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 f9d7b029..7311bad8 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; -unsigned long 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;
+}
|