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