1 /* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. 2 * Use of this source code is governed by a BSD-style license that can be 3 * found in the LICENSE file. 4 */ 5 6 #ifndef CRAS_BT_IODEV_H_ 7 #define CRAS_BT_IODEV_H_ 8 9 #include "cras_bt_device.h" 10 11 struct cras_iodev; 12 13 /* Creates a bluetooth iodev. */ 14 struct cras_iodev *cras_bt_io_create(struct cras_bt_device *device, 15 struct cras_iodev *dev, 16 enum cras_bt_device_profile profile); 17 18 /* Destroys a bluetooth iodev. */ 19 void cras_bt_io_destroy(struct cras_iodev *bt_iodev); 20 21 /* Looks up for the node of given profile, returns NULL if doesn't exist. */ 22 struct cras_ionode *cras_bt_io_get_profile( 23 struct cras_iodev *bt_iodev, 24 enum cras_bt_device_profile profile); 25 26 /* Appends a profile specific iodev to bt_iodev. */ 27 int cras_bt_io_append(struct cras_iodev *bt_iodev, 28 struct cras_iodev *dev, 29 enum cras_bt_device_profile profile); 30 31 /* Checks if the active node of bt_io matches a profile. */ 32 int cras_bt_io_on_profile(struct cras_iodev *bt_iodev, 33 enum cras_bt_device_profile profile); 34 35 /* Updates the buffer size to the profile specific iodev. */ 36 int cras_bt_io_update_buffer_size(struct cras_iodev *bt_iodev); 37 38 /* Dry-run the profile device removal from bt_iodev. 39 * Returns: 40 * 0 if the bt_iodev will be empty and should to be destroied 41 * after the removal, othersie the value of the next preffered 42 * profile to use. 43 */ 44 unsigned int cras_bt_io_try_remove(struct cras_iodev *bt_iodev, 45 struct cras_iodev *dev); 46 47 /* Removes a profile specific iodev from bt_iodev. 48 * Returns: 49 * 0 if dev is removed and bt_iodev successfully updated to 50 * the new profile, otherwise return negative error code. */ 51 int cras_bt_io_remove(struct cras_iodev *bt_iodev, struct cras_iodev *dev); 52 53 #endif /* CRAS_BT_IODEV_H_ */ 54
