Separate Olimex transports and drivers.

The "olimex" transport has been divided into "cp210x" and "cdc_acm",
each of which take a specific vendor/product combination in their
constructor. Support for the MSP430-JTAG-ISO-MK2 has been moved into its
own driver instance.

Makefile

@@ -114,7 +114,8 @@ OBJ=\
     util/gdb_proto.o \
     util/dynload.o \
     util/demangle.o \
-    transport/olimex.o \
+    transport/cp210x.o \
+    transport/cdc_acm.o \
     transport/olimex_iso.o \
     transport/rf2500.o \
     transport/ti3410.o \

drivers/fet.c

@@ -35,10 +35,11 @@
 #include "opdb.h"
 
 #include "uif.h"
-#include "olimex.h"
 #include "olimex_iso.h"
 #include "rf2500.h"
 #include "ti3410.h"
+#include "cp210x.h"
+#include "cdc_acm.h"
 #include "obl.h"
 
 /* Send data in separate packets, as in the RF2500 */
@@ -1113,7 +1114,7 @@ const struct device_class device_rf2500 = {
 	.poll		= fet_poll
 };
 
-static device_t fet_open_olimex(const struct device_args *args)
+static device_t fet_open_olimex_iso_mk2(const struct device_args *args)
 {
 	transport_t trans;
 	uint32_t version;
@@ -1121,7 +1122,8 @@ static device_t fet_open_olimex(const struct device_args *args)
 	if (args->flags & DEVICE_FLAG_TTY)
 		trans = uif_open(args->path, UIF_TYPE_OLIMEX);
 	else
-		trans = olimex_open(args->path, args->requested_serial);
+		trans = cdc_acm_open(args->path, args->requested_serial,
+				     115200, 0x15ba, 0x0100);
 
 	if (!trans)
 		return NULL;
@@ -1143,7 +1145,9 @@ static device_t fet_open_olimex(const struct device_args *args)
 		if (args->flags & DEVICE_FLAG_TTY)
 			trans = uif_open(args->path, UIF_TYPE_OLIMEX);
 		else
-			trans = olimex_open(args->path, args->requested_serial);
+			trans = cdc_acm_open(args->path,
+				    args->requested_serial,
+				    115200, 0x15ba, 0x0100);
 
 		if (!trans)
 			return NULL;
@@ -1152,6 +1156,39 @@ static device_t fet_open_olimex(const struct device_args *args)
 	if (!obl_get_version(trans, &version))
 		printc_dbg("Olimex firmware version: %x\n", version);
 
+	return fet_open(args, FET_PROTO_NOLEAD_SEND | FET_PROTO_EXTRA_RECV |
+			      FET_PROTO_IDENTIFY_NEW | FET_PROTO_FORCE_RESET,
+			trans, &device_olimex_iso_mk2);
+}
+
+const struct device_class device_olimex_iso_mk2 = {
+	.name		= "olimex-iso-mk2",
+	.help		=
+"Olimex MSP430-JTAG-ISO-MK2.",
+	.open		= fet_open_olimex_iso_mk2,
+	.destroy	= fet_destroy,
+	.readmem	= fet_readmem,
+	.writemem	= fet_writemem,
+	.erase		= fet_erase,
+	.getregs	= fet_getregs,
+	.setregs	= fet_setregs,
+	.ctl		= fet_ctl,
+	.poll		= fet_poll
+};
+
+static device_t fet_open_olimex(const struct device_args *args)
+{
+	transport_t trans;
+
+	if (args->flags & DEVICE_FLAG_TTY)
+		trans = uif_open(args->path, UIF_TYPE_OLIMEX);
+	else
+		trans = cdc_acm_open(args->path, args->requested_serial,
+				     115200, 0x15ba, 0x0031);
+
+	if (!trans)
+		return NULL;
+
 	return fet_open(args, FET_PROTO_NOLEAD_SEND | FET_PROTO_EXTRA_RECV |
 			      FET_PROTO_IDENTIFY_NEW | FET_PROTO_FORCE_RESET,
 			trans, &device_olimex);
@@ -1179,7 +1216,8 @@ static device_t fet_open_olimex_v1(const struct device_args *args)
 	if (args->flags & DEVICE_FLAG_TTY)
 		trans = uif_open(args->path, UIF_TYPE_OLIMEX_V1);
 	else
-		trans = olimex_open(args->path, args->requested_serial);
+		trans = cp210x_open(args->path, args->requested_serial,
+				    500000, 0x15ba, 0x0002);
 
         if (!trans)
                 return NULL;

drivers/fet.h

@@ -25,6 +25,7 @@ extern const struct device_class device_rf2500;
 extern const struct device_class device_olimex;
 extern const struct device_class device_olimex_v1;
 extern const struct device_class device_olimex_iso;
+extern const struct device_class device_olimex_iso_mk2;
 extern const struct device_class device_uif;
 
 #endif

mspdebug.man

@@ -98,6 +98,9 @@ to a V1 device via a tty interface.
 .IP "\fBolimex-iso\fR"
 Connect to an Olimex MSP-JTAG-ISO device. Both USB and tty access are
 supported.
+.IP "\fBolimex-iso-mk2\fR"
+Connect to an Olimex MSP430-JTAG-ISO-MK2 device. Both USB and tty
+access are supported.
 .IP "\fBsim\fR"
 Do not connect to any hardware device, but instead start in simulation
 mode. A 64k buffer is allocated to simulate the device memory.

transport/cdc_acm.c

@@ -0,0 +1,324 @@
+/* MSPDebug - debugging tool for the eZ430
+ * Copyright (C) 2009-2012 Daniel Beer
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <usb.h>
+
+#include "cdc_acm.h"
+#include "util.h"
+#include "usbutil.h"
+#include "output.h"
+
+#define READ_BUFFER_SIZE	1024
+
+struct cdc_acm_transport {
+	struct transport        base;
+
+	int                     int_number;
+	struct usb_dev_handle   *handle;
+
+	int			in_ep;
+	int			out_ep;
+
+	/* We have to implement an intermediate read buffer, because
+	 * some interfaces are buggy and don't like single-byte reads.
+	 */
+	int			rbuf_len;
+	int			rbuf_ptr;
+	char			rbuf[READ_BUFFER_SIZE];
+};
+
+#define CDC_INTERFACE_CLASS		10
+
+#define TIMEOUT		                10000
+
+/* CDC requests */
+#define CDC_REQTYPE_HOST_TO_DEVICE	0x21
+#define CDC_SET_CONTROL			0x22
+#define CDC_SET_LINE_CODING             0x20
+
+/* Modem control line bitmask */
+#define CDC_CTRL_DTR			0x01
+#define CDC_CTRL_RTS			0x02
+
+static int usbtr_send(transport_t tr_base, const uint8_t *data, int len)
+{
+	struct cdc_acm_transport *tr = (struct cdc_acm_transport *)tr_base;
+	int sent;
+
+#ifdef DEBUG_CDC_ACM
+	debug_hexdump(__FILE__ ": USB transfer out", data, len);
+#endif
+	while (len) {
+		sent = usb_bulk_write(tr->handle, tr->out_ep,
+				      (char *)data, len, TIMEOUT);
+		if (sent <= 0) {
+			pr_error(__FILE__": can't send data");
+			return -1;
+		}
+
+		data += sent;
+		len -= sent;
+	}
+
+	return 0;
+}
+
+static int usbtr_recv(transport_t tr_base, uint8_t *databuf, int len)
+{
+	struct cdc_acm_transport *tr = (struct cdc_acm_transport *)tr_base;
+
+	if (tr->rbuf_ptr >= tr->rbuf_len) {
+		tr->rbuf_ptr = 0;
+		tr->rbuf_len = usb_bulk_read(tr->handle, tr->in_ep,
+					     tr->rbuf, sizeof(tr->rbuf),
+					     TIMEOUT);
+
+		if (tr->rbuf_len <= 0) {
+			pr_error(__FILE__": can't receive data");
+			return -1;
+		}
+
+#ifdef DEBUG_CDC_ACM
+		debug_hexdump(__FILE__": USB transfer in",
+			      (uint8_t *)tr->rbuf, tr->rbuf_len);
+#endif
+	}
+
+	if (tr->rbuf_ptr + len > tr->rbuf_len)
+		len = tr->rbuf_len - tr->rbuf_ptr;
+
+	memcpy(databuf, tr->rbuf + tr->rbuf_ptr, len);
+	tr->rbuf_ptr += len;
+
+	return len;
+}
+
+static void usbtr_destroy(transport_t tr_base)
+{
+	struct cdc_acm_transport *tr = (struct cdc_acm_transport *)tr_base;
+
+	usb_release_interface(tr->handle, tr->int_number);
+	usb_close(tr->handle);
+	free(tr);
+}
+
+static int usbtr_flush(transport_t tr_base)
+{
+	struct cdc_acm_transport *tr = (struct cdc_acm_transport *)tr_base;
+	char buf[64];
+
+	/* Flush out lingering data */
+	while (usb_bulk_read(tr->handle, tr->in_ep,
+			     buf, sizeof(buf),
+			     100) > 0);
+
+	tr->rbuf_len = 0;
+	tr->rbuf_ptr = 0;
+	return 0;
+}
+
+static int usbtr_set_modem(transport_t tr_base, transport_modem_t state)
+{
+	struct cdc_acm_transport *tr = (struct cdc_acm_transport *)tr_base;
+	int value = 0;
+
+	if (state & TRANSPORT_MODEM_DTR)
+		value |= CDC_CTRL_DTR;
+	if (state & TRANSPORT_MODEM_RTS)
+		value |= CDC_CTRL_RTS;
+
+#ifdef DEBUG_CDC_ACM
+	printc(__FILE__": modem ctrl = 0x%x\n", value);
+#endif
+
+	if (usb_control_msg(tr->handle, CDC_REQTYPE_HOST_TO_DEVICE,
+			    CDC_SET_CONTROL, value, 0,
+			    NULL, 0, 300) < 0) {
+		pr_error("cdc_acm: failed to set modem control lines\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static const struct transport_class cdc_acm_class = {
+	.destroy	= usbtr_destroy,
+	.send		= usbtr_send,
+	.recv		= usbtr_recv,
+	.flush		= usbtr_flush,
+	.set_modem	= usbtr_set_modem
+};
+
+static int find_interface(struct cdc_acm_transport *tr,
+			  struct usb_device *dev)
+{
+	struct usb_config_descriptor *c = &dev->config[0];
+	int i;
+
+	for (i = 0; i < c->bNumInterfaces; i++) {
+		struct usb_interface *intf = &c->interface[i];
+		struct usb_interface_descriptor *desc = &intf->altsetting[0];
+		int j;
+
+		if (desc->bInterfaceClass != CDC_INTERFACE_CLASS)
+			continue;
+
+		/* Look for bulk in/out endpoints */
+		tr->in_ep = -1;
+		tr->out_ep = -1;
+
+		for (j = 0; j < desc->bNumEndpoints; j++) {
+			struct usb_endpoint_descriptor *ep =
+				&desc->endpoint[j];
+			const int type =
+				ep->bmAttributes & USB_ENDPOINT_TYPE_MASK;
+			const int addr = ep->bEndpointAddress;
+
+			if (type != USB_ENDPOINT_TYPE_BULK)
+				continue;
+
+			if (addr & USB_ENDPOINT_DIR_MASK)
+				tr->in_ep = addr;
+			else
+				tr->out_ep = addr;
+		}
+
+		if (tr->in_ep >= 0 && tr->out_ep >= 0) {
+			tr->int_number = i;
+			return 0;
+		}
+	}
+
+	return -1;
+}
+
+static int open_interface(struct cdc_acm_transport *tr,
+			  struct usb_device *dev)
+{
+#if defined(__linux__)
+	int drv;
+	char drName[256];
+#endif
+
+	tr->handle = usb_open(dev);
+	if (!tr->handle) {
+		pr_error(__FILE__": can't open device");
+		return -1;
+	}
+
+#if defined(__linux__)
+	drv = usb_get_driver_np(tr->handle, tr->int_number, drName,
+				sizeof(drName));
+	if (drv >= 0) {
+		if (usb_detach_kernel_driver_np(tr->handle,
+						tr->int_number) < 0)
+			pr_error(__FILE__": warning: can't detach "
+			       "kernel driver");
+	}
+#endif
+
+	if (usb_claim_interface(tr->handle, tr->int_number) < 0) {
+		pr_error(__FILE__": can't claim interface");
+		usb_close(tr->handle);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int configure_port(struct cdc_acm_transport *tr, int baud_rate)
+{
+	uint8_t line_coding[7];
+
+	line_coding[0] = baud_rate & 0xff;
+	line_coding[1] = (baud_rate >> 8) & 0xff;
+	line_coding[2] = (baud_rate >> 16) & 0xff;
+	line_coding[3] = (baud_rate >> 24) & 0xff;
+	line_coding[4] = 0; /* 1 stop bit */
+	line_coding[5] = 0; /* no parity */
+	line_coding[6] = 8; /* 8 data bits */
+
+	if (usb_control_msg(tr->handle, CDC_REQTYPE_HOST_TO_DEVICE,
+			    CDC_SET_LINE_CODING, 0, 0,
+			    (char *)line_coding, 7, 300) < 0) {
+		pr_error("cdc_acm: failed to set line coding\n");
+		return -1;
+	}
+
+	if (usb_control_msg(tr->handle, CDC_REQTYPE_HOST_TO_DEVICE,
+			    CDC_SET_CONTROL, 0, 0, NULL, 0, 300) < 0) {
+		pr_error("cdc_acm: failed to set modem control lines\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+transport_t cdc_acm_open(const char *devpath, const char *requested_serial,
+			 int baud_rate, uint16_t vendor, uint16_t product)
+{
+	struct cdc_acm_transport *tr = malloc(sizeof(*tr));
+	struct usb_device *dev;
+
+	if (!tr) {
+		pr_error(__FILE__": can't allocate memory");
+		return NULL;
+	}
+
+	tr->base.ops = &cdc_acm_class;
+
+	usb_init();
+	usb_find_busses();
+	usb_find_devices();
+
+	if (devpath)
+		dev = usbutil_find_by_loc(devpath);
+	else
+		dev = usbutil_find_by_id(vendor, product, requested_serial);
+
+	if (!dev) {
+		free(tr);
+		return NULL;
+	}
+
+	if (find_interface(tr, dev) < 0) {
+		printc_err(__FILE__ ": failed to locate CDC-ACM interface\n");
+		free(tr);
+		return NULL;
+	}
+
+	if (open_interface(tr, dev) < 0) {
+		printc_err(__FILE__": failed to open interface\n");
+		free(tr);
+		return NULL;
+	}
+
+	if (configure_port(tr, baud_rate) < 0) {
+		usb_release_interface(tr->handle, tr->int_number);
+		usb_close(tr->handle);
+		free(tr);
+		return NULL;
+	}
+
+	usbtr_flush(&tr->base);
+
+	return (transport_t)tr;
+}

transport/cdc_acm.h

@@ -1,5 +1,5 @@
 /* MSPDebug - debugging tool for MSP430 MCUs
- * Copyright (C) 2009, 2010 Daniel Beer
+ * Copyright (C) 2009-2012 Daniel Beer
  * Copyright (C) 2010 Peter Jansen
  *
  * This program is free software; you can redistribute it and/or modify
@@ -17,17 +17,17 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#ifndef OLIMEX_H_
+#ifndef CDC_ACM_H_
-#define OLIMEX_H_
+#define CDC_ACM_H_
 
 #include "transport.h"
 
-/* Search the USB bus for the first Olimex MSP-JTAG-TINY, and
+/* Search the USB bus for the first CDC-ACM device, and initialize it.
- * initialize it. If successful, 0 is returned and the fet_* functions
+ * If successful, return a valid transport object.
- * are ready for use.  If an error occurs, -1 is returned.
  *
  * A particular USB device may be specified in bus:dev form.
  */
-transport_t olimex_open(const char *usb_device, const char *requested_serial);
+transport_t cdc_acm_open(const char *usb_device, const char *requested_serial,
+			 int baud_rate, uint16_t product, uint16_t vendor);
 
 #endif

transport/cp210x.c

@@ -22,23 +22,16 @@
 #include <string.h>
 #include <usb.h>
 
-#include "olimex.h"
+#include "cp210x.h"
 #include "util.h"
 #include "usbutil.h"
 #include "output.h"
 
-struct olimex_transport {
+struct cp210x_transport {
 	struct transport        base;
 
-	int                     int_number;
 	struct usb_dev_handle   *handle;
-
+	int                     int_number;
-	int			in_ep;
-	int			out_ep;
-
-	uint8_t                 buf[64];
-	int                     len;
-	int                     offset;
 };
 
 /*********************************************************************
@@ -52,33 +45,37 @@ struct olimex_transport {
  * one transfer.
  */
 
-#define USB_FET_VENDOR			0x15ba
+#define CP210X_CLOCK			35000000
 
-#define V1_PRODUCT			0x0002
 #define V1_INTERFACE_CLASS		255
 #define V1_IN_EP			0x81
 #define V1_OUT_EP			0x01
 
-#define V2_PRODUCT			0x0031
-#define V2_INTERFACE_CLASS		10
-#define V2_IN_EP			0x82
-#define V2_OUT_EP			0x02
-
 #define CP210x_REQTYPE_HOST_TO_DEVICE   0x41
 
 #define CP210X_IFC_ENABLE               0x00
 #define CP210X_SET_BAUDDIV              0x01
 #define CP210X_SET_MHS                  0x07
 
+/* CP210X_(SET_MHS|GET_MDMSTS) */
+#define CP210X_DTR			0x0001
+#define CP210X_RTS			0x0002
+#define CP210X_CTS			0x0010
+#define CP210X_DSR			0x0020
+#define CP210X_RING			0x0040
+#define CP210X_DCD			0x0080
+#define CP210X_WRITE_DTR		0x0100
+#define CP210X_WRITE_RTS		0x0200
+
 #define TIMEOUT		                10000
 
-static int v1_configure(struct olimex_transport *tr)
+static int configure_port(struct cp210x_transport *tr, int baud_rate)
 {
 	int ret;
 
 	ret = usb_control_msg(tr->handle, CP210x_REQTYPE_HOST_TO_DEVICE,
 			      CP210X_IFC_ENABLE, 0x1, 0, NULL, 0, 300);
-#ifdef DEBUG_OLIMEX
+#ifdef DEBUG_CP210X
 	printc("%s: %s: Sending control message "
 		"CP210x_REQTYPE_HOST_TO_DEVICE, ret = %d\n",
 	       __FILE__, __FUNCTION__, ret);
@@ -90,8 +87,9 @@ static int v1_configure(struct olimex_transport *tr)
 
 	/* Set the baud rate to 500000 bps */
 	ret = usb_control_msg(tr->handle, CP210x_REQTYPE_HOST_TO_DEVICE,
-			      CP210X_SET_BAUDDIV, 0x7, 0, NULL, 0, 300);
+			      CP210X_SET_BAUDDIV, CP210X_CLOCK / baud_rate,
-#ifdef DEBUG_OLIMEX
+			      0, NULL, 0, 300);
+#ifdef DEBUG_CP210X
 	printc("%s: %s: Sending control message "
 		"CP210X_SET_BAUDDIV, ret = %d\n",
 	       __FILE__, __FUNCTION__, ret);
@@ -102,11 +100,11 @@ static int v1_configure(struct olimex_transport *tr)
 	}
 
 	/* Set the modem control settings.
-	 * Set RTS, DTR and WRITE_DTR, WRITE_RTS
+	 * Clear RTS, DTR and WRITE_DTR, WRITE_RTS
 	 */
 	ret = usb_control_msg(tr->handle, CP210x_REQTYPE_HOST_TO_DEVICE,
 			      CP210X_SET_MHS, 0x303, 0, NULL, 0, 300);
-#ifdef DEBUG_OLIMEX
+#ifdef DEBUG_CP210X
 	printc("%s: %s: Sending control message "
 		"CP210X_SET_MHS, ret %d\n",
 	       __FILE__, __FUNCTION__, ret);
@@ -119,8 +117,9 @@ static int v1_configure(struct olimex_transport *tr)
 	return 0;
 }
 
-static int open_interface(struct olimex_transport *tr,
+static int open_interface(struct cp210x_transport *tr,
-			  struct usb_device *dev, int ino)
+			  struct usb_device *dev, int ino,
+			  int baud_rate)
 {
 #if defined(__linux__)
 	int drv;
@@ -164,7 +163,7 @@ static int open_interface(struct olimex_transport *tr,
 		return -1;
 	}
 
-	if (dev->descriptor.idProduct == V1_PRODUCT && v1_configure(tr) < 0) {
+	if (configure_port(tr, baud_rate) < 0) {
 		printc_err("Failed to configure for V1 device\n");
 		usb_close(tr->handle);
 		return -1;
@@ -173,7 +172,8 @@ static int open_interface(struct olimex_transport *tr,
 	return 0;
 }
 
-static int open_device(struct olimex_transport *tr, struct usb_device *dev)
+static int open_device(struct cp210x_transport *tr, struct usb_device *dev,
+		       int baud_rate)
 {
 	struct usb_config_descriptor *c = &dev->config[0];
 	int i;
@@ -183,18 +183,9 @@ static int open_device(struct olimex_transport *tr, struct usb_device *dev)
 		struct usb_interface_descriptor *desc = &intf->altsetting[0];
 
 		if (desc->bInterfaceClass == V1_INTERFACE_CLASS &&
-		    !open_interface(tr, dev, desc->bInterfaceNumber)) {
+		    !open_interface(tr, dev, desc->bInterfaceNumber,
-			printc_dbg("olimex: rev 1 device\n");
+				    baud_rate))
-			tr->in_ep = V1_IN_EP;
-			tr->out_ep = V1_OUT_EP;
 			return 0;
-		} else if (desc->bInterfaceClass == V2_INTERFACE_CLASS &&
-			   !open_interface(tr, dev, desc->bInterfaceNumber)) {
-			printc_dbg("olimex: rev 2 device\n");
-			tr->in_ep = V2_IN_EP;
-			tr->out_ep = V2_OUT_EP;
-			return 0;
-		}
 	}
 
 	return -1;
@@ -202,14 +193,14 @@ static int open_device(struct olimex_transport *tr, struct usb_device *dev)
 
 static int usbtr_send(transport_t tr_base, const uint8_t *data, int len)
 {
-	struct olimex_transport *tr = (struct olimex_transport *)tr_base;
+	struct cp210x_transport *tr = (struct cp210x_transport *)tr_base;
 	int sent;
 
-#ifdef DEBUG_OLIMEX
+#ifdef DEBUG_CP210X
 	debug_hexdump(__FILE__ ": USB transfer out", data, len);
 #endif
 	while (len) {
-		sent = usb_bulk_write(tr->handle, tr->out_ep,
+		sent = usb_bulk_write(tr->handle, V1_OUT_EP,
 				      (char *)data, len, TIMEOUT);
 		if (sent <= 0) {
 			pr_error(__FILE__": can't send data");
@@ -225,17 +216,17 @@ static int usbtr_send(transport_t tr_base, const uint8_t *data, int len)
 
 static int usbtr_recv(transport_t tr_base, uint8_t *databuf, int max_len)
 {
-	struct olimex_transport *tr = (struct olimex_transport *)tr_base;
+	struct cp210x_transport *tr = (struct cp210x_transport *)tr_base;
 	int rlen;
 
-#ifdef DEBUG_OLIMEX
+#ifdef DEBUG_CP210X
 	printc(__FILE__": %s : read max %d\n", __FUNCTION__, max_len);
 #endif
 
-	rlen = usb_bulk_read(tr->handle, tr->in_ep, (char *)databuf,
+	rlen = usb_bulk_read(tr->handle, V1_IN_EP, (char *)databuf,
 			     max_len, TIMEOUT);
 
-#ifdef DEBUG_OLIMEX
+#ifdef DEBUG_CP210X
 	printc(__FILE__": %s : read %d\n", __FUNCTION__, rlen);
 #endif
 
@@ -244,7 +235,7 @@ static int usbtr_recv(transport_t tr_base, uint8_t *databuf, int max_len)
 		return -1;
 	}
 
-#ifdef DEBUG_OLIMEX
+#ifdef DEBUG_CP210X
 	debug_hexdump(__FILE__": USB transfer in", databuf, rlen);
 #endif
 
@@ -253,7 +244,7 @@ static int usbtr_recv(transport_t tr_base, uint8_t *databuf, int max_len)
 
 static void usbtr_destroy(transport_t tr_base)
 {
-	struct olimex_transport *tr = (struct olimex_transport *)tr_base;
+	struct cp210x_transport *tr = (struct cp210x_transport *)tr_base;
 
 	usb_release_interface(tr->handle, tr->int_number);
 	usb_close(tr->handle);
@@ -262,11 +253,11 @@ static void usbtr_destroy(transport_t tr_base)
 
 static int usbtr_flush(transport_t tr_base)
 {
-	struct olimex_transport *tr = (struct olimex_transport *)tr_base;
+	struct cp210x_transport *tr = (struct cp210x_transport *)tr_base;
 	char buf[64];
 
 	/* Flush out lingering data */
-	while (usb_bulk_read(tr->handle, tr->in_ep,
+	while (usb_bulk_read(tr->handle, V1_IN_EP,
 			     buf, sizeof(buf),
 			     100) > 0);
 
@@ -275,11 +266,25 @@ static int usbtr_flush(transport_t tr_base)
 
 static int usbtr_set_modem(transport_t tr_base, transport_modem_t state)
 {
-	printc_err("olimex: unsupported operation: set_modem\n");
+	struct cp210x_transport *tr = (struct cp210x_transport *)tr_base;
-	return -1;
+	int value = CP210X_WRITE_DTR | CP210X_WRITE_RTS;
+
+	/* DTR and RTS bits are active-low for this device */
+	if (!(state & TRANSPORT_MODEM_DTR))
+		value |= CP210X_DTR;
+	if (!(state & TRANSPORT_MODEM_RTS))
+		value |= CP210X_RTS;
+
+	if (usb_control_msg(tr->handle, CP210x_REQTYPE_HOST_TO_DEVICE,
+			    CP210X_SET_MHS, value, 0, NULL, 0, 300) < 0) {
+		pr_error("cp210x: failed to set modem control lines\n");
+		return -1;
+	}
+
+	return 0;
 }
 
-static const struct transport_class olimex_transport = {
+static const struct transport_class cp210x_class = {
 	.destroy	= usbtr_destroy,
 	.send		= usbtr_send,
 	.recv		= usbtr_recv,
@@ -287,9 +292,10 @@ static const struct transport_class olimex_transport = {
 	.set_modem	= usbtr_set_modem
 };
 
-transport_t olimex_open(const char *devpath, const char *requested_serial)
+transport_t cp210x_open(const char *devpath, const char *requested_serial,
+			int baud_rate, uint16_t product, uint16_t vendor)
 {
-	struct olimex_transport *tr = malloc(sizeof(*tr));
+	struct cp210x_transport *tr = malloc(sizeof(*tr));
 	struct usb_device *dev;
 
 	if (!tr) {
@@ -297,29 +303,25 @@ transport_t olimex_open(const char *devpath, const char *requested_serial)
 		return NULL;
 	}
 
-	tr->base.ops = &olimex_transport;
+	tr->base.ops = &cp210x_class;
 
 	usb_init();
 	usb_find_busses();
 	usb_find_devices();
 
-	if (devpath) {
+	if (devpath)
 		dev = usbutil_find_by_loc(devpath);
-	} else {
+	else
-		dev = usbutil_find_by_id(USB_FET_VENDOR, V1_PRODUCT,
+		dev = usbutil_find_by_id(product, vendor, requested_serial);
-					 requested_serial);
-		if (!dev)
-			dev = usbutil_find_by_id(USB_FET_VENDOR, V2_PRODUCT,
-						 requested_serial);
-	}
 
 	if (!dev) {
 		free(tr);
 		return NULL;
 	}
 
-	if (open_device(tr, dev) < 0) {
+	if (open_device(tr, dev, baud_rate) < 0) {
-		printc_err(__FILE__ ": failed to open Olimex device\n");
+		printc_err(__FILE__ ": failed to open CP210X device\n");
+		free(tr);
 		return NULL;
 	}
 

transport/cp210x.h

@@ -0,0 +1,33 @@
+/* MSPDebug - debugging tool for MSP430 MCUs
+ * Copyright (C) 2009-2012 Daniel Beer
+ * Copyright (C) 2010 Peter Jansen
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef CP210X_H_
+#define CP210X_H_
+
+#include "transport.h"
+
+/* Search the USB bus for the first CP210x device, and initialize it. If
+ * successful, a valid transport is returned.
+ *
+ * A particular USB device may be specified in bus:dev form.
+ */
+transport_t cp210x_open(const char *usb_device, const char *requested_serial,
+			int baud_rate, uint16_t product, uint16_t vendor);
+
+#endif

ui/main.c

@@ -48,7 +48,6 @@
 #include "gdbc.h"
 
 #include "uif.h"
-#include "olimex.h"
 #include "rf2500.h"
 #include "tilib.h"
 #include "goodfet.h"
@@ -64,6 +63,7 @@ static const struct device_class *const driver_table[] = {
 	&device_olimex,
 	&device_olimex_v1,
 	&device_olimex_iso,
+	&device_olimex_iso_mk2,
 	&device_sim,
 	&device_uif,
 	&device_bsl,