aboutsummaryrefslogtreecommitdiff
path: root/Host/libnxt-0.3/samba.c
diff options
context:
space:
mode:
Diffstat (limited to 'Host/libnxt-0.3/samba.c')
-rw-r--r--Host/libnxt-0.3/samba.c182
1 files changed, 182 insertions, 0 deletions
diff --git a/Host/libnxt-0.3/samba.c b/Host/libnxt-0.3/samba.c
new file mode 100644
index 0000000..ff3e037
--- /dev/null
+++ b/Host/libnxt-0.3/samba.c
@@ -0,0 +1,182 @@
+/**
+ * NXT bootstrap interface; NXT Bootstrap control functions.
+ *
+ * Copyright 2006 David Anderson <david.anderson@calixo.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "error.h"
+#include "lowlevel.h"
+#include "samba.h"
+
+static nxt_error_t
+nxt_format_command2(char *buf, char cmd,
+ nxt_addr_t addr, nxt_word_t word)
+{
+ snprintf(buf, 20, "%c%08X,%08X#", cmd, addr, word);
+
+ return NXT_OK;
+}
+
+static nxt_error_t
+nxt_format_command(char *buf, char cmd, nxt_addr_t addr)
+{
+ snprintf(buf, 20, "%c%08X#", cmd, addr);
+
+ return NXT_OK;
+}
+
+
+static nxt_error_t
+nxt_write_common(nxt_t *nxt, char type, nxt_addr_t addr, nxt_word_t w)
+{
+ char buf[21] = {0};
+
+ NXT_ERR(nxt_format_command2(buf, type, addr, w));
+ NXT_ERR(nxt_send_str(nxt, buf));
+
+ return NXT_OK;
+}
+
+
+nxt_error_t
+nxt_write_byte(nxt_t *nxt, nxt_addr_t addr, nxt_byte_t b)
+{
+ return nxt_write_common(nxt, 'O', addr, b);
+}
+
+
+nxt_error_t
+nxt_write_hword(nxt_t *nxt, nxt_addr_t addr, nxt_hword_t hw)
+{
+ return nxt_write_common(nxt, 'H', addr, hw);
+}
+
+
+nxt_error_t
+nxt_write_word(nxt_t *nxt, nxt_addr_t addr, nxt_word_t w)
+{
+ return nxt_write_common(nxt, 'W', addr, w);
+}
+
+
+static nxt_error_t
+nxt_read_common(nxt_t *nxt, char cmd, int len,
+ nxt_addr_t addr, nxt_word_t *word)
+{
+ char buf[20] = {0};
+ nxt_word_t w;
+
+ NXT_ERR(nxt_format_command2(buf, cmd, addr, len));
+ NXT_ERR(nxt_send_str(nxt, buf));
+ NXT_ERR(nxt_recv_buf(nxt, buf, len));
+
+ w = *((nxt_word_t*)buf);
+
+#ifdef _NXT_BIG_ENDIAN
+ /* The value returned is in little-endian byte ordering, so swap
+ bytes on a big-endian architecture. */
+ w = (((w & 0x000000FF) << 24) +
+ ((w & 0x0000FF00) << 8) +
+ ((w & 0x00FF0000) >> 8) +
+ ((w & 0xFF000000) >> 24));
+#endif /* _NXT_BIG_ENDIAN */
+
+ *word = w;
+ return NXT_OK;
+}
+
+
+nxt_error_t
+nxt_read_byte(nxt_t *nxt, nxt_addr_t addr, nxt_byte_t *b)
+{
+ nxt_word_t w;
+ NXT_ERR(nxt_read_common(nxt, 'o', 1, addr, &w));
+ *b = (nxt_byte_t)w;
+
+ return NXT_OK;
+}
+
+
+nxt_error_t
+nxt_read_hword(nxt_t *nxt, nxt_addr_t addr, nxt_hword_t *hw)
+{
+ nxt_word_t w;
+
+ NXT_ERR(nxt_read_common(nxt, 'h', 2, addr, &w));
+ *hw = (nxt_hword_t)w;
+
+ return NXT_OK;
+}
+
+
+nxt_error_t
+nxt_read_word(nxt_t *nxt, nxt_addr_t addr, nxt_word_t *w)
+{
+ return nxt_read_common(nxt, 'w', 4, addr, w);
+}
+
+
+nxt_error_t
+nxt_send_file(nxt_t *nxt, nxt_addr_t addr, char *file, unsigned short len)
+{
+ char buf[20];
+
+ NXT_ERR(nxt_format_command2(buf, 'S', addr, len));
+ NXT_ERR(nxt_send_str(nxt, buf));
+ NXT_ERR(nxt_send_buf(nxt, file, len));
+
+ return NXT_OK;
+}
+
+
+nxt_error_t
+nxt_recv_file(nxt_t *nxt, nxt_addr_t addr, char *file, unsigned short len)
+{
+ char buf[20];
+
+ NXT_ERR(nxt_format_command2(buf, 'R', addr, len));
+ NXT_ERR(nxt_send_str(nxt, buf));
+ NXT_ERR(nxt_recv_buf(nxt, file, len+1));
+ return NXT_OK;
+}
+
+
+nxt_error_t
+nxt_jump(nxt_t *nxt, nxt_addr_t addr)
+{
+ char buf[20];
+
+ NXT_ERR(nxt_format_command(buf, 'G', addr));
+
+ NXT_ERR(nxt_send_str(nxt, buf));
+ return NXT_OK;
+}
+
+
+nxt_error_t
+nxt_samba_version(nxt_t *nxt, char *version)
+{
+ char buf[3];
+ strcpy(buf, "V#");
+ NXT_ERR(nxt_send_str(nxt, buf));
+ NXT_ERR(nxt_recv_buf(nxt, version, 4));
+ version[4] = 0;
+ return NXT_OK;
+}