1 /***************************************************************************
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2 * Copyright (C) 2005 by Dominic Rath *
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3 * Dominic.Rath@gmx.de *
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5 * This program is free software; you can redistribute it and/or modify *
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6 * it under the terms of the GNU General Public License as published by *
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7 * the Free Software Foundation; either version 2 of the License, or *
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8 * (at your option) any later version. *
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10 * This program is distributed in the hope that it will be useful, *
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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13 * GNU General Public License for more details. *
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15 * You should have received a copy of the GNU General Public License *
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16 * along with this program; if not, write to the *
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17 * Free Software Foundation, Inc., *
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18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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19 ***************************************************************************/
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20 #ifdef HAVE_CONFIG_H
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24 #include "replacements.h"
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27 #include "bitbang.h"
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29 /* system includes */
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30 // -ino: 060521-1036
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31 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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33 #include <sys/types.h>
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34 #include <machine/sysarch.h>
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35 #include <machine/cpufunc.h>
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36 #define ioperm(startport,length,enable)\
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37 i386_set_ioperm((startport), (length), (enable))
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45 #endif /* __FreeBSD__ */
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51 #if PARPORT_USE_PPDEV == 1
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52 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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53 #include <dev/ppbus/ppi.h>
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54 #include <dev/ppbus/ppbconf.h>
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55 #define PPRSTATUS PPIGSTATUS
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56 #define PPWDATA PPISDATA
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58 #include <linux/parport.h>
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59 #include <linux/ppdev.h>
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62 #include <sys/ioctl.h>
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63 #else /* not PARPORT_USE_PPDEV */
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69 #if PARPORT_USE_GIVEIO == 1
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71 #include <windows.h>
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79 /* parallel port cable description
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81 typedef struct cable_s
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84 u8 TDO_MASK; /* status port bit containing current TDO value */
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85 u8 TRST_MASK; /* data port bit for TRST */
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86 u8 TMS_MASK; /* data port bit for TMS */
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87 u8 TCK_MASK; /* data port bit for TCK */
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88 u8 TDI_MASK; /* data port bit for TDI */
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89 u8 SRST_MASK; /* data port bit for SRST */
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90 u8 OUTPUT_INVERT; /* data port bits that should be inverted */
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91 u8 INPUT_INVERT; /* status port that should be inverted */
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92 u8 PORT_INIT; /* initialize data port with this value */
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93 u8 PORT_EXIT; /* de-initialize data port with this value */
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94 u8 LED_MASK; /* data port bit for LED */
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99 /* name tdo trst tms tck tdi srst o_inv i_inv init exit led */
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100 { "wiggler", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x80, 0x00 },
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101 { "wiggler2", 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x01, 0x80, 0x80, 0x00, 0x20 },
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102 { "wiggler_ntrst_inverted",
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103 0x80, 0x10, 0x02, 0x04, 0x08, 0x01, 0x11, 0x80, 0x80, 0x80, 0x00 },
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104 { "old_amt_wiggler", 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x11, 0x80, 0x80, 0x80, 0x00 },
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105 { "chameleon", 0x80, 0x00, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
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106 { "dlc5", 0x10, 0x00, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00 },
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107 { "triton", 0x80, 0x08, 0x04, 0x01, 0x02, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00 },
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108 { "lattice", 0x40, 0x10, 0x04, 0x02, 0x01, 0x08, 0x00, 0x00, 0x18, 0x18, 0x00 },
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109 { "flashlink", 0x20, 0x10, 0x02, 0x01, 0x04, 0x20, 0x30, 0x20, 0x00, 0x00, 0x00 },
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110 /* Altium Universal JTAG cable. Set the cable to Xilinx Mode and wire to target as follows:
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111 HARD TCK - Target TCK
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112 HARD TMS - Target TMS
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113 HARD TDI - Target TDI
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114 HARD TDO - Target TDO
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115 SOFT TCK - Target TRST
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116 SOFT TDI - Target SRST
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118 { "altium", 0x10, 0x20, 0x04, 0x02, 0x01, 0x80, 0x00, 0x00, 0x10, 0x00, 0x08 },
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119 { NULL, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
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122 /* configuration */
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123 char* parport_cable = NULL;
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125 static int parport_exit = 0;
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127 /* interface variables
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129 static cable_t* cable;
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130 static u8 dataport_value = 0x0;
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132 #if PARPORT_USE_PPDEV == 1
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133 static int device_handle;
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135 static unsigned long dataport;
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136 static unsigned long statusport;
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139 /* low level command set
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141 int parport_read(void);
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142 void parport_write(int tck, int tms, int tdi);
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143 void parport_reset(int trst, int srst);
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144 void parport_led(int on);
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146 int parport_speed(int speed);
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147 int parport_register_commands(struct command_context_s *cmd_ctx);
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148 int parport_init(void);
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149 int parport_quit(void);
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151 /* interface commands */
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152 int parport_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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153 int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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154 int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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156 jtag_interface_t parport_interface =
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160 .execute_queue = bitbang_execute_queue,
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162 .speed = parport_speed,
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163 .register_commands = parport_register_commands,
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164 .init = parport_init,
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165 .quit = parport_quit,
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168 bitbang_interface_t parport_bitbang =
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170 .read = parport_read,
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171 .write = parport_write,
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172 .reset = parport_reset,
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173 .blink = parport_led
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176 int parport_read(void)
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180 #if PARPORT_USE_PPDEV == 1
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181 ioctl(device_handle, PPRSTATUS, & data);
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183 data = inb(statusport);
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186 if ((data ^ cable->INPUT_INVERT) & cable->TDO_MASK)
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192 static inline void parport_write_data(void)
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195 output = dataport_value ^ cable->OUTPUT_INVERT;
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197 #if PARPORT_USE_PPDEV == 1
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198 ioctl(device_handle, PPWDATA, &output);
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200 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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201 outb(dataport, output);
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203 outb(output, dataport);
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208 void parport_write(int tck, int tms, int tdi)
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210 int i = jtag_speed + 1;
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213 dataport_value |= cable->TCK_MASK;
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215 dataport_value &= ~cable->TCK_MASK;
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218 dataport_value |= cable->TMS_MASK;
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220 dataport_value &= ~cable->TMS_MASK;
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223 dataport_value |= cable->TDI_MASK;
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225 dataport_value &= ~cable->TDI_MASK;
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228 parport_write_data();
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231 /* (1) assert or (0) deassert reset lines */
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232 void parport_reset(int trst, int srst)
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234 DEBUG("trst: %i, srst: %i", trst, srst);
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237 dataport_value |= cable->TRST_MASK;
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238 else if (trst == 1)
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239 dataport_value &= ~cable->TRST_MASK;
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242 dataport_value |= cable->SRST_MASK;
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243 else if (srst == 1)
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244 dataport_value &= ~cable->SRST_MASK;
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246 parport_write_data();
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249 /* turn LED on parport adapter on (1) or off (0) */
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250 void parport_led(int on)
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253 dataport_value |= cable->LED_MASK;
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255 dataport_value &= ~cable->LED_MASK;
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257 parport_write_data();
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260 int parport_speed(int speed)
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262 jtag_speed = speed;
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267 int parport_register_commands(struct command_context_s *cmd_ctx)
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269 register_command(cmd_ctx, NULL, "parport_port", parport_handle_parport_port_command,
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270 COMMAND_CONFIG, NULL);
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271 register_command(cmd_ctx, NULL, "parport_cable", parport_handle_parport_cable_command,
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272 COMMAND_CONFIG, NULL);
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273 register_command(cmd_ctx, NULL, "parport_write_on_exit", parport_handle_write_on_exit_command,
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274 COMMAND_CONFIG, NULL);
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279 #if PARPORT_USE_GIVEIO == 1
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280 int parport_get_giveio_access()
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283 OSVERSIONINFO version;
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285 version.dwOSVersionInfoSize = sizeof version;
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286 if (!GetVersionEx( &version )) {
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290 if (version.dwPlatformId != VER_PLATFORM_WIN32_NT)
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293 h = CreateFile( "\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
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294 if (h == INVALID_HANDLE_VALUE) {
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305 int parport_init(void)
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307 cable_t *cur_cable;
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308 #if PARPORT_USE_PPDEV == 1
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313 cur_cable = cables;
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315 if ((parport_cable == NULL) || (parport_cable[0] == 0))
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317 parport_cable = "wiggler";
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318 WARNING("No parport cable specified, using default 'wiggler'");
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321 while (cur_cable->name)
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323 if (strcmp(cur_cable->name, parport_cable) == 0)
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333 ERROR("No matching cable found for %s", parport_cable);
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334 return ERROR_JTAG_INIT_FAILED;
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337 dataport_value = cable->PORT_INIT;
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339 #if PARPORT_USE_PPDEV == 1
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340 if (device_handle > 0)
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342 ERROR("device is already opened");
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343 return ERROR_JTAG_INIT_FAILED;
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346 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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347 DEBUG("opening /dev/ppi%d...", parport_port);
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349 snprintf(buffer, 256, "/dev/ppi%d", parport_port);
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350 device_handle = open(buffer, O_WRONLY);
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351 #else /* not __FreeBSD__, __FreeBSD_kernel__ */
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352 DEBUG("opening /dev/parport%d...", parport_port);
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354 snprintf(buffer, 256, "/dev/parport%d", parport_port);
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355 device_handle = open(buffer, O_WRONLY);
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356 #endif /* __FreeBSD__, __FreeBSD_kernel__ */
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358 if (device_handle < 0)
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360 ERROR("cannot open device. check it exists and that user read and write rights are set");
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361 return ERROR_JTAG_INIT_FAILED;
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366 #if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
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367 i=ioctl(device_handle, PPCLAIM);
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370 ERROR("cannot claim device");
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371 return ERROR_JTAG_INIT_FAILED;
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374 i = PARPORT_MODE_COMPAT;
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375 i= ioctl(device_handle, PPSETMODE, & i);
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378 ERROR(" cannot set compatible mode to device");
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379 return ERROR_JTAG_INIT_FAILED;
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382 i = IEEE1284_MODE_COMPAT;
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383 i = ioctl(device_handle, PPNEGOT, & i);
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386 ERROR("cannot set compatible 1284 mode to device");
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387 return ERROR_JTAG_INIT_FAILED;
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389 #endif /* not __FreeBSD__, __FreeBSD_kernel__ */
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391 #else /* not PARPORT_USE_PPDEV */
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392 if (parport_port == 0)
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394 parport_port = 0x378;
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395 WARNING("No parport port specified, using default '0x378' (LPT1)");
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398 dataport = parport_port;
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399 statusport = parport_port + 1;
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401 DEBUG("requesting privileges for parallel port 0x%lx...", dataport);
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402 #if PARPORT_USE_GIVEIO == 1
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403 if (parport_get_giveio_access() != 0)
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404 #else /* PARPORT_USE_GIVEIO */
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405 if (ioperm(dataport, 3, 1) != 0)
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406 #endif /* PARPORT_USE_GIVEIO */
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408 ERROR("missing privileges for direct i/o");
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409 return ERROR_JTAG_INIT_FAILED;
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411 DEBUG("...privileges granted");
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413 /* make sure parallel port is in right mode (clear tristate and interrupt */
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414 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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415 outb(parport_port + 2, 0x0);
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417 outb(0x0, parport_port + 2);
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420 #endif /* PARPORT_USE_PPDEV */
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422 parport_reset(0, 0);
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423 parport_write(0, 0, 0);
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426 bitbang_interface = &parport_bitbang;
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431 int parport_quit(void)
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437 dataport_value = cable->PORT_EXIT;
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438 parport_write_data();
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443 free(parport_cable);
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444 parport_cable = NULL;
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450 int parport_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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455 /* only if the port wasn't overwritten by cmdline */
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456 if (parport_port == 0)
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457 parport_port = strtoul(args[0], NULL, 0);
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462 int parport_handle_parport_cable_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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467 /* only if the cable name wasn't overwritten by cmdline */
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468 if (parport_cable == 0)
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470 parport_cable = malloc(strlen(args[0]) + sizeof(char));
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471 strcpy(parport_cable, args[0]);
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477 int parport_handle_write_on_exit_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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481 command_print(cmd_ctx, "usage: parport_write_on_exit <on|off>");
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485 if (strcmp(args[0], "on") == 0)
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487 else if (strcmp(args[0], "off") == 0)
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