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