From aea4f6046e9a07d5f169de9fcc31bca2b667ea45 Mon Sep 17 00:00:00 2001 From: hathach Date: Thu, 12 Mar 2026 12:16:57 +0700 Subject: refactor(vendor/cdc): add CFG_TUD_CDC_RX_NEED_ZLP and CFG_TUD_VENDOR_RX_NEED_ZLP --- src/class/cdc/cdc_device.c | 2 +- src/class/cdc/cdc_device.h | 7 +++++-- 2 files changed, 6 insertions(+), 3 deletions(-) (limited to 'src/class/cdc') diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c index 3f207462e..c7547c92b 100644 --- a/src/class/cdc/cdc_device.c +++ b/src/class/cdc/cdc_device.c @@ -356,7 +356,7 @@ uint16_t cdcd_open(uint8_t rhport, const tusb_desc_interface_t* itf_desc, uint16 } else { tu_edpt_stream_t *stream_rx = &p_cdc->rx_stream; tu_edpt_stream_open(stream_rx, rhport, desc_ep, - _cdcd_cfg.rx_need_zlp ? CFG_TUD_CDC_RX_EPSIZE : tu_edpt_packet_size(desc_ep)); + CFG_TUD_CDC_RX_NEED_ZLP ? CFG_TUD_CDC_RX_EPSIZE : tu_edpt_packet_size(desc_ep)); if (!_cdcd_cfg.rx_persistent) { tu_edpt_stream_clear(stream_rx); } diff --git a/src/class/cdc/cdc_device.h b/src/class/cdc/cdc_device.h index 3baf84d00..0348bd2ec 100644 --- a/src/class/cdc/cdc_device.h +++ b/src/class/cdc/cdc_device.h @@ -65,13 +65,17 @@ #endif #endif +// Enable multi-packet RX transfer with ZLP termination for better throughput. Requires host support for ZLP. +#ifndef CFG_TUD_CDC_RX_NEED_ZLP + #define CFG_TUD_CDC_RX_NEED_ZLP 0 +#endif + #ifndef CFG_TUD_CDC_CONFIGURE_DEFAULT #define CFG_TUD_CDC_CONFIGURE_DEFAULT() \ { \ .rx_persistent = false, \ .tx_persistent = false, \ .tx_overwritabe_if_not_connected = true, \ - .rx_need_zlp = false \ } #endif @@ -82,7 +86,6 @@ typedef struct { bool rx_persistent; // keep rx fifo data even with bus reset or disconnect bool tx_persistent; // keep tx fifo data even with reset or disconnect bool tx_overwritabe_if_not_connected; // if not connected, tx fifo can be overwritten - bool rx_need_zlp; // requires host support ZLP, allow transfer more than one packet in a single transfer, better throughput. } tud_cdc_configure_t; // Configure CDC driver behavior -- cgit v1.3.1