Example #1
0
/**
 * @brief Triggers IN endpoint transfer.
 *
 * @param[in] p_kbd HID keyboard instance.
 *
 * @return Standard error code.
 */
static inline ret_code_t hid_kbd_transfer_set(app_usbd_hid_kbd_t const * p_kbd)
{
    app_usbd_class_inst_t const * p_inst = (app_usbd_class_inst_t const *)p_kbd;
    app_usbd_hid_kbd_ctx_t *      p_kbd_ctx = hid_kbd_ctx_get(p_kbd);

    nrf_drv_usbd_ep_t ep_addr = app_usbd_hid_epin_addr_get(p_inst);

    app_usbd_hid_state_flag_clr(&p_kbd_ctx->hid_ctx, APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);

    if (!hid_kbd_transfer_next(p_kbd))
    {
        /* Transfer buffer hasn't changed since last transfer. No need to setup
         * next transfer.
         * */
        return NRF_SUCCESS;
    }

    app_usbd_hid_report_buffer_t const * p_rep_buffer = hid_kbd_rep_buffer_get(p_kbd);
    NRF_DRV_USBD_TRANSFER_IN(transfer, p_rep_buffer->p_buff, p_rep_buffer->size);

    ret_code_t ret;
    CRITICAL_REGION_ENTER();
    ret = app_usbd_core_ep_transfer(ep_addr, &transfer);
    if (ret == NRF_SUCCESS)
    {
        app_usbd_hid_state_flag_set(&p_kbd_ctx->hid_ctx, APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
    }
    CRITICAL_REGION_EXIT();

    return ret;
}
Example #2
0
ret_code_t app_usbd_audio_class_tx_start(
    app_usbd_class_inst_t const * p_inst,
    const void                  * p_buff,
    size_t                        size)
{
    nrf_drv_usbd_ep_t ep_addr;

    ep_addr = ep_iso_addr_get(p_inst);
    ASSERT(NRF_USBD_EPISO_CHECK(ep_addr));

    NRF_DRV_USBD_TRANSFER_IN(transfer, p_buff, size);
    return app_usbd_ep_transfer(ep_addr, &transfer);
}
Example #3
0
ret_code_t app_usbd_cdc_acm_write(app_usbd_cdc_acm_t const * p_cdc_acm,
                                  const void *               p_buf,
                                  size_t                     length)
{
    app_usbd_class_inst_t const * p_inst = app_usbd_cdc_acm_class_inst_get(p_cdc_acm);
    app_usbd_cdc_acm_ctx_t * p_cdc_acm_ctx = cdc_acm_ctx_get(p_cdc_acm);

    bool dtr_state = (p_cdc_acm_ctx->line_state & APP_USBD_CDC_ACM_LINE_STATE_DTR) ?
                      true : false;
    if (!dtr_state)
    {
        /*Port is not opened*/
        return NRF_ERROR_INVALID_STATE;
    }

    nrf_drv_usbd_ep_t ep = data_ep_in_addr_get(p_inst);
    NRF_DRV_USBD_TRANSFER_IN(transfer, p_buf, length);
    return app_usbd_ep_transfer(ep, &transfer);
}