drivers: Factor out std_*_idx*().

[libsigrok.git] / src / hardware / atten-pps3xxx / api.c

diff --git a/src/hardware/atten-pps3xxx/api.c b/src/hardware/atten-pps3xxx/api.c
index 0a16ca5f2c5b245d7c51455666abb1ddd9e6654f..b87d230df0684cf690e6467aa0e0d026b090e50e 100644 (file)
--- a/src/hardware/atten-pps3xxx/api.c
+++ b/src/hardware/atten-pps3xxx/api.c
@@ -182,8 +182,8 @@ static GSList *scan_3203(struct sr_dev_driver *di, GSList *options)
        return scan(di, options, PPS_3203T_3S);
 }
 
-static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
-               const struct sr_channel_group *cg)
+static int config_get(uint32_t key, GVariant **data,
+       const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 {
        struct dev_context *devc;
        struct sr_channel *ch;
@@ -234,29 +234,13 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
        return SR_OK;
 }
 
-static int find_str(const char *str, const char **strings, int array_size)
-{
-       int idx, i;
-
-       idx = -1;
-       for (i = 0; i < array_size; i++) {
-               if (!strcmp(str, strings[i])) {
-                       idx = i;
-                       break;
-               }
-       }
-
-       return idx;
-}
-
-static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
-               const struct sr_channel_group *cg)
+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;
        struct sr_channel *ch;
        gdouble dval;
        int channel, ret, ival;
-       const char *sval;
        gboolean bval;
 
        ret = SR_OK;
@@ -264,12 +248,8 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
        if (!cg) {
                switch (key) {
                case SR_CONF_CHANNEL_CONFIG:
-                       sval = g_variant_get_string(data, NULL);
-                       if ((ival = find_str(sval, channel_modes,
-                                                       ARRAY_SIZE(channel_modes))) == -1) {
-                               ret = SR_ERR_ARG;
-                               break;
-                       }
+                       if ((ival = std_str_idx(data, ARRAY_AND_SIZE(channel_modes))) < 0)
+                               return SR_ERR_ARG;
                        if (devc->model->channel_modes && (1 << ival) == 0) {
                                /* Not supported on this model. */
                                ret = SR_ERR_ARG;
@@ -327,14 +307,12 @@ static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sd
        return ret;
 }
 
-static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
-               const struct sr_channel_group *cg)
+static int config_list(uint32_t key, GVariant **data,
+       const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 {
        struct dev_context *devc;
        struct sr_channel *ch;
-       GVariant *gvar;
-       GVariantBuilder gvb;
-       int channel, i;
+       int channel;
 
        devc = (sdi) ? sdi->priv : NULL;
 
@@ -349,7 +327,7 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *
                                *data = g_variant_new_strv(channel_modes, 1);
                        } else {
                                /* The other models support all modes. */
-                               *data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
+                               *data = g_variant_new_strv(ARRAY_AND_SIZE(channel_modes));
                        }
                        break;
                default:
@@ -362,26 +340,13 @@ static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *
 
                switch (key) {
                case SR_CONF_DEVICE_OPTIONS:
-                       *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
-                                       devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
+                       *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
                        break;
                case SR_CONF_VOLTAGE_TARGET:
-                       g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
-                       /* Min, max, step. */
-                       for (i = 0; i < 3; i++) {
-                               gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
-                               g_variant_builder_add_value(&gvb, gvar);
-                       }
-                       *data = g_variant_builder_end(&gvb);
+                       *data = std_gvar_min_max_step_array(devc->model->channels[channel].voltage);
                        break;
                case SR_CONF_CURRENT_LIMIT:
-                       g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
-                       /* Min, max, step. */
-                       for (i = 0; i < 3; i++) {
-                               gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
-                               g_variant_builder_add_value(&gvb, gvar);
-                       }
-                       *data = g_variant_builder_end(&gvb);
+                       *data = std_gvar_min_max_step_array(devc->model->channels[channel].current);
                        break;
                default:
                        return SR_ERR_NA;