linux/drivers/net/wwan/t7xx/t7xx_port_ctrl_msg.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2021, MediaTek Inc.
 * Copyright (c) 2021-2022, Intel Corporation.
 *
 * Authors:
 *  Haijun Liu <[email protected]>
 *  Ricardo Martinez <[email protected]>
 *  Moises Veleta <[email protected]>
 *
 * Contributors:
 *  Amir Hanania <[email protected]>
 *  Chiranjeevi Rapolu <[email protected]>
 *  Eliot Lee <[email protected]>
 *  Sreehari Kancharla <[email protected]>
 */

#include <linux/bitfield.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/kthread.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>

#include "t7xx_port.h"
#include "t7xx_port_proxy.h"
#include "t7xx_state_monitor.h"

#define PORT_MSG_VERSION …
#define PORT_MSG_PRT_CNT …

struct port_msg { … };

static int port_ctl_send_msg_to_md(struct t7xx_port *port, unsigned int msg, unsigned int ex_msg)
{ … }

static int fsm_ee_message_handler(struct t7xx_port *port, struct t7xx_fsm_ctl *ctl,
				  struct sk_buff *skb)
{ … }

/**
 * t7xx_port_enum_msg_handler() - Parse the port enumeration message to create/remove nodes.
 * @md: Modem context.
 * @msg: Message.
 *
 * Used to control create/remove device node.
 *
 * Return:
 * * 0		- Success.
 * * -EFAULT	- Message check failure.
 */
int t7xx_port_enum_msg_handler(struct t7xx_modem *md, void *msg)
{ … }

static int control_msg_handler(struct t7xx_port *port, struct sk_buff *skb)
{ … }

static int port_ctl_rx_thread(void *arg)
{ … }

static int port_ctl_init(struct t7xx_port *port)
{ … }

static void port_ctl_uninit(struct t7xx_port *port)
{ … }

struct port_ops ctl_port_ops = …;