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- /***************************************************************************
- * 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"
- #include "bitbang.h"
-
- /* system includes */
- // -ino: 060521-1036
- #ifdef __FreeBSD__
-
- #include <sys/types.h>
- #include <machine/sysarch.h>
- #include <machine/cpufunc.h>
- #define ioperm(startport,length,enable)\
- i386_set_ioperm((startport), (length), (enable))
-
- #else
-
- #ifdef _WIN32
- #include "errno.h"
- #endif /* _WIN32 */
-
- #endif /* __FreeBSD__ */
-
- #include <string.h>
- #include <stdlib.h>
- #include <stdio.h>
-
- #if PARPORT_USE_PPDEV == 1
- #ifdef __FreeBSD__
- #include <dev/ppbus/ppi.h>
- #include <dev/ppbus/ppbconf.h>
- #define PPRSTATUS PPIGSTATUS
- #define PPWDATA PPISDATA
- #else
- #include <linux/parport.h>
- #include <linux/ppdev.h>
- #endif
- #include <fcntl.h>
- #include <sys/ioctl.h>
- #else /* not PARPORT_USE_PPDEV */
- #ifndef _WIN32
- #include <sys/io.h>
- #endif
- #endif
-
- #if PARPORT_USE_GIVEIO == 1
- #if IS_CYGWIN == 1
- #include <windows.h>
- #include <errno.h>
- #undef ERROR
- #endif
- #endif
-
- #include "log.h"
-
- /* parallel port cable description
- */
- typedef struct cable_s
- {
- char* name;
- u8 TDO_MASK; /* status port bit containing current TDO value */
- u8 TRST_MASK; /* data port bit for TRST */
- u8 TMS_MASK; /* data port bit for TMS */
- u8 TCK_MASK; /* data port bit for TCK */
- u8 TDI_MASK; /* data port bit for TDI */
- u8 SRST_MASK; /* data port bit for SRST */
- u8 OUTPUT_INVERT; /* data port bits that should be inverted */
- u8 INPUT_INVERT; /* status port that should be inverted */
- u8 PORT_INIT; /* initialize data port with this value */
- } cable_t;
-
- cable_t cables[] =
- {
- /* name tdo trst tms tck tdi srst o_inv i_inv init */
- { "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80 },
- { "wiggler_ntrst_inverted", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x11, 0x80, 0x80 },
- { "old_amt_wiggler", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x11, 0x80, 0x80 },
- { "chameleon", 0x80, 0x00, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00 },
- { "dlc5", 0x10, 0x00, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00, 0x10 },
- { "triton", 0x80, 0x08, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00 },
- { "lattice", 0x40, 0x10, 0x04, 0x02, 0x01, 0x08, 0x00, 0x00, 0x18 },
- { "flashlink", 0x20, 0x10, 0x02, 0x01, 0x04, 0x20, 0x30, 0x20, 0x00 },
- { NULL, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
- };
-
- /* configuration */
- char* parport_cable;
- unsigned long parport_port;
-
- /* interface variables
- */
- static cable_t* cable;
- static u8 dataport_value = 0x0;
-
- #if PARPORT_USE_PPDEV == 1
- static int device_handle;
- #else
- static unsigned long dataport;
- static unsigned long statusport;
- #endif
-
- /* low level command set
- */
- int parport_read(void);
- void parport_write(int tck, int tms, int tdi);
- void parport_reset(int trst, int srst);
-
- int parport_speed(int speed);
- int parport_register_commands(struct command_context_s *cmd_ctx);
- int parport_init(void);
- int parport_quit(void);
-
- /* interface commands */
- int parport_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
- int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
- jtag_interface_t parport_interface =
- {
- .name = "parport",
-
- .execute_queue = bitbang_execute_queue,
-
- .support_pathmove = 1,
-
- .speed = parport_speed,
- .register_commands = parport_register_commands,
- .init = parport_init,
- .quit = parport_quit,
- };
-
- bitbang_interface_t parport_bitbang =
- {
- .read = parport_read,
- .write = parport_write,
- .reset = parport_reset
- };
-
- int parport_read(void)
- {
- int data = 0;
-
- #if PARPORT_USE_PPDEV == 1
- ioctl(device_handle, PPRSTATUS, & data);
- #else
- data = inb(statusport);
- #endif
-
- if ((data ^ cable->INPUT_INVERT) & cable->TDO_MASK)
- return 1;
- else
- return 0;
- }
-
- void parport_write(int tck, int tms, int tdi)
- {
- u8 output;
- int i = jtag_speed + 1;
-
- if (tck)
- dataport_value |= cable->TCK_MASK;
- else
- dataport_value &= ~cable->TCK_MASK;
-
- if (tms)
- dataport_value |= cable->TMS_MASK;
- else
- dataport_value &= ~cable->TMS_MASK;
-
- if (tdi)
- dataport_value |= cable->TDI_MASK;
- else
- dataport_value &= ~cable->TDI_MASK;
-
- output = dataport_value ^ cable->OUTPUT_INVERT;
-
- while (i-- > 0)
- #if PARPORT_USE_PPDEV == 1
- ioctl(device_handle, PPWDATA, &output);
- #else
- #ifdef __FreeBSD__
- outb(dataport, output);
- #else
- outb(output, dataport);
- #endif
- #endif
- }
-
- /* (1) assert or (0) deassert reset lines */
- void parport_reset(int trst, int srst)
- {
- u8 output;
- DEBUG("trst: %i, srst: %i", trst, srst);
-
- if (trst == 0)
- dataport_value |= cable->TRST_MASK;
- else if (trst == 1)
- dataport_value &= ~cable->TRST_MASK;
-
- if (srst == 0)
- dataport_value |= cable->SRST_MASK;
- else if (srst == 1)
- dataport_value &= ~cable->SRST_MASK;
-
- output = dataport_value ^ cable->OUTPUT_INVERT;
-
- #if PARPORT_USE_PPDEV == 1
- ioctl(device_handle, PPWDATA, &output);
- #else
- #ifdef __FreeBSD__
- outb(dataport, output);
- #else
- outb(output, dataport);
- #endif
- #endif
-
- }
-
- int parport_speed(int speed)
- {
- jtag_speed = speed;
-
- return ERROR_OK;
- }
-
- int parport_register_commands(struct command_context_s *cmd_ctx)
- {
- register_command(cmd_ctx, NULL, "parport_port", parport_handle_parport_port_command,
- COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "parport_cable", parport_handle_parport_cable_command,
- COMMAND_CONFIG, NULL);
-
- return ERROR_OK;
- }
-
- #if PARPORT_USE_GIVEIO == 1
- int parport_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 parport_init(void)
- {
- cable_t *cur_cable;
- #if PARPORT_USE_PPDEV == 1
- char buffer[256];
- int i = 0;
- #endif
-
- cur_cable = cables;
-
- if ((parport_cable == NULL) || (parport_cable[0] == 0))
- {
- parport_cable = "wiggler";
- WARNING("No parport cable specified, using default 'wiggler'");
- }
-
- while (cur_cable->name)
- {
- if (strcmp(cur_cable->name, parport_cable) == 0)
- {
- cable = cur_cable;
- break;
- }
- cur_cable++;
- }
-
- if (!cable)
- {
- ERROR("No matching cable found for %s", parport_cable);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- dataport_value = cable->PORT_INIT;
-
- #if PARPORT_USE_PPDEV == 1
- if (device_handle > 0)
- {
- ERROR("device is already opened");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- #ifdef __FreeBSD__
- DEBUG("opening /dev/ppi%d...", parport_port);
-
- snprintf(buffer, 256, "/dev/ppi%d", parport_port);
- device_handle = open(buffer, O_WRONLY);
- #else /* not __Free_BSD */
- DEBUG("opening /dev/parport%d...", parport_port);
-
- snprintf(buffer, 256, "/dev/parport%d", parport_port);
- device_handle = open(buffer, O_WRONLY);
- #endif /* __FreeBSD__ */
-
- if (device_handle < 0)
- {
- ERROR("cannot open device. check it exists and that user read and write rights are set");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- DEBUG("...open");
-
- #ifndef __FreeBSD__
- i=ioctl(device_handle, PPCLAIM);
- if (i<0)
- {
- ERROR("cannot claim device");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- i = PARPORT_MODE_COMPAT;
- i= ioctl(device_handle, PPSETMODE, & i);
- if (i<0)
- {
- ERROR(" cannot set compatible mode to device");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- i = IEEE1284_MODE_COMPAT;
- i = ioctl(device_handle, PPNEGOT, & i);
- if (i<0)
- {
- ERROR("cannot set compatible 1284 mode to device");
- return ERROR_JTAG_INIT_FAILED;
- }
- #endif /* not __Free_BSD__ */
-
- #else /* not PARPORT_USE_PPDEV */
- if (parport_port == 0)
- {
- parport_port = 0x378;
- WARNING("No parport port specified, using default '0x378' (LPT1)");
- }
-
- dataport = parport_port;
- statusport = parport_port + 1;
-
- DEBUG("requesting privileges for parallel port 0x%lx...", dataport);
- #if PARPORT_USE_GIVEIO == 1
- if (parport_get_giveio_access() != 0)
- #else /* PARPORT_USE_GIVEIO */
- if (ioperm(dataport, 3, 1) != 0)
- #endif /* PARPORT_USE_GIVEIO */
- {
- ERROR("missing privileges for direct i/o");
- return ERROR_JTAG_INIT_FAILED;
- }
- DEBUG("...privileges granted");
-
- /* make sure parallel port is in right mode (clear tristate and interrupt */
- #ifdef __FreeBSD__
- outb(parport_port + 2, 0x0);
- #else
- outb(0x0, parport_port + 2);
- #endif
-
- #endif /* PARPORT_USE_PPDEV */
-
- parport_reset(0, 0);
- parport_write(0, 0, 0);
-
- bitbang_interface = &parport_bitbang;
-
- return ERROR_OK;
- }
-
- int parport_quit(void)
- {
-
- return ERROR_OK;
- }
-
- int parport_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 (parport_port == 0)
- parport_port = strtoul(args[0], NULL, 0);
-
- return ERROR_OK;
- }
-
- int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
- {
- if (argc == 0)
- return ERROR_OK;
-
- /* only if the cable name wasn't overwritten by cmdline */
- if (parport_cable == 0)
- {
- parport_cable = malloc(strlen(args[0]) + sizeof(char));
- strcpy(parport_cable, args[0]);
- }
-
- return ERROR_OK;
- }
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