VirtualBox

source: vbox/trunk/src/VBox/Devices/Storage/fdc.c@ 26837

Last change on this file since 26837 was 26562, checked in by vboxsync, 15 years ago

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1#ifdef VBOX
2/* $Id: fdc.c 26562 2010-02-16 01:05:49Z vboxsync $ */
3/** @file
4 * VBox storage devices: Floppy disk controller
5 */
6
7/*
8 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
9 *
10 * This file is part of VirtualBox Open Source Edition (OSE), as
11 * available from http://www.virtualbox.org. This file is free software;
12 * you can redistribute it and/or modify it under the terms of the GNU
13 * General Public License (GPL) as published by the Free Software
14 * Foundation, in version 2 as it comes in the "COPYING" file of the
15 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17 *
18 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
19 * Clara, CA 95054 USA or visit http://www.sun.com if you need
20 * additional information or have any questions.
21 * --------------------------------------------------------------------
22 *
23 * This code is based on:
24 *
25 * QEMU Floppy disk emulator (Intel 82078)
26 *
27 * Copyright (c) 2003 Jocelyn Mayer
28 *
29 * Permission is hereby granted, free of charge, to any person obtaining a copy
30 * of this software and associated documentation files (the "Software"), to deal
31 * in the Software without restriction, including without limitation the rights
32 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
33 * copies of the Software, and to permit persons to whom the Software is
34 * furnished to do so, subject to the following conditions:
35 *
36 * The above copyright notice and this permission notice shall be included in
37 * all copies or substantial portions of the Software.
38 *
39 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
40 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
41 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
42 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
43 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
44 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
45 * THE SOFTWARE.
46 *
47 */
48
49
50/*******************************************************************************
51* Header Files *
52*******************************************************************************/
53#define LOG_GROUP LOG_GROUP_DEV_FDC
54#include <VBox/pdmdev.h>
55#include <iprt/assert.h>
56#include <iprt/string.h>
57#include <iprt/uuid.h>
58
59#include "Builtins.h"
60#include "../vl_vbox.h"
61
62#define MAX_FD 2
63
64#define PDMIBASE_2_FDRIVE(pInterface) \
65 ((fdrive_t *)((uintptr_t)(pInterface) - RT_OFFSETOF(fdrive_t, IBase)))
66
67#define PDMIMOUNTNOTIFY_2_FDRIVE(p) \
68 ((fdrive_t *)((uintptr_t)(p) - RT_OFFSETOF(fdrive_t, IMountNotify)))
69
70#endif /* VBOX */
71
72#ifndef VBOX
73#include "vl.h"
74#endif /* !VBOX */
75
76/********************************************************/
77/* debug Floppy devices */
78/* #define DEBUG_FLOPPY */
79
80#ifndef VBOX
81 #ifdef DEBUG_FLOPPY
82 #define FLOPPY_DPRINTF(fmt, args...) \
83 do { printf("FLOPPY: " fmt , ##args); } while (0)
84 #endif
85#else /* !VBOX */
86 # ifdef LOG_ENABLED
87 static void FLOPPY_DPRINTF (const char *fmt, ...)
88 {
89 if (LogIsEnabled ()) {
90 va_list args;
91 va_start (args, fmt);
92 RTLogLogger (NULL, NULL, "floppy: %N", fmt, &args); /* %N - nested va_list * type formatting call. */
93 va_end (args);
94 }
95 }
96 # else
97 DECLINLINE(void) FLOPPY_DPRINTF(const char *pszFmt, ...) {}
98 # endif
99#endif /* !VBOX */
100
101#ifndef VBOX
102#define FLOPPY_ERROR(fmt, args...) \
103 do { printf("FLOPPY ERROR: %s: " fmt, __func__ , ##args); } while (0)
104#else /* VBOX */
105# define FLOPPY_ERROR RTLogPrintf
106#endif /* VBOX */
107
108#ifdef VBOX
109typedef struct fdctrl_t fdctrl_t;
110#endif /* VBOX */
111
112/********************************************************/
113/* Floppy drive emulation */
114
115/* Will always be a fixed parameter for us */
116#define FD_SECTOR_LEN 512
117#define FD_SECTOR_SC 2 /* Sector size code */
118
119/* Floppy disk drive emulation */
120typedef enum fdisk_type_t {
121 FDRIVE_DISK_288 = 0x01, /* 2.88 MB disk */
122 FDRIVE_DISK_144 = 0x02, /* 1.44 MB disk */
123 FDRIVE_DISK_720 = 0x03, /* 720 kB disk */
124 FDRIVE_DISK_USER = 0x04, /* User defined geometry */
125 FDRIVE_DISK_NONE = 0x05 /* No disk */
126} fdisk_type_t;
127
128typedef enum fdrive_type_t {
129 FDRIVE_DRV_144 = 0x00, /* 1.44 MB 3"5 drive */
130 FDRIVE_DRV_288 = 0x01, /* 2.88 MB 3"5 drive */
131 FDRIVE_DRV_120 = 0x02, /* 1.2 MB 5"25 drive */
132 FDRIVE_DRV_NONE = 0x03 /* No drive connected */
133} fdrive_type_t;
134
135typedef enum fdrive_flags_t {
136 FDRIVE_MOTOR_ON = 0x01, /* motor on/off */
137 FDRIVE_REVALIDATE = 0x02 /* Revalidated */
138} fdrive_flags_t;
139
140typedef enum fdisk_flags_t {
141 FDISK_DBL_SIDES = 0x01
142} fdisk_flags_t;
143
144#ifdef VBOX
145/**
146 * The status for one drive.
147 *
148 * @implements PDMIBASE
149 * @implements PDMIBLOCKPORT
150 * @implements PDMIMOUNTNOTIFY
151 */
152#endif
153typedef struct fdrive_t {
154#ifndef VBOX
155 BlockDriverState *bs;
156#else /* VBOX */
157 /** Pointer to the attached driver's base interface. */
158 R3PTRTYPE(PPDMIBASE) pDrvBase;
159 /** Pointer to the attached driver's block interface. */
160 R3PTRTYPE(PPDMIBLOCK) pDrvBlock;
161 /** Pointer to the attached driver's block bios interface. */
162 R3PTRTYPE(PPDMIBLOCKBIOS) pDrvBlockBios;
163 /** Pointer to the attached driver's mount interface.
164 * This is NULL if the driver isn't a removable unit. */
165 R3PTRTYPE(PPDMIMOUNT) pDrvMount;
166 /** The base interface. */
167 PDMIBASE IBase;
168 /** The block port interface. */
169 PDMIBLOCKPORT IPort;
170 /** The mount notify interface. */
171 PDMIMOUNTNOTIFY IMountNotify;
172 /** The LUN #. */
173 RTUINT iLUN;
174 /** The LED for this LUN. */
175 PDMLED Led;
176 /** The Diskette present/missing flag. */
177 bool fMediaPresent;
178#endif
179 /* Drive status */
180 fdrive_type_t drive;
181 fdrive_flags_t drflags;
182 uint8_t perpendicular; /* 2.88 MB access mode */
183 /* Position */
184 uint8_t head;
185 uint8_t track;
186 uint8_t sect;
187 /* Last operation status */
188 uint8_t dir; /* Direction */
189 uint8_t rw; /* Read/write */
190 /* Media */
191 fdisk_flags_t flags;
192 uint8_t last_sect; /* Nb sector per track */
193 uint8_t max_track; /* Nb of tracks */
194 uint16_t bps; /* Bytes per sector */
195 uint8_t ro; /* Is read-only */
196} fdrive_t;
197
198#ifndef VBOX
199static void fd_init (fdrive_t *drv, BlockDriverState *bs)
200{
201 /* Drive */
202 drv->bs = bs;
203 drv->drive = FDRIVE_DRV_NONE;
204 drv->drflags = 0;
205 drv->perpendicular = 0;
206 /* Disk */
207 drv->last_sect = 0;
208 drv->max_track = 0;
209}
210#endif
211
212static unsigned _fd_sector (uint8_t head, uint8_t track,
213 uint8_t sect, uint8_t last_sect)
214{
215 return (((track * 2) + head) * last_sect) + sect - 1; /* sect >= 1 */
216}
217
218/* Returns current position, in sectors, for given drive */
219static unsigned fd_sector (fdrive_t *drv)
220{
221 return _fd_sector(drv->head, drv->track, drv->sect, drv->last_sect);
222}
223
224static int fd_seek (fdrive_t *drv, uint8_t head, uint8_t track, uint8_t sect,
225 int enable_seek)
226{
227 uint32_t sector;
228 int ret;
229
230 if (track > drv->max_track ||
231 (head != 0 && (drv->flags & FDISK_DBL_SIDES) == 0)) {
232 FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
233 head, track, sect, 1,
234 (drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
235 drv->max_track, drv->last_sect);
236 return 2;
237 }
238 if (sect > drv->last_sect) {
239 FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
240 head, track, sect, 1,
241 (drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
242 drv->max_track, drv->last_sect);
243 return 3;
244 }
245 sector = _fd_sector(head, track, sect, drv->last_sect);
246 ret = 0;
247 if (sector != fd_sector(drv)) {
248#if 0
249 if (!enable_seek) {
250 FLOPPY_ERROR("no implicit seek %d %02x %02x (max=%d %02x %02x)\n",
251 head, track, sect, 1, drv->max_track, drv->last_sect);
252 return 4;
253 }
254#endif
255 drv->head = head;
256 if (drv->track != track)
257 ret = 1;
258 drv->track = track;
259 drv->sect = sect;
260 }
261
262 return ret;
263}
264
265/* Set drive back to track 0 */
266static void fd_recalibrate (fdrive_t *drv)
267{
268 FLOPPY_DPRINTF("recalibrate\n");
269 drv->head = 0;
270 drv->track = 0;
271 drv->sect = 1;
272 drv->dir = 1;
273 drv->rw = 0;
274}
275
276/* Recognize floppy formats */
277typedef struct fd_format_t {
278 fdrive_type_t drive;
279 fdisk_type_t disk;
280 uint8_t last_sect;
281 uint8_t max_track;
282 uint8_t max_head;
283 const char *str;
284} fd_format_t;
285
286static fd_format_t fd_formats[] = {
287 /* First entry is default format */
288 /* 1.44 MB 3"1/2 floppy disks */
289 { FDRIVE_DRV_144, FDRIVE_DISK_144, 18, 80, 1, "1.44 MB 3\"1/2", },
290 { FDRIVE_DRV_144, FDRIVE_DISK_144, 20, 80, 1, "1.6 MB 3\"1/2", },
291 { FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 80, 1, "1.68 MB 3\"1/2", },
292 { FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 82, 1, "1.72 MB 3\"1/2", },
293 { FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 83, 1, "1.74 MB 3\"1/2", },
294 { FDRIVE_DRV_144, FDRIVE_DISK_144, 22, 80, 1, "1.76 MB 3\"1/2", },
295 { FDRIVE_DRV_144, FDRIVE_DISK_144, 23, 80, 1, "1.84 MB 3\"1/2", },
296 { FDRIVE_DRV_144, FDRIVE_DISK_144, 24, 80, 1, "1.92 MB 3\"1/2", },
297 /* 2.88 MB 3"1/2 floppy disks */
298 { FDRIVE_DRV_288, FDRIVE_DISK_288, 36, 80, 1, "2.88 MB 3\"1/2", },
299 { FDRIVE_DRV_288, FDRIVE_DISK_288, 39, 80, 1, "3.12 MB 3\"1/2", },
300 { FDRIVE_DRV_288, FDRIVE_DISK_288, 40, 80, 1, "3.2 MB 3\"1/2", },
301 { FDRIVE_DRV_288, FDRIVE_DISK_288, 44, 80, 1, "3.52 MB 3\"1/2", },
302 { FDRIVE_DRV_288, FDRIVE_DISK_288, 48, 80, 1, "3.84 MB 3\"1/2", },
303 /* 720 kB 3"1/2 floppy disks */
304 { FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 1, "720 kB 3\"1/2", },
305 { FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 80, 1, "800 kB 3\"1/2", },
306 { FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 82, 1, "820 kB 3\"1/2", },
307 { FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 83, 1, "830 kB 3\"1/2", },
308 { FDRIVE_DRV_144, FDRIVE_DISK_720, 13, 80, 1, "1.04 MB 3\"1/2", },
309 { FDRIVE_DRV_144, FDRIVE_DISK_720, 14, 80, 1, "1.12 MB 3\"1/2", },
310 /* 1.2 MB 5"1/4 floppy disks */
311 { FDRIVE_DRV_120, FDRIVE_DISK_288, 15, 80, 1, "1.2 kB 5\"1/4", },
312 { FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 80, 1, "1.44 MB 5\"1/4", },
313 { FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 82, 1, "1.48 MB 5\"1/4", },
314 { FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 83, 1, "1.49 MB 5\"1/4", },
315 { FDRIVE_DRV_120, FDRIVE_DISK_288, 20, 80, 1, "1.6 MB 5\"1/4", },
316 /* 720 kB 5"1/4 floppy disks */
317 { FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 80, 1, "720 kB 5\"1/4", },
318 { FDRIVE_DRV_120, FDRIVE_DISK_288, 11, 80, 1, "880 kB 5\"1/4", },
319 /* 360 kB 5"1/4 floppy disks */
320 { FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 1, "360 kB 5\"1/4", },
321 { FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 0, "180 kB 5\"1/4", },
322 { FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 41, 1, "410 kB 5\"1/4", },
323 { FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 42, 1, "420 kB 5\"1/4", },
324 /* 320 kB 5"1/4 floppy disks */
325 { FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 1, "320 kB 5\"1/4", },
326 { FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 0, "160 kB 5\"1/4", },
327 /* 360 kB must match 5"1/4 better than 3"1/2... */
328 { FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 0, "360 kB 3\"1/2", },
329 /* end */
330 { FDRIVE_DRV_NONE, FDRIVE_DISK_NONE, -1, -1, 0, NULL, },
331};
332
333/* Revalidate a disk drive after a disk change */
334static void fd_revalidate (fdrive_t *drv)
335{
336 fd_format_t *parse;
337 int64_t nb_sectors, size;
338 int i, first_match, match;
339 int nb_heads, max_track, last_sect, ro;
340
341 FLOPPY_DPRINTF("revalidate\n");
342 drv->drflags &= ~FDRIVE_REVALIDATE;
343#ifndef VBOX
344 if (drv->bs != NULL && bdrv_is_inserted(drv->bs)) {
345 ro = bdrv_is_read_only(drv->bs);
346 bdrv_get_geometry_hint(drv->bs, &nb_heads, &max_track, &last_sect);
347#else /* VBOX */
348 /** @todo */ /** @todo r=bird: todo what exactly? */
349 if (drv->pDrvBlock
350 && drv->pDrvMount
351 && drv->pDrvMount->pfnIsMounted (drv->pDrvMount)) {
352 ro = drv->pDrvBlock->pfnIsReadOnly (drv->pDrvBlock);
353 nb_heads = 0;
354 max_track = 0;
355 last_sect = 0;
356#endif /* VBOX */
357 if (nb_heads != 0 && max_track != 0 && last_sect != 0) {
358 FLOPPY_DPRINTF("User defined disk (%d %d %d)",
359 nb_heads - 1, max_track, last_sect);
360 } else {
361#ifndef VBOX
362 bdrv_get_geometry(drv->bs, &nb_sectors);
363#else /* VBOX */
364 /* @todo */ /** @todo r=bird: todo what exactly?!?!? */
365 {
366 uint64_t size2 = drv->pDrvBlock->pfnGetSize (drv->pDrvBlock);
367 nb_sectors = size2 / 512;
368 }
369#endif /* VBOX */
370 match = -1;
371 first_match = -1;
372 for (i = 0;; i++) {
373 parse = &fd_formats[i];
374 if (parse->drive == FDRIVE_DRV_NONE)
375 break;
376 if (drv->drive == parse->drive ||
377 drv->drive == FDRIVE_DRV_NONE) {
378 size = (parse->max_head + 1) * parse->max_track *
379 parse->last_sect;
380 if (nb_sectors == size) {
381 match = i;
382 break;
383 }
384 if (first_match == -1)
385 first_match = i;
386 }
387 }
388 if (match == -1) {
389 if (first_match == -1)
390 match = 1;
391 else
392 match = first_match;
393 parse = &fd_formats[match];
394 }
395 nb_heads = parse->max_head + 1;
396 max_track = parse->max_track;
397 last_sect = parse->last_sect;
398 drv->drive = parse->drive;
399 FLOPPY_DPRINTF("%s floppy disk (%d h %d t %d s) %s\n", parse->str,
400 nb_heads, max_track, last_sect, ro ? "ro" : "rw");
401 }
402 if (nb_heads == 1) {
403 drv->flags &= ~FDISK_DBL_SIDES;
404 } else {
405 drv->flags |= FDISK_DBL_SIDES;
406 }
407 drv->max_track = max_track;
408 drv->last_sect = last_sect;
409 drv->ro = ro;
410#ifdef VBOX
411 drv->fMediaPresent = true;
412#endif
413 } else {
414 FLOPPY_DPRINTF("No disk in drive\n");
415 drv->last_sect = 0;
416 drv->max_track = 0;
417 drv->flags &= ~FDISK_DBL_SIDES;
418#ifdef VBOX
419 drv->fMediaPresent = false;
420#endif
421 }
422 drv->drflags |= FDRIVE_REVALIDATE;
423}
424
425/* Motor control */
426static void fd_start (fdrive_t *drv)
427{
428 drv->drflags |= FDRIVE_MOTOR_ON;
429}
430
431static void fd_stop (fdrive_t *drv)
432{
433 drv->drflags &= ~FDRIVE_MOTOR_ON;
434}
435
436/* Re-initialise a drives (motor off, repositioned) */
437static void fd_reset (fdrive_t *drv)
438{
439 fd_stop(drv);
440 fd_recalibrate(drv);
441}
442
443/********************************************************/
444/* Intel 82078 floppy disk controller emulation */
445
446#define target_ulong uint32_t
447static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq);
448static void fdctrl_reset_fifo (fdctrl_t *fdctrl);
449#ifndef VBOX
450static int fdctrl_transfer_handler (void *opaque, int nchan, int dma_pos, int dma_len);
451#else /* VBOX: */
452static DECLCALLBACK(uint32_t) fdctrl_transfer_handler (PPDMDEVINS pDevIns,
453 void *opaque,
454 unsigned nchan,
455 uint32_t dma_pos,
456 uint32_t dma_len);
457#endif /* VBOX */
458static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status);
459static void fdctrl_result_timer(void *opaque);
460
461static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl);
462static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl);
463static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value);
464static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl);
465static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value);
466static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl);
467static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value);
468static uint32_t fdctrl_read_data (fdctrl_t *fdctrl);
469static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value);
470static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl);
471
472enum {
473 FD_CTRL_ACTIVE = 0x01, /* XXX: suppress that */
474 FD_CTRL_RESET = 0x02,
475 FD_CTRL_SLEEP = 0x04, /* XXX: suppress that */
476 FD_CTRL_BUSY = 0x08, /* dma transfer in progress */
477 FD_CTRL_INTR = 0x10
478};
479
480enum {
481 FD_DIR_WRITE = 0,
482 FD_DIR_READ = 1,
483 FD_DIR_SCANE = 2,
484 FD_DIR_SCANL = 3,
485 FD_DIR_SCANH = 4
486};
487
488enum {
489 FD_STATE_CMD = 0x00,
490 FD_STATE_STATUS = 0x01,
491 FD_STATE_DATA = 0x02,
492 FD_STATE_STATE = 0x03,
493 FD_STATE_MULTI = 0x10,
494 FD_STATE_SEEK = 0x20,
495 FD_STATE_FORMAT = 0x40
496};
497
498#define FD_STATE(state) ((state) & FD_STATE_STATE)
499#define FD_SET_STATE(state, new_state) \
500do { (state) = ((state) & ~FD_STATE_STATE) | (new_state); } while (0)
501#define FD_MULTI_TRACK(state) ((state) & FD_STATE_MULTI)
502#define FD_DID_SEEK(state) ((state) & FD_STATE_SEEK)
503#define FD_FORMAT_CMD(state) ((state) & FD_STATE_FORMAT)
504
505#ifdef VBOX
506/**
507 * Floppy controller state.
508 *
509 * @implements PDMILEDPORTS
510 */
511#endif
512struct fdctrl_t {
513#ifndef VBOX
514 fdctrl_t *fdctrl;
515#endif
516 /* Controller's identification */
517 uint8_t version;
518 /* HW */
519#ifndef VBOX
520 int irq_lvl;
521 int dma_chann;
522#else
523 uint8_t irq_lvl;
524 uint8_t dma_chann;
525#endif
526 uint32_t io_base;
527 /* Controller state */
528 QEMUTimer *result_timer;
529 uint8_t state;
530 uint8_t dma_en;
531 uint8_t cur_drv;
532 uint8_t bootsel;
533 /* Command FIFO */
534 uint8_t fifo[FD_SECTOR_LEN];
535 uint32_t data_pos;
536 uint32_t data_len;
537 uint8_t data_state;
538 uint8_t data_dir;
539 uint8_t int_status;
540 uint8_t eot; /* last wanted sector */
541 /* States kept only to be returned back */
542 /* Timers state */
543 uint8_t timer0;
544 uint8_t timer1;
545 /* precompensation */
546 uint8_t precomp_trk;
547 uint8_t config;
548 uint8_t lock;
549 /* Power down config (also with status regB access mode */
550 uint8_t pwrd;
551 /* Floppy drives */
552 fdrive_t drives[2];
553#ifdef VBOX
554 /** Pointer to device instance. */
555 PPDMDEVINS pDevIns;
556
557 /** Status LUN: The base interface. */
558 PDMIBASE IBaseStatus;
559 /** Status LUN: The Leds interface. */
560 PDMILEDPORTS ILeds;
561 /** Status LUN: The Partner of ILeds. */
562 PPDMILEDCONNECTORS pLedsConnector;
563#endif
564};
565
566static uint32_t fdctrl_read (void *opaque, uint32_t reg)
567{
568 fdctrl_t *fdctrl = opaque;
569 uint32_t retval;
570
571 switch (reg & 0x07) {
572 case 0x01:
573 retval = fdctrl_read_statusB(fdctrl);
574 break;
575 case 0x02:
576 retval = fdctrl_read_dor(fdctrl);
577 break;
578 case 0x03:
579 retval = fdctrl_read_tape(fdctrl);
580 break;
581 case 0x04:
582 retval = fdctrl_read_main_status(fdctrl);
583 break;
584 case 0x05:
585 retval = fdctrl_read_data(fdctrl);
586 break;
587 case 0x07:
588 retval = fdctrl_read_dir(fdctrl);
589 break;
590 default:
591 retval = (uint32_t)(-1);
592 break;
593 }
594 FLOPPY_DPRINTF("read reg%d: 0x%02x\n", reg & 7, retval);
595
596 return retval;
597}
598
599static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value)
600{
601 fdctrl_t *fdctrl = opaque;
602
603 FLOPPY_DPRINTF("write reg%d: 0x%02x\n", reg & 7, value);
604
605 switch (reg & 0x07) {
606 case 0x02:
607 fdctrl_write_dor(fdctrl, value);
608 break;
609 case 0x03:
610 fdctrl_write_tape(fdctrl, value);
611 break;
612 case 0x04:
613 fdctrl_write_rate(fdctrl, value);
614 break;
615 case 0x05:
616 fdctrl_write_data(fdctrl, value);
617 break;
618 default:
619 break;
620 }
621}
622
623#ifndef VBOX
624static void fd_change_cb (void *opaque)
625{
626 fdrive_t *drv = opaque;
627
628 FLOPPY_DPRINTF("disk change\n");
629 fd_revalidate(drv);
630#if 0
631 fd_recalibrate(drv);
632 fdctrl_reset_fifo(drv->fdctrl);
633 fdctrl_raise_irq(drv->fdctrl, 0x20);
634#endif
635}
636
637#else /* VBOX */
638/**
639 * Called when a media is mounted.
640 *
641 * @param pInterface Pointer to the interface structure
642 * containing the called function pointer.
643 */
644static DECLCALLBACK(void) fdMountNotify(PPDMIMOUNTNOTIFY pInterface)
645{
646 fdrive_t *drv = PDMIMOUNTNOTIFY_2_FDRIVE (pInterface);
647 LogFlow(("fdMountNotify:\n"));
648 fd_revalidate (drv);
649}
650
651/**
652 * Called when a media is unmounted
653 * @param pInterface Pointer to the interface structure containing the called function pointer.
654 */
655static DECLCALLBACK(void) fdUnmountNotify(PPDMIMOUNTNOTIFY pInterface)
656{
657 fdrive_t *drv = PDMIMOUNTNOTIFY_2_FDRIVE (pInterface);
658 LogFlow(("fdUnmountNotify:\n"));
659 fd_revalidate (drv);
660}
661#endif
662
663#ifndef VBOX
664fdctrl_t *fdctrl_init (int irq_lvl, int dma_chann, int mem_mapped,
665 uint32_t io_base,
666 BlockDriverState **fds)
667{
668 fdctrl_t *fdctrl;
669/* // int io_mem; */
670 int i;
671
672 FLOPPY_DPRINTF("init controller\n");
673 fdctrl = qemu_mallocz(sizeof(fdctrl_t));
674 if (!fdctrl)
675 return NULL;
676 fdctrl->result_timer = qemu_new_timer(vm_clock,
677 fdctrl_result_timer, fdctrl);
678
679 fdctrl->version = 0x90; /* Intel 82078 controller */
680 fdctrl->irq_lvl = irq_lvl;
681 fdctrl->dma_chann = dma_chann;
682 fdctrl->io_base = io_base;
683 fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
684 if (fdctrl->dma_chann != -1) {
685 fdctrl->dma_en = 1;
686 DMA_register_channel(dma_chann, &fdctrl_transfer_handler, fdctrl);
687 } else {
688 fdctrl->dma_en = 0;
689 }
690 for (i = 0; i < 2; i++) {
691 fd_init(&fdctrl->drives[i], fds[i]);
692 if (fds[i]) {
693 bdrv_set_change_cb(fds[i],
694 &fd_change_cb, &fdctrl->drives[i]);
695 }
696 }
697 fdctrl_reset(fdctrl, 0);
698 fdctrl->state = FD_CTRL_ACTIVE;
699 if (mem_mapped) {
700 FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
701#if 0
702 io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
703 cpu_register_physical_memory(base, 0x08, io_mem);
704#endif
705 } else {
706 register_ioport_read(io_base + 0x01, 5, 1, &fdctrl_read, fdctrl);
707 register_ioport_read(io_base + 0x07, 1, 1, &fdctrl_read, fdctrl);
708 register_ioport_write(io_base + 0x01, 5, 1, &fdctrl_write, fdctrl);
709 register_ioport_write(io_base + 0x07, 1, 1, &fdctrl_write, fdctrl);
710 }
711 for (i = 0; i < 2; i++) {
712 fd_revalidate(&fdctrl->drives[i]);
713 }
714
715 return fdctrl;
716}
717
718/* XXX: may change if moved to bdrv */
719int fdctrl_get_drive_type(fdctrl_t *fdctrl, int drive_num)
720{
721 return fdctrl->drives[drive_num].drive;
722}
723#endif
724
725/* Change IRQ state */
726static void fdctrl_reset_irq (fdctrl_t *fdctrl)
727{
728 FLOPPY_DPRINTF("Reset interrupt\n");
729#ifdef VBOX
730 PDMDevHlpISASetIrq (fdctrl->pDevIns, fdctrl->irq_lvl, 0);
731#else
732 pic_set_irq(fdctrl->irq_lvl, 0);
733#endif
734 fdctrl->state &= ~FD_CTRL_INTR;
735}
736
737static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status)
738{
739 if (~(fdctrl->state & FD_CTRL_INTR)) {
740#ifdef VBOX
741 PDMDevHlpISASetIrq (fdctrl->pDevIns, fdctrl->irq_lvl, 1);
742#else
743 pic_set_irq(fdctrl->irq_lvl, 1);
744#endif
745 fdctrl->state |= FD_CTRL_INTR;
746 }
747 FLOPPY_DPRINTF("Set interrupt status to 0x%02x\n", status);
748 fdctrl->int_status = status;
749}
750
751/* Reset controller */
752static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq)
753{
754 int i;
755
756 FLOPPY_DPRINTF("reset controller\n");
757 fdctrl_reset_irq(fdctrl);
758 /* Initialise controller */
759 fdctrl->cur_drv = 0;
760 /* FIFO state */
761 fdctrl->data_pos = 0;
762 fdctrl->data_len = 0;
763 fdctrl->data_state = FD_STATE_CMD;
764 fdctrl->data_dir = FD_DIR_WRITE;
765 for (i = 0; i < MAX_FD; i++)
766 fd_reset(&fdctrl->drives[i]);
767 fdctrl_reset_fifo(fdctrl);
768 if (do_irq)
769 fdctrl_raise_irq(fdctrl, 0xc0);
770}
771
772static inline fdrive_t *drv0 (fdctrl_t *fdctrl)
773{
774 return &fdctrl->drives[fdctrl->bootsel];
775}
776
777static inline fdrive_t *drv1 (fdctrl_t *fdctrl)
778{
779 return &fdctrl->drives[1 - fdctrl->bootsel];
780}
781
782static fdrive_t *get_cur_drv (fdctrl_t *fdctrl)
783{
784 return fdctrl->cur_drv == 0 ? drv0(fdctrl) : drv1(fdctrl);
785}
786
787/* Status B register : 0x01 (read-only) */
788static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl)
789{
790 FLOPPY_DPRINTF("status register: 0x00\n");
791 return 0;
792}
793
794/* Digital output register : 0x02 */
795static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl)
796{
797 uint32_t retval = 0;
798
799 /* Drive motors state indicators */
800#ifndef VBOX
801 if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
802 retval |= 1 << 5;
803 if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
804 retval |= 1 << 4;
805#else
806 /* bit4: 0 = drive 0 motor off/1 = on */
807 if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
808 retval |= RT_BIT(4);
809 /* bit5: 0 = drive 1 motor off/1 = on */
810 if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
811 retval |= RT_BIT(5);
812#endif
813 /* DMA enable */
814 retval |= fdctrl->dma_en << 3;
815 /* Reset indicator */
816 retval |= (fdctrl->state & FD_CTRL_RESET) == 0 ? 0x04 : 0;
817 /* Selected drive */
818 retval |= fdctrl->cur_drv;
819 FLOPPY_DPRINTF("digital output register: 0x%02x\n", retval);
820
821 return retval;
822}
823
824static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value)
825{
826 /* Reset mode */
827 if (fdctrl->state & FD_CTRL_RESET) {
828 if (!(value & 0x04)) {
829 FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
830 return;
831 }
832 }
833 FLOPPY_DPRINTF("digital output register set to 0x%02x\n", value);
834 /* Drive motors state indicators */
835 if (value & 0x20)
836 fd_start(drv1(fdctrl));
837 else
838 fd_stop(drv1(fdctrl));
839 if (value & 0x10)
840 fd_start(drv0(fdctrl));
841 else
842 fd_stop(drv0(fdctrl));
843 /* DMA enable */
844#if 0
845 if (fdctrl->dma_chann != -1)
846 fdctrl->dma_en = 1 - ((value >> 3) & 1);
847#endif
848 /* Reset */
849 if (!(value & 0x04)) {
850 if (!(fdctrl->state & FD_CTRL_RESET)) {
851 FLOPPY_DPRINTF("controller enter RESET state\n");
852 fdctrl->state |= FD_CTRL_RESET;
853 }
854 } else {
855 if (fdctrl->state & FD_CTRL_RESET) {
856 FLOPPY_DPRINTF("controller out of RESET state\n");
857 fdctrl_reset(fdctrl, 1);
858 fdctrl->state &= ~(FD_CTRL_RESET | FD_CTRL_SLEEP);
859 }
860 }
861 /* Selected drive */
862 fdctrl->cur_drv = value & 1;
863}
864
865/* Tape drive register : 0x03 */
866static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl)
867{
868 uint32_t retval = 0;
869
870 /* Disk boot selection indicator */
871 retval |= fdctrl->bootsel << 2;
872 /* Tape indicators: never allowed */
873 FLOPPY_DPRINTF("tape drive register: 0x%02x\n", retval);
874
875 return retval;
876}
877
878static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value)
879{
880 /* Reset mode */
881 if (fdctrl->state & FD_CTRL_RESET) {
882 FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
883 return;
884 }
885 FLOPPY_DPRINTF("tape drive register set to 0x%02x\n", value);
886 /* Disk boot selection indicator */
887 fdctrl->bootsel = (value >> 2) & 1;
888 /* Tape indicators: never allow */
889}
890
891/* Main status register : 0x04 (read) */
892static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl)
893{
894 uint32_t retval = 0;
895
896 fdctrl->state &= ~(FD_CTRL_SLEEP | FD_CTRL_RESET);
897 if (!(fdctrl->state & FD_CTRL_BUSY)) {
898 /* Data transfer allowed */
899 retval |= 0x80;
900 /* Data transfer direction indicator */
901 if (fdctrl->data_dir == FD_DIR_READ)
902 retval |= 0x40;
903 }
904 /* Should handle 0x20 for SPECIFY command */
905 /* Command busy indicator */
906 if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA ||
907 FD_STATE(fdctrl->data_state) == FD_STATE_STATUS)
908 retval |= 0x10;
909 FLOPPY_DPRINTF("main status register: 0x%02x\n", retval);
910
911 return retval;
912}
913
914/* Data select rate register : 0x04 (write) */
915static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value)
916{
917 /* Reset mode */
918 if (fdctrl->state & FD_CTRL_RESET) {
919 FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
920 return;
921 }
922 FLOPPY_DPRINTF("select rate register set to 0x%02x\n", value);
923 /* Reset: autoclear */
924 if (value & 0x80) {
925 fdctrl->state |= FD_CTRL_RESET;
926 fdctrl_reset(fdctrl, 1);
927 fdctrl->state &= ~FD_CTRL_RESET;
928 }
929 if (value & 0x40) {
930 fdctrl->state |= FD_CTRL_SLEEP;
931 fdctrl_reset(fdctrl, 1);
932 }
933/* // fdctrl.precomp = (value >> 2) & 0x07; */
934}
935
936/* Digital input register : 0x07 (read-only) */
937static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl)
938{
939 uint32_t retval = 0;
940
941#ifndef VBOX
942 if (drv0(fdctrl)->drflags & FDRIVE_REVALIDATE ||
943 drv1(fdctrl)->drflags & FDRIVE_REVALIDATE)
944#else
945 fdrive_t *cur_drv = get_cur_drv(fdctrl);
946 if ( drv0(fdctrl)->drflags & FDRIVE_REVALIDATE
947 || drv1(fdctrl)->drflags & FDRIVE_REVALIDATE
948 || !cur_drv->fMediaPresent)
949#endif
950 retval |= 0x80;
951 if (retval != 0)
952 FLOPPY_DPRINTF("Floppy digital input register: 0x%02x\n", retval);
953 drv0(fdctrl)->drflags &= ~FDRIVE_REVALIDATE;
954 drv1(fdctrl)->drflags &= ~FDRIVE_REVALIDATE;
955
956 return retval;
957}
958
959/* FIFO state control */
960static void fdctrl_reset_fifo (fdctrl_t *fdctrl)
961{
962 fdctrl->data_dir = FD_DIR_WRITE;
963 fdctrl->data_pos = 0;
964 FD_SET_STATE(fdctrl->data_state, FD_STATE_CMD);
965}
966
967/* Set FIFO status for the host to read */
968static void fdctrl_set_fifo (fdctrl_t *fdctrl, int fifo_len, int do_irq)
969{
970 fdctrl->data_dir = FD_DIR_READ;
971 fdctrl->data_len = fifo_len;
972 fdctrl->data_pos = 0;
973 FD_SET_STATE(fdctrl->data_state, FD_STATE_STATUS);
974 if (do_irq)
975 fdctrl_raise_irq(fdctrl, 0x00);
976}
977
978/* Set an error: unimplemented/unknown command */
979static void fdctrl_unimplemented (fdctrl_t *fdctrl)
980{
981#if 0
982 fdrive_t *cur_drv;
983
984 cur_drv = get_cur_drv(fdctrl);
985 fdctrl->fifo[0] = 0x60 | (cur_drv->head << 2) | fdctrl->cur_drv;
986 fdctrl->fifo[1] = 0x00;
987 fdctrl->fifo[2] = 0x00;
988 fdctrl_set_fifo(fdctrl, 3, 1);
989#else
990 /* // fdctrl_reset_fifo(fdctrl); */
991 fdctrl->fifo[0] = 0x80;
992 fdctrl_set_fifo(fdctrl, 1, 0);
993#endif
994}
995
996/* Callback for transfer end (stop or abort) */
997static void fdctrl_stop_transfer (fdctrl_t *fdctrl, uint8_t status0,
998 uint8_t status1, uint8_t status2)
999{
1000 fdrive_t *cur_drv;
1001
1002 cur_drv = get_cur_drv(fdctrl);
1003 FLOPPY_DPRINTF("transfer status: %02x %02x %02x (%02x)\n",
1004 status0, status1, status2,
1005 status0 | (cur_drv->head << 2) | fdctrl->cur_drv);
1006 fdctrl->fifo[0] = status0 | (cur_drv->head << 2) | fdctrl->cur_drv;
1007 fdctrl->fifo[1] = status1;
1008 fdctrl->fifo[2] = status2;
1009 fdctrl->fifo[3] = cur_drv->track;
1010 fdctrl->fifo[4] = cur_drv->head;
1011 fdctrl->fifo[5] = cur_drv->sect;
1012 fdctrl->fifo[6] = FD_SECTOR_SC;
1013 fdctrl->data_dir = FD_DIR_READ;
1014 if (fdctrl->state & FD_CTRL_BUSY) {
1015#ifdef VBOX
1016 PDMDevHlpDMASetDREQ (fdctrl->pDevIns, fdctrl->dma_chann, 0);
1017#else
1018 DMA_release_DREQ(fdctrl->dma_chann);
1019#endif
1020 fdctrl->state &= ~FD_CTRL_BUSY;
1021 }
1022 fdctrl_set_fifo(fdctrl, 7, 1);
1023}
1024
1025/* Prepare a data transfer (either DMA or FIFO) */
1026static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
1027{
1028 fdrive_t *cur_drv;
1029 uint8_t kh, kt, ks;
1030 int did_seek;
1031
1032 fdctrl->cur_drv = fdctrl->fifo[1] & 1;
1033 cur_drv = get_cur_drv(fdctrl);
1034 kt = fdctrl->fifo[2];
1035 kh = fdctrl->fifo[3];
1036 ks = fdctrl->fifo[4];
1037 FLOPPY_DPRINTF("Start transfer at %d %d %02x %02x (%d)\n",
1038 fdctrl->cur_drv, kh, kt, ks,
1039 _fd_sector(kh, kt, ks, cur_drv->last_sect));
1040 did_seek = 0;
1041 switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
1042 case 2:
1043 /* sect too big */
1044 fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1045 fdctrl->fifo[3] = kt;
1046 fdctrl->fifo[4] = kh;
1047 fdctrl->fifo[5] = ks;
1048 return;
1049 case 3:
1050 /* track too big */
1051 fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
1052 fdctrl->fifo[3] = kt;
1053 fdctrl->fifo[4] = kh;
1054 fdctrl->fifo[5] = ks;
1055 return;
1056 case 4:
1057 /* No seek enabled */
1058 fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1059 fdctrl->fifo[3] = kt;
1060 fdctrl->fifo[4] = kh;
1061 fdctrl->fifo[5] = ks;
1062 return;
1063 case 1:
1064 did_seek = 1;
1065 break;
1066 default:
1067 break;
1068 }
1069 /* Set the FIFO state */
1070 fdctrl->data_dir = direction;
1071 fdctrl->data_pos = 0;
1072 FD_SET_STATE(fdctrl->data_state, FD_STATE_DATA); /* FIFO ready for data */
1073 if (fdctrl->fifo[0] & 0x80)
1074 fdctrl->data_state |= FD_STATE_MULTI;
1075 else
1076 fdctrl->data_state &= ~FD_STATE_MULTI;
1077 if (did_seek)
1078 fdctrl->data_state |= FD_STATE_SEEK;
1079 else
1080 fdctrl->data_state &= ~FD_STATE_SEEK;
1081 if (fdctrl->fifo[5] == 00) {
1082 fdctrl->data_len = fdctrl->fifo[8];
1083 } else {
1084 int tmp;
1085 fdctrl->data_len = 128 << fdctrl->fifo[5];
1086 tmp = (cur_drv->last_sect - ks + 1);
1087 if (fdctrl->fifo[0] & 0x80)
1088 tmp += cur_drv->last_sect;
1089 fdctrl->data_len *= tmp;
1090 }
1091 fdctrl->eot = fdctrl->fifo[6];
1092 if (fdctrl->dma_en) {
1093 int dma_mode;
1094 /* DMA transfer are enabled. Check if DMA channel is well programmed */
1095#ifndef VBOX
1096 dma_mode = DMA_get_channel_mode(fdctrl->dma_chann);
1097#else
1098 dma_mode = PDMDevHlpDMAGetChannelMode (fdctrl->pDevIns, fdctrl->dma_chann);
1099#endif
1100 dma_mode = (dma_mode >> 2) & 3;
1101 FLOPPY_DPRINTF("dma_mode=%d direction=%d (%d - %d)\n",
1102 dma_mode, direction,
1103 (128 << fdctrl->fifo[5]) *
1104 (cur_drv->last_sect - ks + 1), fdctrl->data_len);
1105 if (((direction == FD_DIR_SCANE || direction == FD_DIR_SCANL ||
1106 direction == FD_DIR_SCANH) && dma_mode == 0) ||
1107 (direction == FD_DIR_WRITE && dma_mode == 2) ||
1108 (direction == FD_DIR_READ && dma_mode == 1)) {
1109 /* No access is allowed until DMA transfer has completed */
1110 fdctrl->state |= FD_CTRL_BUSY;
1111 /* Now, we just have to wait for the DMA controller to
1112 * recall us...
1113 */
1114#ifndef VBOX
1115 DMA_hold_DREQ(fdctrl->dma_chann);
1116 DMA_schedule(fdctrl->dma_chann);
1117#else
1118 PDMDevHlpDMASetDREQ (fdctrl->pDevIns, fdctrl->dma_chann, 1);
1119 PDMDevHlpDMASchedule (fdctrl->pDevIns);
1120#endif
1121 return;
1122 } else {
1123 FLOPPY_ERROR("dma_mode=%d direction=%d\n", dma_mode, direction);
1124 }
1125 }
1126 FLOPPY_DPRINTF("start non-DMA transfer\n");
1127 /* IO based transfer: calculate len */
1128 fdctrl_raise_irq(fdctrl, 0x00);
1129
1130 return;
1131}
1132
1133/* Prepare a transfer of deleted data */
1134static void fdctrl_start_transfer_del (fdctrl_t *fdctrl, int direction)
1135{
1136 /* We don't handle deleted data,
1137 * so we don't return *ANYTHING*
1138 */
1139 fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1140}
1141
1142#if 0
1143#include <stdio.h>
1144#include <stdlib.h>
1145
1146static FILE * f;
1147static void dump (void *p, size_t len)
1148{
1149 size_t n;
1150
1151 if (!f) {
1152 f = fopen ("dump", "wb");
1153 if (!f)
1154 exit (0);
1155 }
1156
1157 n = fwrite (p, len, 1, f);
1158 if (n != 1) {
1159 AssertMsgFailed (("failed to dump\n"));
1160 exit (0);
1161 }
1162}
1163#else
1164#define dump(a,b) do { } while (0)
1165#endif
1166
1167/* handlers for DMA transfers */
1168#ifdef VBOX
1169static DECLCALLBACK(uint32_t) fdctrl_transfer_handler (PPDMDEVINS pDevIns,
1170 void *opaque,
1171 unsigned nchan,
1172 uint32_t dma_pos,
1173 uint32_t dma_len)
1174#else
1175static int fdctrl_transfer_handler (void *opaque, int nchan,
1176 int dma_pos, int dma_len)
1177#endif
1178{
1179 fdctrl_t *fdctrl;
1180 fdrive_t *cur_drv;
1181#ifdef VBOX
1182 int rc;
1183 uint32_t len, start_pos, rel_pos;
1184#else
1185 int len, start_pos, rel_pos;
1186#endif
1187 uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
1188
1189 fdctrl = opaque;
1190 if (!(fdctrl->state & FD_CTRL_BUSY)) {
1191 FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
1192 return 0;
1193 }
1194 cur_drv = get_cur_drv(fdctrl);
1195 if (fdctrl->data_dir == FD_DIR_SCANE || fdctrl->data_dir == FD_DIR_SCANL ||
1196 fdctrl->data_dir == FD_DIR_SCANH)
1197 status2 = 0x04;
1198 if (dma_len > fdctrl->data_len)
1199 dma_len = fdctrl->data_len;
1200#ifndef VBOX
1201 if (cur_drv->bs == NULL) {
1202#else /* !VBOX */
1203 if (cur_drv->pDrvBlock == NULL) {
1204#endif
1205 if (fdctrl->data_dir == FD_DIR_WRITE)
1206 fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1207 else
1208 fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1209 len = 0;
1210 goto transfer_error;
1211 }
1212 rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1213 for (start_pos = fdctrl->data_pos; fdctrl->data_pos < dma_len;) {
1214 len = dma_len - fdctrl->data_pos;
1215 if (len + rel_pos > FD_SECTOR_LEN)
1216 len = FD_SECTOR_LEN - rel_pos;
1217 FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x "
1218 "(%d-0x%08x 0x%08x)\n", len, dma_len, fdctrl->data_pos,
1219 fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
1220 cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
1221 fd_sector(cur_drv) * 512);
1222 if (fdctrl->data_dir != FD_DIR_WRITE ||
1223 len < FD_SECTOR_LEN || rel_pos != 0) {
1224 /* READ & SCAN commands and realign to a sector for WRITE */
1225#ifndef VBOX
1226 if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1227 fdctrl->fifo, 1) < 0) {
1228 FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
1229 fd_sector(cur_drv));
1230 /* Sure, image size is too small... */
1231 memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1232 }
1233#else
1234 cur_drv->Led.Asserted.s.fReading
1235 = cur_drv->Led.Actual.s.fReading = 1;
1236
1237 rc = cur_drv->pDrvBlock->pfnRead (
1238 cur_drv->pDrvBlock,
1239 fd_sector (cur_drv) * 512,
1240 fdctrl->fifo,
1241 1 * 512
1242 );
1243
1244 cur_drv->Led.Actual.s.fReading = 0;
1245
1246 if (RT_FAILURE (rc)) {
1247 AssertMsgFailed (
1248 ("Floppy: error getting sector %d, rc = %Rrc",
1249 fd_sector (cur_drv), rc));
1250 memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1251 }
1252#endif
1253 }
1254 switch (fdctrl->data_dir) {
1255 case FD_DIR_READ:
1256 /* READ commands */
1257#ifdef VBOX
1258 {
1259 uint32_t read;
1260 int rc2 = PDMDevHlpDMAWriteMemory(fdctrl->pDevIns, nchan,
1261 fdctrl->fifo + rel_pos,
1262 fdctrl->data_pos,
1263 len, &read);
1264 dump (fdctrl->fifo + rel_pos, len);
1265 AssertMsgRC (rc2, ("DMAWriteMemory -> %Rrc\n", rc2));
1266 }
1267#else
1268 DMA_write_memory (nchan, fdctrl->fifo + rel_pos,
1269 fdctrl->data_pos, len);
1270#endif
1271/* cpu_physical_memory_write(addr + fdctrl->data_pos, */
1272/* fdctrl->fifo + rel_pos, len); */
1273 break;
1274 case FD_DIR_WRITE:
1275 /* WRITE commands */
1276#ifdef VBOX
1277 {
1278 uint32_t written;
1279 int rc2 = PDMDevHlpDMAReadMemory(fdctrl->pDevIns, nchan,
1280 fdctrl->fifo + rel_pos,
1281 fdctrl->data_pos,
1282 len, &written);
1283 AssertMsgRC (rc2, ("DMAReadMemory -> %Rrc\n", rc2));
1284 }
1285#else
1286 DMA_read_memory (nchan, fdctrl->fifo + rel_pos,
1287 fdctrl->data_pos, len);
1288#endif
1289/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
1290/* fdctrl->fifo + rel_pos, len); */
1291#ifndef VBOX
1292 if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1293 fdctrl->fifo, 1) < 0) {
1294 FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
1295 fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1296 goto transfer_error;
1297 }
1298#else /* VBOX */
1299 cur_drv->Led.Asserted.s.fWriting
1300 = cur_drv->Led.Actual.s.fWriting = 1;
1301
1302 rc = cur_drv->pDrvBlock->pfnWrite (
1303 cur_drv->pDrvBlock,
1304 fd_sector (cur_drv) * 512,
1305 fdctrl->fifo,
1306 1 * 512
1307 );
1308
1309 cur_drv->Led.Actual.s.fWriting = 0;
1310
1311 if (RT_FAILURE (rc)) {
1312 AssertMsgFailed (("Floppy: error writing sector %d. rc=%Rrc",
1313 fd_sector (cur_drv), rc));
1314 fdctrl_stop_transfer (fdctrl, 0x60, 0x00, 0x00);
1315 goto transfer_error;
1316 }
1317#endif
1318 break;
1319 default:
1320 /* SCAN commands */
1321 {
1322 uint8_t tmpbuf[FD_SECTOR_LEN];
1323 int ret;
1324#ifdef VBOX
1325 uint32_t read;
1326 int rc2 = PDMDevHlpDMAReadMemory (fdctrl->pDevIns, nchan, tmpbuf,
1327 fdctrl->data_pos, len, &read);
1328 AssertMsg (RT_SUCCESS (rc2), ("DMAReadMemory -> %Rrc2\n", rc2));
1329#else
1330 DMA_read_memory (nchan, tmpbuf, fdctrl->data_pos, len);
1331#endif
1332/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
1333/* tmpbuf, len); */
1334 ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
1335 if (ret == 0) {
1336 status2 = 0x08;
1337 goto end_transfer;
1338 }
1339 if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) ||
1340 (ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
1341 status2 = 0x00;
1342 goto end_transfer;
1343 }
1344 }
1345 break;
1346 }
1347 fdctrl->data_pos += len;
1348 rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1349 if (rel_pos == 0) {
1350 /* Seek to next sector */
1351 FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
1352 cur_drv->head, cur_drv->track, cur_drv->sect,
1353 fd_sector(cur_drv),
1354 fdctrl->data_pos - len);
1355 /* XXX: cur_drv->sect >= cur_drv->last_sect should be an
1356 error in fact */
1357 if (cur_drv->sect >= cur_drv->last_sect ||
1358 cur_drv->sect == fdctrl->eot) {
1359 cur_drv->sect = 1;
1360 if (FD_MULTI_TRACK(fdctrl->data_state)) {
1361 if (cur_drv->head == 0 &&
1362 (cur_drv->flags & FDISK_DBL_SIDES) != 0) {
1363 cur_drv->head = 1;
1364 } else {
1365 cur_drv->head = 0;
1366 cur_drv->track++;
1367 if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
1368 break;
1369 }
1370 } else {
1371 cur_drv->track++;
1372 break;
1373 }
1374 FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
1375 cur_drv->head, cur_drv->track,
1376 cur_drv->sect, fd_sector(cur_drv));
1377 } else {
1378 cur_drv->sect++;
1379 }
1380 }
1381 }
1382end_transfer:
1383 len = fdctrl->data_pos - start_pos;
1384 FLOPPY_DPRINTF("end transfer %d %d %d\n",
1385 fdctrl->data_pos, len, fdctrl->data_len);
1386 if (fdctrl->data_dir == FD_DIR_SCANE ||
1387 fdctrl->data_dir == FD_DIR_SCANL ||
1388 fdctrl->data_dir == FD_DIR_SCANH)
1389 status2 = 0x08;
1390 if (FD_DID_SEEK(fdctrl->data_state))
1391 status0 |= 0x20;
1392 fdctrl->data_len -= len;
1393 /* if (fdctrl->data_len == 0) */
1394 fdctrl_stop_transfer(fdctrl, status0, status1, status2);
1395transfer_error:
1396
1397 return len;
1398}
1399
1400#if 0
1401{
1402 fdctrl_t *fdctrl;
1403 fdrive_t *cur_drv;
1404 int len, start_pos, rel_pos;
1405 uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
1406
1407 fdctrl = opaque;
1408 if (!(fdctrl->state & FD_CTRL_BUSY)) {
1409 FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
1410 return 0;
1411 }
1412 cur_drv = get_cur_drv(fdctrl);
1413 if (fdctrl->data_dir == FD_DIR_SCANE || fdctrl->data_dir == FD_DIR_SCANL ||
1414 fdctrl->data_dir == FD_DIR_SCANH)
1415 status2 = 0x04;
1416 if (size > fdctrl->data_len)
1417 size = fdctrl->data_len;
1418#ifndef VBOX
1419 if (cur_drv->bs == NULL) {
1420#else
1421 if (cur_drv->pDrvBase == NULL) {
1422#endif
1423 if (fdctrl->data_dir == FD_DIR_WRITE)
1424 fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1425 else
1426 fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1427 len = 0;
1428 goto transfer_error;
1429 }
1430 rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1431 for (start_pos = fdctrl->data_pos; fdctrl->data_pos < size;) {
1432 len = size - fdctrl->data_pos;
1433 if (len + rel_pos > FD_SECTOR_LEN)
1434 len = FD_SECTOR_LEN - rel_pos;
1435 FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x %02x "
1436 "(%d-0x%08x 0x%08x)\n", len, size, fdctrl->data_pos,
1437 fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
1438 cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
1439 fd_sector(cur_drv) * 512, addr);
1440 if (fdctrl->data_dir != FD_DIR_WRITE ||
1441 len < FD_SECTOR_LEN || rel_pos != 0) {
1442 /* READ & SCAN commands and realign to a sector for WRITE */
1443#ifndef VBOX
1444 if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1445 fdctrl->fifo, 1) < 0) {
1446 FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
1447 fd_sector(cur_drv));
1448 /* Sure, image size is too small... */
1449 memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1450 }
1451#else
1452 int rc;
1453
1454 cur_drv->Led.Asserted.s.fReading
1455 = cur_drv->Led.Actual.s.fReading = 1;
1456
1457 rc = cur_drv->pDrvBlock->pfnRead (
1458 cur_drv->pDrvBlock,
1459 fd_sector (cur_drv) * 512,
1460 fdctrl->fifo,
1461 1 * 512
1462 );
1463
1464 cur_drv->Led.Actual.s.fReading = 0;
1465
1466 if (RT_FAILURE (rc)) {
1467 AssertMsgFailed (
1468 ("Floppy: error getting sector %d. rc=%Rrc\n",
1469 fd_sector(cur_drv), rc));
1470 /* Sure, image size is too small... */
1471 memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1472 }
1473 /* *p_fd_activity = 1; */
1474#endif
1475 }
1476 switch (fdctrl->data_dir) {
1477 case FD_DIR_READ:
1478 /* READ commands */
1479#ifdef VBOX
1480 PDMDevHlpPhysWrite (fdctrl->pDevIns, addr + fdctrl->data_pos,
1481 fdctrl->fifo + rel_pos, len);
1482#else
1483 cpu_physical_memory_write(addr + fdctrl->data_pos,
1484 fdctrl->fifo + rel_pos, len);
1485#endif
1486 break;
1487 case FD_DIR_WRITE:
1488 /* WRITE commands */
1489#ifdef VBOX
1490 {
1491 int rc;
1492
1493 PDMDevHlpPhysRead (fdctrl->pDevIns, addr + fdctrl->data_pos,
1494 fdctrl->fifo + rel_pos, len);
1495
1496 cur_drv->Led.Asserted.s.fWriting
1497 = cur_drv->Led.Actual.s.fWriting = 1;
1498
1499 rc = cur_drv->pDrvBlock->pfnWrite (
1500 cur_drv->pDrvBlock,
1501 fd_sector (cur_drv) * 512,
1502 fdctrl->fifo,
1503 1 * 512
1504 );
1505
1506 cur_drv->Led.Actual.s.fWriting = 0;
1507
1508 if (RT_FAILURE (rc)) {
1509 AssertMsgFailed (
1510 ("Floppy: error writting sector %d. rc=%Rrc\n",
1511 fd_sector(cur_drv), rc));
1512 fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1513 goto transfer_error;
1514 }
1515 }
1516 /* *p_fd_activity = 2; */
1517#else /* !VBOX */
1518 cpu_physical_memory_read(addr + fdctrl->data_pos,
1519 fdctrl->fifo + rel_pos, len);
1520 if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1521 fdctrl->fifo, 1) < 0) {
1522 FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
1523 fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1524 goto transfer_error;
1525 }
1526#endif
1527 break;
1528 default:
1529 /* SCAN commands */
1530 {
1531 uint8_t tmpbuf[FD_SECTOR_LEN];
1532 int ret;
1533#ifdef VBOX
1534 PDMDevHlpPhysRead (fdctrl->pDevIns, addr + fdctrl->data_pos,
1535 tmpbuf, len);
1536#else
1537 cpu_physical_memory_read(addr + fdctrl->data_pos,
1538 tmpbuf, len);
1539#endif
1540 ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
1541 if (ret == 0) {
1542 status2 = 0x08;
1543 goto end_transfer;
1544 }
1545 if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) ||
1546 (ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
1547 status2 = 0x00;
1548 goto end_transfer;
1549 }
1550 }
1551 break;
1552 }
1553 fdctrl->data_pos += len;
1554 rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1555 if (rel_pos == 0) {
1556 /* Seek to next sector */
1557 FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
1558 cur_drv->head, cur_drv->track, cur_drv->sect,
1559 fd_sector(cur_drv),
1560 fdctrl->data_pos - size);
1561 /* XXX: cur_drv->sect >= cur_drv->last_sect should be an
1562 error in fact */
1563 if (cur_drv->sect >= cur_drv->last_sect ||
1564 cur_drv->sect == fdctrl->eot) {
1565 cur_drv->sect = 1;
1566 if (FD_MULTI_TRACK(fdctrl->data_state)) {
1567 if (cur_drv->head == 0 &&
1568 (cur_drv->flags & FDISK_DBL_SIDES) != 0) {
1569 cur_drv->head = 1;
1570 } else {
1571 cur_drv->head = 0;
1572 cur_drv->track++;
1573 if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
1574 break;
1575 }
1576 } else {
1577 cur_drv->track++;
1578 break;
1579 }
1580 FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
1581 cur_drv->head, cur_drv->track,
1582 cur_drv->sect, fd_sector(cur_drv));
1583 } else {
1584 cur_drv->sect++;
1585 }
1586 }
1587 }
1588end_transfer:
1589 len = fdctrl->data_pos - start_pos;
1590 FLOPPY_DPRINTF("end transfer %d %d %d\n",
1591 fdctrl->data_pos, len, fdctrl->data_len);
1592 if (fdctrl->data_dir == FD_DIR_SCANE ||
1593 fdctrl->data_dir == FD_DIR_SCANL ||
1594 fdctrl->data_dir == FD_DIR_SCANH)
1595 status2 = 0x08;
1596 if (FD_DID_SEEK(fdctrl->data_state))
1597 status0 |= 0x20;
1598 fdctrl->data_len -= len;
1599 /* // if (fdctrl->data_len == 0) */
1600 fdctrl_stop_transfer(fdctrl, status0, status1, status2);
1601transfer_error:
1602
1603 return len;
1604}
1605#endif
1606
1607/* Data register : 0x05 */
1608static uint32_t fdctrl_read_data (fdctrl_t *fdctrl)
1609{
1610 fdrive_t *cur_drv;
1611 uint32_t retval = 0;
1612 unsigned pos, len;
1613#ifdef VBOX
1614 int rc;
1615#endif
1616
1617 cur_drv = get_cur_drv(fdctrl);
1618 fdctrl->state &= ~FD_CTRL_SLEEP;
1619 if (FD_STATE(fdctrl->data_state) == FD_STATE_CMD) {
1620 FLOPPY_ERROR("can't read data in CMD state\n");
1621 return 0;
1622 }
1623 pos = fdctrl->data_pos;
1624 if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1625 pos %= FD_SECTOR_LEN;
1626 if (pos == 0) {
1627 len = fdctrl->data_len - fdctrl->data_pos;
1628 if (len > FD_SECTOR_LEN)
1629 len = FD_SECTOR_LEN;
1630#ifdef VBOX
1631 cur_drv->Led.Asserted.s.fReading
1632 = cur_drv->Led.Actual.s.fReading = 1;
1633
1634 Assert(len <= sizeof(fdctrl->fifo));
1635 rc = cur_drv->pDrvBlock->pfnRead (
1636 cur_drv->pDrvBlock,
1637 fd_sector (cur_drv) * 512,
1638 fdctrl->fifo,
1639 len
1640 );
1641
1642 cur_drv->Led.Actual.s.fReading = 0;
1643
1644 if (RT_FAILURE (rc)) {
1645 AssertMsgFailed (
1646 ("Floppy: Failure to read sector %d. rc=%Rrc",
1647 fd_sector (cur_drv), rc));
1648 }
1649#else
1650 bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1651 fdctrl->fifo, len);
1652#endif
1653 }
1654 }
1655 retval = fdctrl->fifo[pos];
1656 if (++fdctrl->data_pos == fdctrl->data_len) {
1657 fdctrl->data_pos = 0;
1658 /* Switch from transfer mode to status mode
1659 * then from status mode to command mode
1660 */
1661 if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1662 fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1663 } else {
1664 fdctrl_reset_fifo(fdctrl);
1665 fdctrl_reset_irq(fdctrl);
1666 }
1667 }
1668 FLOPPY_DPRINTF("data register: 0x%02x\n", retval);
1669
1670 return retval;
1671}
1672
1673static void fdctrl_format_sector (fdctrl_t *fdctrl)
1674{
1675 fdrive_t *cur_drv;
1676 uint8_t kh, kt, ks;
1677 int did_seek;
1678#ifdef VBOX
1679 int ok = 0, rc;
1680#endif
1681
1682 fdctrl->cur_drv = fdctrl->fifo[1] & 1;
1683 cur_drv = get_cur_drv(fdctrl);
1684 kt = fdctrl->fifo[6];
1685 kh = fdctrl->fifo[7];
1686 ks = fdctrl->fifo[8];
1687 FLOPPY_DPRINTF("format sector at %d %d %02x %02x (%d)\n",
1688 fdctrl->cur_drv, kh, kt, ks,
1689 _fd_sector(kh, kt, ks, cur_drv->last_sect));
1690 did_seek = 0;
1691 switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
1692 case 2:
1693 /* sect too big */
1694 fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1695 fdctrl->fifo[3] = kt;
1696 fdctrl->fifo[4] = kh;
1697 fdctrl->fifo[5] = ks;
1698 return;
1699 case 3:
1700 /* track too big */
1701 fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
1702 fdctrl->fifo[3] = kt;
1703 fdctrl->fifo[4] = kh;
1704 fdctrl->fifo[5] = ks;
1705 return;
1706 case 4:
1707 /* No seek enabled */
1708 fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1709 fdctrl->fifo[3] = kt;
1710 fdctrl->fifo[4] = kh;
1711 fdctrl->fifo[5] = ks;
1712 return;
1713 case 1:
1714 did_seek = 1;
1715 fdctrl->data_state |= FD_STATE_SEEK;
1716 break;
1717 default:
1718 break;
1719 }
1720 memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1721#ifdef VBOX
1722 /* *p_fd_activity = 2; */
1723 if (cur_drv->pDrvBlock) {
1724 cur_drv->Led.Asserted.s.fWriting = cur_drv->Led.Actual.s.fWriting = 1;
1725
1726 rc = cur_drv->pDrvBlock->pfnWrite (
1727 cur_drv->pDrvBlock,
1728 fd_sector (cur_drv) * 512,
1729 fdctrl->fifo,
1730 1 * 512
1731 );
1732
1733 cur_drv->Led.Actual.s.fWriting = 0;
1734
1735 if (RT_FAILURE (rc)) {
1736 AssertMsgFailed (("Floppy: error formating sector %d. rc=%Rrc\n",
1737 fd_sector (cur_drv), rc));
1738 fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1739 }
1740 else {
1741 ok = 1;
1742 }
1743 }
1744 if (ok) {
1745#else
1746 if (cur_drv->bs == NULL ||
1747 bdrv_write(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
1748 FLOPPY_ERROR("formating sector %d\n", fd_sector(cur_drv));
1749 fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1750 } else {
1751#endif
1752 if (cur_drv->sect == cur_drv->last_sect) {
1753 fdctrl->data_state &= ~FD_STATE_FORMAT;
1754 /* Last sector done */
1755 if (FD_DID_SEEK(fdctrl->data_state))
1756 fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1757 else
1758 fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
1759 } else {
1760 /* More to do */
1761 fdctrl->data_pos = 0;
1762 fdctrl->data_len = 4;
1763 }
1764 }
1765}
1766
1767static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
1768{
1769 fdrive_t *cur_drv;
1770
1771 cur_drv = get_cur_drv(fdctrl);
1772 /* Reset mode */
1773 if (fdctrl->state & FD_CTRL_RESET) {
1774 FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
1775 return;
1776 }
1777 fdctrl->state &= ~FD_CTRL_SLEEP;
1778 if (FD_STATE(fdctrl->data_state) == FD_STATE_STATUS) {
1779 FLOPPY_ERROR("can't write data in status mode\n");
1780 return;
1781 }
1782 /* Is it write command time ? */
1783 if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1784 /* FIFO data write */
1785 fdctrl->fifo[fdctrl->data_pos++] = value;
1786 if (fdctrl->data_pos % FD_SECTOR_LEN == (FD_SECTOR_LEN - 1) ||
1787 fdctrl->data_pos == fdctrl->data_len) {
1788#ifdef VBOX
1789 int rc;
1790 /* *p_fd_activity = 2; */
1791 cur_drv->Led.Asserted.s.fWriting
1792 = cur_drv->Led.Actual.s.fWriting = 1;
1793
1794 rc = cur_drv->pDrvBlock->pfnWrite (
1795 cur_drv->pDrvBlock,
1796 fd_sector (cur_drv) * 512,
1797 fdctrl->fifo,
1798 FD_SECTOR_LEN
1799 );
1800
1801 cur_drv->Led.Actual.s.fWriting = 0;
1802
1803 if (RT_FAILURE (rc)) {
1804 AssertMsgFailed (
1805 ("Floppy: failed to write sector %d. rc=%Rrc\n",
1806 fd_sector (cur_drv), rc));
1807 }
1808#else
1809 bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1810 fdctrl->fifo, FD_SECTOR_LEN);
1811#endif
1812 }
1813 /* Switch from transfer mode to status mode
1814 * then from status mode to command mode
1815 */
1816 if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA)
1817 fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1818 return;
1819 }
1820 if (fdctrl->data_pos == 0) {
1821 /* Command */
1822 switch (value & 0x5F) {
1823 case 0x46:
1824 /* READ variants */
1825 FLOPPY_DPRINTF("READ command\n");
1826 /* 8 parameters cmd */
1827 fdctrl->data_len = 9;
1828 goto enqueue;
1829 case 0x4C:
1830 /* READ_DELETED variants */
1831 FLOPPY_DPRINTF("READ_DELETED command\n");
1832 /* 8 parameters cmd */
1833 fdctrl->data_len = 9;
1834 goto enqueue;
1835 case 0x50:
1836 /* SCAN_EQUAL variants */
1837 FLOPPY_DPRINTF("SCAN_EQUAL command\n");
1838 /* 8 parameters cmd */
1839 fdctrl->data_len = 9;
1840 goto enqueue;
1841 case 0x56:
1842 /* VERIFY variants */
1843 FLOPPY_DPRINTF("VERIFY command\n");
1844 /* 8 parameters cmd */
1845 fdctrl->data_len = 9;
1846 goto enqueue;
1847 case 0x59:
1848 /* SCAN_LOW_OR_EQUAL variants */
1849 FLOPPY_DPRINTF("SCAN_LOW_OR_EQUAL command\n");
1850 /* 8 parameters cmd */
1851 fdctrl->data_len = 9;
1852 goto enqueue;
1853 case 0x5D:
1854 /* SCAN_HIGH_OR_EQUAL variants */
1855 FLOPPY_DPRINTF("SCAN_HIGH_OR_EQUAL command\n");
1856 /* 8 parameters cmd */
1857 fdctrl->data_len = 9;
1858 goto enqueue;
1859 default:
1860 break;
1861 }
1862 switch (value & 0x7F) {
1863 case 0x45:
1864 /* WRITE variants */
1865 FLOPPY_DPRINTF("WRITE command\n");
1866 /* 8 parameters cmd */
1867 fdctrl->data_len = 9;
1868 goto enqueue;
1869 case 0x49:
1870 /* WRITE_DELETED variants */
1871 FLOPPY_DPRINTF("WRITE_DELETED command\n");
1872 /* 8 parameters cmd */
1873 fdctrl->data_len = 9;
1874 goto enqueue;
1875 default:
1876 break;
1877 }
1878 switch (value) {
1879 case 0x03:
1880 /* SPECIFY */
1881 FLOPPY_DPRINTF("SPECIFY command\n");
1882 /* 1 parameter cmd */
1883 fdctrl->data_len = 3;
1884 goto enqueue;
1885 case 0x04:
1886 /* SENSE_DRIVE_STATUS */
1887 FLOPPY_DPRINTF("SENSE_DRIVE_STATUS command\n");
1888 /* 1 parameter cmd */
1889 fdctrl->data_len = 2;
1890 goto enqueue;
1891 case 0x07:
1892 /* RECALIBRATE */
1893 FLOPPY_DPRINTF("RECALIBRATE command\n");
1894 /* 1 parameter cmd */
1895 fdctrl->data_len = 2;
1896 goto enqueue;
1897 case 0x08:
1898 /* SENSE_INTERRUPT_STATUS */
1899 FLOPPY_DPRINTF("SENSE_INTERRUPT_STATUS command (%02x)\n",
1900 fdctrl->int_status);
1901 /* No parameters cmd: returns status if no interrupt */
1902#if 0
1903 fdctrl->fifo[0] =
1904 fdctrl->int_status | (cur_drv->head << 2) | fdctrl->cur_drv;
1905#else
1906 /* XXX: int_status handling is broken for read/write
1907 commands, so we do this hack. It should be suppressed
1908 ASAP */
1909 fdctrl->fifo[0] =
1910 0x20 | (cur_drv->head << 2) | fdctrl->cur_drv;
1911#endif
1912 fdctrl->fifo[1] = cur_drv->track;
1913 fdctrl_set_fifo(fdctrl, 2, 0);
1914 fdctrl_reset_irq(fdctrl);
1915 fdctrl->int_status = 0xC0;
1916 return;
1917 case 0x0E:
1918 /* DUMPREG */
1919 FLOPPY_DPRINTF("DUMPREG command\n");
1920 /* Drives position */
1921 fdctrl->fifo[0] = drv0(fdctrl)->track;
1922 fdctrl->fifo[1] = drv1(fdctrl)->track;
1923 fdctrl->fifo[2] = 0;
1924 fdctrl->fifo[3] = 0;
1925 /* timers */
1926 fdctrl->fifo[4] = fdctrl->timer0;
1927 fdctrl->fifo[5] = (fdctrl->timer1 << 1) | fdctrl->dma_en;
1928 fdctrl->fifo[6] = cur_drv->last_sect;
1929 fdctrl->fifo[7] = (fdctrl->lock << 7) |
1930 (cur_drv->perpendicular << 2);
1931 fdctrl->fifo[8] = fdctrl->config;
1932 fdctrl->fifo[9] = fdctrl->precomp_trk;
1933 fdctrl_set_fifo(fdctrl, 10, 0);
1934 return;
1935 case 0x0F:
1936 /* SEEK */
1937 FLOPPY_DPRINTF("SEEK command\n");
1938 /* 2 parameters cmd */
1939 fdctrl->data_len = 3;
1940 goto enqueue;
1941 case 0x10:
1942 /* VERSION */
1943 FLOPPY_DPRINTF("VERSION command\n");
1944 /* No parameters cmd */
1945 /* Controller's version */
1946 fdctrl->fifo[0] = fdctrl->version;
1947 fdctrl_set_fifo(fdctrl, 1, 1);
1948 return;
1949 case 0x12:
1950 /* PERPENDICULAR_MODE */
1951 FLOPPY_DPRINTF("PERPENDICULAR_MODE command\n");
1952 /* 1 parameter cmd */
1953 fdctrl->data_len = 2;
1954 goto enqueue;
1955 case 0x13:
1956 /* CONFIGURE */
1957 FLOPPY_DPRINTF("CONFIGURE command\n");
1958 /* 3 parameters cmd */
1959 fdctrl->data_len = 4;
1960 goto enqueue;
1961 case 0x14:
1962 /* UNLOCK */
1963 FLOPPY_DPRINTF("UNLOCK command\n");
1964 /* No parameters cmd */
1965 fdctrl->lock = 0;
1966 fdctrl->fifo[0] = 0;
1967 fdctrl_set_fifo(fdctrl, 1, 0);
1968 return;
1969 case 0x17:
1970 /* POWERDOWN_MODE */
1971 FLOPPY_DPRINTF("POWERDOWN_MODE command\n");
1972 /* 2 parameters cmd */
1973 fdctrl->data_len = 3;
1974 goto enqueue;
1975 case 0x18:
1976 /* PART_ID */
1977 FLOPPY_DPRINTF("PART_ID command\n");
1978 /* No parameters cmd */
1979 fdctrl->fifo[0] = 0x41; /* Stepping 1 */
1980 fdctrl_set_fifo(fdctrl, 1, 0);
1981 return;
1982 case 0x2C:
1983 /* SAVE */
1984 FLOPPY_DPRINTF("SAVE command\n");
1985 /* No parameters cmd */
1986 fdctrl->fifo[0] = 0;
1987 fdctrl->fifo[1] = 0;
1988 /* Drives position */
1989 fdctrl->fifo[2] = drv0(fdctrl)->track;
1990 fdctrl->fifo[3] = drv1(fdctrl)->track;
1991 fdctrl->fifo[4] = 0;
1992 fdctrl->fifo[5] = 0;
1993 /* timers */
1994 fdctrl->fifo[6] = fdctrl->timer0;
1995 fdctrl->fifo[7] = fdctrl->timer1;
1996 fdctrl->fifo[8] = cur_drv->last_sect;
1997 fdctrl->fifo[9] = (fdctrl->lock << 7) |
1998 (cur_drv->perpendicular << 2);
1999 fdctrl->fifo[10] = fdctrl->config;
2000 fdctrl->fifo[11] = fdctrl->precomp_trk;
2001 fdctrl->fifo[12] = fdctrl->pwrd;
2002 fdctrl->fifo[13] = 0;
2003 fdctrl->fifo[14] = 0;
2004 fdctrl_set_fifo(fdctrl, 15, 1);
2005 return;
2006 case 0x33:
2007 /* OPTION */
2008 FLOPPY_DPRINTF("OPTION command\n");
2009 /* 1 parameter cmd */
2010 fdctrl->data_len = 2;
2011 goto enqueue;
2012 case 0x42:
2013 /* READ_TRACK */
2014 FLOPPY_DPRINTF("READ_TRACK command\n");
2015 /* 8 parameters cmd */
2016 fdctrl->data_len = 9;
2017 goto enqueue;
2018 case 0x4A:
2019 /* READ_ID */
2020 FLOPPY_DPRINTF("READ_ID command\n");
2021 /* 1 parameter cmd */
2022 fdctrl->data_len = 2;
2023 goto enqueue;
2024 case 0x4C:
2025 /* RESTORE */
2026 FLOPPY_DPRINTF("RESTORE command\n");
2027 /* 17 parameters cmd */
2028 fdctrl->data_len = 18;
2029 goto enqueue;
2030 case 0x4D:
2031 /* FORMAT_TRACK */
2032 FLOPPY_DPRINTF("FORMAT_TRACK command\n");
2033 /* 5 parameters cmd */
2034 fdctrl->data_len = 6;
2035 goto enqueue;
2036 case 0x8E:
2037 /* DRIVE_SPECIFICATION_COMMAND */
2038 FLOPPY_DPRINTF("DRIVE_SPECIFICATION_COMMAND command\n");
2039 /* 5 parameters cmd */
2040 fdctrl->data_len = 6;
2041 goto enqueue;
2042 case 0x8F:
2043 /* RELATIVE_SEEK_OUT */
2044 FLOPPY_DPRINTF("RELATIVE_SEEK_OUT command\n");
2045 /* 2 parameters cmd */
2046 fdctrl->data_len = 3;
2047 goto enqueue;
2048 case 0x94:
2049 /* LOCK */
2050 FLOPPY_DPRINTF("LOCK command\n");
2051 /* No parameters cmd */
2052 fdctrl->lock = 1;
2053 fdctrl->fifo[0] = 0x10;
2054 fdctrl_set_fifo(fdctrl, 1, 1);
2055 return;
2056 case 0xCD:
2057 /* FORMAT_AND_WRITE */
2058 FLOPPY_DPRINTF("FORMAT_AND_WRITE command\n");
2059 /* 10 parameters cmd */
2060 fdctrl->data_len = 11;
2061 goto enqueue;
2062 case 0xCF:
2063 /* RELATIVE_SEEK_IN */
2064 FLOPPY_DPRINTF("RELATIVE_SEEK_IN command\n");
2065 /* 2 parameters cmd */
2066 fdctrl->data_len = 3;
2067 goto enqueue;
2068 default:
2069 /* Unknown command */
2070 FLOPPY_ERROR("unknown command: 0x%02x\n", value);
2071 fdctrl_unimplemented(fdctrl);
2072 return;
2073 }
2074 }
2075enqueue:
2076 FLOPPY_DPRINTF("%s: %02x\n", __func__, value);
2077 fdctrl->fifo[fdctrl->data_pos] = value;
2078 if (++fdctrl->data_pos == fdctrl->data_len) {
2079 /* We now have all parameters
2080 * and will be able to treat the command
2081 */
2082 if (fdctrl->data_state & FD_STATE_FORMAT) {
2083 fdctrl_format_sector(fdctrl);
2084 return;
2085 }
2086 switch (fdctrl->fifo[0] & 0x1F) {
2087 case 0x06:
2088 {
2089 /* READ variants */
2090 FLOPPY_DPRINTF("treat READ command\n");
2091 fdctrl_start_transfer(fdctrl, FD_DIR_READ);
2092 return;
2093 }
2094 case 0x0C:
2095 /* READ_DELETED variants */
2096/* // FLOPPY_DPRINTF("treat READ_DELETED command\n"); */
2097 FLOPPY_ERROR("treat READ_DELETED command\n");
2098 fdctrl_start_transfer_del(fdctrl, FD_DIR_READ);
2099 return;
2100 case 0x16:
2101 /* VERIFY variants */
2102/* // FLOPPY_DPRINTF("treat VERIFY command\n"); */
2103 FLOPPY_ERROR("treat VERIFY command\n");
2104 fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
2105 return;
2106 case 0x10:
2107 /* SCAN_EQUAL variants */
2108/* // FLOPPY_DPRINTF("treat SCAN_EQUAL command\n"); */
2109 FLOPPY_ERROR("treat SCAN_EQUAL command\n");
2110 fdctrl_start_transfer(fdctrl, FD_DIR_SCANE);
2111 return;
2112 case 0x19:
2113 /* SCAN_LOW_OR_EQUAL variants */
2114/* // FLOPPY_DPRINTF("treat SCAN_LOW_OR_EQUAL command\n"); */
2115 FLOPPY_ERROR("treat SCAN_LOW_OR_EQUAL command\n");
2116 fdctrl_start_transfer(fdctrl, FD_DIR_SCANL);
2117 return;
2118 case 0x1D:
2119 /* SCAN_HIGH_OR_EQUAL variants */
2120/* // FLOPPY_DPRINTF("treat SCAN_HIGH_OR_EQUAL command\n"); */
2121 FLOPPY_ERROR("treat SCAN_HIGH_OR_EQUAL command\n");
2122 fdctrl_start_transfer(fdctrl, FD_DIR_SCANH);
2123 return;
2124 default:
2125 break;
2126 }
2127 switch (fdctrl->fifo[0] & 0x3F) {
2128 case 0x05:
2129 /* WRITE variants */
2130 FLOPPY_DPRINTF("treat WRITE command (%02x)\n", fdctrl->fifo[0]);
2131 fdctrl_start_transfer(fdctrl, FD_DIR_WRITE);
2132 return;
2133 case 0x09:
2134 /* WRITE_DELETED variants */
2135/* // FLOPPY_DPRINTF("treat WRITE_DELETED command\n"); */
2136 FLOPPY_ERROR("treat WRITE_DELETED command\n");
2137 fdctrl_start_transfer_del(fdctrl, FD_DIR_WRITE);
2138 return;
2139 default:
2140 break;
2141 }
2142 switch (fdctrl->fifo[0]) {
2143 case 0x03:
2144 /* SPECIFY */
2145 FLOPPY_DPRINTF("treat SPECIFY command\n");
2146 fdctrl->timer0 = (fdctrl->fifo[1] >> 4) & 0xF;
2147 fdctrl->timer1 = fdctrl->fifo[2] >> 1;
2148 fdctrl->dma_en = 1 - (fdctrl->fifo[2] & 1) ;
2149 /* No result back */
2150 fdctrl_reset_fifo(fdctrl);
2151 break;
2152 case 0x04:
2153 /* SENSE_DRIVE_STATUS */
2154 FLOPPY_DPRINTF("treat SENSE_DRIVE_STATUS command\n");
2155 fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2156 cur_drv = get_cur_drv(fdctrl);
2157 cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
2158 /* 1 Byte status back */
2159 fdctrl->fifo[0] = (cur_drv->ro << 6) |
2160 (cur_drv->track == 0 ? 0x10 : 0x00) |
2161 (cur_drv->head << 2) |
2162 fdctrl->cur_drv |
2163 0x28;
2164 fdctrl_set_fifo(fdctrl, 1, 0);
2165 break;
2166 case 0x07:
2167 /* RECALIBRATE */
2168 FLOPPY_DPRINTF("treat RECALIBRATE command\n");
2169 fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2170 cur_drv = get_cur_drv(fdctrl);
2171 fd_recalibrate(cur_drv);
2172 fdctrl_reset_fifo(fdctrl);
2173 /* Raise Interrupt */
2174 fdctrl_raise_irq(fdctrl, 0x20);
2175 break;
2176 case 0x0F:
2177 /* SEEK */
2178 FLOPPY_DPRINTF("treat SEEK command\n");
2179 fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2180 cur_drv = get_cur_drv(fdctrl);
2181 fd_start(cur_drv);
2182 if (fdctrl->fifo[2] <= cur_drv->track)
2183 cur_drv->dir = 1;
2184 else
2185 cur_drv->dir = 0;
2186 fdctrl_reset_fifo(fdctrl);
2187#ifndef VBOX
2188 if (fdctrl->fifo[2] > cur_drv->max_track) {
2189#else
2190 if ( fdctrl->fifo[2] > cur_drv->max_track
2191 && cur_drv->fMediaPresent) {
2192#endif
2193 fdctrl_raise_irq(fdctrl, 0x60);
2194 } else {
2195 cur_drv->track = fdctrl->fifo[2];
2196 /* Raise Interrupt */
2197 fdctrl_raise_irq(fdctrl, 0x20);
2198 }
2199 break;
2200 case 0x12:
2201 /* PERPENDICULAR_MODE */
2202 FLOPPY_DPRINTF("treat PERPENDICULAR_MODE command\n");
2203 if (fdctrl->fifo[1] & 0x80)
2204 cur_drv->perpendicular = fdctrl->fifo[1] & 0x7;
2205 /* No result back */
2206 fdctrl_reset_fifo(fdctrl);
2207 break;
2208 case 0x13:
2209 /* CONFIGURE */
2210 FLOPPY_DPRINTF("treat CONFIGURE command\n");
2211 fdctrl->config = fdctrl->fifo[2];
2212 fdctrl->precomp_trk = fdctrl->fifo[3];
2213 /* No result back */
2214 fdctrl_reset_fifo(fdctrl);
2215 break;
2216 case 0x17:
2217 /* POWERDOWN_MODE */
2218 FLOPPY_DPRINTF("treat POWERDOWN_MODE command\n");
2219 fdctrl->pwrd = fdctrl->fifo[1];
2220 fdctrl->fifo[0] = fdctrl->fifo[1];
2221 fdctrl_set_fifo(fdctrl, 1, 1);
2222 break;
2223 case 0x33:
2224 /* OPTION */
2225 FLOPPY_DPRINTF("treat OPTION command\n");
2226 /* No result back */
2227 fdctrl_reset_fifo(fdctrl);
2228 break;
2229 case 0x42:
2230 /* READ_TRACK */
2231/* // FLOPPY_DPRINTF("treat READ_TRACK command\n"); */
2232 FLOPPY_ERROR("treat READ_TRACK command\n");
2233 fdctrl_start_transfer(fdctrl, FD_DIR_READ);
2234 break;
2235 case 0x4A:
2236 /* READ_ID */
2237 FLOPPY_DPRINTF("treat READ_ID command\n");
2238 /* XXX: should set main status register to busy */
2239 cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
2240#ifdef VBOX
2241 TMTimerSetMillies(fdctrl->result_timer, 1000 / 50);
2242#else
2243 qemu_mod_timer(fdctrl->result_timer,
2244 qemu_get_clock(vm_clock) + (ticks_per_sec / 50));
2245#endif
2246 break;
2247 case 0x4C:
2248 /* RESTORE */
2249 FLOPPY_DPRINTF("treat RESTORE command\n");
2250 /* Drives position */
2251 drv0(fdctrl)->track = fdctrl->fifo[3];
2252 drv1(fdctrl)->track = fdctrl->fifo[4];
2253 /* timers */
2254 fdctrl->timer0 = fdctrl->fifo[7];
2255 fdctrl->timer1 = fdctrl->fifo[8];
2256 cur_drv->last_sect = fdctrl->fifo[9];
2257 fdctrl->lock = fdctrl->fifo[10] >> 7;
2258 cur_drv->perpendicular = (fdctrl->fifo[10] >> 2) & 0xF;
2259 fdctrl->config = fdctrl->fifo[11];
2260 fdctrl->precomp_trk = fdctrl->fifo[12];
2261 fdctrl->pwrd = fdctrl->fifo[13];
2262 fdctrl_reset_fifo(fdctrl);
2263 break;
2264 case 0x4D:
2265 /* FORMAT_TRACK */
2266 FLOPPY_DPRINTF("treat FORMAT_TRACK command\n");
2267 fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2268 cur_drv = get_cur_drv(fdctrl);
2269 fdctrl->data_state |= FD_STATE_FORMAT;
2270 if (fdctrl->fifo[0] & 0x80)
2271 fdctrl->data_state |= FD_STATE_MULTI;
2272 else
2273 fdctrl->data_state &= ~FD_STATE_MULTI;
2274 fdctrl->data_state &= ~FD_STATE_SEEK;
2275 cur_drv->bps =
2276 fdctrl->fifo[2] > 7 ? 16384 : 128 << fdctrl->fifo[2];
2277#if 0
2278 cur_drv->last_sect =
2279 cur_drv->flags & FDISK_DBL_SIDES ? fdctrl->fifo[3] :
2280 fdctrl->fifo[3] / 2;
2281#else
2282 cur_drv->last_sect = fdctrl->fifo[3];
2283#endif
2284 /* Bochs BIOS is buggy and don't send format informations
2285 * for each sector. So, pretend all's done right now...
2286 */
2287 fdctrl->data_state &= ~FD_STATE_FORMAT;
2288 fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
2289 break;
2290 case 0x8E:
2291 /* DRIVE_SPECIFICATION_COMMAND */
2292 FLOPPY_DPRINTF("treat DRIVE_SPECIFICATION_COMMAND command\n");
2293 if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x80) {
2294 /* Command parameters done */
2295 if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x40) {
2296 fdctrl->fifo[0] = fdctrl->fifo[1];
2297 fdctrl->fifo[2] = 0;
2298 fdctrl->fifo[3] = 0;
2299 fdctrl_set_fifo(fdctrl, 4, 1);
2300 } else {
2301 fdctrl_reset_fifo(fdctrl);
2302 }
2303 } else if (fdctrl->data_len > 7) {
2304 /* ERROR */
2305 fdctrl->fifo[0] = 0x80 |
2306 (cur_drv->head << 2) | fdctrl->cur_drv;
2307 fdctrl_set_fifo(fdctrl, 1, 1);
2308 }
2309 break;
2310 case 0x8F:
2311 /* RELATIVE_SEEK_OUT */
2312 FLOPPY_DPRINTF("treat RELATIVE_SEEK_OUT command\n");
2313 fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2314 cur_drv = get_cur_drv(fdctrl);
2315 fd_start(cur_drv);
2316 cur_drv->dir = 0;
2317 if (fdctrl->fifo[2] + cur_drv->track >= cur_drv->max_track) {
2318 cur_drv->track = cur_drv->max_track - 1;
2319 } else {
2320 cur_drv->track += fdctrl->fifo[2];
2321 }
2322 fdctrl_reset_fifo(fdctrl);
2323 fdctrl_raise_irq(fdctrl, 0x20);
2324 break;
2325 case 0xCD:
2326 /* FORMAT_AND_WRITE */
2327/* // FLOPPY_DPRINTF("treat FORMAT_AND_WRITE command\n"); */
2328 FLOPPY_ERROR("treat FORMAT_AND_WRITE command\n");
2329 fdctrl_unimplemented(fdctrl);
2330 break;
2331 case 0xCF:
2332 /* RELATIVE_SEEK_IN */
2333 FLOPPY_DPRINTF("treat RELATIVE_SEEK_IN command\n");
2334 fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2335 cur_drv = get_cur_drv(fdctrl);
2336 fd_start(cur_drv);
2337 cur_drv->dir = 1;
2338 if (fdctrl->fifo[2] > cur_drv->track) {
2339 cur_drv->track = 0;
2340 } else {
2341 cur_drv->track -= fdctrl->fifo[2];
2342 }
2343 fdctrl_reset_fifo(fdctrl);
2344 /* Raise Interrupt */
2345 fdctrl_raise_irq(fdctrl, 0x20);
2346 break;
2347 }
2348 }
2349}
2350
2351static void fdctrl_result_timer(void *opaque)
2352{
2353 fdctrl_t *fdctrl = opaque;
2354 fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
2355}
2356
2357
2358#ifdef VBOX
2359static DECLCALLBACK(void) fdc_timer (PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
2360{
2361 fdctrl_t *fdctrl = (fdctrl_t *)pvUser;
2362 fdctrl_result_timer (fdctrl);
2363}
2364
2365static DECLCALLBACK(int) fdc_io_write (PPDMDEVINS pDevIns,
2366 void *pvUser,
2367 RTIOPORT Port,
2368 uint32_t u32,
2369 unsigned cb)
2370{
2371 if (cb == 1) {
2372 fdctrl_write (pvUser, Port, u32);
2373 }
2374 else {
2375 AssertMsgFailed(("Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
2376 }
2377 return VINF_SUCCESS;
2378}
2379
2380static DECLCALLBACK(int) fdc_io_read (PPDMDEVINS pDevIns,
2381 void *pvUser,
2382 RTIOPORT Port,
2383 uint32_t *pu32,
2384 unsigned cb)
2385{
2386 if (cb == 1) {
2387 *pu32 = fdctrl_read (pvUser, Port);
2388 return VINF_SUCCESS;
2389 }
2390 else {
2391 return VERR_IOM_IOPORT_UNUSED;
2392 }
2393}
2394
2395static DECLCALLBACK(int) fdcSaveExec (PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
2396{
2397 fdctrl_t *s = PDMINS_2_DATA (pDevIns, fdctrl_t *);
2398 QEMUFile *f = pSSMHandle;
2399 unsigned int i;
2400
2401 qemu_put_8s (f, &s->version);
2402 qemu_put_8s (f, &s->irq_lvl);
2403 qemu_put_8s (f, &s->dma_chann);
2404 qemu_put_be32s (f, &s->io_base);
2405 qemu_put_8s (f, &s->state);
2406 qemu_put_8s (f, &s->dma_en);
2407 qemu_put_8s (f, &s->cur_drv);
2408 qemu_put_8s (f, &s->bootsel);
2409 qemu_put_buffer (f, s->fifo, FD_SECTOR_LEN);
2410 qemu_put_be32s (f, &s->data_pos);
2411 qemu_put_be32s (f, &s->data_len);
2412 qemu_put_8s (f, &s->data_state);
2413 qemu_put_8s (f, &s->data_dir);
2414 qemu_put_8s (f, &s->int_status);
2415 qemu_put_8s (f, &s->eot);
2416 qemu_put_8s (f, &s->timer0);
2417 qemu_put_8s (f, &s->timer1);
2418 qemu_put_8s (f, &s->precomp_trk);
2419 qemu_put_8s (f, &s->config);
2420 qemu_put_8s (f, &s->lock);
2421 qemu_put_8s (f, &s->pwrd);
2422
2423 for (i = 0; i < sizeof (s->drives) / sizeof (s->drives[0]); ++i) {
2424 fdrive_t *d = &s->drives[i];
2425
2426 SSMR3PutMem (pSSMHandle, &d->Led, sizeof (d->Led));
2427 qemu_put_be32s (f, &d->drive);
2428 qemu_put_be32s (f, &d->drflags);
2429 qemu_put_8s (f, &d->perpendicular);
2430 qemu_put_8s (f, &d->head);
2431 qemu_put_8s (f, &d->track);
2432 qemu_put_8s (f, &d->sect);
2433 qemu_put_8s (f, &d->dir);
2434 qemu_put_8s (f, &d->rw);
2435 qemu_put_be32s (f, &d->flags);
2436 qemu_put_8s (f, &d->last_sect);
2437 qemu_put_8s (f, &d->max_track);
2438 qemu_put_be16s (f, &d->bps);
2439 qemu_put_8s (f, &d->ro);
2440 }
2441 return TMR3TimerSave (s->result_timer, pSSMHandle);
2442}
2443
2444static DECLCALLBACK(int) fdcLoadExec (PPDMDEVINS pDevIns,
2445 PSSMHANDLE pSSMHandle,
2446 uint32_t uVersion,
2447 uint32_t uPass)
2448{
2449 fdctrl_t *s = PDMINS_2_DATA (pDevIns, fdctrl_t *);
2450 QEMUFile *f = pSSMHandle;
2451 unsigned int i;
2452
2453 AssertMsgReturn(uVersion == 1, ("%d\n", uVersion), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION);
2454 Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
2455
2456 qemu_get_8s (f, &s->version);
2457 qemu_get_8s (f, &s->irq_lvl);
2458 qemu_get_8s (f, &s->dma_chann);
2459 qemu_get_be32s (f, &s->io_base);
2460 qemu_get_8s (f, &s->state);
2461 qemu_get_8s (f, &s->dma_en);
2462 qemu_get_8s (f, &s->cur_drv);
2463 qemu_get_8s (f, &s->bootsel);
2464 qemu_get_buffer (f, s->fifo, FD_SECTOR_LEN);
2465 qemu_get_be32s (f, &s->data_pos);
2466 qemu_get_be32s (f, &s->data_len);
2467 qemu_get_8s (f, &s->data_state);
2468 qemu_get_8s (f, &s->data_dir);
2469 qemu_get_8s (f, &s->int_status);
2470 qemu_get_8s (f, &s->eot);
2471 qemu_get_8s (f, &s->timer0);
2472 qemu_get_8s (f, &s->timer1);
2473 qemu_get_8s (f, &s->precomp_trk);
2474 qemu_get_8s (f, &s->config);
2475 qemu_get_8s (f, &s->lock);
2476 qemu_get_8s (f, &s->pwrd);
2477
2478 for (i = 0; i < sizeof (s->drives) / sizeof (s->drives[0]); ++i) {
2479 fdrive_t *d = &s->drives[i];
2480
2481 SSMR3GetMem (pSSMHandle, &d->Led, sizeof (d->Led));
2482 qemu_get_be32s (f, &d->drive);
2483 qemu_get_be32s (f, &d->drflags);
2484 qemu_get_8s (f, &d->perpendicular);
2485 qemu_get_8s (f, &d->head);
2486 qemu_get_8s (f, &d->track);
2487 qemu_get_8s (f, &d->sect);
2488 qemu_get_8s (f, &d->dir);
2489 qemu_get_8s (f, &d->rw);
2490 qemu_get_be32s (f, &d->flags);
2491 qemu_get_8s (f, &d->last_sect);
2492 qemu_get_8s (f, &d->max_track);
2493 qemu_get_be16s (f, &d->bps);
2494 qemu_get_8s (f, &d->ro);
2495 }
2496 return TMR3TimerLoad (s->result_timer, pSSMHandle);
2497}
2498
2499/**
2500 * @interface_method_impl{PDMIBASE,pfnQueryInterface}
2501 */
2502static DECLCALLBACK(void *) fdQueryInterface (PPDMIBASE pInterface, const char *pszIID)
2503{
2504 fdrive_t *pDrive = PDMIBASE_2_FDRIVE(pInterface);
2505
2506 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrive->IBase);
2507 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBLOCKPORT, &pDrive->IPort);
2508 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUNTNOTIFY, &pDrive->IMountNotify);
2509 return NULL;
2510}
2511
2512/**
2513 * Gets the pointer to the status LED of a unit.
2514 *
2515 * @returns VBox status code.
2516 * @param pInterface Pointer to the interface structure containing the called function pointer.
2517 * @param iLUN The unit which status LED we desire.
2518 * @param ppLed Where to store the LED pointer.
2519 */
2520static DECLCALLBACK(int) fdcStatusQueryStatusLed (PPDMILEDPORTS pInterface,
2521 unsigned iLUN,
2522 PPDMLED *ppLed)
2523{
2524 fdctrl_t *fdctrl = (fdctrl_t *)
2525 ((uintptr_t )pInterface - RT_OFFSETOF (fdctrl_t, ILeds));
2526 if (iLUN < RT_ELEMENTS(fdctrl->drives)) {
2527 *ppLed = &fdctrl->drives[iLUN].Led;
2528 Assert ((*ppLed)->u32Magic == PDMLED_MAGIC);
2529 return VINF_SUCCESS;
2530 }
2531 return VERR_PDM_LUN_NOT_FOUND;
2532}
2533
2534
2535/**
2536 * @interface_method_impl{PDMIBASE,pfnQueryInterface}
2537 */
2538static DECLCALLBACK(void *) fdcStatusQueryInterface(PPDMIBASE pInterface, const char *pszIID)
2539{
2540 fdctrl_t *pThis = RT_FROM_MEMBER (pInterface, fdctrl_t, IBaseStatus);
2541
2542 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBaseStatus);
2543 PDMIBASE_RETURN_INTERFACE(pszIID, PDMILEDPORTS, &pThis->ILeds);
2544 return NULL;
2545}
2546
2547
2548/**
2549 * Configure a drive.
2550 *
2551 * @returns VBox status code.
2552 * @param drv The drive in question.
2553 * @param pDevIns The driver instance.
2554 */
2555static int fdConfig (fdrive_t *drv, PPDMDEVINS pDevIns)
2556{
2557 static const char *descs[] = {"Floppy Drive A:", "Floppy Drive B"};
2558 int rc;
2559
2560 /*
2561 * Reset the LED just to be on the safe side.
2562 */
2563 Assert (RT_ELEMENTS(descs) > drv->iLUN);
2564 Assert (drv->Led.u32Magic == PDMLED_MAGIC);
2565 drv->Led.Actual.u32 = 0;
2566 drv->Led.Asserted.u32 = 0;
2567
2568 /*
2569 * Try attach the block device and get the interfaces.
2570 */
2571 rc = PDMDevHlpDriverAttach (pDevIns, drv->iLUN, &drv->IBase, &drv->pDrvBase, descs[drv->iLUN]);
2572 if (RT_SUCCESS (rc)) {
2573 drv->pDrvBlock = PDMIBASE_QUERY_INTERFACE(drv->pDrvBase, PDMIBLOCK);
2574 if (drv->pDrvBlock) {
2575 drv->pDrvBlockBios = PDMIBASE_QUERY_INTERFACE(drv->pDrvBase, PDMIBLOCKBIOS);
2576 if (drv->pDrvBlockBios) {
2577 drv->pDrvMount = PDMIBASE_QUERY_INTERFACE(drv->pDrvBase, PDMIMOUNT);
2578 if (drv->pDrvMount) {
2579 /*
2580 * Init the state.
2581 */
2582 drv->drive = FDRIVE_DRV_NONE;
2583 drv->drflags = 0;
2584 drv->perpendicular = 0;
2585 /* Disk */
2586 drv->last_sect = 0;
2587 drv->max_track = 0;
2588 drv->fMediaPresent = false;
2589 } else {
2590 AssertMsgFailed (("Configuration error: LUN#%d without mountable interface!\n", drv->iLUN));
2591 rc = VERR_PDM_MISSING_INTERFACE;
2592 }
2593
2594 } else {
2595 AssertMsgFailed (("Configuration error: LUN#%d hasn't a block BIOS interface!\n", drv->iLUN));
2596 rc = VERR_PDM_MISSING_INTERFACE;
2597 }
2598
2599 } else {
2600 AssertMsgFailed (("Configuration error: LUN#%d hasn't a block interface!\n", drv->iLUN));
2601 rc = VERR_PDM_MISSING_INTERFACE;
2602 }
2603 } else {
2604 AssertMsg (rc == VERR_PDM_NO_ATTACHED_DRIVER,
2605 ("Failed to attach LUN#%d. rc=%Rrc\n", drv->iLUN, rc));
2606 switch (rc) {
2607 case VERR_ACCESS_DENIED:
2608 /* Error already catched by DrvHostBase */
2609 break;
2610 case VERR_PDM_NO_ATTACHED_DRIVER:
2611 /* Legal on architectures without a floppy controller */
2612 break;
2613 default:
2614 rc = PDMDevHlpVMSetError (pDevIns, rc, RT_SRC_POS,
2615 N_ ("The floppy controller cannot attach to the floppy drive"));
2616 break;
2617 }
2618 }
2619
2620 if (RT_FAILURE (rc)) {
2621 drv->pDrvBase = NULL;
2622 drv->pDrvBlock = NULL;
2623 drv->pDrvBlockBios = NULL;
2624 drv->pDrvMount = NULL;
2625 }
2626 LogFlow (("fdConfig: returns %Rrc\n", rc));
2627 return rc;
2628}
2629
2630
2631/**
2632 * Attach command.
2633 *
2634 * This is called when we change block driver for a floppy drive.
2635 *
2636 * @returns VBox status code.
2637 * @param pDevIns The device instance.
2638 * @param iLUN The logical unit which is being detached.
2639 */
2640static DECLCALLBACK(int) fdcAttach (PPDMDEVINS pDevIns,
2641 unsigned iLUN, uint32_t fFlags)
2642{
2643 fdctrl_t *fdctrl = PDMINS_2_DATA (pDevIns, fdctrl_t *);
2644 fdrive_t *drv;
2645 int rc;
2646 LogFlow (("ideDetach: iLUN=%u\n", iLUN));
2647
2648 AssertMsgReturn(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG,
2649 ("The FDC device does not support hotplugging\n"),
2650 VERR_INVALID_PARAMETER);
2651
2652 /*
2653 * Validate.
2654 */
2655 if (iLUN > 2) {
2656 AssertMsgFailed (("Configuration error: cannot attach or detach any but the first two LUNs - iLUN=%u\n",
2657 iLUN));
2658 return VERR_PDM_DEVINS_NO_ATTACH;
2659 }
2660
2661 /*
2662 * Locate the drive and stuff.
2663 */
2664 drv = &fdctrl->drives[iLUN];
2665
2666 /* the usual paranoia */
2667 AssertRelease (!drv->pDrvBase);
2668 AssertRelease (!drv->pDrvBlock);
2669 AssertRelease (!drv->pDrvBlockBios);
2670 AssertRelease (!drv->pDrvMount);
2671
2672 rc = fdConfig (drv, pDevIns);
2673 AssertMsg (rc != VERR_PDM_NO_ATTACHED_DRIVER,
2674 ("Configuration error: failed to configure drive %d, rc=%Rrc\n", rc));
2675 if (RT_SUCCESS(rc)) {
2676 fd_revalidate (drv);
2677 }
2678
2679 LogFlow (("floppyAttach: returns %Rrc\n", rc));
2680 return rc;
2681}
2682
2683
2684/**
2685 * Detach notification.
2686 *
2687 * The floppy drive has been temporarily 'unplugged'.
2688 *
2689 * @param pDevIns The device instance.
2690 * @param iLUN The logical unit which is being detached.
2691 */
2692static DECLCALLBACK(void) fdcDetach (PPDMDEVINS pDevIns,
2693 unsigned iLUN, uint32_t fFlags)
2694{
2695 fdctrl_t *fdctrl = PDMINS_2_DATA (pDevIns, fdctrl_t *);
2696 LogFlow (("ideDetach: iLUN=%u\n", iLUN));
2697
2698 switch (iLUN) {
2699 case 0:
2700 case 1: {
2701 fdrive_t *drv = &fdctrl->drives[iLUN];
2702 drv->pDrvBase = NULL;
2703 drv->pDrvBlock = NULL;
2704 drv->pDrvBlockBios = NULL;
2705 drv->pDrvMount = NULL;
2706 break;
2707 }
2708
2709 default:
2710 AssertMsgFailed (("Cannot detach LUN#%d!\n", iLUN));
2711 break;
2712 }
2713}
2714
2715
2716/**
2717 * Handle reset.
2718 *
2719 * I haven't check the specs on what's supposed to happen on reset, but we
2720 * should get any 'FATAL: floppy recal:f07 ctrl not ready' when resetting
2721 * at wrong time like we do if this was all void.
2722 *
2723 * @param pDevIns The device instance.
2724 */
2725static DECLCALLBACK(void) fdcReset (PPDMDEVINS pDevIns)
2726{
2727 fdctrl_t *fdctrl = PDMINS_2_DATA (pDevIns, fdctrl_t *);
2728 unsigned i;
2729 LogFlow (("fdcReset:\n"));
2730
2731 fdctrl_reset(fdctrl, 0);
2732 fdctrl->state = FD_CTRL_ACTIVE;
2733
2734 for (i = 0; i < RT_ELEMENTS(fdctrl->drives); i++) {
2735 fd_revalidate(&fdctrl->drives[i]);
2736 }
2737}
2738
2739
2740/**
2741 * @interface_method_impl{PDMDEVREG,pfnConstruct}
2742 */
2743static DECLCALLBACK(int) fdcConstruct (PPDMDEVINS pDevIns,
2744 int iInstance,
2745 PCFGMNODE pCfg)
2746{
2747 int rc;
2748 fdctrl_t *fdctrl = PDMINS_2_DATA(pDevIns, fdctrl_t*);
2749 unsigned i;
2750 bool mem_mapped;
2751 uint16_t io_base;
2752 uint8_t irq_lvl, dma_chann;
2753 PPDMIBASE pBase;
2754
2755 Assert(iInstance == 0);
2756 PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
2757
2758 /*
2759 * Validate configuration.
2760 */
2761 if (!CFGMR3AreValuesValid(pCfg, "IRQ\0DMA\0MemMapped\0IOBase\0"))
2762 return VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
2763
2764 /*
2765 * Read the configuration.
2766 */
2767 rc = CFGMR3QueryU8 (pCfg, "IRQ", &irq_lvl);
2768 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2769 irq_lvl = 6;
2770 else if (RT_FAILURE (rc)) {
2771 AssertMsgFailed (("Configuration error: Failed to read U8 IRQ, rc=%Rrc\n", rc));
2772 return rc;
2773 }
2774
2775 rc = CFGMR3QueryU8 (pCfg, "DMA", &dma_chann);
2776 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2777 dma_chann = 2;
2778 else if (RT_FAILURE (rc)) {
2779 AssertMsgFailed (("Configuration error: Failed to read U8 DMA, rc=%Rrc\n", rc));
2780 return rc;
2781 }
2782
2783 rc = CFGMR3QueryU16 (pCfg, "IOBase", &io_base);
2784 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2785 io_base = 0x3f0;
2786 else if (RT_FAILURE (rc)) {
2787 AssertMsgFailed (("Configuration error: Failed to read U16 IOBase, rc=%Rrc\n", rc));
2788 return rc;
2789 }
2790
2791 rc = CFGMR3QueryBool (pCfg, "MemMapped", &mem_mapped);
2792 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2793 mem_mapped = false;
2794 else if (RT_FAILURE (rc)) {
2795 AssertMsgFailed (("Configuration error: Failed to read bool value MemMapped rc=%Rrc\n", rc));
2796 return rc;
2797 }
2798
2799 /*
2800 * Initialize data.
2801 */
2802 LogFlow(("fdcConstruct: irq_lvl=%d dma_chann=%d io_base=%#x\n", irq_lvl, dma_chann, io_base));
2803 fdctrl->pDevIns = pDevIns;
2804 fdctrl->version = 0x90; /* Intel 82078 controller */
2805 fdctrl->irq_lvl = irq_lvl;
2806 fdctrl->dma_chann = dma_chann;
2807 fdctrl->io_base = io_base;
2808 fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
2809
2810 fdctrl->IBaseStatus.pfnQueryInterface = fdcStatusQueryInterface;
2811 fdctrl->ILeds.pfnQueryStatusLed = fdcStatusQueryStatusLed;
2812
2813 for (i = 0; i < RT_ELEMENTS(fdctrl->drives); ++i) {
2814 fdrive_t *drv = &fdctrl->drives[i];
2815
2816 drv->drive = FDRIVE_DRV_NONE;
2817 drv->iLUN = i;
2818
2819 drv->IBase.pfnQueryInterface = fdQueryInterface;
2820 drv->IMountNotify.pfnMountNotify = fdMountNotify;
2821 drv->IMountNotify.pfnUnmountNotify = fdUnmountNotify;
2822 drv->Led.u32Magic = PDMLED_MAGIC;
2823 }
2824
2825 /*
2826 * Create the FDC timer.
2827 */
2828 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, fdc_timer, fdctrl,
2829 TMTIMER_FLAGS_DEFAULT_CRIT_SECT, "FDC Timer", &fdctrl->result_timer);
2830 if (RT_FAILURE (rc))
2831 return rc;
2832
2833 /*
2834 * Register DMA channel.
2835 */
2836 if (fdctrl->dma_chann != 0xff) {
2837 fdctrl->dma_en = 1;
2838 rc = PDMDevHlpDMARegister (pDevIns, dma_chann, &fdctrl_transfer_handler, fdctrl);
2839 if (RT_FAILURE (rc))
2840 return rc;
2841 } else
2842 fdctrl->dma_en = 0;
2843
2844 /*
2845 * IO / MMIO.
2846 */
2847 if (mem_mapped) {
2848 AssertMsgFailed (("Memory mapped floppy not support by now\n"));
2849 return VERR_NOT_SUPPORTED;
2850#if 0
2851 FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
2852 io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
2853 cpu_register_physical_memory(base, 0x08, io_mem);
2854#endif
2855 } else {
2856 rc = PDMDevHlpIOPortRegister (pDevIns, io_base + 0x1, 5, fdctrl,
2857 fdc_io_write, fdc_io_read, NULL, NULL, "FDC#1");
2858 if (RT_FAILURE (rc))
2859 return rc;
2860
2861 rc = PDMDevHlpIOPortRegister (pDevIns, io_base + 0x7, 1, fdctrl,
2862 fdc_io_write, fdc_io_read, NULL, NULL, "FDC#2");
2863 if (RT_FAILURE (rc))
2864 return rc;
2865 }
2866
2867 /*
2868 * Register the saved state data unit.
2869 */
2870 rc = PDMDevHlpSSMRegister (pDevIns, 1 /*uVersion*/, sizeof(*fdctrl), fdcSaveExec, fdcLoadExec);
2871 if (RT_FAILURE(rc))
2872 return rc;
2873
2874 /*
2875 * Attach the status port (optional).
2876 */
2877 rc = PDMDevHlpDriverAttach (pDevIns, PDM_STATUS_LUN, &fdctrl->IBaseStatus, &pBase, "Status Port");
2878 if (RT_SUCCESS (rc)) {
2879 fdctrl->pLedsConnector = PDMIBASE_QUERY_INTERFACE(pBase, PDMILEDCONNECTORS);
2880 } else if (rc != VERR_PDM_NO_ATTACHED_DRIVER) {
2881 AssertMsgFailed (("Failed to attach to status driver. rc=%Rrc\n",
2882 rc));
2883 return rc;
2884 }
2885
2886 /*
2887 * Initialize drives.
2888 */
2889 for (i = 0; i < RT_ELEMENTS(fdctrl->drives); i++) {
2890 fdrive_t *drv = &fdctrl->drives[i];
2891 rc = fdConfig (drv, pDevIns);
2892 if ( RT_FAILURE (rc)
2893 && rc != VERR_PDM_NO_ATTACHED_DRIVER) {
2894 AssertMsgFailed (("Configuration error: failed to configure drive %d, rc=%Rrc\n", rc));
2895 return rc;
2896 }
2897 }
2898
2899 fdctrl_reset(fdctrl, 0);
2900 fdctrl->state = FD_CTRL_ACTIVE;
2901
2902 for (i = 0; i < RT_ELEMENTS(fdctrl->drives); i++)
2903 fd_revalidate(&fdctrl->drives[i]);
2904
2905 return VINF_SUCCESS;
2906}
2907
2908/**
2909 * The device registration structure.
2910 */
2911const PDMDEVREG g_DeviceFloppyController =
2912{
2913 /* u32Version */
2914 PDM_DEVREG_VERSION,
2915 /* szName */
2916 "i82078",
2917 /* szRCMod */
2918 "",
2919 /* szR0Mod */
2920 "",
2921 /* pszDescription */
2922 "Floppy drive controller (Intel 82078)",
2923 /* fFlags */
2924 PDM_DEVREG_FLAGS_DEFAULT_BITS,
2925 /* fClass */
2926 PDM_DEVREG_CLASS_STORAGE,
2927 /* cMaxInstances */
2928 1,
2929 /* cbInstance */
2930 sizeof(fdctrl_t),
2931 /* pfnConstruct */
2932 fdcConstruct,
2933 /* pfnDestruct */
2934 NULL,
2935 /* pfnRelocate */
2936 NULL,
2937 /* pfnIOCtl */
2938 NULL,
2939 /* pfnPowerOn */
2940 NULL,
2941 /* pfnReset */
2942 fdcReset,
2943 /* pfnSuspend */
2944 NULL,
2945 /* pfnResume */
2946 NULL,
2947 /* pfnAttach */
2948 fdcAttach,
2949 /* pfnDetach */
2950 fdcDetach,
2951 /* pfnQueryInterface. */
2952 NULL,
2953 /* pfnInitComplete */
2954 NULL,
2955 /* pfnPowerOff */
2956 NULL,
2957 /* pfnSoftReset */
2958 NULL,
2959 /* u32VersionEnd */
2960 PDM_DEVREG_VERSION
2961};
2962
2963#endif /* VBOX */
2964
2965/*
2966 * Local Variables:
2967 * mode: c
2968 * c-file-style: "k&r"
2969 * indent-tabs-mode: nil
2970 * End:
2971 */
2972
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