/* * This file is part of the libsigrok project. * * Copyright (C) 2012 Uwe Hermann * * 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 #include #include "libsigrok.h" #include "libsigrok-internal.h" #include "protocol.h" #define SERIALCOMM "9600/8e1" static const int32_t hwopts[] = { SR_CONF_CONN, SR_CONF_SERIALCOMM, }; static const int32_t hwcaps[] = { SR_CONF_SOUNDLEVELMETER, SR_CONF_LIMIT_SAMPLES, SR_CONF_CONTINUOUS, }; 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 = g_variant_get_string(src->data, NULL); break; case SR_CONF_SERIALCOMM: serialcomm = g_variant_get_string(src->data, NULL); break; default: sr_err("Unknown option %d, skipping.", src->key); break; } } if (!conn) return NULL; 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; } 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; 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; 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, GVariant *data, const struct sr_dev_inst *sdi) { struct dev_context *devc; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; devc = sdi->priv; switch (id) { case SR_CONF_LIMIT_SAMPLES: devc->limit_samples = g_variant_get_uint64(data); sr_dbg("Setting sample limit to %" PRIu64 ".", devc->limit_samples); break; default: return SR_ERR_NA; } return SR_OK; } static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) { (void)sdi; switch (key) { case SR_CONF_SCAN_OPTIONS: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); break; case SR_CONF_DEVICE_OPTIONS: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); break; default: return SR_ERR_NA; } return SR_OK; } static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) { struct dev_context *devc; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; 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, .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, };