-/***************************************************************************
- * 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 *
- * *
- * 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. *
- ***************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "replacements.h"
-
-#include "jtag.h"
-#include <usb.h>
-
-/* system includes */
-
-#include "log.h"
-
-#define VID 0x1781
-#define PID 0x0c63
-
-/* Pins at usbprog */
-#define TDO_BIT 0
-#define TDI_BIT 3
-#define TCK_BIT 2
-#define TMS_BIT 1
-
-int usbprog_execute_queue(void);
-int usbprog_speed(int speed);
-int usbprog_register_commands(struct command_context_s *cmd_ctx);
-int usbprog_init(void);
-int usbprog_quit(void);
-
-void usbprog_end_state(enum tap_state state);
-void usbprog_state_move(void);
-void usbprog_path_move(pathmove_command_t *cmd);
-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 =
-{
- .name = "usbprog",
- .execute_queue = usbprog_execute_queue,
- .speed = usbprog_speed,
- .register_commands = usbprog_register_commands,
- .init = usbprog_init,
- .quit = usbprog_quit
-};
-
-#define UNKOWN_COMMAND 0x00
-#define PORT_DIRECTION 0x01
-#define PORT_SET 0x02
-#define PORT_GET 0x03
-#define PORT_SETBIT 0x04
-#define PORT_GETBIT 0x05
-#define WRITE_TDI 0x06
-#define READ_TDO 0x07
-#define WRITE_AND_READ 0x08
-#define WRITE_TMS 0x09
-#define WRITE_TMS_CHAIN 0x0A
-
-struct usbprog_jtag
-{
- struct usb_dev_handle* usb_handle;
-};
-
-struct usbprog_jtag * usbprog_jtag_handle;
-
-struct usbprog_jtag* usbprog_jtag_open();
-void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag);
-void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag);
-unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen);
-
-void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char * buffer, int size);
-void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, int size);
-void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size);
-void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan);
-
-char tms_chain[64];
-int tms_chain_index;
-void usbprog_jtag_tms_collect(char tms_scan);
-void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag);
-
-void usbprog_write(int tck, int tms, int tdi);
-void usbprog_reset(int trst, int srst);
-
-void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction);
-void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag,unsigned char value);
-unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag);
-void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag,int bit, int value);
-int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit);
-
-int usbprog_speed(int speed)
-{
- return ERROR_OK;
-}
-
-int usbprog_register_commands(struct command_context_s *cmd_ctx)
-{
- return ERROR_OK;
-}
-
-int usbprog_execute_queue(void)
-{
- jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
- int scan_size;
- enum scan_type type;
- u8 *buffer;
-
- while (cmd)
- {
- switch (cmd->type)
- {
- case JTAG_END_STATE:
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("end_state: %i", cmd->cmd.end_state->end_state);
-#endif
- if (cmd->cmd.end_state->end_state != -1)
- usbprog_end_state(cmd->cmd.end_state->end_state);
- break;
- case JTAG_RESET:
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
-#endif
- if (cmd->cmd.reset->trst == 1)
- {
- cur_state = TAP_TLR;
- }
- usbprog_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
- break;
- case JTAG_RUNTEST:
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state);
-#endif
- if (cmd->cmd.runtest->end_state != -1)
- usbprog_end_state(cmd->cmd.runtest->end_state);
- usbprog_runtest(cmd->cmd.runtest->num_cycles);
- break;
- case JTAG_STATEMOVE:
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);
-#endif
- if (cmd->cmd.statemove->end_state != -1)
- usbprog_end_state(cmd->cmd.statemove->end_state);
- usbprog_state_move();
- break;
- case JTAG_PATHMOVE:
-#ifdef _DEBUG_JTAG_IO_
- 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);
- break;
- case JTAG_SCAN:
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("scan end in %i", cmd->cmd.scan->end_state);
-#endif
- if (cmd->cmd.scan->end_state != -1)
- usbprog_end_state(cmd->cmd.scan->end_state);
- scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
- type = jtag_scan_type(cmd->cmd.scan);
- usbprog_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
- if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
- return ERROR_JTAG_QUEUE_FAILED;
- if (buffer)
- free(buffer);
- break;
- case JTAG_SLEEP:
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("sleep %i", cmd->cmd.sleep->us);
-#endif
- jtag_sleep(cmd->cmd.sleep->us);
- break;
- default:
- 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;
-}
-
-int usbprog_quit(void)
-{
- return ERROR_OK;
-}
-
-/*************** jtag execute commands **********************/
-void usbprog_end_state(enum tap_state state)
-{
- if (tap_move_map[state] != -1)
- end_state = state;
- else
- {
- ERROR("BUG: %i is not a valid end state", state);
- exit(-1);
- }
-}
-
-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;
-}
-
-void usbprog_path_move(pathmove_command_t *cmd)
-{
- 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");
- usbprog_write(0, 0, 0);
- usbprog_write(1, 0, 0);
- }
- else if (tap_transitions[cur_state].high == cmd->path[state_count])
- {
- //INFO("2");
- usbprog_write(0, 1, 0);
- usbprog_write(1, 1, 0);
- }
- else
- {
- 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)
- {
- usbprog_jtag_tms_send(usbprog_jtag_handle);
- usbprog_write(0, 0, 0);
- }
- else
- {
- usbprog_jtag_tms_send(usbprog_jtag_handle);
- //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);
- if (cur_state != end_state)
- usbprog_state_move();
- */
-}
-
-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_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);
- }
- if (type == SCAN_IN)
- {
- usbprog_jtag_read_tdo(usbprog_jtag_handle,buffer, scan_size);
- }
- if (type == SCAN_IO)
- {
- 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();
-}
-
-/*************** jtag wrapper functions *********************/
-
-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);
-}
-
-/* (1) assert or (0) deassert reset lines */
-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
- usbprog_jtag_set_bit(usbprog_jtag_handle, 4, 1);
-}
-
-/*************** jtag lowlevel functions ********************/
-
-struct usb_bus *busses;
-
-struct usbprog_jtag* usbprog_jtag_open()
-{
- 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_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)
- {
- /* condition for sucessfully hit (too bad, I only check the vendor id)*/
- if (dev->descriptor.idVendor == VID && dev->descriptor.idProduct == PID)
- {
- tmp->usb_handle = usb_open(dev);
- usb_set_configuration(tmp->usb_handle, 1);
- usb_claim_interface(tmp->usb_handle, 0);
- usb_set_altinterface(tmp->usb_handle, 0);
- return tmp;
- }
- }
- }
- return 0;
-}
-
-void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag)
-{
- usb_close(usbprog_jtag->usb_handle);
- free(usbprog_jtag);
-}
-
-unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen)
-{
- 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;
- if (res == msglen)
- {
- //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
- return -1;
- }
- else
- return -1;
- return 0;
-}
-
-void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag)
-{
- usbprog_jtag_set_direction(usbprog_jtag, 0xFE);
-}
-
-void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size)
-{
- 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)
-
- while (size > 0)
- {
- if (size > 488)
- {
- send_bits = 488;
- size = size - 488;
- loops = 61;
- }
- else
- {
- send_bits = size;
- loops = size / 8;
- loops++;
- size = 0;
- }
- tmp[0] = WRITE_AND_READ;
- 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]);
- 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
- int send_bits, fillindex = 0, i, loops;
-
- char swap;
- // 61 byte can be transfered (488 bit)
-
- while (size > 0)
- {
- if (size > 488)
- {
- send_bits = 488;
- size = size - 488;
- loops = 61;
- }
- else
- {
- send_bits = size;
- loops = size / 8;
- loops++;
- size = 0;
- }
- tmp[0] = WRITE_AND_READ;
- 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]);
- int timeout = 0;
- usleep(1);
- while (usb_bulk_read(usbprog_jtag->usb_handle, 0x82, tmp, 64, 10) < 1)
- {
- timeout++;
- if (timeout > 10)
- break;
- }
-
- for (i = 0; i < loops; i++)
- {
- 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
- int send_bits, bufindex = 0, i, loops;
-
- // 61 byte can be transfered (488 bit)
- while (size > 0)
- {
- if (size > 488)
- {
- send_bits = 488;
- size = size - 488;
- loops = 61;
- }
- else
- {
- send_bits = size;
- loops = size/8;
- //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;
-
- for (i = 0; i < loops; i++)
- {
- tmp[3 + i] = buffer[bufindex];
- bufindex++;
- }
- usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 64, 1000);
- }
-}
-
-void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan)
-{
- usbprog_jtag_tms_collect(tms_scan);
-}
-
-void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction)
-{
- char tmp[2];
- tmp[0] = PORT_DIRECTION;
- tmp[1] = (char)direction;
- usbprog_jtag_message(usbprog_jtag, tmp, 2);
-}
-
-void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag,unsigned char value)
-{
- char tmp[2];
- tmp[0] = PORT_SET;
- tmp[1] = (char)value;
- usbprog_jtag_message(usbprog_jtag, tmp, 2);
-}
-
-unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag)
-{
- char tmp[2];
- tmp[0] = PORT_GET;
- tmp[1] = 0x00;
- return usbprog_jtag_message(usbprog_jtag, tmp, 2);
-}
-
-void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag,int bit, int value)
-{
- char tmp[3];
- tmp[0] = PORT_SETBIT;
- tmp[1] = (char)bit;
- if (value == 1)
- tmp[2] = 0x01;
- else
- tmp[2] = 0x00;
- usbprog_jtag_message(usbprog_jtag, tmp, 3);
-}
-
-int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit)
-{
- char tmp[2];
- tmp[0] = PORT_GETBIT;
- tmp[1] = (char)bit;
-
- if (usbprog_jtag_message(usbprog_jtag, tmp, 2) > 0)
- return 1;
- else
- return 0;
-}
-
-void usbprog_jtag_tms_collect(char tms_scan)
-{
- tms_chain[tms_chain_index] = tms_scan;
- tms_chain_index++;
-}
-
-void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag)
-{
- int i;
- //INFO("TMS SEND");
- if (tms_chain_index > 0)
- {
- char tmp[tms_chain_index + 2];
- tmp[0] = WRITE_TMS_CHAIN;
- tmp[1] = (char)(tms_chain_index);
- for (i = 0; i < tms_chain_index + 1; i++)
- tmp[2 + i] = tms_chain[i];
- usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, tms_chain_index + 2, 1000);
- tms_chain_index = 0;
- }
-}
+/***************************************************************************\r
+ * Copyright (C) 2007 by Benedikt Sauter sauter@ixbat.de *\r
+ * based on Dominic Rath's amt_jtagaccel.c *\r
+ * *\r
+ * usbprog is a free programming adapter. You can easily install *\r
+ * different firmware versions from an "online pool" over USB. *\r
+ * The adapter can be used for programming and debugging AVR and ARM *\r
+ * processors, as USB to RS232 converter, as JTAG interface or as *\r
+ * simple I/O interface (5 lines). *\r
+ * *\r
+ * http://www.embedded-projects.net/usbprog *\r
+ * *\r
+ * This program is free software; you can redistribute it and/or modify *\r
+ * it under the terms of the GNU General Public License as published by *\r
+ * the Free Software Foundation; either version 2 of the License, or *\r
+ * (at your option) any later version. *\r
+ * *\r
+ * This program is distributed in the hope that it will be useful, *\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *\r
+ * GNU General Public License for more details. *\r
+ * *\r
+ * You should have received a copy of the GNU General Public License *\r
+ * along with this program; if not, write to the *\r
+ * Free Software Foundation, Inc., *\r
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *\r
+ ***************************************************************************/\r
+#ifdef HAVE_CONFIG_H\r
+#include "config.h"\r
+#endif\r
+\r
+#include "replacements.h"\r
+\r
+#include "jtag.h"\r
+#include <usb.h>\r
+\r
+/* system includes */\r
+\r
+#include "log.h"\r
+\r
+#define VID 0x1781\r
+#define PID 0x0c63\r
+\r
+/* Pins at usbprog */\r
+#define TDO_BIT 0\r
+#define TDI_BIT 3\r
+#define TCK_BIT 2\r
+#define TMS_BIT 1\r
+\r
+int usbprog_execute_queue(void);\r
+int usbprog_speed(int speed);\r
+int usbprog_register_commands(struct command_context_s *cmd_ctx);\r
+int usbprog_init(void);\r
+int usbprog_quit(void);\r
+\r
+void usbprog_end_state(enum tap_state state);\r
+void usbprog_state_move(void);\r
+void usbprog_path_move(pathmove_command_t *cmd);\r
+void usbprog_runtest(int num_cycles);\r
+void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size);\r
+\r
+jtag_interface_t usbprog_interface =\r
+{\r
+ .name = "usbprog",\r
+ .execute_queue = usbprog_execute_queue,\r
+ .speed = usbprog_speed,\r
+ .register_commands = usbprog_register_commands,\r
+ .init = usbprog_init,\r
+ .quit = usbprog_quit\r
+};\r
+\r
+#define UNKOWN_COMMAND 0x00\r
+#define PORT_DIRECTION 0x01\r
+#define PORT_SET 0x02\r
+#define PORT_GET 0x03\r
+#define PORT_SETBIT 0x04\r
+#define PORT_GETBIT 0x05\r
+#define WRITE_TDI 0x06\r
+#define READ_TDO 0x07\r
+#define WRITE_AND_READ 0x08\r
+#define WRITE_TMS 0x09\r
+#define WRITE_TMS_CHAIN 0x0A\r
+\r
+struct usbprog_jtag\r
+{\r
+ struct usb_dev_handle* usb_handle;\r
+};\r
+\r
+struct usbprog_jtag * usbprog_jtag_handle;\r
+\r
+struct usbprog_jtag* usbprog_jtag_open();\r
+void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag);\r
+void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag);\r
+unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen);\r
+\r
+void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char * buffer, int size);\r
+void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, int size);\r
+void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size);\r
+void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan);\r
+\r
+char tms_chain[64];\r
+int tms_chain_index;\r
+void usbprog_jtag_tms_collect(char tms_scan);\r
+void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag);\r
+\r
+void usbprog_write(int tck, int tms, int tdi);\r
+void usbprog_reset(int trst, int srst);\r
+\r
+void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction);\r
+void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag,unsigned char value);\r
+unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag);\r
+void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag,int bit, int value);\r
+int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit);\r
+\r
+int usbprog_speed(int speed)\r
+{\r
+ return ERROR_OK;\r
+}\r
+\r
+int usbprog_register_commands(struct command_context_s *cmd_ctx)\r
+{\r
+ return ERROR_OK;\r
+}\r
+\r
+int usbprog_execute_queue(void)\r
+{\r
+ jtag_command_t *cmd = jtag_command_queue; /* currently processed command */\r
+ int scan_size;\r
+ enum scan_type type;\r
+ u8 *buffer;\r
+\r
+ while (cmd)\r
+ {\r
+ switch (cmd->type)\r
+ {\r
+ case JTAG_END_STATE:\r
+#ifdef _DEBUG_JTAG_IO_\r
+ DEBUG("end_state: %i", cmd->cmd.end_state->end_state);\r
+#endif\r
+ if (cmd->cmd.end_state->end_state != -1)\r
+ usbprog_end_state(cmd->cmd.end_state->end_state);\r
+ break;\r
+ case JTAG_RESET:\r
+#ifdef _DEBUG_JTAG_IO_\r
+ DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);\r
+#endif\r
+ if (cmd->cmd.reset->trst == 1)\r
+ {\r
+ cur_state = TAP_TLR;\r
+ }\r
+ usbprog_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);\r
+ break;\r
+ case JTAG_RUNTEST:\r
+#ifdef _DEBUG_JTAG_IO_\r
+ DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state);\r
+#endif\r
+ if (cmd->cmd.runtest->end_state != -1)\r
+ usbprog_end_state(cmd->cmd.runtest->end_state);\r
+ usbprog_runtest(cmd->cmd.runtest->num_cycles);\r
+ break;\r
+ case JTAG_STATEMOVE:\r
+#ifdef _DEBUG_JTAG_IO_\r
+ DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);\r
+#endif\r
+ if (cmd->cmd.statemove->end_state != -1)\r
+ usbprog_end_state(cmd->cmd.statemove->end_state);\r
+ usbprog_state_move();\r
+ break;\r
+ case JTAG_PATHMOVE:\r
+#ifdef _DEBUG_JTAG_IO_\r
+ DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states,\r
+ cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);\r
+#endif\r
+ usbprog_path_move(cmd->cmd.pathmove);\r
+ break;\r
+ case JTAG_SCAN:\r
+#ifdef _DEBUG_JTAG_IO_\r
+ DEBUG("scan end in %i", cmd->cmd.scan->end_state);\r
+#endif\r
+ if (cmd->cmd.scan->end_state != -1)\r
+ usbprog_end_state(cmd->cmd.scan->end_state);\r
+ scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);\r
+ type = jtag_scan_type(cmd->cmd.scan);\r
+ usbprog_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);\r
+ if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)\r
+ return ERROR_JTAG_QUEUE_FAILED;\r
+ if (buffer)\r
+ free(buffer);\r
+ break;\r
+ case JTAG_SLEEP:\r
+#ifdef _DEBUG_JTAG_IO_\r
+ DEBUG("sleep %i", cmd->cmd.sleep->us);\r
+#endif\r
+ jtag_sleep(cmd->cmd.sleep->us);\r
+ break;\r
+ default:\r
+ ERROR("BUG: unknown JTAG command type encountered");\r
+ exit(-1);\r
+ }\r
+\r
+ cmd = cmd->next;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int usbprog_init(void)\r
+{\r
+ usbprog_jtag_handle = usbprog_jtag_open();\r
+\r
+ tms_chain_index = 0;\r
+ if (usbprog_jtag_handle == 0)\r
+ {\r
+ ERROR("Can't find USB JTAG Interface! Please check connection and permissions.");\r
+ return ERROR_JTAG_INIT_FAILED;\r
+ }\r
+\r
+ INFO("USB JTAG Interface ready!");\r
+\r
+ usbprog_jtag_init(usbprog_jtag_handle);\r
+ usbprog_reset(0, 0);\r
+ usbprog_write(0, 0, 0);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int usbprog_quit(void)\r
+{\r
+ return ERROR_OK;\r
+}\r
+\r
+/*************** jtag execute commands **********************/\r
+void usbprog_end_state(enum tap_state state)\r
+{\r
+ if (tap_move_map[state] != -1)\r
+ end_state = state;\r
+ else\r
+ {\r
+ ERROR("BUG: %i is not a valid end state", state);\r
+ exit(-1);\r
+ }\r
+}\r
+\r
+void usbprog_state_move(void)\r
+{\r
+ int i = 0, tms = 0;\r
+ u8 tms_scan = TAP_MOVE(cur_state, end_state);\r
+\r
+ usbprog_jtag_write_tms(usbprog_jtag_handle, (char)tms_scan);\r
+ for (i = 0; i < 7; i++)\r
+ {\r
+ tms = (tms_scan >> i) & 1;\r
+ }\r
+\r
+ cur_state = end_state;\r
+}\r
+\r
+void usbprog_path_move(pathmove_command_t *cmd)\r
+{\r
+ int num_states = cmd->num_states;\r
+ int state_count;\r
+\r
+ state_count = 0;\r
+ while (num_states)\r
+ {\r
+ if (tap_transitions[cur_state].low == cmd->path[state_count])\r
+ {\r
+ //INFO("1");\r
+ usbprog_write(0, 0, 0);\r
+ usbprog_write(1, 0, 0);\r
+ }\r
+ else if (tap_transitions[cur_state].high == cmd->path[state_count])\r
+ {\r
+ //INFO("2");\r
+ usbprog_write(0, 1, 0);\r
+ usbprog_write(1, 1, 0);\r
+ }\r
+ else\r
+ {\r
+ ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);\r
+ exit(-1);\r
+ }\r
+\r
+ cur_state = cmd->path[state_count];\r
+ state_count++;\r
+ num_states--;\r
+ }\r
+\r
+ end_state = cur_state;\r
+}\r
+\r
+void usbprog_runtest(int num_cycles)\r
+{\r
+ int i;\r
+\r
+ /* only do a state_move when we're not already in RTI */\r
+ if (cur_state != TAP_RTI)\r
+ {\r
+ usbprog_end_state(TAP_RTI);\r
+ usbprog_state_move();\r
+ }\r
+\r
+ /* execute num_cycles */\r
+ if (num_cycles > 0)\r
+ {\r
+ usbprog_jtag_tms_send(usbprog_jtag_handle);\r
+ usbprog_write(0, 0, 0);\r
+ }\r
+ else\r
+ {\r
+ usbprog_jtag_tms_send(usbprog_jtag_handle);\r
+ //INFO("NUM CYCLES %i",num_cycles);\r
+ }\r
+\r
+ for (i = 0; i < num_cycles; i++)\r
+ {\r
+ usbprog_write(1, 0, 0);\r
+ usbprog_write(0, 0, 0);\r
+ }\r
+\r
+ /* finish in end_state */\r
+ /*\r
+ usbprog_end_state(saved_end_state);\r
+ if (cur_state != end_state)\r
+ usbprog_state_move();\r
+ */\r
+}\r
+\r
+void usbprog_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)\r
+{\r
+ enum tap_state saved_end_state = end_state;\r
+\r
+ if (ir_scan)\r
+ usbprog_end_state(TAP_SI);\r
+ else\r
+ usbprog_end_state(TAP_SD);\r
+\r
+ //usbprog_jtag_tms_send(usbprog_jtag_handle);\r
+\r
+ usbprog_state_move();\r
+ usbprog_end_state(saved_end_state);\r
+\r
+ usbprog_jtag_tms_send(usbprog_jtag_handle);\r
+\r
+ if (type == SCAN_OUT)\r
+ {\r
+ usbprog_jtag_write_tdi(usbprog_jtag_handle,buffer, scan_size);\r
+ }\r
+ if (type == SCAN_IN)\r
+ {\r
+ usbprog_jtag_read_tdo(usbprog_jtag_handle,buffer, scan_size);\r
+ }\r
+ if (type == SCAN_IO)\r
+ {\r
+ usbprog_jtag_write_and_read(usbprog_jtag_handle,buffer, scan_size);\r
+ }\r
+\r
+ if (ir_scan)\r
+ cur_state = TAP_PI;\r
+ else\r
+ cur_state = TAP_PD;\r
+\r
+ if (cur_state != end_state)\r
+ usbprog_state_move();\r
+}\r
+\r
+/*************** jtag wrapper functions *********************/\r
+\r
+void usbprog_write(int tck, int tms, int tdi)\r
+{\r
+ unsigned char output_value=0x00;\r
+\r
+ if (tms)\r
+ output_value |= (1<<TMS_BIT);\r
+ if (tdi)\r
+ output_value |= (1<<TDI_BIT);\r
+ if (tck)\r
+ output_value |= (1<<TCK_BIT);\r
+\r
+ usbprog_jtag_write_slice(usbprog_jtag_handle,output_value);\r
+}\r
+\r
+/* (1) assert or (0) deassert reset lines */\r
+void usbprog_reset(int trst, int srst)\r
+{\r
+ DEBUG("trst: %i, srst: %i", trst, srst);\r
+\r
+ if (trst)\r
+ usbprog_jtag_set_bit(usbprog_jtag_handle, 5, 0);\r
+ else\r
+ usbprog_jtag_set_bit(usbprog_jtag_handle, 5, 1);\r
+\r
+ if (srst)\r
+ usbprog_jtag_set_bit(usbprog_jtag_handle, 4, 0);\r
+ else\r
+ usbprog_jtag_set_bit(usbprog_jtag_handle, 4, 1);\r
+}\r
+\r
+/*************** jtag lowlevel functions ********************/\r
+\r
+struct usb_bus *busses;\r
+\r
+struct usbprog_jtag* usbprog_jtag_open()\r
+{\r
+ struct usb_bus *bus;\r
+ struct usb_device *dev;\r
+\r
+ struct usbprog_jtag *tmp;\r
+\r
+ tmp = (struct usbprog_jtag*)malloc(sizeof(struct usbprog_jtag));\r
+\r
+ usb_set_debug(10);\r
+ usb_init();\r
+ usb_find_busses();\r
+ usb_find_devices();\r
+\r
+ busses = usb_get_busses();\r
+\r
+ /* find usbprog_jtag device in usb bus */\r
+\r
+ for (bus = busses; bus; bus = bus->next)\r
+ {\r
+ for (dev = bus->devices; dev; dev = dev->next)\r
+ {\r
+ /* condition for sucessfully hit (too bad, I only check the vendor id)*/\r
+ if (dev->descriptor.idVendor == VID && dev->descriptor.idProduct == PID)\r
+ {\r
+ tmp->usb_handle = usb_open(dev);\r
+ usb_set_configuration(tmp->usb_handle, 1);\r
+ usb_claim_interface(tmp->usb_handle, 0);\r
+ usb_set_altinterface(tmp->usb_handle, 0);\r
+ return tmp;\r
+ }\r
+ }\r
+ }\r
+ return 0;\r
+}\r
+\r
+void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag)\r
+{\r
+ usb_close(usbprog_jtag->usb_handle);\r
+ free(usbprog_jtag);\r
+}\r
+\r
+unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen)\r
+{\r
+ int res = usb_bulk_write(usbprog_jtag->usb_handle, 3, msg,msglen, 100);\r
+ if ((msg[0] == 2) || (msg[0] == 1) || (msg[0] == 4) || (msg[0] == 0) || \\r
+ (msg[0] == 6) || (msg[0] == 0x0A) || (msg[0] == 9))\r
+ return 1;\r
+ if (res == msglen)\r
+ {\r
+ //INFO("HALLLLOOO %i",(int)msg[0]);\r
+ res = usb_bulk_read(usbprog_jtag->usb_handle, 0x82, msg, 2, 100);\r
+ if (res > 0)\r
+ return (unsigned char)msg[1];\r
+ else\r
+ return -1;\r
+ }\r
+ else\r
+ return -1;\r
+ return 0;\r
+}\r
+\r
+void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag)\r
+{\r
+ usbprog_jtag_set_direction(usbprog_jtag, 0xFE);\r
+}\r
+\r
+void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size)\r
+{\r
+ char tmp[64]; /* fastes packet size for usb controller */\r
+ int send_bits, bufindex = 0, fillindex = 0, i, loops;\r
+\r
+ char swap;\r
+ /* 61 byte can be transfered (488 bit) */\r
+\r
+ while (size > 0)\r
+ {\r
+ if (size > 488)\r
+ {\r
+ send_bits = 488;\r
+ size = size - 488;\r
+ loops = 61;\r
+ }\r
+ else\r
+ {\r
+ send_bits = size;\r
+ loops = size / 8;\r
+ loops++;\r
+ size = 0;\r
+ }\r
+ tmp[0] = WRITE_AND_READ;\r
+ tmp[1] = (char)(send_bits >> 8); /* high */\r
+ tmp[2] = (char)(send_bits); /* low */\r
+ i = 0;\r
+\r
+ for (i = 0; i < loops; i++)\r
+ {\r
+ tmp[3 + i] = buffer[bufindex];\r
+ bufindex++;\r
+ }\r
+\r
+ if (usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 64, 1000) == 64)\r
+ {\r
+ //INFO("HALLLLOOO2 %i",(int)tmp[0]);\r
+ usleep(1);\r
+ int timeout = 0;\r
+ while (usb_bulk_read(usbprog_jtag->usb_handle, 0x82, tmp, 64, 1000) < 1)\r
+ {\r
+ timeout++;\r
+ if (timeout > 10)\r
+ break;\r
+ }\r
+\r
+ for (i = 0; i < loops; i++)\r
+ {\r
+ swap = tmp[3 + i];\r
+ buffer[fillindex++] = swap;\r
+ }\r
+ }\r
+ }\r
+}\r
+\r
+void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char * buffer, int size)\r
+{\r
+ char tmp[64]; /* fastes packet size for usb controller */\r
+ int send_bits, fillindex = 0, i, loops;\r
+\r
+ char swap;\r
+ /* 61 byte can be transfered (488 bit) */\r
+\r
+ while (size > 0)\r
+ {\r
+ if (size > 488)\r
+ {\r
+ send_bits = 488;\r
+ size = size - 488;\r
+ loops = 61;\r
+ }\r
+ else\r
+ {\r
+ send_bits = size;\r
+ loops = size / 8;\r
+ loops++;\r
+ size = 0;\r
+ }\r
+ tmp[0] = WRITE_AND_READ;\r
+ tmp[1] = (char)(send_bits >> 8); /* high */\r
+ tmp[2] = (char)(send_bits); /* low */\r
+\r
+ usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 3, 1000);\r
+\r
+ //INFO("HALLLLOOO3 %i",(int)tmp[0]);\r
+ int timeout = 0;\r
+ usleep(1);\r
+ while (usb_bulk_read(usbprog_jtag->usb_handle, 0x82, tmp, 64, 10) < 1)\r
+ {\r
+ timeout++;\r
+ if (timeout > 10)\r
+ break;\r
+ }\r
+\r
+ for (i = 0; i < loops; i++)\r
+ {\r
+ swap = tmp[3 + i];\r
+ buffer[fillindex++] = swap;\r
+ }\r
+ }\r
+}\r
+\r
+void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, int size)\r
+{\r
+ char tmp[64]; /* fastes packet size for usb controller */\r
+ int send_bits, bufindex = 0, i, loops;\r
+\r
+ /* 61 byte can be transfered (488 bit) */\r
+ while (size > 0)\r
+ {\r
+ if (size > 488)\r
+ {\r
+ send_bits = 488;\r
+ size = size - 488;\r
+ loops = 61;\r
+ }\r
+ else\r
+ {\r
+ send_bits = size;\r
+ loops = size/8;\r
+ //if(loops==0)\r
+ loops++;\r
+ size = 0;\r
+ }\r
+ tmp[0] = WRITE_TDI;\r
+ tmp[1] = (char)(send_bits >> 8); /* high */\r
+ tmp[2] = (char)(send_bits); /* low */\r
+ i = 0;\r
+\r
+ for (i = 0; i < loops; i++)\r
+ {\r
+ tmp[3 + i] = buffer[bufindex];\r
+ bufindex++;\r
+ }\r
+ usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 64, 1000);\r
+ }\r
+}\r
+\r
+void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan)\r
+{\r
+ usbprog_jtag_tms_collect(tms_scan);\r
+}\r
+\r
+void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction)\r
+{\r
+ char tmp[2];\r
+ tmp[0] = PORT_DIRECTION;\r
+ tmp[1] = (char)direction;\r
+ usbprog_jtag_message(usbprog_jtag, tmp, 2);\r
+}\r
+\r
+void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag,unsigned char value)\r
+{\r
+ char tmp[2];\r
+ tmp[0] = PORT_SET;\r
+ tmp[1] = (char)value;\r
+ usbprog_jtag_message(usbprog_jtag, tmp, 2);\r
+}\r
+\r
+unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag)\r
+{\r
+ char tmp[2];\r
+ tmp[0] = PORT_GET;\r
+ tmp[1] = 0x00;\r
+ return usbprog_jtag_message(usbprog_jtag, tmp, 2);\r
+}\r
+\r
+void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag,int bit, int value)\r
+{\r
+ char tmp[3];\r
+ tmp[0] = PORT_SETBIT;\r
+ tmp[1] = (char)bit;\r
+ if (value == 1)\r
+ tmp[2] = 0x01;\r
+ else\r
+ tmp[2] = 0x00;\r
+ usbprog_jtag_message(usbprog_jtag, tmp, 3);\r
+}\r
+\r
+int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit)\r
+{\r
+ char tmp[2];\r
+ tmp[0] = PORT_GETBIT;\r
+ tmp[1] = (char)bit;\r
+\r
+ if (usbprog_jtag_message(usbprog_jtag, tmp, 2) > 0)\r
+ return 1;\r
+ else\r
+ return 0;\r
+}\r
+\r
+void usbprog_jtag_tms_collect(char tms_scan)\r
+{\r
+ tms_chain[tms_chain_index] = tms_scan;\r
+ tms_chain_index++;\r
+}\r
+\r
+void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag)\r
+{\r
+ int i;\r
+ //INFO("TMS SEND");\r
+ if (tms_chain_index > 0)\r
+ {\r
+ char tmp[tms_chain_index + 2];\r
+ tmp[0] = WRITE_TMS_CHAIN;\r
+ tmp[1] = (char)(tms_chain_index);\r
+ for (i = 0; i < tms_chain_index + 1; i++)\r
+ tmp[2 + i] = tms_chain[i];\r
+ usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, tms_chain_index + 2, 1000);\r
+ tms_chain_index = 0;\r
+ }\r
+}\r
Code Review / openocd.git / commitdiff