+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 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 <string.h>
-#include "protocol.h"
-
-#define SERIALCOMM "9600/8n1"
-/* 23ms is the longest interval between tokens. */
-#define MAX_SCAN_TIME 25 * 1000
-
-static const int32_t hwopts[] = {
- SR_CONF_CONN,
-};
-
-static const int32_t hwcaps[] = {
- SR_CONF_SOUNDLEVELMETER,
- SR_CONF_LIMIT_SAMPLES,
- SR_CONF_CONTINUOUS,
- SR_CONF_SPL_WEIGHT_FREQ,
- SR_CONF_SPL_WEIGHT_TIME,
- SR_CONF_SPL_MEASUREMENT_RANGE,
- SR_CONF_DATALOG,
- SR_CONF_HOLD_MAX,
- SR_CONF_HOLD_MIN,
- SR_CONF_POWER_OFF,
- SR_CONF_DATA_SOURCE,
-};
-
-static const char *weight_freq[] = {
- "A",
- "C",
-};
-
-static const char *weight_time[] = {
- "F",
- "S",
-};
-
-static const uint64_t meas_ranges[][2] = {
- { 30, 130 },
- { 30, 80 },
- { 50, 100 },
- { 80, 130 },
-};
-
-static const char *data_sources[] = {
- "Live",
- "Memory",
-};
-SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
-static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
-
-
-static int init(struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static GSList *scan(GSList *options)
-{
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_config *src;
- struct sr_serial_dev_inst *serial;
- struct sr_dev_inst *sdi;
- struct sr_channel *ch;
- GSList *l, *devices;
- gint64 start;
- const char *conn;
- unsigned char c;
-
- conn = NULL;
- for (l = options; l; l = l->next) {
- src = l->data;
- if (src->key == SR_CONF_CONN)
- conn = g_variant_get_string(src->data, NULL);
- }
- if (!conn)
- return NULL;
-
- if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
- return NULL;
-
- if (serial_open(serial, SERIAL_RDONLY | SERIAL_NONBLOCK) != SR_OK)
- return NULL;
-
- devices = NULL;
- drvc = di->priv;
- start = g_get_monotonic_time();
- while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
- if (serial_read(serial, &c, 1) == 1 && c == 0xa5) {
- /* Found one. */
- if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "CEM",
- "DT-885x", NULL)))
- return NULL;
-
- if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
- sr_dbg("Device context malloc failed.");
- return NULL;
- }
- devc->cur_mqflags = 0;
- devc->recording = -1;
- devc->cur_meas_range = 0;
- devc->cur_data_source = DATA_SOURCE_LIVE;
- devc->enable_data_source_memory = FALSE;
-
- if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
- return NULL;
-
- sdi->inst_type = SR_INST_SERIAL;
- sdi->priv = devc;
- sdi->driver = di;
- if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL")))
- return NULL;
- sdi->channels = g_slist_append(sdi->channels, ch);
- drvc->instances = g_slist_append(drvc->instances, sdi);
- devices = g_slist_append(devices, sdi);
- break;
- }
- /* It takes about 1ms for a byte to come in. */
- g_usleep(1000);
- }
-
- serial_close(serial);
-
- return devices;
-}
-
-static GSList *dev_list(void)
-{
- return ((struct drv_context *)(di->priv))->instances;
-}
-
-static int dev_open(struct sr_dev_inst *sdi)
-{
- struct sr_serial_dev_inst *serial;
-
- serial = sdi->conn;
- if (serial_open(serial, SERIAL_RDWR) != SR_OK)
- return SR_ERR;
-
- sdi->status = SR_ST_ACTIVE;
-
- return SR_OK;
-}
-
-static int cleanup(void)
-{
- return std_dev_clear(di, NULL);
-}
-
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
- GVariant *range[2];
- uint64_t low, high;
- int tmp, ret;
-
- (void)cg;
-
- if (!sdi)
- return SR_ERR_ARG;
-
- devc = sdi->priv;
- ret = SR_OK;
- switch (key) {
- case SR_CONF_LIMIT_SAMPLES:
- *data = g_variant_new_uint64(devc->limit_samples);
- break;
- case SR_CONF_DATALOG:
- if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
- *data = g_variant_new_boolean(tmp);
- break;
- case SR_CONF_SPL_WEIGHT_FREQ:
- tmp = cem_dt_885x_weight_freq_get(sdi);
- if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
- *data = g_variant_new_string("A");
- else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
- *data = g_variant_new_string("C");
- else
- return SR_ERR;
- break;
- case SR_CONF_SPL_WEIGHT_TIME:
- tmp = cem_dt_885x_weight_time_get(sdi);
- if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
- *data = g_variant_new_string("F");
- else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
- *data = g_variant_new_string("S");
- else
- return SR_ERR;
- break;
- case SR_CONF_HOLD_MAX:
- if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
- *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
- break;
- case SR_CONF_HOLD_MIN:
- if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
- *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
- break;
- case SR_CONF_SPL_MEASUREMENT_RANGE:
- if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
- range[0] = g_variant_new_uint64(low);
- range[1] = g_variant_new_uint64(high);
- *data = g_variant_new_tuple(range, 2);
- }
- break;
- case SR_CONF_POWER_OFF:
- *data = g_variant_new_boolean(FALSE);
- break;
- case SR_CONF_DATA_SOURCE:
- if (devc->cur_data_source == DATA_SOURCE_LIVE)
- *data = g_variant_new_string("Live");
- else
- *data = g_variant_new_string("Memory");
- break;
- default:
- return SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
- uint64_t tmp_u64, low, high;
- unsigned int i;
- int tmp, ret;
- const char *tmp_str;
-
- (void)cg;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- ret = SR_OK;
- switch (key) {
- case SR_CONF_LIMIT_SAMPLES:
- tmp_u64 = g_variant_get_uint64(data);
- devc->limit_samples = tmp_u64;
- ret = SR_OK;
- break;
- case SR_CONF_DATALOG:
- ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
- break;
- case SR_CONF_SPL_WEIGHT_FREQ:
- tmp_str = g_variant_get_string(data, NULL);
- if (!strcmp(tmp_str, "A"))
- ret = cem_dt_885x_weight_freq_set(sdi,
- SR_MQFLAG_SPL_FREQ_WEIGHT_A);
- else if (!strcmp(tmp_str, "C"))
- ret = cem_dt_885x_weight_freq_set(sdi,
- SR_MQFLAG_SPL_FREQ_WEIGHT_C);
- else
- return SR_ERR_ARG;
- break;
- case SR_CONF_SPL_WEIGHT_TIME:
- tmp_str = g_variant_get_string(data, NULL);
- if (!strcmp(tmp_str, "F"))
- ret = cem_dt_885x_weight_time_set(sdi,
- SR_MQFLAG_SPL_TIME_WEIGHT_F);
- else if (!strcmp(tmp_str, "S"))
- ret = cem_dt_885x_weight_time_set(sdi,
- SR_MQFLAG_SPL_TIME_WEIGHT_S);
- else
- return SR_ERR_ARG;
- break;
- case SR_CONF_HOLD_MAX:
- tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
- ret = cem_dt_885x_holdmode_set(sdi, tmp);
- break;
- case SR_CONF_HOLD_MIN:
- tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
- ret = cem_dt_885x_holdmode_set(sdi, tmp);
- break;
- case SR_CONF_SPL_MEASUREMENT_RANGE:
- g_variant_get(data, "(tt)", &low, &high);
- ret = SR_ERR_ARG;
- for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
- if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
- ret = cem_dt_885x_meas_range_set(sdi, low, high);
- break;
- }
- }
- break;
- case SR_CONF_POWER_OFF:
- if (g_variant_get_boolean(data))
- ret = cem_dt_885x_power_off(sdi);
- break;
- case SR_CONF_DATA_SOURCE:
- tmp_str = g_variant_get_string(data, NULL);
- if (!strcmp(tmp_str, "Live"))
- devc->cur_data_source = DATA_SOURCE_LIVE;
- else if (!strcmp(tmp_str, "Memory"))
- devc->cur_data_source = DATA_SOURCE_MEMORY;
- else
- return SR_ERR;
- devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
- break;
- default:
- ret = SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- GVariant *tuple, *range[2];
- GVariantBuilder gvb;
- unsigned int i;
- int ret;
-
- (void)sdi;
- (void)cg;
-
- ret = SR_OK;
- 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;
- case SR_CONF_SPL_WEIGHT_FREQ:
- *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
- break;
- case SR_CONF_SPL_WEIGHT_TIME:
- *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
- break;
- case SR_CONF_SPL_MEASUREMENT_RANGE:
- g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
- for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
- range[0] = g_variant_new_uint64(meas_ranges[i][0]);
- range[1] = g_variant_new_uint64(meas_ranges[i][1]);
- tuple = g_variant_new_tuple(range, 2);
- g_variant_builder_add_value(&gvb, tuple);
- }
- *data = g_variant_builder_end(&gvb);
- break;
- case SR_CONF_DATA_SOURCE:
- *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
- break;
- default:
- return SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
-{
- struct dev_context *devc;
- struct sr_serial_dev_inst *serial;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- devc->cb_data = cb_data;
- devc->state = ST_INIT;
- devc->num_samples = 0;
- devc->buf_len = 0;
-
- /* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, LOG_PREFIX);
-
- /* Poll every 100ms, or whenever some data comes in. */
- serial = sdi->conn;
- serial_source_add(sdi->session, serial, G_IO_IN, 150,
- cem_dt_885x_receive_data, (void *)sdi);
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
- sdi->conn, LOG_PREFIX);
-}
-
-SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
- .name = "cem-dt-885x",
- .longname = "CEM DT-885x",
- .api_version = 1,
- .init = init,
- .cleanup = cleanup,
- .scan = scan,
- .dev_list = dev_list,
- .dev_clear = NULL,
- .config_get = config_get,
- .config_set = config_set,
- .config_list = config_list,
- .dev_open = dev_open,
- .dev_close = std_serial_dev_close,
- .dev_acquisition_start = dev_acquisition_start,
- .dev_acquisition_stop = dev_acquisition_stop,
- .priv = NULL,
-};
projects / libsigrok.git / blobdiff