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@@ -1,491 +1,491 @@ |
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/*************************************************************************** |
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* Copyright (C) 2005 by Dominic Rath * |
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* Dominic.Rath@gmx.de * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the * |
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* Free Software Foundation, Inc., * |
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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***************************************************************************/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include "replacements.h" |
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#include "jtag.h" |
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#include "bitbang.h" |
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/* system includes */ |
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// -ino: 060521-1036 |
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) |
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#include <sys/types.h> |
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#include <machine/sysarch.h> |
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#include <machine/cpufunc.h> |
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#define ioperm(startport,length,enable)\ |
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i386_set_ioperm((startport), (length), (enable)) |
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#else |
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#ifdef _WIN32 |
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#include "errno.h" |
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#endif /* _WIN32 */ |
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#endif /* __FreeBSD__ */ |
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#include <string.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#if PARPORT_USE_PPDEV == 1 |
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) |
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#include <dev/ppbus/ppi.h> |
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#include <dev/ppbus/ppbconf.h> |
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#define PPRSTATUS PPIGSTATUS |
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#define PPWDATA PPISDATA |
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#else |
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#include <linux/parport.h> |
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#include <linux/ppdev.h> |
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#endif |
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#include <fcntl.h> |
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#include <sys/ioctl.h> |
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#else /* not PARPORT_USE_PPDEV */ |
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#ifndef _WIN32 |
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#include <sys/io.h> |
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#endif |
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#endif |
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#if PARPORT_USE_GIVEIO == 1 |
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#if IS_CYGWIN == 1 |
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#include <windows.h> |
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#include <errno.h> |
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#undef ERROR |
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#endif |
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#endif |
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#include "log.h" |
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/* parallel port cable description |
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*/ |
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typedef struct cable_s |
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{ |
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char* name; |
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u8 TDO_MASK; /* status port bit containing current TDO value */ |
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u8 TRST_MASK; /* data port bit for TRST */ |
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u8 TMS_MASK; /* data port bit for TMS */ |
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u8 TCK_MASK; /* data port bit for TCK */ |
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u8 TDI_MASK; /* data port bit for TDI */ |
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u8 SRST_MASK; /* data port bit for SRST */ |
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u8 OUTPUT_INVERT; /* data port bits that should be inverted */ |
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u8 INPUT_INVERT; /* status port that should be inverted */ |
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u8 PORT_INIT; /* initialize data port with this value */ |
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u8 PORT_EXIT; /* de-initialize data port with this value */ |
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u8 LED_MASK; /* data port bit for LED */ |
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} cable_t; |
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cable_t cables[] = |
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{ |
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/* name tdo trst tms tck tdi srst o_inv i_inv init exit led */ |
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{ "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x80, 0x00 }, |
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{ "wiggler2", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x00, 0x20 }, |
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{ "wiggler_ntrst_inverted", |
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0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x11, 0x80, 0x80, 0x80, 0x00 }, |
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{ "old_amt_wiggler", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x11, 0x80, 0x80, 0x80, 0x00 }, |
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{ "chameleon", 0x80, 0x00, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 }, |
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{ "dlc5", 0x10, 0x00, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00 }, |
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{ "triton", 0x80, 0x08, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 }, |
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{ "lattice", 0x40, 0x10, 0x04, 0x02, 0x01, 0x08, 0x00, 0x00, 0x18, 0x18, 0x00 }, |
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{ "flashlink", 0x20, 0x10, 0x02, 0x01, 0x04, 0x20, 0x30, 0x20, 0x00, 0x00, 0x00 }, |
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/* Altium Universal JTAG cable. Set the cable to Xilinx Mode and wire to target as follows: |
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HARD TCK - Target TCK |
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HARD TMS - Target TMS |
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HARD TDI - Target TDI |
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HARD TDO - Target TDO |
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SOFT TCK - Target TRST |
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SOFT TDI - Target SRST |
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*/ |
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{ "altium", 0x10, 0x20, 0x04, 0x02, 0x01, 0x80, 0x00, 0x00, 0x10, 0x00, 0x08 }, |
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{ NULL, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } |
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}; |
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/* configuration */ |
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char* parport_cable = NULL; |
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unsigned long parport_port; |
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static int parport_exit = 0; |
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/* interface variables |
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*/ |
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static cable_t* cable; |
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static u8 dataport_value = 0x0; |
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#if PARPORT_USE_PPDEV == 1 |
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static int device_handle; |
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#else |
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static unsigned long dataport; |
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static unsigned long statusport; |
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#endif |
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/* low level command set |
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*/ |
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int parport_read(void); |
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void parport_write(int tck, int tms, int tdi); |
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void parport_reset(int trst, int srst); |
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void parport_led(int on); |
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int parport_speed(int speed); |
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int parport_register_commands(struct command_context_s *cmd_ctx); |
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int parport_init(void); |
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int parport_quit(void); |
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/* interface commands */ |
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int parport_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); |
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int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); |
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int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); |
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jtag_interface_t parport_interface = |
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{ |
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.name = "parport", |
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.execute_queue = bitbang_execute_queue, |
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.speed = parport_speed, |
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.register_commands = parport_register_commands, |
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.init = parport_init, |
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.quit = parport_quit, |
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}; |
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bitbang_interface_t parport_bitbang = |
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{ |
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.read = parport_read, |
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.write = parport_write, |
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.reset = parport_reset, |
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.blink = parport_led |
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}; |
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int parport_read(void) |
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{ |
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int data = 0; |
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#if PARPORT_USE_PPDEV == 1 |
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ioctl(device_handle, PPRSTATUS, & data); |
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#else |
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data = inb(statusport); |
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#endif |
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if ((data ^ cable->INPUT_INVERT) & cable->TDO_MASK) |
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return 1; |
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else |
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return 0; |
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} |
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static inline void parport_write_data(void) |
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{ |
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u8 output; |
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output = dataport_value ^ cable->OUTPUT_INVERT; |
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#if PARPORT_USE_PPDEV == 1 |
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ioctl(device_handle, PPWDATA, &output); |
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#else |
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) |
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outb(dataport, output); |
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#else |
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outb(output, dataport); |
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#endif |
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#endif |
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} |
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void parport_write(int tck, int tms, int tdi) |
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{ |
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int i = jtag_speed + 1; |
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if (tck) |
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dataport_value |= cable->TCK_MASK; |
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else |
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dataport_value &= ~cable->TCK_MASK; |
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if (tms) |
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dataport_value |= cable->TMS_MASK; |
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else |
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dataport_value &= ~cable->TMS_MASK; |
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if (tdi) |
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dataport_value |= cable->TDI_MASK; |
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else |
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dataport_value &= ~cable->TDI_MASK; |
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while (i-- > 0) |
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parport_write_data(); |
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} |
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/* (1) assert or (0) deassert reset lines */ |
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void parport_reset(int trst, int srst) |
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{ |
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DEBUG("trst: %i, srst: %i", trst, srst); |
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if (trst == 0) |
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dataport_value |= cable->TRST_MASK; |
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else if (trst == 1) |
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dataport_value &= ~cable->TRST_MASK; |
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if (srst == 0) |
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dataport_value |= cable->SRST_MASK; |
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else if (srst == 1) |
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dataport_value &= ~cable->SRST_MASK; |
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parport_write_data(); |
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} |
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/* turn LED on parport adapter on (1) or off (0) */ |
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void parport_led(int on) |
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{ |
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if (on) |
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dataport_value |= cable->LED_MASK; |
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else |
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dataport_value &= ~cable->LED_MASK; |
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parport_write_data(); |
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} |
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int parport_speed(int speed) |
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{ |
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jtag_speed = speed; |
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return ERROR_OK; |
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} |
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int parport_register_commands(struct command_context_s *cmd_ctx) |
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{ |
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register_command(cmd_ctx, NULL, "parport_port", parport_handle_parport_port_command, |
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COMMAND_CONFIG, NULL); |
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register_command(cmd_ctx, NULL, "parport_cable", parport_handle_parport_cable_command, |
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COMMAND_CONFIG, NULL); |
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register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_command, |
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COMMAND_CONFIG, NULL); |
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return ERROR_OK; |
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} |
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#if PARPORT_USE_GIVEIO == 1 |
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int parport_get_giveio_access() |
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{ |
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HANDLE h; |
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OSVERSIONINFO version; |
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version.dwOSVersionInfoSize = sizeof version; |
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if (!GetVersionEx( &version )) { |
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errno = EINVAL; |
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return -1; |
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} |
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if (version.dwPlatformId != VER_PLATFORM_WIN32_NT) |
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return 0; |
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h = CreateFile( "\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); |
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if (h == INVALID_HANDLE_VALUE) { |
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errno = ENODEV; |
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return -1; |
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} |
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CloseHandle( h ); |
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return 0; |
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} |
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#endif |
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int parport_init(void) |
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{ |
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cable_t *cur_cable; |
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#if PARPORT_USE_PPDEV == 1 |
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char buffer[256]; |
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int i = 0; |
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#endif |
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cur_cable = cables; |
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if ((parport_cable == NULL) || (parport_cable[0] == 0)) |
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{ |
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parport_cable = "wiggler"; |
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WARNING("No parport cable specified, using default 'wiggler'"); |
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} |
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while (cur_cable->name) |
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{ |
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if (strcmp(cur_cable->name, parport_cable) == 0) |
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{ |
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cable = cur_cable; |
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break; |
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} |
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cur_cable++; |
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} |
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if (!cable) |
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{ |
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ERROR("No matching cable found for %s", parport_cable); |
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return ERROR_JTAG_INIT_FAILED; |
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} |
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dataport_value = cable->PORT_INIT; |
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#if PARPORT_USE_PPDEV == 1 |
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if (device_handle > 0) |
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{ |
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ERROR("device is already opened"); |
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return ERROR_JTAG_INIT_FAILED; |
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} |
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) |
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DEBUG("opening /dev/ppi%d...", parport_port); |
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snprintf(buffer, 256, "/dev/ppi%d", parport_port); |
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device_handle = open(buffer, O_WRONLY); |
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#else /* not __FreeBSD__, __FreeBSD_kernel__ */ |
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DEBUG("opening /dev/parport%d...", parport_port); |
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snprintf(buffer, 256, "/dev/parport%d", parport_port); |
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device_handle = open(buffer, O_WRONLY); |
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#endif /* __FreeBSD__, __FreeBSD_kernel__ */ |
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if (device_handle < 0) |
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{ |
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ERROR("cannot open device. check it exists and that user read and write rights are set"); |
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return ERROR_JTAG_INIT_FAILED; |
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} |
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DEBUG("...open"); |
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#if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) |
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i=ioctl(device_handle, PPCLAIM); |
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if (i<0) |
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{ |
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ERROR("cannot claim device"); |
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return ERROR_JTAG_INIT_FAILED; |
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} |
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i = PARPORT_MODE_COMPAT; |
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i= ioctl(device_handle, PPSETMODE, & i); |
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if (i<0) |
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{ |
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ERROR(" cannot set compatible mode to device"); |
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return ERROR_JTAG_INIT_FAILED; |
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} |
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i = IEEE1284_MODE_COMPAT; |
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i = ioctl(device_handle, PPNEGOT, & i); |
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if (i<0) |
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{ |
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ERROR("cannot set compatible 1284 mode to device"); |
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return ERROR_JTAG_INIT_FAILED; |
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} |
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#endif /* not __FreeBSD__, __FreeBSD_kernel__ */ |
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#else /* not PARPORT_USE_PPDEV */ |
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if (parport_port == 0) |
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{ |
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parport_port = 0x378; |
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WARNING("No parport port specified, using default '0x378' (LPT1)"); |
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} |
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dataport = parport_port; |
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statusport = parport_port + 1; |
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|
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;
|
|
|
|
}
|