diff options
author | Zachary T Welch <zw@superlucidity.net> | 2009-12-02 17:18:05 -0800 |
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committer | Zachary T Welch <zw@superlucidity.net> | 2009-12-02 23:27:09 -0800 |
commit | 865efd828a267992db0f2a92a731c5ce23a34236 (patch) | |
tree | c504af3f912c13c32ffd5f75ad98081008051c7a /src/jtag/usbprog.c | |
parent | fe9228a32db930be297d4d3b35ffb94d6de1b9ab (diff) |
move jtag drivers to src/jtag/drivers
Moves JTAG interface drivers to src/jtag/drivers/,
Adds src/jtag/drivers/Makefile.am.
Builds libocdjtagdrivers.la.
Flattens the rlink driver files into the drivers/ directory, adding
the 'rlink_' prefix or '.rlink' suffix as appropriate.
Diffstat (limited to 'src/jtag/usbprog.c')
-rw-r--r-- | src/jtag/usbprog.c | 660 |
1 files changed, 0 insertions, 660 deletions
diff --git a/src/jtag/usbprog.c b/src/jtag/usbprog.c deleted file mode 100644 index 204d0e2e..00000000 --- a/src/jtag/usbprog.c +++ /dev/null @@ -1,660 +0,0 @@ -/*************************************************************************** - * 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 * - * 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. * - ***************************************************************************/ - -/* - * 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 - -#include "interface.h" -#include "commands.h" -#include "usb_common.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 - -static void usbprog_end_state(tap_state_t state); -static void usbprog_state_move(void); -static void usbprog_path_move(struct pathmove_command *cmd); -static void usbprog_runtest(int num_cycles); -static void usbprog_scan(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size); - -#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; -}; - -static struct usbprog_jtag * usbprog_jtag_handle; - -static struct usbprog_jtag* usbprog_jtag_open(void); -//static void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag); -static void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag); -static unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen); - -static void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char * buffer, int size); -static void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char * buffer, int size); -static void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char * buffer, int size); -static void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan); - -static char tms_chain[64]; -static int tms_chain_index; - -static void usbprog_jtag_tms_collect(char tms_scan); -static void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag); - -static void usbprog_write(int tck, int tms, int tdi); -static void usbprog_reset(int trst, int srst); - -static void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction); -static void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag,unsigned char value); -//static unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag); -static void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag,int bit, int value); -//static int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit); - -static int usbprog_speed(int speed) -{ - return ERROR_OK; -} - -static int usbprog_execute_queue(void) -{ - struct jtag_command *cmd = jtag_command_queue; /* currently processed command */ - int scan_size; - enum scan_type type; - uint8_t *buffer; - - while (cmd) - { - switch (cmd->type) - { - case JTAG_RESET: -#ifdef _DEBUG_JTAG_IO_ - LOG_DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst); -#endif - if (cmd->cmd.reset->trst == 1) - { - tap_set_state(TAP_RESET); - } - usbprog_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst); - break; - case JTAG_RUNTEST: -#ifdef _DEBUG_JTAG_IO_ - LOG_DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state); -#endif - usbprog_end_state(cmd->cmd.runtest->end_state); - usbprog_runtest(cmd->cmd.runtest->num_cycles); - break; - case JTAG_STATEMOVE: -#ifdef _DEBUG_JTAG_IO_ - LOG_DEBUG("statemove end in %i", cmd->cmd.statemove->end_state); -#endif - usbprog_end_state(cmd->cmd.statemove->end_state); - usbprog_state_move(); - break; - case JTAG_PATHMOVE: -#ifdef _DEBUG_JTAG_IO_ - LOG_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_ - LOG_DEBUG("scan end in %i", cmd->cmd.scan->end_state); -#endif - 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_ - LOG_DEBUG("sleep %i", cmd->cmd.sleep->us); -#endif - jtag_sleep(cmd->cmd.sleep->us); - break; - default: - LOG_ERROR("BUG: unknown JTAG command type encountered"); - exit(-1); - } - - cmd = cmd->next; - } - - return ERROR_OK; -} - -static int usbprog_init(void) -{ - usbprog_jtag_handle = usbprog_jtag_open(); - - tms_chain_index = 0; - if (usbprog_jtag_handle == 0) - { - LOG_ERROR("Can't find USB JTAG Interface! Please check connection and permissions."); - return ERROR_JTAG_INIT_FAILED; - } - - LOG_INFO("USB JTAG Interface ready!"); - - usbprog_jtag_init(usbprog_jtag_handle); - usbprog_reset(0, 0); - usbprog_write(0, 0, 0); - - return ERROR_OK; -} - -static int usbprog_quit(void) -{ - return ERROR_OK; -} - -/*************** jtag execute commands **********************/ -static void usbprog_end_state(tap_state_t state) -{ - if (tap_is_state_stable(state)) - tap_set_end_state(state); - else - { - LOG_ERROR("BUG: %i is not a valid end state", state); - exit(-1); - } -} - -static void usbprog_state_move(void) -{ - int i = 0, tms = 0; - uint8_t tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state()); - int tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state()); - - usbprog_jtag_write_tms(usbprog_jtag_handle, (char)tms_scan); - for (i = 0; i < tms_count; i++) - { - tms = (tms_scan >> i) & 1; - } - - tap_set_state(tap_get_end_state()); -} - -static void usbprog_path_move(struct pathmove_command *cmd) -{ - int num_states = cmd->num_states; - int state_count; - - /* There may be queued transitions, and before following a specified - path, we must flush those queued transitions */ - usbprog_jtag_tms_send(usbprog_jtag_handle); - - state_count = 0; - while (num_states) - { - if (tap_state_transition(tap_get_state(), false) == cmd->path[state_count]) - { - /* LOG_INFO("1"); */ - usbprog_write(0, 0, 0); - usbprog_write(1, 0, 0); - } - else if (tap_state_transition(tap_get_state(), true) == cmd->path[state_count]) - { - /* LOG_INFO("2"); */ - usbprog_write(0, 1, 0); - usbprog_write(1, 1, 0); - } - else - { - LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(cmd->path[state_count])); - exit(-1); - } - - tap_set_state(cmd->path[state_count]); - state_count++; - num_states--; - } - - tap_set_end_state(tap_get_state()); -} - -static void usbprog_runtest(int num_cycles) -{ - int i; - - /* only do a state_move when we're not already in IDLE */ - if (tap_get_state() != TAP_IDLE) - { - usbprog_end_state(TAP_IDLE); - 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); - /* LOG_INFO("NUM CYCLES %i",num_cycles); */ - } - - for (i = 0; i < num_cycles; i++) - { - usbprog_write(1, 0, 0); - usbprog_write(0, 0, 0); - } - -#ifdef _DEBUG_JTAG_IO_ - LOG_DEBUG("runtest: cur_state %s end_state %s", tap_state_name(tap_get_state()), tap_state_name(tap_get_end_state())); -#endif - - /* finish in end_state */ - /* - usbprog_end_state(saved_end_state); - if (tap_get_state() != tap_get_end_state()) - usbprog_state_move(); - */ -} - -static void usbprog_scan(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size) -{ - tap_state_t saved_end_state = tap_get_end_state(); - - if (ir_scan) - usbprog_end_state(TAP_IRSHIFT); - else - usbprog_end_state(TAP_DRSHIFT); - - /* Only move if we're not already there */ - if (tap_get_state() != tap_get_end_state()) - usbprog_state_move(); - - usbprog_end_state(saved_end_state); - - usbprog_jtag_tms_send(usbprog_jtag_handle); - - void (*f)(struct usbprog_jtag *usbprog_jtag, char * buffer, int size); - switch (type) { - case SCAN_OUT: f = &usbprog_jtag_write_tdi; break; - case SCAN_IN: f = &usbprog_jtag_read_tdo; break; - case SCAN_IO: f = &usbprog_jtag_write_and_read; break; - default: - LOG_ERROR("unknown scan type: %i", type); - exit(-1); - } - f(usbprog_jtag_handle, (char *)buffer, scan_size); - - /* The adapter does the transition to PAUSE internally */ - if (ir_scan) - tap_set_state(TAP_IRPAUSE); - else - tap_set_state(TAP_DRPAUSE); - - if (tap_get_state() != tap_get_end_state()) - usbprog_state_move(); -} - -/*************** jtag wrapper functions *********************/ - -static 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 */ -static void usbprog_reset(int trst, int srst) -{ - LOG_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(void) -{ - usb_set_debug(10); - usb_init(); - - const uint16_t vids[] = { VID, 0 }; - const uint16_t pids[] = { PID, 0 }; - struct usb_dev_handle *dev; - if (jtag_usb_open(vids, pids, &dev) != ERROR_OK) - return NULL; - - struct usbprog_jtag *tmp = malloc(sizeof(struct usbprog_jtag)); - tmp->usb_handle = dev; - - usb_set_configuration(dev, 1); - usb_claim_interface(dev, 0); - usb_set_altinterface(dev, 0); - - return tmp; -} - -#if 0 -static void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag) -{ - usb_close(usbprog_jtag->usb_handle); - free(usbprog_jtag); -} -#endif - -static 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) - { - /* LOG_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; -} - -static void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag) -{ - usbprog_jtag_set_direction(usbprog_jtag, 0xFE); -} - -static 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) - { - /* LOG_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; - } - } - } -} - -static 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); - - /* LOG_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; - } - } -} - -static 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); - } -} - -static void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan) -{ - usbprog_jtag_tms_collect(tms_scan); -} - -static 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); -} - -static 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); -} - -#if 0 -static 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); -} -#endif - -static 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); -} - -#if 0 -static 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; -} -#endif - -static void usbprog_jtag_tms_collect(char tms_scan) -{ - tms_chain[tms_chain_index] = tms_scan; - tms_chain_index++; -} - -static void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag) -{ - int i; - /* LOG_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; - } -} - -struct jtag_interface usbprog_interface = { - .name = "usbprog", - .execute_queue = &usbprog_execute_queue, - .speed = &usbprog_speed, - .init = &usbprog_init, - .quit = &usbprog_quit - }; |