libsigrok/hardware/tondaj-sl-814/api.c

271 lines
5.8 KiB
C
Raw Normal View History

/*
* This file is part of the sigrok project.
*
* Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <fcntl.h>
#include <glib.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"
2012-11-12 02:00:32 +00:00
#define SERIALCOMM "9600/8e1"
static const int hwopts[] = {
SR_CONF_CONN,
SR_CONF_SERIALCOMM,
0,
};
static const int hwcaps[] = {
SR_CONF_SOUNDLEVELMETER,
SR_CONF_LIMIT_SAMPLES,
SR_CONF_CONTINUOUS,
0,
};
SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
static struct sr_dev_driver *di = &tondaj_sl_814_driver_info;
/* Properly close and free all devices. */
static int clear_instances(void)
{
struct sr_dev_inst *sdi;
struct drv_context *drvc;
struct dev_context *devc;
GSList *l;
if (!(drvc = di->priv))
return SR_OK;
for (l = drvc->instances; l; l = l->next) {
if (!(sdi = l->data))
continue;
if (!(devc = sdi->priv))
continue;
sr_serial_dev_inst_free(devc->serial);
sr_dev_inst_free(sdi);
}
g_slist_free(drvc->instances);
drvc->instances = NULL;
return SR_OK;
}
static int hw_init(struct sr_context *sr_ctx)
{
return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
}
static GSList *hw_scan(GSList *options)
{
struct drv_context *drvc;
struct dev_context *devc;
struct sr_dev_inst *sdi;
struct sr_config *src;
struct sr_probe *probe;
GSList *devices, *l;
const char *conn, *serialcomm;
drvc = di->priv;
drvc->instances = NULL;
devices = NULL;
conn = serialcomm = NULL;
for (l = options; l; l = l->next) {
if (!(src = l->data)) {
sr_err("Invalid option data, skipping.");
continue;
}
switch (src->key) {
case SR_CONF_CONN:
conn = src->value;
break;
case SR_CONF_SERIALCOMM:
serialcomm = src->value;
break;
default:
sr_err("Unknown option %d, skipping.", src->key);
break;
}
}
if (!conn)
return NULL;
2012-11-12 02:00:32 +00:00
if (!serialcomm)
serialcomm = SERIALCOMM;
if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Tondaj",
"SL-814", NULL))) {
sr_err("Failed to create device instance.");
return NULL;
}
if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
sr_err("Device context malloc failed.");
return NULL;
}
2012-11-12 02:00:32 +00:00
if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm)))
return NULL;
if (serial_open(devc->serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
return NULL;
2012-11-12 02:00:32 +00:00
sdi->priv = devc;
sdi->driver = di;
probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1");
if (!probe) {
sr_err("Failed to create probe.");
return NULL;
}
sdi->probes = g_slist_append(sdi->probes, probe);
drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
return devices;
}
static GSList *hw_dev_list(void)
{
return ((struct drv_context *)(di->priv))->instances;
}
static int hw_dev_open(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
devc = sdi->priv;
if (serial_open(devc->serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
return SR_ERR;
sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
static int hw_dev_close(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
devc = sdi->priv;
2012-11-12 02:00:32 +00:00
if (devc->serial && devc->serial->fd != -1) {
serial_close(devc->serial);
sdi->status = SR_ST_INACTIVE;
}
return SR_OK;
}
static int hw_cleanup(void)
{
clear_instances();
return SR_OK;
}
static int config_set(int id, const void *value, const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
if (sdi->status != SR_ST_ACTIVE) {
sr_err("Device inactive, can't set config options.");
return SR_ERR;
}
devc = sdi->priv;
switch (id) {
case SR_CONF_LIMIT_SAMPLES:
devc->limit_samples = *(const uint64_t *)value;
sr_dbg("Setting sample limit to %" PRIu64 ".",
devc->limit_samples);
break;
default:
sr_err("Unknown hardware capability: %d.", id);
return SR_ERR_ARG;
}
return SR_OK;
}
2013-01-25 01:32:05 +00:00
static int config_list(int key, const void **data, const struct sr_dev_inst *sdi)
{
(void)sdi;
switch (key) {
case SR_CONF_SCAN_OPTIONS:
*data = hwopts;
break;
case SR_CONF_DEVICE_OPTIONS:
*data = hwcaps;
break;
2013-01-25 01:32:05 +00:00
default:
return SR_ERR_ARG;
}
return SR_OK;
}
static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
{
struct dev_context *devc;
devc = sdi->priv;
devc->cb_data = cb_data;
/* Send header packet to the session bus. */
std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
/* Poll every 500ms, or whenever some data comes in. */
sr_source_add(devc->serial->fd, G_IO_IN, 500,
tondaj_sl_814_receive_data, (void *)sdi);
return SR_OK;
}
static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close,
((struct dev_context *)(sdi->priv))->serial, DRIVER_LOG_DOMAIN);
}
SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info = {
.name = "tondaj-sl-814",
.longname = "Tondaj SL-814",
.api_version = 1,
.init = hw_init,
.cleanup = hw_cleanup,
.scan = hw_scan,
.dev_list = hw_dev_list,
.dev_clear = clear_instances,
.config_get = NULL,
.config_set = config_set,
2013-01-25 01:32:05 +00:00
.config_list = config_list,
.dev_open = hw_dev_open,
.dev_close = hw_dev_close,
.dev_acquisition_start = hw_dev_acquisition_start,
.dev_acquisition_stop = hw_dev_acquisition_stop,
.priv = NULL,
};