libsigrok/hwplugin.c

242 lines
5.7 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 "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <dirent.h>
#include <string.h>
#include <glib.h>
#include <sigrok.h>
/* The list of loaded plugins lives here. */
GSList *plugins;
/*
* This enumerates which plugin capabilities correspond to user-settable
* options.
*/
struct hwcap_option hwcap_options[] = {
{SR_HWCAP_SAMPLERATE, SR_T_UINT64, "Sample rate", "samplerate"},
{SR_HWCAP_CAPTURE_RATIO, SR_T_UINT64, "Pre-trigger capture ratio", "captureratio"},
{SR_HWCAP_PATTERN_MODE, SR_T_CHAR, "Pattern generator mode", "patternmode"},
{0, 0, NULL, NULL},
};
#ifdef HAVE_LA_DEMO
extern struct sr_device_plugin demo_plugin_info;
#endif
#ifdef HAVE_LA_SALEAE_LOGIC
extern struct sr_device_plugin saleae_logic_plugin_info;
#endif
#ifdef HAVE_LA_OLS
extern struct sr_device_plugin ols_plugin_info;
#endif
#ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE
extern struct sr_device_plugin zeroplus_logic_cube_plugin_info;
#endif
#ifdef HAVE_LA_ASIX_SIGMA
extern struct sr_device_plugin asix_sigma_plugin_info;
#endif
#ifdef HAVE_LA_LINK_MSO19
extern struct sr_device_plugin link_mso19_plugin_info;
#endif
#ifdef HAVE_LA_ALSA
extern struct sr_device_plugin alsa_plugin_info;
#endif
/* TODO: No linked list needed, this can be a simple array. */
int load_hwplugins(void)
{
#ifdef HAVE_LA_DEMO
plugins = g_slist_append(plugins, (gpointer *)&demo_plugin_info);
#endif
#ifdef HAVE_LA_SALEAE_LOGIC
plugins =
g_slist_append(plugins, (gpointer *)&saleae_logic_plugin_info);
#endif
#ifdef HAVE_LA_OLS
plugins = g_slist_append(plugins, (gpointer *)&ols_plugin_info);
#endif
#ifdef HAVE_LA_ZEROPLUS_LOGIC_CUBE
plugins = g_slist_append(plugins,
(gpointer *)&zeroplus_logic_cube_plugin_info);
#endif
#ifdef HAVE_LA_ASIX_SIGMA
plugins = g_slist_append(plugins, (gpointer *)&asix_sigma_plugin_info);
#endif
#ifdef HAVE_LA_LINK_MSO19
plugins = g_slist_append(plugins, (gpointer *)&link_mso19_plugin_info);
#endif
#ifdef HAVE_LA_ALSA
plugins = g_slist_append(plugins, (gpointer *)&alsa_plugin_info);
#endif
return SR_OK;
}
GSList *list_hwplugins(void)
{
return plugins;
}
struct sr_device_instance *sr_device_instance_new(int index, int status,
const char *vendor, const char *model, const char *version)
{
struct sr_device_instance *sdi;
if (!(sdi = malloc(sizeof(struct sr_device_instance))))
return NULL;
sdi->index = index;
sdi->status = status;
sdi->instance_type = -1;
sdi->vendor = vendor ? strdup(vendor) : strdup("(unknown)");
sdi->model = model ? strdup(model) : NULL;
sdi->version = version ? strdup(version) : NULL;
sdi->priv = NULL;
sdi->usb = NULL;
return sdi;
}
struct sr_device_instance *sr_get_device_instance(GSList *device_instances,
int device_index)
{
struct sr_device_instance *sdi;
GSList *l;
for (l = device_instances; l; l = l->next) {
sdi = (struct sr_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 sr_device_instance_free(struct sr_device_instance *sdi)
{
switch (sdi->instance_type) {
#ifdef HAVE_LIBUSB_1_0
case SR_USB_INSTANCE:
sr_usb_device_instance_free(sdi->usb);
break;
#endif
case SR_SERIAL_INSTANCE:
sr_serial_device_instance_free(sdi->serial);
break;
default:
/* No specific type, nothing extra to free. */
break;
}
free(sdi->vendor);
free(sdi->model);
free(sdi->version);
free(sdi);
}
#ifdef HAVE_LIBUSB_1_0
struct sr_usb_device_instance *sr_usb_device_instance_new(uint8_t bus,
uint8_t address, struct libusb_device_handle *hdl)
{
struct sr_usb_device_instance *udi;
if (!(udi = malloc(sizeof(struct sr_usb_device_instance))))
return NULL;
udi->bus = bus;
udi->address = address;
udi->devhdl = hdl; /* TODO: Check if this is NULL? */
return udi;
}
void sr_usb_device_instance_free(struct sr_usb_device_instance *usb)
{
/* Avoid compiler warnings. */
usb = usb;
/* Nothing to do for this device instance type. */
}
#endif
struct sr_serial_device_instance *sr_serial_device_instance_new(
const char *port, int fd)
{
struct sr_serial_device_instance *serial;
if (!(serial = malloc(sizeof(struct sr_serial_device_instance))))
return NULL;
serial->port = strdup(port);
serial->fd = fd;
return serial;
}
void sr_serial_device_instance_free(struct sr_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)
{
int i;
for (i = 0; hwcap_options[i].capability; i++) {
if (hwcap_options[i].capability == hwcap)
return &hwcap_options[i];
}
return NULL;
}
/* unnecessary level of indirection follows. */
void source_remove(int fd)
{
sr_session_source_remove(fd);
}
void source_add(int fd, int events, int timeout, receive_data_callback rcv_cb,
void *user_data)
{
sr_session_source_add(fd, events, timeout, rcv_cb, user_data);
}