static ret_code_t cdc_acm_serial_state_notify(app_usbd_cdc_acm_t const * p_cdc_acm)
{
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);
nrf_drv_usbd_ep_t ep = comm_ep_in_addr_get(p_inst);
NRF_DRV_USBD_TRANSFER_OUT(transfer,
&p_cdc_acm_ctx->request.payload,
sizeof(app_usbd_cdc_acm_notify_t));
return app_usbd_ep_transfer(ep, &transfer);
}
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);
}
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);
}
static ret_code_t audio_req_out(
app_usbd_class_inst_t const * p_inst,
app_usbd_setup_evt_t const * p_setup_ev)
{
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_OUT;
if (app_usbd_setup_req_rec(p_setup_ev->setup.bmRequestType) == APP_USBD_SETUP_REQREC_ENDPOINT)
{
p_audio_ctx->request.req_target = APP_USBD_AUDIO_EP_REQ_OUT;
}
/*Request setup data*/
NRF_DRV_USBD_TRANSFER_OUT(transfer, p_audio_ctx->request.payload, p_audio_ctx->request.length);
ret_code_t ret;
CRITICAL_REGION_ENTER();
ret = app_usbd_ep_transfer(NRF_DRV_USBD_EPOUT0, &transfer);
if (ret == NRF_SUCCESS)
{
app_usbd_core_setup_data_handler_desc_t desc = {
.handler = audio_req_out_data_cb,
.p_context = (void *)p_audio
};
ret = app_usbd_core_setup_data_handler_set(NRF_DRV_USBD_EPOUT0, &desc);
}
CRITICAL_REGION_EXIT();
return ret;
}
/**
* @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;
}
