libsigrok/src/hardware/pce-322a/api.c

324 lines
7.9 KiB
C

/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2016 George Hopkins <george-hopkins@null.net>
* Copyright (C) 2016 Matthieu Guillaumin <matthieu@guillaum.in>
*
* 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 <config.h>
#include "protocol.h"
#define SERIALCOMM "115200/8n1"
static const uint32_t scanopts[] = {
SR_CONF_CONN,
};
static const uint32_t drvopts[] = {
SR_CONF_SOUNDLEVELMETER,
};
static const uint32_t devopts[] = {
SR_CONF_CONTINUOUS | SR_CONF_SET,
SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
SR_CONF_SPL_MEASUREMENT_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
SR_CONF_POWER_OFF | SR_CONF_GET | SR_CONF_SET,
SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};
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",
};
static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
struct dev_context *devc;
struct sr_config *src;
struct sr_serial_dev_inst *serial;
struct sr_dev_inst *sdi;
GSList *l;
const char *conn;
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;
serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
return NULL;
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INACTIVE;
sdi->vendor = g_strdup("PCE");
sdi->model = g_strdup("PCE-322A");
devc = g_malloc0(sizeof(struct dev_context));
devc->cur_mqflags = SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_FREQ_WEIGHT_A;
sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
sdi->inst_type = SR_INST_SERIAL;
sdi->priv = devc;
sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
serial_close(serial);
return std_scan_complete(di, g_slist_append(NULL, sdi));
}
static int config_get(uint32_t 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;
uint64_t tmp;
int 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_SPL_WEIGHT_FREQ:
tmp = pce_322a_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 = pce_322a_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_SPL_MEASUREMENT_RANGE:
if ((ret = pce_322a_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(uint32_t 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 ret;
const char *tmp_str;
(void)cg;
devc = sdi->priv;
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_SPL_WEIGHT_FREQ:
tmp_str = g_variant_get_string(data, NULL);
if (!strcmp(tmp_str, "A"))
ret = pce_322a_weight_freq_set(sdi,
SR_MQFLAG_SPL_FREQ_WEIGHT_A);
else if (!strcmp(tmp_str, "C"))
ret = pce_322a_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 = pce_322a_weight_time_set(sdi,
SR_MQFLAG_SPL_TIME_WEIGHT_F);
else if (!strcmp(tmp_str, "S"))
ret = pce_322a_weight_time_set(sdi,
SR_MQFLAG_SPL_TIME_WEIGHT_S);
else
return SR_ERR_ARG;
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 = pce_322a_meas_range_set(sdi, low, high);
break;
}
}
break;
case SR_CONF_POWER_OFF:
if (g_variant_get_boolean(data))
ret = pce_322a_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;
break;
default:
ret = SR_ERR_NA;
}
return ret;
}
static int config_list(uint32_t key, GVariant **data,
const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
{
switch (key) {
case SR_CONF_SCAN_OPTIONS:
case SR_CONF_DEVICE_OPTIONS:
return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
case SR_CONF_SPL_WEIGHT_FREQ:
*data = g_variant_new_strv(ARRAY_AND_SIZE(weight_freq));
break;
case SR_CONF_SPL_WEIGHT_TIME:
*data = g_variant_new_strv(ARRAY_AND_SIZE(weight_time));
break;
case SR_CONF_SPL_MEASUREMENT_RANGE:
*data = std_gvar_tuple_array(&meas_ranges, ARRAY_SIZE(meas_ranges));
break;
case SR_CONF_DATA_SOURCE:
*data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int dev_open(struct sr_dev_inst *sdi)
{
int ret;
ret = std_serial_dev_open(sdi);
if (ret != SR_OK)
return ret;
return pce_322a_connect(sdi);
}
static int dev_close(struct sr_dev_inst *sdi)
{
/*
* Ensure device gets properly disconnected even when there was
* no acquisition.
*/
pce_322a_disconnect(sdi);
return std_serial_dev_close(sdi);
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
devc = sdi->priv;
devc->buffer_len = 0;
devc->memory_state = MEM_STATE_REQUEST_MEMORY_USAGE;
std_session_send_df_header(sdi);
serial = sdi->conn;
serial_source_add(sdi->session, serial, G_IO_IN, 150,
pce_322a_receive_data, (void *)sdi);
return SR_OK;
}
static struct sr_dev_driver pce_322a_driver_info = {
.name = "pce-322a",
.longname = "PCE PCE-322A",
.api_version = 1,
.init = std_init,
.cleanup = std_cleanup,
.scan = scan,
.dev_list = std_dev_list,
.dev_clear = std_dev_clear,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
.dev_open = dev_open,
.dev_close = dev_close,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = std_serial_dev_acquisition_stop,
.context = NULL,
};
SR_REGISTER_DEV_DRIVER(pce_322a_driver_info);