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add ecm device write and read api

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This commit is contained in:
sakumisu
2024-01-14 18:49:05 +08:00
parent c4a65146e8
commit b773cecd2e
3 changed files with 37 additions and 10 deletions
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33
class/cdc/usbd_cdc_ecm.c
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@@ -157,6 +157,30 @@ void cdc_ecm_int_in(uint8_t ep, uint32_t nbytes)
}
}
uint8_t *usbd_cdc_ecm_get_tx_buffer(void)
{
return g_cdc_ecm_tx_buffer;
}
int usbd_cdc_ecm_start_write(uint32_t length)
{
if (g_cdc_ecm_tx_data_length > 0) {
return -USB_ERR_BUSY;
}
g_cdc_ecm_tx_data_length = length;
USB_LOG_DBG("txlen:%d\r\n", g_cdc_ecm_tx_data_length);
return usbd_ep_start_write(cdc_ecm_ep_data[CDC_ECM_IN_EP_IDX].ep_addr, g_cdc_ecm_tx_buffer, g_cdc_ecm_tx_data_length);
}
void usbd_cdc_ecm_start_read_next(void)
{
g_cdc_ecm_rx_data_length = 0;
g_cdc_ecm_rx_data_buffer = NULL;
usbd_ep_start_read(cdc_ecm_ep_data[CDC_ECM_OUT_EP_IDX].ep_addr, g_cdc_ecm_rx_buffer, CDC_ECM_MAX_PACKET_SIZE);
}
#ifdef CONFIG_USBDEV_CDC_ECM_USING_LWIP
struct pbuf *usbd_cdc_ecm_eth_rx(void)
{
@@ -167,16 +191,14 @@ struct pbuf *usbd_cdc_ecm_eth_rx(void)
}
p = pbuf_alloc(PBUF_RAW, g_cdc_ecm_rx_data_length, PBUF_POOL);
if (p == NULL) {
usbd_cdc_ecm_start_read_next();
return NULL;
}
memcpy(p->payload, (uint8_t *)g_cdc_ecm_rx_buffer, g_cdc_ecm_rx_data_length);
p->len = g_cdc_ecm_rx_data_length;
USB_LOG_DBG("rxlen:%d\r\n", g_cdc_ecm_rx_data_length);
g_cdc_ecm_rx_data_length = 0;
g_cdc_ecm_rx_data_buffer = NULL;
usbd_ep_start_read(cdc_ecm_ep_data[CDC_ECM_OUT_EP_IDX].ep_addr, g_cdc_ecm_rx_buffer, CDC_ECM_MAX_PACKET_SIZE);
usbd_cdc_ecm_start_read_next();
return p;
}
@@ -201,8 +223,7 @@ int usbd_cdc_ecm_eth_tx(struct pbuf *p)
g_cdc_ecm_tx_data_length = p->tot_len;
USB_LOG_DBG("txlen:%d\r\n", g_cdc_ecm_tx_data_length);
return usbd_ep_start_write(cdc_ecm_ep_data[CDC_ECM_IN_EP_IDX].ep_addr, g_cdc_ecm_tx_buffer, g_cdc_ecm_tx_data_length);
return usbd_cdc_ecm_start_write(g_cdc_ecm_tx_data_length);
}
#endif