X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fjtag%2Fgw16012.c;h=0f2cb7109e3ba97dbbd0dcd344e3d95618bcd770;hp=1f1f6086833c3f62f35c2cef088ddf454ff681cb;hb=f76cf27380af20a6e1d46448c146140234d914f9;hpb=5ed126c4f90948fbf53d186dc4ef49018fb5ecfc diff --git a/src/jtag/gw16012.c b/src/jtag/gw16012.c index 1f1f608683..0f2cb7109e 100644 --- a/src/jtag/gw16012.c +++ b/src/jtag/gw16012.c @@ -1,575 +1,578 @@ -/*************************************************************************** - * Copyright (C) 2006 by Dominic Rath * - * Dominic.Rath@gmx.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. * - ***************************************************************************/ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "replacements.h" - -#include "jtag.h" - -#if 1 -#define _DEBUG_GW16012_IO_ -#endif - -/* system includes */ - -/* system includes */ -// -ino: 060521-1036 -#ifdef __FreeBSD__ - -#include -#include -#include -#define ioperm(startport,length,enable)\ - i386_set_ioperm((startport), (length), (enable)) - -#else - -#ifndef _WIN32 -#include -#else -#include "errno.h" -#endif /* _WIN32 */ - -#endif /* __FreeBSD__ */ - -#include -#include - -#include -#include - -#if PARPORT_USE_PPDEV == 1 -#ifdef __FreeBSD__ -#include -#include -#define PPRSTATUS PPIGSTATUS -#define PPWDATA PPISDATA -#else -#include -#include -#endif -#include -#include -#endif - -#if PARPORT_USE_GIVEIO == 1 -#if IS_CYGWIN == 1 -#include -#include -#undef ERROR -#endif -#endif - -#include "log.h" - -/* configuration */ -unsigned long gw16012_port; - -/* interface variables - */ -static u8 gw16012_msb = 0x0; -static u8 gw16012_control_value = 0x0; - -#if PARPORT_USE_PPDEV == 1 -static int device_handle; -#endif - -int gw16012_execute_queue(void); -int gw16012_register_commands(struct command_context_s *cmd_ctx); -int gw16012_speed(int speed); -int gw16012_init(void); -int gw16012_quit(void); - -int gw16012_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -jtag_interface_t gw16012_interface = -{ - .name = "gw16012", - - .execute_queue = gw16012_execute_queue, - - .support_pathmove = 0, - - .speed = gw16012_speed, - .register_commands = gw16012_register_commands, - .init = gw16012_init, - .quit = gw16012_quit, -}; - -int gw16012_register_commands(struct command_context_s *cmd_ctx) -{ - register_command(cmd_ctx, NULL, "parport_port", gw16012_handle_parport_port_command, - COMMAND_CONFIG, NULL); - - return ERROR_OK; -} - -void gw16012_data(u8 value) -{ - value = (value & 0x7f) | gw16012_msb; - gw16012_msb ^= 0x80; /* toggle MSB */ - -#ifdef _DEBUG_GW16012_IO_ - DEBUG("%2.2x", value); -#endif - - #if PARPORT_USE_PPDEV == 1 - ioctl(device_handle, PPWDATA, &value); - #else - #ifdef __FreeBSD__ - outb(gw16012_port, value); - #else - outb(value, gw16012_port); - #endif - #endif -} - -void gw16012_control(u8 value) -{ - if (value != gw16012_control_value) - { - gw16012_control_value = value; - -#ifdef _DEBUG_GW16012_IO_ - DEBUG("%2.2x", gw16012_control_value); -#endif - - #if PARPORT_USE_PPDEV == 1 - ioctl(device_handle, PPWCONTROL, &gw16012_control_value); - #else - #ifdef __FreeBSD__ - outb(gw16012_port + 2, gw16012_control_value); - #else - outb(gw16012_control_value, gw16012_port + 2); - #endif - #endif - } -} - -void gw16012_input(u8 *value) -{ - #if PARPORT_USE_PPDEV == 1 - ioctl(device_handle, PPRSTATUS, value); - #else - *value = inb(gw16012_port + 1); - #endif - -#ifdef _DEBUG_GW16012_IO_ - DEBUG("%2.2x", *value); -#endif -} - -/* (1) assert or (0) deassert reset lines */ -void gw16012_reset(int trst, int srst) -{ - DEBUG("trst: %i, srst: %i", trst, srst); - - if (trst == 0) - gw16012_control(0x0d); - else if (trst == 1) - gw16012_control(0x0c); - - if (srst == 0) - gw16012_control(0x0a); - else if (srst == 1) - gw16012_control(0x0b); -} - -int gw16012_speed(int speed) -{ - - return ERROR_OK; -} - -void gw16012_end_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 gw16012_state_move(void) -{ - int i=0, tms=0; - u8 tms_scan = TAP_MOVE(cur_state, end_state); - - gw16012_control(0x0); /* single-bit mode */ - - for (i = 0; i < 7; i++) - { - tms = (tms_scan >> i) & 1; - gw16012_data(tms << 1); /* output next TMS bit */ - } - - cur_state = end_state; -} - -void gw16012_path_move(pathmove_command_t *cmd) -{ - int num_states = cmd->num_states; - int state_count; - - state_count = 0; - while (num_states) - { - gw16012_control(0x0); /* single-bit mode */ - if (tap_transitions[cur_state].low == cmd->path[state_count]) - { - gw16012_data(0x0); /* TCK cycle with TMS low */ - } - else if (tap_transitions[cur_state].high == cmd->path[state_count]) - { - gw16012_data(0x2); /* TCK cycle with TMS high */ - } - 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 gw16012_runtest(int num_cycles) -{ - enum tap_state saved_end_state = end_state; - int i; - - /* only do a state_move when we're not already in RTI */ - if (cur_state != TAP_RTI) - { - gw16012_end_state(TAP_RTI); - gw16012_state_move(); - } - - for (i = 0; i < num_cycles; i++) - { - gw16012_control(0x0); /* single-bit mode */ - gw16012_data(0x0); /* TMS cycle with TMS low */ - } - - gw16012_end_state(saved_end_state); - if (cur_state != end_state) - gw16012_state_move(); -} - -void gw16012_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size) -{ - int bits_left = scan_size; - int bit_count = 0; - enum tap_state saved_end_state = end_state; - u8 scan_out, scan_in; - - /* only if we're not already in the correct Shift state */ - if (!((!ir_scan && (cur_state == TAP_SD)) || (ir_scan && (cur_state == TAP_SI)))) - { - if (ir_scan) - gw16012_end_state(TAP_SI); - else - gw16012_end_state(TAP_SD); - - gw16012_state_move(); - gw16012_end_state(saved_end_state); - } - - while (type == SCAN_OUT && ((bits_left - 1) > 7)) - { - gw16012_control(0x2); /* seven-bit mode */ - scan_out = buf_get_u32(buffer, bit_count, 7); - gw16012_data(scan_out); - bit_count += 7; - bits_left -= 7; - } - - gw16012_control(0x0); /* single-bit mode */ - while (bits_left-- > 0) - { - u8 tms = 0; - - scan_out = buf_get_u32(buffer, bit_count, 1); - - if (bits_left == 0) /* last bit */ - { - if ((ir_scan && (end_state == TAP_SI)) - || (!ir_scan && (end_state == TAP_SD))) - { - tms = 0; - } - else - { - tms = 2; - } - } - - gw16012_data(scan_out | tms); - - if (type != SCAN_OUT) - { - gw16012_input(&scan_in); - buf_set_u32(buffer, bit_count, 1, ((scan_in & 0x08) >> 3)); - } - - bit_count++; - } - - if (!((ir_scan && (end_state == TAP_SI)) || - (!ir_scan && (end_state == TAP_SD)))) - { - gw16012_data(0x0); - if (ir_scan) - cur_state = TAP_PI; - else - cur_state = TAP_PD; - - if (cur_state != end_state) - gw16012_state_move(); - } -} - -int gw16012_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) - gw16012_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; - } - gw16012_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) - gw16012_end_state(cmd->cmd.runtest->end_state); - gw16012_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) - gw16012_end_state(cmd->cmd.statemove->end_state); - gw16012_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 - gw16012_path_move(cmd->cmd.pathmove); - break; - case JTAG_SCAN: - if (cmd->cmd.scan->end_state != -1) - gw16012_end_state(cmd->cmd.scan->end_state); - scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer); - type = jtag_scan_type(cmd->cmd.scan); -#ifdef _DEBUG_JTAG_IO_ - DEBUG("%s scan (%i) %i bit end in %i", (cmd->cmd.scan->ir_scan) ? "ir" : "dr", - type, scan_size, cmd->cmd.scan->end_state); -#endif - gw16012_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; -} - -#if PARPORT_USE_GIVEIO == 1 -int gw16012_get_giveio_access() -{ - HANDLE h; - OSVERSIONINFO version; - - version.dwOSVersionInfoSize = sizeof version; - if (!GetVersionEx( &version )) { - errno = EINVAL; - return -1; - } - if (version.dwPlatformId != VER_PLATFORM_WIN32_NT) - return 0; - - h = CreateFile( "\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); - if (h == INVALID_HANDLE_VALUE) { - errno = ENODEV; - return -1; - } - - CloseHandle( h ); - - return 0; -} -#endif - -int gw16012_init(void) -{ -#if PARPORT_USE_PPDEV == 1 - char buffer[256]; - int i = 0; - u8 control_port; -#endif - u8 status_port; - -#if PARPORT_USE_PPDEV == 1 - if (device_handle>0) - { - ERROR("device is already opened"); - return ERROR_JTAG_INIT_FAILED; - } - -#ifdef __FreeBSD__ - DEBUG("opening /dev/ppi%d...", gw16012_port); - - snprintf(buffer, 256, "/dev/ppi%d", gw16012_port); - device_handle = open(buffer, O_WRONLY); -#else - DEBUG("opening /dev/parport%d...", gw16012_port); - - snprintf(buffer, 256, "/dev/parport%d", gw16012_port); - device_handle = open(buffer, O_WRONLY); -#endif - if (device_handle<0) - { - ERROR("cannot open device. check it exists and that user read and write rights are set"); - return ERROR_JTAG_INIT_FAILED; - } - - DEBUG("...open"); - -#ifndef __FreeBSD__ - i=ioctl(device_handle, PPCLAIM); - if (i<0) - { - ERROR("cannot claim device"); - return ERROR_JTAG_INIT_FAILED; - } - - i = PARPORT_MODE_COMPAT; - i= ioctl(device_handle, PPSETMODE, & i); - if (i<0) - { - ERROR(" cannot set compatible mode to device"); - return ERROR_JTAG_INIT_FAILED; - } - - i = IEEE1284_MODE_COMPAT; - i = ioctl(device_handle, PPNEGOT, & i); - if (i<0) - { - ERROR("cannot set compatible 1284 mode to device"); - return ERROR_JTAG_INIT_FAILED; - } -#endif -#else - if (gw16012_port == 0) - { - gw16012_port = 0x378; - WARNING("No gw16012 port specified, using default '0x378' (LPT1)"); - } - - DEBUG("requesting privileges for parallel port 0x%lx...", gw16012_port); -#if PARPORT_USE_GIVEIO == 1 - if (gw16012_get_giveio_access() != 0) -#else /* PARPORT_USE_GIVEIO */ - if (ioperm(gw16012_port, 3, 1) != 0) -#endif /* PARPORT_USE_GIVEIO */ - { - ERROR("missing privileges for direct i/o"); - return ERROR_JTAG_INIT_FAILED; - } - DEBUG("...privileges granted"); - - /* make sure parallel port is in right mode (clear tristate and interrupt */ -#ifdef __FreeBSD__ - outb(gw16012_port + 2, 0x0); -#else - outb(0x0, gw16012_port + 2); -#endif -#endif /* PARPORT_USE_PPDEV */ - - gw16012_input(&status_port); - gw16012_msb = (status_port & 0x80) ^ 0x80; - - gw16012_speed(jtag_speed); - gw16012_reset(0, 0); - - return ERROR_OK; -} - -int gw16012_quit(void) -{ - - return ERROR_OK; -} - -int gw16012_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc == 0) - return ERROR_OK; - - /* only if the port wasn't overwritten by cmdline */ - if (gw16012_port == 0) - gw16012_port = strtoul(args[0], NULL, 0); - - return ERROR_OK; -} +/*************************************************************************** + * Copyright (C) 2006 by Dominic Rath * + * Dominic.Rath@gmx.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. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "replacements.h" + +#include "jtag.h" + +#if 1 +#define _DEBUG_GW16012_IO_ +#endif + +/* system includes */ +// -ino: 060521-1036 +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + +#include +#include +#include +#define ioperm(startport,length,enable)\ + i386_set_ioperm((startport), (length), (enable)) + +#else + +#ifdef _WIN32 +#include "errno.h" +#endif /* _WIN32 */ + +#endif /* __FreeBSD__, __FreeBSD_kernel__ */ + +#include +#include + +#include +#include + +#if PARPORT_USE_PPDEV == 1 +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) +#include +#include +#define PPRSTATUS PPIGSTATUS +#define PPWDATA PPISDATA +#else +#include +#include +#endif +#include +#include +#else /* not PARPORT_USE_PPDEV */ +#ifndef _WIN32 +#include +#endif +#endif + +#if PARPORT_USE_GIVEIO == 1 +#if IS_CYGWIN == 1 +#include +#include +#undef ERROR +#endif +#endif + +#include "log.h" + +/* configuration */ +u16 gw16012_port; + +/* interface variables + */ +static u8 gw16012_msb = 0x0; +static u8 gw16012_control_value = 0x0; + +#if PARPORT_USE_PPDEV == 1 +static int device_handle; +#endif + +int gw16012_execute_queue(void); +int gw16012_register_commands(struct command_context_s *cmd_ctx); +int gw16012_speed(int speed); +int gw16012_init(void); +int gw16012_quit(void); + +int gw16012_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +jtag_interface_t gw16012_interface = +{ + .name = "gw16012", + + .execute_queue = gw16012_execute_queue, + + .speed = gw16012_speed, + .register_commands = gw16012_register_commands, + .init = gw16012_init, + .quit = gw16012_quit, +}; + +int gw16012_register_commands(struct command_context_s *cmd_ctx) +{ + register_command(cmd_ctx, NULL, "parport_port", gw16012_handle_parport_port_command, + COMMAND_CONFIG, NULL); + + return ERROR_OK; +} + +void gw16012_data(u8 value) +{ + value = (value & 0x7f) | gw16012_msb; + gw16012_msb ^= 0x80; /* toggle MSB */ + +#ifdef _DEBUG_GW16012_IO_ + DEBUG("%2.2x", value); +#endif + + #if PARPORT_USE_PPDEV == 1 + ioctl(device_handle, PPWDATA, &value); + #else + #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + outb(gw16012_port, value); + #else + outb(value, gw16012_port); + #endif + #endif +} + +void gw16012_control(u8 value) +{ + if (value != gw16012_control_value) + { + gw16012_control_value = value; + +#ifdef _DEBUG_GW16012_IO_ + DEBUG("%2.2x", gw16012_control_value); +#endif + + #if PARPORT_USE_PPDEV == 1 + ioctl(device_handle, PPWCONTROL, &gw16012_control_value); + #else + #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + outb(gw16012_port + 2, gw16012_control_value); + #else + outb(gw16012_control_value, gw16012_port + 2); + #endif + #endif + } +} + +void gw16012_input(u8 *value) +{ + #if PARPORT_USE_PPDEV == 1 + ioctl(device_handle, PPRSTATUS, value); + #else + *value = inb(gw16012_port + 1); + #endif + +#ifdef _DEBUG_GW16012_IO_ + DEBUG("%2.2x", *value); +#endif +} + +/* (1) assert or (0) deassert reset lines */ +void gw16012_reset(int trst, int srst) +{ + DEBUG("trst: %i, srst: %i", trst, srst); + + if (trst == 0) + gw16012_control(0x0d); + else if (trst == 1) + gw16012_control(0x0c); + + if (srst == 0) + gw16012_control(0x0a); + else if (srst == 1) + gw16012_control(0x0b); +} + +int gw16012_speed(int speed) +{ + + return ERROR_OK; +} + +void gw16012_end_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 gw16012_state_move(void) +{ + int i=0, tms=0; + u8 tms_scan = TAP_MOVE(cur_state, end_state); + + gw16012_control(0x0); /* single-bit mode */ + + for (i = 0; i < 7; i++) + { + tms = (tms_scan >> i) & 1; + gw16012_data(tms << 1); /* output next TMS bit */ + } + + cur_state = end_state; +} + +void gw16012_path_move(pathmove_command_t *cmd) +{ + int num_states = cmd->num_states; + int state_count; + + state_count = 0; + while (num_states) + { + gw16012_control(0x0); /* single-bit mode */ + if (tap_transitions[cur_state].low == cmd->path[state_count]) + { + gw16012_data(0x0); /* TCK cycle with TMS low */ + } + else if (tap_transitions[cur_state].high == cmd->path[state_count]) + { + gw16012_data(0x2); /* TCK cycle with TMS high */ + } + 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 gw16012_runtest(int num_cycles) +{ + enum tap_state saved_end_state = end_state; + int i; + + /* only do a state_move when we're not already in RTI */ + if (cur_state != TAP_RTI) + { + gw16012_end_state(TAP_RTI); + gw16012_state_move(); + } + + for (i = 0; i < num_cycles; i++) + { + gw16012_control(0x0); /* single-bit mode */ + gw16012_data(0x0); /* TMS cycle with TMS low */ + } + + gw16012_end_state(saved_end_state); + if (cur_state != end_state) + gw16012_state_move(); +} + +void gw16012_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size) +{ + int bits_left = scan_size; + int bit_count = 0; + enum tap_state saved_end_state = end_state; + u8 scan_out, scan_in; + + /* only if we're not already in the correct Shift state */ + if (!((!ir_scan && (cur_state == TAP_SD)) || (ir_scan && (cur_state == TAP_SI)))) + { + if (ir_scan) + gw16012_end_state(TAP_SI); + else + gw16012_end_state(TAP_SD); + + gw16012_state_move(); + gw16012_end_state(saved_end_state); + } + + while (type == SCAN_OUT && ((bits_left - 1) > 7)) + { + gw16012_control(0x2); /* seven-bit mode */ + scan_out = buf_get_u32(buffer, bit_count, 7); + gw16012_data(scan_out); + bit_count += 7; + bits_left -= 7; + } + + gw16012_control(0x0); /* single-bit mode */ + while (bits_left-- > 0) + { + u8 tms = 0; + + scan_out = buf_get_u32(buffer, bit_count, 1); + + if (bits_left == 0) /* last bit */ + { + if ((ir_scan && (end_state == TAP_SI)) + || (!ir_scan && (end_state == TAP_SD))) + { + tms = 0; + } + else + { + tms = 2; + } + } + + gw16012_data(scan_out | tms); + + if (type != SCAN_OUT) + { + gw16012_input(&scan_in); + buf_set_u32(buffer, bit_count, 1, ((scan_in & 0x08) >> 3)); + } + + bit_count++; + } + + if (!((ir_scan && (end_state == TAP_SI)) || + (!ir_scan && (end_state == TAP_SD)))) + { + gw16012_data(0x0); + if (ir_scan) + cur_state = TAP_PI; + else + cur_state = TAP_PD; + + if (cur_state != end_state) + gw16012_state_move(); + } +} + +int gw16012_execute_queue(void) +{ + jtag_command_t *cmd = jtag_command_queue; /* currently processed command */ + int scan_size; + enum scan_type type; + u8 *buffer; + int retval; + + /* return ERROR_OK, unless a jtag_read_buffer returns a failed check + * that wasn't handled by a caller-provided error handler + */ + retval = ERROR_OK; + + 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) + gw16012_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; + } + gw16012_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) + gw16012_end_state(cmd->cmd.runtest->end_state); + gw16012_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) + gw16012_end_state(cmd->cmd.statemove->end_state); + gw16012_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 + gw16012_path_move(cmd->cmd.pathmove); + break; + case JTAG_SCAN: + if (cmd->cmd.scan->end_state != -1) + gw16012_end_state(cmd->cmd.scan->end_state); + scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer); + type = jtag_scan_type(cmd->cmd.scan); +#ifdef _DEBUG_JTAG_IO_ + DEBUG("%s scan (%i) %i bit end in %i", (cmd->cmd.scan->ir_scan) ? "ir" : "dr", + type, scan_size, cmd->cmd.scan->end_state); +#endif + gw16012_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size); + if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK) + retval = 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 retval; +} + +#if PARPORT_USE_GIVEIO == 1 +int gw16012_get_giveio_access() +{ + HANDLE h; + OSVERSIONINFO version; + + version.dwOSVersionInfoSize = sizeof version; + if (!GetVersionEx( &version )) { + errno = EINVAL; + return -1; + } + if (version.dwPlatformId != VER_PLATFORM_WIN32_NT) + return 0; + + h = CreateFile( "\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); + if (h == INVALID_HANDLE_VALUE) { + errno = ENODEV; + return -1; + } + + CloseHandle( h ); + + return 0; +} +#endif + +int gw16012_init(void) +{ +#if PARPORT_USE_PPDEV == 1 + char buffer[256]; + int i = 0; +#endif + u8 status_port; + +#if PARPORT_USE_PPDEV == 1 + if (device_handle>0) + { + ERROR("device is already opened"); + return ERROR_JTAG_INIT_FAILED; + } + +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + DEBUG("opening /dev/ppi%d...", gw16012_port); + + snprintf(buffer, 256, "/dev/ppi%d", gw16012_port); + device_handle = open(buffer, O_WRONLY); +#else + DEBUG("opening /dev/parport%d...", gw16012_port); + + snprintf(buffer, 256, "/dev/parport%d", gw16012_port); + device_handle = open(buffer, O_WRONLY); +#endif + if (device_handle<0) + { + ERROR("cannot open device. check it exists and that user read and write rights are set"); + return ERROR_JTAG_INIT_FAILED; + } + + DEBUG("...open"); + +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + i=ioctl(device_handle, PPCLAIM); + if (i<0) + { + ERROR("cannot claim device"); + return ERROR_JTAG_INIT_FAILED; + } + + i = PARPORT_MODE_COMPAT; + i= ioctl(device_handle, PPSETMODE, & i); + if (i<0) + { + ERROR(" cannot set compatible mode to device"); + return ERROR_JTAG_INIT_FAILED; + } + + i = IEEE1284_MODE_COMPAT; + i = ioctl(device_handle, PPNEGOT, & i); + if (i<0) + { + ERROR("cannot set compatible 1284 mode to device"); + return ERROR_JTAG_INIT_FAILED; + } +#endif +#else + if (gw16012_port == 0) + { + gw16012_port = 0x378; + WARNING("No gw16012 port specified, using default '0x378' (LPT1)"); + } + + DEBUG("requesting privileges for parallel port 0x%lx...", gw16012_port); +#if PARPORT_USE_GIVEIO == 1 + if (gw16012_get_giveio_access() != 0) +#else /* PARPORT_USE_GIVEIO */ + if (ioperm(gw16012_port, 3, 1) != 0) +#endif /* PARPORT_USE_GIVEIO */ + { + ERROR("missing privileges for direct i/o"); + return ERROR_JTAG_INIT_FAILED; + } + DEBUG("...privileges granted"); + + /* make sure parallel port is in right mode (clear tristate and interrupt */ +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + outb(gw16012_port + 2, 0x0); +#else + outb(0x0, gw16012_port + 2); +#endif +#endif /* PARPORT_USE_PPDEV */ + + gw16012_input(&status_port); + gw16012_msb = (status_port & 0x80) ^ 0x80; + + gw16012_speed(jtag_speed); + gw16012_reset(0, 0); + + return ERROR_OK; +} + +int gw16012_quit(void) +{ + + return ERROR_OK; +} + +int gw16012_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc == 0) + return ERROR_OK; + + /* only if the port wasn't overwritten by cmdline */ + if (gw16012_port == 0) + gw16012_port = strtoul(args[0], NULL, 0); + + return ERROR_OK; +}