1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * Copyright 2022 Google LLC
8 #ifndef __SANDBOX_HOST__
9 #define __SANDBOX_HOST__
12 * struct host_sb_plat - platform data for a host device
14 * @label: Label for this device (allocated)
15 * @filename: Name of file this is attached to, or NULL (allocated)
16 * @fd: File descriptor of file, or 0 for none (file is not open)
25 * struct host_ops - operations supported by UCLASS_HOST
29 * @attach_file: - Attach a new file to the device
31 * @attach_file.dev: Device to update
32 * @attach_file.filename: Name of the file, e.g. "/path/to/disk.img"
33 * @attach_file.Returns: 0 if OK, -EEXIST if a file is already attached, other -ve on
36 int (*attach_file)(struct udevice *dev, const char *filename);
39 * @detach_file: - Detach a file from the device
41 * @detach_file.dev: Device to detach from
42 * @detach_file.Returns: 0 if OK, -ENOENT if no file is attached, other -ve on other
45 int (*detach_file)(struct udevice *dev);
48 #define host_get_ops(dev) ((struct host_ops *)(dev)->driver->ops)
51 * host_attach_file() - Attach a new file to the device
53 * @dev: Device to update
54 * @filename: Name of the file, e.g. "/path/to/disk.img"
55 * Returns: 0 if OK, -EEXIST if a file is already attached, other -ve on
58 int host_attach_file(struct udevice *dev, const char *filename);
61 * host_detach_file() - Detach a file from the device
63 * @dev: Device to detach from
64 * Returns: 0 if OK, -ENOENT if no file is attached, other -ve on other
67 int host_detach_file(struct udevice *dev);
70 * host_create_device() - Create a new host device
72 * Any existing device with the same label is removed and unbound first
74 * @label: Label of the attachment, e.g. "test1"
75 * @removable: true if the device should be marked as removable, false
76 * if it is fixed. See enum blk_flag_t
77 * @devp: Returns the device created, on success
78 * Returns: 0 if OK, -ve on error
80 int host_create_device(const char *label, bool removable,
81 struct udevice **devp);
84 * host_create_attach_file() - Create a new host device attached to a file
86 * @label: Label of the attachment, e.g. "test1"
87 * @filename: Name of the file, e.g. "/path/to/disk.img"
88 * @removable: true if the device should be marked as removable, false
89 * if it is fixed. See enum blk_flag_t
90 * @devp: Returns the device created, on success
91 * Returns: 0 if OK, -ve on error
93 int host_create_attach_file(const char *label, const char *filename,
94 bool removable, struct udevice **devp);
97 * host_find_by_label() - Find a host by label
99 * Searches all host devices to find one with the given label
101 * @label: Label to find
102 * Returns: associated device, or NULL if not found
104 struct udevice *host_find_by_label(const char *label);
107 * host_get_cur_dev() - Get the current device
109 * Returns current device, or NULL if none
111 struct udevice *host_get_cur_dev(void);
114 * host_set_cur_dev() - Set the current device
116 * Sets the current device, or clears it if @dev is NULL
118 * @dev: Device to set as the current one
120 void host_set_cur_dev(struct udevice *dev);
122 #endif /* __SANDBOX_HOST__ */