-/***************************************************************************\r
- * Copyright (C) 2005 by Dominic Rath *\r
- * Dominic.Rath@gmx.de *\r
- * *\r
- * This program is free software; you can redistribute it and/or modify *\r
- * it under the terms of the GNU General Public License as published by *\r
- * the Free Software Foundation; either version 2 of the License, or *\r
- * (at your option) any later version. *\r
- * *\r
- * This program is distributed in the hope that it will be useful, *\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *\r
- * GNU General Public License for more details. *\r
- * *\r
- * You should have received a copy of the GNU General Public License *\r
- * along with this program; if not, write to the *\r
- * Free Software Foundation, Inc., *\r
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *\r
- ***************************************************************************/\r
-#ifdef HAVE_CONFIG_H\r
-#include "config.h"\r
-#endif\r
-\r
-#include "replacements.h"\r
-\r
-#include "jtag.h"\r
-\r
-/* system includes */\r
-\r
-#ifdef _WIN32\r
-#include "errno.h"\r
-#endif /* _WIN32 */\r
-\r
-#include <string.h>\r
-#include <stdlib.h>\r
-\r
-#include <sys/time.h>\r
-#include <time.h>\r
-\r
-#if PARPORT_USE_PPDEV == 1\r
-#include <linux/parport.h>\r
-#include <linux/ppdev.h>\r
-#include <fcntl.h>\r
-#include <sys/ioctl.h>\r
-#include <unistd.h>\r
-#else /* not PARPORT_USE_PPDEV */\r
-#ifndef _WIN32\r
-#include <sys/io.h>\r
-#endif\r
-#endif\r
-\r
-#if PARPORT_USE_GIVEIO == 1\r
-#if IS_CYGWIN == 1\r
-#include <windows.h>\r
-#include <errno.h>\r
-#undef ERROR\r
-#endif\r
-#endif\r
-\r
-#include "log.h"\r
-\r
-/* configuration */\r
-u16 amt_jtagaccel_port;\r
-\r
-/* interface variables\r
- */\r
-static u8 aw_control_rst = 0x00;\r
-static u8 aw_control_fsm = 0x10;\r
-static u8 aw_control_baudrate = 0x20;\r
-\r
-static int rtck_enabled = 0;\r
-\r
-#if PARPORT_USE_PPDEV == 1\r
-static int device_handle;\r
-int addr_mode = IEEE1284_MODE_EPP | IEEE1284_ADDR ;\r
-int data_mode = IEEE1284_MODE_EPP | IEEE1284_DATA ;\r
-#define AMT_AW(val) do { ioctl(device_handle, PPSETMODE, &addr_mode); write(device_handle, &val, 1); } while (0)\r
-#define AMT_AR(val) do { ioctl(device_handle, PPSETMODE, &addr_mode); read(device_handle, &val, 1); } while (0)\r
-#define AMT_DW(val) do { ioctl(device_handle, PPSETMODE, &data_mode); write(device_handle, &val, 1); } while (0)\r
-#define AMT_DR(val) do { ioctl(device_handle, PPSETMODE, &data_mode); read(device_handle, &val, 1); } while (0)\r
-#else\r
-#define AMT_AW(val) do { outb(val, amt_jtagaccel_port + 3); } while (0)\r
-#define AMT_AR(val) do { val = inb(amt_jtagaccel_port + 3); } while (0)\r
-#define AMT_DW(val) do { outb(val, amt_jtagaccel_port + 4); } while (0)\r
-#define AMT_DR(val) do { val = inb(amt_jtagaccel_port + 4); } while (0)\r
-#endif\r
-\r
-int amt_jtagaccel_execute_queue(void);\r
-int amt_jtagaccel_register_commands(struct command_context_s *cmd_ctx);\r
-int amt_jtagaccel_speed(int speed);\r
-int amt_jtagaccel_init(void);\r
-int amt_jtagaccel_quit(void);\r
-\r
-int amt_jtagaccel_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int amt_jtagaccel_handle_rtck_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-/* tap_move[i][j]: tap movement command to go from state i to state j\r
- * 0: Test-Logic-Reset\r
- * 1: Run-Test/Idle\r
- * 2: Shift-DR\r
- * 3: Pause-DR\r
- * 4: Shift-IR\r
- * 5: Pause-IR\r
- */\r
-u8 amt_jtagaccel_tap_move[6][6][2] =\r
-{\r
- /* TLR RTI SD PD SI PI */\r
- {{0x1f, 0x00}, {0x0f, 0x00}, {0x8a, 0x04}, {0x0a, 0x00}, {0x06, 0x00}, {0x96, 0x00}}, /* TLR */\r
- {{0x1f, 0x00}, {0x00, 0x00}, {0x85, 0x08}, {0x05, 0x00}, {0x8b, 0x08}, {0x0b, 0x00}}, /* RTI */\r
- {{0x1f, 0x00}, {0x0d, 0x00}, {0x00, 0x00}, {0x01, 0x00}, {0x8f, 0x09}, {0x8f, 0x01}}, /* SD */\r
- {{0x1f, 0x00}, {0x0c, 0x00}, {0x08, 0x00}, {0x00, 0x00}, {0x8f, 0x09}, {0x8f, 0x01}}, /* PD */\r
- {{0x1f, 0x00}, {0x0d, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x00, 0x00}, {0x01, 0x00}}, /* SI */\r
- {{0x1f, 0x00}, {0x0c, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x08, 0x00}, {0x00, 0x00}}, /* PI */\r
-};\r
-\r
-jtag_interface_t amt_jtagaccel_interface = \r
-{\r
- .name = "amt_jtagaccel",\r
- \r
- .execute_queue = amt_jtagaccel_execute_queue,\r
-\r
- .speed = amt_jtagaccel_speed, \r
- .register_commands = amt_jtagaccel_register_commands,\r
- .init = amt_jtagaccel_init,\r
- .quit = amt_jtagaccel_quit,\r
-};\r
-\r
-int amt_jtagaccel_register_commands(struct command_context_s *cmd_ctx)\r
-{\r
- register_command(cmd_ctx, NULL, "parport_port", amt_jtagaccel_handle_parport_port_command,\r
- COMMAND_CONFIG, NULL);\r
- register_command(cmd_ctx, NULL, "rtck", amt_jtagaccel_handle_rtck_command,\r
- COMMAND_CONFIG, NULL);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-void amt_jtagaccel_reset(int trst, int srst)\r
-{\r
- if (trst == 1)\r
- aw_control_rst |= 0x4;\r
- else if (trst == 0)\r
- aw_control_rst &= ~0x4;\r
-\r
- if (srst == 1)\r
- aw_control_rst |= 0x1;\r
- else if (srst == 0)\r
- aw_control_rst &= ~0x1;\r
- \r
- AMT_AW(aw_control_rst);\r
-}\r
-\r
-int amt_jtagaccel_speed(int speed)\r
-{\r
- aw_control_baudrate &= 0xf0;\r
- aw_control_baudrate |= speed & 0x0f;\r
- AMT_AW(aw_control_baudrate);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-void amt_jtagaccel_end_state(state)\r
-{\r
- if (tap_move_map[state] != -1)\r
- end_state = state;\r
- else\r
- {\r
- ERROR("BUG: %i is not a valid end state", state);\r
- exit(-1);\r
- }\r
-}\r
-\r
-void amt_wait_scan_busy()\r
-{\r
- int timeout = 4096;\r
- u8 ar_status;\r
- \r
- AMT_AR(ar_status);\r
- while (((ar_status) & 0x80) && (timeout-- > 0))\r
- AMT_AR(ar_status);\r
- \r
- if (ar_status & 0x80)\r
- {\r
- 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);\r
- exit(-1);\r
- }\r
-}\r
-\r
-void amt_jtagaccel_state_move(void)\r
-{\r
- u8 aw_scan_tms_5;\r
- u8 tms_scan[2];\r
- \r
- tms_scan[0] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][0];\r
- tms_scan[1] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][1];\r
- \r
- aw_scan_tms_5 = 0x40 | (tms_scan[0] & 0x1f);\r
- AMT_AW(aw_scan_tms_5);\r
- if (jtag_speed > 3 || rtck_enabled)\r
- amt_wait_scan_busy();\r
- \r
- if (tms_scan[0] & 0x80)\r
- {\r
- aw_scan_tms_5 = 0x40 | (tms_scan[1] & 0x1f);\r
- AMT_AW(aw_scan_tms_5);\r
- if (jtag_speed > 3 || rtck_enabled)\r
- amt_wait_scan_busy();\r
- }\r
- \r
- cur_state = end_state;\r
-}\r
-\r
-void amt_jtagaccel_runtest(int num_cycles)\r
-{\r
- int i = 0;\r
- u8 aw_scan_tms_5;\r
- u8 aw_scan_tms_1to4;\r
-\r
- enum tap_state saved_end_state = end_state;\r
- \r
- /* only do a state_move when we're not already in RTI */\r
- if (cur_state != TAP_RTI)\r
- {\r
- amt_jtagaccel_end_state(TAP_RTI);\r
- amt_jtagaccel_state_move();\r
- }\r
- \r
- while (num_cycles - i >= 5)\r
- {\r
- aw_scan_tms_5 = 0x40;\r
- AMT_AW(aw_scan_tms_5);\r
- i += 5;\r
- }\r
- \r
- if (num_cycles - i > 0)\r
- {\r
- aw_scan_tms_1to4 = 0x80 | ((num_cycles - i - 1) & 0x3) << 4;\r
- AMT_AW(aw_scan_tms_1to4);\r
- }\r
- \r
- amt_jtagaccel_end_state(saved_end_state);\r
- if (cur_state != end_state)\r
- amt_jtagaccel_state_move();\r
-}\r
-\r
-void amt_jtagaccel_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)\r
-{\r
- int bits_left = scan_size;\r
- int bit_count = 0;\r
- enum tap_state saved_end_state = end_state;\r
- u8 aw_tdi_option;\r
- u8 dw_tdi_scan;\r
- u8 dr_tdo;\r
- u8 aw_tms_scan;\r
- u8 tms_scan[2];\r
-\r
- if (ir_scan)\r
- amt_jtagaccel_end_state(TAP_SI);\r
- else\r
- amt_jtagaccel_end_state(TAP_SD);\r
-\r
- amt_jtagaccel_state_move();\r
- amt_jtagaccel_end_state(saved_end_state);\r
-\r
- /* handle unaligned bits at the beginning */\r
- if ((scan_size - 1) % 8)\r
- {\r
- aw_tdi_option = 0x30 | (((scan_size - 1) % 8) - 1);\r
- AMT_AW(aw_tdi_option);\r
- \r
- dw_tdi_scan = buf_get_u32(buffer, bit_count, (scan_size - 1) % 8) & 0xff;\r
- AMT_DW(dw_tdi_scan);\r
- if (jtag_speed > 3 || rtck_enabled)\r
- amt_wait_scan_busy();\r
-\r
- if ((type == SCAN_IN) || (type == SCAN_IO))\r
- {\r
- AMT_DR(dr_tdo);\r
- dr_tdo = dr_tdo >> (8 - ((scan_size - 1) % 8));\r
- buf_set_u32(buffer, bit_count, (scan_size - 1) % 8, dr_tdo);\r
- }\r
- \r
- bit_count += (scan_size - 1) % 8;\r
- bits_left -= (scan_size - 1) % 8;\r
- }\r
- \r
- while (bits_left - 1 >= 8)\r
- {\r
- dw_tdi_scan = buf_get_u32(buffer, bit_count, 8) & 0xff;\r
- AMT_DW(dw_tdi_scan);\r
- if (jtag_speed > 3 || rtck_enabled)\r
- amt_wait_scan_busy();\r
-\r
- if ((type == SCAN_IN) || (type == SCAN_IO))\r
- {\r
- AMT_DR(dr_tdo);\r
- buf_set_u32(buffer, bit_count, 8, dr_tdo);\r
- }\r
- \r
- bit_count += 8;\r
- bits_left -= 8;\r
- }\r
- \r
- tms_scan[0] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][0];\r
- tms_scan[1] = amt_jtagaccel_tap_move[tap_move_map[cur_state]][tap_move_map[end_state]][1];\r
- aw_tms_scan = 0x40 | (tms_scan[0] & 0x1f) | (buf_get_u32(buffer, bit_count, 1) << 5);\r
- AMT_AW(aw_tms_scan);\r
- if (jtag_speed > 3 || rtck_enabled)\r
- amt_wait_scan_busy();\r
-\r
- if ((type == SCAN_IN) || (type == SCAN_IO))\r
- {\r
- AMT_DR(dr_tdo);\r
- dr_tdo = dr_tdo >> 7;\r
- buf_set_u32(buffer, bit_count, 1, dr_tdo);\r
- }\r
- \r
- if (tms_scan[0] & 0x80)\r
- {\r
- aw_tms_scan = 0x40 | (tms_scan[1] & 0x1f);\r
- AMT_AW(aw_tms_scan);\r
- if (jtag_speed > 3 || rtck_enabled)\r
- amt_wait_scan_busy();\r
- }\r
- cur_state = end_state;\r
-}\r
-\r
-int amt_jtagaccel_execute_queue(void)\r
-{\r
- jtag_command_t *cmd = jtag_command_queue; /* currently processed command */\r
- int scan_size;\r
- enum scan_type type;\r
- u8 *buffer;\r
- int retval;\r
- \r
- /* return ERROR_OK, unless a jtag_read_buffer returns a failed check\r
- * that wasn't handled by a caller-provided error handler\r
- */ \r
- retval = ERROR_OK;\r
- \r
- while (cmd)\r
- {\r
- switch (cmd->type)\r
- {\r
- case JTAG_END_STATE:\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("end_state: %i", cmd->cmd.end_state->end_state);\r
-#endif\r
- if (cmd->cmd.end_state->end_state != -1)\r
- amt_jtagaccel_end_state(cmd->cmd.end_state->end_state);\r
- break;\r
- case JTAG_RESET:\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);\r
-#endif\r
- if (cmd->cmd.reset->trst == 1)\r
- {\r
- cur_state = TAP_TLR;\r
- }\r
- amt_jtagaccel_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);\r
- break;\r
- case JTAG_RUNTEST:\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state);\r
-#endif\r
- if (cmd->cmd.runtest->end_state != -1)\r
- amt_jtagaccel_end_state(cmd->cmd.runtest->end_state);\r
- amt_jtagaccel_runtest(cmd->cmd.runtest->num_cycles);\r
- break;\r
- case JTAG_STATEMOVE:\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);\r
-#endif\r
- if (cmd->cmd.statemove->end_state != -1)\r
- amt_jtagaccel_end_state(cmd->cmd.statemove->end_state);\r
- amt_jtagaccel_state_move();\r
- break;\r
- case JTAG_SCAN:\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("scan end in %i", cmd->cmd.scan->end_state);\r
-#endif\r
- if (cmd->cmd.scan->end_state != -1)\r
- amt_jtagaccel_end_state(cmd->cmd.scan->end_state);\r
- scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);\r
- type = jtag_scan_type(cmd->cmd.scan);\r
- amt_jtagaccel_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);\r
- if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)\r
- retval = ERROR_JTAG_QUEUE_FAILED;\r
- if (buffer)\r
- free(buffer);\r
- break;\r
- case JTAG_SLEEP:\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("sleep %i", cmd->cmd.sleep->us);\r
-#endif\r
- jtag_sleep(cmd->cmd.sleep->us);\r
- break;\r
- default:\r
- ERROR("BUG: unknown JTAG command type encountered");\r
- exit(-1);\r
- }\r
- cmd = cmd->next;\r
- }\r
- \r
- return retval;\r
-}\r
-\r
-#if PARPORT_USE_GIVEIO == 1\r
-int amt_jtagaccel_get_giveio_access()\r
-{\r
- HANDLE h;\r
- OSVERSIONINFO version;\r
-\r
- version.dwOSVersionInfoSize = sizeof version;\r
- if (!GetVersionEx( &version )) {\r
- errno = EINVAL;\r
- return -1;\r
- }\r
- if (version.dwPlatformId != VER_PLATFORM_WIN32_NT)\r
- return 0;\r
-\r
- h = CreateFile( "\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );\r
- if (h == INVALID_HANDLE_VALUE) {\r
- errno = ENODEV;\r
- return -1;\r
- }\r
-\r
- CloseHandle( h );\r
-\r
- return 0;\r
-}\r
-#endif\r
-\r
-int amt_jtagaccel_init(void)\r
-{\r
-#if PARPORT_USE_PPDEV == 1\r
- char buffer[256];\r
- int i = 0;\r
- u8 control_port;\r
-#else\r
- u8 status_port;\r
-#endif\r
- u8 ar_status;\r
- \r
-#if PARPORT_USE_PPDEV == 1\r
- if (device_handle > 0)\r
- {\r
- ERROR("device is already opened");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
-\r
- snprintf(buffer, 256, "/dev/parport%d", amt_jtagaccel_port);\r
- device_handle = open(buffer, O_RDWR);\r
- \r
- if (device_handle < 0)\r
- {\r
- ERROR("cannot open device. check it exists and that user read and write rights are set");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
-\r
- i = ioctl(device_handle, PPCLAIM);\r
- if (i < 0)\r
- {\r
- ERROR("cannot claim device");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
-\r
- i = IEEE1284_MODE_EPP;\r
- i = ioctl(device_handle, PPSETMODE, & i);\r
- if (i < 0)\r
- {\r
- ERROR(" cannot set compatible mode to device");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- \r
- control_port = 0x00;\r
- i = ioctl(device_handle, PPWCONTROL, &control_port);\r
-\r
- control_port = 0x04;\r
- i = ioctl(device_handle, PPWCONTROL, &control_port);\r
-\r
-#else\r
- if (amt_jtagaccel_port == 0)\r
- {\r
- amt_jtagaccel_port = 0x378;\r
- WARNING("No parport port specified, using default '0x378' (LPT1)");\r
- }\r
-\r
-#if PARPORT_USE_GIVEIO == 1\r
- if (amt_jtagaccel_get_giveio_access() != 0) {\r
-#else /* PARPORT_USE_GIVEIO */ \r
- if (ioperm(amt_jtagaccel_port, 5, 1) != 0) {\r
-#endif /* PARPORT_USE_GIVEIO */\r
- ERROR("missing privileges for direct i/o");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- \r
- /* prepare epp port */\r
- /* clear timeout */\r
- status_port = inb(amt_jtagaccel_port + 1);\r
- outb(status_port | 0x1, amt_jtagaccel_port + 1);\r
- \r
- /* reset epp port */\r
- outb(0x00, amt_jtagaccel_port + 2);\r
- outb(0x04, amt_jtagaccel_port + 2);\r
-#endif\r
- \r
- if (rtck_enabled)\r
- { \r
- /* set RTCK enable bit */\r
- aw_control_fsm |= 0x02;\r
- }\r
- \r
- /* enable JTAG port */\r
- aw_control_fsm |= 0x04;\r
- AMT_AW(aw_control_fsm);\r
- \r
- amt_jtagaccel_speed(jtag_speed);\r
- \r
- if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)\r
- aw_control_rst &= ~0x8;\r
- else\r
- aw_control_rst |= 0x8;\r
- \r
- if (jtag_reset_config & RESET_SRST_PUSH_PULL)\r
- aw_control_rst &= ~0x2;\r
- else\r
- aw_control_rst |= 0x2;\r
- \r
- amt_jtagaccel_reset(0, 0);\r
- \r
- /* read status register */\r
- AMT_AR(ar_status);\r
- DEBUG("AR_STATUS: 0x%2.2x", ar_status);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int amt_jtagaccel_quit(void)\r
-{\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int amt_jtagaccel_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc == 0)\r
- return ERROR_OK;\r
-\r
- /* only if the port wasn't overwritten by cmdline */\r
- if (amt_jtagaccel_port == 0)\r
- amt_jtagaccel_port = strtoul(args[0], NULL, 0);\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int amt_jtagaccel_handle_rtck_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc == 0)\r
- {\r
- command_print(cmd_ctx, "amt_jtagaccel RTCK feature %s", (rtck_enabled) ? "enabled" : "disabled");\r
- return ERROR_OK;\r
- }\r
- else\r
- {\r
- if (strcmp(args[0], "enabled") == 0)\r
- {\r
- rtck_enabled = 1;\r
- }\r
- else\r
- {\r
- rtck_enabled = 0;\r
- }\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
+/***************************************************************************
+ * 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
+
+#define INCLUDE_JTAG_INTERFACE_H
+#include "jtag.h"
+
+
+#if PARPORT_USE_PPDEV == 1
+#include <linux/parport.h>
+#include <linux/ppdev.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>
+#endif
+#endif
+
+/* configuration */
+static 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;
+
+static int addr_mode = IEEE1284_MODE_EPP | IEEE1284_ADDR ;
+#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)
+
+static int data_mode = IEEE1284_MODE_EPP | IEEE1284_DATA ;
+#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 // PARPORT_USE_PPDEV
+
+static int amt_jtagaccel_execute_queue(void);
+static int amt_jtagaccel_register_commands(struct command_context_s *cmd_ctx);
+static int amt_jtagaccel_speed(int speed);
+static int amt_jtagaccel_init(void);
+static int amt_jtagaccel_quit(void);
+
+static int amt_jtagaccel_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+static 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
+ */
+static u8 amt_jtagaccel_tap_move[6][6][2] =
+{
+ /* RESET IDLE DRSHIFT DRPAUSE IRSHIFT IRPAUSE */
+ {{0x1f, 0x00}, {0x0f, 0x00}, {0x8a, 0x04}, {0x0a, 0x00}, {0x06, 0x00}, {0x96, 0x00}}, /* RESET */
+ {{0x1f, 0x00}, {0x00, 0x00}, {0x85, 0x08}, {0x05, 0x00}, {0x8b, 0x08}, {0x0b, 0x00}}, /* IDLE */
+ {{0x1f, 0x00}, {0x0d, 0x00}, {0x00, 0x00}, {0x01, 0x00}, {0x8f, 0x09}, {0x8f, 0x01}}, /* DRSHIFT */
+ {{0x1f, 0x00}, {0x0c, 0x00}, {0x08, 0x00}, {0x00, 0x00}, {0x8f, 0x09}, {0x8f, 0x01}}, /* DRPAUSE */
+ {{0x1f, 0x00}, {0x0d, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x00, 0x00}, {0x01, 0x00}}, /* IRSHIFT */
+ {{0x1f, 0x00}, {0x0c, 0x00}, {0x07, 0x00}, {0x97, 0x00}, {0x08, 0x00}, {0x00, 0x00}}, /* IRPAUSE */
+};
+
+
+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,
+};
+
+static 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;
+}
+
+static 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);
+}
+
+static int amt_jtagaccel_speed(int speed)
+{
+ aw_control_baudrate &= 0xf0;
+ aw_control_baudrate |= speed & 0x0f;
+ AMT_AW(aw_control_baudrate);
+
+ return ERROR_OK;
+}
+
+static void amt_jtagaccel_end_state(tap_state_t state)
+{
+ if (tap_is_state_stable(state))
+ tap_set_end_state(state);
+ else
+ {
+ LOG_ERROR("BUG: %i is not a valid end state", state);
+ exit(-1);
+ }
+}
+
+static void amt_wait_scan_busy(void)
+{
+ int timeout = 4096;
+ u8 ar_status;
+
+ AMT_AR(ar_status);
+ while (((ar_status) & 0x80) && (timeout-- > 0))
+ AMT_AR(ar_status);
+
+ if (ar_status & 0x80)
+ {
+ LOG_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);
+ }
+}
+
+static void amt_jtagaccel_state_move(void)
+{
+ u8 aw_scan_tms_5;
+ u8 tms_scan[2];
+
+ tap_state_t cur_state = tap_get_state();
+ tap_state_t end_state = tap_get_end_state();
+
+ tms_scan[0] = amt_jtagaccel_tap_move[tap_move_ndx(cur_state)][tap_move_ndx(end_state)][0];
+ tms_scan[1] = amt_jtagaccel_tap_move[tap_move_ndx(cur_state)][tap_move_ndx(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();
+ }
+
+ tap_set_state(end_state);
+}
+
+static void amt_jtagaccel_runtest(int num_cycles)
+{
+ int i = 0;
+ u8 aw_scan_tms_5;
+ u8 aw_scan_tms_1to4;
+
+ tap_state_t saved_end_state = tap_get_end_state();
+
+ /* only do a state_move when we're not already in IDLE */
+ if (tap_get_state() != TAP_IDLE)
+ {
+ amt_jtagaccel_end_state(TAP_IDLE);
+ 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 (tap_get_state() != tap_get_end_state())
+ amt_jtagaccel_state_move();
+}
+
+static void amt_jtagaccel_scan(bool ir_scan, enum scan_type type, u8 *buffer, int scan_size)
+{
+ int bits_left = scan_size;
+ int bit_count = 0;
+ tap_state_t saved_end_state = tap_get_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_IRSHIFT);
+ else
+ amt_jtagaccel_end_state(TAP_DRSHIFT);
+
+ 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_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())][0];
+ tms_scan[1] = amt_jtagaccel_tap_move[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_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();
+ }
+ tap_set_state(tap_get_end_state());
+}
+
+static 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_RESET:
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+#endif
+ if (cmd->cmd.reset->trst == 1)
+ {
+ tap_set_state(TAP_RESET);
+ }
+ amt_jtagaccel_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+ break;
+ case JTAG_RUNTEST:
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state);
+#endif
+ if (cmd->cmd.runtest->end_state != TAP_INVALID)
+ 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_
+ LOG_DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);
+#endif
+ if (cmd->cmd.statemove->end_state != TAP_INVALID)
+ amt_jtagaccel_end_state(cmd->cmd.statemove->end_state);
+ amt_jtagaccel_state_move();
+ break;
+ case JTAG_SCAN:
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("scan end in %i", cmd->cmd.scan->end_state);
+#endif
+ if (cmd->cmd.scan->end_state != TAP_INVALID)
+ 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_
+ LOG_DEBUG("sleep %i", cmd->cmd.sleep->us);
+#endif
+ jtag_sleep(cmd->cmd.sleep->us);
+ break;
+ default:
+ LOG_ERROR("BUG: unknown JTAG command type encountered");
+ exit(-1);
+ }
+ cmd = cmd->next;
+ }
+
+ return retval;
+}
+
+#if PARPORT_USE_GIVEIO == 1
+int amt_jtagaccel_get_giveio_access(void)
+{
+ 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
+
+static 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)
+ {
+ LOG_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)
+ {
+ LOG_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)
+ {
+ LOG_ERROR("cannot claim device");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ i = IEEE1284_MODE_EPP;
+ i = ioctl(device_handle, PPSETMODE, & i);
+ if (i < 0)
+ {
+ LOG_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;
+ LOG_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 */
+ LOG_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);
+ LOG_DEBUG("AR_STATUS: 0x%2.2x", ar_status);
+
+ return ERROR_OK;
+}
+
+static int amt_jtagaccel_quit(void)
+{
+
+ return ERROR_OK;
+}
+
+static 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;
+}
+
+static 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;
+}
projects / fw / openocd / blobdiff