| Jing Zhou | 076a309 | 2017-02-27 02:43:03 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2017, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #ifndef _CAM_NODE_H_ |
| 14 | #define _CAM_NODE_H_ |
| 15 | |
| 16 | #include "cam_context.h" |
| 17 | #include "cam_hw_mgr_intf.h" |
| 18 | #include "cam_req_mgr_interface.h" |
| 19 | |
| 20 | #define CAM_NODE_NAME_LENGTH_MAX 256 |
| 21 | |
| 22 | #define CAM_NODE_STATE_UNINIT 0 |
| 23 | #define CAM_NODE_STATE_INIT 1 |
| 24 | |
| 25 | /** |
| 26 | * struct cam_node - Singleton Node for camera HW devices |
| 27 | * |
| 28 | * @name: Name for struct cam_node |
| 29 | * @state: Node state: |
| 30 | * 0 = uninitialized, 1 = initialized |
| 31 | * @list_mutex: Mutex for the context pool |
| 32 | * @free_ctx_list: Free context pool list |
| 33 | * @ctx_list: Context list |
| 34 | * @ctx_size: Context list size |
| 35 | * @hw_mgr_intf: Interface for cam_node to HW |
| 36 | * @crm_node_intf: Interface for the CRM to cam_node |
| 37 | * |
| 38 | */ |
| 39 | struct cam_node { |
| 40 | char name[CAM_NODE_NAME_LENGTH_MAX]; |
| 41 | uint32_t state; |
| 42 | |
| 43 | /* context pool */ |
| 44 | struct mutex list_mutex; |
| 45 | struct list_head free_ctx_list; |
| 46 | struct cam_context *ctx_list; |
| 47 | uint32_t ctx_size; |
| 48 | |
| 49 | /* interfaces */ |
| 50 | struct cam_hw_mgr_intf hw_mgr_intf; |
| 51 | struct cam_req_mgr_kmd_ops crm_node_intf; |
| 52 | }; |
| 53 | |
| 54 | /** |
| 55 | * cam_node_handle_ioctl() |
| 56 | * |
| 57 | * @brief: Handle ioctl commands |
| 58 | * |
| 59 | * @node: Node handle |
| 60 | * @cmd: IOCTL command |
| 61 | * |
| 62 | */ |
| 63 | int cam_node_handle_ioctl(struct cam_node *node, struct cam_control *cmd); |
| 64 | |
| 65 | /** |
| 66 | * cam_node_deinit() |
| 67 | * |
| 68 | * @brief: Deinitialization function for the Node interface |
| 69 | * |
| 70 | * @node: Node handle |
| 71 | * |
| 72 | */ |
| 73 | int cam_node_deinit(struct cam_node *node); |
| 74 | |
| 75 | /** |
| Soundrapandian Jeyaprakash | 8d16e27 | 2017-10-12 11:05:37 -0700 | [diff] [blame] | 76 | * cam_node_shutdown() |
| 77 | * |
| 78 | * @brief: Shutdowns/Closes the cam node. |
| 79 | * |
| 80 | * @node: Cam_node pointer |
| 81 | * |
| 82 | */ |
| 83 | int cam_node_shutdown(struct cam_node *node); |
| 84 | |
| 85 | /** |
| Jing Zhou | 076a309 | 2017-02-27 02:43:03 -0800 | [diff] [blame] | 86 | * cam_node_init() |
| 87 | * |
| 88 | * @brief: Initialization function for the Node interface. |
| 89 | * |
| 90 | * @node: Cam_node pointer |
| 91 | * @hw_mgr_intf: HW manager interface blob |
| 92 | * @ctx_list: List of cam_contexts to be added |
| 93 | * @ctx_size: Size of the cam_context |
| 94 | * @name: Name for the node |
| 95 | * |
| 96 | */ |
| 97 | int cam_node_init(struct cam_node *node, struct cam_hw_mgr_intf *hw_mgr_intf, |
| 98 | struct cam_context *ctx_list, uint32_t ctx_size, char *name); |
| 99 | |
| 100 | #endif /* _CAM_NODE_H_ */ |