-/***************************************************************************\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
+/***************************************************************************
+ * 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;
+ }
+}
projects / fw / openocd / blobdiff