/*
* 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 */
	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);
int ipc_rx_chan_settxatten_req(struct ipc_sk_chan_if_tx_attenuation *req, uint8_t chan_nr);