diff options
author | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-02-28 07:25:06 +0000 |
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committer | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-02-28 07:25:06 +0000 |
commit | f76cf27380af20a6e1d46448c146140234d914f9 (patch) | |
tree | 4a8c75674f563b6e3ccb22f95330fc8a247dd73e /src/jtag/amt_jtagaccel.c | |
parent | 06b1bfed107d5d2508a586fc30345b5a137beec2 (diff) | |
download | riscv-openocd-f76cf27380af20a6e1d46448c146140234d914f9.zip riscv-openocd-f76cf27380af20a6e1d46448c146140234d914f9.tar.gz riscv-openocd-f76cf27380af20a6e1d46448c146140234d914f9.tar.bz2 |
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/amt_jtagaccel.c')
-rw-r--r-- | src/jtag/amt_jtagaccel.c | 1154 |
1 files changed, 577 insertions, 577 deletions
diff --git a/src/jtag/amt_jtagaccel.c b/src/jtag/amt_jtagaccel.c index 500f179..dc40226 100644 --- a/src/jtag/amt_jtagaccel.c +++ b/src/jtag/amt_jtagaccel.c @@ -1,577 +1,577 @@ -/*************************************************************************** - * Copyright (C) 2005 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" - -/* system includes */ - -#ifdef _WIN32 -#include "errno.h" -#endif /* _WIN32 */ - -#include <string.h> -#include <stdlib.h> - -#include <sys/time.h> -#include <time.h> - -#if PARPORT_USE_PPDEV == 1 -#include <linux/parport.h> -#include <linux/ppdev.h> -#include <fcntl.h> -#include <sys/ioctl.h> -#include <unistd.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 amt_jtagaccel_port; - -/* interface variables - */ -static u8 aw_control_rst = 0x00; -static u8 aw_control_fsm = 0x10; -static u8 aw_control_baudrate = 0x20; - -static int rtck_enabled = 0; - -#if PARPORT_USE_PPDEV == 1 -static int device_handle; -int addr_mode = IEEE1284_MODE_EPP | IEEE1284_ADDR ; -int data_mode = IEEE1284_MODE_EPP | IEEE1284_DATA ; -#define AMT_AW(val) do { ioctl(device_handle, PPSETMODE, &addr_mode); write(device_handle, &val, 1); } while (0) -#define AMT_AR(val) do { ioctl(device_handle, PPSETMODE, &addr_mode); read(device_handle, &val, 1); } while (0) -#define AMT_DW(val) do { ioctl(device_handle, PPSETMODE, &data_mode); write(device_handle, &val, 1); } while (0) -#define AMT_DR(val) do { ioctl(device_handle, PPSETMODE, &data_mode); read(device_handle, &val, 1); } while (0) -#else -#define AMT_AW(val) do { outb(val, amt_jtagaccel_port + 3); } while (0) -#define AMT_AR(val) do { val = inb(amt_jtagaccel_port + 3); } while (0) -#define AMT_DW(val) do { outb(val, amt_jtagaccel_port + 4); } while (0) -#define AMT_DR(val) do { val = inb(amt_jtagaccel_port + 4); } while (0) -#endif - -int amt_jtagaccel_execute_queue(void); -int amt_jtagaccel_register_commands(struct command_context_s *cmd_ctx); -int amt_jtagaccel_speed(int speed); -int amt_jtagaccel_init(void); -int amt_jtagaccel_quit(void); - -int amt_jtagaccel_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int amt_jtagaccel_handle_rtck_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -/* tap_move[i][j]: tap movement command to go from state i to state j - * 0: Test-Logic-Reset - * 1: Run-Test/Idle - * 2: Shift-DR - * 3: Pause-DR - * 4: Shift-IR - * 5: Pause-IR - */ -u8 amt_jtagaccel_tap_move[6][6][2] = -{ - /* TLR RTI SD PD SI PI */ - {{0x1f, 0x00}, {0x0f, 0x00}, {0x8a, 0x04}, {0x0a, 0x00}, {0x06, 0x00}, {0x96, 0x00}}, /* TLR */ - {{0x1f, 0x00}, {0x00, 0x00}, {0x85, 0x08}, {0x05, 0x00}, {0x8b, 0x08}, {0x0b, 0x00}}, /* RTI */ - {{0x1f, 0x00}, {0x0d, 0x00}, {0x00, 0x00}, {0x01, 0x00}, {0x8f, 0x09}, {0x8f, 0x01}}, /* SD */ - {{0x1f, 0x00}, {0x0c, 0x00}, {0x08, 0x00}, {0x00, 0x00}, {0x8f, 0x09}, {0x8f, 0x01}}, /* PD */ - {{0x1f, 0x00}, {0x0d, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x00, 0x00}, {0x01, 0x00}}, /* SI */ - {{0x1f, 0x00}, {0x0c, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x08, 0x00}, {0x00, 0x00}}, /* PI */ -}; - -jtag_interface_t amt_jtagaccel_interface = -{ - .name = "amt_jtagaccel", - - .execute_queue = amt_jtagaccel_execute_queue, - - .speed = amt_jtagaccel_speed, - .register_commands = amt_jtagaccel_register_commands, - .init = amt_jtagaccel_init, - .quit = amt_jtagaccel_quit, -}; - -int amt_jtagaccel_register_commands(struct command_context_s *cmd_ctx) -{ - register_command(cmd_ctx, NULL, "parport_port", amt_jtagaccel_handle_parport_port_command, - COMMAND_CONFIG, NULL); - register_command(cmd_ctx, NULL, "rtck", amt_jtagaccel_handle_rtck_command, - COMMAND_CONFIG, NULL); - - return ERROR_OK; -} - -void amt_jtagaccel_reset(int trst, int srst) -{ - if (trst == 1) - aw_control_rst |= 0x4; - else if (trst == 0) - aw_control_rst &= ~0x4; - - if (srst == 1) - aw_control_rst |= 0x1; - else if (srst == 0) - aw_control_rst &= ~0x1; - - AMT_AW(aw_control_rst); -} - -int amt_jtagaccel_speed(int speed) -{ - aw_control_baudrate &= 0xf0; - aw_control_baudrate |= speed & 0x0f; - AMT_AW(aw_control_baudrate); - - return ERROR_OK; -} - -void amt_jtagaccel_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 amt_wait_scan_busy() -{ - int timeout = 4096; - u8 ar_status; - - AMT_AR(ar_status); - while (((ar_status) & 0x80) && (timeout-- > 0)) - AMT_AR(ar_status); - - if (ar_status & 0x80) - { - ERROR("amt_jtagaccel timed out while waiting for end of scan, rtck was %s, last AR_STATUS: 0x%2.2x", (rtck_enabled) ? "enabled" : "disabled", ar_status); - exit(-1); - } -} - -void amt_jtagaccel_state_move(void) -{ - u8 aw_scan_tms_5; - u8 tms_scan[2]; - - tms_scan[0] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][0]; - tms_scan[1] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][1]; - - aw_scan_tms_5 = 0x40 | (tms_scan[0] & 0x1f); - AMT_AW(aw_scan_tms_5); - if (jtag_speed > 3 || rtck_enabled) - amt_wait_scan_busy(); - - if (tms_scan[0] & 0x80) - { - aw_scan_tms_5 = 0x40 | (tms_scan[1] & 0x1f); - AMT_AW(aw_scan_tms_5); - if (jtag_speed > 3 || rtck_enabled) - amt_wait_scan_busy(); - } - - cur_state = end_state; -} - -void amt_jtagaccel_runtest(int num_cycles) -{ - int i = 0; - u8 aw_scan_tms_5; - u8 aw_scan_tms_1to4; - - enum tap_state saved_end_state = end_state; - - /* only do a state_move when we're not already in RTI */ - if (cur_state != TAP_RTI) - { - amt_jtagaccel_end_state(TAP_RTI); - amt_jtagaccel_state_move(); - } - - while (num_cycles - i >= 5) - { - aw_scan_tms_5 = 0x40; - AMT_AW(aw_scan_tms_5); - i += 5; - } - - if (num_cycles - i > 0) - { - aw_scan_tms_1to4 = 0x80 | ((num_cycles - i - 1) & 0x3) << 4; - AMT_AW(aw_scan_tms_1to4); - } - - amt_jtagaccel_end_state(saved_end_state); - if (cur_state != end_state) - amt_jtagaccel_state_move(); -} - -void amt_jtagaccel_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 aw_tdi_option; - u8 dw_tdi_scan; - u8 dr_tdo; - u8 aw_tms_scan; - u8 tms_scan[2]; - - if (ir_scan) - amt_jtagaccel_end_state(TAP_SI); - else - amt_jtagaccel_end_state(TAP_SD); - - amt_jtagaccel_state_move(); - amt_jtagaccel_end_state(saved_end_state); - - /* handle unaligned bits at the beginning */ - if ((scan_size - 1) % 8) - { - aw_tdi_option = 0x30 | (((scan_size - 1) % 8) - 1); - AMT_AW(aw_tdi_option); - - dw_tdi_scan = buf_get_u32(buffer, bit_count, (scan_size - 1) % 8) & 0xff; - AMT_DW(dw_tdi_scan); - if (jtag_speed > 3 || rtck_enabled) - amt_wait_scan_busy(); - - if ((type == SCAN_IN) || (type == SCAN_IO)) - { - AMT_DR(dr_tdo); - dr_tdo = dr_tdo >> (8 - ((scan_size - 1) % 8)); - buf_set_u32(buffer, bit_count, (scan_size - 1) % 8, dr_tdo); - } - - bit_count += (scan_size - 1) % 8; - bits_left -= (scan_size - 1) % 8; - } - - while (bits_left - 1 >= 8) - { - dw_tdi_scan = buf_get_u32(buffer, bit_count, 8) & 0xff; - AMT_DW(dw_tdi_scan); - if (jtag_speed > 3 || rtck_enabled) - amt_wait_scan_busy(); - - if ((type == SCAN_IN) || (type == SCAN_IO)) - { - AMT_DR(dr_tdo); - buf_set_u32(buffer, bit_count, 8, dr_tdo); - } - - bit_count += 8; - bits_left -= 8; - } - - tms_scan[0] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][0]; - tms_scan[1] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][1]; - aw_tms_scan = 0x40 | (tms_scan[0] & 0x1f) | (buf_get_u32(buffer, bit_count, 1) << 5); - AMT_AW(aw_tms_scan); - if (jtag_speed > 3 || rtck_enabled) - amt_wait_scan_busy(); - - if ((type == SCAN_IN) || (type == SCAN_IO)) - { - AMT_DR(dr_tdo); - dr_tdo = dr_tdo >> 7; - buf_set_u32(buffer, bit_count, 1, dr_tdo); - } - - if (tms_scan[0] & 0x80) - { - aw_tms_scan = 0x40 | (tms_scan[1] & 0x1f); - AMT_AW(aw_tms_scan); - if (jtag_speed > 3 || rtck_enabled) - amt_wait_scan_busy(); - } - cur_state = end_state; -} - -int amt_jtagaccel_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) - amt_jtagaccel_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; - } - amt_jtagaccel_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) - amt_jtagaccel_end_state(cmd->cmd.runtest->end_state); - amt_jtagaccel_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) - amt_jtagaccel_end_state(cmd->cmd.statemove->end_state); - amt_jtagaccel_state_move(); - 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) - amt_jtagaccel_end_state(cmd->cmd.scan->end_state); - scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer); - type = jtag_scan_type(cmd->cmd.scan); - amt_jtagaccel_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 amt_jtagaccel_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 amt_jtagaccel_init(void) -{ -#if PARPORT_USE_PPDEV == 1 - char buffer[256]; - int i = 0; - u8 control_port; -#else - u8 status_port; -#endif - u8 ar_status; - -#if PARPORT_USE_PPDEV == 1 - if (device_handle > 0) - { - ERROR("device is already opened"); - return ERROR_JTAG_INIT_FAILED; - } - - snprintf(buffer, 256, "/dev/parport%d", amt_jtagaccel_port); - device_handle = open(buffer, O_RDWR); - - 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; - } - - i = ioctl(device_handle, PPCLAIM); - if (i < 0) - { - ERROR("cannot claim device"); - return ERROR_JTAG_INIT_FAILED; - } - - i = IEEE1284_MODE_EPP; - i = ioctl(device_handle, PPSETMODE, & i); - if (i < 0) - { - ERROR(" cannot set compatible mode to device"); - return ERROR_JTAG_INIT_FAILED; - } - - control_port = 0x00; - i = ioctl(device_handle, PPWCONTROL, &control_port); - - control_port = 0x04; - i = ioctl(device_handle, PPWCONTROL, &control_port); - -#else - if (amt_jtagaccel_port == 0) - { - amt_jtagaccel_port = 0x378; - WARNING("No parport port specified, using default '0x378' (LPT1)"); - } - -#if PARPORT_USE_GIVEIO == 1 - if (amt_jtagaccel_get_giveio_access() != 0) { -#else /* PARPORT_USE_GIVEIO */ - if (ioperm(amt_jtagaccel_port, 5, 1) != 0) { -#endif /* PARPORT_USE_GIVEIO */ - ERROR("missing privileges for direct i/o"); - return ERROR_JTAG_INIT_FAILED; - } - - /* prepare epp port */ - /* clear timeout */ - status_port = inb(amt_jtagaccel_port + 1); - outb(status_port | 0x1, amt_jtagaccel_port + 1); - - /* reset epp port */ - outb(0x00, amt_jtagaccel_port + 2); - outb(0x04, amt_jtagaccel_port + 2); -#endif - - if (rtck_enabled) - { - /* set RTCK enable bit */ - aw_control_fsm |= 0x02; - } - - /* enable JTAG port */ - aw_control_fsm |= 0x04; - AMT_AW(aw_control_fsm); - - amt_jtagaccel_speed(jtag_speed); - - if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) - aw_control_rst &= ~0x8; - else - aw_control_rst |= 0x8; - - if (jtag_reset_config & RESET_SRST_PUSH_PULL) - aw_control_rst &= ~0x2; - else - aw_control_rst |= 0x2; - - amt_jtagaccel_reset(0, 0); - - /* read status register */ - AMT_AR(ar_status); - DEBUG("AR_STATUS: 0x%2.2x", ar_status); - - return ERROR_OK; -} - -int amt_jtagaccel_quit(void) -{ - - return ERROR_OK; -} - -int amt_jtagaccel_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 (amt_jtagaccel_port == 0) - amt_jtagaccel_port = strtoul(args[0], NULL, 0); - - return ERROR_OK; -} - -int amt_jtagaccel_handle_rtck_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc == 0) - { - command_print(cmd_ctx, "amt_jtagaccel RTCK feature %s", (rtck_enabled) ? "enabled" : "disabled"); - return ERROR_OK; - } - else - { - if (strcmp(args[0], "enabled") == 0) - { - rtck_enabled = 1; - } - else - { - rtck_enabled = 0; - } - } - - return ERROR_OK; -} +/***************************************************************************
+ * Copyright (C) 2005 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"
+
+/* system includes */
+
+#ifdef _WIN32
+#include "errno.h"
+#endif /* _WIN32 */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include <sys/time.h>
+#include <time.h>
+
+#if PARPORT_USE_PPDEV == 1
+#include <linux/parport.h>
+#include <linux/ppdev.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <unistd.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 amt_jtagaccel_port;
+
+/* interface variables
+ */
+static u8 aw_control_rst = 0x00;
+static u8 aw_control_fsm = 0x10;
+static u8 aw_control_baudrate = 0x20;
+
+static int rtck_enabled = 0;
+
+#if PARPORT_USE_PPDEV == 1
+static int device_handle;
+int addr_mode = IEEE1284_MODE_EPP | IEEE1284_ADDR ;
+int data_mode = IEEE1284_MODE_EPP | IEEE1284_DATA ;
+#define AMT_AW(val) do { ioctl(device_handle, PPSETMODE, &addr_mode); write(device_handle, &val, 1); } while (0)
+#define AMT_AR(val) do { ioctl(device_handle, PPSETMODE, &addr_mode); read(device_handle, &val, 1); } while (0)
+#define AMT_DW(val) do { ioctl(device_handle, PPSETMODE, &data_mode); write(device_handle, &val, 1); } while (0)
+#define AMT_DR(val) do { ioctl(device_handle, PPSETMODE, &data_mode); read(device_handle, &val, 1); } while (0)
+#else
+#define AMT_AW(val) do { outb(val, amt_jtagaccel_port + 3); } while (0)
+#define AMT_AR(val) do { val = inb(amt_jtagaccel_port + 3); } while (0)
+#define AMT_DW(val) do { outb(val, amt_jtagaccel_port + 4); } while (0)
+#define AMT_DR(val) do { val = inb(amt_jtagaccel_port + 4); } while (0)
+#endif
+
+int amt_jtagaccel_execute_queue(void);
+int amt_jtagaccel_register_commands(struct command_context_s *cmd_ctx);
+int amt_jtagaccel_speed(int speed);
+int amt_jtagaccel_init(void);
+int amt_jtagaccel_quit(void);
+
+int amt_jtagaccel_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int amt_jtagaccel_handle_rtck_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+/* tap_move[i][j]: tap movement command to go from state i to state j
+ * 0: Test-Logic-Reset
+ * 1: Run-Test/Idle
+ * 2: Shift-DR
+ * 3: Pause-DR
+ * 4: Shift-IR
+ * 5: Pause-IR
+ */
+u8 amt_jtagaccel_tap_move[6][6][2] =
+{
+ /* TLR RTI SD PD SI PI */
+ {{0x1f, 0x00}, {0x0f, 0x00}, {0x8a, 0x04}, {0x0a, 0x00}, {0x06, 0x00}, {0x96, 0x00}}, /* TLR */
+ {{0x1f, 0x00}, {0x00, 0x00}, {0x85, 0x08}, {0x05, 0x00}, {0x8b, 0x08}, {0x0b, 0x00}}, /* RTI */
+ {{0x1f, 0x00}, {0x0d, 0x00}, {0x00, 0x00}, {0x01, 0x00}, {0x8f, 0x09}, {0x8f, 0x01}}, /* SD */
+ {{0x1f, 0x00}, {0x0c, 0x00}, {0x08, 0x00}, {0x00, 0x00}, {0x8f, 0x09}, {0x8f, 0x01}}, /* PD */
+ {{0x1f, 0x00}, {0x0d, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x00, 0x00}, {0x01, 0x00}}, /* SI */
+ {{0x1f, 0x00}, {0x0c, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x08, 0x00}, {0x00, 0x00}}, /* PI */
+};
+
+jtag_interface_t amt_jtagaccel_interface =
+{
+ .name = "amt_jtagaccel",
+
+ .execute_queue = amt_jtagaccel_execute_queue,
+
+ .speed = amt_jtagaccel_speed,
+ .register_commands = amt_jtagaccel_register_commands,
+ .init = amt_jtagaccel_init,
+ .quit = amt_jtagaccel_quit,
+};
+
+int amt_jtagaccel_register_commands(struct command_context_s *cmd_ctx)
+{
+ register_command(cmd_ctx, NULL, "parport_port", amt_jtagaccel_handle_parport_port_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "rtck", amt_jtagaccel_handle_rtck_command,
+ COMMAND_CONFIG, NULL);
+
+ return ERROR_OK;
+}
+
+void amt_jtagaccel_reset(int trst, int srst)
+{
+ if (trst == 1)
+ aw_control_rst |= 0x4;
+ else if (trst == 0)
+ aw_control_rst &= ~0x4;
+
+ if (srst == 1)
+ aw_control_rst |= 0x1;
+ else if (srst == 0)
+ aw_control_rst &= ~0x1;
+
+ AMT_AW(aw_control_rst);
+}
+
+int amt_jtagaccel_speed(int speed)
+{
+ aw_control_baudrate &= 0xf0;
+ aw_control_baudrate |= speed & 0x0f;
+ AMT_AW(aw_control_baudrate);
+
+ return ERROR_OK;
+}
+
+void amt_jtagaccel_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 amt_wait_scan_busy()
+{
+ int timeout = 4096;
+ u8 ar_status;
+
+ AMT_AR(ar_status);
+ while (((ar_status) & 0x80) && (timeout-- > 0))
+ AMT_AR(ar_status);
+
+ if (ar_status & 0x80)
+ {
+ ERROR("amt_jtagaccel timed out while waiting for end of scan, rtck was %s, last AR_STATUS: 0x%2.2x", (rtck_enabled) ? "enabled" : "disabled", ar_status);
+ exit(-1);
+ }
+}
+
+void amt_jtagaccel_state_move(void)
+{
+ u8 aw_scan_tms_5;
+ u8 tms_scan[2];
+
+ tms_scan[0] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][0];
+ tms_scan[1] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][1];
+
+ aw_scan_tms_5 = 0x40 | (tms_scan[0] & 0x1f);
+ AMT_AW(aw_scan_tms_5);
+ if (jtag_speed > 3 || rtck_enabled)
+ amt_wait_scan_busy();
+
+ if (tms_scan[0] & 0x80)
+ {
+ aw_scan_tms_5 = 0x40 | (tms_scan[1] & 0x1f);
+ AMT_AW(aw_scan_tms_5);
+ if (jtag_speed > 3 || rtck_enabled)
+ amt_wait_scan_busy();
+ }
+
+ cur_state = end_state;
+}
+
+void amt_jtagaccel_runtest(int num_cycles)
+{
+ int i = 0;
+ u8 aw_scan_tms_5;
+ u8 aw_scan_tms_1to4;
+
+ enum tap_state saved_end_state = end_state;
+
+ /* only do a state_move when we're not already in RTI */
+ if (cur_state != TAP_RTI)
+ {
+ amt_jtagaccel_end_state(TAP_RTI);
+ amt_jtagaccel_state_move();
+ }
+
+ while (num_cycles - i >= 5)
+ {
+ aw_scan_tms_5 = 0x40;
+ AMT_AW(aw_scan_tms_5);
+ i += 5;
+ }
+
+ if (num_cycles - i > 0)
+ {
+ aw_scan_tms_1to4 = 0x80 | ((num_cycles - i - 1) & 0x3) << 4;
+ AMT_AW(aw_scan_tms_1to4);
+ }
+
+ amt_jtagaccel_end_state(saved_end_state);
+ if (cur_state != end_state)
+ amt_jtagaccel_state_move();
+}
+
+void amt_jtagaccel_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 aw_tdi_option;
+ u8 dw_tdi_scan;
+ u8 dr_tdo;
+ u8 aw_tms_scan;
+ u8 tms_scan[2];
+
+ if (ir_scan)
+ amt_jtagaccel_end_state(TAP_SI);
+ else
+ amt_jtagaccel_end_state(TAP_SD);
+
+ amt_jtagaccel_state_move();
+ amt_jtagaccel_end_state(saved_end_state);
+
+ /* handle unaligned bits at the beginning */
+ if ((scan_size - 1) % 8)
+ {
+ aw_tdi_option = 0x30 | (((scan_size - 1) % 8) - 1);
+ AMT_AW(aw_tdi_option);
+
+ dw_tdi_scan = buf_get_u32(buffer, bit_count, (scan_size - 1) % 8) & 0xff;
+ AMT_DW(dw_tdi_scan);
+ if (jtag_speed > 3 || rtck_enabled)
+ amt_wait_scan_busy();
+
+ if ((type == SCAN_IN) || (type == SCAN_IO))
+ {
+ AMT_DR(dr_tdo);
+ dr_tdo = dr_tdo >> (8 - ((scan_size - 1) % 8));
+ buf_set_u32(buffer, bit_count, (scan_size - 1) % 8, dr_tdo);
+ }
+
+ bit_count += (scan_size - 1) % 8;
+ bits_left -= (scan_size - 1) % 8;
+ }
+
+ while (bits_left - 1 >= 8)
+ {
+ dw_tdi_scan = buf_get_u32(buffer, bit_count, 8) & 0xff;
+ AMT_DW(dw_tdi_scan);
+ if (jtag_speed > 3 || rtck_enabled)
+ amt_wait_scan_busy();
+
+ if ((type == SCAN_IN) || (type == SCAN_IO))
+ {
+ AMT_DR(dr_tdo);
+ buf_set_u32(buffer, bit_count, 8, dr_tdo);
+ }
+
+ bit_count += 8;
+ bits_left -= 8;
+ }
+
+ tms_scan[0] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][0];
+ tms_scan[1] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][1];
+ aw_tms_scan = 0x40 | (tms_scan[0] & 0x1f) | (buf_get_u32(buffer, bit_count, 1) << 5);
+ AMT_AW(aw_tms_scan);
+ if (jtag_speed > 3 || rtck_enabled)
+ amt_wait_scan_busy();
+
+ if ((type == SCAN_IN) || (type == SCAN_IO))
+ {
+ AMT_DR(dr_tdo);
+ dr_tdo = dr_tdo >> 7;
+ buf_set_u32(buffer, bit_count, 1, dr_tdo);
+ }
+
+ if (tms_scan[0] & 0x80)
+ {
+ aw_tms_scan = 0x40 | (tms_scan[1] & 0x1f);
+ AMT_AW(aw_tms_scan);
+ if (jtag_speed > 3 || rtck_enabled)
+ amt_wait_scan_busy();
+ }
+ cur_state = end_state;
+}
+
+int amt_jtagaccel_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)
+ amt_jtagaccel_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;
+ }
+ amt_jtagaccel_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)
+ amt_jtagaccel_end_state(cmd->cmd.runtest->end_state);
+ amt_jtagaccel_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)
+ amt_jtagaccel_end_state(cmd->cmd.statemove->end_state);
+ amt_jtagaccel_state_move();
+ 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)
+ amt_jtagaccel_end_state(cmd->cmd.scan->end_state);
+ scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
+ type = jtag_scan_type(cmd->cmd.scan);
+ amt_jtagaccel_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 amt_jtagaccel_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 amt_jtagaccel_init(void)
+{
+#if PARPORT_USE_PPDEV == 1
+ char buffer[256];
+ int i = 0;
+ u8 control_port;
+#else
+ u8 status_port;
+#endif
+ u8 ar_status;
+
+#if PARPORT_USE_PPDEV == 1
+ if (device_handle > 0)
+ {
+ ERROR("device is already opened");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ snprintf(buffer, 256, "/dev/parport%d", amt_jtagaccel_port);
+ device_handle = open(buffer, O_RDWR);
+
+ 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;
+ }
+
+ i = ioctl(device_handle, PPCLAIM);
+ if (i < 0)
+ {
+ ERROR("cannot claim device");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ i = IEEE1284_MODE_EPP;
+ i = ioctl(device_handle, PPSETMODE, & i);
+ if (i < 0)
+ {
+ ERROR(" cannot set compatible mode to device");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ control_port = 0x00;
+ i = ioctl(device_handle, PPWCONTROL, &control_port);
+
+ control_port = 0x04;
+ i = ioctl(device_handle, PPWCONTROL, &control_port);
+
+#else
+ if (amt_jtagaccel_port == 0)
+ {
+ amt_jtagaccel_port = 0x378;
+ WARNING("No parport port specified, using default '0x378' (LPT1)");
+ }
+
+#if PARPORT_USE_GIVEIO == 1
+ if (amt_jtagaccel_get_giveio_access() != 0) {
+#else /* PARPORT_USE_GIVEIO */
+ if (ioperm(amt_jtagaccel_port, 5, 1) != 0) {
+#endif /* PARPORT_USE_GIVEIO */
+ ERROR("missing privileges for direct i/o");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ /* prepare epp port */
+ /* clear timeout */
+ status_port = inb(amt_jtagaccel_port + 1);
+ outb(status_port | 0x1, amt_jtagaccel_port + 1);
+
+ /* reset epp port */
+ outb(0x00, amt_jtagaccel_port + 2);
+ outb(0x04, amt_jtagaccel_port + 2);
+#endif
+
+ if (rtck_enabled)
+ {
+ /* set RTCK enable bit */
+ aw_control_fsm |= 0x02;
+ }
+
+ /* enable JTAG port */
+ aw_control_fsm |= 0x04;
+ AMT_AW(aw_control_fsm);
+
+ amt_jtagaccel_speed(jtag_speed);
+
+ if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
+ aw_control_rst &= ~0x8;
+ else
+ aw_control_rst |= 0x8;
+
+ if (jtag_reset_config & RESET_SRST_PUSH_PULL)
+ aw_control_rst &= ~0x2;
+ else
+ aw_control_rst |= 0x2;
+
+ amt_jtagaccel_reset(0, 0);
+
+ /* read status register */
+ AMT_AR(ar_status);
+ DEBUG("AR_STATUS: 0x%2.2x", ar_status);
+
+ return ERROR_OK;
+}
+
+int amt_jtagaccel_quit(void)
+{
+
+ return ERROR_OK;
+}
+
+int amt_jtagaccel_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 (amt_jtagaccel_port == 0)
+ amt_jtagaccel_port = strtoul(args[0], NULL, 0);
+
+ return ERROR_OK;
+}
+
+int amt_jtagaccel_handle_rtck_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc == 0)
+ {
+ command_print(cmd_ctx, "amt_jtagaccel RTCK feature %s", (rtck_enabled) ? "enabled" : "disabled");
+ return ERROR_OK;
+ }
+ else
+ {
+ if (strcmp(args[0], "enabled") == 0)
+ {
+ rtck_enabled = 1;
+ }
+ else
+ {
+ rtck_enabled = 0;
+ }
+ }
+
+ return ERROR_OK;
+}
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