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 <fcntl.h>
  22 #include <glib.h>
  23 #include "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 };
  39
  40 SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
  41 static struct sr_dev_driver *di = &tondaj_sl_814_driver_info;
  42
  43 static int init(struct sr_context *sr_ctx)
  44 {
  45         return std_init(sr_ctx, di, LOG_PREFIX);
  46 }
  47
  48 static GSList *scan(GSList *options)
  49 {
  50         struct drv_context *drvc;
  51         struct dev_context *devc;
  52         struct sr_dev_inst *sdi;
  53         struct sr_config *src;
  54         GSList *devices, *l;
  55         const char *conn, *serialcomm;
  56         struct sr_serial_dev_inst *serial;
  57
  58         drvc = di->priv;
  59         drvc->instances = NULL;
  60
  61         devices = NULL;
  62
  63         conn = serialcomm = NULL;
  64         for (l = options; l; l = l->next) {
  65                 if (!(src = l->data)) {
  66                         sr_err("Invalid option data, skipping.");
  67                         continue;
  68                 }
  69                 switch (src->key) {
  70                 case SR_CONF_CONN:
  71                         conn = g_variant_get_string(src->data, NULL);
  72                         break;
  73                 case SR_CONF_SERIALCOMM:
  74                         serialcomm = g_variant_get_string(src->data, NULL);
  75                         break;
  76                 default:
  77                         sr_err("Unknown option %d, skipping.", src->key);
  78                         break;
  79                 }
  80         }
  81         if (!conn)
  82                 return NULL;
  83         if (!serialcomm)
  84                 serialcomm = SERIALCOMM;
  85
  86         sdi = g_malloc0(sizeof(struct sr_dev_inst));
  87         sdi->status = SR_ST_INACTIVE;
  88         sdi->vendor = g_strdup("Tondaj");
  89         sdi->model = g_strdup("SL-814");
  90         devc = g_malloc0(sizeof(struct dev_context));
  91
  92         serial = sr_serial_dev_inst_new(conn, serialcomm);
  93
  94         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
  95                 return NULL;
  96
  97         sdi->inst_type = SR_INST_SERIAL;
  98         sdi->conn = serial;
  99
 100         sdi->priv = devc;
 101         sdi->driver = di;
 102         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 103         drvc->instances = g_slist_append(drvc->instances, sdi);
 104         devices = g_slist_append(devices, sdi);
 105
 106         return devices;
 107 }
 108
 109 static GSList *dev_list(void)
 110 {
 111         return ((struct drv_context *)(di->priv))->instances;
 112 }
 113
 114 static int cleanup(void)
 115 {
 116         return std_dev_clear(di, NULL);
 117 }
 118
 119 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 120                 const struct sr_channel_group *cg)
 121 {
 122         struct dev_context *devc;
 123
 124         (void)cg;
 125
 126         if (sdi->status != SR_ST_ACTIVE)
 127                 return SR_ERR_DEV_CLOSED;
 128
 129         devc = sdi->priv;
 130
 131         switch (key) {
 132         case SR_CONF_LIMIT_SAMPLES:
 133                 devc->limit_samples = g_variant_get_uint64(data);
 134                 sr_dbg("Setting sample limit to %" PRIu64 ".",
 135                        devc->limit_samples);
 136                 break;
 137         default:
 138                 return SR_ERR_NA;
 139         }
 140
 141         return SR_OK;
 142 }
 143
 144 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 145                 const struct sr_channel_group *cg)
 146 {
 147         (void)sdi;
 148         (void)cg;
 149
 150         switch (key) {
 151         case SR_CONF_SCAN_OPTIONS:
 152                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 153                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 154                 break;
 155         case SR_CONF_DEVICE_OPTIONS:
 156                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 157                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 158                 break;
 159         default:
 160                 return SR_ERR_NA;
 161         }
 162
 163         return SR_OK;
 164 }
 165
 166 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 167                                     void *cb_data)
 168 {
 169         struct dev_context *devc;
 170         struct sr_serial_dev_inst *serial;
 171
 172         if (sdi->status != SR_ST_ACTIVE)
 173                 return SR_ERR_DEV_CLOSED;
 174
 175         devc = sdi->priv;
 176         devc->cb_data = cb_data;
 177
 178         /* Send header packet to the session bus. */
 179         std_session_send_df_header(cb_data, LOG_PREFIX);
 180
 181         /* Poll every 500ms, or whenever some data comes in. */
 182         serial = sdi->conn;
 183         serial_source_add(sdi->session, serial, G_IO_IN, 500,
 184                       tondaj_sl_814_receive_data, (void *)sdi);
 185
 186         return SR_OK;
 187 }
 188
 189 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 190 {
 191         return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
 192                         sdi->conn, LOG_PREFIX);
 193 }
 194
 195 SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info = {
 196         .name = "tondaj-sl-814",
 197         .longname = "Tondaj SL-814",
 198         .api_version = 1,
 199         .init = init,
 200         .cleanup = cleanup,
 201         .scan = scan,
 202         .dev_list = dev_list,
 203         .dev_clear = NULL,
 204         .config_get = NULL,
 205         .config_set = config_set,
 206         .config_list = config_list,
 207         .dev_open = std_serial_dev_open,
 208         .dev_close = std_serial_dev_close,
 209         .dev_acquisition_start = dev_acquisition_start,
 210         .dev_acquisition_stop = dev_acquisition_stop,
 211         .priv = NULL,
 212 };