usbnet: remove CDC-EEM

1 files changed, 3 insertions, 66 deletions

diff --git a/src/class/net/net_device.c b/src/class/net/net_device.c
index 19bc5d2d6..777d0da98 100644
--- a/src/class/net/net_device.c
+++ b/src/class/net/net_device.c
@@ -27,7 +27,7 @@
 
 #include "tusb_option.h"
 
-#if ( TUSB_OPT_DEVICE_ENABLED && (CFG_TUD_NET != OPT_NET_NONE) )
+#if ( TUSB_OPT_DEVICE_ENABLED && CFG_TUD_NET )
 
 #include "net_device.h"
 #include "device/usbd_pvt.h"
@@ -41,21 +41,14 @@ void rndis_class_set_handler(uint8_t *data, int size); /* found in ./misc/networ
 typedef struct
 {
   uint8_t itf_num;
-#if CFG_TUD_NET == OPT_NET_RNDIS_ECM
   uint8_t ep_notif;
   bool ecm_mode;
-#endif
   uint8_t ep_in;
   uint8_t ep_out;
 } netd_interface_t;
 
-#if CFG_TUD_NET == OPT_NET_EEM
-  #define CFG_TUD_NET_PACKET_PREFIX_LEN 2
-  #define CFG_TUD_NET_PACKET_SUFFIX_LEN 4
-#else
-  #define CFG_TUD_NET_PACKET_PREFIX_LEN sizeof(rndis_data_packet_t)
-  #define CFG_TUD_NET_PACKET_SUFFIX_LEN 0
-#endif
+#define CFG_TUD_NET_PACKET_PREFIX_LEN sizeof(rndis_data_packet_t)
+#define CFG_TUD_NET_PACKET_SUFFIX_LEN 0
 
 CFG_TUSB_MEM_SECTION CFG_TUSB_MEM_ALIGN static uint8_t received[CFG_TUD_NET_PACKET_PREFIX_LEN + CFG_TUD_NET_MTU + CFG_TUD_NET_PACKET_PREFIX_LEN];
 CFG_TUSB_MEM_SECTION CFG_TUSB_MEM_ALIGN static uint8_t transmitted[CFG_TUD_NET_PACKET_PREFIX_LEN + CFG_TUD_NET_MTU + CFG_TUD_NET_PACKET_PREFIX_LEN];
@@ -113,9 +106,7 @@ static void do_in_xfer(uint8_t *buf, uint16_t len)
 
 void netd_report(uint8_t *buf, uint16_t len)
 {
-#if CFG_TUD_NET == OPT_NET_RNDIS_ECM
   usbd_edpt_xfer(TUD_OPT_RHPORT, _netd_itf.ep_notif, buf, len);
-#endif
 }
 
 //--------------------------------------------------------------------+
@@ -137,16 +128,11 @@ void netd_reset(uint8_t rhport)
   netd_init();
 }
 
-#if CFG_TUD_NET == OPT_NET_RNDIS_ECM
 bool netd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length)
 {
   // sanity check the descriptor
-#if CFG_TUD_NET == OPT_NET_EEM
-  TU_VERIFY (CDC_COMM_SUBCLASS_ETHERNET_EMULATION_MODEL == itf_desc->bInterfaceSubClass);
-#else
   _netd_itf.ecm_mode = (CDC_COMM_SUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL == itf_desc->bInterfaceSubClass);
   TU_VERIFY ( (TUD_RNDIS_ITF_SUBCLASS == itf_desc->bInterfaceSubClass) || _netd_itf.ecm_mode );
-#endif
 
   // confirm interface hasn't already been allocated
   TU_ASSERT(0 == _netd_itf.ep_notif);
@@ -176,7 +162,6 @@ bool netd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t
 
   return true;
 }
-#endif
 
 bool netd_open_data(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length)
 {
@@ -223,14 +208,12 @@ bool netd_control_complete(uint8_t rhport, tusb_control_request_t const * reques
   // Handle class request only
   TU_VERIFY (request->bmRequestType_bit.type == TUSB_REQ_TYPE_CLASS);
 
-#if CFG_TUD_NET == OPT_NET_RNDIS_ECM
   TU_VERIFY (_netd_itf.itf_num == request->wIndex);
 
   if ( !_netd_itf.ecm_mode && (request->bmRequestType_bit.direction == TUSB_DIR_OUT) )
   {
     rndis_class_set_handler(notify.rndis_buf, request->wLength);
   }
-#endif
 
   return true;
 }
@@ -251,9 +234,6 @@ bool netd_control_request(uint8_t rhport, tusb_control_request_t const * request
 
   TU_VERIFY (_netd_itf.itf_num == request->wIndex);
 
-#if CFG_TUD_NET == OPT_NET_EEM
-  (void)rhport;
-#else
   if (_netd_itf.ecm_mode)
   {
     /* the only required CDC-ECM Management Element Request is SetEthernetPacketFilter */
@@ -277,40 +257,15 @@ bool netd_control_request(uint8_t rhport, tusb_control_request_t const * request
       tud_control_xfer(rhport, request, notify.rndis_buf, sizeof(notify.rndis_buf));
     }
   }
-#endif
 
   return true;
 }
 
-struct cdc_eem_packet_header
-{
-  uint16_t length:14;
-  uint16_t bmCRC:1;
-  uint16_t bmType:1;
-};
-
 static void handle_incoming_packet(uint32_t len)
 {
   uint8_t *pnt = received;
   uint32_t size = 0;
 
-#if CFG_TUD_NET == OPT_NET_EEM
-  struct cdc_eem_packet_header *hdr = (struct cdc_eem_packet_header *)pnt;
-
-  (void)len;
-
-  if (hdr->bmType)
-  {
-    /* EEM Control Packet: discard it */
-    tud_network_recv_renew();
-  }
-  else
-  {
-    /* EEM Data Packet */
-    pnt += CFG_TUD_NET_PACKET_PREFIX_LEN;
-    size = hdr->length - 4; /* discard the unused CRC-32 */
-  }
-#else
   if (_netd_itf.ecm_mode)
   {
     size = len;
@@ -326,7 +281,6 @@ static void handle_incoming_packet(uint32_t len)
           size = r->DataLength;
         }
   }
-#endif
 
   bool accepted = false;
 
@@ -378,12 +332,10 @@ bool netd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_
     }
   }
 
-#if CFG_TUD_NET == OPT_NET_RNDIS_ECM
   if ( _netd_itf.ecm_mode && (ep_addr == _netd_itf.ep_notif) )
   {
     if (sizeof(notify.ecm_buf.header) == xferred_bytes) ecm_report(false);
   }
-#endif
 
   return true;
 }
@@ -402,11 +354,7 @@ void tud_network_xmit(struct pbuf *p)
   if (!can_xmit)
     return;
 
-#if CFG_TUD_NET == OPT_NET_EEM
-  len = CFG_TUD_NET_PACKET_PREFIX_LEN;
-#else
   len = (_netd_itf.ecm_mode) ? 0 : CFG_TUD_NET_PACKET_PREFIX_LEN;
-#endif
   data = transmitted + len;
 
   for(q = p; q != NULL; q = q->next)
@@ -416,16 +364,6 @@ void tud_network_xmit(struct pbuf *p)
     len += q->len;
   }
 
-#if CFG_TUD_NET == OPT_NET_EEM
-  struct cdc_eem_packet_header *hdr = (struct cdc_eem_packet_header *)transmitted;
-  /* append a fake CRC-32; the standard allows 0xDEADBEEF, which takes less CPU time */
-  data[0] = 0xDE; data[1] = 0xAD; data[2] = 0xBE; data[3] = 0xEF;
-  /* adjust length to reflect added fake CRC-32 */
-  len += 4;
-  hdr->bmType = 0; /* EEM Data Packet */
-  hdr->length = len - sizeof(struct cdc_eem_packet_header);
-  hdr->bmCRC = 0; /* Ethernet Frame CRC-32 set to 0xDEADBEEF */
-#else
   if (!_netd_itf.ecm_mode)
   {
     rndis_data_packet_t *hdr = (rndis_data_packet_t *)transmitted;
@@ -435,7 +373,6 @@ void tud_network_xmit(struct pbuf *p)
     hdr->DataOffset = sizeof(rndis_data_packet_t) - offsetof(rndis_data_packet_t, DataOffset);
     hdr->DataLength = len - sizeof(rndis_data_packet_t);
   }
-#endif
 
   do_in_xfer(transmitted, len);
 }