fdc.c@ 22264

Last change on this file since 22264 was 21328, checked in by vboxsync, 15 years ago
addendum to r49488
Property svn:eol-style set to `native`
File size: 96.3 KB

Line
1	#ifdef VBOX
2	/** @file
3	*
4	* VBox storage devices:
5	* Floppy disk controller
6	*/
7
8	/*
9	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
10	*
11	* This file is part of VirtualBox Open Source Edition (OSE), as
12	* available from http://www.virtualbox.org. This file is free software;
13	* you can redistribute it and/or modify it under the terms of the GNU
14	* General Public License (GPL) as published by the Free Software
15	* Foundation, in version 2 as it comes in the "COPYING" file of the
16	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
17	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
18	*
19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
20	* Clara, CA 95054 USA or visit http://www.sun.com if you need
21	* additional information or have any questions.
22	* --------------------------------------------------------------------
23	*
24	* This code is based on:
25	*
26	* QEMU Floppy disk emulator (Intel 82078)
27	*
28	* Copyright (c) 2003 Jocelyn Mayer
29	*
30	* Permission is hereby granted, free of charge, to any person obtaining a copy
31	* of this software and associated documentation files (the "Software"), to deal
32	* in the Software without restriction, including without limitation the rights
33	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
34	* copies of the Software, and to permit persons to whom the Software is
35	* furnished to do so, subject to the following conditions:
36	*
37	* The above copyright notice and this permission notice shall be included in
38	* all copies or substantial portions of the Software.
39	*
40	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
41	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
42	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
43	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
44	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
45	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
46	* THE SOFTWARE.
47	*
48	*/
49
50
51	/*******************************************************************************
52	* Header Files *
53	*******************************************************************************/
54	#define LOG_GROUP LOG_GROUP_DEV_FDC
55	#include <VBox/pdmdev.h>
56	#include <iprt/assert.h>
57	#include <iprt/uuid.h>
58	#include <iprt/string.h>
59
60	#include "Builtins.h"
61	#include "../vl_vbox.h"
62
63	#define MAX_FD 2
64
65	#define PDMIBASE_2_FDRIVE(pInterface) \
66	((fdrive_t *)((uintptr_t)(pInterface) - RT_OFFSETOF(fdrive_t, IBase)))
67
68	#define PDMIMOUNTNOTIFY_2_FDRIVE(p) \
69	((fdrive_t *)((uintptr_t)(p) - RT_OFFSETOF(fdrive_t, IMountNotify)))
70
71	#endif /* VBOX */
72
73	#ifndef VBOX
74	#include "vl.h"
75	#endif /* !VBOX */
76
77	/********************************************************/
78	/* debug Floppy devices */
79	/* #define DEBUG_FLOPPY */
80
81	#ifndef VBOX
82	#ifdef DEBUG_FLOPPY
83	#define FLOPPY_DPRINTF(fmt, args...) \
84	do { printf("FLOPPY: " fmt , ##args); } while (0)
85	#endif
86	#else /* !VBOX */
87	# ifdef LOG_ENABLED
88	static void FLOPPY_DPRINTF (const char *fmt, ...)
89	{
90	if (LogIsEnabled ()) {
91	va_list args;
92	va_start (args, fmt);
93	RTLogLogger (NULL, NULL, "floppy: %N", fmt, &args); /* %N - nested va_list * type formatting call. */
94	va_end (args);
95	}
96	}
97	# else
98	DECLINLINE(void) FLOPPY_DPRINTF(const char *pszFmt, ...) {}
99	# endif
100	#endif /* !VBOX */
101
102	#ifndef VBOX
103	#define FLOPPY_ERROR(fmt, args...) \
104	do { printf("FLOPPY ERROR: %s: " fmt, __func__ , ##args); } while (0)
105	#else /* VBOX */
106	# define FLOPPY_ERROR RTLogPrintf
107	#endif /* VBOX */
108
109	#ifdef VBOX
110	typedef struct fdctrl_t fdctrl_t;
111	#endif /* VBOX */
112
113	/********************************************************/
114	/* Floppy drive emulation */
115
116	/* Will always be a fixed parameter for us */
117	#define FD_SECTOR_LEN 512
118	#define FD_SECTOR_SC 2 /* Sector size code */
119
120	/* Floppy disk drive emulation */
121	typedef enum fdisk_type_t {
122	FDRIVE_DISK_288 = 0x01, /* 2.88 MB disk */
123	FDRIVE_DISK_144 = 0x02, /* 1.44 MB disk */
124	FDRIVE_DISK_720 = 0x03, /* 720 kB disk */
125	FDRIVE_DISK_USER = 0x04, /* User defined geometry */
126	FDRIVE_DISK_NONE = 0x05 /* No disk */
127	} fdisk_type_t;
128
129	typedef enum fdrive_type_t {
130	FDRIVE_DRV_144 = 0x00, /* 1.44 MB 3"5 drive */
131	FDRIVE_DRV_288 = 0x01, /* 2.88 MB 3"5 drive */
132	FDRIVE_DRV_120 = 0x02, /* 1.2 MB 5"25 drive */
133	FDRIVE_DRV_NONE = 0x03 /* No drive connected */
134	} fdrive_type_t;
135
136	typedef enum fdrive_flags_t {
137	FDRIVE_MOTOR_ON = 0x01, /* motor on/off */
138	FDRIVE_REVALIDATE = 0x02 /* Revalidated */
139	} fdrive_flags_t;
140
141	typedef enum fdisk_flags_t {
142	FDISK_DBL_SIDES = 0x01
143	} fdisk_flags_t;
144
145	typedef struct fdrive_t {
146	#ifndef VBOX
147	BlockDriverState *bs;
148	#else /* VBOX */
149	/** Pointer to the attached driver's base interface. */
150	R3PTRTYPE(PPDMIBASE) pDrvBase;
151	/** Pointer to the attached driver's block interface. */
152	R3PTRTYPE(PPDMIBLOCK) pDrvBlock;
153	/** Pointer to the attached driver's block bios interface. */
154	R3PTRTYPE(PPDMIBLOCKBIOS) pDrvBlockBios;
155	/** Pointer to the attached driver's mount interface.
156	* This is NULL if the driver isn't a removable unit. */
157	R3PTRTYPE(PPDMIMOUNT) pDrvMount;
158	/** The base interface. */
159	PDMIBASE IBase;
160	/** The block port interface. */
161	PDMIBLOCKPORT IPort;
162	/** The mount notify interface. */
163	PDMIMOUNTNOTIFY IMountNotify;
164	/** The LUN #. */
165	RTUINT iLUN;
166	/** The LED for this LUN. */
167	PDMLED Led;
168	/** The Diskette present/missing flag. */
169	bool fMediaPresent;
170	#endif
171	/* Drive status */
172	fdrive_type_t drive;
173	fdrive_flags_t drflags;
174	uint8_t perpendicular; /* 2.88 MB access mode */
175	/* Position */
176	uint8_t head;
177	uint8_t track;
178	uint8_t sect;
179	/* Last operation status */
180	uint8_t dir; /* Direction */
181	uint8_t rw; /* Read/write */
182	/* Media */
183	fdisk_flags_t flags;
184	uint8_t last_sect; /* Nb sector per track */
185	uint8_t max_track; /* Nb of tracks */
186	uint16_t bps; /* Bytes per sector */
187	uint8_t ro; /* Is read-only */
188	} fdrive_t;
189
190	#ifndef VBOX
191	static void fd_init (fdrive_t drv, BlockDriverState bs)
192	{
193	/* Drive */
194	drv->bs = bs;
195	drv->drive = FDRIVE_DRV_NONE;
196	drv->drflags = 0;
197	drv->perpendicular = 0;
198	/* Disk */
199	drv->last_sect = 0;
200	drv->max_track = 0;
201	}
202	#endif
203
204	static unsigned _fd_sector (uint8_t head, uint8_t track,
205	uint8_t sect, uint8_t last_sect)
206	{
207	return (((track * 2) + head) * last_sect) + sect - 1; /* sect >= 1 */
208	}
209
210	/* Returns current position, in sectors, for given drive */
211	static unsigned fd_sector (fdrive_t *drv)
212	{
213	return _fd_sector(drv->head, drv->track, drv->sect, drv->last_sect);
214	}
215
216	static int fd_seek (fdrive_t *drv, uint8_t head, uint8_t track, uint8_t sect,
217	int enable_seek)
218	{
219	uint32_t sector;
220	int ret;
221
222	if (track > drv->max_track \|\|
223	(head != 0 && (drv->flags & FDISK_DBL_SIDES) == 0)) {
224	FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
225	head, track, sect, 1,
226	(drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
227	drv->max_track, drv->last_sect);
228	return 2;
229	}
230	if (sect > drv->last_sect) {
231	FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
232	head, track, sect, 1,
233	(drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
234	drv->max_track, drv->last_sect);
235	return 3;
236	}
237	sector = _fd_sector(head, track, sect, drv->last_sect);
238	ret = 0;
239	if (sector != fd_sector(drv)) {
240	#if 0
241	if (!enable_seek) {
242	FLOPPY_ERROR("no implicit seek %d %02x %02x (max=%d %02x %02x)\n",
243	head, track, sect, 1, drv->max_track, drv->last_sect);
244	return 4;
245	}
246	#endif
247	drv->head = head;
248	if (drv->track != track)
249	ret = 1;
250	drv->track = track;
251	drv->sect = sect;
252	}
253
254	return ret;
255	}
256
257	/* Set drive back to track 0 */
258	static void fd_recalibrate (fdrive_t *drv)
259	{
260	FLOPPY_DPRINTF("recalibrate\n");
261	drv->head = 0;
262	drv->track = 0;
263	drv->sect = 1;
264	drv->dir = 1;
265	drv->rw = 0;
266	}
267
268	/* Recognize floppy formats */
269	typedef struct fd_format_t {
270	fdrive_type_t drive;
271	fdisk_type_t disk;
272	uint8_t last_sect;
273	uint8_t max_track;
274	uint8_t max_head;
275	const char *str;
276	} fd_format_t;
277
278	static fd_format_t fd_formats[] = {
279	/* First entry is default format */
280	/* 1.44 MB 3"1/2 floppy disks */
281	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 18, 80, 1, "1.44 MB 3\"1/2", },
282	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 20, 80, 1, "1.6 MB 3\"1/2", },
283	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 80, 1, "1.68 MB 3\"1/2", },
284	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 82, 1, "1.72 MB 3\"1/2", },
285	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 83, 1, "1.74 MB 3\"1/2", },
286	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 22, 80, 1, "1.76 MB 3\"1/2", },
287	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 23, 80, 1, "1.84 MB 3\"1/2", },
288	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 24, 80, 1, "1.92 MB 3\"1/2", },
289	/* 2.88 MB 3"1/2 floppy disks */
290	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 36, 80, 1, "2.88 MB 3\"1/2", },
291	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 39, 80, 1, "3.12 MB 3\"1/2", },
292	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 40, 80, 1, "3.2 MB 3\"1/2", },
293	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 44, 80, 1, "3.52 MB 3\"1/2", },
294	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 48, 80, 1, "3.84 MB 3\"1/2", },
295	/* 720 kB 3"1/2 floppy disks */
296	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 1, "720 kB 3\"1/2", },
297	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 80, 1, "800 kB 3\"1/2", },
298	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 82, 1, "820 kB 3\"1/2", },
299	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 83, 1, "830 kB 3\"1/2", },
300	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 13, 80, 1, "1.04 MB 3\"1/2", },
301	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 14, 80, 1, "1.12 MB 3\"1/2", },
302	/* 1.2 MB 5"1/4 floppy disks */
303	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 15, 80, 1, "1.2 kB 5\"1/4", },
304	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 80, 1, "1.44 MB 5\"1/4", },
305	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 82, 1, "1.48 MB 5\"1/4", },
306	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 83, 1, "1.49 MB 5\"1/4", },
307	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 20, 80, 1, "1.6 MB 5\"1/4", },
308	/* 720 kB 5"1/4 floppy disks */
309	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 80, 1, "720 kB 5\"1/4", },
310	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 11, 80, 1, "880 kB 5\"1/4", },
311	/* 360 kB 5"1/4 floppy disks */
312	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 1, "360 kB 5\"1/4", },
313	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 0, "180 kB 5\"1/4", },
314	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 41, 1, "410 kB 5\"1/4", },
315	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 42, 1, "420 kB 5\"1/4", },
316	/* 320 kB 5"1/4 floppy disks */
317	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 1, "320 kB 5\"1/4", },
318	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 0, "160 kB 5\"1/4", },
319	/* 360 kB must match 5"1/4 better than 3"1/2... */
320	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 0, "360 kB 3\"1/2", },
321	/* end */
322	{ FDRIVE_DRV_NONE, FDRIVE_DISK_NONE, -1, -1, 0, NULL, },
323	};
324
325	/* Revalidate a disk drive after a disk change */
326	static void fd_revalidate (fdrive_t *drv)
327	{
328	fd_format_t *parse;
329	int64_t nb_sectors, size;
330	int i, first_match, match;
331	int nb_heads, max_track, last_sect, ro;
332
333	FLOPPY_DPRINTF("revalidate\n");
334	drv->drflags &= ~FDRIVE_REVALIDATE;
335	#ifndef VBOX
336	if (drv->bs != NULL && bdrv_is_inserted(drv->bs)) {
337	ro = bdrv_is_read_only(drv->bs);
338	bdrv_get_geometry_hint(drv->bs, &nb_heads, &max_track, &last_sect);
339	#else /* VBOX */
340	/** @todo / /* @todo r=bird: todo what exactly? */
341	if (drv->pDrvBlock
342	&& drv->pDrvMount
343	&& drv->pDrvMount->pfnIsMounted (drv->pDrvMount)) {
344	ro = drv->pDrvBlock->pfnIsReadOnly (drv->pDrvBlock);
345	nb_heads = 0;
346	max_track = 0;
347	last_sect = 0;
348	#endif /* VBOX */
349	if (nb_heads != 0 && max_track != 0 && last_sect != 0) {
350	FLOPPY_DPRINTF("User defined disk (%d %d %d)",
351	nb_heads - 1, max_track, last_sect);
352	} else {
353	#ifndef VBOX
354	bdrv_get_geometry(drv->bs, &nb_sectors);
355	#else /* VBOX */
356	/* @todo / /* @todo r=bird: todo what exactly?!?!? */
357	{
358	uint64_t size = drv->pDrvBlock->pfnGetSize (drv->pDrvBlock);
359	nb_sectors = size / 512;
360	}
361	#endif /* VBOX */
362	match = -1;
363	first_match = -1;
364	for (i = 0;; i++) {
365	parse = &fd_formats[i];
366	if (parse->drive == FDRIVE_DRV_NONE)
367	break;
368	if (drv->drive == parse->drive \|\|
369	drv->drive == FDRIVE_DRV_NONE) {
370	size = (parse->max_head + 1) * parse->max_track *
371	parse->last_sect;
372	if (nb_sectors == size) {
373	match = i;
374	break;
375	}
376	if (first_match == -1)
377	first_match = i;
378	}
379	}
380	if (match == -1) {
381	if (first_match == -1)
382	match = 1;
383	else
384	match = first_match;
385	parse = &fd_formats[match];
386	}
387	nb_heads = parse->max_head + 1;
388	max_track = parse->max_track;
389	last_sect = parse->last_sect;
390	drv->drive = parse->drive;
391	FLOPPY_DPRINTF("%s floppy disk (%d h %d t %d s) %s\n", parse->str,
392	nb_heads, max_track, last_sect, ro ? "ro" : "rw");
393	}
394	if (nb_heads == 1) {
395	drv->flags &= ~FDISK_DBL_SIDES;
396	} else {
397	drv->flags \|= FDISK_DBL_SIDES;
398	}
399	drv->max_track = max_track;
400	drv->last_sect = last_sect;
401	drv->ro = ro;
402	#ifdef VBOX
403	drv->fMediaPresent = true;
404	#endif
405	} else {
406	FLOPPY_DPRINTF("No disk in drive\n");
407	drv->last_sect = 0;
408	drv->max_track = 0;
409	drv->flags &= ~FDISK_DBL_SIDES;
410	#ifdef VBOX
411	drv->fMediaPresent = false;
412	#endif
413	}
414	drv->drflags \|= FDRIVE_REVALIDATE;
415	}
416
417	/* Motor control */
418	static void fd_start (fdrive_t *drv)
419	{
420	drv->drflags \|= FDRIVE_MOTOR_ON;
421	}
422
423	static void fd_stop (fdrive_t *drv)
424	{
425	drv->drflags &= ~FDRIVE_MOTOR_ON;
426	}
427
428	/* Re-initialise a drives (motor off, repositioned) */
429	static void fd_reset (fdrive_t *drv)
430	{
431	fd_stop(drv);
432	fd_recalibrate(drv);
433	}
434
435	/********************************************************/
436	/* Intel 82078 floppy disk controller emulation */
437
438	#define target_ulong uint32_t
439	static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq);
440	static void fdctrl_reset_fifo (fdctrl_t *fdctrl);
441	#ifndef VBOX
442	static int fdctrl_transfer_handler (void *opaque, int nchan, int dma_pos, int dma_len);
443	#else /* VBOX: */
444	static DECLCALLBACK(uint32_t) fdctrl_transfer_handler (PPDMDEVINS pDevIns,
445	void *opaque,
446	unsigned nchan,
447	uint32_t dma_pos,
448	uint32_t dma_len);
449	#endif /* VBOX */
450	static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status);
451	static void fdctrl_result_timer(void *opaque);
452
453	static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl);
454	static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl);
455	static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value);
456	static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl);
457	static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value);
458	static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl);
459	static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value);
460	static uint32_t fdctrl_read_data (fdctrl_t *fdctrl);
461	static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value);
462	static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl);
463
464	enum {
465	FD_CTRL_ACTIVE = 0x01, /* XXX: suppress that */
466	FD_CTRL_RESET = 0x02,
467	FD_CTRL_SLEEP = 0x04, /* XXX: suppress that */
468	FD_CTRL_BUSY = 0x08, /* dma transfer in progress */
469	FD_CTRL_INTR = 0x10
470	};
471
472	enum {
473	FD_DIR_WRITE = 0,
474	FD_DIR_READ = 1,
475	FD_DIR_SCANE = 2,
476	FD_DIR_SCANL = 3,
477	FD_DIR_SCANH = 4
478	};
479
480	enum {
481	FD_STATE_CMD = 0x00,
482	FD_STATE_STATUS = 0x01,
483	FD_STATE_DATA = 0x02,
484	FD_STATE_STATE = 0x03,
485	FD_STATE_MULTI = 0x10,
486	FD_STATE_SEEK = 0x20,
487	FD_STATE_FORMAT = 0x40
488	};
489
490	#define FD_STATE(state) ((state) & FD_STATE_STATE)
491	#define FD_SET_STATE(state, new_state) \
492	do { (state) = ((state) & ~FD_STATE_STATE) \| (new_state); } while (0)
493	#define FD_MULTI_TRACK(state) ((state) & FD_STATE_MULTI)
494	#define FD_DID_SEEK(state) ((state) & FD_STATE_SEEK)
495	#define FD_FORMAT_CMD(state) ((state) & FD_STATE_FORMAT)
496
497	struct fdctrl_t {
498	#ifndef VBOX
499	fdctrl_t *fdctrl;
500	#endif
501	/* Controller's identification */
502	uint8_t version;
503	/* HW */
504	#ifndef VBOX
505	int irq_lvl;
506	int dma_chann;
507	#else
508	uint8_t irq_lvl;
509	uint8_t dma_chann;
510	#endif
511	uint32_t io_base;
512	/* Controller state */
513	QEMUTimer *result_timer;
514	uint8_t state;
515	uint8_t dma_en;
516	uint8_t cur_drv;
517	uint8_t bootsel;
518	/* Command FIFO */
519	uint8_t fifo[FD_SECTOR_LEN];
520	uint32_t data_pos;
521	uint32_t data_len;
522	uint8_t data_state;
523	uint8_t data_dir;
524	uint8_t int_status;
525	uint8_t eot; /* last wanted sector */
526	/* States kept only to be returned back */
527	/* Timers state */
528	uint8_t timer0;
529	uint8_t timer1;
530	/* precompensation */
531	uint8_t precomp_trk;
532	uint8_t config;
533	uint8_t lock;
534	/* Power down config (also with status regB access mode */
535	uint8_t pwrd;
536	/* Floppy drives */
537	fdrive_t drives[2];
538	#ifdef VBOX
539	/** Pointer to device instance. */
540	PPDMDEVINS pDevIns;
541
542	/** Status Port - The base interface. */
543	PDMIBASE IBaseStatus;
544	/** Status Port - The Leds interface. */
545	PDMILEDPORTS ILeds;
546	/** Status Port - The Partner of ILeds. */
547	PPDMILEDCONNECTORS pLedsConnector;
548	#endif
549	};
550
551	static uint32_t fdctrl_read (void *opaque, uint32_t reg)
552	{
553	fdctrl_t *fdctrl = opaque;
554	uint32_t retval;
555
556	switch (reg & 0x07) {
557	case 0x01:
558	retval = fdctrl_read_statusB(fdctrl);
559	break;
560	case 0x02:
561	retval = fdctrl_read_dor(fdctrl);
562	break;
563	case 0x03:
564	retval = fdctrl_read_tape(fdctrl);
565	break;
566	case 0x04:
567	retval = fdctrl_read_main_status(fdctrl);
568	break;
569	case 0x05:
570	retval = fdctrl_read_data(fdctrl);
571	break;
572	case 0x07:
573	retval = fdctrl_read_dir(fdctrl);
574	break;
575	default:
576	retval = (uint32_t)(-1);
577	break;
578	}
579	FLOPPY_DPRINTF("read reg%d: 0x%02x\n", reg & 7, retval);
580
581	return retval;
582	}
583
584	static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value)
585	{
586	fdctrl_t *fdctrl = opaque;
587
588	FLOPPY_DPRINTF("write reg%d: 0x%02x\n", reg & 7, value);
589
590	switch (reg & 0x07) {
591	case 0x02:
592	fdctrl_write_dor(fdctrl, value);
593	break;
594	case 0x03:
595	fdctrl_write_tape(fdctrl, value);
596	break;
597	case 0x04:
598	fdctrl_write_rate(fdctrl, value);
599	break;
600	case 0x05:
601	fdctrl_write_data(fdctrl, value);
602	break;
603	default:
604	break;
605	}
606	}
607
608	#ifndef VBOX
609	static void fd_change_cb (void *opaque)
610	{
611	fdrive_t *drv = opaque;
612
613	FLOPPY_DPRINTF("disk change\n");
614	fd_revalidate(drv);
615	#if 0
616	fd_recalibrate(drv);
617	fdctrl_reset_fifo(drv->fdctrl);
618	fdctrl_raise_irq(drv->fdctrl, 0x20);
619	#endif
620	}
621
622	#else /* VBOX */
623	/**
624	* Called when a media is mounted.
625	*
626	* @param pInterface Pointer to the interface structure
627	* containing the called function pointer.
628	*/
629	static DECLCALLBACK(void) fdMountNotify(PPDMIMOUNTNOTIFY pInterface)
630	{
631	fdrive_t *drv = PDMIMOUNTNOTIFY_2_FDRIVE (pInterface);
632	LogFlow(("fdMountNotify:\n"));
633	fd_revalidate (drv);
634	}
635
636	/**
637	* Called when a media is unmounted
638	* @param pInterface Pointer to the interface structure containing the called function pointer.
639	*/
640	static DECLCALLBACK(void) fdUnmountNotify(PPDMIMOUNTNOTIFY pInterface)
641	{
642	fdrive_t *drv = PDMIMOUNTNOTIFY_2_FDRIVE (pInterface);
643	LogFlow(("fdUnmountNotify:\n"));
644	fd_revalidate (drv);
645	}
646	#endif
647
648	#ifndef VBOX
649	fdctrl_t *fdctrl_init (int irq_lvl, int dma_chann, int mem_mapped,
650	uint32_t io_base,
651	BlockDriverState **fds)
652	{
653	fdctrl_t *fdctrl;
654	/* // int io_mem; */
655	int i;
656
657	FLOPPY_DPRINTF("init controller\n");
658	fdctrl = qemu_mallocz(sizeof(fdctrl_t));
659	if (!fdctrl)
660	return NULL;
661	fdctrl->result_timer = qemu_new_timer(vm_clock,
662	fdctrl_result_timer, fdctrl);
663
664	fdctrl->version = 0x90; /* Intel 82078 controller */
665	fdctrl->irq_lvl = irq_lvl;
666	fdctrl->dma_chann = dma_chann;
667	fdctrl->io_base = io_base;
668	fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
669	if (fdctrl->dma_chann != -1) {
670	fdctrl->dma_en = 1;
671	DMA_register_channel(dma_chann, &fdctrl_transfer_handler, fdctrl);
672	} else {
673	fdctrl->dma_en = 0;
674	}
675	for (i = 0; i < 2; i++) {
676	fd_init(&fdctrl->drives[i], fds[i]);
677	if (fds[i]) {
678	bdrv_set_change_cb(fds[i],
679	&fd_change_cb, &fdctrl->drives[i]);
680	}
681	}
682	fdctrl_reset(fdctrl, 0);
683	fdctrl->state = FD_CTRL_ACTIVE;
684	if (mem_mapped) {
685	FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
686	#if 0
687	io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
688	cpu_register_physical_memory(base, 0x08, io_mem);
689	#endif
690	} else {
691	register_ioport_read(io_base + 0x01, 5, 1, &fdctrl_read, fdctrl);
692	register_ioport_read(io_base + 0x07, 1, 1, &fdctrl_read, fdctrl);
693	register_ioport_write(io_base + 0x01, 5, 1, &fdctrl_write, fdctrl);
694	register_ioport_write(io_base + 0x07, 1, 1, &fdctrl_write, fdctrl);
695	}
696	for (i = 0; i < 2; i++) {
697	fd_revalidate(&fdctrl->drives[i]);
698	}
699
700	return fdctrl;
701	}
702
703	/* XXX: may change if moved to bdrv */
704	int fdctrl_get_drive_type(fdctrl_t *fdctrl, int drive_num)
705	{
706	return fdctrl->drives[drive_num].drive;
707	}
708	#endif
709
710	/* Change IRQ state */
711	static void fdctrl_reset_irq (fdctrl_t *fdctrl)
712	{
713	FLOPPY_DPRINTF("Reset interrupt\n");
714	#ifdef VBOX
715	PDMDevHlpISASetIrq (fdctrl->pDevIns, fdctrl->irq_lvl, 0);
716	#else
717	pic_set_irq(fdctrl->irq_lvl, 0);
718	#endif
719	fdctrl->state &= ~FD_CTRL_INTR;
720	}
721
722	static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status)
723	{
724	if (~(fdctrl->state & FD_CTRL_INTR)) {
725	#ifdef VBOX
726	PDMDevHlpISASetIrq (fdctrl->pDevIns, fdctrl->irq_lvl, 1);
727	#else
728	pic_set_irq(fdctrl->irq_lvl, 1);
729	#endif
730	fdctrl->state \|= FD_CTRL_INTR;
731	}
732	FLOPPY_DPRINTF("Set interrupt status to 0x%02x\n", status);
733	fdctrl->int_status = status;
734	}
735
736	/* Reset controller */
737	static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq)
738	{
739	int i;
740
741	FLOPPY_DPRINTF("reset controller\n");
742	fdctrl_reset_irq(fdctrl);
743	/* Initialise controller */
744	fdctrl->cur_drv = 0;
745	/* FIFO state */
746	fdctrl->data_pos = 0;
747	fdctrl->data_len = 0;
748	fdctrl->data_state = FD_STATE_CMD;
749	fdctrl->data_dir = FD_DIR_WRITE;
750	for (i = 0; i < MAX_FD; i++)
751	fd_reset(&fdctrl->drives[i]);
752	fdctrl_reset_fifo(fdctrl);
753	if (do_irq)
754	fdctrl_raise_irq(fdctrl, 0xc0);
755	}
756
757	static inline fdrive_t drv0 (fdctrl_t fdctrl)
758	{
759	return &fdctrl->drives[fdctrl->bootsel];
760	}
761
762	static inline fdrive_t drv1 (fdctrl_t fdctrl)
763	{
764	return &fdctrl->drives[1 - fdctrl->bootsel];
765	}
766
767	static fdrive_t get_cur_drv (fdctrl_t fdctrl)
768	{
769	return fdctrl->cur_drv == 0 ? drv0(fdctrl) : drv1(fdctrl);
770	}
771
772	/* Status B register : 0x01 (read-only) */
773	static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl)
774	{
775	FLOPPY_DPRINTF("status register: 0x00\n");
776	return 0;
777	}
778
779	/* Digital output register : 0x02 */
780	static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl)
781	{
782	uint32_t retval = 0;
783
784	/* Drive motors state indicators */
785	#ifndef VBOX
786	if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
787	retval \|= 1 << 5;
788	if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
789	retval \|= 1 << 4;
790	#else
791	/* bit4: 0 = drive 0 motor off/1 = on */
792	if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
793	retval \|= RT_BIT(4);
794	/* bit5: 0 = drive 1 motor off/1 = on */
795	if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
796	retval \|= RT_BIT(5);
797	#endif
798	/* DMA enable */
799	retval \|= fdctrl->dma_en << 3;
800	/* Reset indicator */
801	retval \|= (fdctrl->state & FD_CTRL_RESET) == 0 ? 0x04 : 0;
802	/* Selected drive */
803	retval \|= fdctrl->cur_drv;
804	FLOPPY_DPRINTF("digital output register: 0x%02x\n", retval);
805
806	return retval;
807	}
808
809	static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value)
810	{
811	/* Reset mode */
812	if (fdctrl->state & FD_CTRL_RESET) {
813	if (!(value & 0x04)) {
814	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
815	return;
816	}
817	}
818	FLOPPY_DPRINTF("digital output register set to 0x%02x\n", value);
819	/* Drive motors state indicators */
820	if (value & 0x20)
821	fd_start(drv1(fdctrl));
822	else
823	fd_stop(drv1(fdctrl));
824	if (value & 0x10)
825	fd_start(drv0(fdctrl));
826	else
827	fd_stop(drv0(fdctrl));
828	/* DMA enable */
829	#if 0
830	if (fdctrl->dma_chann != -1)
831	fdctrl->dma_en = 1 - ((value >> 3) & 1);
832	#endif
833	/* Reset */
834	if (!(value & 0x04)) {
835	if (!(fdctrl->state & FD_CTRL_RESET)) {
836	FLOPPY_DPRINTF("controller enter RESET state\n");
837	fdctrl->state \|= FD_CTRL_RESET;
838	}
839	} else {
840	if (fdctrl->state & FD_CTRL_RESET) {
841	FLOPPY_DPRINTF("controller out of RESET state\n");
842	fdctrl_reset(fdctrl, 1);
843	fdctrl->state &= ~(FD_CTRL_RESET \| FD_CTRL_SLEEP);
844	}
845	}
846	/* Selected drive */
847	fdctrl->cur_drv = value & 1;
848	}
849
850	/* Tape drive register : 0x03 */
851	static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl)
852	{
853	uint32_t retval = 0;
854
855	/* Disk boot selection indicator */
856	retval \|= fdctrl->bootsel << 2;
857	/* Tape indicators: never allowed */
858	FLOPPY_DPRINTF("tape drive register: 0x%02x\n", retval);
859
860	return retval;
861	}
862
863	static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value)
864	{
865	/* Reset mode */
866	if (fdctrl->state & FD_CTRL_RESET) {
867	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
868	return;
869	}
870	FLOPPY_DPRINTF("tape drive register set to 0x%02x\n", value);
871	/* Disk boot selection indicator */
872	fdctrl->bootsel = (value >> 2) & 1;
873	/* Tape indicators: never allow */
874	}
875
876	/* Main status register : 0x04 (read) */
877	static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl)
878	{
879	uint32_t retval = 0;
880
881	fdctrl->state &= ~(FD_CTRL_SLEEP \| FD_CTRL_RESET);
882	if (!(fdctrl->state & FD_CTRL_BUSY)) {
883	/* Data transfer allowed */
884	retval \|= 0x80;
885	/* Data transfer direction indicator */
886	if (fdctrl->data_dir == FD_DIR_READ)
887	retval \|= 0x40;
888	}
889	/* Should handle 0x20 for SPECIFY command */
890	/* Command busy indicator */
891	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA \|\|
892	FD_STATE(fdctrl->data_state) == FD_STATE_STATUS)
893	retval \|= 0x10;
894	FLOPPY_DPRINTF("main status register: 0x%02x\n", retval);
895
896	return retval;
897	}
898
899	/* Data select rate register : 0x04 (write) */
900	static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value)
901	{
902	/* Reset mode */
903	if (fdctrl->state & FD_CTRL_RESET) {
904	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
905	return;
906	}
907	FLOPPY_DPRINTF("select rate register set to 0x%02x\n", value);
908	/* Reset: autoclear */
909	if (value & 0x80) {
910	fdctrl->state \|= FD_CTRL_RESET;
911	fdctrl_reset(fdctrl, 1);
912	fdctrl->state &= ~FD_CTRL_RESET;
913	}
914	if (value & 0x40) {
915	fdctrl->state \|= FD_CTRL_SLEEP;
916	fdctrl_reset(fdctrl, 1);
917	}
918	/* // fdctrl.precomp = (value >> 2) & 0x07; */
919	}
920
921	/* Digital input register : 0x07 (read-only) */
922	static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl)
923	{
924	uint32_t retval = 0;
925
926	#ifndef VBOX
927	if (drv0(fdctrl)->drflags & FDRIVE_REVALIDATE \|\|
928	drv1(fdctrl)->drflags & FDRIVE_REVALIDATE)
929	#else
930	fdrive_t *cur_drv = get_cur_drv(fdctrl);
931	if ( drv0(fdctrl)->drflags & FDRIVE_REVALIDATE
932	\|\| drv1(fdctrl)->drflags & FDRIVE_REVALIDATE
933	\|\| !cur_drv->fMediaPresent)
934	#endif
935	retval \|= 0x80;
936	if (retval != 0)
937	FLOPPY_DPRINTF("Floppy digital input register: 0x%02x\n", retval);
938	drv0(fdctrl)->drflags &= ~FDRIVE_REVALIDATE;
939	drv1(fdctrl)->drflags &= ~FDRIVE_REVALIDATE;
940
941	return retval;
942	}
943
944	/* FIFO state control */
945	static void fdctrl_reset_fifo (fdctrl_t *fdctrl)
946	{
947	fdctrl->data_dir = FD_DIR_WRITE;
948	fdctrl->data_pos = 0;
949	FD_SET_STATE(fdctrl->data_state, FD_STATE_CMD);
950	}
951
952	/* Set FIFO status for the host to read */
953	static void fdctrl_set_fifo (fdctrl_t *fdctrl, int fifo_len, int do_irq)
954	{
955	fdctrl->data_dir = FD_DIR_READ;
956	fdctrl->data_len = fifo_len;
957	fdctrl->data_pos = 0;
958	FD_SET_STATE(fdctrl->data_state, FD_STATE_STATUS);
959	if (do_irq)
960	fdctrl_raise_irq(fdctrl, 0x00);
961	}
962
963	/* Set an error: unimplemented/unknown command */
964	static void fdctrl_unimplemented (fdctrl_t *fdctrl)
965	{
966	#if 0
967	fdrive_t *cur_drv;
968
969	cur_drv = get_cur_drv(fdctrl);
970	fdctrl->fifo[0] = 0x60 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
971	fdctrl->fifo[1] = 0x00;
972	fdctrl->fifo[2] = 0x00;
973	fdctrl_set_fifo(fdctrl, 3, 1);
974	#else
975	/* // fdctrl_reset_fifo(fdctrl); */
976	fdctrl->fifo[0] = 0x80;
977	fdctrl_set_fifo(fdctrl, 1, 0);
978	#endif
979	}
980
981	/* Callback for transfer end (stop or abort) */
982	static void fdctrl_stop_transfer (fdctrl_t *fdctrl, uint8_t status0,
983	uint8_t status1, uint8_t status2)
984	{
985	fdrive_t *cur_drv;
986
987	cur_drv = get_cur_drv(fdctrl);
988	FLOPPY_DPRINTF("transfer status: %02x %02x %02x (%02x)\n",
989	status0, status1, status2,
990	status0 \| (cur_drv->head << 2) \| fdctrl->cur_drv);
991	fdctrl->fifo[0] = status0 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
992	fdctrl->fifo[1] = status1;
993	fdctrl->fifo[2] = status2;
994	fdctrl->fifo[3] = cur_drv->track;
995	fdctrl->fifo[4] = cur_drv->head;
996	fdctrl->fifo[5] = cur_drv->sect;
997	fdctrl->fifo[6] = FD_SECTOR_SC;
998	fdctrl->data_dir = FD_DIR_READ;
999	if (fdctrl->state & FD_CTRL_BUSY) {
1000	#ifdef VBOX
1001	PDMDevHlpDMASetDREQ (fdctrl->pDevIns, fdctrl->dma_chann, 0);
1002	#else
1003	DMA_release_DREQ(fdctrl->dma_chann);
1004	#endif
1005	fdctrl->state &= ~FD_CTRL_BUSY;
1006	}
1007	fdctrl_set_fifo(fdctrl, 7, 1);
1008	}
1009
1010	/* Prepare a data transfer (either DMA or FIFO) */
1011	static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
1012	{
1013	fdrive_t *cur_drv;
1014	uint8_t kh, kt, ks;
1015	int did_seek;
1016
1017	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
1018	cur_drv = get_cur_drv(fdctrl);
1019	kt = fdctrl->fifo[2];
1020	kh = fdctrl->fifo[3];
1021	ks = fdctrl->fifo[4];
1022	FLOPPY_DPRINTF("Start transfer at %d %d %02x %02x (%d)\n",
1023	fdctrl->cur_drv, kh, kt, ks,
1024	_fd_sector(kh, kt, ks, cur_drv->last_sect));
1025	did_seek = 0;
1026	switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
1027	case 2:
1028	/* sect too big */
1029	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1030	fdctrl->fifo[3] = kt;
1031	fdctrl->fifo[4] = kh;
1032	fdctrl->fifo[5] = ks;
1033	return;
1034	case 3:
1035	/* track too big */
1036	fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
1037	fdctrl->fifo[3] = kt;
1038	fdctrl->fifo[4] = kh;
1039	fdctrl->fifo[5] = ks;
1040	return;
1041	case 4:
1042	/* No seek enabled */
1043	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1044	fdctrl->fifo[3] = kt;
1045	fdctrl->fifo[4] = kh;
1046	fdctrl->fifo[5] = ks;
1047	return;
1048	case 1:
1049	did_seek = 1;
1050	break;
1051	default:
1052	break;
1053	}
1054	/* Set the FIFO state */
1055	fdctrl->data_dir = direction;
1056	fdctrl->data_pos = 0;
1057	FD_SET_STATE(fdctrl->data_state, FD_STATE_DATA); /* FIFO ready for data */
1058	if (fdctrl->fifo[0] & 0x80)
1059	fdctrl->data_state \|= FD_STATE_MULTI;
1060	else
1061	fdctrl->data_state &= ~FD_STATE_MULTI;
1062	if (did_seek)
1063	fdctrl->data_state \|= FD_STATE_SEEK;
1064	else
1065	fdctrl->data_state &= ~FD_STATE_SEEK;
1066	if (fdctrl->fifo[5] == 00) {
1067	fdctrl->data_len = fdctrl->fifo[8];
1068	} else {
1069	int tmp;
1070	fdctrl->data_len = 128 << fdctrl->fifo[5];
1071	tmp = (cur_drv->last_sect - ks + 1);
1072	if (fdctrl->fifo[0] & 0x80)
1073	tmp += cur_drv->last_sect;
1074	fdctrl->data_len *= tmp;
1075	}
1076	fdctrl->eot = fdctrl->fifo[6];
1077	if (fdctrl->dma_en) {
1078	int dma_mode;
1079	/* DMA transfer are enabled. Check if DMA channel is well programmed */
1080	#ifndef VBOX
1081	dma_mode = DMA_get_channel_mode(fdctrl->dma_chann);
1082	#else
1083	dma_mode = PDMDevHlpDMAGetChannelMode (fdctrl->pDevIns, fdctrl->dma_chann);
1084	#endif
1085	dma_mode = (dma_mode >> 2) & 3;
1086	FLOPPY_DPRINTF("dma_mode=%d direction=%d (%d - %d)\n",
1087	dma_mode, direction,
1088	(128 << fdctrl->fifo[5]) *
1089	(cur_drv->last_sect - ks + 1), fdctrl->data_len);
1090	if (((direction == FD_DIR_SCANE \|\| direction == FD_DIR_SCANL \|\|
1091	direction == FD_DIR_SCANH) && dma_mode == 0) \|\|
1092	(direction == FD_DIR_WRITE && dma_mode == 2) \|\|
1093	(direction == FD_DIR_READ && dma_mode == 1)) {
1094	/* No access is allowed until DMA transfer has completed */
1095	fdctrl->state \|= FD_CTRL_BUSY;
1096	/* Now, we just have to wait for the DMA controller to
1097	* recall us...
1098	*/
1099	#ifndef VBOX
1100	DMA_hold_DREQ(fdctrl->dma_chann);
1101	DMA_schedule(fdctrl->dma_chann);
1102	#else
1103	PDMDevHlpDMASetDREQ (fdctrl->pDevIns, fdctrl->dma_chann, 1);
1104	PDMDevHlpDMASchedule (fdctrl->pDevIns);
1105	#endif
1106	return;
1107	} else {
1108	FLOPPY_ERROR("dma_mode=%d direction=%d\n", dma_mode, direction);
1109	}
1110	}
1111	FLOPPY_DPRINTF("start non-DMA transfer\n");
1112	/* IO based transfer: calculate len */
1113	fdctrl_raise_irq(fdctrl, 0x00);
1114
1115	return;
1116	}
1117
1118	/* Prepare a transfer of deleted data */
1119	static void fdctrl_start_transfer_del (fdctrl_t *fdctrl, int direction)
1120	{
1121	/* We don't handle deleted data,
1122	* so we don't return ANYTHING
1123	*/
1124	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1125	}
1126
1127	#if 0
1128	#include <stdio.h>
1129	#include <stdlib.h>
1130
1131	static FILE * f;
1132	static void dump (void *p, size_t len)
1133	{
1134	size_t n;
1135
1136	if (!f) {
1137	f = fopen ("dump", "wb");
1138	if (!f)
1139	exit (0);
1140	}
1141
1142	n = fwrite (p, len, 1, f);
1143	if (n != 1) {
1144	AssertMsgFailed (("failed to dump\n"));
1145	exit (0);
1146	}
1147	}
1148	#else
1149	#define dump(a,b) do { } while (0)
1150	#endif
1151
1152	/* handlers for DMA transfers */
1153	#ifdef VBOX
1154	static DECLCALLBACK(uint32_t) fdctrl_transfer_handler (PPDMDEVINS pDevIns,
1155	void *opaque,
1156	unsigned nchan,
1157	uint32_t dma_pos,
1158	uint32_t dma_len)
1159	#else
1160	static int fdctrl_transfer_handler (void *opaque, int nchan,
1161	int dma_pos, int dma_len)
1162	#endif
1163	{
1164	fdctrl_t *fdctrl;
1165	fdrive_t *cur_drv;
1166	#ifdef VBOX
1167	int rc;
1168	uint32_t len, start_pos, rel_pos;
1169	#else
1170	int len, start_pos, rel_pos;
1171	#endif
1172	uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
1173
1174	fdctrl = opaque;
1175	if (!(fdctrl->state & FD_CTRL_BUSY)) {
1176	FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
1177	return 0;
1178	}
1179	cur_drv = get_cur_drv(fdctrl);
1180	if (fdctrl->data_dir == FD_DIR_SCANE \|\| fdctrl->data_dir == FD_DIR_SCANL \|\|
1181	fdctrl->data_dir == FD_DIR_SCANH)
1182	status2 = 0x04;
1183	if (dma_len > fdctrl->data_len)
1184	dma_len = fdctrl->data_len;
1185	#ifndef VBOX
1186	if (cur_drv->bs == NULL) {
1187	#else /* !VBOX */
1188	if (cur_drv->pDrvBlock == NULL) {
1189	#endif
1190	if (fdctrl->data_dir == FD_DIR_WRITE)
1191	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1192	else
1193	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1194	len = 0;
1195	goto transfer_error;
1196	}
1197	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1198	for (start_pos = fdctrl->data_pos; fdctrl->data_pos < dma_len;) {
1199	len = dma_len - fdctrl->data_pos;
1200	if (len + rel_pos > FD_SECTOR_LEN)
1201	len = FD_SECTOR_LEN - rel_pos;
1202	FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x "
1203	"(%d-0x%08x 0x%08x)\n", len, dma_len, fdctrl->data_pos,
1204	fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
1205	cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
1206	fd_sector(cur_drv) * 512);
1207	if (fdctrl->data_dir != FD_DIR_WRITE \|\|
1208	len < FD_SECTOR_LEN \|\| rel_pos != 0) {
1209	/* READ & SCAN commands and realign to a sector for WRITE */
1210	#ifndef VBOX
1211	if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1212	fdctrl->fifo, 1) < 0) {
1213	FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
1214	fd_sector(cur_drv));
1215	/* Sure, image size is too small... */
1216	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1217	}
1218	#else
1219	cur_drv->Led.Asserted.s.fReading
1220	= cur_drv->Led.Actual.s.fReading = 1;
1221
1222	rc = cur_drv->pDrvBlock->pfnRead (
1223	cur_drv->pDrvBlock,
1224	fd_sector (cur_drv) * 512,
1225	fdctrl->fifo,
1226	1 * 512
1227	);
1228
1229	cur_drv->Led.Actual.s.fReading = 0;
1230
1231	if (RT_FAILURE (rc)) {
1232	AssertMsgFailed (
1233	("Floppy: error getting sector %d, rc = %Rrc",
1234	fd_sector (cur_drv), rc));
1235	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1236	}
1237	#endif
1238	}
1239	switch (fdctrl->data_dir) {
1240	case FD_DIR_READ:
1241	/* READ commands */
1242	#ifdef VBOX
1243	{
1244	uint32_t read;
1245	int rc = PDMDevHlpDMAWriteMemory(fdctrl->pDevIns, nchan,
1246	fdctrl->fifo + rel_pos,
1247	fdctrl->data_pos,
1248	len, &read);
1249	dump (fdctrl->fifo + rel_pos, len);
1250	AssertMsgRC (rc, ("DMAWriteMemory -> %Rrc\n", rc));
1251	}
1252	#else
1253	DMA_write_memory (nchan, fdctrl->fifo + rel_pos,
1254	fdctrl->data_pos, len);
1255	#endif
1256	/* cpu_physical_memory_write(addr + fdctrl->data_pos, */
1257	/* fdctrl->fifo + rel_pos, len); */
1258	break;
1259	case FD_DIR_WRITE:
1260	/* WRITE commands */
1261	#ifdef VBOX
1262	{
1263	uint32_t written;
1264	int rc = PDMDevHlpDMAReadMemory(fdctrl->pDevIns, nchan,
1265	fdctrl->fifo + rel_pos,
1266	fdctrl->data_pos,
1267	len, &written);
1268	AssertMsgRC (rc, ("DMAReadMemory -> %Rrc\n", rc));
1269	}
1270	#else
1271	DMA_read_memory (nchan, fdctrl->fifo + rel_pos,
1272	fdctrl->data_pos, len);
1273	#endif
1274	/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
1275	/* fdctrl->fifo + rel_pos, len); */
1276	#ifndef VBOX
1277	if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1278	fdctrl->fifo, 1) < 0) {
1279	FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
1280	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1281	goto transfer_error;
1282	}
1283	#else /* VBOX */
1284	cur_drv->Led.Asserted.s.fWriting
1285	= cur_drv->Led.Actual.s.fWriting = 1;
1286
1287	rc = cur_drv->pDrvBlock->pfnWrite (
1288	cur_drv->pDrvBlock,
1289	fd_sector (cur_drv) * 512,
1290	fdctrl->fifo,
1291	1 * 512
1292	);
1293
1294	cur_drv->Led.Actual.s.fWriting = 0;
1295
1296	if (RT_FAILURE (rc)) {
1297	AssertMsgFailed (("Floppy: error writing sector %d. rc=%Rrc",
1298	fd_sector (cur_drv), rc));
1299	fdctrl_stop_transfer (fdctrl, 0x60, 0x00, 0x00);
1300	goto transfer_error;
1301	}
1302	#endif
1303	break;
1304	default:
1305	/* SCAN commands */
1306	{
1307	uint8_t tmpbuf[FD_SECTOR_LEN];
1308	int ret;
1309	#ifdef VBOX
1310	int rc;
1311	uint32_t read;
1312
1313	rc = PDMDevHlpDMAReadMemory (fdctrl->pDevIns, nchan, tmpbuf,
1314	fdctrl->data_pos, len, &read);
1315	AssertMsg (RT_SUCCESS (rc), ("DMAReadMemory -> %Rrc\n", rc));
1316	#else
1317	DMA_read_memory (nchan, tmpbuf, fdctrl->data_pos, len);
1318	#endif
1319	/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
1320	/* tmpbuf, len); */
1321	ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
1322	if (ret == 0) {
1323	status2 = 0x08;
1324	goto end_transfer;
1325	}
1326	if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) \|\|
1327	(ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
1328	status2 = 0x00;
1329	goto end_transfer;
1330	}
1331	}
1332	break;
1333	}
1334	fdctrl->data_pos += len;
1335	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1336	if (rel_pos == 0) {
1337	/* Seek to next sector */
1338	FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
1339	cur_drv->head, cur_drv->track, cur_drv->sect,
1340	fd_sector(cur_drv),
1341	fdctrl->data_pos - len);
1342	/* XXX: cur_drv->sect >= cur_drv->last_sect should be an
1343	error in fact */
1344	if (cur_drv->sect >= cur_drv->last_sect \|\|
1345	cur_drv->sect == fdctrl->eot) {
1346	cur_drv->sect = 1;
1347	if (FD_MULTI_TRACK(fdctrl->data_state)) {
1348	if (cur_drv->head == 0 &&
1349	(cur_drv->flags & FDISK_DBL_SIDES) != 0) {
1350	cur_drv->head = 1;
1351	} else {
1352	cur_drv->head = 0;
1353	cur_drv->track++;
1354	if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
1355	break;
1356	}
1357	} else {
1358	cur_drv->track++;
1359	break;
1360	}
1361	FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
1362	cur_drv->head, cur_drv->track,
1363	cur_drv->sect, fd_sector(cur_drv));
1364	} else {
1365	cur_drv->sect++;
1366	}
1367	}
1368	}
1369	end_transfer:
1370	len = fdctrl->data_pos - start_pos;
1371	FLOPPY_DPRINTF("end transfer %d %d %d\n",
1372	fdctrl->data_pos, len, fdctrl->data_len);
1373	if (fdctrl->data_dir == FD_DIR_SCANE \|\|
1374	fdctrl->data_dir == FD_DIR_SCANL \|\|
1375	fdctrl->data_dir == FD_DIR_SCANH)
1376	status2 = 0x08;
1377	if (FD_DID_SEEK(fdctrl->data_state))
1378	status0 \|= 0x20;
1379	fdctrl->data_len -= len;
1380	/* if (fdctrl->data_len == 0) */
1381	fdctrl_stop_transfer(fdctrl, status0, status1, status2);
1382	transfer_error:
1383
1384	return len;
1385	}
1386
1387	#if 0
1388	{
1389	fdctrl_t *fdctrl;
1390	fdrive_t *cur_drv;
1391	int len, start_pos, rel_pos;
1392	uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
1393
1394	fdctrl = opaque;
1395	if (!(fdctrl->state & FD_CTRL_BUSY)) {
1396	FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
1397	return 0;
1398	}
1399	cur_drv = get_cur_drv(fdctrl);
1400	if (fdctrl->data_dir == FD_DIR_SCANE \|\| fdctrl->data_dir == FD_DIR_SCANL \|\|
1401	fdctrl->data_dir == FD_DIR_SCANH)
1402	status2 = 0x04;
1403	if (size > fdctrl->data_len)
1404	size = fdctrl->data_len;
1405	#ifndef VBOX
1406	if (cur_drv->bs == NULL) {
1407	#else
1408	if (cur_drv->pDrvBase == NULL) {
1409	#endif
1410	if (fdctrl->data_dir == FD_DIR_WRITE)
1411	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1412	else
1413	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1414	len = 0;
1415	goto transfer_error;
1416	}
1417	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1418	for (start_pos = fdctrl->data_pos; fdctrl->data_pos < size;) {
1419	len = size - fdctrl->data_pos;
1420	if (len + rel_pos > FD_SECTOR_LEN)
1421	len = FD_SECTOR_LEN - rel_pos;
1422	FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x %02x "
1423	"(%d-0x%08x 0x%08x)\n", len, size, fdctrl->data_pos,
1424	fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
1425	cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
1426	fd_sector(cur_drv) * 512, addr);
1427	if (fdctrl->data_dir != FD_DIR_WRITE \|\|
1428	len < FD_SECTOR_LEN \|\| rel_pos != 0) {
1429	/* READ & SCAN commands and realign to a sector for WRITE */
1430	#ifndef VBOX
1431	if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1432	fdctrl->fifo, 1) < 0) {
1433	FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
1434	fd_sector(cur_drv));
1435	/* Sure, image size is too small... */
1436	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1437	}
1438	#else
1439	int rc;
1440
1441	cur_drv->Led.Asserted.s.fReading
1442	= cur_drv->Led.Actual.s.fReading = 1;
1443
1444	rc = cur_drv->pDrvBlock->pfnRead (
1445	cur_drv->pDrvBlock,
1446	fd_sector (cur_drv) * 512,
1447	fdctrl->fifo,
1448	1 * 512
1449	);
1450
1451	cur_drv->Led.Actual.s.fReading = 0;
1452
1453	if (RT_FAILURE (rc)) {
1454	AssertMsgFailed (
1455	("Floppy: error getting sector %d. rc=%Rrc\n",
1456	fd_sector(cur_drv), rc));
1457	/* Sure, image size is too small... */
1458	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1459	}
1460	/* p_fd_activity = 1; /
1461	#endif
1462	}
1463	switch (fdctrl->data_dir) {
1464	case FD_DIR_READ:
1465	/* READ commands */
1466	#ifdef VBOX
1467	PDMDevHlpPhysWrite (fdctrl->pDevIns, addr + fdctrl->data_pos,
1468	fdctrl->fifo + rel_pos, len);
1469	#else
1470	cpu_physical_memory_write(addr + fdctrl->data_pos,
1471	fdctrl->fifo + rel_pos, len);
1472	#endif
1473	break;
1474	case FD_DIR_WRITE:
1475	/* WRITE commands */
1476	#ifdef VBOX
1477	{
1478	int rc;
1479
1480	PDMDevHlpPhysRead (fdctrl->pDevIns, addr + fdctrl->data_pos,
1481	fdctrl->fifo + rel_pos, len);
1482
1483	cur_drv->Led.Asserted.s.fWriting
1484	= cur_drv->Led.Actual.s.fWriting = 1;
1485
1486	rc = cur_drv->pDrvBlock->pfnWrite (
1487	cur_drv->pDrvBlock,
1488	fd_sector (cur_drv) * 512,
1489	fdctrl->fifo,
1490	1 * 512
1491	);
1492
1493	cur_drv->Led.Actual.s.fWriting = 0;
1494
1495	if (RT_FAILURE (rc)) {
1496	AssertMsgFailed (
1497	("Floppy: error writting sector %d. rc=%Rrc\n",
1498	fd_sector(cur_drv), rc));
1499	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1500	goto transfer_error;
1501	}
1502	}
1503	/* p_fd_activity = 2; /
1504	#else /* !VBOX */
1505	cpu_physical_memory_read(addr + fdctrl->data_pos,
1506	fdctrl->fifo + rel_pos, len);
1507	if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1508	fdctrl->fifo, 1) < 0) {
1509	FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
1510	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1511	goto transfer_error;
1512	}
1513	#endif
1514	break;
1515	default:
1516	/* SCAN commands */
1517	{
1518	uint8_t tmpbuf[FD_SECTOR_LEN];
1519	int ret;
1520	#ifdef VBOX
1521	PDMDevHlpPhysRead (fdctrl->pDevIns, addr + fdctrl->data_pos,
1522	tmpbuf, len);
1523	#else
1524	cpu_physical_memory_read(addr + fdctrl->data_pos,
1525	tmpbuf, len);
1526	#endif
1527	ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
1528	if (ret == 0) {
1529	status2 = 0x08;
1530	goto end_transfer;
1531	}
1532	if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) \|\|
1533	(ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
1534	status2 = 0x00;
1535	goto end_transfer;
1536	}
1537	}
1538	break;
1539	}
1540	fdctrl->data_pos += len;
1541	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1542	if (rel_pos == 0) {
1543	/* Seek to next sector */
1544	FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
1545	cur_drv->head, cur_drv->track, cur_drv->sect,
1546	fd_sector(cur_drv),
1547	fdctrl->data_pos - size);
1548	/* XXX: cur_drv->sect >= cur_drv->last_sect should be an
1549	error in fact */
1550	if (cur_drv->sect >= cur_drv->last_sect \|\|
1551	cur_drv->sect == fdctrl->eot) {
1552	cur_drv->sect = 1;
1553	if (FD_MULTI_TRACK(fdctrl->data_state)) {
1554	if (cur_drv->head == 0 &&
1555	(cur_drv->flags & FDISK_DBL_SIDES) != 0) {
1556	cur_drv->head = 1;
1557	} else {
1558	cur_drv->head = 0;
1559	cur_drv->track++;
1560	if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
1561	break;
1562	}
1563	} else {
1564	cur_drv->track++;
1565	break;
1566	}
1567	FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
1568	cur_drv->head, cur_drv->track,
1569	cur_drv->sect, fd_sector(cur_drv));
1570	} else {
1571	cur_drv->sect++;
1572	}
1573	}
1574	}
1575	end_transfer:
1576	len = fdctrl->data_pos - start_pos;
1577	FLOPPY_DPRINTF("end transfer %d %d %d\n",
1578	fdctrl->data_pos, len, fdctrl->data_len);
1579	if (fdctrl->data_dir == FD_DIR_SCANE \|\|
1580	fdctrl->data_dir == FD_DIR_SCANL \|\|
1581	fdctrl->data_dir == FD_DIR_SCANH)
1582	status2 = 0x08;
1583	if (FD_DID_SEEK(fdctrl->data_state))
1584	status0 \|= 0x20;
1585	fdctrl->data_len -= len;
1586	/* // if (fdctrl->data_len == 0) */
1587	fdctrl_stop_transfer(fdctrl, status0, status1, status2);
1588	transfer_error:
1589
1590	return len;
1591	}
1592	#endif
1593
1594	/* Data register : 0x05 */
1595	static uint32_t fdctrl_read_data (fdctrl_t *fdctrl)
1596	{
1597	fdrive_t *cur_drv;
1598	uint32_t retval = 0;
1599	unsigned pos, len;
1600	#ifdef VBOX
1601	int rc;
1602	#endif
1603
1604	cur_drv = get_cur_drv(fdctrl);
1605	fdctrl->state &= ~FD_CTRL_SLEEP;
1606	if (FD_STATE(fdctrl->data_state) == FD_STATE_CMD) {
1607	FLOPPY_ERROR("can't read data in CMD state\n");
1608	return 0;
1609	}
1610	pos = fdctrl->data_pos;
1611	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1612	pos %= FD_SECTOR_LEN;
1613	if (pos == 0) {
1614	len = fdctrl->data_len - fdctrl->data_pos;
1615	if (len > FD_SECTOR_LEN)
1616	len = FD_SECTOR_LEN;
1617	#ifdef VBOX
1618	cur_drv->Led.Asserted.s.fReading
1619	= cur_drv->Led.Actual.s.fReading = 1;
1620
1621	Assert(len <= sizeof(fdctrl->fifo));
1622	rc = cur_drv->pDrvBlock->pfnRead (
1623	cur_drv->pDrvBlock,
1624	fd_sector (cur_drv) * 512,
1625	fdctrl->fifo,
1626	len
1627	);
1628
1629	cur_drv->Led.Actual.s.fReading = 0;
1630
1631	if (RT_FAILURE (rc)) {
1632	AssertMsgFailed (
1633	("Floppy: Failure to read sector %d. rc=%Rrc",
1634	fd_sector (cur_drv), rc));
1635	}
1636	#else
1637	bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1638	fdctrl->fifo, len);
1639	#endif
1640	}
1641	}
1642	retval = fdctrl->fifo[pos];
1643	if (++fdctrl->data_pos == fdctrl->data_len) {
1644	fdctrl->data_pos = 0;
1645	/* Switch from transfer mode to status mode
1646	* then from status mode to command mode
1647	*/
1648	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1649	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1650	} else {
1651	fdctrl_reset_fifo(fdctrl);
1652	fdctrl_reset_irq(fdctrl);
1653	}
1654	}
1655	FLOPPY_DPRINTF("data register: 0x%02x\n", retval);
1656
1657	return retval;
1658	}
1659
1660	static void fdctrl_format_sector (fdctrl_t *fdctrl)
1661	{
1662	fdrive_t *cur_drv;
1663	uint8_t kh, kt, ks;
1664	int did_seek;
1665	#ifdef VBOX
1666	int ok = 0, rc;
1667	#endif
1668
1669	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
1670	cur_drv = get_cur_drv(fdctrl);
1671	kt = fdctrl->fifo[6];
1672	kh = fdctrl->fifo[7];
1673	ks = fdctrl->fifo[8];
1674	FLOPPY_DPRINTF("format sector at %d %d %02x %02x (%d)\n",
1675	fdctrl->cur_drv, kh, kt, ks,
1676	_fd_sector(kh, kt, ks, cur_drv->last_sect));
1677	did_seek = 0;
1678	switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
1679	case 2:
1680	/* sect too big */
1681	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1682	fdctrl->fifo[3] = kt;
1683	fdctrl->fifo[4] = kh;
1684	fdctrl->fifo[5] = ks;
1685	return;
1686	case 3:
1687	/* track too big */
1688	fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
1689	fdctrl->fifo[3] = kt;
1690	fdctrl->fifo[4] = kh;
1691	fdctrl->fifo[5] = ks;
1692	return;
1693	case 4:
1694	/* No seek enabled */
1695	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1696	fdctrl->fifo[3] = kt;
1697	fdctrl->fifo[4] = kh;
1698	fdctrl->fifo[5] = ks;
1699	return;
1700	case 1:
1701	did_seek = 1;
1702	fdctrl->data_state \|= FD_STATE_SEEK;
1703	break;
1704	default:
1705	break;
1706	}
1707	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1708	#ifdef VBOX
1709	/* p_fd_activity = 2; /
1710	if (cur_drv->pDrvBlock) {
1711	cur_drv->Led.Asserted.s.fWriting = cur_drv->Led.Actual.s.fWriting = 1;
1712
1713	rc = cur_drv->pDrvBlock->pfnWrite (
1714	cur_drv->pDrvBlock,
1715	fd_sector (cur_drv) * 512,
1716	fdctrl->fifo,
1717	1 * 512
1718	);
1719
1720	cur_drv->Led.Actual.s.fWriting = 0;
1721
1722	if (RT_FAILURE (rc)) {
1723	AssertMsgFailed (("Floppy: error formating sector %d. rc=%Rrc\n",
1724	fd_sector (cur_drv), rc));
1725	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1726	}
1727	else {
1728	ok = 1;
1729	}
1730	}
1731	if (ok) {
1732	#else
1733	if (cur_drv->bs == NULL \|\|
1734	bdrv_write(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
1735	FLOPPY_ERROR("formating sector %d\n", fd_sector(cur_drv));
1736	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1737	} else {
1738	#endif
1739	if (cur_drv->sect == cur_drv->last_sect) {
1740	fdctrl->data_state &= ~FD_STATE_FORMAT;
1741	/* Last sector done */
1742	if (FD_DID_SEEK(fdctrl->data_state))
1743	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1744	else
1745	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
1746	} else {
1747	/* More to do */
1748	fdctrl->data_pos = 0;
1749	fdctrl->data_len = 4;
1750	}
1751	}
1752	}
1753
1754	static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
1755	{
1756	fdrive_t *cur_drv;
1757
1758	cur_drv = get_cur_drv(fdctrl);
1759	/* Reset mode */
1760	if (fdctrl->state & FD_CTRL_RESET) {
1761	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
1762	return;
1763	}
1764	fdctrl->state &= ~FD_CTRL_SLEEP;
1765	if (FD_STATE(fdctrl->data_state) == FD_STATE_STATUS) {
1766	FLOPPY_ERROR("can't write data in status mode\n");
1767	return;
1768	}
1769	/* Is it write command time ? */
1770	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1771	/* FIFO data write */
1772	fdctrl->fifo[fdctrl->data_pos++] = value;
1773	if (fdctrl->data_pos % FD_SECTOR_LEN == (FD_SECTOR_LEN - 1) \|\|
1774	fdctrl->data_pos == fdctrl->data_len) {
1775	#ifdef VBOX
1776	int rc;
1777	/* p_fd_activity = 2; /
1778	cur_drv->Led.Asserted.s.fWriting
1779	= cur_drv->Led.Actual.s.fWriting = 1;
1780
1781	rc = cur_drv->pDrvBlock->pfnWrite (
1782	cur_drv->pDrvBlock,
1783	fd_sector (cur_drv) * 512,
1784	fdctrl->fifo,
1785	FD_SECTOR_LEN
1786	);
1787
1788	cur_drv->Led.Actual.s.fWriting = 0;
1789
1790	if (RT_FAILURE (rc)) {
1791	AssertMsgFailed (
1792	("Floppy: failed to write sector %d. rc=%Rrc\n",
1793	fd_sector (cur_drv), rc));
1794	}
1795	#else
1796	bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1797	fdctrl->fifo, FD_SECTOR_LEN);
1798	#endif
1799	}
1800	/* Switch from transfer mode to status mode
1801	* then from status mode to command mode
1802	*/
1803	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA)
1804	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1805	return;
1806	}
1807	if (fdctrl->data_pos == 0) {
1808	/* Command */
1809	switch (value & 0x5F) {
1810	case 0x46:
1811	/* READ variants */
1812	FLOPPY_DPRINTF("READ command\n");
1813	/* 8 parameters cmd */
1814	fdctrl->data_len = 9;
1815	goto enqueue;
1816	case 0x4C:
1817	/* READ_DELETED variants */
1818	FLOPPY_DPRINTF("READ_DELETED command\n");
1819	/* 8 parameters cmd */
1820	fdctrl->data_len = 9;
1821	goto enqueue;
1822	case 0x50:
1823	/* SCAN_EQUAL variants */
1824	FLOPPY_DPRINTF("SCAN_EQUAL command\n");
1825	/* 8 parameters cmd */
1826	fdctrl->data_len = 9;
1827	goto enqueue;
1828	case 0x56:
1829	/* VERIFY variants */
1830	FLOPPY_DPRINTF("VERIFY command\n");
1831	/* 8 parameters cmd */
1832	fdctrl->data_len = 9;
1833	goto enqueue;
1834	case 0x59:
1835	/* SCAN_LOW_OR_EQUAL variants */
1836	FLOPPY_DPRINTF("SCAN_LOW_OR_EQUAL command\n");
1837	/* 8 parameters cmd */
1838	fdctrl->data_len = 9;
1839	goto enqueue;
1840	case 0x5D:
1841	/* SCAN_HIGH_OR_EQUAL variants */
1842	FLOPPY_DPRINTF("SCAN_HIGH_OR_EQUAL command\n");
1843	/* 8 parameters cmd */
1844	fdctrl->data_len = 9;
1845	goto enqueue;
1846	default:
1847	break;
1848	}
1849	switch (value & 0x7F) {
1850	case 0x45:
1851	/* WRITE variants */
1852	FLOPPY_DPRINTF("WRITE command\n");
1853	/* 8 parameters cmd */
1854	fdctrl->data_len = 9;
1855	goto enqueue;
1856	case 0x49:
1857	/* WRITE_DELETED variants */
1858	FLOPPY_DPRINTF("WRITE_DELETED command\n");
1859	/* 8 parameters cmd */
1860	fdctrl->data_len = 9;
1861	goto enqueue;
1862	default:
1863	break;
1864	}
1865	switch (value) {
1866	case 0x03:
1867	/* SPECIFY */
1868	FLOPPY_DPRINTF("SPECIFY command\n");
1869	/* 1 parameter cmd */
1870	fdctrl->data_len = 3;
1871	goto enqueue;
1872	case 0x04:
1873	/* SENSE_DRIVE_STATUS */
1874	FLOPPY_DPRINTF("SENSE_DRIVE_STATUS command\n");
1875	/* 1 parameter cmd */
1876	fdctrl->data_len = 2;
1877	goto enqueue;
1878	case 0x07:
1879	/* RECALIBRATE */
1880	FLOPPY_DPRINTF("RECALIBRATE command\n");
1881	/* 1 parameter cmd */
1882	fdctrl->data_len = 2;
1883	goto enqueue;
1884	case 0x08:
1885	/* SENSE_INTERRUPT_STATUS */
1886	FLOPPY_DPRINTF("SENSE_INTERRUPT_STATUS command (%02x)\n",
1887	fdctrl->int_status);
1888	/* No parameters cmd: returns status if no interrupt */
1889	#if 0
1890	fdctrl->fifo[0] =
1891	fdctrl->int_status \| (cur_drv->head << 2) \| fdctrl->cur_drv;
1892	#else
1893	/* XXX: int_status handling is broken for read/write
1894	commands, so we do this hack. It should be suppressed
1895	ASAP */
1896	fdctrl->fifo[0] =
1897	0x20 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
1898	#endif
1899	fdctrl->fifo[1] = cur_drv->track;
1900	fdctrl_set_fifo(fdctrl, 2, 0);
1901	fdctrl_reset_irq(fdctrl);
1902	fdctrl->int_status = 0xC0;
1903	return;
1904	case 0x0E:
1905	/* DUMPREG */
1906	FLOPPY_DPRINTF("DUMPREG command\n");
1907	/* Drives position */
1908	fdctrl->fifo[0] = drv0(fdctrl)->track;
1909	fdctrl->fifo[1] = drv1(fdctrl)->track;
1910	fdctrl->fifo[2] = 0;
1911	fdctrl->fifo[3] = 0;
1912	/* timers */
1913	fdctrl->fifo[4] = fdctrl->timer0;
1914	fdctrl->fifo[5] = (fdctrl->timer1 << 1) \| fdctrl->dma_en;
1915	fdctrl->fifo[6] = cur_drv->last_sect;
1916	fdctrl->fifo[7] = (fdctrl->lock << 7) \|
1917	(cur_drv->perpendicular << 2);
1918	fdctrl->fifo[8] = fdctrl->config;
1919	fdctrl->fifo[9] = fdctrl->precomp_trk;
1920	fdctrl_set_fifo(fdctrl, 10, 0);
1921	return;
1922	case 0x0F:
1923	/* SEEK */
1924	FLOPPY_DPRINTF("SEEK command\n");
1925	/* 2 parameters cmd */
1926	fdctrl->data_len = 3;
1927	goto enqueue;
1928	case 0x10:
1929	/* VERSION */
1930	FLOPPY_DPRINTF("VERSION command\n");
1931	/* No parameters cmd */
1932	/* Controller's version */
1933	fdctrl->fifo[0] = fdctrl->version;
1934	fdctrl_set_fifo(fdctrl, 1, 1);
1935	return;
1936	case 0x12:
1937	/* PERPENDICULAR_MODE */
1938	FLOPPY_DPRINTF("PERPENDICULAR_MODE command\n");
1939	/* 1 parameter cmd */
1940	fdctrl->data_len = 2;
1941	goto enqueue;
1942	case 0x13:
1943	/* CONFIGURE */
1944	FLOPPY_DPRINTF("CONFIGURE command\n");
1945	/* 3 parameters cmd */
1946	fdctrl->data_len = 4;
1947	goto enqueue;
1948	case 0x14:
1949	/* UNLOCK */
1950	FLOPPY_DPRINTF("UNLOCK command\n");
1951	/* No parameters cmd */
1952	fdctrl->lock = 0;
1953	fdctrl->fifo[0] = 0;
1954	fdctrl_set_fifo(fdctrl, 1, 0);
1955	return;
1956	case 0x17:
1957	/* POWERDOWN_MODE */
1958	FLOPPY_DPRINTF("POWERDOWN_MODE command\n");
1959	/* 2 parameters cmd */
1960	fdctrl->data_len = 3;
1961	goto enqueue;
1962	case 0x18:
1963	/* PART_ID */
1964	FLOPPY_DPRINTF("PART_ID command\n");
1965	/* No parameters cmd */
1966	fdctrl->fifo[0] = 0x41; /* Stepping 1 */
1967	fdctrl_set_fifo(fdctrl, 1, 0);
1968	return;
1969	case 0x2C:
1970	/* SAVE */
1971	FLOPPY_DPRINTF("SAVE command\n");
1972	/* No parameters cmd */
1973	fdctrl->fifo[0] = 0;
1974	fdctrl->fifo[1] = 0;
1975	/* Drives position */
1976	fdctrl->fifo[2] = drv0(fdctrl)->track;
1977	fdctrl->fifo[3] = drv1(fdctrl)->track;
1978	fdctrl->fifo[4] = 0;
1979	fdctrl->fifo[5] = 0;
1980	/* timers */
1981	fdctrl->fifo[6] = fdctrl->timer0;
1982	fdctrl->fifo[7] = fdctrl->timer1;
1983	fdctrl->fifo[8] = cur_drv->last_sect;
1984	fdctrl->fifo[9] = (fdctrl->lock << 7) \|
1985	(cur_drv->perpendicular << 2);
1986	fdctrl->fifo[10] = fdctrl->config;
1987	fdctrl->fifo[11] = fdctrl->precomp_trk;
1988	fdctrl->fifo[12] = fdctrl->pwrd;
1989	fdctrl->fifo[13] = 0;
1990	fdctrl->fifo[14] = 0;
1991	fdctrl_set_fifo(fdctrl, 15, 1);
1992	return;
1993	case 0x33:
1994	/* OPTION */
1995	FLOPPY_DPRINTF("OPTION command\n");
1996	/* 1 parameter cmd */
1997	fdctrl->data_len = 2;
1998	goto enqueue;
1999	case 0x42:
2000	/* READ_TRACK */
2001	FLOPPY_DPRINTF("READ_TRACK command\n");
2002	/* 8 parameters cmd */
2003	fdctrl->data_len = 9;
2004	goto enqueue;
2005	case 0x4A:
2006	/* READ_ID */
2007	FLOPPY_DPRINTF("READ_ID command\n");
2008	/* 1 parameter cmd */
2009	fdctrl->data_len = 2;
2010	goto enqueue;
2011	case 0x4C:
2012	/* RESTORE */
2013	FLOPPY_DPRINTF("RESTORE command\n");
2014	/* 17 parameters cmd */
2015	fdctrl->data_len = 18;
2016	goto enqueue;
2017	case 0x4D:
2018	/* FORMAT_TRACK */
2019	FLOPPY_DPRINTF("FORMAT_TRACK command\n");
2020	/* 5 parameters cmd */
2021	fdctrl->data_len = 6;
2022	goto enqueue;
2023	case 0x8E:
2024	/* DRIVE_SPECIFICATION_COMMAND */
2025	FLOPPY_DPRINTF("DRIVE_SPECIFICATION_COMMAND command\n");
2026	/* 5 parameters cmd */
2027	fdctrl->data_len = 6;
2028	goto enqueue;
2029	case 0x8F:
2030	/* RELATIVE_SEEK_OUT */
2031	FLOPPY_DPRINTF("RELATIVE_SEEK_OUT command\n");
2032	/* 2 parameters cmd */
2033	fdctrl->data_len = 3;
2034	goto enqueue;
2035	case 0x94:
2036	/* LOCK */
2037	FLOPPY_DPRINTF("LOCK command\n");
2038	/* No parameters cmd */
2039	fdctrl->lock = 1;
2040	fdctrl->fifo[0] = 0x10;
2041	fdctrl_set_fifo(fdctrl, 1, 1);
2042	return;
2043	case 0xCD:
2044	/* FORMAT_AND_WRITE */
2045	FLOPPY_DPRINTF("FORMAT_AND_WRITE command\n");
2046	/* 10 parameters cmd */
2047	fdctrl->data_len = 11;
2048	goto enqueue;
2049	case 0xCF:
2050	/* RELATIVE_SEEK_IN */
2051	FLOPPY_DPRINTF("RELATIVE_SEEK_IN command\n");
2052	/* 2 parameters cmd */
2053	fdctrl->data_len = 3;
2054	goto enqueue;
2055	default:
2056	/* Unknown command */
2057	FLOPPY_ERROR("unknown command: 0x%02x\n", value);
2058	fdctrl_unimplemented(fdctrl);
2059	return;
2060	}
2061	}
2062	enqueue:
2063	FLOPPY_DPRINTF("%s: %02x\n", __func__, value);
2064	fdctrl->fifo[fdctrl->data_pos] = value;
2065	if (++fdctrl->data_pos == fdctrl->data_len) {
2066	/* We now have all parameters
2067	* and will be able to treat the command
2068	*/
2069	if (fdctrl->data_state & FD_STATE_FORMAT) {
2070	fdctrl_format_sector(fdctrl);
2071	return;
2072	}
2073	switch (fdctrl->fifo[0] & 0x1F) {
2074	case 0x06:
2075	{
2076	/* READ variants */
2077	FLOPPY_DPRINTF("treat READ command\n");
2078	fdctrl_start_transfer(fdctrl, FD_DIR_READ);
2079	return;
2080	}
2081	case 0x0C:
2082	/* READ_DELETED variants */
2083	/* // FLOPPY_DPRINTF("treat READ_DELETED command\n"); */
2084	FLOPPY_ERROR("treat READ_DELETED command\n");
2085	fdctrl_start_transfer_del(fdctrl, FD_DIR_READ);
2086	return;
2087	case 0x16:
2088	/* VERIFY variants */
2089	/* // FLOPPY_DPRINTF("treat VERIFY command\n"); */
2090	FLOPPY_ERROR("treat VERIFY command\n");
2091	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
2092	return;
2093	case 0x10:
2094	/* SCAN_EQUAL variants */
2095	/* // FLOPPY_DPRINTF("treat SCAN_EQUAL command\n"); */
2096	FLOPPY_ERROR("treat SCAN_EQUAL command\n");
2097	fdctrl_start_transfer(fdctrl, FD_DIR_SCANE);
2098	return;
2099	case 0x19:
2100	/* SCAN_LOW_OR_EQUAL variants */
2101	/* // FLOPPY_DPRINTF("treat SCAN_LOW_OR_EQUAL command\n"); */
2102	FLOPPY_ERROR("treat SCAN_LOW_OR_EQUAL command\n");
2103	fdctrl_start_transfer(fdctrl, FD_DIR_SCANL);
2104	return;
2105	case 0x1D:
2106	/* SCAN_HIGH_OR_EQUAL variants */
2107	/* // FLOPPY_DPRINTF("treat SCAN_HIGH_OR_EQUAL command\n"); */
2108	FLOPPY_ERROR("treat SCAN_HIGH_OR_EQUAL command\n");
2109	fdctrl_start_transfer(fdctrl, FD_DIR_SCANH);
2110	return;
2111	default:
2112	break;
2113	}
2114	switch (fdctrl->fifo[0] & 0x3F) {
2115	case 0x05:
2116	/* WRITE variants */
2117	FLOPPY_DPRINTF("treat WRITE command (%02x)\n", fdctrl->fifo[0]);
2118	fdctrl_start_transfer(fdctrl, FD_DIR_WRITE);
2119	return;
2120	case 0x09:
2121	/* WRITE_DELETED variants */
2122	/* // FLOPPY_DPRINTF("treat WRITE_DELETED command\n"); */
2123	FLOPPY_ERROR("treat WRITE_DELETED command\n");
2124	fdctrl_start_transfer_del(fdctrl, FD_DIR_WRITE);
2125	return;
2126	default:
2127	break;
2128	}
2129	switch (fdctrl->fifo[0]) {
2130	case 0x03:
2131	/* SPECIFY */
2132	FLOPPY_DPRINTF("treat SPECIFY command\n");
2133	fdctrl->timer0 = (fdctrl->fifo[1] >> 4) & 0xF;
2134	fdctrl->timer1 = fdctrl->fifo[2] >> 1;
2135	fdctrl->dma_en = 1 - (fdctrl->fifo[2] & 1) ;
2136	/* No result back */
2137	fdctrl_reset_fifo(fdctrl);
2138	break;
2139	case 0x04:
2140	/* SENSE_DRIVE_STATUS */
2141	FLOPPY_DPRINTF("treat SENSE_DRIVE_STATUS command\n");
2142	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2143	cur_drv = get_cur_drv(fdctrl);
2144	cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
2145	/* 1 Byte status back */
2146	fdctrl->fifo[0] = (cur_drv->ro << 6) \|
2147	(cur_drv->track == 0 ? 0x10 : 0x00) \|
2148	(cur_drv->head << 2) \|
2149	fdctrl->cur_drv \|
2150	0x28;
2151	fdctrl_set_fifo(fdctrl, 1, 0);
2152	break;
2153	case 0x07:
2154	/* RECALIBRATE */
2155	FLOPPY_DPRINTF("treat RECALIBRATE command\n");
2156	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2157	cur_drv = get_cur_drv(fdctrl);
2158	fd_recalibrate(cur_drv);
2159	fdctrl_reset_fifo(fdctrl);
2160	/* Raise Interrupt */
2161	fdctrl_raise_irq(fdctrl, 0x20);
2162	break;
2163	case 0x0F:
2164	/* SEEK */
2165	FLOPPY_DPRINTF("treat SEEK command\n");
2166	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2167	cur_drv = get_cur_drv(fdctrl);
2168	fd_start(cur_drv);
2169	if (fdctrl->fifo[2] <= cur_drv->track)
2170	cur_drv->dir = 1;
2171	else
2172	cur_drv->dir = 0;
2173	fdctrl_reset_fifo(fdctrl);
2174	#ifndef VBOX
2175	if (fdctrl->fifo[2] > cur_drv->max_track) {
2176	#else
2177	if ( fdctrl->fifo[2] > cur_drv->max_track
2178	&& cur_drv->fMediaPresent) {
2179	#endif
2180	fdctrl_raise_irq(fdctrl, 0x60);
2181	} else {
2182	cur_drv->track = fdctrl->fifo[2];
2183	/* Raise Interrupt */
2184	fdctrl_raise_irq(fdctrl, 0x20);
2185	}
2186	break;
2187	case 0x12:
2188	/* PERPENDICULAR_MODE */
2189	FLOPPY_DPRINTF("treat PERPENDICULAR_MODE command\n");
2190	if (fdctrl->fifo[1] & 0x80)
2191	cur_drv->perpendicular = fdctrl->fifo[1] & 0x7;
2192	/* No result back */
2193	fdctrl_reset_fifo(fdctrl);
2194	break;
2195	case 0x13:
2196	/* CONFIGURE */
2197	FLOPPY_DPRINTF("treat CONFIGURE command\n");
2198	fdctrl->config = fdctrl->fifo[2];
2199	fdctrl->precomp_trk = fdctrl->fifo[3];
2200	/* No result back */
2201	fdctrl_reset_fifo(fdctrl);
2202	break;
2203	case 0x17:
2204	/* POWERDOWN_MODE */
2205	FLOPPY_DPRINTF("treat POWERDOWN_MODE command\n");
2206	fdctrl->pwrd = fdctrl->fifo[1];
2207	fdctrl->fifo[0] = fdctrl->fifo[1];
2208	fdctrl_set_fifo(fdctrl, 1, 1);
2209	break;
2210	case 0x33:
2211	/* OPTION */
2212	FLOPPY_DPRINTF("treat OPTION command\n");
2213	/* No result back */
2214	fdctrl_reset_fifo(fdctrl);
2215	break;
2216	case 0x42:
2217	/* READ_TRACK */
2218	/* // FLOPPY_DPRINTF("treat READ_TRACK command\n"); */
2219	FLOPPY_ERROR("treat READ_TRACK command\n");
2220	fdctrl_start_transfer(fdctrl, FD_DIR_READ);
2221	break;
2222	case 0x4A:
2223	/* READ_ID */
2224	FLOPPY_DPRINTF("treat READ_ID command\n");
2225	/* XXX: should set main status register to busy */
2226	cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
2227	#ifdef VBOX
2228	TMTimerSetMillies(fdctrl->result_timer, 1000 / 50);
2229	#else
2230	qemu_mod_timer(fdctrl->result_timer,
2231	qemu_get_clock(vm_clock) + (ticks_per_sec / 50));
2232	#endif
2233	break;
2234	case 0x4C:
2235	/* RESTORE */
2236	FLOPPY_DPRINTF("treat RESTORE command\n");
2237	/* Drives position */
2238	drv0(fdctrl)->track = fdctrl->fifo[3];
2239	drv1(fdctrl)->track = fdctrl->fifo[4];
2240	/* timers */
2241	fdctrl->timer0 = fdctrl->fifo[7];
2242	fdctrl->timer1 = fdctrl->fifo[8];
2243	cur_drv->last_sect = fdctrl->fifo[9];
2244	fdctrl->lock = fdctrl->fifo[10] >> 7;
2245	cur_drv->perpendicular = (fdctrl->fifo[10] >> 2) & 0xF;
2246	fdctrl->config = fdctrl->fifo[11];
2247	fdctrl->precomp_trk = fdctrl->fifo[12];
2248	fdctrl->pwrd = fdctrl->fifo[13];
2249	fdctrl_reset_fifo(fdctrl);
2250	break;
2251	case 0x4D:
2252	/* FORMAT_TRACK */
2253	FLOPPY_DPRINTF("treat FORMAT_TRACK command\n");
2254	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2255	cur_drv = get_cur_drv(fdctrl);
2256	fdctrl->data_state \|= FD_STATE_FORMAT;
2257	if (fdctrl->fifo[0] & 0x80)
2258	fdctrl->data_state \|= FD_STATE_MULTI;
2259	else
2260	fdctrl->data_state &= ~FD_STATE_MULTI;
2261	fdctrl->data_state &= ~FD_STATE_SEEK;
2262	cur_drv->bps =
2263	fdctrl->fifo[2] > 7 ? 16384 : 128 << fdctrl->fifo[2];
2264	#if 0
2265	cur_drv->last_sect =
2266	cur_drv->flags & FDISK_DBL_SIDES ? fdctrl->fifo[3] :
2267	fdctrl->fifo[3] / 2;
2268	#else
2269	cur_drv->last_sect = fdctrl->fifo[3];
2270	#endif
2271	/* Bochs BIOS is buggy and don't send format informations
2272	* for each sector. So, pretend all's done right now...
2273	*/
2274	fdctrl->data_state &= ~FD_STATE_FORMAT;
2275	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
2276	break;
2277	case 0x8E:
2278	/* DRIVE_SPECIFICATION_COMMAND */
2279	FLOPPY_DPRINTF("treat DRIVE_SPECIFICATION_COMMAND command\n");
2280	if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x80) {
2281	/* Command parameters done */
2282	if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x40) {
2283	fdctrl->fifo[0] = fdctrl->fifo[1];
2284	fdctrl->fifo[2] = 0;
2285	fdctrl->fifo[3] = 0;
2286	fdctrl_set_fifo(fdctrl, 4, 1);
2287	} else {
2288	fdctrl_reset_fifo(fdctrl);
2289	}
2290	} else if (fdctrl->data_len > 7) {
2291	/* ERROR */
2292	fdctrl->fifo[0] = 0x80 \|
2293	(cur_drv->head << 2) \| fdctrl->cur_drv;
2294	fdctrl_set_fifo(fdctrl, 1, 1);
2295	}
2296	break;
2297	case 0x8F:
2298	/* RELATIVE_SEEK_OUT */
2299	FLOPPY_DPRINTF("treat RELATIVE_SEEK_OUT command\n");
2300	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2301	cur_drv = get_cur_drv(fdctrl);
2302	fd_start(cur_drv);
2303	cur_drv->dir = 0;
2304	if (fdctrl->fifo[2] + cur_drv->track >= cur_drv->max_track) {
2305	cur_drv->track = cur_drv->max_track - 1;
2306	} else {
2307	cur_drv->track += fdctrl->fifo[2];
2308	}
2309	fdctrl_reset_fifo(fdctrl);
2310	fdctrl_raise_irq(fdctrl, 0x20);
2311	break;
2312	case 0xCD:
2313	/* FORMAT_AND_WRITE */
2314	/* // FLOPPY_DPRINTF("treat FORMAT_AND_WRITE command\n"); */
2315	FLOPPY_ERROR("treat FORMAT_AND_WRITE command\n");
2316	fdctrl_unimplemented(fdctrl);
2317	break;
2318	case 0xCF:
2319	/* RELATIVE_SEEK_IN */
2320	FLOPPY_DPRINTF("treat RELATIVE_SEEK_IN command\n");
2321	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2322	cur_drv = get_cur_drv(fdctrl);
2323	fd_start(cur_drv);
2324	cur_drv->dir = 1;
2325	if (fdctrl->fifo[2] > cur_drv->track) {
2326	cur_drv->track = 0;
2327	} else {
2328	cur_drv->track -= fdctrl->fifo[2];
2329	}
2330	fdctrl_reset_fifo(fdctrl);
2331	/* Raise Interrupt */
2332	fdctrl_raise_irq(fdctrl, 0x20);
2333	break;
2334	}
2335	}
2336	}
2337
2338	static void fdctrl_result_timer(void *opaque)
2339	{
2340	fdctrl_t *fdctrl = opaque;
2341	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
2342	}
2343
2344
2345	#ifdef VBOX
2346	static DECLCALLBACK(void) fdc_timer (PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
2347	{
2348	fdctrl_t fdctrl = (fdctrl_t )pvUser;
2349	fdctrl_result_timer (fdctrl);
2350	}
2351
2352	static DECLCALLBACK(int) fdc_io_write (PPDMDEVINS pDevIns,
2353	void *pvUser,
2354	RTIOPORT Port,
2355	uint32_t u32,
2356	unsigned cb)
2357	{
2358	if (cb == 1) {
2359	fdctrl_write (pvUser, Port, u32);
2360	}
2361	else {
2362	AssertMsgFailed(("Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
2363	}
2364	return VINF_SUCCESS;
2365	}
2366
2367	static DECLCALLBACK(int) fdc_io_read (PPDMDEVINS pDevIns,
2368	void *pvUser,
2369	RTIOPORT Port,
2370	uint32_t *pu32,
2371	unsigned cb)
2372	{
2373	if (cb == 1) {
2374	*pu32 = fdctrl_read (pvUser, Port);
2375	return VINF_SUCCESS;
2376	}
2377	else {
2378	return VERR_IOM_IOPORT_UNUSED;
2379	}
2380	}
2381
2382	static DECLCALLBACK(int) SaveExec (PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
2383	{
2384	fdctrl_t s = PDMINS_2_DATA (pDevIns, fdctrl_t );
2385	QEMUFile *f = pSSMHandle;
2386	unsigned int i;
2387
2388	qemu_put_8s (f, &s->version);
2389	qemu_put_8s (f, &s->irq_lvl);
2390	qemu_put_8s (f, &s->dma_chann);
2391	qemu_put_be32s (f, &s->io_base);
2392	qemu_put_8s (f, &s->state);
2393	qemu_put_8s (f, &s->dma_en);
2394	qemu_put_8s (f, &s->cur_drv);
2395	qemu_put_8s (f, &s->bootsel);
2396	qemu_put_buffer (f, s->fifo, FD_SECTOR_LEN);
2397	qemu_put_be32s (f, &s->data_pos);
2398	qemu_put_be32s (f, &s->data_len);
2399	qemu_put_8s (f, &s->data_state);
2400	qemu_put_8s (f, &s->data_dir);
2401	qemu_put_8s (f, &s->int_status);
2402	qemu_put_8s (f, &s->eot);
2403	qemu_put_8s (f, &s->timer0);
2404	qemu_put_8s (f, &s->timer1);
2405	qemu_put_8s (f, &s->precomp_trk);
2406	qemu_put_8s (f, &s->config);
2407	qemu_put_8s (f, &s->lock);
2408	qemu_put_8s (f, &s->pwrd);
2409
2410	for (i = 0; i < sizeof (s->drives) / sizeof (s->drives[0]); ++i) {
2411	fdrive_t *d = &s->drives[i];
2412
2413	SSMR3PutMem (pSSMHandle, &d->Led, sizeof (d->Led));
2414	qemu_put_be32s (f, &d->drive);
2415	qemu_put_be32s (f, &d->drflags);
2416	qemu_put_8s (f, &d->perpendicular);
2417	qemu_put_8s (f, &d->head);
2418	qemu_put_8s (f, &d->track);
2419	qemu_put_8s (f, &d->sect);
2420	qemu_put_8s (f, &d->dir);
2421	qemu_put_8s (f, &d->rw);
2422	qemu_put_be32s (f, &d->flags);
2423	qemu_put_8s (f, &d->last_sect);
2424	qemu_put_8s (f, &d->max_track);
2425	qemu_put_be16s (f, &d->bps);
2426	qemu_put_8s (f, &d->ro);
2427	}
2428	return TMR3TimerSave (s->result_timer, pSSMHandle);
2429	}
2430
2431	static DECLCALLBACK(int) LoadExec (PPDMDEVINS pDevIns,
2432	PSSMHANDLE pSSMHandle,
2433	uint32_t u32Version)
2434	{
2435	fdctrl_t s = PDMINS_2_DATA (pDevIns, fdctrl_t );
2436	QEMUFile *f = pSSMHandle;
2437	unsigned int i;
2438
2439	if (u32Version != 1) {
2440	AssertMsgFailed(("u32Version=%d\n", u32Version));
2441	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
2442	}
2443
2444	qemu_get_8s (f, &s->version);
2445	qemu_get_8s (f, &s->irq_lvl);
2446	qemu_get_8s (f, &s->dma_chann);
2447	qemu_get_be32s (f, &s->io_base);
2448	qemu_get_8s (f, &s->state);
2449	qemu_get_8s (f, &s->dma_en);
2450	qemu_get_8s (f, &s->cur_drv);
2451	qemu_get_8s (f, &s->bootsel);
2452	qemu_get_buffer (f, s->fifo, FD_SECTOR_LEN);
2453	qemu_get_be32s (f, &s->data_pos);
2454	qemu_get_be32s (f, &s->data_len);
2455	qemu_get_8s (f, &s->data_state);
2456	qemu_get_8s (f, &s->data_dir);
2457	qemu_get_8s (f, &s->int_status);
2458	qemu_get_8s (f, &s->eot);
2459	qemu_get_8s (f, &s->timer0);
2460	qemu_get_8s (f, &s->timer1);
2461	qemu_get_8s (f, &s->precomp_trk);
2462	qemu_get_8s (f, &s->config);
2463	qemu_get_8s (f, &s->lock);
2464	qemu_get_8s (f, &s->pwrd);
2465
2466	for (i = 0; i < sizeof (s->drives) / sizeof (s->drives[0]); ++i) {
2467	fdrive_t *d = &s->drives[i];
2468
2469	SSMR3GetMem (pSSMHandle, &d->Led, sizeof (d->Led));
2470	qemu_get_be32s (f, &d->drive);
2471	qemu_get_be32s (f, &d->drflags);
2472	qemu_get_8s (f, &d->perpendicular);
2473	qemu_get_8s (f, &d->head);
2474	qemu_get_8s (f, &d->track);
2475	qemu_get_8s (f, &d->sect);
2476	qemu_get_8s (f, &d->dir);
2477	qemu_get_8s (f, &d->rw);
2478	qemu_get_be32s (f, &d->flags);
2479	qemu_get_8s (f, &d->last_sect);
2480	qemu_get_8s (f, &d->max_track);
2481	qemu_get_be16s (f, &d->bps);
2482	qemu_get_8s (f, &d->ro);
2483	}
2484	return TMR3TimerLoad (s->result_timer, pSSMHandle);
2485	}
2486
2487	/**
2488	* Queries an interface to the driver.
2489	*
2490	* @returns Pointer to interface.
2491	* @returns NULL if the interface was not supported by the device.
2492	* @param pInterface Pointer to IDEState::IBase.
2493	* @param enmInterface The requested interface identification.
2494	*/
2495	static DECLCALLBACK(void *) fdQueryInterface (PPDMIBASE pInterface,
2496	PDMINTERFACE enmInterface)
2497	{
2498	fdrive_t *drv = PDMIBASE_2_FDRIVE(pInterface);
2499	switch (enmInterface) {
2500	case PDMINTERFACE_BASE:
2501	return &drv->IBase;
2502	case PDMINTERFACE_BLOCK_PORT:
2503	return &drv->IPort;
2504	case PDMINTERFACE_MOUNT_NOTIFY:
2505	return &drv->IMountNotify;
2506	default:
2507	return NULL;
2508	}
2509	}
2510
2511	/**
2512	* Gets the pointer to the status LED of a unit.
2513	*
2514	* @returns VBox status code.
2515	* @param pInterface Pointer to the interface structure containing the called function pointer.
2516	* @param iLUN The unit which status LED we desire.
2517	* @param ppLed Where to store the LED pointer.
2518	*/
2519	static DECLCALLBACK(int) fdcStatusQueryStatusLed (PPDMILEDPORTS pInterface,
2520	unsigned iLUN,
2521	PPDMLED *ppLed)
2522	{
2523	fdctrl_t fdctrl = (fdctrl_t )
2524	((uintptr_t )pInterface - RT_OFFSETOF (fdctrl_t, ILeds));
2525	if (iLUN < RT_ELEMENTS(fdctrl->drives)) {
2526	*ppLed = &fdctrl->drives[iLUN].Led;
2527	Assert ((*ppLed)->u32Magic == PDMLED_MAGIC);
2528	return VINF_SUCCESS;
2529	}
2530	return VERR_PDM_LUN_NOT_FOUND;
2531	}
2532
2533
2534	/**
2535	* Queries an interface to the status LUN.
2536	*
2537	* @returns Pointer to interface.
2538	* @returns NULL if the interface was not supported by the device.
2539	* @param pInterface Pointer to IDEState::IBase.
2540	* @param enmInterface The requested interface identification.
2541	*/
2542	static DECLCALLBACK(void *) fdcStatusQueryInterface (PPDMIBASE pInterface,
2543	PDMINTERFACE enmInterface)
2544	{
2545	fdctrl_t fdctrl = (fdctrl_t )
2546	((uintptr_t)pInterface - RT_OFFSETOF (fdctrl_t, IBaseStatus));
2547	switch (enmInterface) {
2548	case PDMINTERFACE_BASE:
2549	return &fdctrl->IBaseStatus;
2550	case PDMINTERFACE_LED_PORTS:
2551	return &fdctrl->ILeds;
2552	default:
2553	return NULL;
2554	}
2555	}
2556
2557
2558	/**
2559	* Configure a drive.
2560	*
2561	* @returns VBox status code.
2562	* @param drv The drive in question.
2563	* @param pDevIns The driver instance.
2564	*/
2565	static int fdConfig (fdrive_t *drv, PPDMDEVINS pDevIns)
2566	{
2567	static const char *descs[] = {"Floppy Drive A:", "Floppy Drive B"};
2568	int rc;
2569
2570	/*
2571	* Reset the LED just to be on the safe side.
2572	*/
2573	Assert (RT_ELEMENTS(descs) > drv->iLUN);
2574	Assert (drv->Led.u32Magic == PDMLED_MAGIC);
2575	drv->Led.Actual.u32 = 0;
2576	drv->Led.Asserted.u32 = 0;
2577
2578	/*
2579	* Try attach the block device and get the interfaces.
2580	*/
2581	rc = PDMDevHlpDriverAttach (pDevIns, drv->iLUN, &drv->IBase, &drv->pDrvBase, descs[drv->iLUN]);
2582	if (RT_SUCCESS (rc)) {
2583	drv->pDrvBlock = drv->pDrvBase->pfnQueryInterface (
2584	drv->pDrvBase,
2585	PDMINTERFACE_BLOCK
2586	);
2587	if (drv->pDrvBlock) {
2588	drv->pDrvBlockBios = drv->pDrvBase->pfnQueryInterface (
2589	drv->pDrvBase,
2590	PDMINTERFACE_BLOCK_BIOS
2591	);
2592	if (drv->pDrvBlockBios) {
2593	drv->pDrvMount = drv->pDrvBase->pfnQueryInterface (
2594	drv->pDrvBase,
2595	PDMINTERFACE_MOUNT
2596	);
2597	if (drv->pDrvMount) {
2598	/*
2599	* Init the state.
2600	*/
2601	drv->drive = FDRIVE_DRV_NONE;
2602	drv->drflags = 0;
2603	drv->perpendicular = 0;
2604	/* Disk */
2605	drv->last_sect = 0;
2606	drv->max_track = 0;
2607	drv->fMediaPresent = false;
2608	} else {
2609	AssertMsgFailed (("Configuration error: LUN#%d without mountable interface!\n", drv->iLUN));
2610	rc = VERR_PDM_MISSING_INTERFACE;
2611	}
2612
2613	} else {
2614	AssertMsgFailed (("Configuration error: LUN#%d hasn't a block BIOS interface!\n", drv->iLUN));
2615	rc = VERR_PDM_MISSING_INTERFACE;
2616	}
2617
2618	} else {
2619	AssertMsgFailed (("Configuration error: LUN#%d hasn't a block interface!\n", drv->iLUN));
2620	rc = VERR_PDM_MISSING_INTERFACE;
2621	}
2622	} else {
2623	AssertMsg (rc == VERR_PDM_NO_ATTACHED_DRIVER,
2624	("Failed to attach LUN#%d. rc=%Rrc\n", drv->iLUN, rc));
2625	switch (rc) {
2626	case VERR_ACCESS_DENIED:
2627	/* Error already catched by DrvHostBase */
2628	break;
2629	case VERR_PDM_NO_ATTACHED_DRIVER:
2630	/* Legal on architectures without a floppy controller */
2631	break;
2632	default:
2633	rc = PDMDevHlpVMSetError (pDevIns, rc, RT_SRC_POS,
2634	N_ ("The floppy controller cannot attach to the floppy drive"));
2635	break;
2636	}
2637	}
2638
2639	if (RT_FAILURE (rc)) {
2640	drv->pDrvBase = NULL;
2641	drv->pDrvBlock = NULL;
2642	drv->pDrvBlockBios = NULL;
2643	drv->pDrvMount = NULL;
2644	}
2645	LogFlow (("fdConfig: returns %Rrc\n", rc));
2646	return rc;
2647	}
2648
2649
2650	/**
2651	* Attach command.
2652	*
2653	* This is called when we change block driver for a floppy drive.
2654	*
2655	* @returns VBox status code.
2656	* @param pDevIns The device instance.
2657	* @param iLUN The logical unit which is being detached.
2658	*/
2659	static DECLCALLBACK(int) fdcAttach (PPDMDEVINS pDevIns,
2660	unsigned iLUN, uint32_t fFlags)
2661	{
2662	fdctrl_t fdctrl = PDMINS_2_DATA (pDevIns, fdctrl_t );
2663	fdrive_t *drv;
2664	int rc;
2665	LogFlow (("ideDetach: iLUN=%u\n", iLUN));
2666
2667	AssertMsgReturn(fFlags & PDMDEVATT_FLAGS_NOT_HOT_PLUG,
2668	("The FDC device does not support hotplugging\n"),
2669	VERR_INVALID_PARAMETER);
2670
2671	/*
2672	* Validate.
2673	*/
2674	if (iLUN > 2) {
2675	AssertMsgFailed (("Configuration error: cannot attach or detach any but the first two LUNs - iLUN=%u\n",
2676	iLUN));
2677	return VERR_PDM_DEVINS_NO_ATTACH;
2678	}
2679
2680	/*
2681	* Locate the drive and stuff.
2682	*/
2683	drv = &fdctrl->drives[iLUN];
2684
2685	/* the usual paranoia */
2686	AssertRelease (!drv->pDrvBase);
2687	AssertRelease (!drv->pDrvBlock);
2688	AssertRelease (!drv->pDrvBlockBios);
2689	AssertRelease (!drv->pDrvMount);
2690
2691	rc = fdConfig (drv, pDevIns);
2692	AssertMsg (rc != VERR_PDM_NO_ATTACHED_DRIVER,
2693	("Configuration error: failed to configure drive %d, rc=%Rrc\n", rc));
2694	if (RT_SUCCESS(rc)) {
2695	fd_revalidate (drv);
2696	}
2697
2698	LogFlow (("floppyAttach: returns %Rrc\n", rc));
2699	return rc;
2700	}
2701
2702
2703	/**
2704	* Detach notification.
2705	*
2706	* The floppy drive has been temporarily 'unplugged'.
2707	*
2708	* @param pDevIns The device instance.
2709	* @param iLUN The logical unit which is being detached.
2710	*/
2711	static DECLCALLBACK(void) fdcDetach (PPDMDEVINS pDevIns,
2712	unsigned iLUN, uint32_t fFlags)
2713	{
2714	fdctrl_t fdctrl = PDMINS_2_DATA (pDevIns, fdctrl_t );
2715	LogFlow (("ideDetach: iLUN=%u\n", iLUN));
2716
2717	switch (iLUN) {
2718	case 0:
2719	case 1: {
2720	fdrive_t *drv = &fdctrl->drives[iLUN];
2721	drv->pDrvBase = NULL;
2722	drv->pDrvBlock = NULL;
2723	drv->pDrvBlockBios = NULL;
2724	drv->pDrvMount = NULL;
2725	break;
2726	}
2727
2728	default:
2729	AssertMsgFailed (("Cannot detach LUN#%d!\n", iLUN));
2730	break;
2731	}
2732	}
2733
2734
2735	/**
2736	* Handle reset.
2737	*
2738	* I haven't check the specs on what's supposed to happen on reset, but we
2739	* should get any 'FATAL: floppy recal:f07 ctrl not ready' when resetting
2740	* at wrong time like we do if this was all void.
2741	*
2742	* @param pDevIns The device instance.
2743	*/
2744	static DECLCALLBACK(void) fdcReset (PPDMDEVINS pDevIns)
2745	{
2746	fdctrl_t fdctrl = PDMINS_2_DATA (pDevIns, fdctrl_t );
2747	unsigned i;
2748	LogFlow (("fdcReset:\n"));
2749
2750	fdctrl_reset(fdctrl, 0);
2751	fdctrl->state = FD_CTRL_ACTIVE;
2752
2753	for (i = 0; i < RT_ELEMENTS(fdctrl->drives); i++) {
2754	fd_revalidate(&fdctrl->drives[i]);
2755	}
2756	}
2757
2758
2759	/**
2760	* Construct a device instance for a VM.
2761	*
2762	* @returns VBox status.
2763	* @param pDevIns The device instance data.
2764	* If the registration structure is needed, pDevIns->pDevReg points to it.
2765	* @param iInstance Instance number. Use this to figure out which registers and such to use.
2766	* The device number is also found in pDevIns->iInstance, but since it's
2767	* likely to be freqently used PDM passes it as parameter.
2768	* @param pCfgHandle Configuration node handle for the device. Use this to obtain the configuration
2769	* of the device instance. It's also found in pDevIns->pCfgHandle, but like
2770	* iInstance it's expected to be used a bit in this function.
2771	*/
2772	static DECLCALLBACK(int) fdcConstruct (PPDMDEVINS pDevIns,
2773	int iInstance,
2774	PCFGMNODE pCfgHandle)
2775	{
2776	int rc;
2777	fdctrl_t fdctrl = PDMINS_2_DATA(pDevIns, fdctrl_t);
2778	unsigned i;
2779	bool mem_mapped;
2780	uint16_t io_base;
2781	uint8_t irq_lvl, dma_chann;
2782	PPDMIBASE pBase;
2783
2784	Assert(iInstance == 0);
2785
2786	/*
2787	* Validate configuration.
2788	*/
2789	if (!CFGMR3AreValuesValid(pCfgHandle, "IRQ\0DMA\0MemMapped\0IOBase\0"))
2790	return VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
2791
2792	/*
2793	* Read the configuration.
2794	*/
2795	rc = CFGMR3QueryU8 (pCfgHandle, "IRQ", &irq_lvl);
2796	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2797	irq_lvl = 6;
2798	else if (RT_FAILURE (rc)) {
2799	AssertMsgFailed (("Configuration error: Failed to read U8 IRQ, rc=%Rrc\n", rc));
2800	return rc;
2801	}
2802
2803	rc = CFGMR3QueryU8 (pCfgHandle, "DMA", &dma_chann);
2804	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2805	dma_chann = 2;
2806	else if (RT_FAILURE (rc)) {
2807	AssertMsgFailed (("Configuration error: Failed to read U8 DMA, rc=%Rrc\n", rc));
2808	return rc;
2809	}
2810
2811	rc = CFGMR3QueryU16 (pCfgHandle, "IOBase", &io_base);
2812	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2813	io_base = 0x3f0;
2814	else if (RT_FAILURE (rc)) {
2815	AssertMsgFailed (("Configuration error: Failed to read U16 IOBase, rc=%Rrc\n", rc));
2816	return rc;
2817	}
2818
2819	rc = CFGMR3QueryBool (pCfgHandle, "MemMapped", &mem_mapped);
2820	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2821	mem_mapped = false;
2822	else if (RT_FAILURE (rc)) {
2823	AssertMsgFailed (("Configuration error: Failed to read bool value MemMapped rc=%Rrc\n", rc));
2824	return rc;
2825	}
2826
2827	/*
2828	* Initialize data.
2829	*/
2830	LogFlow(("fdcConstruct: irq_lvl=%d dma_chann=%d io_base=%#x\n", irq_lvl, dma_chann, io_base));
2831	fdctrl->pDevIns = pDevIns;
2832	fdctrl->version = 0x90; /* Intel 82078 controller */
2833	fdctrl->irq_lvl = irq_lvl;
2834	fdctrl->dma_chann = dma_chann;
2835	fdctrl->io_base = io_base;
2836	fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
2837
2838	fdctrl->IBaseStatus.pfnQueryInterface = fdcStatusQueryInterface;
2839	fdctrl->ILeds.pfnQueryStatusLed = fdcStatusQueryStatusLed;
2840
2841	for (i = 0; i < RT_ELEMENTS(fdctrl->drives); ++i) {
2842	fdrive_t *drv = &fdctrl->drives[i];
2843
2844	drv->drive = FDRIVE_DRV_NONE;
2845	drv->iLUN = i;
2846
2847	drv->IBase.pfnQueryInterface = fdQueryInterface;
2848	drv->IMountNotify.pfnMountNotify = fdMountNotify;
2849	drv->IMountNotify.pfnUnmountNotify = fdUnmountNotify;
2850	drv->Led.u32Magic = PDMLED_MAGIC;
2851	}
2852
2853	/*
2854	* Create the FDC timer.
2855	*/
2856	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, fdc_timer, fdctrl,
2857	TMTIMER_FLAGS_DEFAULT_CRIT_SECT, "FDC Timer", &fdctrl->result_timer);
2858	if (RT_FAILURE (rc))
2859	return rc;
2860
2861	/*
2862	* Register DMA channel.
2863	*/
2864	if (fdctrl->dma_chann != 0xff) {
2865	fdctrl->dma_en = 1;
2866	rc = PDMDevHlpDMARegister (pDevIns, dma_chann, &fdctrl_transfer_handler, fdctrl);
2867	if (RT_FAILURE (rc))
2868	return rc;
2869	} else
2870	fdctrl->dma_en = 0;
2871
2872	/*
2873	* IO / MMIO.
2874	*/
2875	if (mem_mapped) {
2876	AssertMsgFailed (("Memory mapped floppy not support by now\n"));
2877	return VERR_NOT_SUPPORTED;
2878	#if 0
2879	FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
2880	io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
2881	cpu_register_physical_memory(base, 0x08, io_mem);
2882	#endif
2883	} else {
2884	rc = PDMDevHlpIOPortRegister (pDevIns, io_base + 0x1, 5, fdctrl,
2885	fdc_io_write, fdc_io_read, NULL, NULL, "FDC#1");
2886	if (RT_FAILURE (rc))
2887	return rc;
2888
2889	rc = PDMDevHlpIOPortRegister (pDevIns, io_base + 0x7, 1, fdctrl,
2890	fdc_io_write, fdc_io_read, NULL, NULL, "FDC#2");
2891	if (RT_FAILURE (rc))
2892	return rc;
2893	}
2894
2895	/*
2896	* Register the saved state data unit.
2897	*/
2898	rc = PDMDevHlpSSMRegister (pDevIns, pDevIns->pDevReg->szDeviceName, iInstance, 1, sizeof(*fdctrl),
2899	NULL, SaveExec, NULL, NULL, LoadExec, NULL);
2900	if (RT_FAILURE(rc))
2901	return rc;
2902
2903	/*
2904	* Attach the status port (optional).
2905	*/
2906	rc = PDMDevHlpDriverAttach (pDevIns, PDM_STATUS_LUN, &fdctrl->IBaseStatus, &pBase, "Status Port");
2907	if (RT_SUCCESS (rc)) {
2908	fdctrl->pLedsConnector =
2909	pBase->pfnQueryInterface (pBase, PDMINTERFACE_LED_CONNECTORS);
2910	} else if (rc != VERR_PDM_NO_ATTACHED_DRIVER) {
2911	AssertMsgFailed (("Failed to attach to status driver. rc=%Rrc\n",
2912	rc));
2913	return rc;
2914	}
2915
2916	/*
2917	* Initialize drives.
2918	*/
2919	for (i = 0; i < RT_ELEMENTS(fdctrl->drives); i++) {
2920	fdrive_t *drv = &fdctrl->drives[i];
2921	rc = fdConfig (drv, pDevIns);
2922	if ( RT_FAILURE (rc)
2923	&& rc != VERR_PDM_NO_ATTACHED_DRIVER) {
2924	AssertMsgFailed (("Configuration error: failed to configure drive %d, rc=%Rrc\n", rc));
2925	return rc;
2926	}
2927	}
2928
2929	fdctrl_reset(fdctrl, 0);
2930	fdctrl->state = FD_CTRL_ACTIVE;
2931
2932	for (i = 0; i < RT_ELEMENTS(fdctrl->drives); i++)
2933	fd_revalidate(&fdctrl->drives[i]);
2934
2935	return VINF_SUCCESS;
2936	}
2937
2938	/**
2939	* The device registration structure.
2940	*/
2941	const PDMDEVREG g_DeviceFloppyController =
2942	{
2943	/* u32Version */
2944	PDM_DEVREG_VERSION,
2945	/* szDeviceName */
2946	"i82078",
2947	/* szRCMod */
2948	"",
2949	/* szR0Mod */
2950	"",
2951	/* pszDescription */
2952	"Floppy drive controller (Intel 82078)",
2953	/* fFlags */
2954	PDM_DEVREG_FLAGS_DEFAULT_BITS,
2955	/* fClass */
2956	PDM_DEVREG_CLASS_STORAGE,
2957	/* cMaxInstances */
2958	1,
2959	/* cbInstance */
2960	sizeof(fdctrl_t),
2961	/* pfnConstruct */
2962	fdcConstruct,
2963	/* pfnDestruct */
2964	NULL,
2965	/* pfnRelocate */
2966	NULL,
2967	/* pfnIOCtl */
2968	NULL,
2969	/* pfnPowerOn */
2970	NULL,
2971	/* pfnReset */
2972	fdcReset,
2973	/* pfnSuspend */
2974	NULL,
2975	/* pfnResume */
2976	NULL,
2977	/* pfnAttach */
2978	fdcAttach,
2979	/* pfnDetach */
2980	fdcDetach,
2981	/* pfnQueryInterface. */
2982	NULL,
2983	/* pfnInitComplete */
2984	NULL,
2985	/* pfnPowerOff */
2986	NULL,
2987	/* pfnSoftReset */
2988	NULL,
2989	/* u32VersionEnd */
2990	PDM_DEVREG_VERSION
2991	};
2992
2993	#endif /* VBOX */
2994
2995	/*
2996	* Local Variables:
2997	* mode: c
2998	* c-file-style: "k&r"
2999	* indent-tabs-mode: nil
3000	* End:
3001	*/
3002

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source: vbox/trunk/src/VBox/Devices/Storage/fdc.c@ 22264

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