static bool udd_ep_interrupt(void) { udd_ep_id_t ep; udd_ep_job_t *ptr_job; // For each endpoint different of control endpoint (0) for (ep = 1; ep <= USB_DEVICE_MAX_EP; ep++) { // Get job corresponding at endpoint ptr_job = &udd_ep_job[ep - 1]; // Check DMA event if (Is_udd_endpoint_dma_interrupt_enabled(ep) && Is_udd_endpoint_dma_interrupt(ep)) { uint32_t nb_remaining; if( udd_endpoint_dma_get_status(ep) & AVR32_USBB_UDDMA1_STATUS_CH_EN_MASK) { return true; // Ignore EOT_STA interrupt } udd_disable_endpoint_dma_interrupt(ep); // Save number of data no transfered nb_remaining = (udd_endpoint_dma_get_status(ep) & AVR32_USBB_UDDMA1_STATUS_CH_BYTE_CNT_MASK) >> AVR32_USBB_UDDMA1_STATUS_CH_BYTE_CNT_OFFSET; if (nb_remaining) { // Transfer no complete (short packet or ZLP) then: // Update number of data transfered ptr_job->nb_trans -= nb_remaining; // Set transfer complete to stop the transfer ptr_job->buf_size = ptr_job->nb_trans; } udd_ep_trans_done(ep); return true; } // Check empty bank interrupt event if (Is_udd_endpoint_interrupt_enabled(ep)) { if (Is_udd_in_send_interrupt_enabled(ep) && Is_udd_in_send(ep)) { udd_disable_in_send_interrupt(ep); // One bank is free then send a ZLP udd_ack_in_send(ep); udd_ack_fifocon(ep); udd_ep_finish_job(ptr_job, false, ep); return true; } if (Is_udd_bank_interrupt_enabled(ep) && (0 == udd_nb_busy_bank(ep))) { // End of background transfer on IN endpoint udd_disable_bank_interrupt(ep); udd_disable_endpoint_interrupt(ep); Assert(ptr_job->stall_requested); // A stall has been requested during background transfer ptr_job->stall_requested = false; udd_disable_endpoint_bank_autoswitch(ep); udd_enable_stall_handshake(ep); udd_reset_data_toggle(ep); return true; } } }
static bool udd_ep_interrupt(void) { udd_ep_id_t ep; udd_ep_job_t *ptr_job; // For each endpoint different of control endpoint (0) for (ep = 1; ep <= USB_DEVICE_MAX_EP; ep++) { // Check DMA event if (Is_udd_endpoint_dma_interrupt_enabled(ep) && Is_udd_endpoint_dma_interrupt(ep)) { uint32_t nb_remaining; udd_disable_endpoint_dma_interrupt(ep); // Save number of data no transfered nb_remaining = (udd_endpoint_dma_get_status(ep) & AVR32_USBB_UDDMA1_STATUS_CH_BYTE_CNT_MASK) >> AVR32_USBB_UDDMA1_STATUS_CH_BYTE_CNT_OFFSET; // Get job corresponding at endpoint ptr_job = &udd_ep_job[ep - 1]; // Update number of data transfered ptr_job->buf_size -= nb_remaining; if (!Is_udd_endpoint_in(ep)) { // Disable autoswitch bank on OUT udd_disable_endpoint_bank_autoswitch(ep); } else { // Wait end of background transfer on IN endpoint before disabled autoswitch bank udd_enable_endpoint_interrupt(ep); udd_enable_bank_interrupt(ep); } // Call callback to signal end of transfer udd_ep_finish_job(&udd_ep_job[ep - 1], false); return true; } // Check empty bank interrupt event if (Is_udd_endpoint_interrupt_enabled(ep) && (0 == udd_nb_busy_bank(ep))) { // End of background transfer on IN endpoint udd_disable_bank_interrupt(ep); udd_disable_endpoint_interrupt(ep); // If no new transfer running then disable autoswitch bank if (!udd_ep_job[ep - 1].busy) { udd_disable_endpoint_bank_autoswitch(ep); } // If a stall has been requested during backgound transfer then execute it if (udd_ep_job[ep - 1].stall_requested) { udd_ep_job[ep - 1].stall_requested = false; udd_enable_stall_handshake(ep); udd_reset_data_toggle(ep); } return true; } }
static bool udd_ep_interrupt(void) { udd_ep_id_t ep; // For each endpoint different of control endpoint (0) for (ep = 1; ep <= USB_DEVICE_MAX_EP; ep++) { if (!Is_udd_endpoint_interrupt_enabled(ep) || !Is_udd_endpoint_interrupt(ep)) { continue; } udd_ep_finish_job(ep, false); return true; } return false; }
static bool udd_ep_interrupt(void) { udd_ep_id_t ep, ep_addr; // For each endpoint different of control endpoint (0) for (ep = 1; ep <= USB_DEVICE_MAX_EP; ep++) { if (!Is_udd_endpoint_interrupt_enabled(ep) || !Is_udd_endpoint_interrupt(ep)) { continue; } ep_addr = Is_udd_endpoint_in(ep) ? (ep | USB_EP_DIR_IN) : ep; udd_ep_trans_done(ep_addr); return true; } return false; }
static bool udd_ep_interrupt(void) { udd_ep_id_t ep; udd_ep_job_t *ptr_job; // For each endpoint different of control endpoint (0) for (ep = 1; ep <= USB_DEVICE_MAX_EP; ep++) { // Check RXRDY and TXEMPTY event for none DMA endpoints if (!Is_udd_endpoint_interrupt_enabled(ep)) { continue; } // Get job corresponding at endpoint ptr_job = &udd_ep_job[ep - 1]; // RXOUT: Full packet received if (Is_udd_any_bank_received(ep)) { udd_ep_out_received(ep); return true; } // TXIN: packet sent if (Is_udd_in_sent(ep)) { ptr_job->bank--; // Stall when all banks free if (ptr_job->b_stall_requested) { if (ptr_job->bank) { // Send remaining udd_set_transmit_ready(ep); udd_ack_in_sent(ep); } else { // Ack last packet udd_ack_in_sent(ep); // Enable stall udd_enable_stall_handshake(ep); // Halt executed ptr_job->b_stall_requested = false; } return true; } // Finish Job when buffer end if (ptr_job->b_buf_end) { ptr_job->b_buf_end = false; ptr_job->buf_size = ptr_job->buf_cnt; // buf_size is passed to callback as XFR count udd_ep_finish_job(ptr_job, UDD_EP_TRANSFER_OK, ep); } if (ptr_job->buf_cnt >= ptr_job->buf_size && !ptr_job->b_shortpacket && ptr_job->bank == 0) { // All transfer done, including ZLP irqflags_t flags = cpu_irq_save(); udd_disable_endpoint_interrupt(ep); cpu_irq_restore(flags); // Ack last packet udd_ack_in_sent(ep); return true; } else if (udd_get_endpoint_bank_max_nbr(ep) > 1 && ptr_job->bank > 0) { // Already banks buffered, transmit while loading udd_set_transmit_ready(ep); udd_ack_in_sent(ep); udd_ep_in_sent(ep, false); } else if (udd_get_endpoint_bank_max_nbr(ep) > 1) { // Still bank free, load and transmit if (!udd_ep_in_sent(ep, true)) { ptr_job->b_buf_end = false; ptr_job->buf_size = ptr_job->buf_cnt; // buf_size is passed to callback as XFR count udd_ep_finish_job(ptr_job, UDD_EP_TRANSFER_OK, ep); } udd_ack_in_sent(ep); udd_ep_in_sent(ep, false); } else { // Single bank transfer, ack when ready udd_ep_in_sent(ep, true); udd_ack_in_sent(ep); } return true; } // Stall sent/CRC error if (Is_udd_stall(ep)) { udd_ack_stall(ep); if (udd_get_endpoint_type(ep) == UDP_CSR_EPTYPE_ISO_OUT || udd_get_endpoint_type(ep) == UDP_CSR_EPTYPE_ISO_IN) { } return true; } } return false; }