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 15 enum 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 31 struct 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 71 struct gb_interface *gb_interface_create(struct gb_module *module, 72 u8 interface_id); 73 int gb_interface_activate(struct gb_interface *intf); 74 void gb_interface_deactivate(struct gb_interface *intf); 75 int gb_interface_enable(struct gb_interface *intf); 76 void gb_interface_disable(struct gb_interface *intf); 77 int gb_interface_add(struct gb_interface *intf); 78 void gb_interface_del(struct gb_interface *intf); 79 void gb_interface_put(struct gb_interface *intf); 80 void gb_interface_mailbox_event(struct gb_interface *intf, u16 result, 81 u32 mailbox); 82 83 int gb_interface_request_mode_switch(struct gb_interface *intf); 84 85 #endif /* __INTERFACE_H */ 86