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

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2016 George Hopkins <george-hopkins@null.net>
   5  * Copyright (C) 2016 Matthieu Guillaumin <matthieu@guillaum.in>
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <string.h>
  22 #include <config.h>
  23 #include "protocol.h"
  24
  25 #define SERIALCOMM "115200/8n1"
  26
  27 static const uint32_t scanopts[] = {
  28         SR_CONF_CONN,
  29 };
  30
  31 static const uint32_t drvopts[] = {
  32         SR_CONF_SOUNDLEVELMETER,
  33 };
  34
  35 static const uint32_t devopts[] = {
  36         SR_CONF_CONTINUOUS | SR_CONF_SET,
  37         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
  38         SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  39         SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  40         SR_CONF_SPL_MEASUREMENT_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  41         SR_CONF_POWER_OFF | SR_CONF_GET | SR_CONF_SET,
  42         SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  43 };
  44
  45 static const char *weight_freq[] = {
  46         "A", "C",
  47 };
  48
  49 static const char *weight_time[] = {
  50         "F", "S",
  51 };
  52
  53 static const uint64_t meas_ranges[][2] = {
  54         { 30, 130 },
  55         { 30, 80 },
  56         { 50, 100 },
  57         { 80, 130 },
  58 };
  59
  60 static const char *data_sources[] = {
  61         "Live", "Memory",
  62 };
  63
  64 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  65 {
  66         struct dev_context *devc;
  67         struct sr_config *src;
  68         struct sr_serial_dev_inst *serial;
  69         struct sr_dev_inst *sdi;
  70         GSList *l;
  71         const char *conn;
  72
  73         conn = NULL;
  74         for (l = options; l; l = l->next) {
  75                 src = l->data;
  76                 if (src->key == SR_CONF_CONN)
  77                         conn = g_variant_get_string(src->data, NULL);
  78         }
  79         if (!conn)
  80                 return NULL;
  81
  82         serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
  83
  84         if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
  85                 return NULL;
  86
  87         sdi = g_malloc0(sizeof(struct sr_dev_inst));
  88         sdi->status = SR_ST_INACTIVE;
  89         sdi->vendor = g_strdup("PCE");
  90         sdi->model = g_strdup("PCE-322A");
  91         devc = g_malloc0(sizeof(struct dev_context));
  92         devc->cur_mqflags = SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_FREQ_WEIGHT_A;
  93         sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
  94         sdi->inst_type = SR_INST_SERIAL;
  95         sdi->priv = devc;
  96         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
  97
  98         serial_close(serial);
  99
 100         return std_scan_complete(di, g_slist_append(NULL, sdi));
 101 }
 102
 103 static int config_get(uint32_t key, GVariant **data,
 104         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 105 {
 106         struct dev_context *devc;
 107         uint64_t low, high;
 108         uint64_t tmp;
 109         int ret;
 110
 111         (void)cg;
 112
 113         if (!sdi)
 114                 return SR_ERR_ARG;
 115
 116         devc = sdi->priv;
 117         ret = SR_OK;
 118         switch (key) {
 119         case SR_CONF_LIMIT_SAMPLES:
 120                 *data = g_variant_new_uint64(devc->limit_samples);
 121                 break;
 122         case SR_CONF_SPL_WEIGHT_FREQ:
 123                 tmp = pce_322a_weight_freq_get(sdi);
 124                 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
 125                         *data = g_variant_new_string("A");
 126                 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
 127                         *data = g_variant_new_string("C");
 128                 else
 129                         return SR_ERR;
 130                 break;
 131         case SR_CONF_SPL_WEIGHT_TIME:
 132                 tmp = pce_322a_weight_time_get(sdi);
 133                 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
 134                         *data = g_variant_new_string("F");
 135                 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
 136                         *data = g_variant_new_string("S");
 137                 else
 138                         return SR_ERR;
 139                 break;
 140         case SR_CONF_SPL_MEASUREMENT_RANGE:
 141                 if ((ret = pce_322a_meas_range_get(sdi, &low, &high)) == SR_OK)
 142                         *data = std_gvar_tuple_u64(low, high);
 143                 break;
 144         case SR_CONF_POWER_OFF:
 145                 *data = g_variant_new_boolean(FALSE);
 146                 break;
 147         case SR_CONF_DATA_SOURCE:
 148                 if (devc->cur_data_source == DATA_SOURCE_LIVE)
 149                         *data = g_variant_new_string("Live");
 150                 else
 151                         *data = g_variant_new_string("Memory");
 152                 break;
 153         default:
 154                 return SR_ERR_NA;
 155         }
 156
 157         return ret;
 158 }
 159
 160 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 161         const struct sr_channel_group *cg)
 162 {
 163         struct dev_context *devc;
 164         uint64_t tmp_u64;
 165         int ret, idx;
 166
 167         (void)cg;
 168
 169         devc = sdi->priv;
 170
 171         ret = SR_OK;
 172         switch (key) {
 173         case SR_CONF_LIMIT_SAMPLES:
 174                 tmp_u64 = g_variant_get_uint64(data);
 175                 devc->limit_samples = tmp_u64;
 176                 ret = SR_OK;
 177                 break;
 178         case SR_CONF_SPL_WEIGHT_FREQ:
 179                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(weight_freq))) < 0)
 180                         return SR_ERR_ARG;
 181                 ret = pce_322a_weight_freq_set(sdi, (weight_freq[idx][0] == 'A') ?
 182                         SR_MQFLAG_SPL_FREQ_WEIGHT_A : SR_MQFLAG_SPL_FREQ_WEIGHT_C);
 183                 break;
 184         case SR_CONF_SPL_WEIGHT_TIME:
 185                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(weight_time))) < 0)
 186                         return SR_ERR_ARG;
 187                 ret = pce_322a_weight_time_set(sdi, (weight_time[idx][0] == 'F') ?
 188                         SR_MQFLAG_SPL_TIME_WEIGHT_F : SR_MQFLAG_SPL_TIME_WEIGHT_S);
 189                 break;
 190         case SR_CONF_SPL_MEASUREMENT_RANGE:
 191                 if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(meas_ranges))) < 0)
 192                         return SR_ERR_ARG;
 193                 ret = pce_322a_meas_range_set(sdi, meas_ranges[idx][0], meas_ranges[idx][1]);
 194                 break;
 195         case SR_CONF_POWER_OFF:
 196                 if (g_variant_get_boolean(data))
 197                         ret = pce_322a_power_off(sdi);
 198                 break;
 199         case SR_CONF_DATA_SOURCE:
 200                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(data_sources))) < 0)
 201                         return SR_ERR_ARG;
 202                 devc->cur_data_source = idx;
 203                 break;
 204         default:
 205                 ret = SR_ERR_NA;
 206         }
 207
 208         return ret;
 209 }
 210
 211 static int config_list(uint32_t key, GVariant **data,
 212         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 213 {
 214         switch (key) {
 215         case SR_CONF_SCAN_OPTIONS:
 216         case SR_CONF_DEVICE_OPTIONS:
 217                 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 218         case SR_CONF_SPL_WEIGHT_FREQ:
 219                 *data = g_variant_new_strv(ARRAY_AND_SIZE(weight_freq));
 220                 break;
 221         case SR_CONF_SPL_WEIGHT_TIME:
 222                 *data = g_variant_new_strv(ARRAY_AND_SIZE(weight_time));
 223                 break;
 224         case SR_CONF_SPL_MEASUREMENT_RANGE:
 225                 *data = std_gvar_tuple_array(ARRAY_AND_SIZE(meas_ranges));
 226                 break;
 227         case SR_CONF_DATA_SOURCE:
 228                 *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
 229                 break;
 230         default:
 231                 return SR_ERR_NA;
 232         }
 233
 234         return SR_OK;
 235 }
 236
 237 static int dev_open(struct sr_dev_inst *sdi)
 238 {
 239         int ret;
 240
 241         ret = std_serial_dev_open(sdi);
 242         if (ret != SR_OK)
 243                 return ret;
 244
 245         return pce_322a_connect(sdi);
 246 }
 247
 248 static int dev_close(struct sr_dev_inst *sdi)
 249 {
 250         /*
 251          * Ensure device gets properly disconnected even when there was
 252          * no acquisition.
 253          */
 254         pce_322a_disconnect(sdi);
 255
 256         return std_serial_dev_close(sdi);
 257 }
 258
 259 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 260 {
 261         struct dev_context *devc;
 262         struct sr_serial_dev_inst *serial;
 263
 264         devc = sdi->priv;
 265         devc->buffer_len = 0;
 266         devc->memory_state = MEM_STATE_REQUEST_MEMORY_USAGE;
 267
 268         std_session_send_df_header(sdi);
 269
 270         serial = sdi->conn;
 271         serial_source_add(sdi->session, serial, G_IO_IN, 150,
 272                         pce_322a_receive_data, (void *)sdi);
 273
 274         return SR_OK;
 275 }
 276
 277 static struct sr_dev_driver pce_322a_driver_info = {
 278         .name = "pce-322a",
 279         .longname = "PCE PCE-322A",
 280         .api_version = 1,
 281         .init = std_init,
 282         .cleanup = std_cleanup,
 283         .scan = scan,
 284         .dev_list = std_dev_list,
 285         .dev_clear = std_dev_clear,
 286         .config_get = config_get,
 287         .config_set = config_set,
 288         .config_list = config_list,
 289         .dev_open = dev_open,
 290         .dev_close = dev_close,
 291         .dev_acquisition_start = dev_acquisition_start,
 292         .dev_acquisition_stop = std_serial_dev_acquisition_stop,
 293         .context = NULL,
 294 };
 295 SR_REGISTER_DEV_DRIVER(pce_322a_driver_info);