Introduce standard cleanup helper

[libsigrok.git] / src / hardware / scpi-pps / api.c

diff --git a/src/hardware/scpi-pps/api.c b/src/hardware/scpi-pps/api.c
index fbc71ceef217e1b4b920f0406fbcdc597c1a943d..e2afad3bead0f9ce016e8910ebf4b27404c78314 100644 (file)
--- a/src/hardware/scpi-pps/api.c
+++ b/src/hardware/scpi-pps/api.c
@@ -91,7 +91,6 @@ static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
        }
 
        sdi = g_malloc0(sizeof(struct sr_dev_inst));
-       sdi->status = SR_ST_INACTIVE;
        sdi->vendor = g_strdup(vendor);
        sdi->model = g_strdup(hw_info->model);
        sdi->version = g_strdup(hw_info->firmware_version);
@@ -168,7 +167,6 @@ static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
        hw_info = NULL;
 
        scpi_cmd(sdi, devc->device->commands, SCPI_CMD_LOCAL);
-       sr_scpi_close(scpi);
 
        return sdi;
 }
@@ -183,11 +181,6 @@ static GSList *dev_list(const struct sr_dev_driver *di)
        return ((struct drv_context *)(di->context))->instances;
 }
 
-static int dev_clear(const struct sr_dev_driver *di)
-{
-       return std_dev_clear(di, NULL);
-}
-
 static int dev_open(struct sr_dev_inst *sdi)
 {
        struct dev_context *devc;
@@ -205,7 +198,6 @@ static int dev_open(struct sr_dev_inst *sdi)
 
        devc = sdi->priv;
        scpi_cmd(sdi, devc->device->commands, SCPI_CMD_REMOTE);
-       devc = sdi->priv;
        devc->beeper_was_set = FALSE;
        if (scpi_cmd_resp(sdi, devc->device->commands, &beeper,
                        G_VARIANT_TYPE_BOOLEAN, SCPI_CMD_BEEPER) == SR_OK) {
@@ -250,7 +242,7 @@ static void clear_helper(void *priv)
        g_free(devc);
 }
 
-static int cleanup(const struct sr_dev_driver *di)
+static int dev_clear(const struct sr_dev_driver *di)
 {
        return std_dev_clear(di, clear_helper);
 }
@@ -262,7 +254,7 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
        const GVariantType *gvtype;
        unsigned int i;
        int cmd, ret;
-       char *s;
+       const char *s;
 
        if (!sdi)
                return SR_ERR_ARG;
@@ -365,19 +357,20 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
                 * return VOLT/CURR. We always return a GVariant string in
                 * the Rigol notation.
                 */
-               if ((ret = sr_scpi_get_string(sdi->conn, NULL, &s)) != SR_OK)
-                       return ret;
-               if (!strcmp(s, "CV") || !strcmp(s, "VOLT")) {
+               s = g_variant_get_string(*data, NULL);
+               if (!strcmp(s, "VOLT")) {
+                       g_variant_unref(*data);
                        *data = g_variant_new_string("CV");
-               } else if (!strcmp(s, "CC") || !strcmp(s, "CURR")) {
+               } else if (!strcmp(s, "CURR")) {
+                       g_variant_unref(*data);
                        *data = g_variant_new_string("CC");
-               } else if (!strcmp(s, "UR")) {
-                       *data = g_variant_new_string("UR");
-               } else {
+               }
+
+               s = g_variant_get_string(*data, NULL);
+               if (strcmp(s, "CV") && strcmp(s, "CC") && strcmp(s, "UR")) {
                        sr_dbg("Unknown response to SCPI_CMD_GET_OUTPUT_REGULATION: %s", s);
                        ret = SR_ERR_DATA;
                }
-               g_free(s);
        }
 
        return ret;
@@ -401,7 +394,7 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
                select_channel(sdi, cg->channels->data);
 
        devc = sdi->priv;
-       ret = SR_OK;
+
        switch (key) {
        case SR_CONF_ENABLED:
                if (g_variant_get_boolean(data))
@@ -577,7 +570,7 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *
        return ret;
 }
 
-static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 {
        struct dev_context *devc;
        struct sr_scpi_dev_inst *scpi;
@@ -590,7 +583,6 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 
        devc = sdi->priv;
        scpi = sdi->conn;
-       devc->cb_data = cb_data;
 
        if ((ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10,
                        scpi_pps_receive_data, (void *)sdi)) != SR_OK)
@@ -617,14 +609,11 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
        return SR_OK;
 }
 
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 {
-       struct sr_datafeed_packet packet;
        struct sr_scpi_dev_inst *scpi;
        float f;
 
-       (void)cb_data;
-
        if (sdi->status != SR_ST_ACTIVE)
                return SR_ERR_DEV_CLOSED;
 
@@ -638,8 +627,7 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
        sr_scpi_get_float(scpi, NULL, &f);
        sr_scpi_source_remove(sdi->session, scpi);
 
-       packet.type = SR_DF_END;
-       sr_session_send(sdi, &packet);
+       std_session_send_df_end(sdi, LOG_PREFIX);
 
        return SR_OK;
 }
@@ -649,7 +637,7 @@ SR_PRIV struct sr_dev_driver scpi_pps_driver_info = {
        .longname = "SCPI PPS",
        .api_version = 1,
        .init = init,
-       .cleanup = cleanup,
+       .cleanup = std_cleanup,
        .scan = scan,
        .dev_list = dev_list,
        .dev_clear = dev_clear,