libsigrok/hwplugin.c

283 lines
7.0 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 "sigrok.h"
#include "sigrok-internal.h"
/* The list of loaded plugins lives here. */
static GSList *plugins;
/*
* This enumerates which plugin capabilities correspond to user-settable
* options.
*/
/* TODO: This shouldn't be a global. */
SR_API struct sr_hwcap_option sr_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"},
{SR_HWCAP_RLE, SR_T_BOOL, "Run Length Encoding", "rle"},
{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_CHRONOVU_LA8
extern SR_PRIV struct device_plugin chronovu_la8_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. */
SR_PRIV 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_CHRONOVU_LA8
plugins = g_slist_append(plugins, (gpointer *)&chronovu_la8_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;
}
SR_API GSList *sr_list_hwplugins(void)
{
return plugins;
}
SR_API int sr_init_hwplugins(struct sr_device_plugin *plugin)
{
int num_devices, num_probes, i, j;
int num_initialized_devices = 0;
struct sr_device *device;
char **probe_names;
sr_dbg("initializing %s plugin", plugin->name);
num_devices = plugin->init(NULL);
for (i = 0; i < num_devices; i++) {
num_probes = GPOINTER_TO_INT(
plugin->get_device_info(i, SR_DI_NUM_PROBES));
probe_names = (char **)plugin->get_device_info(i,
SR_DI_PROBE_NAMES);
if (!probe_names) {
sr_warn("hwplugin: %s: plugin %s does not return a "
"list of probe names", __func__, plugin->name);
continue;
}
device = sr_device_new(plugin, i);
for (j = 0; j < num_probes; j++)
sr_device_probe_add(device, probe_names[j]);
num_initialized_devices++;
}
return num_initialized_devices;
}
SR_PRIV void sr_cleanup_hwplugins(void)
{
struct sr_device_plugin *plugin;
GSList *l;
for (l = plugins; l; l = l->next) {
plugin = l->data;
if (plugin->cleanup)
plugin->cleanup();
}
}
SR_PRIV 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 = g_try_malloc(sizeof(struct sr_device_instance)))) {
sr_err("hwplugin: %s: sdi malloc failed", __func__);
return NULL;
}
sdi->index = index;
sdi->status = status;
sdi->instance_type = -1;
sdi->vendor = vendor ? g_strdup(vendor) : NULL;
sdi->model = model ? g_strdup(model) : NULL;
sdi->version = version ? g_strdup(version) : NULL;
sdi->priv = NULL;
return sdi;
}
SR_PRIV 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;
}
sr_warn("could not find device index %d instance", device_index);
return NULL;
}
SR_PRIV void sr_device_instance_free(struct sr_device_instance *sdi)
{
g_free(sdi->priv);
g_free(sdi->vendor);
g_free(sdi->model);
g_free(sdi->version);
g_free(sdi);
}
#ifdef HAVE_LIBUSB_1_0
SR_PRIV 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 = g_try_malloc(sizeof(struct sr_usb_device_instance)))) {
sr_err("hwplugin: %s: udi malloc failed", __func__);
return NULL;
}
udi->bus = bus;
udi->address = address;
udi->devhdl = hdl; /* TODO: Check if this is NULL? */
return udi;
}
SR_PRIV void sr_usb_device_instance_free(struct sr_usb_device_instance *usb)
{
/* Avoid compiler warnings. */
(void)usb;
/* Nothing to do for this device instance type. */
}
#endif
SR_PRIV struct sr_serial_device_instance *sr_serial_device_instance_new(
const char *port, int fd)
{
struct sr_serial_device_instance *serial;
if (!(serial = g_try_malloc(sizeof(struct sr_serial_device_instance)))) {
sr_err("hwplugin: %s: serial malloc failed", __func__);
return NULL;
}
serial->port = g_strdup(port);
serial->fd = fd;
return serial;
}
SR_PRIV void sr_serial_device_instance_free(
struct sr_serial_device_instance *serial)
{
g_free(serial->port);
}
SR_API int sr_find_hwcap(int *capabilities, int hwcap)
{
int i;
for (i = 0; capabilities[i]; i++) {
if (capabilities[i] == hwcap)
return TRUE;
}
return FALSE;
}
SR_API struct sr_hwcap_option *sr_find_hwcap_option(int hwcap)
{
int i;
for (i = 0; sr_hwcap_options[i].capability; i++) {
if (sr_hwcap_options[i].capability == hwcap)
return &sr_hwcap_options[i];
}
return NULL;
}
/* unnecessary level of indirection follows. */
SR_PRIV void sr_source_remove(int fd)
{
sr_session_source_remove(fd);
}
SR_PRIV void sr_source_add(int fd, int events, int timeout,
sr_receive_data_callback rcv_cb, void *user_data)
{
sr_session_source_add(fd, events, timeout, rcv_cb, user_data);
}