| 1 |
/* |
| 2 |
* Copyright (C) 2004-2007 Anders Gavare. All rights reserved. |
| 3 |
* |
| 4 |
* Redistribution and use in source and binary forms, with or without |
| 5 |
* modification, are permitted provided that the following conditions are met: |
| 6 |
* |
| 7 |
* 1. Redistributions of source code must retain the above copyright |
| 8 |
* notice, this list of conditions and the following disclaimer. |
| 9 |
* 2. Redistributions in binary form must reproduce the above copyright |
| 10 |
* notice, this list of conditions and the following disclaimer in the |
| 11 |
* documentation and/or other materials provided with the distribution. |
| 12 |
* 3. The name of the author may not be used to endorse or promote products |
| 13 |
* derived from this software without specific prior written permission. |
| 14 |
* |
| 15 |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 16 |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 |
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 19 |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 20 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 21 |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 22 |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 23 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 24 |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 25 |
* SUCH DAMAGE. |
| 26 |
* |
| 27 |
* |
| 28 |
* $Id: dev_vr41xx.c,v 1.46 2007/06/15 19:57:34 debug Exp $ |
| 29 |
* |
| 30 |
* COMMENT: VR41xx (VR4122 and VR4131) misc functions |
| 31 |
* |
| 32 |
* This is just a big hack. |
| 33 |
* |
| 34 |
* TODO: Implement more functionality some day. |
| 35 |
*/ |
| 36 |
|
| 37 |
#include <stdio.h> |
| 38 |
#include <stdlib.h> |
| 39 |
#include <string.h> |
| 40 |
|
| 41 |
#include "console.h" |
| 42 |
#include "cpu.h" |
| 43 |
#include "device.h" |
| 44 |
#include "devices.h" |
| 45 |
#include "interrupt.h" |
| 46 |
#include "machine.h" |
| 47 |
#include "memory.h" |
| 48 |
#include "misc.h" |
| 49 |
#include "timer.h" |
| 50 |
|
| 51 |
#include "bcureg.h" |
| 52 |
#include "vripreg.h" |
| 53 |
#include "vrkiureg.h" |
| 54 |
#include "vr_rtcreg.h" |
| 55 |
|
| 56 |
|
| 57 |
/* #define debug fatal */ |
| 58 |
|
| 59 |
#define DEV_VR41XX_TICKSHIFT 14 |
| 60 |
|
| 61 |
#define DEV_VR41XX_LENGTH 0x800 /* TODO? */ |
| 62 |
struct vr41xx_data { |
| 63 |
struct interrupt cpu_irq; /* Connected to MIPS irq 2 */ |
| 64 |
int cpumodel; /* Model nr, e.g. 4121 */ |
| 65 |
|
| 66 |
/* KIU: */ |
| 67 |
int kiu_console_handle; |
| 68 |
uint32_t kiu_offset; |
| 69 |
struct interrupt kiu_irq; |
| 70 |
int kiu_int_assert; |
| 71 |
int old_kiu_int_assert; |
| 72 |
|
| 73 |
int d0, d1, d2, d3, d4, d5; |
| 74 |
int dont_clear_next; |
| 75 |
int escape_state; |
| 76 |
|
| 77 |
/* Timer: */ |
| 78 |
int pending_timer_interrupts; |
| 79 |
struct interrupt timer_irq; |
| 80 |
struct timer *timer; |
| 81 |
|
| 82 |
/* See icureg.h in NetBSD for more info. */ |
| 83 |
uint16_t sysint1; |
| 84 |
uint16_t msysint1; |
| 85 |
uint16_t giuint; |
| 86 |
uint16_t giumask; |
| 87 |
uint16_t sysint2; |
| 88 |
uint16_t msysint2; |
| 89 |
struct interrupt giu_irq; |
| 90 |
}; |
| 91 |
|
| 92 |
|
| 93 |
/* |
| 94 |
* vr41xx_vrip_interrupt_assert(): |
| 95 |
* vr41xx_vrip_interrupt_deassert(): |
| 96 |
*/ |
| 97 |
void vr41xx_vrip_interrupt_assert(struct interrupt *interrupt) |
| 98 |
{ |
| 99 |
struct vr41xx_data *d = interrupt->extra; |
| 100 |
int line = interrupt->line; |
| 101 |
if (line < 16) |
| 102 |
d->sysint1 |= (1 << line); |
| 103 |
else |
| 104 |
d->sysint2 |= (1 << (line-16)); |
| 105 |
if ((d->sysint1 & d->msysint1) | (d->sysint2 & d->msysint2)) |
| 106 |
INTERRUPT_ASSERT(d->cpu_irq); |
| 107 |
} |
| 108 |
void vr41xx_vrip_interrupt_deassert(struct interrupt *interrupt) |
| 109 |
{ |
| 110 |
struct vr41xx_data *d = interrupt->extra; |
| 111 |
int line = interrupt->line; |
| 112 |
if (line < 16) |
| 113 |
d->sysint1 &= ~(1 << line); |
| 114 |
else |
| 115 |
d->sysint2 &= ~(1 << (line-16)); |
| 116 |
if (!(d->sysint1 & d->msysint1) && !(d->sysint2 & d->msysint2)) |
| 117 |
INTERRUPT_DEASSERT(d->cpu_irq); |
| 118 |
} |
| 119 |
|
| 120 |
|
| 121 |
/* |
| 122 |
* vr41xx_giu_interrupt_assert(): |
| 123 |
* vr41xx_giu_interrupt_deassert(): |
| 124 |
*/ |
| 125 |
void vr41xx_giu_interrupt_assert(struct interrupt *interrupt) |
| 126 |
{ |
| 127 |
struct vr41xx_data *d = interrupt->extra; |
| 128 |
int line = interrupt->line; |
| 129 |
d->giuint |= (1 << line); |
| 130 |
if (d->giuint & d->giumask) |
| 131 |
INTERRUPT_ASSERT(d->giu_irq); |
| 132 |
} |
| 133 |
void vr41xx_giu_interrupt_deassert(struct interrupt *interrupt) |
| 134 |
{ |
| 135 |
struct vr41xx_data *d = interrupt->extra; |
| 136 |
int line = interrupt->line; |
| 137 |
d->giuint &= ~(1 << line); |
| 138 |
if (!(d->giuint & d->giumask)) |
| 139 |
INTERRUPT_DEASSERT(d->giu_irq); |
| 140 |
} |
| 141 |
|
| 142 |
|
| 143 |
static void recalc_kiu_int_assert(struct cpu *cpu, struct vr41xx_data *d) |
| 144 |
{ |
| 145 |
if (d->kiu_int_assert != d->old_kiu_int_assert) { |
| 146 |
d->old_kiu_int_assert = d->kiu_int_assert; |
| 147 |
if (d->kiu_int_assert != 0) |
| 148 |
INTERRUPT_ASSERT(d->kiu_irq); |
| 149 |
else |
| 150 |
INTERRUPT_DEASSERT(d->kiu_irq); |
| 151 |
} |
| 152 |
} |
| 153 |
|
| 154 |
|
| 155 |
/* |
| 156 |
* vr41xx_keytick(): |
| 157 |
*/ |
| 158 |
static void vr41xx_keytick(struct cpu *cpu, struct vr41xx_data *d) |
| 159 |
{ |
| 160 |
int keychange = 0; |
| 161 |
|
| 162 |
/* |
| 163 |
* Keyboard input: |
| 164 |
* |
| 165 |
* Hardcoded for MobilePro. (See NetBSD's hpckbdkeymap.h for |
| 166 |
* info on other keyboard layouts. mobilepro780_keytrans is the |
| 167 |
* one used here.) |
| 168 |
* |
| 169 |
* TODO: Make this work with "any" keyboard layout. |
| 170 |
* |
| 171 |
* ofs 0: |
| 172 |
* 8000='o' 4000='.' 2000=DOWN 1000=UP |
| 173 |
* 800=';' 400=''' 200='[' 100=? |
| 174 |
* 80='l' 40=CR 20=RIGHT 10=LEFT |
| 175 |
* 8='/' 4='\' 2=']' 1=SPACE |
| 176 |
* ofs 2: |
| 177 |
* 8000='a' 4000='s' 2000='d' 1000='f' |
| 178 |
* 800='`' 400='-' 200='=' 100=? |
| 179 |
* 80='z' 40='x' 20='c' 10='v' |
| 180 |
* 8=? 4=? 2=? |
| 181 |
* ofs 4: |
| 182 |
* 8000='9' 4000='0' 2000=? 1000=? |
| 183 |
* 800='b' 400='n' 200='m' 100=',' |
| 184 |
* 80='q' 40='w' 20='e' 10='r' |
| 185 |
* 8='5' 4='6' 2='7' 1='8' |
| 186 |
* ofs 6: |
| 187 |
* 8000=ESC 4000=DEL 2000=CAPS 1000=? |
| 188 |
* 800='t' 400='y' 200='u' 100='i' |
| 189 |
* 80='1' 40='2' 20='3' 10='4' |
| 190 |
* 8='g' 4='h' 2='j' 1='k' |
| 191 |
* ofs 8: |
| 192 |
* 200=ALT_L |
| 193 |
* 80= 40=TAB 20='p' 10=BS |
| 194 |
* 8= 4= 2= 1=ALT_R |
| 195 |
* ofs a: |
| 196 |
* 800=SHIFT 4=CTRL |
| 197 |
* |
| 198 |
* |
| 199 |
* The following are for the IBM WorkPad Z50: |
| 200 |
* (Not yet implemented, TODO) |
| 201 |
* |
| 202 |
* 00 f1 f3 f5 f7 f9 - - f11 |
| 203 |
* 08 f2 f4 f6 f8 f10 - - f12 |
| 204 |
* 10 ' [ - 0 p ; up / |
| 205 |
* 18 - - - 9 o l . - |
| 206 |
* 20 left ] = 8 i k , - |
| 207 |
* 28 h y 6 7 u j m n |
| 208 |
* 30 - bs num del - \ ent sp |
| 209 |
* 38 g t 5 4 r f v b |
| 210 |
* 40 - - - 3 e d c right |
| 211 |
* 48 - - - 2 w s x down |
| 212 |
* 50 esc tab ~ 1 q a z - |
| 213 |
* 58 menu Ls Lc Rc La Ra Rs - |
| 214 |
*/ |
| 215 |
|
| 216 |
if (d->d0 != 0 || d->d1 != 0 || d->d2 != 0 || |
| 217 |
d->d3 != 0 || d->d4 != 0 || d->d5 != 0) |
| 218 |
keychange = 1; |
| 219 |
|
| 220 |
/* Release all keys: */ |
| 221 |
if (!d->dont_clear_next) { |
| 222 |
d->d0 = d->d1 = d->d2 = d->d3 = d->d4 = d->d5 = 0; |
| 223 |
} else |
| 224 |
d->dont_clear_next = 0; |
| 225 |
|
| 226 |
if (console_charavail(d->kiu_console_handle)) { |
| 227 |
char ch = console_readchar(d->kiu_console_handle); |
| 228 |
|
| 229 |
if (d->escape_state > 0) { |
| 230 |
switch (d->escape_state) { |
| 231 |
case 1: /* expecting a [ */ |
| 232 |
d->escape_state = 0; |
| 233 |
if (ch == '[') |
| 234 |
d->escape_state = 2; |
| 235 |
break; |
| 236 |
case 2: /* cursor keys etc: */ |
| 237 |
/* Ugly hack for Mobilepro770: */ |
| 238 |
if (cpu->machine->machine_subtype == |
| 239 |
MACHINE_HPCMIPS_NEC_MOBILEPRO_770) { |
| 240 |
switch (ch) { |
| 241 |
case 'A': d->d0 = 0x2000; break; |
| 242 |
case 'B': d->d0 = 0x20; break; |
| 243 |
case 'C': d->d0 = 0x1000; break; |
| 244 |
case 'D': d->d0 = 0x10; break; |
| 245 |
default: fatal("[ vr41xx kiu: unimpl" |
| 246 |
"emented escape 0x%02 ]\n", ch); |
| 247 |
} |
| 248 |
} else { |
| 249 |
switch (ch) { |
| 250 |
case 'A': d->d0 = 0x1000; break; |
| 251 |
case 'B': d->d0 = 0x2000; break; |
| 252 |
case 'C': d->d0 = 0x20; break; |
| 253 |
case 'D': d->d0 = 0x10; break; |
| 254 |
default: fatal("[ vr41xx kiu: unimpl" |
| 255 |
"emented escape 0x%02 ]\n", ch); |
| 256 |
} |
| 257 |
} |
| 258 |
d->escape_state = 0; |
| 259 |
} |
| 260 |
} else switch (ch) { |
| 261 |
case '+': console_makeavail(d->kiu_console_handle, '='); |
| 262 |
d->d5 = 0x800; break; |
| 263 |
case '_': console_makeavail(d->kiu_console_handle, '-'); |
| 264 |
d->d5 = 0x800; break; |
| 265 |
case '<': console_makeavail(d->kiu_console_handle, ','); |
| 266 |
d->d5 = 0x800; break; |
| 267 |
case '>': console_makeavail(d->kiu_console_handle, '.'); |
| 268 |
d->d5 = 0x800; break; |
| 269 |
case '{': console_makeavail(d->kiu_console_handle, '['); |
| 270 |
d->d5 = 0x800; break; |
| 271 |
case '}': console_makeavail(d->kiu_console_handle, ']'); |
| 272 |
d->d5 = 0x800; break; |
| 273 |
case ':': console_makeavail(d->kiu_console_handle, ';'); |
| 274 |
d->d5 = 0x800; break; |
| 275 |
case '"': console_makeavail(d->kiu_console_handle, '\''); |
| 276 |
d->d5 = 0x800; break; |
| 277 |
case '|': console_makeavail(d->kiu_console_handle, '\\'); |
| 278 |
d->d5 = 0x800; break; |
| 279 |
case '?': console_makeavail(d->kiu_console_handle, '/'); |
| 280 |
d->d5 = 0x800; break; |
| 281 |
|
| 282 |
case '!': console_makeavail(d->kiu_console_handle, '1'); |
| 283 |
d->d5 = 0x800; break; |
| 284 |
case '@': console_makeavail(d->kiu_console_handle, '2'); |
| 285 |
d->d5 = 0x800; break; |
| 286 |
case '#': console_makeavail(d->kiu_console_handle, '3'); |
| 287 |
d->d5 = 0x800; break; |
| 288 |
case '$': console_makeavail(d->kiu_console_handle, '4'); |
| 289 |
d->d5 = 0x800; break; |
| 290 |
case '%': console_makeavail(d->kiu_console_handle, '5'); |
| 291 |
d->d5 = 0x800; break; |
| 292 |
case '^': console_makeavail(d->kiu_console_handle, '6'); |
| 293 |
d->d5 = 0x800; break; |
| 294 |
case '&': console_makeavail(d->kiu_console_handle, '7'); |
| 295 |
d->d5 = 0x800; break; |
| 296 |
case '*': console_makeavail(d->kiu_console_handle, '8'); |
| 297 |
d->d5 = 0x800; break; |
| 298 |
case '(': console_makeavail(d->kiu_console_handle, '9'); |
| 299 |
d->d5 = 0x800; break; |
| 300 |
case ')': console_makeavail(d->kiu_console_handle, '0'); |
| 301 |
d->d5 = 0x800; break; |
| 302 |
|
| 303 |
case '1': d->d3 = 0x80; break; |
| 304 |
case '2': d->d3 = 0x40; break; |
| 305 |
case '3': d->d3 = 0x20; break; |
| 306 |
case '4': d->d3 = 0x10; break; |
| 307 |
case '5': d->d2 = 0x08; break; |
| 308 |
case '6': d->d2 = 0x04; break; |
| 309 |
case '7': d->d2 = 0x02; break; |
| 310 |
case '8': d->d2 = 0x01; break; |
| 311 |
case '9': d->d2 = 0x8000; break; |
| 312 |
case '0': d->d2 = 0x4000; break; |
| 313 |
|
| 314 |
case ';': d->d0 = 0x800; break; |
| 315 |
case '\'': d->d0 = 0x400; break; |
| 316 |
case '[': d->d0 = 0x200; break; |
| 317 |
case '/': d->d0 = 0x8; break; |
| 318 |
case '\\': d->d0 = 0x4; break; |
| 319 |
case ']': d->d0 = 0x2; break; |
| 320 |
|
| 321 |
case 'a': d->d1 = 0x8000; break; |
| 322 |
case 'b': d->d2 = 0x800; break; |
| 323 |
case 'c': d->d1 = 0x20; break; |
| 324 |
case 'd': d->d1 = 0x2000; break; |
| 325 |
case 'e': d->d2 = 0x20; break; |
| 326 |
case 'f': d->d1 = 0x1000; break; |
| 327 |
case 'g': d->d3 = 0x8; break; |
| 328 |
case 'h': d->d3 = 0x4; break; |
| 329 |
case 'i': d->d3 = 0x100; break; |
| 330 |
case 'j': d->d3 = 0x2; break; |
| 331 |
case 'k': d->d3 = 0x1; break; |
| 332 |
case 'l': d->d0 = 0x80; break; |
| 333 |
case 'm': d->d2 = 0x200; break; |
| 334 |
case 'n': d->d2 = 0x400; break; |
| 335 |
case 'o': d->d0 = 0x8000; break; |
| 336 |
case 'p': d->d4 = 0x20; break; |
| 337 |
case 'q': d->d2 = 0x80; break; |
| 338 |
case 'r': d->d2 = 0x10; break; |
| 339 |
case 's': d->d1 = 0x4000; break; |
| 340 |
case 't': d->d3 = 0x800; break; |
| 341 |
case 'u': d->d3 = 0x200; break; |
| 342 |
case 'v': d->d1 = 0x10; break; |
| 343 |
case 'w': d->d2 = 0x40; break; |
| 344 |
case 'x': d->d1 = 0x40; break; |
| 345 |
case 'y': d->d3 = 0x400; break; |
| 346 |
case 'z': d->d1 = 0x80; break; |
| 347 |
|
| 348 |
case ',': d->d2 = 0x100; break; |
| 349 |
case '.': d->d0 = 0x4000; break; |
| 350 |
case '-': d->d1 = 0x400; break; |
| 351 |
case '=': d->d1 = 0x200; break; |
| 352 |
|
| 353 |
case '\r': |
| 354 |
case '\n': d->d0 = 0x40; break; |
| 355 |
case ' ': d->d0 = 0x01; break; |
| 356 |
case '\b': d->d4 = 0x10; break; |
| 357 |
|
| 358 |
case 27: d->escape_state = 1; break; |
| 359 |
|
| 360 |
default: |
| 361 |
/* Shifted: */ |
| 362 |
if (ch >= 'A' && ch <= 'Z') { |
| 363 |
console_makeavail(d->kiu_console_handle, |
| 364 |
ch + 32); |
| 365 |
d->d5 = 0x800; |
| 366 |
d->dont_clear_next = 1; |
| 367 |
break; |
| 368 |
} |
| 369 |
|
| 370 |
/* CTRLed: */ |
| 371 |
if (ch >= 1 && ch <= 26) { |
| 372 |
console_makeavail(d->kiu_console_handle, |
| 373 |
ch + 96); |
| 374 |
d->d5 = 0x4; |
| 375 |
d->dont_clear_next = 1; |
| 376 |
break; |
| 377 |
} |
| 378 |
} |
| 379 |
|
| 380 |
if (d->escape_state == 0) |
| 381 |
keychange = 1; |
| 382 |
} |
| 383 |
|
| 384 |
if (keychange) { |
| 385 |
/* 4=lost data, 2=data complete, 1=key input detected */ |
| 386 |
d->kiu_int_assert |= 3; |
| 387 |
recalc_kiu_int_assert(cpu, d); |
| 388 |
} |
| 389 |
} |
| 390 |
|
| 391 |
|
| 392 |
/* |
| 393 |
* timer_tick(): |
| 394 |
*/ |
| 395 |
static void timer_tick(struct timer *timer, void *extra) |
| 396 |
{ |
| 397 |
struct vr41xx_data *d = extra; |
| 398 |
d->pending_timer_interrupts ++; |
| 399 |
} |
| 400 |
|
| 401 |
|
| 402 |
DEVICE_TICK(vr41xx) |
| 403 |
{ |
| 404 |
struct vr41xx_data *d = extra; |
| 405 |
|
| 406 |
if (d->pending_timer_interrupts > 0) |
| 407 |
INTERRUPT_ASSERT(d->timer_irq); |
| 408 |
|
| 409 |
if (cpu->machine->x11_md.in_use) |
| 410 |
vr41xx_keytick(cpu, d); |
| 411 |
} |
| 412 |
|
| 413 |
|
| 414 |
/* |
| 415 |
* vr41xx_kiu(): |
| 416 |
* |
| 417 |
* Keyboard Interface Unit. Return value is "odata". |
| 418 |
* (See NetBSD's vrkiu.c for more info.) |
| 419 |
*/ |
| 420 |
static uint64_t vr41xx_kiu(struct cpu *cpu, int ofs, uint64_t idata, |
| 421 |
int writeflag, struct vr41xx_data *d) |
| 422 |
{ |
| 423 |
uint64_t odata = 0; |
| 424 |
|
| 425 |
switch (ofs) { |
| 426 |
case KIUDAT0: |
| 427 |
odata = d->d0; break; |
| 428 |
case KIUDAT1: |
| 429 |
odata = d->d1; break; |
| 430 |
case KIUDAT2: |
| 431 |
odata = d->d2; break; |
| 432 |
case KIUDAT3: |
| 433 |
odata = d->d3; break; |
| 434 |
case KIUDAT4: |
| 435 |
odata = d->d4; break; |
| 436 |
case KIUDAT5: |
| 437 |
odata = d->d5; break; |
| 438 |
case KIUSCANREP: |
| 439 |
if (writeflag == MEM_WRITE) { |
| 440 |
debug("[ vr41xx KIU: setting KIUSCANREP to 0x%04x ]\n", |
| 441 |
(int)idata); |
| 442 |
/* TODO */ |
| 443 |
} else |
| 444 |
fatal("[ vr41xx KIU: unimplemented read from " |
| 445 |
"KIUSCANREP ]\n"); |
| 446 |
break; |
| 447 |
case KIUSCANS: |
| 448 |
if (writeflag == MEM_WRITE) { |
| 449 |
debug("[ vr41xx KIU: write to KIUSCANS: 0x%04x: TODO" |
| 450 |
" ]\n", (int)idata); |
| 451 |
/* TODO */ |
| 452 |
} else |
| 453 |
debug("[ vr41xx KIU: unimplemented read from " |
| 454 |
"KIUSCANS ]\n"); |
| 455 |
break; |
| 456 |
case KIUINT: |
| 457 |
/* Interrupt. A wild guess: zero-on-write */ |
| 458 |
if (writeflag == MEM_WRITE) { |
| 459 |
d->kiu_int_assert &= ~idata; |
| 460 |
} else { |
| 461 |
odata = d->kiu_int_assert; |
| 462 |
} |
| 463 |
recalc_kiu_int_assert(cpu, d); |
| 464 |
break; |
| 465 |
case KIURST: |
| 466 |
/* Reset. */ |
| 467 |
break; |
| 468 |
default: |
| 469 |
if (writeflag == MEM_WRITE) |
| 470 |
debug("[ vr41xx KIU: unimplemented write to offset " |
| 471 |
"0x%x, data=0x%016"PRIx64" ]\n", ofs, |
| 472 |
(uint64_t) idata); |
| 473 |
else |
| 474 |
debug("[ vr41xx KIU: unimplemented read from offset " |
| 475 |
"0x%x ]\n", ofs); |
| 476 |
} |
| 477 |
|
| 478 |
return odata; |
| 479 |
} |
| 480 |
|
| 481 |
|
| 482 |
DEVICE_ACCESS(vr41xx) |
| 483 |
{ |
| 484 |
struct vr41xx_data *d = extra; |
| 485 |
uint64_t idata = 0, odata = 0; |
| 486 |
int regnr; |
| 487 |
int revision = 0; |
| 488 |
|
| 489 |
if (writeflag == MEM_WRITE) |
| 490 |
idata = memory_readmax64(cpu, data, len); |
| 491 |
|
| 492 |
regnr = relative_addr / sizeof(uint64_t); |
| 493 |
|
| 494 |
/* KIU ("Keyboard Interface Unit") is handled separately. */ |
| 495 |
if (relative_addr >= d->kiu_offset && |
| 496 |
relative_addr < d->kiu_offset + 0x20) { |
| 497 |
odata = vr41xx_kiu(cpu, relative_addr - d->kiu_offset, |
| 498 |
idata, writeflag, d); |
| 499 |
goto ret; |
| 500 |
} |
| 501 |
|
| 502 |
/* TODO: Maybe these should be handled separately as well? */ |
| 503 |
|
| 504 |
switch (relative_addr) { |
| 505 |
|
| 506 |
/* BCU: 0x00 .. 0x1c */ |
| 507 |
case BCUREVID_REG_W: /* 0x010 */ |
| 508 |
case BCU81REVID_REG_W: /* 0x014 */ |
| 509 |
/* |
| 510 |
* TODO? Linux seems to read 0x14. The lowest bits are |
| 511 |
* a divisor for PClock, bits 8 and up seem to be a |
| 512 |
* divisor for VTClock (relative to PClock?)... |
| 513 |
*/ |
| 514 |
switch (d->cpumodel) { |
| 515 |
case 4131: revision = BCUREVID_RID_4131; break; |
| 516 |
case 4122: revision = BCUREVID_RID_4122; break; |
| 517 |
case 4121: revision = BCUREVID_RID_4121; break; |
| 518 |
case 4111: revision = BCUREVID_RID_4111; break; |
| 519 |
case 4102: revision = BCUREVID_RID_4102; break; |
| 520 |
case 4101: revision = BCUREVID_RID_4101; break; |
| 521 |
case 4181: revision = BCUREVID_RID_4181; break; |
| 522 |
} |
| 523 |
odata = (revision << BCUREVID_RIDSHFT) | 0x020c; |
| 524 |
break; |
| 525 |
case BCU81CLKSPEED_REG_W: /* 0x018 */ |
| 526 |
/* |
| 527 |
* TODO: Implement this for ALL cpu types: |
| 528 |
*/ |
| 529 |
odata = BCUCLKSPEED_DIVT4 << BCUCLKSPEED_DIVTSHFT; |
| 530 |
break; |
| 531 |
|
| 532 |
/* DMAAU: 0x20 .. 0x3c */ |
| 533 |
|
| 534 |
/* DCU: 0x40 .. 0x5c */ |
| 535 |
|
| 536 |
/* CMU: 0x60 .. 0x7c */ |
| 537 |
|
| 538 |
/* ICU: 0x80 .. 0xbc */ |
| 539 |
case 0x80: /* Level 1 system interrupt reg 1... */ |
| 540 |
if (writeflag == MEM_READ) |
| 541 |
odata = d->sysint1; |
| 542 |
else { |
| 543 |
/* TODO: clear-on-write-one? */ |
| 544 |
d->sysint1 &= ~idata; |
| 545 |
d->sysint1 &= 0xffff; |
| 546 |
} |
| 547 |
break; |
| 548 |
case 0x88: |
| 549 |
if (writeflag == MEM_READ) |
| 550 |
odata = d->giuint; |
| 551 |
else |
| 552 |
d->giuint &= ~idata; |
| 553 |
break; |
| 554 |
case 0x8c: |
| 555 |
if (writeflag == MEM_READ) |
| 556 |
odata = d->msysint1; |
| 557 |
else |
| 558 |
d->msysint1 = idata; |
| 559 |
break; |
| 560 |
case 0x94: |
| 561 |
if (writeflag == MEM_READ) |
| 562 |
odata = d->giumask; |
| 563 |
else |
| 564 |
d->giumask = idata; |
| 565 |
break; |
| 566 |
case 0xa0: /* Level 1 system interrupt reg 2... */ |
| 567 |
if (writeflag == MEM_READ) |
| 568 |
odata = d->sysint2; |
| 569 |
else { |
| 570 |
/* TODO: clear-on-write-one? */ |
| 571 |
d->sysint2 &= ~idata; |
| 572 |
d->sysint2 &= 0xffff; |
| 573 |
} |
| 574 |
break; |
| 575 |
case 0xa6: |
| 576 |
if (writeflag == MEM_READ) |
| 577 |
odata = d->msysint2; |
| 578 |
else |
| 579 |
d->msysint2 = idata; |
| 580 |
break; |
| 581 |
|
| 582 |
/* RTC: */ |
| 583 |
case 0xc0: |
| 584 |
case 0xc2: |
| 585 |
case 0xc4: |
| 586 |
{ |
| 587 |
struct timeval tv; |
| 588 |
gettimeofday(&tv, NULL); |
| 589 |
/* Adjust time by 120 years and 29 days. */ |
| 590 |
tv.tv_sec += (int64_t) (120*365 + 29) * 24*60*60; |
| 591 |
|
| 592 |
switch (relative_addr) { |
| 593 |
case 0xc0: |
| 594 |
odata = (tv.tv_sec & 1) << 15; |
| 595 |
break; |
| 596 |
case 0xc2: |
| 597 |
odata = (tv.tv_sec >> 1) & 0xffff; |
| 598 |
break; |
| 599 |
case 0xc4: |
| 600 |
odata = (tv.tv_sec >> 17) & 0xffff; |
| 601 |
break; |
| 602 |
} |
| 603 |
} |
| 604 |
break; |
| 605 |
|
| 606 |
case 0xd0: /* RTCL1_L_REG_W */ |
| 607 |
if (writeflag == MEM_WRITE && idata != 0) { |
| 608 |
int hz = RTCL1_L_HZ / idata; |
| 609 |
debug("[ vr41xx: rtc interrupts at %i Hz ]\n", hz); |
| 610 |
if (d->timer == NULL) |
| 611 |
d->timer = timer_add(hz, timer_tick, d); |
| 612 |
else |
| 613 |
timer_update_frequency(d->timer, hz); |
| 614 |
} |
| 615 |
break; |
| 616 |
case 0xd2: /* RTCL1_H_REG_W */ |
| 617 |
break; |
| 618 |
|
| 619 |
case 0x108: |
| 620 |
if (writeflag == MEM_READ) |
| 621 |
odata = d->giuint; |
| 622 |
else |
| 623 |
d->giuint &= ~idata; |
| 624 |
break; |
| 625 |
/* case 0x10a: |
| 626 |
"High" part of GIU? |
| 627 |
break; |
| 628 |
*/ |
| 629 |
|
| 630 |
case 0x13e: /* on 4181? */ |
| 631 |
case 0x1de: /* on 4121? */ |
| 632 |
/* RTC interrupt register... */ |
| 633 |
/* Ack. timer interrupts? */ |
| 634 |
INTERRUPT_DEASSERT(d->timer_irq); |
| 635 |
if (d->pending_timer_interrupts > 0) |
| 636 |
d->pending_timer_interrupts --; |
| 637 |
break; |
| 638 |
|
| 639 |
default: |
| 640 |
if (writeflag == MEM_WRITE) |
| 641 |
debug("[ vr41xx: unimplemented write to address " |
| 642 |
"0x%"PRIx64", data=0x%016"PRIx64" ]\n", |
| 643 |
(uint64_t) relative_addr, (uint64_t) idata); |
| 644 |
else |
| 645 |
debug("[ vr41xx: unimplemented read from address " |
| 646 |
"0x%"PRIx64" ]\n", (uint64_t) relative_addr); |
| 647 |
} |
| 648 |
|
| 649 |
ret: |
| 650 |
/* |
| 651 |
* Recalculate interrupt assertions: |
| 652 |
*/ |
| 653 |
if (d->giuint & d->giumask) |
| 654 |
INTERRUPT_ASSERT(d->giu_irq); |
| 655 |
else |
| 656 |
INTERRUPT_DEASSERT(d->giu_irq); |
| 657 |
if ((d->sysint1 & d->msysint1) | (d->sysint2 & d->msysint2)) |
| 658 |
INTERRUPT_ASSERT(d->cpu_irq); |
| 659 |
else |
| 660 |
INTERRUPT_DEASSERT(d->cpu_irq); |
| 661 |
|
| 662 |
if (writeflag == MEM_READ) |
| 663 |
memory_writemax64(cpu, data, len, odata); |
| 664 |
|
| 665 |
return 1; |
| 666 |
} |
| 667 |
|
| 668 |
|
| 669 |
/* |
| 670 |
* dev_vr41xx_init(): |
| 671 |
* |
| 672 |
* machine->path is something like "emul[0].machine[0]". |
| 673 |
*/ |
| 674 |
struct vr41xx_data *dev_vr41xx_init(struct machine *machine, |
| 675 |
struct memory *mem, int cpumodel) |
| 676 |
{ |
| 677 |
struct vr41xx_data *d; |
| 678 |
uint64_t baseaddr = 0; |
| 679 |
char tmps[300]; |
| 680 |
int i; |
| 681 |
|
| 682 |
CHECK_ALLOCATION(d = malloc(sizeof(struct vr41xx_data))); |
| 683 |
memset(d, 0, sizeof(struct vr41xx_data)); |
| 684 |
|
| 685 |
/* Connect to MIPS irq 2: */ |
| 686 |
snprintf(tmps, sizeof(tmps), "%s.cpu[%i].2", |
| 687 |
machine->path, machine->bootstrap_cpu); |
| 688 |
INTERRUPT_CONNECT(tmps, d->cpu_irq); |
| 689 |
|
| 690 |
/* |
| 691 |
* Register VRIP interrupt lines 0..25: |
| 692 |
*/ |
| 693 |
for (i=0; i<=25; i++) { |
| 694 |
struct interrupt template; |
| 695 |
snprintf(tmps, sizeof(tmps), "%s.cpu[%i].vrip.%i", |
| 696 |
machine->path, machine->bootstrap_cpu, i); |
| 697 |
memset(&template, 0, sizeof(template)); |
| 698 |
template.line = i; |
| 699 |
template.name = tmps; |
| 700 |
template.extra = d; |
| 701 |
template.interrupt_assert = vr41xx_vrip_interrupt_assert; |
| 702 |
template.interrupt_deassert = vr41xx_vrip_interrupt_deassert; |
| 703 |
interrupt_handler_register(&template); |
| 704 |
} |
| 705 |
|
| 706 |
/* |
| 707 |
* Register GIU interrupt lines 0..31: |
| 708 |
*/ |
| 709 |
for (i=0; i<32; i++) { |
| 710 |
struct interrupt template; |
| 711 |
snprintf(tmps, sizeof(tmps), "%s.cpu[%i].vrip.%i.giu.%i", |
| 712 |
machine->path, machine->bootstrap_cpu, VRIP_INTR_GIU, i); |
| 713 |
memset(&template, 0, sizeof(template)); |
| 714 |
template.line = i; |
| 715 |
template.name = tmps; |
| 716 |
template.extra = d; |
| 717 |
template.interrupt_assert = vr41xx_giu_interrupt_assert; |
| 718 |
template.interrupt_deassert = vr41xx_giu_interrupt_deassert; |
| 719 |
interrupt_handler_register(&template); |
| 720 |
} |
| 721 |
|
| 722 |
d->cpumodel = cpumodel; |
| 723 |
|
| 724 |
/* TODO: VRC4173 has the KIU at offset 0x100? */ |
| 725 |
d->kiu_offset = 0x180; |
| 726 |
d->kiu_console_handle = console_start_slave_inputonly( |
| 727 |
machine, "kiu", 1); |
| 728 |
|
| 729 |
/* Connect to the KIU and GIU interrupts: */ |
| 730 |
snprintf(tmps, sizeof(tmps), "%s.cpu[%i].vrip.%i", |
| 731 |
machine->path, machine->bootstrap_cpu, VRIP_INTR_GIU); |
| 732 |
INTERRUPT_CONNECT(tmps, d->giu_irq); |
| 733 |
snprintf(tmps, sizeof(tmps), "%s.cpu[%i].vrip.%i", |
| 734 |
machine->path, machine->bootstrap_cpu, VRIP_INTR_KIU); |
| 735 |
INTERRUPT_CONNECT(tmps, d->kiu_irq); |
| 736 |
|
| 737 |
if (machine->x11_md.in_use) |
| 738 |
machine->main_console_handle = d->kiu_console_handle; |
| 739 |
|
| 740 |
switch (cpumodel) { |
| 741 |
case 4101: |
| 742 |
case 4102: |
| 743 |
case 4111: |
| 744 |
case 4121: |
| 745 |
baseaddr = 0xb000000; |
| 746 |
break; |
| 747 |
case 4181: |
| 748 |
baseaddr = 0xa000000; |
| 749 |
dev_ram_init(machine, 0xb000000, 0x1000000, DEV_RAM_MIRROR, |
| 750 |
0xa000000); |
| 751 |
break; |
| 752 |
case 4122: |
| 753 |
case 4131: |
| 754 |
baseaddr = 0xf000000; |
| 755 |
break; |
| 756 |
default: |
| 757 |
printf("Unimplemented VR cpu model\n"); |
| 758 |
exit(1); |
| 759 |
} |
| 760 |
|
| 761 |
if (d->cpumodel == 4121 || d->cpumodel == 4181) |
| 762 |
snprintf(tmps, sizeof(tmps), "%s.cpu[%i].3", |
| 763 |
machine->path, machine->bootstrap_cpu); |
| 764 |
else |
| 765 |
snprintf(tmps, sizeof(tmps), "%s.cpu[%i].vrip.%i", |
| 766 |
machine->path, machine->bootstrap_cpu, VRIP_INTR_ETIMER); |
| 767 |
INTERRUPT_CONNECT(tmps, d->timer_irq); |
| 768 |
|
| 769 |
memory_device_register(mem, "vr41xx", baseaddr, DEV_VR41XX_LENGTH, |
| 770 |
dev_vr41xx_access, (void *)d, DM_DEFAULT, NULL); |
| 771 |
|
| 772 |
/* |
| 773 |
* TODO: Find out which controllers are at which addresses on |
| 774 |
* which chips. |
| 775 |
*/ |
| 776 |
if (cpumodel == 4131) { |
| 777 |
snprintf(tmps, sizeof(tmps), "ns16550 irq=%s.cpu[%i].vrip.%i " |
| 778 |
"addr=0x%"PRIx64" name2=siu", machine->path, |
| 779 |
machine->bootstrap_cpu, VRIP_INTR_SIU, |
| 780 |
(uint64_t) (baseaddr+0x800)); |
| 781 |
device_add(machine, tmps); |
| 782 |
} else { |
| 783 |
/* This is used by Linux and NetBSD: */ |
| 784 |
snprintf(tmps, sizeof(tmps), "ns16550 irq=%s.cpu[%i]." |
| 785 |
"vrip.%i addr=0x%x name2=serial", machine->path, |
| 786 |
machine->bootstrap_cpu, VRIP_INTR_SIU, 0xc000000); |
| 787 |
device_add(machine, tmps); |
| 788 |
} |
| 789 |
|
| 790 |
/* Hm... maybe this should not be here. TODO */ |
| 791 |
snprintf(tmps, sizeof(tmps), "pcic irq=%s.cpu[%i].vrip.%i addr=" |
| 792 |
"0x140003e0", machine->path, machine->bootstrap_cpu, |
| 793 |
VRIP_INTR_GIU); |
| 794 |
device_add(machine, tmps); |
| 795 |
|
| 796 |
machine_add_tickfunction(machine, dev_vr41xx_tick, d, |
| 797 |
DEV_VR41XX_TICKSHIFT); |
| 798 |
|
| 799 |
/* Some machines (?) use ISA space at 0x15000000 instead of |
| 800 |
0x14000000, eg IBM WorkPad Z50. */ |
| 801 |
dev_ram_init(machine, 0x15000000, 0x1000000, DEV_RAM_MIRROR, |
| 802 |
0x14000000); |
| 803 |
|
| 804 |
return d; |
| 805 |
} |
| 806 |
|
Parent Directory
| 
Revision Log