/***************************************************************************
- * Copyright (C) 2007 by Benedikt Sauter sauter@ixbat.de *
- * based on Dominic Rath's amt_jtagaccel.c *
- * *
- * usbprog is a free programming adapter. You can easily install *
- * different firmware versions from an "online pool" over USB. *
- * The adapter can be used for programming and debugging AVR and ARM *
- * processors, as USB to RS232 converter, as JTAG interface or as *
- * simple I/O interface (5 lines). *
- * *
- * http://www.embedded-projects.net/usbprog *
+ * Copyright (C) 2007 by Benedikt Sauter *
+ * sauter@ixbat.de *
* *
* 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 *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+/*
+ * This file is based on Dominic Rath's amt_jtagaccel.c.
+ *
+ * usbprog is a free programming adapter. You can easily install
+ * different firmware versions from an "online pool" over USB.
+ * The adapter can be used for programming and debugging AVR and ARM
+ * processors, as USB to RS232 converter, as JTAG interface or as
+ * simple I/O interface (5 lines).
+ *
+ * http://www.embedded-projects.net/usbprog
+ */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
void usbprog_runtest(int num_cycles);
void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size);
-jtag_interface_t usbprog_interface =
+jtag_interface_t usbprog_interface =
{
.name = "usbprog",
.execute_queue = usbprog_execute_queue,
- .support_pathmove = 0,
- .speed = usbprog_speed,
+ .speed = usbprog_speed,
.register_commands = usbprog_register_commands,
.init = usbprog_init,
.quit = usbprog_quit
#define WRITE_TMS 0x09
#define WRITE_TMS_CHAIN 0x0A
-struct usbprog_jtag
+struct usbprog_jtag
{
struct usb_dev_handle* usb_handle;
};
int scan_size;
enum scan_type type;
u8 *buffer;
-
+
while (cmd)
{
switch (cmd->type)
break;
case JTAG_PATHMOVE:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states,
+ DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states,
cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
#endif
usbprog_path_move(cmd->cmd.pathmove);
ERROR("BUG: unknown JTAG command type encountered");
exit(-1);
}
-
+
cmd = cmd->next;
}
-
+
return ERROR_OK;
}
int usbprog_init(void)
{
usbprog_jtag_handle = usbprog_jtag_open();
-
+
tms_chain_index = 0;
if (usbprog_jtag_handle == 0)
{
ERROR("Can't find USB JTAG Interface! Please check connection and permissions.");
return ERROR_JTAG_INIT_FAILED;
}
-
+
INFO("USB JTAG Interface ready!");
-
+
usbprog_jtag_init(usbprog_jtag_handle);
usbprog_reset(0, 0);
usbprog_write(0, 0, 0);
-
+
return ERROR_OK;
}
}
void usbprog_state_move(void)
-{
+{
int i = 0, tms = 0;
u8 tms_scan = TAP_MOVE(cur_state, end_state);
-
+
usbprog_jtag_write_tms(usbprog_jtag_handle, (char)tms_scan);
for (i = 0; i < 7; i++)
{
tms = (tms_scan >> i) & 1;
}
-
+
cur_state = end_state;
}
{
int num_states = cmd->num_states;
int state_count;
-
+
state_count = 0;
while (num_states)
{
if (tap_transitions[cur_state].low == cmd->path[state_count])
{
- //INFO("1");
+ /* INFO("1"); */
usbprog_write(0, 0, 0);
usbprog_write(1, 0, 0);
}
else if (tap_transitions[cur_state].high == cmd->path[state_count])
{
- //INFO("2");
+ /* INFO("2"); */
usbprog_write(0, 1, 0);
usbprog_write(1, 1, 0);
}
ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);
exit(-1);
}
-
+
cur_state = cmd->path[state_count];
state_count++;
num_states--;
}
-
+
end_state = cur_state;
}
void usbprog_runtest(int num_cycles)
{
int i;
-
+
/* only do a state_move when we're not already in RTI */
if (cur_state != TAP_RTI)
{
usbprog_end_state(TAP_RTI);
usbprog_state_move();
}
-
+
/* execute num_cycles */
if (num_cycles > 0)
{
else
{
usbprog_jtag_tms_send(usbprog_jtag_handle);
- //INFO("NUM CYCLES %i",num_cycles);
+ /* INFO("NUM CYCLES %i",num_cycles); */
}
-
+
for (i = 0; i < num_cycles; i++)
{
usbprog_write(1, 0, 0);
usbprog_write(0, 0, 0);
}
-
+
/* finish in end_state */
/*
usbprog_end_state(saved_end_state);
void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
{
enum tap_state saved_end_state = end_state;
-
+
if (ir_scan)
usbprog_end_state(TAP_SI);
else
usbprog_end_state(TAP_SD);
-
- //usbprog_jtag_tms_send(usbprog_jtag_handle);
-
+
+ /* usbprog_jtag_tms_send(usbprog_jtag_handle); */
+
usbprog_state_move();
usbprog_end_state(saved_end_state);
-
+
usbprog_jtag_tms_send(usbprog_jtag_handle);
-
+
if (type == SCAN_OUT)
{
usbprog_jtag_write_tdi(usbprog_jtag_handle,buffer, scan_size);
{
usbprog_jtag_write_and_read(usbprog_jtag_handle,buffer, scan_size);
}
-
+
if (ir_scan)
cur_state = TAP_PI;
else
cur_state = TAP_PD;
-
+
if (cur_state != end_state)
usbprog_state_move();
}
void usbprog_write(int tck, int tms, int tdi)
{
unsigned char output_value=0x00;
-
+
if (tms)
output_value |= (1<<TMS_BIT);
if (tdi)
output_value |= (1<<TDI_BIT);
if (tck)
output_value |= (1<<TCK_BIT);
-
+
usbprog_jtag_write_slice(usbprog_jtag_handle,output_value);
}
void usbprog_reset(int trst, int srst)
{
DEBUG("trst: %i, srst: %i", trst, srst);
-
+
if (trst)
usbprog_jtag_set_bit(usbprog_jtag_handle, 5, 0);
else
usbprog_jtag_set_bit(usbprog_jtag_handle, 5, 1);
-
+
if (srst)
usbprog_jtag_set_bit(usbprog_jtag_handle, 4, 0);
else
{
struct usb_bus *bus;
struct usb_device *dev;
-
+
struct usbprog_jtag *tmp;
-
+
tmp = (struct usbprog_jtag*)malloc(sizeof(struct usbprog_jtag));
-
- usb_set_debug(10);
+
+ usb_set_debug(10);
usb_init();
usb_find_busses();
usb_find_devices();
-
+
busses = usb_get_busses();
-
+
/* find usbprog_jtag device in usb bus */
-
+
for (bus = busses; bus; bus = bus->next)
{
for (dev = bus->devices; dev; dev = dev->next)
usb_set_altinterface(tmp->usb_handle, 0);
return tmp;
}
- }
+ }
}
return 0;
}
int res = usb_bulk_write(usbprog_jtag->usb_handle, 3, msg,msglen, 100);
if ((msg[0] == 2) || (msg[0] == 1) || (msg[0] == 4) || (msg[0] == 0) || \
(msg[0] == 6) || (msg[0] == 0x0A) || (msg[0] == 9))
- return 1;
+ return 1;
if (res == msglen)
{
- //INFO("HALLLLOOO %i",(int)msg[0]);
+ /* INFO("HALLLLOOO %i",(int)msg[0]); */
res = usb_bulk_read(usbprog_jtag->usb_handle, 0x82, msg, 2, 100);
if (res > 0)
return (unsigned char)msg[1];
- else
+ else
return -1;
}
else
void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size)
{
- char tmp[64]; // fastes packet size for usb controller
+ char tmp[64]; /* fastes packet size for usb controller */
int send_bits, bufindex = 0, fillindex = 0, i, loops;
-
+
char swap;
- // 61 byte can be transfered (488 bit)
-
+ /* 61 byte can be transfered (488 bit) */
+
while (size > 0)
- {
+ {
if (size > 488)
{
send_bits = 488;
size = 0;
}
tmp[0] = WRITE_AND_READ;
- tmp[1] = (char)(send_bits >> 8); // high
- tmp[2] = (char)(send_bits); // low
- i = 0;
-
+ tmp[1] = (char)(send_bits >> 8); /* high */
+ tmp[2] = (char)(send_bits); /* low */
+ i = 0;
+
for (i = 0; i < loops; i++)
{
tmp[3 + i] = buffer[bufindex];
bufindex++;
}
-
+
if (usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 64, 1000) == 64)
{
- //INFO("HALLLLOOO2 %i",(int)tmp[0]);
+ /* INFO("HALLLLOOO2 %i",(int)tmp[0]); */
usleep(1);
int timeout = 0;
while (usb_bulk_read(usbprog_jtag->usb_handle, 0x82, tmp, 64, 1000) < 1)
timeout++;
if (timeout > 10)
break;
- }
-
+ }
+
for (i = 0; i < loops; i++)
{
swap = tmp[3 + i];
buffer[fillindex++] = swap;
- }
+ }
}
}
}
void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char * buffer, int size)
{
- char tmp[64]; // fastes packet size for usb controller
+ char tmp[64]; /* fastes packet size for usb controller */
int send_bits, fillindex = 0, i, loops;
char swap;
- // 61 byte can be transfered (488 bit)
-
+ /* 61 byte can be transfered (488 bit) */
+
while (size > 0)
- {
+ {
if (size > 488)
{
send_bits = 488;
size = 0;
}
tmp[0] = WRITE_AND_READ;
- tmp[1] = (char)(send_bits >> 8); // high
- tmp[2] = (char)(send_bits); // low
-
+ tmp[1] = (char)(send_bits >> 8); /* high */
+ tmp[2] = (char)(send_bits); /* low */
+
usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 3, 1000);
-
- //INFO("HALLLLOOO3 %i",(int)tmp[0]);
+
+ /* INFO("HALLLLOOO3 %i",(int)tmp[0]); */
int timeout = 0;
usleep(1);
while (usb_bulk_read(usbprog_jtag->usb_handle, 0x82, tmp, 64, 10) < 1)
{
swap = tmp[3 + i];
buffer[fillindex++] = swap;
- }
+ }
}
}
void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, int size)
{
- char tmp[64]; // fastes packet size for usb controller
+ char tmp[64]; /* fastes packet size for usb controller */
int send_bits, bufindex = 0, i, loops;
- // 61 byte can be transfered (488 bit)
+ /* 61 byte can be transfered (488 bit) */
while (size > 0)
{
if (size > 488)
{
send_bits = size;
loops = size/8;
- //if(loops==0)
+ /* if(loops==0) */
loops++;
size = 0;
}
tmp[0] = WRITE_TDI;
- tmp[1] = (char)(send_bits >> 8); // high
- tmp[2] = (char)(send_bits); // low
- i = 0;
-
+ tmp[1] = (char)(send_bits >> 8); /* high */
+ tmp[2] = (char)(send_bits); /* low */
+ i = 0;
+
for (i = 0; i < loops; i++)
{
tmp[3 + i] = buffer[bufindex];
char tmp[3];
tmp[0] = PORT_SETBIT;
tmp[1] = (char)bit;
- if (value == 1)
+ if (value == 1)
tmp[2] = 0x01;
else
tmp[2] = 0x00;
char tmp[2];
tmp[0] = PORT_GETBIT;
tmp[1] = (char)bit;
-
+
if (usbprog_jtag_message(usbprog_jtag, tmp, 2) > 0)
return 1;
else
void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag)
{
int i;
- //INFO("TMS SEND");
+ /* INFO("TMS SEND"); */
if (tms_chain_index > 0)
{
char tmp[tms_chain_index + 2];
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