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- /* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
- #ifndef _QMI_INTERFACE_PRIV_H_
- #define _QMI_INTERFACE_PRIV_H_
- #include <linux/types.h>
- #include <linux/errno.h>
- #include <linux/mm.h>
- #include <linux/list.h>
- #include <linux/socket.h>
- #include <linux/gfp.h>
- #include <linux/platform_device.h>
- #include <linux/qmi_encdec.h>
- #include <soc/qcom/msm_qmi_interface.h>
- enum txn_type {
- QMI_SYNC_TXN = 1,
- QMI_ASYNC_TXN,
- };
- /**
- * handle_type - Enum to identify QMI handle type
- */
- enum handle_type {
- QMI_CLIENT_HANDLE = 1,
- QMI_SERVICE_HANDLE,
- };
- struct qmi_txn {
- struct list_head list;
- uint16_t txn_id;
- enum txn_type type;
- struct qmi_handle *handle;
- void *enc_data;
- unsigned int enc_data_len;
- struct msg_desc *resp_desc;
- void *resp;
- unsigned int resp_len;
- int resp_received;
- int send_stat;
- void (*resp_cb)(struct qmi_handle *handle, unsigned int msg_id,
- void *msg, void *resp_cb_data, int stat);
- void *resp_cb_data;
- wait_queue_head_t wait_q;
- };
- /**
- * svc_addr - Data structure to maintain a list of service addresses.
- * @list_node: Service address list node used by "svc_addr_list"
- * @port_addr: Service address in <node_id:port_id>.
- */
- struct svc_addr {
- struct list_head list_node;
- struct msm_ipc_port_addr port_addr;
- };
- /**
- * svc_event_nb - Service event notification structure.
- * @nb_lock: Spinlock for the notifier block lists.
- * @service_id: Service id for which list of notifier blocks are maintained.
- * @instance_id: Instance id for which list of notifier blocks are maintained.
- * @svc_event_rcvr_list: List of notifier blocks which clients have registered.
- * @list: Used to chain this structure in a global list.
- * @svc_addr_list_lock: Lock to protect @svc_addr_list.
- * @svc_addr_list: List for mantaining all the address for a specific
- * <service_id:instance_id>.
- */
- struct svc_event_nb {
- spinlock_t nb_lock;
- uint32_t service_id;
- uint32_t instance_id;
- struct raw_notifier_head svc_event_rcvr_list;
- struct list_head list;
- struct mutex svc_addr_list_lock;
- struct list_head svc_addr_list;
- };
- /**
- * req_handle - Data structure to store request information
- * @list: Points to req_handle_list maintained per connection.
- * @conn_h: Connection handle on which the concerned request is received.
- * @msg_id: Message ID of the request.
- * @txn_id: Transaction ID of the request.
- */
- struct req_handle {
- struct list_head list;
- struct qmi_svc_clnt_conn *conn_h;
- uint16_t msg_id;
- uint16_t txn_id;
- };
- /**
- * qmi_svc_clnt_conn - Data structure to identify client service connection
- * @list: List to chain up the client conncection to the connection list.
- * @svc_handle: Service side information of the connection.
- * @clnt_addr: Client side information of the connection.
- * @clnt_addr_len: Length of the client address.
- * @req_handle_list: Pending requests in this connection.
- * @pending_tx_list: Pending response/indications awaiting flow control.
- */
- struct qmi_svc_clnt_conn {
- struct list_head list;
- void *svc_handle;
- void *clnt_addr;
- size_t clnt_addr_len;
- struct list_head req_handle_list;
- struct delayed_work resume_tx_work;
- struct list_head pending_txn_list;
- struct mutex pending_txn_lock;
- };
- #endif
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