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/*
* libiio - Library for interfacing industrial I/O (IIO) devices
*
* Copyright (C) 2014 Analog Devices, Inc.
* Author: Paul Cercueil <paul.cercueil@analog.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* */
#ifndef __OPS_H__
#define __OPS_H__
#include "../iio-private.h"
#include "queue.h"
#include <endian.h>
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <poll.h>
#include <sys/socket.h>
#include <unistd.h>
#if WITH_AIO
#include <libaio.h>
#endif
#ifndef __bswap_constant_16
#define __bswap_constant_16(x) \
((unsigned short int) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)))
#endif
#ifndef __bswap_constant_32
#define __bswap_constant_32(x) \
((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
#endif
struct thread_pool;
extern struct thread_pool *main_thread_pool;
struct parser_pdata {
struct iio_context *ctx;
bool stop, verbose;
int fd_in, fd_out;
SLIST_HEAD(ParserDataThdHead, ThdEntry) thdlist_head;
/* Used as temporaries placements by the lexer */
struct iio_device *dev;
struct iio_channel *chn;
bool channel_is_output;
bool fd_in_is_socket, fd_out_is_socket;
#if WITH_AIO
io_context_t aio_ctx;
int aio_eventfd;
pthread_mutex_t aio_mutex;
#endif
struct thread_pool *pool;
ssize_t (*writefd)(struct parser_pdata *pdata, const void *buf, size_t len);
ssize_t (*readfd)(struct parser_pdata *pdata, void *buf, size_t len);
};
extern bool server_demux; /* Defined in iiod.c */
void interpreter(struct iio_context *ctx, int fd_in, int fd_out, bool verbose,
bool is_socket, bool use_aio, struct thread_pool *pool);
int start_usb_daemon(struct iio_context *ctx, const char *ffs,
bool debug, bool use_aio, unsigned int nb_pipes,
struct thread_pool *pool);
int open_dev(struct parser_pdata *pdata, struct iio_device *dev,
size_t samples_count, const char *mask, bool cyclic);
int close_dev(struct parser_pdata *pdata, struct iio_device *dev);
ssize_t rw_dev(struct parser_pdata *pdata, struct iio_device *dev,
unsigned int nb, bool is_write);
ssize_t read_dev_attr(struct parser_pdata *pdata, struct iio_device *dev,
const char *attr, enum iio_attr_type type);
ssize_t write_dev_attr(struct parser_pdata *pdata, struct iio_device *dev,
const char *attr, size_t len, enum iio_attr_type type);
ssize_t read_chn_attr(struct parser_pdata *pdata, struct iio_channel *chn,
const char *attr);
ssize_t write_chn_attr(struct parser_pdata *pdata, struct iio_channel *chn,
const char *attr, size_t len);
ssize_t get_trigger(struct parser_pdata *pdata, struct iio_device *dev);
ssize_t set_trigger(struct parser_pdata *pdata,
struct iio_device *dev, const char *trig);
int set_timeout(struct parser_pdata *pdata, unsigned int timeout);
int set_buffers_count(struct parser_pdata *pdata,
struct iio_device *dev, long value);
ssize_t read_line(struct parser_pdata *pdata, char *buf, size_t len);
ssize_t write_all(struct parser_pdata *pdata, const void *src, size_t len);
static __inline__ void output(struct parser_pdata *pdata, const char *text)
{
if (write_all(pdata, text, strlen(text)) <= 0)
pdata->stop = true;
}
static __inline__ int poll_nointr(struct pollfd *pfd, unsigned int num_pfd)
{
int ret;
do {
ret = poll(pfd, num_pfd, -1);
} while (ret == -1 && errno == EINTR);
return ret;
}
#endif /* __OPS_H__ */
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