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Code Issues Releases Activity

LP-602 Re-enable rx_status checking in usb_csc to optionally reenable rx after reset

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This partially reverts 1203fa9e66
LP-495 F4 USB CDC: remove internal rx_active state tracking and use actual endpoint status instead (like F1)
However rx_status is only used in the reinit case, without reintroducing issue LP-495
This commit is contained in:
Eric Price 2018-10-16 15:51:46 +02:00
parent 868d787912
commit 8793aaa387
1 changed files with 13 additions and 2 deletions
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13
flight/pios/stm32f4xx/pios_usb_cdc.c
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@ -93,6 +93,7 @@ struct pios_usb_cdc_dev {
*/
uint8_t tx_packet_buffer[PIOS_USB_BOARD_CDC_DATA_LENGTH - 1] __attribute__((aligned(4)));
volatile bool tx_active;
volatile bool rx_active;
uint8_t ctrl_tx_packet_buffer[PIOS_USB_BOARD_CDC_MGMT_LENGTH] __attribute__((aligned(4)));
@ -191,8 +192,9 @@ int32_t PIOS_USB_CDC_Init(uint32_t *usbcdc_id, const struct pios_usb_cdc_cfg *cf
pios_usb_cdc_id = (uint32_t)usb_cdc_dev;
/* Tx is not active yet */
/* Tx and Rx are not active yet */
usb_cdc_dev->tx_active = false;
usb_cdc_dev->rx_active = false;
/* Clear stats */
usb_cdc_dev->rx_dropped = 0;
@ -279,6 +281,7 @@ static void PIOS_USB_CDC_RxStart(uint32_t usbcdc_id, uint16_t rx_bytes_avail)
PIOS_USBHOOK_EndpointRx(usb_cdc_dev->cfg->data_rx_ep,
usb_cdc_dev->rx_packet_buffer,
sizeof(usb_cdc_dev->rx_packet_buffer));
usb_cdc_dev->rx_active = true;
}
}
@ -608,6 +611,12 @@ static void PIOS_USB_CDC_DATA_IF_Init(uint32_t usb_cdc_id)
(uint32_t)usb_cdc_dev);
usb_cdc_dev->usb_data_if_enabled = true;
usb_cdc_dev->tx_active = false;
/* Check if rx was previously active, if so we need to reactivate */
if (usb_cdc_dev->rx_active) {
PIOS_USBHOOK_EndpointRx(usb_cdc_dev->cfg->data_rx_ep,
usb_cdc_dev->rx_packet_buffer,
sizeof(usb_cdc_dev->rx_packet_buffer));
}
}
static void PIOS_USB_CDC_DATA_IF_DeInit(uint32_t usb_cdc_id)
@ -711,9 +720,11 @@ static bool PIOS_USB_CDC_DATA_EP_OUT_Callback(
usb_cdc_dev->rx_packet_buffer,
sizeof(usb_cdc_dev->rx_packet_buffer));
rc = true;
usb_cdc_dev->rx_active = true;
} else {
/* Not enough room left for a message, apply backpressure */
rc = false;
usb_cdc_dev->rx_active = false;
}
#if defined(PIOS_INCLUDE_FREERTOS)