std_init(): Drop check if pass in driver is non-NULL

[libsigrok.git] / src / hardware / link-mso19 / api.c

diff --git a/src/hardware/link-mso19/api.c b/src/hardware/link-mso19/api.c
index 8b4ccc7fd43c6bea97a2a079b01388642c5f7209..ff511730cc0db9e0215aacfdbb7e0f1cc69b3cbe 100644 (file)
--- a/src/hardware/link-mso19/api.c
+++ b/src/hardware/link-mso19/api.c
@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include "protocol.h"
 
 static const uint32_t devopts[] = {
@@ -54,15 +55,12 @@ SR_PRIV struct sr_dev_driver link_mso19_driver_info;
 /* TODO: Use sr_dev_inst to store connection handle & use std_dev_clear(). */
 static int dev_clear(const struct sr_dev_driver *di)
 {
+       struct drv_context *drvc = di->context;
        GSList *l;
        struct sr_dev_inst *sdi;
-       struct drv_context *drvc;
        struct dev_context *devc;
        int ret = SR_OK;
 
-       if (!(drvc = di->context))
-               return SR_OK;
-
        /* Properly close and free all devices. */
        for (l = drvc->instances; l; l = l->next) {
                if (!(sdi = l->data)) {
@@ -89,7 +87,7 @@ static int dev_clear(const struct sr_dev_driver *di)
 
 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
 {
-       return std_init(sr_ctx, di, LOG_PREFIX);
+       return std_init(di, sr_ctx);
 }
 
 static GSList *scan(struct sr_dev_driver *di, GSList *options)
@@ -227,11 +225,6 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
        return devices;
 }
 
-static GSList *dev_list(const struct sr_dev_driver *di)
-{
-       return ((struct drv_context *)(di->context))->instances;
-}
-
 static int dev_open(struct sr_dev_inst *sdi)
 {
        int ret;
@@ -263,11 +256,6 @@ static int dev_open(struct sr_dev_inst *sdi)
        return SR_OK;
 }
 
-static int cleanup(const struct sr_dev_driver *di)
-{
-       return dev_clear();
-}
-
 static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
                const struct sr_channel_group *cg)
 {
@@ -390,7 +378,7 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
        return SR_OK;
 }
 
-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;
        int ret = SR_ERR;
@@ -445,23 +433,20 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
        /* Reset trigger state. */
        devc->trigger_state = 0x00;
 
-       /* Send header packet to the session bus. */
-       std_session_send_df_header(cb_data, LOG_PREFIX);
+       std_session_send_df_header(sdi, LOG_PREFIX);
 
        /* Our first channel is analog, the other 8 are of type 'logic'. */
        /* TODO. */
 
        serial_source_add(sdi->session, devc->serial, G_IO_IN, -1,
-                       mso_receive_data, cb_data);
+                       mso_receive_data, sdi);
 
        return SR_OK;
 }
 
 /* This stops acquisition on ALL devices, ignoring dev_index. */
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 {
-       (void)cb_data;
-
        stop_acquisition(sdi);
 
        return SR_OK;
@@ -472,9 +457,9 @@ SR_PRIV struct sr_dev_driver link_mso19_driver_info = {
        .longname = "Link Instruments MSO-19",
        .api_version = 1,
        .init = init,
-       .cleanup = cleanup,
+       .cleanup = std_cleanup,
        .scan = scan,
-       .dev_list = dev_list,
+       .dev_list = std_dev_list,
        .dev_clear = dev_clear,
        .config_get = config_get,
        .config_set = config_set,