/**
* @brief Class specific endpoint transfer handler.
*
* @param[in] p_inst Generic class instance.
* @param[in] p_setup_ev Setup event.
*
* @return Standard error code.
*/
static ret_code_t cdc_acm_endpoint_ev(app_usbd_class_inst_t const * p_inst,
app_usbd_complex_evt_t const * p_event)
{
if (comm_ep_in_addr_get(p_inst) == p_event->drv_evt.data.eptransfer.ep)
{
NRF_LOG_INFO("EPIN_COMM: notify");
return NRF_SUCCESS;
}
if (NRF_USBD_EPIN_CHECK(p_event->drv_evt.data.eptransfer.ep))
{
switch (p_event->drv_evt.data.eptransfer.status)
{
case NRF_USBD_EP_OK:
NRF_LOG_INFO("EPIN_DATA: %02x done", p_event->drv_evt.data.eptransfer.ep);
user_event_handler(p_inst, APP_USBD_CDC_ACM_USER_EVT_TX_DONE);
return NRF_SUCCESS;
case NRF_USBD_EP_ABORTED:
return NRF_SUCCESS;
default:
return NRF_ERROR_INTERNAL;
}
}
if (NRF_USBD_EPOUT_CHECK(p_event->drv_evt.data.eptransfer.ep))
{
switch (p_event->drv_evt.data.eptransfer.status)
{
case NRF_USBD_EP_OK:
NRF_LOG_INFO("EPOUT_DATA: %02x done", p_event->drv_evt.data.eptransfer.ep);
user_event_handler(p_inst, APP_USBD_CDC_ACM_USER_EVT_RX_DONE);
return NRF_SUCCESS;
case NRF_USBD_EP_WAITING:
case NRF_USBD_EP_ABORTED:
return NRF_SUCCESS;
default:
return NRF_ERROR_INTERNAL;
}
}
return NRF_ERROR_NOT_SUPPORTED;
}
static ret_code_t audio_req_out_data_cb(nrf_drv_usbd_ep_status_t status, void * p_context)
{
if (status == NRF_USBD_EP_OK)
{
app_usbd_audio_t const * p_audio = p_context;
user_event_handler((app_usbd_class_inst_t const *)p_audio,
APP_USBD_AUDIO_USER_EVT_CLASS_REQ);
}
return NRF_SUCCESS;
}
/**
* @brief Internal SETUP class IN request handler.
*
* @param[in] p_inst Generic class instance.
* @param[in] p_setup_ev Setup event.
*
* @return Standard error code.
* @retval NRF_SUCCESS Request handled correctly.
* @retval NRF_ERROR_NOT_SUPPORTED Request is not supported.
*/
static ret_code_t setup_req_class_in(
app_usbd_class_inst_t const * p_inst,
app_usbd_setup_evt_t const * p_setup_ev)
{
switch (p_setup_ev->setup.bRequest)
{
case APP_USBD_AUDIO_REQ_GET_CUR:
case APP_USBD_AUDIO_REQ_GET_MIN:
case APP_USBD_AUDIO_REQ_GET_MAX:
case APP_USBD_AUDIO_REQ_SET_RES:
case APP_USBD_AUDIO_REQ_GET_MEM:
{
app_usbd_audio_t const * p_audio = audio_get(p_inst);
app_usbd_audio_ctx_t * p_audio_ctx = audio_ctx_get(p_audio);
p_audio_ctx->request.req_type = (app_usbd_audio_req_type_t)p_setup_ev->setup.bRequest;
p_audio_ctx->request.control = p_setup_ev->setup.wValue.hb;
p_audio_ctx->request.channel = p_setup_ev->setup.wValue.lb;
p_audio_ctx->request.interface = p_setup_ev->setup.wIndex.hb;
p_audio_ctx->request.entity = p_setup_ev->setup.wIndex.lb;
p_audio_ctx->request.length = p_setup_ev->setup.wLength.w;
p_audio_ctx->request.req_target = APP_USBD_AUDIO_CLASS_REQ_IN;
app_usbd_setup_reqrec_t rec = app_usbd_setup_req_rec(p_setup_ev->setup.bmRequestType);
if (rec == APP_USBD_SETUP_REQREC_ENDPOINT)
{
p_audio_ctx->request.req_target = APP_USBD_AUDIO_EP_REQ_IN;
}
user_event_handler((app_usbd_class_inst_t const *)p_audio,
APP_USBD_AUDIO_USER_EVT_CLASS_REQ);
return app_usbd_core_setup_rsp(&p_setup_ev->setup,
p_audio_ctx->request.payload,
p_audio_ctx->request.length);
}
default:
break;
}
return NRF_ERROR_NOT_SUPPORTED;
}
/**
* @brief Internal SETUP class OUT request handler.
*
* @param[in] p_inst Generic class instance.
* @param[in] p_setup_ev Setup event.
*
* @return Standard error code.
* @retval NRF_SUCCESS if request handled correctly.
* @retval NRF_ERROR_NOT_SUPPORTED if request is not supported.
*/
static ret_code_t setup_req_class_out(app_usbd_class_inst_t const * p_inst,
app_usbd_setup_evt_t const * p_setup_ev)
{
app_usbd_nrf_dfu_trigger_t const * p_dfu = nrf_dfu_trigger_get(p_inst);
app_usbd_nrf_dfu_trigger_ctx_t * p_dfu_ctx = nrf_dfu_trigger_ctx_get(p_dfu);
switch (p_setup_ev->setup.bRequest)
{
case APP_USBD_NRF_DFU_TRIGGER_REQ_DETACH:
{
NRF_LOG_DEBUG("Entering DFU Mode");
p_dfu_ctx->state = APP_USBD_NRF_DFU_TRIGGER_STATE_DETACH;
user_event_handler(p_inst, APP_USBD_NRF_DFU_TRIGGER_USER_EVT_DETACH);
return NRF_SUCCESS;
}
default:
break;
}
return NRF_ERROR_NOT_SUPPORTED;
}
/**
* @brief Class specific request data stage setup.
*
* @param[in] p_inst Generic class instance.
* @param[in] p_setup_ev Setup event.
*
* @return Standard error code.
*/
static ret_code_t cdc_acm_req_out_datastage(app_usbd_class_inst_t const * p_inst,
app_usbd_setup_evt_t const * p_setup_ev)
{
app_usbd_cdc_acm_t const * p_cdc_acm = cdc_acm_get(p_inst);
app_usbd_cdc_acm_ctx_t * p_cdc_acm_ctx = cdc_acm_ctx_get(p_cdc_acm);
p_cdc_acm_ctx->request.type = p_setup_ev->setup.bmRequest;
p_cdc_acm_ctx->request.len = p_setup_ev->setup.wLength.w;
/*Request setup data*/
NRF_DRV_USBD_TRANSFER_OUT(transfer,
&p_cdc_acm_ctx->request.payload,
p_cdc_acm_ctx->request.len);
ret_code_t ret;
CRITICAL_REGION_ENTER();
ret = app_usbd_ep_transfer(NRF_DRV_USBD_EPOUT0, &transfer);
if (ret == NRF_SUCCESS)
{
const app_usbd_core_setup_data_handler_desc_t desc = {
.handler = cdc_acm_req_out_data_cb,
.p_context = (void*)p_cdc_acm
};
ret = app_usbd_core_setup_data_handler_set(NRF_DRV_USBD_EPOUT0, &desc);
}
CRITICAL_REGION_EXIT();
return ret;
}
/**
* @brief Internal SETUP class OUT request handler.
*
* @param[in] p_inst Generic class instance.
* @param[in] p_setup_ev Setup event.
*
* @return Standard error code.
*/
static ret_code_t setup_req_class_out(app_usbd_class_inst_t const * p_inst,
app_usbd_setup_evt_t const * p_setup_ev)
{
app_usbd_cdc_acm_t const * p_cdc_acm = cdc_acm_get(p_inst);
app_usbd_cdc_acm_ctx_t * p_cdc_acm_ctx = cdc_acm_ctx_get(p_cdc_acm);
switch (p_setup_ev->setup.bmRequest)
{
case APP_USBD_CDC_REQ_SET_LINE_CODING:
{
if (p_setup_ev->setup.wLength.w != sizeof(app_usbd_cdc_line_coding_t))
{
return NRF_ERROR_NOT_SUPPORTED;
}
return cdc_acm_req_out_datastage(p_inst, p_setup_ev);
}
case APP_USBD_CDC_REQ_SET_CONTROL_LINE_STATE:
{
if (p_setup_ev->setup.wLength.w != 0)
{
return NRF_ERROR_NOT_SUPPORTED;
}
NRF_LOG_INFO("REQ_SET_CONTROL_LINE_STATE: 0x%x", p_setup_ev->setup.wValue.w);
bool old_dtr = (p_cdc_acm_ctx->line_state & APP_USBD_CDC_ACM_LINE_STATE_DTR) ?
true : false;
p_cdc_acm_ctx->line_state = p_setup_ev->setup.wValue.w;
bool new_dtr = (p_cdc_acm_ctx->line_state & APP_USBD_CDC_ACM_LINE_STATE_DTR) ?
true : false;
if (old_dtr == new_dtr)
{
return NRF_SUCCESS;
}
const app_usbd_cdc_acm_user_event_t ev = new_dtr ?
APP_USBD_CDC_ACM_USER_EVT_PORT_OPEN : APP_USBD_CDC_ACM_USER_EVT_PORT_CLOSE;
user_event_handler(p_inst, ev);
if (!new_dtr)
{
/*Abort DATA endpoints on port close */
nrf_drv_usbd_ep_t ep;
ep = data_ep_in_addr_get(p_inst);
nrf_drv_usbd_ep_abort(ep);
ep = data_ep_out_addr_get(p_inst);
nrf_drv_usbd_ep_abort(ep);
}
return NRF_SUCCESS;
}
default:
break;
}
return NRF_ERROR_NOT_SUPPORTED;
}
/**
* @brief Endpoint OUT event handler.
*
* @param[in] p_inst Generic class instance.
*
* @return Standard error code.
* @retval NRF_SUCCESS Request handled correctly.
* @retval NRF_ERROR_NOT_SUPPORTED Request is not supported.
*/
static ret_code_t endpoint_out_event_handler(app_usbd_class_inst_t const * p_inst)
{
user_event_handler(p_inst, APP_USBD_AUDIO_USER_EVT_RX_DONE);
return NRF_SUCCESS;
}
