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 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  43 {
  44         struct drv_context *drvc;
  45         struct dev_context *devc;
  46         struct sr_dev_inst *sdi;
  47         struct sr_config *src;
  48         GSList *devices, *l;
  49         const char *conn, *serialcomm;
  50         struct sr_serial_dev_inst *serial;
  51
  52         drvc = di->context;
  53         drvc->instances = NULL;
  54
  55         devices = NULL;
  56
  57         conn = serialcomm = NULL;
  58         for (l = options; l; l = l->next) {
  59                 if (!(src = l->data)) {
  60                         sr_err("Invalid option data, skipping.");
  61                         continue;
  62                 }
  63                 switch (src->key) {
  64                 case SR_CONF_CONN:
  65                         conn = g_variant_get_string(src->data, NULL);
  66                         break;
  67                 case SR_CONF_SERIALCOMM:
  68                         serialcomm = g_variant_get_string(src->data, NULL);
  69                         break;
  70                 default:
  71                         sr_err("Unknown option %d, skipping.", src->key);
  72                         break;
  73                 }
  74         }
  75         if (!conn)
  76                 return NULL;
  77         if (!serialcomm)
  78                 serialcomm = SERIALCOMM;
  79
  80         sdi = g_malloc0(sizeof(struct sr_dev_inst));
  81         sdi->status = SR_ST_INACTIVE;
  82         sdi->vendor = g_strdup("Tondaj");
  83         sdi->model = g_strdup("SL-814");
  84         devc = g_malloc0(sizeof(struct dev_context));
  85         sr_sw_limits_init(&devc->limits);
  86
  87         serial = sr_serial_dev_inst_new(conn, serialcomm);
  88
  89         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  90                 return NULL;
  91
  92         sdi->inst_type = SR_INST_SERIAL;
  93         sdi->conn = serial;
  94
  95         sdi->priv = devc;
  96         sdi->driver = di;
  97         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
  98         drvc->instances = g_slist_append(drvc->instances, sdi);
  99         devices = g_slist_append(devices, sdi);
 100
 101         return devices;
 102 }
 103
 104 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 105                 const struct sr_channel_group *cg)
 106 {
 107         struct dev_context *devc;
 108
 109         (void)cg;
 110
 111         if (sdi->status != SR_ST_ACTIVE)
 112                 return SR_ERR_DEV_CLOSED;
 113
 114         devc = sdi->priv;
 115
 116         return sr_sw_limits_config_set(&devc->limits, key, data);
 117 }
 118
 119 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 120                 const struct sr_channel_group *cg)
 121 {
 122         (void)sdi;
 123         (void)cg;
 124
 125         switch (key) {
 126         case SR_CONF_SCAN_OPTIONS:
 127                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 128                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 129                 break;
 130         case SR_CONF_DEVICE_OPTIONS:
 131                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 132                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 133                 break;
 134         default:
 135                 return SR_ERR_NA;
 136         }
 137
 138         return SR_OK;
 139 }
 140
 141 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 142 {
 143         struct dev_context *devc = sdi->priv;
 144         struct sr_serial_dev_inst *serial;
 145
 146         if (sdi->status != SR_ST_ACTIVE)
 147                 return SR_ERR_DEV_CLOSED;
 148
 149         std_session_send_df_header(sdi, LOG_PREFIX);
 150
 151         sr_sw_limits_acquisition_start(&devc->limits);
 152
 153         /* Poll every 500ms, or whenever some data comes in. */
 154         serial = sdi->conn;
 155         serial_source_add(sdi->session, serial, G_IO_IN, 500,
 156                       tondaj_sl_814_receive_data, (void *)sdi);
 157
 158         return SR_OK;
 159 }
 160
 161 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 162 {
 163         return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
 164                         sdi->conn, LOG_PREFIX);
 165 }
 166
 167 SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info = {
 168         .name = "tondaj-sl-814",
 169         .longname = "Tondaj SL-814",
 170         .api_version = 1,
 171         .init = std_init,
 172         .cleanup = std_cleanup,
 173         .scan = scan,
 174         .dev_list = std_dev_list,
 175         .dev_clear = NULL,
 176         .config_get = NULL,
 177         .config_set = config_set,
 178         .config_list = config_list,
 179         .dev_open = std_serial_dev_open,
 180         .dev_close = std_serial_dev_close,
 181         .dev_acquisition_start = dev_acquisition_start,
 182         .dev_acquisition_stop = dev_acquisition_stop,
 183         .context = NULL,
 184 };