LXR linux/include/linux/greybus/interface.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Greybus Interface Block code
   4 *
   5 * Copyright 2014 Google Inc.
   6 * Copyright 2014 Linaro Ltd.
   7 */
   8
   9#ifndef __INTERFACE_H
  10#define __INTERFACE_H
  11
  12#include <linux/types.h>
  13#include <linux/device.h>
  14
  15enum gb_interface_type {
  16        GB_INTERFACE_TYPE_INVALID = 0,
  17        GB_INTERFACE_TYPE_UNKNOWN,
  18        GB_INTERFACE_TYPE_DUMMY,
  19        GB_INTERFACE_TYPE_UNIPRO,
  20        GB_INTERFACE_TYPE_GREYBUS,
  21};
  22
  23#define GB_INTERFACE_QUIRK_NO_CPORT_FEATURES            BIT(0)
  24#define GB_INTERFACE_QUIRK_NO_INIT_STATUS               BIT(1)
  25#define GB_INTERFACE_QUIRK_NO_GMP_IDS                   BIT(2)
  26#define GB_INTERFACE_QUIRK_FORCED_DISABLE               BIT(3)
  27#define GB_INTERFACE_QUIRK_LEGACY_MODE_SWITCH           BIT(4)
  28#define GB_INTERFACE_QUIRK_NO_BUNDLE_ACTIVATE           BIT(5)
  29#define GB_INTERFACE_QUIRK_NO_PM                        BIT(6)
  30
  31struct gb_interface {
  32        struct device dev;
  33        struct gb_control *control;
  34
  35        struct list_head bundles;
  36        struct list_head module_node;
  37        struct list_head manifest_descs;
  38        u8 interface_id;        /* Physical location within the Endo */
  39        u8 device_id;
  40        u8 features;            /* Feature flags set in the manifest */
  41
  42        enum gb_interface_type type;
  43
  44        u32 ddbl1_manufacturer_id;
  45        u32 ddbl1_product_id;
  46        u32 vendor_id;
  47        u32 product_id;
  48        u64 serial_number;
  49
  50        struct gb_host_device *hd;
  51        struct gb_module *module;
  52
  53        unsigned long quirks;
  54
  55        struct mutex mutex;
  56
  57        bool disconnected;
  58
  59        bool ejected;
  60        bool removed;
  61        bool active;
  62        bool enabled;
  63        bool mode_switch;
  64        bool dme_read;
  65
  66        struct work_struct mode_switch_work;
  67        struct completion mode_switch_completion;
  68};
  69#define to_gb_interface(d) container_of(d, struct gb_interface, dev)
  70
  71struct gb_interface *gb_interface_create(struct gb_module *module,
  72                                         u8 interface_id);
  73int gb_interface_activate(struct gb_interface *intf);
  74void gb_interface_deactivate(struct gb_interface *intf);
  75int gb_interface_enable(struct gb_interface *intf);
  76void gb_interface_disable(struct gb_interface *intf);
  77int gb_interface_add(struct gb_interface *intf);
  78void gb_interface_del(struct gb_interface *intf);
  79void gb_interface_put(struct gb_interface *intf);
  80void gb_interface_mailbox_event(struct gb_interface *intf, u16 result,
  81                                                                u32 mailbox);
  82
  83int gb_interface_request_mode_switch(struct gb_interface *intf);
  84
  85#endif /* __INTERFACE_H */
  86