LXR linux/drivers/staging/greybus/interface.h

   1/*
   2 * Greybus Interface Block code
   3 *
   4 * Copyright 2014 Google Inc.
   5 * Copyright 2014 Linaro Ltd.
   6 *
   7 * Released under the GPLv2 only.
   8 */
   9
  10#ifndef __INTERFACE_H
  11#define __INTERFACE_H
  12
  13enum gb_interface_type {
  14        GB_INTERFACE_TYPE_INVALID = 0,
  15        GB_INTERFACE_TYPE_UNKNOWN,
  16        GB_INTERFACE_TYPE_DUMMY,
  17        GB_INTERFACE_TYPE_UNIPRO,
  18        GB_INTERFACE_TYPE_GREYBUS,
  19};
  20
  21#define GB_INTERFACE_QUIRK_NO_CPORT_FEATURES            BIT(0)
  22#define GB_INTERFACE_QUIRK_NO_INIT_STATUS               BIT(1)
  23#define GB_INTERFACE_QUIRK_NO_GMP_IDS                   BIT(2)
  24#define GB_INTERFACE_QUIRK_FORCED_DISABLE               BIT(3)
  25#define GB_INTERFACE_QUIRK_LEGACY_MODE_SWITCH           BIT(4)
  26#define GB_INTERFACE_QUIRK_NO_BUNDLE_ACTIVATE           BIT(5)
  27#define GB_INTERFACE_QUIRK_NO_PM                        BIT(6)
  28
  29struct gb_interface {
  30        struct device dev;
  31        struct gb_control *control;
  32
  33        struct list_head bundles;
  34        struct list_head module_node;
  35        struct list_head manifest_descs;
  36        u8 interface_id;        /* Physical location within the Endo */
  37        u8 device_id;
  38        u8 features;            /* Feature flags set in the manifest */
  39
  40        enum gb_interface_type type;
  41
  42        u32 ddbl1_manufacturer_id;
  43        u32 ddbl1_product_id;
  44        u32 vendor_id;
  45        u32 product_id;
  46        u64 serial_number;
  47
  48        struct gb_host_device *hd;
  49        struct gb_module *module;
  50
  51        unsigned long quirks;
  52
  53        struct mutex mutex;
  54
  55        bool disconnected;
  56
  57        bool ejected;
  58        bool removed;
  59        bool active;
  60        bool enabled;
  61        bool mode_switch;
  62        bool dme_read;
  63
  64        struct work_struct mode_switch_work;
  65        struct completion mode_switch_completion;
  66};
  67#define to_gb_interface(d) container_of(d, struct gb_interface, dev)
  68
  69struct gb_interface *gb_interface_create(struct gb_module *module,
  70                                         u8 interface_id);
  71int gb_interface_activate(struct gb_interface *intf);
  72void gb_interface_deactivate(struct gb_interface *intf);
  73int gb_interface_enable(struct gb_interface *intf);
  74void gb_interface_disable(struct gb_interface *intf);
  75int gb_interface_add(struct gb_interface *intf);
  76void gb_interface_del(struct gb_interface *intf);
  77void gb_interface_put(struct gb_interface *intf);
  78void gb_interface_mailbox_event(struct gb_interface *intf, u16 result,
  79                                                                u32 mailbox);
  80
  81int gb_interface_request_mode_switch(struct gb_interface *intf);
  82
  83#endif /* __INTERFACE_H */
  84