Example #1
0
uint32_t nrf_drv_ppi_channel_include_in_group(nrf_ppi_channel_t       channel,
                                              nrf_ppi_channel_group_t group)
{
    uint32_t err_code;

#if (NRF_PPI_RESTRICTED > 0)
    uint32_t ch_mask;
#endif

    if (!is_app_group(group))
    {
        err_code = NRF_ERROR_INVALID_PARAM;
    }
    else if (!is_allocated_group(group))
    {
        err_code = NRF_ERROR_INVALID_STATE;
    }
    else if (!is_app_channel(channel))
    {
        err_code = NRF_ERROR_INVALID_PARAM;
    }
    else
    {
#if (NRF_PPI_RESTRICTED > 0)

        CRITICAL_REGION_ENTER();
        err_code = sd_ppi_group_get((uint8_t) group, &ch_mask);
        if (err_code != NRF_SUCCESS)
        {
            err_code = NRF_ERROR_INVALID_PARAM;
        }
        else
        {
            ch_mask |= channel_to_mask(channel);
            err_code = sd_ppi_group_assign((uint8_t) group, ch_mask);
            if (err_code != NRF_SUCCESS)
            {
                err_code = NRF_ERROR_INVALID_PARAM;
            }
        }
        CRITICAL_REGION_EXIT();
#else

        CRITICAL_REGION_ENTER();
        nrf_ppi_channel_include_in_group(channel, group);
        CRITICAL_REGION_EXIT();
        err_code = NRF_SUCCESS;

#endif
    }

    return err_code;
}
Example #2
0
uint32_t nrf_drv_ppi_channels_remove_from_group(uint32_t channel_mask,
                                                nrf_ppi_channel_group_t group)
{
    uint32_t err_code;

    if (!is_app_group(group))
    {
        err_code = NRF_ERROR_INVALID_PARAM;
    }
    else if (!is_allocated_group(group))
    {
        err_code = NRF_ERROR_INVALID_STATE;
    }
    else if (!are_app_channels(channel_mask))
    {
        err_code = NRF_ERROR_INVALID_PARAM;
    }
    else
    {
#if (NRF_PPI_RESTRICTED > 0)
        uint32_t channels_in_group = 0;

        CRITICAL_REGION_ENTER();
        err_code = sd_ppi_group_get((uint8_t) group, &channels_in_group);

        if (err_code != NRF_SUCCESS)
        {
            err_code = NRF_ERROR_INVALID_PARAM;
        }
        else
        {
            channels_in_group &= ~channel_mask;
            err_code = sd_ppi_group_assign((uint8_t) group, channels_in_group);

            if (err_code != NRF_SUCCESS)
            {
                err_code = NRF_ERROR_INVALID_PARAM;
            }
        }
        CRITICAL_REGION_EXIT();

#else
        CRITICAL_REGION_ENTER();
        nrf_ppi_channels_remove_from_group(channel_mask, group);
        CRITICAL_REGION_EXIT();
        err_code = NRF_SUCCESS;
#endif

    }
    return err_code;
}