/*
* This file is part of the libsigrok project.
*
- * Copyright (C) 2014-17 Kumar Abhishek <abhishek@theembeddedkitchen.net>
+ * Copyright (C) 2014-2017 Kumar Abhishek <abhishek@theembeddedkitchen.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include "protocol.h"
#include "beaglelogic.h"
-static int beaglelogic_open_nonblock(struct dev_context *devc) {
+static int beaglelogic_open_nonblock(struct dev_context *devc)
+{
devc->fd = open(BEAGLELOGIC_DEV_NODE, O_RDONLY | O_NONBLOCK);
- return (devc->fd == -1 ? SR_ERR : SR_OK);
+
+ return ((devc->fd == -1) ? SR_ERR : SR_OK);
}
-static int beaglelogic_close(struct dev_context *devc) {
+static int beaglelogic_close(struct dev_context *devc)
+{
return close(devc->fd);
}
-static int beaglelogic_get_buffersize(struct dev_context *devc) {
+static int beaglelogic_get_buffersize(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_GET_BUFFER_SIZE, &devc->buffersize);
}
-static int beaglelogic_set_buffersize(struct dev_context *devc) {
+static int beaglelogic_set_buffersize(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_SET_BUFFER_SIZE, devc->buffersize);
}
/* This is treated differently as it gets a uint64_t while a uint32_t is read */
-static int beaglelogic_get_samplerate(struct dev_context *devc) {
+static int beaglelogic_get_samplerate(struct dev_context *devc)
+{
uint32_t arg, err;
+
err = ioctl(devc->fd, IOCTL_BL_GET_SAMPLE_RATE, &arg);
devc->cur_samplerate = arg;
+
return err;
}
-static int beaglelogic_set_samplerate(struct dev_context *devc) {
+static int beaglelogic_set_samplerate(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_SET_SAMPLE_RATE,
(uint32_t)devc->cur_samplerate);
}
-static int beaglelogic_get_sampleunit(struct dev_context *devc) {
+static int beaglelogic_get_sampleunit(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_GET_SAMPLE_UNIT, &devc->sampleunit);
}
-static int beaglelogic_set_sampleunit(struct dev_context *devc) {
+static int beaglelogic_set_sampleunit(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_SET_SAMPLE_UNIT, devc->sampleunit);
}
-static int beaglelogic_get_triggerflags(struct dev_context *devc) {
+static int beaglelogic_get_triggerflags(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_GET_TRIGGER_FLAGS, &devc->triggerflags);
}
-static int beaglelogic_set_triggerflags(struct dev_context *devc) {
+static int beaglelogic_set_triggerflags(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_SET_TRIGGER_FLAGS, devc->triggerflags);
}
-static int beaglelogic_get_lasterror(struct dev_context *devc) {
+static int beaglelogic_get_lasterror(struct dev_context *devc)
+{
int fd;
char buf[16];
int ret;
if ((fd = open(BEAGLELOGIC_SYSFS_ATTR(lasterror), O_RDONLY)) == -1)
return SR_ERR;
- if ((ret = read(fd, buf, 16)) < 0)
+ ret = read(fd, buf, 16);
+ close(fd);
+
+ if (ret)
return SR_ERR;
- close(fd);
devc->last_error = strtoul(buf, NULL, 10);
return SR_OK;
}
-static int beaglelogic_start(struct dev_context *devc) {
+static int beaglelogic_start(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_START);
}
-static int beaglelogic_stop(struct dev_context *devc) {
+static int beaglelogic_stop(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_STOP);
}
-static int beaglelogic_get_bufunitsize(struct dev_context *devc) {
+static int beaglelogic_get_bufunitsize(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_GET_BUFUNIT_SIZE, &devc->bufunitsize);
}
-static int beaglelogic_set_bufunitsize(struct dev_context *devc) {
+static int beaglelogic_set_bufunitsize(struct dev_context *devc)
+{
return ioctl(devc->fd, IOCTL_BL_SET_BUFUNIT_SIZE, devc->bufunitsize);
}
-static int beaglelogic_mmap(struct dev_context *devc) {
+static int beaglelogic_mmap(struct dev_context *devc)
+{
if (!devc->buffersize)
beaglelogic_get_buffersize(devc);
devc->sample_buf = mmap(NULL, devc->buffersize,
PROT_READ, MAP_SHARED, devc->fd, 0);
- return (devc->sample_buf == MAP_FAILED ? -1 : SR_OK);
+
+ return ((devc->sample_buf == MAP_FAILED) ? -1 : SR_OK);
}
-static int beaglelogic_munmap(struct dev_context *devc) {
+static int beaglelogic_munmap(struct dev_context *devc)
+{
return munmap(devc->sample_buf, devc->buffersize);
}