated)
- return 0;
+ goto out;
if (gadget->connected) {
ret = usb_gadget_disconnect(gadget);
if (ret)
- return ret;
+ goto out;
+
/*
* If gadget was being connected before deactivation, we want
* to reconnect it in usb_gadget_activate().
@@ -599,7 +739,10 @@ int usb_gadget_deactivate(struct usb_gadget *gadget)
}
gadget->deactivated = true;
- return 0;
+out:
+ trace_usb_gadget_deactivate(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_deactivate);
@@ -614,8 +757,10 @@ EXPORT_SYMBOL_GPL(usb_gadget_deactivate);
*/
int usb_gadget_activate(struct usb_gadget *gadget)
{
+ int ret = 0;
+
if (!gadget->deactivated)
- return 0;
+ goto out;
gadget->deactivated = false;
@@ -624,9 +769,12 @@ int usb_gadget_activate(struct usb_gadget *gadget)
* while it was being deactivated, we call usb_gadget_connect().
*/
if (gadget->connected)
- return usb_gadget_connect(gadget);
+ ret = usb_gadget_connect(gadget);
- return 0;
+out:
+ trace_usb_gadget_activate(gadget, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(usb_gadget_activate);
@@ -714,6 +862,8 @@ void usb_gadget_giveback_request(struct usb_ep *ep,
if (likely(req->status == 0))
usb_led_activity(USB_LED_EVENT_GADGET);
+ trace_usb_gadget_giveback_request(ep, req, 0);
+
req->complete(ep, req);
}
EXPORT_SYMBOL_GPL(usb_gadget_giveback_request);
diff --git a/drivers/usb/gadget/udc/trace.c b/drivers/usb/gadget/udc/trace.c
new file mode 100644
index 000000000000..8c551ab91ad8
--- /dev/null
+++ b/drivers/usb/gadget/udc/trace.c
@@ -0,0 +1,18 @@
+/**
+ * trace.c - USB Gadget Framework Trace Support
+ *
+ * Copyright (C) 2016 Intel Corporation
+ * Author: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
+ *
+ * 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.
+ */
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
diff --git a/drivers/usb/gadget/udc/trace.h b/drivers/usb/gadget/udc/trace.h
new file mode 100644
index 000000000000..da29874b5366
--- /dev/null
+++ b/drivers/usb/gadget/udc/trace.h
@@ -0,0 +1,298 @@
+/**
+ * udc.c - Core UDC Framework
+ *
+ * Copyright (C) 2016 Intel Corporation
+ * Author: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM gadget
+
+#if !defined(__UDC_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define __UDC_TRACE_H
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+#include <asm/byteorder.h>
+#include <linux/usb/gadget.h>
+
+DECLARE_EVENT_CLASS(udc_log_gadget,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret),
+ TP_STRUCT__entry(
+ __field(enum usb_device_speed, speed)
+ __field(enum usb_device_speed, max_speed)
+ __field(enum usb_device_state, state)
+ __field(unsigned, mA)
+ __field(unsigned, sg_supported)
+ __field(unsigned, is_otg)
+ __field(unsigned, is_a_peripheral)
+ __field(unsigned, b_hnp_enable)
+ __field(unsigned, a_hnp_support)
+ __field(unsigned, hnp_polling_support)
+ __field(unsigned, host_request_flag)
+ __field(unsigned, quirk_ep_out_aligned_size)
+ __field(unsigned, quirk_altset_not_supp)
+ __field(unsigned, quirk_stall_not_supp)
+ __field(unsigned, quirk_zlp_not_supp)
+ __field(unsigned, is_selfpowered)
+ __field(unsigned, deactivated)
+ __field(unsigned, connected)
+ __field(int, ret)
+ ),
+ TP_fast_assign(
+ __entry->speed = g->speed;
+ __entry->max_speed = g->max_speed;
+ __entry->state = g->state;
+ __entry->mA = g->mA;
+ __entry->sg_supported = g->sg_supported;
+ __entry->is_otg = g->is_otg;
+ __entry->is_a_peripheral = g->is_a_peripheral;
+ __entry->b_hnp_enable = g->b_hnp_enable;
+ __entry->a_hnp_support = g->a_hnp_support;
+ __entry->hnp_polling_support = g->hnp_polling_support;
+ __entry->host_request_flag = g->host_request_flag;
+ __entry->quirk_ep_out_aligned_size = g->quirk_ep_out_aligned_size;
+ __entry->quirk_altset_not_supp = g->quirk_altset_not_supp;
+ __entry->quirk_stall_not_supp = g->quirk_stall_not_supp;
+ __entry->quirk_zlp_not_supp = g->quirk_zlp_not_supp;
+ __entry->is_selfpowered = g->is_selfpowered;
+ __entry->deactivated = g->deactivated;
+ __entry->connected = g->connected;
+ __entry->ret = ret;
+ ),
+ TP_printk("speed %d/%d state %d %dmA [%s%s%s%s%s%s%s%s%s%s%s%s%s%s] --> %d",
+ __entry->speed, __entry->max_speed, __entry->state, __entry->mA,
+ __entry->sg_supported ? "sg:" : "",
+ __entry->is_otg ? "OTG:" : "",
+ __entry->is_a_peripheral ? "a_peripheral:" : "",
+ __entry->b_hnp_enable ? "b_hnp:" : "",
+ __entry->a_hnp_support ? "a_hnp:" : "",
+ __entry->hnp_polling_support ? "hnp_poll:" : "",
+ __entry->host_request_flag ? "hostreq:" : "",
+ __entry->quirk_ep_out_aligned_size ? "out_aligned:" : "",
+ __entry->quirk_altset_not_supp ? "no_altset:" : "",
+ __entry->quirk_stall_not_supp ? "no_stall:" : "",
+ __entry->quirk_zlp_not_supp ? "no_zlp" : "",
+ __entry->is_selfpowered ? "self-powered:" : "bus-powered:",
+ __entry->deactivated ? "deactivated:" : "activated:",
+ __entry->connected ? "connected" : "disconnected",
+ __entry->ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_frame_number,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_wakeup,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_set_selfpowered,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_clear_selfpowered,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_vbus_connect,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_vbus_draw,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_vbus_disconnect,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_connect,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_disconnect,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_deactivate,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DEFINE_EVENT(udc_log_gadget, usb_gadget_activate,
+ TP_PROTO(struct usb_gadget *g, int ret),
+ TP_ARGS(g, ret)
+);
+
+DECLARE_EVENT_CLASS(udc_log_ep,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret),
+ TP_STRUCT__entry(
+ __dynamic_array(char, name, UDC_TRACE_STR_MAX)
+ __field(unsigned, maxpacket)
+ __field(unsigned, maxpacket_limit)
+ __field(unsigned, max_streams)
+ __field(unsigned, mult)
+ __field(unsigned, maxburst)
+ __field(u8, address)
+ __field(bool, claimed)
+ __field(bool, enabled)
+ __field(int, ret)
+ ),
+ TP_fast_assign(
+ snprintf(__get_str(name), UDC_TRACE_STR_MAX, "%s", ep->name);
+ __entry->maxpacket = ep->maxpacket;
+ __entry->maxpacket_limit = ep->maxpacket_limit;
+ __entry->max_streams = ep->max_streams;
+ __entry->mult = ep->mult;
+ __entry->maxburst = ep->maxburst;
+ __entry->address = ep->address,
+ __entry->claimed = ep->claimed;
+ __entry->enabled = ep->enabled;
+ __entry->ret = ret;
+ ),
+ TP_printk("%s: mps %d/%d streams %d mult %d burst %d addr %02x %s%s --> %d",
+ __get_str(name), __entry->maxpacket, __entry->maxpacket_limit,
+ __entry->max_streams, __entry->mult, __entry->maxburst,
+ __entry->address, __entry->claimed ? "claimed:" : "released:",
+ __entry->enabled ? "enabled" : "disabled", ret)
+);
+
+DEFINE_EVENT(udc_log_ep, usb_ep_set_maxpacket_limit,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret)
+);
+
+DEFINE_EVENT(udc_log_ep, usb_ep_enable,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret)
+);
+
+DEFINE_EVENT(udc_log_ep, usb_ep_disable,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret)
+);
+
+DEFINE_EVENT(udc_log_ep, usb_ep_set_halt,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret)
+);
+
+DEFINE_EVENT(udc_log_ep, usb_ep_clear_halt,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret)
+);
+
+DEFINE_EVENT(udc_log_ep, usb_ep_set_wedge,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret)
+);
+
+DEFINE_EVENT(udc_log_ep, usb_ep_fifo_status,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret)
+);
+
+DEFINE_EVENT(udc_log_ep, usb_ep_fifo_flush,
+ TP_PROTO(struct usb_ep *ep, int ret),
+ TP_ARGS(ep, ret)
+);
+
+DECLARE_EVENT_CLASS(udc_log_req,
+ TP_PROTO(struct usb_ep *ep, struct usb_request *req, int ret),
+ TP_ARGS(ep, req, ret),
+ TP_STRUCT__entry(
+ __dynamic_array(char, name, UDC_TRACE_STR_MAX)
+ __field(unsigned, length)
+ __field(unsigned, actual)
+ __field(unsigned, num_sgs)
+ __field(unsigned, num_mapped_sgs)
+ __field(unsigned, stream_id)
+ __field(unsigned, no_interrupt)
+ __field(unsigned, zero)
+ __field(unsigned, short_not_ok)
+ __field(int, status)
+ __field(int, ret)
+ ),
+ TP_fast_assign(
+ snprintf(__get_str(name), UDC_TRACE_STR_MAX, "%s", ep->name);
+ __entry->length = req->length;
+ __entry->actual = req->actual;
+ __entry->num_sgs = req->num_sgs;
+ __entry->num_mapped_sgs = req->num_mapped_sgs;
+ __entry->stream_id = req->stream_id;
+ __entry->no_interrupt = req->no_interrupt;
+ __entry->zero = req->zero;
+ __entry->short_not_ok = req->short_not_ok;
+ __entry->status = req->status;
+ __entry->ret = ret;
+ ),
+ TP_printk("%s: length %d/%d sgs %d/%d stream %d %s%s%s status %d --> %d",
+ __get_str(name), __entry->actual, __entry->length,
+ __entry->num_mapped_sgs, __entry->num_sgs, __entry->stream_id,
+ __entry->zero ? "Z" : "z",
+ __entry->short_not_ok ? "S" : "s",
+ __entry->no_interrupt ? "i" : "I",
+ __entry->status, __entry->ret
+ )
+);
+
+DEFINE_EVENT(udc_log_req, usb_ep_alloc_request,
+ TP_PROTO(struct usb_ep *ep, struct usb_request *req, int ret),
+ TP_ARGS(ep, req, ret)
+);
+
+DEFINE_EVENT(udc_log_req, usb_ep_free_request,
+ TP_PROTO(struct usb_ep *ep, struct usb_request *req, int ret),
+ TP_ARGS(ep, req, ret)
+);
+
+DEFINE_EVENT(udc_log_req, usb_ep_queue,
+ TP_PROTO(struct usb_ep *ep, struct usb_request *req, int ret),
+ TP_ARGS(ep, req, ret)
+);
+
+DEFINE_EVENT(udc_log_req, usb_ep_dequeue,
+ TP_PROTO(struct usb_ep *ep, struct usb_request *req, int ret),
+ TP_ARGS(ep, req, ret)
+);
+
+DEFINE_EVENT(udc_log_req, usb_gadget_giveback_request,
+ TP_PROTO(struct usb_ep *ep, struct usb_request *req, int ret),
+ TP_ARGS(ep, req, ret)
+);
+
+#endif /* __UDC_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>
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 89e4a8de68e6..f327712cbef6 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -25,6 +25,8 @@
#include <linux/workqueue.h>
#include <linux/usb/ch9.h>
+#define UDC_TRACE_STR_MAX 512
+
struct usb_ep;
/**
@@ -293,6 +295,7 @@ struct usb_gadget_ops {
* @dev: Driver model state for this abstract device.
* @out_epnum: last used out ep number
* @in_epnum: last used in ep number
+ * @mA: last set mA value
* @otg_caps: OTG capabilities of this gadget.
* @sg_supported: true if we can handle scatter-gather
* @is_otg: True if the USB device port uses a Mini-AB jack, so that the
@@ -349,6 +352,7 @@ struct usb_gadget {
struct device dev;
unsigned out_epnum;
unsigned in_epnum;
+ unsigned mA;
struct usb_otg_caps *otg_caps;
unsigned sg_supported:1;
--
2.8.3
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