+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "protocol.h"
-
-#define SERIALCOMM "9600/8n1"
-/* 23ms is the longest interval between tokens. */
-#define MAX_SCAN_TIME 25 * 1000
-
-static const int32_t hwopts[] = {
- SR_CONF_CONN,
-};
-
-static const int32_t hwcaps[] = {
- SR_CONF_SOUNDLEVELMETER,
- SR_CONF_LIMIT_SAMPLES,
- SR_CONF_CONTINUOUS,
-};
-
-
-SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
-static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
-
-
-static int init(struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static GSList *scan(GSList *options)
-{
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_config *src;
- struct sr_serial_dev_inst *serial;
- struct sr_dev_inst *sdi;
- struct sr_probe *probe;
- GSList *l, *devices;
- gint64 start;
- const char *conn;
- unsigned char c;
-
- conn = NULL;
- for (l = options; l; l = l->next) {
- src = l->data;
- if (src->key == SR_CONF_CONN)
- conn = g_variant_get_string(src->data, NULL);
- }
- if (!conn)
- return NULL;
-
- if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
- return NULL;
-
- if (serial_open(serial, SERIAL_RDONLY | SERIAL_NONBLOCK) != SR_OK)
- return NULL;
-
- devices = NULL;
- drvc = di->priv;
- start = g_get_monotonic_time();
- while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
- if (serial_read(serial, &c, 1) == 1 && c == 0xa5) {
- /* Found one. */
- if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "CEM",
- "DT-885x", NULL)))
- return NULL;
-
- if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
- sr_dbg("Device context malloc failed.");
- return NULL;
- }
-
- if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
- return NULL;
-
- sdi->inst_type = SR_INST_SERIAL;
- sdi->priv = devc;
- sdi->driver = di;
- if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
- return NULL;
- sdi->probes = g_slist_append(sdi->probes, probe);
- drvc->instances = g_slist_append(drvc->instances, sdi);
- devices = g_slist_append(devices, sdi);
- break;
- }
- /* It takes about 1ms for a byte to come in. */
- g_usleep(1000);
- }
-
- serial_close(serial);
-
- return devices;
-}
-
-static GSList *dev_list(void)
-{
- struct drv_context *drvc;
-
- drvc = di->priv;
-
- return drvc->instances;
-}
-
-static int dev_clear(void)
-{
- return std_dev_clear(di, NULL);
-}
-
-static int dev_open(struct sr_dev_inst *sdi)
-{
- struct sr_serial_dev_inst *serial;
-
- serial = sdi->conn;
- if (serial_open(serial, SERIAL_RDWR) != SR_OK)
- return SR_ERR;
-
- sdi->status = SR_ST_ACTIVE;
-
- return SR_OK;
-}
-
-static int dev_close(struct sr_dev_inst *sdi)
-{
- struct sr_serial_dev_inst *serial;
-
- serial = sdi->conn;
- if (serial && serial->fd != -1) {
- serial_close(serial);
- sdi->status = SR_ST_INACTIVE;
- }
-
- return SR_OK;
-}
-
-static int cleanup(void)
-{
- return dev_clear();
-}
-
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- if (!sdi)
- return SR_ERR_ARG;
-
- devc = sdi->priv;
- switch (key) {
- case SR_CONF_LIMIT_SAMPLES:
- *data = g_variant_new_uint64(devc->limit_samples);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- uint64_t tmp_u64;
- int ret;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- ret = SR_OK;
- switch (key) {
- case SR_CONF_LIMIT_SAMPLES:
- tmp_u64 = g_variant_get_uint64(data);
- devc->limit_samples = tmp_u64;
- ret = SR_OK;
- break;
- default:
- ret = SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
-{
- int ret;
-
- (void)sdi;
-
- ret = SR_OK;
- switch (key) {
- case SR_CONF_SCAN_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
- break;
- case SR_CONF_DEVICE_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
- break;
- default:
- return SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
- (void)sdi;
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- /* TODO: stop acquisition. */
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
- .name = "cem-dt-885x",
- .longname = "CEM DT-885x",
- .api_version = 1,
- .init = init,
- .cleanup = cleanup,
- .scan = scan,
- .dev_list = dev_list,
- .dev_clear = dev_clear,
- .config_get = config_get,
- .config_set = config_set,
- .config_list = config_list,
- .dev_open = dev_open,
- .dev_close = dev_close,
- .dev_acquisition_start = dev_acquisition_start,
- .dev_acquisition_stop = dev_acquisition_stop,
- .priv = NULL,
-};
projects / libsigrok.git / blobdiff