cem-dt-885x: Support for changing frequency weighting

[libsigrok.git] / hardware / cem-dt-885x / api.c

diff --git a/hardware/cem-dt-885x/api.c b/hardware/cem-dt-885x/api.c
index e19ecc4f20e8e0d121411a3c0c040713224db253..22e6c7a5c03c0d2611cc8e3d942b85ac8d0b7fa1 100644 (file)
--- a/hardware/cem-dt-885x/api.c
+++ b/hardware/cem-dt-885x/api.c
@@ -17,6 +17,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <string.h>
 #include "protocol.h"
 
 #define SERIALCOMM "9600/8n1"
@@ -32,8 +33,13 @@ static const int32_t hwcaps[] = {
        SR_CONF_LIMIT_SAMPLES,
        SR_CONF_CONTINUOUS,
        SR_CONF_DATALOG,
+       SR_CONF_SPL_WEIGHT_FREQ,
 };
 
+static const char *weight_freq[] = {
+       "A",
+       "C",
+};
 
 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
 static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
@@ -159,6 +165,7 @@ static int cleanup(void)
 static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
 {
        struct dev_context *devc;
+       int tmp;
 
        if (!sdi)
                return SR_ERR_ARG;
@@ -171,6 +178,15 @@ static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
        case SR_CONF_DATALOG:
                *data = g_variant_new_boolean(cem_dt_885x_recording_get(sdi));
                break;
+       case SR_CONF_SPL_WEIGHT_FREQ:
+               tmp = cem_dt_885x_weight_freq_get(sdi);
+               if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
+                       *data = g_variant_new_string("A");
+               else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
+                       *data = g_variant_new_string("C");
+               else
+                       return SR_ERR;
+               break;
        default:
                return SR_ERR_NA;
        }
@@ -183,6 +199,7 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
        struct dev_context *devc;
        uint64_t tmp_u64;
        int ret;
+       const char *tmp_str;
 
        if (sdi->status != SR_ST_ACTIVE)
                return SR_ERR_DEV_CLOSED;
@@ -208,6 +225,17 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
                        ret = cem_dt_885x_recording_set(sdi, FALSE);
                }
                break;
+       case SR_CONF_SPL_WEIGHT_FREQ:
+               tmp_str = g_variant_get_string(data, NULL);
+               if (!strcmp(tmp_str, "A"))
+                       ret = cem_dt_885x_weight_freq_set(sdi,
+                                       SR_MQFLAG_SPL_FREQ_WEIGHT_A);
+               else if (!strcmp(tmp_str, "C"))
+                       ret = cem_dt_885x_weight_freq_set(sdi,
+                                       SR_MQFLAG_SPL_FREQ_WEIGHT_C);
+               else
+                       return SR_ERR_ARG;
+               break;
        default:
                ret = SR_ERR_NA;
        }
@@ -231,6 +259,9 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
                *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
                                hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
                break;
+       case SR_CONF_SPL_WEIGHT_FREQ:
+               *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
+               break;
        default:
                return SR_ERR_NA;
        }