- NULL,
- &brymen_bm25x_driver_info, receive_data_BRYMEN_BM25X,
- },
-};
-
-static int dev_clear(int dmm)
-{
- return std_dev_clear(dmms[dmm].di, NULL);
-}
-
-static int init(struct sr_context *sr_ctx, int dmm)
-{
- return std_init(sr_ctx, dmms[dmm].di, LOG_PREFIX);
-}
-
-static GSList *sdmm_scan(const char *conn, const char *serialcomm, int dmm)
-{
- struct sr_dev_inst *sdi;
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_serial_dev_inst *serial;
- GSList *devices;
- int dropped, ret;
- size_t len;
- uint8_t buf[128];
-
- serial = sr_serial_dev_inst_new(conn, serialcomm);
-
- if (serial_open(serial, SERIAL_RDWR) != SR_OK)
- return NULL;
-
- sr_info("Probing serial port %s.", conn);
-
- drvc = dmms[dmm].di->priv;
- devices = NULL;
- serial_flush(serial);
-
- /* Request a packet if the DMM requires this. */
- if (dmms[dmm].packet_request) {
- if ((ret = dmms[dmm].packet_request(serial)) < 0) {
- sr_err("Failed to request packet: %d.", ret);
- return FALSE;
- }
- }
-
- /*
- * There's no way to get an ID from the multimeter. It just sends data
- * periodically (or upon request), so the best we can do is check if
- * the packets match the expected format.
- */
-
- /* Let's get a bit of data and see if we can find a packet. */
- len = sizeof(buf);
- ret = serial_stream_detect(serial, buf, &len, dmms[dmm].packet_size,
- dmms[dmm].packet_valid, 3000,
- dmms[dmm].baudrate);
- if (ret != SR_OK)
- goto scan_cleanup;
-
- /*
- * If we dropped more than two packets worth of data, something is
- * wrong. We shouldn't quit however, since the dropped bytes might be
- * just zeroes at the beginning of the stream. Those can occur as a
- * combination of the nonstandard cable that ships with some devices
- * and the serial port or USB to serial adapter.
- */
- dropped = len - dmms[dmm].packet_size;
- if (dropped > 2 * dmms[dmm].packet_size)
- sr_warn("Had to drop too much data.");
-
- sr_info("Found device on port %s.", conn);
-
- sdi = g_malloc0(sizeof(struct sr_dev_inst));
- sdi->status = SR_ST_INACTIVE;
- sdi->vendor = g_strdup(dmms[dmm].vendor);
- sdi->model = g_strdup(dmms[dmm].device);
- devc = g_malloc0(sizeof(struct dev_context));
- sdi->inst_type = SR_INST_SERIAL;
- sdi->conn = serial;
- sdi->priv = devc;
- sdi->driver = dmms[dmm].di;
- sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
- drvc->instances = g_slist_append(drvc->instances, sdi);
- devices = g_slist_append(devices, sdi);
-
-scan_cleanup:
- serial_close(serial);
-
- return devices;
-}
-
-static GSList *scan(GSList *options, int dmm)
-{
- struct sr_config *src;
- GSList *l, *devices;
- const char *conn, *serialcomm;
-
- conn = serialcomm = NULL;
- for (l = options; l; l = l->next) {
- src = l->data;
- switch (src->key) {
- case SR_CONF_CONN:
- conn = g_variant_get_string(src->data, NULL);
- break;
- case SR_CONF_SERIALCOMM:
- serialcomm = g_variant_get_string(src->data, NULL);
- break;
- }
- }
- if (!conn)
- return NULL;
-
- if (serialcomm) {
- /* Use the provided comm specs. */
- devices = sdmm_scan(conn, serialcomm, dmm);
- } else {
- /* Try the default. */
- devices = sdmm_scan(conn, dmms[dmm].conn, dmm);
- }
-
- return devices;
-}
-
-static GSList *dev_list(int dmm)
-{
- return ((struct drv_context *)(dmms[dmm].di->priv))->instances;
-}
-
-static int cleanup(int dmm)
-{
- return dev_clear(dmm);
-}
-
-static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
-
- (void)cg;
-
- 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;
- }
-
- switch (key) {
- case SR_CONF_LIMIT_SAMPLES:
- devc->limit_samples = g_variant_get_uint64(data);
- sr_dbg("Setting sample limit to %" PRIu64 ".",
- devc->limit_samples);
- break;
- case SR_CONF_LIMIT_MSEC:
- devc->limit_msec = g_variant_get_uint64(data);
- sr_dbg("Setting time limit to %" PRIu64 "ms.",
- devc->limit_msec);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- (void)sdi;
- (void)cg;
-
- switch (key) {
- case SR_CONF_SCAN_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
- break;
- case SR_CONF_DEVICE_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
- break;
- default:
- return SR_ERR_NA;
- }
-
- return SR_OK;
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data, int dmm)
-{
- struct dev_context *devc;
- struct sr_serial_dev_inst *serial;
-
- 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;
- }
-
- devc->cb_data = cb_data;
-
- /*
- * Reset the number of samples to take. If we've already collected our
- * quota, but we start a new session, and don't reset this, we'll just
- * quit without acquiring any new samples.
- */
- devc->num_samples = 0;
- devc->starttime = g_get_monotonic_time();
-
- /* Send header packet to the session bus. */
- std_session_send_df_header(cb_data, LOG_PREFIX);
-
- /* Poll every 50ms, or whenever some data comes in. */
- serial = sdi->conn;
- serial_source_add(sdi->session, serial, G_IO_IN, 50,
- dmms[dmm].receive_data, (void *)sdi);
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
- sdi->conn, LOG_PREFIX);
-}
-
-/* Driver-specific API function wrappers */
-#define HW_INIT(X) \
-static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
-#define HW_CLEANUP(X) \
-static int cleanup_##X(void) { return cleanup(X); }
-#define HW_SCAN(X) \
-static GSList *scan_##X(GSList *options) { return scan(options, X); }
-#define HW_DEV_LIST(X) \
-static GSList *dev_list_##X(void) { return dev_list(X); }
-#define HW_DEV_CLEAR(X) \
-static int dev_clear_##X(void) { return dev_clear(X); }
-#define HW_DEV_ACQUISITION_START(X) \
-static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
-void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
-
-/* Driver structs and API function wrappers */
-#define DRV(ID, ID_UPPER, NAME, LONGNAME) \
-HW_INIT(ID_UPPER) \
-HW_CLEANUP(ID_UPPER) \
-HW_SCAN(ID_UPPER) \
-HW_DEV_LIST(ID_UPPER) \
-HW_DEV_CLEAR(ID_UPPER) \
-HW_DEV_ACQUISITION_START(ID_UPPER) \
-SR_PRIV struct sr_dev_driver ID##_driver_info = { \
- .name = NAME, \
- .longname = LONGNAME, \
- .api_version = 1, \
- .init = init_##ID_UPPER, \
- .cleanup = cleanup_##ID_UPPER, \
- .scan = scan_##ID_UPPER, \
- .dev_list = dev_list_##ID_UPPER, \
- .dev_clear = dev_clear_##ID_UPPER, \
- .config_get = NULL, \
- .config_set = config_set, \
- .config_list = config_list, \
- .dev_open = std_serial_dev_open, \
- .dev_close = std_serial_dev_close, \
- .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
- .dev_acquisition_stop = dev_acquisition_stop, \
- .priv = NULL, \