From 0649b18b2e8b2e76b38f6280796ba48a51882eac Mon Sep 17 00:00:00 2001 From: nminaylov Date: Fri, 24 Apr 2026 22:39:02 +0300 Subject: NCM packet filter support --- src/device/usbd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/device') diff --git a/src/device/usbd.h b/src/device/usbd.h index d3a6dccbb..45beb7c4c 100644 --- a/src/device/usbd.h +++ b/src/device/usbd.h @@ -1040,7 +1040,7 @@ bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_requ /* CDC-NCM Functional Descriptor */\ 13, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_ETHERNET_NETWORKING, _mac_stridx, 0, 0, 0, 0, U16_TO_U8S_LE(_maxsegmentsize), U16_TO_U8S_LE(0), 0, \ /* CDC-NCM Functional Descriptor */\ - 6, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_NCM, U16_TO_U8S_LE(0x0100), 0, \ + 6, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_NCM, U16_TO_U8S_LE(0x0100), 0x01, \ /* Endpoint Notification */\ 7, TUSB_DESC_ENDPOINT, _ep_notif, TUSB_XFER_INTERRUPT, U16_TO_U8S_LE(_ep_notif_size), 50,\ /* CDC Data Interface (default inactive) */\ -- cgit v1.3.1 From 2cdd98104ece869f3a5eda3dd9c2b02f5b4c318d Mon Sep 17 00:00:00 2001 From: nminaylov Date: Mon, 27 Apr 2026 14:40:18 +0300 Subject: NCM caps enum --- src/class/net/ncm_device.c | 3 +-- src/class/net/net_device.h | 10 ++++++++++ src/device/usbd.h | 5 ++++- 3 files changed, 15 insertions(+), 3 deletions(-) (limited to 'src/device') diff --git a/src/class/net/ncm_device.c b/src/class/net/ncm_device.c index a1ad9b205..83e8bffab 100644 --- a/src/class/net/ncm_device.c +++ b/src/class/net/ncm_device.c @@ -999,8 +999,7 @@ bool netd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t case NCM_SET_ETHERNET_PACKET_FILTER: { tud_control_xfer(rhport, request, NULL, 0); - } break; - + } break; // unsupported request default: diff --git a/src/class/net/net_device.h b/src/class/net/net_device.h index 96c03fd61..61ff6b2d6 100644 --- a/src/class/net/net_device.h +++ b/src/class/net/net_device.h @@ -50,6 +50,16 @@ typedef enum NCM_DATA_PROTOCOL_NETWORK_TRANSFER_BLOCK = 0x01 } ncm_data_interface_protocol_code_t; +// Table 5.2 bmNetworkCapabilities bits +typedef enum { + NCM_NETWORK_CAPS_NONE = 0x00, + NCM_NETWORK_CAPS_ETH_FILTER = (1 << 0), + NCM_NETWORK_CAPS_NET_ADDRESS = (1 << 1), + NCM_NETWORK_CAPS_ENCAP_COMMAND = (1 << 2), + NCM_NETWORK_CAPS_MAX_DATAGRAM_SIZE = (1 << 3), + NCM_NETWORK_CAPS_CRC_MODE = (1 << 4), + NCM_NETWORK_CAPS_NTB_INPUT_SIZE = (1 << 5) +} ncm_network_capabilities_t; #ifdef __cplusplus extern "C" { diff --git a/src/device/usbd.h b/src/device/usbd.h index 45beb7c4c..96144350e 100644 --- a/src/device/usbd.h +++ b/src/device/usbd.h @@ -1023,6 +1023,9 @@ bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_requ // CDC-NCM Descriptor Templates //--------------------------------------------------------------------+ +// NCM Capabilities, bitmap of NCM_NETWORK_CAPS_* bits. +#define TUD_CDC_NCM_CAPS (NCM_NETWORK_CAPS_ETH_FILTER) + // Length of template descriptor #define TUD_CDC_NCM_DESC_LEN (8+9+5+5+13+6+7+9+9+7+7) @@ -1040,7 +1043,7 @@ bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_requ /* CDC-NCM Functional Descriptor */\ 13, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_ETHERNET_NETWORKING, _mac_stridx, 0, 0, 0, 0, U16_TO_U8S_LE(_maxsegmentsize), U16_TO_U8S_LE(0), 0, \ /* CDC-NCM Functional Descriptor */\ - 6, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_NCM, U16_TO_U8S_LE(0x0100), 0x01, \ + 6, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_NCM, U16_TO_U8S_LE(0x0100), TUD_CDC_NCM_CAPS, \ /* Endpoint Notification */\ 7, TUSB_DESC_ENDPOINT, _ep_notif, TUSB_XFER_INTERRUPT, U16_TO_U8S_LE(_ep_notif_size), 50,\ /* CDC Data Interface (default inactive) */\ -- cgit v1.3.1 From 2931121b072cd49d4a144359da422980d9bf017a Mon Sep 17 00:00:00 2001 From: Zixun LI Date: Thu, 30 Apr 2026 15:03:09 +0200 Subject: refactor capability Signed-off-by: Zixun LI --- examples/device/net_lwip_webserver/src/usb_descriptors.c | 6 +++--- src/device/usbd.h | 9 +++------ 2 files changed, 6 insertions(+), 9 deletions(-) (limited to 'src/device') diff --git a/examples/device/net_lwip_webserver/src/usb_descriptors.c b/examples/device/net_lwip_webserver/src/usb_descriptors.c index c976cb62b..b194b9c5a 100644 --- a/examples/device/net_lwip_webserver/src/usb_descriptors.c +++ b/examples/device/net_lwip_webserver/src/usb_descriptors.c @@ -162,9 +162,9 @@ static uint8_t const ncm_configuration[] = { TUD_CONFIG_DESCRIPTOR(CONFIG_ID_NCM + 1, ITF_NUM_TOTAL, 0, NCM_CONFIG_TOTAL_LEN, 0, 100), // Interface number, description string index, MAC address string index, EP notification address and size, EP data address (out, in), and size, max segment size. - TUD_CDC_NCM_DESCRIPTOR( - ITF_NUM_CDC, STRID_INTERFACE, STRID_MAC, EPNUM_NET_NOTIF, 64, EPNUM_NET_OUT, EPNUM_NET_IN, - CFG_TUD_NET_ENDPOINT_SIZE, CFG_TUD_NET_MTU), + TUD_CDC_NCM_DESCRIPTOR(ITF_NUM_CDC, STRID_INTERFACE, STRID_MAC, + EPNUM_NET_NOTIF, 64, EPNUM_NET_OUT, EPNUM_NET_IN, CFG_TUD_NET_ENDPOINT_SIZE, + CFG_TUD_NET_MTU, NCM_NETWORK_CAPS_ETH_FILTER), }; #endif diff --git a/src/device/usbd.h b/src/device/usbd.h index 96144350e..a960e2c79 100644 --- a/src/device/usbd.h +++ b/src/device/usbd.h @@ -1023,15 +1023,12 @@ bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_requ // CDC-NCM Descriptor Templates //--------------------------------------------------------------------+ -// NCM Capabilities, bitmap of NCM_NETWORK_CAPS_* bits. -#define TUD_CDC_NCM_CAPS (NCM_NETWORK_CAPS_ETH_FILTER) - // Length of template descriptor #define TUD_CDC_NCM_DESC_LEN (8+9+5+5+13+6+7+9+9+7+7) // CDC-ECM Descriptor Template -// Interface number, description string index, MAC address string index, EP notification address and size, EP data address (out, in), and size, max segment size. -#define TUD_CDC_NCM_DESCRIPTOR(_itfnum, _desc_stridx, _mac_stridx, _ep_notif, _ep_notif_size, _epout, _epin, _epsize, _maxsegmentsize) \ +// Interface number, description string index, MAC address string index, EP notification address and size, EP data address (out, in), and size, max segment size, capability. +#define TUD_CDC_NCM_DESCRIPTOR(_itfnum, _desc_stridx, _mac_stridx, _ep_notif, _ep_notif_size, _epout, _epin, _epsize, _maxsegmentsize, _capability) \ /* Interface Association */\ 8, TUSB_DESC_INTERFACE_ASSOCIATION, _itfnum, 2, TUSB_CLASS_CDC, CDC_COMM_SUBCLASS_NETWORK_CONTROL_MODEL, 0, 0,\ /* CDC Control Interface */\ @@ -1043,7 +1040,7 @@ bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_requ /* CDC-NCM Functional Descriptor */\ 13, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_ETHERNET_NETWORKING, _mac_stridx, 0, 0, 0, 0, U16_TO_U8S_LE(_maxsegmentsize), U16_TO_U8S_LE(0), 0, \ /* CDC-NCM Functional Descriptor */\ - 6, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_NCM, U16_TO_U8S_LE(0x0100), TUD_CDC_NCM_CAPS, \ + 6, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_NCM, U16_TO_U8S_LE(0x0100), _capability, \ /* Endpoint Notification */\ 7, TUSB_DESC_ENDPOINT, _ep_notif, TUSB_XFER_INTERRUPT, U16_TO_U8S_LE(_ep_notif_size), 50,\ /* CDC Data Interface (default inactive) */\ -- cgit v1.3.1 From 8db6084acac03acc1b98721f78d22587968ed5b2 Mon Sep 17 00:00:00 2001 From: Zixun LI Date: Thu, 30 Apr 2026 15:56:23 +0200 Subject: ncm: implement GetNtbInputSize request Signed-off-by: HiFiPHile --- .../net_lwip_webserver/src/usb_descriptors.c | 2 +- src/class/net/ncm.h | 14 ++++ src/class/net/ncm_device.c | 87 +++++++++++----------- src/device/usbd.h | 8 +- 4 files changed, 62 insertions(+), 49 deletions(-) (limited to 'src/device') diff --git a/examples/device/net_lwip_webserver/src/usb_descriptors.c b/examples/device/net_lwip_webserver/src/usb_descriptors.c index b194b9c5a..0c6c11611 100644 --- a/examples/device/net_lwip_webserver/src/usb_descriptors.c +++ b/examples/device/net_lwip_webserver/src/usb_descriptors.c @@ -164,7 +164,7 @@ static uint8_t const ncm_configuration[] = { // Interface number, description string index, MAC address string index, EP notification address and size, EP data address (out, in), and size, max segment size. TUD_CDC_NCM_DESCRIPTOR(ITF_NUM_CDC, STRID_INTERFACE, STRID_MAC, EPNUM_NET_NOTIF, 64, EPNUM_NET_OUT, EPNUM_NET_IN, CFG_TUD_NET_ENDPOINT_SIZE, - CFG_TUD_NET_MTU, NCM_NETWORK_CAPS_ETH_FILTER), + CFG_TUD_NET_MTU, (uint8_t)((uint8_t)NCM_NETWORK_CAPS_ETH_FILTER | (uint8_t)NCM_NETWORK_CAPS_NTB_INPUT_SIZE)), }; #endif diff --git a/src/class/net/ncm.h b/src/class/net/ncm.h index 8989fe0b4..27ff89b72 100644 --- a/src/class/net/ncm.h +++ b/src/class/net/ncm.h @@ -161,4 +161,18 @@ typedef struct { uint32_t uplink; } ncm_notify_t; +typedef struct TU_ATTR_PACKED { + uint8_t bFunctionLength; + uint8_t bDescriptorType; + uint8_t bDescriptorSubType; + uint16_t bcdNcmVersion; + uint8_t bmCapabilities; +} tusb_desc_cdc_ncm_func_t; + +typedef struct TU_ATTR_PACKED { + uint32_t dwNtbInMaxSize; + uint16_t wNtbInMaxDatagrams; + uint16_t wReserved; +} ncm_ntb_input_size_t; + #endif diff --git a/src/class/net/ncm_device.c b/src/class/net/ncm_device.c index 7240c50aa..e16b0523f 100644 --- a/src/class/net/ncm_device.c +++ b/src/class/net/ncm_device.c @@ -119,14 +119,10 @@ typedef struct { bool link_is_up; // current link state // host-configured transmit limits - uint32_t xmit_max_ntb_size; // maximum NTB size device may send + uint8_t bm_capabilities; + uint16_t xmit_max_ntb_size; // maximum NTB size device may send uint16_t xmit_max_datagrams; // maximum datagrams per NTB device may send - uint8_t ntb_input_size_len; // last SET_NTB_INPUT_SIZE wLength - struct { - uint32_t dwNtbInMaxSize; - uint16_t wNtbInMaxDatagrams; - uint16_t wReserved; - } ntb_input_size; + ncm_ntb_input_size_t ntb_input_size; // misc bool tud_network_recv_renew_active; // tud_network_recv_renew() is active (avoid recursive invocations) @@ -425,14 +421,10 @@ static bool xmit_requested_datagram_fits_into_current_ntb(uint16_t datagram_size if (ncm_interface.xmit_glue_ntb == NULL) { return false; } - uint16_t max_datagrams = ncm_interface.xmit_max_datagrams; - if (max_datagrams == 0) { - max_datagrams = CFG_TUD_NCM_IN_MAX_DATAGRAMS_PER_NTB; - } - if (ncm_interface.xmit_glue_ntb_datagram_ndx >= max_datagrams) { + if (ncm_interface.xmit_glue_ntb_datagram_ndx >= ncm_interface.xmit_max_datagrams) { return false; } - if (ncm_interface.xmit_glue_ntb->nth.wBlockLength + datagram_size + XMIT_ALIGN_OFFSET(datagram_size) > ncm_interface.xmit_max_ntb_size) { + if (ncm_interface.xmit_glue_ntb->nth.wBlockLength + datagram_size + (uint32_t)XMIT_ALIGN_OFFSET(datagram_size) > (uint32_t)ncm_interface.xmit_max_ntb_size) { return false; } return true; @@ -902,10 +894,14 @@ uint16_t netd_open(uint8_t rhport, tusb_desc_interface_t const *itf_desc, uint16 ncm_interface.itf_num = itf_desc->bInterfaceNumber;// management interface - // skip the two first entries and the following TUSB_DESC_CS_INTERFACE entries uint16_t drv_len = sizeof(tusb_desc_interface_t); uint8_t const *p_desc = tu_desc_next(itf_desc); while (tu_desc_type(p_desc) == TUSB_DESC_CS_INTERFACE && drv_len <= max_len) { + if (tu_desc_subtype(p_desc) == CDC_FUNC_DESC_NCM) { + TU_ASSERT(tu_desc_len(p_desc) >= sizeof(tusb_desc_cdc_ncm_func_t), 0); + tusb_desc_cdc_ncm_func_t const *ncm_func = (tusb_desc_cdc_ncm_func_t const *) p_desc; + ncm_interface.bm_capabilities = ncm_func->bmCapabilities; + } drv_len += tu_desc_len(p_desc); p_desc = tu_desc_next(p_desc); } @@ -1028,49 +1024,52 @@ bool netd_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_request_t if (stage != CONTROL_STAGE_SETUP) { return true; } + + TU_VERIFY(ncm_interface.bm_capabilities & NCM_NETWORK_CAPS_ETH_FILTER, false); tud_network_set_packet_filter_cb(request->wValue); tud_control_xfer(rhport, request, NULL, 0); } break; - case NCM_SET_NTB_INPUT_SIZE: { - if (stage == CONTROL_STAGE_SETUP) { - if (request->wLength != 4 && request->wLength != 8) { - return false; - } + case NCM_GET_NTB_INPUT_SIZE: { + if (stage != CONTROL_STAGE_SETUP) { + return true; + } - ncm_interface.ntb_input_size_len = (uint8_t) request->wLength; - memset(&ncm_interface.ntb_input_size, 0, sizeof(ncm_interface.ntb_input_size)); + TU_VERIFY(request->wLength >=4, false); - // wLength == 8 -> the NTB Input Size Structure - // wLength == 4 -> dwNtbInMaxSize field of the NTB Input Size Structure. - if (request->wLength == 4) { - tud_control_xfer(rhport, request, &ncm_interface.ntb_input_size.dwNtbInMaxSize, 4); - } else { - tud_control_xfer(rhport, request, &ncm_interface.ntb_input_size, 8); - } - } else if (stage == CONTROL_STAGE_ACK) { - uint32_t requested_size = ncm_interface.ntb_input_size.dwNtbInMaxSize; - uint16_t requested_datagrams = 0; - uint32_t min_ntb_size = 2048u; - uint32_t new_ntb_size = 0; - uint16_t new_datagrams = 0; + uint8_t resp_len = (request->wLength >= 8 && (ncm_interface.bm_capabilities & NCM_NETWORK_CAPS_NTB_INPUT_SIZE)) ? 8 : 4; - if (requested_size < min_ntb_size || requested_size > CFG_TUD_NCM_IN_NTB_MAX_SIZE) { - return false; - } - new_ntb_size = requested_size; + ncm_ntb_input_size_t ntb_input_size = { + .dwNtbInMaxSize = ncm_interface.xmit_max_ntb_size, + .wNtbInMaxDatagrams = ncm_interface.xmit_max_datagrams + }; + tud_control_xfer(rhport, request, &ntb_input_size, resp_len); + } break; - if (ncm_interface.ntb_input_size_len == 8) { - requested_datagrams = ncm_interface.ntb_input_size.wNtbInMaxDatagrams; + case NCM_SET_NTB_INPUT_SIZE: { + if (stage == CONTROL_STAGE_SETUP) { + /* wLength == 8 -> the NTB Input Size Structure (if NCM_NETWORK_CAPS_NTB_INPUT_SIZE is set) + wLength == 4 -> dwNtbInMaxSize field of the NTB Input Size Structure. */ + TU_VERIFY(request->wLength == 4 || request->wLength == 8, false); + if (request->wLength == 8) { + TU_VERIFY(ncm_interface.bm_capabilities & NCM_NETWORK_CAPS_NTB_INPUT_SIZE, false); } - if (requested_datagrams > CFG_TUD_NCM_IN_MAX_DATAGRAMS_PER_NTB) { + tu_memclr(&ncm_interface.ntb_input_size, sizeof(ncm_interface.ntb_input_size)); + tud_control_xfer(rhport, request, &ncm_interface.ntb_input_size, request->wLength); + } else if (stage == CONTROL_STAGE_ACK) { + /* CDC-NCM 1.0 Table 6-4, up to NTB16 size */ + const uint32_t requested_size = ncm_interface.ntb_input_size.dwNtbInMaxSize; + if (requested_size < 2048u || requested_size > 65535u) { return false; } - new_datagrams = requested_datagrams; + ncm_interface.xmit_max_ntb_size = tu_min16(requested_size, CFG_TUD_NCM_IN_NTB_MAX_SIZE); - ncm_interface.xmit_max_ntb_size = new_ntb_size; - ncm_interface.xmit_max_datagrams = new_datagrams; + if (ncm_interface.ntb_input_size.wNtbInMaxDatagrams == 0 || ncm_interface.ntb_input_size.wNtbInMaxDatagrams > CFG_TUD_NCM_IN_MAX_DATAGRAMS_PER_NTB) { + ncm_interface.xmit_max_datagrams = CFG_TUD_NCM_IN_MAX_DATAGRAMS_PER_NTB; + } else { + ncm_interface.xmit_max_datagrams = ncm_interface.ntb_input_size.wNtbInMaxDatagrams; + } } } break; diff --git a/src/device/usbd.h b/src/device/usbd.h index a960e2c79..5a21c7039 100644 --- a/src/device/usbd.h +++ b/src/device/usbd.h @@ -1026,18 +1026,18 @@ bool tud_vendor_control_xfer_cb(uint8_t rhport, uint8_t stage, tusb_control_requ // Length of template descriptor #define TUD_CDC_NCM_DESC_LEN (8+9+5+5+13+6+7+9+9+7+7) -// CDC-ECM Descriptor Template +// CDC-NCM Descriptor Template // Interface number, description string index, MAC address string index, EP notification address and size, EP data address (out, in), and size, max segment size, capability. #define TUD_CDC_NCM_DESCRIPTOR(_itfnum, _desc_stridx, _mac_stridx, _ep_notif, _ep_notif_size, _epout, _epin, _epsize, _maxsegmentsize, _capability) \ /* Interface Association */\ 8, TUSB_DESC_INTERFACE_ASSOCIATION, _itfnum, 2, TUSB_CLASS_CDC, CDC_COMM_SUBCLASS_NETWORK_CONTROL_MODEL, 0, 0,\ /* CDC Control Interface */\ 9, TUSB_DESC_INTERFACE, _itfnum, 0, 1, TUSB_CLASS_CDC, CDC_COMM_SUBCLASS_NETWORK_CONTROL_MODEL, 0, _desc_stridx,\ - /* CDC-NCM Header */\ + /* CDC Header */\ 5, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_HEADER, U16_TO_U8S_LE(0x0110),\ - /* CDC-NCM Union */\ + /* CDC Union */\ 5, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_UNION, _itfnum, (uint8_t)((_itfnum) + 1),\ - /* CDC-NCM Functional Descriptor */\ + /* CDC Ethernet Networking Descriptor */\ 13, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_ETHERNET_NETWORKING, _mac_stridx, 0, 0, 0, 0, U16_TO_U8S_LE(_maxsegmentsize), U16_TO_U8S_LE(0), 0, \ /* CDC-NCM Functional Descriptor */\ 6, TUSB_DESC_CS_INTERFACE, CDC_FUNC_DESC_NCM, U16_TO_U8S_LE(0x0100), _capability, \ -- cgit v1.3.1