Hi,

attached patch adds probes like usbprog-jtag and usbvlab to opendous
driver. All these probes have similar protocol, but different endpoints,
vids, pids or buffer size.

This patch is tested against a modified version of usbprog-jtag.
usbprog-jtag-0.1.bin does not work with libusb1, since the descriptors
are broken. I will report this bug to usbprog team.

Stefan
From 36980c43de9feadcd2ed0715f9f9b021a049bfe8 Mon Sep 17 00:00:00 2001
From: Stefan Mahr <[email protected]>
Date: Tue, 5 Jun 2012 23:22:38 +0200
Subject: [PATCH] jtag: add support for some probes that are mostly compatible
 with opendous

This patch adds support for usbprog-jtag and usbvlab that are mostly compatible
to opendous except for IN and OUT endpoints and usb transfer mode.
---
 src/jtag/drivers/libusb1_common.c |   14 ++++
 src/jtag/drivers/libusb1_common.h |    3 +
 src/jtag/drivers/opendous.c       |  147 +++++++++++++++++++++++++++++++------
 3 files changed, 143 insertions(+), 21 deletions(-)

diff --git a/src/jtag/drivers/libusb1_common.c b/src/jtag/drivers/libusb1_common.c
index 194f737..7717043 100644
--- a/src/jtag/drivers/libusb1_common.c
+++ b/src/jtag/drivers/libusb1_common.c
@@ -79,6 +79,20 @@ void jtag_libusb_close(jtag_libusb_device_handle *dev)
 	libusb_exit(jtag_libusb_context);
 }
 
+int jtag_libusb_control_transfer(jtag_libusb_device_handle *dev, uint8_t requestType,
+		uint8_t request, uint16_t wValue, uint16_t wIndex, char *bytes,
+		uint16_t size, unsigned int timeout)
+{
+	int transferred = 0;
+
+	transferred = libusb_control_transfer(dev, requestType, request, wValue, wIndex,
+				(unsigned char *)bytes, size, timeout);
+
+	if (transferred<0) transferred = 0;
+
+	return transferred;
+}
+
 int jtag_libusb_bulk_write(jtag_libusb_device_handle *dev, int ep, char *bytes,
 		int size, int timeout)
 {
diff --git a/src/jtag/drivers/libusb1_common.h b/src/jtag/drivers/libusb1_common.h
index b38fe66..f0bf722 100644
--- a/src/jtag/drivers/libusb1_common.h
+++ b/src/jtag/drivers/libusb1_common.h
@@ -44,6 +44,9 @@ static inline int jtag_libusb_claim_interface(jtag_libusb_device_handle *devh,
 int jtag_libusb_open(const uint16_t vids[], const uint16_t pids[],
 		struct jtag_libusb_device_handle **out);
 void jtag_libusb_close(jtag_libusb_device_handle *dev);
+int jtag_libusb_control_transfer(jtag_libusb_device_handle *dev,
+		uint8_t requestType, uint8_t request, uint16_t wValue,
+		uint16_t wIndex, char *bytes,	uint16_t size, unsigned int timeout);
 int jtag_libusb_bulk_write(struct jtag_libusb_device_handle *dev, int ep,
 		char *bytes,	int size, int timeout);
 int jtag_libusb_bulk_read(struct jtag_libusb_device_handle *dev, int ep,
diff --git a/src/jtag/drivers/opendous.c b/src/jtag/drivers/opendous.c
index 0bb6da6..4e9799f 100644
--- a/src/jtag/drivers/opendous.c
+++ b/src/jtag/drivers/opendous.c
@@ -39,38 +39,52 @@
 #include <sys/timeb.h>
 #include <time.h>
 
-#define ESTICK_VID 0x1781
-#define ESTICK_PID 0xC0C0
 
-#define OPENDOUS_VID 0x03EB
-#define OPENDOUS_PID 0x204F
+#define OPENDOUS_MAX_VIDS_PIDS 4
+/* define some probes with similar interface */
+struct opendous_probe {
+	char *name;
+	uint16_t VID[OPENDOUS_MAX_VIDS_PIDS];
+	uint16_t PID[OPENDOUS_MAX_VIDS_PIDS];
+	uint8_t READ_EP;
+	uint8_t WRITE_EP;
+	uint8_t CONTROL_TRANSFER;
+	int BUFFERSIZE;
+};
 
-/* pid could be specified at runtime */
-static uint16_t vids[] = { OPENDOUS_VID, ESTICK_VID, 0 };
-static uint16_t pids[] = { OPENDOUS_PID, ESTICK_PID, 0 };
+static struct opendous_probe opendous_probes[] = {
+	{"usbprog-jtag",	{0x1781,0},			{0x0C63,0},			0x82, 0x02, 0x00, 510 },
+	{"opendous",		{0x1781,0x03EB, 0},	{0xC0C0,0x204F,0},	0x81, 0x02, 0x00, 360 },
+	{"usbvlab",			{0x16C0, 0},		{0x05DC,0},			0x81, 0x02, 0x01, 360 },
+	{NULL,				{0x0000},			{0x0000},			0x00, 0x00, 0x00,   0 }
+};
 
-#define OPENDOUS_WRITE_ENDPOINT   0x02
-#define OPENDOUS_READ_ENDPOINT    0x81
+#define OPENDOUS_WRITE_ENDPOINT   (opendous_probe->WRITE_EP)
+#define OPENDOUS_READ_ENDPOINT    (opendous_probe->READ_EP)
 
 static unsigned int opendous_hw_jtag_version = 1;
 
 #define OPENDOUS_USB_TIMEOUT      1000
 
-#define OPENDOUS_USB_BUFFER_SIZE  360
+#define OPENDOUS_USB_BUFFER_SIZE  (opendous_probe->BUFFERSIZE)
 #define OPENDOUS_IN_BUFFER_SIZE   (OPENDOUS_USB_BUFFER_SIZE)
 #define OPENDOUS_OUT_BUFFER_SIZE  (OPENDOUS_USB_BUFFER_SIZE)
 
+
 /* Global USB buffers */
-static uint8_t usb_in_buffer[OPENDOUS_IN_BUFFER_SIZE];
-static uint8_t usb_out_buffer[OPENDOUS_OUT_BUFFER_SIZE];
+static uint8_t *usb_in_buffer;
+static uint8_t *usb_out_buffer;
 
 /* Constants for OPENDOUS command */
 
 #define OPENDOUS_MAX_SPEED			66
-#define OPENDOUS_MAX_TAP_TRANSMIT	350	/* even number is easier to handle */
+#define OPENDOUS_MAX_TAP_TRANSMIT	((opendous_probe->BUFFERSIZE)-10)
 #define OPENDOUS_MAX_INPUT_DATA		(OPENDOUS_MAX_TAP_TRANSMIT*4)
 
+/* TAP */
 #define OPENDOUS_TAP_BUFFER_SIZE 65536
+static int pending_scan_results_length;
+static struct pending_scan_result *pending_scan_results_buffer;
 
 #define MAX_PENDING_SCAN_RESULTS (OPENDOUS_MAX_INPUT_DATA)
 
@@ -84,6 +98,14 @@ static uint8_t usb_out_buffer[OPENDOUS_OUT_BUFFER_SIZE];
 #define JTAG_CMD_SET_SRST_TRST	0x6
 #define JTAG_CMD_READ_CONFIG	0x7
 
+/* usbvlab control transfer */
+#define FUNC_START_BOOTLOADER 30
+#define FUNC_WRITE_DATA       0x50
+#define FUNC_READ_DATA        0x51
+
+static char *opendous_type;
+static struct opendous_probe *opendous_probe;
+
 /* External interface functions */
 static int opendous_execute_queue(void);
 static int opendous_speed(int speed);
@@ -135,6 +157,24 @@ static struct opendous_jtag *opendous_jtag_handle;
 /***************************************************************************/
 /* External interface implementation */
 
+
+COMMAND_HANDLER(opendous_handle_opendous_type_command)
+{
+	if (CMD_ARGC == 0)
+		return ERROR_OK;
+
+	/* only if the cable name wasn't overwritten by cmdline */
+	if (opendous_type == 0) {
+		/* REVISIT first verify that it's listed in cables[] ... */
+		opendous_type = malloc(strlen(CMD_ARGV[0]) + sizeof(char));
+		strcpy(opendous_type, CMD_ARGV[0]);
+	}
+
+	/* REVISIT it's probably worth returning the current value ... */
+
+	return ERROR_OK;
+}
+
 COMMAND_HANDLER(opendous_handle_opendous_info_command)
 {
 	if (opendous_get_version_info() == ERROR_OK) {
@@ -187,6 +227,13 @@ static const struct command_registration opendous_command_handlers[] = {
 		.help = "access opendous HW JTAG command version",
 		.usage = "[2|3]",
 	},
+	{
+		.name = "opendous_type",
+		.handler = &opendous_handle_opendous_type_command,
+		.mode = COMMAND_CONFIG,
+		.help = "set opendous type",
+		.usage = "[usbvlab|usbprog-jtag|opendous]",
+	},
 	COMMAND_REGISTRATION_DONE
 };
 
@@ -306,6 +353,33 @@ static int opendous_khz(int khz, int *jtag_speed)
 static int opendous_init(void)
 {
 	int check_cnt;
+	struct opendous_probe *cur_opendous_probe;
+
+	cur_opendous_probe = opendous_probes;
+
+	if (opendous_type == NULL) {
+		opendous_type = "opendous";
+		LOG_WARNING("No opendous_type specified, using default 'opendous'");
+	}
+
+	while (cur_opendous_probe->name) {
+		if (strcmp(cur_opendous_probe->name, opendous_type) == 0) {
+			opendous_probe = cur_opendous_probe;
+			break;
+		}
+		cur_opendous_probe++;
+	}
+
+	if (!opendous_probe) {
+		LOG_ERROR("No matching cable found for %s", opendous_type);
+		return ERROR_JTAG_INIT_FAILED;
+	}
+
+
+	usb_in_buffer = malloc(opendous_probe->BUFFERSIZE);
+	usb_out_buffer = malloc(opendous_probe->BUFFERSIZE);
+
+	pending_scan_results_buffer = malloc(MAX_PENDING_SCAN_RESULTS);
 
 	opendous_jtag_handle = opendous_usb_open();
 
@@ -336,6 +410,27 @@ static int opendous_init(void)
 static int opendous_quit(void)
 {
 	opendous_usb_close(opendous_jtag_handle);
+	
+	if (usb_out_buffer) {
+		free(usb_out_buffer);
+		usb_out_buffer = NULL;
+	}
+
+	if (usb_in_buffer) {
+		free(usb_in_buffer);
+		usb_in_buffer = NULL;
+	}
+	
+	if (pending_scan_results_buffer) {
+		free(pending_scan_results_buffer);
+		pending_scan_results_buffer = NULL;
+	}
+	
+	if (opendous_type) {
+		free(opendous_type);
+		opendous_type = NULL;
+	}
+	
 	return ERROR_OK;
 }
 
@@ -498,9 +593,6 @@ struct pending_scan_result {
 	uint8_t *buffer;
 };
 
-static int pending_scan_results_length;
-static struct pending_scan_result pending_scan_results_buffer[MAX_PENDING_SCAN_RESULTS];
-
 static int last_tms;
 
 void opendous_tap_init(void)
@@ -649,7 +741,7 @@ struct opendous_jtag *opendous_usb_open(void)
 	struct opendous_jtag *result;
 
 	struct jtag_libusb_device_handle *devh;
-	if (jtag_libusb_open(vids, pids, &devh) != ERROR_OK)
+	if (jtag_libusb_open(opendous_probe->VID, opendous_probe->PID, &devh) != ERROR_OK)
 		return NULL;
 
 	jtag_libusb_set_configuration(devh, 0);
@@ -699,8 +791,14 @@ int opendous_usb_write(struct opendous_jtag *opendous_jtag, int out_length)
 #ifdef _DEBUG_USB_COMMS_
 	LOG_DEBUG("%s: USB write begin", opendous_get_time(time_str));
 #endif
-	result = jtag_libusb_bulk_write(opendous_jtag->usb_handle, OPENDOUS_WRITE_ENDPOINT, \
-		(char *)usb_out_buffer, out_length, OPENDOUS_USB_TIMEOUT);
+	if (opendous_probe->CONTROL_TRANSFER) {
+		result = jtag_libusb_control_transfer(opendous_jtag->usb_handle, 
+			LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_OUT,
+			FUNC_WRITE_DATA, 0, 0, (char *) usb_out_buffer, out_length, OPENDOUS_USB_TIMEOUT);
+	} else {
+		result = jtag_libusb_bulk_write(opendous_jtag->usb_handle, OPENDOUS_WRITE_ENDPOINT, \
+			(char *)usb_out_buffer, out_length, OPENDOUS_USB_TIMEOUT);
+	}
 #ifdef _DEBUG_USB_COMMS_
 	LOG_DEBUG("%s: USB write end: %d bytes", opendous_get_time(time_str), result);
 #endif
@@ -719,8 +817,15 @@ int opendous_usb_read(struct opendous_jtag *opendous_jtag)
 #ifdef _DEBUG_USB_COMMS_
 	LOG_DEBUG("%s: USB read begin", opendous_get_time(time_str));
 #endif
-	int result = jtag_libusb_bulk_read(opendous_jtag->usb_handle, OPENDOUS_READ_ENDPOINT,
-		(char *)usb_in_buffer, OPENDOUS_IN_BUFFER_SIZE, OPENDOUS_USB_TIMEOUT);
+	int result;
+	if (opendous_probe->CONTROL_TRANSFER) {
+		result = jtag_libusb_control_transfer(opendous_jtag->usb_handle, 
+			LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN,
+			FUNC_READ_DATA, 0, 0, (char *) usb_in_buffer, OPENDOUS_IN_BUFFER_SIZE, OPENDOUS_USB_TIMEOUT);
+	} else {
+		result = jtag_libusb_bulk_read(opendous_jtag->usb_handle, OPENDOUS_READ_ENDPOINT,
+			(char *)usb_in_buffer, OPENDOUS_IN_BUFFER_SIZE, OPENDOUS_USB_TIMEOUT);
+	}
 #ifdef _DEBUG_USB_COMMS_
 	LOG_DEBUG("%s: USB read end: %d bytes", opendous_get_time(time_str), result);
 #endif
-- 
1.7.9.5

------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
OpenOCD-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/openocd-devel

Reply via email to