4 files changed, 92 insertions, 0 deletions
diff --git a/code/core/fe310/Makefile b/code/core/fe310/Makefile
new file mode 100644
index 0000000..6dd42e2
--- /dev/null
+++ b/code/core/fe310/Makefile
@@ -0,0 +1,20 @@
+include ../../Makefile.platform
+CFLAGS=$(CFLAGS_PL) $(PIC) -I..
+
+obj_tr = transport.o
+obj_tm = time.o
+
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $<
+
+all: libecptr.a libecptm.a
+	
+libecptr.a: $(obj_tr)
+	$(AR) rcs libecptr.a $(obj_tr)
+
+libecptm.a: $(obj_tm)
+	$(AR) rcs libecptm.a $(obj_tm)
+
+clean:
+	rm -f *.o *.a
diff --git a/code/core/fe310/time.c b/code/core/fe310/time.c
new file mode 100644
index 0000000..2ff98cb
--- /dev/null
+++ b/code/core/fe310/time.c
@@ -0,0 +1,18 @@
+#include <core.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+static ecp_cts_t t_abstime_ms(ecp_cts_t msec) {
+    volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
+    
+    uint64_t now_ms = *mtime * 1000 / RTC_FREQ;
+    return now_ms + msec;
+}
+
+int ecp_time_init(ECPTimeIface *t) {
+    t->init = 1;
+    t->abstime_ms = t_abstime_ms;
+    t->sleep_ms = NULL;
+    return 0;
+}
diff --git a/code/core/fe310/transport.c b/code/core/fe310/transport.c
new file mode 100644
index 0000000..7afdbf7
--- /dev/null
+++ b/code/core/fe310/transport.c
@@ -0,0 +1,44 @@
+#include <stddef.h>
+#include <string.h>
+
+#include <core.h>
+
+#include "eos.h"
+#include "net.h"
+
+static int t_addr_eq(ECPNetAddr *addr1, ECPNetAddr *addr2) {
+    if (addr1->port != addr2->port) return 0;
+    if (memcmp(addr1->host, addr2->host, sizeof(addr1->host)) != 0) return 0;
+    return 1;
+}
+
+static int t_open(int *sock, void *addr_s) {
+    *sock = 0;
+    return ECP_OK;
+}
+
+static void t_close(int *sock) {
+}
+
+static ssize_t t_send(int *sock, void *msg, size_t msg_size, ECPNetAddr *addr) {
+    unsigned char *buf = msg;
+    size_t addr_len = sizeof(addr->host) + sizeof(addr->port);
+    uint16_t buf_size = msg_size + addr_len;
+    int rv;
+
+    buf -= addr_len;
+    rv = eos_net_send(EOS_NET_CMD_PKT, buf, buf_size);
+    if (rv) return ECP_ERR_SEND;
+    return msg_size;
+}
+
+int ecp_transport_init(ECPTransportIface *t) {
+    t->init = 1;
+    t->open = t_open;
+    t->close = t_close;
+    t->send = t_send;
+    t->recv = NULL;
+    t->addr_eq = t_addr_eq;
+    t->addr_set = NULL;
+    return ECP_OK;
+}
diff --git a/code/core/fe310/transport.h b/code/core/fe310/transport.h
new file mode 100644
index 0000000..c35e13e
--- /dev/null
+++ b/code/core/fe310/transport.h
@@ -0,0 +1,10 @@
+#include <stdint.h>
+
+#define ECP_IPv4_ADDR_SIZE          4
+
+typedef int ECPNetSock;
+typedef struct ECPNetAddr {
+    unsigned char host[ECP_IPv4_ADDR_SIZE];
+    uint16_t port;
+} ECPNetAddr;
+