diff options
Diffstat (limited to 'src/jtag/parport.c')
-rw-r--r-- | src/jtag/parport.c | 982 |
1 files changed, 491 insertions, 491 deletions
diff --git a/src/jtag/parport.c b/src/jtag/parport.c index 7311bad8..1c37fd8f 100644 --- a/src/jtag/parport.c +++ b/src/jtag/parport.c @@ -1,491 +1,491 @@ -/***************************************************************************
- * 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
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-
-#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
-#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
-#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 */
- u8 PORT_EXIT; /* de-initialize data port with this value */
- u8 LED_MASK; /* data port bit for LED */
-} cable_t;
-
-cable_t cables[] =
-{
- /* name tdo trst tms tck tdi srst o_inv i_inv init exit led */
- { "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x80, 0x00 },
- { "wiggler2", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x00, 0x20 },
- { "wiggler_ntrst_inverted",
- 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x11, 0x80, 0x80, 0x80, 0x00 },
- { "old_amt_wiggler", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x11, 0x80, 0x80, 0x80, 0x00 },
- { "chameleon", 0x80, 0x00, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
- { "dlc5", 0x10, 0x00, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00 },
- { "triton", 0x80, 0x08, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
- { "lattice", 0x40, 0x10, 0x04, 0x02, 0x01, 0x08, 0x00, 0x00, 0x18, 0x18, 0x00 },
- { "flashlink", 0x20, 0x10, 0x02, 0x01, 0x04, 0x20, 0x30, 0x20, 0x00, 0x00, 0x00 },
-/* Altium Universal JTAG cable. Set the cable to Xilinx Mode and wire to target as follows:
- HARD TCK - Target TCK
- HARD TMS - Target TMS
- HARD TDI - Target TDI
- HARD TDO - Target TDO
- SOFT TCK - Target TRST
- SOFT TDI - Target SRST
-*/
- { "altium", 0x10, 0x20, 0x04, 0x02, 0x01, 0x80, 0x00, 0x00, 0x10, 0x00, 0x08 },
- { NULL, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
-};
-
-/* configuration */
-char* parport_cable = NULL;
-u16 parport_port;
-static int parport_exit = 0;
-
-/* 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);
-void parport_led(int on);
-
-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);
-int parport_handle_write_on_exit_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,
-
- .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,
- .blink = parport_led
-};
-
-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;
-}
-
-static inline void parport_write_data(void)
-{
- u8 output;
- output = dataport_value ^ cable->OUTPUT_INVERT;
-
-#if PARPORT_USE_PPDEV == 1
- ioctl(device_handle, PPWDATA, &output);
-#else
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
- outb(dataport, output);
-#else
- outb(output, dataport);
-#endif
-#endif
-}
-
-void parport_write(int tck, int tms, int tdi)
-{
- 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;
-
- while (i-- > 0)
- parport_write_data();
-}
-
-/* (1) assert or (0) deassert reset lines */
-void parport_reset(int trst, int srst)
-{
- 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;
-
- parport_write_data();
-}
-
-/* turn LED on parport adapter on (1) or off (0) */
-void parport_led(int on)
-{
- if (on)
- dataport_value |= cable->LED_MASK;
- else
- dataport_value &= ~cable->LED_MASK;
-
- parport_write_data();
-}
-
-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);
- register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_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;
- }
-
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
- DEBUG("opening /dev/ppi%d...", parport_port);
-
- snprintf(buffer, 256, "/dev/ppi%d", parport_port);
- device_handle = open(buffer, O_WRONLY);
-#else /* not __FreeBSD__, __FreeBSD_kernel__ */
- DEBUG("opening /dev/parport%d...", parport_port);
-
- snprintf(buffer, 256, "/dev/parport%d", parport_port);
- device_handle = open(buffer, O_WRONLY);
-#endif /* __FreeBSD__, __FreeBSD_kernel__ */
-
- 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");
-
-#if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
- 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 __FreeBSD__, __FreeBSD_kernel__ */
-
-#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 */
- #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
- 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);
- parport_led(1);
-
- bitbang_interface = &parport_bitbang;
-
- return ERROR_OK;
-}
-
-int parport_quit(void)
-{
- parport_led(0);
-
- if (parport_exit)
- {
- dataport_value = cable->PORT_EXIT;
- parport_write_data();
- }
-
- if (parport_cable)
- {
- free(parport_cable);
- parport_cable = NULL;
- }
-
- 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;
-}
-
-int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- if (argc != 1)
- {
- command_print(cmd_ctx, "usage: parport_write_on_exit <on|off>");
- return ERROR_OK;
- }
-
- if (strcmp(args[0], "on") == 0)
- parport_exit = 1;
- else if (strcmp(args[0], "off") == 0)
- parport_exit = 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" +#include "bitbang.h" + +/* system includes */ +// -ino: 060521-1036 +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + +#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 +#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 +#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 */ + u8 PORT_EXIT; /* de-initialize data port with this value */ + u8 LED_MASK; /* data port bit for LED */ +} cable_t; + +cable_t cables[] = +{ + /* name tdo trst tms tck tdi srst o_inv i_inv init exit led */ + { "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x80, 0x00 }, + { "wiggler2", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x00, 0x20 }, + { "wiggler_ntrst_inverted", + 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x11, 0x80, 0x80, 0x80, 0x00 }, + { "old_amt_wiggler", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x11, 0x80, 0x80, 0x80, 0x00 }, + { "chameleon", 0x80, 0x00, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 }, + { "dlc5", 0x10, 0x00, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00 }, + { "triton", 0x80, 0x08, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 }, + { "lattice", 0x40, 0x10, 0x04, 0x02, 0x01, 0x08, 0x00, 0x00, 0x18, 0x18, 0x00 }, + { "flashlink", 0x20, 0x10, 0x02, 0x01, 0x04, 0x20, 0x30, 0x20, 0x00, 0x00, 0x00 }, +/* Altium Universal JTAG cable. Set the cable to Xilinx Mode and wire to target as follows: + HARD TCK - Target TCK + HARD TMS - Target TMS + HARD TDI - Target TDI + HARD TDO - Target TDO + SOFT TCK - Target TRST + SOFT TDI - Target SRST +*/ + { "altium", 0x10, 0x20, 0x04, 0x02, 0x01, 0x80, 0x00, 0x00, 0x10, 0x00, 0x08 }, + { NULL, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } +}; + +/* configuration */ +char* parport_cable = NULL; +u16 parport_port; +static int parport_exit = 0; + +/* 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); +void parport_led(int on); + +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); +int parport_handle_write_on_exit_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, + + .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, + .blink = parport_led +}; + +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; +} + +static inline void parport_write_data(void) +{ + u8 output; + output = dataport_value ^ cable->OUTPUT_INVERT; + +#if PARPORT_USE_PPDEV == 1 + ioctl(device_handle, PPWDATA, &output); +#else +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + outb(dataport, output); +#else + outb(output, dataport); +#endif +#endif +} + +void parport_write(int tck, int tms, int tdi) +{ + 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; + + while (i-- > 0) + parport_write_data(); +} + +/* (1) assert or (0) deassert reset lines */ +void parport_reset(int trst, int srst) +{ + 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; + + parport_write_data(); +} + +/* turn LED on parport adapter on (1) or off (0) */ +void parport_led(int on) +{ + if (on) + dataport_value |= cable->LED_MASK; + else + dataport_value &= ~cable->LED_MASK; + + parport_write_data(); +} + +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); + register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_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; + } + +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + DEBUG("opening /dev/ppi%d...", parport_port); + + snprintf(buffer, 256, "/dev/ppi%d", parport_port); + device_handle = open(buffer, O_WRONLY); +#else /* not __FreeBSD__, __FreeBSD_kernel__ */ + DEBUG("opening /dev/parport%d...", parport_port); + + snprintf(buffer, 256, "/dev/parport%d", parport_port); + device_handle = open(buffer, O_WRONLY); +#endif /* __FreeBSD__, __FreeBSD_kernel__ */ + + 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"); + +#if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) + 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 __FreeBSD__, __FreeBSD_kernel__ */ + +#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 */ + #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + 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); + parport_led(1); + + bitbang_interface = &parport_bitbang; + + return ERROR_OK; +} + +int parport_quit(void) +{ + parport_led(0); + + if (parport_exit) + { + dataport_value = cable->PORT_EXIT; + parport_write_data(); + } + + if (parport_cable) + { + free(parport_cable); + parport_cable = NULL; + } + + 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; +} + +int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc != 1) + { + command_print(cmd_ctx, "usage: parport_write_on_exit <on|off>"); + return ERROR_OK; + } + + if (strcmp(args[0], "on") == 0) + parport_exit = 1; + else if (strcmp(args[0], "off") == 0) + parport_exit = 0; + + return ERROR_OK; +} |