E-Kermit, for file upload goodness

2 files changed, 189 insertions, 0 deletions

diff --git a/projects/ekermit-test/Makefile b/projects/ekermit-test/Makefile
new file mode 100644
index 0000000..b4fab70
--- /dev/null
+++ b/projects/ekermit-test/Makefile
@@ -0,0 +1,22 @@
+TEST = ekermit-test
+
+OBJS = ../libhal-test/printf.o
+
+BOARD_OBJS += $(TOPLEVEL)/sdram-malloc.o
+
+CFLAGS += -I$(EKERMIT_DIR)
+
+LIBS += $(EKERMIT_DIR)/libekermit.a
+
+all: $(TEST:=.elf)
+
+%.elf: %.o $(BOARD_OBJS) $(OBJS) $(LIBS)
+	$(CC) $(CFLAGS) $^ -o $@ -T$(LDSCRIPT) -g -Wl,-Map=$*.map
+	$(OBJCOPY) -O binary $*.elf $*.bin
+	$(SIZE) $*.elf
+
+clean:
+	rm -f *.o
+	rm -f *.elf
+	rm -f *.bin
+	rm -f *.map
diff --git a/projects/ekermit-test/ekermit-test.c b/projects/ekermit-test/ekermit-test.c
new file mode 100644
index 0000000..3b71a69
--- /dev/null
+++ b/projects/ekermit-test/ekermit-test.c
@@ -0,0 +1,167 @@
+/*
+ * ekermit-test.c
+ * --------------
+ * A test program for the E-Kermit library.
+ *
+ * Copyright (c) 2016, NORDUnet A/S All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the NORDUnet nor the names of its contributors may
+ *   be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* This receives one or more files from a kermit client (e.g. C-Kermit),
+ * and stores them in a minimal file system on SDRAM.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "stm-init.h"
+#include "stm-sdram.h"
+#include "sdram-malloc.h"
+#include "stm-kermit.h"
+
+/* alignment for file allocations */
+#define ALIGN 16
+
+/* maximum length of file name */
+#define NAMELEN 32
+
+/* maximum number of files */
+#define NFILE 4
+
+typedef struct {
+  char name[NAMELEN];
+  uint8_t *loc;
+  size_t len;
+} filetab_t;
+filetab_t filetab[NFILE], *curfile;
+int nfile;
+
+#ifdef DUMP
+static void hexdump(uint8_t *buf, int len)
+{
+    for ( ; len > 0; buf += 16, len -= 16) {
+        int plen = (len > 16) ? 16 : len;
+        int i;
+        for (i = 0; i < plen; ++i)
+            printf("%02x ", buf[i]);
+        for ( ; i < 16; ++i)
+            printf("   ");
+        printf("| ");
+        for (i = 0; i < plen; ++i)
+            printf("%c", isprint(buf[i]) ? buf[i] : ' ');
+        printf("\n");
+    }
+}
+#endif
+
+/* Override weak function defintions for callouts in stm-kermit.c */
+
+/* Called when kermit receives an F (file) packet
+ */
+int kermit_openfile(unsigned char *name)
+{
+    if (nfile == NFILE) {
+        curfile = NULL;
+        return -1;
+    }
+    curfile = &filetab[nfile];
+    strncpy(curfile->name, (char *)name, sizeof(curfile->name));
+    curfile->loc = sdram_malloc(0);
+    if (curfile->loc == NULL) {
+        curfile = NULL;
+        return -1;
+    }
+    curfile->len = 0;
+    ++nfile;
+    return 0;
+}
+
+/* Called when kermit's receive buffer is full, after some number of D
+ * (data) packets
+ */
+int kermit_writefile(unsigned char *buf, int len)
+{
+    if (curfile == NULL)
+        return -1;
+    uint8_t *writeptr = sdram_malloc(len);
+    if (writeptr == NULL)
+        return -1;
+    memcpy(writeptr, buf, len);
+    curfile->len += len;
+    return 0;
+}
+
+/* Called when kermit receives a Z (EOF) packet
+ */
+int kermit_closefile(void)
+{
+    if (curfile == NULL)
+        return -1;
+    int pad = ALIGN - (curfile->len & (ALIGN - 1));
+    if (sdram_malloc(pad) == NULL)
+        return -1;
+    curfile = NULL;
+    return 0;
+}
+
+/* Called when kermit receives a Z (EOF) packet with a D (discard) flag
+ */
+int kermit_cancelfile(void)
+{
+    if (curfile == NULL)
+        return -1;
+    sdram_free(curfile->loc);
+    memset(curfile, 0, sizeof(*curfile));
+    --nfile;
+    return 0;
+}
+
+/* The main function is pretty simple, because the kermit library does all
+ * the work out of sight.
+ */
+int main(void)
+{
+    stm_init();
+    sdram_init();
+
+    while (1) {
+        memset((void *)filetab, 0, sizeof(filetab));
+        curfile = NULL;
+        nfile = 0;
+        kermit_main();
+        for (int i = 0; i < nfile; ++i) {
+            filetab_t *f = &filetab[i];
+            printf("%d. %-16s %p %d\n", i, f->name, f->loc, f->len);
+#ifdef DUMP
+            hexdump(f->loc, f->len);
+#endif
+            sdram_free(f->loc);
+        }
+    }
+}