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/*
* Greybus driver and device API
*
* Copyright 2015 Google Inc.
* Copyright 2015 Linaro Ltd.
*
* Released under the GPLv2 only.
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM greybus
#if !defined(_TRACE_GREYBUS_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_GREYBUS_H
#include <linux/tracepoint.h>
struct gb_message;
struct gb_operation;
struct gb_host_device;
#define gb_bundle_name(message) \
(message->operation->connection->bundle ? \
dev_name(&message->operation->connection->bundle->dev) : \
dev_name(&message->operation->connection->hd->svc->dev))
DECLARE_EVENT_CLASS(gb_message,
TP_PROTO(struct gb_message *message),
TP_ARGS(message),
TP_STRUCT__entry(
__string(name, gb_bundle_name(message))
__field(u16, op_id)
__field(u16, intf_cport_id)
__field(u16, hd_cport_id)
__field(size_t, payload_size)
),
TP_fast_assign(
__assign_str(name, gb_bundle_name(message))
__entry->op_id = message->operation->id;
__entry->intf_cport_id =
message->operation->connection->intf_cport_id;
__entry->hd_cport_id =
message->operation->connection->hd_cport_id;
__entry->payload_size = message->payload_size;
),
TP_printk("greybus:%s op=%04x if_id=%u hd_id=%u l=%zu",
__get_str(name), __entry->op_id, __entry->intf_cport_id,
__entry->hd_cport_id, __entry->payload_size)
);
#define DEFINE_MESSAGE_EVENT(name) \
DEFINE_EVENT(gb_message, name, \
TP_PROTO(struct gb_message *message), \
TP_ARGS(message))
/*
* Occurs immediately before calling a host device's message_send()
* method.
*/
DEFINE_MESSAGE_EVENT(gb_message_send);
/*
* Occurs after an incoming request message has been received
*/
DEFINE_MESSAGE_EVENT(gb_message_recv_request);
/*
* Occurs after an incoming response message has been received,
* after its matching request has been found.
*/
DEFINE_MESSAGE_EVENT(gb_message_recv_response);
/*
* Occurs after an operation has been canceled, possibly before the
* cancellation is complete.
*/
DEFINE_MESSAGE_EVENT(gb_message_cancel_outgoing);
/*
* Occurs when an incoming request is cancelled; if the response has
* been queued for sending, this occurs after it is sent.
*/
DEFINE_MESSAGE_EVENT(gb_message_cancel_incoming);
#undef DEFINE_MESSAGE_EVENT
DECLARE_EVENT_CLASS(gb_operation,
TP_PROTO(struct gb_operation *operation),
TP_ARGS(operation),
TP_STRUCT__entry(
__field(u16, cport_id) /* CPort of HD side of connection */
__field(u16, id) /* Operation ID */
__field(u8, type)
__field(unsigned long, flags)
__field(int, active)
__field(int, waiters)
__field(int, errno)
),
TP_fast_assign(
__entry->cport_id = operation->connection->hd_cport_id;
__entry->id = operation->id;
__entry->type = operation->type;
__entry->flags = operation->flags;
__entry->active = operation->active;
__entry->waiters = atomic_read(&operation->waiters);
__entry->errno = operation->errno;
),
TP_printk("id=%04x type=0x%02x cport_id=%04x flags=0x%lx active=%d waiters=%d errno=%d",
__entry->id, __entry->cport_id, __entry->type, __entry->flags,
__entry->active, __entry->waiters, __entry->errno)
);
#define DEFINE_OPERATION_EVENT(name) \
DEFINE_EVENT(gb_operation, name, \
TP_PROTO(struct gb_operation *operation), \
TP_ARGS(operation))
/*
* Occurs after a new operation is created for an outgoing request
* has been successfully created.
*/
DEFINE_OPERATION_EVENT(gb_operation_create);
/*
* Occurs after a new operation has been created for an incoming
* request has been successfully created and initialized.
*/
DEFINE_OPERATION_EVENT(gb_operation_create_incoming);
/*
* Occurs when the last reference to an operation has been dropped,
* prior to freeing resources.
*/
DEFINE_OPERATION_EVENT(gb_operation_destroy);
/*
* Occurs when an operation has been marked active, after updating
* its active count.
*/
DEFINE_OPERATION_EVENT(gb_operation_get_active);
/*
* Occurs when an operation has been marked active, before updating
* its active count.
*/
DEFINE_OPERATION_EVENT(gb_operation_put_active);
#undef DEFINE_OPERATION_EVENT
DECLARE_EVENT_CLASS(gb_module,
TP_PROTO(struct gb_module *module),
TP_ARGS(module),
TP_STRUCT__entry(
__field(int, hd_bus_id)
__field(u8, module_id)
__field(u8, num_interfaces)
__field(bool, disconnected)
),
TP_fast_assign(
__entry->hd_bus_id = module->hd->bus_id;
__entry->module_id = module->module_id;
__entry->disconnected = module->disconnected;
),
TP_printk("greybus: hd_bus_id=%d module_id=%hhu disconnected=%u",
__entry->hd_bus_id, __entry->module_id, __entry->disconnected)
);
#define DEFINE_MODULE_EVENT(name) \
DEFINE_EVENT(gb_module, name, \
TP_PROTO(struct gb_module *module), \
TP_ARGS(module))
/*
* Occurs after a new module is successfully created, before
* creating any of its interfaces.
*/
DEFINE_MODULE_EVENT(gb_module_create);
/*
* Occurs after the last reference to a module has been dropped.
*/
DEFINE_MODULE_EVENT(gb_module_release);
/*
* Occurs after a module is successfully created, before registering
* any of its interfaces.
*/
DEFINE_MODULE_EVENT(gb_module_add);
/*
* Occurs when a module is deleted, before deregistering its
* interfaces.
*/
DEFINE_MODULE_EVENT(gb_module_del);
#undef DEFINE_MODULE_EVENT
DECLARE_EVENT_CLASS(gb_host_device,
TP_PROTO(struct gb_host_device *hd),
TP_ARGS(hd),
TP_STRUCT__entry(
__field(int, bus_id)
__field(u8, num_cports)
__field(size_t, buffer_size_max)
),
TP_fast_assign(
__entry->bus_id = hd->bus_id;
__entry->num_cports = hd->num_cports;
__entry->buffer_size_max = hd->buffer_size_max;
),
TP_printk("greybus: bus_id=%d num_cports=%hu mtu=%zu",
__entry->bus_id, __entry->num_cports,
__entry->buffer_size_max)
);
#define DEFINE_HD_EVENT(name) \
DEFINE_EVENT(gb_host_device, name, \
TP_PROTO(struct gb_host_device *hd), \
TP_ARGS(hd))
/*
* Occurs after a new host device is successfully created, before
* its SVC has been set up.
*/
DEFINE_HD_EVENT(gb_hd_create);
/*
* Occurs after the last reference to a host device has been
* dropped.
*/
DEFINE_HD_EVENT(gb_hd_release);
/*
* Occurs after a new host device has been added, after the
* connection to its SVC has * been enabled.
*/
DEFINE_HD_EVENT(gb_hd_add);
/*
* Occurs when a host device is being disconnected from the AP USB
* host controller.
*/
DEFINE_HD_EVENT(gb_hd_del);
#undef DEFINE_HD_EVENT
#endif /* _TRACE_GREYBUS_H */
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
/*
* TRACE_INCLUDE_FILE is not needed if the filename and TRACE_SYSTEM are equal
*/
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE greybus_trace
#include <trace/define_trace.h>
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