1 /* Copyright (c) 2012 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_IODEV_INFO_H_ 7 #define CRAS_IODEV_INFO_H_ 8 9 #include <stddef.h> 10 #include <stdint.h> 11 12 #define CRAS_IODEV_NAME_BUFFER_SIZE 64 13 #define CRAS_NODE_TYPE_BUFFER_SIZE 32 14 #define CRAS_NODE_MIC_POS_BUFFER_SIZE 128 15 #define CRAS_NODE_NAME_BUFFER_SIZE 64 16 #define CRAS_NODE_HOTWORD_MODEL_BUFFER_SIZE 16 17 18 /* Identifying information about an IO device. 19 * idx - iodev index. 20 * name - Name displayed to the user. 21 * stable_id - ID that does not change due to device plug/unplug or reboot. 22 * stable_id_new - New stable_id, it will be deprecated and be put on 23 * stable_id. 24 */ 25 struct __attribute__ ((__packed__)) cras_iodev_info { 26 uint32_t idx; 27 char name[CRAS_IODEV_NAME_BUFFER_SIZE]; 28 uint32_t stable_id; 29 uint32_t stable_id_new; 30 }; 31 32 /* Identifying information about an ionode on an iodev. 33 * iodev_idx - Index of the device this node belongs. 34 * ionode_idx - Index of this node on the device. 35 * plugged - Set true if this node is known to be plugged in. 36 * plugged_time - If plugged is true, this is the time it was attached. 37 * active - If this is the node currently being used. 38 * volume - per-node volume (0-100) 39 * capture_gain - per-node capture gain/attenuation (in 100*dBFS) 40 * left_right_swapped - Set true if left and right channels are swapped. 41 * stable_id - ID that does not change due to device plug/unplug or reboot. 42 * stable_id_new - New stable_id, it will be deprecated and be put on 43 * stable_id. 44 * mic_positions - Positions of the mic array. 45 * type - Type displayed to the user. 46 * name - Name displayed to the user. 47 * active_hotword_model - name of the currently selected hotword model. 48 */ 49 struct __attribute__ ((__packed__)) cras_ionode_info { 50 uint32_t iodev_idx; 51 uint32_t ionode_idx; 52 int32_t plugged; 53 int32_t active; 54 struct { int64_t tv_sec; int64_t tv_usec; } plugged_time; 55 uint32_t volume; 56 int32_t capture_gain; 57 int32_t left_right_swapped; 58 uint32_t type_enum; 59 uint32_t stable_id; 60 uint32_t stable_id_new; 61 char mic_positions[CRAS_NODE_MIC_POS_BUFFER_SIZE]; 62 char type[CRAS_NODE_TYPE_BUFFER_SIZE]; 63 char name[CRAS_NODE_NAME_BUFFER_SIZE]; 64 char active_hotword_model[CRAS_NODE_HOTWORD_MODEL_BUFFER_SIZE]; 65 }; 66 67 /* This is used in the cras_client_set_node_attr API. 68 * IONODE_ATTR_PLUGGED - set the node as plugged/unplugged. 69 * IONODE_ATTR_VOLUME - set the node's output volume. 70 * IONODE_ATTR_CAPTURE_GAIN - set the node's capture gain. 71 * IONODE_ATTR_SWAP_LEFT_RIGHT - Swap the node's left and right channel. 72 */ 73 enum ionode_attr { 74 IONODE_ATTR_PLUGGED, 75 IONODE_ATTR_VOLUME, 76 IONODE_ATTR_CAPTURE_GAIN, 77 IONODE_ATTR_SWAP_LEFT_RIGHT 78 }; 79 80 #endif /* CRAS_IODEV_INFO_H_ */ 81
