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Diffstat (limited to 'src/jtag/amt_jtagaccel.c')
-rw-r--r--src/jtag/amt_jtagaccel.c1154
1 files changed, 577 insertions, 577 deletions
diff --git a/src/jtag/amt_jtagaccel.c b/src/jtag/amt_jtagaccel.c
index dc40226..de3a6d3 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 */
-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;
-}
+/***************************************************************************
+ * 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;
+}
generated by cgit v1.1 at 2024-08-17 18:10:15 +0000