/*
* Copyright 2020 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* Author: Pau Espin Pedrol <pespin@sysmocom.de>
*
* SPDX-License-Identifier: 0BSD
*
    Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted.
    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
    AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
    PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once

#include <osmocom/core/select.h>
#include "shm.h"

extern struct ipc_sock_state *global_ipc_sock_state;

/* 8 channels are plenty */
extern struct ipc_sock_state *global_ctrl_socks[8];
extern struct ipc_shm_io *ios_tx_to_device[8];
extern struct ipc_shm_io *ios_rx_from_device[8];

struct ipc_sock_state {
	struct osmo_fd listen_bfd; /* fd for listen socket */
	struct osmo_fd conn_bfd; /* fd for connection to lcr */
	struct llist_head upqueue; /* queue for sending messages */
};

int ipc_sock_init(const char *path, struct ipc_sock_state **global_state_var,
		  int (*sock_callback_fn)(struct osmo_fd *fd, unsigned int what), int n);

int ipc_rx_greeting_req(struct ipc_sk_if_greeting *greeting_req);
int ipc_rx_info_req(struct ipc_sk_if_info_req *info_req);
int ipc_rx_open_req(struct ipc_sk_if_open_req *open_req);

int ipc_rx_chan_start_req(struct ipc_sk_chan_if_op_void *req, uint8_t chan_nr);
int ipc_rx_chan_stop_req(struct ipc_sk_chan_if_op_void *req, uint8_t chan_nr);
int ipc_rx_chan_setgain_req(struct ipc_sk_chan_if_gain *req, uint8_t chan_nr);
int ipc_rx_chan_setfreq_req(struct ipc_sk_chan_if_freq_req *req, uint8_t chan_nr);