X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/d00a30d56fc4200a9a921d37ab7dc9e18e092bc0..72622d6429ebd62f6e416356aeda565956352aed:/armsrc/cmd.c

diff --git a/armsrc/cmd.c b/armsrc/cmd.c
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+++ b/armsrc/cmd.c
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+/*
+ * Proxmark send and receive commands
+ *
+ * Copyright (c) 2012, Roel Verdult
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of the copyright holders 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 ''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 HOLDERS 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.
+ *
+ * @file cmd.c
+ * @brief
+ */
+
+#include "cmd.h"
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include "common.h"
+#include "usb_cmd.h"
+#include "usb_cdc.h"
+
+
+bool cmd_receive(UsbCommand* cmd) {
+
+	// Check if there is a usb packet available
+	if (!usb_poll())
+		return false;
+
+	// Try to retrieve the available command frame
+	size_t rxlen = usb_read((uint8_t*)cmd, sizeof(UsbCommand));
+
+	// Check if the transfer was complete
+	if (rxlen != sizeof(UsbCommand))
+		return false;
+
+	// Received command successfully
+	return true;
+}
+
+
+bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, void* data, size_t len) {
+	UsbCommand txcmd;
+
+	for (size_t i = 0; i < sizeof(UsbCommand); i++) {
+		((uint8_t*)&txcmd)[i] = 0x00;
+	}
+
+	// Compose the outgoing command frame
+	txcmd.cmd = cmd;
+	txcmd.arg[0] = arg0;
+	txcmd.arg[1] = arg1;
+	txcmd.arg[2] = arg2;
+
+	// Add the (optional) content to the frame, with a maximum size of USB_CMD_DATA_SIZE
+	if (data && len) {
+		len = MIN(len, USB_CMD_DATA_SIZE);
+		for (size_t i = 0; i < len; i++) {
+			txcmd.d.asBytes[i] = ((uint8_t*)data)[i];
+		}
+	}
+
+	// Send frame and make sure all bytes are transmitted
+	if (usb_write((uint8_t*)&txcmd, sizeof(UsbCommand)) != 0) return false;
+
+	return true;
+}