linux/drivers/net/wwan/iosm/iosm_ipc_mux.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2020-21 Intel Corporation.
 */

#include "iosm_ipc_mux_codec.h"

/* At the begin of the runtime phase the IP MUX channel shall created. */
static int ipc_mux_channel_create(struct iosm_mux *ipc_mux)
{ … }

/* Reset the session/if id state. */
static void ipc_mux_session_free(struct iosm_mux *ipc_mux, int if_id)
{ … }

/* Create and send the session open command. */
static struct mux_cmd_open_session_resp *
ipc_mux_session_open_send(struct iosm_mux *ipc_mux, int if_id)
{ … }

/* Open the first IP session. */
static bool ipc_mux_session_open(struct iosm_mux *ipc_mux,
				 struct mux_session_open *session_open)
{ … }

/* Free pending session UL packet. */
static void ipc_mux_session_reset(struct iosm_mux *ipc_mux, int if_id)
{ … }

static void ipc_mux_session_close(struct iosm_mux *ipc_mux,
				  struct mux_session_close *msg)
{ … }

static void ipc_mux_channel_close(struct iosm_mux *ipc_mux,
				  struct mux_channel_close *channel_close_p)
{ … }

/* CP has interrupted AP. If AP is in IP MUX mode, execute the pending ops. */
static int ipc_mux_schedule(struct iosm_mux *ipc_mux, union mux_msg *msg)
{ … }

struct iosm_mux *ipc_mux_init(struct ipc_mux_config *mux_cfg,
			      struct iosm_imem *imem)
{ … }

/* Informs the network stack to restart transmission for all opened session if
 * Flow Control is not ON for that session.
 */
static void ipc_mux_restart_tx_for_all_sessions(struct iosm_mux *ipc_mux)
{ … }

/* Informs the network stack to stop sending further pkt for all opened
 * sessions
 */
static void ipc_mux_stop_netif_for_all_sessions(struct iosm_mux *ipc_mux)
{ … }

void ipc_mux_check_n_restart_tx(struct iosm_mux *ipc_mux)
{ … }

int ipc_mux_get_max_sessions(struct iosm_mux *ipc_mux)
{ … }

enum ipc_mux_protocol ipc_mux_get_active_protocol(struct iosm_mux *ipc_mux)
{ … }

int ipc_mux_open_session(struct iosm_mux *ipc_mux, int session_nr)
{ … }

int ipc_mux_close_session(struct iosm_mux *ipc_mux, int session_nr)
{ … }

void ipc_mux_deinit(struct iosm_mux *ipc_mux)
{ … }