src/hardware/tondaj-sl-814/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <config.h>
  22 #include <fcntl.h>
  23 #include <glib.h>
  24 #include <libsigrok/libsigrok.h>
  25 #include "libsigrok-internal.h"
  26 #include "protocol.h"
  27
  28 #define SERIALCOMM "9600/8e1"
  29
  30 static const uint32_t scanopts[] = {
  31         SR_CONF_CONN,
  32         SR_CONF_SERIALCOMM,
  33 };
  34
  35 static const uint32_t devopts[] = {
  36         SR_CONF_SOUNDLEVELMETER,
  37         SR_CONF_CONTINUOUS,
  38         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
  39         SR_CONF_LIMIT_MSEC | SR_CONF_SET,
  40 };
  41
  42 SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
  43
  44 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
  45 {
  46         return std_init(di, sr_ctx, LOG_PREFIX);
  47 }
  48
  49 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  50 {
  51         struct drv_context *drvc;
  52         struct dev_context *devc;
  53         struct sr_dev_inst *sdi;
  54         struct sr_config *src;
  55         GSList *devices, *l;
  56         const char *conn, *serialcomm;
  57         struct sr_serial_dev_inst *serial;
  58
  59         drvc = di->context;
  60         drvc->instances = NULL;
  61
  62         devices = NULL;
  63
  64         conn = serialcomm = NULL;
  65         for (l = options; l; l = l->next) {
  66                 if (!(src = l->data)) {
  67                         sr_err("Invalid option data, skipping.");
  68                         continue;
  69                 }
  70                 switch (src->key) {
  71                 case SR_CONF_CONN:
  72                         conn = g_variant_get_string(src->data, NULL);
  73                         break;
  74                 case SR_CONF_SERIALCOMM:
  75                         serialcomm = g_variant_get_string(src->data, NULL);
  76                         break;
  77                 default:
  78                         sr_err("Unknown option %d, skipping.", src->key);
  79                         break;
  80                 }
  81         }
  82         if (!conn)
  83                 return NULL;
  84         if (!serialcomm)
  85                 serialcomm = SERIALCOMM;
  86
  87         sdi = g_malloc0(sizeof(struct sr_dev_inst));
  88         sdi->status = SR_ST_INACTIVE;
  89         sdi->vendor = g_strdup("Tondaj");
  90         sdi->model = g_strdup("SL-814");
  91         devc = g_malloc0(sizeof(struct dev_context));
  92         sr_sw_limits_init(&devc->limits);
  93
  94         serial = sr_serial_dev_inst_new(conn, serialcomm);
  95
  96         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  97                 return NULL;
  98
  99         sdi->inst_type = SR_INST_SERIAL;
 100         sdi->conn = serial;
 101
 102         sdi->priv = devc;
 103         sdi->driver = di;
 104         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 105         drvc->instances = g_slist_append(drvc->instances, sdi);
 106         devices = g_slist_append(devices, sdi);
 107
 108         return devices;
 109 }
 110
 111 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 112                 const struct sr_channel_group *cg)
 113 {
 114         struct dev_context *devc;
 115
 116         (void)cg;
 117
 118         if (sdi->status != SR_ST_ACTIVE)
 119                 return SR_ERR_DEV_CLOSED;
 120
 121         devc = sdi->priv;
 122
 123         return sr_sw_limits_config_set(&devc->limits, key, data);
 124 }
 125
 126 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 127                 const struct sr_channel_group *cg)
 128 {
 129         (void)sdi;
 130         (void)cg;
 131
 132         switch (key) {
 133         case SR_CONF_SCAN_OPTIONS:
 134                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 135                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 136                 break;
 137         case SR_CONF_DEVICE_OPTIONS:
 138                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 139                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 140                 break;
 141         default:
 142                 return SR_ERR_NA;
 143         }
 144
 145         return SR_OK;
 146 }
 147
 148 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 149 {
 150         struct dev_context *devc = sdi->priv;
 151         struct sr_serial_dev_inst *serial;
 152
 153         if (sdi->status != SR_ST_ACTIVE)
 154                 return SR_ERR_DEV_CLOSED;
 155
 156         std_session_send_df_header(sdi, LOG_PREFIX);
 157
 158         sr_sw_limits_acquisition_start(&devc->limits);
 159
 160         /* Poll every 500ms, or whenever some data comes in. */
 161         serial = sdi->conn;
 162         serial_source_add(sdi->session, serial, G_IO_IN, 500,
 163                       tondaj_sl_814_receive_data, (void *)sdi);
 164
 165         return SR_OK;
 166 }
 167
 168 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 169 {
 170         return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
 171                         sdi->conn, LOG_PREFIX);
 172 }
 173
 174 SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info = {
 175         .name = "tondaj-sl-814",
 176         .longname = "Tondaj SL-814",
 177         .api_version = 1,
 178         .init = init,
 179         .cleanup = std_cleanup,
 180         .scan = scan,
 181         .dev_list = std_dev_list,
 182         .dev_clear = NULL,
 183         .config_get = NULL,
 184         .config_set = config_set,
 185         .config_list = config_list,
 186         .dev_open = std_serial_dev_open,
 187         .dev_close = std_serial_dev_close,
 188         .dev_acquisition_start = dev_acquisition_start,
 189         .dev_acquisition_stop = dev_acquisition_stop,
 190         .context = NULL,
 191 };