libsigrok/hwplugin.c

203 lines
4.5 KiB
C

/*
* This file is part of the sigrok project.
*
* Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <dirent.h>
#include <string.h>
#include <glib.h>
#include <gmodule.h>
#include <sigrok.h>
source_callback_add source_cb_add = NULL;
source_callback_remove source_cb_remove = NULL;
/* The list of loaded plugins lives here. */
GSList *plugins;
/*
* This enumerates which plugin capabilities correspond to user-settable
* options.
*/
struct hwcap_option hwcap_options[] = {
{HWCAP_SAMPLERATE, T_UINT64, "Sample rate", "samplerate"},
{0, 0, NULL, NULL}
};
extern struct device_plugin saleae_logic_plugin_info;
extern struct device_plugin ols_plugin_info;
extern struct device_plugin zeroplus_logic_cube_plugin_info;
extern struct device_plugin asix_sigma_plugin_info;
int load_hwplugins(void)
{
plugins =
g_slist_append(plugins, (gpointer *) &saleae_logic_plugin_info);
plugins = g_slist_append(plugins, (gpointer *) &ols_plugin_info);
plugins = g_slist_append(plugins,
(gpointer *) &zeroplus_logic_cube_plugin_info);
plugins = g_slist_append(plugins, (gpointer *)&asix_sigma_plugin_info);
return SIGROK_OK;
}
GSList *list_hwplugins(void)
{
return plugins;
}
struct sigrok_device_instance *sigrok_device_instance_new(int index, int status,
char *vendor, char *model, char *version)
{
struct sigrok_device_instance *sdi;
sdi = malloc(sizeof(struct sigrok_device_instance));
if (!sdi)
return NULL;
sdi->index = index;
sdi->status = status;
sdi->instance_type = -1;
sdi->vendor = strdup(vendor);
sdi->model = strdup(model);
sdi->version = strdup(version);
sdi->usb = NULL;
return sdi;
}
struct sigrok_device_instance *get_sigrok_device_instance(
GSList *device_instances, int device_index)
{
struct sigrok_device_instance *sdi;
GSList *l;
sdi = NULL;
for (l = device_instances; l; l = l->next) {
sdi = (struct sigrok_device_instance *)(l->data);
if (sdi->index == device_index)
return sdi;
}
g_warning("could not find device index %d instance", device_index);
return NULL;
}
void sigrok_device_instance_free(struct sigrok_device_instance *sdi)
{
switch (sdi->instance_type) {
case USB_INSTANCE:
usb_device_instance_free(sdi->usb);
break;
case SERIAL_INSTANCE:
serial_device_instance_free(sdi->serial);
break;
/* No specific type, nothing extra to free. */
}
free(sdi->vendor);
free(sdi->model);
free(sdi->version);
free(sdi);
}
struct usb_device_instance *usb_device_instance_new(uint8_t bus,
uint8_t address, struct libusb_device_handle *hdl)
{
struct usb_device_instance *udi;
udi = malloc(sizeof(struct usb_device_instance));
if (!udi)
return NULL;
udi->bus = bus;
udi->address = address;
udi->devhdl = hdl;
return udi;
}
void usb_device_instance_free(struct usb_device_instance *usb)
{
/* QUICK HACK */
usb = usb;
/* Nothing to do for this device instance type. */
}
struct serial_device_instance *serial_device_instance_new(char *port, int fd)
{
struct serial_device_instance *serial;
serial = malloc(sizeof(struct serial_device_instance));
if (!serial)
return NULL;
serial->port = strdup(port);
serial->fd = fd;
return serial;
}
void serial_device_instance_free(struct serial_device_instance *serial)
{
free(serial->port);
}
int find_hwcap(int *capabilities, int hwcap)
{
int i;
for (i = 0; capabilities[i]; i++)
if (capabilities[i] == hwcap)
return TRUE;
return FALSE;
}
struct hwcap_option *find_hwcap_option(int hwcap)
{
struct hwcap_option *hwo;
int i;
hwo = NULL;
for (i = 0; hwcap_options[i].capability; i++) {
if (hwcap_options[i].capability == hwcap) {
hwo = &hwcap_options[i];
break;
}
}
return hwo;
}
void source_remove(int fd)
{
if (source_cb_remove)
source_cb_remove(fd);
}
void source_add(int fd, int events, int timeout, receive_data_callback rcv_cb,
void *user_data)
{
if (source_cb_add)
source_cb_add(fd, events, timeout, rcv_cb, user_data);
}