| 1 | /* Remote target glue for the Hitachi SH-3 ROM monitor. |
| 2 | Copyright 1995, 1996 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | #include "gdbcore.h" |
| 22 | #include "target.h" |
| 23 | #include "monitor.h" |
| 24 | #include "serial.h" |
| 25 | #include "srec.h" |
| 26 | |
| 27 | static serial_t parallel; |
| 28 | static int parallel_in_use; |
| 29 | |
| 30 | static void sh3_open PARAMS ((char *args, int from_tty)); |
| 31 | |
| 32 | static void |
| 33 | sh3_supply_register (regname, regnamelen, val, vallen) |
| 34 | char *regname; |
| 35 | int regnamelen; |
| 36 | char *val; |
| 37 | int vallen; |
| 38 | { |
| 39 | int numregs; |
| 40 | int regno; |
| 41 | |
| 42 | numregs = 1; |
| 43 | regno = -1; |
| 44 | |
| 45 | if (regnamelen == 2) |
| 46 | switch (regname[0]) |
| 47 | { |
| 48 | case 'S': |
| 49 | if (regname[1] == 'R') |
| 50 | regno = SR_REGNUM; |
| 51 | break; |
| 52 | case 'P': |
| 53 | if (regname[1] == 'C') |
| 54 | regno = PC_REGNUM; |
| 55 | else if (regname[1] == 'R') |
| 56 | regno = PR_REGNUM; |
| 57 | break; |
| 58 | } |
| 59 | else if (regnamelen == 3) |
| 60 | switch (regname[0]) |
| 61 | { |
| 62 | case 'G': |
| 63 | case 'V': |
| 64 | if (regname[1] == 'B' && regname[2] == 'R') |
| 65 | if (regname[0] == 'G') |
| 66 | regno = VBR_REGNUM; |
| 67 | else |
| 68 | regno = GBR_REGNUM; |
| 69 | break; |
| 70 | #if 0 |
| 71 | case 'S': |
| 72 | if (regname[1] == 'S' && regname[2] == 'R') |
| 73 | regno = SSR_REGNUM; |
| 74 | else if (regname[1] == 'P' && regname[2] == 'C') |
| 75 | regno = SPC_REGNUM; |
| 76 | break; |
| 77 | #endif |
| 78 | } |
| 79 | else if (regnamelen == 4) |
| 80 | switch (regname[0]) |
| 81 | { |
| 82 | case 'M': |
| 83 | if (regname[1] == 'A' && regname[2] == 'C') |
| 84 | if (regname[3] == 'H') |
| 85 | regno = MACH_REGNUM; |
| 86 | else if (regname[3] == 'L') |
| 87 | regno = MACL_REGNUM; |
| 88 | break; |
| 89 | case 'R': |
| 90 | if (regname[1] == '0' && regname[2] == '-' && regname[3] == '7') |
| 91 | { |
| 92 | regno = R0_REGNUM; |
| 93 | numregs = 8; |
| 94 | } |
| 95 | } |
| 96 | else if (regnamelen == 5) |
| 97 | if (regname[1] == '8' && regname[2] == '-' && regname[3] == '1' |
| 98 | && regname[4] =='5') |
| 99 | { |
| 100 | regno = R0_REGNUM + 8; |
| 101 | numregs = 8; |
| 102 | } |
| 103 | |
| 104 | if (regno >= 0) |
| 105 | while (numregs-- > 0) |
| 106 | val = monitor_supply_register (regno++, val); |
| 107 | } |
| 108 | |
| 109 | static void |
| 110 | sh3_load (desc, file, hashmark) |
| 111 | serial_t desc; |
| 112 | char *file; |
| 113 | int hashmark; |
| 114 | { |
| 115 | if (parallel_in_use) |
| 116 | { |
| 117 | monitor_printf("pl;s\r"); |
| 118 | load_srec (parallel, file, 80, SREC_ALL, hashmark); |
| 119 | monitor_expect_prompt (NULL, 0); |
| 120 | } |
| 121 | else |
| 122 | { |
| 123 | monitor_printf ("il;s:x\r"); |
| 124 | monitor_expect ("\005", NULL, 0); /* Look for ENQ */ |
| 125 | SERIAL_WRITE (desc, "\006", 1); /* Send ACK */ |
| 126 | monitor_expect ("LO x\r", NULL, 0); /* Look for filename */ |
| 127 | |
| 128 | load_srec (desc, file, 80, SREC_ALL, hashmark); |
| 129 | |
| 130 | monitor_expect ("\005", NULL, 0); /* Look for ENQ */ |
| 131 | SERIAL_WRITE (desc, "\006", 1); /* Send ACK */ |
| 132 | monitor_expect_prompt (NULL, 0); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | /* This array of registers need to match the indexes used by GDB. |
| 137 | This exists because the various ROM monitors use different strings |
| 138 | than does GDB, and don't necessarily support all the registers |
| 139 | either. So, typing "info reg sp" becomes a "r30". */ |
| 140 | |
| 141 | static char *sh3_regnames[NUM_REGS] = { |
| 142 | "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", |
| 143 | "R8", "R9", "R10","R11","R12","R13","R14","R15", |
| 144 | "PC", "PR", "GBR","VBR","MACH","MACL","SR",NULL, |
| 145 | NULL, NULL, NULL, NULL}; |
| 146 | |
| 147 | /* Define the monitor command strings. Since these are passed directly |
| 148 | through to a printf style function, we may include formatting |
| 149 | strings. We also need a CR or LF on the end. */ |
| 150 | |
| 151 | static struct target_ops sh3_ops; |
| 152 | |
| 153 | static char *sh3_inits[] = {"\003", NULL}; /* Exits sub-command mode & download cmds */ |
| 154 | |
| 155 | static struct monitor_ops sh3_cmds = |
| 156 | { |
| 157 | MO_CLR_BREAK_USES_ADDR |
| 158 | | MO_GETMEM_READ_SINGLE, /* flags */ |
| 159 | sh3_inits, /* monitor init string */ |
| 160 | "g\r", /* continue command */ |
| 161 | "s\r", /* single step */ |
| 162 | "\003", /* Interrupt program */ |
| 163 | "b %x\r", /* set a breakpoint */ |
| 164 | "b -%x\r", /* clear a breakpoint */ |
| 165 | "b -\r", /* clear all breakpoints */ |
| 166 | "f %x @%x %x\r", /* fill (start len val) */ |
| 167 | { |
| 168 | "m %x %x\r", /* setmem.cmdb (addr, value) */ |
| 169 | "m %x %x;w\r", /* setmem.cmdw (addr, value) */ |
| 170 | "m %x %x;l\r", /* setmem.cmdl (addr, value) */ |
| 171 | NULL, /* setmem.cmdll (addr, value) */ |
| 172 | NULL, /* setreg.resp_delim */ |
| 173 | NULL, /* setreg.term */ |
| 174 | NULL, /* setreg.term_cmd */ |
| 175 | }, |
| 176 | { |
| 177 | "m %x\r", /* getmem.cmdb (addr, len) */ |
| 178 | "m %x;w\r", /* getmem.cmdw (addr, len) */ |
| 179 | "m %x;l\r", /* getmem.cmdl (addr, len) */ |
| 180 | NULL, /* getmem.cmdll (addr, len) */ |
| 181 | "^ [0-9A-F]+ ", /* getmem.resp_delim */ |
| 182 | "? ", /* getmem.term */ |
| 183 | ".\r", /* getmem.term_cmd */ |
| 184 | }, |
| 185 | { |
| 186 | ".%s %x\r", /* setreg.cmd (name, value) */ |
| 187 | NULL, /* setreg.resp_delim */ |
| 188 | NULL, /* setreg.term */ |
| 189 | NULL /* setreg.term_cmd */ |
| 190 | }, |
| 191 | { |
| 192 | ".%s\r", /* getreg.cmd (name) */ |
| 193 | "=", /* getreg.resp_delim */ |
| 194 | "? ", /* getreg.term */ |
| 195 | ".\r" /* getreg.term_cmd */ |
| 196 | }, |
| 197 | "r\r", /* dump_registers */ |
| 198 | /* register_pattern */ |
| 199 | "\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)", |
| 200 | sh3_supply_register, /* supply_register */ |
| 201 | sh3_load, /* load_routine */ |
| 202 | NULL, /* download command */ |
| 203 | NULL, /* Load response */ |
| 204 | "\n:", /* monitor command prompt */ |
| 205 | "\r", /* end-of-line terminator */ |
| 206 | ".\r", /* optional command terminator */ |
| 207 | &sh3_ops, /* target operations */ |
| 208 | SERIAL_1_STOPBITS, /* number of stop bits */ |
| 209 | sh3_regnames, /* registers names */ |
| 210 | MONITOR_OPS_MAGIC /* magic */ |
| 211 | }; |
| 212 | |
| 213 | static void |
| 214 | sh3_open (args, from_tty) |
| 215 | char *args; |
| 216 | int from_tty; |
| 217 | { |
| 218 | char *serial_port_name = args; |
| 219 | char *parallel_port_name = 0; |
| 220 | if (args) |
| 221 | { |
| 222 | char *cursor = serial_port_name = strsave (args); |
| 223 | |
| 224 | while (*cursor && *cursor != ' ') |
| 225 | cursor++; |
| 226 | |
| 227 | if (*cursor) |
| 228 | *cursor++ = 0; |
| 229 | |
| 230 | while (*cursor == ' ') |
| 231 | cursor++; |
| 232 | |
| 233 | if (*cursor) |
| 234 | parallel_port_name = cursor; |
| 235 | } |
| 236 | |
| 237 | monitor_open (serial_port_name, &sh3_cmds, from_tty); |
| 238 | |
| 239 | if (parallel_port_name) |
| 240 | { |
| 241 | parallel = SERIAL_OPEN (parallel_port_name); |
| 242 | if (!parallel) |
| 243 | { |
| 244 | perror_with_name ("Unable to open parallel port."); |
| 245 | } |
| 246 | parallel_in_use = 1; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | |
| 251 | static void |
| 252 | sh3_close (quitting) |
| 253 | int quitting; |
| 254 | { |
| 255 | monitor_close (quitting); |
| 256 | if (parallel_in_use) { |
| 257 | SERIAL_CLOSE (parallel); |
| 258 | parallel_in_use = 0; |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | void |
| 263 | _initialize_sh3 () |
| 264 | { |
| 265 | init_monitor_ops (&sh3_ops); |
| 266 | |
| 267 | sh3_ops.to_shortname = "sh3"; |
| 268 | sh3_ops.to_longname = "Hitachi SH-3 rom monitor"; |
| 269 | |
| 270 | sh3_ops.to_doc = |
| 271 | #ifdef _WINDOWS |
| 272 | /* On windows we can talk through the parallel port too. */ |
| 273 | "Debug on a Hitachi eval board running the SH-3 rom monitor.\n" |
| 274 | "Specify the serial device it is connected to (e.g. com2).\n" |
| 275 | "If you want to use the parallel port to download to it, specify that\n" |
| 276 | "as the second argument. (e.g. lpt1)"; |
| 277 | #else |
| 278 | "Debug on a Hitachi eval board running the SH-3 rom monitor.\n\ |
| 279 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
| 280 | #endif |
| 281 | |
| 282 | sh3_ops.to_open = sh3_open; |
| 283 | sh3_ops.to_close = sh3_close; |
| 284 | |
| 285 | add_target (&sh3_ops); |
| 286 | } |