75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only
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*
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* Copyright (C) 2020-2021 Intel Corporation.
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*/
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#ifndef IOSM_IPC_TRACE_H
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#define IOSM_IPC_TRACE_H
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#include <linux/debugfs.h>
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#include <linux/relay.h>
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#include "iosm_ipc_chnl_cfg.h"
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#include "iosm_ipc_imem_ops.h"
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/**
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* enum trace_ctrl_mode - State of trace channel
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* @TRACE_DISABLE: mode for disable trace
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* @TRACE_ENABLE: mode for enable trace
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*/
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enum trace_ctrl_mode {
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TRACE_DISABLE = 0,
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TRACE_ENABLE,
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};
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/**
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* struct iosm_trace - Struct for trace interface
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* @ipc_rchan: Pointer to relay channel
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* @ctrl_file: Pointer to trace control file
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* @ipc_imem: Imem instance
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* @dev: Pointer to device struct
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* @channel: Channel instance
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* @chl_id: Channel Indentifier
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* @trc_mutex: Mutex used for read and write mode
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* @mode: Mode for enable and disable trace
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*/
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struct iosm_trace {
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struct rchan *ipc_rchan;
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struct dentry *ctrl_file;
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struct iosm_imem *ipc_imem;
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struct device *dev;
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struct ipc_mem_channel *channel;
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enum ipc_channel_id chl_id;
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struct mutex trc_mutex; /* Mutex used for read and write mode */
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enum trace_ctrl_mode mode;
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};
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#ifdef CONFIG_WWAN_DEBUGFS
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static inline bool ipc_is_trace_channel(struct iosm_imem *ipc_mem, u16 chl_id)
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{
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return ipc_mem->trace && ipc_mem->trace->chl_id == chl_id;
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}
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struct iosm_trace *ipc_trace_init(struct iosm_imem *ipc_imem);
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void ipc_trace_deinit(struct iosm_trace *ipc_trace);
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void ipc_trace_port_rx(struct iosm_imem *ipc_imem, struct sk_buff *skb);
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#else
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static inline bool ipc_is_trace_channel(struct iosm_imem *ipc_mem, u16 chl_id)
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{
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return false;
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}
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static inline void ipc_trace_port_rx(struct iosm_imem *ipc_imem,
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struct sk_buff *skb)
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{
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dev_kfree_skb(skb);
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}
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#endif
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#endif
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