Function generic_save_channel

src/mem.c:354–518

* stores current VFO state into chan by emulating rig_get_channel */

 * stores current VFO state into chan by emulating rig_get_channel
 */
static int generic_save_channel(RIG *rig, channel_t *chan)
{
    int i;
    int chan_num;
    vfo_t vfo;
    setting_t setting;
    const channel_cap_t *mem_cap = NULL;
    value_t vdummy = {0};

    chan_num = chan->channel_num;
    vfo = chan->vfo;
    memset(chan, 0, sizeof(channel_t));
    chan->channel_num = chan_num;
    chan->vfo = vfo;

    if (vfo == RIG_VFO_MEM)
    {
        const chan_t *chan_cap;
        chan_cap = rig_lookup_mem_caps(rig, chan_num);

        if (chan_cap)
        {
            mem_cap = &chan_cap->mem_caps;
        }
    }

    /* If vfo!=RIG_VFO_MEM or incomplete backend, try all properties */
    if (mem_cap == NULL || rig_mem_caps_empty(mem_cap))
    {
        mem_cap = &mem_cap_all;
    }

    if (mem_cap->freq)
    {
        int retval = rig_get_freq(rig, RIG_VFO_CURR, &chan->freq);

        /* empty channel ? */
        if (retval == -RIG_ENAVAIL || chan->freq == RIG_FREQ_NONE)
        {
            return -RIG_ENAVAIL;
        }
    }

    if (mem_cap->vfo)
    {
        rig_get_vfo(rig, &chan->vfo);
    }

    if (mem_cap->mode || mem_cap->width)
    {
        rig_get_mode(rig, RIG_VFO_CURR, &chan->mode, &chan->width);
    }

    chan->split = RIG_SPLIT_OFF;

    if (mem_cap->split)
    {
        rig_get_split_vfo(rig, RIG_VFO_CURR, &chan->split, &chan->tx_vfo);