-/***************************************************************************\r
- * Copyright (C) 2006 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
-#if 1\r
-#define _DEBUG_GW16012_IO_\r
-#endif\r
-\r
-/* system includes */\r
-// -ino: 060521-1036\r
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)\r
-\r
-#include <sys/types.h>\r
-#include <machine/sysarch.h>\r
-#include <machine/cpufunc.h>\r
-#define ioperm(startport,length,enable)\\r
- i386_set_ioperm((startport), (length), (enable))\r
-\r
-#else\r
-\r
-#ifdef _WIN32\r
-#include "errno.h"\r
-#endif /* _WIN32 */\r
-\r
-#endif /* __FreeBSD__, __FreeBSD_kernel__ */\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
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)\r
-#include <dev/ppbus/ppi.h>\r
-#include <dev/ppbus/ppbconf.h>\r
-#define PPRSTATUS PPIGSTATUS\r
-#define PPWDATA PPISDATA\r
-#else\r
-#include <linux/parport.h>\r
-#include <linux/ppdev.h>\r
-#endif\r
-#include <fcntl.h>\r
-#include <sys/ioctl.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 gw16012_port;\r
-\r
-/* interface variables\r
- */\r
-static u8 gw16012_msb = 0x0;\r
-static u8 gw16012_control_value = 0x0;\r
-\r
-#if PARPORT_USE_PPDEV == 1\r
-static int device_handle;\r
-#endif\r
-\r
-int gw16012_execute_queue(void);\r
-int gw16012_register_commands(struct command_context_s *cmd_ctx);\r
-int gw16012_speed(int speed);\r
-int gw16012_init(void);\r
-int gw16012_quit(void);\r
-\r
-int gw16012_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-jtag_interface_t gw16012_interface = \r
-{\r
- .name = "gw16012",\r
- \r
- .execute_queue = gw16012_execute_queue,\r
-\r
- .speed = gw16012_speed, \r
- .register_commands = gw16012_register_commands,\r
- .init = gw16012_init,\r
- .quit = gw16012_quit,\r
-};\r
-\r
-int gw16012_register_commands(struct command_context_s *cmd_ctx)\r
-{\r
- register_command(cmd_ctx, NULL, "parport_port", gw16012_handle_parport_port_command,\r
- COMMAND_CONFIG, NULL);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-void gw16012_data(u8 value)\r
-{\r
- value = (value & 0x7f) | gw16012_msb;\r
- gw16012_msb ^= 0x80; /* toggle MSB */\r
-\r
-#ifdef _DEBUG_GW16012_IO_\r
- DEBUG("%2.2x", value);\r
-#endif\r
- \r
- #if PARPORT_USE_PPDEV == 1\r
- ioctl(device_handle, PPWDATA, &value);\r
- #else\r
- #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)\r
- outb(gw16012_port, value);\r
- #else\r
- outb(value, gw16012_port);\r
- #endif\r
- #endif \r
-}\r
-\r
-void gw16012_control(u8 value)\r
-{\r
- if (value != gw16012_control_value)\r
- {\r
- gw16012_control_value = value;\r
-\r
-#ifdef _DEBUG_GW16012_IO_\r
- DEBUG("%2.2x", gw16012_control_value);\r
-#endif\r
-\r
- #if PARPORT_USE_PPDEV == 1\r
- ioctl(device_handle, PPWCONTROL, &gw16012_control_value);\r
- #else\r
- #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)\r
- outb(gw16012_port + 2, gw16012_control_value);\r
- #else\r
- outb(gw16012_control_value, gw16012_port + 2);\r
- #endif\r
- #endif\r
- }\r
-}\r
-\r
-void gw16012_input(u8 *value)\r
-{\r
- #if PARPORT_USE_PPDEV == 1\r
- ioctl(device_handle, PPRSTATUS, value);\r
- #else\r
- *value = inb(gw16012_port + 1);\r
- #endif\r
-\r
-#ifdef _DEBUG_GW16012_IO_\r
- DEBUG("%2.2x", *value);\r
-#endif\r
-}\r
-\r
-/* (1) assert or (0) deassert reset lines */\r
-void gw16012_reset(int trst, int srst)\r
-{\r
- DEBUG("trst: %i, srst: %i", trst, srst);\r
-\r
- if (trst == 0)\r
- gw16012_control(0x0d);\r
- else if (trst == 1)\r
- gw16012_control(0x0c);\r
-\r
- if (srst == 0)\r
- gw16012_control(0x0a);\r
- else if (srst == 1)\r
- gw16012_control(0x0b);\r
-}\r
-\r
-int gw16012_speed(int speed)\r
-{\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-void gw16012_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 gw16012_state_move(void)\r
-{\r
- int i=0, tms=0;\r
- u8 tms_scan = TAP_MOVE(cur_state, end_state);\r
- \r
- gw16012_control(0x0); /* single-bit mode */\r
- \r
- for (i = 0; i < 7; i++)\r
- {\r
- tms = (tms_scan >> i) & 1;\r
- gw16012_data(tms << 1); /* output next TMS bit */\r
- }\r
- \r
- cur_state = end_state;\r
-}\r
-\r
-void gw16012_path_move(pathmove_command_t *cmd)\r
-{\r
- int num_states = cmd->num_states;\r
- int state_count;\r
-\r
- state_count = 0;\r
- while (num_states)\r
- {\r
- gw16012_control(0x0); /* single-bit mode */\r
- if (tap_transitions[cur_state].low == cmd->path[state_count])\r
- {\r
- gw16012_data(0x0); /* TCK cycle with TMS low */\r
- }\r
- else if (tap_transitions[cur_state].high == cmd->path[state_count])\r
- {\r
- gw16012_data(0x2); /* TCK cycle with TMS high */\r
- }\r
- else\r
- {\r
- ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);\r
- exit(-1);\r
- }\r
- \r
- cur_state = cmd->path[state_count];\r
- state_count++;\r
- num_states--;\r
- }\r
- \r
- end_state = cur_state;\r
-}\r
-\r
-void gw16012_runtest(int num_cycles)\r
-{\r
- enum tap_state saved_end_state = end_state;\r
- int i;\r
- \r
- /* only do a state_move when we're not already in RTI */\r
- if (cur_state != TAP_RTI)\r
- {\r
- gw16012_end_state(TAP_RTI);\r
- gw16012_state_move();\r
- }\r
- \r
- for (i = 0; i < num_cycles; i++)\r
- {\r
- gw16012_control(0x0); /* single-bit mode */\r
- gw16012_data(0x0); /* TMS cycle with TMS low */\r
- }\r
- \r
- gw16012_end_state(saved_end_state);\r
- if (cur_state != end_state)\r
- gw16012_state_move();\r
-}\r
-\r
-void gw16012_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 scan_out, scan_in;\r
-\r
- /* only if we're not already in the correct Shift state */\r
- if (!((!ir_scan && (cur_state == TAP_SD)) || (ir_scan && (cur_state == TAP_SI))))\r
- {\r
- if (ir_scan)\r
- gw16012_end_state(TAP_SI);\r
- else\r
- gw16012_end_state(TAP_SD);\r
-\r
- gw16012_state_move();\r
- gw16012_end_state(saved_end_state);\r
- }\r
-\r
- while (type == SCAN_OUT && ((bits_left - 1) > 7))\r
- {\r
- gw16012_control(0x2); /* seven-bit mode */\r
- scan_out = buf_get_u32(buffer, bit_count, 7);\r
- gw16012_data(scan_out);\r
- bit_count += 7;\r
- bits_left -= 7;\r
- }\r
- \r
- gw16012_control(0x0); /* single-bit mode */\r
- while (bits_left-- > 0)\r
- {\r
- u8 tms = 0;\r
- \r
- scan_out = buf_get_u32(buffer, bit_count, 1);\r
- \r
- if (bits_left == 0) /* last bit */\r
- {\r
- if ((ir_scan && (end_state == TAP_SI))\r
- || (!ir_scan && (end_state == TAP_SD)))\r
- {\r
- tms = 0; \r
- }\r
- else\r
- {\r
- tms = 2;\r
- }\r
- }\r
-\r
- gw16012_data(scan_out | tms);\r
-\r
- if (type != SCAN_OUT)\r
- {\r
- gw16012_input(&scan_in);\r
- buf_set_u32(buffer, bit_count, 1, ((scan_in & 0x08) >> 3));\r
- } \r
-\r
- bit_count++;\r
- }\r
-\r
- if (!((ir_scan && (end_state == TAP_SI)) ||\r
- (!ir_scan && (end_state == TAP_SD))))\r
- {\r
- gw16012_data(0x0);\r
- if (ir_scan)\r
- cur_state = TAP_PI;\r
- else\r
- cur_state = TAP_PD;\r
- \r
- if (cur_state != end_state)\r
- gw16012_state_move();\r
- }\r
-}\r
-\r
-int gw16012_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
- gw16012_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
- gw16012_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
- gw16012_end_state(cmd->cmd.runtest->end_state);\r
- gw16012_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
- gw16012_end_state(cmd->cmd.statemove->end_state);\r
- gw16012_state_move();\r
- break;\r
- case JTAG_PATHMOVE:\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);\r
-#endif\r
- gw16012_path_move(cmd->cmd.pathmove);\r
- break;\r
- case JTAG_SCAN:\r
- if (cmd->cmd.scan->end_state != -1)\r
- gw16012_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
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("%s scan (%i) %i bit end in %i", (cmd->cmd.scan->ir_scan) ? "ir" : "dr", \r
- type, scan_size, cmd->cmd.scan->end_state);\r
-#endif\r
- gw16012_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 gw16012_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 gw16012_init(void)\r
-{\r
-#if PARPORT_USE_PPDEV == 1\r
- char buffer[256];\r
- int i = 0;\r
-#endif\r
- u8 status_port;\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
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)\r
- DEBUG("opening /dev/ppi%d...", gw16012_port);\r
-\r
- snprintf(buffer, 256, "/dev/ppi%d", gw16012_port);\r
- device_handle = open(buffer, O_WRONLY);\r
-#else\r
- DEBUG("opening /dev/parport%d...", gw16012_port);\r
-\r
- snprintf(buffer, 256, "/dev/parport%d", gw16012_port);\r
- device_handle = open(buffer, O_WRONLY);\r
-#endif \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
- DEBUG("...open");\r
-\r
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)\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 = PARPORT_MODE_COMPAT;\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
- i = IEEE1284_MODE_COMPAT;\r
- i = ioctl(device_handle, PPNEGOT, & i);\r
- if (i<0)\r
- {\r
- ERROR("cannot set compatible 1284 mode to device");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
-#endif\r
-#else\r
- if (gw16012_port == 0)\r
- {\r
- gw16012_port = 0x378;\r
- WARNING("No gw16012 port specified, using default '0x378' (LPT1)");\r
- }\r
- \r
- DEBUG("requesting privileges for parallel port 0x%lx...", gw16012_port);\r
-#if PARPORT_USE_GIVEIO == 1\r
- if (gw16012_get_giveio_access() != 0)\r
-#else /* PARPORT_USE_GIVEIO */\r
- if (ioperm(gw16012_port, 3, 1) != 0)\r
-#endif /* PARPORT_USE_GIVEIO */\r
- {\r
- ERROR("missing privileges for direct i/o");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- DEBUG("...privileges granted");\r
-\r
- /* make sure parallel port is in right mode (clear tristate and interrupt */\r
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)\r
- outb(gw16012_port + 2, 0x0);\r
-#else\r
- outb(0x0, gw16012_port + 2);\r
-#endif\r
-#endif /* PARPORT_USE_PPDEV */\r
- \r
- gw16012_input(&status_port);\r
- gw16012_msb = (status_port & 0x80) ^ 0x80;\r
- \r
- gw16012_speed(jtag_speed);\r
- gw16012_reset(0, 0);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int gw16012_quit(void)\r
-{\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int gw16012_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 (gw16012_port == 0)\r
- gw16012_port = strtoul(args[0], NULL, 0);\r
-\r
- return ERROR_OK;\r
-}\r
+/***************************************************************************
+ * 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 "interface.h"
+#include "commands.h"
+
+
+#if 1
+#define _DEBUG_GW16012_IO_
+#endif
+
+/* system includes */
+/* -ino: 060521-1036 */
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+
+#include <machine/sysarch.h>
+#include <machine/cpufunc.h>
+#define ioperm(startport,length,enable)\
+ i386_set_ioperm((startport), (length), (enable))
+
+#else
+
+#endif /* __FreeBSD__, __FreeBSD_kernel__ */
+
+
+#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 && IS_CYGWIN == 1
+#include <windows.h>
+#endif
+
+
+/* configuration */
+uint16_t gw16012_port;
+
+/* interface variables
+ */
+static uint8_t gw16012_msb = 0x0;
+static uint8_t gw16012_control_value = 0x0;
+
+#if PARPORT_USE_PPDEV == 1
+static int device_handle;
+#endif
+
+static int gw16012_execute_queue(void);
+static int gw16012_register_commands(struct command_context_s *cmd_ctx);
+static int gw16012_speed(int speed);
+static int gw16012_init(void);
+static int gw16012_quit(void);
+
+static 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,
+};
+
+static 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;
+}
+
+static void gw16012_data(uint8_t value)
+{
+ value = (value & 0x7f) | gw16012_msb;
+ gw16012_msb ^= 0x80; /* toggle MSB */
+
+#ifdef _DEBUG_GW16012_IO_
+ LOG_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
+}
+
+static void gw16012_control(uint8_t value)
+{
+ if (value != gw16012_control_value)
+ {
+ gw16012_control_value = value;
+
+#ifdef _DEBUG_GW16012_IO_
+ LOG_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
+ }
+}
+
+static void gw16012_input(uint8_t *value)
+{
+ #if PARPORT_USE_PPDEV == 1
+ ioctl(device_handle, PPRSTATUS, value);
+ #else
+ *value = inb(gw16012_port + 1);
+ #endif
+
+#ifdef _DEBUG_GW16012_IO_
+ LOG_DEBUG("%2.2x", *value);
+#endif
+}
+
+/* (1) assert or (0) deassert reset lines */
+static void gw16012_reset(int trst, int srst)
+{
+ LOG_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);
+}
+
+static int gw16012_speed(int speed)
+{
+
+ return ERROR_OK;
+}
+
+static void gw16012_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 gw16012_state_move(void)
+{
+ int i = 0, tms = 0;
+ uint8_t tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+ int tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
+
+ gw16012_control(0x0); /* single-bit mode */
+
+ for (i = 0; i < tms_count; i++)
+ {
+ tms = (tms_scan >> i) & 1;
+ gw16012_data(tms << 1); /* output next TMS bit */
+ }
+
+ tap_set_state(tap_get_end_state());
+}
+
+static 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_state_transition(tap_get_state(), false) == cmd->path[state_count])
+ {
+ gw16012_data(0x0); /* TCK cycle with TMS low */
+ }
+ else if (tap_state_transition(tap_get_state(), true) == cmd->path[state_count])
+ {
+ gw16012_data(0x2); /* TCK cycle with TMS high */
+ }
+ else
+ {
+ LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(cmd->path[state_count]));
+ exit(-1);
+ }
+
+ tap_set_state(cmd->path[state_count]);
+ state_count++;
+ num_states--;
+ }
+
+ tap_set_end_state(tap_get_state());
+}
+
+static void gw16012_runtest(int num_cycles)
+{
+ tap_state_t saved_end_state = tap_get_end_state();
+ int i;
+
+ /* only do a state_move when we're not already in IDLE */
+ if (tap_get_state() != TAP_IDLE)
+ {
+ gw16012_end_state(TAP_IDLE);
+ 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 (tap_get_state() != tap_get_end_state())
+ gw16012_state_move();
+}
+
+static void gw16012_scan(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size)
+{
+ int bits_left = scan_size;
+ int bit_count = 0;
+ tap_state_t saved_end_state = tap_get_end_state();
+ uint8_t scan_out, scan_in;
+
+ /* only if we're not already in the correct Shift state */
+ if (!((!ir_scan && (tap_get_state() == TAP_DRSHIFT)) || (ir_scan && (tap_get_state() == TAP_IRSHIFT))))
+ {
+ if (ir_scan)
+ gw16012_end_state(TAP_IRSHIFT);
+ else
+ gw16012_end_state(TAP_DRSHIFT);
+
+ 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)
+ {
+ uint8_t tms = 0;
+
+ scan_out = buf_get_u32(buffer, bit_count, 1);
+
+ if (bits_left == 0) /* last bit */
+ {
+ if ((ir_scan && (tap_get_end_state() == TAP_IRSHIFT))
+ || (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT)))
+ {
+ 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 && (tap_get_end_state() == TAP_IRSHIFT)) ||
+ (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT))))
+ {
+ gw16012_data(0x0);
+ if (ir_scan)
+ tap_set_state(TAP_IRPAUSE);
+ else
+ tap_set_state(TAP_DRPAUSE);
+
+ if (tap_get_state() != tap_get_end_state())
+ gw16012_state_move();
+ }
+}
+
+static int gw16012_execute_queue(void)
+{
+ jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
+ int scan_size;
+ enum scan_type type;
+ uint8_t *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);
+ }
+ gw16012_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
+ gw16012_end_state(cmd->cmd.runtest->end_state);
+ gw16012_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
+ gw16012_end_state(cmd->cmd.statemove->end_state);
+ gw16012_state_move();
+ break;
+ case JTAG_PATHMOVE:
+#ifdef _DEBUG_JTAG_IO_
+ LOG_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:
+ 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_
+ LOG_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_
+ 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
+static int gw16012_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
+
+#if PARPORT_USE_PPDEV == 1
+
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+
+#define GW16012_PPDEV_NAME "ppi"
+
+static int gw16012_init_ioctls(void)
+{
+ int temp = 0;
+ temp = ioctl(device_handle, PPCLAIM);
+ if (temp < 0)
+ {
+ LOG_ERROR("cannot claim device");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ temp = PARPORT_MODE_COMPAT;
+ temp = ioctl(device_handle, PPSETMODE, &temp);
+ if (temp < 0)
+ {
+ LOG_ERROR(" cannot set compatible mode to device");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ temp = IEEE1284_MODE_COMPAT;
+ temp = ioctl(device_handle, PPNEGOT, &temp);
+ if (temp < 0)
+ {
+ LOG_ERROR("cannot set compatible 1284 mode to device");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ return ERROR_OK;
+}
+#else
+
+#define GW16012_PPDEV_NAME "parport"
+
+static int gw16012_init_ioctls(void)
+{
+ return ERROR_OK;
+}
+
+#endif // defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+
+static int gw16012_init_device(void)
+{
+ const char *device_name = GW16012_PPDEV_NAME;
+ char buffer[256];
+
+ if (device_handle > 0)
+ {
+ LOG_ERROR("device is already opened");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ snprintf(buffer, 256, "/dev/%s%d", device_name, gw16012_port);
+ LOG_DEBUG("opening %s...", buffer);
+
+ device_handle = open(buffer, O_WRONLY);
+ 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;
+ }
+
+ LOG_DEBUG("...open");
+
+ if (gw16012_init_ioctls() != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+ return ERROR_OK;
+}
+
+#else // PARPORT_USE_PPDEV
+
+static int gw16012_init_device(void)
+{
+ if (gw16012_port == 0)
+ {
+ gw16012_port = 0x378;
+ LOG_WARNING("No gw16012 port specified, using default '0x378' (LPT1)");
+ }
+
+ LOG_DEBUG("requesting privileges for parallel port 0x%lx...", (long unsigned)(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 */
+ {
+ LOG_ERROR("missing privileges for direct i/o");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ LOG_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
+ return ERROR_OK;
+}
+
+#endif // PARPORT_USE_PPDEV
+
+static int gw16012_init(void)
+{
+ uint8_t status_port;
+
+ if (gw16012_init_device() != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+ gw16012_input(&status_port);
+ gw16012_msb = (status_port & 0x80) ^ 0x80;
+
+ gw16012_speed(jtag_get_speed());
+ gw16012_reset(0, 0);
+
+ return ERROR_OK;
+}
+
+static int gw16012_quit(void)
+{
+
+ return ERROR_OK;
+}
+
+static int gw16012_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc == 1)
+ {
+ /* only if the port wasn't overwritten by cmdline */
+ if (gw16012_port == 0)
+ {
+ int retval = parse_u16(args[0], &gw16012_port);
+ if (ERROR_OK != retval)
+ return retval;
+ }
+ else
+ {
+ LOG_ERROR("The parport port was already configured!");
+ return ERROR_FAIL;
+ }
+ }
+
+ command_print(cmd_ctx, "parport port = %u", gw16012_port);
+
+ return ERROR_OK;
+}
Code Review / openocd.git / blobdiff