diff options
author | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-02-28 07:25:06 +0000 |
---|---|---|
committer | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-02-28 07:25:06 +0000 |
commit | f76cf27380af20a6e1d46448c146140234d914f9 (patch) | |
tree | 4a8c75674f563b6e3ccb22f95330fc8a247dd73e /src/jtag/gw16012.c | |
parent | 06b1bfed107d5d2508a586fc30345b5a137beec2 (diff) |
Uwe Hermann fixed some warnings.
git-svn-id: svn://svn.berlios.de/openocd/trunk@360 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/jtag/gw16012.c')
-rw-r--r-- | src/jtag/gw16012.c | 1157 |
1 files changed, 578 insertions, 579 deletions
diff --git a/src/jtag/gw16012.c b/src/jtag/gw16012.c index aff43de1..0f2cb710 100644 --- a/src/jtag/gw16012.c +++ b/src/jtag/gw16012.c @@ -1,579 +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 */ -// -ino: 060521-1036 -#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) - -#include <sys/types.h> -#include <machine/sysarch.h> -#include <machine/cpufunc.h> -#define ioperm(startport,length,enable)\ - i386_set_ioperm((startport), (length), (enable)) - -#else - -#ifdef _WIN32 -#include "errno.h" -#endif /* _WIN32 */ - -#endif /* __FreeBSD__, __FreeBSD_kernel__ */ - -#include <string.h> -#include <stdlib.h> - -#include <sys/time.h> -#include <time.h> - -#if PARPORT_USE_PPDEV == 1 -#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) -#include <dev/ppbus/ppi.h> -#include <dev/ppbus/ppbconf.h> -#define PPRSTATUS PPIGSTATUS -#define PPWDATA PPISDATA -#else -#include <linux/parport.h> -#include <linux/ppdev.h> -#endif -#include <fcntl.h> -#include <sys/ioctl.h> -#else /* not PARPORT_USE_PPDEV */ -#ifndef _WIN32 -#include <sys/io.h> -#endif -#endif - -#if PARPORT_USE_GIVEIO == 1 -#if IS_CYGWIN == 1 -#include <windows.h> -#include <errno.h> -#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, - - .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; - 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; - } - -#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; -} +/***************************************************************************
+ * 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 <sys/types.h>
+#include <machine/sysarch.h>
+#include <machine/cpufunc.h>
+#define ioperm(startport,length,enable)\
+ i386_set_ioperm((startport), (length), (enable))
+
+#else
+
+#ifdef _WIN32
+#include "errno.h"
+#endif /* _WIN32 */
+
+#endif /* __FreeBSD__, __FreeBSD_kernel__ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include <sys/time.h>
+#include <time.h>
+
+#if PARPORT_USE_PPDEV == 1
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#include <dev/ppbus/ppi.h>
+#include <dev/ppbus/ppbconf.h>
+#define PPRSTATUS PPIGSTATUS
+#define PPWDATA PPISDATA
+#else
+#include <linux/parport.h>
+#include <linux/ppdev.h>
+#endif
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#else /* not PARPORT_USE_PPDEV */
+#ifndef _WIN32
+#include <sys/io.h>
+#endif
+#endif
+
+#if PARPORT_USE_GIVEIO == 1
+#if IS_CYGWIN == 1
+#include <windows.h>
+#include <errno.h>
+#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;
+}
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