| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 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 */ |