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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <config.h>
  21 #include <fcntl.h>
  22 #include <glib.h>
  23 #include <libsigrok/libsigrok.h>
  24 #include "libsigrok-internal.h"
  25 #include "protocol.h"
  26
  27 #define SERIALCOMM "9600/8e1"
  28
  29 static const uint32_t scanopts[] = {
  30         SR_CONF_CONN,
  31         SR_CONF_SERIALCOMM,
  32 };
  33
  34 static const uint32_t devopts[] = {
  35         SR_CONF_SOUNDLEVELMETER,
  36         SR_CONF_CONTINUOUS,
  37         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
  38         SR_CONF_LIMIT_MSEC | SR_CONF_SET,
  39 };
  40
  41 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  42 {
  43         struct dev_context *devc;
  44         struct sr_dev_inst *sdi;
  45         struct sr_config *src;
  46         GSList *l;
  47         const char *conn, *serialcomm;
  48         struct sr_serial_dev_inst *serial;
  49
  50         conn = serialcomm = NULL;
  51         for (l = options; l; l = l->next) {
  52                 if (!(src = l->data)) {
  53                         sr_err("Invalid option data, skipping.");
  54                         continue;
  55                 }
  56                 switch (src->key) {
  57                 case SR_CONF_CONN:
  58                         conn = g_variant_get_string(src->data, NULL);
  59                         break;
  60                 case SR_CONF_SERIALCOMM:
  61                         serialcomm = g_variant_get_string(src->data, NULL);
  62                         break;
  63                 default:
  64                         sr_err("Unknown option %d, skipping.", src->key);
  65                         break;
  66                 }
  67         }
  68         if (!conn)
  69                 return NULL;
  70         if (!serialcomm)
  71                 serialcomm = SERIALCOMM;
  72
  73         sdi = g_malloc0(sizeof(struct sr_dev_inst));
  74         sdi->status = SR_ST_INACTIVE;
  75         sdi->vendor = g_strdup("Tondaj");
  76         sdi->model = g_strdup("SL-814");
  77         devc = g_malloc0(sizeof(struct dev_context));
  78         sr_sw_limits_init(&devc->limits);
  79
  80         serial = sr_serial_dev_inst_new(conn, serialcomm);
  81
  82         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  83                 return NULL;
  84
  85         sdi->inst_type = SR_INST_SERIAL;
  86         sdi->conn = serial;
  87
  88         sdi->priv = devc;
  89         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
  90
  91         return std_scan_complete(di, g_slist_append(NULL, sdi));
  92 }
  93
  94 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
  95                 const struct sr_channel_group *cg)
  96 {
  97         struct dev_context *devc;
  98
  99         (void)cg;
 100
 101         if (sdi->status != SR_ST_ACTIVE)
 102                 return SR_ERR_DEV_CLOSED;
 103
 104         devc = sdi->priv;
 105
 106         return sr_sw_limits_config_set(&devc->limits, key, data);
 107 }
 108
 109 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 110                 const struct sr_channel_group *cg)
 111 {
 112         (void)sdi;
 113         (void)cg;
 114
 115         switch (key) {
 116         case SR_CONF_SCAN_OPTIONS:
 117                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 118                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 119                 break;
 120         case SR_CONF_DEVICE_OPTIONS:
 121                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 122                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 123                 break;
 124         default:
 125                 return SR_ERR_NA;
 126         }
 127
 128         return SR_OK;
 129 }
 130
 131 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 132 {
 133         struct dev_context *devc = sdi->priv;
 134         struct sr_serial_dev_inst *serial;
 135
 136         std_session_send_df_header(sdi);
 137
 138         sr_sw_limits_acquisition_start(&devc->limits);
 139
 140         /* Poll every 500ms, or whenever some data comes in. */
 141         serial = sdi->conn;
 142         serial_source_add(sdi->session, serial, G_IO_IN, 500,
 143                       tondaj_sl_814_receive_data, (void *)sdi);
 144
 145         return SR_OK;
 146 }
 147
 148 static struct sr_dev_driver tondaj_sl_814_driver_info = {
 149         .name = "tondaj-sl-814",
 150         .longname = "Tondaj SL-814",
 151         .api_version = 1,
 152         .init = std_init,
 153         .cleanup = std_cleanup,
 154         .scan = scan,
 155         .dev_list = std_dev_list,
 156         .dev_clear = NULL,
 157         .config_get = NULL,
 158         .config_set = config_set,
 159         .config_list = config_list,
 160         .dev_open = std_serial_dev_open,
 161         .dev_close = std_serial_dev_close,
 162         .dev_acquisition_start = dev_acquisition_start,
 163         .dev_acquisition_stop = std_serial_dev_acquisition_stop,
 164         .context = NULL,
 165 };
 166 SR_REGISTER_DEV_DRIVER(tondaj_sl_814_driver_info);