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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-08-25 07:54:27 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-08-27 19:02:59 +0200
commitec0ad868173da8a75121f9dc116a5d5478ff614d (patch)
tree7e43809be8ee2e9f9fb8c9ed0a80de9d1c737b18 /include/linux/greybus
parent9c31973907fb157ac91f61f479e8bf43bb43aded (diff)
staging: greybus: move core include files to include/linux/greybus/
With the goal of moving the core of the greybus code out of staging, the include files need to be moved to include/linux/greybus.h and include/linux/greybus/ Cc: Vaibhav Hiremath <hvaibhav.linux@gmail.com> Cc: Johan Hovold <johan@kernel.org> Cc: Vaibhav Agarwal <vaibhav.sr@gmail.com> Cc: Rui Miguel Silva <rmfrfs@gmail.com> Cc: David Lin <dtwlin@gmail.com> Cc: "Bryan O'Donoghue" <pure.logic@nexus-software.ie> Cc: greybus-dev@lists.linaro.org Cc: devel@driverdev.osuosl.org Acked-by: Mark Greer <mgreer@animalcreek.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Alex Elder <elder@kernel.org> Link: https://lore.kernel.org/r/20190825055429.18547-8-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/greybus')
-rw-r--r--include/linux/greybus/bundle.h89
-rw-r--r--include/linux/greybus/connection.h128
-rw-r--r--include/linux/greybus/control.h57
-rw-r--r--include/linux/greybus/greybus_id.h27
-rw-r--r--include/linux/greybus/greybus_manifest.h178
-rw-r--r--include/linux/greybus/greybus_protocols.h2176
-rw-r--r--include/linux/greybus/hd.h82
-rw-r--r--include/linux/greybus/interface.h82
-rw-r--r--include/linux/greybus/manifest.h15
-rw-r--r--include/linux/greybus/module.h33
-rw-r--r--include/linux/greybus/operation.h224
-rw-r--r--include/linux/greybus/svc.h101
12 files changed, 3192 insertions, 0 deletions
diff --git a/include/linux/greybus/bundle.h b/include/linux/greybus/bundle.h
new file mode 100644
index 000000000000..8734d2055657
--- /dev/null
+++ b/include/linux/greybus/bundle.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus bundles
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#ifndef __BUNDLE_H
+#define __BUNDLE_H
+
+#include <linux/list.h>
+
+#define BUNDLE_ID_NONE U8_MAX
+
+/* Greybus "public" definitions" */
+struct gb_bundle {
+ struct device dev;
+ struct gb_interface *intf;
+
+ u8 id;
+ u8 class;
+ u8 class_major;
+ u8 class_minor;
+
+ size_t num_cports;
+ struct greybus_descriptor_cport *cport_desc;
+
+ struct list_head connections;
+ u8 *state;
+
+ struct list_head links; /* interface->bundles */
+};
+#define to_gb_bundle(d) container_of(d, struct gb_bundle, dev)
+
+/* Greybus "private" definitions" */
+struct gb_bundle *gb_bundle_create(struct gb_interface *intf, u8 bundle_id,
+ u8 class);
+int gb_bundle_add(struct gb_bundle *bundle);
+void gb_bundle_destroy(struct gb_bundle *bundle);
+
+/* Bundle Runtime PM wrappers */
+#ifdef CONFIG_PM
+static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle)
+{
+ int retval;
+
+ retval = pm_runtime_get_sync(&bundle->dev);
+ if (retval < 0) {
+ dev_err(&bundle->dev,
+ "pm_runtime_get_sync failed: %d\n", retval);
+ pm_runtime_put_noidle(&bundle->dev);
+ return retval;
+ }
+
+ return 0;
+}
+
+static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle)
+{
+ int retval;
+
+ pm_runtime_mark_last_busy(&bundle->dev);
+ retval = pm_runtime_put_autosuspend(&bundle->dev);
+
+ return retval;
+}
+
+static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle)
+{
+ pm_runtime_get_noresume(&bundle->dev);
+}
+
+static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle)
+{
+ pm_runtime_put_noidle(&bundle->dev);
+}
+
+#else
+static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle)
+{ return 0; }
+static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle)
+{ return 0; }
+
+static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle) {}
+static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle) {}
+#endif
+
+#endif /* __BUNDLE_H */
diff --git a/include/linux/greybus/connection.h b/include/linux/greybus/connection.h
new file mode 100644
index 000000000000..5ca3befc0636
--- /dev/null
+++ b/include/linux/greybus/connection.h
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus connections
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#ifndef __CONNECTION_H
+#define __CONNECTION_H
+
+#include <linux/list.h>
+#include <linux/kfifo.h>
+
+#define GB_CONNECTION_FLAG_CSD BIT(0)
+#define GB_CONNECTION_FLAG_NO_FLOWCTRL BIT(1)
+#define GB_CONNECTION_FLAG_OFFLOADED BIT(2)
+#define GB_CONNECTION_FLAG_CDSI1 BIT(3)
+#define GB_CONNECTION_FLAG_CONTROL BIT(4)
+#define GB_CONNECTION_FLAG_HIGH_PRIO BIT(5)
+
+#define GB_CONNECTION_FLAG_CORE_MASK GB_CONNECTION_FLAG_CONTROL
+
+enum gb_connection_state {
+ GB_CONNECTION_STATE_DISABLED = 0,
+ GB_CONNECTION_STATE_ENABLED_TX = 1,
+ GB_CONNECTION_STATE_ENABLED = 2,
+ GB_CONNECTION_STATE_DISCONNECTING = 3,
+};
+
+struct gb_operation;
+
+typedef int (*gb_request_handler_t)(struct gb_operation *);
+
+struct gb_connection {
+ struct gb_host_device *hd;
+ struct gb_interface *intf;
+ struct gb_bundle *bundle;
+ struct kref kref;
+ u16 hd_cport_id;
+ u16 intf_cport_id;
+
+ struct list_head hd_links;
+ struct list_head bundle_links;
+
+ gb_request_handler_t handler;
+ unsigned long flags;
+
+ struct mutex mutex;
+ spinlock_t lock;
+ enum gb_connection_state state;
+ struct list_head operations;
+
+ char name[16];
+ struct workqueue_struct *wq;
+
+ atomic_t op_cycle;
+
+ void *private;
+
+ bool mode_switch;
+};
+
+struct gb_connection *gb_connection_create_static(struct gb_host_device *hd,
+ u16 hd_cport_id, gb_request_handler_t handler);
+struct gb_connection *gb_connection_create_control(struct gb_interface *intf);
+struct gb_connection *gb_connection_create(struct gb_bundle *bundle,
+ u16 cport_id, gb_request_handler_t handler);
+struct gb_connection *gb_connection_create_flags(struct gb_bundle *bundle,
+ u16 cport_id, gb_request_handler_t handler,
+ unsigned long flags);
+struct gb_connection *gb_connection_create_offloaded(struct gb_bundle *bundle,
+ u16 cport_id, unsigned long flags);
+void gb_connection_destroy(struct gb_connection *connection);
+
+static inline bool gb_connection_is_static(struct gb_connection *connection)
+{
+ return !connection->intf;
+}
+
+int gb_connection_enable(struct gb_connection *connection);
+int gb_connection_enable_tx(struct gb_connection *connection);
+void gb_connection_disable_rx(struct gb_connection *connection);
+void gb_connection_disable(struct gb_connection *connection);
+void gb_connection_disable_forced(struct gb_connection *connection);
+
+void gb_connection_mode_switch_prepare(struct gb_connection *connection);
+void gb_connection_mode_switch_complete(struct gb_connection *connection);
+
+void greybus_data_rcvd(struct gb_host_device *hd, u16 cport_id,
+ u8 *data, size_t length);
+
+void gb_connection_latency_tag_enable(struct gb_connection *connection);
+void gb_connection_latency_tag_disable(struct gb_connection *connection);
+
+static inline bool gb_connection_e2efc_enabled(struct gb_connection *connection)
+{
+ return !(connection->flags & GB_CONNECTION_FLAG_CSD);
+}
+
+static inline bool
+gb_connection_flow_control_disabled(struct gb_connection *connection)
+{
+ return connection->flags & GB_CONNECTION_FLAG_NO_FLOWCTRL;
+}
+
+static inline bool gb_connection_is_offloaded(struct gb_connection *connection)
+{
+ return connection->flags & GB_CONNECTION_FLAG_OFFLOADED;
+}
+
+static inline bool gb_connection_is_control(struct gb_connection *connection)
+{
+ return connection->flags & GB_CONNECTION_FLAG_CONTROL;
+}
+
+static inline void *gb_connection_get_data(struct gb_connection *connection)
+{
+ return connection->private;
+}
+
+static inline void gb_connection_set_data(struct gb_connection *connection,
+ void *data)
+{
+ connection->private = data;
+}
+
+#endif /* __CONNECTION_H */
diff --git a/include/linux/greybus/control.h b/include/linux/greybus/control.h
new file mode 100644
index 000000000000..3a29ec05f631
--- /dev/null
+++ b/include/linux/greybus/control.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus CPort control protocol
+ *
+ * Copyright 2015 Google Inc.
+ * Copyright 2015 Linaro Ltd.
+ */
+
+#ifndef __CONTROL_H
+#define __CONTROL_H
+
+struct gb_control {
+ struct device dev;
+ struct gb_interface *intf;
+
+ struct gb_connection *connection;
+
+ u8 protocol_major;
+ u8 protocol_minor;
+
+ bool has_bundle_activate;
+ bool has_bundle_version;
+
+ char *vendor_string;
+ char *product_string;
+};
+#define to_gb_control(d) container_of(d, struct gb_control, dev)
+
+struct gb_control *gb_control_create(struct gb_interface *intf);
+int gb_control_enable(struct gb_control *control);
+void gb_control_disable(struct gb_control *control);
+int gb_control_suspend(struct gb_control *control);
+int gb_control_resume(struct gb_control *control);
+int gb_control_add(struct gb_control *control);
+void gb_control_del(struct gb_control *control);
+struct gb_control *gb_control_get(struct gb_control *control);
+void gb_control_put(struct gb_control *control);
+
+int gb_control_get_bundle_versions(struct gb_control *control);
+int gb_control_connected_operation(struct gb_control *control, u16 cport_id);
+int gb_control_disconnected_operation(struct gb_control *control, u16 cport_id);
+int gb_control_disconnecting_operation(struct gb_control *control,
+ u16 cport_id);
+int gb_control_mode_switch_operation(struct gb_control *control);
+void gb_control_mode_switch_prepare(struct gb_control *control);
+void gb_control_mode_switch_complete(struct gb_control *control);
+int gb_control_get_manifest_size_operation(struct gb_interface *intf);
+int gb_control_get_manifest_operation(struct gb_interface *intf, void *manifest,
+ size_t size);
+int gb_control_bundle_suspend(struct gb_control *control, u8 bundle_id);
+int gb_control_bundle_resume(struct gb_control *control, u8 bundle_id);
+int gb_control_bundle_deactivate(struct gb_control *control, u8 bundle_id);
+int gb_control_bundle_activate(struct gb_control *control, u8 bundle_id);
+int gb_control_interface_suspend_prepare(struct gb_control *control);
+int gb_control_interface_deactivate_prepare(struct gb_control *control);
+int gb_control_interface_hibernate_abort(struct gb_control *control);
+#endif /* __CONTROL_H */
diff --git a/include/linux/greybus/greybus_id.h b/include/linux/greybus/greybus_id.h
new file mode 100644
index 000000000000..f4c8440093e4
--- /dev/null
+++ b/include/linux/greybus/greybus_id.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* FIXME
+ * move this to include/linux/mod_devicetable.h when merging
+ */
+
+#ifndef __LINUX_GREYBUS_ID_H
+#define __LINUX_GREYBUS_ID_H
+
+#include <linux/types.h>
+#include <linux/mod_devicetable.h>
+
+
+struct greybus_bundle_id {
+ __u16 match_flags;
+ __u32 vendor;
+ __u32 product;
+ __u8 class;
+
+ kernel_ulong_t driver_info __aligned(sizeof(kernel_ulong_t));
+};
+
+/* Used to match the greybus_bundle_id */
+#define GREYBUS_ID_MATCH_VENDOR BIT(0)
+#define GREYBUS_ID_MATCH_PRODUCT BIT(1)
+#define GREYBUS_ID_MATCH_CLASS BIT(2)
+
+#endif /* __LINUX_GREYBUS_ID_H */
diff --git a/include/linux/greybus/greybus_manifest.h b/include/linux/greybus/greybus_manifest.h
new file mode 100644
index 000000000000..db68f7e7d5a7
--- /dev/null
+++ b/include/linux/greybus/greybus_manifest.h
@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus manifest definition
+ *
+ * See "Greybus Application Protocol" document (version 0.1) for
+ * details on these values and structures.
+ *
+ * Copyright 2014-2015 Google Inc.
+ * Copyright 2014-2015 Linaro Ltd.
+ *
+ * Released under the GPLv2 and BSD licenses.
+ */
+
+#ifndef __GREYBUS_MANIFEST_H
+#define __GREYBUS_MANIFEST_H
+
+enum greybus_descriptor_type {
+ GREYBUS_TYPE_INVALID = 0x00,
+ GREYBUS_TYPE_INTERFACE = 0x01,
+ GREYBUS_TYPE_STRING = 0x02,
+ GREYBUS_TYPE_BUNDLE = 0x03,
+ GREYBUS_TYPE_CPORT = 0x04,
+};
+
+enum greybus_protocol {
+ GREYBUS_PROTOCOL_CONTROL = 0x00,
+ /* 0x01 is unused */
+ GREYBUS_PROTOCOL_GPIO = 0x02,
+ GREYBUS_PROTOCOL_I2C = 0x03,
+ GREYBUS_PROTOCOL_UART = 0x04,
+ GREYBUS_PROTOCOL_HID = 0x05,
+ GREYBUS_PROTOCOL_USB = 0x06,
+ GREYBUS_PROTOCOL_SDIO = 0x07,
+ GREYBUS_PROTOCOL_POWER_SUPPLY = 0x08,
+ GREYBUS_PROTOCOL_PWM = 0x09,
+ /* 0x0a is unused */
+ GREYBUS_PROTOCOL_SPI = 0x0b,
+ GREYBUS_PROTOCOL_DISPLAY = 0x0c,
+ GREYBUS_PROTOCOL_CAMERA_MGMT = 0x0d,
+ GREYBUS_PROTOCOL_SENSOR = 0x0e,
+ GREYBUS_PROTOCOL_LIGHTS = 0x0f,
+ GREYBUS_PROTOCOL_VIBRATOR = 0x10,
+ GREYBUS_PROTOCOL_LOOPBACK = 0x11,
+ GREYBUS_PROTOCOL_AUDIO_MGMT = 0x12,
+ GREYBUS_PROTOCOL_AUDIO_DATA = 0x13,
+ GREYBUS_PROTOCOL_SVC = 0x14,
+ GREYBUS_PROTOCOL_BOOTROM = 0x15,
+ GREYBUS_PROTOCOL_CAMERA_DATA = 0x16,
+ GREYBUS_PROTOCOL_FW_DOWNLOAD = 0x17,
+ GREYBUS_PROTOCOL_FW_MANAGEMENT = 0x18,
+ GREYBUS_PROTOCOL_AUTHENTICATION = 0x19,
+ GREYBUS_PROTOCOL_LOG = 0x1a,
+ /* ... */
+ GREYBUS_PROTOCOL_RAW = 0xfe,
+ GREYBUS_PROTOCOL_VENDOR = 0xff,
+};
+
+enum greybus_class_type {
+ GREYBUS_CLASS_CONTROL = 0x00,
+ /* 0x01 is unused */
+ /* 0x02 is unused */
+ /* 0x03 is unused */
+ /* 0x04 is unused */
+ GREYBUS_CLASS_HID = 0x05,
+ /* 0x06 is unused */
+ /* 0x07 is unused */
+ GREYBUS_CLASS_POWER_SUPPLY = 0x08,
+ /* 0x09 is unused */
+ GREYBUS_CLASS_BRIDGED_PHY = 0x0a,
+ /* 0x0b is unused */
+ GREYBUS_CLASS_DISPLAY = 0x0c,
+ GREYBUS_CLASS_CAMERA = 0x0d,
+ GREYBUS_CLASS_SENSOR = 0x0e,
+ GREYBUS_CLASS_LIGHTS = 0x0f,
+ GREYBUS_CLASS_VIBRATOR = 0x10,
+ GREYBUS_CLASS_LOOPBACK = 0x11,
+ GREYBUS_CLASS_AUDIO = 0x12,
+ /* 0x13 is unused */
+ /* 0x14 is unused */
+ GREYBUS_CLASS_BOOTROM = 0x15,
+ GREYBUS_CLASS_FW_MANAGEMENT = 0x16,
+ GREYBUS_CLASS_LOG = 0x17,
+ /* ... */
+ GREYBUS_CLASS_RAW = 0xfe,
+ GREYBUS_CLASS_VENDOR = 0xff,
+};
+
+enum {
+ GREYBUS_INTERFACE_FEATURE_TIMESYNC = BIT(0),
+};
+
+/*
+ * The string in a string descriptor is not NUL-terminated. The
+ * size of the descriptor will be rounded up to a multiple of 4
+ * bytes, by padding the string with 0x00 bytes if necessary.
+ */
+struct greybus_descriptor_string {
+ __u8 length;
+ __u8 id;
+ __u8 string[0];
+} __packed;
+
+/*
+ * An interface descriptor describes information about an interface as a whole,
+ * *not* the functions within it.
+ */
+struct greybus_descriptor_interface {
+ __u8 vendor_stringid;
+ __u8 product_stringid;
+ __u8 features;
+ __u8 pad;
+} __packed;
+
+/*
+ * An bundle descriptor defines an identification number and a class for
+ * each bundle.
+ *
+ * @id: Uniquely identifies a bundle within a interface, its sole purpose is to
+ * allow CPort descriptors to specify which bundle they are associated with.
+ * The first bundle will have id 0, second will have 1 and so on.
+ *
+ * The largest CPort id associated with an bundle (defined by a
+ * CPort descriptor in the manifest) is used to determine how to
+ * encode the device id and module number in UniPro packets
+ * that use the bundle.
+ *
+ * @class: It is used by kernel to know the functionality provided by the
+ * bundle and will be matched against drivers functinality while probing greybus
+ * driver. It should contain one of the values defined in
+ * 'enum greybus_class_type'.
+ *
+ */
+struct greybus_descriptor_bundle {
+ __u8 id; /* interface-relative id (0..) */
+ __u8 class;
+ __u8 pad[2];
+} __packed;
+
+/*
+ * A CPort descriptor indicates the id of the bundle within the
+ * module it's associated with, along with the CPort id used to
+ * address the CPort. The protocol id defines the format of messages
+ * exchanged using the CPort.
+ */
+struct greybus_descriptor_cport {
+ __le16 id;
+ __u8 bundle;
+ __u8 protocol_id; /* enum greybus_protocol */
+} __packed;
+
+struct greybus_descriptor_header {
+ __le16 size;
+ __u8 type; /* enum greybus_descriptor_type */
+ __u8 pad;
+} __packed;
+
+struct greybus_descriptor {
+ struct greybus_descriptor_header header;
+ union {
+ struct greybus_descriptor_string string;
+ struct greybus_descriptor_interface interface;
+ struct greybus_descriptor_bundle bundle;
+ struct greybus_descriptor_cport cport;
+ };
+} __packed;
+
+struct greybus_manifest_header {
+ __le16 size;
+ __u8 version_major;
+ __u8 version_minor;
+} __packed;
+
+struct greybus_manifest {
+ struct greybus_manifest_header header;
+ struct greybus_descriptor descriptors[0];
+} __packed;
+
+#endif /* __GREYBUS_MANIFEST_H */
diff --git a/include/linux/greybus/greybus_protocols.h b/include/linux/greybus/greybus_protocols.h
new file mode 100644
index 000000000000..5f34d1effb59
--- /dev/null
+++ b/include/linux/greybus/greybus_protocols.h
@@ -0,0 +1,2176 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Copyright(c) 2014 - 2015 Google Inc. All rights reserved.
+ * Copyright(c) 2014 - 2015 Linaro Ltd. All rights reserved.
+ */
+
+#ifndef __GREYBUS_PROTOCOLS_H
+#define __GREYBUS_PROTOCOLS_H
+
+/* Fixed IDs for control/svc protocols */
+
+/* SVC switch-port device ids */
+#define GB_SVC_DEVICE_ID_SVC 0
+#define GB_SVC_DEVICE_ID_AP 1
+#define GB_SVC_DEVICE_ID_MIN 2
+#define GB_SVC_DEVICE_ID_MAX 31
+
+#define GB_SVC_CPORT_ID 0
+#define GB_CONTROL_BUNDLE_ID 0
+#define GB_CONTROL_CPORT_ID 0
+
+
+/*
+ * All operation messages (both requests and responses) begin with
+ * a header that encodes the size of the message (header included).
+ * This header also contains a unique identifier, that associates a
+ * response message with its operation. The header contains an
+ * operation type field, whose interpretation is dependent on what
+ * type of protocol is used over the connection. The high bit
+ * (0x80) of the operation type field is used to indicate whether
+ * the message is a request (clear) or a response (set).
+ *
+ * Response messages include an additional result byte, which
+ * communicates the result of the corresponding request. A zero
+ * result value means the operation completed successfully. Any
+ * other value indicates an error; in this case, the payload of the
+ * response message (if any) is ignored. The result byte must be
+ * zero in the header for a request message.
+ *
+ * The wire format for all numeric fields in the header is little
+ * endian. Any operation-specific data begins immediately after the
+ * header.
+ */
+struct gb_operation_msg_hdr {
+ __le16 size; /* Size in bytes of header + payload */
+ __le16 operation_id; /* Operation unique id */
+ __u8 type; /* E.g GB_I2C_TYPE_* or GB_GPIO_TYPE_* */
+ __u8 result; /* Result of request (in responses only) */
+ __u8 pad[2]; /* must be zero (ignore when read) */
+} __packed;
+
+
+/* Generic request types */
+#define GB_REQUEST_TYPE_CPORT_SHUTDOWN 0x00
+#define GB_REQUEST_TYPE_INVALID 0x7f
+
+struct gb_cport_shutdown_request {
+ __u8 phase;
+} __packed;
+
+
+/* Control Protocol */
+
+/* Greybus control request types */
+#define GB_CONTROL_TYPE_VERSION 0x01
+#define GB_CONTROL_TYPE_PROBE_AP 0x02
+#define GB_CONTROL_TYPE_GET_MANIFEST_SIZE 0x03
+#define GB_CONTROL_TYPE_GET_MANIFEST 0x04
+#define GB_CONTROL_TYPE_CONNECTED 0x05
+#define GB_CONTROL_TYPE_DISCONNECTED 0x06
+#define GB_CONTROL_TYPE_TIMESYNC_ENABLE 0x07
+#define GB_CONTROL_TYPE_TIMESYNC_DISABLE 0x08
+#define GB_CONTROL_TYPE_TIMESYNC_AUTHORITATIVE 0x09
+/* Unused 0x0a */
+#define GB_CONTROL_TYPE_BUNDLE_VERSION 0x0b
+#define GB_CONTROL_TYPE_DISCONNECTING 0x0c
+#define GB_CONTROL_TYPE_TIMESYNC_GET_LAST_EVENT 0x0d
+#define GB_CONTROL_TYPE_MODE_SWITCH 0x0e
+#define GB_CONTROL_TYPE_BUNDLE_SUSPEND 0x0f
+#define GB_CONTROL_TYPE_BUNDLE_RESUME 0x10
+#define GB_CONTROL_TYPE_BUNDLE_DEACTIVATE 0x11
+#define GB_CONTROL_TYPE_BUNDLE_ACTIVATE 0x12
+#define GB_CONTROL_TYPE_INTF_SUSPEND_PREPARE 0x13
+#define GB_CONTROL_TYPE_INTF_DEACTIVATE_PREPARE 0x14
+#define GB_CONTROL_TYPE_INTF_HIBERNATE_ABORT 0x15
+
+struct gb_control_version_request {
+ __u8 major;
+ __u8 minor;
+} __packed;
+
+struct gb_control_version_response {
+ __u8 major;
+ __u8 minor;
+} __packed;
+
+struct gb_control_bundle_version_request {
+ __u8 bundle_id;
+} __packed;
+
+struct gb_control_bundle_version_response {
+ __u8 major;
+ __u8 minor;
+} __packed;
+
+/* Control protocol manifest get size request has no payload*/
+struct gb_control_get_manifest_size_response {
+ __le16 size;
+} __packed;
+
+/* Control protocol manifest get request has no payload */
+struct gb_control_get_manifest_response {
+ __u8 data[0];
+} __packed;
+
+/* Control protocol [dis]connected request */
+struct gb_control_connected_request {
+ __le16 cport_id;
+} __packed;
+
+struct gb_control_disconnecting_request {
+ __le16 cport_id;
+} __packed;
+/* disconnecting response has no payload */
+
+struct gb_control_disconnected_request {
+ __le16 cport_id;
+} __packed;
+/* Control protocol [dis]connected response has no payload */
+
+/*
+ * All Bundle power management operations use the same request and response
+ * layout and status codes.
+ */
+
+#define GB_CONTROL_BUNDLE_PM_OK 0x00
+#define GB_CONTROL_BUNDLE_PM_INVAL 0x01
+#define GB_CONTROL_BUNDLE_PM_BUSY 0x02
+#define GB_CONTROL_BUNDLE_PM_FAIL 0x03
+#define GB_CONTROL_BUNDLE_PM_NA 0x04
+
+struct gb_control_bundle_pm_request {
+ __u8 bundle_id;
+} __packed;
+
+struct gb_control_bundle_pm_response {
+ __u8 status;
+} __packed;
+
+/*
+ * Interface Suspend Prepare and Deactivate Prepare operations use the same
+ * response layout and error codes. Define a single response structure and reuse
+ * it. Both operations have no payload.
+ */
+
+#define GB_CONTROL_INTF_PM_OK 0x00
+#define GB_CONTROL_INTF_PM_BUSY 0x01
+#define GB_CONTROL_INTF_PM_NA 0x02
+
+struct gb_control_intf_pm_response {
+ __u8 status;
+} __packed;
+
+/* APBridge protocol */
+
+/* request APB1 log */
+#define GB_APB_REQUEST_LOG 0x02
+
+/* request to map a cport to bulk in and bulk out endpoints */
+#define GB_APB_REQUEST_EP_MAPPING 0x03
+
+/* request to get the number of cports available */
+#define GB_APB_REQUEST_CPORT_COUNT 0x04
+
+/* request to reset a cport state */
+#define GB_APB_REQUEST_RESET_CPORT 0x05
+
+/* request to time the latency of messages on a given cport */
+#define GB_APB_REQUEST_LATENCY_TAG_EN 0x06
+#define GB_APB_REQUEST_LATENCY_TAG_DIS 0x07
+
+/* request to control the CSI transmitter */
+#define GB_APB_REQUEST_CSI_TX_CONTROL 0x08
+
+/* request to control audio streaming */
+#define GB_APB_REQUEST_AUDIO_CONTROL 0x09
+
+/* TimeSync requests */
+#define GB_APB_REQUEST_TIMESYNC_ENABLE 0x0d
+#define GB_APB_REQUEST_TIMESYNC_DISABLE 0x0e
+#define GB_APB_REQUEST_TIMESYNC_AUTHORITATIVE 0x0f
+#define GB_APB_REQUEST_TIMESYNC_GET_LAST_EVENT 0x10
+
+/* requests to set Greybus CPort flags */
+#define GB_APB_REQUEST_CPORT_FLAGS 0x11
+
+/* ARPC request */
+#define GB_APB_REQUEST_ARPC_RUN 0x12
+
+struct gb_apb_request_cport_flags {
+ __le32 flags;
+#define GB_APB_CPORT_FLAG_CONTROL 0x01
+#define GB_APB_CPORT_FLAG_HIGH_PRIO 0x02
+} __packed;
+
+
+/* Firmware Download Protocol */
+
+/* Request Types */
+#define GB_FW_DOWNLOAD_TYPE_FIND_FIRMWARE 0x01
+#define GB_FW_DOWNLOAD_TYPE_FETCH_FIRMWARE 0x02
+#define GB_FW_DOWNLOAD_TYPE_RELEASE_FIRMWARE 0x03
+
+#define GB_FIRMWARE_TAG_MAX_SIZE 10
+
+/* firmware download find firmware request/response */
+struct gb_fw_download_find_firmware_request {
+ __u8 firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+} __packed;
+
+struct gb_fw_download_find_firmware_response {
+ __u8 firmware_id;
+ __le32 size;
+} __packed;
+
+/* firmware download fetch firmware request/response */
+struct gb_fw_download_fetch_firmware_request {
+ __u8 firmware_id;
+ __le32 offset;
+ __le32 size;
+} __packed;
+
+struct gb_fw_download_fetch_firmware_response {
+ __u8 data[0];
+} __packed;
+
+/* firmware download release firmware request */
+struct gb_fw_download_release_firmware_request {
+ __u8 firmware_id;
+} __packed;
+/* firmware download release firmware response has no payload */
+
+
+/* Firmware Management Protocol */
+
+/* Request Types */
+#define GB_FW_MGMT_TYPE_INTERFACE_FW_VERSION 0x01
+#define GB_FW_MGMT_TYPE_LOAD_AND_VALIDATE_FW 0x02
+#define GB_FW_MGMT_TYPE_LOADED_FW 0x03
+#define GB_FW_MGMT_TYPE_BACKEND_FW_VERSION 0x04
+#define GB_FW_MGMT_TYPE_BACKEND_FW_UPDATE 0x05
+#define GB_FW_MGMT_TYPE_BACKEND_FW_UPDATED 0x06
+
+#define GB_FW_LOAD_METHOD_UNIPRO 0x01
+#define GB_FW_LOAD_METHOD_INTERNAL 0x02
+
+#define GB_FW_LOAD_STATUS_FAILED 0x00
+#define GB_FW_LOAD_STATUS_UNVALIDATED 0x01
+#define GB_FW_LOAD_STATUS_VALIDATED 0x02
+#define GB_FW_LOAD_STATUS_VALIDATION_FAILED 0x03
+
+#define GB_FW_BACKEND_FW_STATUS_SUCCESS 0x01
+#define GB_FW_BACKEND_FW_STATUS_FAIL_FIND 0x02
+#define GB_FW_BACKEND_FW_STATUS_FAIL_FETCH 0x03
+#define GB_FW_BACKEND_FW_STATUS_FAIL_WRITE 0x04
+#define GB_FW_BACKEND_FW_STATUS_INT 0x05
+#define GB_FW_BACKEND_FW_STATUS_RETRY 0x06
+#define GB_FW_BACKEND_FW_STATUS_NOT_SUPPORTED 0x07
+
+#define GB_FW_BACKEND_VERSION_STATUS_SUCCESS 0x01
+#define GB_FW_BACKEND_VERSION_STATUS_NOT_AVAILABLE 0x02
+#define GB_FW_BACKEND_VERSION_STATUS_NOT_SUPPORTED 0x03
+#define GB_FW_BACKEND_VERSION_STATUS_RETRY 0x04
+#define GB_FW_BACKEND_VERSION_STATUS_FAIL_INT 0x05
+
+/* firmware management interface firmware version request has no payload */
+struct gb_fw_mgmt_interface_fw_version_response {
+ __u8 firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+ __le16 major;
+ __le16 minor;
+} __packed;
+
+/* firmware management load and validate firmware request/response */
+struct gb_fw_mgmt_load_and_validate_fw_request {
+ __u8 request_id;
+ __u8 load_method;
+ __u8 firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+} __packed;
+/* firmware management load and validate firmware response has no payload*/
+
+/* firmware management loaded firmware request */
+struct gb_fw_mgmt_loaded_fw_request {
+ __u8 request_id;
+ __u8 status;
+ __le16 major;
+ __le16 minor;
+} __packed;
+/* firmware management loaded firmware response has no payload */
+
+/* firmware management backend firmware version request/response */
+struct gb_fw_mgmt_backend_fw_version_request {
+ __u8 firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+} __packed;
+
+struct gb_fw_mgmt_backend_fw_version_response {
+ __le16 major;
+ __le16 minor;
+ __u8 status;
+} __packed;
+
+/* firmware management backend firmware update request */
+struct gb_fw_mgmt_backend_fw_update_request {
+ __u8 request_id;
+ __u8 firmware_tag[GB_FIRMWARE_TAG_MAX_SIZE];
+} __packed;
+/* firmware management backend firmware update response has no payload */
+
+/* firmware management backend firmware updated request */
+struct gb_fw_mgmt_backend_fw_updated_request {
+ __u8 request_id;
+ __u8 status;
+} __packed;
+/* firmware management backend firmware updated response has no payload */
+
+
+/* Component Authentication Protocol (CAP) */
+
+/* Request Types */
+#define GB_CAP_TYPE_GET_ENDPOINT_UID 0x01
+#define GB_CAP_TYPE_GET_IMS_CERTIFICATE 0x02
+#define GB_CAP_TYPE_AUTHENTICATE 0x03
+
+/* CAP get endpoint uid request has no payload */
+struct gb_cap_get_endpoint_uid_response {
+ __u8 uid[8];
+} __packed;
+
+/* CAP get endpoint ims certificate request/response */
+struct gb_cap_get_ims_certificate_request {
+ __le32 certificate_class;
+ __le32 certificate_id;
+} __packed;
+
+struct gb_cap_get_ims_certificate_response {
+ __u8 result_code;
+ __u8 certificate[0];
+} __packed;
+
+/* CAP authenticate request/response */
+struct gb_cap_authenticate_request {
+ __le32 auth_type;
+ __u8 uid[8];
+ __u8 challenge[32];
+} __packed;
+
+struct gb_cap_authenticate_response {
+ __u8 result_code;
+ __u8 response[64];
+ __u8 signature[0];
+} __packed;
+
+
+/* Bootrom Protocol */
+
+/* Version of the Greybus bootrom protocol we support */
+#define GB_BOOTROM_VERSION_MAJOR 0x00
+#define GB_BOOTROM_VERSION_MINOR 0x01
+
+/* Greybus bootrom request types */
+#define GB_BOOTROM_TYPE_VERSION 0x01
+#define GB_BOOTROM_TYPE_FIRMWARE_SIZE 0x02
+#define GB_BOOTROM_TYPE_GET_FIRMWARE 0x03
+#define GB_BOOTROM_TYPE_READY_TO_BOOT 0x04
+#define GB_BOOTROM_TYPE_AP_READY 0x05 /* Request with no-payload */
+#define GB_BOOTROM_TYPE_GET_VID_PID 0x06 /* Request with no-payload */
+
+/* Greybus bootrom boot stages */
+#define GB_BOOTROM_BOOT_STAGE_ONE 0x01 /* Reserved for the boot ROM */
+#define GB_BOOTROM_BOOT_STAGE_TWO 0x02 /* Bootrom package to be loaded by the boot ROM */
+#define GB_BOOTROM_BOOT_STAGE_THREE 0x03 /* Module personality package loaded by Stage 2 firmware */
+
+/* Greybus bootrom ready to boot status */
+#define GB_BOOTROM_BOOT_STATUS_INVALID 0x00 /* Firmware blob could not be validated */
+#define GB_BOOTROM_BOOT_STATUS_INSECURE 0x01 /* Firmware blob is valid but insecure */
+#define GB_BOOTROM_BOOT_STATUS_SECURE 0x02 /* Firmware blob is valid and secure */
+
+/* Max bootrom data fetch size in bytes */
+#define GB_BOOTROM_FETCH_MAX 2000
+
+struct gb_bootrom_version_request {
+ __u8 major;
+ __u8 minor;
+} __packed;
+
+struct gb_bootrom_version_response {
+ __u8 major;
+ __u8 minor;
+} __packed;
+
+/* Bootrom protocol firmware size request/response */
+struct gb_bootrom_firmware_size_request {
+ __u8 stage;
+} __packed;
+
+struct gb_bootrom_firmware_size_response {
+ __le32 size;
+} __packed;
+
+/* Bootrom protocol get firmware request/response */
+struct gb_bootrom_get_firmware_request {
+ __le32 offset;
+ __le32 size;
+} __packed;
+
+struct gb_bootrom_get_firmware_response {
+ __u8 data[0];
+} __packed;
+
+/* Bootrom protocol Ready to boot request */
+struct gb_bootrom_ready_to_boot_request {
+ __u8 status;
+} __packed;
+/* Bootrom protocol Ready to boot response has no payload */
+
+/* Bootrom protocol get VID/PID request has no payload */
+struct gb_bootrom_get_vid_pid_response {
+ __le32 vendor_id;
+ __le32 product_id;
+} __packed;
+
+
+/* Power Supply */
+
+/* Greybus power supply request types */
+#define GB_POWER_SUPPLY_TYPE_GET_SUPPLIES 0x02
+#define GB_POWER_SUPPLY_TYPE_GET_DESCRIPTION 0x03
+#define GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS 0x04
+#define GB_POWER_SUPPLY_TYPE_GET_PROPERTY 0x05
+#define GB_POWER_SUPPLY_TYPE_SET_PROPERTY 0x06
+#define GB_POWER_SUPPLY_TYPE_EVENT 0x07
+
+/* Greybus power supply battery technologies types */
+#define GB_POWER_SUPPLY_TECH_UNKNOWN 0x0000
+#define GB_POWER_SUPPLY_TECH_NiMH 0x0001
+#define GB_POWER_SUPPLY_TECH_LION 0x0002
+#define GB_POWER_SUPPLY_TECH_LIPO 0x0003
+#define GB_POWER_SUPPLY_TECH_LiFe 0x0004
+#define GB_POWER_SUPPLY_TECH_NiCd 0x0005
+#define GB_POWER_SUPPLY_TECH_LiMn 0x0006
+
+/* Greybus power supply types */
+#define GB_POWER_SUPPLY_UNKNOWN_TYPE 0x0000
+#define GB_POWER_SUPPLY_BATTERY_TYPE 0x0001
+#define GB_POWER_SUPPLY_UPS_TYPE 0x0002
+#define GB_POWER_SUPPLY_MAINS_TYPE 0x0003
+#define GB_POWER_SUPPLY_USB_TYPE 0x0004
+#define GB_POWER_SUPPLY_USB_DCP_TYPE 0x0005
+#define GB_POWER_SUPPLY_USB_CDP_TYPE 0x0006
+#define GB_POWER_SUPPLY_USB_ACA_TYPE 0x0007
+
+/* Greybus power supply health values */
+#define GB_POWER_SUPPLY_HEALTH_UNKNOWN 0x0000
+#define GB_POWER_SUPPLY_HEALTH_GOOD 0x0001
+#define GB_POWER_SUPPLY_HEALTH_OVERHEAT 0x0002
+#define GB_POWER_SUPPLY_HEALTH_DEAD 0x0003
+#define GB_POWER_SUPPLY_HEALTH_OVERVOLTAGE 0x0004
+#define GB_POWER_SUPPLY_HEALTH_UNSPEC_FAILURE 0x0005
+#define GB_POWER_SUPPLY_HEALTH_COLD 0x0006
+#define GB_POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE 0x0007
+#define GB_POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE 0x0008
+
+/* Greybus power supply status values */
+#define GB_POWER_SUPPLY_STATUS_UNKNOWN 0x0000
+#define GB_POWER_SUPPLY_STATUS_CHARGING 0x0001
+#define GB_POWER_SUPPLY_STATUS_DISCHARGING 0x0002
+#define GB_POWER_SUPPLY_STATUS_NOT_CHARGING 0x0003
+#define GB_POWER_SUPPLY_STATUS_FULL 0x0004
+
+/* Greybus power supply capacity level values */
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN 0x0000
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL 0x0001
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_LOW 0x0002
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_NORMAL 0x0003
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_HIGH 0x0004
+#define GB_POWER_SUPPLY_CAPACITY_LEVEL_FULL 0x0005
+
+/* Greybus power supply scope values */
+#define GB_POWER_SUPPLY_SCOPE_UNKNOWN 0x0000
+#define GB_POWER_SUPPLY_SCOPE_SYSTEM 0x0001
+#define GB_POWER_SUPPLY_SCOPE_DEVICE 0x0002
+
+struct gb_power_supply_get_supplies_response {
+ __u8 supplies_count;
+} __packed;
+
+struct gb_power_supply_get_description_request {
+ __u8 psy_id;
+} __packed;
+
+struct gb_power_supply_get_description_response {
+ __u8 manufacturer[32];
+ __u8 model[32];
+ __u8 serial_number[32];
+ __le16 type;
+ __u8 properties_count;
+} __packed;
+
+struct gb_power_supply_props_desc {
+ __u8 property;
+#define GB_POWER_SUPPLY_PROP_STATUS 0x00
+#define GB_POWER_SUPPLY_PROP_CHARGE_TYPE 0x01
+#define GB_POWER_SUPPLY_PROP_HEALTH 0x02
+#define GB_POWER_SUPPLY_PROP_PRESENT 0x03
+#define GB_POWER_SUPPLY_PROP_ONLINE 0x04
+#define GB_POWER_SUPPLY_PROP_AUTHENTIC 0x05
+#define GB_POWER_SUPPLY_PROP_TECHNOLOGY 0x06
+#define GB_POWER_SUPPLY_PROP_CYCLE_COUNT 0x07
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_MAX 0x08
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_MIN 0x09
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN 0x0A
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN 0x0B
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_NOW 0x0C
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_AVG 0x0D
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_OCV 0x0E
+#define GB_POWER_SUPPLY_PROP_VOLTAGE_BOOT 0x0F
+#define GB_POWER_SUPPLY_PROP_CURRENT_MAX 0x10
+#define GB_POWER_SUPPLY_PROP_CURRENT_NOW 0x11
+#define GB_POWER_SUPPLY_PROP_CURRENT_AVG 0x12
+#define GB_POWER_SUPPLY_PROP_CURRENT_BOOT 0x13
+#define GB_POWER_SUPPLY_PROP_POWER_NOW 0x14
+#define GB_POWER_SUPPLY_PROP_POWER_AVG 0x15
+#define GB_POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN 0x16
+#define GB_POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN 0x17
+#define GB_POWER_SUPPLY_PROP_CHARGE_FULL 0x18
+#define GB_POWER_SUPPLY_PROP_CHARGE_EMPTY 0x19
+#define GB_POWER_SUPPLY_PROP_CHARGE_NOW 0x1A
+#define GB_POWER_SUPPLY_PROP_CHARGE_AVG 0x1B
+#define GB_POWER_SUPPLY_PROP_CHARGE_COUNTER 0x1C
+#define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT 0x1D
+#define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX 0x1E
+#define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE 0x1F
+#define GB_POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX 0x20
+#define GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT 0x21
+#define GB_POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX 0x22
+#define GB_POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT 0x23
+#define GB_POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN 0x24
+#define GB_POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN 0x25
+#define GB_POWER_SUPPLY_PROP_ENERGY_FULL 0x26
+#define GB_POWER_SUPPLY_PROP_ENERGY_EMPTY 0x27
+#define GB_POWER_SUPPLY_PROP_ENERGY_NOW 0x28
+#define GB_POWER_SUPPLY_PROP_ENERGY_AVG 0x29
+#define GB_POWER_SUPPLY_PROP_CAPACITY 0x2A
+#define GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN 0x2B
+#define GB_POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX 0x2C
+#define GB_POWER_SUPPLY_PROP_CAPACITY_LEVEL 0x2D
+#define GB_POWER_SUPPLY_PROP_TEMP 0x2E
+#define GB_POWER_SUPPLY_PROP_TEMP_MAX 0x2F
+#define GB_POWER_SUPPLY_PROP_TEMP_MIN 0x30
+#define GB_POWER_SUPPLY_PROP_TEMP_ALERT_MIN 0x31
+#define GB_POWER_SUPPLY_PROP_TEMP_ALERT_MAX 0x32
+#define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT 0x33
+#define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN 0x34
+#define GB_POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX 0x35
+#define GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW 0x36
+#define GB_POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG 0x37
+#define GB_POWER_SUPPLY_PROP_TIME_TO_FULL_NOW 0x38
+#define GB_POWER_SUPPLY_PROP_TIME_TO_FULL_AVG 0x39
+#define GB_POWER_SUPPLY_PROP_TYPE 0x3A
+#define GB_POWER_SUPPLY_PROP_SCOPE 0x3B
+#define GB_POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT 0x3C
+#define GB_POWER_SUPPLY_PROP_CALIBRATE 0x3D
+ __u8 is_writeable;
+} __packed;
+
+struct gb_power_supply_get_property_descriptors_request {
+ __u8 psy_id;
+} __packed;
+
+struct gb_power_supply_get_property_descriptors_response {
+ __u8 properties_count;
+ struct gb_power_supply_props_desc props[];
+} __packed;
+
+struct gb_power_supply_get_property_request {
+ __u8 psy_id;
+ __u8 property;
+} __packed;
+
+struct gb_power_supply_get_property_response {
+ __le32 prop_val;
+};
+
+struct gb_power_supply_set_property_request {
+ __u8 psy_id;
+ __u8 property;
+ __le32 prop_val;
+} __packed;
+
+struct gb_power_supply_event_request {
+ __u8 psy_id;
+ __u8 event;
+#define GB_POWER_SUPPLY_UPDATE 0x01
+} __packed;
+
+
+/* HID */
+
+/* Greybus HID operation types */
+#define GB_HID_TYPE_GET_DESC 0x02
+#define GB_HID_TYPE_GET_REPORT_DESC 0x03
+#define GB_HID_TYPE_PWR_ON 0x04
+#define GB_HID_TYPE_PWR_OFF 0x05
+#define GB_HID_TYPE_GET_REPORT 0x06
+#define GB_HID_TYPE_SET_REPORT 0x07
+#define GB_HID_TYPE_IRQ_EVENT 0x08
+
+/* Report type */
+#define GB_HID_INPUT_REPORT 0
+#define GB_HID_OUTPUT_REPORT 1
+#define GB_HID_FEATURE_REPORT 2
+
+/* Different request/response structures */
+/* HID get descriptor response */
+struct gb_hid_desc_response {
+ __u8 bLength;
+ __le16 wReportDescLength;
+ __le16 bcdHID;
+ __le16 wProductID;
+ __le16 wVendorID;
+ __u8 bCountryCode;
+} __packed;
+
+/* HID get report request/response */
+struct gb_hid_get_report_request {
+ __u8 report_type;
+ __u8 report_id;
+} __packed;
+
+/* HID set report request */
+struct gb_hid_set_report_request {
+ __u8 report_type;
+ __u8 report_id;
+ __u8 report[0];
+} __packed;
+
+/* HID input report request, via interrupt pipe */
+struct gb_hid_input_report_request {
+ __u8 report[0];
+} __packed;
+
+
+/* I2C */
+
+/* Greybus i2c request types */
+#define GB_I2C_TYPE_FUNCTIONALITY 0x02
+#define GB_I2C_TYPE_TRANSFER 0x05
+
+/* functionality request has no payload */
+struct gb_i2c_functionality_response {
+ __le32 functionality;
+} __packed;
+
+/*
+ * Outgoing data immediately follows the op count and ops array.
+ * The data for each write (master -> slave) op in the array is sent
+ * in order, with no (e.g. pad) bytes separating them.
+ *
+ * Short reads cause the entire transfer request to fail So response
+ * payload consists only of bytes read, and the number of bytes is
+ * exactly what was specified in the corresponding op. Like
+ * outgoing data, the incoming data is in order and contiguous.
+ */
+struct gb_i2c_transfer_op {
+ __le16 addr;
+ __le16 flags;
+ __le16 size;
+} __packed;
+
+struct gb_i2c_transfer_request {
+ __le16 op_count;
+ struct gb_i2c_transfer_op ops[0]; /* op_count of these */
+} __packed;
+struct gb_i2c_transfer_response {
+ __u8 data[0]; /* inbound data */
+} __packed;
+
+
+/* GPIO */
+
+/* Greybus GPIO request types */
+#define GB_GPIO_TYPE_LINE_COUNT 0x02
+#define GB_GPIO_TYPE_ACTIVATE 0x03
+#define GB_GPIO_TYPE_DEACTIVATE 0x04
+#define GB_GPIO_TYPE_GET_DIRECTION 0x05
+#define GB_GPIO_TYPE_DIRECTION_IN 0x06
+#define GB_GPIO_TYPE_DIRECTION_OUT 0x07
+#define GB_GPIO_TYPE_GET_VALUE 0x08
+#define GB_GPIO_TYPE_SET_VALUE 0x09
+#define GB_GPIO_TYPE_SET_DEBOUNCE 0x0a
+#define GB_GPIO_TYPE_IRQ_TYPE 0x0b
+#define GB_GPIO_TYPE_IRQ_MASK 0x0c
+#define GB_GPIO_TYPE_IRQ_UNMASK 0x0d
+#define GB_GPIO_TYPE_IRQ_EVENT 0x0e
+
+#define GB_GPIO_IRQ_TYPE_NONE 0x00
+#define GB_GPIO_IRQ_TYPE_EDGE_RISING 0x01
+#define GB_GPIO_IRQ_TYPE_EDGE_FALLING 0x02
+#define GB_GPIO_IRQ_TYPE_EDGE_BOTH 0x03
+#define GB_GPIO_IRQ_TYPE_LEVEL_HIGH 0x04
+#define GB_GPIO_IRQ_TYPE_LEVEL_LOW 0x08
+
+/* line count request has no payload */
+struct gb_gpio_line_count_response {
+ __u8 count;
+} __packed;
+
+struct gb_gpio_activate_request {
+ __u8 which;
+} __packed;
+/* activate response has no payload */
+
+struct gb_gpio_deactivate_request {
+ __u8 which;
+} __packed;
+/* deactivate response has no payload */
+
+struct gb_gpio_get_direction_request {
+ __u8 which;
+} __packed;
+struct gb_gpio_get_direction_response {
+ __u8 direction;
+} __packed;
+
+struct gb_gpio_direction_in_request {
+ __u8 which;
+} __packed;
+/* direction in response has no payload */
+
+struct gb_gpio_direction_out_request {
+ __u8 which;
+ __u8 value;
+} __packed;
+/* direction out response has no payload */
+
+struct gb_gpio_get_value_request {
+ __u8 which;
+} __packed;
+struct gb_gpio_get_value_response {
+ __u8 value;
+} __packed;
+
+struct gb_gpio_set_value_request {
+ __u8 which;
+ __u8 value;
+} __packed;
+/* set value response has no payload */
+
+struct gb_gpio_set_debounce_request {
+ __u8 which;
+ __le16 usec;
+} __packed;
+/* debounce response has no payload */
+
+struct gb_gpio_irq_type_request {
+ __u8 which;
+ __u8 type;
+} __packed;
+/* irq type response has no payload */
+
+struct gb_gpio_irq_mask_request {
+ __u8 which;
+} __packed;
+/* irq mask response has no payload */
+
+struct gb_gpio_irq_unmask_request {
+ __u8 which;
+} __packed;
+/* irq unmask response has no payload */
+
+/* irq event requests originate on another module and are handled on the AP */
+struct gb_gpio_irq_event_request {
+ __u8 which;
+} __packed;
+/* irq event has no response */
+
+
+/* PWM */
+
+/* Greybus PWM operation types */
+#define GB_PWM_TYPE_PWM_COUNT 0x02
+#define GB_PWM_TYPE_ACTIVATE 0x03
+#define GB_PWM_TYPE_DEACTIVATE 0x04
+#define GB_PWM_TYPE_CONFIG 0x05
+#define GB_PWM_TYPE_POLARITY 0x06
+#define GB_PWM_TYPE_ENABLE 0x07
+#define GB_PWM_TYPE_DISABLE 0x08
+
+/* pwm count request has no payload */
+struct gb_pwm_count_response {
+ __u8 count;
+} __packed;
+
+struct gb_pwm_activate_request {
+ __u8 which;
+} __packed;
+
+struct gb_pwm_deactivate_request {
+ __u8 which;
+} __packed;
+
+struct gb_pwm_config_request {
+ __u8 which;
+ __le32 duty;
+ __le32 period;
+} __packed;
+
+struct gb_pwm_polarity_request {
+ __u8 which;
+ __u8 polarity;
+} __packed;
+
+struct gb_pwm_enable_request {
+ __u8 which;
+} __packed;
+
+struct gb_pwm_disable_request {
+ __u8 which;
+} __packed;
+
+/* SPI */
+
+/* Should match up with modes in linux/spi/spi.h */
+#define GB_SPI_MODE_CPHA 0x01 /* clock phase */
+#define GB_SPI_MODE_CPOL 0x02 /* clock polarity */
+#define GB_SPI_MODE_MODE_0 (0 | 0) /* (original MicroWire) */
+#define GB_SPI_MODE_MODE_1 (0 | GB_SPI_MODE_CPHA)
+#define GB_SPI_MODE_MODE_2 (GB_SPI_MODE_CPOL | 0)
+#define GB_SPI_MODE_MODE_3 (GB_SPI_MODE_CPOL | GB_SPI_MODE_CPHA)
+#define GB_SPI_MODE_CS_HIGH 0x04 /* chipselect active high? */
+#define GB_SPI_MODE_LSB_FIRST 0x08 /* per-word bits-on-wire */
+#define GB_SPI_MODE_3WIRE 0x10 /* SI/SO signals shared */
+#define GB_SPI_MODE_LOOP 0x20 /* loopback mode */
+#define GB_SPI_MODE_NO_CS 0x40 /* 1 dev/bus, no chipselect */
+#define GB_SPI_MODE_READY 0x80 /* slave pulls low to pause */
+
+/* Should match up with flags in linux/spi/spi.h */
+#define GB_SPI_FLAG_HALF_DUPLEX BIT(0) /* can't do full duplex */
+#define GB_SPI_FLAG_NO_RX BIT(1) /* can't do buffer read */
+#define GB_SPI_FLAG_NO_TX BIT(2) /* can't do buffer write */
+
+/* Greybus spi operation types */
+#define GB_SPI_TYPE_MASTER_CONFIG 0x02
+#define GB_SPI_TYPE_DEVICE_CONFIG 0x03
+#define GB_SPI_TYPE_TRANSFER 0x04
+
+/* mode request has no payload */
+struct gb_spi_master_config_response {
+ __le32 bits_per_word_mask;
+ __le32 min_speed_hz;
+ __le32 max_speed_hz;
+ __le16 mode;
+ __le16 flags;
+ __u8 num_chipselect;
+} __packed;
+
+struct gb_spi_device_config_request {
+ __u8 chip_select;
+} __packed;
+
+struct gb_spi_device_config_response {
+ __le16 mode;
+ __u8 bits_per_word;
+ __le32 max_speed_hz;
+ __u8 device_type;
+#define GB_SPI_SPI_DEV 0x00
+#define GB_SPI_SPI_NOR 0x01
+#define GB_SPI_SPI_MODALIAS 0x02
+ __u8 name[32];
+} __packed;
+
+/**
+ * struct gb_spi_transfer - a read/write buffer pair
+ * @speed_hz: Select a speed other than the device default for this transfer. If
+ * 0 the default (from @spi_device) is used.
+ * @len: size of rx and tx buffers (in bytes)
+ * @delay_usecs: microseconds to delay after this transfer before (optionally)
+ * changing the chipselect status, then starting the next transfer or
+ * completing this spi_message.
+ * @cs_change: affects chipselect after this transfer completes
+ * @bits_per_word: select a bits_per_word other than the device default for this
+ * transfer. If 0 the default (from @spi_device) is used.
+ */
+struct gb_spi_transfer {
+ __le32 speed_hz;
+ __le32 len;
+ __le16 delay_usecs;
+ __u8 cs_change;
+ __u8 bits_per_word;
+ __u8 xfer_flags;
+#define GB_SPI_XFER_READ 0x01
+#define GB_SPI_XFER_WRITE 0x02
+#define GB_SPI_XFER_INPROGRESS 0x04
+} __packed;
+
+struct gb_spi_transfer_request {
+ __u8 chip_select; /* of the spi device */
+ __u8 mode; /* of the spi device */
+ __le16 count;
+ struct gb_spi_transfer transfers[0]; /* count of these */
+} __packed;
+
+struct gb_spi_transfer_response {
+ __u8 data[0]; /* inbound data */
+} __packed;
+
+/* Version of the Greybus SVC protocol we support */
+#define GB_SVC_VERSION_MAJOR 0x00
+#define GB_SVC_VERSION_MINOR 0x01
+
+/* Greybus SVC request types */
+#define GB_SVC_TYPE_PROTOCOL_VERSION 0x01
+#define GB_SVC_TYPE_SVC_HELLO 0x02
+#define GB_SVC_TYPE_INTF_DEVICE_ID 0x03
+#define GB_SVC_TYPE_INTF_RESET 0x06
+#define GB_SVC_TYPE_CONN_CREATE 0x07
+#define GB_SVC_TYPE_CONN_DESTROY 0x08
+#define GB_SVC_TYPE_DME_PEER_GET 0x09
+#define GB_SVC_TYPE_DME_PEER_SET 0x0a
+#define GB_SVC_TYPE_ROUTE_CREATE 0x0b
+#define GB_SVC_TYPE_ROUTE_DESTROY 0x0c
+#define GB_SVC_TYPE_TIMESYNC_ENABLE 0x0d
+#define GB_SVC_TYPE_TIMESYNC_DISABLE 0x0e
+#define GB_SVC_TYPE_TIMESYNC_AUTHORITATIVE 0x0f
+#define GB_SVC_TYPE_INTF_SET_PWRM 0x10
+#define GB_SVC_TYPE_INTF_EJECT 0x11
+#define GB_SVC_TYPE_PING 0x13
+#define GB_SVC_TYPE_PWRMON_RAIL_COUNT_GET 0x14
+#define GB_SVC_TYPE_PWRMON_RAIL_NAMES_GET 0x15
+#define GB_SVC_TYPE_PWRMON_SAMPLE_GET 0x16
+#define GB_SVC_TYPE_PWRMON_INTF_SAMPLE_GET 0x17
+#define GB_SVC_TYPE_TIMESYNC_WAKE_PINS_ACQUIRE 0x18
+#define GB_SVC_TYPE_TIMESYNC_WAKE_PINS_RELEASE 0x19
+#define GB_SVC_TYPE_TIMESYNC_PING 0x1a
+#define GB_SVC_TYPE_MODULE_INSERTED 0x1f
+#define GB_SVC_TYPE_MODULE_REMOVED 0x20
+#define GB_SVC_TYPE_INTF_VSYS_ENABLE 0x21
+#define GB_SVC_TYPE_INTF_VSYS_DISABLE 0x22
+#define GB_SVC_TYPE_INTF_REFCLK_ENABLE 0x23
+#define GB_SVC_TYPE_INTF_REFCLK_DISABLE 0x24
+#define GB_SVC_TYPE_INTF_UNIPRO_ENABLE 0x25
+#define GB_SVC_TYPE_INTF_UNIPRO_DISABLE 0x26
+#define GB_SVC_TYPE_INTF_ACTIVATE 0x27
+#define GB_SVC_TYPE_INTF_RESUME 0x28
+#define GB_SVC_TYPE_INTF_MAILBOX_EVENT 0x29
+#define GB_SVC_TYPE_INTF_OOPS 0x2a
+
+/* Greybus SVC protocol status values */
+#define GB_SVC_OP_SUCCESS 0x00
+#define GB_SVC_OP_UNKNOWN_ERROR 0x01
+#define GB_SVC_INTF_NOT_DETECTED 0x02
+#define GB_SVC_INTF_NO_UPRO_LINK 0x03
+#define GB_SVC_INTF_UPRO_NOT_DOWN 0x04
+#define GB_SVC_INTF_UPRO_NOT_HIBERNATED 0x05
+#define GB_SVC_INTF_NO_V_SYS 0x06
+#define GB_SVC_INTF_V_CHG 0x07
+#define GB_SVC_INTF_WAKE_BUSY 0x08
+#define GB_SVC_INTF_NO_REFCLK 0x09
+#define GB_SVC_INTF_RELEASING 0x0a
+#define GB_SVC_INTF_NO_ORDER 0x0b
+#define GB_SVC_INTF_MBOX_SET 0x0c
+#define GB_SVC_INTF_BAD_MBOX 0x0d
+#define GB_SVC_INTF_OP_TIMEOUT 0x0e
+#define GB_SVC_PWRMON_OP_NOT_PRESENT 0x0f
+
+struct gb_svc_version_request {
+ __u8 major;
+ __u8 minor;
+} __packed;
+
+struct gb_svc_version_response {
+ __u8 major;
+ __u8 minor;
+} __packed;
+
+/* SVC protocol hello request */
+struct gb_svc_hello_request {
+ __le16 endo_id;
+ __u8 interface_id;
+} __packed;
+/* hello response has no payload */
+
+struct gb_svc_intf_device_id_request {
+ __u8 intf_id;
+ __u8 device_id;
+} __packed;
+/* device id response has no payload */
+
+struct gb_svc_intf_reset_request {
+ __u8 intf_id;
+} __packed;
+/* interface reset response has no payload */
+
+struct gb_svc_intf_eject_request {
+ __u8 intf_id;
+} __packed;
+/* interface eject response has no payload */
+
+struct gb_svc_conn_create_request {
+ __u8 intf1_id;
+ __le16 cport1_id;
+ __u8 intf2_id;
+ __le16 cport2_id;
+ __u8 tc;
+ __u8 flags;
+} __packed;
+/* connection create response has no payload */
+
+struct gb_svc_conn_destroy_request {
+ __u8 intf1_id;
+ __le16 cport1_id;
+ __u8 intf2_id;
+ __le16 cport2_id;
+} __packed;
+/* connection destroy response has no payload */
+
+struct gb_svc_dme_peer_get_request {
+ __u8 intf_id;
+ __le16 attr;
+ __le16 selector;
+} __packed;
+
+struct gb_svc_dme_peer_get_response {
+ __le16 result_code;
+ __le32 attr_value;
+} __packed;
+
+struct gb_svc_dme_peer_set_request {
+ __u8 intf_id;
+ __le16 attr;
+ __le16 selector;
+ __le32 value;
+} __packed;
+
+struct gb_svc_dme_peer_set_response {
+ __le16 result_code;
+} __packed;
+
+/* Greybus init-status values, currently retrieved using DME peer gets. */
+#define GB_INIT_SPI_BOOT_STARTED 0x02
+#define GB_INIT_TRUSTED_SPI_BOOT_FINISHED 0x03
+#define GB_INIT_UNTRUSTED_SPI_BOOT_FINISHED 0x04
+#define GB_INIT_BOOTROM_UNIPRO_BOOT_STARTED 0x06
+#define GB_INIT_BOOTROM_FALLBACK_UNIPRO_BOOT_STARTED 0x09
+#define GB_INIT_S2_LOADER_BOOT_STARTED 0x0D
+
+struct gb_svc_route_create_request {
+ __u8 intf1_id;
+ __u8 dev1_id;
+ __u8 intf2_id;
+ __u8 dev2_id;
+} __packed;
+/* route create response has no payload */
+
+struct gb_svc_route_destroy_request {
+ __u8 intf1_id;
+ __u8 intf2_id;
+} __packed;
+/* route destroy response has no payload */
+
+/* used for svc_intf_vsys_{enable,disable} */
+struct gb_svc_intf_vsys_request {
+ __u8 intf_id;
+} __packed;
+
+struct gb_svc_intf_vsys_response {
+ __u8 result_code;
+#define GB_SVC_INTF_VSYS_OK 0x00
+ /* 0x01 is reserved */
+#define GB_SVC_INTF_VSYS_FAIL 0x02
+} __packed;
+
+/* used for svc_intf_refclk_{enable,disable} */
+struct gb_svc_intf_refclk_request {
+ __u8 intf_id;
+} __packed;
+
+struct gb_svc_intf_refclk_response {
+ __u8 result_code;
+#define GB_SVC_INTF_REFCLK_OK 0x00
+ /* 0x01 is reserved */
+#define GB_SVC_INTF_REFCLK_FAIL 0x02
+} __packed;
+
+/* used for svc_intf_unipro_{enable,disable} */
+struct gb_svc_intf_unipro_request {
+ __u8 intf_id;
+} __packed;
+
+struct gb_svc_intf_unipro_response {
+ __u8 result_code;
+#define GB_SVC_INTF_UNIPRO_OK 0x00
+ /* 0x01 is reserved */
+#define GB_SVC_INTF_UNIPRO_FAIL 0x02
+#define GB_SVC_INTF_UNIPRO_NOT_OFF 0x03
+} __packed;
+
+#define GB_SVC_UNIPRO_FAST_MODE 0x01
+#define GB_SVC_UNIPRO_SLOW_MODE 0x02
+#define GB_SVC_UNIPRO_FAST_AUTO_MODE 0x04
+#define GB_SVC_UNIPRO_SLOW_AUTO_MODE 0x05
+#define GB_SVC_UNIPRO_MODE_UNCHANGED 0x07
+#define GB_SVC_UNIPRO_HIBERNATE_MODE 0x11
+#define GB_SVC_UNIPRO_OFF_MODE 0x12
+
+#define GB_SVC_SMALL_AMPLITUDE 0x01
+#define GB_SVC_LARGE_AMPLITUDE 0x02
+
+#define GB_SVC_NO_DE_EMPHASIS 0x00
+#define GB_SVC_SMALL_DE_EMPHASIS 0x01
+#define GB_SVC_LARGE_DE_EMPHASIS 0x02
+
+#define GB_SVC_PWRM_RXTERMINATION 0x01
+#define GB_SVC_PWRM_TXTERMINATION 0x02
+#define GB_SVC_PWRM_LINE_RESET 0x04
+#define GB_SVC_PWRM_SCRAMBLING 0x20
+
+#define GB_SVC_PWRM_QUIRK_HSSER 0x00000001
+
+#define GB_SVC_UNIPRO_HS_SERIES_A 0x01
+#define GB_SVC_UNIPRO_HS_SERIES_B 0x02
+
+#define GB_SVC_SETPWRM_PWR_OK 0x00
+#define GB_SVC_SETPWRM_PWR_LOCAL 0x01
+#define GB_SVC_SETPWRM_PWR_REMOTE 0x02
+#define GB_SVC_SETPWRM_PWR_BUSY 0x03
+#define GB_SVC_SETPWRM_PWR_ERROR_CAP 0x04
+#define GB_SVC_SETPWRM_PWR_FATAL_ERROR 0x05
+
+struct gb_svc_l2_timer_cfg {
+ __le16 tsb_fc0_protection_timeout;
+ __le16 tsb_tc0_replay_timeout;
+ __le16 tsb_afc0_req_timeout;
+ __le16 tsb_fc1_protection_timeout;
+ __le16 tsb_tc1_replay_timeout;
+ __le16 tsb_afc1_req_timeout;
+ __le16 reserved_for_tc2[3];
+ __le16 reserved_for_tc3[3];
+} __packed;
+
+struct gb_svc_intf_set_pwrm_request {
+ __u8 intf_id;
+ __u8 hs_series;
+ __u8 tx_mode;
+ __u8 tx_gear;
+ __u8 tx_nlanes;
+ __u8 tx_amplitude;
+ __u8 tx_hs_equalizer;
+ __u8 rx_mode;
+ __u8 rx_gear;
+ __u8 rx_nlanes;
+ __u8 flags;
+ __le32 quirks;
+ struct gb_svc_l2_timer_cfg local_l2timerdata, remote_l2timerdata;
+} __packed;
+
+struct gb_svc_intf_set_pwrm_response {
+ __u8 result_code;
+} __packed;
+
+struct gb_svc_key_event_request {
+ __le16 key_code;
+#define GB_KEYCODE_ARA 0x00
+
+ __u8 key_event;
+#define GB_SVC_KEY_RELEASED 0x00
+#define GB_SVC_KEY_PRESSED 0x01
+} __packed;
+
+#define GB_SVC_PWRMON_MAX_RAIL_COUNT 254
+
+struct gb_svc_pwrmon_rail_count_get_response {
+ __u8 rail_count;
+} __packed;
+
+#define GB_SVC_PWRMON_RAIL_NAME_BUFSIZE 32
+
+struct gb_svc_pwrmon_rail_names_get_response {
+ __u8 status;
+ __u8 name[0][GB_SVC_PWRMON_RAIL_NAME_BUFSIZE];
+} __packed;
+
+#define GB_SVC_PWRMON_TYPE_CURR 0x01
+#define GB_SVC_PWRMON_TYPE_VOL 0x02
+#define GB_SVC_PWRMON_TYPE_PWR 0x03
+
+#define GB_SVC_PWRMON_GET_SAMPLE_OK 0x00
+#define GB_SVC_PWRMON_GET_SAMPLE_INVAL 0x01
+#define GB_SVC_PWRMON_GET_SAMPLE_NOSUPP 0x02
+#define GB_SVC_PWRMON_GET_SAMPLE_HWERR 0x03
+
+struct gb_svc_pwrmon_sample_get_request {
+ __u8 rail_id;
+ __u8 measurement_type;
+} __packed;
+
+struct gb_svc_pwrmon_sample_get_response {
+ __u8 result;
+ __le32 measurement;
+} __packed;
+
+struct gb_svc_pwrmon_intf_sample_get_request {
+ __u8 intf_id;
+ __u8 measurement_type;
+} __packed;
+
+struct gb_svc_pwrmon_intf_sample_get_response {
+ __u8 result;
+ __le32 measurement;
+} __packed;
+
+#define GB_SVC_MODULE_INSERTED_FLAG_NO_PRIMARY 0x0001
+
+struct gb_svc_module_inserted_request {
+ __u8 primary_intf_id;
+ __u8 intf_count;
+ __le16 flags;
+} __packed;
+/* module_inserted response has no payload */
+
+struct gb_svc_module_removed_request {
+ __u8 primary_intf_id;
+} __packed;
+/* module_removed response has no payload */
+
+struct gb_svc_intf_activate_request {
+ __u8 intf_id;
+} __packed;
+
+#define GB_SVC_INTF_TYPE_UNKNOWN 0x00
+#define GB_SVC_INTF_TYPE_DUMMY 0x01
+#define GB_SVC_INTF_TYPE_UNIPRO 0x02
+#define GB_SVC_INTF_TYPE_GREYBUS 0x03
+
+struct gb_svc_intf_activate_response {
+ __u8 status;
+ __u8 intf_type;
+} __packed;
+
+struct gb_svc_intf_resume_request {
+ __u8 intf_id;
+} __packed;
+
+struct gb_svc_intf_resume_response {
+ __u8 status;
+} __packed;
+
+#define GB_SVC_INTF_MAILBOX_NONE 0x00
+#define GB_SVC_INTF_MAILBOX_AP 0x01
+#define GB_SVC_INTF_MAILBOX_GREYBUS 0x02
+
+struct gb_svc_intf_mailbox_event_request {
+ __u8 intf_id;
+ __le16 result_code;
+ __le32 mailbox;
+} __packed;
+/* intf_mailbox_event response has no payload */
+
+struct gb_svc_intf_oops_request {
+ __u8 intf_id;
+ __u8 reason;
+} __packed;
+/* intf_oops response has no payload */
+
+
+/* RAW */
+
+/* Greybus raw request types */
+#define GB_RAW_TYPE_SEND 0x02
+
+struct gb_raw_send_request {
+ __le32 len;
+ __u8 data[0];
+} __packed;
+
+
+/* UART */
+
+/* Greybus UART operation types */
+#define GB_UART_TYPE_SEND_DATA 0x02
+#define GB_UART_TYPE_RECEIVE_DATA 0x03 /* Unsolicited data */
+#define GB_UART_TYPE_SET_LINE_CODING 0x04
+#define GB_UART_TYPE_SET_CONTROL_LINE_STATE 0x05
+#define GB_UART_TYPE_SEND_BREAK 0x06
+#define GB_UART_TYPE_SERIAL_STATE 0x07 /* Unsolicited data */
+#define GB_UART_TYPE_RECEIVE_CREDITS 0x08
+#define GB_UART_TYPE_FLUSH_FIFOS 0x09
+
+/* Represents data from AP -> Module */
+struct gb_uart_send_data_request {
+ __le16 size;
+ __u8 data[0];
+} __packed;
+
+/* recv-data-request flags */
+#define GB_UART_RECV_FLAG_FRAMING 0x01 /* Framing error */
+#define GB_UART_RECV_FLAG_PARITY 0x02 /* Parity error */
+#define GB_UART_RECV_FLAG_OVERRUN 0x04 /* Overrun error */
+#define GB_UART_RECV_FLAG_BREAK 0x08 /* Break */
+
+/* Represents data from Module -> AP */
+struct gb_uart_recv_data_request {
+ __le16 size;
+ __u8 flags;
+ __u8 data[0];
+} __packed;
+
+struct gb_uart_receive_credits_request {
+ __le16 count;
+} __packed;
+
+struct gb_uart_set_line_coding_request {
+ __le32 rate;
+ __u8 format;
+#define GB_SERIAL_1_STOP_BITS 0
+#define GB_SERIAL_1_5_STOP_BITS 1
+#define GB_SERIAL_2_STOP_BITS 2
+
+ __u8 parity;
+#define GB_SERIAL_NO_PARITY 0
+#define GB_SERIAL_ODD_PARITY 1
+#define GB_SERIAL_EVEN_PARITY 2
+#define GB_SERIAL_MARK_PARITY 3
+#define GB_SERIAL_SPACE_PARITY 4
+
+ __u8 data_bits;
+
+ __u8 flow_control;
+#define GB_SERIAL_AUTO_RTSCTS_EN 0x1
+} __packed;
+
+/* output control lines */
+#define GB_UART_CTRL_DTR 0x01
+#define GB_UART_CTRL_RTS 0x02
+
+struct gb_uart_set_control_line_state_request {
+ __u8 control;
+} __packed;
+
+struct gb_uart_set_break_request {
+ __u8 state;
+} __packed;
+
+/* input control lines and line errors */
+#define GB_UART_CTRL_DCD 0x01
+#define GB_UART_CTRL_DSR 0x02
+#define GB_UART_CTRL_RI 0x04
+
+struct gb_uart_serial_state_request {
+ __u8 control;
+} __packed;
+
+struct gb_uart_serial_flush_request {
+ __u8 flags;
+#define GB_SERIAL_FLAG_FLUSH_TRANSMITTER 0x01
+#define GB_SERIAL_FLAG_FLUSH_RECEIVER 0x02
+} __packed;
+
+/* Loopback */
+
+/* Greybus loopback request types */
+#define GB_LOOPBACK_TYPE_PING 0x02
+#define GB_LOOPBACK_TYPE_TRANSFER 0x03
+#define GB_LOOPBACK_TYPE_SINK 0x04
+
+/*
+ * Loopback request/response header format should be identical
+ * to simplify bandwidth and data movement analysis.
+ */
+struct gb_loopback_transfer_request {
+ __le32 len;
+ __le32 reserved0;
+ __le32 reserved1;
+ __u8 data[0];
+} __packed;
+
+struct gb_loopback_transfer_response {
+ __le32 len;
+ __le32 reserved0;
+ __le32 reserved1;
+ __u8 data[0];
+} __packed;
+
+/* SDIO */
+/* Greybus SDIO operation types */
+#define GB_SDIO_TYPE_GET_CAPABILITIES 0x02
+#define GB_SDIO_TYPE_SET_IOS 0x03
+#define GB_SDIO_TYPE_COMMAND 0x04
+#define GB_SDIO_TYPE_TRANSFER 0x05
+#define GB_SDIO_TYPE_EVENT 0x06
+
+/* get caps response: request has no payload */
+struct gb_sdio_get_caps_response {
+ __le32 caps;
+#define GB_SDIO_CAP_NONREMOVABLE 0x00000001
+#define GB_SDIO_CAP_4_BIT_DATA 0x00000002
+#define GB_SDIO_CAP_8_BIT_DATA 0x00000004
+#define GB_SDIO_CAP_MMC_HS 0x00000008
+#define GB_SDIO_CAP_SD_HS 0x00000010
+#define GB_SDIO_CAP_ERASE 0x00000020
+#define GB_SDIO_CAP_1_2V_DDR 0x00000040
+#define GB_SDIO_CAP_1_8V_DDR 0x00000080
+#define GB_SDIO_CAP_POWER_OFF_CARD 0x00000100
+#define GB_SDIO_CAP_UHS_SDR12 0x00000200
+#define GB_SDIO_CAP_UHS_SDR25 0x00000400
+#define GB_SDIO_CAP_UHS_SDR50 0x00000800
+#define GB_SDIO_CAP_UHS_SDR104 0x00001000
+#define GB_SDIO_CAP_UHS_DDR50 0x00002000
+#define GB_SDIO_CAP_DRIVER_TYPE_A 0x00004000
+#define GB_SDIO_CAP_DRIVER_TYPE_C 0x00008000
+#define GB_SDIO_CAP_DRIVER_TYPE_D 0x00010000
+#define GB_SDIO_CAP_HS200_1_2V 0x00020000
+#define GB_SDIO_CAP_HS200_1_8V 0x00040000
+#define GB_SDIO_CAP_HS400_1_2V 0x00080000
+#define GB_SDIO_CAP_HS400_1_8V 0x00100000
+
+ /* see possible values below at vdd */
+ __le32 ocr;
+ __le32 f_min;
+ __le32 f_max;
+ __le16 max_blk_count;
+ __le16 max_blk_size;
+} __packed;
+
+/* set ios request: response has no payload */
+struct gb_sdio_set_ios_request {
+ __le32 clock;
+ __le32 vdd;
+#define GB_SDIO_VDD_165_195 0x00000001
+#define GB_SDIO_VDD_20_21 0x00000002
+#define GB_SDIO_VDD_21_22 0x00000004
+#define GB_SDIO_VDD_22_23 0x00000008
+#define GB_SDIO_VDD_23_24 0x00000010
+#define GB_SDIO_VDD_24_25 0x00000020
+#define GB_SDIO_VDD_25_26 0x00000040
+#define GB_SDIO_VDD_26_27 0x00000080
+#define GB_SDIO_VDD_27_28 0x00000100
+#define GB_SDIO_VDD_28_29 0x00000200
+#define GB_SDIO_VDD_29_30 0x00000400
+#define GB_SDIO_VDD_30_31 0x00000800
+#define GB_SDIO_VDD_31_32 0x00001000
+#define GB_SDIO_VDD_32_33 0x00002000
+#define GB_SDIO_VDD_33_34 0x00004000
+#define GB_SDIO_VDD_34_35 0x00008000
+#define GB_SDIO_VDD_35_36 0x00010000
+
+ __u8 bus_mode;
+#define GB_SDIO_BUSMODE_OPENDRAIN 0x00
+#define GB_SDIO_BUSMODE_PUSHPULL 0x01
+
+ __u8 power_mode;
+#define GB_SDIO_POWER_OFF 0x00
+#define GB_SDIO_POWER_UP 0x01
+#define GB_SDIO_POWER_ON 0x02
+#define GB_SDIO_POWER_UNDEFINED 0x03
+
+ __u8 bus_width;
+#define GB_SDIO_BUS_WIDTH_1 0x00
+#define GB_SDIO_BUS_WIDTH_4 0x02
+#define GB_SDIO_BUS_WIDTH_8 0x03
+
+ __u8 timing;
+#define GB_SDIO_TIMING_LEGACY 0x00
+#define GB_SDIO_TIMING_MMC_HS 0x01
+#define GB_SDIO_TIMING_SD_HS 0x02
+#define GB_SDIO_TIMING_UHS_SDR12 0x03
+#define GB_SDIO_TIMING_UHS_SDR25 0x04
+#define GB_SDIO_TIMING_UHS_SDR50 0x05
+#define GB_SDIO_TIMING_UHS_SDR104 0x06
+#define GB_SDIO_TIMING_UHS_DDR50 0x07
+#define GB_SDIO_TIMING_MMC_DDR52 0x08
+#define GB_SDIO_TIMING_MMC_HS200 0x09
+#define GB_SDIO_TIMING_MMC_HS400 0x0A
+
+ __u8 signal_voltage;
+#define GB_SDIO_SIGNAL_VOLTAGE_330 0x00
+#define GB_SDIO_SIGNAL_VOLTAGE_180 0x01
+#define GB_SDIO_SIGNAL_VOLTAGE_120 0x02
+
+ __u8 drv_type;
+#define GB_SDIO_SET_DRIVER_TYPE_B 0x00
+#define GB_SDIO_SET_DRIVER_TYPE_A 0x01
+#define GB_SDIO_SET_DRIVER_TYPE_C 0x02
+#define GB_SDIO_SET_DRIVER_TYPE_D 0x03
+} __packed;
+
+/* command request */
+struct gb_sdio_command_request {
+ __u8 cmd;
+ __u8 cmd_flags;
+#define GB_SDIO_RSP_NONE 0x00
+#define GB_SDIO_RSP_PRESENT 0x01
+#define GB_SDIO_RSP_136 0x02
+#define GB_SDIO_RSP_CRC 0x04
+#define GB_SDIO_RSP_BUSY 0x08
+#define GB_SDIO_RSP_OPCODE 0x10
+
+ __u8 cmd_type;
+#define GB_SDIO_CMD_AC 0x00
+#define GB_SDIO_CMD_ADTC 0x01
+#define GB_SDIO_CMD_BC 0x02
+#define GB_SDIO_CMD_BCR 0x03
+
+ __le32 cmd_arg;
+ __le16 data_blocks;
+ __le16 data_blksz;
+} __packed;
+
+struct gb_sdio_command_response {
+ __le32 resp[4];
+} __packed;
+
+/* transfer request */
+struct gb_sdio_transfer_request {
+ __u8 data_flags;
+#define GB_SDIO_DATA_WRITE 0x01
+#define GB_SDIO_DATA_READ 0x02
+#define GB_SDIO_DATA_STREAM 0x04
+
+ __le16 data_blocks;
+ __le16 data_blksz;
+ __u8 data[0];
+} __packed;
+
+struct gb_sdio_transfer_response {
+ __le16 data_blocks;
+ __le16 data_blksz;
+ __u8 data[0];
+} __packed;
+
+/* event request: generated by module and is defined as unidirectional */
+struct gb_sdio_event_request {
+ __u8 event;
+#define GB_SDIO_CARD_INSERTED 0x01
+#define GB_SDIO_CARD_REMOVED 0x02
+#define GB_SDIO_WP 0x04
+} __packed;
+
+/* Camera */
+
+/* Greybus Camera request types */
+#define GB_CAMERA_TYPE_CAPABILITIES 0x02
+#define GB_CAMERA_TYPE_CONFIGURE_STREAMS 0x03
+#define GB_CAMERA_TYPE_CAPTURE 0x04
+#define GB_CAMERA_TYPE_FLUSH 0x05
+#define GB_CAMERA_TYPE_METADATA 0x06
+
+#define GB_CAMERA_MAX_STREAMS 4
+#define GB_CAMERA_MAX_SETTINGS_SIZE 8192
+
+/* Greybus Camera Configure Streams request payload */
+struct gb_camera_stream_config_request {
+ __le16 width;
+ __le16 height;
+ __le16 format;
+ __le16 padding;
+} __packed;
+
+struct gb_camera_configure_streams_request {
+ __u8 num_streams;
+ __u8 flags;
+#define GB_CAMERA_CONFIGURE_STREAMS_TEST_ONLY 0x01
+ __le16 padding;
+ struct gb_camera_stream_config_request config[0];
+} __packed;
+
+/* Greybus Camera Configure Streams response payload */
+struct gb_camera_stream_config_response {
+ __le16 width;
+ __le16 height;
+ __le16 format;
+ __u8 virtual_channel;
+ __u8 data_type[2];
+ __le16 max_pkt_size;
+ __u8 padding;
+ __le32 max_size;
+} __packed;
+
+struct gb_camera_configure_streams_response {
+ __u8 num_streams;
+#define GB_CAMERA_CONFIGURE_STREAMS_ADJUSTED 0x01
+ __u8 flags;
+ __u8 padding[2];
+ __le32 data_rate;
+ struct gb_camera_stream_config_response config[0];
+};
+
+/* Greybus Camera Capture request payload - response has no payload */
+struct gb_camera_capture_request {
+ __le32 request_id;
+ __u8 streams;
+ __u8 padding;
+ __le16 num_frames;
+ __u8 settings[0];
+} __packed;
+
+/* Greybus Camera Flush response payload - request has no payload */
+struct gb_camera_flush_response {
+ __le32 request_id;
+} __packed;
+
+/* Greybus Camera Metadata request payload - operation has no response */
+struct gb_camera_metadata_request {
+ __le32 request_id;
+ __le16 frame_number;
+ __u8 stream;
+ __u8 padding;
+ __u8 metadata[0];
+} __packed;
+
+/* Lights */
+
+/* Greybus Lights request types */
+#define GB_LIGHTS_TYPE_GET_LIGHTS 0x02
+#define GB_LIGHTS_TYPE_GET_LIGHT_CONFIG 0x03
+#define GB_LIGHTS_TYPE_GET_CHANNEL_CONFIG 0x04
+#define GB_LIGHTS_TYPE_GET_CHANNEL_FLASH_CONFIG 0x05
+#define GB_LIGHTS_TYPE_SET_BRIGHTNESS 0x06
+#define GB_LIGHTS_TYPE_SET_BLINK 0x07
+#define GB_LIGHTS_TYPE_SET_COLOR 0x08
+#define GB_LIGHTS_TYPE_SET_FADE 0x09
+#define GB_LIGHTS_TYPE_EVENT 0x0A
+#define GB_LIGHTS_TYPE_SET_FLASH_INTENSITY 0x0B
+#define GB_LIGHTS_TYPE_SET_FLASH_STROBE 0x0C
+#define GB_LIGHTS_TYPE_SET_FLASH_TIMEOUT 0x0D
+#define GB_LIGHTS_TYPE_GET_FLASH_FAULT 0x0E
+
+/* Greybus Light modes */
+
+/*
+ * if you add any specific mode below, update also the
+ * GB_CHANNEL_MODE_DEFINED_RANGE value accordingly
+ */
+#define GB_CHANNEL_MODE_NONE 0x00000000
+#define GB_CHANNEL_MODE_BATTERY 0x00000001
+#define GB_CHANNEL_MODE_POWER 0x00000002
+#define GB_CHANNEL_MODE_WIRELESS 0x00000004
+#define GB_CHANNEL_MODE_BLUETOOTH 0x00000008
+#define GB_CHANNEL_MODE_KEYBOARD 0x00000010
+#define GB_CHANNEL_MODE_BUTTONS 0x00000020
+#define GB_CHANNEL_MODE_NOTIFICATION 0x00000040
+#define GB_CHANNEL_MODE_ATTENTION 0x00000080
+#define GB_CHANNEL_MODE_FLASH 0x00000100
+#define GB_CHANNEL_MODE_TORCH 0x00000200
+#define GB_CHANNEL_MODE_INDICATOR 0x00000400
+
+/* Lights Mode valid bit values */
+#define GB_CHANNEL_MODE_DEFINED_RANGE 0x000004FF
+#define GB_CHANNEL_MODE_VENDOR_RANGE 0x00F00000
+
+/* Greybus Light Channels Flags */
+#define GB_LIGHT_CHANNEL_MULTICOLOR 0x00000001
+#define GB_LIGHT_CHANNEL_FADER 0x00000002
+#define GB_LIGHT_CHANNEL_BLINK 0x00000004
+
+/* get count of lights in module */
+struct gb_lights_get_lights_response {
+ __u8 lights_count;
+} __packed;
+
+/* light config request payload */
+struct gb_lights_get_light_config_request {
+ __u8 id;
+} __packed;
+
+/* light config response payload */
+struct gb_lights_get_light_config_response {
+ __u8 channel_count;
+ __u8 name[32];
+} __packed;
+
+/* channel config request payload */
+struct gb_lights_get_channel_config_request {
+ __u8 light_id;
+ __u8 channel_id;
+} __packed;
+
+/* channel flash config request payload */
+struct gb_lights_get_channel_flash_config_request {
+ __u8 light_id;
+ __u8 channel_id;
+} __packed;
+
+/* channel config response payload */
+struct gb_lights_get_channel_config_response {
+ __u8 max_brightness;
+ __le32 flags;
+ __le32 color;
+ __u8 color_name[32];
+ __le32 mode;
+ __u8 mode_name[32];
+} __packed;
+
+/* channel flash config response payload */
+struct gb_lights_get_channel_flash_config_response {
+ __le32 intensity_min_uA;
+ __le32 intensity_max_uA;
+ __le32 intensity_step_uA;
+ __le32 timeout_min_us;
+ __le32 timeout_max_us;
+ __le32 timeout_step_us;
+} __packed;
+
+/* blink request payload: response have no payload */
+struct gb_lights_blink_request {
+ __u8 light_id;
+ __u8 channel_id;
+ __le16 time_on_ms;
+ __le16 time_off_ms;
+} __packed;
+
+/* set brightness request payload: response have no payload */
+struct gb_lights_set_brightness_request {
+ __u8 light_id;
+ __u8 channel_id;
+ __u8 brightness;
+} __packed;
+
+/* set color request payload: response have no payload */
+struct gb_lights_set_color_request {
+ __u8 light_id;
+ __u8 channel_id;
+ __le32 color;
+} __packed;
+
+/* set fade request payload: response have no payload */
+struct gb_lights_set_fade_request {
+ __u8 light_id;
+ __u8 channel_id;
+ __u8 fade_in;
+ __u8 fade_out;
+} __packed;
+
+/* event request: generated by module */
+struct gb_lights_event_request {
+ __u8 light_id;
+ __u8 event;
+#define GB_LIGHTS_LIGHT_CONFIG 0x01
+} __packed;
+
+/* set flash intensity request payload: response have no payload */
+struct gb_lights_set_flash_intensity_request {
+ __u8 light_id;
+ __u8 channel_id;
+ __le32 intensity_uA;
+} __packed;
+
+/* set flash strobe state request payload: response have no payload */
+struct gb_lights_set_flash_strobe_request {
+ __u8 light_id;
+ __u8 channel_id;
+ __u8 state;
+} __packed;
+
+/* set flash timeout request payload: response have no payload */
+struct gb_lights_set_flash_timeout_request {
+ __u8 light_id;
+ __u8 channel_id;
+ __le32 timeout_us;
+} __packed;
+
+/* get flash fault request payload */
+struct gb_lights_get_flash_fault_request {
+ __u8 light_id;
+ __u8 channel_id;
+} __packed;
+
+/* get flash fault response payload */
+struct gb_lights_get_flash_fault_response {
+ __le32 fault;
+#define GB_LIGHTS_FLASH_FAULT_OVER_VOLTAGE 0x00000000
+#define GB_LIGHTS_FLASH_FAULT_TIMEOUT 0x00000001
+#define GB_LIGHTS_FLASH_FAULT_OVER_TEMPERATURE 0x00000002
+#define GB_LIGHTS_FLASH_FAULT_SHORT_CIRCUIT 0x00000004
+#define GB_LIGHTS_FLASH_FAULT_OVER_CURRENT 0x00000008
+#define GB_LIGHTS_FLASH_FAULT_INDICATOR 0x00000010
+#define GB_LIGHTS_FLASH_FAULT_UNDER_VOLTAGE 0x00000020
+#define GB_LIGHTS_FLASH_FAULT_INPUT_VOLTAGE 0x00000040
+#define GB_LIGHTS_FLASH_FAULT_LED_OVER_TEMPERATURE 0x00000080
+} __packed;
+
+/* Audio */
+
+#define GB_AUDIO_TYPE_GET_TOPOLOGY_SIZE 0x02
+#define GB_AUDIO_TYPE_GET_TOPOLOGY 0x03
+#define GB_AUDIO_TYPE_GET_CONTROL 0x04
+#define GB_AUDIO_TYPE_SET_CONTROL 0x05
+#define GB_AUDIO_TYPE_ENABLE_WIDGET 0x06
+#define GB_AUDIO_TYPE_DISABLE_WIDGET 0x07
+#define GB_AUDIO_TYPE_GET_PCM 0x08
+#define GB_AUDIO_TYPE_SET_PCM 0x09
+#define GB_AUDIO_TYPE_SET_TX_DATA_SIZE 0x0a
+ /* 0x0b unused */
+#define GB_AUDIO_TYPE_ACTIVATE_TX 0x0c
+#define GB_AUDIO_TYPE_DEACTIVATE_TX 0x0d
+#define GB_AUDIO_TYPE_SET_RX_DATA_SIZE 0x0e
+ /* 0x0f unused */
+#define GB_AUDIO_TYPE_ACTIVATE_RX 0x10
+#define GB_AUDIO_TYPE_DEACTIVATE_RX 0x11
+#define GB_AUDIO_TYPE_JACK_EVENT 0x12
+#define GB_AUDIO_TYPE_BUTTON_EVENT 0x13
+#define GB_AUDIO_TYPE_STREAMING_EVENT 0x14
+#define GB_AUDIO_TYPE_SEND_DATA 0x15
+
+/* Module must be able to buffer 10ms of audio data, minimum */
+#define GB_AUDIO_SAMPLE_BUFFER_MIN_US 10000
+
+#define GB_AUDIO_PCM_NAME_MAX 32
+#define AUDIO_DAI_NAME_MAX 32
+#define AUDIO_CONTROL_NAME_MAX 32
+#define AUDIO_CTL_ELEM_NAME_MAX 44
+#define AUDIO_ENUM_NAME_MAX 64
+#define AUDIO_WIDGET_NAME_MAX 32
+
+/* See SNDRV_PCM_FMTBIT_* in Linux source */
+#define GB_AUDIO_PCM_FMT_S8 BIT(0)
+#define GB_AUDIO_PCM_FMT_U8 BIT(1)
+#define GB_AUDIO_PCM_FMT_S16_LE BIT(2)
+#define GB_AUDIO_PCM_FMT_S16_BE BIT(3)
+#define GB_AUDIO_PCM_FMT_U16_LE BIT(4)
+#define GB_AUDIO_PCM_FMT_U16_BE BIT(5)
+#define GB_AUDIO_PCM_FMT_S24_LE BIT(6)
+#define GB_AUDIO_PCM_FMT_S24_BE BIT(7)
+#define GB_AUDIO_PCM_FMT_U24_LE BIT(8)
+#define GB_AUDIO_PCM_FMT_U24_BE BIT(9)
+#define GB_AUDIO_PCM_FMT_S32_LE BIT(10)
+#define GB_AUDIO_PCM_FMT_S32_BE BIT(11)
+#define GB_AUDIO_PCM_FMT_U32_LE BIT(12)
+#define GB_AUDIO_PCM_FMT_U32_BE BIT(13)
+
+/* See SNDRV_PCM_RATE_* in Linux source */
+#define GB_AUDIO_PCM_RATE_5512 BIT(0)
+#define GB_AUDIO_PCM_RATE_8000 BIT(1)
+#define GB_AUDIO_PCM_RATE_11025 BIT(2)
+#define GB_AUDIO_PCM_RATE_16000 BIT(3)
+#define GB_AUDIO_PCM_RATE_22050 BIT(4)
+#define GB_AUDIO_PCM_RATE_32000 BIT(5)
+#define GB_AUDIO_PCM_RATE_44100 BIT(6)
+#define GB_AUDIO_PCM_RATE_48000 BIT(7)
+#define GB_AUDIO_PCM_RATE_64000 BIT(8)
+#define GB_AUDIO_PCM_RATE_88200 BIT(9)
+#define GB_AUDIO_PCM_RATE_96000 BIT(10)
+#define GB_AUDIO_PCM_RATE_176400 BIT(11)
+#define GB_AUDIO_PCM_RATE_192000 BIT(12)
+
+#define GB_AUDIO_STREAM_TYPE_CAPTURE 0x1
+#define GB_AUDIO_STREAM_TYPE_PLAYBACK 0x2
+
+#define GB_AUDIO_CTL_ELEM_ACCESS_READ BIT(0)
+#define GB_AUDIO_CTL_ELEM_ACCESS_WRITE BIT(1)
+
+/* See SNDRV_CTL_ELEM_TYPE_* in Linux source */
+#define GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN 0x01
+#define GB_AUDIO_CTL_ELEM_TYPE_INTEGER 0x02
+#define GB_AUDIO_CTL_ELEM_TYPE_ENUMERATED 0x03
+#define GB_AUDIO_CTL_ELEM_TYPE_INTEGER64 0x06
+
+/* See SNDRV_CTL_ELEM_IFACE_* in Linux source */
+#define GB_AUDIO_CTL_ELEM_IFACE_CARD 0x00
+#define GB_AUDIO_CTL_ELEM_IFACE_HWDEP 0x01
+#define GB_AUDIO_CTL_ELEM_IFACE_MIXER 0x02
+#define GB_AUDIO_CTL_ELEM_IFACE_PCM 0x03
+#define GB_AUDIO_CTL_ELEM_IFACE_RAWMIDI 0x04
+#define GB_AUDIO_CTL_ELEM_IFACE_TIMER 0x05
+#define GB_AUDIO_CTL_ELEM_IFACE_SEQUENCER 0x06
+
+/* SNDRV_CTL_ELEM_ACCESS_* in Linux source */
+#define GB_AUDIO_ACCESS_READ BIT(0)
+#define GB_AUDIO_ACCESS_WRITE BIT(1)
+#define GB_AUDIO_ACCESS_VOLATILE BIT(2)
+#define GB_AUDIO_ACCESS_TIMESTAMP BIT(3)
+#define GB_AUDIO_ACCESS_TLV_READ BIT(4)
+#define GB_AUDIO_ACCESS_TLV_WRITE BIT(5)
+#define GB_AUDIO_ACCESS_TLV_COMMAND BIT(6)
+#define GB_AUDIO_ACCESS_INACTIVE BIT(7)
+#define GB_AUDIO_ACCESS_LOCK BIT(8)
+#define GB_AUDIO_ACCESS_OWNER BIT(9)
+
+/* enum snd_soc_dapm_type */
+#define GB_AUDIO_WIDGET_TYPE_INPUT 0x0
+#define GB_AUDIO_WIDGET_TYPE_OUTPUT 0x1
+#define GB_AUDIO_WIDGET_TYPE_MUX 0x2
+#define GB_AUDIO_WIDGET_TYPE_VIRT_MUX 0x3
+#define GB_AUDIO_WIDGET_TYPE_VALUE_MUX 0x4
+#define GB_AUDIO_WIDGET_TYPE_MIXER 0x5
+#define GB_AUDIO_WIDGET_TYPE_MIXER_NAMED_CTL 0x6
+#define GB_AUDIO_WIDGET_TYPE_PGA 0x7
+#define GB_AUDIO_WIDGET_TYPE_OUT_DRV 0x8
+#define GB_AUDIO_WIDGET_TYPE_ADC 0x9
+#define GB_AUDIO_WIDGET_TYPE_DAC 0xa
+#define GB_AUDIO_WIDGET_TYPE_MICBIAS 0xb
+#define GB_AUDIO_WIDGET_TYPE_MIC 0xc
+#define GB_AUDIO_WIDGET_TYPE_HP 0xd
+#define GB_AUDIO_WIDGET_TYPE_SPK 0xe
+#define GB_AUDIO_WIDGET_TYPE_LINE 0xf
+#define GB_AUDIO_WIDGET_TYPE_SWITCH 0x10
+#define GB_AUDIO_WIDGET_TYPE_VMID 0x11
+#define GB_AUDIO_WIDGET_TYPE_PRE 0x12
+#define GB_AUDIO_WIDGET_TYPE_POST 0x13
+#define GB_AUDIO_WIDGET_TYPE_SUPPLY 0x14
+#define GB_AUDIO_WIDGET_TYPE_REGULATOR_SUPPLY 0x15
+#define GB_AUDIO_WIDGET_TYPE_CLOCK_SUPPLY 0x16
+#define GB_AUDIO_WIDGET_TYPE_AIF_IN 0x17
+#define GB_AUDIO_WIDGET_TYPE_AIF_OUT 0x18
+#define GB_AUDIO_WIDGET_TYPE_SIGGEN 0x19
+#define GB_AUDIO_WIDGET_TYPE_DAI_IN 0x1a
+#define GB_AUDIO_WIDGET_TYPE_DAI_OUT 0x1b
+#define GB_AUDIO_WIDGET_TYPE_DAI_LINK 0x1c
+
+#define GB_AUDIO_WIDGET_STATE_DISABLED 0x01
+#define GB_AUDIO_WIDGET_STATE_ENAABLED 0x02
+
+#define GB_AUDIO_JACK_EVENT_INSERTION 0x1
+#define GB_AUDIO_JACK_EVENT_REMOVAL 0x2
+
+#define GB_AUDIO_BUTTON_EVENT_PRESS 0x1
+#define GB_AUDIO_BUTTON_EVENT_RELEASE 0x2
+
+#define GB_AUDIO_STREAMING_EVENT_UNSPECIFIED 0x1
+#define GB_AUDIO_STREAMING_EVENT_HALT 0x2
+#define GB_AUDIO_STREAMING_EVENT_INTERNAL_ERROR 0x3
+#define GB_AUDIO_STREAMING_EVENT_PROTOCOL_ERROR 0x4
+#define GB_AUDIO_STREAMING_EVENT_FAILURE 0x5
+#define GB_AUDIO_STREAMING_EVENT_UNDERRUN 0x6
+#define GB_AUDIO_STREAMING_EVENT_OVERRUN 0x7
+#define GB_AUDIO_STREAMING_EVENT_CLOCKING 0x8
+#define GB_AUDIO_STREAMING_EVENT_DATA_LEN 0x9
+
+#define GB_AUDIO_INVALID_INDEX 0xff
+
+/* enum snd_jack_types */
+#define GB_AUDIO_JACK_HEADPHONE 0x0000001
+#define GB_AUDIO_JACK_MICROPHONE 0x0000002
+#define GB_AUDIO_JACK_HEADSET (GB_AUDIO_JACK_HEADPHONE | \
+ GB_AUDIO_JACK_MICROPHONE)
+#define GB_AUDIO_JACK_LINEOUT 0x0000004
+#define GB_AUDIO_JACK_MECHANICAL 0x0000008
+#define GB_AUDIO_JACK_VIDEOOUT 0x0000010
+#define GB_AUDIO_JACK_AVOUT (GB_AUDIO_JACK_LINEOUT | \
+ GB_AUDIO_JACK_VIDEOOUT)
+#define GB_AUDIO_JACK_LINEIN 0x0000020
+#define GB_AUDIO_JACK_OC_HPHL 0x0000040
+#define GB_AUDIO_JACK_OC_HPHR 0x0000080
+#define GB_AUDIO_JACK_MICROPHONE2 0x0000200
+#define GB_AUDIO_JACK_ANC_HEADPHONE (GB_AUDIO_JACK_HEADPHONE | \
+ GB_AUDIO_JACK_MICROPHONE | \
+ GB_AUDIO_JACK_MICROPHONE2)
+/* Kept separate from switches to facilitate implementation */
+#define GB_AUDIO_JACK_BTN_0 0x4000000
+#define GB_AUDIO_JACK_BTN_1 0x2000000
+#define GB_AUDIO_JACK_BTN_2 0x1000000
+#define GB_AUDIO_JACK_BTN_3 0x0800000
+
+struct gb_audio_pcm {
+ __u8 stream_name[GB_AUDIO_PCM_NAME_MAX];
+ __le32 formats; /* GB_AUDIO_PCM_FMT_* */
+ __le32 rates; /* GB_AUDIO_PCM_RATE_* */
+ __u8 chan_min;
+ __u8 chan_max;
+ __u8 sig_bits; /* number of bits of content */
+} __packed;
+
+struct gb_audio_dai {
+ __u8 name[AUDIO_DAI_NAME_MAX];
+ __le16 data_cport;
+ struct gb_audio_pcm capture;
+ struct gb_audio_pcm playback;
+} __packed;
+
+struct gb_audio_integer {
+ __le32 min;
+ __le32 max;
+ __le32 step;
+} __packed;
+
+struct gb_audio_integer64 {
+ __le64 min;
+ __le64 max;
+ __le64 step;
+} __packed;
+
+struct gb_audio_enumerated {
+ __le32 items;
+ __le16 names_length;
+ __u8 names[0];
+} __packed;
+
+struct gb_audio_ctl_elem_info { /* See snd_ctl_elem_info in Linux source */
+ __u8 type; /* GB_AUDIO_CTL_ELEM_TYPE_* */
+ __le16 dimen[4];
+ union {
+ struct gb_audio_integer integer;
+ struct gb_audio_integer64 integer64;
+ struct gb_audio_enumerated enumerated;
+ } value;
+} __packed;
+
+struct gb_audio_ctl_elem_value { /* See snd_ctl_elem_value in Linux source */
+ __le64 timestamp; /* XXX needed? */
+ union {
+ __le32 integer_value[2]; /* consider CTL_DOUBLE_xxx */
+ __le64 integer64_value[2];
+ __le32 enumerated_item[2];
+ } value;
+} __packed;
+
+struct gb_audio_control {
+ __u8 name[AUDIO_CONTROL_NAME_MAX];
+ __u8 id; /* 0-63 */
+ __u8 iface; /* GB_AUDIO_IFACE_* */
+ __le16 data_cport;
+ __le32 access; /* GB_AUDIO_ACCESS_* */
+ __u8 count; /* count of same elements */
+ __u8 count_values; /* count of values, max=2 for CTL_DOUBLE_xxx */
+ struct gb_audio_ctl_elem_info info;
+} __packed;
+
+struct gb_audio_widget {
+ __u8 name[AUDIO_WIDGET_NAME_MAX];
+ __u8 sname[AUDIO_WIDGET_NAME_MAX];
+ __u8 id;
+ __u8 type; /* GB_AUDIO_WIDGET_TYPE_* */
+ __u8 state; /* GB_AUDIO_WIDGET_STATE_* */
+ __u8 ncontrols;
+ struct gb_audio_control ctl[0]; /* 'ncontrols' entries */
+} __packed;
+
+struct gb_audio_route {
+ __u8 source_id; /* widget id */
+ __u8 destination_id; /* widget id */
+ __u8 control_id; /* 0-63 */
+ __u8 index; /* Selection within the control */
+} __packed;
+
+struct gb_audio_topology {
+ __u8 num_dais;
+ __u8 num_controls;
+ __u8 num_widgets;
+ __u8 num_routes;
+ __le32 size_dais;
+ __le32 size_controls;
+ __le32 size_widgets;
+ __le32 size_routes;
+ __le32 jack_type;
+ /*
+ * struct gb_audio_dai dai[num_dais];
+ * struct gb_audio_control controls[num_controls];
+ * struct gb_audio_widget widgets[num_widgets];
+ * struct gb_audio_route routes[num_routes];
+ */
+ __u8 data[0];
+} __packed;
+
+struct gb_audio_get_topology_size_response {
+ __le16 size;
+} __packed;
+
+struct gb_audio_get_topology_response {
+ struct gb_audio_topology topology;
+} __packed;
+
+struct gb_audio_get_control_request {
+ __u8 control_id;
+ __u8 index;
+} __packed;
+
+struct gb_audio_get_control_response {
+ struct gb_audio_ctl_elem_value value;
+} __packed;
+
+struct gb_audio_set_control_request {
+ __u8 control_id;
+ __u8 index;
+ struct gb_audio_ctl_elem_value value;
+} __packed;
+
+struct gb_audio_enable_widget_request {
+ __u8 widget_id;
+} __packed;
+
+struct gb_audio_disable_widget_request {
+ __u8 widget_id;
+} __packed;
+
+struct gb_audio_get_pcm_request {
+ __le16 data_cport;
+} __packed;
+
+struct gb_audio_get_pcm_response {
+ __le32 format;
+ __le32 rate;
+ __u8 channels;
+ __u8 sig_bits;
+} __packed;
+
+struct gb_audio_set_pcm_request {
+ __le16 data_cport;
+ __le32 format;
+ __le32 rate;
+ __u8 channels;
+ __u8 sig_bits;
+} __packed;
+
+struct gb_audio_set_tx_data_size_request {
+ __le16 data_cport;
+ __le16 size;
+} __packed;
+
+struct gb_audio_activate_tx_request {
+ __le16 data_cport;
+} __packed;
+
+struct gb_audio_deactivate_tx_request {
+ __le16 data_cport;
+} __packed;
+
+struct gb_audio_set_rx_data_size_request {
+ __le16 data_cport;
+ __le16 size;
+} __packed;
+
+struct gb_audio_activate_rx_request {
+ __le16 data_cport;
+} __packed;
+
+struct gb_audio_deactivate_rx_request {
+ __le16 data_cport;
+} __packed;
+
+struct gb_audio_jack_event_request {
+ __u8 widget_id;
+ __u8 jack_attribute;
+ __u8 event;
+} __packed;
+
+struct gb_audio_button_event_request {
+ __u8 widget_id;
+ __u8 button_id;
+ __u8 event;
+} __packed;
+
+struct gb_audio_streaming_event_request {
+ __le16 data_cport;
+ __u8 event;
+} __packed;
+
+struct gb_audio_send_data_request {
+ __le64 timestamp;
+ __u8 data[0];
+} __packed;
+
+
+/* Log */
+
+/* operations */
+#define GB_LOG_TYPE_SEND_LOG 0x02
+
+/* length */
+#define GB_LOG_MAX_LEN 1024
+
+struct gb_log_send_log_request {
+ __le16 len;
+ __u8 msg[0];
+} __packed;
+
+#endif /* __GREYBUS_PROTOCOLS_H */
+
diff --git a/include/linux/greybus/hd.h b/include/linux/greybus/hd.h
new file mode 100644
index 000000000000..348b76fabc9a
--- /dev/null
+++ b/include/linux/greybus/hd.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus Host Device
+ *
+ * Copyright 2014-2015 Google Inc.
+ * Copyright 2014-2015 Linaro Ltd.
+ */
+
+#ifndef __HD_H
+#define __HD_H
+
+struct gb_host_device;
+struct gb_message;
+
+struct gb_hd_driver {
+ size_t hd_priv_size;
+
+ int (*cport_allocate)(struct gb_host_device *hd, int cport_id,
+ unsigned long flags);
+ void (*cport_release)(struct gb_host_device *hd, u16 cport_id);
+ int (*cport_enable)(struct gb_host_device *hd, u16 cport_id,
+ unsigned long flags);
+ int (*cport_disable)(struct gb_host_device *hd, u16 cport_id);
+ int (*cport_connected)(struct gb_host_device *hd, u16 cport_id);
+ int (*cport_flush)(struct gb_host_device *hd, u16 cport_id);
+ int (*cport_shutdown)(struct gb_host_device *hd, u16 cport_id,
+ u8 phase, unsigned int timeout);
+ int (*cport_quiesce)(struct gb_host_device *hd, u16 cport_id,
+ size_t peer_space, unsigned int timeout);
+ int (*cport_clear)(struct gb_host_device *hd, u16 cport_id);
+
+ int (*message_send)(struct gb_host_device *hd, u16 dest_cport_id,
+ struct gb_message *message, gfp_t gfp_mask);
+ void (*message_cancel)(struct gb_message *message);
+ int (*latency_tag_enable)(struct gb_host_device *hd, u16 cport_id);
+ int (*latency_tag_disable)(struct gb_host_device *hd, u16 cport_id);
+ int (*output)(struct gb_host_device *hd, void *req, u16 size, u8 cmd,
+ bool async);
+};
+
+struct gb_host_device {
+ struct device dev;
+ int bus_id;
+ const struct gb_hd_driver *driver;
+
+ struct list_head modules;
+ struct list_head connections;
+ struct ida cport_id_map;
+
+ /* Number of CPorts supported by the UniPro IP */
+ size_t num_cports;
+
+ /* Host device buffer constraints */
+ size_t buffer_size_max;
+
+ struct gb_svc *svc;
+ /* Private data for the host driver */
+ unsigned long hd_priv[0] __aligned(sizeof(s64));
+};
+#define to_gb_host_device(d) container_of(d, struct gb_host_device, dev)
+
+int gb_hd_cport_reserve(struct gb_host_device *hd, u16 cport_id);
+void gb_hd_cport_release_reserved(struct gb_host_device *hd, u16 cport_id);
+int gb_hd_cport_allocate(struct gb_host_device *hd, int cport_id,
+ unsigned long flags);
+void gb_hd_cport_release(struct gb_host_device *hd, u16 cport_id);
+
+struct gb_host_device *gb_hd_create(struct gb_hd_driver *driver,
+ struct device *parent,
+ size_t buffer_size_max,
+ size_t num_cports);
+int gb_hd_add(struct gb_host_device *hd);
+void gb_hd_del(struct gb_host_device *hd);
+void gb_hd_shutdown(struct gb_host_device *hd);
+void gb_hd_put(struct gb_host_device *hd);
+int gb_hd_output(struct gb_host_device *hd, void *req, u16 size, u8 cmd,
+ bool in_irq);
+
+int gb_hd_init(void);
+void gb_hd_exit(void);
+
+#endif /* __HD_H */
diff --git a/include/linux/greybus/interface.h b/include/linux/greybus/interface.h
new file mode 100644
index 000000000000..8fb1eacda302
--- /dev/null
+++ b/include/linux/greybus/interface.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus Interface Block code
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#ifndef __INTERFACE_H
+#define __INTERFACE_H
+
+enum gb_interface_type {
+ GB_INTERFACE_TYPE_INVALID = 0,
+ GB_INTERFACE_TYPE_UNKNOWN,
+ GB_INTERFACE_TYPE_DUMMY,
+ GB_INTERFACE_TYPE_UNIPRO,
+ GB_INTERFACE_TYPE_GREYBUS,
+};
+
+#define GB_INTERFACE_QUIRK_NO_CPORT_FEATURES BIT(0)
+#define GB_INTERFACE_QUIRK_NO_INIT_STATUS BIT(1)
+#define GB_INTERFACE_QUIRK_NO_GMP_IDS BIT(2)
+#define GB_INTERFACE_QUIRK_FORCED_DISABLE BIT(3)
+#define GB_INTERFACE_QUIRK_LEGACY_MODE_SWITCH BIT(4)
+#define GB_INTERFACE_QUIRK_NO_BUNDLE_ACTIVATE BIT(5)
+#define GB_INTERFACE_QUIRK_NO_PM BIT(6)
+
+struct gb_interface {
+ struct device dev;
+ struct gb_control *control;
+
+ struct list_head bundles;
+ struct list_head module_node;
+ struct list_head manifest_descs;
+ u8 interface_id; /* Physical location within the Endo */
+ u8 device_id;
+ u8 features; /* Feature flags set in the manifest */
+
+ enum gb_interface_type type;
+
+ u32 ddbl1_manufacturer_id;
+ u32 ddbl1_product_id;
+ u32 vendor_id;
+ u32 product_id;
+ u64 serial_number;
+
+ struct gb_host_device *hd;
+ struct gb_module *module;
+
+ unsigned long quirks;
+
+ struct mutex mutex;
+
+ bool disconnected;
+
+ bool ejected;
+ bool removed;
+ bool active;
+ bool enabled;
+ bool mode_switch;
+ bool dme_read;
+
+ struct work_struct mode_switch_work;
+ struct completion mode_switch_completion;
+};
+#define to_gb_interface(d) container_of(d, struct gb_interface, dev)
+
+struct gb_interface *gb_interface_create(struct gb_module *module,
+ u8 interface_id);
+int gb_interface_activate(struct gb_interface *intf);
+void gb_interface_deactivate(struct gb_interface *intf);
+int gb_interface_enable(struct gb_interface *intf);
+void gb_interface_disable(struct gb_interface *intf);
+int gb_interface_add(struct gb_interface *intf);
+void gb_interface_del(struct gb_interface *intf);
+void gb_interface_put(struct gb_interface *intf);
+void gb_interface_mailbox_event(struct gb_interface *intf, u16 result,
+ u32 mailbox);
+
+int gb_interface_request_mode_switch(struct gb_interface *intf);
+
+#endif /* __INTERFACE_H */
diff --git a/include/linux/greybus/manifest.h b/include/linux/greybus/manifest.h
new file mode 100644
index 000000000000..88aa7e44cad5
--- /dev/null
+++ b/include/linux/greybus/manifest.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus manifest parsing
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#ifndef __MANIFEST_H
+#define __MANIFEST_H
+
+struct gb_interface;
+bool gb_manifest_parse(struct gb_interface *intf, void *data, size_t size);
+
+#endif /* __MANIFEST_H */
diff --git a/include/linux/greybus/module.h b/include/linux/greybus/module.h
new file mode 100644
index 000000000000..2a27e520ee94
--- /dev/null
+++ b/include/linux/greybus/module.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus Module code
+ *
+ * Copyright 2016 Google Inc.
+ * Copyright 2016 Linaro Ltd.
+ */
+
+#ifndef __MODULE_H
+#define __MODULE_H
+
+struct gb_module {
+ struct device dev;
+ struct gb_host_device *hd;
+
+ struct list_head hd_node;
+
+ u8 module_id;
+ size_t num_interfaces;
+
+ bool disconnected;
+
+ struct gb_interface *interfaces[0];
+};
+#define to_gb_module(d) container_of(d, struct gb_module, dev)
+
+struct gb_module *gb_module_create(struct gb_host_device *hd, u8 module_id,
+ size_t num_interfaces);
+int gb_module_add(struct gb_module *module);
+void gb_module_del(struct gb_module *module);
+void gb_module_put(struct gb_module *module);
+
+#endif /* __MODULE_H */
diff --git a/include/linux/greybus/operation.h b/include/linux/greybus/operation.h
new file mode 100644
index 000000000000..17ba3daf111b
--- /dev/null
+++ b/include/linux/greybus/operation.h
@@ -0,0 +1,224 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus operations
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#ifndef __OPERATION_H
+#define __OPERATION_H
+
+#include <linux/completion.h>
+
+struct gb_operation;
+
+/* The default amount of time a request is given to complete */
+#define GB_OPERATION_TIMEOUT_DEFAULT 1000 /* milliseconds */
+
+/*
+ * The top bit of the type in an operation message header indicates
+ * whether the message is a request (bit clear) or response (bit set)
+ */
+#define GB_MESSAGE_TYPE_RESPONSE ((u8)0x80)
+
+enum gb_operation_result {
+ GB_OP_SUCCESS = 0x00,
+ GB_OP_INTERRUPTED = 0x01,
+ GB_OP_TIMEOUT = 0x02,
+ GB_OP_NO_MEMORY = 0x03,
+ GB_OP_PROTOCOL_BAD = 0x04,
+ GB_OP_OVERFLOW = 0x05,
+ GB_OP_INVALID = 0x06,
+ GB_OP_RETRY = 0x07,
+ GB_OP_NONEXISTENT = 0x08,
+ GB_OP_UNKNOWN_ERROR = 0xfe,
+ GB_OP_MALFUNCTION = 0xff,
+};
+
+#define GB_OPERATION_MESSAGE_SIZE_MIN sizeof(struct gb_operation_msg_hdr)
+#define GB_OPERATION_MESSAGE_SIZE_MAX U16_MAX
+
+/*
+ * Protocol code should only examine the payload and payload_size fields, and
+ * host-controller drivers may use the hcpriv field. All other fields are
+ * intended to be private to the operations core code.
+ */
+struct gb_message {
+ struct gb_operation *operation;
+ struct gb_operation_msg_hdr *header;
+
+ void *payload;
+ size_t payload_size;
+
+ void *buffer;
+
+ void *hcpriv;
+};
+
+#define GB_OPERATION_FLAG_INCOMING BIT(0)
+#define GB_OPERATION_FLAG_UNIDIRECTIONAL BIT(1)
+#define GB_OPERATION_FLAG_SHORT_RESPONSE BIT(2)
+#define GB_OPERATION_FLAG_CORE BIT(3)
+
+#define GB_OPERATION_FLAG_USER_MASK (GB_OPERATION_FLAG_SHORT_RESPONSE | \
+ GB_OPERATION_FLAG_UNIDIRECTIONAL)
+
+/*
+ * A Greybus operation is a remote procedure call performed over a
+ * connection between two UniPro interfaces.
+ *
+ * Every operation consists of a request message sent to the other
+ * end of the connection coupled with a reply message returned to
+ * the sender. Every operation has a type, whose interpretation is
+ * dependent on the protocol associated with the connection.
+ *
+ * Only four things in an operation structure are intended to be
+ * directly usable by protocol handlers: the operation's connection
+ * pointer; the operation type; the request message payload (and
+ * size); and the response message payload (and size). Note that a
+ * message with a 0-byte payload has a null message payload pointer.
+ *
+ * In addition, every operation has a result, which is an errno
+ * value. Protocol handlers access the operation result using
+ * gb_operation_result().
+ */
+typedef void (*gb_operation_callback)(struct gb_operation *);
+struct gb_operation {
+ struct gb_connection *connection;
+ struct gb_message *request;
+ struct gb_message *response;
+
+ unsigned long flags;
+ u8 type;
+ u16 id;
+ int errno; /* Operation result */
+
+ struct work_struct work;
+ gb_operation_callback callback;
+ struct completion completion;
+ struct timer_list timer;
+
+ struct kref kref;
+ atomic_t waiters;
+
+ int active;
+ struct list_head links; /* connection->operations */
+
+ void *private;
+};
+
+static inline bool
+gb_operation_is_incoming(struct gb_operation *operation)
+{
+ return operation->flags & GB_OPERATION_FLAG_INCOMING;
+}
+
+static inline bool
+gb_operation_is_unidirectional(struct gb_operation *operation)
+{
+ return operation->flags & GB_OPERATION_FLAG_UNIDIRECTIONAL;
+}
+
+static inline bool
+gb_operation_short_response_allowed(struct gb_operation *operation)
+{
+ return operation->flags & GB_OPERATION_FLAG_SHORT_RESPONSE;
+}
+
+static inline bool gb_operation_is_core(struct gb_operation *operation)
+{
+ return operation->flags & GB_OPERATION_FLAG_CORE;
+}
+
+void gb_connection_recv(struct gb_connection *connection,
+ void *data, size_t size);
+
+int gb_operation_result(struct gb_operation *operation);
+
+size_t gb_operation_get_payload_size_max(struct gb_connection *connection);
+struct gb_operation *
+gb_operation_create_flags(struct gb_connection *connection,
+ u8 type, size_t request_size,
+ size_t response_size, unsigned long flags,
+ gfp_t gfp);
+
+static inline struct gb_operation *
+gb_operation_create(struct gb_connection *connection,
+ u8 type, size_t request_size,
+ size_t response_size, gfp_t gfp)
+{
+ return gb_operation_create_flags(connection, type, request_size,
+ response_size, 0, gfp);
+}
+
+struct gb_operation *
+gb_operation_create_core(struct gb_connection *connection,
+ u8 type, size_t request_size,
+ size_t response_size, unsigned long flags,
+ gfp_t gfp);
+
+void gb_operation_get(struct gb_operation *operation);
+void gb_operation_put(struct gb_operation *operation);
+
+bool gb_operation_response_alloc(struct gb_operation *operation,
+ size_t response_size, gfp_t gfp);
+
+int gb_operation_request_send(struct gb_operation *operation,
+ gb_operation_callback callback,
+ unsigned int timeout,
+ gfp_t gfp);
+int gb_operation_request_send_sync_timeout(struct gb_operation *operation,
+ unsigned int timeout);
+static inline int
+gb_operation_request_send_sync(struct gb_operation *operation)
+{
+ return gb_operation_request_send_sync_timeout(operation,
+ GB_OPERATION_TIMEOUT_DEFAULT);
+}
+
+void gb_operation_cancel(struct gb_operation *operation, int errno);
+void gb_operation_cancel_incoming(struct gb_operation *operation, int errno);
+
+void greybus_message_sent(struct gb_host_device *hd,
+ struct gb_message *message, int status);
+
+int gb_operation_sync_timeout(struct gb_connection *connection, int type,
+ void *request, int request_size,
+ void *response, int response_size,
+ unsigned int timeout);
+int gb_operation_unidirectional_timeout(struct gb_connection *connection,
+ int type, void *request, int request_size,
+ unsigned int timeout);
+
+static inline int gb_operation_sync(struct gb_connection *connection, int type,
+ void *request, int request_size,
+ void *response, int response_size)
+{
+ return gb_operation_sync_timeout(connection, type,
+ request, request_size, response, response_size,
+ GB_OPERATION_TIMEOUT_DEFAULT);
+}
+
+static inline int gb_operation_unidirectional(struct gb_connection *connection,
+ int type, void *request, int request_size)
+{
+ return gb_operation_unidirectional_timeout(connection, type,
+ request, request_size, GB_OPERATION_TIMEOUT_DEFAULT);
+}
+
+static inline void *gb_operation_get_data(struct gb_operation *operation)
+{
+ return operation->private;
+}
+
+static inline void gb_operation_set_data(struct gb_operation *operation,
+ void *data)
+{
+ operation->private = data;
+}
+
+int gb_operation_init(void);
+void gb_operation_exit(void);
+
+#endif /* !__OPERATION_H */
diff --git a/include/linux/greybus/svc.h b/include/linux/greybus/svc.h
new file mode 100644
index 000000000000..e7452057cfe4
--- /dev/null
+++ b/include/linux/greybus/svc.h
@@ -0,0 +1,101 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus SVC code
+ *
+ * Copyright 2015 Google Inc.
+ * Copyright 2015 Linaro Ltd.
+ */
+
+#ifndef __SVC_H
+#define __SVC_H
+
+#define GB_SVC_CPORT_FLAG_E2EFC BIT(0)
+#define GB_SVC_CPORT_FLAG_CSD_N BIT(1)
+#define GB_SVC_CPORT_FLAG_CSV_N BIT(2)
+
+enum gb_svc_state {
+ GB_SVC_STATE_RESET,
+ GB_SVC_STATE_PROTOCOL_VERSION,
+ GB_SVC_STATE_SVC_HELLO,
+};
+
+enum gb_svc_watchdog_bite {
+ GB_SVC_WATCHDOG_BITE_RESET_UNIPRO = 0,
+ GB_SVC_WATCHDOG_BITE_PANIC_KERNEL,
+};
+
+struct gb_svc_watchdog;
+
+struct svc_debugfs_pwrmon_rail {
+ u8 id;
+ struct gb_svc *svc;
+};
+
+struct gb_svc {
+ struct device dev;
+
+ struct gb_host_device *hd;
+ struct gb_connection *connection;
+ enum gb_svc_state state;
+ struct ida device_id_map;
+ struct workqueue_struct *wq;
+
+ u16 endo_id;
+ u8 ap_intf_id;
+
+ u8 protocol_major;
+ u8 protocol_minor;
+
+ struct gb_svc_watchdog *watchdog;
+ enum gb_svc_watchdog_bite action;
+
+ struct dentry *debugfs_dentry;
+ struct svc_debugfs_pwrmon_rail *pwrmon_rails;
+};
+#define to_gb_svc(d) container_of(d, struct gb_svc, dev)
+
+struct gb_svc *gb_svc_create(struct gb_host_device *hd);
+int gb_svc_add(struct gb_svc *svc);
+void gb_svc_del(struct gb_svc *svc);
+void gb_svc_put(struct gb_svc *svc);
+
+int gb_svc_pwrmon_intf_sample_get(struct gb_svc *svc, u8 intf_id,
+ u8 measurement_type, u32 *value);
+int gb_svc_intf_device_id(struct gb_svc *svc, u8 intf_id, u8 device_id);
+int gb_svc_route_create(struct gb_svc *svc, u8 intf1_id, u8 dev1_id,
+ u8 intf2_id, u8 dev2_id);
+void gb_svc_route_destroy(struct gb_svc *svc, u8 intf1_id, u8 intf2_id);
+int gb_svc_connection_create(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
+ u8 intf2_id, u16 cport2_id, u8 cport_flags);
+void gb_svc_connection_destroy(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
+ u8 intf2_id, u16 cport2_id);
+int gb_svc_intf_eject(struct gb_svc *svc, u8 intf_id);
+int gb_svc_intf_vsys_set(struct gb_svc *svc, u8 intf_id, bool enable);
+int gb_svc_intf_refclk_set(struct gb_svc *svc, u8 intf_id, bool enable);
+int gb_svc_intf_unipro_set(struct gb_svc *svc, u8 intf_id, bool enable);
+int gb_svc_intf_activate(struct gb_svc *svc, u8 intf_id, u8 *intf_type);
+int gb_svc_intf_resume(struct gb_svc *svc, u8 intf_id);
+
+int gb_svc_dme_peer_get(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
+ u32 *value);
+int gb_svc_dme_peer_set(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
+ u32 value);
+int gb_svc_intf_set_power_mode(struct gb_svc *svc, u8 intf_id, u8 hs_series,
+ u8 tx_mode, u8 tx_gear, u8 tx_nlanes,
+ u8 tx_amplitude, u8 tx_hs_equalizer,
+ u8 rx_mode, u8 rx_gear, u8 rx_nlanes,
+ u8 flags, u32 quirks,
+ struct gb_svc_l2_timer_cfg *local,
+ struct gb_svc_l2_timer_cfg *remote);
+int gb_svc_intf_set_power_mode_hibernate(struct gb_svc *svc, u8 intf_id);
+int gb_svc_ping(struct gb_svc *svc);
+int gb_svc_watchdog_create(struct gb_svc *svc);
+void gb_svc_watchdog_destroy(struct gb_svc *svc);
+bool gb_svc_watchdog_enabled(struct gb_svc *svc);
+int gb_svc_watchdog_enable(struct gb_svc *svc);
+int gb_svc_watchdog_disable(struct gb_svc *svc);
+
+int gb_svc_protocol_init(void);
+void gb_svc_protocol_exit(void);
+
+#endif /* __SVC_H */