update(class/cdc/usbd_cdc_ecm): support transfer api for enet & wireless without lwip

class/cdc/usb_cdc.h

@@ -524,7 +524,7 @@ struct cdc_ncm_ndp16 {
     int_ep,                                                /* bEndpointAddress */              \
     0x03,                                                  /* bmAttributes */                  \
     0x08, 0x00,                                            /* wMaxPacketSize */                \
-    0x10,                                                  /* bInterval */                     \
+    0x05,                                                  /* bInterval */                     \
     0x09,                                                  /* bLength */                       \
     USB_DESCRIPTOR_TYPE_INTERFACE,                         /* bDescriptorType */               \
     (uint8_t)(bFirstInterface + 1),                        /* bInterfaceNumber */              \
@@ -596,7 +596,7 @@ eth_statistics, wMaxSegmentSize, wNumberMCFilters, bNumberPowerFilters, str_idx)
     int_ep,                                                /* bEndpointAddress */              \
     0x03,                                                  /* bmAttributes */                  \
     0x10, 0x00,                                            /* wMaxPacketSize */                \
-    0x10,                                                  /* bInterval */                     \
+    0x05,                                                  /* bInterval */                     \
     0x09,                                                  /* bLength */                       \
     USB_DESCRIPTOR_TYPE_INTERFACE,                         /* bDescriptorType */               \
     (uint8_t)(bFirstInterface + 1),                        /* bInterfaceNumber */              \

class/cdc/usbd_cdc_ecm.c

@@ -7,17 +7,21 @@
 #include "usbd_cdc_ecm.h"
 
 #define CDC_ECM_OUT_EP_IDX 0
-#define CDC_ECM_IN_EP_IDX   1
-#define CDC_ECM_INT_EP_IDX  2
+#define CDC_ECM_IN_EP_IDX  1
+#define CDC_ECM_INT_EP_IDX 2
+
+/* Ethernet Maximum Segment size, typically 1514 bytes */
+#define CONFIG_CDC_ECM_ETH_MAX_SEGSZE 1536U
 
 /* Describe EndPoints configuration */
 static struct usbd_endpoint cdc_ecm_ep_data[3];
 
+#ifdef CONFIG_USBDEV_CDC_ECM_USING_LWIP
 static USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_cdc_ecm_rx_buffer[CONFIG_CDC_ECM_ETH_MAX_SEGSZE];
 static USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_cdc_ecm_tx_buffer[CONFIG_CDC_ECM_ETH_MAX_SEGSZE];
+#endif
 static USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_cdc_ecm_notify_buf[16];
 
-volatile uint8_t *g_cdc_ecm_rx_data_buffer = NULL;
 volatile uint32_t g_cdc_ecm_rx_data_length = 0;
 volatile uint32_t g_cdc_ecm_tx_data_length = 0;
 
@@ -68,8 +72,10 @@ void usbd_cdc_ecm_send_notify(uint8_t notifycode, uint8_t value, uint32_t *speed
             break;
     }
 
-    if (bytes2send) {
-        usbd_ep_start_write(0, cdc_ecm_ep_data[CDC_ECM_INT_EP_IDX].ep_addr, g_cdc_ecm_notify_buf, bytes2send);
+    if (usb_device_is_configured(0)) {
+        if (bytes2send) {
+            usbd_ep_start_write(0, cdc_ecm_ep_data[CDC_ECM_INT_EP_IDX].ep_addr, g_cdc_ecm_notify_buf, bytes2send);
+        }
     }
 }
 
@@ -93,11 +99,11 @@ static int cdc_ecm_class_interface_request_handler(uint8_t busid, struct usb_set
              * bit3 Broadcast
              * bit4 Multicast
             */
-            if (g_current_net_status == 0) {
-                g_current_net_status = 1;
-                usbd_cdc_ecm_send_notify(CDC_ECM_NOTIFY_CODE_NETWORK_CONNECTION, CDC_ECM_NET_CONNECTED, NULL);
-            }
-
+#ifdef CONFIG_USBDEV_CDC_ECM_USING_LWIP
+            g_connect_speed_table[0] = 100000000; /* 100 Mbps */
+            g_connect_speed_table[1] = 100000000; /* 100 Mbps */
+            usbd_cdc_ecm_set_connect(true, g_connect_speed_table);
+#endif
             break;
         default:
             USB_LOG_WRN("Unhandled CDC ECM Class bRequest 0x%02x\r\n", setup->bRequest);
@@ -117,10 +123,11 @@ void cdc_ecm_notify_handler(uint8_t busid, uint8_t event, void *arg)
             g_current_net_status = 0;
             g_cdc_ecm_rx_data_length = 0;
             g_cdc_ecm_tx_data_length = 0;
-            g_cdc_ecm_rx_data_buffer = NULL;
             break;
         case USBD_EVENT_CONFIGURED:
-            usbd_ep_start_read(0, cdc_ecm_ep_data[CDC_ECM_OUT_EP_IDX].ep_addr, &g_cdc_ecm_rx_buffer[g_cdc_ecm_rx_data_length], usbd_get_ep_mps(busid, cdc_ecm_ep_data[CDC_ECM_OUT_EP_IDX].ep_addr));
+#ifdef CONFIG_USBDEV_CDC_ECM_USING_LWIP
+            usbd_cdc_ecm_start_read(g_cdc_ecm_rx_buffer, CONFIG_CDC_ECM_ETH_MAX_SEGSZE);
+#endif
             break;
 
         default:
@@ -132,14 +139,8 @@ void cdc_ecm_bulk_out(uint8_t busid, uint8_t ep, uint32_t nbytes)
 {
     (void)busid;
 
-    g_cdc_ecm_rx_data_length += nbytes;
-
-    if (nbytes < usbd_get_ep_mps(0, ep)) {
-        g_cdc_ecm_rx_data_buffer = g_cdc_ecm_rx_buffer;
-        usbd_cdc_ecm_data_recv_done(g_cdc_ecm_rx_buffer, g_cdc_ecm_rx_data_length);
-    } else {
-        usbd_ep_start_read(0, ep, &g_cdc_ecm_rx_buffer[g_cdc_ecm_rx_data_length], usbd_get_ep_mps(0, ep));
-    }
+    g_cdc_ecm_rx_data_length = nbytes;
+    usbd_cdc_ecm_data_recv_done(g_cdc_ecm_rx_data_length);
 }
 
 void cdc_ecm_bulk_in(uint8_t busid, uint8_t ep, uint32_t nbytes)
@@ -150,6 +151,7 @@ void cdc_ecm_bulk_in(uint8_t busid, uint8_t ep, uint32_t nbytes)
         /* send zlp */
         usbd_ep_start_write(0, ep, NULL, 0);
     } else {
+        usbd_cdc_ecm_data_send_done(g_cdc_ecm_tx_data_length);
         g_cdc_ecm_tx_data_length = 0;
     }
 }
@@ -160,14 +162,20 @@ void cdc_ecm_int_in(uint8_t busid, uint8_t ep, uint32_t nbytes)
     (void)ep;
     (void)nbytes;
 
-    if (g_current_net_status == 1) {
-        g_current_net_status = 2;
-        usbd_cdc_ecm_send_notify(CDC_ECM_NOTIFY_CODE_NETWORK_CONNECTION, CDC_ECM_NET_CONNECTED, g_connect_speed_table);
+    if (g_current_net_status == 2) {
+        g_current_net_status = 3;
+        usbd_cdc_ecm_send_notify(CDC_ECM_NOTIFY_CODE_CONNECTION_SPEED_CHANGE, 0, g_connect_speed_table);
+    } else {
+        g_current_net_status = 0;
     }
 }
 
 int usbd_cdc_ecm_start_write(uint8_t *buf, uint32_t len)
 {
+    if (!usb_device_is_configured(0)) {
+        return -USB_ERR_NODEV;
+    }
+
     if (g_cdc_ecm_tx_data_length > 0) {
         return -USB_ERR_BUSY;
     }
@@ -175,14 +183,17 @@ int usbd_cdc_ecm_start_write(uint8_t *buf, uint32_t len)
     g_cdc_ecm_tx_data_length = len;
 
     USB_LOG_DBG("txlen:%d\r\n", g_cdc_ecm_tx_data_length);
-    return usbd_ep_start_write(0, cdc_ecm_ep_data[CDC_ECM_IN_EP_IDX].ep_addr, buf, g_cdc_ecm_tx_data_length);
+    return usbd_ep_start_write(0, cdc_ecm_ep_data[CDC_ECM_IN_EP_IDX].ep_addr, buf, len);
 }
 
-void usbd_cdc_ecm_start_read_next(void)
+int usbd_cdc_ecm_start_read(uint8_t *buf, uint32_t len)
 {
+    if (!usb_device_is_configured(0)) {
+        return -USB_ERR_NODEV;
+    }
+
     g_cdc_ecm_rx_data_length = 0;
-    g_cdc_ecm_rx_data_buffer = NULL;
-    usbd_ep_start_read(0, cdc_ecm_ep_data[CDC_ECM_OUT_EP_IDX].ep_addr, g_cdc_ecm_rx_buffer, usbd_get_ep_mps(0, cdc_ecm_ep_data[CDC_ECM_OUT_EP_IDX].ep_addr));
+    usbd_ep_start_read(0, cdc_ecm_ep_data[CDC_ECM_OUT_EP_IDX].ep_addr, buf, len);
 }
 
 #ifdef CONFIG_USBDEV_CDC_ECM_USING_LWIP
@@ -190,19 +201,19 @@ struct pbuf *usbd_cdc_ecm_eth_rx(void)
 {
     struct pbuf *p;
 
-    if (g_cdc_ecm_rx_data_buffer == NULL) {
+    if (g_cdc_ecm_rx_data_length == 0) {
         return NULL;
     }
     p = pbuf_alloc(PBUF_RAW, g_cdc_ecm_rx_data_length, PBUF_POOL);
     if (p == NULL) {
-        usbd_cdc_ecm_start_read_next();
+        usbd_cdc_ecm_start_read(g_cdc_ecm_rx_buffer, CONFIG_CDC_ECM_ETH_MAX_SEGSZE);
         return NULL;
     }
     usb_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);
-    usbd_cdc_ecm_start_read_next();
+    usbd_cdc_ecm_start_read(g_cdc_ecm_rx_buffer, CONFIG_CDC_ECM_ETH_MAX_SEGSZE);
     return p;
 }
 
@@ -250,13 +261,24 @@ struct usbd_interface *usbd_cdc_ecm_init_intf(struct usbd_interface *intf, const
     return intf;
 }
 
-void usbd_cdc_ecm_set_connect_speed(uint32_t speed[2])
+void usbd_cdc_ecm_set_connect(bool connect, uint32_t speed[2])
+{
+    if (connect) {
+        g_current_net_status = 2;
+        memcpy(g_connect_speed_table, speed, 8);
+        usbd_cdc_ecm_send_notify(CDC_ECM_NOTIFY_CODE_NETWORK_CONNECTION, CDC_ECM_NET_CONNECTED, NULL);
+    } else {
+        g_current_net_status = 1;
+        usbd_cdc_ecm_send_notify(CDC_ECM_NOTIFY_CODE_NETWORK_CONNECTION, CDC_ECM_NET_DISCONNECTED, NULL);
+    }
+}
+
+__WEAK void usbd_cdc_ecm_data_recv_done(uint32_t len)
 {
-    memcpy(g_connect_speed_table, speed, 8);
+    (void)len;
 }
 
-__WEAK void usbd_cdc_ecm_data_recv_done(uint8_t *buf, uint32_t len)
+__WEAK void usbd_cdc_ecm_data_send_done(uint32_t len)
 {
-    (void)buf;
     (void)len;
 }

class/cdc/usbd_cdc_ecm.h

@@ -12,21 +12,15 @@
 extern "C" {
 #endif
 
-/* Ethernet Maximum Segment size, typically 1514 bytes */
-#define CONFIG_CDC_ECM_ETH_MAX_SEGSZE 1514U
-
 /* Init cdc ecm interface driver */
 struct usbd_interface *usbd_cdc_ecm_init_intf(struct usbd_interface *intf, const uint8_t int_ep, const uint8_t out_ep, const uint8_t in_ep);
 
-/* Setup request command callback api */
-void usbd_cdc_ecm_set_connect_speed(uint32_t speed[2]);
+void usbd_cdc_ecm_set_connect(bool connect, uint32_t speed[2]);
 
-/* Api for eth only without any net stack */
-uint8_t *usbd_cdc_ecm_get_tx_buffer(void);
-void usbd_cdc_ecm_send_done(void);
+void usbd_cdc_ecm_data_recv_done(uint32_t len);
+void usbd_cdc_ecm_data_send_done(uint32_t len);
 int usbd_cdc_ecm_start_write(uint8_t *buf, uint32_t len);
-void usbd_cdc_ecm_data_recv_done(uint8_t *buf, uint32_t len);
-void usbd_cdc_ecm_start_read_next(void);
+int usbd_cdc_ecm_start_read(uint8_t *buf, uint32_t len);
 
 #ifdef CONFIG_USBDEV_CDC_ECM_USING_LWIP
 #include "lwip/netif.h"

demo/cdc_ecm_template.c

@@ -6,6 +6,10 @@
 #include "usbd_core.h"
 #include "usbd_cdc_ecm.h"
 
+#ifndef CONFIG_USBDEV_CDC_ECM_USING_LWIP
+#error "Please enable CONFIG_USBDEV_CDC_ECM_USING_LWIP for this demo"
+#endif
+
 /*!< endpoint address */
 #define CDC_IN_EP          0x81
 #define CDC_OUT_EP         0x02
@@ -222,12 +226,12 @@ void cdc_ecm_lwip_init(void)
     while (!netif_is_up(netif)) {
     }
 
-    // while (dhserv_init(&dhcp_config)) {}
+    while (dhserv_init(&dhcp_config)) {}
 
-    // while (dnserv_init(&ipaddr, PORT_DNS, dns_query_proc)) {}
+    while (dnserv_init(&ipaddr, PORT_DNS, dns_query_proc)) {}
 }
 
-void usbd_cdc_ecm_data_recv_done(uint8_t *buf, uint32_t len)
+void usbd_cdc_ecm_data_recv_done(uint32_t len)
 {
 }