/* * This file is part of the libsigrok project. * * Copyright (C) 2012 Bert Vermeulen * * 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 . */ #include #include "libsigrok.h" #include "libsigrok-internal.h" #include "protocol.h" #include #include #include #include #include /* The Colead SL-5868P uses this. */ #define SERIALCOMM "2400/8n1" static const int hwopts[] = { SR_CONF_CONN, SR_CONF_SERIALCOMM, 0, }; static const int hwcaps[] = { SR_CONF_SOUNDLEVELMETER, SR_CONF_LIMIT_SAMPLES, SR_CONF_LIMIT_MSEC, SR_CONF_CONTINUOUS, 0, }; SR_PRIV struct sr_dev_driver colead_slm_driver_info; static struct sr_dev_driver *di = &colead_slm_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) { struct drv_context *drvc; if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { sr_err("Driver context malloc failed."); return SR_ERR; } drvc->sr_ctx = sr_ctx; di->priv = drvc; return SR_OK; } 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; devices = NULL; drvc = di->priv; drvc->instances = NULL; conn = serialcomm = NULL; for (l = options; l; l = l->next) { src = l->data; switch (src->key) { case SR_CONF_CONN: conn = src->value; break; case SR_CONF_SERIALCOMM: serialcomm = src->value; break; } } if (!conn) return NULL; if (!serialcomm) serialcomm = SERIALCOMM; if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Colead", "SL-5868P", NULL))) return NULL; if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { sr_dbg("failed to malloc devc"); return NULL; } if (!(devc->serial = sr_serial_dev_inst_new(conn, serialcomm))) return NULL; sdi->priv = devc; sdi->driver = di; if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) 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) { struct drv_context *drvc; drvc = di->priv; return drvc->instances; } static int hw_dev_open(struct sr_dev_inst *sdi) { struct dev_context *devc; if (!(devc = sdi->priv)) { sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } if (serial_open(devc->serial, SERIAL_RDWR) != 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; if (!(devc = sdi->priv)) { sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } 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) return SR_ERR; if (!(devc = sdi->priv)) { sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } switch (id) { case SR_CONF_LIMIT_MSEC: /* TODO: not yet implemented */ if (*(const uint64_t *)value == 0) { sr_err("LIMIT_MSEC can't be 0."); return SR_ERR; } devc->limit_msec = *(const uint64_t *)value; sr_dbg("Setting time limit to %" PRIu64 "ms.", devc->limit_msec); break; 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 capability: %d.", id); return SR_ERR; break; } return SR_OK; } 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; default: return SR_ERR_ARG; } return SR_OK; } static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) { struct sr_datafeed_packet packet; struct sr_datafeed_header header; struct dev_context *devc; if (!(devc = sdi->priv)) { sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } sr_dbg("Starting acquisition."); devc->cb_data = cb_data; /* Send header packet to the session bus. */ sr_dbg("Sending SR_DF_HEADER."); packet.type = SR_DF_HEADER; packet.payload = (uint8_t *)&header; header.feed_version = 1; gettimeofday(&header.starttime, NULL); sr_session_send(devc->cb_data, &packet); /* Poll every 150ms, or whenever some data comes in. */ sr_source_add(devc->serial->fd, G_IO_IN, 150, colead_slm_receive_data, (void *)sdi); return SR_OK; } static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) { struct sr_datafeed_packet packet; struct dev_context *devc; if (sdi->status != SR_ST_ACTIVE) return SR_ERR; if (!(devc = sdi->priv)) { sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } sr_dbg("Stopping acquisition."); sr_source_remove(devc->serial->fd); hw_dev_close((struct sr_dev_inst *)sdi); /* Send end packet to the session bus. */ sr_dbg("Sending SR_DF_END."); packet.type = SR_DF_END; sr_session_send(cb_data, &packet); return SR_OK; } SR_PRIV struct sr_dev_driver colead_slm_driver_info = { .name = "colead-slm", .longname = "Colead SLM", .api_version = 1, .init = hw_init, .cleanup = hw_cleanup, .scan = hw_scan, .dev_list = hw_dev_list, .dev_clear = clear_instances, .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, };